Gas-soluble conductive silver paste preparation device

Abstract

The invention belongs to the technical field of conductive silver paste preparation, and particularly relates to a gas-soluble conductive silver paste preparation device which comprises a gasification reaction device, an aerosol preparation device is fixedly connected to the upper surface of the gasification reaction device, and a connecting pipe is rotatably connected to the lower surface of the aerosol preparation device. The connecting pipe penetrates into the gasification reaction device, a transmission structure is arranged on the outer circle face of the connecting pipe, and a screening assembly is arranged on one side of the upper surface of the gasification reaction device. Through cooperation of a transmission structure, a first bevel gear, a circular plate and a connecting rod, a push plate is driven to move up and down in a gas collection cylinder, air is fed into the gasification reaction device, meanwhile, a molecular sieve membrane exhausts oxygen in the gas collection cylinder, the content of oxygen entering the gasification reaction device is reduced, excessive oxygen is prevented from entering the gasification reaction device, and the gasification effect is improved. The preparation of the conductive silver paste by the device is influenced, and the yield of the conductive silver paste prepared by the device is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of conductive silver paste preparation, and specifically relates to an aerosol-type conductive silver paste preparation device. Background Art

[0002] Conductive silver paste is a paste mainly composed of silver powder, which is made by mixing with materials such as resin, solvent, and binder. It has excellent electrical conductivity and stability. It is printed or coated on a substrate and forms a conductive layer after curing or sintering, and is widely used in fields such as electronics, solar cells, and touch screens. Common methods for preparing conductive silver paste include physical methods, chemical methods, biological methods, etc. Among them, the preparation of conductive silver paste by gas-phase reaction has the advantages of no need for organic solvents, low cost, high efficiency, etc., which can greatly reduce the preparation cost and environmental pollution. At present, the methods for preparing conductive silver paste by gas-phase reaction include gas-phase reduction method, gas-phase deposition method, aerosol method, etc. Among them, the aerosol method has gradually become an important method for preparing conductive silver paste due to its advantages in controllability and cost-effectiveness.

[0003] A Chinese patent with the publication number CN116168897B discloses an aerosol-type conductive silver paste preparation device and its preparation method. This technology proposes to make a uniform sol of silver powder, organic solvent, and surfactant through an ultrasonic instrument, and then spray the prepared silver sol into silver particles through a sol spraying device. During the spraying process, the organic solvent and surfactant will volatilize, leaving only silver particles suspended in the inner cavity of the gasification reaction device to form an aerosol. Then, through the gasification reaction device, the silver sol is brought into contact with air, and at the same time, the electromagnetic heat treatment coil is started to work to increase the temperature in the inner cavity of the gasification reaction device, so that the silver sol reacts with air to form conductive silver paste.

