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Yarn winder, package, and method of making a package

A yarn winding machine and yarn technology, which is applied in the direction of transportation and packaging, thin material handling, and delivery of filamentous materials, etc., which can solve the problems of damaged package appearance and feeling

Active Publication Date: 2020-03-06
MURATA MASCH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to this swing change, sparse and dense parts are formed on the surface layer of the package, thereby deteriorating the appearance of the package and the feeling (hand feel) when touched.

Method used

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  • Yarn winder, package, and method of making a package
  • Yarn winder, package, and method of making a package
  • Yarn winder, package, and method of making a package

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Embodiment Construction

[0025] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In each drawing, the same reference numerals are assigned to the same or corresponding parts, and overlapping descriptions will be omitted.

[0026] First, refer to figure 1 The overall configuration of the automatic winder 1 including the winder unit (yarn winding machine) 10 of the present embodiment will be described. In this specification, "upstream" and "downstream" mean upstream and downstream in the traveling direction of the yarn at the time of yarn winding.

[0027] like figure 1 As shown, the automatic winder 1 includes a plurality of winder units 10 arranged side by side, an automatic doffing device 80 , and a machine control device 90 as main structures. Each winder unit 10 is configured to wind the yarn 20 unwound from the yarn supply bobbin 21 while traversing it, thereby forming a package 30 . Traversing means imparting reciprocating...

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PUM

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Abstract

A winder unit (10) includes a package driving motor (41) adapted to rotationally drive a package (30), a traverse device (70) adapted to traverse a yarn (20) to be wound into the package (30), and a creeping control section (78x) and a creeping rate switching section (50x) adapted to control the traverse device (70) to perform creeping. In the winder unit 10, after a first yarn layer is formed by winding the yarn (20) into the package (30) while performing the creeping under a normal creeping rate, a second yarn layer is formed by winding the yarn (20) into the package (30) while performing the creeping under a winding end creeping rate that is lower than the normal creeping rate.

Description

technical field [0001] The present invention relates to a yarn winding machine, a package and a method of manufacturing the package. Background technique [0002] As a conventional yarn winding machine, for example, as described in Japanese Patent Application Laid-Open No. 2007-230708 (Patent Document 1), there is known a package drive unit that rotationally drives the package, and a package drive unit that drives the package to be wound on the package. Yarn winding machine with traversing device for yarn traversing. In the yarn winding machine described in Patent Document 1, the swing change is prohibited when the package winding starts, and the swing change starts when the current diameter of the package becomes equal to or larger than the set diameter. [0003] In the yarn winding machine, for example, the generation of bulging of the package may be suppressed by changing the swing. However, due to this change in wobbling, sparse and dense portions are formed on the sur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H54/32B65H55/00
CPCB65H54/325B65H55/00B65H54/385B65H2701/31
Inventor 牟田胜文
Owner MURATA MASCH LTD