Automatic gluing and stretching device for photovoltaic frame

Abstract

The invention relates to the technical field of surface coating fluid equipment, in particular to an automatic gluing and stretching device for a photovoltaic frame. The device comprises a rack, a tension system, an automatic gluing system and jacking equipment, wherein the tension system realizes uniform tensioning of a silk screen through a longitudinal stretching module and a transverse stretching module; the automatic gluing system completes efficient gluing through a three-dimensional moving mechanism and a coating assembly and has a cleaning function. And the operation stability and accuracy are ensured through the jacking equipment. The device achieves the effects of improving the production efficiency, ensuring the product quality and reducing the labor cost.

Description

Technical Field

[0001] This application relates to the technical field of surface coating fluid equipment, and in particular to an automatic adhesive coating and mesh stretching device for photovoltaic frames. Background Technology

[0002] A screen stretching machine typically consists of a machine body, a tension system, a measuring instrument, and a control system. The machine body provides mechanical support to maintain the stability of the entire device. The tension system is driven by a motor and uses belts, gears, or other transmission mechanisms to evenly stretch the wire mesh. Modern screen stretching machines may employ pneumatic or electric tension adjustment systems for more precise control. The measuring instrument detects and displays the current tension value applied to the wire mesh, ensuring it meets set standards. The control system includes a microprocessor or other type of controller to automate the operation process and set parameters such as tension level and stretching speed. In practical applications, screen stretching machines equipped with glue application devices have also been developed. These devices can more effectively fix the wire mesh, automatically applying an appropriate amount of special glue to the edges of the wire mesh to achieve a firm bond between the mesh and the frame.

[0003] After the glue is applied, air bubbles are prone to form in the glued area. These air bubbles need to be scraped off. If the air bubbles are not removed, they will affect the tight bond between the screen and the frame, and will also cause defects in the subsequent printing process.

[0004] However, if the air bubbles are scraped off after coating multiple frames, some frames will not be scraped off in time, and some frames will have localized glue curing. This will result in air bubble residue after the glue has fully cured, leading to poor adhesion between the screen and the frame, which will affect the durability of the screen and the printing quality. Summary of the Invention

[0005] To improve the adhesion between the wire mesh and the frame and reduce air bubble residue, this application provides an automatic gluing and wire mesh stretching device for photovoltaic frames.

[0006] This application provides an automatic adhesive application and mesh stretching device for photovoltaic frames, which adopts the following technical solution: An automatic adhesive application and mesh stretching device for photovoltaic frames includes: The frame includes a mesh stretching platform, which is provided with a lifting opening; The tension system includes a transverse tensioning module and a longitudinal tensioning module. Two sets of transverse tensioning modules are arranged opposite each other on the frame, and two sets of longitudinal tensioning modules are also arranged opposite each other on the frame. Both the transverse tensioning module and the longitudinal tensioning module are used to tension the sides of the wire mesh. An automatic adhesive application system includes a three-dimensional moving mechanism and a coating assembly. The three-dimensional moving mechanism includes a moving base. The coating assembly includes a coating hanger, a coating roller and a flattening roller rotatably mounted on the coating hanger, with the coating roller and the flattening roller arranged in parallel. A steering component is provided on the moving base, and the steering component is connected to the coating hanger for driving the coating hanger to rotate. The coating roller is hollow and has a discharge hole, and a glue delivery pipe is also connected to the coating roller. A lifting device includes a lifting platform and a lifting mechanism. The lifting platform is located inside the lifting opening, and the lifting mechanism is used to drive the lifting platform to move up and down.

