A photovoltaic cell blanking and stacking mechanism

Abstract

The present application relates to the technical field of stacking equipment, and specifically discloses a photovoltaic cell unloading and stacking mechanism, which comprises a transfer arm and a stacking frame arranged on the transfer arm, a conveying belt is arranged at the transfer arm, a suction device is arranged on the stacking frame, the suction device comprises a suction disc and a suction assembly, an extrusion device is arranged on the stacking frame, the extrusion device comprises an extrusion plate, an elastic member one and a limiting column, one end of the elastic member one is connected with the extrusion plate, and the other end is connected with the stacking frame, in the initial state, the elastic member one drives the extrusion plate to be arranged vertically, the stacking frame drives the extrusion plate to descend, and after reaching the conveying belt below, the stacking frame continues to descend, the conveying belt drives the extrusion plate to rotate and rotate to the limiting column and stop rotating, meanwhile, the extrusion plate extrudes the conveying belt, the conveying belt is deformed, and there is a ventilation gap between the conveying belt and the cell; the photovoltaic cell unloading and stacking mechanism has the effect of improving the quality of cell stacking.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stacking equipment, in particular to a photovoltaic cell unloading and stacking mechanism. BACKGROUND

[0002] The battery piece is generally divided into single crystal silicon, polycrystalline silicon and amorphous silicon, wherein the single crystal silicon solar cell is the fastest developed solar cell at present, its structure and production process has been finalized, and the product is mainly used for space and ground. This solar cell uses high-purity single crystal silicon rod as raw material, in order to reduce the production cost, the solar cell used for ground application usually uses solar-grade single crystal silicon rod at present, the material performance index is relaxed, and the head and tail materials and waste secondary single crystal silicon materials processed by semiconductor devices can also be used, which are re-drawn into single crystal silicon rods special for solar cells.

[0003] Among them, the unloading and stacking mechanism is needed for processing photovoltaic cells in the processing process, and the unloading and stacking of photovoltaic cells is the key link between cell manufacturing (coating, etching, annealing) and component packaging. The core goal is to complete the transformation of the battery piece from continuous production flow to batch stacking under the premise of no damage, no pollution and high precision, and to provide qualified blanks for subsequent string welding and laminating processes.

[0004] A battery piece pushing device and a battery piece conveying system are disclosed in Chinese patent document CN211310058U. The battery piece pushing device comprises a supporting plate provided with a supporting portion on the side of the battery piece conveying belt, and the supporting portion is provided with a suction hole for connecting a suction pipeline to enable the battery piece to be adsorbed. A horizontal moving component is provided to move relative to the fixed frame along the conveying direction of the battery piece conveying belt, and the horizontal moving component is cooperatively arranged with the supporting plate so that the movement of the horizontal moving component can drive the supporting plate to move. A horizontal moving driving mechanism is used to drive the horizontal moving component to move. A lifting driving mechanism is used to drive the supporting plate to lift relative to the horizontal moving component. After the lifting driving mechanism drives the supporting plate to rise, the supporting surface of the supporting portion is higher than the conveying surface of the battery piece conveying belt, so as to lift the battery piece on the battery piece conveying belt and separate it from the battery piece conveying belt. The battery piece pushing device further comprises a slide rail assembly arranged between the horizontal moving component and the fixed frame. A roller is further arranged on the horizontal moving component to roll relative to the fixed frame along the conveying direction of the battery piece conveying belt. The slide rail assembly and the roller are arranged on both sides of the horizontal moving component in the width direction of the battery piece conveying belt. The horizontal moving component is arranged at the bottom of the supporting plate. A cooperation structure is arranged between the bottom of the supporting plate and the horizontal moving component to cooperate the supporting plate with the horizontal moving component, so that the horizontal moving component can drive the supporting plate to move. The cooperation structure comprises a limiting groove arranged on one of the bottom of the supporting plate and the horizontal moving component, and a limiting portion arranged on the other one to cooperate with the limiting groove. A lifting guide structure is arranged between the supporting plate and the horizontal moving component. The lifting guide structure is a linear bearing arranged between the supporting plate and the horizontal moving component. The supporting portion on the supporting plate comprises a first supporting portion, a second supporting portion and a middle supporting portion between the first supporting portion and the second supporting portion. Avoidance recesses are formed between the first supporting portion and the middle supporting portion, and between the second supporting portion and the middle supporting portion, to avoid two parallel battery piece conveying belts. The horizontal moving driving mechanism is a horizontal moving cylinder with a driving end connected to the horizontal moving component. The lifting driving mechanism is a lifting cylinder with a cylinder body mounted on the horizontal moving component and a driving end connected to the supporting plate.

