Molding equipment for autoclaved aerated concrete block production

Abstract

The invention relates to the field of autoclaved aerated concrete block production equipment, and discloses forming equipment for autoclaved aerated concrete block production, which comprises a first portal frame, a second portal frame and a moving track, the first portal frame is arranged above one side of the moving track, and the second portal frame is arranged above the other side of the moving track. A distribution hopper is fixedly installed at the top of the first portal frame, a corrugated pipe is fixedly installed at the bottom end of the distribution hopper, a discharge pipe is fixedly installed at the bottom end of the corrugated pipe, a movable plate is movably installed in the middle of the second portal frame, and a barrel is fixedly installed in the middle of the second portal frame. And a variable frequency motor is fixedly mounted at the top end of the barrel. The slurry mixing uniformity can be improved, material distribution is optimized, material missing and material stacking are avoided, the vibration compacting effect can be enhanced through resonance torque increasing and frequency and amplitude adjusting, different working conditions are adapted, the automation degree is high, the quality can be improved, the rejection rate is reduced, the efficiency is improved, and manpower is reduced.

Description

Technical Field

[0001] This invention relates to the field of autoclaved aerated concrete (AAC) block production equipment, specifically to a molding device for producing AAC blocks. Background Technology

[0002] Autoclaved aerated concrete (AAC) blocks, as a lightweight, high-strength, and thermally insulating new building material, are widely used in wall construction for various building projects, including residential, commercial, and industrial buildings, due to their energy-saving, environmentally friendly, and convenient construction advantages. With the continuous growth in the construction industry's demand for green building materials, the market demand for AAC blocks has been increasing year by year, which also places higher demands on the molding quality, production efficiency, and adaptability of its production equipment. The molding process, as the core link in AAC block production, directly determines the density uniformity, compactness, and subsequent performance of the finished product. However, current AAC block molding equipment on the market still has many technical pain points in practical applications, making it difficult to meet the demands for efficient and high-quality production.

[0003] In the raw material mixing and spreading stages, traditional molding equipment often uses a single spiral blade or a non-stirring structure for the spreading hopper. On the one hand, the single spiral blade can only achieve unidirectional conveying of the slurry, which cannot fully agitate the slurry. This easily leads to uneven mixing of aggregates and cementitious materials in the slurry, resulting in local agglomeration and an unbalanced composition of the subsequently formed green body. On the other hand, the discharge pipe of traditional equipment is mostly fixed or can only achieve single-direction adjustment. During spreading, the material usually spreads from the center of the mold to the surrounding areas. Due to the fluidity of the slurry and the influence of gravity, the corners and edges of the mold are prone to insufficient slurry filling, while the center of the mold experiences excessive slurry accumulation, resulting in "material piling". This leads to significant density differences in different parts of the green body, which can easily cause cracking and deformation after autoclaving. This significantly reduces the structural stability and mechanical properties of the finished block, while also increasing the scrap rate and wasting raw materials and production costs.

[0004] In the vibration compaction stage, existing equipment often uses a single motor to directly drive the vibrator, resulting in fixed vibration frequency and amplitude, which cannot be flexibly adjusted according to the characteristics of the slurry. On the one hand, when dealing with slurries with high viscosity (such as in low-temperature winter environments where the slurry has poor fluidity and increased viscosity), the fixed vibration parameters are insufficient to provide sufficient vibration torque. The vibrator is easily affected by the slurry load resistance, leading to a weakened vibration amplitude. This prevents the slurry from fully expelling air bubbles, resulting in insufficient compaction of the block and high internal porosity, directly affecting the compressive strength and durability of the blocks. On the other hand, in high-temperature summer environments, the slurry has good fluidity, and fixed high-frequency, large-amplitude vibration can easily cause excessive air bubbles to rise to the surface, forming numerous pores on the block surface, which also affects the quality of the block forming. In addition, although some equipment attempts to change the vibration frequency by adjusting the motor speed, it lacks effective means to control the vibration amplitude, failing to achieve coordinated adjustment of "frequency-amplitude," resulting in poor adaptability and difficulty in meeting the vibration compaction requirements of slurries with different seasons and mix proportions.

