Storage battery busbar cast-weld lead immersion device

Abstract

The utility model discloses a storage battery busbar cast-weld lead immersion device which comprises a lead pan, a mold lead immersion mechanism is arranged above the lead pan and comprises a lifting plate, a bearing piece used for bearing a mold is connected to the lower portion of the lifting plate, and an oxidation film scraper blade which ascends and descends along with the lifting plate is arranged between the lifting plate and the bearing piece. The oxidation film scraper is connected with a driving mechanism for driving the oxidation film scraper to move along the surface of the lead liquid, a residual liquid scraper matched with the upper surface of the die is arranged on one side of the lifting plate and above the moving path of the die, and a lifting driving part for controlling the residual liquid scraper to ascend and descend is arranged at the upper end of the residual liquid scraper. After the cast-weld mold is immersed in lead and before the cast-weld mold is lifted, an oxidation film formed on the liquid surface above the mold after a cavity is fully filled with lead liquid can be scraped, the oxidation film is prevented from influencing the quality of a busbar, the quality of a storage battery is further improved, the moving path in the traction process of the mold is fully utilized, and the production efficiency is improved. Therefore, the residual liquid scraping plate works while being dragged, waiting time is shortened, and working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of storage battery production technology, specifically to a storage battery busbar casting and lead-immersion device. Background Technology

[0002] In lead-acid battery production, the casting and welding mold is a key piece of equipment for achieving electrode group welding. It consists of a plate and two traction holes located on one side of the plate. In the traditional process, the casting and welding mold needs to be immersed in molten lead first. After the lead fills the cavity, the mold is raised, and excess lead is scraped off the surface of the mold using a residual liquid scraper. Finally, it is cooled and demolded to form a busbar.

[0003] Existing lead immersion equipment has the following two problems:

[0004] Traditional lead immersion equipment uses an open lead pot design. When the molten lead comes into contact with oxygen in the air, an oxide film forms on its surface. Although the lower end of the mold breaks this oxide film when immersed in the pot, another oxide film forms on the surface while the molten lead is filling the cavity. Existing lead immersion equipment neglects the active removal of this oxide film. As the mold rises, this oxide film breaks and adheres to the upper surface of the mold. The adhesion between the oxide film and the mold surface is stronger than that of pure molten lead. The residual liquid scraper can only remove the liquid lead and cannot effectively remove this oxide film. This results in lead oxide particles being trapped in the oxide film in the manifold, causing defects such as porosity and poor soldering.

[0005] In existing lead immersion equipment, the residual liquid scraper is usually controlled by an independent drive mechanism, requiring a separate scraper movement track to be set on the side of the lead pot, and the drive mechanism occupies horizontal space. Furthermore, in current busbar casting and welding processes, a liftable battery inverting device is configured on one side of the lead immersion equipment, and the two work together via a traction and translation component. For example, Chinese patent CN202323215811.7, titled "An Automatic Lead-Acid Battery Casting and Welding Machine," describes such machines where a hook engages the traction hole of the mold to achieve traction, pushing the mold to the loading position of the lead immersion equipment and then moving it to the battery location after casting and welding. However, existing technology does not fully utilize the movement path during mold traction; instead, it separates the action of the residual liquid scraper from mold traction, requiring the scraper to remove excess lead before the mold can be moved, increasing equipment waiting time and reducing work efficiency. Utility Model Content

[0006] The purpose of this utility model is to provide a battery busbar casting and welding lead immersion device, which can scrape off the oxide film formed on the liquid surface above the mold while waiting for the lead liquid to fully fill the cavity after the casting and welding mold is immersed in lead and before it is lifted, so as to avoid the oxide film affecting the quality of the busbar and thus improve the quality of the battery. In addition, it makes full use of the movement path during the mold traction process, so that the residual liquid scraper can work at the same time as traction, reducing waiting time and improving work efficiency.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a lead-immersion device for casting and welding a battery busbar, comprising a lead pot, a mold lead-immersion mechanism above the lead pot, the mold lead-immersion mechanism comprising a lifting plate, a support member for supporting the mold connected below the lifting plate, an oxide film scraper that moves up and down with the lifting plate between the lifting plate and the support member, the oxide film scraper being connected to a driving mechanism for moving along the surface of the lead liquid, a residual liquid scraper cooperating with the upper surface of the mold on one side of the lifting plate above the mold moving path, and a lifting drive member controlling its raising and lowering at the upper end of the residual liquid scraper.

