Back to results
US 7,029,262 B2Granted
Method and apparatus for making pellets of wood meal compound
AssigneeThe Japan Steel Works, Ltd.
InventorMakoto Tojyo
Life of this patent
Estimating the term…
Abstract
A method and apparatus for making pellets of wood meal compound according to the present invention is constructed in such a manner that synthetic resin material and wood meal material are supplied into a hopper (3) in a most upstream position, and kneaded in a long kneading section (6) having no side feeder (2), thereby to obtain pellets from mixed material having more uniform properties than in the prior art.
Claims3
An apparatus for making pellets of wood meal compound comprising:
- a twin screw type kneading and extruding machine, including
- a hopper in a most upstream position;
- a degassing cylinder disposed in a downstream direction from said hopper;
- a kneading section disposed in a downstream direction from said degassing cylinder;
- an open vent disposed in a downstream direction from said kneading section;
- a vacuum drawing vent disposed in a downstream direction from said open vent;
- an adapter disposed in a downstream direction from said vacuum drawing vent;
- a breaker plate disposed in a downstream direction from said adapter;
- a die holder disposed in a downstream direction from said breaker plate;
- a cutting device disposed in a downstream direction from said die holder;
- and
- a twin screw having a continuous helical thread;
- wherein said hopper is configured so as to simultaneously supply a combination of a synthetic resin material and a wood meal material directly to an upstream side of the degassing cylinder;
- and
- wherein the twin screw penetrates through said adapter and said breaker plate and said continuous helical thread penetrates through said adapter and said breaker plate,
- wherein a distal end of said twin screw passes through said die holder into said die.
13 more elements
Dependencies are inferred from the claim text.