Plastic extruder with anti-blocking structure
By introducing a motor-driven rotor and gear system into the plastic extruder to crush solidified raw materials, and using filter plates and conveyor blades for secondary crushing, the problem of feed pipe blockage was solved, production efficiency was improved and costs were reduced.
Patent Information
- Application Number
- CN202520200350.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-09
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-09
AI Technical Summary
Existing plastic extruders lack anti-clogging features, which makes the feed pipe prone to blockage, affecting production efficiency and increasing operating costs.
A plastic extruder with an anti-clogging structure was designed. It crushes solidified raw materials through a motor-driven rotor and gear system, and performs secondary crushing using filter plates and conveyor blades to avoid clogging and waste.
It effectively prevents clogging of the feed pipe, improves production efficiency, reduces operating costs, and ensures product quality.
Smart Images

Figure CN223735327U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of plastic extruder technology, specifically a plastic extruder with an anti-clogging structure. Background Technology
[0002] Plastic extruders are a common type of plastic production equipment. They have a simple structure and are suitable for profiles such as soft polyvinyl chloride, polystyrene, and ABS. They can process a variety of plastic products, such as blown film, extruded pipe, pressed plate, and drawn strip. They can also be used for melt granulation. They are an indispensable piece of equipment for plastic production in modern society.
[0003] However, existing plastic extruders do not have anti-clogging functions. When there is a lot of solidified raw material in the plastic, it is easy to cause blockage in the feed pipe, which leads to a reduction in production efficiency. At the same time, when some large solidified raw materials are mixed in, it may affect the quality of subsequent products, thereby increasing operating costs. Utility Model Content
[0004] To overcome the above-mentioned defects, this utility model provides a plastic extruder with an anti-clogging structure, which solves the problem that existing plastic extruders do not have an anti-clogging function. When there is a lot of solidified raw material in the plastic, it is easy to cause the feed pipe to be blocked, which leads to a decrease in production efficiency. At the same time, when encountering some large solidified raw materials, they may affect the quality of subsequent products, thereby increasing the operating cost.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a plastic extruder with an anti-clogging structure, comprising an extruder body, a feed pipe connected to the extruder body, a feed inlet on the feed pipe, a protective box fixedly installed on the feed pipe, a rotating rod installed inside the protective box, a gear fixedly installed on the rotating rod, a motor installed inside the protective box, a rotating shaft connected to the output shaft of the motor, a gear fixedly installed on the rotating shaft, the gear and gear meshing, a plurality of crushing rods fixedly installed on the portion of the rotating rod passing through the feed pipe, a processing box installed on the outer wall of the feed pipe, and return ports opened on the feed pipe and the processing box.
[0006] As a further embodiment of this utility model: support legs are installed at the four corners of the bottom of the extruder body, and a connection port is provided on the feed pipe.
[0007] As a further embodiment of this utility model: a filter plate is installed inside the feed pipe, the filter plate is installed obliquely inside the feed pipe, and a baffle is slidably installed on the processing box.
[0008] As a further embodiment of this utility model: a second protective box is fixedly installed at the bottom of the processing box, and two grooved wheels are installed inside the second protective box.
[0009] As a further embodiment of this utility model: a belt is fitted onto the grooved wheel, and a second motor is installed at the bottom of the grooved wheel.
[0010] As a further embodiment of this utility model: a second rotating rod is connected to the grooved wheel, and a conveying blade is installed on the second rotating rod.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] 1. This plastic extruder with an anti-clogging structure is equipped with a motor, gear, rotating rod, and rotating shaft. During operation, the operator first turns on the motor installed inside the protective box. The output shaft of the motor drives the rotating shaft connected to it to rotate. The rotation of the rotating shaft drives the gear installed at its end to rotate. The rotation of gear one drives gear two to rotate. Since gear two is fixedly installed on rotating rod one, the rotation of gear two drives rotating rod one to rotate. The rotation of rotating rod one drives several crushing rods fixedly installed on it to rotate synchronously. Then, the material is poured into the feed pipe through the feed inlet. The material passes through the rotating crushing rods, and the solidified raw material is stirred and crushed. Then, it enters the extruder body through the filter plate. Larger solidified raw materials will remain on the filter plate, which facilitates subsequent work. This solves the problem that when there is a lot of solidified raw material in the plastic, it will easily cause the feed pipe to be blocked, thus reducing the production efficiency.
[0013] 2. This plastic extruder with an anti-clogging structure is designed so that when the operator turns on motor two, the output shaft of motor two drives the grooved wheel to rotate, which in turn drives the belt to rotate, thereby driving the rotating rod two and the conveyor blades connected to it to rotate. Then, the baffle is pulled, and the larger solidified raw materials remaining on the filter plate will enter the processing box through the connection port. Under the action of the conveyor blades, they will enter the feed pipe again through the return port, thereby secondary crushing of the solidified raw materials, avoiding waste and reducing operating costs. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a schematic diagram of the protective box and filter plate of this utility model;
[0016] Figure 3 This is a schematic diagram of the structure of the rotating rod and the motor of this utility model;
[0017] Figure 4 This is a schematic diagram of the structure of the baffle and conveying blade of this utility model;
[0018] In the diagram: 1. Extruder body; 2. Support leg; 3. Feed pipe; 4. Protective box one; 5. Feed port; 6. Processing box; 7. Protective box two; 8. Return port; 9. Crushing rod; 10. Rotating rod one; 11. Motor one; 12. Rotating shaft; 13. Gear one; 14. Gear two; 15. Baffle; 16. Motor two; 17. Belt; 18. Grooved wheel; 19. Rotating rod two; 20. Conveying blade; 21. Connection port; 22. Filter plate. Detailed Implementation
[0019] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0020] like Figure 1-4 As shown, this utility model provides a technical solution: a plastic extruder with an anti-clogging structure, including an extruder body 1, support legs 2 installed at the four corners of the bottom of the extruder body 1, and a connection port 21 opened on the feed pipe 3. Because the support legs 2 are installed, the extruder body 1 is prevented from moving due to vibration during operation, thus improving the stability of operation.
[0021] The extruder body 1 is connected to a feed pipe 3, and a filter plate 22 is installed inside the feed pipe 3. The filter plate 22 is installed at an angle inside the feed pipe 3. A baffle 15 is slidably installed on the processing box 6. Because the baffle 15 is slidably installed, the rate at which the larger solidified raw material remaining on the filter plate 22 enters the processing box 6 can be controlled by the baffle 15, ensuring the normal operation of subsequent work.
[0022] The feed pipe 3 is equipped with a feed port 5, and a protective box 4 is fixedly installed on the feed pipe 3. A rotating rod 10 is installed inside the protective box 4, and a gear 14 is fixedly installed on the rotating rod 10. A motor 11 is installed inside the protective box 4. Because the motor 11 is installed, the output shaft of the motor 11 drives the rotating shaft 12 connected to it to rotate, which in turn drives the rotating rod 10 to rotate. The rotation of the rotating rod 10 drives several crushing rods 9 fixedly installed on it to rotate synchronously, which can crush the solidified raw materials and prevent the feed pipe 3 from being blocked.
[0023] A rotating shaft 12 is connected to the output shaft of motor 11. Gear 13 is fixedly installed on the rotating shaft 12. Gear 13 and gear 2 14 mesh. Several crushing rods 9 are fixedly installed on the part of the feed pipe 3 through which the rotating rod 10 passes. A processing box 6 is installed on the outer wall of the feed pipe 3. A protective box 2 7 is fixedly installed at the bottom of the processing box 6. Two grooved wheels 18 are installed inside the protective box 2 7.
[0024] A belt 17 is fitted onto the grooved wheel 18, and a motor 16 is installed at the bottom of the grooved wheel 18. A rotating rod 19 is connected to the grooved wheel 18, and a conveying blade 20 is installed on the rotating rod 19. Because the motor 16 is installed, the grooved wheel 18 can be rotated, which in turn drives the belt 17 to rotate, thereby driving the rotating rod 19 and the conveying blade 20 connected to it to rotate. Under the action of the conveying blade 20, the residual solid raw material will enter the feed pipe 3 again through the return port 8, thereby performing secondary crushing of the solidified raw material, avoiding waste and reducing working costs.
