Material synthesis equipment based on ultrasonic assistance

Abstract

The invention discloses material synthesis equipment based on ultrasonic assistance, and belongs to the technical field of material mixing, the material synthesis equipment comprises a dynamic mixing tank body and a mounting seat, the periphery of the mounting seat is provided with a functional mounting ring, and the functional mounting ring is provided with a plurality of vibration inner columns controlled by an ultrasonic high-frequency vibration module. High-frequency vibration generated by the ultrasonic high-frequency vibration module is transmitted to a material through the vibration inner column and the internal pressure spray head, agglomeration of nano reinforced phases such as carbon nanotubes and graphene is effectively broken, uniform dispersion in a polyimide matrix is achieved, the problem of local aggregation of traditional stirring is avoided, and the preparation process is simple. Efficient mixing in the vertical direction is formed through reversely rotating spiral conveying blades and a stirring outer pipe fitting in combination with the cutting effect of a shear stress cutting-off piece, the materials are sprayed out through high-pressure jet flow in different directions through reciprocating movement of an internal pressure impact sleeve piece, and the conductivity and mechanical performance of the composite materials are remarkably improved in combination with ultrasonic vibration; dynamic mixing in a three-dimensional space is achieved, and material interface bonding is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of material mixing, and in particular to an ultrasound-assisted material synthesis device. Background Art

[0002] With the widespread use of renewable energy and the growth of the electric vehicle market, the demand for high energy density and high safety batteries is also increasing. Polyimide-based composite materials are widely used in battery production as a new type of electrode material with good mechanical properties, good chemical stability and good electrical conductivity.

[0003] During the synthesis process of polyimide-based composite materials, the raw materials need to be fully mixed and stirred. Traditional stirring methods are difficult to achieve uniform dispersion in the synthesis of polyimide-based composite materials, especially when reinforcing phases (such as carbon nanotubes and graphene) are introduced. Poor dispersion will lead to a decrease in the performance of the composite material. How to achieve efficient dispersion and uniform compounding of reinforcing materials through equipment optimization is an urgent problem that needs to be solved. Based on this, a material synthesis equipment based on ultrasound assistance is proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the existing stirring method is difficult to achieve uniform dispersion in the synthesis of polyimide-based composite materials, especially when introducing reinforcing phases (such as carbon nanotubes and graphene), poor dispersion will lead to a decrease in the performance of the composite materials. A material synthesis device based on ultrasound assistance is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A material synthesis device based on ultrasound assistance includes a dynamic mixing tank body and a mounting seat, wherein the mounting seat is provided with a functional mounting ring around the periphery, the functional mounting ring being connected to the dynamic mixing tank body via an upper end ring, the functional mounting ring being provided with a plurality of vibrating inner columns controlled by an ultrasonic high-frequency vibration module, the vibrating inner columns penetrating into the dynamic mixing tank body, the dynamic mixing tank body being provided with a plurality of telescopic openings, an internal pressure impact kit being slidably connected within the telescopic openings, the internal pressure impact kit being sleeved on the vibrating inner columns and connected to the vibrating inner columns via a vibration transmitting member, and the functional mounting ring being provided with a traction drive device for driving the plurality of internal pressure impact kits to reciprocate;

[0007] The bottom of the dynamic mixing tank body is rotatably provided with an outer stirring tube, the outer side wall of the outer stirring tube is provided with a shear stress cutting piece, the interior of the outer stirring tube is hollow, and a conveying shaft is provided inside, and a spiral conveying blade is provided outside the conveying shaft. A stirring motor is provided at the bottom of the mounting seat, and the stirring motor drives the outer stirring tube and the conveying shaft to rotate respectively through a transmission assembly.

[0008] Preferably, the internal pressure impact kit includes an inner sleeve and an outer sleeve, the outer sleeve is located in the telescopic opening and is sleeved on the inner sleeve, the inner sleeve and the outer sleeve are provided with corresponding overflow ports, the end of the inner sleeve and the end of the outer sleeve are respectively provided with an inner end plate and an outer end plate, and the inner end plate and the outer end plate are connected by a telescopic spring column.

[0009] Preferably, the vibration transmission member includes a vibration touch plate arranged at the end of the vibration inner column, a piston is provided on the outer side wall of the vibration touch plate, and multiple outer sleeves are provided with internal pressure nozzles, which are in contact with the vibration touch plate and can realize the transmission of ultrasonic high-frequency vibrations. The directions of the multiple internal pressure nozzles are different.

