A multi-layer laminator

Abstract

This invention relates to the field of solar cell module lamination equipment technology, and in particular to a multi-layer laminator, comprising a frame, an upper pressure plate at the top of the frame, a lower pressure plate at the bottom of the frame, and a pressing plate spaced apart between the upper and lower pressure plates. Each pressing plate is provided with a laminated fabric. The frame contains a support mechanism for supporting the multiple pressing plates, and multiple sets of lifting components for raising the multiple pressing plates. Each pressing plate is provided with a gas differential pressure pipeline assembly for applying pressure to the solar cell module by the laminated fabric. This application has advantages such as high efficiency, small footprint, convenient equipment transportation, fewer auxiliary materials, reduced marginal utility, and energy saving.

Description

Technical Field

[0001] This invention relates to the field of solar cell module lamination equipment technology, and in particular to a multilayer laminator. Background Technology

[0002] A laminator is a mechanical device that presses multiple layers of material together. Solar cell module laminators are commonly used in the manufacture of solar cell modules.

[0003] In the fabrication of solar cell modules, EVA, solar cells, tempered glass, and backsheet are placed into a solar cell module laminator. The solar cell module laminator presses these materials together under high temperature and vacuum conditions to form a rigid whole, i.e., a solar cell module.

[0004] However, most existing solar cell module laminators apply pressure to solar cell modules by laminating a single layer and adding a silicone plate, resulting in low production efficiency and an inability to increase production capacity to meet demand. Summary of the Invention

[0005] In order to improve the consistency of the process in the lamination of solar cell modules and increase the production efficiency of solar cell modules, this application provides a multilayer laminator.

[0006] This application provides a multi-layer laminator, which adopts the following technical solution:

[0007] A multi-layer laminator includes a frame, an upper pressure plate at the top of the frame, a lower pressure plate at the bottom of the frame, and a pressing plate spaced apart between the upper and lower pressure plates. Each pressing plate is provided with a laminated fabric. The frame is provided with a support mechanism for supporting the multiple pressing plates, and multiple lifting components for lifting the multiple pressing plates are provided inside the frame. Each pressing plate is provided with a gas differential pressure pipeline assembly for pressurizing the laminated fabric onto a solar cell module.

[0008] By adopting the above technical solution, the support mechanism can support the multi-layer lamination plates inside the frame, allowing them to be arranged vertically at intervals within the frame. This enables the simultaneous fabrication of multiple solar cell modules using the multi-layer lamination plates, improving the fabrication efficiency of the solar cell modules. The lifting assembly can lift the lower pressure plate, thereby causing the multi-layer lamination plates to press together, facilitating the fabrication of solar cell modules. The gas differential pressure pipeline assembly can adjust the pressing force of the lamination fabric on the raw materials for solar cell module fabrication, helping to prevent damage to the solar cell modules during the lamination process and improving the lamination effect of the solar cell modules.

[0009] In one specific implementation, the pressing plate includes a placement seat, a support frame, and a heating platform. The support frame is disposed on the placement seat, and the heating platform is disposed on the support frame. The heating platform has an electric heating element inside, and the top surface of the heating platform has a heat-equalizing groove.

[0010] By adopting the above technical solution, when the raw material is transported to the pressing position, the laminated cloth stops rotating, and the gas differential pressure pipeline assembly enables the laminated cloth near the heating platform to be tightly attached to the heating platform, thereby enabling the raw material for solar cell module preparation to be placed in the uniform heating groove, improving the heating effect of the electric heating element on the raw material, and thus improving the pressing effect of the solar cell module.

[0011] In one specific implementation, the gas differential pressure pipeline assembly includes a vacuum pipeline, one end of which penetrates the side wall of the support frame, and the other end of which penetrates the placement seat and communicates with the cavity between the bottom surface of the placement seat and the laminated fabric. The placement seat is provided with a sealing groove, and a sealing ring is provided in the sealing groove.

[0012] By employing the above technical solution, a gas source is connected to a vacuum pipeline. Air is blown through the vacuum pipeline into the cavity between the bottom surface of the mounting base and the laminated fabric. The difference in vacuum levels above and below the laminated fabric allows for adjustment of the pressing force exerted by the laminated fabric on the raw materials for solar cell module fabrication on the lower laminated plate. This helps prevent damage to the solar cell module during lamination and improves the lamination effect. When the multilayer laminated plates are pressed together, the sealing ring creates a relatively sealed space between the laminated fabric and the bottom surface of the mounting base. This allows for adjustment of the air pressure between the bottom surface of the mounting base and the laminated fabric to regulate the pressing force of the laminated fabric on the raw materials for solar cell module fabrication on the lower laminated plate, further enhancing the lamination effect of the solar cell module.

