Die casting machine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 24, 2012
Grant Date -
Apr 28, 2011
app pub date -
Jul 2, 2009
filing date -
Jul 4, 2008
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Provided is an electric die casting machine capable of achieving high injection speed and high boost pressure. An injection unit (100) is provided with an electric servomotor (104) for injection in a first stage, a ball screw mechanism (110) (motion converting mechanism in the first stage) for converting rotational motion of the electric servomotor for injection in the first stage into rectilinear motion of a linear motion body (106), electric servomotors (111 and 112) for injection in a second stage, mounted on the linear motion body, a crank mechanism (113 and 116) (motion converting mechanism in the second stage) for converting rotational motion of the electric motor servomotor for injection in the second stage into rectilinear motion of an injection plunger (118), and a control unit (400) for controlling driving of each electric servomotor for injection. The control unit drives only the electric servomotor (104) for injection in the first stage independently in a low-speed injection step, and drives both the electric servomotor (104) for injection in the first stage and the electric servomotors (111 and 112) for injection in the second stage simultaneously in a high-speed injection step and a pressure intensification step.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully