Lead paste feeding device

Abstract

The utility model relates to a lead paste feeding device which comprises two stirring units and a driving motor used for driving the two stirring units to operate oppositely, the two stirring units are arranged in a paste hopper above a paste feeding roller in a left-right spaced mode, and each stirring unit comprises two rotating shafts, a long installation plate, a stirring rod and a feeding plate. The two rotating shafts are symmetrically arranged on the side wall of the paste hopper and rotationally connected with the side wall of the paste hopper, a long mounting plate is arranged on each rotating shaft in the radial direction, two stirring rods are rotationally connected between the two long mounting plates, the stirring rods are arranged at intervals, the axial direction of the stirring rods is the same as that of the rotating shafts, a feeding plate is arranged on each stirring rod, and the feeding plates are arranged on the rotating shafts. The feeding plate and the stirring rod rotate together, and the feeding plate protrudes out of the surface of the stirring rod. According to the utility model, the lead plaster can be extruded and pushed downwards through the relative movement of the two stirring units, so that the lead plaster is smoothly moved downwards to the position of the plaster feeding roller.

Description

Technical Field

[0001] This utility model relates to the field of storage battery manufacturing technology, and in particular to a lead paste feeding device. Background Technology

[0002] In battery manufacturing, there is a coating process. This process involves using a coating machine to coat the active material, lead paste, onto the grids to form the required plates. The coating machine is existing technology. As the grid belt continuously passes through the coating machine, the paste-coating mechanism applies the lead paste onto the grids. The lead paste comes from a paste-mixing machine, which mixes lead powder with water and acid to create lead paste. The prepared lead paste is then fed into storage hoppers. These storage hoppers are spaced above the coating machine, and a screw feeder is installed at the bottom outlet of each hopper. This feeder delivers the lead paste from the storage hopper into the coating machine. Figure 1 As shown.

[0003] The operating process of the above equipment is existing technology. For example, patent publication number CN116477381A discloses an automatic lead paste conveying device and its control method in the production process of lead-acid batteries, and patent publication number CN214477545U discloses an automatic paste-dispensing battery coating plate device. Both of these disclose this production process.

[0004] The coating mechanism in the plate coating machine includes components such as a paste hopper, stirring blades, a paste feeding roller, and a coating roller. The paste hopper and storage hopper are connected vertically, and the stirring blades, paste feeding roller, and coating roller are arranged sequentially inside the paste hopper. The stirring blades mix the lead paste again, and then the lead paste is pressed into the coating roller after passing through the paste feeding roller. As the paste feeding roller and coating roller rotate, the lead paste in the paste hopper is continuously applied to the plate grid.

[0005] The structure and principle of the coating mechanism are also existing technologies. For example, patent publication number CN114345623B discloses an electrode plate coating device with adjustable coating amount, in which a lead paste stirring component is rotatably arranged. Two lead paste stirring components rotate synchronously, which can fully stir and mix the lead paste. At the same time, the lead paste is pressed into the discharge roller by the extrusion roller. Another example is the drum coating machine disclosed in patent publication number CN216988340U, in which the stirring roller group is designed with two rollers, namely roller one and roller two. The lead paste is pushed and squeezed towards the coating roller by the lower paste roller one and lower paste roller two.

[0006] However, it should be noted that while the rotating feed roller can push and press the lead paste downwards to the coating roller, the main function of the agitator is to mix the paste. Its effect on pushing the lead paste to the feed roller is not significant. The lead paste mainly falls to the feed roller by its own weight. Therefore, the lead paste may not fall smoothly, and the feed roller may have difficulty pushing the lead paste from the agitator to the coating roller in time, affecting the normal coating of the grid. Summary of the Invention

[0007] To solve the problem of poor downward pushing of lead paste at the stirring blade position, this utility model provides a lead paste feeding device. The structure of the stirring blade is optimized so that it can not only have a stirring function, but also push the lead paste downward through its own rotation, so that the lead paste can move smoothly to the feed roller position.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] The lead paste feeding device includes two stirring units and a drive motor for driving the two stirring units to rotate in opposite directions, so as to facilitate the downward squeezing and pushing of lead paste through the relative movement of the two stirring units. The two stirring units are arranged left and right at intervals in the paste hopper above the paste feeding roller. Each stirring unit includes two rotating shafts, a mounting plate and a stirring rod and a feeding plate.

