Dispersing and shearing device for conductive paste of carbon nano tube

Abstract

The utility model discloses a carbon nanotube conductive paste dispersing and shearing device which comprises a base and a stirring barrel, an L-shaped mounting frame is mounted on the top of the base and located on one side of the stirring barrel, a rotating shaft is rotatably connected to the bottom side of the top of the mounting frame, and a connecting plate is fixedly connected to the bottom of the rotating shaft. A connecting rod is fixedly connected to the bottom side of the top of the mounting frame and located in the rotating shaft, the connecting rod penetrates through the rotating shaft and the connecting plate, a first fixing rod is fixedly connected to the bottom of the connecting rod, and a plurality of heaters and coolers are symmetrically and fixedly connected to the outer side of the first fixing rod at equal intervals and are vertically arranged at intervals. By means of the structure, the rotating stirring rods generate strong shearing force and impact force on slurry, physical dispersion of the slurry is achieved, in the stirring process, the heater and the cooler arranged in the middle can conduct heat exchange with the flowing slurry more effectively, uniform distribution of the temperature of the slurry is facilitated, and the production efficiency and the product quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon nanotube conductive slurry, in particular to a carbon nanotube conductive slurry dispersing and shearing device. Background Art

[0002] Carbon nanotubes are widely used in electronics, energy, composite materials and other fields due to their excellent electrical conductivity and mechanical properties. Dispersion shearing of carbon nanotube slurry refers to the process of uniformly dispersing solid particles (such as carbon nanotubes) in a liquid matrix to form a uniform slurry during the preparation process. For carbon nanotube conductive slurry, good dispersibility is the key to ensure its conductive properties and application effect.

[0003] In the prior art, after searching, it was found that a Chinese patent disclosed "Dispersion and shearing equipment for conductive slurry of carbon nanotubes", and its application number is "202220666960.1". The above patent mainly includes a base, a support rod is provided on the base, a support frame is provided at one end of the support rod, a motor is provided on one side of the support frame, a rotating rod is connected to one end of the motor, a stirring blade is provided on the side of the rotating rod, a stirring barrel is provided on one side of the support rod, a mounting seat is provided on the side of the stirring barrel, one end of the mounting seat is fixedly installed on the base, the rotating rod is located in the stirring barrel, an interlayer is provided on the wall of the stirring barrel, a cooling copper tube is provided in the interlayer, a water inlet is provided on the side of the opening end of the stirring barrel, the water inlet is connected to one end of the cooling copper tube, a water outlet is provided on the side of the bottom of the stirring barrel, the water outlet is connected to the other end of the cooling copper tube, one end of the water inlet is connected to a first water pipe, one end of the first water pipe is connected to a water pump, one end of the water pump is connected to a second water pipe, the second water pipe is connected to a coolant tank, the coolant tank is connected to a third water pipe, and the third water pipe is connected to the water outlet. Although the above patent sets a cooling copper tube in the interlayer, it can reduce the working temperature during the dispersion and shearing operation, reduce the influence of Brownian motion, and make the carbon nanotubes easier to disperse, reduce the working time, and improve the working efficiency. However, when the cooling copper tube is set in the interlayer of the mixing barrel and used in conjunction with the agitator located in the middle of the mixing barrel, since the agitator is only set in the middle of the mixing barrel, its stirring force field is difficult to fully cover the slurry in the entire mixing barrel, especially in the edge and bottom areas of the mixing barrel, the fluidity and mixing degree of the slurry are often low. This causes the carbon nanotubes to be dispersed unevenly in the slurry, and local agglomeration or insufficient dispersion is prone to occur, which affects the conductive performance and stability of the slurry. In addition, when the cooling copper tube reduces the temperature of the mixing barrel wall, there is a certain thickness between it and the slurry in the middle of the mixing barrel, and the heat transfer efficiency is relatively low. In the case of poor stirring effect, the cooling effect is more limited, which may affect the dispersion effect and slurry quality. Therefore, the utility model provides a carbon nanotube conductive slurry dispersion and shearing device to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a carbon nanotube conductive slurry dispersion and shearing device, which is provided with a rotatable stirring rod to generate strong shearing force and impact force on the slurry, so as to achieve physical dispersion of the slurry. During the stirring and dispersion, the heater and cooler can be used as a stator in conjunction with the rotating stirring rod, thereby improving the dispersion and shearing effect. During the stirring process, the heater and cooler arranged in the middle can more effectively exchange heat with the flowing slurry, which helps to achieve uniform distribution of the slurry temperature and improve production efficiency and product quality.

[0005] To achieve the above-mentioned purpose, a carbon nanotube conductive slurry dispersion and shearing device is provided, comprising a base and a stirring barrel, a mounting frame with an L-shaped structure is installed on the top of the base and on one side of the stirring barrel, a rotating shaft is rotatably connected to the bottom side of the top of the mounting frame, a connecting plate is fixedly connected to the bottom of the rotating shaft, a connecting rod is fixedly connected to the bottom side of the top of the mounting frame and located inside the rotating shaft, the connecting rod is inserted into the rotating shaft and the connecting plate, and a first fixing rod is fixedly connected to the bottom of the connecting rod, a plurality of heaters and coolers are symmetrically fixedly connected to the outside of the first fixing rod, the cooler and the heater are spaced apart from each other, two second fixing rods are symmetrically fixedly connected to the bottom of the connecting plate and on one side close to the end, and a plurality of stirring rods are symmetrically fixedly connected to the outside of the two second fixing rods.

[0006] According to the carbon nanotube conductive slurry dispersion and shearing device, a movable plate is fixedly connected to the side of the mounting frame opposite to the stirring barrel and close to the top, a first electric push rod is fixedly connected to the top of the base and below the movable plate, the top of the piston rod of the first electric push rod is fixedly connected to the movable plate, two guide rods are symmetrically and slidably connected inside the movable plate, the bottoms of the two guide rods are fixedly connected to the top of the base, two limit plates are symmetrically and fixedly connected to the bottom of the mounting frame, and the two limit plates are slidably connected to the corresponding guide rods.

[0007] According to the carbon nanotube conductive slurry dispersion and shearing device, a motor is fixedly connected to the top of the mounting frame and one side close to the rotating shaft, the bottom of the motor output shaft passes through the interior of the mounting frame and extends to the bottom side of the top of the mounting frame, and pulleys are fixedly connected to the bottom of the motor output shaft and the outside of the rotating shaft, and the two pulleys are connected by belt drive.

[0008] According to the carbon nanotube conductive slurry dispersing and shearing device, four universal wheels are evenly installed on the bottom of the mixing barrel, and a handle is fixedly connected to the side of the mixing barrel opposite to the mounting frame.

[0009] According to the carbon nanotube conductive slurry dispersion and shearing device, fixed seats are fixedly connected on both sides of the base, second electric push rods are fixedly connected on the tops of the two fixed seats, and clamping plates are fixedly connected at the ends of the piston rods of the two second electric push rods. The two clamping plates are both set to an arc structure and can contact the outside of the mixing barrel.

[0010] According to the carbon nanotube conductive slurry dispersing and shearing device, a temperature sensor is provided on the outer side of the first fixing rod.

[0011] The utility model has the following beneficial effects:

[0012] 1. Compared with the prior art, the carbon nanotube conductive slurry dispersion and shearing device is provided with a rotatable stirring rod to generate strong shearing force and impact force on the slurry, thereby achieving physical dispersion of the slurry. During the stirring and dispersion, the heater and the cooler can be used as a stator in conjunction with the rotating stirring rod, thereby improving the dispersion and shearing effect;

[0013] 2. Compared with the prior art, in this carbon nanotube conductive slurry dispersion and shearing device, during the stirring process, the slurry continuously circulates in the stirring barrel, and the heater and cooler arranged in the middle can more effectively exchange heat with the flowing slurry, which helps to achieve uniform distribution of slurry temperature, reduce temperature gradients, avoid local overheating or overcooling, and improve production efficiency and product quality.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 This is a first overall structural schematic diagram of a carbon nanotube conductive slurry dispersion and shearing device of the utility model;

