Centrifugal forming machine for tubular pile
By introducing anti-detachment components at the head and tail of the centrifugal pipe pile molding machine, the mold closing is stabilized, and the cement setting is accelerated by using a circulating fan and water glass. This solves the problems of low equipment safety and molding efficiency, and improves both safety and efficiency.
Patent Information
- Application Number
- CN202520219809.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-02-12
AI Technical Summary
Existing centrifugal pipe pile molding machines are prone to safety accidents when rotating at high speeds due to unreasonable structural design, insufficient material strength, or improper operation, and have low molding efficiency.
It employs anti-derailment components at the head and tail, stabilizes mold closing through a lateral movement motor and electric push rod, accelerates cement setting by combining a circulating fan, atomizing device and water glass storage tank, and uses bolts to lock the steel cage to prevent derailment.
It improves the safety of equipment operation, prevents mold derailment, enhances equipment stability, and increases molding efficiency by accelerating cement setting speed.
Smart Images

Figure CN223933866U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe pile production technology, specifically a pipe pile centrifugal molding machine. Background Technology
[0002] Cement pipe piles primarily belong to the fields of building engineering and infrastructure construction. In the construction of industrial buildings such as factories and warehouses, cement pipe piles are often used as foundation structures to bear the weight of the building and ensure its stability under various loads. They can effectively cope with different geological conditions, providing a fundamental guarantee for the long-term stable operation of industrial facilities. Whether it's multi-story or high-rise residential buildings, or civil buildings such as commercial complexes and office buildings, cement pipe piles are widely used in foundation engineering. They can transfer the building's load to deep, stable foundation soil layers, improving the foundation's bearing capacity, reducing building settlement, and ensuring the safety of residents and users.
[0003] A centrifugal molding machine for pipe piles is a device used to produce prestressed concrete pipe piles. The power of the electric motor is transmitted to the drive wheel through belt drive. The friction between the drive wheel and the running wheel of the steel mold drives the steel mold to rotate. When the steel mold starts to rotate, the concrete material inside is squeezed against the mold wall under the action of centrifugal force. Excess air and moisture in the concrete are discharged, making the concrete denser, thereby improving the strength and quality of the pipe pile. The centrifugal molding process usually includes three stages: low speed, medium speed, and high speed.
[0004] When the equipment rotates at high speed, it generates huge centrifugal force. If the equipment has an unreasonable structural design, insufficient material strength, or is operated improperly, it may cause unstable operation and safety accidents such as explosion, flying parts, and mold derailment, which may cause serious injury and loss to operators and surrounding equipment. Therefore, existing technologies have been improved. Utility Model Content
[0005] The purpose of this utility model is to provide a centrifugal forming machine for pipe piles to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A centrifugal forming machine for pipe piles includes a mold, two centrifugal drive rollers, a transmission box, and a drive motor. One end of the centrifugal drive rollers is connected to the drive motor through the transmission box. The mold is set on the two centrifugal drive rollers. The rotation of the two centrifugal drive rollers drives the mold to rotate. A head anti-detachment component and a tail anti-detachment component are respectively provided on both sides of the mold. The head anti-detachment component and the tail anti-detachment component have the same structure.
[0008] The head anti-detachment component includes a fixed base, a lateral movement motor, a movable base, a clamp, an air tube, a roller, an electric push rod, a threaded ring, and a lead screw. The fixed base has a movable base that can slide horizontally on its top. An electric push rod is installed inside the movable base. An air tube is installed on the top of the electric push rod through the clamp. A roller is installed at one end of the air tube. The fixed base has a lateral movement motor inside. A lead screw is installed at the output end of the lateral movement motor. A threaded ring that is threadedly connected to the lead screw is installed at the bottom of the movable base.
[0009] As a further improvement of this utility model: both ends of the lead screw are rotatably connected to the fixed seat through bearings, and the fixed seat is fixed to the ground in contact with the ground.
[0010] As a further embodiment of this utility model: the air pipe of the head anti-detachment component is connected to the air pipe of the tail anti-detachment component through a circulation pipeline. A circulation fan is provided on the circulation pipeline, and an atomizing pipeline is provided on the circulation pipeline through a Venturi jet. An atomizing device and a water glass storage tank are connected on the atomizing pipeline.
[0011] As a further embodiment of this utility model: the mold consists of an upper mold and a lower mold, which are fixed together by bolts, and a steel cage is assembled inside the upper mold and the lower mold.
[0012] As a further embodiment of this utility model: end plates are provided on both sides of the steel cage, and support plates are fixed on the end plates. Bolt seats are provided on the upper mold and the lower mold. The bolt seats are threadedly connected to the support plates by bolts to lock and straighten the steel cage.
