US 5,871,168 A · Winding station of a textile machine for producing cheeses

Abstract

A winding station of a textile machine for producing cheeses is equipped with a device for pickup and transfer of a yarn from a cop to a splicer for joining to a yarn from a cheese, the pickup and transfer device comprising an air-blowing fitting, a pivot tube and a suction fitting connectable via a gripper tube to a suction source. The suction fitting is positioned outside of the normal yarn path and a yarn control device is arranged in front of the suction fitting in the area of the normal yarn path. A yarn end loosened from a spinning cop is pneumatically conveyed to the gripper tube and is threaded into the yarn control device by means of the pivoting of the gripper tube into an intermediate position and the simultaneous pivoting of the pivot tube into an operating position. If a yarn control signal is not present, no yarn splicing attempt is made and a fresh yarn pickup attempt is immediately started, i.e. the pivot tube and the gripper tube directly return into their yarn transfer or yarn pickup position.

Claims30

Dependent claims

A winding station in a textile machine for rewinding yarn from spinning cops onto yarn cheeses, the winding station comprising:

(a) a yarn splicing device for joining a yarn from a spinning cop with a yarn from a cheese,
(b) a gripper tube chargeable with suction air and manipulable to place the yarn from the spinning cop into the splicing device,
(c) a yarn end pick-up and transfer device disposed directly in the area of a spinning cop unwinding position of the winding station for picking up a leading end of the yarn from the spinning cop to be rewound and transferring the cop yarn end to the gripper tube,
(d) a yarn control and cutting device disposed in front of the yarn splicing device in a predetermined yarn path to cooperate with the yarn end pickup and transfer device, the yarn end pick-up and transfer device being adapted for threading the leading end of the yarn from the spinning cop into the yarn control and cutting device, and
(e) the yarn end pickup and transfer device comprising a suction fitting positioned outside the predetermined yarn path wherein the yarn control and cutting device is disposed forwardly of the suction fitting, the suction fitting and the gripper tube being selectively dockable with one another, and means for pneumatically loosening and transporting the leading end of the yarn from the spinning cop to the suction fitting, the yarn end pickup and transfer device being repeatably actuable for loosening and transferring the cop yarn end.

2 more elements

A winding station in a textile machine for rewinding yarn from spinning cops onto yarn cheeses, the winding station comprising:

(a) a yarn splicing device for joining a yarn from a spinning cop with a yarn from a cheese;
(b) a gripper tube chargeable with suction air and manipulable to place the yarn from the spinning cop into the splicing device;
(c) a yarn end pick-up and transfer device disposed directly in the area of a spinning cop unwinding position of the winding station for picking up a leading end of the yarn from the spinning cop to be rewound and transferring the cop yarn end to the gripper tube;
(d) a yarn control and cutting device disposed in front of the yarn splicing device in a predetermined yarn path to cooperate with the yarn end pickup and transfer device, the yarn end pick-up and transfer device being adapted for threading the leading end of the yarn from the spinning cop into the yarn control and cutting device;
(e) the yarn end pickup and transfer device comprising:
(i) a suction fitting positioned outside the predetermined yarn path wherein the yarn control and cutting device is disposed forwardly of the suction fitting, the suction fitting and the gripper tube being selectively dockable with one another,
(ii) means for pneumatically loosening and transporting the leading end of the yarn from the spinning cop to the suction fitting,
(iii) a pivot tube communicated with the pneumatic loosening means for receiving the loosened cop yarn end, and
(iv) a drive for pivoting the pivot tube between a yarn transfer position wherein the pivot tube is connected to the suction fitting to transfer the cop yarn end thereto and an operating position wherein the pivot tube is positioned in the area of the predetermined yarn path to cooperate with the gripper tube for placing the cop yarn into the yarn control and cutting device;
and
(f) wherein the yarn end pickup and transfer device is repeatably actuable for loosening and transferring the cop yarn end.

8 more elements

Dependencies are inferred from the claim text.

Winding station of a textile machine for producing cheeses

Life of this patent

Winding station of a textile machine for producing cheeses

Life of this patent

Abstract

Claims30