Polishing and printing integrated equipment for reflective slope of photovoltaic bus bar

Abstract

The utility model belongs to the technical field of photovoltaic modules, and particularly relates to photovoltaic bus bar reflective slope polishing and printing integrated equipment which comprises a rack, a frosted roller, a positioning transmission wheel and a gluing assembly are arranged on the rack, the gluing assembly comprises a rubber roller, an anilox roller and a trough, the rubber roller is arranged above the anilox roller, and the trough is arranged above the anilox roller. A material groove is arranged below the anilox roller, the lower portion of the anilox roller is immersed in the material groove, the rubber roller and the anilox roller are matched to coat the inclined face of the reflective bus bar passing through the portion between the rubber roller and the anilox roller with the high-light-transmittance adhesive film in a printing mode, and the high-light-transmittance protective film with the thickness ranging from 3 micrometers to 5 micrometers is formed after the high-light-transmittance adhesive film is cured. The photovoltaic bus bar reflective inclined plane polishing and printing integrated equipment can improve the production efficiency of reflective bus bars, can quickly finish polishing and protection of aluminum layer reflective planes, is combined with a front copper strip wrapping device, an inclined plane rolling device and the like to form an integrated production line, and greatly improves the manufacturing efficiency of efficient reflective bus bars.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic module technology, specifically relating to an integrated equipment for polishing and printing reflective inclined surfaces of photovoltaic busbars. Background Technology

[0002] In order to improve the defects of existing reflective busbars, our company has developed a high-efficiency reflective welding strip that can significantly reduce the material cost of busbars, improve light reflectivity, increase module power, solve the corrosion problem caused by the contact between aluminum and EVA and other materials, and stabilize the service life of photovoltaic modules. See utility model patent with publication number CN119789548A.

[0003] This high-efficiency reflective welding ribbon has a structure that differs from ordinary reflective welding ribbons. Therefore, existing equipment and manufacturing processes cannot meet the requirements for manufacturing this product, and it is necessary to develop and design special equipment for mass production. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide an integrated equipment for polishing and printing the reflective bevel surface of photovoltaic busbars. This integrated equipment for polishing and printing the reflective bevel surface of photovoltaic busbars can improve the production efficiency of reflective busbars, quickly complete the polishing and protection of the aluminum reflective surface, and, combined with pre-copper strip wrapping and bevel rolling devices, form an integrated production line, significantly improving the manufacturing efficiency of high-efficiency reflective busbars.

[0005] To achieve the above technical objectives, the technical solution adopted in this utility model embodiment is as follows:

[0006] An integrated equipment for polishing and printing reflective bevel surfaces of photovoltaic busbars includes a frame on which a sanding roller, a positioning transmission wheel, and an adhesive application assembly are mounted. The adhesive application assembly includes a rubber roller, an anilox roller, and a material trough. The rubber roller is positioned above the anilox roller, and the material trough is positioned below the anilox roller. The lower part of the anilox roller is immersed in the material trough. The rubber roller and the anilox roller work together to apply a high-transmittance adhesive film to the bevel surface of the reflective busbar passing between them by printing. After curing, the high-transmittance adhesive film forms a high-transmittance protective film with a thickness of 3-5 μm.

[0007] Furthermore, the surface of the anilox roller is provided with diamond-shaped mesh cells with a width of 4-12mm, the surface of the rubber roller is provided with triangular grooves, the inclined surface of the reflective busbar is fitted to the diamond-shaped mesh cells, and the right-angled surface of the reflective busbar is embedded in the triangular groove of the rubber roller.

[0008] Furthermore, a rotating handwheel is provided at both ends of the rubber roller and the anilox roller, and the rotating handwheel is used to adjust the relative position of the rubber roller and the anilox roller and the pressure between them;

[0009] The anilox roller is driven by a servo motor, which drives the anilox roller to rotate synchronously with the rubber roller; both the servo motor and the rotating handwheel are mounted on the frame.

[0010] Furthermore, the material trough is disposed on the material trough lifting frame, which is disposed on the machine frame. The material trough is capable of moving up and down relative to the anilox roller, and the material trough is used to provide adhesive to the anilox roller.

