Lithium battery material double-sided coating machine

Abstract

The utility model belongs to the technical field of lithium battery material coating, and discloses a lithium battery material double-sided coating machine, which comprises a liquid storage part for storing coating liquid, a liquid spraying part and a drying part, a lithium battery material capable of moving along a specific direction is arranged above the liquid storage part, the liquid spraying part is used for uniformly spraying the coating liquid onto the lithium battery material, and the drying part is used for drying the lithium battery material. Comprising a liquid conveying part and a first annular frame, a plurality of liquid spraying heads are arranged on the inner wall of the first annular frame to achieve annular spraying, the liquid conveying part is used for conveying coating liquid in a liquid storage part to the first annular frame, and a drying part is used for drying the coating liquid on a lithium battery material; the coating liquid in the liquid storage part is extracted through the liquid conveying part and conveyed into the first annular frame, the coating liquid is sprayed to the lithium battery material through the liquid spraying head on the first annular frame, the device can continuously spray the coating liquid to the lithium battery material, continuous operation can be formed, the operation difficulty of the device is reduced, and the operation efficiency of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium battery material coating, and in particular relates to a double-sided coating machine for lithium battery materials. Background Art

[0002] In the production process of lithium batteries, coating technology plays a vital role. The performance of the coating machine directly affects the quality, production efficiency and cost of lithium batteries. Traditional coating machines usually adopt a single-sided coating method, that is, coating one side of the lithium battery material first, drying it, and then coating the other side. This production method is not only inefficient, but also difficult to ensure the uniformity and consistency of the coating on both sides due to the changes in the tension and position of the material during the two coating processes, thus affecting the performance of the lithium battery.

[0003] With the continuous expansion of the lithium battery market and the widening of its application fields, the requirements for lithium battery performance and production efficiency are becoming higher and higher. Therefore, a device that can achieve double-sided coating at the same time has emerged. For example, in the Chinese patent with the publication number "CN213996501 U", a double-sided coating machine for lithium battery materials is disclosed. When using the device, first check the tightness of the connection between the various components of the device, then place the device on a horizontal dry ground, and put the lithium battery raw materials to be coated into the battery raw material bin through the injection port, and then turn on the motor through the power switch. The motor discharges through the main wire and the raw material bin wire, so that the power is transmitted to the battery raw material bin, the automatic brush and the battery processing bin, so that the whole machine starts to work. The raw material pusher enables the pushing platform to push the lithium battery raw materials into the battery conveying bin, and then the battery is conveyed to the conveyor belt through the conveying port. The conveyor belt The battery is then transferred to the lifter, and the battery will be lifted to the middle of the battery caliper and fixed. The mobile brush head will paint one side of the battery. After one side is painted, the caliper rotator will rotate the battery caliper to paint the other side. The transverse groove can make the battery paint more evenly. After painting, it will be sent to the battery finished product warehouse, and finally the finished battery will be taken out through the discharge port. Although the device can achieve double-sided coating, when the device coats the material, the material is clamped and rotated before coating. Therefore, only a single material can be coated at a time, and continuous operation cannot be formed, which increases the difficulty of device operation and reduces the device operation efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a double-sided coating machine for lithium battery materials to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-sided coating machine for lithium battery materials, comprising a liquid storage part for storing a coating liquid, a lithium battery material moving along a preset direction is arranged above the liquid storage part, and a spray part for spraying the coating liquid onto the lithium battery material and a drying part for drying the coating liquid on the lithium battery material are arranged one by one above the liquid storage part along the moving direction of the lithium battery material, and the spray part comprises an infusion part and a first annular frame, the inner wall of the first annular frame is in an annular array and a plurality of spray heads are fixedly connected, an infusion channel for conveying the coating liquid along a preset path is formed on the infusion part, the liquid inlet end of the infusion channel is connected to the interior of the liquid storage part, and the liquid outlet end of the infusion channel is connected to the interior of the first annular frame.

[0006] Preferably, the infusion component comprises a pressure pump, and a liquid inlet end and a liquid outlet end of the pressure pump are fixedly connected to a liquid inlet tube and a liquid infusion tube respectively.

