Dispersing equipment for engineering plastic fiber reinforced material

Abstract

The utility model relates to the technical field of plastic reinforced materials, and discloses engineering plastic fiber reinforced material dispersing equipment which comprises a double-screw extruder body, a feeding bin is arranged on the upper surface of the double-screw extruder body, a feeding hole is formed in the position, corresponding to the feeding bin, of the upper surface of the double-screw extruder body, and the feeding hole is communicated with the feeding bin. The lower end of the feeding bin penetrates through the feeding hole to be communicated with the interior of the double-screw extruder body, a support is fixedly installed on the upper surface of the double-screw extruder body, the feeding bin is slidably connected into the support in a sleeved mode, and the auxiliary discharging mechanism is arranged on the feeding bin. The screw rod and the scraper rotate to drive the screw blade to push materials, then the vibration motor enables the feeding bin to generate high-frequency micro-amplitude vibration, the materials are actively discharged, the bridging phenomenon is reduced, the material discharging efficiency of the feeding bin is improved, and therefore the working efficiency of the dispersing equipment is improved.

Description

A dispersion device for engineering plastic fiber reinforced materials Technical Field

[0001] This utility model relates to the field of plastic reinforcement material technology, specifically to a dispersion device for engineering plastic fiber reinforcement materials. Background Technology

[0002] Engineering plastics are high-performance plastics that can replace metals as engineering structural materials. They combine mechanical properties with functional characteristics and are divided into general-purpose engineering plastics (such as polyamide and polycarbonate) and special engineering plastics (such as polyimide and polyphenylene sulfide). They have advantages such as high strength, resistance to high and low temperatures, corrosion resistance, and good electrical insulation. They are also easy to process. Among the main varieties, nylon is wear-resistant and self-lubricating, polycarbonate is transparent and impact-resistant, and polyoxymethylene has a strength close to that of metal. They are widely used in automobile manufacturing (weight reduction parts), electronics and electrical (insulation parts), aerospace (structural parts), medical devices (biocompatible parts), and other fields, playing a key role in industrial upgrading and lightweighting trends.

[0003] Currently, when using engineering plastics, fiber reinforcement materials can be dispersed into the engineering plastic matrix to ensure the stability of the composite material performance. When dispersing fiber reinforcement materials into the engineering plastic matrix, an extruder is used to disperse the fiber reinforcement materials. When using an extruder to disperse fiber reinforcement materials, the material needs to be added into the feed hopper first, and then into the extruder. When too much material is added to the feed hopper at one time, causing the material to accumulate too densely, it is easy to cause the "bridging" phenomenon, resulting in the material being suspended and not being discharged, which affects the efficiency of the feed hopper. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a dispersion device for engineering plastic fiber reinforced materials. It solves the problem that when using an extruder to disperse fiber reinforced materials, the material needs to be added into the feed hopper first and then into the extruder. However, when too much material is added to the feed hopper at once, causing the material to accumulate too densely, it can easily lead to a "bridging" phenomenon, resulting in the material being suspended and unable to be discharged, thus affecting the efficiency of the feed hopper.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: an engineering plastic fiber reinforced material dispersion device, comprising a twin-screw extruder body, a feed bin provided on the upper surface of the twin-screw extruder body, a feed hole provided on the upper surface of the twin-screw extruder body corresponding to the position of the feed bin, the lower end of the feed bin passing through the feed hole and communicating with the interior of the twin-screw extruder body, a bracket fixedly installed on the upper surface of the twin-screw extruder body, and the feed bin slidably sleeved inside the bracket;

[0008] An auxiliary feeding mechanism is installed on the feeding hopper. The auxiliary feeding mechanism includes an annular plate and a spiral rod. The annular plate is fixedly connected to the outer surface of the feeding hopper. Four round rods are fixedly connected in a ring array on the lower surface of the annular plate. Circular holes are opened on the upper surface of the support corresponding to the positions of the four round rods. The lower ends of the four round rods are slidably inserted into the interior of the four circular holes. A mounting bracket is fixedly installed on the upper end of the inner wall of the feeding hopper. The spiral rod is rotatably installed on the lower surface of the mounting bracket. Springs are sleeved on the outer surfaces of the four round rods. The upper and lower ends of the four springs are in contact with the round rods and the support, respectively.

