Lubricating device for needle bar of sewing machine

A technology for lubricating devices and sewing machine needles, which is applied in the direction of lubricating/cooling devices, sewing machine components, sewing equipment, etc., and can solve problems such as uneven distribution of oil and complex structures of multiple oil storage tanks

Inactive Publication Date: 2012-02-01
吴江丰榖布艺整理厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of multiple oil storage tanks is relatively complex and does not completely solve the problem of uneven oil distribution

Method used

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  • Lubricating device for needle bar of sewing machine
  • Lubricating device for needle bar of sewing machine
  • Lubricating device for needle bar of sewing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present invention in a schematic manner, so it only shows the composition related to the present invention.

[0015] Such as figure 1 , figure 2 As shown, a sewing machine needle bar lubrication device includes a sewing machine head housing (1), a vertical cylindrical needle bar (2) connected to the lower end of the machine head housing (1) and a cylindrical needle bar sleeve (3 ). The needle bar (2) can move up and down relative to the machine head housing (1) and the needle bar cover (3). The needle bar cover (3) is connected to the lower end of the machine head housing (1) and is set on the outside of the needle bar (2). The lower end of the needle bar sleeve (3) has a closing portion greater than or equal to the diameter of the needle bar, an...

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PUM

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Abstract

The invention relates to a lubricating device for a needle bar of a sewing machine, which comprises a vertical cylindrical needle bar arranged on the lower end of a handpiece shell and a cylindrical needle bar sleeve; the needle bar sleeve is connected to the handpiece shell and is sleeved at the outer side of the needle bar; an oil storage groove is arranged on the inner wall of the needle bar sleeve, and an oil injection hole is arranged in the upper part of the side face of a cylinder of the needle bar sleeve. The lubricating device is characterized in that the oil storage groove on the inner wall of the needle bar sleeve is helical with the axial line of the cylinder as a middle axle. The helical oil storage groove is used for reducing the friction area of the needle bar and the needle bar sleeve so as to reduce heat. Meanwhile, the helical groove is used as a flow channel for liquid lubricating grease to ensure that the grease is uniformly distributed within 360 degrees in the vertical and sectional directions of the axial line of the needle bar sleeve. The helical oil storage groove has a simple structure, and the upper end of the helical oil storage groove is arranged at the oil injection hole of the needle bar sleeve to conveniently inject oil.

Description

technical field [0001] The invention relates to a lubricating device for a sewing machine, in particular to a lubricating device for the needle bar of the sewing machine. Background technique [0002] The lower end of the machine head housing of the sewing machine is provided with a vertical needle bar that can move up and down, and a needle bar cover is installed on the outside of the needle bar. When working, the needle bar drives the machine needle connected to its lower end to sew. Because the frequency of the needle bar's up and down movement is high, friction generates heat, and high-temperature sintering is prone to occur. The traditional sewing machine uses the method of injecting liquid grease into the needle bar cover to lubricate the needle bar to ensure its safe operation, but the liquid grease is easy to leak from the gap and pollute the sewing material. [0003] For this reason, people have invented the sewing machine needle bar lubricating device that uses so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D05B71/00
Inventor 陆名
Owner 吴江丰榖布艺整理厂
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