[0007] By adopting the above technical solutions, the frame provides stable mechanical support, ensuring the stability of the entire device during operation. The tension system includes longitudinal and transverse tension modules. After the wire mesh is laid flat on the tensioning table, the tension system can stretch the wire mesh comprehensively and evenly, ensuring its flatness and consistency. The three-dimensional moving mechanism within the automatic glue application system allows the coating components to apply glue precisely at any position, improving work efficiency. The steering component can flexibly adjust the angle of the coating hanger, enabling the coating roller and flattening roller to perform efficient glue application and flattening operations at different positions and angles. The design of the coating roller and flattening roller not only achieves uniform glue application but also allows the flattening roller to promptly remove air bubbles from the coating area after glue application, avoiding poor adhesion caused by residual air bubbles. The lifting equipment can precisely control the height of the lifting platform, facilitating the adjustment of the frame position so that the frame can be accurately raised to meet the wire mesh.

[0008] Optionally, the transverse stretching module includes a transverse slide, a first drive source, a first lifting source, and a transverse pressure bar. The transverse slide is slidably mounted on the frame. The first drive source is used to drive the transverse slide to slide. The first lifting source is fixed on the transverse slide and connected to the transverse pressure bar to drive the transverse pressure bar to slide in the vertical direction. The longitudinal stretching module includes a longitudinal slide, a second drive source, a second lifting source, and a longitudinal pressure bar. The longitudinal slide is slidably mounted on the frame. The second drive source is used to drive the longitudinal slide to slide. The second lifting source is fixed on the longitudinal slide and connected to the longitudinal pressure bar to drive the longitudinal pressure bar to slide in the vertical direction. The sliding direction of the transverse slide is perpendicular to that of the longitudinal slide.

[0009] By adopting the above technical solution, the transverse slide and the longitudinal slide are slidably mounted on the frame, allowing the transverse stretching module and the longitudinal stretching module to be adjusted independently in different directions, thereby achieving uniform stretching of the wire mesh in both the transverse and longitudinal directions. The first drive source and the second drive source drive the transverse slide and the longitudinal slide respectively, ensuring the smoothness and controllability of the stretching process. The first lifting source is connected to the transverse pressure bar, and controls the transverse pressure bar to press against or release the wire mesh by driving the lifting and lowering of the transverse pressure bar; the second lifting source and the longitudinal pressure bar have the same function, which is to control the longitudinal pressure bar to press against or release the wire mesh.

[0010] Optionally, the coating hanger includes a buffer bracket and a mounting bracket fixed to the bottom of the buffer bracket. The buffer bracket includes a top plate and a bottom plate. A guide rod is fixed to one side of the bottom plate. One end of the guide rod passes through the top plate and is slidably connected to the top plate. A buffer spring is sleeved on the guide rod. The coating roller and the flattening roller are both rotatably connected to the mounting bracket.

[0011] By adopting the above technical solution, the coating hanger includes a buffer bracket and a mounting bracket. The design of the buffer bracket enables the coating roller and the flattening roller to absorb a certain amount of impact and vibration during operation, thereby improving the uniformity and stability of the coating and effectively reducing the uneven coating caused by external factors. This improves the adhesion between the wire mesh and the frame and the reliability of the overall device.

[0012] Optionally, the coating roller is also connected to a cleaning tube.

[0013] By adopting the above technical solution, a cleaning tube is connected to the coating roller, which can quickly remove residual glue inside the coating roller and at the discharge hole after the glue is applied, thus preventing the glue from hardening after drying and affecting the subsequent glue application quality and equipment maintenance.

[0014] Optionally, a cleaning cylinder is provided inside the coating roller, and a plurality of cleaning nozzles are connected to the outer wall of the cleaning cylinder; The cleaning tube includes a rigid tube section and a flexible tube section that are connected to each other. The rigid tube section is fixed on the mounting bracket, and one end of the rigid tube section is coaxially inserted into the coating roller and connected to the cleaning cylinder. The rigid tube section is rotatably connected to the coating roller.

[0015] By adopting the above technical solution, the cleaning cylinder inside the coating roller and several cleaning nozzles on its outer wall can effectively remove residual glue and other impurities from the surface of the coating roller, preventing clogging and contamination caused by prolonged use, thereby ensuring the consistency and stability of the coating process. The design of the rigid and flexible sections of the cleaning tube allows the cleaning liquid to be smoothly delivered into the cleaning cylinder, and the rotating connection design between the rigid section and the coating roller does not hinder the normal operation of the coating roller. The rigid section is fixed on the mounting bracket, allowing the coating roller to rotate relative to the cleaning cylinder. When the cleaning liquid is introduced into the cleaning cylinder through the cleaning tube, rotating the coating roller can improve cleaning efficiency.

