A pouring forming equipment for building fiber cement pressure plate production

Abstract

The application relates to a pouring forming equipment for building fiber cement pressure plate production, and belongs to the technical field of pouring forming tools; the pouring forming equipment comprises a rack, a conveying belt is arranged on the rack, four stand columns are fixedly arranged on the upper side of one end of the rack, a mold is fixedly arranged between the four stand columns, a bottom mold capable of being lifted is arranged below the mold through a mold closing assembly, and the bottom mold is abuttingly arranged on the upper end of the conveying belt; a pouring assembly is arranged between the upper ends of the four stand columns, the pouring assembly comprises a pouring head, and the pouring head is driven to move horizontally through the pouring assembly; a group of flattening assemblies is arranged on the front and back sides of the mold respectively, the flattening assembly comprises a pressing plate, and the pressing plate is driven to move above the mold and then downwards to the inside of the mold through the flattening assembly; the problems that the mold sealing performance of the current building fiber cement pressure plate pouring forming equipment is poor, the pouring uniformity is insufficient, and the mold closing pressure is insufficient are solved.

Description

Technical Field

[0001] This invention belongs to the technical field of casting and molding tools, specifically relating to a casting and molding equipment for the production of building fiber cement pressure boards. Background Technology

[0002] Fiber cement pressure boards are widely used in various building applications, such as interior and exterior walls, ceilings, and floors, due to their excellent properties such as high strength, durability, fire resistance, and moisture resistance. The quality of their molding directly affects the stability and service life of the building structure. Casting is the core process in the production of this type of pressure board, and the precision, stability, and efficiency of the equipment play a decisive role in the quality of the final product.

[0003] Existing fiber cement pressure board casting equipment has several shortcomings. Firstly, its mold sealing performance is poor, and gaps easily form at the joint between the mold and the bottom mold, leading to cement leakage during casting. This wastes materials and compromises the integrity of the pressure board. Secondly, casting uniformity is insufficient. The traditional casting head's movement trajectory adjustment precision is low or limited, resulting in uneven distribution of cement within the molding cavity and localized density differences, which in turn affects the structural strength and service life of the pressure board. Thirdly, the mold closing pressure control lacks precise feedback and adjustment mechanisms. Excessive pressure can damage the mold, while insufficient pressure leads to incomplete molding. Furthermore, pressure deviations are prone to occur during vibration defoaming, making it difficult to ensure consistency in mass production. Therefore, improvements are needed to address these issues. Summary of the Invention

[0004] This invention overcomes the shortcomings of the prior art and proposes a casting and molding equipment for the production of building fiber cement pressure boards; it solves the problems of poor mold sealing performance, insufficient casting uniformity, and insufficient mold closing pressure adjustment in current building fiber cement pressure board casting and molding equipment.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution.

[0006] A casting and molding equipment for producing building fiber cement pressure boards includes a frame, a conveyor belt mounted on the frame, four columns fixedly mounted on the upper side of one end of the frame, a mold fixedly mounted between the four columns, and a liftable bottom mold mounted below the mold via a mold-closing assembly. The bottom mold abuts against the upper end of the conveyor belt. A casting assembly is mounted between the upper ends of the four columns, the casting assembly including a casting head, which is driven to move horizontally by the casting assembly. A set of flattening assemblies is mounted on the front and rear sides of the mold, the flattening assemblies including pressure plates, which are driven to move the pressure plates above the mold and then downward into the mold.

[0007] Furthermore, a drive roller is rotatably mounted at each end of the frame, and multiple conveyor belts are sleeved between the two drive rollers; a sprocket is fixedly mounted at each end of each drive roller, and the sprockets on the same side of the two drive rollers are connected by a chain belt; a servo motor is fixedly mounted at one end of the frame, and the output shaft of the servo motor is fixedly connected to the end of one of the drive rollers.

[0008] Furthermore, the mold is a square cylindrical structure with openings at both the top and bottom. Four columns are respectively set on the outer sides of the four corners of the mold, and the four corners of the mold are fixedly connected to the four columns by a set of clamps.

