Overlock sewing machine with automatic cutting function

Abstract

The invention provides an overlock sewing machine with the automatic cutting function and belongs to the technical field of swing machines which solves the technical problems of single-edge sewing machine. The overlock sewing machine comprises a housing and a needle rod; a stepping motor is transversely installed on the housing; the stepping motor is connected with a swing member; the swing memberis provided with an abutting arm and a chute arm which both extend outward; the chute arm is provided with an U-shaped opening which is in the length direction of the chute arm; the housing is provided with a vertical guide rod I and a guide rod II; the guide rod I is slidingly sleeved by a cutter seat; the guide rod II is slidingly sleeved by a cutter rack; the cutter seat is fixedly provided with a cutter which faces vertically downward; the cutter rack is fixedly provided with a material cutter which faces vertically downward; an outer end of the abutting arm abuts against the upper surface of the cutter seat, and the cutter rack is provided with a limiting pin, and the limiting pin is inserted into the opening of the chute arm. The overlock sewing machine in the present invention canrealize the trimming of the cloth, and the cutting action of the edging strip. The utility model has the advantages of compact structure and convenient operation.

Description

technical field [0001] The invention belongs to the technical field of sewing equipment, and relates to a hemming sewing machine, in particular to a hemming sewing machine with an automatic material cutting function. Background technique [0002] The hemming sewing machine is used to oversew the edges of flexible fabrics with a certain thickness, which not only makes such fabrics more beautiful, but also increases the strength of the fabrics. Existing hemming sewing machines have functions such as automatic backstitching, automatic thread clamping, automatic thread pulling, and automatic presser foot lifting. Due to the influence of hemming faucets and funnels, the structure is restricted and interfered. Ordinary hemming sewing machines do not have such functions. Set the automatic thread trimming and material cutting function. After the hemming sewing machine is used to complete the hemming sewing of the sewing material, it is necessary to manually cut the hemming and botto...

AI Technical Summary

Problems solved by technology

[0004] The cutting knife in the above patent document can only trim and cut the cloth, but cannot automatically cut the edge strip and the bottom surface line at the same time. The overall structure is complicated, the volume is large, and the function is single.

Images