The present application relates to a split combined blow pin for a hollow blow molding mold, belonging to the technical field of hollow blow molding molds. The split combined blow pin comprises: a blow pin body, one end of which is provided with a screw rod, and the screw rod is in threaded connection with the machine table of the hollow blow molding machine; a blow pin head mounted at the other end of the blow pin body; a shearing ring detachably connected to the blow pin body. After the blow pin head is inserted into the preform in the hollow blow molding mold, the shearing ring can abut against the inclined surface at the mouth of the preform. Blow air cavities communicated in sequence are formed in the blow pin body, the screw rod and the blow pin head, and both ends of the blow air cavities are communicated with the outside. Since the shearing ring replaces the shearing part and is detachably connected with the blow pin body, the shearing ring can be conveniently replaced after being worn without replacing the whole blow pin, thereby prolonging the service life of the blow pin.
Country Code: CN
Application Number: CN202322566977.7
