Die cutting pole piece powder sweeping device

Abstract

The utility model discloses a die cutting pole piece powder sweeping device, and relates to the technical field of pole piece processing. The device comprises a clamping assembly which comprises a first box body, a penetrating opening formed in the first box body, threaded rods connected to the front end and the rear end of the first box body in a threaded mode, and clamping plates rotationally connected to the threaded rods; the cleaning assembly is arranged in the clamping assembly; the cleaning assembly comprises brush rollers rotationally connected to the front end and the rear end of the first box groove. And; the collecting assembly is arranged below the clamping assembly; the collecting assembly comprises a second box body installed on the first box body, a second box groove formed in the second box body, a second support fixed to the inner wall of the second box groove, a first support placed on the second support and a filter screen fixed in the first support. The cleaning assembly and the collecting assembly are arranged, so that the problems that after die cutting of the pole piece, when dust is cleaned and the dust is swept by a brush, the dust is scattered and inhaled by a worker to cause health injury, and meanwhile, the dust is inconvenient to collect are solved.

Description

Technical Field

[0001] This utility model relates to the field of electrode processing technology, and in particular to a powder sweeping device for die-cut electrode sheets. Background Technology

[0002] Die-cut electrode sheets are electrode sheet assemblies manufactured using a precision die-cutting process during the lithium battery manufacturing process. As a core component of lithium batteries, die-cut electrode sheets are typically made by uniformly coating an active material onto a metal foil current collector, followed by multiple precision processing steps.

[0003] During the die-cutting process of lithium battery electrodes, a large amount of dust adheres to the electrodes. Traditional brush cleaning methods, when in contact with the electrode surface, cause electrostatic adsorption between the brush bristles and the electrode, exacerbating the secondary dust re-entrainment. Especially in dry production environments, the dust dispersion range can reach a working radius of 3-5 meters. These suspended particles not only contain heavy metals but may also contain volatile organic compounds produced by the decomposition of binders. Long-term exposure can increase the risk of respiratory diseases and pneumoconiosis among workers.

[0004] Chinese patent discloses a position-adjustable die-cut electrode powder brushing device (authorization announcement number CN218655675U). The patented technology mainly consists of two vertically parallel supports, with a rotating shaft and a lead screw rotatably connected between the two supports. Both the rotating shaft and the lead screw are arranged horizontally. A rotating roller is sleeved on the outer side of the rotating shaft, and a brush is fixed in the middle of the outer side of the rotating roller. An annular groove is opened at the left end of the outer side of the rotating roller, and a moving block is threaded onto the lead screw.

[0005] However, this patent still has shortcomings. In the electrode die-cutting process, the metal foil substrate is punched or slit using a high-precision mold to form electrode sheets of specific shapes and sizes. During this process, micron-sized metal debris and active material dust are generated at the edges and surfaces of the electrode sheets. When using a brush to clean the dust, the dust will scatter and be inhaled by workers, causing health damage. Furthermore, collecting the dust is inconvenient. Therefore, those skilled in the art have provided a dust-cleaning device for die-cut electrode sheets to solve the problems mentioned in the background. Utility Model Content

[0006] 1. Technical Solution

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] This utility model relates to a powder-sweeping device for die-cut electrode sheets, comprising:

[0009] The clamping assembly includes a housing, a through opening on the upper surface of the housing, a groove on the bottom of the inner wall of the through opening, a threaded rod threaded to the front and rear ends of the housing, and a clamping plate rotatably connected to the rear end of the threaded rod.

[0010] The cleaning component is located within the clamping component;

[0011] The cleaning assembly includes brush rollers rotatably connected to the front and rear ends of a tank.

[0012] as well as;

[0013] The collection component is located below the clamping component;

[0014] The collection assembly includes a second box installed on the lower surface of the box body, a second groove formed on the upper surface of the second box body, a second bracket fixed to the inner wall of the second groove, a first bracket placed on the upper surface of the second bracket, and a filter screen fixed inside the first bracket.

[0015] Furthermore, fixing plates are fixed to both sides of the front end of the box, fixing plates are fixed to both sides of the rear end of the box, and support columns are fixed to the lower surface of the fixing plates;

[0016] Specifically, the fixing plate and support enhance the stability of the housing and prevent the electrode from shifting due to vibration of the device during the powder sweeping process.

[0017] Furthermore, the through-hole is connected to the first groove of the box, and the electrode body is inserted into the through-hole and extends into the first groove of the box;

[0018] Specifically, the through-hole and the box groove are connected to form a continuous channel, ensuring that the electrode body can smoothly enter the working area and reduce friction damage.