[0009] Furthermore, the casting assembly also includes a connecting block, a first lead screw, and a first stepper motor; a connecting block is fixedly installed at the upper end of each column, and a first lead screw is rotatably installed between the two connecting blocks on the left and between the two connecting blocks on the right. A first stepper motor is fixedly installed on each of the two connecting blocks on the rear side, and the output shafts of the two first stepper motors are fixedly connected to the rear ends of the two first lead screws respectively.

[0010] Furthermore, the casting assembly also includes a moving block, a second stepper motor, a second lead screw, a guide rod, and a support block; a moving block is screwed to the outside of each first lead screw, a rotatable second lead screw and a fixed guide rod are arranged between two moving blocks, a second stepper motor is fixedly mounted on one of the moving blocks, and the output shaft of the second stepper motor is fixedly connected to the end of the second lead screw; a support block is screwed to the outside of the second lead screw, and the support block is slidably sleeved on the outside of the guide rod; the casting head is fixedly mounted at the front end of the support block.

[0011] Furthermore, a retaining groove is provided inside the lower opening of the mold, and an air bladder is fixedly provided on the inner wall of the retaining groove. An air pump is fixedly provided on the outer side of the mold, and the air pump is connected to the inside of the air bladder. A retaining ring is fixedly provided on the upper surface of the bottom mold, and a rubber plate is fixedly provided on the lower end of the outer side of the retaining ring.

[0012] Furthermore, the flattening assembly also includes a support frame, a support plate, and a first electric push rod; a support frame is fixedly installed on the left and right sides of the front end of the mold, and a support plate extending horizontally is fixedly installed between the upper ends of the two support frames on the front side. A first electric push rod is fixedly installed in the middle of the support plate, and the telescopic rod of the first electric push rod passes vertically downward through the support plate.

[0013] Furthermore, the flattening assembly also includes a guide plate and a connecting plate; a guide plate is fixedly installed at the end of the telescopic rod of the first electric actuator, a row of T-shaped blocks is installed at the lower end of the guide plate, a connecting plate is installed below the guide plate, a row of T-shaped slots is equidistantly installed on the connecting plate, and the row of T-shaped blocks at the lower end of the guide plate are slidably installed inside the row of T-shaped slots at the upper end of the connecting plate; the pressure plate is located below the connecting plate, and the left and right ends of the upper surface of the pressure plate are fixedly connected to the left and right ends of the lower surface of the connecting plate through a connecting frame.

[0014] Furthermore, the flattening assembly also includes a third stepper motor and a drive gear; a third stepper motor is fixedly installed on the upper front end of each of the two support frames, and a drive gear is fixedly installed on the output shaft of each of the two third stepper motors, with the two drive gears located on the left and right sides of the connecting plate respectively; a row of toothed grooves is provided at both ends of the pressure plate.

[0015] Furthermore, the mold assembly includes a support frame, a vibration motor, a pressure scale, and a second electric push rod; two support frames are fixedly installed at the lower end of the bottom mold, and the conveyor belt is located between the two support frames; a vibration motor is fixedly installed at both ends of each support frame; the same pressure scale is fixedly installed at the lower end of the two support frames, and a second electric push rod is fixedly installed at each of the four corners of the lower end face of the pressure scale.

[0016] The beneficial effects of this invention compared to the prior art are as follows:

[0017] This invention, through the cooperation of a second electric actuator, support frame, pressure scale, airbag, air pump, and rubber plate, facilitates enhanced mold sealing between the mold and bottom mold, preventing leakage of casting materials. Simultaneously, it monitors and adjusts the mold closing pressure in real time, avoiding excessive pressure that could damage the mold or insufficient pressure that would affect the molding effect. The cooperation of a first stepper motor, a second stepper motor, a first lead screw, a second lead screw, a guide rod, a moving block, and the pouring head facilitates the driving of the pouring head to move in both longitudinal and transverse directions, ensuring uniform spraying of cement materials into the molding cavity, improving the consistency of cement material distribution, and guaranteeing uniform density of the pressure plate molding. Through vibration... The combination of the motor, support frame, pressure scale, and second electric push rod facilitates the removal of residual air bubbles in the cement raw materials after pouring, while simultaneously monitoring and maintaining stable mold closing pressure in real time, improving the density and structural strength of the pressure plate, and reducing internal defects. Through the cooperation of the first electric push rod, third stepper motor, drive gear, connecting plate, pressure plate, and guide plate, the lifting height and movement range of the pressure plate can be flexibly adjusted to achieve uniform flattening of the cement raw materials throughout the molding cavity, eliminating surface unevenness, ensuring the surface flatness of the building fiber cement pressure plate, and adapting to the molding requirements of pressure plates of different specifications. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the connection between the frame and the conveyor belt of the present invention;