[0010] Preferably, the traction drive device includes a traction drive motor arranged on a functional mounting ring, a traction disc is rotatably arranged on the inner side wall of the functional mounting ring, a drive gear ring is arranged at the bottom of the traction disc, and the output end of the traction drive motor is meshed and connected with the drive gear ring through a drive gear.

[0011] Preferably, a guide track is provided on the traction disc, a traction column is fixedly connected to the inner end disc, and the bottom of the traction column is located in the guide track and reciprocates according to the track of the guide track.

[0012] Preferably, the shear stress cutting piece includes a suspended ring connected to the inner wall of the dynamic mixing tank through multiple support rods, the bottom of the suspended ring is provided with multiple cutting rods that fit tightly on the stirring outer tube, and the outer side wall of the top of the stirring outer tube is densely covered with extrusion holes.

[0013] Preferably, a built-in chassis is rotatably provided at the bottom of the dynamic mixing tank body, the built-in chassis is connected to the stirring outer pipe through a plurality of connecting columns, and a transmission sleeve is provided at the bottom of the built-in chassis and extends outward through the side wall of the dynamic mixing tank body.

[0014] Preferably, the transmission assembly includes a central bevel gear connected to the output end of the stirring motor, and the upper and lower ends of the central bevel gear are respectively meshed and connected to two transmission gear plates, the transmission gear plate located above is connected to the transmission sleeve, and the conveying shaft extends downward through the transmission sleeve and is fixedly connected to the transmission gear plate located below.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention utilizes the high-frequency vibration generated by the ultrasonic high-frequency vibration module, which is transmitted to the material through the vibrating inner column and the internal pressure nozzle, effectively breaking the agglomeration of nano-reinforced phases such as carbon nanotubes and graphene, achieving their uniform dispersion in the polyimide matrix, avoiding the local aggregation problem of traditional stirring, and significantly improving the conductivity and mechanical properties of the composite material.

[0017] 2. The present invention uses counter-rotating spiral conveying blades and stirring outer pipes to convey and extrude materials from the bottom upward, combined with the cutting action of the shear stress cutting piece to form efficient mixing in the vertical direction. The reciprocating movement of the internal pressure impact kit causes the material to be ejected through high-pressure jets in different directions. Combined with ultrasonic vibration, dynamic mixing in three-dimensional space is achieved, thereby enhancing the interface bonding of the materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention proposes a three-dimensional structure assembly of a material synthesis device based on ultrasound assistance Figure 1 ;

[0019] Figure 2 The present invention proposes a three-dimensional structure assembly of a material synthesis device based on ultrasound assistance Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of an ultrasound-assisted material synthesis device proposed in the present invention;

[0021] Figure 4 This is a schematic diagram of the assembly structure of the stirring outer pipe and the shear stress cutting member in the ultrasonic-assisted material synthesis equipment proposed by the present invention;

[0022] Figure 5 This is a schematic structural diagram of a stirring outer pipe and a shear stress cutting member in an ultrasound-assisted material synthesis device proposed in the present invention;

[0023] Figure 6 This is a schematic structural diagram of an internal pressure impact kit in an ultrasound-assisted material synthesis device proposed in the present invention;

[0024] Figure 7 This is a schematic diagram of the assembly structure of an internal pressure impact kit in an ultrasound-assisted material synthesis device proposed in the present invention.

[0025] In the figure: 1. Dynamic mixing tank body; 2. Mounting seat; 3. Functional mounting ring; 4. Upper end ring; 5. Vibrating inner column; 6. Stirring outer pipe; 7. Conveying shaft; 8. Spiral conveying blade; 9. Inner sleeve; 10. Outer sleeve; 11. Corresponding overflow port; 12. Inner end plate; 13. Outer end plate; 14. Telescopic spring column; 15. Vibrating contact plate; 16. Piston; 17. Internal pressure nozzle; 18. Traction drive motor; 19. Traction plate; 20. Guide rail; 21. Traction column; 22. Suspension ring; 23. Cutting rod; 24. Extrusion hole; 25. Built-in chassis; 26. Transmission sleeve; 27. Center helical gear; 28. Transmission gear plate. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention in specific circumstances.

