A prefabricated concrete pipe culvert mold dismounting machine

Abstract

The utility model discloses a prefabricated concrete pipe culvert mould dismantling machine applies in concrete pipe culvert production technical field, including crossbeam, both sides of crossbeam bottom are all hopped and are bolted with stand, the bottom sliding connection of crossbeam has sliding table. Through driving screw rod rotation and thread sleeve thread engagement, thereby can drive sliding table bottom mould clamping plate horizontal movement, simultaneously drive winding wheel rotation and surface cable winding or open. So that the dismantling seat can move up and down on the bottom of the sliding table, the mould clamping plate is accurately close to the top of the concrete pipe culvert mould and is clamped, and the removed mould is conveniently hoisted and removed. The spring force is used to drive the trapezoidal block to clamp the concrete pipe culvert mould that is hung up. When the concrete pipe culvert mould shakes left and right when moving, a part of the shaking force can be offset by the elastic force, reducing the shaking amplitude. Thus, the influence on the dismantling machine is reduced, and the stability of the concrete pipe culvert mould during hoisting is improved.

Description

Technical Field

[0001] This utility model belongs to the field of concrete pipe culvert production technology, and specifically relates to a precast concrete pipe culvert mold demolding machine. Background Technology

[0002] Concrete pipe culverts are circular pipe culverts made of reinforced concrete, mainly used for drainage or water flow channels below ground level.

[0003] Currently, Chinese utility model patent CN215249167U discloses a hoisting mechanism for assembling and disassembling concrete molds. Existing methods for prefabricating concrete culverts generally involve pouring concrete into molds and then disassembling the molds after the concrete has solidified. During the disassembly process, workers typically remove the bolts securing the concrete culvert molds, and then use steel cables to hoist the disassembled molds away. However, existing demolding machines lack supporting structures when lifting concrete culvert molds, causing significant lateral swaying due to the lateral force exerted by the hooks during removal. This swaying affects the stability of the demolding machine in moving the concrete culvert molds, reducing demolding efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a precast concrete culvert mold dismantling machine, which has the advantages of accurately moving the hook to the top of the concrete culvert mold to lift and remove the dismantled mold and improving the stability of the concrete culvert mold during hoisting.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a precast concrete pipe culvert mold demolding machine, comprising a crossbeam, columns bolted to both sides of the bottom of the crossbeam, a sliding table slidably connected to the bottom of the crossbeam, a first motor bolted to one end of the crossbeam, a threaded rod rotatably connected to the crossbeam bolted to the output end of the first motor, a threaded sleeve bolted to the top of the sliding table threaded onto the surface of the threaded rod, a second motor bolted to one side of the sliding table, a take-up wheel rotatably connected to the sliding table bolted to the output end of the second motor, a steel cable fixedly wound around the take-up wheel, and a demolding base fixedly connected to the end of the steel cable away from the take-up wheel.

[0006] The above technical solution involves rotating the threaded rod to engage with the threaded sleeve, thereby causing the mold clamping plate at the bottom of the sliding table to move laterally. Simultaneously, it rotates the winding wheel to wind or unwind the surface steel cable. This allows the demolding base to move vertically at the bottom of the sliding table, accurately clamping the mold clamping plate close to the top of the concrete culvert mold, facilitating rapid hoisting and removal of the demolded mold. The spring force is used to clamp the hoisted concrete culvert mold with a trapezoidal block. When the concrete culvert mold sways laterally during removal, some of the swaying force is counteracted by the spring force, reducing the amplitude of the sway. This minimizes the impact on the demolding machine and improves the stability of the concrete culvert mold during hoisting.

[0007] The present invention is further configured such that trapezoidal blocks are provided on both sides of the mold clamping plate, a movable plate is bolted to the side of the two trapezoidal blocks that are far apart from each other, and telescopic rods are bolted to both sides of the bottom of the sliding table, and springs are respectively bolted to the sliding table and the movable plate on the surface of the telescopic rods.

[0008] By adopting the above technical solution, when the concrete culvert mold sways left and right during removal, part of the swaying force can be canceled out by the elastic force, reducing the amplitude of the sway. This reduces the impact on the demolding machine and improves the stability of the concrete culvert mold during hoisting.

