Defoaming device for graphene powder coating production

Abstract

The utility model relates to the technical field of defoaming devices, and discloses a defoaming device for graphene powder coating production, which comprises a vacuum defoaming machine body, a sealing cover and a discharging pipe, the outer wall of the sealing cover is fixedly connected with a feeding pipe and a vacuumizing pipe, and the feeding pipe and the vacuumizing pipe are both communicated with the interior of the vacuum defoaming machine body. A supporting frame and a humidifying assembly are fixedly connected to the middle of the upper surface of the sealing cover. According to the defoaming device for production of the graphene powder coating, when a user defoams the graphene powder coating through the vacuum defoaming machine body, the interior of the vacuum defoaming machine body can be vacuumized through the vacuumizing pipe so as to remove bubbles, and the internal humidity of the vacuum defoaming machine body is monitored in real time through the monitoring sensor; and when the humidity is lower than the standard, the graphene powder coating is humidified through the humidifying assembly and then stirred and mixed through the stirring mechanism, so that the problem that the humidity of the internal graphene powder coating is reduced due to vacuumizing of the existing vacuum defoaming machine body can be solved.

Description

Technical Field

[0001] This utility model relates to the field of defoaming device technology, specifically a defoaming device for the production of graphene powder coatings. Background Technology

[0002] Graphene powder coatings are a new type of coating that combines the unique properties of graphene. During the production of graphene powder coatings, foam generation not only affects the mixing uniformity of the coating but can also lead to a decline in product quality, such as uneven coating thickness and reduced adhesion. Therefore, selecting a suitable defoaming device is crucial to ensuring the quality of the coating.

[0003] Currently, vacuum defoaming machines are mostly used in the production and defoaming of graphene powder coatings. For example, patent CN216855760U discloses a fully automatic vacuum defoaming machine, including a stabilizing plate and a stirring cylinder. The upper end of the stabilizing plate is provided with a locking base, which is fixedly connected to the upper end of the stabilizing plate. The stirring cylinder is located at the end of the locking base away from the stabilizing plate and is locked to the locking base. The end of the stirring cylinder away from the locking base is provided with a feed pipe, which communicates with the interior of the stirring cylinder. A vacuum suction pump is provided on one side of the feed pipe. A bubble extrusion device is connected to one side of the locking base through a connecting pipe. The end of the bubble extrusion device away from the locking base is provided with a discharge pipe. The interior of the stirring cylinder is provided with a discharge device, which has an inverted conical structure. The discharge device and the interior of the stirring cylinder are injection molded as an integrated structure. This fully automatic vacuum defoaming machine has a low bubble formation rate, is easy to handle, and facilitates subsequent processes.

[0004] However, the above-mentioned vacuum defoaming machine still has the following problems in actual use:

[0005] When using a vacuum defoamer to eliminate air bubbles inside graphene powder coatings, a vacuum pump is primarily used to create negative pressure inside the mixing drum, breaking the bubbles and expelling the resulting gas. However, during this process, some moisture required by the graphene powder coating inside the mixing drum is also drawn out, affecting the coating's humidity. This change in humidity can negatively impact the coating's quality. Currently, vacuum defoamers lack the capability for real-time humidity monitoring and humidification inside the mixing drum, which poses challenges for production and quality control. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a defoaming device for the production of graphene powder coatings, thereby solving the problem that the humidity of the internal graphene powder coating decreases when the vacuum body of the current vacuum defoaming machine is drawn.

[0007] This utility model provides the following technical solution: a defoaming device for graphene powder coating production, including a vacuum defoaming machine body, a sealing cover installed on the vacuum defoaming machine body, and a discharge pipe installed below the vacuum defoaming machine body. The outer wall of the sealing cover is fixedly connected to a feed pipe and a vacuum pipe. Both the feed pipe and the vacuum pipe are connected to the interior of the vacuum defoaming machine body. A support frame and a humidification component are fixedly connected to the middle of the upper surface of the sealing cover. A stirring mechanism is connected to the upper surface of the support frame. The output end of the stirring mechanism passes through the support frame, the humidification component, and the sealing cover to the interior of the vacuum defoaming machine body. The humidification component is located inside the support frame and is matched and aligned with the stirring mechanism. A monitoring sensor is embedded in the inner wall of the lower end of the vacuum defoaming machine body.

[0008] Furthermore, the stirring mechanism includes a stirring motor, a transmission rod, and several stirring rods. The outer wall of the stirring motor is fixedly connected to the upper surface of the support frame. The output shaft of the stirring motor is fixedly connected to the upper end of the transmission rod. The lower end of the transmission rod passes through the support frame, the humidification component, and the sealing cover to the interior of the vacuum defoamer body and is fixedly connected to several stirring rods. The humidification component is connected to the transmission rod.