[0016] Optionally, the lifting plate is provided with multiple sets of positioning components. Each positioning component includes two positioning blocks arranged opposite to each other. Each positioning block includes a connecting part and an elastic clamping part. The elastic clamping part is provided with a clamping groove.

[0017] By adopting the above technical solution, the multiple positioning components on the lifting plate can effectively fix the frame. The clamping groove on the elastic clamping part ensures the reliability and fit of the frame clamping, ensures the stability of the glue application process, and avoids the problem of uneven glue application caused by frame position displacement.

[0018] Optionally, the connecting part is slidably connected to the lifting plate, and the positioning assembly further includes a locking member for locking the connecting part.

[0019] By adopting the above technical solution, the connecting part of the positioning component can slide on the lifting platform, allowing the position of the positioning block to be adjusted according to frames of different sizes, thereby improving the applicability of the device. The locking component can effectively fix the connecting part, preventing displacement during use, ensuring the stability of the frame position, and thus improving the accuracy and reliability of the adhesive application process.

[0020] Optionally, a guide groove is fixed on the lifting plate, and the connecting part is slidably disposed in the guide groove; An adjustment strip hole is provided on the side wall of the guide groove, and a slide rod is fixed on the connecting part. One end of the slide rod passes through the adjustment strip hole, and the locking member includes a locking nut threadedly connected to the slide rod.

[0021] By adopting the above technical solution, the guide groove allows the connecting part to slide smoothly within the guide groove, ensuring the stability of the positioning component at different positions. The design of the adjustment slot hole facilitates flexible adjustment of the slide rod on the connecting part, thereby adapting to frames of different sizes. The threaded nut connected to the slide rod effectively locks the position of the connecting part after adjustment, preventing displacement during operation.

[0022] Optionally, a curing unit is also included, which includes a fan and an air outlet pipe disposed on the coating hanger. The air outlet pipe is connected to the fan and has multiple air outlet nozzles connected to it.

[0023] By adopting the above technical solution, the curing unit can blow a uniform airflow to the adhesive application area through the fan and air outlet pipe, thereby accelerating the curing process of the adhesive.

[0024] Optionally, the coating hanger is also equipped with a cutting unit, which includes a lifting source and a cutting tool, the lifting source being used to drive the cutting tool to move up and down.

[0025] By adopting the above technical solution, the cutting unit set on the coating hanger can cut the wire mesh along the outer edge of each frame after the adhesive has cured, so as to obtain a single frame with wire mesh pasted on it.

