CN220461222U

CN220461222U - Coating device

Info

Publication number: CN220461222U
Application number: CN202321831433.2U
Authority: CN
Inventors: 夏信德; 张景国; 刘昌�; 刘登俊; 周绪晶; 朱利勇; 袁立
Original assignee: Penghui Energy Changzhou Power Lithium Co ltd
Current assignee: Penghui Energy Changzhou Power Lithium Co ltd
Priority date: 2023-07-12
Filing date: 2023-07-12
Publication date: 2024-02-09
Anticipated expiration: 2033-07-12

Abstract

The utility model provides a coating device, which relates to the technical field of lithium battery production, and comprises a workbench main body and a drying box arranged on the workbench main body; a first adjusting gear is arranged on the adjusting shaft; the first adjusting gear is connected with the driving assembly, and the driving assembly enables the adjusting plate to rotate by enabling the first adjusting gear to rotate so as to adjust the wind directions of the air outlets of the hot air fans. The regulating plate in the drying box of the coating device is provided with the plurality of hot fans, and the regulating plate can be inclined through the driving component; the number of the hot air fans on the adjusting plate can be changed according to actual conditions, so that the sizing agent coated on the pole piece can be dried in time, and the drying effect is ensured; and through adjusting the angle of regulating plate, change the wind direction of hot-blast fan-out, make hot-blast have suitable angle to blow to the pole piece, when guaranteeing the effect of pole piece stoving like this, reduced the waste of the energy.

Description

Coating device

Technical Field

The utility model relates to the technical field of lithium battery production, in particular to a coating device.

Background

The lithium battery is a battery using a nonaqueous electrolyte solution and using lithium metal or a lithium alloy as an anode material, and is different from the lithium ion battery in that the former is a primary battery and the latter is a rechargeable battery. The lithium battery has long-term no application because the lithium metal has very active chemical characteristics, so that the lithium metal is processed, stored and used, the environment requirement is very high, the anode and the cathode of the lithium battery are required to be uniformly coated on the current collector by uniformly stirring slurry in the production process, and the organic solvent in the slurry is dried, so that the coating effect has important influence on the battery capacity, the internal resistance, the cycle life and the safety, and the uniform coating of the pole piece is ensured. The choice of the coating mode and the control parameters have important influence on the performance of the lithium ion battery.

The existing lithium battery coating technology is very mature, the pole piece is generally unreeled and then is coated with slurry, the coated pole piece is dried after being treated, and finally is rolled, the existing drying mode is that the pole piece is dried through a nozzle after hot air is directly generated through a hot air blower, and the mode is simple and direct, but has the following problems:

1. in order to ensure the drying effect, the output power of the air heater is constant, so that the wind power from the nozzle is large, the slurry of the pole piece is easy to blow off or gather after being coated, and the spraying effect of the pole piece is not very good;

2. the optimal drying time is uncertain due to the external environment, the type of sizing agent and the width of the pole piece, but the existing drying mode cannot adapt to the adjustment;

3. the existing drying structure is of an open type, and the dried gas is directly discharged into the air and cannot be discharged in a concentrated manner.

Therefore, there is a need for improvements to existing coating devices for lithium battery production.

Disclosure of Invention

The utility model aims to provide a coating device so as to solve the technical problem of poor coating and drying effects in the prior art.

The utility model provides a coating device, which comprises a workbench main body and a drying box arranged on the workbench main body;

the coated pole piece is arranged in the drying box in a penetrating way along a first direction, the upper end of the drying box is provided with a wind collecting cover, and an exhaust pipe is arranged on the wind collecting cover;

an adjusting plate is arranged in the drying box, and a plurality of hot fans are arranged on the adjusting plate at intervals along the first direction;

an adjusting shaft is arranged at the lower end of the adjusting plate, and the adjusting plate is arranged on the adjusting shaft; a first adjusting gear is arranged on the adjusting shaft;

the first adjusting gear is connected with the driving assembly, and the driving assembly enables the adjusting plate to rotate by enabling the first adjusting gear to rotate so as to adjust the wind directions of the air outlets of the hot air fans.

