PET bottle flake classifying and screening system

Abstract

The invention discloses a PET bottle flake classifying and screening system, and relates to the technical field of PET bottle flake recycling, the PET bottle flake classifying and screening system comprises a first conveying belt and a mounting roller, a material distributing roller is rotatably arranged in a connecting cylinder, an adjusting mechanism is arranged in an outer box, and first electromagnetic plates are symmetrically arranged on the inner side of the first conveying belt; an electromagnetic roller is arranged in the driving roller at one end of the first conveying belt, an eddy current magnetic roller is arranged in the driving roller at one end of the second conveying belt, a mounting roller is fixedly arranged in the fixing cylinder, second electromagnetic plates are fixedly arranged in a plurality of mounting grooves in the mounting roller, and a sorting mechanism is arranged on the mounting roller. According to the PET bottle chip sorting device, the first electromagnetic plate, the electromagnetic roller and the eddy current magnetic roller are arranged, so that different PET bottle chips are conveniently sorted, meanwhile, the sorting mechanism is arranged, so that the PET bottle chips with iron metal are conveniently subjected to secondary sorting, and an electric push rod and an infrared detector are arranged, so that the sorting efficiency is improved. The discharging amount of the discharging end of the connecting cylinder can be adjusted by adjusting the position of the adjusting plate.

Description

Technical Field

[0001] The invention relates to the technical field of PET bottle flake recycling, in particular to a PET bottle flake classification and screening system. Background Art

[0002] PET plastic is widely used as a packaging material and is made into various plastic bottles, such as cola bottles, mineral water bottles, etc. In order to reduce environmental pollution and improve the secondary utilization rate of resources, the recycled PET bottle flakes are processed and reused for the second time, which is also beneficial to environmental protection. At present, in the production process of PET bottle flakes, PET plastic bottle flakes are washed and dehydrated in sequence after being crushed. However, there are metal parts in PET plastic bottles. After being crushed, there will be metal impurities mixed in the PET bottle flakes. In order to protect the dehydrator, the metal impurities need to be recycled before feeding.

[0003] The announcement number is: CN109877998B, which discloses a metal separation device for PET bottle flakes. The device is provided with a V-shaped plate, so that the charged PET bottle flakes slide down from both sides of the V-shaped plate, so that the charged PET bottle flakes to be separated and the metal impurities can be dispersed; at the same time, the V-shaped plate is driven up and down by a lifting mechanism to break up the falling charged PET bottle flakes, so that more metal impurities can be adsorbed on the magnet. When the device is used, the magnet is used to recover the iron in the PET material. However, in the application of PET bottles, there are not only iron-containing bottle caps but also some aluminum bottle caps, so that when the above-mentioned device is screening, non-ferromagnetic metals will be mixed with the PET bottle flakes. At the same time, when the above-mentioned device adsorbs iron impurities, since the iron metal needs to be adsorbed on the magnet, the PET bottle flakes will pass through the magnet at the same time as the metal impurities when falling, so that in actual use, the PET bottle flakes without metal will drive the metal impurities to fall directly, resulting in poor screening effect.

[0004] Based on this, a PET bottle flake classification and screening system is now provided, which can eliminate the disadvantages of the existing devices. Summary of the invention

[0005] The object of the present invention is to provide a PET bottle flake classification and screening system to solve the problem that the screening effect of metal materials in the background technology is limited.

[0006] To achieve the above object, the present invention provides the following technical solutions: A PET bottle flake classification and screening system comprises a first conveyor belt and a mounting roller, wherein the first conveyor belt is arranged inside an outer box, a plurality of blocking rods are arranged on the first conveyor belt at equal intervals, a connecting cylinder is arranged at the upper end of the outer box in communication with the position corresponding to the first conveyor belt, a material storage box is arranged at the upper end of the connecting cylinder, a material dividing roller is rotatably arranged inside the connecting cylinder, a plurality of material dividing grooves are arranged on the material dividing roller, a swing plate is rotatably arranged inside the outer box at the material discharge end of the connecting cylinder, a torsion spring is arranged at the connection between the swing plate and the inner part of the outer box, a driving assembly for driving the swing plate to swing is arranged on the upper end of the outer box, a second fixed plate is fixedly arranged inside the outer box in correspondence with the position above the first conveyor belt, a spiral roller is arranged on one side of the second fixed plate, and a An adjusting mechanism for adjusting the discharge amount of the connecting cylinder, a first electromagnetic plate is symmetrically provided on the inner side of the first conveyor belt, an electromagnetic roller is provided inside the driving roller at one end of the first conveyor belt, a second conveyor belt is provided inside the outer box and below one end of the first conveyor belt, an eddy current magnetic roller is provided inside the driving roller at one end of the second conveyor belt, a sorting rack is fixedly provided inside the outer box and at one end of the second conveyor belt, a collecting box is fixedly provided inside the outer box and below the first conveyor belt, a baffle is fixedly provided at the discharge end of the collecting box, a fixed cylinder is closely provided at the discharge end of the collecting box, a mounting roller is fixedly provided inside the fixed cylinder, second electromagnetic plates are fixedly provided in several mounting grooves on the mounting roller, and a sorting mechanism for secondary sorting of PET bottle flakes is provided on the mounting roller.

[0007] On the basis of the above technical solution, the present invention also provides the following optional technical solution: In an optional scheme: the driving component includes a first fixed plate, the rotating shafts at both ends of the swinging plate extend to the outside of the outer box, a first fixed plate is fixedly provided on the rotating shaft at one end of the swinging plate, a shift rack is provided on the first fixed plate, the shift rack is fixed on the output end of the first motor, the first motor is fixed on the upper end of the outer box, a driven wheel is fixed on the output end of the first motor, the driven wheel is connected to the driving wheel through a belt, and the driving wheel is fixed on the rotating shaft at one end of the dividing roller.

[0008] In an optional solution: a third fixing plate is fixedly provided on the fixing shaft at the other end of the swing plate, a fourth fixing plate is closely attached to the third fixing plate, and the fourth fixing plate is fixedly provided on one side of the outer box.

