Extrusion apparatus with winding socket
AssigneeA-Z Formen- und Maschinenbau GmbH
InventorFlorian Fischer
Life of this patent
Estimating the term…
Abstract
An extrusion apparatus is provided having an extrusion worm with a threaded exterior passage and rotatably driven by a drive shaft operatively couplable with a drive motor for driving rotation of the drive shaft. A feed in device feeds to the extrusion apparatus material that is to be extruded. The extrusion device includes a socket having a threaded interior passage, the socket receiving therein the extrusion worm in at least partial axial overlap such that material to be extruded passes between and in contact with the threaded exterior passage of the extrusion worm and with the threaded interior passage of the socket. The rate of rotation of the socket and the rate of rotation of the extrusion worm are independently adjustable relative to one another.
Claims17
An extrusion apparatus comprising:
- a drive shaft operatively couplable with a drive motor for driving rotation of the drive shaft, the drive shaft for receiving thereon from a feed in device material which is to be extruded;
- an extrusion worm having a threaded exterior passage, the extrusion worm being connected to the drive shaft for driving rotation of the extrusion worm and operable to receive from the drive shaft material to be extruded, said extrusion worm having a worm housing, wherein said worm housing is non-rotatable;
- and
- a socket having a threaded interior passage, the socket receiving therein the extrusion worm in at least partial axial overlap such that material to be extruded passes between and in contact with the threaded exterior passage of the extrusion worm and the threaded interior passage of the socket, wherein said socket extends from a location proximate a start of said threaded exterior passage to a downstream point of said threaded exterior passage.
A method for extruding material comprising:
- feeding material to be extruded onto a rotating drive shaft such that the fed material is advanced therefrom onto an extusion worm having a threaded exterior passage and operatively coupled to the drive shaft for driving rotation of the extrusion worm;
- and
- rotating the extrusion worm while also rotating at an independent rate of rotation a socket having a threaded interior passage which Is at least partially overlapping with the extrusion worm, the rotation of the extrusion warm and the socket being controlled such that the material is drawn in between the extrusion worm and the socket, and is in contact with the threaded exterior passage of the extrusion worm and the threaded interior passage of the socket, wherein said socket extends from a location proximate a start of said threaded exterior passage to a downstream point of said threaded exterior passage.
An extrusion apparatus comprising:
- a drive shaft operatively couplable with a drive motor for driving rotation of the drive shaft, the drive shaft for receiving thereon from a feed in device
- material which is to be extruded;
- an extrusion worm having a threaded exterior passage, the extrusion worm being connected to the drive shaft for driving rotation of the extrusion worm and operable to receive from the drive shaft material to be extruded;
- and
- a socket having a threaded interior passage, the socket receiving therein the extrusion worm in at least partial axial overlap such that material to be extruded passes between and in contact with the threaded exterior passage of the extrusion worm and the threaded interior passage of the socket and the rate of rotation of the socket and the rate of rotation of the extrusion worm being independently adjustable relative to one another, wherein the diameter of the socket at its entrance end at which the material to be extruded passes thereinto is generally three times the outer diameter of the extrusion worm and the entrance end of the socket is downstream of the entrance end of the extrusion worm relative to the direction of flow of the material to be extruded.
Dependencies are inferred from the claim text.