CN206953396U

CN206953396U - A kind of extrusion foaming mould of multilayer core

Info

Publication number: CN206953396U
Application number: CN201720577395.0U
Authority: CN
Inventors: 叶伟; 叶文祥; 黄红英; 叶文畅
Original assignee: Huangshi Weisheng Mould Co Ltd
Current assignee: Huangshi Weisheng Mould Co Ltd
Priority date: 2017-05-23
Filing date: 2017-05-23
Publication date: 2018-02-02
Anticipated expiration: 2027-05-23

Abstract

The utility model discloses a kind of extrusion foaming mould of multilayer core, including die body and it is sequentially connected to the rebound of described die body one end, supporting plate, cylinder manifold, mouth template and water jacket plate, the inside of the extrusion foaming mould is disposed with first layer core from the top down, second layer core and third layer core, the first layer core, second layer core and the third layer core are sequentially passed through in the supporting plate, cylinder manifold and the mouth template, the second layer core is linearly, the axle centered on the second layer core is symmetrical with the third layer core for the first layer core, inclined-plane is provided with the middle part of the first layer core and the third layer core, so that the combination of the first layer core and the third layer core is in Y-shaped.The utility model effectively increases the compaction rate of product and the finish of product surface, further increases the quality of product.

Description

A kind of extrusion foaming mould of multilayer core

【Technical field】

Technical field of mold is the utility model is related to, more particularly to a kind of extrusion foaming mould of multilayer core.

【Background technology】

Extrusion foaming mould is used for the production of the products such as film, tubing, sheet material, section bar and packaging material, mould Structure directly affects the quality of product, in mould design and manufacture, generally require mould inside establish enough pressure with Prevent plastic melt from being foamed in die cavity, cause product to produce uneven foam structure and coarse surface, or even can not be just Often shaping.Existing mould is mostly individual layer core, there is provided the pressure of individual layer, for compactness is higher, extrusion of lighter in weight is produced Product, it can not meet the requirement of production, insufficient pressure, and caused foaming space is difficult to, and causes product hole occur, seriously Influence the quality of product.Existing solution method has：(1) increase the appearance and size of mould, increase the wall thickness of mould；(2) change The content of foaming agent in raw material.Excessive manufacturing cost can be increased using above-mentioned first method, the heavier mass of mould, removed Fortune and in-convenience in use, and the quality of product cannot be guaranteed；Being produced into for manufacturer is caused using above-mentioned second method This raising, long-term use can cause the great wasting of resources.

【Utility model content】

In view of this, it is overcome the deficiencies in the prior art, the utility model provides a kind of extrusion foaming mould of multilayer core Tool, by setting multilayer core, pressure distribution of the multilayer from feedstock direction is realized, so as to provide enough foaming spaces, is had Effect ensure that the compaction rate of product and the finish of product surface, improve the quality of product.

To achieve the above object, the technical solution of the utility model is as follows：

A kind of extrusion foaming mould of multilayer core, including die body and the transition for being sequentially connected to described die body one end Plate, supporting plate, cylinder manifold, mouth template and water jacket plate, the inside of the extrusion foaming mould are disposed with first from the top down Stratotype core, second layer core and third layer core, the first layer core, second layer core and the third layer core are equal Sequentially pass through in the supporting plate, cylinder manifold and the mouth template, the second layer core is linearly, first stratotype The axle centered on the second layer core is symmetrical with the third layer core for core, the first layer core and the third layer type Inclined-plane is provided with the middle part of core so that the combination of the first layer core and the third layer core is in Y-shaped.

Preferably, one end end face that the first layer core and third layer core are located at the mouth template is plane, it is described First layer core and third layer core are located at the tapered shape in one end of the supporting plate, and the cone-shaped facilitates access for point of material Stream.

Further, shape between the first layer core, second layer core and the third layer core and the supporting plate Into pressure area everywhere, the distribution of multilayer pressure is realized, effectively increases the compaction rate of product.

Further, the first layer core and third layer core include three plugs, and the second layer core is one Rectangle plug.

