Abstract:
A printing unit (1) comprises a first roller (2) and a second roller (3) provided substantially parallel and facing with each other for transport of printing sheets between the first roller (2) and the second roller (3). The first roller (2) is rotationally mounted at only one end (10) of the first roller (2) and wherein this one end (10) is mounted to a deflector (9). The deflector (9) comprises a connection (11) to a support (12) for resiliently changing the angle of the first roller (2) relatively to the second roller (3) by bending the connection (11).
Abstract:
The invention concerns in general the technology of automatic maintenance operations in printing and package manufacturing machinery. Especially the invention concerns the task of maintaining smooth and reliable operation of a coater that on a manufacturing line comes after a sheet-fed printer. Th invention relates to a cleaning arrangement for a coater that comprises a plate cylinder (101), the cleaning arrangement comprising: a cleaning web (202), a tangential moving mechanism (203, 204) configured to controllably move said cleaning web (202) in at least one direction in a plane defined by said cleaning web (202), a radial moving mechanism (205, 302) configured to controllably move said cleaning web (202) in at least one direction out of said plane, and a controller (501) coupled to said tangential and radial moving mechanisms (203-205, 302), said controller (501) being configured to control the moving of said cleaning web (202) in conformity with input signals received by said controller (501).
Abstract:
A coating unit is located after a sheet-fed digital printer on a manufacturing line. As a response to a workpiece entering the coating unit from the printer, coating substance is dosed (203) onto a plate cylinder (101), and said plate cylinder (101) is rotated to transfer said coating substance onto the workpiece, which is then transferred further on the manufacturing line. As a response to a first time limit expiring after transferring said workpiece further without a subsequent work- piece entering the coating unit, the rotation of the plate cylinder (101) is stopped.
Abstract:
A cleaning arrangement for a coater that has a plate cylinder, the cleaning arrangement having a cleaning web, a tangential moving mechanism configured to controllably move the cleaning web in at least one direction in a plane defined by the cleaning web, a radial moving mechanism configured to controllably move the cleaning web in at least one direction out of the plane, and a controller coupled to the tangential and radial moving mechanisms which is configured to control the moving of the cleaning web into and out of contact with the plate cylinder in conformity with input signals received by the controller.
Abstract:
A coating unit is located after a sheet-fed digital printer on a manufacturing line. As a response to a workpiece entering the coating unit from the printer, coating substance is dosed onto a plate cylinder, and said plate cylinder is rotated to transfer said coating substance onto the workpiece, which is then transferred further on the manufacturing line. As a response to a first time limit expiring after transferring the workpiece further without a subsequent workpiece entering the coating unit, the rotation of the plate cylinder is stopped.
Abstract:
A printing unit (1) has a first roller (2) and a second roller (3) provided substantially parallel and facing each other for transporting of printing sheets between the first roller (2) and the second roller (3). The first roller (2) is rotationally mounted at only one end (10) of the first roller (2) and this end (10) is mounted to a deflector (9). The deflector (9) has a connection (11) to a support (12) for resiliently changing the angle of the first roller (2) relatively to the second roller (3) by bending the connection (11).
Abstract:
A printing unit (1) has a first roller (2) and a second roller (3) provided substantially parallel and facing each other for transporting of printing sheets between the first roller (2) and the second roller (3). The first roller (2) is rotationally mounted at only one end (10) of the first roller (2) and this end (10) is mounted to a deflector (9). The deflector (9) has a connection (11) to a support (12) for resiliently changing the angle of the first roller (2) relatively to the second roller (3) by bending the connection (11).