[0029] Example, see Figures 1 to 7 , a material synthesis device based on ultrasound assistance, including a dynamic mixing tank body 1 and a mounting base 2, the mounting base 2 is provided with a functional mounting ring 3 around the mounting base 2, the functional mounting ring 3 is connected to the dynamic mixing tank body 1 through an upper end ring 4, the upper end ring 4 is the result of supporting the dynamic mixing tank body 1, the functional mounting ring 3 is provided with a plurality of vibration inner columns 5 controlled by an ultrasonic high-frequency vibration module, the vibration inner columns 5 penetrate into the dynamic mixing tank body 1, the dynamic mixing tank body 1 is provided with a plurality of telescopic openings, and an internal pressure impact kit is slidably connected in the telescopic openings;

[0030] Among them, the ultrasonic high-frequency vibration module is a device that uses ultrasonic technology to generate high-frequency vibration. It is an existing technology and will not be described in detail here. Furthermore, the internal pressure impact kit includes an inner sleeve 9 and an outer sleeve 10. The outer sleeve 10 is located in the telescopic opening and is sleeved on the inner sleeve 9. The inner sleeve 9 and the outer sleeve 10 are provided with corresponding overflow ports 11. The ends of the inner sleeve 9 and the outer sleeve 10 are respectively provided with an inner end plate 12 and an outer end plate 13. The inner end plate 12 and the outer end plate 13 are connected by a telescopic spring column 14, so that the inner end plate 12 and the outer end plate 13 can move between them.

[0031] It should be noted that when the inner end disc 12 moves inward under the action of the traction drive device, the outer end disc 13 connected to the outer sleeve 10 on the inner sleeve 9 will contact the outer wall of the dynamic mixing tank body 1 and thus cannot move. However, the inner end disc 12 and the outer end disc 13 are connected through the telescopic spring column 14, so that the inner end disc 12 can still move, so that the corresponding overflow port 11 that was originally misplaced is in an aligned state. At this time, the stirring material in the dynamic mixing tank body 1 will flow from the corresponding overflow port 11 into the interior of the inner sleeve 9, achieving the effect of negative pressure suction of the stirring material.

[0032] The internal pressure impact kit is sleeved on the vibrating inner column 5 and connected to the vibrating inner column 5 through a transmission vibration member. Furthermore, the transmission vibration member includes a vibrating contact plate 15 provided at the end of the vibrating inner column 5. A piston 16 is provided on the outer wall of the vibrating contact plate 15. The multiple outer sleeves 10 are each provided with an internal pressure nozzle 17. The internal pressure nozzle 17 contacts the vibrating contact plate 15 to achieve the transmission of ultrasonic high-frequency vibration. The multiple internal pressure nozzles 17 are oriented in different directions.

[0033] The advantage of adopting the above structure is that when the internal pressure impact kit is driven to move from the inside to the outside of the dynamic mixing tank body 1 under the action of the traction drive device, the pressure on the outer end plate 13 will be released first, and under the action of the telescopic spring column 14, the outer sleeve 10 and the inner sleeve 9 will be reset, so that the corresponding overflow ports 11 that were originally opened are closed to each other. At this time, the stirring material inside the moving inner sleeve 9 will be squeezed by the piston 16 set on the vibrating contact plate 15, and then ejected outward at high pressure under the action of the internal pressure nozzle 17, so as to achieve the effect of continuous stirring and mixing with the stirring material in the dynamic mixing tank body 1.

[0034] The functional mounting ring 3 is provided with a traction drive device that drives multiple internal pressure impact kits to reciprocate;

[0035] Furthermore, the traction drive device includes a traction drive motor 18 arranged on the functional mounting ring 3, a traction disc 19 is rotatably provided on the inner side wall of the functional mounting ring 3, a drive gear ring is provided at the bottom of the traction disc 19, the output end of the traction drive motor 18 is meshed and connected with the drive gear ring through a drive gear, a guide track 20 is provided on the traction disc 19, and a traction column 21 is fixedly connected to the inner end disc 12, the bottom of the traction column 21 is located in the guide track 20, and moves back and forth according to the trajectory of the guide track 20.

