Extrusion device for plastic pipe processing
By installing an anti-clogging mechanism in the extrusion device for plastic pipe processing, and utilizing the cooperation of an eccentric wheel and a vibration spring to achieve up-and-down vibration of the hopper and stirring of the stirring rod, the problem of hopper clogging is solved and production efficiency is improved.
Patent Information
- Application Number
- CN202520183425.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-06
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-06
AI Technical Summary
Existing extrusion devices for plastic pipe processing are prone to clogging at the hopper discharge port, especially when the raw material is moving too fast or carrying clumps, resulting in low production efficiency and poor feeding.
An anti-clogging mechanism is installed between the feed inlet and the hopper, including a fixed frame, a vibration spring, a rotating roller, an eccentric wheel, and a stirring rod. The rotating roller is driven by a drive motor, and the eccentric wheel and the vibration spring work together to make the hopper vibrate up and down and the stirring rod stir, thus preventing clogging.
It effectively prevents hopper blockage, improves the smoothness of raw material feeding, enhances production efficiency, and avoids the need for manual unblocking.
Smart Images
Figure CN223835003U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of extrusion equipment, and in particular to an extrusion equipment for processing plastic pipes. Background Technology
[0002] Extruders are a type of plastics machinery. Based on the angle between the material flow direction at the die head and the screw centerline, extruder heads can be categorized into right-angle heads and angled heads, among others. Screw extruders rely on the pressure and shear force generated by the rotating screw to fully plasticize and uniformly mix the raw material, which is then shaped through a die. Plastic extruders can be broadly classified into twin-screw extruders, single-screw extruders, and less common multi-screw extruders and screwless extruders.
[0003] In existing technologies, extruders are often used in the production and processing of plastic pipes. Extruders can extrude plastic pipes into shapes during production. However, in actual use, existing extrusion devices often suffer from problems due to the simple structure of the hopper. When raw materials enter the hopper too quickly or in excessive amounts, blockages can easily occur at the hopper's discharge port. Furthermore, if the raw materials contain lumpy particles, they can also cause blockages at the hopper's discharge port when entering the feed port. Therefore, once a blockage occurs, operators need to stop the machine to clear it, which not only reduces work efficiency but also reduces the smoothness of raw material feeding during plastic pipe production. Utility Model Content
[0004] The main objective of this invention is to provide an extrusion device for processing plastic pipes, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] An extrusion device for processing plastic pipes includes an extruder and a feed inlet on the extruder. A hopper is provided on the top surface of the feed inlet. An anti-clogging mechanism is provided between the feed inlet and the hopper. The anti-clogging mechanism includes a fixed frame, a fixed rod, a vibration spring, an L-shaped support plate, a rotating roller, an eccentric wheel, a stirring rod, and a drive motor. The fixed frame is fixedly connected to the outer wall of the feed inlet, and the fixed rod is fixedly connected to the top surface of the fixed frame. The hopper is movably connected to the fixed rod through a connecting frame on the bottom outer wall. The vibration spring is sleeved on the outside of the fixed rod and fixedly connected between the fixed frame and the connecting frame. L-shaped support plates are fixedly connected to the front and rear ends of the fixed frame, respectively. The rotating roller is movably connected between the L-shaped support plates through rotating rods at both ends and passes through the hopper. Eccentric wheels are also fixedly connected to both ends of the outer wall of the rotating roller. Several stirring rods are fixedly connected to the outer wall of the rotating rod and located between the eccentric wheels. The drive motor is fixedly connected to the outer wall of one of the L-shaped support plates, and the output end of the drive motor is fixedly connected to the rotating rod.
[0007] Preferably, a connecting frame is fixedly installed on the bottom of the outer wall of the hopper, and connecting holes are respectively opened at the four corners of the top surface of the connecting frame. Vertical openings are also opened at the bottom of the front and rear walls of the hopper.
[0008] Preferably, the fixing frame is fixedly installed on the top of the outer wall of the feed inlet, and fixing rods are fixedly installed at the four corners of the top surface of the fixing frame. The fixing rods are inserted into the connecting holes, and a stop block is fixedly installed at the top of the fixing rods. The vibration spring is sleeved on the body of the fixing rods, and the vibration spring is also fixedly installed between the fixing frame and the connecting frame.
[0009] Preferably, L-shaped support plates are fixedly installed on the front and rear walls of the fixed frame, and a rotation hole is provided on the front wall of the L-shaped support plate.
