Integral doffing device of ring spinning frame

Abstract

The invention relates to an integral doffing device for a ring throstle, comprising a lifting beam and a lifting connecting rod mechanism which is hinged with the lifting beam, wherein, an inlet and outlet swinging arm is hinged on the lifting beam; one end of the inlet and outlet swinging arm is hinged with a beam of a yarn holding device, and at least one inlet and outlet cylinder is hinged between the other end of the inlet and outlet swinging arm and the lifting beam; the lifting connecting rod mechanism at least comprises two lifting connecting rods; a lifting swing stem is hinged on each lifting connecting rod; one end of the lifting connecting rod is hinged to the lifting beam and the other end of the lifting connecting rod is hinged with a lifting tension rod; and two inlet and outlet swinging arms are at least hinged on the lifting beam, and one inlet and outlet swinging arm is a bended swing stem. The doffing device has a compact structure, is convenient to operate and use, not only can be matched with a novel ring throstle but also is suitable for modifying a prior ring throstle, and has wide use range and strong applicability.

Description

technical field [0001] The invention relates to a ring spinning frame, in particular to the improvement of the structure of the collective doffing device of the ring spinning frame. Background technique [0002] The ring spinning frame is a large-scale, large-scale and labor-intensive process equipment in the spinning mill. The collective doffing device on the ring spinning frame is an important link for cotton spinning enterprises to improve labor productivity; it is the development trend of the current spinning production. Compared with the traditional manual full bobbin doffing, it significantly reduces the labor intensity of the operator, significantly improves the working environment and saves a lot of labor. [0003] The existing collective doffing device of the ring spinning frame mainly includes a doffer frame with a yarn holder fixedly installed and a herringbone linkage mechanism for hinged doffer frames. Each yarn holder on the doffing frame corresponds to a spi...

AI Technical Summary

Problems solved by technology

The collective doffing device of this structure is required to maintain a strict action space and setting position during work. For example, it is necessary to ensure sufficient swing space for the doffing frame and the herringbone linkage mechanism, and the center of the bobbin conveying convex plate The thread must be located on the extension line of the center line of the spindle, so this structure can only be connected with the pre-designed frame of the spinning frame, and cannot be applied to the transformation of a large number of existing ring spinning frames without collective doffing devices, so that the collective The range of application of the doffer is strictly limited

At the same time, due to the limitation of the swing space, the existing collective doffing device must also set up an empty bobbin storage station at the position of the dragon tendon, correspondingly adding an intermediate transitional action link, adding an unreliable factor, and prolonging the doffing time. Yarn time, which not only increases the complexity of the structure of the doffing device, but also complicates the action process, increasing the difficulty of controlling the consistency of the doffing frame in and out

The existing ring spinning frame with collective doffing device has a wider fuselage, takes up more space, and brings inconvenience to the operator

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