Extruder for short fiber processing

Abstract

The utility model discloses an extruding machine for short fiber processing, including base, the base top is installed with screw extruder, the screw extruder one end top is provided with the feed port, the screw extruder other end is provided with the discharge gate, the feed port of screw extruder is provided with the material box just above, the material box bottom opening is fixedly connected with the feeding box. The utility model discloses through setting up two parallel broken material rollers in the material box, can carry out the effective chopping treatment to short fiber raw material, makes the raw material before entering screw extruder to get the full breakage and dispersion, and this pre -treatment mode helps to improve the efficiency and finished product quality of subsequent extrusion forming, simultaneously, the material box top opening is provided with sealing cover plate and sealing washer, and this design effectively prevents the leakage of short fiber raw material in the chopping process, which not only reduces the waste of raw materials, but also reduces the pollution to the production environment, ensures the cleanness and safety of the production process.

Description

Technical Field

[0001] This utility model relates to the field of fiber processing technology, specifically to an extruder for short fiber processing. Background Technology

[0002] As a key basic material in industries such as textiles, nonwovens, and composite materials, the production process of staple fibers covers core steps including raw material mixing, melt heating, extrusion molding, and subsequent processing. Among these, the extruder is mainly responsible for plasticizing the uniformly mixed raw materials through heating and extrusion, and then extruding them through a die into staple fibers of specific shapes and sizes.

[0003] The patent announcement number CN218989500U discloses a screw extruder for short fiber processing that facilitates feeding. This screw extruder for short fiber processing uses a vibrating screen plate set at the top of the ring frame to vibrate and disperse the short fibers before feeding, breaking up the short fiber material that is gathered together during feeding. The material then falls into the inside of the ring frame through the strip-shaped through holes on the surface of the vibrating screen plate, and then slides into the feed cylinder on the buffer plate. After feeding, the extruder can automatically vibrate and screen, reducing the amount of manual feeding. Finally, the material is discharged from the outlet by the rotation of the screw.

[0004] While the aforementioned screw extruder for short fiber processing, designed for easy feeding, has the advantage of a vibrating screen plate at the top of the ring frame to disperse the short fiber material, it still has some shortcomings that warrant further optimization and improvement. For example, the vibrating screen plate at the top of the ring frame is designed to improve feeding efficiency and reduce clogging. However, because there is no retaining structure at the top of the ring frame, the short fiber material easily spills outwards during the vibration dispersion process. This not only leads to raw material waste but may also pollute the production environment, increasing the difficulty and cost of cleanup.

[0005] Therefore, it is necessary to invent an extruder for short fiber processing to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide an extruder for short fiber processing to solve the problems mentioned above.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an extruder for short fiber processing, comprising a base, a screw extruder mounted on the top of the base, a feed inlet at one end of the screw extruder, a discharge outlet at the other end of the screw extruder, a material box positioned directly above the feed inlet of the screw extruder, a feeding box fixedly connected to the bottom opening of the material box, the bottom opening of the feeding box communicating with the feed inlet of the screw extruder, two parallel crushing rollers rotatably connected inside the material box, a No. 1 motor mounted on the left side of the material box, a gear mounted on one end of each of the two crushing rollers, the two gears meshing together, the other end of one of the crushing rollers being drively connected to the output shaft of the No. 1 motor, a controller mounted on the front of the feeding box, the No. 1 motor being electrically connected to the controller, and a sealing cover hinged to the top opening of the material box.

[0008] The combination of a motor and two gears drives two crushing rollers to work, enabling effective crushing of short fiber raw materials.

[0009] Preferably, guide slides are installed on both sides of the inner wall of the material box, and both guide slides are obliquely downward toward the junction of the two crushing rollers.

[0010] By installing guide slides on both sides of the inner wall of the material box and setting them obliquely downwards toward the junction of the crushing rollers, the short fiber raw materials are effectively guided to be shredded.

[0011] Preferably, each of the four corners of the bottom of the material box is fixedly connected to a support column, and the bottom of each of the four support columns is fixedly connected to the top of the base.

[0012] The bottom of the material box is fixedly connected to the base by support columns, which enhances the structural stability of the material box.

[0013] Preferably, a sealing gasket is installed on the bottom edge of the sealing cover, and the sealing gasket is made of rubber material.

[0014] The sealing cover and gasket at the top opening of the material box effectively prevent the leakage of short fiber raw materials during the chopping process, reduce material waste, and lower the pollution to the production environment.

[0015] Preferably, the feed box is rotatably connected to a rotating shaft, and a plurality of feeding flaps arranged in a circular array are fixedly connected to the surface of the rotating shaft, and the gap between two adjacent feeding flaps matches the bottom opening of the feed box.

[0016] Preferably, a second motor is installed on the back of the feeding box, one end of the rotating shaft extends to the outside of the feeding box and is connected to the output shaft of the second motor for transmission, and the second motor is electrically connected to the controller.

