CN202922954U - Adhesive film preparation device capable of improving shrinkage ratio of EVA (Ethylene-Vinyl Acetate) adhesive film - Google Patents
Adhesive film preparation device capable of improving shrinkage ratio of EVA (Ethylene-Vinyl Acetate) adhesive film Download PDFInfo
- Publication number
- CN202922954U CN202922954U CN2012205219613U CN201220521961U CN202922954U CN 202922954 U CN202922954 U CN 202922954U CN 2012205219613 U CN2012205219613 U CN 2012205219613U CN 201220521961 U CN201220521961 U CN 201220521961U CN 202922954 U CN202922954 U CN 202922954U
- Authority
- CN
- China
- Prior art keywords
- glued membrane
- adhesive film
- shrinkage factor
- heating element
- heater
- 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 - Lifetime
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/91—Heating, e.g. for cross linking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92514—Pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92923—Calibration, after-treatment or cooling zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
- B29C48/914—Cooling of flat articles, e.g. using specially adapted supporting means cooling drums
Abstract
The utility model discloses an adhesive film preparation device capable of improving shrinkage ratio of an EVA (Ethylene-Vinyl Acetate) adhesive film. The adhesive film preparation device comprises a film preparation mould and a film preparation pressure roller, wherein the device is provided with a heating device between a mould lip of the mould and the film preparation pressure roller; the heating device is provided with heating elements corresponding to the front surface and the back surface of the adhesive film between the mould lip and the film preparation pressure roller; the heating elements are upwards arranged along the width direction of the adhesive film; and the heating device is further provided with a heating temperature controller. According to the adhesive film preparation device disclosed by the utility model, the temperatures of the two sides are consistent with the temperature of the middle of the adhesive film as far as possible; the temperature difference of the adhesive film along the width direction is smaller than +/- 1 DEG C; and the residual stress can be effectively relieved, so that the difference ratio of the heat shrinkage ratio of the adhesive film is low, thereby effectively controlling the shrinkage ratio of the EVA adhesive film. The adhesive film preparation device has the advantages that the heating device is compact in structure and simple and convenient to operate, the energy consumption is low, the residual stress is relieved completely, and the difference ratio of the shrinkage ratio of the adhesive film is smaller than and equal to 3%; and the integral shrinkage ratio of the adhesive film is reduced by 10%-15%.
Description
Technical field
The utility model relates to the Preparation equipment of a kind of EVA for solar cell package (ethylene-vinyl acetate copolymer) glued membrane.
Background technology
The filming technology of EVA solar energy glued membrane is divided into two kinds of the tape casting and rolling processes.The tape casting is to utilize the mobility of the height that the EVA resin has under molten condition, and using the clothes hanger type mould is the technique that shaping jig is produced the EVA glued membrane; Rolling process is the highly-malleable of utilizing the EVA resin to have under molten condition, uses roller to produce the technique of EVA glued membrane as shaping jig.The unit equipment investment that both compare rolling process technique is large, technological process is complicated, variance rate shrinkage factor more is difficult to control, so the filming technology of EVA solar energy glued membrane mainly adopts the tape casting at present.
At present EVA solar energy glued membrane is take the EVA(ethylene-vinyl acetate copolymer) be mainly to adopt the tape casting by primary raw material, through blend, heating raw, extrude, glued membrane that the operation one-shot formings such as calendering, cooling forming, rolling are prepared.The tape casting processing EVA solar energy glued membrane generally adopts the rack-style mould molding.Reasons in structure due to the rack-style mould, the EVA molten mass is when mould flows out, temperature in the middle of the film width film during than high 6～10 ° of C(glued membrane film lips of temperature of both sides temperature be 80～90 ° of C), cause thus the variance rate of the shrinkage factor of both sides after coating film forming than middle high 10～20%(water soluble method).Shrinkage factor is larger, and the stress that glued membrane is produced by thermal contraction can cause cell-slice displacement and cracked.Controlling EVA glued membrane shrinkage factor is a key technology that guarantees the solar cell quality.
Summary of the invention
Technical problem to be solved in the utility model is to overcome in above-mentioned existing the tape casting technology the high and inconsistent shortcoming of broad ways of shrinkage factor, a kind of glued membrane Preparation equipment of the EVA of improvement glued membrane shrinkage factor is provided, the variance rate of glued membrane percent thermal shrinkage is controlled at≤3%, and make glued membrane overall shrinkage decline 10-15%.For this reason, the utility model by the following technical solutions: it comprises masking mould and masking pressure roller, and the molding pressure roller is in the film lip below of described mould; Between the film lip and masking pressure roller of mould, described equipment is provided with heater, the front and back that described heater correspondence is in glued membrane between film lip and masking pressure roller arranges heating element heater, described heating element heater is along arranging on the glued membrane width, and described heater also is provided with the heating and temperature control device.
