Auxiliary mould clamping device of blowing mould

Abstract

The invention discloses an auxiliary mould clamping device of a blowing mould. The auxiliary mould clamping device comprises a piston cylinder mechanism, a gasket and a fixing ring. The piston cylinder mechanism comprises a cylinder body, a piston and a piston rod, the piston is located in the middle of the piston rod and placed in a piston cavity of the middle part of the cylinder body, and the piston divides the piston cavity into a front cavity body and a rear cavity body. A first oil inlet and a second oil inlet are formed in the front part and the rear part of the cylinder body. The movable end of the piston rod is placed in a cavity of the interior of the fixing ring and is coaxially arranged with the fixing ring, and the movable end of the piston rod is fixedly connected to the gasket. A groove hole, close to the gasket, is formed in the fixing ring, the top end of the fixing ring is connected with one of a mould back plate of the blowing mould, and the tail end of the cylinderbody is connected with the other mould back plate. According to the auxiliary mould clamping device of the blowing mould, the back plate is effectively locked and fixed, the influence of auxiliary mould blowing and cooling on production shaping is avoided, the shaping quality of products is improved, and the practicability is high.

Description

technical field [0001] The invention relates to a secondary clamping device for a blow molding mold, and relates to the technical field of blow molding machinery. Background technique [0002] Blow molding, also known as hollow blow molding, is a rapidly developing plastic processing method. The tubular plastic parison obtained by extrusion or injection molding of thermoplastic resin is placed in the split mold while it is hot (or heated to a softened state), and compressed air is injected into the parison immediately after the mold is closed to blow the plastic parison. It swells and clings to the inner wall of the mold, and after cooling and demoulding, various hollow products can be obtained. The blow molding mold is a mold used for product molding, which is one of the important parts in the blow molding machine. Because the blow molding mold is generally a main mold plus a secondary mold, the main mold is formed, and the secondary mold is blown to cool and remove waste....

AI Technical Summary

Problems solved by technology

The blow molding mold is a mold used for product molding, which is one of the important parts in the blow molding machine. Because the blow molding mold is generally a main mold plus a secondary mold, the main mold is formed, and the secondary mold is cooled by blowing air to remove waste. The main mold and the auxiliary mold are a whole plate, so the back plate is longer, and when the auxiliary mold is cooled and blown, the blowing pressure will open the auxiliary mold. When the back plate is stressed, due to the longer cantilever , it will affect the molding blowing at the main mold, resulting in unsatisfactory product molding, thus affecting product quality

Images