Ablation-resistant phenolic resin prepreg production device

Abstract

The utility model discloses an ablation-resistant phenolic resin prepreg production device, and belongs to the technical field of prepreg production. In order to solve the problem that an existing product is complex in structure, the following technical scheme is provided, the device comprises a base, a U-shaped frame is fixedly connected to the upper end of the base, a processing barrel is arranged in the center of the U-shaped frame, the U-shaped frame and the processing barrel are connected through a moving mechanism, a storage barrel is arranged at the upper end of the U-shaped frame, and a moving mechanism is arranged in the storage barrel. According to the device disclosed by the utility model, by arranging the movable mechanism, an anti-ablation auxiliary agent can be quantitatively added into the hot-melt phenolic resin in batches, so that the influence on the mixing efficiency caused by adding a large amount of anti-ablation auxiliary agent at one time is avoided, the mixing efficiency of the device is improved to a great extent, and the production efficiency of prepreg is ensured; the processing barrel filled with various raw materials can be rotated and moved up and down, and the raw materials in the processing barrel can be quickly shaken and mixed, so that the mixing efficiency of the device is further improved.

Description

Technical Field

[0001] This utility model relates to the field of prepreg production technology, specifically to a device for producing ablation-resistant phenolic resin prepreg. Background Technology

[0002] Phenolic resin prepreg is an important intermediate in composite materials, possessing excellent mechanical properties, thermal stability, and insulation. It is a resin-based / reinforcing material assembly made by impregnating continuous fibers, fabrics, or chopped fibers with phenolic resin. It is widely used in aerospace, automotive, and electronics industries. Its preparation process includes resin synthesis, impregnation treatment, and drying. Phenolic resin is typically produced by the polycondensation of phenol and formaldehyde under the action of a catalyst. Prepregs can be prepared via a wet process (solvent impregnation) or a dry process (hot-melt process). The production process includes resin melting and mixing of additives. During mixing, equipment is generally used to mix the molten hot-melt phenolic resin with anti-ablation additives to ensure production efficiency.

[0003] In existing mixing devices, a sufficient amount of anti-ablation additive is usually added to the hot-melt phenolic resin at once before stirring and mixing. Adding a large amount of anti-ablation additive at once will affect the stirring and mixing efficiency, indirectly reducing the mixing efficiency of the device.

[0004] Therefore, those skilled in the art have provided an apparatus for producing ablation-resistant phenolic resin prepreg to solve the problems mentioned in the background art. Utility Model Content

[0005] To overcome the aforementioned deficiencies of the prior art, embodiments of this utility model provide an ablation-resistant phenolic resin prepreg production apparatus. By setting up a movable mechanism, an ablation-resistant additive can be added to the hot-melt phenolic resin in batches and in quantitative quantities, avoiding the impact of adding a large amount of the ablation-resistant additive at once on the mixing efficiency. This greatly improves the mixing efficiency of the apparatus and ensures the production efficiency of the prepreg. Secondly, by setting up a moving mechanism, the processing cylinder containing various raw materials can be rotated and moved up and down, and the raw materials inside can be quickly shaken and mixed, further improving the mixing efficiency of the apparatus, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A device for producing ablation-resistant phenolic resin prepreg includes a base, a U-shaped frame fixedly connected to the upper end of the base, a processing cylinder disposed at the center of the U-shaped frame and connected to it by a moving mechanism, a storage cylinder disposed at the upper end of the U-shaped frame, and a movable mechanism disposed inside the storage cylinder. The movable mechanism includes a rotating column rotatably connected to the inner wall of the lower end of the storage cylinder, a plurality of second stirring elements fixedly connected to the outer wall of the rotating column, a moving column passing through and slidably connected to the lower end of the storage cylinder, the moving column passing through the U-shaped frame and extending into the interior of the rotating column, a slider fixedly connected to the outer wall of the moving column, and a spiral groove adapted to the slider being formed on the inner wall of the rotating column.