[0021] Figure 3 This is a schematic diagram showing the connection between the casting component, the flattening component, and the mold closing component of the present invention;

[0022] Figure 4 This is a three-dimensional structural diagram of the casting component of the present invention;

[0023] Figure 5 This is a three-dimensional structural diagram of the flattening component of the present invention;

[0024] Figure 6 This is a three-dimensional structural diagram of the mold clamping assembly of the present invention;

[0025] Figure 7 This is a schematic diagram of the connection between the connecting plate and the drive gear of the present invention;

[0026] Figure 8 This is a schematic diagram showing the connection between the mold and the bottom mold of the present invention.

[0027] Among them, 1 is the frame, 2 is the column, 3 is the mold, 4 is the bottom mold, 5 is the transmission roller, 6 is the conveyor belt, 7 is the chain belt, 8 is the servo motor, 9 is the connecting block, 10 is the first lead screw, 11 is the first stepper motor, 12 is the moving block, 13 is the second stepper motor, 14 is the second lead screw, 15 is the guide rod, 16 is the support block, 17 is the pouring head, 18 is the airbag, 19 is the air pump, 20 is the rubber plate, 21 is the support frame, 22 is the support plate, 23 is the first electric push rod, 24 is the guide plate, 25 is the connecting plate, 26 is the pressure plate, 27 is the third stepper motor, 28 is the drive gear, 29 is the support frame, 30 is the vibration motor, 31 is the pressure scale, and 32 is the second electric push rod. Detailed Implementation

[0028] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this invention clearer, the invention will be further described in detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solutions of this invention are described in detail below with reference to the embodiments and accompanying drawings, but the scope of protection is not limited thereto.

[0029] like Figure 1As shown in Figure 8, this invention provides a casting and molding equipment for producing building fiber cement pressure boards, including a frame 1, a conveyor belt 6 mounted on the frame 1, four columns 2 fixedly mounted on the upper side of one end of the frame 1, a mold 3 fixedly mounted between the four columns 2, and a liftable bottom mold 4 mounted below the mold 3 via a mold closing assembly, the bottom mold 4 abutting against the upper end of the conveyor belt 6; a casting assembly is mounted between the upper ends of the four columns 2, the casting assembly including a casting head 17, the casting assembly driving the casting head 17 to move horizontally; a set of flattening assemblies is respectively mounted on the front and rear sides of the mold 3, the flattening assembly including a pressure plate 26, the flattening assembly driving the pressure plate 26 to move above the mold 3 and downward into the mold 3.

[0030] A drive roller 5 is rotatably mounted at each end of the frame 1, and multiple conveyor belts 6 are sleeved between the two drive rollers 5. A sprocket is fixedly mounted at each end of each drive roller 5, and the sprockets on the same side of the two drive rollers 5 are connected by a chain belt 7. A servo motor 8 is fixedly mounted at the end of the frame 1 away from the column 2, and the output shaft of the servo motor 8 is fixedly connected to the end of the drive roller 5 on the side away from the column 2.

[0031] The servo motor 8 drives the transmission roller 5 on the side away from the column 2 to rotate. The transmission roller 5 on the side away from the column 2 drives the sprockets at both ends to rotate. The sprockets at both ends of the transmission roller 5 on the side away from the column 2 drive the sprockets at both ends of the transmission roller 5 on the side close to the column 2 to rotate synchronously through the chain belt 7. The sprockets at both ends drive the transmission roller 5 on the side close to the column 2 to rotate synchronously, thereby realizing the synchronous rotation of the two transmission rollers 5. The two rotating transmission rollers 5 drive the conveyor belt 6 to move.

[0032] The four columns 2 are arranged in a square array, each column 2 is vertical, and the lower end of the column 2 is fixedly connected to the upper end of the frame 1. The mold 3 is a square cylindrical structure with openings at both the top and bottom. The four columns 2 are respectively set on the four outer corners of the mold 3, and the four corners of the mold 3 are fixedly connected to the four columns 2 by a set of clamps.

