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Technique for grinding surface of cover of sewing machine shuttle peg

A sewing machine and bobbin technology, applied in the direction of surface polishing machine tools, grinders, manufacturing tools, etc., can solve the problems of uneven edge grinding and easy scrapping, and achieve the effect of high yield, less process, and even edge grinding

Active Publication Date: 2009-04-29
ZHEJIANG HUAYA MACHINE PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention mainly solves the technical problems of uneven edge grinding and easy scrapping in the prior art, and provides a bobbin case surface grinding process with uniform edge grinding and low scrap rate

Method used

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  • Technique for grinding surface of cover of sewing machine shuttle peg
  • Technique for grinding surface of cover of sewing machine shuttle peg

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: The inner diameters of two bobbin cases 2 are opposite, and then respectively placed on both sides of the rubber cylindrical case 1, so that the rubber cylindrical case is enveloped by the two bobbin cases, because the rubber cylindrical case is special, The shape and size of its design make the rubber cylindrical sleeve just can be embedded in the bobbin case that two inner diameters are opposite, and the edges of the two bobbin cases touch, and the rubber cylindrical sleeve is just firmly contained in the inside.

[0016] During processing, smooth gravel and water of different sizes are placed in the grinding bucket of the mobile finishing machine, and the machine is started. At this time, the smooth gravel and water flow along the grinding bucket. The cylindrical casing is impacted by gravel and water in the grinding bucket. After a certain period of time, the surface of the bobbin casing can reach the expected efficiency, and the edge at the inner diame...

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PUM

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Abstract

The invention discloses a surface sanding technique of peg or spindle sleeve of seamer, which comprises the following steps: setting the peg or spindle sleeve at two sides of rubber cylinder sleeve; placing the rubber cylinder sleeve and peg or spindle sleeve into the fluid photoetching machine to do burnishing disposal. The invention has a few procedures and high efficiency and product rate, which sands edge evenly with high product rate.

Description

technical field [0001] The invention relates to a grinding process, in particular to a surface grinding process for a bobbin case of a sewing machine. Background technique [0002] The bobbin case is used to guide the bottom thread from the bobbin to the sewing area stably. It is an important part of the sewing machine. Therefore, the quality of the bobbin case affects the sewing effect of the sewing machine. Originally, the manual operation was used to polish the shuttle. The bobbin case, after polishing, will adopt cumbersome processes such as polishing and re-finishing, which will easily cause the bobbin case to be scrapped during processing, and the efficiency of processing the bobbin case is not high. In order to solve the above problems, the inventor A new surface grinding process for the bobbin case is designed. Contents of the invention [0003] The invention mainly solves the technical problems of uneven edge grinding and easy scrapping in the prior art, and prov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B31/03
Inventor 徐凤南应江宝
Owner ZHEJIANG HUAYA MACHINE PARTS