Sandstone sound-absorbing decorative soft board and preparation method thereof

Abstract

The invention belongs to the field of sound-absorbing decorative plates, particularly relates to a sandstone sound-absorbing decorative soft plate and a preparation method thereof, and provides the following scheme aiming at the problems that an existing sandstone sound-absorbing plate cannot be used for arc-shaped decoration and procedures are complicated when the sandstone sound-absorbing plate is prepared: the sandstone sound-absorbing decorative soft plate comprises a sandstone sound-absorbing decorative soft plate body, the sandstone sound-absorbing decorative soft board body is composed of aggregate particles, a gel solvent and anti-crack fibers, the aggregate particles are selected from one or more of machine-made sand, glass beads, quartz sand and synthetic color sand, the material distribution box is driven by a lead screw and a threaded block to transversely move, so that slurry can be evenly distributed in a mold box, and the anti-crack effect is achieved. And the pressing and vibrating plate is driven by the eccentric plate to move downwards and vibrate, slurry is flattened, bubbles and gaps are eliminated under the vibration effect, the flatness and quality of the product are guaranteed, the sandstone sound-absorbing decorative soft plate body can be installed in a bent arc shape, and the requirements of different application scenes are met.

Description

Technical Field

[0001] The invention relates to the technical field of sound-absorbing decorative panels, and in particular to a sandstone sound-absorbing decorative soft panel and a preparation method thereof. Background Art

[0002] Sound-absorbing panels are needed for sound absorption in civil building decoration, industrial noise control, and sound absorption and noise reduction in the transportation field. The principle of sound absorption is that the incident sound is absorbed by the pores of the panel itself. The sound absorption method can be divided into two categories: porous sound-absorbing materials and resonant sound-absorbing structures. A sandstone sound-absorbing decorative soft panel is a porous sound-absorbing panel with many interconnected micropores inside. The incident sound waves are absorbed by the micropores of the panel itself, generating friction and resistance in the pores, and the sound energy is absorbed;

[0003] The sandstone sound-absorbing panels currently used in the market can only be used for flat decorative surfaces due to the rigidity of the product, and cannot be used for curved decoration. In recent years, the demand for smooth curved decoration in the decoration market has increased; at the same time, the preparation process of sandstone sound-absorbing panels is complicated and the operation is cumbersome. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art that the sandstone sound-absorbing board can only be used for flat decorative surfaces due to the rigidity of the product, but cannot be used for curved decoration. In recent years, the demand for smooth curved decoration in the decoration market has increased; at the same time, the preparation process of the sandstone sound-absorbing board is complicated and the operation is cumbersome. A sandstone sound-absorbing decorative soft board and a preparation method thereof are proposed.

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

[0006] A sandstone sound-absorbing decorative soft board comprises a sandstone sound-absorbing decorative soft board body, wherein the sandstone sound-absorbing decorative soft board body is composed of orthopedic particles, a gel solvent and anti-cracking fibers, wherein the orthopedic particles are selected from one or a combination of machine-made sand, vitrified microspheres, quartz sand and synthetic colored sand, wherein the orthopedic particles have a diameter of 0.2-3 mm, wherein the weight ratio of the orthopedic particles, the gel solvent and the anti-cracking fibers is 1:0.15:0.005, and the gel solvent is one of carbamate, polyisocyanate or polyurethane resin.

[0007] In a possible design, it also includes a concrete cylinder and multiple steel code assemblies, which are arranged in a ring shape on the outer wall of the concrete cylinder, and the sandstone sound-absorbing decorative soft board body is installed at one end of the steel code assembly. The outer wall of the sandstone sound-absorbing decorative soft board body is provided with a clamping plate, and the clamping plate is connected to the sandstone sound-absorbing decorative soft board body through a dry wall screw, and the dry wall screw is one of a bendable steel keel or a flame-retardant wooden plywood.

[0008] A method for preparing a sandstone sound-absorbing decorative soft board, used for preparing the above-mentioned sandstone sound-absorbing decorative soft board, comprises the following steps:

[0009] S1. First, weigh the orthopedic particles and the gel solvent respectively, stir the gel solvent evenly, and then add the orthopedic particles into the orthopedic particles and stir evenly to form a mixture;

[0010] S2. Then, it is arranged in a mold through a distribution hopper: after compaction by a pressure vibration device, it is placed in a constant room environment with a temperature of 60° C. and a humidity of 90% for 8 hours for curing to obtain a decorative sound-absorbing soft board.

