Untwisting nozzle
A technology of untwisting and nozzles, which is applied in the field of air-flow untwisting nozzles, which can solve problems such as yarn end position deviation, incomplete untwisting processing, yarn end limit positioning, etc., to achieve improved reliability, simple, reliable and stable workload Effect of untwisting performance
Active Publication Date: 2011-08-03
MURATA MASCH LTD
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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
[0018] Next, the untwisting nozzle of the present invention will be described with reference to the drawings. figure 1 It is a perspective view showing the general structure of the untwisting nozzle; figure 2 (a) is a side view of the untwisting nozzle, figure 2 (b) is a top view of the untwisting nozzle, figure 2 (c) is the front view of the untwisting nozzle; image 3 It is a structural diagram of a piecing device with an untwisting nozzle. In addition, for the convenience of explanation, the following figure 1 The direction in which the medium compressed air is ejected from the nozzle hole 2 is defined as "front", and the direction opposite thereto is defined as "rear". and, figure 1 In the horizontal direction, the direction perpendicular to the front-rear direction is defined as the "left-right direction", and the vertical direction is defined as the "up-and-down direction".
[0019] Such as figure 1 and figure 2 As shown, the untwisting nozzle 1 is composed o...
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The present invention provides an air blast type untwisting nozzle that can prevent a possible inappropriate untwisting operation to improve the reliability and process efficiency of an untwisting process. A guide piece 6 having a slit 12 for controlling the position of a yarn end Y is provided opposite to a nozzle hole 2 at a predetermined distance from the nozzle hole 2. An inner end 12h of theslit 12 is positioned opposite to the nozzle hole 2. Thus, the slit 12 can be used to reliably prevent the yarn end Y from deviating from a direction in which compressed air is ejected or from being pointed in a direction irrelevant to the ejecting direction. This allows an untwisting process to be executed with the yarn end Y held in an appropriate position. Therefore, the untwisting nozzle 1 can prevent a possible inappropriate untwisting operation to improve the reliability and process efficiency of an untwisting process.
Description
technical field [0001] The present invention relates to an air-flow type (Eablast type) untwisting nozzle for untwisting the yarn end by injecting 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 ...
Claims
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IPC IPC(8): D01H15/00D01H4/48
CPCB65H69/063B65H2701/31
Inventor 田村武士
Owner MURATA MASCH LTD