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:
Dec. 01, 1998
Filed:
Jun. 06, 1997
Applicant:
Inventor:
Kazuo Hiraoka, Chiba, JP;
Assignee:
Sumitomo Heavy Industries, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318566 ; 318432 ;
Abstract
A control device for an injection molding machine includes a pattern generator for generating a set pattern of clamping forces. The pattern generating calculates a travel distance of a movable member in the mold clamping system according to the set clamping force and generates the set pattern having an allowable range of deviation that is defined by an upper limit and a lower limit relative to the calculated travel distance. The mold clamping system continuously decreases the clamping such that it falls within the range defined by the allowable range of deviation after the clamping force reaches the value defined by the upper limit.