A screw extruder feed mechanism

Abstract

The utility model discloses a screw extruder feeding mechanism in the field of spandex staple fiber spinning, including base, the horizontal setting of machine cylinder is arranged on the base, the rotatable screw of machine cylinder is arranged along the axial direction in, the upside of machine cylinder is provided with the feeding bin, and the inside of feeding bin and machine cylinder is linked together, is provided with stirring subassembly in the inside of feeding bin, stirring subassembly includes the stirring shaft of horizontal setting, is provided with a plurality of stirring rod on the stirring shaft, stirring shaft and rotary drive mechanism transmission connection. The utility model discloses the raw material of being convenient for smoothly entering the inside of machine cylinder, avoids the blocking of material in the feeding bin.

Description

Technical Field

[0001] This utility model belongs to the field of polyester staple fiber spinning, and specifically relates to a screw extruder feeding mechanism. Background Technology

[0002] The screw extruder used in the polyester staple fiber spinning process is a precision extrusion equipment specifically designed for spinning processes. It is mainly used in polymer melt processing and the production of materials such as polyester staple fiber.

[0003] A screw extruder is a mechanical device that uses the rotational motion of a screw to convey, compress, melt, mix, and homogenize solid materials within a heated barrel, finally extruding them continuously through a die of a specific shape to form products with the desired cross-section. The feeding mechanism delivers raw materials such as plastic granules into the feeding hopper of the screw extruder. The raw materials then enter the barrel of the screw extruder from the feeding hopper, where they are extruded by the screw. Its disadvantage is that, due to the lack of a clearing mechanism, the raw materials entering the feeding hopper easily accumulate, causing blockages and preventing them from entering the barrel of the screw extruder, thus creating problems. Utility Model Content

[0004] The purpose of this invention is to provide a screw extruder feeding mechanism that facilitates the smooth entry of raw materials into the barrel, preventing material blockage in the feeding hopper and thus preventing it from entering the screw extruder barrel.

[0005] The purpose of this utility model is achieved as follows: A screw extruder feeding mechanism includes a base, a barrel horizontally arranged on the base, a screw rotatably arranged axially inside the barrel, a feeding bin arranged on the upper side of the barrel, the feeding bin being connected to the inside of the barrel, a stirring assembly arranged inside the feeding bin, the stirring assembly including a horizontally arranged stirring shaft, a plurality of stirring rods arranged on the stirring shaft, and the stirring shaft being connected to a rotary drive mechanism.

[0006] In operation, the raw material is fed into the feeding hopper, and the stirring shaft drives the stirring rod to rotate. This prevents the raw material from piling up in the feeding hopper, allowing it to smoothly enter the barrel and be extruded by the screw. Compared with the prior art, the advantages of this invention are: the rotational power of the screw drives the stirring shaft to rotate, which facilitates the smooth entry of the raw material into the barrel and avoids blockage in the feeding hopper, preventing the material from entering the barrel of the screw extruder.

[0007] As a further improvement of this utility model, one end of the screw shaft extends out of the barrel, and a reducer is installed on the base. Output shaft one and output shaft two are respectively provided on the left and right sides of the reducer. An input shaft connected to the drive motor is provided at the rear of the reducer. Output shaft one is connected to the extended end of the screw shaft via a coupling. The drive motor drives the screw to rotate through output shaft one of the reducer.

[0008] As a further improvement of this utility model, one end of the stirring shaft extends out of the feeding bin and is equipped with a first sprocket, while the second end of the output shaft is equipped with a second sprocket. The second sprocket is connected to the first sprocket via a chain. The drive motor drives the sprocket mechanism to rotate through the output shaft of the reducer, thereby rotating the stirring shaft. The same motor drives the mechanism, resulting in a more compact layout.

[0009] As a further improvement of this utility model, the stirring shaft includes a main shaft, a mounting shaft one rotatably connected to the left inner wall of the feeding bin, a mounting shaft two rotatably connected to the right side wall of the feeding bin, and a sprocket one installed at the end of the mounting shaft two extending out of the feeding bin.

[0010] As a further improvement of this utility model, flanges are provided at both the left and right ends of the main shaft, and flanges are provided at the right end of mounting shaft one and the left end of mounting shaft two, respectively. The left and right ends of the main shaft are fixedly connected to mounting shaft one and mounting shaft two via flanges. The main shaft, mounting shaft one, and mounting shaft two are connected by flanges.

