Concrete precast beam formwork device

Abstract

The utility model discloses a concrete precast beam formwork device which comprises a formwork platform, a walking mechanism is arranged on the lower portion of the formwork platform, side formwork assemblies are arranged on the two sides of the upper portion of the formwork platform, and a demolding mechanism is arranged between the side formwork assemblies and the formwork platform to drive the side formwork assemblies to open or close a mold on the formwork platform. The walking mechanism is arranged below the formwork platform, the side formwork assemblies are arranged on the two sides of the upper portion of the formwork platform, and the demolding mechanism is arranged between the side formwork assemblies and the formwork platform, so that the side formwork assemblies can be subjected to mold opening or mold closing on the formwork platform; the demolding mechanism drives the side formwork assembly to directly demold on the formwork platform, the formwork does not need to be transferred to a special demolding station to be demolded, the structure is simple, use is convenient, construction steps are reduced, and the site needed by precast beam production is saved.

Description

Technical Field

[0001] The utility model relates to production equipment for precast concrete beams, in particular to a precast concrete beam template device. Background Art

[0002] Most of the existing beam prefabrication production lines include: steel cage binding area, casting area, steaming area, tensioning area, beam storage area and corresponding transfer equipment. The construction process is generally to build the formwork first (including the assembly, cleaning and application of release agent of the formwork), complete the steel cage binding in the steel cage binding area through the steel cage frame, and then hoist the steel cage to the casting area to complete the steel cage into the mold. After pouring concrete in the casting area and vibrating it to make it dense, wait for the concrete to initially set. The initial setting time is generally about 1 to 3 hours or even longer. After the initial setting is completed, the side formwork on both sides of the formwork is demolded, and the side formwork remains in place. The bottom formwork and the bottom formwork trolley transfer the beam body to the steaming area for steaming. After steaming, it is transferred to the tensioning area for tensioning. After tensioning, it is transferred to the beam storage area for storage, completing a production cycle. After the side formwork that remains in place is debugged and put into place with the new bottom formwork, the next production cycle begins. The defects of this existing technical solution are:

[0003] 1) After the initial setting, the beam is not completely solidified. Moving at this time can easily cause deformation of the beam or produce fine cracks, which is not conducive to ensuring the quality of the beam. During the initial setting process in winter, there is no insulation measure or it is difficult to achieve the insulation effect. The temperature difference between the inside and outside of the beam is large, which is easy to cause defects. The initial setting process also prolongs the production time and reduces production efficiency; 2) Due to the long initial setting time, in order to ensure that the production rhythm of each area matches each other, the casting area needs to set up multiple sets of formwork and material distribution devices, which increases the equipment cost; 3) In each production cycle, the side mold and the bottom mold need to be re-matched and debugged, which increases the workload and affects the production efficiency.

[0004] In order to solve the above problems, the applicant proposed a technical solution that immediately after pouring, the whole set of formwork and concrete beams are transferred to the steaming area for steaming, and the formwork is demolded after reaching the demoulding strength and then steaming is continued. After steaming, the tensioning and demoulding beam lifting processes are carried out. The solidification of the concrete beam is accelerated by steaming, which saves the time required for the production of precast beams, improves production efficiency, avoids the risk of beam defects due to low temperature, and the concrete beam is moved after forming, which will not cause deformation of the beam body and will not affect the final strength and other performance indicators of the precast beam. The existing bottom mold trolley cannot be used because it does not have the function of demolding the side mold after steaming. If the whole set of formwork and concrete beams are returned to the pouring area for side mold demoulding after steaming, the production rhythm of the production line will be disrupted and production efficiency will be reduced. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a concrete prefabricated beam formwork device which has a simple structure, is easy to use and can realize side form demoulding.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A precast concrete beam formwork device comprises a formwork platform, wherein a walking mechanism is provided at the lower part of the formwork platform and side formwork assemblies are provided at both sides of the upper part, and a demoulding mechanism is provided between the side formwork assembly and the formwork platform to drive the side formwork assembly to open or close the formwork on the formwork platform.

