Container sorting line and sorting method thereof

Abstract

The present application relates to a container sorting line and a sorting method thereof, comprising: a feeding device for feeding; a first sorting device for screening out labeled plastic containers from recyclables and outputting them; a second sorting device for receiving the recyclables remaining after screening out by the first sorting device, sorting out the unlabeled plastic containers of the recyclables and outputting them; a third sorting device for sorting out the labeled plastic containers in the first collecting device and outputting them; a first collecting device for receiving and weighing the labeled plastic containers output by the first sorting device; a second collecting device for receiving and weighing the unlabeled plastic containers output by the second sorting device; and a third collecting device for receiving the labeled plastic containers output by the third sorting device. Since the weight is recorded throughout the whole process, different batches can be sorted continuously, and then the recyclables of different batches are distinguished by weight, so that the recyclables of each batch are not easily confused, and the sorting efficiency is high.

Description

Technical Field

[0001] The present application relates to the technical field of material sorting technology, and in particular to a container sorting line and a sorting method thereof. Background Art

[0002] When recycling plastic containers in a waste recycling station, the recycled plastic containers need to be sorted. First, the recycled plastic containers are divided into two categories: labeled and unlabeled. Then both types of recycled plastic containers are classified. After classification, the unlabeled recycled plastic containers can be weighed and sent to the baler for packing. After weighing, the labeled recycled plastic containers need to be sent to the label remover to remove the labels and then sent to the baler for packing.

[0003] However, with the development of society, the amount of recycled plastic containers that need to be recycled has gradually increased. Relying solely on manual sorting not only requires separate sorting between each batch, which is inefficient, but also easily leads to confusion between different batches of recycled plastic containers, resulting in weighing errors. Summary of the invention

[0004] In order to solve the problem that the recycling efficiency of plastic containers by manual sorting and weighing in traditional recycling stations is low and confusion between batches is easy to occur, the present application provides a container sorting line and a sorting method thereof.

[0005] In the first aspect, the present application provides a container sorting line adopting the following technical solution:

[0006] A container sorting line, comprising:

[0007] A feeding device for feeding materials;

[0008] A first sorting device is used to screen out the labeled recycled plastic containers from the large batch of recycled plastic containers and output the two separately;

[0009] A first collecting device, used for receiving and weighing the labeled recycled plastic containers sorted and output by the first sorting device;

[0010] The second sorting device is used to receive the recyclables remaining after the first sorting device screens out the recyclable plastic containers with labels, sort the recyclable plastic containers without labels and then output them;

[0011] A second collecting device, used for receiving and weighing the unlabeled recycled plastic containers sorted and output by the second sorting device;

[0012] A third sorting device, used for sorting and outputting the labeled recycled plastic containers from the first collecting device;

[0013] The third collecting device is used to receive the labeled recycled plastic containers sorted by the third sorting device.

[0014] Through the above technical scheme, the recycled plastic containers with or without labels are sorted by the first sorting device, and then the unlabeled recycled plastic containers are sorted by the second sorting device, and the labeled recycled plastic containers are sorted by the third sorting device. After being collected and weighed by the first collecting device and the second collecting device, the unlabeled recycled plastic containers are transported to the baler for packing, and the labeled recycled plastic containers are transported to the label remover for label removal and then transported to the baler for packing. Since the weight is recorded throughout the whole process, even if different batches are sorted continuously, the recycled plastic containers of different batches can be distinguished by weight, so that the recycled plastic containers of each batch are not easily confused and the sorting efficiency is high.

[0015] Optionally, the first sorting device includes:

[0016] the first intelligent sorting machine to separate labeled recycled plastic containers from bulk recyclables;

[0017] The first output conveyor belt is provided with two belts, which are used to transport the labeled recycled plastic containers and the remaining recyclables respectively;

[0018] The second sorting device includes a sorting conveyor belt for receiving the mixed plastic containers output by the first output conveyor belt, a plurality of feeding channels and a plurality of recycling boxes. The sorting conveyor belt is provided with a plurality of workstations for manually sorting the mixed plastic containers, wherein a part of the feeding channels is used for delivering the sorted labeled plastic containers to the first collecting device, and the remaining feeding channels are used for delivering the sorted non-recyclable materials to the recycling boxes for collection.

[0019] Optionally, the third sorting device includes:

[0020] A feeding conveyor belt, used to receive and output the articles output by the first collecting device;

[0021] The second intelligent sorting machine is used to receive the items output by the feed conveyor belt and sort the labeled recycled plastic containers into small categories;

[0022] The second output conveyor belt is provided with two belts, which are used to output the screened recycled plastic containers and the remaining recycled plastic containers respectively;

[0023] The recycling mechanism is connected to the second output conveyor belt for outputting the remaining recycled plastic containers, and is used to store and weigh the remaining recycled plastic containers output by the second output conveyor belt, and re-convey the remaining recycled plastic containers to the feed conveyor belt after the weight reaches the standard.

[0024] Optionally, the recycling mechanism includes:

[0025] A buffer bin is provided, which is used to store the remaining recycled plastic containers outputted by the second conveyor belt in batches;

[0026] A weighing component, used for weighing the cache bin;

[0027] The first recycling conveyor belt is used to receive the remaining recycled plastic containers output by the second output conveyor belt and transport them to various buffer warehouses for temporary storage;

[0028] A plurality of discharge hoppers are provided, corresponding one to one with the buffer bins, and arranged on one side of the first recycling conveyor belt, and used for delivering the materials on the first recycling conveyor belt into the buffer bin;

[0029] The interception component is arranged on the first recovery conveyor belt, and is provided with a plurality of interception components corresponding to the discharge hoppers one by one, and is used to block the material on the first recovery conveyor belt so that it is discharged along the discharge channel, and is opened accordingly according to the sorting round of the second intelligent sorting machine.

[0030] Optionally, the cache bin, the collection bin and the top of the bin are all provided with a pushing mechanism. Taking the cache bin as an example, the pushing mechanism includes a pushing rack, a pushing cylinder, a first pushing plate, a second pushing plate and a support plate. The pushing rack is arranged on the top of the cache bin, the first pushing plate is slidably installed on the pushing rack, and the second pushing plate is rotatably arranged on the first pushing plate. The pushing cylinder is used to push the first pushing plate to slide, and the pushing rack extends into the cache bin. In an initial state, the first pushing plate and the second pushing plate are both located outside the cache bin. When the first pushing plate and the second pushing plate slide toward the cache bin, the support plate is used to support and stop the second pushing plate from rotating, and the second pushing plate is used to push the material in the cache bin to the other side. When the first pushing plate and the second pushing plate slide toward the outside of the cache bin, the second pushing plate rotates under the push of the material, and the support of the support plate to the second pushing plate fails.

[0031] Optionally, the second collecting device includes:

[0032] There are several classification bins, each for collecting unlabeled recycled plastic containers of different categories;

[0033] The delivery mechanism is provided with a number of materials corresponding to the classification bins, and is used to deliver the materials manually sorted on the sorting conveyor belt to the corresponding classification bins.

