Machine barrel water-cooled single-screw high-speed extruder
By using a water-cooled barrel design and a cooling water circulation system to cool the extruded products, the problem of environmental limitations of air-cooling methods is solved, achieving efficient cooling and stable production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-03-03
AI Technical Summary
Traditional single-screw high-speed extruders use air cooling, which is limited by ambient temperature and wind speed. In particular, it is difficult to guarantee the quality of extruded products in high-temperature environments.
The barrel adopts a water-cooled design. By setting up a cooling water inlet and outlet tank and a cooling water circulation ring, the cooling water is circulated through spiral cooling water pipes and connecting water pipes to cool the extruded products and enhance the cooling effect.
It achieves efficient cooling of extruded products under various environmental conditions, improving product quality and production stability.
Smart Images

Figure CN223961702U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of extruder technology, specifically to a barrel-cooled single-screw high-speed extruder. Background Technology
[0002] A single-screw high-speed extruder is a machine used for the plastic extrusion of pipes. It typically features high torque, large thrust, convenient operation, user-friendly control interface, high-speed extrusion, and high-yield and high-quality products. The working principle of a single-screw high-speed extruder can be divided into four steps: feeding, melting, extrusion, and cooling. Plastic granules are first fed into the feed section of the screw cavity through the feeding system. Then, the screw rotates at high speed, pushing the granules into the mixing and conveying area, where they melt by contact with the heater. The molten plastic is pushed towards the die area, where it is shaped to form the desired plastic product. Traditional single-screw high-speed extruders usually use air cooling to cool the extruded products. However, air cooling is limited by ambient temperature and wind speed, resulting in limited cooling effect. Especially in high-temperature environments, the cooling effect is greatly reduced, making it difficult to guarantee the quality of the extruded products. Utility Model Content
[0003] The purpose of this invention is to provide a barrel-cooled single-screw high-speed extruder to solve the problem mentioned in the background art that traditional single-screw high-speed extruders usually use air cooling to cool the extruded products. However, air cooling is limited by ambient temperature and wind speed, and the cooling effect is limited. Especially in high-temperature environments, the air cooling effect is greatly reduced, making it difficult to guarantee the quality of the extruded products.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a water-cooled single-screw high-speed extruder, comprising:
[0005] Fixed bracket;
[0006] The extruder body is mounted on top of a fixed support.
[0007] The discharge cylinder is located at the discharge end of the extruder body;
[0008] The outer fixing frame is symmetrically arranged on the outside of the discharge cylinder;
[0009] Cooling water rings are symmetrically and equidistantly arranged inside the discharge cylinder;
[0010] Spiral cooling water pipe, which is installed inside the discharge cylinder;
[0011] The cooling water inlet and outlet are located outside the outer fixed frame and are used for supplying and discharging cooling water into the spiral cooling water pipe and the cooling water circulation ring.
[0012] As a preferred embodiment of this utility model: the cooling water inlet and outlet section includes a cooling water inlet tank and a cooling water outlet tank. A cooling water inlet tank is provided on one side of each of the two outer fixed frames, and a cooling water outlet tank is provided on the other side of each of the two outer fixed frames. The cooling water guide ring is connected to the cooling water inlet tank via a water pipe, and the cooling water guide ring is connected to the cooling water outlet tank via a water pipe. Both ends of the spiral cooling water guide pipe are fixedly connected to connecting water pipes. One of the cooling water inlets is fixedly connected to one of the connecting water pipes, and one of the cooling water outlet tanks is fixedly connected to the other connecting water pipe.
[0013] As a preferred embodiment of this utility model: a cooling water inlet pipe is fixedly connected to one side of the cooling water inlet tank, and a cooling water outlet pipe is fixedly connected to the one side of the cooling water outlet tank.
[0014] As a preferred embodiment of this utility model: a support top frame is fixedly connected to the bottom of the discharge cylinder, and the bottom of the support top frame is fixedly connected to a fixed bracket.
[0015] As a preferred embodiment of this utility model: the bottom of the cooling water inlet tank and the cooling water outlet tank are fixedly connected to a fixing frame, and the bottom of the fixing frame is fixedly connected to a fixing bracket.