[0025] The feed pipe 3 and the processing box 6 are provided with return ports 8.
[0026] The working principle of this utility model is as follows: During operation, the operator first opens the motor 11 installed inside the protective box 4. The output shaft of the motor 11 drives the rotating shaft 12 connected to it to rotate. The rotation of the rotating shaft 12 drives the gear 13 installed at its end to rotate. The rotation of the gear 13 drives the gear 2 14 to rotate. Since the gear 2 14 is fixedly installed on the rotating rod 10, the rotation of the gear 2 14 will drive the rotating rod 10 to rotate. The rotation of the rotating rod 10 drives several crushing rods 9 fixedly installed on it to rotate synchronously. Then, the material is poured into the feed pipe 3 through the feed inlet 5. The material passes through the rotating crushing rods 9. The solidified raw material is stirred and crushed, and then enters the extruder body 1 through the filter plate 22. Larger solidified raw materials remain on the filter plate 22. Then, the motor 16 is turned on, and the output shaft of the motor 16 drives the grooved wheel 18 to rotate. The grooved wheel 18 drives the belt 17 to rotate, thereby driving the rotating rod 19 and the conveying blade 20 connected to it to rotate. Then, the baffle 15 is pulled, and the larger solidified raw materials remaining on the filter plate 22 will enter the processing box 6 through the connection port 21. Under the action of the conveying blade 20, they will enter the feed pipe 3 again through the return port 8, thereby performing secondary crushing of the solidified raw material.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.
Claims
1. An extruder for plastic with an anti-clogging structure comprising an extruder body (1), characterized in that: The extruder body (1) is connected with the feeding pipe (3), the feeding pipe (3) is provided with the feeding port (5), the feeding pipe (3) is fixedly installed with the protection box one (4), the protection box one (4) is installed with the rotating rod one (10), the rotating rod one (10) is fixedly installed with the gear two (14), the protection box one (4) is installed with the motor one (11), the output shaft of the motor one (11) is connected with the rotating shaft (12), the rotating shaft (12) is fixedly installed with the gear one (13), the gear one (13) and the gear two (14) are engaged, the part of the feeding pipe (3) through the rotating rod one (10) is fixedly installed with a plurality of crushing rods (9), the outer wall of the feeding pipe (3) is installed with the processing box (6), the feeding pipe (3) and the processing box (6) are provided with the return port (8).
2. The plastic extruder with anti-blocking structure according to claim 1, characterized in that: The extruder body (1) is connected with the feeding pipe (3), the feeding pipe (3) is provided with the feeding port (5), the feeding pipe (3) is fixedly installed with the protection box one (4), the protection box one (4) is installed with the rotating rod one (10), the rotating rod one (10) is fixedly installed with the gear two (14), the protection box one (4) is installed with the motor one (11), the output shaft of the motor one (11) is connected with the rotating shaft (12), the rotating shaft (12) is fixedly installed with the gear one (13), the gear one (13) and the gear two (14) are engaged, the part of the feeding pipe (3) through the rotating rod one (10) is fixedly installed with a plurality of crushing rods (9), the outer wall of the feeding pipe (3) is installed with the processing box (6), the feeding pipe (3) and the processing box (6) are provided with the return port (8).
3. The plastic extruder with anti-blocking structure according to claim 1, characterized in that: The feeding pipe (3) is installed with the filter plate (22), the filter plate (22) is installed in the feeding pipe (3) in an inclined manner, and the processing box (6) is slidably installed with the baffle (15).
4. The plastic extruder with anti-blocking structure according to claim 1, characterized in that: The bottom of the processing box (6) is fixedly installed with the protection box two (7), and the protection box two (7) is installed with two grooved wheels (18).
5. The plastic extruder with anti-blocking structure according to claim 4, characterized in that: The grooved wheel (18) is sleeved with the belt (17), and the bottom of the grooved wheel (18) is installed with the motor two (16).
6. The plastic extruder with anti-blocking structure according to claim 4, characterized in that: The grooved wheel (18) is connected with the rotating rod two (19), and the rotating rod two (19) is installed with the conveying blade (20).