US 2023/0381992 A1 · Method of Cutting a Running Web

Abstract

A method of cutting a running web, including the steps of: training the web over a smooth peripheral surface of an anvil drum; rotating a blade that extends in an axial direction of the anvil drum about an axis of rotation that is parallel to the axis of the anvil drum; retaining the blade in a retracted position in which a cutting edge of the blade is spaced apart from the web on the anvil drum, the blade being retained against a biasing force of a pre-loading mechanism that biases the blade in a direction towards the axis of the anvil drum; and releasing the blade at a time calculated to assure that the blade will hit the web at a time when the blade passes through a plane that contains the axis of the anvil drum and the axis of rotation.

Claims16

Dependent claims

A method of cutting a running web, comprising the steps of:

training the web over a smooth peripheral surface of an anvil drum having an axis;
rotating a blade that extends in an axial direction of the anvil drum about an axis of rotation that is parallel to the axis of the anvil drum;
retaining the blade in a retracted position in which a cutting edge of the blade is spaced apart from the web on the anvil drum, the blade being retained against a biasing force of a pre-loading mechanism that biases the blade in a direction towards the axis of the anvil drum;
and
releasing the blade at a time calculated to assure that the blade will hit the web at a time when the blade passes through a plane that contains the axis of the anvil drum and said axis of rotation.

2 more elements

Dependencies are inferred from the claim text.

Method of Cutting a Running Web

Life of this patent

Method of Cutting a Running Web

Life of this patent

Abstract

Claims16