公开(公告)号：WO1997013212A1

公开(公告)日：1997-04-10

申请号：PCT/US1996015731

申请日：1996-10-01

Applicant: BARBER-COLMAN COMPANY

Inventor： BARBER-COLMAN COMPANY ,  SPAHR, David, K. ,  TIBBITTS, Dennis, C.

IPC: G06F19/00

CPC classification number: G05B19/416 ,  B29C45/766 ,  B29C45/77 ,  B29C2945/76933 ,  B29C2945/76936 ,  G05B2219/41177 ,  G05B2219/43162 ,  G05B2219/43175

Abstract: An adaptive controller (42) is provided for controlling the velocity of a ram (32) in an injection molding apparatus (14) during the injection stage of the molding cycle. The controller (42) includes two sets of parameters. The first set of parameters defines an open-loop control equation and the second set of parameters defines a closed-loop control equation for controlling the ram (32) velocity. The first and second set of parameters are modified to improve the ram (32) performance and efficiency on the subsequent injection cycle.

Abstract translation: 提供了一种自适应控制器（42），用于在注射成型周期的注射阶段期间控制注射成型设备（14）中的冲头（32）的速度。 控制器（42）包括两组参数。 第一组参数定义了开环控制方程，第二组参数定义了一个用于控制冲程（32）速度的闭环控制方程。 修改了第一组参数和第二组参数，以提高后续注射周期的ram（32）性能和效率。

公开(公告)号：WO1997012744A1

公开(公告)日：1997-04-10

申请号：PCT/US1996015771

申请日：1996-10-01

Applicant: BARBER-COLMAN COMPANY

Inventor： BARBER-COLMAN COMPANY ,  SPAHR, David, K. ,  TIBBITTS, Dennis, C.

IPC: B29C45/57

CPC classification number: B29C45/77 ,  B29C45/82 ,  B29C2045/776 ,  B29C2945/76006 ,  B29C2945/76083 ,  B29C2945/76113 ,  B29C2945/762 ,  B29C2945/76204 ,  B29C2945/76257 ,  B29C2945/76287 ,  B29C2945/76498 ,  B29C2945/76545 ,  B29C2945/76561 ,  B29C2945/76785 ,  B29C2945/76933 ,  B29C2945/76936 ,  B29C2945/76943

Abstract: An adaptive controller (42) is provided for controlling the transition, in an injection molding apparatus (10), from the injection stage to the packing stage. The controller operates by controlling the velocity of the ram (32) during the injection stage, and controlling the ram pressure during the packing stage. The controller (42) anticipates the transition from the injection stage to the packing stage by monitoring the ratio of pressure to velocity. The divergence of this ratio forecasts the onset of the packing stage. At this time, a pressure relief valve (46) is preset in anticipation of the packing stage, to prevent a pressure spike during the transition period. The flow control valve (40) is held constant during the transition.

Abstract translation: 提供了一种自适应控制器（42），用于控制在注射成型设备（10）中从注射阶段到包装阶段的过渡。 控制器通过在喷射阶段控制压头（32）的速度并在包装阶段控制压头压力来操作。 控制器（42）通过监测压力与速度的比率来预期从注射阶段到包装阶段的过渡。 这个比例的差异预示着包装阶段的开始。 此时，为了防止在过渡期间的压力尖峰，预先设置压力释放阀（46），以预期包装阶段。 流量控制阀（40）在过渡期间保持恒定。