The utility model by the multi-level setting of the first layer core, second layer core and third layer core, with The supporting plate forms pressure area everywhere, the four layers of pressure for coming from feedstock direction distribution is realized, so as to provide enough hairs Space is steeped, effectively increases the quality of product.

The beneficial effects of the utility model are on the premise of mold weight and production cost is not increased, to improve product Compaction rate and product surface finish, further increase the quality of product.

【Brief description of the drawings】

, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work Under, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is structural representation of the present utility model；

Fig. 2 is the partial structural diagram of Fig. 1 medium-height trestle plates；

Fig. 3 is the partial structural diagram of cylinder manifold in Fig. 1.

In figure, 1, die body, 2, rebound, 3, supporting plate, 4, cylinder manifold, 5, mouth template, 6, water jacket plate, the 7, first stratotype Core, 8, second layer core, 9, third layer core, 10, pressure area.

【Embodiment】

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.

Reference picture 1, a kind of extrusion foaming mould of multilayer core, including die body 1 and it is sequentially connected to the die body 1 one Rebound 2, supporting plate 3, cylinder manifold 4, mouth template 5 and the water jacket plate 6 at end, the inside of the extrusion foaming mould from the top down according to It is secondary to be provided with first layer core 7, second layer core 8 and third layer core 9, the first layer core 7, second layer core 8 with And the third layer core 9 is sequentially passed through in the supporting plate 3, cylinder manifold 4 and the mouth template 5, second stratotype Core 8 is linearly, and the axle centered on the second layer core 8 is symmetrical with the third layer core 9 for the first layer core 7, The middle part of the first layer core 7 and the third layer core 9 is provided with inclined-plane so that the first layer core 7 and described The combination of third layer core 9 is in Y-shaped, facilitates access for the lifting of material pressure, improves the compaction rate of product.

One end end face that the first layer core 7 and third layer core 9 are located at the mouth template 5 is plane, positioned at described The tapered shape in one end of supporting plate 3, the cone-shaped facilitate access for the shunting of material.

Formd between the first layer core 7, second layer core 8 and the third layer core 9 and the supporting plate 3 Pressure area 10 everywhere, the distribution of multilayer pressure is realized, effectively increase the compaction rate of product.

Reference picture 2 and Fig. 3, the first layer core 7 and third layer type 9 include three plugs, the second layer core 8 For a rectangle plug.

Such as Fig. 1, in use, material enters at die body 1, rebound 2, supporting plate 3 are flowed through, from first layer core 7, second Stratotype core 8 and third layer core 9 are shunted, extruded, and the pressure of material improves, and compaction rate improves, so as to provide enough hairs Steep space.

The utility model effectively increases the compaction rate of product on the premise of mold weight and production cost is not increased With the finish of product surface, the quality of product is further increased.

Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in Protection domain within.

Claims

1. a kind of extrusion foaming mould of multilayer core, including die body and be sequentially connected to described die body one end rebound, Supporting plate, cylinder manifold, mouth template and water jacket plate, it is characterised in that the inside of the extrusion foaming mould is set successively from the top down It is equipped with first layer core, second layer core and third layer core, the first layer core, second layer core and the described 3rd Stratotype core is sequentially passed through in the supporting plate, cylinder manifold and the mouth template, and the second layer core is linearly, described The axle centered on the second layer core is symmetrical with the third layer core for first layer core, the first layer core and described Inclined-plane is provided with the middle part of third layer core, the combination of the first layer core and the third layer core is in Y-shaped.

A kind of 2. extrusion foaming mould of multilayer core according to claim 1, it is characterised in that the first layer core One end end face for being located at the mouth template with third layer core is plane, and the first layer core and third layer core are positioned at described The tapered shape in one end of supporting plate.

A kind of 3. extrusion foaming mould of multilayer core according to claim 1, it is characterised in that first stratotype Pressure area everywhere is formd between core, second layer core and the third layer core and the supporting plate.

A kind of 4. extrusion foaming mould of multilayer core according to claim 1, it is characterised in that the first layer core Three plugs are included with third layer core, the second layer core is a rectangle plug.