Thickness-adjustable forming device for MPP electric power tube
The MPP power tube forming device, which incorporates an adjustment unit and a cooling unit, solves the problem of thickness adjustment difficulties in traditional devices, achieving precise adjustment and efficient cooling, thereby improving production efficiency and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-24
AI Technical Summary
Existing MPP power pipe forming equipment is cumbersome, time-consuming, and labor-intensive when adjusting the pipe thickness, which affects production efficiency and cost.
An adjustable thickness forming device for MPP power pipes, including an adjustment unit and a cooling unit, was designed. The device expands the expansion plate by driving the threaded rod to rotate through a motor, precisely adjusts the pipe thickness, and improves production efficiency through spray cooling.
It enables flexible and precise adjustment of the thickness of MPP power pipes and efficient cooling, simplifies the production process, reduces labor and time costs, and improves production efficiency.
Smart Images
Figure CN224028332U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of MPP power pipe processing technology, specifically to an adjustable thickness forming device for MPP power pipes. Background Technology
[0002] MPP power conduit, scientifically known as modified polypropylene (MPP) power cable protection pipe, has become the ideal choice for ductwork of high-voltage transmission lines and cables above 10KV due to its excellent high-temperature resistance and outstanding external pressure resistance. In the precise production process of MPP power conduit, accurate control of the pipe thickness is key to ensuring its superior quality, stable performance, and reliability, directly affecting the safe and efficient operation of the power transmission system.
[0003] Currently, in the production of MPP power pipes, existing forming equipment has revealed some significant shortcomings in accurately controlling pipe thickness. Traditional forming dies face numerous challenges in thickness adjustment, making the process extremely difficult. In actual production, it is often necessary to change dies of different specifications to achieve thickness variations. However, this method is not only cumbersome and complex, consuming significant time and labor costs, but also significantly extends the entire production cycle, further increasing production costs and negatively impacting production efficiency and economic benefits.
[0004] Therefore, we propose an adjustable thickness forming device for MPP power pipes to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide an adjustable thickness forming device for MPP power pipes to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable thickness forming device for MPP power pipes, comprising an extrusion shell and support legs, wherein the support legs are fixedly connected to the bottom of the extrusion shell, and an adjustment device is installed inside the extrusion shell, the adjustment device comprising an adjustment unit and a cooling unit, wherein the adjustment unit is installed inside the extrusion shell, and the cooling unit is installed on the front side of the extrusion shell;
[0007] The adjustment unit includes an extrusion groove located inside an extrusion housing. A motor is mounted on the back of the extrusion housing, and a threaded rod is fixedly connected to the output shaft of the motor. A support plate is fixedly connected inside the extrusion housing, and a connecting block is fixedly connected to the outer surface of the support plate. A connecting plate is movably connected to the outer side of the connecting block, and an expansion plate is movably connected to the other end of the connecting plate. A fixing strip is fixedly connected to the inner side of the expansion plate, and an expansion groove is formed inside the fixing strip. A movable ring is movably connected to the outer surface of the threaded rod, and a fixing block is fixedly connected to the outer side of the movable ring. A transmission plate is movably connected to the outer surface of the fixing block.
[0008] Preferably, a stop is installed at the end of the threaded rod away from the motor.
[0009] Preferably, a feeding port is provided on the top of the extrusion shell.
[0010] Preferably, the cooling unit includes a molding shell disposed on the front side of the extrusion shell. A water storage tank is fixedly connected to the top of the molding shell. A water supply pipe is fixedly connected to the side of the water storage tank. A water distribution pipe is fixedly connected to the bottom of the water supply pipe. An annular pipe is fixedly connected to the outer side of the water distribution pipe. A nozzle is fixedly connected to the inner side of the annular pipe. A water guiding slope is fixedly connected to the bottom surface of the molding shell. A water storage tank is provided at the bottom of the molding shell. A return water pipe is fixedly connected to the side of the water storage tank.
[0011] Preferably, an installation plate is fixedly connected to the outer surface of the water distribution pipe, and the top of the installation plate is fixedly connected to the top surface inside the molded shell.
[0012] Preferably, the nozzles are arranged in a circle with the center of the annular tube as the center.
[0013] Preferably, a connecting plate is fixedly connected to the front side of the extruded shell, and the other end of the connecting plate is connected to the molding shell.
[0014] Preferably, a return water pump is installed inside the water storage tank.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. This MPP power pipe adjustable thickness forming device incorporates an adjustment unit. When precise thickness adjustment of the MPP power pipe is required, simply start the motor. The motor drives the threaded rod to rotate synchronously, causing the moving ring to move smoothly along the axial direction on the outer surface of the threaded rod. This movement of the moving ring displaces the fixed block, which in turn moves the connecting rod flexibly within the expansion groove. As the connecting rod moves, the expansion plate is gradually expanded outwards. Through this series of continuous actions, the thickness of the MPP power pipe can be flexibly and precisely adjusted to meet different production needs.
[0017] 2. The MPP power pipe adjustable thickness forming device, by installing a cooling unit, then transfers the extruded MPP power pipe to the inside of the forming shell through the extrusion shell, then transfers water from the water storage tank to the inside of the water distribution pipe through the water supply pipe, then to the inside of the annular pipe through the water distribution pipe, and then sprays the outer surface of the MPP power pipe with a nozzle to cool it, thereby completing the manufacturing and forming of the MPP power pipe. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a cross-sectional view of the internal structure of the molded shell of this utility model;
[0020] Figure 3 This is a schematic diagram of the cooling unit structure of this utility model;
[0021] Figure 4 This is a cross-sectional view of the internal structure of the extruded shell of this utility model.
[0022] In the diagram: 1. Extrusion shell; 2. Support leg; 3. Feed port; 4. Extrusion groove; 5. Motor; 6. Support plate; 7. Threaded rod; 8. Connecting block; 9. Connecting plate; 10. Expansion plate; 11. Fixing strip; 12. Expansion groove; 13. Transmission plate; 14. Moving ring; 15. Fixing block; 16. Connecting plate; 17. Molding shell; 18. Water storage tank; 19. Water supply pipe; 20. Mounting plate; 21. Water distribution pipe; 22. Ring pipe; 23. Nozzle; 24. Water guide slope; 25. Water storage tank; 26. Return water pipe. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figures 1-4 This utility model provides a technical solution: an MPP power pipe adjustable thickness forming device, including an extrusion shell 1 and a support leg 2. The support leg 2 is fixedly connected to the bottom of the extrusion shell 1. An adjustment device is installed inside the extrusion shell 1. The adjustment device includes an adjustment unit and a cooling unit. The adjustment unit is installed inside the extrusion shell 1, and the cooling unit is installed on the front of the extrusion shell 1.
[0025] The adjustment unit includes an extrusion groove 4, which is located inside the extrusion housing 1. A motor 5 is mounted on the back of the extrusion housing 1. The output shaft of the motor 5 is fixedly connected to a threaded rod 7. A support plate 6 is fixedly connected inside the extrusion housing 1. A connecting block 8 is fixedly connected to the outer surface of the support plate 6. A connecting plate 9 is movably connected to the outer side of the connecting block 8. An expansion plate 10 is movably connected to the other end of the connecting plate 9. A fixing strip 11 is fixedly connected to the inner side of the expansion plate 10. An expansion groove 12 is formed inside the fixing strip 11. A movable... Ring 14, the outer fixed connection point of the movable ring 14 has a fixed block 15, and the outer surface of the fixed block 15 is movably connected to the transmission plate 13. Thus, by installing the adjustment unit, when it is necessary to adjust the thickness of the MPP power pipe, the motor 5 is started, so that the motor 5 drives the threaded rod 7 to rotate, and then the movable ring 14 moves on the outer surface of the threaded rod 7. Then the fixed block 15 drives the connecting rod to move inside the expansion groove 12, thereby expanding the expansion plate 10, so that the thickness of the MPP power pipe can be adjusted.
[0026] A stop is installed at the end of the threaded rod 7 away from the motor 5 to prevent the moving ring 14 from moving excessively, which would cause the device to malfunction.
[0027] A feeding port 3 is provided on the top of the extrusion shell 1, so that the molding material is added into the interior of the extrusion groove 4 through the feeding port 3, thereby completing the processing of the MPP power pipe through the extrusion shell 1.
[0028] The cooling unit includes a molding shell 17, which is located on the front of the extrusion shell 1. A water tank 18 is fixedly connected to the top of the molding shell 17. A water supply pipe 19 is fixedly connected to the side of the water tank 18. A water distribution pipe 21 is fixedly connected to the bottom of the water supply pipe 19. An annular pipe 22 is fixedly connected to the outside of the water distribution pipe 21. A nozzle 23 is fixedly connected to the inside of the annular pipe 22. A water guiding ramp 24 is fixedly connected to the bottom of the molding shell 17. A water storage tank 25 is provided at the bottom of the molding shell 17. A return water pipe 26 is fixedly connected to the side of the water storage tank 25. By installing the cooling unit, the MPP power pipe at the extrusion point is transferred to the inside of the molding shell 17 through the extrusion shell 1. Then, the water in the water tank 18 is transferred to the inside of the water distribution pipe 21 through the water supply pipe 19. Then, the water is transferred to the inside of the annular pipe 22 through the water distribution pipe 21. Finally, the nozzle 23 sprays and cools the outer surface of the MPP power pipe, thereby completing the manufacturing and molding of the MPP power pipe.
[0029] A mounting plate 20 is fixedly connected to the outer surface of the water distribution pipe 21. The top of the mounting plate 20 is fixedly connected to the top surface inside the molded housing 17, thereby supporting the water distribution pipe 21 through the mounting plate 20.
[0030] The nozzles 23 are arranged in a circle around the center of the annular tube 22, so that when the MPP power tube passes through the inside of the molded housing 17, the outer surface of the MPP power tube can be sprayed evenly, thereby improving the quality of the MPP power tube.
[0031] A connecting plate 16 is fixedly connected to the front of the extrusion shell 1, and the other end of the connecting plate 16 is connected to the molding shell 17, thereby connecting the extrusion shell 1 and the molding shell 17 by installing the connecting plate 16.
[0032] The water storage tank 25 is equipped with a return water pump. By starting the return water pump, the water collected inside the water storage tank 25 is transferred to the water storage tank 18 through the return water pipe 26, so that it can be reused and resources can be avoided.
[0033] Working principle: When the thickness of the MPP power pipe needs to be adjusted, the motor 5 is started, which drives the threaded rod 7 to rotate. This causes the moving ring 14 to move on the outer surface of the threaded rod 7. Then, the fixed block 15 drives the connecting rod to move inside the expansion groove 12, thereby expanding the expansion plate 10. This allows for the adjustment of the thickness of the MPP power pipe. The extruded MPP power pipe is then transferred to the molding shell 17 through the extrusion shell 1. Water from the water tank 18 is then transferred to the distribution pipe 21 through the water supply pipe 19, and then to the annular pipe 22 through the distribution pipe 21. The outer surface of the MPP power pipe is then sprayed and cooled by the nozzle 23. The water collected in the water tank 25 is transferred to the water tank 18 through the return water pipe 26 by starting the return water pump, thus allowing for reuse and avoiding resource waste.
[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. An adjustable thickness forming device for MPP power pipes, comprising an extrusion shell (1) and support legs (2), characterized in that: The support leg (2) is fixedly connected to the bottom of the extrusion shell (1). An adjustment device is installed inside the extrusion shell (1). The adjustment device includes an adjustment unit and a cooling unit. The adjustment unit is installed inside the extrusion shell (1), and the cooling unit is installed on the front of the extrusion shell (1). The adjustment unit includes an extrusion groove (4), which is located inside the extrusion housing (1). A motor (5) is located on the back of the extrusion housing (1). A threaded rod (7) is fixedly connected to the output shaft of the motor (5). A support plate (6) is fixedly connected inside the extrusion housing (1). A connecting block (8) is fixedly connected to the outer surface of the support plate (6). A connecting plate (9) is movably connected to the outer side of the connecting block (8). An expansion plate (10) is movably connected to the other end of the connecting plate (9). A fixing strip (11) is fixedly connected to the inner side of the expansion plate (10). An expansion groove (12) is opened inside the fixing strip (11). A moving ring (14) is movably connected to the outer surface of the threaded rod (7). A fixing block (15) is fixedly connected to the outer side of the moving ring (14). A transmission plate (13) is movably connected to the outer surface of the fixing block (15).
2. The MPP power pipe adjustable thickness forming device according to claim 1, characterized in that: A stop is installed at the end of the threaded rod (7) away from the motor (5).
3. The MPP power pipe adjustable thickness forming device according to claim 1, characterized in that: The extrusion shell (1) is provided with a feeding port (3) on its upper part.
4. The MPP power pipe adjustable thickness forming device according to claim 1, characterized in that: The cooling unit includes a molding shell (17) disposed on the front of the extrusion shell (1). A water storage tank (18) is fixedly connected to the top of the molding shell (17). A water supply pipe (19) is fixedly connected to the side of the water storage tank (18). A water distribution pipe (21) is fixedly connected to the bottom of the water supply pipe (19). An annular pipe (22) is fixedly connected to the outside of the water distribution pipe (21). A nozzle (23) is fixedly connected to the inside of the annular pipe (22). A water guiding ramp (24) is fixedly connected to the bottom of the molding shell (17). A water storage tank (25) is opened at the bottom of the molding shell (17). A return water pipe (26) is fixedly connected to the side of the water storage tank (25).
5. The MPP power pipe adjustable thickness forming device according to claim 4, characterized in that: The outer surface of the water distribution pipe (21) is fixedly connected to an installation plate (20), and the top of the installation plate (20) is fixedly connected to the top surface inside the molded shell (17), thereby supporting the water distribution pipe (21) through the installation plate (20).
6. The MPP power pipe adjustable thickness forming device according to claim 4, characterized in that: The nozzles (23) are arranged in a circle with the center of the annular tube (22) as the center.
7. The MPP power pipe adjustable thickness forming device according to claim 1, characterized in that: A connecting plate (16) is fixedly connected to the front side of the extruded shell (1), and the other end of the connecting plate (16) is connected to the molding shell (17).
8. The MPP power pipe adjustable thickness forming device according to claim 4, characterized in that: A return water pump is installed inside the water storage tank (25).