[0013] In one specific implementation, the gas differential pressure pipeline assembly includes a pressure reducing pipeline. The support frame is hollow inside. The pressure reducing pipeline is disposed on the side wall of the support frame and communicates with the inside of the support frame. The top wall of the support frame is provided with a plurality of first through holes. The heating platform is provided with a plurality of second through holes communicating with the first through holes. The distance between the second through holes and the outer wall of the pressing plate is greater than the distance between the sealing groove and the outer wall of the pressing plate.

[0014] By adopting the above technical solution, a suction device is connected to a pressure-reducing pipe, and air is drawn from the support frame through the pressure-reducing pipe. This allows air to be drawn between the heating platform and the laminated fabric through the first and second through holes, making the laminated fabric close to the heating platform adhere tightly to the heating platform. This allows the raw materials for solar cell module preparation to be placed in the uniform heating groove, improving the heating effect of the electric heating element on the raw materials, and thus improving the pressing effect of the solar cell module.

[0015] In one specific implementation, the support frame includes hollow rods and connecting rods. A plurality of hollow rods are arranged in parallel at intervals on the placement seat, and a plurality of connecting rods are arranged in parallel at intervals between the plurality of hollow rods. Each connecting rod is connected to a plurality of hollow rods, and a connecting rod for communicating with the hollow rods is rotatably connected to each hollow rod.

[0016] In one specific implementation, the connecting rod is provided with a spiral blade inside, a first bevel gear is provided at the end of the connecting rod, a rotating rod is provided inside each hollow rod, a plurality of guide blades are provided on each rotating rod, and a second bevel gear that meshes with the first bevel gear is provided on each rotating rod.

[0017] By employing the above technical solution, when air is drawn from between the heating platform and the laminated fabric, the micro motor drives the spiral blades to rotate, which in turn drives the connecting rod to rotate. As the connecting rod rotates, the first bevel gear drives the second bevel gear to rotate, which in turn drives the rotating rod to rotate, thereby driving the guide vanes on the rotating rod to rotate. This allows the guide vanes to guide the airflow, increasing the air velocity and improving the drawing efficiency.

[0018] In one specific implementation, the heating platform is provided with a plurality of through slots for connecting the second through hole and the heat-equalizing lower groove.

[0019] By adopting the above technical solution, the guide groove can connect the second through hole and the heat equalization groove, which helps to ensure that the air in the heat equalization groove can be extracted through the second through hole, thereby improving the air extraction effect between the heating platform and the laminated fabric.

[0020] In one specific implementation, each of the support mechanisms includes a fixed column and multiple sets of support assemblies for supporting the pressing plate. Each support assembly includes mutually cooperating support blocks and anti-fall blocks for preventing the support blocks from falling. The support blocks are disposed on the side wall of the fixed column. The distance between the multiple support blocks located on the same side of the fixed column and adjacent to the pressing plate gradually increases from bottom to top. The anti-fall blocks are disposed on the side wall of the pressing plate.

[0021] By adopting the above technical solution, when the pressing plate is placed inside the frame, the support blocks can support the anti-fall blocks on the side wall of the pressing plate, allowing the multi-layer pressing plates to be arranged vertically and spaced apart inside the frame. During the pressing process, the positioning of multiple support blocks ensures that the support blocks and anti-fall blocks do not interfere with each other, helping to ensure the success of the pressing process. The fixed columns, together with multiple sets of support components, can also limit the horizontal displacement of the multi-layer pressing plates, improving the stability of the multi-layer pressing plates during the pressing process.

[0022] In one specific implementation, each lifting assembly includes a lifting cylinder, a lifting frame, and a lifting rod. Multiple lifting cylinders, lifting frames, and lifting rods are provided. Multiple lifting cylinders are arranged on opposite sides of the inner bottom end of the frame. Each lifting frame is connected to the piston rod of a lifting cylinder. The lifting rod is connected to the bottom end of the lifting frame. The lower pressure plate is arranged on the lifting rod.

