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Trimming mechanism of sewing machine

A thread trimming mechanism and sewing machine technology, which is applied to the thread cutting mechanism, sewing machine components, sewing machine control devices, etc. in the sewing machine to reduce noise and vibration and improve thread trimming stability

Pending Publication Date: 2020-04-21
ZHEJIANG MAQI SEWING MACHINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the above problems in the existing technology, and propose a thread trimming mechanism for sewing machines. The technical problem to be solved by the present invention is: how to improve the thread trimming stability by reducing the vibration and noise generated during thread trimming sex

Method used

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  • Trimming mechanism of sewing machine
  • Trimming mechanism of sewing machine
  • Trimming mechanism of sewing machine

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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] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 As shown, the thread trimming mechanism includes a casing, a motor 1, a thread trimming drive shaft 2 transmission assembly 3 and a thread trimming assembly 4, wherein the motor 1 is arranged on the casing, and the thread trimming drive shaft 2 is rotatably arranged on the casing. In the embodiment, the thread trimming mechanism further includes a thread trimming sleeve 5 fixed on the casing, and the thread trimming driving shaft 2 is plugged into the thread trimming sleeve 5 and the two are rotatably matched. Of course, the thread trimming drive shaft 2 can also be set as adopting other schemes to realize the rotation, such as directly offering mou...

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Abstract

The invention belongs to the technical field of sewing equipment, relates to a trimming mechanism of a sewing machine, and solves the problems of large noise and vibration when an existing trimming mechanism trims threads. The trimming mechanism comprises a cabinet, a motor, a trimming drive shaft, a transmission component and a trimming component; the motor is arranged on the cabinet; the trimming drive shaft is rotatably arranged on the cabinet; the transmission component is arranged between the motor and the trimming drive shaft; the motor drives the trimming drive shaft to rotate through the transmission component; and the trimming component is connected with the trimming drive shaft, and can carry out trimming under the drive of the trimming drive shaft. During trimming, the motor rotates and drives the trimming drive shaft to rotate through the transmission component, and finally drives the trimming component to perform trimming. Compared with a scheme of driving the trimming byan electromagnet, power is output through the motor to perform trimming, which can reduce the noise and vibration generated during trimming, thereby improving the trimming stability.

Description

technical field [0001] The invention belongs to the technical field of sewing equipment, and relates to a thread trimming mechanism of a sewing machine. Background technique [0002] At present, most of the sewing machines are equipped with an automatic thread trimming mechanism, which is used to cut off the bottom thread and the upper thread at the rotary hook after each sewing. [0003] A sewing machine thread trimming device disclosed in Chinese patent CN 106948103A includes a lower shaft, a thread trimming cam fixed on the lower shaft, a movable knife assembly that can swing around the lower shaft, a thread trimming drive shaft, an electromagnet, and a fixed thread trimmer. The thread trimmer driving crank on the drive shaft, the thread trimmer crank, and the drive assembly, the moving knife assembly includes at least one moving knife, the outer peripheral surface of the thread trimming cam has a thread trimming driving cam surface, and the thread trimming driving crank ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D05B65/00D05B69/10D05B69/32
CPCD05B65/00D05B69/10D05B69/32
Inventor 戴慧琪何清
Owner ZHEJIANG MAQI SEWING MACHINE
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