| 摘要 |
The invention relates to a system for monitoring the position of the closing unit of an injection molding machine (1) by bypassing a light curtain used to secure the closing unit and the tool area of the injection molding machine (1), wherein the injection molding machine (1) has at least one molding tool (4, 5, 6) comprising at least two parts, which encloses at least one mold cavity, wherein the injection molding machine (1) has a programmable logic controller (PLC) for controlling the movement monitoring module (MOC) for the indirect monitoring of the position of the closing unit and the position of the molding tool parts (4, 5, 6) in relation to one another, wherein distance measuring sticks (10, 12, 13) are provided as sensors, the signals of which are processed via the MOC in the PLC, wherein the molding tool part following the build-up of the closing pressure and the mold filling operation, in the following bumping step must maintain a spacing gap (16) in relation to each other, to which a specific maximum value is assigned, at which, if exceeded, the injection molding machine (1) switches off. |
