A buffer device for conveying solar cell pieces

Abstract

This utility model discloses a buffer device for conveying solar cells, comprising: a feeding unit; a first track-changing storage unit, including a first conveying flow line and a first lateral transport mechanism; a buffer unit, including a front longitudinal transport unit, a multi-layer buffer assembly, and a rear longitudinal transport unit, wherein the front longitudinal transport unit is located near the end of the first conveying flow line; a second track-changing storage unit, including a second conveying flow line and a second lateral transport mechanism; and a discharging unit, located near the end of the second conveying flow line. This utility model allows solar cells to undergo track-changing and multiple cells to simultaneously enter the stationary flow line via the front longitudinal transport unit for a stationary effect. After stationary placement, multiple solar cells can be transported to the second conveying flow line via the rear longitudinal transport unit and finally discharged via the discharging unit. This extends the storage time of the solar cells between the feeding unit and the discharging unit, thus achieving the effect of buffering the solar cells.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic equipment, specifically a buffer device for conveying solar cells. Background Technology

[0002] The manufacturing process of solar cells involves printing, drying, testing, and sorting. This process requires transport between different devices. Current structures typically use direct transport, employing a buffer device between the infeed and outfeed units to achieve this buffering effect. This existing buffer device lifts the cells vertically along the path from the infeed to the outfeed unit. When unloading, the lifted cells are lowered and transported backward, meaning the first buffered cells are unloaded last. The buffering time varies for each cell. Furthermore, the number of cells in each buffer layer matches the number transported in the infeed and outfeed units, resulting in insufficient buffer capacity. This only provides a temporary buffering effect, requiring immediate unloading after buffering. It cannot achieve the continuous feeding of cells from the infeed unit while maintaining a stationary state at the outfeed unit. Utility Model Content

[0003] In order to overcome the defects in the prior art, this utility model provides a buffer device for transporting solar cells, which is used to solve one or more of the above-mentioned problems.

[0004] This application discloses a buffer device for conveying solar cells, comprising: a feeding unit for conveying solar cells along a straight line; a first track-changing storage unit, the first track-changing storage unit including a plurality of first conveying streamlines arranged side by side and a first lateral conveying mechanism corresponding to the first conveying streamlines, the first conveying streamlines being adjacent to the end of the feeding unit; a buffer unit, the buffer unit including a front longitudinal conveying unit adjacent to the first track-changing storage unit, a multi-layer buffer assembly located behind the front longitudinal conveying unit, and a rear longitudinal conveying unit located behind the stationary streamlines, the front longitudinal conveying unit being adjacent to the end of the first conveying streamlines; a second track-changing storage unit, the second track-changing storage unit including a plurality of second conveying streamlines arranged side by side and a second lateral conveying mechanism corresponding to the second conveying streamlines, the second conveying streamlines being adjacent to the end of the rear longitudinal conveying unit; and a discharging unit, the discharging unit being adjacent to the end of the second conveying streamlines, the discharging unit being used for conveying the solar cells along a straight line.

[0005] Furthermore, the feeding unit includes a feeding conveyor line capable of conveying the battery cells in a straight line, a clamping mechanism located on the side of the feeding conveyor line, and a feeding sensor located at the end of the feeding conveyor line; the discharging unit includes a discharging conveyor line capable of conveying the battery cells in a straight line.

[0006] Furthermore, the first conveying flow line located at the edge is correspondingly arranged with the feeding conveying flow line. The first transverse conveying mechanism has a first transverse module extending in a parallel direction along the first conveying flow line. A first transverse plate is slidably arranged on the first transverse module. Two first lifting motors and first suction cups respectively connected to the two first lifting motors are arranged on the first transverse plate. The two first suction cups are used to lift and adsorb the battery cells on the first conveying flow line.

[0007] Furthermore, the second conveying flow line located at the edge is correspondingly arranged with the discharge conveying flow line. The second transverse conveying mechanism has a second transverse moving module extending in the parallel direction along the second conveying flow line. A second transverse moving plate is slidably arranged on the second transverse moving module. Two second lifting motors and second suction cups respectively connected to the two second lifting motors are arranged on the second transverse moving plate. The two second suction cups are used to lift and adsorb the battery cells on the second conveying flow line.