[0010] Two rotating shafts are symmetrically arranged on the side wall of the paste hopper and are rotatably connected to the side wall of the paste hopper. Each rotating shaft has a mounting plate arranged radially, which can easily drive the mounting plate to rotate. The two mounting plates are connected by a stirring rod, which can both rotate and lock. There are two stirring rods arranged at intervals. The axis of the stirring rod is the same as the axis of the rotating shaft. Each stirring rod is provided with a feeding plate, which rotates together with the stirring rod. The feeding plate protrudes from the surface of the stirring rod.

[0011] Furthermore, the two stirring units are staggered left and right and have a vertical gap; the rotating shaft is a cylinder with a "T" shaped cross-section. The large-diameter end of the rotating shaft extends into the paste hopper and is connected to the mounting rod, while the small-diameter end of the rotating shaft extends out of the paste hopper and is connected to a drive motor, which facilitates driving the rotating shaft to rotate. The rotating shaft is rotatably connected to the paste hopper through a bearing seat, which improves the smoothness of the rotating shaft's operation.

[0012] Furthermore, the mounting plate is a long strip, and the length direction of the mounting plate is consistent with the radial direction of the rotation axis. The mounting plate and the rotation axis are detachably connected, and mounting bolts are provided between the mounting plate and the rotation axis to facilitate the assembly and disassembly of the mounting plate. The mounting bolts are arranged along the axial direction of the rotation axis.

[0013] Furthermore, the stirring rod is a hollow circular rod with stepped shaft-shaped rotating blocks at both ends. The mounting plate has a rotating hole at one end. The larger diameter end of the rotating block is inserted into and rotatably connected to the rotating hole, while the smaller diameter end extends out of the rotating hole and is connected to a nut. The nut, in conjunction with the stirring rod, clamps the mounting plate. Tightening the nut facilitates fixing the stirring rod, while loosening the nut allows for manual adjustment of the stirring rod's rotation.

[0014] Furthermore, the feeding plate is a single long strip plate, with its length direction aligned with the axial direction of the stirring rod and its width direction pointing towards the center of the stirring rod.

[0015] The beneficial effects of this utility model through the above technical solution are:

[0016] This utility model has a reasonable structural design. The two stirring rods rotate around the mounting bolt as the center, and the drive motor can easily drive the two stirring rods to revolve. During this process, the lead paste in the paste hopper can be stirred. Since the stirring rod is equipped with a feeding plate, the contact area between the stirring rod and the lead paste is increased. During the revolution of the feeding plate, the feeding plate can push the lead paste downward and promote the smooth movement of the lead paste towards the paste delivery roller.

[0017] The stirring rod of this invention can rotate and is fixed by a nut. The stirring rod can be locked and unlocked by tightening or loosening the nut, allowing for convenient manual control of its rotation. As a result, the rotation of the stirring rod causes the feed plate to rotate as well, thus changing the outward extension position of the feed plate and altering the size of the circular trajectory formed by the two feed plates during their revolution. This allows for easy adjustment of the feed plate's pushing effect on the lead paste. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a plate coating machine.

[0019] Figure 2 This is a front view of the lead paste feeding device of this utility model.

[0020] Figure 3 This is a top view of the lead paste feeding device of this utility model.

[0021] Figure 4 This utility model relates to a lead paste feeding device. Figure 3 A magnified view of a portion of the image.

[0022] Figure 5 This is a top-down view of a single stirring unit of the lead paste feeding device of this utility model.

[0023] Figure 6 This is a split front view of a single stirring unit of the lead paste feeding device of this utility model.

[0024] The attached diagram is labeled as follows: 1. Coating machine, 2. Paste hopper, 3. Stirring blade, 4. Paste feeding roller, 5. Paste coating roller, 6. Storage hopper, 7. Stirring unit, 71. Rotating shaft, 72. Mounting plate, 73. Stirring rod, 74. Feeding plate, 8. Mounting bolt, 9. Rotating block, 10. Rotating hole, 11. Nut. Detailed Implementation

[0025] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings:

[0026] like Figures 2-6 As shown, the lead paste feeding device is used to smoothly push the lead paste in the paste hopper 2 downwards to the paste delivery roller 4, thereby facilitating the paste delivery roller 4 to push the lead paste to the coating roller 5. The feeding device includes two stirring units 7 and two drive motors for driving the two stirring units 7 to rotate in opposite directions. There are two drive motors, each corresponding to one of the two stirring units 7, and each stirring unit 7 can be powered individually.

