Blanking device for solar cell production

Abstract

The invention belongs to the technical field of solar cell production, and particularly relates to a discharging device for solar cell production, which comprises a bracket, a support frame arranged at the upper end of the bracket, a driving roller arranged in an inner cavity of the support frame and a conveying belt arranged outside the driving roller, and infrared welding equipment is arranged on one side of the upper end of the support frame. The device is characterized in that a mounting box is mounted on one side of the upper end face of the supporting frame, a box cover is rotatably arranged in the upper end of the mounting box, the infrared welding equipment is assembled in an inner cavity of the mounting box, a plurality of welding openings are formed in the bottom of the inner cavity of the mounting box, a mounting frame is mounted in one side of the upper end of the supporting frame, and a discharging assembly is arranged in an inner cavity of the mounting frame. The problems that the efficiency of a discharging mode of an existing discharging device for solar energy production is low, the failure rate of a mechanical arm is high, and the production and preparation efficiency of solar cells is affected due to the fact that the machine collides easily are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of solar cell production, in particular to a material unloading device used for solar cell production. Background Art

[0002] Solar cells, also known as photovoltaic cells, have attracted widespread attention at home and abroad as a renewable and environmentally friendly energy source, and various measures have been introduced to promote the large-scale construction of photovoltaic power stations. At the same time, the production process equipment of solar cells has also developed rapidly. The production capacity of various process equipment is constantly increasing, and the requirements of low breakage rate and high yield rate have put forward strict requirements on the performance of process equipment. The picking and transfer of silicon wafers runs through the entire battery process and is the key link in the breakage rate and yield rate.

[0003] A patent with publication number CN102361049B discloses a feeding device for a solar cell production line. When the feeding device for a solar cell production line is in operation, the air knife below the silicon wafer and the suction cup above it move simultaneously, forming a combined silicon wafer picking method of blowing down and sucking up. Compared with the prior art method of using only the suction cup above to suck, the impact force of the suction cup on the silicon wafer is greatly reduced, and the surface of the silicon wafer is prevented from being deformed, so there will be no problem of broken pieces and debris caused by the picking and transfer of silicon wafers in the production line.

[0004] There are still some problems in the actual application of the above scheme. Usually, the robot arm uses the suction cup to absorb and clamp the solar silicon wafer and transport it to the welding station for unloading. After the solar silicon wafer is transported to the welding station, the operator is required to splice multiple solar silicon wafers, and then use welding equipment to weld the spliced ​​parts to form a whole solar power panel. The welded solar power panel is then installed with the battery body to complete the production and processing of solar cells. However, this unloading method is not only inefficient, but also has a high failure rate of the robot arm and is prone to collisions. In addition, when the suction cup is adsorbing, if there is a lot of dust on the surface of the solar silicon wafer, the suction cup will not be able to absorb and load the solar silicon wafer, thereby affecting the production and preparation efficiency of solar cells.

[0005] To this end, the present invention provides a material unloading device for solar cell production. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a material unloading device for solar cell production described in the present invention comprises a bracket and a support frame installed at the upper end of the bracket, a driving roller installed in the inner cavity of the support frame and a conveyor belt arranged outside the driving roller, and an infrared welding device is installed on one side of the upper end of the support frame, a mounting box is installed on one side of the upper end surface of the support frame, a box cover is rotatably arranged in the upper end of the mounting box, the infrared welding device is assembled in the inner cavity of the mounting box, and a plurality of welding ports are opened at the bottom of the inner cavity of the mounting box, a mounting frame is installed on one side of the upper end of the support frame, and a material unloading assembly is arranged in the inner cavity of the mounting frame;

[0008] The unloading assembly includes two fixed cylinders installed at the upper end of the mounting frame, and the inner cavities of the two fixed cylinders are both installed with sliding columns, the outer surfaces of the sliding columns are slidably connected with a push plate, the outer surfaces of the two sliding columns are both slidably connected with a support block, and the space between the support block and the push plate is used to install and place the solar silicon wafer;

[0009] The pushing plate is used for pressing and pushing the solar silicon wafer, and the two supporting blocks are used for supporting the two ends of the solar silicon wafer, and the limiting strips are symmetrically arranged on the two walls of the inner cavity of the mounting frame.

[0010] Preferably, the blanking assembly further comprises a first spring fixedly connected to the upper wall of the inner cavity of the fixed cylinder, one end of the first spring is fixedly connected to the push plate, and the fixed cylinder is used to accommodate the first spring.

