Inner presser foot device of sewing machine
A sewing machine and internal pressure technology, which is applied to sewing machine components, sewing equipment, cloth pressing mechanisms, etc., can solve the problems of increased cost of guide members and increased overall volume of the internal presser foot device.
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[0026] In order to further have a clearer and more detailed understanding and understanding of the structure, use and features of the present invention, a preferred embodiment is given, and the details are as follows in conjunction with the drawings:
[0027] First, see image 3 As shown, the inner presser foot device 20 of the present invention is mainly arranged at the front end of the headstock 30 of the sewing machine, and is installed in cooperation with the upper shaft (not shown) of the sewing machine, so that the upper shaft can simultaneously drive the needle bar 32 with a needle And the inner presser foot device 20 of the present invention.
[0028] As shown in the figure, the front end of the upper shaft is assembled with a crankshaft 31 and connected with a connecting rod to the needle bar 32, and the middle part of the upper shaft is fixedly provided with an eccentric cam (not shown) to drive The swing mechanism 21 of the movement amount of the inner presser foot...
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