Imitated-marble co-extrusion foaming line extruding die

Abstract

The invention discloses an imitated-marble co-extrusion foaming line extruding die, which comprises a die body, a transition plate, a support plate, bush dies and a cold die connected sequentially, and is characterized in that the bush dies comprise a first bush die and a second bush die; the first bush die is located between the second bush die and the cold die; and a co-extrusion surface of the second bush die is adjusted to be 0.25 to 0.35mm lower than a lowest position. The co-extrusion surface of the second bush die is in a convex-concave slope shape, and is optimally adjusted to be 0.30mm lower than the lowest position; when a product comes out from the cold die, the lowest position of the co-extrusion is faster than other positions; and since the position is lowered, the product coming out from the cold die is uniform in clearance to achieve the consistency, and higher in strength. According to the imitated-marble co-extrusion foaming line extruding die provided by the invention, the problem that co-extrusion clearances of the product produced by a former line co-extrusion die are non-uniform is effectively solved, the product strength is improved, and the product quality is ensured.

Description

【Technical field】 [0001] The invention relates to the technical field of co-extrusion dies, in particular to a marble-like co-extrusion foaming line extrusion die. 【Background technique】 [0002] In the past, the co-extrusion surface gap of the die of the line co-extrusion die was the same, which was 0.2mm smaller than the gap of the non-co-extrusion surface. However, when the product came out of the cold mold, the speed at the lowest point was faster than other positions. It should be faster, resulting in uneven gaps and insufficient strength of co-extruded products, which will easily affect product quality. 【Content of invention】 [0003] In view of this, in order to overcome the deficiencies of the prior art, the present invention provides a marble-like co-extrusion foaming line extrusion die, which lowers the gap between the co-extrusion surfaces at the lowest part of the die, effectively solving the gap after the product exits the cold die. The problem of unevenness ...

AI Technical Summary

Problems solved by technology

[0003] In view of this, in order to overcome the deficiencies of the prior art, the present invention provides a marble-like co-extrusion foaming line extrusion die, which lowers the gap between the co-extrusion surfaces at the lowest part of the die, effectively solving the gap after the product exits the cold die. The problem of unevenness ensures product quality

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