A twin-screw extruder feeder

Abstract

This utility model relates to the technical field of plastic processing equipment and discloses a feeder for a twin-screw extruder, comprising: an extruder body placed on a table; a dredging structure including a first dredging section and a second dredging section. The first dredging section includes a first push plate disposed inside the extruder body, a first connecting plate fixedly installed on the top of the first push plate, a first limiting sleeve fixedly installed on the top of the first connecting plate, a first limiting groove formed on the inner top of the extruder body, a first guide plate fixedly installed inside the first limiting groove, and the first limiting sleeve sleeved and installed on the outer wall of the first guide plate; the second dredging section includes a second fixing plate fixedly installed on the top of the extruder body, thereby scraping off and discharging plastic granules adhering to the inner wall of the device, allowing the device to fully output materials, improving the discharge effect of plastic granules, and enhancing the ease of use of the device.

Description

Technical Field

[0001] This utility model belongs to the technical field of plastic processing equipment, specifically, it relates to a feeder for a twin-screw extruder. Background Technology

[0002] In the production and processing of plastic products and plastic granules, the twin-screw extruder is a key piece of equipment, capable of melting, mixing, plasticizing, and extruding plastic raw materials into shapes. The feeder, as an important component of the twin-screw extruder, directly affects the extruder's production efficiency and product quality.

[0003] Utility model CN222662781U relates to the field of fertilizer production and discloses an automatic feeder for a twin-screw extruder used in granulation molding. The feeder includes a worktable, a support rod fixedly connected to the lower surface of the worktable, a housing fixedly connected to the upper surface of the worktable, a water tank fixedly connected to the upper surface of the housing, a feed inlet fixedly connected to the inside of the water tank, a water inlet fixedly connected to the upper surface of the water tank, a spray nozzle fixedly connected to the lower surface of the water tank, and helical blades fixedly connected to the outer wall of the driven wheel. A drive assembly is provided on the upper surface of the worktable. In this utility model, by installing a water tank above the extruder, water from the tank flows through the spray nozzle and is sprayed into the mixing chamber. When the helical blades rotate, they are cleaned, ensuring the efficiency of the helical blades and ultimately achieving the effect of cleaning the inner wall while fully mixing the raw materials.

[0004] However, the aforementioned patent still has the following problems: During the discharge stage, some plastic particles easily adhere to the inner wall of the device. Due to the stickiness of the plastic particles, they easily adhere to the inner wall due to factors such as electrostatic adsorption and temperature changes. The spiral groove plate on the screw is mainly designed to push the material forward. For the plastic particles attached to the inner wall, its force is limited, and it cannot effectively peel these particles off the inner wall and complete the discharge. During the feeding process, the problem of plastic particles clogging the feed hopper holes is also quite prominent.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] To solve the aforementioned technical problem of insufficient plastic granule output, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A twin-screw extruder feeder includes:

[0008] The extruder body is placed on the table.

[0009] The unblocking structure includes a first unblocking part and a second unblocking part. The first unblocking part includes a first push plate disposed inside the extruder body, a first connecting plate fixedly installed on the top of the first push plate, a first limiting sleeve fixedly installed on the top of the first connecting plate, a first limiting groove opened on the inner top of the extruder body, a first guide plate fixedly installed inside the first limiting groove, and the first limiting sleeve sleeved and installed on the outer wall of the first guide plate. The second unblocking part includes a second fixing plate fixedly installed on the top of the extruder body, a hydraulic cylinder fixedly installed on one side of the outer wall of the second fixing plate, and a second connecting plate fixedly installed on the top of the first limiting sleeve.

[0010] In a preferred embodiment of the present invention, the second unblocking part further includes a hydraulic push rod disposed on one side of the outer wall of the second fixed plate, the output end of the hydraulic cylinder is fixedly connected to one end of the telescopic inner rod of the hydraulic push rod, and the other end of the telescopic inner rod of the hydraulic push rod is fixedly connected to one side of the outer wall of the second connecting plate.

[0011] In a preferred embodiment of the present invention, the top of the extruder body is provided with an opening, a feed hopper is fixedly installed in the opening, a hole is provided on the outer wall of the feed hopper, a fixing sleeve is fixedly installed in the hole, two sets of first limiting ring plates are fixedly installed inside the fixing sleeve, and a first rotating shaft is rotatably installed inside the first limiting ring plates.

[0012] In a preferred embodiment of this utility model, a set of first bevel gears and a set of second bevel gears are fixedly installed at one end of each of the two sets of first rotating shafts, the first bevel gears and the second bevel gears meshing together. A first fixed circular plate is fixedly installed at the other end of the set of first rotating shafts. A first fixed rod is fixedly installed at the bottom of the first fixed circular plate. Two sets of stirring plates are fixedly installed on the top of the outer wall of the first fixed rod.

