CN206217120U - The different co-extrusion film of fusing point it is die head especially used - Google Patents
The different co-extrusion film of fusing point it is die head especially used Download PDFInfo
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- CN206217120U CN206217120U CN201621109516.0U CN201621109516U CN206217120U CN 206217120 U CN206217120 U CN 206217120U CN 201621109516 U CN201621109516 U CN 201621109516U CN 206217120 U CN206217120 U CN 206217120U
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- 238000001125 extrusion Methods 0.000 title claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 238000009413 insulation Methods 0.000 claims abstract description 7
- 238000002844 melting Methods 0.000 claims abstract description 7
- 230000008018 melting Effects 0.000 claims abstract description 7
- 239000012528 membrane Substances 0.000 claims abstract description 5
- 238000007493 shaping process Methods 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 abstract description 12
- 239000004078 cryogenic material Substances 0.000 abstract description 4
- 230000002411 adverse Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000002985 plastic film Substances 0.000 abstract 1
- 229920006255 plastic film Polymers 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000012785 packaging film Substances 0.000 description 1
- 229920006280 packaging film Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
A kind of preparation method of the different coextruded plastic film of fusing point, it is characterized by and is layered die head, as several submodule heads, arranged by the order of shaping membrane, each submodule head has heating rod and temperature control system,, by cooling, temperature is identical when different materials is entered active cooling roller with driven rubber roll for materials with high melting point.And the die head especially used of different melting points material making co-extrusion film is thus devised, there is thermal insulation layer between the submodule head layer of different temperatures.The utility model is integrally changed small to existing equipment, the heating-up temperature of different materials creatively is separately controlled by the design of submodule head, simultaneously to materials with high melting point by cooling, make different materials into active cooling roller extruded with driven rubber roll when temperature it is identical, eliminate adverse effect of the high-temperature material to cryogenic material, so as to ensure dimensionally stable, improve product quality.
Description
Technical field
The utility model belongs to the making of film, more particularly to the die head for making co-extrusion film.
Background technology
It, in same time extrusion molding, is combined by hot melt that all layers of co-extrusion film are all, so stretching
Performance is good, surface brightness is good, meets the multinomial standard of coating glue film, food-film and senior packaging film, is widely used at present.
As shown in figure 1, being the making shaping schematic view of three-layer extrusion film, there is heating rod 12 in die head 1, die head is heated, make die lip
In plastics extruded by die lip mouth 11 into molten condition, by active cooling roller 5 and the driven rubber roll 2 of lower section（Active cooling roller and
Driven rubber roll is a pair of compression rollers）Compaction moulding, co-extrusion film 6 is wound bundled by wind-up roll 3.Eva film is novel environment friendly food
Level material, odorlessness, good hand touch, odorlessness when being burnt compared with PVC, production process is without plasticizer.Especially intermediate layer
It is EVA, the composite co-extruding film of inside and outside two layers PP improves the product needed required to film hardness, while maintain again
The transparency and glossiness of film.EVA and PP density of material reduces 50% compared with PVC, i.e., same film thickness uses EVA
And PP co-extrusions membrane material saves 50%.But, EVA and PP fusion temperatures are different, and temperature difference is larger, the fusing point of EVA 60 DEG C-
Between 100 DEG C, and the fusing point of PP is between 150 DEG C -170 DEG C.In EVA and PP co-extrusions, when same die head is processed, PP adds
200 DEG C of work temperature needs, and EVA close decomposition at 200 DEG C, cause the shape in extrusion die unstable, and co-extrusion film is uneven
Whole, this is the maximum difficulty in EVA and PP co-extrusion film production processes.
The content of the invention
The purpose of this utility model is to overcome existing different melting points material cryogenic material during co-extrusion to receive high temperature shadow
Ring shape unstable and influence the defect of product quality, there is provided a kind of stable molding, the different co-extrusion film of quality fusing point high
It is die head especially used.
A kind of different co-extrusion film of fusing point it is die head especially used, it is characterized by it and is layered die head, as several submodules
Head, is arranged by the order of shaping membrane, and each submodule head has heating rod and temperature control system, has between the submodule head layer of different temperatures
There is thermal insulation layer, the outlet height of each submodule head is identical, and there is the both sides below the die lip mouth of the die head of materials with high melting point cooling to fill
Put.The outlet height of each submodule head is identical, makes simple, temperature when ensureing that various materials reach compression roller by forced cooling
It is same or like.
