Novel film spraying device for producing photovoltaic adhesive film

Abstract

The utility model discloses a novel laminating device for producing photovoltaic adhesive film, which comprises a mesh belt machine, a mould and an embossing roller assembly, the mesh belt machine comprises a rack and a driving roller driver, the left end and the right end of the rack are respectively provided with a driven roller and a driving roller, the two ends of a metal woven mesh belt are respectively wound on the driven roller and the driving roller, and the mould is arranged on the embossing roller assembly. The surface of the metal woven mesh belt is provided with embossed patterns for forming embossed patterns on the surface of one side of the photovoltaic adhesive film; the mold is positioned above the left end of the rack and is used for extruding a photovoltaic adhesive film; the knurling roller assembly is located below the outer side of the right end of the rack and comprises a connecting base connected with the rack, a knurling roller rotationally and movably connected with the connecting base and a knurling roller driver connected with the connecting base and used for driving the knurling roller to be close to or away from the driving roller; an embossing channel is formed between the embossing roller and the driving roller; a traction cooling roller set is arranged on the side, away from the rack, of the knurling roller assembly. According to the utility model, high-efficiency, high-quality and low-cost production of the photovoltaic adhesive film is realized.

Description

Technical Field

[0001] This utility model relates to the field of coating processing technology, and in particular to a novel coating device for producing photovoltaic films. Background Technology

[0002] The coating equipment for producing photovoltaic encapsulant film is generally divided into two main parts: embossing and cooling. Currently, the industry mostly uses the method of pressing the film with embossing rollers and silicone rollers. However, the embossing and setting time is short and the silicone rollers are easily worn and need to be replaced frequently, which affects the production quality and efficiency of photovoltaic encapsulant film.

[0003] Therefore, in order to solve the above problems, it is urgent to design a new type of coating device for producing photovoltaic encapsulant film, so as to achieve efficient, high-quality and low-cost production of photovoltaic encapsulant film. Utility Model Content

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0005] A novel coating apparatus for producing photovoltaic encapsulant film includes a conveyor belt machine, a mold, and an embossing roller assembly, characterized in that:

[0006] The mesh belt machine includes a frame and a metal woven mesh belt. A driven roller and a driving roller are respectively provided at the left and right ends of the frame. A driving roller driver for driving the driving roller to rotate is also provided on the frame.

[0007] The two ends of the metal woven mesh belt are respectively wound around the driven roller and the driving roller, and the surface of the metal woven mesh belt is provided with embossed patterns for forming embossing on one side of the photovoltaic film.

[0008] The mold is located above the left end of the frame and is used to extrude photovoltaic film.

[0009] The embossing roller assembly is located on the lower right side of the frame. The embossing roller assembly includes a connecting seat connected to the frame, an embossing roller rotatably connected to the connecting seat, and an embossing roller driver connected to the connecting seat and driving the embossing roller to move closer to or away from the drive roller.

[0010] An embossing channel is formed between the embossing roller and the drive roller;

[0011] A traction cooling roller assembly is provided on the side of the embossing roller assembly away from the frame.

[0012] Preferably, a transition roller is provided on the side of the active roller away from the embossing roller assembly. The transition roller is rotatably connected to the frame, and the photovoltaic film is connected to the traction cooling roller assembly after passing around the transition roller from the embossing channel.

[0013] Preferably, the metal woven mesh belt is made of interwoven metal wires, wherein the metal wires are one or a combination of steel wire, iron wire, or aluminum wire.

[0014] Preferably, the metal wire is a round wire or a flat wire.

[0015] Preferably, the embossed pattern is a straight line or a diagonal line.

[0016] Preferably, the surface of the metal wire is electroplated or sprayed.

[0017] Preferably, the embossed patterns on both sides of the photovoltaic film are the same or different.

[0018] Preferably, the driven roller is a hot roller and the driving roller is a cold roller.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. This utility model can realize the efficient, high-quality and low-cost production of photovoltaic films.

[0021] 2. Because the surface of the metal woven mesh belt is provided with embossing patterns for forming embossing on one side of the photovoltaic film, embossing on both sides of the film can be achieved by squeezing the embossing roller and the metal woven mesh belt.

[0022] 3. Embossing the photovoltaic film on a metal woven mesh belt can release residual gas from the film. Furthermore, after embossing, the photovoltaic film is placed on one end of the metal woven mesh belt for a period of time before being peeled off, which reduces the shrinkage rate of the film and thus improves the production quality of the photovoltaic film.

