Die for pouring flat arch type concrete member

Abstract

The utility model provides a mould for pouring a flat arch type concrete member, which comprises a fixed mould table, a bottom mould, an end mould and a side mould assembly, the end mould is hinged with the fixed mould table, a fastening reinforcing device with a telescopic function is arranged outside the end mould and is used for applying pressure to the end part when the mould is closed, and the side mould assembly can be in sliding connection relative to the fixed mould table; the end die and the side die assembly are in bolt type interlocking connection; the side mold assembly comprises a side mold plate, a pushing truss, a plurality of driving devices, a plurality of sliding assemblies and a plurality of supporting frames, the outer side of the side mold plate is fixedly connected with the pushing truss, the driving ends of the driving devices are all fixedly connected with the pushing truss, the fixed end of one driving device is fixedly arranged on one supporting frame, and each sliding assembly comprises a rail and a sliding block. The rail is fixedly arranged on the supporting frame, and the sliding block is fixedly arranged on the pushing truss. The construction safety of the prefabricated part is improved, damage to the mold is reduced, the mold strength is guaranteed, and deformation errors caused when one set of mold is used for multiple times of component production are reduced.

Description

Technical Field

[0001] The utility model relates to the field of large-scale component mold technology and prefabricated component production, in particular to a mold used for pouring a flat arch type concrete component. Background Art

[0002] Existing subway stations are increasingly adopting prefabricated structures. Subway stations mainly include high-arch and flat-top types. Compared with high-arch subway stations, flat-top structures have the advantages of reducing the number of top plates, reducing the depth of foundation pit excavation, and fast assembly speed, and are widely used in prefabricated subway stations.

[0003] The arch components used to assemble the flat roof structure are large in size and heavy in volume. They are large components and have irregular shapes. It is necessary to design corresponding molds when pouring concrete to form them. After the concrete in the mold solidifies, the size expands and squeezes the side mold of the mold. If the mold strength is not enough, the mold will deform. In order to solve the above problems, the new patent with patent number CN216465218U proposes a quick-detachable mold based on concrete pouring, including a base frame and side panels. The side panels are arranged on the left and right sides of the top of the base frame. Baffles are arranged on the outside of the side panels. The baffles and side panels are movably connected through a steering gear to form a side door structure. A support frame is arranged on the side panel, and a worm gear is arranged on the support frame. The servo motor drives the worm gear to move to drive the support frame to move, thereby driving the opening and closing of the side mold.

[0004] However, as the internal design space requirements of subway stations continue to increase, when casting larger-sized flat arch components, the bearing capacity of the mold structure is limited, and the connection between the support frame and the worm gear, as well as the connection between the side panel and the baffle are prone to strength instability.

[0005] There is an urgent need for a mold for casting tank-arch concrete components, which has higher bearing capacity and more stable performance than the existing technology and can be used for casting tank-arch components of larger sizes. Utility Model Content

[0006] In order to solve the defects existing in the prior art, the utility model proposes a mold for casting a flat arch concrete member, comprising a fixed mold platform, a bottom mold, an end mold, and a side mold assembly. The bottom mold is fixedly arranged on the top of the fixed mold platform. The end molds are two in number and are respectively located at the front and rear sides of the fixed mold platform. The end molds are hinged to the fixed mold platform. A fastening and reinforcing device with a telescopic function is arranged on the outside of the end mold to apply pressure to the end when the mold is closed. The side mold assemblies are two in number and are respectively located at the left and right sides of the fixed mold platform. The side mold assemblies can be slidably connected relative to the fixed mold platform; the end molds and the side mold assemblies are interlocked in a latch-type connection;

[0007] The side formwork assembly includes a side formwork, a pushing truss, a plurality of driving devices, a plurality of sliding assemblies, and a plurality of supporting frames. The outer side of the side formwork is fixedly connected to the pushing truss, and the driving ends of a plurality of driving devices are fixedly connected to the pushing truss. The fixed end of a driving device is fixed on a supporting frame. The sliding assembly includes a track and a slider. The track is fixed on the supporting frame, and the slider is fixed on the pushing truss.

[0008] Furthermore, the side mold assembly also includes a personnel operating platform, and the personnel operating platform is fixedly connected to the pushing truss.