[0009] Preferably, the auxiliary feeding mechanism further includes a scraper, which is fixedly installed on the upper end of the screw rod, and both the front and rear ends of the scraper are in contact with the inner wall of the feeding hopper.

[0010] Preferably, a drive motor is fixedly mounted on the upper surface of the mounting bracket, and the output end of the drive motor rotates through to the lower surface of the mounting bracket. The drive motor is fixedly connected to the screw rod.

[0011] Preferably, a vibration motor is fixedly installed on both the left and right surfaces of the feeding hopper.

[0012] Preferably, a limit plate is fixedly installed at the lower end of each of the four round rods.

[0013] Preferably, connecting pipes are fixedly installed on both the front and rear surfaces of the twin-screw extruder body, and a connecting plate is fixedly installed at the discharge port on the right end of the twin-screw extruder body.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a dispersion device for engineering plastic fiber reinforced materials, which has the following beneficial effects:

[0016] 1. The plastic fiber reinforced material dispersion equipment of this project uses the coordinated action of a screw rod and a vibrating motor to make the rotation of the screw rod and scraper drive the screw blades to push the material. The vibrating motor then causes the feed hopper to generate high-frequency micro-amplitude vibration, actively discharging the material, reducing the occurrence of "bridging" phenomenon, improving the material discharge efficiency of the feed hopper, and thus improving the working efficiency of the dispersion equipment. Attached Figure Description

[0017] Figure 1 is a top view of the overall structure of the engineering plastic fiber reinforced material dispersion equipment of this utility model;

[0018] Figure 2 is a schematic diagram of the internal cross-sectional front view of the engineering plastic fiber reinforced material dispersion equipment of this utility model;

[0019] Figure 3 is a magnified structural diagram of point A in Figure 2;

[0020] Figure 4 is a schematic diagram of the internal cross-sectional side view of the feed hopper of this utility model.

[0021] In the diagram: 1. Twin-screw extruder body; 2. Feed hopper; 3. Feed port; 4. Support; 5. Annular plate; 6. Screw; 7. Round rod; 8. Circular hole; 9. Mounting frame; 10. Spring; 11. Scraper; 12. Drive motor; 13. Vibration motor; 14. Limiting plate; 15. Connecting pipe; 16. Connecting plate. Detailed Implementation

[0022] 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.

[0023] Please refer to Figures 1-4. This utility model provides a new technical solution: an engineering plastic fiber reinforced material dispersion device, including a twin-screw extruder body 1, a feed bin 2 is provided on the upper surface of the twin-screw extruder body 1, a feed hole 3 is opened on the upper surface of the twin-screw extruder body 1 corresponding to the position of the feed bin 2, the lower end of the feed bin 2 passes through the feed hole 3 and communicates with the interior of the twin-screw extruder body 1, a bracket 4 is fixedly installed on the upper surface of the twin-screw extruder body 1, and the feed bin 2 is slidably sleeved inside the bracket 4;

[0024] An auxiliary feeding mechanism is installed on the feeding hopper 2. The auxiliary feeding mechanism includes an annular plate 5 and a spiral rod 6. The annular plate 5 is fixedly connected to the outer surface of the feeding hopper 2. Four round rods 7 are fixedly connected in a ring array on the lower surface of the annular plate 5. Circular holes 8 are opened on the upper surface of the support 4 corresponding to the positions of the four round rods 7. The lower ends of the four round rods 7 are slidably inserted into the interior of the four circular holes 8. A mounting frame 9 is fixedly installed on the upper end of the inner wall of the feeding hopper 2. The spiral rod 6 is rotatably installed on the lower surface of the mounting frame 9. Springs 10 are sleeved on the outer surface of the four round rods 7. The upper and lower ends of the four springs 10 are in contact with the round rods 7 and the support 4, respectively.

[0025] Furthermore, the auxiliary feeding mechanism also includes a scraper 11, which is fixedly installed on the upper end of the screw rod 6, and both the front and rear ends of the scraper 11 are in contact with the inner wall of the feeding bin 2.

[0026] Furthermore, through the coordinated action of the screw rod 6 and the vibrating motor 13, the rotation of the screw rod 6 and the scraper 11 drives the screw blades to push the material, and the vibrating motor 13 causes the feeding hopper to generate high-frequency micro-amplitude vibration, actively discharging the material, reducing the occurrence of "bridging" phenomenon, improving the material discharge efficiency of the feeding hopper 2, and thus improving the working efficiency of the dispersing equipment.

