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Thread releasing device allowing automatic thread shearing and automatic press foot lifting

A presser foot lifting, automatic technology, applied in the field of sewing machines, can solve the problems of thread breakage, inconvenience in production, and inability to loosen the thread, and achieve the effect of improving quality and strong versatility

Active Publication Date: 2015-04-08
JACK SEWING MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the thread loosening device of the automatic thread trimmer can only realize the thread loosening when the thread is trimmed. When the presser foot is lifted, it cannot play the role of thread loosening, which will lead to thread breakage and other phenomena. Re-threading the needle brings inconvenience to production

Method used

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  • Thread releasing device allowing automatic thread shearing and automatic press foot lifting
  • Thread releasing device allowing automatic thread shearing and automatic press foot lifting
  • Thread releasing device allowing automatic thread shearing and automatic press foot lifting

Examples

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Embodiment Construction

[0015] The present invention will be further described below with specific embodiment, see figure 1 —3:

[0016] A thread loosening device for automatic thread trimmer and automatic presser foot lifter, comprising a thread trimmer driver 1 of the thread trimmer device and a presser foot lifter driver 2 of the presser foot lifter device, the thread trimmer driver 1 is fixed on the machine through a thread trimmer driver mounting plate 3 On the lower section 4 of the casing, the presser foot lifter driver 2 is fixed on the upper section 6 of the casing through the presser foot lifter driver mounting plate 5, and one end of the two steel wire ropes 7, 8 is fixed on the loosening crank 9, and one of the steel wire ropes The other end of 8 is connected with wire cutter driver 1 by fixed block 10, and the other end of wire rope 8 is passed in fixed block 10 and is fixed by screw. The other end of another steel wire rope 7 is fixed on the lifting pressure wrench 11 of the presser fo...

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Abstract

The invention belongs to the technical field of sewing machines and particularly relates to a thread releasing device allowing automatic thread shearing and automatic press foot lifting. A thread shearing driver is fixed on a casing through a thread shearing driver installation plate, a press foot lifting driver is fixed on the casing through a press foot lifting driver installation plate, one end of each steel wire rope is fixedly arranged on a thread releasing crank handle, the other end of one steel wire rope is connected with the thread shearing driver through a fixed block, the other end of the other steel wire rope is fixedly arranged on a press foot lifting wrench of the press foot lifting device, the thread releasing crank handle is connected with the press foot lifting wrench, and the thread releasing crank handle is connected with a thread clip assembly through a thread releasing shaft. The thread releasing device can achieve the thread releasing effect during thread shearing and press foot lifting. The drivers and the thread releasing crank handle are connected through the steel wire ropes, the steel wire ropes can be bended randomly, and the generality is high. When the position of the driver is changed, redesign is not required, and a user can simply adjust the length of the steel wire ropes.

Description

Technical field: [0001] The invention belongs to the technical field of sewing machines, in particular to a thread loosening device with automatic thread trimmer and automatic presser foot lifter. Background technique: [0002] When performing automatic thread trimming, in order to ensure that the suture can be cut off smoothly, it is generally necessary to loosen the thread while trimming the thread. Therefore, the existing interlock sewing machine is provided with a thread loosening device that cooperates with automatic thread trimmer. However, the thread loosening device of the automatic thread trimmer can only realize the thread loosening when the thread is trimmed. When the presser foot is lifted, it cannot play the role of thread loosening, which will lead to thread breakage and other phenomena. Rethreading the needle brings inconvenience to production. Invention content: [0003] The object of the present invention is to provide a thread loosening device for autom...

Claims

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Application Information

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IPC IPC(8): D05B47/04D05B65/00D05B29/02
CPCD05B29/02D05B47/04D05B65/00D05D2207/02D05D2207/05
Inventor 陈彬王志王名科
Owner JACK SEWING MASCH CO LTD