Regenerated plastic particle raw material filtering device
By using an inclined filter screen frame and a rotating stirring plate structure, the problems of filter plate accumulation and clogging are solved, achieving efficient filtration and convenient cleaning, and improving the working efficiency of the recycled plastic particle filtration device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI LONGFA NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-15
AI Technical Summary
In existing plastic particle filtration devices, the horizontal placement of the filter plate leads to particle accumulation and easy clogging of the filter pores, affecting the filtration effect and efficiency, and the filter plate is not easy to disassemble and clean.
The filter screen is installed by tilting and the rotating stirring plate structure. Combined with the double-headed screw and chain drive driven by the servo motor, the filter screen can be installed and removed easily. The tilting baffle guides the flow of particles and prevents accumulation.
It improves filtration efficiency and effectiveness, simplifies the filter cleaning process, and enhances the working efficiency of the device.
Smart Images

Figure CN224240107U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic particle filtration and processing technology, specifically a filtration device for recycled plastic particle raw materials. Background Technology
[0002] Plastic granule filters are mainly used to separate and filter impurities or granules that do not meet size requirements in plastic granules. During the plastic production or recycling process, raw materials may contain dust, metal scraps, unmelted particles or other foreign objects, which can affect the quality of the final product.
[0003] The prior art discloses patent application number "CN202022719775.8", which discloses a plastic granule raw material feeding and filtering device, including a box, a drying mechanism and a filtering mechanism; the filtering mechanism includes a vibration component and a filtering component; the filtering component includes a vibration box, a filter plate and a hinge, the vibration box is located at the lower end of the drying mechanism, the filter plate is horizontally arranged inside the vibration box, and one end of the filter plate is connected to the vertical surface of the vibration box through a hinge; the vibration component includes a vibration motor, a vibration rod and a spring, one end of the two vibration rods is fixedly connected to the outside of the vertical surface connecting the vibration box and the filter plate, and the other end of the two vibration rods is located inside the groove, one end of the spring is fixedly connected to the end of the vibration rod located inside the groove, and the other end of the spring is fixedly connected to the horizontal groove wall of the groove, and the vibration motor is located at the bottom of the outside of the vibration box.
[0004] This filtration device can only easily filter plastic particles of different sizes. However, in actual use, since the filter plates on the device are usually placed horizontally to filter plastic particles, the plastic particles tend to accumulate, which affects the filtration effect of the device. Furthermore, since the filter plates are located inside the device, the filter holes on the plates are easily blocked, making it difficult to disassemble and clean the plates, which also affects the working efficiency of the filtration device. Utility Model Content
[0005] The purpose of this invention is to provide a filter device for recycled plastic granules to solve the problems mentioned in the background art.
[0006] The objective of this utility model can be achieved through the following technical solutions:
[0007] A filter device for recycled plastic granules includes a base plate, a filter device body is fixedly mounted on the upper side of the base plate, a fixed frame is fixedly connected to one side of the filter device body, a double-ended screw is rotatably mounted inside the fixed frame, two symmetrically distributed mounting brackets are threaded to the outer surface of the double-ended screw, a connecting plate is fixedly mounted on one side of each of the two mounting brackets, and a lower inclined bracket and an upper inclined bracket are fixedly connected to one side of each of the two connecting plates.
[0008] Each of the two downward-sloping brackets has a filter frame one inside, and each of the two upward-sloping brackets has a filter frame two inside. Filter frames one and two are used to filter recycled plastic granules. Both ends of the filter device body are provided with downward-sloping grooves and upward-sloping grooves. Two symmetrically distributed inclined baffles are fixedly connected inside the filter device body. One side of the downward-sloping bracket is engaged with the inside of the downward-sloping groove, and one side of the upward-sloping bracket is engaged with the inside of the upward-sloping groove.
[0009] Preferably, the main body of the filter device is internally rotatably connected to a first rotating shaft and two second rotating shafts. The outer surfaces of the two second rotating shafts and the first rotating shaft are all arrayed with stirring plates for turning the recycled plastic granule raw materials. The two second rotating shafts and the first rotating shaft are distributed in an inverted "V" shape.
[0010] Preferably, one side of each of the two second rotating shafts and the first rotating shaft passes through the filter device body and extends to the other side of the filter device body. A first sprocket is fixedly installed on the outer surface of each of the two second rotating shafts. Two second sprockets are fixedly connected to the outer surface of the first rotating shaft. A chain is sleeved between the first sprocket and the second sprocket. A chain is sleeved between the other first sprocket and the second sprocket. A servo motor is fixedly installed on one side of the filter device body. The output shaft of the servo motor is fastened to the first rotating shaft.
[0011] Preferably, the upper inclined trough is located below the lower inclined trough, two inclined baffles are used to guide the recycled plastic granule raw material, and a crossbar is fixedly connected inside the main body of the filter device.
[0012] Preferably, the outer surface of the crossbar is slidably connected to the inside of the mounting bracket, a servo motor is fixedly connected to one side of the fixed bracket, the output shaft of the servo motor is fastened to the double-ended lead screw, the lower inclined bracket and the upper inclined bracket are distributed vertically, and the two lower inclined brackets and the upper inclined bracket are symmetrically distributed.
[0013] Preferably, two symmetrically distributed feed seats are fixedly connected to the upper side of the filter device body, the feed seats are located above the filter screen frame, and a discharge port is fixedly connected to the lower side of the filter device body.
[0014] The beneficial effects of this utility model are:
[0015] 1. This utility model allows two sets of filter frames, one and two, to be snapped into the interior of the filter device. Since the filter frames are symmetrically distributed, the recycled plastic granules can roll downwards for filtration. This speeds up the filtration of the recycled plastic granules and improves the filtration effect. Then, when the two sets of lower and upper inclined mounting brackets are moved out of the main body of the filter device, the filter frames can be easily and flexibly disassembled using the snap-fit method. This allows for the unblocking and cleaning of the filter frames, and regular unblocking and cleaning can improve the working efficiency of the filter device.
[0016] 2. This utility model utilizes the transmission action of chains and sprockets to enable three sets of stirring plates to simultaneously agitate the recycled plastic granules at the two sets of filter frames, preventing excessive accumulation of recycled plastic granules that would affect the filtration process. At the same time, the two inclined baffles can also block the recycled plastic granules at the bottom of the two filter frames, allowing the recycled plastic granules to be filtered in a concentrated manner and preventing excessive accumulation of recycled plastic granules. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a utility model Figure 1 Structural diagrams of the lower and upper inclined card holders;
[0020] Figure 3 This is a utility model Figure 2 A schematic diagram of the structure of the first rotating shaft and the stirring plate;
[0021] Figure 4 This is a utility model Figure 1 A schematic diagram of the installation of the second rotating shaft and the first sprocket;
[0022] Figure 5 This is a utility model Figure 1 Schematic diagram of the lower and upper inclined grooves;
[0023] The attached figures are labeled as follows:
[0024] 1. Base plate; 2. Filter device body; 3. Feed seat; 4. Fixing frame; 5. Double-ended lead screw; 6. Crossbar; 7. Mounting bracket; 8. Connecting plate; 9. Lower inclined bracket; 10. Upper inclined bracket; 11. Filter screen frame one; 12. Filter screen frame two; 13. Lower inclined groove; 14. Upper inclined groove; 15. Inclined baffle; 16. First rotating shaft; 17. Second rotating shaft; 18. Stirring plate; 19. First sprocket; 20. Second sprocket; 66. Discharge port. Detailed Implementation
[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0026] like Figures 1 to 5 As shown, a filter device for recycled plastic granules includes a base plate 1. A filter device body 2 is fixedly mounted on the upper side of the base plate 1. A fixing frame 4 is fixedly connected to one side of the filter device body 2. A double-ended screw 5 is rotatably mounted inside the fixing frame 4. Two symmetrically distributed mounting brackets 7 are threadedly connected to the outer surface of the double-ended screw 5. A connecting plate 8 is fixedly mounted on one side of each of the two mounting brackets 7. A lower inclined bracket 9 and an upper inclined bracket 10 are fixedly connected to one side of each of the two connecting plates 8.
