Anti-jamming extruder

Abstract

The application discloses an anti-blocking extruder and relates to the technical field of extruders. The anti-blocking extruder comprises a cylinder, a screw and a feeding unit. The cylinder is provided with a feeding box in communication with the inside of the cylinder. The feeding box is provided with an annular tooth groove slide. The screw is rotatably installed on the cylinder and is connected with a power source. The feeding unit comprises a driving shaft, variable-pitch blades and a rotating shaft. The driving shaft is rotatably installed on the feeding box and is connected with a driving mechanism. The driving shaft is provided with a fixed cylinder and is provided below with a filtering mechanism. The variable-pitch blades are installed on the driving shaft. A material breaking plate is installed on the rotating shaft and is matched with the slide and the fixed cylinder through a connecting assembly. The rotating shaft can adopt a fixed connection or a double-cylinder structure driven by a planetary gear set. The material arch is broken through the revolution and rotation of the material breaking plate. The feeding arch bridging and filter hole blocking problems can be effectively solved through the self-cleaning of the filtering disc and the variable-pitch feeding structure, so that the continuous and smooth feeding of the extruder is ensured.

Description

Technical Field

[0001] This invention relates to the field of extruder technology, specifically to an anti-clogging extruder. Background Technology

[0002] Extruders are core equipment in plastic molding and processing. During production, plastic granules are fed into the barrel through the feed box to complete melting and plasticization. Existing materials generally use initial material and recycled material. Due to the friction of the plastic granules themselves and the influence of recycled material, the material is prone to forming a bridging structure in the feed box, resulting in poor material flow or even blockage. Usually, a material breaking and stirring structure is required to maintain stable feeding. The reliability of continuous production of the whole machine is highly dependent on the anti-blocking performance of the feed.

[0003] In the prior art with publication number CN218053702U, there have been attempts to integrate the stirring anti-clogging structure into the extruder feeding device. The stirring shaft is driven by a motor to rotate, and the stirring rod is used to stir the material in the feeding pipe to avoid clogging. Although this structure has achieved the anti-clogging function to a certain extent, it still has obvious shortcomings. The single-axis fixed-axis rotation mixing method results in a fixed and monotonous mixing trajectory, which cannot directly impact the weak points of the material arch. It has limited effectiveness in breaking up bridging for highly viscous and easily agglomerated materials, making it difficult to reliably eliminate the risk of feed blockage. The mixing structure itself has assembly gaps, and plastic particles can easily get stuck in the gaps between the mixing shaft and the supporting components. Long-term operation can easily form new blockage points, affecting the smooth flow of materials. Without a feed filter and filter hole cleaning structure, lumps and impurities mixed in with the material can easily enter the barrel with the material. There is no online cleaning mechanism, which can easily cause subsequent flow channels or screw blockage, requiring frequent shutdowns for cleaning. Summary of the Invention

[0004] The purpose of this invention is to provide a clog-resistant extruder to solve the problems mentioned in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an anti-clogging extruder, comprising a barrel, a screw, and a feeding unit, wherein the barrel is provided with a feeding box communicating with the interior, and a slide is provided inside the feeding box; the screw is rotatably installed inside the barrel, and the screw is connected to the output end of a power source, such as an electric motor or electric motor, for driving the screw to rotate; The feeding unit includes a drive shaft, variable pitch blades, and a rotating shaft. The drive shaft is rotatably mounted on the feeding box. One end of the drive shaft is connected to the output end of a drive mechanism, which is a motor, electric motor, etc. The other end of the drive shaft is provided with several fixed cylinders. A filter mechanism is installed below the drive shaft. The drive mechanism is mounted on the feeding box. The variable-pitch blades are mounted on the drive shaft; A crushing plate is installed on the rotating shaft, and the rotating shaft is connected to the slide and the fixed cylinder respectively through connecting components.

[0006] The slide is an annular toothed groove with internal teeth; The connecting assembly includes a transmission gear that meshes with internal teeth on an annular tooth groove. The transmission gear is mounted on a rotating shaft, which is rotatably connected to a fixed cylinder.

