Composite material building template and manufacturing method

Abstract

The invention discloses a composite material building template and a manufacturing method thereof, relates to the technical field of building engineering, solves the problems of difficult demoulding and inconvenience in using existing composite material building templates, ensures the strength of the template, reduces the overall quality, and improves the demoulding effect. The specific scheme is as follows: it comprises a panel, a back frame, a reinforcing rib assembly and a side frame which are integrally formed by compression molding, a demoulding layer is fixedly provided on one side of the panel, and a reinforcing rib assembly is provided on the other side, the reinforcing rib assembly is composed of a plurality of cross-arranged transverse reinforcing ribs and longitudinal reinforcing ribs, the peripheral side of the reinforcing rib assembly is wrapped by the side frame, the panel, the reinforcing rib assembly and the side frame are fixedly connected by the back frame, the back frame is composed of a bottom plate and a side plate fixedly arranged on the peripheral side of the bottom plate, an installation groove for installing the reinforcing rib assembly and the side frame is fixedly provided on the bottom plate, and the height of the installation groove is less than the height of the reinforcing rib assembly and the side frame.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering, and in particular to a composite material construction template and a manufacturing method thereof. Background Art

[0002] Formwork is a temporary support structure widely used in the construction industry, mainly made of wood, aluminum and steel. Steel formwork has the disadvantages of high energy consumption and large carbon dioxide emissions during the manufacturing process, and wooden formwork requires a large amount of wood, both of which do not meet the requirements of energy conservation and emission reduction. Continuous fiber reinforced thermoplastic composite building formwork has the advantages of high strength, light weight, reusability and easy recycling, becoming the development trend of the formwork industry.

[0003] The inventors have found that the surfaces of existing composite building formworks that contact concrete are mostly made of composite materials. Such surfaces are tightly bonded to concrete, making them difficult to remove in construction scenarios where concrete vibrators are not used for demolding, thereby reducing construction efficiency. Building formworks that are easy to remove (such as aluminum alloy formworks, etc.) are too heavy overall and inconvenient to use. In addition, in order to ensure overall strength, existing composite building formworks use a large amount of thermoplastic resins, or adopt honeycomb reinforcement ribs, double-frame layouts, multi-layer settings and other structural forms. The overall weight is large, making it inconvenient to move and use manually. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a composite material building formwork and a manufacturing method thereof, wherein side frames are arranged on the peripheral sides of the reinforcing rib assembly, and a back frame is used to fix the panel, the reinforcing rib assembly and the side frames together, and the height of the mounting groove on the back frame is less than the height of the reinforcing rib assembly and the side frames, thereby ensuring the strength and stability of the formwork while reducing the amount of thermoplastic resin used, thereby reducing the overall weight of the building formwork; at the same time, a demoulding layer is arranged on the panel, and there is no need to use materials with a low friction coefficient such as stainless steel as a whole, thereby reducing the overall quality while ensuring the demoulding effect, thereby solving the problem that the existing composite material building formwork is difficult to demold and inconvenient to use.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] In the first aspect, the present invention provides a composite material building formwork, comprising a panel, a back frame, a rib assembly and a side frame that are molded as one piece, a demoulding layer is fixedly provided on one side of the panel, and a rib assembly is provided on the other side, the rib assembly is composed of a plurality of cross-arranged transverse ribs and longitudinal ribs, the rib assembly is wrapped around the side frame, the panel, the rib assembly and the side frame are fixedly connected by a back frame, the back frame is composed of a bottom plate and side plates fixedly arranged around the bottom plate, the bottom plate is fixedly provided with an installation groove for installing the rib assembly and the side frame, and the height of the installation groove is less than the height of the rib assembly and the side frame.

[0007] As a further implementation, the panel, transverse reinforcement ribs, longitudinal reinforcement ribs and side frames are all made of continuous fiber reinforced thermoplastic composite materials.

[0008] As a further implementation method, the transverse reinforcement ribs are arranged at intervals along the length direction of the building template, the longitudinal reinforcement ribs are arranged at equal intervals along the width direction of the building template, and the spacing between two adjacent transverse reinforcement ribs located in the middle position of the building template is smaller than the spacing between two adjacent transverse reinforcement ribs at other positions.

[0009] As a further implementation method, a plurality of inserting grooves are provided at intervals along the length direction of the transverse reinforcing ribs and the longitudinal reinforcing ribs for inserting the transverse reinforcing ribs with the longitudinal reinforcing ribs.

