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Bobbin holder

A bobbin rack and bobbin tube technology, applied in the field of bobbin racks, can solve the problems of fixed filament clamping force reduction, wire catching errors, aging, etc.

Inactive Publication Date: 2013-12-18
OERLIKON TEXTILE GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such an elastic clamping body basically has the disadvantage that, due to its aging properties, the clamping force for fixing the filament decreases over time.
In addition, when the filament is fastened, the filament may subsequently slip in the clamping gap formed by the elastic body, which likewise leads to errors in catching the filament.

Method used

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Examples

Experimental program
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Embodiment Construction

[0025] figure 1 A first embodiment of the bobbin holder of the present invention is schematically shown in FIG. The bobbin holder has an overhanging bobbin spindle 1 which supports a bobbin 2 on its circumference. The bobbin 2 is pushed up to a stop 5 on the bobbin spindle 1 and is clamped by a clamping mechanism on the casing of the bobbin spindle 1 (not shown here). The bobbin spindle 1 is coupled to a motor 3 at the drive end 16 . The bobbin spindle 1 has a thread catcher 6 and a thread clamping element 7 on the opposite push-in end 10 .

[0026] Such bobbin holders are commonly used in winders to wind continuously fed filaments into spools on the circumference of a bobbin. One such winder is known from WO 2007 / 073860 A1. Here, reference is made to said literature in this regard. In such a winder, two bobbin holders arranged at a distance from each other are fixed on a turntable, so that the bobbin holders can be moved alternately into a winding area for winding the fi...

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Abstract

The improvement relates to a bottom holder for winding up a thread, wherein a bobbin case can be slid onto a protruding bobbin spindle. In order to catch and clamp a thread on the circumference of the bobbin spindle at the beginning of a bobbin travel, a thread catching device and a thread clamping means are provided at a free insertion end of the bobbin spindle. In order to both securely clamp and automatically release the thread end when sliding off a bobbin, according to the improvement, the clamping means is formed by a hollow cylindrical clamping bushing, an outer cone thereof being fitted into an inner diameter bounded by catches, such that a clamping slit substantially axially oriented and open toward the insertion end of the bobbin spindle is formed between the clamping bushing and the catch.

Description

technical field [0001] The invention relates to a bobbin holder for winding filaments according to the preamble of claim 1 . Background technique [0002] In the case of continuous winding of synthetic filaments, for example in a melt-spinning plant, it is known that the bobbins are wound alternately by means of two bobbin holders of the winder, which are arranged on a movable support up and alternately move to a winding area and a changing area. In the continuous winding of filaments it is envisaged that when a full spool has been completed on one of the bobbin holders, the filaments are handed over from the full bobbins of the bobbin holder to the empty bobbins of the second bobbin holder. Capturing and cutting or breaking the filament is required for this process to wind the filament on an empty bobbin or bobbin holder. A free filament is thus formed, which must be fastened to the bobbin or bobbin holder in order not to jeopardize the new winding process. [0003] A bo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H65/00
CPCB65H2701/31B65H65/00
Inventor C·马蒂斯J·维斯特法尔
Owner OERLIKON TEXTILE GMBH & CO KG
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