[0034] Optionally, the delivery mechanism includes:

[0035] A bracket, used as a mounting base;

[0036] The feeding hopper is used to receive and output the materials after manual sorting;

[0037] A collecting hopper, used to receive the output materials from the feeding hopper;

[0038] A weighing assembly, used for weighing the weight of the collecting bucket;

[0039] The collecting bucket is installed on the bracket for lifting. The bracket is provided with a driving mechanism for driving the collecting bucket to rise to the upper opening of the classification bin and then pouring materials into the bin. The driving mechanism is also used to reset the collecting bucket.

[0040] Optionally, the driving mechanism includes a driving chain rotatably mounted on the bracket, a driving motor provided on the bracket and a slide rail provided on the bracket, the driving chain is vertical, the slide rail is vertical and the upper end of the slide rail is bent and extends to the upper opening of the classification bin, the driving motor is transmission-connected to the driving chain, the upper side of the collecting bucket is rotatably and slidingly mounted on the slide rail, and the lower side of the collecting bucket is rotatably mounted on the chain; the bracket is provided with a lubrication device for rust-proof lubrication of the driving chain and the driving sprocket.

[0041] Optionally, the bottom walls of the cache bin, collection bin, material bin and classification bin are all provided with discharge ports for material discharge. Taking the classification bin as an example, the classification bin is slidably installed with a plurality of baffles, which are assembled together to close the discharge port. The classification bin is provided with a plurality of driving cylinders for driving the baffles to slide respectively.

[0042] In a second aspect, the present application provides a sorting method for a container sorting line, comprising the following steps:

[0043] S1. Separate labeled plastic containers from overall recycling;

[0044] S2, classifying the labeled plastic containers according to the categories of the plastic containers;

[0045] S3, manually picking out the unlabeled waste containers and unscreened labeled waste containers from the remaining recyclables in S1, and then storing the unlabeled waste containers according to the categories of plastic containers, and putting the labeled waste containers back into S2 for classification;

[0046] Any category of unlabeled waste containers screened out in S4 and S3 will be transported to the baler for packaging after reaching the weight standard;

[0047] The labeled waste containers classified in S5 and S2 are transported to the label removing machine for label removal once the weight of any category reaches the standard, and then transported to the baling machine for packaging.

[0048] This sorting method is applicable to the above-mentioned sorting line.

[0049] To summarize, the present application uses a first sorting device to sort the recycled plastic containers with or without labels into large categories, and then uses a second sorting device to sort the unlabeled recycled plastic containers into small categories, and uses a third sorting device to sort the labeled recycled plastic containers into small categories, and then after collection and weighing by a first collecting device and a second collecting device, the unlabeled recycled plastic containers are transported to a baler for packing, and the labeled recycled plastic containers are transported to a label removing machine for label removal and then transported to a baler for packing. Since the weight is recorded throughout the entire process, even if different batches are sorted continuously, different batches of recycled plastic containers can be distinguished by weight, so that confusion between batches of recycled plastic containers is not easy and the sorting efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a three-dimensional structural schematic diagram of this application.

[0051] Figure 2 It is a top view of the present application.

[0052] Figure 3 It is a bottom view of this application.

[0053] Figure 4 It is a three-dimensional structural schematic diagram of the present application, in which the frame at the sorting conveyor belt is removed.

[0054] Figure 5 yes Figure 4 Enlarged schematic diagram of part A in the middle.

[0055] Figure 6 yes Figure 4 Enlarged schematic diagram of part B in the middle.

[0056] Figure 7 yes Figure 1 Enlarged schematic diagram of part C in the middle.

[0057] Figure 8 It is a three-dimensional structural schematic diagram of the first intelligent sorting machine and the second intelligent sorting machine of the present application.

[0058] Fig. 9 It is a three-dimensional structural schematic diagram of the collection bin, buffer bin, material bin and classification bin of the present application.

[0059] Fig.10 It is a three-dimensional structural schematic diagram of the baffle and the driving cylinder of the present application.

[0060] Fig.11 It is a schematic diagram of the three-dimensional structure of the baffle and the driving cylinder of the present application at an elevation angle.

[0061] Fig.12 yes Figure 1 Enlarged schematic diagram of part D in the middle.

[0062] Fig.13 It is a three-dimensional structural schematic diagram of the interception component of the present application.

[0063] Fig.14 It is a schematic diagram of the three-dimensional structure of the interception component of the present application in another direction.

[0064] Fig.15 It is a three-dimensional structural schematic diagram of the material pushing mechanism of the present application.

[0065] Fig.16 It is a schematic diagram of the three-dimensional structure of the material pushing mechanism of the present application when viewed from above.

[0066] Fig.17 It is a schematic diagram of the three-dimensional structure of the feeding hopper of the present application.

[0067] Fig.18 It is a schematic diagram of the three-dimensional structure of the feeding hopper of the present application in another direction.

[0068] Fig.19 It is a schematic diagram of the explosion of the feeding hopper of the present application.

[0069] Fig. 20 It is a three-dimensional structural diagram of the delivery mechanism of this application.

[0070] Fig.21 It is a three-dimensional structural schematic diagram of the delivery mechanism of the present application, in which some brackets are removed.

[0071] Fig. 22 yes Fig.21 An enlarged schematic diagram of point F.

[0072] Fig.23 It is a cross-sectional view of the lubrication device of the present application.

[0073] Fig.24 It is a cross-sectional view of the lubricating oil tank of the lubricating device of the present application.

[0074] Those skilled in the art will appreciate that the elements in the drawings are shown for simplicity and clarity and are not necessarily drawn to scale. For example, the size and position of some elements in the drawings may be exaggerated relative to other elements to help improve understanding of the embodiments of the present invention.

[0075] Figure numerals: 1, rack; 11, first transport conveyor belt; 12, second transport conveyor belt; 13, label remover; 14, baler; 15, loading device; 151, loading conveyor belt; 2, first sorting device; 21, first intelligent sorting machine; 22, first output conveyor belt; 3, second sorting device; 31, sorting conveyor belt; 32, feeding channel; 33, recycling box; 4, third sorting device; 41, feeding conveyor belt; 42, second intelligent sorting machine; 43, second output conveyor belt; 5, first collecting device; 51, weighing sensor; 52, collection bin; 521, upper opening; 522, discharge port; 53, collection conveyor belt; 54, transport pipe; 541, feed hopper; 55, fan; 56, baffle; 57, drive cylinder; 6, second collection device; 61, classification bin; 62, delivery mechanism; 621, bracket; 622, feed hopper; 6221, sealing plate; 6222, sealing cylinder; 6223, push rod; 63, weighing assembly; 631, gravity sensor; 64, drive mechanism; 641, slide rail; 642, drive chain; 643, drive Drive sprocket; 644, drive motor; 65, collection bucket; 651, support shaft; 652, retaining ring; 66, lifting frame; 661, first mounting shaft; 662, second mounting shaft; 663, first long hole; 664, second long hole; 7, third collecting device; 71, silo; 72, second recycling conveyor belt; 8, recycling mechanism; 81, cache bin; 811, No. 1; 812, No. 2; 813, No. 3; 82, first recycling conveyor belt; 821, discharge hopper; 83, interception assembly; 831, interception plate; 832, interception Cylinder; 9, pushing mechanism; 91, pushing rack; 92, pushing cylinder; 93, first pushing plate; 94, second pushing plate; 95, supporting plate; 10, lubricating device; 101, lubricating oil tank; 1011, pressing plate; 1012, detecting rod; 1013, position sensor; 1014, refueling valve; 102, oil dripping pipe; 103, worm; 104, worm wheel; 105, screw; 106, pushing block; 107, sealing block; 1071, first inclined surface; 108, pressing block; 1081, second inclined surface; 109, spring. DETAILED DESCRIPTION

[0076] The following is combined with Figure 1 —24 provides further details of this application.

