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Zeitschriftenartikel zum Thema „Feeding roller“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 8. Februar 2022

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1

Xu, Xiao Jing, Zhen Dan Fei, Cheng Cheng, Zeng Lei Zhang, Zi Hao Zhao und Xin Dong Zhu. „Study on Rollers’ Angular Velocity Matching of Rolling Driven Equal Channel Angular Deformation Technology“. Advanced Materials Research 189-193 (Februar 2011): 974–78. http://dx.doi.org/10.4028/www.scientific.net/amr.189-193.974.

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Rollers’angular velocity matching of rolling driven equal channel angular deformation technology was investigated numerically by using finite element code DEFORM-3D. The results show that as the angular velocity of primary feeding roller is constant, the rollers’ angular velocity matching had only small influences on effective strain and output velocity, but had significant influence on torque of feeding rollers. With the decrease of angular velocity ratio of primary feeding roller to secondary feeding roller from 1.37 to 0.073, the torque of feeding rollers tend to become uniform. It was found that an appropriate selection of rollers’ angular velocity matching and friction factor can save energy consumption significantly.

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2

Honma, Katsumi, und Shin-ichi Nakajima. „Development of a Liquid Packaging Machine Positioning Control on Moving Film“. International Journal of Automation Technology 5, Nr. 1 (05.01.2011): 61–65. http://dx.doi.org/10.20965/ijat.2011.p0061.

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A liquid packaging machine produces liquid packaging bags from roll film by cooperatively controlling the vertical seal roller, horizontal seal roller, and cut roller. These rollers are driven separately by servomotors as a multi-axis servo mechanism. Positioning control on the moving film is essential to make bags of accurate size. To achieve accurate positioning without lowering productivity, we propose two control methods. One is a two-step velocity control of the horizontal seal roller. This method enables continuous and high speed production of bags of arbitrary size. The second is phase control, which determines the accuracy of the cutting position on the film according to the sealing position. Phase control changes the rotary phase difference of the horizontal seal roller and the cut roller by adjusting the high feeding velocity of the cut roller, or by adjusting the low feeding velocity of the cut roller. The control system developed was applied to a DANGANV liquid packaging machine.

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3

Ebrahimi, Seyed Mohammad, Seyed Ali Asghar Akbari Mousavi, Mostafa Soltan Bayazidi und Mohammad Mastoori. „Numerical Study of the Flow Forming Process of AISI 630 Stainless Steel“. Advanced Materials Research 264-265 (Juni 2011): 24–29. http://dx.doi.org/10.4028/www.scientific.net/amr.264-265.24.

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Flow forming is one of the cold forming process which is used for hollow symmetrical shapes. In this paper, the forward flow forming process is simulated using the finite element method and its results are compared with the experimental process. The variation of thickness of the sample is examined by the ultrasonic tests for the five locations of the tubes. To simulate the process, the ABAQUS explicit is used. The effects of flow forming variables such as the angle of rollers and rate of feeding of rollers, on the external variables such as internal diameter, thickness of tube and roller forces are considered. The study showed that the roller force and surface defects were reduced with low feeding rate and low rollers attack angles. Moreover, the sample internal diameter increased at low feeding rate and low rollers attack angles. The optimum variables for flow forming process were also obtained.

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4

Zhao, Ming Lei. „The Dynamic Property Analysis of Ink System in Offset Press“. Advanced Materials Research 199-200 (Februar 2011): 132–36. http://dx.doi.org/10.4028/www.scientific.net/amr.199-200.132.

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The printing quality is decided by the ink system, which is heavy and complicated in offset press. Structure optimization and parameter modification is the key step of seeking better performance in the ink system. In this paper, the ink system of modern offset press was the research object, seeking the discrepancy of different structures and parameters. The surfaces of ink rollers and cylinders were discreted by computer simulation,based on this,established the math model of steady time in batch and continuous ink feeding system, then analysised the feeding system and vibration system. The simulation result indicates that the ink feeding system, the way of vibrator oscillation, plate coverage have great influence on the dynamic property. In batch ink feeding system, the property of ink system would be improved by increasing ductor roller swing frequency, and approached to continuous ink feeding system. On the machine with adjustable ductor roller swing frequency, the steady time would be reduced by regulating ductor roller swing frequency, improved efficiency with reducing paper wasting.

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5

Choct, M., E. A. D. Selby, D. J. Cadogan und R. G. Campbell. „Effects of particle size, processing, and dry or liquid feeding on performance of piglets“. Australian Journal of Agricultural Research 55, Nr. 2 (2004): 237. http://dx.doi.org/10.1071/ar03105.

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Currently, most feed grains are processed by either hammer mill or roller mill before the inclusion in pig diets. However, the effect of these two types of milling and particle size on the performance and feed utilisation has not been adequately examined. The effect of milling processing (hammer mill v. roller mill), particle size, and feeding method (liquid v. dry) was assessed in a factorial design with 120 weaner pigs over 21 days. These pigs had been weaned for 7 days when the experiment commenced. The results revealed that pigs fed on hammer-milled diets had a better performance than those on roller-milled diets. Particle size of hammer-milled diets did not affect the performance of pigs, but influenced the digestible energy content of the diets. However, the feed conversion ratio was poorer for pigs fed coarsely or medium roller-milled diets only at Day 7–14 after weaning. There was a marked advantage in terms of feed efficiency associated with liquid feeding. For pigs offered the hammer-milled diets between 0 and 14 days, simply adding the feed to water improved feed efficiency by some 22%. For the roller-milled diets the corresponding improvement in feed efficiency was 28%. Liquid feeding improved digestible energy (DE) value by 1.5 MJ/kg for medium particle size and depressed DE value by 0.8 MJ/kg for fine particle size for hammer mill. Liquid feeding improved DE values for both medium and fine particle treatments by 0.9 MJ/kg for roller-milled diets. It should be noted that the full advantages of liquid feeding could only be taken if feed wastage from this system can be minimised as much as possible.The study was conducted to investigate if processing method (roller v. hammer mill), particle size (coarse, medium, and fine), and feeding method (liquid v. dry) significantly improved the growth rate, feed intake, and feed conversion of the weaner pig.

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6

Liu, Xue Jiang, Hai Sheng Liu, Jing Liu und Hui Gang Wang. „Numerical Simulation of Plate Bender Bending Process“. Advanced Materials Research 189-193 (Februar 2011): 2228–32. http://dx.doi.org/10.4028/www.scientific.net/amr.189-193.2228.

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The plate’s mechanical behavior of three-roller plate bending machine had been analyzed in case of upper roller feeding based on ANSYS. Strain and stress distribution of the plate and its changes are gained. The influence of upper roller’s feeding location and bending velocity to bending process are researched. The results are valuable to bending process optimization and practical technique of plate bending.

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7

Peng, Wen Fei, Jing Jing Liang, Xue Dao Shu, Bao Shou Sun und Min Xiao. „The Rolling Force Analysis of Closed Ring Rolling High-Neck Flange“. Applied Mechanics and Materials 201-202 (Oktober 2012): 1130–34. http://dx.doi.org/10.4028/www.scientific.net/amm.201-202.1130.

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The rolling force will directly have influence on the size of high-neck flange and whether the rolled part will be shaped successfully. Finite element model of closed ring rolling high-neck flange was established, the effect of process parameters on rolling force and its reasons are analyzed. The results show that, the higher feeding speed is, the larger the amplification of rolling force will be, in addition, rolling force will be reduced slightly with the increase of rotational speed of driving roller, and the influence on the rolling force of compressing roller’s feeding speed is much larger than driving roller’s rotational speed.

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8

Li, Xin Ping. „Study on Relationship of Feeding Form and Threshing-Cleaning Rate of Corn Ears“. Advanced Materials Research 753-755 (August 2013): 1462–66. http://dx.doi.org/10.4028/www.scientific.net/amr.753-755.1462.

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For improving threshing-cleaning rate of corn ears in the process of threshing and mastering relationship of threshing-cleaning rate of corn ears and moisture content of kernel, feeding form of corn ears, threshing roller speeds, the experiments of corn ears threshed under different feeding form of corn ear and different threshing roller speeds and different moisture content of kernels was proceeded on the threshing device with dual-feeding entrances. Experiment indicate : when the value of moisture content of kernel is 25%, threshing-cleaning rate of corn ears is lower than the value of 13.5% moisture content of kernel; when corn ear is fed from A feeding entrance, the impacting and threshing way is the main threshing way, threshing-cleaning rate of corn ears is high; when corn ear is fed from B feeding entrance, the way with different speeds threshing parts is the main threshing way, threshing-cleaning rate of corn ears is low; when corn ear is fed from A feeding entrance and B feeding entrance, threshing-cleaning rate of corn ears will increase with increase of threshing roller speed under same moisture content.

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9

Berson, R. E., und G. Friederichs. „A Self-Feeding Roller Bottle for Continuous Cell Culture“. Biotechnology Progress 24, Nr. 1 (01.02.2008): 154–57. http://dx.doi.org/10.1021/bp070122w.

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10

OKAMOTO, Noriaki. „Characteristic analysis of paper feeding with rubber-covered roller“. Proceedings of the Conference on Information, Intelligence and Precision Equipment : IIP 2004 (2004): 5–10. http://dx.doi.org/10.1299/jsmeiip.2004.5.

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11

Burlakov, Yu V. „Using the roller threshing device for threshing fiber flax“. Siberian Herald of Agricultural Science 50, Nr. 6 (31.12.2020): 115–23. http://dx.doi.org/10.26898/0370-8799-2020-6-13.

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The ways of increasing efficiency of the factory technology for harvesting fiber flax with threshing stem band from the rolls were studied. The experiment was carried out in stationary conditions with a moisture content of the source material of no more than 16%. A roller threshing device was proposed for separating the seed part of the crop from the stem before feeding stems into the fiber production line. The device ensures threshing of the fiber flax stem band over its entire width without using a separate clamping conveyor. The places where the seed heap descends from the roller threshing device while threshing flax stem band were identified. Quality indicators of the roller threshing device operation were obtained ensuring 100% threshing of the fiber flax band with a band compression force between the rollers of 16 kN. With this method of threshing, damage and crushing of seeds were not noted, the stems were evenly flattened along their entire length. Fractional composition of the threshed heap was determined during threshing of a fiber flax stem band between the rolls of the laboratory sample of a three-roll threshing device: loose seeds (50%), shells of capsules with fruitstalks (47), capsules with seeds (3), heap of leaves and stems (less than 1%). The results of the study in stationary conditions showed the expediency of using roller working bodies to separate the seed part of the crop from the stem part for the technical support of the factory technology for harvesting fiber flax. The use of roller working bodies in the design of threshing devices without a separate clamping conveyor allows to increase the quality and quantity of flax products obtained both in seeds and in fiber due to the improvement of the process of gentle flattening of the stem band between the rollers along its entire width. The concept of this roller threshing device is advisable to use when designing trailers and travelling flax harvesting machines for the implementation of a separate technology for harvesting fiber flax.

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12

Ruan, Jing Lan, und Le Le Jia. „The Numerical Simulation and Optimization of Feeding Velocity in Rubber Roller Husker Vibrating Feeder“. Applied Mechanics and Materials 635-637 (September 2014): 233–36. http://dx.doi.org/10.4028/www.scientific.net/amm.635-637.233.

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Establish the mathematical model of feeding velocity in Rubber Roller Husker vibrating feeder through analyzing the material movement, and determine the relational expression according to the theory analysis of material movement in the feeder. Analyzing the influence of groove obliquity angle , vibrating direction angle, frequencyand amplitude, which are simulated numerically by using the MATLAB software, and optimizing the material theoretical speed are the main objective. The optimal parameters of transmission and the experimental verification can provide more reference for the design of the Rubber Roller Husker vibrating feeding system.