[0005] Meanwhile, traditional molding equipment has a low degree of automation. The transfer of molds between the material feeding station and the vibration station relies heavily on manual pushing or simple handling devices. This not only consumes a lot of manpower, but also has low transfer efficiency and poor positioning accuracy, which can easily lead to mold docking deviations and affect the continuity of the material feeding and vibration processes. The position adjustment of the discharge pipe during material feeding and the raising and lowering of the vibrator during vibration also require manual assistance, resulting in large operational errors and further reducing production efficiency and the stability of molding quality. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a molding equipment for the production of autoclaved aerated concrete blocks, which solves problems such as uneven mixing of raw materials, easy material shortage and accumulation, difficulty in adjusting vibration parameters and poor adaptability, and low degree of automation in existing equipment, thereby improving the quality and efficiency of block production.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a molding device for producing autoclaved aerated concrete (AAC) blocks, comprising a first gantry frame, a second gantry frame, and a moving track. The first gantry frame is positioned above one side of the moving track, and the second gantry frame is positioned above the other side of the moving track. A feeding hopper is fixedly installed on the top of the first gantry frame, a corrugated pipe is fixedly installed at the bottom of the feeding hopper, and a discharge pipe is fixedly installed at the bottom of the corrugated pipe. A movable plate is movably installed in the middle of the second gantry frame, and a cylinder is fixedly installed in the middle of the second gantry frame. A variable frequency motor is fixedly installed at the top of the cylinder, and the drive end of the variable frequency motor extends into the interior of the cylinder and is fixedly fitted with a drive gear. A movable plate is movably installed on one side of the inner top of the cylinder. A short shaft is movably mounted on the cylinder. A driven gear is fixedly mounted on the outer diameter of the middle part of the short shaft, and the driven gear meshes with the inner end of the driving gear. A cam is fixedly mounted on the end of the short shaft, and a first connecting rod is movably mounted on the end of the cam. A central shaft is movably mounted in the middle of the cylinder. A second connecting rod is fixedly mounted on the top of the central shaft, and the end of the second connecting rod is movably mounted on the end of the first connecting rod. An output shaft is movably mounted on the bottom of the cylinder. The inner end of the central shaft and the output shaft are connected by a torsion beam. A spring is fixedly mounted in the middle of the torsion beam. The end of the output shaft extends to the outside of the cylinder and is fixedly mounted on a crossbeam. Movable blocks are movably mounted on both sides of the crossbeam through guide rods. Vibration rods are fixedly mounted on the bottom ends of the movable blocks.

[0008] Preferably, a fixed bracket is fixedly installed on the top of the cloth hopper, and a rotating shaft is movably installed on both sides of the bottom end of the fixed bracket. A variable pitch spiral blade is fixedly installed on the outer diameter of the rotating shaft, and a transmission gear is fixedly installed on the top of the rotating shaft, with the inner ends of the two transmission gears meshing together. A stirring motor is fixedly installed on one side above the fixed bracket, and the drive end of the stirring motor is fixedly installed on the top of the rotating shaft on one side.

[0009] Preferably, an upper fixing plate is fixedly installed on the lower outer diameter of the fabric hopper, and a lower fixing plate is fixedly installed on the outer diameter of the discharge pipe. Three upper hinge supports are evenly fixedly installed at the bottom end of the upper fixing plate, and electric cylinders are movably installed on both sides of the bottom end of the upper hinge supports. Three lower hinge supports are evenly fixedly installed at the top end of the lower fixing plate, and the ends of the electric cylinders are movably installed at the top end of the corresponding lower hinge supports.

[0010] Preferably, lifting cylinders are fixedly installed on both sides of the top of the second gantry frame, and the drive ends of the lifting cylinders are fixedly installed on both sides of the top of the movable plate.

[0011] Preferably, a bidirectional threaded rod is movably installed inside the crossbar, and the outer diameters on both sides of the bidirectional threaded rod are respectively engaged with the interior of two movable blocks. An adjusting motor is fixedly installed on one side of the crossbar, and the drive end of the adjusting motor is fixedly installed on one end of the bidirectional threaded rod.

[0012] Preferably, a track trolley is movably mounted on the top of the moving track, and a mold is provided on the top of the track trolley.

