A heating device for a knotless solar panel and a process for removing damaged PI film

Abstract

The present application relates to a heating device for a knotless solar panel and a process for removing damaged PI film, including a base, a heating plate and a positioning rod. The end face of the positioning rod is used to abut against the end face of the mesh frame. A transmission component is arranged between the heating plate and the positioning rod, and the transmission component is used to receive the power of the positioning rod and drive the heating plate to slide. In the present application, due to the arrangement of the transmission component and the positioning rod, the end face of the PI film is uniformly heated by the heating plate, so that the PI film adhered to the panel is softened by heating, thus facilitating the staff to clean the softened PI film on the panel; the arrangement of the fixing block, the travel switch and the controller accurately controls the heating time of the heating plate for the PI film, without the need for the staff to externally place a timer to control the heating time of the heating plate for the panel, thereby improving the processing efficiency of the panel and shortening the processing cost of the panel; the arrangement of the rotating plate and the heat preservation component makes the end face of the panel far from the heating plate not easily dissipate too much heat, thereby accelerating the heating speed of the panel and shortening the softening time of the PI film.

Description

Technical Field

[0001] The present application relates to the field of screen plate processing, and in particular to a heating device for a knotless solar screen plate and a process for removing damaged PI film. Background Art

[0002] A screen plate is composed of wire meshes of different mesh sizes woven from stainless steel, latex coated on the wire meshes, and a mesh frame for accommodating the wire meshes. The screen plate is mainly applied to the printing of the positive and negative electrodes on a solar panel; a specific pattern is cut out in the middle of the wire mesh by using laser cutting technology, and then fixed on a printing machine through the mesh frame. The lower part of the mesh frame is the solar panel, and an appropriate amount of tin liquid is poured into the top of the mesh frame. Workers scrape the tin liquid with a scraper to drive the tin liquid to flow from the specific pattern area on the wire mesh to the solar panel, thereby realizing printing.

[0003] During the printing process, in order to reduce the flow of the tin liquid from the non-pattern area on the wire mesh, photosensitive glue is usually applied to the non-pattern area of the metal wire mesh. After the photosensitive glue is cured, the gaps in the non-pattern area of the metal wire mesh are blocked, and then a PI film is adhered to the surface of the non-pattern area of the metal wire mesh to block the tin liquid through the PI film.

[0004] When the PI film on the screen plate is damaged, workers usually use a heating plate to heat the screen plate until the PI film softens, and the adhesion effect between the PI film and the wire mesh is reduced. Workers slowly detach the PI film from the wire mesh. If the PI film on the wire mesh is not cleaned up completely, the metal screen plate will be scrapped.

[0005] Regarding the above related technology, the inventor believes that when workers use a heating plate to heat the metal screen plate, it is not easy for workers to directly observe whether the heating end face of the heating plate is completely attached to the wire mesh. It is not easy for the heating end face of the heating plate to be completely attached to the end face of the wire mesh, making it difficult for the end face of the wire mesh to be evenly heated. As a result, it is not easy for workers to completely clean the PI film on the metal screen plate, resulting in low quality of the products printed on the metal screen plate. Summary of the Invention

[0006] In order to improve the problem of the fitting between the heating end face of the heating plate and the end face of the wire mesh, the present application provides a heating device for a knotless solar screen plate and a process for removing damaged PI film.

[0007] In a first aspect, a heating device for a knotless solar screen plate provided by the present application adopts the following technical solution:

[0008] A heating device for a knotless solar panel, comprising a base, a heating plate slidably arranged on the base, and a positioning rod slidably arranged on the base. The positioning rod is located on one side of the base close to the heating plate. The sliding direction of the heating plate is towards or away from the base. The sliding direction of the heating plate and the sliding direction of the positioning rod are parallel to each other. The end face of the positioning rod is used to abut against the end face of the net frame. A transmission assembly is arranged between the heating plate and the positioning rod. The transmission assembly is used to receive the power of the positioning rod and drive the heating plate to slide. When the end face of the net frame abuts against the end face of the positioning rod and drives the positioning rod to slide towards the base, the transmission assembly drives the heating plate to slide away from the base until the end face of the heating plate abuts tightly against the end face of the net yarn.

[0009] By adopting the above technical solution, when the PI film on the panel is damaged, the staff places the panel on the base, with the end face of the net yarn with the PI film facing the heating plate. The end face of the net frame abuts against the end face of the positioning rod and drives the positioning rod to slide towards the base. The transmission assembly receives the power of the positioning rod and drives the heating plate to slide away from the base until the end face of the heating plate abuts tightly against the end face of the PI film. The heating plate evenly heats the end face of the PI film, softening the PI film adhered to the panel, so that it is convenient for the staff to clean the softened PI film on the panel, making the PI film not easily remain on the panel. A new PI film is replaced and adhered to the panel to realize the reuse of the panel, thus improving the service life of the panel.