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13

Wu, Yin Feng, Jian Wei Liang und Ling Liang. „Design of Single Roller Scutcher Control System Based on PLC“. Advanced Materials Research 546-547 (Juli 2012): 795–99. http://dx.doi.org/10.4028/www.scientific.net/amr.546-547.795.

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This paper analyzes the control requirements of scutcher and introduces the control system scheme which is composed of programmable logic controller, touch panel and inverter. And it emphasizes the hardware constitution of S7-200 PLC control system, the pressure detection and display of cotton feeding pipeline, together with the principles of the beater speed test program and the control program of cotton feeding motor.The scutcher control system can feed cotton continuously and equably and ensure the pressure stability of the cotton feeding pipeline. In this way, it can adjust process conveniently, decrease fault rate and cut the design development cycle of new equipments to improve the control level of textile machinery.

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14

Zhang, R. Y., S. W. Yu, K. H. Zhang und F. C. Wang. „Spinnability of Semi-Continuous Casting 7A09 Aluminum Alloy“. Advanced Materials Research 97-101 (März 2010): 361–64. http://dx.doi.org/10.4028/www.scientific.net/amr.97-101.361.

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7A09 aluminum alloy is served as an important structural material in many fields. In this paper, power spinning of semi-continuous casting 7A09 aluminum alloy tube blank was carried out, and the effects of process parameters, such as spinning temperature and roller feeding ratio, on spinnability were analyzed, further the mechanical property was tested on a tensile testing machine. The results show that: at 300°C and 1.2mm/r roller feeding ratio, semi-continuous casting 7A09 aluminum alloy tube blank has good spinnability; after spun, the yield strength is increased 44%, and elongation is increased 130%.

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15

Okada, Masato, Makoto Shinke, Takuya Kitagawa, Tomoaki Inoue, Satoshi Yasutani, Takuya Miura und Masaaki Otsu. „Influence of Tool Feed Conditions on Surface Integrity in Roller Burnishing with Rolling and Sliding Effects“. Key Engineering Materials 825 (Oktober 2019): 13–18. http://dx.doi.org/10.4028/www.scientific.net/kem.825.13.

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The influence of tool feed conditions on the burnished-surface integrity obtained by roller burnishing, which can generate the sliding effect, adding to the rolling effect at burnishing point, is addressed. A JIS SCM420 steel round bar was used as the workpiece. The surface integrity was improved by feeding the roller in the same direction with the sliding effect and by decreasing the tool feed rate. A better surface was achieved when the roller was fed in the opposite direction to the feed direction of the turning tool in a preceding process of the burnishing.

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16

Michalak, Andrzej, Maciej Kuchar und Zbigniew Mikołajczyk. „Impact of Whip Roller Parameters on Warp Dynamic Loads for 3D Fabrics Made on a Four-Comb Warp-Knitting Machine“. Autex Research Journal 20, Nr. 1 (01.03.2020): 73–77. http://dx.doi.org/10.2478/aut-2019-0025.

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AbstractThe most advantageous geometry of the warp feeding system was determined from the viewpoint of compensating temporary changes in the warp length during the technological cycle of a four-comb warp-knitting machine. Dynamic simulations of the feeding system were carried out for 3 different lengths of the shift of the slider with a guide bar – designating variants (series) of the cross-sectional sizes of the 3D knitted fabrics. The courses of instantaneous warp tensions during the operating cycle of the warp-knitting machine were presented. Limit dynamic loads of the warp were determined and presented as a function of natural frequency of the whip roller. Based on the criterion of the smallest dynamic loads of the warp, the optimum natural frequencies of the whip roller were determined. In the analyzed range of the whip roller parameters, they are 3–6 times greater than the operation frequency of the warp-knitting machine.

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17

Coulson, Caitlin A., Nicole Woita, Tyler Spore, Hannah Wilson, Kylie Butterfield und Galen E. Erickson. „255 Evaluation of Different Corn Milling Methods for High-moisture and Dry Corn on Nutrient Digestion“. Journal of Animal Science 99, Supplement_1 (01.05.2021): 124–25. http://dx.doi.org/10.1093/jas/skab054.207.

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Abstract A 2 × 2 factorial digestion study using seven ruminally cannulated steers evaluated the effect of feeding diets containing 70% (dry matter-basis) high-moisture (HMC) or dry corn (DC), processed with either a hammer mill or Automatic Ag Roller Mill (Pender, NE), on nutrient digestion. Feeding HMC decreased the amount of excreted dry matter (DM) and organic matter (OM; P ≤ 0.01) regardless of mill type, but there was a tendency (P ≤ 0.13) for an interaction between corn type and mill type for DM and OM digestibility. There was no difference between either milling treatments fed as HMC (P ≥ 0.69), but the hammer mill DC diet was more digestible than the roller mill DC (P = 0.05). There was no effect on NDF digestibility, but there was a tendency for an interaction between grain type and processing method for ADF digestibility, with the roller mill DC diet having the lowest (P = 0.02) ADF digestibility and no differences (P ≥ 0.15) among the other treatments. As expected, HMC based diets had greater (P < 0.01) starch digestibility compared to DC, but milling method had no effect (P = 0.56). High moisture corn diets had greater (P = 0.01) DE intake (Mcal/kg), and hammer mill DC tended to be greater (P = 0.07) than roller mill DC. There tended (P = 0.07) to be an interaction for minimum pH, with roller mill HMC and hammer mill DC having the lowest average pH, but not different from hammer mill HMC (P ≥ 0.32). There were no differences (P = 0.56) in average pH, but HMC diets had greater variance (P = 0.04) and greater area under pH 5.6 (P = 0.05) compared to DC based diets. Feeding cattle HMC compared to DC increases nutrient digestibility but milling process had little impact.

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18

Wang, Jiawei, Zhiwei Li, Saddam Hussain, Qi Lu, Haiyan Song und Decong Zheng. „DESIGN AND THRESHING OUTPUTS STUDY OF INTERNAL AND EXTERNAL ROTARY ROLLER BUCKWHEAT THRESHER“. INMATEH Agricultural Engineering 60, Nr. 1 (30.04.2020): 173–82. http://dx.doi.org/10.35633/inmateh-60-20.

