Thread laying drive, especially for working station of textile machine

Abstract

The invention provides a mechanism for controlling the displacement of a yarn, in particular for a workstation of a textile machine, comprising a yarn guide, a single motor drive provided therefor, for determining the actual angular position (11) of the yarn guide ( f_real) and a controller (4) for predetermining at least one correction variable (9)(u) of the output stage of said single motor drive to drive the yarn. The inventive mechanism for controlling the displacement of the yarn allows a higher frequency of displacement by preventing displacement errors, wherein the controller (4) includes precise control of at least one correction variable (9)(u) to control said guide Multivariable control system for the real angular position (11) (f_real) of the yarn carrier. A state monitor (12) is provided for accurately determining internal states such as in the actual control section (10) and communicating them to the controller.

Description

technical field [0001] The invention relates to a yarn displacement drive, in particular for a textile machine workstation, according to the preamble of claim 1 . 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 on 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. Through this decoupling of the required drives, precise windings or graded precision windings can be produced. Thus, this technical measure means that winding patterns on the bobbins that can cause serious problems later during unwinding are avoided. Such t...

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