[0011] As a further improvement of this utility model, the stirring rod is mounted on the main shaft, which has multiple through holes radially arranged to accommodate the stirring rods. Each stirring rod includes a sleeve that passes through the corresponding through hole. At least two locking nuts symmetrically distributed on the left and right sides of the main shaft are fitted onto the sleeve. Two adjusting rods are respectively inserted into the sleeve holes at the front and rear ends of the sleeve. Each adjusting rod has multiple adjusting holes spaced apart along its length. Locking bolts pass through the corresponding adjusting holes on the sleeve and adjusting rods, and fixing nuts are fitted onto the ends of the locking bolts. After loosening the locking bolts and nuts, the position of the adjusting rods can be adjusted axially. The corresponding adjusting hole is selected, and the adjusting rods are then locked again with the locking bolts and nuts. The main shaft is separated from mounting shaft one and mounting shaft two via flanges, and then the length of the adjusting rods is adjusted to accommodate different types of raw material characteristics.

[0012] As a further improvement of this utility model, the feeding bin is rectangular and the top of the feeding bin is provided with an openable cover. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the feeding hopper.

[0015] Figure 3 This is an enlarged view of the stirring rod.

[0016] Figure 4 This is a right view of the reducer and sprocket mechanism.

[0017] The components include: 1. Base; 2. Barrel; 3. Screw; 3a. Screw shaft; 4. Feeding hopper; 5. Agitator shaft; 501. Main shaft; 502. Mounting shaft one; 503. Mounting shaft two; 6. Agitator rod; 6a. Sleeve; 6b. Locking nut; 6c. Adjusting rod; 7. Reducer; 7a. Output shaft one; 7b. Output shaft two; 8. Drive motor; 9. Sprocket one; 10. Sprocket two; 11. Chain; 12. Flange; 13. Through hole; 14. Adjusting hole; 15. Locking bolt; 16. Fixing nut; 17. Cover. Detailed Implementation

[0018] like Figure 1-4 As shown, a screw extruder feeding mechanism includes a base 1, a barrel 2 horizontally mounted on the base 1, a screw 3 rotatably mounted axially inside the barrel 2, a feeding bin 4 on the upper side of the barrel 2, the feeding bin 4 being rectangular, and an openable cover 17 on the top of the feeding bin 4; the feeding bin 4 is connected to the interior of the barrel 2, and a stirring assembly is installed inside the feeding bin 4, the stirring assembly including a horizontally arranged stirring shaft 5, a plurality of stirring rods 6 mounted on the stirring shaft 5, and the stirring shaft 5 being connected to a rotary drive mechanism.

[0019] One end of the screw shaft 3a of the screw 3 extends out of the barrel 2. A reducer 7 is mounted on the base 1. Output shaft 7a and output shaft 7b are respectively located on the left and right sides of the reducer 7. An input shaft connected to the drive motor 8 is located at the rear of the reducer 7. Output shaft 7a is connected to the extended end of the screw shaft 3a via a coupling. The drive motor 8 drives the screw to rotate through the output shaft 7a of the reducer 7. One end of the stirring shaft 5 extends out of the feeding bin 4 and is equipped with a sprocket 9. A sprocket 10 is located at the end of the output shaft 7b. Sprocket 10 is connected to sprocket 9 via a chain 11. The drive motor 8 drives the sprocket mechanism to rotate through the output shaft 7b of the reducer 7, thereby rotating the stirring shaft 5. The single motor drive results in a more compact layout.

[0020] The stirring shaft 5 includes a main shaft 501. A mounting shaft 502 is rotatably connected to the left inner wall of the feeding bin 4, and a mounting shaft 503 is rotatably connected to the right side wall of the feeding bin 4. The end of the mounting shaft 503 extends out of the feeding bin 4 and is fitted with a sprocket 9. Flanges 12 are provided at both ends of the main shaft 501, and flanges 12 are also provided at the right end of the mounting shaft 502 and the left end of the mounting shaft 503. The left and right ends of the main shaft 501 are fixedly connected to the mounting shaft 502 and mounting shaft 503 respectively via flanges 12. The main shaft 501, mounting shaft 502, and mounting shaft 503 are connected via flanges 12.