[0009] The present invention is further configured such that each of the two columns is fixedly installed with a movable wheel at its bottom, and each of the two movable wheels is provided with a threaded shaft that is threadedly connected to the column on the side away from each other, and a base plate is welded to the bottom of the threaded shaft.

[0010] The above technical solution facilitates the movement of the beams and columns via the casters, while the rotating threaded shaft causes the base plate to contact the ground, using friction to limit the movement of the beams and columns.

[0011] The present invention is further configured such that a reinforcing rod bolted to the crossbeam is provided at the bottom of the threaded rod, and the threaded sleeve is slidably sleeved with the surface of the reinforcing rod.

[0012] The above technical solution provides support and limits for the sliding table, improving the stability of left and right sliding.

[0013] The present invention is further configured such that rollers that cooperate with steel cables are rotatably connected to both sides inside the sliding table.

[0014] The above technical solution is used to support and position the steel cable, preventing wear caused by contact between the steel cable and the sliding table.

[0015] The present invention is further configured such that the output end of the second motor is also bolted with a motor brake that works in conjunction with the take-up reel.

[0016] The above technical solution is used to brake the output end of the second motor, so that the winding wheel can keep the sliding table stationary inside and not rotate.

[0017] The present invention is further configured such that inspection doors are bolted to the front of both the crossbeam and the sliding table.

[0018] The above technical solution facilitates the opening of the crossbeam and sliding table, allowing for the maintenance and replacement of internal parts.

[0019] The present invention is further configured such that hydraulic cylinders are bolted to both sides inside the mold-removing base, and the output ends of the two hydraulic cylinders are bolted to mold-removing clamps that are slidably connected to the inside of the mold-removing base.

[0020] The above technical solution involves activating a hydraulic cylinder to bring two demolding clamps closer together, thereby clamping the concrete culvert mold before hoisting it away when the demolding base is lowered onto the concrete culvert mold using a steel cable.

[0021] In summary, this utility model has the following beneficial effects:

[0022] 1. By rotating the threaded rod and engaging the threaded sleeve, the mold clamping plate at the bottom of the sliding table can be moved laterally; at the same time, the winding wheel is rotated to wind up or unwind the surface steel cable. This allows the demolding base to move up and down at the bottom of the sliding table, accurately clamping the mold clamping plate close to the top of the concrete culvert mold, facilitating the quick hoisting and removal of the demolded mold;

[0023] 2. The spring force is used to clamp the suspended concrete culvert mold with trapezoidal blocks. This way, when the concrete culvert mold sways from side to side during removal, some of the swaying force can be counteracted by the spring force, reducing the amplitude of the sway. This reduces the impact on the demolding machine and improves the stability of the concrete culvert mold during hoisting. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0026] Figure 3 This is the utility model Figure 2 Enlarged view of point A in the image;

[0027] Figure 4 This is a cross-sectional view of the demolding base structure of this utility model.

[0028] Reference numerals in the attached diagram: 1. Crossbeam; 2. Column; 3. Sliding table; 4. First motor; 5. Threaded rod; 6. Threaded sleeve; 7. Second motor; 8. Rewinding wheel; 9. Steel cable; 10. Demolding clamp; 11. Telescopic rod; 12. Spring; 13. Moving plate; 14. Trapezoidal block; 15. Moving wheel; 16. Threaded shaft; 17. Base plate; 18. Reinforcing rod; 19. Roller; 20. Motor brake; 21. Inspection door; 22. Demolding base; 23. Hydraulic cylinder. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings.