[0007] The rotating shaft includes a first rotating cylinder and a second rotating cylinder. The first rotating cylinder is mounted on the second rotating cylinder, the transmission gear is mounted on the first rotating cylinder, and the second rotating cylinder is rotatably connected to the fixed cylinder. There are two material breaking plates, which are respectively installed on the first rotating cylinder and the second rotating cylinder.

[0008] The rotating shaft includes a first rotating cylinder and a second rotating cylinder, which are connected by a planetary gear set. The transmission gear is mounted on the first rotating cylinder, and the second rotating cylinder is rotatably connected to the fixed cylinder. There are two material breaking plates, which are respectively installed on the first rotating cylinder and the second rotating cylinder.

[0009] The planetary gear set includes a ring gear, planetary gears, a planet carrier, and a sun gear. The ring gear is mounted on a second rotating cylinder, and the sun gear is mounted on a first rotating cylinder. Multiple planetary gears are provided, and the interior and exterior of the multiple planetary gears mesh with the sun gear and the ring gear, respectively. The multiple planetary gears are rotatably mounted on the planet carrier, and the planet carrier is mounted on a fixed cylinder via a connecting rod, thereby fixing the planet carrier on the fixed cylinder.

[0010] The material breaking plate includes a material breaking cylinder and several material breaking plates. The material breaking cylinder is respectively installed on a first rotating cylinder and a second rotating cylinder, and the several material breaking plates are installed on the material breaking cylinder. Each material breaking plate is provided with a material breaking blade.

[0011] It also includes a sealing mechanism, which includes a sealing ring. The sealing ring is installed on several first rotating cylinders. The feed box is provided with an annular sealing groove corresponding to the position of the sealing ring. The sealing ring is embedded in the annular sealing groove and forms a rotating sealing connection. The sealing ring rotates synchronously with the first rotating cylinder, which does not affect the revolution of the crushing unit and can effectively prevent dust and fine particles from overflowing from the rotation gap, ensuring a clean operating environment for the equipment. At the same time, it avoids material getting stuck in the rotation gap and causing the mechanism to jam.

[0012] The filtration mechanism includes a lever and a filter disc. The lever is mounted on a drive shaft, and the filter disc is mounted on a feed box. The filter disc is located below the lever. A roller is mounted on the lever, and a sliding hole is provided on the roller. A cleaning component is slidably installed in the sliding hole. An elastic element, which is a spring, connects the cleaning component and the roller.

[0013] When the drive mechanism drives the drive shaft to rotate, the drive shaft drives the lever to rotate, the lever drives the roller to rotate, and the roller drives several cleaning parts to rotate accordingly. When the cleaning component aligns with the holes on the filter disc during rotation, the elastic component pushes the cleaning component into the holes of the filter disc, pushing out the material inside the holes of the filter disc and discharging it from the outlet of the feed box into the barrel. As the cleaning component moves away from the holes on the filter disc during rotation, the filter disc squeezes the cleaning component into the sliding hole, and the cleaning component compresses the elastic component at the same time. As the drum continues to rotate, the cleaning components are alternately inserted into the holes of the filter disc to clean the filter disc and ensure normal filtration effect.

[0014] A collection hood is installed on the outside of the variable-pitch blades. The collection hood is mounted on the feed box and has a conical longitudinal section. The variable-pitch blades are spirally distributed, and the pitch of the variable-pitch blades gradually decreases from the inlet to the outlet of the feed box. The variable-pitch blades and the conical longitudinal section of the collection hood form a gradually narrowing conveying channel. The material is compacted and pushed at a uniform speed during the falling process, avoiding the formation of suspended material arches in the middle of the feed box and reducing the probability of bridging and blockage from the source of feeding. At the same time, the variable-pitch conveying can perform preliminary compression and crushing of agglomerated materials, reducing the workload of the subsequent crushing unit.

