PK prestressed plate producing and processing device

Abstract

The invention discloses a PK prestressed plate producing and processing device which comprises a fixed base, a fixed support and formwork assemblies, the fixed support is arranged on the fixed base, the formwork assemblies are arranged on the two sides of the fixed support respectively, and each formwork assembly comprises a bottom plate, a fixed side plate, a movable side plate and a partition plate. The bottom plate and the fixed side plate are both arranged on the fixed base, the fixed side plate and the movable side plate are oppositely arranged in parallel, the fixed side plate is attached to one side of the bottom plate, the movable side plate is arranged on the bottom plate, and a telescopic piece is arranged on the fixed support and used for driving the movable side plate to slide on the bottom plate so as to change the distance between the movable side plate and the fixed side plate. The multiple partition plates are arranged between the fixed side plate and the movable side plate, the partition plates are arranged on the bottom plate, and the partition plates are in sliding connection with the fixed side plate and the movable side plate so that the distance between the adjacent partition plates can be adjusted. The device is simple in structure, low in cost and capable of meeting production and machining of PK prestressed plates of different specifications.

Description

Technical Field

[0001] This invention relates to the field of composite slab technology, and more specifically to a PK prestressed slab production and processing apparatus. Background Technology

[0002] PK prestressed slabs are characterized by their light weight, high rigidity, high load-bearing capacity, and good crack resistance. They eliminate the need for formwork during construction, effectively saving on timber formwork and supports, shortening the construction period, and reducing costs. Therefore, they are widely used in the engineering and construction industry. Currently, PK prestressed slab processing is divided into factory prefabrication and on-site prefabrication. Factory prefabrication sometimes uses dedicated automated prefabrication production lines, but such specialized equipment is usually expensive, and the prefabricated slabs still need to be transported to the construction site by vehicle, leading to an increase in the overall cost of the product.

[0003] On-site prefabrication refers to a production model where prefabricated molds are placed on a flat floor, steel bars are placed inside the molds, and finally, concrete is poured in and the product is cured. This prefabrication method is easily affected by the construction site environment, resulting in slow production speed and low efficiency. Furthermore, the quality of the prefabricated product cannot be guaranteed, and it is also not conducive to use and installation. For example, on-site modifications are sometimes required during installation, reducing construction efficiency.

[0004] Meanwhile, during the prefabrication process, at least one set of molds is required for PK prestressed slabs of different sizes and specifications. However, considering production efficiency, in actual production, multiple sets of molds are usually required for one size and specification of PK prestressed slab to meet the needs of turnover. Since PK prestressed slabs may have multiple design specifications, but various prefabrication molds cannot be shared, there are many molds stacked on the production site, occupying a large amount of space, and the mold cost is high. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in the current production process of PK prestressed slabs by providing a PK prestressed slab production and processing device. This device has a simple structure and low cost, enabling efficient production of PK prestressed slabs on construction sites. The quality of the precast products meets the requirements, and it can also process PK prestressed slabs of different specifications. This reduces the number of precast molds and significantly lowers the cost of precast molds.

[0006] This invention is achieved through the following technical solution: This invention provides a PK prestressed slab production and processing device, including a fixed base, a fixed support, and a template assembly. The fixed support is disposed on the upper surface of the fixed base, and the template assembly is disposed on both sides of the fixed support. The template assembly includes a base plate, a fixed side plate, a movable side plate, and partitions. The base plate and the fixed side plate are both disposed on the upper surface of the fixed base. The fixed side plate and the movable side plate are arranged parallel to each other and are attached to one side of the base plate. The movable side plate is disposed on the upper surface of the base plate. The fixed support is provided with a telescopic member, which is connected to the movable side plate and is used to drive the movable side plate to slide on the base plate to change the distance between it and the fixed side plate. Multiple partitions are arranged at intervals in the same direction between the fixed side plate and the movable side plate. The partitions are vertically disposed on the upper surface of the base plate and form a sliding connection with the fixed side plate and the movable side plate to adjust the distance between adjacent partitions.

