Waste recovery device for plastic particle production

Abstract

The invention relates to the field of plastic separation and recovery, in particular to a waste recovery device for plastic particle production. The device comprises a rack, a discharging hopper, a plastic separation box, a rotating piece and an electromagnet adsorption mechanism. The plastic separating box is arranged on the rack and comprises a feeding cylinder part, a separating box part, a screening box part, an iron collecting box part and a discharging cylinder part which are integrally connected. The rotating part is rotationally arranged on the separation box part, and a plurality of adsorption grooves uniformly distributed around a central shaft are formed in the outer side; the electromagnet adsorption mechanism produces magnetic attraction force in the cavity, when the rotating piece rotates, the electromagnet adsorption mechanism adsorbs iron materials in the materials into the adsorption groove through the rotating piece, plastics in the materials fall into the screening box part, and when the adsorption groove rotates to face the communicating position of the iron collecting box part and the separating box part, the adsorption groove area loses the magnetic attraction force. And the iron material in the adsorption tank falls into the iron collection box part. According to the device, doped iron materials can be separated out, so that the plastic separation and recovery quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of plastic separation and recycling, in particular to a waste material recycling device for plastic particle production. Background Art

[0002] Waste plastics can be reused through recycling, which generally requires crushing, screening and melting, and then processed into plastic pellets using a granulator.

[0003] Chinese patent announcement number CN219667154U discloses a melting device for processing waste plastics that is easy to recycle. The waste plastics are crushed cyclically until the demand is met, thereby ensuring the melting effect of the waste plastics.

[0004] However, the above technical solution has the following shortcomings:

[0005] Crushed waste plastics may be mixed with iron. If the plastic mixed with iron is melted directly, it will be detrimental to ensuring the quality of the plastic pellets subsequently produced by a pelletizer. Summary of the invention

[0006] The purpose of the present invention is to solve the problems existing in the background technology and to propose a waste material recovery device for plastic granule production which can separate the doped iron material to ensure the quality of plastic separation and recovery.

[0007] The technical solution of the present invention is a waste recovery device for plastic particle production, comprising a frame, a lower hopper, a plastic separation box, a rotating part and an electromagnet adsorption mechanism; the plastic separation box is arranged on the frame, comprising a feed barrel, a separation box part, a screening box part, an iron collection box part and a discharge barrel part which are integrally connected, the feed barrel, the separation box part, the screening box part and the discharge barrel part are connected in sequence from top to bottom, the iron collection box part is connected to the separation box part and is located on the lateral side of the screening box part; the lower hopper is connected to the top of the feed barrel part; the rotating part is rotatably arranged on the separation box part, has a cavity on the inside, and has a plurality of adsorption grooves evenly distributed around the central axis on the outside; the electromagnet adsorption mechanism creates a magnetic attraction in the cavity, when the rotating part rotates, the electromagnet adsorption mechanism adsorbs the iron in the material into the adsorption groove through the rotating part, the plastic in the material falls into the screening box part, when the adsorption groove rotates to the connection point between the iron collection box part and the separation box part, the adsorption groove area loses the magnetic attraction, and the iron in the adsorption groove falls into the iron collection box part.

[0008] Preferably, the cavity includes a central cavity and branch cavities evenly distributed around the central cavity and all connected to the central cavity, and the adsorption groove is a U-shaped open structure.

[0009] Preferably, the separation box part is a circular hollow structure, the outer circumferential surface of the rotating part contacts the inner circumferential surface of the separation box part, a connecting cylinder part is coaxially arranged at one axial end of the rotating part, a fixed cylinder is arranged on the separation box part, the connecting cylinder part is coaxially rotatably arranged on the fixed cylinder, and the connecting cylinder part is rotatably connected to the separation box part.

[0010] Preferably, the electromagnet adsorption mechanism includes a main conducting station coaxially arranged on the fixed cylinder and a plurality of groups of magnetic suction components evenly distributed around the fixed cylinder. The outer peripheral surface of the main conducting station has a groove and forms an arc-shaped contact surface, and the groove faces the connection between the iron collecting box part and the separation box part. The magnetic suction component includes a branch conducting station, a cable, an iron core coil winding and an iron suction plate which are conductively connected in sequence. The branch conducting station is arranged on the inner wall of the central cavity and intermittently slides in contact with the contact surface. The iron suction plate includes a connecting plate part and a bonding plate part made of iron material which are integrally connected, and the bonding plate part is bonded to the inner wall of the branch cavity.

