CN207207069U - A kind of three-layer co-extruded type diaphragm inflation film manufacturing machine is die head especially used - Google Patents

Abstract

The utility model discloses a kind of three-layer co-extruded type diaphragm inflation film manufacturing machine is die head especially used; including middle internal layer helical flow path and outer layer superposition runner; middle internal layer helical flow path heating collar is additionally provided with the middle internal layer helical flow path; the middle internal layer helical flow path includes middle level runner and internal layer runner; the internal layer runner is embedded in middle level runner, and outer layer superposition runner heating collar is provided with the outer layer superposition runner.The three-layer co-extruded type diaphragm inflation film manufacturing machine of the utility model is die head especially used; both independent heating had been met; flow channel length is shortened again; ensure that outer layer cohesive material shortens the holdup time in heating system; middle internal layer runner is designed to spirally; flow channel length meets needs; with identical processing temperature; the selection of cladding material reaches variation; both processing temperature can have been selected higher than middle inner layer material, can also select it is relatively low, while shortening flow channel length; the long-time heating to cladding material is avoided, causes performance change.

Description

A kind of three-layer co-extruded type diaphragm inflation film manufacturing machine is die head especially used

Technical field

Inflation film manufacturing machine technical field is the utility model is related to, especially a kind of three-layer co-extruded type diaphragm inflation film manufacturing machine die for special purpose Head.

Background technology

Existing three-layer co-extruded type protection membrane production equipment-inflation film manufacturing machine, is gradually to change in base material membrane production equipment by optimization Enter differentiation to come.Wherein mould is one of critical component, good and bad shaping, performance, quality and the guarantor to film of mold performance Cuticula important parameter stabilizes and plays key effect.

The mould of existing equipment, runner are designed with two kinds, and one kind is that three laminar flow roads are all designed as spirally, Yi Zhongshi Three laminar flow roads are all designed to superposing type, and the three screw type shortcomings in laminar flow road are that three layers of runner shares a heat-generating system, stream Materials processing temperature is limited in identical numerical value in road, can not realize each material system in excellent machining state while also lead The limitation for having caused material to select, is unfavorable for playing the performance diversification of each material and is difficult to realize the advantages of fully extracting material Highest cost performance；Superposition mould overcomes this shortcoming, but it is by volumetric constraint, the length phase of runner to be superimposed mould shortcoming To reducing, it is unfavorable for a part of material flowing deformation processing again.

The content of the invention

The purpose of this utility model is to provide a kind of three-layer co-extruded type diaphragm inflation film manufacturing machine die head especially used, has outer layer material The advantages of selection variation of material and shortening runner, to solve the problems, such as to mention in above-mentioned background.

To achieve the above object, the utility model provides following technical scheme：

A kind of three-layer co-extruded type diaphragm inflation film manufacturing machine is die head especially used, including middle internal layer helical flow path and outer layer superposition runner, Middle level and internal layer runner charging aperture are provided with the middle internal layer helical flow path, it is interior in being additionally provided with the middle internal layer helical flow path Helical layer runner heating collar, the side of the middle internal layer helical flow path are provided with interior cold disengaging air compartment, the middle internal layer helical flow path Including middle level runner and internal layer runner, the internal layer runner is embedded in middle level runner, and outer layer is provided with the outer layer superposition runner Runner heating collar is superimposed, outer layer charging aperture is provided with the outer layer superposition runner, the inner side of the outer layer superposition runner is set There is core rod, cold inlet and outlet in mould is provided with the core rod, die lip gap regulation ring, institute are provided with the outside of the core rod State outer layer superposition runner and be provided with outer layer runner exit, the side of the outer layer runner exit is provided with middle level runner exit, institute The side for stating middle level runner exit is provided with internal layer runner exit, and the outer layer superposition runner includes outer layer superposition runner lower half With outer layer superposition runner lower half, the outer layer superposition runner lower half is provided with actual runner inside outer layer.

Preferably, the middle level runner exit gap is designed as 2mm, and internal layer runner exit gap is designed as 1.5mm, middle level Runner exit is with internal layer runner exit at a distance of 50mm.

Preferably, the outer layer runner exit is provided with outer layer runner exit spacer ring, and outer layer runner exit gap is fixed Design is in 0.6mm.