[0008] A further improvement of this utility model is that the lifting drive component is disposed on one side of the lifting plate, the telescopic end of the lifting drive component is vertically downward and the residual liquid scraper is disposed thereon, the length direction of the residual liquid scraper is arranged along the width direction of the mold, and the extension length of the scraping end of the residual liquid scraper is greater than the maximum width of the mold.

[0009] A further improvement of this utility model is that a connecting plate is provided between the residual liquid scraper and the lifting drive component, the connecting plate is connected to the telescopic end of the lifting drive component, and the residual liquid scraper is detachably connected to the connecting plate.

[0010] A further improvement of this utility model is that the connecting plate is elastic and is inclined.

[0011] A further improvement of this utility model is that the driving mechanism includes a linear driver disposed on the lifting plate. The telescopic end of the linear driver is disposed in the vertical direction and connected to a flexible transmission component. The oxide film scraper is fixedly connected to the flexible transmission component through a connector. A guide structure is provided below the lifting plate and above the oxide film scraper. The guide structure converts the transmission direction of the flexible transmission component from the vertical direction to the horizontal direction, so that the oxide film scraper moves laterally along the surface of the lead liquid.

[0012] A further improvement of this utility model is that the guiding structure includes a guide bend, the flexible transmission component is partially inserted inside the guide bend and changes from a vertical direction to a horizontal direction along its bending path, the end of the guide bend is provided with a supporting arc plate, and the flexible transmission component moves along the length direction of the supporting arc plate after passing through the guide bend.

[0013] A further improvement of this utility model is that the guide bend includes a vertical section and an arc-shaped bending section, wherein the radius of curvature R of the arc-shaped bending section is more than twice the diameter of the flexible transmission component.

[0014] A further improvement of this utility model is that the two sides of the supporting arc plate are symmetrically provided with guide rods parallel to it, the connecting member is a horizontal bar set above the supporting arc plate, the lower end of the horizontal bar is fixedly connected to the flexible transmission member, and the two ends of the horizontal bar are slidably connected to the two guide rods.

[0015] A further improvement of this utility model is that the supporting component is connected to the lower end of the lifting plate by four vertical rods, with the two ends of each guide rod fixed to two vertical rods on the same side and arranged parallel to the supporting arc plate.

[0016] A further improvement of this utility model is that the flexible transmission component is a steel wire flexible shaft.

[0017] The beneficial effects of this utility model are as follows:

[0018] This invention, by setting up an oxide film scraper and a driving mechanism, can scrape off the oxide film formed on the liquid surface above the mold after the casting mold is immersed in lead and before it is lifted, thus preventing the oxide film from affecting the busbar quality and improving the quality of the battery.

[0019] This invention features a residual liquid scraper that mates with the upper surface of the mold on one side of the lifting plate and above the mold's moving path. The upper end of the residual liquid scraper is equipped with a lifting drive component that controls its raising and lowering. This fully utilizes the moving path during the mold's traction process, allowing the residual liquid scraper to operate while being pulled, reducing waiting time and improving work efficiency.

[0020] In this invention, the lifting drive component is vertically arranged, which reduces the occupation of horizontal space compared to the horizontally arranged drive component in the prior art, and is suitable for compact casting and welding production line layouts.

[0021] In this invention, the scraping end of the residual liquid scraper extends beyond the maximum width of the mold, ensuring that the scraper can cover the entire working area of ​​the mold. This effectively removes residual lead liquid from the upper surface of the mold, preventing uneven cooling caused by localized lead liquid accumulation. Furthermore, the detachable design of the residual liquid scraper and connecting plate facilitates replacement of the scraper.

[0022] The connecting plate of this utility model is elastic, which causes the scraper to deform slightly when it contacts the mold surface, adapting to the flatness error of the mold and ensuring uniform scraping pressure. The inclined setting allows the scraper blade to make gradual contact with the mold surface, which reduces the resistance to lead peeling compared to vertical scraping.