[0077] In the first aspect, the present application embodiment discloses a container sorting line, referring to Figure 1 , Figure 2 and Figure 3 , including a frame 1, a loading device 15, a first sorting device 2, a second sorting device 3, a third sorting device 4, a first collecting device 5, a second collecting device 6, a third collecting device 7, a first transport conveyor belt 11 and a second transport conveyor belt 12.

[0078] Reference Figure 1 , Figure 2 and Figure 8 The frame 1 is fixedly installed on the site, and the feeding device 15 includes an inclined feeding conveyor belt 151, which is fixedly installed at the feeding end of the frame 1. The waste and recycled materials enter from the lower end of the feeding conveyor belt 151 and are then output from the higher end of the feeding conveyor belt 151. The feeding conveyor belt 151 adopts a plate chain climbing machine to facilitate the transportation of recycled plastic containers.

[0079] Reference Figure 1 , Figure 2 , Figure 7 and Figure 8 The first sorting device 2 includes a first intelligent sorting machine 21 and two first output conveyor belts 22. The first intelligent sorting machine 21 is fixedly installed on the frame 1 and has two output ports. The feed end of the first intelligent sorting machine 21 is connected to the discharge end of the loading conveyor belt 151. The two first output conveyor belts 22 are fixedly installed on the frame 1, and the feed ends of the two first output conveyor belts 22 are respectively connected to the two output ports of the first intelligent sorting machine 21.

[0080] The first intelligent sorting machine 21 is used to screen out the recycled plastic containers with labels in the material, and then output the recycled plastic containers with labels and the remaining materials through its two output ports.

[0081] Reference Figure 1 , Figure 5 and Fig. 9 The first collecting device 5 includes a collecting bin 52 suspended on the frame 1 through a weighing sensor 51, a collecting conveyor belt 53 fixedly installed on the frame 1, and a transport pipe 54 fixedly installed on the frame 1. One end of the collecting conveyor belt 53 is connected to the discharge end of the first output conveyor belt 22 for outputting labeled recycled plastic containers. The labeled recycled plastic containers fall from the first output conveyor belt 22 onto the collecting conveyor belt 53 and are transported to the transport pipe 54.

[0082] Reference Figure 1 , Figure 5 and Fig. 9 The collecting bin 52 has an upper opening 521, and the materials enter from the upper opening 521 of the collecting bin 52. One end of the transport pipe 54 is fixedly connected to the fan 55, and the fan 55 blows air to the transport pipe 54. A feed hopper 541 is fixedly installed on the upper side wall of one end of the transport pipe 54 close to the fan 55. The feed hopper 541 is connected to the transport pipe 54. The feed hopper 541 is located directly below the output end of the collecting conveyor belt 53. The materials on the collecting conveyor belt 53 fall from its output end into the feed hopper 541, and then fall into the transport pipe 54 along the feed hopper 541.

[0083] Reference Figure 1 and Figure 5 One end of the transport pipe 54 away from the fan 55 extends to the upper opening 521 of the collecting bin 52, and the empty recycled plastic containers in the transport pipe 54 are blown by the fan 55 along the transport pipe 54 to one end of the transport pipe 54 located at the upper opening 521 of the collecting bin 52, and then blown out of the transport pipe 54 and fall into the collecting bin 52.

[0084] Reference Figure 1 , Figure 2 and Figure 3 The third sorting device 4 includes a feed conveyor belt 41, a second intelligent sorting machine 42, two second output conveyor belts 43 and a recycling mechanism 8. The second intelligent sorting machine 42 and the first intelligent sorting machine 21 both use the same optical sorting machine.

[0085] Reference Fig. 9 , Fig.10 and Fig.11 The bottom wall of the collecting bin 52 is designed with a discharge port 522, and the collecting bin 52 is slidably installed with multiple baffles 56, which are assembled together to close the discharge port 522 of the collecting bin 52, and each baffle 56 is provided with a driving cylinder 57, which is fixedly installed on the bottom wall of the collecting bin 52, and is used to drive the baffle 56 to slide to open the discharge port 522 or close the discharge port 522.

[0086] Reference Figure 4 , Figure 6 and Fig. 9 The feeding conveyor belt 41 is fixed to the frame 1 and is located directly below the discharge port 522 of the collecting bin 52 . After the discharge port 522 of the collecting bin 52 is opened, the recycled plastic containers in the collecting bin 52 pass through the discharge port 522 and fall onto the feeding conveyor belt 41 .

[0087] When dumping the recycled plastic containers, the weight of the collecting bin 52 is firstly weighed by the weighing sensor 51. When the weight reaches the standard, the recycled plastic containers are first dumped by only opening a baffle 56 by driving the air cylinder 57 to avoid the recycled plastic containers being dumped too quickly after the discharge port 522 is fully opened, causing the recycled plastic containers to pile up on the feeding conveyor belt 41 and interfere with the transportation of the feeding conveyor belt 41.

[0088] As the dumping progresses, the weight of the collection bin 52 decreases, and the baffles 56 are opened one by one until the discharge port 522 is fully opened, thereby ensuring the speed of material dumping. At the same time, when the weighing sensor 51 detects that the weight of the collection bin 52 does not change within a specified time after the file is opened, it is determined that there is a recycled plastic container blocking the discharge port 522, so the second baffle 56 is opened to allow the stuck material to slide down smoothly. When the weight in the collection bin 52 returns to zero, the baffles 56 are closed again. In this embodiment, a two-baffle 56 design is adopted.

[0089] Reference Figure 2 , Figure 3 , Figure 7 and Figure 8 The discharge end of the feed conveyor belt 41 extends to the feed end of the second intelligent sorting machine 42, and is used to feed the recycled plastic containers into the second intelligent sorting machine 42 for sorting. The second intelligent sorting machine 42 also has two discharge ports, and the two second output conveyor belts 43 correspond to the two discharge ports respectively, and the second output conveyor belts 43 are fixedly installed on the frame 1. After the second intelligent sorting machine 42 screens out the set categories from the labeled recycled plastic containers, the screened categories and the remaining recycled plastic containers are output through the two second output conveyor belts 43 respectively.

