Novel plastic granule extruder
By introducing a sliding connecting bucket and a gear and rack mechanism into the plastic pellet extruder, the screw fouling can be quickly removed, solving the problem of cumbersome disassembly in the existing technology and improving cleaning efficiency.
Patent Information
- Application Number
- CN202522756267.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-26
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-12-26
AI Technical Summary
The existing plastic pellet extruder requires the removal of the feed hopper when cleaning the screw inside the barrel, which is a cumbersome process and cannot be moved directly, making cleaning inconvenient.
The design of the sliding connecting bucket allows it to move horizontally on the cylinder. The sliding plate moves through the meshing of gears and racks, exposing the discharge port and enabling quick disassembly of the screw without removing the bolts.
It simplifies the screw cleaning process, improves disassembly efficiency, reduces disassembly steps, and facilitates quick screw cleaning.
Smart Images

Figure CN223864266U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a plastic particle extruder, concretely to a novel plastic particle extruder, belongs to plastic particle extruder technical field. BACKGROUND
[0002] The plastic particle extruder is a kind of mechanical equipment that plastic raw materials (such as granules, powder or recycled materials) are extruded into continuous profiles or granulated after melting by the rotation, heating and shearing action of screw rod, and the working principle of plastic particle extruder is mainly based on the rotary motion of screw rod. After the plastic raw materials enter the extruder from the hopper, they move forward under the rotation of the screw rod and gradually get heated and melted. The design of screw rod is usually divided into several areas, including feeding area, compression area, melting area and metering area, and each area has different treatment methods for plastic raw materials to ensure that the plastic can be uniformly melted and reach the required pressure and temperature. Finally, the melted plastic is extruded through the head and die to form the required shape, such as pipe, rod, profile or granules, etc.
[0003] The current plastic particle extruder has some dirt sticking to the screw rod inside the cylinder after being used for a period of time, and the dirt on the screw rod inside the cylinder needs to be cleaned. When cleaning, the lower hopper needs to be disassembled to expose the screw rod, and the screw rod is slowly pried out with a crowbar. The lower hopper and the cylinder are usually fixed with screws, and the lower hopper needs to be disassembled every time the screw rod is disassembled. The lower hopper cannot be directly moved on the cylinder, and it is quite cumbersome to disassemble the screws every time the screw rod is cleaned. UTILITY MODEL CONTENTS
[0004] The utility model aims to solve the above problems by providing a novel plastic particle extruder, which installs the connecting hopper on the cylinder by sliding. When the dirt on the surface of the screw rod needs to be cleaned, the connecting hopper can be quickly translated to expose the screw rod without disassembling the screws, which facilitates the quick disassembly of the screw rod.
[0005] The utility model realizes the above-mentioned purposes through the following technical solutions: a novel plastic particle extruder, including base and its fixed frame installed on the base, driving mechanism, the fixed frame is installed with conveying mechanism, the conveying mechanism includes the cylinder installed on the fixed frame, the cylinder is equipped with filter mechanism, lower outlet, the cylinder is installed with moving mechanism, the moving mechanism includes fixed plate, the lateral wall of the cylinder is fixedly connected with fixed plate, the cylinder is oppositely installed with two slide rails, the slide rail and fixed plate are welded between, two the slide rails and cylinder are slidably connected with slide plate, the surface opening of slide plate is installed with connecting hopper, the bottom of slide plate is equipped with slide groove, the bottom of slide plate is fixedly connected with rack at slide groove, the bottom of fixed plate is rotatably connected with shaft, the shaft is keyed with gear, the gear and rack are engaged.
[0006] Preferably, the bottom of the slide plate has two opposing grooves, and each of the two grooves is equipped with a rack. The rotating shaft has two gears, and the two gears mesh with the two racks respectively.
[0007] Preferably, the moving mechanism further includes a bracket, and a bracket is installed between the fixed plate and the cylinder, the bracket having a Y-shaped structure.
[0008] Preferably, the moving mechanism further includes a crank handle, and one end of the rotating shaft is fixedly connected to the crank handle.