[0017] Figure 2 This is a second overall structural schematic diagram of a carbon nanotube conductive slurry dispersion and shearing device of the utility model;

[0018] Figure 3 This is a third overall structural schematic diagram of a carbon nanotube conductive slurry dispersion and shearing device of the utility model;

[0019] Figure 4 The utility model is a carbon nanotube conductive slurry dispersion and shearing device Figure 3 The enlarged structural diagram at A in the middle;

[0020] Figure 5The utility model is a schematic diagram of the cross-sectional structure of a rotating shaft and a connecting plate of a carbon nanotube conductive slurry dispersing and shearing device.

[0021] Legend:

[0022] 1. Base; 2. Mixing barrel; 3. Mounting frame; 4. Rotating shaft; 5. Connecting plate; 6. Connecting rod; 7. First fixed rod; 8. Pulley; 9. Heater; 10. Second fixed rod; 11. Mixing rod; 12. Motor; 13. Guide rod; 14. Movable plate; 15. First electric push rod; 16. Limiting plate; 17. Fixed seat; 18. Second electric push rod; 19. Clamping plate; 20. Universal wheel; 21. Cooler. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5 The utility model embodiment is a carbon nanotube conductive slurry dispersion and shearing device, which includes a base 1 and a stirring barrel 2. A mounting frame 3 with an L-shaped structure is installed on the top of the base 1 and on one side of the stirring barrel 2. A rotating shaft 4 is rotatably connected to the bottom side of the top of the mounting frame 3. A connecting plate 5 is fixedly connected to the bottom of the rotating shaft 4. A connecting rod 6 is fixedly connected to the bottom side of the top of the mounting frame 3 and located inside the rotating shaft 4. The connecting rod 6 is inserted into the rotating shaft 4 and the connecting plate 5, and a first fixing rod 7 is fixedly connected to the bottom of the connecting rod 6. A plurality of heaters 9 and a cooler 21 are symmetrically fixedly connected to the outside of the first fixing rod 7. The cooler 21 and the heater 9 are spaced apart from each other, and a temperature sensor is provided on the outside of the first fixing rod 7. Two second fixing rods 10 are symmetrically fixedly connected to one side of the bottom of the connecting plate 5 and close to the end, and a plurality of stirring rods 11 are symmetrically fixedly connected to the outside of the two second fixing rods 10.

[0025] The slurry to be dispersed is added to the inside of the mixing barrel 2, and the rotating shaft 4 can rotate to drive the connecting plate 5 and the second fixed rod 10 and the stirring rod 11 thereon to rotate, generating strong shear force and impact force on the slurry, and realizing physical dispersion of the slurry. While stirring and dispersing, the heater 9 and the cooler 21 can be used as stators in conjunction with the rotating stirring rod 11, thereby improving the dispersion shear effect. In the process of stirring and dispersing, the heater 9 generates heat to increase the temperature of the slurry, which helps to reduce the interaction force between the slurries and promote dispersion. The cooler 21 is started in time to reduce the slurry temperature according to the real-time temperature detected by the temperature sensor to prevent overheating from adversely affecting the quality of the slurry. The heating and cooling processes are alternately carried out to form dynamic temperature control to ensure that the slurry is dispersed under the best conditions. During the stirring process, the slurry circulates continuously in the mixing barrel 2, and the heater 9 and the cooler 21 arranged in the middle can more effectively exchange heat with the flowing slurry, which helps to achieve uniform distribution of slurry temperature, reduce temperature gradients, avoid local overheating or overcooling, and improve production efficiency and product quality.