[0011] Preferably, a handle is installed on the upper end surface of the push plate, strong ferromagnets are installed on both sides of the upper end surface of the push plate, adsorption grooves are opened on both sides of the upper wall of the inner cavity of the mounting frame, and the strong ferromagnets are adsorbed and fixed to the adsorption grooves.

[0012] Preferably, two sliding grooves are provided on the upper end surface of the support block, and the inner cavities of the two sliding grooves are fixedly connected to limiting columns, the limiting columns are slidably connected to a stop block on the outside, a second spring is fixedly connected to one side of the stop block, one end of the second spring is fixedly connected to the inner wall of the sliding groove, an adjusting sleeve is slidably provided on the outside of the sliding column, and a fastening bolt is connected to the external internal thread of the adjusting sleeve for adjusting the position outside the sliding column.

[0013] Preferably, an intermittent material return assembly is provided in the inner cavity of the mounting frame, and the intermittent material return assembly includes a first rotating shaft and a second rotating shaft rotating on the two walls of the inner cavity of the mounting frame, two rotating blocks are fixedly connected to the outside of the first rotating shaft, three rotating blocks are fixedly connected to the outside of the second rotating shaft, and the rotating blocks outside the first rotating shaft and the rotating blocks outside the second rotating shaft are staggered, which are used to support the solar silicon wafers and drive the solar silicon wafers to intermittently discharge the materials.

[0014] Preferably, two limiting grooves are provided on one side of the inner cavity of the mounting frame, one end of the first rotating shaft passes through the mounting frame and is located in the inner cavity of the limiting groove and is fixedly connected to a first gear, one end of the second rotating shaft passes through the mounting frame and is located in the inner cavity of the limiting groove and is fixedly connected to a second gear, and the first gear and the second gear are both meshed and connected with a rack, and the rack is slidably connected in the inner cavity of the limiting groove, for driving the first gear and the second gear to rotate.

[0015] Preferably, the two limit groove inner cavities are fixedly connected with fixed columns, and the rack is slidably connected to the fixed columns, the upper end of the rack is fixedly connected with a third spring, one end of the third spring is fixedly connected to the upper wall of the limit groove, and one side of the rack is fixedly connected with a slider, and the slider is located at one end of the inner cavity of the mounting frame and is arranged in a semicircular arc shape.

[0016] Preferably, two conveyor belts are arranged in the inner cavity of the support frame, and a material return conveying assembly is arranged at both ends of each conveyor belt, and the material return conveying assembly includes a plurality of rotating grooves opened inside the conveyor belt, and the inner cavity of the rotating groove is rotatably connected with a rotating shaft, and both ends of the rotating shaft pass through the conveyor belt and are fixed with material taking blocks, which are used to push the solar silicon wafers in the unloading assembly for conveying and loading.

[0017] Preferably, the rotating shaft is located outside the inner cavity of the rotating groove and is fixedly connected to a fixed disk, one end of the fixed disk is fixedly connected to a torsion spring, and one end of the torsion spring is fixedly connected to the inner wall of the rotating groove.

[0018] Preferably, a material guide bracket is installed on the upper end of the support frame, and the inner cavity of the material guide bracket is evenly provided with limit plates, and one end of the material guide bracket is inserted into the inner cavity of the support frame to guide the solar silicon wafers into the material guide bracket.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. A material discharging device for solar cell production described in the present invention drives the material discharging block to move by driving the conveyor belt, and when the material discharging block moves to the slider, it pushes the slider to move upward, and at the same time drives the rack to slide upward in the inner cavity of the limiting groove, and then the rack meshes and rotates the first gear and the second gear to rotate, and at the same time drives the first rotating shaft and the second rotating shaft to rotate, and the rotating block outside the first rotating shaft and the rotating block outside the second rotating shaft are staggered, and then during the rotation of the first rotating shaft and the second rotating shaft, the rotating block will be driven to flip downward, and then the solar silicon wafer at the second rotating shaft will fall onto the rotating block of the first rotating shaft, and the solar silicon wafer at the first rotating shaft will fall onto the supporting block, thereby achieving intermittent material discharging efficiency of the solar silicon wafer, and preventing the solar silicon wafer from rubbing against another solar silicon wafer above when the material discharging block pushes the solar silicon wafer on the supporting block, causing scratches on the surface of the solar silicon wafer, affecting the subsequent power generation efficiency of the solar cell.

