Plastic electrostatic sorting feeding machine
By designing anti-clogging components, the resonance and static electricity accumulation problems of the plastic electrostatic sorting feeder were solved, achieving stable operation and efficient sorting of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO WEIERCHI PLASTIC CO LTD
- Filing Date
- 2025-09-24
- Publication Date
- 2026-07-21
AI Technical Summary
Existing electrostatic plastic sorting and feeding machines are prone to resonance when the vibration energy of the vibrating motor is close to the natural frequency of the equipment. This can lead to loosening of the frame bolts, cracking of the hopper welds, and uneven accumulation of static charge generated by plastic friction, affecting the equipment's lifespan and sorting efficiency.
It adopts anti-clogging components, including a rotating shaft, lead screw, drive gear, driven gear, knob, lifting plate, connecting rod and push plate. Through gear meshing and thread transmission, it can accurately unclog the blocked area and avoid high-frequency vibration from aggravating material wear and static electricity accumulation.
It achieves efficient unblocking of blockages, avoids damage to equipment structure and static electricity accumulation, ensures continuous operation of the feeder, and improves equipment stability and sorting effect.
Smart Images

Figure CN224529547U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of sorting and feeding technology, and specifically relates to a plastic electrostatic sorting and feeding machine. Background Technology
[0002] The electrostatic plastic separator feeder is a core component of the electrostatic sorting system for plastic recycling. Its main function is to uniformly and stably transport crushed and mixed plastic materials from the storage end to the feed inlet of the electrostatic separator, providing a continuous and suitable material supply for subsequent sorting processes. This prevents material accumulation, blockage, or uneven conveying from affecting sorting purity and efficiency. Common types include belt conveyors, screw conveyors, vibratory conveyors, vacuum conveyors, and pneumatic conveyors. Different types achieve directional conveying through differentiated power drives and conveying structures. Furthermore, considering the tendency of plastics to generate static electricity and clump, anti-static materials, anti-clogging designs, and flow regulation functions are typically employed to ensure that materials do not adhere or clog during conveying, and that the feed rate is precisely matched to the processing capacity of the electrostatic separator. These systems are widely used in waste plastic recycling and sorting production lines, helping to improve automation levels and material sorting stability.
[0003] Announcement No. "CN217755332U" discloses a plastic electrostatic sorting and feeding machine, comprising a machine body, a feeding hopper, and a structural plate. A second rotating roller is mounted on the bottom of the machine body via bearings, and a first rotating roller is mounted on the top of the machine body via bearings. A conveyor belt is fitted around the outer sides of the first and second rotating rollers, and a rubber plate is heat-fused to the outer side of the conveyor belt. The feeding hopper is bolted to one side of the machine body, and a vibration motor is mounted on one side of the feeding hopper via a mounting bracket. A structural plate is welded to one end of the machine body, and a geared motor is mounted on the top of the structural plate via a mounting bracket. This plastic electrostatic sorting and feeding machine has a simple overall structure, is easy to operate, has high feeding efficiency, and the vibration prevents plastic from clogging between the feeding hopper and the machine body.
[0004] Although the above-mentioned utility model can prevent plastic from clogging between the feed hopper and the machine body through vibration, if the vibration energy of the vibrating motor is close to the natural frequency of the feeder body, it is easy to cause equipment resonance. Resonance will amplify the vibration amplitude, leading to structural damage such as loose frame bolts and cracked hopper welds, shortening the service life of the equipment. Moreover, plastic itself is prone to generating static electricity due to friction, and the high-frequency vibration of the vibrating motor will further aggravate the friction between materials, increasing the accumulation of static charge on the surface of the plastic material and making it unevenly distributed. Utility Model Content
[0005] In response to the problems mentioned in the background art, the purpose of this utility model is to provide a plastic electrostatic sorting and feeding machine to solve the problem that if the vibration energy of the vibrating motor is close to the natural frequency of the feeding machine body, it is easy to cause equipment resonance. Resonance will amplify the vibration amplitude, leading to structural damage such as loose frame bolts and cracked hopper welds, shortening the service life of the equipment. Moreover, plastic itself is prone to generating static electricity due to friction, and the high-frequency vibration of the vibrating motor will further aggravate the friction between materials, increasing the accumulation of static charge on the surface of the plastic material and causing uneven distribution.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0007] A plastic electrostatic sorting and feeding machine includes a base, a sorting machine body fixedly connected to the top of the base, a second rotating roller rotatably connected to one side of the inside of the sorting machine body, a rotating column rotatably connected to one side of the inside of the sorting machine body, the other end of the rotating column extending out of the outside of the sorting machine body, a first rotating roller fixedly sleeved on the outside of the rotating column, a conveyor belt sleeved on the outside of the first and second rotating rollers, rubber plates symmetrically heat-fused at equal intervals on the outside of the conveyor belt, a feed hopper fixedly connected to one side of the sorting machine body, a discharge pipe fixedly connected to the side of the sorting machine body away from the feed hopper, an anti-clogging component installed on the top of the base, and a drive motor mounted on one side of the sorting machine body via a motor frame.