[0011] In a possible design, the material distribution hopper in step S2 includes a main frame and a mold box, one side of the main frame is fixedly connected to an extension frame, the interior of the main frame is slidably connected to a material distribution box, slurry is placed inside the material distribution box, and a mixing component for mixing the slurry is provided inside the material distribution box;

[0012] A connecting rod is fixedly connected to one side of the bottom of the material distribution box, and a flattening component for flattening the slurry is provided at the bottom of the connecting rod;

[0013] The bottom inner wall of the main frame is provided with a supporting assembly for supporting the mold box;

[0014] The bottom of the material distribution box is provided with an opening, and one side of the material distribution box is provided with a blocking component for blocking the opening.

[0015] In one possible design, the mixing assembly includes a third rotating shaft and two second rotating shafts rotatably connected between the inner walls of both sides of the material box, the outer wall of the third rotating shaft is provided with a plurality of blades, the blades cooperate with the opening, the outer wall of the second rotating shaft is provided with a plurality of stirring blades, one end of the second rotating shaft and the third rotating shaft both rotate through the material box and are fixedly connected to the first rotating shaft, a second servo motor is fixedly connected to one side of the material box, the second servo motor is fixedly connected to one end of one of the second rotating shafts, the outer walls of the first rotating shafts are fixedly sleeved with synchronous wheels, the outer wall transmission sleeves of the three synchronous wheels are provided with the same synchronous belt, and one end of the first rotating shaft located at the bottom is fixedly connected to an eccentric plate.

[0016] In a possible design, the flattening assembly includes a fixed plate fixedly connected to the bottom of the connecting rod, two symmetrically arranged fixed rods are slidably penetrated inside the fixed plate, the bottoms of the two fixed rods are fixedly connected to the same vibration-compression plate, the vibration-compression plate is sleeved on the outside of the fixed plate, the top of the fixed rod is fixedly connected to a limiting block, the bottom of the limiting block and the top of the fixed plate are fixedly connected with the same spring, the spring is sleeved on the outside of the fixed rod, one side of the vibration-compression plate is fixedly connected to a side block, and the side block is used in conjunction with the eccentric plate.

[0017] In a possible design, the support assembly includes an electric push rod fixedly connected to the inner wall of the bottom of the main frame, the piston rod of the electric push rod is fixedly connected to a support push plate, the support push plate is located below the mold box, the inner walls on both sides of the main frame are provided with a first slide groove, the top inner wall of the first slide groove is provided with a second slide groove that is connected to each other, two symmetrically arranged sliders are fixedly connected to both sides of the mold box, the sliders are slidably connected to the first slide groove and the second slide groove, and a triangular block is fixedly connected to one side of the top of the mold box.

[0018] In a possible design, the blocking assembly includes a first transverse groove, a vertical groove and a second transverse groove opened on one side of the fabric box, the first transverse groove and the second transverse groove are arranged in parallel, the first transverse groove is located directly above the second transverse groove, the vertical groove is located at one end of the first transverse groove and the second transverse groove and is connected to the first transverse groove and the second transverse groove, and the first transverse groove, the vertical groove and the second transverse groove are opened on one side The same connected rectangular cavity, the interior of the first transverse groove is slidably connected with a first rectangular block, the bottom of the first rectangular block is fixedly connected with a sleeve, the bottom of the sleeve is slidably penetrated by an inner rod, the top of the inner rod and the top inner wall of the sleeve are fixedly connected with the same tension spring, the bottom of the inner rod is fixedly connected with a second rectangular hole, the second rectangular hole is slidably connected to the inside of the second transverse groove and the vertical groove, one end of the second rectangular hole is fixedly connected with an L-shaped sealing plate, the L-shaped sealing plate is used to seal the opening, and the bottom side of the L-shaped sealing plate is fixedly connected with an extension plate, and the extension plate is used in conjunction with the triangular block.

[0019] In a possible design, a third slide groove is provided on the inner walls on both sides of the main frame and the extension frame, and a threaded block is slidably connected inside the third slide groove. The two sides of the threaded blocks that are close to each other are respectively fixedly connected to the two sides of the fabric box, and a same screw rod is rotatably connected between the inner walls on both sides of one of the third slide grooves, and the screw rod thread passes through the corresponding threaded block. A first servo motor is fixedly connected to one side of the extension frame, and the output shaft of the first servo motor is fixedly connected to one end of the screw rod.

[0020] In the present application, orthopedic particles and gel solvent are weighed separately and put into the inside of the fabric box. After the gel solvent is stirred evenly, it is added to the orthopedic particles and stirred evenly to form a mixture. The second servo motor is started, and the output shaft of the second servo motor drives the second rotating shaft and the third rotating shaft to rotate through the synchronous belt and the synchronous wheel. The third rotating shaft drives the blades to rotate, and the second rotating shaft drives the stirring blades to rotate, which can ensure that the slurry is mixed completely.

[0021] After the mixing is completed, the mold box can be pushed horizontally to the inside of the main frame, the slider moves inside the first slide slot, the mold box falls on the top of the support push plate, the electric push rod is started, and the piston rod of the electric push rod lifts the support push plate. At this time, the slider enters the inside of the second slide slot, the mold box is lifted upward, and moves to the bottom of the fabric box. At the same time, the triangular block pushes the extension plate to move horizontally;

[0022] At this time, the extension plate drives the L-shaped sealing plate to move laterally, and the L-shaped sealing plate drives the tension spring to move laterally, and the tension spring drives the first rectangular block to move laterally through the sleeve and the inner rod. At this time, the first rectangular block moves laterally inside the first transverse groove, and the second rectangular hole moves laterally inside the second transverse groove, until the first rectangular block and the second rectangular hole are both moved to the inside of the vertical groove. At this time, the second rectangular hole and the inner rod move vertically upward under the tension of the tension spring, and then the L-shaped sealing plate first moves laterally and no longer blocks the opening, and then moves vertically upward to avoid the L-shaped sealing plate from resetting, thereby ensuring a smooth material discharge process.

[0023] Due to the continuous rotation of the blades, the material evenly falls through the opening to the inside of the mold box. At the same time, the third rotating shaft drives the eccentric plate to rotate when rotating. The eccentric plate will continuously move the side blocks, and the side blocks will drive the pressure vibration plate to move downward. The pressure vibration plate drives the fixed rod to move downward, and the fixed rod drives the limit block to move downward and squeeze the spring. At this time, the pressure vibration plate can flatten the slurry and continuously vibrate under the elastic force of the spring to ensure that the slurry can be spread flat inside the mold box.

[0024] At the same time, the first servo motor is started, and the output shaft of the first servo motor drives the screw to rotate, the screw drives the thread block to move horizontally, and the thread block drives the material distribution box to move horizontally, so that the material distribution is uniform. After the material distribution is completed, the mold box is moved down, taken out, and placed in a constant room environment with a temperature of 60°C and a humidity of 90% for 8 hours to cure and shape the sandstone sound-absorbing decorative soft board body. After demolding, it is naturally cured at room temperature for 2 days to reach the target strength;

[0025] When installing the sandstone sound-absorbing decorative soft board body, use the steel code assembly to fix the clamping plate on the concrete cylinder, and use the dry wall screws to lock the sandstone sound-absorbing decorative soft board body on the clamping plate. It is applied to curved ceiling finishes, curved wall finishes, curved cylinder finishes, etc. It can be installed in a curved shape and has sound-absorbing function to meet market needs.

[0026] Beneficial effects: Efficient mixing and uniform distribution:

[0027] The stirring system (including blades and stirring blades) is driven by the second servo motor to ensure that the gel solvent and the aggregate particles can be fully mixed to form a uniform mixture, thereby improving the uniformity and quality of the slurry.

[0028] The distribution box is driven by the screw rod and the threaded block to achieve lateral movement, so that the slurry can be evenly distributed in the mold box, further improving the uniformity and consistency of the product.

[0029] Automatic control and convenient operation:

[0030] The entire mixing, spreading and curing process is highly automated, reducing manual intervention and improving production efficiency.

[0031] The lifting and lateral pushing of the mold box are realized by electric push rod and slider chute system, which is easy and fast to operate.

[0032] Innovative sealing and feeding mechanism:

[0033] The sealing system composed of L-shaped sealing plate, tension spring and other components ensures the smooth opening and closing of the opening during the material dispensing process, avoids the leakage and waste of slurry, and ensures the smoothness of the material dispensing process.

