Tilting and sorting device, sorting method thereof and tilting and sorting system

Abstract

The invention discloses a tray dumping and sorting device, a sorting method thereof and a tray dumping and sorting system.The tray dumping and sorting device comprises a rail and a set of tray dumping and sorting assemblies moving along the rail, the rail comprises an inner rail and an outer rail, each tray dumping and sorting assembly comprises a frame and a base frame arranged on the frame, a tray dumping assembly is arranged on the base frame, and the tray dumping assemblies are arranged on the inner rail and the outer rail. An inner protective cover is arranged on the inner rail, and an outer protective cover is arranged on the outer rail; the inner protective cover and the outer protective cover do not interfere with overturning and inclining of the tray overturning assembly. The base frame is provided with a shielding plate arranged on the periphery of the base frame in a surrounding mode, the shielding plate does not interfere with overturning and inclining of the tray overturning assembly, and the shielding plate is higher than the inner protective cover and the outer protective cover and is close to the upper side edge of the inner protective cover and the upper side edge of the outer protective cover. The two sides of the shielding plate extend to be close to the upper side edges of the inner protective cover and the outer protective cover or extend to the outer sides of the upper side edges of the inner protective cover and the outer protective cover. Even if goods fall off from the tray dumping and sorting assemblies, the falling goods can slide off from the inner protective cover and the outer protective cover or be blocked on the shielding plate between the two tray dumping and sorting assemblies and cannot enter the space between the inner rail and the outer rail, and the risk of piece clamping is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the field of sorting equipment, in particular to a tray-turning sorting device, a sorting method thereof and a tray-turning sorting system. Background Art

[0002] Patent document with application publication number US5054601A discloses a usable tray tilting sorting machine.

[0003] The tray sorting assembly in the tray sorting machine moves along the track, and the tray of the tray sorting assembly needs to be tilted left and right for sorting, so there needs to be a certain gap between the tray and the track. At the same time, after the tray is tilted, it needs to pass through the reset component in the predetermined position to return to the upright state. Therefore, before the tray is reset, there is a risk of goods falling into the internal parts of the equipment. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems existing in the prior art and to provide a tray turning sorting device, a sorting method thereof and a tray turning sorting system.

[0005] The purpose of the present invention is achieved through the following technical solutions: The tilting tray sorting device comprises a track and a group of tilting tray sorting components moving along the track, wherein the track comprises an inner track and an outer track, the tilting tray sorting component comprises a frame and a base frame arranged on the frame, and the tilting tray component is arranged on the base frame. An inner guard is provided on the inner rail, and an outer guard is provided on the outer rail; the inner guard and the outer guard do not interfere with the turning and tilting of the flap assembly; The base frame is provided with a shielding plate surrounding the outer periphery thereof, the shielding plate does not interfere with the turning and tilting of the flap assembly and shields between the upper side edges of the inner shield and the outer shield.

[0006] Preferably, the shielding plate includes an upper flat plate and a lower flat plate distributed axially along the axis of rotation about which the flip tray assembly rotates, and the upper flat plate of the shielding plate of each flip tray sorting assembly is arranged to partially overlap with the lower flat plate of the shielding plate of another flip tray sorting assembly to which it is connected.

[0007] Preferably, the inner shield and the outer shield include sliding slopes for allowing cargo to fall therefrom.

[0008] Preferably, the tray-turning sorting device further comprises a distance measuring sensor for detecting the sliding position of the goods sliding down from the straight extension sections of the inner and outer protective covers.

[0009] Preferably, a detection sensor is provided at a predetermined position of the track and is located upstream of the reset assembly at the track for detecting whether there are goods on the shielding plate between adjacent tipping tray sorting assemblies.

[0010] Preferably, a processing device for causing the goods to fall from the shielding plate is provided at the track and is located downstream of the detection sensor.

[0011] Preferably, the processing device is arranged at the upstream end of the turning section of the track.

[0012] A tray-turning sorting system comprises any of the above-described tray-turning sorting devices.

[0013] The sorting method of the tilting tray sorting device comprises the following steps: During the movement of the tray-turning sorting assembly along the track, a signal of the distance measuring sensor is acquired, and when it is determined that the distance measuring sensor has measured a distance, the falling position of the goods is determined according to the distance measured by the distance measuring sensor.