[0027] Both downward-sloping brackets 9 have filter frames 11 engaged inside, and both upward-sloping brackets 10 have filter frames 12 engaged inside. Filter frames 11 and 12 are used to filter recycled plastic granules. When recycled plastic granules are fed into the filter device, they come into contact with filter frames 11 and roll to filter, preventing excessive accumulation of recycled plastic granules. Both ends of the filter device body 2 have downward-sloping grooves 13 and upward-sloping grooves 14. The filter device body 2 is fixedly connected to... Two symmetrically distributed inclined baffles 15 have one side of the lower inclined bracket 9 engaged inside the lower inclined groove 13 and one side of the upper inclined bracket 10 engaged inside the upper inclined groove 14. Through the installation and use of filter screen frame one 11 and filter screen frame two 12, when the two sets of lower inclined brackets 9 and upper inclined brackets 10 enter the interior of the filter device, the lower inclined groove 13 and upper inclined groove 14 can fit and squeeze the filter screen frame one 11 and filter screen frame two 12, ensuring the stability of filter screen frame one 11 and filter screen frame two 12 during installation.
[0028] The main body 2 of the filter device is internally connected to a first rotating shaft 16 and two second rotating shafts 17. The outer surfaces of the two second rotating shafts 17 and the first rotating shaft 16 are all connected in an array to stirring plates 18 for turning the recycled plastic granule raw material. The two second rotating shafts 17 and the first rotating shaft 16 are arranged in an inverted "V" shape. One stirring plate 18 is located above the connection between the two filter screen frames 11, and the other two stirring plates 18 are located at the bottom of the two filter screen frames 12, which are used to continuously turn the recycled plastic granule raw material to speed up the filtration process.
[0029] Two second rotating shafts 17 and one side of the first rotating shaft 16 both penetrate the filter device body 2 and extend to the other side of the filter device body 2. A first sprocket 19 is fixedly installed on the outer surface of each of the two second rotating shafts 17. Two second sprockets 20 are fixedly connected to the outer surface of the first rotating shaft 16. A chain is sleeved between the first sprocket 19 and the second sprocket 20. A chain is sleeved between another first sprocket 19 and the second sprocket 20. A servo motor is fixedly installed on one side of the filter device body 2. The output shaft of the servo motor is fastened to the first rotating shaft 16.
[0030] The upper inclined trough 14 is located below the lower inclined trough 13. Two inclined baffles 15 are used to guide the recycled plastic granule raw material. A crossbar 6 is fixedly connected inside the filter body 2. The crossbar 6 can limit and guide the movement trajectory of the two mounting brackets 7, so that the two mounting brackets 7 can drive the lower inclined bracket 9 and the upper inclined bracket 10 to move and adjust smoothly. The crossbar 6 is used to engage the lower inclined bracket 9 and the upper inclined bracket 10 to filter the recycled plastic granule raw material.
[0031] The outer surface of the crossbar 6 is slidably connected to the inside of the mounting bracket 7. A servo motor is fixedly connected to one side of the fixed bracket 4. The output shaft of the servo motor is fastened to the double-ended lead screw 5. The model of the servo motor is SMBL-60P. The lower inclined bracket 9 and the upper inclined bracket 10 are distributed vertically. The two lower inclined brackets 9 and the upper inclined bracket 10 are symmetrically distributed.
[0032] Two symmetrically distributed feed seats 3 are fixedly connected to the upper side of the filter device body 2. The feed seats 3 are located above the filter screen frame 11. A discharge port 66 is fixedly connected to the lower side of the filter device body 2.
[0033] The working principle of the recycled plastic granule raw material filtration device provided by this utility model is as follows:
[0034] By driving the double-ended lead screw 5 to rotate through the output shaft of the servo motor, the two mounting brackets 7 on the double-ended lead screw 5 can move towards each other, allowing the two sets of lower inclined brackets 9 and upper inclined brackets 10 to enter the lower inclined groove 13 and upper inclined groove 14 respectively. At this time, the two sets of filter screen frames 11 and 12 can be snapped into the interior of the filter device body 2. Since the filter screen frames 11 and 12 are symmetrically distributed, the recycled plastic granules can roll downwards for filtration, which can speed up the filtration of the recycled plastic granules and improve the filtration effect. Then, when the double-ended lead screw 5 reverses, the two mounting brackets 7 on the double-ended lead screw 5 can move relative to each other, allowing the two sets of lower inclined brackets 9 and upper inclined brackets 10 to move out of the interior of the filter device body 2. The snap-fit method allows for flexible and convenient disassembly of the filter screen frames, so as to unclog and clean the blocked filter screen frames 11 and 12. Regular unclog and clean the filter screen frames to improve the working efficiency of the filter device.