[0023] 4. By using a metal woven mesh belt instead of the existing rubber rollers for embossing, the losses caused by frequent replacements of silicone rollers due to wear are reduced, thereby improving production efficiency and reducing production costs. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model (bottom-mounted membrane method);

[0025] Figure 2 This is a schematic diagram of the structure of this utility model (top-mounted membrane method);

[0026] Figure 3 This is one of the embossed patterns of the metal woven mesh belt in this utility model;

[0027] Figure 4 This is the second embossed pattern of the metal woven mesh belt in this utility model;

[0028] The components include: mesh belt machine 1, mold 2, embossing roller assembly 3, traction cooling roller assembly 4, transition roller 5, frame 11, driven roller 12, driving roller 13, driving roller driver 14, metal woven mesh belt 15, connecting seat 31, embossing roller 32, embossing roller driver 33, and photovoltaic film 100. Detailed Implementation

[0029] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0030] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," "up," "down," "front," "back," and similar expressions used in this document are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0033] like Figure 1-4 As shown, a novel coating device for producing photovoltaic encapsulant film 100 includes a mesh belt machine 1, a mold 2, and an embossing roller assembly 3. The mesh belt machine 1 includes a frame 11 and a metal woven mesh belt 15. A driven roller 12 and a driving roller 13 are respectively provided at the left and right ends of the frame 11. A driving roller driver 14 for driving the driving roller 13 to rotate is also provided on the frame 11.

[0034] The two ends of the metal woven mesh belt 15 are respectively wound around the driven roller 12 and the driving roller 13. The surface of the metal woven mesh belt 15 is provided with embossed patterns (not shown in the figure) for forming embossing on one side of the photovoltaic film 100.

[0035] The mold 2 is located above the left end of the frame 11, and the mold 2 is used to extrude the photovoltaic film 100;

[0036] The embossing roller assembly 3 is located on the lower right side of the frame 11. The embossing roller assembly 3 includes a connecting seat 31 connected to the frame 11, an embossing roller 32 rotatably connected to the connecting seat 31, and an embossing roller driver 33 connected to the connecting seat 31 and driving the embossing roller 32 to move closer to or away from the active roller 13.

[0037] An embossing channel (not shown in the figure) is formed between the embossing roller 32 and the drive roller 13;

[0038] The embossing roller assembly 3 is provided with a traction cooling roller assembly 4 on the side away from the frame 11.

[0039] In this embodiment, after the molten photovoltaic film 100 is extruded from the mold 2 and applied to the metal woven mesh belt 15 of the mesh belt machine 1, the photovoltaic film 100 and the metal woven mesh belt 15 move together toward the embossing channel under the action of the traction cooling roller group 4 and the active roller driver 14. Then, the embossing roller 32, pushed by the embossing roller driver 33, squeezes the photovoltaic film 100 into the embossing channel, so that the photovoltaic film 100 performs embossing work in the embossing channel between the embossing roller 32 and the metal woven mesh belt 15. The embossed photovoltaic film 100 is then covered with the metal woven mesh belt 15 and transported together. Then, under the pull of the traction cooling roller group 4, the photovoltaic film is peeled off from the embossing roller 32 and the metal woven mesh belt 15, and finally cooled and formed by the traction cooling roller group 4.

[0040] In the above structure, since the surface of the metal woven mesh belt 15 is provided with embossing patterns for forming embossing on one side of the photovoltaic film 100, the embossing on both sides of the film is achieved by extruding the embossing roller 32 and the metal woven mesh belt 15.

[0041] In this embodiment, the photovoltaic encapsulant film 100 is embossed on the metal woven mesh belt 15 to release residual gas from the encapsulant film. Furthermore, after the photovoltaic encapsulant film 100 is embossed, it is covered on one end of the metal woven mesh belt 15 for a period of time before being peeled off, which reduces the shrinkage rate of the encapsulant film and thus improves the production quality of the photovoltaic encapsulant film 100.

[0042] In this embodiment, by using a metal woven mesh belt 15 instead of the existing rubber roller for embossing, the losses caused by frequent replacements due to wear of the silicone roller are reduced, thereby improving production efficiency and reducing production costs.