[0015] The barrel is equipped with several recovery plates, each containing a metal plate and two semiconductors of different materials. One end of each semiconductor is connected to a metal plate, and both semiconductors are electrically connected to the control system via wires. The metal plate and the two semiconductors form the hot end of the Seebeck effect, while the cold end is located outside the extruder. The hot end is warmer than the cold end. The hot and cold ends generate current through the Seebeck effect, which is then transmitted to the control system via wires. The control system processes this current through rectification and other methods before using it for the daily operation of the extruder, thereby reducing the extruder's energy consumption.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. Compound motion breaks up material bridging and prevents blockage. The drive shaft drives the fixed cylinder and the rotating shaft to revolve as a whole. At the same time, the transmission gear meshes with the annular internal tooth groove of the feed box, causing the rotating shaft to drive the crushing plate to rotate on its own axis while revolving around the center of gravity. This creates a compound motion of revolution and rotation. This motion allows the crushing plate to directly impact the weak points of the material bridging, effectively breaking up and eliminating the material bridging structure in the feed box. This solves the problem of poor crushing effect and inability to break up material bridging, which leads to blockage in the feed, and ensures continuous and smooth material flow.

[0017] 2. Bidirectional shearing and mixing enhances anti-clogging capabilities. A planetary gear set is installed between the first and second rotating drums, with the planetary carrier fixed to the fixed drum. When the transmission gear drives the first rotating drum to rotate forward, the second rotating drum rotates in the opposite direction through the transmission cooperation of the sun gear, planetary gears, and gear ring. This causes the two crushing plates to rotate synchronously in both directions, creating a bidirectional shearing and mixing effect within the feed box in conjunction with the overall revolution. This structure can disperse materials more evenly and thoroughly, solving the problem of difficulty in fully dispersing highly viscous and easily agglomerated materials, which easily causes feed blockage, and further improving the anti-clogging performance of the equipment.

[0018] 3. Self-cleaning filter holes ensure normal filtration effect. The drive shaft drives the lever and drum to rotate synchronously. The cleaning component is slidably installed inside the drum through an elastic element. As the drum rotates, the cleaning component alternately aligns with and inserts into the filter holes of the filter disc, pushing out the material stuck in the holes. When it rotates away from the filter holes, it is pressed back into the drum sliding hole by the surface of the filter disc. This structure can continuously clean the filter holes during equipment operation, solving the problem of the filter structure being easily blocked by material, requiring shutdown for cleaning and affecting production efficiency, and ensuring long-term stable filtration effect. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the feed box structure in this invention; Figure 3 This is a schematic diagram of the variable pitch blade in this invention; Figure 4 This is a schematic diagram of the slide structure in this invention; Figure 5 This is a schematic diagram of the lever structure in this invention; Figure 6 This is a schematic diagram of the cleaning component in this invention; Figure 7 This is a schematic diagram of the structure of Embodiment 2 of the present invention; Figure 8 This is a schematic diagram of the structure of Embodiment 3 of the present invention; Figure 9 This is a schematic diagram of the structure of the second rotating cylinder in this invention; Figure 10This is a schematic diagram of the structure of the first rotating cylinder in this invention; Figure 11 yes Figure 10 A magnified view of a portion of region A in the middle; Figure 12 This is a schematic diagram of the sun gear in this invention.

[0020] In the diagram: 1. Barrel; 11. Feed box; 111. Slide rail; 2. Screw; 3. Feeding unit; 31. Drive shaft; 311. Drive mechanism; 312. Fixed cylinder; 32. Variable pitch blade; 33. Rotating shaft; 331. First rotating cylinder; 332. Second rotating cylinder; 333. Planetary gear set; 3331. Gear ring; 3332. Planetary gear; 3333. Planetary carrier; 3334. Sun gear; 34. Connecting assembly; 341. Transmission gear; 35. Sealing mechanism; 351. Sealing ring; 4. Filtering mechanism; 41. Actuator; 42. Filter disc; 43. Drum; 44. Cleaning component; 5. Crushing plate; 51. Crushing disc; 52. Crushing cylinder. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figures 1-6 As shown in the figure, Embodiment 1 of the present invention provides a technical solution for an extruder that can prevent clogging.