[0007] As a feasible solution of the present invention, the fixed side plate and the movable side plate are each provided with a mounting block on their opposite sides. The mounting block can slide along the length direction of the fixed side plate and the movable side plate. The lower part of the mounting block is provided with a vertical slot, and the end of the partition plate can be inserted and removed into the slot.

[0008] As a feasible solution of the present invention, the fixed side plate and the movable side plate are provided with sliding grooves along the length direction on opposite sides, the mounting block is provided with a limiting block adapted to the sliding groove, and the mounting block is also provided with a locking member for locking the position.

[0009] As a feasible solution of the present invention, the width of the mounting block is the same as the thickness of the partition, and the two ends of the partition are provided with plug-in portions. The thickness of the plug-in portions is less than the thickness of the partition, and the thickness of the plug-in portions is adapted to the slot.

[0010] As a feasible solution of the present invention, a tensioning platform is provided on the fixed base, the tensioning platform is located at both ends of the fixed support, and a tensioning device is provided on the tensioning platform, the tensioning device being used to apply prestress to the steel strand.

[0011] As a feasible solution of the present invention, a transverse frame is provided across the two tensioning platforms, a track is provided on the tensioning platforms along the length direction, and a traveling wheel is provided at both ends of the transverse frame, the traveling wheel can travel along the track.

[0012] As a feasible solution of the present invention, it also includes a spraying component for spraying fluid. The spraying component includes three pipes arranged side by side, and multiple nozzles are arranged at intervals along the length of the pipes. The nozzles on the three pipes are respectively used to spray air, water and release agent onto the base plate.

[0013] As a feasible solution of the present invention, it also includes a shielding component for shielding protection. The shielding component includes two rotating shafts arranged side by side, and a shielding cloth is wound on the rotating shafts. When the shielding cloth is unrolled, it can shield the area above the base plate.

[0014] As a feasible solution of the present invention, it further includes a vibration component for generating vibration force on the base plate. The vibration component includes a plurality of vibrators disposed on the underside of the base plate. The vibrators are arranged at intervals along the length direction of the base plate and are located in the recess of the fixed base.

[0015] As a feasible solution of the present invention, it further includes a heating component for heating the base plate. The heating component includes a plurality of heating rods disposed on the underside of the base plate. The heating rods are disposed in slots in the base plate, and each heating rod is connected to a power supply device.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. This invention provides two independent prefabrication stations on the fixed base by setting template assemblies on both sides of the fixed support. The template assembly includes a base plate, a fixed side plate, a movable side plate, and multiple partitions. Any two adjacent partitions, the base plate, the fixed side plate, and the movable side plate enclose a prefabrication cavity. Since the spacing between the partitions and the spacing between the movable and fixed side plates can be adjusted, the size of the prefabrication cavity is adjustable. As long as the prefabricated slabs have a consistent width on each side, they can be produced in the same batch. This processing device has a simple structure and low cost, enabling efficient production of PK prestressed slabs on the construction site. The quality of the prefabricated products meets the requirements, and it can also process PK prestressed slabs of different specifications. This reduces the number of prefabrication molds and significantly lowers the cost of prefabrication molds.

[0017] 2. This invention, by setting up a tensioning platform and cooperating with tensioning equipment, enables better control of prestressing tension of steel strands during the prefabrication of PK prestressed slabs on the construction site. Simultaneously, by setting up a spraying component, air, water, and release agent can be sprayed onto the base slab, achieving base slab cleaning, release agent spraying, and water curing of the precast slab. A shielding component can shield the area above the base slab after the shielding cloth is removed, providing protection for the cast precast slab. Furthermore, a vibration component can create a vibration chamber for the concrete, and a heating component can provide heating and insulation at low temperatures. These measures all contribute to ensuring the product quality of the PK prestressed slab, especially under open-air conditions at the construction site. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings: Figure 1 This is a top view schematic diagram of the PK prestressed slab production and processing device in this invention; Figure 2 This is a front view schematic diagram of the PK prestressed slab production and processing device in this invention; Figure 3 This is a schematic diagram of the transverse structure and installation of the transverse sliding frame in this invention; Figure 4 This is a longitudinal overall schematic diagram of the transverse sliding frame in this invention; Figure 5 This is a cross-sectional schematic diagram of the PK prestressed slab production and processing device in this invention. Figure 6 This is a bottom view of the base plate in this invention; Figure 7 This is a front view schematic diagram of the connection between the partition and the fixed side plate and the movable side plate in this invention; Figure 8 This is a top view schematic diagram showing the connection between the partition and the fixed side plate and the movable side plate in this invention.

