A preparation device and preparation method of nanoporous thermal insulation board

Abstract

The present invention discloses a preparation device and a preparation method for a nano-microporous insulation board. The preparation device includes a feeding mechanism, a stirring mechanism and a quantitative shaping mechanism. The feeding mechanism is located at the upper end of the stirring mechanism, and the quantitative shaping mechanism is located at the lower end of the stirring mechanism. The stirring mechanism includes a stirring drum and a stirring shaft. The feeding mechanism includes a material barrel, a connecting component and a cover opening component. The lower end of the material barrel passes through the top surface of the stirring drum and is fixedly connected thereto. The bottom surface of the material barrel is a cover that can be rotatably opened. The preparation method includes raw material preparation, feeding and stirring, material division and molding. By arranging the feeding mechanism and the stirring mechanism, the present invention can quantitatively and intermittently add raw materials to the stirring drum while stirring and mixing the raw materials in the stirring drum. By arranging the quantitative shaping mechanism, the mixed material in the stirring drum can be quantitatively added to multiple molds for shaping to form a nano-microporous insulation board.

Description

Technical Field

[0001] The present invention relates to the technical field of nano-microporous thermal insulation board preparation, and in particular to a device and method for preparing a nano-microporous thermal insulation board. Background Art

[0002] Nano-microporous insulation board is a type of vacuum insulation material. It is composed of a filling core material and a vacuum protective surface layer. It effectively avoids heat transfer caused by air convection, so the thermal conductivity coefficient can be greatly reduced. Compared with traditional insulation boards, microporous insulation boards have ultra-low heat capacity, ultra-low thermal conductivity, good flexibility, bendability, excellent thermal stability, excellent sound absorption, good seismic resistance, easy construction, cutting and processing, etc.

[0003] In the production of nanoporous thermal insulation boards, the raw material ratio and the mixing effect of the raw materials will directly affect the thermal insulation performance of the subsequent nanoporous thermal insulation boards. A preparation device and preparation method of nanoporous thermal insulation boards are designed, which can quantitatively add raw materials for mixing and quantitatively shape the mixture, while improving the mixing efficiency and effect. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a device and method for preparing a nano-microporous insulation board.

[0005] The technical solution of the present invention is: a device for preparing nanoporous thermal insulation board, comprising a feeding mechanism, a stirring mechanism and a quantitative shaping mechanism, wherein the feeding mechanism is located at the upper end of the stirring mechanism, and the quantitative shaping mechanism is located at the lower end of the stirring mechanism;

[0006] The stirring mechanism includes a stirring drum arranged in a vertical direction and a stirring shaft located inside the stirring drum, the stirring shaft being rotatably connected to the stirring drum, a first motor being provided on the top surface of the stirring drum, an output shaft of the first motor being connected to the stirring shaft, and a blade being provided on the stirring shaft;

[0007] The feeding mechanism includes a barrel, a connecting assembly and a cover opening assembly. The lower end of the barrel passes through the top surface of the mixing barrel and is fixedly connected thereto. The bottom surface of the barrel is a cover plate that can be rotatably opened. The end of the cover plate away from the mixing shaft is rotatably connected to the barrel through a shaft. The connecting assembly is slidably connected to the top surface of the mixing barrel. A first cam is provided on the upper part of the mixing shaft. The first cam drives the cover opening assembly to intermittently open the cover plate through the connecting assembly.

[0008] The cover opening assembly includes a rotating plate arranged in a vertical direction and a connecting rod for supporting the rotating plate, one end of the rotating plate is slidably connected to the connecting assembly, and the other end of the rotating plate is provided with a rotating shaft, the connecting rod is arranged on the top surface of the mixing drum and passes through the middle of the rotating plate, the connecting rod is rotatably connected to the rotating plate, one end of the rotating shaft is connected to the cover plate through the connecting plate, and the connecting plate is slidably connected to the cover plate;

[0009] The quantitative shaping mechanism includes a press and a mold plate. A mixture outlet is provided below the mixing drum. The mold plate is located below the mixture outlet and is provided with a plurality of molds used in conjunction with the press.