[0008] Furthermore, the front longitudinal conveying unit includes a plurality of first lifting streamlines in the parallel direction of the first conveying streamlines. Each of the plurality of first lifting streamlines has two first support portions on both sides. Each first support portion has a first longitudinal lifting module and a first linear guide shaft. The first lifting streamlines are connected to the first longitudinal lifting module and the first linear guide shaft.

[0009] Furthermore, the rear longitudinal conveying unit includes a plurality of second lifting streamlines in the parallel direction of the second conveying streamlines. Each of the plurality of second lifting streamlines has two second support portions on both sides. The second support portions have a second longitudinal lifting module and a second linear bearing. The second lifting streamlines are connected to the second longitudinal lifting module and the second linear bearing.

[0010] Furthermore, the multi-layer buffer assembly includes multiple buffer assemblies arranged longitudinally. Each buffer assembly has multiple stationary streamlines in the parallel direction of the first conveying streamline. Each buffer assembly has a corresponding driving mechanism. The driving mechanism of each buffer assembly is connected to the corresponding stationary streamline. The stationary streamline located in the lower layer has the same height as the first conveying streamline and the second conveying streamline.

[0011] Furthermore, the buffer unit also includes multiple fixed shafts extending longitudinally, the stationary streamlines are sequentially fixed on the fixed shafts longitudinally, a locking ring is installed below the connection position between the stationary streamlines and the fixed shafts, and a chip-proof plate is provided between the stationary streamlines of each layer.

[0012] Furthermore, the feeding unit includes a feeding conveyor flow line, and the discharging unit includes a discharging conveyor flow line;

[0013] The first track-changing storage unit has five first conveyor lines arranged side by side. The first conveyor line corresponding to the feeding conveyor line is driven by a separate feeding motor, and the other four first conveyor lines are driven by another feeding motor. The second track-changing storage unit has five second conveyor lines arranged side by side. The second conveyor line corresponding to the discharging conveyor line is driven by a separate discharging motor, and the other four second conveyor lines are driven by another discharging motor.

[0014] Furthermore, the multi-layer buffer component includes four layers of buffer components arranged vertically, and the number of buffer components in each layer is equal to the number of the first conveyor flow line and the second conveyor flow line.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. This allows the solar cells to change tracks during the transport process from the feeding unit to the discharging unit, with multiple cells simultaneously entering the stationary flow line via the front longitudinal transport unit to achieve a stationary effect. After stationary placement, multiple solar cells can be transported to the second conveying flow line via the rear longitudinal transport unit and finally discharged through the discharging unit. This can significantly increase the number of solar cells that can be buffered. After a single stationary flow line is full, solar cells can continue to be buffered in the next stationary flow line, thereby extending the storage time of solar cells between the feeding unit and the discharging unit, achieving the effect of stationary placement of solar cells on the stationary flow line. In addition, it can ensure that the solar cells are in the first-in, first-out process, guaranteeing that each solar cell has the same stationary time and ensuring the stability of the discharged solar cells.

[0017] 2. The feeding sensor, in conjunction with the feeding conveyor and the clamping mechanism, enables the battery cells flowing into the first conveying conveyor via the end of the feeding conveyor to have the same positioning effect, and enables the discharging unit to continue conveying the battery cells on the second conveying conveyor backward, thereby improving the efficiency and stability of the entire equipment operation.

[0018] 3. The two first suction cups lift and adsorb the battery cells that enter the first conveying line adjacent to the feeding unit one after another, and the first transverse plate slides laterally relative to the first transverse module to transfer the battery cells to each of the first conveying lines.

[0019] 4. By using the two second suction cups to lift and adsorb the battery cells located on different second conveying lines, and cooperating with the lateral sliding of the second transverse plate relative to the second transverse module, the battery cells on different second conveying lines are sequentially transferred to the edge of the second conveying line.

[0020] 5. By driving the first lifting module to move the first lifting streamline in the longitudinal direction, the first lifting streamline can reach the same height as different stationary streamlines during the longitudinal movement. Then, the battery cells on the first lifting streamline are transported backward to different stationary streamlines, thereby achieving the effect of transporting the battery cells from the first conveying streamline to stationary streamlines at different heights.

[0021] 6. By driving the second lifting module to move the second lifting streamline in the longitudinal direction, the second lifting streamline can reach the same height as the different stationary streamlines during the longitudinal movement. Then, after reaching different heights, the battery cells on the stationary streamlines at different heights are received on the second lifting streamline. Then, it moves longitudinally to the height of the second conveying streamline to convey the battery cells on it to the second conveying streamline, thereby completing the effect of conveying the battery cells from the stationary streamlines at different heights to the second conveying streamline.

