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Sewing machine upper thread breaking and clamping device

A clamping device and sewing machine technology, applied in the direction of thread cutting mechanism, sewing machine components, sewing machine ferrule mechanism in sewing machines, etc., can solve the problems that it is difficult to play the function of the thread breaking mechanism normally, and the sewing thread breaking operation cannot be properly performed. , to achieve the effect of improving the efficiency of disconnection operations, preventing winding, and improving accuracy

Inactive Publication Date: 2008-12-31
MOBASE SUNSTAR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When performing the so-called thread breaking operation of cutting the sewing thread under the state of sewing, due to the prior art, the needle plate between the above-mentioned sewing needle and the bobbin case ( figure 2 52) The upper thread and the lower thread are cut off at the same time, so the thread breaking operation of the sewing thread cannot be properly performed, and when the sewing thread is thick, the thread cannot even be broken, which reduces the efficiency of the thread breaking operation; because there is no additional configuration to connect the thread breaking mechanism With the supporting mechanism of the sewing machine, the vibration or movement of the above-mentioned thread-breaking mechanism is caused during the thread-breaking process of the sewing thread, so that it is difficult to perform the function of the above-mentioned thread-breaking mechanism normally

Method used

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  • Sewing machine upper thread breaking and clamping device
  • Sewing machine upper thread breaking and clamping device
  • Sewing machine upper thread breaking and clamping device

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Embodiment Construction

[0046] The preferred embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0047] figure 1 It is a perspective view of a sewing machine equipped with an upper thread breaking and clamping device according to an embodiment of the present invention. On both sides of the workbench 10 where the object to be sewn is placed, support columns 22 are vertically erected, and a fixed frame 20 made of rectangular steel pipes is disposed between the above-mentioned support columns 22 along the horizontal direction.

[0048] There are elliptical guide holes 12 on both sides of the upper surface of the above-mentioned workbench 10, and the above-mentioned guide holes 12 can transmit the action of the Y-axis (the front and back direction of the sewing machine) transfer mechanism (not shown) below the workbench 10 to The sewn object fixing part 50 on the upper side of the workbench 10 .

[0049] The sewing head 40 is combined w...

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Abstract

The invention relates to a threading cutting and holding device of a sewing machine. The threading cutting and holding device comprises a main body unit connected to one side of a sewing head of the sewing machine, a first actuator unit combined with one side of the main body unit and generating fore-and-aft moving force, a rectilinear motion guide unit combined with another side of the main body unit, a backspin bracket unit connected with the first actuator unit and slided back and forth on the rectilinear motion guide unit along with the motion of the first actuator unit, a second actuator unit combined with the backspin bracket unit which can generate left and right moving force, and a threading cutting and holding unit for threading cutting and holding threads along with the motion of the second actuator unit.

Description

technical field [0001] The invention relates to a sewing machine, in particular to an upper thread breaking and clamping device of the sewing machine. Background technique [0002] A sewing machine usually consists of the following units: a sewing needle, which reciprocates up and down and supplies the upper thread; a bobbin case, which interacts with said sewing needle and supplies the lower thread; In addition, the above-mentioned cloth pressing piece has a pinhole that can allow the above-mentioned sewing needle to pass through. [0003] The operation process of the above-mentioned sewing machine is as follows. The sewing object is fixed on the above-mentioned cloth pressing member, the above-mentioned sewing needle passes through the sewing object and moves up and down to supply the needle thread, and the sewing operation is performed by the interaction between the above-mentioned sewing needle and the bobbin case under the needle plate. [0004] When performing the so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D05B65/06
CPCD05B29/08D05B37/04D05B63/02D05B65/06D05D2205/32
Inventor 李东奎
Owner MOBASE SUNSTAR CO LTD
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