An interlock sewing machine with corner folding function

Abstract

The invention discloses a retractable movable needle plate and an interlock sewing machine with the function of overlapping angles of the needle plate. The retractable movable needle plate includes a needle plate body (1), and the needle plate body (1) is provided with The installation hole (11), the installation groove (12), and the walking groove (13), are characterized in that they include a retractable and movable support column (2), and two protrusions are provided at one end of the support column (2) (21), and the other end is provided with a mounting hole (22), the wire support column (2) can telescopically move in the installation groove, and the wire support column is L-shaped. The thread support column (2) is connected with the pneumatic drive mechanism, and stretches and moves relative to the needle plate body (1). When ordinary straight line sewing is performed, the solenoid valve (37) is in a normally open state, the cylinder is inflated and stretched, and the thread is supported. The column (3) is stretched out to play the role of supporting the thread; when stitching corners, touch the contact switch, the solenoid valve (37) is closed, the air circuit is closed, the cylinder is retracted, and the thread supporting column (2) is retracted, Complete the overlapping sewing; after the overlapping is completed, release the contact switch, open the air circuit, and continue ordinary sewing.

Description

technical field [0001] The present invention relates to an interlock sewing machine, and further relates to an interlock sewing machine with a folded corner function, which is used in the folded corner sewing process of men's underwear, women's underwear, body-shaping products, sportswear and other related knitted garments. Background technique [0002] Ordinary interlock sewing machine needle plate has a "thread support column" (such as figure 1 As shown), the one-piece fixed structure, the thread is wound on the two thread support columns of the needle plate, when the sewing machine is working, the corresponding stitches are stretched out according to the winding form, and the needle plate of the existing stretch sewing machine is only It can complete straight line or micro-arc sewing. When performing straight line and micro-arc sewing, the stitches are beautiful and the product is flat and beautiful. However, when the interlock sewing machine performs corner folding opera...

AI Technical Summary

Problems solved by technology

[0002] Ordinary interlock sewing machine needle plate has a "thread support column" (such as figure 1 As shown), the one-piece fixed structure, the thread is wound on the two thread support columns of the needle plate, when the sewing machine is working, the corresponding stitches are stretched out according to the winding form, and the needle plate of the existing stretch sewing machine is only It can complete straight line or micro-arc sewing. When performing straight line and micro-arc sewing, the stitches are beautiful and the product is flat and beautiful. However, when the interlock sewing machine performs corner folding operation, the product to be sewn will be moved or rotated. Correspondingly, the thread wound on the thread support column will also pull out some threads as the product moves, and then there will be extra threads on the stitches at the folded corners when the seam is performed, causing the stitches to be messy and disorderly , the product is uneven and beautiful, and cannot meet the process requirements

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