Flaring, atomizing and cooling device for plastic pipe
By spraying atomized coolant on the outside of the plastic pipe and using a fan to dry out the moisture, the problem of uneven cooling of the plastic pipe expansion is solved, the cooling efficiency and product quality are improved, and the cost is reduced.
Patent Information
- Application Number
- CN202421924526.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-08-09
AI Technical Summary
The existing plastic pipe expansion device has uneven cooling, resulting in poor mechanical properties at the expansion point, affecting the connection and service life, and has low cooling efficiency.
The flared part is directly cooled by atomized coolant outside the pipe, and the moisture on the pipe surface is dried by a fan. Multiple groups of atomizing nozzles and fan structures are designed to improve cooling efficiency and uniformity.
Uniform cooling of the flared portion is achieved, the mechanical properties and production efficiency of the pipe are improved, the cost is reduced and the recycling of the coolant is promoted.
Smart Images

Figure CN223478323U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic pipe machining, and in particular to a plastic pipe flaring and atomizing cooling device. Background Technology
[0002] Plastic pipes are widely used in various industries. For quick connection between pipes, one end needs to be flared. However, current plastic pipe flaring equipment often produces pipes where uneven cooling causes uneven shrinkage and deformation at the flared end, resulting in poor mechanical properties. This affects subsequent pipe connections and service life, and severe deformation at the flared end can render the entire pipe unusable. (Chinese Patent CN) 214517183U discloses a plastic pipe flaring mold, including a device body (1), an electromechanical box (2), a flaring mold (4), a clamping plate (5), and a clamping control box (10). The electromechanical box (2) is embedded and connected to the top side of the device body (1). A central controller (14) is fixedly connected to the top side of the inside of the electromechanical box (2). An electromechanical main board (15) is fixedly connected to the bottom side of the inside of the electromechanical box (2). A hydraulic device (3) is embedded and connected to the middle side of the electromechanical box (2). An operating plate (7) is embedded and connected to the middle side of the front of the device body (1). A flared mold (4) is embedded in the center of the main body (1). A spray nozzle (27) is embedded in the center of the front of the flared mold (4). An atomizer (28) is fixedly connected to the bottom of the flared mold (4). An infusion tube (26) is embedded in one side of the bottom of the atomizer (28). A suction pump (29) is embedded in the bottom end of the infusion tube (26). A telescopic control plate (17) is embedded in the bottom end of the flared mold (4). A clamping plate (5) is embedded in one side of the center of the outer part of the flared mold (4). A pad (11) is embedded in the inner side of the center of the clamping plate (5). A slider (25) is fixedly connected to the bottom of the clamping plate (5). A groove (24) is embedded in the bottom end of the slider (25). A drive block (23) is embedded in both sides of the bottom end of the groove (24). An auxiliary clamping plate (6) is embedded in one side of the outer bottom end of the clamping plate (5). A drive controller (18) is fixedly connected to one side of the inner middle part of the device body (1). A cooling controller (19) is fixedly connected to one side of the bottom end of the drive controller (18). Support seats (8) are embedded in both sides of the bottom of the device body (1). Coolant is embedded in one side of the top of the support seat (8). The coolant tank (20) has a clamping control box (10) embedded in one side of its middle section. The clamping control box (10) has a moving driver (21) fixedly connected to the top side of its interior. The moving driver (21) has a control panel (22) fixedly connected to the bottom side of its bottom section. The cooling controller (19) controls the pump (29) to draw coolant from the coolant tank (20) through the delivery pipe (26) and conduct it to the atomizer (28). The atomizer (28) atomizes the liquid and sprays it out through the spray nozzle (27), so that the flared pipe is cooled in a flared shape and can achieve the purpose of shaping more quickly.After the plastic pipe is flared, the mold forming cooling mechanism completely wraps around the outside of the flaring mold. The atomized liquid sprayed from the nozzle can only cool the unheated part of the pipe at the rear of the flared section. Therefore, the cooling mechanism cannot cool the flared part, thus failing to achieve rapid cooling or resulting in poor cooling effect. Summary of the Invention
[0003] The purpose of this invention is to provide a plastic pipe flaring atomizing cooling device that provides uniform cooling, high cooling efficiency, reduces costs, and improves the quality of pipe products.
[0004] Existing atomization cooling technology involves gradually cooling the flared section by spraying atomized coolant inside the pipe or cooling the flaring mold. This method is slow and ineffective. This invention uses external spray atomized coolant to directly cool the flared section of the pipe.
[0005] A plastic pipe flaring and atomizing cooling device includes a main body, an electromechanical box, a flaring mold, a clamping plate, a clamping control box, a circulating water tank, and a water pump. The water pump is connected to the circulating water tank. The device also includes a cylindrical shell with sealing plates at both ends. The sealing plates have a through hole in the center that allows the pipe and the flaring mold to pass through. The shell has a pipe that penetrates through it. Multiple atomizing nozzles are located at the end of the pipe. A fan is located above the shell and extends into the shell. A return water port is located at the bottom of the shell. The other end of the atomizing nozzle pipe is connected to the water pump through a pipe. The return water port is connected to the circulating water tank through a vacuum pump.
