Punching tab pneumatic flattening device for lithium battery laminated sheet

Abstract

The utility model discloses a lithium battery lamination die cutting tab pneumatic flattening device, including horizontal adjustment horizontal shift support, base, the one side symmetry of horizontal adjustment horizontal shift support is opened as screw hole no.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery manufacturing equipment technology, specifically to a pneumatic leveling device for die-cutting electrode tabs of lithium battery laminations. Background Technology

[0002] Existing lithium battery tab flattening devices have the following drawbacks: Complex structure: relying on precision slide rails and servo motors to adjust the nozzle position, resulting in high manufacturing costs (≥500,000 RMB per unit); Difficult maintenance: nozzle replacement requires disassembling multiple sets of bolts, taking ≥30 minutes; Single-chamber design results in insufficient airflow uniformity (<85%) under high-speed conditions, leading to a tab folding rate ≥0.5%; Traditional blowing scheme: using a single tube or circular nozzle, directly impacting the tab surface with compressed air, relying on manual experience to adjust the blowing angle and pressure. Fixed bracket + manual adjustment valve.

[0003] In summary, the existing technology has the following disadvantages: 1) Poor airflow uniformity (measured ≤70%), electrode tab folding rate >1%; 2) Low efficiency in structural installation and adjustment (changeover time > 30 minutes); 3) Cannot be adapted to high-speed production lines (≥100PPM); Therefore, a pneumatic leveling device for die-cutting electrode tabs of lithium battery stacking is required. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a pneumatic leveling device for die-cutting electrode tabs of lithium batteries. The purpose is to achieve uniform adjustment of high-speed blowing airflow, improve the efficiency of structural installation and adjustment, and adjust in both horizontal and vertical directions. Through the uniformity of airflow and the adjustable installation structure, it can be adapted to electrode tab widths of different products, thus achieving compatibility with high-speed electrode tab production lines.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a pneumatic leveling device for die-cutting tabs of lithium battery laminations, comprising a horizontally adjustable transverse support and a base. One side of the horizontally adjustable transverse support is symmetrically provided with a screw hole, and the other side of the horizontally adjustable transverse support is provided with an opening. The horizontally adjustable transverse supports on both sides of the opening are symmetrically provided with elongated holes. The base is formed by bending sheet metal. The top of the base is provided with an elongated hole, and the bottom of the base is provided with a screw hole. The side of the horizontally adjustable transverse support near the screw hole is located on the upper part of the base and is arbitrarily connected to the elongated hole through the screw hole. An up-and-down adjustable transverse support is provided inside the opening. The sides of the up-and-down adjustable transverse support are provided with elongated holes, which are arbitrarily connected to the elongated holes in both the longitudinal and transverse directions. A nozzle is installed on the up-and-down adjustable transverse support by bolts. The nozzle has a hollow box structure. The top of the nozzle, near the up-and-down adjustable transverse support, is provided with an air inlet, and the bottom of the nozzle, away from the up-and-down adjustable transverse support, is provided with an air-blowing plate assembly.

[0006] Preferably, the base includes a flat plate, a first fixing plate, and a second fixing plate. The first fixing plate and the second fixing plate are installed on opposite sides of the flat plate. The first fixing plate faces upward and has an elongated hole, while the second fixing plate faces downward and has a screw hole.

[0007] Preferably, the horizontal adjustment transverse support is configured as a rectangular trough plate structure.

[0008] Preferably, the vertical adjustment transverse support is configured as a rectangular groove plate structure, and fixed plates three are symmetrically arranged on both sides of the rear of the vertical adjustment transverse support, with elongated holes three opened along the longitudinal direction on the fixed plates three.

[0009] Preferably, the air blowing plate assembly is configured as a honeycomb-shaped guide plate.

[0010] Preferably, the air blowing plate assembly is configured with air blowing holes evenly spaced on the side of the bottom of the nozzle away from the vertical adjustment horizontal movement bracket.

[0011] In summary, this utility model provides a pneumatic leveling device for die-cutting electrode tabs of lithium battery stacking. This utility model patent uses screw hole one and elongated hole two for fixing with wing screws. Screw hole one and elongated hole two can be freely adjusted by 60mm in the horizontal direction, basically covering the current electrode tab width. By symmetrically opening elongated hole one on the horizontal adjustment transverse support and symmetrically opening elongated hole three on the vertical adjustment transverse support, elongated hole one and elongated hole three can be freely adjusted by 60mm in the front-to-back direction and freely adjusted in angle, realizing the adjustable installation efficiency of vertical and horizontal adjustment transverse supports, realizing different blowing angle adjustment, and meeting the requirements of adapting to different high-speed airflow acting on the electrode tab surface.

[0012] The nozzle is fixed to an adjustable horizontal support, and its angle and position are adjusted by moving the support up and down. The high-speed airflow generated by the nozzle acts on the tab surface, creating dynamic pressure that forces the warped tab to conform to the substrate. Evenly distributed airflow ensures uniform stress on the tab, preventing localized deformation and improving flattening consistency. This non-contact process avoids mechanical damage, laying the foundation for subsequent lamination and soldering processes.