[0019] The attached diagram shows the markings and corresponding component names: 1-Fixed base, 2-Fixed support, 3-Base plate, 31-Rubber pad, 4-Fixed side plate, 5-Modible side plate, 6-Partition, 61-Insertion part, 62-Wire hole, 7-Telescopic component, 8-Mounting block, 81-Slot, 82-Limiting block, 83-Locking component, 9-Tensioning platform, 91-Railway, 10-Tensioning equipment, 11-Transverse frame, 110-Walking wheel, 12-First pipe, 13-Second pipe, 14-Third pipe, 15-Rotating shaft, 151-Shielding cloth, 16-Vibrator, 17-Heating rod, A-Precast mold cavity. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0022] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A exists, A and B exist simultaneously, and B exists. In addition, the character " / " in this document generally indicates that the related objects before and after it have an "or" relationship.

[0025] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0026] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces), unless otherwise explicitly specified.

[0027] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0028] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0029] Please refer to Figures 1 to 8 This application provides a PK prestressed slab production and processing device, including a fixed base 1, a fixed support 2, and a template assembly. The fixed support 2 is disposed on the upper surface of the fixed base 1, and the template assembly is disposed on both sides of the fixed support 2. The template assembly includes a base plate 3, a fixed side plate 4, a movable side plate 5, and a partition 6. The base plate 3 and the fixed side plate 4 are both disposed on the upper surface of the fixed base 1. The fixed side plate 4 and the movable side plate 5 are arranged parallel to each other and are attached to one side of the base plate 3. The movable side plate 5 is disposed on the upper surface of the base plate 3. The fixed support 2 is provided with a telescopic member 7, which is connected to the movable side plate 5 and is used to drive the movable side plate 5 to slide on the base plate 3 to change the distance between it and the fixed side plate 4. Multiple partitions 6 are arranged at intervals in the same direction between the fixed side plate 4 and the movable side plate 5. The partitions 6 are vertically disposed on the upper surface of the base plate 3 and form a sliding connection with the fixed side plate 4 and the movable side plate 5 to adjust the distance between adjacent partitions 6.

[0030] Both the fixed base 1 and the fixed support 2 in this application can be made of cast concrete. The fixed base 1 is rectangular in shape and has a certain thickness, with a length of 50-100 meters or even longer. The fixed support 2 extends along the length of the fixed base 1 and is arranged on the upper surface, and the cross-section of the fixed support 2 can be rectangular. The fixed support 2 and the fixed base 1 are rigidly connected. The base plate 3, fixed side plate 4, movable side plate 5, and partition 6 in this application are all rectangular plate structures, preferably made of steel plate.

[0031] In this application, the base plate 3 is laid flat on the fixed base 1. The side of the fixed side plate 4 facing the movable side plate 5 is attached to the side of the base plate 3. The movable side plate 5 is arranged parallel to the fixed side plate 4 and is perpendicular to the base plate 3. Multiple partitions 6 are arranged at intervals between the fixed side plate 4 and the movable side plate 5 along the length of the base plate 3. The rectangular cavity formed by the base plate 3, the fixed side plate 4, and the movable side plate 5 can be divided into multiple prefabricated mold cavities A by the multiple partitions 6, so as to realize the mass production of prefabricated panels.

[0032] It should be noted that only four precast mold cavities A are shown on both sides of the fixed support 2 in the attached drawings of this application. However, it can be understood that as the number of partitions 6 increases, more precast mold cavities A can be separated. Therefore, multiple precast slabs can actually be produced in the same batch, thereby improving the production efficiency of PK prestressed slabs.

