US 5,461,881 AGranted

Arrangement for driving a warp beam

AssigneeKarl Mayer Textilmashinenfabrik GmbH

InventorsUlrich Handel, Joachim Kirchner

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Abstract

An arrangement for driving a warp beam employs a stepless adjustable drive (7) whose coupling element (8) is displaced by a setting member (11). The setting member (11) is controlled-by a computer (10) which provides an input arrangement (17) for the take-up of data of a predetermined thread provision (F); as well as data on the machine, the stepless adjustable drive (7) and the beam (3). The data includes a wind variable size (actual wind number w.sub.a), and data characterizing the actual wind circumference (U.sub.a). The computer has a calculating segment (18) and an output (19). With such an arrangement, the coupling element (8) can be brought into the correct target position, even before the start of the machine. The computing means can also serve as part of the control arrangement during the running of the machine.

Claims22

Dependent claims

Arrangement for driving a warp beam from a main shaft of a machine via a stepless adjustable drive having a displaceable coupling element for controlling step-up in said stepless adjustable drive, comprising:

a setting means for displacing the coupling element in a direction for maintaining a predetermined thread provision rate, the setting means comprising:
(a) a setting member having a control input and adapted to adjust said coupling element, said setting member being operable to adjust said coupling element in response to signals applied to said control input, and (b) a computing means including:
(i) an input arrangement for receiving data signifying a prescribed thread provision rate as well as predetermined operating parameters of the machine, the stepless adjustable drive and the beam, which include a winding variable related to actual wind diameter, and (ii) a calculating segment for calculating the desired position of the coupling element from values received by said input arrangement to produce a signal output signifying an appropriate position signal for the setting member, said computing means being coupled to said setting member to apply said signal output to said control input.

Dependencies are inferred from the claim text.