[0023] The specific content of Embodiment 1 is as follows: It includes a barrel 1, a screw 2, and a feeding unit 3. The barrel 1 is provided with a feeding box 11 that communicates with the interior. The feeding box 11 is provided with a slide rail 111. The screw 2 is rotatably installed in the barrel 1. The screw 2 is connected to the output end of a power source, such as a motor or electric motor, to drive the screw 2 to rotate. The feeding unit 3 includes a drive shaft 31, variable pitch blades 32, and a rotating shaft 33. The drive shaft 31 is rotatably installed on the feeding box 11. One end of the drive shaft 31 is connected to the output end of a drive mechanism 311, such as a motor or electric motor. The other end of the drive shaft 31 is provided with several fixed cylinders 312. A filter mechanism 4 is installed below the drive shaft 31. The drive mechanism 311 is installed on the feeding box 11. The variable pitch blades 32 are installed on the drive shaft 31. A crushing plate 5 is installed on the rotating shaft 33. The rotating shaft 33 is connected to the slide rail 111 and the fixed cylinders 312 respectively through a connecting assembly 34.

[0024] The slide 111 is an annular toothed groove with internal teeth; the connecting assembly 34 includes a transmission gear 341, which meshes with the internal teeth on the annular toothed groove. The transmission gear 341 is mounted on the rotating shaft 33, which is rotatably connected to the fixed cylinder 312.

[0025] The crushing plate 5 includes a crushing cylinder 51 and several crushing blades 52. The crushing cylinder 51 is installed on the first rotating cylinder 331 and the second rotating cylinder 332 respectively. Several crushing blades 52 are installed on the crushing cylinder 51, and the crushing blades 52 are provided with crushing blades.

[0026] It also includes a sealing mechanism 35, which includes a sealing ring 351. The sealing ring 351 is installed on several first rotating cylinders 331. The feed box 11 is provided with an annular sealing groove corresponding to the position of the sealing ring 351. The sealing ring 351 is embedded in the annular sealing groove and forms a rotating sealing connection.

[0027] The filtration mechanism 4 includes a lever 41 and a filter disc 42. The lever 41 is mounted on the drive shaft 31, and the filter disc 42 is mounted on the feed box 11. The filter disc 42 is located below the lever 41. A roller 43 is mounted on the lever 41. A sliding hole is provided on the roller 43. A cleaning element 44 is slidably installed in the sliding hole. An elastic element, which is a spring, is connected between the cleaning element 44 and the roller 43. The cleaning element 44 is an elastic ball or a rigid metal ball. The diameter of the cleaning element 44 is smaller than the aperture of the filter disc 42.

[0028] When the drive mechanism 311 drives the drive shaft 31 to rotate, the drive shaft 31 drives the lever 41 to rotate, the lever 41 drives the roller 43 to rotate, and the roller 43 drives several cleaning parts 44 to rotate accordingly. When the cleaning component 44 aligns with the hole on the filter disc 42 during rotation, the elastic component pushes the cleaning component 44 into the hole of the filter disc 42, pushes out the material in the hole of the filter disc 42, and discharges it from the outlet of the feed box 11 into the barrel 1. As the cleaning element 44 moves away from the holes on the filter disc 42 during rotation, the filter disc 42 squeezes the cleaning element 44 into the sliding hole, and the cleaning element 44 simultaneously compresses the elastic element. As the drum 43 continues to rotate, the cleaning components 44 are alternately inserted into the holes of the filter disc 42 to clean the filter disc 42 and ensure normal filtration effect.

[0029] A collection hood is installed on the outside of the variable-pitch blades 32. The collection hood is mounted on the feed box 11. The longitudinal section of the collection hood is conical. The variable-pitch blades 32 are spirally distributed. The pitch of the variable-pitch blades 32 gradually decreases from the inlet to the outlet of the feed box 11. The material enters from the end with the larger diameter of the collection hood, and after being conveyed by the rotation of the variable-pitch blades 32, it is discharged from the end with the smaller diameter of the collection hood and enters the barrel 1. The variable-pitch blades 32 and the collection hood with the conical longitudinal section form a gradually narrowing conveying channel. The material is compacted and pushed at a uniform speed during the falling process, which avoids the formation of suspended material arches in the middle of the feed box 11 by loose material, and reduces the probability of bridging and blocking from the source of feeding. At the same time, the variable-pitch conveying can perform preliminary crushing and compression of agglomerated materials, reducing the workload of the subsequent crushing unit.