[0009] Furthermore, several feed inlets are provided on one side of the upper end of the transmission rod, several partition cavities are provided inside the upper end of the transmission rod, several directional openings are provided inside the upper ends of several stirring rods, and several connecting ports are provided through the lower ends of several directional openings. Several partition cavities are respectively connected to several feed inlets and several directional openings, and several connecting ports are all connected to the interior of the vacuum defoamer body.

[0010] Furthermore, the humidification assembly includes a connecting ring and a water supply pipe. The outer wall of the connecting ring is fixedly connected to the middle of the upper surface of the sealing cover, the side wall of the connecting ring is fixedly connected to one end of the water supply pipe, the inside of the connecting ring has a conveying port, and the inner side wall of the connecting ring is rotatably connected to the outer wall of the upper end of the transmission rod. The water supply pipe, the conveying port and several feed inlets are internally connected.

[0011] Furthermore, a sampling tube is fixedly connected to the side wall of the connecting ring, and the sampling tube is connected to the inside of the delivery port.

[0012] Furthermore, the upper end of the stirring rod is inclined, and the highest point of the inlet is not higher than the lowest point of the partition chamber.

[0013] Furthermore, the number of stirring rods shall not be less than two.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This defoaming device for graphene powder coating production incorporates a stirring mechanism and a humidification component inside the vacuum defoaming machine body. When the user defoams the graphene powder coating through the vacuum defoaming machine body, a vacuum is drawn inside the machine body via a vacuum tube to remove air bubbles. The internal humidity of the machine body is monitored in real time by a monitoring sensor, and humidification is applied when the humidity is below the standard. The stirring mechanism then mixes the components, thus solving the problem that the current vacuum defoaming machine body causes a decrease in the humidity of the internal graphene powder coating. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall appearance of the present utility model;

[0017] Figure 2 This is a schematic diagram of the overall appearance of the present invention from another perspective;

[0018] Figure 3 This is a schematic diagram of the internal structure of the vacuum defoamer body of this utility model;

[0019] Figure 4 This is a cross-sectional schematic diagram of the body of the vacuum defoamer of this utility model;

[0020] Figure 5 This is a detailed connection diagram of the stirring mechanism and humidification component of this utility model;

[0021] Figure 6 This utility model Figure 5 Exploded view of the cross-sections of various components.

[0022] In the diagram: 1. Vacuum defoamer body; 2. Sealing cover; 3. Feed pipe; 4. Vacuuming pipe; 5. Support frame; 6. Stirring motor; 7. Connecting ring; 71. Conveying port; 8. Water pipe; 9. Sampling pipe; 10. Monitoring sensor; 11. Discharge pipe; 12. Stirring rod; 121. Connecting port; 122. Direction port; 13. Transmission rod; 131. Feed port; 132. Separating chamber. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figures 1-6A defoaming device for graphene powder coating production includes a vacuum defoamer body 1, a sealing cover 2 installed on the vacuum defoamer body 1, and a discharge pipe 11 installed below the vacuum defoamer body 1. The outer wall of the sealing cover 2 is fixedly connected to a feed pipe 3 and a vacuum pipe 4, both of which are connected to the interior of the vacuum defoamer body 1. A support frame 5 and a humidifying component are fixedly connected to the middle of the upper surface of the sealing cover 2. A stirring mechanism is connected to the upper surface of the support frame 5. The output end of the stirring mechanism passes through the support frame 5, the humidifying component, and the sealing cover 2 to the interior of the vacuum defoamer body 1. The humidifying component is located inside the support frame 5 and is matched and aligned with the stirring mechanism. A monitoring sensor 10 is embedded in the inner wall of the lower end of the vacuum defoamer body 1.

[0025] The defoaming device for graphene powder coating production described in this utility model is structurally similar to existing defoaming devices for graphene powder coating production, such as the fully automatic vacuum defoaming machine disclosed in patent announcement number CN216855760U. Figures 1 to 6 As shown, the defoaming device for graphene powder coating production in this utility model defoams graphene powder coating by first connecting the vacuum tube 4 to an external vacuum pump, then connecting the monitoring sensor 10 to the outside, and then connecting the humidification component to an external water tank and water pump. Next, the cover of the feed pipe 3 is opened, and the graphene powder coating to be defoamed is placed into the vacuum defoaming machine body 1. Then, the cover of the feed pipe 3 is closed, and the vacuum pump can normally draw a vacuum from the vacuum tube 4 to remove bubbles from the inside of the vacuum defoaming machine body 1. During the vacuuming process, the monitoring sensor 10 monitors the humidity inside the vacuum defoaming machine body 1 in real time. When the humidity is lower than the standard, the external water tank and water pump humidify the inside of the vacuum defoaming machine body 1 through the humidification component, and then the mixing is achieved through a stirring mechanism. This solves the problem that the current vacuum defoaming machine body 1 causes a decrease in the humidity of the internal graphene powder coating when drawing a vacuum.

