A high-efficiency cooling device for a twin-screw extruder

Abstract

This utility model relates to the technical field of cooling devices. This application discloses a high-efficiency cooling device for a twin-screw extruder, including a water-cooled box. A water inlet pipe is fixedly connected to the upper part of one end of the water-cooled box, and a water outlet pipe is fixedly connected to the lower part of the other end of the water-cooled box. A conveyor belt is installed inside the water-cooled box near the end of the water inlet pipe. A second conveyor belt is installed inside the water-cooled box on one side of the conveyor belt. An air-cooled box is fixed to the top of the end of the water-cooled box away from the water inlet pipe. This utility model uses a conveyor-type cooling method. During cooling, the extruded product first enters the cold water for preliminary cooling and shaping, and then enters the air-cooled box for further cooling. This ensures the cooling effect and eliminates the need for manual transfer. This solves the problem of cumbersome operation of existing high-efficiency cooling devices for twin-screw extruders, improves the practicality of the cooling device, and reduces the workload of operators.

Description

Technical Field

[0001] This utility model application relates to the field of cooling device technology, specifically a high-efficiency cooling device for a twin-screw extruder. Background Technology

[0002] Twin-screw extruders are molding and processing equipment used for extruded products. They are widely used in the molding and processing of extruded products. After the material enters the extruder from the hopper, it is pushed into the plasticizing section by the rotation of the screw. The external heating system and the shearing and friction of the screw gradually melt and plasticize the material. The plasticized material continues to move forward for mixing and homogenization. The plasticized and mixed material is then conveyed to the die head section and extruded through a specific die. The extruded products usually need to undergo subsequent processing such as cooling, cutting, or winding.

[0003] Existing cooling devices often use a combination of water cooling and air cooling to ensure product shaping. However, this common combination requires moving the product back and forth, which can cause damage and increase the workload for staff, thus reducing the practicality of the cooling device. Summary of the Invention

[0004] To address the problem that existing high-efficiency cooling devices for twin-screw extruders are cumbersome to operate, this invention provides a high-efficiency cooling device for twin-screw extruders to solve the aforementioned problem.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-efficiency cooling device for a twin-screw extruder includes a water-cooled box. A water inlet pipe is fixedly connected to the upper part of one end of the water-cooled box, and a water outlet pipe is fixedly connected to the lower part of the other end. A conveyor belt one is installed inside the water-cooled box near the end of the water inlet pipe. A conveyor belt two is installed inside the water-cooled box on one side of the conveyor belt one side. An air-cooled box is fixedly connected to the top of the end of the water-cooled box away from the water inlet pipe. A conveyor belt three is installed inside the air-cooled box, extending from the second conveyor belt two to the side of the air-cooled box. An air box is fixedly connected to the top surface of the air-cooled box, and a fan is installed inside the air box.

[0007] Furthermore, a recycling trough is provided on the top of the water-cooled box near the air-cooled box, and the water inlet pipe and water outlet pipe are respectively connected to the water pump and the wastewater tank through water pipes.

[0008] Furthermore, both the water-cooled box and the air-cooled box have guide plates fixed to their bottom surfaces. The guide plates inside the water-cooled box are configured to slope downwards toward the water outlet pipe, and the guide plates inside the air-cooled box are configured to slope downwards toward the recovery tank.

[0009] Furthermore, each of the three conveyor belts has a conveyor roller symmetrically rotatably connected inside, and each conveyor roller is rotatably connected at both ends to the water-cooled box and the air-cooled box, respectively.

[0010] Furthermore, the conveyor rollers at the opposite ends of conveyor belt one and conveyor belt two, and at the opposite ends of conveyor belt two and conveyor belt three, all extend to the outside of the water-cooled box and the air-cooled box. A pulley is fixed to one end of each conveyor roller that extends to the outside of the water-cooled box and the air-cooled box. Adjacent pulleys are connected by a servo motor drive. A servo motor is installed on the outside of one of the pulleys, and the output end of the servo motor is fixed on the pulley.

[0011] Furthermore, ventilation windows are provided at the top of the air box and at the top of the air-cooled box below the air box, and filters are fixed inside both ventilation windows.