[0033] The aforementioned telescopic component 7 can be any of a hydraulic cylinder, pneumatic cylinder, or electric cylinder. The number of telescopic components 7 can be reasonably arranged according to the length and weight of the movable side plate 5. One end of the telescopic component 7 is installed on the fixed support 2, and the other end (output end) is connected to the movable side plate 5. Of course, other structures can also be used to push and pull the movable side plate 5, allowing it to slide on the base plate 3 to change the distance between it and the fixed side plate 4.

[0034] This application provides two independent prefabrication stations on the fixed base 1 by setting template assemblies on both sides of the fixed support 2. The template assembly includes a base plate 3, a fixed side plate 4, a movable side plate 5, and multiple partitions 6. Any two adjacent partitions 6 can be enclosed with the base plate 3, the fixed side plate 4, and the movable side plate 5 to form a prefabrication cavity A. Since the partitions 6 are slidably connected to the fixed side plate 4 and the movable side plate 5, the spacing between the partitions 6 can be adjusted. At the same time, the spacing between the movable side plate 5 and the fixed side plate 4 can also be adjusted by the telescopic component 7, so that the size of the prefabrication cavity A is adjustable. As long as the prefabricated plate meets the requirement of consistent width on one side, they can be produced in the same batch.

[0035] Compared with automated precast production lines, the processing device in this application has a simple overall structure and low cost. It can be directly assembled on the construction site, thereby achieving efficient production of PK prestressed slabs on the construction site, eliminating the need for long-distance transportation of precast slabs, and ensuring that the quality of the precast products meets the requirements. At the same time, it can meet the production and processing of PK prestressed slabs of different specifications, reducing the number of precast mold specifications and greatly reducing the cost of precast molds.

[0036] It should be noted that after adjusting the distance between the movable side plate 5 and the fixed side plate 4 by means of the telescopic component 7, it is only necessary to select a partition 6 of the corresponding width to connect between the movable side plate 5 and the fixed side plate 4, and then adjust the position of the adjacent partition 6 according to the size of the precast slab in the other direction.

[0037] According to some embodiments of this application, the fixed side plate 4 and the movable side plate 5 are each provided with a mounting block 8 on their opposite sides. The mounting block 8 can slide along the length direction of the fixed side plate 4 and the movable side plate 5. The lower part of the mounting block 8 is provided with a vertical slot 81, and the end of the partition plate 6 can be inserted and removed into the slot 81.

[0038] By sliding mounting blocks 8 on opposite sides of the fixed side plate 4 and the movable side plate 5, and by setting slots 81 on the mounting blocks 8, and connecting the slots 81 to both ends of the partition 6, the position of the partition 6 can be adjusted by sliding the mounting blocks 8 along the length direction of the fixed side plate 4 and the movable side plate 5. At the same time, the partition 6 and the mounting blocks 8 can be quickly connected and separated, which facilitates the quick replacement of the partition 6 of the corresponding width when the movable side plate 5 is adjusted.

[0039] The lower end face of the mounting block 8 is in contact with the base plate 3. The side of the mounting block 8 facing away from the slot 81 is in contact with the inner wall of the fixed side plate 4 and the movable side plate 5. At the same time, after the slots 81 are inserted into both ends of the partition plate 6, the mounting block 8 will be further pushed to fit tightly with the inner wall of the fixed side plate 4 and the movable side plate 5, thereby avoiding grout leakage from this point during pouring.

[0040] According to some embodiments of this application, the fixed side plate 4 and the movable side plate 5 are both provided with sliding grooves along the length direction on opposite sides, the mounting block 8 is provided with a limiting block 82 adapted to the sliding groove, and the mounting block 8 is also provided with a locking member 83 for locking the position.

[0041] By setting a limit block 82 to cooperate with the slide groove, the movement of the partition 6 can be guided. At the same time, a locking element 83 is set on the top of the mounting block 8. The locking element 83 can be a screw. After the partition 6 is moved to the correct position, the screw can be screwed in to make it press against the top of the fixed side plate 4 and the movable side plate 5, thereby locking the position of the mounting block 8.

