Electrode coating and drying machine for lithium battery production

Abstract

The utility model relates to lithium battery production technical field, concretely is a kind of electrode coating drying machine for lithium battery production, including conveying frame, conveying frame inside both ends are equipped with rotating roller, two rotating rollers are equipped with conveying belt, conveying frame both ends are equipped with guiding component, the symmetrically opened air inlet of conveying frame front end face is close to middle and conveying belt corresponding place, conveying frame front end face middle part is equipped with drying assembly;The electrode coating drying machine for lithium battery production is provided with the conveying frame with rotating roller, the conveying belt with air-permeable net is equipped on two rotating rollers, under the cooperation of two air inlets, the air inlet box in drying assembly cooperates with air deflector pipe, respectively to two air inlets blow and cooperate, multiple heating rods heat the air passing in air deflector pipe, and in corresponding air-blast cylinder cooperation, through multiple fans air in air deflector pipe is accelerated and is discharged to the both sides of conveying belt, the electrode coating two sides placed on conveying belt are dried and blown.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery production technology, specifically to an electrode coating and drying machine for lithium battery production. Background Technology

[0002] Electrode coating dryers are a core component of the coating process in lithium battery production. Their main function is to quickly and uniformly dry the electrode slurry coated on the current collector surface, ensuring the structural stability and consistency of the electrode sheets. The utility model CN219880465U discloses an electrode coating and drying machine for lithium battery production, including a drying box. A heat box is fixedly connected to the top of the drying box, and a second motor is fixedly connected to both sides of the front end of the heat box. The output end of the second motor is fixedly connected to one end of a ceramic heating rod, and the ceramic heating rod is fixedly connected to both sides of the inner cavity of the heat box. The above technical solution involves first placing the electrode coating roll on the feed shaft, then placing it in a drying oven. The conveyor shaft is driven by a first motor to transport the electrode coating inward. A second motor drives a ceramic heating rod to heat the material. The heat is then distributed evenly on the electrode coating through a heat dissipation vent and a cooling fan to prevent the material from overheating, which could cause the organic solvent inside the electrode to evaporate too quickly, resulting in cracking or peeling of the coating on the electrode surface. This saves processing costs. However, after the ceramic heating rod heats up, it is not convenient to evenly dry both sides of the electrode coating passing below. This makes it difficult to achieve rapid drying of the electrode coating and reduce uneven heating that could affect its use. Under the action of the conveyor shaft, the electrode coating that needs to be dried is prone to falling between the two conveyor shafts, affecting continuous transport. Furthermore, the ends of the electrode coating are prone to falling into the space between the conveyor shafts. Utility Model Content

[0003] The purpose of this invention is to provide an electrode coating and drying machine for lithium battery production, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: An electrode coating and drying machine for lithium battery production includes a conveyor frame, a top plate for disassembly and replacement, rotating rollers at both ends inside the conveyor frame, a conveyor belt between the two rotating rollers, a plurality of breathable meshes on the outer wall of the conveyor belt, guide components at both ends of the conveyor frame, air inlets symmetrically opened near the middle of the front end face of the conveyor frame corresponding to the conveyor belt, and a drying component at the middle of the front end face of the conveyor frame. The drying assembly includes an air outlet box and air ducts symmetrically arranged at the rear end of the air outlet box. The ends of the air ducts are inserted into the air inlets. A heating box is located between the two air ducts. The top of the heating box has an installation groove. An installation frame plate is provided in the installation groove. Several heating rods are provided in the middle of the installation frame plate. Each air duct has a slot at its front end. A fixing plate is provided in the slot. Several blowers are provided on the fixing plate. The guiding assembly includes two symmetrical baffles, each with a U-shaped groove on its opposite side, and a guiding roller between the two U-shaped grooves.

[0005] Furthermore, a motor is provided on the outer wall of the conveyor frame. The motor is fixedly connected to the outer wall of the conveyor frame by screws. The output shaft of the motor is connected to a coupling, and the center of the coupling is fixedly connected to the shaft of the corresponding roller.

[0006] In this invention, the motor is electrically connected to an external power source via a wire. With the cooperation of a coupling, the rotating shaft of the roller is connected to the output shaft of the motor. The motor provides power to realize the synchronous rotation of one of the rollers, thus providing conveying power.