[0013] By adjusting the vertical and horizontal sliding brackets to improve installation efficiency, and by fixing the nozzle to the vertical sliding brackets to improve the blowing angle and the uniformity of the high-speed airflow acting on the tab surface, the advantages of adapting to high-speed production lines for tabs are achieved. This greatly changes the current technical problems of high tab folding rate, low structural installation and adjustment efficiency, and inability to adapt to high-speed production lines. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the pneumatic leveling device for the electrode tabs of this utility model; Figure 2 This is a schematic diagram of the forward structure of the pneumatic leveling device for the electrode tabs of this utility model; Figure 3 This is a schematic diagram of the base structure of this utility model; Figure 4 This is a schematic diagram of the vertically adjustable horizontal sliding support structure of this utility model; Figure 5 This is a schematic diagram of the mouthpiece structure of this utility model; In the diagram: 1. Horizontal adjustment transverse support; 2. Base; 3. Screw hole 1; 4. Through hole 4; 5. Long strip hole 1; 6. Screw hole 2; 7. Vertical adjustment transverse support 11; 12. Long strip hole 3; 13. Nozzle; 14. Air inlet; 15. Flat plate; 16. Fixing plate 1; 17. Fixing plate 2; 21. Fixing plate 3; 22. Honeycomb guide plate; 23. Air inlet. Detailed Implementation

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

[0016] like Figures 1 to 5 As shown: This utility model relates to a pneumatic leveling device for die-cutting electrode tabs in lithium battery laminations. It addresses the technical problems of poor airflow uniformity, high electrode tab folding rate, and low adjustment efficiency, as well as the inability to adapt to high-speed production lines due to structural limitations and a single airflow pattern. Therefore, the patented structure of this utility model includes a horizontally adjustable transverse support 1 and a base 2. One side of the horizontally adjustable transverse support 1 has symmetrically formed screw holes 3, and the other side has an opening 4. Elongated holes 5 are symmetrically formed on both sides of the opening 4. The base 2 is formed by bending sheet metal. An elongated hole 6 is formed on the top of the base 2, and screw holes are formed on the bottom of the base 2. 2.7. The horizontally adjustable transverse support 1 is located on the upper part of the base 2 near the screw hole 3 and is adjustablely connected to the elongated hole 5 through the screw hole 3. The opening 4 is equipped with a vertically adjustable transverse support 11. The two sides of the vertically adjustable transverse support 11 are provided with elongated holes 3 12. The elongated holes 3 12 are adjustablely connected to the elongated holes 2 6 in the longitudinal and transverse directions. The nozzle 13 is installed on the vertically adjustable transverse support 11 by bolts. The nozzle 13 adopts an integrated cast aluminum alloy air chamber structure. The top of the nozzle 13 is opened as an air inlet 14 on the side near the vertically adjustable transverse support 11. The bottom of the nozzle 13 is provided on the side away from the vertically adjustable transverse support 11 with an air blowing plate assembly.

[0017] The operating principle is as follows: The horizontal adjustment transverse support 1 and the base 2 are fixed by screw hole 3 and elongated hole 6 with wing screws. Screw hole 3 and elongated hole 6 can be freely adjusted by 60mm in the horizontal direction, which basically covers the current product tab width. The vertical adjustment transverse support 11 and the horizontal adjustment transverse support 1 are installed by symmetrically opening elongated hole 5 on the horizontal adjustment transverse support 1 and symmetrically opening elongated hole 3 12 on the vertical adjustment transverse support 11. Elongated hole 5 and elongated hole 3 12 can be freely adjusted by 60mm in the front-to-back direction and freely adjusted in angle. Elongated hole 5 and elongated hole 3 12 are connected by wing screws. The nozzle 13 is fixed to the vertically adjustable horizontal sliding bracket 11, and the angle and position of the nozzle 13 are adjusted by adjusting the vertically adjustable horizontal sliding bracket 11. The air inlet 14 at the top of the nozzle 13 is perpendicularly distributed to the aluminum alloy air chamber inside the nozzle 13, so that the airflow entering through the air inlet 14 is evenly distributed inside the nozzle 13. The resulting high-speed airflow is evenly applied to the surface of the tab by the air blowing plate assembly, generating dynamic pressure and forcing the warped tab to conform to the substrate. The evenly distributed airflow ensures uniform force on the tab, prevents local deformation, and improves the consistency of flattening. Non-contact processing avoids mechanical damage and lays the foundation for subsequent lamination and welding processes.