[0030] Several recovery plates are installed on the barrel 1, which are located on one side of the temperature control plate. Each recovery plate has a metal plate and two semiconductors of different materials. One end of each semiconductor is connected to the metal plate, and the two semiconductors are electrically connected to the control system via wires. The metal plate and the two semiconductors form the hot end of the Seebeck effect, while the cold end is located outside the extruder. The temperature of the hot end is higher than that of the cold end. The hot and cold ends generate current through the Seebeck effect and transmit it to the control system via wires. The control system processes this current through rectification and other means before using it for the daily operation of the extruder, thereby reducing the energy consumption of the extruder.

[0031] The barrel 1 is equipped with a temperature control element, which includes a temperature sensor and a temperature control board. Both the temperature sensor and the temperature control board are electrically connected to the control system. The temperature control board is a resistance heating plate. The resistance heating plate generates heat when energized. Based on the data from the temperature sensor, the heating effect of the resistance heating plate is adjusted so that the material reaches the set temperature and avoids the temperature from being too high or too low.

[0032] like Figure 7 As shown, in Embodiment 2 of the present invention, a rotating shaft 33 is provided to fix the first rotating cylinder 331 and the second rotating cylinder 332 together, so that the breaking plate 5 can realize a compound motion of revolution and rotation to break up the bridging structure and maintain smooth material feeding.

[0033] The specific content of Embodiment 2 is as follows: The rotating shaft 33 includes a first rotating cylinder 331 and a second rotating cylinder 332. The first rotating cylinder 331 is mounted on the second rotating cylinder 332, and the transmission gear 341 is mounted on the first rotating cylinder 331. The second rotating cylinder 332 is rotatably connected to the fixed cylinder 312. Two crushing plates 5 are provided, and the two crushing plates 5 are respectively mounted on the first rotating cylinder 331 and the second rotating cylinder 332.

[0034] The drive mechanism 311 drives the drive shaft 31 to rotate, which in turn drives several fixed cylinders 312 to rotate. The fixed cylinders 312 drive the second rotating cylinder 332 to revolve. Since the first rotating cylinder 331 and the second rotating cylinder 332 are fixedly installed, the second rotating cylinder 332 drives the first rotating cylinder 331 to follow the revolution. The first rotating cylinder 331 drives the transmission gear 341 to revolve. Since the transmission gear 341 meshes with the internal teeth of the annular tooth groove, the transmission gear 341 rotates on its own axis while revolving. The transmission gear 341 simultaneously drives the crushing plate 5 to revolve and rotate on its own axis, and the crushing plate 5 breaks up the material. The compound motion of the crushing plate 5 is achieved through the meshing of the gear and the tooth groove. The crushing plate 5 can directly impact the weak points of the material arch, effectively breaking up the bridging structure, ensuring smooth material discharge, and has a simple structure and reliable operation.

[0035] like Figures 8-12 As shown, in Embodiment 3 of the present invention, an optimized design is made based on Embodiment 2. The first rotating cylinder 331 and the second rotating cylinder 332 are connected by a planetary gear set 333, so that the two crushing plates 5 on the first rotating cylinder 331 and the second rotating cylinder 332 can respectively achieve forward rotation and reverse rotation, and combine with revolution to improve the material dispersing effect and enhance the effect of breaking up material bridging.

[0036] The specific content of Embodiment 3 is as follows: The rotating shaft 33 includes a first rotating cylinder 331 and a second rotating cylinder 332. The first rotating cylinder 331 and the second rotating cylinder 332 are connected by a planetary gear set 333. The transmission gear 341 is installed on the first rotating cylinder 331, and the second rotating cylinder 332 is rotatably connected to the fixed cylinder 312. Two crushing plates 5 are provided, and the two crushing plates 5 are respectively installed on the first rotating cylinder 331 and the second rotating cylinder 332.