[0010] Preferably, rotating rods are fixedly installed at the front and rear ends of the rotating roller, and the rotating rods are movably installed in the rotating hole. The rotating roller passes through the vertical opening, and eccentric wheels are fixedly installed on the outer walls of the front and rear ends of the rotating roller. The eccentric wheels are located outside the hopper. The drive motor is fixedly installed on the front wall of the front L-shaped support plate, and the output end of the drive motor is fixedly installed together with the front rotating rod.
[0011] Preferably, a plurality of stirring rods are fixedly installed on the outer wall of the rotating roller and between the eccentric wheels, and the stirring rods are located inside the hopper.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] In this invention, an anti-blocking mechanism is installed between the feed inlet and the hopper. When the drive motor is turned on, it drives the rotating roller to rotate via a rotating rod. During rotation, the eccentric wheel on the rotating roller strikes downwards and pushes the connecting frame through the connecting hole, causing the hopper to move downwards along the fixed rod. This forces the vibration spring to retract. When the eccentric wheel stops striking and pushing the connecting frame during rotation, the elastic force of the vibration spring causes the hopper to move upwards. This continuous up-and-down movement of the hopper vibrates and shakes the internal material, preventing blockages caused by excessive material in the hopper. Vibration also improves the smoothness of material entering the extruder through the feed inlet. Simultaneously, the stirring rod agitates the material at the hopper's discharge port during rotation, breaking up clumps and further preventing blockages. This gives the extruder an anti-blocking function during plastic pipe production, eliminating the need for manual shutdown and improving work efficiency. Attached Figure Description
[0014] Figure 1This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 For the present utility model Figure 1 Enlarged cross-sectional view of the structure at point A;
[0016] Figure 3 This is a schematic diagram of the overall structure of the hopper of this utility model;
[0017] Figure 4 This is a structural breakdown diagram of the anti-clogging mechanism of this utility model.
[0018] In the diagram: 1. Extruder; 2. Feed inlet; 3. Hopper; 4. Anti-clogging mechanism; 5. Connecting frame; 6. Connecting hole; 7. Vertical opening; 8. Fixing frame; 9. Fixing rod; 10. Vibration spring; 11. Stop block; 12. L-shaped support plate; 13. Rotating hole; 14. Rotating roller; 15. Rotating rod; 16. Eccentric wheel; 17. Stirring rod; 18. Drive motor. Detailed Implementation
[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0020] like Figure 1 - Figure 4 As shown, an extrusion device for processing plastic pipes includes an extruder 1 and a feed inlet 2 on the extruder 1. A hopper 3 is provided on the top surface of the feed inlet 2. An anti-blocking mechanism 4 is provided between the feed inlet 2 and the hopper 3. The anti-blocking mechanism 4 includes a fixed frame 8, a fixed rod 9, a vibration spring 10, an L-shaped support plate 12, a rotating roller 14, an eccentric wheel 16, a stirring rod 17, and a drive motor 18. The fixed frame 8 is fixedly connected to the outer wall of the feed inlet 2, and the fixed rod 9 is fixedly connected to the top surface of the fixed frame 8. The hopper 3 is movably connected to the fixed rod 9 through a connecting frame 5 on the bottom outer wall. The 0 is sleeved on the outside of the fixed rod 9 and fixedly connected between the fixed frame 8 and the connecting frame 5. The front and rear ends of the fixed frame 8 are respectively fixedly connected to L-shaped support plates 12, and the rotating roller 14 is movably connected between the L-shaped support plates 12 through the rotating rods 15 at both ends and passes through the hopper 3. The outer ends of the rotating roller 14 are also respectively fixedly connected to eccentric wheels 16, and the outer walls of the rotating rods 15 and located between the eccentric wheels 16 are fixedly connected to several stirring rods 17. The drive motor 18 is fixedly connected to the outer wall of one of the L-shaped support plates 12, and the output end of the drive motor 18 is fixedly connected to the rotating rod 15.
[0021] like Figure 3As shown, a connecting frame 5 is fixedly installed on the bottom of the outer wall of the hopper 3, and connecting holes 6 are respectively opened at the four corners of the top surface of the connecting frame 5. Vertical openings 7 are also opened at the bottom of the front and rear walls of the hopper 3. The hopper 3 can be movably installed on the top of the feed inlet 2 through the connecting holes 6 opened on the top surface of the connecting frame 5. The vertical openings 7 opened on the hopper 3 are used to cooperate with the rotating roller 14, so that the stirring rod 17 on the rotating roller 14 can move inside the hopper 3.