[0010] As a further implementation method, a plurality of reinforcing columns are fixed on the base plate, the top of the reinforcing columns is flush with the top of the reinforcing rib assembly, and a reinforcing column is provided at each cross connection between the transverse reinforcing ribs and the longitudinal reinforcing ribs and at the connection between the reinforcing rib assembly and the side frame.

[0011] As a further implementation method, the top of the side frame is flush with the top of the reinforcing rib assembly and the top of the side panel, a plurality of first through holes are evenly opened on the side frame along its circumference, and the side panel is provided with second through holes corresponding to the first through holes one by one.

[0012] As a further implementation, the corners of the side frames are rounded structures, and the side frames are fixedly connected to adjacent side panels.

[0013] As a further implementation, a plurality of third through holes and reinforcing tubes are provided at intervals along the length direction of the bottom plate at the middle position thereof, the reinforcing tubes correspond to the third through holes one by one and are coaxially arranged, and the inner diameter of the reinforcing tubes is the same as the diameter of the third through holes.

[0014] As a further implementation method, the reinforcement tube is fixedly connected to the adjacent installation groove and the reinforcement column, and the height of the reinforcement tube is the same as the height of the installation groove.

[0015] In a second aspect, the present invention provides a method for making a composite material building formwork, which is as follows:

[0016] The continuous fibers are completely impregnated and compounded with a thermoplastic resin in a molten state to obtain a unidirectional tape;

[0017] The panel, transverse reinforcement ribs, longitudinal reinforcement ribs and side frames are made by using unidirectional tape to fix the demoulding layer and the panel;

[0018] Splice the reinforcing rib components, and install the side frames on the peripheral sides of the reinforcing rib components to form a reinforcing rib frame, place the reinforcing rib frame as a whole on the side of the panel without the demoulding layer, and put the panel, the reinforcing rib frame and the thermoplastic resin mass into a molding machine for compression molding;

[0019] After forming, post-processing such as drilling, trimming and cutting is carried out.

[0020] The beneficial effects of the present invention are as follows:

[0021] (1) The present invention sets side frames on the surrounding sides of the reinforcing rib assembly, and uses a back frame to fix the panel, the reinforcing rib assembly and the side frames. The height of the mounting groove on the back frame is less than the height of the reinforcing rib assembly and the side frames. While ensuring the installation strength and stability, the use of thermoplastic resin is reduced, thereby reducing the overall weight of the building formwork. At the same time, a demoulding layer is set on the panel, and the panel does not need to be made of materials with a low friction coefficient such as stainless steel as a whole. While reducing the overall quality, its demoulding effect is guaranteed. It is suitable for construction scenarios where demoulding by vibration without using a concrete vibrator.

[0022] (2) The panel, transverse reinforcing ribs, longitudinal reinforcing ribs and side frames of the present invention are all made of continuous fiber reinforced thermoplastic composite materials, which not only greatly reduces the overall mass of the building formwork, but also ensures the strength, impact resistance and mechanical properties of the building formwork.

[0023] (3) The spacing between two adjacent transverse reinforcing ribs at the middle position of the building formwork of the present invention is smaller than the spacing between two adjacent transverse reinforcing ribs at other positions. Compared with the arrangement of transverse reinforcing ribs with equal spacing, the strength of the middle position of the building formwork can be improved while ensuring the overall strength of the building formwork with the same number, thereby ensuring the impact resistance of the middle position.

[0024] (4) The transverse reinforcing ribs and the longitudinal reinforcing ribs of the present invention are provided with a plurality of insertion grooves at intervals along the length direction, which not only facilitates the installation of the transverse reinforcing ribs and the longitudinal reinforcing ribs, but also improves the connection stability between the two, effectively limits their relative position, and improves the installation accuracy.

[0025] (5) In the present invention, each cross-connection between the transverse reinforcing ribs and the longitudinal reinforcing ribs and the connection between the reinforcing rib assembly and the side frame are provided with a reinforcing column, so as to reinforce the connection between the reinforcing ribs and between the reinforcing rib assembly and the side frame through the reinforcing column, improve the strength of the connection, avoid the influence of the groove on the strength of the reinforcing rib body, and at the same time improve the connection stability between the reinforcing ribs and between the reinforcing rib assembly and the side frame.

