System on a bookbinding machine, to permit actuator-effected pos

Details System on a bookbinding machine, to permit actuator-effected pos System on a bookbinding machine, to permit actuator-effected pos

1987-04-13

1988-08-30

Kazenske, E. R.

Bookbinding: process and apparatus

Apparatus

With control means responsive to sensed condition

412 13, 227 1, 270 56, B42C 1300, B42C 1304, B65H 4302, B21J 1528

Patent

active

047672501

ABSTRACT:
An external electronic measuring apparatus 2 in which a sample book block 1 is clamped and the thickness is then determined as a displacement-dependent actual value. The apparatus further includes a microprocessor 20 in which the actual displacement value is evaluated, and is stored as a required value, and a control unit 19 for transmitting the required value to the actuators 44, 45, as an actuating variable. The measuring apparatus possesses a clamping device 8, 9 which can be driven by a motor, and which enables two or more actual displacement values to be determined, these values being functions of differing compressive forces which serve to hold the book blocks in the bookbinding machine 42. These actual displacement values are defined by switch arrangements 20, 38, 13, and 39, as pressure points P1, P2 . . . Pn, and are determined, as actual displacement values, by means of a displacement measuring facility 31-35, in a sequentially controlled procedure. The displacement values are commensurate with the exceedance of a predetermined, required compressive force, defined by a first spring means 14, and the exceedance of a predetermined, required force, defined by a second spring means 17.

REFERENCES:
patent: 3627303 (1971-12-01), Zeewy
patent: 3928119 (1975-12-01), Sarring
patent: 3953277 (1976-04-01), Kuhns
patent: 4078784 (1978-03-01), Mikskoff et al.
patent: 4621757 (1986-11-01), Osako
patent: 4634107 (1987-01-01), Vandersyde et al.

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