Compared with prior art, the utility model beneficial effect：

The three-layer co-extruded type diaphragm inflation film manufacturing machine of the utility model is die head especially used, is stacked system by the runner design of outer layer, Both independent heating had been met, has shortened flow channel length again, has ensured that outer layer cohesive material shortened in the holdup time of heating system, will Middle internal layer runner is designed to that spirally flow channel length meets needs, has identical processing temperature, by superposition runner and spiral flow Road reasonably combines, and designs a set of new model mould, increases the diversification of cohesive material, and the selection of cladding material reaches Variation, can both select processing temperature higher than middle inner layer material, can also select it is relatively low, while shortening runner Length, the long-time heating to cladding material is avoided, causes performance change.

Brief description of the drawings

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

Fig. 2 is that outer layer of the present utility model is superimposed runner schematic diagram；

Fig. 3 is profile of the present utility model.

In figure：Internal layer helical flow path, 2 outer layer charging apertures, 3 outer layers superposition runner, 4 die lip gap regulation rings, 5 moulds in 1 Under interior cold inlet and outlet, 6 core rods, 7 outer layers superposition runner heating collar, 8 middle levels and internal layer runner charging aperture, 9 outer layers superposition runner Half portion, the 10 outer layers superposition runner first half, actual runner inside 11 outer layers, internal layer helical flow path in cold disengaging air compartment, 13 in 12 In heating collar, 14 outer layer runner exit spacer rings, 15 outer layer runner exits, 16 middle level runner exits, 17 internal layer runner exits, 18 Laminar flow road, 19 internal layer runners.

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.

Fig. 1-3 are referred to, the utility model provides a kind of technical scheme：A kind of three-layer co-extruded type diaphragm inflation film manufacturing machine is special Die head, including middle internal layer helical flow path 1 and outer layer superposition runner 3, because the material of the outer layer runner processing of co-extrusion diaphragm is viscous Property material, typically has POE, SEBS, elastomer and tackifying resin etc., different materials processing temperature changes greatly, it is desirable to mould Flow channel length is relatively shorter, is now stacked system by the runner design of outer layer, had both met independent heating, and shortened stream again Road length, ensure that outer layer viscous material shortened in the holdup time of heating system, while middle level and internal layer runner rapidoprint kind Model change is little, several model materials of close physical property is essentially fixed in, so middle internal layer runner is designed into spiral shell Rotating, flow channel length meets needs, has identical processing temperature, and superposition runner is reasonably incorporated into one with helical flow path Rise, design a set of new model mould, increase the diversification of cohesive material, middle level and internal layer are provided with middle internal layer helical flow path 1 Runner charging aperture 8, middle level since charging, follow 1 point 2 with internal layer, 2 point 4,4 point of 8 mode dispersion runner, middle level discharging opening Gap is designed as 2mm, and apart from charging aperture 580mm, internal layer discharging opening gap is designed as 1.5mm, apart from charging aperture 530mm, in, it is interior Layer discharging opening is additionally provided with middle internal layer helical flow path heating collar 13 on 50mm, middle internal layer helical flow path 1, and middle level shares with internal layer A set of heating collar, has identical heating-up temperature, and the side of middle internal layer helical flow path 1 is provided with interior cold disengaging air compartment 12, middle internal layer Helical flow path 1 includes middle level runner 18 and internal layer runner 19, middle level and internal layer are designed by helical flow path mode, two layers of charging aperture In mold bottom, identical height, in same plane, middle level selection presses Ф by the Screw Extrusion amounts of Ф 75 design flow diameter, internal layer 65 Screw Extrusion amounts design flow diameter, and internal layer runner 19 is embedded in middle level runner 18, and middle level runner 18 and internal layer runner 19 use Inserting type combines, and internal layer insertion middle level, internal layer discharging converges in middle level discharging opening with middle material, is set on outer layer superposition runner 3 There are outer layer superposition runner heating collar 7, outer layer superposition runner 3 separately installed outer layer superposition runner heating collar 7, independent heating, outer layer Outer layer charging aperture 2 is provided with superposition runner 3, the inner side of outer layer superposition runner 3 is provided with core rod 6, and outer layer superposition runner 3 is followed 1 point 2,2 point 4,4 point of 8 mode dispersion runner, outer layer runner exit 15 is higher by 70mm, middle level and internal layer than middle level runner exit 16 Layer runner exit 15 is merged compound material with cladding material outside, and the core rod 6 of mould is flowed to after compound, mould is provided with core rod 6 Interior cold inlet and outlet 5, the outside of core rod 6 are provided with die lip gap regulation ring 4, and outer layer superposition runner 3 goes out provided with outer layer runner Mouth 15, outer layer runner exit 15 are provided with outer layer runner exit spacer ring 14, and the gap of outer layer runner exit 15 is fixed design and existed 0.6mm, the side of outer layer runner exit 15 are provided with middle level runner exit 16, and the side of middle level runner exit 16 is provided with internal layer Runner exit 17, the gap of middle level runner exit 16 are designed as 2mm, and the gap of internal layer runner exit 17 is designed as 1.5mm, middle level runner Outlet 16 includes outer layer superposition runner lower half 9 and outer layer superposition with internal layer runner exit 17 at a distance of 50mm, outer layer superposition runner 3 Runner lower half 10, outer layer superposition runner lower half 9 are provided with actual runner 11 inside outer layer, and outer layer is set by superposition plane runner Meter, is placed on mould upper end, is superimposed runner lower half 9 by outer layer and outer layer is superimposed runner lower half 10 and formed, real inside outer layer Border runner 11 adds runner lower half 9 in outer stack, and the three-layer co-extruded type diaphragm inflation film manufacturing machine of the utility model is die head especially used, by outer layer Runner design be stacked system, both met independent heating, and shortened flow channel length again, and ensured that outer layer cohesive material shortens and exists The holdup time of heating system, middle internal layer runner is designed to that spirally flow channel length meets needs, there is identical processing temperature Degree, superposition runner is reasonably combined with helical flow path, a set of new model mould is designed, increases the polynary of cohesive material Change, the selection of cladding material reaches variation, can both select processing temperature higher than middle inner layer material, and can also select relatively low , while shortening flow channel length, the long-time heating to cladding material is avoided, causes performance change.

