High-precision integrated forming die for concrete box girder

Abstract

This utility model discloses a high-precision integrated molding die for concrete box girders, relating to the field of box girder molding die technology. The utility model includes a box girder forming platform, with a forming mold frame symmetrically slidably connected to the top of the platform. Heating plates are symmetrically embedded and fixed inside the forming mold frame. Movable baffles are slidably connected within the mold cavity of the forming mold frame, and connecting rods are symmetrically fixed to one side of each baffle. This utility model uses a driving hydraulic cylinder to move the movable baffles, adjusting their position and the distance between the two baffles. This allows for precise adjustment of the forming length of the concrete box girder, making it suitable for forming concrete box girders of different lengths and offering greater practicality. The heating plates and heating frame sleeve heat and dry the concrete in the mold cavity from both inside and outside, enabling faster forming of the concrete box girder and improving its forming efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of box girder forming mold technology, and in particular relates to a high-precision integrated forming mold for concrete box girders. Background Technology

[0002] Box girders are a type of beam used in bridge construction. They are reinforced concrete structures, and because they are hollow and resemble boxes, they are called box girders. A search revealed that patent application number 202321401820.2 discloses a molding die for precast box girders. The following solution is proposed: a base, with electrically operated telescopic rods evenly distributed on the upper surface of the base, and baffles fixed on the upper surface of the electric telescopic rods; a processing table fixed on the upper surface of the base, with symmetrically distributed slots on the upper surface of the processing table; an installation groove on the upper surface of the processing table, with an electric heating element fixed on the lower surface of the installation groove; a feeding mechanism fixed on one side surface of the processing table; and equally distributed support rods fixed on the upper surface of the processing table.

[0003] However, in actual use, the applicant found that when processing the prefabrication of box girders, it could only form concrete box girders of the same length, and could not form concrete box girders of different lengths according to the usage requirements. In view of this, we propose a high-precision integrated molding mold for concrete box girders. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a high-precision integrated molding die for concrete box girders, comprising a box girder forming platform. A forming mold frame is symmetrically slidably connected to the top of the forming platform. Heating plates are symmetrically embedded and fixed inside the forming mold frame. Movable baffles are slidably connected to the mold cavity of the forming mold frame. Connecting rods are symmetrically fixed to one side of the movable baffles. The ends of the two connecting rods away from the movable baffles movably penetrate the side wall of the forming mold frame and are fixedly connected by the connecting plate. A hydraulic cylinder is fixedly mounted on the outer wall of the forming mold frame. The telescopic end of the hydraulic cylinder is fixedly connected to the connecting plate. A core column is fixedly connected to the inner wall of the forming mold frame near the hydraulic cylinder. A heating frame sleeve is embedded and fixed inside the core column. The core column passes through the movable baffle. A connecting slide is fixedly connected to the bottom of the forming mold frame away from the hydraulic cylinder. A central support plate is fixedly installed at the center of the bottom of the box girder forming platform. A controller is fixedly installed on the front side of the central support plate. Side support plates are symmetrically fixedly installed at the bottom of the box girder forming platform on both sides of the central support plate. A motor is fixedly installed on the outer wall of one side of the side support plate. A bidirectional screw is coaxially fixedly connected to the output end of the motor. The end of the bidirectional screw away from the motor is rotatably connected to the side support plate on the other side through a bearing. The threads at both ends of the bidirectional screw have opposite directions of rotation, and the two ends of the bidirectional screw are respectively threaded through the connecting slides at the bottom of the two forming mold frames.

[0006] Preferably, the two heating plates are respectively positioned close to the two side walls of the mold cavity inside the forming mold frame.

[0007] Preferably, the core column has a hollow cavity inside, and the heating frame is disposed between the hollow cavity and the outer wall of the core column.

[0008] Preferably, the heating plate and the heating frame are electrically connected to the controller via wires.

[0009] Preferably, the controller is electrically connected to an external power source via a wire, and the hydraulic cylinder and the motor are respectively electrically connected to the controller via wires.

[0010] Preferably, the bottom of the forming mold frame is symmetrically fixed with guide sliders, which slide along the guide grooves opened on the side wall of the box girder forming platform.

[0011] This utility model has the following beneficial effects:

[0012] This utility model discloses a high-precision integrated molding die for concrete box girders. By driving a hydraulic cylinder to move movable baffles and adjusting their positions, the distance between the two movable baffles can be adjusted, thereby enabling precise adjustment of the molding length of the concrete box girder. It is suitable for molding and processing concrete box girders of different lengths, making it more practical. Through the setting of heating plates and heating frames, the concrete in the molding die cavity can be heated and dried from both the inside and outside, enabling the concrete box girder to be molded more quickly and improving the molding efficiency of concrete box girders. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a top view schematic diagram of a high-precision integrated molding mold for concrete box girders according to the present invention.

[0015] Figure 2 This is a bottom view structural diagram of a high-precision integrated molding mold for concrete box girders according to the present invention.

