Device for previously withdrawing bobbins of doffer

Abstract

The invention relates to a device for previously withdrawing bobbins of a doffer, which is applied to a spinning machine with friction drive type spindles and friction drive type bobbins. The device comprises a doffing dolly; the doffing dolly is arranged on a guide way and can walk along the guide way; the walking route of the doffing dolly is parallel with the center connecting wires of the spindles of the spinning machine; one side of the doffing dolly, which is near to the spindle, is provided with a conical surface pre-loosing disc which can rotate around a rotating shaft through the rotating shaft; the disc plane of the conical surface pre-loosing disc is perpendicular to the length direction of the spindle; the edge of the conical surface pre-loosing disc is designed to be a conical surface; the periphery of the edge of the conical surface pre-loosing disc is evenly provided with at least three of arc gaps; the distance among the adjoining arc gaps is equal to that among the spindles; and the radiuses of the arc gaps are larger than those of the spindles and less than the those of the bottom surfaces of the bobbins. The device has ingenious and reasonable structure, has high automation degree, can withdraw the bobbins on the premise that the yarn is not damaged, and leads the spinning machine which uses a large number of the common spindles to be capable of realizing the automatic doffing.

Description

technical field [0001] The invention belongs to the technical field of textile machinery and equipment, and in particular relates to a doffer pre-drawing device applied to a spinning frame in which a spindle and a bobbin are friction-driven. Background technique [0002] With the continuous development of the textile industry, the degree of automation of textile production is also getting higher and higher. The improvement of automation level can effectively reduce production costs and improve enterprise efficiency, which is the only way for my country to move from a large textile country to a textile power. [0003] Doffing workers are one of the main workers in the traditional spinning frame workshop, so doffing automation is one of the important contents of spinning workshop automation, and solving the difficulty of tube removal is the core problem of realizing doffing automation. In order to solve this problem, the common countermeasure at home and abroad is to use a br...

AI Technical Summary

Problems solved by technology

Although this method achieves the purpose of easily pulling the bobbins, the cost of use is too high, and it can only be applied to new spinning frames, not suitable for spinning frames with ordinary spindles that have a huge amount in our country.

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