An automated sorting device for recycled plastics

Abstract

This invention belongs to the field of automatic sorting technology, specifically an automatic sorting device for recycled plastics. It includes a sorting conveyor belt, an automatic identification station mounted on the upper surface of one end of the conveyor belt, and a sorting mechanism mounted below the lower end of the conveyor belt. The sorting mechanism includes a mounting plate with discharge holes on its upper surface, arranged in a grid pattern. This automatic sorting device for recycled plastics, by mounting the sorting mechanism on the end surface of the conveyor belt, reduces the length requirements of the conveyor belt compared to existing surface-based sorting methods. The grid-like arrangement of multiple sorting tubes surrounding the discharge frame facilitates diverse classification while reducing the switching distance between different sorting tubes through a compact structure, enabling rapid and continuous sorting. Therefore, it is characterized by its ability to automatically sort plastics.

Description

Technical Field

[0001] This invention relates to the field of automatic sorting technology, and more particularly to an automatic sorting device for recycled plastics. Background Technology

[0002] A high-precision, high-efficiency automatic plastic bottle sorting integrated system and device (application number: 202210740778.0) disclosed on the Chinese patent website, although solving the technical problems of poor recognition accuracy and low recognition efficiency faced by most known automatic plastic bottle sorting technologies, still has the following problems:

[0003] In practical use, multiple sorting devices are usually installed on the surface of the plastic conveyor belt. For example, a swing arm pushes the plastic out of the conveyor belt surface for sorting, or a robotic arm clamps the plastic. As the types of sorting increase, the number of swing arms or robotic arms needs to be increased accordingly, resulting in a bulky conveyor belt surface. A certain length of conveyor belt is required to meet the needs, which reduces the practical performance and makes it unsuitable for various specifications of conveyor belts, making it inconvenient for plastic sorting. Summary of the Invention

[0004] To address the technical problem of excessively high requirements for conveyor belts in existing plastic sorting equipment, this invention proposes an automatic sorting device for recycled plastics.

[0005] This invention proposes an automatic sorting device for recycled plastics, comprising a sorting conveyor belt, an automatic identification station installed on the upper surface of one end of the conveyor belt, and a sorting mechanism installed below the end of the conveyor belt. The sorting mechanism includes a mounting plate, a feeding hole on the upper surface of the mounting plate, multiple feeding holes being distributed in a grid pattern, and sorting blocks fixedly connected to the lower surface of multiple mounting plates. The upper surface of the sorting blocks has a feeding hole, which is funnel-shaped. A sorting tube is fixedly connected to the lower surface of the sorting blocks, and the sorting tube is L-shaped, with the upper opening of the sorting tube aligned with and communicating with the lower opening of the feeding hole.

[0006] A drive mechanism is installed on the lower surface of the conveyor belt. The drive mechanism includes a longitudinal drive mechanism and a transverse drive mechanism. Both the longitudinal drive mechanism and the transverse drive mechanism include a mounting plate, a double rack, a drive gear, a transmission gear, and a fan plate. The lower surface of the mounting plate is rotatably connected to the drive gear via a rotating shaft. The two ends of the lower surface of the mounting plate are rotatably connected to two transmission gears via rotating shafts, respectively. The outer wall surfaces of the two transmission gears are connected to the outer surface of the drive gear. The lower surfaces of the two transmission gears are fixedly connected to the upper surface of the fan plate. The outer wall surface of the fan plate and the outer surfaces of both sides of the double rack are provided with locking teeth. The double rack is located between the two fan plates.

[0007] Preferably, the upper inner wall of the sorting block is provided with an installation groove, and the inner wall of the installation groove is rotatably connected to a detection gear through a bearing. Both the inner wall of the detection gear and the upper inner wall of the sorting block are equipped with infrared photoelectric switches. A single rack is slidably inserted into the outer wall surface of the sorting block, and the surface of the single rack is connected to the outer surface of the detection gear through a toothed drive.

