Circular rotating apparatus of flat seamer

Abstract

The invention relates to a flat bed sewing machine rounding device which is suitable for being used together with various single needle flat bed sewing machines. The invention aims at solving the technical problems of the existing technique that the labor intensity is large, the working efficiency is low and the production cost is high. The invention adopts the following technical proposal in order to solve the technical problems: the flat bed sewing machine rounding device comprises a presser foot body, a needle plate body and a machine tooth bracket, wherein, the device also comprises a tooth surface turntable, a tooth surface ratchet wheel turntable, a vertical type wheel-pulling machine tooth, and two bearings; the tooth surface turntable is installed on the presser foot body by the first bearing, the tooth surface ratchet wheel turntable is installed on the needle plate body by the second bearing, the lower part of the vertical type wheel-pulling machine tooth is connected with the machine tooth bracket by screw, and the machine tooth arranged at the upper part of the vertical type wheel-pulling machine tooth is contacted with the ratchet wheel of the tooth surface ratchet wheel turntable so as to push the tooth surface ratchet wheel turntable to rotate. The flat bed sewing machine rounding device has the advantages of simple operation, flat sewing, beautiful and uniform stitch, and good roundness, greatly improving work efficiency, being time-saving and labor-saving and meeting the requirement of large-scale production, and the like.

Description

technical field [0001] The invention relates to a rounding device for a lockstitch sewing machine, which is suitable for matching use with various single-needle locket sewing machines. Background technique [0002] In the processing of clothing, shoes, hats, etc., there is a need for circular sewing, such as the above circular Velcro, nailing circular signs, etc. In the past, this kind of work had high technical requirements for operators, and it was difficult to ensure the roundness. The circle stitches were of different sizes and the appearance was poor. If the fabric is thin or soft, during processing, because the machine teeth are straight feeding, it is easy to cause the fabric to be discounted when turning round, so the presser foot must be raised and lowered every stitch to adjust the position of the next stitch , In this way, the labor intensity of the operator is very large, resulting in low labor efficiency and high manufacturing costs. Contents of the invention...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problems of high labor intensity, low work efficiency and high production cost in the prior art, and provide a time-saving, labor-saving, high-efficiency, good sewing quality and can meet the needs of mass production. Lockstitch sewing machine circular device

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