Yarn monitoring device and yarn winding machine

A technology for monitoring devices and yarns, applied to measuring devices, transportation and packaging, instruments, etc., can solve problems such as undocumented consideration of temperature changes

Active Publication Date: 2019-07-02
MURATA MASCH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Here, in Japanese Patent Laid-Open No. 2013-204190, Japanese Patent Laid-Open No. 2013-203527, and Japanese Patent No. 3707413, a technique for adjusting a reference value for evaluation of a yarn monitoring device is described, but it is not described. A technique for adjusting the reference value for evaluation in consideration of temperature fluctuations

Method used

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  • Yarn monitoring device and yarn winding machine
  • Yarn monitoring device and yarn winding machine
  • Yarn monitoring device and yarn winding machine

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Embodiment Construction

[0038] Next, embodiments of the present invention will be described with reference to the drawings. figure 1 It is a schematic side view of the yarn winding unit 1 included in the yarn winding machine according to the embodiment of the present invention.

[0039] The yarn winding machine of the present embodiment has a configuration in which a plurality of yarn winding units 1 are arranged side by side. This yarn winding machine includes a machine management device (not shown) that collectively manages the yarn winding unit 1 .

[0040] figure 1 The illustrated yarn winding unit 1 is configured to wind a yarn 10 supplied from a yarn supplying section (not shown) around a winding bobbin 21 to form a package 20 . like figure 1 As shown, when the yarn winding machine is an automatic winder, the mechanism supporting the yarn feeding bobbin corresponds to the yarn feeding part.

[0041] Each yarn winding unit 1 includes a unit control unit 30 . The unit control unit 30 is comp...

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PUM

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Abstract

The invention relates to a yarn monitoring device and a yarn winder. The yarn monitoring device (15) includes a sensor unit (35), an obtaining section (55), a setting section (58) and an evaluation section (53). The sensor unit (35) outputs a detection value corresponding to the presence / absence of the yarn (10) in the detection area (36) and / or a state of the yarn (10). The obtaining section (55) obtains the detection value in a state in which no yarn (10) exists in the detection area (36). The setting section (58) sets an evaluation reference value based on at least one of a plurality of detection values which are obtained by repeating the detection of the detection value by the obtaining section (55) until the yarn (10) is inserted into the detection area (36).The evaluation section (53) evaluates the state of the yarn (10) based on the evaluation reference value set by the setting section (58).

Description

technical field [0001] The present invention mainly relates to a yarn monitoring device for monitoring a moving yarn. Background technique [0002] Conventionally, a yarn winding machine configured to wind a yarn around a bobbin, such as a spinning machine and an automatic winder, is known. Such a yarn winding machine includes a yarn monitoring device (yarn clearer). The optical yarn monitoring device monitors the state of the yarn in real time and detects yarn defects ( There is an abnormal position in the quality of the yarn). [0003] Japanese Patent Laid-Open No. 2013-204190, Japanese Patent Laid-Open No. 2013-203527, and Japanese Patent No. 3707413 disclose optical yarn monitoring devices. [0004] The amount of light (projected light amount) irradiated from the light projecting section of the yarn monitoring device may vary due to temperature fluctuations. In particular, there may be cases where the temperature of the light projecting unit rises sharply for a few s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H63/028B65H69/04
CPCB65H63/065B65H63/0324B65H2701/31D01H13/22G01N21/8851G01N21/8915
Inventor 川畑智史
Owner MURATA MASCH LTD
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