[0010] Optionally, the transmission assembly includes a first rack, a second rack and a first transmission member. The first rack is fixed to the bottom of the positioning rod away from the heating plate. The second rack is fixed to the bottom of the heating plate. The first transmission member is located between the first rack and the second rack. The first transmission member is used to receive the power of the first rack and drive the second rack to slide. The first transmission member includes a first gear, a second gear, two first synchronous pulleys and a first synchronous belt used in cooperation with the first synchronous pulleys. The first gear and the second gear are rotatably arranged on the base. One of the first synchronous pulleys is coaxially fixed to the first gear, and the other first synchronous pulley is coaxially fixed to the second gear. The first rack meshes with the first gear, and the second rack meshes with the second gear. When the end face of the net frame abuts against the positioning rod and drives the first rack to slide towards the base, the first gear rotates and drives the second gear to rotate, driving the second rack meshing with the second gear to slide away from the base until the end face of the heating plate abuts tightly against the end face of the net yarn.

[0011] By adopting the above technical solution, when the screen plate is placed on the base, the end face of the screen frame abuts against the end face of the positioning rod and drives the first rack to slide towards the base. The first gear meshing with the first rack rotates. The first synchronous pulley coaxially fixed on the first gear drives the first synchronous pulley fixed on the second gear through the first synchronous belt, thereby driving the second gear to rotate and driving the second rack to slide away from the base until the end face of the heating plate abuts against the end face of the screen yarn, so that the PI film on the screen plate is uniformly heated and softened, which is convenient for the staff to clean the PI film on the screen plate and makes the PI film not easy to remain on the end face of the screen plate. At the same time, the first synchronous belt is tensioned to connect the two first synchronous pulleys, thereby improving the transmission stability of the first gear and the second gear.

[0012] Optionally, a fixing block is arranged on the end face of the positioning rod facing the base, the end face of the fixing block abuts against the outer wall of the base, a travel switch is arranged on the outer wall of the base facing the positioning rod, the travel switch is electrically connected to a controller. When the positioning rod slides towards the base until the end face of the fixing block abuts against the travel switch, the end face of the heating plate abuts against the end face of the screen yarn. The travel switch converts the signal into an electrical signal and transmits it to the controller, and the controller starts timing the heating time of the screen yarn.

[0013] By adopting the above technical solution, the staff places the screen plate on the base, the end face of the screen frame abuts against the end face of the positioning rod and drives the positioning rod to slide towards the base. When the end face of the fixing block abuts against the travel switch, the end face of the heating plate abuts against the end face of the screen yarn. The heating plate uniformly heats the PI film on the screen yarn. At the same time, the travel switch converts the signal into an electrical signal and sends it to the controller, and the controller starts timing the heating time of the screen yarn, accurately controlling the heating time of the heating plate for the PI film, without the need for the staff to externally place a timer to control the heating time of the heating plate for the screen plate, thereby improving the processing efficiency of the screen plate and shortening the processing cost of the screen plate.

[0014] Optionally, a butting ring is arranged on the outer wall of the circumference of the base, and the outer wall of the butting ring is used to abut against the inner circumferential wall of the screen frame.

[0015] By adopting the above technical solution, when the screen plate is placed on the base, the outer wall of the butting ring abuts against the inner circumferential wall of the king frame, so that the screen plate is not easy to shift on the base, thereby improving the butting stability between the heating plate and the screen yarn.

[0016] Optionally, the butting ring is a thermal expansion and contraction ring.

[0017] By adopting the above technical solution, when the heating plate uniformly heats the screen plate, the heating plate transfers part of the internal energy to the thermal expansion and contraction ring by heat conduction. The thermal expansion and contraction ring deforms due to heat, thereby increasing the butting force between the outer wall of the thermal expansion and contraction block and the inner circumferential wall of the screen frame, and further improving the connection stability between the screen plate and the base.

[0018] Optionally, it further includes a heat preservation component, which includes a rotating plate rotatably connected to the base and a heat preservation member fixed on the rotating plate. The rotating direction of the rotating plate is towards or away from the heating plate. When the rotating plate rotates towards the heating plate, the heat preservation member rotates towards the heating plate until the end face of the heat preservation member abuts against the end face of the wire mesh.

[0019] By adopting the above technical solution, when the heating plate uniformly heats the end face of the mesh plate, the worker drives the rotating plate to rotate towards the heating plate until the end face of the heat preservation member abuts against the end face of the wire mesh. The heat preservation member insulates the mesh plate, so that the end face of the mesh plate away from the heating plate is not prone to excessive heat dissipation, thereby accelerating the heating speed of the mesh plate, shortening the softening time of the PI film, improving the processing efficiency of the mesh plate, and reducing the processing cost of the mesh plate.