[0008] The anti-clogging component includes a rotating shaft, a lead screw, a drive gear, a driven gear, a knob, a lifting plate, a connecting rod, and a push plate. A fixed plate is symmetrically fixed to one side of the sorting machine body. A rotating shaft is symmetrically rotatably connected to the top of the fixed plate. A lead screw is fixedly connected to the top of the rotating shaft, and the other end of the lead screw is rotatably connected to the bottom of the fixed plate. A driven gear is fixedly sleeved on the outer wall of the rotating shaft. A drive gear is rotatably connected to the top of the fixed plate, and a knob is fixedly connected to the center of the top of the drive gear. A lifting plate is sleeved on the outer side of the lead screw, and the lifting plate is threaded to the lead screw. A connecting rod is fixedly connected to the top of the lifting plate, and the other end of the connecting rod extends into the feed hopper and is fixedly connected to a push plate. The diameter of the drive gear is larger than that of the driven gear. The drive gear and the driven gear mesh with each other, enabling precise action on the clogged area of the feed hopper, efficiently clearing clumped plastic, avoiding the lag of manual intervention, and ensuring a stable and controllable pushing process. It will not aggravate material wear or generate excessive dust due to high-frequency vibration, nor will it interfere with subsequent electrostatic sorting. It is also easy to operate, can quickly respond to clogging problems, and ensures continuous operation of the feeder.
[0009] As a preferred technical solution, the sorting machine body has symmetrical guide grooves on one side, and guide blocks are symmetrically fixedly connected to one side of the lifting plate. The guide blocks and guide grooves are slidably connected and slidably cooperate with each other, which can accurately limit the movement direction of the lifting plate, prevent it from deviating or shaking when lifting, ensure that the push plate stably pushes the material, and ensure the efficient operation of the anti-blocking components.
[0010] As a preferred technical solution, a first synchronous pulley is fixedly connected to one end of the rotating column. The first synchronous pulley is located on the outside of the sorting machine body. A second synchronous pulley is rotatably connected to the outer wall of the sorting machine body. The output end of the drive motor is fixedly connected to the second synchronous pulley. A synchronous belt is installed between the first and second synchronous pulleys. The drive motor power is transmitted through the cooperation of the synchronous pulley and the synchronous belt, which can ensure that the rotating column drives the first rotating roller to operate stably, avoid slippage or lag in power transmission, and make the conveyor belt transport materials at a uniform speed. This ensures that the feeding speed is adapted to the requirements of the sorting machine and improves the overall stability of the equipment operation.
[0011] In summary, the present invention has the following main advantages:
[0012] In this invention, when the feed hopper becomes clogged, rotating the knob controls the drive gear to rotate. The drive gear drives the driven gear to rotate, which in turn drives the rotating shaft to rotate. The rotating shaft drives the lead screw to rotate, and the lead screw and the lifting plate are connected by a threaded transmission, thereby controlling the lifting plate to rise. At the same time, the lifting plate drives the connecting rod to rise, and the lifting plate drives the push plate to rise through the connecting rod. The push plate pushes the plastic clogged inside the feed hopper, which can accurately target the clogged area of the feed hopper, efficiently clearing the clumped plastic, avoiding the lag of manual intervention. Moreover, the pushing process is stable and controllable, and will not aggravate material wear or generate excessive dust due to high-frequency vibration, nor will it interfere with the subsequent electrostatic sorting effect. At the same time, it is easy to operate, can quickly respond to the blockage problem, and ensure the continuous operation of the feeder. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0014] Figure 2 This is a bottom-view three-dimensional structural diagram of the present invention;
[0015] Figure 3 This is the utility model Figure 2 Enlarged view of part A;
[0016] Figure 4 This is a cross-sectional three-dimensional structural schematic diagram of the present invention;
[0017] Figure 5 This is the utility model Figure 4 Enlarged view of part B.