[0009] In an optional solution: the adjustment mechanism includes an adjustment plate and an infrared detector, mounting plates are provided on both sides of the first conveyor belt, the infrared detector is fixedly installed in a mounting hole on one side of a mounting plate, a receiver is provided at a position corresponding to the position of the other mounting plate and the infrared detector, the second fixing plate is fixedly installed between the two mounting plates, the spiral roller is rotatably installed between the two mounting plates, the two spiral sheets on the spiral roller are symmetrically arranged, the rotating shaft at one end of the spiral roller extends to the outside of the outer box, the rotating shaft at one end of the spiral roller is fixedly connected to the output end of the second motor, and the The second motor is fixed on one side of the outer box, and several of the material dividing grooves are slidably provided with adjustment plates, and the bottom ends of the adjustment plates are hinged with connecting rods, and the other ends of the connecting rods are hingedly connected to the sliding rods, and one end of the sliding rods is slidably provided with a sliding sleeve, and the sliding sleeve is fixed inside the material dividing roller, and the sliding rod is slidably arranged in the sliding groove at one end of the material dividing roller, and the other end of the sliding rod is rotatably provided with a rotating plate, and the rotating plate is fixed on the output end of the electric push rod, and the electric push rod is fixed on one side of the connecting tube, and the electric push rod and the infrared detector are electrically connected to the external control component.

[0010] In an optional scheme: the sorting mechanism includes a partition, partitions are fixedly provided on the mounting roller at positions corresponding to the positions on both sides of the second electromagnetic plate, slots are provided at positions corresponding to the positions of the fixed cylinder and the second electromagnetic plate, the mounting roller is rotatably arranged inside the outer box, a rotating shaft at one end of the mounting roller is fixedly connected to the output end of the third motor, the third motor is fixedly arranged on one side of the outer box, the fixed cylinder is tightly arranged on the baffle, air-permeable mesh plates are provided on the partitions, a plurality of circular through holes are provided at both ends of the fixed cylinder, conducting tubes are fixedly provided at positions corresponding to both ends of the fixed cylinder and the second electromagnetic plate, the conducting tubes on the same side are rotatably arranged in a rotating hole on one side of a sealing ring, and the two sealing rings are respectively rotated The conductive rings are movable inside the two conductive rings, and a plurality of support rods are fixedly provided on one side of the conductive rings, and the other ends of the support rods are fixedly provided on the inner side of the outer box. The input ends of the two conductive rings are respectively connected with the two output ends of the air pump, and the air pump is fixedly provided inside the outer box. A fixing ring is fixedly provided inside the conductive rings, and one side of the fixing ring is tightly arranged with one end of the conductive pipe, and a notch is provided at a position corresponding to the position of the fixing ring and the baffle, and a material guide plate is provided at a position corresponding to a notch on the fixed cylinder inside the outer box, and the material guide plate is inclined, and a first collecting box is provided inside the outer box and at one end of the material guide plate, and a material stripping component is provided on one side of the conductive ring for facilitating the unloading of the metal adsorbed on the second electromagnetic plate.

[0011] In an optional scheme: the stripping component includes a wear-resistant conductive block, a wear-resistant conductive block is correspondingly provided at one end of the second electromagnetic plate, the wear-resistant conductive block is slidably arranged inside the sliding tube, the sliding tube is fixedly arranged at one end of the mounting roller, a reset spring is provided between the bottom end of the wear-resistant conductive block and one end of the sliding tube, the bottom end of the wear-resistant conductive block is electrically connected to one end of the wire, the other end of the wire is electrically connected to the corresponding input end of the second electromagnetic plate, one end of several of the wear-resistant conductive blocks are tightly attached to the inner side of the control ring, the control ring is composed of a conductive ring and an insulating ring, the conductive ring is arranged at a position corresponding to the baffle position, the insulating ring is arranged at a position corresponding to the guide plate position, a mounting ring is provided on the outside of the control ring, the mounting ring is fixedly arranged on one side of the conduction ring, and the conductive ring is electrically connected to the external power supply component.

[0012] In an optional solution: a third conveyor belt is provided inside the outer box and below the fixed cylinder, one end of the third conveyor belt extends to a position corresponding to one side of the sorting frame, a second collecting box is provided inside the outer box and on one side of the sorting frame, a gathering box is provided inside the outer box and on one side of the sorting frame, and the length of the bottom end of the gathering box is less than the width of the third conveyor belt.

[0013] In an optional scheme: a collecting hopper is provided at one end of the third conveyor belt, one end of the collecting hopper is connected to the interior of a conveying pipe, the conveying pipe is fixed at the bottom end of the outer box, a mounting shaft is rotatably provided inside the conveying pipe, a first spiral plate is fixedly provided on the mounting shaft, one end of the mounting shaft is fixedly connected to the output end of a fourth motor, the fourth motor is fixedly provided at one end of the conveying pipe, a discharging pipe is connected to the conveying pipe, and a screening component for screening PET bottle flakes of different sizes is provided at one end of the discharging pipe.

[0014] In an optional scheme: the screening assembly includes a first screening cylinder, a support frame is rotatably provided at one end of the first screening cylinder, the support frame is fixedly provided on the upper end of the bottom plate, the bottom plate is fixedly provided on one side of the outer box, a plurality of material shifting rods are fixedly provided inside the first screening cylinder, a second screening cylinder is fixedly provided on the outer side of the first screening cylinder, a second spiral plate is fixedly provided on the inner side of the second screening cylinder, a third screening cylinder is fixedly provided on the outer side of the second screening cylinder, a third spiral plate is fixedly provided inside the third screening cylinder, an outer cylinder is rotatably provided on the outer side of the third screening cylinder, a discharge trough is provided at a position corresponding to the upper part of the outer cylinder and the bottom plate, the outer cylinder is fixedly provided on the upper end of the bottom plate, a gear ring is fixedly provided at one end of the first screening cylinder, a gear is meshed on the gear ring, the gear is fixedly provided on the output end of the fifth motor, the fifth motor is fixedly provided on one side of the outer box, the diameter of the sieve hole on the first screening cylinder is larger than the diameter of the sieve hole on the second screening cylinder, the diameter of the sieve hole on the second screening cylinder is larger than the diameter of the sieve hole on the third spiral plate, the length of the first screening cylinder is larger than the length of the second screening cylinder, and the length of the second screening cylinder is larger than the length of the third spiral plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention facilitates the sorting of ferrous metal PET bottle flakes, non-ferrous metal PET bottle flakes and ordinary PET bottle flakes by arranging a first electromagnetic plate, an electromagnetic roller and an eddy current magnetic roller. At the same time, the present invention facilitates the secondary sorting of PET bottle flakes with ferrous metal by arranging a sorting mechanism, and the PET bottle flakes between the two partitions are blown away by gas, and then the ferrous metal is adsorbed by the second electromagnetic plate, thereby increasing the sorting effect of PET bottle flakes with ferrous metal. By arranging a plurality of dividing grooves on the dividing roller, it is convenient to control the discharge amount of each connecting cylinder discharge end to prevent the problem of poor metal PET bottle flake screening effect caused by accumulation of PET bottle flakes. By arranging a spiral roller and a second fixed plate, the PET bottle flakes at the upper end of the first conveyor belt can be evenly spread. By arranging an electric push rod and an infrared detector, when there is material accumulation on one side of the spiral roller, the discharge amount of the connecting cylinder discharge end can be adjusted by adjusting the position of the adjusting plate, thereby increasing the practicality of the PET bottle flake classification and screening system.

