Cutting system, and a method for cutting a web or sheet of material
AssigneeTetra Laval Holdings & Finance S.A.
InventorsUlf Mårtensson, Seppo Bergman, Dan Robertsson
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a cutting system for providing holes in a core material layer. The cutting system has a cutting tool having a cutting knife configured to cut through the core material layer, and an anvil having a rigid support surface for receiving the cutting knife of the cutting tool. The cutting system further has an elastic member that is positioned to absorb at least a part of a force applied when the cutting tool is pressed against said anvil.
Claims15
A cutting system for providing holes in a core material layer, comprising:
- a cutting tool having a cutting knife configured to cut through the core material layer, wherein a cutting edge of the cutting knife extends to a common plane;
- an anvil having a rigid support surface configured to receive the cutting knife of the cutting tool;
- wherein the cutting system further comprises an elastic member positioned to absorb at least a part of a force applied when the cutting tool is pressed against said anvil;
- wherein the rigid support surface of said anvil is arranged onto said elastic member;
- wherein the cutting knife is arranged on an outer surface of a cutting roller and the anvil is arranged on an outer surface of an anvil roller;
- and
- wherein the rigid support surface of said anvil comprises a radius with a center that does not coincide with a center of a radius of the outer surface of the anvil roller.
A method for providing a core material layer with a through hole, comprising:
- arranging a core material layer onto a rigid support surface of an anvil that is arranged on an outer surface of an anvil roller, the anvil positioned over only a portion of a circumference of the anvil roller and the rigid support surface of the anvil arranged onto an elastic member;
- and
- pressing a cutting knife of a cutting tool that is arranged on an outer surface of a cutting roller against said core material layer such that the cutting knife comes into contact with the rigid support surface of the anvil when the core material layer is cut, whereby the anvil elastically deforms when the cutting knife comes into contact with the rigid support surface, and wherein a cutting edge of the cutting knife extends to a common plane.
Dependencies are inferred from the claim text.