[0007] Preferably, the drying element includes a pressurized air pump, the air inlet end and the air outlet end of the pressurized air pump are respectively connected to the air inlet pipe and the air supply pipe, the air outlet end of the air supply pipe is fixedly connected to a second annular frame, the inner wall of the second annular frame is fixedly connected to a plurality of nozzles in an annular array, and an electric heating wire is arranged inside the second annular frame.

[0008] Preferably, a scraping member for scraping the outer peripheral surface of the lithium battery material is provided between the first annular frame and the second annular frame.

[0009] Preferably, the scraper comprises an annular guide frame, the outer circumference of which is sunken to form a guide groove, and a movable frame is slidably connected to the outer circumference of the annular guide frame, and a scraping part for scraping lithium battery materials is fixedly connected to one side of the movable frame.

[0010] Preferably, a driving wheel is rotatably connected inside the movable frame, the outer peripheral surface of the driving wheel is inside the guide groove and contacts the inner wall of the guide groove, and a motor is fixedly connected to the movable frame, and the output end of the motor is connected to the driving wheel.

[0011] Preferably, the scraping part comprises a side plate, a scraper is installed inside the side plate, a moving plate is fixedly connected to the top of the scraper, and a spring is fixedly connected between the bottom of the moving plate and the side plate.

[0012] Preferably, the liquid storage component comprises a liquid storage shell, the top of the liquid storage shell is open to form a liquid storage cavity, the first annular frame and the second annular frame are both fixedly connected to the top of the liquid storage shell, and the bottom of the liquid storage shell is fixedly connected to a bottom rod.

[0013] Preferably, a bracket is fixedly connected to the top of the liquid storage shell, the bracket is located between the first annular frame and the second annular frame, and a side frame is fixedly connected to one side of the bracket, and the free side of the side frame is fixedly connected to the inner wall of the annular guide frame.

[0014] Preferably, the bottom end of the liquid storage chamber is inclined upward from one side close to the pressure pump to the other side to form a slope.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] (1) The utility model provides an infusion piece and a first annular frame. When the lithium battery material passes through the first annular frame, the coating liquid in the liquid storage piece is extracted by the infusion piece and transported to the first annular frame. The coating liquid is sprayed onto the lithium battery material by the spray head on the first annular frame. The device can continuously spray the coating liquid onto the lithium battery material, thereby forming a continuous operation, reducing the difficulty of device operation and improving the device operation efficiency.

[0017] (2) On the basis of the above-mentioned beneficial effects, after the coating liquid is sprayed onto the lithium battery material, the utility model moves along the annular guide frame through the movable frame, and then the scraper rotates to scrape the coating liquid on the lithium battery material, so that the coating liquid on the lithium battery material is more evenly coated.

[0018] (3) On the basis of the above-mentioned beneficial effects, the utility model sets a movable plate and a spring. When the scraper contacts the lithium battery material, the spring pulls the movable plate and the scraper to move, so that the scraper automatically contacts the periphery of the lithium battery material, so that the device can coat lithium battery materials of different specifications, further improving the use range of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is one of the three-dimensional diagrams of the utility model;

[0020] Figure 2 This is the second stereogram of the utility model;

[0021] Figure 3 This is the third stereogram of the utility model;

[0022] Figure 4 It is a top view of the utility model;

[0023] Figure 5 This is one of the three-dimensional diagrams of the utility model when the bracket is connected to the scraper;

[0024] Figure 6 This is the second stereoscopic view of the utility model when the bracket is connected to the scraper;

[0025] Figure 7 It is a side view of the scraping member of the utility model;

[0026] Figure 8 This is the internal structure diagram of the liquid storage component of the utility model;