[0023] By adopting the above technical solution, the lifting cylinder can drive the lifting frame and lifting rod to rise and fall inside the frame, thereby enabling the lifting rod to lift the lower pressure plate, which in turn enables the lower pressure plate to drive the multi-layer pressing plates to rise and press together, which helps to realize the pressing and fabrication process of solar cell modules.

[0024] In one specific implementation, each of the pressing plates is provided with a transmission assembly for driving the laminated fabric to rotate. The transmission assembly includes a motor, a transmission roller, a transmission wheel, and a transmission chain. Multiple transmission rollers, transmission wheels, and transmission chains are provided. The motor is located on the side wall of the pressing plate. Multiple transmission rollers are respectively located on the two side walls of the pressing plate along its length. One transmission roller is fixedly connected to the output end of the motor. Multiple transmission wheels are respectively located at both ends of the rotating shaft of each transmission roller. Each transmission chain is sleeved on multiple transmission wheels located on the same side along the length of the pressing plate.

[0025] By adopting the above technical solution, the operation of the motor can drive the transmission roller to rotate, which in turn drives the transmission wheel and transmission chain to rotate, which helps to drive the rotation of the laminated fabric, enabling the laminated fabric to transport the solar cell module.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. By using a multi-layer laminating plate, multiple solar cell modules can be laminated simultaneously, which helps to improve the production efficiency of solar cell modules.

[0028] 2. By setting up the gas differential pressure pipeline assembly, the gas differential pressure pipeline assembly can adjust the air pressure between the bottom surface of the placement seat and the laminated cloth, thereby adjusting the pressing force of the laminated cloth on the raw materials for preparing solar cell modules on the lower lamination plate. This helps to prevent damage to the solar cell modules during the lamination process and improves the lamination effect of the solar cell modules.

[0029] 3. By setting up a heat-equalizing groove and a pressure-reducing pipe, the air between the heating platform and the laminated fabric can be drawn out through the pressure-reducing pipe. This allows the laminated fabric near the heating platform to adhere tightly to the heating platform, thereby placing the raw materials for solar cell module preparation in the heat-equalizing groove. This improves the heating effect of the electric heating element on the raw materials while minimizing pressure damage to the edges of the raw materials for solar cell module preparation, thus improving the bonding effect of the solar cell module.

[0030] 4. Compared with traditional lamination methods, this application reduces the use of silicone plates, which helps to save materials; the multi-layer lamination method adopted in this application helps to reduce the differences caused by different preheating levels between multiple single-layer laminators, and improves the consistency of the process of solar cell modules during lamination. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0032] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0033] Figure 3 This is a schematic diagram illustrating the positional relationship of multiple sets of support components in the embodiments of this application.

[0034] Figure 4 This is a schematic diagram illustrating the specific structure of the lifting component in the embodiments of this application.

[0035] Figure 5 This is a schematic diagram of the overall structure of the pressing plate in the embodiment of this application.

[0036] Figure 6 This is an exploded view showing the specific structure of the pressing plate in the embodiments of this application.

[0037] Figure 7 This is an exploded view showing the specific structure of the transmission component in the embodiments of this application.

[0038] Figure 8 yes Figure 7 Enlarged view of point B in the middle.

[0039] Figure 9 It is a partial sectional view showing the specific internal structure of the press plate.

[0040] Figure 10 yes Figure 9 A magnified view of point C in the middle.

[0041] Figure 11 yes Figure 9 Enlarged view of point D in the middle.

[0042] Figure 12 This is a partial structural cross-sectional view of the press-fit plate.

[0043] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Upper pressure plate; 3. Lower pressure plate; 4. Pressing plate; 41. Placement seat; 42. Support frame; 421. Hollow rod; 4211. Rotating rod; 4212. Guide vane; 4213. Second bevel gear; 422. Connecting rod; 43. Heating platform; 431. Heat equalization groove; 5. Laminated fabric; 6. Transmission assembly; 61. Motor; 62. Transmission roller; 63. Transmission wheel; 64. Transmission chain; 7. Support mechanism; 71. Fixed column; 72. Support assembly; 721. Support block; 722. Anti-fall block; 8. Lifting assembly; 81. Lifting cylinder; 82. Lifting frame; 83. Lifting rod; 9. Gas differential pressure pipeline assembly; 91. Vacuum pipeline; 92. Pressure reducing pipeline; 10. Sealing groove; 12. First through hole; 13. Second through hole; 14. Connecting rod; 141. Helical blade; 142. First bevel gear; 15. Guide groove. Detailed Implementation

[0044] The following is in conjunction with the appendix Figure 1-12 This application will be described in further detail.

