Drum inter-storage of yarn at an operating unit of a textile machine and method of control for
AssigneeRieter CZ s.r.o.
InventorsJiri Sloupensky, Vladimir Kluson, Evzen Pilar
Life of this patent
Estimating the term…
Abstract
A drum inter-storage of yarn for a textile machine and associated method of control includes a driven rotary drum with a compensatory rotary arm. The rotary drum is coupled with a first drive formed by an electric motor, and a compensatory rotary arm is coupled with a second drive formed by an electric motor, whereby both motors are connected to a control device. The invention also relates to a method of controlling the drum inter-storage of yarn at an operating unit of a textile machine.
Claims5
A method for controlling a drum inter-storage for yarn at an operating unit of a textile machine, wherein the operating unit includes a spinning unit for production of yarn;
- a winding device for winding the produced yarn on a cross bobbin;
- a draw-off mechanism operably arranged between the spinning unit and the winding device;
- the drum inter-storage operably arranged between the draw-off mechanism and the winding device;
- the drum inter-storage having a driven rotary drum and a compensatory rotary arm, the method comprising:
- controlling rotation of the rotary arm with a drive that is independent of a drive for the rotary drum;
- during continuous yarn spinning, controlling rotation of the rotary arm with the independent drive as a function of rotation of the rotary drum such that a constant torque is developed in the yarn for creating a desired tension in the yarn during winding of the yarn on the cross bobbin;
- at transition from continuous yarn spinning to an intermediate state, controlling torque of the rotary arm independent of speed of rotation of the rotary drum.
Dependencies are inferred from the claim text.