[0009] Preferably, the conveying mechanism further includes screws, and two screws are rotatably connected inside the cylinder, with the two screws meshing with each other.
[0010] Preferably, the drive mechanism includes a drive component, which is mounted on the base. A gearbox is mounted on the base, and the gearbox is connected to the drive component. The output end of the gearbox is connected to two screws via a coupling.
[0011] Preferably, a filter mechanism is installed on one side of the cylinder. The filter mechanism includes a fixed frame. A fixed frame is installed at the end of the cylinder. A second driving component is installed on the fixed frame. An installation plate is installed at the telescopic end of the second driving component. The installation plate is slidably connected to the fixed frame. Two filter screens are installed on the installation plate. A hopper is installed on the side wall of the fixed frame.
[0012] Preferably, the cylinder body is provided with a reserved opening and an exhaust port.
[0013] Preferably, the cylinder is provided with a protective cover, which is equidistantly disposed on the cylinder.
[0014] The beneficial effects of this utility model are: if the surface dirt of the conveying component needs to be cleaned after long-term use, it is not necessary to determine whether there is material inside the feeding hopper on the connecting bucket. The circumferential rotation realizes the rotation of the shaft, and further realizes the movement of the rack at the bottom of the slide plate driven by the gear on the shaft. At this time, due to the meshing of the gear and the rack, the slide plate is driven to slide inside the slide rail as the gear rotates. When the slide plate moves the connecting bucket to the top of the fixed plate, the discharge port is exposed. At this time, the two conveying components can be pried off by a pry bar to disassemble them without removing the screws at the connecting bucket. The connecting bucket can be quickly moved horizontally, which facilitates the disassembly and cleaning of the conveying components. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the connection structure of the cylinder, support and fixing plate of this utility model;
[0017] Figure 3 This is a schematic diagram of the connection structure of the connecting bucket, sliding plate and slide rail of this utility model;
[0018] Figure 4 This is a schematic diagram of the connection structure of the cylinder, the discharge port and the screw of this utility model;
[0019] Figure 5 This is a schematic diagram of the connection structure of the fixing plate, the sliding groove and the rack of this utility model;
[0020] Figure 6 This is a schematic diagram of the connection structure of the bracket, slide plate, rack and gear of this utility model.
[0021] In the diagram: 1. Base; 2. Drive mechanism; 201. Drive component one; 202. Gearbox; 3. Conveying mechanism; 301. Cylinder; 302. Screw; 4. Moving mechanism; 401. Connecting hopper; 402. Fixing plate; 403. Bracket; 404. Slide rail; 405. Slide plate; 406. Slide groove; 407. Rotating shaft; 408. Rack; 409. Gear; 410. Handle; 5. Protective cover; 6. Reserved opening; 7. Exhaust port; 8. Fixing frame; 9. Filtering mechanism; 901. Fixing frame; 902. Drive component two; 903. Mounting plate; 904. Filter screen; 905. Discharge hopper; 10. Discharge port. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figures 1-6As shown, a novel plastic granule extruder includes a base 1 and a fixed frame 8 mounted on the base 1, a drive mechanism 2, a conveying mechanism 3 mounted on the fixed frame 8, and a cylinder 301 mounted on the fixed frame 8. The cylinder 301 is provided with a filter mechanism 9 and a discharge port 10. A moving mechanism 4 is mounted on the cylinder 301, and the moving mechanism 4 includes a fixed plate 402. The fixed plate 402 is fixedly connected to the side wall of the cylinder 301, and two slide rails 40 are mounted opposite each other on the cylinder 301. 4. The slide rail 404 is welded to the fixed plate 402. The two slide rails 404 are slidably connected to the cylinder 301 by a slide plate 405. A connecting bucket 401 is installed on the slide plate 405 with an opening on its surface. A groove 406 is opened at the bottom of the slide plate 405. A rack 408 located at the groove 406 is fixedly connected to the bottom of the slide plate 405. A rotating shaft 407 is rotatably connected to the bottom of the fixed plate 402. A gear 409 is keyed to the rotating shaft 407. The gear 409 meshes with the rack 408.