[0022] like Figure 4 As shown, the fixed frame 8 is fixedly installed on the top of the outer wall of the feed inlet 2, and fixed rods 9 are fixedly installed at the four corners of the top surface of the fixed frame 8. The fixed rods 9 are inserted into the connecting holes 6, and a stop block 11 is fixedly installed at the top of the fixed rods 9. The vibration spring 10 is fitted on the rod body of the fixed rods 9, and the vibration spring 10 is also fixedly installed between the fixed frame 8 and the connecting frame 5. When the connecting frame 5 is subjected to a periodic downward pushing force, the connecting frame 5 will move along the fixed rods 9 through the connecting holes 6, and force the vibration spring 10 to retract. The elastic force of the vibration spring 10 will push the connecting frame 5 to return the hopper 3 to its original position. The stop block 11 at the top of the fixed rods 9 can prevent the connecting frame 5 from moving off the fixed rods 9, so that the hopper 3 can move up and down and generate vibration. By continuously vibrating the raw material in the hopper 3, the problem of excessive raw material in the hopper 3 and blockage can be avoided. During the continuous vibration, the raw material can smoothly enter the extruder 1 through the feed inlet 2.
[0023] like Figure 4 As shown, L-shaped support plates 12 are fixedly installed on the front and rear walls of the fixed frame 8, and a rotating hole 13 is provided on the front wall of the L-shaped support plate 12. The rotating hole 13 on the L-shaped support plate 12 is used to cooperate with the rotating rod 15 to realize the rotation operation.
[0024] like Figure 4 As shown, rotating rods 15 are fixedly installed at the front and rear ends of the rotating roller 14, and the rotating rods 15 are movably installed in the rotating hole 13. The rotating roller 14 passes through the vertical opening 7, and eccentric wheels 16 are fixedly installed on the outer walls of the front and rear ends of the rotating roller 14. The eccentric wheels 16 are located outside the hopper 3. The drive motor 18 is fixedly installed on the front wall of the front L-shaped support plate 12, and the output end of the drive motor 18 is fixedly installed together with the rotating rod 15 at the front end. When the drive motor 18 is turned on, the drive output end drives the rotating rod 15 to rotate in the rotating hole 13. The rotating rod 15 will drive the rotating roller 14 passing through the vertical opening 7 to rotate. The rotating roller 14 will drive the eccentric wheels 16 installed at the front and rear ends of the outer wall to rotate. During the rotation, the eccentric wheels 16 provide a downward periodic squeezing force and a release force on the connecting frame 5, so as to cooperate with the vibration spring 10 to make the hopper 3 vibrate up and down to prevent the raw materials from getting blocked in the hopper 3.
[0025] like Figure 4 As shown, several stirring rods 17 are fixedly installed on the outer wall of the rotating roller 14 and between the eccentric wheels 16. The stirring rods 17 are located inside the hopper 3. Driven by the rotation of the rotating roller 14, the stirring rods 17 will stir the two raw materials entering the feed inlet in the feed port of the hopper 3, and break up the lumpy raw materials during the stirring process to prevent the lumpy raw materials from causing blockage inside the hopper 3.
[0026] It should be noted that this utility model is an extrusion device for processing plastic pipes. When extruding plastic pipes into the extruder 1, when the plastic raw material is fed into the hopper 3, the drive motor 18 installed on the front wall of the L-shaped support plate 12 in front of the fixed frame 8 is turned on. The drive motor 18 drives the rotating rod 15 to rotate in the rotating hole 13 opened on the L-shaped support plate 12. The rotating rod 15 drives the rotating roller 14 passing through the vertical opening 7 to rotate. When the rotating roller 14 rotates, it drives the eccentric wheel 16 installed at the front and rear ends of the outer wall to rotate. During the continuous rotation, the eccentric wheel 16 hits and pushes the connecting frame 5 installed on the hopper 3 downward. The connecting frame 5 moves downward through the connecting hole 6 opened on the top surface along the fixed rod 9 installed on the top surface of the fixed frame 8, and forces the vibration spring 10, which is fitted outside the fixed rod 9 and fixed between the connecting frame 5 and the fixed frame 8, to retract. After the eccentric wheel 16 rotates, it no longer pushes the connecting frame 5 downward. During extrusion, the hopper 3 moves upward through the connecting frame 5 under the elastic restoring force of the vibration spring 10, and returns to its original position under the limiting action of the stop block 11 installed at the top of the fixed rod 9. Thus, by applying periodic thrust and releasing the thrust to the connecting frame 5 as the eccentric wheel 16 rotates continuously, and in conjunction with the elastic retraction and extension of the vibration spring 10, the hopper 3 can move up and down continuously and generate shaking and vibration. After shaking the material inside the hopper 3, the problem of blockage caused by excessive material in the hopper 3 can be avoided. At the same time, driven by the rotation of the rotating roller 14, the stirring rod 17 will stir the material entering the feed inlet 2 in the feed port of the hopper 3, and break up the lumpy material during the stirring process, which can further prevent the lumpy material from causing blockage inside the hopper 3. Thus, the extruder 1 has the function of preventing blockage during the production of plastic pipes, eliminating the need for manual shutdown for unblocking and improving work efficiency.
