A continuous extrusion and shaping device for plastic pipes

By designing a heat-conducting copper tube and a preheating cavity ring, the problem of unrecoverable heat from the cooling of plastic tubes is solved, enabling the reuse of heat and the recycling of coolant, thus improving shaping efficiency and saving energy.

CN224527974UActive Publication Date: 2026-07-21ANHUI HESHENG NEW MATERIAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI HESHENG NEW MATERIAL TECH CO LTD
Filing Date
2025-09-01
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing plastic pipe extrusion and shaping equipment, the heat generated by cooling the plastic pipe cannot be recovered and reused, resulting in heat loss and waste, which increases production costs.

Method used

The design employs a heat-conducting copper pipe and a preheating cavity ring. A water pump delivers coolant from the coolant tank to the heat-conducting copper pipe, absorbing the heat from the shaping tube. The high-temperature coolant then preheats the material in the hopper through a guide pipe. Combined with a stirring mechanism and a cooling fan, the coolant can be reused.

Benefits of technology

This technology enables the reuse of heat from cooling and shaping plastic pipes, improving shaping efficiency, saving energy, and reducing production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of tubular product production, and disclose a kind of plastic tubular product continuous extrusion setting device, including extrusion pipe, the one end of extrusion pipe is fixedly arranged with extrusion mechanism, the both sides of extrusion pipe inner wall are fixedly arranged with electrothermal plate, the one side fixed mounting of extrusion pipe top is hoppers, the surface of hopper is fixedly arranged with preheating cavity ring.The plastic tubular product continuous extrusion setting device is set by heat conduction copper pipe and preheating cavity ring, opens water pump, and cooling liquid in cooling liquid tank is pumped out and transported into heat conduction copper pipe, and heat conduction copper pipe absorbs heat in setting tube, and it is convenient for plastic tubular product cooling setting, and high-heat cooling liquid enters preheating cavity ring by flow guide pipe, and material in hopper is preheated, and it is convenient for subsequent material melting, reaches the effect that heat absorbed by cooling setting plastic tubular product is reused, improves plastic tubular product setting efficiency on the one hand, and saves energy on the other hand.
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Description

Technical Field

[0001] This utility model relates to the field of pipe manufacturing technology, and in particular to a continuous extrusion and shaping device for plastic pipes. Background Technology

[0002] Plastic pipes, as an important component of building materials, are widely accepted by users due to their superior performance, hygiene, environmental friendliness, and low consumption. In the production of plastic pipes, extrusion shaping is required. The raw material is heated to a high temperature inside the extrusion die, where it becomes plasticized and molten, gradually transforming into a tubular shape. At this initial stage, the material is still very soft at high temperatures and its shape can change at any time. Therefore, it needs to be cooled and shaped as quickly as possible to solidify and form the final product.

[0003] A plastic pipe extrusion and shaping device disclosed in announcement number CN218227758U has the following advantages: through the cooperation of the base plate, shell, sleeve, vertical rod, box, square box, extrusion die, pulley, straight pipe, outer shell, base, delivery pump, curved pipe and drying structure, the device can be used to drive the first grooved wheel to rotate through the motor, the belt to drive the first grooved wheel and the second grooved wheel to rotate, the second grooved wheel to drive the straight plate to rotate, the straight plate to drive the fan to rotate, and the fan to dry the plastic pipe, avoiding dust from adhering to the outer wall of the plastic pipe, ensuring the cleanliness of the plastic pipe and ensuring the appearance of the finished product.

[0004] However, this plastic pipe extrusion and shaping device has the following disadvantages: it is not convenient to recover and reuse the heat generated by cooling the plastic pipe, the heat loss and waste are not conducive to energy conservation, and the production cost is high. Utility Model Content

[0005] (a) Technical problems to be solved The purpose of this invention is to provide a continuous extrusion and shaping device for plastic pipes, which solves the problems mentioned in the background art, such as the inconvenience of recovering and reusing the heat generated by cooling plastic pipes, the waste of heat loss which is not conducive to energy conservation, and the high production cost.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a continuous extrusion and shaping device for plastic pipes, comprising an extrusion tube, an extrusion mechanism fixedly mounted at one end of the extrusion tube, heating plates fixedly mounted on both sides of the inner wall of the extrusion tube, a hopper fixedly mounted on one side of the top surface of the extrusion tube, a preheating cavity ring fixedly mounted on the surface of the hopper, a fixing frame fixedly mounted on the top surface of the hopper, a stirring mechanism fixedly mounted on the top surface of the fixing frame, a shaping tube fixedly mounted at one end of the extrusion tube, a heat-conducting copper tube fixedly mounted on the inner wall of the shaping tube, a return pipe extending through one side of the surface of the preheating cavity ring, a coolant tank extending through one end of the return pipe, a cooling component fixedly mounted on the top surface of the coolant tank, and a liquid delivery component fixedly mounted on one side of the coolant tank.