In an alternative embodiment, a fixing groove is formed in the adjusting plate, and the hot air fan is assembled in the fixing groove;

an assembly groove is formed in one side of the fixing groove, and a clamping plate is arranged in the assembly groove; the clamping plate extends into the fixing groove, and a fixing spring is arranged on the clamping plate, so that the clamping plate has a tendency of moving into the fixing groove;

the clamping plate is used for fixing the hot air fan in the fixing groove.

In an alternative embodiment, the drive assembly includes a first drive motor and a first drive gear, the first drive gear is disposed on a drive shaft of the first drive motor, and the first drive gear is meshed with the first adjustment gear.

In an alternative embodiment, the upper end of the workbench main body is provided with a coating roller, a regulating roller and a steering roller;

a coating gap is formed between the coating roller and the regulating roller, and the steering roller is arranged at the upper end of the regulating roller; after passing through the coating gap, the pole piece is turned by the turning roller.

In an alternative embodiment, a feed box is arranged on the workbench main body; the coating roller is positioned at the upper end of the feed box and extends into the feed box; and the materials falling from the coating roller fall into the material box.

In an alternative embodiment, a scraper is arranged on one side of the coating roller, and the scraper is abutted with the coating roller;

the workbench is characterized in that a liquid storage tank is arranged in the workbench main body, a liquid pump is arranged in the liquid storage tank, and the liquid pump is connected with the material box through a fixed pipe.

In an alternative embodiment, a first sliding rail is arranged on the workbench main body, a movable bracket is arranged on the first sliding rail in a sliding manner, and the regulating roller is arranged on the movable bracket.

In an alternative embodiment, a telescopic assembly is arranged on the workbench main body, one end of the telescopic assembly is connected with the movable support, and the telescopic assembly is used for adjusting the distance between the adjusting roller and the coating roller.

In an alternative embodiment, a sealing plate is provided on the table body, and a sealing door is provided on the sealing plate.

In an alternative embodiment, six hot air fans are arranged on the adjusting plate, and two hot air fans are arranged at equal intervals.

The regulating plate in the drying box of the coating device is provided with the plurality of hot fans, and the regulating plate can be inclined through the driving component; the number of the hot air fans on the adjusting plate can be changed according to actual conditions, so that the sizing agent coated on the pole piece can be dried in time, and the drying effect is ensured; and through adjusting the angle of regulating plate, change the wind direction of hot-blast fan-out, make hot-blast have suitable angle to blow to the pole piece, when guaranteeing the effect of pole piece stoving like this, reduced the waste of the energy.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a coating device according to an embodiment of the present utility model;

fig. 2 is a schematic view showing an internal structure of a drying box of the coating apparatus shown in fig. 1;

fig. 3 is a partial enlarged view of a schematic view of an inner structure of the drying box shown in fig. 2;

FIG. 4 is a schematic view of the structure of a regulating roller of the coating apparatus shown in FIG. 1;

FIG. 5 is a schematic view of the driving assembly of the coating device shown in FIG. 1 connected to a first adjusting gear;

fig. 6 is a schematic view showing an internal structure of a stage main body of the coating apparatus shown in fig. 1.

Icon: 100-a workbench main body; 200-a drying box; 300-wind collecting hood; 400-pole piece; 500-exhaust pipes; 600-turning rolls; 700-adjusting rollers; 800-coating roller; 900-moving the support; 110-telescoping assembly; 120-scraping knife; 130-adjusting plate; 140-a first adjusting gear; 150-a drive assembly; 160-a hot fan; 170-a fixed groove; 180-fitting grooves; 190-clamping plates; 210-a fixed spring; 220-a first drive gear; 230-a first drive motor; 240-bin; 250-a liquid storage tank; 260-fixing the tube; 270-liquid pump.

Detailed Description

The terms "first," "second," "third," and the like are used merely for distinguishing between descriptions and not for indicating a sequence number, nor are they to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should be noted that, directions or positional relationships indicated by terms such as "inner", "outer", "left", "right", "upper", "lower", etc. are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use for the product of the application, are merely for convenience of description and simplification of the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and therefore should not be construed as limiting the present application.

