A cement pole forming mold

Abstract

The present application relates to a kind of cement pole forming mould, including the mould shell that can be separated up and down, the inside installation of mould shell is provided with shaping cage, the both ends of mould shell are provided with locking mechanism, the outside of locking mechanism is also provided with running wheel, the center of mould shell is fixedly connected with inner core, and the locking mechanism includes mounting plate, the inner circle of mounting plate is fixedly connected in the outside of inner core, the inside of mounting plate is rotatably connected with driving gear ring and multiple transmission gear rings, multiple transmission gear rings outside is in the shape of a triangle and is distributed in the inside of mounting plate, and the outside of transmission gear ring is engaged with the inside of driving gear ring, the inside of transmission gear ring is slidably connected with multiple locking rings, and the inside of locking ring is distributed with lock tooth along the inside of circle side circle, the present application realizes the beneficial effect that shaping cage and reinforcement framework are accurately positioned and firmly locked, solves the pain point that traditional mould reinforcement is easy to deviate and positioning precision is poor, improves the uniformity of pole reinforcement protection layer thickness, reduces the defect rate such as exposed reinforcement.

Description

Technical Field

[0001] This invention relates to the field of cement pole production mold technology, specifically a cement pole forming mold. Background Technology

[0002] Circular concrete poles, with their advantages of high structural strength, long service life, and low maintenance costs, are widely used in urban and rural power transmission and distribution, communication signal transmission, and municipal lighting projects in China, serving as an indispensable core support component in overhead line projects. Centrifugal molding is currently the mainstream molding process for the industrialized and large-scale production of circular concrete poles. The pole molding mold is the core specialized tooling in this process, determining the pole's shape accuracy, structural strength, and finished product qualification rate. Its positioning and locking performance for the reinforcing steel frame directly affects the pole's core mechanical properties such as crack resistance and bending strength, as well as production stability.

[0003] The existing centrifugal forming molds used for the production of ring concrete poles typically involve first hoisting the tied steel reinforcement cage into the cavity of the lower half of the mold during production, then closing and locking the upper and lower molds together. The steel reinforcement cage is simply axially limited by the end flanges at both ends of the mold, and then hoisted to a centrifuge to complete the centrifugal forming operation.

[0004] During the high-speed rotation of the existing mold in centrifugal forming, the steel reinforcement skeleton inside the mold is prone to radial displacement and circumferential movement under alternating centrifugal loads. This directly leads to irreversible defects such as uneven thickness of the steel reinforcement protective layer and local exposed reinforcement, resulting in a high rate of defective products. It is impossible to achieve precise positioning and secure locking of the steel reinforcement skeleton in the mold, which seriously affects the finished product quality and production efficiency of the poles. Summary of the Invention

[0005] The purpose of this invention is to provide a cement pole forming mold, which aims to improve the problem in the prior art that the steel reinforcement skeleton is easily subjected to alternating centrifugal loads and causes radial displacement and circumferential movement during the high-speed rotation of the mold in centrifugal forming.

[0006] The objective of this invention is achieved through the following technical solution: a cement pole forming mold, comprising a mold shell that can be separated into upper and lower parts, a shaping cage installed inside the mold shell, locking mechanisms provided at both ends of the mold shell, running wheels provided on the outer side of the locking mechanisms, and an inner core fixedly connected to the center of the mold shell; The locking mechanism includes a mounting plate, the inner circle of which is fixedly connected to the outer side of the inner core. A drive gear ring and multiple transmission gear rings are rotatably connected to the inner side of the mounting plate. The outer sides of the multiple transmission gear rings are arranged in a triangular pattern on the inner side of the mounting plate, and the outer sides of the transmission gear rings mesh with the inner sides of the drive gear rings. Multiple locking rings are slidably connected to the inner side of the transmission gear rings. Locking teeth are distributed along the circumference of the inner circle of the locking rings. A limiting protrusion is provided on one side of the locking ring, and a limiting groove for sliding of the limiting protrusion is provided on the mounting plate. As a further description of the above technical solution: The inner side of the transmission gear ring is provided with three protrusions. The apex of the protrusions abuts against the outer side of the locking ring, and the distance between the three protrusions is the same as the circumferential length of the three locking rings. The locking teeth on the outer side of the locking ring are made of sintered neodymium iron boron material, and the magnetism of the locking teeth and the magnetism of the magnetic locking block attract each other. As a further description of the above technical solution: The shaping cage includes two mounting plates. Three magnetic locking blocks arranged in a triangular pattern are provided on the opposite side of the mounting plates. The locking teeth on the inner circumference of the locking ring are trapezoidal teeth. A groove with a shape that matches the locking teeth is opened on the outer side of the magnetic locking blocks. A steel frame is welded between the two mounting plates. As a further description of the above technical solution: The outer side of the mounting plate is provided with three movable magnetic slots, and the inside of the movable magnetic slots is provided with a limiting partition. The magnetism of the movable magnetic slots and the magnetism of the magnetic locking block attract each other, and the magnetism of the movable magnetic slots is less than the magnetism of the locking teeth. As a further description of the above technical solution: The running wheel is a complete seamless ring structure machined in one piece. The running wheel is coaxially set with the mold shell. The inner circumferential surface of the running wheel is fully welded to the outer circumferential surface of the mounting plate. Multiple sets of running wheels are set at equal intervals along the axial direction of the inner core. The outer circumferential surface of the running wheel is a smooth cylindrical working surface. The axial width of the running wheel matches the contact width of the matching centrifuge support roller. As a further description of the above technical solution: The inner core includes a feeding shaft, and a one-way discharge port for spraying nano-aerogel composite thermal insulation mortar is provided on the outside of the feeding shaft. A shaping scraper is provided on the outside of the feeding shaft, which is used to precisely scrape the nano-aerogel composite thermal insulation mortar sprayed on the inner wall of the pole. As a further description of the above technical solution: The feeding shaft is a hollow cylindrical structure. One end of the feeding shaft is equipped with a flange that communicates with an external feeding device, and the other end of the feeding shaft is a solid end, which is engaged with the anti-deviation shaft of the matching centrifuge. As a further description of the above technical solution: The one-way discharge port has a built-in solid conical atomizing nozzle, which is evenly distributed along the axial direction of the feeding shaft and is staggered with the shaping scraper. The one-way discharge port has a built-in one-way valve structure to prevent cement slurry from backflowing and clogging the channel. It is only opened when the high-pressure slurry passes through during the spraying stage. After the energy-saving slurry is homogenized, it is sprayed vertically onto the inner wall of the initially formed pole by the centrifugal force of rotation, so as to achieve full-length, full-circumference spraying without blind spots. As a further description of the above technical solution: The shaping scraper includes a positioning shaft fixedly installed on the outside of the feeding shaft, a scraper plate slidably connected to the outside of the positioning shaft, and an elastic ring provided between the scraper plate and the feeding shaft.

[0007] Compared with the prior art, the advantages of the present invention are as follows: 1. The meshing transmission of the drive gear ring drives three transmission gear rings arranged in a triangular pattern to rotate synchronously. The protruding structure on the inner side of the transmission gear ring pushes the locking ring towards the center of the mold. With the directional limiting constraint of the limiting groove and limiting protrusion, the locking ring can only close radially. Then, the strong magnetic attraction of the locking teeth drives the magnetic locking block to pop out from the movable magnetic groove of the mounting plate. Finally, the locking teeth and the outer slot of the magnetic locking block are meshed and locked, which achieves the beneficial effect of precise positioning and firm locking of the shaping cage and the reinforcing bar skeleton. It solves the pain points of easy rebar displacement and poor positioning accuracy of traditional molds, improves the uniformity of the protective layer thickness of the pole rebar, and reduces the defect rate of exposed rebar.

