A support device for high-speed centrifugal molding dies

Abstract

This invention provides a support device for high-speed centrifugal molding dies, belonging to the technical field of high-speed centrifugal molding die technology. It addresses the technical problem of inconvenient assembly and disassembly between existing support devices and the die, which affects production efficiency. The device includes a bearing housing with a hollow shaft rotatably mounted inside. A transmission box is connected to the end of the hollow shaft, and a rotating tube is slidably mounted at one end of the transmission box. A top shaft for outlet tube is slidably mounted inside the rotating tube. The transmission box contains a transmission mechanism, a circulating cooling mechanism, and a pushing mechanism. This invention eliminates the need to adjust the axis position during connection with the die, making connection more convenient and improving die replacement efficiency, thus increasing production efficiency. It lubricates and cools friction-generating components, reducing wear between components and extending their service life. It also achieves automatic demolding, improving product demolding efficiency and further enhancing production efficiency.

Description

Technical Field

[0001] This invention belongs to the field of high-speed centrifugal molding mold technology, and relates to a support device for high-speed centrifugal molding mold. Background Technology

[0002] High-speed centrifugal molding is a newly emerging manufacturing process for fiberglass products in recent years, such as the production of fiberglass reinforced plastic (FRP) pipes. FRP pipes are a new type of composite material made with resin as the matrix material, glass fiber and its products as reinforcing materials, and quartz sand as filler. During the manufacturing process, resin, glass fiber, and filler are added to a rotating mold cavity in a certain proportion and method. The centrifugal force generated by high-speed rotation compresses and compacts the material, solidifying it into shape. Centrifugal FRP pipes have many advantages. Compared with concrete pipes, they are stronger, lighter, more corrosion-resistant, wear-resistant, energy-saving, durable, and have lower overall engineering costs. Especially for large-diameter pipes, they are characterized by high rigidity, low cost, and the pipe wall can be designed with a multi-layered structure according to its function. Centrifugal pipe manufacturing offers stable quality, less raw material loss, and its overall cost is lower than that of steel pipes.

[0003] In high-speed centrifugal casting, the mold needs to be rotated at a high speed. Existing molds are generally supported and driven to rotate by rotating rollers on both sides. When changing the mold, the disassembly and reinstallation of the mold are complicated and difficult to operate. Moreover, after reinstalling the mold, it is necessary to readjust it, which takes a long time. Therefore, the existing mold support device is inconvenient to disassemble and assemble with the mold, and changing the mold takes a lot of time, which is not conducive to improving production efficiency.

[0004] Based on this, we designed a support device for high-speed centrifugal molding dies. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a support device for high-speed centrifugal molding dies. The technical problem this device aims to solve is: how to achieve rapid assembly and disassembly between the support device and the die, thereby improving production efficiency.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A support device for a high-speed centrifugal molding die includes a bearing housing, a self-aligning bearing fixed inside the bearing housing, a hollow shaft fixed to the inner ring of the self-aligning bearing, a first bearing cover plate and a second bearing cover plate fixed on both sides of the bearing housing, a fixed seat fixed on the first bearing cover plate, a hydraulic cylinder mounted on the fixed seat, the piston rod of the hydraulic cylinder located inside the hollow shaft, a pulley fixed to the outer side of the hollow shaft, a transmission box connected to the end of the hollow shaft, the end of the hollow shaft extending into the transmission box and rotatably connected to the transmission box, a locking mechanism provided on the outer side of the transmission box, a long slot opened at the end of the transmission box away from the hollow shaft, a rotating tube slidably arranged in the long slot, an outlet tube top shaft slidably arranged inside the rotating tube, a connecting plate fixed to the end of the rotating tube, a plurality of equally spaced connecting slots opened on the connecting plate, a push plate fixed to the end of the outlet tube top shaft, a transmission mechanism for connecting the hollow shaft and the rotating tube provided in the transmission box, a circulating cooling mechanism provided on the transmission box and the self-aligning bearing, and a pushing mechanism provided between the hydraulic cylinder and the outlet tube top shaft.