[0010] The preparation device also includes a fixing mechanism, which includes a bottom plate arranged in the horizontal direction and a vertical plate arranged in the vertical direction. The vertical plate is arranged on one side of the bottom plate, and the mixing drum is fixedly connected to the vertical plate through a connecting ring. The bottom plate is arranged at the lower end of the mold plate, and the mold plate is rotatably connected to the bottom plate. A second motor for driving the mold plate to rotate is provided on the bottom plate.

[0011] Description: By setting up a feeding mechanism and a stirring mechanism, raw materials can be added to the mixing drum in a quantitative and intermittent manner, and the raw materials entering the mixing drum can be stirred and mixed, further improving the accuracy of the raw material addition amount and the mixing efficiency of each raw material. By setting up a quantitative shaping mechanism, the mixed material in the mixing drum can be added to multiple molds for shaping, and finally a nano-porous insulation board is formed.

[0012] Furthermore, the connecting assembly includes a first sliding rod arranged horizontally on one side of the first cam and a support plate for supporting the first sliding rod, one end of the first sliding rod is slidably connected to the lower end of the rotating plate, the other end of the first sliding rod passes through the support plate arranged on the top surface of the mixing drum and is provided with a block, the first sliding rod is slidably connected to the support plate, and a first spring is provided on the outside of the first sliding rod between the block and the support plate.

[0013] Description: By setting up a connecting assembly, the stirring shaft can simultaneously drive the opening assembly to open and close the cover. The first cam on the stirring shaft intermittently pushes the connecting assembly close to the barrel, so that the opening assembly continuously and intermittently opens the cover to add the raw materials in the barrel into the mixing barrel.

[0014] Furthermore, two barrels are provided with the connecting assembly as the symmetry axis, and two connecting plates and two rotating shafts are also provided.

[0015] Description: Load the two raw materials into the barrel separately. Set up two symmetrical barrels, which can drive the two connecting plates and the rotating shaft to move at the same time, and open the two cover plates intermittently in synchronization to efficiently add the two raw materials into the mixing barrel.

[0016] Furthermore, the shaft is provided with a torsion spring for assisting the cover to close.

[0017] Description: By setting a torsion spring, the cover opening assembly is assisted to close the cover, thereby improving the tightness between the cover and the barrel.

[0018] Furthermore, a rotating rod is provided in the center of the mold tray, one end of the rotating rod passes through the bottom surface of the mold tray and is connected to the output shaft of the second motor, and an opening and closing assembly is provided on the mold tray;

[0019] The opening and closing assembly includes a second cam, a rack, and a baffle for blocking the mixed material outlet. The second cam is arranged at the other end of the rotating rod. Two incomplete gears are provided on both sides of the rack for meshing and transmitting with the rack. A support block for supporting the rack and a support rod for supporting the incomplete gear are provided on the mold plate. The rack is slidably connected to the support block, and the incomplete gear is rotatably connected to the support rod.

[0020] There are two baffles, which are slidably connected to the mixing drum. One end of the baffle is fixedly connected to the incomplete gear through a connecting piece. A round rod is provided at one end of the rack. A support for supporting the round rod is provided at the upper end of the support block on one side of the rack. The round rod is slidably connected to the support piece. A circular plate is provided at one end of the round rod. A second spring for resetting the rack is provided on the round rod between the circular plate and the support piece.

[0021] Description: By setting up an opening and closing component, a fixed amount of mixed material can be added to the mold. By setting up a second cam, the baffle can be intermittently driven to open and close the opening, so that the rotating rod drives the mold plate to rotate and switch the mold at the same time, and the second cam on the rotating rod drives the baffle to open the opening intermittently, and the mixed material is quantitatively added to the mold below, accurately controlling the mixed material in each mold and improving work efficiency.

[0022] Furthermore, the material barrel is symmetrically provided with four parts with the stirring shaft as the center, the cover opening assembly is provided with two groups, and the connecting plates and the rotating shaft are provided with four parts each.

[0023] Description: By setting up four barrels and loading the four raw materials into the barrels respectively, more raw materials can be added and added to the mixing barrel for mixing. A matching opening cover assembly, connecting plate and rotating shaft are set so that the barrels on the same side can be opened synchronously.

