Extruder vacuum quick response device

Abstract

The utility model relates to mechanical design and manufacturing technical field discloses extruder vacuum quick response device, including pipeline, the inside fixed connection of pipeline has fixed cylinder, the inner wall sliding connection of fixed cylinder has connecting rod, the upper surface fixed connection of connecting rod has sensor, the lower surface of connecting rod is pasted with first spring, the inside sliding connection of fixed cylinder of first spring outer wall, the inside of fixed cylinder is equipped with limit slot, the outer wall fixed connection of connecting rod has the clamping post, the inside of fixed cylinder is equipped with the clamping slot, the inner wall of pipeline is provided with filter component. In the utility model, through the cooperation between pipeline, fixed cylinder, connecting rod, sensor, first spring, limit slot, clamping post and clamping slot, the equipment downtime is greatly shortened, the production efficiency is improved, and simultaneously it is convenient for according to the process demand to replace the sensor of different range or type fast, reduces the risk of misoperation, improves equipment adaptability and security.

Description

Technical Field

[0001] This utility model relates to the field of mechanical design and manufacturing technology, and in particular to a rapid response device for vacuuming an extruder. Background Technology

[0002] As the quality requirements for plastic products (such as modified plastics and high-end films) become increasingly stringent, it is essential to thoroughly remove moisture, monomers, and volatiles from the materials through vacuum degassing. However, traditional open vacuum ports are prone to melt backflow when encountering a sudden increase in melt pressure, which can severely clog vacuum lines, contaminate vacuum pumps, and lead to production interruptions and huge maintenance costs. Therefore, a rapid response device for vacuuming extruders is needed.

[0003] The core function of the extruder vacuum rapid response device is to monitor and quickly and automatically adjust the opening and closing status of the vacuum system in real time to prevent material from rushing back from the die head into the vacuum pipeline under abnormal conditions (mainly excessive melt pressure), causing blockage and equipment contamination. In previous technologies, this could easily lead to long time consumption for sensor replacement or maintenance, affecting production continuity and efficiency, and increasing the difficulty of manual operation. Improper operation could easily cause equipment failure or data errors. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a rapid vacuum response device for extruders, which aims to improve the problem of long sensor replacement or maintenance time, affecting production continuity and efficiency, increasing the difficulty of manual operation, and easily causing equipment failure or data error due to improper operation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rapid vacuum response device for an extruder, comprising a pipe, a fixed cylinder fixedly connected inside the pipe, a connecting rod slidably connected to the inner wall of the fixed cylinder, a sensor fixedly connected to the upper surface of the connecting rod, a first spring attached to the lower surface of the connecting rod, the outer wall of the first spring slidably connected to the inside of the fixed cylinder, a limiting groove formed inside the fixed cylinder, the outer wall of the first spring slidably connected to the inner wall of the limiting groove, a locking pin fixedly connected to the outer wall of the connecting rod, the outer wall of the locking pin slidably connected to the inside of the fixed cylinder, a locking groove formed inside the fixed cylinder, the outer wall of the locking pin slidably connected to the inner wall of the locking groove, and a filter assembly provided on the inner wall of the pipe.

[0006] The above technical solution drives the sensor, which in turn drives the connecting rod and the locking pin to dock with the fixed cylinder. The locking pin slides on the inner wall of the slot, and the elastic force of the first spring locks the locking pin into the inner wall of the slot, thus installing and fixing the sensor. This significantly shortens equipment downtime, improves production efficiency, and facilitates the quick replacement of sensors of different ranges or types according to process requirements, reducing the risk of misoperation and improving the adaptability and safety of the equipment.

[0007] Preferably, the filter assembly includes a clip, the outer wall of which is fixedly connected to the inner wall of the pipe, and a filter screen is slidably connected to the outer wall of the clip.

[0008] Preferably, the filter screen has a groove inside, the outer wall of the card block is slidably connected to the inner wall of the groove, and the outer wall of the filter screen is attached to the inner wall of the pipe.

[0009] Preferably, a valve is attached to the outer wall of the pipe, a fixing box is fixedly connected inside the valve, and a connecting column is slidably connected inside the fixing box.

[0010] Preferably, a handle is fixedly connected to one end of the connecting column, and a movable plate is fixedly connected to the other end of the connecting column.

