Fibre bundle buncher for spinning machine

Abstract

A fiber bundle collecting device is provided on the downstream side of a final delivery roller pair of a drafting device and includes a delivery portion and a suction pipe 32 having a sliding surface 32b that is equipped with a suction hole 32a provided on the upstream side of the nip point of the delivery portion with respect to a direction in which a fiber bundle moves. A wrapping member 33 is provided on the side opposite to the suction pipe 32 across a bottom nip roller 35a constituting the delivery portion. An air-permeable apron 34 is wrapped around the suction pipe 32, the wrapping member 33, and the bottom nip roller 35a. A regulating guide 49 for preventing lateral displacement of the air-permeable apron 34 is formed integrally with the suction pipe 32. The regulating guide 49 is formed by removing a part of an elevated step portion 50 in conformity with the width of the air-permeable apron 34, the step portion 50 being formed on the front side of the top surface of the suction pipe 32 so as to extend in a longitudinal direction.

Description

technical field [0001] The present invention relates to a fiber bundle bundling device of a spinning machine, and more particularly to a fiber bundle converging device provided, for example, on the downstream side of a drafting device (drafting section) of a spinning machine and adapted to collect fibers produced by the drafting device. Fiber bundle bundling device for drawn fiber bundles. Background technique [0002] A variety of fiber bundle bundle devices have been proposed for the purpose of achieving improvements in yarn quality, such as reducing the generation of fuzz by collecting the drawn fiber bundles before they are subjected to twisting. An endless perforated belt (perforated apron) is typically used for the collection and delivery of a fiber bundle for the basic functions of these devices. [0003] For example, refer to the descriptions in paragraphs 0022, 0030 and accompanying drawings 1 and 7 of Japanese Patent Laid-Open No. 11-286837 as Patent Document 1. ...

AI Technical Summary

Problems solved by technology

However, in the structure in which an adjustment element is also provided in addition to the suction pipe and the winding element, the replacement of the air-permeable apron is quite cumbersome because the cooperation between the winding element and the adjustment element needs to be loosened during replacement. Therefore need a large amount of time to replace hundreds or even thousands of such air-permeable aprons arranged on each spinning machine

In addition, the structure disclosed in Patent Document 3 leads to an increase in cost, which is designed to perform special processing on the rotating shaft

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