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Suction unit for service trolleys for open-end spinning machines

A spinning machine, free-end technology, applied in the field of rotor spinning machines, can solve the problems of energy consumption, complicated suction and distribution, etc.

Active Publication Date: 2017-06-06
SAVIO MACCHINE TESSILI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Suction distribution with auxiliary channels is complex and energy-intensive, especially for long machines

Method used

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  • Suction unit for service trolleys for open-end spinning machines
  • Suction unit for service trolleys for open-end spinning machines
  • Suction unit for service trolleys for open-end spinning machines

Examples

Experimental program
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Embodiment Construction

[0060] Such as image 3 As shown, the suction generating means comprise individual suction units 40, at least one for each carriage. Such a suction unit comprises a rotary aspirator provided with a rotor 41 driven by a motor 42 (shown in dashed lines) controlled to operate at a speed that varies periodically according to the demand of the suction mouth to be served. Work. According to a preferred embodiment of the invention, this rotor 41 is a centrifugal rotor driven by a brushless motor 42 driven according to frequency by a control unit 45 of the service trolley. The trolley receives the electrical energy required by the motor and other components of the trolley from the open-end spinning machine, and it does not receive a centralized suction service.

[0061] This technical solution makes it possible to vary the vacuum level required to capture the yarn ends and keep them under tension during the intervention cycle of the trolley.

[0062] Figure 4 is an example of the r...

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Abstract

Device for generating the required suction for the execution of the intervention cycles carried out by a service trolley at the spinning units of an open-end spinning machine consisting of a rotary aspirator placed on board the service trolley and driven by an electric motor controlled for operating with speeds periodically varied according to the needs of the suction mouths to be served in the intervention cycles.

Description

technical field [0001] The invention relates to open-end spinning machines, ie rotor spinning machines. An open-end spinning machine generally comprises a plurality of individual spinning units arranged on two fronts of the spinning machine, each spinning unit comprising a spinning rotor and a collecting unit, wherein the spinning rotor will Singularised fibers of the roving are made into twisted yarns, after quality control of the yarn by placing a yarn clearer between these two components, the collection unit winds the yarn on bobbins up to form a scroll. The spool is formed by pulling and winding the yarn on its surface, which is driven in rotation by an underlying roller on which the spool rests during formation. The yarn is wound in intersecting coils on the rotating reel thanks to the collection unit equipped with a yarn guiding device which distributes the yarn in an axial to-and-fro movement on the outer surface of the reel. Background technique [0002] The struc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01H4/08D01H4/48
CPCD01H4/50B65H54/26B65H54/707B65H2701/31
Inventor V·科卢西R·巴迪亚利M·切奥林
Owner SAVIO MACCHINE TESSILI
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