[0034] The design of the sealing plate moving horizontally first and then vertically ensures the sealing effect and avoids interference during resetting.

[0035] Vibration leveling and high-quality molding:

[0036] The vibration plate moves downward and vibrates through the drive of the eccentric plate and the side blocks, flattens the slurry and eliminates bubbles and gaps under the action of vibration, ensuring the flatness and quality of the product.

[0037] Curing and molding under a constant environment and natural curing at room temperature ensure that the sandstone sound-absorbing decorative soft board body reaches the target strength.

[0038] Wide range of applications and flexibility:

[0039] The sandstone sound-absorbing decorative soft board can be installed in a curved shape, which is suitable for curved ceiling finishes, curved wall finishes, curved cylindrical finishes, etc., meeting the needs of different application scenarios.

[0040] The fixing method of steel code components and dry wall screws makes the installation easy and firm, which improves the convenience and reliability of installation.

[0041] Market adaptability and sound absorption function:

[0042] The product has sound-absorbing function and meets the market demand for sound-absorbing materials.

[0043] Flexible installation methods and a wide range of applications enable the product to better adapt to market demand and improve market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1A schematic diagram of the three-dimensional structure of a material box and a main frame in a method for preparing a sandstone sound-absorbing decorative soft board proposed in the present invention;

[0045] Figure 2 A schematic diagram of the three-dimensional structure of a material distribution box and a main frame from a second perspective in a method for preparing a sandstone sound-absorbing decorative soft board proposed by the present invention;

[0046] Figure 3 An exploded view of a main frame and a mold box in a method for preparing a sandstone sound-absorbing decorative soft board proposed by the present invention;

[0047] Figure 4 A schematic diagram of the three-dimensional structure of a material distribution box and a pressure vibration plate in a method for preparing a sandstone sound-absorbing decorative soft board proposed in the present invention;

[0048] Figure 5 The explosion intention of the pressure vibration plate and the fixing plate in the preparation method of the sandstone sound-absorbing decorative soft board proposed by the present invention;

[0049] Figure 6 A schematic diagram of the three-dimensional structure of a first rotating shaft and a second rotating shaft in a method for preparing a sandstone sound-absorbing decorative soft board proposed by the present invention;

[0050] Figure 7 An exploded view of a fabric box and an L-shaped sealing plate in a method for preparing a sandstone sound-absorbing decorative soft board proposed by the present invention;

[0051] Figure 8 A schematic diagram of a three-dimensional cross-sectional structure of a mold box and slurry in a method for preparing a sandstone sound-absorbing decorative soft board proposed by the present invention;

[0052] Fig. 9 This is a schematic diagram of the installation of a sandstone sound-absorbing decorative soft board proposed by the present invention.

[0053] In the figure: 11, mold box; 12, slurry; 13, electric push rod; 14, support push plate; 15, slider; 16, triangular block; 17, first slide; 18, second slide; 21, clamping plate; 22, sandstone sound-absorbing decorative soft board body; 23, dry wall screw; 24, steel code assembly; 25, concrete column; 31, main frame; 32, extension frame; 33, first servo motor; 34, third slide; 35, screw; 36, threaded block; 41, vibration plate; 42, side block; 43, limit block; 44, spring ; 45. Fixed rod; 46. Fixed plate; 47. Connecting rod; 50. Third rotating shaft; 51. Fabric box; 52. First rotating shaft; 53. Synchronous belt; 54. Synchronous wheel; 55. Eccentric plate; 56. Second servo motor; 57. Stirring blade; 58. Second rotating shaft; 59. Blade; 61. Rectangular cavity; 62. First transverse groove; 63. Vertical groove; 64. Second transverse groove; 65. First rectangular block; 66. Tension spring; 67. Second rectangular hole; 68. Extension plate; 69. Inner rod; 70. Sleeve; 71. L-shaped sealing plate. DETAILED DESCRIPTION