[0016] As a preferred embodiment of this utility model: a material box is provided on the top of the extruder body, a fixed side box is fixedly connected to one side of the fixed bracket, and a controller is installed on the top of the fixed side box.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, by setting up a cooling water inlet tank, a cooling water outlet tank, and a cooling water conduction ring, realizes the injection of cooling water into the cooling water inlet tank. The cooling water enters each cooling water conduction ring through water pipes. After the cooling water in the cooling water conduction ring exchanges heat with the extruded product, it enters the cooling water outlet tank through water pipes and is then discharged through the cooling water outlet pipe. The continuous injection of cooling water cools the extruded product. By setting up a spiral cooling water pipe and connecting water pipes, the cooling water in one cooling water inlet tank enters the spiral cooling water pipe through one connecting water pipe. After cooling the extruded product, it enters the cooling water outlet tank through another connecting water pipe and is discharged through the cooling water outlet pipe. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the internal structure of the extruder body of this utility model;
[0020] Figure 3 This is a front view of the present utility model;
[0021] Figure 4This is a schematic diagram of the internal structure of the discharge cylinder of this utility model.
[0022] In the diagram: 1. Fixed bracket; 2. Extruder body; 3. Support top frame; 4. Discharge cylinder; 5. Outer fixed frame; 6. Fixed frame; 7. Cooling water inlet tank; 8. Cooling water inlet pipe; 9. Spiral cooling water pipe; 10. Cooling water ring; 11. Connecting water pipe; 12. Material box; 13. Fixed side box; 14. Controller; 15. Cooling water outlet pipe; 16. Cooling water outlet tank. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figures 1 to 4 This utility model provides a technical solution: a barrel-cooled single-screw high-speed extruder, comprising: a fixed support 1; an extruder body 2 mounted on top of the fixed support 1; a discharge cylinder 4 fixedly connected to the discharge end of the extruder body 2; an outer fixed frame 5 symmetrically fixedly connected to the outside of the discharge cylinder 4; a cooling water guide ring 10 symmetrically and equidistantly fixedly connected to the inside of the discharge cylinder 4; a spiral cooling water pipe 9 fixedly connected to the inside of the discharge cylinder 4; and a cooling water inlet / outlet located outside the outer fixed frame 5 for supplying and discharging cooling water into the spiral cooling water pipe 9 and the cooling water guide ring 10.
[0025] It is understood that the extruder body 2 of this utility model mainly includes: a mounting bracket, which provides stable support for the entire equipment and ensures that the extruder will not shake or tilt during operation; an extruder, which is the core part of the extruder and contains key components such as a screw and a barrel. The extruder is mounted on top of the mounting bracket and is responsible for melting, plasticizing, and extruding the plastic material; an outlet head, which is fixed to one end of the extruder and is used to extrude the molten and plasticized plastic material into shape; a screw, a key component of the extruder, which moves, pressurizes, and melts the plastic material in the barrel through rotation; a transmission system, which supplies the screw with the torque and speed required during the extrusion process; a material box 12, which is located on top of the extruder and is used to store the plastic material to be processed; and a controller, which is responsible for monitoring and controlling the operating parameters of the extruder through extrusion. The machine body 2 extrudes the extruded product into the discharge cylinder 4. The cooling water inlet pipe 8 is connected to an external water cooling device. The extruded product enters the discharge cylinder 4, and the cooling water inlet pipe 8 injects cooling water into the cooling water inlet tank 7. The cooling water inlet tank 7 injects cooling water into the cooling water guide ring 10 through a water pipe. The cooling water in the discharge cylinder 4 is cooled through each cooling water guide ring 10. The cooling water in one of the cooling water inlet tanks 7 enters the spiral cooling water pipe 9 through one of the connecting water pipes 11. After the cooling water in the cooling water guide ring 10 has completed heat exchange, it enters the cooling water outlet tank 16 through a water pipe. The spiral cooling water pipe 9 enters the cooling water outlet tank 16 through another connecting water pipe 11. The used cooling water can then be discharged through the cooling water outlet pipe 15 on one side of the cooling water outlet tank 16, thus completing the cooling operation of the extruded product in the discharge cylinder 4.
[0026] Please see Figures 1 to 4 The cooling water inlet and outlet section includes a cooling water inlet tank 7 and a cooling water outlet tank 16. A cooling water inlet tank 7 is provided on one side of each of the two outer fixed frames 5, and a cooling water outlet tank 16 is provided on the other side of each of the two outer fixed frames 5. The cooling water guide ring 10 is connected to the cooling water inlet tank 7 by a water pipe, and the cooling water guide ring 10 is connected to the cooling water outlet tank 16 by a water pipe. Both ends of the spiral cooling water pipe 9 are fixedly connected to connecting water pipes 11. One cooling water inlet tank 7 is fixedly connected to one connecting water pipe 11, and one cooling water outlet tank 16 is fixedly connected to the other connecting water pipe 11.