[0036] A stirring outer tube 6 is rotatably provided at the bottom of the dynamic mixing tank body 1, and a shear stress cutting piece is provided on the outer wall of the stirring outer tube 6. Furthermore, the shear stress cutting piece includes a suspended ring 22 connected to the inner wall of the dynamic mixing tank body 1 through multiple support rods, and a plurality of cutting rods 23 tightly fitted on the stirring outer tube 6 are provided at the bottom of the suspended ring 22, and the outer wall of the top of the stirring outer tube 6 is densely covered with extrusion holes 24.

[0037] The interior of the stirring outer tube 6 is hollow, and a conveying shaft 7 is provided inside. A spiral conveying blade 8 is provided outside the conveying shaft 7. A stirring motor is provided at the bottom of the mounting base 2. The stirring motor drives the stirring outer tube 6 and the conveying shaft 7 to rotate respectively through a transmission assembly.

[0038] Among them, under the action of the transmission component, the rotation directions between the stirring outer pipe 6 and the conveying shaft 7 are opposite, thereby ensuring that the conveying shaft 7 can convey the material from the bottom to the top for mixing.

[0039] Furthermore, a built-in chassis 25 is rotatably provided at the bottom of the dynamic mixing tank body 1, and the built-in chassis 25 is connected to the stirring outer pipe 6 through multiple connecting columns. A transmission sleeve 26 is provided at the bottom of the built-in chassis 25, which extends outward through the side wall of the dynamic mixing tank body 1. The transmission assembly includes a central helical gear 27 connected to the output end of the stirring motor. The upper and lower ends of the central helical gear 27 are respectively meshed and connected to two transmission gear discs 28. The transmission gear disc 28 located above is connected to the transmission sleeve 26, and the conveying shaft 7 extends downward through the transmission sleeve 26 and is fixedly connected to the transmission gear disc 28 located below.

[0040] When the polyimide-based composite material is mixed, the polyimide-based composite material is efficiently mixed in the dynamic mixing tank body 1. Specifically, the stirring motor and the traction drive motor 18 are synchronously turned on. Under the action of the stirring motor, the output end thereof rotates through the central bevel gear 27, driving the transmission gear plate 28 meshing with the two sides thereof to rotate, thereby realizing the reverse rotation of the conveying shaft 7 and the transmission sleeve 26. During this process, the rotation of the conveying shaft 7 drives the spiral conveying blade 8 connected thereto to rotate continuously, thereby realizing the continuous upward conveying of the stirred polyimide-based composite material in the gap between the built-in chassis 25 and the stirring outer pipe 6, and extruding it outward through the extrusion hole 24 on the stirring outer pipe 6. The rotation of the stirring outer pipe 6 causes the extruded material to be continuously cut and mixed by the cutting rod 23, thereby achieving the effect of mixing the stirred polyimide-based composite material up and down and shear stress cutting and stirring it.

[0041] At the same time, multiple internal pressure impact kits arranged around the periphery are used to mix the polyimide-based composite material synchronously. The traction disc 19 rotates under the action of the traction drive motor 18. During the rotation, the guide rail 20 arranged thereon drives the traction column 21 to drive the inner end disc 12 connected thereto to move back and forth. In this process, the outer sleeve 10 and the inner sleeve 9 are reset, so that the corresponding overflow ports 11 that were originally opened are closed to each other. At this time, the stirring material inside the moving inner sleeve 9 is squeezed by the piston 16 arranged on the vibrating contact disc 15, thereby being ejected outward at high pressure under the action of the internal pressure nozzle 17. Out, and the angles of injection are different, so as to achieve the effect of continuous stirring and mixing with the stirring material in the dynamic mixing tank 1, and when the internal pressure nozzle 17 contacts the vibration touch plate 15 at the end of the vibration inner column 5, the ultrasonic high-frequency vibration module will transmit the vibration to the polyimide-based composite material through the internal pressure nozzle 17, and use multiple ultrasonic vibrations with different vibration directions to enhance the uniform dispersion of the phase in the polyimide solution. A dynamic mixing device is introduced into the equipment to work synergistically with ultrasonic assistance to improve the dispersion efficiency of the nano-reinforced material, realize the switching between high shear and low shear modes, and adapt to the mixing requirements of different polymerization stages.