[0026] Reference Figure 1 , Figure 2 and Figure 3 A movable plate 14 is fixedly connected to the side of the mounting frame 3 opposite to the mixing barrel 2 and close to the top. A first electric push rod 15 is fixedly connected to the top of the base 1 and below the movable plate 14. The top of the piston rod of the first electric push rod 15 is fixedly connected to the movable plate 14. The operation of the first electric push rod 15 drives the movable plate 14 to move up and down, so that the mounting frame 3 can be moved up and down through the movable movable plate 14. The mounting frame 3 moving upward can drive the first fixed rod 7, the second fixed rod 10 and other components to move above the mixing barrel 2, which is convenient for the movement of the mixing barrel 2. The mounting frame 3 moving downward can drive the first fixed rod 7, the second fixed rod 10 and other components to move into the mixing barrel 2, which is convenient for the subsequent mixing and dispersing work. There are also two guide rods 13 symmetrically and slidably connected inside the movable plate 14. The bottoms of the two guide rods 13 are fixedly connected to the top of the base 1. Two limit plates 16 are symmetrically and fixedly connected to the bottom of the mounting frame 3. The two limit plates 16 are slidably connected to the corresponding guide rods 13. When the mounting frame 3 moves up and down, the limit plates 16 are driven to slide on the outside of the guide rods 13. The coordinated connection between the limit plates 16 and the guide rods 13 helps to ensure the stability of the up and down movement of the mounting frame 3.

[0027] Reference Figure 3 and Figure 4A motor 12 is fixedly connected to the top of the mounting frame 3 and one side close to the rotating shaft 4. The bottom of the output shaft of the motor 12 passes through the inside of the mounting frame 3 and extends to the bottom side of the top of the mounting frame 3. The bottom of the output shaft of the motor 12 and the outside of the rotating shaft 4 are fixedly connected with pulleys 8. The two pulleys 8 are connected by belt transmission. The starting motor 12 drives the rotating shaft 4 to rotate through the pulleys 8 and the belt. The rotation of the rotating shaft 4 drives the connecting plate 5 and the second fixed rod 10 and the stirring rod 11 installed thereon to rotate together. The stirring rod 11 rotates at high speed in the mixing barrel 2 to physically disperse the slurry.

[0028] Reference Figure 1 , Figure 2 and Figure 3 Four universal wheels 20 are evenly installed on the bottom of the mixing barrel 2, and a handle is fixedly connected to the side of the mixing barrel 2 opposite to the mounting frame 3. The handle and the universal wheel 20 make the mixing barrel 2 more flexible to move. Fixed seats 17 are fixedly connected on both sides of the base 1, and second electric push rods 18 are fixedly connected to the tops of the two fixed seats 17. The ends of the piston rods of the two second electric push rods 18 are fixedly connected to clamping plates 19. The two clamping plates 19 are both set as arc structures and can contact the outside of the mixing barrel 2. After the mixing barrel 2 containing the slurry to be stirred and dispersed moves to the bottom of the stirring rod 11, the second electric push rod 18 runs to push the clamping plate 19 to fit the outside of the mixing barrel 2, which can fix the mixing barrel 2 well and ensure the stability of the mixing barrel 2 during the stirring and dispersing process.

[0029] Working principle: After the mixing barrel 2 containing the slurry to be stirred and dispersed moves to the bottom of the stirring rod 11, the second electric push rod 18 runs to push the clamping plate 19 to fit the outer side of the mixing barrel 2, which can fix the mixing barrel 2 well and ensure the stability of the mixing barrel 2 during the stirring and dispersing process;

[0030] The first electric push rod 15 is started to drive the movable plate 14 to move downward, and the downwardly moving mounting frame 3 can drive the first fixing rod 7, the second fixing rod 10 and other components to move into the mixing barrel 2, so as to facilitate the subsequent mixing and dispersing work;