[0054] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0055] Example 1; Reference Figure 1-9 A sandstone sound-absorbing decorative soft board is used in the field of sound-absorbing decorative boards, including: a sandstone sound-absorbing decorative soft board body 22, the sandstone sound-absorbing decorative soft board body 22 is composed of orthopedic particles, gel solvent and anti-cracking fibers, the orthopedic particles are selected from one or more combinations of machine-made sand, vitrified microspheres, quartz sand and synthetic colored sand, the orthopedic particles have a diameter of 0.5 mm, the weight ratio of orthopedic particles, gel solvent and anti-cracking fibers is 1:0.15:0.005, the gel solvent is one of carbamate, polyisocyanate or polyurethane resin, and also includes a concrete cylinder 25 and a plurality of steel code components 24, the plurality of steel code components 24 are arranged in a ring shape on the outer wall of the concrete cylinder 25, the sandstone The sound-absorbing decorative soft board body 22 is installed at one end of the steel code component 24. The outer wall of the sandstone sound-absorbing decorative soft board body 22 is provided with a clamping plate 21. The clamping plate 21 is connected to the sandstone sound-absorbing decorative soft board body 22 through a dry wall screw 23. The dry wall screw 23 is one of a bendable steel keel or a flame-retardant wooden plywood. When installing the sandstone sound-absorbing decorative soft board body 22, the steel code component 24 is used to fix the clamping plate 21 on the concrete column 25, and the dry wall screw 23 is used to lock the sandstone sound-absorbing decorative soft board body 22 on the clamping plate 21. It is applied to arc-shaped ceiling finishes, arc-shaped wall finishes, arc-shaped finishes of columns, etc. It can be installed in a bendable arc shape and has a sound absorption function to meet market needs.

[0056] A method for preparing a sandstone sound-absorbing decorative soft board, used for preparing the above-mentioned sandstone sound-absorbing decorative soft board, comprises the following steps:

[0057] S1. First, weigh the orthopedic particles and the gel solvent respectively, stir the gel solvent evenly, and then add the orthopedic particles into the orthopedic particles and stir evenly to form a mixture;

[0058] S2. Then, it is arranged in a mold through a distribution hopper: after compaction by a pressure vibration device, it is placed in a constant room environment with a temperature of 60° C. and a humidity of 90% for 8 hours for curing to obtain a decorative sound-absorbing soft board.

[0059] The material distributing hopper in step S2 includes a main frame 31 and a mold box 11, one side of the main frame 31 is fixedly connected to an extension frame 32, the interior of the main frame 31 is slidably connected to a material distributing box 51, the interior of the material distributing box 51 is filled with slurry 12, the interior of the material distributing box 51 is provided with a mixing assembly for mixing the slurry 12, the mixing assembly includes a third rotating shaft 50 and two second rotating shafts 58 rotatably connected between the inner walls of both sides of the material distributing box 51, the outer wall of the third rotating shaft 50 is provided with a plurality of blades 59, the blades 59 are matched with the opening, the outer wall of the second rotating shaft 58 is provided with a plurality of stirring blades 57, one end of the second rotating shaft 58 and the third rotating shaft 50 are both rotatably passed through the material distributing box 51 and are fixedly connected to the first rotating shaft 52, and one side of the material distributing box 51 is fixedly connected to a second servo motor 56 , the second servo motor 56 is fixedly connected to one end of one of the second rotating shafts 58, the outer wall of the first rotating shaft 52 is fixedly sleeved with a synchronous wheel 54, the outer wall transmission sleeves of the three synchronous wheels 54 are provided with the same synchronous belt 53, and one end of the first rotating shaft 52 located at the bottom is fixedly connected with an eccentric plate 55, the orthopedic particles and the gel solvent are weighed and put into the inside of the material distribution box 51 respectively, after the gel solvent is stirred evenly, it is added into the orthopedic particles and stirred evenly to form a mixture, and the second servo motor 56 is started, and the output shaft of the second servo motor 56 drives the second rotating shaft 58 and the third rotating shaft 50 to rotate through the synchronous belt 53 and the synchronous wheel 54, the third rotating shaft 50 drives the blade 59 to rotate, and the second rotating shaft 58 drives the stirring blade 57 to rotate, so as to ensure that the slurry 12 is mixed completely;

