Battery grid pasting device

Abstract

The utility model belongs to the technical field of battery grid manufacturing, and particularly relates to a battery grid pasting device which comprises a supporting frame, and a discharging hopper, an extrusion roller, a flattening roller and a conveying belt are sequentially arranged on the supporting frame from top to bottom. Width adjusting devices are arranged on the two extrusion rollers, and screw grooves and limiting grooves are formed in the ends of the extrusion rollers. The width adjusting device comprises cylinders and end plates, the two ends of each extrusion roller are sleeved with the cylinders, the cylinders are fixedly connected with the end plates, the end plates are rotationally connected with first screws and provided with guide rods, the first screws are in threaded connection with the extrusion rollers, and the guide rods are inserted into the limiting grooves; and the corresponding cylinder bodies on the two extrusion rollers are in contact with each other. The lead plaster is extruded into a continuous sheet shape through the two extrusion rollers, the extrusion width is adjusted to enable the sheet-shaped lead plaster to be matched with the size of a plate grid, then the adhesive force between the lead plaster and the plate grid is guaranteed through the flattening roller, and the difficulty of follow-up cleaning of redundant lead plaster is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of solar cell grid manufacturing technology, specifically relating to a solar cell grid paste coating device. Background Technology

[0002] Currently, in the manufacturing of batteries, it is necessary to apply paste to the surface of the battery grid to ensure the performance of the grid. The existing paste application is mostly done by extrusion rollers. The size of the extrusion rollers is fixed. When applying paste to grids of different widths, it is not possible to make adaptive adjustments to ensure that the lead paste feeding and coating are matched with the grid size. Furthermore, when cleaning the areas on the grid that do not need paste after the paste application is completed, there is a lot of paste to clean, which increases the cleaning difficulty. Summary of the Invention

[0003] This invention addresses the problem that existing lead paste application methods often rely on extrusion rollers for overall application. Since the extrusion rollers have fixed dimensions, they cannot be adjusted to adapt to different grid widths, ensuring the lead paste feeding and coating match the grid dimensions. Furthermore, the large amount of lead paste remaining after cleaning areas where no paste is needed increases the cleaning difficulty. This invention provides a battery grid lead paste application device that uses two extrusion rollers to compress the lead paste into continuous sheets. The extrusion width is adjusted to match the sheet lead paste size to the grid dimensions. A flattening roller then ensures adhesion between the lead paste and the grid, reducing the difficulty of cleaning excess lead paste later.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A battery grid paste coating device includes a support frame, on which a feeding hopper, an extrusion roller, and a flattening roller are arranged sequentially from top to bottom. A conveyor belt is arranged below the flattening roller. Two extrusion rollers are provided, and each extrusion roller is provided with a width adjustment device. Each extrusion roller has a screw groove and a limiting groove at its end. The width adjustment device includes a cylinder and an end plate. Each extrusion roller has a cylinder sleeved at both ends. An end plate is fixedly provided at one of the two cylinders facing away from each other. A first screw and a guide rod are connected to one of the two end plates facing each other. The first screw is rotatably connected to the corresponding end plate and is threadedly connected to the corresponding extrusion roller through the screw groove. The guide rod is inserted into the corresponding limiting groove. The corresponding cylinders on the two extrusion rollers contact each other, and the two extrusion rollers extrude the lead paste in the feeding hopper into a continuous sheet structure that falls onto the grid on the conveyor belt. The flattening roller ensures the adhesion between the sheet lead paste and the grid and squeezes out air bubbles between the lead paste and the grid.

[0006] Preferably, the discharge port at the lower end of the hopper is provided with a discharge adjustment device. The discharge adjustment device includes two oppositely arranged discharge plates, two oppositely arranged adjustment plates, and an adjustment component. The discharge plates and adjustment plates form a rectangular cylindrical structure. The discharge plates are fixedly connected to the lower end of the hopper. The upper end of the adjustment plates is hinged to the lower end of the hopper. The adjustment component is used to drive the two adjustment plates to move closer or further apart. The discharge width of the hopper is adjusted and the discharge speed is adjusted by the swing of the two adjustment plates.

[0007] Preferably, the adjustment assembly includes a hinge shaft, a swing plate, and a U-shaped rod. One of the outer ends of the feed plate is fixedly connected to the hinge shaft. The swing plate is rotatably sleeved on the hinge shaft. The swing plate and the corresponding adjustment plate swing synchronously through the U-shaped rod. A driving device is provided between the two swing plates to drive the two swing plates to move closer or further apart. By swinging the two swing plates synchronously with the corresponding adjustment plate, the swing amplitude of the adjustment plate and the feed width can be determined by observing the swing plate.

