Rolling pressure roller device with controllable rolling law for different pipe diameters

Abstract

The present application relates to cement prefabricated centrifugal forming equipment technical field, and disclose a kind of different pipe diameter rolling law controllable wear-resistant roller device, including pedestal and pipe mould body, one end of pedestal is forming area, the other end is upper and lower material area, the both sides of forming area are equipped with the support roller for supporting pipe mould body and for driving pipe mould body rotation;It also includes material moving mechanism, material moving mechanism includes first rotating shaft, which is evenly arranged in forming area and upper and lower material area along the length direction of pedestal.The present application, by installing one end of the roller body on the swing arm, the other end is quickly disassembled and connected with another swing arm, and cooperate with the setting of material moving mechanism, the pipe pile in pipe mould body can be formed after the pipe mould body is lifted up and separated from the support roller, then horizontally removed to upper and lower material area, so that safe and fast loading and unloading can be realized in the upper and lower material area without obstruction on both sides, not only improve work efficiency, but also increase safety.

Description

Technical Field

[0001] This invention relates to the field of centrifugal molding equipment for cement precast components, and in particular to a wear-resistant pressure roller device with controllable rolling patterns adapted to different pipe diameters. Background Technology

[0002] The roller pressing device is a key piece of equipment in the centrifugal forming process of concrete pipe piles. It typically includes a pipe mold, support wheels, and a pressure roller mechanism. During the forming process, the concrete pipe pile to be formed is placed inside the pipe mold, which is then mounted on the support wheels and driven to rotate. At the same time, a long roller extends from one end of the pipe mold and fits tightly against the inner wall of the pipe pile. As the pipe mold rotates at high speed, the concrete material is distributed outward under the action of centrifugal force and is gradually compacted, flattened, and densified under the continuous radial pressure of the roller, thereby achieving high-quality forming of the pipe pile. In addition, to seal both ends of the pipe mold and facilitate assembly, flanges with a diameter larger than that of the pipe mold body are usually installed at the pipe mold ends for sealing and structural connection.

[0003] However, existing roller pressing devices still have certain limitations in practical applications: In order to facilitate the installation and disassembly of the tube mold, the pressure roller is often designed as a detachable structure, that is, the pressure roller needs to be disassembled before loading and unloading to make room for the passage. This process not only involves the disassembly and assembly of multiple bolts, end seats and other components, which is cumbersome, time-consuming and labor-intensive, but also because the tube mold usually has auxiliary structures such as columns, pressure rollers and drive devices arranged on both sides, the space is narrow. Even if the pressure roller is removed, the tube mold with large volume and mass is still extremely inconvenient to enter and exit, and is prone to collisions, or even damage to key components such as rollers, bearings or columns, affecting the accuracy and service life of the equipment, while also increasing maintenance costs and downtime of molding operations. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the existing method of disassembling the pressure roller for loading and unloading is cumbersome, space is limited, and it is easy to cause damage to the equipment by bumping, which affects efficiency and maintenance costs. To this end, we propose a wear-resistant pressure roller device that can adapt to the rolling pattern of different pipe diameters.

[0005] To achieve the above objectives, this application adopts the following technical solution: a controllable wear-resistant pressure roller device that adapts to rolling patterns of different pipe diameters, including a base and a pipe mold body. One end of the base is a forming area, and the other end is a loading and unloading area. Support rollers for supporting the pipe mold body and driving the pipe mold body to rotate are installed on both sides of the forming area. A pair of first columns are installed on the side of the forming area. A swing arm is rotatably mounted on the side of the first column. A pressure roller body located inside the tube mold body is rotatably mounted on the end of the two swing arms away from the first column. The end of the pressure roller body near the loading and unloading area is connected to the swing arm through a quick-release structure. It also includes a material transfer mechanism, which includes a first rotating shaft disposed in the forming area and the loading / unloading area. Conical material transfer rollers are symmetrically and movably mounted on both ends of the first rotating shaft. A traction frame corresponding to the material transfer rollers is movably mounted on the base along the width direction of the base. The upper end of the traction frame is rotatably connected to one end of the material transfer roller. An installation groove is provided on the inner side of the base. Side plates are symmetrically mounted on opposite sides of the cavity of the installation groove. A bevel is provided at the end of the side plate away from the loading / unloading area and in the middle. Guide plates are symmetrically and movably connected to opposite sides of the two side plates. Moving rollers corresponding to the bevels are rotatably mounted on the sidewalls at both ends of the guide plates. The top of the guide plate... The part is provided with a first limiting groove, and the bottom of the traction frame is provided with a traction wheel extending to the inside of the mounting groove. The lower end of the traction wheel in the forming area is located inside the first limiting groove. It is configured such that when the moving roller moves from the inclined groove to the side of the side plate, the guide plate can drive the moving roller in the forming area to move along the width direction of the base through the first limiting groove, thereby driving the material transfer roller in the forming area to support the tube mold body. The mounting groove is provided with a drive mechanism for driving the guide plate to move, and the base is provided with a second drive source for driving the first rotating shaft to rotate, thereby transferring the tube mold body from the material transfer roller in the forming area to the material transfer roller in the loading and unloading area.

[0006] Preferably, the driving mechanism includes a lead screw rotatably disposed at the lower end of the inner side of the mounting groove, a first driving source for driving the lead screw to rotate is disposed at one end of the base, a movable frame that is threadedly engaged with the lead screw is movably disposed on the inner side of the mounting groove along the length direction of the base, and a traction arm that is movably inserted into the movable frame is disposed on the side of the guide plate away from the side plate.

[0007] Preferably, it also includes a avoidance guide assembly for controlling the material transfer roller to avoid the flange at the end of the tube mold body. The avoidance guide assembly includes a first guide groove that is inclined in a direction away from the loading and unloading area and toward the side plate. The top of the guide plate is provided with a second limiting groove that is parallel to the first limiting groove. The end of the second limiting groove near the loading and unloading area is provided with a second guide groove that is inclined toward the side plate. The traction wheel of the loading and unloading area corresponds to the end of the second guide groove that is away from the second limiting groove in the initial state. Initially, the second guide groove and the first guide groove are located between the two flanges at both ends of the tube mold body.

[0008] Preferably, the outer side of the traction arm is fitted with a first elastic element located between the moving frame and the guide plate.

[0009] Preferably, a second elastic element is sleeved on the outer side of the middle part of the first rotating shaft in the loading and unloading area, located between the two material transfer rollers.

[0010] Preferably, the transfer roller is provided with a reinforcing component for increasing the friction between the transfer roller and the first rotating shaft. The reinforcing component includes an even number of mounting cavities evenly arranged on the inner periphery of the transfer roller. An inclined movable frame is rotatably arranged inside the mounting cavity. A rubber roller corresponding to the outer wall of the first rotating shaft is rotatably arranged at one end of the movable frame near the inner side of the transfer roller. A torsion spring is provided at the rotation point between the movable frame and the inner wall of the mounting cavity.

[0011] Preferably, the transfer roller is provided with an unlocking component, which includes a sliding cavity disposed at one end of the transfer roller, a traction disc corresponding to the sliding cavity being movably sleeved at the end of the first rotating shaft, one end of the traction disc being movably connected to the inner side of the sliding cavity, the upper end of the traction frame being rotatably disposed on the outer side of the traction disc, a second adjusting arm extending to the inner side of the mounting cavity being provided at one end of the traction disc, a convex shaft corresponding to the second adjusting arm being provided on the side wall of the movable inclined frame, and a conical lifting arm corresponding to the convex shaft being provided at one end of the second adjusting arm.

[0012] Preferably, the first column is a hollow structure, and a first hydraulic cylinder is hinged to the inner side of the first column. One end of the swing arm extends to the inner side of the first column and is hinged to the output end of the first hydraulic cylinder. An end seat is provided at the end of the swing arm away from the first column. A connecting shaft is provided at both ends of the pressure roller body. One end of the connecting shaft corresponds to the inner wall of the flange at the end of the tube mold body. The connecting shaft and the inner side of the end seat are rotatably connected by a bearing.

[0013] Preferably, the quick-release structure includes a hydraulic cylinder hinged to one end of a swing arm near the loading / unloading area, and the end of the swing arm near the loading / unloading area away from the first column is an arc-shaped structure adapted to the end seat. A pressure plate adapted to the end seat is hinged to one side of the upper end of the arc-shaped structure, and the output end of the hydraulic cylinder is hinged to the pressure plate.

[0014] Preferably, the inner side of the first column is threaded with a limiting screw that corresponds to the end of the swing arm away from the pressure roller body and is used to limit the end of the swing arm.

[0015] The technical effects and advantages of this invention are as follows: In this invention, the wear-resistant pressure roller device with controllable rolling pattern for different pipe diameters is designed to install one end of the pressure roller body on a swing arm and quickly detach and connect the other end to another swing arm. With the help of the material transfer mechanism, after the pipe pile in the pipe mold body is formed, the pipe mold body can be lifted upward and separated from the support roller, and then moved horizontally to the loading and unloading area. This allows for safe and fast loading and unloading in the unobstructed loading and unloading area on both sides, which not only improves work efficiency but also increases safety.