[0033] The casting assembly also includes a connecting block 9, a first lead screw 10, a first stepper motor 11, a moving block 12, a second stepper motor 13, a second lead screw 14, a guide rod 15, and a supporting block 16.

[0034] A connecting block 9 is fixedly installed at the top of each column 2. A first lead screw 10, horizontally arranged front and back, is rotatably installed between the two connecting blocks 9 on the left side, and a first lead screw 10, horizontally arranged front and back, is also rotatably installed between the two connecting blocks 9 on the right side. A first stepper motor 11 is fixedly installed on each of the two connecting blocks 9 on the rear side, and the output shafts of the two first stepper motors 11 are fixedly connected to the rear ends of the two first lead screws 10 respectively.

[0035] A movable block 12 is screwed onto the outer side of each first lead screw 10, with the two movable blocks 12 maintaining left-right symmetry. A second lead screw 14, horizontally aligned left-right, is rotatably mounted between the two movable blocks 12, and a guide rod 15, horizontally aligned left-right, is fixedly mounted in front of the two movable blocks 12. A second stepper motor 13 is fixedly mounted on one of the movable blocks 12, and the output shaft of the second stepper motor 13 is fixedly connected to the end of the second lead screw 14. A support block 16 is screwed onto the outer side of the second lead screw 14, and the support block 16 is slidably sleeved on the outer side of the guide rod 15. A pouring head 17 is fixedly mounted at the front end of the support block 16, with the pouring direction of the pouring head 17 being horizontally downward, and the pouring head 17 is connected to an external cement tank through a connecting pipe.

[0036] Two first stepper motors 11 operate synchronously, driving two first lead screws 10 to rotate synchronously. Since the two first lead screws 10 are screwed to two moving blocks 12 respectively, the two first lead screws 10 drive the two moving blocks 12 to move back and forth synchronously. The two moving blocks 12 drive the second lead screw 14, guide rod 15, support block 16, and pouring head 17 to move back and forth. The second stepper motor 13 drives the second lead screw 14 to rotate. Since the second lead screw 14 is screwed to the support block 16, the second lead screw 14 drives the support block 16 to move left and right along the guide rod 15. The support block 16 drives the pouring head 17 to move left and right, thereby realizing the horizontal movement of the pouring head 17.

[0037] A retaining groove is provided inside the lower opening of mold 3. An air bladder 18 is fixedly installed on the inner wall of the retaining groove. Air pumps 19 are fixedly installed on both sides of mold 3, and the air outlet of air pump 19 is connected to the inside of air bladder 18. The bottom mold 4 is a horizontally arranged square plate structure. A square ring retaining ring is fixedly installed on the upper surface of the bottom mold 4. A rubber plate 20 is fixedly installed on the lower end of the outer side of the retaining ring, and the rubber plate 20 is fixedly connected to the upper surface of the bottom mold 4.

[0038] When the bottom mold 4 and the mold 3 are engaged, the snap-fit ​​ring on the bottom mold 4 engages with the snap-fit ​​groove at the lower end of the mold 3, thus facilitating the mutual positioning between the bottom mold 4 and the mold 3. The lower end of the mold 3 is in contact with the rubber plate 20, which ensures the sealing of the lower end of the mold 3. Air pump 19 inflates the airbag 18, filling the space between the snap-fit ​​groove and the snap-fit ​​ring, thus ensuring the sealing between the snap-fit ​​groove and the snap-fit ​​ring and preventing leakage of the casting material. Deflating the airbag 18 allows for easy separation of the mold 3 and the bottom mold 4.

[0039] The flattening assembly also includes a support frame 21, a support plate 22, a first electric push rod 23, a guide plate 24, a connecting plate 25, a third stepper motor 27, and a drive gear 28.