[0011] Preferably, the outer wall of the movable plate is slidably connected to the inner wall of the fixed box, and one end of the telescopic rod is fixedly connected to the outer wall of the movable plate.

[0012] Preferably, the other end of the telescopic rod is fixedly connected to the inner wall of the fixed box, and a second spring is slidably connected to the outer wall of the telescopic rod.

[0013] Preferably, a limiting plate is fixedly connected to the outer wall of the movable plate, and the outer wall of the limiting plate is slidably connected to the inside of the valve and the pipeline.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, through the cooperation between the pipe, fixed cylinder, connecting rod, sensor, first spring, limiting groove, locking post and locking groove, the equipment downtime can be greatly shortened and the production efficiency can be improved. At the same time, it is convenient to quickly replace sensors of different ranges or types according to process requirements, reduce the risk of misoperation, and improve the adaptability and safety of the equipment.

[0016] 2. In this utility model, through the cooperation between the valve, the fixed box, the connecting column, the handle, the moving plate, the telescopic rod, the second spring and the limiting plate, the downtime for maintenance is greatly shortened, the production interruption caused by valve failure is reduced, the efficient operation of the equipment is ensured, the labor cost is reduced, the risk of misoperation is reduced, and the service life of the equipment is extended. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the extruder vacuum rapid response device proposed in this utility model;

[0018] Figure 2 This is a cross-sectional schematic diagram of the internal structure of the fixed cylinder of the extruder vacuum rapid response device proposed in this utility model;

[0019] Figure 3 This is a partial structural diagram of the clamping block of the extruder vacuum rapid response device proposed in this utility model;

[0020] Figure 4 This is a cross-sectional view of the internal structure of the fixing box of the extruder vacuum rapid response device proposed in this utility model.

[0021] Legend:

[0022] 1. Pipe; 2. Fixed cylinder; 3. Connecting rod; 4. Sensor; 5. First spring; 6. Limiting groove; 7. Locking post; 8. Locking slot; 9. Locking block; 10. Filter screen; 11. Slide groove; 12. Valve; 13. Fixed box; 14. Connecting post; 15. Handle; 16. Moving plate; 17. Telescopic rod; 18. Second spring; 19. Limiting plate. Detailed Implementation

[0023] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Example 1, refer to Figure 1 and Figure 2 An embodiment of this utility model provides a rapid vacuum response device for an extruder, comprising a pipe 1, a fixed cylinder 2 fixedly connected inside the pipe 1, a connecting rod 3 slidably connected to the inner wall of the fixed cylinder 2, a sensor 4 fixedly connected to the upper surface of the connecting rod 3, a first spring 5 attached to the lower surface of the connecting rod 3, the outer wall of the first spring 5 slidably connected to the inside of the fixed cylinder 2, a limiting groove 6 opened inside the fixed cylinder 2, the outer wall of the first spring 5 slidably connected to the inner wall of the limiting groove 6, a locking post 7 fixedly connected to the outer wall of the connecting rod 3, the outer wall of the locking post 7 slidably connected to the inside of the fixed cylinder 2, a locking groove 8 opened inside the fixed cylinder 2, the outer wall of the locking post 7 slidably connected to the inner wall of the locking groove 8, and a filter assembly provided on the inner wall of the pipe 1;

[0025] Specifically, the sensor 4 drives the connecting rod 3 and the locking pin 7 to dock with the fixed cylinder 2. The locking pin 7 slides along the inner wall of the slot 8. At the same time, the sliding of the locking pin 7 causes the connecting rod 3 to compress the first spring 5. The limiting groove 6 limits the first spring 5, and the elastic force of the first spring 5 locks the locking pin 7 into the inner wall of the slot 8, thereby installing and fixing the sensor 4. This significantly reduces equipment downtime, improves production efficiency, and facilitates the quick replacement of sensors 4 with different ranges or types according to process requirements, reducing the risk of misoperation and improving equipment adaptability and safety. The sensor 4 quickly feeds back the pressure data in the vacuum system, ensuring stable process parameters and avoiding defects such as bubbles and deformation in the product caused by vacuum fluctuations. At the same time, the data drives the valve 12 to achieve rapid response and identify abnormalities such as leakage and blockage, providing early warning to reduce downtime risks.