[0023] This invention utilizes a cylinder, a flexible transmission component, and a guide structure to drive the movement of the oxide film scraper. Compared to directly using two cylinders, one vertical and one horizontal, this reduces the number of cylinders used and avoids the horizontal cylinder occupying the side space of the lead pot, making it suitable for the compact layout of the casting and welding production line.

[0024] This invention provides support for the flexible transmission component that passes through the guide bend by setting a supporting arc plate, which prevents the scraper from tilting due to the fluctuation of lead liquid. In addition, the guide rod restricts the swing of the crossbar, which can ensure that the scraper can stably scrape off the oxide film on the liquid surface. Attached Figure Description

[0025] Figure 1 This is a schematic front view sectional view of the structure of this utility model.

[0026] Figure 2 This is a partially enlarged schematic diagram of the main cross-sectional view of the present invention.

[0027] Figure 3 This is a side view sectional diagram of the structure of this utility model.

[0028] Figure 4 This is a schematic diagram showing the positional relationship between the present invention and the traction translation component.

[0029] In the diagram, 1-lead pot, 2-lifting plate, 3-supporting component, 4-oxide film scraper, 5-residue scraper, 6-lifting drive component, 7-connecting plate, 8-linear actuator, 9-flexible transmission component, 10-guide bend, 11-supporting arc plate, 12-guide rod, 13-horizontal bar, 14-vertical bar, 15-casting and welding mold, 16-traction and translation component. Detailed Implementation

[0030] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0031] Example 1: Combination Figures 1-4 It is known that a battery busbar casting and welding lead immersion device includes a lead pot 1, a mold lead immersion mechanism is provided above the lead pot 1, the mold lead immersion mechanism includes a lifting plate 2, a support member 3 for supporting the mold is connected below the lifting plate 2, an oxide film scraper 4 that moves with the lifting plate 2 is provided between the lifting plate 2 and the support member 3, the oxide film scraper 4 is connected to a drive mechanism that drives it to move along the surface of the lead liquid, a residual liquid scraper 5 that cooperates with the upper surface of the mold is provided on one side of the lifting plate 2 and above the mold moving path, and a lifting drive member 6 that controls its raising and lowering is provided at the upper end of the residual liquid scraper 5.

[0032] The lifting drive component 6 is located on one side of the lifting plate 2. The telescopic end of the lifting drive component 6 is vertically downward and is provided with a residual liquid scraper 5. The length direction of the residual liquid scraper 5 is set along the width direction of the mold, and the extension length of the scraping end of the residual liquid scraper 5 is greater than the maximum width of the mold.

[0033] A connecting plate 7 is provided between the residual liquid scraper 5 and the lifting drive component 6. The connecting plate 7 is connected to the telescopic end of the lifting drive component 6, and the residual liquid scraper 5 is detachably connected to the connecting plate 7. Preferably, the residual liquid scraper 5 is a metal plate, such as a 65Mn spring steel plate or a titanium alloy plate.

[0034] The connecting plate 7 is elastic and inclined. Elasticity refers to the ability of a material to fully recover its original shape after being deformed by force. The elastic connecting plate can absorb the instantaneous impact during the mold lifting process and rebound after leaving the mold. Preferably, the connecting plate is made of 65Mn spring steel or 316L stainless steel, and the preferred inclination angle is 15-30°.

[0035] Preferably, lifting guide rods are vertically provided on both sides of the upper end of the connecting plate, and a guide block that cooperates with the lifting guide rod is provided on one side of the lifting plate 2. The lifting guide rod is slidably connected to the sliding hole of the guide block.

[0036] The driving mechanism includes a linear actuator 8 mounted on the lifting plate 2. The telescopic end of the linear actuator 8 is vertically aligned and connected to a flexible transmission component 9. The oxide film scraper 4 is fixedly connected to the flexible transmission component 9 via a connector. A guide structure is located below the lifting plate 2 and above the oxide film scraper 4. The guide structure converts the transmission direction of the flexible transmission component 9 from vertical to horizontal, allowing the oxide film scraper 4 to move laterally along the surface of the molten lead. The oxide film scraper 4 scrapes off the oxide film above the mold after it has been immersed in lead and before it is lifted. The oxide film scraper 3 rises and falls synchronously with the lifting plate 2.