[0014] The sorting method of the tilting tray sorting device comprises the following steps: During the movement of the tilting tray sorting assembly along the track, a detection sensor is used to detect whether there are goods on the shielding plate between adjacent tilting tray sorting assemblies; When it is determined that there are goods on the shielding plate between adjacent tilt-tray sorting assemblies, the movement of the tilt-tray sorting assemblies is stopped and an alarm is sounded.

[0015] The sorting method of the tilting tray sorting device comprises the following steps: When the tilting tray sorting assembly moves along the track, a detection sensor is used to detect whether there are goods on the shielding plate between two adjacent tilting tray sorting assemblies; When it is determined that there are goods on the shielding plate between two adjacent tilting tray sorting assemblies, and when it is determined that the goods on the shielding plate are moved to the processing device, the processing device is started to make the goods fall from the shielding plate.

[0016] The advantages of the technical solution of the present invention are mainly reflected in: The present invention arranges a shielding plate on the flip tray sorting assembly to cooperate with the inner guard cover and the outer guard cover on the inner rail and the outer rail to jointly shield the gap between the inner rail and the outer rail. Therefore, even if there is a situation where goods fall from the flip tray sorting assembly, the fallen goods can slide off the inner guard cover and the outer guard cover or be blocked on the shielding plate between the two flip tray sorting assemblies without entering between the inner rail and the outer rail, thereby effectively reducing the risk of jamming.

[0017] The present invention can timely detect whether there are goods on the shielding plate by setting a detection component, thereby issuing an alarm or processing through a processing device, effectively preventing the goods on the shielding plate from being crushed when the flip tray sorting component is sorting or resetting, or affecting the sorting of the flip tray sorting component.

[0018] The present invention arranges the processing device upstream of the turning section, and can effectively process the cargo on the shielding plate in time when it is found, so as to prevent the cargo from sliding off the shielding plate at the turning section and affecting the cargo safety and subsequent processing.

[0019] The present invention can effectively detect the sliding position of the goods sliding down from the inner and outer protective covers by arranging the distance measuring sensors, and can accurately determine the grid opening into which the sliding goods enter, so as to specifically remind manual processing to ensure the accuracy of sorting.

[0020] The present invention enables the ranging sensor to determine the processing result of the processing device by designing the positions of the ranging sensor and the processing device, so that timely feedback can be given to the situation that the processing device fails to effectively process, which not only expands the role of the ranging sensor, but also helps to improve the reliability of processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 1 is a top view of the tilting tray sorting device of the present invention, in which only part of the tilting tray sorting assembly and the inner and outer protective covers are shown; Figure 2 is a partial cross-sectional view of the tilting tray sorting device of the present invention; Figure 3 yes Figure 2 A partial enlarged view of the Figure 4 is a three-dimensional diagram of the tilting tray sorting assembly of the present invention; Figure 5 is a side view of the tilting tray sorting assembly of the present invention; Figure 6 is a schematic diagram of goods on the shielding plate between the tilting tray sorting components of the present invention; Figure 7 It is a schematic diagram of the positional relationship between the tilting tray sorting assembly of the present invention and the detection sensor when the tilting tray sorting assembly is tilted; Figure 8 3 is a top view of the tilt tray sorting system of the present invention, in which only part of the tilt tray sorting components and parts of the inner and outer shields are shown; DETAILED DESCRIPTION

[0022] The purpose, advantages and features of the present invention will be illustrated and explained by the non-limiting description of the following preferred embodiments. These embodiments are only typical examples of the application of the technical solution of the present invention, and any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection claimed by the present invention.

[0023] In the description of the scheme, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] Example 1 The tilting tray sorting device disclosed by the present invention is described below in conjunction with the accompanying drawings. Figure 1 As shown, it includes a track 100 and a group of tilting tray sorting components 200 moving along the track 100.

[0025] As attached Figure 1 -Attached Figure 3 As shown, the track 100 includes an inner rail 110 and an outer rail 120 that are concentrically arranged, and the inner rail 110 and the outer rail 120 are arranged on a track bracket 130. The shapes of the inner rail 110 and the outer rail 120 can be designed as needed, for example, the inner rail 110 and the outer rail 120 are concentric waist-shaped or rounded rectangular shapes, etc., which are not limited here. In addition, the inner rail 110 and the outer rail 120 include a wheel groove 140 with a C-shaped cross-section and used for the running wheels of the frame to run, and a baffle 150 extending downward therefrom is vertically arranged on the inner side of the bottom plate of the wheel groove 140 for the guide wheels on the frame to run.

