Cutting dust removal device and battery pole piece production device
By designing a cutting and dust removal device with a detachable cutter and a multi-vent structure, the problems of cumbersome blade replacement and incomplete dust cleaning in existing technologies are solved. This achieves efficient cleaning of the cutter and electrode surface, reduces the risk of battery short circuits, and improves cutting stability and cleanliness.
Patent Information
- Application Number
- CN202520144657.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Existing cutting devices are cumbersome and unstable when changing blades, and dust cannot be effectively cleaned, increasing the risk of internal short circuits in the battery.
Design a cutting dust removal device, including a detachable cutting blade and multiple air vents. Utilize negative pressure to suck up dust, ensuring the gap between the cutting blade and the air vents is clear, increasing the number of dust removal points, and achieving dust removal on the cutting blade and electrode surface.
It effectively cleans dust from the cutter and electrode surface, reduces the risk of battery short circuits, improves cutting stability and cleanliness, and simplifies the blade replacement process.
Smart Images
Figure CN223833563U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cutting technology, and in particular to a cutting dust removal device and a battery electrode production device. Background Technology
[0002] In the lithium-ion battery manufacturing process, the cutting of cell electrodes is a critical step, which typically generates a large amount of metal dust. If this dust remains inside the battery, it can lead to internal short circuits and increase the battery's self-discharge rate. Therefore, developing efficient and convenient dust removal technologies to remove dust, metal particles, and other impurities generated during the cutting process is crucial for cell manufacturing.
[0003] In existing technologies, dust removal devices consist of an air inlet, a dust collection system, a filter, and an exhaust system, all bolted to a bracket. However, this design presents several problems. For example, when replacing the cutting blade, all bolts securing the dust removal device must be removed, and the device must be repositioned during reinstallation. This process is not only cumbersome but also prone to instability. Furthermore, the dust collection inlet cannot fit tightly against the cutting point of the electrode, leaving dust residue in the cutting area. Simultaneously, the cutting blade itself is not effectively cleaned, failing to remove dust from the electrode surface and edges. This lack of blade cleaning creates blind spots, allowing dust to easily remain on the blade and enter the battery, significantly increasing the risk of internal short circuits.
[0004] Therefore, this application aims to solve the problem that dust easily remains on the blade during the battery cutting process and that dust around the electrode cannot be effectively treated, thereby preventing dust from falling into the battery and reducing the risk of short circuit. Utility Model Content
[0005] The main purpose of this utility model is to provide a cutting dust removal device and a battery electrode production device, which aims to clean the dust remaining after the blade cuts, and at the same time clean the dust around the electrode, so as to prevent dust from falling into the battery and reduce the risk of short circuit.
[0006] To achieve the above objectives, this utility model proposes a cutting dust removal device, comprising:
[0007] Dust collector housing, with an air chamber inside;
[0008] A first air vent is disposed on the side wall of the dust collector housing and communicates with the air cavity of the dust collector housing. A cutter is detachably mounted on the inner wall of the cutter, the thickness of which is at least less than the width of the first air vent.
[0009] An exhaust fan is connected to one side of the dust collector housing to extract the medium from the air chamber.
[0010] In the above solution, the cutter can be fixed to the inner wall of the first air vent by means of insertion, snap-fit, or abutment. Since the thickness of the cutter is at least less than the width of the first air vent, there is a gap between the cutter and the inner wall of the first air vent. When negative pressure is generated in the air cavity, air and dust flow into the air cavity along the gap between the first air vent and the cutter, and finally flow out from the exhaust component. This satisfies the requirement of removing dust from the surface of the cutting material and the surface of the cutter, ensuring the cleanliness of the material and the cutter, avoiding dust residue on the material surface that would affect the quality of the product, and also preventing the dust on the surface of the cutter from affecting the cleaning effect of subsequent material cutting after the original product is retracted.
[0011] Furthermore, the first air vent is located in the middle of the dust collector housing. This greatly prevents dust from falling onto different sides of the dust collector housing after material cutting, thus avoiding affecting the overall dust collection effect.
