Coating tank device with defoaming function

Abstract

The utility model relates to a coating tank device with a defoaming function, which comprises a tank body, a stirring paddle is mounted in the tank body in a matching manner, the stirring paddle is connected with the output end of a stirring motor through a main shaft, a defoaming motor is mounted outside the tank body in a matching manner, the output end of the defoaming motor is connected with a rotating shaft through a connecting mechanism, and the rotating shaft is connected with the stirring paddle through a rotating shaft. The end of the rotating shaft extends into the tank body and is provided with a defoaming plate in a matched manner, and the defoaming plate is arranged above the stirring paddle; the stirring motor drives the stirring paddle to rotate through the main shaft so as to stir materials in the tank body, torque output by the defoaming motor is transmitted to the rotating shaft through the connecting mechanism, so that the rotating shaft drives the defoaming disc to rotate, and bubbles in the materials are removed through the rotating defoaming disc. By arranging the defoaming motor, the connecting mechanism, the rotating shaft and the defoaming disc, defoaming can be conveniently and rapidly achieved, air mixed into materials before the materials enter the coating tank can be removed, and therefore the product quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery slurry degassing technology, and in particular to a coating tank device with degassing function. Background Technology

[0002] The coating tank is an important component of the coating machine. It is used to store and stir the coating to be coated. The coating after being treated by the coating tank can achieve a more uniform and consistent consistency.

[0003] In existing technologies, coating in a coating tank is usually the final step in processing lithium battery slurry. Typically, the prepared, degassed lithium battery slurry is first fed into the coating tank via a conveying pipe assembly. However, achieving absolute sealing during slurry transport is difficult, leading to air mixing and the formation of bubbles in the slurry. Traditional coating tanks only have a stirring function and cannot remove these bubbles, thus affecting product quality. Utility Model Content

[0004] To address the shortcomings of the existing production technology, the applicant provides a coating tank device with degassing function. By incorporating a degassing motor, connecting mechanism, rotating shaft, and degassing disc, degassing can be achieved conveniently and quickly, removing air mixed in with the material before it enters the coating tank, thereby improving product quality. Simultaneously, the stirring paddle agitates the material inside the tank, making it easier for air bubbles to escape from the material, further facilitating degassing.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A coating tank device with defoaming function includes a tank body. An agitator is installed inside the tank body. The agitator is connected to the output end of an agitator motor via a main shaft. A defoaming motor is installed outside the tank body. The output end of the defoaming motor is connected to a rotating shaft via a connecting mechanism. The end of the rotating shaft extends into the interior of the tank body and is fitted with a defoaming disc. The defoaming disc is arranged above the agitator.

[0007] The stirring motor drives the stirring paddle to rotate through the main shaft, thereby stirring the material inside the tank. The torque output by the degassing motor is transmitted to the rotating shaft through the connecting mechanism, thereby causing the rotating shaft to drive the degassing disc to rotate, and then the rotating degassing disc removes air bubbles from the material.

[0008] As a further improvement to the above technical solution:

[0009] The connecting mechanism employs a first connecting component or a second connecting component;

[0010] The first connecting component is used to achieve a coaxial arrangement between the rotating shaft and the main shaft.

[0011] The structure of the first connecting component is as follows: it includes a first support base fixed to the top wall of the outer side of the tank, a support plate fixed to the top of the first support base, the first support base is hollow inside, a bearing seat is fixed inside the first support base, the bearing seat is installed with a rotating shaft through several first bearings, the shaft core of the rotating shaft has a central hole for avoiding the main shaft, and a driven pulley is fixed to the end of the rotating shaft.

[0012] It also includes a drive pulley connected to the output end of the degassing motor, and a transmission belt is installed between the drive pulley and the driven pulley.

[0013] Several second bearings are fitted between the inner wall of the central hole and the outer circumferential surface of the main shaft.

[0014] The structure of the second connecting component is as follows: it includes a hollow second support base, a degassing motor is fixed on the top of the second support base, the output end of the degassing motor extends into the interior of the second support base, and is connected to the rotating shaft through a coupling.

