Cone section warping machine and method of warping
AssigneeBenninger AG
InventorsMarkus Beerli, Hans-Peter Zeller
Life of this patent
Estimating the term…
Abstract
Separate drive motors (30, 35) for the positioning of the warping carriage (25) in the X-, respectively the Y-direction, are provided on a cone section warping machine. In addition to that, separate servo signals for both the servo motors (30, 35) are generated, whereby not only the absolute value of the servo signals but also their relationship to one another is stored and is able to be corrected through correction values. For the correction, a program control device (62) and/or a regulator (67), respectively correction circuits (64, 66), are provided.
Claims15
A cone section warping machine for winding yarns drawn off a bobbin creel onto a rotating warping drum, comprising
- a warping reed laterally slidable in an X-direction parallel to the warping drum, for bringing yarns from the creel together to form a yarn strip,
- a deflection roll movable in a Y-direction toward and away from the warping drum, for pressing the yarn strip against the warping drum as the strip is wound onto the warping drum,
- an X-feed device for moving the warping reed in the X-direction, to traverse the thread strip during winding,
- a Y-feed device for moving the deflection roll in the Y-direction,
- the X-feed device including a first motor operating at an X-feed rate,
- the Y-feed device including a second motor operating at a Y-feed rate and operative independently of the first motor, and
- controlling means for generating proportional actuation signals for each of the motors independently, causing a drive ratio X:Y of the X- and Y-feed rates in the X- and Y-directions to be varied during operation of the machine.
A method of winding yarns in the form of strips onto a rotating warping drum, comprising steps of
- drawing yarns off a bobbin creel and through a warping reed to form a yarn strip,
- passing the yarn strip onto the rotating drum while pressing the strip against the warping drum with a pressure roll, thus creating a strip winding on the drum,
- generating a reed control signal for reciprocating the warping reed in a first direction parallel to the drum to move the yarn strip across the drum as it is wound, and
- generating a pressure roll control signal for moving the pressure roll in a direction away from the drum to control winding thickness of the yarn strip, while
- regulating an interrelationship of said control signals by means of feedback signals to indicate positions of said reed and said pressure roll relative to said drum.
Dependencies are inferred from the claim text.