[0013] This invention provides a molding device for producing autoclaved aerated concrete (AAC) blocks. It has the following advantages:

[0014] 1. This invention achieves synchronous agitation of the two blades by setting a double rotating shaft and variable pitch spiral blade structure at the top of the feeding hopper, in conjunction with the coordinated transmission of the stirring motor and the transmission gear. This significantly improves the mixing degree of the raw materials of the concrete block mortar and avoids local agglomeration of the raw materials. At the same time, the variable pitch spiral blade adopts a "wide at the top and narrow at the bottom" pitch design (large pitch at the upper feeding end and small pitch at the lower discharging end), so that the mortar forms a "stirring flow" during the transportation process, effectively reducing the phenomenon of particle settling, reducing the density difference between the upper and lower parts of the block from the source, ensuring the structural consistency of the finished autoclaved aerated concrete block, and reducing the risk of cracking and deformation in later use.

[0015] 2. The adjustment structure of the discharge pipe in this invention adopts a combination design of "upper fixed plate + lower fixed plate + six sets of electric cylinders". Through the coordinated extension and retraction of the six electric cylinders, the discharge pipe can be precisely controlled to achieve rotational offset and tilting movements in six directions. This design allows the discharge pipe to start distributing material from the corners of the mold and gradually fill towards the center, completely solving the pain point of material shortage or accumulation at the corners and edges of the mold frame during material distribution in traditional equipment. This ensures uniform filling of slurry in the mold, improves the overall molding quality of the blank, and reduces the scrap rate caused by uneven material distribution.

[0016] 3. The vibration drive system of the present invention uses a combination of torsion beam and spring sheet to store and transmit torque when the central shaft drives the torsion beam to deflect. When the deflection speed of the torsion beam increases, the output shaft and the cross frame form a resonance at the same frequency, which greatly increases the output torque. This can effectively counteract the load resistance of viscous slurry on the vibrator, avoid the problem of vibration weakening caused by excessive load on the vibrator, significantly improve the density of the slurry, and reduce air bubbles and pores inside the blank.

[0017] 4. This invention allows for real-time adjustment of the rotation frequency of the variable frequency motor, directly controlling the vibration frequency of the vibrating rod. Furthermore, by adjusting the rotation of the bidirectional threaded rod driven by the motor, and using guide rods for limiting, the two vibrating rods move synchronously inward and outward, changing the vibration amplitude. For example, in summer when the slurry has good fluidity, a "low frequency + small amplitude" approach can be used to prevent excessive air bubbles from rising; in winter when the slurry has poor fluidity, a "high frequency + large amplitude" approach can be used to enhance the slurry's fluidity, achieving precise vibration control under different working conditions and improving the equipment's adaptability to different seasons and slurry ratios. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the fabric hopper in this invention;

[0020] Figure 3 This is a schematic diagram of the structure of the discharge pipe in this invention;

[0021] Figure 4 This is a schematic diagram of the crossbar structure in this invention;

[0022] Figure 5 This is a schematic diagram of the internal structure of the cylinder in this invention.

[0023] The components are as follows: 1. First gantry frame; 2. Feed hopper; 3. Fixed bracket; 4. Rotating shaft; 5. Variable pitch spiral blade; 6. Transmission gear; 7. Mixing motor; 8. Bellows; 9. Discharge pipe; 10. Upper fixed plate; 11. Lower fixed plate; 12. Upper hinge support; 13. Electric cylinder; 14. Lower hinge support; 15. Second gantry frame; 16. Movable plate; 17. Lifting cylinder; 18. Cylinder; 19. Variable frequency motor; 20. Drive gear; 21. Short shaft; 22. Driven gear; 23. Cam; 24. First connecting rod; 25. Central shaft; 26. Second connecting rod; 27. Torsion beam; 28. Spring; 29. ​​Output shaft; 30. Crossbeam; 31. Bidirectional threaded rod; 32. Movable block; 33. Vibrating rod; 34. Adjusting motor; 35. Moving track; 36. Track trolley; 37. Mold. Detailed Implementation

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example:

