3D sorting system and its sorting method

Abstract

This invention discloses a three-dimensional sorting system and its sorting method. The three-dimensional sorting system employs two types of sorting assemblies. The first type uses multi-layered, narrow-width receiving boxes, effectively meeting the sorting requirements of small-sized goods. Once the receiving boxes are full, they can be easily transferred and empty boxes can be replaced, facilitating operation. The second type uses wider chutes, effectively meeting the sorting requirements of large-sized goods. Different sized sorting assemblies are configured for goods of different sizes, allowing for a better fit between the assemblies and the goods compared to assemblies of the same width, while also increasing the number of assemblies. The structural design of each moving sorting assembly of the cross-belt sorter effectively improves the synchronicity of movement on both sides of the conveyor, preventing goods from falling off the conveyor due to asynchronous movement. Regardless of the height the conveyor reaches, both sides of the conveyor receive stable support.

Description

Technical Field

[0001] This invention relates to the field of sorting equipment, and in particular to a three-dimensional sorting system and sorting method thereof. Background Technology

[0002] Cross-belt sorting systems are commonly used sorting equipment in logistics sorting.

[0003] The invention patent application with publication number CN114890065A discloses a commonly used cross-belt sorting system.

[0004] In this system, there is only one layer of sorting slots, which greatly limits the number of sorting slots and is not conducive to the use of multiple sorting points in small sorting stations.

[0005] The invention patent application with publication number CN111014052A discloses a cross-belt sorting system with multi-layer sorting compartments.

[0006] In this system, although the sorting compartments can be set up as multi-layered compartments, all compartments are usually set to a fixed width. This means that the compartment width usually needs to be set relatively large to meet the sorting needs of goods of various sizes. This limits the number of compartments, and this structure is not convenient for unloading goods from the compartments after they are full. Summary of the Invention

[0007] The purpose of this invention is to solve the above-mentioned problems existing in the prior art and to provide a three-dimensional sorting system and sorting method thereof.

[0008] The objective of this invention is achieved through the following technical solution: The automated sorting system includes: A cross-belt sorting machine includes an upper track and a lower track with their axes extending vertically. A set of moving sorting components is movably arranged between the upper and lower tracks. The upper and lower parts of adjacent moving sorting components are hinged. Each moving sorting component includes a rectangular frame. Moving seats are respectively arranged on the two side columns of the frame and can move up and down along the frame. The two moving seats are driven synchronously to reciprocate along the vertical direction by a drive mechanism including a power source. The two moving seats are symmetrically connected at the middle position on both sides of a conveyor. A package feeding station is provided on the outside of the cross-belt sorter; The cross-belt sorter is provided with at least two types of grid components on its outer side; The first type of grid assembly includes a shelf on which multiple layers of receiving boxes are detachably disposed, wherein the top of a first side panel of the receiving boxes facing the cross-belt sorter is lower than the top of a second side panel opposite to the first side panel. The second type of grid assembly includes at least one collection chute, the width of which is greater than the width of the receiving box.

[0009] Preferably, the upper track includes a wheel groove on the side, and the mobile sorting assembly is provided with an upper traveling wheel, the axis of which extends vertically and is tumbled in the wheel groove.

[0010] Preferably, there are two upper traveling wheels, each rotatably mounted on a longitudinal pin at the top of the frame. The longitudinal pins are screwed onto the top plate of the frame. A lower reinforcing member and an upper reinforcing member located below the upper traveling wheels and connected to the top plate are also connected between the two longitudinal pins. Each longitudinal pin is also connected to an upper joint bearing located between the reinforcing member and the lower reinforcing member. The upper joint bearing on one side of any movable sorting component is connected to the corresponding upper joint bearing on the adjacent movable sorting component via a connecting rod.

[0011] Preferably, the rectangular frame is mounted on the traveling frame, a sliding contact line current collector is provided on the side of the traveling frame, and a power supply rail matching the sliding contact line current collector is provided on the inner side wall of the outer rail of the lower track.

[0012] Preferably, the driving mechanism includes a motor located outside the frame, the motor being connected to and driving a first rotating shaft to rotate, the first rotating shaft being coaxially connected to a second rotating shaft via a transmission shaft, a driving wheel located at the bottom of the two columns being connected to the first rotating shaft and the second rotating shaft respectively, each driving wheel being connected to a driven wheel located above the column via a transmission belt, the two transmission belts being connected to a movable seat respectively, the driven wheels being rotatably mounted on the top of the two columns, and the transmission belts being located inside the columns.

[0013] Preferably, the bearings containing the first and second rotating shafts are connected to the lower parts of the two columns via a lower connecting groove, and the drive shaft is located within the lower connecting groove.

