Building assembly type hollow wallboard production process and equipment thereof

Abstract

The invention discloses building assembly type hollow wallboard production equipment and process. The building assembly type hollow wallboard production equipment comprises a wallboard forming machine for producing a building assembly type hollow wallboard through a concrete pouring process and an automatic tube drawing bench for placing a reinforcement cage, placing and drawing out a hole-forming circular steel tube and placing a base die. The wallboard forming machine adopts a vertical forming template; an automatic tube drawing bench is arranged above a machine frame of the wallboard forming machine, the automatic tube drawing bench lifts a reinforcement cage together with the hole-forming circular steel tubes which are inserted into the reinforcement cage and are arranged and fixed and the base die into the forming template, and the multiple hole-forming circular steel tubes in a wallboard which is formed by casting in the wallboard forming machine are vertically drawn out. According to the production line, assembly type wallboards are produced through vertical upright forming, automatic mold filling and automatic mold removing can be achieved, the production efficiency of a production site can be fully exerted, the labor intensity of workers and labor consumption can be effectively reduced, and the production line is a flow production line formed by grouping a plurality of single wallboard forming machines. And the problem of realizing full-automatic flow line production of large-size concrete members of the fabricated hollow wallboards is radically and thoroughly solved.

Description

Technical Field

[0001] This invention relates to the field of hollow wall panel production technology, and in particular to a production process and equipment for prefabricated hollow wall panels for buildings. Background Technology

[0002] Currently, the factory production of prefabricated wall panels generally employs a moving flat mold production method. The process involves pouring concrete into a moving flat mold in the molding workshop, then transporting it to an initial curing area for approximately 24 hours, followed by further curing in a maintenance workshop for at least 15 days before shipment. If the wall panels cannot be shipped immediately, they need to be transported to a storage workshop. While this production method has largely achieved industrialized wall panel production, it has several drawbacks: First, the workshop requires a very large area, resulting in low production efficiency and making it difficult to meet the large-scale, mass-production needs of on-site assembly in construction projects. Second, the large-scale transport of concrete components within the production area is labor-intensive and energy-intensive. Third, the high labor intensity and labor costs contribute to relatively high production costs. Furthermore, the inconvenience of transporting large concrete components within and outside the production area further contributes to the high price of prefabricated wall panels, which in turn makes prefabricated buildings more expensive than traditional buildings and thus less acceptable to the market.

[0003] Another prefabricated wall panel production method is the multi-layer stacking method from the plane upwards. The production process involves using steel lifting formwork machinery. First, a ground formwork is used as the bottom formwork for the first wall panel, with movable, fixed templates as side formwork around it. After the reinforcing steel frame is placed, concrete is poured. After 24 hours, once the concrete reaches the strength for demolding, the four side formworks are loosened, and the lifting formwork machine lifts the four side formworks to the top of the first wall panel. The upper surface of the first wall panel serves as the bottom formwork for the second wall panel. The four side formworks are then adjusted upwards to the height position for the second wall panel and fixed. The reinforcing steel frame is then placed, and concrete is poured again. This process is repeated, stacking the panels upwards, typically producing more than 15 wall panels. The advantages of this production process are: it largely solves the problem of the large production area required by the currently common method of using movable flat formwork for wall panel production. It saves space, reduces the workload of transporting concrete wall panels within the site, effectively improves the production efficiency of the production site, and to a certain extent enhances the ability to meet the large-scale production requirements of building construction projects. However, the following shortcomings exist: First, due to the large area of ​​each prefabricated wall panel, once the upper wall panels are cast, it is impossible to water and cure the previously produced bottom wall panels. This easily leads to the cast concrete burning due to insufficient water penetration, severely affecting the quality of the wall panels. Second, wall panels are generally produced one at a time, stacked every 24 hours. If 15 wall panels are stacked, it would take more than 15 days to produce. Furthermore, the last wall panel produced at the top requires at least 15 days of curing. Therefore, even if the bottom wall panel reaches its factory strength first, it will still be the last to be shipped. This prevents the "first to reach age, first to ship" principle; instead, it results in the "later to age, first to ship" and vice versa. Third, labor costs remain high, and the workers' workload is still significant. In summary, this not only fails to fully utilize the production efficiency of the production site and effectively reduce the labor intensity and labor costs, but also seriously affects the product quality of the wall panels due to the reversed product age. Summary of the Invention

[0004] This invention addresses the problems existing in the above two prefabricated wall panel production processes by proposing a prefabricated hollow wall panel production equipment. It can automatically install and dismantle molds, and produce prefabricated wall panels through vertical forming. Moreover, it is a production line formed by grouping several individual wall panel forming machines, which can fully utilize the production efficiency of the production site and effectively reduce the labor intensity and labor consumption of workers. It fundamentally and thoroughly solves the problem of achieving fully automated production line production of large-volume concrete components for prefabricated hollow wall panels.

