Staggered pole piece burr cleaning device

Abstract

The utility model provides a staggered pole piece burr cleaning device which comprises a dust removal cavity assembly and core blowing assemblies, the core blowing assemblies are provided with swing air ports and fixed air ports, the core blowing assemblies are fixed on two sides of the dust removal cavity assembly, and the swing air ports and the fixed air ports of the core blowing assemblies on the two sides are arranged in a staggered mode. The cut edge of the pole piece passes through the swing air openings and the fixed air openings in the two sides. The air swinging openings and the fixed air openings are arranged in a staggered manner, longitudinal burrs of a pole piece are blown into transverse burrs by utilizing swinging airflow of the air swinging openings, and burrs are removed by utilizing burr ultrasonic airflow which is blown out of the fixed air openings and is vertical to the edge of the pole piece; and the pole pieces can vibrate through the core blowing assembly through the air swinging openings which are formed in a staggered mode, burr stripping is accelerated, and therefore the removing efficiency is further improved.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, and more specifically to an interlaced electrode burr cleaning device. Background Technology

[0002] like Figure 1 As shown, burrs are generated between foil 1 and material area 2 during the electrode cutting process. If these burrs are not cleaned or are not cleaned thoroughly, it can lead to high short-circuit rates and large self-discharge in subsequent lithium batteries, posing significant safety risks to the module. The burrs and edge dust generated during slitting are difficult to detect and handle, and are currently a major challenge in the lithium battery industry.

[0003] Existing technologies remove electrode burrs through cavity flow-induced oscillation, but most of these methods have drawbacks. When high-speed airflow passes through the cavity, it generates strong vibrations, which can cause vibration and fatigue damage to the equipment's structure.

[0004] Chinese patent document CN118180045A, entitled "A Device for Cleaning Electrode Burrs," discloses a device that uses three sequentially connected cavities (first, second, and third cavities). Compressed air or a high-pressure blower generates high-speed airflow that resonates within the core cavity, producing ultrasonic airflow. This allows for non-contact cleaning of burrs without the need for an additional ultrasonic generator. It overcomes the technical deficiency in existing technologies where high-speed airflow passing through cavities causes strong vibrations that lead to structural vibration and fatigue damage. Figure 1 As shown, the ultrasonic deburring fixture 3 is located above the electrode sheet. The ultrasonic airflow acts on the cut area. Transverse burrs are easily removed because they are perpendicular to the airflow direction, while longitudinal burrs 4 are difficult to remove because they are parallel to the airflow direction. Diagonal burrs 5 form an angle with the ultrasonic airflow direction, making them difficult to remove. Therefore, this electrode sheet deburring device has blind spots due to force issues, and thus cannot remove all burrs on the electrode sheet. Utility Model Content

[0005] The technical problem to be solved by this invention is how to completely remove burrs from the electrode sheet.

[0006] This utility model solves the above-mentioned technical problems through the following technical means:

[0007] This utility model provides an interleaved electrode burr cleaning device, including a dust removal chamber assembly and a core air blowing assembly. The core air blowing assembly is provided with an air swing port and a fixed air port. The core air blowing assembly is fixed on both sides of the dust removal chamber assembly, and the air swing port and the fixed air port of the core air blowing assembly on both sides are placed alternately.

[0008] Beneficial effects: This utility model places the cut portion of the electrode sheet in the middle of the two core air blowing components. By staggering the placement of the swing air vents and the fixed air vents, the swing air vents blow the longitudinal or oblique burrs of the electrode sheet into transverse burrs. Then, the fixed air vents blow out ultrasonic airflow perpendicular to the edge of the electrode sheet to remove the burrs. Furthermore, the swing airflow from the staggered swing air vents can be used to blow the electrode sheet to generate vibration, which accelerates the burr removal and further increases the removal efficiency.

[0009] Preferably, the dust removal chamber assembly includes a dust removal chamber mother plate and a dust removal chamber public plate, which are arranged side by side. A groove is provided between the dust removal chamber mother plate and the dust removal chamber public plate for fixing and installing the core air blowing assembly.

[0010] Preferably, the dust removal chamber assembly further includes a dust removal chamber and a dust removal pipe, wherein the dust removal chamber is fixed to the rear side of the dust removal chamber mother plate and the dust removal chamber public plate, and the dust removal pipe is fixed to the lower side of the dust removal chamber.

[0011] Preferably, the core air blowing assembly further includes an air pipe connector and an air blowing chamber, wherein the air pipe connector is connected to the air blowing chamber through an air blowing channel.

[0012] Preferably, the blowing chamber is divided into two pressure chambers, one of which has an outlet for the swing plate as a swing air outlet, and the other pressure chamber has an outlet for a fixed air outlet.

[0013] Preferably, the air blowing channel is sealed by a mounting plate.

[0014] Preferably, the air pipe connector is connected to the air blowing top plate, the air blowing top plate is connected to the air blowing bottom plate, and the air blowing bottom plate is connected to the air blowing channel.

