Impurity separation system based on microfibrillated waste plastic recovery

Abstract

The utility model relates to an impurity separation system based on microfibrillated waste plastic recovery, which is applied to the technical field of impurity separation of waste plastic recovery and realizes that a first servo motor of a starting machine drives second rotating shafts, and two second rotating shafts drive a third rotating shaft to rotate relatively through two gears which are in meshed connection. At the moment, microfibrillated waste plastic raw materials are placed in a crushing box, a second servo motor is started to drive a crushing cutter to conduct crushing, crushed particles fall into a storage box from a discharging opening, an electromagnetic rolling shaft is started through a controller at the moment, the plastic particles falling into the storage box are stirred in the rotating process, and the plastic particles fall into the storage box; magnetic materials in the plastic particles are adsorbed to the surface of the electromagnetic rolling shaft, when the third rotating shaft rotates and the connecting rod abuts against the first pressure sensor, the first pressure sensor is triggered, the electromagnetic rolling shaft is automatically closed, the magnetic materials automatically fall into the recycling frame to be collected after the electromagnetic rolling shaft loses magnetic force, and therefore the plastic particles and the magnetic materials are separated.

Description

Technical Field

[0001] The utility model relates to an impurity separation system based on microfibrillated waste plastic recycling, in particular to an impurity separation system based on microfibrillated waste plastic recycling applied to the technical field of impurity separation in waste plastic recycling. Background Art

[0002] With the wide use of plastic products, the quantity of waste plastics is increasing continuously, causing serious pollution to the environment. At the same time, waste plastics often contain various impurities, such as soil, metal, paper, etc. These impurities will affect the quality of waste plastic recycling. To solve this problem, an impurity separation system based on microfibrillated waste plastic recycling has emerged. This impurity separation system first needs to use a crushing device to crush the waste plastics into tiny fibrous substances and then perform impurity separation.

[0003] The specification of Chinese Patent CN218803360U discloses a crushing device for waste plastic recycling, including a main box body. A first machine cover is fixedly arranged on the front end face of the main box body. Two rotating motors are fixedly arranged on the rear end face inside the first machine cover. The output ends of both rotating motors are fixedly provided with crushing rollers. A second machine cover is fixedly arranged on one side of the main box body. A vibration motor is fixedly arranged on one side inside the second machine cover. The output end of the vibration motor is fixedly provided with a connecting plate. In this utility model, through the crushing of plastics by the two crushing rollers, the plastics will fall onto the sieve plate. The vibration motor drives the connecting plate, and the connecting plate is connected to the sieve plate. Multiple sieve holes are opened on the sieve plate. Through the multiple sieve holes on the sieve plate and the drive of the vibration motor, the large-particle plastics after crushing will fall out from the right side of the fixed block, and the small-particle plastics will fall out from the left side of the fixed block. Through such screening, it is convenient for the next-step treatment of plastics.

[0004] In the existing microfibrillated waste plastic recycling device, magnetic materials are doped in the particles after crushing and cannot be separated during the crushing process, resulting in the need for a separate separation step later, thus affecting the working efficiency. Summary of the Utility Model

[0005] Aiming at the above-mentioned existing technology, the technical problem to be solved by the present utility model is that in the existing microfibrillated waste plastic recycling device, magnetic materials are doped in the particles after crushing and cannot be separated during the crushing process, resulting in the need for a separate separation step later, thus affecting the working efficiency.