[0026] As attached Figure 1 , Attachment Figure 3 As shown, an inner guard 160 is arranged above the inner rail 110, and an outer guard 170 is arranged on the outer rail 120. The inner guard and the outer guard are fixed to the profile 180 on the outer side of the rail through a connecting piece 190, and the profile is fixed to the column on the outer side of the rail bracket; the inner guard 160 and the outer guard 170 do not interfere with the turning and tilting of the turning plate assembly 230 of the turning plate sorting assembly 200; the inner guard 160 and the outer guard 170 are symmetrically arranged, and the The inner shield 160 and the outer shield 170 both include a vertical plate 101, and an inclined plate 102 connected to the upper part of the vertical plate 101 and inclined toward the inner and upper part of the vertical plate 101. The outer surface of the inclined plate 102 is a sliding slope for allowing the goods 300 to fall from it. At the same time, the upper side of the inclined plate 102 can also be connected to a bending plate 103 inclined toward its inner side and obliquely upward. The vertical plate 101, the inclined plate 102 and the bending plate 103 can be stamped from plates.

[0027] The specific structure of the tray sorting assembly 200 may refer to the structure disclosed in the patent document with application publication number CN118618814A.

[0028] Specifically, as attached Figure 4 As shown, the tilting tray sorting assembly 200 includes a frame 210 that moves along the inner rail 110 and the outer rail 120 and a base frame 220 disposed on the frame 210, and a tilting tray assembly 230 that can rotate relative to the base frame 220 is disposed on the base frame 220.

[0029] The difference from the existing tilting tray sorting assembly is that: in the present invention, as shown in the attached Figure 3 -Attached Figure 5 As shown, a shielding plate 240 is provided on the base frame 220 and is arranged around the outer circumference thereof, and the shielding plate 240 does not interfere with the flipping and tilting of the flap assembly 230 and is shielded between the upper sides of the inner and outer shields 160 and 170, that is, the shielding plate 240 is higher than the inner and outer shields 160 and 170 but close to the upper sides of the inner and outer shields 160 and 170, and at the same time, both sides of the shielding plate 240 extend close to the upper sides of the inner and outer shields 160 and 170 or extend to the outside of the upper sides of the inner and outer shields 160 and 170.

[0030] As attached Figure 4 , Attachment Figure 5 As shown, the shielding plate 240 is connected to the base frame 220 through the bracket 250 located outside the two side plates 221 of the base frame 220, and the two ends of the shielding plate 240 extend to the outside of the two sides of the tray 231 of the flip assembly. The shielding plate 240 includes an upper plate 241 and a lower plate 242 distributed along the axial direction of the rotating shaft around which the flip assembly 230 rotates. The shielding plate 240 can be a plate member machined, and the length of the lower plate 242 is equivalent to the distance that the tray 231 of the flip assembly 230 extends along the axial direction of the rotating shaft, and the lower plate 242 is provided with an avoidance hole 243 to avoid interference with the locking assembly 270 that cooperates with the limit rod 260 and follows the rotation of the flip assembly 230. When the flip assembly 230 is in a straightened state, the lower plate 242 is at the same height as the top of the flip driving wheels 272 on both sides of the locking frame 271 of the locking assembly 270. The distance that the upper plate 241 extends along the axial direction of the rotating shaft is significantly smaller than the length of the lower plate 242 .

[0031] As attached Figure 6As shown, when a plurality of the flip tray sorting assemblies 200 are connected in sequence, the upper flat plate 241 of the shielding plate 240 of each flip tray sorting assembly 200 and the lower flat plate 242 of the shielding plate 240 of another flip tray sorting assembly 200 connected thereto are partially overlapped, so that the shielding plate 240 can effectively cover the gap between the two flip tray sorting assemblies 200, and at the same time, when the flip tray sorting assembly 200 turns at the turning section of the track 100, it can effectively provide shielding and avoid affecting the turning.

[0032] As attached Figure 4 As shown, in order to reduce the risk of goods falling from the other two long sides of the pallet except the two sorting sides, wing plates 233 are respectively provided on the two long sides. When the pallet is straightened, the wing plates 233 are horizontally arranged, and the outer sides of the wing plates 233 are toothed.