[0021] 2. The unloading device for solar cell production described in the present invention, after the conveyor belt drives the material taking block to disengage the abutment with the sliding block, the third spring is used to push the rack to move downward, and at the same time the rack meshes to drive the first gear and the second gear to rotate, and the first gear and the second gear drive the first rotating shaft and the second rotating shaft to rotate, and then the first rotating shaft and the second rotating shaft drive the rotating block to reset to limit the solar silicon wafer, and at this time the conveyor belt drives the material taking block to move, and makes the material taking block abut the solar silicon wafer to transport and feed it to the infrared welding equipment, thereby solving the problem that the existing loading device for solar cell production is inconvenient to control the discharge and unloading amount of solar silicon wafers during the processing and preparation of solar cells, resulting in the situation that multiple solar silicon wafers are stacked when the conveyor belt drives the solar silicon wafers to the welding station for feeding, and multiple solar silicon wafers are stacked, which easily causes surface friction of the solar silicon wafers to affect the power generation efficiency of the solar cells in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 It is a schematic diagram of the structure of the main view of the present invention as a whole;

[0024] Figure 2 This is a schematic diagram of the splicing of solar silicon wafers of the present invention;

[0025] Figure 3 It is a schematic diagram of the assembly structure of the mounting frame of the present invention;

[0026] Figure 4 It is a schematic diagram of the internal structure of a partial cross section of the mounting frame of the present invention;

[0027] Figure 5 It is a schematic diagram of the overall structure of the rack installation of the present invention;

[0028] Figure 6 It is a schematic diagram of the assembly structure of the material guide bracket of the present invention;

[0029] Figure 7 It is a schematic diagram of the internal structure of a half-section conveyor belt of the present invention;

[0030] Figure 8 It is a schematic diagram of the overall structure of the conveyor belt of the present invention;

[0031] In the figure: 1, bracket; 2, installation box; 3, box cover; 4, material guide bracket; 5, installation frame;

[0032] 6. Material removal assembly; 61. Fixed cylinder; 62. Sliding column; 63. First spring; 64. Push plate; 65. Strong magnetic magnet; 66. Adsorption groove; 67. Handle;

[0033] 7. Conveyor belt; 8. Solar silicon wafer; 9. Support block; 10. Slide; 11. Limiting column; 12. Second spring; 13. Stop block; 14. Adjusting sleeve; 15. Rotating groove; 16. Rotating shaft; 17. Fixed plate; 18. Material taking block; 19. Torsion spring; 20. Limiting plate; 21. Infrared welding equipment; 22. Transmission roller; 23. Support frame; 24. Limiting strip; 25. First rotating shaft; 26. Second rotating shaft; 27. Rotating block; 28. First gear; 29. ​​Second gear; 30. Rack; 31. Sliding block; 32. Fixed column; 33. Third spring; 34. Limiting groove. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0035] Embodiment 1

[0036] like Figures 1 to 8 As shown, a material unloading device for solar cell production described in an embodiment of the present invention comprises a bracket 1 and a support frame 23 installed at the upper end of the bracket 1, a driving roller 22 installed in the inner cavity of the support frame 23, and a conveyor belt 7 arranged outside the driving roller 22, and an infrared welding device 21 is installed on one side of the upper end of the support frame 23, a mounting box 2 is installed on one side of the upper end surface of the support frame 23, a box cover 3 is rotatably arranged in the upper end of the mounting box 2, the infrared welding device 21 is assembled in the inner cavity of the mounting box 2, and a plurality of welding ports are opened at the bottom of the inner cavity of the mounting box 2, a mounting frame 5 is installed on one side of the upper end of the support frame 23, and a material unloading component 6 is arranged in the inner cavity of the mounting frame 5;

[0037] The unloading assembly 6 includes two fixed cylinders 61 installed at the upper end of the mounting frame 5, and the inner cavities of the two fixed cylinders 61 are both installed with sliding columns 62, and the outer portions of the sliding columns 62 are slidably connected to the push plates 64, and the outer portions of the two sliding columns 62 are both slidably connected to the support blocks 9, and the space between the support blocks 9 and the push plates 64 is used to install and place the solar silicon wafers 8;

[0038] The pushing plate 64 is used to press and push the solar silicon wafer 8 , and the two supporting blocks 9 are used to support the two ends of the solar silicon wafer 8 . The limiting strips 24 are symmetrically arranged on the two walls of the inner cavity of the mounting frame 5 .