[0011] Preferably, the screening box part is a circular hollow structure, a second rotating shaft is rotatably provided on the screening box part, a swing frame is provided on the second rotating shaft, and the dropping holes are evenly distributed on the swing frame.

[0012] Preferably, a mounting cover is provided on the plastic separation box, a power device drivingly connected to the connecting cylinder is provided on the mounting cover, a driving gear is coaxially provided on the connecting cylinder, a first rotating shaft is rotatably provided on the plastic separation box, a turntable and a driven gear meshing with the driving gear are provided on the first rotating shaft, the turntable is eccentrically rotatably connected to the first connecting rod, the end of the first connecting rod is rotatably connected to the second connecting rod, and the end of the second connecting rod is provided on the second rotating shaft.

[0013] Preferably, it also includes a screening adjustment component, which includes a motor arranged at the bottom of the swing frame, a screw connected to the output end of the motor, an adjustment frame threadedly connected to the screw, and a guide rod arranged at the bottom of the swing frame and slidably connected to the adjustment frame, and the top of the adjustment frame has a filling table adapted to the blanking hole.

[0014] Preferably, a connecting frame is provided at the bottom of the adjusting frame, and a first folding cylinder located on the outer peripheral side of the screw rod is connected between the connecting frame and the adjusting frame, and between the adjusting frame and the motor; an end plate is provided at the bottom end of the guide rod, and a second folding cylinder located on the outer peripheral side of the guide rod is connected between the end plate and the adjusting frame, and between the adjusting frame and the swinging frame.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects:

[0016] The present invention can separate the doped iron materials, thereby ensuring the quality of plastic separation and recovery. The material enters the adsorption tank that rotates to an upward distribution, and the rotating part drives the material in the adsorption tank counterclockwise. The electromagnet adsorption mechanism adsorbs the iron materials in the material on the side wall of the adsorption tank through the magnetic plate. When the adsorption tank rotates toward the screening box part, the plastic in the material falls due to gravity. As the rotating part continues to rotate, when the magnetic plate corresponding to the adsorption tank loses its magnetic attraction, the adsorbed iron materials will fall into the iron collection box part under the action of its own gravity, thereby achieving the separation of plastic and iron materials, which is convenient for the subsequent centralized recycling of plastics. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0018] Figure 2 A partial structural cross-sectional view of an embodiment of the present invention;

[0019] Figure 3 The following is a schematic diagram of the structure of the leading radio station;

[0020] Figure 4 It is a schematic diagram of the connection structure of the magnetic plate, the iron core coil winding, the cable and the sub-conductor platform;

[0021] Figure 5 It is a schematic diagram of the principle structure of the rotation of the rotating part and the swing of the swing frame;

[0022] Figure 6 Schematic diagram of the moving principle structure of the adjusting frame.

[0023] 1. Frame; 2. Lower hopper; 3. Plastic separation box; 31. Feed barrel; 32. Separation box; 33. Screening box; 34. Iron collecting box; 341. Box door; 35. Discharge barrel; 4. Rotating member; 5. Iron absorption plate; 6. Iron core coil winding; 7. Cable; 8. Distribution platform; 9. Leading station; 91. Contact surface; 901. Groove; 10. Fixed cylinder; 11. Mounting cover; 12. Power device; 13. Connecting cylinder; 14. Driving gear; 15. Driven gear; 151. First rotating shaft; 16. Turntable; 17. First connecting rod; 18. Second connecting rod; 19. Second rotating shaft; 20. Swinging frame; 201. Dropping hole; 21. Adjusting frame; 211. Filling platform; 22. Motor; 23. Screw rod; 24. Guide rod; 251. Connecting frame; 252. End plate. DETAILED DESCRIPTION

[0024] Embodiment 1

[0025] like Figure 1-Figure 6As shown, a waste material recovery device for plastic granule production proposed in this embodiment includes a frame 1, a lower hopper 2, a plastic separation box 3, a rotating part 4 and an electromagnet adsorption mechanism.

