Surface winder with pinch cutoff
AssigneePaper Converting Machine Company
InventorsJoseph A. Blume, James E. Hertel, Richard J. Vigneau, Thomas J. Daul
Life of this patent
Estimating the term…
Abstract
A surface winder includes first and second winding rolls for winding a web on a center member, a stationary surface spaced from the first winding roll for rolling a center member on the stationary surface, and a pinch pad for pinching the web against a pinch surface upstream of the center member and thereby severing the web. The first winding roll is provided with a high friction surface, and only a short length of web needs to be stretched between the pinch surface and the first roll to tension and sever the web. The severed web is wound on the center member as the center member rolls on the stationary surface.
Claims42
A surface winder for winding a web on a center member comprising:
- a frame,
- means on the frame for supplying an elongated moving web from an upstream direction to a downstream direction,
- a first roll rotatably mounted on the frame,
- a second roll rotatably mounted on the frame and spaced from the first roll,
- a web pinching surface mounted on the frame adjacent the first roll and upstream of the first roll,
- a stationary surface mounted on the frame downstream from the web pinching surface and spaced from the first roll, and
- a pinch arm movably mounted on the frame and having a portion thereof engageable with the web pinching surface for pinching the web against the pinching surface.
A surface winder for winding a perforated web on a center member comprising:
- a frame,
- means on the frame for supplying an elongated moving web having a plurality of uniformly spaced transverse perforations, the web moving from an upstream direction to a downstream direction,
- a first roll rotatably mounted on the frame and having a high friction surface which is engageable with the web to substantially eliminate slippage between the web and the first roll,
- a second roll rotatably mounted on the frame and spaced from the first roll,
- a stationary pinch bar mounted on the frame adjacent the first roll and upstream of the first roll,
- a stationary surface mounted on the frame adjacent the second roll and upstream of the second roll, the stationary surface being spaced from the first roll by a distance which is less than the diameter of the center member,
- a pinch arm rotatably mounted on the frame and having a portion thereof engageable with a portion of the pinch bar for pinching the web between the pinch arm and the pinch bar, and
- means for inserting a center member between the first roll and the stationary surface, whereby pinching the web between the pinch arm and the pinching surface tensions and severs the web and the web is transferred to the center member as it rolls on the stationary surface.
A method of winding a web on a center member comprising the steps of:
- providing first and second spaced-apart rotatable rolls,
- providing a stationary pinch surface adjacent the first roll,
- feeding a web from an upstream direction to a downstream direction past the pinch surface and into contact with the first roll,
- providing a stationary lower surface spaced from the first roll and the web,
- pinching the web against the pinch surface to tension and sever the web, and
- introducing a center member between the portion of the web which is in contact with the first roll and the stationary lower surface whereby the center member rolls on the stationary lower surface and the web is transferred to the center member.
A core delivery apparatus for a rewinder comprising:
- a frame,
- a conveyor movably mounted on the frame,
- a core pusher mounted on the conveyor for movement therewith,
- a pin on the core pusher adapted to pierce a core, and
- means for delivering a core to the conveyor whereby the pin can pierce the core and the core pusher can move the core with the conveyor.
A method of winding a web on a center member comprising the steps of:
- providing first and second spaced-apart rotatable rolls,
- providing a pinch surface adjacent the first roll,
- feeding a web from an upstream direction to a downstream direction past the pinch surface and into contact with the first roll,
- providing a stationary surface spaced from the first roll,
- pinching the web against the pinch surface by a rotating pinch arm to tension and sever the web, and
- introducing a center member between the first roll and the stationary surface whereby the center member rolls on the stationary surface and the web is transferred to the center member.
A surface winder for winding a web on a center member comprising:
- a frame,
- a first roll rotatably mounted on the frame,
- a second roll rotatably mounted on the frame and spaced from the first roll,
- means on the frame for supplying an elongated moving web from an upstream direction to a downstream direction, a portion of the web contacting the first roll,
- a web pinching surface mounted on the frame adjacent the first roll and upstream of the first roll,
- a pinch arm movably mounted on the frame and having a portion thereof engageable with the web pinching surface for pinching the web against the web pinching surface and thereby severing the web, and
- means for pressing a center member against the portion of the web which contacts the first roll after the web is severed.
Dependencies are inferred from the claim text.