Anti-blocking hopper of extruder
By introducing a lifting mechanism and a screw feeding structure into the extruder hopper, the problems of hopper blockage and bridging are solved, achieving an anti-blocking effect in the hopper and ensuring the continuous operation of the extruder.
Patent Information
- Application Number
- CN202520217182.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-12
AI Technical Summary
Existing extruder hoppers are prone to clogging and bridging during feeding, affecting the continuity of the extruder.
An anti-clogging hopper was designed, comprising a hopper body, a lifting mechanism, and a pusher block. The lifting mechanism raises the pusher block to enter the discharge port to clear blockages, and the spiral feeding structure controls the feeding speed of plastic granules to reduce the occurrence of blockages.
It effectively unclogs the hopper outlet blockage, ensures continuous extrusion of the extruder, reduces blockage caused by the concentration of plastic particles, and improves the anti-clogging effect of the hopper.
Smart Images
Figure CN223821058U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of extruders, and in particular to an anti-clogging hopper for an extruder. Background Technology
[0002] A plastic extruder is a device used to process plastic raw materials into continuous shapes (such as pipes, sheets, films, etc.). It transforms solid plastic granules or powder into a molten state through heating, plasticizing, and extrusion, and then shapes them into the desired product using a die. Existing extruders often have poor anti-clogging performance during hopper feeding. When large quantities of plastic granules are fed at once, clogging and bridging easily occur at the bottom of the hopper, affecting the continuity of plastic extrusion. Utility Model Content
[0003] To address the aforementioned problems, this invention provides an anti-clogging hopper for an extruder, which has a good anti-clogging effect.
[0004] The technical solution of this utility model is as follows:
[0005] An anti-clogging hopper for an extruder, comprising:
[0006] The hopper body is funnel-shaped, with a feed inlet and a discharge outlet at the top and bottom, respectively, for feeding the extruder;
[0007] The mounting frame is located at the bottom of the hopper body;
[0008] The lifting mechanism is mounted on the mounting frame;
[0009] The push block is located at the top of the lifting mechanism and is aligned with the discharge port of the hopper body.
[0010] In a further technical solution, the discharge port of the hopper body is a hollow cylinder, and the pusher block matches the interior of the discharge port; the top of the pusher block is a frustum shape.
[0011] In a further technical solution, a first material passage is provided at the top center of the push block, and a second material passage is provided on both sides of the bottom of the push block, with the first material passage and the second material passage connected together.
[0012] In a further technical solution, the mounting frame includes a mounting plate and connecting columns. The connecting columns include multiple columns, with their two ends respectively connected to the bottom edge of the discharge port and the top edge of the mounting plate. The lifting mechanism is located in the middle of the mounting plate.
[0013] In a further technical solution, the lifting mechanism is an electric telescopic rod located in the middle of the mounting plate.
[0014] In a further technical solution, a spiral feeding structure is provided in the middle of the feed inlet of the hopper body. The spiral feeding structure includes a motor, a support plate, a rotating shaft, and spiral blades. The edge of the support plate is connected to the inner wall of the feed inlet. The motor is located in the middle of the support plate. One end of the rotating shaft is connected to the motor, and the other end extends into the hopper body. The spiral blades are located on the rotating shaft and match the inner side of the hopper body. The diameter of the spiral blades gradually decreases from the top to the bottom. The support plate is provided with a feed hole that communicates with the interior of the hopper body.
[0015] The beneficial effects of this utility model are:
[0016] 1. When the discharge port of the hopper body is blocked or bridging, the push block can be raised by the lifting mechanism and enter the discharge port from the bottom of the hopper body to quickly clear the discharge port. After clearing the block, the push block is reset, which is beneficial to the continuous extrusion of the extruder.
[0017] 2. The top of the pusher block is truncated cone-shaped, which facilitates the pusher block entering the discharge port. The pusher block is equipped with a first material passage and a second material passage. When the pusher block enters the discharge port to clear the flow, the plastic particles can also pass through the first material passage and the second material passage, which further facilitates the continuous extrusion of the extruder.
[0018] 3. The spiral feeding structure can slow down the feeding speed of plastic granules, allowing the plastic granules to be fed sequentially between the spiral blades, avoiding excessive concentration of plastic granules and reducing clogging and bridging. Attached Figure Description
[0019] Figure 1 This is a three-dimensional schematic diagram of an anti-clogging hopper for an extruder according to an embodiment of the present invention;
[0020] Figure 2 This is a cross-sectional schematic diagram of an anti-clogging hopper for an extruder according to an embodiment of the present invention;
[0021] Figure 3 This is a schematic diagram of the pusher block described in an embodiment of the present invention.
[0022] Explanation of reference numerals in the attached figures:
[0023] 10. Hopper body; 20. Lifting mechanism; 30. Push block; 31. First feed port; 32. Second feed port; 41. Mounting plate; 42. Connecting column; 51. Motor; 52. Support plate; 53. Rotating shaft; 54. Spiral blade; 55. Feed hole. Detailed Implementation
[0024] The embodiments of this utility model will be further described below with reference to the accompanying drawings.