[0004] In the current prior art, a uniform silver sol is made by mixing silver powder, organic solvent, and surfactant, and then the silver sol is brought into contact with air to react to form conductive silver paste. However, in the prior art, air is directly pumped into the device to contact the silver sol and react. An appropriate amount of oxygen will cause the silver particles to react with the organic substances in the conductive medium, which helps to improve the electrical conductivity of the conductive silver paste. However, too high an oxygen content will cause incomplete sintering of the silver particles and too short a sintering time, thus affecting the stability of the conductive silver paste. Moreover, oxygen will react with the silver particles to form compounds insoluble in the medium, resulting in a decrease in electrical conductivity and even causing corrosion and failure. This reduces the yield rate of the device for preparing conductive silver paste. Therefore, the present invention provides an aerosol-type conductive silver paste preparation device. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: An aerosol-type conductive silver paste preparation device described in the present invention includes a gasification reaction device. The upper surface of the gasification reaction device is fixedly connected with an aerosol preparation device. The lower surface of the aerosol preparation device is rotationally connected with a connecting pipe, and the connecting pipe penetrates into the interior of the gasification reaction device. A transmission structure is arranged on the outer circumferential surface of the connecting pipe. On one side of the upper surface of the gasification reaction device, a screening component is arranged. The screening component includes a gas collecting cylinder fixedly connected to one side of the upper surface of the gasification reaction device. A baffle is fixedly connected to the upper side of the inner wall of the gas collecting cylinder. A push plate is hermetically slidably connected inside the gas collecting cylinder. A first straight rod is fixedly connected to the upper surface of the push plate, and the upper end of the first straight rod penetrates through the central position of the baffle and is fixedly connected to a fixing plate. A plurality of uniformly distributed first through holes are formed in the upper surface of the push plate, and a molecular sieve membrane is arranged inside the push plate. An air inlet hole extending into the interior of the gasification reaction device is formed in one side of the lower end of the inner wall of the gas collecting cylinder. An air suction pipe is fixedly connected to the lower side of one side of the outer circumferential surface of the gas collecting cylinder, and a first one-way valve is arranged inside both the air inlet hole and the air suction pipe. One end of the air suction pipe is inserted with a dust-proof cover, and a filter screen is arranged on one side of the dust-proof cover; A fixing seat is fixedly connected to the upper surface of the gasification reaction device at a position between the connecting pipe and the gas collecting cylinder. A circular plate is rotationally connected to one side of the outer surface of the fixing seat close to the gas collecting cylinder. A fixing rotating shaft is fixedly connected to a position on the outer surface of the circular plate away from the center of the circle. A connecting rod is rotationally connected to the outer surface of the fixing rotating shaft, and the other end of the connecting rod is rotationally connected to the lower surface of the fixing plate. One side of the fixing rotating shaft penetrates through the fixing seat and is fixedly connected to a first bevel gear, and the first bevel gear is movably connected to the transmission structure; Preferably, the transmission structure includes a third bevel gear fixedly connected to the outer circumferential surface of the connecting pipe, and the third bevel gear is meshed with the first bevel gear. A motor is fixedly connected to one side of the upper surface of the gasification reaction device away from the fixing seat. A second bevel gear is fixedly connected to the output end of the motor, and the second bevel gear is meshed with the third bevel gear. A spraying box is fixedly connected to the lower end of the connecting pipe, and a plurality of uniformly distributed nozzles are formed in the outer circumferential surface of the spraying box. A stirring structure is arranged on the lower surface of the spraying box. A pressure relief pipe is fixedly connected to one side of the upper surface of the gasification reaction device close to the motor, and a pressure detector is arranged on one side of the upper surface of the gasification reaction device close to the pressure relief pipe; Preferably, the baffle closes the upper end of the gas collecting cylinder. A detection component is arranged on one side of the outer circumferential surface of the gas collecting cylinder. The detection component includes an exhaust pipe fixedly connected to the upper side of one side of the outer circumferential surface of the gas collecting cylinder, and the exhaust pipe is close to the lower surface of the baffle. A gas flow detector is arranged on one side inside the exhaust pipe. A second one-way valve is arranged on the side inside the exhaust pipe away from the gas collecting cylinder. Four uniformly distributed exhaust holes are formed in the outer circumferential surface of the exhaust pipe close to the second one-way valve; Preferably, a replacement component is provided between the gasification reaction device and the gas collecting cylinder. The replacement component includes a fixed sliding groove fixedly connected to the upper surface of the gasification reaction device at the position of the gas collecting cylinder, and the gas collecting cylinder is located at the middle position of the upper surface of the fixed sliding groove. A sliding plate is slidably connected inside the fixed sliding groove. Two placement grooves are provided on the upper surface of the sliding plate, and third through holes are provided at positions corresponding to the lower ends of the inner walls of the two placement grooves and the air inlet holes. A replacement plate is provided below the push plate. A cylindrical block is fixedly connected to the center position of the lower surface of the push plate. Four uniformly distributed second card slots are provided on the outer circular surface of the cylindrical block. A fixing hole is provided at the center position of the upper surface of the replacement plate. A circular groove is provided at the center position of the lower surface of the replacement plate. Four uniformly distributed sector-shaped grooves are provided around the fixing hole on the upper surface of the replacement plate, and the molecular sieve membrane is located inside the four sector-shaped grooves. Fourth through holes are uniformly provided at the lower ends of the inner walls of the sector-shaped grooves. Four uniformly distributed third sliding grooves are jointly provided on one side of the inner walls of the fixing hole and the circular groove. Four U-shaped sliders are slidably connected inside the four third sliding grooves. A fourth spring is provided on the outer surface of each of the four U-shaped sliders on the side away from the fixing hole. A sliding hole is provided at the center position of the lower end of each of the two placement grooves. A sliding column is slidably connected inside each of the two sliding holes. Fourth sliding grooves are provided at the lower ends of the inner walls of the two sliding holes. A square sliding rod is slidably connected inside each of the two fourth sliding grooves, and the two square sliding rods are fixedly connected together. Trapezoidal grooves are provided on the upper surfaces of the two square sliding rods, and the lower surface of the sliding column meshes with the trapezoidal groove. Circular straight rods are fixedly connected to the outer surfaces of the two square sliding rods on the sides away from each other, and the two circular straight rods penetrate through the outer surface of the sliding plate. Sliding insertion rods are provided at positions on both sides of the outer surface of the fixed sliding groove corresponding to the two circular straight rods, and the two sliding insertion rods are slidably connected to the fixed sliding groove; Preferably, fifth sliding grooves are provided at positions corresponding to the four third sliding grooves on the outer circular surface of the replacement plate. Four blocks are slidably connected inside the four fifth sliding grooves. Third rack bars are fixedly connected to the outer surfaces of the four blocks on the sides close to the third sliding grooves. Second rack bars are fixedly connected to the upper sides of the outer surfaces of the four U-shaped sliders on the sides away from the fixing hole. Second gears are rotatably connected between the second rack bars and the third rack bars, and the second gears are meshed with both the second rack bars and the third rack bars. Third card slots are provided at positions on the lower sides of the inner walls of the push plate corresponding to the blocks; Preferably, arc-shaped connecting plates are provided on both sides of the upper surface of the fixed sliding groove close to the outer circular surface of the gas collecting cylinder. Fixed blocking columns are fixedly connected to both sides of the lower surfaces of the two arc-shaped connecting plates, and the lower ends of the two fixed blocking columns penetrate into the fixed sliding groove. Limiting plates are fixedly connected to the outer circular surface of the gas collecting cylinder above the two arc-shaped connecting plates; Preferably, a sealing assembly is provided on the outer circumferential surface of the first straight rod. The sealing assembly includes a sleeve sleeved on the outer circumferential surface of the first straight rod. Moreover, a cover plate is fixedly connected to the lower end of the sleeve, and the lower surface of the cover plate is in contact with the upper surface of the push plate. A plurality of uniformly distributed second through holes are formed on the upper surface of the cover plate. A lower gear set is fixedly connected to the lower end of the outer circumferential surface of the sleeve, and an upper gear set is fixedly connected to the upper end of the outer circumferential surface of the sleeve. Both the lower gear set and the upper gear set are provided with twelve tooth blocks evenly distributed in a ring. One side of the lower surface of the baffle is fixedly connected with a lower push block, and one side of the upper surface of the baffle is fixedly connected with an upper push block. An annular limit is fixedly connected to the upper surface of the push plate, and the vertical cross-section of the annular limit is L-shaped. The outer side of the cover plate is located inside the annular limit; Preferably, a locking assembly is provided inside the sleeve. The locking assembly includes first chutes opened on both sides of the upper surface of the sleeve. Two first sliding rods are slidably connected inside the two first chutes respectively. Twenty-four first clamping grooves evenly distributed in a ring are formed at the position above the sleeve on the lower surface of the fixing plate. Second springs are arranged at the lower ends of the two first sliding rods respectively. L-shaped chutes are opened at the lower ends of the inner walls of the two first chutes. Two L-shaped sliding rods are slidably connected inside the two L-shaped chutes respectively. One ends of the two L-shaped sliding rods both pass through the second springs and are fixedly connected to the lower ends of the first sliding rods. The other ends of the two L-shaped sliding rods penetrate through the outer surface of the sleeve; Preferably, rack-shaped grooves are formed on one side of the outer surfaces of the two first sliding rods respectively. Second chutes are opened on one side of the inner walls of the two first chutes close to the rack-shaped grooves. Two first racks are slidably connected inside the two second chutes respectively. First gears are rotatably connected at the positions between the rack-shaped grooves and the first racks inside the second chutes. The first gears are meshed with both the rack-shaped grooves and the first racks. Push rods penetrating through the outer surface of the sleeve are fixedly connected to one side of the outer surfaces of the two first racks respectively. Annular grooves are formed at the positions close to the sleeve on the upper and lower surfaces of the baffle, and both the two annular grooves wrap the sleeve; Preferably, a start-stop assembly is provided inside the fixed seat. The start-stop assembly includes an installation groove opened inside the fixed seat. A first meshing block is rotatably connected to one side inside the installation groove, and the first meshing block is fixedly connected to the first bevel gear. A fixed block is rotatably connected to the other side inside the installation groove, and the fixed block is fixedly connected to the circular plate. A second meshing block is rotatably connected between the first meshing block and the fixed block inside the installation groove. The first meshing block is meshed with the second meshing block. A third spring is arranged between the fixed block and the second meshing block. A square straight rod is fixedly connected to one side of the outer surface of the fixed block. A square chute is opened on one side of the outer surface of the second meshing block close to the fixed block. The square straight rod is slidably connected inside the square chute. A communication hole is opened on one side of the inner wall of the installation groove close to the first meshing block, and the communication hole penetrates into the gasification reaction device;

