Crosswound bobbin and method for producing such a bobbin

A cross-winding bobbin and bobbin technology, which is applied in the cross-winding bobbin and its manufacturing field, can solve the problems of narrowing the laying width, loss of precision winding, and lack of appearance shape, etc., to achieve outstanding unwinding performance and improved unwinding performance , the effect of uniformity improvement

Active Publication Date: 2009-06-10
RIETER AUTOMATIC WINDER GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In order to avoid hardened raised edges in precision winding or graded precision winding, the same countermeasures as are known in rough winding are now taken, i.e. a further reduction of the laying width as described above or a normal edge Displacement, so that the package yarn layers (Garnlagen) doffed sequentially without edge displacement are alternately displaced on the edge of the cross-wound package, the package structure and the external shape of the package lose their characteristics and thus lose the advantages of precision winding

Method used

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  • Crosswound bobbin and method for producing such a bobbin
  • Crosswound bobbin and method for producing such a bobbin
  • Crosswound bobbin and method for producing such a bobbin

Examples

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Embodiment Construction

[0039] in such as figure 1 In the shown winding mechanism 1 of the winding station for producing cross-wound bobbins, a cross-wound bobbin 2 is driven by a friction roller 3 rotating in the direction of arrow 4 . The cross-wound bobbins 2 are held in a rotatable creel 5 and rest on friction rollers 3 . Yarn 6 is conveyed in the direction of arrow 7 . The yarn 6 passes through a yarn guide 8 that moves back and forth in the axial direction of the cross-winding bobbin 2 and is wound onto the cross-winding bobbin 2 . The yarn guide 8 is driven by means of a reciprocating mechanism 9 . The friction roller 3 is driven by an electric motor 11 via a shaft 10 . The reciprocating mechanism 9 is connected with a motor 13 through an effective connecting piece 12 . Motor 11 and motor 13 are controlled by microprocessor 14 . The microprocessor 14 includes a program for controlling the laying distance of the yarn 6 according to the actual diameter of the cross-wound bobbin 2 . The act...

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Abstract

During the production of cross-wound bobbins, the yarn wound onto the cross-wound bobbins is reciprocated by means of a yarn guide, which can be controlled independently of the drive of the cross-wound bobbins and determines the laying width. Here, the laying width is variable. A portion of the cheese layer has a different width than the rest. The rhombus of the cheese layer is all closed. The invention can be installed in the winding position of spinning machines producing cross-wound bobbins and improves package density, uniformity and unwinding performance of cross-wound bobbins.

Description

technical field [0001] The invention relates to a cross-wound bobbin and its manufacturing method. The cross-wound bobbin is made by precision winding or graded precision winding, and the rhombus formed in the winding bobbin is respectively wound closely side by side or parallel to each other at intervals. The yarn segments are continuously filled into layers of cheese. Background technique [0002] Cross-wound bobbins can be produced as coarse, precision or stepped precision winding. As used herein, the term "cross-wound bobbin" also includes packages formed during the winding process of cross-wound bobbins. [0003] When manufacturing thick wound cross-winding bobbins, the reciprocating speed of the yarn and the peripheral speed of the cross-winding bobbin have a stable ratio to each other during the winding process, that is, from the beginning to the end of the winding. As a result, the yarn crossing angle remains constant, while the turns ratio decreases with increasin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H54/06B65H54/02B65H54/04B65H54/28B65H54/30B65H54/32B65H54/38
CPCB65H54/385B65H2701/31B65H54/325B65H54/2833B65H54/2827
Inventor 亚历山大·马克思
Owner RIETER AUTOMATIC WINDER GMBH
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