An aerated concrete block production pouring device

Abstract

The application discloses an aerated concrete block production pouring device and relates to the technical field of aerated concrete block production. The device comprises a rack and a mold box. The inner side of the rack is provided with a bearing table for bearing the mold box for pouring. The lower end of the bearing table is fixedly connected with spherical concave seats at four corners. The device is provided with a steady flow buffer tank downstream of a mixing tank. The inside of the steady flow buffer tank is provided with staggered distribution baffles and flow uniformizing plates with flow holes. The flow direction of slurry is changed multiple times by the baffles, the falling impact and local high-speed flow are weakened, the slurry cross-section flow velocity distribution is uniformized by the flow uniformizing plates, the flow velocity fluctuation and local settlement in the slurry conveying process are significantly reduced, the end pile-up phenomenon is reduced from the source, the inside of the pouring cover is provided with a spindle-shaped flow dividing pier, the slurry flow channel is divided into two equal-width pouring flow channels, the spindle-shaped flow dividing structure can make the slurry flow dividing process transition smoothly, and the turbulence and local retention are reduced.

Description

Technical Field

[0001] This invention relates to the field of aerated concrete block production technology, specifically to an aerated concrete block production and casting device. Background Technology

[0002] Autoclaved aerated concrete (AAC) blocks are a type of lightweight wall material made primarily from siliceous materials, calcareous materials, foaming agents, and water. The process involves batching, mixing, pouring, static curing, cutting, and autoclaving. In the production of AAC blocks, the pouring process directly affects the uniformity of pores inside the block, the consistency of the block height, and the quality of subsequent cutting and shaping.

[0003] Currently, common aerated concrete block casting methods mostly employ fixed casting pipes or ordinary mobile casting heads to directly inject slurry into the mold box. Because aerated concrete slurry contains fine mortar, lime, cement, and gas-generating components, problems such as localized settlement, uneven flow rate, or end-point accumulation are prone to occur during slurry transportation and casting. Furthermore, there is usually a significant drop between the ordinary casting head and the bottom of the mold box or the slurry surface. High-speed impact of the slurry on the bottom of the mold box or the surface of the slurry already inside the mold box can easily disrupt the bubble structure formed in the early stages of gas generation, leading to uneven porosity, localized compaction, or surface collapse within the block. In addition, existing casting equipment often struggles to adaptively adjust to changes in mold box position deviation, mold box tilt, and casting liquid level, easily resulting in inconsistent slurry height within the mold box, insufficient filling of corner areas, or localized overflow. Therefore, this paper proposes an aerated concrete block production casting device to address the aforementioned problems. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides an aerated concrete block production and casting device. This solution solves the problems mentioned in the background section. Currently, common aerated concrete block casting methods often use fixed casting pipes or ordinary mobile casting heads to directly inject slurry into the mold box. Because aerated concrete slurry contains fine mortar, lime, cement, and gas-generating components, problems such as localized settling, uneven flow rate, or end-point accumulation easily occur during slurry transportation and casting. Furthermore, there is usually a significant drop between the ordinary casting head and the bottom of the mold box or the slurry surface. High-speed impact of the slurry on the bottom of the mold box or the surface of the slurry already inside the mold box can easily damage the bubble structure formed in the early stages of gas generation, leading to uneven internal porosity, localized compaction, or surface collapse of the block. In addition, existing casting equipment often cannot adaptively adjust to changes in mold box position deviation, mold box tilt, and casting liquid level, easily resulting in inconsistent slurry height within the mold box, insufficient filling of corner areas, or localized overflow.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: An apparatus for producing and casting aerated concrete blocks, comprising: The frame and the mold box are provided. The inner side of the frame is provided with a support platform for supporting the mold box for casting. Spherical concave seats are fixedly connected to the four corners of the lower end of the support platform. Spherical tops are rotatably connected inside the spherical concave seats. The mixing tank is fixedly installed on the inside of the frame; A flow stabilizing buffer tank is fixedly connected to the lower end of the mixing tank via a pipe. The interior of the flow stabilizing buffer tank is fixedly connected from top to bottom with multiple baffles and a flow equalizing plate. The pouring hood is located below the flow stabilizing buffer box. The flow stabilizing buffer box and the pouring hood are connected in sequence by a corrugated pipe and a connecting pipe. Pouring ports are opened at both ends of the pouring hood, and slurry flow channels are opened inside the pouring hood. The diversion block is fixedly connected to the inside of the slurry flow channel, dividing the inside of the slurry flow channel into two pouring channels, and the two pouring channels are respectively connected to the two pouring ports; The follow-up floating ring is fixedly connected to the center of the lower end of the casting cover; The balance frame is fixedly connected to the outer surface of the connecting pipe; The lifting frame is located outside the flow stabilizing buffer box. The lower end of the lifting frame is fixedly connected to two symmetrically distributed guide cylinders. The guide cylinders are slidably connected to guide rods. The lower end of the guide rods is fixedly connected to the upper end of the balance frame. Four laser displacement sensors are fixedly installed on the frame, with the detection ends of the four laser displacement sensors facing the four corners of the upper end of the mold box.

[0006] Preferably, roller conveyors are provided on both the left and right sides of the mold box to smoothly transport the mold box to the support platform and to send the mold box out after casting. Both roller conveyors are fixedly installed on the frame. The upper end of the support platform is provided with four evenly distributed drive grooves. Rubber wheels are rotatably connected inside the drive grooves to support the bottom of the mold box and assist the mold box in a smooth transition between the roller conveyor and the support platform.

