Self-supporting formwork production line for prestressed slab production

Abstract

A self-supporting formwork production line for prestressed slab production. The prestress after the steel bars are tensioned is borne by the side beams between two tensioning pedestals. There is no need to set up an underground pre-buried foundation. The equipment can be flexibly assembled, disassembled and transported. When the enterprise relocates, the equipment can be moved together without purchasing new equipment. The enterprise can conveniently move the prefabricated prestressed slab production equipment to the vicinity of the customer's project for production, which greatly reduces the transportation cost of the prefabricated prestressed slabs. The side beams can also be used as side forms of concrete slabs and walking tracks for production line equipment such as placing machines, bar combing machines, tarpaulin machines, and plate transport machines for component production, which is beneficial to improving the standardization and automation of the equipment and simplifying the equipment structure. There is no need to set up independent concrete molds and placing machine tracks, which is beneficial to reducing the cost of the equipment itself, the difficulty of disassembling and assembling the equipment, and reducing the area occupied by the equipment itself.

Description

Technical Field

[0001] The invention relates to a production equipment for building prefabricated prestressed panels, in particular to a self-supporting formwork production line for producing prestressed panels. Background Art

[0002] In the existing production process of prefabricated prestressed panels for buildings, the steel bars need to be tensioned and prestressed before pouring concrete, and then concrete is poured in the mold so that the tensioned steel bars are buried in the concrete. During the concrete curing process, the tensioning pedestals at both ends of the steel bars need to maintain tension at all times. In order to ensure the tensioning strength, the existing tensioning pedestals need to be equipped with underground pre-buried foundations. When the production equipment is built, the underground foundation of the tensioning pedestals will be buried underground to provide sufficient anchoring force for the tensioning pedestals to prevent the tensioning pedestals from shifting. This has resulted in the existing production equipment for prefabricated prestressed panels for buildings being unable to shift once built. For production companies, once the factory needs to be relocated, the equipment in the original factory cannot be moved, and the equipment in the new factory needs to be purchased and built again, which will undoubtedly cause a substantial increase in the company's equipment costs and bring a heavy burden to the company. Summary of the invention

[0003] The purpose of the present invention is to provide a self-supporting formwork production line for the production of prestressed panels, wherein the steel bar tensioning pedestals at both ends are connected by side beams, and the prestress after the steel bars are tensioned is borne by the side beams between the two tensioning pedestals. There is no need to set up an underground pre-buried foundation, and the equipment can be flexibly assembled, disassembled and transported. When an enterprise relocates, the equipment can be moved together without the need to purchase new equipment.

[0004] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: comprising a first side beam and a second side beam parallel to each other, the first side beam and the second side beam are connected by a plurality of cross beams, legs are installed at the bottom of the first side beam and the second side beam or the cross beam, a platform plate is arranged on the upper side of the cross beam, the platform plate is located in the middle of the height direction of the first side beam and the second side beam, the bottom surface of the platform plate contacts the top surface of the cross beam, the first side beam and the second side beam are respectively installed with a first steel bar tensioning pedestal and a second steel bar tensioning pedestal at both ends, a plurality of transverse first through holes are provided on each cross beam, a circulating water pipe is passed through the first through hole, and each circulating water pipe is connected to a water inlet pipe joint and a water outlet pipe joint. The first side beam and the second side beam both comprise hollow metal pipes, and the metal pipes are filled with cement mortar or concrete. The metal pipe is a rectangular pipe. The first side beam and the second side beam are both formed by connecting multiple side beam assemblies along the length direction. Each side beam assembly includes a hollow metal tube. The two ends of the metal tube are closed by end plates. The cavity formed by the metal tube and the end plate is filled with cement mortar or concrete. A second through hole is provided on one side of the end plate. The second through holes of the mutually connected side beam assemblies and the side beam assemblies and the steel bar tensioning pedestals at both ends of the side beams are connected by bolts. One or more sets of equipment walking tracks are arranged on the top surface of the first side beam and the second side beam. Support frames are installed on the outer sides of the first side beam and the second side beam, wherein a walking platform is arranged on the support frame on one side, and a multi-pole busbar is installed on the support frame on the other side. A heat insulation layer is laid on the ground below the platform plate, and a heat insulation board is arranged between the lower part of the first side beam and the second side beam and the ground, and between the lower part of the first steel bar tensioning pedestal and the second steel bar tensioning pedestal and the ground. A heat reflection layer is arranged on the top surface of the heat insulation layer.

