Anti-blocking plastic particle twin-screw extruder

Abstract

The utility model discloses a kind of anti-clogging plastic particle double-screw extruders, including bottom plate, support plate, shell, feed inlet, discharge port, blanking structure, knock structure;The bottom plate upper end both sides are fixedly connected with support plate, two The support plate upper end is fixedly connected with shell, the shell upper end one side is fixedly connected with feed inlet, the shell lower end one side is fixedly connected with discharge port, the feed inlet one side is connected with blanking structure, the bottom plate upper end is connected with knock structure.The utility model is compared with prior art's advantage lies in: not only uniform, but also avoid discharge port blockage.

Description

Technical Field

[0001] This utility model relates to the technical field of twin-screw extruders, specifically an anti-clogging twin-screw extruder for plastic particles. Background Technology

[0002] Twin-screw extruders are a type of plastics machinery, originating in the 18th century. Based on the angle between the material flow direction at the die head and the screw centerline, twin-screw extruders can be classified into right-angle die heads and angled die heads, among others. Twin-screw extruders rely on the pressure and shear force generated by the rotating screw to fully plasticize and uniformly mix the material, which is then shaped through a die.

[0003] Patent CN214926916U discloses a twin-screw extruder, including a housing. A heating chamber is fixedly installed on the upper right side of the housing, and a feed inlet is fixedly installed in the middle of the upper end of the heating chamber, with the lower end of the feed inlet communicating with the heating chamber. A second screw is installed inside the heating chamber, and the right end of the second screw passes through the heating chamber and connects to a driven wheel. A belt is installed on the driven wheel, and a driving wheel is installed at the lower end of the belt. Both the driving wheel and the driven wheel are rotatably connected to the belt. The material is conveyed to the feed inlet by the conveyor belt. This design solves the problem of manual material conveying, improves the efficiency of material conveying, saves labor costs, enables continuous, high-efficiency, and large-angle conveying, is safe to operate, easy to use, and easy to maintain. It can also shorten the transportation distance, reduce project costs, and save manpower and resources. The heating chamber heats, melts, and stirs the material transported by the conveyor belt, which solves the problem of material compatibility.

[0004] However, existing patents have the following drawbacks:

[0005] (1) In the operation of the prior art, uneven feeding may cause blockage of the extruder outlet, requiring the machine to be stopped for cleaning, which is very inconvenient. Summary of the Invention

[0006] The technical problem to be solved by this utility model is to overcome the above-mentioned technical defects and provide a twin-screw extruder for plastic particles that can not only feed materials evenly, but also avoid clogging at the discharge port.

[0007] To solve the above problems, the technical solution of this utility model is: a clog-resistant twin-screw extruder for plastic particles, including a bottom plate, a support plate, a shell, a feed port, a discharge port, a feeding structure, and a striking structure;

[0008] Preferably, the upper sides of the base plate are fixedly connected to support plates, the upper sides of the two support plates are fixedly connected to a housing, the upper side of the housing is fixedly connected to a feed inlet, the lower side of the housing is fixedly connected to a discharge outlet, the feed inlet is connected to a feeding structure, and the upper side of the base plate is connected to a striking structure.

[0009] Furthermore, the feeding structure includes a support frame, a motor fixedly connected to the upper end of the support frame, a rotating shaft at the output end of the motor, a turntable at one end of the rotating shaft, a lever at the edge of the surface of one end of the turntable, a partition at one end of the feed inlet, the partition being inserted into the feed inlet, a connecting plate at one end of the partition, a sliding groove at one end of the connecting plate, the lever being located inside the sliding groove, and a limiting ring sleeved on the surface of the lever.

[0010] Furthermore, the striking structure includes a protective box, inside which a second bracket is fixedly installed. A horizontal plate is provided between two second brackets, and a second rotating shaft is rotatably installed between the two second brackets. A second motor is provided at one end of each second bracket. A groove is provided on the surface of the second rotating shaft. A sliding rod is slidably installed inside the groove. A swing rod is sleeved on the surface of the sliding rod. A sector gear is provided at the other end of the swing rod. A rack is slidably installed inside the protective box, and a striking hammer is provided at one end of the rack.

[0011] Furthermore, the second bracket and the horizontal plate form an H-shape, the output end of the second motor is fixedly connected to the second rotating shaft, the grooves are distributed in an S-shape on the surface of the second rotating shaft, the swing rod is connected to the horizontal plate at one end of the sector gear, and the rack meshes with the sector gear.

[0012] Furthermore, a transmission box is provided at one end of the housing, a motor is provided at one end of the transmission box, and extrusion screws are symmetrically arranged inside the housing.

[0013] The advantages of this invention compared to existing technologies are as follows:

[0014] (1) The motor of this utility model drives the turntable to rotate through the rotating shaft, and the lever moves up and down inside the slide groove. At the same time, the lever drives the slide groove to move back and forth, so that the partition can slide back and forth inside the feed port, and can control the plastic particles to be fed into the shell at even intervals.

