CONTROL APPARATUS AND METHODS FOR MOLDING MACHINERY

Apparatus and methods wherein the directly sensed temperature of plasticized material discharged from a barrel is employed for controlling the temperature of the portion of the barrel adjacent to the discharge of the plasticized material therefrom and, alternatively, as during machine warm-up, the t...

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Bibliographische Detailangaben
1. Verfasser:	EVANS W,US
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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Beschreibung
Zusammenfassung:	Apparatus and methods wherein the directly sensed temperature of plasticized material discharged from a barrel is employed for controlling the temperature of the portion of the barrel adjacent to the discharge of the plasticized material therefrom and, alternatively, as during machine warm-up, the temperature of such barrel portion is controlled independently of said sensed temperature. Also, the temperature of a plurality of other portions of the barrel is controlled by a single control device; and back pressure on the screw during movement away from the barrel discharge and the screw driven rotation are controlled by a single control device.