[0007] As a further embodiment of this utility model, the extrusion mechanism includes an A servo motor and an extrusion screw. The A servo motor is fixedly installed at one end of the extrusion tube, and the extrusion screw is fixedly installed at the output end of the A servo motor. The extrusion mechanism is used to extrude molten plastic.

[0008] As a further embodiment of this utility model, the stirring mechanism includes a B servo motor and a stirring frame. The B servo motor is fixedly installed on the top surface of the fixed frame, and the stirring frame is fixedly installed at the output end of the B servo motor. The stirring mechanism is used to stir plastic granules.

[0009] As a further embodiment of this utility model, the cooling component includes a cooling fan and a dust filter. The cooling fan is fixedly installed on the top surface of the coolant tank, and the dust filter is fixedly installed on the top surface of the cooling fan. The cooling component is used to quickly cool the coolant.

[0010] As a further embodiment of this utility model, the infusion assembly includes a water pump and an infusion pipe. The water pump is fixedly installed on one side of the coolant tank, and the infusion pipe is fixedly installed at the output end of the water pump. One end of the infusion pipe is connected to a heat-conducting copper pipe. The infusion assembly is used to deliver coolant to the heat-conducting copper pipe.

[0011] As a further embodiment of this utility model, a flow guide pipe is provided through one end of the heat-conducting copper tube, and one end of the flow guide pipe is provided through the interior of the preheating cavity ring. The flow guide pipe facilitates the delivery of coolant from the heat-conducting copper tube to the preheating cavity ring.

[0012] As a further embodiment of this utility model, a temperature controller is connected to one side of the heating plate via an electric wire. The temperature controller is fixedly installed on the outer surface of the extrusion tube and is used to control the heating temperature of the heating plate.

[0013] As a further embodiment of this utility model, the input pipe of the water pump is provided with a liquid extraction pipe, one end of which is provided inside the coolant tank, and the liquid extraction pipe facilitates the extraction of coolant.

[0014] As a further embodiment of this utility model, a drain pipe is provided through the bottom of the surface of the coolant tank, a valve is fixedly installed on the surface of the drain pipe, and a cavity adapted to the plastic pipe is opened on the inner wall of the shaping tube, so that the plastic pipe can be easily formed.

[0015] As a further embodiment of this utility model, a valve is fixedly installed at the bottom of the hopper surface, and support legs are fixedly provided around the extrusion tube and the shaping tube, the support legs being used to support the extrusion tube and the shaping tube.

[0016] (III) Beneficial Effects This utility model provides a continuous extrusion and shaping device for plastic pipes, which has the following beneficial effects: 1. This continuous extrusion and shaping device for plastic pipes, through the setting of heat-conducting copper pipes and preheating cavity rings, turns on the water pump to draw coolant from the coolant tank and deliver it to the heat-conducting copper pipes. The heat-conducting copper pipes absorb the heat in the shaping tubes, facilitating the cooling and shaping of the plastic pipes. The hot coolant enters the preheating cavity ring through the guide pipe to preheat the material in the hopper, facilitating the subsequent melting of the material. This achieves the effect of reusing the heat absorbed by the cooling and shaping plastic pipes, improving the shaping efficiency of plastic pipes on the one hand, and saving energy on the other.

[0017] 2. The continuous extrusion and shaping device for plastic pipes, through the setting of cooling components and stirring mechanism, uses a B servo motor to drive the stirring frame to rotate and turn the material, so that the material can be fully preheated. The cooling fan is turned on to dissipate the heat of the coolant, so that the coolant can be cooled down again, which facilitates the reuse of the coolant. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the heat-conducting copper tube structure of this utility model; Figure 3 This is a schematic diagram of the coolant tank structure of this utility model; Figure 4 This is a schematic diagram of the extrusion tube structure of this utility model; Figure 5 This is a schematic diagram of the stirring mechanism of this utility model; Figure 6 This is a schematic diagram of the extrusion mechanism of this utility model.

