Precast concrete pile cap pouring device

Abstract

The invention relates to the technical field of pile cap pouring, in particular to a precast concrete pile cap pouring device. Comprising a supporting frame, a connecting block is arranged on the supporting frame, a discharging frame is arranged on the connecting block, a plurality of discharging openings are formed in the bottom of the discharging frame, a mold is arranged below the discharging frame, a servo motor is arranged in front of the connecting block, the servo motor is provided with a supporting shell, and an output shaft of the servo motor drives the connecting block to rotate through a conveying belt; the supporting shell and the supporting frame are connected in a sliding mode through a column body, and the multi-stage air cylinder is arranged on the supporting frame. The discharging frame is controlled to ascend for multiple times through a multi-stage air cylinder, and after the discharging frame ascends every time, part of racks and gears can be separated through cooperation of a rotating annular frame, a second wedge-shaped block, a first wedge-shaped block and the like, so that the rotating angle of a threaded rod is reduced, and the outward moving stroke of the discharging frame is shortened; and therefore, the conical mold can be uniformly poured.

Description

Technical Field

[0001] This invention relates to the field of pile cap casting technology, and in particular to a precast concrete pile cap casting device. Background Technology

[0002] Pile caps are typically welded to the pile head. When making pile caps, a mold is usually used. Precast concrete is poured into the mold for casting. At the start of production, the pile cap mold is placed on a flat surface, and the concrete outlet is moved above the mold. Then, the outlet is opened, and the concrete enters the mold. To improve the uniformity of concrete pouring, the outlet is usually driven to rotate along the inside of the mold, allowing the concrete to fall evenly into the mold. However, this method is suitable for conventional cylindrical molds. If the mold is conical, the opening at the top is narrower than the bottom, and the outlet is usually located directly above the mold. The size of the outlet must also match the opening at the top of the conical mold. As a result, the concrete falling into the mold can only reach the center, making it difficult for the concrete to fall evenly around the outer perimeter, leading to uneven pouring. Therefore, a precast concrete pile cap casting device has been developed. Summary of the Invention

[0003] The technical implementation of the present invention is as follows: a precast concrete pile cap casting device includes a support frame, a connecting block on the support frame, a discharge frame on the connecting block, multiple discharge ports at the bottom of the discharge frame, a mold below the discharge frame, a servo motor in front of the connecting block, a support shell for the servo motor, the output shaft of the servo motor driving the connecting block to rotate via a conveyor belt, the support shell being mounted on the support frame, and the support shell and the support frame being slidably connected by a column.

[0004] As a preferred technical solution of the present invention, it also includes a multi-stage cylinder, which is mounted on the support frame. The bottom of the telescopic rod of the multi-stage cylinder is fixedly connected to the connecting block. The telescopic rod of the multi-stage cylinder is rotatably connected to the support shell. A movable part is slidably connected to the connecting block. The movable part is fixedly connected to the discharge frame. The connecting block is controlled to descend by the multi-stage cylinder, which drives the discharge frame to descend and move into the lower part of the mold, so that the concrete will fill the mold evenly.

[0005] As a preferred embodiment of the present invention, it further includes a threaded rod, which is rotatably connected inside the connecting block. The threaded rod and the moving part are threadedly connected. A gear is fixedly connected to the end of the threaded rod. A fixed ring frame is fixedly connected to the outside of the support shell. The fixed ring frame is sleeved on the outside of the connecting block. Three sets of racks are provided on both the upper and lower sides of the fixed ring frame. The gears and racks mesh. When the connecting block rotates, it will drive the threaded rod and the gears to rotate. After the gears and racks mesh, the gears will rotate in both directions. The gears drive the threaded rod to rotate in both directions, thereby driving the connecting block and the discharge frame to move in and out of the circulation to achieve the purpose of uniform casting.

[0006] As a preferred embodiment of the present invention, the rack assembly consists of three racks. A first spring connects the racks and the fixed ring frame. A first wedge block is fixedly connected to the outside of the racks. A rotating ring frame is rotatably connected to the outside of the fixed ring frame. A second wedge block is fixedly connected to the rotating ring frame near the rack assembly. The second wedge block and the first wedge block are in a pressing fit. When the discharge frame moves to the conical position of the mold, the rotating ring frame rotates to drive the second wedge block to rotate and press the first wedge block. This can gradually reduce the number of meshing between the racks and gears, and also gradually shorten the outward movement of the discharge frame to adapt to the shape of the mold.