[0042] The aforementioned limiting block 82 can be a rectangular block, a T-shaped block, a dovetail block, or other similar shapes. The limiting block 82 can be fixedly connected to the mounting block 8 by bolts. Alternatively, the locking element 83 can be located on the side of the mounting block 8 with the slot 81, and the locking element 83 can be tightened against the opposite sides of the fixed side plate 4 and the movable side plate 5.

[0043] According to some embodiments of this application, the width of the mounting block 8 is the same as the thickness of the partition 6, and the partition 6 has insertion portions 61 at both ends. The thickness of the insertion portions 61 is less than the thickness of the partition 6, and the thickness of the insertion portions 61 is adapted to the slot 81. With this structural design, after the partition 6 and the mounting block 8 are connected, the mounting block 8 is flush with the side of the partition 6, thereby avoiding the formation of steps on the side of the precast panel after molding.

[0044] According to some embodiments of this application, a tensioning platform 9 is provided on the fixed base 1, and the tensioning platform 9 is located at both ends of the fixed support 2. A tensioning device 10 is provided on the tensioning platform 9, and the tensioning device 10 is used to apply prestress to the steel strands. By setting the tensioning platform 9 and cooperating with the fixedly installed tensioning device 10, better control of the prestressing tension of the steel strands can be achieved when prefabricating PK prestressed slabs on the construction site.

[0045] The aforementioned tensioning platform 9 extends along the width of the fixed base 1, forming an I-shaped structure with the fixed support 2. The cross-section of the tensioning platform 9 is rectangular and can be cast from concrete. A tensioning device 10 is installed on the tensioning platform 9, which can be anchored to the tensioning platform 9 after the steel strand is tensioned.

[0046] It should be noted that the aforementioned tensioning device 10 can be a through-hole jack. In this application, after the positions of the movable side plate 5 and the multiple partitions 6 are adjusted, the steel strand is inserted through one end of the tensioning platform 9, then through the threading holes 62 provided on each partition 6, and then out through the other end of the tensioning platform 9. This scheme adopts a pre-tensioning method to tension the steel strand as a whole, then pour concrete, and after it has cured, release the tension of the steel strand, and then cut the steel strand to form multiple precast slabs.

[0047] According to some embodiments of this application, a transverse transfer frame 11 is provided across the two tensioning platforms 9. A track 91 is provided on the tensioning platform 9 along its length. The transverse transfer frame 11 is provided with wheels 110 at both ends, and the wheels 110 can travel along the track 91. The transverse transfer frame 11 can travel along the length of the tensioning platform 9 by using the wheels 110 and the track 91. That is, the transverse transfer frame 11 can travel above the two prefabrication positions of the fixed base 1 to perform certain operations on the base plate 3 area (such as spraying air, water and release agent, and shielding).

[0048] It should be noted that the movement of the aforementioned transverse frame 11 can be carried out manually or automatically, such as by manually pushing the transverse frame 11 along the track 91, or by using a motor to drive the walking wheels 110 to rotate.

[0049] According to some embodiments of this application, the PK prestressed slab production and processing device further includes a spraying component for spraying fluid. The spraying component includes three pipes arranged side by side, and multiple nozzles are spaced apart along the length of the pipes. The nozzles on the three pipes are respectively used to spray air, water and release agent onto the base plate 3.

[0050] The aforementioned spraying components can be mounted on the transverse frame 11 so that they can move with the transverse frame 11. Specifically, the three pipes are the first pipe 12, the second pipe 13, and the third pipe 14, which are arranged side by side on the lower side of the transverse frame 11. The spraying direction of the nozzle on each pipe is towards the upper surface of the base plate 3, and the nozzle can adopt a conical spraying method.

[0051] The first pipe 12, the second pipe 13, and the third pipe 14 are used to spray air, water, and a release agent onto the base slab 3, respectively. Before precasting begins, air can be sprayed onto the base slab 3 through the nozzle of the first pipe 12 to clean away any residue using a high-speed airflow. After cleaning the base slab 3, the release agent can be sprayed onto it through the nozzle of the third pipe 14 to facilitate the subsequent demolding of the precast slab. After the concrete is poured, water can be sprayed through the nozzle of the second pipe 13 to cure the concrete.

