A kind of anti-skid yarn guide device

Abstract

The invention discloses an anti-skid yarn guiding device. The anti-skid yarn guiding device includes a yarn guiding unit forming a slide fit with a yarn guiding slide rail, a yarn guiding limiting block arranged on the yarn guiding slide rail and for limiting an operation range of the yarn guiding unit, and a driving rod for driving the yarn guiding unit to run along the yarn guiding slide rail; a yarn guiding opening is formed in the top of the yarn guiding unit, and a left side wall and a right side wall of the yarn guiding opening are inclined; and the driving rod includes a pipe and an inserting member which is movably inserted into the tube, and a friction brake device is arranged on the bottom end of the pipe. According to the technical scheme, when the inserting member in the driving rod drives the yarn guiding unit to move horizontally, the inserting member is locked, and the fact that the driving rod slides out of the yarn guiding opening of the yarn guiding unit can be effectively prevented; and when the inserting member in the driving rod drives the yarn guiding unit to horizontally move to the yarn guiding limiting block, the inserting member is unlocked, and the inserting member lifts with respect to the pipe under the guide of the inclined side walls of the yarn guiding opening, and departs from the yarn guiding opening.

Description

technical field [0001] The invention relates to the technical field of weft knitting machines, in particular to a yarn guide. Background technique [0002] During the knitting process of the flat knitting machine, the transmission pin on the random head of the yarn guide moves back and forth in parallel. In order to prevent the yarn guide from slipping out of the guide rail and meet the requirements of weaving different fabric widths on the same machine, a limit device must be used to limit the yarn guide. The movement of the yarn guide can stop at the edge of the fabric and ensure that the yarn guide re-enters the working position when the yarn guide changes direction. [0003] The prior art generally adopts the following technical scheme: a groove is provided on the yarn guide for the transmission pin to extend into. groove, and then drives the yarn guide to translate along the guide rail. The two inner sides of the groove are inclined surfaces. When the yarn device need...

AI Technical Summary

Problems solved by technology

[0004] Although the above-mentioned technical solution can prevent the yarn guide from slipping out of the guide rail and meet the requirement of weaving different fabric widths on the same machine, the drive pin may accidentally slip out of the yarn guide during work because The groove on the yarn guide has two slopes. The slope of the slope, the weight of the yarn guide itself, and the speed of the drive pin may cause the drive pin to accidentally break away from the yarn guide during the process of driving the yarn guide. device, thereby affecting the normal operation of the yarn guide

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