[0008] The above technical solution utilizes a single rack to drive the detection gear and one set of infrared photoelectric switches to deflect, thereby facilitating the addition of two sets of infrared photoelectric switches to detect plastic bottles entering the sorting block.

[0009] Preferably, an installation strip is fixedly connected to the inner wall surface of the detection gear, and an acceleration tube is fixedly connected to the lower end of the installation strip. The acceleration tube is located at the bend of the sorting tube. The acceleration tube is made of polyurethane flexible tubing, and a ball bearing is rotatably connected to the surface of the acceleration tube. One end of the ball bearing is slidably connected to the inner wall of the bend of the sorting tube.

[0010] The above technical solution utilizes ball bearings to replace the inner wall of the sorting tube at the bend in contact with the plastic, thereby reducing friction between the plastic and the plastic and accelerating the passage of the plastic through the sorting tube. When the plastic size is too small and the sorting tube size is too large, the passage time increases. The end of the sorting tube can be connected to the upper opening of the corresponding recycling bin through an interference fit cloth sleeve.

[0011] Preferably, a groove is formed on the upper surface of the mounting plate, a slider is slidably connected to the inner wall of the groove, a thrust spring is fixedly connected to the side wall of the slider, and the end of the thrust spring is fixedly connected to the inner wall of one end of the groove.

[0012] The above technical solution utilizes a thrust spring to push the mounting plate into the upper opening surface of the feed hole, thereby facilitating the normal closed state of the feed hole opening.

[0013] Preferably, a telescopic rod is fixedly connected to the side wall surface of one of the sliders, the telescopic rod is located inside the thrust spring, the end of the telescopic rod is connected and fixed to the end of the single rack through a connecting block, and a cover plate is fixedly connected to the upper surface of the slider, the cover plate is located above the mounting plate.

[0014] The above technical solution utilizes a slider to drive a single rack via a telescopic rod, thereby facilitating the single rack's drive of the detection gear.

[0015] Preferably, a mounting spring is fixedly connected to the lower surface of the middle part of the mounting plate, a mounting base is fixedly connected to the lower end of the mounting spring, a connecting rod is fixedly connected to the lower surface of the mounting base, a counterweight box is slidably connected to the lower end of the connecting rod, a movable groove is opened at the upper end of the counterweight box, a limit block is slidably connected to the inner wall of the movable groove, the upper surface of the limit block is fixedly connected to the lower end of the connecting rod, and a recycling box is installed on the outer wall surface of the counterweight box, with multiple recycling boxes located below multiple sorting tubes respectively.

[0016] The above technical solution utilizes a counterweight box to movably mount the mounting plate via a mounting base, thereby facilitating the movement of multiple sorting tubes in multiple directions by the mounting plate.

[0017] Preferably, a first drive motor and a second drive motor are fixedly connected to the upper surfaces of the two mounting plates, respectively. The output shafts of the first drive motor and the second drive motor are respectively connected to two drive gears. The upper surface of the first drive motor is fixedly connected to the inner top wall of the conveyor belt.

[0018] The above technical solution utilizes a first drive motor and a second drive motor to drive two drive gears respectively, thereby providing power for the operation of the drive mechanism. Both the first drive motor and the second drive motor are electrically connected to the automatic identification station, thus facilitating the control of the operation of the first drive motor and the second drive motor based on the detection results of the automatic identification station.

[0019] Preferably, a limiting rod is fixedly connected to the upper surface of the second drive motor. The limiting rod has a T-shaped cross-section. A guide groove is provided on the inner top wall of the conveyor belt. The inner wall of the guide groove is slidably connected to the upper outer surface of the limiting rod.

[0020] The above technical solution utilizes guide grooves and limiting rods to movably mount the second drive motor, thereby facilitating the overall movement of the transverse drive mechanism along the opening direction of the guide grooves.