In the description of the present application, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements.

The technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings.

Examples

Referring to fig. 1 to 6, the present utility model provides a coating apparatus including a table body 100 and a drying box 200 provided on the table body 100;

the coated pole piece 400 is arranged in the drying box 200 in a penetrating manner along a first direction, the upper end of the drying box 200 is provided with a wind collecting cover 300, and the wind collecting cover 300 is provided with an exhaust pipe 500;

an adjusting plate 130 is disposed in the drying box 200, and a plurality of heat fans 160 are disposed on the adjusting plate 130 at intervals along the first direction;

an adjusting shaft is arranged at the lower end of the adjusting plate 130, and the adjusting plate 130 is arranged on the adjusting shaft; a first adjusting gear 140 is provided on the adjusting shaft;

the first adjusting gear 140 is connected to the driving unit 150, and the driving unit 150 rotates the adjusting plate 130 by rotating the first adjusting gear 140, thereby adjusting the wind directions of the air-out of the plurality of hot air fans 160.

In some embodiments, the table body 100 is provided with a drying box 200, and the coated pole piece 400 enters the drying box 200, and the drying box 200 dries the slurry on the pole piece 400.

Because the difference between the temperature in summer and the temperature in winter is large, in order to ensure that the energy waste is reduced under the condition that the polar plate 400 can be dried, the number of the hot air fans 160 on the regulating plate 130 can be opened or closed according to actual conditions, and then the energy is saved on the premise of ensuring good drying effect.

The driving assembly 150 can rotate the first adjusting gear 140, the adjusting plate 130 is provided with an adjusting shaft, the first adjusting gear 140 rotates to enable the adjusting shaft to rotate, so that the adjusting plate 130 rotates along with the adjusting shaft, and an included angle is formed between the upper surface of the adjusting plate 130 and the horizontal plane; thus, the wind direction of the air outlet of the hot air fan 160 is adjusted, so that the hot air is not directly blown to the pole piece 400, and forms a certain angle with the pole piece 400, and the hot air is not easy to blow off the sizing agent on the pole lugs or gather the sizing agent.

The drying box 200 is provided with a plurality of ventilation holes, and hot air in the drying box 200 enters the air collecting cover 300 through the ventilation holes and enters the exhaust duct 500 after passing through the air collecting cover 300, thus completing the exhaust of air in the drying box 200.

Referring to fig. 3, in an alternative embodiment, the adjusting plate 130 is provided with a fixing groove 170, and the hot air fan 160 is fitted in the fixing groove 170;

an assembly groove 180 is provided at one side of the fixing groove 170, and a clamping plate 190 is provided in the assembly groove 180; the clamping plate 190 extends into the fixing groove 170, and a fixing spring 210 is arranged on the clamping plate 190, and the fixing spring 210 enables the clamping plate 190 to have a trend of moving into the fixing groove 170;

the clamping plate 190 is used for fixing the hot air fan 160 in the fixing groove 170.

In order to conveniently adjust the number of the hot air fans 160 on the adjusting plate 130, a plurality of fixing grooves 170 are provided on the adjusting plate 130, the fixing grooves 170 being used for installing the hot air fans 160; an assembly groove 180 is provided at one side of the fixing groove 170, and a clamping plate 190 is provided in the assembly groove 180 and can be inserted into the fixing groove 170 to be connected with the hot air fan 160, thereby clamping the hot air fan 160 in the fixing groove 170.

One end of the general hot fan 160 is clamped at one end of the fixing groove 170, and the other end is limited by the clamping plate 190, so that the hot fan 160 is fixed in the fixing groove 170; the fixing slot 170 is also provided with a threading hole, so that the connecting wire of the thermal fan 160 is conveniently connected with a power supply.

In order to keep the clamping plate 190 clamping the hot air fan 160, a fixed spring 210 is arranged on the clamping plate 190, and the fixed spring 210 is used for processing the stretching state, so that the clamping plate 190 always has a trend of moving towards the hot air fan 160; to further secure the fixing of the heat fan 160, the chucking plate 190 may be further fixed with screws.

