Web-fed rotary press
AssigneeMaschinenfabrik Wifag
InventorsGotz Stein, Noel McEvoy, Ernst Lehmann, Marcello Tarchini
Life of this patent
Estimating the term…
Abstract
A web-fed rotary press has an adjustable reel changer for accommodating printing material webs of different widths, a printing couple with printing cylinders, which can be engaged with one another to form printing stations, and an adjustable folder. The width of the reel changer and the positions of the printing cylinders and of components of the folder are adjusted automatically and in a mutually coordinated manner during the run of the press for changing over the production from a first printed product to a second printed product.
Claims18
A web-fed rotary press, comprising:
- an adjustable reel changer for accommodating printing material webs of different widths;
- cylinder pairs, each of said cylinder pairs including a printing cylinder and a plate cylinder and including means for changing a position of said printing cylinder from an inactive position to an engaged position with said printing cylinder engaging one of another printing cylinder and a counter cylinder to form a printing couple, each printing couple forming a printing station whereby a plurality of printing stations are provided;
- an adjustable folder;
- and
- automatic adjustment means for adjusting the width of said reel changer, for adjusting the position of at least one said printing cylinder to change the state of at least one printing couple from engaged to inactive or from inactive to engaged and changing components of the said folder automatically and in a mutually coordinated manner during the run of the press to change over the production from a first printed product to a second printed product.
A rotary offset printing press comprising:
- an adjustable reel changer capable of taking up a plurality of webs with different widths;
- a plurality of printing cylinders movable into contact with one another in printing areas to form printing groups;
- a plurality of plate cylinders, each of said plurality of printing cylinders being mechanically coupled with one of said plurality of plate cylinders;
- a plurality of drive means, each of said plurality of drive means separately driving a different one of said plurality of printing cylinders mechanically independently from other of said printing cylinders;
- adjustable folder means for receiving the webs from said printing cylinders;
- control means for automatically adjusting a width of said adjustable reel changer, for adjusting a position of said printing cylinders, and for adjusting components of said adjustable folder means in a mutually coordinated manner to change over production from a first printed product to second printed product during operation of the rotary offset printing press.
Dependencies are inferred from the claim text.