Disclosed is a flexographic printing device for a laminating machine, including at least one pair of shoulders mounted on a trolley frame, a blade chamber for containing printing ink; an Anilox roller that rotates in contact with the printing ink, a print roller holding a printing cliché that rotates in contact with the Anilox roller and a counter-pressure roller that rotates in contact with the cliché held by the print roller, wherein at least the Anilox roller and the print roller are supported by respective supports that can slide with respect to the shoulders in a direction substantially orthogonal to their axes, the printing device also including at least one first motor for rotating the Anilox roller, at least one second motor for rotating the print roller and possibly a third motor for rotating the counter-pressure roller.

An application unit includes an application mechanism having an application cylinder, a forme cylinder, and a supply roller, along with a positioning device. The positioning device has a linear guide and the application unit has a magazine for supply rollers, preferably located below the application mechanism, the magazine having magazine receptacles each for receiving one supply roller. The magazine has a repositioning device, by the use of which the magazine receptacles can be placed in different magazines positions. By the use of the positioning device, a supply roller can be moved along a linear roller positioning path, one end of which is identical to a supply position and the other end of which is identical to a magazine position of the magazine that is configured as a change position. The positioning device preferably has at least one transfer supporting member, which is arranged to be movable in and counter to a positioning direction relative to the frame of the flexographic application mechanism, guided along the at least one linear guide, and on which at least one component of a bearing seat can be arranged, which is configured to receive a rolling bearing arranged on the at least one supply roller.

An application unit includes an application mechanism having an application cylinder, a forme cylinder, and a supply roller, along with a positioning device. The positioning device has a linear guide and the application unit has a magazine for supply rollers, preferably located below the application mechanism, the magazine having magazine receptacles each for receiving one supply roller. The magazine has a repositioning device, by the use of which the magazine receptacles can be placed in different magazines positions. By the use of the positioning device, a supply roller can be moved along a linear roller positioning path, one end of which is identical to a supply position and the other end of which is identical to a magazine position of the magazine that is configured as a change position. The positioning device preferably has at least one transfer supporting member, which is arranged to be movable in and counter to a positioning direction relative to the frame of the flexographic application mechanism, guided along the at least one linear guide, and on which at least one component of a bearing seat can be arranged, which is configured to receive a rolling bearing arranged on the at least one supply roller.

A device and a method is disclosed to maintain plate and anilox mandrel position stability in print decks of a flexographic printing press. In one aspect, the mandrel bearings associated with at least one of the plate roll and the anilox roll are preloaded for the purpose of eliminating backlash and increasing the positional stiffness of the bearings, and thus the mandrel. In another aspect, the roll drive motor control system is enabled to provide a torque additive command the torque profile to maintain rotational consistency and otherwise overcome torque transients experienced by the motor during print bounce. Accordingly, the problem commonly referred to as print bounce and or print banding is alleviated.

An application unit includes an application mechanism with an impression cylinder, a forme cylinder, a supply roller, and a positioning device. The positioning device has a linear guide and a main supporting member, which is arranged to be movable in a positioning direction, guided by the linear guide, and is arranged rotatably on the main supporting member by a rolling bearing. The positioning device has a transfer supporting member, which is arranged to be movable in the positioning direction relative to the main supporting member, guided by the linear guide. On the transfer supporting member, a component of a bearing seat is provided, and which is configured to receive a rolling bearing arranged on the supply roller. The positioning device has a reservoir supporting member, which is arranged to be movable in the positioning direction, both relative to the main supporting member and relative to the transfer supporting member, guided by the at least one linear guide. An intermediate reservoir for application fluid is arranged on the reservoir supporting member. The reservoir supporting member is arranged, at least partially, between the main supporting member and the transfer supporting member as viewed in the positioning direction.

An application unit includes an application mechanism with an impression cylinder, a forme cylinder, a supply roller, and a positioning device. The positioning device has a linear guide and a main supporting member, which is arranged to be movable in a positioning direction, guided by the linear guide, and is arranged rotatably on the main supporting member by a rolling bearing. The positioning device has a transfer supporting member, which is arranged to be movable in the positioning direction relative to the main supporting member, guided by the linear guide. On the transfer supporting member, a component of a bearing seat is provided, and which is configured to receive a rolling bearing arranged on the supply roller. The positioning device has a reservoir supporting member, which is arranged to be movable in the positioning direction, both relative to the main supporting member and relative to the transfer supporting member, guided by the at least one linear guide. An intermediate reservoir for application fluid is arranged on the reservoir supporting member. The reservoir supporting member is arranged, at least partially, between the main supporting member and the transfer supporting member as viewed in the positioning direction.

A method is disclosed, which method is or at least can be carried out in a flexographic printing press for the purpose of determining a position of mutual contact between a printing roller and at least one counter roller. An average position of mutual contact between the printing roller and the counter roller is calculated, based on every position of mutual contact between the printing roller and the counter roller that is determined for a specific angular position of the printing roller and is used to execute a printing process carried out by the flexographic printing press.

An application unit includes an application mechanism with an impression cylinder, a forme cylinder, a supply roller, and a positioning device. The positioning device has a linear guide and a main supporting member, which is arranged to be movable in a positioning direction, guided by the linear guide, and is arranged rotatably on the main supporting member by a rolling bearing. The positioning device has a transfer supporting member, which is arranged to be movable in the positioning direction relative to the main supporting member, guided by the linear guide. On the transfer supporting member, a component of a bearing seat is provided, and which is configured to receive a rolling bearing arranged on the supply roller. The positioning device has a reservoir supporting member, which is arranged to be movable in the positioning direction, both relative to the main supporting member and relative to the transfer supporting member, guided by the at least one linear guide. An intermediate reservoir for application fluid is arranged on the reservoir supporting member. The reservoir supporting member is arranged, at least partially, between the main supporting member and the transfer supporting member as viewed in the positioning direction.

An application unit includes an application mechanism with an impression cylinder, a forme cylinder, a supply roller, and a positioning device. The positioning device has a linear guide and a main supporting member, which is arranged to be movable in a positioning direction, guided by the linear guide, and is arranged rotatably on the main supporting member by a rolling bearing. The positioning device has a transfer supporting member, which is arranged to be movable in the positioning direction relative to the main supporting member, guided by the linear guide. On the transfer supporting member, a component of a bearing seat is provided, and which is configured to receive a rolling bearing arranged on the supply roller. The positioning device has a reservoir supporting member, which is arranged to be movable in the positioning direction, both relative to the main supporting member and relative to the transfer supporting member, guided by the at least one linear guide. An intermediate reservoir for application fluid is arranged on the reservoir supporting member. The reservoir supporting member is arranged, at least partially, between the main supporting member and the transfer supporting member as viewed in the positioning direction.

A flexographic printing unit is provided for a sheet along a printing line, including a plurality of printing assemblies, each including a printing roller apt to include a printing block, automatic and programmable movement apparatus for the printing rollers, apt to distance at least one of the printing rollers from the printing line during the printing procedure, so that the printing roller does not print the sheet, wherein each of the printing assemblies includes a structure fixed to the floor, at least one frame, which is movable with respect to the structure fixed to the floor, including at least one printing roller and apt to be moved by the displacement apparatus and damping apparatus arranged between the frame and a fixed point so as to damp the movement of the frame.