Kneading extrusion apparatus, its control method, and method for manufacturing resin compound

A kneading extrusion apparatus comprising:

• a first feeder configured to supply a resin raw material;
• a second feeder configured to supply a filler;
• an extruder configured to mix and knead the resin raw material supplied from the first feeder with the filler supplied from the second feeder while melting the resin raw material;
• and
• a controller configured to control the first and second feeders and the extruder, wherein
• when the controller stops the extruder, the controller:
• reduces an amount of the resin raw material to be supplied with a decrease in the rotation speed of the screw of the extruder based on a predetermined stopping-time supply pattern for the resin raw material;
• and
• reduces the amount of the filler to be supplied with the decrease in the rotation speed of the screw and stops the supply of the filler before stopping the supply of the resin raw material based on a predetermined stopping-time supply pattern for the filler.

A method for controlling a kneading extrusion apparatus, the kneading extrusion apparatus comprising:

• a first feeder configured to supply a resin raw material;
• a second feeder configured to supply a filler;
• and
• an extruder configured to mix and knead the resin raw material supplied from the first feeder with the filler supplied from the second feeder while melting the resin raw material, wherein
• when the extruder is started in order to manufacture a resin compound from the mixed and kneaded resin raw material and the filler, a computer:
• increases an amount of the resin raw material to be supplied with an increase in a rotation speed of a screw of the extruder based on a predetermined starting-time supply pattern for the resin raw material;
• and
• starts, after the supplying of the resin raw material is started, to supply the filler, and increases an amount of the filler to be supplied with the increase in the rotation speed of the screw based on a predetermined starting-time supply pattern for the filler.

A method for controlling a kneading extrusion apparatus, the kneading extrusion apparatus comprising:

• a first feeder configured to supply a resin raw material;
• a second feeder configured to supply a filler;
• and
• an extruder configured to mix and knead the resin raw material supplied from the first feeder with the filler supplied from the second feeder while melting the resin raw material, wherein
• when the extruder is stopped, the computer:
• reduces an amount of the resin raw material to be supplied with a decrease in the rotation speed of the screw of the extruder based on a predetermined stopping-time supply pattern for the resin raw material;
• and
• reduces the amount of the filler to be supplied with the decrease in the rotation speed of the screw and stops the supply of the filler before stopping the supply of the resin raw material based on a predetermined stopping-time supply pattern for the filler.

A method for manufacturing a resin compound by an extruder, comprising mixing and kneading a resin raw material supplied from a first feeder with a filler supplied from a second feeder while melting the resin raw material, wherein

• when the extruder is started in order to manufacture the resin compound, a computer:
• increases an amount of the resin raw material to be supplied with an increase in a rotation speed of a screw of the extruder based on a predetermined starting-time supply pattern for the resin raw material;
• and
• starts, after the supplying of the resin raw material is started, to supply the filler, and increases an amount of the filler to be supplied with the increase in the rotation speed of the screw based on a predetermined starting-time supply pattern for the filler.

A method for manufacturing a resin compound by an extruder, comprising mixing and kneading a resin raw material supplied from a first feeder with a filler supplied from a second feeder while melting the resin raw material, wherein

• when the extruder is stopped, a computer:
• reduces an amount of the resin raw material to be supplied with a decrease in the rotation speed of the screw of the extruder based on a predetermined stopping-time supply pattern for the resin raw material;
• and
• reduces the amount of the filler to be supplied with the decrease in the rotation speed of the screw and stops the supply of the filler before stopping the supply of the resin raw material based on a predetermined stopping-time supply pattern for the filler.