[0020] Optionally, a rotating component for driving the rotating plate to rotate is arranged on the base. The rotating component includes a third rack and a second transmission member. The third rack is slidably connected to the base, and the sliding direction of the third rack is towards or away from the base. The third rack is located between the rotation axis of the rotating plate and the heating plate. A first fixing bar is connected between the third rack and the rotating plate. The second transmission member is used to receive the power of the second rack and drive the third rack to slide. When the second rack slides in the direction away from the base, the second transmission member drives the third rack to slide towards the base, driving the rotating plate to rotate towards the heating plate until the end face of the heat preservation member abuts against the end face of the wire mesh.

[0021] By adopting the above technical solution, when the mesh plate is placed on the base, the second rack slides in the direction away from the base until the end face of the heating plate abuts tightly against the end face of the wire mesh. The second transmission member receives the power of the second rack and drives the third rack to slide in the direction away from the base. The two ends in the length direction of the first fixing bar are fixed to the end face of the third rack and the end face of the rotating plate. The third rack drives the first fixing bar to move towards the base and drives the rotating plate to rotate towards the heating plate until the end face of the heat preservation member abuts tightly against the end face of the wire mesh, realizing automatic abutment of the end face of the heat preservation member against the end face of the wire mesh without manual control of the rotating plate by the worker, thereby improving the processing efficiency of the mesh plate and reducing the processing cost of the mesh plate.

[0022] Optionally, a stabilizing rod is arranged on the outer wall in the radial direction of the rotating plate, and a sliding ring groove for the stabilizing rod to slide is arranged on the base. The central axis of the sliding ring groove coincides with the central axis of the rotating plate. When the rotating plate rotates, the stabilizing rod slides in the sliding ring groove.

[0023] By adopting the above technical solution, the rotating plate is rotatably connected to the base, and the stabilizing rod slides on the wall of the sliding ring groove. The central axis of the sliding ring groove coincides with the rotation axis of the rotating plate, thereby improving the rotation stability of the rotating plate on the base.

[0024] In a second aspect, a process for removing damaged PI film from a knotless solar panel provided by the present application adopts the following technical solutions:

[0025] A process for removing damaged PI film from a knotless solar panel includes the following steps:

[0026] Coating the panel with liquid, evenly applying a film stripping liquid on both the front and back sides of the panel, and adhering a protective film to each of the front and back sides of the panel;

[0027] Softening the PI film, placing the end face of the panel with the PI film downwards on the heating device for a knotless solar panel described in any one of claims 1-8, the heating plate in a heating device for a knotless solar panel pressing against the end face of the mesh yarn and heating the mesh yarn for fifteen minutes;

[0028] Cleaning the PI film, removing the panel from the heating plate, tearing off the protective film, drying the residual film stripping liquid on the panel, and sticking up the softened PI film with tape.

[0029] By adopting the above technical solutions, the film stripping liquid is evenly applied on both the front and back sides of the panel and the protective film is adhered, and the end face of the mesh yarn with the PI film is pressed against the plate surface of the heating plate, so that the heating plate evenly heats the PI film for fifteen minutes to completely soften the PI film. The staff removes the protective film, dries the residual film stripping liquid on the panel, and finally uses tape to stick up the softened PI film to separate the panel from the PI film, making it difficult for the PI film to remain on the panel, thereby completing the repair of the panel and reducing material waste.

[0030] Optionally, a high-temperature cotton is placed on the end face of the panel away from the heating plate to keep the temperature of the panel at 90°C ± 2°C.

[0031] By adopting the above technical solutions, the high-temperature cotton is placed on the end face of the panel away from the heating plate. The high-temperature cotton reduces the heat dissipation of the panel, keeps the whole panel at a certain temperature, speeds up the softening speed of the PI film, thereby improving the processing efficiency of the panel and reducing the processing cost of the panel.

[0032] In summary, the present application includes at least one of the following beneficial technical effects:

[0033] 1. The setting of the transmission component and the positioning rod enables the heating plate to uniformly heat the end face of the PI film, softening the PI film adhered to the panel, thereby facilitating the staff to clean the softened PI film on the panel;

[0034] 2. The setting of the fixing block, the travel switch and the controller accurately controls the heating time of the heating plate for the PI film, eliminating the need for the staff to externally place a timer to control the heating time of the heating plate for the panel, thereby improving the processing efficiency of the panel and shortening the processing cost of the panel;

[0035] 3. The setting of the rotating plate and the heat preservation part makes the end face of the stencil away from the heating plate and is not easy to dissipate too much heat, thereby accelerating the heating speed of the stencil and shortening the softening time of the PI film. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall structure of a heating device for a knotless solar grid panel in an embodiment of the present application.

[0037] Figure 2 This is a cross-sectional view of a heating device for a knotless solar grid panel in an embodiment of the present application, mainly showing the transmission components.

[0038] Figure 3 This is a cross-sectional view of a heating device for a knotless solar grid panel in an embodiment of the present application, mainly showing the rotating components.