[0033] When the cargo 300 falls from the overturning assembly 230 onto the shielding plate 240, the cargo 300 can usually slide down from the outer shield 170 or the inner shield 160, and then slide into the sorting grids on both sides of the track. If the cargo 300 sliding off the outer shield 170 and the inner shield 160 is not detected, the problem of misclassification will occur. Therefore, in order to timely detect the cargo 300 sliding off the outer shield 170 and the inner shield 160 and determine the sorting grid where the cargo 300 slides to as much as possible, as shown in the attached figure Figure 3As shown, the tray-turning sorting device further includes a distance sensor 400 for detecting the sliding position of the goods 300 sliding down from the straight extension sections of the inner shield 160 and the outer shield 170. The distance sensor 400 is, for example, a laser distance sensor, and its specific measurement range can be determined according to the length of the straight extension sections of the inner shield 160 and the outer shield 170, which is not limited here. At the same time, there are multiple distance sensors 400, and the number thereof is the same as the number of the straight extension sections of the inner shield 160 and the outer shield 170. For example, in a waist-shaped track, the inner shield 160 and the outer shield 170 respectively have two straight extension sections and turning sections connected at both ends of the two straight extension sections, so that there are a total of four straight extension sections, and four distance sensors 400 are correspondingly arranged, and each distance sensor 400 is located at the end of a straight extension section and at the outer side of the inclined plate 102 of the straight extension section. At the same time, the detection sensor 400 is located below the inclined sorting tray 231 so as not to affect the movement of the inclined tray. When no cargo 300 slides off the inner protective cover 160 and the outer protective cover 170, the detection result of the distance measuring sensor 400 remains unchanged. When cargo 300 slides off the inner protective cover 160 or the outer protective cover 170, the distance measured by the distance measuring sensor 400 changes. On the one hand, it can be determined that cargo 300 slides off. On the other hand, the sorting grid where cargo 300 may fall can be determined based on the real-time measured distance and the distance between each sorting grid and the distance measuring sensor 400, so that the sorting grid where cargo 300 may fall can be illuminated for indication and / or communication. The sound and light alarm reminds manual abnormality investigation, and when manual abnormality investigation is carried out, the working status of these sorting grids can be switched to locked and impossible to sort. At this time, the flip tray sorting components 200 where the goods 300 that need to be sorted to these sorting grids are located stop sorting the goods 300 to these sorting grids until the abnormality is eliminated and a manual instruction to unlock the sorting grids is issued, so that the working status of these sorting grids is switched to unlocked and can be sorted. Only then can the flip tray sorting components 200 continue to sort the goods 300 that need to be sorted to these sorting grids into the corresponding sorting grids.

[0034] Of course, when the cargo 300 falls from the overturning assembly 230 onto the shielding plate 240 without sliding off the inner shield and the outer shield, as shown in the attached Figure 6 As shown, the goods 300 may stay on the shielding plate 240 between the adjacent tilting tray sorting components 200. If such goods 300 are not detected, when the tilted tilting tray sorting component 200 moves to the reset component 500 to restore the alignment, or when the tilting tray sorting component 200 where the fallen goods 300 originally were located starts sorting, it is easy for the goods 300 to interfere with the tray 231 of the tilting tray component 230. Therefore, it is necessary to detect the goods 300 on the shielding plate 240 in time. Correspondingly, as shown in the attached figure Figure 3 , Attachment Figure 6 As shown, a detection sensor 600 for detecting whether there is a cargo 300 on the shielding plate 240 between adjacent tip-up tray sorting assemblies 200 is provided at a predetermined position of the track 100 and is located upstream of the reset assembly 500 at the track 100. The detection sensor 600 is, for example, a known through-beam sensor or proximity switch or mirror reflection sensor, etc., which is specifically provided as required. Meanwhile, the specific position and number of the detection sensor 600 can be designed as required. For example, a detection sensor 600 located above and close to the upper plate 241 of the shielding plate 240 can be provided at intervals, and the detection sensor 600 is located below the tilted tray 231, thereby avoiding interference of the tip-up tray assembly flipping on the detection.

[0035] Further, in order to avoid the interference of the flip rack 232 of the flip assembly 230 of the flip sorting trolley, the position of the tray sorting trolley can be determined in real time by a known trolley position tracking method to determine the real-time position of the flip rack 232 on the tray sorting trolley, so as to determine whether it is the flip rack 232 or the gap between two flip racks 232 that passes through each detection sensor 600. The corresponding technology is a known technology and is not limited here. When it is determined that the gap between the two flip racks 232 passes through one of the detection sensors 600, the detection sensor 600 is continuously triggered, and it can be determined that there are goods on the shielding plate 240 corresponding to the gap. And when any of the detection sensors 600 detects that there are goods on the shielding plate 240, the movement of the flip tray sorting assembly 200 along the track 100 can be stopped. After the flip tray sorting assembly 200 stops, the goods on the shielding plate 240 are manually processed and then resumed.