[0005] The advantages of the present invention are as follows: the prestress after the steel bars are tensioned is borne by the side beams between the two tensioning pedestals, and there is no need to set up an underground pre-buried foundation. The equipment can be flexibly assembled, disassembled and transported. When the enterprise relocates, the equipment can be moved together without the need to purchase new equipment. The enterprise can conveniently move the prefabricated prestressed plate production equipment to the vicinity of the customer's project for production, greatly reducing the transportation cost of the prefabricated prestressed plate; the side beams can also be used as the side molds of the concrete slabs and the walking tracks of the production line equipment such as the placing machine, the bar combing machine, the tarpaulin machine, and the plate transport machine for the production of components, which is conducive to improving the standardization and automation of the equipment and simplifying the equipment structure, and there is no need to set up independent concrete molds and placing machine tracks. The road is conducive to reducing the cost of the equipment itself, the difficulty of equipment disassembly and assembly, and reducing the area occupied by the equipment itself; the steel bar tensioning, concrete placement, maintenance and board transportation operations of the prefabricated prestressed slab are all carried out on the formwork production line, creating convenient conditions for the mechanized and automated production of prefabricated prestressed slabs; the side beam can be composed of multiple sections of side beam components, and each side beam component can be standardized and modularized, and the longitudinal extension is convenient and fast; the cement mortar or concrete poured into the side beam can increase the overall structural strength of the side beam, improve the tolerance to prestress, and strengthen the strength of the track foundation of the placing machine; the circulating water pipe is laid in the first through hole on the crossbeam, which flexibly utilizes the space at the bottom of the platform plate. During the maintenance process of concrete prestressed slab production, the poured cement mortar or concrete can simultaneously absorb and store heat during the heating stage, so that the prestressed slab heats up and cools gently during the maintenance process, which has a positive impact on the quality of the prestressed slab. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a schematic diagram of the structure of the present invention;

[0007] Figure 2 Figure 1 A right view structural diagram of ;

[0008] Figure 3 yes Figure 2 The enlarged structural diagram of the middle part I;

[0009] Figure 4 is a schematic structural diagram of the side beam assembly of the present invention;

[0010] Figure 5 It is a schematic diagram of the structure of the present invention in use state. DETAILED DESCRIPTION

[0011] The self-supporting formwork production line for the production of prestressed panels of the present invention comprises a first side beam 1 and a second side beam 2 which are parallel to each other, the first side beam 1 and the second side beam 2 are connected by a plurality of cross beams 3, legs 11 are installed at the bottom of the first side beam 1 and the second side beam 2 or the cross beam 3, a platform plate 4 is arranged on the upper side of the cross beam 3, the platform plate 4 is located in the middle of the height direction of the first side beam 1 and the second side beam 2, the bottom surface of the platform plate 4 contacts the top surface of the cross beam 3, a first steel bar tensioning pedestal 5 and a second steel bar tensioning pedestal 6 are installed at both ends of the first side beam 1 and the second side beam 2, a plurality of transverse first through holes 7 are provided on each cross beam 3, a circulating water pipe 8 is passed through the first through hole 7, and each circulating water pipe 8 is connected to a water inlet pipe joint 9 and a water outlet pipe joint 10. When producing prefabricated prestressed concrete panels, after the steel bars between the first steel bar tensioning pedestal 5 and the second steel bar tensioning pedestal 6 are tensioned, a concrete placing machine places the concrete on the platform plate 4, and the concrete is formed into a concrete slab after being vibrated and smoothed. The platform plate 4 is used as the bottom plate of the concrete slab casting mold, and the first side beam 1 and the second side beam 2 are used as the side molds of the concrete slab casting mold. When the length of the platform plate 4 between the first steel bar tensioning pedestal 5 and the second steel bar tensioning pedestal 6 meets the size requirements for producing multiple concrete slabs, each concrete slab can be separated by an end mold 23. When the concrete slab is cured, the circulating water pipe 8 realizes hot water circulation through the water inlet pipe joint 9 and the water outlet pipe joint 10, and heats the concrete slab on the platform plate 4 above it, shortening the curing time of the concrete slab. After the curing of the mixed soil slab is completed, the prestressed steel bars at both ends of each concrete slab are cut off to obtain a prefabricated prestressed concrete slab. The prestress after the steel bar is tensioned in the present invention is borne by the side beams between the two tensioning pedestals, and there is no need to set up an underground pre-buried foundation. The equipment can be flexibly assembled, disassembled and transported. When the enterprise relocates, the equipment can be moved together without the need to purchase new equipment. The enterprise can conveniently move the prefabricated prestressed slab production equipment to the vicinity of the customer project for production, greatly reducing the transportation cost of the prefabricated prestressed slab. The steel bar tensioning, concrete spreading, curing and slab transportation operations in the production process are all carried out on the formwork production line, creating convenient conditions for the mechanized and automated production of prefabricated prestressed slabs. The circulating water pipe 8 is arranged in the first through hole 7 on the cross beam 3, and the space at the bottom of the platform slab 4 is flexibly utilized. On the one hand, it can ensure that the circulating water pipe 8 is close to the platform slab 4 so that the concrete slab is directly heated. On the other hand, the circulating water pipe 8 is located in the space surrounded by the side beam and the cross beam 3, which is also conducive to reducing heat loss.

