Gripper control system using a servo driven CAM and a method...

Details Gripper control system using a servo driven CAM and a method... Gripper control system using a servo driven CAM and a method...

2006-10-05

2010-06-08

Mackey, Patrick (Department: 3653)

Sheet feeding or delivering

Feeding

By means to convey sheet

C271S082000

Reexamination Certificate

active

07731190

ABSTRACT:
A gripper system for controlling the loading and unloading of sheets on a cylindrical sheet guide. The gripper system comprises one or more grippers, which are positioned at an outer edge of the cylindrical sheet guide. Each gripper is coupled to a cam follower. The gripper system further comprises a cam, which is configured for affecting the elevation of the gripper(s) by moving the cam follower(s), and a servomotor, which is adapted for steering the cam. A cam-gripper controller is provided for controlling the servomotor according to a current printing profile.

REFERENCES:
patent: 5335597 (1994-08-01), Helmstadter
patent: 5390601 (1995-02-01), Fricke et al.
patent: 6437333 (2002-08-01), Suhara et al.
patent: 6877430 (2005-04-01), Muller
patent: 2005/0167246 (2005-08-01), Caunter
patent: 4200406 (1993-07-01), None

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