A rapid cooling device for PE pipe production

Abstract

This utility model discloses a rapid cooling device for PE pipe production, belonging to the field of PE pipe production technology. It includes a housing with a cooling chamber inside, a spray frame fixedly installed inside the cooling chamber, and a clamping assembly installed inside the spray frame. This utility model enables stable adaptation and reliable support for PE pipes of different diameters, significantly improving the equipment's versatility and applicability. The coordinated operation of its internal structure ensures precise adjustment and stable movement of the support components, effectively preventing axial offset or swaying of the PE pipe during continuous conveying and cooling, providing a fundamental guarantee for uniform cooling by atomized spraying. Simultaneously, the rolling support method adopted by the assembly significantly reduces the PE pipe conveying resistance and surface wear, ensuring product appearance quality while reducing energy consumption of the conveying system, achieving multiple optimizations in support function, production efficiency, and product quality.

Description

Technical Field

[0001] This utility model belongs to the field of PE pipe production technology, specifically relating to a rapid cooling device for PE pipe production. Background Technology

[0002] PE pipe, or polyethylene pipe, is a thermoplastic pipe made from polyethylene resin as the core raw material through extrusion molding. It has the characteristics of chemical corrosion resistance, low-temperature impact resistance, and high flexibility. It is also lightweight, has a smooth inner wall, and low fluid resistance. It can be connected efficiently and reliably through hot melting and electrofusion. This pipe is hygienic, non-toxic, and recyclable. It is widely used in municipal water supply, gas transmission, farmland irrigation, drainage and sewage, and chemical fluid transportation. It is a high-quality pipe material to replace traditional metal pipes and concrete pipes.

[0003] Cooling devices are required during the extrusion production of PE pipes because the molten polyethylene raw material is still in an unstable state of high temperature and high elasticity after being formed by the extrusion die. Natural cooling will result in defects such as pipe wall thickness deviation, pipe diameter elliptical deformation, and surface shrinkage and wrinkling due to uneven cooling rate. It also cannot quickly solidify to maintain the preset structural dimensions. Precise temperature control and cooling through cooling devices such as spray water tanks and vacuum sizing boxes can promote uniform cooling and rapid hardening of the pipe from the outside to the inside, ensuring that its geometric accuracy, surface quality and mechanical properties meet the standards and meet the process requirements of subsequent cutting, connection and other processes.

[0004] While existing cooling devices can cool PE pipes, they are often difficult to adapt to PE pipes of different diameters during use. They also have poor support stability for PE pipes, which can easily lead to axial misalignment or shaking of the PE pipes during continuous transport and cooling, thus affecting the uniformity of atomized spray cooling. At the same time, the support methods used in some devices increase the transport resistance and surface wear of PE pipes, which may not only damage the appearance quality of the product but also increase the energy consumption of the transport system. The equipment's versatility and applicability are limited, making it difficult to meet the multiple requirements of support reliability, production efficiency, and product quality. Utility Model Content

[0005] The purpose of this invention is to provide a rapid cooling device for PE pipe production, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rapid cooling device for PE pipe production, comprising a housing, a cooling chamber inside the housing, a spray frame fixedly installed inside the cooling chamber, a clamping assembly inside the spray frame, and a support ring installed inside the spray frame and fixedly connected to the housing. The inner wall of the support ring has several limiting grooves, and a limiting slider is slidably connected inside each limiting groove. A toggle post is fixedly connected to both ends of the limiting slider. A support roller is rotatably connected to the end of the toggle post away from the limiting slider. A transmission ring is rotatably connected to the inner walls of the left and right sides of the support ring. An arc-shaped groove distributed in a circular array is opened on the inner wall of the transmission ring. The toggle post is sleeved inside the arc-shaped groove. Connecting blocks are fixedly connected to the side surfaces of the two transmission rings. A hydraulic cylinder is rotatably connected to the connecting block, and the other end of the hydraulic cylinder is rotatably connected to the housing.

[0007] In a preferred embodiment, a water pump is fixedly installed inside the cooling chamber, and the output end of the water pump is fixedly connected to an output pipe, the other end of which is fixedly connected to a spray frame.

[0008] In a preferred embodiment, the bottom inner wall of the box is provided with a ventilation slot, and a heat-conducting plate arranged in a linear array is fixedly connected inside the ventilation slot. A heat-conducting strip is fixedly connected to the side surface of the heat-conducting plate.

[0009] In a preferred embodiment, several fans are fixedly installed inside the ventilation slot and at both ends of the heat-conducting plate.