[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, various improvements can be made to it without departing from the scope of the present utility model, and components can be replaced with equivalents or some technical features can be replaced with equivalents. All such improvements within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An extrusion apparatus for processing plastic pipes, comprising an extruder (1) and a feed inlet (2) provided on the extruder (1), wherein a hopper (3) is provided on the top surface of the feed inlet (2), characterized in that: An anti-blocking mechanism (4) is provided between the feed inlet (2) and the hopper (3), and the anti-blocking mechanism (4) includes a fixed frame (8), a fixed rod (9), a vibration spring (10), an L-shaped support plate (12), a rotating roller (14), an eccentric wheel (16), a stirring rod (17), and a drive motor (18). The fixed frame (8) is fixedly connected to the outer wall of the feed inlet (2), and the fixed rod (9) is fixedly connected to the top surface of the fixed frame (8). The hopper (3) is movably connected to the fixed rod (9) through a connecting frame (5) on the bottom outer wall, and the vibration spring (10) is sleeved on the outside of the fixed rod (9) and fixedly connected to the fixed frame (8). Between the fixed frame (8) and the connecting frame (5), L-shaped support plates (12) are fixedly connected to the front and rear ends of the fixed frame (8), and the rotating roller (14) is movably connected between the L-shaped support plates (12) and passes through the hopper (3) through the rotating rods (15) at both ends. Eccentric wheels (16) are also fixedly connected to the outer ends of the rotating roller (14), and several stirring rods (17) are fixedly connected to the outer walls of the rotating rods (15) and between the eccentric wheels (16). The drive motor (18) is fixedly connected to the outer wall of one of the L-shaped support plates (12), and the output end of the drive motor (18) is fixedly connected to the rotating rod (15).
2. The extrusion apparatus for processing plastic pipes according to claim 1, characterized in that: A connecting frame (5) is fixedly installed on the bottom of the outer wall of the hopper (3), and connecting holes (6) are respectively opened at the four corners of the top surface of the connecting frame (5). Vertical openings (7) are also opened at the bottom of the front and rear walls of the hopper (3).
3. The extrusion apparatus for processing plastic pipes according to claim 2, characterized in that: The fixed frame (8) is fixedly installed on the top of the outer wall of the feed inlet (2), and fixed rods (9) are fixedly installed at the four corners of the top surface of the fixed frame (8). The fixed rods (9) are inserted into the connecting hole (6), and a stop block (11) is fixedly installed at the top of the fixed rod (9). The vibration spring (10) is fitted on the rod of the fixed rod (9), and the vibration spring (10) is also fixedly installed between the fixed frame (8) and the connecting frame (5).
4. The extrusion apparatus for processing plastic pipes according to claim 3, characterized in that: L-shaped support plates (12) are fixedly installed on the front and rear walls of the fixed frame (8), and a rotating hole (13) is provided on the front wall of the L-shaped support plate (12).
5. The extrusion apparatus for processing plastic pipes according to claim 4, characterized in that: Rotating rods (15) are fixedly installed at the front and rear ends of the rotating roller (14), and the rotating rods (15) are movably installed in the rotating hole (13). The rotating roller (14) passes through the vertical opening (7), and eccentric wheels (16) are fixedly installed on the outer walls of the front and rear ends of the rotating roller (14). The eccentric wheels (16) are located outside the hopper (3). The drive motor (18) is fixedly installed on the front wall of the front L-shaped support plate (12), and the output end of the drive motor (18) is fixedly installed together with the rotating rod (15) at the front end.
6. The extrusion apparatus for processing plastic pipes according to claim 5, characterized in that: Several stirring rods (17) are fixedly installed on the outer wall of the rotating roller (14) and between the eccentric wheels (16), and the stirring rods (17) are located inside the hopper (3).