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

[0013] 1. In this utility model, by means of conveyor cooling, the extruded product first enters the cold water for preliminary cooling and shaping, and then enters the air-cooling box for further cooling. This ensures the cooling effect and eliminates the need for manual transfer. It solves the problem that the existing high-efficiency cooling devices for twin-screw extruders are relatively cumbersome to operate, improves the practicality of the cooling device, and reduces the workload of operators.

[0014] 2. In this utility model, by using a design of water cooling followed by air cooling, the product is prevented from deforming due to wind force during the cooling process. Furthermore, the air cooling can dry the water-cooled product, and the cooling process is completed during the drying process, which facilitates the subsequent storage of the product and further improves the practicality of the cooling device. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a high-efficiency cooling device according to an embodiment of this application;

[0017] Figure 2 yes Figure 1 A schematic cross-sectional view of the high-efficiency cooling device in the embodiment shown.

[0018] Figure 3 yes Figure 1A schematic diagram of the rear of the high-efficiency cooling device structure in the illustrated embodiment.

[0019] The meanings of the labels in the attached diagram are as follows: 1. Water-cooled box; 2. Inlet pipe; 3. Outlet pipe; 4. Conveyor belt one; 5. Conveyor belt two; 6. Conveyor roller; 7. Air-cooled box; 8. Conveyor belt three; 9. Support frame; 10. Recovery tank; 11. Guide plate; 12. Air box; 13. Fan; 14. Ventilation window; 15. Filter screen; 16. Servo motor; 17. Pulley; 18. Conveyor belt. Detailed Implementation

[0020] To make the purpose, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] Reference Figure 1 , Figure 2 and Figure 3 A high-efficiency cooling device for a twin-screw extruder includes a water-cooled box 1. A water inlet pipe 2 is fixedly connected to the upper part of one end of the water-cooled box 1, and a water outlet pipe 3 is fixedly connected to the lower part of the other end of the water-cooled box 1. The water inlet pipe 2 and the water outlet pipe 3 are respectively connected to a water pump and a wastewater tank via water pipes. A conveyor belt 4 is installed inside the water-cooled box 1 near the end of the water inlet pipe 2. A second conveyor belt 5 is installed inside the water-cooled box 1 on the side of the first conveyor belt 4. An air-cooled box 7 is fixedly fixed to the top of the end of the water-cooled box 1 away from the water inlet pipe 2. A recovery trough 10 is opened on the top of the water-cooled box 1 near the air-cooled box 7. The water-cooled box 1 and the air-cooled box 7 are connected... Each box 7 has a guide plate 11 fixed on its bottom surface. The guide plate 11 inside the water-cooled box 1 is set to be inclined downward toward the water outlet pipe 3. The guide plate 11 inside the air-cooled box 7 is set to be inclined downward toward the recovery tank 10. The second conveyor belt 5 extends to the inside side of the air-cooled box 7 and is provided with a third conveyor belt 8. The third conveyor belt 8 is installed inside the air-cooled box 7. The top surface of the air-cooled box 7 is fixed with a blower box 12. The blower box 13 is installed inside the blower box 12. Ventilation windows 14 are opened at the top of the blower box 12 and the top of the air-cooled box 7 below the blower box 12. Filter screens 15 are fixed inside the two ventilation windows 14.

[0022] Specifically, when product cooling is required, cold water is pumped through inlet pipe 2 to the water-cooled box 1. The product then enters the water-cooled box 1 from inlet pipe 2 and is cooled by the water inside the water-cooled box 1. The initially cooled product floats on the side of conveyor belt 2 5 or settles on the top surface of conveyor belt 1 4 under the push of subsequent products. Driven by conveyor belt 1 4 and conveyor belt 2 5, it moves into the air-cooled box 7. When it moves into the air-cooled box 7, it is pushed to the top surface of conveyor belt 3 8. At this time, fan 13 runs to air-cool the top surface of conveyor belt 3 8. Excess water slides through conveyor belt 3 8 to the bottom of the air-cooled box 7 and flows back into the water-cooled box 1 through recovery tank 10 under the guidance of guide plate 11. The air-dried and cooled product is discharged from the air-cooled box 7, and the heated cooling water is discharged through outlet pipe 3.