[0005] The technical solution adopted in this invention is: a production equipment for prefabricated hollow wall panels, including a wall panel forming machine for producing prefabricated hollow wall panels using a concrete casting process, and an automatic pipe pulling machine for placing a reinforcing cage, placing and pulling out a perforated circular steel pipe, and placing a bottom formwork. The wall panel forming machine adopts a vertical forming template and is designed with a longitudinal walking drive device at the bottom to drive the wall panel forming machine to move back and forth longitudinally. The forming template includes a large vertical template permanently fixed in the forming area of ​​the frame, and side vertical side molds fixed on both sides of the frame. The large panel surface of the wall panel produced in the previous batch is covered with a release film or fixed as required for the production of the first wall panel. The two vertical side molds are automatically adjusted simultaneously when the wall panel forming machine frame is driven to move longitudinally, so as to tighten and loosen the side molds to complete the molding and demolding. Two parallel transverse guide rails are provided above the frame of the wall panel forming machine. The automatic pipe pulling machine is located on the parallel transverse guide rails and can slide automatically. The automatic pipe pulling machine located at the top of the wall panel forming machine lifts the reinforcing cage together with the pre-inserted and fixed circular steel pipes and the bottom mold into the forming template, and vertically pulls out several circular steel pipes that have been cast and formed in the wall panel inside the wall panel forming machine.

[0006] The bottom of the wall panel forming machine frame is designed with a reverse locking and fixing device that is opposite to the longitudinal forward direction. After the forming template is in place at the production station, the three vertical upright templates are fixed and locked to prevent the vertical upright side templates from shifting and going out of shape during concrete pouring, which would cause deviations in the shape and size of the formed wall panel.

[0007] The bottom of the wall panel forming machine frame is designed with a longitudinal walking drive device and walking wheels. The longitudinal walking drive device drives the walking wheels of the wall panel forming machine to move back and forth on the ground guide rail, moving the template fixed on the wall panel forming machine frame to the set position for casting the wall panel.

[0008] The assembled wall panel production line consists of multiple wall panel forming machines. Each production line is a single-row production line formed by multiple wall panel forming machines arranged in parallel, or a double-row or multi-row production line formed by multiple wall panel forming machines arranged in parallel. The top of the frame of each wall panel forming machine is connected to the longitudinal steel beam. The upper part of the transverse steel beam is designed with two fixed parallel guide rails for the transverse movement of the automatic pipe pulling machine and two movable parallel guide rails that can dock with the adjacent wall panel forming machines arranged in parallel.

[0009] The bottom of the automatic pipe pulling machine frame is designed with a lateral movement drive device and traveling wheels. The lateral movement drive device drives the automatic pipe pulling machine to slide automatically laterally on two parallel lateral guide rails set on the top of the wall panel forming machine, which facilitates the lateral movement of the automatic pipe pulling machine on the top of the wall panel forming machine.

[0010] The automatic pipe pulling machine frame is designed with a limit locking device at the bottom for precise positioning during pipe pulling and loading operations. The upper part of the frame features a longitudinal reciprocating trolley for the robotic arm, equipped with an automatic drive device. The automatic pipe pulling machine moves back and forth on the top slide rail of the frame, facilitating the robotic arm to automatically feed the pulled-out perforated circular steel pipes longitudinally into the reinforcing cage located in the pipe loading area of ​​the wall panel forming machine, and then return to the wall panel forming area to continue pulling pipes. The upper part of the longitudinal reciprocating trolley for the robotic arm is designed with two parallel transverse slide rails. The robotic arm slides laterally on the longitudinal reciprocating trolley, facilitating lateral movement and positioning of the robotic arm to sequentially pull out several perforated circular steel pipes cast into the wall panel after reaching demolding strength.