[0026] Example 2, refer to Figure 1 and Figure 3 The filter assembly includes a clip 9, the outer wall of which is fixedly connected to the inner wall of the pipe 1, and a filter screen 10 is slidably connected to the outer wall of the clip 9; a groove 11 is provided inside the filter screen 10, the outer wall of the clip 9 is slidably connected to the inner wall of the groove 11, and the outer wall of the filter screen 10 is attached to the inner wall of the pipe 1.

[0027] Specifically, the filter screen 10 removes impurities and volatiles trapped in the melt, preventing the filter screen 10 from becoming clogged and causing a drop in vacuum. The filter screen 10 is then positioned to adhere to the inner wall of the pipe 1, and subsequently engages with the locking block 9. A sliding groove 11 inside the filter screen 10 limits the locking block 9. The filter screen 10 rotates, locking the locking block 9 onto the inner wall of the sliding groove 11, thus installing the filter screen 10 on the inner wall of the pipe 1. This process removes impurities and volatiles trapped in the melt, ensuring a continuous and stable vacuum effect, while also reducing downtime, minimizing manual operation complexity, and extending the overall service life of the equipment.

[0028] Example 3, refer to Figure 1 and Figure 4 A valve 12 is attached to the outer wall of pipe 1. A fixed box 13 is fixedly connected inside the valve 12. A connecting column 14 is slidably connected inside the fixed box 13. A handle 15 is fixedly connected to one end of the connecting column 14, and a movable plate 16 is fixedly connected to the other end of the connecting column 14. The outer wall of the movable plate 16 is slidably connected to the inner wall of the fixed box 13. One end of a telescopic rod 17 is fixedly connected to the outer wall of the movable plate 16. The other end of the telescopic rod 17 is fixedly connected to the inner wall of the fixed box 13. A second spring 18 is slidably connected to the outer wall of the telescopic rod 17. A limit plate 19 is fixedly connected to the outer wall of the movable plate 16. The outer wall of the limit plate 19 is slidably connected inside the valve 12 and pipe 1.

[0029] Specifically, the handle 15 drives the connecting column 14, which in turn drives the moving plate 16 to slide on the inner wall of the fixed box 13. The fixed box 13 limits the movement of the moving plate 16. When the moving plate 16 moves, it drives the telescopic rods 17 on both sides to extend and retract, while simultaneously compressing the second springs 18 on both sides. The telescopic rods 17 limit the second springs 18 to prevent them from shifting. The moving plate 16 drives the limiting plate 19 to slide inside the pipe 1. The elastic force of the second springs 18 engages the limiting plate 19 inside the pipe 1, and the valve 12 is installed on the outer wall of the pipe 1. This significantly shortens downtime for maintenance, reduces production interruptions caused by valve 12 failure, ensures efficient equipment operation, reduces labor costs, reduces the risk of misoperation, and extends equipment life. By quickly opening and closing or adjusting the valve 12, the dynamic requirements of the extrusion process for vacuum are matched in real time, ensuring the degassing effect and molding quality of the product. In case of vacuum abnormalities, such as a sudden pressure increase, the valve can be quickly cut off or depressurized to prevent equipment damage and avoid melt backflow that could block the pipe 1, thus extending the equipment life.

[0030] Working principle: When the device is needed, the handle 15 is driven to slide the connecting column 14 inside the fixed box 13. When the connecting column 14 moves, the moving plate 16 slides on the inner wall of the fixed box 13. When the moving plate 16 moves, the telescopic rod 17 extends and retracts, and at the same time, the second spring 18 is squeezed and compressed, so that the valve 12 is installed on the outer wall of the pipe 1. Then, the moving plate 16 drives the limiting plate 19 to slide inside the pipe 1. The elastic force of the second spring 18 locks the limiting plate 19 inside the pipe 1, thereby installing the valve 12 on the outer wall of the pipe 1. This greatly shortens the downtime for maintenance, reduces production interruptions caused by valve 12 failure, ensures efficient operation of the equipment, reduces labor costs, reduces the risk of misoperation, and extends the service life of the equipment.