[0039] Explanation of the reference numerals: 1. base; 11. fixed table; 12. limit block; 121. accommodating groove; 122. abutting ring; 13. sliding groove; 14. sliding groove; 15. first rotating chamber; 16. reset chamber; 17. sliding ring groove; 18. first moving groove; 181. second rotating chamber; 19. second moving groove; 191. third rotating chamber; 2. heating plate; 3. positioning rod; 31. fixed block; 4. transmission assembly; 41. first rack; 411. second guide slope; 42. second rack; 421. first tooth groove; 43. first transmission member; 431. first gear; 432. second gear Wheel; 433, first synchronous wheel; 434, first synchronous belt; 5, reset assembly; 51, double-rod cylinder; 52, reset block; 521, first guide slope; 6, travel switch; 7, insulation assembly; 71, rotating plate; 711, stabilizer bar; 72, insulation part; 8, rotating assembly; 81, second transmission part; 811, third gear; 812, fourth gear; 813, second synchronous wheel; 814, second synchronous belt; 82, third rack; 821, first fixed bar; 822, second tooth groove; 9, rebound assembly; 91, fourth rack; 911, second fixed bar; 92, fifth gear. DETAILED DESCRIPTION

[0040] The following is combined with Figures 1-3 This application is described in further detail.

[0041] The embodiment of the present application discloses a heating device for a knotless solar panel. Figure 1 A heating device for a knotless solar grid panel includes a base 1 and a heating plate 2 slidably connected to the base 1, the sliding direction of the heating plate 2 is close to or away from the base 1, the base 1 is used to place the grid panel, and the heating plate 2 is used to heat the grid panel.

[0042] Reference Figure 1, the base 1 includes a fixed platform 11 and a limiting block 12 that matches the inner cavity of the mesh frame. The limiting block 12 is fixed on the top surface of the fixed platform 11. In the embodiment of the present application, the limiting block 12 is integrally formed and fixed on the fixed platform 11 or welded and fixed on the fixed platform 11. An accommodation groove 121 for the heating plate 2 to slide is provided on the top surface of the limiting block 12 away from the fixed platform 11. The accommodation groove 121 penetrates through the limiting block 12. When the mesh plate is placed on the fixed platform 11, the inner circumferential wall of the mesh frame abuts against the outer circumferential wall of the limiting block 12, realizing the fixation of the mesh plate on the fixed platform 11. The heating plate 2 slides in a direction away from the limiting block 12 until the end face of the heating plate 2 abuts against the end face of the mesh yarn and uniformly heats the mesh plate.

[0043] Refer to Figure 1 , a contact ring 122 is sleeved on the outer circumferential wall of the limiting block 12. The inner circumferential wall of the contact ring 122 abuts against the outer circumferential wall of the limiting block 12, and the outer circumferential wall of the contact ring 122 is used to abut against the inner circumferential wall of the mesh frame. The contact ring 122 is a thermal expansion and contraction block. In the embodiment of the present application, the material of the thermal expansion and contraction block is nylon, which has a certain deformation ability; when the heating plate 2 works, the heating plate 2 transfers part of its internal energy to the contact ring 122 by heat conduction, and the contact ring 122 heats up and deforms, thereby further increasing the abutting force between the contact ring 122 and the mesh frame.

[0044] Refer to Figure 1 , Figure 2 , a positioning rod 3 is slidably connected to the fixed platform 11. In the embodiment of the present application, two positioning rods 3 are provided. The two positioning rods 3 are located on both sides of the limiting block 12. The end face of the positioning rod 3 protruding from the base 1 is flush with the top surface of the limiting block 12. The end face of the positioning rod 3 is used to abut against the end face of the mesh frame. The sliding direction of the positioning rod 3 is parallel to the sliding direction of the heating plate 2. A sliding groove 13 for the positioning rod 3 to slide is provided on the fixed platform 11.

[0045] Refer to Figure 2, a transmission assembly 4 is connected between the heating plate 2 and the positioning rod 3. The transmission assembly 4 is used to receive the power of the positioning rod 3 and drive the heating plate 2 to slide. The transmission assembly 4 includes a first rack 41, a second rack 42 and a first transmission member 43. In the embodiment of the present application, there are two first racks 41. The ends of the two first racks 41 are fixedly connected to the bottom of the positioning rod 3 away from the limit block 12 one by one. The length direction of the first rack 41 coincides with the length direction of the positioning rod 3. The second rack 42 is fixed to the bottom of the heating plate 2. The length direction of the second rack 42 is parallel to the length direction of the first rack 41. A sliding groove 14 for the second rack 42 to slide is formed on the top surface of the fixed table 11. The sliding groove 14 communicates with the receiving groove 121. The length direction of the sliding groove 14 is the same as the length direction of the sliding groove 13. A first rotating cavity 15 for accommodating the first transmission member 43 is formed on the groove wall of the sliding groove 14 facing the first rack 41. The first rotating cavity 15 communicates with the sliding groove 13 in the direction away from the sliding groove 14. The first transmission member 43 includes a first gear 431, a second gear 432, two first synchronous pulleys 433 and a first synchronous belt 434 used in cooperation with the first synchronous pulley 433. The first gear 431 is rotatably connected to the cavity wall of the first rotating cavity 15. The first rack 41 meshes with the first gear 431. The second gear 432 is rotatably connected to the cavity wall of the first rotating cavity 15. The second rack 42 meshes with the second gear 432. One of the first synchronous pulleys 433 is coaxially fixed to the first gear 431, and the other first synchronous pulley 433 is coaxially fixed to the second gear 432. The first synchronous belt 434 is tensioned and connected to the two first synchronous pulleys 433.

