Cutting device for production of graphite negative electrode of lithium battery

Abstract

The utility model discloses a cutting device for producing a graphite negative electrode of a lithium battery, and belongs to the technical field of graphite negative electrode plate cutting. A cutting device for production of a graphite negative electrode of a lithium battery comprises a mounting box, and further comprises a guide rail mounting frame fixedly mounted in the mounting box; the cutting box is fixedly mounted on the guide rail mounting frame; the pressing plate is arranged in the cutting box in a lifting manner; the bottom of the cutting box and the pressing plate are each provided with a plurality of sets of threading grooves, and the multiple sets of threading grooves are distributed at equal intervals. By adopting a cutting mode that a plurality of sand lines rotate synchronously, the cutting speed of the graphite block is increased, the production efficiency is improved, the hydraulic cylinder drives the pressing plate to descend, the graphite block is firmly fixed in a cutting area, the cutting precision and safety are guaranteed, and meanwhile the cutting efficiency is improved. And accurate channels are provided for the sand lines through the multiple sets of threading grooves distributed at equal intervals, and the cutting precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of graphite negative plate cutting, in particular to a cutting device for the production of graphite negative electrodes of lithium batteries. Background Art

[0002] During the production of graphite negative electrodes in lithium batteries, it is necessary to cut the pressed graphite blocks into plate shapes. During the cutting process, a cutting machine is required to perform equal-thickness cutting on the graphite blocks.

[0003] Currently, after the cutting machine generally uses a sand disc or a sand line for cutting, workers manually catch the just-cut graphite sheets, and then adjust the position of the graphite block to perform cutting again. In this process, in order to prevent the machine from hurting the staff, it is generally necessary to stop the machine and then the staff change the position of the graphite block. Therefore, the cutting efficiency needs to be improved. For this reason, a cutting device for the production of graphite negative electrodes of lithium batteries is proposed here. Summary of the Utility Model

[0004] The utility model is proposed to solve the problem of low cutting efficiency in the prior art, and provides a cutting device for the production of graphite negative electrodes of lithium batteries.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A cutting device for the production of graphite negative electrodes of lithium batteries includes an installation box, and further includes: a guide rail mounting frame fixedly installed in the installation box; a cutting box fixedly installed on the guide rail mounting frame; a pressing plate arranged to be lifted and lowered in the cutting box; through wire grooves are formed at the bottom of the cutting box and on the pressing plate, and multiple groups of through wire grooves are provided, and the multiple groups of through wire grooves are equidistantly distributed; a cutting assembly slidably arranged on the guide rail mounting frame, a sand line is arranged on the cutting assembly, and multiple sand lines are provided, and the multiple sand lines pass through the upper and lower two groups of through wire grooves; a driving part is arranged in the installation box and is used to drive the cutting assembly to move and cut the graphite block.

[0007] As a preferred embodiment of the utility model: the cutting assembly includes a mounting plate slidably connected to the guide rail mounting frame, a mounting roller is rotatably installed on the mounting plate, a limiting groove is formed in the mounting roller, the sand line is arranged in the limiting groove, and a first motor is fixedly installed on the side wall of the mounting plate, and the output shaft of the first motor is fixedly connected to the mounting roller.

[0008] As a preferred embodiment of the utility model: two groups of mounting rollers are provided, and the two groups of mounting rollers are synchronously rotated through a synchronous pulley group, and the upper and lower two groups of mounting rollers are respectively arranged above the pressing plate and below the cutting box.

[0009] As a preferred embodiment of the present utility model: The driving part includes a second motor fixedly installed in the installation box, and a lead screw is fixedly installed at the output end of the second motor. The lead screw is in threaded connection with the installation plate.

[0010] As a preferred embodiment of the present utility model: A receiving box is fixedly installed at the bottom of the installation plate. An installation cylinder is fixedly installed on the side wall of the receiving box. An installation shaft is rotatably connected to the installation cylinder. A fan blade is fixedly connected to the installation shaft. The installation shaft is connected to the installation roller through a differential pulley group.

