EP 0284903 B1 19930602 - PISTON PRESS
Title (en)
PISTON PRESS
Publication
Application
Priority
- DE 3710289 A 19870401
- DE 3716220 A 19870514
Abstract (en)
[origin: EP0284903A2] A piston press (10) comprises a ram (17), which is connected to a piston (16) running in a cylinder (15). Compressed air can be admitted to the cylinder (15) via valves (42, 45). In order to be able to carry out pressing operations with a controlled displacement/time characteristic and to provide an operational piston press which does not require a high outlay in terms of installation, the ram (17) interacts with a displacement-measuring system (18). An output signal (s) of the displacement-measuring system (18) is compared with predetermined set point values (S0, S1, S2, S3) in a controller (37). The controller (37) controls electropneumatic servo valves (42, 45) for admitting pressure to the cylinder (15) according to a predetermined displacement/time characteristic (s(t)) (Fig.1). <IMAGE>
IPC 1-7
IPC 8 full level
B30B 15/18 (2006.01); B30B 15/26 (2006.01)
CPC (source: EP)
B30B 15/18 (2013.01); B30B 15/26 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL
DOCDB simple family (publication)
EP 0284903 A2 19881005; EP 0284903 A3 19890920; EP 0284903 B1 19930602; DE 3716220 A1 19881020; DE 3881424 D1 19930708
DOCDB simple family (application)
EP 88104222 A 19880317; DE 3716220 A 19870514; DE 3881424 T 19880317