[0019] Furthermore, slots 2 are respectively opened on both sides of the inner wall of the box groove 1, and insert plates 1 are respectively fixed on both sides of the clamping plate, and insert plates 1 are inserted into slots 2;

[0020] Specifically, the sliding fit between the insertion plate one and the slot two restricts the movement trajectory of the clamping plate, ensuring linear and stable clamping action and preventing electrode misalignment.

[0021] Furthermore, a rotating shaft is fixed to each end of the brush roller, and the rotating shaft is rotatably connected to the inner wall of the box groove. A motor is fixed to the front and rear ends of one side of the box body, and the motor drive end is fixed to one end of the rotating shaft.

[0022] Specifically, the motor directly drives the rotating shaft to rotate the brush roller at high speed, thereby improving the powder sweeping efficiency.

[0023] Furthermore, slot 1 is provided at both the front and rear ends of the lower surface of the box body, and insert plate 2 is fixed on the upper surface of the box body 2, and insert plate 2 is inserted into slot 1;

[0024] Specifically, the insertion design of the second insert plate and the first slot enables quick assembly and disassembly of the second housing, making it easy to empty or replace the filter.

[0025] Furthermore, a pipe is installed on the lower surface of the second housing, an installation groove 2 is opened on the upper surface of the second bracket, an installation groove 1 is opened on the upper surface of the first bracket, and the filter screen is fixed to the inner wall of the installation groove 1.

[0026] Specifically, bracket one is placed on the upper surface of bracket two, which facilitates the installation and disassembly of bracket one and filter screen. The filter screen can collect the impurities that are cleaned out.

[0027] 2. Beneficial effects

[0028] Compared with existing technologies, the advantages of this utility model are:

[0029] This utility model adds a cleaning component to the clamping assembly. When it is necessary to clean the cut electrode sheets, the electrode sheets are inserted into the box groove, the threaded rod is rotated so that the clamping plate clamps and restricts the electrode sheets, and then the motor is started so that the brush roller rotates to clean the electrode sheets.

[0030] At the same time, a collection component is added. When it is necessary to collect the cleaned impurities, the pipe is connected to the fan so that air and the cleaned impurities can be drawn in. The air and impurities pass through the filter screen, which can intercept and collect the impurities.

[0031] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is the front view of the present invention;

[0034] Figure 2 This is a cross-sectional view of the present invention;

[0035] Figure 3 This is a sectional view of one side of the box body of this utility model;

[0036] Figure 4 This is a front sectional view of the housing of this utility model;

[0037] Figure 5 This is a top view of the brush roller of this utility model;

[0038] Figure 6 These are cross-sectional views of the two sides of the box body of this utility model.

[0039] The attached diagram lists the components represented by each number as follows:

[0040] 100. Clamping assembly; 110. Support column; 120. Fixing plate; 130. Threaded rod; 140. Housing 1; 141. Slot 1; 142. Slot 1; 143. Through-hole; 144. Slot 2; 150. Electrode body; 160. Clamping plate; 170. Insert plate 1; 200. Cleaning assembly; 210. Rotating shaft; 220. Brush roller; 230. Motor; 300. Collection assembly; 310. Pipe; 320. Housing 2; 321. Slot 2; 330. Insert plate 2; 340. Filter screen; 350. Bracket 1; 351. Mounting slot 1; 360. Bracket 2; 361. Mounting slot 2. Detailed Implementation

[0041] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0042] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0043] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0044] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0045] Example 1

[0046] Please see Figures 1-5 As shown, this embodiment is a powder sweeping device for die-cut electrode sheets, including,

[0047] The clamping assembly 100 includes a housing 140, a through-hole 143 on the upper surface of the housing 140, a groove 142 on the bottom of the inner wall of the through-hole 143, a threaded rod 130 threaded to the front and rear ends of the housing 140, and a clamping plate 160 rotatably connected to the rear end of the threaded rod 130.

[0048] Cleaning component 200 is located within clamping component 100;

[0049] The cleaning assembly 200 includes a brush roller 220 rotatably connected to the front and rear ends of the trough 142;

[0050] Fixing plates 120 are fixed on both sides of the front end of the box 140, and fixing plates 120 are fixed on both sides of the rear end of the box 140. A support column 110 is fixed on the lower surface of the fixing plate 120.

