Safety switch structure for cup seaming machine needle bar protection cover

A technology of overlock sewing machine needle bar shield and safety switch, which is applied in the direction of sewing machine protection devices, sewing machine components, sewing equipment, etc., which can solve the problems of troublesome production of mercury safety switches, opening protection, unstable quality, etc., to avoid Personal injury, realization of safety protection, simple effects

Inactive Publication Date: 2014-05-07
JACK SEWING MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the mercury safety switch is troublesome to manufacture, the quality is unstable, the needle bar shield will open and the mercury will be stuck, the protection function cannot be activated under the action of gravity, and false alarms will occur due to vibration when the machine is running.

Method used

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  • Safety switch structure for cup seaming machine needle bar protection cover
  • Safety switch structure for cup seaming machine needle bar protection cover
  • Safety switch structure for cup seaming machine needle bar protection cover

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Embodiment Construction

[0024] 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.

[0025] see Figure 1 to Figure 4 . 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. The disclosed technical content must be within the scope covered. At the sa...

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PUM

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Abstract

The invention provides a safety switch structure for a cup seaming machine needle bar protection cover. The safety switch structure comprises a shell and a protection cover for protecting a thread guide bar and a needle bar, the protection cover is rotatably connected onto the shell through a protection cover wrench, a safety switch for prohibiting start of a cup seaming machine when the protection cover is opened is arranged between the protection cover wrench and the shell and comprises a sensor and a magnet, the sensor is provided with a Hall switch element and corresponds to the magnet, and the sensor and the magnet are arranged on opposite surfaces of the shell and the protection cover wrench respectively, or arranged on opposite surfaces of the protection cover wrench and the shell respectively. The Hall sensing safety switch is arranged between the protection cover wrench and the shell, so that a protection function is started when the needle bar protection cover is opened. Stability of the Hall safety switch cannot be affected by external environments, the cup seaming machine cannot be started even if in misoperation when maintainers perform threading and change needles, personal injury of the maintainers is avoided, and damage to the machine is prevented.

Description

technical field [0001] The invention relates to sewing equipment, in particular to a safety switch structure of a needle bar shield of an overlock sewing machine, which provides safety protection. Background technique [0002] Overlock sewing machine is one of the main sewing equipment of garment enterprises. It is used to trim and sew the edges of fabrics in garment processing, and wrap the edges of fabrics with specific stitches to prevent the yarns of the fabric from falling apart. The types of overlock sewing machines are divided into single thread, double thread, three thread, four thread, five thread and six thread according to the number of threads. Among them, the single-thread overlock sewing machine adopts a straight needle, two fork needles and a suture to form a single-thread overlock stitch, which is mainly used for sewing fur and cloth joints; the double-thread overlock sewing machine adopts a straight needle, a A looper, a fork needle and two sutures form a d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D05B83/00
Inventor 徐永明徐辉
Owner JACK SEWING MASCH CO LTD
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