Lithium battery diaphragm coating device

Abstract

The utility model discloses a lithium battery diaphragm coating device, which relates to the technical field of lithium battery manufacturing equipment and comprises a storage bin, a first mounting bin, a second mounting bin, a storage bin, a spraying bin and a stirring bin. A first motor is fixedly mounted in the first mounting bin, an output shaft of the first motor is fixedly connected with a stirring rod, the stirring rod is mounted in the stirring bin, a second motor is fixedly mounted in the second mounting bin, and a turnover mechanism is arranged in the spraying bin; one end of the turnover mechanism is rotationally connected with the side wall of the spraying bin, the other end of the turnover mechanism penetrates through the side wall of the spraying bin to be fixedly connected with the second motor, the second motor can drive the turnover mechanism to turn over and can be matched with the spraying head to achieve multi-face uniform spraying, and redundant spraying materials can flow back to the stirring bin; the problems that in the prior art, the lithium battery placed in a film coating bin can only be sprayed through a moving block, and uniform spraying of the spraying face is difficult to achieve are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery manufacturing equipment, in particular to a lithium battery diaphragm coating device. Background Art

[0002] Lithium battery is a type of battery that uses lithium metal or lithium alloy as negative electrode material and non-aqueous electrolyte solution. In the lithium battery manufacturing process, the coating of the diaphragm is one of the important links.

[0003] The Chinese utility model with publication number CN210098036U proposes a coating device for lithium battery production and processing, including a first installation bin, the outer side of the first installation bin is connected to a feed port, and a storage barrel is arranged on the inner side of the feed port, a rotating motor is installed directly below the storage barrel, and a stirring blade is connected to the output end of the rotating motor, a first diaphragm pump is installed on one side of the rotating motor inside the first installation bin, and a discharge pipe is connected to the output end of the first diaphragm pump.

[0004] However, the existing technology still has shortcomings:

[0005] 1. Generally speaking, lithium batteries are mainly composed of positive electrodes, negative electrodes and diaphragms, and the diaphragms are usually located between the positive and negative electrodes to prevent short circuits and provide ion channels. The above-mentioned device can only spray the lithium batteries placed in the coating chamber by moving fast, and it is difficult to achieve uniform spraying on the spraying surface.

[0006] 2. The paint is transported and reused through the first diaphragm pump, the second diaphragm pump and multiple pipes. The structure is relatively complicated and multiple pipes are prone to cause adhesion and waste of paint. Utility Model Content

[0007] The utility model aims to at least solve the technical problems existing in the prior art. To this end, the utility model proposes a lithium battery battery separator coating device, which solves the problem that the prior art can only spray the lithium battery placed in the coating bin by moving quickly, and it is difficult to achieve uniform spraying on the spraying surface.

[0008] To achieve the above-mentioned purpose, the utility model proposes a lithium battery battery diaphragm coating device, including a storage bin, a first installation bin, a second installation bin, a material storage bin, a spraying bin, and a stirring bin; a first motor is fixedly installed in the first installation bin, and the output shaft of the first motor is fixedly connected to a stirring rod, and the stirring rod is installed in the stirring bin; a second motor is fixedly installed in the second installation bin; a flipping mechanism is arranged in the spraying bin, and one end of the flipping mechanism is rotatably connected to the side wall of the spraying bin, and the other end passes through the side wall of the spraying bin and is fixedly connected to the second motor. A third motor is fixedly installed on the upper end of the spraying bin, a fixed block is fixedly installed on the second mounting bin, a pair of guide rods are fixedly installed between the third motor and the fixed block, a threaded rod is arranged between the third motor and the fixed block, a moving block is arranged on the threaded rod and the guide rod, and a spray head is arranged in the moving block; a diaphragm pump is arranged in the first mounting bin, the water inlet of the diaphragm pump extends toward the stirring bin, a transport pipe is fixedly installed at the water outlet of the diaphragm pump, one end of the transport pipe is fixedly connected to the diaphragm pump, and the other end is fixedly connected to the spray head.

[0009] As a further solution of the utility model, the lower side of the spraying bin is fixedly connected to the stirring bin, the two sides of the spraying bin are respectively fixedly connected to the storage bin and the second installation bin, the two sides of the stirring bin are respectively fixedly connected to the first installation bin and the storage bin, the first installation bin is fixedly connected to the storage bin, and the second installation bin is fixedly connected to the storage bin.

