A pvc pipe extrusion die for improving the flatness of the inner wall of the product

Abstract

The invention discloses a PVC pipeline extruding die for improving the flatness of the inner wall of a product. The PVC pipeline extruding die comprises a front die body, a bush die pressing plate, bush die, a support, a core rod, a dividing cone, a rear die body, a first dividing die body, a second dividing die body and a converging core. The bush die pressing plate is mounted in an inner cavity of the front die body. A sphere with the middle annularly cut is arranged on the right portion of the bush die. The left end of the bush die penetrates the bush die pressing plate and the front die body. The support is connected with the right end face of the front die body. The right side of the sphere is attached to the arc-shaped face on the left side of the support. The core rod is mounted in a cavity of the core rod and fixed through matching connection of the dividing cone and the rear die body. The left end face of the rear die body and the right end face of the support are connected. The right side of the rear die body is connected with the first dividing die body. The first dividing die body and the second dividing die body are connected, and are sealed and fixed through the converging core. The PVC pipeline extruding die is reasonable in structure, the flowing stability of materials in the die is improved, and the quality of a PVC pipe is improved.

Description

【Technical field】 [0001] The invention relates to the technical field of PVC pipe extrusion dies, in particular to a PVC pipe extrusion die for improving the flatness of the inner wall of a product. 【Background technique】 [0002] In recent years, with the development of the economy, people have higher and higher requirements for building functions and sanitary conditions, especially the reasonable selection of pipelines plays a vital role in ensuring the use of buildings. The plastic pipes often used in building water supply and drainage pipes are polyvinyl chloride pipes, also known as PVC pipes, which have excellent surface hardness and tensile strength, high pipe safety factor, good anti-aging performance, long service life, and heat resistance. , strong corrosion resistance, no pollution and other advantages, it is a kind of synthetic material that is loved, popular and widely used in the world today, and has been more and more widely used in various industries. [000...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and provide a PVC pipe extrusion die that improves the flatness of the inner wall of the product, which aims to solve the problem of low flatness and low impact resistance of the inner wall of the PVC pipe in the prior art. The technical problem of poor fluidity of the material in the extrusion die

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