[0026] In summary, this application includes at least one of the following beneficial effects: 1. The automatic glue application system in this application achieves uniform and precise glue application between the screen and the frame through the cooperation of the three-dimensional moving mechanism and the coating component, thereby improving the bonding strength between the screen and the frame and reducing quality fluctuations caused by human factors. 2. The design of the pressure roller in this application promptly eliminates air bubbles after gluing, ensuring the flatness of the gluing area, avoiding poor adhesion caused by residual air bubbles, and improving the overall quality of the screen and printing accuracy; 3. The design of the cleaning tube and the inner cleaning cylinder of the coating roller in this application can regularly clean the inside of the coating roller, prevent the accumulation of glue residue, ensure the long-term stable operation of the coating system, and reduce maintenance costs. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the automatic glue application and mesh stretching device for photovoltaic frames according to an embodiment of this application; Figure 2 This is a schematic diagram of the lifting device in the embodiments of this application; Figure 3 yes Figure 2 A magnified schematic diagram of the partial structure at point A in the middle; Figure 4 This is a schematic diagram of the coating hanger structure in an embodiment of this application; Figure 5 This is a cross-sectional view of the coating roller in an embodiment of this application; Explanation of reference numerals in the attached drawings: 1. Frame; 11. Tensioning platform; 111. Lifting port; 2. Tension system; 21. Lateral tensioning module; 211. Lateral slide; 212. First drive source; 213. First lifting source; 214. Lateral pressure bar; 215. First traction support; 216. First linkage bracket; 22. Longitudinal tensioning module; 221. Longitudinal slide; 222. Second drive source; 223. Second lifting source; 224. Longitudinal pressure bar; 225. Second traction support; 226. Second linkage bracket; 3. Three-dimensional moving mechanism; 31. Moving seat; 32. Z-axis track; 4. Coating assembly; 41. Coating hanger; 411. Buffer bracket; 4111. Top plate; 4112. Bottom plate; 4113. Guide rod; 4114. Buffer spring; 42. Mounting bracket; 421. Connecting pipe; 43. Coating roller; 431. Discharge hole; 44. Flattening roller; 45. Glue delivery pipe; 46. Cleaning pipe; 461. Rigid pipe section; 462. Flexible pipe section; 5. Lifting device; 51. Lifting carrier plate; 52. Guide groove; 521. Adjusting strip hole; 53. Lifting cylinder; 6. Cleaning cylinder; 61. Cleaning nozzle; 7. Positioning assembly; 71. Positioning block; 711. Connecting part; 712. Elastic clamping part; 7121. Clamping groove; 72. Slide rod; 73. Tightening nut; 8. Curing unit; 81. Fan; 82. Air outlet pipe; 83. Air outlet nozzle; 9. Cutting unit; 91. Lifting source; 92. Cutting blade; 10. Turning component. Detailed Implementation

[0028] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0029] Reference Figure 1 and Figure 2The photovoltaic frame automatic glue application and mesh stretching device provided in this application includes a frame 1, a tension system 2, an automatic glue application system, and a lifting device 5. The frame 1 includes a mesh stretching platform 11 fixed to the top, with a lifting opening 111 on the platform. In this embodiment, the mesh stretching platform 11 is specifically configured as a rectangular plate, and the lifting opening 111 is also rectangular. The tension system 2 includes a longitudinal stretching module 22 and a transverse stretching module 21. Two sets of longitudinal stretching modules 22 are arranged opposite each other on the frame 1, and two sets of transverse stretching modules 21 are also arranged opposite each other on the frame 1. The transverse stretching module 21 includes a transverse slide 211, a first drive source 212, a first lifting source 213, and a transverse pressure bar 214. The first driving source 212 is specifically configured as a first movable cylinder, which is fixed to the frame 1. A first traction support 215 is fixed to one end of the piston rod of the first movable cylinder, and the first traction support 215 is bolted to the transverse slide 211. In this embodiment, two first movable cylinders are specifically provided within one transverse stretching module 21, and two first traction supports 215 are also provided corresponding to the first movable cylinders. The first movable cylinders enable the transverse slide 211 to slide on the frame 1. In this embodiment, the first lifting source 213 is specifically selected as a first lifting cylinder; and multiple first lifting cylinders are fixed at intervals along the length of the transverse slide 211. A first linkage bracket 216 is fixed to one end of the piston rod of each first lifting cylinder, and one end of each first linkage bracket 216 is connected to the transverse pressure strip 214. The transverse pressure strip 214 is located on the tensioning table 11. Simultaneously activating each first lifting cylinder drives the transverse pressure strip 214 to slide vertically.

