Thread passing structure in a computerized embroidery machine

Abstract

The invention relates to a thread passing structure in a computerized embroidery machine, which includes a mounting plate. It is a torsion spring, the threading end of which is extended outwards and wound into a threading hole, and then recovered to the tensioning spring body; the tensioning spring mounting seat is provided with a tensioning spring mounting surface and a limit gap, and the center hole of the tensioning spring is inserted into the On the installation surface of the thread tension spring, the positioning foot is inserted into the limit gap; each thread take-up lever is correspondingly installed with a thread tension spring, and the two thread channel branching posts are symmetrically located on both sides of the threading hole of the thread tension spring, and separated from each other. a certain distance. The beneficial effect of the present invention is: adopting thread tension cushioning and absorbing structure, which solves the technical problem of thread breakage due to sharp change of thread tension in the embroidery process, and the thread passing structure is compact and reasonable, which is very convenient for installation and adjustment.

Description

technical field [0001] The invention relates to the field of embroidery machines, in particular to a thread passing structure in a computerized embroidery machine. Background technique [0002] The thread path of most embroidery machines is curved, and the stitches are continuously formed as the needle moves up and down during embroidery. The thread take-up lever moves up and down continuously to pull the embroidery thread. Due to the large contact resistance of the thread path at the bending part, the thread tension changes sharply, and the embroidery thread is easily cut off. There are also individual intermediate thread passing mechanisms that use springs, but the structure is complicated. , the installation and maintenance are all inconvenient, and the processing cost is also higher simultaneously, and it is impossible to avoid the danger of being clamped or roughened by the spring groove when the wire is pulled down through the middle wire. Contents of the invention ...

AI Technical Summary

Problems solved by technology

The thread take-up lever moves up and down continuously to pull the embroidery thread. Due to the large contact resistance of the thread path at the bending part, the thread tension changes sharply, and the embroidery thread is easily cut off. There are also individual intermediate thread passing mechanisms that use springs, but the structure is complicated. , the installation and maintenance are not very convenient, and the processing cost is also high, and it cannot avoid the danger of being clamped or roughened by the spring groove when the line is pulled down through the middle line.

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