Winding device for synthetic threads

Claim 2

A winding head for the continuous winding at high velocity of freshly spun or stretched, synthetic polymer filaments onto a bobbin, which comprises rotatable chuck means having bobbingripping means for releasably gripping a bobbin, a drive roller for rotatably driving said bobbin and the winding thereon, bobbin drive-actuating means for bringing said drive roller and said bobbin into driving contact, releasable braking means for braking said chuck means, respective pneumatic means for operating each of the aforementioned means, and pneumatic control means having pneumatically-operated members which are (A) activated by a single pneumatic starting pulse generated by said pneumatic control means to (a) operate the pneumatic means of said bobbingripping means to grip a bobbin, (b) operate the pneumatic means for said bobbin drive-actuating means, and (c) operate the pneumatic means for the braking means to release said braking means and (B) activated by a single pneumatic stopping pulse generated by said pneumatic control means to (a'') operate the pneumatic means for the braking means to apply the braking means, and (b'') after the bobbin comes to a standstill, operate the pneumatic means for the gripping means to release said bobbingripping means.

Claim 3

A winding device as claimed in claim 1, and said pneumatic control means having a plurality of alternate means for providing said single starting pulse including manually operated means and means automatically operated when an empty spool is exchanged on said chuck in place of a full spool, and a plurality of alternate means for providing said single stopping pulse including manually operated means and at least one of thread monitoring means, means monitoring the winding on the spool, and timer means.

Claim 4

A winding head as claimed in claim 1, said bobbin drive-activating means embodying control means for moving said drive roller toward said bobbin at a decreasing velocity during travel of said drive roller to its position of driving contact with said bobbin.

Claim 5

A winding head as claimed in claim 1, said control means including program control means operatively associated with the bobbin drive by said drive roller to reduce the pressing force therebetween in program responsive to the size of the winding.

Claim 6

A winding head as claimed in claim 1, an additional drive means for the chuck means for starting rotation of the chuck and an empty bobbin thereon before contact of the bobbin and rotating drive roller, and pneumatic means for activating said additional drive means and operated by a manual switch.

Claim 7

A winding head as claimed in claim 1, additional drive means for rotatably driving said chuck means and the chuck and bobbin thereon, and means responsive to the rotational moment of said chuck means for automatically switching said additional drive means on and off.

Claim 8

A winding head as claimed in claim 1, an additional drive means for the chuck means for starting rotation of the chuck and an empty bobbin thereon before contact of the bobbin and rotating drive roller, and pneumatic means for activating said additional drive means and operated by a timer means.

Claim 9

A winding head for the continuous winding at high velocity of freshly spun or stretched, syntheric polymer filaments onto a bobbin, which comprises rotatable chuck means having bobbin-gripping means for releasably gripping a bobbin, a drive roller for rotatably driving said bobbin and the winding thereon, bobbin drive-actuating means for bringing said drive roller and said bobbin into driving contact, releasable braking means for braking said chuck means, respective pneumatic means for operating each of the aforementioned means, and pneumatic control means having pneumatically-operated members which are (A) activated by a single pneumatic starting pulse generated by said pneumatic control means to (a) operate the pneumatic means of said bobbin-gripping means to grip a bobbin, (b) operate the pneumatic means for said bobbin drive-actuating means, and (c) operate the pneumatic means for the braking means to release said braking means and (B) activated by a single pneumatic stopping pulse generated by said pneumatic control means to (a'') operate the pneumatic means for the braking means to apply the braking means, and (b'') after the bobbin comes to a standstill, operate the pneumatic means for the gripping means to release said bobbin-gripping means, said control means including sensing means for sensing the standstill state of said chuck and the bobbin thereon, and said bobbin gripping means being operatively associated with said sensing means to permit said bobbin-gripping means to release said bobbin only when said braking means brings said chuck means substantially to or actually at a standstill.

