Device for automatically leveling and arching adhesive film

Abstract

The utility model belongs to the technical field of photovoltaic module production, and particularly discloses an automatic adhesive film leveling and arching device which is arranged on a conveying platform and comprises racks located on the two sides of the advancing direction of the conveying platform, and bearing seats are connected to the tops of the racks. A smoothing roller stretching across the conveying platform is rotationally connected between two bearing seats symmetrically arranged on the two sides of the conveying platform, the smoothing roller comprises a roller shaft and a plurality of roller wheels axially and fixedly connected to the roller shaft at intervals, the outer roller surfaces of the roller wheels are made of flexible materials, and the roller wheels further comprise annular air bags located on the inner circumferential sides of the outer roller surfaces and used for supporting the outer roller surfaces. The annular air bags in the rollers are communicated with one another, and one end of each roller shaft is connected with an air pump through an air inlet pipe; when the laminated piece moves to the position below the smoothing roller along with the conveying platform, the roller is in rolling contact with a glue film on the laminated piece, and bubbles in the glue film are smoothed. The device almost does not need to consume electric power cost, does not need to be manually intervened in leveling, and automatically rotates to finish exhausting in the circulation process of the assembly laminated piece so as to compact the whole laminated piece.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic component production, and in particular relates to an automatic flattening and arching device for an adhesive film. Background Art

[0002] At present, there are two main factors that cause the film to bulge after lamination of photovoltaic laminates. On the one hand, improper control of the temperature, pressure and vacuum degree of the laminates may cause excessive flow or shrinkage of the film during the lamination process, thereby causing bulging; on the other hand, the film and the glass are not completely bonded during the laying process, which leads to the phenomenon of film bulging after lamination.

[0003] The problem of film arching can cause component degradation at the very least, and can even cause battery cell breakage and battery string scrapping, seriously affecting product quality and causing a waste of manpower, material resources and costs.

[0004] In the prior art, the problem of film bulging is usually solved by manual intervention and flattening or by adding electric ironing equipment. However, manual flattening will increase labor costs, and using electric ironing equipment to perform four-corner electric ironing will consume a lot of electricity, thereby increasing costs. Whether manual intervention or using electric ironing equipment will cause poor production line flow and seriously affect production rhythm.

[0005] In view of this, it is necessary to design an automatic flattening film arching device to solve the above problems. Utility Model Content

[0006] The utility model aims to provide an automatic flattening and arching device for a rubber film, so as to solve the above-mentioned technical problems existing in the prior art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following scheme: an automatic flattening and arching device for rubber film, which is arranged on a conveying platform, including a frame located on both sides of the conveying platform in the direction of travel, a bearing seat is connected to the top of the frame, and a smoothing roller spanning the conveying platform is rotatably connected between two bearing seats symmetrically arranged on both sides of the conveying platform, the smoothing roller includes a roller shaft and a plurality of rollers fixed to the roller shaft at axial intervals, the outer roller surface of the roller is a flexible material, and the roller also includes an annular airbag located on the inner circumference of the outer roller surface for propping up the outer roller surface, the annular airbags in each of the rollers are connected to each other and connected to one end of the roller shaft through an air inlet pipe to connect to an air pump; when the laminate moves with the conveying platform to the bottom of the smoothing roller, the roller comes into rolling contact with the rubber film on the laminate to smooth out the bubbles in the rubber film.

[0008] As a preferred implementation, a height adjustment assembly is provided on the top of the frame, and the bearing seat is fixedly connected to the top of the height adjustment assembly.

[0009] As a preferred embodiment, the height adjustment assembly includes a stud fixed to the top of the frame, a spring sleeved outside the stud, a lifting base supported above the spring, and an adjusting nut for adjusting the height of the lifting base, the spring sleeved outside the stud between the lifting base and the frame, one end of the spring abuts against the upper surface of the frame, and the other end abuts against the lower surface of the lifting base, the top end of the stud passes through the top of the lifting base and is threadedly connected to the adjusting nut.

[0010] As a preferred embodiment, two smoothing rollers are provided, and the two smoothing rollers are spaced apart along the traveling direction of the conveying platform and have the same distance from the conveying platform.

[0011] As a preferred embodiment, the rollers on the two smoothing rollers are staggered along the axial direction of the roller shaft.

[0012] As a preferred embodiment, the air pump includes two air outlets, and the two air outlets are connected to the two smoothing rollers through air inlet pipes respectively.

[0013] As a preferred implementation, valves are respectively provided at the two air outlets.

[0014] As a preferred implementation, the two air inlet pipes are respectively connected with a gas flow meter.

[0015] As a preferred implementation, a pressure sensor is provided in any one of the annular airbags.

[0016] As a preferred embodiment, the annular airbags in each of the rollers are connected to the bearing seat on one side, and the bearing seat is connected to the air pump through an air inlet pipe.