[0011] Furthermore, the surface of the anilox roller is provided with a comma-shaped scraper, which is used to scrape off excess glue, leaving only the glue inside the diamond-shaped mesh cells.

[0012] Furthermore, the abrasive roller is mounted on the frame, near the inlet end of the reflective busbar, and is used to mechanically polish the inclined surface of the reflective busbar.

[0013] Furthermore, the right-angled surface of the reflective busbar includes a first right-angled surface and a second right-angled surface that are vertically arranged, and both the first right-angled surface and the second right-angled surface are arranged to fit the triangular groove;

[0014] The first right-angled surface and the second right-angled surface are connected by the inclined plane, and the second right-angled surface and the inclined plane form an angle of θ, where 0° < θ < 45°.

[0015] Furthermore, the positioning transmission wheel includes a first positioning transmission wheel and a second positioning transmission wheel, used for positioning the reflective busbars entering and exiting the adhesive application assembly.

[0016] The beneficial effects of the technical solution provided by this utility model embodiment are:

[0017] 1. The polishing process of this utility model adopts the polishing technology of abrasive roller to mechanically polish the aluminum foil surface of the reflective busbar slope, remove burrs and improve surface smoothness, and ensure the adhesion of the protective coating.

[0018] 2. This utility model sets diamond-shaped holes on the surface of the anilox roller. The diamond-shaped holes are set on the inclined surface of the reflective busbar, and the other areas are not set with diamond-shaped holes. This can achieve precise positioning of the inclined surface of the reflective busbar and fully optimize the material utilization rate. The surface of the inclined surface of the reflective busbar with a specification of 4mm to 12mm is coated with a high-transmittance adhesive film by printing. The film thickness is 3-5μm. After curing treatment, a high-transmittance protective film is formed.

[0019] 3. The surface of the rubber roller is provided with triangular grooves. The right-angled surface of the reflective busbar is set to fit against the wall of the triangular groove, ensuring that the reflective busbar can be fully embedded in the triangular groove of the rubber roller, avoiding the deviation of the reflective busbar during high-speed movement. The pressure of the rubber roller surface can be evenly distributed on the inclined surface of the reflective busbar, fully optimizing the uniformity of the adhesive film coating on the printing inclined surface. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the photovoltaic busbar reflective inclined surface polishing and printing integrated equipment of this utility model.

[0021] Figure 2 for Figure 1 A schematic diagram of the contact surface between the printing roller and the rubber roller.

[0022] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure of the reflective busbar.

[0023] Explanation of reference numerals in the attached drawings: 1-Frame; 2-Rubber roller; 3-Anilox roller; 4-Frosted roller; 5-Servo motor; 6-Foot trough; 7-Foot trough lifting frame; 8-Comma scraper; 9-Rotating handwheel; 10-First positioning transmission wheel; 11-Second positioning transmission wheel; 12-Reflective busbar; 31-Rhombus-shaped mesh; 21-Triangular groove; 121-First right-angled surface; 122-Second right-angled surface; 123-Sloping surface of reflective busbar; 211-Left wall of triangular groove; 212-Right wall of triangular groove. Detailed Implementation

[0024] In the description of this utility model, it should be understood that the directional terms such as "inner" and "outer", "upper" and "lower", "left" and "right" indicate the orientation or positional relationship, which are usually based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this utility model.

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0026] Example 1

[0027] like Figure 1As shown, an integrated equipment for polishing and printing the reflective inclined surface of a photovoltaic busbar includes a frame 1. The frame 1 is equipped with a sanding roller 4, a positioning transmission wheel, and an adhesive application assembly. The adhesive application assembly includes a rubber roller 2, an anilox roller 3, and a material trough 6. The rubber roller 2 is positioned above the anilox roller 3, and the material trough 6 is positioned below the anilox roller 3. The lower part of the anilox roller 3 is immersed in the material trough 6. The rubber roller 2 and the anilox roller 3 work together to apply a high-transmittance adhesive film to the inclined surface 17 of the reflective busbar 12 passing between them by printing. After the high-transmittance adhesive film is cured, it forms a high-transmittance protective film with a thickness of 3-5μm.

