Elastic yarn conveying device in multi-needle machine

Abstract

The invention provides an elastic yarn conveying device in a multi-needle machine, which belongs to the technical field of machinery and solves inconsistent tightness and other the technical problems during the conveying of a plurality of yarns existing in the prior multi-needle machine yarn clamper. The elastic yarn conveying device of the multi-needle machine comprises an installation base arranged on a stand, wherein a cylindrical drive wheel and a cylindrical pinch roller are fixed on the installation device axially, the axe of the drive wheel is parallel to the axe of the pinch roller, and the drive wheel can freely rotate around the axe of the drive wheel and the pinch roller can freely rotate around the axe of the pinch roller, the pinch roller is pressed on the drive wheel, the shaft of the drive wheel is radically connected with a crank, the crank is connected to a main shaft of the multi-needle machine through a drive mechanism, the rotation of the main shaft enables the crank to swing through the drive mechanism, and a unidirectional clutch mechanism enabling the drive wheel to unidirectionally rotate is arranged between the crank and the drive wheel. The elastic yarn conveying device has synchronization of yarn feeding amount and rotation speed of the machine, ensures consistent tightness of different speeds, and improves the working efficiency of the multi-needle machine because the yarn feeding amount can be adjusted according to different requirements.

Description

technical field [0001] The invention belongs to the technical field of machinery, and relates to an elastic thread conveying device, in particular to an elastic thread conveying device in a multi-needle machine. Background technique [0002] A multi-needle machine is a sewing machine that can sew several lines of stitches at the same time. It has multiple needles, and the corresponding needle threads are also conveyed at the same time. As we all know, the essential work of a multi-needle machine is to sew thread onto clothing, and the speed and quality of needle thread delivery have a great influence on its work efficiency. At present, the technology of needle thread conveying devices for single-needle machines is relatively mature in the market, and there are many corresponding thread-feeding devices, but there are basically no thread-feeding devices for multi-needle machines, so how to improve the quality of thread feeding for multi-needle machines This key technical topi...

AI Technical Summary

Problems solved by technology

[0003] The current multi-needle machines mainly use multiple sets of thread clamps scattered on the thread rack, one set of thread, there are the following problems: 1. The needle thread is inconsistent at different conveying speeds, and different needle threads at the same conveying speed 2. It is impossible to ensure that the amount of thread feeding is consistent with the working rhythm of the needle of the multi-needle machine. The needle and thread are often conveyed passively and are led away by the needle, causing great damage to the needle; these defects lead to The working efficiency of the multi-needle machine is not high, and the life of the needle is short

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