[0017] The feeding flap inside the feed box can be driven by motor No. 2, thereby precisely controlling the feeding amount and ensuring that the short fiber raw material enters the screw extruder evenly and stably, improving the stability and controllability of the feeding process.

[0018] Preferably, a gear reducer is installed at one end of the top of the base, and the output shaft of the gear reducer is connected to one end of the screw of the screw extruder.

[0019] The reduction in speed by the gear reducer lowers the screw's rotational speed and increases its torque output, which helps to better extrude and plasticize short fiber raw materials.

[0020] Preferably, a No. 3 motor is mounted on the surface of the gear reducer, the input shaft of the gear reducer is connected to the output shaft of the No. 3 motor, and the No. 3 motor is electrically connected to the controller.

[0021] The screw speed of the screw extruder is controlled by rotating the input shaft of the gear reducer driven by motor No. 3, thus achieving precise control of the extrusion process.

[0022] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0023] 1. By setting two parallel crushing rollers inside the material box, the short fiber raw materials can be effectively crushed, so that the raw materials are fully crushed and dispersed before entering the screw extruder. This pretreatment method helps to improve the efficiency of subsequent extrusion molding and the quality of finished products. At the same time, a sealing cover and sealing gasket are set at the top opening of the material box. This design effectively prevents the leakage of short fiber raw materials during the crushing process. This not only reduces the waste of raw materials, but also reduces the pollution to the production environment, ensuring the cleanliness and safety of the production process.

[0024] 2. The feed box is designed with a rotating feed flap. By controlling the speed of the No. 2 motor, the feed amount can be precisely controlled to ensure that the short fiber raw material enters the screw extruder evenly and stably. This design avoids the accumulation and blockage of raw materials and improves the efficiency and stability of the feeding process. Attached Figure Description

[0025] Figure 1 This is a first-view overall structural diagram of the present invention;

[0026] Figure 2 This is a schematic diagram of the overall structure of the present invention from a second perspective;

[0027] Figure 3 This is a schematic diagram of the material box structure after the sealing cover of this utility model is opened;

[0028] Figure 4 This is a partial structural cross-sectional view of the present invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Base; 2. Screw extruder; 3. Material bin; 4. Feed bin; 5. Crushing roller; 6. Motor No. 1; 7. Gear; 8. Controller; 9. Guide slide plate; 10. Support column; 11. Sealing cover plate; 12. Sealing gasket; 13. Rotating shaft; 14. Discharge flap; 15. Motor No. 2; 16. Gear reducer; 17. Motor No. 3. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0032] This utility model provides, for example Figure 1-4 The extruder for short fiber processing shown includes a base 1, a screw extruder 2 mounted on the top of the base 1, a feed inlet at one end of the top of the screw extruder 2, and a discharge outlet at the other end of the screw extruder 2. A material box 3 is positioned directly above the feed inlet of the screw extruder 2, and a feeding box 4 is fixedly connected to the bottom opening of the material box 3. The bottom opening of the feeding box 4 is connected to the feed inlet of the screw extruder 2. Two parallel crushing rollers 5 are rotatably connected inside the material box 3. A first motor 6 is mounted on the left side of the material box 3. A gear 7 is mounted on one end of each of the two crushing rollers 5, and the two gears 7 are meshed together. The other end of one of the crushing rollers 5 is connected to the output shaft of the first motor 6. A controller 8 is mounted on the front of the feeding box 4, and the first motor 6 is electrically connected to the controller 8. A sealing cover 11 is hinged to the top opening of the material box 3.

[0033] In one aspect of this embodiment, guide slides 9 are installed on both sides of the inner wall of the material box 3. Both guide slides 9 are angled downwards towards the junction of the two crushing rollers 5. A support column 10 is fixedly connected to each of the four corners of the bottom of the material box 3. The bottom of each of the four support columns 10 is fixedly connected to the top of the base 1. A sealing gasket 12 is installed on the bottom edge of the sealing cover 11. The sealing gasket 12 is made of rubber. A rotating shaft 13 is rotatably connected inside the feeding box 4. Multiple discharge flaps 14 arranged in a circular array are fixedly connected to the surface of the rotating shaft 13. The distance between two adjacent discharge flaps 14 is... The gap between them matches the bottom opening of the feed box 4. A second motor 15 is installed on the back of the feed box 4. One end of the rotating shaft 13 extends to the outside of the feed box 4 and is connected to the output shaft of the second motor 15. The second motor 15 is electrically connected to the controller 8. A gear reducer 16 is installed at one end of the top of the base 1. The output shaft of the gear reducer 16 is connected to the screw end of the screw extruder 2. A third motor 17 is installed on the surface of the gear reducer 16. The input shaft of the gear reducer 16 is connected to the output shaft of the third motor 17. The third motor 17 is electrically connected to the controller 8.