[0060] A connecting rod 47 is fixedly connected to one side of the bottom of the material distribution box 51, and a flattening component for flattening the slurry 12 is arranged at the bottom of the connecting rod 47, and the flattening component includes a fixed plate 46 fixedly connected to the bottom of the connecting rod 47, and two symmetrically arranged fixed rods 45 are slidably penetrated inside the fixed plate 46, and the bottoms of the two fixed rods 45 are fixedly connected to the same pressure vibration plate 41, and the pressure vibration plate 41 is sleeved on the outside of the fixed plate 46, and the top of the fixed rod 45 is fixedly connected to the limiting block 43, and the same spring 44 is fixedly connected between the bottom of the limiting block 43 and the top of the fixed plate 46, and the spring 44 is sleeved on the outside of the fixed rod 45. A side block 42 is fixedly connected to one side of 41, and the side block 42 is used in conjunction with the eccentric plate 55. Due to the continuous rotation of the blade 59, the material evenly falls through the opening to the inside of the mold box 11. At the same time, the third rotating shaft 50 drives the eccentric plate 55 to rotate when rotating, and the eccentric plate 55 will continuously move the side block 42, and the side block 42 drives the pressure vibration plate 41 to move downward, and the pressure vibration plate 41 drives the fixed rod 45 to move downward, and the fixed rod 45 drives the limit block 43 to move downward and squeeze the spring 44. At this time, the pressure vibration plate 41 can flatten the slurry 12 and continuously vibrate under the elastic force of the spring 44 to ensure that the slurry 12 can be spread flat inside the mold box 11;

[0061] The bottom inner wall of the main frame 31 is provided with a support assembly for supporting the mold box 11, and the support assembly includes an electric push rod 13 fixedly connected to the bottom inner wall of the main frame 31, and the piston rod of the electric push rod 13 is fixedly connected to a support push plate 14, and the support push plate 14 is located below the mold box 11. The inner walls on both sides of the main frame 31 are provided with a first slide groove 17, and the top inner wall of the first slide groove 17 is provided with a second slide groove 18 connected to each other. Two symmetrically arranged sliders 15 are fixedly connected to both sides of the mold box 11, and the slider 15 is connected to the first slide groove 17 and the second The chute 18 is slidably connected, and a triangular block 16 is fixedly connected to one side of the top of the mold box 11. After the mixing is completed, the mold box 11 can be pushed horizontally to the inside of the main frame 31, and the slider 15 moves inside the first chute 17. The mold box 11 falls on the top of the support push plate 14, and the electric push rod 13 is started. The piston rod of the electric push rod 13 pushes up the support push plate 14. At this time, the slider 15 enters the inside of the second chute 18, and the mold box 11 is lifted upward and moved to the bottom of the cloth box 51. At the same time, the triangular block 16 pushes the extension plate 68 to move horizontally;

[0062] An opening is provided at the bottom of the cloth box 51, and a blocking component for blocking the opening is provided on one side of the cloth box 51, the blocking component includes a first transverse groove 62, a vertical groove 63 and a second transverse groove 64 opened on one side of the cloth box 51, the first transverse groove 62 and the second transverse groove 64 are arranged in parallel, the first transverse groove 62 is located directly above the second transverse groove 64, the vertical groove 63 is located at one end of the first transverse groove 62 and the second transverse groove 64 and are both connected to the first transverse groove 62 and the second transverse groove 64, and the first transverse groove 62, the vertical groove 63 and the second transverse groove 64 are provided with the same connected rectangular cavity 61 on one side, the interior of the first transverse groove 62 is slidably connected with a first rectangular block 65, the bottom of the first rectangular block 65 is fixedly connected with a sleeve 70, the bottom of the sleeve 70 is slidably penetrated by an inner rod 69, the top of the inner rod 69 is fixedly connected to the inner wall of the top of the sleeve 70 with the same tension spring 66, the bottom of the inner rod 69 is fixedly connected with a second rectangular hole 67, and the second rectangular hole 67 is slidably connected to the second transverse groove 62. When the locking cam 68 is in the closed position, the locking cam 68 is in the closed position, and the locking cam 68 is in the closed position, so that the locking cam 68 is in the closed position.

