Plastic material sorting device

Abstract

The utility model relates to the technical field of plastic recovery, in particular to a plastic material sorting device which comprises a rack, a conveying unit, a feeding unit, a plurality of sorting cylinders, an identification unit and an air blowing unit, the conveying unit is arranged on the rack, the conveying unit is provided with a feeding end and a discharging end, the feeding unit can introduce plastic to be subjected to material sorting into the feeding end, and the identification unit is arranged at the discharging end. The conveying unit conveys plastics towards the discharging end and outputs the plastics through the discharging end, the recognition unit is located at the discharging end and can recognize the materials of the plastics output by the discharging end, and the blowing unit is located above the sorting cylinders and blows the plastics of different materials to the different sorting cylinders through recognition information recognized by the recognition unit. Due to the fact that the feeding unit is located above the feeding end, and the materials can fall into the feeding end of the conveying unit through the gravity of the materials, the energy consumption needed by the fact that the plastics are fed into the feeding end can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic recycling, in particular to a sorting device for plastic materials. Background Art

[0002] Making waste plastics into recycled plastic products has become a new industry. In the process of separating waste plastics, since there are many different types of plastics in use and most of them are incompatible, sorting plastics of different materials is a key link in plastic recycling.

[0003] For example, the optoelectronic material sorting machine disclosed in the publication number CN202411010U includes a frame, a conveying component, a jet material distribution unit, a collection device and an optoelectronic detection component. The jet material distribution unit is arranged between the conveying component and the collection device. The optoelectronic detection component detects the spectral data of the material and transmits the detection data to the main control unit. The main control unit drives the jet material distribution unit to eject air with corresponding pressure, so that the material falls into each material distribution box of the collection device, and plastics of different materials can be actively sorted.

[0004] Although the existing sorting machine can realize the sorting of plastics of different materials, the material needs to be vibrated and fed through a vibrating screen during the process of feeding the material into the conveying component, resulting in high energy consumption and noise pollution during the material sorting process. Summary of the Utility Model

[0005] In view of this, it is necessary to provide a sorting device for plastic materials to solve the technical problem of high energy consumption during the material transportation of the existing sorting device for plastic materials.

[0006] To achieve the above technical purpose, the technical solution of the utility model provides a sorting device for plastic materials, including:

[0007] A frame;

[0008] A conveying unit, installed on the frame, provided with a feeding end and a discharging end, and used for conveying plastic debris from the feeding end to the discharging end;

[0009] A feeding unit, located above the feeding end, and used for enabling plastics to fall into the feeding end by their own gravity;

[0010] A plurality of sorting cylinders, arranged at intervals and located below the discharging end;

[0011] An identification unit, located at the discharging end, and used for identifying plastic debris of different materials; and

[0012] A blowing unit, located above each sorting cylinder, and used for blowing plastic debris of different materials into different sorting cylinders respectively.

[0013] In some embodiments, the feeding unit includes a feeding hopper which is fixed to the frame and located above the feeding end, and the feeding hopper extends in the width direction of the conveying unit.

[0014] In some embodiments, a feeding chute with an end opening is provided at the discharge port of the feeding hopper, and the end opening of the feeding chute extends in the direction of the feeding end.

[0015] In some embodiments, a material leveling plate is further provided at the discharge port of the feeding hopper. The material leveling plate is fixed to the side of the feeding hopper close to the end opening of the feeding chute, and a plurality of material leveling teeth are provided at one end of the material leveling plate close to the feeding chute at uniform intervals in the width direction of the feeding chute.

[0016] In some embodiments, the conveying unit includes a conveying table which is fixed to the frame and is inclined downward from the feeding end to the discharging end.

[0017] In some embodiments, the conveying table is provided with a plurality of conveying grooves at uniform intervals in the width direction, and each of the conveying grooves extends from the feeding end to the discharging end.

[0018] In some embodiments, retaining plates are provided on both sides of the conveying table.

[0019] In some embodiments, the sorting device further includes a material passing plate, the two ends of which are fixed to the retaining plates, and a material passing gap is formed between the material passing plate and the tabletop of the conveying table.

[0020] In some embodiments, the identification unit includes two groups of identification modules which are arranged oppositely and are respectively located on both sides of the discharging end. Both groups of identification modules include a plurality of light-sensing identifiers arranged at intervals.

[0021] In some embodiments, the blowing unit includes a plurality of air nozzles, and each of the air nozzles is arranged at intervals between the identification unit and each sorting cylinder.