[0019] In the diagram: 1. Extrusion tube; 2. Extrusion mechanism; 201. Servo motor A; 202. Extrusion screw; 3. Heating plate; 4. Hopper; 5. Preheating cavity ring; 6. Fixing frame; 7. Stirring mechanism; 701. Servo motor B; 702. Stirring frame; 8. Shaping tube; 9. Heat-conducting copper tube; 10. Return tube; 11. Coolant tank; 12. Cooling component; 1201. Cooling fan; 1202. Dustproof net; 13. Infusion component; 1301. Water pump; 1302. Infusion tube; 14. Guide tube; 15. Support leg. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] Please see Figures 1 to 6 This utility model provides a technical solution: a continuous extrusion and shaping device for plastic pipes, including an extrusion tube 1, an extrusion mechanism 2 fixedly installed at one end of the extrusion tube 1, heating plates 3 fixedly installed on both sides of the inner wall of the extrusion tube 1, a hopper 4 fixedly installed on one side of the top surface of the extrusion tube 1, a preheating cavity ring 5 fixedly installed on the surface of the hopper 4, a fixing frame 6 fixedly installed on the top surface of the hopper 4, a stirring mechanism 7 fixedly installed on the top surface of the fixing frame 6, and a shaping tube 8 fixedly installed at one end of the extrusion tube 1, with a heat-conducting... The copper pipe 9, through the setting of the heat-conducting copper pipe 9 and the preheating cavity ring 5, turns on the water pump 1301 to draw out the coolant in the coolant tank 11 and transport it into the heat-conducting copper pipe 9. The heat-conducting copper pipe 9 absorbs the heat in the shaping tube 8, which is convenient for the plastic pipe to cool and shape. The hot coolant enters the preheating cavity ring 5 through the guide pipe 14 to preheat the material in the hopper 4, which is convenient for the subsequent melting of the material. This achieves the effect of reusing the heat absorbed by the cooling and shaping plastic pipe, which improves the shaping efficiency of the plastic pipe on the one hand and saves energy on the other. A return pipe 10 is provided through one side of the surface of the preheating cavity ring 5. A coolant tank 11 is provided through one end of the return pipe 10. A cooling component 12 is fixedly provided on the top surface of the coolant tank 11. With the cooling component 12 and the stirring mechanism 7, the B servo motor 701 drives the stirring frame 702 to rotate and turn the material, so that the material can be fully preheated. The cooling fan 1201 is turned on to dissipate the heat of the coolant, so that the coolant is cooled down again, which facilitates the reuse of the coolant. A liquid delivery component 13 is fixedly installed on one side of the coolant tank 11.

[0022] The extrusion mechanism 2 includes an A servo motor 201 and an extrusion screw 202. The A servo motor 201 is fixedly installed at one end of the extrusion tube 1, and the extrusion screw 202 is fixedly installed at the output end of the A servo motor 201.

[0023] With the extrusion mechanism 2 in place, servo motor A 201 drives the extrusion screw 202 to rotate, squeezing the plastic solution into the shaping tube 8.

[0024] The stirring mechanism 7 includes a B servo motor 701 and a stirring frame 702. The B servo motor 701 is fixedly installed on the top surface of the fixed frame 6, and the stirring frame 702 is fixedly installed at the output end of the B servo motor 701.

[0025] With the addition of the stirring mechanism 7, the B servo motor 701 drives the stirring frame 702 to rotate, turning the material and allowing it to be fully preheated.

[0026] The cooling component 12 includes a cooling fan 1201 and a dust filter 1202. The cooling fan 1201 is fixedly installed on the top surface of the coolant tank 11, and the dust filter 1202 is fixedly installed on the top surface of the cooling fan 1201.

[0027] By setting the cooling component 12, the cooling fan 1201 is turned on to dissipate the heat of the coolant, thereby cooling the coolant again and facilitating its reuse.

[0028] The infusion assembly 13 includes a water pump 1301 and an infusion tube 1302. The water pump 1301 is fixedly installed on one side of the coolant tank 11, and the infusion tube 1302 is fixedly installed at the output end of the water pump 1301. One end of the infusion tube 1302 is connected to the heat-conducting copper tube 9.

[0029] By setting up the infusion assembly 13, the water pump 1301 is turned on to draw coolant from the coolant tank 11, and then delivers it to the heat-conducting copper pipe 9 through the infusion pipe 1302.

[0030] A flow guide pipe 14 is provided through one end of the heat-conducting copper pipe 9, and the other end of the flow guide pipe 14 is provided inside the preheating cavity ring 5.

[0031] The guide pipe 14 facilitates the flow of coolant from the heat-conducting copper pipe 9 into the preheating cavity ring 5.

[0032] A temperature controller is connected to one side of the heating plate 3 by a wire, and the temperature controller is fixedly installed on the outer surface of the extrusion tube 1.

[0033] The electric heating plate 3 is used to heat and melt the plastic raw material.

[0034] The water pump 1301 has a liquid extraction pipe installed through its input pipe, and one end of the liquid extraction pipe is installed inside the coolant tank 11.

[0035] The extraction pipe is designed to extract coolant from the coolant tank 11.

[0036] A drain pipe is provided through the bottom of the surface of the coolant tank 11, and a valve is fixedly installed on the surface of the drain pipe. The inner wall of the shaping tube 8 is provided with a cavity that is compatible with the plastic tube material.

[0037] The cavity design facilitates the shaping of plastic pipes.

[0038] A valve is fixedly installed at the bottom of the surface of the hopper 4, and support legs 15 are fixedly installed around the extrusion tube 1 and the shaping tube 8.

