Novel slitting knife rest mechanism with air blowing and dust collecting device

Abstract

The utility model relates to the technical field of lithium battery manufacturing equipment, in particular to a novel slitting knife rest mechanism with an air blowing and dust collecting device, which comprises a knife holder and an external knife mounted on the knife holder. The slitting tool rest mechanism further comprises a dust collection assembly and an air blowing assembly, the dust collection assembly comprises a dust collection cover internally provided with a containing cavity, the tool apron is arranged in the containing cavity, the dust collection cover is provided with an air inlet and an air outlet which are communicated with the containing cavity, the air outlet is connected with an external exhaust fan, and the tool extends out of the containing cavity through the air inlet. The air blowing assembly is arranged on the tool apron, an air inlet and an air outlet are formed in the air blowing assembly, the air inlet is communicated with an external fan, and the air outlet is formed in the side, close to the tool, of the air blowing assembly. Dust accumulated at the knife edge is blown away through the air blowing assembly and is absorbed through the dust absorption assembly, targeted dust removal is achieved, the situation that the dust overflows and floats to a rolled pole piece to pollute the pole piece is avoided, and the purpose of dust removal aiming at a source can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery manufacturing equipment, and particularly discloses a novel slitting tool rest mechanism with a blowing and dust suction device. Background Art

[0002] In the production process of lithium battery diaphragms, the slitting process is a key step. The slitting equipment cuts the large roll of diaphragm material into the required width through high-precision tools for subsequent winding and assembly. However, there is a common problem in the existing lithium battery diaphragm slitting equipment during use, that is, the phenomenon of dust accumulation at the knife edge. These dusts mainly come from the tiny debris generated during the cutting of the diaphragm material. As the slitting time increases, these debris gradually accumulate around the knife edge, forming dust.

[0003] The dust accumulated at the knife edge will not only affect the normal operation of the slitting equipment, increasing the frequency of maintenance and cleaning, but more importantly, these dusts may fall into the already slit diaphragms. Lithium battery diaphragms require extremely high cleanliness. Once dust adheres to the diaphragm, it may cause internal short circuit in the battery, reduce the battery performance, and even lead to safety accidents. Therefore, how to effectively solve the problem of dust accumulation during the slitting of lithium battery diaphragms has become the key to improving the diaphragm quality and ensuring the safety and performance of the battery.

[0004] In the prior art, generally, the dust, debris and other particles are removed from the slit electrode sheets through a brush mechanism with negative pressure. However, in actual applications, after the electrode sheets are cleaned by the brush, due to the relatively small overall negative pressure or air flow in the existing design, the dust, debris and other particles cannot be sucked away or remain on the brush, which is likely to cause secondary pollution. In addition, problems such as dust and debris particles will reduce the production yield of the subsequent process and cause the core to be scrapped, and the core is prone to internal short circuit, smoking, explosion and other problems during the formation process. Content of the Utility Model

[0005] In order to overcome the disadvantages and deficiencies existing in the prior art, the purpose of the utility model is to provide a slitting tool rest mechanism that can avoid dust accumulation on the tool, has high dust removal efficiency and good dust removal effect.

[0006] To achieve the above object, a novel slitting cutter head mechanism with a blowing and dust suction device of the present utility model includes a cutter base and an external cutter mounted on the cutter base; the slitting cutter head mechanism further includes a dust suction component and a blowing component. The dust suction component includes a dust suction hood with an accommodation cavity inside. The cutter base is placed in the accommodation cavity. The dust suction hood is provided with an air inlet and an air outlet communicating with the accommodation cavity. The air outlet is connected to an external suction fan, and the cutter extends out of the accommodation cavity through the air inlet; the blowing component is arranged on the cutter base. The blowing component is provided with an air inlet and an air outlet. The air inlet is communicated with an external fan, and the air outlet is arranged on the side of the blowing component close to the cutter. The present utility model blows away the dust accumulated at the cutting edge through the blowing component and absorbs it through the dust suction component, effectively preventing the dust generated during the cutting process from accumulating around the cutter, keeping the cutter clean, improving the slitting effect and the quality of the diaphragm, performing targeted dust removal, and avoiding the dust spilling and falling onto the wound pole piece, resulting in pole piece contamination, and can achieve the purpose of dust removal at the source.