[0008] As a further embodiment of this utility model, the movable mechanism further includes a first notch at the lower end of the storage cylinder, a second notch on the outer wall of the moving column, and a drop outlet at the lower end of the moving column.

[0009] As a further embodiment of this utility model, a spring shaft is fixedly connected to the upper end of the processing cylinder, and a sealing plate is fixedly connected to the movable part of the spring shaft, with the sealing plate located below the moving column.

[0010] As a further embodiment of this utility model, the moving mechanism includes a telescopic rod rotatably connected to a U-shaped frame, the lower end of the telescopic rod being fixedly connected to the processing cylinder, a drive motor being provided at the upper end of the U-shaped frame, the output shaft of the drive motor being connected to the telescopic rod, a sleeve being rotatably connected at the lower end of the U-shaped frame, the sleeve being sleeved on the telescopic rod, and a plurality of first stirring components being fixedly connected to the outer wall of the sleeve.

[0011] As a further embodiment of this utility model, a movable block is connected to the outer wall of the telescopic rod, and a spiral groove is also provided on the inner wall of the sleeve column, with the movable block and the spiral groove being adapted to each other.

[0012] As a further embodiment of this utility model, the upper end of the processing cylinder is provided with a feed inlet, the lower end of the processing cylinder is provided with a discharge outlet, and the lower end of the base is fixedly connected with a plurality of support columns, which are used to support the device.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By setting up a moving mechanism, anti-ablation additives can be added to the hot-melt phenolic resin in batches and in quantitative quantities, avoiding the impact of adding a large amount of anti-ablation additives at once on the mixing efficiency. This greatly improves the mixing efficiency of the device and ensures the production efficiency of the prepreg. Secondly, by setting up a moving mechanism, the processing cylinder containing multiple raw materials can be rotated and moved up and down to quickly shake and mix the raw materials inside, further improving the mixing efficiency of the device. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a production device for ablation-resistant phenolic resin prepreg.

[0016] Figure 2 for Figure 1 Partial cross-sectional structural schematic diagram;

[0017] Figure 3 for Figure 2 A magnified structural diagram at point A;

[0018] Figure 4 for Figure 1 A schematic diagram of the three-dimensional structure viewed from below.

[0019] In the diagram: 1. Base; 2. U-shaped frame; 3. Processing cylinder; 4. Inlet; 5. Outlet; 6. Drive motor; 7. Telescopic rod; 8. Sleeve column; 9. First stirring component; 10. Storage cylinder; 11. Rotating column; 12. Second stirring component; 13. Moving column; 14. Sliding block; 15. First notch; 16. Second notch; 17. Drop outlet; 18. Spring shaft; 19. Sealing plate; 20. Support column. Detailed Implementation

[0020] Please see Figures 1-4 In this embodiment of the present invention, a device for producing ablation-resistant phenolic resin prepreg includes a base 1. A U-shaped frame 2 is fixedly connected to the upper end of the base 1. A processing cylinder 3 is arranged inside the U-shaped frame 2. An inlet 4 is opened at the upper end of the processing cylinder 3, and an outlet 5 is opened at the lower end of the processing cylinder 3. Molten hot-melt phenolic resin can be added into the interior of the processing cylinder 3 through the inlet 4, and mixed with an anti-ablation additive inside the processing cylinder 3. After mixing, it can be taken out from the outlet 5 for subsequent processing. A plurality of support columns 20 are fixedly connected to the lower end of the base 1. The support columns 20 are used to support and stabilize the entire device.