On the basis of adopting technique scheme, the utility model also can adopt following further technical scheme:
The corresponding described front and back of described heater arranges some groups with respect to the symmetrically arranged heating element heater of glued membrane in the left and right respectively, and the heating element heater position can be surveyed shrinkage factor according to glued membrane and be adjusted along the width of glued membrane.
Described heating element heater is divided into a plurality of heating units that temperature controller is independently controlled that are heated along the width of glued membrane.
Film lip and the distance between described heater of described mould are 10～100 millimeters.
Described heating element heater is far infrared heating.
Along the width of glued membrane, described heating element heater position is adjustable along the width of glued membrane according to glued membrane actual measurement shrinkage factor.
The width of described heater is greater than the width of glued membrane.
The thickness of described glued membrane is 0.3～0.8 mm, and width is 650-2200mm.
Owing to adopting the technical solution of the utility model, the utility model can heat glued membrane, make glued membrane both sides consistent as far as possible with middle temperature, the glued membrane broad ways temperature difference is less than ± 1 ℃, can more effectively eliminate residual stress, make the variance rate of glued membrane percent thermal shrinkage lower, thereby effectively control the shrinkage factor of EVA glued membrane.And the utility model namely to its heating, is heated to the scheme of 90 ° of C again after the film temperature is cooled to normal temperature than back segment after glued membrane flows out mould, and physical dimension of the present utility model is simple, the heating energy consumption is also less.The utility model is compared with existing heat treatment mode and is had the following advantages: 1, heater compact conformation, and simple to operation; 2, energy consumption is low; 3, eliminate residual stress more thorough, the variance rate of glued membrane shrinkage factor is less than or equal to 3%, and makes glued membrane overall shrinkage decline 10-15%.
Description of drawings
Fig. 1 is schematic diagram of the present utility model.
Fig. 2 is the schematic layout pattern of heating element heater of the present utility model.
The specific embodiment
With reference to accompanying drawing.The utility model comprises masking mould 100 and masking pressure roller 4, and molding pressure roller 4 is in the film lip below of mould 100; Between the film lip 1 and masking pressure roller 4 of mould, described equipment is provided with heater 3, the front and back that described heater 3 correspondences are in glued membrane 2 between film lip 1 and masking pressure roller 4 arranges heating element heater, described heating element heater arranges along the glued membrane width, and described heater also is provided with the heating and temperature control device.
With reference to Fig. 2, the corresponding described front and back of described heater arranges some groups of heating element heater A, B, C, D in the left and right respectively, their width represents with W2, be in positive respectively organize heating element heater A, B and survey shrinkage factor along the width setting of glued membrane according to glued membrane, what be in the back side respectively organizes heating element heater C, D according to the width setting of glued membrane actual measurement shrinkage factor along glued membrane.Being in positive heating element heater is symmetrical arranged with respect to glued membrane 2 with the heating element heater that is in the back side.
With reference to Fig. 2, when EVA glued membrane 2 flows out film lip 1, temperature is 80～90 ° of C, along the temperature of width W 1 in the middle of the direction film of glued membrane 2 high 6～10 ° of C of temperature than both sides, heating element heater A, B, C, D are separately positioned on front, the back side of glued membrane and are in the both sides of broad ways W1, and A, B, C, D respectively organize the width W 3 of the heater 3 that heating element heater forms more than or equal to the width W 1 of glued membrane 2.
Described heating element heater is divided into a plurality of heating units that temperature controller is independently controlled that are heated along the width of glued membrane, making each heating element heater is gradual change along the temperature of film width, during production, the efficiency of heating surface of regulating respectively heating element heater A, B, C, D along the thermograde of width W 1 direction in the time of can leaving film lip 1 according to glued membrane 2 heats glued membrane, by the temperature that adds hot melt adhesive film being regulated accurately the shrinkage factor with effective control glued membrane, the variance rate of glued membrane percent thermal shrinkage is controlled at≤3%, and make glued membrane overall shrinkage decline 10-15%.
Described heating element heater is far infrared heating.