[0007] Specifically, the rotating roller is rotatably connected to the conveyor frame via a rotating shaft, the inner wall of the conveyor belt is tightly fitted to the outer wall of the rotating roller, the breathable mesh is evenly distributed, and the breathable mesh is fixedly connected to the conveyor belt by screws.

[0008] In this invention, the conveyor belt and the outer wall of the rotating roller are closely fitted. Under the action of friction, the conveyor belt and the rotating roller rotate synchronously. With the cooperation of multiple breathable meshes, the electrode coating is conveniently laid on the upper and lower parts of the conveyor belt for ventilation and drying by hot air blowing, thus increasing the comprehensiveness and thoroughness of electrode coating drying.

[0009] It should be noted that slots are provided at the top of the conveyor frame near the corners, and insert plates are provided at the four corners of the lower surface of the top plate. The top of the insert plates is welded and fixed to the bottom of the top plate, and the width of the outer wall of the insert plate is adapted to the width of the inner wall of the slot.

[0010] In this invention, the insert plate and the slot are plugged in to achieve quick and stable installation of the top plate and the conveyor frame. When it is necessary to inspect the inside of the conveyor frame, the top plate can be easily and quickly separated from the top of the conveyor frame.

[0011] Furthermore, one end of the baffle is fixedly connected to the end of the conveyor frame by screws, and the guide roller is rotatably connected to the bottom of the U-shaped groove via a rotating shaft.

[0012] In this invention, both sets of baffles are matched with corresponding guide rollers. The electrode coating that needs to be dried is supported above the guide rollers, reducing friction damage caused by contact with the end of the conveyor frame.

[0013] Specifically, the air inlets are distributed on both sides of the conveyor belt, and one end of the air guide pipe is inserted into the middle of the air inlet and fixed to the conveyor frame with screws.

[0014] In this invention, the upper air inlet blows air onto the upper surface of the conveyor belt, and the lower air inlet blows air onto the inner wall of the conveyor belt. With the cooperation of the two air guide pipes, hot air is guided into both sides of the conveyor belt to dry the electrode coating placed on the upper surface of the conveyor belt.

[0015] It is worth noting that the other end of the air duct is inserted into the air outlet box and fixed by screws. The heating box runs through the two air ducts. The width of the outer wall of the mounting frame plate is adapted to the width of the inner wall of the mounting groove. The heating rods are distributed at equal intervals. The top of the mounting frame plate is symmetrically provided with handles.

[0016] In this invention, the internal space of the heating box is interconnected with the interior of the two air ducts. The mounting frame plate is inserted into the mounting groove, and multiple heating rods pass through the air ducts to heat the air passing through the internal space of the two air ducts. With the help of the pull handle, the mounting frame plate can be easily removed and replaced.

[0017] Furthermore, the width of the outer wall of the fixing plate is adapted to the width of the inner wall of the slot, the blowers are evenly distributed and fixed to the fixing plate by screws, the blowers are connected to the interior of the ventilation box and the interior of the corresponding air guide pipe, each blower is equipped with a fan, and the outer port of the ventilation box is equipped with a protective net.

[0018] In this invention, the fixing plate is fixedly connected to the air duct by screws. With the cooperation of multiple blowers with fans, the air duct draws air from inside the air outlet box and into the interior. With the cooperation of the protective net, the air entering the air outlet box is filtered.

[0019] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model features a conveyor frame with rotating rollers, a conveyor belt with a breathable mesh fitted onto two rotating rollers, a motor providing conveying power, and two air inlets. The air outlet box in the drying assembly, in conjunction with the air guide pipe, blows air into the two air inlets, with the air inlets corresponding to the two sides of the conveyor belt. A heating box with a mounting frame is attached to the air guide pipe, and multiple heating rods heat the air passing through the air guide pipe. In conjunction with the corresponding blower, multiple fans accelerate the air in the air guide pipe into both sides of the conveyor belt, drying and blowing the electrodes placed on the conveyor belt on both sides.