[0037] The guiding structure includes a guide bend 10, and a flexible transmission component 9 is partially inserted inside the guide bend 10 and changes from a vertical direction to a horizontal direction along its bending path. The end of the guide bend 10 is provided with a support arc plate 11. After the flexible transmission component 9 passes through the guide bend 10, it moves along the length direction of the support arc plate 11.

[0038] The guide bend 10 includes a vertical section and an arc-shaped bend section. The radius of curvature R of the arc-shaped bend section is more than twice the diameter of the flexible transmission component 9, meeting the minimum bending radius requirement of the flexible shaft. Preferably, it is more than six times the diameter of the flexible transmission component 9 to facilitate the guidance of the flexible transmission component 9. Preferably, the vertical section and the linear actuator 8 are coaxially arranged. Preferably, the inner wall of the guide bend 10 is provided with a high-temperature resistant lubricating layer, such as a graphite layer, which can reduce the coefficient of friction between the flexible shaft and the tube wall.

[0039] The lifting plate 2 is a conventional mechanism in the prior art capable of lifting the plate. Preferably, the lifting plate 2 includes a support frame, a horizontal fixed plate on one side of the support frame, a drive cylinder on the horizontal fixed plate, and the extension end of the drive cylinder pointing vertically downward and having a lifting plate body thereon. Preferably, the upper end of the lifting plate body has several guide columns that are vertically slidably connected to the horizontal fixed plate.

[0040] The support component is connected below the lifting plate body. The linear actuator 8 can be mounted on the lifting plate body. In this case, the guide bend is fixed to one side of the lifting plate body by a fixing rod. The telescopic end of the linear actuator cooperates with the guide bend to drive the flexible transmission component 9 to move along the guide bend. Optionally, the linear actuator can also be mounted on a horizontal fixed plate. In this case, the guide bend is fixed to one side of the lifting plate body by a fixing rod, and its vertical section is longer to facilitate cooperation with the linear actuator located on the horizontal fixed plate.

[0041] The supporting arc plate 11 has symmetrical guide rods 12 parallel to it on both sides. The connecting member is a crossbar 13 set above the supporting arc plate 11. The lower end of the crossbar 13 is fixedly connected to the flexible transmission member 9, and the two ends of the crossbar 13 are slidably connected to the two guide rods 12.

[0042] Preferably, the two ends of the crossbar 13 are provided with sliding tubes, which are slidably connected to the guide rod 12 through the sliding tubes.

[0043] Preferably, the crossbar 13 has symmetrical connecting holes, and the upper end of the oxide film scraper 4 has a screw that passes through the connecting holes. The screw has fixing nuts located above and below the crossbar 13. Optionally, a connecting block is provided between the crossbar 13 and the flexible transmission component 9, connecting the two. Further optionally, the connecting block is welded to both components.

[0044] Preferably, the crossbar 13 has symmetrical through holes, and the crossbar 13 is fixedly connected to the flexible transmission member 9 through a fixing member connected in the through holes. More preferably, the fixing member is a U-shaped rod, and the crossbar 13 is fixedly connected to the flexible transmission member 9 through the U-shaped rod. After the U-shaped rod wraps around the outside of the flexible transmission member 9, its two ends pass through the two through holes and are locked by nuts, so that the flexible transmission member 9 is clamped between the U-shaped rod and the crossbar 13.

[0045] During the extension and retraction of the linear actuator, the flexible transmission component remains detached from the supporting arc plate. Preferably, the supporting arc plate 11 has arc plate support rods on both sides for supporting it, and the arc plate support rods are connected to the vertical plate 14.

[0046] The support component 3 is connected to the lower end of the lifting plate 2 by four vertical rods 14. The two ends of each guide rod 12 are fixed on two vertical rods 14 on the same side and are set parallel to the supporting arc plate 11.

[0047] The flexible transmission component 9 is a steel wire flexible shaft. Preferably, the linear actuator 4 is a cylinder or an electric actuator. One end of the steel wire flexible shaft is fixedly connected to the telescopic end of the linear actuator.