[0040] A vertical support frame 21 is fixedly installed on the left and right sides of the front end of the mold 3. A horizontally extending support plate 22 is fixedly installed between the upper ends of the two support frames 21 on the front side. A first electric push rod 23 is fixedly installed in the middle of the support plate 22, and the telescopic rod of the first electric push rod 23 passes vertically downward through the support plate 22. A horizontally extending guide plate 24 is fixedly installed at the end of the telescopic rod of the first electric push rod 23. A row of T-shaped blocks is installed at the lower end of the guide plate 24, and the T-shaped blocks are equidistantly arranged along the length of the guide plate 24. A connecting plate 25 is installed below the guide plate 24. A row of T-shaped grooves is equidistantly arranged on the connecting plate 25 along the left and right directions, and the T-shaped grooves themselves extend along the front and back directions. The row of T-shaped blocks at the lower end of the guide plate 24 is slidably installed inside the row of T-shaped grooves at the upper end of the connecting plate 25. The pressure plate 26 is located below the connecting plate 25, and the left and right ends of the upper end face of the pressure plate 26 are fixedly connected to the left and right ends of the lower end face of the connecting plate 25 through a connecting frame. A third stepper motor 27 is fixedly installed on the upper front side of each of the two support frames 21. The output shaft of the third stepper motor 27 is vertically upward. A drive gear 28 is fixedly installed on the output shaft of each of the two third stepper motors 27. The two drive gears 28 are located on the left and right sides of the connecting plate 25, respectively. A row of toothed grooves is provided at both ends of the pressure plate 26, and the toothed grooves are arranged along the front-back direction.

[0041] The flattening assembly on the rear side of mold 3 is symmetrical to the flattening assembly on the front side of mold 3.

[0042] When it is not necessary to flatten the cement material inside the mold 3, the pressure plates 26 of the two sets of flattening components are located on the front and rear sides of the mold 3 respectively, and the telescopic rod of the first electric push rod 23 is in the extended state.

[0043] When it is necessary to flatten the cement raw material inside mold 3, the first electric push rod 23 of the two sets of flattening components is first controlled to retract. The first electric push rod 23 drives the guide plate 24 to rise. The guide plate 24 drives the connecting plate 25 to rise synchronously through a row of T-slots and a row of T-blocks that cooperate with each other. The connecting plate 25 drives the pressure plate 26 to rise through the connecting frame, so that the height of the pressure plate 26 rises above the height of the upper surface of mold 3. When the first electric push rod 23 retracts to the end, the guide plate 24, the connecting plate 25, and the pressure plate 26 all rise to their highest positions. At this time, a row of toothed grooves on both sides of the connecting plate 25 meshes with the drive gears 28 on the left and right sides, respectively. Then, the two third stepper motors 27 inside the two sets of flattening components rotate synchronously. The two third stepper motors 27 on both sides of the connecting plate 25 drive the two drive gears 28 to rotate synchronously. The two drive gears 28 drive a row of toothed grooves at both ends of the connecting plate 25 to slide towards the side closer to the mold 3. The two rows of toothed grooves drive the connecting plate 25 to slide towards the side closer to the mold 3. The connecting plate 25 drives the pressure plate 26 to slide towards the side closer to the mold 3 until both pressure plates 26 slide above the forming cavity of the mold 3. During the sliding process of the connecting plate 25, the T-slot on the connecting plate 25 slides outside the T-block at the lower end of the guide plate 24. The stability of the connecting plate 25 during sliding is ensured by the mutual cooperation between the T-slot and the T-block. Then, the first electric actuator 23 of the two sets of flattening components extends, driving the guide plate 24 to descend. The guide plate 24, through a row of T-slots and a row of T-blocks that cooperate with each other, drives the connecting plate 25 to descend synchronously. The connecting plate 25, through the connecting frame, drives the pressure plate 26 to descend. The two pressure plates 26 gradually enter the forming cavity of the mold 3 and flatten the upper end of the cement raw material inside the forming cavity of the mold 3. The setting of the pressure plate 26 facilitates the action on the casting raw material, flattens the surface unevenness, and ensures the flatness of the pressure plate.

[0044] The mold-closing assembly includes a support frame 29, a vibration motor 30, a pressure scale 31, and a second electric push rod 32.

