Method and device for controlling automatic printing plate changing means and folding device status switching device
AssigneeKomori Corporation
InventorsHiroyuki Nagano, Tomoo Kaneta
Life of this patent
Estimating the term…
Abstract
A control device has a printing plate changing unit for changing a printing plate supported on a plate cylinder, and a unit for switching a folding device status of a folding machine in accordance with a folding device status in the next printing. The control device operates the printing plate changing unit and the means for switching the folding device status of the folding device simultaneously in order to shorten the total operation time.
Claims17
A device for automatically changing a printing plate and switching a folding device status in a web printing press, comprising:
- an input unit;
- a printing plate changing unit that changes a printing plate supported on a plate cylinder in at least one printing unit;
- a folding device status switching unit that switches a folding device status of a folding machine in accordance with a folding device status corresponding to a next printing job;
- a dancer device located between a sheet supply device and the folding machine for removing slackness in a web caused by rotation of said plate cylinder in said at least one printing unit;
- and,
- a control device that activates said printing plate changing unit and said folding device status switching unit as well as said dancer device in response to an operation of said input unit;
- and,
- whereby said printing plate changing unit, said folding device status switching unit and said dancer device operate in parallel so as to reduce total operating time of the printing press when changing from a previous printing job to said next printing job.
A method of controlling an automatic printing plate changing unit and a folding device status switching unit in a web printing press, comprising:
- operating an input unit for changing a printing plate and a folding condition;
- changing a printing plate supported on a plate cylinder in each of a plurality of printing units in response to said operating step;
- switching a folding device status switching unit that switches a folding device status of a folding machine in accordance with a folding device status corresponding to a next printing job and,
- also activating a dancer device located between a sheet supply device and the folding machine for removing slackness in a web caused by rotation of the plate cylinder in each of the printing units;
- said steps of changing, activating and switching occurring in parallel so as to reduce total operation time of the printing press when changing from a previous printing job to said next printing job.
Dependencies are inferred from the claim text.