[0026] Please see the appendix Figure 1 -Appendix Figure 5 This invention provides a molding equipment for producing autoclaved aerated concrete blocks, such as... Figure 1As shown, the system includes a first gantry 1, a second gantry 15, and a moving track 35. The first gantry 1 serves as the core support structure for the material feeding process, supporting the material feeding hopper 2 and related material feeding adjustment components to ensure stable material feeding. The second gantry 15 provides the installation foundation for the vibration compaction process, supporting the movable plate 16, cylinder 18, and vibrator 33, enabling vibration compaction of the slurry. The moving track 35 serves as the movement path for the track trolley 36, guiding the transfer of the mold 37 between the material feeding station and the vibration station, ensuring the continuity of the production process. The first gantry 1 is positioned above one side of the moving track 35, and the second gantry 15 is positioned above the other side of the moving track 35. A feeding hopper 2 is fixedly installed on the top of the gantry frame 1. The feeding hopper 2 serves as a temporary storage and preliminary processing container for the concrete block grout raw materials. Its internal space can hold sufficient grout to provide raw material reserves for subsequent uniform grout distribution. A corrugated pipe 8 is fixedly installed at the bottom of the feeding hopper 2. The corrugated pipe 8 has good flexibility and can adapt to the rotation, offset, and tilting movements of the discharge pipe 9 in six directions. When adjusting the position of the discharge pipe 9, it ensures stable grout delivery without damage due to movement. The discharge pipe 9 is fixedly installed at the bottom of the corrugated pipe 8. The discharge pipe 9 is the final output channel for the grout entering the mold 37. Adjusting its position allows for gradual grout distribution from the corners to the center of the mold 37, ensuring uniform grout filling within the mold 37. The second gantry... A movable plate 16 is movably installed in the middle of the gantry 15. Driven by the lifting cylinder 17, the movable plate 16 moves up and down along the second gantry 15, thereby synchronously raising and lowering the cylinder 18 and the vibrating rod 33 below it, enabling the vibrating rod 33 to insert into or detach from the slurry. The cylinder 18 is fixedly installed in the middle of the second gantry 15. The cylinder 18 provides a closed installation and protection space for vibration drive components such as the variable frequency motor 19, the drive gear 20, and the driven gear 22, preventing external dust, slurry, and other impurities from entering and affecting the operation of the components. It also provides stable support for the coordinated operation of each transmission component. A variable frequency motor 19 is fixedly installed at the top of the cylinder 18. The variable frequency motor 19 serves as the power source for the vibration drive system and can adjust its rotation frequency... The frequency of vibration of the vibrating rod 33 is adjusted by changing the speed of the subsequent transmission components to adapt to the vibration requirements under different working conditions. The drive end of the variable frequency motor 19 extends into the interior of the cylinder 18 and is fixedly mounted with a drive gear 20. The drive gear 20 rotates synchronously with the drive end of the variable frequency motor 19. Through meshing with the driven gear 22, the power of the variable frequency motor 19 is transmitted to the short shaft 21, providing power for the rotation of the short shaft 21. The short shaft 21 is movably mounted on one side of the inner top of the cylinder 18. The short shaft 21 can rotate around its own axis under the transmission action of the drive gear 20 and the driven gear 22. One end of the short shaft 21 is connected to the driven gear 22, and the other end is mounted with a cam 23, which plays a dual role in power transmission and driving the cam 23.A driven gear 22 is fixedly mounted on the outer diameter of the middle part of the short shaft 21, and the driven gear 22 meshes with the inner end of the driving gear 20. Through meshing with the driving gear 20, the driven gear 22 converts the rotational motion of the driving gear 20 into its own rotational motion, thereby driving the short shaft 21 to rotate synchronously, realizing the transmission of power between different components. A cam 23 is fixedly mounted on the end of the short shaft 21. When the cam 23 rotates with the short shaft 21, its eccentric structure pushes one end of the first connecting rod 24 to perform a circular motion, converting the rotational motion into the reciprocating oscillation of the first connecting rod 24, providing power for the movement of subsequent linkage mechanisms. The first connecting rod 24 is movably mounted on the end of the cam 23. One end of the first connecting rod 24 is movably connected to the cam 23, and the other end is movably connected to the second connecting rod 26. The moving connection transmits the reciprocating motion generated by the rotation of the cam 23 to the second connecting rod 26, further transmitting power. A central shaft 25 is movably mounted in the middle of the cylinder 18. Driven by the second connecting rod 26, the central shaft 25 can reciprocate at a small angle. Its top end is connected to the second connecting rod 26, and its bottom end is connected to the output shaft 29 via a torsion beam 27, serving to transmit the oscillating motion and connect the torsion beam 27. The top end of the central shaft 25 is fixedly mounted with the second connecting rod 26, and the end of the second connecting rod 26 is movably mounted to the end of the first connecting rod 24. After receiving the reciprocating motion transmitted by the first connecting rod 24, the second connecting rod 26 drives the central shaft 25 to reciprocate at a small angle around its own axis. It is the key component for converting the motion of the linkage mechanism into the oscillation of the central shaft 25. (Cylinder 18) An output shaft 29 is movably installed at the inner bottom of the cylinder. One end of the output shaft 29 is connected to the central shaft 25 via a torsion beam 27, and the other end extends to the outside of the cylinder 18 and connects to the crossbeam 30. It can convert the torque transmitted by the torsion beam 27 into its own oscillation, thereby driving the crossbeam 30 and the vibrating rod 33 to vibrate synchronously. The inner ends of the central shaft 25 and the output shaft 29 are connected via the torsion beam 27. The torsion beam 27 has a certain degree of elasticity. When the central shaft 25 oscillates, the torsion beam 27 deflects and stores torque, which is then transmitted to the output shaft 29. Simultaneously, as the deflection speed increases, the central shaft 25 and the output shaft 29 can resonate at the same frequency, increasing the output torque. A spring plate 28 is fixedly installed in the middle of the torsion beam 27. The spring plate 28 enhances the elastic performance of the torsion beam 27 and assists the torsion beam 27 in... During deflection, torque is better stored and released, improving the service life and transmission stability of the torsion beam 27. The end of the output shaft 29 extends to the outside of the cylinder 18 and is fixedly mounted with a crossbeam 30. The crossbeam 30 serves as the mounting carrier for the vibrating rod 33. It has a bidirectional threaded rod 31 and a guide rod installed inside, which can realize the movement adjustment of the movable block 32, thereby changing the position of the vibrating rod 33. At the same time, it swings with the output shaft 29, causing the vibrating rod 33 to vibrate synchronously. Movable blocks 32 are movably mounted on both sides of the crossbeam 30 through guide rods. The movable blocks 32 can move along the inside of the crossbeam 30 under the drive of the bidirectional threaded rod 31 and the limiting action of the guide rod. The vibrating rod 33 is fixedly mounted at its bottom end. By moving itself, it drives the vibrating rod 33 to move synchronously in and out, realizing the adjustment of the vibration amplitude.Each movable block 32 has a vibrating rod 33 fixedly installed at its bottom. After being inserted into the slurry, the vibrating rod 33 vibrates with the swinging of the crossbeam 30, transferring vibrational energy to the slurry. This causes air bubbles to escape and particles to bind tightly, achieving vibrational compaction of the slurry.