[0027] In the figure: 1, bottom rod; 2, pressure pump; 3, liquid storage shell; 4, liquid spray head; 5, first annular frame; 6, scraper; 61, scraper; 62, side plate; 63, annular guide frame; 64, moving plate; 65, driving wheel; 66, moving frame; 67, motor; 68, spring; 69, guide groove; 7, bracket; 8, side frame; 9, spray head; 10, second annular frame; 11, air pipe; 12, liquid pipe; 13, air inlet pipe; 14, pressure air pump; 15, liquid inlet pipe; 16, liquid storage chamber; 17, slope. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0029] See also Figure 1-Figure 8 As shown, the utility model provides the following technical solutions: a double-sided coating machine for lithium battery materials, comprising a liquid storage part for storing a coating liquid, a lithium battery material moving along a preset direction is arranged above the liquid storage part, and a spray part for spraying the coating liquid onto the lithium battery material and a drying part for drying the coating liquid on the lithium battery material are arranged one by one above the liquid storage part along the moving direction of the lithium battery material, and the spray part comprises an infusion part and a first annular frame 5, the inner wall of the first annular frame 5 is in an annular array and fixedly connected with a plurality of spray heads 4, an infusion channel for conveying the coating liquid along a preset path is formed on the infusion part, the liquid inlet end of the infusion channel is connected to the interior of the liquid storage part, and the liquid outlet end of the infusion channel is connected to the interior of the first annular frame 5.

[0030] Through the above technical scheme, when personnel need to coat lithium battery materials, the coating liquid is added to the liquid storage part. After the coating liquid is added, the lithium battery material is transported above the liquid storage part through a conveying device (not shown in the figure). When the lithium battery material moves, the infusion part works, so that the infusion part extracts the coating liquid inside the liquid storage part, and transports the coating liquid through the liquid outlet end of the infusion part, so that the coating liquid is transported to the inside of the first annular frame 5. When the lithium battery material passes through the first annular frame 5, the coating liquid is sprayed onto the lithium battery material through the spray head 4 on the first annular frame 5, so that the coating liquid is evenly distributed on the lithium battery material. After the lithium battery material is sprayed with the coating liquid, the lithium battery material sprayed with the coating liquid is dried by the drying part. The lithium battery material continues to move, and the lithium battery material is continuously coated, forming a flow operation.

[0031] Specifically, in one embodiment, regarding the above-mentioned infusion device:

[0032] like Figure 1-Figure 4 As shown, the infusion component includes a pressure pump 2, and the liquid inlet end and the liquid outlet end of the pressure pump 2 are fixedly connected to a liquid inlet tube 15 and a liquid infusion tube 12 respectively.

[0033] In this embodiment, when it is necessary to extract the coating liquid, the pressure pump 2 is operated, so that the liquid inlet pipe 15 on the pressure pump 2 extracts the coating liquid inside the liquid storage component, and transports the coating liquid through the infusion pipe 12 - the coating liquid is transported to the inside of the first annular frame 5, and then the coating liquid is sprayed onto the lithium battery material through the spray head 4 on the first annular frame 5.

[0034] In addition, in the present invention, regarding the above-mentioned drying element:

[0035] like Figure 1-Figure 4 As shown, the drying element includes a pressurized air pump 14, the air inlet end and the air outlet end of the pressurized air pump 14 are respectively connected to the air inlet pipe 13 and the air supply pipe 11, the air outlet end of the air supply pipe 11 is fixedly connected to the second annular frame 10, the inner wall of the second annular frame 10 is fixedly connected to multiple nozzles 9 in an annular array, and an electric heating wire is arranged inside the second annular frame 10.

[0036] In this embodiment, after the coating liquid is sprayed on the surface of the lithium battery material, the pressurized air pump 14 is operated to draw external gas through the air inlet pipe 13, and the gas is ejected through the air delivery pipe 11, so that the gas is transported to the inside of the second annular frame 10, and the gas is heated by the electric heating wire, and a hot air flow is ejected through the nozzle 9, thereby drying the coating liquid on the lithium battery material.

[0037] In the present invention, after the device sprays the coating liquid onto the lithium battery material, in order to make the coating liquid more uniform, such as Figure 1-Figure 2 , Figure 4 , Figure 5-Figure 7 As shown, a scraping member 6 for scraping the outer peripheral surface of the lithium battery material is arranged between the first annular frame 5 and the second annular frame 10 .