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In order to study the distribution of buckwheat threshing outputs, on the self-designed internal and external rotary roller buckwheat threshing device test bench, the feeding amount was 0.5 kg/s, the internal roller speed was 380 r/min, and the external roller speed was +50 r/min (same direction as the internal roller), 0 r/min and -50 r/min (reverse direction compared to the internal roller) for threshing test. By analysing the overall condition of the threshing outputs, the content of each component in the threshing outputs, and the axial distribution of the threshing roller, it was found that the receiving box below the rasp bar roller mainly contained grains and chaff, leaves and petals, and the receiving box below the spike tooth roller mainly contained short stalks. Under the three conditions, the proportion of chaff in the threshing outputs was 40-45%, the proportion of leaves and petals was 23-29%, the proportion of grains was 13-19%, the proportion of short stalks was 14-16%. Grains, chaff, leaves and petals were mainly concentrated at the front, and short stalks were mainly distributed at the rear of the threshing roller, providing a theoretical basis for the design of the cleaning system.

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19

TSUJIUCHI, Nobutaka, Takayuki kOIZUMI und Toru KAWAMURA. „Analysis of Slip-Phenomenon of Paper Feeding System with Protrusion Roller.“ Transactions of the Japan Society of Mechanical Engineers Series C 69, Nr. 680 (2003): 1058–64. http://dx.doi.org/10.1299/kikaic.69.1058.

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20

MISAWA, Keiichiro, Noriaki OKAMOTO, Kenji YOSHIDA und Masayuki KOMORI. „424 Dynamic Study on Mechanism of Paper Feeding with Rubber Roller“. Proceedings of Conference of Kanto Branch 2001.7 (2001): 393–94. http://dx.doi.org/10.1299/jsmekanto.2001.7.393.

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21

OKAYAMA, Masao, Shigenori SATOU, Yutaka NAGASAWA und Yutaka KAKO. „Mechanism of Double Sheet Feeding on the Roller Overlapping Friction Feeder.“ Transactions of the Japan Society of Mechanical Engineers Series C 62, Nr. 600 (1996): 3153–58. http://dx.doi.org/10.1299/kikaic.62.3153.

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22

Ali, Khaled Abdeen Mous, Wangyuan Zong, Hafiz Md-Tahir, Lina Ma und Liu Yang. „Design, Simulation and Experimentation of an Axial Flow Sunflower-Threshing Machine with an Attached Screw Conveyor“. Applied Sciences 11, Nr. 14 (08.07.2021): 6312. http://dx.doi.org/10.3390/app11146312.

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Sunflower threshing is one of the most interesting field processes for making the sunflower ready for seed handling, drying, cleaning and oil extraction. One of the biggest problems observed during the sunflower threshing process is the accumulation of threshed crop on the first third of the threshing roller and passing off some unthreshed parts of sunflower heads. To solve the aforementioned problem and optimize the efficiency of the sunflower threshing process, this research was focused on devising and testing a sunflower threshing machine with a close threshing box system equipped with a screw conveyor that evenly distributed the feedstock of sunflower heads on the entire length of the threshing roller. The machine was tested to assess the seed damage rate, unthreshed seed percentage, threshing efficiency, machine productivity, power requirements and specific energy consumption. The evaluation was done under different roller rotational speeds (150, 200, 250 and 300 rpm) and feeding rates (600, 700, 800 and 900 kg/h). The obtained results revealed that the threshing evaluation parameters were affected significantly by the roller rotational speed and feeding rate. The threshing efficiency was observed to rise with the rise in the roller rotational speed, and it also rose with the increasing feed rate up to 800 kg/h and then started to descend. The unthreshed seed percentage decreased with the increase in the roller rotational speed for all feed rates, and it decreased with the increasing feed rate up to 800 kg/h and then started to increase at the higher feed rates. The damaged seed percentage, power requirement and machine productivity increased with the increase of the roller speed and feed rate. The Buckingham π theorem was followed to find an equation to predict the threshing efficiency, resulting in an equation with an R2 value of 0.9309. With elimination of the blockage problem and better threshing efficiency, this machine could be a good choice for small- to medium-sized sunflower farms.

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Sun, Bao Shou, Geng Feng, Xue Dao Shu, Liang Tao Qi und Shuo Pang. „The Research on Diameter Growth of Deep Groove Ball Bearing Inner Ring in Cold Rolling Process“. Advanced Materials Research 1095 (März 2015): 883–87. http://dx.doi.org/10.4028/www.scientific.net/amr.1095.883.

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There is a close relationship between cold ring rolling product quality and ring diameter growth rate in cold rolling process, but the technological parameters are main factors in influencing ring diameter growth. The paper used both numerical simulation and experimental verification to study the effect of the core roller speed and wide-diameter ratio on increment of ring diameter in cold rolling process of deep groove ball bearing inner ring. It is found that the core roller has greater influence on diameter growth, and the faster the feeding speed of core roller is , the greater the increment of ring diameter is. Finally, it is verified that the agreement between numerical simulation and experiments is good.

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Lin, Jia Horng, Wen Hao Hsing, Ching Wen Lin, Chien Teng Hsieh, Wen Tai Cho und Ching Wen Lou. „Manufacturing Design of the Novel Multi-Layer Blending Machine“. Advanced Materials Research 233-235 (Mai 2011): 3023–26. http://dx.doi.org/10.4028/www.scientific.net/amr.233-235.3023.

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In this study, a multi-layer blending machine was designed to mix cotton evenly. Being put inside via the feeding port, cotton was spread evenly by the oscillator which moves from left to right back and forth successively. Subsequently, cotton was stored as the multi-layer fibrous cotton in the rear reserve tank. Delivered by the first and the second conveyer belt, the fibrous cotton was sent to the front storage chamber to be cut by a lattice which pulled and dragged the marching cotton vertically. Finally, the processed cotton was rolled out by a striper roller, falling at a certain spot as scheduled, after which spread and blended evenly and thoroughly.

