PE wood-plastic co-extrusion flow line mold

Abstract

The invention discloses a PE wood-plastic co-extrusion flow line mold which comprises a mold body used for extrusion molding. Hollow cavities are formed in a machine neck, a compression plate, a support plate, a premolding plate, a molding plate and a co-extrusion plate of the mold body correspondingly. The hollow cavities are combined into a mold cavity with the cross section tending to be in a long strip shape. Co-extrusion flow channels with multiple bent channels are arranged in the co-extrusion plate. The co-extrusion flow channels communicate with the long-strip-shaped mold cavity through cladding openings. The cladding openings are distributed around the cavity wall of the long-strip-shaped mold cavity. Due to the fact that the multiple bent channels re arranged in the co-extrusion flow channels, color masterbatch entering the long-strip-shaped mold cavity through the co-extrusion flow channels is turned and dispersed in the multiple bent channels arranged in the input flow channels and the cladding flow channels, and finally an even flow line effect is formed on the surface of a PE wood-plastic composite inner core. Meanwhile, the cladding openings are arranged to be distributed around the cavity wall of the long-strip-shaped mold cavity, and therefore the surface of the PE wood-plastic composite inner core is evenly clad with a PE material outer film.

Description

technical field [0001] The invention relates to an extrusion die, in particular to a PE wood-plastic co-extrusion flow pattern die. Background technique [0002] PE wood-plastic material is a new type of composite material that has been booming at home and abroad in recent years. It gradually replaces the original metal products with its excellent physical and chemical properties. It is widely used in the market. PE wood-plastic material has the same compression resistance as hardwood. , anti-bending and other physical and mechanical properties, and its durability is significantly better than ordinary wood materials. Compared with wood, its products are resistant to strong acid and alkali, water and corrosion, and do not breed bacteria, are not easy to be eaten by moths, do not grow fungi, and have a long service life, which can reach more than 50 years. In order to increase the aesthetics of PE wood-plastic, manufacturers will co-extrude decorative patterns on the surface ...

AI Technical Summary

Problems solved by technology

In order to increase the aesthetics of PE wood-plastic, manufacturers will co-extrude decorative patterns on the surface of PE wood-plastic, so that it is necessary to form a PE material outer film on the surface of PE wood-plastic, but the existing PE wood-plastic co-extrusion flow pattern The flow pattern effect of the PE material outer film on the surface of the workpiece produced by the mold is uneven, resulting in insufficient overall aesthetics of the embossed pattern

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