[0013] As a further improvement of this utility model: a circular roller core is provided inside the bolt seat, and the roller moves into the circular roller core, applying downward pressure and controlling the stability of mold closing through the bolt seat.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. This centrifugal forming machine for pipe piles uses a transverse moving motor to drive the moving seat to move the roller into the mold. The electric push rod retracts to move the roller downward. The roller applies a downward force to the mold, thereby preventing the mold from derailing and improving the operating safety of the equipment.
[0016] 2. This centrifugal pipe pile molding machine is equipped with a circulating fan, an atomizing device, and a water glass storage tank. During the circulating airflow process of the circulating fan, the water glass in the water glass storage tank is drawn by a liquid pump, atomized, and then sent into the airflow through a Venturi jet, thereby distributing it into the mold and accelerating the molding speed of the pipe pile. Water glass is blown in during the pipe pile molding process or in the initial molding stage to improve molding efficiency. Attached Figure Description
[0017] Figure 1 A three-dimensional structural view of a centrifugal forming machine for pipe piles;
[0018] Figure 2 This is a schematic diagram of the structure of a centrifugal forming machine for pipe piles;
[0019] Figure 3 An exploded view of the structure of a centrifugal forming machine for pipe piles;
[0020] Figure 4 A three-dimensional structural view of a head anti-detachment component in a centrifugal pipe pile molding machine;
[0021] Figure 5 Left view of the structure of a head anti-detachment component in a centrifugal pipe pile molding machine;
[0022] Figure 6 This is a front view of the structure of a head anti-detachment component in a centrifugal pipe pile molding machine.
[0023] In the diagram: 1. Mold closing; 101. Upper mold; 102. Lower mold; 103. Bolt seat; 2. Centrifugal drive roller; 3. Transmission box; 4. Drive motor; 5. Head anti-detachment component; 501. Fixed seat; 502. Lateral movement motor; 503. Moving seat; 504. Hoop ring; 505. Air pipe; 506. Roller; 507. Electric push rod; 508. Threaded ring; 509. Bearing; 510. Lead screw; 6. Tail anti-detachment component; 7. Support plate; 8. Reinforcing cage; 9. Venturi jet injector; 10. Atomizing device; 11. Circulating fan; 12. Water glass storage tank. Detailed Implementation
[0024] Please see Figures 1-6 In this embodiment of the utility model, a centrifugal forming machine for pipe piles includes a mold 1, two centrifugal drive rollers 2, a transmission box 3, and a drive motor 4. One end of the centrifugal drive roller 2 is connected to the drive motor 4 through the transmission box 3. The mold 1 is set on the two centrifugal drive rollers 2. The rotation of the two centrifugal drive rollers 2 drives the mold 1 to rotate. A head anti-detachment component 5 and a tail anti-detachment component 6 are respectively provided on both sides of the mold 1. The head anti-detachment component 5 and the tail anti-detachment component 6 have the same structure.
[0025] The head anti-detachment component 5 includes a fixed base 501, a horizontal movement motor 502, a movable base 503, a clamp 504, an air hose 505, a roller 506, an electric push rod 507, a threaded ring 508, and a lead screw 510. The movable base 503, which can slide horizontally, is mounted on the top of the fixed base 501. The electric push rod 507 is housed inside the movable base 503. The air hose 505 is mounted on the top of the electric push rod 507 via the clamp 504. A roller 506 is attached to one end of the air hose 505. The horizontal movement motor 502 is housed inside the fixed base 501. A lead screw 510 is mounted on the output end of the horizontal movement motor 502. A screw threadedly connected to the lead screw 510 is mounted on the bottom of the movable base 503. The threaded ring 508 and bolt seat 103 have a circular roller core inside. The roller 506 moves into the circular roller core and applies downward pressure. The bolt seat 103 controls the stability of the mold closing 1. The mold closing 1 is hoisted onto the centrifugal drive roller 2 by a crane. The transverse movement motor 502 is driven to rotate by the lead screw 510. The rotation of the lead screw 510 causes the threaded ring 508 to move the moving seat 503, thereby moving the roller 506 towards the mold closing 1 and allowing the roller 506 to engage in the circular roller core of the mold closing 1. The electric push rod 507 retracts to make the roller 506 contact the circular roller core, applying a downward force to the mold closing 1 to achieve three-point fixation, prevent the mold closing 1 from derailing, and improve the operating safety of the equipment.
[0026] In a preferred embodiment, both ends of the lead screw 510 are rotatably connected to the fixed seat 501 via bearings 509. The fixed seat 501 is fixed to the ground in contact with the ground. The bearings 509 are fixed by the lead screw 510. The rotation of the lead screw 510 causes the threaded ring 508 to move, thereby improving the stability of the rotation of the lead screw 510.
