Method for moving a movable platen

A molding machine, in particular an injection molding machine or an injection press, comprising

• a machine frame with a longitudinal axis of the molding machine,
• a stationary mold mounting plate arranged on the machine frame, wherein the stationary mold mounting plate has a rectangular orientation relative to the longitudinal axis of the molding machine,
• a movable mold mounting plate being movable relative to the machine frame, wherein the movable mold mounting plate has a rectangular orientation relative to the longitudinal axis of the molding machine,
• a drive device for moving the movable mold mounting plate,
• at least two, preferably four, guiding tie bars which penetrate the mold mounting plates, and
• an injection device for injecting plastic melt into a cavity of a molding tool mounted to the mold mounting plates,
• comprising
• a detecting device for detecting a value which represents a tilting of at least one of the mold mounting plates from the rectangular orientation relative to the longitudinal axis of the molding machine during a travelling movement of the movable mold mounting plate,
• a comparing unit for comparing the value representing the tilting with a comparative value and
• an output device for outputting an exceeding signal when the value representing the tilting reaches or exceeds the comparative value.