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Liu, Yao, Xin Yue Liu und Bai Yuan Lv. „Research on Spiral Engagement Cold Feeding Rubber Extruder“. Key Engineering Materials 501 (Januar 2012): 283–88. http://dx.doi.org/10.4028/www.scientific.net/kem.501.283.

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Through the experimental comparison of free feeding technology, roller feeding technology and spiral engagement feeding technology, it can be seen that the spiral engagement feeding technology has significantly increased production capacity, improved extrusion stability, reduced the energy consumption and does not hold shaft, not leak rubber, etc; at the same time, industrial application research on spiral engagement cold feeding extruder was carried out, as well as expanding its application research on this extruder with short fiber compound and environmental protection plate compound which is composed by waste plastic, rubber compound and waste oil. It proves that the work principle of spiral engagement cold feeding technology is feasible, also demonstrates that this extruder has a broad prospect of application.

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Xue, Kemin, Chao Wu, Weizheng Yang, Guangxu Dai, Ping Li und Siliang Yan. „Study on Rotary Bending Forming Process of Torsional Damper Shell Pulley“. Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 37, Nr. 5 (Oktober 2019): 1053–59. http://dx.doi.org/10.1051/jnwpu/20193751053.

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To study the integral forming process of torsion damper shell pulley with characteristic structure is of great significance for producing and developing of the rotational part such as shell pulley. A processing way was proposed by combining plate bending forming and roller structure design, to integral forming torsion damper shell pulley. A model for two-step bending forming was establishedvia finite element method. Under the radial feeding of roller, the outer edge of plate was subjected to compress thickening and secondary thickened after bending, and effective stress and metal flow in the deformation zone were analyzed by using marking point. Combining with the structural characteristics of shell pulley, a design criterion "rotating thickening, gathering thickening" of roller was proposed. The metal flow in deformation zone was effectively controlled through the characteristic structure of roller, thereby the specific region to forming multi-wedge toothwas obtained. The quantitative analysis of the instantaneous part section in the forming process, combining with the design criteria of roller structure and material flow rate, radius and arc angle of roller were determined. With the objective forming parameters, the comparison between the simulation results and the experimental are basically coincided, the ribs were fully formed and the specific regions was thickened to minimum value, which verified the feasibility of sheet-bulk metal rotary bending forming theory and the design criterion of roller structure.

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Liu, Xue Qiang, Jian Chun Zhang, Hao Zhang und Xin Hu. „Dynamic Load Simulation Analysis of Hemp Stalk“. Applied Mechanics and Materials 303-306 (Februar 2013): 2724–26. http://dx.doi.org/10.4028/www.scientific.net/amm.303-306.2724.

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The distribution of maximum equivalent stress on hemp stalks at different roller speeds were scavenged by LS-PREPOST function. The stress and strain distributions of hemp stalk under the transversely even-distributed load are analyzed through ANSYS software. The results show that hemp decortication largely depended on the rotation speed of separation roller and the feeding rate. In addition, the failure degree of bast fiber, the maturity and the water content of the stalk, and the difference in mechanical properties and geometrical size should be also taken into account.

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Bahar, Mohammad, und Michael Sinapius. „Adaptive Feeding Roller with An Integrated Cutting System for Automated Fiber Placement (AFP)“. Journal of Composites Science 4, Nr. 3 (16.07.2020): 92. http://dx.doi.org/10.3390/jcs4030092.

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Automated Fiber Placement (AFP) has been used for more than 30 years as a manufacturing process for large components such as aircraft fuselage or nose made of composite materials. As the literature research showed, 85% of efficient AFP head process time is used for the cutting process, accelerating, decelerating and necessary directional changes of the AFP head. The AFP head consists of various modules that synchronize the complete process. In recent years, scientists tried to extend the advantages of this technique and optimize the process. The aim of this article is to show the integration of the cutting unit and the feeding unit in a compact and simple system. Therefore the cutting edge of the tape and the productivity can be increased significantly. The feeding system pulls the tape from the material spool to under the compaction roller. Obviously, the tape should also cut to a predefined length. According to the state of the art, the cutting unit works when the feeding unit is in the standing position. The layup process has therefore a short break, which is no longer required with the new approach. The cutting process is realized without interruption, therefore the lost time during cutting can be saved. The integrated unit is synchronized with the AFP process to apply the active or passive feeding process.

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Ju, Jiang, Yang Zhou, Maodong Kang und Jun Wang. „Optimization of Process Parameters, Microstructure, and Properties of Laser Cladding Fe-Based Alloy on 42CrMo Steel Roller“. Materials 11, Nr. 10 (22.10.2018): 2061. http://dx.doi.org/10.3390/ma11102061.

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The mould foot roller is a key component of a continuous casting machine. In order to investigate the possibility of using laser cladding to repair mould foot roller, Fe-based powders and 42CrMo steel are used in this work. The laser cladding process parameters were optimized by orthogonal experiments. The chemical compositions, microstructure, properties of the cladding layer under the optimum process parameters, and substrate were systematically investigated by using optical microscopy (OM), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), microhardness test, wear test, and salt spray corrosion test. The results indicate that the primary factor affecting the width and depth of the cladding layer is laser power. The scanning speed also has a significant effect on the height of the cladding layer. The optimum process parameters for repairing the mould foot roller are 2 kW laser power, 4 mm/s scanning speed, and 15 g/min feeding rate of powder. Along the depth direction of the cladding layer, the microstructure of the coating gradually transforms from plane crystal, cell grains, or dendrites to equiaxed grains. The matrix is mainly martensite with retained austenite; the eutectic phase is composed of netlike M2B, particulate M23(C,B)6, and M7(C,B)3 phase. The hardness of the cladding layer is significantly improved, about three times that of the substrate. The weight loss of the cladding layer is just half that of the substrate. Its wear resistance and corrosion resistance have been significantly improved. The work period of the laser cladding-repaired foot roller is much longer than for the surfacing welding-repaired one. In summary, laser cladding technology can increase the life of mould foot rollers.