[0012] Furthermore, the first air vent is elongated.
[0013] Furthermore, the dust collector housing has a recessed platform on the side wall of the first air inlet. The recessed platform has a trapezoidal structure, which allows the dust after cutting to fall onto the platform and the inclined part. The airflow direction between the air chamber and the cutter can be adjusted to ensure that the dust can be drawn into the air chamber as much as possible, thereby improving the cleaning effect.
[0014] Furthermore, a second air vent is provided at the end of the dust collector housing away from the exhaust component, and a portion of the cutter extends to the second air vent. The second air vent is located at the end of the dust collector housing and can directly abut against the cutter, causing the cutter to press against the inner wall of the first air vent. The cutter has horizontally arranged ribs or protrusions embedded in the inner wall of the dust collector housing, thereby increasing the pressing force. This process can improve installation efficiency and also improve the cutting stability of the electrode sheet.
[0015] Furthermore, the angle between the second air vent and the side wall of the cutter connected to the dust collector housing is 30° to 60°. This allows dust from the cutter tip to fall into the second air vent, and excess dust is drawn into the air chamber through the second air vent, improving the overall dust adsorption capacity.
[0016] Furthermore, a pressure member is installed at one end of the dust collector housing located at the first air vent. The pressure member is used to press the cutter firmly against the inner wall of the first air vent. The pressure member can be a metal-free single-layer or multi-layer block, plate, or frame, such as felt, or the felt can be installed on the block or frame, and the cutter can be pressed against the inner wall of the first air vent by the pressure member, thereby restricting the movement of the cutter and completing the detachable installation.
[0017] Furthermore, a pad is installed on the dust collector housing to press the pressing component. The pad is fixed to the dust collector housing with fasteners, thereby pressing the pressing component against the top of the dust collector housing to adjust the installation position of the cutter. Alternatively, a straight groove can be directly cut into the pressing component and tightened with fasteners to adjust the position of the pressing component.
[0018] Furthermore, the system includes a mounting frame on which at least one of the dust collector housings is detachably mounted. The end of the exhaust unit furthest from the dust collector housing is connected to a negative pressure pipe. The mounting frame has slots for placing the dust collector housings, allowing each housing to be pre-positioned within the slots. Fixing members are provided on the sides of the dust collector housings, and buckles extend from both sides. The fixing members are tightened onto the mounting frame, and the buckles are pressed firmly, thus achieving detachable fixing of the dust collector housings. To ensure further dust removal efficiency, several exhaust units are connected to a negative pressure pipe. An exhaust pipe is also provided below the corresponding dust collector housing, allowing dust falling from the dust collector housings to be drawn back into the negative pressure pipe, thus achieving dust removal again.
[0019] This application also discloses a battery electrode production apparatus equipped with the aforementioned cutting and dust removal device, which adsorbs dust from the electrode and the cutter. The cutter cuts the battery electrode, and dust is drawn into the air chamber along the gap between the first air inlet and the cutter. At the same time, dust on the surface of the electrode is adsorbed into the air chamber from the second air inlet, thereby achieving joint cleaning of dust on the cutter and the electrode surface.
[0020] The above technical solution has the following advantages:
[0021] This application provides a first air vent on the dust collector housing and a cutter is detachably installed at the first air vent. There is also a gap between the cutter and the first air vent. When the electrode is cut, dust can be drawn into the air chamber from the gap between the first air vent and the cutter, thereby cleaning the dust on the surface of the cutter and the electrode, preventing dust from falling into the battery and reducing the risk of short circuit.
[0022] The second air vent adds a dust removal point, and the clamping component abuts the cutter against the inner wall of the first air vent, ensuring the ease of installation of the cutter. The sliding installation and disassembly design eliminates the need for repositioning when replacing the blade. Attached Figure Description
[0023] The present invention will now be described in detail with reference to specific embodiments and accompanying drawings, wherein:
[0024] Figure 1 This is a structural disassembly diagram of the present invention;
[0025] Figure 2 This is a schematic diagram of the overall structure of this utility model.