[0026] (6) The reinforcing tube of the present invention is fixedly connected to the adjacent installation groove and reinforcing column to improve its reinforcing capacity. The height of the reinforcing tube is the same as the height of the installation groove to reduce the use of thermoplastic resin, thereby reducing the overall weight of the building formwork while ensuring strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0028] Figure 1 It is a schematic diagram of an exploded structure of a composite building formwork according to one or more embodiments of the present invention;

[0029] Figure 2 is a schematic diagram of a top view of a composite material building template according to one or more embodiments of the present invention;

[0030] Figure 3 It is a partial three-dimensional structural schematic diagram of a composite material building template according to one or more embodiments of the present invention;

[0031] Figure 4 is a schematic structural diagram of a reinforcement tube according to one or more embodiments of the present invention;

[0032] In the figure: the distances or sizes between parts are exaggerated to show the positions of the parts, and the schematic diagram is for illustration only;

[0033] Among them, 1. panel; 2. back frame; 3. transverse reinforcement ribs; 4. longitudinal reinforcement ribs; 5. side frame; 6. bottom plate; 7. side plate; 8. reinforcement column; 9. installation groove; 10. first through hole; 11. second through hole; 12. plug-in groove; 13. reinforcement tube. DETAILED DESCRIPTION

[0034] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0035] As introduced in the background technology, the surfaces of existing composite building formworks that contact concrete are mostly made of composite materials. Such surfaces are tightly combined with concrete, which increases the difficulty of demolition and reduces construction efficiency. In addition, in order to ensure the overall strength, the existing composite building formworks use a large amount of thermoplastic resin, and the overall weight is large, which is not convenient for manual movement and use. In order to solve the above technical problems, the present invention proposes a composite building formwork and a manufacturing method.

[0036] Example 1

[0037] In a typical embodiment of the present invention, Figure 1-Figure 4 As shown, a composite material building formwork is proposed, including a panel 1, a back frame 2, a reinforcing rib assembly and a side frame 5 which are integrally formed by molding, the reinforcing rib assembly consisting of a plurality of transverse reinforcing ribs 3 and a plurality of longitudinal reinforcing ribs 4, the transverse reinforcing ribs 3 and the longitudinal reinforcing ribs 4 being cross-arranged, the reinforcing rib assembly being arranged on one side of the panel 1, the peripheral side of the reinforcing rib assembly being wrapped by the side frame 5, and the panel 1, the reinforcing rib assembly and the side frame 5 being fixedly connected by the back frame 2.

[0038] The panel 1, the transverse reinforcing ribs 3, the longitudinal reinforcing ribs 4 and the side frame 5 are all made of a unidirectional tape composited with continuous fiber reinforced thermoplastic composite tape lines.

[0039] The thickness of panel 1 is 2.4 mm. A demoulding layer is fixedly provided on the surface of panel 1 away from the reinforcement rib assembly. The demoulding layer is made of any material such as stainless steel, polyester, polytetrafluoroethylene, etc. The material has low surface energy and low friction coefficient. The demoulding layer is fixedly connected to panel 1 by bolts (plastic bolts) to promote the demoulding of the building formwork and concrete. It is suitable for construction scenarios where demoulding by vibration without using a concrete vibrator.

[0040] The thickness of the transverse reinforcing ribs 3, the longitudinal reinforcing ribs 4 and the side frames 5 are all 3.5-4 mm, with high strength, strong impact resistance and strong mechanical properties. While ensuring the overall strength of the template, the overall weight of the template is greatly reduced.

[0041] The back frame 2 is made of thermoplastic resin by molding, and the panel 1, the transverse reinforcing ribs 3, the longitudinal reinforcing ribs 4 and the side frame 5 are fixedly connected by molding in an integrated manner.

[0042] The transverse reinforcement ribs 3 are arranged at intervals along the length direction of the building formwork, and the longitudinal reinforcement ribs 4 are arranged at equal intervals along the width direction of the building formwork, wherein the spacing between two adjacent transverse reinforcement ribs 3 located at the middle position of the building formwork is smaller than the spacing between two adjacent transverse reinforcement ribs 3 at other positions. Compared with the equal-spaced arrangement of the transverse reinforcement ribs 3, the strength at the middle position of the building formwork can be improved without increasing the number of transverse reinforcement ribs 3 used, that is, while ensuring the overall strength of the building formwork, the strength of the middle position is improved, thereby ensuring the impact resistance of the middle position.