[0005] In operation, firstly, the battery piece pushing device is installed so that each support portion on the supporting plate is located at the side of the battery piece conveying belt, the first support portion, the second support portion and the intermediate support portion on the supporting plate are located at the side of the battery piece conveying belt, and the two battery piece conveying belts extend in the avoiding recesses between the first support portion and the intermediate support portion and between the second support portion and the intermediate support portion, respectively. When the battery conveying belt normally conveys the battery piece, the lifting driving mechanism drives the supporting plate so that each support portion is flush with or lower than the conveying belt (usually set to be lower than the conveying belt), and when the battery piece needs to be pushed, the lifting driving mechanism drives the supporting plate to rise, the top surface of each support portion is higher than the surface of the battery conveying belt, so that the support portion can lift the battery piece on the battery piece conveying belt and adsorb it, the battery piece is adsorbed on the support portion through the adsorption hole, and stable pushing can be realized; the transverse driving mechanism drives the transverse component to move along the conveying direction of the battery piece conveying belt, the transverse component moves while pushing the supporting plate to move, after the transverse component moves to the piece placing position, the lifting driving mechanism drives the supporting plate to descend, and the battery piece is placed on the piece placing position on the conveying belt, and then the transverse driving mechanism drives the transverse component to move back to the original position.

[0006] In the above technology, when the battery piece is conveyed, the battery piece and the conveying belt are attached together, air in the middle is easily discharged to form "micro vacuum", so that the battery piece and the conveying belt are adsorbed together, when the battery piece is lifted by the support portion and adsorbed, the battery piece is easily damaged. SUMMARY

[0007] The present application provides a photovoltaic cell piece unloading and stacking mechanism, which aims to solve the technical problem that in the prior art, when the battery piece is conveyed, the battery piece and the conveying belt are attached together, air in the middle is easily discharged to form "micro vacuum", so that the battery piece and the conveying belt are adsorbed together, when the battery piece is lifted by the support portion and adsorbed, the battery piece is easily damaged.

[0008] The utility model discloses a photovoltaic cell blanking and stacking mechanism, including the transfer arm and setting on the transfer arm's stacking frame, the stacking frame is along the vertical direction and is slippedly fitted in the transfer arm, be provided with the conveying belt for conveying cell piece at the transfer arm, be provided with the adsorption device on the stacking frame, the adsorption device includes the suction cup for the cell piece is adsorbed and is used for providing the adsorption force of adsorption assembly to the suction cup, be provided with the extrusion device on the stacking frame, the extrusion device includes the extrusion plate of rotation and is fitted on the stacking frame, is used for the elastic piece no. 1 of driving extrusion plate rotation reset and is used for the rotation of extrusion plate is located the limit post, the elastic piece no. 1 one end is connected with extrusion plate, the other end is connected with the stacking frame, the initial state, the elastic piece no. 1 drives extrusion plate vertical setting, the stacking frame drives extrusion plate to drop, and after reaching the conveying belt below, the stacking frame continues to drop, and the conveying belt pushes the rotation of extrusion plate, and rotates to the limit post place no longer rotates, and simultaneously extrusion plate extrudes the conveying belt, and the conveying belt is deformed, and there is the ventilation gap between the conveying belt and cell piece.

[0009] Beneficial effect: through the setting of extrusion device, when cell piece is processed, the conveying belt is conveyed to cell piece, and then the stacking frame drives the adsorption device to move above cell piece, at this time, the conveying belt no longer rotates, then the stacking frame drives the extrusion plate to drop, and after reaching the conveying belt below, the stacking frame drives the extrusion plate to continue to drop, and the extrusion plate contacts the conveying belt, and the conveying belt can push the rotation of extrusion plate, and the elastic piece no. 1 is compressed, when the extrusion plate rotates to the limit post place no longer rotates, and simultaneously extrusion plate will extrude the conveying belt, so that the conveying belt is deformed, at this time, air can enter between the conveying belt and cell piece, and the adsorption force between cell piece and the conveying belt is small, then the cell piece is adsorbed by the suction cup and is transferred and stacked, which can reduce the phenomenon that cell piece is damaged, and when the transfer arm drives the stacking frame to rotate, the cell piece can be transferred, and the cell piece is stacked on the cell piece above the cell piece, and the extrusion plate contacts the cell piece below, and the cell piece is pushed, so that the cell piece is more neat when stacking, and the stacking effect of cell piece is improved.