[0008] 2. The inner core feeding shaft, which rotates synchronously and coaxially with the mold, delivers nano-aerogel composite thermal insulation mortar through its hollow cavity. Combined with the centrifugal homogenization effect of the mold rotation, the mortar is sprayed without blind spots along the entire length of the inner wall of the pole through a one-way discharge port. Then, the mortar is simultaneously leveled and fixed in thickness by a scraper plate with the elastic support of the elastic ring and the dual action of the centrifugal force of the rotation. At the same time, the precise docking of the integrated running wheel and the centrifugal device ensures the rotational stability. This achieves the beneficial effect of simultaneous molding of the pole body and the energy-saving layer in one step, without the need for additional secondary construction. It can precisely control the inner diameter of the pole molding, improve production efficiency and the consistency of finished product quality. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the main body of an embodiment of a cement pole forming mold proposed in this invention; Figure 2 This is a schematic diagram of the mold shell structure of a cement pole forming mold proposed in this invention; Figure 3 This is a schematic diagram of the structure of the shaping cage of a cement pole forming mold proposed in this invention; Figure 4 This is a schematic diagram of the inner core structure of a cement pole forming mold proposed in this invention; Figure 5This is a schematic diagram of the structure of the shaping scraper of a cement pole forming mold proposed in this invention; Figure 6 This is a schematic diagram of the running wheel structure of a cement pole forming mold proposed in this invention; Figure 7 This is a schematic diagram of the locking mechanism of a cement pole forming mold proposed in this invention; Figure 8 This is a schematic diagram of the transmission gear ring of a cement pole forming mold proposed in this invention; Figure 9 This is a schematic diagram of the limiting groove structure of a cement pole forming mold proposed in this invention; Figure 10 for Figure 6 Enlarged view of point A in the image.

[0010] Labeling Explanation: 1. Mold Shell; 2. Shaping Cage; 201. Mounting Plate; 202. Magnetic Locking Block; 203. Steel Reinforcing Frame; 3. Locking Mechanism; 301. Mounting Plate; 302. Drive Gear Ring; 303. Transmission Gear Ring; 304. Locking Ring; 305. Locking Tooth; 306. Limiting Protrusion; 307. Limiting Groove; 4. Running Wheel; 5. Inner Core; 51. Feeding Shaft; 52. One-Way Discharge Port; 53. Shaping Scraper; 531. Positioning Shaft; 532. Scraper Plate; 533. Elastic Ring. Detailed Implementation

[0011] The present invention will now be described in detail with reference to the accompanying drawings and embodiments: like Figures 1 to 10 The diagram shown is an embodiment of a cement pole forming mold provided by the present invention. The mold includes a separable mold shell 1, which provides a sealed forming cavity for centrifugal molding of concrete, precisely defining the external dimensions and taper of the pole to ensure the forming accuracy of the pole's outer wall. A shaping cage 2 is installed inside the mold shell 1, providing a stable mounting and positioning base for the reinforcing steel skeleton 203, constraining the installation position of the reinforcing steel skeleton 203, and ensuring the coaxiality of the reinforcing steel skeleton 203 and the mold. The mold shell 1 has two ends... A locking mechanism 3 is provided, which enables the shaping cage to be quickly locked and unlocked inside the mold, preventing the shaping cage and the steel frame 203 from shifting or deviating during centrifugation. A running wheel 4 is also provided on the outside of the locking mechanism 3. The running wheel 4 is connected to the drive wheel of the centrifugation device to transmit rotational power and support the overall weight of the mold, ensuring the coaxiality and stability of the mold when it rotates at high speed. An inner core 5 is fixedly connected to the center of the mold shell 1. The inner core 5 provides an installation base for shaping the inner wall of the pole and forming the energy-saving layer, accurately controlling the inner hole size of the pole, and realizing the synchronous forming of the energy-saving layer and the pole body.