[0015] A circulation pipe assembly is installed between the discharge port and the inlet port of the tank. The material inside the tank flows out from the discharge port and flows back into the tank through the inlet port via the circulation pipe assembly.

[0016] A vacuum port is provided on the wall of the tank.

[0017] A support frame is fitted to the bottom of the tank.

[0018] The debubbling disc has the following structure: it includes a disc-shaped body, an opening at the top of the disc, and several annular grooves on the side wall of the opening, through which material on the disc is thrown out of the debubbling disc.

[0019] The cross-sectional shape of the through groove is rectangular or trapezoidal.

[0020] The beneficial effects of this utility model are as follows:

[0021] This utility model has a compact and reasonable structure and is easy to operate. By setting up a degassing motor, connecting mechanism, rotating shaft and degassing disc, the material can first pass through the degassing disc for degassing and then fall into the tank for stirring and degassing, thereby effectively removing air bubbles from the material and ensuring product quality.

[0022] This utility model also has the following advantages:

[0023] (1) The degassing disc in this utility model is designed with a narrow through groove, so that the material in the disc is thrown out through the narrow through groove under centrifugal force, thereby facilitating the overflow of the bubbles and achieving the degassing effect.

[0024] (2) By setting a vacuum port and a negative pressure source, the inside of the tank is kept in a vacuum state, which helps the bubbles in the slurry to overflow, thereby ensuring the degassing efficiency.

[0025] (3) The arrangement between the rotating shaft and the main shaft in this utility model is flexible and can be easily adjusted according to actual usage needs.

[0026] (4) By setting up a circulation pipe group in this utility model, it is helpful to realize the circulation and stirring of materials and continuous degassing, thereby improving the uniformity of materials and the degassing effect. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model.

[0028] Figure 2 for Figure 1 A magnified view of a portion of the image.

[0029] Figure 3 This is a schematic diagram of the installation structure of the agitator and the degassing disc.

[0030] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0031] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0032] Figure 6 for Figure 5 A magnified view of a portion of the image.

[0033] Figure 7 for Figure 6 A magnified view of a section at point B in the middle.

[0034] The components include: 1. Tank body; 2. Agitator; 3. Main shaft; 4. Agitator motor; 5. Deaeration motor; 6. Connecting mechanism; 7. Vacuum port; 8. Rotary shaft; 9. Deaeration disc; 10. Circulation pipe assembly; 11. Support frame; 12. Delivery pump;

[0035] 601. First connecting component; 602. Second connecting component;

[0036] 6011, Driving pulley; 6012, Driven pulley; 6013, Transmission belt; 6014, First support seat; 6015, Support plate; 6016, Bearing housing; 6017, First bearing; 6018, Second bearing;

[0037] 6021, Coupling; 6022, Second support seat; 6023, Third bearing; 6024, Bearing housing;

[0038] 901, Disc body; 902, Through slot. Detailed Implementation

[0039] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0040] Example 1:

[0041] like Figures 1-4 As shown, the coating tank device with degassing function in this embodiment includes a tank body 1. A stirring paddle 2 is installed inside the tank body 1. The stirring paddle 2 is connected to the output end of a stirring motor 4 via a main shaft 3. A degassing motor 5 is installed outside the tank body 1. The output end of the degassing motor 5 is connected to a rotating shaft 8 via a connecting mechanism 6. The end of the rotating shaft 8 extends into the interior of the tank body 1 and is fitted with a degassing disc 9, which is arranged above the stirring paddle 2. The stirring motor 4 drives the stirring paddle 2 to rotate via the main shaft 3, thereby stirring the material inside the tank body 1. The torque output by the degassing motor 5 is transmitted to the rotating shaft 8 via the connecting mechanism 6, thereby causing the rotating shaft 8 to drive the degassing disc 9 to rotate, and thus removing air bubbles from the material through the rotating degassing disc 9.