[0043] The transverse reinforcement ribs 3 and the longitudinal reinforcement ribs 4 are respectively provided with a plurality of insertion grooves 12 at intervals along their length directions for insertion into the transverse reinforcement ribs 3 and the longitudinal reinforcement ribs 4, which not only facilitates the installation of the transverse reinforcement ribs 3 and the longitudinal reinforcement ribs 4, but also improves the connection stability between the two, effectively limits their relative position, and improves the installation accuracy.

[0044] It should be noted that when assembling the transverse reinforcing ribs 3 and the longitudinal reinforcing ribs 4, it is necessary to ensure that the upper and lower surfaces of the transverse reinforcing ribs 3 and the longitudinal reinforcing ribs 4 are in the same horizontal plane.

[0045] The back frame 2 is composed of a bottom plate 6 , side plates 7 , and reinforcing columns 8 . There are four side plates 7 , which are fixedly arranged on the sides of the bottom plate 6 to form a frame. There are several reinforcing columns 8 , which are fixedly arranged on the bottom plate 6 .

[0046] The top of the reinforcing column 8 is flush with the top of the reinforcing rib assembly. A reinforcing column 8 is provided at each cross connection between the transverse reinforcing rib 3 and the longitudinal reinforcing rib 4 and at the connection between the reinforcing rib assembly and the side frame 5. The reinforcing column 8 is used to reinforce the connections between the reinforcing ribs and between the reinforcing rib assembly and the side frame 5, thereby improving the strength of the connections, avoiding the influence of the grooves on the strength of the reinforcing rib body, and improving the connection stability between the reinforcing ribs and between the reinforcing rib assembly and the side frame 5.

[0047] The bottom plate 6 is also provided with an installation groove 9, and the arrangement shape of the installation groove 9 is the same as the overall shape of the reinforcing rib assembly and the side frame 5, so as to be used for the limited installation of the reinforcing rib assembly and the side frame 5, thereby improving the installation stability and strength between the reinforcing rib assembly, the side frame 5 and the bottom plate 6, and the installation groove 9 is fixedly connected to the adjacent reinforcing column 8.

[0048] It should be noted that the installation groove 9 does not need to fully cover the reinforcing rib assembly and the side frame 5, that is, the height of the top of the installation groove 9 is less than the top height of the reinforcing rib assembly and the side frame 5, so as to reduce the use of thermoplastic resin while ensuring the installation strength and stability, thereby reducing the overall weight of the building formwork.

[0049] The top of the side frame 5 is flush with the top of the reinforcing rib assembly, the top of the reinforcing column 8 and the top of the side panel. The side frame 5 is also fixedly connected to the side panel 7. A plurality of first through holes 10 are evenly opened on the side frame 5 along its circumference, and a plurality of second through holes 11 are evenly opened on the side panel 7. The first through holes 10 correspond to the second through holes 11 one by one for the installation of bolts, which facilitates the assembly between building templates.

[0050] The corners of the building formwork are of right-angle structure to ensure the sealing ability after the formwork is assembled. The corners of the side frame 5 are of rounded angle structure and are wrapped with side panels 7. The setting of the rounded angle can disperse the force at the corners to the overall frame composed of the two sides / reinforcement rib assembly and the side frame 5, thereby improving the impact resistance of the corners of the building formwork.

[0051] The bottom plate 6 is also provided with a third through hole for installing the tension bolts. The third through hole is arranged in the middle of the bottom plate 6 . At least one third through hole is provided and the third through hole is arranged at intervals along the length direction of the bottom plate 6 .

[0052] Combination Figure 2 , Figure 4 As shown, a reinforcing tube 13 is fixedly provided at a position on the bottom plate 6 corresponding to the third through hole. The reinforcing tube 13 is a hollow structure. The inner diameter of the reinforcing tube 13 is the same as the diameter of the third through hole, and the two are coaxially arranged to reinforce the position of the bottom plate 6 where the third through hole is provided.

[0053] The reinforcing tube 13 is fixedly connected to the adjacent mounting groove 9 and reinforcing column 8 to improve its reinforcing capacity. The height of the reinforcing tube 13 is the same as the height of the mounting groove 9 to reduce the use of thermoplastic resin, thereby reducing the overall weight of the building formwork while ensuring strength.

[0054] A blocking cap is also provided for blocking the third through hole. The blocking cap is inserted into the third through hole. In practical applications, when a tension bolt needs to be installed, the blocking cap can be pushed out of the third through hole using the tension bolt.

