Patent ID: 6655285
Filing Date: 2003-12-02
Classification: B41F,B41P

Abstract:
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.