Anti-deformation traction device for plastic pipe production
By combining a multi-arm traction mechanism and a high-efficiency cooling system, the problems of traction force fluctuation, insufficient lateral constraint, and insufficient cooling in traditional traction machines in plastic pipe production are solved, achieving all-round stable traction and effective cooling, thus improving the production quality and stability of pipes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG YUEQING PIPE IND CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional wheeled and belt-driven traction machines in plastic pipe production suffer from problems such as fluctuating traction force, easy slippage, lack of lateral restraint and cooling mechanisms for the pipes, leading to pipe deformation and unstable quality.
The multi-arm traction mechanism, combined with drive components, hydraulic cylinders, cooling water tanks, water pump boxes, and atomizing nozzles, is designed as an inverted U-shaped water-cooling pipe to achieve all-round constraint and efficient cooling. Stable traction force is provided by traction tracks and pressing wheels, while atomizing nozzles spray water mist for cooling.
It significantly improves the anti-deformation effect of pipes, ensures product quality and production efficiency, and guarantees the stability and integrity of pipes during the production process.
Smart Images

Figure CN224527957U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of plastic pipe traction technology, and in particular relates to an anti-deformation traction device for plastic pipe production. Background Technology
[0002] In the production process of plastic pipes, the traction machine plays a crucial role, directly affecting the final quality of the pipes. Plastic pipe traction devices are mainly divided into two categories: wheeled and belt-driven (also known as tracked) traction machines. Although wheeled traction machines are widely used, they may suffer from problems such as large fluctuations in traction force and a tendency to slip, which often lead to pipe deformation and affect product quality.
[0003] In contrast, belt-driven (tracked) traction machines, with their powerful traction force, wide pipe contact area, adjustable clamping force, and constant traction performance, significantly reduce the risk of pipe deformation. The advantage of this traction method lies in its ability to more effectively control the morphological stability of the pipe during the production process.
[0004] However, traditional belt-driven traction machines typically employ two parallel belt conveyor mechanisms, positioned directly above and below the product, respectively. While this design largely ensures the structural stability of the upper and lower sections of the pipe and reduces the likelihood of deformation, it lacks sufficient restraint on the sides or other non-directly contacted areas of the pipe, thus leaving the risk of deformation unresolved. Furthermore, traditional traction processes often lack cooling mechanisms, failing to effectively reduce the pipe's temperature. Under high temperatures, the pipe is highly susceptible to overheating and deformation, further impacting product quality and stability.
[0005] Therefore, it is essential to invent an anti-deformation traction device for the production of plastic pipes. Utility Model Content
[0006] To solve the above-mentioned technical problems, this utility model provides an anti-deformation traction device for plastic pipe production, including a traction housing, a multi-arm surrounding traction mechanism, a drive component, a drive gear, a product, an observation window, a cooling water tank, a water pump box assembly, water-cooled pipes, and atomizing nozzles. The traction housing is equipped with an observation window, and the multi-arm surrounding traction mechanism is rotatably mounted on the traction housing. The output end of the drive component, fixedly mounted on the traction housing, is connected to the drive gear. The drive gear located inside the traction housing meshes with the multi-arm surrounding traction mechanism. The product is tractioned by the multi-arm surrounding traction mechanism. The cooling water tank is located below the multi-arm surrounding traction mechanism and the product. A water pump box assembly is installed inside the cooling water tank, and the water pump box assembly is fixed to several water-cooled pipes. Atomizing nozzles are installed on the inner side of the water-cooled pipes.
[0007] Preferably, the multi-arm surrounding traction mechanism includes a traction frame, traction wheels, pressing wheels, traction tracks, and a traction motor. At least four traction frames are provided, with traction wheels rotatably mounted at both ends inside each traction frame. A pressing wheel is disposed between two traction wheels, and several pressing wheels are rotatably mounted on each traction frame. Each pair of traction wheels rotatably mounted on each traction frame is equipped with a corresponding traction track. The output end of the traction motor, fixedly mounted externally on the traction frame, is connected to one of the traction wheels. The traction track contacts the surface of the product and is located around the perimeter of the product.
[0008] Preferably, each of the traction frames is slidably connected to a carrier plate at both ends. Each carrier plate has an inlet / outlet at its center that allows the product to pass through. A hydraulic cylinder is fixedly installed on the inner side of each carrier plate, and the output end of each hydraulic cylinder is fixed to the end of the corresponding traction frame.
[0009] Preferably, the bearing disk is rotatably mounted on the traction machine housing, and each bearing disk is provided with a gear tooth set, and the bearing disks are connected by meshing drive gears corresponding to the gear tooth sets.
[0010] Preferably, a plurality of horizontally arranged water-cooling pipes are provided between the two bearing plates. The water-cooling pipes have an inverted "U" shaped pipe structure, and the water mist sprayed by the atomizing nozzles installed on the water-cooling pipes is allowed to adhere to the surface of the product.
[0011] Preferably, the water-cooling pipe draws cooling water from the cooling water tank through the water pump box assembly. The cooling water tank is installed inside the lower part of the traction machine housing and is located below the multi-arm surrounding the traction mechanism.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] The multi-arm surrounding traction mechanism provided by this utility model significantly expands the constraint coverage of the pipe, extending from the traditional constraint of only the upper and lower parts of the pipe to comprehensive constraint of the entire circumference of the pipe. Through the coordinated action of the traction frame, traction wheel, pressing wheel, traction track, and traction motor, the multi-arm surrounding traction mechanism ensures that the pipe receives a uniform and stable traction force during production, thereby effectively avoiding pipe deformation problems caused by insufficient or unstable traction force. This improvement greatly enhances the overall anti-deformation effect of the pipe and guarantees the final product quality.
[0014] The drive component and hydraulic cylinder design in this invention greatly facilitate the adjustment of the traction mechanism. The drive component is connected to the multi-arm surrounding the traction mechanism via a drive gear, enabling precise control of the traction mechanism's position on the product. The hydraulic cylinder, through its output end fixedly connected to the end of the traction frame, allows for flexible adjustment of the traction frame's position. This design allows the traction mechanism to quickly adapt to different pipe specifications and production needs, further improving production flexibility and efficiency. Simultaneously, the precise control of the hydraulic cylinder ensures that the traction mechanism does not cause additional stress or damage to the pipe during adjustment, guaranteeing the pipe's integrity.
[0015] To address the lack of a cooling mechanism in traditional traction processes, this invention features a specially designed cooling system consisting of a cooling water tank, a water pump assembly, water-cooled pipes, and atomizing nozzles. The cooling water tank, located below the traction mechanism, stores cooling water. The water pump assembly draws cooling water from the tank to provide a continuous supply of cooling water to the water-cooled pipes. The water-cooled pipes employ an inverted "U"-shaped structure, effectively covering the sides and bottom of the pipe for efficient heat exchange. The atomizing nozzles further enhance the cooling effect by spraying fine water mist, which also acts as a lubricant on the pipe surface, reducing friction between the pipe and the traction mechanism. This cooling mechanism effectively reduces the pipe's temperature during production, preventing deformation due to overheating and further improving the pipe's quality and stability. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0017] Figure 2 This is a partial cross-sectional structural diagram of the present invention.
[0018] Figure 3 This is a utility model Figure 2 A magnified schematic diagram of the structure at point A.
[0019] Figure 4 This is a partial cross-sectional structural diagram of the multi-arm surrounding traction mechanism of this utility model.
[0020] In the picture:
[0021] 1. Traction housing; 2. Multi-arm traction mechanism; 21. Traction frame; 22. Traction wheel; 23. Pressing wheel; 24. Traction track; 25. Traction motor; 26. Bearing plate; 27. Hydraulic cylinder; 28. Gear set; 3. Drive component; 4. Drive gear; 5. Product; 6. Observation window; 7. Cooling water tank; 8. Water pump box assembly; 9. Water cooling pipe; 10. Atomizing nozzle. Detailed Implementation
[0022] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0023] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," 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 the present invention and for 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 the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.
[0024] As attached Figure 1 To be continued Figure 4 As shown:
[0025] This utility model provides an anti-deformation traction device for plastic pipe production, comprising a traction housing 1, a multi-arm surrounding traction mechanism 2, a drive component 3, a drive gear 4, a product 5, an observation window 6, a cooling water tank 7, a water pump box assembly 8, water-cooled pipes 9, and atomizing nozzles 10. The traction housing 1 is equipped with an observation window 6, and the multi-arm surrounding traction mechanism 2 is rotatably mounted on the traction housing 1. The output end of the drive component 3, fixedly mounted on the traction housing 1, is connected to the drive gear 4. The drive gear 4, located inside the traction housing 1, meshes with the multi-arm surrounding traction mechanism 2. The product 5 is tractioned by the multi-arm surrounding traction mechanism 2. The cooling water tank 7 is located below the multi-arm surrounding traction mechanism 2 and the product 5. The water pump box assembly 8 is installed inside the cooling water tank 7, and the water pump box assembly 8 is fixed to several water-cooled pipes 9. Atomizing nozzles 10 are installed on the inner side of the water-cooled pipes 9.
[0026] Furthermore, the multi-arm traction mechanism 2 includes a traction frame 21, traction wheels 22, pressing wheels 23, traction tracks 24, and a traction motor 25. To ensure all-around support and traction of the pipe, at least four traction frames 21 are required. Traction wheels 22 are rotatably mounted at both ends of each traction frame 21, and pressing wheels 23 are positioned between two traction wheels 22 to enhance the clamping force on the pipe product 5 and prevent slippage or deformation during traction. In addition, several pressing wheels 23 are rotatably mounted on each traction frame 21 to further ensure stable traction of the pipe.
[0027] Furthermore, each traction frame 21 has two traction wheels 22 equipped with corresponding traction tracks 24, which fit snugly against the surface of the pipe product 5, providing it with continuous traction. A traction motor 25 is fixedly mounted on the outside of the traction frame 21, its output end connected to one of the traction wheels 22, thereby driving the operation of the entire traction track 24. Notably, the traction tracks 24 wrap around the pipe, a design that ensures omnidirectional stability of the pipe product 5 during traction.
[0028] Furthermore, to improve the flexibility and adaptability of the traction mechanism, both ends of each traction frame 21 are slidably connected to the inner surface of the support plate 26. The center of the support plate 26 is provided with an inlet / outlet allowing pipes to pass through, ensuring that the pipe product 5 can smoothly pass through the entire traction device. In addition, a hydraulic cylinder 27 is fixedly installed on the inner side of each support plate 26, and the output end of the hydraulic cylinder 27 is fixed to the end of the corresponding traction frame 21. By adjusting the extension and retraction of the hydraulic cylinder 27, the traction frame 21 can be flexibly adjusted to accommodate pipes of different specifications and materials.
[0029] Furthermore, the support plate 26 not only bears the weight of the traction frame 21 and the pipe, but also engages with the drive gear 4 via the gear set 28. This design allows the support plate 26 to rotate along with the drive gear 4, thereby driving the entire multi-arm to rotate and adjust around the traction mechanism 2. This flexibility not only improves the adaptability of the device, but also ensures uniform cooling and stable traction of the pipe during the traction process.
[0030] Furthermore, between the two support plates 26, several horizontally arranged water-cooling pipes 9 are provided. The water-cooling pipes 9 adopt an inverted "U"-shaped pipe structure, which can be cleverly positioned around the pipe to provide it with a highly efficient cooling effect. The atomizing nozzles 10 installed on the water-cooling pipes 9 can spray out fine water mist, which can quickly adhere to the surface of the product 5 and carry away its heat, thereby effectively reducing the temperature of the product 5 and preventing it from deforming due to overheating.
[0031] Furthermore, the water-cooled pipe 9 draws cooling water from the cooling water tank 7 via the water pump assembly 8 for recycling. The cooling water tank 7 is installed inside the lower part of the traction machine housing 1, located below the multi-arm surrounding the traction mechanism 2. This design ensures smooth flow of cooling water and provides continuous cooling for the water-cooled pipe 9. Simultaneously, the cooling water tank 7 also serves to collect and treat wastewater, ensuring the environmental friendliness and sustainability of the entire system.
[0032] The working principle is as follows: First, when the plastic pipe (product 5) enters the anti-deformation traction device of this utility model, it is surrounded by the multi-arm surrounding traction mechanism 2. This mechanism consists of at least four traction frames 21, each with traction wheels 22 rotatably mounted at both ends inside, and a pressing wheel 23 is set between two traction wheels 22 to enhance the clamping force on the pipe and prevent it from slipping or deforming during traction. The traction tracks 24 are tightly attached to the surface of the pipe. These traction tracks 24 are driven by a traction motor 25 to drive one of the traction wheels 22, thereby providing continuous traction force to the pipe. It is worth noting that the traction tracks 24 surround the pipe, ensuring the omnidirectional stability of the pipe during traction.
[0033] Secondly, to improve the flexibility and adaptability of the traction mechanism, both ends of each traction frame 21 are slidably connected to the inner surface of the support plate 26. The support plate 26 not only bears the weight of the traction frame 21 and the pipe, but also meshes with the drive gear 4 through its gear set 28. When the drive component 3 starts and drives the drive gear 4 to rotate, the support plate 26 rotates accordingly, thereby causing the entire multi-arm to rotate and adjust around the traction mechanism 2. This design allows the traction mechanism to be flexibly adjusted according to the specifications and material of the pipe, ensuring the stability and uniformity of the pipe during the traction process.
[0034] During traction, the cooling system plays a crucial role. Several transversely arranged water-cooled pipes 9, located between the two support plates 26, employ an inverted "U"-shaped pipe structure, cleverly positioned around the pipe. The water-cooled pipes 9 circulate cooling water drawn from the cooling water tank 7 via the water pump assembly 8. As the cooling water flows through the water-cooled pipes 9, atomizing nozzles 10 spray out a fine mist, which quickly adheres to the surface of the pipe and carries away its heat. In this way, the cooling system effectively reduces the temperature of the pipe, preventing it from deforming due to overheating.
[0035] Meanwhile, the observation window 6 installed on the traction housing 1 allows operators to observe the traction process and the status of the pipe at any time, ensuring the smooth operation of the entire production process.
[0036] Finally, after the pipe is pulled to the end of the device and cooled, it is smoothly discharged from the inlet and outlet of the support plate 26, completing the entire pulling and cooling process. At this time, the cooling water tank 7 also plays a role in collecting and treating wastewater, ensuring the environmental protection and sustainability of the entire device.
[0037] In summary, the anti-deformation traction device for plastic pipe production provided by this utility model, through its unique multi-arm surrounding traction mechanism 2 and efficient cooling system, achieves all-round stable traction and effective cooling of the pipe, significantly improving the production efficiency and product quality of plastic pipes.
[0038] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.
Claims
1. A deformation-resistant traction device for plastic pipe production, characterized in that, The device includes a traction housing (1), a multi-arm traction mechanism (2), a drive component (3), a drive gear (4), a product (5), an observation window (6), a cooling water tank (7), a water pump box assembly (8), water cooling pipes (9), and an atomizing nozzle (10). The traction housing (1) is equipped with an observation window (6), and the multi-arm traction mechanism (2) is rotatably mounted on the traction housing (1). The output end of the drive component (3) fixedly mounted on the traction housing (1) is connected to the drive gear (4), and the drive gear (4) located inside the traction housing (1) is meshed with the multi-arm traction mechanism (2). The product (5) is tractioned by the multi-arm traction mechanism (2). The cooling water tank (7) is located below the multi-arm traction mechanism (2) and the product (5). The water pump box assembly (8) is installed inside the cooling water tank (7), and the water pump box assembly (8) is fixed to several water cooling pipes (9). An atomizing nozzle (10) is installed on the inner side of the water cooling pipes (9).
2. The anti-deformation traction device for plastic pipe production as described in claim 1, characterized in that: The multi-arm surrounding traction mechanism (2) includes a traction frame (21), traction wheels (22), pressing wheels (23), traction tracks (24), and a traction motor (25). At least four traction frames (21) are provided. Traction wheels (22) are rotatably installed at both ends inside each traction frame (21). A pressing wheel (23) is provided between two traction wheels (22). Several pressing wheels (23) are rotatably installed on each traction frame (21). Each traction wheel (22) rotatably installed on each traction frame (21) is equipped with a corresponding traction track (24). The output end of the traction motor (25) fixedly installed outside the traction frame (21) is connected to one of the traction wheels (22). The traction track (24) is in contact with the surface of the product (5) and is located around the product (5).
3. The anti-deformation traction device for plastic pipe production as described in claim 2, characterized in that: Each of the traction frames (21) is slidably connected to the bearing plate (26) at both ends. The bearing plate (26) is provided with an inlet and outlet that allows the product (5) to pass through. A hydraulic cylinder (27) is fixedly installed on the inner side of each bearing plate (26). The output end of each hydraulic cylinder (27) is fixed to the end of the corresponding traction frame (21).
4. The anti-deformation traction device for plastic pipe production as described in claim 3, characterized in that: The bearing disk (26) is rotatably mounted on the traction housing (1). Each bearing disk (26) is provided with a gear set (28). The bearing disk (26) is connected by the drive gear (4) corresponding to the gear set (28).
5. The anti-deformation traction device for plastic pipe production as described in claim 4, characterized in that: Several horizontally arranged water-cooling pipes (9) are provided between the two bearing plates (26). The water-cooling pipes (9) are inverted "U" shaped pipe structures. The water mist sprayed by the atomizing nozzles (10) installed on the water-cooling pipes (9) is allowed to adhere to the surface of the product (5).
6. The anti-deformation traction device for plastic pipe production as described in claim 5, characterized in that: The water cooling pipe (9) draws cooling water from the cooling water tank (7) through the water pump box group (8). The cooling water tank (7) is installed inside the lower part of the traction machine housing (1) and located below the multi-arm surrounding traction mechanism (2).