[0007] As a preferred embodiment of the present invention, it further includes cylinders, which are symmetrically arranged and fixedly connected to the side of the rotating ring frame away from the second wedge block. The support frame is provided with an arc-shaped plate, and the side of the arc-shaped plate near the cylinder is provided with a track, and the cylinder and the track cooperate.

[0008] As a preferred technical solution of the present invention, the track consists of two vertical rails and one inclined rail. The inclined rail is set on the side of the arc-shaped plate near the cylinder. The vertical rails are connected to both sides of the inclined rail. When the rotating ring frame drives the cylinder to rise and fall, the cylinder and the track cooperate with each other, so that the cylinder drives the rotating ring frame to rotate automatically, thereby achieving the effect of driving the rack to retract.

[0009] As a preferred embodiment of the present invention, it further includes a feed pipe connected to the side of the connecting block away from the gear, the feed pipe extending below into the discharge frame, and a rotating disk rotatably connected to the bottom of the support shell, the bottom left side of the rotating disk communicating with the feed pipe.

[0010] As a preferred embodiment of the present invention, it further includes a stirring rod, with multiple stirring rods disposed on the top of the inclined guide block. The stirring rods and the inclined guide block are rotatably connected, and a cross block is connected to the top of the stirring rod. A ring plate with a block is provided at the top of the support shell. The ring plate with the block and the cross block are engaged. When the rotating disk rotates, it drives the stirring rod to revolve. The revolve of the stirring rod drives the cross block to rotate. Under the action of the ring plate with the block, the cross block will rotate on its own axis. The rotation of the cross block will drive the stirring rod to rotate and stir the concrete, preventing the concrete from solidifying and accelerating the concrete falling.

[0011] The present invention has the following advantages: 1. The present invention controls the discharge frame to rise multiple times through multi-stage cylinders. After each rise of the discharge frame, the rotation of the ring frame, the second wedge block, the first wedge block, etc. can separate part of the rack and gear, thereby reducing the rotation angle of the threaded rod and shortening the outward movement of the discharge frame, so as to uniformly cast the conical mold.

[0012] 2. Through the cooperation between the cylinder and the track, the present invention can automatically drive the rotating ring frame to rotate. The rotating ring frame drives the second wedge block to squeeze the first wedge block, thereby automatically moving the rack assembly out of or into the fixed ring frame, so as to gradually adjust the outward movement of the discharge frame.

[0013] 3. In this invention, the rotating disc drives the stirring rod to revolve, which in turn drives the cross block to rotate. Under the action of the ring plate, the cross block rotates on its own axis, which in turn drives the stirring rod to rotate and stir the concrete, preventing it from solidifying and accelerating its descent. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a partial three-dimensional structural cross-sectional view of the present invention.

[0016] Figure 3 For the present invention Figure 2 A schematic diagram of the three-dimensional structure of part A.

[0017] Figure 4 This is a three-dimensional structural diagram of the second wedge block, rotating ring frame, and cylinder components of the present invention.

[0018] The meanings of the reference numerals in the figure are as follows: 1: Support frame, 101: Support shell, 2: Connecting block, 3: Discharge frame, 4: Mold, 5: Servo motor, 6: Multi-stage cylinder, 7: Moving part, 8: Threaded rod, 9: Gear, 10: Fixed ring frame, 11: Rack and pinion assembly, 12: First spring, 13: First wedge block, 14: Second wedge block, 15: Rotating ring frame, 16: Cylinder, 17: Arc-shaped plate, 18: Track, 19: Feed pipe, 20: Rotary disk, 21: Feed pipe, 22: Angled guide block, 23: Stirring rod, 24: Ring plate with block, 25: Cross block. Detailed Implementation

[0019] References to embodiments herein mean that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0020] A precast concrete pile cap casting device, such as Figure 1 As shown, it includes a support frame 1, a connecting block 2 on the support frame 1, a discharge frame 3 on the connecting block 2, multiple discharge ports at the bottom of the discharge frame 3, a mold 4 below the discharge frame 3, a servo motor 5 in front of the connecting block 2, a support shell 101 on the servo motor 5, and the output shaft of the servo motor 5 drives the connecting block 2 to rotate through a conveyor belt. The support shell 101 is mounted on the support frame 1, and the support shell 101 and the support frame 1 are connected by a column sliding connection.

[0021] When pouring the pile cap, the mold 4 is placed directly below the discharge frame 3. The concrete is poured into the discharge frame 3 and falls into the mold 4 through the discharge port of the discharge frame 3. At the same time, the servo motor 5 is turned on, which can drive the discharge frame 3 to rotate and discharge the concrete. This allows the concrete to fall evenly into the mold 4 for pouring and shaping.

