Control device for injection molding machine and control method for injection molding machine

Patent metadata

Field	Value
Publication number	US-10744693-B2
Application number	US-201816162964-A
Country	US
Kind code	B2
Filing date	Oct 17, 2018
Priority date	Oct 23, 2017
Publication date	Aug 18, 2020
Grant date	Aug 18, 2020

Abstract

A control device of an injection molding machine, for controlling operations of multiple elements operating during the period of mold closing or mold opening, includes: an operation starting condition setting unit for, concerning at least part of the elements, setting an operation starting condition of one of the elements that operates in conjunction with another one thereof by an operator operating an operation unit; a group setting unit for classifying the elements based on the operation starting conditions so that elements operating in conjunction with each other belong to the same group; an operation sequence setting unit for setting order of the operations of the elements belonging to the same group based on the operation starting conditions; and a drive command generator for generating drive commands for driving the injection molding machine so as to cause the elements belonging to the same group to operate in the set order.

First claim

What is claimed is:

1. A control device of an injection molding machine, for controlling operations of multiple elements that operate during a period of mold closing of a mold or during a period of mold opening of the mold in an injection molding machine, the control device comprising:
an operation starting condition setting unit configured to set an operation starting condition of each of the elements that operates during either the period of the mold closing or the mold opening, each operation starting condition based on an input selected by an operator operating an operation unit;
a group setting unit configured to analyze each operation starting condition selected by the operator to create data based on each analyzed operation starting condition, the group setting unit configured to make settings with the created data to classify the multiple elements based on the set operation starting condition of each of the elements so that a first element and a second element that operates in conjunction with the first element belong to a first group and a third element that does not operate in conjunction with the first element belongs to a second group that is different from the first group;
an operation sequence setting unit configured to set order of the operations of the first and second elements of the first group; and
a drive command generator configured to generate drive commands for driving the injection molding machine so as to cause the first and second elements of the first group to operate in the set order while causing the third element of the second group to operate independently from the first and second elements of the first group.

2. The control device of the injection molding machine according to claim 1 ,
wherein
the operation of the first element is one of an operation of a mold core, a mold closing operation, a mold opening operation, an ejector operation, a molded article unloading operation, and a signal output operation for outputting a signal from the injection molding machine to a peripheral device of the injection molding machine.

3. The control device of the injection molding machine according to claim 1 , wherein
the operation of the second element is one of an operation of a mold core, a mold closing operation, a mold opening operation, an ejector operation, a molding cycle starting operation, an injecting operation, a pressure holding operation, a metering operation, and a signal input operation for inputting a signal from a peripheral device of the injection molding machine to the injection molding machine.

4. The control device of the injection molding machine according to claim 1 , wherein:
for multiple cores that operate during either the period of the mold closing or the mold opening, the operation starting condition setting unit is configured to set an operation starting condition of each of the cores; and
the operation of the first element is a setting operation of setting a first core into the mold, and the operation of the second element is a setting operation of setting a second core into the mold, or the operation of the first element is a pulling operation of retracting the first core from the mold, and the operation of the second element is a pulling operation of retracting the second core from the mold.

5. The control device of the injection molding machine according to claim 4 , wherein,
when the operation starting condition of the second core that operates in conjunction with the setting operation of the first core has been set, the operation sequence setting unit is configured to set order of the pulling operation of the first core and the pulling operation of the second core so as to be performed in reverse order of that in which the setting operation of the first core and the setting operation of the second core are performed.

6. A control method for an injection molding machine, of issuing commands for operations of multiple elements that operate during a period of mold closing of a mold or during a period of mold opening of the mold in an injection molding machine, the control method comprising:
an operation starting condition setting step of setting an operation starting condition of each of the elements that operates during either the period of the mold closing or the mold opening, each operation starting condition based on an input selected by an operator operating an operation unit;
a group setting step of analyzing each operation starting condition selected by the operator to create data based on each analyzed operation starting condition and making settings with the created data to classify the multiple elements based on the set operation starting condition of each of the elements so that a first element and a second element that operates in conjunction with the first element belong to a first group and and a third element that does not operate in conjunction with the first element belongs to a second group that is different from the first group;
an operation sequence setting step of setting order of the operations of the first and second elements of the first group; and
a drive command generating step of generating drive commands for driving the injection molding machine so as to cause the first and second elements of the first group to operate in the set order while causing the third element of the second group to operate independently from the first and second elements of the first group.

7. The control method for the injection molding machine according to claim 6 , wherein
the operation of the first element is one of an operation of a mold core, a mold closing operation, a mold opening operation, an ejector operation, a molded article unloading operation, and a signal output operation for outputting a signal from the injection molding machine to a peripheral device of the injection molding machine.

8. The control method for the injection molding machine according to claim 6 , wherein
the operation of the second element is one of an operation of a mold core, a mold closing operation, a mold opening operation, an ejector operation, a molding cycle starting operation, an injecting operation, a pressure holding operation, a metering operation, and a signal input operation for inputting a signal from a peripheral device of the injection molding machine to the injection molding machine.

9. The control method for the injection molding machine according to claim 6 , wherein
for multiple cores that operate during either the period of the mold closing or the mold opening, the operation starting condition setting step sets on operation starting condition of each of the cores; and
the operation of the first element is a setting operation of setting a first core into the mold, and the operation of the second element is a setting operation of setting a second core into the mold, or the operation of the first element is a pulling operation of retracting the first core from the mold, and the operation of the second element is a pulling operation of retracting the second core from the mold.

10. The control method for the injection molding machine according to claim 9 , wherein
when the operation starting condition of the second core that operates in conjunction with the setting operation of the first core has been set, the operation sequence setting step sets order of the pulling operation of the first core and the pulling operation of the second core so as to be performed in reverse order of that in which the setting operation of the first core and the setting operation of the second core are performed.

Assignees

• Fanuc Corp

Inventors

• Tanaka Kazuyoshi
• Maruyama Junpei
• Uchiyama Tatsuhiro

Classifications

• B29C45/762 Primary

  the sequence of operations of an injection cycle · CPC title

• B29C2045/7606

  Controlling or regulating the display unit · CPC title

• B29C2945/76866

  Mould closing · CPC title

• B29C2945/76896

  Ejection · CPC title

• B29C2945/76872

  Mould opening · CPC title