[0024] Furthermore, the connecting assembly includes a square frame sleeved on the outside of the first cam, and a second sliding rod arranged on the outside of the square frame and slidably connected to one end of the rotating plate. The square frame is slidably connected to the top surface of the mixing drum.

[0025] Description: Through the above arrangement, the rotation of the first cam can drive the square frame to reciprocate on the top surface of the mixing drum. The square frame drives the second slide bar to intermittently push the cover opening assembly, so that the barrels on the same side can open the cover synchronously, and the barrels on the opposite side open the cover alternately, and the raw materials are added to the mixing drum alternately.

[0026] Furthermore, the upper part of the mixing drum is a hollow cylinder, and the lower part of the mixing drum is a hollow cone. A disc is provided at the lower end of the hollow cylinder, and a channel for the mixture to enter the hollow cone is provided on the disc. A valve that can be opened electrically is provided in the channel.

[0027] Description: The upper part of the mixing drum is designed as a hollow cylinder, which is convenient for mixing a variety of raw materials. The disc is set to increase the mixing effect of each raw material. The lower part of the mixing drum is designed as a hollow cone to facilitate the flow of the mixture from the mixing drum.

[0028] The method for preparing a nanoporous thermal insulation board using the above-mentioned preparation device comprises the following steps:

[0029] S1. Raw material preparation: adding raw materials for preparing nanoporous thermal insulation board into the barrel;

[0030] S2. Adding and stirring: Start the first motor, which drives the stirring shaft to rotate. The stirring shaft drives the blades to stir and mix the raw materials entering the mixing drum. At the same time, the stirring shaft drives the first cam on it to rotate. The first cam intermittently pushes the connecting assembly closer to the barrel. The connecting assembly intermittently pushes and pulls the rotating plate on the connecting rod to rotate, so that the cover plate is intermittently opened, thereby allowing the raw materials to enter the mixing drum from the barrel;

[0031] S3, material distribution: the mixture in the mixing drum is added to the mold through the opening, and the second motor is turned on. The second motor drives the mold plate to rotate on the bottom plate. When the mold rotates to the bottom of the opening, the mixture enters the mold;

[0032] S4. Molding: The mixed material in the mold is pressed and formed by a press to obtain a nanoporous thermal insulation board.

[0033] Description: The above method and steps are used to prepare nanoporous thermal insulation boards, which can improve the production efficiency of nanoporous thermal insulation boards and facilitate operation.

[0034] The beneficial effects of the present invention are:

[0035] (1) The present invention provides a feeding mechanism and a stirring mechanism, which can add raw materials to the mixing drum in a quantitative and intermittent manner while stirring and mixing the raw materials in the mixing drum, thereby improving the accuracy of the added amount and the mixing efficiency. By providing a quantitative shaping mechanism, the mixed material in the mixing drum can be quantitatively added to multiple molds for shaping to form a nanoporous insulation board.

[0036] (2) The present invention can add a quantitative amount of mixed material to the mold by setting an opening and closing component. By setting a second cam, when the mold plate rotates to switch the mold, the second cam drives the baffle to intermittently open the opening, so that the mixed material is quantitatively added to the mold below, ensuring the accuracy of the size of the nanoporous thermal insulation board and improving the production efficiency and production quality of the nanoporous thermal insulation board. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is an appearance diagram of the preparation device of the present invention;

[0038] Figure 2 Schematic diagram of the internal structure of the mixing drum of the present invention;

[0039] Figure 3 Schematic diagram of the connection between the barrel and the stirring shaft of the present invention;

[0040] Figure 4 This invention Figure 3 Enlarged view of point B;

[0041] Figure 5 Schematic diagram of the connection relationship between the barrel, the ground and the first cam of the present invention;

[0042] Figure 6 It is a three-dimensional schematic diagram of the quantitative shaping mechanism of the present invention;

[0043] Figure 7 It is a plan view schematic diagram of the preparation device of the present invention;

[0044] Figure 8 This is an appearance diagram of the mold tray of the present invention;

[0045] Figure 9 This is a schematic diagram of the connection relationship between the mold and the opening and closing components of the present invention;

[0046] Figure 10 This invention Figure 8 A magnified view of point A;

