CN201677486U

CN201677486U - High molecular special-shaped material foaming extrusion dies

Info

Publication number: CN201677486U
Application number: CN2010201461144U
Authority: CN
Inventors: 柯友军; 何浩
Original assignee: Huangshi Hongda Plastic Mould Co Ltd
Current assignee: Huangshi Hongda Plastic Mould Co Ltd
Priority date: 2010-03-30
Filing date: 2010-03-30
Publication date: 2010-12-22
Anticipated expiration: 2020-03-30

Abstract

The utility model relates to a high molecular special-shaped material foaming extrusion die, which is composed of a merging plate, a finish mold, a support plate, a transition plate and a die body connected in sequence, and cores are provided in the support plate and finish mold inner bore, which is characterized in that screen holes are provided on the cores. The utility model resolves the problem of the prior product produced by no-hole cores has low bleb rate, large denseness, large product weight, and it can not meet user requirement, which is principally used to produce special-shaped building material products.

Description

Macromolecular profiled foam extrusion die

(1) technical field: the utility model relates to wood and moulds processing mold, especially a kind of macromolecular profiled foam extrusion die.

(2) background technology: the domestic production inner chamber is solid macromolecule profile shapes goods at present, general producer just considers the plasticizing of product and the appearance and size of product, two kinds of moulds of main employing are produced, a kind of is no core mold, the formed product that adopts this mould to produce is bad, and inner chamber foaming density is big, and it is inhomogeneous to foam, product weight is big, and outer wall skinning hardness can not reach requirement; Another kind is that core mold is arranged, and mold cores is a solid construction, though product cavity foaming density makes moderate progress, but still does not reach customer requirements, and because middle core is abundant, causes mid portion to be stained with and forms layering.

(3) summary of the invention: the purpose of this utility model is exactly that the product cavity that will solve existing macromolecule profile shapes extrusion die production is sent out remittance density product greatly, it is inhomogeneous to foam, product weight is big, mid portion forms layering easily, outer wall skinning hardness can not reach problems such as requirement, and a kind of macromolecular profiled foam extrusion die that can produce the high-quality profile shapes is provided.

Concrete scheme of the present utility model is: improve at existing banding pattern core macromolecular profiled foam extrusion die, it is to be connected in sequence by interflow plate, mouthful mould, supporting plate, rebound, die body, and in supporting plate and mouthful mould endoporus, core is housed, it is characterized in that: offer sieve aperture on the described core.

Described in the utility model on the core sieve aperture total sectional area account for the long-pending 10-90% of mouthful mould inner hole section.

Sieve diameter described in the utility model on the core is 3-4mm, and the core outer wall is 2-3mm with mouthful runner gap of mould inner hole wall.

The utility model is simple in structure, designs ingeniously, and mold cores is taked sieve aperture design, and product cavity is foamed fully.Adopt the product design size of this mould production fully to finalize the design, inner chamber fully foams, and density is little, middle no layering, product perfect, quality height.

(4) description of drawings:

Fig. 1 is a front view of the present utility model;

Fig. 2 is a left view of the present utility model;

Fig. 3 is a core three-dimensional structure diagram of the present utility model.

Among the figure: 1-collaborates plate, 2-mouth mould, 3-supporting plate, 4-core, 5-rebound, 6-die body, 7-supporting rib, 8-sieve aperture.

(5) specific embodiment:

Referring to Fig. 1,2,3, the utility model is to be connected in sequence by interflow plate 1, mouthful mould 2, supporting plate 3, rebound 5, die body 6, and in supporting plate 3 and mouthful mould 2 endoporus, core 4 (being provided with many supporting ribs 7 on the core 4 is connected with support 3) is housed, particularly: offer sieve aperture 8 on the described core 4.

Sieve aperture 8 total sectional areas on the core described in the present embodiment 4 account for the long-pending 10-90% of mouthful mould inner hole section (according to the wall thickness of product and highly definite, concrete optional 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%).

Sieve aperture 8 diameters on the described core 4 are 3-4mm, concrete optional 3mm, 3.5mm, 4mm etc.Core 4 outer walls are 2-3mm with mouthful runner gap of mould 2 inner hole walls, concrete optional 2mm, 2.5mm, 3mm etc.

Claims

1. macromolecular profiled foam extrusion die is to be connected in sequence by interflow plate, mouthful mould, supporting plate, rebound, die body, and in supporting plate and mouthful mould endoporus core is housed, and it is characterized in that: offer sieve aperture on the described core.

2. macromolecular profiled foam extrusion die according to claim 1 is characterized in that: the sieve aperture total sectional area accounts for the long-pending 10-90% of mouthful mould inner hole section on the described core.

3. macromolecular profiled foam extrusion die according to claim 1 is characterized in that: the sieve diameter on the described core is 3-4mm, and the core outer wall is 2-3mm with mouthful runner gap of mould inner hole wall.