[0026] In the diagram: 1. Dust collector housing; 2. Pad; 3. Fastener; 4. Pressing element; 5. Exhaust element; 6. Fixing element; 7. Buckle; 8. Fixing frame; 9. First air outlet; 10. Second air outlet. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain this utility model and do not constitute a limitation on this utility model.
[0028] like Figure 1 As shown, a cutting and dust removal device includes a dust removal shell 1, a first air vent 9, and an exhaust component 5. The dust removal shell 1 has an internal air cavity. The first air vent 9 is located on the side wall of the dust removal shell 1 and connects to the air cavity of the dust removal shell 1. A cutter is detachably installed on its inner wall, and the thickness of the cutter is at least less than the width of the first air vent 9. The exhaust component 5 is connected to one side of the dust removal shell 1 to extract the medium from the air cavity. The first air vent 9 is located at the top of the dust collector housing 1. Its shape can be varied, such as a long strip, a zigzag, a wave, or an arc. Correspondingly, the cutter is also designed according to the shape of the first air vent 9, such as a long strip, a zigzag, a wave, or an arc cutter, allowing it to be installed on the inner wall of the first air vent 9. The cutter can be fixed to the inner wall of the first air vent 9 by insertion, snap-fit, or abutment. Since the thickness of the cutter is at least less than the width of the first air vent 9, there is a gap between the cutter and the inner wall of the first air vent 9. When negative pressure is generated in the air cavity, air and dust flow along the gap between the first air vent 9 and the cutter into the air cavity, and finally flow out from the exhaust component 5. This satisfies the requirement of removing dust from the surface of the cutting material and the cutter, ensuring the cleanliness of the material and the cutter, preventing dust residue on the material surface from affecting product quality, and also preventing dust on the cutter surface from affecting the cleaning effect of subsequent material cutting after the original product has been retracted.
[0029] As one implementation method in this embodiment, the first air vent 9 is located at the top of the dust collector shell 1. The first air vent 9 only needs to be connected to the air cavity of the dust collector shell 1. This ensures that the dust material flows from the gap between the cutter and the first air vent 9 into the air cavity during cutting. Preferably, the first air vent 9 is located in the middle of the dust collector shell 1, which can greatly prevent the material from falling into different sides of different dust collector shells 1 after cutting, thus affecting the overall dust removal effect.
[0030] like Figure 1 As shown, in order to further ensure that the dust can be adsorbed into the air cavity as much as possible during electrode cutting, the dust collector 1 is provided with a settling platform on the side wall of the first air inlet 9. It is preferably a trapezoidal structure so that the dust after cutting can fall onto the settling platform and the inclined part. The air extraction direction between the air cavity and the cutter can be adjusted to ensure that the dust can be drawn into the air cavity as much as possible and improve the cleaning effect.
[0031] like Figure 1 As shown, in one embodiment of this application, the dust collector housing 1 is provided with a second air vent 10 at the end away from the exhaust component 5. The portion of the cutter extends to the second air vent 10. The second air vent 10 is located at the end of the dust collector housing 1 and can directly abut against the cutter, so that the cutter is pressed against the inner wall of the first air vent 9. In addition, ribs or protrusions embedded in the inner wall of the dust collector housing 1 can also be provided in the horizontal direction of the cutter to improve the pressing force. This process can improve the installation efficiency and the cutting stability of the electrode sheet.
[0032] like Figure 1 As shown, in order to further improve the dust adsorption capacity, the angle between the second air vent 10 and the side wall of the cutter connected to the dust collector housing 1 is 30° to 60°. In this application, it is preferred to be 45°, so that the dust at the end of the cutter can fall into the second air vent 10, and the excess dust can be drawn into the air cavity through the second air vent 10, thereby improving the overall dust adsorption capacity.
[0033] like Figure 1 As shown, a pressure member 4 is installed at one end of the dust collector housing 1 located at the first air vent 9. The pressure member 4 is used to press the cutter against the inner wall of the first air vent 9. The pressure member 4 can be a metal-free single or multi-layer block, plate, or frame, such as felt, or the felt can be installed on the block or frame. The pressure member 4 presses the cutter against the inner wall of the first air vent 9, thereby restricting the movement of the cutter and completing the detachable installation.