[0013] In a preferred embodiment of the present invention, a first fixing plate is fixedly installed at one end of the fixing sleeve, a first servo motor is fixedly installed on one side of the outer wall of the first fixing plate, and the output shaft of the first servo motor is fixedly connected to one end of a set of first rotating shafts through a coupling.

[0014] In a preferred embodiment of the present invention, a first sealing plate is fixedly installed on one side of the outer wall of the extruder body, and two sets of second rotating shafts are rotatably installed on one side of the outer wall of the first sealing plate. A threaded rod is fixedly installed at one end of each second rotating shaft. Two sets of second servo motors are fixedly installed on the other side of the outer wall of the first sealing plate, and the output shaft of each second servo motor is fixedly connected to one end of each second rotating shaft via a coupling.

[0015] In a preferred embodiment of this utility model, the two sets of threaded rods are disposed inside the first push plate, the outer wall of the first push plate is in close contact with the inner wall of the extruder body, and a discharge pipe is fixedly installed on the other outer wall of the extruder body.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. To scrape off the plastic granules adhering to the inner wall of the device and discharge them, so that the device can fully output the material, improve the discharge efficiency of plastic granules, and improve the ease of use of the device.

[0018] 2. To achieve the purpose of agitating and conveying materials, reducing material blockage at the discharge port, improving the processing efficiency of the equipment, and enhancing the stability of the equipment in use.

[0019] 3. To achieve the goal of rapid extrusion of plastic granules, improve the discharge efficiency of plastic granules, and optimize the user experience of the device.

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0021] In the attached diagram:

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a structural diagram of the internal structure of the feed hopper of this utility model;

[0024] Figure 3 This is a schematic diagram showing the disassembled fixing sleeve and the first limiting ring plate of this utility model;

[0025] Figure 4 This is an internal structural diagram of the extruder body of this utility model;

[0026] Figure 5 This is a schematic diagram of the first push plate structure of this utility model;

[0027] Figure 6 This is a schematic diagram of the first limiting groove structure of this utility model;

[0028] Figure 7 This is a schematic diagram of the threaded rod structure of this utility model.

[0029] In the diagram: 10. Extruder body; 11. Feed hopper; 12. Fixed sleeve; 13. First fixed plate; 14. First servo motor; 15. First limiting ring plate; 16. First rotating shaft; 17. First bevel gear; 18. Second bevel gear; 19. First fixed circular plate; 20. First fixed rod; 21. Stirring plate; 22. First sealing plate; 23. Second rotating shaft; 24. Second servo motor; 25. Threaded rod; 26. First limiting groove; 27. First guide plate; 28. First push plate; 29. ​​First connecting plate; 30. First limiting sleeve; 31. Second connecting plate; 32. Second fixed plate; 33. Hydraulic cylinder; 34. Hydraulic push rod. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0031] Example 1: A feeder for a twin-screw extruder, specifically as follows: Figure 1 , Figure 4 , Figure 5 and Figure 6 As shown, the device includes an extruder body 10, which is placed on a table. A dredging structure is also included, comprising a first dredging section and a second dredging section. The first dredging section includes a first push plate 28 disposed inside the extruder body 10, a first connecting plate 29 fixedly mounted on the top of the first push plate 28, a first limiting sleeve 30 fixedly mounted on the top of the first connecting plate 29, a first limiting groove 26 formed on the inner top of the extruder body 10, a first guide plate 27 fixedly mounted inside the first limiting groove 26, and the first limiting sleeve 30 fitted onto the outer wall of the first guide plate 27. The second dredging section includes a second fixing plate 32 fixedly mounted on the top of the extruder body 10, a hydraulic cylinder 33 fixedly mounted on one outer wall of the second fixing plate 32, and a second connecting plate 31 fixedly mounted on the top of the first limiting sleeve 30. The dredging structure dredges and discharges material from the inner wall of the device, while the first guide plate 27 limits and guides the first limiting sleeve 30.

[0032] Specifically, such as Figure 1 , Figure 4 , Figure 5 and Figure 6As shown, the second unblocking section also includes a hydraulic push rod 34 disposed on one side of the outer wall of the second fixed plate 32. The output end of the hydraulic cylinder 33 is fixedly connected to one end of the telescopic inner rod of the hydraulic push rod 34, and the other end of the telescopic inner rod of the hydraulic push rod 34 is fixedly connected to one side of the outer wall of the second connecting plate 31. When the hydraulic cylinder 33 is activated, the hydraulic push rod 34 is driven to telescopically move, pushing the second connecting plate 31 to move, causing the first limiting sleeve 30 to move on the outer wall of the first guide plate 27, causing the first connecting plate 29 to move inside the first limiting groove 26, and causing the first push plate 28 to move inside the extruder body 10.

