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Method for Optimizing Underpressure in Vacuum Units of Textile Machines for Manufacturing Cross-Wound Packages

A technology for cross-winding bobbins and vacuum devices, which can be used in textiles and papermaking, transportation and packaging, thin material handling, etc., and can solve problems such as increasing vacuum requirements

Active Publication Date: 2018-05-01
RIETER AUTOMATIC WINDER GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The disadvantage of this method according to the prior art is that the increased vacuum requirement is maintained until the event is over

Method used

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  • Method for Optimizing Underpressure in Vacuum Units of Textile Machines for Manufacturing Cross-Wound Packages
  • Method for Optimizing Underpressure in Vacuum Units of Textile Machines for Manufacturing Cross-Wound Packages

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] figure 1 The event E curve plotted against time t at the station is shown. Event E is in this example a yarn break and yarn break repair on the winder. A yarn break occurs at time 1. The cross-wound bobbin on which the yarn is wound is lifted by the bobbin drive roller driving it and braked for a time b. When at moment 2, the cross-winding bobbin is stationary, the switchover to broken yarn repair begins. At moment 3, the suction nozzle is in position to pick up the veil from the cross-winding bobbin, while the clamping bobbin under negative pressure catches the ground yarn from the feed bobbin in the unwinding position. Period s1 includes all sub-processes up to the end of the event, that is to say the end of the yarn connection cycle. Only during period s2 is there a higher vacuum requirement for successful yarn capture. Signaling at time 4 indicates that the veil has been successfully captured and no higher negative pressure is required. In the period s3, both ...

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PUM

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Abstract

The invention relates to a method of optimizing internal negative pressure of a vacuum device of a textile machine for making cross wound bobbins. The vacuum device has a suction machine group. The textile machine comprises a plurality of workstations with diversified vacuum demands. To satisfy the vacuum demands, the negative pressure should not be lowered to a specified level satisfying a basic demand. The suction power of the suction machine group is adjusted through an adjusting mechanism in a way to provide a negative pressure greater than the specified level as a working requirement when a yarn with higher vacuum demands is reported to be broken during a yarn connecting period or a yarn is cut. According to the embodiments, a yarn head on the side of a winding bobbin is successfully found through the sensor. A success signal is sent to the adjusting mechanism of the vacuum device. Later, a request for higher vacuum demands for related workstation is deleted in the adjusting mechanism.

Description

technical field [0001] The invention relates to a method for optimizing the underpressure in a vacuum device with a suction unit of a textile machine for producing cross-wound bobbins, said textile machine comprising a plurality of stations with varying vacuum requirements, wherein in order to meet the vacuum requirements , the negative pressure should not drop below a determined level that satisfies the basic needs, and the suction power of the suction unit is regulated via the regulating mechanism in such a way that when notified that its repair occurs during the splicing cycle resulting in a higher vacuum When the demanded yarn is broken or the yarn is cut, a negative pressure increased by a predetermined value is provided as a work demand. Background technique [0002] Textile machines for producing cross-wound bobbins, such as winders, are known for a long time and generally consist of a plurality of identical stations connected in series next to one another. [0003] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H54/88B65H69/00
CPCB65H54/707B65H2701/31D01H11/00
Inventor T·福歇
Owner RIETER AUTOMATIC WINDER GMBH
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