[0037] The drive mechanism 311 drives the drive shaft 31 to rotate, the drive shaft 31 drives several fixed cylinders 312 to rotate, and the fixed cylinders 312 drive the second rotating cylinder 332 to revolve. Since the first rotating cylinder 331 and the second rotating cylinder 332 are connected by a planetary gear set 333, the second rotating cylinder 332 drives the first rotating cylinder 331 to follow and revolve synchronously. When the first rotating drum 331 drives the transmission gear 341 to revolve, the transmission gear 341 meshes with the internal teeth of the annular tooth groove, so the transmission gear 341 rotates on its own axis while revolving around the center. The transmission gear 341 drives the first rotating drum 331 to rotate synchronously in the forward direction. The first rotating drum 331 drives the second rotating drum 332 to rotate in the opposite direction through the planetary gear set 333. The two crushing plates 5 on the first rotating drum 331 and the second rotating drum 332 rotate in the forward direction and in the reverse direction, respectively. The two crushing plates 5 rotate simultaneously in opposite directions, and together with the overall revolution, they form a bidirectional shearing and stirring effect in the feed box 11. The material is broken up more evenly and thoroughly. Even when encountering materials with high viscosity or easy agglomeration, the flow can be kept smooth, and the anti-clogging performance is further improved.

[0038] The planetary gear set 333 includes a gear ring 3331, planet gears 3332, a planet carrier 3333, and a sun gear 3334. The gear ring 3331 is mounted on a second rotating cylinder 332, and the sun gear 3334 is mounted on a first rotating cylinder 331. Multiple planet gears 3332 are provided, and the interior and exterior of the multiple planet gears 3332 mesh with the sun gear 3334 and the gear ring 3331, respectively. The multiple planet gears 3332 are rotatably mounted on the planet carrier 3333, and the planet carrier 3333 is mounted on a fixed cylinder 312 through a connecting rod, so that the planet carrier 3333 is fixed on the fixed cylinder 312.

[0039] Working principle: When the extruder is working, the power source drives the screw 2 to rotate inside the barrel 1 so that the material continuously enters the barrel 1 for extrusion molding; While the screw 2 is rotating, the staff automatically feeds the material into the feed box 11 through the external feeding equipment to achieve automatic continuous feeding. The control system controls the drive mechanism 311 to work. The drive mechanism 311 drives the drive shaft 31 to rotate. The drive shaft 31 drives the variable pitch blade 32 to rotate. The variable pitch blade 32 rotates and conveys the material. The material is compacted and pushed at a uniform speed. At the same time, the agglomerated material is initially squeezed and broken. After preliminary processing, the material falls into the crushing area. The drive shaft 31 simultaneously drives several fixed cylinders 312 to rotate synchronously. The fixed cylinders 312 drive the rotating shaft 33 to revolve around the axis of the drive shaft 31. The transmission gear 341 revolves synchronously with the rotating shaft 33 and meshes with the inner teeth of the annular tooth groove of the slide 111 to generate rotation. This drives the rotating shaft 33 and the crushing plate 5 to achieve a compound motion of revolution and rotation. The crushing plate 5 impacts and disperses the material through the crushing blades 52 with crushing blades on the crushing cylinder 51, breaking the bridging structure and maintaining smooth material feeding. After being dispersed, the material enters the barrel 1 from the outlet of the feed box 11. The screw 2 and the barrel 1 work together to extrude and convey the material. The material passes through the feeding section, the compression section and the metering section in sequence, completing the complete physical process of conveying, melting and plasticizing, and homogenizing and constant pressure extrusion. Finally, a uniform and stable melt is output, which is the basis for extrusion of pipes, films, profiles, granulation and other processes.

[0040] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A clog-resistant extruder, characterized in that: It includes a barrel (1), a screw (2) and a feeding unit (3). The barrel (1) is provided with a feeding box (11) that communicates with the interior. The feeding box (11) is provided with a slide (111). The screw (2) is rotatably installed inside the barrel (1). The screw (2) is connected to the output end of a power source. The feeding unit (3) includes a drive shaft (31), variable pitch blades (32) and a rotating shaft (33). The drive shaft (31) is rotatably mounted on the feed box (11). One end of the drive shaft (31) is connected to the output end of the drive mechanism (311). The other end of the drive shaft (31) is provided with several fixed cylinders (312). A filter mechanism (4) is installed below the drive shaft (31). The variable pitch blade (32) is mounted on the drive shaft (31); The rotating shaft (33) is equipped with a crushing plate (5), and the rotating shaft (33) is connected to the slide (111) and the fixed cylinder (312) respectively through the connecting assembly (34).