[0009] Furthermore, a plurality of tension support rods are detachably connected to the upper ends of the left and right side templates, and the tension support rods are used to form a tension force on the left and right side templates.

[0010] Furthermore, the driving device includes a servo motor and a worm gear, and the top end of the worm gear is fixedly connected to the pushing truss.

[0011] Furthermore, the fastening and reinforcing device is a hydraulic cylinder or a telescopic cylinder.

[0012] Furthermore, the support frame is fixedly connected to the fixed die table, so that the force-bearing area of ​​the bottom of the mold can be increased, the pressure of the fixed die table can be shared, and the supporting performance can be more stable.

[0013] Furthermore, the support frame is configured as a triangular support frame, and this structure has good stability.

[0014] Compared with the prior art, the advantages of the utility model are as follows:

[0015] 1. The mold of the utility model, the support frame effectively shares the pressure of the concrete's own weight and the personnel operating platform on the fixed mold platform by supporting one end of the side mold sliding track, improves the safety of prefabricated construction, reduces damage to the mold, ensures the mold strength, and reduces the deformation error caused by using a set of molds for multiple component production.

[0016] 2. The mold of the utility model has front and rear end molds that are connected and fixed by means of hydraulic cylinders and latch-type interlocking connections, which effectively solves the problem of concrete leakage during pouring and improves the adaptability of the mold to vibration.

[0017] 3. The mold of the utility model is large in size and heavy in weight. The design of the personnel operating platform realizes the practicality and operability of the mold casting process, which is convenient for workers to operate, leaving sufficient operating space and operating platform, which is convenient for mold assembly, disassembly and operation in the production process, effectively improving the construction efficiency and quality of tank arch buildings, and has broad application prospects.

[0018] 4. Utilizing servo motors and laid tracks, the side formwork can realize automatic mold closing and demolding, saving construction time and labor costs.

[0019] 5. The fixed formwork can better adapt to the stability problems caused by the large amount of concrete in the flat arch components. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the mold of the utility model;

[0021] Figure 2 It is a schematic diagram of the connection structure between the fixed mold platform and the bottom mold and the end mold of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the push truss of the utility model;

[0023] Figure 4 A schematic diagram of the connection structure between the triangular support frame, the driving device and the sliding assembly of the utility model;

[0024] Figure 5 It is a schematic diagram of the structure of the sliding assembly of the utility model;

[0025] Figure 6 This is a schematic diagram of the end mold structure of the utility model;

[0026] Figure 7 It is a structural schematic diagram of the mold of the utility model in the mold opening state.

[0027] In the above figures: 1. Fixed mold base; 11. Column; 21. Side mold; 22. Push truss; 23. Driving device; 231. Servo motor; 232. Worm gear; 24. Sliding assembly; 241. Track; 242. Slider; 25. Support frame; 251. Crossbeam; 26. Personnel operating platform; 27. Tension support rod; 3. End mold; 31. Fastening reinforcement device; 32. Latch lock; 33. Hinge; 4. Bottom mold. DETAILED DESCRIPTION

[0028] To facilitate those skilled in the art to understand the present invention, specific implementations of the present invention are described below with reference to the accompanying drawings.

[0029] like Figures 1 to 7As shown, the utility model provides a mold for casting a flat arch concrete member, including a fixed mold platform 1, a bottom mold 4, an end mold 3, and a side mold assembly. The bottom mold 4 is fixed on the top of the fixed mold platform 1, and the end molds 3 are 2 in number, which are respectively located at the front and rear sides of the fixed mold platform 1. The end molds 3 are hinged to the fixed mold platform 1. The outside of the end mold 3 is provided with a fastening and reinforcing device 31 with a telescopic function to apply pressure to the end when the mold is closed. The side mold assemblies are 2 in number, which are respectively located at the left and right sides of the fixed mold platform 1. The side mold assemblies can be slidably connected relative to the fixed mold platform 1 to realize mold removal and closing.

