Method for determining position of tool, e.g. in injection molding machines, uses position sensor and velocity sensor to feed tool position data to control unit comparing actual and desired tool positions

摘要

Method for determining the position of a tool (1) fitted with a drive system (5) uses position sensor and a velocity sensor (6a, 6b) which feeds data concerning the tool position to a control unit (7). This information is used to determine the actual position of the tool, which is compared with the desired position. Method for determining the position of a tool (1) fitted with a drive system (5) uses position sensor and a velocity sensor (6a, 6b) which feeds data concerning the tool position to a control unit (7). This information is used to determine the actual position of the tool, which is compared with the desired position. The drive is then activated and the position of the tool monitored throughout its movement, which is terminated when the desired position is reached. The difference between actual and desired positions is stored and used to calculate subsequent desired positions.