[0038] In this embodiment, when the coating liquid is sprayed onto the lithium battery material and passes through the scraping member 6, the coating liquid on the lithium battery material is scraped by the scraping member 6, so that the coating liquid on the lithium battery material is more uniform after spraying.

[0039] In addition, in the present invention, regarding the scraping member 6:

[0040] like Figure 1-Figure 2 , Figure 4-Figure 7 As shown, the scraper 6 includes an annular guide frame 63, the outer circumference of which is sunken to form a guide groove 69, and a movable frame 66 is slidably connected to the outer circumference of the annular guide frame 63, and a scraping part for scraping lithium battery materials is fixedly connected to one side of the movable frame 66.

[0041] In this embodiment, after the lithium battery material is sprayed with the coating liquid, the lithium battery material moves along the horizontal plane inside the annular guide frame 63, and moves along the annular guide frame 63 through the movable frame 66, and then the movable frame 66 drives the scraping part to move, and the scraping part scrapes the surface of the lithium battery material, so that the coating liquid is sprayed more evenly.

[0042] How the moving frame 66 moves on the annular guide frame 63 is as follows: Figure 1-Figure 2 , Figure 5-Figure 7 As shown, the movable frame 66 is internally rotatably connected to a driving wheel 65 , the outer circumference of which is located inside the guide groove 69 and contacts the inner wall of the guide groove 69 , and the movable frame 66 is fixedly connected to a motor 67 , the output end of which is connected to the driving wheel 65 .

[0043] In this embodiment, when it is necessary to drive the movable frame 66 to move on the annular guide frame 63, the motor 67 is operated to drive the driving wheel 65 to rotate on the movable frame 66, and then the movable frame 66 moves along the guide groove 69 on the annular guide frame 63, so that the scraping part rotates to scrape the lithium battery material, so that the coating liquid on the lithium battery material is coated more evenly.

[0044] In addition, in the present invention, regarding the above-mentioned scraping part:

[0045] like Figure 5-Figure 7 As shown, the scraping part includes a side plate 62 , a scraper plate 61 is installed inside the side plate 62 , a moving plate 64 is fixedly connected to the top of the scraper plate 61 , and a spring 68 is fixedly connected between the bottom of the moving plate 64 and the side plate 62 .

[0046] In this embodiment, the movable plate 64 is supported by the spring 68. When the scraper 61 contacts the lithium battery material, the movable plate 64 is pulled by the spring 68, so that the movable plate 64 drives the scraper 61 to move, and then the scraper 61 contacts the outer surface of the lithium battery material, so that the device can be suitable for lithium battery materials of different specifications.

[0047] In addition, in the present utility model, regarding the above-mentioned liquid storage member:

[0048] like Figure 1-Figure 4 , Figure 8 As shown, the liquid storage component includes a liquid storage shell 3, the top of the liquid storage shell 3 is open to form a liquid storage cavity 16, the first annular frame 5 and the second annular frame 10 are both fixedly connected to the top of the liquid storage shell 3, and the bottom of the liquid storage shell 3 is fixedly connected to a bottom rod 1.

[0049] In this embodiment, the liquid storage shell 3 is supported by the bottom rod 1, and the coating liquid is added into the liquid storage chamber 16 to store the coating liquid.

[0050] How to fix the annular guide frame 63? Figure 5-Figure 6As shown, a bracket 7 is fixedly connected to the top of the liquid storage shell 3, the bracket 7 is between the first annular frame 5 and the second annular frame 10, and a side frame 8 is fixedly connected to one side of the bracket 7, and the free side of the side frame 8 is fixedly connected to the inner wall of the annular guide frame 63.

[0051] In this embodiment, the bracket 7 is supported by the liquid storage shell 3 , and the side frame 8 is supported by the bracket 7 and the side frame 8 supports the annular guide frame 63 .

[0052] When the pressure pump 2 sucks the coating liquid, in order to facilitate the coating liquid to be sucked, Figure 8 As shown, the bottom end of the liquid storage chamber 16 is inclined upward from one side close to the pressure pump 2 to the other side to form a slope 17.