[0045] This application discloses a multilayer laminator, referring to... Figure 1 and Figure 2 The frame includes a frame 1, with an upper pressure plate 2 fixed at the top inside the frame 1. Inside the frame 1, below the upper pressure plate 2, there are multiple layers of pressing plates 4 and multiple support mechanisms 7 for supporting the pressing plates 4. The multiple support mechanisms 7 are distributed in pairs on opposite sides of the frame 1.

[0046] Reference Figure 2 and Figure 3Each support mechanism 7 includes a fixed column 71 and multiple sets of support components 72, which are respectively arranged on both sides of the fixed column 71. Each set of support components 72 includes a support block 721 and an anti-fall block 722. The support block 721 and the anti-fall block 722 correspond one-to-one and cooperate with each other. The anti-fall block 722 is fixedly installed on the outer side wall in the width direction of the pressed plate 4, and the support block 721 is fixedly installed on the side wall of the fixed column 71. When the pressed plates 4 are arranged at intervals inside the frame 1, the support block 721 can support the corresponding anti-fall block 722, thereby preventing the pressed plates 4 from falling and improving the stability of the multi-layer pressed plates 4 placed inside the frame 1. The distance between the multiple support blocks 721 located on the same side of the fixed column 71 and adjacent to each other and the pressing plate 4 gradually increases from bottom to top. That is, the distance between the adjacent lower support block 721 and the pressing plate 4 is smaller than the distance between the adjacent upper support block 721 and the pressing plate 4. This ensures that the multiple support blocks 721 and multiple anti-fall blocks 722 will not interfere with each other during the pressing process of the pressing plate 4, which helps to ensure the realization of the pressing process.

[0047] Reference Figure 3 and Figure 4 The frame 1 is internally equipped with multiple sets of lifting components 8. Each set of lifting components 8 includes a lifting cylinder 81, a lifting frame 82, and a lifting rod 83. In this embodiment, each set of lifting components 8 contains two lifting cylinders 81, two lifting frames 82, and two lifting rods 83. The two lifting cylinders 81 are fixedly installed on opposite sides of the bottom of the frame 1. The top inner wall of each lifting frame 82 is fixedly connected to the piston rod of one lifting cylinder 81. The ends of the two lifting rods 83 on the same side are fixedly connected to the bottom end of the lifting frame 82. A lower pressure plate 3 is fixedly placed on the multiple lifting rods 83.

[0048] Reference Figure 3 and Figure 4 The piston rods of multiple lifting cylinders 81 extend synchronously, driving the lifting frame 82 and lifting rod 83 to rise within the frame 1, thereby lifting the lower pressure plate 3, and then lifting the multi-layer pressing plates 4 sequentially from bottom to top until the uppermost pressing plate 4 is pressed against the upper pressure plate 2, which can realize the mutual pressing of the multi-layer pressing plates 4, facilitating the subsequent pressing and preparation of solar cell modules.

[0049] Reference Figure 3 and Figure 4 After pressing is completed, the piston rods of multiple lifting cylinders 81 retract synchronously, causing the lifting frame 82 and lifting rod 83 to descend within the frame 1. The lower pressure plate 3 and the multilayer pressing plate 4 also descend under gravity. During the descent, the anti-fall blocks 722 on the side wall of the multilayer pressing plate 4 are successively supported by the support blocks 721, thereby restoring the multilayer pressing plate 4 to its state before pressing, making it convenient to remove the pressed solar cell module for the next round of preparation.

[0050] Reference Figure 5 and Figure 6 Each laminate 4 includes a placement base 41, a support frame 42, and a heating platform 43. The support frame 42 is fixedly mounted on the placement base 41, and the heating platform 43 is fixedly mounted on the support frame 42. An electric heating element is detachably installed inside the heating platform 43. In this embodiment, the electric heating element is a graphene electric heating plate. A heat-spreading groove 431 is formed on the top surface of the heating platform 43, located directly above the electric heating plate. The heat-spreading groove 431 can be used to place the raw materials for preparing solar cell modules, and the electric heating plate can heat the raw materials for preparing solar cell modules in the heat-spreading groove 431.