[0024] As a technical optimization of this utility model, two sliding grooves 406 are provided on the bottom of the slide plate 405, and racks 408 are installed inside the two sliding grooves 406. Two gears 409 are provided on the rotating shaft 407, and the two gears 409 mesh with the two racks 408 respectively, so that the slide plate 405 slides more smoothly.
[0025] As a technical optimization of this utility model, the moving mechanism 4 also includes a bracket 403. The bracket 403 is installed between the fixed plate 402 and the cylinder 301. The bracket 403 has a Y-shaped structure, which increases the supporting force of the fixed plate 402 and makes the connecting bucket 401 more stable after it moves.
[0026] As a technical optimization of this utility model, the moving mechanism 4 also includes a crank handle 410. One end of the rotating shaft 407 is fixedly connected to the crank handle 410, which facilitates the rotation of the rotating shaft 407 and saves effort.
[0027] As a technical optimization of this utility model, the conveying mechanism 3 also includes a screw 302. Two screws 302 are rotatably connected inside the cylinder 301. The two screws 302 mesh with each other to realize the conveying of materials.
[0028] As a technical optimization of this utility model, the drive mechanism 2 includes a drive component 201, the drive component 201 is mounted on the base 1, the gearbox 202 is mounted on the base 1, the gearbox 202 is connected to the drive component 201, and the output end of the gearbox 202 is connected to the two screws 302 through a coupling to realize the same-direction drive of the two screws 302.
[0029] As a technical optimization of this utility model, a filter mechanism 9 is installed on one side of the cylinder 301. The filter mechanism 9 includes a fixed frame 901. The fixed frame 901 is installed at the end of the cylinder 301. A second driving component 902 is installed on the fixed frame 901. An installation plate 903 is installed at the telescopic end of the second driving component 902. The installation plate 903 is slidably connected to the fixed frame 901. Two filter screens 904 are installed on the installation plate 903. A hopper 905 is installed on the side wall of the fixed frame 901. After the material is extruded, the filter screens 904 filter out the metal debris inside. The second driving component 902 can control the installation plate 903 to pull and replace the filter screens 904.
[0030] As a technical optimization of this utility model, the cylinder 301 is provided with a reserved opening 6 and an exhaust port 7, which facilitates exhaust and pressure relief during production.
[0031] As a technical optimization of this utility model, a protective cover 5 is provided on the cylinder 301. The protective cover 5 is equidistantly arranged on the cylinder 301 to protect the cylinder 301 and avoid burns.
[0032] When using this utility model, first check whether the base 1 is placed stably to ensure that the equipment is stable and free from shaking. Prepare suitable plastic raw materials according to production needs, ensuring the materials are free of impurities and moisture. Connect the power supply and start the drive unit 201 (motor). The drive unit 201 transmits power to the two screws 302 through the gearbox 202, causing the two screws 302 to rotate in the same direction, thus beginning the material conveying process. Add the prepared plastic raw materials into the cylinder 301 through the feed port 10. As the screws 302 rotate, the material is gradually conveyed forward. The material is heated and melted inside the cylinder 301. After being conveyed and extruded in 301, the material passes through filter screen 904. Impurities such as metal shavings in the material are filtered and intercepted by filter screen 904. The material is discharged from hopper 905 to the next process. When filter screen 904 has been used for a period of time, if it needs to be replaced (there are two filter screens 904 on mounting plate 903), drive component 2 902 can be started. The telescopic end of drive component 2 902 drives mounting plate 903 to slide on fixed frame 901, pull out mounting plate 903 with used filter screen 904, and then push mounting plate 903 with new filter screen 904 into fixed frame 901 to complete the replacement of filter screen 904 without stopping the machine. Then, during the production process, the material inside the cylinder 301 may generate gas, which can be vented through the exhaust port 7 on the cylinder 301 to relieve pressure and ensure normal operation of the equipment. The protective covers 5 evenly spaced on the cylinder 301 can protect the cylinder 301 and prevent operators from being burned by the cylinder 301 during production. Finally, if the screw 302 needs to be cleaned after long-term use due to surface dirt, it is not necessary to check whether there is material inside the feeding hopper on the connecting bucket 401. Hold the crank handle 410 and rotate the crank handle 410 to rotate the shaft 407, which in turn drives the two gears 409 on the shaft 407 to drive the slide plate 40. 5. When the two racks 408 at the bottom move, the gear 409 meshes with the rack 408. As the gear 409 rotates, the slide plate 405 slides inside the slide rail 404. When the slide plate 405 moves the connecting bucket 401 above the fixed plate 402, the discharge port 10 is exposed. At this time, the two screws 302 can be pried off by a pry bar. The connecting bucket 401 can be quickly moved horizontally without removing the screws at the connecting bucket 401, which facilitates the removal and cleaning of the screws 302. After cleaning, the reverse crank 410 is reversed to reset the gear 409 and the rack 408. At this time, the slide plate 405 moves above the discharge port 10 to continue discharging.
