Intelligent compression failure preventing device for bottle cap injection molding die

The utility model relates to an intelligent compression failure preventing device for a bottle cap injection molding die. The device comprises a first supporting plate, a second supporting plate, an upper die, a lower die, two upper guide rods parallel to each other and two lower guide rods parallel to each other, wherein the lower die is provided with a die column and a positioning column; an ultrasonic emitting probe is arranged right above the die column and is fixedly arranged through an upper cross beam which is fixedly arranged between the two upper guide rods; an ultrasonic receiving probe is arranged right below the die column and is fixedly arranged through a lower cross beam which is fixedly arranged between the two lower guide rods. The intelligent compression failure preventing device for the bottle cap injection molding die provided by the utility model detects whether the die column has foreign matters or generates position deviation by adopting an ultrasonic detection method or not, so that the quality of the next die can be effectively prevented from being affected as a result of fragments of the previous die or die placement during injection molding and die compression, and the die can be prevented from being damaged during injection molding as a result of die deviation.