[0021] A telescopic rod 7 is fixedly connected inside the processing cylinder 3. The telescopic rod 7 passes through the processing cylinder 3 and is rotatably connected to the U-shaped frame 2. A drive motor 6 is installed at the upper end of the U-shaped frame 2. The output shaft of the drive motor 6 passes through the interior of the U-shaped frame 2 and is connected to the telescopic rod 7. When the drive motor 6 is working, it can drive the processing cylinder 3 to rotate through the telescopic rod 7. The drive motor 6 is a bidirectional motor, which can rotate the processing cylinder 3 in two directions, thus accelerating the mixing efficiency of various raw materials inside. A sleeve 8 is fixedly connected to the lower end of the U-shaped frame 2. The sleeve 8 passes through the processing cylinder 3. Inside, a first stirring element 9 is fixedly connected to the outer wall. A sleeve 8 is fitted onto a telescopic rod 7. A moving block is provided on the outer wall of the telescopic rod 7. A spiral groove adapted to the moving block is opened on the inner wall of the sleeve 8. When the telescopic rod 7 rotates under the action of the drive motor 6, the telescopic rod 7 will retract under the limitation of the moving block and the spiral groove, thereby realizing the up and down movement of the processing cylinder 3. During the up and down movement of the processing cylinder 3, the raw materials inside come into contact with the first stirring element 9, thereby realizing the stirring and mixing of the raw materials inside, and further accelerating the mixing efficiency.

[0022] The upper end of the U-shaped frame 2 is provided with a storage cylinder 10. The inside of the storage cylinder 10 is used to place the anti-ablation agent. A rotating column 11 is rotatably connected inside the storage cylinder 10. Multiple second stirring elements 12 are fixedly connected to the outer wall of the rotating column 11. The rotating column 11 drives the second stirring elements 12 to rotate, which can realize the stirring of the anti-ablation agent and prevent it from agglomerating and affecting the subsequent mixing efficiency. A movable column 13 is slidably connected through the upper part of the storage cylinder 10. The movable column 13 penetrates into the interior of the rotating column 11. A slider 14 is fixedly connected to the outer wall of the movable column 13. A spiral groove adapted to the slider 14 is opened on the inner wall of the rotating column 11. When the rotating column 11 moves up and down, under the limitation of the slider 14 and the spiral groove, it will drive the rotating column 11 to rotate, thereby realizing the rotation of the second stirring elements 12 and realizing the stirring of the anti-ablation agent.

[0023] The storage cylinder 10 has a first notch 15 at its lower end and a second notch 16 on its moving column 13. When the moving column 13 is pushed to the top by the processing cylinder 3, the first notch 15 and the second notch 16 are connected. The anti-ablation agent inside the storage cylinder 10 will pass through the first notch 15 and the second notch 16 into the moving column 13 and be discharged through the drop outlet 17. At this time, the lower end of the moving column 13 pushes open the sealing plate 19 and enters the interior of the processing cylinder 3, so that the anti-ablation agent can be added into the interior of the processing cylinder 3 for subsequent mixing. The sealing plate 19 and the processing cylinder 3 are connected by a spring shaft 18. When the sealing plate 19 is not squeezed by the moving column 13, the sealing plate 19 is always in a horizontal position under the action of the spring shaft 18.