[0020] 2. This utility model achieves quick installation or disassembly of the top plate by setting a slot for the top plate to be inserted into the slot on the insert plate and the conveyor frame. Two sets of guiding components and two guiding rollers facilitate the guidance of electrode coating and reduce the electrode coating from touching the two ends of the conveyor frame, thus reducing friction damage. Multiple breathable nets, in conjunction with the conveyor belt, help to ventilate the top and bottom of the conveyor belt, so that the electrode coating can be dried by blowing air on both sides. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the top plate opening structure of this utility model; Figure 3 This is a schematic diagram of the guiding component structure of this utility model; Figure 4 This is a schematic diagram of the separation structure of the conveyor belt and the conveyor frame of this utility model; Figure 5 This is a schematic diagram showing the separation of the conveyor frame and the drying component of this utility model; Figure 6 This is a schematic diagram of the drying component structure of this utility model; Figure 7 This is a schematic diagram of the overall cross-sectional structure of this utility model.

[0022] The meanings of the labels in the diagram are as follows: 1. Conveyor frame; 10. Slot; 11. Rotary roller; 12. Air inlet; 2. Conveyor belt; 20. Breathable mesh; 3. Top plate; 30. Insert plate; 4. Drying assembly; 40. Air outlet box; 41. Air duct; 410. Card slot; 411. Fixing plate; 412. Blower; 413. Fan; 42. Heating box; 420. Mounting slot; 43. Mounting frame plate; 430. Heating rod; 431. Pull handle; 44. Protective net; 5. Electric motor; 6. Guiding assembly; 60. Baffle; 600. U-shaped groove; 61. Guiding roller. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-7This embodiment provides a technical solution: An electrode coating and drying machine for lithium battery production includes a conveyor frame 1. The top of the conveyor frame 1 is provided with a top plate 3 for disassembly and replacement. Slots 10 are provided near the corners of the top of the conveyor frame 1. Insert plates 30 are provided near the four corners of the lower surface of the top plate 3. The top of the insert plate 30 is welded and fixed to the bottom of the top plate 3. The width of the outer wall of the insert plate 30 is adapted to the width of the inner wall of the slot 10.

[0025] In this utility model, the insert plate 30 is inserted into the slot 10 to achieve quick and stable installation of the top plate 3 and the conveyor frame 1. When it is necessary to inspect the inside of the conveyor frame 1, the top plate 3 can be easily and quickly separated from the top of the conveyor frame 1.

[0026] Furthermore, the conveyor frame 1 has rollers 11 at both ends inside, and a motor 5 is provided on the outer wall of the conveyor frame 1. The motor 5 is fixedly connected to the outer wall of the conveyor frame 1 by screws. The output shaft of the motor 5 is connected to a coupling, and the center of the coupling is fixedly connected to the shaft of the corresponding roller 11.

[0027] In this invention, the motor 5 is electrically connected to an external power source via a wire. With the cooperation of a coupling, the rotating shaft of the roller 11 is connected to the output shaft of the motor 5. The motor 5 provides power to realize the synchronous rotation of one of the rollers 11, thus providing conveying power.

[0028] Specifically, a conveyor belt 2 is fitted between two rotating rollers 11. Several breathable nets 20 are provided on the outer wall of the conveyor belt 2. The rotating rollers 11 are rotatably connected to the conveyor frame 1 through a rotating shaft. The inner wall of the conveyor belt 2 is tightly attached to the outer wall of the rotating rollers 11. The breathable nets 20 are evenly distributed and are fixedly connected to the conveyor belt 2 by screws.

[0029] In this invention, the conveyor belt 2 and the outer wall of the rotating roller 11 are closely fitted. Under the action of friction, the conveyor belt 2 and the rotating roller 11 rotate synchronously. With the cooperation of multiple breathable nets 20, the electrode coating is conveniently laid on the upper and lower parts of the conveyor belt 2 for ventilation and drying, which facilitates the drying of the electrode coating with hot air and increases the comprehensiveness and sufficiency of the drying process.

[0030] Secondly, guide components 6 are provided at both ends of the conveyor frame 1, and air inlets 12 are symmetrically opened on the front surface of the conveyor frame 1 near the middle, corresponding to the conveyor belt 2. A drying component 4 is provided in the middle of the front surface of the conveyor frame 1. It should be noted that the drying component 4 includes an air outlet box 40 and air guide pipes 41 symmetrically arranged at the rear end of the air outlet box 40. The end of the air guide pipe 41 is inserted into the air inlet 12. A heating box 42 is provided between the two air guide pipes 41. An installation groove 420 is opened on the top of the heating box 42. An installation frame plate 43 is provided in the installation groove 420. Several heating rods 430 are provided in the middle of the installation frame plate 43. A slot 410 is opened at the front end of each air guide pipe 41. A fixing plate 411 is provided in the slot 410. Several blowers 412 are provided on the fixing plate 411. Furthermore, the air inlets 12 are distributed on both sides of the conveyor belt 2, and one end of the air guide pipe 41 is inserted into the middle of the air inlet 12, and the air guide pipe 41 is fixed to the conveyor frame 1 by screws.

