CN206201415U - The different coextruded plastic film of fusing point it is die head especially used - Google Patents
The different coextruded plastic film of fusing point it is die head especially used Download PDFInfo
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- CN206201415U CN206201415U CN201621109515.6U CN201621109515U CN206201415U CN 206201415 U CN206201415 U CN 206201415U CN 201621109515 U CN201621109515 U CN 201621109515U CN 206201415 U CN206201415 U CN 206201415U
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Abstract
A kind of different coextruded plastic film of fusing point it is die head especially used, be layered for die head by it, as several submodule heads, is arranged by the order of shaping membrane, and each submodule head has heating rod and temperature control system, has thermal insulation layer between the submodule head layer of different temperatures.And reached by the design of die lip mouth position and cooling device different materials into active cooling roller with driven rubber roll when temperature it is identical, eliminate high-temperature material to the adverse effect of cryogenic material, so as to ensure dimensionally stable, improve product quality.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 the same time together extrusion molding, is combined by hot melt that all layers of co-extrusion film are all, so
Tensile property is good, surface brightness is good, meets the multinomial standard of coating glue film, food-film and senior packaging film, obtains extensive at present
Using.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
Plastics in die lip are extruded into molten condition by die lip mouth 11, by active cooling roller 5 and the driven rubber roll 2 of lower section（Active cooling
Roller and driven rubber roll are 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 grade materials, odorlessness, good hand touch, odorlessness when being burnt compared with PVC, production process is without plasticizer.In especially
Interbed is EVA, and the composite co-extruding film of inside and outside two layers PP improves the product needed required to film hardness, while protect again
The transparency and glossiness of film are held.EVA and PP density of material reduces 50% compared with PVC, i.e., same film thickness makes
50% is saved with EVA and PP co-extrusions membrane material.But, EVA and PP fusion temperatures are different, and temperature difference is larger, and the fusing point of EVA exists
Between 60 DEG C -100 DEG C, and the fusing point of PP is between 150 DEG C -170 DEG C.In EVA and PP co-extrusions, same die head processing
When, 200 DEG C of PP processing temperatures needs, and EVA close decomposition at 200 DEG C, cause the shape in extrusion die unstable, co-extrusion
Film out-of-flatness, 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 coextruded plastic of quality fusing point high
Film it is die head especially used.
A kind of different coextruded plastic film of fusing point it is die head especially used, be layered for die head by it, as several submodule heads, presses
Shaping membrane order arrangement, each submodule head have heating rod and temperature control system, different temperatures submodule head layer between have every
Thermosphere.
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.
The utility model reaches different materials into temperature phase when active cooling roller and driven rubber roll by following design
Together, adverse effect of the high-temperature material to cryogenic material is eliminated, so that ensure dimensionally stable, improve product quality.
The die lip mouth of the die head of materials with high melting point is more than cryogenic material with the distance between active cooling roller and driven rubber roll
Die lip mouth and the distance between active cooling roller and driven rubber roll.Materials with high melting point is first extruded and first lowered the temperature, so as to ensure to reach
Temperature is same or like when active cooling roller and driven rubber roll.
In the ban extrusion can't reach temperature it is same or like when, the both sides below the die lip mouth of the die head of materials with high melting point
With heat sink.Temperature is identical when ensureing that various materials reach active cooling rollers with driven rubber roll by forced cooling or phase
Closely.
The utility model integrally changes small to existing equipment, creatively makes adding for different materials by the design of submodule head
Hot temperature is separately controlled, while to materials with high melting point by cooling, making different materials enter active cooling roller and driven glue
Temperature is identical when roller is extruded, and eliminates adverse effect of the high-temperature material to cryogenic material, so as to ensure dimensionally stable, improves product matter
Amount.
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
Fig. 3 is the schematic diagram of the utility model embodiment 2
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 dividing three layers by die head, as three sub- die heads, is arranged by the order of shaping membrane, each
Submodule head has heating rod 12, temperature control system and die lip, a feed device etc., the temperature of EVA and PP is individually controlled, centre
It is the submodule head of EVA, heating-up temperature is 120 DEG C, both sides are 200 DEG C, the submodule of different temperatures for the submodule head heating-up temperature of PP
There is thermal insulation layer 13 between head layer.Thermal insulation layer 13 is made up of high temperature resistant tetrafluoroethene or other high-temperature insulation materials are made.It is high
Melting material（PP）The distance between die lip mouth and the driven rubber roll of die head be more than cryogenic material（EVA）Die lip mouth 11 with from
The distance between dynamic rubber roll, materials with high melting point is first extruded and first lowered the temperature, so that temperature when ensureing to reach active cooling roller and driven rubber roll
Degree is same or like.I.e. PP is first extruded, after EVA is extruded, by export lower the temperature, make EVA and PP enter active cooling roller 5 and from
Temperature is identical during dynamic rubber roll 2, and extrusion stretching sizing is carried out in the middle of active cooling roller and driven rubber roll, produces high-quality common
Extruded film 6.Heating rod and temperature control system are mature technology, are not repeated, and remaining not described part is same as the prior art.
Embodiment 2, as shown in figure 3, in embodiment 1, temperature is identical when the design extruded in the ban can't reach extruding
Or it is close, the both sides below the die lip mouth of the die head of materials with high melting point have heat sink 4.Ensured by forced cooling various
Temperature is same or like when material reaches active cooling roller and the extruding of driven rubber roll.Remaining not described part is identical with embodiment 1.
Claims (3)
1. a kind of different coextruded plastic film of fusing point is die head especially used, it is characterised in that be layered die head, as some height
Die head, is arranged by the order of shaping membrane, and each submodule head has heating rod（12）And temperature control system, the submodule head layer of different temperatures
Between have thermal insulation layer（13）.
2. a kind of different coextruded plastic film of fusing point according to claim 1 is die head especially used, it is characterised in that Gao Rong
The die lip mouth and active cooling roller of the die head of point material（5）With driven rubber roll（2）The distance between more than cryogenic material die lip
Mouth and active cooling roller（5）With driven rubber roll（2）The distance between.
3. a kind of different coextruded plastic film of fusing point according to claim 1 is die head especially used, it is characterised in that Gao Rong
Both sides below the die lip mouth of the die head of point material have heat sink（4）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621109515.6U CN206201415U (en) | 2016-10-10 | 2016-10-10 | The different coextruded plastic film of fusing point it is die head especially used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621109515.6U CN206201415U (en) | 2016-10-10 | 2016-10-10 | The different coextruded plastic film of fusing point it is die head especially used |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206201415U true CN206201415U (en) | 2017-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621109515.6U Active CN206201415U (en) | 2016-10-10 | 2016-10-10 | The different coextruded plastic film of fusing point it is die head especially used |
Country Status (1)
| Country | Link |
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| CN (1) | CN206201415U (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 CN201621109515.6U patent/CN206201415U/en active Active
Cited By (2)
| 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 |
| CN106273312B (en) * | 2016-10-10 | 2019-02-22 | 福州永鑫塑料包装用品有限公司 | The production method of coextruded plastic film with different melting points 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: Different co -extrusion of fusing point expects special die head of film Effective date of registration: 20190927 Granted publication date: 20170531 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: 20170531 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 |