[0030] Example 1:

[0031] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 A precast concrete culvert mold demolding machine includes a crossbeam 1, with columns 2 bolted to both sides of the bottom of the crossbeam 1. A sliding table 3 is slidably connected to the bottom of the crossbeam 1. A first motor 4 is bolted to one end of the crossbeam 1. A threaded rod 5, rotatably connected to the crossbeam 1, is bolted to the output end of the first motor 4. A threaded sleeve 6, bolted to the top of the sliding table 3, is threaded onto the surface of the threaded rod 5. A second motor 7 is bolted to one side of the sliding table 3. A take-up wheel 8, rotatably connected to the sliding table 3, is bolted to the output end of the second motor 7. A steel cable 9 is fixedly wound around the take-up wheel 8. A demolding seat 22 is fixedly connected to the end of the steel cable 9 away from the take-up wheel 8. By driving the threaded rod 5 to rotate and engage with the threaded sleeve 6, the mold clamping plate 10 at the bottom of the sliding table 3 can be moved laterally; at the same time, the take-up wheel 8 is rotated to wind or unwind the steel cable 9 on its surface. This allows the demolding base 22 to move up and down at the bottom of the sliding table 3, accurately bringing the mold clamping plate 10 close to the top of the concrete culvert mold for clamping, facilitating the quick hoisting and removal of the demolished mold.

[0032] refer to Figure 1 , Figure 2 Both columns 2 are fixedly equipped with casters 15 at their bottoms. On the opposite side of each caster 15, a threaded shaft 16 is threadedly connected to the column 2. A base plate 17 is welded to the bottom of the threaded shaft 16. This allows the beam 1 and columns 2 to move using the casters 15, while simultaneously rotating the threaded shaft 16 causes the base plate 17 to contact the ground, using friction to limit the movement of the beam 1 and columns 2.

[0033] refer to Figure 2 The bottom of the threaded rod 5 is equipped with a reinforcing rod 18 bolted to the crossbeam 1, and the threaded sleeve 6 is slidably sleeved with the surface of the reinforcing rod 18. This provides support and limits the sliding of the sliding table 3, improving the stability of left and right sliding.

[0034] refer to Figure 3 Both sides of the sliding table 3 are rotatably connected to rollers 19 that cooperate with the steel cable 9. These rollers are used to support and position the steel cable 9 and prevent wear caused by contact between the steel cable 9 and the sliding table 3.

[0035] refer to Figure 2 , Figure 4 Hydraulic cylinders 23 are bolted to both sides inside the demolding base 22, and demolding clamping plates 10 are bolted to the output ends of the two hydraulic cylinders 23 and slidably connected to the demolding base 22. By opening the hydraulic cylinders 23, the two demolding clamping plates 10 are driven to move closer to each other, so that when the demolding base 22 is lowered onto the concrete culvert mold by the steel cable 9, the concrete culvert mold is clamped and then lifted and moved away.

[0036] Brief description of the operation: By activating the first motor 4, the threaded rod 5 is rotated, causing it to engage with the threaded sleeve 6. This drives the sliding table 3 at the bottom of the threaded sleeve 6 to move laterally, moving the demolding seat 22 to the top of the mold. Simultaneously, during the lateral adjustment of the demolding seat 22, the second motor 7 can be activated to rotate the winding wheel 8 inside the sliding table 3, releasing the steel cable 9 on the rotating surface of the winding wheel 8. This allows the demolding seat 22 to move downwards accurately towards the top of the concrete culvert mold. Finally, the hydraulic cylinder 23 is activated to bring the two demolding clamps 10 closer together. As the demolding seat 22 descends onto the concrete culvert mold using the steel cable 9, the concrete culvert mold is clamped and then lifted and removed.

[0037] Example 2:

[0038] refer to Figure 1 , Figure 2 , Figure 3 A precast concrete culvert mold dismantling machine is disclosed. Trapezoidal blocks 14 are provided on both sides of the mold clamping plate 10. A movable plate 13 is bolted to the side of the two trapezoidal blocks 14 that is far apart from each other. Telescopic rods 11 are bolted to both sides of the bottom of the sliding table 3. Springs 12, respectively bolted to the sliding table 3 and the movable plate 13, are sleeved on the surface of the telescopic rods 11. The spring force of the springs 12 drives the trapezoidal blocks 14 to clamp the suspended concrete culvert mold. Thus, when the concrete culvert mold sways left and right during removal, part of the swaying force can be canceled out by the spring force, reducing the sway amplitude. This reduces the impact on the dismantling machine and improves the stability of the concrete culvert mold during hoisting.

