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Yarn winding device

A winding device and yarn technology, which is applied in the directions of transportation and packaging, conveying filamentous materials, thin material processing, etc. It can solve the problems of package winding disorder and inability to accurately detect bobbin rotation speed, etc.

Active Publication Date: 2012-04-04
MURATA MASCH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the resolution of the rotation speed detection unit is coarse, the rotation speed of the bobbin may not be detected accurately
As a result, in the yarn winding device described in the above-mentioned patent document, during the accelerated winding of the package, the actual position of the reciprocating yarn guide may deviate from the ideal position, and the package may become entangled. communication disorder

Method used

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Examples

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Embodiment Construction

[0039] First, the yarn winding device 100 according to the first embodiment of the present invention will be described.

[0040] figure 1 is a diagram showing the overall configuration of the yarn winding device 100 . In addition, blank arrows in the figure indicate the feeding direction of the yarn Y.

[0041] In the yarn winding device 100, a yarn unwinding assisting device 2, a tension applying device 2, and a tension applying device are provided along the feeding direction of the yarn Y unwound from the yarn supplying bobbin 1. ) 3, joint device (yarn joining device) 4, yarn clearer 5, traverse device 6, bobbin support device 7.

[0042] The yarn unwinding assisting device 2 assists unwinding of the yarn Y from the yarn supplying bobbin 1 . The yarn unwinding assisting device 2 restricts the expansion of the yarn Y unwound from the yarn supplying bobbin 1 due to centrifugal force, and assists the unwinding by appropriately adjusting the tension applied to the yarn Y.

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PUM

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Abstract

A yarn winding device includes a package driving unit that rotates a bobbin; a rotational-speed detecting unit that detects a rotational speed of the bobbin; a traverse guide that traverses a yarn to be wound around the bobbin; a traverse-guide driving unit that drives the traverse guide; a traverse control unit that controls driving of the traverse guide; and a target-position-command determining unit that determines a pre-correction target-position command for the traverse-guide driving unit from the rotational speed of the bobbin. The traverse control unit calculates a post-correction target-position command from a target-position correction amount, which is a feed-forward component depending on a detection delay time of the rotational-speed detecting unit and a response delay time of the traverse-guide driving unit, and the pre-correction target-position command, and controls the driving of the traverse-guide driving unit according to the post-correction target-position command.

Description

technical field [0001] The present invention relates to a technique of a yarn winding device that winds a yarn around a bobbin while reciprocating the yarn, and more specifically relates to a technology for winding the yarn around the bobbin while reciprocating the yarn. A technology that controls the reciprocating yarn guide of the yarn winding device. Background technique [0002] Conventionally, there is known a yarn winding device that winds a yarn by rotating a bobbin to form a package on the bobbin. The yarn winding device adjusts the quality of the yarn to be constant by cutting and removing the defective part when a defective part is found on the yarn. Therefore, when a defect is found on the yarn, the yarn winding device stops the rotation of the bobbin to stop the winding, cuts and removes the defect, performs a piecing operation to join the cut yarn ends, and then restarts the winding process. The winding of the yarn is started. [0003] At this time, since the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H54/28
CPCB65H2701/31B65H54/2887
Inventor 牟田胜文
Owner MURATA MASCH LTD
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