Coating machine for lithium battery production

Abstract

The utility model relates to the technical field of lithium battery processing equipment, in particular to a coating machine for lithium battery production, which comprises a base, a bearing platform and the like, the middle of the top of the base is fixedly connected with the bearing platform, and the coating machine also comprises a coating component and the like; a coating assembly used for conducting double-face coating on the foil is arranged on the left side of the top of the base, a drying assembly used for drying the surface of the foil is arranged on the top of the bearing platform, and a filtering assembly used for filtering and removing gaseous coating is arranged on the drying assembly. The motor drives the two sliding blocks to be far away from each other through the two-way lead screw, so that the distance between the two coating rollers is increased, a worker can conveniently install the foil between the two coating rollers, the worker can conveniently and continuously pull the foil towards the right side by turning the rotating frame upwards to be opened, and meanwhile through the arrangement of the two coating rollers, the coating efficiency is improved. And double-sided coating operation can be carried out on the foil, so that the working efficiency of coating is better improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery processing equipment, in particular to a coating machine for lithium battery production. Background Art

[0002] Lithium battery coating is a crucial technology in the lithium battery manufacturing process. It aims to coat the positive and negative electrode materials on the conductive collector, i.e. the foil, to form a coating with uniform thickness. The coating machine first coats one side of the foil, dries it after coating, and then coats the other side of the foil. After coating the other side of the foil, it is dried. During the drying process, the coating will be evaporated into gas. Inhaling too much gaseous coating will cause harm to the user's body.

[0003] Patent announcement number CN219615993U discloses a lithium battery coating machine, including: a bottom plate, a plurality of heating elements, a coating mechanism and a fixed frame; a heating groove is provided on the first surface of the bottom plate, each heating element is connected to the inner side wall of the heating groove, a coating frame is connected to the first surface of the bottom plate, a coating roller is rotatably arranged on the coating frame, a fixed frame is connected to the first surface of the bottom plate, a cavity is provided on the fixed frame, a through groove is provided on the fixed frame, an air outlet is provided on the fixed frame, an exhaust fan is connected to the inner side wall of the through groove, a filter box is connected to the fixed frame, a filter box is provided with a filter groove, an air inlet is provided on one side of the filter box, a first end of the exhaust pipe is connected to the air outlet, a second end of the exhaust pipe is connected to the air inlet, a winding frame is connected to the first surface of the bottom plate, and a winding roller is rotatably connected to the winding frame. The user can add filtered liquid into the filter groove, so that the gas drawn into the filter groove by the exhaust fan can be mixed with the filtered liquid, which can reduce the user's inhalation of gaseous paint.

[0004] However, during the implementation of the above solution, the coating roller can only process one side of the foil, and the coating roller and the fixing frame are both fixedly installed, which makes it troublesome to install the foil on the coating roller and pass the foil through the fixing frame. Utility Model Content

[0005] In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides a coating machine for lithium battery production.

[0006] The technical solution of the utility model is: a coating machine for lithium battery production, including a base and a support platform, the support platform is fixedly connected to the middle of the top of the base, and also includes a coating component, a drying component and a filtering component. A coating component for double-sided coating of a foil is arranged on the left side of the top of the base, a drying component for drying the surface of the foil is arranged on the top of the support platform, and a filtering component for filtering and removing gaseous coating is arranged on the drying component.

[0007] In one of the embodiments, the coating assembly includes a mounting frame, a sliding block, a coating roller, a bidirectional screw and a motor. The mounting frame is symmetrically fixedly connected to the left side of the top of the base. Two sliding blocks are slidably connected to the two mounting frames up and down. The coating roller is rotatably connected between the two sliding blocks on the same side in the up and down directions. The bidirectional screw is rotatably connected to the mounting frame on the rear side. The motor is installed on the upper part of the mounting frame on the rear side, and the output shaft end of the motor is fixedly connected to the upper end of the bidirectional screw.

[0008] In one embodiment, the drying component includes a fixed frame, a rotating frame and an electric heating tube. The fixed frame is fixedly connected to the top of the base, and the rotating frame is rotatably connected to the rear side of the fixed frame. Multiple electric heating tubes are arranged at intervals in the fixed frame and the rotating frame.

[0009] In one embodiment, the filtering assembly includes an air collecting ring, a connecting pipe, an exhaust pipe, a hose and an air filter. The air collecting ring is fixedly connected to the outside of the rotating ring, the connecting pipe is fixedly connected to the top of the rotating frame, and a plurality of exhaust pipes are connected to the top of the air collecting ring at intervals. One end of each exhaust pipe away from the connection with the air collecting ring is connected to the lower part of the connecting pipe, a hose is connected to the top of the connecting pipe, an air filter is installed in the middle of the top of the base, and one end of the hose away from the connecting pipe is connected to the air filter.

[0010] In one of the embodiments, it also includes a buffer rod and a fixing plate. The front side of the gas collecting ring is fixedly connected to two buffer rods, and the front side of the fixing frame is fixedly connected to a fixing plate.