[0026] The plastic separation box 3 is arranged on the frame 1, and includes an integrally connected feed barrel 31, a separation box 32, a screening box 33, an iron collecting box 34 and a discharge barrel 35. The feed barrel 31, the separation box 32, the screening box 33 and the discharge barrel 35 are sequentially connected from top to bottom. The lower hopper 2 is connected to the top of the feed barrel 31, and the crushed waste plastic is added to the lower hopper 2, and the material enters the separation box 32 through the feed barrel 31.

[0027] The iron collecting box part 34 is communicated with the separation box part 32 and is located at a lateral side of the screening box part 33 . The outer bottom end of the iron collecting box part 34 is rotatably connected to a box door 341 , and a door lock is installed on the box door 341 .

[0028] The rotating member 4 is rotatably arranged on the separation box portion 32, has a cavity inside, and has a plurality of adsorption grooves evenly distributed around the central axis outside. The adsorption grooves are U-shaped open structures, and the side walls of the adsorption grooves are used to adsorb iron materials through an electromagnet adsorption mechanism.

[0029] The electromagnet adsorption mechanism creates a magnetic attraction force in the cavity. When the rotating member 4 rotates counterclockwise, in the process of the adsorption tank rotating from the feed barrel 31 to the screening box 33, the electromagnet adsorption mechanism adsorbs the iron in the material in the adsorption tank through the rotating member 4, and the plastic in the material moves with the rotating member 4. When the adsorption tank rotates to communicate with the screening box 33, the plastic in the material falls into the screening box 33 and is finally discharged downward from the discharge barrel 35. When the adsorption tank rotates from being connected with the screening box 33 to being connected with the iron collecting box 34 and the separation box 32, that is, when the adsorption tank rotates to be connected with the iron collecting box 34, the adsorption tank area loses its magnetic attraction, and the iron in the adsorption tank falls into the iron collecting box 34 due to its own gravity. The iron is collected by the iron collecting box 34. When the iron needs to be cleaned, the door lock is opened, the box door 341 is opened, and the iron in the iron collecting box 34 is cleaned.

[0030] The separation box part 32 is a circular hollow structure, leaving an area connected with the feed barrel part 31, the screening box part 33 and the iron collection box part 34. The outer circumference of the rotating member 4 contacts the inner circumference of the separation box part 32. When the rotating member 4 rotates and transports the material received from the feed barrel part 31, the material is received in the inner side of the adsorption tank, and the separation box part 32 limits the material. A connecting cylinder part 13 is coaxially arranged at one axial end of the rotating member 4, and a fixed cylinder 10 is arranged on the separation box part 32. The connecting cylinder part 13 is coaxially rotatably arranged on the fixed cylinder 10, and the connecting cylinder part 13 is rotatably connected to the separation box part 32. The position of the fixed cylinder 10 remains unchanged, and the connecting cylinder part 13 can rotate, and can drive the rotating member 4 to rotate when rotating.

[0031] The electromagnet adsorption mechanism includes a main station 9 coaxially arranged on the fixed cylinder 10 and a plurality of magnetic adsorption components evenly distributed around the fixed cylinder 10. The main station 9 is externally connected to a wire passing through the fixed cylinder 10, and the wire is connected to an external power source. Figure 2 As shown, the cavity of the rotating member 4 includes a central cavity and branch cavities evenly distributed around the central cavity and all connected to the central cavity, and each branch cavity corresponds to a group of magnetic attraction components.