[0014] Preferably, the column includes a first chamber and a second chamber that are separated from each other, the two longitudinally extending belt segments of the synchronous belt are respectively located in the first chamber and the second chamber, the side of the column has an opening communicating with the second chamber, the movable seat includes a sliding block slidably disposed in the second chamber, the sliding block is connected to a mounting frame located on the outside of the column, and the mounting frame is connected to the conveyor.

[0015] Preferably, a third type of grid assembly is provided on the outer side of the cross-belt sorter, the third type of grid assembly including at least one layer of non-powered roller trough.

[0016] The sorting method according to any of the above-described three-dimensional sorting systems includes the following steps: S1, during the process of conveying a cargo placed on the package feeding station to the cross belt sorting machine, the size measurement device obtains the size data of the cargo and the code reading device obtains the target position of the cargo to be sorted after reading the code. S2, determine whether the location where the goods should be sorted according to the size data of the goods and the target location where the goods are to be sorted both belong to the same type of grid component; S3, if so, when the goods enter a mobile sorting component, the mobile sorting component moves the goods to the height corresponding to the target position to which they are to be sorted. When the mobile sorting component containing the goods moves to the target position to which the goods are to be sorted, the conveyor containing the goods is started to sort them. S4, if not, then when the goods enter a mobile sorting component, control the mobile sorting component to sort the goods into an abnormal compartment.

[0017] Preferably, in step S1, the weight data of the goods weighed by the weighing conveyor is also obtained, and in step S2, it is determined whether the location where the goods should be sorted, determined based on the size data and weight data of the goods, and the target location where the goods are to be sorted both belong to the same type of grid component.

[0018] The advantages of the technical solution of this invention are mainly reflected in: The cross-belt sorter of the present invention has two types of grid components on its outer side. The first type of grid component uses multiple layers of narrow receiving boxes to receive materials, which can effectively meet the sorting requirements of small-sized goods. It is convenient to add more sorting points without increasing the horizontal space. Moreover, the receiving boxes can be easily transferred after being filled with goods and the empty receiving boxes can be replaced, which is convenient to operate and helps to improve work efficiency. The second type of grid component uses a wider chute, which can effectively meet the sorting of large-sized goods. Different sizes of grid components are configured for goods of different sizes. Compared with grids of the same width, the grid components can fit the size of the goods better, and the number of grids can be increased.

[0019] This invention further incorporates the design of a cross-belt sorting machine, enabling the conveyor sides of each mobile sorting component to move synchronously by a drive mechanism including a power source. This effectively improves the synchronicity of the movement on both sides of the conveyor, thereby improving the stability and smoothness of the conveyor's vertical movement. It avoids the problem of goods falling off the conveyor due to asynchronous movement on both sides. At the same time, the mobile sorting component is connected between the upper and lower rails, ensuring stable support on both sides of the conveyor regardless of its height. This prevents significant vibrations during the movement of the mobile sorting component when the conveyor is at a high position, thus avoiding impacts on the stability of the conveying process.

[0020] The drive mechanism of this invention is driven by a motor, which reduces costs. Furthermore, by placing the drive wheel and driven wheel at both ends of the column and embedding the transmission belt within the column, the integration of the drive mechanism can be effectively improved, and the space occupied can be reduced.

[0021] The connection structure between the upper traveling wheel and the upper joint bearing of the present invention can be effectively assembled with a simple structure, and the overall structure has better stability and longer service life.

[0022] The present invention further incorporates the measurement of the weight of the goods, thereby determining whether the sorting compartments are properly matched based on the weight of the goods, thus ensuring that goods of various weights can be sorted into the appropriate compartments. Attached Figure Description

[0023] Figure 1 This is a top view of the three-dimensional sorting system of the present invention; Figure 2 This is a perspective view of the three-dimensional sorting system of the present invention; Figure 3 This is a partial cross-sectional view of the three-dimensional sorting system of the present invention; Figure 4 This is a perspective view of the connection of some of the mobile sorting components of the present invention, in which the conveyor is omitted from the view of one of the mobile sorting components; Figure 5 This is a perspective view of the mobile sorting component of the present invention without the conveyor. Figure 6 This is a perspective view of the walking frame of the present invention; Figure 7 yes Figure 5 A sectional view; Figure 8 yes Figure 7 Enlarged view of the elliptical region in the image; Figure 9 yes Figure 7 Enlarged view of the lower half of the image; Figure 10 This is a partial cross-sectional view of the column and the movable seat slidably disposed thereon of the present invention; Figure 11 This is a cross-sectional view of the conveyor of the present invention; Figure 12 This is a perspective view of the first type of grid assembly of the present invention, with part of the receiving box omitted from the figure; Figure 13 This is a cross-sectional view of the second type of grid assembly of the present invention; Figure 14 This is a perspective view of one side of the second type of grid assembly of the present invention; Figure 15 This is a top view of the three-dimensional sorting system of the present invention, including a third type of grid component; Figure 16 This is a side view of the third type of grid assembly of the present invention; Figure 17 This is a top view of the third grid assembly of the present invention. Detailed Implementation

[0024] The objectives, advantages, and features of this invention will be illustrated and explained through the following non-limiting description of preferred embodiments. These embodiments are merely typical examples of applying the technical solutions of this invention, and all technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of protection claimed by this invention.

