Novel bench formwork system for special-shaped curved surface

Abstract

The utility model discloses a novel bench formwork system for a special-shaped curved surface, relates to the technical field of building curtain wall construction, and aims to solve the technical problems of complicated working procedures and higher operation difficulty in the conventional mode for manufacturing a special-shaped curved surface bench. The system comprises a bottom table, connecting keys and side mold baffle sets, the connecting keys are installed at the four corners of the upper portion of the bottom table, the side mold baffle sets are detachably connected between every two adjacent connecting keys, a plurality of phase point cohesive soil columns are arranged on the upper portion of the bottom table, and the peaks of all the phase point cohesive soil columns form a special-shaped curved surface. A cavity formed by the bottom table and the side mold baffle set is filled with a cohesive soil table mold, and the surface of the cohesive soil table mold is a special-shaped curved surface. According to the special-shaped curved surface bench formwork, the special-shaped curved surface can be effectively and concretely lofted, and the deformation of the special-shaped curved surface bench formwork can be controlled.

Description

Technical Field

[0001] This utility model relates to the field of building curtain wall construction technology, and more specifically, it relates to a novel formwork system for irregular curved surfaces. Background Technology

[0002] Currently, most materials used for GRC (Glass Reinforced Concrete) curtain wall formwork systems with irregular curved surfaces include wood, silicone, fiberglass, and foam. The comprehensive cost of a standard wooden formwork is approximately 1200 yuan, with a lifespan of about 10 uses. The exact cost depends on the commonality rate of the formwork; in a 1:1 irregular curved surface mold, the commonality rate is almost zero, meaning the cost per square meter of wooden formwork is approximately 1200 yuan. While foam plastic formwork has a lifespan of only one use, its comprehensive cost in a 1:1 irregular curved surface mold is approximately 1000 yuan. Both of these commonly used mold materials are non-recyclable, meaning they cannot be recycled after molding, which is detrimental to environmental protection and cost savings.

[0003] For large, irregularly shaped curved surfaces, especially hyperboloids, foam is often used for 3D laser engraving. However, 3D laser engraving inevitably limits the size of the foam blocks, requiring the surface to be segmented. Smaller foam blocks are then carved and assembled to form a large, irregularly shaped curved surface mold. The newly assembled mold still has issues such as seams, uneven smoothness, and insufficient load-bearing capacity. It requires further processing, including surface hardening, smoothing, checking the curvature of the surface, and filling the seams, before it can be used. This process is costly, and the assembled large, irregularly shaped curved surface foam molds cannot be recycled and reused; they must be disposed of, which is environmentally unfriendly.

[0004] Both fiberglass and silicone require pre-molding and casting, which is more difficult to operate. Compared with laser-engraved foam, the process is more complicated and the cost is not reduced. It is also difficult to control the support mold for irregular curved surfaces. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a novel table mold system for irregular curved surfaces, which addresses the shortcomings of existing technologies and solves the technical problems of complicated procedures and high operational difficulty in the existing methods of manufacturing irregular curved surface mold tables.

[0006] This utility model discloses a novel formwork system for irregular curved surfaces. The system includes a base, connecting keys, and side mold baffles. Connecting keys are installed at the four corners above the base. Side mold baffles are detachably connected between adjacent connecting keys. Multiple phase point cohesive soil columns are provided above the base, and the vertices of all the phase point cohesive soil columns form an irregular curved surface. The cavity formed by the base and the side mold baffles is filled with a cohesive soil formwork, and the surface of the cohesive soil formwork is an irregular curved surface.

[0007] As a further improvement, the connecting key includes a base plate, a support tube, a first connecting part, and a second connecting part. The base plate is fixedly installed on the base platform, and the support tube is fixedly installed on the base plate. Multiple first connecting parts are fixedly installed on one side of the support tube, and multiple second connecting parts corresponding to the first connecting parts are fixedly installed on the other side of the support tube. The first connecting parts and the second connecting parts are arranged vertically.

[0008] One side of the side mold baffle assembly is connected to the first connecting part by bolts, and the other side of the side mold baffle assembly is connected to the second connecting part by bolts.

[0009] Furthermore, the first connecting part and the second connecting part have the same structure, both including a first side plate and two second side plates. The first side plate is fixedly installed on the support tube, and the second side plates are fixedly installed on both sides of the first side plate. The second side plates are arranged perpendicularly to the first side plate and are fixedly installed on the support tube. The first side plate has threaded holes.