[0015] (2) The second motor of this utility model drives the rotating shaft to rotate, so that the swing rod swings back and forth around the hinge of the horizontal plate. Under the drive of the swing of the sector gear, the rack slides up and down, driving the hammer to continuously strike the lower end of the shell, thus avoiding blockage at the discharge port. Attached Figure Description

[0016] Figure 1 This utility model relates to a three-dimensional anti-clogging twin-screw extruder for plastic particles. Figure 1 .

[0017] Figure 2 This utility model relates to a three-dimensional anti-clogging twin-screw extruder for plastic particles. Figure 2 .

[0018] Figure 3 This is an enlarged view of point A of a twin-screw extruder for anti-clogging plastic particles according to this utility model.

[0019] Figure 4 This is a schematic diagram of the striking structure of a twin-screw extruder for preventing clogging of plastic particles according to this utility model.

[0020] Figure 5 This is a schematic diagram of the internal extrusion screw of a twin-screw extruder for anti-clogging plastic particles according to this utility model.

[0021] As shown in the figure: 1. Base plate; 2. Support plate; 3. Shell; 4. Feed inlet; 5. Discharge outlet; 6. Feeding structure; 7. Striking structure; 8. Bracket 1; 9. Motor 1; 10. Shaft 1; 11. Turntable; 12. Lever; 13. Partition plate; 14. Connecting plate; 15. Slide groove; 16. Limiting ring; 17. Protective box; 18. Bracket 2; 19. Horizontal plate; 20. Shaft 2; 21. Motor 2; 22. Groove; 23. Slide rod; 24. Swing rod; 25. Gear; 26. Rack; 27. Striking hammer; 28. Transmission box; 29. ​​Motor 3; 30. Extrusion screw. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0023] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0024] To make the content of this utility model easier to understand, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0025] like Figures 1 to 5 As shown, a clog-resistant twin-screw extruder for plastic particles includes a base plate 1 that contacts the ground. Support plates 2 are fixedly installed on both sides of the upper end of the base plate 1. A housing 3 is fixedly installed on the upper end of the two support plates 2. The housing 3 is the main structure of the twin-screw extruder. A transmission box 28 is installed at one end of the housing 3, and a motor 29 is installed at the other end of the transmission box 28. Extrusion screws 30 are symmetrically installed inside the housing 3. The motor 29 can synchronously control the rotation of the two extrusion screws 30 through the transmission box 28.

[0026] A feed inlet 4 is fixedly installed on one side of the upper end of the housing 3. The feed inlet 4 is used to put plastic particles into the interior of the housing 3. A feeding structure 6 is installed on one side of the feed inlet 4. The feeding structure 6 includes a bracket 8. The bracket 8 is in contact with the ground. A motor 9 is fixedly installed on the upper end of the bracket 8. A rotating shaft 10 is installed at the output end of the motor 9. The motor 9 can drive the rotating shaft 10 to rotate. A turntable 11 is installed at one end of the rotating shaft 10. A lever 12 is installed at the edge of the surface of one end of the turntable 11. The rotating shaft 10 drives the turntable 11 and the lever 12 to rotate.

[0027] A limiting ring 16 is fixedly installed on the surface of the lever 12. The slide 15 is located between the limiting ring 16 and the turntable 11. The lever 12 is inserted into the slide 15. A connecting plate 14 is installed at one end of the slide 15, and a partition 13 is installed at the other end of the connecting plate 14. The partition 13 is slidably inserted into the feed inlet 4.

[0028] When motor 9 starts and drives shaft 10 to rotate, shaft 10 drives turntable 11 to rotate. The lever 12 rotates with turntable 11, so the lever 12 moves up and down inside the chute 15. At the same time, the lever 12 drives the chute 15 to move left and right under the restriction of partition 13 and feed port 4, so that partition 13 can slide back and forth inside feed port 4. This can control the plastic particles to be fed into the shell 1 at even intervals, avoiding the extruder from being blocked by too many plastic particles entering at once.

[0029] A discharge port 5 is fixedly installed on one side of the lower end of the shell 3. The processed plastic particles flow out from the discharge port 5. A striking structure 7 is installed on the upper end of the base plate 1. The striking structure 7 can strike the lower end of the shell 3 to prevent plastic particles from clogging at the discharge port 5 and affecting the discharge.