[0007] The beneficial effects of the present invention are as follows: 1. For the aerosol-type conductive silver paste preparation device of the present invention, through the cooperation of a transmission structure, a first bevel gear, a circular plate, a connecting rod, etc., the push plate is driven to move up and down in the air collection cylinder, sending air into the gasification reaction device. At the same time, through the cooperation of the first through hole and the molecular sieve membrane, the oxygen inside the air collection cylinder is discharged, reducing the oxygen content entering the gasification reaction device, preventing too much oxygen from entering the gasification reaction device, affecting the preparation of conductive silver paste by this device, and improving the yield rate of the conductive silver paste prepared by this device. And through the setting of the first one-way valve, the gas in the gasification reaction device is prevented from flowing back into the air collection cylinder, ensuring that the air collection cylinder continuously conveys gas to the inside of the gasification reaction device; 2. For the aerosol-type conductive silver paste preparation device of the present invention, through the cooperation of a sliding plate, a placement groove, a replacement plate, etc., when the molecular sieve membrane is damaged or blocked, first place the new replacement plate inside the placement groove on one side, and then drive the old replacement plate to move down into the placement groove on the other side by the downward movement of the push plate. At the same time, the fixation between the old replacement plate and the push plate is released through the sliding column, and then the push plate moves upward and then pushes the sliding plate to move the new replacement plate below the push plate. When the push plate moves downward, the new replacement plate and the push plate are fixed, completing the replacement of the new replacement plate. And through the setting of the replacement component, when the screening component is working, the replacement plate can be quickly replaced without stopping the screening component, ensuring the normal operation and service life of the screening component; 3. For the aerosol-type conductive silver paste preparation device of the present invention, through the cooperation of the internal air pressure of the gasification reaction device and the third spring, when the force applied to the air pressure second engaging block is greater than the force applied to the second engaging block by the third spring, the air pressure pushes the second engaging block to separate from the first engaging block, stopping the gas supply to the inside of the gasification reaction device. When the force applied to the air pressure second engaging block is less than the force applied to the second engaging block by the third spring, the second engaging block is pushed by the third spring to engage with the first engaging block, and the gas supply to the inside of the gasification reaction device continues. This enables the air collection cylinder to determine whether to continue supplying gas to the inside of the gasification reaction device according to the gas content inside the gasification reaction device, ensuring that the gas content inside the gasification reaction device is within a stable range, and guaranteeing the preparation efficiency of the conductive silver paste by this device. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The present invention will be further described below with reference to the accompanying drawings.

[0009] Figure 1 is the three-dimensional view of the present invention; Figure 2 is the cross-sectional view of the present invention; Figure 3 is the cross-sectional view of the air collection cylinder in the present invention; Figure 4It is a schematic structural diagram of the push plate in the present invention; Figure 5 It is a cross-sectional view of the sliding plate in the present invention; Figure 6 It is a cross-sectional view of the replacement plate in the present invention; Figure 7 It is a schematic structural diagram of the fixed chute in the present invention; Figure 8 It is a schematic structural diagram of the sleeve in the present invention; Figure 9 It is a cross-sectional view of the sleeve in the present invention; Figure 10 It is a schematic structural diagram of the first sliding rod in the present invention; Figure 11 It is a cross-sectional view of the fixed seat in the present invention; Figure 12 It is a schematic structural diagram of the second engaging block in the present invention; In the figure: 1. Gasification reaction device; 2. Aerosol preparation device; 3. Gas collecting cylinder; 31. Baffle; 32. First straight rod; 33. Pusher plate; 34. Air inlet hole; 35. Suction pipe; 36. First through hole; 37. Molecular sieve membrane; 38. Fixed plate; 39. Fixed seat; 310. First bevel gear; 311. Circular plate; 312. Fixed rotating shaft; 313. Connecting rod; 314. Pressure relief pipe; 315. First one-way valve; 316. Dust-proof cover; 4. Exhaust pipe; 41. Gas flow detector; 42. Second one-way valve; 43. Exhaust hole; 5. Sleeve; 51. Cover plate; 52. Second through hole; 53. Lower gear tooth group; 54. Lower push block; 55. Upper gear tooth group; 56. Upper push block; 57. Annular limit; 6. First chute; 61. First slide bar; 62. First card slot; 63. L-shaped chute; 64. L-shaped slide bar; 65. Second spring; 66. Rack-shaped groove; 67. Second chute; 68. First rack; 69. First gear; 610. Push rod; 611. Annular groove; 7. Installation groove; 71. First meshing block; 72. Fixed block; 73. Second meshing block; 74. Third spring; 75. Square straight rod; 76. Square chute; 77. Communication hole; 8. Motor; 81. Second bevel gear; 82. Third bevel gear; 9. Fixed chute; 91. Sliding plate; 92. Placing groove; 93. Third through hole; 94. Replacement plate; 95. Sector groove; 96. Fixed hole; 97. Circular groove; 98. Third chute; 99. U-shaped slider; 910. Fourth spring; 911. Cylindrical block; 912. Second card slot; 913. Slide hole; 914. Sliding column; 915. Fourth chute; 916. Square slide bar; 917. Circular straight rod; 918. Second rack; 919. Fifth chute; 920. Third rack; 921. Block; 922. Second gear; 923. Third card slot; 924. Fourth through hole; 925. Sliding insertion rod; 926. Fixed stop post; 927. Arc-shaped connecting plate; 928. Limiting plate; 10. Connecting pipe; 11. Spraying box. Detailed implementation manners

[0010] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0011] As Figures 1 to 12As shown in the figure, a preparation device for aerosol-type conductive silver paste according to an embodiment of the present invention includes a gasification reaction device 1. Aerosol preparation device 2 is fixedly connected to the upper surface of the gasification reaction device 1. A connecting pipe 10 is rotatably connected to the lower surface of the aerosol preparation device 2, and the connecting pipe 10 penetrates into the gasification reaction device 1. A transmission structure is arranged on the outer circumferential surface of the connecting pipe 10. A screening assembly is arranged on one side of the upper surface of the gasification reaction device 1. The screening assembly includes a gas collection cylinder 3 fixedly connected to one side of the upper surface of the gasification reaction device 1. A baffle 31 is fixedly connected to the upper side of the inner wall of the gas collection cylinder 3. A push plate 33 is hermetically slidably connected inside the gas collection cylinder 3. A first straight rod 32 is fixedly connected to the upper surface of the push plate 33, and the upper end of the first straight rod 32 penetrates through the center of the baffle 31 and is fixedly connected to a fixing plate 38. A plurality of uniformly distributed first through holes 36 are formed in the upper surface of the push plate 33, and a molecular sieve membrane 37 is arranged inside the push plate 33. An air inlet hole 34 extending into the gasification reaction device 1 is formed in one side of the lower end of the inner wall of the gas collection cylinder 3. An air suction pipe 35 is fixedly connected to the lower side of one side of the outer circumferential surface of the gas collection cylinder 3, and a first one-way valve 315 is arranged inside both the air inlet hole 34 and the air suction pipe 35. One end of the air suction pipe 35 is inserted with a dust-proof cover 316, and a filter screen is arranged on one side of the dust-proof cover 316; A fixing seat 39 is fixedly connected to the upper surface of the gasification reaction device 1 at a position between the connecting pipe 10 and the gas collection cylinder 3. A circular plate 311 is rotatably connected to one side of the outer surface of the fixing seat 39 close to the gas collection cylinder 3. A fixing rotating shaft 312 is fixedly connected to a position away from the center of the outer surface of the circular plate 311. A connecting rod 313 is rotatably connected to the outer surface of the fixing rotating shaft 312, and the other end of the connecting rod 313 is rotatably connected to the lower surface of the fixing plate 38. A first bevel gear 310 is fixedly connected to one side of the fixing rotating shaft 312 through the fixing seat 39, and the first bevel gear 310 is movably connected to the transmission structure; During operation, silver powder, organic solvent and surfactant are added into the aerosol preparation device 2 to make a uniform silver solution. Then the silver solution is sprayed into the gasification reaction device 1 through the connecting pipe 10. At the same time, the transmission structure is started to rotate the connecting pipe 10, so that the silver solution can be evenly sprayed into the gasification reaction device 1. Then air is pumped into the gasification reaction device 1, and at the same time, the gasification reaction device 1 is started to make the silver sol react with the air to form conductive silver paste. However, the oxygen in the air will react with the silver particles to form compounds insoluble in the medium, resulting in a decrease in conductivity and even causing corrosion and failure.