[0048] The flexible steel wire shaft is a conventional component in the prior art. It is made of multiple layers of wound steel wire and has excellent flexibility and torsional resistance, enabling it to transmit power even when bent. In this invention, the use of the flexible steel wire shaft reduces the need for horizontal cylinders compared to using two cylinders directly, and avoids the horizontal cylinders occupying the side space of the lead pot, thus adapting to the compact layout of the lead immersion production line.

[0049] The surface of the molten lead originally has a layer of molten lead, which is crushed during the mold's descent, resulting in a second oxide film. After the second oxide film is scraped off in this invention, a third oxide film will form on the surface of the molten lead due to the scraping operation of this invention. However, due to the extremely short formation time (less than 5 seconds), the oxide film is very thin and has a loose structure. After the oxide film is scraped off in this invention, the mold will quickly rise and detach from the molten lead (waiting time is less than 5 seconds). During the mold's ascent, the third oxide film will disperse with the fluctuation of the molten lead due to its thinness, with very little adhering to the mold. Furthermore, the adhesion of this oxide film is poor, and it can be subsequently scraped off by the scraper used in the prior art to remove excess molten lead. The impact on the quality of the manifold is negligible.

[0050] The support member 3 includes two symmetrically arranged limiting rods, the distance between which is adapted to the width of the mold, and the opposing surfaces of the two rods are provided with a support protrusion for supporting the bottom of the mold. Preferably, a limiting block is provided on the side of the support protrusion away from the traction and translation component to limit the position where the traction and translation component pushes the casting mold onto the support member.

[0051] This invention can be used in conjunction with existing traction and translation components, but it does not involve any improvement to the traction and translation components. The specified lifting height of the support component in this invention is flush with the conveying surface of the traction and translation component. When the support component is lifted, the traction hole of the casting mold on it is located directly below the hook of the traction and translation component and gradually rises until the vertical part of the hook inserts into the traction hole, thereby achieving traction.

[0052] In the prior art, the casting and welding mold has symmetrically arranged traction holes at one end facing the casting and welding station. The traction and translation assembly includes hooks that are inserted into the traction holes one by one, and a horizontal drive mechanism that drives the hooks to slide horizontally. The horizontal drive mechanism is an electric lead screw structure. The hooks are connected to a lead screw nut seat that slides on the electric lead screw structure. The electric lead screw structure drives the lead screw nut seat to move horizontally, causing the hooks to move, thereby driving the casting and welding mold to move horizontally. See also Figure 4 The left and right movement of the casting and welding mold is achieved by the traction translation component, and the up and down movement of the casting and welding mold is achieved by this utility model.

[0053] The working principle of the lead immersion welding device for battery busbars provided by the utility model is as follows: During operation, the residual liquid scraper 5 of this utility model is raised by the lifting drive component 6 so that the casting mold can be pushed onto the support component 3 of this utility model by the traction translation component. Then, the lifting plate 2 is activated to control the support component 3 and the oxide film scraper 4 to descend. The support component 3 is immersed in the lead pot 1 to wait for the lead liquid to fill the cavity of the casting mold. The oxide film scraper 4 is partially located below the liquid level of the lead pot 1. Within 5 seconds before the lead liquid is completely filled, the linear drive 8 is activated to push the flexible drive component 9 to move along the guide bend 10 to complete a smooth turn from vertical to horizontal, thereby driving the oxide film scraper 4 to move along the surface of the lead liquid and scrape off the oxide film. The scraper's movement trajectory is constrained by the guide rod 12 and the supporting arc plate 11, ensuring that the scraping action is stable and does not deviate. Subsequently, the lifting plate 2 drives the support piece to rise quickly to complete the lead immersion operation of the casting and welding mold. When the support piece is lifted, the traction hole of the casting and welding mold on it is located directly below the hook of the traction and translation component and gradually rises so that the vertical part of the hook is inserted into the traction hole, and then traction can be achieved. When the traction and translation component is tractioning, after the hook passes below the residual liquid scraper 5, the residual liquid scraper 5 descends and contacts the upper surface of the casting and welding mold, scraping off the excess lead liquid on its upper surface when the casting and welding mold moves.