[0007] Preferably, protective doors are hinged to both the left and right ends of the support platform, and positioning blocks are fixedly connected to the opposite ends of the two protective doors. Pull rods are rotatably connected to both the front and rear ends of the protective doors. Two sets of symmetrically distributed push-pull cylinders are fixedly installed at both the front and rear ends of the support platform. The output end of the push-pull cylinder is fixedly connected to the pull rod and is used to pull the pull rod to drive the protective door to open and close around the hinge point.

[0008] Preferably, two sets of symmetrically distributed docking blocks are fixedly connected to both the front and rear ends of the mold box, and docking holes are opened through the upper end of the docking blocks.

[0009] Preferably, two sets of symmetrically distributed clamping cylinders are fixedly installed at both the front and rear ends of the bearing platform. A lifting block is fixedly connected to the output end of the clamping cylinder, and a positioning pin is fixedly connected to the lower end of the lifting block. The positioning pin is inserted into the inside of the docking hole. The lifting block and the positioning pin are used to vertically clamp and limit the mold box.

[0010] Preferably, a supporting base frame is fixedly connected to the inner side of the frame, and a lifting hydraulic cylinder is fixedly installed at each of the four corners of the upper end of the supporting base frame. The output end of the lifting hydraulic cylinder is fixedly connected to the spherical top.

[0011] Preferably, two lifting cylinders are fixedly installed at the lower end of the mixing tank. The output end of the lifting cylinder is fixedly connected to the upper end of the lifting frame to drive the lifting frame to move vertically. Then, through the guide rod and the balance frame, the pouring hood is moved up and down as a whole to adjust the initial height of the pouring hood before the start of pouring. Two symmetrically distributed support rods are fixedly connected between the balance frame and the pouring hood.

[0012] Preferably, the multiple baffles are staggered from top to bottom, and the upper end of the flow equalization plate is provided with multiple uniformly distributed flow equalization holes to homogenize the cross-sectional velocity distribution of the slurry.

[0013] Preferably, the cross-section of the diversion pier is spindle-shaped, and the casting channel changes synchronously with the shape of the diversion pier, with the channel width being consistent at all points.

[0014] Preferably, the upper end of the rubber wheel is flush with the top of the drive groove. The two rubber wheels on the left and the two rubber wheels on the right are all fixedly connected to the interior of the drive shaft. The front ends of the two drive shafts pass through the front end of the support platform and are fixedly connected to the synchronous pulleys. The outer surfaces of the two synchronous pulleys are fitted with transmission belts. The rear end of the support platform is fixedly installed with a drive motor for driving the drive shaft on the left to rotate.

[0015] The beneficial effects of this invention compared to the prior art are: This solution proposes an aerated concrete block production and casting device. By setting up a flow stabilizing buffer box downstream of the mixing tank, and configuring staggered baffles and flow equalization plates with flow equalization holes inside, the baffles repeatedly change the flow direction of the slurry, weaken the falling impact and local high-speed flow, and the flow equalization plates homogenize the flow velocity distribution of the slurry cross section. This can significantly reduce the flow velocity fluctuation and local settlement during the slurry transportation process, making the material flow state entering the casting stage more stable and reducing the end-stage accumulation phenomenon from the source.

[0016] In this design, a spindle-shaped diversion pier is installed inside the casting cover to divide the slurry flow channel into two casting channels of equal width, with symmetrical discharge corresponding to the left and right casting ports. The spindle-shaped diversion structure can make the slurry diversion process transition smoothly, reduce turbulence and local stagnation, and the simultaneous discharge from both sides can avoid the problems of slurry deviation and local accumulation caused by single-sided injection, thus improving the uniformity of slurry distribution in the mold box.

[0017] In this design, the device achieves a flexible connection between the flow stabilizing buffer box and the casting hood through a corrugated pipe. Combined with the guiding support structure of the lifting frame, guide cylinder guide rod, and balance frame, it can drive the casting hood to rise and fall as a whole. The lower end of the casting hood is equipped with a follow-up floating ring, which can fit against the slurry surface during the casting process and raise the discharge port synchronously with the rise of the liquid surface, always maintaining a small drop discharge. This effectively avoids the slurry impacting the bottom of the mold box or the liquid surface at high speed, which would damage the bubble structure in the early stage of gas generation, improve the uniformity of the internal pores of the billet, and reduce defects such as local compaction and surface collapse.

[0018] In this solution, the device is equipped with four laser displacement sensors facing the four corners of the mold box, which can detect the height difference of the four corners of the mold box in real time. The bottom of the support platform is connected to the spherical concave seat, the spherical top head and the four corner lifting hydraulic cylinders to form a universal adjustable support structure. It can dynamically adjust the posture of the support platform according to the tilt state of the mold box, automatically complete the leveling of the mold box, offset the placement deviation of the mold box and its own tilt, avoid the slurry from accumulating on one side, and ensure that the slurry height in the mold box is uniform. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram showing the connection between the flow stabilizing buffer box and the pouring cover in this invention; Figure 3 for Figure 2 A magnified view of a portion of point A in the middle; Figure 4 This is a schematic diagram of the internal structure of the current stabilization buffer box in this invention; Figure 5 This is a schematic diagram of the internal structure of the casting cover in this invention; Figure 6 This is a schematic diagram of the connection of the support platform in this invention; Figure 7 for Figure 6 A magnified view of a portion of point B in the middle; Figure 8 This is a schematic diagram of the structure of the support platform in this invention; Figure 9 This is a schematic diagram of the structure of the mold box in this invention.