[0021] Preferably, a connecting frame is fixedly connected to one outer surface of the double rack in the transverse drive mechanism. The connecting frame is U-shaped, and one outer surface of the connecting frame is fixedly connected to the outer wall surface of the mounting plate. One end of the double rack in the longitudinal drive mechanism is slidably connected to the outer wall surface of the connecting frame.

[0022] The above technical solution strengthens the connection between the lateral drive mechanism and the mounting plate by using a connecting block, while facilitating the movable connection between the lateral drive mechanism and the longitudinal drive mechanism. A similar limit rod-like structure is also fixed at one end of the double rack in the longitudinal drive mechanism, and a suitable guide groove is opened on the outer wall surface of the connecting block, thereby facilitating the longitudinal drive mechanism to push and pull the lateral drive mechanism.

[0023] Preferably, a mounting rod is fixedly connected to the lower surface of the end of the conveyor belt, a feeding frame is fixedly connected to the lower surface of the mounting rod, and a push column is fixedly connected to the lower surface of the feeding frame.

[0024] The above technical solution utilizes multiple pushers to push the cover plate in different directions, thereby facilitating unobstructed flow at the top of the discharge hole.

[0025] How to use:

[0026] Step 1: Start the conveyor belt and automatic identification station. Place the plastic on the surface of the conveyor belt for conveying. After the automatic identification station identifies the plastic, the first drive motor and the second drive motor run while the plastic is being conveyed.

[0027] Step 2: The drive motor drives the transmission gear to rotate through the drive gear. The transmission rack drives the double rack through the sector plate. The double rack in the longitudinal drive mechanism pushes and pulls the transverse drive mechanism. Then, the transverse drive mechanism pushes and pulls the mounting plate longitudinally. After the transverse drive mechanism is started, it pushes and pulls the mounting plate laterally through the double rack and the connecting frame. When the longitudinal drive mechanism and the transverse drive mechanism are used together, the mounting plate is tilted and pulled.

[0028] Step 3: When the mounting plate moves, the selected sorting block moves directly below the conveyor belt. The cover plate above the selected sorting block moves together, but is blocked by the push column. The cover plate and the slider below remain relatively stationary. The chute moves with the mounting plate, the cover plate separates from the sorting block, and the top of the sorting block is unobstructed. At the same time, the thrust spring and the telescopic rod are squeezed. The telescopic rod is further driven, which causes transmission between the single rack and the detection gear. The detection gear deflects and drives the acceleration tube to deflect through the mounting strip. The acceleration tube drives the ball to rub against the inner wall of the sorting tube, and the ball rolls.

[0029] Step four: Simultaneously, the mounting plate moves the connecting rod on the surface of the counterweight box via the mounting spring. As the conveyor belt runs, the plastic enters the sorting block through the feeding frame and triggers the corresponding infrared photoelectric switch. Then it enters the sorting tube, and after the friction is reduced by the ball bearings, it quickly slides out into the corresponding recycling bin.

[0030] The beneficial effects of this invention are as follows:

[0031] 1. By installing a sorting mechanism on the end surface of the conveyor belt, compared with the existing sorting method on the surface of the conveyor belt, the length specification requirements of the conveyor belt are reduced. Multiple sorting tubes are distributed in a grid pattern and surround the bottom of the unloading frame. This facilitates diversified classification while reducing the switching distance between different sorting tubes through a compact structure, enabling rapid and continuous sorting. This makes it convenient for automatic sorting of plastics.

[0032] 2. By sealing the upper opening of the feeding hole, the push column pushes open the cover plate on the surface of the corresponding feeding hole only when the mounting plate moves, thus allowing the material to be fed. This avoids interference between multiple feeding holes that are too closely distributed, which could lead to sorting errors. At the same time, an infrared photoelectric switch is installed in the sorting block. The triggering status of the infrared photoelectric switch by the plastic determines whether the feeding is correct, further enhancing the accuracy of sorting.

