Extrusion die for solid foaming plate with co-extrusion reinforced material

Abstract

The invention provides an extrusion die for a solid foaming plate with a co-extrusion reinforced material. The die is formed by butting a plurality of die plates including a die feeding plate, a runner forming plate and a die discharging plate; the die is provided with a main flow channel, a reinforcing material channel and a co-extrusion flow channel, and the main flow channel, the reinforcing material channel and the co-extrusion flow channel are mutually independent in the die; the main flow channel penetrates in the axis direction of the die; the reinforcing material channel comprises a first channel and a second channel which are distributed on the two sides of the main flow channel, and two discharging ports located on the two sides of a discharging port of the main flow channel are formed in the die discharging plate; and the co-extrusion flow channel forms a surface layer discharging port on the die discharging plate, the surface layer discharging port is of a rectangular ring structure and is arranged around the discharging port of the main flow channel in a sleeving manner, and two discharge ports of the reinforcing material channel are arranged between the main flow channel discharging port and the surface layer discharging port. According to the extrusion die, the die with three independent flow channels or channels is used for production, so that the failure rate in production is reduced.

Description

technical field [0001] The invention belongs to the field of floor manufacturing, and in particular relates to a solid foam board extrusion die with co-extruded reinforcing materials. Background technique [0002] Foam flooring has the advantages of light texture and low cost in practical applications, but due to its internal foam structure, the physical strength of the floor will be reduced, so people add a layer of reinforcing materials to the foam floor, such as glass fiber cloth to increase its strength. The same structure, the same size of the plate, the plate after co-extrusion reinforced material, the bending failure load increased by about 100%, the bending strength increased by about 60%, the flexural modulus of elasticity increased by about 50%, and all aspects of performance can be significantly improved. It can be used very well in some special places. The addition of co-extruded reinforcing materials has new requirements for the production process. [0003] C...

AI Technical Summary

Problems solved by technology

Although this mold structure solves the technical problem of adding reinforcing materials to the floor, it also has some disadvantages. For example, in order to realize the material inlet and outlet in the main channel, it is necessary to exert pressure on the core layer material, while the glass fiber channel and the skin layer channel are connected to the main channel. In the same way, once the external pressure of the glass fiber channel and the cortex channel is lower than the internal pressure of the main channel, the core material will flow back into the cortex channel and the glass fiber channel, causing the channel to be blocked, resulting in production stagnation, and the cortex channel and glass fiber The junction of the channel and the core layer channel has a small diameter, once it is blocked, it is difficult to maintain

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