CN202123668U - EVA (Ethylene Vinyl Acetate) membrane production unit - Google Patents
EVA (Ethylene Vinyl Acetate) membrane production unit Download PDFInfo
- Publication number
- CN202123668U CN202123668U CN2011202580323U CN201120258032U CN202123668U CN 202123668 U CN202123668 U CN 202123668U CN 2011202580323 U CN2011202580323 U CN 2011202580323U CN 201120258032 U CN201120258032 U CN 201120258032U CN 202123668 U CN202123668 U CN 202123668U
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- China
- Prior art keywords
- cooling
- roll
- diaphragm
- roller
- eva
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004519 manufacturing process Methods 0.000 title abstract description 10
- 239000012528 membrane Substances 0.000 title abstract 9
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 title abstract 6
- 239000005038 ethylene vinyl acetate Substances 0.000 title abstract 6
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 title abstract 6
- 238000001816 cooling Methods 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000003490 calendering Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000007766 curtain coating Methods 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- OOVXWEQVEHIHSO-UHFFFAOYSA-N acetic acid ethene Chemical compound C=C.C=C.C=C.CC(O)=O OOVXWEQVEHIHSO-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to an EVA (Ethylene Vinyl Acetate) membrane production unit, which comprises a die, a cooling rubber roller and an engraved roller arranged below the die, a main cooling roller arranged at one side of the engraved roller, and a middle-wave twin-tube infrared radiator arranged at one side of a membrane arranged below the bottom outlet of the die, wherein the bottom part of the cooling rubber roller far from the membrane is provided with a first small cooling roller used for cooling the surface of the cooling rubber roller; and the bottom part of the engraved roller adjacent to the cooling rubber roller is provided with a second small cooling roller used for cooling the outer side surface of the membrane on the bottom surface of the engraved roller. As the middle-wave twin-tube infrared radiator used for heating the membrane is arranged at one side of the membrane below the bottom outlet of the die and above the surfaces of the cooling rubber roller and the engraved roller, the thermal shrinkage of the EVA membrane can be effectively reduced and the production efficiency can be improved simultaneously. The first small cooling roller and the second small cooling roller employed are suitable for further improving the cooling efficiency and the production efficiency and reducing the thermal shrinkage of the EVA membrane, thus improving the product quality.
Description
Technical field
The utility model relates to the technical field of sheet material extruding production line, specifically is a kind of process units of EVA diaphragm.
Background technology
At present, the production of EVA (acetic acid-ethene resin copolymer) diaphragm is mainly and extrudes curtain coating or extrusion calendaring production.Main component is that the raw material of EVA is melt state through the extruder plasticizing, and making melt forming through flat molds then is sheet, accomplishes the production of diaphragm again through steps such as follow-up silica gel pressure roller, the cold roller typing of embossing, traction, rollings.
General curtain coating or the extrusion calendaring extruded produced plastic film and is actually a kind of simple tension method, promptly goes out between die orifice to cold roller stretching is arranged at melt, and thin more diaphragm stretches many more, the diaphragm thickness that leans on cold roller speed and melt outflow speed difference to obtain to require.Because PUR characteristics such as EVA, the stretching after the depanning are the main causes that product generation thermal contraction produces.
Owing to contain crosslinking agents such as peroxide in the photovoltaic cell packaging EVA diaphragm composition; In order to prevent cross-linking reaction in advance; Adopt existing processes and equipment to determine EVA diaphragm extrusion plasticizing could carry out smoothly down at the low temperature (80-90 ℃) of strictness, low temperature means that fluidity of molten descends.
For the EVA diaphragm of application such as photovoltaic cell encapsulation, percent thermal shrinkage is a very important index, and general the requirement is below 5%, and percent thermal shrinkage is low more favourable more for application such as postorder photovoltaic cell encapsulation.
At present, PUR diaphragm manufacturer such as EVA takes method to mainly contain in order to reach the percent thermal shrinkage index:
1. adopt the methods such as stretching reduce behind the mould to reach the minimizing percent thermal shrinkage, for this reason, have to wait and control diaphragm thickness through reducing mould die lip aperture.The method causes to make and extrudes back pressure and heighten, and energy consumption heightens, and fluidity of molten further descends, and has seriously reduced production efficiency; And make the control of mould and extruder temperature that difficulty take place.
2. adopt stress in the method elimination process that adds tempering destressing device after the film typing, reduce thermal contraction.The method extends production line greatly, and equipment cost significantly increases; And the indexs such as planarization of tempering caudacoria are difficult to control.