[0020] The numbers on the map are: 1. Frame; 2. Mold box; 3. Roller conveyor; 4. Support platform; 5. Mixing tank; 6. Flow stabilizing buffer box; 7. Baffle plate; 8. Flow equalization plate; 801. Flow equalization hole; 9. Casting hood; 10. Corrugated pipe; 1001. Connecting pipe; 11. Casting port; 12. Slurry channel; 13. Diverting pier; 14. Casting channel; 15. Follow-up floating ring; 16. Balance frame; 17. Lifting frame; 18. Guide cylinder; 19. Guide rod; 20. Lifting cylinder; 21. 1. Spherical concave seat; 22. Lifting hydraulic cylinder; 23. Spherical top head; 24. Bearing base frame; 25. Drive groove; 26. Rubber wheel; 27. Protective door; 28. Pull rod; 29. ​​Push-pull cylinder; 30. Positioning block; 31. Connecting block; 32. Connecting hole; 33. Pressing cylinder; 34. Lifting block; 35. Positioning pin; 36. Laser displacement sensor; 37. Drive shaft; 38. Synchronous pulley; 39. Transmission belt; 40. Drive motor; 41. Support rod. Detailed Implementation

[0021] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0022] Reference Figure 1 , Figure 6 and Figure 7 As shown, an aerated concrete block production and casting device includes: The frame 1 and the mold box 2 are provided. The inner side of the frame 1 is provided with a support platform 4 for supporting the mold box 2 for casting. The four corners of the lower end of the support platform 4 are all fixedly connected with spherical recesses 21. The spherical recesses 21 are rotatably connected to spherical tops 23. Specifically, the frame 1 is used to install and support the various casting components, the mold box 2 is used to receive the aerated concrete slurry, and the support platform 4 is used to support and level the mold box 2. By setting spherical recesses 21 at the four corners of the lower end of the support platform 4 and rotatably connecting the spherical top 23 to the inside of the spherical recesses 21, the support platform 4 can have a certain angle self-adaptive capability when it is lifted and adjusted by the four corners. This avoids the hard eccentric load between the support platform 4 and the lifting components due to uneven local force during the lifting process, thereby improving the stability of the support platform 4 during the leveling process.

[0023] Furthermore, a support base 24 is fixedly connected to the inner side of the frame 1, and a lifting hydraulic cylinder 22 is fixedly installed at each of the four corners of the upper end of the support base 24. The output end of the lifting hydraulic cylinder 22 is fixedly connected to the spherical head 23.

[0024] Specifically, the support frame 24 is used to install four lifting hydraulic cylinders 22, which correspond to the four corners of the support platform 4. When the lifting hydraulic cylinders 22 are working, they drive the spherical mandrels 23 to rise and fall. The spherical mandrels 23 support the support platform 4 through the spherical recesses 21. Since the spherical mandrels 23 can rotate within the spherical recesses 21, when any one of the lifting hydraulic cylinders 22 is raised or lowered individually, the spherical mandrels 23 can rotate slightly within the spherical recesses 21 with the tilt angle of the support platform 4. This ensures that the vertical lifting force of the lifting hydraulic cylinders 22 can always be transmitted to the support platform 4 relatively stably, avoiding uneven wear, jamming, or lateral pushing at the lifting points due to angle changes. This allows the four lifting points to be height compensated separately, and the output end of the lifting hydraulic cylinders 22 will not be subjected to significant lateral force due to the tilt of the support platform 4. This ensures that the support platform 4 maintains a stable support state during the independent adjustment of the four corners, making the force on the support platform 4 more uniform during the leveling process.

[0025] Furthermore, four laser displacement sensors 36 are fixedly installed on the frame 1, and the detection ends of the four laser displacement sensors 36 are respectively aligned with the four corners of the upper end of the mold box 2.

[0026] Specifically, four laser displacement sensors 36 are used to detect the height position of the four corners of the upper end of the mold box 2. After the mold box 2 is transported to the support platform 4, the four laser displacement sensors 36 acquire the height data of the four corners of the mold box 2 respectively, and control the corresponding lifting hydraulic cylinder 22 to lift and lower according to the height difference of the four corners, so that the upper end of the mold box 2 is in a relatively horizontal state. Through this structure, the mold box 2 can be automatically leveled before pouring, reducing the situation where the slurry accumulates on one side due to the tilt of the mold box 2, and improving the consistency of the pouring height of the aerated concrete blocks.

[0027] Reference Figure 1 and Figures 6-8 As shown, roller conveyors 3 are provided on both the left and right sides of the mold box 2 to smoothly transport the mold box 2 to the support platform 4 and to send the mold box 2 out after casting. Both roller conveyors 3 are fixedly installed on the frame 1. The upper end of the support platform 4 is provided with four evenly distributed drive grooves 25. Rubber wheels 26 are rotatably connected inside the drive grooves 25 to support the bottom of the mold box 2 and assist the mold box 2 in making a smooth transition between the roller conveyor 3 and the support platform 4.

[0028] Specifically, the roller conveyors 3 located on the left and right sides of the support platform 4 are used for feeding and discharging the mold box 2, respectively. When the mold box 2 is transported to the support platform 4 by one side roller conveyor 3, the rubber wheel 26 can contact the bottom of the mold box 2 and support it. Since the upper end of the rubber wheel 26 is flush with the top of the drive groove 25, the bottom of the mold box 2 will not jump or scrape significantly due to the height difference of the bearing surface when passing the junction between the roller conveyor 3 and the support platform 4. At the same time, the rubber wheel 26 can rotate and support the mold box 2 as it moves, reducing the impact or jamming of the mold box 2 when it transitions from the roller conveyor 3 to the support platform 4, so that the mold box 2 can enter the pouring position smoothly.

