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Automatic thread cutting device for sewing

An automatic and sewing technology, applied in the direction of the thread cutting mechanism, sewing equipment, sewing machine components, etc. in the sewing machine, can solve the problems of difficulty in meeting the requirements of automatic thread trimming, large force required for cutting, and laborious cutting tools. The cutting force is large, the stability is guaranteed, and the design is reasonable.

Pending Publication Date: 2019-12-03
吴江市宝鑫机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Sewing products of sewing machines meet special sewing requirements, such as cup sleeves, children's shoes, etc., when bottom sewing requirements are required, it is difficult for existing sewing machines to meet the requirements of automatic thread trimming due to structural defects, and the thread materials required for special sewing are also special. The force required for cutting is relatively large, and it is more laborious to cut with general tools

Method used

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  • Automatic thread cutting device for sewing
  • Automatic thread cutting device for sewing
  • Automatic thread cutting device for sewing

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Embodiment Construction

[0022] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following The described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0023] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0024] In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "...

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PUM

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Abstract

The invention discloses an automatic thread cutting device for sewing. The device comprises a dust guard plate pressing plate, a needle plate, a fixed blade, a fixed blade installation base, a small mouth bucket-shaped installation base, a lower shaft, a lower shaft retainer ring, a rotating shuttle, a rotating shuttle housing, a rotary cutter rod, a rotary cutter, a movable cutter crank, a connection rod screw, a connection rod, an air cylinder installation plate, an air cylinder, an air cylinder fixing plate and an air cylinder baffle. The automatic thread cutting device is reasonable in design, through front and backward motion of the air cylinder, the power drives the rotary cutter rod to rotate via the movable cutter crank, crossing of the rotary cutter on the rotary cutter rod and the fixed blade is achieved, and an effect of a scissors structure function is achieved; a sewing thread is cut off, extension and retraction of the air cylinder are taken as a power source for drivingthe rotary cutter, the lever principle is adopted for transmission, the relative opening, closing and separation stability between a blade edge surface of the rotary cutter and a blade edge surface ofthe fixed blade can be ensured, and the cutting intensity is high.

Description

technical field [0001] The invention relates to a thread trimmer, in particular to an automatic thread trimmer for sewing, and belongs to the technical field of sewing machine applications. Background technique [0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material to interweave or sew one or more layers of sewing materials. The sewing machine can sew cotton, hemp, silk, wool , artificial fiber and other fabrics and leather, plastic, paper and other products, the stitches are neat and beautiful, flat and firm, with fast sewing speed and easy use. [0003] Sewing machine Sewing products meet special sewing requirements, such as cup sleeves, children's shoes, etc., when bottom sewing requirements are required, it is difficult for existing sewing machines to meet the automatic thread trimming requirements due to structural defects, and the thread materials required for special sewing are also special. Cut...

Claims

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Application Information

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IPC IPC(8): D05B65/00
CPCD05B65/00
Inventor 朱平
Owner 吴江市宝鑫机械有限公司