[0010] Preferably, the side of the extrusion plate close to the cell piece is provided with a gas supply groove, and the extrusion plate is provided with a gas blowing device for supplying air into the gas supply groove.

[0011] Beneficial effect: through the setting of the gas blowing device, the gas blowing device blows air into the gas supply groove, and the air is blown into the gap between the conveying belt and the cell plate through the gas supply groove, so as to further reduce the adsorption force between the cell piece and the conveying belt, and further reduce the phenomenon that the cell piece is damaged.

[0012] Preferably, the gas blowing device comprises a gas supply pipe in communication with the gas supply groove and a gas supply assembly for supplying air into the gas supply pipe, and the gas supply pipe is arranged on the extrusion plate.

[0013] Beneficial effects: By setting up the gas supply pipe and gas supply components, the gas is supplied to the gas supply pipe through the gas supply components, and the gas can be transported out through the gas supply slot and transported between the conveyor belt and the battery cells.

[0014] Preferably, the extrusion plate includes a rotating part rotatably fitted on the stacking frame and a clamping part for clamping the lower surface of the battery cell, the clamping part being disposed on the rotating part.

[0015] Beneficial effects: With the setting of the rotating part and the clamping part, when the extrusion plate moves away from the conveyor belt, the conveyor belt no longer squeezes the extrusion plate. At this time, the elastic element releases its elastic restoring force, which can drive the extrusion plate to rotate and reset. The rotating part drives the clamping part to rotate and abut against the lower surface of the battery cell, supporting the battery cell and realizing stable transfer of the battery cell.

[0016] Preferably, the extrusion plate has an inclined surface on the side near the battery cell, and an arc-shaped surface at the bottom end of the extrusion plate.

[0017] Preferably, the bottom end of the extrusion plate is rotatably fitted with an abutment roller.

[0018] Preferably, the suction cup includes a fixed part disposed on the palletizing frame and a flexible part disposed at the bottom end of the fixed part, and the palletizing frame is provided with a clamping device for pressing the flexible part.

[0019] Beneficial effects: With the flexible part and the pressing device, when the flexible part comes into contact with the battery cell, it will be squeezed and deformed by the battery cell and bend outward. Then the pressing device presses the flexible part, thereby making the contact between the flexible part and the battery cell more sufficient and improving the adsorption stability between the suction cup and the battery cell.

[0020] Preferably, the clamping device includes a clamping sleeve for clamping the flexible part and an elastic element II for pushing the clamping sleeve down. The clamping sleeve is sleeved on the fixed part, and the bottom end of the clamping sleeve is adapted to the flexible part. One end of the elastic element II is connected to the clamping sleeve.

[0021] Preferably, the adsorption assembly includes an adsorption tube communicating with the fixing part and an adsorption element for providing adsorption force to the suction cup, wherein the adsorption tube is connected to the fixing part.

[0022] Preferably, the palletizing rack is provided with an adjustment device, which includes a fixed rod disposed on the palletizing rack, a sliding sleeve slidably engaged with the fixed rod, and a driver for driving the sliding sleeve to slide, wherein the fixed part is disposed on the sliding sleeve.

[0023] Beneficial effects: By adjusting the settings of the device and activating the driver, the sliding sleeve can be moved to slide on the fixed rod, thereby moving the suction cup. The suction cup can slide relative to the battery cell, thus adsorbing the battery cell at multiple locations. At the same time, when the suction cup is large, the sliding sleeve can move the suction cup to avoid the risk that the bottom of the suction cup cannot make complete contact with the battery cell.

