Electric plasticization drive method and apparatus based on direct back-pressing feed back control

• Main Authors: WANG JUE, SHI YOUYOU, YUAN WEIMING, XU ZHONGBIN, CAI ZHOUYONG, ZHENG SUXIA, ZHOU JUDONG, LUO YUANQIANG, HUANG XIAOBO
• Format: Patent
• Language: Chinese; English
• Published: 21.07.2010
• Subjects: 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

The invention discloses an electric plasticization driving method and a device for direct backpressure feedback control. The device comprises an injection servo motor, a gauging servo motor, an electric plasticization actuating mechanism, and a controller; wherein, the electric plasticization actuating mechanism comprises a screw, a gauging gear, a bearing, a pressure sensor, a screw mandrel and an injection gear; the gauging gear is arranged on the screw; the bearing and the pressure sensor are arranged at the end part of the screw; a bearing support cavity structure is arranged at one end of the screw mandrel; the injection gear is arranged on the screw mandrel. The method comprises the steps as follows: the screw mandrel is designed to adopt the bearing support cavity structure which is arranged at the front end of the screw mandrel, the screw butts against the front end of the screw mandrel through the bearing, and the pressure sensor is arranged in the joint between the screw andthe screw mandrel; based