Adjustable stitch machine head

Abstract

The invention discloses an adjustable stitch machine head. The adjustable stitch machine head is characterized in that a transverse rod, a vertical rod, a hinge pin, a tension spring and a fixing sleeve are included, the rod end of the transverse rod is connected with a stitch support, the lower rod end of the vertical rod is provided with a first adjusting hole and a first locking screw which allow the transverse rod to movably penetrate through and conduct locking, the big head end of the hinge pin is provided with a second adjusting hole and a second locking screw which allow the upper rod end of the vertical rod to movably penetrate through and conduct locking, the fixing sleeve is provided with a sleeve hole to allow the hinge pin to be rotationally arranged in the sleeve hole, the back of the fixing sleeve is connected with a bridging piece, the front of the fixing sleeve is connected with a connection base, a tension spring hooking plate is arranged at the upper end of the bridging piece, a tension spring pin is arranged in the middle of the vertical rod, the tension spring is arranged on the outer side of the big head end of the hinge pin, the two ends of the tension spring are hooked by the tension spring hooking plate and the tension spring pin respectively, and a positioning bolt opposite to the vertical rod is arranged at the lower end of the bridging piece. Accordingly, it can be guaranteed that stitch lines of assembled upper pieces are neat and attractive, it can also be guaranteed that the stitch lines of shoe eyelets are integrally standard and unified, the work efficiency is improved, and the product quality is guaranteed.

Description

technical field [0001] The invention relates to the technical field of shoemaking, in particular to an adjustable sewing machine head for ensuring neat sewing. Background technique [0002] We have been constantly researching and practicing the production process of shoes. Different styles of shoes often encounter many technical problems. In the process of shoe sewing, whether the stitching of the upper piece is neat and beautiful is often an intuitive reflection of the technical level of a sewing teacher. During the splicing process of the upper, the two uppers are divided into upper and lower layers. The upper layer is pressed against the lower layer and stitched up and down through the sewing thread. The upper piece falls to the lower layer upper piece) and other situations are not allowed for military shoes with strict process requirements. In addition, some military shoes need to be equipped with plastic eyelets, and the plastic eyelets need to be stitched around the ...

AI Technical Summary

Problems solved by technology

During the splicing process of the upper, the two uppers are divided into upper and lower layers. The upper layer is pressed against the lower layer and stitched up and down through the sewing thread. The upper layer falls to the lower upper layer) and other situations are not allowed for military shoes with strict process requirements

In addition, some military shoes need to be equipped with plastic eyelets, and the plastic eyelets need to be stitched around the circumference with sewing thread, and it is obviously more difficult to ensure the uniformity of the overall standard of the stitches.

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