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Pattern sewing machine thread trimming device

A pattern machine and thread trimming technology, which is applied to the thread cutting mechanism, cloth pressing mechanism, and sewing machine components in the sewing machine. It can solve the problems of insufficient use of the presser foot motor, difficult control of the electromagnet stroke, and many assembly processes. Achieve the effect of convenient installation and adjustment, stable structure and flexible movement

Active Publication Date: 2019-07-05
BULLMER ELECTROMECHANICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some problems in this solution: 1. The electromagnet is driven, and the stability is poor; 2. The motor for lifting the presser foot is not fully utilized, and only the action of lifting the presser foot is performed; There are many processes; 4. The stroke of the electromagnet is not easy to control, and the safety is poor

Method used

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  • Pattern sewing machine thread trimming device
  • Pattern sewing machine thread trimming device
  • Pattern sewing machine thread trimming device

Examples

Experimental program
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Embodiment Construction

[0030] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0031] like figure 1 As shown, the thread trimming device of the pattern machine includes a presser foot lifting drive assembly and a thread trimming assembly.

[0032] Specifically, such as figure 2 As shown, the presser foot lifting drive assembly includes a stepping motor (not shown in the figure), a presser foot cam 31 drivingly connected with the stepping motor, and a presser foot link 32 connected with the presser foot cam 31 . In this embodiment, the presser foot connecting rod 32 includes a first connecting rod 34 and a second connecting rod 35 hinged to the first connecting rod 34, figure 2 Among them, the first connecting rod 34 swings with its middle part as the rotation center, and the lower end of the firs...

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Abstract

The invention discloses a pattern sewing machine thread trimming device, and belongs to the technical field of pattern sewing machines. The pattern sewing machine thread trimming device solves the problem that the structure of an original pattern sewing machine is unstable. The pattern sewing machine thread trimming device comprises a foot lifting driving assembly and a thread trimming assembly, and also comprises a thread trimming cam and a thread trimming roller in clutch connection with the thread trimming cam, the thread trimming roller is connected with the thread trimming assembly and drives the thread trimming assembly to move, and a connecting assembly driving the thread trimming roller and the thread trimming cam to engage and disengage is arranged between the foot lifting drivingassembly and the thread trimming roller.

Description

technical field [0001] The invention belongs to the technical field of pattern machines and relates to a thread trimmer for pattern machines. Background technique [0002] Existing sewing machine thread trimming device is as open publication number as CN102877230A, and the name is called the Chinese patent of sewing machine automatic thread trimming device, and this technical scheme comprises the moving knife that can cooperate mutually to cut off thread, fixed knife, connecting rod and thread trimming electromagnet, fixed The knife is fixed on the sewing machine base, one end of the moving knife and the connecting rod is fixed on the thread trimmer holder, the thread cutter holder is set on the lower shaft, the other end of the connecting rod is hinged with one end of the transmission rod, and the other end of the transmission rod is connected with the The moving iron of the thread-cutting electromagnet is connected, and the thread-cutting cam is installed on the tooth lift...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D05B65/02D05B29/02
CPCD05B29/02D05B65/02
Inventor 刘明耀王俊跃刘翔
Owner BULLMER ELECTROMECHANICAL TECH