The utility model content
The process units of the EVA diaphragm that can also boost productivity when the technical problem that the utility model will solve provides a kind of simple in structure, the percent thermal shrinkage that can effectively reduce the EVA film.
In order to solve the problems of the technologies described above; The utility model provides a kind of process units of EVA diaphragm; Comprise: being used for the EVA melt forming is the mould of diaphragm; Be located at the outlet at bottom below of this mould and the cooling rubber roll and the patterned roll that are used to push, draw said diaphragm of adjacent setting, be located at this patterned roll one side be used to cool off and draw from the main chill roll of the diaphragm of exporting between said cooling rubber roll and the patterned roll; It is characterized in that also comprising: said diaphragm one side and the twin pipe infrared radiator of medium wave that is used to heat said diaphragm above the roll surface of said cooling rubber roll and patterned roll of being located at the outlet at bottom below of mould; The bottom away from said diaphragm of said cooling rubber roll is provided with the first cooling pony roll that is used for said cooling rubber roll roll surface; Said patterned roll be provided with the second cooling pony roll of the lateral surface that is used to cool off the diaphragm on the said patterned roll bottom surface with the adjacent bottom of said cooling rubber roll.
Further, the central axes of said cooling rubber roll, the first cooling pony roll, patterned roll, the second cooling pony roll and main chill roll distributes.
The technique scheme of the utility model is compared prior art and is had the following advantages: the process units of the EVA diaphragm of the utility model; Through said diaphragm one side below the outlet at bottom of mould and above the roll surface of said cooling rubber roll and patterned roll, be provided with one be used to heat said diaphragm the twin pipe infrared radiator of medium wave; With the percent thermal shrinkage of effective reduction EVA film, can boost productivity simultaneously.The first cooling pony roll, the second cooling pony roll that adopt are suitable for further improving cooling effectiveness and productivity ratio, further reduce the percent thermal shrinkage of EVA film, and then improve product quality.
Description of drawings
For the content that makes the utility model is more clearly understood, below basis specific embodiment and combine accompanying drawing, the utility model is done further detailed explanation, wherein
Fig. 1 is the structural representation of process units of the EVA diaphragm of the utility model.
The specific embodiment
See Fig. 1; The process units of the EVA diaphragm of present embodiment comprises: being used for the EVA melt forming is the mould 1 of diaphragm 8; Be located at the outlet at bottom below of this mould 1 and the cooling rubber roll 3 and the patterned roll 5 that are used to push, draw said diaphragm 8 of adjacent setting, be located at these patterned roll 5 one sides be used to cool off and draw from the main chill roll 7 of the diaphragm of exporting between said cooling rubber roll 3 and the patterned roll 58; It is characterized in that also comprising: said diaphragm 8 one sides and the twin pipe infrared radiator 2 of medium wave that is used to heat said diaphragm 8 above the roll surface of said cooling rubber roll 3 and patterned roll 5 of being located at the outlet at bottom below of mould 1; The bottom away from said diaphragm 8 of said cooling rubber roll 3 is provided with the first cooling pony roll 4 that is used for said cooling rubber roll 3 roll surfaces; Said patterned roll 5 be provided with the second cooling pony roll 6 of the lateral surface that is used to cool off the diaphragm 8 on said patterned roll 5 bottom surfaces with said cooling rubber roll 3 adjacent bottoms.
The twin pipe infrared radiator 2 of medium wave can shift significant amount of energy, Fast Heating targetedly at short notice.Plastics, water and other solvent can more easily absorb the medium wave infra-red radiation.The medium wave infrared radiator mainly is applicable to the effective oven dry of coating and paint and the economic treatment of plastic sheeting and thin slice.This type radiator long service life is particularly useful for continuing the technical process of carrying out.Can obtain efficient Fast Heating than thin and very thin material.The length of our medium wave infrared radiator can reach 6 meters.Twin pipe radiator has advantages of higher stability and power density, is furnished with gold-plated reflectance coating simultaneously, can make its radiation more accurately, efficient is higher.
The central axes that said cooling rubber roll 3, first cools off pony roll 4, patterned roll 5, the second cooling pony roll 6 and main chill roll 7 distributes.
Obviously, the foregoing description only be for explain clearly that the utility model does for example, and be not to be qualification to the embodiment of the utility model.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all embodiments.And conspicuous variation that these spirit that belong to the utility model are extended out or change still are among the protection domain of the utility model.