[0029] Furthermore, the upper end of the rubber wheel 26 is flush with the top of the drive groove 25. The two rubber wheels 26 on the left and the two rubber wheels 26 on the right are all fixedly connected to the drive shaft 37. The front end of each drive shaft 37 passes through the front end of the support platform 4 and is fixedly connected to the synchronous pulley 38. The outer surface of the two synchronous pulleys 38 is fitted with a transmission belt 39. The rear end of the support platform 4 is fixedly installed with a drive motor 40 for driving the left drive shaft 37 to rotate.

[0030] Specifically, when the drive motor 40 is working, it drives the left drive shaft 37 to rotate. The left drive shaft 37 drives the other drive shaft 37 to rotate synchronously through the corresponding synchronous pulley 38 and transmission belt 39. Through the linkage of the synchronous pulley 38 and transmission belt 39, the left and right sets of rubber wheels 26 can maintain a consistent rotation rhythm, avoiding the mold box 2 from being biased due to excessive force on one side when moving on the support platform 4. At the same time, the rubber wheels 26 form a flexible frictional contact with the bottom of the mold box 2, which can provide traction for the mold box 2 and reduce the impact of the rigid wheel body on the bottom of the mold box 2. Through the rotation of the rubber wheels 26, the mold box 2 can be moved and positioned on the support platform 4, reducing the frictional resistance between the bottom of the mold box 2 and the support platform 4. At the same time, the rubber wheels 26 have a certain elasticity, which can reduce the vibration and collision during the movement of the mold box 2.

[0031] Reference Figure 1 and Figures 6-9 As shown, protective doors 27 are hinged to both the left and right ends of the support platform 4. Positioning blocks 30 are fixedly connected to the opposite ends of the two protective doors 27. Pull rods 28 are rotatably connected to both the front and rear ends of the protective doors 27. Two sets of symmetrically distributed push-pull cylinders 29 are fixedly installed at both the front and rear ends of the support platform 4. The output end of the push-pull cylinder 29 is fixedly connected to the pull rod 28 and is used to pull the pull rod 28 to drive the protective doors 27 to open and close around the hinge point.

[0032] Specifically, when the mold box 2 needs to enter the support platform 4, the push-pull cylinder 29 on the corresponding side drives the protective door 27 to open through the pull rod 28, so that the mold box 2 can smoothly enter the support platform 4. When the mold box 2 moves and abuts against the positioning block 30 on the inner side of the protective door 27 on the other side, the mold box 2 moves to the pouring position. At this time, the push-pull cylinder 29 drives the protective door 27 to close through the pull rod 28, so that the positioning block 30 on its inner side abuts against the other end of the mold box 2. Through the abutment of the two positioning blocks 30 against the left and right ends of the mold box 2, the left and right ends of the mold box 2 can be limited, thereby preventing the mold box 2 from shifting on the support platform 4 during the pouring process. After the pouring is completed, the protective door 27 on the other side opens, and the mold box 2 can be sent out with the cooperation of the rubber wheel 26 and the roller conveyor 3.

[0033] It should be noted that the front and rear spacing of the support platform 4 is adapted to the mold box 2.

[0034] Furthermore, two sets of symmetrically distributed docking blocks 31 are fixedly connected to both the front and rear ends of the mold box 2. The upper end of the docking block 31 is provided with a docking hole 32. Two sets of symmetrically distributed pressing cylinders 33 are fixedly installed at both the front and rear ends of the support platform 4. The output end of the pressing cylinder 33 is fixedly connected to a lifting block 34. The lower end of the lifting block 34 is fixedly connected to a positioning pin 35. The positioning pin 35 is inserted into the interior of the docking hole 32. The lifting block 34 and the positioning pin 35 are used to vertically press and limit the mold box 2.

[0035] Specifically, after both protective doors 27 are closed, the clamping cylinder 33 drives the lifting block 34 to descend, causing the positioning pin 35 to insert into the corresponding docking hole 32. After the positioning pin 35 and the docking hole 32 are engaged, the horizontal movement of the mold box 2 can be restricted. At the same time, the lifting block 34 presses down the docking block 31 to vertically clamp the mold box 2. The positioning pin 35 forms an insertion limit after being inserted into the docking hole 32, which can restrict the slight sliding of the mold box 2 relative to the support platform 4 in the front-back or left-right directions. After the lifting block 34 continues to press down the docking block 31, the mold box 2 can be pressed tightly onto the support platform 4, so that the mold box 2 and the support platform 4 are raised, lowered and tilted synchronously during the leveling process. This prevents the mold box 2 from sliding relative to the support platform 4 when the four corners of the support platform 4 are adjusted, so that the mold box 2 remains stable during the leveling and pouring process, and avoids the positional displacement of the mold box 2 due to slurry impact, equipment vibration or the raising and lowering adjustment of the support platform 4.

[0036] Reference Figures 1-5 As shown, a mixing tank 5 is fixedly installed on the inner side of the frame 1. The mixing tank 5 is used to store and agitate the aerated concrete slurry. The lower end of the mixing tank 5 is fixedly connected to a flow stabilizing buffer box 6 through a pipe. The inside of the flow stabilizing buffer box 6 is fixedly connected from top to bottom to a plurality of baffles 7 and a flow equalizing plate 8.

[0037] Specifically, after the aerated concrete slurry enters the flow stabilization buffer tank 6 from the mixing tank 5, the slurry passes through multiple baffles 7 and flow equalization plates 8 in sequence. The baffles 7 can change the flow direction of the slurry and weaken the impact and local high-speed flow generated when the slurry falls from the mixing tank 5. The flow equalization plates 8 are used to further evenly distribute the slurry, so that the flow rate of the slurry entering the subsequent pouring hood 9 is more stable.

[0038] Furthermore, multiple baffles 7 are staggered from top to bottom, and multiple uniformly distributed flow equalization holes 801 are opened through the upper end of the flow equalization plate 8 to homogenize the cross-sectional velocity distribution of the slurry.