Claims (9)
1. a glued membrane Preparation equipment that improves EVA glued membrane shrinkage factor, comprise masking mould and masking pressure roller, and the molding pressure roller is in the film lip below of described mould; It is characterized in that between the film lip and masking pressure roller of mould, described equipment is provided with heater, the front and back that described heater correspondence is in glued membrane between film lip and masking pressure roller arranges heating element heater, described heating element heater is along arranging on the glued membrane width, and described heater also is provided with the heating and temperature control device.
2. a kind of glued membrane Preparation equipment that improves EVA glued membrane shrinkage factor as claimed in claim 1, is characterized in that the corresponding described front and back of described heater arranges some groups of heating element heaters in the left and right respectively.
3. a kind of glued membrane Preparation equipment that improves EVA glued membrane shrinkage factor as claimed in claim 2, is characterized in that the heating element heater that is in positive heating element heater and is in the back side is symmetrical arranged with respect to glued membrane.
4. as claim 1,2 or 3 described a kind of glued membrane Preparation equipments that improve EVA glued membrane shrinkage factor, it is characterized in that heating element heater is divided into a plurality of heating units that temperature controller is independently controlled that are heated along the width of glued membrane.
5. a kind of glued membrane Preparation equipment that improves EVA glued membrane shrinkage factor as claimed in claim 1, is characterized in that the film lip of mould and the distance between described heater are 10～100 millimeters.
6. a kind of glued membrane Preparation equipment that improves EVA glued membrane shrinkage factor as claimed in claim 1, is characterized in that heating element heater is far infrared heating.
7. a kind of glued membrane Preparation equipment that improves EVA glued membrane shrinkage factor as claimed in claim 1 is characterized in that described heating element heater position is adjustable along the width of glued membrane according to glued membrane actual measurement shrinkage factor.
8. a kind of glued membrane Preparation equipment that improves EVA glued membrane shrinkage factor as claimed in claim 1, is characterized in that the width of described heater is greater than the width of glued membrane.
9. a kind of glued membrane Preparation equipment that improves EVA glued membrane shrinkage factor as claimed in claim 1, the thickness that it is characterized in that described glued membrane is 0.3～0.8 mm, width is 650-2200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205219613U CN202922954U (en) | 2012-10-11 | 2012-10-11 | Adhesive film preparation device capable of improving shrinkage ratio of EVA (Ethylene-Vinyl Acetate) adhesive film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205219613U CN202922954U (en) | 2012-10-11 | 2012-10-11 | Adhesive film preparation device capable of improving shrinkage ratio of EVA (Ethylene-Vinyl Acetate) adhesive film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202922954U true CN202922954U (en) | 2013-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205219613U Expired - Lifetime CN202922954U (en) | 2012-10-11 | 2012-10-11 | Adhesive film preparation device capable of improving shrinkage ratio of EVA (Ethylene-Vinyl Acetate) adhesive film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202922954U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103660245A (en) * | 2013-12-03 | 2014-03-26 | 苏州泰科尼光伏材料有限公司 | EVA adhesive film destressing apparatus |
| CN103817943A (en) * | 2013-11-19 | 2014-05-28 | 浙江祥邦科技有限公司 | Microwave treatment method for shrinkage rate of thin films or packaging adhesive films |
| 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 |
| CN108621353A (en) * | 2017-03-24 | 2018-10-09 | 阿特斯阳光电力集团有限公司 | Photovoltaic encapsulation glued membrane preparation facilities |
-
2012
- 2012-10-11 CN CN2012205219613U patent/CN202922954U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103817943A (en) * | 2013-11-19 | 2014-05-28 | 浙江祥邦科技有限公司 | Microwave treatment method for shrinkage rate of thin films or packaging adhesive films |
| CN103817943B (en) * | 2013-11-19 | 2016-02-24 | 浙江祥邦科技有限公司 | For the microwave handling method of film or packaging adhesive film shrinkage factor |
| CN103660245A (en) * | 2013-12-03 | 2014-03-26 | 苏州泰科尼光伏材料有限公司 | EVA adhesive film destressing apparatus |
| CN103660245B (en) * | 2013-12-03 | 2016-06-22 | 苏州泰科尼光伏材料有限公司 | EVA adhesive film destressing device |
| 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 |
| CN108621353A (en) * | 2017-03-24 | 2018-10-09 | 阿特斯阳光电力集团有限公司 | Photovoltaic encapsulation glued membrane preparation facilities |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130508 |