Extrusion mould used for producing plastic square tube

Abstract

The invention relates to the technical field of plastic production moulds, in particular to an extrusion mould used for producing a plastic square tube, which comprises a mould body, wherein the mouldbody comprises a mould body plate, a first transition plate, a second transition plate, a third transition plate, a support plate, a first converge plate, a second converge plate, a first mouth mouldplate, a second mouth mould plate, and a cooling water jacket; the cooling water jacket comprises 16 cooling water plates with the same size; the mould body plate, the first transition plate, the second transition plate and the third transition plate are internally provided with crowding-in runners with inner holes gradually reduced from left to right. According to the extrusion mould used for producing the plastic square tube, the cooling water jacket comprising the 16 cooling water plates with the same size is fixed on a left side wall of the second mouth mould plate by bolts, the bolts with hollow structures are utilized to fix and supply liquid to cooling water holes in the cooling water plates, the whole mould is adjustable in local temperature, and the production efficiency and theproduction quality are greatly improved.

Description

technical field [0001] The invention relates to the technical field of plastic production molds, in particular to an extrusion mold used for the production of plastic square columns. Background technique [0002] At present, there are many specifications of molds on the market, and the extrusion mold is one of the main molds used to complete the extrusion molding process. It mainly uses pressure to squeeze the plastic that has been processed by hot melting into the mandrel and the die through the distributor. Between molding. However, in the production process, the design of the traditional extrusion die on the die is unreasonable, and the temperature inside the extrusion die cannot be locally controlled, resulting in low extrusion molding efficiency, which seriously affects the overall quality of the product and production efficiency. Contents of the invention [0003] The technical problem to be solved by the present invention is: in order to solve the problems existing...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is: in order to solve the problems existing in the above-mentioned background technology, provide an improved extrusion die for the production of plastic square columns, solve the unreasonable design of the traditional extrusion die on the die, The temperature inside the extrusion die cannot be controlled locally, resulting in low extrusion molding efficiency, which seriously affects the overall quality of the product and production efficiency.

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