Plastic article or earthenware shaping or treating: apparatus – Distinct means to feed – support or manipulate preform stock... – Female mold type means
Patent
1987-02-25
1988-02-16
Hoag, Willard
Plastic article or earthenware shaping or treating: apparatus
Distinct means to feed, support or manipulate preform stock...
Female mold type means
425122, 425126R, 425127, 425129R, 425575, 425589, 425592, 425593, 4254515, 4254519, B29C 4514, B29C 4533, B29C 4566
Patent
active
047252138
ABSTRACT:
Described is a drive for injection mould parts of a synthetic plastics injection moulding apparatus for injecting a wall part on a paper web, with at least one supply injector fixed on a carrier, a plurality of injector heads rigidly connected thereto and with driven connecting levers.
So that parallel webs of a packaging tube can be passed more closely beside one another so that it is possible to manage with a few plasticising units in the smallest space and with short flow paths for the synthetic plastics material, it is according to the invention envisaged that the direction of conveyance of the paper web extend at a right-angle to the direction of opening and direction of closure of the mould parts, a plurality of pairs of movable mould parts being disposed adjacent one another at a distance (X) in the opening and closing directions, the connecting levers which take the form of ties and knee levers being so articulated that during injection, the forces which arise are mutually reinforcing and the carrier can be of lighter weight construction, at least in its middle portion.
REFERENCES:
patent: 4276013 (1981-06-01), Bazzea
patent: 4525318 (1985-06-01), Reil et al.
Deutschbein Ulrich
Reil Wilhelm
Hoag Willard
Tetra Pak Finance & Trading S.A.
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