[0018] Reference numerals in the attached drawings: 1. Base; 2. Sorter body; 3. Feed hopper; 4. Discharge pipe; 5. First rotating roller; 6. Second rotating roller; 7. Conveyor belt; 8. Rubber plate; 9. Motor frame; 10. Drive motor; 11. Rotating column; 12. First synchronous pulley; 13. Second synchronous pulley; 14. Synchronous belt; 15. Fixing plate; 16. Anti-clogging component; 161. Rotating shaft; 162. Lead screw; 163. Drive gear; 164. Driven gear; 165. Knob; 166. Lifting plate; 167. Connecting rod; 168. Push plate; 17. Guide block; 18. Guide groove. Detailed Implementation
[0019] Example
[0020] refer to Figures 1 to 5 The plastic electrostatic sorting and feeding machine described in this embodiment includes a base 1, a sorting machine body 2 fixedly connected to the top of the base 1, a second rotating roller 6 rotatably connected to one side of the inside of the sorting machine body 2, a rotating column 11 rotatably connected to one side of the inside of the sorting machine body 2, the other end of the rotating column 11 extending out of the outside of the sorting machine body 2, a first rotating roller 5 fixedly sleeved on the outside of the rotating column 11, a conveyor belt 7 sleeved on the outside of the first rotating roller 5 and the second rotating roller 6, rubber plates 8 symmetrically heat-fused at equal distances on the outside of the conveyor belt 7, a feed hopper 3 fixedly connected to one side of the sorting machine body 2, a discharge pipe 4 fixedly connected to the side of the sorting machine body 2 away from the feed hopper 3, an anti-clogging component 16 installed on the top of the base 1, and a drive motor 10 installed on one side of the sorting machine body 2 via a motor frame 9.
[0021] The anti-clogging component 16 includes a rotating shaft 161, a lead screw 162, a drive gear 163, a driven gear 164, a knob 165, a lifting plate 166, a connecting rod 167, and a push plate 168. A fixed plate 15 is symmetrically fixedly connected to one side of the sorting machine body 2. A rotating shaft 161 is symmetrically rotatably connected to the top of the fixed plate 15. A lead screw 162 is fixedly connected to the top of the rotating shaft 161. The other end of the lead screw 162 is rotatably connected to the bottom of the fixed plate 15. A driven gear 164 is fixedly sleeved on the outer wall of the rotating shaft 161. A drive gear 163 is rotatably connected to the top of the fixed plate 15. A knob 165 is fixedly connected to the center of the top of the drive gear 163. A lifting plate 166 is sleeved on the outer side of the lead screw 162. The lifting plate 166 and the lead screw 162 are threadedly connected. A connecting rod 168 is fixedly connected to the top of the lifting plate 166. 67. The other end of the connecting rod 167 extends into the feed hopper 3 and is fixedly connected to a push plate 168. The diameter of the drive gear 163 is larger than the diameter of the driven gear 164. The drive gear 163 and the driven gear 164 mesh with each other. When the feed hopper 3 is blocked, the knob 165 is turned to control the drive gear 163 to rotate. The drive gear 163 drives the driven gear 164 to rotate. The driven gear 164 drives the rotating shaft 161 to rotate. The rotating shaft 161 drives the lead screw 162 to rotate. The lead screw 162 and the lifting plate 166 are threadedly driven, thereby controlling the lifting plate 166 to rise. At the same time, the lifting plate 166 drives the connecting rod 167 to rise. At the same time, the lifting plate 166 drives the push plate 168 to rise through the connecting rod 167. The push plate 168 pushes the plastic blocked inside the feed hopper 3.
[0022] refer to Figure 3 The sorting machine body 2 has a guide groove 18 symmetrically opened on one side, and a guide block 17 is symmetrically fixedly connected to one side of the lifting plate 166. The guide block 17 and the guide groove 18 are slidably connected. When the lifting plate 166 is raised or lowered, the lifting plate 166 drives the guide block 17 to slide inside the guide groove 18.
[0023] refer to Figure 1 One end of the rotating column 11 is fixedly connected to a first synchronous wheel 12, which is located on the outside of the sorting machine body 2. A second synchronous wheel 13 is rotatably connected to the outer wall of the sorting machine body 2. The output end of the drive motor 10 is fixedly connected to the second synchronous wheel 13. A synchronous belt 14 is installed between the first synchronous wheel 12 and the second synchronous wheel 13. When the drive motor 10 is started, the second synchronous wheel 13 is controlled to rotate. The second synchronous wheel 13 drives the first synchronous wheel 12 to rotate through the synchronous belt 14. The first synchronous wheel 12 drives the rotating column 11 to rotate. The rotating column 11 drives the first rotating roller 5 to rotate, thereby controlling the movement of the conveyor belt 7 and the rubber plate 8.