[0039] Specifically, when the slurry flows in the flow stabilizing buffer tank 6, the staggered baffles 7 can cause the slurry to form multiple turning flows, reducing the direct impact of the slurry on the structure below and reducing the fluctuation of the slurry flow velocity. The multiple flow equalization holes 801 on the flow equalization plate 8 can disperse the slurry into multiple smaller flow streams, so that when the slurry passes through the flow equalization plate 8, it changes from local concentrated flow to multiple uniformly distributed vertical flows, thereby weakening the velocity difference and pressure difference on the slurry cross section, reducing the situation where the flow rate on one side is larger and the flow rate on the other side is smaller after entering the pouring cover 9. This makes the slurry form a more uniform cross-sectional flow velocity distribution after passing through the flow equalization plate 8, thereby improving the uniformity of subsequent pouring.

[0040] It is understandable that the number of baffles 7, the spacing between adjacent baffles 7, and the coverage area of ​​baffles 7 in the flow stabilization buffer box 6 can all be set according to the slurry fluidity, the internal height of the flow stabilization buffer box 6, and the actual pouring flow rate, in order to meet the flow stabilization requirements during the production of aerated concrete blocks of different specifications. For example, in one embodiment, the baffles 7 are set in three layers, with the three layers of baffles 7 spaced apart along the height direction of the flow stabilization buffer box 6, and the projections of adjacent layers of baffles 7 in the vertical direction are staggered, with the staggered area being 50% of the projected area of ​​the baffles 7. This allows the slurry to form a continuous zigzag flow path in the flow stabilization buffer box 6, prolonging the slurry buffer time and further weakening the impact of slurry falling and local high-speed flow.

[0041] Furthermore, a pouring hood 9 is provided below the flow stabilizing buffer box 6. The flow stabilizing buffer box 6 and the pouring hood 9 are connected in sequence by a corrugated pipe 10 and a connecting pipe 1001. Pouring ports 11 are provided at both the left and right ends of the pouring hood 9, and slurry flow channels 12 are provided inside the pouring hood 9.

[0042] Specifically, the corrugated pipe 10 is used to form a flexible connection structure between the flow stabilizing buffer box 6 and the connecting pipe 1001. When the pouring hood 9 moves up and down, the corrugated pipe 10 can expand and contract accordingly to ensure that the slurry conveying channel remains connected. The connecting pipe 1001 is used to guide the slurry in the flow stabilizing buffer box 6 into the pouring hood 9. After the slurry enters the slurry flow channel 12, it can flow to the pouring ports 11 at the left and right ends respectively, and be discharged into the mold box 2 from the pouring ports 11. Since the pouring hood 9 needs to be adjusted up and down with the lifting cylinder 20, while the flow stabilizing buffer box 6 is relatively fixed, the corrugated pipe 10 can compensate for the height change between the flow stabilizing buffer box 6 and the pouring hood 9, avoid the rigid pipeline from being pulled or broken during the lifting process, and also reduce the transmission effect of equipment vibration on the pouring hood 9.

[0043] Furthermore, a diversion block 13 is fixedly connected inside the slurry flow channel 12, which divides the inside of the slurry flow channel 12 into two casting channels 14, and the two casting channels 14 are respectively connected to two casting ports 11.

[0044] Specifically, the diversion block 13 is used to divert the slurry entering the slurry channel 12, so that the slurry can enter the two casting channels 14 respectively and be discharged through the casting ports 11 at the left and right ends. By setting two casting channels 14 and two casting ports 11, the slurry can be discharged from the left and right sides of the casting cover 9 at the same time, so that the slurry forms a relatively symmetrical feeding state in the mold box 2. This avoids the slurry from accumulating locally before flowing to the surrounding areas when the slurry is discharged from a single casting port 11. This reduces segregation, sedimentation or local bubble destruction caused by excessively long slurry flow paths, and reduces the problem of slurry deviation or local accumulation in the mold box 2 caused by unilateral discharge.

[0045] Furthermore, the cross-section of the diversion pier 13 is spindle-shaped, and the casting channel 14 changes synchronously with the shape of the diversion pier 13, with the channel width being consistent at each point of the casting channel 14.

[0046] Specifically, the spindle-shaped diversion pier 13 allows the slurry to transition smoothly during the diversion process, reducing turbulence or local stagnation caused by the slurry impacting the diversion pier 13. At the same time, the consistent width of the flow channel 14 at each point allows the slurry to maintain a relatively uniform flow cross section within the two flow channels 14. Since the shape of the two sides of the diversion pier 13 is continuously transitioned, the slurry will not be suddenly obstructed by sharp obstacles when passing around the diversion pier 13, and can be smoothly diverted along both sides of the diversion pier 13. Meanwhile, the equal width of the flow channels 14 can avoid sudden narrowing of the flow channel, which would cause an increase in flow velocity, or sudden widening of the flow channel, which would cause slurry stagnation. This reduces the sudden changes in flow velocity caused by changes in the width of the flow channel, thereby improving the discharge stability of the two pouring ports 11.

[0047] Furthermore, a follower floating ring 15 is fixedly connected at the lower center of the casting cover 9.

[0048] Specifically, the follower floating ring 15 contacts the gradually rising slurry surface inside the mold box 2. When the slurry surface inside the mold box 2 rises during the pouring process, the follower floating ring 15 can move upward with the slurry surface, so that the pouring cover 9 and the slurry surface maintain a small relative drop. Since the follower floating ring 15 is set at the lower center of the pouring cover 9, it can serve as a contact reference between the pouring cover 9 and the slurry surface. When the slurry surface rises and lifts the follower floating ring 15, it can drive the pouring cover 9 to move upward synchronously, avoiding the pouring port 11 being too high from the slurry surface for a long time, thus reducing the impact of the slurry on the slurry surface inside the mold box 2 after the slurry is discharged from the pouring port 11, and reducing the possibility of the air bubbles inside the aerated concrete slurry being destroyed.