[0011] As a preferred embodiment of the present utility model: The top of the installation plate is fixedly connected with an air knife box. The air inlet end of the air knife box is connected to the exhaust end of the installation cylinder through a trachea.

[0012] As a preferred embodiment of the present utility model: A filter plate is arranged between the installation cylinder and the receiving box.

[0013] As a preferred embodiment of the present utility model: A hydraulic cylinder is fixedly installed on the outer wall of the cutting box. A connecting plate is fixedly installed at the output end of the hydraulic cylinder. The connecting plate is fixedly connected with the pressing plate.

[0014] Compared with the prior art, the present utility model provides a cutting device for the production of graphite anodes of lithium batteries, and has the following beneficial effects:

[0015] 1. For the cutting device for the production of graphite anodes of lithium batteries, by adopting the cutting method of synchronous rotation of multiple abrasive wires, the cutting speed of graphite blocks is accelerated, the production efficiency is improved, and the hydraulic cylinder drives the pressing plate to descend, firmly fixing the graphite blocks in the cutting area, effectively preventing the movement or vibration of the graphite blocks during the cutting process, ensuring the cutting accuracy and safety. At the same time, multiple groups of equidistantly distributed wire grooves are opened on both the bottom of the cutting box and the pressing plate. These wire grooves provide precise channels for the abrasive wires. When the abrasive wires move under the action of the driving part, they can perform equal-thickness cutting on the graphite blocks along the preset path, improving the cutting accuracy;

[0016] 2. For the cutting device for the production of graphite anodes of lithium batteries, the rotation of the fan blade makes the air above the receiving box flow into the receiving box. During this process, the dust generated by the cutting assembly cutting the graphite blocks is collected in the receiving box, preventing the dust from overflowing and polluting the environment, and at the same time improving the convenience of dust recovery;

[0017] 3. For the cutting device for the production of graphite anodes of lithium batteries, the airflow with dust is filtered, and the filtered airflow is blown onto the abrasive wires to cool the abrasive wires and extend the service life of the abrasive wires. Description of the Drawings

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a cutting device for the production of graphite anodes of lithium batteries proposed by the present utility model;

[0019] Figure 2 This is a structural schematic diagram of a guide rail mounting frame of a cutting device for the production of graphite anodes of lithium batteries proposed by the present utility model;

[0020] Figure 3 This is a structural schematic diagram of a cutting assembly of a cutting device for the production of graphite anodes of lithium batteries proposed by the present utility model;

[0021] Figure 4 This is a structural schematic diagram of a driving part of a cutting device for the production of graphite anodes of lithium batteries proposed by the present utility model;

[0022] Figure 5 This is a structural schematic diagram of an air knife box of a cutting device for the production of graphite anodes of lithium batteries proposed by the present utility model.

[0023] In the figure: 1, mounting box; 2, guide rail mounting frame; 3, cutting box; 4, pressing plate; 5, connecting plate; 6, hydraulic cylinder; 7, wire trough; 8, mounting plate; 9, mounting roller; 10, first motor; 11, filter plate; 12, limiting groove; 13, abrasive wire; 14, synchronous pulley set; 15, mounting cylinder; 16, mounting shaft; 17, differential pulley set; 18, air knife box; 19, air pipe; 20, lead screw; 21, second motor; 22, receiving box; 23, fan blade. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0026] Embodiment: Refer to Figures 1-5, A cutting device for the production of graphite anodes of lithium batteries, including an installation box 1, and further including: a guide rail mounting frame 2, fixedly installed inside the installation box 1; a cutting box 3, fixedly installed on the guide rail mounting frame 2; a pressing plate 4, arranged to be lifted and lowered inside the cutting box 3. A hydraulic cylinder 6 is fixedly installed on the outer wall of the cutting box 3, and the output end of the hydraulic cylinder 6 is fixedly installed with a connecting plate 5, and the connecting plate 5 is fixedly connected to the pressing plate 4; through slots 7 are opened on both the bottom of the cutting box 3 and the pressing plate 4, and multiple groups of through slots 7 are provided, and multiple groups of through slots 7 are equally spaced; a cutting assembly, slidably arranged on the guide rail mounting frame 2, and a sand line 13 is arranged on the cutting assembly, and multiple sand lines 13 are provided, and multiple sand lines 13 pass through the upper and lower two groups of through slots 7; a driving part, arranged inside the installation box 1, and used to drive the cutting assembly to move and cut the graphite block.