[0047] Figure 11 Schematic diagram of the positional relationship between the cover plate and the connecting assembly of the present invention;

[0048] Figure 12 It is a schematic diagram of the connection relationship between the box and the cover opening assembly of the present invention;

[0049] Among them, 1-feeding mechanism, 11-barrel, 12-connecting assembly, 121-first slide bar, 122-support plate, 123-block, 124-first spring, 125-frame, 126-second slide bar, 13-rotating plate, 14-first cam, 15-connecting rod, 16-rotating shaft, 17-cover plate, 18-connecting plate, 2-stirring mechanism, 21-stirring barrel, 22-stirring shaft, 221-blade, 2 3-first motor, 3-quantitative shaping mechanism, 31-press, 32-mold plate, 33-mold, 4-fixing mechanism, 41-bottom plate, 42-vertical plate, 5-opening and closing assembly, 51-second cam, 52-rack, 521-support block, 522-round rod, 523-support member, 524-round plate, 525-second spring, 53-baffle, 531-connecting member, 54-incomplete gear, 541-support rod. DETAILED DESCRIPTION

[0050] The present invention will be further described in detail below in conjunction with specific implementation methods to better demonstrate the advantages of the present invention.

[0051] Example 1

[0052] like Figure 1 As shown, a device for preparing a nanoporous thermal insulation board comprises a feeding mechanism 1, a stirring mechanism 2 and a quantitative shaping mechanism 3, wherein the feeding mechanism 1 is located at the upper end of the stirring mechanism 2, and the quantitative shaping mechanism 3 is located at the lower end of the stirring mechanism 2;

[0053] like Figure 2 As shown, the stirring mechanism 2 includes a stirring drum 21 arranged in a vertical direction and a stirring shaft 22 located inside the stirring drum 21. The stirring shaft 22 is rotatably connected to the stirring drum 21. A first motor 23 is provided on the top surface of the stirring drum 21. The output shaft of the first motor 23 is connected to the stirring shaft 22. The stirring shaft 22 is provided with a blade 221.

[0054] The upper part of the mixing drum 21 is a hollow cylinder, and the lower part of the mixing drum 21 is a hollow cone. A disc is provided at the lower end of the hollow cylinder. The disc is provided with a channel for the mixed material to enter the hollow cone. A valve that can be opened electrically is provided in the channel.

[0055] The feeding mechanism 1 includes a barrel 11, a connecting assembly 12, and a cover opening assembly. The lower end of the barrel 11 passes through the top surface of the mixing drum 21 and is fixedly connected thereto. The bottom surface of the barrel 11 is a rotatably openable cover plate 17. The end of the cover plate 17 away from the mixing shaft 22 is rotatably connected to the barrel 11 via a shaft 171. The connecting assembly 12 is slidably connected to the top surface of the mixing drum 21. A first cam 14 is provided on the upper portion of the mixing shaft 22. The first cam 14 drives the cover opening assembly to intermittently open the cover plate 17 through the connecting assembly 12.

[0056] The shaft 171 is provided with a torsion spring for assisting the cover 17 in closing;

[0057] like Figure 3 、 4 5, the cover opening assembly includes a rotating plate 13 arranged in the vertical direction and a connecting rod 15 for supporting the rotating plate 13, the lower end of the rotating plate 13 is slidably connected to the connecting assembly 12, and the upper end of the rotating plate 13 is provided with a rotating shaft 16, the connecting rod 15 is arranged on the top surface of the mixing drum 21 and passes through the middle of the rotating plate 13, the connecting rod 15 is rotatably connected to the rotating plate 13, the left end of the rotating shaft 16 is connected to the cover plate 17 through the connecting plate 18, and the connecting plate 18 is slidably connected to the cover plate 17;

[0058] The barrel 11 is provided with two connecting components 12 as the symmetrical axis, and the connecting plates 18 and the rotating shaft 16 are also provided with two each;

[0059] like Figure 5 As shown, the connecting assembly 12 includes a first sliding rod 121 arranged horizontally on the upper side of the first cam 14 and a support plate 122 for supporting the first sliding rod 121. The upper end of the first sliding rod 121 is slidably connected to the lower end of the rotating plate 13. The lower end of the first sliding rod 121 passes through the support plate 122 arranged on the top surface of the mixing drum 21 and is provided with a block 123. The first sliding rod 121 is slidably connected to the support plate 122. A first spring 124 is provided on the outer side of the first sliding rod 121 between the block 123 and the support plate 122.

