Patent ID: 6801831
Filing Date: 2004-10-05
Classification: B29C

Abstract:
A method for setting an injection speed control pattern profile into a memory of a control apparatus of an injection molding machine, in which a series of stroke position command data necessary for operating one injection filling process are stored together with injection speed command data corresponding to each position, and a plurality of functions for producing each injection speed command data are also stored, the control apparatus controlling actual filling operations by reading out the data in the memory, said method comprising:designating a plurality of co-ordinate points on a plane with co-ordinate axes of an injection stroke position and an injection speed, respectively, each as a point on the injection speed control pattern profile; defining a function suitable to a line connecting between two designated and adjacent points such as a definite straight line or a sectional curve, said connecting line forming a portion of the pattern profile; defining said function as a function to produce the injection speed command data corresponding to the stroke position; calculating a plurality of injection speed command data corresponding to each stroke position between the two designated points by using said function; and storing the calculated data in a first area of memory.