[0025] Example:
[0026] like Figures 1-3 As shown, an anti-clogging hopper for an extruder includes a hopper body 10, a lifting mechanism 20, a pusher block 30, and a mounting frame. The hopper body 10 is funnel-shaped, with an inlet and an outlet at the top and bottom, respectively, for feeding the extruder. The mounting frame is installed at the bottom of the hopper body 10 and includes a mounting plate 41 and connecting columns 42. The connecting columns 42 include four columns, with their ends connected to the bottom edge of the outlet and the top edge of the mounting plate 41, respectively. The lifting mechanism 20 can be an electric telescopic rod, located in the middle of the mounting plate 41 without interfering with the normal operation of the extruder. The mounting plate 41 can be configured to tilt downwards from the middle to the edge, facilitating the continued fall of plastic particles onto the mounting plate 41 into the extruder. The pusher block 30 is located at the top of the lifting mechanism 20 and aligned with the outlet of the hopper body 10.
[0027] The working principle of the above technical solution is as follows:
[0028] When the discharge port of the hopper body 10 is blocked or bridging, the push block 30 can be raised by the lifting mechanism 20. The push block 30 enters the discharge port from the bottom of the hopper body 10 to quickly clear the discharge port. After clearing the discharge port, the push block 30 is reset, which facilitates the passage of plastic particles through the discharge port of the hopper body 10, and thus facilitates the continuous extrusion of the extruder.
[0029] In another embodiment, such as Figure 1-3 As shown, the discharge port of the hopper body 10 is a hollow cylinder, and the connection between the connecting column 42 and the hopper body 10 can be arbitrarily and easily disassembled; the push block 30 matches the interior of the discharge port; the top of the push block 30 is frustum-shaped, and the radius of the frustum-shaped part gradually increases from the top to the bottom, which is conducive to the push block 30 entering the discharge port; a first material passage 31 is provided in the middle of the top of the push block 30, and a second material passage 32 is provided on both sides of the bottom of the push block 30. The first material passage 31 is circular, and the second material passage 32 is an arc-shaped strip hole. The first material passage 31 and the second material passage 32 are connected to form a channel for plastic particles to pass through.
[0030] When the pusher block 30 enters the discharge port to clear the blockage, the plastic particles can also pass through the first feed port 31 and the second feed port 32, which further facilitates the continuous extrusion of the extruder. If the plastic particles form a blockage between the first feed port 31 and the second feed port 32, the lifting mechanism 20 can shake the blockage plastic particles when it lifts and lowers. If there are plastic particles that are really difficult to fall out, the hopper body 10 and the connecting column 42 can be disassembled for cleaning.
[0031] In another embodiment, such as Figure 1-2As shown, the feed inlet of the hopper body 10 is provided with a spiral feeding structure in the middle. The spiral feeding structure includes a motor 51, a support plate 52, a rotating shaft 53, and a spiral blade 54. The edge of the support plate 52 is connected to the inner wall of the feed inlet. The motor 51 is located in the middle of the support plate 52. One end of the rotating shaft 53 is connected to the motor 51, and the other end extends into the hopper body 10. The spiral blade 54 is located on the rotating shaft 53. The spiral blade 54 matches the inner side of the hopper body 10, and its diameter gradually decreases from the top to the bottom. The support plate 52 is provided with a feed hole 55 that connects to the inside of the hopper body 10.
[0032] Plastic granules enter the hopper body 10 through the feed hole 55. The motor 51 drives the rotating shaft 53 and the spiral blade 54 to rotate. The plastic granules entering the hopper body 10 are conveyed downwards in sequence by the rotating spiral blade 54 to avoid excessive concentration of plastic granules and reduce clogging and bridging.
[0033] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. An anti-clogging hopper for an extruder, characterized in that, include: The hopper body is funnel-shaped, with a feed inlet and a discharge outlet at the top and bottom, respectively, for feeding the extruder; The mounting frame is located at the bottom of the hopper body; The lifting mechanism is mounted on the mounting frame; The push block is located at the top of the lifting mechanism and is aligned with the discharge port of the hopper body; The discharge port of the hopper body is a hollow cylinder, and the push block matches the interior of the discharge port; the top of the push block is frustum-shaped. The pusher block has a first material passage in the middle of its top and a second material passage on both sides of its bottom, and the first and second material passages are connected.
2. The anti-clogging hopper for an extruder according to claim 1, characterized in that, The mounting frame includes a mounting plate and connecting columns. The connecting columns consist of multiple columns, with their ends connected to the bottom edge of the discharge port and the top edge of the mounting plate, respectively. The lifting mechanism is located in the middle of the mounting plate.
3. The anti-clogging hopper for an extruder according to claim 2, characterized in that, The lifting mechanism is an electric telescopic rod located in the middle of the mounting plate.
4. The anti-clogging hopper for an extruder according to claim 1, characterized in that, The hopper body has a spiral feeding structure in the middle of its feed inlet. The spiral feeding structure includes a motor, a support plate, a rotating shaft, and spiral blades. The edge of the support plate is connected to the inner wall of the feed inlet. The motor is located in the middle of the support plate. One end of the rotating shaft is connected to the motor, and the other end extends into the hopper body. The spiral blades are located on the rotating shaft and match the inner side of the hopper body. The diameter of the spiral blades gradually decreases from the top to the bottom. The support plate has a feed hole that communicates with the interior of the hopper body.