[0021] A stirring rod 6 is mounted on a main shaft 501. The main shaft 501 has multiple radially protruding through-holes 13 for each stirring rod 6 to pass through. Each stirring rod 6 includes a sleeve 6a, which passes through the corresponding through-hole 13. At least two locking nuts 6b are symmetrically distributed on the left and right sides of the main shaft 501 and fitted onto the sleeve 6a. Two adjusting rods 6c are respectively inserted into the front and rear end holes of the sleeve 6a. Each adjusting rod 6c has multiple adjusting holes 14 spaced apart along its length. A locking bolt 15 passes through the corresponding adjusting holes 14 on the sleeve 6a and the adjusting rod 6c. A fixing nut 16 is fitted onto the end of the locking bolt 15. After loosening the locking bolt 15 and nuts, the position of the adjusting rod 6c can be adjusted axially. The corresponding adjusting hole 14 is selected, and the adjusting rod 6c is then locked again using the locking bolt 15 and nuts. The main shaft 501 is separated from mounting shaft 1 502 and mounting shaft 2 503 via flange 12. The length of the adjusting rod 6c is then adjusted to accommodate different types of raw material characteristics.

[0022] In operation, the raw material is fed into the feeding hopper 4, and the stirring shaft 5 drives the stirring rod 6 to rotate. This prevents the raw material from piling up in the feeding hopper 4, allowing it to smoothly enter the barrel 2, where it is extruded by the screw. The advantage of this invention is that the rotational power of the screw drives the stirring shaft 5 to rotate, facilitating the smooth entry of the raw material into the barrel 2 and preventing blockage in the feeding hopper 4, which would prevent the material from entering the barrel 2 of the screw extruder.

[0023] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. A screw extruder feeding mechanism, comprising a base, a barrel horizontally mounted on the base, a screw rotatably mounted axially inside the barrel, and a feeding bin on the upper side of the barrel, the feeding bin being connected to the interior of the barrel, characterized in that... The feeding hopper is equipped with a stirring assembly, which includes a horizontally arranged stirring shaft with several stirring rods on it. The stirring shaft is connected to a rotary drive mechanism.

2. A screw extruder feed mechanism according to claim 1, wherein, One end of the screw shaft extends out of the barrel. A reducer is installed on the base. Output shaft one and output shaft two are respectively provided on the left and right sides of the reducer. An input shaft connected to the drive motor is provided on the rear side of the reducer. Output shaft one is connected to the extended end of the screw shaft via a coupling.

3. A screw extruder feed mechanism according to claim 2, wherein, One end of the stirring shaft extends out of the feeding bin and is equipped with a sprocket. The output shaft has a second sprocket at one end, and the second sprocket is connected to the first sprocket via a chain.

4. A screw extruder feed mechanism according to claim 3, wherein, The stirring shaft includes a main shaft, a mounting shaft 1 rotatably connected to the left inner wall of the feeding bin, and a mounting shaft 2 rotatably connected to the right wall of the feeding bin. The end of the mounting shaft 2 extends out of the feeding bin and is equipped with a sprocket 1.

5. A screw extruder feed mechanism according to claim 4, wherein, Flanges are provided at both the left and right ends of the main shaft. Flanges are provided at the right end of mounting shaft one and the left end of mounting shaft two. The left and right ends of the main shaft are fixedly connected to mounting shaft one and mounting shaft two respectively via flanges.

6. A screw extruder feeding mechanism according to claim 4 or 5, characterized in that The stirring rod is mounted on the main shaft, which has multiple through holes radially open to accommodate the stirring rods. The stirring rod includes a sleeve that passes through the corresponding through holes. At least two locking nuts symmetrically distributed on the left and right sides of the main shaft are fitted on the sleeve. Two adjusting rods are respectively inserted into the sleeve holes at the front and rear ends of the sleeve. The adjusting rods have multiple adjusting holes spaced apart along their length. Locking bolts pass through the corresponding adjusting holes on the sleeve and adjusting rods, and fixing nuts are fitted on the ends of the locking bolts.

7. A screw extruder feed mechanism according to any one of claims 1 to 5, wherein The feeding hopper is rectangular and has an openable cover on top.

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