Control device of injection molding machine and method of setting mold clamping force
AssigneeUbe Machinery Corporation, Ltd.
InventorsAkio OKAMOTO, Yuuichirou ARIMA, Kazuaki MIYAMOTO, Yuuichirou FUKUDA, Fumihiko SHIMIZU
Life of this patent
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Abstract
A control device of an injection molding machine, the injection molding machine including: a mold clamping device that advances and retracts a movable mold with respect to a fixed mold; and an injection device that injects and fills a molten material into a cavity formed between both the molds, the control device including: a display unit that displays a setting screen for setting molding conditions of the injection molding machine; and a setting unit that sets the molding conditions based on information displayed on the setting screen.
Claims11
A control device of an injection molding machine, the injection molding machine comprising:
- a mold clamping device that advances and retracts a movable mold with respect to a fixed mold;
- and an injection device that injects and fills a molten material into a cavity formed between both the molds, the control device comprising:
- a display unit that displays a setting screen for setting molding conditions of the injection molding machine;
- and
- a setting unit that sets the molding conditions based on information displayed on the setting screen,
- the setting screen having:
- a first display column that displays a plurality of screw positions from a measurement completion position of a screw of the injection device to a VP switching position of the screw of the injection device;
- and a second display column that displays mold clamping forces generated by the mold clamping device in such a manner that the mold clamping forces are associated with the plurality of screw positions displayed in the first display column, and
- the setting unit setting the molding conditions in such a manner that each of the plurality of screw positions displayed in the first display column has associated with it the mold clamping force displayed in the second display column as a mold clamping force to be generated when the screw has reached the screw position.
A method of setting a mold clamping force being a method of setting a mold clamping force of a mold clamping device by a control device of an injection molding machine, the injection molding machine comprising:
- the mold clamping device that advances and retracts a movable mold with respect to a fixed mold;
- and an injection device that injects and fills a molten material into a cavity formed between both the molds,
- the control device having:
- a display unit that displays a setting screen for setting molding conditions of the injection molding machine;
- and a setting unit that sets the molding conditions based on information displayed on the setting screen, and
- the setting screen having:
- a first display column that displays a plurality of screw positions from a measurement completion position of a screw of the injection device to a VP switching position of the screw of the injection device;
- and a second display column that displays mold clamping forces generated by the mold clamping device in such a manner that the mold clamping forces are associated with the plurality of screw positions displayed in the first display column,
- the method of setting a mold clamping force including:
- (a) a first setting step in which the plurality of screw positions from the measurement completion position of the screw to the VP switching position of the screw are displayed in the first display column to be set;
- (b) a second setting step in which setting is performed in such a manner that a screw position that has been selected (in order from a measurement completion position side), of the plurality of screw positions that have been set has associated with it the mold clamping force displayed in the second display column;
- (c) an injection step in which mold clamping is performed with the mold clamping force that has been set, and the screw is advanced to the selected screw position from the measurement completion position to have the molten material filled into the cavity;
- and
- (d) a judgment receiving step in which a molded article that has been extracted from the cavity after the injection step receives a judgment result of presence/absence of a defect,
- a mold clamping force in the molding conditions being set by it being repeated for each of the plurality of screw positions that when a defect has been found to be present in the molded article in the judgment receiving step of above-described (d), the mold clamping force that is set associated with a screw position where a defect has been confirmed is displayed and reset increased over a time of defect confirmation in the second setting step of above-described (b), whereupon the injection step of above-described (c) and the judgment receiving step of above-described (d) are re-performed for the screw position where the defect has been confirmed.
Dependencies are inferred from the claim text.