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Feeding device of sewing machine

A technology of feeding device and sewing machine, which is applied in the direction of control device for sewing machine, sewing machine components, sewing equipment, etc., can solve the problem of inability to properly feed the cloth, and achieve the effect of reducing vibration or noise.

Active Publication Date: 2013-03-06
JUKI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Here, if the upward moving force is applied with a large displacement on the downstream side of the feeding direction by using the feed teeth, the elastically pressed and supported material presser foot will spring up, and the material cannot be fed properly. Shortcomings

Method used

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  • Feeding device of sewing machine
  • Feeding device of sewing machine
  • Feeding device of sewing machine

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Next, an embodiment of the sewing machine feed device according to the present invention will be described in detail.

[0026]

[0027] Such as Figure 1 to Figure 4 As shown, the sewing machine 10 has: an unillustrated sewing machine motor; an unillustrated up and down movement mechanism, which moves the sewing needle up and down; At the same time, it forms flat seam stitches together with the aforementioned sewing needles; the feeding device 40, which feeds the cloth; the gear mechanism 60, which transmits the rotational driving force from the upper and lower feed shafts 43 of the feeding device 40 to the kettle mechanism 30; the cloth A presser foot 19 which presses the cloth above the needle plate 11 from above; and a main body frame 20 which supports each of the above structures.

[0028] (main frame)

[0029] The main body frame 20 has: a base portion 21 having the needle plate 11; an arm portion (not shown) facing above the base portion 21 and having the afor...

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Abstract

The invention relates to a feeding device of a sewing machine, which can reduce generation of vibration or noise. The feeding device of the sewing machine is provided with: a feeding station which maintains a feeding gear causing a sewn object arranged on a needle plate to feed; a horizontal feeding shaft which imposes a driving force of swinging in the feeding direction on the feeding station; an up and down feeding shaft which is arranged opposite to the horizontal feeding shaft on an upstream side in the transfer direction of the sewn object and imposes the driving force of swinging in the up and down direction on the feeding station; a feeding regulating lever which moves when changing feeding amount and the feeding direction; a feeding transformation shaft which is connected with the feeding regulating lever and rotates around the shaft when moving the feeding regulating lever; and a feeding regulating connecting rod, which is connected with the feeding transformation shaft, rotates together with the feeding transformation shaft, changes the feeding amount and the feeding direction corresponding to a rotating angle thereof, arranges a balancer in the feeding device of the sewing machine on the feeding transformation shaft and imposes load on a rotating direction of the feeding transformation shaft around an axes.

Description

technical field [0001] The present invention relates to a feeding device of a sewing machine which conveys cloth by the movement of feeding teeth. Background technique [0002] In a normal sewing machine, the feed teeth arranged under the needle plate move in the feeding direction of the material from The needle plate protrudes, and when it moves in the opposite direction, it retracts to the elliptical feed movement under the needle plate, so as to feed the sewing object between the presser feet arranged above the needle plate in the direction of fabric feeding Give. [0003] Here, if the upward moving force is applied with a large displacement on the downstream side of the feeding direction by using the feed teeth, the elastically pressed and supported material presser foot will spring up, and the material cannot be fed properly. Shortcomings. Therefore, the vertical feed shaft is arranged on the upstream side of the cloth feeding direction across the kettle shaft, and t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D05B27/02D05B69/32
Inventor 佐佐木义行岩田寿之绪方孝宏
Owner JUKI CORP
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