Method for controlling a cutter and paper handling plant
AssigneeBoewe Systec GmbH
InventorBernd Hoepner
Life of this patent
Estimating the term…
Abstract
In a method for cutting a paper web during movement of the same for generating a plurality of individual sheets for processing by a paper handling plant, the paper web is driven at a high web speed. The cutter is driven to cut the moving paper web into the individual sheets. The paper web can be stopped between successive cuts in a controlled manner.
Claims19
A method for cutting a paper web during movement of the same for generating a plurality of individual sheets for processing by a paper handling plant, comprising:
- driving the paper web at a high web speed;
- and
- driving a rotary cutter to cut the moving paper web into the individual sheets;
- wherein the paper web runs continuously between two cuts;
- and
- wherein, in case of an event, the paper web can be stopped in a controlled manner prior to the next step.
A method for controlling a rotary cutter for cutting a printed paper web during movement of the same for generating a plurality of individual sheets for processing by a paper handling plant, comprising:
- feeding the printed paper web at a predetermined web speed;
- and
- driving the rotary cutter at a predetermined cutter speed;
- wherein prior to cutting the printed paper web for generating at least one predetermined individual sheet, a cutting instant for cross cutting the paper web is determined based on first information gathered from the printed paper web and/or from a job description, and based on second paper handling plant specific information;
- wherein the web speed and/or the cutter speed are adjusted such that the paper web is cut at the specific cutting instant for generating the at least one predetermined individual sheet, and
- wherein the paper web and the rotary cutter are stopped prior to reaching the determined cutting instant if a control signal indicates that a cut is undesired.
A computer program product comprising a computer program stored on a machine readable carrier for performing, when the computer program is executed on a computer or by a control, a method for cutting a paper web during movement of the same for generating a plurality of individual sheets for processing by a paper handling plant, comprising:
- driving the paper web at a high web speed;
- and
- driving a rotary cutter to cut the moving paper web into the individual sheets;
- wherein the paper web runs continuously between two cuts;
- and
- wherein, in case of an event, the paper web can be stopped in a controlled manner prior to the next step.
A paper handling plant for processing individual sheets in groups comprising one or several individual sheets, comprising:
- a paper web feed for feeding the paper web to the paper handling plant;
- a rotary cutter for cross cutting the paper web to generate the individual sheets for further processing in the paper handling plant;
- one or several processing stations subsequent to the rotary cutter;
- and
- a control that is effective to control the rotary cutter according to a method for cutting a paper web during movement of the same for generating a plurality of individual sheets for processing by a paper handling plant, the method comprising:
- driving the paper web at a high web speed;
- and
- driving a rotary cutter to cut the moving paper web into the individual sheets;
- wherein the paper web runs continuously between two cuts;
- and
- wherein, in case of an event, the paper web can be stopped in a controlled manner prior to the next step.
Dependencies are inferred from the claim text.