[0026] It is important to note here that:

[0027] 1. The external vacuum pump, external water tank, and external water pump are all existing mature technologies, so they will not be described in detail here;

[0028] 2. The monitoring sensor 10 can be a humidity monitoring sensor or a viscosity monitoring sensor. Since these are both very mature technologies, we will not specify the model or explain the working principle here.

[0029] Please refer to the following: Figure 3 , Figure 5 and Figure 6The stirring mechanism includes a stirring motor 6, a transmission rod 13, and several stirring rods 12. The outer wall of the stirring motor 6 is fixedly connected to the upper surface of the support frame 5. The output shaft of the stirring motor 6 is fixedly connected to the upper end of the transmission rod 13. The lower end of the transmission rod 13 passes through the support frame 5, the humidification component, and the sealing cover 2 to the interior of the vacuum defoamer body 1, and is fixedly connected to several stirring rods 12. The humidification component is connected to the transmission rod 13.

[0030] More specifically, when it is necessary to stir the graphene powder coating inside the vacuum defoamer body 1, simply turn on the switch of the stirring motor 6. After the stirring motor 6 starts, the output shaft drives the transmission rod 13 to rotate. After the transmission rod 13 rotates, it can drive several stirring rods 12 to rotate together. After the stirring rods 12 rotate, they can stir the graphene powder coating, thereby accelerating the mixing of the liquid injected from the humidity component into the graphene powder coating with the graphene powder coating.

[0031] Please refer to the following: Figure 6 The transmission rod 13 has several feed inlets 131 on one side of its upper end, and several partition cavities 132 are provided inside the upper end of the transmission rod 13. Several stirring rods 12 have directional openings 122 inside their upper ends, and several directional openings 122 have connecting ports 121 extending through their lower ends. Several partition cavities 132 are connected to several feed inlets 131 and several directional openings 122 respectively, and several connecting ports 121 are connected to the interior of the vacuum defoamer body 1.

[0032] More specifically, by setting up the feed inlet 131, the partition chamber 132, the flow port 122, and the connection port 121, the transmission rod 13 and the stirring rod 12 can be connected to the humidification component. In this way, the liquid entering the vacuum defoamer body 1 from the humidification component will directly enter the graphene powder coating through the feed inlet 131, the partition chamber 132, the flow port 122, and the connection port 121, instead of being located on the surface of the graphene powder coating, thus facilitating mixing and stirring.

[0033] Please refer to the following: Figures 1-3 , Figure 5 and Figure 6 The humidification assembly includes a connecting ring 7 and a water supply pipe 8. The outer wall of the connecting ring 7 is fixedly connected to the middle of the upper surface of the sealing cover 2. The side wall of the connecting ring 7 is fixedly connected to one end of the water supply pipe 8. A conveying port 71 is opened inside the connecting ring 7. The inner side wall of the connecting ring 7 is rotatably connected to the outer wall of the upper end of the transmission rod 13. The water supply pipe 8, the conveying port 71 and several feed ports 131 are internally connected.

[0034] More specifically, when it is necessary to humidify the inside of the graphene powder coating, simply turn on the external water pump. The external water pump can inject water (or other solutions) from the external water tank into the water inlet pipe 8, and then enter the conveying port 71 of the connecting ring 7 through the water inlet pipe 8. Subsequently, it enters the inside of the graphene powder coating through the conveying port 71, the feed port 131, the partition chamber 132, the flow port 122 and the connecting port 121.

[0035] It is important to note that when humidification is not required, the water inlet pipe 8 can be closed via the valve to prevent the graphene powder coating from flowing back into the external water tank through the connection port 121, the flow port 122, the partition chamber 132, the feed port 131, and the delivery port 71. This would not only waste resources but could also damage the external water pump. The valve on the water pipe 8 is preferably a solenoid valve for easier control.

[0036] During the later cleaning process, water can be directly injected into the water inlet 8, conveying port 71, feed inlet 131, partition chamber 132, flow port 122 and connection port 121 through an external water pump for rinsing.

[0037] Please refer to the following: Figures 1-3 , Figure 5 and Figure 6 A sampling tube 9 is fixedly connected to the side wall of the connecting ring 7, and the sampling tube 9 is connected to the inside of the delivery port 71.