[0012] The locking mechanism 3 includes a mounting plate 301, which provides a stable mounting base for all transmission components of the locking mechanism 3, ensuring the coaxiality and fitting accuracy of each transmission component. The inner circle of the mounting plate 301 is fixedly connected to the outer side of the inner core 5. The inner side of the mounting plate 301 is rotatably connected to a drive gear ring 302 and multiple transmission gear rings 303. The drive gear ring 302 provides power input for locking and unlocking actions, and transmits rotational power to the transmission gear rings 303 through meshing transmission. The outer sides of the multiple transmission gear rings 303 are distributed in a triangular pattern on the inner side of the mounting plate 301, and the outer sides of the transmission gear rings 303 mesh with the inner sides of the drive gear rings 302. The transmission gear rings 303 realize the reversal and transmission of power, converting the rotational motion of the drive gear rings 302 into the radial movement power of the locking ring 304. The triangular distribution ensures uniform transmission force.

[0013] Multiple locking rings 304 are slidably connected to the inner side of the transmission gear ring 303. The locking rings 304 drive the locking teeth 305 to complete radial movement, realizing engagement and locking with the magnetic locking block 202 and unlocking. They are the core execution components of the locking action. Three protruding structures are provided on the inner side of the transmission gear ring 303. The protruding structures push the locking rings 304 to complete the radial closing action, ensuring that the three locking rings 304 move synchronously and the locking force is uniform. The apex of the protrusion abuts against the outer side of the locking ring 304, and the distance between the three protrusions is the same as the circumferential length of the three locking rings 304. Locking teeth 305 are distributed along the inner circumference of the inner side of the locking ring 304. The locking teeth 305 achieve a firm lock on the shaping cage through the dual action of strong magnetic adsorption and mechanical meshing. The locking teeth 305 on the outer side of the locking ring 304 are made of sintered neodymium iron boron material. The sintered neodymium iron boron material ensures the strong magnetic adsorption force of the locking teeth 305, and the magnetism of the locking teeth 305 and the magnetism of the magnetic locking block 202 attract each other. A limiting protrusion 306 is provided on one side of the locking ring 304. The limiting protrusion 306, together with the limiting groove 307, constrains the movement trajectory of the locking ring 304, preventing the locking ring 304 from shifting circumferentially and ensuring the accuracy of radial movement. The mounting plate 301 is provided with a limiting groove 307 for the sliding of the limiting protrusion 306. The limiting groove 307 limits the movement direction and stroke of the locking ring 304, ensuring that the locking ring 304 can only close radially toward the center or separate in the opposite direction, avoiding deviation in the locking action.

[0014] The shaping cage 2 includes two mounting plates 201, which provide mounting support for the reinforcing bar skeleton 203 and magnetic locking blocks 202, ensuring the axial positioning accuracy and circumferential distribution uniformity of the reinforcing bar skeleton 203. Three magnetic locking blocks 202 arranged in a triangular pattern are provided on opposite sides of the mounting plates 201. The magnetic locking blocks 202, in conjunction with locking teeth 305, lock and fix the shaping cage, achieving a rigid connection between the shaping cage and the locking mechanism 3, preventing the shaping cage from shifting during centrifugation. The locking teeth 305 on the inner circumferential surface of the locking ring 304... 5 is a trapezoidal tooth structure, which improves the stability of the meshing and locking, and prevents loosening or misalignment during high-speed rotation; and the outer side of the magnetic locking block 202 has a groove that matches the shape of the locking teeth 305. The groove and the trapezoidal locking teeth 305 mesh precisely, improving the meshing stability of the locking structure; a steel reinforcement skeleton 203 is welded between the two mounting plates 201. The steel reinforcement skeleton 203 provides structural reinforcement for the pole, improves the bending strength, crack resistance and overall structural rigidity of the pole, and ensures that the mechanical performance of the pole meets the standards.

[0015] The outer side of the mounting plate 201 has three movable magnetic slots, which provide pre-installation space for the magnetic locking block 202. The magnetic locking block 202 is pre-fixed through weak magnetic adsorption, ensuring the accurate initial installation position of the magnetic locking block 202. The movable magnetic slots are equipped with limit baffles inside, which limit the pre-installation stroke of the magnetic locking block 202 and prevent the magnetic locking block 202 from falling out of the movable magnetic slots, ensuring the stability of the pre-installation state. The magnetism of the movable magnetic slots and the magnetism of the magnetic locking block 202 attract each other, and the magnetism of the movable magnetic slots is less than the magnetism of the locking teeth 305, ensuring that the locking teeth 305 can drive the magnetic locking block 202 to complete the pop-out engagement action through strong magnetic adsorption.