[0012] Therefore, when the transmission structure works, it drives the first bevel gear 310 to rotate simultaneously, thereby driving the circular plate 311 and the fixed rotating shaft 312 to rotate simultaneously. When the fixed rotating shaft 312 rotates, the connecting rod 313 is used to pull the fixed plate 38 to move up and down reciprocally, and then the first straight rod 32 drives the push plate 33 to move up and down reciprocally simultaneously. When the push plate 33 moves upward, the first one-way valve 315 in the air inlet hole 34 prevents the gas in the gasification reaction device 1 from entering the gas collection cylinder 3, so that the external air is sucked into the gas collection cylinder 3 through the suction pipe 35. When the push plate 33 moves downward, the air in the gas collection cylinder 3 is compressed by the push plate 33, and at the same time, it passes through the first through hole 36 and the molecular sieve membrane 37. The aperture of the molecular sieve membrane 37 is larger than the diameter of oxygen molecules and smaller than the diameter of nitrogen molecules, so that most of the oxygen in the air in the gas collection cylinder 3 is excluded, and at the same time, the air pressure in the gas collection cylinder 3 is increased, thereby triggering the first one-way valve 315, so that the nitrogen in the air enters the gasification reaction device 1 through the air inlet hole 34, thereby preventing too much oxygen from entering the gasification reaction device 1 and affecting the preparation of the conductive silver paste by the device, and improving the yield of the device for preparing the conductive silver paste.

[0013] It should be noted that the gasification reaction device 1 and the aerosol preparation device 2 described in the embodiments of the present invention are both prior arts. The silver powder, organic solvent and surfactant are added into the aerosol preparation device 2 through feeding, and then the silver powder, organic solvent and surfactant are formed into a uniform silver solution by an ultrasonic instrument, and then the silver solution is added into the gasification reaction device 1 through the connecting pipe 10, and then the electromagnetic heat treatment coil is started to increase the temperature in the inner cavity of the gasification reaction device 1, so as to heat the silver solution and the gas, and thus facilitate the preparation of the conductive silver paste.

[0014] As Figures 1 to 2 shown, the transmission structure includes a third bevel gear 82 fixedly connected to the outer cylindrical surface of the connecting pipe 10, and the third bevel gear 82 is meshed with the first bevel gear 310. On one side of the upper surface of the gasification reaction device 1 away from the fixed seat 39, a motor 8 is fixedly connected. The output end of the motor 8 is fixedly connected with a second bevel gear 81, and the second bevel gear 81 is meshed with the third bevel gear 82. The lower end of the connecting pipe 10 is fixedly connected with a spraying box 11, and a plurality of uniformly distributed nozzles are arranged on the outer cylindrical surface of the spraying box 11. A stirring structure is arranged on the lower surface of the spraying box 11. On one side of the upper surface of the gasification reaction device 1 close to the motor 8, a pressure relief pipe 314 is fixedly connected, and a pressure detector is arranged on one side of the upper surface of the gasification reaction device 1 close to the pressure relief pipe 314; During operation, when the silver solution enters the gasification reaction device 1 through the connecting pipe 10, the motor 8 is started to drive the second bevel gear 81 to rotate, and then the connecting pipe 10 is driven to rotate through the third bevel gear 82, thereby driving the spraying box 11 and the nozzles on the spraying box 11 to rotate, spraying the silver solution evenly inside the gasification reaction device 1, enabling the silver solution to fully contact the gas, and at the same time driving the stirring structure to rotate to stir the silver solution, making the silver solution evenly heated. And the rotation of the third bevel gear 82 drives the first bevel gear 310 to rotate, thereby driving the screening assembly to work, reducing the oxygen content entering the gasification reaction device 1. After the gas enters the gasification reaction device 1 through the screening assembly, the air pressure inside the gasification reaction device 1 increases. The air pressure inside the gasification reaction device 1 is monitored by the air pressure detector. When the air pressure rises to a certain extent, the pressure relief pipe 314 is opened, enabling the high-pressure gas to be discharged through the pressure relief pipe 314, reducing the air pressure inside the gasification reaction device 1 and ensuring the safe use of the gasification reaction device 1.

[0015] As Figures 2 to 4 shown, the baffle 31 closes the upper end of the gas collecting cylinder 3. A detection assembly is arranged on one side of the outer cylindrical surface of the gas collecting cylinder 3. The detection assembly includes an exhaust pipe 4 fixedly connected to the upper side of one side of the outer cylindrical surface of the gas collecting cylinder 3, and the exhaust pipe 4 is close to the lower surface of the baffle 31. A gas flow detector 41 is arranged on one side inside the exhaust pipe 4. A second one-way valve 42 is arranged on the side of the exhaust pipe 4 away from the gas collecting cylinder 3 and away from the gas flow detector 41. Four evenly distributed exhaust holes 43 are formed in the outer cylindrical surface of the exhaust pipe 4 near the second one-way valve 42; During operation, when the push plate 33 moves downward, the gas is sent into the gasification reaction device 1, and at the same time the oxygen is discharged above the push plate 33. When the push plate 33 moves upward, the oxygen above the push plate 33 inside the gas collecting cylinder 3 is discharged through the exhaust pipe 4, and at the same time the gas flow detector 41 is started, and the gas flow detector 41 detects the oxygen flow discharged from the exhaust pipe 4. Because the moving path of the push plate 33 up and down is fixed, when the molecular sieve membrane 37 is intact, the gas flow passing through the exhaust pipe 4 each time is within a stable range. When the molecular sieve membrane 37 is damaged or blocked, the gas flow discharged from the exhaust pipe 4 will fluctuate greatly. Therefore, when the data detected by the gas flow detector 41 fluctuates greatly, it can be judged whether the molecular sieve membrane 37 is damaged or blocked, so as to timely notify the personnel for repair, thus ensuring the normal use of the screening assembly. And through the cooperation of the second one-way valve 42 and the exhaust holes 43, it prevents external gas from entering the gas collecting cylinder 3 through the exhaust pipe 4, ensuring the accuracy of the gas flow detected by the gas flow detector 41 flowing through the exhaust pipe 4.

