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Base thread monitoring device for sewing machine

A monitoring device and sewing machine technology, which is applied in the direction of bobbin winding, sewing machine components, sewing equipment, etc. in the sewing machine, can solve the problem that the bottom thread monitoring device cannot be popularized and applied, and achieve the effect of wide application range

Inactive Publication Date: 2013-10-02
JACK SEWING MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the bobbin thread monitoring device for double-needle sewing cannot be popularized and applied in other sewing machines

Method used

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  • Base thread monitoring device for sewing machine
  • Base thread monitoring device for sewing machine
  • Base thread monitoring device for sewing machine

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Embodiment Construction

[0022] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0023] It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. within the scope covered by the disclosed technical content. At the same time, terms such as "upper", "lo...

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Abstract

The invention provides a base thread monitoring device for a sewing machine. The sewing machine comprises a base plate, a bobbin case and a bobbin core which is filled with base thread in a winding mode, wherein the bobbin core is completely contained in the bobbin case, a thread winding column of the bobbin core is provided with a light reflecting surface, a light transmitting hole is formed in the side wall of the bobbin case, a photoelectric sensor is installed on the base plate, the photoelectric sensor is arranged on the outer side of the bobbin case, and is arranged opposite to the light transmitting hole, and the photoelectric sensor is composed of a receiver and a emitter. When the base thread on the thread winding column is large in amount, the base thread can shield the light reflecting surface. When the base thread is almost used out, the light reflecting surface is gradually exposed, the light reflecting surface can receive a signal which is given out by the emitter and enters through the light transmitting hole, and can reflect the signal to the receiver, the receiver gives out a signal after receiving the signal to have control over the sewing machine, and achieves the objective that the sewing machine cannot carry out sewing of the next time after finishing the current sewing, and therefore the phenomenon that the quality of a sewing product is influenced by lack of the base thread can be avoided.

Description

technical field [0001] The invention relates to a sewing machine, in particular to a bobbin thread monitoring device for the sewing machine. 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 material. Sewing machine can sew fabrics such as cotton, fiber crops, silk, wool, artificial fiber and products such as leather, plastics, paper, and the stitching that it sews out is not only neat and beautiful, flat firm, and sewing speed is fast, easy to use. [0003] There are many kinds of sewing machines, and sewing machines can be simply divided into household sewing machines and industrial sewing machines. The sewing machine can be a single-needle sewing machine and a double-needle sewing machine according to the number of needle heads. A double-needle sewing machine is a sewing machine with two needles that sew stitches side by si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D05B59/02
Inventor 卢胜龙李创管建平
Owner JACK SEWING MASCH CO LTD
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