초록 ▼

A product acceptance/rejection judgment method which always ensures accurate judgment whether a product is acceptable or not even when an injection molding machine is operated in different operating environments is implemented by a processor (22) of a numerically controlled device (20). When the pro

A product acceptance/rejection judgment method which always ensures accurate judgment whether a product is acceptable or not even when an injection molding machine is operated in different operating environments is implemented by a processor (22) of a numerically controlled device (20). When the processor determines that it should perform, in addition to a normal product acceptance/rejection judgment based on molding process parameters, an auxiliary product acceptance/rejection judgment based on at least one operating parameter which directly indicates an injection molding machine operating environment characteristic involved in the acceptance/rejection judgment of the product, the processor reads output data from an A-D converter (11, 12 or 13) which data corresponds to the actual value of at least one operating parameter detected by an appropriate die temperature sensor (8), open air temperature sensor (9) or a wind velocity sensor (10). If an actual value of any one of the operating parameters deviates from the tolerance limit, and the processor determines that a molding failure may have occurred, the processor issues a failure signal. If all actual values of at least one operating parameter are within the tolerance limits, then the normal product acceptance/rejection judgment process is further implemented.

대표청구항 ▼

A product acceptance/rejection judgment method for an injection molding machine, comprising the steps of: (a) detecting at least one operating parameter value which directly indicates an ambient property of an injection molding machine operating environment involved in determining whether a product

A product acceptance/rejection judgment method for an injection molding machine, comprising the steps of: (a) detecting at least one operating parameter value which directly indicates an ambient property of an injection molding machine operating environment involved in determining whether a product is acceptable or not; and (b) determining that a molding failure has occurred when the at least one operating parameter value detected in step (a) deviates from tolerance limits thereof.