[0052] According to some embodiments of this application, the PK prestressed slab production and processing device further includes a shielding component for shielding protection. The shielding component includes two rotating shafts 15 arranged side by side, and a shielding cloth 151 is wound on the rotating shafts 15. After the shielding cloth 151 is pulled open, it can shield the area above the base plate 3.

[0053] The aforementioned shielding components can be installed on the transverse frame 11. When it is necessary to shield and protect the poured concrete, the transverse frame 11 can be stopped above the fixed support 2, and then the shielding cloth 151 wound on the two rotating shafts 15 can be pulled open to both sides to shield the area above the base plate 3, which can protect the poured precast slab. This is especially useful when it rains immediately after the concrete is poured. Of course, it can also be used in extremely cold or hot weather, which helps to reduce the impact of weather conditions on the quality of the precast slab.

[0054] It should be noted that the aforementioned shielding cloth 151 can be pulled out manually by unwinding. After use, the shielding cloth 151 can be rewound onto the rotating shaft 15 by manually rotating it. Of course, the shielding cloth 151 can also be wound up by slowly rotating the rotating shaft 15 with a motor.

[0055] According to some embodiments of this application, the PK prestressed slab production and processing apparatus further includes a vibrating component for generating vibration force on the base slab 3. The vibrating component includes a plurality of vibrators 16 disposed on the lower side of the base slab 3. The vibrators 16 are spaced apart along the length of the base slab 3 and located in the recess of the fixed base 1. By providing a vibrating component on the lower side of the base slab 3, the base slab 3 is made to vibrate using the vibrating component, thereby creating a vibration chamber for the concrete and improving the quality of the precast slab.

[0056] It should be noted that the vibrator 16 mentioned above can be an attached vibrator 16, arranged in the recess of the fixed base 1. Its working state is controlled by the pre-reserved pipes in the fixed base 1. In order to avoid the vibrator 16 generating too much noise when it is working, multiple rubber pads 31 are evenly arranged on the lower side of the base plate 3. The rubber pads 31 contact the upper surface of the fixed base 1 to reduce noise. At the same time, a rubber layer can be vulcanized on the lower end surface of the movable side plate 5, the mounting block 8 and the partition plate 6. This rubber layer is used to further reduce the noise generated when the base plate 3 vibrates.

[0057] According to some embodiments of this application, the PK prestressed slab production and processing device further includes a heating component for heating the base slab 3. The heating component includes multiple heating rods 17 disposed on the underside of the base slab 3. The heating rods 17 are disposed in slots in the base slab 3, and each heating rod 17 is connected to a power supply. By setting up the heating component, the base slab 3 can be heated and kept warm at low temperatures, thereby preventing cracking of the poured concrete. Especially in the open-air environment of the construction site, when extremely cold weather occurs, the poured concrete slab may crack, affecting product quality.

[0058] When using the processing device in this application, the position of the movable side plate 5 is adjusted by the telescopic component 7, and a partition plate 6 of appropriate width is selected to connect between the fixed side plate 4 and the movable side plate 5, and the spacing of each partition plate 6 is adjusted. Before starting the prefabrication work, air is sprayed onto the base plate 3 through the nozzle of the first pipe 12, and the residue on the base plate 3 is cleaned by using high-speed airflow. After the base plate 3 is cleaned, a release agent is sprayed onto the base plate 3 through the nozzle of the third pipe 14 to facilitate the demolding operation of the precast slab later. Then, the steel strand is inserted into the tensioning platform 9 at one end, then passes through the wire-passing holes 62 provided on each partition plate 6, and then exits from the tensioning platform 9 at the other end, and transverse reinforcing bars are set in each precast mold cavity A. Tensioning equipment 10 is used to tension the steel strands. After tensioning and anchoring, an external mobile concrete placing vehicle can be used to pour concrete. During pouring, vibrator 16 is activated for vibration. After pouring, clean water is sprayed through the nozzle of the second pipe 13 for curing. After reaching the required strength, the steel strands are released and then cut to form multiple precast slabs. Simultaneously, during the pouring and curing process, depending on the weather conditions at the construction site, a shielding cloth 151 can be used to cover the area above the base slab 3, and a heating rod 17 can be used to heat the base slab 3 to ensure the product quality of the PK prestressed slab.