[0016] Figure 3 This is a side sectional view of the forming mold frame and core column in a high-precision integrated forming mold for concrete box girders according to this utility model.

[0017] The attached diagram lists the components represented by each number as follows:

[0018] 1. Box girder forming platform; 11. Central support plate; 12. Side support plate; 13. Guide slide; 2. Forming mold frame; 21. Movable baffle; 22. Connecting rod; 23. Connecting plate; 24. Connecting slide; 25. Guide slider; 3. Hydraulic cylinder; 4. Motor; 5. Bidirectional screw; 6. Controller; 7. Core column; 71. Hollow cavity; 8. Heating plate; 9. Heating frame sleeve. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3As shown, this utility model provides a technical solution:

[0021] A high-precision integrated molding die for concrete box girders includes a box girder forming platform 1. A forming mold frame 2 is symmetrically slidably connected to the top of the forming platform 1. Guide sliders 25 are symmetrically fixed to the bottom of the forming mold frame 2. The guide sliders 25 slide along guide grooves 13 opened on the side wall of the forming platform 1. A movable baffle 21 is slidably connected in the mold cavity of the forming mold frame 2. The side wall of the movable baffle 21 slides along the inner wall of the mold cavity of the forming mold frame 2, and the bottom of the movable baffle 21 slides along the top of the forming platform 1. Connecting rods 22 are symmetrically fixed to one side of the movable baffle 21. The ends of the two connecting rods 22 away from the movable baffle 21 movably pass through the side wall of the forming mold frame 2 and are fixedly connected by connecting plates 23. A liquid... The hydraulic cylinder 3 has its telescopic end fixedly connected to the connecting plate 23. A core column 7 is fixedly connected to the inner wall of the forming mold frame 2 near the hydraulic cylinder 3. The end of the core column 7 away from the hydraulic cylinder 3 is flush with the end face of the forming mold frame 2 away from the hydraulic cylinder 3. The core column 7 passes through the movable baffle 21. By driving the hydraulic cylinder 3, the movable baffle 21 is moved, and the position of the movable baffle 21 can be adjusted. The distance between the two movable baffles 21 can be adjusted, thereby enabling precise adjustment of the forming length of the concrete box girder. This method is suitable for forming concrete box girders of different lengths and has greater practicality. A connecting slide 24 is fixedly connected to the bottom of the forming mold frame 2 away from the hydraulic cylinder 3. A central support plate 11 is fixedly installed at the center of the bottom of the box girder forming platform 1. A controller 6 is fixedly installed on the front side of the central support plate 11. The controller 6 is electrically connected to an external power supply via wires. The hydraulic cylinder 3 and the motor 4 are electrically connected to the controller 6 via wires. Side support plates 12 are symmetrically fixedly installed at the bottom of the box girder forming platform 1 on both sides of the central support plate 11. A motor 4 is fixedly installed on the outer wall of one side support plate 12. A bidirectional screw 5 is coaxially fixedly connected to the output end of the motor 4. The end of the bidirectional screw 5 away from the motor 4 is rotatably connected to the side support plate 12 on the other side via a bearing. The threads at both ends of the bidirectional screw 5 are opposite in direction, and the threads at both ends of the bidirectional screw 5 respectively pass through the connecting slide 24 at the bottom of the two forming mold frames 2. When processing the concrete box girder, the controller 6 can drive the motor 4 to rotate in the forward direction to drive the bidirectional screw 5. When the screw 5 rotates, the two connecting slides 24 move closer together synchronously. This, in turn, causes the two forming mold frames 2 to move closer and fit together along the guide groove 13. At this point, the distance between the two movable baffles 21 can be adjusted according to the length of the concrete box girder to be precast. During adjustment, the drive controller 6 synchronously drives the two hydraulic cylinders 3 to move the connecting plate 23. The connecting plate 23 then moves the connecting rod 22 along with the movable baffles 21, causing the two movable baffles 21 to move closer together synchronously. This allows for rapid adjustment of the distance between the two movable baffles 21. After adjusting the distance to the required length, concrete can be poured into the mold cavity of the forming mold frame 2 between the two movable baffles 21.After the box girder is formed, the reverse drive motor 4 drives the two forming mold frames 2 to move away synchronously, separating the forming mold frames 2, core column 7, and box girder. The formed box girder can then be removed from the top of the box girder forming platform 1.

[0022] Heating plates 8 are symmetrically embedded and fixed inside the forming mold frame 2. The two heating plates 8 are respectively set close to the two side walls of the mold cavity inside the forming mold frame 2. A heating frame sleeve 9 is embedded and fixed inside the core column 7. Both the heating plates 8 and the heating frame sleeve 9 are equipped with heating wires for heating. A hollow cavity 71 is opened inside the core column 7. The heating frame sleeve 9 is set between the hollow cavity 71 and the outer wall of the core column 7. The heating plates 8 and the heating frame sleeve 9 are electrically connected to the controller 6 through wires. Through the heating plates 8 and the heating frame sleeve 9, the concrete in the mold cavity of the forming mold frame 2 can be heated and dried from both inside and outside, so that the concrete box girder can be formed more quickly and the forming efficiency of the concrete box girder can be improved. During the concrete forming process, the heating plates 8 and the heating frame sleeve 9 can be energized and heated by the controller 6 to accelerate the drying and forming of the concrete in the mold cavity of the forming mold frame 2.