[0051] Reference Figure 5 Each layer of laminated plate 4 is rotatably sleeved with laminated cloth 5 along its length, and each layer of laminated plate 4 is provided with a transmission component 6 on its outer side wall.

[0052] Reference Figure 7 and Figure 8 The transmission assembly 6 includes a motor 61, transmission rollers 62, transmission wheels 63, and transmission chains 64. In this embodiment, there are two transmission rollers 62 and two transmission chains 64, and four transmission wheels 63. The two transmission rollers 62 are rotatably mounted on the two outer side walls of the support frame 42 along its length. The motor 61 is fixedly mounted on the side wall of the support frame 42, and its output end is fixedly connected to the shaft of one transmission roller 62. The two transmission wheels 63 are fixed to both ends of the shaft of the transmission roller 62. Each transmission chain 64 is sleeved on the two transmission wheels 63 located on the same side along the length of the support frame 42. When the motor 61 operates, it drives the transmission rollers 62 to rotate, thereby driving the transmission wheels 63 and transmission chains 64 to rotate, which in turn drives the laminated fabric 5 to rotate, enabling the laminated fabric 5 to transport the raw materials for preparing the solar cell module to the pressing and preparation position.

[0053] Reference Figure 7 The support frame 42 includes hollow rods 421 and connecting rods 422. In this embodiment, two hollow rods 421 are arranged along the length of the support frame 42, and multiple connecting rods 422 are arranged in parallel, with each connecting rod 422 connecting two hollow rods 421 at both ends. A connecting rod 14 is rotatably connected to the center of the two hollow rods 421. The connecting rod 14 is hollow and connects the two hollow rods 421.

[0054] Reference Figure 9 and Figure 10 Each pressing plate 4 is provided with a gas differential pressure pipeline assembly 9, which includes a vacuum pipeline 91 and a pressure reducing pipeline 92. Both the vacuum pipeline 91 and the pressure reducing pipeline 92 are fixed to the side wall of the hollow rod 421.

[0055] Reference Figure 10 and Figure 11 The pressure reducing pipe 92 is fixedly connected to the interior of the two hollow rods 421. Each hollow rod 421 has multiple first through holes 12 on its top wall. The heating platform 43 has multiple second through holes 13 and a guide groove 15. The second through holes 13 correspond one-to-one with the first through holes 12 and are interconnected. The guide groove 15 connects the second through holes 13 and the heat equalization groove 431.

[0056] Reference Figure 10 and Figure 11 The suction device connects to the pressure-reducing pipe 92. When the suction device operates, it draws air from the support frame 42 through the pressure-reducing pipe 92. This air is then drawn from between the heating platform 43 and the laminated fabric 5 through the first through-hole 12 and the second through-hole 13, ensuring that the laminated fabric 5 near the heating platform 43 adheres tightly to it. This allows the raw materials for solar cell module fabrication to be placed within the heat-equalizing recess 431, improving the heating effect of the electric heating element on the raw materials and thus enhancing the bonding effect of the solar cell module. During the suction process, the conductive groove 15 ensures the connection between the second through-hole 13 and the heat-equalizing recess 431, thereby improving the air suction effect within the heat-equalizing recess 431.

[0057] Reference Figure 9 and Figure 10 A spiral blade 141 is fixed on the inner wall of the connecting rod 14. The two ends of the connecting rod 14 are respectively inserted into two hollow rods 421, each with a first bevel gear 142 fixed inside. A rotating rod 4211 is rotatably connected inside each hollow rod 421, and the rotating rod 4211 is arranged along the length of the hollow rod 421. A micro motor is fixed inside one hollow rod 421, and the output end of the micro motor is fixedly connected to the end of one rotating rod 4211 (not shown in the figure). A second bevel gear 4213, meshing with the first bevel gear 142, is fixed on the rotating rod 4211. Multiple guide vanes 4212 are also fixed on the rotating rod 4211.

[0058] Reference Figure 9 and Figure 10 During the suction process, some of the suctioned air passes through the connecting rod 14. Simultaneously, the micro motor operates, driving the spiral blades 141 to rotate, which in turn drives the connecting rod 14 to rotate. As the connecting rod 14 rotates, the first bevel gear 142 rotates accordingly, simultaneously driving the second bevel gear 4213 and the rotating rod 4211 to rotate. This, in turn, drives the guide vanes 4212 to rotate, guiding the airflow and increasing the airflow speed, thereby improving the air suction efficiency.