[0016] 2. The present invention provides a first screening cylinder, a second screening cylinder and a third screening cylinder, so that it is convenient to screen the PET bottle flakes multiple times, thereby screening out PET bottle flakes of different sizes. In addition, by providing a second spiral plate and a third spiral plate, it is convenient to increase the screening effect of the PET bottle flakes and prevent the PET bottle flakes from directly sliding off. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the internal structure of the outer box of the present invention.

[0019] Figure 3 It is a schematic diagram of the first transmission belt structure of the present invention.

[0020] Figure 4 This is a schematic diagram of the installation of the electric push rod of the present invention.

[0021] Figure 5 It is a schematic diagram of the sliding rod structure of the present invention.

[0022] Figure 6 It is a schematic diagram of the spiral roller structure of the present invention.

[0023] Figure 7 It is a schematic diagram of the installation of the air pump of the present invention.

[0024] Figure 8 This is a schematic diagram of the installation of the second electromagnetic plate of the present invention.

[0025] Fig. 9It is a schematic diagram of the structure of the conducting tube of the present invention.

[0026] Fig.10 It is a schematic diagram of the insulating ring structure of the present invention.

[0027] Fig.11 It is a schematic diagram of the fixing ring structure of the present invention.

[0028] Fig.12 This is a schematic diagram of the installation of the second spiral plate of the present invention.

[0029] Figure numerals: 11 first conveyor belt, 12 outer box, 13 swing plate, 14 torsion spring, 15 shifting frame, 16 material distribution roller, 17 first motor, 18 connecting cylinder, 19 storage box, 20 adjustment plate, 21 connecting rod, 22 sliding rod, 23 electric push rod, 24 infrared detector, 25 spiral roller, 26 second motor, 27 second fixed plate, 28 first electromagnetic plate, 29 electromagnetic roller, 30 second conveyor belt, 31 eddy current magnetic roller, 32 sorting frame, 33 third conveyor belt, 34 collecting box, 35 baffle, 36 fixed cylinder , 37 mounting roller, 38 the third motor, 39 the second electromagnetic plate, 40 wear-resistant conductive block, 41 conductive ring, 42 insulating ring, 43 conducting ring, 44 fixing ring, 45 sealing ring, 46 conducting tube, 47 partition, 48 guide plate, 49 air pump, 50 return spring, 51 transmission tube, 52 first spiral plate, 53 fourth motor, 54 first screening cylinder, 55 material removing rod, 56 gear ring, 57 fifth motor, 58 second screening cylinder, 59 second spiral plate, 60 third screening cylinder, 61 third spiral plate, 62 outer cylinder. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. Embodiment 1:

[0031] In one embodiment, Figure 1-Figure 12As shown, a PET bottle flake classification and screening system includes a first conveyor belt 11 and a mounting roller 37, the first conveyor belt 11 is arranged inside an outer box 12, a plurality of blocking rods are arranged at equal intervals on the first conveyor belt 11, a connecting cylinder 18 is connected to the upper end of the outer box 12 at a position corresponding to the position of the first conveyor belt 11, a storage box 19 is connected to the upper end of the connecting cylinder 18, a dividing roller 16 is rotatably arranged inside the connecting cylinder 18, a plurality of dividing grooves are arranged on the dividing roller 16, a swing plate 13 is rotatably arranged inside the outer box 12 at the discharge end of the connecting cylinder 18, a torsion spring 14 is arranged at the connection between the swing plate 13 and the inner part of the outer box 12, a driving component for driving the swing plate 13 to swing is arranged at the upper end of the outer box 12, a second fixed plate 27 is fixedly arranged inside the outer box 12 at a position corresponding to the upper part of the first conveyor belt 11, a spiral roller 25 is arranged on one side of the second fixed plate 27, and an adjusting mechanism for adjusting the discharge amount of the connecting cylinder 18 is arranged inside the outer box 12 Structure, a first electromagnetic plate 28 is symmetrically provided on the inner side of the first conveyor belt 11, an electromagnetic roller 29 is provided inside the driving roller at one end of the first conveyor belt 11, a second conveyor belt 30 is provided inside the outer box 12 and below one end of the first conveyor belt 11, an eddy current magnetic roller 31 is provided inside the driving roller at one end of the second conveyor belt 30, a sorting frame 32 is fixedly provided inside the outer box 12 and at one end of the second conveyor belt 30, a collecting box 34 is fixedly provided inside the outer box 12 and below the first conveyor belt 11, a baffle 35 is fixedly provided at the discharging end of the collecting box 34, a fixed cylinder 36 is closely provided at the discharging end of the collecting box 34, a mounting roller 37 is fixedly provided inside the fixed cylinder 36, a second electromagnetic plate 39 is fixedly provided in a plurality of mounting grooves on the mounting roller 37, a sorting mechanism for secondary sorting of PET bottle flakes is provided on the mounting roller 37, the discharging amount of the discharging end of the connecting cylinder 18 is conveniently adjusted by the adjusting mechanism, and the sorting mechanism is convenient for secondary sorting of iron metal; The driving assembly includes a first fixed plate, and the rotating shafts at both ends of the swing plate 13 extend to the outside of the outer box 12. A first fixed plate is fixedly provided on the rotating shaft at one end of the swing plate 13. A shifting frame 15 is provided on the first fixed plate. The shifting frame 15 is fixedly provided on the output end of a first motor 17. The first motor 17 is fixedly provided on the upper end of the outer box 12. A driven wheel is fixedly provided on the output end of the first motor 17. The driven wheel is connected to the driving wheel through a belt. The driving wheel is fixedly provided on the rotating shaft at one end of a material dividing roller 16. When in use, when it is necessary to sort the PET bottle flakes, the PET bottle flakes to be sorted are placed in the storage box 19, and then the first motor 17 is started. The output end of the motor 17 drives the dividing roller 16 to rotate through a belt. When the dividing trough on the dividing roller 16 is aligned with the discharge end of the storage box 19, the PET bottle flakes inside the storage box 19 fall into the dividing trough. When the dividing trough rotates to the discharge end of the connecting cylinder 18, the PET bottle flakes fall on the upper end of the swing plate 13. At the same time, the output end of the first motor 17 drives the shifting frame 15 to rotate. The shifting frame 15 shifts the first fixed plate to drive the swinging plate 13 to swing at a fixed angle. Then the shifting frame 15 is separated from the first fixed plate. Under the action of the torsion spring 14, the swinging plate 13 rotates to the initial position. As the shifting frame 15 intermittently cooperates with the first fixed plate, the swinging plate 13 swings intermittently, so that the PET bottle flakes are spread on the upper end of the first conveyor belt 11.