Referring to fig. 2 and 5, in an alternative embodiment, the driving assembly 150 includes a first driving motor 230 and a first driving gear 220, the first driving gear 220 is disposed on a driving shaft of the first driving motor 230, and the first driving gear 220 is engaged with the first adjusting gear 140.

In some embodiments, the drive shaft of the first drive motor 230 of the drive assembly 150 has a first drive gear 220 thereon, the first drive gear 220 being in mesh with the first adjustment gear 140; thus, the first driving motor 230 rotates the first driving gear 220, and further rotates the first adjusting gear 140, so that the inclination angle of the upper surface of the adjusting plate 130 is changed, and the wind direction of the air outlet of the hot air fan 160 is adjusted.

Referring to fig. 1, in an alternative embodiment, an upper end of the table body 100 is provided with a coating roller 800, a conditioning roller 700, and a steering roller 600;

a coating gap is formed between the coating roller 800 and the regulating roller 700, and the steering roller 600 is disposed at the upper end of the regulating roller 700; after passing through the coating gap, the pole piece 400 is turned by the turning roll 600.

In an alternative embodiment, the table body 100 is provided with a bin 240; the applicator roll 800 is located at the upper end of the bin 240 and extends into the bin 240; the material falling from the coating roller 800 falls into the bin 240.

In an alternative embodiment, a doctor blade 120 is disposed on one side of the coating roller 800, and the doctor blade 120 abuts against the coating roller 800;

a liquid tank 250 is provided in the table main body 100, a liquid pump 270 is provided in the liquid tank 250, and the liquid pump 270 is connected to the tank 240 through a fixed pipe 260.

Referring to fig. 4, in an alternative embodiment, the table body 100 is provided with a first sliding rail on which a moving bracket 900 is slidably disposed, and the adjustment roller 700 is disposed on the moving bracket 900.

In an alternative embodiment, a telescopic assembly 110 is disposed on the table body 100, one end of the telescopic assembly 110 is connected to the moving bracket 900, and the telescopic assembly 110 is used for adjusting the distance between the adjusting roller 700 and the coating roller 800.

In an alternative embodiment, a sealing plate is provided on the table body 100, and a sealing door is provided on the sealing plate.

In an alternative embodiment, six hot air fans 160 are disposed on the adjusting plate 130, and two hot air fans 160 are equidistantly arranged.

In some embodiments, the workbench main body 100 is provided with a coating roller 800, a regulating roller 700 and a turning roller 600, and the pole piece 400 is inserted into a coating gap between the coating roller 800 and the regulating roller 700 after passing through the turning roller 600, so that coating of the pole piece 400 is completed; in order to provide a proper coating gap between the coating roller 800 and the conditioning roller 700, the conditioning roller 700 is disposed on the moving bracket 900; two first slide rails are generally provided on the table main body 100, and the moving bracket 900 can move along the first slide rails, so that the adjustment roller 700 can precisely move toward or away from the coating roller 800.

The telescopic assembly 110 can be an air cylinder or a hydraulic cylinder, and the telescopic assembly 110 enables the movable bracket 900 to move along the first sliding rail, so that the distance between the adjusting roller 700 and the coating roller 800 is adjusted, and the coating gap is adapted to the coating of the pole pieces 400 with different thicknesses.

A telescopic plate is arranged between the movable bracket 900 and the drying box 200, one end of the telescopic plate is connected with the movable bracket 900, and the other end extends into the drying box 200; when the slurry on the pole piece 400 falls, the slurry directly falls onto the expansion plate, and the slurry collecting effect is achieved.

The moving bracket 900 is further provided with a driving motor for driving the regulating roller 700 to rotate; a sealing plate is provided on the table main body 100, and the sealing plate encloses the table main body 100 into a box; a sealing door is provided on the sealing plate, so that the operation in the table main body 100 through the sealing plate is facilitated.