[0032] The outer peripheral surface of the main station 9 has a groove 901 and forms an arc-shaped contact surface 91, and the groove 901 faces the connection between the iron collecting box part 34 and the separation box part 32. The magnetic suction component includes a sub-conductor 8, a cable 7, an iron core coil winding 6 and an iron absorption plate 5 that are conductively connected in sequence. The sub-conductor 8 is arranged on the inner wall of the central cavity and intermittently slides in contact with the contact surface 91. The iron absorption plate 5 includes a connecting plate part and a bonding plate part made of an integrally connected iron material, and the bonding plate part is bonded to the inner wall of the branch cavity. The magnetic suction component rotates with the rotating part 4, and the main station 9 and the fixed cylinder 10 are stationary. When the sub-conductor 8 in the magnetic suction component contacts the main station 9, the sub-conductor 8 is conductive, and the magnetic suction component is energized to generate magnetic attraction on the iron absorption plate 5. The magnetic attraction of the iron absorption plate 5 can act on the iron material in the material in the adsorption tank through the rotating part 4, and the iron material is adsorbed on the side wall of the adsorption tank. When the sub-conducting stage 8 rotates to face the groove 901, it is separated from the main stage 9, the magnetic attraction of the iron-absorbing plate 5 disappears, and the iron material on the side wall of the adsorption groove falls due to gravity. The rotating member 4 is made of hard insulating materials such as hard plastic or stainless steel. The multiple adsorption grooves on the rotating member 4 are used to receive the materials falling from the feeding barrel 31 in sequence. The amount of materials received each time is limited, which can ensure the adsorption effect of the iron materials in the materials.

[0033] This embodiment can separate the doped iron material, thereby ensuring the quality of plastic separation and recovery. When the material falls from the lower hopper 2 through the feed cylinder 31, it will enter the adsorption groove that rotates to an upward distribution. The rotating member 4 drives the material in the adsorption groove counterclockwise. During this process, the electromagnet adsorption mechanism adsorbs the iron material in the material on the side wall of the adsorption groove through the magnetic plate 5. When the adsorption groove rotates to face the screening box part 33, the plastic in the material falls due to gravity. As the rotating member 4 continues to rotate, when the magnetic plate 5 corresponding to the adsorption groove loses its magnetic attraction, the adsorbed iron material will fall into the iron collecting box part 34 under the action of its own gravity, thereby achieving the separation of plastic and iron.

[0034] Embodiment 2

[0035] like Figure 1-Figure 6As shown, the present embodiment proposes a waste recycling device for plastic granule production. Compared with the first embodiment, in the present embodiment, the screening box part 33 is a circular hollow structure, leaving an area connected with the separation box part 32. The screening box part 33 is rotatably provided with a second rotating shaft 19, and the second rotating shaft 19 is provided with a swing frame 20, and the swing frame 20 is evenly distributed with drop holes 201. The plastic dropped from the adsorption groove of the rotating member 4 will continue to drop through the drop holes 201, and finally discharged downward from the discharge barrel part 35.

[0036] The plastic separation box 3 is provided with a mounting cover 11, and a power device 12 drivingly connected to the connecting cylinder 13 is provided on the mounting cover 11, and the power device 12 is used to drive the connecting cylinder 13 to rotate. A driving gear 14 is coaxially provided on the connecting cylinder 13, and a first rotating shaft 151 is rotatably provided on the plastic separation box 3, and a rotating disk 16 and a driven gear 15 meshingly connected to the driving gear 14 are provided on the first rotating shaft 151, and the rotating disk 16 is eccentrically rotatably connected to a first connecting rod 17, and the end of the first connecting rod 17 is rotatably connected to a second connecting rod 18, and the end of the second connecting rod 18 is provided on a second rotating shaft 19.

[0037] In this embodiment, the power device 12 drives the connecting cylinder 13 to rotate, and the connecting cylinder 13 drives the rotating member 4 to rotate counterclockwise. The rotating member 4 receives the material from the feeding cylinder 31 and conveys the material downward. The connecting cylinder 13 also drives the driven gear 15 to rotate through the driving gear 14, and the driven gear 15 drives the turntable 16 to rotate through the first rotating shaft 151. The turntable 16, the first connecting rod 17, the second connecting rod 18 and the second rotating shaft 19 form a crank rocker mechanism, which can realize the reciprocating swing of the second rotating shaft 19. The second rotating shaft 19 drives the swing frame 20 to swing back and forth. The swing frame 20 lifts the material falling from the adsorption tank back and forth by swinging. When the iron material in the material moves upward, it can re-enter the inner side of the adsorption tank and be adsorbed on the side wall of the adsorption tank by the iron absorption plate 5, thereby further improving the adsorption amount of the iron material. Multiple adsorption troughs receive materials in turn, and the material transfer volume is limited. It can also prevent too much material from falling onto the swing frame 20, avoid the situation where the swing frame 20 cannot effectively lift the material, and avoid the situation where there is too much material, causing the iron material to be difficult to be adsorbed when it is lifted upward.