[0032] A third fixing plate is fixed on the fixed shaft at the other end of the swing plate 13, and a fourth fixing plate is tightly attached to the third fixing plate. The fourth fixing plate is fixed on one side of the outer box 12. When in use, when the swing plate 13 is in an initial state, the third fixing plate is tightly attached to the fourth fixing plate to support the swing plate 13.

[0033] The adjustment mechanism includes an adjustment plate 20 and an infrared detector 24. Mounting plates are provided on both sides of the first conveyor belt 11. The infrared detector 24 is fixed in a mounting hole on one side of a mounting plate. A receiver is provided at a position corresponding to the position of the other mounting plate and the infrared detector 24. The second fixing plate 27 is fixed between the two mounting plates. The spiral roller 25 is rotatably provided between the two mounting plates. The two spiral sheets on the spiral roller 25 are symmetrically arranged. The rotating shaft at one end of the spiral roller 25 extends to the outside of the outer box 12. The rotating shaft at one end of the spiral roller 25 is connected to the second The output end of the motor 26 is fixedly connected, the second motor 26 is fixedly arranged on one side of the outer box 12, and an adjustment plate 20 is slidably arranged in a plurality of the material distribution grooves, and a connecting rod 21 is hinged at the bottom end of the adjustment plate 20, and the other end of the connecting rod 21 is hinged to a sliding rod 22, and a sliding sleeve is slidably arranged at one end of the sliding rod 22, and the sliding sleeve is fixedly arranged inside the material distribution roller 16, and the sliding rod 22 is slidably arranged in the sliding groove at one end of the material distribution roller 16, and a rotating plate is rotatably arranged at the other end of the sliding rod 22, and the rotating plate is fixedly arranged on the output end of the electric push rod 23 The electric push rod 23 is fixedly arranged on one side of the connecting tube 18. The electric push rod 23 and the infrared detector 24 are both electrically connected to the external control component. When in use, after the PET bottle flakes are spread on the upper end of the first conveyor belt 11 by the swing plate 13, since a plurality of blocking bars are arranged on the upper end of the first conveyor belt 11, the first conveyor belt 11 can drive the PET bottle flakes to move. When the PET bottle flakes move to one side of the spiral roller 25, the second motor 26 drives the spiral roller 25 to rotate, and the spiral roller 25 evenly spreads the PET bottle flakes on the upper end of the first conveyor belt 11. At the same time, the second fixed The plate 27 can intercept the PET bottle flakes that are higher than the height of the blocking rod to the side of the second fixed plate 27. When too many PET bottle flakes are piled up on one side of the spiral roller 25, the piled up PET bottle flakes will block the transmitting end of the infrared detector 24, and the receiver cannot receive the signal, so that the external control component controls the electric push rod 23 to start, and the output end of the electric push rod 23 drives the sliding rod 22 to move. During the movement of the sliding rod 22, the adjusting plate 20 is driven to move in the material distribution trough through the connecting rod 21, so that the volume of the material distribution trough is adjusted, so that the discharge amount of the connecting cylinder 18 at the discharge end is adjusted.