Claims (2)
1. the process units of an EVA diaphragm; It comprises: being used for the EVA melt forming is the mould (1) of diaphragm (8); Be located at the outlet at bottom below of this mould (1) and the cooling rubber roll (3) and the patterned roll (5) that are used for extruding, draw said diaphragm (8) of adjacent setting; That is located at these patterned roll (5) one sides is used for cooling and the traction main chill roll (7) from the diaphragm (8) exported between said cooling rubber roll (3) and the patterned roll (5)
It is characterized in that also comprising:
Be located at said diaphragm (8) one sides and the twin pipe infrared radiator of medium wave (2) that is used to heat said diaphragm (8) above the roll surface of said cooling rubber roll (3) and patterned roll (5) of the outlet at bottom below of mould (1);
The bottom away from said diaphragm (8) of said cooling rubber roll (3) is provided with the first cooling pony roll (4) that is used for said cooling rubber roll (3) roll surface;
Said patterned roll (5) be provided with the second cooling pony roll (6) of the lateral surface that is used to cool off the diaphragm (8) on said patterned roll (5) bottom surface with the adjacent bottom of said cooling rubber roll (3).
2. the process units of EVA diaphragm according to claim 1 is characterized in that: the central axes of said cooling rubber roll (3), the first cooling pony roll (4), patterned roll (5), the second cooling pony roll (6) and main chill roll (7) distributes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202580323U CN202123668U (en) | 2011-07-20 | 2011-07-20 | EVA (Ethylene Vinyl Acetate) membrane production unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202580323U CN202123668U (en) | 2011-07-20 | 2011-07-20 | EVA (Ethylene Vinyl Acetate) membrane production unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202123668U true CN202123668U (en) | 2012-01-25 |
Family
ID=45486739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202580323U Expired - Fee Related CN202123668U (en) | 2011-07-20 | 2011-07-20 | EVA (Ethylene Vinyl Acetate) membrane production unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202123668U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018035885A1 (en) * | 2016-08-23 | 2018-03-01 | 江门市辉隆塑料机械有限公司 | Method and device for enhancing peel strength of extruded compound |
| CN107791483A (en) * | 2017-10-17 | 2018-03-13 | 武汉现代精工机械股份有限公司 | A kind of EVA film moulding process and former |
| CN108466415A (en) * | 2018-05-04 | 2018-08-31 | 湖南烁普新材料有限公司 | Wet method diaphragm membrane preparation facilities and preparation method |
| CN113524542A (en) * | 2021-07-12 | 2021-10-22 | 苏州金韦尔机械有限公司 | High-precision temperature control film casting machine |
-
2011
- 2011-07-20 CN CN2011202580323U patent/CN202123668U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018035885A1 (en) * | 2016-08-23 | 2018-03-01 | 江门市辉隆塑料机械有限公司 | Method and device for enhancing peel strength of extruded compound |
| CN107791483A (en) * | 2017-10-17 | 2018-03-13 | 武汉现代精工机械股份有限公司 | A kind of EVA film moulding process and former |
| CN114953390A (en) * | 2017-10-17 | 2022-08-30 | 武汉现代精工机械股份有限公司 | EVA film forming process and forming equipment |
| CN108466415A (en) * | 2018-05-04 | 2018-08-31 | 湖南烁普新材料有限公司 | Wet method diaphragm membrane preparation facilities and preparation method |
| CN108466415B (en) * | 2018-05-04 | 2023-11-24 | 湖南烁普新材料有限公司 | Wet diaphragm membrane preparation device and preparation method |
| CN113524542A (en) * | 2021-07-12 | 2021-10-22 | 苏州金韦尔机械有限公司 | High-precision temperature control film casting machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHANGZHOU CHEER PLASTIC MACHINERY CO., LTD. Free format text: FORMER OWNER: JIANG HUAIYANG Effective date: 20121012 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 213000 CHANGZHOU, JIANGSU PROVINCE TO: 213025 CHANGZHOU, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121012 Address after: 213025 Jiangsu province Changzhou city Hutang District Wujin Town West Industrial Park West Road No. 9 Patentee after: Changzhou Cheer Plastic Machinery Co., Ltd. Address before: 213000 135-, Ding -402, machinery village, bell tower area, Jiangsu, Changzhou Patentee before: Jiang Huaiyang |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120125 Termination date: 20150720 |
|
| EXPY | Termination of patent right or utility model |