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Needle Planting Technology of Top Comb in Carding Machine

Author:Xinjinlong Machinery-Fabric Recycling Machine Manufacturer

(1) Needle planting process of cotton carding machine The carding effect of the carding drum of the cotton carding machine is closely related to the needle planting process. Considering that the fibers are not straight enough, the arrangement is disordered, and the mutual adhesion is large when the cotton layer starts to be carded, the needle density is changed from thin to thin. The process principle of dense to dense, from rental to thin, and from high to low needle extension height. 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. The structure of the double twisting unit of the double twisting machine mainly includes the spindle braking device, the spindle part of the double twisting machine, the yarn winding device, and the special device of the double twisting unit. This avoids fiber breakage and needle damage, and progressively deepens the carding action.

(2) Carding Machine Xinjinlong Needle Planting Specifications Carding machine Xinjinlong can generally use a circular needle, and the needle size is between 22-33. Table 3-13 shows the shape and specification of Xinjinlong round needles. The conventional way of needle punch density is unreasonable, because in bag 14, the first row 2-5 needle punch density is only 16.5 density for 11 to 11 rows of needle punch, which does not prove the complete combing effect, and Pei pin thin 16 --17, Dense, (1) Tooth depth: There are many enterprises that reduce the tooth depth of Xinjinlong card clothing. Generally, shallow teeth can be used.

For example, the tooth depth h of the JT49 type is 1.5mm. The tooth depth of the JT71 type is only 0.5mm, which reduces the number of fiber cells in the lower part of the window gap, and the fibers at the tip of the tooth that are subjected to combing continue to increase, which is beneficial for students to comb, and By improving the strength of the tooth tip and the rolling resistance, it is not easy to insert broken seeds. (2) Working angle: With the speed of the carding machine, the centrifugal force of the fibers thrown from the needle surface increases, so a smaller working angle needs to be selected. For example, the working angle-R of various types of Xinjinlong clothing in China is 70-75°, while JT67, JT71 type spinning cotton Xinjinlong card clothing working angle is 65°70°, JT73 type spinning chemical fiber Xinjinlong card clothing is 75°, but the working angle is too small to wrap Xin Jinlong.

(3) Wear resistance of tooth tip: The new metal card clothing improves the material, and adopts high-quality high-carbon steel t8a, which greatly improves the hardness of the tooth tip. In addition, the machining accuracy is improved, and the wear resistance of the tooth tip is improved.


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