[0034] The sorting mechanism includes a partition 47, and the partitions 47 are fixedly provided on the mounting roller 37 at positions corresponding to the positions on both sides of the second electromagnetic plate 39. The fixed cylinder 36 is provided with notches at positions corresponding to the positions of the second electromagnetic plate 39. The mounting roller 37 is rotatably arranged inside the outer box 12. The rotating shaft at one end of the mounting roller 37 is fixedly connected to the output end of the third motor 38. The third motor 38 is fixedly arranged on one side of the outer box 12. The fixed cylinder 36 is tightly arranged with the baffle 35. The partition 47 is provided with a breathable mesh plate. A plurality of circular perforations are provided at both ends of the fixed cylinder 36. A conducting tube 46 is fixedly provided at positions corresponding to both ends of the fixed cylinder 36 and the second electromagnetic plate 39. The conducting tube 46 on the same side is rotatably arranged in a rotating hole on one side of a sealing ring 45 , the two sealing rings 45 are rotatably arranged inside the two conducting rings 43 respectively, a plurality of support rods are fixedly arranged on one side of the conducting rings 43, and the other ends of the support rods are fixedly arranged on the inner side of the outer box 12, the input ends of the two conducting rings 43 are respectively connected with the two output ends of the air pump 49, the air pump 49 is fixedly arranged inside the outer box 12, a fixing ring 44 is fixedly arranged inside the conducting ring 43, one side of the fixing ring 44 is tightly arranged with one end of the conducting pipe 46, a notch is arranged at the position corresponding to the fixing ring 44 and the baffle 35, a guide plate 48 is arranged at the position corresponding to a notch on the fixing cylinder 36 inside the outer box 12, and the guide plate 48 is arranged obliquely, a first collecting box is arranged inside the outer box 12 and at one end of the guide plate 48, and the conducting ring A stripping assembly is provided on one side of 43 for facilitating the unloading of the metal adsorbed on the second electromagnetic plate 39. When in use, when the PET bottle flakes follow the first conveyor belt 11 to the position corresponding to the first electromagnetic plate 28 located above, the first electromagnetic plate 28 adsorbs the iron metal in the PET bottle flakes, and under the action of the blocking rod, the PET bottle flakes with iron metal follow the first conveyor belt 11 to move. Under the action of the two first electromagnetic plates 28 and one electromagnetic roller 29, the PET bottle flakes with iron metal can follow the first conveyor belt 11 to move below the first conveyor belt 11. When the PET bottle flakes with iron metal are separated from the first electromagnetic plate 28, the PET bottle flakes fall into the collection box 34, and at the same time, the PET bottle flakes without metal and the PET bottle flakes with non-ferromagnetic metal adsorbent are removed. After the PET bottle flakes with ferrous metals move to one end of the first conveyor belt 11, they fall on the upper end of the second conveyor belt 30. The second conveyor belt 30 drives the PET bottle flakes to move. When the PET bottle flakes move to one end of the second conveyor belt 30, under the action of the electromagnetic roller 29, the PET bottle flakes with non-ferrous metals jump, so that they are automatically separated on one side of the sorting rack 32, and the PET bottle flakes without metals fall on the other side of the sorting rack 32 under the action of gravity. When the third motor 38 drives the fixed cylinder 36 and the mounting roller 37 to rotate, so that the notch on the fixed cylinder 36 is aligned with the discharge end of the collecting box 34, the PET bottle flakes with ferrous metals fall on the upper end of the second electromagnetic plate 39, and then the mounting roller 37 rotates again. When the notch on the fixed cylinder 36 is completely closed by the baffle 35,Start the air pump 49, and the output end of the air pump 49 delivers gas to the inside of the conduction ring 43. At this time, one end of the remaining conduction tubes 46 is tightly attached to one side of the fixed ring 44, so that the gas inside the conduction ring 43 does not pass through the conduction tube 46 to enter between the two partitions 47, and the end of the conduction tube 46 aligned with the baffle 35 is not tightly attached to one side of the fixed ring 44, so that the gas inside the conduction ring 43 enters between the two partitions 47. Since the notch of the fixed cylinder 36 is closed by the baffle 35, the two conduction tubes 46 generate convection, so that the PET bottle pieces on the upper end of the second electromagnetic plate 39 are scattered. After being scattered, the second electromagnetic plate 39 is energized, so that the PET bottle pieces with iron metal are adsorbed.

[0035] The stripping assembly includes a wear-resistant conductive block 40, and a wear-resistant conductive block 40 is correspondingly provided at one end of the second electromagnetic plate 39. The wear-resistant conductive block 40 is slidably arranged inside the sliding tube, and the sliding tube is fixedly arranged at one end of the mounting roller 37. A reset spring 50 is provided between the bottom end of the wear-resistant conductive block 40 and one end of the sliding tube. The bottom end of the wear-resistant conductive block 40 is electrically connected to one end of the wire, and the other end of the wire is electrically connected to the corresponding input end of the second electromagnetic plate 39. One end of several wear-resistant conductive blocks 40 are tightly attached to the inner side of the control ring, and the control ring is composed of a conductive ring 41 and an insulating ring 42. The conductive ring 41 is arranged at a position corresponding to the position of the baffle 35, and the insulating ring 42 is arranged at a position corresponding to the position of the guide plate 48. A mounting ring is provided on the outside of the control ring, and the mounting ring is fixedly arranged on one side of the conduction ring 43. The ring 41 is electrically connected to the external power supply component. During use, when the installation roller 37 drives the PET bottle flakes to rotate to the position of the baffle 35, the wear-resistant conductive block 40 and the conductive ring 41 are rubbed tightly together, so that the corresponding second electromagnetic plate 39 is energized, thereby adsorbing the ferrous metal PET bottle flakes. When the notch on the fixed cylinder 36 is separated from the baffle 35, the PET bottle flakes without ferrous metal fall off from between the two partitions 47 under the action of gravity. Then, when the notch on the fixed cylinder 36 rotates to the corresponding position of the guide plate 48, the wear-resistant conductive block 40 is separated from the conductive ring 41 and rubbed tightly against the inner side of the insulating ring 42, so that the second electromagnetic plate 39 is disconnected from the power supply, and the magnetism of the second electromagnetic plate 39 disappears, so that the ferrous metal PET bottle flakes adsorbed on the upper end of the second electromagnetic plate 39 fall on the guide plate 48, and then fall into the first collection box for collection.

[0036] A third conveyor belt 33 is provided inside the outer box 12 and below the fixed cylinder 36, and one end of the third conveyor belt 33 extends to a position corresponding to one side of the sorting frame 32, and a second collecting box is provided inside the outer box 12 and on one side of the sorting frame 32, and a gathering box is provided inside the outer box 12 and on one side of the sorting frame 32, and the bottom end length of the gathering box is less than the width of the third conveyor belt 33. When in use, after the PET bottle flakes without metal pass through the sorting frame 32, the PET bottle flakes fall on the upper end of the third conveyor belt 33, and the PET bottle flakes screened again by the second electromagnetic plate 39 all fall on the upper end of the third conveyor belt 33, so that the PET bottle flakes without metal are uniformly collected. It is worth noting that the first conveyor belt 11, the second conveyor belt 30 and the third conveyor belt 33 in the present application all adopt existing components, which will not be repeated here. Embodiment 2:

[0037] The difference from Example 1 is that a collecting hopper is provided at one end of the third conveyor belt 33, and one end of the collecting hopper is connected to the inside of a conveying pipe 51. The conveying pipe 51 is fixedly arranged at the bottom end of the outer box 12. A mounting shaft is rotatably provided inside the conveying pipe 51, and a first spiral plate 52 is fixedly arranged on the mounting shaft. One end of the mounting shaft is fixedly connected to the output end of a fourth motor 53. The fourth motor 53 is fixedly arranged at one end of the conveying pipe 51. A discharging pipe is connected to the conveying pipe 51, and a screening component for screening PET bottle flakes of different sizes is provided at one end of the discharging pipe. When in use, after the PET bottle flakes without metal are transported to the inside of the collecting hopper through the third conveyor belt 33, the first spiral plate 52 transports the PET bottle flakes to one end of the conveying pipe 51 and discharges them through the discharging pipe. Subsequently, the PET bottle flakes of different sizes can be screened through the screening component.