[0034] The screw extruder 2, crushing roller 5, controller 8 and gear reducer 16 mentioned above are all existing technology products, and their specific structures and functions will not be described in detail here.

[0035] Working principle of this utility model:

[0036] Refer to the instruction manual appendix Figure 1-4 When using this utility model, firstly, open the sealing cover 11 and put the short fiber raw material into the material box 3, then close the sealing cover 11, start the first motor 6 through the controller 8, and the output shaft of the first motor 6 drives one of the crushing rollers 5 to rotate. Since each of the two crushing rollers 5 is equipped with a meshing gear 7 at one end, when one crushing roller 5 rotates, it will drive the other crushing roller 5 to rotate synchronously. The short fiber raw material will slide down along the guide slide plate 9 to the junction of the two crushing rollers 5. The short fiber raw material is shredded by the two crushing rollers 5, so that the short fiber raw material is further dispersed.

[0037] The shredded short fiber raw material falls into the feeding box 4. At this time, the controller 8 starts the second motor 15. The output shaft of the second motor 15 drives the rotating shaft 13 to rotate. The feeding flap 14 on the surface of the rotating shaft 13 rotates accordingly, and the shredded short fiber raw material is evenly fed into the feed port of the screw extruder 2.

[0038] Next, the controller 8 starts the No. 3 motor 17. The output shaft of the No. 3 motor 17 drives the input shaft of the gear reducer 16 to rotate. The output shaft of the gear reducer 16 drives the screw of the screw extruder 2 to rotate. The screw pushes and squeezes the short fiber raw material at the feed port forward. After heating and plasticizing, it is discharged from the discharge port.

[0039] Throughout the entire operation, the sealing cover 11 and sealing gasket 12 on the top of the material box 3 can effectively prevent raw material leakage and pollution of the production environment. At the same time, the controller 8 can conveniently control the start-up and rotation speed of motor 6, motor 15 and motor 17, thereby achieving precise control of the crushing, feeding and extrusion process of short fiber raw materials.

Claims

1. An extruder for processing short fibers, comprising a base (1), characterized in that: A screw extruder (2) is mounted on the top of the base (1). The screw extruder (2) has a feed port at one end and a discharge port at the other end. A material box (3) is located directly above the feed port of the screw extruder (2). A feeding box (4) is fixedly connected to the bottom opening of the material box (3). The bottom opening of the feeding box (4) is connected to the feed port of the screw extruder (2). Two parallel feeding boxes are rotatably connected inside the material box (3). The material box (3) has a crushing roller (5), a No. 1 motor (6) is installed on the left side of the material box (3), a gear (7) is installed at one end of each of the two crushing rollers (5), the two gears (7) are meshed and connected, and the other end of one of the crushing rollers (5) is connected to the output shaft of the No. 1 motor (6) for transmission. A controller (8) is installed on the front of the feeding box (4), and the No. 1 motor (6) is electrically connected to the controller (8). A sealing cover plate (11) is hinged at the top opening of the material box (3).

2. The extruder for short fiber processing according to claim 1, characterized in that: The material box (3) is equipped with guide slides (9) on both sides of its inner wall. Both guide slides (9) are set obliquely downward toward the junction of the two crushing rollers (5).

3. The extruder for short fiber processing according to claim 1, characterized in that: Each of the four corners of the bottom of the material box (3) is fixedly connected to a support column (10), and the bottom of the four support columns (10) is fixedly connected to the top of the base (1).

4. The extruder for short fiber processing according to claim 1, characterized in that: A sealing gasket (12) is installed on the bottom edge of the sealing cover (11), and the sealing gasket (12) is made of rubber material.

5. An extruder for short fiber processing according to claim 1, characterized in that: The feed box (4) is rotatably connected to a rotating shaft (13), and a plurality of feeding flaps (14) arranged in a ring array are fixedly connected to the surface of the rotating shaft (13). The gap between two adjacent feeding flaps (14) matches the bottom opening of the feed box (4).

6. An extruder for short fiber processing according to claim 5, characterized in that: The feed box (4) is equipped with a second motor (15) on the back. One end of the rotating shaft (13) extends to the outside of the feed box (4) and is connected to the output shaft of the second motor (15). The second motor (15) is electrically connected to the controller (8).

7. An extruder for short fiber processing according to claim 1, characterized in that: A gear reducer (16) is installed at one end of the top of the base (1), and the output shaft of the gear reducer (16) is connected to one end of the screw of the screw extruder (2).

8. An extruder for short fiber processing according to claim 7, characterized in that: The gear reducer (16) is equipped with a No. 3 motor (17). The input shaft of the gear reducer (16) is connected to the output shaft of the No. 3 motor (17). The No. 3 motor (17) is electrically connected to the controller (8).

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