[0060] like Figure 6 As shown, the quantitative shaping mechanism 3 includes a press 31 and a mold plate 32. A mixture outlet is provided below the mixing drum 21. The mold plate 32 is located below the mixture outlet. The mold plate 32 is provided with six molds 33 used in conjunction with the press 31.

[0061] like Figure 7 As shown, the preparation device further includes a fixing mechanism 4, which includes a bottom plate 41 arranged in the horizontal direction and a vertical plate 42 arranged in the vertical direction. The vertical plate 42 is arranged on the left side of the bottom plate 41. The mixing drum 21 is fixedly connected to the vertical plate 42 through a connecting ring 17. The bottom plate 41 is arranged at the lower end of the mold plate 32. The mold plate 32 is rotatably connected to the bottom plate 41. A second motor for driving the mold plate 32 to rotate is provided on the bottom plate 41;

[0062] The method for preparing a nanoporous thermal insulation board using the above-mentioned preparation device comprises the following steps:

[0063] S1, raw material preparation: add two raw materials for preparing nanoporous insulation board into barrel 11;

[0064] S2. Adding and stirring: Start the first motor 23, the first motor 23 drives the stirring shaft 22 to rotate, and the stirring shaft 22 drives the blades 221 to stir and mix the raw materials entering the mixing drum 21. At the same time, the stirring shaft 22 drives the first cam 14 thereon to rotate, and the first cam 14 intermittently pushes the connecting component 12 to approach the barrel 11, and the connecting component 12 intermittently pushes and pulls the rotating plate 13 to rotate on the connecting rod 15, so that the cover plate 17 is intermittently opened and closed. The principle is the same as above, and the first cam 14 rotates , intermittently pushes the first slide bar 121 away from the stirring shaft 22 and compresses the first spring 124. The first slide bar 121 pushes the lower end of the rotating plate 13 away from the stirring shaft 22. The middle part of the rotating plate 13 rotates on the connecting rod 15, so that the upper end of the rotating plate 13 approaches the stirring shaft 22. The rotating plate 13 drives the rotating shaft 16 to approach the stirring shaft 22, thereby driving the connecting plate 18 to slide on the cover plate 17 and open the two cover plates 17, so that the raw materials intermittently enter the stirring drum 21 from the barrel 11 and are stirred and mixed;

[0065] S3. Material distribution: The mixed material in the mixing drum 21 enters the opening at the lower end of the mixing drum 21 through the channel on the disc and is added to the mold 33. The second motor is turned on, which drives the mold disc 32 to rotate on the bottom plate 41. When the mold 33 rotates to the bottom of the opening, the mixed material enters the mold 33.

[0066] S4, forming: the mixed material in the mold 33 is pressed and formed by the press 31 to obtain a nanoporous insulation board;

[0067] The first motor 23 and the second motor, the valve and the press 31 are all commercially available rotary motors, electric valves and presses, or are adjusted in shape based on commercially available rotary motors, electric valves and presses to fit in the device.

[0068] Example 2

[0069] This embodiment is basically the same as embodiment 1, except that Figure 8 、 9 As shown in FIG. 10 , a rotating rod 34 is provided at the center of the mold tray 32 . The upper end of the rotating rod 34 passes through the bottom surface of the mold tray 32 and is connected to the output shaft of the second motor. An opening and closing assembly 5 is provided on the mold tray 32 .

[0070] like Figure 10As shown, the opening and closing assembly 5 includes a second cam 51, a rack 52, and a baffle 53 for blocking the mixed material outlet. The second cam 51 is arranged at the upper end of the rotating rod 34. Two incomplete gears 54 are provided on both sides of the rack 52 for meshing and transmitting therewith. A support block 521 for supporting the rack 52 and a support rod 541 for supporting the incomplete gear 54 are provided on the mold plate 32. The rack 52 is slidably connected to the support block 521, and the incomplete gear 54 is rotatably connected to the support rod 541.