[0030] Reference Figure 1 The longitudinal stretching module 22 includes a longitudinal slide 221, a second drive source 222, a second lifting source 223, and a longitudinal pressure bar 224. The second drive source 222 is specifically configured as a second moving cylinder, which is fixed to the frame 1. One end of the piston rod of the second moving cylinder is fixed to a second traction support 225, which is bolted to the longitudinal slide 221. In this embodiment, two second moving cylinders are specifically provided within one longitudinal stretching module 22, and two second traction supports 225 are also provided corresponding to the second moving cylinders. The sliding connection of the longitudinal slide 221 on the frame 1 is achieved through the second moving cylinders. In this embodiment, the second lifting source 223 is specifically selected as a second lifting cylinder; and multiple second lifting cylinders are fixed at intervals along the length of the longitudinal slide 221. One end of the piston rod of each second lifting cylinder is fixed to a second linkage bracket 226, and one end of each second linkage bracket 226 is connected to the longitudinal pressure bar 224. The longitudinal pressure strip 224 is located on the tensioning table 11. Simultaneously activating each of the second lifting cylinders will drive the longitudinal pressure strip 224 to slide in the vertical direction.

[0031] Reference Figure 1 When tensioning the wire mesh, the first and second moving cylinders are first used to drive the transverse pressure bars 214 and longitudinal pressure bars 224 to move away from the lifting opening 111, and then the wire mesh is placed on the tensioning table 11. The first and second moving cylinders are then activated again to move the transverse pressure bars 214 and longitudinal pressure bars 224 closer to the lifting opening 111, so that the transverse pressure bars 214 and longitudinal pressure bars 224 are moved above the corresponding side of the wire mesh. Then, the first and second lifting cylinders are activated to drive the transverse pressure bars 214 and longitudinal pressure bars 224 to descend and press against the wire mesh. Finally, the first and second moving cylinders are activated to drive the transverse pressure bars 214 and longitudinal pressure bars 224 to move away from the lifting opening 111, so as to tension the wire mesh to the preset tension.

[0032] Reference Figure 1 and Figure 2 The lifting device 5 includes a lifting platform 51 and a lifting mechanism. The lifting platform is located inside the lifting opening 111, and the lifting mechanism is fixed below the frame 1. In this embodiment, the lifting mechanism includes a plurality of lifting cylinders 53 evenly distributed below the lifting platform 51. In this embodiment, the lifting mechanism includes four lifting cylinders 53, one end of the piston rod of the lifting cylinder 53 is fixedly connected to the lifting platform 51 to drive the lifting platform 51 to rise and fall.

[0033] Reference Figure 2 and Figure 3 To ensure the stability of the frame on the lifting platform 51, multiple sets of positioning components 7 are provided on the lifting platform 51. Each positioning component 7 includes two opposing positioning blocks 71. Each positioning block 71 includes a connecting part 711 and an elastic clamping part 712. The elastic clamping part 712 has a clamping groove 7121. The connecting part 711 is made of hard materials such as stainless steel or aluminum, while the elastic clamping part 712 is made of flexible materials such as rubber or silicone. Two guide grooves 52 are fixed on the lifting platform 51, and two sets of positioning components 7 are spaced apart within each guide groove 52. Each positioning block 71 has a connecting portion 711 that slides within its corresponding guide groove 52. The guide groove 52 has an adjustment slot 521 on its sidewall. A sliding rod 72 is fixed to the connecting portion 711, with one end of the sliding rod 72 passing through the adjustment slot 521. In this embodiment, sliding rods 72 are fixed to both sides of each connecting portion 711, and adjustment slots 521 are provided on both sides of the guide groove 52. The positioning assembly 7 also includes a locking element. A threaded section is machined onto the sliding rod 72, and the locking element includes a locking nut 73 threaded onto the sliding rod 72. The combination of the connecting portion 711 and the sliding rod 72 allows the positioning block 71 to slide freely within the guide groove 52, while the locking element fixes the positioning block 71 in the desired position, improving the applicability of the positioning assembly 7. The guide groove 52 can be made of aluminum alloy or stainless steel to ensure sufficient rigidity and durability.

