Automatic shuttle replacement device and method and sewing machine

A bobbin, automatic technology, applied in sewing machine components, bobbin winding in sewing machines, sewing equipment, etc., can solve the problems of complex structure, limited number and low efficiency of manipulators

Active Publication Date: 2018-06-29
JACK SEWING MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But, the bobbin and the bobbin case quantity that are placed on the turntable are limited, still need the workman regularly to take off the bobbin and bobbin case that change on the turntable, then remove the remaining suture thread on the bobbin, bobbin after bobbin is wound. put into the bobbin case and thread, and place the bobbin and the bobbin case on the turntable, so the above-men

Method used

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  • Automatic shuttle replacement device and method and sewing machine
  • Automatic shuttle replacement device and method and sewing machine
  • Automatic shuttle replacement device and method and sewing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0154] The winding and threading principle of the bobbin winding and threading mechanism 50 in Embodiment 1 is as follows:

[0155] First, the first bobbin core 11 is separated from the first bobbin case 12; as Figure 16 and Figure 17 As shown, after all the remaining sutures 70 on the first bobbin core 11 are removed, the first bobbin core 11 and the first bobbin case 12 are taken off from the fixed shaft 41 by the shuttle gripping mechanism 30, and are placed on the winding shaft backwards. On the bobbin 52 , the first bobbin 11 is locked and fixed on the bobbin 52 under the action of the bobbin fixing spring 57 . Grab the shuttle linear stepping motor reverse action reset, make the hook claw 33 of grabbing the shuttle and loosen the bobbin case plate 17 of the first bobbin case 12, then the hook portion 161 of the clip bar 16 on the first bobbin case 12 does not catch the first bobbin case. The flange 112 of the bobbin core 11; the hook seat moving motor 317 rotates to dr...

Embodiment 2

[0160] The knife rest installation sleeve 541 is rotatably and movably supported in the main board 21, and the said winding shaft 52 is rotatably installed in the knife rest installation sleeve 541, that is: the knife rest installation sleeve 541 can be rotated and can also be moved forward and backward. move, while the bobbin 52 is only rotatable. Now, the winding drive source 51 is a winding motor fixed on the main board 21, the output end of the winding motor is fixed to the winding shaft 52; Frame installation sleeve 541 moves the knife rest driving source along the axis of the winding shaft 52. The knife rest moving driving source can be an electromagnet, a cylinder, etc., and the output end of the knife rest moving driving source is fixed with a moving plate. The mounting sleeve 541 is rotatably supported in the moving plate. The clamping drive source 53 is a clamping motor fixed on the moving plate. The output end of the clamping motor is fixed to the knife rest mountin...

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PUM

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Abstract

The invention provides an automatic shuttle replacement device for replacing a first shuttle with the insufficient allowance of threads and a first shuttle case. The automatic shuttle replacement device comprises a main board, a shuttle case limiting shaft, a shuttle grabbing mechanism, a shuttle remaining thread removal mechanism, a shuttle winding and threading mechanism and a thread cutting mechanism, wherein the shuttle case limiting shaft is sleeved with a second shuttle wound by threads sufficiently and a second shuttle case; the shuttle grabbing mechanism comprises a hook claw base, a shuttle grabbing driving source and a shuttle grabbing hook claw, the shuttle grabbing hook claw is used for hooking a shuttle case plate on the first shuttle case or the second shuttle case; the shuttle remaining thread removal mechanism comprises a fixing shaft, a driving wheel unit and a driven wheel unit which are installed on the main board, and a thread clamping space; the shuttle and windingthreading mechanism comprises a winding shaft and a clamping base, a clamping interval and an interval inlet are formed in the clamping base; the cutting mechanism comprises a thread cutting edge arranged on the clamping base. The second shuttle wound by threads sufficiently and the second shuttle case can be replaced in a rotating shuttle, and automatic remaining thread removal, winding, threading and cutting can be performed on the replaced first shuttle and the second shuttle case, so that the automatic degree is quite high, and then the sewing efficiency is greatly improved.

Description

technical field [0001] The invention relates to the field of sewing machines, in particular to an automatic bobbin core changing device and method. [0002] The invention also relates to a sewing machine. Background technique [0003] The rotary hook of the sewing machine is equipped with a bobbin case and a bobbin. The bobbin is wound with sutures, and the amount of sutures wound on the bobbin is limited. Empty needles will destroy the fabric or a certain seam, which will cause the seam to stop halfway, and the part of the seam that has been sewn must be removed. Therefore, in actual operation, the turner will stop sewing after sewing for a period of time according to experience, then take out the bobbin in the rotary hook, and pull out all the remaining sutures on the bobbin, and then rewind the bobbin full of sutures. Putting it into the rotary hook and then continuing to sew, it takes a long time, the operation is cumbersome, and the efficiency is low, which eventually...

Claims

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Application Information

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IPC IPC(8): D05B59/04
CPCD05B59/04D05D2207/05
Inventor 何贤权蒋昌林潘建国吴善敏吴克宏
Owner JACK SEWING MASCH CO LTD
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