[0051] The symmetrical fixing plates 120 at the front and rear ends of the housing 140 and the ground support column 110 form a rigid support frame. The lateral extension design of the fixing plate 120 significantly increases the contact area between the housing 140 and the support column 110, so that the device can maintain overall stability when the brush roller 220 is running at high speed.

[0052] The through-hole 143 is connected to the box groove 142, and the electrode body 150 is inserted into the box groove 142 through the through-hole 143.

[0053] The depth design of the slot 142 ensures that after the electrode body 150 is fully submerged, the spacing between its upper and lower surfaces and the bristles of the brush roller 220 remains constant, ensuring uniform powder sweeping force. The edges of the through-hole 143 are rounded or softly wrapped to prevent the edges from curling or scratching due to hard contact during electrode feeding.

[0054] Slots 144 are provided on both sides of the inner wall of the first groove 142. Insert plates 170 are fixed on both sides of the clamping plate 160 and are inserted into slots 144.

[0055] The insert plates 170 extending from both sides of the clamping plate 160 and the slot 144 on the inner wall of the groove 142 form a sliding pair structure. When the threaded rod 130 rotates, the lateral movement of the clamping plate 160 is constrained by the cooperation between the insert plates 170 and the slot 144, and can only move forward or backward along a straight trajectory, thus completely eliminating the risk of deflection during the clamping process.

[0056] The brush roller 220 has a rotating shaft 210 fixed at both ends. The rotating shaft 210 is rotatably connected to the inner wall of the box groove 142. The front and rear ends of one side of the box body 140 are respectively fixed with a motor 230. The driving end of the motor 230 is fixed to one end of the rotating shaft 210.

[0057] The brush roller 220 is rotatably supported by bearings on the sidewall of the trough 142 via two rotating shafts 210 at both ends. The motor 230 drives the rotating shafts 210 via a coupling or direct connection, ensuring stable torque for the brush roller 220. The external placement of the motor 230 facilitates heat dissipation and maintenance, while preventing dust from entering the motor 230. An electronic synchronizer allows the two motors 230 to rotate at the same speed.

[0058] Use the clamping component 100 and the cleaning component 200;

[0059] When cleaning the die-cut electrode sheets, the electrode body 150 is first inserted into the housing 140 through the through-hole 143, allowing it to smoothly enter the working area of ​​the slot 142. Then, the operator rotates the threaded rod 130. Since the threaded rod 130 is threaded to both ends of the housing 140, its rotational motion is converted into linear displacement of the clamping plate 160. During the movement of the clamping plate 160, the insert plates 170 on both sides slide stably along the slots 144 on the inner wall of the slot 142, ensuring that the clamping plate 160 remains parallel and preventing uneven force from causing the electrode body 150 to tilt or experience excessive local pressure. Finally, the clamping plate 160 and the inner wall of the other side of the slot 142 together form a stable clamping structure, keeping the electrode body 150 fixed during the powder sweeping process and preventing displacement or vibration caused by the high-speed rotation of the brush roller 220. After the electrode body 150 is fixed, the motor 230 is started, and the motor 230 drives the brush roller 220 to rotate at high speed through the drive shaft 210. The bristles of the brush roller 220 are in close contact with the surface of the electrode body 150, and continuously scrape the surface of the electrode during rotation, removing dust, debris and other impurities remaining after die-cutting. Since the brush roller 220 is symmetrically arranged along the front and rear ends of the slot 142, the upper and lower surfaces of the electrode body 150 can be cleaned simultaneously, ensuring a uniform and thorough cleaning effect. This achieves the effect of facilitating the cleaning of powder adhering to the die-cut electrode.

[0060] Example 2

[0061] Please see Figure 6 As shown, and;

[0062] The collecting component 300 is positioned below the clamping component 100;

[0063] The collection assembly 300 includes a second box 320 installed on the lower surface of a first box 140, a second box groove 321 opened on the upper surface of the second box 320, a second bracket 360 fixed to the inner wall of the second box groove 321, a first bracket 350 placed on the upper surface of the second bracket 360, and a filter screen 340 fixed inside the first bracket 350.

[0064] Slots 141 are provided at the front and rear ends of the lower surface of the first box 140, and a second insert plate 330 is fixed on the upper surface of the second box 320. The second insert plate 330 is inserted into the slot 141.

[0065] The insert plate 330 on the upper surface of housing 2 320 is snapped into slot 141 at the bottom of housing 1 140. Disassembly is achieved by simply pulling housing 2 320 horizontally, which disengages the insert plate 330 from slot 141, allowing for quick separation of the dust collection chamber. The sealing strip or labyrinth structure design of the insertion surface effectively prevents dust from escaping through the connection gaps.