[0027] When cutting the graphite block, the pressing plate 4 is driven by the hydraulic cylinder 6 to descend and cooperate with the cutting box 3 to fix the graphite block. Then, the cutting assembly is started, and the cutting assembly drives multiple sand lines 13 to rotate synchronously. Then, the driving part drives the cutting assembly to move, so that the sand lines 13 cut the graphite block.

[0028] To sum up, in this embodiment, by adopting the cutting method of multiple sand lines 13 rotating synchronously, the cutting speed of the graphite block is accelerated, the production efficiency is improved, and the hydraulic cylinder 6 drives the pressing plate 4 to descend, firmly fixing the graphite block in the cutting area, effectively preventing the movement or vibration of the graphite block during the cutting process, ensuring the cutting accuracy and safety. At the same time, multiple groups of equally spaced through slots 7 are opened on both the bottom of the cutting box 3 and the pressing plate 4. These through slots 7 provide precise channels for the sand lines 13. When the sand lines 13 move under the action of the driving part, they can cut the graphite block with equal thickness along the preset path, improving the cutting accuracy.

[0029] Refer to Figures 3-5 , The cutting assembly includes a mounting plate 8 slidably connected to the guide rail mounting frame 2. A mounting roller 9 is rotatably installed on the mounting plate 8. A limiting groove 12 is opened on the mounting roller 9, and the sand line 13 is arranged in the limiting groove 12. A first motor 10 is fixedly installed on the side wall of the mounting plate 8, and the output shaft of the first motor 10 is fixedly connected to the mounting roller 9. Two sets of mounting rollers 9 are provided, and the two sets of mounting rollers 9 rotate synchronously through a synchronous pulley group 14. The upper and lower two sets of mounting rollers 9 are respectively arranged above the pressing plate 4 and below the cutting box 3.

[0030] When in use, the mounting roller 9 is driven to rotate by the first motor 10, and the two mounting rollers 9 rotate synchronously through the synchronous pulley group 14. Therefore, the two mounting rollers 9 synchronously drive the sand line 13 to rotate, and cooperate with the driving part to cut the graphite block.

[0031] Refer to Figure 3 and Figure 4, the driving part includes a second motor 21 fixedly installed in the installation box 1. A lead screw 20 is fixedly installed at the output end of the second motor 21. The lead screw 20 is threadedly connected to the installation plate 8. When the second motor 21 is started, the second motor 21 drives the lead screw 20 to rotate, and the second lead screw 20 drives the installation plate 8 to slide on the guide rail installation frame 2, and cooperates with the cutting assembly to complete the cutting of the graphite block.

[0032] Referring to Figure 3 and Figure 5 , a receiving box 22 is fixedly installed at the bottom of the installation plate 8. An installation cylinder 15 is fixedly installed on the side wall of the receiving box 22. An installation shaft 16 is rotatably connected to the installation cylinder 15. A fan blade 23 is fixedly connected to the installation shaft 16. The installation shaft 16 is connected to the installation roller 9 through a differential pulley set 17. The top of the installation plate 8 is fixedly connected with an air knife box 18. The air inlet end of the air knife box 18 is connected to the exhaust end of the installation cylinder 15 through an air pipe 19. A filter plate 11 is arranged between the installation cylinder 15 and the receiving box 22. The filter plate 11 can be one of gauze and molecular sieve.