[0008] The working principle of this invention is as follows: When connecting the mold, the bearing seat can be fixed, and then the connecting plate is connected to the end of the mold with bolts. Since the transmission box can rotate along the hollow shaft, and the rotating tube can move in the long slot, the connecting plate can move within a certain range when the hollow shaft is stationary. When connecting the mold end to the connecting plate, it is not necessary to ensure that the rotation axis of the mold is aligned with the rotation axis of the hollow shaft, which reduces the installation difficulty, shortens the installation time, and facilitates the operator in connecting the mold, thereby improving production efficiency. After connecting the mold and the connecting plate, the position of the transmission box is fixed by the locking mechanism. After completion, the drive equipment can rotate the pulley, which in turn drives the hollow shaft to rotate. Then, the transmission mechanism drives the rotating tube and connecting plate to rotate, thereby driving the mold to rotate. During operation, the circulating cooling mechanism can circulate oil into the self-aligning bearing and the transmission box, which can improve the cooling effect of the connecting parts and lubricate the connecting parts to reduce wear. After the high-speed centrifugal casting is completed, the hydraulic cylinder drives the pushing mechanism to push the outer side of the axial rotating tube at the top of the tube. The movement of the push plate pushes the cast product outward, increasing the demolding speed and further improving production efficiency.

[0009] The transmission mechanism includes a first bearing fixed to the outside of the hollow shaft, and the outer ring of the first bearing is fixedly connected to the side wall of the transmission box. A first bevel gear is also sleeved on the outside of the hollow shaft. Two fixed rods are fixed inside the transmission box, and a second bearing is embedded on the fixed rod. A sliding rod is rotatably arranged between the two second bearings. A second bevel gear is fixed on the sliding rod and meshes with the first bevel gear. A third bevel gear is slidably arranged on the sliding rod. A sliding hole is opened in the middle of the third bevel gear, and the sliding rod passes through the sliding hole. A fourth bevel gear is fixed on the outside of the end of the rotating tube away from the connecting plate and meshes with the third bevel gear. A right-angle rod is arranged between the fourth bevel gear and the third bevel gear, and fixed rings are fixed at both ends of the right-angle rod. The two fixed rings are rotatably sleeved on the fourth bevel gear and the third bevel gear, respectively.

[0010] With the above structure, in actual use, the hollow shaft rotates, driving the first bevel gear to rotate, and then the second bevel gear drives the slide rod and the third bevel gear to rotate. The third bevel gear meshes with the fourth bevel gear, which can further drive the fourth bevel gear and the rotating tube to rotate. Moreover, the fourth bevel gear and the third bevel gear are connected by a right-angle rod and a fixing ring, so that the third bevel gear will follow the fourth bevel gear to move and always maintain a meshing state with the fourth bevel gear.

[0011] The transmission mechanism also includes a sealing assembly for sealing the long slot. The sealing assembly includes a sealing plate with a third bearing embedded in it. The inner ring of the third bearing is fixed to the outer side of the rotating tube. Two symmetrically distributed mounting slots are provided on the sealing plate. Several fixing bolts with nuts are provided on the outer side of the transmission box, and the fixing bolts pass through the mounting slots at the corresponding positions. A sealing ring is fixed on the outer side of the long slot, and the sealing ring abuts against the side wall of the sealing plate.

[0012] With the above structure, when connecting the mold, the nuts on the fixing bolts can be loosened, and the sealing plate can be slid along the long groove according to the position of the mold, which will drive the rotating tube and the connecting plate to move, so that the connecting plate is aligned with the mold installation position. Then, the nuts on the fixing bolts are tightened to fix the sealing plate, which can also fix the position of the rotating tube. Under the action of the sealing ring, the inside of the transmission box is sealed.

[0013] The locking mechanism includes a sleeve fixed to the outside of the transmission box, an L-shaped rod inserted in the sleeve, a fan-shaped block fixed to the end of the L-shaped rod away from the sleeve, and a number of locking holes opened on the fan-shaped block. A fixed wheel is fixed to the outside of the second bearing cover plate, and a number of equally spaced arc-shaped slots are opened on the edge of the fixed wheel. Locking bolts are fixed between the locking holes and the corresponding arc-shaped slots.

[0014] With the above structure, the L-shaped rod can be removed before connecting the mold, at which point the transmission box can rotate. After connecting the mold, one end of the L-shaped rod can be inserted into the insert sleeve, and the other end can be fixed to the fixing wheel by locking bolts, thereby fixing the transmission box again and preventing the transmission box from rotating during use. In addition, the sector block is provided with multiple locking holes, which can avoid the problem of locking bolts not being able to be installed due to the gap between the locking holes and the arc groove.

