Special injection molding machine for composite insulator

Abstract

The invention relates to a special injection molding machine for a composite insulator, comprising a compound die assembly and an injection device, wherein the compound die assembly comprises a main compound die oil cylinder, a linear removing cushion block, a movable mould plate, a cold flow channel component and a fixed mould plate from top to bottom. A guiding post is fixedly connected between the main compound die oil cylinder and the fixed mould plate, and the movable mould plate is connected with the guiding post in a sliding mode; the injection device is mounted below the molding machine, and an injection nozzle of the injection device is communicated with an injection channel of the cold flow component from the lateral side of the cold flow channel component; a mould is arranged between the cold flow channel component and the movable mould plate; the height H between the lower mounting surface of the mould and the bottom surface of a machine base is 500-1500mm; and both sides of the cold flow channel component are provided with mould holding frames. In the invention, the main compound die oil cylinder is mounted above the molding machine, the injection device is mounted below the molding machine, and the height between the lower mounting surface of the mould and the bottom surface of the machine base is about 500-1500mm, so that an operator can operate the machine on the ground. The invention has simple and reasonable structure, small occupied space in height and convenient operation and maintenance, and can improve the qualified rate of products.

Description

technical field [0001] The invention relates to a special injection molding machine for composite insulators. Background technique [0002] Most of the traditional equipment for producing high-voltage composite insulators are angle-type rubber injection molding machines, and most of these models are lower cylinder-type two-step mold clamping structures. [0003] The disadvantages are: 1. The work surface is high, and a high work platform is required. For the production of large rubber products, the labor intensity is high; [0004] 2. The core tube or mandrel is installed on the movable mold during the production process, and it will be displaced during the mold opening and closing action or exhaust action, which will cause damage to the core tube or mandrel, which will affect the product qualification rate. For products that require two moldings, the impact is even greater. [0005] Chinese Patent Document No. CN101244619 disclosed a rubber injection molding machine on Au...

AI Technical Summary

Problems solved by technology

[0003] The disadvantages are: 1. The work surface is high, and a high work platform is required. For the production of large rubber products, the labor intensity is high;

[0004] 2. The core tube or mandrel is installed on the movable mold during the production process, and it will be displaced during the mold opening and closing action or exhaust action, which will cause damage to the core tube or mandrel, which will affect the product qualification rate. For products that require two moldings, the impact is greater

Since the injection device of this structure is located on the upper part of the clamping device, it is higher from the ground, and is suitable for factories with higher floors. At the same time, the injection nozzle injects the rubber into the mold from top to bottom, which has the above shortcomings and needs to be improved.

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