[0011] Multiple transverse sliding seats are designed on the parallel transverse slide rail. Each transverse sliding seat is fixedly connected to a vertical tube-pulling robotic arm. The two parallel lead screws with fixed ends are connected in series according to the set requirements. When the lead screws rotate according to the set program, they drive the nut of the transverse sliding seat, which drives the vertical tube-pulling robotic arm connected to the transverse sliding seat to move transversely in an orderly manner, so as to complete the precise positioning and automatic tube pulling of the tube-pulling robotic arm.

[0012] The tail end of the longitudinal reciprocating trolley of the automatic pipe puller is designed with an anti-tipping counterweight and an anti-tipping device to prevent the automatic pipe puller from tipping over when the pipe pulling operation is under load.

[0013] The automatic tube pulling machine's robotic arm is designed with two parallel vertical lifting screws. The bottom end is connected to a tube gripper, and the top end is connected to a horizontal rotation drive motor. The motor rotation drives the two vertical lifting screws to rotate, which in turn drives the tube gripper to move up and down vertically, thus achieving the purpose of automatic tube pulling, tube feeding, and tube loading by the robotic arm of the automatic tube pulling machine.

[0014] When the robotic arm of the pipe puller vertically raises and lowers the pipe gripper to the top of the perforated circular steel pipe in the wall panel, the robotic arm controls the pipe gripper to rotate horizontally in both directions. When the pipe gripper rotates and drives the perforated circular steel pipe to rotate in one direction, the outer surface of the perforated circular steel pipe is loosened from the bonding surface of the hollow concrete hole in the wall panel. After the top of the perforated circular steel pipe is tightly gripped, the robotic arm lifts it vertically upward and pulls it out. Then it is sent to the position set inside the reinforcing cage. When it rotates in the opposite direction, the pipe gripper disengages from the perforated circular steel pipe and then resets to the next pipe pulling position to perform the pipe pulling operation.

[0015] The production process employed in this invention is as follows: A permanent, movable, vertically oriented large template and two vertically oriented side templates are fixed to the frame of a wall panel forming machine. When producing the first wall panel, the wall panel forming machine is automatically moved to the position where the first wall panel is being produced. A vertically oriented large template for the other side of the first wall panel is fixed to the corresponding side of the permanently fixed vertically oriented large template on the wall panel forming machine. Then, an automatic pipe-pulling machine's robotic arm lifting device lifts the reinforcing cage, along with the pre-inserted and fixed circular steel pipes and the bottom mold, into the adjacent... The large formwork already fixed on the other side is then adjusted and aligned with the large formwork and side formwork that are permanently fixed on the frame. These formworks are then aligned and aligned with the large formwork that has already been vertically fixed on the other side. After the formworks are aligned, a cavity for pouring concrete is formed. The cavity is then automatically fixed by machinery. At the same time, the steel cage that has been placed inside the formwork is vertically fixed inside the cavity formed by the formworks. After adjustment and fixing, the pipe-pulling machine automatically moves to the top of the next wall panel forming machine to work in conjunction with the next wall panel forming machine. After the pipe-pulling machine moves away, the concrete pump is started to deliver concrete into the cavity of the formwork and compact it. After the concrete reaches the demolding strength in 24 hours, the pipe pulling machine moves to the upper part of the wall panel forming machine again, and automatically pulls out several perforated circular steel pipes vertically from the upper part and automatically sends them into the steel cage that has been placed in the pipe loading position of the wall panel forming machine, where they are arranged and fixed as required; then the wall panel forming machine automatically moves longitudinally to demold, and the formed wall panel stays still at the forming station and is watered and covered for curing in accordance with the usual method until it reaches the required age before being loaded onto the truck and shipped out. Once the wall panel forming machine moves longitudinally away from the wall panel and reaches the working space, the production of the next batch of wall panels begins: First, a release film is applied to the surface of the solidified and demolded wall panel. Then, the steel cage with the pre-inserted circular steel pipes, along with the bottom mold, is lifted into the working space of the wall panel forming machine using a pipe-pulling machine lifting device, close to the large wall panel surface with the release film applied. The wall panel forming machine is then started to return to its original position, allowing one large panel surface of the previous wall panel to align with the large template and side molds fixed on the wall panel forming machine, thus fixing the steel cage within the cavity formed around one large wall panel surface and the three template surfaces. Then, the pipe-pulling machine is automatically moved to the next wall panel forming machine to work in conjunction with it; the concrete pump is started to pour concrete and vibrate it to compact it; this process is repeated in a cycle, vertically stacking wall panels in batches and according to the process on the wall panel production line.