[0022] Compared with the prior art, the beneficial effects of the plastic material sorting device of the present utility model include: the sorting device is provided with a frame, a conveying unit, a feeding unit, a plurality of sorting cylinders, an identification unit and a blowing unit. The conveying unit is installed on the frame and has a feeding end and a discharging end. The feeding unit can feed the plastics to be sorted by material into the feeding end. The conveying unit conveys the plastics towards the discharging end and outputs them through the discharging end. The identification unit is located at the discharging end and can identify the plastic materials output from the discharging end. The blowing unit is located above each sorting cylinder. According to the identification information identified by the identification unit, plastics of different materials are respectively blown into different sorting cylinders, thereby realizing the sorting of plastics of different materials. Since the feeding unit is located above the feeding end and the materials can fall into the feeding end of the conveying unit by their own gravity, the energy consumption required for feeding the plastics into the feeding end can be effectively reduced, and the noise during plastic conveying can be effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 FIG. is a schematic structural diagram of the plastic material sorting device provided by an embodiment of the present utility model;

[0024] Figure 2 FIG. is a schematic structural diagram of the plastic material sorting device provided by an embodiment of the present utility model with the frame hidden;

[0025] Figure 3 FIG. is a schematic structural diagram of the feeding unit of the plastic material sorting device provided by an embodiment of the present utility model.

[0026] Among them, each reference numeral in the figure:

[0027] 10 - frame 20 - conveying unit 21 - feeding end

[0028] 22 - discharging end 23 - conveying table 30 - feeding unit

[0029] 31 - feeding hopper 32 - feeding chute 33 - material leveling plate

[0030] 40 - sorting cylinder 50 - identification unit 51 - identification module

[0031] 60 - blowing unit 61 - air nozzle 70 - material passing plate

[0032] 71 - material passing gap 231 - material blocking plate 331 - material leveling teeth

[0033] 511 - light sensor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The following will specifically describe the preferred embodiments of the present utility model in conjunction with the accompanying drawings. Among them, the accompanying drawings form a part of this application and are used together with the embodiments of the present utility model to explain the principle of the present utility model, and are not used to limit the scope of the present utility model.

[0035] An embodiment of the present utility model provides a sorting device for plastic materials, as Figure 1-2 shown, which includes a frame 10, a conveying unit 20, a feeding unit 30, a plurality of sorting cylinders 40, an identification unit 50, and a blowing unit 60. The conveying unit 20 is installed on the frame 10. The conveying unit 20 is provided with a feeding end 21 and a discharging end 22, and is used for conveying plastic debris from the feeding end 21 towards the discharging end 22; the feeding unit 30 is located above the feeding end 21 and is used for enabling the plastic to fall into the feeding end 21 by its own gravity; the sorting cylinders 40 are arranged at intervals and are located below the discharging end 22; the identification unit 50 is located at the discharging end 22 and is used for identifying plastic debris of different materials; the blowing unit 60 is located above each sorting cylinder 40 and is used for blowing plastic debris of different materials into different sorting cylinders 40 respectively according to the identification signal of the identification unit 50.

[0036] Specifically, the sorting device is provided with a frame 10, a conveying unit 20, a feeding unit 30, a plurality of sorting cylinders 40, an identification unit 50, and a blowing unit 60. The conveying unit 20 is installed on the frame 10. The conveying unit 20 is provided with a feeding end 21 and a discharging end 22. The feeding unit 30 can feed the plastic to be sorted by material into the feeding end 21. The conveying unit 20 conveys the plastic towards the discharging end 22 and outputs it through the discharging end 22. The identification unit 50 is located at the discharging end 22 and can identify the plastic material output from the discharging end 22. The blowing unit 60 is located above each sorting cylinder 40. According to the identification information identified by the identification unit 50, it blows plastic of different materials into different sorting cylinders 40 respectively, thereby realizing the sorting of plastics of different materials. Since the feeding unit 30 is located above the feeding end 21 and the material can fall into the feeding end 21 of the conveying unit 20 by its own gravity, the energy consumption required for feeding the plastic into the feeding end 21 can be effectively reduced, and the noise during plastic conveying can be effectively reduced.

[0037] In this embodiment, the sorting device for plastic materials mainly sorts the crushed plastic debris of different materials. The plastic materials include materials such as PET (polyethylene terephthalate), HDPE (high-density polyethylene), PVC (polyvinyl chloride), LDPE (low-density polyethylene), PE (polyethylene), and PP (polypropylene). When it is applied to the sorting of other materials, its sorting principle should be the same as that for sorting the plastic debris materials.