[0039] Specifically, in the prior art, a robot arm is usually used to use a suction cup to hold the solar silicon wafer and transport it to a welding station for unloading. After the solar silicon wafer is transported to the welding station, an operator is required to splice multiple solar silicon wafers and then weld them using welding equipment to form a whole solar power generation panel. However, this unloading method is not only inefficient, but also has a high failure rate of the robot arm, and is prone to collision, thereby affecting the production efficiency of solar cells.

[0040] When the present invention processes and prepares solar cells, the stacked solar silicon wafers 8 are placed between the pushing plate 64 and the support block 9, and then the driving roller 22 is started to drive the conveyor belt 7 to rotate. After the conveyor belt 7 rotates to the bottom of the support block 9, the solar silicon wafers 8 located above the support block 9 are taken out of the mounting frame 5, and the solar silicon wafers 8 located at the upper part of the inner cavity of the mounting frame 5 are limited by the limiting strips 24 to prevent them from slipping out of the inner cavity of the mounting frame 5. Then, the solar silicon wafers 8 are driven by the conveyor belt 7 to move into the inner cavity of the mounting box 2. After the solar silicon wafers 8 on the support block 9 are taken out, the pushing plate 64 uses gravity to push The solar silicon wafer 8 falls onto the support block 9 again, and the conveyor belt 7 is used to bring out the solar silicon wafer 8 for loading. An infrared welding device 21 is provided in the inner cavity of the installation box 2, and a welding port is provided at the bottom of the inner cavity of the installation box 2. After a plurality of solar silicon wafers 8 are conveyed to the bottom of the installation box 2, the infrared welding device 21 is started to weld the plurality of solar silicon wafers 8 into a whole through the welding port, thereby avoiding the existing production of solar cells, which usually involves operators docking a plurality of solar silicon wafers and then welding them into a whole. This not only causes cumbersome operations, but also affects the production and preparation efficiency of solar cells.

[0041] like Figure 1 , Figure 3 and Figure 4 As shown, the blanking assembly 6 also includes a first spring 63 fixedly connected to the upper wall of the inner cavity of the fixed cylinder 61 , one end of the first spring 63 is fixedly connected to the push plate 64 , and the fixed cylinder 61 is used to accommodate the first spring 63 .

[0042] like Figure 1 , Figure 3 and Figure 4 As shown, a handle 67 is installed on the upper end surface of the push plate 64, and strong ferromagnets 65 are installed on both sides of the upper end surface of the push plate 64. Adsorption grooves 66 are opened on both sides of the upper wall of the inner cavity of the mounting frame 5, and the strong ferromagnets 65 are adsorbed and fixed to the adsorption grooves 66.

[0043] Specifically, when installing the solar silicon wafer 8, the push plate 64 is pulled upward by holding the handle 67, and the push plate 64 squeezes the first spring 63 to enter the inner cavity of the fixed tube 61 for storage. At the same time, the push plate 64 drives the strong ferromagnet 65 to be inserted into the adsorption groove 66 for adsorption and fixation, and then the stacked solar silicon wafer 8 is placed between the support block 9 and the push plate 64. At the same time, the strong ferromagnet 65 is separated from the adsorption groove 66, and the first spring 63 is used to bounce the push plate 64 to slide downward on the outside of the slide column 62, thereby pressing the solar silicon wafer 8 to achieve the effect of automatic unloading, and then cooperate with the conveyor belt 7 to realize automatic loading during solar cell processing, thereby improving the production and processing efficiency of solar cells.

[0044] like Figure 1 , Figure 3 and Figure 4 As shown, two slide grooves 10 are provided on the upper end surface of the support block 9, and the inner cavities of the two slide grooves 10 are fixedly connected to the limiting columns 11, the limiting columns 11 are slidably connected to the outside with a stop block 13, one side of the stop block 13 is fixedly connected to the second spring 12, one end of the second spring 12 is fixedly connected to the inner wall of the slide groove 10, an adjusting sleeve 14 is slidably provided on the outside of the slide column 62, and the external internal thread of the adjusting sleeve 14 is connected to a fastening bolt for adjusting the position outside the slide column 62.

[0045] Specifically, when loading the solar silicon wafer 8, the solar silicon wafer 8 is placed on the support block 9, and then the solar silicon wafer 8 is made to slide between the two stop blocks 13, and the stop blocks 13 slide outside the limiting column 11 and squeeze the second spring 12, so as to limit the two ends of the solar silicon wafer 8, so that when the conveyor belt 7 pushes the solar silicon wafer 8 for loading, it can ensure that the solar silicon wafer 8 slides out from above the support block 9 smoothly, and when loading different solar silicon wafers 8, the adjustment sleeve 14 is loosened by twisting the fastening bolt, and the position of the adjustment sleeve 14 outside the limiting column 11 is moved at the same time, and then the position of the support block 9 is limited by the adjustment sleeve 14, so that the support block 9 and the conveyor belt 7 are on the same horizontal line, so as to improve the conveyor belt 7 to better push the solar silicon wafer 8 on the support block 9.