[0017] The utility model discloses the following technical effects:

[0018] The utility model device automatically stops rotating when the component flows out of the conveying platform of the process, and automatically starts working when the next component enters. There is no need to provide rotational power. After the air pump completes the inflation of the preset air pressure, it can be maintained. Almost no electricity cost is required, and no human intervention is required to level it. During the flow of the component laminate, it automatically rotates to complete the exhaust, compact the entire laminate, smooth the arched position, reduce the air between the film and the glass, and make the film and the glass fit completely. After the component laminate is smoothed by this device, it fits tightly without residual air, and the effect is obvious. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a front view of an embodiment of the utility model;

[0021] Figure 2 A top view of an embodiment of the utility model;

[0022] Figure 3 It is a right side view of an embodiment of the utility model;

[0023] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0024] Figure 5 It is a three-dimensional structural diagram of an embodiment of the utility model;

[0025] Figure 6 It is a partial enlarged view of an embodiment of the utility model;

[0026] In the figure: 1. Conveying platform; 2. First smoothing roller; 3. Second smoothing roller; 4. Lifting base; 5. Air pump; 6. Frame; 7. Air pump mounting platform; 8. Roller; 9. Spring; 10. Stud; 11. Adjusting nut; 12. Bearing seat; 13. Inlet pipe two; 14. Valve two; 15. Inlet pipe one; 16. Valve one. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] Reference Figures 1 to 6As shown, the utility model provides an automatic device for leveling an arched adhesive film, comprising at least one smoothing roller arranged above a conveying platform, the smoothing roller spanning across the conveying platform and being perpendicular to the moving direction of the conveying platform, the interval between the smoothing roller and the conveying platform can accommodate the passage of component laminates, the smoothing roller is rotatably connected to the frame through a bearing seat, and no power drive is required, when the component laminates move forward with the conveying platform, the smoothing roller rolls from the component laminates to smooth the adhesive film, and squeezes out the gas between the adhesive film and the glass, thereby achieving the smoothing of the laminates.

[0030] Specifically, the conveying platform is used to lay the component laminates flat and keep them running uninterruptedly in one direction. The glass surface of the component laminates is placed on the conveying platform with the adhesive film on the upper layer. As an existing tooling equipment of the component production line, the conveying platform does not need to be customized separately and the conventional conveying platform of the existing production line can be used.

[0031] Racks with a height close to that of the conveying platform are provided on both sides of the conveying platform in the direction of travel. The racks are specifically four vertical channel steels, which are located on both sides of the conveying platform in pairs. A lifting base is connected to the tops of the two channel steels on the same side of the conveying platform. A bearing seat is fixed above the lifting base. The bearing seats on both sides of the conveying platform are arranged corresponding to each other, and the two ends of the smoothing roller rotate in the two bearing seats.

[0032] In this embodiment, the smoothing roller includes a roller shaft and a plurality of rollers fixed on the roller shaft at axial intervals. The outer roller surface of the roller is made of flexible material. The roller also includes an annular airbag located on the inner circumference of the outer roller surface for supporting the outer roller surface. The annular airbags in each roller are interconnected and connected to one end of the roller shaft through an air inlet pipe to connect to an air pump. When the laminate moves to the bottom of the smoothing roller along with the conveying platform, the rollers roll in contact with the film on the laminate to smooth out the bubbles in the film.

[0033] Compared with an integrated roller surface, setting up multiple independent rollers is more conducive to the discharge of gas in the film, and the outer roller surface of each roller is made of flexible material, which can adapt to different positions of the component laminates individually, forming a flexible fit with the upper surface of the laminates, so that the gas in the film will not be unable to be discharged due to the influence of battery cells and welding strips.

[0034] In this embodiment, two bearing seats are fixed above each lifting base. Therefore, two smoothing rollers are also provided, namely the first smoothing roller and the second smoothing roller. The first smoothing roller and the second smoothing roller are arranged at a small distance along the moving direction of the conveying platform, and the distance between the first smoothing roller and the second smoothing roller and the conveying platform is consistent.

[0035] According to a further optimization scheme, the rollers on the two first smoothing rollers and the second smoothing rollers are staggered along the axial direction of the roller shaft, so that the rollers on the second smoothing roller just cover the gap between the two adjacent rollers on the first smoothing roller, and then the two smoothing rollers can cooperate to cover the entire upper surface of the laminate.

[0036] According to a further optimization scheme, the air pump comprises two air outlets, and the two air outlets are respectively connected to the two smoothing rollers through air inlet pipes. Specifically, air inlet pipe 1 connects the air pump and the first smoothing roller, and air inlet pipe 2 connects the air pump and the second smoothing roller.

[0037] According to a further optimization scheme, valve one and valve two are respectively provided at the two air outlets. It should be understood that valve one and valve two can be manual valves or electronic valves.

[0038] To further optimize the solution, gas flow meters are connected to the intake pipe one and the intake pipe two respectively.

[0039] According to a further optimization scheme, a pressure sensor is provided in any one of the annular airbags.

[0040] According to a further optimized solution, the annular airbags in each roller are connected to a bearing seat on one side, and the bearing seat is connected to an air pump through an air inlet pipe.

