US 9,782,817 B2 · System and method of varying dwell time in a honeycomb plate press

Abstract

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 press yields 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.

Claims9

Dependent claims

A method of providing a variable dwell time in an automatic foil stamping press, the method comprising:

enabling spring compression in movable arms on a left and a right of a moveable platen, respectively;
pressurizing a clutch on a drive flywheel coupling the drive flywheel to a drive shaft;
setting a first timer to adjust stopping of the movable platen on top dead center;
triggering a pneumatic switch on a lapse of the first timer;
depressurizing the clutch, uncoupling the drive flywheel from the drive shaft and pressurizing an original equipment brake;
starting a dwell timer upon lapse of the first timer;
applying a second trigger to the pneumatic switch upon lapse of the dwell timer;
and
pressurizing the clutch, coupling the drive flywheel to the drive shaft and depressurizing the original equipment brake.

6 more elements

Dependencies are inferred from the claim text.

System and method of varying dwell time in a honeycomb plate press

Life of this patent

System and method of varying dwell time in a honeycomb plate press

Life of this patent

Abstract

Claims9