[0033] During the working process of the cutting assembly, the installation roller 9 drives the installation shaft 16 to rotate through the differential pulley set 17, and in the differential pulley set 17, the pulley fixedly installed with the installation roller 9 is larger than the pulley fixedly installed with the installation shaft 16. Therefore, the installation shaft 16 drives the fan blade 23 to rotate rapidly. The rapid rotation of the fan blade 23 drives the air in the installation cylinder 15 to enter the air knife box 18 from the air pipe 19. When the air in the installation cylinder 15 is exhausted, the air pressure in the installation cylinder 15 is less than the air pressure in the receiving box 22. Under the action of the pressure difference, the air in the receiving box 22 enters the installation cylinder 15 and enters the air knife box 18 and is ejected from the air knife box 18 under the action of the fan blade 23, and agglomerates during the process. The air flow at the top of the receiving box 22 flows into the receiving box 22. The powder generated by the cutting assembly cutting the graphite block follows the air flow into the receiving box 22. After being filtered by the filter plate 11, the graphite powder remains in the receiving box 22, while the air flow blows towards the sand line 13 through the air knife box 18 to cool the sand line 13.

[0034] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. A cutting device for producing graphite negative electrodes for lithium batteries, comprising a mounting box (1), characterized in that: Also includes: A guide rail mounting frame (2) is fixedly mounted in the mounting box (1); A cutting box (3) is fixedly mounted on the guide rail mounting frame (2); A pressing plate (4) is arranged in a lifting manner inside the cutting box (3); The bottom of the cutting box (3) and the top of the pressing plate (4) are both provided with threading grooves (7), and the threading grooves (7) are provided in multiple groups, and the multiple groups of threading grooves (7) are evenly spaced. A cutting assembly is slidably arranged on the guide rail mounting frame (2), and a sanding wire (13) is arranged on the cutting assembly. A plurality of sanding wires (13) are arranged, and the plurality of sanding wires (13) pass through two sets of upper and lower threading grooves (7); The driving unit is arranged in the installation box (1) and is used to drive the cutting assembly to move and cut the graphite block.

2. The cutting device for producing graphite negative electrodes for lithium batteries according to claim 1, characterized in that: The cutting assembly comprises a mounting plate (8) slidably connected to the guide rail mounting frame (2); a mounting roller (9) is rotatably mounted on the mounting plate (8); a limiting groove (12) is provided on the mounting roller (9); the sanding line (13) is arranged in the limiting groove (12); a first motor (10) is fixedly mounted on the side wall of the mounting plate (8); and an output shaft of the first motor (10) is fixedly connected to the mounting roller (9).

3. The cutting device for producing graphite negative electrodes for lithium batteries according to claim 2, characterized in that: The installation rollers (9) are provided with two groups, upper and lower, and the two groups of the installation rollers (9) rotate synchronously through a synchronous pulley group (14). The upper and lower groups of the installation rollers (9) are respectively arranged above the pressing plate (4) and below the cutting box (3).

4. The cutting device for producing graphite negative electrodes for lithium batteries according to claim 2, characterized in that: The driving unit comprises a second motor (21) fixedly mounted in the mounting box (1); a screw rod (20) is fixedly mounted on the output end of the second motor (21); and the screw rod (20) is threadedly connected to the mounting plate (8).

5. The cutting device for producing graphite negative electrodes for lithium batteries according to claim 4, characterized in that: A material receiving box (22) is fixedly mounted on the bottom of the mounting plate (8), a mounting cylinder (15) is fixedly mounted on the side wall of the material receiving box (22), a mounting shaft (16) is rotatably connected to the mounting cylinder (15), a fan blade (23) is fixedly connected to the mounting shaft (16), and the mounting shaft (16) is connected to the mounting roller (9) via a differential pulley set (17).

6. The cutting device for producing graphite negative electrodes for lithium batteries according to claim 5, characterized in that: The top of the mounting plate (8) is fixedly connected with a wind knife box (18), and the air inlet end of the wind knife box (18) is connected to the exhaust end of the mounting tube (15) through an air pipe (19).

7. The cutting device for producing graphite negative electrodes for lithium batteries according to claim 5, characterized in that: A filter plate (11) is arranged between the installation cylinder (15) and the material receiving box (22).

8. The cutting device for producing graphite negative electrodes for lithium batteries according to claim 1, characterized in that: A hydraulic cylinder (6) is fixedly mounted on the outer wall of the cutting box (3), a connecting plate (5) is fixedly mounted on the output end of the hydraulic cylinder (6), and the connecting plate (5) is fixedly connected to the pressing plate (4).

Images