[0059] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A PK prestressed slab production and processing device, characterized in that, The utility model provides a formwork assembly, which comprises a fixed base, a fixed support arranged on the upper surface of the fixed base, and a formwork assembly arranged on both sides of the fixed support, wherein the formwork assembly comprises a bottom plate, a fixed side plate, a movable side plate and a partition plate, the bottom plate and the fixed side plate are arranged on the upper surface of the fixed base, the fixed side plate and the movable side plate are arranged in parallel, the fixed side plate is attached to one side of the bottom plate, the movable side plate is arranged on the upper surface of the bottom plate, the fixed support is provided with an expansion joint, the expansion joint is connected with the movable side plate and is used to drive the movable side plate to slide on the bottom plate so as to change the distance from the fixed side plate, the partition plate is arranged between the fixed side plate and the movable side plate in the same direction and is spaced apart, the partition plate is arranged vertically on the upper surface of the bottom plate and is connected with the fixed side plate and the movable side plate in a sliding mode so as to adjust the distance between adjacent partition plates.

2. The PK prestressed slab production processing device according to claim 1, characterized in that, The fixed side plate and the movable side plate are provided with mounting blocks on opposite sides, the mounting blocks can slide along the length direction of the fixed side plate and the movable side plate, the lower part of the mounting block is provided with a vertical slot, and the end of the partition plate can be inserted into the slot.

3. The PK prestressed slab production processing device according to claim 2, characterized in that, The fixed side plate and the movable side plate are provided with sliding grooves on opposite sides along the length direction, the mounting block is provided with a limiting block matched with the sliding groove, and the mounting block is further provided with a locking member used to lock the position.

4. The PK prestressed slab production processing device according to claim 2, characterized in that, The width of the mounting block is the same as the thickness of the partition plate, the two ends of the partition plate are provided with insertion parts, the thickness of the insertion part is smaller than the thickness of the partition plate, and the thickness of the insertion part is matched with the slot.

5. The PK prestressed slab production processing device according to claim 1, characterized in that, The fixed base is provided with tensioning pedestals, the tensioning pedestals are arranged at the two ends of the fixed support respectively, the tensioning pedestals are provided with tensioning devices, and the tensioning devices are used to apply prestress to the steel strand.

6. The PK prestressed slab production processing device according to claim 5, characterized in that, A horizontal moving frame is arranged between the two tensioning pedestals, the tensioning pedestals are provided with rails along the length direction, and the horizontal moving frame is provided with walking wheels at the two ends, which can walk along the rails.

7. The PK prestressed slab production processing device according to claim 1, characterized in that, The utility model further comprises a spraying component used to spray fluid, the spraying component comprises three pipes arranged side by side, a plurality of nozzles are arranged on the pipes along the length direction, and the nozzles on the three pipes are used to spray air, clean water and release agent to the bottom plate respectively.

8. The PK prestressed slab production processing device according to claim 1, characterized in that, The utility model further comprises a shielding component used to shield and protect, the shielding component comprises two rotating shafts arranged side by side, shielding cloth is wound on the rotating shafts, and the shielding cloth can shield the area above the bottom plate after being pulled open.

9. The PK prestressed slab production processing device according to claim 1, characterized in that, The utility model further comprises a vibration component used to generate vibration force on the bottom plate, the vibration component comprises a plurality of vibrators arranged on the lower side of the bottom plate, the vibrators are arranged in the recesses of the fixed base along the length direction of the bottom plate.

10. The PK prestressed slab production processing device according to claim 1, characterized in that, The utility model further comprises a heating component used to heat the bottom plate, the heating component comprises a plurality of heating rods arranged on the lower side of the bottom plate, the heating rods are arranged in the slots of the bottom plate, and each heating rod is connected with a power supply device.

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