[0016] Compared with the prior art, the present invention has the following advantages: This invention employs a vertical wall panel forming machine. Approximately every 24 hours, wall panels are repeatedly stacked along the longitudinal direction of the ground rail on one side of the large panel surface of the vertical wall panel forming machine. Wall panels that have already reached their designated age can be loaded onto trucks and shipped out at any time, without restriction, allowing for the first panel to reach its age to be shipped first, and the last panel to be shipped later. This enables the production site to be infinitely recycled, maximizing its production efficiency.

[0017] Compared to the mobile flat mold wall panel forming machine, the production machinery of this application perfectly combines the wall panel production forming workshop, the initial curing workshop, the static curing workshop, and the finished product storage warehouse into one, requiring only one-quarter of the workshop (site) space needed for wall panel production using the mobile flat mold production method.

[0018] The wall panel production method of the relative plane upward vertical stacking of production machinery in this application not only significantly reduces the workshop space occupied by production, but also increases the utilization rate of production site by more than 50% in terms of time occupied, enabling the production site to be kept idle and the production line can be operated indefinitely.

[0019] Compared to the planar upward vertical stacking method of production machinery, the production machinery of this application is an automatic production method that stacks vertically on the side of the large wall panel, and the wall panel is formed by pulling tubes vertically upward. Although there are no gaps between the wall panels, water can be poured into the inside of the wall panel for curing through the vertical holes in the wall panel, which completely solves the problem of insufficient watering and curing of the wall panel, thereby ensuring the product quality of the wall panel.

[0020] Compared to the previous two types of wall panel production machinery, this vertical stacking method machinery, which stands upright on the side of the large wall panel surface, can automatically complete the processes of mold installation and removal, vertical pipe pulling, mechanical movement, placement of reinforcing cages, and concrete pouring. It maximizes the replacement of manual labor with machinery, significantly improving the production quality and efficiency of wall panels. Most importantly, it fully automates the production of prefabricated wall panels into a streamlined assembly line.

[0021] Significantly reduced factory construction investment: ① Compared to mobile flat mold machinery production sites and workshops, it reduces site investment costs by 75% under the premise of the same production capacity. ② Compared to planar-to-vertical stacking production machinery, it increases site utilization by 50% in terms of time occupied under the premise of the same production capacity, further reducing site investment costs.

[0022] Significantly reduced overall production costs: Compared with moving flat mold machinery and planar stacking production machinery, due to the increased automation of the machinery in this application, production efficiency is greatly improved, labor consumption is minimized, and the overall cost of the wall panel production and forming process is significantly reduced, thereby reducing the production cost of the entire wall panel production and forming process by more than 60%.

[0023] Simple production: Compared with the previous two types of machinery, the machinery of this application achieves automated production through automatic control programs. Production workers only need to operate the machinery and perform some auxiliary tasks by designing programs. The operation is simple, the labor intensity is low, and the production environment and conditions are fundamentally improved. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of a prefabricated hollow wall panel production equipment according to the present invention; Figure 2 This is a schematic diagram of the arrangement of the forming templates in the wall panel forming machine of the present invention; Figure 3 This is a schematic diagram of the base structure of the tube-extraction machine of the present invention; In the diagram: 1 is the frame of the wall panel forming machine, 2 is the wall panel forming area of ​​the wall panel forming machine, 3 is the reverse locking and fixing device, 4 is the traveling wheel, 5 is the parallel transverse slide rail, 6 is the overall frame of the pipe pulling machine, 7 is the anti-tipping counterweight of the pipe pulling machine, 8 is the anti-tipping device of the pipe pulling robotic arm, 9 is the transverse moving sliding seat, 10 is the longitudinal reciprocating moving trolley of the robotic arm, 11 is the pipe pulling robotic arm, 12 is the pipe gripper, 13 is the longitudinal walking drive device, 14 is the side mold, 15 is the vertical upright large surface template, 16 is the automatic assembly and disassembly device for the side mold, 17 is the transverse moving drive device, and 18 is the limit locking device. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0026] This invention employs a method of vertically stacking one or more individual prefabricated wall panels on the side of the wall panel, and a prefabricated large panel production line formed by automatically loading and unloading wall panels. Each production line can be a single-row production line formed by multiple wall panel forming machines arranged in parallel, or a double-row or multi-row production line formed by multiple wall panel forming machines arranged in parallel.