[0046] Referring to Figure 2 , when the mesh plate is placed on the fixed table 11, the outer wall of the limit block 12 abuts against the inner circumferential wall of the mesh frame. The end face of the mesh frame abuts against the end face of the positioning rod 3 and drives the first rack 41 to slide towards the base 1. The first gear 431 meshing with the first rack 41 rotates to drive the first synchronous belt 434 to rotate and drives the second gear 432 to rotate. The second rack 42 meshing with the second gear 432 slides in the direction away from the base 1 until the end face of the heating plate 2 abuts against the end face of the mesh yarn, realizing uniform heating of the end face of the mesh yarn by the heating plate 2.

[0047] Referring to Figure 2, a reset assembly 5 for driving the positioning rod 3 to reset is connected to the fixed table 11. A reset cavity 16 for accommodating the reset assembly 5 is formed on the bottom wall of the sliding groove 13. The reset assembly 5 includes a double-rod cylinder 51 and two reset blocks 52. The piston rods of the double-rod cylinder 51 face the first rack 41 respectively. The two reset blocks 52 are fixedly arranged on the piston rods of the double-rod cylinder 51 respectively. A first guiding inclined surface 521 is arranged on the end surface of the reset block 52 facing the first rack 41. The height of the first guiding inclined surface 521 decreases as the distance from the double-rod cylinder 51 increases. A second guiding inclined surface 411 matching the first guiding inclined surface 521 is arranged on the end surface of the first rack 41 facing the reset block 52. When the double-rod cylinder 51 drives the reset block 52 to slide towards the direction close to the first rack 41, the first guiding inclined surface 521 abuts against the second guiding inclined surface 411 and drives the first rack 41 to slide away from the fixed table 11.

[0048] Refer to Figure 2 , the fixed table 11 includes a first fixed part and a second fixed part. When the end surfaces of the first fixed part and the second fixed part are abutted tightly, a first rotating cavity 15 is formed between the first fixed part and the second fixed part. When the first gear 431, the second gear 432, the first synchronous belt 434 and the double-rod cylinder 51 are installed on the end surface of the first fixed part in sequence, the end surface of the second fixed part is welded to the end surface of the first fixed part to form the fixed table 11.

[0049] Refer to Figure 2 , a travel switch 6 is fixed on the groove wall of the sliding groove 13. A controller is connected between the travel switch 6 and the double-rod cylinder 51. A fixed block 31 is fixed on the end surface of the positioning rod 3 facing the heating plate 2. The end surface of the fixed block 31 away from the positioning rod 3 abuts against the groove wall of the sliding groove 13. When the end surface of the net frame abuts against the end surface of the positioning rod 3 and drives the positioning rod 3 to slide towards the fixed table 11 until the fixed block 31 abuts against the travel switch 6, the travel switch 6 sends a signal to the controller. A preset time is set in the controller. The preset time is the heating time of the net plate. The preset time of the controller in the embodiment of the present application is fifteen minutes.

[0050] Refer to Figure 2 , when the preset time in the controller arrives, the controller drives the double-rod cylinder 51 to push the reset block 52 to slide towards the direction close to the positioning rod 3 until the first rack 41 slides away from the fixed table 11 until the end surface of the positioning rod 3 is flush with the end surface of the limiting block 12. The limiting effect of the net plate on the limiting block 12 disappears, so that it is convenient for the staff to take down the net plate and the net plate and the limiting block 12 are not easily worn.

[0051] Refer to Figure 1, a heat preservation component 7 is connected to the fixed table 11. The heat preservation component 7 is used to keep the screen plate warm. The heat preservation component 7 includes a rotating plate 71 rotatably connected to the fixed table 11 and a heat preservation member 72 fixed on the rotating plate 71. The rotating direction of the rotating plate 71 is close to or away from the heating plate 2. The rotation axis of the rotating plate 71 and the sliding direction of the heating plate 2 are perpendicular to each other. The heat preservation member 72 is high-temperature cotton, which has a good heat preservation effect. When the rotating plate 71 rotates towards the heating plate 2, the rotating plate 71 drives the high-temperature cotton to rotate towards the heating plate 2 until the end face of the high-temperature cotton abuts against the end face of the mesh yarn, so that the screen plate is not easy to dissipate heat, thereby improving the stability of the temperature of the screen plate.

