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:
Jul. 01, 2003
Filed:
Feb. 12, 2002
Kengo Takeya, Hiroshima, JP;
The Japan Steel Works, Ltd., Tokyo, JP;
Abstract
In a control method of the injection molding in accordance with the invention, in the process of injecting molding a low-melting-point alloy, an upper limit Q and a control lower limit CQ of a quantity of material detained in a cylinder are set to eliminate an excess or a shortage of the quantity of material detained in the cylinder A material in a quantity greater than shot weight Q is fed continuously into the cylinder until the upper limit is reached, while the material in a quantity less than the shot weight is fed into the cylinder until the lower limit is reached, thereby automatically maintaining the quantity of material detained in the cylinder within the range between the upper and lower limits. Accordingly, the down time due to the instability of metering in a molding machine can be reduced, and manpower for adjustment of conditions is not required, thereby making it possible to curtail the cost.