[0090] Reference Figure 1 , Figure 2 and Figure 8 The feeding end of the second intelligent sorting machine 42 is a conveyor belt, so the feeding conveyor belt 41 is divided into two parts, one part is horizontal and is composed of a traditional belt conveyor belt for receiving materials, and the other part is inclined and is composed of a plate chain climber, which is used to transport the recycled plastic containers normally to the feeding end of the second intelligent sorting machine 42, so that the recycled plastic containers are not easy to roll down during inclined transportation.

[0091] Reference Figure 1 , Figure 3 and Figure 6 The recovery mechanism 8 includes a plurality of buffer bins 81 and a first recovery conveyor belt 82. The buffer bins 81 are suspended on the frame 1 through a weighing sensor 51. The buffer bins 81 and the collection bins 52 are of the same design and are provided with the same baffles 56 and driving cylinders 57.

[0092] Reference Figure 1 , Figure 2 and Fig.12 The feed end of the first recycling conveyor belt 82 is connected to the output end of the second output conveyor belt 43 for outputting the remaining recycled plastic containers. The discharge end of the first recycling conveyor belt 82 is horizontal and located on the upper side of the buffer bin 81. The discharge end of the first recycling conveyor belt 82 is provided with a plurality of interception components 83 corresponding to the buffer bin 81 one by one.

[0093] Reference Fig.12 , Fig.13 and Fig.14 The interception assembly 83 includes an interception plate 831 that is installed on the first recycling conveyor belt 82 and an interception cylinder 832 for pushing the interception plate 831 up and down. The interception plate 831 is vertical, and the interception cylinder 832 is fixedly installed on the first recycling conveyor belt 82. A plurality of discharge hoppers 821 are fixedly installed on one side of the first recycling conveyor belt 82, and the discharge hoppers 821 correspond to the buffer bins 81 one by one.

[0094] Reference Figure 1 , Figure 2 and Figure 3 The number of buffer bins 81 is related to the number of categories that need to be separated in the recycled plastic containers. According to the categories of recycled plastic containers in conventional recycling stations, three buffer bins 81 are used in this embodiment.

[0095] Reference Figure 1 , Figure 3 and Fig.12 The three buffer bins 81 are all located on the same side of the first recycling conveyor belt 82, the discharge hopper 821 is inclined, and the lower end of the discharge hopper 821 extends to the upper opening 521 of the buffer bin 81. The three buffer bins 81 and the collection bin 52 are arranged in intervals along the same straight line, and the discharge ports 522 of the three buffer bins 81 are all directly opposite to the feed conveyor belt 41. The angle between the interception plate 831 and the first recycling conveyor belt 82 is an acute angle. The interception plate 831 is used to intercept the material on the first recycling conveyor belt 82, so that the material enters the discharge hopper 821 along the interception plate 831, and then enters the buffer bin 81 along the discharge hopper 821.

[0096] Reference Figure 1 , Figure 2 , Figure 3 and Fig.12 , the three buffer bins 81 are named No. 1 811, No. 2 812 and No. 3 813 in the direction away from the collection bin 52, and the mixed recycled plastic containers recycled after the first sorting by the second intelligent sorting machine 42 are transported to No. 1 811 by the first recycling conveyor belt 82. During the transportation process, the other two interception plates 831 are raised to allow the materials on the first recycling conveyor belt 82 to pass smoothly, and the interception plate 831 corresponding to No. 1 811 is lowered to intercept the materials on the first recycling conveyor belt 82. Under the guidance of the interception plate 831, the materials on the first recycling conveyor belt 82 enter the No. 1 811 along the discharge hopper 821 for temporary storage.

[0097] When No. 1 811 is full, the baffle 56 of No. 1 811 is opened in the same way as the collection bin 52 until the baffle 56 is closed after the weight in No. 1 811 returns to zero, and the mixed recycled plastic containers in No. 1 811 are transported to the second intelligent sorting machine 42 for sorting by the feeding conveyor 41. After the second intelligent sorting machine 42 screens out the set categories, it outputs the screened recycled plastic containers and the remaining mixed recycled plastic containers through the two second output conveyor belts 43 respectively.

[0098] At the same time, the remaining mixed plastic containers will be transported to No. 2 812 along the first recycling conveyor belt 82. At this time, the interception plate 831 corresponding to No. 2 812 will be lowered to intercept the materials on the first recycling conveyor belt 82. At this time, the mixed recycled plastic containers will enter No. 2 812 along the discharge hopper 821 for temporary storage.

[0099] After No. 2 812 is full, it is transported to the second intelligent sorting machine 42 in the same way as No. 1 811 is full, and the required categories are screened out for the final sorting. The second intelligent sorting machine 42 outputs the screened recycled plastic containers and the remaining miscellaneous materials separately, and the miscellaneous materials are transported to No. 3 813 by the first recycling conveyor belt 82. At this time, the intercepting plate 831 corresponding to No. 3 813 is lowered, and the miscellaneous materials enter No. 3 813 along the discharge hopper 821 for temporary storage.

[0100] When No. 3 813 is full, the miscellaneous materials are transported to the second intelligent sorting machine 42 in the same way as when No. 1 811 is full, and then directly output without sorting.

[0101] After multiple screenings, mixed recycled plastic containers are divided into several separate categories, which can effectively improve recycling efficiency and reduce recycling costs.

[0102] Reference Figure 1 , Figure 2 and Figure 3 The third collecting device 7 includes a plurality of silos 71 and a second recovery conveyor belt 72. The second recovery conveyor belt 72 is fixed to the frame 1. The structure of the silos 71 is the same as that of the collecting silos 52. The silos 71 are suspended on the frame 1 through the weighing sensor 51. The silos 71 are arranged along the same straight line and are located on one side of the second recovery conveyor belt 72.

[0103] Reference Figure 1 , Figure 2 and Figure 3 The design of the second recovery conveyor belt 72 is the same as that of the first recovery conveyor belt 82, and a discharge hopper 821 and an interception assembly 83 are also provided thereon in the same manner. The discharge hopper 821 corresponds one-to-one to the silo 71, and the interception assembly 83 corresponds one-to-one to the silo 71.

[0104] Reference Figure 1 , Figure 2 and Figure 3The number of silos 71 is twice the number of categories to be separated plus one, and is set to seven in this embodiment. The silos 71 and the collection silo 52 are of the same design and are designed with the same baffle 56 and driving cylinder 57. The feed end of the second recycling conveyor belt 72 is connected to the output end of the second output conveyor belt 43 for outputting the recycled plastic containers screened by the second intelligent sorting machine 42. The recycled plastic containers sorted by the second intelligent sorting machine 42 are transported to the corresponding silos 71 by the second recycling conveyor belt 72, and then blocked by the interception plate 831, so that the recycled plastic containers enter the corresponding silos 71 along the discharge hopper 821 for storage.

