Lithium battery winding machine powder suction device

Abstract

The utility model discloses a lithium cell winding machine powder suction device, including the transport table, the upper surface of transport table is equipped with the support cylinder, one end of transport table is equipped with the winding cylinder, one end of winding cylinder is equipped with the drive motor, and the output of drive motor is fixedly connected with winding cylinder, and the outer surface of winding cylinder is equipped with the fixed card, one end of winding cylinder is equipped with the counterweight device, the other end of winding cylinder is equipped with the air extraction device, and one end of winding cylinder away from the air extraction device is equipped with the exhaust device, and the both ends of transport table upper surface are equipped with the air outlet strip and the drainage strip respectively. Can produce the negative pressure through the power of winding, collect the powder. Simultaneously can limit the rotating speed of winding, avoid the motor damage because of the too small load speed too big. When motor drive winding cylinder, winding cylinder can drive first rotating block and second rotating block rotate. The direction of the deflector in first rotating block and second rotating block is opposite.

Description

Technical Field

[0001] This utility model relates to the field of battery winding machine technology, specifically to a powder suction device for lithium battery winding machines. Background Technology

[0002] Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloys as the positive / negative electrode materials and a non-aqueous electrolyte solution. Due to the highly reactive chemical properties of lithium metal, its processing, storage, and use require very strict environmental control. With the development of science and technology, lithium-ion batteries have become the mainstream technology.

[0003] A search of existing technology reveals that CN205194797U discloses a cell dust collection device for a lithium battery winding machine. It includes a powder collection box and a corresponding cover. One side of the powder collection box is mounted on a vertical plate via a connecting block a. The side wall of the powder collection box has a dust collection hole, which is connected to an exhaust fan via a pipe. A robotic arm is mounted on the lower surface of the cover, with a gripping part connected below the robotic arm. A cylinder is connected to the upper surface of the cover, and the end of the cylinder is mounted on the vertical plate via a connecting block b.

[0004] The comparative document demonstrates that the powder extraction box and its corresponding cover can enclose the battery cell, preventing dust from splashing during vacuuming. The suction holes on the side wall of the extraction box effectively remove powder from the battery cell, thus preventing electrode powder from puncturing the separator and causing a short circuit, significantly improving the safety of the lithium battery. However, the negative pressure used is externally input and lacks a filtration device, requiring additional piping to provide the negative pressure. Utility Model Content

[0005] The purpose of this invention is to provide a powder suction device for lithium battery winding machines to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes a transport platform, with a supporting roller on its upper surface, a winding drum at one end of the transport platform, a drive motor at one end of the winding drum, the output end of the drive motor fixedly connected to the winding drum, a fixing clip on the outer surface of the winding drum, a counterweight device at one end of the winding drum, an air extraction device at the other end of the winding drum, an exhaust device at the end of the winding drum away from the air extraction device, and an air outlet strip and a guide strip respectively at both ends of the upper surface of the transport platform.

[0007] Preferably, the air extraction device includes a first rotating block, which is fixedly connected to a winding cylinder. The winding cylinder has a hollow interior, and the first rotating block has a hollow interior. The outer wall of the first rotating block has multiple flow ports, and the interior of the first rotating block has multiple guide vanes. A guide block is sleeved on the outside of the first rotating block.

[0008] Preferably, the guide block is circular in shape, and a guide strip is fixedly connected to the upper end of the guide block. A strip groove is provided on one side of the guide strip, and guide blocks are provided on both sides of the strip groove.

[0009] Preferably, the exhaust device includes a second rotating block, the interior of which is a hollow structure, and multiple flow ports are provided on the outer side wall of the second rotating block. Multiple guide vanes are provided inside the second rotating block, and the rotation directions of the guide vanes in the first and second rotating blocks are opposite. A filter screen is fixedly connected to the outer side of the second rotating block, and an outflow port is provided on the outer side of the filter screen.

[0010] Preferably, the counterweight device includes four fixed bases, which are fixedly mounted on the outer surface of the winding drum. A counterweight block is rotatably connected to the fixed base, and a limiting piece is fixedly connected to the outer surface of the counterweight block. One end of the limiting piece is engaged with the fixed base.

[0011] Preferably, an air outlet groove is provided on one side of the air outlet strip, and an air pipe interface is fixedly connected to one side of the transport platform, the air pipe interface being connected to the air outlet strip.