[0015] Preferably, the swing air outlet and the fixed air outlet are fixed on the partition, and the core air blowing component is engaged with both sides of the dust removal chamber component through the partition.

[0016] Preferably, the core air blowing assembly is vertically and side-by-side fixed in the groove of the dust removal chamber assembly.

[0017] Preferably, the outlet of the pressure chamber of the core air blowing assembly on one side is a swing air outlet and a fixed air outlet from top to bottom, and the outlet of the pressure chamber of the core air blowing assembly on the other side is a fixed air outlet and a swing air outlet from top to bottom.

[0018] The advantages of this utility model are:

[0019] This invention uses two core air-blowing components mounted on grooves in the public and female plates of the dust removal chamber. The outlet of the pressure chamber faces the edge of the electrode. From top to bottom, the outlets of the pressure chambers of the core air-blowing components are a swing air outlet and a fixed air outlet, respectively. This staggered placement allows the swing air outlet to blow the longitudinal burrs of the electrode into transverse burrs, while the fixed air outlet blows an ultrasonic airflow perpendicular to the edge of the electrode to remove the burrs. The staggered placement of the swing air outlets on the public and female plates of the dust removal chamber further increases the cleaning efficiency by causing the burrs on the edge of the electrode to vibrate due to the swing airflow generated by the swing air outlets. Attached Figure Description

[0020] Figure 1 This is a schematic diagram illustrating the principle of removing electrode burrs in the prior art.

[0021] Figure 2 This is a schematic diagram of an interlaced electrode burr cleaning device in one embodiment;

[0022] Figure 3 This is a schematic diagram of the dust removal chamber assembly in the embodiment;

[0023] Figure 4 This is a schematic diagram of the core air blowing component in the embodiment;

[0024] Figure 5 This is a schematic diagram of the pressure chamber in the embodiment, where the left figure is a cross-sectional view and the right figure is a schematic diagram of the pressure chamber structure, and P indicates the direction of air blowing;

[0025] Figure 6 This is a schematic diagram of the structure of the pressure chamber outlet in the embodiment;

[0026] Figure 7 This is a vibration diagram of the staggered electrode burr cleaning device in the embodiment;

[0027] Figure 8 This is a schematic diagram illustrating the principle of the staggered electrode burr removal method in this embodiment. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. It should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] according to Figure 2-8 As shown, this embodiment provides an interleaved electrode burr cleaning device, including a dust removal chamber assembly 8 and a core air blowing assembly 7. The core air blowing assembly 7 is vertically and side by side fixed on both sides of the dust removal chamber assembly 8. The core air blowing assembly 7 is provided with an air swing port 212 and a fixed air port 213. The air swing port 212 and the fixed air port 213 of the two core air blowing assemblies 7 are interleaved. The cut edge of the electrode 6 is located in the middle of the two core air blowing assemblies 7, so the cut edge of the electrode 6 can pass through the air swing port 212 and the fixed air port 213.

[0031] like Figure 8 As shown, in this embodiment, the swing air outlet 212 and the fixed air outlet 213 are placed alternately. The swing airflow of the swing air outlet 212 blows the longitudinal or oblique burrs of the electrode plate 6 into transverse burrs. Then, the fixed air outlet 213 blows out ultrasonic airflow perpendicular to the edge of the electrode plate 6 to remove the burrs. The swing airflow generated by the alternately placed swing air outlet 212 can also cause the electrode plate 6 to vibrate, which accelerates the burr removal and further increases the removal efficiency.

[0032] like Figure 3As shown, the dust removal chamber assembly 8 includes a dust removal chamber mother plate 9, a dust removal chamber male plate 10, a dust removal chamber 11, and a dust removal pipe 12. The dust removal chamber mother plate 9 and the dust removal chamber male plate 10 are connected to the dust removal chamber 11. The dust removal chamber mother plate 9 and the dust removal chamber male plate 10 are fixed side by side on the front side of the dust removal chamber 11. The dust removal pipe 12 is connected to the dust removal chamber 11 and is fixed on the lower side of the dust removal chamber 11. The dust removal chamber mother plate 9 has a first groove 91 in the middle of its front side, and the dust removal chamber male plate 10 has a second groove 101 in the middle of its front side. The first groove 91 and the second groove 101 are used to fix and install the core air blowing assembly 7.

[0033] like Figure 4-6 As shown, the core air blowing assembly 7 includes a partition 13, a sealing gasket 14, a first mounting plate 15, an air blowing base plate 16, an air blowing top plate 17, an air pipe connector 18, a second mounting plate 19, an air blowing chamber mounting plate 20, an air blowing chamber 21, and a swing plate 22. The air pipe connector 18 is connected to the air blowing top plate 17 and the air blowing base plate 16 in sequence. The air blowing base plate 16 is connected to the top of two air blowing channels (not shown in the figure) respectively. Both air blowing channels enter through the first mounting plate 15 and the second mounting plate 19. For further sealing, a sealing gasket 14 is placed over the second mounting plate 19. The bottoms of the two air blowing channels are connected to the air blowing chamber 21 via the air blowing chamber mounting plate 20. The air blowing chamber 21 is divided into two independent pressure chambers 211. One pressure chamber 211 has a swing plate 22 that generates an oscillating airflow outlet, called a swing port 212. The other pressure chamber 211 has a direct airflow outlet, called a fixed air outlet 213. The swing port 212 and the fixed air outlet 213 are fixed to the side of the partition plate 13. The air pipe connector 18 is connected to compressed air or a high-pressure blower to generate corresponding airflow and remove burrs from the cut edges of the electrode plate 6.