[0012] The first side beam 1 and the second side beam 2 of the present invention can be made of various structures such as solid cross beams and hollow cross beams, among which the preferred structure is: the first side beam 1 and the second side beam 2 both include a hollow metal tube 12, and the metal tube 12 is filled with cement mortar or concrete. This structure can increase the overall structural strength of the side beam, and on the basis of ensuring the tolerance to longitudinal prestress, it can also enhance the load-bearing capacity of the side beam, and ensure that the strength of the side beam itself can meet the requirements of being used as a component production line equipment track. During the maintenance process of prefabricated prestressed concrete slab production, the cement mortar or concrete poured into the side beam can also absorb and store heat synchronously during the heating stage, making full use of the heat storage characteristics of the concrete in the rectangular steel tubes on both sides, so that the temperature of the curing and the concrete in the tube rise and fall at the same time, which not only saves energy, but also can make the prestressed slab warm up and cool slowly during the maintenance process, which has a positive impact on the quality of the prestressed slab. The metal tube 12 used in the first side beam 1 and the second side beam 2 can be made of tubes of various shapes, among which rectangular tubes are preferred. Compared with tubes of other shapes, rectangular tubes are easier to transport and easier to install and fix other components in the production equipment.

[0013] The first side beam 1 and the second side beam 2 of the present invention can be formed by connecting multiple side beam assemblies 13 along the length direction. Each side beam assembly 13 includes a hollow metal tube 12. The two ends of the metal tube 12 are closed by end plates 14. The cavity formed by the metal tube 12 and the end plates 14 is filled with cement mortar or concrete. A second through hole 15 is provided on one side of the end plate 14. The second through holes 15 of the mutually connected side beam assemblies 13 and the side beam assemblies 13 and the steel bar tensioning pedestals at both ends of the side beams are connected by bolts 16. In this structure, one side of the end plate 14 can protrude from the metal tube 12 and have a second through hole 15, forming a connecting pedestal connected to the adjacent side beam assembly 13 or the steel bar tensioning pedestal. The adjacent connecting pedestals are connected by bolts 16. Each side beam component of this structure can be standardized and modularized. The length of each side beam assembly 13 can be set according to the length of a conventional transport vehicle to reduce the difficulty of transportation during equipment migration. When arriving at the site for assembly, the longitudinal extension is convenient and quick, the length of the assembled production line can be much longer than the length of a conventional transport vehicle, and the connection position has high connection accuracy, and the docking is firm and reliable, which frees this production line from the limitations of transportation capacity.

[0014] In order to simplify the equipment structure, the present invention can set equipment running tracks 17 on the top surfaces of the first side beam 1 and the second side beam 2. This structure allows the side beams of the present invention to be used as the side molds of the concrete slab and the running tracks of the production line equipment such as the placing machine, the bar combing machine, the tarpaulin machine, and the plate transport machine for component production. It not only bears the prestress between the steel bar tensioning pedestals, but also bears the gravity of the component production equipment. The overall structure of the equipment is effectively simplified, and there is no need to set up independent equipment tracks, which is conducive to reducing the cost of the equipment itself, the difficulty of equipment disassembly and assembly, and reducing the area occupied by the equipment itself. The equipment running track 17 can be a single set of tracks, or two or more sets of parallel tracks, so that each component production equipment can operate independently without affecting each other.

[0015] The present invention can install support frames 18 on the outside of the first side beam 1 and the second side beam 2, wherein a walking platform 19 is provided on the support frame 18 on one side, and a multi-pole busbar 20 is installed on the support frame 18 on the other side. The walking platform 19 can provide a platform for operators to stand and walk, so that operators can perform auxiliary operations on the distribution, compaction, and leveling of concrete and observe the maintenance of concrete slabs. The busbar 20 can supply power to equipment such as a concrete distributor running on the production line, avoid cluttered lines around the production line, and prevent the power supply lines from moving with the equipment and leaving traces on the surface of the concrete slab.