[0022] However, as described in the background art, the above method is applicable to conventional cylindrical molds 4. If the mold 4 is conical, the opening at the top of the conical mold 4 is relatively narrow, while the opening at the bottom is relatively wide. Concrete falling into the mold 4 can only fall into the middle of the mold 4, making it difficult for the concrete to fall evenly into the outer perimeter of the mold 4. This will also cause uneven pouring. Therefore, this embodiment adopts the following solution:

[0023] like Figure 1 As shown, a multi-stage cylinder 6 is provided on the support frame 1. The bottom of the telescopic rod of the multi-stage cylinder 6 is fixedly connected to the connecting block 2. The telescopic rod of the multi-stage cylinder 6 is rotatably connected to the support shell 101. A movable part 7 is slidably connected to the connecting block 2. The movable part 7 is fixedly connected to the discharge frame 3.

[0024] Before concrete pouring, the extension rod of the multi-stage cylinder 6 is controlled to drive the connecting block 2 and the discharge frame 3 to descend. After the discharge frame 3 enters the lower position inside the mold 4, the multi-stage cylinder 6 is stopped, the servo motor 5 is turned on, the discharge port is opened, and a pushing component is used to push the discharge frame 3 to move left and right. When the discharge frame 3 moves to the left limit, the discharge port of the discharge frame 3 is close to the periphery of the inner wall of the mold 4. When the discharge frame 3 moves to the right limit, the discharge frame 3 is in the middle position of the mold 4. During the left and right movement and rotation of the discharge frame 3, the concrete can be poured evenly in various positions inside the mold 4, which can overcome the problem of uneven pouring.

[0025] like Figure 2 As shown, the pushing component includes a threaded rod 8, which is rotatably connected inside the connecting block 2. The threaded rod 8 and the moving part 7 are threadedly connected. A gear 9 is fixedly connected to the end of the threaded rod 8. A fixed ring frame 10 is fixedly connected to the outside of the support shell 101. The fixed ring frame 10 is sleeved on the outside of the connecting block 2. Three sets of rack groups 11 are provided on both the upper and lower sides of the fixed ring frame 10. The rack groups 11 on the upper and lower sides are staggered, for a total of six rack groups 11. The six rack groups 11 form a ring rack. The gear 9 meshes with the rack group 11.

[0026] When the connecting block 2 rotates, it will drive the moving part 7, the discharge frame 3, the threaded rod 8, and the gear 9 to rotate as well. When the gear 9 meshes with the rack set 11 above, the gear 9 will rotate forward. The forward rotation of the gear 9 will drive the threaded rod 8 to rotate, and the threaded rod 8 will drive the moving part 7 and the discharge frame 3 to move outward. When the gear 9 meshes with the rack set 11 below, the gear 9 will rotate in reverse, thereby driving the moving part 7 to move inward and reset. In this way, by rotating the connecting block 2, the moving part 7 and the discharge frame 3 can move inward and outward continuously to achieve the purpose of uniform pouring.

[0027] When the multi-stage cylinder 6 controls the discharge frame 3 to rise, if the rack assembly 11 and gear 9 are still engaged, the outward stroke of the discharge frame 3 cannot be changed. Therefore, when the discharge frame 3 rises to the conical position of the mold 4, the space above the mold 4 becomes increasingly smaller, and the outward movement of the discharge frame 3 will cause it to collide with the interior of the mold 4. Therefore, in this embodiment, the outward stroke of the discharge frame 3 needs to be adjusted when it rises. The specific implementation method is as follows:

[0028] like Figure 2 As shown, the rack assembly 11 consists of three racks. A first spring 12 is connected between the racks and the fixed ring frame 10. A first wedge block 13 is fixedly connected to the outside of the racks. A rotating ring frame 15 is rotatably connected to the outside of the fixed ring frame 10. A second wedge block 14 is fixedly connected to the side of the rotating ring frame 15 near the rack assembly 11. The second wedge block 14 and the first wedge block 13 are in a pressing fit.