[0024] The beneficial effects of this invention are as follows:

[0025] 1. In this invention, by setting up an extrusion device, during the processing of battery cells, the battery cells are transported by a conveyor belt. At the same time, the stacking frame drives the adsorption device to move above the battery cells. At this point, the conveyor belt stops rotating. Then, the stacking frame drives the extrusion plate to descend. After reaching the conveyor belt below, the stacking frame drives the extrusion plate to continue descending. The extrusion plate contacts the conveyor belt, and the conveyor belt can push the extrusion plate to rotate, compressing the elastic element. When the extrusion plate rotates to the limit post and stops rotating, the extrusion plate will squeeze the conveyor belt, causing the conveyor belt to deform. At this time, there is an air gap between the conveyor belt and the battery cells, and air can enter between the conveyor belt and the battery cells. The adsorption force between the battery cells and the conveyor belt is small. Then, the battery cells are adsorbed by the suction cup and transferred and stacked, which can reduce the phenomenon of damage to the battery cells. At the same time, when the transfer arm drives the stacking frame to rotate, it can transfer the battery cells. When the battery cells are unloaded and stacked above the stacked battery cells, the extrusion plate contacts the battery cells below it and pushes the battery cells, making the battery cells stacked more neatly and improving the stacking effect of the battery cells.

[0026] 2. In this invention, by setting up an air blowing device, the air blowing device blows air into the air supply groove, and blows air into the gap between the conveyor belt and the battery panel through the air supply groove, thereby further reducing the adsorption force between the battery cell and the conveyor belt, and further reducing the phenomenon of damage to the battery cell.

[0027] 3. In this invention, by setting up the rotating part and the clamping part, when the extrusion plate moves away from the conveyor belt, the conveyor belt no longer extrudes the extrusion plate. At this time, the elastic element releases its elastic restoring force, which can drive the extrusion plate to rotate and reset. The rotating part drives the clamping part to rotate and abut against the lower surface of the battery cell to support the battery cell and achieve stable transfer of the battery cell.

[0028] 4. In this invention, by setting up a flexible part and a pressing device, when the flexible part comes into contact with the battery cell, it will be squeezed and deformed by the battery cell and bend outward. Then the pressing device presses the flexible part, thereby making the contact between the flexible part and the battery cell more sufficient and improving the adsorption stability between the suction cup and the battery cell.

[0029] 5. In this invention, by adjusting the device and activating the driver, the sliding sleeve can slide on the fixed rod, thereby driving the suction cup to slide. The suction cup can slide relative to the battery cell, thus adsorbing the battery cell at multiple locations. At the same time, when the suction cup is large, the sliding sleeve can drive the suction cup to move, avoiding the risk that the bottom of the suction cup cannot fully contact the battery cell. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0031] Figure 2 This is a structural schematic diagram illustrating the connection relationship between the palletizing rack and the adjustment device according to the present invention.

[0032] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0033] Figure 4 This is a partial cross-sectional view illustrating the connection between the extrusion plate and the palletizing rack in this invention.

[0034] Figure 5 yes Figure 4 A magnified view of a section at point B.

[0035] Figure 6 This is a partial schematic diagram illustrating the connection relationship between the extrusion plate and the air blowing device according to the present invention.

[0036] Figure 7 yes Figure 6 A magnified view of a section at point C.

[0037] Figure 8 This is a schematic diagram illustrating the structure of the extrusion plate of the present invention.

[0038] Figure label:

[0039] 1. Transfer arm; 2. Palletizing rack; 3. Adsorption device; 31. Suction cup; 311. Fixing part; 312. Flexible part; 32. Adsorption assembly; 321. Adsorption tube; 4. Extrusion device; 41. Extrusion plate; 411. Air supply groove; 412. Rotating part; 413. Clamping part; 414. Inclined surface; 415. Arc-shaped surface; 42. Elastic element one; 43. Limiting post; 5. Air blowing device; 51. Air supply pipe; 6. Abutment roller; 7. Pressing device; 71. Pressing sleeve; 72. Elastic element two; 8. Adjustment device; 81. Fixing rod; 82. Sliding sleeve; 83. Driver. Detailed Implementation

