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Sewing machine and sewing machine control method

A technology of sewing machine and sewing table, which is applied in the field of sewing machines, and can solve problems such as thread trimming, loss, and cutting off of the front end of the triangle fabric, which cannot be used for normal sewing of triangle fabrics.

Active Publication Date: 2022-05-17
JACK SEWING MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thread trimming method of existing sewing machines is generally machete thread trimming or side suction knife thread trimming. Fabrics with a normal front end flush shape can be sewn and threaded normally, but since the sensor position distribution is generally linear, when the fabric is triangular For fabrics, it is easy to cut off the front end of the triangle by mistake when trimming the thread before, and it is easy to cut off the rear end of the triangle when trimming the thread backward
This problem will lead to the scrapping of the user's fabric, resulting in losses, and the normal sewing and thread trimming of the triangle fabric cannot be performed.

Method used

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  • Sewing machine and sewing machine control method
  • Sewing machine and sewing machine control method
  • Sewing machine and sewing machine control method

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Embodiment Construction

[0059] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0060] In the prior art, when the sewing machine sews, a front braid will be formed at the front end of the cloth to be sewn, and a rear braid will be formed at the rear end of the cloth that has been sewn. This requires trimming of the front braids at the start of the sewing machine and trimming of the rear braids at the end of sewing.

[0061] Generally, the end of the cloth to be trimmed is in a flush shape, so when trimming, the time of trimming is judged by a sensor arranged on the sewing table along the advancing direction of the cloth. In the case of front thread t...

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Abstract

The present application relates to a sewing machine and a sewing machine control method. Through the position signals collected by the first sensor, the second sensor, the third sensor, the fourth sensor and the fifth sensor in the sewing area along the direction of cloth travel, the type of the cloth to be cut is judged by Different types of fabrics, send thread trimming commands to avoid cutting off the tip of the fabric when trimming the fabric with triangular ends, causing unnecessary waste.

Description

technical field [0001] The present application relates to the technical field of sewing machines, in particular to a sewing machine and a sewing machine control method. Background technique [0002] At present, when the sewing machine is sewing, a front braid will be formed at the front end of the cloth to be sewn, and a rear braid will be formed at the rear end of the finished cloth. This requires trimming of the front braids at the start of the sewing machine and trimming of the rear braids at the end of sewing. [0003] In the prior art, the automatic thread trimming sewing machine generally uses a photoelectric cross-beam sensor for induction. When the fabric passes through the sensor, it is judged and controlled by the electric control. Thread trimming function now. The thread trimming method of existing sewing machines is generally machete thread trimming or side suction knife thread trimming. Fabrics with a normal front end flush shape can be sewn and threaded norma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D05B65/00D05B69/00
CPCD05B65/00D05B69/00
Inventor 金琳徐永明
Owner JACK SEWING MASCH CO LTD