[0011] In one of the embodiments, it also includes a support and a limiting roller. The support is symmetrically fixedly connected to the front and back right side of the top of the base, and the limiting roller is rotatably connected between the two supports.

[0012] The beneficial effects are: 1. The motor drives the two sliding blocks to move away from each other through the bidirectional screw rod, thereby increasing the distance between the two coating rollers, making it easier for the staff to install the foil between the two coating rollers. By flipping the rotating frame upward and opening it, it is easier for the staff to continue to pull the foil to the right. At the same time, through the setting of the two coating rollers, the foil can be coated on both sides, thereby greatly improving the coating work efficiency.

[0013] 2. Through the setting of the buffer rod and the fixed plate, when the rotating frame is flipped down to reset, the buffer rod contacts the fixed plate. The setting of the buffer rod can reduce the collision and shaking between the rotating frame and the fixed frame, thereby preventing the electric heating tube from loosening during shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2It is a three-dimensional structural sectional view of the installation frame, bidirectional screw rod and sliding block of the utility model.

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the fixed frame, rotating frame and electric heating tube etc. of the utility model.

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the air filter and hose etc. of the utility model.

[0018] Markings in the figure are: 1-base, 11-support, 2-installation frame, 21-sliding block, 22-coating roller, 23-bidirectional screw, 24-motor, 31-fixed frame, 32-rotating frame, 33-electric heating tube, 41-gas collecting ring, 42-connecting pipe, 43-exhaust pipe, 44-hose, 45-air filter, 51-buffer rod, 52-fixed plate, 61-support, 62-limiting roller. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the embodiments shown in the accompanying drawings.

[0020] Embodiment: A coating machine for lithium battery production, such as Figure 1-Figure 4 As shown, it includes a base 1 and a support 11, the support 11 is fixedly connected to the middle of the top of the base 1, and also includes a coating component, a drying component and a filtering component. A coating component for double-sided coating of the foil is arranged on the left side of the top of the base 1, and a drying component for drying the surface of the foil is arranged on the top of the support 11. A filtering component for filtering and removing gaseous coating is arranged on the drying component.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, the coating assembly includes a mounting frame 2, a sliding block 21, a coating roller 22, a bidirectional screw 23 and a motor 24. The mounting frame 2 is fixedly connected symmetrically on the left side of the top of the base 1. Two sliding blocks 21 are slidably connected up and down in the two mounting frames 2. The coating roller 22 is rotatably connected between the two sliding blocks 21 located on the same side in the up and down directions. The bidirectional screw 23 is rotatably connected in the mounting frame 2 located on the rear side. A motor 24 is installed on the upper part of the mounting frame 2 located on the rear side. The output shaft end of the motor 24 is fixedly connected to the upper end of the bidirectional screw 23. The bidirectional screw 23 passes through two adjacent sliding blocks 21 respectively, and cooperates with the two sliding blocks 21 respectively through threads.

[0022] like Figure 1 and Figure 3As shown, the drying assembly includes a fixed frame 31, a rotating frame 32 and an electric heating tube 33. The fixed frame 31 is fixedly connected to the top of the base 11, and the rotating frame 32 is rotatably connected to the rear side of the fixed frame 31. Multiple electric heating tubes 33 are arranged at intervals in the fixed frame 31 and the rotating frame 32.

[0023] like Figure 1 and Figure 4 As shown, the filtering assembly includes an air collecting ring 41, a connecting pipe 42, an exhaust pipe 43, a hose 44 and an air filter 45. The air collecting ring 41 is fixedly connected to the outside of the rotating ring, the connecting pipe 42 is fixedly connected to the top of the rotating frame 32, and a plurality of exhaust pipes 43 are connected to the top of the air collecting ring 41 at intervals. One end of each exhaust pipe 43 away from the connection with the air collecting ring 41 is connected to the lower part of the connecting pipe 42, a hose 44 is connected to the top of the connecting pipe 42, and an air filter 45 is installed in the middle of the top of the base 1. The end of the hose 44 away from the connecting pipe 42 is connected to the air filter 45, and the air filter 45 is connected to the air collecting ring 41 through the hose 44, the connecting pipe 42 and the exhaust pipe 43 in sequence.

[0024] First, the staff starts the motor 24, and the motor 24 drives the bidirectional lead screw 23 to rotate, thereby driving the two sliding blocks 21 to move away from each other through the threaded cooperation of the bidirectional lead screw 23 and the sliding block 21, thereby making the two coating rollers 22 move away from each other. At this time, the interval between the two coating rollers 22 increases, and the staff can easily pass the foil through between the two coating rollers 22, and then reverse the motor 24, so that the two coating rollers 22 move back to the direction of approaching each other and contact the upper and lower surfaces of the foil at the same time. The staff then flips the rotating frame 32 upward to open it, and at this time, the foil can be easily pulled to the right, and finally the foil collecting frame 32 is connected to the external foil collecting frame 32. After the foil is installed, the rotating frame 32 is flipped downward and reset, the electric heating tube 33, the air filter 45 and the external winding device are started, and the two coating rollers 22 respectively coat the two sides of the foil, thereby greatly shortening the coating time, and the electric heating tube 33 dries the surface of the foil passing through the fixed frame 31 and the rotating frame 32. The gaseous coating generated by the drying overflows from the four sides of the rotating frame 32 and is collected in the air collecting ring 41. At this time, the air filter 45 absorbs and filters the gaseous coating in the air collecting ring 41 through the hose 44, the connecting pipe 42 and the exhaust pipe 43, thereby preventing these gaseous coatings from affecting the health of the staff.