[0024] Operating principle and advantages: When in use, plastic material is poured into the feed hopper 3, and the drive motor 10 is started. Its output end drives the second synchronous wheel 13 to rotate, which in turn drives the first synchronous wheel 12 to rotate through the synchronous belt 14. This drives the rotating column 11 and the first rotating roller 5 to rotate. The first rotating roller 5 works with the conveyor belt 7 and the second rotating roller 6. The rubber plate 8 on the outside of the conveyor belt 7 lifts and conveys the material, which is finally sent into the sorting machine body 2 through the discharge pipe 4. When the feed hopper 3 is blocked, the knob 165 is turned to make the drive gear 163 rotate. The drive gear 163 meshes and drives the driven gear 164 and the rotating shaft 161 to rotate. The rotating shaft 161 drives the lead screw 162 to rotate. The lead screw 162 and the lifting plate 166 are threaded to make the lifting plate 166 rise. The lifting plate 166 slides along the guide groove 18 through the guide block 17 to maintain stability. At the same time, the push plate 168 is driven to rise through the connecting rod 167. The push plate 168 pushes the blocked material to clear it. After clearing it, the knob 165 is turned in the opposite direction to make the push plate 168 reset.
[0025] This invention can precisely target the blocked area of the feed hopper 3, efficiently clearing clumped plastic, avoiding the lag of manual intervention, and the pushing process is stable and controllable. It will not aggravate material wear or generate too much dust due to high-frequency vibration, nor will it interfere with the subsequent electrostatic sorting effect. At the same time, it is easy to operate, can quickly respond to blockage problems, and ensure the continuous operation of the feeder.
Claims
1. A plastic electrostatic sorting and feeding machine, comprising a base (1), characterized in that: The base (1) is fixedly connected to the top of the sorting machine body (2). The sorting machine body (2) is rotatably connected to one side of the inside of the sorting machine body (2). The sorting machine body (2) is rotatably connected to one side of the inside of the sorting machine body (2). The other end of the sorting machine body (11) extends out of the outside of the sorting machine body (2). The outside of the sorting machine body (11) is fixedly fitted with a first rotating roller (5). The outside of the first rotating roller (5) and the second rotating roller (6) is fitted with a conveyor belt (7). The outside of the conveyor belt (7) is symmetrically and equidistantly heat-fused with rubber plates (8). The sorting machine body (2) is fixedly connected to one side of the feed hopper (3). The sorting machine body (2) is fixedly connected to the side away from the feed hopper (3) with a discharge pipe (4). The base (1) is equipped with an anti-clogging component (16). The sorting machine body (2) is equipped with a drive motor (10) through a motor frame (9) on one side.
2. The plastic electrostatic sorting and feeding machine according to claim 1, characterized in that: The anti-clogging component (16) includes a rotating shaft (161), a lead screw (162), a drive gear (163), a driven gear (164), a knob (165), a lifting plate (166), a connecting rod (167), and a push plate (168). A fixed plate (15) is symmetrically fixedly connected to one side of the sorting machine body (2). A rotating shaft (161) is symmetrically rotatably connected to the top of the fixed plate (15). A lead screw (162) is fixedly connected to the top of the rotating shaft (161). The other end of the lead screw (162) is rotatably connected to the bottom of the fixed plate (15). A driven gear (164) is fixedly sleeved on the outer wall of the moving shaft (161). A drive gear (163) is rotatably connected to the top of the fixed plate (15). A knob (165) is fixedly connected to the center of the top of the drive gear (163). A lifting plate (166) is sleeved on the outer side of the lead screw (162). The lifting plate (166) is threadedly connected to the lead screw (162). A connecting rod (167) is fixedly connected to the top of the lifting plate (166). The other end of the connecting rod (167) extends into the feed hopper (3) and is fixedly connected to a push plate (168).
3. The plastic electrostatic sorting and feeding machine according to claim 2, characterized in that: The diameter of the drive gear (163) is larger than the diameter of the driven gear (164), and the drive gear (163) and the driven gear (164) mesh with each other.
4. The plastic electrostatic sorting and feeding machine according to claim 3, characterized in that: The sorting machine body (2) has symmetrical guide grooves (18) on one side, and the lifting plate (166) has symmetrical guide blocks (17) fixedly connected to one side. The guide blocks (17) and the guide grooves (18) are slidably connected.
5. A plastic electrostatic sorting and feeding machine according to claim 1, characterized in that: One end of the rotating column (11) is fixedly connected to a first synchronous wheel (12), which is located outside the body (2) of the sorting machine.
6. A plastic electrostatic sorting and feeding machine according to claim 5, characterized in that: The outer wall of the sorting machine body (2) is rotatably connected to a second synchronous pulley (13), the output end of the drive motor (10) is fixedly connected to the second synchronous pulley (13), and a synchronous belt (14) is installed between the first synchronous pulley (12) and the second synchronous pulley (13).