| 摘要 |
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). Automatic belt take-up mechanisms (278, 282) driven by air cylinders (280, 284) automatically tension the synchronous belts (154, 230) driving the adjustable rolls of each machine section. This allows the nip between the upper and lower rolls of each machine section to be adjusted while maintaining constant machine speed and without affecting the proper registration between the machine sections and the leading edge of the paperboard blank. |