[0025] In the description of the solution, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying 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, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] The three-dimensional sorting system disclosed in this invention will be described below with reference to the accompanying drawings, as shown in the attached drawings. Figure 1 - Appendix Figure 3 As shown, it includes a cross-belt sorter 100, which includes an upper rail 101 and a lower rail 102 with their axes extending in the vertical direction. A set of moving sorting components 103 is movably arranged between the upper rail 101 and the lower rail 102, and the upper and lower parts of adjacent moving sorting components 103 are hinged respectively.

[0027] As attached Figure 3 As shown, the upper track 101 and the lower track 102 are fixed on the support frame 109. The upper track 101 is a closed annular track. The specific shape of the upper track 101 can be designed as needed. Typically, the upper track 101 is designed as an oblong shape. In order to effectively connect the mobile sorting assembly 103, the upper track 101 includes a C-shaped upper wheel groove with the groove opening facing downward. The mobile sorting assembly 103 is provided with upper traveling wheels 110. The axis of the upper traveling wheels 110 extends vertically and rolls against the inner walls on both sides of the upper wheel groove.

[0028] The lower track 102 can be a closed track with the same shape as the upper track 101 and directly opposite it in the vertical direction. Preferably, this is to provide better support and stability to the lower end of the mobile sorting assembly 103.

[0029] As attached Figure 3 As shown, the lower track 102 includes an inner track 111 and an outer track 112 concentrically and at the same height on a set of C-shaped support plates. The inner track 111 and outer track 112 each have C-shaped lower wheel grooves, with the groove openings facing each other. Two lower traveling wheels 113 are disposed below the moving sorting assembly 103, and these two wheels roll on the base plates 114 of the lower wheel grooves of the inner track 111 and outer track 112, respectively. Meanwhile, the upper track is located above the midpoint between the inner and outer tracks 112, meaning the distance from the upper track to both the inner and outer tracks is the same. This allows the moving sorting assembly 103 to maintain a more stable alignment.

[0030] For ease of processing and assembly, the inner rail 111 and outer rail 112 are each assembled sequentially from multiple rail segments. The mating ends of adjacent rail segments are connected by U-shaped connectors located on their outer sides, with the openings of the U-shaped connectors facing outwards from the rail segments. To ensure the stability of the connection between adjacent rail segments, each U-shaped connector is connected to a limiting block. The bottom of the limiting block has a slot that engages with a limiting plate on the base. The limiting plate is perpendicular to the rail segment, thus preventing the bolts connecting the U-shaped connectors and the rail segments from being subjected to shear force in the direction of rail segment extension, ensuring a stable connection. Furthermore, a reinforcing plate is located inside each adjacent rail segment at their connection point.

[0031] As attached Figure 4 Appendix Figure 5 As shown, the mobile sorting assembly 103 includes a rectangular frame 104. Movable seats 106 are respectively provided on the two side columns 105 of the frame 104, which can move up and down along the frame. The two movable seats 106 are driven by a drive mechanism 107 including a power source to move synchronously back and forth in the vertical direction. The two movable seats 106 are symmetrically connected to the middle positions of the two sides of a conveyor 108.

[0032] As attached Figure 5 Appendix Figure 6 As shown, the frame 104 of the mobile sorting assembly 103 is positioned directly above the traveling frame 115. The traveling frame 115 includes a T-shaped main rod 116 and a mounting rod 117. A sliding contact line current collector 118 is provided on the side of the main rod 116. A power supply rail 119 matching the sliding contact line current collector 118 is provided on the inner side wall of the outer rail 112 of the lower track 102. Preferably, the power supply rail 119 is located on the inner side of the two straight sections of the outer rail 112, which can reduce the wear between the sliding contact line current collector 118 and the power supply rail 119 at the turning part.

[0033] As attached Figure 6As shown, the mounting rod 117 is C-shaped with its opening facing to the side and away from the main rod 116. Both ends of the mounting rod 117 are hinged to lower traveling wheels 113 via hinge seats 120. The pin connecting the hinge seat 120 and the mounting rod 117 extends vertically. Two limiting wheels 121 are also connected to the lower plate 704 of the mounting rod 117, located between the two lower traveling wheels 113. The axial direction of the limiting wheels 121 extends vertically. Correspondingly, the inner rail 111 and the outer rail 112 also include limiting surfaces 122 that respectively conform to the limiting wheels 121. The two limiting wheels 121 are limited between the two limiting surfaces 122. A connecting pin 123 is also provided at the middle position of the mounting rod 117. The connecting pin 123 extends vertically. A lower joint bearing 124 is connected to the end of the main rod 116 facing away from the mounting rod 117. The lower joint bearing 124 of one walking frame 115 is connected to the connecting pin 123 of another walking frame 115, so that a circle of walking frames 115 are sequentially hinged to form a closed ring structure. At the same time, in order to provide space for the installation of the drive mechanism, the frame is set on the walking frames that are spaced apart from each other.