[0027] Each wall panel forming machine in a production line is equipped with an automatic horizontally moving vertical pipe-extracting machine at the top. This machine automatically and vertically extracts several perforated circular steel pipes from the already cast wall panels on each machine. The extracted pipes are then automatically fed into the reinforcing cage of the next wall panel to be cast, arranged as required, and fixed inside the cage. The machine's robotic arm then automatically lifts the reinforcing cage, along with the perforated circular steel pipes and the base template, to the forming area of ​​the wall panel forming machine. The automatic pipe-extracting machine then moves horizontally to the next wall panel forming machine on the production line, repeating the process on the next machine. This sequential, parallel arrangement forms a continuous production line for the vertical pipe-extraction and loading operation.

[0028] from Figure 1 , Figure 2 It is understood that the wall panel forming machine of the present invention adopts a vertical forming template. The forming template includes a vertical large-face template permanently fixed at the forming area of ​​the frame, and a side vertical side mold fixed on each side of the frame. The large-face template for producing the first wall panel is laid on one side of the wall panel produced in the previous batch or fixed as required. The two vertical side molds are automatically adjusted to tighten and loosen the side molds when the wall panel forming machine frame is driven to move longitudinally, thus completing the molding and demolding.

[0029] The bottom of the wall panel forming machine frame is designed with four traveling wheels. The traveling wheels travel longitudinally back and forth on the ground guide rail, moving the template fixed on the wall panel forming machine frame to the set position for casting the wall panel.

[0030] The bottom of the wall panel forming machine frame is designed with a reverse locking device that is opposite to the longitudinal forward direction. When the permanently fixed template on the wall panel forming machine frame is in place at the production station, it plays a role in fixing and locking, preventing displacement and template slippage when pouring concrete into the vertical cavity formed by the template, which would cause deviation in the shape and size of the formed wall panel.

[0031] The wall panel forming machine has a longitudinal travel drive device on each side of its bottom, which automatically drives the wall panel forming machine to move back and forth longitudinally. At the top of the main frame of the wall panel forming machine, which is connected to the longitudinal steel beam, are two fixed parallel guide rails for the lateral movement of the automatic pipe pulling machine, and two movable parallel guide rails that can dock with adjacent wall panel forming machines grouped together.

[0032] When the automatic pipe puller completes the pipe pulling operation on the top of the previous wall panel forming machine and moves laterally to the top of the next parallel wall panel forming machine, it connects with the fixed parallel guide rail on the next parallel wall panel forming machine through two movable parallel guide rails, so that the automatic pipe puller can automatically slide to the top of the next wall panel forming machine to carry out pipe pulling and pipe loading operations.

[0033] from Figure 3 It is known that the automatic pipe pulling machine has a lateral movement drive device and four wheels at the bottom of its frame. The lateral movement drive device drives the automatic pipe pulling machine to slide automatically laterally on two parallel lateral guide rails set at the top of the wall panel forming machine. This facilitates the automatic pipe pulling machine's lateral movement on the top of the wall panel forming machine, allowing it to reach the top of each wall panel forming machine on a single-row production line composed of individual wall panel forming machines arranged in parallel for pipe pulling and loading operations. The bottom of the automatic pipe pulling machine frame is designed with a limit locking device to prevent the automatic pipe pulling machine from sliding freely during pipe pulling and loading operations, which would affect the precise positioning of the pipe pulling and loading operations. The automatic pipe pulling machine frame is designed with a longitudinal reciprocating trolley for the robotic arm, which is equipped with an automatic drive device. The automatic pipe pulling machine moves back and forth on the slide rail at the top of the frame, which facilitates the robotic arm to automatically feed the pulled-out perforated circular steel pipes longitudinally into the steel cage set in the pipe loading area of ​​the wall panel forming machine, and then return to the wall panel forming area of ​​the wall panel forming machine to continue pulling pipes. The upper part of the longitudinal reciprocating trolley for the robotic arm is designed with two parallel transverse slide rails. The robotic arm of the pipe pulling machine slides laterally back and forth on the longitudinal reciprocating trolley, which facilitates the transverse movement and positioning of the robotic arm to sequentially pull out several perforated circular steel pipes cast into the wall panel that has reached the demolding strength. Multiple transverse sliding seats are designed on the parallel transverse slide rails. Each transverse sliding seat is fixedly connected to a vertical pipe-pulling robotic arm. These are connected in series by two parallel lead screws fixed at both ends, according to a set program. When the lead screws rotate according to the set program, they drive the nuts of the transverse sliding seats, causing the vertical pipe-pulling robotic arm connected to the transverse sliding seats to move transversely in an orderly manner, completing the precise positioning and automatic pipe pulling of the robotic arm. The tail end of the longitudinal reciprocating trolley of the automatic pipe-pulling machine's robotic arm is designed with an anti-tipping counterweight and an anti-tipping device to prevent the robotic arm from tipping over under load during pipe pulling operations. The automatic pipe-pulling machine's robotic arm is designed with two parallel vertical lifting lead screws. The bottom end is connected to a pipe gripper, and the top end is connected to a horizontal rotation drive motor. The motor rotation drives the two vertical lifting lead screws to rotate, causing the pipe gripper to move vertically up and down, achieving the automatic pipe pulling, feeding, and loading functions of the robotic arm.