[0033] Based on the above, the structure of the extruder body 10, the first limiting groove 26, the first guide plate 27, the first push plate 28, the first connecting plate 29, the first limiting sleeve 30, the second connecting plate 31, the second fixing plate 32, the hydraulic cylinder 33 and the hydraulic push rod 34 can scrape off the plastic particles attached to the inner wall of the device and discharge them, so that the device can fully output the material, improve the discharge effect of plastic particles, and improve the convenience of using the device.

[0034] Example 2: Based on Example 1, specifically as follows... Figure 1 , Figure 2 and Figure 3 As shown, the top of the extruder body 10 has an opening, and a feed hopper 11 is fixedly installed inside the opening. A hole is formed on the outer wall of the feed hopper 11, and a fixing sleeve 12 is fixedly installed inside the hole. Two sets of first limiting ring plates 15 are fixedly installed inside the fixing sleeve 12, and a first rotating shaft 16 is rotatably installed inside the first limiting ring plates 15. Raw materials are placed inside the feed hopper 11.

[0035] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, a first bevel gear 17 and a second bevel gear 18 are fixedly installed at one end of each of the two sets of first rotating shafts 16, respectively. The first bevel gear 17 and the second bevel gear 18 mesh. A first fixed circular plate 19 is fixedly installed at the other end of each set of first rotating shafts 16. A first fixed rod 20 is fixedly installed at the bottom of the first fixed circular plate 19. Two sets of stirring plates 21 are fixedly installed on the top of the outer wall of the first fixed rod 20. When the first rotating shaft 16 rotates, it drives the first bevel gear 17 and the second bevel gear 18 to mesh, which in turn drives the first fixed circular plate 19 and the first fixed rod 20 to rotate. The stirring plates 21 then agitate and discharge the material.

[0036] Specifically, such as Figure 1 , Figure 2 and Figure 4As shown, a first fixing plate 13 is fixedly installed at one end of the fixing sleeve 12, and a first servo motor 14 is fixedly installed on one outer wall of the first fixing plate 13. The output shaft of the first servo motor 14 is fixedly connected to one end of a set of first rotating shafts 16 via a coupling. When the first servo motor 14 is started, it drives the first rotating shafts 16 to rotate.

[0037] Based on the above, the structure of the extruder body 10, feed hopper 11, fixed sleeve 12, first fixed plate 13, first servo motor 14, first limiting ring plate 15, first rotating shaft 16, first bevel gear 17, second bevel gear 18, first fixed circular plate 19, first fixed rod 20 and stirring plate 21 achieves the purpose of stirring and conveying materials, reducing the situation of material clogging the discharge port, improving the processing efficiency of the device, and improving the stability of the device in use.

[0038] Example 3: Based on Examples 1 and 2, specifically as follows... Figure 1 , Figure 4 and Figure 7 As shown, a first sealing plate 22 is fixedly installed on one outer wall of the extruder body 10. Two sets of second rotating shafts 23 are rotatably installed on one outer wall of the first sealing plate 22. A threaded rod 25 is fixedly installed at one end of each second rotating shaft 23. Two sets of second servo motors 24 are fixedly installed on the other outer wall of the first sealing plate 22. The output shafts of the second servo motors 24 are fixedly connected to one end of the second rotating shaft 23 via couplings. When the second servo motors 24 are started, they drive the second rotating shafts 23 to rotate, which in turn drives the threaded rods 25 to rotate and output plastic granules.

[0039] Specifically, such as Figure 1 , Figure 4 and Figure 7 As shown, two sets of threaded rods 25 are disposed inside the first push plate 28. The outer wall of the first push plate 28 is in close contact with the inner wall of the extruder body 10. A discharge pipe is fixedly installed on the other outer wall of the extruder body 10. This allows the first push plate 28 to scrape off the plastic particles on the inner wall of the device.

[0040] In summary, the structure of the extruder body 10, the first sealing plate 22, the second rotating shaft 23, the second servo motor 24, the threaded rod 25, and the first push plate 28 achieves the purpose of rapid extrusion of plastic granules, improves the output efficiency of plastic granules, and optimizes the user experience of the device.

