Double-layer rubber tube extrusion mold

Abstract

The invention relates to a double-layer rubber tube extrusion mold. The double-layer rubber tube extrusion mold comprises a mold tube, wherein one end of the axis direction of the mold tube is provided with a material inlet I, a tube core is coaxially and fixedly arranged inside the mold tube, an inner mold sleeve is coaxially fixed outside the tube core and is positioned inside the mold tube, aninner ring gap is formed between the inner mold sleeve and the tube core, an outer mold sleeve is coaxially fixed outside the inner mold sleeve and is positioned in the mold tube, an outer ring gap isformed between the outer mold sleeve and the inner mold sleeve, a feeding opening II is formed in the side wall of the mold tube, a feeding through groove used for communicating the feeding opening II and a feeding opening I is formed in the outer mold sleeve, and one end of the tube core extends to penetrate through the outer mold sleeve. According to the double-layer rubber tube extrusion mold,the glue solution is input into the mold tube from the feeding opening I and the feeding opening II, the glue solution sequentially forms an inner tube and an outer tube in the mold tube, and the effect of the production efficiency of the double-layer rubber tube is improved.

Description

technical field [0001] The invention relates to the technical field of rubber hose production, in particular to a double-layer rubber hose extrusion die. Background technique [0002] Molds are various molds and tools used in industrial production for injection molding, blow molding, extrusion, die-casting or forging forming, smelting, stamping, stretching and other methods to obtain the required products. In short, a mold is a tool used to shape an article. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the article through the change of the physical state of the formed material. [0003] The existing manufacturing methods of double-layer rubber hoses all use two large extruders and two sets of moulds. First, one extruder and one set of molds are used to make the inner rubber hose, and then another extruder and another set of molds are used to make the inner rubber hose. The outs...

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Problems solved by technology

[0003] The existing manufacturing methods of double-layer rubber hoses all use two large extruders and two sets of moulds. First, one extruder and one set of molds are used to make the inner rubber hose, and then another extruder and another set of molds are used to make the inner rubber hose. The outside of the inner rubber tube is wrapped with a layer of outer rubber tube, so the molding speed is slow and the production efficiency is low

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