[0030] The side formwork assembly includes a side formwork 21, a push truss 22, a plurality of driving devices 23, a plurality of sliding components 24, and a plurality of supporting frames 25. In this embodiment, the number of driving devices 23, sliding components 24, and supporting frames 25 is four, respectively. The side formwork 21 is in direct contact with the concrete, the outer side of the side formwork 21 is fixedly connected to the push truss 22, the driving ends of the four driving devices 23 are fixedly connected to the push truss 22, and the fixed ends of the driving devices 23 are fixedly arranged on the supporting frames 25. Figure 4 , 5 As shown, the sliding assembly 24 includes a track 241 and a slider 242 . The track 241 is fixed on the support frame 25 , and the slider 242 is fixed on the pushing truss 22 .

[0031] The fixed die table 1 and the support frame 25 are both welded steel structures. In this embodiment, the fixed die table 1 is welded with square steel or angle steel to form a bottom frame, a plurality of columns 11 are welded and fixed on the bottom frame, square steel is fixedly welded between adjacent columns 11, and the bottom die 4 is fixedly installed on the top of the column 11.

[0032] like Figure 4 As shown, in this embodiment, the support frame 25 is a triangular support frame, which has higher structural stability.

[0033] like Figure 4 As shown, the driving device 23 includes a servo motor 231 and a worm gear 232, and the top end of the worm gear 232 is fixedly connected to the pushing truss 22. The servo motor 231 is fixedly mounted on the support frame 25, the servo motor 231 is electrically connected to the external control circuit, and the output end of the servo motor 231 is fixedly connected to the power shaft of the worm gear 232.

[0034] Specifically, in order to ensure better connectivity, a crossbeam 251 is welded to the support frame 25 , the rail 241 is welded to the crossbeam 251 , and one end of the crossbeam 251 close to the fixed mold platform 1 is fixedly welded to the column 11 of the fixed mold platform 1 .

[0035] The servo motor 231 works to drive the worm gear 232 to drive the push truss 22 to move synchronously, and the push truss 22 drives the side template 21 to move along the track 241 to achieve demolding and closing of the side template 21.

[0036] The support frame 25 effectively shares the self-weight of reinforced concrete and the pressure of the personnel operating platform 26 on the fixed mold platform 1 by supporting one end of the side mold sliding track 241, thereby improving the safety of prefabricated part construction, reducing damage to the mold, ensuring the strength of the mold, and reducing the deformation error caused by using a set of molds for multiple component production.

[0037] In this embodiment, if Figure 6 As shown, the fastening and reinforcing device 31 is a hydraulic cylinder. The hydraulic cylinder can also be replaced by a telescopic cylinder.

[0038] The end mold 3 is fixed by a hydraulic cylinder, and the end mold 3 and the side mold assembly are connected by a latch-type interlocking connection, which effectively solves the problem of concrete leakage during the pouring process and improves the adaptability of the mold to vibration.

[0039] The tank arch component is large in size and volume, belongs to a large component, and has an irregular shape. During the pouring of concrete, it is difficult to effectively eliminate the bubbles in the concrete by simply relying on the vibrator attached to the mold, which leads to a large number of bubbles inside and on the surface of the produced tank arch component, which affects the component. Using the vibrator for a long time will cause irreversible damage to the mold. In order to solve the above problem, it is necessary to combine it with manual vibration to avoid the occurrence of this problem. However, the traditional tank arch mold lacks a safe and convenient operating platform, and the larger size of the tank arch itself will bring difficulties to the workers' construction work. For this reason, the side mold assembly of the mold of the utility model is provided with a personnel operating platform 26, which is fixedly connected to the push truss 22 to provide a safe and convenient operating platform for manual vibration. The personnel operating platform 26 also realizes the practicality and operability of the mold pouring process, is convenient for workers to operate, leaves enough operating space and operating platform, is convenient for the assembly, disassembly and operation of the mold during the production process, effectively improves the construction efficiency and quality of the tank arch building, and has broad application prospects.

[0040] Furthermore, a plurality of tension support rods 27 are detachably connected to the upper ends of the left and right side templates 21 to form a tension force on the left and right side templates 21 .

[0041] In order to ensure better stress strength and enhance the stability of the entire mold, the support frame 25 is fixedly connected to the fixed mold platform 1, and the fixing method can be welding connection. Specifically, Figure 1 As shown, the bottom of the support frame 25 is welded to the fixed mold platform 1.

[0042] The end mold 3 and the side mold assembly are connected in a latch-type interlocking manner. Specifically, a latch-type lock 32 is provided on the end mold 3 , and a latch that cooperates with the latch-type lock 32 on the end mold 3 is provided on the side mold plate 21 .