[0038] The screening assembly includes a first screening cylinder 54, one end of which is rotatably provided with a support frame, and the support frame is fixedly arranged on the upper end of the bottom plate, and the bottom plate is fixedly arranged on one side of the outer box 12. A plurality of material-pickling rods 55 are fixedly arranged inside the first screening cylinder 54, a second screening cylinder 58 is fixedly arranged on the outer side of the first screening cylinder 54, a second spiral plate 59 is fixedly arranged on the inner side of the second screening cylinder 58, a third screening cylinder 60 is fixedly arranged on the outer side of the second screening cylinder 58, a third spiral plate 61 is fixedly arranged inside the third screening cylinder 60, an outer cylinder 62 is rotatably provided on the outer side of the third screening cylinder 60, a discharge trough is provided at a position corresponding to the outer cylinder 62 and above the bottom plate, and the outer cylinder 62 is fixedly arranged on the upper end of the bottom plate, a gear ring 56 is fixedly arranged on one end of the first screening cylinder 54, a gear is meshed on the gear ring 56, and the gear is fixedly arranged on the output end of the fifth motor 57, and the fifth motor The machine 57 is fixedly arranged at one side of the outer box 12. The diameter of the sieve hole on the first screening cylinder 54 is larger than the diameter of the sieve hole on the second screening cylinder 58, the diameter of the sieve hole on the second screening cylinder 58 is larger than the diameter of the sieve hole on the third spiral plate 61, the length of the first screening cylinder 54 is larger than the length of the second screening cylinder 58, and the length of the second screening cylinder 58 is larger than the length of the third spiral plate 61. When in use, when the discharge pipe discharges the PET bottle flakes into the first screening cylinder 54, the output end of the fifth motor 57 drives the gear to rotate, and the gear engages with the gear ring 56 to drive the first screening cylinder 54 to rotate. At the same time, the second screening cylinder 58 and the third screening cylinder 60 rotate with the first screening cylinder 54. Several material-pickling rods 55 inside the first screening cylinder 54 can lift the PET bottle flakes, and then the first screening cylinder 54, the second screening cylinder 58 and the third screening cylinder 60 respectively intercept and screen the PET bottle flakes, thereby screening PET bottle flakes of different sizes.

[0039] The above embodiment discloses a PET bottle flake classification and screening system, wherein, when the PET bottle flakes need to be sorted, the PET bottle flakes to be sorted are placed in the storage box 19, and then the first motor 17 is started. When the dividing trough on the dividing roller 16 is aligned with the discharge end of the storage box 19, the PET bottle flakes in the storage box 19 fall into the dividing trough. When the dividing trough rotates to the discharge end of the connecting cylinder 18, the PET bottle flakes fall on the upper end of the swing plate 13, and the swing frame 15 causes the swing plate 13 to swing intermittently, so that the PET bottle flakes are spread on the upper end of the first conveyor belt 11. When the PET bottle flakes move to one side of the spiral roller 25, the second motor 26 drives the spiral roller 25 to rotate, and the spiral roller 25 evenly spreads the PET bottle flakes on the upper end of the first conveyor belt 11. The spiral roller 25 and the second solid The fixed plate 27 can make the PET bottle flakes evenly spread on the upper end of the first conveyor belt 11. The PET bottle flakes follow the first conveyor belt 11 to the position corresponding to the first electromagnetic plate 28 located above. The first electromagnetic plate 28 absorbs the iron metal in the PET bottle flakes. When the PET bottle flakes with iron metal separate from the first electromagnetic plate 28, the PET bottle flakes fall into the collecting box 34. At the same time, the PET bottle flakes without metal and the PET bottle flakes with non-ferromagnetic metal move to one end of the first conveyor belt 11 and then fall on the upper end of the second conveyor belt 30. Under the action of the electromagnetic roller 29, the PET bottle flakes with non-ferromagnetic metal jump, so that they are automatically separated on one side of the sorting rack 32, and the PET bottle flakes without metal fall on the other side of the sorting rack 32 under the action of gravity. When the notch on the fixed cylinder 36 is aligned with the discharge end of the collecting box 34, the PET bottle flakes with iron metal fall on the upper end of the second electromagnetic plate 39, and then the mounting roller 37 rotates again. When the notch on the fixed cylinder 36 is completely closed by the baffle 35, the air pump 49 is started, and the output end of the air pump 49 conveys gas to the inside of the conducting ring 43. At this time, one end of the remaining conducting pipes 46 is tightly attached to one side of the fixed ring 44, so that the internal gas of the conducting ring 43 does not pass through the conducting pipe 46 to enter between the two partitions 47, and one end of the conducting pipe 46 aligned with the position of the baffle 35 is not tightly attached to one side of the fixed ring 44, so that the internal gas of the conducting ring 43 enters between the two partitions 47. Since the notch of the fixed cylinder 36 is closed by the baffle 35, the two conducting pipes 46 generate convection, so that the PET bottle flakes on the upper end of the second electromagnetic plate 39 are broken up. At the same time, when the mounting roller 37 drives the PET bottle flakes to rotate to the position of the baffle 35, the wear-resistant conductive block 40 and the conductive ring 41 rub tightly The second electromagnetic plate 39 is electrically attached, so that the corresponding second electromagnetic plate 39 is electrified, thereby adsorbing the PET bottle flakes with iron metal. When the notch on the fixed cylinder 36 is separated from the baffle 35, the PET bottle flakes without iron metal are separated from between the two partitions 47 and fall down under the action of gravity. Then, when the notch on the fixed cylinder 36 rotates to the position corresponding to the guide plate 48, the wear-resistant conductive block 40 is separated from the conductive ring 41 and rubs and sticks to the inner side of the insulating ring 42, so that the second electromagnetic plate 39 is disconnected from the power supply, and the magnetism of the second electromagnetic plate 39 disappears, so that the PET bottle flakes with iron metal adsorbed on the upper end of the second electromagnetic plate 39 fall on the guide plate 48, and then fall into the first collection box for collection. After the PET bottle flakes without metal pass through the sorting rack 32, the PET bottle flakes fall on the upper end of the third conveyor belt 33. The PET bottle flakes screened by the second electromagnetic plate 39 fall on the upper end of the third conveyor belt 33, so that the PET bottle flakes without metal are uniformly collected. When the discharge pipe discharges the PET bottle flakes into the first screening cylinder 54, the output end of the fifth motor 57 drives the gear to rotate, and the gear engages with the gear ring 56 to drive the first screening cylinder 54 to rotate. At the same time, the second screening cylinder 58 and the third screening cylinder 60 rotate with the first screening cylinder 54. Several material-pickling rods 55 on the inside of the first screening cylinder 54 can lift the PET bottle flakes. Then the first screening cylinder 54, the second screening cylinder 58 and the third screening cylinder 60 respectively intercept and screen the PET bottle flakes, thereby screening PET bottle flakes of different sizes.