[0016] As Figures 3 to 7As shown, a replacement component is provided between the gasification reaction device 1 and the gas collecting cylinder 3, and the replacement component includes a fixed chute 9 fixedly connected to the upper surface of the gasification reaction device 1 at the position of the gas collecting cylinder 3, and the gas collecting cylinder 3 is located in the middle position of the upper surface of the fixed chute 9, and a sliding plate 91 is slidably connected inside the fixed chute 9, and two placement grooves 92 are provided on the upper surface of the sliding plate 91, and three through holes 93 are provided at the lower ends of the inner walls of the two placement grooves 92 corresponding to the air inlet 34, and a replacement plate 94 is provided below the push plate 33, and the push plate A cylindrical block 911 is fixedly connected to the center of the lower surface of 33, and the outer surface of the cylindrical block 911 is provided with four evenly distributed second slots 912. A fixing hole 96 is provided at the center of the upper surface of the replacement plate 94, and a circular groove 97 is provided at the center of the lower surface of the replacement plate 94. Four evenly distributed fan-shaped grooves 95 are provided on the upper surface of the replacement plate 94 around the fixing hole 96, and the molecular sieve membrane 37 is located inside the four fan-shaped grooves 95. The lower end of the inner wall of the fan-shaped groove 95 is provided with evenly distributed fourth through holes 924. The fixed hole 96 and the circular groove 97 have four evenly distributed No. 3 slide grooves 98 on one side of the inner wall. The four No. 3 slide grooves 98 are all slidably connected with U-shaped sliders 99. The outer surface of the four U-shaped sliders 99 is provided with a No. 4 spring 910 on the side away from the fixed hole 96. The two placement grooves 92 have a sliding hole 913 at the center of the lower end of the inner wall. The two sliding holes 913 are slidably connected with sliding columns 914. The lower ends of the two inner walls have a No. 4 slide groove 915. The two No. 4 slide grooves 915 are slidably connected with Square slide bar 916, and two square slide bars 916 are fixedly connected together, the upper surface of each square slide bar 916 is provided with a trapezoidal groove, and the lower surface of the sliding column 914 is engaged with the trapezoidal groove, the outer surfaces of the two square slide bars 916 are fixedly connected to the side away from each other, and the two round straight rods 917 pass through the outer surface of the sliding plate 91, and the outer surfaces of the fixed slide 9 are opposite to the two round straight rods 917. Sliding rods 925 are provided at positions opposite to the two round straight rods 917 on both sides of the outer surface, and the two sliding rods 925 are slidably connected to the fixed slide 9; During operation, when the molecular sieve membrane 37 is damaged or blocked, first push the sliding plug rod 925 on one side, thereby pushing the circular straight rod 917 on one side to move, so that the two square sliding rods 916 move in the fourth chute 915 at the same time, and at the same time push the circular straight rod 917 on the other side out of the sliding plate 91. Through the engagement of the trapezoidal groove on the square sliding rod 916 and the lower surface of the sliding column 914, the sliding column 914 is driven to move upward in the sliding hole 913. Then, place a new replacement plate 94 into the placement groove 92 on one side, and there are marks on the placement groove 92 and the replacement plate 94. When placing the new replacement plate 94 into the placement groove 92, align the marks to facilitate the replacement of the new replacement plate 94. When the push plate 33 moves downward, it drives the replacement plate 94 to move downward at the same time, so that the old replacement plate 94 moves into the replacement plate 94 on the other side, so that the sliding column 914 is inserted into the circular groove 97, and then four U-shaped sliders 99 are pushed to move away from the fixed hole 96 in the third chute 98, so that the U-shaped sliders 99 are pulled out of the second card slot 912, thereby releasing the fixation of the cylindrical block 911 and the old replacement plate 94. Then, when the push plate 33 moves upward, the old replacement plate 94 is left in the placement groove 92 on the other side, and then the sliding plate 91 is pushed to move in the fixed chute 9, moving the new replacement plate 94 to the position in the air collecting cylinder 3, and at the same time moving the new replacement plate 94 out of the air collecting cylinder 3, and one end of the sliding plate 91 moves to one end inside the fixed chute 9, thereby pushing the circular straight rod 917 on the other side towards the sliding plate 91, and at the same time pushing the two square sliding rods 916 to move in the reverse direction, and through the engagement of the trapezoidal groove on the square sliding rod 916 and the lower surface of the sliding column 914, the sliding column 914 moves downward. Then, when the first straight rod 32 drives the push plate 33 to move downward, the cylindrical block 911 is inserted into the fixed hole 96, and then the U-shaped slider 99 is pushed towards the fixed hole 96 by the fourth spring 910, and the U-shaped slider 99 is inserted into the second card slot 912, thereby fixing the cylindrical block 911 inside the fixed hole 96, and further making the new replacement plate 94 fixedly connected to the push plate 33, completing the replacement of the new replacement plate 94. And through the setting of the replacement component, when the screening component is working, the replacement plate 94 can be quickly replaced without stopping the screening component, ensuring the normal operation and service life of the screening component.

[0017] As Figures 1 to 2As shown, the outer surface of the replacement plate 94 and the positions corresponding to the four No. 3 slide grooves 98 are all provided with No. 5 slide grooves 919, and the four No. 5 slide grooves 919 are evenly slidably connected with clamping blocks 921 inside. The outer surfaces of the four clamping blocks 921 are fixedly connected with No. 3 racks 920 at positions close to the No. 3 slide grooves 98. The upper sides of the outer surfaces of the four U-shaped sliders 99 away from the fixing holes 96 are fixedly connected with No. 2 racks 918. A No. 2 gear 922 is rotatably connected between the No. 2 rack 918 and the No. 3 rack 920, and the No. 2 gear 922 is meshed with the No. 2 rack 918 and the No. 3 rack 920. A No. 3 clamping groove 923 is provided on the lower side of the inner wall of the push plate 33 and the positions corresponding to the clamping blocks 921. During operation, when the No. 4 spring 910 pushes the U-shaped slider 99 to insert into the No. 2 slot 912, the cylindrical block 911 is fixed inside the fixing hole 96, thereby fixing the replacement plate 94 to the push plate 33, and at the same time drives the No. 2 rack 918 to move toward the fixing hole 96, and then the No. 2 gear 922 is meshed with the No. 2 rack 918 and the No. 3 rack 920, thereby driving the No. 3 rack 920 and the No. 2 rack 918 to move in opposite directions at the same time, and at the same time drives the card block 921 to move in the opposite direction away from the fixing hole 96 in the No. 5 slide groove 919, so that the card block 921 is inserted into the No. 3 slot 923, thereby further fixing the replacement plate 94 to the push plate 33, and improving the stability of the fixation between the replacement plate 94 and the push plate 33.

[0018] like Figures 6 to 7 As shown, arc-shaped connecting plates 927 are provided on both sides of the upper surface of the fixed chute 9 close to the outer circumference of the gas collecting cylinder 3, and fixed stop columns 926 are fixedly connected on both sides of the lower surfaces of the two arc-shaped connecting plates 927, and the lower ends of the two fixed stop columns 926 pass through the interior of the fixed chute 9, and the outer circumference of the gas collecting cylinder 3 located above the two arc-shaped connecting plates 927 is fixedly connected to a limit plate 928; During operation, before pushing the sliding plate 91 to move, manually push the arc-shaped connecting plate 927 on one side to move upward, and at the same time drive the two fixed stop posts 926 to move upward, releasing the restriction of the sliding plate 91, and then push the sliding plate 91, after pushing the sliding plate 91 from one end to the other end in the fixed chute 9, press the arc-shaped connecting plate 927 on the other side to move downward, and at the same time drive the two fixed stop posts 926 to move downward, thereby restricting the sliding plate 91 to one end inside the fixed chute 9, preventing the sliding plate 91 from moving inside the fixed chute 9, and ensuring the normal operation of the screening assembly. The moving range of the arc-shaped connecting plate 927 is limited by the limit plate 928 to prevent the arc-shaped connecting plate 927 and the fixed stop posts 926 from being separated from the fixed chute 9.

