Yarn winding apparatus

Claim 2

In a winding apparatus of the type which includes a frame, a drive roll and a plurality of rotatable chucks having yarn supports thereon mounted to said frame for alternate movement into surface driven engagement with said drive roll around which yarn normally advances in a path to a package support on a driven chuck, a device for initiating winding the yarn on a driven support and severing the yarn while it is still advancing to a full package on another chuck said device comprising: an elongated member provided with means for cutting yarn adjacent one of its ends, said member having a passage therethrough, said chucks having tubular shafts, there being a port in said frame; means mounting said member for swinging movement of said one end to a position adjacent said driven chuck, said cutting means and one end of said passage being in alignment with said path and the tubular shaft of the driven chuck being in communication with the other end of said passage and said port when said one end of said member is at said position; and means coupled with said member for swinging it to said position then actuating said cutting means and threading the severed yarn through said passage, said shaft and said port.

Claim 3

The apparatus as defined in claim 1, said means for threading the severed yarn through the passage, the shaft and the port being an air transport system comprising an air supply nozzle on the opposite side of the yarn path from said one end of the passage and a waste collecting system in communication with said port.

Claim 4

The apparatus as defined in claim 1, including centrifugal clamping means coupled with said shaft for holding the severed yarn within the tubular shaft during a part of the formation of the package.

Claim 5

The apparatus as defined in claim 1, including cooperating means on said shaft and said port for severing the yarn during said alternate movement.

Claim 6

In a winding apparatus of the type which includes a frame, a drive roll, a pair of rotatable chucks having yarn package supports thereon mounted to said frame for alternate movement into surface driven engagement with said drive roll and a traverse guide through which yarn normally advances around the drive roll to a package support on a driven chuck, a device for initiating winding the yarn on the driven support and severing the yarn while it is still advancing in a path to a full package on the other chuck, said device comprising: an elongated housing provided with a means for cutting yarn adjacent one of its ends, said housing having a passage therethrough, said chucks having tubular shafts, there being a port in said frame; means mounting said housing for swinging movement of said one end to a position adjacent said driven chuck, said cutting means and one end of said passage being in alignment with said path, the tubular shaft of a driven chuck being in communication with the other end of said passage and said port when said one end of said housing is at said position; means coupled to said housing for sequentially swinging it to said position and actuating the cutting means for severing the yarn; an air transport system for threading the severed yarn through said passage, said shaft and said port; and clamping means coupled with said shaft for holding the severed yarn within the shaft during initial formation of a package.

Claim 7

In a winding apparatus of the type which includes a frame, a drive roll, a pair of rotatable chucks having yarn package supports thereon mounted to said frame for alternate movement into surface driven engagement with said drive roll and a traverse guide through which yarn normally advances around the drive roll to a package support on a driven chuck, a device for initiating winding the yarn on the driven support and severing the yarn while it is still advancing in a path to a full package on the other chuck, said device comprising: an elongated housing provided with a means for cutting yarn adjacent one of its ends, said housing having a passage therethrough, said chucks having tubular shafts, there being a port in said frame; means mounting said housing for swinging movement of said one end to a position adjacent said driven chuck, said cutting means and one end of said passage being in alignment with said path, the tubular shaft of a driven chuck being in communication with the other end of said passage and said port when said one end of said housing is at said position; means coupled to said housing for sequentially swinging it to said position and actuating the cutting means for severing the yarn; an air transport system for threading the severed yarn through said passage, said shaft and said port; and clamping means coupled with said shaft for holding the severed yarn within the shaft during initial formation of a package.

Claim 8

The apparatus as defined in claim 5, including cooperating means on said shaft and said port for severing the yarn at said port during said alternate movement.

Claim 9

The apparatus as defined in claim 5, including means for maintaining tension on said yarn advancing to a full package on another chuck.

Claim 10

The apparatus as defined in claim 5, said chucks having rotatable tubular shafts.

Claim 11

The apparatus as defined in claim 5, including guide means mounted in the passage of the housing.