The utility model makes the heating-up temperature of different materials control respectively by the design of submodule head, is had by multiple independent
Heating and temperature control system submodule head are separated with thermal insulation layer each other, have different heating-up temperatures to meet with the submodule head for ensureing different
The fusing of different materials is needed, and the melt temperature of cryogenic material is not influenceed by high-temperature material.Ensured by forced cooling various
Temperature is same or like when material reaches compression roller, adverse effect of the high-temperature material to cryogenic material is eliminated, so as to ensure shape
Stabilization, improve product quality.
Brief description of the drawings
Fig. 1 is the making schematic diagram of existing three-layer extrusion film
Fig. 2 is the schematic diagram that the utility model makes EVA and PP co-extrusion films
Wherein：The active cooling of 1 die head, 11 die lip mouth, 12 heating rod, 13 4 heat sink of thermal insulation layer 2 driven rubber roll, 3 wind-up roll 5
The co-extrusion film of roller 6.
Specific embodiment
The utility model is described in detail with reference to view, cited embodiment can make this professional skill
Art personnel more understand the utility model, but do not limit the utility model in any form.
Embodiment 1, as shown in Fig. 2 a kind of different co-extrusion film of fusing point is die head especially used, die head is layered, as some
Individual sub- die head, is to divide three layers by die head in figure, as three sub- die heads, is arranged by the order of shaping membrane, and each submodule head has
Heating rod 12, temperature control system and die lip, a feed device etc., when it is used to make PP-EVA-PP co-extrusion films, make EVA with
The temperature of PP is individually controlled, and centre is the submodule head of EVA, and heating-up temperature is 120 DEG C, and both sides are for the submodule head heating-up temperature of PP
200 DEG C, there is thermal insulation layer 13 between the submodule head layer of different temperatures.Thermal insulation layer 13 is made up of high temperature resistant tetrafluoroethene or other are resistance to
High temperature insulating material is made.The outlet of each die head is identical, and the both sides below the die lip mouth of the die head of materials with high melting point have cooling
Device 4, so that the temperature of EVA and PP is same or like when ensureing to reach active cooling roller and driven rubber roll.Heating rod and temperature control
System is mature technology, is not repeated, and remaining not described part is same as the prior art.
Claims (1)
1. a kind of different co-extrusion film of fusing point is die head especially used, it is characterised in that be layered die head, as several submodule heads,
Arranged by the order of shaping membrane, each submodule head has heating rod（12）And temperature control system, between the submodule head layer of different temperatures
With thermal insulation layer（13）, the outlet height of each submodule head is identical, and the both sides below the die lip mouth of the die head of materials with high melting point have
Heat sink（4）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621109516.0U CN206217120U (en) | 2016-10-10 | 2016-10-10 | The different co-extrusion film of fusing point it is die head especially used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621109516.0U CN206217120U (en) | 2016-10-10 | 2016-10-10 | The different co-extrusion film of fusing point it is die head especially used |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206217120U true CN206217120U (en) | 2017-06-06 |
Family
ID=58782503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621109516.0U Active CN206217120U (en) | 2016-10-10 | 2016-10-10 | The different co-extrusion film of fusing point it is die head especially used |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206217120U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106273312A (en) * | 2016-10-10 | 2017-01-04 | 福州永鑫塑料包装用品有限公司 | The manufacture method of the coextruded plastic thin film that fusing point is different and die head especially used |
-
2016
- 2016-10-10 CN CN201621109516.0U patent/CN206217120U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106273312A (en) * | 2016-10-10 | 2017-01-04 | 福州永鑫塑料包装用品有限公司 | The manufacture method of the coextruded plastic thin film that fusing point is different and die head especially used |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Coextrusion film's of fusing point difference special die head Effective date of registration: 20190927 Granted publication date: 20170606 Pledgee: Pingtan District branch of Fujian free trade zone of Bank of China Limited Pledgor: Fuzhou Yongxin Plastic Packing Articles Co., Ltd. Registration number: Y2019350000032 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210406 Granted publication date: 20170606 Pledgee: Pingtan District branch of Fujian free trade zone of Bank of China Ltd. Pledgor: FUZHOU YONGXIN PLASTIC PACKAGING PRODUCTS Co.,Ltd. Registration number: Y2019350000032 |