[0046] like Figure 3 , Figure 4 and Figure 5 As shown, an intermittent material unloading assembly is provided in the inner cavity of the mounting frame 5, and the intermittent material unloading assembly includes a first rotating shaft 25 and a second rotating shaft 26 rotating on the two walls of the inner cavity of the mounting frame 5, two rotating blocks 27 are fixedly connected to the outside of the first rotating shaft 25, and three rotating blocks 27 are fixedly connected to the outside of the second rotating shaft 26, and the rotating blocks 27 outside the first rotating shaft 25 and the rotating blocks 27 outside the second rotating shaft 26 are staggered, which are used to support the solar silicon wafer 8 and drive the solar silicon wafer 8 to discharge the material intermittently.

[0047] like Figure 3 , Figure 4 and Figure 5 As shown, two limiting grooves 34 are provided on one side of the inner cavity of the mounting frame 5, one end of the first rotating shaft 25 passes through the mounting frame 5 and is located in the inner cavity of the limiting groove 34 and is fixedly connected to the first gear 28, one end of the second rotating shaft 26 passes through the mounting frame 5 and is located in the inner cavity of the limiting groove 34 and is fixedly connected to the second gear 29, and the first gear 28 and the second gear 29 are both meshed and connected with a rack 30, and the rack 30 is slidably connected in the inner cavity of the limiting groove 34, for driving the first gear 28 and the second gear 29 to rotate.

[0048] Embodiment 2

[0049] like Figure 3 , Figure 4 and Figure 5 As shown, the inner cavities of the two limit grooves 34 are fixedly connected with fixed columns 32, and the rack 30 is slidably connected to the fixed columns 32, the upper end of the rack 30 is fixedly connected with a third spring 33, one end of the third spring 33 is fixedly connected to the upper wall of the limit groove 34, and a slider 31 is fixedly connected to one side of the rack 30, and the slider 31 is located at one end of the inner cavity of the mounting frame 5 and is arranged in a semicircular arc shape.

[0050] Specifically, when the solar silicon wafer 8 is loaded, the conveyor belt 7 is driven to rotate by starting the driving roller 22, and the conveyor belt 7 drives the material taking block 18 to move synchronously. When the material taking block 18 moves to the slider 31, the slider 31 is located in the inner cavity of the mounting frame 5 and moves in a semicircular arc shape, so that the material taking block 18 abuts against the semicircular arc of the slider 31, thereby pushing the slider 31 to move upward, and at the same time, the slider 31 drives the rack 30 to slide in the inner cavity of the limiting groove 34 and move upward, and then the rack 30 meshes and rotates the first gear 28 and the second gear 29, and at the same time, the first gear The wheel 28 and the second gear 29 drive the first rotating shaft 25 and the second rotating shaft 26 to rotate, and the rotating block 27 outside the first rotating shaft 25 is staggered with the rotating block 27 outside the second rotating shaft 26, and then during the rotation of the first rotating shaft 25 and the second rotating shaft 26, the rotating block 27 will be driven to flip downward, so that the solar silicon wafer 8 at the second rotating shaft 26 falls onto the rotating block 27 of the first rotating shaft 25, and the solar silicon wafer 8 at the first rotating shaft 25 will fall onto the supporting block 9, thereby achieving the intermittent unloading efficiency of the solar silicon wafer 8 and preventing the material taking block 18 from being too far on the pushing supporting block 9. When the solar silicon wafer 8 is moved, the solar silicon wafer 8 rubs against another solar silicon wafer 8 above, causing scratches on the surface of the solar silicon wafer 8, which affects the power generation efficiency of the subsequent solar cells. After the conveyor belt 7 drives the material taking block 18 to disengage from the abutment with the slider 31, the third spring 33 is used to push the rack 30 to move downward, and at the same time, the rack 30 meshes with the first gear 28 and the second gear 29 to rotate, and the first gear 28 and the second gear 29 drive the first rotating shaft 25 and the second rotating shaft 26 to rotate, and then the first rotating shaft 25 and the second rotating shaft 26 drive the rotating block 27 to return to the solar The solar silicon wafer 8 is limited in position, and at this time the conveyor belt 7 drives the material taking block 18 to move, and makes the material taking block 18 abut against the solar silicon wafer 8 to convey and feed the material to the infrared welding equipment 21, thereby solving the problem that when the existing feeding device for solar cell production is processing and preparing solar cells, it is inconvenient to control the discharge amount of solar silicon wafers, resulting in the conveyor belt 7 driving the solar silicon wafers to feed to the welding station. When multiple solar silicon wafers are stacked, it is easy to cause surface friction of the solar silicon wafers, which affects the power generation efficiency of the solar cells in the later stage.