[0019] like Figures 4 to 9As shown, a closing component is provided on the outer cylindrical surface of the first straight rod 32. The closing component includes a sleeve 5 sleeved on the outer cylindrical surface of the first straight rod 32. Moreover, a cover plate 51 is fixedly connected to the lower end of the sleeve 5, and the lower surface of the cover plate 51 is in contact with the upper surface of the push plate 33. A plurality of uniformly distributed second through holes 52 are formed on the upper surface of the cover plate 51. A lower gear set 53 is fixedly connected to the lower end of the outer cylindrical surface of the sleeve 5, and an upper gear set 55 is fixedly connected to the upper end of the outer cylindrical surface of the sleeve 5. Both the lower gear set 53 and the upper gear set 55 are provided with twelve gear blocks evenly distributed in a ring. A lower push block 54 is fixedly connected to one side of the lower surface of the baffle 31, and an upper push block 56 is fixedly connected to one side of the upper surface of the baffle 31. An annular limit 57 is fixedly connected to the upper surface of the push plate 33, and the vertical cross-section of the annular limit 57 is L-shaped. The outer side of the cover plate 51 is located inside the annular limit 57; During operation, when the push plate 33 moves downward to the lowest position, the upper push block 56 fixed to the upper surface of the baffle 31 moves to the position of the upper gear set 55, so that the upper push block 56 is inserted into the upper gear set 55, thereby driving the upper gear set 55 to rotate, further driving the sleeve 5 to rotate, and simultaneously driving the cover plate 51 to rotate, so that the positions of the second through holes 52 and the first through holes 36 are staggered, closing the first through holes 36, preventing oxygen from being driven by the air to enter the gas collecting cylinder 3 through the first through holes 36 when the push plate 33 moves upward, increasing the oxygen concentration inside the gas collecting cylinder 3, and thus reducing the gas entering the gasification reaction device 1, improving the gas delivery efficiency of the gas collecting cylinder 3 to the gasification reaction device 1. When the push plate 33 moves upward to the highest position, the lower push block 54 is inserted into the lower gear set 53, thereby driving the lower gear set 53 to rotate, further driving the sleeve 5 and the cover plate 51 to rotate, so that the second through holes 52 coincide with the L-shaped sliding grooves 63, ensuring that oxygen is discharged through the first through holes 36 when the push plate 33 moves downward, ensuring the normal operation of the screening component. Moreover, the outer side of the cover plate 51 is restricted by the annular limit 57, preventing the cover plate 51 from warping during use, preventing oxygen from entering the first through holes 36 through the gap between the cover plate 51 and the push plate 33 and thus entering the gas collecting cylinder 3, improving the use effect of the closing component.

[0020] As Figures 8 to 10As shown, a locking component is provided inside the sleeve 5. The locking component includes a first chute 6 opened on both sides of the upper surface of the sleeve 5. A first sliding rod 61 is slidably connected inside each of the two first chutes 6. Twenty-four first clamping slots 62 are evenly distributed in a ring at a position on the lower surface of the fixing plate 38 above the sleeve 5. Second springs 65 are provided at the lower ends of the two first sliding rods 61. L-shaped chutes 63 are opened at the lower ends of the inner walls of the two first chutes 6. L-shaped sliding rods 64 are slidably connected inside the two L-shaped chutes 63. One ends of the two L-shaped sliding rods 64 pass through the second springs 65 and are fixedly connected to the lower ends of the first sliding rods 61. The other ends of the two L-shaped sliding rods 64 penetrate through the outer surface of the sleeve 5; During operation, before the push plate 33 moves upward to the uppermost end, the L-shaped sliding rod 64 is pushed to move downward in the L-shaped chute 63 through the baffle 31, thereby driving the first sliding rod 61 to move downward in the first chute 6, so that the upper end of the first sliding rod 61 is withdrawn from the inside of the first clamping slot 62, thus releasing the fixation between the sleeve 5 and the fixing plate 38, and further enabling the sleeve 5 and the cover plate 51 to rotate. When the push plate 33 moves downward and the baffle 31 moves away from the lower tooth group 53, the first sliding rod 61 is driven to move upward by the second spring 65, and the upper end of the first sliding rod 61 is inserted into the first clamping slot 62, thereby fixing the sleeve 5 and the fixing plate 38, preventing the sleeve 5 and the cover plate 51 from automatically rotating during movement, resulting in the coincidence of the second through hole 52 and the first through hole 36, and ensuring the normal use of the closing component.

[0021] As Figures 9 to 10 As shown, rack-shaped grooves 66 are opened on one side of the outer surfaces of the two first sliding rods 61. Second chutes 67 are opened on one side of the inner walls of the two first chutes 6 close to the rack-shaped grooves 66. First racks 68 are slidably connected inside the two second chutes 67. First gears 69 are rotatably connected at positions between the rack-shaped grooves 66 and the first racks 68 inside the second chutes 67. The first gears 69 are meshed with both the rack-shaped grooves 66 and the first racks 68. Push rods 610 penetrating through the outer surface of the sleeve 5 are fixedly connected to one side of the outer surfaces of the two first racks 68. Annular grooves 611 are opened on the upper surface and the lower surface of the baffle 31 close to the sleeve 5, and the two annular grooves 611 wrap the sleeve 5; During operation, before the push plate 33 moves down to the lowest position, the baffle 31 is used to push the push rod 610 to drive the first rack 68 to move upward inside the second chute 67. Then, through the cooperation of the first gear 69 with the first rack 68 and the first slide bar 61, the first slide bar 61 is driven to move downward, and the upper end of the first slide bar 61 is withdrawn from the first card slot 62, releasing the fixation between the sleeve 5 and the fixed plate 38, enabling the sleeve 5 and the cover plate 51 to rotate and ensuring the normal use of the sealing assembly. Moreover, due to the provided annular groove 611, the push rod 610 or the L-shaped slide bar 64 enters the annular groove 611, thereby pushing the push rod 610 and the L-shaped slide bar 64 to move, preventing the push rod 610 and the L-shaped slide bar 64 from blocking the movement of the upper push block 56 and the lower push block 54, and ensuring the normal use of the sealing assembly.