[0027] Furthermore, a drive motor 12 is fixedly mounted on the upper surface of the mounting bracket 9, and the output end of the drive motor 12 rotates through to the lower surface of the mounting bracket 9. The drive motor 12 is fixedly connected to the screw rod 6.

[0028] Furthermore, vibration motors 13 are fixedly installed on both the left and right surfaces of the feed hopper 2.

[0029] Furthermore, limit plates 14 are fixedly installed at the lower ends of the four round rods 7.

[0030] Furthermore, connecting pipes 15 are fixedly installed on both the front and rear surfaces of the twin-screw extruder body 1, and a connecting plate 16 is fixedly installed at the discharge port on the right end of the twin-screw extruder body 1.

[0031] Furthermore, when using this dispersion equipment to disperse engineering plastics and fiber-reinforced materials, the engineering plastic granules and fiber-reinforced materials are added from the top of the feed hopper 2. The drive motor 12 starts, causing the screw 6 to rotate and push the material downwards to the feed hole 3 of the twin-screw extruder body 1. The screw 6 actively conveys the material entering the feed hopper 2. Simultaneously, the scraper 11 at the upper end of the screw 6 rotates with the screw 6, scraping against the inner wall of the feed hopper 2 to prevent material from adhering to the hopper wall and ensure uniform feeding. At the same time as feeding, two vibration motors 13 start, causing the feed hopper 2 to vibrate up and down along the circular hole 8 of the support 4. Spring 10 is used to assist vibration, so that the vibration of feed hopper 2 can destroy the static friction between material particles, enhance fluidity, and, together with the pushing of the spiral blades, further break up material agglomeration, so that the material falls more smoothly into the feed port of the twin-screw extruder. The material enters the interior of the twin-screw extruder body 1 through feed hole 3. The two screws generate shear force through meshing rotation, melting and mixing the fiber and plastic. Connecting pipe 15 is connected to air heater, and hot air is introduced into the heating box around the twin screws to maintain the melting temperature and ensure the fluidity of the material. The uniformly mixed fiber-reinforced plastic melt is pushed by the twin screws to the right end discharge port, and sent out through the conveying pipe connected by connecting plate 16 for subsequent operations.

[0032] Structural Description: Twin-screw extruder body 1: The core of the equipment, which generates shearing force through the rotation of two screws, melts and mixes engineering plastics and fiber-reinforced materials, and pushes them to the discharge port;

[0033] Feed hopper 2: Used to add engineering plastics and fiber-reinforced materials to be processed. Its lower end is connected to the twin-screw extruder body 1, providing an entry channel for the materials.

[0034] Feed hole 3: It is opened on the body 1 of the twin screw extruder and serves as a channel connecting the feed bin 2 and the inside of the twin screw extruder, so that the material can smoothly enter the extruder;

[0035] Support 4: Fixedly installed on the upper surface of the twin-screw extruder body 1 to provide support for the feed hopper 2, allowing it to move within a certain range;

[0036] Annular plate 5: Fixed on the outer surface of the feed hopper 2, connected to the round rod 7, assisting the feed hopper 2 to slide within the bracket 4, and simultaneously bearing the spring 10 to participate in vibration buffering;

[0037] Screw 6: Rotates under the drive of drive motor 12. It has a spiral blade at its lower end. The spiral blade pushes the material to prevent the material from accumulating at the bottom of the feed hopper 2 and assists in feeding.

[0038] Round rod 7: There are four in total. They are connected to the annular plate 5 and the lower end is inserted into the round hole 8 of the bracket 4. They serve as a guide to ensure that the feed hopper 2 does not deviate when it vibrates up and down. They work in conjunction with the spring 10.

[0039] Circular holes 8: There are four in total, which are opened on the bracket 4 and cooperate with the circular rod 7 to provide a track for the sliding of the feed bin 2, so that the feed bin 2 can move stably within the bracket 4;

[0040] Mounting bracket 9: Fixed to the upper end of the inner wall of the feed hopper 2, used to install the screw rod 6 and the drive motor 12, providing them with support and a fixed position;

[0041] Spring 10: There are four in total. They are fitted onto the round rod 7, with the upper and lower ends contacting the round rod 7 and the bracket 4 respectively, to assist the vibration of the feed hopper 2.