[0016] In this invention, the avoidance and guidance components allow the transfer rollers in the loading / unloading area and the forming area to avoid the flanges with larger diameters at both ends of the mold body. This prevents interference between the protruding outer edges of the flanges and the transfer rollers, which would otherwise prevent the transfer rollers from conveying the mold body. The transfer rollers in the forming area can avoid the flanges at the end of the mold body away from the loading / unloading area before they reach the transfer rollers. The transfer rollers in the loading / unloading area can close after the flanges at the end of the mold body near the loading / unloading area have passed the transfer rollers, thus supporting the mold body. Through the ingenious design of the first and second guide grooves, automatic avoidance is achieved, making it convenient to use and improving work efficiency.

[0017] In this invention, by combining the reinforcement components with the unlocking components, the friction between the transfer roller and the first rotating shaft can be increased. The one-way self-locking function of the inclined movable frame not only increases the stability of the transfer roller when it is subjected to the pressure of the mold body, but also reduces the stress on the traction frame and traction wheel to a certain extent, thus improving its service life. The transfer roller can be automatically unlocked when it moves outward. Attached Figure Description

[0018] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 For the present invention Figure 1 A structural diagram from another perspective based on the above; Figure 3 This is a structural diagram of the tube mold body, the first column, the second column, and the base of the present invention in a disassembled state; Figure 4 This is a schematic diagram of the overall structure of the base and the transfer roller of the present invention; Figure 5 This is a structural schematic diagram of the side plate, guide plate, movable frame, lead screw, and base of the present invention in a disassembled state. Figure 6 This is a schematic diagram of the structure of the guide plate, side plate and movable frame of the present invention in a disassembled state; Figure 7 This is a schematic diagram of the overall structure of the material transfer roller and the first rotating shaft in the forming area of ​​the present invention; Figure 8 For the present invention Figure 7 A structural diagram from the bottom perspective; Figure 9 This is a schematic diagram of the overall structure of the first column and the pressure roller body of the present invention; Figure 10 For the present invention Figure 9 A structural diagram showing the structure in its disassembled state. Figure 11 This is a schematic diagram of the internal structure of the second column of the present invention; Figure 12 This is a schematic cross-sectional view of the material transfer roller of the present invention.

[0019] Legend: 1. Base; 2. Mold body; 3. First column; 4. Second column; 5. Support roller; 6. Transfer roller; 7. First drive source; 8. Second drive source; 9. Mounting groove; 10. Pressure roller body; 11. Swing arm; 12. Side plate; 13. Lead screw; 14. Moving frame; 15. Guide plate; 16. Inclined bevel; 17. Traction arm; 18. First elastic element; 19. Moving roller; 20. First limiting groove; 21. First guide groove; 22. Second limiting groove; 23. Second guide... 24. Guide groove; 25. First rotating shaft; 26. Traction frame; 27. Traction disc; 28. Traction wheel; 29. ​​End seat; 20. First hydraulic cylinder; 30. Connecting shaft; 31. Restricting screw; 32. First adjusting arm; 33. Pressure roller; 34. Second hydraulic cylinder; 35. Sliding cavity; 36. Second adjusting arm; 37. Mounting cavity; 38. Movable inclined frame; 39. Rubber roller; 40. Second rotating shaft; 41. Torsion spring; 42. Cantilever arm; 43. Convex shaft; 44. Second elastic element; 45. Pressure plate; 46. Hydraulic cylinder. Detailed Implementation

[0020] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0021] Reference Figures 1-12 As shown, a controllable wear-resistant pressure roller device adaptable to different pipe diameters and rolling patterns includes a base 1 and a pipe mold body 2. One end of the base 1 is a forming area, and the other end is a loading and unloading area. Support rollers 5 are installed on both sides of the forming area to support the pipe mold body 2 and drive the pipe mold body 2 to rotate. Specifically, the support rollers 5 are used to support the bottom sides of the pipe mold body 2. The support rollers 5 can be driven by a geared motor.

[0022] A pair of first columns 3 are fixedly installed on the side of the molding area of ​​the base 1. A swing arm 11 is rotatably mounted on the side of the first column 3. A pressure roller body 10 located inside the tube mold body 2 is rotatably mounted at the end of each swing arm 11 away from the first column 3. Specifically, the first column 3 has a hollow structure. A first hydraulic cylinder 29 is hinged to the lower inner end of the first column 3. The end of the swing arm 11 away from the pressure roller body 10 extends to the inner side of the first column 3 and is hinged to the output end of the first hydraulic cylinder 29. A threaded connection is made to the inner side of the first column 3 to the swing arm 10. A limiting screw 31, corresponding to the end of the arm 11 furthest from the pressure roller body 10, is used to limit the end of the swing arm 11. Through the limitation of the limiting screw 31 and the up-and-down swing of the swing arm 11, it can adapt to different diameter tube mold bodies 2, and simultaneously control the movement pattern of the pressure roller body 10. End seats 28 are respectively provided at the ends of the two swing arms 11 furthest from the first column 3. Connecting shafts 30 are bolted to both ends of the pressure roller body 10. One end of the connecting shaft 30 corresponds to the inner wall of the flange at the end of the tube mold body 2, and is connected to the flange... The area corresponding to the flange is surface hardened. When the tube mold body 2 rotates, the inner wall of the flange can roll and rub against the connecting shaft 30. The connecting shaft 30 is bolted to the pressure roller body 10. When the connecting shafts 30 at both ends of the pressure roller body 10 are deformed or worn, the bolts can be removed to replace the deformed connecting shaft 30, instead of replacing the entire pressure roller body 10, reducing maintenance cycles and saving materials. Bearings are installed inside the end seat 28, and one end of the connecting shaft 30 is installed inside the bearing. The end seat 28, which is away from the loading and unloading area, and... The corresponding swing arm 11 is installed by bolts. The end seat 28 of the pressure roller body 10 near the loading and unloading area is connected to the swing arm 11 at that end by a quick-release structure. As a preferred embodiment, the quick-release structure includes a hydraulic cylinder 46 hinged to one end of the swing arm 11 near the loading and unloading area. The end of the swing arm 11 near the loading and unloading area away from the first column 3 is an arc-shaped structure adapted to the end seat 28. A pressure plate 45 adapted to the end seat 28 is hinged to one side of the upper end of the arc-shaped structure. The output end of the hydraulic cylinder 46 is hinged to the pressure plate 45.

[0023] To prevent the mold body 2 from jumping when it rotates, multiple hollow second columns 4 are respectively provided on both sides of the molding area of ​​the base 1. The lower end of the inner side of the second column 4 is hinged to a second hydraulic cylinder 34. A first adjusting arm 32 is rotatably provided on the side of the second column 4 near the mold body 2. One end of the first adjusting arm 32 extends to the inner side of the second column 4 and is hinged to the output end of the second hydraulic cylinder 34. A pressure roller 33 corresponding to the side of the mold body 2 is rotatably provided on the end of the first adjusting arm 32 near the mold body 2. The pressure roller 33 is used to limit the upper two sides of the mold body 2 when it rotates to prevent jumping.

[0024] It also includes a material transfer mechanism, which includes multiple first rotating shafts 24 disposed in the forming area and the loading / unloading area. Conical material transfer rollers 6 are symmetrically and movably fitted at both ends of each first rotating shaft 24. Each material transfer roller 6 has a central hole, which is connected to the first rotating shaft 24 by a key. A traction frame 25 corresponding to the material transfer rollers 6 is movably disposed on the base 1 along its width direction. Specifically, to increase the stability of the traction frame 25 and the friction with the base 1, a linear guide rail can be provided at the top of the base 1, and the bottom of the traction frame 25 is movably disposed on this linear guide rail. The upper end of the traction frame 25 is rotatably connected to one end of the material transfer roller 6. An installation groove 9 is provided on the inner side of the base 1. The inner cavity of the installation groove 9... Side plates 12 are symmetrically installed on opposite sides of the base 1. A ramp 16 is provided at the end of the side plate 12 furthest from the loading / unloading area and in the middle. Guide plates 15 are symmetrically and movably connected to opposite sides of the two side plates 12. Moving rollers 19 corresponding to the ramp 16 are rotatably installed on the side walls of both ends of the guide plates 15. To reduce friction, ball bearings can be provided on the inner wall of the mounting groove 9 or the surface of the guide plates 15. A first limiting groove 20 is provided at the top end of the guide plate 15 furthest from the side plates 12. The length direction of the first limiting groove 20 is parallel to the length direction of the base 1. A traction wheel 27 extending into the inner side of the mounting groove 9 is provided at the bottom of the traction frame 25. Specifically, a slot can be opened on the base 1 for traction. The downward extension of wheel 27 initially places the lower end of the traction wheel 27 in the forming area inside the first limiting groove 20, and is configured such that when the moving roller 19 moves from the ramp 16 to the side of the side plate 12, the guide plate 15 can drive the moving roller 19 in the forming area to move along the width direction of the base 1 through the first limiting groove 20, thereby driving the material transfer roller 6 in the forming area to support the tube mold body 2, so that the tube mold body 2 separates from the support roller 5. A drive mechanism for driving the guide plate 15 to move is provided in the mounting groove 9. The drive mechanism includes a lead screw 13 rotatably disposed at the lower end of the inner side of the mounting groove 9. A first drive source 7 for driving the lead screw 13 to rotate is provided at one end of the base 1. The power source 7 is preferably a geared motor. A movable frame 14 that is threadedly engaged with the lead screw 13 is movably arranged on the inner side of the mounting groove 9 along the length direction of the base 1. In order to increase the stability of the movable frame 14 and reduce the friction, a linear guide rail can be installed on the inner side of the mounting groove 9, and the movable frame 14 is movably mounted on the linear guide rail. A traction arm 17 that is movably inserted into the movable frame 14 is provided on the side of the guide plate 15 away from the side plate 12. When the movable frame 14 is displaced, the guide plate 15 can be displaced by the traction arm 17. In order to facilitate the subsequent reset of the guide plate 15, a first elastic element 18 located between the movable frame 14 and the guide plate 15 is sleeved on the outer side of the traction arm 17. The first elastic element 18 is preferably a spring.

[0025] The base 1 is provided with a second drive source 8 for driving the first rotating shaft 24 to rotate. The second drive source 8 can be a geared motor installed on the base 1 and corresponding to the first rotating shaft 24 one by one. Alternatively, the rotation of multiple first rotating shafts 24 can be achieved by the geared motor in conjunction with a synchronous belt, synchronous pulley, or synchronous linkage structure such as sprocket and chain. This can transfer the tube mold body 2 from the transfer roller 6 in the forming area to the transfer roller 6 in the loading and unloading area.

[0026] Furthermore, to avoid interference between the transfer roller 6 and the flange at the end of the mold body 2, the present invention also includes a avoidance guide assembly for controlling the transfer roller 6 to avoid the flange at the end of the mold body 2. The avoidance guide assembly includes a first guide groove 21 that is inclined away from the loading and unloading area and toward the side plate 12. When the traction wheel 27 of the forming area enters the first guide groove 21, the transfer roller 6 of the forming area can move outward and separate, thereby avoiding contact and interference with the flange at the end of the mold body 2. The top of the guide plate 15 is provided with a second limiting groove 22 that is parallel to the first limiting groove 20. The second limiting groove 22 is provided with a second guide groove 23 inclined toward the side plate 12 at one end near the loading and unloading area. Initially, the second guide groove 23 and the first guide groove 21 are located between the two flanges at both ends of the tube mold body 2. The traction wheel 27 of the loading and unloading area is initially aligned with the end of the second guide groove 23 away from the second limiting groove 22. The two transfer rollers 6 on the first rotating shaft 24 of the loading and unloading area are initially separated. When the traction wheel 27 of the loading and unloading area is located inside the second limiting groove 22, the transfer rollers 6 in this area are merged, thereby supporting the bottom of the tube mold body 2.

[0027] A second elastic element 44 is sleeved on the outer side of the middle part of the first rotating shaft 24 in the loading and unloading area, located between the two transfer rollers 6. The second elastic element 44 is preferably a spring, which is used to provide preload force to the transfer rollers 6 at both ends, ensuring that the traction wheel 27 at the bottom of the transfer roller 6 can correspond to the end of the second guide groove 23 away from the second limiting groove 22, so that the traction wheel 27 of the loading and unloading area can enter the second guide groove 23 in the future.

[0028] Furthermore, a reinforcing assembly is provided on the transfer roller 6 to increase the friction between the transfer roller 6 and the first rotating shaft 24. In a preferred embodiment, the reinforcing assembly includes an even number of mounting cavities 37 evenly distributed on the inner periphery of the transfer roller 6, arranged in pairs opposite each other. A second rotating shaft 40 is rotatably mounted inside the mounting cavity 37. An inclined movable bracket 38 is mounted on the second rotating shaft 40. The two opposing movable brackets 38 form a transversely arranged "V" shape. One end of the movable bracket 38 near the inner side of the transfer roller 6 is rotatably connected to the first rotating shaft 24. A rubber roller 39 corresponding to the outer wall of shaft 24 is provided. A torsion spring 41 is provided at the rotation point between the second rotating shaft 40 and the inner wall of the mounting cavity 37. One end of the torsion spring 41 is fixed to the outer wall of the second rotating shaft 40, and the other end is fixed to the inner wall of the mounting cavity 37. Thus, a pre-tightening force can be applied to the outer wall of the first rotating shaft 24 through the rubber roller 39. This reinforcement component can achieve one-way self-locking of the transfer roller 6, which not only increases the stability of the transfer roller 6 when it is subjected to the pressure of the tube mold body 2, but also reduces the force on the traction frame 25 and the traction wheel 27 to a certain extent, thereby improving the service life.

[0029] Furthermore, in order to release the self-locking mechanism when the transfer roller 6 moves outward, an unlocking component is provided on the transfer roller 6. The unlocking component includes a sliding cavity 35 located at one end of the transfer roller 6, a traction disc 26 corresponding to the sliding cavity 35 movably sleeved at the end of the first rotating shaft 24, one end of the traction disc 26 being movably connected to the inner side of the sliding cavity 35, the upper end of the traction frame 25 being rotatably located on the outer side of the traction disc 26, a gap being provided between the traction frame 25 and the transfer roller 6, a second adjusting arm 36 extending to the inner side of the mounting cavity 37 being provided at one end of the traction disc 26, a convex shaft 43 corresponding to the second adjusting arm 36 being provided on the side wall of the movable inclined frame 38, and a conical lifting arm 42 corresponding to the convex shaft 43 being provided at one end of the second adjusting arm 36. The lifting arm 42 can push and flip the movable inclined frame 38 away from the axis of the transfer roller 6 through the convex shaft 43, so that the rubber roller 39 is separated from the outer wall of the first rotating shaft 24, thereby realizing the outward movement of the transfer roller 6.

[0030] In addition, a maintenance port can be provided on the base 1 for lubricating the linear guide, ball bearings, and lead screw 13 on the inner side of the mounting groove 9 to improve their smoothness.

[0031] The overall working principle is as follows: In use, the mold body 2 is located on the support roller 5 in the forming area, and the pressure roller 10 is located inside the mold body 2. The end seat 28 of the pressure roller 10 away from the loading and unloading area is bolted to the swing arm 11. The end seat 28 near the loading and unloading area is clamped by the pressure plate 45. One end of the two connecting shafts 30 corresponds to the inner wall of the flange at both ends of the mold body 2. By controlling the first oil cylinder 29, the swing arm 11 can be driven to swing up and down, so that the pressure roller 10 fits against the inner wall of the mold body 2. Initially, the moving roller 19 is located inside the inclined groove 16. The two material transfer rollers 6 on the first rotating shaft 24 in the forming area are in a separated state. The material transfer rollers 6 are lower than the mold body 2. The support roller 5 drives the rotation of the mold body 2. Under the action of centrifugal force and the pressure of the pressure roller 10, the cement material is radially distributed in the mold body 2, realizing water extrusion and material densification treatment, and completing the roll forming.

[0032] After roll forming, hydraulic cylinder 46 drives pressure plate 45 to flip open. First cylinder 29 in first column 3 at this end drives swing arm 11 to flip and move away from the end of tube mold body 2. Then, control first drive source 7 to drive screw 13 to rotate. Screw 13 drives moving frame 14 to move. Moving frame 14 drives guide plates 15 on both sides to move synchronously through traction arm 17. Then, moving roller 19 gradually moves from inclined groove 16 to the side of side plate 12, thereby reducing the distance between the two guide plates 15. Guide plates 15 drive multiple traction wheels 27 on both sides of the forming area to move towards the middle of base 1 through first limiting groove 20. Traction wheels 27 are driven by traction frame 2 5. The traction disc 26 is displaced, moving closer to the transfer roller 6. The second adjusting arm 36 causes the lifting arm 42 to separate from the cam shaft 43. Subsequently, the transfer roller 6 pushed by the traction disc 26 is displaced, thus the transfer roller 6 in the forming area gradually supports the tube mold body 2. The preload provided by the torsion spring 41 causes the rubber roller 39 to fit against the outer wall of the first rotating shaft 24. The two opposing movable inclined frames 38 form a "V" shape, thereby achieving one-way self-locking. When bearing the pressure of the tube mold body 2, the friction between the transfer roller 6 and the first rotating shaft 24 in the horizontal direction can be increased, thereby increasing the stability of the transfer roller 6 and reducing the possibility of the transfer roller 6 moving outward. This also reduces the stress on the traction frame 25 and traction wheel 27. After the tube mold body 2 is supported, the lead screw 13 continues to rotate, while controlling the second drive source 8 to drive the first rotating shaft 24 to rotate. The first rotating shaft 24 drives the transfer roller 6 to rotate. The transfer roller 6 in the forming area drives the tube mold body 2 to move towards the transfer roller 6 in the upper and lower material areas. Before the flange of the tube mold body 2 away from the upper and lower material areas reaches the transfer roller 6 in the forming area, the traction wheel 27 at the bottom of the transfer roller 6 will enter the first guide groove 21 from the first limiting groove 20 and then leave the first guide groove 21. Thus, under the guidance of the first guide groove 21, the traction wheel 27 is driven by the traction frame 25. The moving traction disc 26 moves towards the edge of the base 1. The second adjusting arm 36 and the lifting arm 42 are moved synchronously by the traction disc 26. The lifting arm 42 lifts and pushes the convex shaft 43 upward, thereby the convex shaft 43 drives the movable inclined frame 38 to move away from the axis of the transfer roller 6. As a result, the rubber roller 39 separates from the outer wall of the first rotating shaft 24, and the transfer roller 6 is unlocked. Under the pressure of the tube mold body 2 and the traction force of the traction frame 25, the transfer roller 6 moves towards the end of the first rotating shaft 24, thereby separating the transfer roller 6 from the tube mold body 2. This avoids interference between the transfer roller 6 in the molding area and the flange of the tube mold body 2 away from the loading and unloading area.Initially, the transfer rollers 6 at both ends of the first rotating shaft 24 in the loading and unloading area are separated. After the mold body 2 passes the transfer roller 6 in the area near the flange of the loading and unloading area, the traction wheel 27 of the loading and unloading area enters the second guide groove 23. This causes the transfer rollers 6 to gradually merge, forming support for the bottom of the mold body 2. Subsequently, the traction wheel 27 in this area enters the second limiting groove 22 from the second guide groove 23. While the traction wheel 27 is in the second limiting groove 22, the transfer roller 6 remains stationary until the mold body 2 has completely moved from the transfer roller 6 in the forming area to the transfer roller 6 in the loading and unloading area. Afterward, the mold body 2 can be unloaded using specialized hoisting equipment. At this point, the transfer rollers 6 in the loading and unloading area are in a merged state, while the transfer rollers 6 in the forming area are in a separated state, preparing for subsequent loading.