[0054] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A lead-acid battery busbar cast-welding lead immersion device, comprising a lead pot (1), a mold lead immersion mechanism is arranged above the lead pot (1), characterized in that: The mold lead dipping mechanism comprises a lifting plate (2), a supporting element (3) for supporting the mold is connected below the lifting plate (2), an oxide film scraping plate (4) that rises and falls with the lifting plate (2) is arranged between the lifting plate (2) and the supporting element (3), the oxide film scraping plate (4) is connected with a driving mechanism that drives it to move along the surface of the lead liquid, a residual liquid scraping plate (5) that cooperates with the upper surface of the mold is arranged on one side of the lifting plate (2) above the moving path of the mold, and a lifting driving element (6) that controls the lifting of the residual liquid scraping plate (5) is arranged on the upper end of the residual liquid scraping plate (5).

2. A cast-welded lead-acid battery strap assembly as defined in claim 1 wherein: The lifting driving element (6) is arranged on one side of the lifting plate (2), the telescopic end of the lifting driving element (6) is vertically downward, and the residual liquid scraping plate (5) is arranged on the telescopic end, the length direction of the residual liquid scraping plate (5) is arranged along the width direction of the mold, and the extension length of the scraping end of the residual liquid scraping plate (5) is greater than the maximum width of the mold.

3. A cast-welded lead-acid battery strap assembly as defined in claim 2 wherein: A connecting plate (7) is arranged between the residual liquid scraping plate (5) and the lifting driving element (6), the connecting plate (7) is connected to the telescopic end of the lifting driving element (6), and the residual liquid scraping plate (5) is detachably connected to the connecting plate (7).

4. A cast-welded leaded container plate assembly as defined in claim 3 wherein: The connecting plate (7) is elastic and is arranged in an inclined manner.

5. A cast-welded leaded container bus bar assembly as defined in claim 1 or 2 wherein: The driving mechanism comprises a linear driver (8) arranged on the lifting plate (2), the telescopic end of the linear driver (8) is arranged in a vertical direction and is connected with a flexible transmission element (9), the oxide film scraping plate (4) is fixedly connected with the flexible transmission element (9) through a connecting element, a guide structure is arranged below the lifting plate (2) and above the oxide film scraping plate (4), the guide structure converts the transmission direction of the flexible transmission element (9) from the vertical direction to the horizontal direction, so that the oxide film scraping plate (4) moves transversely along the surface of the lead liquid.

6. A cast-welded lead-acid battery strap assembly as defined in claim 5 wherein: The guide structure comprises a guide elbow (10), the flexible transmission element (9) is partially arranged in the guide elbow (10) and is converted from the vertical direction to the horizontal direction along the curved path of the guide elbow (10), the end of the guide elbow (10) is provided with a supporting arc plate (11), and the flexible transmission element (9) moves along the length direction of the supporting arc plate (11) after passing out of the guide elbow (10).

7. A cast-welded lead-acid battery strap assembly as defined in claim 6 wherein: The guide elbow (10) comprises a vertical section and an arc-shaped curved section, and the curvature radius R of the arc-shaped curved section is more than 2 times the diameter of the flexible transmission element (9).

8. A cast-welded lead-acid battery strap assembly as defined in claim 6 wherein: Symmetrical guide rods (12) are arranged on both sides of the supporting arc plate (11) and are parallel to the supporting arc plate (11), the connecting element is a cross rod (13) arranged above the supporting arc plate (11), the lower end of the cross rod (13) is fixedly connected with the flexible transmission element (9), and the two ends of the cross rod (13) are slidingly connected with the two guide rods (12).

9. A cast-welded leaded container plate assembly as defined in claim 8 wherein: The supporting element (3) is connected to the lower end of the lifting plate (2) through four vertical rods (14), the two ends of each guide rod (12) are fixedly connected with two vertical rods (14) on the same side and are arranged in parallel with the supporting arc plate (11).

10. A cast-welded lead-acid battery strap assembly according to any one of claims 6 to 9, wherein: The flexible transmission element (9) is a steel wire flexible shaft.

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