[0022] To make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of a buffer device for conveying solar cells according to an embodiment of the present invention;

[0025] Figure 2This is a schematic diagram of the structure of the cache unit in an embodiment of this utility model;

[0026] Figure 3 This is a schematic diagram of the feeding unit in an embodiment of this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the first conveying streamline in an embodiment of this utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the first transverse conveying mechanism in an embodiment of this utility model;

[0029] Figure 6 This is a schematic diagram of the front longitudinal conveying unit in an embodiment of this utility model;

[0030] Figure 7 This is a schematic diagram of the structure of the cache component in an embodiment of this utility model;

[0031] The reference numerals in the above figures are as follows: 1. Feeding unit; 11. Feeding conveyor flow line; 12. Clamping mechanism; 13. Feeding sensor; 2. First track-changing storage unit; 21. First conveying flow line; 22. First lateral transport mechanism; 221. First lateral movement module; 222. First lateral movement plate; 223. First lifting motor; 224. First suction cup; 3. Buffer unit; 31. Front longitudinal transport unit; 311. First lifting flow line; 312. First support part; 313. First longitudinal lifting module; 314. First linear guide shaft; 32. Buffer assembly; 321. Stationary flow line; 322. Drive mechanism; 33. Rear longitudinal transport unit; 34. Fixed shaft; 35. Locking ring; 36. Chip guard plate; 4. Second track-changing storage unit; 5. Discharge unit. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] like Figures 1 to 7 As shown, a buffer device for conveying solar cells according to this embodiment includes:

[0034] Feeding unit 1 is used to convey battery cells in a straight line. Feeding unit 1 is used to convey battery cells backward, so that the battery cells on feeding unit 1 can be changed track via the first track changing storage unit 2.

[0035] The first track-changing storage unit 2 includes multiple first conveying lines 21 arranged side by side and a first lateral conveying mechanism 22 corresponding to the first conveying lines 21. The first conveying lines 21 are close to the end of the feeding unit 1, so that the battery cells on the feeding unit 1 can enter the front end of the first conveying line 21 through the end of the feeding unit 1. The first lateral conveying mechanism 22 is used to transport the battery cells entering the first conveying line 21 from the feeding unit 1 to all the first conveying lines 21, and the first conveying lines 21 simultaneously transport multiple battery cells to the buffer unit 3, thereby increasing the number of battery cells buffered in the buffer unit 3 at the same time.

[0036] The buffer unit 3 includes a front longitudinal transport unit 31 adjacent to the first track-changing storage unit 2, a multi-layer buffer assembly 32 located behind the front longitudinal transport unit 31, and a rear longitudinal transport unit 33 located behind the stationary flow line 321. The front longitudinal transport unit 31 is adjacent to the end of the first transport flow line 21, so that the battery cells on the first transport flow line 21 can enter the front end of the front longitudinal transport unit 31 via the end of the first transport flow line 21, so that the battery cells on the first transport flow line 21 can be transported to the front longitudinal transport unit 31. The front longitudinal transport unit 31 can move the battery cells on it longitudinally, thereby transporting the battery cells to the stationary flow lines 321 of each layer. The stationary flow lines 321 are used to transport the battery cells backward. The front longitudinal transport unit 31 continuously transports battery cells to the same layer of stationary flow lines 321. After the battery cells on the same layer of stationary flow lines 321 are full, the front longitudinal transport unit 31 transports battery cells to the next layer of stationary flow lines 321, thus completing the buffering effect of the battery cells. The rear longitudinal transport unit 33 can then transport the battery cells on the stationary flow lines 321 to the subsequent second track-changing storage unit 4.

[0037] The second track-changing storage unit 4 includes multiple parallel second conveyor lines and a second lateral conveying mechanism corresponding to each second conveyor line. The second conveyor lines are located near the end of the rear longitudinal conveying unit 33, allowing the solar cells on the rear longitudinal conveying unit 33 to enter the front of the second conveyor line via the end of the rear longitudinal conveying unit 33, thus enabling the solar cells on the rear longitudinal conveying unit 33 to be conveyed to the second conveyor line. The second lateral conveying mechanism is used to change the track of the solar cells on the second conveyor line to facilitate their conveyance to the subsequent discharge unit 5.