[0052] Refer to Figure 1 , stabilizing rods 711 are fixed on the outer walls on both sides in the radial direction of the rotating plate 71. The axis of the stabilizing rod 711 is parallel to the rotation axis of the rotating plate 71. A sliding ring groove 17 for the stabilizing rod 711 to slide is formed on the outer wall of the fixed table 11 facing the stabilizing rod 711. The central axis of the sliding ring groove 17 coincides with the rotation axis of the rotating plate 71.

[0053] Refer to Figure 3 , a rotating component 8 for driving the rotating plate 71 to rotate is connected to the fixed table 11. The rotating component 8 includes a third rack 82 and a second transmission member 81. A first fixing strip 821 is fixed at one end in the length direction of the third rack 82. The end face of the first fixing strip 821 away from the third rack 82 is fixed on the rotating plate 71. The fixed table 11 is provided with a first moving groove 18 for the third rack 82 to slide. The length direction of the first moving groove 18 is parallel to the rotation axis of the rotating plate 71. The first moving groove 18 is located between the rotation axis of the rotating plate 71 and the heating plate 2. A second rotating cavity 181 for accommodating the second transmission member 81 is formed on the groove wall of the first moving groove 18 facing the second rack 42. The second rotating cavity 181 communicates with the sliding groove 14. The second transmission member 81 includes a third gear 811, a fourth gear 812, two second synchronous wheels 813 and a second synchronous belt 814 used in cooperation with the second synchronous wheels 813. The third gear 811 and the fourth gear 812 are rotatably connected to the wall of the second rotating cavity 181. A first tooth groove 421 meshing with the tooth surface of the third gear 811 is formed on the outer wall of the second rack 42. The third rack 82 meshes with the fourth gear 812. One of the second synchronous wheels 813 is coaxially fixed on the third gear 811, and the other second synchronous wheel 813 is coaxially fixed on the fourth gear 812. The second synchronous belt 814 is tensioned and connected to the two second synchronous wheels 813.

[0054] Refer to Figure 3, a rebound assembly 9 for driving the rotating plate 71 to reset is fixed on the fixed table 11. The rebound assembly 9 includes a fourth rack 91 and a fifth gear 92. A second fixing bar 911 is fixed at the end of the fourth rack 91. The end face of the second fixing bar 911 away from the fourth rack 91 is fixed on the rotating plate 71. The fixed table 11 is provided with a second moving groove 19 for the fourth rack 91 to slide. The length direction of the first moving groove 18 is parallel to the length direction of the second moving groove 19. The first moving groove 18 and the second moving groove 19 are located on both sides of the rotation axis of the rotating plate 71. A third rotating cavity 191 for accommodating the fifth gear 92 is opened on the groove wall of the second moving groove 19 facing the first moving groove 18. The third rotating cavity 191 communicates with the first moving groove 18. A second tooth groove 822 meshing with the fifth gear 92 is opened on the outer wall of the third rack 82. The third rack 82 and the fourth rack 91 are located on both sides of the fifth gear 92, and the groove wall of the second tooth groove 822 meshes with the fifth gear 92 and the fourth rack 91 meshes with the fifth gear 92.

[0055] Refer to Figure 3 , the second fixing part includes a rotating end and a fixed end. The end face of the rotating end abuts against the end face of the fixed end to form the second fixing part. When the third gear 811, the fourth gear 812, the fifth gear 92, and the second synchronous belt 814 are sequentially fixed on the end face of the fixed end, the end face of the rotating end is welded to the end face of the fixed end to form the second fixing part.

[0056] The implementation principle of the heating device for the knotless solar panel in the embodiment of the present application is as follows: when the heating device for the knotless solar panel is in use, the panel is placed on the fixed table 11. The outer wall of the limiting block 12 abuts against the outer wall of the panel frame in the circumferential direction to realize the limitation of the panel on the fixed table 11. The end face of the panel frame abuts against the end face of the positioning rod 3 and drives the first rack 41 to slide towards the base 1 until the heating plate 2 slides away from the base 1 until the end face of the heating plate 2 abuts against the end face of the mesh yarn, realizing the uniform heating of the mesh yarn by the heating plate 2. The PI film on the panel is softened, thereby improving the efficiency of the staff to clean the PI film on the panel and making the PI film on the panel not easy to remain.

[0057] At the same time, the second rack 42 slides away from the fixed table 11, driving the third rack 82 to slide towards the fixed table 11. The first fixing bar 821 drives the rotating plate 71 to rotate towards the heating plate 2 until the end face of the heat preservation part 72 abuts against the end face of the panel, making the panel not easy to dissipate heat, thereby improving the stability of the panel temperature.