[0027] In this embodiment, a fixed bracket 3 is fixedly installed on the top of the feeding hopper 2. The fixed bracket 3 provides stable installation support for the rotating shaft 4, stirring motor 7, and other stirring components, ensuring that the components will not shift during the stirring process and guaranteeing stable stirring operation. Rotating shafts 4 are movably installed on both sides of the bottom end of the fixed bracket 3. The rotating shafts 4 can rotate synchronously under the action of the stirring motor 7 and the transmission gear 6. Variable pitch spiral blades 5 are installed on their outer diameter. The variable pitch spiral blades 5 rotate by their own rotation, thereby achieving the stirring and conveying of the slurry. Variable pitch spiral blades 5 are fixedly installed on the outer diameter of the rotating shaft 4. When the variable pitch spiral blades 5 rotate with the rotating shaft 4, they can, on the one hand, stir the slurry in the feeding hopper 2, preventing localized clumping of raw materials and improving mixing uniformity; on the other hand, their "wide at the top and low at the bottom" design... The narrow pitch design allows the slurry to form a "stirring flow," reducing particle settling. A transmission gear 6 is fixedly installed at the top of each rotating shaft 4, and the inner ends of the two transmission gears 6 are meshed together. This meshing of the two transmission gears 6 allows the rotational motion of one rotating shaft 4 to be transmitted to the other rotating shaft 4, achieving synchronous rotation of the two rotating shafts 4. This ensures consistent movement of the two variable-pitch spiral blades 5, improving stirring and conveying efficiency. A stirring motor 7 is fixedly installed on one side of the fixed bracket 3, and the drive end of the stirring motor 7 is fixedly installed at the top of one rotating shaft 4. The stirring motor 7 serves as the power source for the stirring system. After starting, it drives one rotating shaft 4 to rotate, and then, through the meshing of the transmission gears 6, drives the other rotating shaft 4 to rotate synchronously, providing power for the rotation of the variable-pitch spiral blades 5.