[0023] As an optimization solution, such as Figure 2 and Figure 3 As shown, conveyor rollers 6 are symmetrically rotatably connected inside conveyor belt 1 4, conveyor belt 2 5, and conveyor belt 3 8. Each conveyor roller 6 is rotatably connected at both ends to the water-cooled box 1 and the air-cooled box 7, respectively. The conveyor rollers 6 at the opposite ends of conveyor belt 1 4 and conveyor belt 2 5, and at the opposite ends of conveyor belt 2 5 and conveyor belt 3 8, extend to the outside of the water-cooled box 1 and the air-cooled box 7. A pulley 17 is fixed to one end of the conveyor roller 6 that extends to the outside of the water-cooled box 1 and the air-cooled box 7. Adjacent pulleys 17 are connected by a servo motor 16. A servo motor 16 is installed on the outside of one of the pulleys 17, and the output end of the servo motor 16 is fixed on the pulley 17.

[0024] Specifically, when conveyor belt 1 (4), conveyor belt 2 (5), and conveyor belt 3 (8) need to move, the servo motor 16 is turned on, causing the servo motor 16 to run and drive the pulley 17 to rotate. The pulley 17 drives another pulley 17 to rotate through the conveyor belt 18, which in turn drives conveyor belt 1 (4) and conveyor belt 2 (5). Conveyor belt 2 (5) drives conveyor belt 3 (8) to rotate through another set of pulleys 17 and conveyor belt 18.

[0025] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalent elements of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A high efficiency cooling device for a twin screw extruder, characterized by: The system includes a water-cooled box (1), with an inlet pipe (2) fixedly connected to the upper part of one end of the water-cooled box (1) and an outlet pipe (3) fixedly connected to the lower part of the other end of the water-cooled box (1). A conveyor belt (4) is provided inside the water-cooled box (1) near the inlet pipe (2). A conveyor belt (5) is installed inside the water-cooled box (1) on the side of the conveyor belt (4). An air-cooled box (7) is fixedly connected to the top of the end of the water-cooled box (1) away from the inlet pipe (2). A conveyor belt (8) is provided inside the air-cooled box (7) extending from the second conveyor belt (5) to the side of the air-cooled box (7). The third conveyor belt (8) is installed inside the air-cooled box (7). A fan (13) is fixedly connected to the top surface of the air-cooled box (7).

2. The high efficient cooling device of a twin-screw extruder according to claim 1, characterized in that: The top of the water-cooled box (1) is provided with a recycling tank (10) on the side near the air-cooled box (7). The water inlet pipe (2) and the water outlet pipe (3) are respectively connected to the water pump and the wastewater tank through water pipes.

3. The high efficiency cooling device of a twin screw extruder according to claim 2, characterized in that: Both the water-cooled box (1) and the air-cooled box (7) have guide plates (11) fixed on their bottom surfaces. The guide plate (11) inside the water-cooled box (1) is set to be inclined downward toward the water outlet pipe (3), and the guide plate (11) inside the air-cooled box (7) is set to be inclined downward toward the recovery tank (10).

4. The high efficient cooling device of a twin-screw extruder according to claim 1, characterized by: Conveyor belts 1 (4), 2 (5) and 3 (8) are symmetrically connected to conveyor rollers (6), and both ends of each conveyor roller (6) are rotatably connected to the inside of the water-cooled box (1) and the air-cooled box (7).

5. The efficient cooling device of a twin-screw extruder according to claim 4, characterized in that: The conveyor rollers (6) at the opposite ends of conveyor belt one (4) and conveyor belt two (5), and at the opposite ends of conveyor belt two (5) and conveyor belt three (8) extend to the outside of the water-cooled box (1) and the air-cooled box (7). A pulley (17) is fixed at one end of the conveyor roller (6) extending to the outside of the water-cooled box (1) and the air-cooled box (7). Adjacent pulleys (17) are connected by a servo motor (16). A servo motor (16) is installed on the outside of one of the pulleys (17). The output end of the servo motor (16) is fixed on the pulley (17).

6. The efficient cooling device of a twin-screw extruder according to claim 1, characterized by: Ventilation windows (14) are provided at the top of the air box (12) and at the top of the air-cooled box (7) below the air box (12), and filters (15) are fixed inside the two ventilation windows (14).

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