[0008] As a further improvement of the above technical solution: the side form assembly includes a side form template and a side form back frame located on the outside of the side form template, the demolding mechanism includes a plurality of side form demolding drivers and template demolding drivers distributed along the length direction of the template platform, the fixed end of the side form demolding driver is connected to the template platform, the movable end of the side form demolding driver is connected to the lower part of the side form template, the fixed end of the template demolding driver is connected to the upper part of the side form back frame, and the movable end of the template demolding driver is used to push against the precast beam to separate the side form template from the precast beam.

[0009] As a further improvement of the above technical solution: the demoulding mechanism also includes a plurality of slides and slide rails distributed along the length direction of the template platform, the slide is connected to the side template back frame, the slide rail is fixedly connected to the template platform, and the slide moves relative to the slide rail along the width direction of the template platform.

[0010] As a further improvement of the above technical solution: an elastic member is provided between the side mold back frame and the slide seat.

[0011] As a further improvement of the above technical solution: the side mold demoulding drive component and the template demoulding drive component are oil cylinders, air cylinders or electric telescopic rods.

[0012] As a further improvement of the above technical solution: a working platform is provided on the side of the side form back frame away from the side form template, and a guardrail is provided on the working platform.

[0013] As a further improvement of the above technical solution: a bottom mold assembly is provided between the side mold assemblies on both sides, and end mold assemblies are provided at both ends of the bottom mold assembly.

[0014] As a further improvement of the above technical solution: the upper parts of the side mold assemblies on both sides are connected by upper pull rods and the lower parts are connected by lower pull rods, the height of the upper pull rods is greater than the height of the end mold assembly, and the lower pull rods penetrate the bottom mold assembly.

[0015] As a further improvement of the above technical solution: a plurality of end mold connecting rods are provided at the end of the side mold assembly, and a detachable connecting plate is provided between the end mold assembly and each of the end mold connecting rods.

[0016] As a further improvement of the above technical solution: a plurality of detachable first support rods are provided between the side mold assembly and the bottom mold assembly, and the plurality of first support rods are distributed along the length direction of the side mold assembly.

[0017] As a further improvement of the above technical solution: a plurality of detachable second support rods are provided between the side mold assembly and the template platform, and the plurality of second support rods are distributed along the length direction of the side mold assembly.

[0018] Compared with the prior art, the advantages of the utility model are: the concrete precast beam formwork device disclosed by the utility model has a walking mechanism under the formwork platform, side formwork assemblies on both sides above the formwork platform, and a demolding mechanism is arranged between the side formwork assemblies and the formwork platform, so that the side formwork assemblies can be opened or closed on the formwork platform. After the concrete beam is steamed to reach the demolding strength, the demolding mechanism drives the side formwork assembly to be demolded directly on the formwork platform, and there is no need to transfer the formwork to a special demolding station for demolding. The structure is simple, easy to use, reduces construction steps, and saves the space required for precast beam production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a side structural schematic diagram of the utility model.

[0020] Figure 2 It is a structural schematic diagram of the cross section of the sliding structure of the utility model before demoulding.

[0021] Figure 3 It is a schematic structural diagram of the cross section of the support structure of the utility model before demoulding.

[0022] Figure 4 It is a schematic structural diagram of the cross section of the sliding structure of the utility model after demoulding.

[0023] Figure 5 It is a schematic structural diagram of the cross section of the support structure of the utility model after demoulding.

[0024] The symbols in the figure represent:

[0025] 1. Formwork platform; 11. Slide rail; 2. Walking mechanism; 3. Side formwork assembly; 31. Slide seat; 32. Side formwork formwork; 33. Side formwork back frame; 34. Formwork demoulding drive; 35. Working platform; 36. Guardrail; 37. End formwork connecting rod; 38. Elastic member; 4. Side formwork demoulding drive; 5. Bottom formwork assembly; 51. Bottom formwork formwork; 52. Bottom formwork main beam; 6. End formwork assembly; 61. Connecting plate; 71. Upper pull rod; 72. Lower pull rod; 81. First support rod; 82. Second support rod. DETAILED DESCRIPTION

[0026] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "assemble", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] Figures 1 to 5An embodiment of the concrete precast beam formwork device of the utility model is shown. The concrete precast beam formwork device of this embodiment includes a formwork platform 1. A walking mechanism 2 is provided at the lower part of the formwork platform 1 and side formwork assemblies 3 are provided at both sides of the upper part. A demoulding mechanism is provided between the side formwork assembly 3 and the formwork platform 1 to drive the side formwork assembly 3 to open or close the mold on the formwork platform 1. The walking mechanism 2 can be, for example, a hydraulically driven driving wheel or a motor-driven driving wheel, which cooperates with a driven wheel and a guide wheel to realize movement along the guide track. The specific structure is not repeated here.