[0036] Better yet, in order to avoid the loss of efficiency, increase in labor processing costs and energy consumption caused by stopping the sorting loop composed of the flip tray sorting components for manual processing, as shown in the attached Figure 1 , Attachment Figure 2As shown, a processing device 700 for making the goods 300 fall from the shielding plate 240 can be provided at the track 100 and located downstream of the detection sensor 600. The processing device 700 is, for example, a jet device capable of blowing air to the goods 300 on the shielding plate 240. The jet device can blow high-speed airflow to the goods 300, thereby blowing the goods 300 off the shielding plate 240. Alternatively, the processing device 700 is a pushing device, which can be an electric push rod, and a soft pad can be provided at the front end of the telescopic rod of the electric push rod to reduce the impact during pushing. When it is determined that there is a goods 300 on the shielding plate 240 and the shielding plate 240 where the goods 300 are located moves to the pushing device, the telescopic rod of the electric push rod is quickly extended and then reset. When the telescopic rod is extended, the soft pad at the front end of the telescopic rod pushes the goods 300 off the shielding plate 240.

[0037] Furthermore, when the push device is used for processing, the moving speed of the tilting tray sorting assembly along the track can be appropriately slowed down to avoid interference between the action of the push device and the movement of the tilting tray sorting assembly, and after processing, the tilting tray sorting assembly is restored to a normal moving speed. Of course, if the moving speed of the tilting tray sorting assembly itself is relatively slow, it does not need to be slowed down during processing.

[0038] In addition, an abnormal processing grid 710 is provided on a side of the track 100 opposite to the processing device 700 to receive the goods 300 blown down or pushed down by the processing device 700 .

[0039] The position of the processing device 700 can be designed as required. Figure 1 As shown, the processing device 700 is arranged at the upstream end of the turning section of the track 100. The reason for setting it at this position is that the goods 300 on the shielding plate 240 will slide off the shielding plate 240 due to the centrifugal force when they move to the turning section of the track, and there is usually no sorting grid outside the turning section, which means there is a risk that the goods 300 will fall off the tilting sorting device and be damaged. Even if the goods 300 are not damaged, there is still a problem that the goods 300 are scattered everywhere, which is not conducive to centralized collection. Therefore, before the goods 300 on the shielding plate 240 move to the turning section, processing by the processing device can effectively avoid the problem of the goods sliding off the shielding plate in the turning section.

[0040] Of course, the number of the processing devices 700 may also be configured according to the length of each straight line segment of the tray-turning sorting device, and even one processing device 700 may be configured downstream of each detection sensor 600 .

[0041] Furthermore, the distance measuring sensor 400 can be used to determine whether the goods on the corresponding shielding plate 240 have fallen off the shielding plate 240 after the processing device 700 is activated. Specifically, it is determined based on the signals of the distance measuring sensors distributed on both sides of the tilting tray sorting assembly 200 with the processing device 700. When the processing device 700 is processing, the distance measuring sensor 400 on the other side of the track determines whether the measured distance changes and whether the distance value after the change is within the corresponding range, which is the theoretical distance range between the goods processed by the processing device 700 and the distance measuring sensor when they slide off. If so, it is determined that the goods 300 have fallen off the shielding plate, otherwise it is determined that the goods 300 are still on the shielding plate 240, and the tilting tray sorting device can be controlled to stop and alarm. Of course, in another embodiment, a verification sensor located downstream of the processing device 700 may be provided at the track 100, and the verification sensor may be located upstream of the reset component 500 provided at the track 100, so as to determine whether there is still cargo 300 on the shielding plate 240 after processing by the processing device 700 through the verification sensor.

[0042] Example 2 This embodiment discloses a tray sorting system, as shown in the attached Figure 8 As shown, it includes any of the above-mentioned tray sorting devices. As in the prior art, the tray sorting system also includes an upper bag area 800 located on the side of the track 100 and a grid area 900 located on both sides of the track 100. A code scanning device 001 is provided downstream of the upper bag area 800 and upstream of the grid area 900. Their specific structures are the same as in the prior art and are not described here.