[0006] To solve the above problems, the present utility model provides an impurity separation system based on the recycling of microfibrillated waste plastics, which includes a crushing box with a discharge port at the bottom. The inner wall of the crushing box is symmetrically and rotatably connected with crushing knives. A second servo motor is installed at the side end of the crushing box, and the output end of the second servo motor is connected to the first crushing knife. Four corners at the bottom end of the crushing box are fixedly connected with support legs. Electric push rods are fixedly connected to the inner sides of the four support legs. The movable end of the electric push rod is movably connected with a bracket. The top end of the bracket is detachably connected with a storage box. A feed opening is provided on the side end of the storage box. A sealing cover matching the feed opening is rotatably connected to the side wall of the feed opening through a hinge, and the sealing cover is fixed to the side wall of the storage box through a bolt. Symmetrical limiting openings are formed at the top end of the bracket. A strip-shaped block is fixedly connected to the bottom end of the storage box, and the strip-shaped block is engaged with the limiting opening. Third rotating shafts are symmetrically and rotatably connected to the inner wall of the storage box. Connecting rods are symmetrically and fixedly connected to the side walls of the third rotating shafts. An electromagnetic roller is rotatably connected between the two connecting rods. U-shaped grooves are symmetrically formed in the top cross-section of the storage box. A recycling frame is placed in the U-shaped groove, and the recycling frame is located between the two third rotating shafts. The position of the discharge port is on both sides of the recycling frame;

[0007] An angled support plate corresponding to the connecting rod is fixedly connected to the side end of the recycling frame. An elastic pad is embedded in the support plate. A first pressure sensor is fixedly connected to the end of the elastic pad away from the support plate. The connecting rod rotates through the third rotating shaft and abuts against the first pressure sensor.

[0008] In the above waste plastic recycling and crushing equipment, the third rotating shaft is driven by the first servo motor to drive the electromagnetic roller to rotate to stir the crushed plastic particles, adsorb the internally doped magnetic materials, and then after turning over above the recycling frame, the electromagnetic roller is turned off, so that the magnetic materials fall into the recycling frame for collection.

[0009] As a further improvement of the present application, clamping blocks are fixedly connected to the ends of the third rotating shafts. Axial holes are symmetrically formed in the side end of the storage box. Limiting shafts are inserted into the axial holes, and the clamping blocks are engaged with the limiting shafts. The first rotating shafts are symmetrically and rotatably connected to the end of the storage box away from the axial holes in an embedded manner. A clamping groove is formed in the middle of the side end of the first rotating shaft. A second rotating shaft is fixedly connected to the end of the first rotating shaft outside the storage box. Gears are sleeved on the second rotating shafts, and the two gears are meshed. A support plate is fixedly connected to the outer side end of the storage box. A first servo motor is fixedly connected to the support plate, and the output end of the first servo motor is connected to one of the second rotating shafts.

[0010] As a further improvement of the present application, a dust-proof plate is detachably connected to the top end of the storage box, and the dust-proof plate is fixedly connected to the storage box through a clamping plate. A second pressure sensor is installed at the bottom end of the crushing box through an elastic connecting block.

[0011] As a further improvement of the present application, a baffle is fixedly connected to the top end of the crushing box through bolts. Sliding grooves are symmetrically formed in the top cross-section of the baffle, and the inner walls of the sliding grooves are made of magnetic materials.

[0012] As another improvement of the present application, a cloth baffle is slidably connected in the chute. One end of the cloth baffle is fixedly connected to the top of the baffle, and the other end of the cloth baffle is fixedly connected to a strip-shaped plate.

[0013] As a supplement to another improvement of the present application, an L-shaped sliding rod is installed in the chute. A magnetic block is sleeved on the L-shaped sliding rod, and the magnetic block is fixedly connected to the bottom of the strip-shaped plate, and the magnetic block attracts the side wall of the chute.

[0014] As a supplement to another improvement of the present application, a plurality of collars are sleeved on the L-shaped sliding rod, and the top wall of the collar is fixedly connected to the bottom of the cloth baffle.