[0071] Two baffles 53 are provided, and the baffles 53 are slidably connected to the mixing drum 21. The right end of the baffle 53 is fixedly connected to the incomplete gear 54 via a connecting piece 531. A round rod 522 is provided at the right end of the rack 52. A support piece 523 for supporting the round rod 522 is provided at the upper end of the support block 521 located on the right side of the rack 52. The round rod 522 is slidably connected to the support piece 523. A circular plate 524 is provided at the right end of the round rod 522. A second spring 525 for returning the rack 52 is provided on the round rod 522 located between the circular plate 524 and the support piece 523.

[0072] The method for preparing a nanoporous thermal insulation board using the above-mentioned preparation device comprises the following steps:

[0073] S1, raw material preparation: add two raw materials for preparing nanoporous insulation board into barrel 11;

[0074] S2. Adding and stirring: Start the first motor 23, the first motor 23 drives the stirring shaft 22 to rotate, and the stirring shaft 22 drives the blades 221 to stir and mix the raw materials entering the mixing drum 21. At the same time, the stirring shaft 22 drives the first cam 14 thereon to rotate, and the first cam 14 intermittently pushes the connecting component 12 to approach the barrel 11, and the connecting component 12 intermittently pushes and pulls the rotating plate 13 to rotate on the connecting rod 15, so that the cover plate 17 is intermittently opened and closed. The principle is the same as above, and the first cam 14 rotates , intermittently pushes the first slide bar 121 away from the stirring shaft 22 and compresses the first spring 124. The first slide bar 121 pushes the lower end of the rotating plate 13 away from the stirring shaft 22. The middle part of the rotating plate 13 rotates on the connecting rod 15, so that the upper end of the rotating plate 13 approaches the stirring shaft 22. The rotating plate 13 drives the rotating shaft 16 to approach the stirring shaft 22, thereby driving the connecting plate 18 to slide on the cover plate 17 and open the two cover plates 17, so that the raw materials intermittently enter the stirring drum 21 from the barrel 11 and are stirred and mixed;

[0075] S3, material distribution: turn on the second motor, the second motor drives the rotating rod 34 to rotate, the rotating rod 34 drives the mold plate 32 to rotate on the bottom plate 41, and the rotating rod 34 drives the second cam 51 to rotate, and the second cam 51 intermittently pushes the round rod 522 to intermittently approach the baffle 53. When the round rod 522 approaches the baffle 53, it compresses the second spring 525, and the round rod 522 drives the rack 52 to approach the baffle 53, and the rack 52 drives the two incomplete gears 54 meshed with it to rotate around the support rod 541. The two incomplete gears 54 drive the two connecting parts 531 to move away from each other, thereby driving the two baffles 53 to move away from each other at the opening and open the opening. At the same time, the baffle 53 slowly opens the opening, and the mold 33 rotates to the bottom of the opening. The mixed material enters the mold 33 from the opening, and the baffle 53 closes the opening in the same principle as above. When the opening is opened again, the other mold 33 will rotate to the bottom of the opening, and the same action is repeated;

[0076] S4, forming: the mixed material in the mold 33 is pressed and formed by the press 31 to obtain a nanoporous insulation board;

[0077] Example 3

[0078] This embodiment is basically the same as embodiment 1, except that Figure 11 、 12 As shown, the barrel 11 is symmetrically provided with four parts with the stirring shaft 22 as the center, the cover assembly is provided with two groups, and the connecting plate 18 and the rotating shaft 16 are provided with four parts each;

[0079] The connecting assembly 12 includes a frame 125 sleeved on the outside of the first cam 14, and a second sliding rod 126 provided on the outside of the frame 125 and slidably connected to the lower end of the rotating plate 13. The frame 125 is slidably connected to the top surface of the mixing drum 21.