[0010] As a further solution of the utility model, one end of the stirring rod passes through the side wall of the stirring chamber and is fixedly connected to the first motor, and the other end is rotatably connected to the side wall of the stirring chamber, and an arc block is fixedly installed on the end of the stirring shaft of the stirring rod.

[0011] As a further solution of the utility model, one end of the flipping mechanism is fixedly connected to a bearing, the inner ring of the bearing is fixedly connected to the flipping mechanism, and the outer ring of the bearing is fixedly connected to the side wall of the spraying chamber.

[0012] As a further solution of the utility model, the flipping mechanism includes a connecting rod, a snap hole, and a connecting plate; connecting plates are symmetrically fixedly installed on both sides of the connecting rod, and a plurality of snap holes are opened in the connecting plate. One end of the connecting rod is fixedly connected to the second motor, and the other end is fixedly connected to the inner ring of the bearing.

[0013] As a further solution of the utility model, one end of the threaded rod is fixedly connected to the third motor, and the other end is rotatably connected to the fixed block, and the guide rod is symmetrically installed at both ends of the threaded rod.

[0014] As a further solution of the utility model, the transport tube is composed of a rubber tube with a certain elasticity.

[0015] As a further solution of the utility model, heating plates are fixedly installed in the two side walls of the spraying chamber, a V-shaped plate is arranged below the spraying chamber, and a leakage hole is arranged at the bottom of the V-shaped plate.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. By setting a second motor and a flipping mechanism; the flipping mechanism includes a connecting rod, a buckle hole, and a connecting plate; the processed lithium battery is pressed and fixed in the buckle hole, and the second motor is started to drive the flipping mechanism to flip, and cooperate with the nozzle to achieve multi-faceted spraying of the processed lithium battery;

[0018] 2. By setting up a V-shaped plate and a diaphragm pump; the water inlet of the diaphragm pump extends to the mixing chamber, and the water outlet of the diaphragm pump is fixedly connected to the nozzle through a transport pipe. The diaphragm pump is started to extract paint from the mixing chamber through the transport pipe, and the paint is sprayed to the flip mechanism by the nozzle. The excess paint sprayed by the nozzle flows from both sides of the V-shaped plate to the bottom, and then flows back into the mixing chamber, so as to realize the recycling of excess paint. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of a lithium battery separator coating device of the utility model;

[0020] Figure 2 This is a side view of a lithium battery separator coating device of the utility model;

[0021] Figure 3 The utility model is a top view of a flipping mechanism of a lithium battery diaphragm coating device.

[0022] In the figure: 1. storage bin; 2. first installation bin; 3. second installation bin; 4. storage bin; 5. feed port; 6. heating plate; 7. spray bin; 8. stirring bin; 9. first motor; 10. stirring rod; 11. second motor; 12. flip mechanism; 13. third motor; 14. threaded rod; 15. guide rod; 16. moving block; 17. nozzle; 18. V-shaped plate; 19. connecting rod; 20. snap hole; 21. bearing; 22. connecting plate; 23. diaphragm pump; 24. transport pipe; 25. fixing block. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1-3 As shown, a lithium battery separator coating device includes a storage bin 1, a first installation bin 2, a second installation bin 3, a material storage bin 4, a spraying bin 7, and a stirring bin 8; the lower side of the spraying bin 7 is fixedly connected to the stirring bin 8, the two sides of the spraying bin 7 are respectively fixedly connected to the storage bin 1 and the second installation bin 3, the two sides of the stirring bin 8 are respectively fixedly connected to the first installation bin 2 and the material storage bin 4, the first installation bin 2 is fixedly connected to the storage bin 1, and the second installation bin 3 is fixedly connected to the storage bin 4; the storage bin 1 is used to place installation parts and other sundries; a first motor 9 is fixedly installed in the first installation bin 2, and a stirring rod 10 is fixedly connected to the output shaft of the first motor 9, and the stirring rod 10 is installed at In the stirring bin 8, one end of the stirring rod 10 passes through the side wall of the stirring bin 8 and is fixedly connected to the first motor 9, and the other end is rotatably connected to the side wall of the stirring bin 8. An arc block is fixedly installed at the end of the stirring shaft of the stirring rod 10, and the purpose is to start the first motor 9 to drive the stirring rod 10 to rotate. The stirring rod 10 stirs the paint in the stirring bin 8. The arc block on the stirring rod 10 can scrape off the lumps at the bottom of the stirring bin 8. At the same time, the stirring rod 10 is arranged horizontally, which can effectively prevent the paint from stratifying; the storage bin 4 is arranged for the purpose of storing the processed paint, and a feeding port 5 is arranged between the storage bin 4 and the stirring bin 8; the feeding port 5 can be opened to add paint to the stirring bin 8 at any time;

