Method for improving conjugacy of looping cam mechanism of warp knitting machine

Abstract

The invention relates to a method for improving the conjugacy of looping cam mechanism of a warp knitting machine. The method includes: adding an eccentric bushing and a screw between a swinging rack and an eccentric shaft of an original looping cam mechanism of the warp knitting machine; adjusting the eccentric bushing and the eccentric core shaft to allow the adjusting range to be a circular surface; adjusting the eccentric bushing so as to actually change difference between distances from a shaft hole of the swinging rack to the centers of two rollers, and improving the conjugacy of the looping cam mechanism. The features and advantages of the method are that: 1, the method can compensate machining errors of non-cam parts; the method has a certain compensation role in errors affecting the conjugacy of cams; 2, the method is simple to operate, only one eccentric bushing is added, the swing rack is changed slightly, and increase in cost is less; 3, scraped parts due to match grinding of cams can be avoided; and 4, the match grinding process can be cancelled on the condition of ensuring the machining precision of the cams, and the total manufacturing cost can be reduced.

Description

technical field [0001] The invention relates to a method for improving the conjugation of a knitting cam mechanism of a warp knitting machine, and belongs to the technical field of manufacturing the knitting cam mechanism of a warp knitting machine. Background technique [0002] As we all know, the flange-type plane conjugate cam mechanism is generally that the flange-type plane conjugate cam is fixed on the main shaft, and can rotate freely with the main shaft supported by the frame; the pendulum looper is fixed on the shaft fixed on the frame and Can swing freely. The cam constrains the swing frame through two rollers, and the center of the outer circle of one of the rollers in contact with the inner contour surface of the cam is properly offset relative to the positioning hole on the swing frame through the eccentric mandrel, so that it is convenient to adjust its contact with the inner contour surface of the cam. the gap between [0003] The flange-type plane conjugate...

AI Technical Summary

Problems solved by technology

[0004] The manufacturing process of the existing warp knitting machine knitting mechanism is: strictly control the relevant parameters of each part, assemble and check the conjugation of the mechanism, and make a grinding mark next to the area near the inner surface of the cam; after grinding according to the mark, then Continue to check its conjugation, repeat grinding, and gradually meet the technical requirements. The disadvantages of this grinding process are: 1. High requirements for the operator's technology and experience; 2. The allowance for grinding is limited, which may cause the cam to be scrapped ; 3. The workload of matching grinding is large and takes a long time; 4. The effect of the conjugation of the cam mechanism is not ideal, because it is difficult to accurately grasp the manual operation, and the original conjugation of the cam after grinding may be destroyed

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