[0080] The method for preparing a nanoporous thermal insulation board using the above-mentioned preparation device comprises the following steps:

[0081] S1, raw material preparation: add two raw materials for preparing nanoporous insulation board into barrel 11;

[0082] S2, adding and stirring: start the first motor 23, the first motor 23 drives the stirring shaft 22 to rotate, and the stirring shaft 22 drives the blades 221 to stir and mix the raw materials entering the mixing drum 21. At the same time, when the stirring shaft 22 rotates, it drives the first cam 14 to rotate, and the first cam 14 drives the frame 125 to slide on the top surface of the mixing drum 21. When the frame 125 approaches one group of opening cover components, it drives one of the second sliding rods 126 to cooperate with one group of opening cover components to open the two cover plates 17 on the same side, and the raw materials in the two barrels 11 on one side are added to the mixing drum 21. When the frame 125 approaches the other group of opening cover components, the cover plates 17 on the other side of the two barrels 11 are opened, and the raw materials in the two barrels 11 on the other side are added to the mixing drum 21. At the same time, the cover plates 17 on the two barrels 11 on one side are closed, and the barrels 11 on both sides are intermittently opened to add raw materials to the mixing drum 21.

[0083] S3. Material distribution: The mixed material in the mixing drum 21 enters the opening at the lower end of the mixing drum 21 through the channel on the disc and is added to the mold 33. The second motor is turned on, which drives the mold disc 32 to rotate on the bottom plate 41. When the mold 33 rotates to the bottom of the opening, the mixed material enters the mold 33.

[0084] S4, forming: the mixed material in the mold 33 is pressed and formed by the press 31 to obtain a nanoporous thermal insulation board.

Claims

1. A device for preparing nanoporous thermal insulation board, characterized in that: It comprises a feeding mechanism (1), a stirring mechanism (2) and a quantitative shaping mechanism (3), wherein the feeding mechanism (1) is located at the upper end of the stirring mechanism (2), and the quantitative shaping mechanism (3) is located at the lower end of the stirring mechanism (2); The stirring mechanism (2) comprises a stirring drum (21) arranged in a vertical direction and a stirring shaft (22) located inside the stirring drum (21); the stirring shaft (22) is rotatably connected to the stirring drum (21); a first motor (23) is provided on the top surface of the stirring drum (21); an output shaft of the first motor (23) is connected to the stirring shaft (22); and a blade (221) is provided on the stirring shaft (22); The feeding mechanism (1) comprises a barrel (11), a connecting assembly (12) and a cover opening assembly. The lower end of the barrel (11) passes through the top surface of the mixing barrel (21) and is fixedly connected thereto. The bottom surface of the barrel (11) is a cover plate (17) that can be rotatably opened. The end of the cover plate (17) away from the mixing shaft (22) is rotatably connected to the barrel (11) via a shaft (171). The connecting assembly (12) is slidably connected to the top surface of the mixing barrel (21). A first cam (14) is provided on the upper part of the mixing shaft (22). The first cam (14) drives the cover opening assembly to intermittently open the cover plate (17) through the connecting assembly (12). The cover opening assembly comprises a rotating plate (13) arranged in a vertical direction and a connecting rod (15) for supporting the rotating plate (13); one end of the rotating plate (13) is slidably connected to the connecting assembly (12); the other end of the rotating plate (13) is provided with a rotating shaft (16); the connecting rod (15) is arranged on the top surface of the mixing drum (21) and passes through the middle of the rotating plate (13); the connecting rod (15) is rotatably connected to the rotating plate (13); one end of the rotating shaft (16) is connected to the cover plate (17) through a connecting plate (18); and the connecting plate (18) is slidably connected to the cover plate (17); The quantitative shaping mechanism (3) includes a press (31) and a die plate (32). A mixed material outlet is provided below the mixing drum (21). The die plate (32) is located below the mixed material outlet. The die plate (32) is provided with a plurality of dies (33) used in conjunction with the press (31). The preparation device further comprises a fixing mechanism (4), the fixing mechanism (4) comprising a bottom plate (41) arranged in a horizontal direction and a vertical plate (42) arranged in a vertical direction, the vertical plate (42) being arranged on one side of the bottom plate (41), the mixing drum (21) being fixedly connected to the vertical plate (42) via a connecting ring, the bottom plate (41) being arranged at the lower end of the mold plate (32), the mold plate (32) being rotatably connected to the bottom plate (41), and a second motor for driving the mold plate (32) to rotate is provided on the bottom plate (41); The connecting assembly (12) includes a first sliding rod (121) arranged on one side of the first cam (14) in the horizontal direction and a support plate (122) for supporting the first sliding rod (121); one end of the first sliding rod (121) is slidably connected to the lower end of the rotating plate (13); the other end of the first sliding rod (121) passes through the support plate (122) arranged on the top surface of the mixing drum (21) and is provided with a block (123); a first spring (124) is provided on the outside of the first sliding rod (121) between the block (123) and the support plate (122); The barrel (11) is provided with two connecting components (12) as the symmetry axis, and the connecting plate (18) and the rotating shaft (16) are also provided with two. The shaft (171) is provided with a torsion spring for assisting the cover plate (17) in closing; A rotating rod (34) is provided at the center of the mold plate (32), one end of the rotating rod (34) passes through the bottom surface of the mold plate (32) and is connected to the output shaft of the second motor, and an opening and closing component (5) is provided on the mold plate (32); The opening and closing assembly (5) comprises a second cam (51), a rack (52) and a baffle (53) for blocking the mixed material outlet, wherein the second cam (51) is arranged at the other end of the rotating rod (34), two incomplete gears (54) meshing with the rack (52) are provided on both sides thereof, and a support block (521) for supporting the rack (52) and a support rod (541) for supporting the incomplete gear (54) are provided on the mold plate (32), the rack (52) is slidably connected to the support block (521), and the incomplete gear (54) is rotatably connected to the support rod (541); Two baffles (53) are provided, and the baffles (53) are slidably connected to the mixing drum (21). One end of the baffle (53) is fixedly connected to the incomplete gear (54) through a connecting piece (531). A round rod (522) is provided at one end of the rack (52). A support piece (523) for supporting the round rod (522) is provided at the upper end of a support block (521) located on one side of the rack (52). The round rod (522) is slidably connected to the support piece (523). A circular plate (524) is provided at one end of the round rod (522). A second spring (525) for resetting the rack (52) is provided on the round rod (522) located between the circular plate (524) and the support piece (523).