[0008] Preferably, the driving device includes a screw barrel and a second screw rod. The two swing plates are hinged to each other on opposite sides, and the two ends of the screw barrel are threaded to the two second screw rods respectively. The screw barrel is provided with a second handle. By rotating the handle, the screw barrel is driven to rotate, which drives the two second screw rods to rotate and drives the two swing plates to swing.

[0009] Preferably, one end of the first screw is fixedly connected to a first handle through the corresponding end plate. By rotating the first screw, the corresponding end plate and the cylinder slide along the axial direction of the extrusion roller.

[0010] Preferably, the end plate is an annular plate, which does not affect the installation of the extrusion roller.

[0011] Preferably, the conveyor belt is provided with multiple drive rollers, one of which corresponds vertically to the flattening roller to ensure the distance between the conveyor belt and the flattening roller, thereby ensuring the thickness of the lead paste on the grid.

[0012] The beneficial effects of this utility model through the above technical solution are as follows:

[0013] 1. This utility model uses two extrusion rollers set below the hopper to extrude lead paste into continuous sheets that fall onto the conveying grid, and uses a flattening roller to ensure the adhesion between the lead paste and the grid, thereby realizing continuous production of grid coating and improving work efficiency.

[0014] 2. This utility model sets a width adjustment device at both ends of the extrusion roller, and then adjusts the distance between the two cylinders on the same extrusion roller by rotating the corresponding first screw, thereby adjusting the width of the sheet lead paste extruded by the extrusion roller, ensuring that the width of the sheet lead paste matches the width required for the grid coating, thus ensuring the amount of coating while reducing the difficulty of cleaning up excess lead paste later.

[0015] 3. This utility model prevents lead paste from falling between adjacent cylinders by bringing two adjacent cylinders into contact, thereby ensuring the width of the sheet-like lead paste extruded by the extrusion roller.

[0016] 4. In this utility model, twice the thickness of the cylinder body is the distance between the two extrusion rollers. By replacing the corresponding width adjustment device with a cylinder body of the appropriate thickness, the thickness of the extruded sheet lead paste can be adjusted. At the same time, the consistency of the distance between the two extrusion rollers when adjusting the distance between the extrusion rollers and when installing the extrusion rollers is ensured, reducing the difficulty of installation and adjustment.

[0017] 5. This utility model rotates the screw drum, causing two swing plates and two adjusting plates to swing, so that the lower ends of the two swing plates move closer or further apart, which in turn causes the lower ends of the two adjusting plates to move closer or further apart, thereby adjusting the feeding width of the lead paste in the hopper to match the width of the extruded sheet lead paste, adjusting the feeding speed, and ensuring full utilization of the lead paste.

[0018] 6. This utility model sets corresponding scales on the outer side of the corresponding feeding plate, and then observes the distance between the lower ends of the two swing plates to easily determine the distance between the lower ends of the two adjustment plates, thereby determining the feeding width and ensuring that the feeding width is the same as the distance between the two cylinders of the width adjustment device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of the extrusion roller of this utility model.

[0021] Figure 3 This is a schematic diagram of the width adjustment device of this utility model.

[0022] Figure 4 This is a schematic diagram of the installation structure of the width adjustment device of this utility model.

[0023] Figure 5 This is a schematic diagram of the material discharge adjustment device of this utility model.

[0024] Figure 6 This utility model Figure 5 Enlarged view of point A in the middle.

[0025] The numbers in the attached diagram are as follows: 1 is the support frame, 2 is the feeding hopper, 3 is the extrusion roller, 31 is the screw groove, and 32 is the limiting groove;

[0026] 4 is the flattening roller, 5 is the conveyor belt, 6 is the width adjustment device, 61 is the cylinder, 62 is the end plate, 63 is the first screw, 64 is the guide rod, and 65 is the first handle.

[0027] 7 is the discharge adjustment device, 71 is the discharge plate, 72 is the adjustment plate, 73 is the hinge shaft, 74 is the swing plate, 75 is the U-shaped rod, 76 is the screw barrel, 77 is the second screw, and 78 is the second handle. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0029] like Figures 1-6 As shown, this utility model provides a battery grid coating device, including a support frame 1. The support frame 1 is provided with a feeding hopper 2, an extrusion roller 3 and a flattening roller 4 arranged sequentially from top to bottom. A conveyor belt 5 is arranged below the flattening roller 4.