[0015] The circulating cooling mechanism includes an oil inlet pipe and an oil outlet pipe with valves installed. A connecting cavity is opened inside the first bearing cover plate, which is connected to one side of the self-aligning bearing. The oil inlet pipe is connected to the outer opening of the connecting cavity. A through hole is opened on the bearing seat, and a first connecting pipe is inserted into the through hole. The first connecting pipe and the oil inlet pipe are located on opposite sides of the self-aligning bearing, respectively. A second connecting pipe is connected to one side of the transmission box, and a flexible hose is connected between the second connecting pipe and the first connecting pipe. The oil outlet pipe is connected to the side of the transmission box away from the second connecting pipe. The first bearing and the third bearing are both single-sided sealed bearings, and the sealing surface faces the outside of the transmission box.

[0016] With the above structure, lubricating oil can be injected into the oil inlet pipe during use. The lubricating oil flows from one side of the self-aligning bearing to the other side, then from the first connecting pipe to the hose, and then from the second connecting pipe into the transmission box to lubricate the various components in the transmission box, as well as the first and third bearings. Finally, it is discharged from the oil outlet pipe. Throughout the process, the lubricating oil can lubricate the self-aligning bearing and various components inside the transmission box, reducing wear. Moreover, the circulating lubricating oil can cool down the various components that rub against each other, thus improving the service life of each component.

[0017] The pushing mechanism includes a first piston slidably disposed inside a hollow shaft. The first piston has a cavity inside. The piston rod end of a hydraulic cylinder is located inside the cavity, and a push-pull ring is fixed to the piston rod end of the hydraulic cylinder. A first magnetic ring is fixed to the side of the push-pull ring near the hydraulic cylinder. A second magnetic ring is fixed to the side wall of the cavity opposite the first magnetic ring. The second magnetic ring and the first magnetic ring have the same pole facing each other. A second piston is slidably disposed inside the rotating tube, and the second piston is fixed to the end of the top shaft of the outlet tube.

[0018] With the above structure, after high-speed centrifugal casting is completed, the mold stops rotating, oil injection stops, and the oil inlet and outlet pipes are closed. At this time, the hydraulic cylinder pushes the first piston to move closer to the transmission box. Through the squeezing effect of the lubricating oil, the second piston is pushed outward, which in turn drives the tube top shaft and push plate to push into the mold, demolding the cast steel pipe and increasing the demolding speed. After demolding, the hydraulic cylinder is retracted. At this time, the push-pull ring drives the first magnetic ring to move closer to the second magnetic ring. Through the repulsive force between the first and second magnetic rings, the first and second pistons are reset. After reset, the push-pull ring and the first piston do not contact each other. When the hollow shaft rotates, the first piston rotates with it, and there is no friction between the first piston and the push-pull ring, which will not cause wear on the parts.

[0019] Compared with existing technologies, the support device for high-speed centrifugal molding dies has the following advantages:

[0020] 1. The bearing housing, hollow shaft, transmission box, transmission mechanism, rotating tube and connecting plate support the end of the mold and drive the mold to rotate. Moreover, the connection with the mold does not require adjustment of the axis position, making the connection more convenient and improving the efficiency of mold replacement, thereby improving production efficiency.

[0021] 2. The circulating cooling mechanism lubricates and cools the components that generate friction, making the components more stable during operation, reducing wear between components, and improving the service life of each component.

[0022] 3. By using a push mechanism and hydraulic cylinder, the automatic demolding function is achieved, which improves the efficiency of product demolding and further enhances production efficiency. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the planar structure of the present invention;

[0025] Figure 3 This is a cross-sectional view of the hollow shaft in this invention;

[0026] Figure 4 This is a schematic diagram of the transmission box in this invention;

[0027] Figure 5 This is a schematic diagram of the internal structure of the transmission box in this invention;

[0028] Figure 6 This is a schematic diagram of the connection between the transmission box and the hollow shaft in this invention;

[0029] Figure 7This is a schematic diagram of the connection between the sealing plate and the rotating tube in this invention;

[0030] Figure 8 This is a schematic diagram of the locking mechanism in this invention;

[0031] Figure 9 This is a partial structural schematic diagram of the locking mechanism in this invention;

[0032] In the diagram: 1. Bearing housing; 2. Self-aligning bearing; 3. Hollow shaft; 4. First bearing cover plate; 5. Second bearing cover plate; 6. Fixed seat; 7. Hydraulic cylinder; 8. Pulley; 9. Transmission box; 10. Long slot; 11. Rotating tube; 12. Outlet tube top shaft; 13. Transmission mechanism; 1301. First bearing; 1302. First bevel gear; 1303. Fixed rod; 1304. Second bearing; 1305. Sliding rod; 1306. Second bevel gear; 1307. Third bevel gear; 1308. Sliding hole; 1309. Right angle rod; 1310. Fixed ring; 1311. Fourth bevel gear; 1312. Sealing plate; 1313. Third bearing; 1314. Mounting slot; 131 5. Fixing bolt; 1316. Sealing ring; 14. Connecting plate; 15. Circulating cooling mechanism; 1501. Connecting cavity; 1502. Oil inlet pipe; 1503. First connecting pipe; 1504. Second connecting pipe; 1505. Hose; 1506. Oil outlet pipe; 16. Pushing mechanism; 1601. First piston; 1602. Push-pull ring; 1603. Second piston; 1604. First magnetic ring; 1605. Second magnetic ring; 17. Locking mechanism; 1701. Sleeve; 1702. L-shaped rod; 1703. Fixing wheel; 1704. Arc-shaped groove; 1705. Fan-shaped block; 1706. Locking hole; 1707. Locking bolt; 18. Connecting groove; 19. Push plate. Detailed Implementation

[0033] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0034] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0035] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0036] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0037] Please see Figure 1-9This embodiment provides a support device for a high-speed centrifugal molding die, including a bearing seat 1, a self-aligning bearing 2 fixed inside the bearing seat 1, a hollow shaft 3 fixed to the inner ring of the self-aligning bearing 2, a first bearing cover plate 4 and a second bearing cover plate 5 fixed on both sides of the bearing seat 1, a fixing seat 6 fixed on the first bearing cover plate 4, a hydraulic cylinder 7 mounted on the fixing seat 6, and the piston rod of the hydraulic cylinder 7 located inside the hollow shaft 3, a pulley 8 fixed to the outer side of the hollow shaft 3, a transmission box 9 connected to the end of the hollow shaft 3, the end of the hollow shaft 3 extending into the transmission box 9 and rotatably connected to the transmission box 9, and a locking mechanism 17 provided on the outer side of the transmission box 9. The end of the transmission box 9 furthest from the hollow shaft 3 has a long slot 10, and a rotating tube 11 is slidably arranged in the long slot 10. An outlet top shaft 12 is slidably arranged inside the rotating tube 11. A connecting plate 14 is fixed to the end of the rotating tube 11, and several equally spaced connecting slots 18 are opened on the connecting plate 14. A push plate 19 is fixed to the end of the outlet top shaft 12. The transmission box 9 is equipped with a transmission mechanism 13 for connecting the hollow shaft 3 and the rotating tube 11. A circulating cooling mechanism 15 is provided on the transmission box 9 and the self-aligning bearing 2. A pushing mechanism 16 is provided between the hydraulic cylinder 7 and the outlet top shaft 12. When connecting the mold, the bearing seat 1 can be fixed, and then the connecting plate 1... 4. The connection between the mold end and the connection plate 14 is made by bolts. Since the transmission box 9 can rotate along the hollow shaft 3 and the rotating tube 11 can move in the long slot 10, the connecting plate 14 can move within a certain range when the hollow shaft 3 is stationary. When connecting the mold end to the connecting plate 14, it is not necessary to ensure that the rotation axis of the mold is aligned with the rotation axis of the hollow shaft 3, which reduces the installation difficulty, shortens the installation time, and facilitates the connection of the mold by the operator, thereby improving production efficiency. After the mold and the connecting plate 14 are connected, the position of the transmission box 9 is fixed by the locking mechanism 17. After installation, the pulley 8 can be driven to rotate by the drive equipment. The movement of the cylinder drives the hollow shaft 3 to rotate, which in turn drives the rotating tube 11 and the connecting plate 14 to rotate via the transmission mechanism 13, thereby driving the mold to rotate. During operation, the circulating cooling mechanism 15 can circulate oil into the self-aligning bearing 2 and the transmission box 9, which can improve the cooling effect of the connecting parts and lubricate the connecting parts to reduce wear. After the high-speed centrifugal casting is completed, the hydraulic cylinder 7 drives the pushing mechanism 16 to push the tube top shaft 12 to the outside of the rotating tube 11. The movement of the push plate 19 pushes the cast product outward, increasing the demolding speed and further improving production efficiency.

[0038] The transmission mechanism 13 includes a first bearing 1301 fixed to the outside of the hollow shaft 3, and the outer ring of the first bearing 1301 is fixedly connected to the side wall of the transmission box 9. A first bevel gear 1302 is also sleeved on the outside of the hollow shaft 3. Two fixed rods 1303 are fixed inside the transmission box 9. A second bearing 1304 is embedded on the fixed rod 1303. A sliding rod 1305 is rotatably arranged between the two second bearings 1304. A second bevel gear 1306 is fixed on the sliding rod 1305 and meshes with the first bevel gear 1302. A third bevel gear 1307 is slidably arranged on the sliding rod 1305. A sliding hole 1308 is opened in the middle of the third bevel gear 1307. The sliding rod 1305 passes through the sliding hole 1308. A fourth bevel gear 1311 is fixed to the outside of the end of the rotating tube 11 away from the connecting plate 14 and meshes with the third bevel gear 1307. A right-angle rod 1309 is provided between the fourth bevel gear 1311 and the third bevel gear 1307, and a fixing ring 1310 is fixed at both ends of the right-angle rod 1309. The two fixing rings 1310 are respectively rotatably sleeved on the fourth bevel gear 1311 and the third bevel gear 1307. In actual use, the hollow shaft 3 rotates, driving the first bevel gear 1302 to rotate, and then driving the slide rod 1305 and the third bevel gear 1307 to rotate through the second bevel gear 1306. The third bevel gear 1307 meshes with the fourth bevel gear 1311, which can further drive the fourth bevel gear 1311 and the rotating tube 11 to rotate. Moreover, the fourth bevel gear 1311 and the third bevel gear 1307 are connected by the right-angle rod 1309 and the fixing ring 1310, so that the third bevel gear 1307 will follow the fourth bevel gear 1311 to translate, and always maintains a meshing state with the fourth bevel gear 1311.

[0039] The transmission mechanism 13 also includes a sealing assembly for sealing the long slot 10. The sealing assembly includes a sealing plate 1312, on which a third bearing 1313 is embedded. The inner ring of the third bearing 1313 is fixed to the outer side of the rotating tube 11. Two symmetrically distributed mounting slots 1314 are provided on the sealing plate 1312. Several fixing bolts 1315 with nuts are provided on the outer side of the transmission box 9, and the fixing bolts 1315 pass through the mounting slots 1314 at corresponding positions. A sealing ring 1316 is fixed to the outer side of the long slot 10. The sealing ring 1316 abuts against the side wall of the sealing plate 1312. When connecting the mold, the nut on the fixing bolt 1315 can be loosened, and the sealing plate 1312 can be slid along the long slot 10 according to the position of the mold, which will drive the rotating tube 11 and the connecting plate 14 to move, so that the connecting plate 14 is aligned with the mold installation position. Then the nut on the fixing bolt 1315 is tightened to fix the sealing plate 1312, and at the same time, the position of the rotating tube 11 can be fixed. Under the action of the sealing ring 1316, the inside of the transmission box 9 is sealed.

[0040] The locking mechanism 17 includes a sleeve 1701 fixed to the outside of the transmission box 9. An L-shaped rod 1702 is inserted into the sleeve 1701. A sector-shaped block 1705 is fixed to one end of the L-shaped rod 1702 away from the sleeve 1701, and the sector-shaped block 1705 has several locking holes 1706. A fixed wheel 1703 is fixed to the outside of the second bearing cover plate 5. The edge of the fixed wheel 1703 has several equally spaced arc-shaped grooves 1704, and locking bolts 1707 are fixed between the locking holes 1706 and the corresponding arc-shaped grooves 1704. Before the mold is installed, the L-shaped rod 1702 can be removed, at which point the transmission box 9 can rotate. After the mold is connected, one end of the L-shaped rod 1702 can be inserted into the insert 1701, and the other end can be fixed to the fixed wheel 1703 by the locking bolt 1707, thereby fixing the transmission box 9 again and preventing the transmission box 9 from rotating during use. In addition, the sector block 1705 is provided with multiple locking holes 1706, which can avoid the problem that the locking bolt 1707 cannot be installed due to the gap between the locking hole and 1706 and the arc groove 1704.

[0041] The circulating cooling mechanism 15 includes an oil inlet pipe 1502 and an oil outlet pipe 1506 with valves installed. A connecting cavity 1501 is formed inside the first bearing cover plate 4, communicating with one side of the self-aligning bearing 2. The oil inlet pipe 1502 is connected to the outer opening of the connecting cavity 1501. A through hole is formed on the bearing seat 1, into which a first connecting pipe 1503 is inserted. The first connecting pipe 1503 and the oil inlet pipe 1502 are located on opposite sides of the self-aligning bearing 2. A second connecting pipe 1504 is connected to one side of the transmission box 9, and a flexible hose 1505 connects the second connecting pipe 1504 and the first connecting pipe 1503. The oil outlet pipe 1506 is connected to the side of the transmission box 9 away from the second connecting pipe 1504. The first bearing 1... Both bearing 301 and the third bearing 1313 are single-sided sealed bearings, with the sealing surface facing the outside of the transmission box 9. During use, lubricating oil can be injected into the oil inlet pipe 1502. The lubricating oil flows from one side of the self-aligning bearing 2 to the other side, then flows from the first connecting pipe 1503 to the hose 1505, and then enters the transmission box 9 from the second connecting pipe 1504 to lubricate the various components in the transmission box 9, as well as the first bearing 1301 and the third bearing 1313. Finally, it is discharged from the oil outlet pipe 1506. Throughout the process, the lubricating oil can lubricate the self-aligning bearing 2 and the various components inside the transmission box 9, reducing wear. Moreover, the circulating lubricating oil can cool down the various components that rub against each other, improving the service life of each component.

[0042] The pushing mechanism 16 includes a first piston 1601 slidably disposed inside the hollow shaft 3. The first piston 1601 has a cavity inside. The piston rod end of the hydraulic cylinder 7 is located inside the cavity, and a push-pull ring 1602 is fixed to the piston rod end of the hydraulic cylinder 7. A first magnetic ring 1604 is fixed to the side of the push-pull ring 1602 near the hydraulic cylinder 7, and a second magnetic ring 1605 is fixed to the side wall of the cavity opposite the first magnetic ring 1604. The second magnetic ring 1605 and the first magnetic ring 1604 have the same pole and face each other. A second piston 1603 is slidably disposed inside the rotating tube 11, and the second piston 1603 is fixed to the end of the outlet tube top shaft 12. After high-speed centrifugal casting is completed, the mold stops rotating, oil injection stops, and the oil inlet pipe 1502 and oil outlet pipe 1506 are closed. At this time, the first piston 1601 is pushed by the hydraulic cylinder 7. 1. Move towards the transmission box 9. Through the squeezing effect of the lubricating oil, push the second piston 1603 outward, thereby driving the tube top shaft 12 and push plate 19 into the mold to demold the cast steel pipe and increase the demolding speed. After demolding, retract the hydraulic cylinder 7. At this time, the push-pull ring 1602 drives the first magnetic ring 1604 to move towards the second magnetic ring 1605. Through the repulsive force between the first magnetic ring 1604 and the second magnetic ring 1605, the first piston 1601 and the second piston 1603 are reset. After reset, the push-pull ring 1602 and the first piston 1601 do not contact each other. When the hollow shaft 3 rotates, the first piston 1601 rotates with it, and there is no friction between the first piston 1601 and the push-pull ring 1602, so as not to cause wear of parts.

[0043] The above-mentioned fixing methods are the most commonly used fixing connection methods in this field, such as welding, bolt connection, interference fit, key connection, and bonding; the above-mentioned electrical components, such as hydraulic cylinder 7, are all existing technology products that can be directly purchased and used on the market, and the specific principles will not be elaborated here.

[0044] Working principle of the invention:

[0045] When connecting the mold, the bearing seat 1 can be fixed, and then the connecting plate 14 can be connected to the end of the mold with bolts. Since the transmission box 9 can rotate along the hollow shaft 3, and the rotating tube 11 can move in the long slot 10, the connecting plate 14 can move within a certain range when the hollow shaft 3 is stationary. When connecting the end of the mold to the connecting plate 14, it is not necessary to ensure that the rotation axis of the mold is consistent with the rotation axis of the hollow shaft 3, which reduces the installation difficulty, shortens the installation time, and facilitates the operator to connect the mold, thereby improving production efficiency. After connecting the mold and the connecting plate 14, tighten the nuts on the fixing bolts 1315 to fix the sealing plate 1312, and at the same time fix the position of the rotating tube 11, and fix the sealing ring 131. Under the action of 6, the inside of the transmission box 9 is sealed. Then, one end of the L-shaped rod 1702 is inserted into the insert sleeve 1701, and the other end is fixed to the fixed wheel 1703 by the locking bolt 1707, thereby fixing the transmission box 9 again and preventing the transmission box 9 from rotating during use. Moreover, the sector block 1705 is provided with multiple locking holes 1706, which can avoid the problem of the locking bolt 1707 not being able to be installed due to the gap between the locking holes 1706 and the arc-shaped groove 1704. After installation, the drive device can drive the pulley 8 to rotate, which in turn drives the hollow shaft 3 to rotate. Then, the rotation of the hollow shaft 3 drives the first bevel gear 1302 to rotate, and then the second bevel gear 1306 drives the slide rod 1305 and the third bevel gear 1 When 307 rotates, the third bevel gear 1307 meshes with the fourth bevel gear 1311, further driving the fourth bevel gear 1311 and the rotating tube 11 to rotate. The fourth bevel gear 1311 and the third bevel gear 1307 are connected by a right-angle rod 1309 and a fixing ring 1310, allowing the third bevel gear 1307 to follow the fourth bevel gear 1311 in translation and always maintain meshing with it. The rotation of the rotating tube 11 drives the connecting plate 14 to rotate, which in turn drives the mold to rotate. During operation, lubricating oil can be injected into the oil inlet pipe 1502. The lubricating oil flows from one side of the self-aligning bearing 2 to the other side, then from the first connecting pipe 1503 to the hose 1505, and then from the second connecting pipe 1504... The lubricating oil enters the transmission box 9, lubricating all components within it, as well as the first bearing 1301 and the third bearing 1313. Finally, it exits through the oil outlet pipe 1506. Throughout this process, the lubricating oil lubricates the self-aligning bearing 2 and all components inside the transmission box 9, reducing wear. Furthermore, the circulating lubricating oil cools down components experiencing friction, extending their service life. After high-speed centrifugal casting is completed, the mold stops rotating, oil injection ceases, and the oil inlet pipe 1502 and oil outlet pipe 1506 are closed. At this point, the hydraulic cylinder 7 pushes the first piston 1601 towards the transmission box 9. The compression effect of the lubricating oil pushes the second piston 1603 outwards, thereby driving the outlet pipe top shaft 12 and the push plate 19 into the mold.The cast steel pipe is demolded at a faster speed. After demolding, the hydraulic cylinder 7 is retracted. At this time, the push-pull ring 1602 drives the first magnetic ring 1604 to move closer to the second magnetic ring 1605. The repulsive force between the first magnetic ring 1604 and the second magnetic ring 1605 drives the first piston 1601 and the second piston 1603 to reset. After resetting, the push-pull ring 1602 and the first piston 1601 are not in contact. When the hollow shaft 3 rotates, the first piston 1601 rotates with it, and there is no friction between the first piston 1601 and the push-pull ring 1602, thus preventing wear on the parts.

[0046] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A support device for high speed centrifugal forming moulds comprising a bearing block (1), characterised in that, The bearing seat (1) is internally fixed with a self-aligning bearing (2), the inner ring of the self-aligning bearing (2) is fixed with a hollow shaft (3), the two sides of the bearing seat (1) are fixed with a first bearing cover plate (4) and a second bearing cover plate (5), the first bearing cover plate (4) is fixed with a fixed seat (6), the fixed seat (6) is installed with a hydraulic cylinder (7), the piston rod of the hydraulic cylinder (7) is located in the hollow shaft (3), the outer side of the hollow shaft (3) is fixed with a belt pulley (8), the end of the hollow shaft (3) is connected with a transmission box (9), the end of the hollow shaft (3) extends into the transmission box (9) and is rotationally connected with the transmission box (9), the outer side of the transmission box (9) is provided with a locking mechanism (17), the end of the transmission box (9) away from the hollow shaft (3) is provided with a long notch (10), the long notch (10) is slidably provided with a rotating pipe (11), the rotating pipe (11) is slidably provided with a pipe top shaft (12) in the inside, the end of the rotating pipe (11) is fixed with a connecting disc (14), the connecting disc (14) is provided with a plurality of connecting grooves (18) distributed at equal intervals, the end of the pipe top shaft (12) is fixed with a push plate (19), the transmission box (9) is internally provided with a transmission mechanism (13) for connecting the hollow shaft (3) and the rotating pipe (11), the transmission box (9) and the self-aligning bearing (2) are provided with a circulating cooling mechanism (15), and the hydraulic cylinder (7) and the pipe top shaft (12) are provided with a pushing mechanism (16); The transmission mechanism (13) comprises a first bearing (1301) fixed on the outer side of the hollow shaft (3), and the outer ring of the first bearing (1301) is fixedly connected with the side wall of the transmission box (9), the outer side of the hollow shaft (3) is further provided with a first bevel gear (1302), the transmission box (9) is internally fixed with two fixed rods (1303), the fixed rods (1303) are embedded with second bearings (1304), the two second bearings (1304) are rotationally provided with a sliding rod (1305) therebetween, the sliding rod (1305) is fixedly provided with a second bevel gear (1306), and the second bevel gear (1306) is meshed with the first bevel gear (1302), the sliding rod (1305) is slidably provided with a third bevel gear (1307), the third bevel gear (1307) is provided with a sliding hole (1308) in the middle, the sliding rod (1305) passes through the sliding hole (1308), the outer side of the end of the rotating pipe (11) away from the connecting disc (14) is fixedly provided with a fourth bevel gear (1311), and the fourth bevel gear (1311) is meshed with the third bevel gear (1307), the fourth bevel gear (1311) and the third bevel gear (1307) are provided with a right angle rod (1309), and the two ends of the right angle rod (1309) are fixedly provided with fixed rings (1310), and the two fixed rings (1310) are rotationally provided on the fourth bevel gear (1311) and the third bevel gear (1307) respectively. The transmission mechanism (13) further comprises a sealing assembly for sealing the long slot (10), the sealing assembly comprising a sealing plate (1312) with a third bearing (1313) embedded thereon, the inner ring of the third bearing (1313) being fixed to the outer side of the rotating pipe (11), the sealing plate (1312) being provided with two symmetrically distributed installation grooves (1314), the outer side of the transmission box (9) being provided with a plurality of fixed bolts (1315) with nuts, the fixed bolts (1315) penetrating through the corresponding installation grooves (1314), the outer side of the long slot (10) being fixed with a sealing ring (1316) abutting against the side wall of the sealing plate (1312); The locking mechanism (17) comprises a sleeve (1701) fixed to the outer side of the transmission box (9), the sleeve (1701) being inserted with an L-shaped rod (1702), the L-shaped rod (1702) being fixed with a sector-shaped block (1705) at the end away from the sleeve (1701), the sector-shaped block (1705) being provided with a plurality of locking holes (1706), the outer side of the second bearing cover plate (5) being fixed with a fixed wheel (1703), the edge of the fixed wheel (1703) being provided with a plurality of equidistantly distributed arc-shaped notches (1704), and the locking holes (1706) and the corresponding arc-shaped notches (1704) being fixed with locking bolts (1707); The circulating cooling mechanism (15) comprises an oil inlet pipe (1502) and an oil outlet pipe (1506) provided with valves, the first bearing cover plate (4) being provided with a communication cavity (1501) inside, the communication cavity (1501) being in communication with one side of the self-aligning bearing (2), the oil inlet pipe (1502) being connected to the outer opening of the communication cavity (1501), the bearing seat (1) being provided with a through hole, the first connecting pipe (1503) being inserted into the through hole, the first connecting pipe (1503) and the oil inlet pipe (1502) being located on the two sides of the self-aligning bearing (2) respectively, the transmission box (9) being connected with a second connecting pipe (1504) on one side, the second connecting pipe (1504) and the first connecting pipe (1503) being connected with a hose (1505), the oil outlet pipe (1506) being connected to the side of the transmission box (9) away from the second connecting pipe (1504), the first bearing (1301) and the third bearing (1313) being single-sided sealed bearings, and the sealing surfaces facing the outer side of the transmission box (9). The pushing mechanism (16) comprises a first piston (1601) slidingly arranged inside the hollow shaft (3), a cavity is formed in the first piston (1601), the piston rod end of the hydraulic cylinder (7) is located inside the cavity, the piston rod end of the hydraulic cylinder (7) is fixed with a push-pull ring (1602), the side close to the hydraulic cylinder (7) of the push-pull ring (1602) is fixed with a first magnetic ring (1604), a second magnetic ring (1605) is fixed on the side wall opposite to the first magnetic ring (1604) in the cavity, the second magnetic ring (1605) is opposite to the first magnetic ring (1604) with the same polarity, and the second piston (1603) is slidingly arranged in the rotating pipe (11), and the second piston (1603) is fixed with the end of the pipe top shaft (12).

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