[0034] When the robotic arm of the pipe puller vertically raises and lowers the pipe gripper to the top of the perforated circular steel pipe in the wall panel and engages it, the robotic arm controls the pipe gripper to rotate horizontally in both directions. When the pipe gripper rotates and drives the perforated circular steel pipe to rotate in one direction, the outer surface of the perforated circular steel pipe is loosened from the bonding surface of the hollow concrete hole in the wall panel. After the top of the perforated circular steel pipe is tightly gripped, the robotic arm lifts it vertically upward and pulls it out. Then it is sent to the position set inside the reinforcing cage. When it rotates in the opposite direction, the pipe gripper disengages from the perforated circular steel pipe and then resets to the next pipe pulling position to perform the pipe pulling operation.

[0035] The specific steps for producing prefabricated hollow wall panels for buildings according to this invention are as follows: 1. Place the pre-processed steel cage in the steel cage loading area of ​​the wall panel forming machine.

[0036] 2. Start the pipe pulling machine to pull out the perforated round steel pipes from the wall panel as required, send them into the reinforcing cage, arrange them as required, and fix them in place.

[0037] 3. Move the wall panel forming machine to the designated production operation space position for the wall panel.

[0038] 4. Lay a release film on one side of the large panel of the wall panel that has been produced in the previous batch on the production line, or fix the large template of the first wall panel as required.

[0039] 5. Start the pipe pulling machine to hoist the steel cage and the base template, which are fixed with the hole-forming round steel pipe, to the forming station of the wall panel forming machine.

[0040] 6. Start the wall panel forming machine and move it longitudinally back to its original position, then press the permanent template fixed on the frame of the forming area of ​​the wall panel forming machine against the steel cage.

[0041] 7. Adjust the bottom fastening and locking device of the wall panel forming machine, and press the large template fixed on the wall panel forming machine against the steel cage and lock it in the set position.

[0042] 8. Start the automatic side mold loading and unloading device of the wall panel forming machine, and adjust and lock the two side molds according to the mold loading requirements.

[0043] 9. Start the automatic pipe-pulling machine on the top of the wall panel forming machine and move it horizontally to the top of the next wall panel forming machine to perform pipe-pulling and pipe-installing operations according to the process.

[0044] 10. Start the concrete pump to pour concrete into the forming template of the wall panel forming machine and vibrate it to compact it.

[0045] 11. After the concrete reaches a certain strength, water it for initial curing as needed.

[0046] 12. Generally, after 24 hours, the automatic tube feeder on top of the wall panel forming machine is returned to the top of the first wall panel forming machine that started production in the previous batch, and the next batch of wall panels is produced in sequence along the production line. The production operation is carried out in batches.

[0047] 13. Finished wall panels that have been demolded and are stationary at the molding station shall be cured by watering and covering them as usual. After reaching the required age for shipment, they shall be loaded onto trucks and shipped out in sequence.