[0038] The discharge unit 5 is located near the end of the second conveying flow line. The discharge unit 5 is used to convey the battery cells in a straight line. The discharge unit 5 is used to convey the battery cells after the second transverse conveying mechanism has changed track in a straight line to the next stage.

[0039] In this embodiment, during the process of conveying the battery cells from the feeding unit 1 to the discharging unit 5, they can be transported via the first transverse conveying mechanism 22 to multiple first conveying lines 21, and then conveyed from the first conveying lines 21 to the stationary conveying line 321 via the front longitudinal conveying unit 31 to achieve a stationary buffering effect. The battery cells in the stationary conveying line 321 can be conveyed via the rear longitudinal conveying unit 33, then conveyed to the second conveying line, and finally conveyed via the second transverse conveying mechanism to the discharging unit 5 to achieve the discharging effect.

[0040] With the above structure, the solar cells can change course during the process of being conveyed from the feeding unit 1 to the discharging unit 5, and multiple cells can simultaneously enter the stationary flow line 321 via the front longitudinal transport unit 31 to achieve a stationary effect. After stationary placement, multiple solar cells can be transported to the second conveying flow line via the rear longitudinal transport unit 33 and finally discharged through the discharging unit 5. This can multiply the number of solar cells that can be buffered. After a single stationary flow line 321 is full, the solar cells can continue to be buffered in the next stationary flow line 321, thereby extending the storage time of the solar cells between the feeding unit 1 and the discharging unit 5, so as to achieve the effect of stationary solar cells on the stationary flow line 321. In addition, the solar cells can be made first-in, first-out, ensuring that each solar cell has the same stationary time and ensuring the stability of the discharged solar cells.

[0041] Specifically, such as Figure 3 As shown, the feeding unit 1 includes a feeding conveyor line 11 for conveying the battery cells in a straight line, a clamping mechanism 12 located on the side of the feeding conveyor line 11, and a feeding sensor 13 located at the end of the feeding conveyor line 11. The feeding conveyor line 11 is used to convey the battery cells in a straight line. The clamping mechanism 12 is used to clamp and position the battery cells on the feeding conveyor line 11, so that each battery cell has the same positioning effect after being clamped by the clamping mechanism 12. The feeding sensor 13 is used to identify the position of the battery cells and provide a clamping signal to the clamping mechanism 12. The discharging unit 5 includes a discharging conveyor line for conveying the battery cells in a straight line.

[0042] In this embodiment, the battery cell is conveyed forward on the feeding conveyor 11. When it reaches the end of the feeding conveyor 11, it is sensed by the feeding sensor 13. The feeding sensor 13 transmits an electrical signal to the feeding conveyor 11 and the clamping mechanism 12, respectively, so that the feeding conveyor 11 stops conveying and the clamping mechanism 12 clamps and positions the battery cell. After positioning, the battery cell is conveyed to the subsequent first conveyor 21. The discharge unit 5 is used to receive the battery cell on the second conveyor 21 and convey it to the subsequent workstation.

[0043] With the above structure, the feed sensor 13, in conjunction with the feed conveyor 11 and the clamping mechanism 12, enables the battery cells flowing into the first conveyor 21 via the end of the feed conveyor 11 to have the same positioning effect, and enables the discharge unit 5 to continue conveying the battery cells on the second conveyor 21 backward, thereby improving the efficiency and stability of the entire equipment operation.

[0044] Specifically, such as Figure 4 and Figure 5 As shown, on a conveyor line 21, the first lateral conveying mechanism 22 has a first lateral moving module 221 extending in a parallel direction along the first conveyor line 21. The first lateral moving module 221 can laterally move and transport the battery cells located on the edge of the first conveyor line 21 to the remaining sections of the first conveyor line 21. A first lateral moving plate 222 is slidably disposed on the first lateral moving module 221. The first lateral moving plate 222 is provided with two first lifting motors 223 and first suction cups 224 respectively connected to the two first lifting motors 223. The two first suction cups 224 are used to lift and adsorb the battery cells on the first conveyor line 21. Thus, by sliding the first transverse plate 222 relative to the first transverse module 221, the two first lifting motors 223 and the two first suction cups 224 can move synchronously in the transverse direction. In the longitudinal direction, the two first lifting motors 223 drive the two first suction cups 224 respectively, so that the two first suction cups 224 can move relative to each other in the longitudinal direction. This allows the two first suction cups 224 to make adsorption contact with different batteries, so that the first suction cups 224 can sequentially transfer the battery cells onto each of the first conveying lines 21.