[0031] The concrete precast beam formwork device of this embodiment is provided with a demoulding mechanism between the side formwork assembly 3 and the formwork platform 1, so that the side formwork assembly 3 can be opened or closed on the formwork platform 1. After the concrete beam is steamed to reach the demoulding strength, the demoulding mechanism drives the side formwork assembly 3 to open the mold directly on the formwork platform 1, and there is no need to transfer the formwork to a special demoulding station for demoulding. The structure is simple and easy to use.

[0032] Furthermore, in this embodiment, the side form assembly 3 includes a side form template 32 and a side form back frame 33 located outside the side form template 32, and the demoulding mechanism includes a plurality of side form demoulding drivers 4 and template demoulding drivers 34 distributed along the length direction of the template platform 1, the fixed end of the side form demoulding driver 4 is connected to the template platform 1, the movable end of the side form demoulding driver 4 is connected to the lower part of the side form template 32, the fixed end of the template demoulding driver 34 is connected to the upper part of the side form back frame 33, and the movable end of the template demoulding driver 34 is used to push the precast beam to separate the side form template 32 from the precast beam. Since the height dimension of the side form assembly 3 is relatively large, during demoulding, the precast beam can be pushed by a plurality of template demoulding drivers 34, and the upper part of the side form template 32 can be driven to separate from the concrete beam under the reaction force of the precast beam, and then the lower part of the side form template 32 can be driven to separate from the concrete beam by a plurality of side form demoulding drivers 4, and then the side form demoulding driver 4 drives the side form assembly 3 to move as a whole for demoulding. Applying force to demould from the upper and lower parts of the side form assembly 3 in turn is conducive to ensuring the demoulding effect and reliability of the side form assembly 3; since the length of the concrete precast beam generally reaches tens of meters, the length of the side form template 32 also reaches tens of meters accordingly, and the side form template 32 can be demoulded synchronously as a whole through multiple side form demoulding drivers 4 and template demoulding drivers 34 distributed along the length direction of the template platform 1, which has a simple and effective structure. Among them, the side form demoulding driver 4 and the template demoulding driver 34 are preferably oil cylinders, and of course in other embodiments, they can also be cylinders or electric telescopic rods.

[0033] Furthermore, in this embodiment, the demoulding mechanism also includes a plurality of slides 31 and slide rails 11 distributed along the length direction of the template platform 1, the slide 31 is connected to the side mold back frame 33, the slide rail 11 is fixedly connected to the template platform 1, and the slide 31 moves relative to the slide rail 11 along the width direction of the template platform 1. As mentioned above, since the length of the precast concrete beam generally reaches tens of meters, the length of the side mold assembly 3 also reaches tens of meters accordingly. Through the cooperation of multiple sets of slides 31 and slide rails 11, the side mold assembly 3 can be synchronously moved to open or close the mold as a whole, and the movement resistance can be reduced to ensure high movement accuracy. Preferably, the fixed end of the side mold demoulding drive 4 is fixed on the slide rail 11.

[0034] Furthermore, in this embodiment, an elastic member 38 is provided between the side form back frame 33 and the slide seat 31. Preferably, the side form back frame 33 and the slide seat 31 are connected by bolts or the like, and the elastic member 38 is a disc spring, which is sleeved on the bolts, and the elastic force of the disc spring is used to achieve a flexible connection between the side form back frame 33 and the slide seat 31, which is convenient for the side form template 32 to be demoulded smoothly compared with a rigid connection (the disadvantages of a rigid connection are: first, the excessive bonding force of the side form template 32 will make demoulding difficult, and second, after the upper steel bar is stuck on the side form template 32, the side form template 32 cannot be adjusted and can only be demoulded by force, which may cause deformation of the side form template 32 and partial collapse of the precast beam body).