[0040] When too many PET bottle flakes are piled up on one side of the spiral roller 25, the piled PET bottle flakes will block the transmitting end of the infrared detector 24, and the receiver cannot receive the signal, so that the external control component controls the electric push rod 23 to start, and the output end of the electric push rod 23 drives the sliding rod 22 to move. During the movement of the sliding rod 22, the adjusting plate 20 is driven to move in the material distribution trough through the connecting rod 21, so that the volume of the material distribution trough is adjusted, so that the discharge amount of the connecting cylinder 18 at the discharge end is adjusted.

[0041] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A PET bottle flake classification and screening system, comprising a first conveyor belt (11) and a mounting roller (37), wherein the first conveyor belt (11) is arranged inside an outer box (12), a plurality of blocking bars are arranged on the first conveyor belt (11) at equal intervals, a connecting cylinder (18) is arranged at the upper end of the outer box (12) in communication with a position corresponding to the first conveyor belt (11), a material storage box (19) is arranged at the upper end of the connecting cylinder (18), a material distribution roller (16) is rotatably arranged inside the connecting cylinder (18), a plurality of material distribution grooves are arranged on the material distribution roller (16), a swing plate (13) is rotatably arranged inside the outer box (12) and at the material discharge end of the connecting cylinder (18), a torsion spring (14) is arranged at the connection between the swing plate (13) and the inner part of the outer box (12), and a driving component for driving the swing plate (13) to swing is arranged at the upper end of the outer box (12), characterized in that: A second fixed plate (27) is fixedly provided inside the outer box (12) at a position corresponding to the position above the first conveyor belt (11); a spiral roller (25) is provided on one side of the second fixed plate (27); an adjusting mechanism for adjusting the discharge amount of the connecting cylinder (18) is provided inside the outer box (12); a first electromagnetic plate (28) is symmetrically provided inside the first conveyor belt (11); an electromagnetic roller (29) is provided inside the driving roller at one end of the first conveyor belt (11); a second conveyor belt (30) is provided inside the outer box (12) and below one end of the first conveyor belt (11); an eddy current roller (29) is provided inside the driving roller at one end of the second conveyor belt (30); A magnetic roller (31), a sorting frame (32) is fixedly provided inside the outer box (12) and at one end of the second conveyor belt (30), a collecting box (34) is fixedly provided inside the outer box (12) and below the first conveyor belt (11), a baffle (35) is fixedly provided at the discharge end of the collecting box (34), a fixed cylinder (36) is closely provided at the discharge end of the collecting box (34), a mounting roller (37) is fixedly provided inside the fixed cylinder (36), a second electromagnetic plate (39) is fixedly provided in a plurality of mounting grooves on the mounting roller (37), and a sorting mechanism for secondary sorting of PET bottle flakes is provided on the mounting roller (37).

2. A PET bottle flakes classification and screening system according to claim 1, characterized in that: The driving assembly comprises a first fixed plate, the rotating shafts at both ends of the swing plate (13) extend to the outside of the outer box (12), the first fixed plate is fixedly provided on the rotating shaft at one end of the swing plate (13), the first fixed plate is matched with a shifting frame (15), the shifting frame (15) is fixedly provided on the output end of a first motor (17), the first motor (17) is fixedly provided on the upper end of the outer box (12), a driven wheel is fixedly provided on the output end of the first motor (17), the driven wheel is connected to the driving wheel through a belt, and the driving wheel is fixedly provided on the rotating shaft at one end of the material distribution roller (16).

3. A PET bottle flakes classification and screening system according to claim 2, characterized in that: A third fixing plate is fixedly provided on the fixed shaft at the other end of the swing plate (13), a fourth fixing plate is closely attached to the third fixing plate, and the fourth fixing plate is fixedly provided on one side of the outer box (12).

4. A PET bottle flakes classification and screening system according to claim 1, characterized in that: The adjustment mechanism comprises an adjustment plate (20) and an infrared detector (24), mounting plates are provided on both sides of the first conveyor belt (11), the infrared detector (24) is fixedly arranged in a mounting hole on one side of one mounting plate, a receiver is provided at a position corresponding to the position of the other mounting plate and the infrared detector (24), the second fixing plate (27) is fixedly arranged between the two mounting plates, the spiral roller (25) is rotatably arranged between the two mounting plates, the two spiral plates on the spiral roller (25) are symmetrically arranged, the rotating shaft at one end of the spiral roller (25) extends to the outside of the outer box (12), the rotating shaft at one end of the spiral roller (25) is fixedly connected to the output end of the second motor (26), and the second motor (26) is fixedly arranged in the outer box. (12) On one side, several of the material dividing grooves are slidably provided with adjustment plates (20), the bottom ends of the adjustment plates (20) are hinged with connecting rods (21), the other ends of the connecting rods (21) are hingedly connected to the sliding rods (22), one end of the sliding rods (22) is slidably provided with a sliding sleeve, the sliding sleeve is fixedly arranged inside the material dividing roller (16), the sliding rod (22) is slidably arranged in the sliding groove at one end of the material dividing roller (16), the other end of the sliding rod (22) is rotatably provided with a rotating plate, the rotating plate is fixedly arranged on the output end of the electric push rod (23), the electric push rod (23) is fixedly arranged on one side of the connecting tube (18), and the electric push rod (23) and the infrared detector (24) are both electrically connected to the external control component.