[0015] In summary, the first servo motor is started through the controller. The first servo motor drives the second rotating shaft, and through two meshing gears, the two second rotating shafts drive the third rotating shaft to rotate relatively. Subsequently, the recycling box is clamped into the U-shaped groove for fixation. The storage box is positioned by clamping the strip-shaped block and the limiting port. Then, the electric push rod is started through the controller to push the bracket upward to be close to the feeding port. At this time, the microfibrillated waste plastic raw materials are placed in the crushing box, and the second servo motor is started to drive the crushing knife for crushing. The crushed material particles fall into the storage box from the discharge port at the bottom of the crushing box. At this time, the electromagnetic roller stirs the plastic particles falling into the storage box during rotation, and the electromagnetic roller is turned on through the controller at this time to adsorb the magnetic materials in the plastic particles on the surface of the electromagnetic roller. When the third rotating shaft rotates and the connecting rod touches the first pressure sensor, the first pressure sensor is triggered, and the electromagnetic roller is automatically turned off. After the electromagnetic roller loses its magnetic force, the magnetic materials will automatically fall into the recycling box for collection. When the connecting rod touches the first pressure sensor, the first servo motor will stop running for a period of time for the magnetic materials on the electromagnetic roller to fall. After the fall, the first servo motor is driven at this time to rotate the third rotating shaft in the reverse direction. At the same time, after the connecting rod leaves the first pressure sensor, it automatically returns to the magnetic state, so that the electromagnetic roller rotates back to the storage box along the original path to adsorb the magnetic materials again, and the plastic particles and magnetic materials in the storage box are separated in sequence. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Isometric view of the separation device according to the first and second embodiments of the present application;

[0017] Figure 2 Installation structure diagram of the storage box according to the first and second embodiments of the present application;

[0018] Figure 3 Internal structure diagram of the storage box according to the first embodiment of the present application;

[0019] Figure 4 For the present application Figure 3 Enlarged view at A in;

[0020] Figure 5 Structural schematic diagram of the electromagnetic roller drive assembly according to the first embodiment of the present application;

[0021] Figure 6 Installation structure diagram of the baffle and the cloth baffle according to the second embodiment of the present application;

[0022] Figure 7 Installation structure diagram of the cloth baffle in the chute according to the second embodiment of the present application;

[0023] Figure 8 For the present application Figure 7 Enlarged view at B in

[0024] Description of the reference numerals in the figure:

[0025] 1. Crushing box; 2. Support leg; 3. Electric push rod; 4. Bracket; 5. Storage box; 6. Baffle; 7. Cloth baffle; 8. Recycling box; 9. Dust-proof plate; 10. Limiting shaft; 11. Shaft hole; 12. Electromagnetic roller; 13. Feeding port; 14. First servo motor; 15. First rotating shaft; 16. Card slot; 17. Second rotating shaft; 18. Gear; 19. Second servo motor; 20. Chute; 21. L-shaped slide bar; 22. Strip-shaped plate; 23. Magnetic block; 24. Collar; 25. Third rotating shaft; 26. Connecting rod; 27. Block; 28. Support plate; 29. First pressure sensor; 30. U-shaped groove. Specific embodiments

[0026] The following will describe in detail two embodiments of the present application with reference to the accompanying drawings.

[0027] The first embodiment:

[0028] Figures 1-5A kind of impurity separation system based on the recycling of microfibrillated waste plastics is shown, which includes a crushing box 1 with a discharge port at the bottom. The inner wall of the crushing box 1 is symmetrically and rotatably connected with crushing knives. A second servo motor 19 is installed at the side end of the crushing box 1, and the output end of the second servo motor 19 is connected to the first crushing knife. Four corners at the bottom end of the crushing box 1 are fixedly connected with support legs 2. Electric push rods 3 are fixedly connected to the inner sides of the four support legs 2. The movable end of the electric push rod 3 is movably connected with a bracket 4. A storage box 5 is detachably connected to the top end of the bracket 4. A feeding port 13 is opened at the side end of the storage box 5. A sealing cover matching the feeding port 13 is rotatably connected to the side wall of the feeding port 13 through a hinge, and the sealing cover is fixed to the side wall of the storage box 5 through a bolt. Limiting ports are symmetrically drilled at the top end of the bracket 4. A strip-shaped block is fixedly connected to the bottom end of the storage box 5, and the strip-shaped block is engaged with the limiting port. The inner wall of the storage box 5 is symmetrically and rotatably connected with third rotating shafts 25. Connecting rods 26 are symmetrically and fixedly connected to the side walls of the third rotating shafts 25. An electromagnetic roller 12 is rotatably connected between the two connecting rods 26. U-shaped grooves 30 are symmetrically opened at the top cross-section of the storage box 5. A recycling frame 8 is placed in the U-shaped grooves 30, and the recycling frame 8 is located between the two third rotating shafts 25, and the position of the discharge port is on both sides of the recycling frame 8;