[0035] As a preferred embodiment, a working platform 35 is provided on the side of the side formwork back frame 33 away from the side formwork template 32, and a guardrail 36 is provided on the working platform 35. The working platform 35 is convenient for workers to stand and pass, and the guardrail 36 plays a protective role to ensure the safety of the workers.

[0036] In this embodiment, a bottom mold assembly 5 is further provided between the side mold assemblies 3 on both sides, and end mold assemblies 6 are further provided at both ends of the bottom mold assembly 5. The bottom mold assembly 5 cooperates with the side mold assemblies 3 on both sides and the end mold assemblies 6 at both ends to form a cavity for forming a concrete beam, which can be used for pouring a concrete beam.

[0037] Furthermore, in this embodiment, the upper parts of the side mold assemblies 3 on both sides are connected by the upper tie rod 71 and the lower parts are connected by the lower tie rod 72 (specifically, the side mold back frames 33 of the two side mold assemblies 3 are connected by the upper tie rod 71, and the side mold templates 32 are connected by the lower tie rod 72), the height of the upper tie rod 71 is greater than the height of the end mold assembly 6, and the lower tie rod 72 passes through the bottom mold assembly 5. The side mold assemblies 3 on both sides can be connected into a whole by the upper tie rod 71 and the lower tie rod 72 to prevent the side mold assemblies 3 from being stretched and displaced when pouring concrete, and the structure is simple and effective. Preferably, the upper tie rod 71 and the lower tie rod 72 are provided with threaded sections at both ends and locked by nuts, which has good reliability and is easy to disassemble and assemble.

[0038] Further, in this embodiment, a plurality of end mold connecting rods 37 are provided at the end of the side mold assembly 3, and a detachable connecting plate 61 is provided between the end mold assembly 6 and each end mold connecting rod 37. It should be noted that the connecting plate 61 can be fixedly connected to the end mold connecting rod 37 and detachably connected to the end mold assembly 6; it can also be detachably connected to the end mold connecting rod 37 and fixedly connected to the end mold assembly 6; or it can be detachably connected to both the end mold connecting rod 37 and the end mold assembly 6, and can be disassembled before demoulding without hindering the demoulding of the side mold assembly 3. The end mold assembly 6 and the side mold assembly 3 can be connected as a whole by the end mold connecting rod 37 and the connecting plate 61, so as to prevent the end mold assembly 6 from being stretched and displaced when pouring concrete, and the structure is simple and effective. Preferably, a waist-shaped hole is opened on the connecting plate 61, and a threaded section is provided on the end mold connecting rod 37, and the threaded section passes through the waist-shaped hole and is locked by a nut, so as to have good reliability and convenient disassembly and assembly. The side mold assembly 3, the bottom mold assembly 5 and the end mold assembly 6 are an integrated structure before steaming and curing to reach the demoulding strength. There is no need to debug and match them every time before pouring, which reduces the workload and improves work efficiency.

[0039] Furthermore, in this embodiment, a plurality of detachable first support rods 81 are provided between the side mold assembly 3 and the bottom mold assembly 5, and the plurality of first support rods 81 are distributed along the length direction of the side mold assembly 3. Preferably, the bottom mold assembly 5 includes a bottom mold template 51 and a bottom mold main beam 52 provided below the bottom mold template 51, and the lower pull rod 72 penetrates the bottom mold template 51. A plurality of detachable first support rods 81 are provided between the side mold template 32 and the bottom mold main beam 52 in the side mold assembly 3. When pouring concrete, the first support rods 81 can further fix the side mold template 32 on the template platform 1 to improve reliability (a sliding structure is provided between the side mold template 32 and the template platform 1, and the position of the side mold template 32 is fixed only by the side mold demoulding drive 4, and the reliability is relatively low). Ear plates can be provided on the side mold template 32 and the bottom mold main beam 52, respectively, and the upper and lower ends of the first support rods 81 are connected to the ear plates by pins, bolts, etc., and the structure is simple and reliable, and it is easy to disassemble and assemble.