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Wu, Jun Hui, Quan Zhou, Jie Chen, Hui Ping Si und Chi Bin Zhang. „Structural Design for Dynamic Roller Device in Transporting Unit of Biomass Pyrolytic System“. Applied Mechanics and Materials 157-158 (Februar 2012): 361–66. http://dx.doi.org/10.4028/www.scientific.net/amm.157-158.361.

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With the full study of industrial process control technology for thermal, chemical industry, the application process, the FCS system of biomass pyrolysis unit was development combined with the actual. Feeding system uses the weighing system of dynamic belt with an advanced embedded technology. The computing speed and accuracy, data processing compared with traditional electronic belt scale, information exchange, integration, reliability and stability will be greatly improved. The technology shall be constantly upgraded and vigorously promoted. The frame structures of dynamic roller were various in forms. Different systems can be used to the frame with different scale structures. The suspension of multi-scale frame of the roller was used widely currently. The modeling and structural optimization of the frames in reasonable scale were designed with reducing the use of metal materials, optimizing the overall performance of mechanical systems and improving the weighing accuracy. The analysis of dynamic roller in scale weighing and speed principle, the establishment of a multi-roller single floating frame structure of the scale model and the analysis of the roller of the force were built. The verification in final design through the ANSYS software is reasonable.

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MORI, Seiichi, Noriaki OKAMOTO, Takeshi SAKAI und Akihiro URAOKA. „Effect of flexible media property on velocity of feeding with rubber roller“. Proceedings of the JSME annual meeting 2003.4 (2003): 223–24. http://dx.doi.org/10.1299/jsmemecjo.2003.4.0_223.

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Yu, Mingzhe, Chalak Omar, Alexander Schmidt, James D. Litster und Agba D. Salman. „Improving feeding powder distribution to the compaction zone in the roller compaction“. European Journal of Pharmaceutics and Biopharmaceutics 128 (Juli 2018): 57–68. http://dx.doi.org/10.1016/j.ejpb.2018.04.015.

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EXPÓSITO-GRANADOS, MÓNICA, DESEADA PAREJO, OLIVIER CHASTEL und JESÚS M. AVILÉS. „Physiological stress and behavioural responses of European Rollers and Eurasian Scops Owls to human disturbance differ in farming habitats in the south of Spain“. Bird Conservation International 30, Nr. 2 (24.09.2019): 220–35. http://dx.doi.org/10.1017/s0959270919000388.

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SummaryHuman activities are altering ecosystems and threatening the well-being of wildlife. The study of the stressful effects of human disturbances on animal distribution, physiology and behaviour can provide fundamental insights for wildlife conservation. Here, we assess how two declining birds, the European Roller Coracias garrulus and the European Scops Owl Otus scops, cope with alteration by human activities in farming habitats of the south of Spain. We studied nest distribution, quantified nestling physiology (corticosterone levels in plasma and feathers and body weight close to fledgling) and parental behaviour (feeding rates) of both species along a human alteration gradient. Rollers and Scops Owls used the same type of habitat and their spatial distribution was not determined by individual quality. In Rollers, nestlings raised in scrubland areas had high stress-induced corticosterone levels, possibly due to high predation risk in this habitat. In addition, Rollers and Scops Owls showed opposite relationships with farming activity and human disturbance. Nestling Rollers showed the highest corticosterone levels in feathers, weight and parental feeding rates in areas with intense farming activity. These results suggest that despite the disturbance produced by farming activities, inducing a higher stress in these areas, cultivated areas may, simultaneously, provide parents with a higher abundance of prey which would trigger increased feeding rates and, hence, higher nestling weights. Furthermore, nestling Scops Owls showed the highest stress-induced corticosterone levels in areas close to roads, suggesting that they would be affected by human disturbance due to infrastructures that disturb also at night when Scops Owls are active. Therefore, susceptibility to human disturbance may vary between species, probably due to variation in the daily pattern of human activities and the species’ activity rhythm, buffering or exacerbating the effects, which should be considered in future studies on human alterations and birds.

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Sun, Jing Rui, und Jin Cheng Wu. „Research and Implementation of Folding Machine Control System Based on MPU“. Advanced Materials Research 383-390 (November 2011): 5838–43. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.5838.

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The purpose of this paper is to analyze the working principle of folding machine and it also explains the working mode of the stepper motor. Basing on these, the control-system of folding machine is designed. It is through the AT89C52 MPU and the corresponding circuit of periphery to control the two stepper motors. So it can drive the feeding roller and the paper roller to overlay in accordance with the predefined size. The system achieves the automation of folding. It not only reduces the labor, but also improves the efficiency and accuracy of folding. It has a very broad application prospect.

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Chen, Guang Feng, Wei Bin Wang, Hao Chun Sun und Qing Qing Li. „Yarn Feeding Compensation Algorithm and Implementation for Needbar Transverse Shifting of Carpet Tufting Machine“. Advanced Materials Research 179-180 (Januar 2011): 150–55. http://dx.doi.org/10.4028/www.scientific.net/amr.179-180.150.

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The needle bar transverse shifting will likely form the stop mark liked gap on the tufted carpet. This paper proposed the yarn feeding compensation scheme and illustrate implement method in detail. Through analysis the change in yarn feeding path and loop pile forming of carpet tufting machine, construct the mathematical model of length change of yarn feeding in path and usage of loop pile forming while needle bar shifting. According to the mathematical model for yarn feeding compensation, calculate the additional yarn feeding requirement. Base on jacquard control principle, dynamic control the yarn feed actuator to drive the yarn feed roller to delivery additional length yarn, and produce loop pile with predefined pile height, Test result show the compensation is feasible.

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Liu, Yong Xia, Shu Liang Zou, Tao Tang und Qi Wang Zhou. „Study on Simulation of the Chain Transmission Mechanism“. Advanced Materials Research 591-593 (November 2012): 797–800. http://dx.doi.org/10.4028/www.scientific.net/amr.591-593.797.