[0016] The inner core 5 includes a feeding shaft 51, which provides a sealed conveying channel for the energy-saving layer slurry and a coaxial mounting base for the one-way discharge port 52 and the shaping scraper, ensuring the synchronous rotation of each component and the mold. The outer side of the feeding shaft 51 is provided with a one-way discharge port 52 for spraying nano-aerogel composite thermal insulation mortar. The one-way discharge port 52 sprays the nano-aerogel composite thermal insulation mortar evenly onto the inner wall of the pole, realizing the synchronous spraying and forming of the energy-saving layer. The outer side of the feeding shaft 51 is provided with a shaping scraper 53, which scrapes off excess concrete laitance and energy-saving layer slurry on the inner wall of the pole, accurately controls the inner hole size and energy-saving layer thickness of the pole, and ensures the smoothness of the inner wall of the pole and the uniformity of the coating. The shaping scraper 53 is used to accurately scrape the nano-aerogel composite thermal insulation mortar sprayed on the inner wall of the pole.

[0017] The feeding shaft 51 has a hollow cylindrical structure, which forms a sealed slurry conveying cavity to ensure stable delivery of nano-aerogel composite thermal insulation mortar without leakage or blockage risk. One end of the feeding shaft 51 is equipped with a flange that connects to an external feeding device. The flange achieves a sealed connection between the feeding shaft 51 and the external feeding device, ensuring the sealing performance during high-pressure slurry delivery and preventing slurry leakage. The other end of the feeding shaft 51 is a solid end, which is engaged with the anti-deviation shaft of the matching centrifuge. The precise engagement between the solid end and the anti-deviation shaft of the centrifuge ensures that the feeding shaft 51 rotates completely synchronously with the mold, preventing radial runout during high-speed rotation and improving molding accuracy.

[0018] The one-way discharge port 52 has a built-in solid conical atomizing nozzle, which atomizes the energy-saving slurry into uniform particles, ensuring that the slurry adheres evenly to the inner wall of the pole, improving the density and adhesion of the coating. The nozzles are evenly spaced along the axial direction of the feeding shaft 51, interspersed with the shaping scraper, achieving full-length, full-circumference spraying without blind spots on the inner wall of the pole, ensuring uniform thickness of the energy-saving layer and eliminating any missed or thin spray areas. The one-way discharge port 52 has a built-in one-way valve structure, which prevents cement slurry and debris from flowing back into the conveying channel, avoiding pipeline blockage and ensuring stable spraying operations. It prevents cement slurry from flowing back and blocking the channel, opening only when high-pressure slurry passes through during the spraying stage, achieving precise control of the spraying action. After homogenizing the energy-saving slurry, it is vertically sprayed onto the initially formed inner wall of the pole using centrifugal force, achieving full-length, full-circumference spraying without blind spots.

[0019] The shaping scraper 53 includes a positioning shaft 531 fixedly installed on the outside of the feeding shaft 51. The positioning shaft 531 provides stable coaxial support for the scraper plate 532 and the elastic ring 533, ensuring the coaxiality of the scraper plate 532 and the feeding shaft 51 and avoiding eccentricity during the scraping process. The scraper plate 532 is slidably connected to the outside of the positioning shaft 531. The scraper plate 532 scrapes off excess slurry and paste from the inner wall of the pole, accurately controlling the inner hole size and energy-saving layer thickness of the pole, and ensuring the forming accuracy of the inner wall. An elastic ring 533 is provided between the scraper plate 532 and the feeding shaft 51. The elastic ring 533 provides continuous radial elastic support for the scraper plate 532, ensuring that the scraper plate 532 is always in close contact with the inner wall of the pole. At the same time, the radial extension of the scraper plate 532 can be adjusted by replacing the elastic ring 533 with different elastic types to adapt to the production of poles with different inner diameters.

