Roll stop and operating method of the same

Details Roll stop and operating method of the same Roll stop and operating method of the same

1993-02-08

1994-05-24

Dayoan, D. Glenn

Material or article handling

Cylindrical bar handling device

Including ramp and retractable stop or ejector

414911, B66F 1100

Patent

active

053142950

ABSTRACT:
A pneumatically operated roll stop of controllable speed is provided for stopping a roll. A first end of a stop arm is operatively connected to a pivotal joint of a frame. The distal end of the stop arm is provided for making contact with the roll to be stopped. A pneumatic cylinder comprises a cylinder unit having first and second ends defining a cavity therein. A piston is axially aligned in the cylinder and separates first and second working chambers. A piston rod is operatively connected to the piston axially extending outward from the cavity at a first end of the cylinder unit. The rod is operatively engaged with the frame, and the second end of the cylinder is operatively engaged to the stop arm. A first passage is provided for pneumatically connecting the first working chamber to a control valve and a pulse valve, and a second passage is provided for pneumatically connecting the second working chamber to the control valve. A control opens and closes the control valve and modulates the opening and closing of the pulse valve for pneumatically controlling the first and second working chambers for regulating the movement of the stop arm to stop the roll.

REFERENCES:
patent: 4435119 (1984-03-01), House
patent: 5096135 (1992-03-01), Eichenberger et al.

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