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Thread laying drive, especially for working station of textile machine

A motor drive, drive technology, applied in the direction of thin material handling, delivery of filamentous materials, transportation and packaging, etc., can solve problems such as unresolved

Inactive Publication Date: 2011-05-25
SAURER GERMANY GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the actual angular position of the yarn guide can be determined quickly and accurately with the disclosed angular sensors, the above-mentioned problems of the previously used open-loop or closed-loop control systems have not been solved

Method used

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  • Thread laying drive, especially for working station of textile machine
  • Thread laying drive, especially for working station of textile machine

Examples

Experimental program
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Embodiment Construction

[0061] FIG. 1 shows a block diagram for a control structure of a yarn displacement drive with a state observer 12 . In this case, the predetermined angular position From the desired value sensor 1 directly enters the controller 4 as the desired variable 2 . This predetermined angular position Also used as an input variable in part of Model 3. Using the partial model 3, the real control section 10 comprising the output stage of the yarn guide driver and other electromechanical yarn displacement drives is described as an ideal control section. Therefore, further desired variables 2, namely the corresponding torque (M_desired), the required displacement current (I_desired), the corresponding angular velocity (ω_desired) and the corresponding angular acceleration (ω_point_desired) of the yarn guide, can be generated as parameters of the controller 4 Other input variables. Within the controller 4 , each input desired variable 2 can be individually weighted by means of a respe...

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PUM

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Abstract

The invention relates to a mechanism for controlling a thread displacement for a textile machine working station comprising a thread guide and an electric motor individual drive provided therefor and an angle sensor for determining an actual angular position (11) of a thread guide and a controller (4) for predefining at least one correcting variable (9) for the output stage of the electric motor individual drive for driving the thread. The inventive mechanism for controlling a thread displacement makes it possible to obtain high displacing frequencies by preventing displacement errors, wherein the controller (4) comprises a multivariable control system for accurately controlling at least one correcting variable (9), and thereby controlling the actual angular position (11) of the thread guide. A status monitor (12) for accurately determining the internal conditions such as in a real control section (10) and for transmitting them to the controller is provided.

Description

technical field [0001] The invention relates to a yarn displacement drive, in particular for a textile machine workstation, comprising a yarn guide, a single motor drive provided therefor, for detecting the actual angular position of the yarn guide an angle sensor and a controller by which at least one control variable (u) of the output stage of said single motor drive can be predetermined to drive said yarn guide. Background technique [0002] It is known, for example, from document DE 198 58 548 A1 that, for the production of textile bobbins, the relevant textile bobbin is rotated on the one hand and the yarn running onto the bobbin is traversed along the bobbin axis on the other hand. The traversing of the yarn takes place, for example, by means of finger yarn guides, also called scrapers. In order to generate a specific or predetermined winding configuration within the bobbin to be produced, the drive of the bobbin has to be separated from the drive of the yarn guide. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H54/28
CPCB65H54/2827B65H54/2884B65H2701/31
Inventor 弗朗茨-约瑟夫・弗拉姆
Owner SAURER GERMANY GMBH & CO KG
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