[0020] The running wheel 4 is a one-piece, machined, seamless ring structure. This one-piece seamless ring structure eliminates splicing gaps, preventing vibration, jumping, and abnormal noise during high-speed rotation, improving the stability of mold rotation, and extending service life. The running wheel 4 is coaxially set with the mold shell 1. The inner circumferential surface of the running wheel 4 is fully welded to the outer circumferential surface of the mounting plate 301. This full circumferential welding ensures the connection strength between the running wheel 4 and the mounting plate 301, preventing the running wheel 4 from loosening or falling off during high-speed rotation. Multiple sets of running wheels 4 are evenly spaced along the axial direction of the inner core 5. These evenly spaced sets provide uniform axial support for the mold, preventing deflection deformation during high-speed rotation and ensuring the uniformity of the pole's wall thickness along its entire length. The outer circumferential surface of the running wheel 4 is a smooth cylindrical working surface. This smooth cylindrical working surface ensures good contact with the centrifuge rollers, improving the stability of torque transmission and reducing friction loss and noise during rotation. The axial width of the running wheel 4 matches the contact width of the matching centrifuge rollers, ensuring sufficient contact area for power transmission, avoiding local stress concentration, and improving transmission efficiency and component service life.

[0021] Working principle: First, the pre-assembly and locking of the shaping cage are completed. The reinforcing steel frame 203 is welded and fixed between two mounting plates 201. Three magnetic locking blocks 202 arranged in a triangular pattern are pre-installed into the movable magnetic grooves on the opposite side of the mounting plates 201. Pre-fixing is completed by the weak magnetic attraction between the movable magnetic grooves and the magnetic locking blocks 202. At the same time, a limiting partition is installed in the movable magnetic groove to complete the limiting. Then, the pre-assembled shaping cage is hoisted into the lower half of the mold cavity of the mold shell 1. After the initial positioning is completed, the drive gear ring 302 of the locking mechanism 3 is rotated. The rotation of the drive gear ring 302 synchronously drives the three transmission gear rings 303 arranged in a triangular pattern to rotate. During the rotation of the transmission gear rings 303, the inner side of the transmission gear rings 303... Three protruding structures press the three locking rings 304 toward the center of the mold. During this process, the limiting groove 307 on the mounting plate 301 cooperates with the limiting protrusion 306 on the locking ring 304 to restrict the movement direction of the locking ring 304, so that it can only close in the radial direction toward the center. During the closing process of the locking ring 304 toward the center, the strong magnetic attraction generated by the locking teeth 305 of the sintered neodymium iron boron material on its inner side is greater than the weak magnetic attraction between the movable magnetic groove and the magnetic locking block 202, which pops the magnetic locking block 202 outward from the movable magnetic groove of the mounting plate 201. Finally, the trapezoidal locking teeth 305 on the inner side of the locking ring 304 and the matching groove on the outer side of the magnetic locking block 202 are fully engaged and locked, completing the locking installation of the shaping cage in the mold shell 1.

[0022] After the molding cage is locked and installed, the inner core 5 and the running wheel 4 are installed and the mold is closed and the material is laid. The inner core 5 is inserted coaxially into the center of the molding cage, so that the solid end of the feeding shaft 51 is aligned with the docking end of the subsequent centrifugal device, and the end with the flange is aligned with the docking end of the external feeding device. The positioning and installation of the inner core 5 is completed. Then, the running wheel 4, which is an integral and seamless ring structure, is installed coaxially at equal intervals along the axial direction of the inner core 5, so that the inner circumferential surface of the running wheel 4 is aligned and fixed with the outer circumferential surface of the mounting plate 301 of the locking mechanism 3. Then, according to the design ratio, concrete raw materials are evenly poured into the cavity formed by the lower half of the mold shell 1 and the molding cage. After the material is laid, the upper half of the mold shell 1 is hoisted to the top of the lower half to complete the alignment and mold closing of the upper and lower molds. The mold closing bolts are tightened to complete the overall locking of the mold.