[0030] In Example 1, a hopper 2 is connected to the inner side of the support frame 1, and an extrusion roller 3 is provided on the lower side of the support frame 1. There are two extrusion rollers 3, and a motor is connected to the outer end of the extrusion roller 3 to drive the extrusion roller 3 to rotate.

[0031] The conveyor belt 5 carries a grid, which is a continuous plate structure formed by stamping lead plates. The lead paste in the hopper 2 falls between two extrusion rollers 3 and is squeezed into a continuous sheet by the two extrusion rollers 3. It falls on the upper side of the grid conveyed by the conveyor belt 5. With the joint action of the flattening roller 4 and the conveyor belt 5, it adheres to the grid and is conveyed backward. The conveyor belt 5 is equipped with multiple drive rollers, one of which corresponds to the flattening roller 4. Through the joint action of the flattening roller 4 and the upper side of the conveyor belt 5 above the corresponding drive roller, the sheet lead paste and the grid are squeezed. On the one hand, this further ensures that the lead paste thickness is consistent. On the other hand, it ensures the adhesion between the grid and the lead paste. Furthermore, it ensures that the surface thickness of the grid is the required thickness.

[0032] In Example 2, each end of the extrusion roller 3 is provided with a screw groove 31 and a limiting groove 32;

[0033] Each of the extrusion rollers 3 is equipped with a width adjustment device 6, which includes a cylinder 61 and an end plate 62. A cylinder 61 is fitted onto both ends of each extrusion roller 3, and the cylinder 61 is movably fitted onto the ends of the extrusion roller 3. An end plate 62 is fixedly mounted on the opposite end of each of the two cylinders 61. The end plate 62 is an annular plate, and a first screw 63 and a guide rod 64 are connected to the opposite side of each of the two end plates 62. The first screw 63 is rotatably connected to the corresponding end plate 62, and the first screw 63 communicates with the corresponding end plate 62 through a screw groove 31. The extrusion roller 3 is threadedly connected, and the guide rod 64 is inserted into the corresponding limiting groove 32. One end of the first screw 63 passes through the corresponding end plate 62 and is fixedly connected to a first handle 65. By rotating the first handle 65, the first screw 63 is driven to rotate, causing the end plate 62 and the cylinder 61 to slide along the axial direction of the extrusion roller 3. When the first screw 63 is rotated, the guide rod 64 limits the rotation of the end plate 62 and the cylinder 61. At the same time, the first screw 63 and the guide rod 64 ensure that the cylinder 61 and the corresponding extrusion roller 3 rotate synchronously. Figure 4 As shown, the corresponding cylinders 61 on the two extrusion rollers 3 are in contact, meaning that the lead paste falling from the hopper 2 cannot pass between the two adjacent cylinders 61. Therefore, the distance between the two cylinders 61 on the same extrusion roller 3 is the width of the extruded sheet lead paste. By sliding the two cylinders 61 along the axial direction of the extrusion roller 3, the distance between the two cylinders 61 can be adjusted to accommodate different sizes of grid widths, reducing the amount of work required to clean up excess lead paste later.

[0034] It should be noted that twice the thickness of the cylinder 61 is the distance between the two extrusion rollers 3, and is the thickness of the extruded sheet of lead paste. By replacing the cylinder 61 with one of the appropriate thickness, the distance between the two extrusion rollers 3 can be adjusted while ensuring the consistency of the distance between them, thereby ensuring the consistency of the thickness of the extruded lead paste and guaranteeing the quality of the coating.

[0035] In Example 3, a discharge adjustment device 7 is provided at the lower discharge port of the hopper 2. The discharge adjustment device 7 includes two oppositely arranged discharge plates 71, two oppositely arranged adjustment plates 72, and an adjustment component. The discharge plates 71 and adjustment plates 72 form a rectangular cylindrical structure. The lead paste in the hopper 2 falls between the two extrusion rollers 3 through this cylindrical structure. The discharge plates 71 are fixedly connected to the lower end of the hopper 2. The upper end of the adjustment plates 72 is hinged to the lower end of the hopper 2. The adjustment component is used to drive the two adjustment plates 72 to move closer or further apart, that is, to drive the two adjustment plates 72 to swing, so that the cylindrical structure formed by the discharge plates 71 and adjustment plates 72 forms a frustum shape that runs vertically through the top and bottom, with a larger upper opening and a smaller lower opening, so as to realize the adjustment of the discharge speed. At the same time, when the width adjustment device is adjusted, the distance between the lower ends of the two adjustment plates 72 is the same as the distance between the two cylinders 61 of the width adjustment device, so as to realize the adaptation of the discharge width.

