A lead-acid battery paste container with a leveling device

Abstract

This invention relates to the technical field of lead-acid battery plate manufacturing equipment, specifically to a lead-acid battery paste hopper with a leveling device. The hopper includes a paste hopper body, a bottom plate with a paste outlet, and a first bottom surface and a second bottom surface sequentially arranged along the plate conveying direction. The paste outlet is located on the first bottom surface, which has a mounting groove. An adjusting plate is installed in the mounting groove, and after installation, the lower surface of the adjusting plate is flush with the first bottom surface. The technical problem this invention aims to solve is to address the uneven paste thickness on the plates in existing technologies by providing a lead-acid battery paste hopper with a leveling device. By finely adjusting the gap between the adjusting plate and the hub, the consistency of the applied paste thickness is ensured after adjustment.

Description

Technical Field

[0001] This invention relates to the technical field of lead-acid battery plate manufacturing equipment, specifically to a lead-acid battery lead paste container with a leveling device. Background Technology

[0002] In the manufacturing process of lead-acid battery plates, lead paste (active material) needs to be uniformly applied to the lead alloy grid. Existing coating equipment usually includes a lead paste hopper with a paste outlet at the bottom. The lead paste is squeezed out from the outlet under the pressure of the push shaft inside the lead paste hopper and applied to the grid that passes through continuously. The lead paste on the grid is then squeezed between the bottom of the lead paste hopper and the hub set below to form a uniform thickness. However, because the stamped grid is extremely thin (usually 0.8-1.4mm) and soft, it is very easy to deform during transportation and coating. At the same time, wear and assembly tolerances caused by long-term operation of the equipment will cause significant differences in the lead paste thickness of the grid after coating, that is, uneven thickness.

[0003] Uneven thickness of the electrode plates can lead to an imbalance in assembly pressure between the plates during subsequent assembly into electrode groups, severely affecting the battery's capacity consistency, cycle life, and overall performance stability. Therefore, there is an urgent need for a lead paste hopper capable of localized, real-time adjustment of the paste outlet gap to compensate for grid deformation and equipment deviations, ensuring uniform paste thickness. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a lead-acid battery lead paste container with a leveling device to address the defect of uneven thickness of the electrode plate paste in the prior art. By finely adjusting the gap between the adjustment plate and the hub, the consistency of the thickness of the applied lead paste is ensured after adjustment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A lead-acid battery paste container with a leveling device includes a paste container body. The bottom plate of the paste container body has a paste outlet. The bottom plate has a first bottom surface and a second bottom surface sequentially arranged along the grid conveying direction. The paste outlet is located on the first bottom surface. A mounting groove is formed on the first bottom surface, and an adjusting plate is installed in the mounting groove. After installation, the lower surface of the adjusting plate is flush with the first bottom surface. The side of the adjusting plate near the paste outlet is fixedly connected to the first bottom surface by fasteners, and the other side away from the paste outlet is connected to an adjusting device. At least one horizontal mounting hole is provided on the end face of the second bottom surface, communicating with the internal space of the mounting groove. The adjusting device includes an adjusting screw threaded into the mounting hole, with a tapered end extending into the mounting groove. Screwing in the adjusting screw allows its tapered end to push against the adjusting plate, causing a corresponding portion of the adjusting plate to protrude relative to the first bottom surface.

[0006] As a further improvement of the present invention, the adjusting plate is made of titanium alloy.

[0007] As a further improvement of the present invention, the adjustable range of the adjustable plate is 0 to 3.5 mm.

[0008] As a further improvement of the present invention, a wedge-shaped adjusting post is provided on the upper surface of the adjusting plate away from the ointment outlet. The wedge-shaped adjusting post has an inclined surface, which is oriented toward the mounting hole.

[0009] As a further improvement of the present invention, a countersunk hole is provided on the first bottom surface, the upper part of the wedge-shaped adjusting column is located in the countersunk hole, and the countersunk hole is connected to the mounting hole.

[0010] As a further improvement of the present invention, the fastener is a plurality of countersunk bolts, which are arranged linearly along the length direction of the grease outlet.

[0011] As a further improvement of the present invention, the mounting groove is stepped, and the depth of the region near the ointment outlet is greater than the depth of the region near the second bottom surface.

[0012] As a further improvement of the present invention, the mounting groove shares an edge with the second bottom surface.

[0013] As a further improvement of the present invention, the lower surface of the first bottom surface protrudes beyond the lower surface of the second bottom surface.

[0014] The beneficial effects of this invention are: 1. By adjusting the mechanical structure of the screw and the wedge-shaped adjusting column, the rotational motion of the screw can be precisely converted into a small displacement in the vertical direction of the adjusting plate, so as to achieve high-precision and linear adjustment of the local gap size between the adjusting plate and the lower hub, effectively compensating for the uneven paste application caused by plate deformation and equipment error.