[0010] Furthermore, the edge baffle assembly includes multiple splicing plates, each splicing plate having a male groove on one side and a female groove on the other side. The multiple splicing plates are arranged side by side, with the male groove of the splicing plate splicing with the female groove of the adjacent splicing plate.

[0011] Furthermore, the middle part of the side mold baffle assembly is equipped with bending-resistant stiffening ribs.

[0012] Furthermore, an insulating film is laid on the cohesive soil platform.

[0013] Furthermore, the thickness of the insulating film is 0.5μm-20μm.

[0014] Furthermore, the insulating film is a silicone oil film.

[0015] Furthermore, the clay platform is made of clay and glass fiber.

[0016] Furthermore, the base is made of concrete.

[0017] Beneficial effects

[0018] The advantages of this utility model are:

[0019] This utility model includes a base platform, connecting keys, and a side mold baffle assembly. Connecting keys are installed at the four corners of the base platform, and a side mold baffle assembly is detachably connected between two adjacent connecting keys. Multiple phase point cohesive soil columns are provided above the base platform, and the vertices of all phase point cohesive soil columns form an irregular curved surface. The cavity formed by the base platform and the side mold baffle assembly is filled with a cohesive soil platform mold, and the surface of the cohesive soil platform mold is an irregular curved surface. The use of cohesive soil avoids the disadvantages of foam, wood, fiberglass, etc., such as high cost, difficult mold opening, multiple process steps, complex operation, and non-reusability of materials. The phase points of the phase point cohesive soil columns are used to control the elevation control points of the irregular curved surface, which can effectively visualize the irregular curved surface and is beneficial to control the deformation of the irregular curved surface platform mold. Attached Figure Description

[0020] Figure 1 This is a perspective view of the novel platform mold system of this utility model;

[0021] Figure 2 This is an exploded view of the novel platform mold system of this utility model;

[0022] Figure 3 This is a cross-sectional view of the novel platform mold system of this utility model.

[0023] Among them: 1-cohesive soil platform, 2-connecting key, 21-bottom plate, 22-support pipe, 23-first connecting part, 24-second connecting part, 25-first side plate, 26-second side plate, 3-side mold baffle group, 4-phase point cohesive soil column, 5-isolation film, 6-bottom platform, 7-splicing plate. Detailed Implementation

[0024] The present invention will be further described below with reference to embodiments, but this does not constitute any limitation on the present invention. Any limited modifications made by any person within the scope of the claims of the present invention are still within the scope of the claims of the present invention.

[0025] See Figures 1-3 This utility model discloses a novel platform mold system for irregular curved surfaces. The system includes a base platform 6, connecting keys 2, and side mold baffle groups 3. Connecting keys 2 are installed at the four corners above the base platform 6. Side mold baffle groups 3 are detachably connected between two adjacent connecting keys 2. Multiple phase point cohesive soil columns 4 are provided above the base platform 6, and the vertices of all the phase point cohesive soil columns 4 form irregular curved surfaces. The cavity formed by the base platform 6 and the side mold baffle groups 3 is filled with a cohesive soil platform mold 1, and the surface of the cohesive soil platform mold 1 is an irregular curved surface.

[0026] like Figure 3As shown, the material of the phase point cohesive soil column 4 is a solidified cohesive soil column with a diameter of 5mm or 10mm. It serves as a phase point to provide control points for the elevation changes of the irregular curved surface. The spacing between the phase points in the X and Y directions of the curved surface is a certain module, which can be 50mm, 100mm, 150mm, 200mm, etc. The phase points can also be added at intervals according to the changes in the Z direction of the curved surface to supplement the changes in the Z direction of the irregular curved surface.

[0027] The height of the phase point cohesive soil columns 4 is used to control the curvature of the irregular curved surface GRC. When the curvature of the irregular curved surface is large, the height difference between the phase point cohesive soil columns is also greater. Additional phase point cohesive soil columns 4 are added where the height difference is large, i.e., the phase point cohesive soil columns 4 are densified in local locations, further refining the expression of the curvature variation range of the irregular curved surface. After the material is filled into the gaps between the phase point cohesive soil columns enclosed by the side mold baffle, it is air-dried and cured to form the desired shape.