[0022] As Figures 3 to 12 shown, a start-stop assembly is provided inside the fixed seat 39. The start-stop assembly includes an installation groove 7 opened inside the fixed seat 39. One side of the installation groove 7 is rotatably connected with a first meshing block 71, and the first meshing block 71 is fixedly connected with the first bevel gear 310. The other side of the installation groove 7 is rotatably connected with a fixed block 72, and the fixed block 72 is fixedly connected with the circular plate 311. A second meshing block 73 is rotatably connected between the first meshing block 71 and the fixed block 72 inside the installation groove 7, and the first meshing block 71 is meshed with the second meshing block 73. A third spring 74 is provided between the fixed block 72 and the second meshing block 73. One side of the outer surface of the fixed block 72 is fixedly connected with a square straight rod 75. A square chute 76 is opened on one side of the outer surface of the second meshing block 73 close to the fixed block 72, and the square straight rod 75 is slidably connected inside the square chute 76. A communication hole 77 is opened at a position on one side of the inner wall of the installation groove 7 close to the first meshing block 71, and the communication hole 77 penetrates into the gasification reaction device 1. During operation, gas is sent into the interior of the gasification reaction device 1 through the gas collecting cylinder 3, causing the air pressure inside the gasification reaction device 1 to increase. Then, the gasification reaction device 1 is connected to the installation groove 7 through the communication hole 77, so that the air pressure on the side of the installation groove 7 close to the first engaging block 71 is the same as the air pressure inside the gasification reaction device 1. When the air pressure inside the gasification reaction device 1 increases, a force away from the first engaging block 71 is exerted on the second engaging block 73. When the force exerted on the second engaging block 73 is greater than the force exerted on the second engaging block 73 by the third spring 74, the second engaging block 73 is pushed away from the first engaging block 71, causing the second engaging block 73 to separate from the first engaging block 71. As a result, the first bevel gear 310 cannot drive the circular plate 311 to rotate simultaneously, causing the circular plate 311 to stop rotating, and the gas collecting cylinder 3 to stop delivering gas into the interior of the gasification reaction device 1, preventing the air pressure inside the gasification reaction device 1 from rising further and ensuring the safe use of the gasification reaction device 1. Moreover, when the air pressure inside the gasification reaction device 1 decreases, indicating that the gas inside the gasification reaction device 1 has decreased, and the force exerted on the second engaging block 73 is less than the force exerted on the second engaging block 73 by the third spring 74, the second engaging block 73 is pushed towards the first engaging block 71 by the third spring 74, causing the second engaging block 73 to engage with the first engaging block 71. At the same time, through the sliding connection between the square chute 76 and the square straight rod 75, when the first bevel gear 310 drives the first engaging block 71 to rotate, the second engaging block 73 is driven to rotate simultaneously. Then, the circular plate 311 is driven to rotate through the square straight rod 75 and the fixing block 72, thereby starting the gas collecting cylinder 3 to continue delivering gas into the interior of the gasification reaction device 1. This enables the gas collecting cylinder 3 to determine whether to continue delivering gas into the interior of the gasification reaction device 1 based on the gas content inside the gasification reaction device 1, ensuring that the gas content inside the gasification reaction device 1 is within a stable range and guaranteeing the preparation efficiency of the conductive silver paste by the device.

[0023] Working principle: First, silver powder, organic solvent and surfactant are added to the inside of the aerosol preparation device 2 to make a uniform silver solution, and then the silver solution is added to the inside of the gasification reaction device 1 through the connecting pipe 10 and the spray box 11. At the same time, the transmission structure is started to drive the connecting pipe 10 and the spray box 11 to rotate, and at the same time, the No. 1 bevel gear 310 is driven to rotate, thereby starting the screening component and driving the push plate 33 to move up and down. When the push plate 33 moves downward, the oxygen inside the gas collecting cylinder 3 is discharged through the No. 1 through hole 36 and the molecular sieve membrane 37, and then the gas inside the gas collecting cylinder 3 is sent into the gasification reaction device 1 through the No. 1 one-way valve 315 in the air inlet 34. When the locking assembly is started to release the fixation of the sleeve 5 and the fixing plate 38, the closing assembly is started to drive the cover plate 51 to rotate to close the No. 1 through hole 36, and then the push plate 33 is moved upward, the locking assembly is started to fix the sleeve 5 and the fixing plate 38, and then the external air is sucked into the gas collecting cylinder 3 through the suction pipe 35, and the gas above the push plate 33 is discharged through the exhaust pipe 4, and then the gas flow detector 41 is started to detect the gas flow flowing through the exhaust pipe 4, and then based on the degree of change in the detection data, it is judged whether the replacement plate 94 needs to be replaced. When the replacement plate 94 needs to be replaced, the replacement assembly is started to replace the replacement plate 94. When the replacement plate 94 does not need to be replaced, the push plate 33 is continued to be moved upward, and then the locking assembly is started again to release the fixation of the sleeve 5 and the fixing plate 38, and the closing assembly is started to drive the cover plate 51 to rotate to open the No. 1 through hole 36, and then it moves down the push plate 33 to send the gas inside the gas collecting cylinder 3 into the gasification reaction device 1. When the gas content inside the gasification reaction device 1 rises to a certain level, the start-stop component is started to control the second meshing block 73 to separate from the first meshing block 71, thereby stopping the supply of gas to the inside of the gasification reaction device 1. When the gas content inside the gasification reaction device 1 drops to a certain level, the start-stop component is started to control the second meshing block 73 to engage with the first meshing block 71, thereby continuing to supply gas to the inside of the gasification reaction device 1.

[0024] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An aerosol-type conductive silver paste preparation device, characterized in that: It includes a gasification reaction device, on the upper surface of which is fixedly connected an aerosol preparation device. The lower surface of the aerosol preparation device is rotatably connected to a connecting pipe, and the connecting pipe penetrates into the interior of the gasification reaction device. A transmission structure is arranged on the outer circumferential surface of the connecting pipe. On one side of the upper surface of the gasification reaction device is arranged a screening assembly. The screening assembly includes a gas collection cylinder fixedly connected to one side of the upper surface of the gasification reaction device. On the upper side of the inner wall of the gas collection cylinder is fixedly connected a baffle. Inside the gas collection cylinder is hermetically slidably connected a push plate. On the upper surface of the push plate is fixedly connected a first straight rod, and the upper end of the first straight rod penetrates through the central position of the baffle and is fixedly connected to a fixing plate. On the upper surface of the push plate are opened several uniformly distributed first through holes, and a molecular sieve membrane is arranged inside the push plate. On one side of the lower end of the inner wall of the gas collection cylinder is opened an air inlet hole extending into the interior of the gasification reaction device. On the lower side of one side of the outer circumferential surface of the gas collection cylinder is fixedly connected an air suction pipe, and first one-way valves are arranged inside both the air inlet hole and the air suction pipe. One end of the air suction pipe is inserted with a dust-proof cover, and a filter screen is arranged on one side of the dust-proof cover; A fixing seat is fixedly connected to the upper surface of the gasification reaction device at a position between the connecting pipe and the gas collection cylinder. On one side of the outer surface of the fixing seat close to the gas collection cylinder is rotatably connected a circular plate. On one side of the outer surface of the circular plate away from the center is fixedly connected a fixing rotating shaft. The outer surface of the fixing rotating shaft is rotatably connected to a connecting rod, and the other end of the connecting rod is rotatably connected to the lower surface of the fixing plate. One side of the fixing rotating shaft penetrates through the fixing seat and is fixedly connected to a first bevel gear, and the first bevel gear is movably connected to the transmission structure.

2. The aerosol-type conductive silver paste preparation device according to claim 1, characterized in that: The transmission structure includes a third bevel gear fixedly connected to the outer circumferential surface of the connecting pipe, and the third bevel gear is meshed and connected with the first bevel gear. A motor is fixedly connected to one side of the upper surface of the gasification reaction device away from the fixing seat. The output end of the motor is fixedly connected to a second bevel gear, and the second bevel gear is meshed and connected with the third bevel gear. The lower end of the connecting pipe is fixedly connected to a spraying box, and several uniformly distributed nozzles are opened on the outer circumferential surface of the spraying box. A stirring structure is arranged on the lower surface of the spraying box. A pressure relief pipe is fixedly connected to one side of the upper surface of the gasification reaction device close to the motor, and a pressure detector is arranged on one side of the upper surface of the gasification reaction device close to the pressure relief pipe.

3. The aerosol-type conductive silver paste preparation device according to claim 1, characterized in that: The baffle closes the upper end of the gas collection cylinder. A detection assembly is arranged on one side of the outer circumferential surface of the gas collection cylinder. The detection assembly includes an exhaust pipe fixedly connected to the upper side of one side of the outer circumferential surface of the gas collection cylinder, and the exhaust pipe is close to the lower surface of the baffle. A gas flow detector is arranged on one side inside the exhaust pipe. A second one-way valve is arranged on the side inside the exhaust pipe away from the gas collection cylinder. Four uniformly distributed exhaust holes are opened on the outer circumferential surface of the exhaust pipe close to the second one-way valve.

