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
Alternate source programming
Heteroleptic iridium complexes as dopants
Epilation apparatus
Mobile terminal and method for changing page thereof
Method and system for quantifying viewer awareness of advertising images in a video source
Block polymers and their process of preparation
Tire for motorcycle
  Randomly Featured Patents
Dialog box positioning
Laser maintaining and repairing apparatus
Transistors with laterally extended active regions and methods of fabricating same
Delaying the gelation of water soluble polymers
Pneumatic bicycle seat assembly
Vacuum cleaner or the like
Process and device for sorting flat postal items
Method for the non-destructive evaluation of prestressed concrete structures
Light sensitive o-quinone diazide containing transfer composition
Load indicating member with identifying mark