Thread feeding apparatus for an automatic embroidering machine

Abstract

A thread feeding apparatus for an automatic embroidering machine comprises a thread supplying unit to supply one upper thread selected among a plurality of upper threads different in color; a pair of thread guides formed with a thread guiding channel to guide the upper thread supplied from the thread supplying unit, and continuously formed along a thread transferring path of the thread guiding channel, leaving a space portion; a thread take-up unit provided with a thread retainer to retain the upper thread, oscillating between a top dead point and a bottom dead point, and strengthening and releasing the tension of the upper thread; and a thread take-out unit comprising a thread take-out lever to hold and take out the upper thread passing through the space portion, and a thread take-out driver to reciprocate the thread take-out lever to put the upper thread held by the thread take-out lever into the thread retainer. Thus, the present invention provides a thread feeding apparatus for an automatic embroidering machine, which prevents an upper thread from being cut when the upper thread is replaced, and reduces time taken to replace the upper thread, thereby enhancing work efficiency.

Description

technical field [0001] The present invention relates to a thread feeding device of an automatic embroidery machine, more particularly, to a thread feeding device of an automatic embroidery machine, which has an improved structure for feeding upper thread to a thread picking unit. Background technique [0002] An automatic embroidery machine is a sewing machine that automatically embroiders predetermined patterns, trademarks, etc. on clothes, labels, shoes, etc., using threads of various colors and according to a preset program. [0003] In general, an automatic embroidery machine includes a thread supply unit for supplying upper threads of different colors from a plurality of thread axes to the embroidery operation; a plurality of needle working units for receiving the upper threads from the thread supply unit one needle work unit selected from three needle work units to perform the embroidery work; and a plurality of thread pick-up units for increasing or releasing the uppe...

AI Technical Summary

Problems solved by technology

Therefore, when the upper thread is picked up by the thread holder of the thread pickup unit, an impact is applied to the upper thread and the upper thread may break

Also, since the thread holder of the thread pick-up unit moves backward toward the thread transfer route, it takes a long time to replace the upper thread, thereby reducing work efficiency

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