[0058] The end face of the fixed block 31 abuts against the travel switch 6, and the travel switch 6 sends a signal to the controller. The controller starts timing for a preset time. When the preset time in the controller arrives, the controller drives the double-rod cylinder 51 to push the reset block 52 to slide towards the positioning rod 3. The first guiding inclined surface 521 abuts against the second guiding inclined surface 411 and drives the first rack 41 to slide away from the fixed table 11. The end face of the positioning rod 3 abuts against the end face of the mesh frame and drives the mesh plate to slide away from the limiting block 12 until the mesh plate disengages from the limiting block 12. At the same time, the third rack 82 slides towards the base 1, the fifth gear 92 drives the fourth rack 91 to slide towards the base 1, and drives the rotating plate 71 to rotate away from the heating plate 2, realizing the disengagement of the mesh plate from the limiting block 12, so as to facilitate the staff to remove the mesh plate.

[0059] The embodiment of the present application also discloses a process for removing damaged PI film from a knotless solar mesh plate, including the following steps:

[0060] Brush the stripping liquid evenly on the front and back of the mesh plate with a soft brush, and attach the protective film to the front and back of the mesh plate;

[0061] The end face of the mesh plate with the PI film adhered thereto abuts tightly against the end face of the heating plate 2 in the heating device for the knotless solar mesh plate. The heating plate 2 evenly heats the mesh plate for fifteen minutes to soften the PI film on the mesh plate;

[0062] Cover the end face of the mesh plate away from the heating plate 2 with high-temperature cotton to keep the overall temperature of the mesh plate at 90°C ± 2°C, and accelerate the softening speed of the PI film on the mesh plate;

[0063] Take the heated mesh plate off the heating device for the knotless solar mesh plate, and tear off the protective films on the front and back of the mesh plate;

[0064] Wipe the residual liquid medicine on the mesh plate gently along the fine grid direction with a dust-free cloth, and stick up the softened PI film with tape to realize the disengagement of the PI film and the mesh plate.

[0065] The implementation principle of the process for removing damaged PI film from a knotless solar mesh plate in the embodiment of the present application is as follows: By brushing the stripping liquid and heating the mesh plate, the PI film on the mesh plate is softened, so as to facilitate the staff to clean the damaged PI film on the mesh plate, making it difficult for the PI film to remain on the mesh plate, realizing the reuse of the mesh plate, and reducing the waste of materials.

[0066] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A heating device for a knotless solar panel, characterized in that: It includes a base (1), a heating plate (2) slidably arranged on the base (1), and a positioning rod (3) slidably arranged on the base (1). The positioning rod (3) is located on one side of the base (1) close to the heating plate (2). The sliding direction of the heating plate (2) is towards or away from the base (1). The sliding direction of the heating plate (2) and the sliding direction of the positioning rod (3) are parallel to each other. The end face of the positioning rod (3) is used to abut against the end face of the mesh frame. A transmission assembly (4) is arranged between the heating plate (2) and the positioning rod (3). The transmission assembly (4) is used to receive the power of the positioning rod (3) and drive the heating plate (2) to slide. When the end face of the mesh frame abuts against the end face of the positioning rod (3) and drives the positioning rod (3) to slide towards the base (1), the transmission assembly (4) drives the heating plate (2) to slide away from the base (1) until the end face of the heating plate (2) tightly abuts against the end face of the mesh.The base (1) includes a fixed platform (11) and a limit block (12) that matches the inner cavity of the mesh frame. The limit block (12) is fixed on the top surface of the fixed platform (11). The inner circumferential wall of the mesh frame abuts against the outer circumferential wall of the limit block (12). An accommodation groove (121) for the heating plate (2) to slide is formed on the top surface of the limit block (12) away from the fixed platform (11). The accommodation groove (121) penetrates through the limit block (12). A sliding groove (13) for the positioning rod (3) to slide is formed on the fixed platform (11). The transmission assembly (4) includes a first rack (41), a second rack (42), and a first transmission member (43). The first rack (41) is fixed to the bottom of the positioning rod (3) away from the heating plate (2). The second rack (42) is fixed to the bottom of the heating plate (2). A sliding groove (14) for the second rack (42) to slide is formed on the top surface of the fixed platform (11). The sliding groove (14) communicates with the accommodation groove (121). The first transmission member (43) is located between the first rack (41) and the second rack (42). The first transmission member (43) is used to receive the power of the first rack (41) and drive the second rack (42) to slide. The first transmission member (43) includes a first gear (431), a second gear (432), two first synchronous pulleys (433), and a first synchronous belt (434) used in cooperation with the first synchronous pulley (433). The first gear (431) and the second gear (432) are rotatably arranged on the base (1). One of the first synchronous pulleys (433) is coaxially fixed to the first gear (431), and the other first synchronous pulley (433) is coaxially fixed to the second gear (432). The first rack (41) meshes with the first gear (431), and the second rack (42) meshes with the second gear (432). When the end face of the mesh frame abuts against the positioning rod (3) and drives the first rack (41) to slide towards the base (1), the first gear (431) rotates and drives the second gear (432) to rotate, driving the second rack (42) meshing with the second gear (432) to slide away from the base (1) until the end face of the heating plate (2) abuts tightly against the end face of the mesh;A reset assembly (5) for driving the positioning rod (3) to reset is connected to the fixed table (11). A reset cavity (16) for accommodating the reset assembly (5) is formed in the bottom wall of the sliding groove (13). The reset assembly (5) includes a double-rod cylinder (51) and two reset blocks (52). The piston rods of the double-rod cylinder (51) face the first rack (41) respectively. The two reset blocks (52) are fixedly arranged on the piston rods of the double-rod cylinder (51) respectively. A first guiding inclined surface (521) is arranged on the end face of the reset block (52) facing the first rack (41). A second guiding inclined surface (411) matching the first guiding inclined surface (521) is arranged on the end face of the first rack (41) facing the reset block (52). When the double-rod cylinder (51) drives the reset block (52) to slide towards the first rack (41), the first guiding inclined surface (521) abuts against the second guiding inclined surface (411) and drives the first rack (41) to slide away from the fixed table (11). A fixing block (31) is arranged on the end face of the positioning rod (3) facing the base (1). The end face of the fixing block (31) abuts against the outer wall of the base (1). A travel switch (6) is fixed on the wall of the sliding groove (13). The travel switch (6) is electrically connected to a controller. When the positioning rod (3) slides towards the base (1) until the end face of the fixing block (31) abuts against the travel switch (6), the end face of the heating plate (2) tightly abuts against the end face of the wire mesh. The travel switch (6) converts the signal into an electrical signal and transmits it to the controller, and the controller starts timing the heating time of the wire mesh.

