Sewing machine head used for processing shirt sleeve caps

Abstract

The invention discloses a sewing machine head used for processing shirt sleeve caps, and relates to the technical field of sewing machine equipment. The sewing machine head comprises a bottom plate and a machine head body, a left limiting plate for internal cuff edges of sleeve cap front faces is fixed to the lower portion of a presser foot upwarped part below the machine head body, a left limiting plate for internal cuff edges of sleeve cap back faces is fixed to a needle plate of the bottom plate, the right side edge of the left limiting plate for the internal cuff edges of the sleeve cap front faces and the right side edge of the left limiting plate for the internal cuff edges of the sleeve cap back faces are aligned, and the aligned face is arranged on the left side of a needle passing hole in a presser foot. Rough selvedges at the lower ends of shirt sleeve pieces are clamped between the front faces and the back faces of the sleeve caps in advance, the internal cuff edges of the sleeve cap front faces and the sleeve cap back faces abut against the left limiting plate for the internal cuff edges of the sleeve cap front faces and the left limiting plate for the internal cuff edges of the sleeve cap back faces respectively, one-time sewing forming is performed through pressing of the presser foot, size uniformity of seal allowances on the sleeve cap front faces and the sleeve cap back faces is guaranteed, and working efficiency is improved. The sewing machine head has the advantages of being simple in structure, accurate in positioning and convenient to operate, can guarantee the processing quality of the sleeve caps and is suitable for production in batches.

Description

technical field [0001] The invention relates to the technical field of sewing machine equipment. Background technique [0002] There are cuffs at the lower end of the sleeves of the shirt. According to the requirements of the manufacturing process, the sleeve forks at the lower end of the sleeves need to be sewn in advance, the front and back of the sleeves should be buttoned and ironed in advance, and then the raw edges of the lower ends of the sleeves should be clipped to the sleeves. One-shot stitching between front and back. According to the technical requirements, there is a 0.1cm open seam on the front of the cuff, and the back seam is controlled at 0.1-0.15cm. In the past, when there was no special equipment for processing, the inner edge of the cuff was buttoned and ironed in advance, and the raw edge at the lower end of the sleeve was sandwiched between the front and back of the cuff. This processing method not only has low work efficiency, but also has uneven pro...

AI Technical Summary

Problems solved by technology

In the past, when there was no special equipment for processing, the inner edge of the cuff was buttoned and ironed in advance, and the raw edge at the lower end of the sleeve was sandwiched between the front and back of the cuff. This processing method is not only low in efficiency, but also uneven in processing quality.

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