[0038] It can be understood that the frame 10 can be any frame structure that can be supported on the ground.

[0039] It can be understood that the conveying unit 20 can be any conveying device such as a conveyor belt or a screw conveyor that can convey plastic particles.

[0040] In one of the embodiments, as Figure 1-2As shown, the conveying unit 20 includes a conveying table 23. The conveying table 23 is fixed to the frame 10 and is inclined downward from the feeding end 21 towards the discharging end 22. Specifically, the conveying table 23 is inclined downward from the feeding end 21 towards the discharging end 22, which enables the plastic debris entering the feeding end 21 to be conveyed towards the discharging end 22 by its own gravity, thereby reducing the energy consumption required for conveying the plastic debris.

[0041] In one embodiment, the conveying table 23 is provided with a number of conveying grooves evenly spaced along the width direction, and each conveying groove extends from the feeding end 21 to the discharging end 22. Specifically, the conveying grooves can evenly disperse the plastic debris conveyed by the conveying table 23, thereby ensuring the sorting quality of the plastic debris.

[0042] In one embodiment, as Figure 1 shown, retaining plates 231 are provided on both sides of the conveying table 23. Specifically, the retaining plates 231 can limit the plastic debris conveyed by the conveying table 23 to prevent the plastic debris from falling out from the side of the conveying table 23.

[0043] In one embodiment, as Figure 1-2 shown, the sorting device further includes a material passing plate 70. The two ends of the material passing plate 70 are fixed to the retaining plates 231, and a material passing gap 71 is formed between the material passing plate 70 and the tabletop of the conveying table 23. Specifically, when the plastic debris enters the material passing plate 70, it can only pass out through the material passing gap 71, thereby equalizing the material conveyed by the conveying table 23 and ensuring the sorting quality of the plastic debris.

[0044] In one embodiment, the material passing plate 70 is located at the feeding end 21.

[0045] It can be understood that the feeding unit 30 can be any feeding device such as a feeding belt, a screw conveyor, etc. located above the feeding end 21.

[0046] In one embodiment, as Figure 1-3 shown, the feeding unit 30 includes a feeding hopper 31. The feeding hopper 31 is fixed to the frame 10 and is located above the feeding end 21, and the feeding hopper 31 extends in the width direction of the conveying unit 20. Specifically, when sorting plastic debris of different materials, the plastic debris to be sorted is poured into the feeding hopper 31, and the plastic debris falls onto the feeding end 21 of the conveying table 23 by its own gravity, thereby realizing the feeding of the plastic debris and reducing the energy consumption during the conveying of the plastic debris. By extending in the width direction of the conveying unit 20, the feeding hopper 31 can evenly distribute the plastic debris along the width direction of the conveying unit 20.

[0047] In one embodiment, as Figure 1-3As shown, a feeding chute 32 with an end opening is provided at the discharge port of the feeding hopper 31, and the end opening of the feeding chute 32 extends in the direction of the feeding end 21. Specifically, the plastic debris output from the discharge port of the feeding hopper 31 will fall into the feeding chute 32, and the plastic debris will enter the feeding end 21 under the conveyance of the feeding chute 32. The feeding chute 32 can provide buffering for the plastic debris to enter the feeding end 21 and promote the even distribution of the plastic debris.

[0048] In some embodiments, as Figure 3 shown, a material distributing plate 33 is further provided at the discharge port of the feeding hopper 31. The material distributing plate 33 is fixed to one side of the feeding hopper 31 close to the end opening of the feeding chute 32, and a plurality of material distributing teeth 331 are provided at one end of the material distributing plate 33 close to the feeding chute 32 at uniform intervals along the width direction of the feeding chute 32. Specifically, when the plastic debris enters the feeding chute 32, the material distributing teeth 331 on the material distributing plate 33 can be used for material distribution.

[0049] It can be understood that the number of sorting cylinders 40 can be adaptively set according to the number of types of materials of the plastic debris to be sorted.

[0050] It can be understood that the recognition unit 50 can be any recognition device capable of recognizing materials such as PET (polyethylene terephthalate), HDPE (high-density polyethylene), PVC (polyvinyl chloride), LDPE (low-density polyethylene), PE (polyethylene), and PP (polypropylene).

