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Offenend-spinnmaschine

A spinning machine and free-end technology, applied in the field of free-end spinning machines, can solve the problems that the bobbin diameter cannot be taken into account, and the operating parameters cannot be adjusted separately.

Active Publication Date: 2010-02-24
SAURER GERMANY GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in such textile machines it is not possible to individually adjust the operating parameters of the individual workstations on the basis of a central drive, in particular not to take into account the correspondingly occurring package diameters

Method used

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Examples

Experimental program
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Embodiment Construction

[0022] figure 1 An open-end rotor spinning machine 1 is schematically shown in front view with so-called end frames 2, 3, which are connected by a plurality of continuous access channels as known and therefore not further illustrated , the access channel is, for example, a negative pressure channel for supplying spinning negative pressure to the spinning device, an electrical channel of a yarn monitoring device and / or a bus system, and a cable channel for supplying power to a plurality of workstations 4 . These access channels are to a certain extent the "backbone" of the textile machine, on which the yarn forming devices or cross-winding devices of the textile machine 1 can be placed, said yarn forming devices or cross-winding devices forming multiple Common station 4 and a pilot station 10. For example, the vacuum supply of the textile machine (not shown) itself, the electrical energy supply and the central control unit 5 of the textile machine 1 are arranged on the end fra...

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PUM

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Abstract

The invention relates to an open-end spinning machine (1) having a plurality of workstations (4), each comprising a spinning device (12) for producing a thread (17) and a bobbin device (18) for producing a cross-wound bobbin (19), wherein the bobbin device (18) has a bobbin frame (39) for rotatably holding a cross-wound bobbin (19), a thread changing device (22), and a defined controllable bobbindrive device (23). According to the invention, at least one pilot workstation (10) is provided, comprising a thread tension sensor (9) located between a thread drawing-off device (20) and the thread changing device (22), and an associated control and evaluation device (11), which is functionally connected to the bobbin drive device (23) of the pilot workstation (10) and is designed so that, depending on signals from the thread tension sensor (9), the bobbin drive device (23) can be regulated such that during a bobbin travel on the cross-wound bobbin (19), a nearly constant winding tension is ensured. Additionally, control values and / or control curves are created over the bobbin travel by the control and evaluation device (11) based on the controlled variables for the bobbin drive device (23), a defined control of the bobbin drive devices (23) of the plurality of workstations (4) not designed as pilot workstations of the open-end spinning machine taking place during each winding processby means of said control values and / or control curves.

Description

technical field [0001] The invention relates to an open-end spinning machine according to the preamble of claim 1 . Background technique [0002] Open-end spinning machines have been disclosed in various embodiments and are described exhaustively in various patent documents, eg German patent DE4001255A1. [0003] In connection with such textile machines, it has also been known for a long time that only when certain winding parameters are met during the winding process can a high-quality cross-wound bobbin be achieved, which means that the cross-winding The winding bobbins are not only aesthetically pleasing but also have good unwinding properties. During the entire winding process of the cross-wound bobbin, for example, it should be wound with a constant winding tension, which should be neither too high nor too low. It is known that, from the relationship between the yarn delivery speed and the winding speed, a winding tension, which is also referred to as draft tension in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01H4/00D01H4/42D01H13/14D01H13/32
CPCD01H4/00D01H4/42D01H13/32D01H13/14
Inventor 古德龙·多威赫姆·厄尔
Owner SAURER GERMANY GMBH & CO KG
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