[0033] After unloading, the tube mold body 2 to be formed can be placed back on the transfer rollers 6 in the loading and unloading area. By controlling the reverse rotation of the first drive source 7 and the second drive source 8, the tube mold body 2 is gradually moved onto the transfer rollers 6 in the forming area. This process is similar to the unloading process described above. The transfer rollers 6 in the forming area can achieve closed support after the flange near the forming area passes through the transfer rollers 6 in the forming area. This process is achieved by the traction wheel 27 of the forming area entering the first guide groove 21. The transfer rollers 6 in the loading and unloading area can achieve outward opening before the flange away from the forming area passes through the transfer rollers 6 in the loading and unloading area. This process is achieved by the traction wheel 27 of the loading and unloading area disengaging from the second guide groove 23. When disengaging, the second elastic element 44 also gradually returns to its original position. After disengagement, the preload force of the second elastic element 44 can increase the stability of the transfer rollers 6, ensuring... The traction wheel 27 in this area can correspond to the second guide groove 23, which facilitates subsequent entry into the second guide groove 23. After the tube mold body 2 is fully entered into the forming area, the moving roller 19 corresponds to the inclined groove 16 again, the first elastic element 18 is reset, and the guide plate 15 is driven to move outward and reset by multiple first elastic elements 18. Then, the guide plate 15 drives the traction wheel 27 and the traction frame 25 to move outward through the first limiting groove 20, thereby pulling the traction plate 26 to move outward. The lifting arm 42 cooperates with the convex shaft 43 to lift the movable inclined frame 38 again, and the material transfer roller 6 is unlocked. Under the pressure of the tube mold body 2 and the traction force of the traction plate 26 on the material transfer roller 6, the material transfer roller 6 in the forming area moves outward and opens. The tube mold body 2 falls and is supported by the support roller 5. Then, the pressure roller body 10 is fixed again near the connecting shaft 30 of the loading and unloading area. Finally, the forming operation can be carried out.

[0034] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A wear-resistant pressure roller device with controllable rolling pattern adaptable to different pipe diameters, characterized in that, It includes a base and a tube mold body. One end of the base is a forming area and the other end is a loading and unloading area. Support rollers are installed on both sides of the forming area to support the tube mold body and drive the tube mold body to rotate. A pair of first columns are installed on the side of the forming area. A swing arm is rotatably mounted on the side of the first column. A pressure roller body located inside the tube mold body is rotatably mounted on the end of the two swing arms away from the first column. The end of the pressure roller body near the loading and unloading area is connected to the swing arm through a quick-release structure. It also includes a material transfer mechanism, which includes a first rotating shaft disposed in the forming area and the loading / unloading area. Conical material transfer rollers are symmetrically and movably mounted on both ends of the first rotating shaft. A traction frame corresponding to the material transfer rollers is movably mounted on the base along the width direction of the base. The upper end of the traction frame is rotatably connected to one end of the material transfer roller. An installation groove is provided on the inner side of the base. Side plates are symmetrically mounted on opposite sides of the cavity of the installation groove. A bevel is provided at the end of the side plate away from the loading / unloading area and in the middle. Guide plates are symmetrically and movably connected to opposite sides of the two side plates. Moving rollers corresponding to the bevels are rotatably mounted on the sidewalls at both ends of the guide plates. The top of the guide plate... The part is provided with a first limiting groove, and the bottom of the traction frame is provided with a traction wheel extending to the inside of the mounting groove. The lower end of the traction wheel in the forming area is located inside the first limiting groove. It is configured such that when the moving roller moves from the inclined groove to the side of the side plate, the guide plate can drive the moving roller in the forming area to move along the width direction of the base through the first limiting groove, thereby driving the material transfer roller in the forming area to support the tube mold body. The mounting groove is provided with a drive mechanism for driving the guide plate to move, and the base is provided with a second drive source for driving the first rotating shaft to rotate, thereby transferring the tube mold body from the material transfer roller in the forming area to the material transfer roller in the loading and unloading area. It also includes a clearance guide assembly for controlling the material transfer rollers to avoid the end flange of the tube mold body. The clearance guide assembly includes a first guide groove that is inclined in a direction away from the loading and unloading area and toward the side plate. The top of the guide plate is provided with a second limiting groove that is parallel to the first limiting groove. The end of the second limiting groove near the loading and unloading area is provided with a second guide groove that is inclined toward the side plate. The traction wheel of the loading and unloading area corresponds to the end of the second guide groove that is away from the second limiting groove in the initial state. Initially, the second guide groove and the first guide groove are located between the two flanges at both ends of the tube mold body.