[0036] The adjustment assembly includes a hinge shaft 73, a swing plate 74, and a U-shaped rod 75. The two outer ends of one of the feeding plates 71 are fixedly connected to the hinge shaft 73. The swing plate 74 is rotatably sleeved on the hinge shaft 73. The swing plate 74 and the corresponding adjustment plate 72 swing synchronously through the U-shaped rod 75. A driving device is provided between the two swing plates 74 to drive the two swing plates 74 to move closer or further away from each other. The angle of the adjustment plate 72 can be determined by observing the angle after the swing plate 74 swings.

[0037] The driving device includes a screw barrel 76 and a second screw 77. The two swing plates 74 are hinged to the opposite sides of the second screw 77. The two ends of the screw barrel 76 are respectively threaded to the two second screws 77. The screw barrel 76 is provided with a second handle 78. By rotating the second handle 78, the screw barrel 76 is rotated, which in turn rotates the two second screws 77, causing the lower ends of the two swing plates 74 to move closer or further apart, and causing the lower ends of the two adjusting plates 72 to move closer or further apart as well. This makes the opposing ends of the cylinder 61 of the width adjustment device correspond vertically to the lower ends of the two adjusting plates 72.

[0038] As one possible implementation, the outer side of the feeding plate 71 is provided with a scale (not shown in the figure) to observe the distance between the lower ends of the two swing plates 75 after swinging, thereby determining the distance between the lower ends of the two adjusting plates 72, and thus ensuring that the feeding width is consistent with the extrusion width of the extrusion roller 3 and the width of the extruded sheet lead paste.

[0039] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A battery plate pasting device characterized by comprising: Includes a support frame (1), on which a feeding hopper (2), an extrusion roller (3) and a flattening roller (4) are arranged sequentially from top to bottom, and a conveyor belt (5) is arranged below the flattening roller (4); There are two extrusion rollers (3), and each extrusion roller (3) is provided with a width adjustment device (6). The ends of the extrusion rollers (3) are provided with screw grooves (31) and limiting grooves (32). The width adjustment device (6) includes a cylinder (61) and an end plate (62). Each of the extrusion rollers (3) is fitted with a cylinder (61) at both ends. An end plate (62) is fixedly installed at the opposite end of each of the two cylinders (61). A first screw (63) and a guide rod (64) are connected to the opposite side of each of the two end plates (62). The first screw (63) is rotatably connected to the corresponding end plate (62). The first screw (63) is threadedly connected to the corresponding extrusion roller (3) through a screw groove (31). The guide rod (64) is inserted into the corresponding limiting groove (32). The corresponding cylinders (61) on the two extrusion rollers (3) are in contact.

2. A battery grid pasting device as claimed in claim 1, wherein, The discharge outlet at the lower end of the hopper (2) is provided with a discharge adjustment device (7). The discharge adjustment device (7) includes two oppositely arranged discharge plates (71), two oppositely arranged adjustment plates (72), and an adjustment component. The discharge plates (71) and adjustment plates (72) form a rectangular cylindrical structure. The discharge plates (71) are fixedly connected to the lower end of the hopper (2). The upper end of the adjustment plates (72) is hinged to the lower end of the hopper (2). The adjustment component is used to drive the two adjustment plates (72) to move closer to or further away from each other.

3. A battery grid pasting device as claimed in claim 2, wherein, The adjustment assembly includes a hinge shaft (73), a swing plate (74), and a U-shaped rod (75). The hinge shaft (73) is fixedly connected to both ends of the outer side of one of the feed plates (71). The swing plate (74) is rotatably sleeved on the hinge shaft (73). The swing plate (74) and the corresponding adjustment plate (72) swing synchronously through the U-shaped rod (75). A driving device is provided between the two swing plates (74) to drive the two swing plates (74) to move closer or further away from each other.

4. A battery grid pasting device as claimed in claim 3, wherein, The driving device includes a screw barrel (76) and a second screw (77). The two swing plates (74) are hinged to each other on opposite sides and the two second screws (77) are threaded to both ends of the screw barrel (76). A second handle (78) is provided on the screw barrel (76).

5. The battery grid pasting device of claim 1, wherein, The first screw (63) has a first handle (65) fixedly connected to one end through the corresponding end plate (62).

6. A battery grid pasting device as claimed in claim 1, wherein, The end plate (62) is an annular plate.

7. A battery grid pasting device as claimed in claim 1, wherein, The conveyor belt (5) is equipped with multiple drive rollers, one of which corresponds vertically to the flattening roller (4).

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