[0049] Furthermore, a balance frame 16 is fixedly connected to the outer surface of the connecting pipe 1001, and a lifting frame 17 is provided on the outside of the flow stabilizing buffer box 6. Two symmetrically distributed guide cylinders 18 are fixedly connected to the lower end of the lifting frame 17. A guide rod 19 is slidably connected inside the guide cylinder 18. The lower end of the guide rod 19 is fixedly connected to the upper end of the balance frame 16. Two symmetrically distributed support rods 41 are fixedly connected between the balance frame 16 and the pouring cover 9.

[0050] Specifically, the balance frame 16 provides overall support for the connecting pipe 1001, the pouring hood 9, and the support rod 41. Two guide cylinders 18 and two guide rods 19 cooperate to guide the lifting and lowering process of the pouring hood 9, ensuring its stability during vertical movement. Two support rods 41 are symmetrically connected between the balance frame 16 and the pouring hood 9, allowing the balance frame 16 to provide simultaneous support to the pouring hood 9 from both sides, enhancing the connection stability between the pouring hood 9 and the connecting pipe 1001. The guide cylinders 18 and 19... The guide rod 19 is used to limit the direction of movement of the pouring hood 9 when it is raised and lowered, and the support rod 41 is used to transfer the supporting force of the balance frame 16 to both sides of the pouring hood 9. This makes the pouring hood 9 no longer rely solely on the connecting pipe 1001 for single-point support, but instead forms a three-point stable connection structure supported by the connecting pipe 1001 and the two support rods 41. This reduces the swaying, shaking or tilting of the pouring hood 9 during the raising and lowering or the impact of the slurry flow, thereby ensuring that the discharge height and discharge state of the two pouring ports 11 on the left and right are consistent.

[0051] Furthermore, two lifting cylinders 20 are fixedly installed at the lower end of the mixing tank 5. The output end of the lifting cylinder 20 is fixedly connected to the upper end of the lifting frame 17, which is used to drive the lifting frame 17 to move vertically. Then, through the guide rod 19 and the balance frame 16, the pouring hood 9 is moved up and down as a whole, adjusting the initial height of the pouring hood 9 before the start of pouring.

[0052] Specifically, before the pouring begins, the lifting cylinder 20 drives the lifting frame 17 to descend, bringing the pouring cover 9 close to the bottom of the mold box 2.

[0053] It should be noted that the roller conveyor 3, drive motor 40, push-pull cylinder 29, clamping cylinder 33, lifting hydraulic cylinder 22, lifting cylinder 20 and four laser displacement sensors 36 are all electrically connected to an external PLC controller. A feeding valve is installed on the connecting pipe between the mixing tank 5 and the flow stabilizing buffer box 6. The feeding valve is electrically connected to an external PLC controller and is used to control the feeding on / off.

[0054] Specifically, the roller conveyor 3 and drive motor 40 are used to move the mold box 2 towards the support platform 4 under the control of the PLC controller. Four laser displacement sensors 36 are used to detect the four corners of the upper end of the mold box 2. When the mold box 2 has not entered the pouring position, the detection values ​​of the four laser displacement sensors 36 are not within the preset detection range, and the PLC controller controls the roller conveyor 3 and drive motor 40 to continue running. When the mold box 2 moves to the pouring position, all four laser displacement sensors 36 can detect the height position of the corresponding corners of the upper end of the mold box 2, and the detection values ​​are all within the preset detection range and remain stable. When this is the case, the PLC controller determines that the mold box 2 has reached the pouring position and controls the roller conveyor 3 and drive motor 40 to stop running. After the PLC controller determines that the mold box 2 is in place, it first controls the push-pull cylinder 29 to move, causing the protective door 27 to... The mold box 2 is closed and the left and right ends are limited by the positioning block 30. Then, the clamping cylinder 33 is controlled to move, so that the positioning pin 35 is inserted into the docking hole 32 and the mold box 2 is clamped by the lifting block 34. Then, the PLC controller calculates the height difference between the four corners of the mold box 2 based on the height data of the four corners of the upper end of the mold box 2 detected by the four laser displacement sensors 36, and controls the lifting hydraulic cylinder 22 at the corresponding position to adjust the lifting. The spherical top head 23 drives the bearing platform 4 to adjust the angle through the spherical concave seat 21 until the height difference detected by the four laser displacement sensors 36 is within the preset allowable range. Thus, the mold box 2 is completed in place detection, clamping and positioning and automatic leveling. After the mold box 2 is leveled, the PLC controller controls the lifting cylinder 20 to drive the pouring cover 9 to descend and controls the feeding valve of the mixing tank 5 to open for material supply.

[0055] It should be noted that during use, the allowable deviation threshold for the height of the four corners of the mold box 2 is set in the PLC controller. After the push-pull cylinder 29 and the clamping cylinder 33 have completed all their actions and ensured that the positioning block 30 and the positioning pin 35 are all in place, the PLC receives the arrival signal. The laser displacement sensor 36 collects the values ​​of the four corners in real time. When any corner exceeds the threshold, the corresponding lifting hydraulic cylinder 22 is lifted and lowered separately to compensate. The detection is repeated until the height difference of the four corners reaches the standard. Only then is the feed valve of the mixing tank 5 opened. To determine whether the positioning block 30 and the positioning pin 35 are in place, a machine vision camera or other existing technologies can be used for detection. The entire pouring process is locked by the push-pull cylinder 29, and the protective door 27 cannot be opened. The guide rod 19 is equipped with a matching displacement sensor. The upward displacement of the follow-up floating ring 15 is fed back in real time through the matching displacement sensor of the guide rod 19. When the displacement sensor detects that the guide rod 19 has retracted to the specified length, it determines that the liquid level has reached the set height. At this time, the feed valve is automatically closed, and the lifting cylinder 20 drives the pouring cover 9 to be lifted as a whole. If the sensor readings are abnormal or the hydraulic cylinder is overloaded, immediately cut off the slurry supply and trigger an alarm to stop the machine.

