Two-stage ejector

Details Two-stage ejector Two-stage ejector

1999-03-10

2000-08-22

Pyon, Harold

Plastic article or earthenware shaping or treating: apparatus

Shaping surface including means to release or remove product...

Removal-miscellaneous

425192R, 425444, B29C 5900

Patent

active

061062715

ABSTRACT:
The invention relates to an arrangement for a two-stage ejector for an injection moulding tool. It comprises a piston cylinder arrangement with piston cylinder elements capable of axial displacement relative to one another in separate stages for the actuation of separately moving ejector plates, having the front plate attached to a piston capable of detachable attachment to a sleeve accommodating said piston via radially moving coupling segments. Internally inside the sleeve, which is attached to the rear plate via a threaded connection, an accommodating body for the coupling segments is fixed to the front plate via radial wings. The wings are capable of movement along the sleeve in matching recesses along the rear part of the sleeve.

REFERENCES:
patent: 4050666 (1977-09-01), Van Tichelt
patent: 4054406 (1977-10-01), Ruegg
patent: 4239174 (1980-12-01), Muller et al.
patent: 4620958 (1986-11-01), Wiechard

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