[0043] Example 3 This embodiment discloses a sorting method of a tilting tray sorting device, comprising the following steps: When the tray-turning sorting assembly 200 moves along the track 100 , a signal of the distance measuring sensor 400 is acquired, and the falling position of the goods 300 is determined according to the distance measured by the distance measuring sensor 400 .

[0044] Example 4 This embodiment discloses a sorting method of a tilting tray sorting device, comprising the following steps: When the tilting tray sorting assembly 200 moves along the track 100, the detection sensor 600 detects whether there is cargo 300 on the shielding plate 240 between adjacent tilting tray sorting assemblies 200; When it is determined that goods 300 exist on the shielding plate 240 between adjacent turn-over tray sorting assemblies 200, the movement of the turn-over tray sorting assemblies 200 is stopped and an alarm is issued.

[0045] Example 5 This embodiment discloses a sorting method of a tilting tray sorting device, comprising the following steps: When the tilting tray sorting assembly 200 moves along the track 100, the detection sensor 600 detects whether there is cargo 300 on the shielding plate 240 between two adjacent tilting tray sorting assemblies 200; When it is determined that there are goods 300 on the shielding plate 240 between two adjacent tilting tray sorting assemblies 200, and when it is determined that the goods 300 on the shielding plate 240 are moved to the processing device 700, the processing device 700 is started to make the goods 300 fall from the shielding plate 240.

[0046] There are many implementation methods of the present invention, and all technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A tray sorting device, comprising a track and a set of tray sorting components moving along the track, wherein the track comprises an inner track and an outer track, the tray sorting components comprises a frame and a base frame arranged on the frame, and a tray sorting component is arranged on the base frame, characterized in that: An inner guard is provided on the inner rail, and an outer guard is provided on the outer rail; the inner guard and the outer guard do not interfere with the turning and tilting of the flap assembly; The base frame is provided with a shielding plate surrounding the outer periphery thereof, the shielding plate does not interfere with the turning and tilting of the flap assembly and shields between the upper side edges of the inner shield and the outer shield.

2. The tray sorting device according to claim 1, characterized in that: The shielding plate includes an upper flat plate and a lower flat plate distributed axially along the rotating axis around which the flip tray assembly rotates, and the upper flat plate of the shielding plate of each flip tray sorting assembly is partially overlapped with the lower flat plate of the shielding plate of another flip tray sorting assembly connected to it.

3. The tray sorting device according to claim 1, characterized in that: The inner and outer shields include sliding ramps for cargo to fall therefrom.

4. The tray sorting device according to claim 3, characterized in that: Also included is a distance measuring sensor for detecting the sliding position of the cargo sliding down from the straight extensions of the inner and outer shields.

5. The tray sorting device according to claim 1, characterized in that: A detection sensor is provided at a predetermined position of the track and is located upstream of a reset assembly at the track and is used to detect whether there is cargo on a shielding plate between adjacent tilting tray sorting assemblies.

6. The tray sorting device according to claim 5, characterized in that: The track is provided with a processing device located downstream of the detection sensor for making the goods fall from the shielding plate.

7. The tilting tray sorting device according to claim 6, characterized in that: The processing device is arranged at the upstream end of the turning section of the track.

8. The tray sorting system is characterized by: It comprises a tray-turning sorting device as described in any one of claims 1-7.

9. The sorting method of the tilting tray sorting device according to claim 4, characterized in that: The steps include: During the movement of the tilting tray sorting assembly along the track, a signal of the distance measuring sensor is acquired, and when it is determined that the distance measuring sensor has measured a distance, the falling position of the goods is determined according to the distance measured by the distance measuring sensor.

10. The sorting method according to any one of claims 5 to 7, characterized in that: The steps include: During the movement of the tilting tray sorting assembly along the track, a detection sensor is used to detect whether there are goods on the shielding plate between adjacent tilting tray sorting assemblies; When it is determined that there are goods on the shielding plate between adjacent tilt-tray sorting assemblies, the movement of the tilt-tray sorting assemblies is stopped and an alarm is sounded.

11. The sorting method of the tilting tray sorting device according to any one of claims 6-7, characterized in that: The steps include: When the tilting tray sorting assembly moves along the track, a detection sensor is used to detect whether there are goods on the shielding plate between two adjacent tilting tray sorting assemblies; When it is determined that there are goods on the shielding plate between two adjacent tilting tray sorting assemblies, and when it is determined that the goods on the shielding plate are moved to the processing device, the processing device is started to make the goods fall from the shielding plate.

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