[0056] Working principle: During use, the roller conveyor 3 located on one side of the support platform 4 transports the empty mold box 2 to the support platform 4. The drive motor 40 drives the left drive shaft 37 to rotate. The left drive shaft 37 drives the other drive shaft 37 to rotate synchronously through the synchronous pulley 38 and the transmission belt 39, so that multiple rubber wheels 26 rotate synchronously, thereby assisting the mold box 2 to move smoothly to the pouring position on the support platform 4. When the mold box 2 moves to abut against the positioning block 30 inside the protective door 27 on one side, the push-pull cylinder 29 drives the other protective door 27 to close through the pull rod 28, so that the two positioning blocks 30 abut against the left and right ends of the mold box 2 respectively, thereby limiting the left and right directions of the mold box 2. After the mold box 2 is positioned, the clamping cylinder 33 drives the lifting block 34 to descend, so that the positioning pin 35 is inserted into the corresponding docking hole 32. The positioning pin 35 and the docking hole 32 restrict the horizontal movement of the mold box 2. At the same time, the lifting block 34 presses down the docking block 31 to vertically clamp the mold box 2, so that the mold box 2 is stably fixed on the support platform 4. Subsequently, the four laser displacement sensors 36 detect the height position of the four corners of the upper end of the mold box 2 respectively, and control the corresponding lifting hydraulic cylinder 22 to act according to the detected height difference. The lifting hydraulic cylinder 22 drives the spherical top 23 to rise and fall. The spherical top 23 lifts and adjusts the support platform 4 through the spherical concave seat 21, so that the support platform 4 drives the mold box 2 to complete the leveling of the four corners. After the mold box 2 is leveled, the lifting cylinder 20 drives the lifting frame 17 to descend. The lifting frame 17 drives the pouring cover 9 to move downward as a whole through the guide cylinder 18, guide rod 19, balance frame 16 and support rod 41, so that the pouring cover 9 is close to the pouring position inside the mold box 2, and the follower floating ring 15 is close to or in contact with the slurry liquid surface inside the mold box 2. During the pouring process, the guide cylinder 18 and guide rod 19 cooperate to guide the lifting and lowering action of the pouring cover 9. The two support rods 41 provide synchronous support on both sides of the pouring cover 9, thereby reducing the swaying or shaking of the pouring cover 9 during the lifting and discharge process. Subsequently, the aerated concrete slurry in the mixing tank 5 enters the flow stabilization buffer tank 6 through the pipeline. After entering the flow stabilization buffer tank 6, the slurry passes through multiple staggered baffles 7 and flow equalization plates 8 in sequence. The baffles 7 perform multiple baffles and buffers on the slurry to reduce the impact of the slurry falling and the local high-speed flow. The multiple flow equalization holes 801 on the flow equalization plate 8 disperse and homogenize the slurry, so that the slurry enters the corrugated pipe 10 and the connecting pipe 1001 at a relatively stable flow rate, and then enters the slurry flow channel 12 inside the casting cover 9 through the connecting pipe 1001. After the slurry enters the slurry flow channel 12, it enters the two pouring channels 14 under the diversion action of the diversion block 13, and is discharged into the mold box 2 through the pouring ports 11 at both ends of the pouring cover 9. Since the cross-section of the diversion block 13 is spindle-shaped and the flow channel width at each point of the pouring channel 14 is consistent, the slurry can smoothly transition during the diversion process, reducing turbulence and local stagnation, making the discharge state of the two pouring ports 11 more stable, thereby improving the uniformity of slurry distribution in the mold box 2. As the slurry level inside the mold box 2 gradually rises, the follower float 15 comes into contact with the slurry level and is lifted by the slurry level. The follower float 15 drives the pouring cover 9 to move upward synchronously. The pouring cover 9 drives the balance frame 16, connecting pipe 1001 and guide rod 19 to move upward synchronously through the support rod 41. The guide rod 19 slides in the guide cylinder 18, so that the pouring cover 9 can passively follow the lifting frame 17 to rise. The lifting cylinder 20 maintains the initial adjustment position during this process, so that the pouring port 11 and the slurry level maintain a small relative drop, reducing the impact of the slurry on the slurry level when the slurry is discharged from the pouring port 11, and reducing the possibility of the air bubbles inside the aerated concrete slurry being destroyed. After the pouring is completed, the lifting cylinder 20 drives the pouring cover 9 to rise and reset, the clamping cylinder 33 drives the lifting block 34 to rise, so that the positioning pin 35 disengages from the docking hole 32, the push-pull cylinder 29 drives the discharge side protective door 27 to open through the pull rod 28, the drive motor 40 drives the rubber wheel 26 to rotate again, and cooperates with the roller conveyor 3 on the discharge side to send the poured mold box 2 out of the support platform 4. Then another empty mold box 2 enters the support platform 4 for the next pouring operation.