4. The aerosol-type conductive silver paste preparation device according to claim 1, characterized in that: A replacement component is arranged between the gasification reaction device and the gas collecting cylinder. The replacement component includes a fixed sliding groove fixedly connected to the upper surface of the gasification reaction device at the position of the gas collecting cylinder, and the gas collecting cylinder is located at the middle position on the upper surface of the fixed sliding groove. A sliding plate is slidably connected inside the fixed sliding groove. Two placing grooves are formed on the upper surface of the sliding plate, and three-way through holes are formed at positions corresponding to the intake holes at the lower ends of the inner walls of the two placing grooves. A replacement plate is arranged below the push plate. A cylindrical block is fixedly connected to the center position of the lower surface of the push plate. Four uniformly distributed second clamping grooves are formed on the outer circular surface of the cylindrical block. A fixing hole is formed at the center position of the upper surface of the replacement plate. A circular groove is formed at the center position of the lower surface of the replacement plate. Four uniformly distributed sector grooves are formed around the fixing hole on the upper surface of the replacement plate, and the molecular sieve membrane is located inside the four sector grooves. Uniformly distributed four-way through holes are formed at the lower ends of the inner walls of the sector grooves. Four uniformly distributed three-way sliding grooves are jointly formed on one side of the inner walls of the fixing hole and the circular groove. Four U-shaped sliders are slidably connected inside the four three-way sliding grooves. A fourth spring is arranged on the outer surface of each of the four U-shaped sliders on the side away from the fixing hole. Slide holes are formed at the center positions of the lower ends of the inner walls of the two placing grooves. Slide columns are slidably connected inside the two slide holes. Fourth sliding grooves are formed at the lower ends of the inner walls of the two slide holes. Square sliding rods are slidably connected inside the two fourth sliding grooves, and the two square sliding rods are fixedly connected together. Trapezoidal grooves are formed on the upper surfaces of the two square sliding rods, and the lower surfaces of the slide columns are engaged with the trapezoidal grooves. Circular straight rods are fixedly connected to the outer surfaces of the two square sliding rods on the sides away from each other, and the two circular straight rods penetrate through the outer surface of the sliding plate. Sliding insertion rods are arranged at positions on both sides of the outer surface of the fixed sliding groove opposite to the two circular straight rods, and the two sliding insertion rods are slidably connected to the fixed sliding groove.

5. The aerosol-type conductive silver paste preparation device according to claim 4, wherein: Fifth sliding grooves are formed at positions corresponding to the four three-way sliding grooves on the outer circular surface of the replacement plate. Blocks are slidably connected inside the four fifth sliding grooves. Third rack bars are fixedly connected to the outer surfaces of the four blocks on the sides close to the three-way sliding grooves. Second rack bars are fixedly connected to the upper sides of the outer surfaces of the four U-shaped sliders on the sides away from the fixing hole. Second gears are rotatably connected between the second rack bars and the third rack bars, and the second gears are engaged with both the second rack bars and the third rack bars. Third clamping grooves are formed at positions on the lower sides of the inner walls of the push plate corresponding to the blocks.

6. The preparation device of an aerosol conductive silver paste according to claim 5, characterized in that: Arc-shaped connecting plates are arranged on both sides of the upper surface of the fixed sliding groove close to the outer circular surface of the gas collecting cylinder. Fixed retaining columns are fixedly connected to both sides of the lower surfaces of the two arc-shaped connecting plates, and the lower ends of the two fixed retaining columns penetrate into the fixed sliding groove. Limiting plates are fixedly connected to the outer circular surface of the gas collecting cylinder above the two arc-shaped connecting plates.

7. The preparation device of an aerosol conductive silver paste according to claim 1, characterized in that: A closed component is arranged on the outer cylindrical surface of the first straight rod. The closed component includes a sleeve sleeved on the outer cylindrical surface of the first straight rod. Moreover, a cover plate is fixedly connected to the lower end of the sleeve, and the lower surface of the cover plate is attached to the upper surface of the push plate. A plurality of uniformly distributed second through holes are formed in the upper surface of the cover plate. A lower tooth group is fixedly connected to the lower end of the outer cylindrical surface of the sleeve, and an upper tooth group is fixedly connected to the upper end of the outer cylindrical surface of the sleeve. Both the lower tooth group and the upper tooth group are provided with twelve tooth blocks evenly distributed in a ring. One side of the lower surface of the baffle is fixedly connected with a lower push block, and one side of the upper surface of the baffle is fixedly connected with an upper push block. An annular limit is fixedly connected to the upper surface of the push plate, and the vertical section of the annular limit is L-shaped. The outside of the cover plate is located inside the annular limit.

8. The aerosol-type conductive silver paste preparation device according to claim 7, characterized in that: A locking component is arranged inside the sleeve. The locking component includes first chutes opened on both sides of the upper surface of the sleeve. Two first sliding rods are slidably connected inside the two first chutes respectively. Twenty-four first clamping grooves evenly distributed in a ring are formed in the position above the sleeve on the lower surface of the fixing plate. Second springs are arranged at the lower ends of the two first sliding rods respectively. L-shaped chutes are opened at the lower ends of the inner walls of the two first chutes. Two L-shaped sliding rods are slidably connected inside the two L-shaped chutes respectively. One ends of the two L-shaped sliding rods pass through the second springs and are fixedly connected to the lower ends of the first sliding rods respectively. The other ends of the two L-shaped sliding rods penetrate through the outer surface of the sleeve.

9. The aerosol-type conductive silver paste preparation device according to claim 8, characterized in that: Rack-shaped grooves are formed on one side of the outer surfaces of the two first sliding rods respectively. Second chutes are opened on one side of the inner walls of the two first chutes close to the rack-shaped grooves. Two first racks are slidably connected inside the two second chutes respectively. First gears are rotatably connected to the positions between the rack-shaped grooves and the first racks inside the second chutes respectively. The first gears are meshed with both the rack-shaped grooves and the first racks. Push rods penetrating through the outer surface of the sleeve are fixedly connected to one side of the outer surfaces of the two first racks respectively. Annular grooves are formed on the upper surface and the lower surface of the baffle close to the sleeve respectively. Both of the two annular grooves wrap the sleeve.

10. The aerosol-type conductive silver paste preparation device according to claim 1, wherein: A start-stop component is arranged inside the fixed seat. The start-stop component includes an installation groove opened inside the fixed seat. A first meshing block is rotatably connected to one side inside the installation groove. The first meshing block is fixedly connected to a first bevel gear. A fixed block is rotatably connected to the other side inside the installation groove. The fixed block is fixedly connected to a circular plate. A second meshing block is rotatably connected to the position between the first meshing block and the fixed block inside the installation groove. The first meshing block is meshed with the second meshing block. A third spring is arranged between the fixed block and the second meshing block. A square straight rod is fixedly connected to one side of the outer surface of the fixed block. A square chute is opened on one side of the outer surface of the second meshing block close to the fixed block. The square straight rod is slidably connected inside the square chute. A communication hole is opened on one side of the inner wall of the installation groove close to the first meshing block. The communication hole penetrates into the gasification reaction device.

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