[0028] Furthermore, an upper fixing plate 10 is fixedly installed on the lower outer diameter of the fabric hopper 2. The upper fixing plate 10 is fixedly connected to the fabric hopper 2, and an upper hinge support 12 is installed at its bottom end, providing a fixed mounting point for one end of the electric cylinder 13 to ensure stable support during the extension and retraction of the electric cylinder 13. A lower fixing plate 11 is fixedly installed on the outer diameter of the discharge pipe 9, and the lower fixing plate 11 is fixedly connected to the discharge pipe 9. A lower hinge support 14 is installed at its top end, providing a movable mounting point for the other end of the electric cylinder 13, so that the electric cylinder 13 can drive the lower fixing plate 11 and the discharge pipe 9 to move when it extends and retracts. Three upper hinge supports 12 are evenly fixedly installed at the bottom end of the upper fixing plate 10. The upper hinge supports 12 serve as connecting parts between the electric cylinder 13 and the upper fixing plate 10, enabling a movable connection between the electric cylinder 13 and the upper fixing plate 10, allowing the electric cylinder 13 to deflect at a certain angle during the extension and retraction process. Electric cylinders 13 are movably installed on both sides of the bottom end of the upper hinge support 12. The six electric cylinders 13 work together and, through different telescopic combinations, can control the lower fixed plate 11 and the discharge pipe 9 to achieve rotational offset and tilting actions in six directions, thereby adjusting the material distribution position of the discharge pipe 9. Three lower hinge supports 14 are evenly fixedly installed on the top of the lower fixed plate 11. The lower hinge supports 14 serve as connecting parts between the electric cylinders 13 and the lower fixed plate 11, realizing the movable connection between the electric cylinders 13 and the lower fixed plate 11, ensuring that the electric cylinders 13 can effectively drive the lower fixed plate 11 and the discharge pipe 9 to move when they telescopic. The ends of the electric cylinders 13 are movably installed on the top of the corresponding lower hinge supports 14. Through the movable connection between the ends of the electric cylinders 13 and the lower hinge supports 14, the telescopic force of the electric cylinders 13 can be stably transmitted to the lower fixed plate 11, thereby realizing the position adjustment of the discharge pipe 9.

[0029] Furthermore, lifting cylinders 17 are fixedly installed on both sides of the top of the second gantry frame 15, and the driving ends of the lifting cylinders 17 are fixedly installed on both sides of the top of the movable plate 16. The lifting cylinders 17 serve as the power source for the lifting of the movable plate 16. Through their own extension and retraction, they can drive the movable plate 16 to move up and down along the second gantry frame 15, thereby driving the cylinder 18, vibrator 33 and other components to lift up and down synchronously, so as to realize the operation of inserting or removing the vibrator 33 into the slurry.

[0030] Furthermore, a bidirectional threaded rod 31 is movably installed inside the cross frame 30, and the outer diameters on both sides of the bidirectional threaded rod 31 are respectively meshed with the interior of two movable blocks 32. The bidirectional threaded rod 31 is composed of two threaded rods with opposite helical directions. When it rotates under the drive of the adjusting motor 34, it can drive the two movable blocks 32 to move synchronously inward or outward along the guide rod through meshing transmission, thereby changing the position of the vibrating rod 33. The adjusting motor 34 is fixedly installed on one side of the cross frame 30, and the driving end of the adjusting motor 34 is fixedly installed on one end of the bidirectional threaded rod 31. The adjusting motor 34 serves as the power source for the rotation of the bidirectional threaded rod 31. After starting, it can drive the bidirectional threaded rod 31 to rotate around its own axis, providing power for the movement of the movable blocks 32 and the adjustment of the position of the vibrating rod 33.

