Screw extrusion head filtering device of screw extruder

Abstract

The utility model relates to the technical field of extruders, in particular to a screw extrusion head filter device of a screw extruder, which comprises an extruder body, an extrusion head fixedly mounted at one end of the extruder body, a filter screen plate arranged on one side of the extrusion head, a moving plate fixedly connected to the upper side of the filter screen plate, and a cleaning brush mounted on one side of the moving plate. A sliding block is arranged on one side of the cleaning brush, a swing rod is installed on the lower side of the sliding block, and a driving block is slidably connected into the swing rod. The device has the beneficial effects that the movable plate moves downwards, so that the filter screen plate fixedly connected with the movable plate is driven to move downwards until the filter screen plate is coaxial with the extrusion head and one side of the filter screen plate abuts against the extrusion head, impurities in materials are filtered through the filter screen plate, and then through upward movement of the movable plate, the impurities in the materials are filtered out; the driving block slides up and down in the swing rod in a reciprocating manner, so that the swing rod indirectly drives the sliding block to do transverse reciprocating motion, the cleaning brush mounted on one side of the sliding block is used for cleaning the filter screen plate, and the trouble of manually disassembling the filter screen plate is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of extruders, in particular to a filtering device for a screw extrusion head of a screw extruder. Background Technique

[0002] Screw extruders are divided into two types: cold-feed screw extruders and hot-feed screw extruders, both of which are used for extruding rubber semi-finished products and products. The cold-feed screw extruder can feed unheated rubber materials, and through the actions of screw extrusion, shearing, and stirring, the rubber materials are heated and plasticized, and continuously extruded through the die.

[0003] In the prior art, the raw materials of the extruder are usually plastic particles. It is easy for plastic particles to be mixed with a small amount of impurity particles, which will affect the forming quality of the surface of the extruded board. Therefore, a filter mesh plate is generally installed at the screw extrusion head position of the screw extruder through the cooperation of fasteners such as bolts or screws, so as to reduce the mixing of impurities in the processed materials.

[0004] However, the method of fixedly installing the filtering device by bolts or screws is not convenient for frequent disassembly and cleaning, and at the same time, it is easy to cause blockage of the filter mesh plate, reducing the practicability. In addition, the disassembled filter mesh plate needs to be manually cleaned by the operator, which is time-consuming and laborious, and thus affects the processing efficiency. Content of the Utility Model

[0005] The purpose of the utility model is to provide a filtering device for a screw extrusion head of a screw extruder, so as to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A filtering device for a screw extrusion head of a screw extruder, comprising: an extruder main body, an extrusion head is fixedly installed at one end of the extruder main body, a filter mesh plate is arranged on one side of the extrusion head, and a moving plate is fixedly connected to the upper side of the filter mesh plate.

[0007] A cleaning brush is installed on one side of the moving plate, a slider is arranged on one side of the cleaning brush, a swing rod is installed under the slider, and a driving block is slidably connected inside the swing rod.

[0008] Preferably, L-shaped plates are arranged on both sides of the moving plate, a limiting rail is fixedly connected to one side of the L-shaped plate, and the filter mesh plate is slidably connected between the limiting rails.

[0009] Preferably, one end of the L-shaped plate is fixedly connected to the extruder main body, a connecting seat is fixedly connected to the upper surface of the moving plate, and a threaded rod is rotatably sleeved on the top of the L-shaped plate.

[0010] Preferably, one end of the threaded rod is fixedly connected to the output end of a small motor, the small motor is fixedly connected to one of the L-shaped plates, and a threaded sleeve is sleeved on the threaded rod.

[0011] Preferably, the threaded sleeve is rotatably connected to one end of the connecting rod through a fixed shaft, and the other end of the connecting rod is rotatably connected to the connecting seat through a fixed shaft.

[0012] Preferably, one side of the cleaning brush is fixedly connected to the slider through a fixed rod, the lower surface of the slider is slidably connected to the chute plate, and the lower surface of the chute plate is fixedly connected to the support plate.

[0013] Preferably, one end of the swing rod is rotatably connected to the slider through a connecting shaft, the other end of the swing rod is rotatably connected to one end of the short rod through a connecting shaft, and the other end of the short rod is rotatably sleeved on the fixed column.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The extruder body is used to process materials. When the material to be processed is about to be extruded from the extrusion head fixedly installed at one end of the extruder body, the moving plate moves downward, thereby driving the filter screen plate fixedly connected thereto to move downward until the filter screen plate is coaxial with the extrusion head and one side of the filter screen plate abuts against the extrusion head, so as to filter impurities in the material through the filter screen plate. When it is necessary to clean the filter screen plate, the moving plate moves upward, driving the filter screen plate to move upward until the filter screen plate moves to one side of the cleaning brush. By the driving block sliding up and down reciprocally in the swing rod, the swing rod indirectly drives the slider to make a reciprocating lateral movement, so that the cleaning brush installed on one side of the slider cleans the filter screen plate, avoiding the trouble of manual disassembly of the filter screen plate, and at the same time, the filter screen plate can be quickly cleaned, avoiding the blockage of the filter screen plate, saving time and effort, and improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic top view of the overall structure of the present utility model;

[0017] Figure 3 is the present utility model Figure 2 a schematic enlarged view of the structure at A in;

[0018] Figure 4 is a schematic bottom view of the overall structure of the present utility model.

