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. 22, 1999
Filed:
Oct. 06, 1997
Kouichi Matsubayashi, Nagano-ken, JP;
Takao Shimizu, Nagano-ken, JP;
Nobusuke Takahashi, Nagano-ken, JP;
Nissei Plastic Industrial Co., Ltd., Nagano-Ken, JP;
Abstract
An electric motor type injection apparatus for a vertical molding machine which is compact in size and can be installed on a square measure limited is provided. According to this apparatus, an improper movement due to self-weight of injection mechanism members can be prevented, and deviation of a nozzle tip resulting in the cause of damage of a nozzle tip and a gate can be corrected. The apparatus is constituted by an injection driving device comprising a lower plate, an upper plate, an injection plate movable freely between the upper and the lower plates, an injection driving means comprising a ball screw shaft and a ball nut, a driving source for the injection driving means provided on the upper plate, a metering driving source for rotating a screw; a moving mechanism comprising a pair of ball screw shafts and ball nuts so as that nozzle touches by moving the injection driving device upwardly and downwardly; and a movement driving source for rotating the ball screw shafts, wherein they are arranged in a special manner.