[0041] Working principle: The hydraulic cylinder 33 is activated, driving the hydraulic push rod 34 to extend and retract, pushing the second connecting plate 31 to move. This causes the first limiting sleeve 30 to move along the outer wall of the first guide plate 27, driving the first connecting plate 29 to move within the first limiting groove 26. Ultimately, this pushes the first push plate 28 to move inside the extruder body 10. The outer wall of the first push plate 28 is in close contact with the inner wall of the extruder body 10, scraping off plastic particles from the inner wall of the device, thus clearing the discharge path. The first guide plate 27 also limits and guides the first limiting sleeve 30. When raw materials are placed into the feed hopper 11, the first servo motor 14 is activated, driving the first rotating shaft 16 to rotate. Through the meshing transmission of the first bevel gear 17 and the second bevel gear 18, the first fixed circular plate 19 and the first fixed rod 20 rotate, thereby driving the stirring plate 21 to agitate and discharge the material. The second servo motor 24 is activated, driving the second rotating shaft 23 to rotate, thereby driving the threaded rod 25... The rotation outputs plastic granules.

[0042] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A feeder for a twin-screw extruder, characterized in that, include: The extruder body (10) is placed on the table. The unblocking structure includes a first unblocking part and a second unblocking part. The first unblocking part includes a first push plate (28) disposed inside the extruder body (10). A first connecting plate (29) is fixedly installed on the top of the first push plate (28). A first limiting sleeve (30) is fixedly installed on the top of the first connecting plate (29). A first limiting groove (26) is opened on the top inner side of the extruder body (10). A first guide plate (27) is fixedly installed inside the first limiting groove (26). The first limiting sleeve (30) is sleeved and installed on the outer wall of the first guide plate (27). The second unblocking part includes a second fixing plate (32) fixedly installed on the top of the extruder body (10). A hydraulic cylinder (33) is fixedly installed on one side of the outer wall of the second fixing plate (32). A second connecting plate (31) is fixedly installed on the top of the first limiting sleeve (30).

2. The twin-screw extruder feeder according to claim 1, characterized in that, The second unblocking part also includes a hydraulic push rod (34) disposed on one side of the outer wall of the second fixed plate (32). The output end of the hydraulic cylinder (33) is fixedly connected to one end of the telescopic inner rod of the hydraulic push rod (34), and the other end of the telescopic inner rod of the hydraulic push rod (34) is fixedly connected to one side of the outer wall of the second connecting plate (31).

3. The twin-screw extruder feeder according to claim 1, characterized in that, The top of the extruder body (10) has an opening, and a feed hopper (11) is fixedly installed inside the opening. A hole is opened on the outer wall of the feed hopper (11), and a fixing sleeve (12) is fixedly installed inside the hole. Two sets of first limiting ring plates (15) are fixedly installed inside the fixing sleeve (12), and a first rotating shaft (16) is rotatably installed inside the first limiting ring plate (15).

4. The twin-screw extruder feeder according to claim 3, characterized in that, One end of each of the two sets of first rotating shafts (16) is fixedly installed with a set of first bevel gears (17) and a set of second bevel gears (18), respectively. The first bevel gears (17) and the second bevel gears (18) mesh with each other. The other end of the set of first rotating shafts (16) is fixedly installed with a first fixed circular plate (19). The bottom of the first fixed circular plate (19) is fixedly installed with a first fixed rod (20). The top of the outer wall of the first fixed rod (20) is fixedly installed with two sets of stirring plates (21).

5. The twin-screw extruder feeder according to claim 3, characterized in that, A first fixing plate (13) is fixedly installed at one end of the fixing sleeve (12), and a first servo motor (14) is fixedly installed on one side of the outer wall of the first fixing plate (13). The output shaft of the first servo motor (14) is fixedly connected to one end of a set of first rotating shafts (16) through a coupling.

6. The twin-screw extruder feeder according to claim 1, characterized in that, A first sealing plate (22) is fixedly installed on one side of the outer wall of the extruder body (10). Two sets of second rotating shafts (23) are rotatably installed on one side of the outer wall of the first sealing plate (22). A threaded rod (25) is fixedly installed at one end of the second rotating shaft (23). Two sets of second servo motors (24) are fixedly installed on the other side of the outer wall of the first sealing plate (22). The output shaft of the second servo motor (24) is fixedly connected to one end of the second rotating shaft (23) through a coupling.

7. The twin-screw extruder feeder according to claim 6, characterized in that, The two sets of threaded rods (25) are located inside the first push plate (28). The outer wall of the first push plate (28) is in close contact with the inner wall of the extruder body (10). A discharge pipe is fixedly installed on the other side of the outer wall of the extruder body (10).

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