[0010] In a preferred embodiment, a pair of observation windows are provided on the inner wall of the front end of the enclosure, and a maintenance space is provided between the pair of observation windows, with a door rotatably connected inside the maintenance space.

[0011] In a preferred embodiment, a support leg is fixedly connected to the bottom of the box, and a rubber pad is fixedly connected to the bottom of the support leg.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In this invention, the clamping assembly, as the core support mechanism in the PE pipe cooling process, can achieve stable adaptation and reliable support for PE pipes of different diameters, significantly improving the versatility and applicability of the equipment. The coordinated operation of its internal structure ensures precise adjustment and movement stability of the support parts, effectively preventing axial offset or shaking of the PE pipe during continuous conveying and cooling, providing a basic guarantee for uniform cooling of the atomized spray. At the same time, the rolling support method adopted by the assembly greatly reduces the conveying resistance and surface wear of the PE pipe, ensuring the appearance quality of the product and reducing the energy consumption of the conveying system, achieving multiple optimizations of support function, production efficiency, and product quality.

[0014] In this invention, the combined design of the heat-conducting plate and heat-conducting strip significantly improves heat exchange efficiency, rapidly reducing the temperature of the circulating coolant and ensuring that the coolant maintains good cooling capacity at all times, avoiding a decrease in cooling rate due to increased coolant temperature. The forced convection cooling generated by the fan further enhances the heat dissipation effect, enabling the equipment to adapt to the needs of long-term continuous production and extending its continuous operating time. The independent design of the ventilation slots ensures that the heat dissipation system and the cooling chamber are independent of each other, avoiding interference between the heat dissipation process and the humidity and temperature environment within the cooling chamber. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the clamping component of this utility model;

[0017] Figure 3 This is an exploded three-dimensional structural diagram of the clamping component of this utility model;

[0018] Figure 4 This is an exploded two-dimensional structural diagram of the clamping component of this utility model;

[0019] Figure 5 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0021] In the diagram: 1. Housing; 2. Cooling chamber; 3. Sprayer rack; 4. Clamping assembly; 5. Ventilation slot; 6. Heat-conducting plate; 7. Heat-conducting strip; 8. Fan; 9. Water pump; 10. Output pipe; 11. Observation window; 12. Housing door; 13. Support leg; 14. Rubber pad; 401. Support ring; 402. Limiting slide groove; 403. Limiting slider; 404. Actuating column; 405. Support roller; 406. Transmission ring; 407. Arc groove; 408. Connecting block; 409. Hydraulic cylinder. Detailed Implementation

[0022] The present invention will be further described below with reference to the embodiments.

[0023] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0024] Please see Figures 1 to 6 This utility model provides a rapid cooling device for PE pipe production, including a housing 1. A cooling chamber 2 is provided inside the housing 1, with inlets and outlets at both ends of the cooling chamber 2. A spray frame 3 is fixedly installed inside the cooling chamber 2. The spray frame 3 consists of several annular pipes, and each pipe's inner ring is fixedly connected to several atomizing nozzles. A clamping assembly 4 is installed inside the spray frame 3. The clamping assembly 4 includes a support ring 401 installed inside the spray frame 3 and fixedly connected to the housing 1. Several limiting grooves 402 are provided on the inner wall of the support ring 401. Limiting sliders 403 are slidably connected inside the limiting grooves 402, and the limiting grooves 402 are used to limit the movement of the limiting sliders 403. A toggle post 404 is fixedly connected to both ends of the limiting slider 403. A support roller 405 is rotatably connected to the end of the toggle post 404 away from the limiting slider 403. The toggle post 404 is L-shaped. The support ring 401 is rotatably connected to the inner walls of the left and right sides of the support ring 401. The inner wall of the transmission ring 406 has arc-shaped grooves 407 arranged in a ring array. The actuating column 404 is sleeved inside the arc-shaped groove 407. During the rotation of the transmission ring 406, the actuating column 404 is squeezed by the arc-shaped groove 407, which drives the limiting slider 403 to move inside the limiting groove 402, thereby driving the actuating column 404 and the support roller 405 to move, so as to achieve adaptability to PE pipes of different diameters. The side surfaces of the two transmission rings 406 are fixedly connected to the connecting blocks 408. The connecting blocks 408 are rotatably connected to the connecting blocks 408. The telescopic end of the hydraulic cylinder 409 is rotatably connected to the connecting blocks 408, which can provide rotational power for the two transmission rings 406. The other end of the hydraulic cylinder 409 is rotatably connected to the housing 1.