[0025] As an implementation method in this embodiment, a second motor 11 is fixedly installed in the second installation bin 3, and a flip mechanism 12 is arranged in the spraying bin 7. One end of the flip mechanism 12 is rotatably connected to the side wall of the spraying bin 7, and the other end passes through the side wall of the spraying bin 7 and is fixedly connected to the second motor 11. One end of the flip mechanism 12 is fixedly connected to a bearing 21, and the inner ring of the bearing 21 is fixedly connected to the flip mechanism 12, and the outer ring of the bearing 21 is fixedly connected to the side wall of the spraying bin 7. The flip mechanism 12 includes a connecting rod 19, a buckle hole 20, and a connecting plate 22; connecting plates 22 are symmetrically fixedly installed on both sides of the connecting rod 19, and a plurality of buckle holes 20 are opened in the connecting plate 22. One end of the connecting rod 19 is fixedly connected to the second motor 11, and the other end is fixedly connected to the inner ring of the bearing 21; the lithium battery for processing is pressed and fixed in the buckle hole 20, and the second motor 11 is started to drive the flip mechanism 12 to flip, so as to realize multi-sided spraying of the lithium battery for processing;

[0026] As an implementation method in this embodiment, a third motor 13 is fixedly installed on the upper end of the spraying chamber 7, a fixed block 25 is fixedly installed on the second installation chamber 3, a pair of guide rods 15 are fixedly installed between the third motor 13 and the fixed block 25, a threaded rod 14 is arranged between the third motor 13 and the fixed block 25, one end of the threaded rod 14 is fixedly connected to the third motor 13, and the other end is rotatably connected to the fixed block 25, the guide rod 15 is symmetrically installed at both ends of the threaded rod 14, and a moving block 16 is arranged on the threaded rod 14 and the guide rod 15, and a nozzle 17 is arranged in the moving block 16; a diaphragm pump 23 is arranged in the first installation chamber 2, and the water inlet of the diaphragm pump 23 extends toward the stirring The transport pipe 24 is fixedly installed at the water outlet of the diaphragm pump 23, one end of the transport pipe 24 is fixedly connected to the diaphragm pump 23, and the other end is fixedly connected to the nozzle 17, and the transport pipe 24 is composed of a rubber tube with a certain elasticity; the third motor 13 is started to drive the threaded rod 14 to rotate, and the rotation of the threaded rod 14 drives the moving block 16 to move, wherein the guide rod 15 guides the moving block 16, and the movement of the moving block 16 drives the nozzle 17 to move, and the diaphragm pump 23 is started to extract the paint from the mixing bin 8 through the transport pipe 24, and the paint is sprayed to the flip mechanism 12 by the nozzle 17, and then the lithium battery on the flip mechanism 12 is evenly sprayed through the cooperation of the second motor 11;

[0027] As an implementation method in this embodiment, a heating plate 6 is fixedly installed in the two side walls of the spray chamber 7, a V-shaped plate 18 is arranged below the spray chamber 7, and a leakage hole is arranged at the bottom of the V-shaped plate 18. The excess paint sprayed by the nozzle 17 flows from the two sides of the V-shaped plate 18 to the bottom, and then flows back into the stirring chamber 8, thereby realizing the recycling of excess paint. After the spraying is completed, starting the heating plate 6 can heat the lithium battery in the flip mechanism 12, thereby accelerating the efficiency of the paint drying.