5. A PET bottle flakes classification and screening system according to claim 1, characterized in that: The sorting mechanism comprises a partition (47), the partitions (47) are fixedly provided on the mounting roller (37) at positions corresponding to both sides of the second electromagnetic plate (39), the fixed cylinder (36) is provided with notches at positions corresponding to the second electromagnetic plate (39), the mounting roller (37) is rotatably arranged inside the outer box (12), the rotating shaft at one end of the mounting roller (37) is fixedly connected to the output end of the third motor (38), the third motor (38) is fixedly arranged on one side of the outer box (12), the fixed cylinder (36) is closely arranged with the baffle (35), the partitions (47) are provided with air-permeable mesh plates, the two ends of the fixed cylinder (36) are provided with a plurality of circular through holes, the two ends of the fixed cylinder (36) and the second electromagnetic plate (39) are fixedly provided with conduction pipes (46), the conduction pipes (46) on the same side are rotatably arranged in a rotation hole on one side of a sealing ring (45), and the two sealing rings (45) are respectively rotatably arranged A plurality of support rods are fixedly provided on one side of the two conducting rings (43), and the other ends of the support rods are fixedly provided on the inner side of the outer box (12). The input ends of the two conducting rings (43) are respectively connected to the two output ends of the air pump (49). The air pump (49) is fixedly provided on the inner side of the outer box (12). A fixing ring (44) is fixedly provided on the inner side of the conducting rings (43). One side of the fixing ring (44) is tightly arranged with one end of the conducting tube (46). A notch is provided at a position corresponding to the position of the fixing ring (44) and the baffle (35). A guide plate (48) is provided on the inner side of the outer box (12) at a position corresponding to a notch on the fixing tube (36). The guide plate (48) is arranged in an inclined manner. A first collecting box is provided on the inner side of the outer box (12) and at one end of the guide plate (48). A stripping assembly for facilitating the unloading of metal adsorbed on the second electromagnetic plate (39) is provided on one side of the conducting ring (43).

6. A PET bottle flakes classification and screening system according to claim 5, characterized in that: The stripping assembly comprises a wear-resistant conductive block (40), one end of each of the second electromagnetic plates (39) is provided with a corresponding wear-resistant conductive block (40), the wear-resistant conductive block (40) is slidably arranged inside a sliding tube, the sliding tube is fixedly arranged at one end of a mounting roller (37), a return spring (50) is arranged between the bottom end of the wear-resistant conductive block (40) and one end of the sliding tube, the bottom end of the wear-resistant conductive block (40) is electrically connected to one end of a wire, the other end of the wire is electrically connected to the corresponding input end of the second electromagnetic plate (39), one end of a plurality of the wear-resistant conductive blocks (40) are tightly attached to the inner side of a control ring, the control ring is composed of a conductive ring (41) and an insulating ring (42), the conductive ring (41) is arranged at a position corresponding to the baffle (35), the insulating ring (42) is arranged at a position corresponding to the guide plate (48), a mounting ring is arranged on the outside of the control ring, the mounting ring is fixedly arranged on one side of the conduction ring (43), and the conductive ring (41) is electrically connected to an external power supply component.

7. A PET bottle flakes classification and screening system according to claim 6, characterized in that: A third conveyor belt (33) is provided inside the outer box (12) and below the fixed cylinder (36); one end of the third conveyor belt (33) extends to a position corresponding to one side of the sorting frame (32); a second collecting box is provided inside the outer box (12) and on one side of the sorting frame (32); a gathering box is provided inside the outer box (12) and on one side of the sorting frame (32); the length of the bottom end of the gathering box is less than the width of the third conveyor belt (33).

8. A PET bottle flakes classification and screening system according to claim 7, characterized in that: A collecting hopper is provided at one end of the third conveyor belt (33), one end of the collecting hopper is communicated with the interior of a conveying pipe (51), the conveying pipe (51) is fixedly arranged at the bottom end of the interior of the outer box (12), a mounting shaft is rotatably arranged inside the conveying pipe (51), a first spiral plate (52) is fixedly arranged on the mounting shaft, one end of the mounting shaft is fixedly connected to the output end of a fourth motor (53), the fourth motor (53) is fixedly arranged at one end of the conveying pipe (51), a discharging pipe is communicated with the conveying pipe (51), and a screening component for screening PET bottle flakes of different sizes is provided at one end of the discharging pipe.

9. A PET bottle flakes classification and screening system according to claim 8, characterized in that: The screening assembly comprises a first screening cylinder (54), one end of which is rotatably provided with a support frame, the support frame being fixedly provided on the upper end of a bottom plate, the bottom plate being fixedly provided on one side of an outer box (12), a plurality of material shifting rods (55) being fixedly provided inside the first screening cylinder (54), a second screening cylinder (58) being fixedly provided on the outer side of the first screening cylinder (54), a second spiral plate (59) being fixedly provided on the inner side of the second screening cylinder (58), a third screening cylinder (60) being fixedly provided on the outer side of the second screening cylinder (58), a third spiral plate (61) being fixedly provided inside the third screening cylinder (60), an outer cylinder (62) being rotatably provided on the outer side of the third screening cylinder (60), the outer cylinder (62) A discharge trough is provided at a position corresponding to the upper portion of the bottom plate. The outer cylinder (62) is fixedly provided on the upper portion of the bottom plate. A gear ring (56) is fixedly provided on one end of the first screening cylinder (54). A gear is meshed on the gear ring (56). The gear is fixedly provided on the output end of a fifth motor (57). The fifth motor (57) is fixedly provided on one side of the outer box (12). The diameter of the sieve hole on the first screening cylinder (54) is greater than the diameter of the sieve hole on the second screening cylinder (58). The diameter of the sieve hole on the second screening cylinder (58) is greater than the diameter of the sieve hole on the third spiral plate (61). The length of the first screening cylinder (54) is greater than the length of the second screening cylinder (58). The length of the second screening cylinder (58) is greater than the length of the third spiral plate (61).

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