[0105] Reference Fig. 9 , Fig.15 and Fig.16 A material pushing mechanism 9 is provided on the top of the material bin 71, the collecting bin 52 and the buffer bin 81. Since the material is easily accumulated on one side when the material bin 71, the collecting bin 52 and the buffer bin 81 receive materials, resulting in a low utilization rate of the internal space of the material bin 71, the collecting bin 52 and the buffer bin 81, the material pushing mechanism 9 regularly pushes the material accumulated on one side in the material bin 71, the collecting bin 52 and the buffer bin 81 toward the other side according to the weight detected by the weighing sensor 51 of the material bin 71, the collecting bin 52 and the buffer bin 81, so that the entire internal space can be utilized, thereby improving the utilization rate of the internal space.

[0106] Reference Fig. 9 , Fig.15 and Fig.16 The pushing mechanism 9 includes a pushing frame 91, a pushing cylinder 92, a first pushing plate 93 and a second pushing plate 94. The pushing frame 91 is fixedly installed on the top feeding side of the material bin 71, the collecting bin 52 or the buffer bin 81. The pushing cylinder 92 is fixedly installed on the pushing frame 91, the first pushing plate 93 is slidably installed on the pushing frame 91, and the second pushing plate 94 is rotatably installed on one side of the first pushing plate 93.

[0107] Reference Fig.15 and Fig.16 The piston rod of the pushing cylinder 92 is fixedly connected to the first pushing plate 93, the first pushing plate 93 is horizontal, and a plurality of supporting plates 95 are fixedly welded to the bottom wall of one side of the first pushing plate 93. Under normal circumstances, the second pushing plate 94 rotates to the bottom of the first pushing plate 93 and is vertical. At this time, one side of the supporting plate 95 is tightly pressed against the second pushing plate 94.

[0108] Reference Fig. 9 , Fig.15 and Fig.16, one end of the pushing rack 91 extends to the inside of the material bin 71 or the collecting bin 52 or the buffer bin 81. When pushing material is needed, the pushing cylinder 92 is started to drive the first pushing plate 93 to slide, and the first pushing plate 93 slides along the pushing rack 91 to the inside of the material bin 71 or the collecting bin 52 or the buffer bin 81. During the sliding process of the first pushing plate 93, the material is pushed from the feeding side of the material bin 71 or the collecting bin 52 or the buffer bin 81 to the other side through the side of the second pushing plate 94 facing away from the support plate 95. When pushing the material, the second pushing plate 94 is supported by the support plate 95 so that the second pushing plate 94 can push the material out. When the pushing is completed and the piston rod of the pushing cylinder 92 is retracted, during the resetting process of the first pushing plate 93 and the second pushing plate 94, the second pushing plate 94 is pushed by the material to rotate upward, so that the first pushing plate 93 and the second pushing plate 94 will not pull the material back again during the resetting process.

[0109] Reference Fig.15 and Fig.16 The second push plate 94 is shaped like a shovel at one side away from the connection portion with the first push plate 93 so that the second push plate 94 can shovel the plastic container which is easy to roll.

[0110] Reference Figure 1 , Figure 2 and Figure 3 The first transport conveyor belt 11 is fixedly installed on the frame 1 and is located at the bottom of the silo 71. The discharge port 522 of the silo 71 is opposite to the first transport conveyor belt 11. After the discharge port 522 of the silo 71 is opened, the recycled plastic containers in the silo 71 fall onto the first transport conveyor belt 11 and are discharged. The discharge end of the first transport conveyor belt 11 is connected to the label removal machine 13.

[0111] Two adjacent silos 71 are designed as a group. When one of the silos 71 is full, the interception plate 831 rises, and the next adjacent interception plate 831 descends to intercept the material, so that the two adjacent silos 71 switch storage with each other, which is convenient for calculating the weight of the material output from the silo 71. The last single silo 71 is used to store miscellaneous materials.

[0112] Reference Figure 4 and Figure 5 The second sorting device 3 includes a sorting conveyor belt 31 and a plurality of feeding channels 32. The sorting conveyor belt 31 is fixed to the frame 1. The feeding end of the sorting conveyor belt 31 is connected to the first output conveyor belt 22. The first output conveyor belt 22 is used to output the remaining mixed plastic containers after being screened by the first intelligent sorting machine 21.

[0113] Reference Figure 5 and Fig. 9The second collecting device 6 includes a plurality of classification bins 61 and a plurality of delivery mechanisms 62 corresponding to the classification bins 61. The classification bins 61 are arranged along the same straight line and are located on one side of the sorting conveyor belt 31. The classification bins 61 are suspended and mounted on the frame 1 through a weighing sensor 51. The sorting conveyor belt 31 is provided with a plurality of workstations, the number of which is the same as the number of the classification bins 61. The unlabeled plastic containers in the mixed recyclables on the sorting conveyor belt 31 are manually selected and then put into the corresponding classification bins 61 through the delivery mechanisms 62.

[0114] Reference Figure 5 The feeding channel 32 is fixed to the frame 1, and one end of part of the feeding channel 32 extends to above the collecting conveyor belt 53. The manually sorted plastic containers that still need to be removed from the labels are thrown into this part of the feeding channel 32, and then fall along the feeding channel 32 onto the collecting conveyor belt 53 and are sent to the collecting bin 52.

[0115] Reference Figure 5 A number of recycling boxes 33 are fixedly mounted on the frame 1, and the remaining feeding channels 32 extend to the recycling boxes 33 accordingly. The manually sorted and non-recyclable items will be delivered to the recycling boxes 33 for centralized processing. A recycling box 33 is also fixedly mounted on the frame 1 at the discharge end of the sorting conveyor belt 31 to recycle the remaining miscellaneous materials after sorting.

[0116] Reference Figure 3 , Figure 5 and Fig. 9 The classification bin 61 and the collection bin 52 are of the same design and are provided with the same baffle 56 and driving cylinder 57. The second output conveyor 43 is fixed to the frame 1 and is located below the classification bin 61. The discharge port 522 of the classification bin 61 faces the second output conveyor 43. The weighing sensor 51 detects that the loading weight of the classification bin 61 meets the standard, and the baffle 56 is opened by the driving cylinder 57 to put the material onto the second output conveyor 43 through the discharge port 522. The discharge end of the second output conveyor 43 is connected to the baler 14, and the plastic containers after manual classification are transported to the baler 14 for packaging.

[0117] Reference Figure 5 as well as Fig.17 —20, the delivery mechanism 62 includes a bracket 621, a weighing assembly 63, a hopper 622, a driving mechanism 64 and a collecting hopper 65. The hopper 622 is fixed to the frame 1 and is located on one side of the sorting conveyor belt 31. The hopper 622 has an upper opening 521 and a lower opening. The sorting conveyor belt 31 is arranged horizontally, one side of the upper opening 521 of the hopper 622 is flush with the conveying surface of the sorting conveyor belt 31, and one side of the upper opening 521 of the hopper 622 is connected to one side of the sorting conveyor belt 31. The upper opening 521 of the hopper 622 is higher than the conveying surface of the sorting conveyor belt 31 relative to the other side of the sorting conveyor belt 31.

[0118] The above design makes it difficult for the sorting personnel to throw the plastic container out of the hopper 622 because the side wall of the hopper 622 blocks the plastic container when the sorting personnel throw the plastic container into the hopper 622 .

