Chlorosulfonated polyethylene twin-screw extruder

Abstract

The utility model discloses a chlorosulfonated polyethylene double screw extruder belongs to double screw extruder technical field, including frame, the upper end fixedly connected with extruder cylinder of frame, the upper end of extruder cylinder is provided with feed hopper, the left side of extruder cylinder is provided with transmission system, and the front side of transmission system is provided with controller, the agitating mechanism includes the support plate of fixedly connected on the upper end of feed hopper, the upper end of support plate is installed with motor, the lower end of support plate is rotatably connected with the rotating shaft, and the upper end of rotating shaft penetrates the lower end of support plate and is fixedly connected with the output shaft of motor. The equipment is set up agitating mechanism on the use problem, can fully agitate the material in the feed hopper, to ensure that the material does not occur in the feed hopper and block, can also scrape the material adhered on the inner wall of feed hopper, still set up limit mechanism, can conveniently dismount the scraper, so as to carry out the maintenance operation subsequently.

Description

Technical Field

[0001] This utility model relates to the field of twin-screw extruder technology, and in particular to a chlorosulfonated polyethylene twin-screw extruder. Background Technology

[0002] Chlorosulfonated polyethylene is an important rubber material with wide applications in many industrial fields. In the processing and preparation of chlorosulfonated polyethylene, the twin-screw extruder is one of the key pieces of equipment, and its performance directly affects the quality of the product and the production efficiency.

[0003] Currently, traditional twin-screw extruders are prone to material accumulation and blockage in the feed hopper due to factors such as material characteristics and feed rate. This undoubtedly affects actual production efficiency. At the same time, some materials tend to adhere to the inner wall of the feed hopper, further affecting the stability of the feed. Although some feed hoppers are equipped with components such as scrapers, their loading and unloading operations are complicated, making subsequent maintenance and replacement inconvenient. Therefore, to solve these problems, designing a chlorosulfonated polyethylene twin-screw extruder is something we need to consider. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a chlorosulfonated polyethylene twin-screw extruder. To address usage issues, it is equipped with a stirring mechanism to fully agitate the material in the feed hopper, ensuring that the material does not become clogged. It also scrapes off material adhering to the inner wall of the feed hopper. Furthermore, it is equipped with a limiting mechanism for easy loading and unloading of the scraper blades, facilitating subsequent maintenance.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A chlorosulfonated polyethylene twin-screw extruder includes a frame, an extruder barrel fixedly connected to the upper end of the frame, a feed hopper at the upper end of the extruder barrel, a transmission system on the left side of the extruder barrel, and a controller at the front of the transmission system; an agitation mechanism including a support plate fixedly connected to the upper end of the feed hopper, a motor mounted on the upper end of the support plate, a rotating shaft rotatably connected to the lower end of the support plate, the upper end of the rotating shaft passing through the lower end of the support plate and fixedly connected to the output shaft of the motor, multiple agitators and rotating plates fixedly connected to the rotating shaft, scrapers on both sides of the rotating plates; and two limiting mechanisms, each including a rectangular inner cavity within the rotating plate, a slider that can slide left and right within the rectangular inner cavity, one side of the slider near the rotating shaft being elastically connected to the inner wall of the rectangular inner cavity by two springs, and a rectangular limiting block fixedly connected to the other side of the slider, with a rectangular slot at the top inner surface of the rectangular inner cavity.

[0007] Preferably, an L-shaped connecting block is fixedly connected to the upper end of each of the two scrapers, and a rectangular limiting groove is provided on the vertical part of each of the two L-shaped connecting blocks.

[0008] Preferably, the vertical portions of the two L-shaped connecting blocks each penetrate through the corresponding rectangular slot and are slidably connected to the inner wall of the corresponding rectangular slot.

[0009] Preferably, both rectangular limiting blocks pass through the corresponding rectangular limiting grooves and are slidably connected to the inner wall of the corresponding rectangular limiting grooves.

[0010] Preferably, a rectangular through groove is provided at the bottom of each of the two rectangular cavities, and a control block is fixedly connected to the lower end of each of the two sliders, with the lower end of each control block passing through the corresponding rectangular through groove.