[0040] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0041] Reference Figures 1-8 The present invention discloses a photovoltaic cell unloading and stacking mechanism, comprising a transfer arm 1, a stacking frame 2 disposed on the transfer arm 1, and an adsorption device 3 disposed on the stacking frame 2. The stacking frame 2 is slidably fitted to the transfer arm 1 in a vertical direction. A hydraulic cylinder is fixedly installed on the transfer arm 1, the cylinder body of the hydraulic cylinder is fixedly connected to the transfer arm 1, and the piston rod of the hydraulic cylinder is fixedly connected to the stacking frame 2. A conveyor belt (not shown in the figure) for conveying the cells is provided at the transfer arm 1. A drive assembly is provided at the conveyor belt, the drive assembly including a conveyor roller for driving the conveyor belt to rotate and a drive motor for driving the conveyor roller to rotate. The drive motor drives the conveyor roller to rotate, and the conveyor roller drives the conveyor belt to rotate, thereby conveying the cells on the conveyor belt. The adsorption device 3 is used to adsorb the cells on the conveyor belt. When processing battery cells for unloading and stacking, multiple battery cells are first placed on a conveyor belt at intervals. The conveyor belt transports the battery cells while the transfer arm 1 rotates, driving the stacking frame 2 and the adsorption device 3 to rotate and move above the battery cells. Then, the conveyor belt stops rotating, the hydraulic cylinder operates, and the stacking frame 2 and the adsorption device 3 descend. After the adsorption device 3 comes into contact with the battery cell, it adsorbs the battery cell. Then, the hydraulic cylinder drives the stacking frame 2, the adsorption device 3, and the battery cell to rise. At this time, the conveyor belt continues to rotate, transporting the remaining battery cells. After the adsorption device 3 moves the battery cell away from the conveyor belt, the transfer arm 1 rotates, driving the battery cell to rotate and placing the battery cell at the unloading and stacking position. Then, the transfer arm 1 rotates, and the stacking frame 2 and the adsorption device 3 adsorb and stack the subsequent battery cells. This process is repeated to achieve continuous stacking of multiple battery cells.

[0042] Reference Figure 3 , Figure 4 and Figure 6 The adsorption device 3 includes a suction cup 31 for adsorbing the battery cells and an adsorption assembly 32 for providing adsorption force to the suction cup 31. The suction cup 31 includes a fixing part 311 disposed on the stacking rack 2 and a flexible part 312 fixedly disposed at the bottom end of the fixing part 311. The top of the fixing part 311 is cylindrical and the bottom of the fixing part 311 is trumpet-shaped. The fixing part 311 is made of hard rubber material, and the flexible part 312 is made of flexible rubber material. In the initial state, the flexible part 312 is trumpet-shaped. After the bottom of the flexible part 312 is squeezed, the flexible part 312 can bend outward and be horizontally disposed (its state is as follows). Figure 6(As shown in the figure) The adsorption assembly 32 includes an adsorption tube 321 connected to the fixing part 311 and an adsorption element (not shown in the figure) for providing adsorption force to the suction cup 31. The adsorption tube 321 is fixedly connected to the top of the fixing part 311, and the adsorption element can be directly a vacuum pump. When the stacking frame 2 moves the adsorption device 3 to the battery cell, the stacking frame 2 moves the suction cup 31 and the adsorption assembly 32 down. When the flexible part 312 abuts against the battery cell and continues to descend, the battery cell can squeeze the flexible part 312, causing the flexible part 312 to bend and adhere to the upper surface of the battery cell. Then the adsorption element is activated, and the battery cell is adsorbed through the adsorption tube 321, the fixing part 311 and the flexible part 312. When it is not necessary to adsorb the battery cell, the adsorption element is turned off, so that the fixing part 311 and the flexible part 312 no longer adsorb the battery cell.

[0043] Reference Figure 3 , Figure 4 and Figure 6 The palletizing rack 2 is equipped with an adjustment device 8, which is used to adjust the position of the suction cup 31. The adjustment device 8 includes a fixed rod 81 fixedly mounted on the palletizing rack 2, a sliding sleeve 82 that slides along the length of the battery cell and is engaged with the fixed rod 81, and a driver 83 for driving the sliding sleeve 82 to slide. The driver 83 is directly a hydraulic cylinder. The cylinder body of the driver 83 is fixedly connected to the sliding sleeve 82, and the piston rod of the driver 83 is fixedly connected to the fixed rod 81. The fixing part 311 is fixedly mounted on the sliding sleeve 82. When the driver 83 is activated, the driver 83 can drive the sliding sleeve 82 to slide along the fixed rod 81, thereby driving the suction cup 31 and the adsorption assembly 32 to slide along the length of the battery cell.