[0029] When the discharge frame 3 is at its highest position, the rack assembly 11 is inside the fixed ring frame 10, and the rack assembly 11 and gear 9 are not engaged. When the multi-stage cylinder 6 controls the descent to the lower position inside the mold 4, a drive assembly can rotate the ring frame 15 clockwise. The clockwise rotation of the ring frame 15 drives the second wedge block 14 to rotate clockwise. When the second wedge block 14 contacts the first wedge block 13, it drives the first wedge block 13 to move towards the gear 9, while simultaneously moving the rack out of the fixed ring frame 10. When the second wedge block 14 squeezes all the first wedge blocks 13, it causes all the racks to move out of the fixed ring frame 10, and the first spring 12 is compressed. Thus, all the racks and gear 9 are engaged. After the lower part of the mold 4 is poured, the discharge frame 3 is raised a certain distance by the multi-stage cylinder 6, and the multi-stage cylinder 6 is stopped. At this time, people can... A drive assembly drives the rotating ring frame 15 to rotate clockwise. The counterclockwise rotation of the rotating ring frame 15 drives the second wedge block 14. When the second wedge block 14 separates from the first wedge block 13, the first spring 12 drives the first rack and the first wedge block 13 to move and retract into the fixed ring frame 10. The first rack then separates from the gear 9. As a result, the angle of rotation of the threaded rod 8 driven by the gear 9 is smaller, and the stroke of the moving part 7 and the discharge frame 3 moving outward is shortened. While the multi-stage cylinder 6 continues to control the discharge frame 3 to rise, the drive assembly continues to control the rotating ring frame 15 and the second wedge block 14 to rotate counterclockwise, so that the second rack and the third rack separate from the gear 9 in sequence. As the discharge frame 3 rises three times, the stroke of the discharge frame 3 moving outward is shortened three times. In this way, the discharge area of ​​the discharge frame 3 is gradually reduced according to the conical mold 4 to achieve the purpose of uniform casting.

[0030] like Figure 4 As shown, the drive assembly includes a cylinder 16. The symmetrically arranged cylinders 16 are fixedly connected to the rotating ring frame 15 on the side away from the second wedge block 14. The support frame 1 is provided with an arc-shaped plate 17. The arc-shaped plate 17 is provided with a track 18 on the side near the cylinder 16. The cylinder 16 and the track 18 cooperate. The track 18 consists of two vertical rails and one inclined rail. The inclined rail is provided on the side of the arc-shaped plate 17 near the cylinder 16. The vertical rails are connected to both sides of the inclined rail.

[0031] When the multi-stage cylinder 6 controls the connecting block 2 and the discharge frame 3 to descend, the multi-stage cylinder 6 simultaneously drives the support shell 101, the fixed ring frame 10, and the rotating ring frame 15 to descend. When the rotating ring frame 15 descends, it drives the cylinder 16 to descend. When the cylinder 16 enters the vertical rail and moves to the inclined rail, the inclined rail drives the cylinder 16 to rotate. The cylinder 16 then drives the rotating ring frame 15 to rotate clockwise, thereby causing the rack assembly 11 to move out of the fixed ring frame 10 and mesh with the gear 9. When the multi-stage cylinder 6 controls the connecting block 2 and the discharge frame 3 to rise, the multi-stage cylinder 6 simultaneously drives the support shell 101, the fixed ring frame 10, and the rotating ring frame 15 to rise. When the rotating ring frame 15 rises, it drives the cylinder 16 to rise. After the cylinder 16 contacts the inclined rail again, it causes the cylinder 16 to rotate counterclockwise. The cylinder 16 drives the rotating ring frame 15 to rotate counterclockwise, thereby causing the rack assembly 11 to retract into the fixed ring frame 10, thus separating the rack and the gear 9.

[0032] Since the discharge frame 3 is located below the connecting block 2, and the discharge frame 3 will descend and move into the mold 4 for pouring, the concrete stored inside the discharge frame 3 alone is not enough to pour the entire mold 4. Therefore, it is necessary to add concrete inside the discharge frame 3. Thus, the following solution is adopted in this embodiment:

[0033] like Figure 2 As shown, the connecting block 2 is connected to the feed pipe 19 on the side away from the gear 9. The feed pipe 19 extends into the discharge frame 3. The bottom of the support shell 101 is rotatably connected to the rotating disk 20. The bottom left side of the rotating disk 20 is connected to the feed pipe 19. The top of the support shell 101 is connected to the feed pipe 21. The feed pipe 21 can be connected to an external feeding device. The external feeding device can pour concrete into the support shell 101 through the feed pipe 21, and then pour it into the discharge frame 3 through the feed pipe 19.

[0034] In addition, such as Figure 2 As shown, an inclined guide block 22 is fixedly connected to the top of the rotating disk 20. When the concrete falls into the support shell 101, it will fall onto the inclined guide block 22. The concrete will flow towards the feed pipe 19 through the inclined guide block 22, which can speed up the falling of the concrete.