[0042] The connecting mechanism 6 adopts a first connecting component 601 or a second connecting component 602; the first connecting component 601 is used to realize the coaxial arrangement between the rotating shaft 8 and the main shaft 3.

[0043] The structure of the first connecting assembly 601 is as follows: it includes a first support base 6014 fixed to the top wall of the outer side of the tank 1, a support plate 6015 fixed to the top of the first support base 6014, the first support base 6014 is hollow inside, a bearing seat 6016 is fixed inside the first support base 6014, the bearing seat 6016 is installed with the rotating shaft 8 through several first bearings 6017, the shaft core of the rotating shaft 8 has a central hole for avoiding the main shaft 3, and the end of the rotating shaft 8 is fixed with a driven pulley 6012; it also includes a drive pulley 6011 connected to the output end of the degassing motor 5, and a transmission belt 6013 is installed between the drive pulley 6011 and the driven pulley 6012.

[0044] The specific structure and function of this embodiment are as follows:

[0045] The coating tank device of this embodiment includes a tank body 1, a stirring paddle 2, a main shaft 3, a stirring motor 4, a degassing motor 5, a first connecting assembly 601, a rotating shaft 8, a degassing disc 9, and a circulation pipe assembly 10; wherein,

[0046] The tank 1 is used to hold materials. In this embodiment, the materials are solid-liquid mixtures. The outer top wall of the tank 1 is fixed to the first support base 6014. The top of the first support base 6014 is fixed to the support plate 6015. The top of the support plate 6015 is fixed with a stirring motor 4 and a degassing motor 5 arranged at intervals.

[0047] In this embodiment, the rotating shaft 8 is arranged coaxially with the main shaft 3. The rotating shaft 8 is a hollow shaft. The shaft core of the rotating shaft 8 has a central hole. Several second bearings 6018 are installed between the inner wall of the central hole and the outer circumferential surface of the main shaft 3. By setting the second bearings 6018, the rotational stability of the main shaft 3 can be guaranteed.

[0048] The end of the main shaft 3 passes through the tank 1, the first support 6014, and the support plate 6015 in sequence, thereby connecting with the output end of the stirring motor 4. The stirring paddle 2 is installed on the outer circumference of the main shaft 3. The stirring paddle 2 is arranged inside the tank 1. The stirring motor 4 drives the main shaft 3 to rotate, thereby driving the stirring paddle 2 to rotate, and thus stirring and mixing the material inside the tank 1.

[0049] A vacuum port 7 is provided on the wall of the tank 1. The vacuum port 7 is connected to the first interface of the tee connector, the second interface of the tee connector is connected to the vacuum source, and an automatic valve is installed on the third interface of the tee connector. When the vacuum source is started, the vacuum port 7 is used to evacuate the inside of the tank 1, thereby achieving efficient degassing. When the automatic valve is closed, the internal space of the tank 1 is isolated from the external environment. When the automatic valve is opened, the internal space of the tank 1 is connected to the external environment, thereby enabling the vacuum inside the tank 1 to be broken.

[0050] A support frame 11 is installed at the bottom of the tank body 1 to support the tank body 1.

[0051] In this embodiment, a first connecting component 601 is used to transmit the torque output by the degassing motor 5 to the rotating shaft 8. The first connecting component 601 includes a driving pulley 6011, a driven pulley 6012, a transmission belt 6013, a first support base 6014, a support plate 6015, a bearing housing 6016, a first bearing 6017, and a second bearing 6018; wherein,

[0052] The driving pulley 6011 is arranged below the support plate 6015 and is connected to the output end of the degassing motor 5 arranged above the support plate 6015 via a connecting shaft. The driven pulley 6012 is fixed to the end of the rotating shaft 8. A transmission belt 6013 is installed between the driven pulley 6012 and the driving pulley 6011. The degassing motor 5 drives the driving pulley 6011 to rotate via the connecting shaft, thereby driving the driven pulley 6012 to rotate via the transmission belt 6013, which in turn causes the rotating shaft 8 to rotate.

[0053] The first support 6014 is used to protect the bearings and bearing housing components inside it, and can provide stable support for the support plate 6015.