[0034] like Figure 1 As shown, a pad 2 for pressing the clamping component 4 is installed on the dust collector housing 1. The pad 2 is fixed to the dust collector housing 1 by fasteners 3, so that the clamping component 4 is pressed on the top of the dust collector housing 1 by the pad 2. The installation position of the cutter can be adjusted. Alternatively, a straight groove can be opened on the clamping component 4 and tightened by fasteners 3 to adjust the position of the clamping component 4.
[0035] like Figure 2 As shown, this application includes a fixing frame 8, on which at least one dust collector shell 1 is detachably mounted. The end of the exhaust component 5 away from the dust collector shell 1 is connected to a negative pressure pipe. The fixing frame 8 has a slot for placing the dust collector shell 1, so that each dust collector shell 1 can be pre-positioned in the slot of the fixing frame 8. The side of the dust collector shell 1 is provided with a fixing component 6, and the two sides of the dust collector shell 1 are provided with buckles 7. The fixing component 6 is tightened on the fixing frame 8 and the buckles 7 are pressed, thereby completing the detachable fixing of the dust collector shell 1. In order to ensure further dust removal effect, several exhaust components 5 are connected to a negative pressure pipe. The negative pressure pipe is also provided with an exhaust pipe below the corresponding dust collector shell 1, so that the dust falling from the dust collector shell 1 can be drawn back into the negative pressure pipe from the exhaust pipe, thereby completing the dust removal effect again.
[0036] A battery electrode production apparatus includes a cutting and dust removal device that adsorbs dust from the electrode and the cutter. The cutter is installed inside a first air vent 9. The cutter cuts the battery electrode, and dust is drawn into the air chamber along the gap between the first air vent 9 and the cutter. At the same time, dust on the surface of the electrode is adsorbed into the air chamber from a second air vent 10, so as to achieve joint cleaning of dust on the cutter and the surface of the electrode.
[0037] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A cutting dust removal device, characterized in that, include: Dust collector housing (1), with an air chamber inside; The first air vent (9) is located on the side wall of the dust collector housing (1) and is connected to the air cavity of the dust collector housing (1). A cutter is detachably installed on its inner wall. The thickness of the cutter is at least less than the width of the first air vent (9). as well as An exhaust fan (5) is connected to one side of the dust collector housing (1) to extract the medium from the air chamber.
2. The cutting dust removal device as described in claim 1, characterized in that, The first air vent (9) is located in the middle of the dust collector housing (1).
3. The cutting dust removal device as described in claim 1, characterized in that, The first air vent (9) is elongated.
4. The cutting dust removal device as described in claim 1, 2, or 3, characterized in that, The dust collector housing (1) has a recessed platform on the side wall of the first air outlet (9).
5. The cutting dust removal device as described in claim 1, characterized in that, The dust collector housing (1) is provided with a second air vent (10) at the end away from the exhaust component (5), and a portion of the cutter extends to the second air vent (10).
6. The cutting dust removal device as described in claim 5, characterized in that, The angle between the second air vent (10) and the side wall of the dust collector housing (1) connected to the cutter is 30° to 60°.
7. The cutting dust removal device as described in claim 1, characterized in that, The dust collector housing (1) is equipped with a pressure member (4) at one end of the first air vent (9). The pressure member (4) is used to press the cutter against the inner wall of the first air vent (9).
8. The cutting dust removal device as described in claim 7, characterized in that, The dust collector housing (1) is fitted with a pad (2) that presses the pressure member (4).
9. The cutting dust removal device as described in claim 1, characterized in that, Includes a fixing frame (8), on which at least one of the dust collector housings (1) can be detachably installed, and the exhaust component (5) is connected to a negative pressure pipe at one end away from the dust collector housing (1).
10. A battery electrode production apparatus, characterized in that, It is equipped with a cutting dust removal device as described in any one of claims 1-9, and adsorbs dust from the electrode sheet and the cutter.