[0028] The connecting key 2 includes a base plate 21, a support pipe 22, a first connecting part 23, and a second connecting part 24. The base plate 21 is fixedly installed on the base platform 6, and the support pipe 22 is fixedly installed on the base plate 21. Multiple first connecting parts 23 are fixedly installed on one side of the support pipe 22, and multiple second connecting parts 24 corresponding to the first connecting parts 23 are fixedly installed on the other side of the support pipe 22. The first connecting parts 23 and the second connecting parts 24 are arranged vertically. The connecting key 2 is made of steel, which has high strength and light weight, and provides a connection and fixation function for the side formwork baffle assembly 3. The connecting key 2 and the side formwork baffle assembly 3 can be connected by bolts or welding. When the lateral thrust of the cohesive soil platform 1 is large, the connecting key 2 and the base platform 6 provide lateral force resistance.

[0029] One side of the side mold baffle assembly 3 is connected to the first connecting part 23 by bolts, and the other side of the side mold baffle assembly 3 is connected to the second connecting part 24 by bolts.

[0030] The first connecting part 23 and the second connecting part 24 have the same structure, both including a first side plate 25 and two second side plates 26. The first side plate 25 is fixedly installed on the support pipe 22, and the second side plates 26 are fixedly installed on both sides of the first side plate 25. The second side plates 26 are arranged perpendicular to the first side plate 25 and are fixedly installed on the support pipe 22. The first side plate 25 has threaded holes. Both the first side plate 25 and the second side plate 26 are made of galvanized steel sheet.

[0031] The edge-mounted baffle assembly 3 includes multiple splicing plates 7. Each splicing plate 7 has a male groove on one side and a female groove on the other. Multiple splicing plates 7 are arranged side-by-side, with the male groove of one splicing plate 7 connecting to the female groove of the adjacent splicing plate 7. The splicing plate 7 serves as a baffle to restrict the spread of cohesive soil to the surrounding area. The length of the baffle has a certain modulus, and the material of the baffle can be steel (but is not limited to steel). The thickness of the baffle is determined through stress calculations based on the length modulus, the lateral thrust of the cohesive soil, and the material of the baffle.

[0032] The module number of the single module of the edge mold baffle group 3 is divided according to the specific size of use. The height is divided into modules of 150mm, such as 150mm, 300mm, etc. The horizontal length is selected according to the requirements of the irregular curved surface mold, and different thicknesses and lengths of plates are selected (plate materials include but are not limited to galvanized steel plates, aluminum plates, stainless steel plates, wood plates, plastic plates, etc.). The thickness is selected according to the 5mm module spacing, such as 5mm, 10mm, 15mm, etc. When the edge mold baffle 3 is composed of independent blocks, the vertical splicing position of the blocks is connected by male and female groove interlocking.

[0033] The middle part of the side mold baffle group 3 is equipped with a bending stiffening rib. The stiffening rib is made of rigid material (rigid material includes but is not limited to steel, aluminum alloy, stainless steel, plastic, etc.), and its length, width and height are selected by specific stress calculations; the stiffening rib and the side mold baffle are reliably connected (reliable connection methods include but are not limited to mechanical connection, welding, etc.).

[0034] An isolation film 5 for demolding is laid on the irregular curved surface mold 7. The thickness of the isolation film 5 is 0.5μm-20μm. The isolation film 5 is a silicone oil film. It is relatively thin, has a certain degree of toughness, and does not mix with cohesive soil or cement-based materials. It forms a sealed protective film on the cohesive soil mold 1, preventing the sprayed material from seeping into the cohesive soil and making demolding easier. It can effectively prevent the GRC material from seeping into the cohesive soil and also allows the GRC material to be easily removed from the mold.

[0035] The clay formwork 1 is made of clay, specifically clay with 1.5% glass fiber added. When wet, it readily changes shape under external force, allowing it to be stretched and molded into a specified shape. After curing, it possesses a certain strength. The advantage of this material lies in its ability to transition from liquid to solid state at room temperature by controlling the moisture content, further enabling its recycling and reuse after demolding.

[0036] The base platform 6 is made of concrete, which has a certain compressive strength and can provide bottom restraint for the cohesive soil formwork 1, ensuring that the cohesive soil formwork 1 will not sink during use. The base platform 6 is extensible and expandable in the X and Y directions, and can accommodate multiple cohesive soil formwork 1s simultaneously when needed.