[0063] Example 2; Reference Figure 1-9, improved on the basis of Example 1: third slide grooves 34 are provided on the inner walls on both sides of the main frame 31 and the extension frame 32, and the third slide grooves 34 are slidably connected with threaded blocks 36 inside. The two threaded blocks 36 are fixedly connected to the two sides of the cloth box 51 on the sides thereof. The same screw rod 35 is rotatably connected between the inner walls on both sides of one of the third slide grooves 34, and the screw rod 35 threads through the corresponding threaded blocks 36. A first servo motor 33 is fixedly connected to one side of the extension frame 32, and the output shaft of the first servo motor 33 is fixedly connected to one end of the screw rod 35. At the same time, the first servo motor 33 is started, and the output shaft of the first servo motor 33 drives the screw rod 35 to rotate, and the screw rod 35 drives the threaded block 36 to move horizontally, and the threaded block 36 drives the cloth box 51 to move horizontally, so that the cloth is uniform. After the cloth is completed, the mold box 11 is moved down, taken out, and placed in a constant room environment with a temperature of 60°C and a humidity of 90% for 8 hours to cure and form the sandstone sound-absorbing decorative soft board body 22. After demolding, it is naturally cured at room temperature for 2 days to reach the target strength.

[0064] However, as is well known to those skilled in the art, the working principles and wiring methods of the second servo motor 56, the electric push rod 13 and the first servo motor 33 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any optional selections according to their needs or convenience.

[0065] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sandstone sound-absorbing decorative soft board, characterized in that: include: A sandstone sound-absorbing decorative soft board body (22), the sandstone sound-absorbing decorative soft board body (22) is composed of orthopedic particles, gel solvent and anti-cracking fibers, the orthopedic particles are selected from one or a combination of machine-made sand, vitrified microspheres, quartz sand and synthetic colored sand, the orthopedic particles have a diameter of 0.2-3 mm, the orthopedic particles, gel solvent and anti-cracking fibers have a weight ratio of 1:0.15:0.005, and the gel solvent is one of carbamate, polyisocyanate or polyurethane resin.

2. The sandstone sound-absorbing decorative soft board according to claim 1 is characterized in that: The invention also comprises a concrete cylinder (25) and a plurality of steel code assemblies (24), wherein the plurality of steel code assemblies (24) are arranged in a ring shape on the outer wall of the concrete cylinder (25), the sandstone sound-absorbing decorative soft board body (22) is installed on one end of the steel code assembly (24), and the outer wall of the sandstone sound-absorbing decorative soft board body (22) is provided with a clamping plate (21), and the clamping plate (21) is connected to the sandstone sound-absorbing decorative soft board body (22) through a dry wall screw (23), and the dry wall screw (23) is one of a bendable steel keel or a flame-retardant wooden plywood.

3. A method for preparing a sandstone sound-absorbing decorative soft board, used for preparing the sandstone sound-absorbing decorative soft board as claimed in any one of claims 1 to 2, characterized in that: The following steps are involved: S1. First, weigh the orthopedic particles and the gel solvent respectively, stir the gel solvent evenly, and then add the orthopedic particles into the orthopedic particles and stir evenly to form a mixture; S2. Then, it is arranged in a mold through a distribution hopper: after compaction by a pressure vibration device, it is placed in a constant room environment with a temperature of 60° C. and a humidity of 90% for 8 hours for curing to obtain a decorative sound-absorbing soft board.

4. The method for preparing a sandstone sound-absorbing decorative soft board according to claim 3, characterized in that: The material distribution hopper in step S2 comprises a main frame (31) and a mold box (11), one side of the main frame (31) is fixedly connected to an extension frame (32), the interior of the main frame (31) is slidably connected to a material distribution box (51), the interior of the material distribution box (51) contains slurry (12), and the interior of the material distribution box (51) is provided with a mixing component for mixing the slurry (12); A connecting rod (47) is fixedly connected to one side of the bottom of the material distribution box (51), and a flattening component for flattening the slurry (12) is provided at the bottom of the connecting rod (47); The bottom inner wall of the main frame (31) is provided with a supporting assembly for supporting the mold box (11); The bottom of the material distribution box (51) is provided with an opening, and one side of the material distribution box (51) is provided with a blocking component for blocking the opening.

5. The method for preparing a sandstone sound-absorbing decorative soft board according to claim 4, characterized in that: The mixing assembly comprises a third rotating shaft (50) and two second rotating shafts (58) which are rotatably connected between the inner walls of both sides of a material distribution box (51); the outer wall of the third rotating shaft (50) is provided with a plurality of blades (59) which cooperate with the opening; the outer wall of the second rotating shaft (58) is provided with a plurality of stirring blades (57); one end of the second rotating shaft (58) and the third rotating shaft (50) both rotate through the material distribution box (51) and are fixedly connected to the first rotating shaft (52); a second servo motor (56) is fixedly connected to one side of the material distribution box (51); the second servo motor (56) is fixedly connected to one end of one of the second rotating shafts (58); the outer wall of the first rotating shaft (52) is fixedly sleeved with a synchronous wheel (54); the outer wall transmission sleeves of the three synchronous wheels (54) are provided with the same synchronous belt (53); one end of the first rotating shaft (52) located at the bottom is fixedly connected to an eccentric plate (55).