[0031] Furthermore, a track trolley 36 is movably mounted on the top of the moving track 35. The track trolley 36 can move along the moving track 35 between the first gantry 1 and the second gantry 15. A mold 37 is placed on its top, which is used to drive the mold 37 to be transferred between the material feeding station and the vibration station, so as to realize the continuous production process. The mold 37 is set on the top of the track trolley 36. The mold 37 serves as the forming carrier of the concrete block blank. It can accommodate the slurry discharged from the discharge pipe 9. After vibration and compaction, it forms a blank that meets the specifications. Its shape and size are designed according to the requirements of the final block product.

[0032] Working principle:

[0033] First, control the track trolley 36 to move on the moving track 35, transporting the mold 37 to below the first gantry 1. Concrete block grout raw materials are then introduced into the feeding hopper 2 through a pipe. The mixing motor 7 is started, driving the rotating shaft 4 on one side to rotate. The meshing of the transmission gear 6 causes the two rotating shafts 4 to move synchronously, thereby driving the two variable-pitch spiral blades 5 to follow suit. The double-blade agitation improves the mixing degree of the grout raw materials. Simultaneously, the variable-pitch spiral blades 5 have a large pitch at the upper feed end and a small pitch at the lower discharge end, creating a "stirred flow" in the grout during transport, reducing particle settling and lowering the density difference between the upper and lower parts of the block. The grout enters the corrugated pipe 8 through the feeding hopper 2 and is finally discharged through the discharge pipe 9. At this point, the electric cylinder is activated. 13. Through the coordinated extension and retraction of six electric cylinders 13, the lower fixed plate 11 and the discharge pipe 9 can be controlled to rotate, shift, and tilt in six directions. This allows the discharge pipe 9 to start distributing material from the corners of the mold 37 and gradually fill towards the center, improving the uniformity of material distribution within the mold 37 and preventing material shortages or accumulations at the corners and edges of the mold frame. After material distribution is completed, the track trolley 36 moves the mold 37 to below the second gantry frame 15. At this time, the lifting cylinder 17 drives the movable plate 16 to descend, causing the cylinder 18 to descend and inserting the two vibrating rods 33 into the slurry. Subsequently, the variable frequency motor 19 is driven, which in turn drives the drive gear 20 to rotate, causing the driven gear 22 and the short shaft 21 to rotate. The short shaft 21 will drive the cam 2 3. Rotation: When the short shaft 21 rotates, it drives the cam 23 and one end of the first connecting rod 24 to rotate. The end of the first connecting rod 24 drives one end of the second connecting rod 26 to follow the movement, thereby causing the other end of the second connecting rod 26 and the central shaft 25 to reciprocate at a small angle. When the central shaft 25 starts to swing, it drives one end of the torsion beam 27 to deflect, storing and transmitting torque to the other end of the torsion beam 27, causing the output shaft 29 and the crossbeam 30 to swing accordingly. This causes the two vibrating rods 33 at the bottom of the crossbeam 30 to swing rapidly, achieving vibration compaction of the slurry. As the deflection speed of the torsion beam 27 increases, the swings at both ends gradually become synchronized. The resulting resonance increases the torque output by the output shaft 29, which can effectively counteract the viscous slurry's impact on the vibrating rods 33. The load is adjusted to improve the vibration compaction effect. Furthermore, the bidirectional threaded rod 31, driven by the motor 34, can be rotated. The bidirectional threaded rod 31 consists of two threaded rods with opposite helical directions. When it rotates, the guide rod's limiting action causes the two vibrating rods 33 to move synchronously inward or outward. As the position of the vibrating rods 33 changes, the vibration amplitude generated by the crossbeam 30 also changes. The rotation frequency is adjusted in real-time by the variable frequency motor 19, thus adjusting the vibration frequency and amplitude of the vibrating rods 33. This improves the vibration compaction effect on the slurry under different conditions. For example, in summer, when the slurry has good fluidity, a low frequency and small amplitude can prevent excessive floating of air bubbles within the slurry. In winter, when the slurry has poor fluidity...At this point, a higher frequency and greater amplitude are used to enhance the fluidity of the slurry.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A molding apparatus for producing autoclaved aerated concrete blocks, comprising a first gantry (1), a second gantry (15) and a moving rail (35), characterized in that, The first gantry (1) is set above one side of the moving track (35), and the second gantry (15) is set above the other side of the moving track (35). A cloth hopper (2) is fixedly installed on the top of the first gantry (1), and a corrugated pipe (8) is fixedly installed at the bottom of the cloth hopper (2). A discharge pipe (9) is fixedly installed at the bottom of the corrugated pipe (8). A movable plate (16) is movably installed in the middle of the second gantry (15). A cylinder (18) is fixedly installed in the middle of the second gantry (15). A variable frequency motor (19) is fixedly installed at the top of the cylinder (18). The drive end of the variable frequency motor (19) extends into the inside of the cylinder (18) and is fixedly installed with a drive gear (20). A short shaft (21) is movably installed on one side of the inner top of the cylinder (18). A driven gear (22) is fixedly installed on the outer diameter of the middle part of the short shaft (21), and the driven gear (22) and the drive gear ( The inner ends of the short shaft (21) are meshed and connected. A cam (23) is fixedly installed at the end of the short shaft (21). A first connecting rod (24) is movably installed at the end of the cam (23). A central shaft (25) is movably installed in the middle of the inner part of the cylinder (18). A second connecting rod (26) is fixedly installed at the top of the central shaft (25) and the end of the second connecting rod (26) is movably installed at the end of the first connecting rod (24). An output shaft (29) is movably installed at the bottom of the inner part of the cylinder (18). The inner ends of the central shaft (25) and the output shaft (29) are connected by a torsion beam (27). A spring piece (28) is fixedly installed in the middle of the torsion beam (27). The end of the output shaft (29) extends to the outside of the cylinder (18) and is fixedly installed with a crossbeam (30). Movable blocks (32) are movably installed on both sides of the inner part of the crossbeam (30) through guide rods. Vibration rods (33) are fixedly installed at the bottom of the movable blocks (32).