[0041] A further optimization scheme is provided in which the lifting base and the frame are elastically connected to achieve height adjustment. Specifically, a stud is fixed to the top of the frame, the upper half of the stud is provided with an external thread, the lower half of the stud is sleeved with a spring, and an adjustment hole is opened on the lifting base to accommodate the stud to pass freely. The lifting base is supported above the spring and is fastened to the upper ends of the two studs by adjusting nuts. The above structure is combined into a height adjustment assembly.

[0042] The height adjustment assembly includes the above-mentioned stud, spring, lifting base, and an adjusting nut for adjusting the height of the lifting base. The spring is sleeved outside the stud between the lifting base and the frame, one end of the spring abuts against the upper surface of the frame, and the other end abuts against the lower surface of the lifting base. The top end of the stud passes through the top of the lifting base and is threadedly connected to the adjusting nut. The height adjustment of the lifting base can be achieved by rotating the adjusting nut.

[0043] The above-mentioned embodiment provides a structure of a height adjustment component. It should be understood that in actual applications, the height adjustment component can also be other driving structures or mechanical devices that can realize linear motion function / telescopic motion. For example, it can be a pneumatic cylinder, a hydraulic cylinder, an electric cylinder, etc.

[0044] In some embodiments, the height of the frame is 120 cm, the length of the first smoothing roller and the second smoothing roller is 280 cm, the diameter of the roller is 9 cm, and the length of the first smoothing roller and the second smoothing roller can meet the long side of the assembly laminate of conventional model size.

[0045] In some embodiments, the outer surface of the roller is a double-layer composite of PVC material, emulsion polystyrene butadiene rubber, butyl rubber BR and styrene butadiene rubber SBR, or other flexible materials with good elasticity and wear resistance, which are not further specifically limited here.

[0046] In some embodiments, the first smoothing roller is provided with 16 rollers, and the second smoothing roller is provided with 17 rollers. The rollers on the first smoothing roller and the second smoothing roller are arranged in an alternating manner to form an inserted seam arrangement. The two smoothing rollers can cooperate to cover the entire upper surface of the laminate.

[0047] The parts not described in detail in the present invention are all conventional technical means known to those skilled in the art.

[0048] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0049] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. An automatic flattening and arching device for a film, arranged on a conveying platform, characterized in that: The invention comprises a frame located on both sides of the conveying platform in the direction of travel, a bearing seat is connected to the top of the frame, a smoothing roller spanning the conveying platform is rotatably connected between two bearing seats symmetrically arranged on both sides of the conveying platform, the smoothing roller comprises a roller shaft and a plurality of rollers fixed on the roller shaft at axial intervals, the outer roller surface of the roller is a flexible material, the roller also comprises an annular airbag located on the inner circumference of the outer roller surface for supporting the outer roller surface, the annular airbags in each of the rollers are interconnected and connected to one end of the roller shaft through an air inlet pipe to connect to an air pump; when the laminate moves with the conveying platform to the bottom of the smoothing roller, the roller comes into rolling contact with the film on the laminate to smooth out the bubbles in the film.

2. The automatic flattening film arching device according to claim 1, characterized in that: A height adjustment component is provided on the top of the frame, and the bearing seat is fixedly connected to the top of the height adjustment component.

3. The automatic flattening film arching device according to claim 2, characterized in that: The height adjustment assembly includes a stud fixed to the top of the frame, a spring sleeved on the outside of the stud, a lifting base supported above the spring, and an adjusting nut for adjusting the height of the lifting base. The spring is sleeved on the outside of the stud between the lifting base and the frame, one end of the spring abuts against the upper surface of the frame, and the other end abuts against the lower surface of the lifting base. The top end of the stud passes through the top of the lifting base and is threadedly connected to the adjusting nut.

4. The automatic flattening film arching device according to claim 1, 2 or 3, characterized in that: There are two smoothing rollers, which are spaced apart along the traveling direction of the conveying platform and have the same distance from the conveying platform.

5. The automatic flattening and arching device for the adhesive film according to claim 4, characterized in that: The rollers on the two smoothing rollers are arranged in an axially staggered manner along the roller shaft.

6. The automatic flattening and arching device for the adhesive film according to claim 4, characterized in that: The air pump comprises two air outlets, and the two air outlets are respectively connected to the two smoothing rollers through air inlet pipes.

7. The automatic flattening and arching device for adhesive film according to claim 6, characterized in that: The two air outlets are respectively provided with valves.

8. The automatic flattening and arching device for adhesive film according to claim 6, characterized in that: The two air inlet pipes are respectively connected with a gas flow meter.

9. The automatic flattening and arching device for adhesive film according to claim 1, characterized in that: A pressure sensor is arranged in any one of the annular airbags.

10. The automatic flattening and arching device for adhesive film according to claim 1, characterized in that: The annular airbags in each of the rollers are connected to the bearing seat on one side, and the bearing seat is connected to the air pump through an air inlet pipe.

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