[0119] Reference Figure 5 and Fig. 20 The bracket 621 is fixed to the frame 1 and is located on one side of the classification bin 61. The weighing assembly 63 includes four gravity sensors 631. The gravity sensors 631 are located at the bottom of the bracket 621. In the initial state, the collecting bucket 65 has an upper opening 521 and is mounted on the four gravity sensors 631. The collecting bucket 65 is weighed by the gravity sensor 631.

[0120] Reference Fig.17 , Fig.18 and Fig.19 The lower end of the feeding hopper 622 is rotatably mounted with a sealing plate 6221 for closing the lower opening of the feeding hopper 622, and one end of the sealing plate 6221 extends to the upper opening 521 of the collecting hopper 65 to feed the collecting hopper 65. A sealing cylinder 6222 is rotatably mounted on the bottom wall of the feeding hopper 622, and an arc-shaped push rod 6223 is fixedly mounted on the sealing plate 6221, and one end of the push rod 6223 is rotatably connected to the piston rod of the sealing cylinder 6222.

[0121] Reference Fig.17 , Fig.18 and Fig.19 When the piston rod of the closing cylinder 6222 is retracted, the sealing plate 6221 is flush with the inner wall of the feeding hopper 622, and the material can enter the collecting hopper 65 along the sealing plate 6221. When the gravity sensor 631 detects that the weight of the collecting hopper 65 reaches the standard, the closing cylinder 6222 starts to extend the piston rod to push the sealing plate 6221 through the arc-shaped push rod 6223 to close the lower opening of the feeding hopper 622. Then the driving mechanism 64 drives the collecting hopper 65 to rise to the upper opening 521 of the classification bin 61, and then continues to push the collecting hopper 65 to flip and dump the material into the classification bin 61.

[0122] Reference Fig. 20 , Fig.21 and Fig. 22The driving mechanism 64 includes two slide rails 641, two drive chains 642, two drive sprockets 643 and a drive motor 644. The two slide rails 641 are respectively located on both sides of the bracket 621 and are fixedly connected to the bracket 621, and the slide rails 641 are vertical. The two drive chains 642 are rotatably installed on both sides of the bracket 621, and the two drive sprockets 643 are rotated on both sides of the bracket 621 and are respectively engaged with the two drive chains 642. The drive motor 644 is fixedly installed at the bottom of the bracket 621, and the two drive sprockets 643 are also located at the bottom of the bracket 621. The two drive sprockets 643 are coaxially fixedly connected, and one of the drive sprockets 643 is transmission-connected to the output shaft of the drive motor 644 through a gear set.

[0123] Reference Fig. 20 , Fig.21 and Fig. 22 A lifting frame 66 is provided between the two driving chains 642, and a first mounting shaft 661 and a second mounting shaft 662 are fixedly installed on both sides of the lifting frame 66. The two first mounting shafts 661 are respectively slidably installed on the slide rail 641 and rotatably cooperate with the slide rail 641, and the two second mounting shafts 662 are respectively rotatably installed on the two driving chains 642.

[0124] Reference Fig. 20 , Fig.21 and Fig. 22 Two first long holes 663 are provided on both sides of the lifting frame 66. The length direction of the first long holes 663 is vertical. The two first long holes 663 on the same side are distributed in the vertical direction. Two support shafts 651 are fixedly installed on both sides of the collecting bucket 65. The support shafts 651 are slidably installed in the first long holes 663 respectively. A retaining ring 652 is coaxially fixedly installed on one end of the support shaft 651. The retaining ring 652 fits tightly against the lifting frame 66 to limit the support shaft 651, so that the support shaft 651 is not easy to slide out of the first long hole 663.

[0125] Reference Fig. 20 , Fig.21 and Fig. 22 When the collecting bucket 65 is mounted on the gravity sensor 631, the support shaft 651 is separated from the lower end of the first long hole 663, and the collecting bucket 65 is supported by the gravity sensor 631. When the driving motor 644 starts to drive the driving chain 642 to rotate, the lifting frame 66 rises, and the support shaft 651 is pressed against the lower end of the first long hole 663, driving the support shaft 651 and the collecting bucket 65 to rise through the lifting frame 66.

[0126] Reference Fig. 20 , Fig.21 and Fig. 22The aperture of the upper end of the first long hole 663 is larger than the aperture of the lower end of the first long hole 663. When the support shaft 651 is pressed against the lower end of the first long hole 663, the side wall of the lower end of the first long hole 663 is tightly fitted against the side wall of the support shaft 651, so that the support shaft 651 is not easily stuck between the side wall of the first long hole 663 when moving in the first long hole 663.

[0127] Reference Fig. 20 , Fig.21 and Fig. 22 The upper end of the slide rail 641 is bent toward the upper opening 521 of the classification bin 61, and the bent end of the slide rail 641 is horizontal, and the slide rail 641 is located between the drive chain 642 and the classification bin 61. When the drive chain 642 lifts the lifting frame 66 to the height of the upper opening 521 of the classification bin 61, the first installation shaft 661 slides along the slide rail 641 toward the upper opening 521 of the classification bin 61, thereby driving the lifting frame 66 to flip toward the upper opening 521 of the classification bin 61, and then driving the collection bucket 65 to flip toward the upper opening 521 of the classification bin 61 through the lifting frame 66 to pour the materials in the collection bucket 65 into the classification bin 61.

[0128] Reference Fig. 20 , Fig.21 and Fig. 22 The second transport conveyor belt 12 is fixed to the frame 1 and is located below the classification bin 61. The unloading port 522 of the classification bin 61 is opposite to the second transport conveyor belt 12. The discharge end of the second transport conveyor belt 12 is connected to the baler 14. After the baffle 56 of the classification bin 61 is opened, the material inside it falls onto the second transport conveyor belt 12 and is then transported to the baler 14 for packaging.

[0129] Reference Fig. 20 , Fig.21 and Fig. 22 At the same time, since the curved section of the slide rail 641 is horizontal, while the lifting frame 66 can be flipped to the maximum angle, when the driving chain 642 drives the lifting frame 66 to descend, the first mounting shaft 661 is not easy to get stuck between the slide rail 641 bracket 621, causing the lifting frame 66 to fail to descend.

[0130] Reference Fig. 20 , Fig.21 and Fig. 22A second inclined long hole 664 is provided on both sides of the lifting frame 66, and the second long hole 664 is connected to the first long hole 663 located on the upper side. When the first long hole 663 is vertical, the second long hole 664 is located on the side of the first long hole 663 facing the classification bin 61, and the upper end of the second long hole 664 is inclined toward the classification bin 61. When the lifting frame 66 is flipped over, the support shaft 651 will slide toward the second long hole 664 under the action of gravity of the collecting bucket 65, thereby causing the collecting bucket 65 to further rotate downward, making it difficult for plastic containers to remain in the collecting bucket 65.

[0131] Reference Fig. 20 , Fig.23 and Fig.24 Since the environment in the waste plastic container recycling station is relatively harsh, lubrication devices 10 are provided on both sides of the bracket 621 to lubricate and rust-proof the drive sprocket 643 and the drive chain 642, so that the drive sprocket 643 and the drive chain 642 are not prone to rust during daily use.