[0015] Second, by setting multiple countersunk bolts for rigid fixation on one side of the adjustment plate, and using a screw to push on the other side to achieve elastic deformation adjustment, the structure is stable. After adjustment, the self-locking property of the adjustment screw and the tightening force of the bolt can ensure that the position of the adjustment plate remains stable for a long time without the need for frequent calibration.

[0016] Third, by using high-toughness titanium alloy for the adjustment plate, it has good fatigue resistance, corrosion resistance and dimensional stability, and can adapt to the acidic environment of lead paste and long-term equipment vibration, thus ensuring the long-term accuracy of adjustment.

[0017] Fourth, the stepped design of the mounting slot, the fit between the adjusting column and the countersunk hole, and the design of the mounting slot and the second bottom surface sharing the same edge all take into account the manufacturability, making the manufacturing, assembly and subsequent maintenance of the parts more convenient. Attached Figure Description

[0018] Figure 1 This is an exploded schematic diagram of the bottom structure of the lead paste hopper described in this invention; Figure 2 A cross-sectional view of the exploded structure of a lead paste container.

[0019] Figure 3 This is a cross-sectional view of the lead paste container during operation.

[0020] Figure 4 This is a schematic diagram of the structure when the adjusting plate is in contact with the adjusting screw.

[0021] Figure 5 This is a schematic diagram of the protruding structure of the adjusting plate after the adjusting bolt is screwed in.

[0022] Figure 6 This is a schematic diagram of the external structure during operation. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0024] like Figures 1 to 5 As shown, the present invention provides a lead-acid battery paste container with a leveling device, which mainly includes a paste container body 10 (the structure of the paste container and the paste application structure of the paste container and the hub are existing technologies and will not be described in detail in this patent) and an adjustment device 20 integrated at its bottom for fine-tuning the paste thickness.

[0025] The bottom plate 101 of the lead paste hopper body 10 is generally elongated and divided into an adjacent first bottom surface 1011 and a second bottom surface 1012 along the conveying direction of the grid. The lower surface of the first bottom surface 1011 is lower than the lower surface of the second bottom surface 1012, forming a stepped structure. An elongated paste outlet 102 is provided on the first bottom surface 1011, through which lead paste is extruded. An installation groove 10111 is machined on the first bottom surface 1011 between the paste outlet 102 and the second bottom surface 1012. In this embodiment, the installation groove 10111 is designed as a step, with the part of the groove near the paste outlet 102 being deeper and the part near the second bottom surface 1012 being shallower. At the same time, the side of the installation groove 10111 adjacent to the second bottom surface 1012 shares a boundary, which facilitates processing.

[0026] A long strip-shaped adjusting plate 103 is installed in the mounting groove 10111 using countersunk bolts. The adjusting plate 103 is preferably made of high-toughness titanium alloy to provide good elasticity and durability. After installation, the lower surface of the adjusting plate 103 is flush with the lower surface of the first bottom surface 1011. On the side of the adjusting plate 103 near the grease outlet 102, a row of countersunk bolt holes is formed along its length. The countersunk bolts are used to securely connect the adjusting plate 103 to the bottom of the deeper mounting groove on that side, achieving rigid fixation. On the upper surface of the adjusting plate 103 near the second bottom surface 1012, a plurality of wedge-shaped adjusting posts 1031 are provided. In this embodiment, three are used as an example. The wedge-shaped adjusting post 1031 has an inclined guide slope that faces the direction of the second bottom surface 1012. Correspondingly, on the first bottom surface 1011, a countersunk hole 10112 is machined for each wedge-shaped adjusting post 1031 to accommodate the upper part of the wedge-shaped adjusting post 1031.

[0027] On the end face of the second bottom surface 1012, a plurality of mounting holes 104 are horizontally provided along the length of the lead paste container. The number and position of the mounting holes 104 correspond one-to-one with the wedge-shaped adjusting column 1031. Each mounting hole 104 horizontally penetrates the end wall of the second bottom surface 1012 and is connected to the internal space of the corresponding countersunk hole 10112 and mounting groove 10111. For easy adjustment, the core of the leveling device 20 is the adjusting screw 201. The adjusting screw 201 is screwed into the mounting hole 104 by threaded engagement. The mounting hole 104 can be a smooth hole in one part and a threaded hole in the other part. The end of the adjusting screw 201 that extends into the mounting groove 10111 is processed into a conical shape.

