Sewing machine

A sewing machine and casing technology, applied in the field of sewing machines, can solve the problems of easy oil seepage, contamination of sewing materials, and oil mist at the head of the sewing machine, so as to increase the cross-sectional area, avoid oil seepage, and reduce the formation of oil mist. Effect

Pending Publication Date: 2017-05-31
JACK SEWING MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a sewing machine for solving the problems in the prior art that the head of the sewing machine is prone to oil leakage and oil mist, and pollutes the sewing material

Method used

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Embodiment Construction

[0036] 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.

[0037] see Figure 1 to Figure 3 . 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 ti...

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Abstract

The invention provides a sewing machine. The sewing machine comprises a machine case, and an upper shaft transversely arranged inside the machine case; the positioning position between the upper shaft and the machine case is provided with shaft sleeves in a sleeving mode, which are composed of a front shaft sleeve at the front end of the upper shaft, and a middle shaft sleeve in the middle of the upper shaft; an oil channel extending along the axis of the upper shaft is arranged inside the upper shaft; the upper shaft is provided with an oil inlet communicated with the oil channel, and an oil outlet hole communicating the oil channel with a gap between the upper shaft and the front shaft sleeve, and the outer wall of the upper shaft is provided with a lubricating oil slot; the position inside the oil channel, which corresponds to the oil outlet hole, is provided with an oil cotton; the front shaft sleeve is provided with an axially extended oil return channel, and the inner wall of the front shaft sleeve is provided with an oil return slot which is connected with the oil return channel through an oil return hole. The sewing machine avoids oil leakage.

Description

technical field [0001] The invention relates to the technical field of sewing machines, in particular to a sewing machine. Background technique [0002] In the sewing machine, the upper shaft is positioned in the casing through the shaft sleeve. In order to ensure the lubrication of the upper shaft when it rotates at high speed, a lubrication structure is usually provided in the shaft sleeve. For example, the existing Chinese patent ZL 201220640746.5 discloses a shaft sleeve of a sewing machine, which includes a sleeve body, an oil return groove is provided on the outer wall of the sleeve body, and an oil hole is provided on the end surface of the sleeve body along the axial direction of the sleeve body. The oil tanks are connected. It uses the upper shaft oil supply pipe to supply oil to the upper shaft hole, and the lubricating oil flows into the gap between the shaft sleeve and the upper shaft through the oil hole on the upper shaft during the high-speed rotation of the ...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): D05B71/00
CPCD05B71/00
Inventor应振华洪志敏钟亚强曹仙德刘强
OwnerJACK SEWING MASCH CO LTD