Die assembly mechanism

The invention relates to the technical field of die-casting machine equipment, in particular to a die closing mechanism. The mechanism comprises a tail plate, a middle plate, a head plate, a driving rod and pull rods, the two ends of the tail plate and the two ends of the head plate are connected through the two pull rods respectively, and the two ends of the middle plate are connected with the tail plate through two first connecting rods respectively; the first connecting rod comprises a front connecting rod and a rear connecting rod which are movably connected, and when the mold closing mechanism is in a mold locking state, a movable connecting fulcrum between the two front connecting rods and the two rear connecting rods is located between the two pull rods; the driving rod penetrates through the tail plate and is connected with the rear connecting rod through two second connecting rods, and the driving rod sequentially drives the second connecting rods, the rear connecting rod and the front connecting rod