SYSTEM AND METHOD OF VARYING DWELL TIME IN A HONEYCOMB PLATE PRESS

摘要

A system and method of increasing a dwell time in a foil stamping press is provided. The dwell time is readily adjusted on the fly by the user for a given operating rate. A timer is used to adjust the press to stop on top dead center with changes in images per hour. An air clutch and an original equipment air brake are used in tandem to provide the desired dwell time. A pair of timers governs a pneumatic switch for control of the air clutch and the air brake. The present system and method increase die image area capacity as compared to conventional foil stamping presses. The increased dwell time of the present system and method yield a flawless foil stamped image for an impression pressure less than that required in a conventional machine for a given die, mounted at a given height upon a stationary platen, and at a given temperature.

主权项

1. An automatic 14×22 foil stamping press, the press comprising:
a pneumatic clutch mounted on a drive flywheel; an air brake mounted on a non-driven flywheel; a drive shaft connecting the drive flywheel to the non-drive flywheel; a pneumatic single pole double throw switch connected to the pneumatic clutch and connected to the air brake, wherein only one of the brake or the clutch is pressurized at a time and the pneumatic switch determines a pressurized state and an unpressurized state; a bed of the press; a frame of the press and a foot of the frame; a delay trigger limit switch mounted on the foot of the press frame and activated by rocking of the bed of the press; and. wherein, the delay trigger limit switch is adjusted in accordance with a press operating speed.