[0019] In the figure: 1. Extruder body; 2. Extrusion head; 3. Filter screen plate; 4. Moving plate; 5. Cleaning brush;

[0020] 6. Slider; 7. Swing rod; 8. Driving block; 9. L-shaped plate; 10. Limit rail; 11. Connecting seat; 12. Threaded rod; 13. Small motor; 14. Threaded sleeve; 15. Fixed shaft; 16. Connecting rod; 17. Fixed rod;

[0021] 18. Slide chute plate; 19. Support plate; 20. Connecting shaft; 21. Short rod; 22. Fixed column; 23. Large motor; 24. Turntable; 25. Drive shaft; 26. Pin shaft. Detailed implementation manners

[0022] In order to clearly and completely describe the purpose, technical solution of the present utility model and make the advantages more clearly understood, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all of the embodiments, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0023] Embodiment 1

[0024] Please refer to Figures 1-4 , the present utility model provides a technical solution: a screw extrusion head filtering device of a screw extruder, including: an extruder main body 1, an extrusion head 2 is fixedly installed at one end of the extruder main body 1, a filter screen plate 3 is arranged on one side of the extrusion head 2, a moving plate 4 is fixedly connected to the upper side of the filter screen plate 3, a cleaning brush 5 is installed on one side of the moving plate 4, a slider 6 is arranged on one side of the cleaning brush 5, a swing rod 7 is installed on the lower side of the slider 6, and a driving block 8 is slidably connected inside the swing rod 7.

[0025] The material is processed by the extruder main body 1. When the material to be processed is about to be extruded from the extrusion head 2 fixedly installed at one end of the extruder main body 1, the moving plate 4 moves downward, thereby driving the filter screen plate 3 fixedly connected thereto to move downward until the filter screen plate 3 is coaxial with the extrusion head 2 and one side of the filter screen plate 3 abuts against the extrusion head 2, so as to filter the impurities in the material through the filter screen plate 3. When it is necessary to clean the filter screen plate 3, the moving plate 4 moves upward, and the driving block 8 reciprocates up and down inside the swing rod 7, so that the swing rod 7 indirectly drives the slider 6 to perform a reciprocating lateral movement, so that the cleaning brush 5 installed on one side of the slider 6 cleans the filter screen plate 3, avoiding the trouble of manually disassembling the filter screen plate 3, and at the same time, the filter screen plate 3 can be quickly cleaned, avoiding the blockage of the filter screen plate 3, saving time and effort, and improving the processing efficiency.

[0026] Embodiment 2

[0027] On the basis of the first embodiment, L-shaped plates 9 are arranged on both sides of the moving plate 4. A limiting rail 10 is fixedly connected to one side of the L-shaped plate 9. The filter screen plate 3 is slidably connected to the limiting rail 10. The limiting rail 10 fixedly installed on one side of the L-shaped plate 9 limits the moving plate 4 and the filter screen plate 3, so as to ensure the stability during their movement. One end of the L-shaped plate 9 is fixedly connected to the extruder main body 1. A connecting seat 11 is fixedly connected to the upper surface of the moving plate 4. A threaded rod 12 is rotatably sleeved on the top of the L-shaped plate 9. One end of the L-shaped plate 9 is fixedly installed on one side of the extruder main body 1 and supports the threaded rod 12 at the same time. One end of the threaded rod 12 is fixedly connected to the output end of the small motor 13. The small motor 13 is fixedly connected to the L-shaped plate 9 on one side. A threaded sleeve 14 is sleeved on the threaded rod 12. The small motor 13 drives the threaded rod 12 to rotate, so that the threaded rod 12 drives the threaded sleeve 14 to move. The threaded sleeve 14 is rotatably connected to one end of the connecting rod 16 through a fixed shaft 15. The other end of the connecting rod 16 is rotatably connected to the connecting seat 11 through a fixed shaft 15. Through the cooperation among the connecting rod 16, the connecting seat 11 and the fixed shaft 15, the connecting seat 11 drives the moving plate 4 to move.