[0018] In at least one embodiment, to ensure the support and installation of the horizontally adjustable transverse support 1, the base 2 adopts a structure including a flat plate 15, a first fixing plate 16, and a second fixing plate 17. The first fixing plate 16 and the second fixing plate 17 are installed on both sides of the flat plate 15 in opposite directions. The first fixing plate 16 is arranged facing upward and has an elongated hole 6, while the second fixing plate 17 is arranged facing downward and has a screw hole 7. The elongated hole 6 can be horizontally adjustable with the horizontally adjustable transverse support 1, thereby improving the installation and adjustment efficiency to meet the different requirements of the product's tab width.

[0019] In at least one embodiment, the horizontal adjustment transverse support 1 is preferably configured as a rectangular groove plate structure to improve the load-bearing capacity of the horizontal adjustment transverse support 1.

[0020] In at least one embodiment, to support the mouthpiece 13, a rectangular groove-shaped plate structure is used for the vertical adjustment transverse support 11. Fixing plates 21 are symmetrically arranged on both sides of the rear of the vertical adjustment transverse support 11. Long strip holes 12 are opened on the longitudinal direction of the fixing plates 21. The long strip holes 1 and 22 can be freely adjusted in the front-back direction by 60mm and in the angle, so as to realize the adjustable installation efficiency of the vertical adjustment transverse support 11 and the horizontal adjustment transverse support 1, realize different blowing angle adjustment, and meet the needs of adapting to different high-speed airflows acting on the surface of the ear.

[0021] In at least one embodiment, the air blowing plate assembly is configured as a honeycomb baffle 22 to achieve uniform airflow adjustment on the tabs, thereby reducing the tab folding rate.

[0022] In at least one embodiment, the air blowing plate assembly is configured with air blowing holes 23 evenly opened on the side of the bottom of the nozzle 13 away from the vertical adjustment transverse support 11. The uniform distribution of the air blowing holes 23 achieves uniform airflow and adapts to the air blowing needs of different tab widths.

[0023] The embodiments described in this utility model are for illustrative purposes only and do not constitute a limitation on the scope of the claims. Other substantially equivalent substitutions that can be conceived by those skilled in the art are all within the protection scope of this utility model.

Claims

1. A pneumatic leveling device for die-cutting electrode tabs of lithium battery laminations, characterized in that, The system includes a horizontally adjustable transverse support (1) and a base (2). One side of the horizontally adjustable transverse support (1) is symmetrically provided with screw holes (3), and the other side of the horizontally adjustable transverse support (1) is provided with an opening (4). The horizontally adjustable transverse support (1) on both sides of the opening (4) is symmetrically provided with elongated holes (5). The base (2) is formed by bending through sheet metal. The top of the base (2) is provided with an elongated hole (6), and the bottom of the base (2) is provided with screw holes (7). The side of the horizontally adjustable transverse support (1) closest to the screw holes (3) is located on the upper part of the base (2) and is connected to the elongated holes through the screw holes (3). One (5) is a position-adjustable connection. The opening (4) is equipped with an up-and-down adjustable transverse support (11). The two sides of the up-and-down adjustable transverse support (11) are set with elongated holes three (12). The elongated holes three (12) and elongated holes two (6) are adjustable in the longitudinal and transverse directions. The mouthpiece (13) is installed on the up-and-down adjustable transverse support (11) by bolts. The mouthpiece (13) is set with a hollow box structure. The top of the mouthpiece (13) is opened as an air inlet (14) on the side of the up-and-down adjustable transverse support (11). The bottom of the mouthpiece (13) is set as an air blowing plate assembly on the side away from the up-and-down adjustable transverse support (11).

2. The pneumatic leveling device for die-cutting electrode tabs of lithium battery laminations according to claim 1, characterized in that, The base (2) includes a flat plate (15), a first fixing plate (16), and a second fixing plate (17). The first fixing plate (16) and the second fixing plate (17) are installed on both sides of the flat plate (15) in opposite directions. The first fixing plate (16) is set in the upward direction and has a long hole (6). The second fixing plate (17) is set in the downward direction and has a screw hole (7).

3. The pneumatic leveling device for die-cutting electrode tabs of lithium battery laminations according to claim 1, characterized in that, The horizontal adjustment transverse support (1) is set in a rectangular groove plate structure.

4. The pneumatic leveling device for die-cutting electrode tabs of lithium battery laminations according to claim 1, characterized in that, The vertical adjustment transverse support (11) is set in a rectangular groove plate structure. The three fixed plates (21) are symmetrically set on both sides of the rear of the vertical adjustment transverse support (11). The three fixed plates (21) have long strip holes (12) along the longitudinal direction.

5. The pneumatic leveling device for die-cutting electrode tabs of lithium battery laminations according to claim 1, characterized in that, The air blowing plate assembly is configured as a honeycomb baffle (22).

6. The pneumatic leveling device for die-cutting electrode tabs of lithium battery laminations according to claim 1, characterized in that, The air blowing plate assembly is configured with air blowing holes (23) evenly opened on the side of the bottom of the nozzle (13) away from the vertical adjustment horizontal movement bracket (11).

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