[0042] Scraper 11: Fixed to the upper end of the screw rod 6, it rotates with the screw rod 6 and closely adheres to the inner wall of the feed hopper 2 to prevent excessive material from adhering to the hopper wall and assist in material discharge;

[0043] Drive motor 12: mounted on mounting bracket 9, drives screw rod 6 to rotate, provides power to screw rod 6, and realizes the feeding and pushing of materials in feed hopper 2;

[0044] Vibration motor 13: There are two in total, which are installed on the left and right surfaces of the feed hopper 2. When working, the feed hopper 2 vibrates to enhance the material flowability and help the material enter the twin-screw extruder smoothly.

[0045] Limiting plates 14: There are four in total, which are fixed to the lower end of the round rod 7 to prevent the round rod 7 from sliding out of the round hole 8 of the bracket 4 and to ensure that the feed hopper 2 slides within the specified range;

[0046] Connecting pipe 15: There are two in total, which are installed on the front and rear surfaces of the twin-screw extruder body 1 and connected to the air heater. Hot air is introduced into the heating box near the twin-screw working space to heat and melt the material. The air heater is existing technology, and the specific model is ZR-JRQ-20KW.

[0047] Connecting plate 16: Installed at the discharge port on the right end of the twin-screw extruder body 1, it is used to connect to an external conveying pipe to transport the processed plastic to subsequent processing equipment.

[0048] 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 dispersion device for engineering plastic fiber reinforced materials, comprising a twin-screw extruder body (1), a feed bin (2) provided on the upper surface of the twin-screw extruder body (1), a feed hole (3) provided on the upper surface of the twin-screw extruder body (1) corresponding to the position of the feed bin (2), the lower end of the feed bin (2) passing through the feed hole (3) and communicating with the interior of the twin-screw extruder body (1), characterized in that: The upper surface of the twin-screw extruder body (1) is fixedly mounted with a bracket (4), and the feed hopper (2) is slidably sleeved inside the bracket (4); the auxiliary feeding mechanism is set on the feed hopper (2), and the auxiliary feeding mechanism includes an annular plate (5) and a screw rod (6). The annular plate (5) is fixedly connected to the outer surface of the feed hopper (2), and the lower surface of the annular plate (5) is fixedly connected with four round rods (7) in an annular array. The upper surface of the bracket (4) is provided with circular holes (8) corresponding to the positions of the four round rods (7). The lower ends of the four round rods (7) are slidably inserted into the interior of the four circular holes (8). The upper end of the inner wall of the feed hopper (2) is fixedly mounted with a mounting frame (9), and the screw rod (6) is rotatably mounted on the lower surface of the mounting frame (9). The outer surfaces of the four round rods (7) are all sleeved with springs (10), and the upper and lower ends of the four springs (10) are in contact with the round rods (7) and the bracket (4) respectively.

2. The engineering plastic fiber reinforced material dispersion equipment according to claim 1, characterized in that: The auxiliary feeding mechanism also includes a scraper (11), which is fixedly installed on the upper end of the screw rod (6). Both the front and rear ends of the scraper (11) are in contact with the inner wall of the feeding bin (2).

3. The engineering plastic fiber reinforced material dispersion equipment according to claim 1, characterized in that: A drive motor (12) is fixedly mounted on the upper surface of the mounting bracket (9). The output end of the drive motor (12) rotates through to the lower surface of the mounting bracket (9). The drive motor (12) is fixedly connected to the screw rod (6).

4. The engineering plastic fiber reinforced material dispersion equipment according to claim 1, characterized in that: Vibration motors (13) are fixedly installed on both the left and right surfaces of the feed hopper (2).

5. The engineering plastic fiber reinforced material dispersion equipment according to claim 1, characterized in that: Limiting plates (14) are fixedly installed at the lower ends of the four circular rods (7).

6. The engineering plastic fiber reinforced material dispersion equipment according to claim 1, characterized in that: Connecting pipes (15) are fixedly installed on both the front and rear surfaces of the twin-screw extruder body (1), and a connecting plate (16) is fixedly installed at the discharge port on the right end of the twin-screw extruder body (1).

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