[0045] With the above structure, the two first suction cups 224 respectively lift and adsorb the battery cells that enter the first conveying flow line 21 adjacent to the feeding unit 1, and the first transverse plate 222 slides laterally relative to the first transverse module 221 to achieve the effect of transferring the battery cells to each of the first conveying flow lines 21.

[0046] Specifically, the second conveying flow line located at the edge is correspondingly set to the discharge conveying flow line, and then enters the discharge conveying flow line and is conveyed backward.

[0047] The second lateral conveying mechanism has a second lateral movement module extending in a parallel direction along the second conveying flow line, through which the battery cells on each of the second conveying flow lines can be moved to the edge of the second conveying flow line.

[0048] A second transverse plate is slidably mounted on the second transverse module. Two second lifting motors and two suction cups connected to the two second lifting motors are mounted on the second transverse module. The two suction cups are used to lift and adsorb the battery cells on the second conveying line. Thus, by sliding the second transverse plate relative to the second transverse module, the two second lifting motors and the two second suction cups can move synchronously in the transverse direction. In the longitudinal direction, the two second lifting motors drive the two second suction cups respectively, allowing the two second suction cups to move relative to each other in the longitudinal direction. This allows the two second suction cups to adsorb and contact different batteries, so that the second suction cups sequentially transfer the battery cells to the edge of the second conveying line. It is worth noting that the structure of the second conveying line is similar to that of the first conveying line, and the structure of the discharge conveying line is similar to that of the feed conveying line. These can also be referred to... Figure 4 and Figure 5 .

[0049] With the above structure, the two second suction cups lift and adsorb the battery cells located on different second conveying lines respectively, and the second transverse plate slides laterally relative to the second transverse module to achieve the effect of transferring the battery cells on different second conveying lines to the edge of the second conveying line in sequence.

[0050] Specifically, such as Figure 6As shown, the front longitudinal transport unit 31 includes a plurality of first lifting streamlines 311 in the parallel direction of the first conveying streamline 21, such that each first lifting streamline 311 corresponds to the first conveying streamline 21 located in front of it in the conveying direction of the battery cells. Each of the plurality of first lifting streamlines 311 has two first support portions 312 on both sides. The first support portions 312 provide support for the first lifting streamlines 311, the first longitudinal lifting module 313, and the first linear guide shaft 314, thereby making the entire front longitudinal transport unit 31 more stable. The first support portion 312 has the first longitudinal lifting module 313 and the first linear guide shaft 314. The first lifting streamline 311 is connected to the first longitudinal lifting module 313 and the first linear guide shaft 314. The first longitudinal lifting module 313 is used to move the first lifting streamline 311 longitudinally, and the first linear guide shaft 314 is used to guide the first lifting streamline 311 during its lifting process, thereby making the first lifting streamline 311 more stable during longitudinal movement. Preferably, in this embodiment, the first longitudinal lifting module 313 is a longitudinally arranged linear motor. Of course, in other optional embodiments, the actual structure of the first longitudinal lifting module 313 can be adjusted as needed.

[0051] With the above structure, the first vertical lifting module 313 drives the first lifting streamline 311 to move vertically, so that the first lifting streamline 311 can reach the same height with different stationary streamlines 321 during the vertical movement. Then, the battery cells on the first lifting streamline 311 are transported backward to different stationary streamlines 321 through the first lifting streamline 311, thereby achieving the effect of transporting the battery cells transported from the first conveying streamline 21 to stationary streamlines 321 at different heights.

[0052] Specifically, the rear longitudinal transport unit 33 includes multiple second lifting streamlines in the parallel direction of the second conveying streamlines, such that each second lifting streamline corresponds to the second conveying streamline located behind it in the conveying direction of the battery cells. Each of the multiple second lifting streamlines has two second support portions on both sides. The second support portions provide support for the second lifting streamlines, the second longitudinal lifting module, and the second linear bearing, making the entire rear longitudinal transport unit 33 more stable. The second support portions have a second longitudinal lifting module and a second linear bearing. The second lifting streamlines are connected to the second longitudinal lifting module and the second linear bearing. The second longitudinal lifting module is used to move the second lifting streamline longitudinally, and the second linear bearing acts as a guide during the lifting process of the second lifting streamline, making the second lifting streamline more stable during longitudinal movement. Preferably, in this embodiment, the second longitudinal lifting module is a longitudinally arranged linear motor. Of course, in other optional embodiments, the actual structure of the second longitudinal lifting module can be adjusted as needed. It is worth noting that the structure of the rear longitudinal transport unit is similar to that of the front longitudinal transport unit, and can also be referred to... Figure 6 .

[0053] With the above structure, the second vertical lifting module drives the second lifting streamline to move longitudinally, so that the second lifting streamline can reach the same height as the different stationary streamlines 321 during the longitudinal movement. Then, after reaching different heights, the battery cells on the stationary streamlines 321 at different heights are received on the second lifting streamline. Then, it moves longitudinally to the height of the second conveying streamline to convey the battery cells on it to the second conveying streamline, thereby completing the effect of conveying the battery cells from the stationary streamlines 321 at different heights to the second conveying streamline.

[0054] Specifically, such as Figure 7As shown, the multi-layer buffer assembly 32 includes multiple buffer assemblies 32 arranged longitudinally. Each layer of the buffer assembly 32 has multiple stationary flow lines 321 in the parallel direction of the first conveying flow line 21. Each layer of the buffer assembly 32 has a corresponding driving mechanism 322. The driving mechanism 322 of each layer of the buffer assembly 32 is connected to the corresponding stationary flow line 321, so that the driving mechanism 322 can drive the corresponding buffer assembly 32 to convey the battery cell backward. Preferably, the driving mechanism 322 is a motor. Of course, in other optional embodiments, the actual structure of the driving mechanism 322 can be adjusted according to actual needs. The stationary flow line 321 located at the lower layer has the same height as the first conveying flow line 21 and the second conveying flow line. This allows the battery cells on the first conveying flow line 21 to be directly conveyed to the stationary flow line 321 located at the lower layer when the front longitudinal transport unit 31 is at the same height as the first conveying flow line 21 during material feeding. Correspondingly, the battery cells on the stationary flow line 321 located at the lowest layer can be directly conveyed to the second conveying flow line when the rear longitudinal transport unit 33 is at the same height as the second conveying flow line. With the above structure, the battery cells can be conveyed forward by the stationary flow line 321 on each layer, so that multiple battery cells can be buffered on each stationary flow line 321, making the buffering efficiency of the entire stationary flow line 321 higher. In addition, since the adhesive is evenly distributed on the surface of the battery cells, the battery cells are placed flat on the stationary flow line 321 during buffering, avoiding the problem of the battery cells being suspended in the middle and causing the middle of the battery cells to fall, which can avoid affecting the stationary effect of the adhesive on the battery cells.

[0055] Specifically, the buffer unit 3 further includes multiple fixed shafts 34 extending longitudinally. The stationary streamlines 321 are sequentially fixed to the fixed shafts 34 longitudinally, thereby fixing the stationary streamlines 321 and making them more stable during operation. A locking ring 35 is installed below the connection point between the stationary streamlines 321 and the fixed shafts 34. The locking ring 35 provides a good fixing effect between the stationary streamlines 321 and the fixed shafts 34, preventing relative movement between them. A chip-proof plate 36 is provided between each layer of stationary streamlines 321. The chip-proof plate 36 is used to prevent debris on the battery cells of the corresponding stationary streamline 321 from affecting the battery cells of the next layer of stationary streamlines 321, improving the buffering effect of the battery cells on the stationary streamlines 321. In addition, it also facilitates the collection of debris generated on the battery cells of each layer. Preferably, the multi-layer buffer component 32 includes four layers of buffer components 32 arranged vertically, and the number of buffer components 32 in each layer is equal to the number of the first conveying flow line 21 and the second conveying flow line.

[0056] Specifically, such as Figures 1 to 7 As shown, the feeding unit 1 includes a feeding conveyor line 11, and the discharging unit 5 includes a discharging conveyor line. That is, the feeding unit 1 feeds through a single feeding conveyor line 11, and the discharging unit 5 discharges through a single discharging conveyor line.

[0057] The first track-changing storage unit 2 has five first conveying lines 21 arranged side by side. The first conveying line 21 corresponding to the feeding transmission line 11 is driven by a separate feeding motor, while the other four first conveying lines 21 are driven by another feeding motor. Since the first conveying line 21 corresponding to the feeding transmission line 11 has a larger conveying stroke than the other first conveying lines 21 during the conveying process, the above structure can save the stroke of the other four first conveying lines 21, thereby reducing energy consumption.

[0058] The second track-changing storage unit 4 has five second conveying lines arranged side by side. The second conveying line corresponding to the discharge conveying line is driven by a separate discharge motor, while the other four second conveying lines are driven by another discharge motor. Since the second conveying line corresponding to the discharge conveying line has a longer conveying stroke than the other second conveying lines during the conveying process, the above structure can save the stroke of the other four second conveying lines, thereby reducing energy consumption.

[0059] The working principle of this application will be explained in detail below with reference to embodiments:

[0060] During the buffer loading process, the battery cell is conveyed forward along the feed conveyor 11. When it reaches the end of the feed conveyor 11, it is sensed by the feed sensor 13. The feed sensor 13 transmits an electrical signal to the feed conveyor 11 and the clamping mechanism 12 respectively, so that the feed conveyor 11 stops conveying and the clamping mechanism 12 clamps and positions the battery cell. After positioning, the battery cell is conveyed to the first conveyor 21 adjacent to it.

[0061] Next, the first transverse module 221 can transversely transport the battery cells located on the edge of the first conveying flow line 21 to the remaining first conveying flow lines 21. During this process, the first transverse plate 222 drives the two first suction cups 224 to move synchronously in the transverse direction, and the two first lifting motors 223 respectively drive the corresponding first suction cups 224 to lift and adsorb, so that the two first suction cups 224 can respectively adsorb and contact different batteries, so that the first suction cups 224 sequentially transfer the battery cells to each of the first conveying flow lines 21.

[0062] Next, the battery cells on the first conveying flow line 21 are conveyed to the first lifting flow line 311 at the same height as the first conveying flow line 21. The first longitudinal lifting module 313 drives the first lifting flow line 311 to move longitudinally to the same height as the target buffer unit 3, and then the battery cells on it are conveyed into the corresponding buffer unit 3. The above steps are repeated until the corresponding buffer unit 3 is full of battery cells. Then the first lifting flow line 311 is moved to the stationary flow line 321 at other heights, thereby completing the battery loading step on the stationary flow lines 321 at different heights.

[0063] In the buffer unloading step, the second vertical lifting module drives the second lifting conveyor to move longitudinally to the same height as the target buffer unit 3. Then, the buffer unit 3 steps forward, so that the battery cells on it are stepped onto the second lifting conveyor. During the stepping interval, the second lifting conveyor moves to the same height as the second conveying conveyor and conveys the battery cells on it onto the second conveying conveyor. Then, the second lifting conveyor rises again to the target conveyor, so that the next row of battery cells flows back into the second lifting conveyor from the stationary conveyor 321. The above steps are repeated until the corresponding battery cell on the buffer unit 3 is empty. Then, the second lifting conveyor moves to the stationary conveyor 321 at a different height, thereby completing the unloading step for stationary conveyors 321 at different heights.

[0064] After the battery cells are conveyed to the second conveying line by the second lifting conveyor line, the second conveying line adjacent to the discharge conveyor line conveys the battery cells on it to the discharge conveyor line. The remaining battery cells on the second conveying lines are laterally moved and transported to the second conveyor line adjacent to the discharge conveyor line by the second lateral moving module. During this process, the second lateral moving plate drives the two second suction cups to move synchronously in the lateral direction, and the two second lifting motors drive the corresponding second suction cups to lift and adsorb, so that the two second suction cups can adsorb and contact different batteries respectively, so that the second suction cups transfer the battery cells sequentially to the second conveyor line adjacent to the discharge conveyor line, and all of them are conveyed to the subsequent work station through the discharge conveyor line.

Claims

1. A buffer device for conveying solar cells, characterized in that, include: A feeding unit, the feeding unit being used to convey battery cells in a straight line; The first track-changing storage unit includes multiple first conveyor lines arranged side by side and a first transverse conveying mechanism corresponding to the first conveyor lines. The first conveyor lines are located near the end of the feeding unit. The buffer unit includes a front longitudinal transport unit adjacent to the first track-changing storage unit, a multi-layer buffer assembly located behind the front longitudinal transport unit, and a rear longitudinal transport unit located behind the stationary flow line. The front longitudinal transport unit is adjacent to the end of the first conveying flow line. The second track-changing storage unit includes multiple second conveyor lines arranged side by side and a second transverse conveying mechanism corresponding to the second conveyor lines. The second conveyor lines are located near the end of the rear longitudinal conveying unit. The discharge unit is located near the end of the second conveyor line and is used to convey the battery cells in a straight line.

2. The buffer device for conveying solar cells according to claim 1, characterized in that, The feeding unit includes a feeding conveyor line that can transport the battery cells in a straight line, a clamping mechanism located on the side of the feeding conveyor line, and a feeding sensor located at the end of the feeding conveyor line. The discharge unit includes a discharge conveyor line capable of transporting the battery cells in a straight line.

3. The buffer device for conveying solar cells according to claim 2, characterized in that, The first conveying flow line located at the edge is correspondingly arranged with the feeding conveying flow line. The first transverse conveying mechanism has a first transverse module extending in a parallel direction along the first conveying flow line. A first transverse plate is slidably arranged on the first transverse module. Two first lifting motors and first suction cups respectively connected to the two first lifting motors are arranged on the first transverse plate. The two first suction cups are used to lift and adsorb the battery cells on the first conveying flow line.

4. A buffer device for conveying solar cells according to claim 3, characterized in that, The second conveying flow line located at the edge is correspondingly arranged with the discharge conveying flow line. The second transverse conveying mechanism has a second transverse module extending in the parallel direction along the second conveying flow line. A second transverse plate is slidably arranged on the second transverse module. Two second lifting motors and second suction cups respectively connected to the two second lifting motors are arranged on the second transverse plate. The two second suction cups are used to lift and adsorb the battery cells on the second conveying flow line.

5. A buffer device for conveying solar cells according to claim 1, characterized in that, The front longitudinal conveying unit includes a plurality of first lifting streamlines in the parallel direction of the first conveying streamlines. Each of the plurality of first lifting streamlines has two first support portions on both sides. Each first support portion has a first longitudinal lifting module and a first linear guide shaft. The first lifting streamlines are connected to the first longitudinal lifting module and the first linear guide shaft.

6. A buffer device for conveying solar cells according to claim 1, characterized in that, The rear longitudinal conveying unit includes multiple second lifting streamlines in the parallel direction of the second conveying streamlines. Each of the multiple second lifting streamlines has two second support portions on both sides. The second support portions have a second longitudinal lifting module and a second linear bearing. The second lifting streamlines are connected to the second longitudinal lifting module and the second linear bearing.

7. A buffer device for conveying solar cells according to claim 1, characterized in that, The multi-layer buffer assembly includes multiple buffer assemblies arranged longitudinally. Each buffer assembly has multiple stationary streamlines in the parallel direction of the first conveying streamline. Each buffer assembly has a corresponding driving mechanism. The driving mechanism of each buffer assembly is connected to the corresponding stationary streamline. The stationary streamline located in the lower layer has the same height as the first conveying streamline and the second conveying streamline.

8. A buffer device for conveying solar cells according to claim 7, characterized in that, The buffer unit also includes multiple fixed shafts extending longitudinally. The stationary streamlines are fixed sequentially on the fixed shafts longitudinally. A locking ring is installed below the connection position between the stationary streamlines and the fixed shafts. A chip-proof plate is provided between the stationary streamlines of each layer.

9. A buffer device for conveying solar cells according to claim 4, characterized in that, The feeding unit includes a feeding conveyor line, and the discharging unit includes a discharging conveyor line; The first track-changing storage unit has five first conveyor lines arranged side by side. The first conveyor line corresponding to the feeding conveyor line is driven by a separate feeding motor, and the other four first conveyor lines are driven by another feeding motor. The second track-changing storage unit has five second conveyor lines arranged side by side. The second conveyor line corresponding to the discharge conveyor line is driven by a separate discharge motor, while the other four second conveyor lines are driven by another discharge motor.

10. A buffer device for conveying solar cells according to claim 1, characterized in that, The multi-layer buffer component includes four layers of buffer components arranged vertically, and the number of buffer components in each layer is equal to the number of the first conveyor flow line and the second conveyor flow line.

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