[0033] 3. By setting up two sets of longitudinal and transverse drive mechanisms to drive the mounting plate, the mounting plate can move multiple sorting tubes around it to the end of the conveyor belt. At the same time, the drive mechanism is simple and easy to maintain and use because it only uses two drive motors as power sources. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of an automatic sorting device for recycled plastics proposed in this invention;

[0035] Figure 2 This is a cross-sectional view of the conveyor belt structure of an automatic sorting device for recycled plastics proposed in this invention.

[0036] Figure 3 This is a cross-sectional view of the mounting tray structure of an automatic sorting device for recycled plastics proposed in this invention.

[0037] Figure 4 This is a perspective view of the sorting tube structure of an automatic sorting device for recycled plastics proposed in this invention;

[0038] Figure 5 This is a perspective view of the acceleration tube structure of an automatic sorting device for recycled plastics proposed in this invention.

[0039] Figure 6 This is a perspective view of the counterweight box structure of an automatic sorting device for recycled plastics proposed in this invention;

[0040] Figure 7 This is an inverted view of the conveyor belt structure of an automatic sorting device for recycled plastics proposed in this invention.

[0041] Figure 8 This is a perspective view of the longitudinal drive mechanism of an automatic sorting device for recycled plastics proposed in this invention.

[0042] Figure 9 This is an inverted diagram of the lotus-scented drive mechanism of an automatic sorting device for recycled plastics proposed in this invention.

[0043] In the diagram: 1. Conveyor belt; 2. Automatic identification station; 3. Sorting mechanism; 31. Mounting plate; 32. Sorting block; 33. Sorting tube; 34. Detection gear; 35. Infrared photoelectric switch; 36. Single rack; 37. Mounting strip; 38. Acceleration tube; 39. Ball bearing; 310. Slider; 311. Thrust spring; 312. Telescopic rod; 313. Cover plate; 314. Mounting spring; 315. Mounting base; 316. Connecting rod; 317. Counterweight box; 318. Limiting block; 319. Recycling box; 4. Longitudinal drive mechanism; 41. Transverse drive mechanism; 411. Mounting plate; 412. Double rack; 413. Drive gear; 414. Transmission gear; 415. Fan plate; 42. First drive motor; 43. Second drive motor; 44. Limiting rod; 45. Connecting frame; 5. Discharge frame; 6. Push column. Detailed Implementation

[0044] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0045] Reference Figures 1-9 An automatic sorting device for recycled plastics includes a sorting conveyor belt 1, an automatic identification station 2 installed on the upper surface of one end of the conveyor belt 1, and a sorting mechanism 3 installed below the end of the conveyor belt 1. The sorting mechanism 3 includes a mounting plate 31, a feeding hole is opened on the upper surface of the mounting plate 31, and multiple feeding holes are distributed in a grid pattern. Sorting blocks 32 are fixedly connected to the lower surface of multiple mounting plates 31. The upper surface of the sorting blocks 32 is opened with a feeding hole, which is funnel-shaped. A sorting tube 33 is fixedly connected to the lower surface of the sorting blocks 32. The sorting tube 33 is L-shaped, and the upper opening of the sorting tube 33 is aligned with and connected to the lower opening of the feeding hole.

[0046] A drive mechanism is installed on the lower surface of the conveyor belt 1. The drive mechanism includes a longitudinal drive mechanism 4 and a transverse drive mechanism 41. Both the longitudinal drive mechanism 4 and the transverse drive mechanism 41 include a mounting plate 411, a double rack 412, a drive gear 413, a transmission gear 414, and a fan plate 415. The lower surface of the mounting plate 411 is rotatably connected to the drive gear 413 via a rotating shaft. The two ends of the lower surface of the mounting plate 411 are rotatably connected to two transmission gears 414 via rotating shafts, respectively. The outer wall surfaces of the two transmission gears 414 are connected to the outer surface of the drive gear 413. The lower surfaces of the two transmission gears 414 are fixedly connected to the upper surface of the fan plate 415. The outer wall surface of the fan plate 415 and the outer surfaces of both sides of the double rack 412 are provided with locking teeth. The double rack 412 is located between the two fan plates 415.