[0034] Reference Figure 1 and Figure 4 The automatic adhesive application system mainly includes a three-dimensional moving mechanism 3 and a coating assembly 4. The three-dimensional moving mechanism 3 can adopt a gantry structure with an XYZ coordinate system. The moving seat 31 is slidably connected to the vertically arranged Z-axis track 32, and the moving seat 31 is moved in the Z direction by a motor screw assembly. The coating assembly 4 includes a coating hanger 41, a coating roller 43, and a flattening roller 44. The coating hanger 41 includes a buffer bracket 411 and a mounting bracket 42 fixed to the bottom of the buffer bracket 411. The buffer bracket 411 includes a top plate 4111 and a bottom plate 4112. Multiple guide rods 4113 are fixed on one side of the bottom plate 4112. One end of each guide rod 4113 passes through the top plate 4111 and is fixed with a limit block. The guide rods 4113 are slidably connected to the top plate 4111. Each guide rod 4113 is fitted with a buffer spring 4114. One end of the buffer spring 4114 is fixed to the top plate 4111, and the other end is fixed to the bottom plate 4112. A steering component 10 is fixed on the movable base 31. In this embodiment, the steering component 10 is specifically configured as a steering motor. One end of the output shaft of the steering motor passes through the movable base 31 and is fixedly connected to the top plate 4111, indirectly realizing the connection between the coating hanger 41 and the movable base 31. By starting the steering motor, the coating hanger 41 can be driven to rotate to different positions to meet different coating requirements. The buffer bracket 411 can absorb vibration and impact during the adhesive application process to prevent uneven adhesive application.

[0035] Reference Figure 4 and Figure 5 Both the coating roller 43 and the flattening roller 44 are rotatably connected to the mounting bracket 42. The coating roller 43 and the flattening roller 44 are arranged in parallel with a certain gap between them, and the gap size can be adjusted as needed. The surfaces of the coating roller 43 and the flattening roller 44 can be specially treated, such as chrome plating or Teflon spraying, to improve smoothness and anti-stick properties. The coating roller 43 is hollow, and a discharge hole 431 is provided on the outer wall of the coating roller 43. The diameter and number of discharge holes 431 can be adjusted according to the coating thickness requirements. The mounting bracket 42 includes a connecting pipe 421, one end of which is coaxially inserted into the coating roller 43 and rotatably connected to the coating roller 43. A glue supply pipe 45 is connected to the connecting pipe 421, which can introduce glue from an external glue supply system to ensure a continuous supply of glue to the coating roller 43.

[0036] Reference Figure 5A cleaning cylinder 6 is installed inside the coating roller 43. The cleaning cylinder 6 is specifically designed as a hollow cylinder, and multiple cleaning nozzles 61 are fixed on the outer wall of the cleaning cylinder 6, and the cleaning nozzles 61 are connected to the interior of the cleaning cylinder 6. The number and distribution of the cleaning nozzles 61 can be reasonably arranged according to the length and diameter of the coating roller 43 to ensure comprehensive coverage. A cleaning tube 46 is also connected to the coating roller 43. The cleaning tube 46 includes a rigid tube section 461 and a flexible tube section 462 that are connected to each other. The rigid tube section 461 is fixed to the mounting bracket 42. One end of the rigid tube section 461 is coaxially inserted into the coating roller 43 and connected to the cleaning cylinder 6. The rigid tube section 461 is fixedly connected to the cleaning cylinder 6 and rotatably connected to the coating roller 43. The main function of the cleaning tube 46 is to periodically clean the residual glue inside the coating roller 43 to prevent the glue from drying and affecting the effect of the next coating. The rigid tube section 461 can be made of stainless steel or copper to ensure corrosion resistance and long service life. The flexible tube section 462 can be made of PVC or silicone hose to accommodate the coating roller 43.

[0037] By adding a cleaning function to the coating roller 43, the service life of the coating system is further extended and the work efficiency is improved.

[0038] In other embodiments, the cleaning cylinder 6 and the cleaning nozzle 61 may not be provided.

