公开(公告)号：US5052909A

公开(公告)日：1991-10-01

申请号：US616752

申请日：1990-11-16

申请人： Ronald A. Hertzer ,  Edward A. Chorey ,  Harold J. Faig

发明人： Ronald A. Hertzer ,  Edward A. Chorey ,  Harold J. Faig

IPC分类号： B29C45/82

CPC分类号： B29C45/82 ,  B29C2045/824 ,  B29C2045/826

摘要： A hydraulic injection molding machine incorporates a pump driven by a variable speed motor preferably of the brushless DC type. The machine controller outputs driving signals to adjust the speed of the motor so that the flow delivered by the pump substantially matches the hydraulic demand imposed during each phase of the machine operating cycle. The pump is preferably a variable displacement type and is connected to a fast responding pump control for selectively carrying out pressure compensation or flow compensation. The values of the motor driving signals are calculated so that the motor/pump combination is operated at or near maximum efficiency except when the pump control varies the displacement of the pump to effect pressure or flow compensation. Hydraulic transient response is further improved by connecting the output of the pump to an accumulator by way of a check valve.

公开(公告)号：US5362222A

公开(公告)日：1994-11-08

申请号：US113627

申请日：1993-08-31

申请人： Harold J. Faig ,  Ronald M. Sparer

发明人： Harold J. Faig ,  Ronald M. Sparer

IPC分类号： B29C45/66 ,  B29C45/50 ,  B29C45/76 ,  B29C45/77 ,  B29C45/80 ,  G05B19/414

CPC分类号： B29C45/7666 ,  B29C45/77 ,  B29C45/80 ,  G05B19/4144 ,  B29C2045/1792 ,  G05B2219/34244 ,  G05B2219/41322 ,  G05B2219/45244

摘要： An injection molding machine utilizing vector controlled AC induction motors in its servomechanism drive systems. Vector controlled AC induction motors provide a cost effective high power drive system which superior performance capabilities. Further system efficiencies are realized when the control is configured to run multiple motors by multiplexing the computer controller circuits for the power sections of each motor.

摘要翻译： 一种在其伺服机构驱动系统中利用矢量控制的AC感应电机的注塑机。 矢量控制的交流感应电动机提供了具有优异性能的高性价比的大功率驱动系统。 当控制被配置为通过复用每个电动机的功率部分的计算机控制器电路来运行多个电动机时，实现进一步的系统效率。

公开(公告)号：US4988273A

公开(公告)日：1991-01-29

申请号：US370669

申请日：1989-06-23

申请人： Harold J. Faig ,  Ronald M. Sparer

发明人： Harold J. Faig ,  Ronald M. Sparer

IPC分类号： H02P6/22 ,  B29C45/50 ,  B29C45/64 ,  B29C45/66 ,  B29C45/70 ,  B29C45/76 ,  B29C45/77 ,  H02P6/04

CPC分类号： H02P6/04 ,  B29C45/5008 ,  B29C45/66 ,  B29C45/70 ,  B29C45/77 ,  B29C2045/1792 ,  H02P2209/07

摘要： An injection molding machine utilizing brushless DC motors in its servomechanism drive systems. Brushless DC motors provide a cost effective high power drive system which has the simplicity of control of brush-type DC motors. By utilizing higher resolution encoders and controlling pressure with the servomotor velocity control loop, motor cogging and zero velocity oscillatiions are minimized.

摘要翻译： 一种在伺服机构驱动系统中使用无刷直流电动机的注塑机。 无刷直流电动机提供了具有成本效益的高功率驱动系统，其具有刷式直流电动机的简单控制。 通过利用更高分辨率的编码器并通过伺服电机速度控制回路来控制压力，电机齿槽和零速度振荡被最小化。

公开(公告)号：USD341602S

公开(公告)日：1993-11-23

申请号：US659150

申请日：1991-02-22

申请人： Harold J. Faig ,  M. Jay Moore ,  Ronald A. Hertzer ,  Van K. Joyner

设计人： Harold J. Faig ,  M. Jay Moore ,  Ronald A. Hertzer ,  Van K. Joyner