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Pulling device of sewing machine

A technology for sewing machines and objects to be sewn, applied to sewing machine components, sewing equipment, lubrication/cooling devices, etc., can solve problems such as heat generation and wear, and achieve low frictional resistance, reduced load, and stable high-speed operation.

Active Publication Date: 2012-01-25
JUKI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the high-speed operation is stopped or the like, the thrust plate and the clutch spacer slide on the contact surface, and heat may be generated on the contact surface on the clutch sleeve side made of an aluminum-based material with low wear resistance. There is a problem that the stability of the sewing machine operation or the durability of the device cannot be guaranteed due to the fear of wear and tear.

Method used

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  • Pulling device of sewing machine
  • Pulling device of sewing machine
  • Pulling device of sewing machine

Examples

Experimental program
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Effect test

Embodiment Construction

[0069] Below, based on Figure 1 to Figure 5 Embodiments of the present invention will be described in detail. In this embodiment, the pulling device 100 of the sewing machine is provided as the conveying mechanism, which applies a pulling force toward the downstream side in the conveying direction to the cloth on the downstream side of the sewing position in the conveying direction. Furthermore, in this embodiment, the direction in which the needle 8 moves up and down is referred to as the Z-axis direction (up-and-down direction), and one direction perpendicular thereto (the conveying direction of the object to be sewn) is referred to as the X-axis direction (front-rear direction). , the direction perpendicular to both the X-axis direction and the Z-axis direction will be described as the Y-axis direction (left-right direction). In addition, in this embodiment, the cloth which is a to-be-sewn object is conveyed in the X-axis direction, that is, figure 1 In the direction of ...

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PUM

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Abstract

The invention discloses a drawing device of seamer to rotate seamer at high speed stably, which is characterized by the following: setting two pieces of first thrust plate (56a, 56b) of phosphor bronze in the drawing device (100) of gap part (54) and clutch cylinder (53a, 53b) with one-way transcendental clutch as well as opposite end surface of clutch cylinder (53a) and gap part (54) separately;placing a piece of second thrust plate (57) of steel material between two pieces of first thrust plate; chucking each first thrust plate to the opposite end surface of clutch cylinder (53a) and gap part to rotate along axis direction integrally; forming oil-supplying path (55) on the clutch cylinder (53a) and through-hole on each first and second thrust plates; setting guiding grooves (A, B, C) to guide lubricating grease on the end surface of second thrust plate.

Description

technical field [0001] The invention relates to a pulling device for a sewing machine. Background technique [0002] In the pulling device of the sewing machine that applies a pulling force toward the downstream side of the cloth feeding direction to the sewn object such as cloth, the upper and lower sides of the sewing position in the cloth feeding direction, that is, the downstream side of the needle drop position are arranged to face each other up and down. At least one of the roller and the lower roller rotates as a drive wheel, so that the cloth held between the gap between the two is sequentially conveyed to the downstream side. Also, a known pulling device of a sewing machine is equipped with an upper roller incorporating a clutch mechanism that converts the swing motion of the arm obtained from the main shaft rotated by the sewing machine motor via a cam mechanism or a link mechanism into one direction. intermittent rotary motion (for example, refer to Patent Docume...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D05B27/10D05B71/00
Inventor 河本修石川孝则
Owner JUKI CORP
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