[0051] In some embodiments, as Figure 1-2 shown, the recognition unit 50 includes two groups of recognition modules 51. The two groups of recognition modules 51 are arranged oppositely and are respectively located on both sides of the discharge end 22. Each group of recognition modules 51 includes a plurality of light-sensitive recognizers 511 arranged at intervals. Specifically, the two groups of recognition modules 51 achieve precise recognition of the passing plastic debris through each light-sensitive recognizer 511, so as to ensure the recognition accuracy of the material of the plastic debris.

[0052] It can be understood that the blowing unit 60 can be any blowing device such as an air pump or a blower that can blow air on the plastic debris.

[0053] In some embodiments, as Figure 2 shown, the blowing unit 60 includes a plurality of air nozzles 61. The air nozzles 61 are arranged at intervals between the recognition unit 50 and each sorting cylinder 40. Specifically, after each light-sensitive recognizer 511 recognizes the material of the plastic debris at the corresponding position, it transmits the recognition signal of the material to the controller. The controller adjusts the air pressure of the air nozzle 61 directly below the light-sensitive recognizer 511 through the recognition signal, and blows the plastic debris into the corresponding sorting cylinder 40, thereby realizing the sorting of the plastic debris.

[0054] The specific working principle of the plastic material sorting device provided by the present utility model is as follows: When sorting plastic debris of different materials, the plastic debris to be sorted is poured into the feeding hopper 31, and the plastic debris falls onto the feeding trough 32 by its own gravity. Under the leveling of the leveling teeth 331, it slides along the feeding trough 32 by its own gravity, then enters the feeding end 21 of the conveying table 23, and then slides along the conveying table 23 by gravity and uniformly exits from the discharging end 22 of the conveying table 23. After the plastic debris exits, each light sensor 511 identifies the material of the passing plastic debris, and the blowing unit 60 adjusts the air pressure according to the identification signal to blow the plastic debris into the corresponding sorting cylinder 40, finally realizing the sorting of the plastic debris.

[0055] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A plastic material sorting device, characterized in that, Comprising: A frame; A conveying unit, installed on the frame, having a feeding end and a discharging end, and configured to convey plastic scraps from the feeding end towards the discharging end; A feeding unit, located above the feeding end, and configured to allow plastic to fall into the feeding end by its own gravity; A plurality of sorting cylinders, arranged at intervals and located below the discharging end; An identification unit, located at the discharging end, and configured to identify plastic scraps of different materials; And A blowing unit, located above each of the sorting cylinders, and configured to blow plastic scraps of different materials into different ones of the sorting cylinders respectively.

2. The plastic material sorting device according to claim 1, characterized in that, The feeding unit includes a feeding hopper, which is fixed to the frame and located above the feeding end, and the feeding hopper extends in the width direction of the conveying unit.

3. The plastic material sorting device according to claim 2, characterized in that, The discharging opening of the feeding hopper is provided with a feeding trough with an end opening, and the end opening of the feeding trough extends in the direction towards the feeding end.

4. The plastic material sorting device according to claim 3, characterized in that The discharging opening of the feeding hopper is further provided with a material leveling plate, which is fixed to the feeding hopper on the side of the end opening close to the feeding trough, and a plurality of material leveling teeth are evenly spaced along the width direction of the feeding trough at one end of the material leveling plate close to the feeding trough.

5. The plastic material sorting device according to any one of claims 1-4, characterized in that, The conveying unit includes a conveying table, which is fixed to the frame and is inclined downward from the feeding end towards the discharging end.

6. The plastic material sorting device according to claim 5, characterized in that, The conveying table is provided with a plurality of conveying troughs evenly spaced in the width direction, and each of the conveying troughs extends from the feeding end to the discharging end.

7. The plastic material sorting device according to claim 5, characterized in that, Fence plates are arranged on both sides of the conveying table.

8. The plastic material sorting device according to claim 7, characterized in that The sorting device further includes a material passing plate, the two ends of which are fixed to the fence plates, and a material passing gap is formed between the material passing plate and the tabletop of the conveying table.

9. The plastic material sorting device according to any one of claims 1-4, characterized in that, The identification unit includes two groups of identification modules, the two groups of identification modules are arranged oppositely and are respectively located on both sides of the discharging end, and both groups of identification modules include a plurality of light sensor identifiers arranged at intervals.

10. The plastic material sorting device according to any one of claims 1-4, characterized in that The blowing unit includes a plurality of air nozzles, and each of the air nozzles is arranged at intervals between the identification unit and each of the sorting cylinders.

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