[0043] The end mold 3 is connected to the fixed mold platform 1 through a hinge 33, and is connected to the side mold plate 21 through a latch lock 32. It can be opened when not in use, and when in use, it is pushed to the corresponding position and fixed by a hydraulic cylinder.

[0044] In this embodiment, the specific connection methods of the above-mentioned fixed connections are all bolt connections unless otherwise specified.

[0045] Working process:

[0046] When the mold is working, it is assembled first;

[0047] The left and right side mold assemblies fixed on the fixed mold platform 1 are electrically connected through the external control circuit of the servo motor 231, and then the servo motor 231 drives the power shaft of the worm gear to rotate, and then the power shaft rotates through the engagement of the worm gear 232 to drive the lead screw to rotate, and the lead screw extends to push the truss 22, and the truss 22 pushes the side molds 21 on both sides to move toward each other and arrive on the fixed mold platform 1, and then when the templates on the left and right sides are pushed to the specified position, the servo motor 231 stops rotating, and then the front and rear end molds 3 are pushed by the hydraulic cylinder to rotate to contact the left and right side molds 21, and then fixed to the side molds 21 on the left and right sides through the latch lock 32;

[0048] After the mold is closed and concrete is poured, the staff stands on the personnel operating platform 26 to perform manual vibration and manual flattening of the top mold;

[0049] After the flat arch concrete member is solidified and formed, the latch lock 32 is opened, the end mold 3 is disconnected from the side molds 21 on the left and right sides, and then the servo motor 23151 is reversed to make the side molds 21 on the left and right sides move in opposite directions, and the left and right demoulding is completed quickly;

[0050] The slab is maintained on the fixed formwork platform 12.

[0051] in, Figure 1 In mold closing state, Figure 7 It is in the mold open state.

[0052] The above-described implementation methods of the utility model do not constitute a limitation on the protection scope of the utility model. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model shall be included in the protection scope of the claims of the utility model.

Claims

1. A mold for casting a flat arch concrete member, characterized in that: It comprises a fixed die platform (1), a bottom die (4), an end die (3), and a side die assembly, wherein the bottom die (4) is fixedly arranged on the top of the fixed die platform (1), the end die (3) is in the number of two and is located at the front and rear sides of the fixed die platform (1), the end die (3) is hinged to the fixed die platform (1), a tightening and reinforcing device (31) with a telescopic function is arranged on the outside of the end die (3) for applying pressure to the end when the mold is closed, the side die assembly is in the number of two and is located at the left and right sides of the fixed die platform (1), and the side die assembly can be slidably connected relative to the fixed die platform (1); the end die (3) and the side die assembly are interlocked by latches; The side formwork assembly comprises a side formwork (21), a pushing truss (22), a plurality of driving devices (23), a plurality of sliding assemblies (24), and a plurality of supporting frames (25); the outer side of the side formwork (21) is fixedly connected to the pushing truss (22); the driving ends of the plurality of driving devices (23) are all fixedly connected to the pushing truss (22); the fixed end of a driving device (23) is fixedly mounted on a supporting frame (25); the sliding assembly (24) comprises a track (241) and a sliding block (242); the track (241) is fixedly mounted on the supporting frame (25), and the sliding block (242) is fixedly mounted on the pushing truss (22).

2. The mold according to claim 1, characterized in that: The side mold assembly also includes a personnel operating platform (26), and the personnel operating platform (26) is fixedly connected to the pushing truss (22).

3. The mold according to claim 1, characterized in that: A plurality of tension support rods (27) are detachably connected to the upper ends of the left and right side templates (21).

4. The mold according to claim 1, characterized in that: The driving device (23) comprises a servo motor (231) and a worm gear (232), and the top end of the worm gear (232) is fixedly connected to the pushing truss (22).

5. The mold according to claim 1, characterized in that: The fastening and reinforcing device (31) is a hydraulic oil cylinder or a telescopic cylinder.

6. The mold according to claim 1, characterized in that: The support frame (25) is fixedly connected to the fixed die platform (1).

7. The mold according to claim 1, characterized in that: The support frame (25) is configured as a triangular support frame.

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