[0059] Reference Figure 9 and Figure 12One end of the vacuum pipe 91 passes through the hollow rod 421, and the other end of the vacuum pipe 91 passes through the placement seat 41. The vacuum pipe 91 is connected to the cavity between the bottom surface of the placement seat 41 and the laminated cloth 5. A sealing groove 10 is opened around the bottom and top surfaces of the placement seat 41 (only the bottom surface is shown in the figure). A sealing ring is fixedly installed in the sealing groove 10. The distance between the sealing groove 10 and the outer wall of the pressing plate 4 is less than the distance between the second through hole 13 and the outer wall of the pressing plate 4.

[0060] Reference Figure 9 and Figure 12 The vacuum pipe 91 is connected to an air source, and air is blown through the vacuum pipe 91 into the cavity between the bottom surface of the placement base 41 and the laminated fabric 5. By adjusting the amount of air blown, the pressing force of the laminated fabric 5 on the raw materials for preparing the solar cell module on the lower lamination plate 4 can be adjusted, which helps to prevent damage to the solar cell module during the lamination process and improves the lamination effect of the solar cell module. The position of the sealing groove 10 and the setting of the sealing ring can form a relatively sealed space between the laminated fabric 5 and the bottom surface of the placement base 41 when the multilayer lamination plates 4 are pressed together, which facilitates the adjustment of the air pressure in the aforementioned space.

[0061] The implementation principle of this application embodiment is as follows: the piston rods of multiple lifting cylinders 81 extend synchronously, driving the lifting frame 82 and lifting rod 83 to rise within the frame 1, thereby lifting the lower pressure plate 3, and subsequently lifting the multi-layer pressing plates 4 sequentially from bottom to top until the uppermost pressing plate 4 abuts against the upper pressure plate 2, thus achieving mutual pressing of the multi-layer pressing plates 4. The motor 61 operates, driving the transmission roller 62 to rotate, thereby driving the transmission wheel 63 and transmission chain 64 to rotate, which in turn drives the laminating cloth 5 to rotate, enabling the laminating cloth 5 to transport the raw materials for preparing solar cell modules to the pressing preparation position.

[0062] Connecting the pressure-reducing pipe 92 to a suction device, the suction device operates, drawing air from the support frame 42 through the pressure-reducing pipe 92. This air is then drawn from between the heating platform 43 and the laminated fabric 5 through the first through hole 12 and the second through hole 13, causing the laminated fabric 5 near the heating platform 43 to adhere tightly to the heating platform 43. This allows the raw materials for solar cell module fabrication to be placed in the homogenizing groove 431, improving the heating effect of the electric heating element on the raw materials and thus enhancing the pressing effect of the solar cell module. Connecting the vacuum pipe 91 to an air source, air is blown through the vacuum pipe 91 into the cavity between the bottom surface of the placement seat 41 and the laminated fabric 5. Adjusting the amount of air blown can regulate the pressing force of the laminated fabric 5 on the raw materials for solar cell module fabrication on the lower lamination plate 4, helping to prevent damage to the solar cell module during the lamination process and improving the pressing effect of the solar cell module.

[0063] After pressing is completed, the piston rods of multiple lifting cylinders 81 retract synchronously, causing the lifting frame 82 and lifting rod 83 to descend within the frame 1. The lower pressure plate 3 and the multilayer pressing plate 4 also descend under gravity. During the descent, the anti-fall blocks 722 on the side wall of the multilayer pressing plate 4 are successively supported by the support blocks 721, thereby restoring the multilayer pressing plate 4 to its state before pressing, making it convenient to remove the pressed solar cell module for the next round of preparation.