[0039] The support leg 15 serves to support the extrusion tube 1 and the shaping tube 8.

[0040] In this invention, the working steps of the device are as follows: First step: The heating plate 3 heats and melts the raw material, and the servo motor A 201 drives the extrusion screw 202 to rotate, squeezing the plastic solution into the shaping tube 8; Second step: Turn on water pump 1301 to extract coolant from coolant tank 11 and deliver it to heat-conducting copper pipe 9. Heat-conducting copper pipe 9 absorbs heat from shaping tube 8, which facilitates cooling and shaping of plastic pipe. The third step: The hot coolant enters the preheating cavity ring 5 through the guide pipe 14 to preheat the material in the hopper 4, which is convenient for subsequent material melting. The B servo motor 701 drives the stirring frame 702 to rotate and turn the material, so that the material can be fully preheated. Fourth step: The coolant flows into the coolant tank 11 through the return pipe 10. Turn on the cooling fan 1201 to dissipate the heat of the coolant, so that the coolant can be cooled down again and can be reused.

[0041] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific structure of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0042] 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 continuous extrusion and shaping device for plastic pipes, comprising an extrusion tube (1), characterized in that: One end of the extrusion tube (1) is fixedly provided with an extrusion mechanism (2), both sides of the inner wall of the extrusion tube (1) are fixedly provided with electric heating plates (3), one side of the top surface of the extrusion tube (1) is fixedly installed with a hopper (4), the surface of the hopper (4) is fixedly provided with a preheating cavity ring (5), the top surface of the hopper (4) is fixedly provided with a fixing frame (6), the top surface of the fixing frame (6) is fixedly installed with a stirring mechanism (7), one end of the extrusion tube (1) is fixedly provided with a shaping tube (8), the inner wall of the shaping tube (8) is fixedly provided with a heat-conducting copper tube (9), one side of the surface of the preheating cavity ring (5) is provided with a return pipe (10), one end of the return pipe (10) is provided with a coolant tank (11), the top surface of the coolant tank (11) is fixedly provided with a cooling component (12), and one side of the coolant tank (11) is fixedly installed with a liquid delivery component (13).

2. The continuous extrusion and shaping device for plastic pipes according to claim 1, characterized in that: The extrusion mechanism (2) includes an A servo motor (201) and an extrusion screw (202). The A servo motor (201) is fixedly installed at one end of the extrusion tube (1), and the extrusion screw (202) is fixedly installed at the output end of the A servo motor (201).

3. The continuous extrusion and shaping device for plastic pipes according to claim 1, characterized in that: The stirring mechanism (7) includes a B servo motor (701) and a stirring frame (702). The B servo motor (701) is fixedly installed on the top surface of the fixed frame (6), and the stirring frame (702) is fixedly installed at the output end of the B servo motor (701).

4. The continuous extrusion and shaping device for plastic pipes according to claim 1, characterized in that: The cooling component (12) includes a cooling fan (1201) and a dust filter (1202). The cooling fan (1201) is fixedly installed on the top surface of the coolant tank (11), and the dust filter (1202) is fixedly installed on the top surface of the cooling fan (1201).

5. The continuous extrusion and shaping device for plastic pipes according to claim 1, characterized in that: The infusion assembly (13) includes a water pump (1301) and an infusion tube (1302). The water pump (1301) is fixedly installed on one side of the coolant tank (11), and the infusion tube (1302) is fixedly installed at the output end of the water pump (1301). One end of the infusion tube (1302) is connected to the heat-conducting copper tube (9).

6. The continuous extrusion and shaping device for plastic pipes according to claim 1, characterized in that: One end of the heat-conducting copper tube (9) is provided with a flow guide tube (14), and one end of the flow guide tube (14) is provided inside the preheating cavity ring (5).

7. The continuous extrusion and shaping device for plastic pipes according to claim 1, characterized in that: A temperature controller is connected to one side of the heating plate (3), and the temperature controller is fixedly installed on the outer surface of the extrusion tube (1).

8. The continuous extrusion and shaping device for plastic pipes according to claim 5, characterized in that: The water pump (1301) has a liquid extraction pipe through its input pipe, and one end of the liquid extraction pipe is installed inside the coolant tank (11).

9. A continuous extrusion and shaping device for plastic pipes according to claim 1, characterized in that: A drain pipe is provided through the bottom of the surface of the coolant tank (11), and a valve is fixedly installed on the surface of the drain pipe. The inner wall of the shaping tube (8) is provided with a cavity that is compatible with the plastic tube.

10. A continuous extrusion and shaping device for plastic pipes according to claim 1, characterized in that: A valve is fixedly installed at the bottom of the surface of the hopper (4), and support legs (15) are fixedly installed around the extrusion tube (1) and the shaping tube (8).