[0038] Embodiment 3

[0039] like Figure 1-Figure 6As shown, the waste recycling device for plastic granule production proposed in this embodiment, compared with the first embodiment, in this embodiment, further includes a screening adjustment component, which includes a motor 22 arranged at the bottom of the swing frame 20, a screw rod 23 connected to the output end of the motor 22, an adjustment frame 21 threadedly connected to the screw rod 23, and a guide rod 24 arranged at the bottom of the swing frame 20 and slidably connected to the adjustment frame 21. The motor 22 can drive the screw rod 23 to rotate forward and reverse, and the screw rod 23 drives the adjustment frame 21 to move. The guide rod 24 is parallel to the screw rod 23 and can guide the adjustment frame 21 so that the adjustment frame 21 can move in a direction perpendicular to the swing frame 20. The top of the adjustment frame 21 has a filling platform 211 adapted to the blanking hole 201. Before deciding to discharge the plastic through the discharge barrel 35, the filling platform 211 is blocked at the blanking hole 201. When the swing frame 20 lifts the material back and forth, the material will not fall to the discharge barrel 35. The material will undergo multiple magnetic iron removal processes to effectively adsorb the iron in the material. One swing cycle of the swing frame 20 has two lifting processes, which lift the material through the left and right areas respectively, so that the material moves in an inclined direction and is easier to be adsorbed on the side wall of the adsorption tank. After the iron material is completely adsorbed and all collected in the iron collecting box 34, the adjustment frame 21 is adjusted downward, and the filling platform 211 moves downward. A blanking channel is formed between the top of the filling platform 211 and the bottom of the blanking hole 201. When the swing frame 20 and the screening adjustment assembly swing, the plastic can effectively fall down into the discharge barrel 35 through the blanking channel and finally be discharged from the discharge barrel 35.

[0040] When discharging plastic, the position of the adjustment frame 21 can be adjusted multiple times to adjust the drop channels of various specifications with gradually increasing sizes in sequence, so as to discharge the plastic scraps with gradually increasing sizes in sequence, and the plastic scraps with gradually increasing sizes are collected successively by multiple containers under the discharge cylinder 35. Plastic scraps with oversized sizes can be crushed again.

[0041] A connecting frame 251 is provided at the bottom of the adjusting frame 21. A first folding cylinder located on the outer periphery of the screw rod 23 is connected between the connecting frame 251 and the adjusting frame 21 and between the adjusting frame 21 and the motor 22. The screw rod 23 can be protected by the first folding cylinder to prevent plastic scraps from affecting the smooth transmission connection between the structures. An end plate 252 is provided at the bottom of the guide rod 24. A second folding cylinder located on the outer periphery of the guide rod 24 is connected between the end plate 252 and the adjusting frame 21 and between the adjusting frame 21 and the swing frame 20. The guide rod 24 can be protected by the second folding cylinder. The folding cylinder is a pleated cylindrical structure that can be folded and stretched.

[0042] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A waste recovery device for plastic granule production, characterized in that: include: Rack (1); The plastic separation box (3) is arranged on the frame (1), and comprises a feed barrel (31), a separation box (32), a screening box (33), an iron collecting box (34) and a discharge barrel (35) which are integrally connected. The feed barrel (31), the separation box (32), the screening box (33) and the discharge barrel (35) are sequentially connected from top to bottom, and the iron collecting box (34) is connected to the separation box (32) and is located on a lateral side of the screening box (33). A lower hopper (2) connected to the top of the feed cylinder (31); A rotating member (4) is rotatably arranged on the separation box portion (32), has a cavity on the inside, and has a plurality of adsorption grooves evenly distributed around a central axis on the outside; The electromagnet adsorption mechanism generates a magnetic attraction force in the cavity. When the rotating member (4) rotates, the electromagnet adsorption mechanism adsorbs the iron material in the material into the adsorption groove through the rotating member (4), and the plastic in the material falls into the screening box part (33). When the adsorption groove rotates to the connection point between the iron collecting box part (34) and the separation box part (32), the adsorption groove area loses the magnetic attraction force, and the iron material in the adsorption groove falls into the iron collecting box part (34).