[0025] like Figure 1 and Figure 3 As shown, it also includes a buffer rod 51 and a fixing plate 52 . Two buffer rods 51 are welded and fixed to the front side of the gas collecting ring 41 , and a fixing plate 52 is welded and fixed to the front side of the fixing frame 31 .

[0026] By setting the buffer rod 51 and the fixed plate 52, when the rotating frame 32 is flipped downward to reset, the buffer rod 51 contacts the fixed plate 52. The setting of the buffer rod 51 can reduce the collision and shaking between the rotating frame 32 and the fixed frame 31, thereby preventing the electric heating tube 33 from loosening during shaking.

[0027] like Figure 3 As shown, it also includes a support 61 and a limiting roller 62. The support 61 is symmetrically welded and fixed to the right side of the top of the base 1, and the limiting roller 62 is rotatably connected between the two supports 61.

[0028] By setting the support 61 and the limiting roller 62, the limiting roller 62 limits the foil to a position at a height between the fixed frame 31 and the rotating frame 32 to prevent the angle of the foil from changing due to too many winding circles, which ultimately causes the foil to scratch the air collecting ring 41.

[0029] The above description is only an example of the implementation of the present invention and is not intended to limit the present invention. Any equivalent replacement made within the principle of the present invention shall be included in the protection scope of the present invention. The contents not elaborated in the present invention belong to the existing technology known to the technicians in this professional field.

Claims

1. A coating machine for lithium battery production, comprising a base (1) and a support platform (11), wherein the support platform (11) is fixedly connected to the middle of the top of the base (1), characterized in that: It also includes a coating component, a drying component and a filtering component. A coating component for double-sided coating of the foil is arranged on the left side of the top of the base (1), a drying component for drying the surface of the foil is arranged on the top of the support platform (11), and a filtering component for filtering and removing gaseous coating is arranged on the drying component.

2. A coating machine for lithium battery production as claimed in claim 1, characterized in that: The coating assembly comprises a mounting frame (2), a sliding block (21), a coating roller (22), a bidirectional screw rod (23) and a motor (24); the mounting frame (2) is symmetrically fixedly connected to the left side of the top of the base (1) in a front-to-back manner; two sliding blocks (21) are slidably connected to the two mounting frames (2) in an up-and-down manner; the coating roller (22) is rotatably connected between the two sliding blocks (21) located on the same side in the up-and-down direction; the bidirectional screw rod (23) is rotatably connected to the mounting frame (2) located on the rear side; the motor (24) is installed on the upper part of the mounting frame (2) located on the rear side; and the end of the output shaft of the motor (24) is fixedly connected to the upper end of the bidirectional screw rod (23).

3. A coating machine for lithium battery production as claimed in claim 2, characterized in that: The drying component comprises a fixed frame (31), a rotating frame (32) and an electric heating pipe (33); the top of the support platform (11) is fixedly connected to the fixed frame (31); the rear side of the fixed frame (31) is rotatably connected to the rotating frame (32); and a plurality of electric heating pipes (33) are arranged in intervals in the fixed frame (31) and the rotating frame (32).

4. A coating machine for lithium battery production as claimed in claim 3, characterized in that: The filter assembly comprises an air collecting ring (41), a connecting pipe (42), an air extraction pipe (43), a hose (44) and an air filter (45); the air collecting ring (41) is fixedly connected to the outer side of the rotating ring; the connecting pipe (42) is fixedly connected to the top of the rotating frame (32); a plurality of air extraction pipes (43) are connected to the top of the air collecting ring (41) in an interval manner; one end of each air extraction pipe (43) away from the connection with the air collecting ring (41) is connected to the lower part of the connecting pipe (42); the top of the connecting pipe (42) is connected to a hose (44); an air filter (45) is installed in the middle of the top of the base (1); one end of the hose (44) away from the connecting pipe (42) is connected to the air filter (45).

5. A coating machine for lithium battery production as claimed in claim 4, characterized in that: It also includes a buffer rod (51) and a fixing plate (52). The front side of the gas collecting ring (41) is fixedly connected to the two buffer rods (51), and the front side of the fixing frame (31) is fixedly connected to the fixing plate (52).

6. A coating machine for lithium battery production as claimed in claim 5, characterized in that: It also includes a support (61) and a limiting roller (62); the support (61) is symmetrically fixedly connected to the right side of the top of the base (1) in the front and rear directions; and the limiting roller (62) is rotatably connected between the two supports (61).

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