[0051] like Figure 1 , Figure 6 and Figure 7As shown, two conveyor belts 7 are arranged in the inner cavity of the support frame 23, and a material return conveying assembly is arranged at both ends of each conveyor belt 7. The material return conveying assembly includes a plurality of rotating grooves 15 opened inside the conveyor belt 7. The inner cavity of the rotating groove 15 is rotatably connected to a rotating shaft 16. Both ends of the rotating shaft 16 pass through the conveyor belt 7 and are fixed with material taking blocks 18 for pushing the solar silicon wafers 8 in the unloading assembly 6 for conveying and loading.

[0052] like Figure 6 , Figure 7 and Figure 8 As shown, the rotating shaft 16 is located outside the inner cavity of the rotating groove 15 and is fixedly connected to a fixed disk 17 . One end of the fixed disk 17 is fixedly connected to a torsion spring 19 . One end of the torsion spring 19 is fixedly connected to the inner wall of the rotating groove 15 .

[0053] like Figure 1 , Figure 6 and Figure 7 As shown, a material guide bracket 4 is installed on the upper end of the support frame 23, and a limit plate 20 is evenly arranged in the inner cavity of the material guide bracket 4. One end of the material guide bracket 4 is inserted into the inner cavity of the support frame 23 to guide the solar silicon wafer 8 into the material guide bracket 4.

[0054] Specifically, after the conveyor belt 7 drives the material taking block 18 to push the solar silicon wafer 8 to move onto the material guide bracket 4, the material taking block 18 will abut against one end of the limit plate 20, so that the material taking block 18 drives the rotating shaft 16 to rotate, and at the same time the rotating shaft 16 drives the fixed plate 17 to rotate, and then twists the torsion spring 19 for storage, and the solar silicon wafer 8 pushed onto the material guide bracket 4 will abut against the solar silicon wafer 8 on the material guide bracket 4, so that it moves into the inner cavity of the installation box 2, and then the infrared welding equipment 21 is started to emit infrared energy through the welding port, so that the solar silicon wafer joint absorbs the infrared energy and enters a deeper position of the workpiece through heat conduction, so that the welding material is melted for welding, thereby improving the rapid splicing and welding work of the solar cell power generation part and improving the production efficiency of solar cells.

[0055] Working principle: when processing and preparing solar cells, the stacked solar silicon wafers 8 are placed between the push plate 64 and the support block 9, and then the transmission roller 22 is started to drive the conveyor belt 7 to rotate. After the conveyor belt 7 rotates to the bottom of the support block 9, the solar silicon wafers 8 located above the support block 9 will be taken out of the mounting frame 5, and the solar silicon wafers 8 located at the upper part of the inner cavity of the mounting frame 5 will be limited by the limit strip 24 to prevent them from slipping out of the inner cavity of the mounting frame 5, and then the solar silicon wafers 8 are driven to move by the conveyor belt 7. To the inner cavity of the installation box 2, and after the solar silicon wafer 8 on the support block 9 is taken out, the push plate 64 will use gravity to push the solar silicon wafer 8 to fall onto the support block 9 again, and at the same time, the solar silicon wafer 8 is taken out by the conveyor belt 7 again for loading, and an infrared welding device 21 is provided in the inner cavity of the installation box 2, and a welding port is opened at the bottom of the inner cavity of the installation box 2, and then after multiple solar silicon wafers 8 are transported to the bottom of the installation box 2, the infrared welding device 21 is started to weld the multiple solar silicon wafers 8 through the welding port to form a whole;