[0029] An angled support plate 28 corresponding to the connecting rod 26 is fixedly connected to the side end of the recycling frame 8. An elastic pad is embedded in the support plate 28. One end of the elastic pad away from the support plate 28 is fixedly connected with a first pressure sensor 29, and the connecting rod 26 rotates through the third rotating shaft 25 and abuts against the first pressure sensor 29;

[0030] Blocks 27 are fixedly connected to the shaft ends of the third rotating shafts 25. Shaft holes 11 are symmetrically drilled at the side end of the storage box 5. A limiting shaft 10 is inserted into the shaft holes 11, and the blocks 27 are engaged with the limiting shafts 10. First rotating shafts 15 are symmetrically and rotatably connected in an embedded manner at one end of the storage box 5 away from the shaft holes 11. A clamping groove 16 is drilled in the middle of the side end of the first rotating shaft 15. A second rotating shaft 17 is fixedly connected to the end of the first rotating shaft 15 outside the storage box 5. A gear 18 is sleeved on the second rotating shaft 17, and the two gears 18 are meshed. A support plate is fixedly connected to the outer side end of the storage box 5. A first servo motor 14 is fixedly connected to the support plate, and the output end of the first servo motor 14 is connected to one of the second rotating shafts 17.

[0031] Working principle: first, insert the block 27 at one end of the third rotating shaft 25 into the slot 16 on the inner wall of the storage box 5, and then align the block 27 at the other end with the shaft hole 11, and then insert the limit shaft 10 into the shaft hole 11 and engage with the block 27, so as to complete the installation of the third rotating shaft 25. At this time, the first servo motor 14 is turned on by the controller, and the first servo motor 14 drives the second rotating shaft 17, and through the two meshing gears 18, the two second rotating shafts 17 drive the third rotating shaft 25 to rotate relative to each other, and then the return shaft 10 is turned on. The receiving frame 8 is inserted into the U-shaped groove 30 for fixing, and the receiving box 5 is positioned by engaging the bar block with the limit opening, and then the electric push rod 3 is turned on by the controller to push the bracket 4 upward to the position close to the discharge opening. At this time, the microfibrillated waste plastic raw material is placed in the crushing box 1, and the second servo motor 19 is turned on by the controller to drive the crushing knife for crushing. The crushed particles fall into the receiving box 5 from the discharge opening at the bottom of the crushing box 1. At this time, the electromagnetic roller 12 contacts the bottom wall and side wall of the receiving box 5 during rotation, thereby The plastic particles in the box 5 are stirred, and the electromagnetic roller 12 is turned on by the controller at this time, and the magnetic material in the plastic particles is adsorbed on the surface of the electromagnetic roller 12. When the third rotating shaft 25 rotates, the connecting rod 26 contacts the first pressure sensor 29, and squeezes the elastic pad, thereby triggering the first pressure sensor 29, and transmitting a signal to the controller to automatically close the electromagnetic roller 12. At this time, the electromagnetic roller 12 is located above the recycling box 8. The magnetic material adsorbed on the surface of the electromagnetic roller 12 will automatically fall into the recycling box 8 for collection after losing its magnetic force, and when the connecting rod 26 contacts the first pressure sensor 29, the first servo motor 14 will stop running for a period of time to allow the magnetic material on the electromagnetic roller 12 to fall. After falling, the first servo motor 14 is driven to rotate the third rotating shaft 25 in the opposite direction. At the same time, the connecting rod 26 automatically restores the magnetic state after leaving the first pressure sensor 29, so that the electromagnetic roller 12 rotates along the original path to the storage box 5 to adsorb the magnetic material again, and the plastic particles and magnetic materials in the storage box 5 are separated in turn;

[0032] Through the above, the first servo motor 14 drives the third shaft 25 to drive the electromagnetic roller 12 to rotate to stir the crushed plastic particles, absorb the internally doped magnetic material, and then flip it over the recycling frame 8, and then close the electromagnetic roller 12, so that the magnetic material falls into the recycling frame 8 for collection.