2. The heating device for a knotless solar panel according to claim 1, characterized in that: The circumferential outer wall of the base (1) is provided with an abutment ring (122), and the outer wall of the abutment ring (122) is used to abut against the circumferential inner wall of the net frame.

3. The heating device for a knotless solar panel according to claim 2, characterized in that: The abutting ring (122) is a thermal expansion and contraction ring.

4. The heating device for a knotless solar panel according to claim 1, characterized in that: The heat preservation component (7) further comprises a heat preservation component (7), the heat preservation component (7) comprising a rotating plate (71) rotatably connected to the base (1) and a heat preservation component (72) fixed to the rotating plate (71), the rotating direction of the rotating plate (71) being close to or away from the heating plate (2), and when the rotating plate (71) rotates toward the heating plate (2), the heat preservation component (72) rotates toward the heating plate (2) until the end face of the heat preservation component (72) abuts against the end face of the mesh.

5. The heating device for a knotless solar panel according to claim 4, wherein: The base (1) is provided with a rotating assembly (8) for driving the rotating plate (71) to rotate. The rotating assembly (8) includes a third rack (82) and a second transmission member (81). The third rack (82) is slidably connected to the base (1). The sliding direction of the third rack (82) is close to or away from the base (1). The third rack (82) is located between the rotating axis of the rotating plate (71) and the heating plate (2). A first fixed bar (821) is connected between the third rack (82) and the rotating plate (71). The second transmission member (81) is used to receive power from the second rack (42) and drive the third rack (82) to slide. When the second rack (42) slides in a direction away from the base (1), the second transmission member (81) drives the third rack (82) to slide in the direction of the base (1), driving the rotating plate (71) to rotate toward the heating plate (2) until the end face of the heat preservation member (72) abuts against the end face of the mesh.

6. The heating device for a knotless solar panel according to claim 4, wherein: A stabilizing rod (711) is provided on the radial outer wall of the rotating plate (71), and a sliding ring groove (17) for the stabilizing rod (711) to slide is provided on the base (1). The central axis of the sliding ring groove (17) coincides with the central axis of the rotating plate (71). When the rotating plate (71) rotates, the stabilizing rod (711) slides in the sliding ring groove (17).

7. A process for removing damaged PI film from a knotless solar panel, characterized in that: The following steps are involved: Stencil coating liquid, evenly apply stripping liquid on the front and back of the stencil, and adhere protective film on the front and back of the stencil; The PI film is softened, and the end surface of the mesh with the PI film adhered thereto is placed downward on the heating device for a knotless solar mesh panel according to any one of claims 1 to 6, wherein the heating plate (2) in the heating device for a knotless solar mesh panel is pressed against the end surface of the mesh and heats the mesh for fifteen minutes; The PI film is cleaned, the screen is removed from the heating plate (2), the protective film is torn off, the stripping liquid remaining on the screen is wiped dry, and the softened PI film is taped up.

8. A process for removing damaged PI film from a knotless solar panel according to claim 7, characterized in that: High-temperature cotton is placed on the end surface of the screen away from the heating plate (2) to keep the screen temperature at 90°C ± 2°C.

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