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Sewing machine with needle feed

A sewing machine and material feeding technology, which is applied in the direction of sewing machine components, cloth feeding mechanism, sewing equipment, etc.

Inactive Publication Date: 2008-08-20
BROTHER KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the conventional needle-feed sewing machine, there is a problem that the link mechanism which is released from the connection with the swing body must be connected to the newly installed link fixing plate in the down-feed state.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Sewing machine with needle feed
  • Sewing machine with needle feed
  • Sewing machine with needle feed

Examples

Experimental program
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Effect test

Embodiment Construction

[0023] Referring below to Figure 1 to image 3 An embodiment of the present invention will be described. Embodiments of the present invention are applicable to needle-fed lockstitch machines. As shown in FIG. 1 , the electronically controlled needle-feed lockstitch sewing machine M includes: a sewing machine base 10; a leg portion 11 extending upward from the right end portion of the sewing machine base 10; The bottom plate 10 is opposed to the sewing machine arm 12 extending leftward. On the sewing machine arm 12, an upper shaft 15 extending in the left-right direction is rotatably supported on the casing 5, and is provided with a needle bar up-and-down movement mechanism 20 and a thread take-up lever up and down movement mechanism.

[0024] The up-and-down movement mechanism of the thread take-up lever is the same as that of a normal sewing machine, so its description is omitted, and the needle bar up-down movement mechanism 20 is briefly described. The needle bar base 22 ...

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PUM

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Abstract

A sewing machine of the invention includes a first connection device for connecting or deconnecting asway one end part of the swing component to the connected portion formed by one end part of the link mechanism, and a second connection device for connecting or disconnecting the swinging center of the swing axle to the connected portion of the link mechanism. Thereby, when lower feeding, the original swing axle is used for fixing the link mechanism, without providing a new component for fixing the link mechanism to simplify the structure.

Description

technical field [0001] The present invention relates to a needle feed sewing machine which performs cloth feeding of processing cloth by the cooperative action of a sewing needle and a feed dog. Background technique [0002] In general, for example, when sewing thick processed fabrics such as denim, in order to reliably prevent poor feeding of the processed fabrics, a method is used to connect the sewing needle and the feed dog while the sewing needle is pierced into the processed fabric. Needle-feed sewing machine that oscillates synchronously to assist the feed dog in the feeding action. The above-mentioned needle feed sewing machine is provided with a switching device which can switch between a needle feeding state in which the processing cloth is fed by the cooperative action of the sewing needle and the feeding dog, and a lower feeding state in which the processing cloth is only fed by the feeding dog. The switching device switches according to the cloth thickness of t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D05B27/20D05B3/00D05B3/02
Inventor 岩越弘恭水谷智晴大利人美池田尚文
Owner BROTHER KOGYO KK