[0028] The working principle of this device is as follows: like Figure 6 As shown in Figure A, when all adjusting screws 201 are turned out to the appropriate position, and their conical ends are not in contact with or only slightly in contact with the wedge-shaped adjusting post 1031, the adjusting plate 103 remains flat under the tightening of the countersunk bolts, and its lower surface is flush with the first bottom surface 1011. When a pre-production inspection detects that the coated electrode plate is too thick in width of lead paste, the operator uses a tool to screw in the adjusting screw 201 at the corresponding position. Figure 6As shown in B and C, the adjusting screw 201 screws into the mounting groove 10111, and its conical end gradually presses against the inclined surface of the corresponding wedge-shaped adjusting column 1031. Since the side of the adjusting plate 103 near the outlet is rigidly fixed by bolts, under the action of horizontal thrust, the inclined surface of the wedge-shaped adjusting column 1031 decomposes the horizontal thrust, generating a vertically upward component force. This component force forces this part of the adjusting plate 103 to overcome the material elasticity and the friction between it and the shallower part of the mounting groove 10111, producing a slight convex deformation. This convex deformation directly reduces the friction between the lower surface of the adjusting plate 103 and the grid. The spacing between the screws reduces the thickness of the lead paste. Because the amount of screwing in the adjusting screw 201 and the amount of protrusion of the adjusting plate 103 are proportionally related by the slope of the wedge-shaped inclined surface, effective thickness control is achieved. At the same time, multiple adjusting points set along the length of the lead paste hopper can independently adjust the height of the gap at different positions, ultimately achieving "leveling" of the gap at the entire outlet, ensuring uniform distribution of lead paste along the thickness of the grid. When the adjusting screw 201 is screwed out in the opposite direction, the protrusion can be restored under the action of the elastic restoring force of the adjusting plate 103 and the pressure of the lead paste. This invention can achieve a precise adjustment range of 0 to 3.5 mm.

[0029] Although the present invention has been described in detail through the above embodiments, those skilled in the art can make changes and modifications to the implementation methods without departing from the principles and spirit of the present invention. All such changes and modifications should fall within the protection scope of the present invention.

Claims

1. A lead-acid battery paste container with a leveling device, comprising a paste container body (10), wherein the bottom plate (101) of the paste container body (10) is provided with a paste outlet (102), characterized in that, The base plate (101) is provided with a first bottom surface (1011) and a second bottom surface (1012) in sequence along the conveying direction of the grid, and the paste outlet (102) is provided on the first bottom surface (1011); An installation groove (10111) is provided on the first bottom surface (1011), and an adjustment plate (103) is installed in the installation groove (10111). After the adjustment plate (103) is installed, its lower surface is flush with the first bottom surface (1011). The adjusting plate (103) is fixedly connected to the first bottom surface (1011) on the side near the ointment outlet (102) by fasteners, and its other side away from the ointment outlet (102) is connected to an adjusting device (20). At least one horizontal mounting hole (104) is provided on the end face of the second bottom surface (1012), and the mounting hole (104) communicates with the internal space of the mounting groove (10111); The adjusting device (20) includes an adjusting screw (201), which is threaded into the mounting hole (104), and its end extending into the mounting groove (10111) is a tapered end; When the adjusting screw (201) is screwed in, its tapered end can push against the adjusting plate (103), causing the corresponding part of the adjusting plate (103) to protrude relative to the first bottom surface (1011).

2. A lead-acid battery paste container with a leveling device according to claim 1, characterized in that, The regulating plate (103) is made of titanium alloy.

3. A lead-acid battery paste container with a leveling device according to claim 1, characterized in that, The adjustable plate (103) can be raised within an adjustment range of 0 to 3.5 mm.

4. A lead-acid battery paste container with a leveling device according to claim 1, characterized in that, The upper surface of the adjusting plate (103) away from the ointment outlet (102) is provided with a wedge-shaped adjusting post (1031), the wedge-shaped adjusting post (1031) has an inclined surface, the inclined surface is set towards the mounting hole (104).

5. The lead-acid battery paste container with a leveling device according to claim 4, characterized in that, A countersunk hole (10112) is provided on the first bottom surface (1011), and the upper part of the wedge-shaped adjusting column (1031) is located in the countersunk hole (10112). The countersunk hole (10112) is connected to the mounting hole (104).

6. A lead-acid battery paste container with a leveling device according to claim 1, characterized in that, The fastener is a plurality of countersunk bolts, which are arranged linearly along the length of the grease outlet (102).

7. A lead-acid battery paste container with a leveling device according to claim 1, characterized in that, The mounting groove (10111) is stepped, and the depth of the area near the ointment outlet (102) is greater than the depth of the area near the second bottom surface (1012).

8. A lead-acid battery paste container with a leveling device according to claim 1, characterized in that, The mounting groove (10111) shares an edge with the second bottom surface (1012).

9. A lead-acid battery paste container with a leveling device according to any one of claims 1 to 8, characterized in that, The lower surface of the first bottom surface (1011) protrudes from the lower surface of the second bottom surface (1012).

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