[0028] Working principle:

[0029] Open the feed port 5, put the paint in the storage bin 4 into the stirring bin 8, start the first motor 9 to drive the stirring rod 10 to rotate, the stirring rod 10 stirs the paint in the stirring bin 8, the diaphragm pump 23 draws the paint from the stirring bin 8 through the transport pipe 24, and sprays it to the flip mechanism 12 by the nozzle 17, and starts the second motor 11 to drive the flip mechanism 12 to flip, so as to realize multi-sided spraying of the processed lithium battery; the sprayed excess paint flows from both sides of the V-shaped plate 18 to the bottom, and finally flows back into the stirring bin 8, so as to realize the recovery and secondary utilization of the excess paint. After the spraying is completed, the heating plate 6 is started to heat the lithium battery in the flip mechanism 12 to accelerate the air-drying efficiency of the paint.

[0030] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A lithium battery separator coating device, characterized in that: The invention comprises a storage bin (1), a first installation bin (2), a second installation bin (3), a material storage bin (4), a spraying bin (7), and a stirring bin (8); a first motor (9) is fixedly installed in the first installation bin (2); an output shaft of the first motor (9) is fixedly connected to a stirring rod (10); the stirring rod (10) is installed in the stirring bin (8); a second motor (11) is fixedly installed in the second installation bin (3); a turning mechanism (12) is arranged in the spraying bin (7); one end of the turning mechanism (12) is rotatably connected to the side wall of the spraying bin (7); the other end passes through the side wall of the spraying bin (7) and is fixedly connected to the second motor (11); a third motor (13) is fixedly installed on the upper end of the spraying bin (7); and the second A fixed block (25) is fixedly mounted on the mounting bin (3); a pair of guide rods (15) are fixedly mounted between the third motor (13) and the fixed block (25); a threaded rod (14) is arranged between the third motor (13) and the fixed block (25); a moving block (16) is arranged on the threaded rod (14) and the guide rod (15); a spray head (17) is arranged in the moving block (16); a diaphragm pump (23) is arranged in the first mounting bin (2); a water inlet of the diaphragm pump (23) extends toward the stirring bin (8); a transport pipe (24) is fixedly mounted on the water outlet of the diaphragm pump (23); one end of the transport pipe (24) is fixedly connected to the diaphragm pump (23), and the other end is fixedly connected to the spray head (17).

2. A lithium battery separator coating device according to claim 1, characterized in that: The lower side of the spraying bin (7) is fixedly connected to the stirring bin (8); the two sides of the spraying bin (7) are respectively fixedly connected to the storage bin (1) and the second installation bin (3); the two sides of the stirring bin (8) are respectively fixedly connected to the first installation bin (2) and the storage bin (4); the first installation bin (2) is fixedly connected to the storage bin (1); and the second installation bin (3) is fixedly connected to the storage bin (4).

3. A lithium battery separator coating device according to claim 1, characterized in that: One end of the stirring rod (10) passes through the side wall of the stirring chamber (8) and is fixedly connected to the first motor (9), and the other end is rotatably connected to the side wall of the stirring chamber (8). An arc block is fixedly installed at the end of the stirring shaft of the stirring rod (10).

4. A lithium battery separator coating device according to claim 1, characterized in that: A bearing (21) is fixedly connected to one end of the flipping mechanism (12), an inner ring of the bearing (21) is fixedly connected to the flipping mechanism (12), and an outer ring of the bearing (21) is fixedly connected to the side wall of the spraying chamber (7).

5. A lithium battery separator coating device according to claim 4, characterized in that: The flip mechanism (12) comprises a connecting rod (19), a snap hole (20), and a connecting plate (22); the connecting plates (22) are symmetrically fixedly installed on both sides of the connecting rod (19), and a plurality of snap holes (20) are provided in the connecting plate (22); one end of the connecting rod (19) is fixedly connected to the second motor (11), and the other end is fixedly connected to the inner ring of the bearing (21).

6. A lithium battery separator coating device according to claim 1, characterized in that: One end of the threaded rod (14) is fixedly connected to the third motor (13), and the other end is rotatably connected to the fixed block (25). The guide rod (15) is symmetrically mounted on both ends of the threaded rod (14).

7. A lithium battery separator coating device according to claim 1, characterized in that: The transport pipe (24) is made of a rubber pipe with certain elasticity.

8. A lithium battery separator coating device according to claim 1, characterized in that: A heating plate (6) is fixedly installed in the two side walls of the spraying chamber (7), a V-shaped plate (18) is arranged below the spraying chamber (7), and a leakage hole is arranged at the bottom of the V-shaped plate (18).

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