Other

Incoe Corporation

Dave Reitan

John W Tarr

An injection molding machine [10] for molding plastic parts by injecting a molten plastic through a plurality of valve gates [31] into a mold cavity by reciprocation of a helical screw [16]. A linear position sensor [34] positioned on the machine to detect the position of the helical screw [16] and control the opening and closing of the gates [31] based on the detected position of the screw [16]. A computer is in communication with the valve gates and the position sensor to monitor the position and activate the opening and closing of the valve gates [31]. A pressure transducer is associated with the mold cavity and in communication with the computer [32] as an alternate or additional method for controlling the opening and closing of the valve gates [31].

Injection molding system with sequential gate control

An injection molding machine �10! for molding plastic parts by injecting a molten plastic through a plurality of valve gates �31! into a mold cavity by reciprocation of a helical screw �16!. A linear position sensor �34! positioned on the machine to detect the position of the helical screw �16! and control the opening and closing of the gates �31! based on the detected position of the screw �16!. A computer is in communication with the valve gates and the position sensor to monitor the position and activate the opening and closing of the valve gates �31!. A pressure transducer is associated with the mold cavity and in communication with the computer �32! as an alternate or additional method for controlling the opening and closing of the valve gates �31!.

Growing community of inventors

Clinton Township, MI, United States of America

Dave Reitan