Abstract

A centrifugation station for extrusion plants comprises a tubular body, a shaft and an impeller. The tubular body internally defines a processing duct extending along a central axis between a supply section and a release section. The shaft has an upper portion extending in the supply section and a threaded lower portion extending in the release section. The impeller is fitted around the upper portion of the shaft and is rotatable around the central axis independently of the shaft. Furthermore, the impeller is provided with a plurality of blades angularly spaced from each other and shaped to distribute the molten material to be extruded on an inner wall of the supply duct favouring the extraction of any volatile compounds from the material to be extruded.

IPC Classes  ?

• B01D 1/22 - Evaporating by bringing a thin layer of the liquid into contact with a heated surface
• B01D 1/00 - Evaporating
• B29C 48/76 - Venting meansDegassing means
• B29C 48/92 - Measuring, controlling or regulating

Abstract

A centrifugation station for extrusion plants comprises a tubular body (2), a shaft (3) and an impeller (4). the tubular body (2) internally defines a processing duct extending along a central axis (X) between a supply section (2a) and a release section (2b). The shaft (3) has an upper portion (3a) extending in the supply section (2a) and a threaded lower portion (3b) extending in the release section (2b). The impeller (4) is fitted around the upper portion (3a) of the shaft (3) and is rotatable around the central axis (X) independently of the shaft (3). Furthermore, the impeller (4) is provided with a plurality of blades angularly spaced from each other and shaped to distribute the molten material to be extruded on an inner wall of the supply duct favouring the extraction of any volatile compounds from the material to be extruded.

IPC Classes  ?

• B01D 1/22 - Evaporating by bringing a thin layer of the liquid into contact with a heated surface
• B29C 48/76 - Venting meansDegassing means
• B29B 7/84 - Venting or degassing
• B29C 48/385 - Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in separate barrels
• B29C 48/565 - Screws having projections other than the thread, e.g. pins
• B29C 48/585 - Screws provided with gears interacting with the flow

Goods & Services

Plastic recycling machines; machines for the production of recycled polymers; machines for removing volatile compounds; machines, machine tools, power-operated tools; motors, other than for land vehicles; machines and machine tools for treatment of materials and for manufacturing; textile production machines; wire making machines; material production and processing machines; plastics moulding machines; machines for processing plastics; extrusion machines for plastic; yarn spinning machine; wire extruding machines; extrusion moulding machines; wire forming machines; chemical fiber spinning machines.

Goods & Services

Plastic processing machines, namely, plastic recycling machines; machines for the production of recycled polymers; machines for removing volatile compounds being plastic processing machines; machines, namely, machines for plastic working; machine tools, namely, metalworking machine tools, chasers, gear cutters; power-operated tools, namely, drill hammers, drill presses, thread mills; motors, other than for land vehicles; machines and machine tools for treatment of materials and for manufacturing, namely, textile making-up machines, machine tools for forming, riveting, swaging, and flaring of plastics; textile production machines, namely, textile tentering machines, textile scutching machines, printing machines for textiles, textile calendering machines; wire making machines, namely, wire forming machines, wire drawing machines, wire-coiling machines; material production and processing machines, namely, machines and lines composed thereof for the production and processing of technical textiles; injection plastics moulding machines; machines for processing plastics; extrusion machines for plastic; yarn spinning machine; wire extruding machines; extrusion moulding machines; wire forming machines; chemical fiber spinning machines

Abstract

An extrusion apparatus for processing polymeric material, comprises at least one melting station (2), at least one pumping station (3) arranged operatively downstream of said melting station (2) and arranged to push the molten or softened polymeric material inside an extrusion head and a centrifugation station (4) operatively interposed between the melting station (2) and the pumping station (3), configured to extract any volatile components from the polymeric material.

IPC Classes  ?

• B29C 48/76 - Venting meansDegassing means
• B29C 48/385 - Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in separate barrels
• B29C 48/365 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pumps, e.g. piston pumps
• B29B 7/84 - Venting or degassing
• B29C 48/25 - Component parts, details or accessoriesAuxiliary operations
• B29C 48/80 - Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders