Polyethylene pipe extrusion cooling device

By designing a multi-stage cooling device, using a water tank and a fan to gradually cool the polyethylene pipes, the problem of surface defects caused by large temperature differences in existing cooling equipment was solved, thus improving pipe quality and production efficiency.

CN223545761UActive Publication Date: 2025-11-14BAODING CHENGSHUN CONVEYING MASCH MFG CO LTD
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Patent Information

Application Number
CN202422933799.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2025-11-14
Estimated Expiration
2034-11-29

AI Technical Summary

Technical Problem

Existing polyethylene pipe cooling equipment can only cool at the same temperature, resulting in large temperature differences. This can easily cause defects such as cracks and bubbles on the pipe surface, affecting pipe performance and dimensional stability, and reducing production efficiency.

Method used

Design a polyethylene pipe extrusion cooling device including a water tank, a fan, and a guide assembly. Through multi-stage gradual cooling and fan heat dissipation, the pipe is gradually cooled by cold water at different temperatures and the fan to prevent the generation of surface defects. The guide assembly enables automatic feeding.

Benefits of technology

Multi-stage gradual cooling of polyethylene pipes was achieved, preventing surface defects, improving pipe performance and durability, enhancing dimensional stability and production efficiency, and ensuring safe and continuous production.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to the field of pipe processing, in particular to a polyethylene pipe extrusion cooling device. The utility model provides a polyethylene pipe extrusion cooling device which can be used for carrying out multi-section step-by-step cooling on a polyethylene pipe, preventing cracks, bubbles or other defects on the surface of the pipe, improving the performance and durability of the pipe, improving the stability of the size, and improving the quality and the production efficiency of the pipe. A polyethylene pipe extrusion cooling device comprises a base, a placing table and the like, and the placing table is connected to the upper side of the middle of the base. Cold water with different temperatures is added into the water storage tank, the polyethylene pipe is moved, the pipe is gradually cooled through the cold water, meanwhile, the pipe and the cold water are cooled through rotation of the fan, and therefore the polyethylene pipe can be gradually cooled in a multi-section mode, cracks, bubbles or other defects are prevented from occurring on the surface of the pipe, and the service life of the pipe is prolonged. The performance and durability of the pipe are improved, the size stability is improved, and the quality and production efficiency of the pipe are improved.
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Description

Technical Field

[0001] This utility model relates to the field of pipe processing, and in particular to a polyethylene pipe extrusion cooling device. Background Technology

[0002] Polyethylene pipes are pipes made from polyethylene resin through an extrusion molding process. Polyethylene is a thermoplastic with excellent chemical stability and mechanical properties, and is widely used in various fields, especially in water and gas transportation, drainage systems, agricultural irrigation, and industrial pipelines. Extrusion cooling is an important step in the production process of polyethylene pipes.

[0003] Existing polyethylene pipe extrusion cooling typically involves extruding the polyethylene pipe through an extruder and then directly conveying it to a cooling device for cooling via water spraying and air blowing. However, most current cooling devices can only cool at the same temperature and cannot achieve multi-stage gradual cooling. Single-temperature cooling can lead to large temperature differences, which can easily cause cracks, bubbles, or other defects on the pipe surface, affecting the performance and dimensional stability of the pipe, thus impacting pipe quality and production efficiency, and making it inconvenient to use.

[0004] Therefore, it is necessary to design a polyethylene pipe extrusion cooling device that can perform multi-stage gradual cooling of polyethylene pipes to prevent cracks, bubbles or other defects on the pipe surface, improve the performance and durability of the pipes, improve dimensional stability, and improve the quality and production efficiency of the pipes. Utility Model Content

[0005] To overcome the shortcomings of current cooling equipment, which mostly only allows cooling at the same temperature and cannot achieve multi-stage gradual cooling, easily causing defects on the pipe surface, affecting the performance and dimensional stability of the pipe, and thus affecting the quality of the pipe and production efficiency, this utility model provides a polyethylene pipe extrusion cooling device that can perform multi-stage gradual cooling of polyethylene pipes, prevent cracks, bubbles or other defects on the pipe surface, improve the performance and durability of the pipe, improve dimensional stability, and improve the quality of the pipe and production efficiency.

[0006] Technical solution: A polyethylene pipe extrusion cooling device includes a base, a placement platform, an isolation box, a shielding cover, a cooling component, and a guiding component. The placement platform is connected to the upper side of the middle part of the base, the isolation box is connected to the upper side of the placement platform, and the shielding cover is connected to the upper side of the isolation box. A cooling component for gradually cooling the polyethylene pipe is provided between the placement platform and the shielding cover. Guiding components for guiding and conveying the polyethylene pipe are provided on both the left and right sides of the base.