[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A novel plastic pellet extruder, comprising a base (1) and a fixed frame (8) mounted on the base (1) and a drive mechanism (2), wherein a conveying mechanism (3) is mounted on the fixed frame (8), the conveying mechanism (3) comprising a cylinder (301) mounted on the fixed frame (8), and the cylinder (301) being provided with a filter mechanism (9) and a discharge port (10), characterized in that: A moving mechanism (4) is installed on the cylinder (301). The moving mechanism (4) includes a fixed plate (402). The fixed plate (402) is fixedly connected to the side wall of the cylinder (301). Two slide rails (404) are installed opposite to each other on the cylinder (301). The slide rails (404) are welded to the fixed plate (402). A sliding plate (405) is slidably connected between the two slide rails (404) and the cylinder (301). A connecting bucket (401) is installed on the sliding plate (405) with an opening on its surface. A groove (406) is opened at the bottom of the sliding plate (405). A rack (408) located at the groove (406) is fixedly connected to the bottom of the sliding plate (405). A rotating shaft (407) is rotatably connected to the bottom of the fixed plate (402). A gear (409) is keyed to the rotating shaft (407). The gear (409) meshes with the rack (408).
2. The novel plastic pellet extruder according to claim 1, characterized in that: The slide plate (405) has two opposite slide grooves (406) at the bottom, and each of the two slide grooves (406) is equipped with a rack (408). The rotating shaft (407) has two gears (409), and the two gears (409) mesh with the two racks (408) respectively.
3. The novel plastic pellet extruder according to claim 1, characterized in that: The moving mechanism (4) also includes a bracket (403), and a bracket (403) is installed between the fixed plate (402) and the cylinder (301). The bracket (403) has a Y-shaped structure.
4. The novel plastic pellet extruder according to claim 1, characterized in that: The moving mechanism (4) also includes a crank handle (410), and one end of the rotating shaft (407) is fixedly connected to the crank handle (410).
5. A novel plastic pellet extruder according to claim 1, characterized in that: The conveying mechanism (3) also includes screws (302), and two screws (302) are rotatably connected inside the cylinder (301), and the two screws (302) mesh with each other.
6. A novel plastic pellet extruder according to claim 5, characterized in that: The drive mechanism (2) includes a drive component (201), the drive component (201) is mounted on the base (1), the gearbox (202) is mounted on the base (1), the gearbox (202) is connected to the drive component (201), and the output end of the gearbox (202) is connected to two screws (302) through a coupling.
7. A novel plastic pellet extruder according to claim 1, characterized in that: A filter mechanism (9) is installed on one side of the cylinder (301). The filter mechanism (9) includes a fixed frame (901). A fixed frame (901) is installed at the end of the cylinder (301). A second drive component (902) is installed on the fixed frame (901). An installation plate (903) is installed at the telescopic end of the second drive component (902). The installation plate (903) is slidably connected to the fixed frame (901). Two filter screens (904) are installed on the installation plate (903). A hopper (905) is installed on the side wall of the fixed frame (901).
8. A novel plastic pellet extruder according to claim 1, characterized in that: The cylinder (301) is provided with a reserved opening (6) and an exhaust port (7).
9. A novel plastic pellet extruder according to claim 1, characterized in that: The cylinder (301) is provided with a protective cover (5), which is equidistantly arranged on the cylinder (301).