2. A waste recycling device for plastic granule production according to claim 1, characterized in that: The cavity comprises a central cavity and branch cavities which are evenly distributed around the central cavity and are all connected with the central cavity, and the adsorption groove is a U-shaped open structure.

3. A waste recycling device for plastic granule production according to claim 2, characterized in that: The separation box part (32) is a circular hollow structure, the outer peripheral surface of the rotating member (4) is in contact with the inner peripheral surface of the separation box part (32), a connecting cylinder part (13) is coaxially arranged at one axial end of the rotating member (4), a fixed cylinder (10) is arranged on the separation box part (32), the connecting cylinder part (13) is coaxially rotatably arranged on the fixed cylinder (10), and the connecting cylinder part (13) is rotatably connected to the separation box part (32).

4. A waste recycling device for plastic granule production according to claim 3, characterized in that: The electromagnet adsorption mechanism comprises a main conducting station (9) coaxially arranged on a fixed cylinder (10) and a plurality of groups of magnetic attraction components uniformly distributed around the fixed cylinder (10); the outer peripheral surface of the main conducting station (9) has a groove (901) and forms an arc-shaped contact surface (91); the groove (901) faces the connection between the iron collecting box part (34) and the separation box part (32); the magnetic attraction component comprises a branch conducting station (8), a cable (7), an iron core coil winding (6) and an iron absorption plate (5) which are conductively connected in sequence; the branch conducting station (8) is arranged on the inner wall of the central cavity and intermittently slides in contact with the contact surface (91); the iron absorption plate (5) comprises a connecting plate part and a bonding plate part made of iron material which are integrally connected; the bonding plate part is bonded to the inner wall of the branch cavity.

5. A waste recycling device for plastic granule production according to claim 3, characterized in that: The screening box part (33) is a circular hollow structure. A second rotating shaft (19) is rotatably arranged on the screening box part (33). A swing frame (20) is arranged on the second rotating shaft (19). The swing frame (20) has evenly distributed material dropping holes (201).

6. A waste recycling device for plastic granule production according to claim 5, characterized in that: The plastic separation box (3) is provided with a mounting cover (11), the mounting cover (11) is provided with a power device (12) drivingly connected to a connecting cylinder (13), a driving gear (14) is coaxially provided on the connecting cylinder (13), a first rotating shaft (151) is rotatably provided on the plastic separation box (3), a rotating disk (16) and a driven gear (15) meshingly connected to the driving gear (14) are provided on the first rotating shaft (151), the rotating disk (16) is eccentrically rotatably connected to a first connecting rod (17), an end of the first connecting rod (17) is rotatably connected to a second connecting rod (18), and an end of the second connecting rod (18) is provided on a second rotating shaft (19).

7. A waste recycling device for plastic granule production according to claim 5, characterized in that: The invention also comprises a screening adjustment component, which comprises a motor (22) arranged at the bottom of the swing frame (20), a screw rod (23) connected to the output end of the motor (22), an adjustment frame (21) threadedly connected to the screw rod (23), and a guide rod (24) arranged at the bottom of the swing frame (20) and slidably connected to the adjustment frame (21), and a filling platform (211) adapted to the blanking hole (201) is provided at the top of the adjustment frame (21).

8. A waste recycling device for plastic granule production according to claim 7, characterized in that: A connecting frame (251) is arranged at the bottom of the adjusting frame (21); a first folding cylinder located on the outer peripheral side of the screw rod (23) is connected between the connecting frame (251) and the adjusting frame (21) and between the adjusting frame (21) and the motor (22); an end plate (252) is arranged at the bottom end of the guide rod (24); a second folding cylinder located on the outer peripheral side of the guide rod (24) is connected between the end plate (252) and the adjusting frame (21) and between the adjusting frame (21) and the swing frame (20).

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