[0007] Furthermore, it is particularly preferred that the cooling assembly includes a water tank, an inlet pipe, an outlet pipe, and a fan. Multiple water tanks are connected to the placement platform. Each water tank has an integrally formed inlet pipe connected to the upper rear side, and the inlet pipes all pass through an isolation box. Each water tank has an integrally formed outlet pipe connected to the lower front side, and the outlet pipes all pass through the isolation box. Multiple fans are connected to the cover.

[0008] In addition, it is particularly preferred that the water tanks are all U-shaped.

[0009] In addition, it is particularly preferred that a dust filter is included, with dust filters connected to both the top and bottom sides of the fan.

[0010] Furthermore, it is particularly preferred that the guide assembly includes a support frame, a slide rail, a motor, a gear set, a rotary adjustment plate, a sliding frame, and an electric wheel. Support frames are connected to the upper sides of both the left and right sides of the base. Slide rails are connected to the upper sides of the support frames that are far apart from each other. A motor is connected to the front of each support frame. A rotary adjustment plate is rotatably connected to the upper sides of the support frames that are close to each other. A gear set is provided between the output shaft of each motor and the rotary adjustment plate on the same side. Multiple sliding frames are movably connected to each rotary adjustment plate. Each sliding frame is slidably connected to the slide rail on the same side. An electric wheel is rotatably connected to each sliding frame.

[0011] Furthermore, it is particularly preferred that the gear set includes gears and gear rings, with gears connected to the output shaft of the motor and gear rings connected to the outer side of the rotating adjustment plate, and the gear rings meshing with the gears on the same side.

[0012] Beneficial effects: 1. This utility model adds cold water of different temperatures to a water storage tank and then moves it through a polyethylene pipe. The cold water gradually cools the pipe, while a fan rotates to dissipate heat from the pipe and the cold water. This allows for multi-stage gradual cooling of the polyethylene pipe, preventing cracks, bubbles, or other defects from appearing on the pipe surface, improving the pipe's performance and durability, increasing dimensional stability, and enhancing the quality and production efficiency of the pipe.

[0013] 2. This utility model uses gear rotation to rotate the adjusting plate, which in turn moves the sliding frame and the electric wheel. The electric wheel then transports and unloads the pipes, enabling the guiding and automatic unloading of pipes of different specifications. This facilitates continuous production, increases production speed, improves safety, and is flexible and convenient to use. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a schematic cross-sectional view of the first partial three-dimensional structure of this utility model.

[0016] Figure 3 This is a schematic cross-sectional view of the second part of the three-dimensional structure of this utility model.

[0017] Figure 4 This is a partial three-dimensional structural diagram of the present invention.

[0018] Figure 5 This is an exploded cross-sectional view of part of the three-dimensional structure of this utility model.

[0019] The above-mentioned attached drawings include the following reference numerals: 1. base, 2. placement platform, 3. isolation box, 4. shielding cover, 5. water tank, 6. water inlet pipe, 7. water outlet pipe, 8. dustproof net, 9. fan, 10. support frame, 11. slide rail, 12. motor, 13. gear set, 14. rotating adjustment plate, 15. sliding frame, 16. electric wheel. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0021] A polyethylene pipe extrusion cooling device, such as Figures 1-5As shown, the system includes a base 1, a placement platform 2, an isolation box 3, a cover 4, a water tank 5, an inlet pipe 6, an outlet pipe 7, a dustproof net 8, a fan 9, a support frame 10, a slide rail 11, a motor 12, a gear set 13, a rotating adjustment plate 14, a sliding frame 15, and an electric wheel 16. The placement platform 2 is connected to the upper part of the middle of the base 1. The isolation box 3 is connected to the upper part of the placement platform 2. The cover 4 is connected to the upper part of the isolation box 3. Three water tanks 5 are connected to the placement platform 2. Each water tank 5 is U-shaped. An integrally formed inlet pipe 6 is connected to the upper rear side of each water tank 5, and the inlet pipe 6 passes through the isolation box 3. An integrally formed outlet pipe 7 is connected to the lower front side of each water tank 5, and the outlet pipe 7 passes through the isolation box 3. Three fans 9 are connected to the cover 4. Each fan 9 is connected to... The base 1 has a dustproof net 8 for dust prevention. Support frames 10 are connected to the upper sides of both the left and right sides of the base 1. Slide rails 11 are connected to the upper sides of the support frames 10 that are far apart from each other. Motors 12 are connected to the front of the support frames 10. Rotary adjustment plates 14 are rotatably connected to the upper sides of the support frames 10 that are close to each other. Gear sets 13 are provided between the output shaft of the motors 12 and the rotary adjustment plates 14 on the same side. The gear sets 13 include gears and gear rings. Gears are connected to the output shaft of the motors 12. Gear rings are connected to the outer side of the rotary adjustment plates 14. The gear rings mesh with the gears on the same side. Four sliding frames 15 are movably connected to the rotary adjustment plates 14. The sliding frames 15 are slidably connected to the slide rails 11 on the same side. Electric wheels 16 are rotatably connected to the sliding frames 15.

