CN203622918U - EVA (Ethylene Vinyl Acetate) glue film destressing device - Google Patents
EVA (Ethylene Vinyl Acetate) glue film destressing device Download PDFInfo
- Publication number
- CN203622918U CN203622918U CN201320781108.XU CN201320781108U CN203622918U CN 203622918 U CN203622918 U CN 203622918U CN 201320781108 U CN201320781108 U CN 201320781108U CN 203622918 U CN203622918 U CN 203622918U
- Authority
- CN
- China
- Prior art keywords
- infrared heating
- heating pipe
- concave mirror
- eva
- destressing device
- 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.)
- Withdrawn - After Issue
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Classifications
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/91—Heating, e.g. for cross linking
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials For Medical Uses (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to an EVA (Ethylene Vinyl Acetate) glue film destressing device, belonging to the technical field of forming of plastics. The EVA glue film destressing device comprises an infrared heating tube and a concave reflecting mirror arranged below the die head of an extruder, wherein the concave reflecting mirror extends along the axial direction of the infrared heating tube and is arranged on one side of a film below the outlet of the die head of the extruder; the infrared heating tube is arranged on the focus length of the concave reflecting mirror. The EVA glue film destressing device has the advantages of simple structure and capability of effectively lowering the thermal shrinkage rate of an EVA glue film.
Description
Technical field
The utility model relates to a kind of glued membrane destressing device, belongs to the field shaping technique of plastics.
Background technology
At present, the encapsulation of solar cell generally adopts ethene one vinyl acetate copolymer (EVA) glued membrane that solar battery sheet is sealed, and with up and down respectively layer a protective material be bonded together, form solar module.EVA is a kind of typical random macromolecular compound, and it has good wellability in the time of heating and melting, has good flexibility, anti-stress cracking and adhesive property when cooling curing, is a kind of comparatively desirable material that can be used for solar cell package.
The production process that EVA film forming adopts is: the EVA film of extruding from extruder die head, it need to grow through too much group of transfer roller the transmission of distance, makes EVA film be able to cooling and sizing in transport process, finally carries out after rolling.
Applicant finds, the EVA diaphragm of applying for photovoltaic cell encapsulation etc., and percent thermal shrinkage is an important index, percent thermal shrinkage is lower more favourable for application such as postorder photovoltaic cell encapsulation.But, existing equipment carries out tempering destressing and eliminates stress after the sizing of EVA film, reduce thermal contraction, but bad for the global quality control of EVA diaphragm, can not when being carried out to percent thermal shrinkage control, EVA film carry out the control of the indexs such as EVA film planarization.
Utility model content
The technical problems to be solved in the utility model is, for prior art deficiency, proposes a kind of simple in structure and can evenly effectively reduce the EVA glued membrane destressing device of EVA glued membrane percent thermal shrinkage.
The utility model is that the technical scheme that solves the problems of the technologies described above proposition is: a kind of EVA glued membrane destressing device, comprise infrared heating pipe and the concave mirror of being located at extruder die head below, described concave mirror extends axially along infrared heating pipe, described concave mirror is located at the diaphragm one side place of the outlet below of extruder die head, and described infrared heating pipe is located on concave mirror focal length.
The utility model adopts the beneficial effect of technique scheme to be: by infrared heating pipe and concave mirror are located to extruder die head below, concave mirror extends axially along infrared heating pipe, concave mirror is located at the diaphragm one side place of the outlet below of extruder die head, and infrared heating pipe is located on concave mirror focal length; Heat by infrared heating pipe, can effectively reduce EVA glued membrane percent thermal shrinkage, after infrared light infrared heating pipe being sent by concave mirror reflects, evenly export, can reduce uniformly EVA glued membrane percent thermal shrinkage, overall structure is simple.
The improvement of technique scheme is: described infrared heating pipe is three infrared heating pipe that are arranged side by side up and down, and described concave mirror is three concave mirrors that are arranged side by side up and down, and each infrared heating pipe is located on a concave mirror focal length.
The improvement of technique scheme is: described infrared heating pipe is the twin pipe infrared radiator of medium wave.
The improvement of technique scheme is: the two ends of described concave mirror is provided with speculum plug.
The utility model adopts the beneficial effect of technique scheme to be: be provided with speculum plug by the two ends of concave mirror, the infrared ray that infrared heating pipe is sent further reflexes on EVA glued membrane, has improved efficiency.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is the structural representation of the utility model embodiment E VA glued membrane destressing device.
The specific embodiment
Embodiment
The EVA glued membrane destressing device of the present embodiment, as shown in Figure 1, comprises infrared heating pipe 2 and the concave mirror 3 of being located at extruder die head 1 below.Concave mirror 3 extends axially along infrared heating pipe 2, and concave mirror 3 is located at the diaphragm one side place of the outlet below of extruder die head 1, and infrared heating pipe 2 is located on concave mirror 3 focal lengths.
The infrared heating pipe 2 of the present embodiment is three infrared heating pipe that are arranged side by side up and down.Concave mirror 3 is three concave mirrors that are arranged side by side up and down.Each infrared heating pipe 2 is located on concave mirror 3 focal lengths.
The infrared heating pipe 2 of the present embodiment is the twin pipe infrared radiator of medium wave.
The two ends of the concave mirror 3 of the present embodiment is provided with speculum plug.
The utility model is not limited to above-described embodiment.All employings are equal to replaces the technical scheme forming, and all drops on the protection domain of the utility model requirement.
Claims (4)
1. an EVA glued membrane destressing device, it is characterized in that: comprise infrared heating pipe and the concave mirror of being located at extruder die head below, described concave mirror extends axially along infrared heating pipe, described concave mirror is located at the diaphragm one side place of the outlet below of extruder die head, and described infrared heating pipe is located on concave mirror focal length.
2. EVA glued membrane destressing device as claimed in claim 1, it is characterized in that: described infrared heating pipe is three infrared heating pipe that are arranged side by side up and down, described concave mirror is three concave mirrors that are arranged side by side up and down, and each infrared heating pipe is located on a concave mirror focal length.
3. EVA glued membrane destressing device as claimed in claim 1 or 2, is characterized in that: described infrared heating pipe is the twin pipe infrared radiator of medium wave.
4. EVA glued membrane destressing device as claimed in claim 1 or 2, is characterized in that: the two ends of described concave mirror is provided with speculum plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320781108.XU CN203622918U (en) | 2013-12-03 | 2013-12-03 | EVA (Ethylene Vinyl Acetate) glue film destressing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320781108.XU CN203622918U (en) | 2013-12-03 | 2013-12-03 | EVA (Ethylene Vinyl Acetate) glue film destressing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203622918U true CN203622918U (en) | 2014-06-04 |
Family
ID=50809432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320781108.XU Withdrawn - After Issue CN203622918U (en) | 2013-12-03 | 2013-12-03 | EVA (Ethylene Vinyl Acetate) glue film destressing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203622918U (en) |
Cited By (2)
| 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 |
| 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 |
-
2013
- 2013-12-03 CN CN201320781108.XU patent/CN203622918U/en not_active Withdrawn - After Issue
Cited By (3)
| 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 |
| 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 |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140604 Effective date of abandoning: 20160622 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140604 Effective date of abandoning: 20160622 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |