Battery piece feeding device for photovoltaic string welding machine welding

Abstract

The application discloses a cell loading and feeding device for a photovoltaic string welding machine, which comprises a mounting bracket, the inside of the mounting bracket is provided with a conveyor for conveying the cell, and the top of the mounting bracket is symmetrically provided with limiting plates for limiting the cell on both sides; opposite two limiting plates are fixedly connected with connecting plates; the cell is preliminarily positioned by four limiting plates, and the push plates on four sliding rods can be synchronously moved to the side that is relatively close, so that the cell can be aligned, then the movable push-pull plate and the fixed plate below are utilized to directly convey the cell from below to the conveyor, and the cell is not taken and placed by a suction cup, a mechanical arm or the like, the position of each cell is convenient to control, and the cell is loaded by the device in the following mode, so that the damage to the peripheral surface of the cell can be avoided to a certain extent.

Description

Technical Field

[0001] This invention relates to the field of solar cell feeding technology, specifically to a solar cell feeding device for photovoltaic string welding machines. Background Technology

[0002] The cell stringer is an important piece of equipment in the production of photovoltaic modules. The stringer uses welding strips to directly weld whole cells into cell strings. The subsequent process processes the cell strings welded by the stringer into whole cell modules. Before stringing the cells, the cells stored at the cell picking station need to be placed onto the welding conveyor by the cell feeding device.

[0003] Currently, solar cells are fed into the conveyor belt using suction cups. However, the suction cups may not be precise enough when placing the cells, which can lead to misalignment during subsequent welding. If a cell happens to be placed in a positioning groove, its circumference may come into contact with the inner wall of the groove when it is removed. Since the cell is less than one centimeter thick, this could potentially cause damage. Summary of the Invention

[0004] The purpose of this invention is to provide a cell feeding device for photovoltaic string welding machines. The cell is initially positioned by four limiting plates, and the push plates on the four sliding rods can move synchronously to the side that is relatively close, thereby pushing the cell to align. Then, the cell is directly conveyed to the conveyor from below by the movable push-pull plate and the fixing plate below.

[0005] The objective of this invention can be achieved through the following technical solutions: A cell feeding device for photovoltaic string welding includes a mounting bracket. The mounting bracket houses a conveyor for transporting the cells. Symmetrical limiting plates for positioning the cells are arranged on both sides of the top of the mounting bracket. Connecting plates are fixedly connected to two opposing limiting plates. Support plates are fixedly connected to the outer surfaces of the four limiting plates. Each support plate has an opening slot at its top for placing the cells. Four limiting slots are formed inside each opening slot. A fixing sleeve is fixedly connected to the inner surface of each limiting slot. A sliding rod is slidably connected to the inner surface of each fixing sleeve. One end of the sliding rod is fixedly connected to a push plate for aligning the cells, and the other end of the sliding rod is provided with a sliding plate for limiting the push plate. Fixing plates supporting the cells are arranged within the four limiting plates. A push-pull plate for pushing the cells is positioned above the fixing plates.

[0006] As a further aspect of the present invention: the support plate is provided with a rotatable gear ring, a movable seat is fixedly connected to one side of the sliding plate, a connecting rod is rotatably connected to the inner surface of the movable seat, a rotating seat is rotatably connected to one end of the connecting rod, and one side of the rotating seat is fixedly connected to the inner surface of the gear ring.

[0007] As a further aspect of the present invention: a drive motor is fixedly connected to the bottom of the support disk, the output end of the drive motor passes through the support disk and is fixedly connected to a gear, the gear meshes with a gear ring, and a plurality of arc-shaped plates for limiting the position of the gear ring are fixedly connected to the top of the support disk.

[0008] As a further embodiment of the present invention: a mounting plate is fixedly connected to one side of the mounting bracket, and sliding sleeves are fixedly connected to both sides of the top of the mounting plate. The inner surface of the sliding sleeve is slidably connected to the surface of the push-pull plate. A push-pull groove is provided through the top of the push-pull plate, and a drop groove is provided on one side of the fixed plate.

[0009] As a further embodiment of the present invention: a plurality of gear teeth are fixedly connected to the bottom of the push-pull plate, a servo motor is fixedly connected to one side of the mounting plate, a drive gear is fixedly connected to the output end of the servo motor, the drive gear meshes with the gear teeth, and a mounting plate for accommodating the gear teeth is provided through the top of the fixed plate.

[0010] As a further embodiment of the present invention: sliding grooves are provided on both sides of the front and back of the mounting bracket, fixing bolts are provided on the inner surface of the sliding grooves, and threaded holes that are compatible with the sliding grooves are provided on the surface of the fixing plate.

[0011] As a further aspect of the present invention, the top of the mounting bracket is also provided with a detection plate for detecting the position of the battery cells.

[0012] The beneficial effects of this invention are: (1) In this invention, by setting four limiting plates on the mounting bracket to initially position the battery cells, and by using the fixing sleeve in the limiting groove to limit the sliding of the sliding rod, the push plates on the four sliding rods can move synchronously to the relatively close side, thereby pushing the battery cells to align. Then, by using the movable push-pull plate and fixing plate below, the battery cells can be directly transported from below to the conveyor. There is no need for suction cups, robotic arms or other equipment to pick up and put down the battery cells. The position of each battery cell is easy to control. By using this equipment to feed the battery cells in an open manner, damage to the periphery of the battery cells can be avoided to a certain extent.

[0013] (2) In this invention, the rotation of the toothed ring drives the toothed ring to rotate under the limit of the arc plate, thereby driving the connecting rod to deflect and adjust the angle of the connecting rod, which is used to adjust the sliding distance of the limiting plate in the limiting groove, so as to control the pushing distance of the push plate. This structure is relatively simple and can center the battery cell, thereby improving its practicality.

[0014] (3) In this invention, the rotation of the servo motor, in conjunction with the meshing relationship between the drive gear and the gear teeth, enables the push-pull plate to slide inside the sliding sleeve. With the push-pull plate, a battery cell can be completely dropped. When the push-pull plate and the drop-out plate are misaligned, the battery cell can be prevented from falling. When the push-pull plate and the drop-out plate overlap, the battery cell in the push-pull plate can be dropped into the drop-out plate and transported by the conveyor. Through this structure, the battery can be transported quickly in a cyclic manner. Attached Figure Description

[0015] The invention will now be further described with reference to the accompanying drawings.

[0016] Figure 1 This is a front view of the external structure of the battery cell feeding device in this invention; Figure 2 This is a top view of the external structure of the battery cell feeding device in this invention; Figure 3 This is the present invention. Figure 2 Enlarged view of the structure of section A; Figure 4 This is a schematic diagram of the installation of the push-pull plate in this invention.

[0017] In the diagram: 1. Mounting bracket; 2. Conveyor; 3. Limiting plate; 4. Connecting plate; 5. Support plate; 6. Gear ring; 7. Limiting groove; 8. Fixing sleeve; 9. Sliding rod; 10. Push plate; 11. Sliding plate; 12. Moving seat; 13. Connecting rod; 14. Rotating seat; 15. Drive motor; 16. Fixing plate; 17. Push-pull plate; 18. Pushing groove; 19. Sliding sleeve; 20. Drop groove; 21. Threaded hole; 22. Sliding groove; 23. Fixing bolt; 24. Gear tooth; 25. Mounting plate; 26. Servo motor; 27. Drive gear; 28. Detection plate; 29. ​​Arc plate; 30. Gear. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figure 1-4 As shown, the present invention is a cell feeding device for photovoltaic string welding, comprising a mounting bracket 1, a conveyor 2 for conveying the cells inside the mounting bracket 1, symmetrically arranged limiting plates 3 for limiting the cells on both sides of the top of the mounting bracket 1, connecting plates 4 fixedly connected to the two opposite limiting plates 3, and support plates 5 fixedly connected to the outer surfaces of the four limiting plates 3, the top of the support plate 5 having an opening slot for placing the cells, four limiting slots 7 having an opening slot inside the opening slot, a fixing sleeve 8 fixedly connected to the inner surface of the limiting slot 7, a sliding rod 9 slidably connected to the inner surface of the fixing sleeve 8, a push plate 10 for aligning the cells fixedly connected to one end of the sliding rod 9, and a sliding plate 11 for limiting the push plate 10 at the other end of the sliding rod 9, a fixing plate 16 for supporting the cells inside the four limiting plates 3, and a push-pull plate 17 for pushing the cells above the fixing plate 16.

[0020] In order to drive the four push plates 10 to move towards a relatively close side, the support plate 5 is provided with a rotatable gear ring 6. A movable seat 12 is fixedly connected to one side of the sliding plate 11. A connecting rod 13 is rotatably connected to the inner surface of the movable seat 12. When the connecting rod 13 and the sliding rod 9 are on the same straight line, the push plate 10 extends the longest distance. A rotating seat 14 is rotatably connected to one end of the connecting rod 13. One side of the rotating seat 14 is fixedly connected to the inner surface of the gear ring 6. A drive motor 15 is fixedly connected to the bottom of the support plate 5. The drive motor 15 is controlled by a PLC controller and can achieve forward and reverse rotation. The output end of the drive motor 15 passes through the support plate 5 and is fixedly connected to a gear 30. The gear 30 meshes with the gear ring 6. Several arc-shaped plates 29 are fixedly connected to the top of the support plate 5 to limit the position of the gear ring 6.

[0021] To allow the battery cells to fall sequentially, a mounting plate 25 is fixedly connected to one side of the mounting bracket 1. Sliding sleeves 19 are fixedly connected to both sides of the top of the mounting plate 25. The inner surface of the sliding sleeves 19 is slidably connected to the surface of the push-pull plate 17. A push-pull groove 18 is formed through the top of the push-pull plate 17, the size of which is the same as the size of the battery cell, ensuring that the battery cell can fall into the push-pull groove 18. A dropping groove 20 is formed on one side of the fixing plate 16. Several gear teeth 24 are fixedly connected to the bottom of the push-pull plate 17. A fixed groove 20 is formed on one side of the mounting plate 25. A servo motor 26 is connected, and a drive gear 27 is fixedly connected to the output end of the servo motor 26. The drive gear 27 meshes with the gear teeth 24. A mounting plate 25 for accommodating the gear teeth 24 is provided through the top of the fixing plate 16. Sliding grooves 22 are provided on both the front and back sides of the mounting bracket 1. Fixing bolts 23 are provided on the inner surface of the sliding grooves 22. Threaded holes 21 that are compatible with the sliding grooves 22 are provided on the surface of the fixing plate 16. The fixing plate 16 can be replaced and its height adjusted by means of the fixing bolts 23, the sliding grooves 22 and the threaded holes 21.

[0022] In a preferred embodiment, the top of the mounting bracket 1 is also provided with a detection plate 28 for detecting the position of the battery cells. Several CCD cameras are fixedly connected to the bottom of the detection plate 28. The CCD cameras capture images of the battery cells during transport. By identifying the position of the battery cells in the images, the placement position of the battery cells can be further determined.

[0023] The working principle of this invention is as follows: First, several battery cells are stacked inside the limiting plate 3 and located inside the pushing groove 18 and the dropping groove 20. At this time, the battery cell at the bottom is in contact with the surface of the conveyor 2, while the battery cell above it is located inside the pushing groove 18. Then, the drive motor 15 on the support plate 5 is started to rotate. Utilizing the meshing relationship between the gear 30 and the gear ring 6, the gear ring 6 rotates within the arc plate 29, thereby driving the connecting rod 13 on the rotating seat 14 to push the sliding plate 11 on the moving seat 12 to slide on the inner surface of the limiting groove 7. At this time, the sliding rod 9 slides inside the fixed sleeve 8, further driving the push plate 10 to move to the side closer to the center, thereby aligning the batteries in the limiting plate 3 vertically and pushing them to the center position between the four limiting plates 3. At this time, the servo motor 26 on the mounting plate 25 is started to rotate, thereby driving the drive gear 27 to rotate. The push-pull plate 17 slides inside the sliding sleeve 19 through the meshing relationship between the drive gear 27 and several gear teeth 24. The internal battery cells are slid to the top of the fixed plate 16 by the limiting of the push-pull groove 18. At this time, the battery cells slide with the top of the push-pull plate 17. The conveyor 2 is started to transport the battery cells located in the dropping groove 20 and send them out from one side of the dropping groove 20. At this time, the servo motor 26 reverses, thereby driving the push-pull plate 17 to move into the interior of the four limiting plates 3. When the push-pull groove 18 on the push-pull plate 17 coincides with the dropping groove 20 on the fixed plate 16, the battery cells in the push-pull groove 18 fall above the conveyor 2 and are located inside the dropping groove 20. New battery cells will fall into the inside of the push-pull groove 18. This cycle is repeated to transport the battery cells in a regular manner for feeding. When the battery cells are transported, the position of the two battery cells is detected by the detection plate 28. When it is necessary to replace the battery cells with cells of different thicknesses, the fixing plate 16 can be removed from the top of the conveyor 2 by rotating the fixing bolt 23, and the fixing plate 16 with the appropriate thickness can be replaced. The fixing bolt 23 can be connected to the threaded hole 21 on the fixing plate 16 by passing through the sliding groove 22.

[0024] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A cell feeding device for photovoltaic string welding, comprising a mounting bracket (1), wherein a conveyor (2) for conveying the cells is disposed inside the mounting bracket (1), characterized in that, The mounting bracket (1) has symmetrically arranged limiting plates (3) on both sides of the top to limit the battery cells. A connecting plate (4) is fixedly connected to the two opposite limiting plates (3). A support plate (5) is fixedly connected to the outer surface of the four limiting plates (3). The top of the support plate (5) is provided with an opening slot for placing the battery cells. Four limiting slots (7) are provided inside the opening slot. A fixing sleeve (8) is fixedly connected to the inner surface of the limiting slot (7). A sliding rod (9) is slidably connected to the inner surface of the fixing sleeve (8). A push plate (10) for aligning the battery cells is fixedly connected to one end of the sliding rod (9). A sliding plate (11) for limiting the push plate (10) is provided at the other end of the sliding rod (9). A fixing plate (16) for supporting the battery cells is provided inside the four limiting plates (3). A push-pull plate (17) for pushing the battery cells is provided above the fixing plate (16). The support plate (5) is provided with a rotatable gear ring (6), a movable seat (12) is fixedly connected to one side of the sliding plate (11), a connecting rod (13) is rotatably connected to the inner surface of the movable seat (12), a rotating seat (14) is rotatably connected to one end of the connecting rod (13), and one side of the rotating seat (14) is fixedly connected to the inner surface of the gear ring (6). A mounting plate (25) is fixedly connected to one side of the mounting bracket (1). Sliding sleeves (19) are fixedly connected to both sides of the top of the mounting plate (25). The inner surface of the sliding sleeve (19) is slidably connected to the surface of the push-pull plate (17). A push-pull groove (18) is provided through the top of the push-pull plate (17). A drop groove (20) is provided on one side of the fixed plate (16). The bottom of the support disk (5) is fixedly connected to a drive motor (15). The output end of the drive motor (15) passes through the support disk (5) and is fixedly connected to a gear (30). The gear (30) meshes with the gear ring (6). The top of the support disk (5) is fixedly connected to several arc-shaped plates (29) that limit the position of the gear ring (6). The bottom of the push-pull plate (17) is fixedly connected with several gear teeth (24), and a servo motor (26) is fixedly connected to one side of the mounting plate (25). The output end of the servo motor (26) is fixedly connected to a drive gear (27), and the drive gear (27) meshes with the gear teeth (24). The mounting bracket (1) has sliding grooves (22) on both the front and back sides. The inner surface of the sliding groove (22) is provided with fixing bolts (23). The surface of the fixing plate (16) is provided with threaded holes (21) that are compatible with the sliding groove (22). The top of the mounting bracket (1) is also provided with a detection plate (28) for detecting the position of the battery cells.

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