[0016] In order to further improve the heat utilization rate of the concrete slab heating stage, the present invention can lay a heat insulation layer 21 on the ground below the platform plate 4. The heat insulation layer 21 can be made of a variety of well-known heat insulation materials such as polyurethane boards and foam boards to prevent the heat from being absorbed by the ground below the ground platform plate 4. In order to further improve the heat utilization rate of the concrete slab heating stage, the present invention can also set a heat reflection layer 22 on the top surface of the heat insulation layer 21. The heat reflection layer 22 cooperates with the heat insulation layer 21, and its heat insulation capacity can be significantly improved, and it helps to reflect heat to the platform plate 4 above, further improving the maintenance efficiency of the concrete slab.

[0017] In order to reduce the requirement for the flatness of the ground, the present invention can install legs 11 at the bottom of the first side beam 1 and the second side beam 2, and set insulation boards 24 between the lower part of the first side beam 1 and the second side beam 2 and the ground, and between the lower part of the first steel bar tensioning pedestal 5 and the second steel bar tensioning pedestal 6 and the ground. The insulation board 24 can be made of various well-known insulation boards such as foam board and synthetic resin board to prevent heat from being lost to the surroundings.

Claims

1. Self-supporting formwork production line for prestressed slab production, characterized by: The invention comprises a first side beam (1) and a second side beam (2) which are parallel to each other. The first side beam (1) and the second side beam (2) are connected by a plurality of cross beams (3). A platform plate (4) is arranged on the upper side of the cross beam (3). The platform plate (4) is located in the middle of the first side beam (1) and the second side beam (2) in the height direction. The bottom surface of the platform plate (4) contacts the top surface of the cross beam (3). A first steel bar tensioning pedestal (5) and a second steel bar tensioning pedestal (6) are respectively installed at both ends of the first side beam (1) and the second side beam (2). A plurality of transverse first through holes (7) are arranged on each cross beam (3). A circulating water pipe (8) is passed through the first through holes (7). Each circulating water pipe (8) is connected to a water inlet pipe joint (9) and a water outlet pipe joint (10).

2. The self-supporting formwork production line for prestressed slab production according to claim 1 is characterized in that: The first side beam (1) and the second side beam (2) both comprise a hollow metal tube (12), and the metal tube (12) is filled with cement mortar or concrete.

3. The self-supporting formwork production line for prestressed slab production according to claim 2 is characterized in that: The metal tube (12) is a rectangular tube.

4. The self-supporting formwork production line for prestressed slab production according to claim 2 is characterized in that: The first side beam (1) and the second side beam (2) are each formed by a plurality of side beam assemblies (13) butted together along the length direction, each side beam assembly (13) comprising a hollow metal tube (12), both ends of the metal tube (12) being closed by end plates (14), the interior of the cavity formed by the metal tube (12) and the end plates (14) being filled with cement mortar or concrete, a second through hole (15) being provided on one side of the end plates (14), and the second through holes (15) of the butted side beam assemblies (13) and the side beam assemblies (13) and the steel bar tensioning pedestals at both ends of the side beams being connected by bolts (16).

5. The self-supporting formwork production line for prestressed slab production according to any one of claims 1, 2 or 4, characterized in that: One or more sets of equipment running tracks (17) are arranged on the top surfaces of the first side beam (1) and the second side beam (2).

6. The self-supporting formwork production line for prestressed slab production according to any one of claims 1, 2 or 4, characterized in that: Support frames (18) are installed on the outside of the first side beam (1) and the second side beam (2), wherein a walking platform (19) is provided on the support frame (18) on one side, and a multi-pole busbar (20) is installed on the support frame (18) on the other side.

7. The self-supporting formwork production line for prestressed slab production according to claim 1 is characterized in that: A heat insulation layer (21) is laid on the ground below the platform plate (4).

8. The self-supporting formwork production line for prestressed slab production according to claim 7, characterized in that: A heat reflection layer (22) is provided on the top surface of the heat insulation layer (21).

9. The self-supporting formwork production line for prestressed slab production according to claim 1, characterized in that: Support legs (11) are installed at the bottom of the first side beam (1) and the second side beam (2), and insulation boards (24) are provided between the lower parts of the first side beam (1) and the second side beam (2) and the ground, and between the lower parts of the first steel bar tensioning pedestal (5) and the second steel bar tensioning pedestal (6) and the ground.

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