[0012] Compared with existing technologies, the advantages of this invention are: it can generate negative pressure through the winding power to collect powder. Simultaneously, it can limit the winding speed, preventing motor damage due to excessive speed caused by insufficient load. When the motor drives the winding drum, the winding drum can drive the first and second rotating blocks to rotate. The guide vanes in the first and second rotating blocks are arranged in opposite directions, allowing them to respectively perform the functions of suction and exhaust. Airflow can be drawn from the suction device and discharged through the exhaust device. When the winding drum rotates, the counterweight also rotates. When the speed exceeds the limit, the counterweight will open outwards under centrifugal force to reduce the speed and prevent the machine from exploding due to excessive speed. Simultaneously, airflow is delivered through the air outlet slot of the air pipe interface box transport platform. The airflow can move towards the suction device to remove dust. Attached Figure Description

[0013] Figure 1 is a three-dimensional structural schematic diagram of this utility model;

[0014] Figure 2 is a schematic diagram of the winding cylinder structure of this utility model;

[0015] Figure 3 is a schematic cross-sectional view of the second rotating block of this utility model;

[0016] Figure 4 is a schematic diagram of the counterweight device of this utility model;

[0017] Figure 5 is a schematic diagram of the cross-sectional structure of the drainage block of this utility model.

[0018] In the diagram: 1. Transport platform; 2. Support roller; 3. Winding drum; 4. Drive motor; 5. Fixing clip; 6. Counterweight device; 7. Air extraction device.

[0019] Device; 8. Exhaust device; 9. Exhaust strip; 10. Guide strip; 11. First rotating block; 12. Flow port; 13. Guide vane; 14. Guide block;

[0020] 15. Drainage block; 16. Second rotating block; 17. Filter screen; 18. Fixed base; 19. Counterweight block; 20. Limiting plate; 21. Air outlet groove; 22. Air pipe interface. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please refer to Figures 1-5 for the embodiments provided by this utility model:

[0023] Example: A support roller 2 is provided on the upper surface of a conveyor platform 1, which supports the movement of materials. A winding drum 3 is provided at one end of the conveyor platform 1, and a drive motor 4 is provided at one end of the winding drum 3, which can drive the winding drum 3 to rotate. The output end of the drive motor 4 is fixedly connected to the winding drum 3. A fixing clip 5 is provided on the outer surface of the winding drum 3, and a counterweight device 6 is provided at one end of the winding drum 3. The device can adjust the rotational speed of the winding drum 3. An air extraction device 7 is provided at the other end of the winding drum 3, and an exhaust device 8 is provided at the end of the winding drum 3 away from the air extraction device 7. An air outlet strip 9 and a guide strip 10 are respectively provided at both ends of the upper surface of the conveyor platform 1.

[0024] The air extraction device 7 includes a first rotating block 11, which is fixedly connected to the winding cylinder 3. The winding cylinder 3 has a hollow interior, as does the first rotating block 11. Multiple flow ports 12 are provided on the outer wall of the first rotating block 11, and multiple guide vanes 13 are provided inside the first rotating block 11. A guide block 14 is sleeved on the outside of the first rotating block 11. The guide vanes 13 inside the first rotating block 11 can drive the airflow to rotate, thereby extracting the gas from the winding cylinder 3.

[0025] The guide block 14 is annular in shape, and a guide strip 10 is fixedly connected to its upper end. A strip groove is formed on one side of the guide strip 10, and guide blocks 15 are provided on both sides of the strip groove. The guide block 14 and the guide strip 10 can move the air in the strip groove formed on one side of the guide strip 10.

[0026] The exhaust device 8 includes a second rotating block 16, which has a hollow interior. Multiple flow ports 12 are provided on the outer wall of the second rotating block 16, and multiple guide vanes 13 are provided inside the second rotating block 16. The guide vanes 13 in the first rotating block 11 and the second rotating block 16 rotate in opposite directions. A filter screen 17 is fixedly connected to the outer side of the second rotating block 16, and the filter screen 17 has an outflow port on its outer side. The reverse flow vanes in the first rotating block 11 and the second rotating block 16, rotating in opposite directions, can effectively draw air inward and expel air outward when the first rotating block 11 and the second rotating block 16 rotate in the same direction, thus transferring gas from one side to the other.