[0054] The first support 6014 has an internal fixed bearing seat 6016. The bearing seat 6016 is installed in conjunction with the rotating shaft 8 through several first bearings 6017. The first bearings 6017 are spaced apart along the axial direction of the rotating shaft 8, thereby effectively improving the rotational stability of the rotating shaft 8.

[0055] The other end of the rotating shaft 8 extends into the interior of the tank 1 and is fitted with a degassing disc 9. The degassing disc 9 has the following structure: a disc-shaped disc body 901 with an opening at the top and several annular grooves 902 on the side wall of the opening, allowing material on the disc body 901 to be thrown out of the degassing disc 9 through the grooves 902. In this embodiment, a mounting hole is provided in the middle of the disc body 901, through which the rotating shaft 8 is fitted, so that the rotating shaft 8, the main shaft 3, and the degassing disc 9 are all arranged coaxially, thereby allowing a larger degassing disc 9 to be installed in the tank 1, thus improving the degassing efficiency.

[0056] The cross-sectional shape of the channel 902 is rectangular or trapezoidal. When the defoaming disc 9 rotates, under the action of centrifugal force, the material in the defoaming disc 9 is thrown out through the channel 902. The channel 902 has a narrow slit structure, which makes the material flowing out of the disc 901 become a thin layer of slurry with the corresponding slit shape, thereby facilitating the separation and overflow of air bubbles from the thin layer of slurry. It can perform defoaming action while the stirring paddle 2 is stirring the material, and the defoaming effect is good.

[0057] A circulation pipe assembly 10 is installed between the discharge port and the inlet port of tank 1. Material inside tank 1 flows out from the discharge port and re-enters the tank through the circulation pipe assembly 10. An inclined connecting pipe is installed inside tank 1, with its discharge port facing the opening at the top of the disc 901. This allows material entering tank 1 through the inlet to first pass through the degassing disc 9 before falling into tank 1. By installing the circulation pipe assembly 10, the slurry inside tank 1 can be circulated, stirred, and continuously degassed, thereby improving the uniformity of the material and the degassing effect. Furthermore, a conveying pump 12 is installed on the circulation pipe assembly 10 to drive the material circulation.

[0058] The working process of this embodiment is as follows:

[0059] When the vacuum source is activated and the automatic valve is closed, the vacuum source draws a vacuum inside the tank 1 through the vacuum port 7, thus creating a vacuum inside the tank 1.

[0060] The stirring motor 4 and the degassing motor 5 are started. The stirring motor 4 drives the stirring paddle 2 to rotate through the main shaft 3, and the degassing motor 5 drives the degassing disc 9 to rotate through the rotating shaft 8.

[0061] The material to be coated first falls into the defoaming disc 9 through the inlet and connecting pipe of the tank 1. The rotating defoaming disc 9 generates centrifugal force on the material inside, so that the material on the disc 901 is thrown out through the channel 902, forming a multi-layer thin slurry and falling into the tank 1 below the defoaming disc 9. Under vacuum environment, the bubbles inside the multi-layer thin slurry overflow and break, thereby achieving the defoaming effect.

[0062] The agitator 2 further agitates and mixes the degassed material, and degassed it again.

[0063] Finally, materials can be stored in tank 1, or materials can be discharged from the outlet of tank 1.

[0064] Example 2:

[0065] like Figures 5-7 As shown, the difference between this embodiment and embodiment one is that in this embodiment, the connecting mechanism 6 adopts the second connecting component 602, the rotating shaft 8 adopts a solid shaft, the rotating shaft 8 is not coaxial with the central shaft 3, and the debubbling plate 9 is located on one side of the main shaft 3;

[0066] The second connecting assembly 602 has the following structure: it includes a hollow second support base 6022, with a degassing motor 5 fixed to the top of the second support base 6022. The output end of the degassing motor 5 extends into the interior of the second support base 6022 and is connected to the rotating shaft 8 via a coupling 6021. A bearing seat 6024 is also installed inside the second support base 6022, with its end extending into the tank body 1. The bearing seat 6024 surrounds the outer circumferential surface of the rotating shaft 8. Several third bearings 6023 are fitted between the outer circumferential surface of the rotating shaft 8 and the inner wall of the bearing seat 6024. By setting the bearing seat 6024 and the third bearings 6023, the rotational stability of the rotating shaft 8 can be improved. In this embodiment, the output end of the degassing motor 5 is connected to the rotating shaft 8 via the coupling 6021, which improves torque transmission efficiency.