[0056] When the solar silicon wafer 8 is loaded, the conveyor belt 7 is driven to rotate by starting the transmission roller 22, and the conveyor belt 7 drives the material taking block 18 to move synchronously. When the material taking block 18 moves to the slider 31, the slider 31 is located in the inner cavity of the mounting frame 5 and moves in a semicircular arc shape, so that the material taking block 18 abuts against the semicircular arc of the slider 31, thereby pushing the slider 31 to move upward. At the same time, the slider 31 drives the rack 30 to slide in the inner cavity of the limiting groove 34 and move upward, and then the rack 30 meshes and rotates the first gear 28 and the second gear 29 to rotate. At the same time, the first gear 28 and the second gear 29 drive the first rotating shaft 25 and the second rotating shaft 26 to rotate, and the rotating block 27 outside the first rotating shaft 25 and the rotating block 27 outside the second rotating shaft 26 are staggered. In the process of the rotation of the first rotating shaft 25 and the second rotating shaft 26, the rotating block 27 will be driven to flip downward, so that the solar silicon wafer 8 at the second rotating shaft 26 falls to the first rotating shaft 25. The solar silicon wafer 8 at the first rotating shaft 25 will fall onto the supporting block 9, thereby achieving intermittent unloading efficiency of the solar silicon wafer 8, preventing the solar silicon wafer 8 from rubbing against another solar silicon wafer 8 above when the material taking block 18 pushes the solar silicon wafer 8 on the supporting block 9, causing scratches on the surface of the solar silicon wafer 8, affecting the subsequent power generation efficiency of the solar cell, and after the conveyor belt 7 drives the material taking block 18 to disengage from the abutment with the slider 31, the third spring 33 is used to push the rack 30 to move downward, and at the same time, the rack 30 meshes with the first gear 28 and the second gear 29 to rotate, and the first gear 28 and the second gear 29 drive the first rotating shaft 25 and the second rotating shaft 26 to rotate, and then the first rotating shaft 25 and the second rotating shaft 26 drive the rotating block 27 to reset the limit of the solar silicon wafer 8, and at this time, the conveyor belt 7 drives the material taking block 18 to move, and makes the material taking block 18 abut against the solar silicon wafer 8 to transport and feed to the infrared welding equipment 21;

[0057] After the conveyor belt 7 drives the material taking block 18 to push the solar silicon wafer 8 to move onto the material guide bracket 4, the material taking block 18 will abut against one end of the limit plate 20, so that the material taking block 18 drives the rotating shaft 16 to rotate, and at the same time the rotating shaft 16 drives the fixed plate 17 to rotate, and then twists the torsion spring 19 for storage, and the solar silicon wafer 8 pushed onto the material guide bracket 4 will abut against the solar silicon wafer 8 on the material guide bracket 4, so that it moves into the inner cavity of the installation box 2, and then the infrared welding equipment 21 is started to emit infrared energy through the welding port, so that the solar silicon wafer joint absorbs the infrared energy and enters a deeper position of the workpiece through heat conduction, so that the welding material is melted for welding, thereby improving the rapid splicing and welding work of the solar cell power generation part and improving the production efficiency of solar cells.

[0058] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A material unloading device for solar cell production, comprising a bracket (1) and a support frame (23) mounted on the upper end of the bracket (1), a driving roller (22) mounted in the inner cavity of the support frame (23) and a conveyor belt (7) arranged outside the driving roller (22), and an infrared welding device (21) is installed on one side of the upper end of the support frame (23), characterized in that: An installation box (2) is installed on one side of the upper end surface of the support frame (23), a box cover (3) is rotatably arranged in the upper end of the installation box (2), the infrared welding device (21) is assembled in the inner cavity of the installation box (2), and a plurality of welding ports are opened at the bottom of the inner cavity of the installation box (2), a mounting frame (5) is installed on one side of the upper end of the support frame (23), and a material discharge assembly (6) is arranged in the inner cavity of the mounting frame (5); The unloading assembly (6) comprises two fixed cylinders (61) mounted on the upper end of the mounting frame (5), and the inner cavities of the two fixed cylinders (61) are both mounted with sliding columns (62), the outside of the sliding columns (62) is slidably connected to a push plate (64), the outside of the two sliding columns (62) is both slidably connected to a support block (9), and the space between the support block (9) and the push plate (64) is used to mount and place the solar silicon wafer (8); The pushing plate (64) is used to press and push the solar silicon wafer (8), and the two supporting blocks (9) are used to support the two ends of the solar silicon wafer (8), and the limiting strips (24) are symmetrically arranged on the two walls of the inner cavity of the mounting frame (5).

2. A material unloading device for solar cell production according to claim 1, characterized in that: The blanking assembly (6) further comprises a first spring (63) fixedly connected to the upper wall of the inner cavity of the fixed cylinder (61), one end of the first spring (63) being fixedly connected to the pushing plate (64), and the fixed cylinder (61) is used to accommodate the first spring (63).