[0047] To sort plastics, an installation groove is provided on the inner sidewall of the upper end of the sorting block 32. A detection gear 34 is rotatably connected to the inner wall of the installation groove via bearings. Infrared photoelectric switches 35 are installed on both the inner sidewall of the detection gear 34 and the inner sidewall of the upper end of the sorting block 32. A single rack 36 is slidably inserted into the outer sidewall surface of the sorting block 32. The surface of the rack 36 is connected to the outer surface of the detection gear 34 via a toothed drive. The rack 36 drives the detection gear 34 and one set of infrared photoelectric switches 35 to deflect, thus facilitating the addition of two sets of infrared photoelectric switches 35 to detect plastic bottles entering the sorting block 32. A [missing information - likely a component or component] is fixedly connected to the inner sidewall surface of the detection gear 34. The mounting strip 37 has an acceleration tube 38 fixedly connected to its lower end. The acceleration tube 38 is located at the bend of the sorting tube 33 and is made of polyurethane flexible tubing. A ball bearing 39 is rotatably connected to the surface of the acceleration tube 38. One end of the ball bearing 39 is slidably connected to the inner wall of the bend of the sorting tube 33. The ball bearing 39 replaces the inner wall of the bend of the sorting tube 33 to contact the plastic, thereby reducing friction between the ball bearing and the plastic and accelerating the passage of the plastic through the sorting tube 33. When the plastic size is too small and the size of the sorting tube 33 is too large, the passage time increases. The end of the sorting tube 33 can be connected to the upper opening of the corresponding recycling bin 319 through an interference fit cloth sleeve.

[0048] To facilitate the rapid passage of plastic through the sorting tube 33, a groove is formed on the upper surface of the mounting plate 31. A slider 310 is slidably connected to the inner wall of the groove, and a thrust spring 311 is fixedly connected to the side wall of the slider 310. The end of the thrust spring 311 is fixedly connected to the inner wall of one end of the groove. The thrust spring 311 pushes the mounting plate 31 towards the upper opening surface of the feed hole, thus facilitating the normal closing of the feed hole opening. A telescopic rod 312 is fixedly connected to the side wall surface of one of the sliders 310. The telescopic rod 312 is located inside the thrust spring 311, and the end of the telescopic rod 312 is connected and fixed to the end of the single rack 36 through a connecting block. A cover plate 313 is fixedly connected to the upper surface of the slider 310. The cover plate 313 is located above the mounting plate 31. The slider 310 drives the single rack 36 through the telescopic rod 312, thus facilitating the single rack 36 to drive the detection gear 34.

[0049] By installing a sorting mechanism 3 on the end surface of the conveyor belt 1, compared with the existing sorting method on the surface of the conveyor belt 1, the length specification requirements of the conveyor belt 1 are reduced. By using multiple sorting tubes 33 distributed in a grid pattern and surrounding the bottom of the unloading frame 5, it is possible to facilitate diversified classification. At the same time, the compact structure reduces the switching distance between different sorting tubes 33, enabling rapid continuous sorting. This makes it easy to automatically sort plastics.

[0050] To enable movable installation of the mounting tray 31, a mounting spring 314 is fixedly connected to the lower surface of the middle part of the mounting tray 31. A mounting base 315 is fixedly connected to the lower end of the mounting spring 314. A connecting rod 316 is fixedly connected to the lower surface of the mounting base 315. A counterweight box 317 is slidably connected to the lower end of the connecting rod 316. A movable groove is opened at the upper end of the counterweight box 317. A limit block 318 is slidably connected to the inner wall of the movable groove. The upper surface of the limit block 318 is fixedly connected to the lower end of the connecting rod 316. A recycling box 319 is installed on the outer wall surface of the counterweight box 317. Multiple recycling boxes 319 are located below multiple sorting tubes 33. The mounting tray 31 is movablely installed using the counterweight box 317 and the mounting base 315, which facilitates the mounting tray 31 to drive multiple sorting tubes 33 to move in multiple directions.