[0037] After the above-mentioned cohesive soil platform mold 1 is formed and demolded, the isolation film 5 is removed, the bolts between the connecting key 2 and the side mold baffle group 3 are removed, the side mold baffle group 3 is separated from the base 6, and then the solidified cohesive soil platform mold 1 is mixed with an appropriate amount of water to restore it to a liquid state, so that it can be put into the material use of the next irregular curved surface platform mold, thereby realizing the secondary use of the platform mold.

[0038] This novel formwork system serves as the formwork for irregularly shaped curved GRC curtain walls. The process for fabricating these curtain walls involves spraying liquid GRC material onto a clay formwork 1 covered with an insulating film 5 to form a GRC irregularly shaped curved panel of a certain thickness. Before the GRC irregularly shaped curved panel solidifies, back bolts or supporting steel frames are embedded within it. After the GRC irregularly shaped curved panel is formed, a robotic arm or manual lifting is used to pull the back bolts or steel frames, thus achieving demolding.

[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present utility model. These modifications and improvements will not affect the effectiveness of the present utility model or the practicality of the patent.

Claims

1. A novel table die system for a contoured surface, characterized by, The system comprises a base table (6), connecting keys (2) and a side mold baffle group (3), the connecting keys (2) are arranged at four corners of the top of the base table (6), the side mold baffle group (3) is detachably connected between two adjacent connecting keys (2), a plurality of phase point cohesive soil columns (4) are arranged on the top of the base table (6), and the top points of all the phase point cohesive soil columns (4) form a special-shaped curved surface, and the base table (6) and the side mold baffle group (3) form a cavity filled with a cohesive soil table mold (1), and the surface of the cohesive soil table mold (1) is a special-shaped curved surface.

2. A novel table die system for a contoured surface as claimed in claim 1, wherein, The connecting key (2) comprises a bottom plate (21), a supporting pipe (22), a first connecting part (23) and a second connecting part (24), the bottom plate (21) is fixedly installed on the base table (6), the supporting pipe (22) is fixedly installed on the bottom plate (21), a plurality of first connecting parts (23) are fixedly installed on one side of the supporting pipe (22), a plurality of second connecting parts (24) are fixedly installed on the other side of the supporting pipe (22), and the first connecting part (23) and the second connecting part (24) are arranged vertically. One side of the side mold baffle group (3) is connected with the first connecting part (23) through a bolt, and the other side of the side mold baffle group (3) is connected with the second connecting part (24) through a bolt.

3. A novel table die system for contoured surfaces as claimed in claim 2, wherein, The first connecting part (23) and the second connecting part (24) are identical in structure and each comprise a first side plate (25) and two second side plates (26), the first side plate (25) is fixedly installed on the supporting pipe (22), the second side plates (26) are fixedly installed on both sides of the first side plate (25), the second side plates (26) are arranged vertically to the first side plate (25), the second side plates (26) are fixedly installed on the supporting pipe (22), and threaded holes are formed in the first side plate (25).

4. A novel table die system for contoured surfaces as claimed in claim 1 wherein, The side mold baffle group (3) comprises a plurality of splicing plates (7), one side of the splicing plate (7) is provided with a male groove, the other side of the splicing plate (7) is provided with a female groove, a plurality of splicing plates (7) are arranged side by side, and the male groove of the splicing plate (7) is spliced with the female groove of the adjacent splicing plate (7).

5. A novel table die system for contoured surfaces as claimed in claim 1 wherein, A bending-resistant stiffening rib is arranged in the middle of the side mold baffle group (3).

6. A novel table die system for contoured surfaces as claimed in claim 1 wherein, An isolation film (5) is arranged on the cohesive soil table mold (1).

7. A novel die system for contoured surfaces as claimed in claim 6 wherein, The thickness of the isolation film (5) is 0.5-20 μm.

8. A novel die system for contoured surfaces as claimed in claim 6 wherein, The isolation film (5) is a silicon oil film.

9. A novel die system for contoured surfaces as claimed in claim 1, wherein, The cohesive soil table mold (1) is made of cohesive soil and glass fiber.

10. A novel die system for contoured surfaces as claimed in claim 1, wherein, The base table (6) is made of concrete.

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