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Outline of Carding Process Design

Author:Xinjinlong Machinery-Fabric Recycling Machine Manufacturer

Carding occupies a very important position in the entire spinning system engineering. During the spinning process of the spinning frame, the semi-finished roving or sliver is drafted, twisted, and wound into a spinning machine. The combed sliver and the needle-carding machine combine the sliver, the needle row is drafted to improve the sliver structure, and the roving is further spun into spun yarn on the ring spinning frame, which is the main spinning machine. Special equipment for the textile industry on the winder.

As the last process of spinning and the first process of weaving, winding is the link between the past and the next.“bridge”Therefore, it occupies an important position in the textile field. Carding machines are used to process cotton fibers and chemical fibers and belong to textile machinery. According to the spinning process, carding is an important process.

The front process of the carding machine is the opening and cleaning machine, and the latter process is the drawing frame (carding process) or the sliver coiler (combing process). In order to ensure the quality of carding, some measures are taken to reduce the doffer speed, quantitatively select light sliver, and increase the noil rate in the process. Although this method has quality advantages, it reduces the productivity of the carding equipment.

Therefore, not the direction. According to existing experience, the following factors should be considered when manufacturing and improving the design of the carding process: 1. Improve carding and cleaning performance by increasing the cylinder speed and speed series thorns, improve the quality of the cotton web, and thus further improve the card's performance Yield. 2. Appropriately, the doffer speed can be increased and the sliver quantity can be appropriately increased according to the conditions of the card clothing.

The weight of raw sliver is too heavy and the development of doffer speed is too slow, which is not conducive to students' sorting out impurities and transfer, so we should not adopt it. 3. In situations where mechanical conditions permit, the carding and cleaning components have a smaller gauge to facilitate carding and cleaning. 4. Pay attention to improve the transfer of fibers, especially for the transfer ability of fibers from thorns to Xinjinlong and from Jielin to Doffer, so as to reduce the return of flowers and reduce the generation of neps.

5. The carding machine has a considerable ability to eliminate short piles, and the increase in the short pile rate caused by fiber cutting is also the most serious. Cards have been found to cut fibers, mainly in the drum and board sections. Therefore, in addition to the requirement of making a well-structured lap on the cotton cleaning machine, in addition to creating conditions for the carding machine to reduce cutting fibers, the working surface length of the cotton board should also be reduced on the carding machine.

Image 6. According to the impurity content and fiber length in the cotton lap, formulating the post-carding process to give full play to its impurity removal effect is an important link to improve the quality of the cotton web and reduce the defects. Attention should be paid to the length of the auxiliary support surface, the length and angle of the cleaning surface, the angle of the dust removal knife, the length of the first and second cleaning area, the arc of the small drainage bottom and the distance from the selected outlet, the pressure of the small drainage bottom and the boundary drag-related factors, and the control and application of airflow behind the vehicle.

7. In order to improve product quality and save cotton, the control adopted in the distribution of noils is to reduce the new flower rate, break up the broken seed rate (except for low-grade cotton processing), and appropriately relax the noil rate of the car belly. 8. Use different metal clothings and rigid flat clothings, or use semi-rigid clothings to replace the old elastic clothings when spinning fine yarns. The shape of the zigzag geometric model of the metal card clothing can be designed according to our own needs, so we can better control the transfer rate of fiber cells and the effect of carding teaching.

9. In the strip into the compression part and the small bag increase, increase the capacity of the tampon barrel in the tampon, so as to improve labor productivity.


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