[0022] When polyethylene pipe extrusion requires cooling, this device can be used. Place the device on one side of the extrusion equipment's outlet, ensuring the base 1 is in contact with the ground. Then, block the water outlet pipe 7. Add cold water of different temperatures from the inlet pipe 6 into the water storage tanks 5, each U-shaped. Next, block the inlet pipe 6. Then, depending on the pipe size, start the motor 12. The motor 12 drives the gears to rotate, and the gears mesh with the gear ring, causing the rotating adjusting plate 14 to rotate. This causes the sliding frame 15 to move along the slide rail 11 and the rotating adjusting plate 14, moving the electric wheel 16. After moving to the appropriate position, turn off the motor 12. Then, extrude the polyethylene pipe through the extrusion equipment, causing the polyethylene pipe to contact the right slide rail 11. This allows the polyethylene pipe to move and contact the electric wheel 16. Then, start the electric wheel 16, causing it to rotate and extrude the polyethylene pipe. The ethylene pipe continues to move, sequentially contacting three water tanks 5. The cold water in the tanks 5 gradually cools the polyethylene pipe. Simultaneously, fan 9 is activated, dissipating heat from both the pipe and the cold water. Dust or impurities are blocked by a dust filter 8. This multi-stage, gradual cooling process prevents cracks, bubbles, or other defects from appearing on the pipe surface, improving its performance, durability, dimensional stability, quality, and production efficiency. The pipe continues to move until it contacts the left-side electric wheel 16, which then transports and unloads the cooled pipe. This allows for the guiding and automatic unloading of pipes of different specifications, facilitating continuous production, increasing production speed, enhancing safety, and providing flexibility and convenience. Once cooling is complete, fan 9 and electric wheel 16 are turned off.

[0023] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation in order to cover all variations and equivalent structures and functions.

Claims

1. A polyethylene pipe extrusion cooling device, characterized in that: It includes a base (1), a placement platform (2), an isolation box (3), a shielding cover (4), a cooling component, and a guide component. The placement platform (2) is connected to the upper side of the middle part of the base (1), the isolation box (3) is connected to the upper side of the placement platform (2), the shielding cover (4) is connected to the upper side of the isolation box (3), a cooling component for gradually cooling the polyethylene pipe is provided between the placement platform (2) and the shielding cover (4), and guide components for guiding and conveying the polyethylene pipe are provided on both the left and right sides of the base (1).

2. A polyethylene pipe extrusion cooling device according to claim 1, characterized in that: The cooling assembly includes a water tank (5), an inlet pipe (6), an outlet pipe (7), and a fan (9). Multiple water tanks (5) are connected to the platform (2). An integrally formed inlet pipe (6) is connected to the upper rear side of each water tank (5). The inlet pipe (6) passes through the isolation box (3). An integrally formed outlet pipe (7) is connected to the lower front side of each water tank (5). The outlet pipe (7) passes through the isolation box (3). Multiple fans (9) are connected to the cover (4).

3. A polyethylene pipe extrusion cooling device according to claim 2, characterized in that: All water storage tanks (5) are U-shaped.

4. A polyethylene pipe extrusion cooling device according to claim 3, characterized in that: It also includes a dustproof net (8), and the upper and lower sides of the fan (9) are connected with dustproof nets (8).

5. A polyethylene pipe extrusion cooling device according to claim 4, characterized in that: The guide assembly includes a support frame (10), a slide rail (11), a motor (12), a gear set (13), a rotary adjustment plate (14), a sliding frame (15), and an electric wheel (16). The upper sides of the left and right sides of the base (1) are connected to the support frame (10). The upper sides of the support frame (10) that are far apart from each other are connected to the slide rail (11). The front of the support frame (10) is connected to the motor (12). The upper sides of the support frame (10) that are close to each other are rotatably connected to the rotary adjustment plate (14). The output shaft of the motor (12) is connected to the rotary adjustment plate (14) on the same side with a gear set (13). Multiple sliding frames (15) are movably connected to the rotary adjustment plate (14). The sliding frames (15) are slidably connected to the slide rail (11) on the same side. The sliding frames (15) are rotatably connected to the electric wheel (16).

6. A polyethylene pipe extrusion cooling device according to claim 5, characterized in that: The gear set (13) includes gears and gear rings. Gears are connected to the output shaft of the motor (12), and gear rings are connected to the outer side of the rotating adjustment plate (14). The gear rings mesh with the gears on the same side.