[0132] Reference Fig. 20 , Fig.23 and Fig.24 The lubrication device 10 includes a lubrication oil tank 101 fixedly mounted on the bracket 621 , an oil dripping pipe 102 sealed and fixedly mounted on the bottom wall of the lubrication oil tank 101 , and a worm 103 coaxially fixedly mounted on the driving sprocket 643 .

[0133] Reference Fig. 20 , Fig.23 and Fig.24 One end of the oil dripping pipe 102 extends to the driving sprocket 643, and the lubricating oil tank 101 drips oil to lubricate the driving sprocket 643 through the oil dripping pipe 102. The bracket 621 is rotatably installed with a worm wheel 104 meshing with the worm 103, and the worm wheel 104 is coaxially installed with a screw rod 105. The bracket 621 is slidably installed with a push block 106, and the screw rod 105 passes through the push block 106 and is threadedly matched with the push block 106.

[0134] Reference Fig. 20 , Fig.23 and Fig.24 A sealing block 107 and a tightening block 108 are provided in the lubricating oil tank 101. The sealing block 107 and the tightening block 108 are both slidably installed on the side wall of the lubricating oil tank 101. The sealing block 107 slides vertically. The sealing block 107 can slide to tighten against the bottom wall of the lubricating oil tank 101 to close the connecting hole between the oil drip tube 102 and the bottom wall of the lubricating oil tank 101. A spring 109 is provided between the sealing block 107 and the bottom wall of the lubricating oil tank 101. The two ends of the spring 109 are fixedly connected to the sealing block 107 and the bottom wall of the lubricating oil tank 101 respectively. Under normal circumstances, the spring 109 pushes the sealing block 107 away from the bottom wall of the lubricating oil tank 101.

[0135] Reference Fig. 20 , Fig.23 and Fig.24 The top wall of the sealing block 107 is provided with a first inclined surface 1071, and one end of the pressing block 108 is provided with a second inclined surface 1081. The first inclined surface 1071 and the second inclined surface 1081 are pressed against each other, and the other end of the pressing block 108 is sealed and slid through the side wall of the lubricating oil tank 101. When the end surface of the pressing block 108 located outside the lubricating oil tank 101 slides to be flush with the side wall of the lubricating oil tank 101, the pressing block 108 pushes the sealing block 107 against the bottom wall of the lubricating oil tank 101 through the cooperation between the second inclined surface 1081 and the first inclined surface 1071 to close the connection hole between the drip tube 102 and the bottom wall of the lubricating oil tank 101.

[0136] Reference Fig. 20 , Fig.23 and Fig.24 When the collecting bucket 65 is mounted on the gravity sensor 631 and the lifting frame 66 is located at the lower end of the bracket 621, the pushing block 106 fits tightly against the side wall of the lubricating oil tank 101 and the end face of the pressing block 108, so that the end face of the pressing block 108 is flush with the side wall of the lubricating oil tank 101, and the sealing block 107 presses against the bottom wall of the lubricating oil tank 101 to close the connecting hole between the oil drip tube 102 and the bottom wall of the lubricating oil tank 101.

[0137] Reference Fig. 20 , Fig.23 and Fig.24 When the lifting frame 66 rises, the driving sprocket 643 drives the worm 103 to rotate, the worm 103 drives the screw 105 to rotate, the screw 105 drives the push block 106 to slide away from the locking block 108, and the sealing block 107 is separated from the bottom wall of the lubricating oil tank 101 under the action of the spring 109, thereby connecting the oil drip pipe 102 to the lubricating oil tank 101.

[0138] Reference Fig. 20 , Fig.23 and Fig.24 A pressure plate 1011 is vertically and sealedly installed in the lubricating oil tank 101. The pressure block is horizontal. The pressure plate 1011 is used to provide pressure to the oil in the lubricating oil tank 101 to press the oil out of the drip tube 102. A detection rod 1012 is fixedly installed on the top wall of the pressure block. One end of the detection rod 1012 is sealed and slidably passed through the lubricating oil tank 101 to the side wall of the lubricating oil tank 101. Position sensors 1013 are provided on the upper and lower sides of the outer side wall of the lubricating oil tank 101 to sense the position of the end of the detection rod 1012.

[0139] Reference Fig. 20 , Fig.23 and Fig.24The bottom wall of the lubricating oil tank 101 is fixedly installed with a refueling valve 1014, and the refueling valve 1014 adopts a one-way valve. The frame 1 is fixed with an oil storage tank for storing anti-rust oil, and the oil storage tank is fixedly installed with a plurality of refueling valves 1014 corresponding to the one-way valves, and the refueling valves 1014 are connected to the one-way valves through pipelines, and an oil pump is fixedly installed in the oil storage tank for refueling the lubricating oil tank 101.

[0140] Reference Fig. 20 , Fig.23 and Fig.24 When the position sensor located at the lower side of the lubricating oil tank 101 detects the end of the detection rod 1012 and the gravity sensor 631 detects the weight, the oil pump starts and the refueling valve 1014 corresponding to the lubricating oil tank 101 opens to add oil to the lubricating oil tank 101. When the position sensor 1013 located at the upper side of the lubricating oil tank 101 detects the end of the detection rod 1012, the refueling stops.

[0141] Reference Fig. 20 , Fig.23 and Fig.24 Because it is necessary to take into account that when the lubricating oil tank 101 detects that refueling is needed, the lubricating oil tank 101 is still in a dripping state to the driving sprocket 643, a gap is designed between the bottom of the lubricating oil tank 101 and the position sensor 1013 located on the lower side of the lubricating oil tank 101, so that there is a certain amount of redundant oil in the lubricating oil tank to complete the final lubrication and rust prevention for the driving sprocket 643.

[0142] In a second aspect, this embodiment discloses a sorting method for a container sorting line, comprising the following steps:

[0143] S1. Separate labeled plastic containers from overall recycling;

[0144] S2, classifying the labeled plastic containers according to the categories of the plastic containers;

[0145] S3, manually picking out the unlabeled waste containers and unscreened labeled waste containers from the remaining recyclables in S1, and then storing the unlabeled waste containers according to the categories of plastic containers, and putting the labeled waste containers back into S2 for classification;

[0146] Any category of unlabeled waste containers screened out in S4 and S3 will be transported to the baler for packaging after reaching the weight standard;

[0147] The labeled waste containers classified in S5 and S2 are transported to the label removing machine for label removal once the weight of any category reaches the standard, and then transported to the baling machine for packaging.

[0148] The above-mentioned sorting method is applicable to the assembly line described in the first aspect of this embodiment.