[0024] The working principle of this utility model is as follows: When the device is needed to mix raw materials during the prepreg production process, molten hot-melt phenolic resin is first added into the processing cylinder 3 through the feed inlet 4. At this time, the drive motor 6 starts to work. When the drive motor 6 works, it drives the processing cylinder 3 to rotate through the telescopic rod 7, realizing the shaking and mixing of the hot-melt phenolic resin inside. When the telescopic rod 7 moves inside the sleeve 8, under the limitation of the moving block on the surface of the telescopic rod 7 and the spiral groove on the inner wall of the sleeve 8, the processing cylinder 3 starts to move upward while rotating. At this time, the telescopic rod 7 begins to shorten, which will not affect the movement of the processing cylinder 3. The drive motor 6 is a bidirectional motor, which can realize the bidirectional rotation and up and down movement of the processing cylinder 3, improving the shaking and mixing effect of the hot-melt phenolic resin. As the processing cylinder 3 moves, the hot-melt phenolic resin inside it comes into contact with the first stirring element 9, and the second stirring element 12 can stir the hot-melt phenolic resin, further accelerating the mixing efficiency. When the processing cylinder 3 moves upward, it will push The moving column 13 moves upward. At this time, under the limit of the slider 14 and the matching spiral groove, it will push the rotating column 11 to rotate inside the storage cylinder 10. When the rotating column 11 rotates, it will drive the second stirring element 12 to rotate, thereby stirring the internal anti-ablation additive and preventing it from agglomerating, which would affect the subsequent mixing efficiency and ensure the mixing efficiency. When the moving column 13 moves to the top, the first notch 15 and the second notch 16 are connected, and the anti-ablation additive inside the storage cylinder 10 will enter the interior of the moving column 13. At this time, the lower end of the moving column 13 pushes open the sealing plate 19 and enters the interior of the processing cylinder 3. At this time, the anti-ablation additive will enter the interior of the processing cylinder 3 through the drop port 17 and mix with the hot melt phenolic resin. When the processing cylinder 3 moves to the top, it will stay for a period of time to ensure that a sufficient amount of anti-ablation additive enters before moving downward. This achieves intermittent addition of the anti-ablation additive, which can avoid the impact of adding too much anti-ablation additive at one time on the mixing efficiency and greatly ensure the mixing efficiency of the device.

[0025] 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. An apparatus for producing ablation-resistant phenolic resin prepreg, comprising a base (1), characterized in that: A U-shaped frame (2) is fixedly connected to the upper end of the base (1). A processing cylinder (3) is set at the center of the U-shaped frame (2), and the two are connected by a moving mechanism. A storage cylinder (10) is set at the upper end of the U-shaped frame (2). A movable mechanism is set inside the storage cylinder (10). The movable mechanism includes a rotating column (11) rotatably connected to the inner wall of the lower end of the storage cylinder (10). A plurality of second stirring components (12) are fixedly connected to the outer wall of the rotating column (11). A moving column (13) is slidably connected through the lower end of the storage cylinder (10). The moving column (13) passes through the U-shaped frame (2) and extends into the interior of the rotating column (11). A slider (14) is fixedly connected to the outer wall of the moving column (13). A spiral groove adapted to the slider (14) is opened on the inner wall of the rotating column (11).

2. The apparatus for producing ablation-resistant phenolic resin prepreg according to claim 1, characterized in that, The moving mechanism also includes a first notch (15) at the lower end of the storage cylinder (10), a second notch (16) on the outer wall of the moving column (13), and a drop hole (17) at the lower end of the moving column (13).

3. The apparatus for producing ablation-resistant phenolic resin prepreg according to claim 2, characterized in that, A spring shaft (18) is fixedly connected to the upper end of the processing cylinder (3), and a sealing plate (19) is fixedly connected to the movable part of the spring shaft (18). The sealing plate (19) is located below the moving column (13).

4. The apparatus for producing ablation-resistant phenolic resin prepreg according to claim 1, characterized in that, The moving mechanism includes a telescopic rod (7) rotatably connected to a U-shaped frame (2), the lower end of which is fixedly connected to a processing cylinder (3), a drive motor (6) is provided at the upper end of the U-shaped frame (2), the output shaft of which is connected to the telescopic rod (7), a sleeve (8) is rotatably connected at the lower end of the U-shaped frame (2), the sleeve (8) is sleeved on the telescopic rod (7), and a plurality of first stirring components (9) are fixedly connected to the outer wall of the sleeve (8).

5. The apparatus for producing ablation-resistant phenolic resin prepreg according to claim 4, characterized in that, A movable block is connected to the outer wall of the telescopic rod (7), and a spiral groove is also provided on the inner wall of the sleeve (8). The movable block is adapted to the spiral groove.

6. The apparatus for producing ablation-resistant phenolic resin prepreg according to claim 1, characterized in that, The upper end of the processing cylinder (3) is provided with a feed inlet (4), the lower end of the processing cylinder (3) is provided with a discharge outlet (5), and the lower end of the base (1) is fixedly connected with a plurality of support columns (20), which are used to support the device.

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