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. 26, 2007
Filed:
Nov. 07, 2003
Wataru Shiraishi, Yamanashi, JP;
Satoshi Takatsugi, Yamanashi, JP;
Toshio Ishikuro, Yamanashi, JP;
Hiroyasu Asaoka, Yamanashi, JP;
Wataru Shiraishi, Yamanashi, JP;
Satoshi Takatsugi, Yamanashi, JP;
Toshio Ishikuro, Yamanashi, JP;
Hiroyasu Asaoka, Yamanashi, JP;
Fanuc Ltd., Yamanashi, JP;
Abstract
When a metering process is started, a screw rotates at a preset rotating speed, thereby carrying out back pressure control to keep the pressure of a resin at a preset pressure, and retreats. When the screw is located near a preset metering completion position, the control mode is switched to positioning control for the preset metering completion position, and a screw rotation stop command is outputted. The screw overruns for some distance before its rotation stops after it retreats and stops at the preset metering completion position. A resin quantity for the overrun is corrected to obtain a preset metered resin quantity by reversely rotating the screw by a rotational amount corresponding to the overrun.