[0027] It is understood that the cooling water in the cooling water inlet tank 7 of this utility model enters the cooling water circulation ring 10 through the water pipe, and enters the cooling water outlet tank 16 through the water pipe on the other side of the cooling water circulation ring 10.
[0028] Please see Figures 1 to 4 A cooling water inlet pipe 8 is fixedly connected to one side of the cooling water inlet tank 7, and a cooling water outlet pipe 15 is fixedly connected to one side of the cooling water outlet tank 16.
[0029] It is understood that the cooling water inlet pipe 8 of this utility model supplies cooling water to the cooling water inlet tank 7. After the cooling water exchanges heat through the cooling water guide ring 10 and the spiral cooling water guide pipe 9, it is discharged and collected through the cooling water outlet pipe 15 on the side of the cooling water outlet tank 16.
[0030] Please see Figures 1 to 4 The bottom of the discharge cylinder 4 is fixedly connected to a support top frame 3, and the bottom of the support top frame 3 is fixedly connected to the fixed bracket 1.
[0031] It is understandable that the present invention supports and fixes the discharge cylinder 4 by means of the supporting top frame 3.
[0032] Please see Figures 1 to 4 The bottom of the cooling water inlet tank 7 and the cooling water outlet tank 16 are fixedly connected to the fixing frame 6, and the bottom of the fixing frame 6 is fixedly connected to the fixing bracket 1.
[0033] It is understandable that this utility model uses a fixing frame 6 to support and fix the cooling water inlet tank 7 and the cooling water outlet tank 16, thereby improving the overall stability.
[0034] Please see Figures 1 to 4 The top of the extruder body 2 is provided with a material box 12, and a fixed side box 13 is fixedly connected to one side of the fixed bracket 1. A controller 14 is installed on the top of the fixed side box 13.
[0035] It is understood that the present invention supplies raw materials into the extruder body 2 through the feed box 12.
[0036] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and 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 this utility model.
[0037] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.
[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[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 water-cooled single-screw high-speed extruder, characterized in that, include: Fixed bracket (1); Extruder body (2), which is mounted on top of fixed bracket (1); The discharge cylinder (4) is located at the discharge end of the extruder body (2); The outer fixing frame (5) is symmetrically arranged on the outside of the discharge cylinder (4); Cooling water circulation ring (10) is symmetrically and equidistantly arranged inside the discharge cylinder (4); Spiral cooling water pipe (9) is installed inside the discharge cylinder (4); The cooling water inlet and outlet are located outside the outer fixed frame (5) and are used to supply and discharge cooling water in the spiral cooling water pipe (9) and the cooling water ring (10).
2. The barrel-cooled single-screw high-speed extruder according to claim 1, characterized in that: The cooling water inlet and outlet section includes a cooling water inlet tank (7) and a cooling water outlet tank (16). A cooling water inlet tank (7) is provided on one side of each of the two outer fixed frames (5), and a cooling water outlet tank (16) is provided on the other side of each of the two outer fixed frames (5). The cooling water guide ring (10) is connected to the cooling water inlet tank (7) by a water pipe, and the cooling water guide ring (10) is connected to the cooling water outlet tank (16) by a water pipe. Both ends of the spiral cooling water pipe (9) are fixedly connected to connecting water pipes (11). One of the cooling water inlets (7) is fixedly connected to one of the connecting water pipes (11), and one of the cooling water outlet tanks (16) is fixedly connected to the other connecting water pipe (11).
3. A water-cooled single-screw high-speed extruder according to claim 2, characterized in that: A cooling water inlet pipe (8) is fixedly connected to one side of the cooling water inlet tank (7), and a cooling water outlet pipe (15) is fixedly connected to one side of the cooling water outlet tank (16).
4. A water-cooled single-screw high-speed extruder according to claim 1, characterized in that: The bottom of the discharge cylinder (4) is fixedly connected to a support top frame (3), and the bottom of the support top frame (3) is fixedly connected to a fixed bracket (1).
5. A water-cooled single-screw high-speed extruder according to claim 2, characterized in that: The bottom of the cooling water inlet tank (7) and the cooling water outlet tank (16) are fixedly connected to a fixing frame (6), and the bottom of the fixing frame (6) is fixedly connected to the fixing bracket (1).
6. A water-cooled single-screw high-speed extruder according to claim 1, characterized in that: The extruder body (2) is provided with a material box (12) on the top, and a fixed side box (13) is fixedly connected to one side of the fixed bracket (1). A controller (14) is installed on the top of the fixed side box (13).