[0045] Two support frames 29 are fixedly installed at the lower end of the bottom mold 4, and the conveyor belt 6 is located between the two support frames 29. A vibration motor 30 is fixedly installed at both ends of each support frame 29. A pressure scale 31 is fixedly installed at the lower end of the two support frames 29, and the pressure scale 31 is kept horizontal. A second electric push rod 32 is fixedly installed at each of the four corners of the lower end face of the pressure scale 31. The telescopic rods of the four second electric push rods 32 are vertically upward, and the ends of the telescopic rods of the four second electric push rods 32 are fixedly connected to the four corners of the lower end face of the pressure scale 31.

[0046] The vibration motor 30 facilitates the generation and transmission of vibration to the cement raw materials, expelling air bubbles and increasing the density of the pressure plate. The pressure scale 31 (model PUA579-E300) allows for real-time monitoring of the mold-closing pressure, providing data for precise adjustment to prevent damage to the mold 3 from excessive pressure or impact on the molding effect from insufficient pressure. The second electric actuator 32 drives the support frame 29 to move up and down, enabling the mold-closing and demolding of the bottom mold 4 and the mold 3, and controlling the mold-closing pressure.

[0047] This invention also proposes a method for using a casting and molding equipment for the production of building fiber cement pressure boards, comprising the following steps:

[0048] Step 1: First, connect all electrical equipment with wires and power it on. Start the servo motor 8 installed on the frame 1. The output shaft of the servo motor 8 drives the transmission roller 5 on one side to rotate through the coupling. Since both ends of the transmission roller 5 on both sides are equipped with sprockets, and the two sprockets on the same end are meshed with a chain belt 7, the rotation of the transmission roller 5 on one side will drive the transmission roller 5 on the other side to rotate synchronously through the cooperation of the chain belt 7 and the sprocket. This will drive the multiple conveyor belts 6 sleeved on the outside of the transmission roller 5 to run smoothly. The bottom mold 4 abuts against the top surface of the conveyor belt 6. Driven by the conveyor belt 6, the bottom mold 4 is accurately transported to the mold closing station directly below the mold 3, completing the station preparation before molding.

[0049] Step two: When the bottom mold 4 reaches the mold closing position, the second electric push rods 32 installed at the four corners of the pressure scale 31 in the mold closing assembly are activated. The second electric push rods 32 extend upward to push the support frame 29 up, so that the snap ring on the upper end of the bottom mold 4 gradually snaps into the snap groove at the lower end of the mold 3. The rubber plate 20 installed on the outer side of the bottom mold 4 initially enhances the fit and sealing. Then, the air pumps 19 installed on both sides of the mold 3 are activated. The air pumps 19 inflate the airbags 18 on the inner wall of the snap groove through the air pipes. The inflated airbags 18 fit tightly against the outer wall of the snap ring, further improving the sealing performance of the mold 3 and the bottom mold 4, and effectively preventing leakage of subsequent casting materials. At the same time, the pressure scale 31 installed on the bottom surface of the support frame 29 detects the fitting pressure between the bottom mold 4 and the mold 3 in real time and feeds the data back to the control system. The control system controls the second electric push rods 32 to finely adjust the lifting height according to the pressure value to ensure tight mold closing without damaging the mold 3, thus completing the mold closing and sealing operation.

[0050] Step 3: After the mold is closed and sealed, the cement raw materials in the cement tank are transported to the pouring head 17 of the pouring component by an external pump. The first stepper motor 11, installed on the top surface of the rear connecting block 9, is started. The first stepper motor 11 drives the first lead screw 10, which is longitudinally rotatably connected between the two connecting blocks 9 on the same side, to rotate via a coupling. The moving block 12, threaded onto the first lead screw 10, moves longitudinally accordingly. Simultaneously, the second stepper motor 13, located on the top surface of one moving block 12, is started. The second stepper motor 13 drives the second stepper motor 12, which is laterally rotatably connected between the two moving blocks 12, via a coupling. When the lead screw 14 rotates, the support block 16, which is threadedly connected to the second lead screw 14 and slidably engaged with the guide rod 15 which is laterally fixed, slides laterally along the guide rod 15. The two work together to control the pouring head 17 at the front end of the support block 16 to move to the starting pouring position of the forming cavity of the mold 3. Then, the outlet of the pouring head 17 is opened. Under the continuous drive of the first lead screw 10 and the second lead screw 14, the pouring head 17 moves evenly above the forming cavity, spraying the cement raw material comprehensively and evenly into the forming cavity formed by the mold 3 and the bottom mold 4 until the cement raw material fills to the preset height, thus completing the pouring operation.

