Patent CA-2202334-A1 (CA)
Inventor: BAYZELON FRANCOIS
IPC: B41F5/24
Filed: 1997-04-10
Abstract: A rotary flexographic printing press includes a carriage supported on a frame for movement toward and away from an impression cylinder between a printing positionand an interrupted position, and a plate cylinder supported on the carriage for rotation about a horizontal axis extending in a direction parallel to the horizontal axis of the impression cylinder.  The carriage is moved by an interruption assembly including a pair of laterally spaced, elongated shuttles, each of which are supported on the frame for longitudinal shifting movement in a horizontal direction transverse to the axis of the impression cylinder, and an actuator that shifts each shuttle toward and away from the impression cylinder.  Another carriage is supported on the frame for movement toward and away from the plate cylinder between a plurality of inking and interrupted positions, and an inking cassette is supported on the second carriage for inking the plate cylinder during printing.  The inking cassette includes an inking roller and a supply reservoir. A drive mechanism is provided for driving rotation of the inking roller, and includes a rotatable drive head supported on the carriage for movement with the inking cassette carriage toward and away from the plate cylinder.  The inking roller engages and is rotated by the drive head. A rotary web printing press includes an elongated frame defining a web travel path, and an anvil roller supported on the frame for rotation about a horizontal axis extending in a direction transverse to the web travel path.  A carriage is supported on the frame for movement toward and away from the anvil roller between a die cutting position and an interrupted position in a direction transverse to the horizontal axis of the anvil roller, and a die roller is supported on the carriage for rotation about a horizontal axis extending in a direction parallel to the axis of the anvil roller.  The axes of the anvil roller and die roller are disposed in a common horizontal plane.  In addition, a pressure regulating assembly is provided for moving the carriage to the die cutting position and pressing the die roller against the anvil roller. A rotary web printing press includes an elongated frame defining a web travel path and a dryer opening extending in a direction transverse to the web travel path. A first pair of ventilation ducts communicate with the dryer opening, and a first power plug is accessible from within the dryer opening. A carriage is supported on the frame within the dryer opening and is sized for receipt of a dryer.  The dryer includes a housing, a drying element, a mounting plate by which the housing is secured to the carriage, a second pair of ventilation ducts, and a second power plug.  The mounting plate can be locked on the carriage when the dryer is positioned in the dryer opening or unlocked to permit the dryer to be removed from the opening.  The second pair of ducts and the second plug are connected to the first pair of ducts and plug when the housing is inserted into the opening and are disconnected when the housing is withdrawn from the opening.