[0028] By starting the operation of the small motor 13, the small motor 13 drives the threaded rod 12 to rotate on the top of the L-shaped plate 9, so that the threaded rod 12 drives the threaded sleeve 14 thereon to move. When the threaded sleeves 14 move towards each other, one end of the connecting rod 16 is rotatably connected to the threaded sleeve 14 through a fixed shaft 15, and the other end of the connecting rod 16 is rotatably connected to the connecting seat 11 through a fixed shaft 15, thereby driving the connecting seat 11 to move downward. Further, the connecting seat 11 drives the moving plate 4 to move downward. The two sides of the moving plate 4 slide on the limiting rail 10, so as to limit the moving plate 4 and ensure the stability of the movement of the moving plate 4 and the filter screen plate 3. The moving plate 4 drives the filter screen plate 3 to move to be coaxial with the extrusion head 2 and one side of the filter screen plate 3 abuts against the extrusion head 2. At this time, the motor stops moving, thus completing the installation of the filter screen plate 3, which is convenient for filtering impurities of the processed material through the filter screen plate 3 and ensuring the processing quality. When it is necessary to clean the filter screen plate 3, the small motor 13 rotates in the reverse direction, so that the moving plate 4 drives the filter screen plate 3 to move upward, which is convenient for cleaning the filter screen plate 3 and avoiding the trouble of disassembling and cleaning it.

[0029] Embodiment Three

[0030] On the basis of Embodiment 2, one side of the cleaning brush 5 is fixedly connected to the slider 6 through a fixing rod 17. The lower surface of the slider 6 is slidably connected to the chute plate 18. The lower surface of the chute plate 18 is fixedly connected to the support plate 19. The fixing rod 17 is fixedly connected between the slider 6 and the cleaning brush 5 to support the cleaning brush 5. The chute plate 18 limits the slider 6. One end of the swing rod 7 is rotatably connected to the slider 6 through a connecting shaft 20. The other end of the swing rod 7 is rotatably connected to one end of the short rod 21 through a connecting shaft 20. The other end of the short rod 21 is rotatably sleeved on the fixed column 22. Both ends of the swing rod 7 are rotatably connected to the slider 6 and the short rod 21 respectively through the connecting shaft 20, facilitating the swinging of the swing rod 7. The fixed column 22 limits one end of the short rod 21. One end of the fixed column 22 is fixedly connected to the support plate 19. A large motor 23 is fixedly installed on one side of the support plate 19. The output end of the large motor 23 is fixedly connected to the turntable 24 through a drive shaft 25. The drive shaft 25 is rotatably sleeved in the support plate 19. The turntable 24 is rotatably connected to the drive block 8 through a pin shaft 26. By driving the drive shaft 25 to rotate through the large motor 23, the drive shaft 25 drives the turntable 24 to rotate, causing the turntable 24 to drive the drive block 8 to reciprocate in the swing rod 7 through the pin shaft 26.

[0031] By starting the large motor 23, the output end of the large motor 23 drives the drive shaft 25 to rotate. The drive shaft 25 then drives the turntable 24 at one of its ends to rotate. Under the rotation of the turntable 24, the turntable 24 drives the drive block 8 to move through the pin shaft 26. The drive block 8 is slidably installed in the swing rod 7, causing the drive block 8 to slide up and down reciprocally in the swing rod 7. At the same time, one end of the swing rod 7 is rotatably connected to one end of the short rod 21 through the connecting shaft 20, and the fixed column 22 limits the other end of the short rod 21, causing the swing rod 7 to swing horizontally back and forth. Furthermore, the other end of the swing rod 7 drives the slider 6 to reciprocate in the chute plate 18 fixedly installed above the support plate 19 through the connection of the connecting shaft 20. Thus, the cleaning brush 5 is driven to reciprocate through the connection of the fixing rod 17, realizing the automatic cleaning of the filter screen plate 3 and preventing it from being blocked due to impurity accumulation.

