PPR (polypropylene random) three-way pipeline mould

Abstract

The invention discloses a PPR (polypropylene random) three-way pipeline mould, and belongs to the technical field of moulds. The PPR three-way pipeline mould comprises a panel, a middle layer and a bottom plate, wherein the middle layer is arranged between the panel and the bottom plate and comprises a fixed die plate, a movable die plate, a push rod fixing plate, a push plate and a push pipe core-print fixing plate; the panel and the fixed die plate are connected through a supporting block; two sets of fixed die cores, fixed die cavities, movable die cavities and push pipe cores, which are used in a cooperative manner, are arranged in the middle layer; the fixed die cores, the fixed die cavities and the movable die cavities are arranged in the fixed die plate and the movable die plate in a communicated manner; and the push pipe cores are arranged in the movable die plate, the push rod fixing plate, the push plate and the push pipe core-print fixing plate in a communicated manner. The mould has a compact and stable structure, and due to the design of a perfect cooling system, the design of a reset structure, and the design of a lateral typing and lateral core-pulling mechanism, and the high-quality demoulding of the pipeline mould is realized. The mould is high in finished-product accuracy, high in heat efficiency, environmentally friendly and good in practicality.

Description

technical field [0001] The invention belongs to the technical field of moulds, and in particular relates to a PPR tee pipe mould. Background technique [0002] PPR (polypropylene random), also known as random copolymerized polypropylene, has good toughness, high strength, excellent processability, good creep resistance at higher temperatures, and has the unique advantages of high transparency of random copolymerized polypropylene. It can be widely used in the production of pipes, sheets, daily necessities, packaging materials, parts of household appliances and various films. [0003] After half a century of development, the level of PPR molds has been greatly improved. Due to its excellent qualities such as corrosion resistance and low cost, it has been widely used; however, in terms of its molding process, multi-material plastic molding molds, efficient multi-color injection molds, Great progress has also been made in the innovation of the insert interchangeable structure ...

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Problems solved by technology

[0003] After half a century of development, the level of PPR molds has been greatly improved. Due to its excellent qualities such as corrosion resistance and low cost, it has been widely used; however, in its molding process, multi-material plastic molding molds, high-efficiency multi-color injection molds, Great progress has also been made in the innovation of the insert interchangeable structure and the core-pulling and demoulding mechanism, and the use of gas-assisted injection molding technology has become more mature, but in general, the traditional mold structure is unstable, and the precision of the finished product cannot be guaranteed

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