[0053] In this embodiment, when the pressure pump 2 needs to suck the coating liquid, the slope 17 cooperates to facilitate the coating liquid to be sucked by the pressure pump 2 .

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-sided coating machine for lithium battery materials, characterized in that: The invention comprises a liquid storage part for storing a coating liquid, a lithium battery material moving along a preset direction is arranged above the liquid storage part, and a liquid spraying part for spraying the coating liquid onto the lithium battery material and a drying part for drying the coating liquid on the lithium battery material are arranged one by one above the liquid storage part along the moving direction of the lithium battery material, and the liquid spraying part comprises an infusion part and a first annular frame (5), the inner wall of the first annular frame (5) is fixedly connected with a plurality of liquid spraying heads (4) in an annular array, an infusion channel for conveying the coating liquid along a preset path is formed on the infusion part, the liquid inlet end of the infusion channel is connected to the inside of the liquid storage part, and the liquid outlet end of the infusion channel is connected to the inside of the first annular frame (5).

2. A double-sided coating machine for lithium battery materials according to claim 1, characterized in that: The infusion component comprises a pressure pump (2), and the liquid inlet end and the liquid outlet end of the pressure pump (2) are respectively fixedly connected to a liquid inlet tube (15) and a liquid infusion tube (12).

3. A double-sided coating machine for lithium battery materials according to claim 2, characterized in that: The drying element comprises a pressurized air pump (14), the air inlet end and the air outlet end of the pressurized air pump (14) are respectively connected to an air inlet pipe (13) and an air delivery pipe (11), the air outlet end of the air delivery pipe (11) is fixedly connected to a second annular frame (10), a plurality of nozzles (9) are fixedly connected to the inner wall of the second annular frame (10) in an annular array, and an electric heating wire is arranged inside the second annular frame (10).

4. A double-sided coating machine for lithium battery materials according to claim 3, characterized in that: A scraping member (6) for scraping the outer peripheral surface of the lithium battery material is arranged between the first annular frame (5) and the second annular frame (10).

5. A double-sided coating machine for lithium battery materials according to claim 4, characterized in that: The scraping member (6) comprises an annular guide frame (63), the outer circumferential surface of the annular guide frame (63) is recessed to form a guide groove (69), and a movable frame (66) is slidably connected to the outer circumferential surface of the annular guide frame (63), and a scraping portion for scraping lithium battery materials is fixedly connected to one side of the movable frame (66).

6. A double-sided coating machine for lithium battery materials according to claim 5, characterized in that: The movable frame (66) is rotatably connected to a driving wheel (65) inside, the outer peripheral surface of the driving wheel (65) is located inside the guide groove (69) and contacts the inner wall of the guide groove (69), and the movable frame (66) is fixedly connected to a motor (67), the output end of the motor (67) is connected to the driving wheel (65).

7. A double-sided coating machine for lithium battery materials according to claim 6, characterized in that: The scraping part comprises a side plate (62), a scraper plate (61) is installed inside the side plate (62), a moving plate (64) is fixedly connected to the top of the scraper plate (61), and a spring (68) is fixedly connected between the bottom of the moving plate (64) and the side plate (62).

8. A double-sided coating machine for lithium battery materials according to claim 7, characterized in that: The liquid storage component comprises a liquid storage shell (3), the top of the liquid storage shell (3) is open to form a liquid storage cavity (16), the first annular frame (5) and the second annular frame (10) are both fixedly connected to the top of the liquid storage shell (3), and the bottom of the liquid storage shell (3) is fixedly connected to a bottom rod (1).

9. A double-sided coating machine for lithium battery materials according to claim 8, characterized in that: A bracket (7) is fixedly connected to the top of the liquid storage shell (3), the bracket (7) is located between the first annular frame (5) and the second annular frame (10), and a side frame (8) is fixedly connected to one side of the bracket (7), and a free side of the side frame (8) is fixedly connected to the inner wall of the annular guide frame (63).

10. A double-sided coating machine for lithium battery materials according to claim 9, characterized in that: The bottom end of the liquid storage chamber (16) is inclined upward from one side close to the pressure pump (2) to the other side to form a slope (17).

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