2. The forming apparatus for producing an autoclaved aerated concrete block according to claim 1, wherein A fixed bracket (3) is fixedly installed on the top of the cloth hopper (2). Rotating shafts (4) are movably installed on both sides of the bottom end of the fixed bracket (3). Variable pitch spiral blades (5) are fixedly installed on the outer diameter of the rotating shafts (4). Transmission gears (6) are fixedly installed on the top of the rotating shafts (4), and the inner ends of the two transmission gears (6) are meshed and connected. A stirring motor (7) is fixedly installed on one side above the fixed bracket (3), and the driving end of the stirring motor (7) is fixedly installed on the top of the rotating shaft (4) on one side.

3. The forming apparatus for producing an autoclaved aerated concrete block according to claim 1, wherein An upper fixing plate (10) is fixedly installed on the lower outer diameter of the fabric hopper (2), and a lower fixing plate (11) is fixedly installed on the outer diameter of the discharge pipe (9). Three upper hinge supports (12) are evenly fixedly installed at the bottom end of the upper fixing plate (10). Electric cylinders (13) are movably installed on both sides of the bottom end of the upper hinge supports (12). Three lower hinge supports (14) are evenly fixedly installed at the top end of the lower fixing plate (11). The ends of the electric cylinders (13) are movably installed at the top end of the corresponding lower hinge supports (14).

4. The forming apparatus for producing an autoclaved aerated concrete block according to claim 1, wherein The top of the second gantry (15) is fixedly provided with lifting cylinders (17) on both sides, and the driving ends of the lifting cylinders (17) are fixedly provided on both sides of the top of the movable plate (16).

5. The forming apparatus for producing an autoclaved aerated concrete block according to claim 1, wherein A bidirectional threaded rod (31) is movably arranged on the inner side of the cross frame (30), and the outer sides of the bidirectional threaded rod (31) are movably connected with the inner sides of two movable blocks (32); an adjusting motor (34) is fixedly arranged on one side of the cross frame (30), and the driving end of the adjusting motor (34) is fixedly arranged on one end of the bidirectional threaded rod (31).

6. The forming apparatus for producing an autoclaved aerated concrete block according to claim 1, wherein A track trolley (36) is movably arranged on the top of the moving track (35), and a mold (37) is arranged on the top of the track trolley (36).

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