US 5,375,991 AGranted

Mechanism for the automatic manufacturing of articles made from plastic, particularly from recyclable plastic

AssigneeSpies Kunststoff-Recycling GmbH Company

InventorsTheo Rydmann, Giuseppe Attilo, Manfred Schibalsky

Life of this patent

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Abstract

This invention relates to automating a process for manufacturing articles from plastic, particularly recyclable plastic waste. A lengthened separator head is flanged to a plasticizer to supply melting serially to several molds, by way of mold inlet shut-off mechanism. A preprogrammed control device monitors the filling of a respective mold by way of a pressure sensor in the mold. When the desired filling of the mold has occurred, the inlet shut-off mechanism is closed by the control device and another mold that is ready to be filled is filled with melting by the opening of the corresponding inlet shut-off mechanism at the another mold. In addition, the control device controls the locking and tightening of the mold as well as its opening and emptying.

Claims69

Dependent claims

A mechanism for producing a plurality of articles out of plastic, comprising:

a) a plurality of molds having multi-parts,
b) a plasticizer for providing melting for the molds,
c) a stationary separator head having an inlet connected to the plasticizer to receive the melting and having several blockable outlets, with each outlet leading melting to one of the plurality of the individual molds,
d) multiple blocking means, one for each one of the several outlets to open an outlet from the separator to allow melting to be directed into one of the molds and to close the outlet to stop melting from being directed from the separator to the same mold, and
e) central control means to cyclically and sequentially open one outlet to permit filling of one mold and upon filling thereof, to close that outlet and open another outlet to permit filling of another mold.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/004,585Filed 14 Jan 1993
Priority: DE 42117688 Apr 1992
Granted: 27 Dec 1994
Term ends: Not estimatedThe source records don’t support an estimate.

Classification16 codes

B29C 45/7613
Measuring, controlling or regulating: the termination of flow of material into the mould
B29C 33/202
Opening, closing or clamping: clamping means operating on closed or nearly closed mould parts, the clamping means being independently movable of…
B29C 45/125
Using two or more fixed moulds, e.g. in tandem: using a material distributing system
B29C 45/572
Exerting after-pressure on the moulding material: using movable mould wall or runner parts