While traditional electrical mechanical sewing machines can sew a different sewing track, but need highly experienced craftsmen, efficiency is not high.
传统的电动机械式缝纫机虽然也可缝制出各式花样，但是需要经验非常丰富的技工，效率也不高。
The invention provides a pressure foot lifting and inverted material feeding device of a sewing machine, belonging to the mechanical technical field.
本发明提供了一种缝纫机的压脚提升及倒送料装置，属于机械技术领域。
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