[0038] More specifically, in order to confirm whether the graphene powder coating inside the vacuum defoamer body 1 has been defoamed, a certain volume of graphene powder coating can be extracted from the vacuum defoamer body 1 through the sampling tube 9 for testing. If it still does not meet the standard, the above defoaming process is repeated. If it meets the standard, the graphene powder coating can be discharged directly from the discharge pipe 11 below the vacuum defoamer body 1.

[0039] It should be noted that the sampling tube 9 is equipped with a valve. When the water supply pipe 8 is opened, the valve of the sampling tube 9 is closed. Similarly, when the sampling tube 9 is opened, the valve of the water supply pipe 8 is closed.

[0040] Please refer to the following: Figure 6 The upper end of the stirring rod 12 is inclined, and the highest point of the flow port 122 is not higher than the lowest point of the partition chamber 132.

[0041] More specifically, this design allows the liquid in the partition chamber 132 to flow more easily into the flow port 122; at the same time, it reduces the probability of the graphene powder coating inside the vacuum defoamer body 1 flowing back into the partition chamber 132 or even into the conveying port 71.

[0042] Please refer to the following: Figure 3 , Figure 5 and Figure 6 The number of stirring rods 12 shall not be less than two.

[0043] More specifically, there are no fewer than two stirring rods 12, which can improve the stirring effect and efficiency when stirring the graphene powder coating inside the vacuum defoamer body 1.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A defoaming device for graphene powder coating production, comprising a vacuum defoaming machine body (1), a sealing cover (2) installed on the vacuum defoaming machine body (1), and a discharge pipe (11) installed below the vacuum defoaming machine body (1), characterized in that: The outer wall of the sealing cover (2) is fixedly connected to the feed pipe (3) and the vacuum pipe (4). The feed pipe (3) and the vacuum pipe (4) are both connected to the inside of the vacuum defoamer body (1). The middle part of the upper surface of the sealing cover (2) is fixedly connected to the support frame (5) and the humidification component. The upper surface of the support frame (5) is connected to the stirring mechanism. The output end of the stirring mechanism passes through the support frame (5), the humidification component and the sealing cover (2) to the inside of the vacuum defoamer body (1). The humidification component is located inside the support frame (5) and is matched and aligned with the stirring mechanism. The inner wall of the lower end of the vacuum defoamer body (1) is embedded with a monitoring sensor (10).

2. The defoaming device for graphene powder coating production according to claim 1, characterized in that: The stirring mechanism includes a stirring motor (6), a transmission rod (13) and several stirring rods (12). The outer wall of the stirring motor (6) is fixedly connected to the upper surface of the support frame (5). The output shaft of the stirring motor (6) is fixedly connected to the upper end of the transmission rod (13). The lower end of the transmission rod (13) passes through the support frame (5), the humidification component and the sealing cover (2) to the interior of the vacuum defoamer body (1) and is fixedly connected to several stirring rods (12). The humidification component is connected to the transmission rod (13).

3. The defoaming device for graphene powder coating production according to claim 2, characterized in that: A number of feed inlets (131) are provided on one side of the upper end of the transmission rod (13), a number of partition cavities (132) are provided inside the upper end of the transmission rod (13), a number of stirring rods (12) are provided inside the upper end of each of the several stirring rods (12), a connecting port (121) is provided through the lower end of each of the several connecting ports (122), the several partition cavities (132) are respectively connected to the several feed inlets (131) and the several connecting ports (122), and the several connecting ports (121) are all connected to the interior of the vacuum defoamer body (1).

4. The defoaming device for graphene powder coating production according to claim 3, characterized in that: The humidification assembly includes a connecting ring (7) and a water supply pipe (8). The outer wall of the connecting ring (7) is fixedly connected to the middle of the upper surface of the sealing cover (2). The side wall of the connecting ring (7) is fixedly connected to one end of the water supply pipe (8). A conveying port (71) is opened inside the connecting ring (7). The inner side wall of the connecting ring (7) is rotatably connected to the outer wall of the upper end of the transmission rod (13). The water supply pipe (8), the conveying port (71), and several feed inlets (131) are internally connected.

5. The defoaming device for graphene powder coating production according to claim 4, characterized in that: A sampling tube (9) is fixedly connected to the side wall of the connecting ring (7), and the sampling tube (9) is connected to the inside of the delivery port (71).

6. A defoaming device for graphene powder coating production according to claim 3, 4, or 5, characterized in that: The upper end of the stirring rod (12) is inclined, and the highest point of the flow port (122) is not higher than the lowest point of the partition chamber (132).

7. A defoaming device for graphene powder coating production according to claim 2, 3, 4 or 5, characterized in that: The number of stirring rods (12) shall not be less than two.

8. The defoaming device for graphene powder coating production according to claim 6, characterized in that: The number of stirring rods (12) shall not be less than two.

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