[0031] The starting motor 12 drives the rotating shaft 4 to rotate through the pulley 8 and the belt, and the rotation of the rotating shaft 4 drives the connecting plate 5 and the second fixed rod 10 and the stirring rod 11 installed thereon to rotate together. The stirring rod 11 rotates at a high speed in the stirring barrel 2 to physically disperse the slurry; while stirring and dispersing, the heater 9 and the cooler 21 can be used as a stator in conjunction with the rotating stirring rod 11 to improve the dispersion shear effect. In the process of stirring and dispersing, the heater 9 generates heat to increase the temperature of the slurry, which helps to reduce the interaction force between the slurries and promote dispersion. The cooler 21 is started in time to reduce the slurry temperature according to the real-time temperature detected by the temperature sensor to prevent overheating from adversely affecting the quality of the slurry. The heating and cooling processes are alternated to form dynamic temperature control to ensure that the slurry is dispersed under the best conditions. During the stirring process, the slurry circulates continuously in the stirring barrel 2, and the heater 9 and the cooler 21 arranged in the middle can more effectively exchange heat with the flowing slurry, which helps to achieve a uniform distribution of the slurry temperature, reduce the temperature gradient, avoid the occurrence of local overheating or overcooling, and improve production efficiency and product quality.

[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A carbon nanotube conductive slurry dispersing and shearing device, characterized in that: The invention comprises a base (1) and a stirring barrel (2); a mounting frame (3) having an L-shaped structure is installed on the top of the base (1) and located on one side of the stirring barrel (2); a rotating shaft (4) is rotatably connected to the bottom side of the top of the mounting frame (3); a connecting plate (5) is fixedly connected to the bottom of the rotating shaft (4); a connecting rod (6) is fixedly connected to the bottom side of the top of the mounting frame (3) and located inside the rotating shaft (4); the connecting rod (6) is inserted into the rotating shaft (4) and the connecting plate (5); and a first fixing rod (7) is fixedly connected to the bottom of the connecting rod (6); a plurality of heaters (9) and coolers (21) are symmetrically fixedly connected to the outside of the first fixing rod (7); the coolers (21) and the heaters (9) are arranged at intervals from top to bottom; two second fixing rods (10) are symmetrically fixedly connected to the bottom of the connecting plate (5) and one side close to the end; and a plurality of stirring rods (11) are symmetrically fixedly connected to the outside of the two second fixing rods (10).

2. The carbon nanotube conductive slurry dispersing and shearing device according to claim 1, characterized in that: A movable plate (14) is fixedly connected to the side of the mounting frame (3) opposite to the mixing barrel (2) and close to the top; a first electric push rod (15) is fixedly connected to the top of the base (1) and below the movable plate (14); the top of the piston rod of the first electric push rod (15) is fixedly connected to the movable plate (14); two guide rods (13) are symmetrically slidably connected inside the movable plate (14); the bottoms of the two guide rods (13) are fixedly connected to the top of the base (1); two limit plates (16) are symmetrically fixedly connected to the bottom of the mounting frame (3); the two limit plates (16) are slidably connected to the corresponding guide rods (13).

3. The carbon nanotube conductive slurry dispersing and shearing device according to claim 2, characterized in that: A motor (12) is fixedly connected to the top of the mounting frame (3) and on one side close to the rotating shaft (4); the bottom of the output shaft of the motor (12) passes through the interior of the mounting frame (3) and extends to the bottom side of the top of the mounting frame (3); a pulley (8) is fixedly connected to the bottom of the output shaft of the motor (12) and the outside of the rotating shaft (4); and the two pulleys (8) are connected via a belt drive.

4. The carbon nanotube conductive slurry dispersing and shearing device according to claim 3, characterized in that: Four universal wheels (20) are evenly mounted on the bottom of the mixing barrel (2), and a handle is fixedly connected to the side of the mixing barrel (2) opposite to the mounting frame (3).

5. The carbon nanotube conductive slurry dispersing and shearing device according to claim 4, characterized in that: Both sides of the base (1) are fixedly connected to fixed seats (17), the tops of the two fixed seats (17) are fixedly connected to second electric push rods (18), the piston rod ends of the two second electric push rods (18) are fixedly connected to clamping plates (19), and the two clamping plates (19) are both configured as arc structures and can contact the outer side of the mixing barrel (2).

6. The carbon nanotube conductive slurry dispersing and shearing device according to claim 1, characterized in that: A temperature sensor is provided on the outer side of the first fixing rod (7).

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