[0048] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A prefabricated hollow wall panel production equipment, characterized in that: This includes wall panel forming machines that use cast concrete technology to produce prefabricated hollow wall panels for buildings, and automatic pipe pulling machines that place and pull out perforated circular steel pipes and place the bottom formwork. The wall panel forming machine adopts a vertical forming template and is designed with a longitudinal walking drive device at the bottom to drive the wall panel forming machine to move back and forth longitudinally. The forming template includes a large vertical template permanently fixed in the forming area of ​​the frame, and side vertical side molds fixed on both sides of the frame. The large panel surface of the wall panel produced in the previous batch is covered with a release film or the large template for producing the first wall panel is fixed as required. The two vertical side molds are automatically adjusted to tighten and loosen the side molds when the wall panel forming machine frame moves longitudinally, thus completing the molding and demolding. Two parallel transverse guide rails are provided above the frame of the wall panel forming machine. The automatic pipe pulling machine is located on the parallel transverse guide rails and can slide automatically. The automatic pipe pulling machine located at the top of the wall panel forming machine lifts the reinforcing cage together with the pre-inserted and fixed circular steel pipes and the bottom mold into the forming template, and vertically pulls out several circular steel pipes that have been cast and formed in the wall panel inside the wall panel forming machine.

2. The prefabricated hollow wall panel production equipment according to claim 1, characterized in that: The assembled wall panel production line consists of multiple wall panel forming machines. Each production line is a single-row production line formed by multiple wall panel forming machines arranged in parallel, or a double-row or multi-row production line formed by multiple wall panel forming machines arranged in parallel. The top of the frame of each wall panel forming machine is connected to the longitudinal steel beam. The upper part of the transverse steel beam is designed with two fixed parallel guide rails for the transverse movement of the automatic tube pulling machine and two movable parallel guide rails that can dock with the adjacent wall panel forming machines arranged in parallel.

3. The prefabricated hollow wall panel production equipment according to claim 1, characterized in that: The bottom of the wall panel forming machine frame is designed with a longitudinal walking drive device and walking wheels. The longitudinal walking drive device drives the walking wheels of the wall panel forming machine to move back and forth on the ground guide rail, moving the vertical template fixed on the wall panel forming machine frame to the set position for casting the wall panel.

4. The prefabricated hollow wall panel production equipment according to claim 1, characterized in that: The bottom of the wall panel forming machine frame is designed with a reverse locking and fixing device that is opposite to the longitudinal forward direction. After the forming template is in place at the production station, the three vertical upright templates are fixed and locked to prevent the vertical upright templates from shifting and causing the formwork to go out of place during concrete pouring, which would result in deviations in the shape and size of the formed wall panel.

5. The prefabricated hollow wall panel production equipment according to claim 1, characterized in that: The bottom of the automatic pipe pulling machine frame is designed with a lateral movement drive device and traveling wheels. The lateral movement drive device drives the automatic pipe pulling machine to slide automatically laterally on two parallel lateral guide rails set on the top of the wall panel forming machine, which facilitates the lateral movement of the automatic pipe pulling machine on the top of the wall panel forming machine; The automatic pipe pulling machine frame is designed with a longitudinal reciprocating trolley for the robotic arm, which is equipped with an automatic drive device. The automatic pipe pulling machine moves back and forth on the slide rail at the top of the frame, which facilitates the robotic arm to automatically feed the pulled-out perforated circular steel pipes longitudinally into the steel cage set in the pipe loading area of ​​the wall panel forming machine, and then return to the wall panel forming area of ​​the wall panel forming machine to continue pulling pipes. The upper part of the longitudinal reciprocating trolley for the robotic arm is designed with two parallel transverse slide rails. The robotic arm of the pipe pulling machine slides laterally back and forth on the longitudinal reciprocating trolley, which facilitates the transverse movement and positioning of the robotic arm to sequentially pull out several perforated circular steel pipes cast into the wall panel that has reached the demolding strength.

6. The prefabricated hollow wall panel production equipment according to claim 5, characterized in that: The bottom of the automatic pipe pulling machine frame is designed with a limit locking device for precise positioning of the automatic pipe pulling machine frame during pipe pulling and loading operations.