The adjusting plate 130 in the drying box 200 of the coating device provided by the utility model is provided with a plurality of hot fans 160, and the adjusting plate 130 can be inclined through the driving component 150; the number of the hot air fans 160 on the adjusting plate 130 can be changed according to actual conditions, so that the slurry coated on the pole piece 400 can be dried in time, and the drying effect is ensured; and through adjusting the angle of the adjusting plate 130, the wind direction of the air outlet of the hot air fan 160 is changed, so that hot air is blown to the pole piece 400 at a proper angle, and the energy waste is reduced while the drying effect of the pole piece 400 is ensured.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. A coating device, which is characterized by comprising a workbench main body (100) and a drying box (200) arranged on the workbench main body (100);

the coated pole piece (400) is arranged in the drying box (200) in a penetrating manner along a first direction, the upper end of the drying box (200) is provided with a wind collecting cover (300), and the wind collecting cover (300) is provided with an exhaust pipe (500);

an adjusting plate (130) is arranged in the drying box (200), and a plurality of hot fans (160) are arranged on the adjusting plate (130) at intervals along the first direction;

an adjusting shaft is arranged at the lower end of the adjusting plate (130), and the adjusting plate (130) is arranged on the adjusting shaft; a first adjusting gear (140) is arranged on the adjusting shaft;

the first adjusting gear (140) is connected with the driving assembly (150), and the driving assembly (150) enables the adjusting plate (130) to rotate by enabling the first adjusting gear (140) to rotate, so that the wind directions of the air outlets of the plurality of hot air fans (160) are adjusted.

2. The coating device according to claim 1, wherein a fixing groove (170) is provided on the adjusting plate (130), and the hot air fan (160) is fitted in the fixing groove (170);

an assembly groove (180) is formed in one side of the fixing groove (170), and a clamping plate (190) is arranged in the assembly groove (180); the clamping plate (190) extends into the fixing groove (170), and a fixing spring (210) is arranged on the clamping plate (190), and the fixing spring (210) enables the clamping plate (190) to have a trend of moving into the fixing groove (170);

the clamping plate (190) is used for fixing the hot fan (160) in the fixing groove (170).

3. The coating device according to claim 2, wherein the drive assembly (150) comprises a first drive motor (230) and a first drive gear (220), the first drive gear (220) being arranged on a drive shaft of the first drive motor (230), and the first drive gear (220) being in engagement with the first adjustment gear (140).

4. The coating device according to claim 1, wherein the upper end of the table main body (100) is provided with a coating roller (800), a regulating roller (700) and a steering roller (600);

a coating gap is formed between the coating roller (800) and the regulating roller (700), and the steering roller (600) is arranged at the upper end of the regulating roller (700); after passing through the coating gap, the pole piece (400) is turned by the turning roll (600).

5. Coating device according to claim 4, characterized in that the work bench body (100) is provided with a magazine (240); the coating roller (800) is positioned at the upper end of the feed box (240) and extends into the feed box (240); the material falling from the coating roller (800) falls into the material box (240).

6. Coating device according to claim 5, characterized in that one side of the coating roll (800) is provided with a doctor blade (120), which doctor blade (120) is in abutment with the coating roll (800);

a liquid storage tank (250) is arranged in the workbench main body (100), a liquid pump (270) is arranged in the liquid storage tank (250), and the liquid pump (270) is connected with the material box (240) through a fixed pipe (260).

7. The coating device according to claim 6, wherein a first slide rail is provided on the table main body (100), a moving bracket (900) is slidably provided on the first slide rail, and the regulating roller (700) is provided on the moving bracket (900).

8. The coating device according to claim 7, wherein a telescopic assembly (110) is provided on the table main body (100), one end of the telescopic assembly (110) is connected with the moving bracket (900), and the telescopic assembly (110) is used for adjusting the distance between the adjusting roller (700) and the coating roller (800).

9. Coating device according to any one of claims 1-8, characterized in that a sealing plate is provided on the table body (100) and a sealing door is provided on the sealing plate.

10. The coating device according to any one of claims 1-8, wherein six hot air fans (160) are provided on the adjusting plate (130), and two hot air fans (160) are arranged equidistantly.