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US 12,668,005 B2Granted
Extrusion device
AssigneeAisapack Holding S.A.
InventorsLaurent Cordier, Benoit Hamm, Etienne Hermant, Jean-Manuel Massey, Francky Seneuze
Life of this patent
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Abstract
The device for implementing the method comprises an extruder (10) supplied with a material, at least a first cylinder (11) and a second cylinder (12), at least a first mould (13) and a second mould (13′), a circuit (14) connecting the extruder to the cylinders and the cylinders to the moulds, and means for extraction (18, 19, 19′) of the moulded item.
Claims16
A device for the molding of two-dimensional (2D) or three-dimensional (3D) items, said device comprising:
- at least one extruder;
- a first cylinder;
- a second cylinder, said at least one extruder supplying said cylinders;
- a rotary barrel comprising a plurality of molds;
- and
- a distribution plate that is fixed relative to the barrel and common to all of the molds and having
- an injection point configured to supply one of the molds, and
- an ejection hole configured to extract a molded item from the mold,
- wherein said first and second cylinders are configured to alternately fill one of said molds of the rotary barrel via said injection point, said rotary barrel being rotated by one indexed interval when said mold is filled, said molds being closed off sealingly by the distribution plate between the position of injection and the position of extraction of the item formed.
6 more elements
A method for manufacturing two-dimensional (2D) or three-dimensional (3D) items, the method comprising:
- supplying a first material from one or more sources in the form of flakes, a proportion of material as a function of its source being predetermined as a function of the item being manufactured;
- mixing the flakes, and then introducing the mixed flakes into an extruder;
- extruding the first material;
- introducing the extruded material into a first injection cylinder of a pair of injection cylinders working alternately;
- injecting the introduced material from a second injection cylinder of said pair of injection cylinders into a movable mold disposed in a rotary system with several molds, through an injection point passing through a distribution plate that is fixed relative to the rotary system;
- closing the mold by rotating said rotary system, by the distribution plate on which said system slides;
- cooling the molds of the rotary system during rotation of said system;
- and
- extracting a molded item is extracted via an extraction point passing through the distribution plate.
6 more elements
Dependencies are inferred from the claim text.