Two ink applicators, each with an ink roll and an ink chamber, for supplying ink to a print roll, and one or more applicator adjustment mechanisms for retracting one ink applicator away from the print roll while the other ink applicator contacts and supplies ink to the print roll. The applicator adjustment mechanisms has eccentric bearings and gears, a primary actuator operates each applicator adjustment mechanism, and a secondary actuator operates a travel limiting mechanism connected to the primary actuator. Alternatively, one or more actuators operate one or more pivot arms, with the ink applicators mounted thereon, for engaging or retracting the ink applicators. A main drive rotates the print roll and the ink rolls, a registration adjustment mechanism with differential gearing permits adjusting the print roll rate of rotation, and an idle drive mechanism with clutches and motors permits rotating the ink rolls independently of the main drive.
Belt-Driven Printer-Cutter Machine For Corrugated Paperboard Of Varying Thickness
A disclosed embodiment of the invention is a belt-driven printer-cutter machine 10 including a roller-mounted feed/print machine section 14 and a fixed cutting machine section 16. A spline-type separable coupling 30-32 between these machine sections allows the feed/print section to be rolled on a fixed track 18 directly opposite the machine direction to separate the machine sections for maintenance, changing the printing plate 88 and cutting die 108, and to make other adjustments during machine setup. The sections may then be rolled back into engagement at the spline-type coupling to transmit power between the machine sections. The printer-cutter machine includes separate synchronous belts for the drive trains of each machine section. The machine may also include a separate synchronous belt for the fixed and adjustable rolls of each machine section. Specifically, the machine may include a dual auto-tensioned feed/print section belt 154, a fixed feed/print section belt 160, an auto-tensioned cutting section belt 230, and a fixed cutting section belt 244.
Belt-Driven Printer-Cutter Machine For Corrugated Paperboard Of Varying Thickness
Corrugated Gear and Services, Inc. - Alpharetta GA
International Classification:
B41J 1126
US Classification:
400621
Abstract:
A disclosed embodiment of the invention is a belt-driven printer-cutter machine 10 including a roller-mounted feed/print machine section 14 and a fixed cutting machine section 16. A spline-type separable coupling 30-32 between these machine sections allows the feed/print section to be rolled on a fixed track 18 directly opposite the machine direction to separate the machine sections for maintenance, changing the printing plate 88 and cutting die 108, and to make other adjustments during machine setup. The sections may then be rolled back into engagement at the spline-type coupling to transmit power between the machine sections. The printer-cutter machine includes separate synchronous belts for the drive trains of each machine section. The machine may also include a separate synchronous belt for the fixed and adjustable rolls of each machine section. Specifically, the machine may include a dual auto-tensioned feed/print section belt 154, a fixed feed/print section belt 160, an auto-tensioned cutting section belt 230, and a fixed cutting section belt 244.
Corrugated Paperboard Box Converting Machine Retrofit For Eliminating Edge Crush Test Degradation
A box machine is retrofitted by removing the upper feed roll, sheet feeder, and by replacing the lower feed roll with a drive shaft. A transport section and a sheet feeder are then inserted into the box machine. The transport section comprises transport wheels driven by the drive shaft which engage a sheet to transport it to the box machine without crushing. The sheet feeder comprises feed wheels driven by a servo motor for feeding the lowermost sheet of a stack to the transport section. A feed interrupter is movable from a raised stop-feed position to a lowered feed position by cams rotated by a servo motor. A controller coordinates the velocity of the feed wheels and position of the feed interrupter. Retrofitted machines eliminate the need to increase Edge Crush Test ratings of sheets from the corrugator 15% to 20% greater than printed in the certificate stamp.