3. A material unloading device for solar cell production according to claim 2, characterized in that: A handle (67) is installed on the upper end surface of the push plate (64), and strong magnetic magnets (65) are installed on both sides of the upper end surface of the push plate (64). Adsorption grooves (66) are opened on both sides of the upper wall of the inner cavity of the mounting frame (5), and the strong magnetic magnets (65) are adsorbed and fixed to the adsorption grooves (66).

4. The unloading device for solar cell production according to claim 1, characterized in that: The upper end surface of the support block (9) is provided with two slide grooves (10), and the inner cavities of the two slide grooves (10) are fixedly connected to the limiting columns (11), and the limiting columns (11) are slidably connected to the outside of the limiting columns (11) with a stop block (13), and one side of the stop block (13) is fixedly connected to a second spring (12), and one end of the second spring (12) is fixedly connected to the inner wall of the slide groove (10), and the outside of the slide column (62) is slidably provided with an adjustment sleeve (14), and the external internal thread of the adjustment sleeve (14) is connected to a fastening bolt for adjusting the position outside the slide column (62).

5. The unloading device for solar cell production according to claim 1, characterized in that: The inner cavity of the mounting frame (5) is provided with an intermittent material-removing assembly, and the intermittent material-removing assembly comprises a first rotating shaft (25) and a second rotating shaft (26) rotating on two walls of the inner cavity of the mounting frame (5), the first rotating shaft (25) is fixedly connected to two rotating blocks (27) on the outside, the second rotating shaft (26) is fixedly connected to three rotating blocks (27) on the outside, and the rotating blocks (27) on the outside of the first rotating shaft (25) and the rotating blocks (27) on the outside of the second rotating shaft (26) are staggeredly arranged, and are used to support the solar silicon wafers (8) and drive the solar silicon wafers (8) to discharge materials intermittently.

6. A material unloading device for solar cell production according to claim 5, characterized in that: Two limiting grooves (34) are provided on one side of the inner cavity of the mounting frame (5); one end of the first rotating shaft (25) passes through the mounting frame (5) and is located in the inner cavity of the limiting groove (34) and is fixedly connected with a first gear (28); one end of the second rotating shaft (26) passes through the mounting frame (5) and is located in the inner cavity of the limiting groove (34) and is fixedly connected with a second gear (29); the first gear (28) and the second gear (29) are both meshedly connected with a rack (30); the rack (30) is slidably connected in the inner cavity of the limiting groove (34) and is used to drive the first gear (28) and the second gear (29) to rotate.

7. A material unloading device for solar cell production according to claim 6, characterized in that: The inner cavities of the two limiting grooves (34) are both fixedly connected with a fixing column (32), and the rack (30) is slidably connected to the fixing column (32), the upper end of the rack (30) is fixedly connected with a third spring (33), one end of the third spring (33) is fixedly connected to the upper wall of the limiting groove (34), and one side of the rack (30) is fixedly connected with a sliding block (31), and the sliding block (31) is located at one end of the inner cavity of the mounting frame (5) and is arranged in a semicircular arc shape.

8. The unloading device for solar cell production according to claim 1, characterized in that: Two conveyor belts (7) are arranged in the inner cavity of the support frame (23), and a material return conveying assembly is arranged in both ends of each conveyor belt (7), and the material return conveying assembly includes a plurality of rotating grooves (15) opened in the conveyor belt (7), and the inner cavity of the rotating groove (15) is rotatably connected to a rotating shaft (16), and both ends of the rotating shaft (16) pass through the conveyor belt (7) and are fixedly connected with a material taking block (18) for pushing the solar silicon wafer (8) in the unloading assembly (6) for conveying and loading.

9. A material unloading device for solar cell production according to claim 8, characterized in that: The rotating shaft (16) is located outside the inner cavity of the rotating groove (15) and is fixedly connected to a fixed disk (17). One end of the fixed disk (17) is fixedly connected to a torsion spring (19). One end of the torsion spring (19) is fixedly connected to the inner wall of the rotating groove (15).

10. The unloading device for solar cell production according to claim 1, characterized in that: A material guide bracket (4) is installed at the upper end of the support frame (23), and a limit plate (20) is evenly arranged in the inner cavity of the material guide bracket (4). One end of the material guide bracket (4) is inserted into the inner cavity of the support frame (23) to guide the solar silicon wafer (8) onto the material guide bracket (4).

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