[0033] The second implementation method:

[0034] Figures 1-2 and Figures 6-8It is shown that a dust-proof plate 9 made of elastic material is detachably connected to the top end of the storage box 5, and the dust-proof plate 9 is fixedly connected to the storage box 5 by a clamping plate. A second pressure sensor is installed at the bottom end of the crushing box 1 through an elastic connecting block. A baffle 6 is fixedly connected to the top end of the crushing box 1 by bolts. Symmetric chutes 20 are cut on the top cross-section of the baffle 6, and the inner wall of the chute 20 is made of magnetic material. A blocking cloth 7 is slidably connected in the chute 20. One end of the blocking cloth 7 is fixedly connected to the top of the baffle 6, and the other end of the blocking cloth 7 is fixedly connected to a strip plate 22. An L-shaped sliding rod 21 is installed in the chute 20. A magnetic block 23 is sleeved on the L-shaped sliding rod 21, and the magnetic block 23 is fixedly connected to the bottom of the strip plate 22, and the magnetic block 23 attracts the side wall of the chute 20. A plurality of collar rings 24 are sleeved on the L-shaped sliding rod 21, and the top wall of the collar ring 24 is fixedly connected to the bottom of the blocking cloth 7.

[0035] Working principle: Roughly judge according to the size of the microfibrillated waste plastic prototype to be broken. Drive the strip plate 22 to slide on the L-shaped sliding rod 21 through the magnetic block 23, so as to adjust the expansion and contraction of the blocking cloth 7. At this time, reserve a pre-matched size at the feeding port according to the size of the waste plastic, and the rest of the space is blocked by the blocking cloth 7. When the magnetic block 23 moves to a suitable position, it is attracted and fixed to the inner wall of the chute 20. When crushing the waste plastic, the blocking cloth 7 can block the splashed fragments and powder during crushing, preventing the staff from approaching the crushing box 1 during feeding and avoiding accidental injury caused by fragments splashing on the staff's face. At the same time, after the dust-proof plate 9 is fixedly connected to the top of the storage box 5 by a clamping plate, when the electric push rod 3 pushes the bracket 4 upward, the four electric push rods 3 extend synchronously to keep the bracket 4 in a horizontal state. The dust-proof plate 9 abuts against the pressure sensor at the bottom of the crushing box 1, squeezing the elastic connecting block, thereby triggering the second pressure sensor, transmitting the signal to the controller, and automatically closing the electric push rod 3 to stop pushing. At this time, the dust-proof plate 9 seals and covers the space between the crushing box 1 and the storage box 5, so that the crushed plastic particles will not splash to the ground when falling into the storage box 5. When discharging, two electric push rods 3 on the side far from the discharge port 13 can be opened to push upward, making the storage box 5 inclined for easy discharging of plastic particles. And during the upward push of the electric push rod 3, the dust-proof plate 9 will be slightly squeezed, and the dust-proof plate 9 is made of elastic material and will be adjusted by expansion and contraction during extrusion;

[0036] By adjusting the expansion and contraction of the blocking cloth 7, the size of the feeding port can be controlled, so as to block the top of the crushing box 1 and prevent fragments and powder from splashing on the staff's face.