[0027] In a preferred embodiment, the air pipe 505 of the head anti-detachment component 5 is connected to the air pipe 505 of the tail anti-detachment component 6 via a circulation pipeline. A circulation fan 11 is installed on the circulation pipeline, and an atomizing pipeline is installed through the Venturi jet 9. The atomizing pipeline is connected to the atomizing device 10 and the water glass storage tank 12. The water glass can react with the calcium hydroxide produced during cement hydration to generate calcium silicate gel and other substances. These reaction products can fill the pores of cement stone, accelerate the cement setting and hardening process, and significantly shorten the initial and final setting times of cement. In some engineering scenarios that require rapid solidification, such as shotcrete in tunnel construction and emergency repair projects, this property of water glass is often used to accelerate the setting speed of cement and improve construction efficiency. Therefore, water glass is drawn by a liquid pump and atomized in the atomizing device 10. The airflow input by the circulation fan 11 enters the Venturi jet 9 and is blown out through the air pipe 505, contacting the cement and accelerating the cement forming speed.
[0028] In a preferred embodiment, the mold 1 consists of an upper mold 101 and a lower mold 102, which are fixed together by bolts. A reinforcing cage 8 is assembled inside the upper mold 101 and the lower mold 102. End plates are provided on both sides of the reinforcing cage 8, and support plates 7 are fixed on the end plates. Bolt seats 103 are provided on the upper mold 101 and the lower mold 102. The bolt seats 103 are threadedly connected to the support plates 7 by bolts to lock and straighten the reinforcing cage 8. During the bolt locking process, the reinforcing cage 8 is tensioned and straightened to prevent the reinforcing cage 8 from bending under gravity and affecting the rigidity of the formed pipe pile.
[0029] It should be noted that all the above embodiments belong to the same utility model concept, and the descriptions of each embodiment have different focuses. Where the description in a particular embodiment is not detailed, please refer to the description in other embodiments.
[0030] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A centrifugal forming machine for pipe piles, comprising a mold (1), two centrifugal drive rollers (2), a transmission box (3), and a drive motor (4), wherein one end of each centrifugal drive roller (2) is connected to the drive motor (4) via the transmission box (3), the mold (1) is mounted on the two centrifugal drive rollers (2), and the rotation of the two centrifugal drive rollers (2) drives the mold (1) to rotate, characterized in that, The mold (1) is provided with a head anti-detachment component (5) and a tail anti-detachment component (6) on both sides, and the head anti-detachment component (5) and the tail anti-detachment component (6) have the same structure. The head anti-detachment component (5) includes a fixed base (501), a horizontal movement motor (502), a movable base (503), a clamp (504), an air pipe (505), a roller (506), an electric push rod (507), a threaded ring (508), and a lead screw (510). The fixed base (501) has a movable base (503) that can slide horizontally installed on its top. The movable base (503) is equipped with an electric push rod (507). The top of the electric push rod (507) is equipped with an air pipe (505) through a clamp (504). One end of the air pipe (505) is equipped with a roller (506). The fixed base (501) has a horizontal movement motor (502) installed inside. The output end of the horizontal movement motor (502) is equipped with a lead screw (510). The bottom of the movable base (503) is equipped with a threaded ring (508) that is threadedly connected to the lead screw (510).
2. The centrifugal forming machine for pipe piles according to claim 1, characterized in that, Both ends of the lead screw (510) are rotatably connected to the fixed seat (501) via bearings (509), and the fixed seat (501) is fixed to the ground in contact with the ground.
3. A centrifugal forming machine for pipe piles according to claim 1 or 2, characterized in that, The air pipe (505) of the head anti-detachment component (5) is connected to the air pipe (505) of the tail anti-detachment component (6) through a circulation pipeline. A circulation fan (11) is installed on the circulation pipeline. An atomizing pipeline is installed on the circulation pipeline through a Venturi jet (9). An atomizing device (10) and a water glass storage tank (12) are connected on the atomizing pipeline.
4. The centrifugal forming machine for pipe piles according to claim 1, characterized in that, The mold (1) consists of an upper mold (101) and a lower mold (102). The upper mold (101) and the lower mold (102) are fixed together by bolts. The upper mold (101) and the lower mold (102) are fitted with steel cages (8).
5. A centrifugal forming machine for pipe piles according to claim 4, characterized in that, The steel cage (8) is provided with end plates on both sides, and a support plate (7) is fixed on the end plates. Bolt seats (103) are provided on the upper mold (101) and the lower mold (102). The bolt seats (103) are threadedly connected to the support plate (7) by bolts to lock and straighten the steel cage (8).
6. A centrifugal forming machine for pipe piles according to claim 5, characterized in that, The bolt seat (103) has a circular roller core inside. The roller (506) moves into the circular roller core and applies downward pressure to control the stability of the mold closing (1) through the bolt seat (103).