US 2006/0280833 A1Published application

Injection-molding machine

AssigneeKlöckner Desma Elastomertechnik GmbH

InventorVolker Krell

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Abstract

An injection-molding machine has a fixed mold clamping plate and a mold backing plate that can be moved relative to the fixed plate. The movable backing plate can be moved relative to the fixed backing plate, guided along columns or plungers, by means of a process drive. Mold halves held on the backing plates are disposed outside of the space delimited by the columns/plungers. One of the mold backing plates has accommodation spaces for the column ends that are moving in. The spaces are connected with one another and form a system that is closed in itself and filled with a pressure agent, to which pressure can be applied. Each column on the mold side carries a piston-shaped cap on the face of the cap that points into the accommodation space, in each instance, which is larger in diameter, passes completely through the accommodation space, and projects out of it, forming a seal.

Claims10

Dependent claims

An injection-molding machine comprising:

(a) a fixed mold backing plate;
(b) a movable mold backing plate movable relative to said fixed mold backing plate;
(c) a plurality of columns for guiding said movable mold backing plate, each column having a column end, said plurality of columns comprising at least one column on a mold side;
(d) a process drive for moving said movable mold backing plate;
(e) a first mold half held on said fixed mold backing plate;
and
(f) a second mold half held on said movable mold backing plate;
wherein said columns define a space and the first and second mold halves are disposed outside said space;
wherein one of said backing plates has a plurality of interconnected accommodation spaces for receipt of the column ends, said interconnected accommodation spaces forming a pressurizable closed system filled with a pressure agent, said at least one column on the mold side carrying a piston-shaped cap on a face of said at least one column pointing into a respective accommodation space larger in diameter than said piston-shaped cap, said piston-shaped cap passing completely through and projecting out of the accommodation space to form a seal.

6 more elements

Dependencies are inferred from the claim text.