7. The prefabricated hollow wall panel production equipment according to claim 5, characterized in that: Multiple transverse sliding seats are designed on the parallel transverse slide rail. Each transverse sliding seat is fixedly connected to a vertical tube-pulling robotic arm. The two parallel lead screws with fixed ends are connected in series according to the set requirements. When the lead screws rotate according to the set program, they drive the nut of the transverse sliding seat, which drives the vertical tube-pulling robotic arm connected to the transverse sliding seat to move transversely in an orderly manner, so as to complete the precise positioning and automatic tube pulling of the tube-pulling robotic arm.

8. The prefabricated hollow wall panel production equipment according to claim 5, characterized in that: The tail end of the longitudinal reciprocating trolley of the automatic pipe puller is designed with an anti-tipping counterweight and an anti-tipping device to prevent the automatic pipe puller from tipping over when the pipe pulling operation is under load.

9. The prefabricated hollow wall panel production equipment according to claim 5, characterized in that: The automatic pipe pulling machine's robotic arm is designed with two parallel vertical lifting screws. The bottom end is connected to a pipe gripper, and the top end is connected to a horizontal rotation drive motor. The motor rotation drives the two vertical lifting screws to rotate, causing the pipe gripper to move up and down vertically, thus achieving the purpose of automatic pipe pulling, delivery, and loading. When the robotic arm vertically lifts the pipe gripper to the top of the perforated circular steel pipe in the wall panel, the robotic arm controls the pipe gripper to rotate horizontally in both directions. When the pipe gripper rotates, causing the perforated circular steel pipe to rotate in one direction, the outer surface of the perforated circular steel pipe loosens from the bonding surface of the hollow hole concrete in the wall panel, and then the top of the perforated circular steel pipe is tightly gripped. The robotic arm then lifts the pipe vertically upward and pulls it out, then delivers it to the position set inside the reinforcing cage. When it rotates in the opposite direction, the pipe gripper disengages from the perforated circular steel pipe, and then returns to the position for the next pipe pulling operation.

10. The process of a prefabricated hollow wall panel production equipment as described in any one of claims 1-9, characterized in that: The wall panel forming machine uses a frame that is permanently fixed and movable, consisting of a large vertical template and two vertical side templates. When producing the first wall panel, the forming machine is automatically moved to the production position. On the opposite side of the permanently fixed large vertical template, a large vertical template for the other side of the first wall panel is fixed. Then, using an automatic pipe-pulling machine's robotic arm lifting device, the reinforcing cage, along with the pre-inserted and fixed circular steel pipes and the bottom formwork, is lifted and placed close to the other fixed template. One side of the large formwork is adjusted and permanently fixed to the frame, and the two side formworks are then closely fitted together with the large formwork on the other side, which has already been vertically fixed. After the four formworks are assembled, a cavity for pouring concrete is formed. This cavity is automatically fixed mechanically, and simultaneously, the reinforcing cage, already placed inside the formwork, is vertically fixed within the cavity formed by the four formworks. After adjustment and fixing, the pipe-pulling machine automatically moves to the top of the next wall panel forming machine to work in conjunction with it. After the pipe-pulling machine moves away, the concrete pump is started to deliver concrete into the formwork cavity and compact it. After 24 hours, when the concrete reaches the demolding strength, the pipe-pulling machine moves back to the top of the wall panel forming machine, automatically and vertically pulling out several perforated circular steel pipes and automatically delivering them to the reinforcing cage already placed at the pipe loading position on the wall panel forming machine, arranging and fixing them as required. Then, the wall panel is automatically demolded by the wall panel forming machine moving longitudinally. The formed wall panel then remains stationary at the forming station and is cured by conventional watering and covering until it reaches the required age before being loaded and shipped. Once the wall panel forming machine moves longitudinally away from the wall panel and reaches the working space, the production of the next batch of wall panels begins: First, a release film is applied to the surface of the solidified and demolded wall panel. Then, the steel cage with the pre-inserted circular steel pipes, along with the bottom mold, is lifted into the wall panel forming area of ​​the forming machine using a pipe-pulling machine. The wall panel is placed close to the large wall panel with the release film applied. The forming machine is then started to return to its original position, allowing one large panel of the previous wall panel to align with the large template and side molds fixed to the forming machine, thus securing the steel cage within the cavity formed by the large wall panel and the three template surfaces. The pipe-pulling machine then automatically moves to the next wall panel forming machine to work in conjunction with it. The concrete pump is then started to pour and compact the concrete. This process is repeated in a cycle on the wall panel production line, vertically stacking the already formed wall panels in batches according to the process flow.

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