Needle fixing device for sewing machine

Abstract

The invention relates to the technical field of sewing machines, and discloses a needle fixing device for a sewing machine. The needle fixing device for the sewing machine comprises an equipment mainbody, the lower end of the equipment main body is movably connected with a connecting pipe, the left end of the connecting pipe is fixedly connected with an air bag column extending to the equipment main body, an air storage bag is arranged in an inner cavity of the upper part of the connecting pipe, air guide grooves are formed in the left wall and the right wall of the connecting pipe, a partition plate is fixedly installed in an inner cavity in the middle of the connecting pipe, and an elastic I-shaped rod is movably connected to the middle of the partition plate. According to the needle fixing device for the sewing machine, an elastic I-shaped rod is extruded through the needle, so that a metal bead makes contact with a metal sheet for reminding, an adjusting screw rod is rotated in amatching mode to enable a wedge block to extrude a securing plate to fix the needle, when the elastic I-shaped rod moves upwards in a matching mode, the air storage bag is deflated, therefore, the problem of needle wire jumping in the later period is avoided, the stability of needle installation is improved, and the accuracy of needle installation is improved.

Description

technical field [0001] The invention relates to the technical field of sewing machines, in particular to a needle fixing device for sewing machines. Background technique [0002] Machine needles, also known as sewing needles and car needles, are important components of sewing machines. There are hundreds of types of machine needles in China. In the sewing process, in order to achieve the ideal cooperation between machine needles, sewing materials and sutures, It is necessary to choose the appropriate machine needle. The working nature of the machine determines the selection of the machine needle. Different types of machines should be equipped with different types of machine needles. [0003] At present, during the installation process of general machine needles, because there is no structure that can conveniently remind users to install them in place, it often happens that users do not install the machine needles in place, and the needles are used before they are installed i...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a needle fixing device for sewing machines, which avoids the occurrence of needle skipping problems in the later stage, increases the stability of needle installation, and improves the accuracy of needle installation. Degree and other advantages, to solve the above problems

Images