[0035] After the concrete falls into the support shell 101, in order to prevent the concrete from hardening and to accelerate the falling of the concrete, the following solution is adopted in this embodiment:

[0036] like Figure 2 As shown, the top of the inclined guide block 22 is rotatably connected to multiple stirring rods 23, and the top of the stirring rods 23 is connected to a cross block 25. The top of the support shell 101 is provided with a ring plate 24 with blocks, and the ring plate 24 and the cross block 25 are engaged.

[0037] When the connecting block 2 rotates, it will drive the feed pipe 19 to rotate. The rotation of the feed pipe 19 will drive the rotating disk 20 to rotate. The rotation of the rotating disk 20 will drive the mixing rod 23 to revolve. The revolve of the mixing rod 23 will drive the cross block 25 to rotate. Under the action of the ring plate 24, the cross block 25 will rotate on its own axis. The rotation of the cross block 25 will drive the mixing rod 23 to rotate and mix the concrete, prevent the concrete from solidifying, and speed up the concrete falling.

[0038] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Therefore, all equivalent changes made to the content described in the claims of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A precast concrete pile cap casting device, comprising a support frame (1), a connecting block (2) on the support frame (1), a discharge frame (3) on the connecting block (2), a plurality of discharge ports at the bottom of the discharge frame (3), and a mold (4) below the discharge frame (3), characterized in that: A servo motor (5) is installed in front of the connecting block (2). The servo motor (5) is equipped with a support shell (101). The output shaft of the servo motor (5) drives the connecting block (2) to rotate through the conveyor belt. The support shell (101) is installed on the support frame (1). The support shell (101) and the support frame (1) are connected by a column sliding connection.

2. The precast concrete pile cap casting device according to claim 1, characterized in that: It also includes a multi-stage cylinder (6), which is mounted on the support frame (1). The bottom of the telescopic rod of the multi-stage cylinder (6) is fixedly connected to the connecting block (2). The telescopic rod of the multi-stage cylinder (6) is rotatably connected to the support shell (101). A sliding movable part (7) is connected to the connecting block (2). The movable part (7) is fixedly connected to the discharge frame (3).

3. A precast concrete pile cap casting device according to claim 2, characterized in that: It also includes a threaded rod (8), which is rotatably connected inside the connecting block (2). The threaded rod (8) and the moving part (7) are threadedly connected. A gear (9) is fixedly connected to the end of the threaded rod (8). A fixed ring frame (10) is fixedly connected to the outside of the support shell (101). The fixed ring frame (10) is sleeved on the outside of the connecting block (2). Three sets of rack sets (11) are provided on both the upper and lower sides of the fixed ring frame (10). The gear (9) and the rack set (11) mesh.

4. A precast concrete pile cap casting device according to claim 3, characterized in that: a rack and pinion. The assembly (11) consists of three racks. A first spring (12) is connected between the racks and the fixed ring frame (10). A first wedge block (13) is fixedly connected to the outside of the racks. A rotating ring frame (15) is rotatably connected to the outside of the fixed ring frame (10). A second wedge block (14) is fixedly connected to the side of the rotating ring frame (15) near the rack assembly (11). The second wedge block (14) and the first wedge block (13) are in a pressing fit.

5. A precast concrete pile cap casting device according to claim 4, characterized in that: It also includes a cylinder (16), which is symmetrically arranged and fixedly connected to the rotating ring frame (15) on the side away from the second wedge block (14). The support frame (1) is provided with an arc-shaped plate (17), and the arc-shaped plate (17) is provided with a track (18) on the side close to the cylinder (16). The cylinder (16) and the track (18) cooperate.

6. A precast concrete pile cap casting device according to claim 5, characterized in that: The track (18) consists of two vertical rails and one inclined rail. The inclined rail is set on the side of the arc plate (17) near the cylinder (16), and the vertical rails are connected on both sides of the inclined rail.

7. A precast concrete pile cap casting device according to claim 6, characterized in that: It also includes a feed pipe (19), which is connected to the side of the connecting block (2) away from the gear (9). The feed pipe (19) extends into the discharge frame (3) below. The bottom of the support shell (101) is rotatably connected to a rotating disk (20), and the bottom left side of the rotating disk (20) is connected to the feed pipe (19).

8. A precast concrete pile cap casting device according to claim 7, characterized in that: It also includes a stirring rod (23), multiple stirring rods (23) are set on the top of the inclined guide block (22), the stirring rod (23) and the inclined guide block (22) are rotatably connected, the top of the stirring rod (23) is connected to a cross block (25), and the top of the support shell (101) is provided with a ring plate (24) with a block, the ring plate (24) and the cross block (25) are engaged.

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