[0007] Further, the blowing component is a trachea. One end of the air inlet of the blowing component passes through the dust suction hood and extends out of the accommodation cavity, and one end of the air outlet of the blowing component is connected to the cutter base. The trachea design enables the blowing component to better introduce external air and accurately transport the air flow to the vicinity of the cutter, enhancing the blowing effect and ensuring that the dust around the cutter can be promptly blown away by the air flow to prevent dust accumulation.

[0008] Further, the dust suction hood includes a first hood body, a second hood body and a third hood body. The first hood body includes a first bottom plate and first side plates arranged on both sides of the first bottom plate. The first side plates are connected to the second hood body and the third hood body. The first hood body, the second hood body and the third hood body enclose the accommodation cavity. The air outlet is arranged on the first bottom plate, the air inlet is arranged on the first side plate, and a gap serving as the air inlet is provided between the second hood body and the third hood body. The dust suction hood is composed of multiple parts, enabling the dust suction component to be flexibly assembled and disassembled. The gap between the second hood body and the third hood body serves as the air inlet, increasing the dust removal range.

[0009] Further, the second hood body, the third hood body and the first hood body are detachably connected via bolts. The bolt connection design enables each part of the hood body to be conveniently disassembled and installed, facilitating equipment maintenance and cleaning, enhancing the operability and maintainability of the equipment, and improving production efficiency.

[0010] Further, the second hood body includes a second bottom plate and second side plates arranged on both sides of the second bottom plate. The second side plates are connected to the first side plates. The second bottom plate includes a connecting portion connected to the first bottom plate and an arc portion adapted to the cutter base. The design of the arc portion can better guide the air flow. During the dust removal process, the air flow needs to quickly and smoothly pass around the cutter, carrying away the dust generated during the cutting process. The arc portion can reduce the resistance of the air flow and avoid the formation of eddy currents, making the dust suction efficiency higher.

[0011] Furthermore, the structure of the third cover body is the same as that of the second cover body.

[0012] Furthermore, at both ends of the first bottom plate away from each other, there are respectively provided a first bending portion and a second bending portion that bend towards the second bottom plates of the second cover body and the third cover body. The inner sides of the first bending portion and the second bending portion respectively abut against the second bottom plates of the second cover body and the third cover body. The connecting portion increases the connection firmness of each part of the cover body. The first bending portion and the second bending portion cooperate with the second bottom plate and the third bottom plate to improve the sealing performance of the dust suction cover, ensure that the air flow can effectively circulate in the cover body, and enhance the dust suction effect.

[0013] Furthermore, there are multiple groups of tool holders, and the multiple groups of tool holders are arranged at equal intervals along the length direction of the dust suction cover. The design of multiple groups of tool holders enables the device to simultaneously slit multiple diaphragms, improving the production efficiency, enhancing the efficiency of the production line, and meeting the requirements of large-scale production.

[0014] Furthermore, the blowing assembly is provided with air outlets having the same number as the tool holders, and the multiple groups of air outlets are arranged in one-to-one correspondence with the multiple groups of tool holders. Each tool holder is equipped with an independent air outlet, ensuring that each tool can be effectively purged by the air flow, improving the cleanliness of each tool, and preventing dust from accumulating on any tool.

[0015] Furthermore, there are multiple groups of air outlet openings, and the multiple groups of air outlet openings are arranged at equal intervals along the length direction of the dust suction cover. The design of multiple air outlet openings enhances the negative pressure inside the dust suction cover, improving the dust removal efficiency and effect.

[0016] Advantages of the present utility model:

[0017] In the present utility model, by providing a blowing assembly to blow away the dust accumulated at the cutting edge and absorbing it through a dust suction assembly, it effectively prevents the dust generated during the cutting process from accumulating around the tool, keeps the tool clean, improves the slitting effect and the quality of the diaphragm, performs targeted dust removal, avoids the dust overflowing and falling onto the wound-up pole piece, resulting in pole piece contamination, and can achieve the purpose of dust removal at the source;

[0018] The trachea design enables the blowing assembly to better introduce external air and accurately convey the air flow to the vicinity of the tool, enhancing the blowing effect and ensuring that the dust around the tool can be promptly blown away by the air flow, preventing dust accumulation;