[0030] The striking structure 7 includes a protective box 17, which is installed on the upper end of the base plate 1. The protective box 17 is used to protect the internal structure. A second bracket 18 is fixedly installed inside the protective box 17. A horizontal plate 19 is installed between the two second brackets 18. The second brackets 18 and the horizontal plate 19 form an H-shape. A rotatable shaft 20 is installed between the two second brackets 18. A second motor 21 is installed at one end of the second bracket 18. The output end of the second motor 21 is fixedly connected to the shaft 20. The second motor 21 can drive the shaft 20 to rotate. A groove 22 is opened on the surface of the shaft 20. The groove 22 is distributed in an S-shape on the surface of the shaft. A sliding rod 23 is installed inside the groove 22. A swing rod 24 is sleeved on the surface of the sliding rod 23. A sector gear 25 is installed at the other end of the swing rod 24. The connection between the swing rod 24 and the sector gear 25 is hinged to the horizontal plate 19.

[0031] When motor 21 drives shaft 20 to rotate, slide rod 23 slides inside groove 22, causing swing rod 24 to swing back and forth around the hinge of cross plate 19, thereby driving sector gear 25 to swing back and forth with swing rod 24. Inside protective box 17, rack 26 that can slide up and down is installed. Hammer 27 is installed at one end of rack 26. Rack 26 meshes with sector gear 25. Driven by sector gear 25, rack 26 slides up and down, driving hammer 27 to continuously strike the lower end of housing 3, preventing blockage at discharge port 5.

[0032] In practical use, motor 29 can synchronously control the rotation of two extrusion screws 30 through transmission box 28, and feed material into the housing 3 through feed port 4. Motor 9 starts and drives shaft 10 to rotate, shaft 10 drives turntable 11 to rotate, and lever 12 rotates with turntable 11, so lever 12 moves up and down inside slide 15. At the same time, lever 12 drives slide 15 to move left and right under the restriction of partition 13 and feed port 4, so that partition 13 can slide back and forth inside feed port 4, and plastic particles can be fed into the housing 1 at uniform intervals.

[0033] Motor 21 drives shaft 20 to rotate, slide rod 23 slides inside groove 22, causing swing rod 24 to swing back and forth around the hinge of cross plate 19, thereby driving sector gear 25 to swing back and forth with swing rod 24. Driven by sector gear 25, rack 26 slides up and down, driving hammer 27 to continuously strike the lower end of housing 3, preventing blockage at discharge port 5.

[0034] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A twin-screw extruder for preventing clogging of plastic particles, characterized in that: Includes base plate (1), support plate (2), shell (3), feed port (4), discharge port (5), feeding structure (6), and striking structure (7); The base plate (1) is fixedly connected to the support plates (2) on both sides of the upper end. The two support plates (2) are fixedly connected to the housing (3) on the upper end. The housing (3) is fixedly connected to the feed inlet (4) on one side of the upper end. The housing (3) is fixedly connected to the discharge outlet (5) on one side of the lower end. The feed inlet (4) is connected to the feeding structure (6) on one side. The base plate (1) is connected to the striking structure (7).

2. The anti-clogging twin-screw extruder for plastic particles according to claim 1, characterized in that: The feeding structure (6) includes a bracket (8), a motor (9) is fixedly connected to the upper end of the bracket (8), a rotating shaft (10) is provided at the output end of the motor (9), a turntable (11) is provided at one end of the rotating shaft (10), a lever (12) is provided at the edge of the surface of one end of the turntable (11), a partition (13) is provided at one end of the feed port (4), the partition (13) is inserted into the feed port (4), a connecting plate (14) is provided at one end of the partition (13), a sliding groove (15) is provided at one end of the connecting plate (14), the lever (12) is located inside the sliding groove (15), and a limiting ring (16) is sleeved on the surface of the lever (12).

3. The anti-clogging twin-screw extruder for plastic particles according to claim 1, characterized in that: The striking structure (7) includes a protective box (17), inside which a second bracket (18) is fixedly provided, and a horizontal plate (19) is provided between the two second brackets (18). A rotating shaft (20) is rotatably provided between the two second brackets (18). A motor (21) is provided at one end of the second bracket (18). A groove (22) is provided on the surface of the rotating shaft (20). A sliding rod (23) is slidably provided inside the groove (22). A swing rod (24) is sleeved on the surface of the sliding rod (23). A sector gear (25) is provided at the other end of the swing rod (24). A rack (26) is slidably provided inside the protective box (17). A hammer (27) is provided at one end of the rack (26).

4. The anti-clogging twin-screw extruder for plastic particles according to claim 3, characterized in that: The bracket (18) and the cross plate (19) form an H-shape. The output end of the motor (21) is fixedly connected to the rotating shaft (20). The groove (22) is distributed in an S-shape on the surface of the rotating shaft. The swing rod (24) is connected to the sector gear (25) and one end is hinged to the cross plate (19). The rack (26) meshes with the sector gear (25).

5. The anti-clogging twin-screw extruder for plastic particles according to claim 1, characterized in that: The housing (3) is provided with a transmission box (28) at one end, and a motor (29) is provided at one end of the transmission box (28). The housing (3) is provided with extrusion screws (30) symmetrically inside.

Images