[0066] A pipe 310 is installed on the lower surface of the second housing 320, and an installation groove 361 is opened on the upper surface of the second bracket 360. An installation groove 351 is opened on the upper surface of the first bracket 350, and the filter screen 340 is fixed to the inner wall of the installation groove 351.

[0067] The filter 340 is secured via mounting slot 351, while mounting slot 361 of bracket 360 provides a positioning base for bracket 350. The stacked design of the double-layer brackets facilitates the installation and removal of the filter 340. The interface of pipe 310 is compatible with a standard vacuum hose, which accelerates airflow circulation within housing 320 through external negative pressure, enhancing dust adsorption efficiency.

[0068] Use of component 300 for data collection;

[0069] During the cleaning process, the loose dust and debris fall naturally under gravity and enter the lower chamber 320 through the opening at the bottom of chamber 140. To further improve dust collection efficiency, a fan or negative pressure suction device can be connected to pipe 310. After the fan is started, a negative pressure environment is formed inside chamber 320, and outside air enters from chamber 142, carrying dust downwards. The airflow and impurity mixture first passes through the filter screen 340 installed on bracket 150. The fine pore structure of filter screen 340 can effectively intercept dust particles, causing impurities to be trapped on the surface of filter screen 340 or deposited at the bottom of chamber 221, while the filtered clean air is discharged through pipe 310. Bracket 150 is securely fitted into mounting groove 361 of bracket 260 through mounting groove 351, ensuring that filter screen 340 will not loosen or shift under the impact of airflow. When it is necessary to clean up the collected impurities, simply pull out the entire housing 320 or remove the bracket 350 separately for cleaning; the operation is simple and quick. This achieves the effect of facilitating the collection of cleaned powder and preventing direct discharge that would cause pollution.

[0070] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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.

[0071] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A powder sweeping device for die-cut electrode sheets, characterized in that: include, The clamping assembly (100) includes a housing (140), a through-hole (143) on the upper surface of the housing (140), a groove (142) on the bottom of the inner wall of the through-hole (143), a threaded rod (130) threaded to the front and rear ends of the housing (140), and a clamping plate (160) rotatably connected to the rear end of the threaded rod (130). A cleaning component (200) is disposed within the clamping component (100); The cleaning assembly (200) includes a brush roller (220) rotatably connected to the front and rear ends of the trough (142); as well as; A collection component (300) is positioned below the clamping component (100); The collection assembly (300) includes a second box (320) installed on the lower surface of the first box (140), a second box groove (321) opened on the upper surface of the second box (320), a second bracket (360) fixed to the inner wall of the second box groove (321), a first bracket (350) placed on the upper surface of the second bracket (360), and a filter screen (340) fixed in the first bracket (350).

2. The die-cut electrode powder sweeping device according to claim 1, characterized in that: Fixing plates (120) are fixed on both sides of the front end of the box (140) and fixing plates (120) are fixed on both sides of the rear end of the box (140). A support column (110) is fixed on the lower surface of the fixing plate (120).

3. The die-cut electrode powder sweeping device according to claim 1, characterized in that: The through-hole (143) is connected to the first groove (142), and the electrode body (150) is inserted into the first groove (142) through the through-hole (143).

4. The die-cut electrode powder sweeping device according to claim 1, characterized in that: The inner walls of the first groove (142) are respectively provided with two slots (144), and the two sides of the clamp (160) are respectively fixed with insert plates (170), and the insert plates (170) are inserted into the slots (144).

5. The die-cut electrode powder sweeping device according to claim 1, characterized in that: The brush roller (220) has a rotating shaft (210) fixed at both ends. The rotating shaft (210) is rotatably connected to the inner wall of the first box groove (142). The front and rear ends of one side of the first box (140) are respectively fixed with a motor (230). The driving end of the motor (230) is fixed to one end of the rotating shaft (210).

6. The powder sweeping device for die-cut electrode sheets according to claim 1, characterized in that: The lower surface of the first box (140) is provided with slots (141) at both the front and rear ends, and the upper surface of the second box (320) is fixed with a second insert plate (330), which is inserted into the slot (141).

7. The die-cut electrode powder sweeping device according to claim 1, characterized in that: The lower surface of the second box (320) is equipped with a pipe (310), the upper surface of the second bracket (360) is provided with an installation groove (361), the upper surface of the first bracket (350) is provided with an installation groove (351), and the filter screen (340) is fixed to the inner wall of the installation groove (351).

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