[0019] The dust suction hood is composed of multiple parts, enabling the dust suction component to be flexibly assembled and disassembled, facilitating equipment maintenance and cleaning, enhancing the operability and maintainability of the equipment, improving production efficiency. The gap between the second hood body and the third hood body serves as the air inlet, increasing the dust removal range. The design of the arc-shaped part can better guide the air flow. During the dust removal process, the air flow needs to pass quickly and smoothly around the cutting tool, carrying away the dust generated during the cutting process. The arc-shaped part can reduce the resistance of the air flow and avoid the formation of eddy currents, making the dust suction efficiency higher. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of a novel slitting tool holder mechanism with a blowing and dust suction device of the present utility model;

[0021] Figure 2 It is a schematic structural diagram of another perspective of a novel slitting tool holder mechanism with a blowing and dust suction device of the present utility model;

[0022] Figure 3 It is an exploded view of the dust suction component and the blowing component of the present utility model;

[0023] Figure 4 It is a sectional view of the dust suction component and the blowing component of the present utility model;

[0024] Figure 5 It is a schematic structural diagram of the first hood body of the present utility model;

[0025] Figure 6 It is a schematic structural diagram of the second hood body of the present utility model.

[0026] Reference numerals include:

[0027] 1, tool holder; 2, dust suction component; 3, blowing component; 4, accommodation cavity; 5, dust suction hood; 6, air inlet; 7, air outlet; 8, air intake; 9, air outlet; 10, first hood body; 11, second hood body; 12, third hood body; 13, first bottom plate; 14, first side plate; 15, second bottom plate; 16, second side plate; 17, connecting part; 18, arc-shaped part; 19, first bending part; 20, second bending part. Detailed Description of the Preferred Embodiment

[0028] To further elaborate on the technical means and effects adopted by the present utility model to achieve the intended utility model purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation manners, structures, features, and their effects of the present utility model as follows.

[0029] Please refer to Figures 1 to 6As shown in the figure, a novel slitting cutter head mechanism with a blowing and dust suction device of the present utility model includes a cutter base 1 and an external cutting tool installed on the cutter base 1; the slitting cutter head mechanism further includes a dust suction component 2 and a blowing component 3. The dust suction component 2 includes a dust suction hood 5 with an accommodation cavity 4 inside. The cutter base 1 is placed in the accommodation cavity 4. The dust suction hood 5 is provided with an air inlet 6 and an air outlet 7 communicating with the accommodation cavity 4. The air outlet 7 is connected to an external exhaust fan. The cutting tool extends out of the accommodation cavity 4 through the air inlet 6; the blowing component 3 is arranged on the cutter base 1. The blowing component 3 is provided with an air inlet 8 and an air outlet 9. The air inlet 8 is communicated with an external fan. The air outlet 9 is arranged on one side of the blowing component 3 close to the cutting tool. By setting the blowing component 3, the dust accumulated at the cutting edge is dispersed and absorbed by the dust suction component 2, effectively preventing the dust generated during the cutting process from accumulating around the cutting tool, keeping the cutting tool clean, improving the slitting effect and the quality of the diaphragm, performing targeted dust removal, and avoiding the dust overflowing and falling onto the wound pole piece, resulting in pole piece pollution, and achieving the purpose of dust removal at the source.

[0030] The blowing component 3 is an air pipe. One end of the air inlet 8 of the blowing component 3 passes through the dust suction hood 5 and extends out of the accommodation cavity 4. One end of the air outlet 9 of the blowing component 3 is connected to the cutter base 1. The air pipe design enables the blowing component 3 to better introduce external air and accurately convey the air flow to the vicinity of the cutting tool, enhancing the blowing effect and ensuring that the dust around the cutting tool can be promptly dispersed by the air flow, preventing dust accumulation.

[0031] The dust suction hood 5 includes a first hood body 10, a second hood body 11 and a third hood body 12. The first hood body 10 includes a first bottom plate 13 and first side plates 14 arranged on both sides of the first bottom plate 13. The first side plates 14 are connected to the second hood body 11 and the third hood body 12. The first hood body 10, the second hood body 11 and the third hood body 12 enclose the accommodation cavity 4. The air outlet 7 is arranged on the first bottom plate 13. The air inlet 8 is arranged on the first side plate 14. There is a gap serving as the air inlet 6 between the second hood body 11 and the third hood body 12. The dust suction hood 5 is composed of multiple parts, enabling the flexible assembly and disassembly of the dust suction component 2. The gap between the second hood body 11 and the third hood body 12 serves as the air inlet 6, increasing the dust removal range.