[0032] In actual use, the small motor 13 and the large motor 23 are electrically connected to an external terminal control device, and the extruder body 1 is used to process materials. When the material to be processed is about to be extruded from the extrusion head 2 fixedly installed at one end of the extruder body 1, by starting the operation of the small motor 13, the small motor 13 drives the threaded rod 12 to rotate on the top of the L-shaped plate 9, so that the threaded rod 12 drives the threaded sleeve 14 thereon to move. When the threaded sleeves 14 move towards each other, one end of the connecting rod 16 is rotatably connected to the threaded sleeve 14 through the fixed shaft 15, and the other end of the connecting rod 16 is rotatably connected to the connecting seat 11 through the fixed shaft 15, thereby driving the connecting seat 11 to move downward. Furthermore, the connecting seat 11 drives the moving plate 4 to move downward. Both sides of the moving plate 4 slide on the limiting rails 10, thereby limiting the moving plate 4 and ensuring the stability of the movement of the moving plate 4 and the filter screen plate 3. The moving plate 4 drives the filter screen plate 3 to move to be coaxial with the extrusion head 2 and one side of the filter screen plate 3 abuts against the extrusion head 2. At this time, the motor stops moving, thus completing the installation of the filter screen plate 3, facilitating the filtration of impurities in the processed materials through the filter screen plate 3 and ensuring the processing quality. When it is necessary to clean the filter screen plate 3, the small motor 13 rotates in the reverse direction, so that the moving plate 4 drives the filter screen plate 3 to move upward. By starting the large motor 23, the output end of the large motor 23 drives the drive shaft 25 to rotate, and the drive shaft 25 drives the turntable 24 at one end thereof to rotate. Under the rotation of the turntable 24, the turntable 24 drives the drive block 8 to move through the pin shaft 26. The drive block 8 is slidably installed in the swing rod 7, so that the drive block 8 slides up and down reciprocally in the swing rod 7. At the same time, one end of the swing rod 7 is rotatably connected to one end of the short rod 21 through the connecting shaft 20, and the fixed column 22 limits the other end of the short rod 21, so that the swing rod 7 swings horizontally reciprocally. Furthermore, the other end of the swing rod 7 drives the slider 6 to reciprocally slide in the chute plate 18 fixedly installed on the upper side of the support plate 19 through the connection of the connecting shaft 20, so that the cleaning brush 5 reciprocally moves through the connection of the fixed rod 17, thereby realizing the automatic cleaning of the filter screen plate 3, avoiding its blockage due to impurity accumulation, and at the same time avoiding the trouble of installing and disassembling the filter screen plate 3 through fasteners such as bolts or screws, saving time and effort and improving the processing efficiency.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screw extruder head filter device for a screw extruder, comprising an extruder body (1), characterized in that: An extrusion head (2) is fixedly mounted on one end of the extruder body (1), a filter screen (3) is arranged on one side of the extrusion head (2), and a movable plate (4) is fixedly connected to the upper side of the filter screen (3); A cleaning brush (5) is installed on one side of the movable plate (4), a slider (6) is provided on one side of the cleaning brush (5), a swing rod (7) is installed on the lower side of the slider (6), and a driving block (8) is slidably connected inside the swing rod (7).

2. The screw extruder head filter device of a screw extruder according to claim 1, characterized in that: L-shaped plates (9) are arranged on both sides of the movable plate (4), one side of the L-shaped plate (9) is fixedly connected to a limit rail (10), and the filter screen plate (3) is slidably connected to the limit rail (10).

3. The screw extruder head filter device of a screw extruder according to claim 2, characterized in that: One end of the L-shaped plate (9) is fixedly connected to the extruder body (1); a connecting seat (11) is fixedly connected to the upper surface of the movable plate (4); and a threaded rod (12) is rotatably sleeved on the top of the L-shaped plate (9).

4. The screw extruder head filter device of a screw extruder according to claim 3, characterized in that: One end of the threaded rod (12) is fixedly connected to the output end of the small motor (13), the small motor (13) is fixedly connected to one side of the L-shaped plate (9), and a threaded sleeve (14) is sleeved on the threaded rod (12).

5. The screw extruder head filter device of a screw extruder according to claim 4, characterized in that: The threaded sleeve (14) is rotatably connected to one end of a connecting rod (16) via a fixed shaft (15), and the other end of the connecting rod (16) is rotatably connected to a connecting seat (11) via the fixed shaft (15).

6. The screw extruder head filter device of a screw extruder according to claim 5, characterized in that: One side of the cleaning brush (5) is fixedly connected to the slider (6) via a fixing rod (17), the lower surface of the slider (6) is slidably connected to the slide plate (18), and the lower surface of the slide plate (18) is fixedly connected to the support plate (19).

7. The screw extruder head filter device of a screw extruder according to claim 6, characterized in that: One end of the swing rod (7) is rotatably connected to the slider (6) via a connecting shaft (20), and the other end of the swing rod (7) is rotatably connected to one end of a short rod (21) via the connecting shaft (20), and the other end of the short rod (21) is rotatably sleeved on a fixing column (22).

8. The screw extruder head filter device of a screw extruder according to claim 7, characterized in that: One end of the fixed column (22) is fixedly connected to the support plate (19); a large motor (23) is fixedly mounted on one side of the support plate (19); an output end of the large motor (23) is fixedly connected to the turntable (24) via a drive shaft (25); the drive shaft (25) is rotatably sleeved in the support plate (19); and the turntable (24) is rotatably connected to the drive block (8) via a pin shaft (26).

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