[0027] Two stirring units 7 are arranged at intervals on the left and right sides in the paste hopper 2 above the paste delivery roller 4. The two stirring units 7 are staggered on the left and right sides and have a vertical gap, that is, the two stirring units 7 are not at the same height position, which reduces the space occupied by the paste hopper 2 on the left and right sides.

[0028] Each mixing unit 7 serves both to mix and push lead paste. Each mixing unit 7 includes two rotating shafts 71, a mounting plate 72, a mixing rod 73, and a feeding plate 74. The two rotating shafts 71 are symmetrically arranged on the side wall of the paste hopper 2 and are rotatably connected to the side wall of the paste hopper 2. Specifically, the rotating shafts 71 are rotatably connected to the paste hopper 2 through bearing seats to ensure smooth rotation of the rotating shafts 71.

[0029] The rotating shaft 71 is a cylinder with a "T"-shaped cross-section. The larger diameter end of the rotating shaft 71 extends into the paste hopper 2, while the smaller diameter end extends out of the hopper 2 and is connected to a drive motor. A bearing housing is installed at the smaller diameter end of the rotating shaft 71, and the smaller diameter end extends outward and connects to the drive motor via a coupling, thereby enabling the drive motor to rotate the rotating shaft 71. The drive motor is not shown in the figure.

[0030] Each rotating shaft 71 has a radially arranged mounting plate 72. The mounting plate 72 is a long strip, and its length direction is consistent with the radial direction of the rotating shaft 71. During installation, the large-diameter end of the rotating shaft 71 is connected to the mounting rod, and the mounting plate 72 is detachably connected to the rotating shaft 71. Specifically, mounting bolts 8 are provided between the mounting plate 72 and the rotating shaft 71 for connection. The mounting bolts 8 are arranged along the axial direction of the rotating shaft 71. After passing through the mounting plate 72, the mounting bolts 8 are bolted to the rotating shaft 71 for fixation, thereby fixing the mounting plate 72 to the rotating shaft 71. The rotating shaft 71 can drive the mounting plate 72 to rotate.

[0031] Since there are two rotating shafts 71 in one stirring unit 7, and each rotating shaft 71 is equipped with a mounting plate 72, there are two mounting plates 72 in one stirring unit 7. A stirring rod 73 is connected between the two mounting plates 72. There are two stirring rods 73 arranged at intervals. The stirring rods 73 are hollow circular rods with closed ends. The axial direction of the stirring rods 73 is the same as the axial direction of the rotating shafts 71. Each stirring rod 73 can rotate independently.

[0032] When installing the mounting plate 72 and the stirring rod 73, both ends of the stirring rod 73 are provided with stepped shaft-shaped rotating blocks 9; a rotating hole 10 is opened at the end of the mounting plate 72, and the large-diameter end of the rotating block 9 is inserted into the rotating hole 10 and rotatably connected with the rotating hole 10, thereby realizing the rotation of the stirring rod 73.

[0033] To lock the stirring rod 73, a nut 11 is connected to the small-diameter end of the rotating block 9 extending from the rotating hole 10. The nut 11 is a cap-shaped nut. After tightening the nut 11, the nut 11, together with the stirring rod 73, clamps the mounting plate 72. After tightening both nuts 11, the stirring rod 73 and the two mounting plates 72 are locked together, thereby fixing the stirring rod 73, preventing the stirring rod 73 from rotating, and also preventing the stirring rod 73 from detaching from the mounting plate 72.

[0034] Each stirring rod 73 is equipped with a feeding plate 74. The feeding plate 74 is a single long strip, but it is not limited to a single structure. It can also be a split long strip composed of multiple independent short plates spliced ​​together in sequence. The feeding plate 74 protrudes from the surface of the stirring rod 73. The length direction of the feeding plate 74 is consistent with the axial direction of the stirring rod 73, and the width direction of the feeding plate 74 points towards the center of the stirring rod 73.

