Flying punch for webs
AssigneeRiver Solutions, Inc.
InventorKenneth R. Wilkes
Life of this patent
Estimating the term…
Abstract
A punching station for a web includes a web transport system that operates to advance the web in a first direction at a first rate. A clamp intermittently grips a portion of the web to advance the portion in the first direction at a second rate. A punch is coupled to the clamp such that the punch moves in the first direction together with the clamp. A punch block cooperates with the punch. The punch block is coupled to the clamp such that the punch block moves in the first direction in unison with the clamp. A punch actuator causes the punch to penetrate the web and then to be withdrawn from the web while the web is gripped by the clamp.
Claims19
A method of punching a web which comprises:
- advancing the web in a first direction at a first rate;
- intermittently gripping a portion of the web;
- advancing the portion in the first direction at a second rate that differs from the first rate;
- moving a punch in the first direction at the second rate while gripping the portion;
- and
- punching the web with the moving punch while gripping the portion.
A punching station for a web which comprises:
- a web transport system that operates to advance the web in a first direction at a first rate;
- a clamp to intermittently grip a portion of the web and to advance the portion in the first direction at a second rate that differs from the first rate;
- a punch coupled to the clamp such that the punch moves in the first direction together with the clamp;
- a punch block that cooperates with the punch, the punch block coupled to the clamp such that the punch block moves in the first direction in unison with the clamp;
- a punch actuator to cause the punch to penetrate the web and then to be withdrawn from the web while the web is gripped by the clamp.
A punching station for a web which comprises:
- means for advancing the web in a first direction at a first rate;
- means for intermittently gripping a portion of the web;
- means for advancing the portion in the first direction at a second rate that differs from the first rate;
- means for moving a punch in the first direction at the second rate while gripping the portion;
- and
- means for punching the web with the moving punch while gripping the portion.
Dependencies are inferred from the claim text.