[0057] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. An apparatus for producing and casting aerated concrete blocks, characterized in that, include: The frame (1) and the mold box (2) are provided with a support platform (4) on the inner side of the frame (1) for supporting the mold box (2) for casting. Spherical recesses (21) are fixedly connected at the four corners of the lower end of the support platform (4). A spherical top (23) is rotatably connected inside the spherical recesses (21). The mixing tank (5) is fixedly installed on the inside of the frame (1); The flow stabilizing buffer tank (6) is fixedly connected to the lower end of the mixing tank (5) through a pipe. The interior of the flow stabilizing buffer tank (6) is fixedly connected with multiple baffles (7) and a flow equalization plate (8) from top to bottom. The pouring cover (9) is located below the flow stabilizing buffer box (6). The flow stabilizing buffer box (6) and the pouring cover (9) are connected in sequence through a corrugated pipe (10) and a connecting pipe (1001). Pouring ports (11) are opened at both the left and right ends of the pouring cover (9). Slurry flow channels (12) are opened inside the pouring cover (9). Diverting block (13) is fixedly connected to the inside of slurry channel (12). The diverting block (13) divides the inside of slurry channel (12) into two pouring channels (14). The two pouring channels (14) are respectively connected to the two pouring ports (11). The follower floating ring (15) is fixedly connected to the center of the lower end of the casting cover (9); The balance frame (16) is fixedly connected to the outer surface of the connecting pipe (1001); The lifting frame (17) is located on the outside of the flow stabilizing buffer box (6). The lower end of the lifting frame (17) is fixedly connected to two symmetrically distributed guide cylinders (18). The guide cylinders (18) are slidably connected to guide rods (19). The lower end of the guide rods (19) is fixedly connected to the upper end of the balance frame (16). Four laser displacement sensors (36) are fixedly installed on the frame (1), and the detection ends of the four laser displacement sensors (36) are respectively aligned with the four corners of the upper end of the mold box (2).

2. The aerated concrete block production and casting device according to claim 1, characterized in that: Roller conveyors (3) are provided on both the left and right sides of the mold box (2) to smoothly transport the mold box (2) to the support platform (4) and to send the mold box (2) out after casting. Both roller conveyors (3) are fixedly installed on the frame (1). The upper end of the support platform (4) is provided with four evenly distributed drive grooves (25). Rubber wheels (26) are rotatably connected inside the drive grooves (25) to support the bottom of the mold box (2) and assist the mold box (2) to make a smooth transition between the roller conveyor (3) and the support platform (4).

3. The aerated concrete block production and casting device according to claim 1, characterized in that: The left and right ends of the support platform (4) are hinged with protective doors (27). The opposite ends of the two protective doors (27) are fixedly connected with positioning blocks (30). The front and rear ends of the protective doors (27) are rotatably connected with pull rods (28). The front and rear ends of the support platform (4) are fixedly installed with two sets of symmetrically distributed push-pull cylinders (29). The output end of the push-pull cylinder (29) is fixedly connected to the pull rod (28) and is used to pull the pull rod (28) to drive the protective door (27) to open and close around the hinge point.

4. The aerated concrete block production and casting device according to claim 1, characterized in that: The front and rear ends of the mold box (2) are fixedly connected with two sets of symmetrically distributed docking blocks (31), and the upper end of the docking block (31) is provided with a docking hole (32).

5. The aerated concrete block production and casting device according to claim 1, characterized in that: Two sets of symmetrically distributed clamping cylinders (33) are fixedly installed at both the front and rear ends of the bearing platform (4). A lifting block (34) is fixedly connected to the output end of the clamping cylinder (33). A positioning pin (35) is fixedly connected to the lower end of the lifting block (34). The positioning pin (35) is inserted into the inside of the docking hole (32). The lifting block (34) and the positioning pin (35) are used to vertically clamp and limit the mold box (2).

6. The aerated concrete block production and casting device according to claim 1, characterized in that: The inner side of the frame (1) is fixedly connected to a support base (24), and a lifting hydraulic cylinder (22) is fixedly installed at each of the four corners of the upper end of the support base (24). The output end of the lifting hydraulic cylinder (22) is fixedly connected to the spherical head (23).

7. The aerated concrete block production and casting device according to claim 1, characterized in that: Two lifting cylinders (20) are fixedly installed at the lower end of the mixing tank (5). The output end of the lifting cylinder (20) is fixedly connected to the upper end of the lifting frame (17) to drive the lifting frame (17) to rise and fall vertically. Then, through the guide rod (19) and the balance frame (16), the pouring hood (9) is moved up and down as a whole to adjust the initial height of the pouring hood (9) before the start of pouring. Two symmetrically distributed support rods (41) are fixedly connected between the balance frame (16) and the pouring hood (9).

8. The aerated concrete block production and casting device according to claim 1, characterized in that: Multiple baffles (7) are staggered from top to bottom, and multiple uniformly distributed flow equalization holes (801) are opened through the upper end of the flow equalization plate (8) to equalize the cross-sectional flow velocity distribution of the slurry.

9. The aerated concrete block production and casting device according to claim 1, characterized in that: The cross section of the diversion pier (13) is spindle-shaped, and the casting channel (14) changes synchronously with the shape of the diversion pier (13). The width of the casting channel (14) is consistent at each point.

10. The aerated concrete block production and casting device according to claim 2, characterized in that: The upper end of the rubber wheel (26) is flush with the top of the drive groove (25). The two rubber wheels (26) on the left and the two rubber wheels (26) on the right are all fixedly connected to drive shafts (37). The front ends of the two drive shafts (37) pass through the front end of the support platform (4) and are fixedly connected to synchronous pulleys (38). The outer surfaces of the two synchronous pulleys (38) are fitted with transmission belts (39). The rear end of the support platform (4) is fixedly installed with a drive motor (40) for driving the drive shaft (37) on the left to rotate.

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