| 摘要 |
PURPOSE:To facilitate elucidation of a cause by discriminating defective molding automatically, by a method wherein an injection pressure waveform and speed waveform at the time of each injection process are compared and monitored with those at the time of optimum injection molding extending over the whole process, data of which are stored in case of deffective molding. CONSTITUTION:Optimum terms in each injection process are made to store in a memory 7. Injection pressure and speed wave forms are detected by sensors 1, 4, which are made to store in memories 3, 6 by making them synchronize with a timing clock signal CK from a clock generating circuit 18 and compared with the memory 7 at the same time. When these detected values have exceeded an allowable range, output signals PD, DV are applied to an OR circuit 10, an action suspension signal is put out of a sequence circuit 17 and data such as pressure, speed, and temperatures of an injection cylinder and mold at that time are made to store in memories 14, 15, 16, which are made into a guide for elucidation of the cause of a deffective molding. |