6. The method for preparing a sandstone sound-absorbing decorative soft board according to claim 4, characterized in that: The flattening assembly comprises a fixed plate (46) fixedly connected to the bottom of the connecting rod (47); two fixed rods (45) symmetrically arranged are slidably penetrated inside the fixed plate (46); the bottoms of the two fixed rods (45) are fixedly connected to the same vibration-compression plate (41); the vibration-compression plate (41) is sleeved on the outside of the fixed plate (46); the top of the fixed rod (45) is fixedly connected to a limiting block (43); the bottom of the limiting block (43) and the top of the fixed plate (46) are fixedly connected to the same spring (44); the spring (44) is sleeved on the outside of the fixed rod (45); one side of the vibration-compression plate (41) is fixedly connected to a side block (42); the side block (42) is used in conjunction with the eccentric plate (55).

7. The method for preparing a sandstone sound-absorbing decorative soft board according to claim 4, characterized in that: The support assembly includes an electric push rod (13) fixedly connected to the inner wall at the bottom of the main frame (31), the piston rod of the electric push rod (13) is fixedly connected to a support push plate (14), and the support push plate (14) is located below the mold box (11). The inner walls on both sides of the main frame (31) are provided with a first slide groove (17), and the top inner wall of the first slide groove (17) is provided with a second slide groove (18) connected to each other. Two symmetrically arranged sliders (15) are fixedly connected to both sides of the mold box (11), and the sliders (15) are slidably connected to the first slide groove (17) and the second slide groove (18). A triangular block (16) is fixedly connected to one side of the top of the mold box (11).

8. The method for preparing a sandstone sound-absorbing decorative soft board according to claim 4, characterized in that: The blocking component comprises a first transverse groove (62), a vertical groove (63) and a second transverse groove (64) which are opened on one side of the material distribution box (51); the first transverse groove (62) and the second transverse groove (64) are arranged in parallel; the first transverse groove (62) is located directly above the second transverse groove (64); the vertical groove (63) is located at one end of the first transverse groove (62) and the second transverse groove (64) and is connected to the first transverse groove (62) and the second transverse groove (64); one side of the first transverse groove (62), the vertical groove (63) and the second transverse groove (64) is provided with a same connected rectangular cavity (61); the first transverse groove (62) is slidably connected with a first rectangular block (65) inside; the first rectangular block (65) is A sleeve (70) is fixedly connected to the bottom, an inner rod (69) is slidably penetrated through the bottom of the sleeve (70), a tension spring (66) is fixedly connected between the top of the inner rod (69) and the inner wall of the top of the sleeve (70), a second rectangular hole (67) is fixedly connected to the bottom of the inner rod (69), the second rectangular hole (67) is slidably connected to the inside of the second transverse groove (64) and the vertical groove (63), one end of the second rectangular hole (67) is fixedly connected to an L-shaped sealing plate (71), the L-shaped sealing plate (71) is used to block the opening, and an extension plate (68) is fixedly connected to one side of the bottom of the L-shaped sealing plate (71), and the extension plate (68) is used in conjunction with the triangular block (16).

9. The method for preparing a sandstone sound-absorbing decorative soft board according to claim 4, characterized in that: The inner walls on both sides of the main frame (31) and the extension frame (32) are provided with a third sliding groove (34), and the inside of the third sliding groove (34) is slidably connected with a threaded block (36). The two sides of the two threaded blocks (36) close to each other are fixedly connected to the two sides of the cloth box (51), and the same screw rod (35) is rotatably connected between the inner walls on both sides of one of the third sliding grooves (34), and the screw rod (35) is threadedly passed through the corresponding threaded block (36). One side of the extension frame (32) is fixedly connected with a first servo motor (33), and the output shaft of the first servo motor (33) is fixedly connected to one end of the screw rod (35).

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