[0028] like Figure 2 As shown, the surface of the anilox roller 3 is provided with diamond-shaped mesh 31 with a width of 4-12mm, the surface of the rubber roller 2 is provided with triangular grooves 21, the inclined surface 123 of the reflective busbar 12 is fitted to the diamond-shaped mesh 31, and the right-angled surface of the reflective busbar 12 is embedded in the triangular groove 21 of the rubber roller 2.

[0029] The rubber roller 2 and the anilox roller 3 are equipped with rotating handwheels 9 at both ends. The rotating handwheels 9 are used to adjust the relative position of the rubber roller 2 and the anilox roller 3 and the pressure between them.

[0030] The anilox roller 3 is driven by a servo motor 5, which drives the anilox roller 3 to rotate synchronously with the rubber roller 2; both the servo motor 5 and the rotating handwheel 9 are mounted on the frame 1.

[0031] Specifically, the threaded screw mechanism of the rotating handwheel 9 at both ends of the rubber roller 2 and the anilox roller 3 is connected to a spring. One end of the spring is fixed to the pressure plate, and the other end directly presses against the pressure pad. The pressure pad directly contacts the bearing seats of the rubber roller 2 and the anilox roller 3. Rotating the rotating handwheel 9 compresses or extends the spring, and the resulting elastic force acts perpendicularly on the pressure pad, pushing the pressure pad to move towards the roller or in the opposite direction, thereby adjusting the relative position of the rubber roller 2 and the anilox roller 3 and the pressure between them.

[0032] The material trough 6 is mounted on the material trough lifting frame 7, which is mounted on the machine frame 1. The material trough 6 can move up and down relative to the anilox roller 3. The material trough 6 is used to provide glue to the anilox roller 3.

[0033] The surface of the anilox roller 3 is provided with a comma scraper 8, which is used to scrape off excess glue, leaving only the glue in the diamond-shaped cells 31.

[0034] The abrasive roller 4 is mounted on the frame 1, near the inlet end of the reflective busbar 12, and is used to mechanically polish the inclined surface 123 of the reflective busbar 12.

[0035] like Figure 3As shown, the right-angled surface of the reflective busbar 12 includes a first right-angled surface 121 and a second right-angled surface 122 that are vertically arranged, and both the first right-angled surface 121 and the second right-angled surface 122 are arranged to fit the triangular groove 21.

[0036] The first right-angled surface 121 and the second right-angled surface 122 are connected by an inclined plane 123. The second right-angled surface 122 and the inclined plane 123 form an angle of θ, where 0° < θ < 45°.

[0037] The positioning drive wheel includes a first positioning drive wheel 10 and a second positioning drive wheel 11, which are used to position the reflective busbar 12 that enters and exits the adhesive application assembly.

[0038] The polishing and printing process of the aluminum layer on the inclined surface 123 of the reflective busbar 12 is as follows: The inclined surface 123 (aluminum foil surface) of the reflective busbar 12 is mechanically polished by the abrasive roller 4 to remove burrs and improve its surface smoothness, ensuring the adhesion of the reflective coating; after being polished by the abrasive roller 4, the reflective busbar 12 enters the gluing assembly under the positioning of the first positioning transmission wheel 11. The first right-angled surface 121 and the second right-angled surface 122 of the reflective busbar 12 are respectively attached to the left wall surface 211 and the right wall surface 212 of the triangular groove. 12 is fully embedded in the triangular groove 21 of the rubber roller 2. The reflective busbar 12 is transmitted between the rubber roller 2 and the anilox roller 3. The inclined surface 123 of the reflective busbar 12 is closely attached to the diamond-shaped mesh 31. The servo motor 5 drives the anilox roller 3 to rotate. The anilox roller 3 is partially immersed in the material trough 6 and rotates. The glue in the material trough 6 fills the diamond-shaped mesh 31 on the surface of the anilox roller 3. The comma scraper 8 is close to the surface of the anilox roller 3 and scrapes off the excess glue, leaving only the glue in the diamond-shaped mesh 31. The pressure of the comma scraper 8 needs to be precisely adjusted to avoid damaging the roller surface or leaving too much glue. The diamond-shaped mesh 31 of the anilox roller 3 is in contact with the inclined surface 123 of the reflective busbar 12. The rotating handwheels 9 on the left and right sides are rotated to compress the springs, ensuring that the pressure applied to the pressure pad by the springs on the left and right sides is the same. This makes the rubber roller 2 and the anilox roller 3 fit tightly together and generate corresponding pressure. The pressure of the rubber roller 2 transfers the glue in the diamond-shaped mesh 31 to the aluminum foil surface of the inclined surface 123 of the reflective busbar 12.