[0031] In this invention, the upper air inlet 12 blows air onto the upper surface of the conveyor belt 2, and the lower air inlet 12 blows air onto the inner wall of the conveyor belt 2. With the cooperation of the two air guide pipes 41, hot air is guided into both sides of the conveyor belt 2 to dry the electrode coating placed on the upper surface of the conveyor belt 2.

[0032] Specifically, the other end of the air duct 41 is plugged into the air outlet box 40 and fixed by screws. The heating box 42 passes through the two air ducts 41. The width of the outer wall of the mounting frame plate 43 is matched with the width of the inner wall of the mounting groove 420. The heating rods 430 are evenly distributed. The top of the mounting frame plate 43 is symmetrically provided with handles 431.

[0033] In this utility model, the internal space of the heating box 42 is interconnected with the interior of the two air ducts 41. The mounting frame plate 43 is inserted into the mounting groove 420, and multiple heating rods 430 pass through the air ducts 41 to heat the air passing through the internal space of the two air ducts 41. With the help of the handle 431, the mounting frame plate 43 can be easily removed and replaced.

[0034] Furthermore, the width of the outer wall of the fixing plate 411 is adapted to the width of the inner wall of the slot 410. The blowers 412 are evenly distributed and fixed to the fixing plate 411 by screws. The blowers 412 are connected to the interior of the ventilation box 40 and the interior of the corresponding air duct 41. Each blower 412 is equipped with a fan 413, and the outer port of the ventilation box 40 is equipped with a protective net 44.

[0035] In this utility model, the fixing plate 411 is fixedly connected to the air duct 41 by screws. With the cooperation of multiple blowers 412 with fans 413, the air duct 41 draws air from the inside of the air outlet box 40 and enters the interior. With the cooperation of the protective net 44, the air entering the air outlet box 40 is filtered.

[0036] It is worth adding that the guide component 6 includes two symmetrical baffles 60, each of which has a U-shaped groove 600 on its opposite side, and a guide roller 61 is provided between the two U-shaped grooves 600.

[0037] Furthermore, one end of the baffle 60 is fixedly connected to the end of the conveyor frame 1 by screws, and the guide roller 61 is rotatably connected to the bottom of the U-shaped groove 600 through a rotating shaft.

[0038] In this invention, both sets of baffles 60 are matched with corresponding guide rollers 61. The electrode coating that needs to be dried is supported above the guide rollers 61, reducing friction damage caused by contact with the end of the conveyor frame 1.

[0039] In this embodiment, when the electrode coating dryer for lithium battery production is in use, firstly, the rotating roller 11 is rotated and combined with the conveyor frame 1 via the rotating shaft. The motor 5 is fixed on the outer wall of the conveyor frame 1, and the output shaft of the motor 5 is connected to the rotating shaft of the rotating roller 11 via a coupling. Then, the conveyor belt 2 with the breathable mesh 20 is sleeved on the two rotating rollers 11. The air guide pipe 41 is combined and fixed with the air outlet box 40, and the air guide pipe 41 is inserted into the air inlet 12. The mounting frame plate 43 with multiple heating rods 430 is inserted and matched with the mounting groove 420. The blower 412 with the fan 413 is fixed on the fixing plate 411, and the fixing plate 411 is combined and fixed with the air guide pipe 41. Finally, the protective mesh 44 is fixed to the end of the air outlet box 40. The guide roller 61 is engaged in the U-shaped groove 600 between the baffles 60 via a rotating shaft. The electrode coatings to be dried pass over the guide roller 61 in sequence and enter the conveyor frame 1. The electrode coatings cover the conveyor belt 2 with a breathable mesh 20. The heating rod 430 is electrically connected to an external power source via a wire. The control switch controls the heating rod 430 to turn on. The fan 413 is connected to an external power source and continuously draws air from the air outlet box 40 into the air duct 41. The air in the air duct 41 is heated by the heating rod 430 and blown into both sides of the conveyor belt 2 from the corresponding air inlet 12. The electrode coatings placed on the conveyor belt 2 are dried by hot air. The electrode coatings dried by hot air are discharged from the right end of the conveyor frame 1 and guided by another guide roller 61 to be discharged and collected. The top plate 3 is separated from the slot 10 by the insert plate 30, so that the top plate 3 can be removed for inspection and maintenance on the conveyor belt 2.