[0023] After the mold is closed and locked, the centrifugal unit is connected and installed. The entire mold is hoisted to the centrifugal unit using hoisting equipment, so that the anti-deviation shaft of the centrifugal unit and the solid end of the inner core 5 feeding shaft 51 are precisely engaged. At the same time, the running wheel 4 on the mold is fully engaged with the drive wheel of the centrifugal unit to ensure the stability of torque transmission. Then, the flange at the other end of the inner core 5 feeding shaft 51 is sealed and connected with the conveying pipeline of the external high-pressure feeding device, completing all the preparations before centrifugal molding.

[0024] After the workstation docking is completed, the centrifugal device is started to perform centrifugal forming of the pole and simultaneous spraying of the energy-saving layer. The centrifugal device drives the running wheel 4 and the mold to rotate as a whole through the drive wheel, completing the stepped centrifugal shaping according to the preset process. After the entire mold enters a stable and uniform rotation state, the external high-pressure feeding device is started to introduce nano-aerogel composite thermal insulation mortar into the hollow inner cavity of the feeding shaft 51. Under the homogenization effect of centrifugal rotation, the mortar is sprayed out in a straight line through the one-way discharge port 52 on the side wall of the feeding shaft 51, and evenly adheres to the inner wall of the initially formed pole. During the process, the shaping scraper of the inner core 5 rotates completely synchronously with the mold. Under the dual action of the centrifugal force generated by the rotation and the elastic support of the elastic ring 533, the outer edge of the scraper 532 is always in close contact with the inner wall of the concrete, and the excess laitance and protrusions on the inner wall are scraped off synchronously to complete the initial shaping of the pole body. At the same time, according to the design requirements of the inner diameter of the pole, different elastic rings 533 can be replaced in advance to adjust the radial extension of the scraper 532, accurately control the forming inner diameter of the cement pole, and finally complete the shaping of the energy-saving layer on the inner wall of the pole.

[0025] After the shaping of the pole and energy-saving layer is completed, the curing, demolding, and finished product removal operations are carried out. The centrifugal device is turned off, and the mold is hoisted into the steam curing tank using hoisting equipment. Normal pressure steam curing is carried out according to the preset curing process, so that the concrete body of the pole and the nano-aerogel composite thermal insulation mortar on the inner wall can be hydrated and cured simultaneously. After the curing is up to standard, the mold is hoisted out of the curing tank, and the drive gear ring 302 is rotated in the reverse direction. Through the transmission gear ring 303, the locking ring 304 is driven to move in the reverse direction, so that the locking teeth 305 disengage from the slot of the magnetic locking block 202, releasing the locking state of the shaping cage. Then, the mold closing bolts of the upper and lower mold shell 1 are removed, the upper and lower mold bodies are separated, the running wheel 4 is removed, and the inner core 5 is smoothly pulled out from the inner hole of the pole. Finally, the formed cement pole with energy-saving layer is hoisted out of the inner cavity of the mold, completing the entire molding process of the cement pole.

Claims

1. A cement pole forming mold, comprising a mold shell (1) that can be separated into upper and lower parts, characterized in that: The mold shell (1) is equipped with a shaping cage (2) inside, and a locking mechanism (3) is provided at both ends of the mold shell (1). A running wheel (4) is also provided on the outside of the locking mechanism (3). An inner core (5) is fixedly connected to the center of the mold shell (1). The locking mechanism (3) includes a mounting plate (301). The inner circle of the mounting plate (301) is fixedly connected to the outer side of the inner core (5). The inner side of the mounting plate (301) is rotatably connected to a drive gear ring (302) and multiple transmission gear rings (303). The outer sides of the multiple transmission gear rings (303) are distributed in a triangular pattern on the inner side of the mounting plate (301), and the outer sides of the transmission gear rings (303) mesh with the inner side of the drive gear rings (302). The inner side of the transmission gear rings (303) is slidably connected to multiple locking rings (304). The inner side of the locking rings (304) is provided with locking teeth (305) along the inner circumference of the inner circle. A limiting protrusion (306) is provided on one side of the locking rings (304), and a limiting groove (307) for sliding of the limiting protrusion (306) is provided on the mounting plate (301).

2. The cement pole forming mold according to claim 1, characterized in that: The inner side of the transmission gear ring (303) is provided with three protrusions. The apex of the protrusions abuts against the outer side of the locking ring (304), and the distance between the three protrusions is the same as the circumferential length of the three locking rings (304). The locking teeth (305) on the outer side of the locking ring (304) are made of sintered neodymium iron boron material, and the magnetism of the locking teeth (305) and the magnetism of the magnetic locking block (202) attract each other.

3. The cement pole forming mold according to claim 2, characterized in that: The shaping cage (2) includes two mounting plates (201). Three magnetic locking blocks (202) are arranged in a triangular pattern on the opposite side of the mounting plates (201). The locking teeth (305) on the inner circumference of the locking ring (304) are trapezoidal teeth. A groove with a shape that matches the locking teeth (305) is opened on the outer side of the magnetic locking blocks (202). A steel frame (203) is welded between the two mounting plates (201).

4. The cement pole forming mold according to claim 3, characterized in that: The mounting plate (201) has three movable magnetic slots on its outer side, and the movable magnetic slots are equipped with limit partitions inside. The magnetism of the movable magnetic slots and the magnetism of the magnetic locking block (202) attract each other, and the magnetism of the movable magnetic slots is less than the magnetism of the locking teeth (305).

5. The cement pole forming mold according to claim 1, characterized in that: The running wheel (4) is a complete seamless ring structure formed by one-piece machining. The running wheel (4) is coaxially set with the mold shell (1). The inner circumferential surface of the running wheel (4) is fully welded to the outer circumferential surface of the mounting plate (301). Multiple sets of running wheels (4) are set at equal intervals along the axial direction of the inner core (5). The outer circumferential surface of the running wheel (4) is a smooth cylindrical working surface. The axial width of the running wheel (4) matches the contact width of the matching centrifuge roller.

6. The cement pole forming mold according to claim 1, characterized in that: The inner core (5) includes a feeding shaft (51), and a one-way discharge port (52) for spraying nano-aerogel composite thermal insulation mortar is provided on the outside of the feeding shaft (51). A shaping scraper (53) is provided on the outside of the feeding shaft (51). The shaping scraper (53) is used to precisely scrape the nano-aerogel composite thermal insulation mortar sprayed on the inner wall of the pole.

7. A cement pole forming mold according to claim 6, characterized in that: The feeding shaft (51) is a hollow cylindrical structure. One end of the feeding shaft (51) is equipped with a flange that communicates with an external feeding device. The other end of the feeding shaft (51) is a solid end, and the solid end is engaged with the anti-deviation shaft of the matching centrifuge.

8. A cement pole forming mold according to claim 6, characterized in that: The one-way discharge port (52) has a built-in solid conical atomizing nozzle, which is distributed at equal intervals along the axial direction of the feeding shaft (51) and is arranged alternately with the shaping scraper. The one-way discharge port (52) has a built-in one-way valve structure, which can prevent cement slurry from backflowing and blocking the channel. It is only opened when the high-pressure slurry passes through during the spraying stage, and the energy-saving slurry is homogenized and then sprayed vertically onto the inner wall of the initially formed pole by the centrifugal force of rotation, so as to achieve full-length, full-circumference spraying without blind spots.

9. A cement pole forming mold according to claim 6, characterized in that: The shaping scraper (53) includes a positioning shaft (531) fixedly installed on the outside of the feeding shaft (51), a scraper plate (532) is slidably connected to the outside of the positioning shaft (531), and an elastic ring (533) is provided between the scraper plate (532) and the feeding shaft (51).

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