[0031] By driving the sensor 4, the connecting rod 3 and the locking pin 7 are connected to the fixed cylinder 2. The locking pin 7 slides on the inner wall of the slot 8, and the connecting rod 3 compresses the first spring 5. The elastic force of the first spring 5 then locks the locking pin 7 into the inner wall of the slot 8, thereby installing and fixing the sensor 4. This can significantly shorten equipment downtime, improve production efficiency, and facilitate the quick replacement of sensors 4 with different ranges or types according to process requirements, reducing the risk of misoperation and improving equipment adaptability and safety.

[0032] The filter screen 10 is driven to adhere to the inner wall of the pipe 1, thereby connecting the filter screen 10 with the clamping block 9. The filter screen 10 is then rotated, causing the clamping block 9 to engage with the inner wall of the slide groove 11, thus installing the filter screen 10 on the inner wall of the pipe 1. The filter screen 10 removes impurities and volatiles trapped in the melt, preventing clogging and ensuring a continuous and stable vacuum effect. This also shortens downtime, reduces manual operation complexity, and extends the overall service life of the equipment. This device not only significantly reduces equipment downtime and improves production efficiency, but also facilitates the rapid replacement of sensors 4 with different ranges or types according to process requirements, reducing the risk of misoperation and improving equipment adaptability and safety. Furthermore, it significantly reduces downtime for maintenance, minimizes production interruptions caused by valve 12 malfunctions, ensures efficient equipment operation, reduces labor costs, minimizes the risk of misoperation, and extends equipment service life.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rapid vacuum response device for an extruder, comprising a pipe (1), characterized in that: A fixed cylinder (2) is fixedly connected inside the pipe (1). A connecting rod (3) is slidably connected to the inner wall of the fixed cylinder (2). A sensor (4) is fixedly connected to the upper surface of the connecting rod (3). A first spring (5) is attached to the lower surface of the connecting rod (3). The outer wall of the first spring (5) is slidably connected to the inside of the fixed cylinder (2). A limiting groove (6) is opened inside the fixed cylinder (2). The outer wall of the first spring (5) is slidably connected to the inner wall of the limiting groove (6). A locking post (7) is fixedly connected to the outer wall of the connecting rod (3). The outer wall of the locking post (7) is slidably connected to the inside of the fixed cylinder (2). A locking groove (8) is opened inside the fixed cylinder (2). The outer wall of the locking post (7) is slidably connected to the inner wall of the locking groove (8). A filter assembly is provided on the inner wall of the pipe (1).

2. The extruder vacuum rapid response device according to claim 1, characterized in that: The filter assembly includes a clip (9), the outer wall of which is fixedly connected to the inner wall of the pipe (1), and a filter screen (10) is slidably connected to the outer wall of the clip (9).

3. The extruder vacuum rapid response device according to claim 2, characterized in that: The filter screen (10) has a groove (11) inside, the outer wall of the card block (9) is slidably connected to the inner wall of the groove (11), and the outer wall of the filter screen (10) is attached to the inner wall of the pipe (1).

4. The extruder vacuum rapid response device according to claim 1, characterized in that: A valve (12) is attached to the outer wall of the pipe (1), and a fixed box (13) is fixedly connected inside the valve (12). A connecting column (14) is slidably connected inside the fixed box (13).

5. The extruder vacuum rapid response device according to claim 4, characterized in that: One end of the connecting post (14) is fixedly connected to a handle (15), and the other end of the connecting post (14) is fixedly connected to a movable plate (16).

6. The extruder vacuum rapid response device according to claim 5, characterized in that: The outer wall of the movable plate (16) is slidably connected to the inner wall of the fixed box (13), and one end of the telescopic rod (17) is fixedly connected to the outer wall of the movable plate (16).

7. The extruder vacuum rapid response device according to claim 6, characterized in that: The other end of the telescopic rod (17) is fixedly connected to the inner wall of the fixed box (13), and the outer wall of the telescopic rod (17) is slidably connected to a second spring (18).

8. The extruder vacuum rapid response device according to claim 7, characterized in that: The outer wall of the movable plate (16) is fixedly connected to the limiting plate (19), and the outer wall of the limiting plate (19) is slidably connected inside the valve (12) and the pipe (1).

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