Claims

1. An electrode coating and drying machine for lithium battery production, comprising a conveyor frame (1), characterized in that: The conveyor frame (1) has a top plate (3) for disassembly and replacement. The conveyor frame (1) has rollers (11) at both ends inside. A conveyor belt (2) is sleeved between the two rollers (11). Several breathable nets (20) are provided on the outer wall of the conveyor belt (2). Guide components (6) are provided at both ends of the conveyor frame (1). Air inlets (12) are symmetrically opened on the front end face of the conveyor frame (1) near the middle, corresponding to the conveyor belt (2). A drying component (4) is provided in the middle of the front end face of the conveyor frame (1). The drying assembly (4) includes an air outlet box (40) and air ducts (41) symmetrically arranged at the rear end of the air outlet box (40). The end of the air duct (41) is inserted into the air inlet (12). A heating box (42) is provided between the two air ducts (41). An installation groove (420) is provided on the top of the heating box (42). An installation frame plate (43) is provided in the installation groove (420). Several heating rods (430) are provided in the middle of the installation frame plate (43). A slot (410) is provided at the front end of each air duct (41). A fixing plate (411) is provided in the slot (410). Several blowers (412) are provided on the fixing plate (411). The guide assembly (6) includes two symmetrical baffles (60), each of the two baffles (60) having a U-shaped groove (600) on its opposite side, and a guide roller (61) is provided between the two U-shaped grooves (600).

2. The electrode coating and drying machine for lithium battery production according to claim 1, characterized in that: The outer wall of the conveyor frame (1) is provided with a motor (5). The motor (5) is fixedly connected to the outer wall of the conveyor frame (1) by screws. The output shaft of the motor (5) is connected to a coupling. The center of the coupling is fixedly connected to the shaft of the corresponding roller (11).

3. The electrode coating and drying machine for lithium battery production according to claim 1, characterized in that: The rotating roller (11) is rotatably connected to the conveyor frame (1) via a rotating shaft. The inner wall of the conveyor belt (2) is closely attached to the outer wall of the rotating roller (11). The breathable mesh (20) is evenly distributed and is fixedly connected to the conveyor belt (2) by screws.

4. The electrode coating and drying machine for lithium battery production according to claim 1, characterized in that: The top of the conveyor (1) is provided with slots (10) near the corners, and the bottom surface of the top plate (3) is provided with inserts (30) near the four corners. The top of the inserts (30) is welded and fixed to the bottom of the top plate (3). The width of the outer wall of the inserts (30) is adapted to the width of the inner wall of the slots (10).

5. The electrode coating and drying machine for lithium battery production according to claim 1, characterized in that: One end of the baffle (60) is fixedly connected to the end of the conveyor frame (1) by screws, and the guide roller (61) is rotatably connected to the bottom of the U-shaped groove (600) through a rotating shaft.

6. The electrode coating and drying machine for lithium battery production according to claim 1, characterized in that: The air inlets (12) are distributed on both sides of the conveyor belt (2), and one end of the air guide pipe (41) is inserted into the middle of the air inlet (12), and the air guide pipe (41) is fixed to the conveyor frame (1) by screws.

7. The electrode coating and drying machine for lithium battery production according to claim 1, characterized in that: The other end of the air duct (41) is inserted into the air outlet box (40) and fixed by screws. The heating box (42) passes through the two air ducts (41). The width of the outer wall of the mounting frame (43) is adapted to the width of the inner wall of the mounting groove (420). The heating rods (430) are distributed at equal intervals. The top of the mounting frame (43) is symmetrically provided with handles (431).

8. The electrode coating and drying machine for lithium battery production according to claim 7, characterized in that: The width of the outer wall of the fixing plate (411) is adapted to the width of the inner wall of the slot (410). The blowers (412) are evenly distributed and fixed to the fixing plate (411) by screws. The blowers (412) are connected to the interior of the ventilation box (40) and the interior of the corresponding air guide pipe (41). Each blower (412) is equipped with a fan (413). The outer port of the ventilation box (40) is equipped with a protective net (44).

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