Claim 10

A winding head for the continuous winding at high velocity of freshly spun or stretched, syntheric polymer filaments onto a bobbin, which comprises rotatable chuck means having bobbin-gripping means for releasably gripping a bobbin, a drive roller for rotatably driving said bobbin and the winding thereon, bobbin drive-actuating means for bringing said drive roller and said bobbin into driving contact, releasable braking means for braking said chuck means, respective pneumatic means for operating each of the aforementioned means, and pneumatic control means having pneumatically-operated members which are (A) activated by a single pneumatic starting pulse generated by said pneumatic control means to (a) operate the pneumatic means of said bobbin-gripping means to grip a bobbin, (b) operate the pneumatic means for said bobbin drive-actuating means, and (c) operate the pneumatic means for the braking means to release said braking means and (B) activated by a single pneumatic stopping pulse generated by said pneumatic control means to (a'') operate the pneumatic means for the braking means to apply the braking means, and (b'') after the bobbin comes to a standstill, operate the pneumatic means for the gripping means to release said bobbin-gripping means, said control means including sensing means for sensing the standstill state of said chuck and the bobbin thereon, and said bobbin gripping means being operatively associated with said sensing means to permit said bobbin-gripping means to release said bobbin only when said braking means brings said chuck means substantially to or actually at a standstill.

Claim 11

A winding head as claimed in claim 8, said sensing means comprising a slotted diaphragm rotatable with the chuck, and air jet nozzle means directed toward said diaphragm to generate a signal by an air jet passing through said diaphragm to activate said chuck-operating means only when said diaphragm is substantially or actually at a standstill.

Claim 12

A winding head as claimed in claim 8, said sensing means being a mechanical means responsive to braking deceleration of said chuck means and operatively associated with said bobbin-gripping means.

Claim 13

A winding head as claimed in claim 10, said chuck means having a chuck shaft, said mechanical means comprising a member rotatably borne on the chuck shaft for relative rotation thereto, and spring means connecting said shaft and said member and urging said member against a stop surface rotatable with said chuck shaft to return said member to a position for activating said chuck-operating means as said braking means brings said chuck and the bobbin thereon substantially to a standstill.

Claim 14

A winding head as claimed in claim 10, said chuck means having a chuck shaft, said mechanical means comprising a member rotatably supported coaxially about said chuck shaft, and spring means yieldably restraining rotation of said member relative to said chuck shaft.

Claim 15

A winding head for the continuous winding at high velocity of freshly spun or stretched, synthetic polymer filaments onto a bobbin, which comprises pivotable chUck-supporting means bearing at least two chucks rotatably mounted thereon, said chucks being movable by said supporting means between a winding position and a bobbin-changing position, each chuck having bobbin-gripping means for releasably gripping a bobbin, a drive roller for rotatably driving the bobbin and the winding thereon which are in said winding position, bobbin drive-actuating means for bringing said drive roller and said bobbin into driving contact, releasable braking means for braking said chuck shaft, respective pneumatic means for operating each of the aforementioned means, and pneumatic control means having pneumatically-operated members which are (A) activated by a single pneumatic starting pulse to (a) operate the pneumatic means of said bobbin gripping means to grip a bobbin, (b) operate the pneumatic means for said bobbin drive-actuating means, and (c) operate the pneumatic means for the braking means to release said braking means for the bobbin the winding position, and (B) activated by a single pneumatic stopping pulse generated by said pneumatic control means to (a'') operate the pneumatic means for the braking means to apply the braking means, and (b'') after the bobbin comes to a standstill, operate the pneumatic means for the gripping means to release said bobbin-gripping means for the bobbin in the bobbin changing position.