[0044] Reference Figure 4 , Figure 6 and Figure 7 The palletizing rack 2 is equipped with a clamping device 7 for pressing the flexible part 312. The clamping device 7 includes a clamping sleeve 71 for pressing the flexible part 312 and an elastic element 72 for pushing the clamping sleeve 71 down. The clamping sleeve 71 is sleeved on the fixed part 311, and the bottom end of the clamping sleeve 71 is adapted to the flexible part 312. The elastic element 72 is sleeved on the top of the clamping sleeve 71. The elastic element 72 is directly a spring, and one end of the elastic element 72 is fixedly connected to the sliding sleeve 82. The other end of the second component 72 is fixedly connected to the clamping sleeve 71. In the initial state, there is a small gap between the lower surface of the clamping sleeve 71 and the upper surface of the bent flexible part 312, so that when the flexible part 312 is bent and attached to the battery cell, it can make way when the flexible part 312 is deformed by the pressure of the texture on the battery cell. When the flexible part 312 is attached to the upper surface of the battery cell, the lower surface of the clamping sleeve 71 is attached to the upper surface of the bent flexible part 312, and the flexible part 312 is clamped.

[0045] Reference Figure 4 , Figure 5 and Figure 8 The palletizing frame 2 is equipped with a pressing device 4, which is used to push the conveyor belt to deform. The pressing device 4 includes a pressing plate 41 rotatably fitted on the palletizing frame 2, an elastic element 42 for driving the pressing plate 41 to rotate and reset, and a limiting post 43 for limiting the rotation of the pressing plate 41. The pressing plate 41 is a hollow structure. The pressing plate 41 includes a rotating part 412 rotatably fitted on the palletizing frame 2 and a clamping part 413 for clamping the lower surface of the battery cell. The clamping part 413 is set on the rotating part 412. The side of the pressing plate 41 near the battery cell is provided with an inclined surface 414. The bottom end of the pressing plate 41 is provided with an arc-shaped surface 415. The clamping part 413 of the pressing plate 41 is provided with an air supply groove 411 on the side near the battery cell. The air supply groove 411 is a rectangular groove. The bottom end of the pressing plate 41 is rotatably fitted with an abutment roller 6.

[0046] Reference Figure 3 , Figure 4 and Figure 5 The elastic element 42 is directly a spiral spring. One end of the elastic element 42 is fixedly connected to the extrusion plate 41, and the other end is fixedly connected to the stacking frame 2. The limiting post 43 is fixedly set on the stacking frame 2. In the initial state, the elastic element 42 drives the extrusion plate 41 to be set vertically. The stacking frame 2 drives the extrusion plate 41 to descend. After reaching the conveyor belt below, the stacking frame 2 continues to descend, driving the extrusion plate 41 and the abutment roller 6 to descend. The conveyor belt can push the extrusion plate 41 to rotate. When one side of the extrusion plate 41 rotates to the limiting post 43 and stops rotating, the bottom end of the extrusion plate 41 can... The conveyor belt is squeezed, and at this time the squeezing plate 41 is located on the conveyor belt at a position where no conveyor roller is installed, so that the conveyor belt can deform. There is an air gap between the conveyor belt and the battery cell, and air can enter between the conveyor belt and the battery cell. When the squeezing plate 41 moves away from the conveyor belt, the conveyor belt elastically resets, and at the same time the conveyor belt no longer squeezes the squeezing plate 41. The elastic element 42 releases its elastic restoring force, which drives the squeezing plate 41 to rotate and reset. The squeezing plate 41 drives the abutment roller 6 to rotate, and at the same time the clamping part 413 can rotate to the lower surface of the battery cell and support the lower surface of the battery cell.

[0047] Reference Figure 3 , Figure 4 and Figure 6The extrusion plate 41 is provided with an air blowing device 5 for supplying air to the air supply groove 411. The air blowing device 5 includes an air supply pipe 51 connected to the air supply groove 411 and an air supply component for supplying air to the air supply pipe 51. The air supply pipe 51 is fixedly installed on one side of the extrusion plate 41. The air supply component can be directly an air supply pump. When the air supply component is working, it can supply air to the extrusion plate 41 through the air supply pipe 51. The gas is transported out through the air supply groove 411 and quickly reaches the space between the conveyor belt and the battery cell.