2. The device for preparing a nanoporous thermal insulation board according to claim 1, characterized in that: The material barrel (11) is symmetrically provided with four parts with the stirring shaft (22) as the center, two groups of cover opening components are provided, and four connecting plates (18) and four rotating shafts (16) are provided.

3. The device for preparing a nanoporous thermal insulation board according to claim 1, characterized in that: The connecting assembly (12) includes a square frame (125) sleeved on the outside of the first cam (14), and a second sliding rod (126) arranged on the outside of the square frame (125) and slidably connected to one end of the rotating plate (13). The square frame (125) is slidably connected to the top surface of the mixing drum (21).

4. The device for preparing a nanoporous thermal insulation board according to claim 1, wherein: The upper part of the mixing drum (21) is a hollow cylinder, and the lower part of the mixing drum (21) is a hollow cone. A disc is provided at the lower end of the hollow cylinder. The disc is provided with a channel for the mixed material to enter the hollow cone. A valve that can be opened electrically is provided in the channel.

5. A method for preparing a nanoporous thermal insulation board using the preparation device according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1. Raw material preparation: adding raw materials for preparing nanoporous thermal insulation board into the barrel (11); S2, adding materials and stirring: starting the first motor (23), the first motor (23) drives the stirring shaft (22) to rotate, the stirring shaft (22) drives the blades (221) to stir and mix the raw materials entering the stirring drum (21), and at the same time, the stirring shaft (22) drives the first cam (14) thereon to rotate, the first cam (14) intermittently pushes the connecting component (12) to approach the barrel (11), and the connecting component (12) intermittently pushes and pulls the rotating plate (13) to rotate on the connecting rod (15), so that the cover plate (17) is intermittently opened, thereby allowing the raw materials to enter the stirring drum (21) from the barrel (11); S3, material distribution: the mixed material in the mixing drum (21) is added into the mold (33) through the opening, the second motor is turned on, and the second motor drives the mold plate (32) to rotate on the bottom plate (41), and the mold (33) rotates to the bottom of the opening, so that the mixed material enters the mold (33); S4, forming: the mixed material in the mold (33) is pressed and formed by a press (31) to obtain a nanoporous thermal insulation board.

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