[0032] The second hood body 11, the third hood body 12 and the first hood body 10 are detachably connected by bolts. The bolt connection design enables the convenient disassembly and installation of each part of the hood body, facilitating equipment maintenance and cleaning, enhancing the operability and maintainability of the equipment, and improving production efficiency.

[0033] The second cover body 11 includes a second bottom plate 15 and second side plates 16 disposed on both sides of the second bottom plate 15. The second side plates 16 are connected to the first side plates 14. The second bottom plate 15 includes a connecting portion 17 connected to the first bottom plate 13 and an arc portion 18 adapted to the tool holder 1. The design of the arc portion 18 can better guide the airflow. During the dust removal process, the airflow needs to pass quickly and smoothly around the tool, carrying away the dust generated during the cutting process. The arc portion 18 can reduce the resistance of the airflow, avoid the formation of eddy currents, and make the dust collection efficiency higher.

[0034] The structure of the third cover body 12 is the same as that of the second cover body 11.

[0035] At both ends of the first bottom plate 13 away from each other, there are respectively provided a first bending portion 19 and a second bending portion 20 that bend towards the second bottom plate 15 of the second cover body 11 and the third cover body 12. The inner sides of the first bending portion 19 and the second bending portion 20 respectively abut against the second bottom plates 15 of the second cover body 11 and the third cover body 12. The connecting portion 17 increases the connection firmness of each part of the cover body. The cooperation of the first bending portion 19 and the second bending portion 20 with the second bottom plate 15 and the third bottom plate improves the sealing performance of the dust suction cover 5, ensures that the airflow can effectively circulate in the cover body, and enhances the dust suction effect.

[0036] There are multiple groups of tool holders 1, and the multiple groups of tool holders 1 are arranged at equal intervals along the length direction of the dust suction cover 5. The design of the multiple groups of tool holders 1 enables the device to simultaneously perform the slitting of multiple diaphragms, improving the production efficiency, enhancing the efficiency of the production line, and meeting the requirements of large-scale production.

[0037] The blowing assembly 3 is provided with air outlets 9 having the same number as the tool holders 1, and the multiple groups of air outlets 9 are arranged in one-to-one correspondence with the multiple groups of tool holders 1. Each tool holder 1 is equipped with an independent air outlet 9, ensuring that each tool can be effectively purged by the airflow, improving the cleanliness of each tool, and preventing dust from accumulating on any tool.

[0038] There are multiple groups of air outlets 7, and the multiple groups of air outlets 7 are arranged at equal intervals along the length direction of the dust suction cover 5. The design of the multiple air outlets 7 enhances the negative pressure inside the dust suction cover 5, improving the dust removal efficiency and effect.

[0039] In a further technical solution, an ion generator is installed on the second cover body 11, and the ion generator can well blow the dust attached to the tool and be sucked away.

[0040] Specifically, the tool and the tool holder 1 adopt a modular design, which is convenient for quick replacement and maintenance, reduces the downtime, and improves the production efficiency.

[0041] Specifically, a filter screen is provided inside the dust suction cover 5 to capture large particle dust and reduce the amount of dust entering the main dust collection system.

[0042] Specifically, an air flow guiding plate is added inside the dust suction hood 5 to optimize the air flow path and make dust suction more efficient.

[0043] Specifically, a plurality of air blowing ports with adjustable angles are added to the air blowing assembly 3 to ensure that the air flow can fully cover the tool area and prevent dust accumulation at any angle.

[0044] In this embodiment, the tool is installed on the tool holder 1. During slitting, the diaphragm material moves, and the tool cuts the diaphragm material. During the slitting process, tiny dust is generated when the diaphragm material is cut. The external fan presses air into the air pipe through the air inlet 8, and the air flow forms a strong air flow near the tool through the air outlet 9. The air flow forms a certain wind pressure around the tool to prevent dust from accumulating on the tool surface and blows the dust into the accommodating cavity 4 of the dust suction hood 5, reducing the impact of dust on the tool and the slitting quality; the external exhaust fan generates negative pressure through the air outlet 7. The dust generated during the tool cutting process is blown into the dust suction hood 5 by the air flow of the air blowing assembly 3. Under the action of the negative pressure, the dust flows with the air and is sucked by the exhaust fan through the air outlet 7 and discharged to the dust collection device.