[0048] The implementation principle of the photovoltaic cell unloading and stacking mechanism of the present invention is as follows: When unloading and stacking the cells, the driver 83 is started first. The driver 83 can drive the sliding sleeve 82 to slide along the fixed rod 81, and then drive the suction cup 31 and the adsorption component 32 to slide along the length direction of the cell, thereby adjusting the position of the suction cup 31 and the adsorption component 32.

[0049] After adjustment, multiple battery cells are placed on the conveyor belt at intervals. The drive motor is started to drive the conveyor roller to rotate. The conveyor roller drives the conveyor belt to rotate, thereby conveying the battery cells on the conveyor belt. At the same time, the transfer arm 1 rotates, driving the palletizing frame 2 and the adsorption device 3 to rotate and rotate above the battery cells. Then the conveyor belt stops rotating, the hydraulic cylinder works, and drives the palletizing frame 2, the adsorption device 3 and the extrusion device 4 to descend.

[0050] When the palletizing frame 2 drives the extrusion plate 41 down to the conveyor belt, the abutment roller 6 abuts against the conveyor belt. As the extrusion plate 41 drives the abutment roller 6 to continue to descend, the conveyor belt will squeeze the abutment roller 6, and then squeeze the extrusion plate 41. The extrusion plate 41 can rotate and compress the elastic element 42. When the extrusion plate 41 rotates to the limit post 43, the extrusion plate 41 can no longer rotate and squeezes the conveyor belt, causing the conveyor belt to deform in the direction away from the extrusion plate 41. At this time, the air supply component works and can supply air into the extrusion plate 41 through the air supply pipe 51. The gas is transported out through the air supply groove 411 and quickly reaches between the conveyor belt and the battery cell, so that the adsorption force between the conveyor belt and the battery cell is small, which can reduce the phenomenon of damage during the subsequent transfer of battery cells.

[0051] At the same time, when the palletizing rack 2 descends, it can drive the suction cup 31 to descend, and the flexible part 312 abuts against the battery cell. The battery cell can squeeze the flexible part 312, causing the flexible part 312 to bend and adhere to the upper surface of the battery cell. At this time, the lower surface of the pressing sleeve 71 adheres to the upper surface of the bent flexible part 312, pressing the flexible part 312. Then the adsorption component is activated, and the battery cell is adsorbed through the adsorption tube 321, the fixing part 311 and the flexible part 312. At this time, the pressing plate 41 is located on one side of the battery cell.

[0052] After the suction cup 31 adsorbs the battery cell, the hydraulic cylinder drives the stacking frame 2, the adsorption device 3 and the battery cell to rise. At this time, the conveyor belt continues to rotate to transport the remaining battery cells. When the extrusion plate 41 moves away from the conveyor belt, the conveyor belt performs elastic reset and stops pressing the extrusion plate 41. The elastic element 42 releases its elastic restoring force, which drives the extrusion plate 41 to rotate and reset. The extrusion plate 41 drives the abutment roller 6 to rotate, and at the same time, the clamping part 413 can rotate to the lower surface of the battery cell and support the lower surface of the battery cell.

[0053] When the suction cup 31 moves the battery cell away from the conveyor belt, the transfer arm 1 rotates, causing the battery cell to rotate and rotate to the unloading and stacking position. The hydraulic cylinder works, causing the stacking frame 2, the suction device 3, and the battery cell to descend. When the battery cell is unloaded and stacked above the stacked battery cells, the abutment roller 6 on the extrusion plate 41 contacts the battery cell below it and pushes the battery cell below it. As the extrusion plate 41 descends, it pushes the battery cell through the arc surface 415 and the inclined surface 414, making the battery cell stack more neat in the vertical direction and improving the stacking effect of the battery cell. At the same time, as the extrusion plate 41 descends, the battery cell below it will squeeze the extrusion plate 41, causing the extrusion plate 41 to rotate away from the battery cell. When the extrusion plate 41 rotates to the limit post 43, the extrusion plate 41 stops rotating, the extrusion plate 41 no longer supports the battery cell at the suction cup 31, and the extrusion plate 41 no longer pushes the battery cell below it.

[0054] Subsequently, when the battery cell at suction cup 31 descends to the stacked battery cell location, the suction device is closed, so that the fixed part 311 and the flexible part 312 no longer suction the battery cell, completing the unloading and stacking of the battery cell. Then, the transfer arm 1 rotates, and the subsequent battery cells are suctioned and stacked through the stacking frame 2 and the suction device 3. This process is repeated to achieve continuous stacking of multiple battery cells.