2. The wear-resistant pressure roller device with controllable rolling pattern for different pipe diameters as described in claim 1, characterized in that: The driving mechanism includes a lead screw rotatably disposed at the lower end of the inner side of the mounting groove, a first driving source for driving the lead screw to rotate at one end of the base, a movable frame that is threadedly engaged with the lead screw and is movably disposed on the inner side of the mounting groove along the length direction of the base, and a traction arm that is movably inserted into the movable frame is disposed on the side of the guide plate away from the side plate.

3. The wear-resistant pressure roller device with controllable rolling pattern for different pipe diameters as described in claim 2, characterized in that: The outer side of the traction arm is fitted with a first elastic element located between the moving frame and the guide plate.

4. The wear-resistant pressure roller device with controllable rolling pattern for different pipe diameters as described in claim 1, characterized in that: A second elastic element is sleeved on the outer side of the middle part of the first rotating shaft in the loading and unloading area, located between the two material transfer rollers.

5. The wear-resistant pressure roller device with controllable rolling pattern for different pipe diameters according to claim 2, characterized in that: The transfer roller is provided with a reinforcing component for increasing the friction between the transfer roller and the first rotating shaft. The reinforcing component includes an even number of mounting cavities evenly arranged on the inner periphery of the transfer roller. An inclined movable frame is rotatably arranged inside the mounting cavity. A rubber roller corresponding to the outer wall of the first rotating shaft is rotatably arranged at one end of the movable frame near the inner side of the transfer roller. A torsion spring is provided at the rotation point between the movable frame and the inner wall of the mounting cavity.

6. The wear-resistant pressure roller device with controllable rolling pattern for different pipe diameters as described in claim 5, characterized in that: The material transfer roller is provided with an unlocking component, which includes a sliding cavity disposed at one end of the material transfer roller, a traction disc corresponding to the sliding cavity being movably sleeved at the end of the first rotating shaft, one end of the traction disc being movably connected to the inner side of the sliding cavity, the upper end of the traction frame being rotatably disposed on the outer side of the traction disc, a second adjusting arm extending to the inner side of the mounting cavity being disposed at one end of the traction disc, a convex shaft corresponding to the second adjusting arm being disposed on the side wall of the movable inclined frame, and a conical lifting arm corresponding to the convex shaft being disposed at one end of the second adjusting arm.

7. The wear-resistant pressure roller device with controllable rolling pattern for different pipe diameters as described in claim 6, characterized in that: The first column is a hollow structure. A first hydraulic cylinder is hinged to the inner side of the first column. One end of the swing arm extends to the inner side of the first column and is hinged to the output end of the first hydraulic cylinder. An end seat is provided at the end of the swing arm away from the first column. A connecting shaft is provided at both ends of the pressure roller body. One end of the connecting shaft corresponds to the inner wall of the flange at the end of the tube mold body. The connecting shaft and the inner side of the end seat are rotatably connected by a bearing.

8. The wear-resistant pressure roller device with controllable rolling pattern for different pipe diameters according to claim 7, characterized in that: The quick-release structure includes a hydraulic cylinder hinged to one end of a swing arm near the loading / unloading area. The end of the swing arm near the loading / unloading area away from the first column is an arc-shaped structure adapted to the end seat. A pressure plate adapted to the end seat is hinged to one side of the upper end of the arc-shaped structure, and the output end of the hydraulic cylinder is hinged to the pressure plate.

9. The wear-resistant pressure roller device with controllable rolling pattern for different pipe diameters as described in claim 8, characterized in that: The inner side of the first column is threaded with a limiting screw that corresponds to the end of the swing arm away from the pressure roller body and is used to limit the end of the swing arm.

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