[0042] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A material synthesis device based on ultrasound assistance, comprising a dynamic mixing tank (1) and a mounting seat (2), characterized in that: The mounting seat (2) is provided with a functional mounting ring (3) around it, and the functional mounting ring (3) is connected to the dynamic mixing tank body (1) through the upper end ring (4), and a plurality of vibration inner columns (5) controlled by an ultrasonic high-frequency vibration module are provided on the functional mounting ring (3), and the vibration inner columns (5) penetrate into the dynamic mixing tank body (1), and a plurality of telescopic openings are provided on the dynamic mixing tank body (1), and an internal pressure impact kit is slidably connected in the telescopic openings, and the internal pressure impact kit is sleeved on the vibration inner column (5) and connected to the vibration inner column (5) through a vibration transmission member, and the functional mounting ring (3) is provided with a traction drive device for driving the plurality of internal pressure impact kits to move back and forth; The bottom of the dynamic mixing tank (1) is provided with a stirring outer tube (6) for rotation, the outer side wall of the stirring outer tube (6) is provided with a shear stress cutter, the interior of the stirring outer tube (6) is hollow, and a conveying shaft (7) is provided inside, and a spiral conveying blade (8) is provided outside the conveying shaft (7), and a stirring motor is provided at the bottom of the mounting seat (2), and the stirring motor drives the stirring outer tube (6) and the conveying shaft (7) to rotate respectively through a transmission assembly.

2. The ultrasonic-assisted material synthesis device according to claim 1, characterized in that: The internal pressure impact kit comprises an inner sleeve (9) and an outer sleeve (10), wherein the outer sleeve (10) is located in the telescopic opening and is sleeved on the inner sleeve (9), and the inner sleeve (9) and the outer sleeve (10) are provided with corresponding overflow ports (11) adapted to each other, and the ends of the inner sleeve (9) and the outer sleeve (10) are respectively provided with an inner end plate (12) and an outer end plate (13), and the inner end plate (12) and the outer end plate (13) are connected via a telescopic spring column (14).

3. The ultrasonic-assisted material synthesis device according to claim 2, characterized in that: The transmission vibration member includes a vibration contact plate (15) arranged at the end of the vibration inner column (5), a piston (16) is arranged on the outer wall of the vibration contact plate (15), and multiple outer sleeves (10) are each provided with an internal pressure nozzle (17). The internal pressure nozzle (17) contacts the vibration contact plate (15) and can realize the transmission of ultrasonic high-frequency vibration. The multiple internal pressure nozzles (17) have different directions.

4. The ultrasonic-assisted material synthesis device according to claim 3, characterized in that: The traction drive device comprises a traction drive motor (18) arranged on a functional mounting ring (3); a traction disc (19) is rotatably arranged on the inner side wall of the functional mounting ring (3); a driving gear ring is arranged at the bottom of the traction disc (19); and an output end of the traction drive motor (18) is meshedly connected with the driving gear ring through a driving gear.

5. The ultrasound-assisted material synthesis device according to claim 4, characterized in that: A guide rail (20) is provided on the traction disc (19), and a traction column (21) is fixedly connected to the inner end disc (12). The bottom of the traction column (21) is located in the guide rail (20) and reciprocates according to the track of the guide rail (20).

6. The ultrasound-assisted material synthesis device according to claim 1, characterized in that: The shear stress cutting piece comprises a suspended ring (22) connected to the inner wall of the dynamic mixing tank (1) via a plurality of supporting rods, a plurality of cutting rods (23) tightly fitted on the stirring outer pipe (6) are provided at the bottom of the suspended ring (22), and extrusion holes (24) are densely distributed on the outer side wall of the top of the stirring outer pipe (6).

7. The ultrasound-assisted material synthesis device according to claim 1, characterized in that: The bottom of the dynamic mixing tank (1) is rotatably provided with a built-in chassis (25), the built-in chassis (25) being connected to the stirring outer pipe (6) via a plurality of connecting columns, and the bottom of the built-in chassis (25) is provided with a transmission sleeve (26) extending outward through the side wall of the dynamic mixing tank (1).

8. The ultrasound-assisted material synthesis device according to claim 7, characterized in that: The transmission assembly includes a central helical gear (27) connected to the output end of the stirring motor, and the upper and lower ends of the central helical gear (27) are respectively meshed and connected with two transmission toothed discs (28), the transmission toothed disc (28) located on the upper side is connected to the transmission sleeve (26), and the conveying shaft (7) passes through the transmission sleeve (26) and extends downward, and is fixedly connected to the transmission toothed disc (28) located on the lower side.

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