Apparatus for semi-automating switching operations of web offset printing press
AssigneeKomori Corporation
InventorKazunori Saito
Life of this patent
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Abstract
An offset rotary printing press for semi-automating switch operations has a first switch for reducing an ink amount to a basic ink layer thickness distribution by an ink supplement device 800 and web rolls 101 and 102 are exchanged and succeeded by continuous supply device 100, a second switch for operating printing plate change device 207, 208 and folding device status switch in the folding device 700, and a third switch for activating ink supplement device 800 that overlaps an ink layer thickness distribution corresponding to the next printing.
Claims10
An apparatus for semi-automating switching operations of a web offset printing press, comprising:
- web continuous supplement means for connecting a web of a new web roll with a web of an old web roll to supply the web successively;
- printing plate change means for changing a printing plate supported on a plate cylinder;
- folding device status switching means for switching a folding device status of a folding machine in accordance with a folding variation of a next printing;
- ink supplement means for reducing ink amount to a basic ink layer thickness distribution and overlapping an ink layer distribution corresponding to the next printing on the basic ink layer thickness distribution;
- and
- at least one switch for changing a previous printing to the next printing,
- wherein the ink amount is reduced to the basic ink layer thickness distribution by said ink supplement means and each position of said new and old web rolls are changed and said web of said new web roll is connected with said web of said old web roll by said web continuous supplement means in accordance with a first signal from said switch,
- said printing plate change means and said folding device status switching means in said folding machine are operated in accordance with a second signal from said switch, and
- said ink supplement means for overlapping an ink layer thickness distribution corresponding to said next printing is operated in accordance with a third signal from said switch.
A process in an apparatus for semi-automating switch operations of a web offset printing press including:
- web continuous supplement means for connecting a web of a new web roll with a web of an old web roll to supply the web successively,
- printing plate change means for changing a printing plate supported on a plate cylinder,
- folding device status switching means for switching a folding device status of a folding machine in accordance with a folding variation of a next printing, and
- ink supplement means for reducing ink amount to a basic ink layer thickness distribution and overlapping an ink layer distribution corresponding to the next printing on the basic ink layer thickness distribution, and
- at least one switch for changing a previous printing to the next printing,
- said process comprising the steps of:
- reducing an ink amount to the basic ink layer thickness distribution by said ink supplement means and changing a position of said web rolls and connecting said webs of said web rolls by said web continuous supplement means in accordance with a first signal from said switch;
- operating said printing plate change means and said folding device status switching means in said folding device in accordance with a second signal from said switch;
- and
- operating said ink supplement means for overlapping an ink layer thickness distribution corresponding to said next printing in accordance with a third signal from said switch.
Dependencies are inferred from the claim text.