[0039] Reference Figure 4 and Figure 5 It also includes a curing unit 8 and a cutting unit 9. (Refer to...) Figure 1 and Figure 5 The curing unit 8 includes a blower 81 and an air outlet duct 82. The air outlet duct 82 is fixed to the mounting bracket 42 and is located on the side of the flattening roller 44 away from the coating roller 43, and is parallel to the flattening roller 44. The air outlet duct 82 is connected to the blower 81 through a pipe, and multiple air outlet nozzles 83 are connected to the air outlet duct 82, which are spaced apart along the axial direction of the air outlet duct 82. The curing unit 8 can accelerate the drying process after adhesive application, shorten the waiting time, and improve production efficiency. The air outlet duct 82 can be made of stainless steel or plastic to ensure corrosion resistance and long service life. The number and distribution of the air outlet nozzles 83 are specifically arranged according to the size and shape of the adhesive application area to ensure complete coverage.

[0040] Reference Figure 4The cutting unit 9 includes a lifting source 91 and a cutting blade 92. The lifting source 91 is fixed to the top plate 4111 and is specifically configured as a cutting cylinder. One end of the piston rod of the cutting cylinder passes through the top plate 4111 and is fixedly connected to the cutting blade 92. The main function of the cutting unit 9 is to cut the wire mesh along the outer edge of each frame after the glue has cured to obtain individual screens. The cutting blade 92 can be made of sharp metal blades to ensure the cutting effect. The cutting edge of the cutting blade 92 can also be titanium-plated or nitrided to improve wear resistance and corrosion resistance.

[0041] The implementation principle of the automatic glue application and mesh stretching device for photovoltaic frames in this embodiment is as follows: The frame is installed on the lifting platform 51 via the positioning component 7, and then the wire mesh is laid flat on the stretching table 11. The tension system 2 stretches the sides of the wire mesh comprehensively and evenly to ensure the flatness and consistency of the wire mesh, and the wire mesh is tensioned to the preset tension. During the tensioning process, the tension of the wire mesh can be measured by a tension measuring instrument, and the tensioning system can be adjusted according to the measured value. After tensioning, the lifting platform is lifted by the lifting mechanism, which moves the frame to a position against the wire mesh. Subsequently, the three-dimensional moving mechanism 3 in the automatic glue application system enables the coating component 4 to apply glue precisely along the top surface of each frame in sequence. The design of the coating roller 43 and the flat roller not only achieves uniform application of glue, but also allows the flat roller 44 to remove air bubbles in the coating area in time after glue application, avoiding poor adhesion caused by air bubble residue. The curing unit 8 is started to accelerate the curing speed of the glue. After curing, the wire mesh is cut along the outer edge of each frame by the cutting and pasting unit to obtain individual screens.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic adhesive application and mesh stretching device for photovoltaic frames, characterized in that, include: The frame (1) includes a mesh stretching platform (11), which is provided with a lifting port (111). The tension system (2) includes a transverse tensioning module (21) and a longitudinal tensioning module (22). Two sets of transverse tensioning modules (21) are arranged opposite each other on the frame (1), and two sets of longitudinal tensioning modules (22) are also arranged opposite each other on the frame (1). Both the transverse tensioning module (21) and the longitudinal tensioning module (22) are used to tension the sides of the wire mesh. An automatic glue application system includes a three-dimensional moving mechanism (3) and a coating component (4). The three-dimensional moving mechanism (3) includes a moving base (31). The coating component (4) includes a coating hanger (41), a coating roller (43) rotatably mounted on the coating hanger (41), and a flattening roller (44). The coating roller (43) and the flattening roller (44) are arranged in parallel. A steering component (10) is provided on the moving base (31). The steering component (10) is connected to the coating hanger (41) and is used to drive the coating hanger (41) to rotate. The coating roller (43) is hollow and has a discharge hole (431). A glue delivery pipe (45) is also connected to the coating roller (43). The lifting device (5) includes a lifting plate (51) and a lifting mechanism. The lifting plate (51) is located inside the lifting port (111), and the lifting mechanism is used to drive the lifting plate (51) to rise and fall.

