Title:
ELECTRIC INJECTION MOLDING MACHINE THAT CAN SWITCH SERVO AMPLIFIER
Document Type and Number:
Japanese Patent JP2020183056
Kind Code:
A
Abstract:
To provide an electric injection molding machine capable of extending a life of a servo amplifier.SOLUTION: An electric injection molding machine is configured so that a connection between a servo amplifier (8, 9, 10) and a servo motor (15, 16, 17) can be switched. The electric injection molding machine is equipped with a converter (4) and converts three-phase AC power from a factory into DC power. Then, this DC power is converted into desired three-phase AC power by the servo amplifier (8, 9, 10) and supplied to the servo motor (15, 16, 17). In the present invention, at least two or more three servomotors (15, 16, 17) corresponding to an injection shaft, a plasticizing shaft, and a mold opening/closing shaft are set as a switching target group. Then, the servomotor (15, 16, 17) of the switching target group are connected to the same number of servo amplifiers (8, 9, 10) via a selector (21, 22, 23) that can be switched to each other.SELECTED DRAWING: Figure 1
Inventors:
OKAWACHI AKIRA
Application Number:
JP2019087295A
Publication Date:
November 12, 2020
Filing Date:
May 07, 2019
Export Citation:
Assignee:
JAPAN STEEL WORKS LTD
International Classes:
B29C45/17; B22D17/26; B29C45/64; B29C45/76; H02M7/493
Domestic Patent References:
| JP2003153588A | 2003-05-23 | |||
| JP2012076454A | 2012-04-19 | |||
| JPH08108457A | 1996-04-30 | |||
| JP2014019009A | 2014-02-03 | |||
| JP2017019173A | 2017-01-26 | |||
| JP2006254574A | 2006-09-21 | |||
| JPH03261877A | 1991-11-21 |
Attorney, Agent or Firm:
Yoshiaki Sugiya
Hiromichi Sugiya
Hiromichi Sugiya