[0006] The aforementioned plastic flared-mouth atomizing cooling device comprises an atomizing nozzle including a first flow channel, a second flow channel, a nozzle body, a third flow channel, a locking cap, a nozzle, a mixing chamber, and a spray nozzle. The first, second, and third flow channels are housed within the cylindrical nozzle body. The second flow channel is located on the central axis of the nozzle body, and its outlet has a pointed constriction. The nozzle is connected to the nozzle body via the locking cap, forming a hemispherical mixing chamber between the nozzle and the nozzle body. A micro-slit is provided at the bottom of the hemispherical mixing chamber and the pointed constriction, together with the nozzle, to form the spray nozzle. This structure provides rapid mixing, rapid spraying, and rapid cooling of the coolant.
[0007] The aforementioned plastic flared-mouth atomizing cooling device comprises an atomizing nozzle including a first flow channel, a second flow channel, a nozzle body, a third flow channel, a fourth flow channel, a locking cap, a nozzle, a mixing chamber, and a bearing. The first, second, and third flow channels are located within the cylindrical nozzle body, with the second flow channel positioned on the central axis of the nozzle body. All three flow channels communicate with the mixing chamber. The nozzle is connected to the nozzle body via a locking cap, and a bearing connects the nozzle and the locking cap. A fourth flow channel is located in the middle of the nozzle, and an outlet at the end of the fourth flow channel is at a certain angle and communicates with it. This structure uniformly mixes the coolant and cools the pipe material.
[0008] The aforementioned plastic flared atomizing cooling device has at least two sets of nozzles that are symmetrical about the central axis.
[0009] The aforementioned plastic flared-mouth atomizing cooling device comprises an atomizing nozzle including a first flow channel, a second flow channel, a nozzle body, a third flow channel, a locking cap, a nozzle, and a spray nozzle. The second flow channel is located on the central axis of the nozzle body, and the nozzle is fixed inside the second flow channel. The locking cap is connected to the outside of the nozzle body, and the locking cap has symmetrically distributed first and third flow channels. The ends of the nozzle body, the locking cap, and the nozzle form an annular micro-slit spray nozzle. This structure provides high spray pressure and a large spray area.
[0010] The aforementioned plastic flared atomizing cooling device has at least two sets of atomizing nozzles, and the position of the atomizing nozzles is higher than that of the return water port.
[0011] The aforementioned plastic flared atomizing cooling device further includes a one-way valve between the fan and the housing.
[0012] The aforementioned plastic flared-mouth atomizing cooling device includes fans arranged around the perimeter of the casing, with the fan outlet higher than the water return outlet. Multiple fans can be installed depending on the pipe diameter to accelerate pipe cooling and simultaneously blow away excess moisture from the pipe.
[0013] Beneficial effects
[0014] This invention employs atomized cooling, which allows the coolant to be sprayed evenly and directly onto the flared portion of the pipe for rapid cooling and shaping. It also avoids the coolant being sprayed directly onto the flaring mold, which would cause the mold to cool down too much and hinder the next flaring process. Furthermore, this invention uses a fan to disperse the coolant on the pipe surface, facilitating the recycling and reuse of the coolant, while also cooling the flared portion of the pipe. Attached Figure Description
[0015] Figure 1 This is a schematic diagram illustrating the production process of this utility model.
[0016] Figure 2This is a schematic diagram of the atomizing nozzle of this utility model.
[0017] Figure 3 This is a schematic diagram of the atomizing nozzle of this utility model.
[0018] Figure 4 This is a schematic diagram of the atomizing nozzle of this utility model.
[0019] Figure 5 This is a schematic diagram of the atomizing nozzle of this utility model.
[0020] Figure 6 This is a schematic diagram of multiple sets of fans according to this utility model.
[0021] In the diagram, 1 is the sealing plate, 2 is the housing, 3 is the fan, 4 is the nozzle, 5 is the water pump, 6 is the vacuum pump, 7 is the flaring mold, 8 is the return port, 41 is the first flow channel, 42 is the second flow channel, 43 is the nozzle body, 44 is the third flow channel, 45 is the locking cap, 46 is the nozzle, 47 is the nozzle outlet, 48 is the mixing chamber, and 49 is the bearing. Detailed Implementation
[0022] Example 1, referring to Figure 1 , 5 The present invention comprises a sealing plate 1, a housing 2, a fan 3, a nozzle 4, a water pump 5, and a vacuum pump 6. The housing 2 is provided with sealing plates 1 at both ends. The sealing plate 1 has a through hole in the center that can pass through the pipe and the flaring mold. The housing 2 is provided with a pipe that penetrates the housing. The end of the pipe is provided with multiple sets of atomizing nozzles 4. The first flow channel 41 is a compressed air inlet flow channel, the second flow channel 42 is a main coolant inlet flow channel, and the third flow channel 44 is a low-temperature coolant inlet flow channel. The cooling medium of the first flow channel 41, the second flow channel 42 and the third flow channel 44 passes through the nozzle body 43 and is mixed in the mixing chamber 48 formed by the locking cap 45, the nozzle 46 and the nozzle body 43. Then it is sprayed out of the cooling pipe through the nozzle 47. The fan 3 is provided above the housing 2 and extends into the housing. The bottom of the housing is also provided with a water return port. The other end of the atomizing nozzle pipe is connected to the water pump 5, and the water return port is connected to the vacuum pump 6. After the heated pipe is inserted into the flaring mold 7 and the forming is completed, the water pump 5 is started. Circulating water is sprayed out from the atomizing nozzle 4 to cool the flared part of the shaped pipe. After cooling, the fan 3 and vacuum pump 6 are turned on to blow off the water droplets on the surface of the pipe. The circulating water and hot air are sucked away by the vacuum pump 6.