Claim 16

A winding head for the continuous winding at high velocity of freshly spun or stretched, synthetic polymer filaments onto a bobbin, which comprises pivotable chUck-supporting means bearing at least two chucks rotatably mounted thereon, said chucks being movable by said supporting means between a winding position and a bobbin-changing position, each chuck having bobbin-gripping means for releasably gripping a bobbin, a drive roller for rotatably driving the bobbin and the winding thereon which are in said winding position, bobbin drive-actuating means for bringing said drive roller and said bobbin into driving contact, releasable braking means for braking said chuck shaft, respective pneumatic means for operating each of the aforementioned means, and pneumatic control means having pneumatically-operated members which are (A) activated by a single pneumatic starting pulse to (a) operate the pneumatic means of said bobbin gripping means to grip a bobbin, (b) operate the pneumatic means for said bobbin drive-actuating means, and (c) operate the pneumatic means for the braking means to release said braking means for the bobbin the winding position, and (B) activated by a single pneumatic stopping pulse generated by said pneumatic control means to (a'') operate the pneumatic means for the braking means to apply the braking means, and (b'') after the bobbin comes to a standstill, operate the pneumatic means for the gripping means to release said bobbin-gripping means for the bobbin in the bobbin changing position.

Claim 17

A winding head for the continuous winding at high velocity of freshly spun or stretched, synthetic polymer filaments onto a bobbin, which comprises pivotable chuck-supporting means bearing at least two chucks rotatably mounted thereon, said chucks being movable by said supporting means between a winding position and a bobbin-changing position, each chuck having bobbin-gripping means for releasably gripping a bobbin, a drive roller for rotatably driving the bobbin and the winding thereon which are in said winding position, bobbin drive-actuating means for bringing said drive roller and said bobbin into driving contact, releasable braking means for braking said chuck shaft, respective pneumatic means for operating each of the aforementioned means, pneumatic control means having pneumatically-operated members which are (A) activated by a single pneumatic starting pulse to (a) operate the pneumatic means of said bobbin gripping means to grip a bobbin, (b) operate the pneumatic means for said bobbin drive-actuating means, and (c) operate the pneumatic means for the braking means to release said braking means for the bobbin the winding position, and (B) activated by a single pneumatic stopping pulse generated by said pneumatic control means to (a'') operate the pneumatic means for the braking means to apply the braking means, and (b'') after the bobbin comes to a standstill, operate the pneumatic means for the gripping means to release said bobbin-gripping means for the bobbin in the bobbin changing position, additional drive means for rotating the chuck bearing an empty bobbin placed thereon in the bobbin-changing position, and coupling means activating said additional drive means upon movement of said empty bobbin into said winding position from said bobbin-changing position.

Claim 18

A winding head for the continuous winding at high velocity of freshly spun or stretched, synthetic polymer filaments onto a bobbin, which comprises pivotable chuck-supporting means bearing at least two chucks rotatably mounted thereon, said chucks being movable by said supporting means between a winding position and a bobbin-changing position, each chuck having bobbin-gripping means for releasably gripping a bobbin, a drive roller for rotatably driving the bobbin and the winding thereon which are in said winding position, bobbin drive-actuating means for bringing said drive roller and said bobbin into driving contact, releasable braking means for braking said chuck shaft, respective pneumatic means for operating each of the aforementioned means, pneumatic control means having pneumatically-operated members which are (A) activated by a single pneumatic starting pulse to (a) operate the pneumatic means of said bobbin gripping means to grip a bobbin, (b) operate the pneumatic means for said bobbin drive-actuating means, and (c) operate the pneumatic means for the braking means to release said braking means for the bobbin the winding position, and (B) activated by a single pneumatic stopping pulse generated by said pneumatic control means to (a'') operate the pneumatic means for the braking means to apply the braking means, and (b'') after the bobbin comes to a standstill, operate the pneumatic means for the gripping means to release said bobbin-gripping means for the bobbin in the bobbin changing position, additional drive means for rotating the chuck bearing an empty bobbin placed thereon in the bobbin-changing position, and coupling means activating said additional drive means upon movement of said empty bobbin into said winding position from said bobbin-changing position.