[0025] When the hydraulic cylinder 409 extends or retracts, its extension end drives two transmission rings 406 to rotate on the inner wall of the support ring 401 via the connecting block 408. The transmission rings 406 generate radial extrusion force on the actuating column 404 through the arc groove 407, pushing the limiting slider 403 to slide along the limiting groove 402, thereby making the support roller 405 at the end of the actuating column 404 in close contact with the surface of the PE pipe. During the PE pipe transportation process, the support roller 405 rotates with the movement of the PE pipe to achieve rolling support.

[0026] In this invention, the clamping component 4 serves as the core support mechanism during the PE pipe cooling process. It can achieve stable adaptation and reliable support for PE pipes of different diameters, significantly improving the versatility and applicability of the equipment. The coordinated operation of its internal structure ensures precise adjustment and stable movement of the support parts, effectively preventing axial offset or shaking of the PE pipe during continuous conveying and cooling, thus providing a basic guarantee for uniform cooling of the atomized spray. At the same time, the rolling support method adopted by the component greatly reduces the conveying resistance and surface wear of the PE pipe, ensuring the appearance quality of the product while reducing the energy consumption of the conveying system, achieving multiple optimizations in support function, production efficiency, and product quality.

[0027] Specifically, such as Figure 1 and Figure 6 As shown, a water pump 9 is fixedly installed inside the cooling chamber 2. The output end of the water pump 9 is fixedly connected to an output pipe 10, and the other end of the output pipe 10 is fixedly connected to a spray frame 3. The water pump 9 can draw liquid from the inside of the cooling chamber 2 and then output it through the output pipe 10 to realize the circulation of coolant.

[0028] The circulation system consisting of water pump 9 and output pipe 10 enables the coolant to be reused, avoiding waste of coolant and reducing material costs in the production process; the closed-loop circulation reduces coolant discharge and environmental pollution.

[0029] Specifically, such as Figure 1 and Figure 5 As shown, a ventilation slot 5 is provided on the bottom inner wall of the box 1. A heat-conducting plate 6 arranged in a linear array is fixedly connected inside the ventilation slot 5. A heat-conducting strip 7 is fixedly connected to the side surface of the heat-conducting plate 6. Several fans 8 are fixedly installed inside the ventilation slot 5 and at the front and rear ends of the heat-conducting plate 6.

[0030] The heat-conducting plate 6 inside the ventilation slot 5 contacts the bottom of the cooling chamber 2, absorbing the heat transferred by the coolant in the cooling chamber 2. The heat-conducting strip 7 fixed to the side surface of the heat-conducting plate 6 increases the contact area between the heat-conducting plate 6 and the air, accelerating heat dissipation. After the fans 8 located at the front and rear ends of the heat-conducting plate 6 in the ventilation slot 5 are activated, an airflow is formed that draws in cold air from one end of the ventilation slot 5 and exhausts hot air from the other end. When the airflow flows over the surface of the heat-conducting plate 6 and the heat-conducting strip 7, it quickly carries away the heat, achieving auxiliary cooling of the coolant. In this invention, the combined design of the heat-conducting plate 6 and the heat-conducting strip 7 significantly improves the heat exchange efficiency, can quickly reduce the temperature of the circulating coolant, ensures that the coolant always maintains a good cooling capacity, and avoids a decrease in cooling rate due to the increase in coolant temperature. The forced convection heat dissipation formed by the fan 8 further enhances the heat dissipation effect, enabling the equipment to adapt to the needs of long-term continuous production and extending the continuous working time of the equipment. The independent design of the ventilation slot 5 makes the heat dissipation system independent of the cooling chamber 2, avoiding interference of the heat dissipation process with the humidity and temperature environment inside the cooling chamber 2.

[0031] Specifically, such as Figure 1 As shown, a pair of observation windows 11 are provided on the inner wall of the front end of the housing 1, and a maintenance space is provided between the pair of observation windows 11. The maintenance space is rotatably connected to the housing door 12.

[0032] The observation window 11 allows operators to monitor the internal working status of the equipment without stopping the machine, reducing production interruptions caused by downtime for inspection and improving production continuity. The rotatable door 12 ensures the sealing of the cooling chamber 2 and provides a convenient operating channel for equipment maintenance, shortening maintenance time, reducing maintenance costs, and improving the efficiency of equipment operation and maintenance.

[0033] The bottom of the housing 1 is fixedly connected to a support leg 13, and the bottom of the support leg 13 is fixedly connected to a rubber pad 14.

