Sewing machine presser foot and sewing machine

Abstract

The invention relates to the technical field of sewing machines, in particular to a sewing machine presser foot and a sewing machine including the sewing machine presser foot. The presser foot of the sewing machine includes a presser foot handle, the upper end of the presser foot handle is used to connect the pressure bar, and the lower end of the presser foot handle is connected with the left presser foot plate, the middle presser foot plate and the right presser foot plate arranged in sequence from left to right. The left lower surface of the presser foot plate and the right lower surface of the presser foot plate are located below the horizontal plane where the lower surface of the presser foot plate is located, the left side of the presser foot plate, the left side of the right presser foot plate and the A sewing channel for the passage of the sewing material folding boss is formed between the lower surfaces of the presser feet, and a needle drop hole for the passage of machine needles is arranged in the bottom plate of the presser foot. The left side of the presser foot plate can be used as a retaining edge on the left edge of the sewing material folding boss, and the right left side of the presser foot plate can be used as a retaining edge on the right edge of the sewing material folding boss, so that the folding boss can be realized Width control prevents twisting and deformation of the folding boss during sewing.

Description

technical field [0001] The invention relates to the technical field of sewing machines, in particular to a sewing machine presser foot and a sewing machine including the sewing machine presser foot. Background technique [0002] In the production process of garment hemming such as folding and sewing shirt hems, various trouser leg openings, sleeve cuffs, skirt lining hems, jeans pocket lips, etc., it is necessary to continuously fold the sewn material twice, and use flat Sewing machine, roller foot machine, interlock sewing machine and other sewing machines for curling operation. [0003] From the perspective of the sewing machine operator, the characteristics of this process are: after the sewing material is folded, its stitches are sewn at a certain distance along the edge of the sewing material, and the continuous width from the stitching to the sewing material is smaller than that of the folded Width, usually, the sewing material on the left side of the stitch is single...

AI Technical Summary

Problems solved by technology

The sewing process at the trouser leg is the last step after the trouser leg is sewn. It needs to be sewn in a very small circle. It is difficult to control the width of the trouser leg evenly, and the finished product is particularly easy to twist

[0004] This kind of garment hemming process can be regarded as sewing on a boss folded with sewing materials. It is not easy to control its width purely by hand. If the width control is not in place, stitches will appear in the finished garment. Bending, uneven stitches, wide and narrow stitches, twisted hems, inconsistent hem lengths (left and right trouser legs, sleeves), uneven pocket openings and other poor sewing problems, the quality of finished garments is difficult to control, and the corporate brand image is reduced

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