[0149] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A container sorting line, characterized in that: include: A feeding device (15) for feeding materials; A first sorting device (2) is used to screen out the recycled plastic containers with labels from the large batch of recycled plastic containers and output the two separately; A first collecting device (5) is used to receive and weigh the labeled recycled plastic containers sorted and output by the first sorting device (2); A second sorting device (3) is used to receive the recyclables remaining after the first sorting device (2) screens out the recyclable plastic containers with labels, sort the recyclable plastic containers without labels and then output them; A second collecting device (6) is used to receive and weigh the unlabeled recycled plastic containers sorted and output by the second sorting device (3); A third sorting device (4) is used to sort and output the labeled recycled plastic containers in the first collecting device (5); The third collecting device (7) is used to receive the labeled recycled plastic containers sorted by the third sorting device (4).

2. A container sorting line according to claim 1, characterized in that: The first sorting device (2) comprises: A first intelligent sorting machine (21) for screening out labeled recycled plastic containers from bulk recyclables; Two first output conveyor belts (22) are provided, respectively used for conveying labeled recycled plastic containers and remaining recyclables; The second sorting device (3) comprises a sorting conveyor belt (31) for receiving the mixed plastic containers output by the first output conveyor belt (22), a plurality of feeding channels (32) and a plurality of recycling boxes (33). The sorting conveyor belt (31) is provided with a plurality of workstations for manually sorting the mixed plastic containers, wherein a part of the feeding channels (32) is used to deliver the sorted labeled plastic containers to the first collecting device (5), and the remaining feeding channels (32) are used to deliver the sorted non-recyclable materials to the recycling boxes (33) for collection.

3. A container sorting line according to claim 1, characterized in that: The third sorting device (4) comprises: A feeding conveyor belt (41) is used to receive and output the articles output by the first collecting device (5); A second intelligent sorting machine (42) is used to receive the items output by the feed conveyor belt (41) and sort the labeled recycled plastic containers into subcategories; The second output conveyor belt (43) is provided with two belts, which are used to output the screened recycled plastic containers and the remaining recycled plastic containers respectively; The recycling mechanism (8) is connected to the second output conveyor belt (43) for outputting the remaining recycled plastic containers, and is used to store and weigh the remaining recycled plastic containers output by the second output conveyor belt (43), and after the weight reaches a standard, the remaining recycled plastic containers are transported back to the feed conveyor belt (41).

4. A container sorting line according to claim 3, characterized in that: The recovery mechanism (8) comprises: A buffer bin (81) is provided with a plurality of containers for storing in batches the remaining recycled plastic containers output by the second output conveyor belt (43); A weighing component (63) used for weighing the buffer bin (81); A first recycling conveyor belt (82) is used to receive the remaining recycled plastic containers output by the second output conveyor belt (43) and transport them to each buffer bin (81) for temporary storage; A plurality of discharge hoppers (821) are provided, corresponding one to one with the buffer bins (81), and are arranged on one side of the first recovery conveyor belt (82), and are used to discharge the material on the first recovery conveyor belt (82) into the buffer bin (81); An interception component (83) is arranged on the first recycling conveyor belt (82), and is provided with a plurality of components corresponding one to one with the discharge hopper (821), and is used to block the material on the first recycling conveyor belt (82) so that the material is discharged along the discharge hopper (821), and is opened accordingly according to the sorting round of the second intelligent sorting machine (42).

5. A container sorting line according to claim 4, characterized in that: A material pushing mechanism (9) is provided at the top of the buffer bin (81), the material pushing mechanism (9) comprising a material pushing frame (91), a material pushing cylinder (92), a first material pushing plate (93), a second material pushing plate (94) and a support plate (95), the material pushing frame (91) is provided at the top of the buffer bin (81), the first material pushing plate (93) is slidably mounted on the material pushing frame (91), the second material pushing plate (94) is rotatably mounted on the first material pushing plate (93), the material pushing cylinder (92) is used to push the first material pushing plate (93) to slide, the material pushing frame (91) extends into the buffer bin (81), and in an initial state, the first material pushing plate (93) is The first push plate (93) and the second push plate (94) are both located outside the buffer bin (81); when the first push plate (93) and the second push plate (94) slide toward the inside of the buffer bin (81), the support plate (95) is used to support and stop the second push plate (94); the second push plate (94) is used to push the material in the buffer bin (81) to the other side; when the first push plate (93) and the second push plate (94) slide toward the outside of the buffer bin (81), the second push plate (94) rotates under the push of the material, and the support of the support plate (95) on the second push plate (94) fails.

6. A container sorting line according to claim 2, characterized in that: The second collecting device (6) comprises: A classification bin (61) is provided, which is used to collect unlabeled recycled plastic containers of different categories; The delivery mechanism (62) is provided with a plurality of corresponding classification bins (61) and is used for delivering the manually sorted materials on the sorting conveyor belt (31) to the corresponding classification bins (61).

7. A container sorting line according to claim 6, characterized in that: The delivery mechanism (62) comprises: A bracket (621) is used as a mounting base; A feeding hopper (622) is used to receive and output materials after manual sorting; A collecting hopper (65) for receiving the output material from the feeding hopper (622); A weighing assembly (63) for weighing the weight of the collecting bucket (65); The collecting hopper (65) is installed on the bracket (621) in a lifting manner. The bracket (621) is provided with a driving mechanism (64) for driving the collecting hopper (65) to rise to the upper opening (521) of the classification bin (61) and then pouring materials into the hopper. The driving mechanism (64) is also used to reset the collecting hopper (65).

8. A container sorting line according to claim 7, characterized in that: The driving mechanism (64) comprises a driving chain (642) rotatably mounted on the bracket (621), a driving motor (644) provided on the bracket (621), and a slide rail (641) provided on the bracket (621); the driving chain (642) is vertical; the slide rail (641) is vertical and the upper end of the slide rail (641) is bent and extends to the upper opening (521) of the classification bin (61); the driving motor (644) is drivingly connected to the driving chain (642); the upper side of the collecting bucket (65) is rotatably and slidably mounted on the slide rail (641); and the lower side of the collecting bucket (65) is rotatably mounted on the chain; the bracket (621) is provided with a lubrication device (10) for rust-proof lubrication of the driving chain (642) and the driving sprocket (643).

9. A container sorting line according to claim 6, characterized in that: The bottom wall of the classification bin (61) is provided with a discharge port (522) for discharging materials. The classification bin (61) is slidably mounted with a plurality of baffles (56), the baffles (56) being assembled together to close the discharge port (522). The classification bin (61) is provided with a plurality of driving cylinders (57) for respectively driving the baffles (56) to slide.

10. A sorting method for a container sorting line, characterized in that: The following steps are involved: S1. Separate labeled plastic containers from overall recycling; S2, classifying the labeled plastic containers according to the categories of the plastic containers; S3, manually picking out the unlabeled waste containers and unscreened labeled waste containers from the remaining recyclables in S1, and then storing the unlabeled waste containers according to the categories of plastic containers, and putting the labeled waste containers back into S2 for classification; Any category of unlabeled waste containers screened out in S4 and S3 will be transported to the baler for packaging after reaching the weight standard; After the waste containers with labels are classified in S5 and S2, if the weight of any category reaches the standard, they are transported to the label removing machine for label removal, and then transported to the packaging machine for packaging after the label removal is completed; The above method is adapted to the container sorting line described in any one of claims 1 to 9.

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