Device for treating preforms to obtain containers made of plastics
AssigneeAlkam S.R.L.
InventorsAlessandro Boscaratto, Stefano Brun
Life of this patent
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Abstract
A device for treating preforms to obtain containers made of plastics, for example bottles for food applications, comprising an ejector adapted to pick up and release one or more preforms, arranged so that their neck is directed upwardly, a heating conveyor, and a unit for transferring the preforms unloaded from the heating conveyor, which is adapted to modify their spacing and speed, adapting them to the spacing and speed of an adjacent and axially offset blow-molding conveyor to which the one or more preforms are transferred.
Claims14
A device for treating preforms to obtain containers made of plastics, comprising:
- an ejector suitable to pick up and release one or more of said preforms, arranged so that the neck of said preforms is directed upwardly, from a heating conveyor and a unit for transferring said one or more preforms unloaded from said heating conveyor, which is suitable to modify spacing and speed of said preforms, adapting them to spacing and speed of an adjacent and axially offset blow-molding conveyor to which said one or more preforms are transferred,
- wherein said ejector is composed of a first actuator, which allows to impart an upward motion by way of the movement of two jaws, to a selected series of supports, said upward movement of each series of supports being followed by a release of the corresponding preforms from said pick-up plugs, with consequent fall with the neck of the preforms facing upward at at least one present series of underlying series of cups,
- and wherein said series of cups is mounted on a carriage which can be moved along an axis X, said movement being obtained by means of a suitable first motor and being suitable to synchronize said carriage with said overlying series of supports so as to allow said preforms released by said ejector to fall into said cups after a first upward motion along an axis Z of said carriage.
The method for treating preforms to obtain containers made of plastics, comprising a first step, in which a transfer unit reaches the speed of a heating conveyor, followed by a second step, in which a carriage and a support associated therewith are made to perform a first upward stroke along an axis Z, with a simultaneous movement of a transfer unit also along an axis X so as to position cups below an overlying series of pick-up plugs, receiving from them said preforms, which they disengage by means of an ejector.
Dependencies are inferred from the claim text.