Method and apparatus for monitoring abnormality of mold-clamping mechanism of molding machine

摘要

A method for monitoring abnormality of a mold-clamping mechanism of a molding machine and for estimating the amount of abrasion in the toggle mechanism without disassembling a mold-clamping mechanism in the molding machine to allow manual inspection. The timing and content of maintenance to be performed is determined based on measurements of stress at the toggle mechanism, from which the amount of abrasion in the toggle is calculated. This method makes it possible to operate the machine until the time just before a product quality deficiency occurs, thereby allowing maintenance to be performed with a minimum of machine disassembly for manual inspection.