[0064] 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. A multi-layer laminator, characterized in that: The frame includes a frame (1), an upper pressure plate (2) is provided at the top of the inside of the frame (1), a lower pressure plate (3) is provided at the bottom of the inside of the frame (1), and a pressing plate (4) is provided between the upper pressure plate (2) and the lower pressure plate (3) at intervals. Each pressing plate (4) is provided with laminated cloth (5). The frame (1) is provided with a support mechanism (7) for supporting multiple layers of pressing plates (4). The frame (1) is provided with multiple sets of lifting components (8) for lifting multiple layers of pressing plates (4). Each pressing plate (4) is provided with a gas differential pressure pipeline assembly (9) for pressurizing the solar cell module by the laminated cloth (5). The pressing plate (4) includes a placement seat (41), a support frame (42) and a heating platform (43). The support frame (42) is disposed on the placement seat (41), and the heating platform (43) is disposed on the support frame (42). The heating platform (43) is provided with an electric heating element inside, and the top surface of the heating platform (43) is provided with a uniform heating groove (431). The gas differential pressure pipeline assembly (9) includes a vacuum pipeline (91), one end of which penetrates the side wall of the support frame (42), and the other end of which penetrates the placement seat (41) and communicates with the cavity between the bottom surface of the placement seat (41) and the laminated fabric (5). The placement seat (41) is provided with a sealing groove (10), and a sealing ring is provided in the sealing groove (10). The gas differential pressure pipeline assembly (9) includes a pressure reducing pipeline (92). The support frame (42) is hollow inside. The pressure reducing pipeline (92) is disposed on the side wall of the support frame (42) and communicates with the inside of the support frame (42). The top wall of the support frame (42) is provided with a plurality of first through holes (12). The heating platform (43) is provided with a plurality of second through holes (13) communicating with the first through holes (12). The distance between the second through hole (13) and the outer side wall of the pressing plate (4) is greater than the distance between the sealing groove (10) and the outer side wall of the pressing plate (4).

2. A multi-layer laminator according to claim 1, characterized in that: The support frame (42) includes hollow rods (421) and connecting rods (422). A plurality of hollow rods (421) are arranged in parallel at intervals on the placement seat (41), and a plurality of connecting rods (422) are arranged in parallel at intervals between the plurality of hollow rods (421). Each connecting rod (422) is connected to a plurality of hollow rods (421), and a connecting rod (14) for connecting the hollow rods (421) is rotatably connected to the hollow rods (421).

3. A multi-layer laminator according to claim 2, characterized in that: The connecting rod (14) is provided with a spiral blade (141) inside, and a first bevel gear (142) is provided at the end of the connecting rod (14). Each hollow rod (421) is provided with a rotating rod (4211) inside, and each rotating rod (4211) is provided with multiple guide blades (4212). Each rotating rod (4211) is provided with a second bevel gear (4213) that meshes with the first bevel gear (142).

4. A multi-layer laminator according to claim 1, characterized in that: The heating platform (43) is provided with a plurality of through grooves (15) for connecting the second through hole (13) and the heat equalization groove (431).

5. A multi-layer laminator according to claim 1, characterized in that: Each of the support mechanisms (7) includes a fixed column (71) and multiple sets of support components (72) for supporting the pressing plate (4). Each support component (72) includes a support block (721) that cooperates with each other and a fall arrester (722) for preventing the support block (721) from falling. The support block (721) is disposed on the side wall of the fixed column (71). The distance between the multiple support blocks (721) located on the same side of the fixed column (71) and adjacent to the pressing plate (4) gradually increases from bottom to top. The fall arrester (722) is disposed on the side wall of the pressing plate (4).

6. A multi-layer laminator according to claim 1, characterized in that: Each of the lifting components (8) includes a lifting cylinder (81), a lifting frame (82), and a lifting rod (83). Multiple lifting cylinders (81), lifting frames (82), and lifting rods (83) are provided. Multiple lifting cylinders (81) are arranged on opposite sides of the bottom of the frame (1). Each lifting frame (82) is connected to the piston rod of a lifting cylinder (81). The lifting rod (83) is connected to the bottom of the lifting frame (82). The lower pressure plate (3) is arranged on the lifting rod (83).

7. A multi-layer laminator according to claim 1, characterized in that: Each of the pressing plates (4) is provided with a transmission assembly (6) for driving the laminated fabric (5) to rotate. The transmission assembly (6) includes a motor (61), a transmission roller (62), a transmission wheel (63), and a transmission chain (64). Multiple transmission rollers (62), transmission wheels (63), and transmission chains (64) are provided. The motor (61) is located on the side wall of the pressing plate (4). Multiple transmission rollers (62) are respectively located on the two side walls of the pressing plate (4) along its length. One transmission roller (62) is fixedly connected to the output end of the motor (61). Multiple transmission wheels (63) are respectively located at both ends of the shaft of each transmission roller (62). Each transmission chain (64) is sleeved on multiple transmission wheels (63) located on the same side along the length of the pressing plate (4).

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