[0035] During installation, the process of installing a single stirring unit 7 and the paste hopper 2 is as follows: Rotary shafts 71 are pre-installed on both sides of the paste hopper 2, and one end of one rotating shaft 71 is connected to a drive motor to ensure the drive motor can rotate the rotating shaft 71. The integrated feeding plate 74 is welded and fixed to the stirring rod 73, creating two stirring rods 73 with feeding plates 74, which are then arranged at intervals. Two mounting plates 72 are inserted into the ends of the stirring rods 73 and secured with nuts 11, thus connecting and fixing the mounting plates 72 to the stirring rods 73. Finally, the mounting plates 72, along with the stirring rods 73, are placed between the two rotating shafts 71 and fixed with mounting bolts 8, completing the assembly of the single stirring unit 7. In addition to being assembleable, the stirring unit 7 can also be easily disassembled for cleaning.

[0036] After the drive motor starts, it can drive the two stirring rods 73 to rotate around the mounting bolt 8. Since the two stirring units 7 rotate in opposite directions, the lead paste can be conveyed between the two stirring units 7; at the same time, the stirring rods 73 can stir the lead paste during their revolution, and the stirring rods 73 drive the feeding plate 74 to revolve together. The feeding plate 74 has a large contact area with the lead paste, and the feeding plate 74 can push the lead paste downward through the rotational force, so that the lead paste can move smoothly to the position of the paste delivery roller 4.

[0037] It should be noted that: the line connecting the outer end of the feed plate 74 and the center of the stirring rod 73 is line segment one, and the line connecting the center of the stirring rod 73 and the mounting bolt 8 is line segment two. Line segment one and line segment two form an included angle A. Since the stirring rod 73 can drive the feed plate 74 to rotate and can also be fixed, the position of the feed plate 74 is adjustable, and the included angle A is variable. When A is 180°, the diameter of the circular trajectory formed by the revolution of the feed plate 74 is the largest, resulting in a better downward pushing effect on the lead paste. Therefore, the downward pushing effect of the entire stirring unit 7 on the lead paste can be changed by adjusting the included angle A.

[0038] 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 lead paste feeding device, characterized in that, It includes two stirring units (7) and a drive motor for driving the two stirring units (7) to rotate in opposite directions. The two stirring units (7) are arranged at intervals on the left and right in the paste hopper (2) above the paste delivery roller (4). Each stirring unit (7) includes two rotating shafts (71), a mounting plate (72), a stirring rod (73), and a feeding plate (74). Two rotating shafts (71) are symmetrically arranged on the side wall of the paste hopper (2) and are rotatably connected to the side wall of the paste hopper (2). Each rotating shaft (71) is radially arranged with an mounting plate (72). The two mounting plates (72) are connected to a stirring rod (73). The number of stirring rods (73) is two arranged at intervals. The axial direction of the stirring rod (73) is the same as that of the rotating shaft (71). Each stirring rod (73) is provided with a feeding plate (74), which protrudes from the surface of the stirring rod (73).

2. The lead paste feeding device according to claim 1, characterized in that, The two stirring units (7) are offset to the left and right and have a vertical gap; the rotating shaft (71) is a cylinder with a "T" shaped cross section. The large diameter end of the rotating shaft (71) extends into the paste hopper (2) and is connected to the mounting rod. The small diameter end of the rotating shaft (71) extends out of the paste hopper (2) and is connected to a drive motor. The rotating shaft (71) is rotatably connected to the paste hopper (2) through a bearing seat.

3. The lead paste feeding device according to claim 1, characterized in that, The mounting plate (72) is a long strip plate. The length direction of the mounting plate (72) is consistent with the radial direction of the rotating shaft (71). The mounting plate (72) and the rotating shaft (71) are detachably connected. The mounting plate (72) and the rotating shaft (71) are connected by mounting bolts (8). The mounting bolts (8) are arranged along the axial direction of the rotating shaft (71).

4. The lead paste feeding device according to claim 1, characterized in that, The stirring rod (73) is a hollow circular rod. Both ends of the stirring rod (73) are provided with stepped shaft-shaped rotating blocks (9). The end of the mounting plate (72) is provided with a rotating hole (10). The large diameter end of the rotating block (9) is inserted into the rotating hole (10) and is rotatably connected to the rotating hole (10). The small diameter end of the rotating block (9) extends out of the rotating hole (10) and is connected to a nut (11). The nut (11) cooperates with the stirring rod (73) to clamp the mounting plate (72).

5. The lead paste feeding device according to claim 1, characterized in that, The feeding plate (74) is an integral long strip plate. The length direction of the feeding plate (74) is consistent with the axial direction of the stirring rod (73), and the width direction of the feeding plate (74) points to the center of the stirring rod (73).

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