[0011] Preferably, the two agitators located below are both located inside the discharge port below the feed hopper.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] An agitation mechanism is installed, which drives multiple agitators to rotate via a motor. This effectively agitates the material in the feed hopper, improving feeding efficiency. In particular, the agitators at the bottom can specifically agitate the discharge area, thus effectively preventing material blockage. The rotation of the shaft also drives the scraper to scrape off the material adhering to the inner wall of the feed hopper, avoiding material waste. A limit mechanism is also installed, which controls the rectangular limit block to limit the L-shaped connecting block by pulling the control block. This allows for convenient loading and unloading of the scraper, greatly reducing the actual maintenance workload and ensuring the stable operation of the equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a chlorosulfonated polyethylene twin-screw extruder proposed in this utility model;

[0015] Figure 2 for Figure 1 Cross-sectional view of the feed hopper;

[0016] Figure 3 for Figure 2 Partial structural sectional view;

[0017] Figure 4 for Figure 3 Enlarged view of point A;

[0018] Figure 5 This is a schematic diagram of the scraper section.

[0019] In the diagram: 1. Frame, 2. Extruder barrel, 3. Feed hopper, 4. Support plate, 5. Motor, 6. Rotating shaft, 7. Stirring rod, 8. Rotating plate, 9. Scraper, 10. Rectangular inner cavity, 11. Slider, 12. Spring, 13. Rectangular limit block, 14. Rectangular slot, 15. L-shaped connecting block, 16. Rectangular limit groove, 17. Rectangular through groove, 18. Control block, 19. Transmission system, 20. Controller. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-5 A chlorosulfonated polyethylene twin-screw extruder includes a frame 1, an extruder barrel 2 fixedly connected to the upper end of the frame 1, two screws installed inside the extruder barrel 2, and by controlling the rotation of the two screws, the material can be conveyed to the right while being plasticized, mixed and compressed. A feed hopper 3 is installed at the upper end of the extruder barrel 2 for filling the extruder barrel 2 with material. A transmission system 19 is installed on the left side of the extruder barrel 2, which is usually composed of components such as a motor, reducer and coupling, and is responsible for driving the screws to rotate. A controller 20 is installed at the front of the transmission system 19, and the controller 20 is used to control the normal operation of the entire twin-screw extruder.

[0022] The system also includes an agitation mechanism, which includes a support plate 4 fixedly connected to the upper end of the feed hopper 3. A motor 5 is installed on the upper end of the support plate 4, and a rotating shaft 6 is rotatably connected to the lower end of the support plate 4. The upper end of the rotating shaft 6 passes through the lower end of the support plate 4 (a bearing is provided at the passage) and is fixedly connected to the output shaft of the motor 5. Multiple agitating rods 7 and a rotating plate 8 are fixedly connected to the rotating shaft 6. The multiple agitating rods 7 can agitate the material in the feed hopper 3 to ensure feeding efficiency. The two agitating rods 7 located at the bottom are both located in the discharge port below the feed hopper 3 and can agitate the material at the discharge port (where blockage is most likely to occur) to avoid material blockage. Scrapers 9 are provided on both the left and right sides of the rotating plate 8. Both scrapers 9 are in contact with the inner wall of the feed hopper 3 and can scrape off the material adhering to the inner wall of the feed hopper 3.

[0023] Among them, the upper ends of the two scrapers 9 are fixedly connected with L-shaped connecting blocks 15, and the vertical parts of the two L-shaped connecting blocks 15 are provided with rectangular limiting grooves 16. The vertical parts of the two L-shaped connecting blocks 15 pass through the corresponding rectangular slots 14 and are slidably connected to the inner wall of the corresponding rectangular slots 14.

[0024] The system also includes two limiting mechanisms. Each limiting mechanism includes a rectangular inner cavity 10 within the rotating plate 8. A slider 11 that can slide left and right is provided within the rectangular inner cavity 10. The side wall of the slider 11 is in contact with the vertical part of the L-shaped connecting block 15. The side of the slider 11 near the rotating shaft 6 is elastically connected to the inner wall of the rectangular inner cavity 10 by two springs 12. The springs 12 can ensure the stable limiting of the rectangular limiting block 13 on the L-shaped connecting block 15. The other side of the slider 11 is fixedly connected to the rectangular limiting block 13, which passes through the rectangular limiting groove 16 and is slidably connected to the inner wall of the rectangular limiting groove 16. A rectangular slot 14 is provided at the top of the rectangular inner cavity 10, and a rectangular through groove 17 is provided at the bottom of the rectangular inner cavity 10. A control block 18 is fixedly connected to the lower end of the slider 11, and the lower end of the control block 18 passes through the corresponding rectangular through groove 17. By pulling the control block 18, the limiting of the rectangular limiting block 13 on the L-shaped connecting block 15 can be controlled.

[0025] In this utility model, during use, the production material of chlorosulfonated polyethylene is continuously added into the extruder barrel 2 through the feed hopper 3. At the same time, the transmission system 19 is controlled by the controller 20 to drive the two screws in the extruder barrel 2 to rotate. When the two screws rotate, the material can be conveyed to the right, and plasticizing, mixing and compressing operations are performed on the material during the conveying process.