[0034] The support leg 13 makes the equipment installation more stable, avoids the equipment tilting due to uneven ground, and improves the heat dissipation efficiency of the ventilation slot 5; the elastic cushioning function of the rubber pad 14 can effectively absorb the vibration during equipment operation.

[0035] Working principle and usage process of this utility model:

[0036] Before starting the rapid cooling equipment for PE pipe production, the staff first check the internal state of the cooling chamber 2 through the observation window 11 at the front of the box 1. Then, according to the diameter of the PE pipe to be cooled, the clamping assembly 4 is adjusted by controlling the extension and retraction of the hydraulic cylinder 409. The extension and retraction end of the hydraulic cylinder 409 drives the two transmission rings 406 on the inner wall of the support ring 401 to rotate through the connecting block 408. The arc groove 407 on the inner wall of the transmission ring 406 generates radial extrusion force on the actuating column 404, pushing the limit slider 403 to slide along the limit groove 402 on the inner wall of the support ring 401, so that the support roller 405 at the end of the actuating column 404 is in close contact with the surface of the PE pipe, achieving stable clamping and adaptation, and avoiding axial offset or shaking during subsequent transportation.

[0037] Next, the PE pipe is fed into the inlet of the cooling chamber 2, and the water pump 9 and the fan 8 in the ventilation slot 5 are started. During the transportation process, the support roller 405 rotates with the movement of the PE pipe to reduce the transportation resistance and surface wear by rolling support. The water pump 9 draws the coolant in the cooling chamber 2 and delivers it to the spray frame 3 through the output pipe 10. The atomizing nozzles on the ring pipe of the spray frame 3 spray the PE pipe evenly to achieve rapid cooling.

[0038] Meanwhile, the heat at the bottom of the cooling chamber 2 is absorbed by the heat-conducting plate 6 in the ventilation slot 5, the heat-conducting strip 7 increases the heat exchange area, and the fan 8 forms a forced convection airflow to quickly expel the heat on the heat-conducting plate 6 and the heat-conducting strip 7, ensuring that the coolant always maintains a good cooling effect. The circulation system consisting of the water pump 9 and the output pipe 10 allows the coolant to be reused, reducing waste and pollution.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid cooling device for PE pipe production, comprising a housing (1), characterized in that: The housing (1) has a cooling chamber (2) inside, and a spray rack (3) is fixedly installed inside the cooling chamber (2). A clamping assembly (4) is installed inside the spray rack (3). The clamping assembly (4) includes a support ring (401) installed inside the spray rack (3) and fixedly connected to the housing (1). The inner wall of the support ring (401) has several limiting grooves (402). A limiting slider (403) is slidably connected inside the limiting groove (402). A toggle post (404) is fixedly connected to both the left and right ends of the limiting slider (403). (404) A support roller (405) is rotatably connected to one end away from the limit slider (403). A transmission ring (406) is rotatably connected to the inner wall of the left and right sides of the support ring (401). An arc-shaped groove (407) is opened on the inner wall of the transmission ring (406) in a ring array. The actuating column (404) is sleeved inside the arc-shaped groove (407). A connecting block (408) is fixedly connected to the side surface of the two transmission rings (406). A hydraulic cylinder (409) is rotatably connected to the connecting block (408). The other end of the hydraulic cylinder (409) is rotatably connected to the housing (1).

2. The rapid cooling equipment for PE pipe production according to claim 1, characterized in that: A water pump (9) is fixedly installed inside the cooling chamber (2). The output end of the water pump (9) is fixedly connected to an output pipe (10), and the other end of the output pipe (10) is fixedly connected to a spray frame (3).

3. The rapid cooling apparatus for PE pipe production according to claim 1, characterized in that: The bottom inner wall of the box (1) is provided with ventilation slots (5), and heat-conducting plates (6) arranged in a linear array are fixedly connected inside the ventilation slots (5). Heat-conducting strips (7) are fixedly connected to the side surface of the heat-conducting plates (6).

4. The rapid cooling apparatus for PE pipe production according to claim 3, characterized in that: Several fans (8) are fixedly installed inside the ventilation slot (5) and at the front and rear ends of the heat-conducting plate (6).

5. The rapid cooling equipment for PE pipe production according to claim 1, characterized in that: The front inner wall of the box (1) is provided with a pair of observation windows (11), and a maintenance space is provided between the pair of observation windows (11), and the maintenance space is rotatably connected to a box door (12).

6. The rapid cooling apparatus for PE pipe production according to claim 5, characterized in that: The bottom of the box (1) is fixedly connected to a support leg (13), and the bottom of the support leg (13) is fixedly connected to a rubber pad (14).

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