[0051] Step four: After the pouring is completed, the vibration motors 30 installed at the front and rear ends of both sides of the support frame 29 are started. The vibration generated by the vibration motors 30 is transmitted to the bottom mold 4 through the support frame 29, and then to the cement raw material in the molding cavity, effectively removing residual air bubbles in the cement raw material and improving the density and structural strength of the pressure plate. During this process, the pressure scale 31 continuously monitors the mold closing pressure. If the vibration causes the pressure to deviate, the control system will promptly control the second electric push rod 32 to finely adjust the height of the support frame 29 to ensure that the mold closing pressure remains stable and to avoid affecting the molding effect due to pressure fluctuations.

[0052] Step 5: After the vibration and exhaust are completed, activate the first electric push rod 23 installed in the middle of the top surface of the support plate 22 in the flattening assembly. The output shaft of the first electric push rod 23 passes through the support plate 22 and drives the guide plate 24 installed laterally at the lower end to move upward. Since the top surface of the connecting plate 25 has multiple equidistant T-slots longitudinally, and the T-blocks slidably connected in the T-slots are fixed to the guide plate 24, and the pressure plate 26 is connected to the bottom of the connecting plate 25 through the connecting frame, the movement of the guide plate 24 will drive the connecting plate 25 and the pressure plate 26 to rise synchronously. When the connecting plate 25 rises to the point where its sides open When the toothed groove is engaged with the drive gear 28 connected to the output shaft of the third stepper motor 27 installed on the upper end of the support frame 21, the first electric push rod 23 is stopped, the third stepper motor 27 is started, and the drive gear 28 rotates, causing the connecting plate 25 to move smoothly, thereby causing the pressure plate 26 to move upward to the corresponding position above the forming cavity of the mold 3; then the first electric push rod 23 is started again to control the pressure plate 26 to descend and act on the cement raw material inside the forming cavity, flattening the surface of the cement raw material, eliminating unevenness, and ensuring the surface flatness of the building fiber cement pressure board.

[0053] Step Six: After the building fiber cement pressure board is fully formed in the molding cavity, start the air pump 19 to release air. The airbag 18 contracts and disengages from the retaining ring on the bottom mold 4, releasing the seal between the mold 3 and the bottom mold 4. Then, start the second electric push rod 32. The second electric push rod 32 contracts and drives the support frame 29 to descend, and the bottom mold 4 re-aggregates against the top surface of the conveyor belt 6. Start the servo motor 8 again. Through the coordinated transmission of the transmission roller 5, chain belt 7 and conveyor belt 6, the bottom mold 4 containing the molding pressure board is transported from the mold closing station to the designated discharge position, completing the demolding and transfer. After the molding operation is completed, disconnect the power supply to all electrical equipment, and perform subsequent cleaning and maintenance on the equipment. The entire usage process is now complete.

