Anti-reversal device of rear roller drive in spinning frame

Abstract

The invention relates to an anti-inversion device for transmission of a middle roller and a rear roller on a spinning frame. The anti-inversion device is characterized in that a two-hole bearing seat (4) is fixed on a drafting wall board (11) of the spinning frame; a first gear (1) is fixed on a transmission shaft (2) of the middle roller and the rear roller; one end of a rotation-stopping shaft (10) is fixed on the two-hole bearing seat (4), and the other end of the rotation-stopping shaft (10) is provided with a bearing (8) and an overrunning clutch (5) which are fixed on the rotation-stopping shaft (10) by stopping nuts; a stopping gear (3) is arranged on an outer ring of the overrunning clutch (5) and the bearing (8); the stopping gear (3) is meshed with the first gear (1). The anti-inversion device has the advantages that when the spinning frame is stopped or the process gear is replaced, the inversion of the transmission shaft of the middle roller and the rear roller, generated by release of spinning and drafting torque, can be automatically prevented, so that the problems of thick and thin sections of yarns and broken ends of the yarns in starting are furthest avoided; power does not need to be added, so that the artificial anti-inversion operation can be avoided.

Description

technical field [0001] The invention belongs to the field of spinning frame equipment, and in particular relates to an anti-reversal device for a pull-back drive in a spinning frame. Background technique [0002] At present, the drafting of spinning frames on the market is mainly in the form of three-roller two-zone drafting, and the middle roller bears a large torque load. Anti-backward gear device, such as Image 6 , when changing the process gear, the usual operation is to insert the anti-reverse gear piece between the two teeth of the anti-reverse gear on the transmission shaft of the middle and rear rollers after the spinning machine stops, and block the gear to prevent the middle and rear rollers from The transmission shaft reverses due to the torque release of the middle roller, which is beneficial to reduce the quality problems such as coarse and fine details of the yarn and yarn start-up breakage. [0003] In fact, the above-mentioned mechanism has certain limitati...

AI Technical Summary

Problems solved by technology

[0003] In fact, the above-mentioned mechanism has certain limitations: that is, after parking and before this operation, because the transmission chain does not have a mechanism to prevent reverse rotation, and there is gear backlash in the transmission chain, elastic deformation of the transmission belt, etc. The rollers will still reverse to a certain extent due to the release of torque, which will inevitably cause quality problems such as coarse and fine details of the yarn, yarn start-up breaks, etc.

In other words, the structure of the anti-reversing gear only prevents a greater degree of reversing, but cannot completely control the reversing of the drive shaft of the middle and rear rollers.

Moreover, in actual operation, there are often cases where this operation is neglected.

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