INJECTION MOLDING MACHINE - SUMITOMO HEAVY INDUSTRIES

Title:

INJECTION MOLDING MACHINE

Document Type and Number:

Japanese Patent JP2018058214

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide an injection molding machine which suppresses thermal fatigue fracture of a current circuit.SOLUTION: The injection molding machine comprises a three-phase AC motor for driving a movable portion, and a control device for supplying current to the three-phase AC motor on the basis of a difference between an actual value and a set value of the physical quantity to be controlled. The control device supplies an electric current to the three-phase AC motor on the basis of a balance between the difference between the actual value and the set value of the physical quantity and the magnitude of the current instantaneous value in each phase of the three-phase AC motor.SELECTED DRAWING: Figure 4

More Like This:

JPH0780886	ELECTRICALLY-DRIVEN INJECTION MOLDING MACHINE
JP4137361	Drive control method and device for hydraulic pump drive motor in injection molding machine

Inventors:

HOTTA DAIGO
MIZUNO HIROYUKI

Application Number:

JP2016195067A

Publication Date:

April 12, 2018

Filing Date:

September 30, 2016

Export Citation:

Click for automatic bibliography generation Help

Assignee:

SUMITOMO HEAVY INDUSTRIES

International Classes:

B29C45/03

Attorney, Agent or Firm:

Tadashige Ito
Tadahiko Ito

Previous Patent: A shaping apparatus, a capturing device of a scattering object, and a capturing method of a scatteri...

Next Patent: Injection molding machine