Multilayer online laminating type stone-plastic plate production system

Abstract

The invention discloses a multilayer online laminating type stone-plastic plate production system. According to the system, a first extrusion device extrudes a lower stone-plastic layer and conveys toa conveying belt, a reinforcing material is paved on the lower stone-plastic layer from a first unwinding drum, and rolling is performed by a first pair of rollers so as to laminate; a second extrusion device extrudes a middle stone-plastic layer to the lower stone-plastic layer, a reinforcing material is paved on the middle stone-plastic layer from a second unwinding drum, and rolling is performed by a second pair of rollers so as to laminate; a third extrusion device extrudes an upper stone-plastic layer to the middle stone-plastic layer, and rolling is performed sequentially by a third pair of rollers and a four pairs of rollers so as to laminate; the obtained material is conveyed to a fifth pair of rollers through a large roller and a small roller so as to roll; and the obtained material is fed into a cooling device, and is subjected to cooling molding. According to the invention, with the method and the apparatus for extruding stone-plastic materials and integrally molding the auxiliary material paving of each layer, the production process can be simplified, and the cost can be further reduced; and after each layer of the glass fiber cloth or stone-plastic layer is paved, various layers are integrally combined in time in a heating and rolling manner before the stone-plastic material is hardened, so that the combination between the layers of materials is tight.

Description

technical field [0001] The invention relates to a production system of multi-layer on-line laminated stone-plastic panels. Background technique [0002] As a new type of board, stone-plastic board has the following advantages: the raw material is environmentally friendly, and the formaldehyde emission is zero; the material is light and thin, and has super wear resistance, high elasticity and super impact resistance; Waterproof, noise-proof performance, construction and installation are also very convenient. Therefore, stone-plastic panels can be used as floors, wall panels, furniture panels, wall lines, etc., and its application range is becoming wider and wider. Moreover, the stone-plastic board can be recycled and reused, which has great advantages in cost reduction and environmental protection. [0003] There is a very serious problem with stone-plastic panels, that is, when they are subjected to relatively large changes in cold and heat, their expansion and shrinkage r...

AI Technical Summary

Problems solved by technology

However, the co-extrusion method will cause the following problems: 1. The extruded resin seems to be layered, but it is extruded from a mold and formed at one time. In fact, it is still a resin sheet, but the materials of the upper, middle and lower layers of the resin may have Different, in this case, the internal stress of the resin sheet is relatively large, especially when the materials of the upper, middle and lower layers are different, it will lead to an increase in the internal stress of the resin sheet, which will affect the mechanical properties and flatness of the resin sheet 2. Co-extrusion will waste the production capacity of the extruder. If the resin is divided into upper and lower layers in the method of CN107031136A, two extruders are required to carry out co-extrusion, but its comprehensive production capacity is only 120-125% of one extruder about

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