[0040] Furthermore, in this embodiment, a plurality of detachable second support rods 82 are provided between the side form assembly 3 and the formwork platform 1, and the plurality of second support rods 82 are distributed along the length direction of the side form assembly 3. Specifically, a plurality of second support rods 82 are provided between the side form back frame 33 and the formwork platform 1. When pouring concrete, the second support rods 82 can further fix the side form back frame 33 on the formwork platform 1 to improve reliability (the side form back frame 33 and the formwork platform 1 can slide relative to each other, and the side form back frame 33 is fixed only by the side form demoulding drive 4, and the reliability is relatively low). Ear plates can be provided on the side form back frame 33 and the formwork platform 1, respectively, and the upper and lower ends of the second support rods 82 are connected to the ear plates by pins, bolts, etc., and the structure is simple and reliable, and it is easy to disassemble and assemble.

[0041] See Figure 4 and Figure 5Before demolding the side form assembly 3, it is necessary to first remove the upper pull rod 71, the lower pull rod 72, the end form connecting rod 37, the first support rod 81 and the second support rod 82, and then multiple formwork demolding driving components 34 drive the side form formwork 32 to separate from the concrete beam, and finally multiple side formwork demolding driving components 4 drive the side form assembly 3 to move to both sides as a whole.

[0042] Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the art can use the above disclosed technical content to make many possible changes and modifications to the technical solution of the present invention without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims

1. A precast concrete beam formwork device, Features: The template platform (1) comprises a walking mechanism (2) at the bottom and side mold assemblies (3) at both sides of the top, and a demoulding mechanism is provided between the side mold assembly (3) and the template platform (1) to drive the side mold assembly (3) to open or close the mold on the template platform (1).

2. The precast concrete beam formwork device according to claim 1, Features: The side mold assembly (3) comprises a side mold template (32) and a side mold back frame (33) located outside the side mold template (32); the demoulding mechanism comprises a plurality of side mold demoulding driving members (4) and a template demoulding driving member (34) distributed along the length direction of the template platform (1); the fixed end of the side mold demoulding driving member (4) is connected to the template platform (1); the movable end of the side mold demoulding driving member (4) is connected to the lower part of the side mold template (32); the fixed end of the template demoulding driving member (34) is connected to the upper part of the side mold back frame (33); and the movable end of the template demoulding driving member (34) is used to push the precast beam to separate the side mold template (32) from the precast beam.

3. The precast concrete beam formwork device according to claim 2, Features: The demoulding mechanism further comprises a plurality of slide seats (31) and slide rails (11) distributed along the length direction of the template platform (1); the slide seat (31) is connected to the side template back frame (33); the slide rail (11) is fixedly connected to the template platform (1); and the slide seat (31) moves relative to the slide rail (11) along the width direction of the template platform (1).

4. The precast concrete beam formwork device according to claim 3, Features: An elastic member (38) is provided between the side mold back frame (33) and the slide seat (31).

5. The precast concrete beam formwork device according to claim 2, Features: A working platform (35) is provided on the side of the side formwork back frame (33) away from the side formwork template (32), and a guardrail (36) is provided on the working platform (35).

6. The precast concrete beam formwork device according to any one of claims 1 to 5, Features: A bottom mold assembly (5) is also provided between the side mold assemblies (3) on both sides, and end mold assemblies (6) are also provided at both ends of the bottom mold assembly (5).

7. The precast concrete beam formwork device according to claim 6, Features: The side mold assemblies (3) on both sides are connected at the upper part by an upper pull rod (71) and at the lower part by a lower pull rod (72). The height of the upper pull rod (71) is greater than the height of the end mold assembly (6). The lower pull rod (72) passes through the bottom mold assembly (5).

8. The precast concrete beam formwork device according to claim 6, Features: A plurality of end mold connecting rods (37) are provided at the end of the side mold assembly (3), and a detachable connecting plate (61) is provided between the end mold assembly (6) and each of the end mold connecting rods (37).

9. The precast concrete beam formwork device according to claim 6, Features: A plurality of detachable first support rods (81) are provided between the side mold assembly (3) and the bottom mold assembly (5), and the plurality of first support rods (81) are distributed along the length direction of the side mold assembly (3).

10. The precast concrete beam formwork device according to any one of claims 1 to 5, Features: A plurality of detachable second support rods (82) are provided between the side mold assembly (3) and the template platform (1), and the plurality of second support rods (82) are distributed along the length direction of the side mold assembly (3).

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