[0023] Working Principle: During the molding and processing of concrete box girders, the controller 6 drives the motor 4 to rotate forward, which in turn drives the bidirectional screw 5 to rotate. The rotation of the bidirectional screw 5 drives the two connecting slides 24 to move closer synchronously. Thus, the two connecting slides 24 drive the two forming mold frames 2 to move closer and fit together along the guide slide 13. At this time, the distance between the two movable baffles 21 can be adjusted according to the length of the concrete box girder to be prefabricated. During adjustment, the controller 6 drives the two hydraulic cylinders 3 to move the connecting plate 23. The connecting plate 23 then drives the connecting rod 22 to move together with the movable baffles 21. The two movable baffles 21 are brought closer together synchronously, thereby quickly adjusting the distance between them. After the distance between the two movable baffles 21 is adjusted to the required length, concrete can be poured into the mold cavity of the forming mold frame 2 between the two movable baffles 21. During the concrete forming process, the heating plate 8 and the heating frame sleeve 9 can be energized and heated by the controller 6 to accelerate the drying and forming of the concrete in the mold cavity of the forming mold frame 2. After the box girder is formed, the reverse drive motor 4 drives the two forming mold frames 2 to move away synchronously, so that the forming mold frame 2, the core column 7 and the box girder are separated, and the formed box girder can be removed from the top of the box girder forming platform 1.

[0024] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications to the technical solutions described in the foregoing embodiments or equivalent substitutions of some of the technical features shall fall within the protection scope of the present utility model.

Claims

1. A high-precision integrated molding die for concrete box girders, comprising a box girder forming table (1), characterized in that: The top of the box girder forming platform (1) is symmetrically slidably connected to a forming mold frame (2). A heating plate (8) is symmetrically embedded and fixed inside the forming mold frame (2). A movable baffle (21) is slidably connected in the mold cavity of the forming mold frame (2). A connecting rod (22) is symmetrically fixedly connected to one side of the movable baffle (21). The ends of the two connecting rods (22) away from the movable baffle (21) movably penetrate the side wall of the forming mold frame (2) and are fixedly connected through a connecting plate (23). A hydraulic cylinder (3) is fixedly installed on the outer wall of the forming mold frame (2). The telescopic end of the hydraulic cylinder (3) is fixedly connected to the connecting plate (23). A core column (7) is fixedly connected to the inner wall of the forming mold frame (2) near the hydraulic cylinder (3). A heating frame sleeve (9) is embedded and fixed inside the core column (7). The core column (7) penetrates the movable baffle (21). A connecting slide (24) is fixedly connected to the bottom of the forming mold frame (2) away from the hydraulic cylinder (3). A central support plate (11) is fixedly installed at the center of the bottom of the box girder forming platform (1). A controller (6) is fixedly installed on the front side of the central support plate (11). Side support plates (12) are symmetrically fixedly installed at the bottom of the box girder forming platform (1) on both sides of the central support plate (11). A motor (4) is fixedly installed on the outer wall of one side of the side support plate (12). A bidirectional screw (5) is coaxially fixedly connected to the output end of the motor (4). The end of the bidirectional screw (5) away from the motor (4) is rotatably connected to the side support plate (12) on the other side through a bearing. The threads at both ends of the bidirectional screw (5) are opposite in direction. The threads at both ends of the bidirectional screw (5) respectively thread through the connecting slides (24) at the bottom of the two forming mold frames (2).

2. The high-precision integrated molding die for concrete box girders according to claim 1, characterized in that, The two heating plates (8) are respectively positioned close to the two side walls of the mold cavity inside the forming mold frame (2).

3. The high-precision integrated molding die for concrete box girders according to claim 1, characterized in that, The core column (7) has a hollow cavity (71) inside, and the heating frame (9) is disposed between the hollow cavity (71) and the outer wall of the core column (7).

4. The high-precision integrated molding die for concrete box girders according to claim 1, characterized in that, The heating plate (8) and the heating frame (9) are electrically connected to the controller (6) via wires.

5. The high-precision integrated molding die for concrete box girders according to claim 1, characterized in that, The controller (6) is electrically connected to an external power source via a wire, and the hydraulic cylinder (3) and the motor (4) are electrically connected to the controller (6) via wires respectively.

6. The high-precision integrated molding die for concrete box girders according to claim 1, characterized in that, The bottom of the forming mold frame (2) is symmetrically fixed with guide sliders (25), and the guide sliders (25) slide along the guide grooves (13) opened on the side wall of the box girder forming platform (1).

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