In summary：The three-layer co-extruded type diaphragm inflation film manufacturing machine of the utility model is die head especially used, is by the runner design of outer layer Stacked system, independent heating was both met, and shortened flow channel length again, and ensured that outer layer cohesive material shortened in the stagnant of heating system The time is stayed, middle internal layer runner is designed to that spirally flow channel length meets needs, there is identical processing temperature, superposition is flowed Road reasonably combines with helical flow path, designs a set of new model mould, increases the diversification of cohesive material, cladding material Selection reach variation, can both select processing temperature higher than middle inner layer material, can also select it is relatively low, while Flow channel length is shortened, the long-time heating to cladding material is avoided, causes performance change.

It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not This is confined to, any one skilled in the art is in the technical scope that the utility model discloses, according to this practicality New technical scheme and its improvement design is subject to equivalent substitution or change, should all cover in the scope of protection of the utility model It is interior.

Claims (3)

1. a kind of three-layer co-extruded type diaphragm inflation film manufacturing machine is die head especially used, including middle internal layer helical flow path（1）Runner is superimposed with outer layer （3）, it is characterised in that：The middle internal layer helical flow path（1）On be provided with middle level and internal layer runner charging aperture（8）, it is interior in described Helical layer runner（1）On be additionally provided with middle internal layer helical flow path heating collar（13）, the middle internal layer helical flow path（1）Side be provided with Interior cold disengaging air compartment（12）, the middle internal layer helical flow path（1）Including middle level runner（18）With internal layer runner（19）, the internal layer Runner（19）Embedded middle level runner（18）, the outer layer superposition runner（3）On be provided with outer layer superposition runner heating collar（7）, institute State outer layer superposition runner（3）On be provided with outer layer charging aperture（2）, the outer layer superposition runner（3）Inner side be provided with core rod （6）, the core rod（6）On be provided with cold inlet and outlet in mould（5）, the core rod（6）Outside be provided with die lip gap tune Save ring（4）, the outer layer superposition runner（3）It is provided with outer layer runner exit（15）, the outer layer runner exit（15）Side It is provided with middle level runner exit（16）, the middle level runner exit（16）Side be provided with internal layer runner exit（17）, it is described Outer layer is superimposed runner（3）Including outer layer superposition runner lower half（9）With outer layer superposition runner lower half（10）, the outer layer superposition Runner lower half（9）It is provided with actual runner inside outer layer（11）.

2. a kind of three-layer co-extruded type diaphragm inflation film manufacturing machine according to claim 1 is die head especially used, it is characterised in that：In described Layer runner exit（16）Gap is designed as 2mm, internal layer runner exit（17）Gap is designed as 1.5mm, middle level runner exit（16） With internal layer runner exit（17）At a distance of 50mm.

3. a kind of three-layer co-extruded type diaphragm inflation film manufacturing machine according to claim 1 is die head especially used, it is characterised in that：It is described outer Layer runner exit（15）It is provided with outer layer runner exit spacer ring（14）, outer layer runner exit（15）Gap is fixed design and existed 0.6mm。