CPC B29C 45/77 (2013.01) [B29C 45/26 (2013.01); B29C 45/50 (2013.01); B29C 45/768 (2013.01); B29C 45/80 (2013.01); B29C 2045/2683 (2013.01); B29C 2945/76006 (2013.01); B29C 2945/7621 (2013.01); B29C 2945/76083 (2013.01); B29C 2945/76187 (2013.01); B29C 2945/76498 (2013.01); B29C 2945/76568 (2013.01); B29C 2945/76595 (2013.01); B29C 2945/76665 (2013.01); B29C 2945/76943 (2013.01)] | 29 Claims |
1. A method of detecting and compensating for a non-operational mold cavity in an injection molding apparatus having a plurality of mold cavities and an injection molding screw or ram, the method comprising:
injecting, via the injection molding screw or ram, a molten thermoplastic material into the plurality of mold cavities;
measuring a first process parameter of the injection molding apparatus at a pre-determined time during or after the injecting, the measuring of the first process parameter comprising measuring a position of the injection molding screw or ram;
based on the first process parameter, determining whether one or more mold cavities of the plurality of mold cavities are non-operational; and
when it is determined that one or more mold cavities are non-operational, automatically adjusting the first process parameter or a second process parameter of the injection molding apparatus.
|