[0039] refer to Figure 1 , Figure 2 The output end of the second motor 7 is also connected to a motor brake 20 that works in conjunction with the take-up reel 8. This brake is used to brake the output end of the second motor 7, thereby keeping the take-up reel 8 stationary inside the slide table 3.

[0040] refer to Figure 1 Both the crossbeam 1 and the sliding table 3 have inspection doors 21 bolted to their front sides. This allows for easy opening of the interior of the crossbeam 1 and the sliding table 3, enabling the maintenance and replacement of internal parts.

[0041] Brief description of the operation: After the concrete culvert mold is removed, it is hoisted onto the demolding base 22. The demolding base 22 moves up and down, clamping the mold and lifting it away. When the demolding base 22 lifts the mold to the bottom of the sliding table 3, the two sides of the mold press against the trapezoidal block 14, causing the moving plate 13 to open outwards against the elastic force of the spring 12. Simultaneously, the rebound force of the spring 12 drives the moving plate 13 to return to its original position, allowing the trapezoidal block 14 to clamp the two sides of the mold. Thus, when the concrete culvert mold sways left and right during removal, the trapezoidal block 14 overcomes the elastic force of the spring 12, partially canceling out the swaying force and reducing the amplitude of the sway, minimizing the impact on the demolding machine.

[0042] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0043] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A precast concrete culvert mold demolding machine, comprising a crossbeam (1), characterized in that: The bottom of the crossbeam (1) is bolted with columns (2) on both sides. The bottom of the crossbeam (1) is slidably connected with a sliding table (3). One end of the crossbeam (1) is bolted with a first motor (4). The output end of the first motor (4) is bolted with a threaded rod (5) rotatably connected to the crossbeam (1). The surface of the threaded rod (5) is threaded with a threaded sleeve (6) bolted to the top of the sliding table (3). One side of the sliding table (3) is bolted with a second motor (7). The output end of the second motor (7) is bolted with a take-up wheel (8) rotatably connected to the sliding table (3). The take-up wheel (8) is fixedly wound with a steel cable (9). The end of the steel cable (9) away from the take-up wheel (8) is fixedly connected with a demolding seat (22).

2. A precast concrete pipe culvert form stripping machine according to claim 1 wherein: Both sides of the demolding base (22) are provided with trapezoidal blocks (14), and a movable plate (13) is bolted to the side of the two trapezoidal blocks (14) that is far apart from each other. Both sides of the bottom of the sliding table (3) are bolted with telescopic rods (11), and springs (12) are respectively bolted to the sliding table (3) and the movable plate (13) on the surface of the telescopic rods (11).

3. A precast concrete pipe culvert form stripping machine according to claim 1 wherein: The bottom of each of the two columns (2) is fixedly equipped with a movable wheel (15), and a threaded shaft (16) that is threaded through and threaded to the column (2) is provided on the side of each of the two movable wheels (15) that is far away from each other. The bottom of the threaded shaft (16) is welded with a base plate (17).

4. A precast concrete pipe culvert form stripping machine according to claim 1 wherein: The bottom of the threaded rod (5) is provided with a reinforcing rod (18) bolted to the crossbeam (1), and the threaded sleeve (6) is slidably sleeved with the surface of the reinforcing rod (18).

5. A precast concrete pipe culvert form stripping machine according to claim 1 wherein: Both sides inside the sliding platform (3) are rotatably connected to rollers (19) that cooperate with the steel cable (9).

6. A precast concrete pipe culvert form stripping machine according to claim 1 wherein: The output end of the second motor (7) is also connected to a motor brake (20) that works in conjunction with the take-up reel (8).

7. A precast concrete pipe culvert form stripping machine according to claim 1 wherein: Inspection doors (21) are bolted to the front of both the crossbeam (1) and the sliding table (3).

8. A precast concrete pipe culvert form stripping machine according to claim 1 wherein: Hydraulic cylinders (23) are bolted to both sides inside the demolding base (22), and the output ends of the two hydraulic cylinders (23) are bolted to demolding clamps (10) that are slidably connected to the inside of the demolding base (22).

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