[0027] The counterweight device 6 includes four fixed bases 18, which are fixedly mounted on the outer surface of the winding drum 3. A counterweight block 19 is rotatably connected to each fixed base 18, and a limiting plate 20 is fixedly connected to the outer surface of each counterweight block 19. One end of the limiting plate 20 is engaged with the fixed base 18. When the rotational speed increases, the counterweight block 19 deflects outward, increasing the torque and thus reducing the rotational speed. When the rotational speed decreases, the counterweight block 19 returns inward under the action of the limiting plate 20, reducing the torque and increasing the rotational speed.

[0028] One side of the air outlet strip 9 is provided with an air outlet groove 21, and one side of the conveyor table 1 is fixedly connected to an air pipe interface 22, which is connected to the air outlet strip 9. The air pipe interface 22 can be connected to an external air pipe to input the dust into the air outlet strip 9, and then blow it out from the air outlet strip 9, blowing the dust to the other side.

[0029] The material moves above the conveyor platform 1, where the support roller 2 reduces friction. Simultaneously, the motor rotates the winding drum 3 to wind the material. When the motor drives the winding drum 3, it drives the first rotating block 11 and the second rotating block 16 to rotate. The guide vanes 13 in the first and second rotating blocks 11 and 16 are positioned in opposite directions, allowing them to respectively perform the functions of suction and exhaust. Airflow is drawn from the suction device 7 and discharged through the exhaust device 8. As the winding drum 3 rotates, the counterweight device 6 also rotates. When the rotation speed exceeds the limit, the counterweight 19 expands outwards under centrifugal force to reduce the speed and prevent overspeeding and potential explosion. Simultaneously, airflow is delivered to the air outlet 21 of the conveyor platform 1 through the air pipe interface 22. The airflow moves towards the suction device 7 to remove dust.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A powder suction device for a lithium battery winding machine, comprising a conveying table (1), characterized in that: The upper surface of the transport platform (1) is provided with a support roller (2), one end of the transport platform (1) is provided with a winding drum (3), and one end of the winding drum (3) is provided with a drive motor (4). The output end of the motor (4) is fixedly connected to the winding drum (3). The outer surface of the winding drum (3) is provided with a fixing clip (5). One end of the winding drum (3) is provided with a counterweight device (6), and the other end of the winding drum (3) is provided with an air extraction device (7). The winding drum (3) is far away from the wind. An exhaust device (8) is provided at one end of the air extraction device (7), and an air outlet strip (9) and a flow guide strip (10) are respectively provided at both ends of the upper surface of the transport platform (1).

2. The lithium battery winding machine powder suction device according to claim 1, characterized in that: The air extraction device (7) includes a first rotating block (11), which is fixedly connected to the winding cylinder (3). The winding cylinder (3) has a hollow interior, and the first rotating block (11) has a hollow interior. The outer wall of the first rotating block (11) is provided with multiple flow ports (12). The interior of the first rotating block (11) is provided with multiple guide vanes (13), and the exterior of the first rotating block (11) is fitted with a guide block (14).

3. The lithium battery winding machine powder suction device according to claim 2, characterized in that: The guide block (14) is circular in shape. A guide strip (10) is fixedly connected to the upper end of the guide block. A strip groove is provided on one side of the guide strip (10), and a guide block (15) is provided on both sides of the strip groove.

4. The lithium battery winding machine powder suction device according to claim 2, characterized in that: The exhaust device (8) includes a second rotating block (16), the interior of which is hollow, and multiple flow ports (12) are provided on the outer side wall of the second rotating block (16). Multiple guide vanes (13) are provided inside the second rotating block (16). The rotation directions of the guide vanes (13) in the first rotating block (11) and the second rotating block (16) are opposite. A filter screen (17) is fixedly connected to the outer side of the second rotating block (16), and an outflow port is provided on the outer side of the filter screen (17).

5. The lithium battery winding machine powder suction device according to claim 1, characterized in that: The counterweight device (6) includes four fixed bases (18). The fixed bases (18) are fixedly mounted on the outer surface of the winding drum (3). A counterweight block (19) is rotatably connected to the fixed base (18). A limiting piece (20) is fixedly connected to the outer surface of the counterweight block (19). One end of the limiting piece (20) is engaged with the fixed base (18).

6. The lithium battery winding machine powder suction device according to claim 5, characterized in that: An air outlet groove (21) is provided on one side of the air outlet strip (9), and an air pipe interface (22) is fixedly connected to one side of the transport platform (1). The air pipe interface (22) is connected to the air outlet strip (9).

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