[0023] Example 2, refer to Figure 2 Unlike in Example 1, this atomizing nozzle has a simple structure, a fast mixing speed of coolant, a fast spraying speed, and a fast cooling speed.
[0024] Example 3, referring to Figure 3 Unlike in Example 2, this atomizing nozzle structure can uniformly mix the coolant and uniformly cool the pipe.
[0025] Example 4, refer to Figure 4 Unlike Example 3, this structure has a higher injection pressure, a larger injection area, and a better cooling effect.
[0026] Example 5, refer to Figure 6 Unlike in Example 4, this structure can be equipped with multiple sets of fans depending on the pipe diameter to accelerate the cooling of the pipe and blow away excess moisture on the pipe.
Claims
1. A plastic pipe flaring and atomizing cooling device, comprising a main body, an electromechanical box, a flaring mold, a clamping plate, a clamping control box, a circulating water tank, and a water pump, wherein the water pump and the circulating water tank are connected, characterized in that: It also includes a cylindrical shell with sealing plates at both ends. The sealing plates have a through hole in the center that allows the pipe and flaring mold to pass through. The shell has a pipe that runs through it, and multiple atomizing nozzles are located at the end of the pipe. A fan that extends into the shell is located above it. A water return port is located at the bottom of the shell. The other end of the atomizing nozzle pipe is connected to a water pump through a pipe. The water return port is connected to a circulating water tank through a vacuum pump.
2. The plastic pipe flaring and atomizing cooling device as described in claim 1, characterized in that: The atomizing nozzle includes a first flow channel, a second flow channel, a nozzle body, a third flow channel, a locking cap, a nozzle, a mixing chamber, and a nozzle orifice. The first, second, and third flow channels are located within the cylindrical nozzle body. The second flow channel is located on the central axis of the nozzle body. The outlet of the second flow channel has a pointed constriction. The nozzle is connected to the nozzle body through the locking cap. A hemispherical mixing chamber is formed between the nozzle and the nozzle body. A micro-slit is provided at the bottom of the pointed constriction and the hemispherical mixing chamber. The micro-slit, the pointed constriction, and the nozzle form a nozzle orifice.
3. The plastic pipe flaring and atomizing cooling device as described in claim 1, characterized in that: The atomizing nozzle comprises a first flow channel, a second flow channel, a nozzle body, a third flow channel, a fourth flow channel, a locking cap, a nozzle, a mixing chamber, and a bearing. The first, second, and third flow channels are located within the cylindrical nozzle body. The second flow channel is located on the central axis of the nozzle body. The first, second, and third flow channels are all connected to the mixing chamber. The nozzle is connected to the nozzle body via a locking cap, and the nozzle and locking cap are connected by a bearing. A fourth flow channel is located in the middle of the nozzle, and an orifice is located at the end of the fourth flow channel at a certain angle and communicating with the fourth flow channel.
4. The plastic pipe flaring and atomizing cooling device as described in claim 3, characterized in that: The nozzles are at least two sets symmetrical about the central axis.
5. The plastic pipe flaring and atomizing cooling device as described in claim 1, characterized in that: The atomizing nozzle includes a first flow channel, a second flow channel, a nozzle body, a third flow channel, a locking cap, a nozzle, and a nozzle orifice. The second flow channel is located on the central axis of the nozzle body, the nozzle is fixed inside the second flow channel, and the locking cap is connected to the outside of the nozzle body. The locking cap has symmetrically distributed first and third flow channels. The end of the nozzle body, the end of the locking cap, and the end of the nozzle form an annular micro-slit nozzle orifice.
6. A plastic pipe flaring and atomizing cooling device as described in any one of claims 2-5, characterized in that: The atomizing nozzles are at least two sets, and the atomizing nozzles are positioned higher than the return water inlet.
7. The plastic pipe flaring and atomizing cooling device as described in claim 6, characterized in that: A one-way valve is also provided between the fan and the casing.
8. The plastic pipe flaring and atomizing cooling device as described in claim 7, characterized in that: The fan is located around the perimeter of the casing, with the fan outlet higher than the water return outlet.
Citation Information
Patent Citations
Plastic pipe flaring die
CN214517183U