[0054] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A casting and molding equipment for producing building fiber cement pressure boards, characterized in that: The system includes a frame (1), a conveyor belt (6) on the frame (1), four columns (2) fixedly installed on the upper side of one end of the frame (1), a mold (3) fixedly installed between the four columns (2), and a liftable bottom mold (4) installed below the mold (3) via a mold closing assembly. The bottom mold (4) is abutted against the upper end of the conveyor belt (6). A casting assembly is installed between the upper ends of the four columns (2). The casting assembly includes a casting head (17). The casting assembly drives the casting head (17) to move horizontally. A set of flattening assemblies is installed on the front and rear sides of the mold (3). The flattening assembly includes a pressure plate (26). The flattening assembly drives the pressure plate (26) to move above the mold (3) and downward into the mold (3). A retaining groove is provided on the inner side of the lower opening of the mold (3), and an air bag (18) is fixedly provided on the inner wall of the retaining groove. An air pump (19) is fixedly provided on the outer side of the mold (3), and the air pump (19) is connected to the inside of the air bag (18). A retaining ring is fixedly provided on the upper surface of the bottom mold (4), and a rubber plate (20) is fixedly provided on the lower end of the outer side of the retaining ring. The flattening assembly also includes a support frame (21), a support plate (22), and a first electric push rod (23); a support frame (21) is fixedly installed on the left and right sides of the front end of the mold (3), and a support plate (22) extending horizontally is fixedly installed between the upper ends of the two support frames (21) on the front side. A first electric push rod (23) is fixedly installed in the middle of the support plate (22), and the telescopic rod of the first electric push rod (23) passes vertically downward through the support plate (22); The flattening assembly also includes a guide plate (24) and a connecting plate (25); a guide plate (24) is fixedly installed at the end of the telescopic rod of the first electric push rod (23), a row of T-shaped blocks is installed at the lower end of the guide plate (24), a connecting plate (25) is installed below the guide plate (24), a row of T-shaped grooves is equidistantly installed on the connecting plate (25), and a row of T-shaped blocks at the lower end of the guide plate (24) is slidably installed inside a row of T-shaped grooves at the upper end of the connecting plate (25); the pressure plate (26) is located below the connecting plate (25), and the left and right ends of the upper end face of the pressure plate (26) are fixedly connected to the left and right ends of the lower end face of the connecting plate (25) through a connecting frame; The flattening assembly also includes a third stepper motor (27) and a drive gear (28); a third stepper motor (27) is fixedly installed on the upper front end of each of the two support frames (21), and a drive gear (28) is fixedly installed on the output shaft of each of the two third stepper motors (27), and the two drive gears (28) are located on the left and right sides of the connecting plate (25); a row of toothed grooves is provided at both ends of the pressure plate (26); The mold assembly includes a support frame (29), a vibration motor (30), a pressure scale (31), and a second electric push rod (32). Two support frames (29) are fixedly installed at the lower end of the bottom mold (4), and the conveyor belt (6) is located between the two support frames (29). A vibration motor (30) is fixedly installed at both the left and right ends of each support frame (29). The same pressure scale (31) is fixedly installed at the lower end of the two support frames (29), and a second electric push rod (32) is fixedly installed at each of the four corners of the lower end face of the pressure scale (31).

2. The casting and molding equipment for producing building fiber cement pressure boards according to claim 1, characterized in that: A transmission roller (5) is rotatably installed at both ends of the frame (1), and multiple conveyor belts (6) are sleeved between the two transmission rollers (5); a sprocket is fixedly installed at both ends of each transmission roller (5), and the sprockets on the same side of the two transmission rollers (5) are connected by a chain belt (7); a servo motor (8) is fixedly installed at one end of the frame (1), and the output shaft of the servo motor (8) is fixedly connected to the end of one of the transmission rollers (5).

3. The casting and molding equipment for producing building fiber cement pressure boards according to claim 1, characterized in that: The mold (3) is a square cylindrical structure with openings at both the top and bottom. Four columns (2) are respectively set on the outside of the four corners of the mold (3). The four corners of the mold (3) are fixedly connected to the four columns (2) by a set of clamps.

4. The casting and molding equipment for producing building fiber cement pressure boards according to claim 1, characterized in that: The casting assembly also includes a connecting block (9), a first lead screw (10), and a first stepper motor (11). A connecting block (9) is fixedly installed on the upper end of each column (2). A first lead screw (10) is rotatably installed between the two connecting blocks (9) on the left and between the two connecting blocks (9) on the right. A first stepper motor (11) is fixedly installed on the two connecting blocks (9) on the rear side. The output shafts of the two first stepper motors (11) are fixedly connected to the rear ends of the two first lead screws (10).

5. The casting and molding equipment for producing building fiber cement pressure boards according to claim 4, characterized in that: The casting assembly also includes a moving block (12), a second stepper motor (13), a second lead screw (14), a guide rod (15), and a support block (16). A moving block (12) is screwed onto the outside of each first lead screw (10). A rotatable second lead screw (14) and a fixed guide rod (15) are arranged between two moving blocks (12). A second stepper motor (13) is fixedly arranged on one of the moving blocks (12). The output shaft of the second stepper motor (13) is fixedly connected to the end of the second lead screw (14). A support block (16) is screwed onto the outside of the second lead screw (14). The support block (16) is slidably sleeved on the outside of the guide rod (15). The casting head (17) is fixedly arranged at the front end of the support block (16).

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