INJECTION DEVICE, INJECTION MOLDING MACHINE, AND METHOD FOR CONTROLLING TEMPERATURE IN CYLINDER OF INJECTION DEVICE

PROBLEM TO BE SOLVED: To provide an injection device which can prevent the occurrent of burning of a molding material when the operation of the injection device is stopped. SOLUTION: After the operation of the injection device is stopped, when a holding time passes while the operation is stopped, th...

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Bibliographische Detailangaben
Hauptverfasser:	TASHIRO TAKEO, OGAMI MASAYASU
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an injection device which can prevent the occurrent of burning of a molding material when the operation of the injection device is stopped. SOLUTION: After the operation of the injection device is stopped, when a holding time passes while the operation is stopped, the set temperature of a heater 4 is changed automatically to a first waiting temperature lower than the temperature during the operation, and the temperature of inside the cylinder 1 is lowered. While the operation of the injection device is stopped, even when a molten resin of the molding material is retained for a long time in the cylinder 1, the occurrence of burning in the molten resin by the heat of the heater 4 is suppressed. In this way, deterioration in the quality of a molding by the occurrence of burning can be prevented. COPYRIGHT: (C)2006,JPO&NCIPI