Hollow blow molding equipment

Abstract

The invention relates to the technical field of blow molding equipment, and discloses hollow blow molding equipment. The hollow blow molding equipment comprises a base, wherein supporting plates are symmetrically and fixedly connected to two sides of the upper end of the base; transverse plates are fixedly connected to opposite side walls of the upper ends of the two supporting plates; opposite ends of the two transverse plates are fixedly connected with a hollow blow molding machine main body; an output end of the hollow blow molding machine main body extends downwards; a chute is formed in the base; two sliding blocks are symmetrically and slidably connected in the chute; the walls of the chute are jointly and rotatably connected with a rotating rod through two bearings; the rotating rodis fixedly sleeved with two symmetrical gears; one sides, close to the gears, of the sliding blocks, are fixedly connected two symmetrical racks; and the racks are engaged with the corresponding gears. According to the hollow blow molding equipment, two molds can move together in the mold opening and closing process, the moving distance is relatively short, and each time of the mold opening and closing is short, therefore, the production efficiency is not affected, and the molds can be conveniently replaced.

Description

technical field [0001] The invention relates to the technical field of blow molding equipment, in particular to a hollow blow molding equipment. Background technique [0002] Hollow blow molding is divided into injection blow molding, extrusion blow molding and stretch blow molding. Injection blow molding is to use injection molding to make plastic into a bottomed parison, and then move the parison into the blow mold for blow molding. take shape. In the extrusion blow molding process, the tube blank is directly extruded from the extruder and hangs in the pre-separated cavity installed directly under the machine head; when the hanging parison reaches the specified length, the mold is immediately closed and close The incision of the mold cuts off the tube blank, and the compressed air is introduced from the small hole on the parting surface of the mold to make the parison inflate and close to the mold wall to form; keep the pressure, and after the product is cooled and shaped...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a hollow blow molding equipment, which has the advantages of short mold opening and closing time, convenient and quick mold replacement, etc. Only the moving template moves during the molding process, and its moving distance is relatively long. The time for opening and closing the mold is relatively long each time, which affects the production efficiency and is very inconvenient.

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