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The chain transmission’s feature, the main failure form of roller chain and the research for the simulation of the chain transmission mechanism are introduced. Taking the simulation of the chain transmission mechanism in feeding system of a mechanical equipment as the research object, the kinematical properties and the affecting factors are analysed in this paper. It adopts the advanced connection pair to establish relationship between the sprocket-wheel and rollers, and realistically simulates the kinematical characteristics of the chain transmission mechanism. It provides a reference for the optimization design of the structure of the chain and sprocket wheel, through the analysis on the moving velocity and acceleration curve of the chain. It also provides a basis for verifying whether the chain and sprocket-wheel meet the design requirements or not.

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Zhu, X. D., Xiao Jing Xu, Z. H. Zhao, K. Chong, C. Cheng und Xiao Nong Cheng. „The Novel Continuous Large Deformation Technology Integrating Conventional Rolling with Equal-Channel Angular Technology“. Materials Science Forum 667-669 (Dezember 2010): 127–32. http://dx.doi.org/10.4028/www.scientific.net/msf.667-669.127.

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A new continuous severe plastic deformation (SPD) procedure integrating conventional rolling with equal-channel angular deformation (designated CR-ECA deformation procedure) was investigated. Experimental results show that the SPD procedure has the capacity of realizing continuous SPD processing of long-size work-pieces with good surface qualities. Numerical simulations by using finite element code DEFORM-3D show that the number of roller pairs had significant influences on the the CR-ECA deformation procedure. As the number of roller pairs changed from 1 to 2, 3 and 4, the effective strain increased by 10.1 %, 10.1 % and 16.1 %; the output velocity increased by 10.8 %, 15.9 % and 14.4 %; the torque of the primary feeding roller decreased by 19.0 %, 34.7 % and 45.6 %; the total torque increased by 7.0 %, 11.8 % and 13.4 %; and the energy consumption used for making unit volume work-piece subjected to unit effective straining decreased by 12.2 %, 15.0 % and 19.4 %.

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Karim, Md Rejaul, Muhammad Arshadul Hoque, Alamgir Chawdhury, Faruk-Ul-Islam, Sharif Ahmed, Ayman EL Sabagh und Akbar Hossain. „Design, Development, and Performance Evaluation of a Power-Operated Jute Fiber Extraction Machine“. AgriEngineering 3, Nr. 2 (13.06.2021): 403–22. http://dx.doi.org/10.3390/agriengineering3020027.

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Jute is the golden fiber of Bangladesh, but its production is declining due to the involvement of higher production and processing costs, where a major portion of the cost is needed for fiber extraction. Labor unavailability and increasing labor cost have led to higher jute fiber production cost. To address these issues, this study looks at the development of a power-operated and cost-effective fiber extraction machine aiming at reducing the production cost. The study was conducted at the Rangpur regional office premises of Practical Action in Bangladesh, and the developed machine was branded as “Aashkol”, which had the following major parts: a feeding tray, a primary extraction roller, a secondary extraction roller, grabbing rollers, fiber collection stand, base frame, protection cover, and a spring-loaded tray under the primary extraction roller. The Aashkol can extract green ribbon from the jute stem, but jute sticks were broken down into smaller pieces (3–6 cm). The performance evaluation of the machine was conducted using different types of jute (Deshi, Kenaf, and Tossa) and compared with another jute extraction machine (KP model, introduced by Karupannya Rangpur Ltd.). The Aashkol-based extraction and improved retting systems were also evaluated and compared with traditional jute extraction systems. The jute stem input capacity (4.99 t h−1) of the Aashkol was 47.6% higher than the KP model (3.38 t h−1). Compared with the traditional system, across jute types, the Aashkol produced a 9% higher fiber yield and saved 46% retting time. Overall, the Aashkol reduced 90% of the labor requirement and saved 11.6 USD t−1 in jute fiber extraction and retting than the traditional method.

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Abhiram, G., S. Jinthushayi und N. S. Withanage. „Optimization of feeding rate and pressure of Orthodox Roller in Black Tea production“. AGRIEAST: Journal of Agricultural Sciences 12, Nr. 1 (27.06.2018): 16. http://dx.doi.org/10.4038/agrieast.v12i1.48.

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Pryshchepau, M. A., V. A. Daineko und A. M. Pryshchepava. „Substantiation of the algorithm for controlling the adjustable electric drive of roller crusher-grinders of forage grain“. Agricultural Science Euro-North-East 21, Nr. 2 (22.04.2020): 183–98. http://dx.doi.org/10.30766/2072-9081.2020.21.2.183-198.

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In recent years, along with the traditional technology of dry grain storage and grinding before feeding, the technology of preserving crushed grain at an early stage of ripeness is widely used. These technologies do not replace each other, but objectively complement each other, that is, they exist in parallel and require appropriate equipment for their implementation. To do this, it is necessary to use universal energy-efficient equipment for crushing feed grain with a high annual load. As such equipment, it is advisable to use roller crusher-grinders with individual electric drive of the rollers. The process of crushing and grinding grain is significantly affected by the physical and mechanical properties of the grain and the design and technological parameters of roller crusher-grinders. Analysis of the strength properties of the grain shows that in order to reduce the energy intensity the process of crushing the grain must be carried out at a higher moisture content and the deformation rate should be as high as possible. When a certain circumferential speed of the rollers is reached, the process reaches both maximum performance and minimum energy consumption. The control algorithm is based on changing the speed of the rollers stepwise from a lower speed to a higher one. In this case, at each stage a metered portion of grain is crushed between the upper and lower flaps of the vertical loading shaft, and the time by which this portion will have been worked out is measured. This procedure is carried out by changing the speed from lower to higher until the speed at which crushing of the portion will take the minimum time is determined. If the technological process requires a grain grinding mode, the speed of one of the rollers increases from the optimal crushing rate. The speed increase occurs as long as the recu-peration current in the parallel-connected DC buses of the frequency converters increases.