2. The automatic glue application and mesh stretching device for photovoltaic frames according to claim 1, characterized in that, The transverse stretching module (21) includes a transverse slide (211), a first drive source (212), a first lifting source (213), and a transverse pressure bar (214). The transverse slide (211) is slidably disposed on the frame (1). The first drive source (212) is used to drive the transverse slide (211) to slide. The first lifting source (213) is fixed on the transverse slide (211) and is connected to the transverse pressure bar (214) to drive the transverse pressure bar (214) to slide in the vertical direction. The longitudinal stretching module (22) includes a longitudinal slide (221), a second drive source (222), a second lifting source (223), and a longitudinal pressure bar (224). The longitudinal slide (221) is slidably mounted on the frame (1). The second drive source (222) is used to drive the longitudinal slide (221) to slide. The second lifting source (223) is fixed on the longitudinal slide (221) and connected to the longitudinal pressure bar (224) to drive the longitudinal pressure bar (224) to slide in the vertical direction. The sliding direction of the transverse slide (211) is perpendicular to that of the longitudinal slide (221).

3. The automatic glue application and mesh stretching device for a photovoltaic frame according to claim 2, characterized in that, The coating hanger (41) includes a buffer bracket (411) and a mounting bracket (42) fixed to the bottom of the buffer bracket (411). The buffer bracket (411) includes a top plate (4111) and a bottom plate (4112). A guide rod (4113) is fixed on one side of the bottom plate (4112). One end of the guide rod (4113) passes through the top plate (4111) and is slidably connected to the top plate (4111). A buffer spring (4114) is sleeved on the guide rod (4113). The coating roller (43) and the flattening roller (44) are both rotatably connected to the mounting bracket (42).

4. The automatic glue application and mesh stretching device for a photovoltaic frame according to claim 3, characterized in that, The coating roller (43) is also connected to a cleaning tube (46).

5. The automatic glue application and mesh stretching device for a photovoltaic frame according to claim 4, characterized in that, The coating roller (43) is provided with a cleaning cylinder (6), and a number of cleaning nozzles (61) are connected to the outer wall of the cleaning cylinder (6). The cleaning tube (46) includes a rigid tube section (461) and a flexible tube section (462) that are connected to each other. The rigid tube section (461) is fixed on the mounting bracket (42), and one end of the rigid tube section (461) is coaxially inserted into the coating roller (43) and connected to the cleaning cylinder (6). The rigid tube section (461) is rotatably connected to the coating roller (43).

6. The automatic glue application and mesh stretching device for photovoltaic frames according to claim 3, characterized in that, The lifting plate (51) is provided with multiple sets of positioning components (7). The positioning components (7) include two positioning blocks (71) arranged opposite to each other. The positioning blocks (71) include a connecting part (711) and an elastic clamping part (712). The elastic clamping part (712) is provided with a clamping groove (7121).

7. The automatic glue application and mesh stretching device for a photovoltaic frame according to claim 6, characterized in that, The connecting part (711) is slidably connected to the lifting plate (51), and the positioning assembly (7) further includes a locking member for locking the connecting part (711).

8. The automatic glue application and mesh stretching device for a photovoltaic frame according to claim 7, characterized in that, A guide groove (52) is fixed on the lifting plate (51), and the connecting part (711) is slidably disposed in the guide groove (52); The guide groove (52) has an adjustment bar hole (521) on its side wall. A slide rod (72) is fixed on the connecting part (711). One end of the slide rod (72) passes through the adjustment bar hole (521). The locking member includes a locking nut (73) threaded onto the slide rod (72).

9. The automatic glue application and mesh stretching device for a photovoltaic frame according to claim 3, characterized in that, It also includes a curing unit (8), which includes a fan (81) and an air outlet pipe (82) disposed on the coating hanger (41). The air outlet pipe (82) is connected to the fan (81), and multiple air outlet nozzles (83) are connected to the air outlet pipe (82).

10. The automatic glue application and mesh stretching device for a photovoltaic frame according to claim 3, characterized in that, The coating hanger (41) is also provided with a cutting unit (9), which includes a lifting source (91) and a cutting tool (92). The lifting source (91) is used to drive the cutting tool (92) to rise and fall.

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