[0067] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A coating tank device with defoaming function, comprising a tank body (1), wherein a stirring paddle (2) is fitted inside the tank body (1), and the stirring paddle (2) is connected to the output end of a stirring motor (4) via a main shaft (3), characterized in that: A degassing motor (5) is installed on the outside of the tank (1). The output end of the degassing motor (5) is connected to the rotating shaft (8) through a connecting mechanism (6). The end of the rotating shaft (8) extends into the inside of the tank (1) and is fitted with a degassing disc (9). The degassing disc (9) is arranged above the stirring paddle (2). The stirring motor (4) drives the stirring paddle (2) to rotate through the main shaft (3), thereby stirring the material inside the tank (1). The torque output by the degassing motor (5) is transmitted to the rotating shaft (8) through the connecting mechanism (6), thereby causing the rotating shaft (8) to drive the degassing disc (9) to rotate, and then the degassing disc (9) removes bubbles from the material.

2. The coating tank device with defoaming function as described in claim 1, characterized in that: The connecting mechanism (6) adopts a first connecting component (601) or a second connecting component (602); The first connecting component (601) is used to realize the coaxial arrangement between the rotating shaft (8) and the main shaft (3).

3. The coating tank device with defoaming function as described in claim 2, characterized in that: The structure of the first connecting component (601) is as follows: it includes a first support seat (6014) fixed to the top wall of the tank (1), a support plate (6015) fixed to the top of the first support seat (6014), the first support seat (6014) is hollow inside, a bearing seat (6016) is fixed inside the first support seat (6014), the bearing seat (6016) is installed with the rotating shaft (8) through several first bearings (6017), the shaft core of the rotating shaft (8) is provided with a central hole for avoiding the main shaft (3), and the end of the rotating shaft (8) is fixed with a driven pulley (6012); It also includes a drive pulley (6011) connected to the output end of the degassing motor (5), and a transmission belt (6013) is installed between the drive pulley (6011) and the driven pulley (6012).

4. The coating tank device with defoaming function as described in claim 3, characterized in that: Several second bearings (6018) are fitted between the inner wall of the central hole and the outer circumferential surface of the main shaft (3).

5. The coating tank device with defoaming function as described in claim 2, characterized in that: The structure of the second connecting component (602) is as follows: it includes a hollow second support base (6022), the top of the second support base (6022) is fixed with a degassing motor (5), the output end of the degassing motor (5) extends into the interior of the second support base (6022) and is connected to the rotating shaft (8) through a coupling (6021).

6. The coating tank device with defoaming function as described in claim 1, characterized in that: A circulation pipe assembly (10) is installed between the outlet and the inlet of the tank (1). The material inside the tank (1) flows out from the outlet and flows back into the tank (1) through the circulation pipe assembly (10).

7. The coating tank device with defoaming function as described in claim 1, characterized in that: A vacuum port (7) is provided on the wall of the tank (1).

8. The coating tank device with defoaming function as described in claim 1, characterized in that: A support frame (11) is fitted to the bottom of the tank (1).

9. The coating tank device with defoaming function as described in claim 1, characterized in that: The structure of the debubbling disc (9) is as follows: it includes a disc body (901) in the shape of a disc, the top of the disc body (901) is provided with an opening, and several annular through grooves (902) are opened on the side wall of the opening, through which the material on the disc body (901) is thrown out of the debubbling disc (9).

10. A coating tank device with defoaming function as described in claim 9, characterized in that: The cross-sectional shape of the through groove (902) is rectangular or trapezoidal.

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