[0055] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A photovoltaic cell unloading and stacking mechanism, comprising a transfer arm (1) and a stacking frame (2) disposed on the transfer arm (1), wherein the stacking frame (2) is slidably coupled to the transfer arm (1) in a vertical direction, and a conveyor belt for conveying the cells is disposed at the transfer arm (1), characterized in that, The palletizing rack (2) is equipped with an adsorption device (3), which includes a suction cup (31) for adsorbing the battery cells and an adsorption assembly (32) for providing adsorption force to the suction cup (31). The palletizing rack (2) is also equipped with a pressing device (4), which includes a pressing plate (41) rotatably fitted on the palletizing rack (2), an elastic element (42) for driving the pressing plate (41) to rotate and reset, and a limiting post (43) for limiting the rotation of the pressing plate (41). One end of the elastic element (42) is connected to the extrusion plate (41), and the other end is connected to the stacking frame (2). In the initial state, the elastic element (42) drives the extrusion plate (41) to be set vertically. The stacking frame (2) drives the extrusion plate (41) to descend. After reaching the conveyor belt below, the stacking frame (2) continues to descend. The conveyor belt pushes the extrusion plate (41) to rotate and rotates to the limit post (43) and stops rotating. At the same time, the extrusion plate (41) squeezes the conveyor belt, the conveyor belt deforms, and there is a ventilation gap between the conveyor belt and the battery cell.

2. The photovoltaic cell unloading and stacking mechanism according to claim 1, characterized in that, The extrusion plate (41) has an air supply groove (411) on the side near the battery cell, and the extrusion plate (41) is provided with an air blowing device (5) for supplying air into the air supply groove (411).

3. The photovoltaic cell unloading and stacking mechanism according to claim 2, characterized in that, The air blowing device (5) includes an air supply pipe (51) communicating with the air supply groove (411) and an air supply component for supplying air into the air supply pipe (51), the air supply pipe (51) being disposed on the extrusion plate (41).

4. The photovoltaic cell unloading and stacking mechanism according to claim 1, characterized in that, The extrusion plate (41) includes a rotating part (412) rotatably fitted on the stacking frame (2) and a clamping part (413) for clamping the lower surface of the battery cell, the clamping part (413) being disposed on the rotating part (412).

5. The photovoltaic cell unloading and stacking mechanism according to claim 1, characterized in that, The extrusion plate (41) has an inclined surface (414) on the side near the battery cell, and an arc-shaped surface (415) is provided at the bottom end of the extrusion plate (41).

6. The photovoltaic cell unloading and stacking mechanism according to claim 1, characterized in that, The bottom end of the extrusion plate (41) is rotatably fitted with an abutment roller (6).

7. The photovoltaic cell unloading and stacking mechanism according to claim 1, characterized in that, The suction cup (31) includes a fixed part (311) disposed on the palletizing frame (2) and a flexible part (312) disposed at the bottom end of the fixed part (311). The palletizing frame (2) is provided with a pressing device (7) for pressing the flexible part (312).

8. A photovoltaic cell unloading and stacking mechanism according to claim 7, characterized in that, The clamping device (7) includes a clamping sleeve (71) for clamping the flexible part (312) and an elastic element (72) for pushing the clamping sleeve (71) down. The clamping sleeve (71) is sleeved on the fixed part (311), and the bottom end of the clamping sleeve (71) is adapted to the flexible part (312). One end of the elastic element (72) is connected to the clamping sleeve (71).

9. A photovoltaic cell unloading and stacking mechanism according to claim 7, characterized in that, The adsorption assembly (32) includes an adsorption tube (321) communicating with the fixing part (311) and an adsorption element for providing adsorption force to the suction cup (31), wherein the adsorption tube (321) is connected to the fixing part (311).

10. A photovoltaic cell unloading and stacking mechanism according to claim 7, characterized in that, The palletizing rack (2) is provided with an adjustment device (8). The adjustment device (8) includes a fixed rod (81) provided on the palletizing rack (2), a sliding sleeve (82) slidably engaged with the fixed rod (81), and a driver (83) for driving the sliding sleeve (82) to slide. The fixed part (311) is provided on the sliding sleeve (82).

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