Finish machining mechanism and method for feed plates of rotor spinning machinery

Abstract

The invention relates to a finish machining mechanism for feed plates of rotor spinning machinery. The mechanism comprises a middle shaft and a large shaft parallel to each other. The large shaft is driven by a motor. A wide abrasive belt is wound between the middle shaft and the large shaft. A small shaft parallel to the middle shaft is arranged beside the middle shaft. The distance between the axis of the small shaft and the axis of the middle shaft is smaller than the length of a feed plate. The radius of the small shaft is smaller than that of a shaft hole. The sum of the radius of the middle shaft and the thickness of the abrasive belt is equal to the radius of an operating arc segment of the feed plate. The invention further discloses a machining method of the finish machining mechanism for feed plates of rotor spinning machinery. The method includes the steps of a, sleeving the shaft hole of the feed plate on the small shaft, and starting the motor; b, pushing the other end of the feed plate onto the abrasive belt on the middle shaft with hands, allowing the feed plate to axially reciprocate along the small shaft, and allowing the abrasive belt to abrade the feed plate to form the operating arc segment; and c, releasing the abraded feed plate, and abrading the next feed plate.

Description

technical field [0001] The invention relates to a processing device for a cotton feeding board of a rotor spinning machine, in particular to a finishing mechanism and a processing method for a cotton feeding board of a rotor spinning machine. Background technique: [0002] Such as figure 1 As shown, when the raw material (sliver 4) of the rotor spinning machine is fed into the carding cavity, the working arc section of the cotton board 3 ( figure 2 1a) Press the sliver 4 to make it adhere to the surface of the feed roller 2 (the circumference of the feed roller has long strip-shaped helical teeth to increase the friction with the fiber), through the rotation of the feed roller 2 and the feeding Cotton boards work together to drive cotton sliver 4 to be fed into the carding cavity, thereby realizing the automatic supply of raw materials (cotton sliver). [0003] The adjustment of the raw material supply is realized by the rotation speed of the feeding roller, so that it ca...

AI Technical Summary

Problems solved by technology

However, the grinding wheel will be continuously worn out during the grinding process, and the shape and size of the grinding wheel will change. The size and shape of the circular arc section of the cotton feeding plate to be ground will change accordingly, and the machining accuracy is difficult to guarantee. In order to achieve machining accuracy in The grinding wheel needs to be trimmed more times during the processing, and the downtime is more, especially the existence of grinding texture greatly increases the workload of the subsequent polishing process

Therefore, the precision of the product processed by the existing processing method is low, and the production efficiency is low.

[0005] In addition, because the grinding texture on the surface of the circular arc section of the feeding board is consistent with the rotation direction of the grinding wheel, it is perpendicular to the circular motion direction of the sliver feeding into the carding chamber, which is prone to slipping and blocking, which is not conducive to the movement of sliver fibers. As a result, the sliver fiber is fed unevenly and affects the yarn quality

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