Injection device control method and injection molding system
AssigneeSodick Co., Ltd.
InventorTadashi MORIKAWA
Life of this patent
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Abstract
Provided are an injection device control method, which is a control method for an injection device including a first cylinder and a second cylinder, and an injection molding system, in which an injection molding is performed with a set temperature of a heater that heats the second cylinder, a rotation speed of a screw in the second cylinder, and a cycle time as parameters. An estimated value (Q2) of energy input from the heater to a molding material and an estimated value (Q3) of energy input from the screw for shearing of the molding material are calculated, and a ratio between (Q2) and (Q3) is visualized and presented to an operator.
Claims9
An injection device control method, which is a control method for an injection device comprising:
- a first cylinder having an injection shaft, and a second cylinder connected to the first cylinder via a communication path,
- wherein the method comprises:
- trial steps and parameter update steps that are alternately performed;
- and
- a presentation step,
- each of the trial steps comprising:
- a molding step;
- and
- a calculation step,
- wherein in the molding step, an injection molding is performed with a set temperature of a heater that heats the second cylinder, a rotation speed of a screw disposed in the second cylinder, and a cycle time as parameters, and
- in the calculation step, Q2, which is an estimated value of energy input from the heater to a molding material, and Q3, which is an estimated value of energy input from the screw for shearing of the molding material, are calculated, where the Q2 and the Q3 are respectively calculated based on power consumed by heating by the heater in the molding step and power consumed by rotation of the screw in the molding step,
- in the parameter update step, a value of at least one of the parameters is changed;
- and
- in the presentation step, a ratio between the Q2 and the Q3 for each of the trial steps is visualized and presented to an operator.
An injection molding system, comprising:
- an injection device;
- and
- a control device connected to the injection device,
- wherein the injection device comprises:
- a first cylinder having an injection shaft;
- a second cylinder connected to the first cylinder via a communication path;
- a heater installed on an outer peripheral surface of the second cylinder;
- and
- a screw disposed in the second cylinder, and
- the control device comprises:
- at least one memory storing a program in which instructions are recorded;
- at least one processor configured to execute the instructions as a support to an operator for work;
- and
- a display device,
- wherein the support comprises:
- trial steps and parameter update steps that are alternately performed;
- and
- a presentation step,
- each of the trial steps comprising:
- a molding step;
- and
- a calculation step;
- wherein in the molding step, an injection molding is performed with a set temperature of the heater, a rotation speed of the screw, and a cycle time as parameters, and
- in the calculation step, Q2, which is an estimated value of energy input from the heater to a molding material, and Q3, which is an estimated value of energy input from the screw for shearing of the molding material, are calculated, where the Q2 and the Q3 are respectively calculated based on power consumed by heating by the heater in the molding step and power consumed by rotation of the screw in the molding step,
- wherein in the parameter update step, a value of at least one of the parameters is changed;
- and
- in the presentation step, a ratio between the Q2 and the Q3 for each of the trial steps is visualized and presented to the operator.
Dependencies are inferred from the claim text.