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.

Date of Patent:
Dec. 10, 2019

Filed:

Jul. 31, 2018
Applicant:

Fanuc Corporation, Yamanashi, JP;

Inventors:

Tatsuhiro Uchiyama, Yamanashi-ken, JP;

Junpei Maruyama, Yamanashi-ken, JP;

Kazuyoshi Tanaka, Yamanashi-ken, JP;

Assignee:

FANUC CORPORATION, Yamanashi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 45/76 (2006.01); B29C 45/84 (2006.01); B29C 45/66 (2006.01); B29C 45/17 (2006.01);
U.S. Cl.
CPC ...
B29C 45/7653 (2013.01); B29C 45/66 (2013.01); B29C 45/84 (2013.01); B29C 45/661 (2013.01); B29C 2045/1792 (2013.01); B29C 2045/665 (2013.01); B29C 2945/76013 (2013.01); B29C 2945/76391 (2013.01); B29C 2945/76448 (2013.01); B29C 2945/76505 (2013.01); B29C 2945/76869 (2013.01);
Abstract

A brake control method for an injection molding machine includes the steps of obtaining mold clamping force information indicating the mold clamping force of a mold opening/closing mechanism and determining whether or not the mold clamping force of the mold opening/closing mechanism exceeds a predetermined value, based on the mold clamping force information. When the mold clamping force of the mold opening/closing mechanism does not exceed the predetermined value and when a servo amplifier cuts off the supply of power to a servomotor that drives the mold opening/closing mechanism, a brake mechanism for applying braking force to the mold opening/closing mechanism is actuated. On the other hand, when the mold clamping force of the mold opening/closing mechanism exceeds the predetermined value, the brake mechanism will not be actuated.


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