[0051] By sealing the upper opening of the feeding hole, the pusher 6 pushes open the cover plate 313 on the surface of the corresponding feeding hole only when the mounting plate 31 moves, thus allowing feeding to proceed. This avoids interference between multiple feeding holes that are too closely distributed, which could lead to sorting errors. At the same time, an infrared photoelectric switch 35 is installed in the sorting block 32. The correctness of feeding is determined by the triggering status of the infrared photoelectric switch 35 by the plastic, further enhancing the accuracy of sorting.

[0052] To drive the mounting plate 31, a first drive motor 42 and a second drive motor 43 are fixedly connected to the upper surfaces of the two mounting plates 411, respectively. The output shafts of the first drive motor 42 and the second drive motor 43 are respectively connected to two drive gears 413. The upper surface of the first drive motor 42 is fixedly connected to the inner top wall of the conveyor belt 1. The first drive motor 42 and the second drive motor 43 drive the two drive gears 413, thereby providing power for the operation of the drive mechanism. Both the first drive motor 42 and the second drive motor 43 are electrically connected to the automatic identification station 2, so as to facilitate the control of the operation of the first drive motor 42 and the second drive motor 43 according to the detection results of the automatic identification station 2. A limit rod 44 is fixedly connected to the upper surface of the second drive motor 43. The cross-section of the limit rod 44 is T-shaped. A guide groove is opened in the inner top wall of the conveyor belt 1. The inner wall of the guide groove is connected to the inner wall of the conveyor belt 1. The upper outer surface of the limiting rod 44 is slidably connected, and the second drive motor 43 is movably installed using the guide groove and the limiting rod 44, so that the entire transverse drive mechanism 41 can move along the opening direction of the guide groove. A connecting frame 45 is fixedly connected to one outer surface of the double rack 412 in the transverse drive mechanism 41. The connecting frame 45 is U-shaped, and one outer surface of the connecting frame 45 is fixedly connected to the outer wall surface of the mounting plate 31. One end of the double rack 412 in the longitudinal drive mechanism 4 is slidably connected to the outer wall surface of the connecting frame 45. The connecting block strengthens the connection between the transverse drive mechanism 41 and the mounting plate 31, and facilitates the movable connection between the transverse drive mechanism 41 and the longitudinal drive mechanism 4. A structure similar to the limiting rod 44 is also fixed to one end of the double rack 412 in the longitudinal drive mechanism 4, and a matching guide groove is opened on the outer wall surface of the connecting block, so that the longitudinal drive mechanism 4 can push and pull the transverse drive mechanism 41.

[0053] By setting up two sets of longitudinal and transverse drive mechanisms to drive the mounting plate 31, the mounting plate 31 can move the surrounding multiple sorting tubes 33 to the lower end of the conveyor belt 1. At the same time, the drive mechanism is simple and easy to maintain and use because it only uses two drive motors as power sources.

[0054] An installation rod is fixedly connected to the lower end of the conveyor belt 1, and a feeding frame 5 is fixedly connected to the lower end of the installation rod. A pusher 6 is fixedly connected to the lower surface of the feeding frame 5. Multiple pushers 6 are used to push the cover plate 313 in different directions, thereby facilitating the unobstructed flow of the upper end of the feeding hole.

[0055] Working principle:

[0056] Step 1: Start the conveyor belt 1 and the automatic identification station 2. Place the plastic on the surface of the conveyor belt 1 for conveying. After the automatic identification station 2 identifies the plastic, the first drive motor 42 and the second drive motor 43 run while the plastic is being conveyed.

