Sewing machine

Parameters, such as the amount of up-and-down sending after a to-be-sewed objects detect a step which becomes thick, press pin pressure and thread tension, can be changed. A sewing machine includes: a cloth press pin (71), which presses a sewed object from above; a press pin height detection unit (7...

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Bibliographic Details
Main Authors TOSHIYUKI IWATA, TATSUYA OGAWA, YUU IKOSHI
Format Patent
LanguageChinese
English
Published 20.10.2017
Subjects
EMBROIDERING
SEWING
TEXTILES
TUFTING
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Summary:Parameters, such as the amount of up-and-down sending after a to-be-sewed objects detect a step which becomes thick, press pin pressure and thread tension, can be changed. A sewing machine includes: a cloth press pin (71), which presses a sewed object from above; a press pin height detection unit (76), which detects the height of the cloth press pin (71); and a control device (90), which plays a control role if the press pin height detection unit (76) detects that the cloth press pin (71) jumps on the step thicked by the sewed object so as to change parameters associated with sewing. For instance, if the press pin height detection unit (76) detects that the cloth press pin (71) jumps on the step, the control device (90) controls an up-and-down feeding motor (66) applying upward and downward reciprocating movement to feeding teeth (31) to raise the feeding teeth (31) in a feeding interval. 本发明能够对检测出被缝制物变厚的台阶部之后的上下进给量、压脚压力、线张力等参数进行变更。缝纫机具有：布料压脚(71)，其从上方按压被缝制物；压脚高度检测部(76)，其对该布料压脚(71)的高度进行检测；以及控制装置(90)，如果压脚高度检测部(
Bibliography:Application Number: CN20171216825