[0045] The above is only a preferred embodiment of the present invention, and it does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments with equivalent changes by using the disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A novel slitting knife holder mechanism with an air blowing and dust suction device, comprising a knife holder (1) and an external knife mounted on the knife holder (1); characterized in that: The slitting knife holder mechanism also includes a dust suction component (2) and an air blowing component (3). The dust suction component (2) includes a dust suction hood (5) provided with a receiving chamber (4). The knife holder (1) is placed in the receiving chamber (4). The dust suction hood (5) is provided with an air inlet (6) and an air outlet (7) which are connected to the receiving chamber (4). The air outlet (7) is connected to an external exhaust fan. The knife extends out of the receiving chamber (4) via the air inlet (6). The air blowing component (3) is arranged on the knife holder (1). The air inlet (8) and an air outlet (9) are provided on the air blowing component (3). The air inlet (8) is connected to an external fan. The air outlet (9) is arranged on a side of the air blowing component (3) close to the knife.

2. According to claim 1, a novel slitting knife holder mechanism with air blowing and dust suction device is characterized in that: The air blowing component (3) is an air pipe, one end of the air inlet (8) of the air blowing component (3) passes through the dust cover (5) and extends out of the accommodating cavity (4), and one end of the air outlet (9) of the air blowing component (3) is connected to the knife seat (1).

3. According to claim 1, a novel slitting knife holder mechanism with air blowing and dust suction device is characterized in that: The dust collection hood (5) comprises a first hood body (10), a second hood body (11) and a third hood body (12); the first hood body (10) comprises a first bottom plate (13) and first side plates (14) arranged on both sides of the first bottom plate (13); the first side plates (14) are connected to the second hood body (11) and the third hood body (12); the first hood body (10), the second hood body (11) and the third hood body (12) are arranged to form the accommodating cavity (4); the air outlet (7) is arranged on the first bottom plate (13); the air inlet (8) is arranged on the first side plate (14); and a gap serving as an air inlet (6) is arranged between the second hood body (11) and the third hood body (12).

4. A novel slitting knife holder mechanism with air blowing and dust suction device according to claim 3, characterized in that: The second cover body (11), the third cover body (12) and the first cover body (10) are detachably connected via bolts.

5. The novel slitting knife holder mechanism with air blowing and dust suction device according to claim 3 is characterized in that: The second cover body (11) comprises a second bottom plate (15) and second side plates (16) arranged on both sides of the second bottom plate (15), the second side plates (16) being connected to the first side plates (14), and the second bottom plate (15) comprising a connecting portion (17) connected to the first bottom plate (13) and an arc portion (18) adapted to the knife seat (1).

6. A novel slitting knife holder mechanism with air blowing and dust suction device according to claim 5, characterized in that: The structure of the third cover body (12) is the same as that of the second cover body (11).

7. A novel slitting knife holder mechanism with air blowing and dust suction device according to claim 6, characterized in that: Two ends of the first bottom plate (13) that are away from each other are respectively provided with a first bending portion (19) and a second bending portion (20) that are bent toward the second bottom plate (15) of the second cover body (11) and the third cover body (12); the inner sides of the first bending portion (19) and the second bending portion (20) respectively abut against the second bottom plate (15) of the second cover body (11) and the third cover body (12).

8. The novel slitting knife holder mechanism with air blowing and dust suction device according to claim 1 is characterized in that: The knife seats (1) are provided in a plurality of groups, and the plurality of groups of knife seats (1) are arranged at equal intervals along the length direction of the dust cover (5).

9. A novel slitting knife holder mechanism with air blowing and dust suction device according to claim 8, characterized in that: The air blowing assembly (3) is provided with the same number of air outlets (9) as the number of the knife seats (1), and the multiple groups of air outlets (9) are arranged in a one-to-one correspondence with the multiple groups of knife seats (1).

10. The novel slitting knife holder mechanism with air blowing and dust suction device according to claim 1 is characterized in that: The air outlets (7) are provided in a plurality of groups, and the plurality of groups of air outlets (7) are arranged at equal intervals along the length direction of the dust hood (5).

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