Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method of zero adjustment of a load cell for detecting back pressure of a screw in an electric injection molding machine










Image Number 3 for United States Patent #6615637.

A screw is incorporated into a heating barrel. A ball screw is connected to a rear end portion of the screw through a load cell, and a servomotor for injection is connected to the ball screw. First, the heating barrel is retreated and separated from a mold, and the screw is moved to the half stroke position. After the screw is advanced for a preset period of time, the servomotor is stopped by automatic decompression to detect an output of the load cell. Similarly, after the screw is retreated for a preset period of time, the servomotor is stopped by automatic decompression to detect an output of the load cell. An average of outputs of the load cell after the screw advances and retreats is calculated and considered to be an output of the load cell under no-load conditions, thereby performing zero adjustment of the load cell.








 
 
  Recently Added Patents
Electronic component mounting machine and operating instruction method for the same
Implantable medical devices including elongated conductor bodies that facilitate device and lead configuration variants
Anti-FGFR3 antibodies and methods using same
Switched capacitor hold-up scheme for constant boost output voltage
Liquid crystal display apparatus
Methods and systems for managing electronic messages
Print system
  Randomly Featured Patents
High power integrated circuit device having bump pads
Flange connection between a longitudinal beam of a vehicle and a carrier element that can be mounted to it
Movable objective lens assembly for an optical microscope and optical microscopes having such an assembly
Lifting apparatus
Magnetic disc storage case
Film forming composition, insulating film, and electronic device
Support and related shelf
Managing an audio network
Artificial stereophonic circuit and artificial stereophonic device
Image processing apparatus, control method therefor, and program