US 2023/0132160 A1Published application

Control device and control method for injection molding machine

AssigneeFanuc Corporation

InventorsRyou OOSAKA, Atsushi HORIUCHI

Life of this patent

Estimating the term…

Loading patent…

Abstract

Provided are a control device and a control method for an injection molding machine that carries out a punching step with high reliability. A control device for an injection molding machine, the control device being equipped with: a mold opening/closing unit that integrally moves a fixed mold and a moving mold of a mold of the injection molding machine in the opening direction from a state where the mold is closed, thereby creating a gap between the fixed mold and a mounting plate; an insertion member control unit for inserting an insertion member into the gap; an assessment unit for assessing whether the insertion member has been inserted into the gap; and a push control unit for pushing out a punching pin when the insertion member has been assessed to have been inserted into the gap.

Claims10

Dependent claims

A control device for an injection molding machine, the injection molding machine comprising a mold, the mold including a fixed mold in which a first insert hole is provided and a movable mold configured to form a cavity together with the fixed mold, the mold being configured to be opened and closed by causing the fixed mold and the movable mold to separate away from and come into contact with each other;

wherein the injection molding machine further comprises:
a movable platen configured to support the movable mold, and configured to move along an opening/closing direction of the mold and thereby cause the movable mold to separate away from and come into contact with the fixed mold;
a stationary platen configured to support the fixed mold;
a parting lock configured to connect the fixed mold and the movable mold at a time when the movable platen moves in a closing direction of the mold, and to release the connection at a time when the mold is opened;
a mounting plate configured to mount the fixed mold on the stationary platen;
a punching pin that, in order to form a molded product including at least one of a hole or a cutout portion therein, is configured to be pushed out in a manner so as to punch out a portion of a resin inside the cavity toward the mounting plate via the first insert hole;
and
an insertion member configured to be inserted between the fixed mold and the mounting plate;
and
wherein the control device comprises:
a mold opening/closing unit that, by causing the fixed mold to move integrally with the movable mold in an opening direction of the mold from a state in which the mold is closed, is configured to create a gap between the fixed mold and the mounting plate;
an insertion member control unit configured to insert the insertion member into the gap;
a determination unit configured to determine whether or not the insertion member has been inserted into the gap;
and
a pushing out control unit configured to push out the punching pin in a case that it is determined that the insertion member has been inserted into the gap.

12 more elements

A control method for an injection molding machine, the injection molding machine comprising a mold, the mold including a fixed mold in which a first insert hole is provided and a movable mold configured to form a cavity together with the fixed mold, the mold being configured to be opened and closed by causing the fixed mold and the movable mold to separate away from and come into contact with each other;

wherein the injection molding machine further comprises:
a movable platen configured to support the movable mold, and configured to move along an opening/closing direction of the mold and thereby cause the movable mold to separate away from and come into contact with the fixed mold;
a stationary platen configured to support the fixed mold;
a parting lock configured to connect the fixed mold and the movable mold at a time when the movable platen moves in a closing direction of the mold, and to release the connection at a time when the mold is opened;
a mounting plate configured to mount the fixed mold on the stationary platen;
a punching pin that, in order to form a molded product including at least one of a hole or a cutout portion therein, is configured to be pushed out in a manner so as to punch out a portion of a resin inside the cavity toward the mounting plate via the first insert hole;
and
an insertion member configured to be inserted between the fixed mold and the mounting plate;
and
wherein the control method comprises:
a gap opening step of creating a gap between the fixed mold and the mounting plate, by causing the fixed mold to move integrally with the movable mold in an opening direction of the mold from a state in which the mold is closed;
an insertion control step of inserting the insertion member into the gap;
an insertion determination step of determining whether or not the insertion member has been inserted into the gap;
and
a punching step of pushing out the punching pin in a case that it is determined that the insertion member has been inserted into the gap.

12 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/914,682Filed 22 Mar 2021
Priority: JP 2020-05752927 Mar 2020
Published: 27 Apr 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

B29C 45/80
Measuring, controlling or regulating: of relative position of mould parts
B29C 45/14008
Incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles: inserting articles into the mould
B29C 45/2628
Moulds: with mould parts forming holes in or through the moulded article, e.g. for bearing cages
B29C 45/5675
Using mould parts movable during or after injection, e.g. injection-compression moulding: for making orifices in or through the moulded article

Family

No related US applications are recorded in the indexed filing history.

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key