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Zhao, Qun, und Jin Fang Zhao. „Designs of Material Compactor Based on Vibration Theory“. Advanced Materials Research 700 (Mai 2013): 187–90. http://dx.doi.org/10.4028/www.scientific.net/amr.700.187.

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In this paper, a kind of material compactor was designed beginning with the recognition of energy conservation and low cost. Through the study of the influence factors and the mechanization of the material compaction at normal temperature, the author found out better parameters of influencing factors. The improved material compactor consists of a compression roller, backspin rolls, supporting device and other auxiliary devices. The eccentric block inside the compression is driven by the motor to generate exciting force. After the material enters the feeding inlet, it will be squeezed between the compression roller and the backspin rolls. Under the action of both extrusion pressure and vibration, the purpose of material compaction is achieved.

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Dawes, Jason, John F. Gamble, Richard Greenwood, Phil Robbins und Mike Tobyn. „An investigation into the impact of magnesium stearate on powder feeding during roller compaction“. Drug Development and Industrial Pharmacy 38, Nr. 1 (03.08.2011): 111–22. http://dx.doi.org/10.3109/03639045.2011.594802.

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OKAMOTO, Noriaki, Kazuhiro OHTANI, Keiichirou MISAWA und Kenji YOSHIDA. „Study on Velocity Characteristics and Mechanics of Paper Feeding with Rubber-Covered Roller Drive.“ Transactions of the Japan Society of Mechanical Engineers Series C 67, Nr. 654 (2001): 475–82. http://dx.doi.org/10.1299/kikaic.67.475.

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Liu, Shi Biao, Ke Lu Wang, Shi Qiang Lu, Xin Li und Xian Juan Dong. „Feed Speed Design and Optimization in Radial-Axial Ring Rolling Process by FEM“. Advanced Materials Research 421 (Dezember 2011): 513–21. http://dx.doi.org/10.4028/www.scientific.net/amr.421.513.

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Radial-axial ring rolling is an important component of advanced manufacturing technology, but it has characteristics of high nonlinear on geometry and physics, so the radial-axial ring rolling process becomes very complex. In addition, the feeding mode of core roller has enormous influence on the quality of the rolled ring as well as the stability of the process. In this paper, a 3D rigid-plastic FE model of radial-axial ring rolling process is established, then three kinds of feed speed design ((1)constant of feed speed; (2)constant of feed in one rotary; (3)variation of feed speed)are offered. The difference of outer radius growth velocity, distribution of effective strain and temperature, rolling force, size of ring are analysised for the three kinds of feed methods. And, an optimized feed method is proposed base on analytic results, the optimized feed method can improve the quality of formed ring, and decrease the requirement of ring rolling mill.

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Fedotov, V. A., P. V. Medvedev und S. Yu Solovykh. „Application of the information measuring system to improve the feeding mechanism of a roller machine“. Journal of Physics: Conference Series 1353 (November 2019): 012079. http://dx.doi.org/10.1088/1742-6596/1353/1/012079.

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Sivakumaran, N., und K. Thiyagesan. „Population, diurnal activity patterns and feeding ecology of the Indian Roller Coracias benghalensis (Linnaeus, 1758)“. Zoos' Print Journal 18, Nr. 5 (21.04.2003): 1091–95. http://dx.doi.org/10.11609/jott.zpj.18.5.1091-5.

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UMANO, Hiroshi, und Hiroshi YAMAURA. „FMF-07 CHARACTERISTICS OF PAPER FEEDING MECHANISM WITH A SHORT-RUBBER ROLLER AND A FLAT PLATE(Flexible Media Feeding and Handling Machines II,Technical Program of Oral Presentations)“. Proceedings of JSME-IIP/ASME-ISPS Joint Conference on Micromechatronics for Information and Precision Equipment : IIP/ISPS joint MIPE 2009 (2009): 143–44. http://dx.doi.org/10.1299/jsmemipe.2009.143.

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Luo, Ya Lan, und Chun Hua Zhao. „Design and Experimental Study of a Mower Conditioner Drive System“. Applied Mechanics and Materials 488-489 (Januar 2014): 1169–72. http://dx.doi.org/10.4028/www.scientific.net/amm.488-489.1169.

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According to the forage of mountain region harvesting requirements, a transmission of montanic mower conditioner was designed. The drive system was combined with automatic tension sprocket and double chain wheel of upper and lower crushers, firstly, to realize the automatic regulation and relative motion of two flattening roller, secondly, the power was passed to reel device and achieved forage feeding function; the off-center slider crank mechanism drove the horizontal header to realize the grass cutting function. Through the theoretical analysis and experimental study of the system working performance, applied comprehensive scoring method to obtain the optimal combination of working parameters: the cutting ration was3, the press roller circumferential speed was 4.5m/s, the reel speed ratio was 3. Measured with the optimal combination of operational parameters, the results showed that: the working stubble was 40mm, the recutting rate was 0.8%, the flattening ratio was 42.8% and the crushed grass loss rate was 2.3%, which could meet the demand of forage harvest operation.

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Stack, K. D., und R. C. Benson. „A Study of Friction Feed Paper Separation“. Journal of Engineering for Industry 115, Nr. 2 (01.05.1993): 236–41. http://dx.doi.org/10.1115/1.2901655.

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An understanding of the mechanics of paper separation is very important to the design of reliable photocopiers, and in this paper a model is developed to simulate friction feed paper separation. The importance of such system parameters as roller acceleration and compressive load is demonstrated. The variability of friction coefficients is shown to have a significant effect on feeding reliability. Experimental data are shown to be in good agreement with predicted results. Recommendations are made for the design of reliable friction feed paper separators.

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UMANO, Hiroshi, und Hiroshi YAMAURA. „Characteristics of Paper Feeding Mechanism with a Short Rubber-Roller and a Flat Plate(Mechanical Systems)“. Transactions of the Japan Society of Mechanical Engineers Series C 75, Nr. 755 (2009): 1965–73. http://dx.doi.org/10.1299/kikaic.75.1965.

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