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Untwisting nozzle

A technology of untwisting and nozzle

Active Publication Date: 2008-03-05
MURATA MASCH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem with the above-mentioned air-flow untwisting nozzle is that it is difficult to limit and position the yarn end at the position facing the nozzle hole, and the position of the yarn end is shifted at the moment of blowing air, which is prone to incomplete untwisting treatment
Moreover, if the position of the yarn end is shifted in this way, it is difficult to perform untwisting treatment efficiently by means of one blast, and there is a disadvantage that measures such as multiple blasts must be taken.

Method used

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no. 1 Embodiment approach

[0017] Next, the untwisting nozzle of the present invention will be described with reference to the drawings. Fig. 1 is a perspective view showing the general structure of the untwisting nozzle; Fig. 2 (a) is a side view of the untwisting nozzle, Fig. 2 (b) is a top view of the untwisting nozzle, and Fig. 2 (c) is a front view of the untwisting nozzle ; Figure 3 is a structural view of the joint device with untwisting nozzles. In addition, for convenience of description, the direction in which the compressed air is ejected from the nozzle hole 2 in FIG. 1 is defined as "front", and the opposite direction is defined as "rear". In addition, in FIG. 1 , a direction perpendicular to the front-rear direction in the horizontal direction is defined as a "left-right direction", and a vertical direction is defined as a "vertical direction".

[0018] As shown in Figures 1 and 2, the untwisting nozzle 1 is composed of a main body 4 having a nozzle hole 2 and an inner flow channel 3 comm...

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Abstract

The invention eliminates the occurrence of untwisting failure in the air-flow type untwisting nozzle, improves the reliability of untwisting processing, and improves the processing efficiency of untwisting processing. Wherein, a guide piece (6) having a slit (12) for restricting the position of the yarn end (Y) is provided at a position facing the nozzle hole (2) at a predetermined interval. Position the inner end (12b) of the slit (12) to face the nozzle hole (2). As a result, the slit (12) can reliably restrict the deviation of the yarn end (Y) from the injection direction of the compressed air or in a direction not related to the injection direction, so that the yarn end (Y) can be held in an appropriate posture and untwisted deal with. Therefore, if the untwisting nozzle (1) is adopted, not only the generation of untwisting defects can be eliminated, the reliability of untwisting processing can be improved, but also the processing efficiency of untwisting processing can be improved.

Description

technical field [0001] The present invention relates to an air-flow type (Ea-Blast type) untwisting nozzle for untwisting a yarn end by spraying compressed air to the yarn end from a nozzle hole. This untwisting nozzle is suitable for a device for joining untwisted yarn ends to each other. Background technique [0002] The untwisting nozzle of the piecing device includes an untwisting nozzle for untwisting the yarn end by applying a vortex to the yarn end introduced into the nozzle tube (see, for example, Patent Document 1). Although this vortex type untwisting nozzle can well untwist the spun yarn formed by plying and twisting short fibers such as cotton yarn, but for the hemp yarn formed by the wet spinning method, due to the influence of connecting the fibers to each other Due to the influence of size or glue, etc., there is a problem that the twist of the yarn end cannot be untied well. Also, since the process is performed in the nozzle tube using vortex, there is a di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01H15/00D01H4/48
CPCB65H69/063B65H2701/31
Inventor 田村武士
Owner MURATA MASCH LTD