[0055] It should be noted that when inserting the plugging cap, the large end of the plugging cap needs to be located at the panel 1, so as to prevent the concrete from squeezing the plugging cap out of the third through hole during casting.

[0056] Example 2

[0057] In another typical embodiment of the present invention, a method for making a composite material building formwork is provided, which is specifically as follows:

[0058] Firstly, continuous fibers are completely impregnated with thermoplastic resin in a molten state to form CFRT (continuous fiber reinforced thermoplastic composite) tapes, and unidirectional tapes are obtained by compounding the CFRT tapes;

[0059] The unidirectional tape is composited to form a panel 1, a transverse reinforcing rib 3, a longitudinal reinforcing rib 4 and a side frame 5, wherein the side frame 5 is formed by winding, the panel 1 is processed by a cross-cutting machine, a longitudinal cutting machine and a punching machine, and the demoulding layer is fixedly connected to the panel 1 by bolt connection;

[0060] Manual / mechanical arms splice transverse reinforcing ribs 3 and longitudinal reinforcing ribs 4 to form a reinforcing rib assembly, and install side frames 5 on the circumference of the reinforcing rib assembly to form an integral reinforcing rib frame, and place the reinforcing rib frame as a whole on the side of the panel 1 where no demoulding layer is provided, and then place the panel 1, the reinforcing rib frame and the thermoplastic resin mass into a molding machine for compression molding;

[0061] After forming, post-processing such as drilling, trimming and cutting is carried out.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A composite material building formwork, characterized in that: It comprises a panel, a back frame, a reinforcing rib assembly and a side frame formed by molding in one piece, a demoulding layer is fixedly provided on one side of the panel, and a reinforcing rib assembly is provided on the other side, the reinforcing rib assembly is composed of a plurality of cross-arranged transverse reinforcing ribs and longitudinal reinforcing ribs, the peripheral side of the reinforcing rib assembly is wrapped by the side frame, the panel, the reinforcing rib assembly and the side frame are fixedly connected by the back frame, the back frame is composed of a bottom plate and a side plate fixedly arranged on the peripheral side of the bottom plate, an installation groove for installing the reinforcing rib assembly and the side frame is fixedly provided on the bottom plate, and the height of the installation groove is less than the height of the reinforcing rib assembly and the side frame; The panel, transverse reinforcing ribs, longitudinal reinforcing ribs and side frames are all made of continuous fiber reinforced thermoplastic composite materials; The transverse reinforcing ribs are arranged at intervals along the length direction of the building template, and the longitudinal reinforcing ribs are arranged at equal intervals along the width direction of the building template, and the spacing between two adjacent transverse reinforcing ribs located in the middle position of the building template is smaller than the spacing between two adjacent transverse reinforcing ribs at other positions; When assembling the transverse and longitudinal reinforcement ribs, it is necessary to ensure that the upper and lower surfaces of the transverse and longitudinal reinforcement ribs are in the same horizontal plane; The corners of the side frames are rounded and blunt-angled structures, and the side frames are fixedly connected to the adjacent side panels; A plurality of reinforcing columns are fixedly arranged on the bottom plate, the top of the reinforcing columns is flush with the top of the reinforcing rib assembly, and a reinforcing column is arranged at each cross connection between the transverse reinforcing rib and the longitudinal reinforcing rib and at the connection between the reinforcing rib assembly and the side frame; A plurality of third through holes and reinforcing tubes are provided at intervals along the length direction of the bottom plate at the middle position of the bottom plate, the reinforcing tubes correspond to the third through holes one by one and are coaxially arranged, and the inner diameter of the reinforcing tubes is the same as the diameter of the third through holes; The reinforcing tube is fixedly connected to the adjacent installation groove and the reinforcing column, and the height of the reinforcing tube is the same as the height of the installation groove.

2. A composite building formwork according to claim 1, characterized in that: A plurality of inserting grooves are arranged at intervals along the length direction of the transverse reinforcing ribs and the longitudinal reinforcing ribs for inserting the transverse reinforcing ribs with the longitudinal reinforcing ribs.

3. A composite building formwork according to claim 1, characterized in that: The top of the side frame is flush with the top of the reinforcing rib assembly and the top of the side plate. The side frame is evenly provided with a plurality of first through holes along its circumference, and the side plate is provided with second through holes corresponding to the first through holes one by one.

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