[0037] Combined with the current actual needs, the above-mentioned implementation method adopted in this application, the scope of protection is not limited to this. Within the knowledge scope of those skilled in the art, various changes made without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. An impurity separation system based on the recycling of microfibrillated waste plastics, comprising a crushing box (1) with a discharge port opened at the bottom, characterized in that: The inner wall of the crushing box (1) is symmetrically and rotatably connected with crushing knives. A second servo motor (19) is installed at the side end of the crushing box (1), and the output end of the second servo motor (19) is connected to the first crushing knife. At the four corners of the bottom end of the crushing box (1), support legs (2) are fixedly connected. Electric push rods (3) are fixedly connected to the inner sides of the four support legs (2). The movable end of the electric push rod (3) is movably connected with a bracket (4). A storage box (5) is detachably connected to the top end of the bracket (4). A discharge port (13) is formed in the side end of the storage box (5). A sealing cover matching the discharge port (13) is rotatably connected to the side wall of the discharge port (13) through a hinge, and the sealing cover is fixed to the side wall of the storage box (5) through a bolt. Limiting openings are symmetrically drilled at the top end of the bracket (4). A strip-shaped block is fixedly connected to the bottom end of the storage box (5), and the strip-shaped block is engaged with the limiting openings. Third rotating shafts (25) are symmetrically and rotatably connected to the inner wall of the storage box (5). Connecting rods (26) are symmetrically fixedly connected to the side walls of the third rotating shafts (25). An electromagnetic roller (12) is rotatably connected between the two connecting rods (26). U-shaped grooves (30) are symmetrically formed in the top cross-section of the storage box (5). A recycling frame (8) is placed in the U-shaped grooves (30), and the recycling frame (8) is located between the two third rotating shafts (25), and the position of the discharge port is on both sides of the recycling frame (8). An angled support plate (28) corresponding to the connecting rod (26) is fixedly connected to the side end of the recycling frame (8). An elastic pad is embedded in the support plate (28). One end of the elastic pad away from the support plate (28) is fixedly connected with a first pressure sensor (29), and the connecting rod (26) rotates through the third rotating shaft (25) and abuts against the first pressure sensor (29).

2. The impurity separation system based on the recycling of microfibrillated waste plastics according to claim 1, characterized in that: Clamping blocks (27) are fixedly connected to the shaft ends of the third rotating shafts (25). Shaft holes (11) are symmetrically drilled in the side end of the storage box (5). Limiting shafts (10) are inserted into the shaft holes (11), and the clamping blocks (27) are engaged with the limiting shafts (10). First rotating shafts (15) are symmetrically and rotatably connected in an embedded manner at one end of the storage box (5) away from the shaft holes (11). A clamping groove (16) is drilled in the middle of the side end of the first rotating shaft (15). A second rotating shaft (17) is fixedly connected to the end of the first rotating shaft (15) outside the storage box (5). A gear (18) is sleeved on the second rotating shaft (17), and the two gears (18) are meshed. A support plate is fixedly connected to the outer side end of the storage box (5). A first servo motor (14) is fixedly connected to the support plate, and the output end of the first servo motor (14) is connected to one of the second rotating shafts (17).

3. The impurity separation system based on the recycling of microfibrillated waste plastics according to claim 1, wherein: A dust-proof plate (9) is detachably connected to the top end of the storage box (5), and the dust-proof plate (9) is fixedly connected to the storage box (5) through a clamping plate. A second pressure sensor is installed at the bottom end of the crushing box (1) through an elastic connecting block.

4. The impurity separation system based on the recycling of microfibrillated waste plastics according to claim 1, wherein: A baffle (6) is fixedly connected to the top end of the crushing box (1) through bolts. Sliding grooves (20) are symmetrically drilled in the top cross-section of the baffle (6), and the inner walls of the sliding grooves (20) are made of magnetic material.

5. The impurity separation system based on the recycling of microfibrillated waste plastics according to claim 4, wherein: A cloth baffle (7) is slidably connected in the sliding groove (20). One end of the cloth baffle (7) is fixedly connected to the top of the baffle plate (6), and the other end of the cloth baffle (7) is fixedly connected to a strip-shaped plate (22).

6. The impurity separation system based on the recycling of microfibrillated waste plastics according to claim 4, characterized in that: An L-shaped sliding rod (21) is installed in the sliding groove (20). A magnetic block (23) is sleeved on the L-shaped sliding rod (21), and the magnetic block (23) is fixedly connected to the bottom of the strip-shaped plate (22), and the magnetic block (23) is attracted to the side wall of the sliding groove (20).

7. An impurity separation system based on the recycling of microfibrillated waste plastics according to claim 6, characterized in that: A plurality of collar rings (24) are sleeved on the L-shaped sliding rod (21), and the top wall of the collar ring (24) is fixedly connected to the bottom of the cloth baffle (7).

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