[0043] In this embodiment, the photovoltaic cornea can be fed on the mesh belt machine 1 in an upward or downward manner depending on the vertical position of the mold 2 and the embossing roller assembly 3.

[0044] In this embodiment, the traction cooling roller group 4 is used to cool the embossed photovoltaic film 100 before winding; the traction cooling roller group 4 is a conventional technology in the field, and its structure and working principle will not be described in detail here.

[0045] Furthermore, such as Figure 1 , 2As shown, in order to reduce the shrinkage rate and improve the production quality of the photovoltaic film 100 after embossing, a transition roller 5 is provided on the side of the active roller 13 away from the embossing roller assembly 3. The transition roller 5 is rotatably connected to the frame 11. The photovoltaic film 100 passes through the embossing channel, around the transition roller 5, and is connected to the traction cooling roller assembly 4.

[0046] Furthermore, in order to meet the production embossing needs of more photovoltaic films 100, the metal woven mesh belt 15 is made of interwoven metal wires, which are one or a combination of steel wire, iron wire or aluminum wire.

[0047] Furthermore, in order to meet the production embossing needs of more photovoltaic films 100, the metal wire is a round wire or a flat wire.

[0048] Furthermore, such as Figure 3 , 4 As shown, in order to produce photovoltaic films with different embossing effects, the embossing pattern is either straight or diagonal.

[0049] Furthermore, in order to improve the high temperature resistance and corrosion resistance of the metal woven mesh belt 15, the surface of the metal wire is electroplated or sprayed.

[0050] Furthermore, in order to produce photovoltaic films 100 with different embossed effects on both sides, the embossed patterns on both sides of the photovoltaic film 100 may be the same or different.

[0051] Furthermore, such as Figure 1 , 2 As shown, in order to avoid the high-temperature photovoltaic film 100 extruded from the mold 2 from cooling down rapidly and shrinking faster, thus affecting product quality, the driven roller 12 is a hot roller and the driving roller 13 is a cold roller.

[0052] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model patent.

Claims

1. A novel coating apparatus for producing photovoltaic encapsulant film, comprising a mesh belt machine, a mold, and an embossing roller assembly, characterized in that: The mesh belt machine includes a frame and a metal woven mesh belt. A driven roller and a driving roller are respectively provided at the left and right ends of the frame. A driving roller driver for driving the driving roller to rotate is also provided on the frame. The two ends of the metal woven mesh belt are respectively wound around the driven roller and the driving roller, and the surface of the metal woven mesh belt is provided with embossed patterns for forming embossing on one side of the photovoltaic film. The mold is located above the left end of the frame and is used to extrude photovoltaic film. The embossing roller assembly is located on the lower right side of the frame. The embossing roller assembly includes a connecting seat connected to the frame, an embossing roller rotatably connected to the connecting seat, and an embossing roller driver connected to the connecting seat and driving the embossing roller to move closer to or away from the drive roller. An embossing channel is formed between the embossing roller and the drive roller; A traction cooling roller assembly is provided on the side of the embossing roller assembly away from the frame.

2. The novel coating apparatus for producing photovoltaic encapsulant film according to claim 1, characterized in that, A transition roller is provided on the side of the active roller away from the embossing roller assembly. The transition roller is rotatably connected to the frame. The photovoltaic film passes through the embossing channel, around the transition roller, and is then connected to the traction cooling roller assembly.

3. The novel coating apparatus for producing photovoltaic encapsulant film according to claim 1, characterized in that, The metal woven mesh belt is made of interwoven metal wires, which are one or a combination of steel wire, iron wire, or aluminum wire.

4. A novel coating apparatus for producing photovoltaic encapsulant film according to claim 3, characterized in that, The metal wire is either round or flat.

5. A novel coating apparatus for producing photovoltaic encapsulant film according to claim 1, characterized in that, The embossed pattern is either straight or diagonal.

6. A novel coating apparatus for producing photovoltaic encapsulant film according to claim 3 or 4, characterized in that, The surface of the metal wire is electroplated or sprayed.

7. A novel coating apparatus for producing photovoltaic encapsulant film according to claim 1, characterized in that, The embossed patterns on both sides of the photovoltaic film may be the same or different.

8. A novel coating apparatus for producing photovoltaic encapsulant film according to claim 1, characterized in that, The driven roller is a hot roller, and the driving roller is a cold roller.

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