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
Method for radiation sterilization of medical devices
Apparatus, system, and method for non-interruptively updating firmware on a redundant hardware controller
Method and apparatus of motion vector prediction with extended motion vector predictor
Upper surface of a skateboard deck
Image forming apparatus, information processing method, and storage medium for generating screen information
Mobile application for calendar sharing and scheduling
System and method for selecting a video encoding format based on feedback data
  Randomly Featured Patents
Motorboat
Imaging system
Magnetoresistive head
Heat exchanger of condensing boiler for heating and hot-water supply
Soybean variety XBP29002
Rotary heat sealer
Low power linear transmit/receive (T/R) module
Epoxy resin curing agent of polyethylene polyamine-monoglycidyl ether adduct and amine compound
Method and device for diagnosis using an oscillating airflow
Method for provisioning an apparatus connected contactless to a mobile device