[0034] The core air blowing assembly 7 is engaged with the first groove 91 of the dust removal chamber mother plate 9 or the second groove 101 of the dust removal chamber public plate 10 by the partition plate 13, so as to connect the core air blowing assembly 7 with the dust removal chamber assembly 8. The two core air blowing assemblies 7 are arranged vertically side by side. The swing air port 212 and the fixed air port 213 fixed by the partition plate 13 on both sides are arranged opposite each other. The cut edge of the electrode plate 6 is fixed in the middle of the swing air port 212 and the fixed air port 213.

[0035] like Figure 7As shown, the outlets of the pressure chamber 211 of the core air blowing assembly 7 on one side of the electrode 6 are, from top to bottom, a swing air outlet 212 and a fixed air outlet 213, respectively. On the other side, the outlets of the pressure chamber 211 of the core air blowing assembly 7 are, from top to bottom, a fixed air outlet 213 and a swing air outlet 212, respectively. The swing airflow blown out through the swing air outlet 212 blows the longitudinal or oblique burrs of the electrode 6 into transverse burrs. The ultrasonic airflow blown out through the fixed air outlet 213, perpendicular to the edge of the electrode 6, removes the burrs. The same principle applies to the other side. In this embodiment, by staggering the swing air outlets 212 on the dust removal chamber public plate 10 and the dust removal chamber mother plate 9, the generated swing airflow can cause the electrode 6 to vibrate, accelerating the burr removal and thus further increasing the cleaning efficiency.

[0036] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A staggered electrode burr cleaning device, characterized in that, It includes a dust removal chamber assembly (8) and a core air blowing assembly (7). The core air blowing assembly (7) is provided with an air swing port (212) and a fixed air port (213). The core air blowing assembly (7) is fixed on both sides of the dust removal chamber assembly (8), and the air swing port (212) and the fixed air port (213) of the core air blowing assembly (7) on both sides are staggered.

2. The staggered electrode burr cleaning device according to claim 1, characterized in that, The dust removal chamber assembly (8) includes a dust removal chamber mother plate (9) and a dust removal chamber male plate (10), which are arranged side by side. A groove is provided between the dust removal chamber mother plate (9) and the dust removal chamber male plate (10), and the core air blowing assembly (7) is fixedly installed in the groove.

3. The staggered electrode burr cleaning device according to claim 2, characterized in that, The dust removal chamber assembly (8) also includes a dust removal chamber (11) and a dust removal pipe (12). The dust removal chamber (11) is fixed to the rear side of the dust removal chamber mother plate (9) and the dust removal chamber public plate (10), and the dust removal pipe (12) is fixed to the lower side of the dust removal chamber (11).

4. The staggered electrode burr cleaning device according to claim 2, characterized in that, The core air blowing assembly (7) also includes an air pipe connector (18) and an air blowing chamber (21), wherein the air pipe connector (18) is connected to the air blowing chamber (21) through an air blowing channel.

5. The staggered electrode burr cleaning device according to claim 4, characterized in that, The blowing chamber (21) is divided into two pressure chambers (211), one of which is equipped with a swing plate (22) with its outlet being a swing air outlet (212), and the other pressure chamber (211) has a fixed air outlet (213) at its outlet.

6. The staggered electrode burr cleaning device according to claim 4, characterized in that, The air blowing channel is sealed by a mounting plate.

7. The staggered electrode burr cleaning device according to claim 4, characterized in that, The air pipe connector (18) is connected to the air blowing top plate (17), the air blowing top plate (17) is connected to the air blowing bottom plate (16), and the air blowing bottom plate (16) is connected to the air blowing channel.

8. The staggered electrode burr cleaning device according to claim 4, characterized in that, The swing air vent (212) and the fixed air vent (213) are fixed on the partition (13), and the core air blowing assembly (7) is engaged with both sides of the dust removal chamber assembly (8) through the partition (13).

9. The staggered electrode burr cleaning device according to claim 8, characterized in that, The core air blowing assembly (7) is vertically and side by side fixed in the groove of the dust removal chamber assembly (8).

10. The staggered electrode burr cleaning device according to claim 5, characterized in that, The outlets of the pressure chamber (211) of the core air blowing assembly (7) on one side are, from top to bottom, a swing air outlet (212) and a fixed air outlet (213), and the outlets of the pressure chamber (211) of the core air blowing assembly (7) on the other side are, from top to bottom, a fixed air outlet (213) and a swing air outlet (212).

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