[0057] Step 2: The drive motor drives the transmission gear 414 to rotate through the drive gear 413. The transmission rack drives the double rack 412 through the fan plate 415. The double rack 412 in the longitudinal drive mechanism 4 pushes and pulls the transverse drive mechanism 41. Then, the transverse drive mechanism 41 pushes and pulls the mounting plate 31 longitudinally. After the transverse drive mechanism 41 is started, it pushes and pulls the mounting plate 31 laterally through the double rack 412 and the connecting frame 45. When the longitudinal drive mechanism 4 and the transverse drive mechanism 41 are used together, the mounting plate 31 is tilted and pulled.

[0058] Step 3: When the mounting plate 31 moves, the selected sorting block 32 moves directly below the conveyor belt 1. The cover plate 313 above the selected sorting block 32 moves together, but is blocked by the push column 6. The cover plate 313 and the slider 310 below remain relatively stationary. The chute moves with the mounting plate 31, the cover plate 313 separates from the sorting block 32, and the top of the sorting block 32 is unobstructed. At the same time, the thrust spring 311 is squeezed by the telescopic rod 312, and the telescopic rod 312 is further driven, so that the single rack 36 and the detection gear 34 are transmitted. The detection gear 34 deflects and drives the acceleration tube 38 to deflect through the mounting strip 37. The acceleration tube 38 drives the ball 39 to rub against the inner wall of the sorting tube 33, and the ball 39 rolls.

[0059] Step four: Simultaneously, the mounting plate 31 drives the connecting rod 316 to move on the surface of the counterweight box 317 via the mounting spring 314. As the conveyor belt 1 runs, the plastic enters the sorting block 32 through the feeding frame 5 and triggers the corresponding infrared photoelectric switch 35. Then it enters the sorting tube 33, and after the friction is reduced by the ball bearing 39, it quickly slides out into the corresponding recycling box 319.

[0060] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automatic sorting device for recycled plastics, comprising a sorting conveyor belt (1), wherein an automatic identification station (2) is installed on the upper surface of one end of the conveyor belt (1), characterized in that: A sorting mechanism (3) is installed below the end of the conveyor belt (1). The sorting mechanism (3) includes a mounting plate (31). The upper surface of the mounting plate (31) is provided with a discharge hole. Multiple discharge holes are distributed in a grid pattern. Sorting blocks (32) are fixedly connected to the lower surface of multiple mounting plates (31). The upper surface of the sorting block (32) is provided with a discharge hole. The discharge hole is funnel-shaped. A sorting tube (33) is fixedly connected to the lower surface of the sorting block (32). The sorting tube (33) is L-shaped. The upper opening of the sorting tube (33) is aligned with and connected to the lower opening of the discharge hole. The upper inner wall of the sorting block (32) is provided with an installation groove. The inner wall of the installation groove is rotatably connected to a detection gear (34) through a bearing. Both the inner wall of the detection gear (34) and the upper inner wall of the sorting block (32) are equipped with infrared beam switches (35). A single rack (36) is slidably inserted into the outer wall surface of the sorting block (32). The surface of the single rack (36) is connected to the outer surface of the detection gear (34) through a toothed drive. An installation strip (37) is fixedly connected to the inner wall surface of the detection gear (34). An acceleration tube (38) is fixedly connected to the lower end of the installation strip (37). The acceleration tube (38) is located at the bend of the sorting tube (33). The material of the acceleration tube (38) is a polyurethane hose. A ball bearing (39) is rotatably connected to the surface of the acceleration tube (38). One end of the ball bearing (39) is slidably connected to the inner wall of the bend of the sorting tube (33). A drive mechanism is installed on the lower surface of the conveyor belt (1). The drive mechanism includes a longitudinal drive mechanism (4) and a transverse drive mechanism (41). Both the longitudinal drive mechanism (4) and the transverse drive mechanism (41) include a mounting plate (411), a double rack (412), a drive gear (413), a transmission gear (414), and a fan plate (415). The lower surface of the mounting plate (411) is rotatably connected to the drive gear (413) via a rotating shaft. The two ends of the lower surface of the mounting plate (411) are rotatably connected to two transmission gears (414) via rotating shafts. The outer wall surfaces of the two transmission gears (414) are connected to the outer surface of the drive gear (413). The lower surfaces of the two transmission gears (414) are fixedly connected to the upper surface of the fan plate (415). The outer wall surface of the fan plate (415) and the outer surfaces of both sides of the double rack (412) are provided with locking teeth. The double rack (412) is located between the two fan plates (415).