[0026] During the continuous addition of materials, the motor 5 can be started to drive the rotating shaft 6 to rotate, which in turn drives multiple stirring rods 7 to stir the materials in the feed hopper 3, ensuring the smooth falling of the materials and improving the feeding efficiency. At the same time, the two stirring rods 7 located at the bottom can specifically stir the discharge port area at the bottom of the feed hopper 3, focusing on the key positions where blockages are most likely to occur during the material conveying process, thereby effectively preventing the accumulation and blockage of materials. When the rotating shaft 6 rotates, it can also drive the rotating plate 8 to rotate, which in turn drives the two scrapers 9 to rotate to scrape off the materials adhering to the inner wall of the feed hopper 3, so as to avoid the waste of this part of the materials.

[0027] When maintenance is required on the two scrapers 9, first operate the left limiting mechanism by pulling the control block 18 to the right. This causes the slider 11 to slide to the right within the rectangular cavity 10, overcoming the elastic force of the two springs 12. The slider 11 will then cause the rectangular limiting block 13 to slide out of the rectangular limiting groove 16 of the left L-shaped connecting block 15, thus releasing the limitation on the left L-shaped connecting block 15. At this point, the L-shaped connecting block 15 can be pulled upward from the rectangular slot 14, allowing the left scraper 9 to be removed for maintenance. After the maintenance is completed, insert the vertical part of the L-shaped connecting block 15 into the rectangular slot 14 on the left (the control block 18 needs to be pulled to the right in advance before insertion). Then release the control block 18. Under the elastic force of the two springs 12, the slider 11 will drive the rectangular limit block 13 to re-insert into the rectangular limit groove 16 to achieve convenient installation of the scraper 9. Similarly, referring to the above operation, the scraper 9 on the right can be installed, removed and maintained. The whole installation and removal process is relatively convenient and effectively reduces the actual maintenance workload.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A twin-screw extruder for chlorosulfonated polyethylene, characterized in that, include: A frame (1) is fixedly connected to an extruder barrel (2) at its upper end. A feed hopper (3) is provided at the upper end of the extruder barrel (2). A transmission system (19) is provided on the left side of the extruder barrel (2). A controller (20) is provided on the front side of the transmission system (19). The stirring mechanism includes a support plate (4) fixedly connected to the upper end of the feed hopper (3), a motor (5) is installed on the upper end of the support plate (4), a rotating shaft (6) is rotatably connected to the lower end of the support plate (4), the upper end of the rotating shaft (6) passes through the lower end of the support plate (4) and is fixedly connected to the output shaft of the motor (5), a plurality of stirring rods (7) and a rotating plate (8) are fixedly connected on the rotating shaft (6), and scrapers (9) are provided on both the left and right sides of the rotating plate (8); Two limiting mechanisms are provided. The limiting mechanism includes a rectangular inner cavity (10) opened in the rotating plate (8). A slider (11) that can slide left and right is provided in the rectangular inner cavity (10). The side of the slider (11) near the rotating shaft (6) is elastically connected to the inner wall of the rectangular inner cavity (10) by two springs (12). A rectangular limiting block (13) is fixedly connected to the other side of the slider (11). A rectangular slot (14) is opened at the top of the inner cavity (10).

2. The chlorosulfonated polyethylene twin-screw extruder according to claim 1, characterized in that, The upper ends of the two scrapers (9) are fixedly connected to L-shaped connecting blocks (15), and the vertical parts of the two L-shaped connecting blocks (15) are provided with rectangular limiting grooves (16).

3. The chlorosulfonated polyethylene twin-screw extruder according to claim 2, characterized in that, The vertical portions of the two L-shaped connecting blocks (15) pass through the corresponding rectangular slots (14) and are slidably connected to the inner wall of the corresponding rectangular slots (14).

4. A chlorosulfonated polyethylene twin-screw extruder according to claim 2, characterized in that, Both rectangular limiting blocks (13) pass through the corresponding rectangular limiting grooves (16) and are slidably connected to the inner wall of the corresponding rectangular limiting grooves (16).

5. A chlorosulfonated polyethylene twin-screw extruder according to claim 1, characterized in that, The bottom of each of the two rectangular cavities (10) is provided with a rectangular through groove (17), and the lower ends of the two sliders (11) are fixedly connected with control blocks (18), and the lower ends of the two control blocks (18) pass through the corresponding rectangular through grooves (17).

6. A chlorosulfonated polyethylene twin-screw extruder according to claim 1, characterized in that, The two agitators (7) located below are both located in the discharge port below the feed hopper (3).

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