2. The anti-clogging extruder according to claim 1, characterized in that: The slide (111) is an annular toothed groove with internal teeth; The connecting assembly (34) includes a transmission gear (341) that meshes with the internal teeth on the annular tooth groove. The transmission gear (341) is mounted on a rotating shaft (33), which is rotatably connected to a fixed cylinder (312).

3. The anti-clogging extruder according to claim 2, characterized in that: The rotating shaft (33) includes a first rotating cylinder (331) and a second rotating cylinder (332). The first rotating cylinder (331) is mounted on the second rotating cylinder (332). The transmission gear (341) is mounted on the first rotating cylinder (331). The second rotating cylinder (332) is rotatably connected to the fixed cylinder (312). There are two material breaking plates (5), which are respectively installed on the first rotating cylinder (331) and the second rotating cylinder (332).

4. The anti-clogging extruder according to claim 2, characterized in that: The rotating shaft (33) includes a first rotating cylinder (331) and a second rotating cylinder (332). The first rotating cylinder (331) and the second rotating cylinder (332) are connected by a planetary gear set (333). The transmission gear (341) is mounted on the first rotating cylinder (331). The second rotating cylinder (332) is rotatably connected to the fixed cylinder (312). There are two material breaking plates (5), which are respectively installed on the first rotating cylinder (331) and the second rotating cylinder (332).

5. The anti-clogging extruder according to claim 4, characterized in that: The planetary gear set (333) includes a gear ring (3331), planetary gears (3332), a planet carrier (3333), and a sun gear (3334). The gear ring (3331) is mounted on a second rotating cylinder (332), and the sun gear (3334) is mounted on a first rotating cylinder (331). Multiple planetary gears (3332) are provided. The interior and exterior of the multiple planetary gears (3332) mesh with the sun gear (3334) and the gear ring (3331), respectively. The multiple planetary gears (3332) are rotatably mounted on the planet carrier (3333), and the planet carrier (3333) is mounted on a fixed cylinder (312) via a connecting rod.

6. A clog-resistant extruder according to claim 3 or 4, characterized in that: The material breaking plate (5) includes a material breaking cylinder (51) and several material breaking plates (52). The material breaking cylinder (51) is installed on the first rotating cylinder (331) and the second rotating cylinder (332) respectively. Several material breaking plates (52) are installed on the material breaking cylinder (51). The material breaking plates (52) are provided with material breaking blades.

7. A clog-resistant extruder according to claim 3 or 4, characterized in that: It also includes a sealing mechanism (35), which includes a sealing ring (351). The sealing ring (351) is installed on several first rotating cylinders (331). The feed box (11) is provided with an annular sealing groove corresponding to the position of the sealing ring (351). The sealing ring (351) is embedded in the annular sealing groove and forms a rotating sealing connection.

8. The anti-clogging extruder according to claim 1, characterized in that: The filtration mechanism (4) includes a lever (41) and a filter disc (42). The lever (41) is mounted on a drive shaft (31), and the filter disc (42) is mounted on a feed box (11). A roller (43) is mounted on the lever (41), and a sliding hole is provided on the roller (43). A cleaning component (44) is slidably installed in the sliding hole, and an elastic element connects the cleaning component (44) and the roller (43).

9. The anti-clogging extruder according to claim 1, characterized in that: A collection cover is installed on the outside of the variable pitch blade (32). The collection cover is installed on the feed box (11). The longitudinal section of the collection cover is conical. The variable pitch blade (32) is spirally distributed. The pitch of the variable pitch blade (32) gradually decreases from the inlet to the outlet of the feed box (11).

10. A clog-resistant extruder according to claim 1, characterized in that: The barrel (1) is provided with several recycling plates. The recycling plates are provided with metal plates and two semiconductors of different materials. One end of each semiconductor of different materials is connected to the metal plate. The two semiconductors of different materials are electrically connected to the control system through wires.

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