Device for feeding yarn to a textile machine
AssigneeBtsr International S.P.A.
InventorTiziano Barea
Life of this patent
Estimating the term…
Abstract
A device for feeding yarn to a textile machine, including a main body defining an entry portion and an exit portion for yarn; a rotatable drum for winding the yarn originating from the entry portion and a motor connected to the drum for rotating the drum; a control member active at least on the motor to regulate its torque and velocity; exit portion being selectively switchable between a first configuration in which it defines a free exit section for the yarn, through which the exiting yarn defines a closed path about a rotation axis of the drum, and a second configuration in which it defines a limited exit section, through which the exiting yarn defines an open path.
Claims18
A device for feeding yarn to a textile machine, Comprising:
- a main body defining an entry portion and an exit portion for yarn;
- a rotatable drum for winding said yarn originating from said entry portion and a motor connected to said drum for rotating said drum;
- a control member active at least on said motor to regulate the motor's torque and velocity;
- said exit portion being selectively switchable between a first configuration in which said exit portion defines a free exit section for the yarn, through which the exiting yarn defines a closed path about a rotation axis of the drum, and a second configuration in which said exit portion defines a limited exit section, through which the exiting yarn defines an open path;
- said control member controlling and regulating the velocity of said motor for the purpose of maintaining a stock of yarn on the drum when in the first configuration and instead maintaining the tension constant when in the second configuration.
Dependencies are inferred from the claim text.