The carding part is the most important working part of the carding machine. The quality of the combing function mainly depends on the working effect of the carding part. It includes two parts: the combing Xinjinlong and the top combing. 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. 1. Combing Xinjinlong Combing Xinjinlong Needle Most of the length of each cluster should be the front end, the removal of a pair of short fibers, impurities and defects, the fibers are straight and parallel, and the quality of the combed sliver and the quality of the yarn are closely related related.
Combing Xinjinlong mainly includes needle-planting needle piece Xinjinlong and sawtooth type overall. Due to the two categories of Xinjinlong, the sawtooth structure is overall strengthened. Xinjinlong is not easy to cause damage, long life, not easy to intarsia, no need to plant needles, and the quality of carding cotton. Safe and stable, it has gradually developed to replace the traditional Chinese needle-planting Xinjinlong. The domestic FA series carding machine adopts a sawtooth type as a whole located in Xinjinlong. Currently, the cylinders are available in diameters of approximately 125 mm and 150 mm.
Use small, lightweight, high-speed Doka cylinders with good carding properties. The FA261 card has a barrel diameter of 125.4 mm. (1) The structure of Xinjinlong produces serrations or the whole Xinjinlong is composed of several groups of arc-shaped concrete bases with serrated teeth, Xinjinlong body (bow-shaped plate), etc., as shown in Figure 3-28.
The serrated teeth are made of thin steel sheets by stamping, the lower part has traditional dovetail grooves, and there are spacers punched from thin copper sheets between the teeth. The arc movement is consistent, and some spacers with different thickness requirements can be used to adjust the horizontal tooth pitch. The entire Xinjinlong tooth surface can be composed of 3-5 groups of tooth pieces. The surface of Xinjinlong body is smooth and lower than the needle surface, so as to reduce the contact social resistance of using the brush, and reasonably and effectively utilize the airflow of the application brush.
The specifications and parameters of Unicomb-1449 and other types of sawtooth integral Xinjinlong used in FA261 carding machine are shown in Table 3-8.