2. An automatic sorting device for recycled plastics according to claim 1, characterized in that: The upper surface of the mounting plate (31) has a sliding groove, and a slider (310) is slidably connected to the inner wall of the sliding groove. A thrust spring (311) is fixedly connected to the side wall of the slider (310), and the end of the thrust spring (311) is fixedly connected to the inner wall of one end of the sliding groove.

3. An automatic sorting device for recycled plastics according to claim 2, characterized in that: One of the sliders (310) has a telescopic rod (312) fixedly connected to its side wall surface. The telescopic rod (312) is located inside the thrust spring (311). The end of the telescopic rod (312) is connected and fixed to the end of the single rack (36) by a connecting block. The upper surface of the slider (310) has a cover plate (313) fixedly connected to it. The cover plate (313) is located above the mounting plate (31).

4. An automatic sorting device for recycled plastics according to claim 3, characterized in that: A mounting spring (314) is fixedly connected to the lower surface of the middle part of the mounting plate (31). A mounting base (315) is fixedly connected to the lower end of the mounting spring (314). A connecting rod (316) is fixedly connected to the lower surface of the mounting base (315). A counterweight box (317) is slidably connected to the lower end of the connecting rod (316). A movable groove is opened at the upper end of the counterweight box (317). A limit block (318) is slidably connected to the inner wall of the movable groove. The upper surface of the limit block (318) is fixedly connected to the lower end of the connecting rod (316). A recycling box (319) is installed on the outer wall surface of the counterweight box (317). Multiple recycling boxes (319) are located below multiple sorting tubes (33).

5. An automatic sorting device for recycled plastics according to claim 4, characterized in that: The upper surfaces of the two mounting plates (411) are respectively fixedly connected to a first drive motor (42) and a second drive motor (43). The output shafts of the first drive motor (42) and the second drive motor (43) are respectively connected to two drive gears (413). The upper surface of the first drive motor (42) is fixedly connected to the inner top wall of the conveyor belt (1).

6. An automatic sorting device for recycled plastics according to claim 5, characterized in that: A limiting rod (44) is fixedly connected to the upper surface of the second drive motor (43). The cross-section of the limiting rod (44) is T-shaped. A guide groove is provided on the inner top wall of the conveyor belt (1). The inner wall of the guide groove is slidably connected to the upper outer surface of the limiting rod (44).

7. An automatic sorting device for recycled plastics according to claim 6, characterized in that: In the lateral drive mechanism (41), a connecting frame (45) is fixedly connected to one side of the outer surface of the double rack (412). The connecting frame (45) is U-shaped. One side of the outer surface of the connecting frame (45) is fixedly connected to the outer wall surface of the mounting plate (31). One end of the double rack (412) in the longitudinal drive mechanism (4) is slidably connected to the outer wall surface of the connecting frame (45).

8. An automatic sorting device for recycled plastics according to claim 7, characterized in that: An installation rod is fixedly connected to the lower surface of the end of the conveyor belt (1), a feeding frame (5) is fixedly connected to the lower surface of the installation rod, and a pusher (6) is fixedly connected to the lower surface of the feeding frame (5).

Images