[0039] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An integrated equipment for polishing and printing reflective beveled surfaces of photovoltaic busbars, characterized in that, The machine includes a frame (1), on which a sanding roller (4), a positioning transmission wheel and a gluing assembly are provided. The gluing assembly includes a rubber roller (2), an anilox roller (3) and a material trough (6). The rubber roller (2) is provided above the anilox roller (3), and the material trough (6) is provided below the anilox roller (3). The lower part of the anilox roller (3) is immersed in the material trough (6). The rubber roller (2) and the anilox roller (3) cooperate to apply a high-transmittance adhesive film to the inclined surface (123) of the reflective busbar (12) between them by printing. After the high-transmittance adhesive film is cured, it forms a high-transmittance protective film with a thickness of 3-5μm.

2. The photovoltaic busbar reflective bevel polishing and printing integrated equipment according to claim 1, characterized in that, The surface of the anilox roller (3) is provided with diamond-shaped mesh holes (31) with a width of 4-12mm, the surface of the rubber roller (2) is provided with triangular grooves (21), the inclined surface (123) of the reflective busbar (12) is attached to the diamond-shaped mesh holes (31), and the right-angled surface of the reflective busbar (12) is embedded in the triangular groove (21) of the rubber roller (2).

3. The integrated equipment for polishing and printing reflective inclined surfaces of photovoltaic busbars according to claim 1, characterized in that, The rubber roller (2) and the anilox roller (3) are provided with rotating handwheels (9) at both ends. The rotating handwheels (9) are used to adjust the relative position of the rubber roller (2) and the anilox roller (3) and the pressure between them. The anilox roller (3) is driven by a servo motor (5), which drives the anilox roller (3) to rotate synchronously with the rubber roller (2); the servo motor (5) and the rotating handwheel (9) are both mounted on the frame (1).

4. The photovoltaic busbar reflective bevel polishing and printing integrated equipment according to claim 1, characterized in that, The material trough (6) is mounted on the material trough lifting frame (7), which is mounted on the frame (1). The material trough (6) can move up and down relative to the anilox roller (3). The material trough (6) is used to provide glue to the anilox roller (3).

5. The photovoltaic busbar reflective bevel polishing and printing integrated equipment according to claim 2, characterized in that, The surface of the anilox roller (3) is provided with a comma scraper (8), which is used to scrape off excess glue and retain only the glue in the diamond-shaped mesh (31).

6. The integrated equipment for polishing and printing reflective inclined surfaces of photovoltaic busbars according to claim 1, characterized in that, The abrasive roller (4) is mounted on the frame (1) and positioned near the inlet end of the reflective busbar (12) for mechanical polishing of the inclined surface (123) of the reflective busbar (12).

7. The photovoltaic busbar reflective bevel polishing and printing integrated equipment according to claim 2, characterized in that, The right-angled surface of the reflective busbar (12) includes a first right-angled surface (121) and a second right-angled surface (122) arranged vertically, and the first right-angled surface (121) and the second right-angled surface (122) are both attached to the triangular groove (21); The first right-angled surface (121) and the second right-angled surface (122) are connected by the inclined surface (123), and the second right-angled surface (122) and the inclined surface (123) form an angle of θ, where 0° < θ < 45°.

8. The photovoltaic busbar reflective bevel polishing and printing integrated equipment according to claim 1, characterized in that, The positioning drive wheel includes a first positioning drive wheel (10) and a second positioning drive wheel (11), which are used to position the reflective busbar (12) entering and exiting the adhesive assembly.

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