Resin molding system, operating condition control method, and program
AssigneeThe Japan Steel Works, Ltd.
InventorsRyo ISHIGURO, Koichi KIMURA
Life of this patent
Estimating the term…
Abstract
Appropriate operating conditions of a resin molding system are stably set regardless of the user's skill level. A sensor unit that detects a state of a resin is provided in at least one of multiple apparatuses constituting the resin molding system. A control device of the resin molding system searches for operating conditions of the apparatuses constituting the resin molding system based on information output from the sensor unit, and sets the searched operating conditions as new operating conditions. For example, which operating conditions of which apparatus should be changed, how operating conditions should be changed, and in what state of the resin the operating conditions should be changed are set by a user.
Claims15
A resin molding system comprising:
- an extrusion apparatus configured to melt and knead a resin raw material and extrude a molten resin;
- a cooling apparatus configured to cool the extruded molten resin and form the molten resin into a resin film;
- and
- a stretching apparatus configured to stretch the formed resin film,
- the extrusion apparatus having a T-die attached thereto and configured to form the molten resin into a film shape and discharge it, and
- the cooling apparatus being provided with a cooling roll configured to send the molten resin discharged from the T-die toward the stretching apparatus while making the molten resin be in contact with a surface thereof and an air knife configured to blow air to the molten resin being in contact with the surface of the cooling roll,
- wherein the resin molding system further comprises:
- a first sensor configured to output information representing a change in a width of the molten resin between the T-die and the cooling roll;
- a search unit configured to search for operating conditions of the cooling apparatus under which a change in a width of the molten resin formed by the cooling apparatus satisfies a specification, based on the change in the width of the molten resin detected by the information from the first sensor;
- and
- a setting unit configured to set the searched operating conditions as new operating conditions.
An operating condition control method for a resin molding system including an extrusion apparatus configured to melt and knead a resin raw material and extrude a molten resin, a cooling apparatus configured to cool the extruded molten resin and form the molten resin into a resin film, and a stretching apparatus configured to stretch the formed resin film,
- the extrusion apparatus having a T-die attached thereto and configured to form the molten resin into a film shape and discharge it, and
- the cooling apparatus being provided with a cooling roll configured to send the molten resin discharged from the T-die toward the stretching apparatus while making the molten resin be in contact with a surface thereof and an air knife configured to blow air to the molten resin being in contact with the surface of the cooling roll,
- the method comprising:
- detecting a change in a width of the molten resin between the T-die and the cooling roll;
- searching for operating conditions of the cooling apparatus under which a change in a width of the molten resin formed by the cooling apparatus satisfies a specification, based on the detected change in the width of the molten resin;
- and
- setting the searched operating conditions as new operating conditions.
A non-transitory, tangible, computer-readable storage medium storing a program for a resin molding system including an extrusion apparatus configured to melt and knead a resin raw material and extrude a molten resin, a cooling apparatus configured to cool the extruded molten resin and form the molten resin into a resin film, and a stretching apparatus configured to stretch the formed resin film,
- the extrusion apparatus having a T-die configured to form the molten resin into a film shape and discharge it, and
- the cooling apparatus being provided with a cooling roll configured to send the molten resin discharged from the T-die toward the stretching apparatus while making the molten resin be in contact with a surface thereof and an air knife configured to blow air to the molten resin being in contact with the surface of the cooling roll,
- the program causing a computer to function as:
- a search unit configured to search for operating conditions of the cooling apparatus under which a change in a width of the molten resin formed by the cooling apparatus satisfies a specification, based on information representing a change in a width of the molten resin between the T-die and the cooling roll output from a first sensor;
- and
- a setting unit configured to set the searched operating conditions as new operating conditions.
Dependencies are inferred from the claim text.