[0035] By starting the servo motor, the output shaft of the servo motor drives the first rotating shaft 16 to rotate. Then, using the first sprockets 19 on the two second rotating shafts 17, the two second sprockets 20 on the first rotating shaft 16, and the two chains, the first rotating shaft 16 can drive the two second rotating shafts 17 to rotate together. In this way, the three sets of stirring plates 18 can simultaneously agitate the recycled plastic granules at the two sets of filter frames, preventing the recycled plastic granules from accumulating too much and affecting the filtration process. At the same time, the two inclined baffles 15 can also block the recycled plastic granules at the bottom of the two filter frames 12, allowing the recycled plastic granules to be filtered in a concentrated manner and preventing excessive accumulation of recycled plastic granules.
[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A filter device for recycled plastic pellet raw materials, comprising a base plate (1), characterized in that: The filter device body (2) is fixedly installed on the upper side of the base plate (1). A fixed frame (4) is fixedly connected to one side of the filter device body (2). A double-headed screw (5) is rotatably installed inside the fixed frame (4). Two symmetrically distributed mounting brackets (7) are threaded on the outer surface of the double-headed screw (5). A connecting plate (8) is fixedly installed on one side of each of the two mounting brackets (7). A lower inclined bracket (9) and an upper inclined bracket (10) are fixedly connected to one side of each of the two connecting plates (8). The two lower inclined brackets (9) are each fitted with a first filter screen frame (11), and the two upper inclined brackets (10) are each fitted with a second filter screen frame (12). The first filter screen frame (11) and the second filter screen frame (12) are used to filter recycled plastic granule raw materials. The two ends of the filter device body (2) are provided with a lower inclined groove (13) and an upper inclined groove (14). The filter device body (2) is fixedly connected with two symmetrically distributed inclined baffles (15). One side of the lower inclined bracket (9) is fitted into the lower inclined groove (13), and one side of the upper inclined bracket (10) is fitted into the upper inclined groove (14).
2. The recycled plastic granule raw material filtration device according to claim 1, characterized in that, The filter device body (2) is internally connected to a first rotating shaft (16) and two second rotating shafts (17). The outer surfaces of the two second rotating shafts (17) and the first rotating shaft (16) are all connected in an array to a stirring plate (18) for turning over the recycled plastic granule raw material. The two second rotating shafts (17) and the first rotating shaft (16) are arranged in an inverted "V" shape.
3. The recycled plastic granule raw material filtration device according to claim 2, characterized in that, One side of each of the two second rotating shafts (17) and the first rotating shaft (16) penetrates the filter device body (2) and extends to the other side of the filter device body (2). The outer surfaces of the two second rotating shafts (17) are fixedly mounted with first sprockets (19). The outer surface of the first rotating shaft (16) is fixedly connected with two second sprockets (20). A chain is sleeved between the first sprocket (19) and the second sprocket (20). Another chain is sleeved between the first sprocket (19) and the second sprocket (20). A servo motor is fixedly provided on one side of the filter device body (2). The output shaft of the servo motor is tightly connected to the first rotating shaft (16).
4. The recycled plastic granule raw material filtration device according to claim 1, characterized in that, The upper inclined trough (14) is located below the lower inclined trough (13), and two inclined baffles (15) are used to guide the recycled plastic granule raw materials. A crossbar (6) is fixedly connected inside the filter device body (2).
5. A filter device for recycled plastic granules according to claim 4, characterized in that, The outer surface of the crossbar (6) is slidably connected to the inside of the mounting bracket (7). A servo motor is fixedly connected to one side of the fixed bracket (4). The output shaft of the servo motor is fastened to the double-ended lead screw (5). The lower inclined bracket (9) and the upper inclined bracket (10) are distributed vertically. The two lower inclined brackets (9) and the upper inclined brackets (10) are symmetrically distributed.
6. The recycled plastic granule raw material filtration device according to claim 1, characterized in that, The upper side of the filter device body (2) is fixedly connected to two symmetrically distributed feed seats (3), the feed seats (3) are located above the filter screen frame (11), and the lower side of the filter device body (2) is fixedly connected to a discharge port (66).