The utility model relates to the field of blow molding machines, in particular to a mold locking device for a large plastic hollow mold. The mold locking device comprises a mold composed of a half mold I and a half mold II, and is characterized in that the half mold I and the half mold II are respectively provided with a first telescopic device and a second telescopic device. The first telescopic device comprises a clamping rod and a first driving device for driving the clamping rod to reciprocate, and one end of the clamping rod away from the first driving device is provided with a limiting part. The second telescopic device comprises a clamping plate and a second driving device for driving the clamping plate to reciprocate, and one end of the clamping plate away from the second driving device is provided with a slot, the width of which is adapted to the outer diameter of the clamping rod. The clamping rod is perpendicular to the clamping plate and arranged opposite to the slot. The technical problem to be solved by the utility model is to provide a mold locking device for a large plastic hollow mold in view of the disadvantages of complex design, large volume, high manufacturing cost and high requirement on the compressive strength of mold plates of the existing hollow mold locking devices in the prior art.
Country Code: CN
Application Number: CN202123167294.1
