The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 05, 2012
Filed:
Jun. 06, 2011
Molding material feed screw used in a molding material supply device of an injection molding machine
Hiroyasu Asaoka, Yamanashi, JP;
Junpei Maruyama, Yamanashi, JP;
Wataru Shiraishi, Yamanashi, JP;
Toshio Ishikuro, Yamanashi, JP;
Akira Oomori, Yamanashi, JP;
Hiroyasu Asaoka, Yamanashi, JP;
Junpei Maruyama, Yamanashi, JP;
Wataru Shiraishi, Yamanashi, JP;
Toshio Ishikuro, Yamanashi, JP;
Akira Oomori, Yamanashi, JP;
Fanuc Corporation, Yamanashi, JP;
Abstract
A notched region in which the outer periphery of a screw flight is cut out is provided in a molding material feed screw. A wedge-shaped portion is formed by both a front wall surface of the screw flight and a wall surface of the boundary where the outer periphery of the screw flight is cut out. As a result of rotation of the molding material feed screw, since the wedge-shaped portion advances while pushing aside resin pellets located in the front thereof in two lateral directions of the front wall surface of the screw flight and the wall surface of the boundary where the outer diameter of the screw flight is cut out, entrapment of the resin pellets between the edge of a material supply port of a molding material supply device and the outer periphery of the screw flight is avoided as much as possible.