[0034] The bottom of the main rod 116 is provided with a flat linear motor secondary 125, and the lower rail 102 is provided with a linear motor primary (not shown in the figure) that matches each of the linear motor secondary 125. The two work together to drive the walking frame 115 to move along the rail.

[0035] The main rod 116 is also connected to an assembly frame 126, which is connected to the bottom of the frame 104. The frame 104 includes two columns 105 spaced apart. The lower ends of the two columns 105 are connected by a lower connecting groove 127, and the upper ends of the two columns 105 are connected by an upper connecting groove 128. The lower connecting groove 127 is screwed to the top of the assembly frame 126, and the top plate 129 of the upper connecting groove 128 is connected to the upper traveling wheel 110.

[0036] To ensure the structural stability of the upper traveling wheel 110 and to facilitate the stable hinge connection of the upper part of the adjacent moving sorting assembly 103. (See attached...) Figure 9As shown, two symmetrically distributed upper traveling wheels 110 are provided on the upper connecting groove 128 and close to its two ends. The upper traveling wheels 110 are rotatably mounted on the longitudinal pins 130 of the top plate 129 of the upper connecting groove 128. The longitudinal pins 130 are screwed onto the top plate 129 of the upper connecting groove 128. Specifically, the longitudinal pins 130 have internal threaded holes 131. The top plate 129 is provided with through holes 132 corresponding to the longitudinal pins 130. Locking bolts 133 pass through the through holes 132 from the bottom of the top plate 129 and are screwed into the internal threaded holes 131 of the longitudinal pins 130, thereby realizing the fixed connection between the longitudinal pins 130 and the top plate 129. At the same time, a washer is also provided between the head of the locking bolts 133 and the top plate 129.

[0037] As attached Figure 9 As shown, to increase the stability of the two longitudinal pins 130 and facilitate the installation of the hinge, a lower reinforcing member 133 and an upper reinforcing member 134, located below the upper traveling wheel 110 and connected to the top plate 129, are connected between the two longitudinal pins 130. The upper reinforcing member 134 and the lower reinforcing member 133 have through holes 135 at both ends that match the two longitudinal pins 130. The two ends of the upper reinforcing member 134 and the lower reinforcing member 133 are respectively fitted onto the two longitudinal pins 130. Meanwhile, each longitudinal pin... The pin 130 is also connected to an upper joint bearing 136 located between the upper reinforcing member and the lower reinforcing member 133. In order to ensure that the joint bearing does not move up and down along the longitudinal pin 130, the upper reinforcing member 134, the lower reinforcing member 133 and the top plate 129 are formed with connecting holes 137 that are aligned in the vertical direction. By passing bolts through the aligned connecting holes 137 and locking them with nuts, the upper reinforcing member 134, the upper joint bearing 136 and the lower reinforcing member 133 can be fixed together with the base plate, and the upper joint bearing 136 can be fixed.

[0038] Furthermore, to facilitate the positioning of the bearing 138 of the upper traveling wheel 110, a bushing 139 is also fitted on the two longitudinal pins 130 above the upper reinforcing member 134. The outer diameter of the bushing 139 is equivalent to the outer diameter of the inner ring of the bearing to which the upper traveling wheel 110 is connected, and the bushing 139 abuts against the bottom of the inner ring of the bearing. The upper end of the inner ring of the bearing abuts against the bottom surface of the retainer 140 at the top of the longitudinal pin 130.

[0039] This overall structure not only facilitates the installation of the upper traveling wheel 110 and the upper joint bearing 136, but also ensures the stability of the overall structure through the combination of various components, thereby ensuring that the mobile sorting assembly 103 can fully resist various impacts during operation and is conducive to long-term stable operation.

[0040] During assembly, the upper joint bearing 136 on one side of any movable sorting component 103 is connected to the upper joint bearing 136 on the corresponding side of the adjacent movable sorting component 103 via the connecting rod 171.

[0041] As attached Figure 5 Appendix Figure 7 Appendix Figure 8 As shown, the drive mechanism 107 includes a power source located outside the frame 104, which is a motor 141. The motor 141 is connected to and drives a first rotating shaft 142 to rotate. Preferably, the motor 141 is connected to the first rotating shaft 142 through a reducer 143 and a first coupling 144. The first rotating shaft 142 is rotatably mounted on a bearing seat 145 at the lower end of a column 105. The first rotating shaft 142 is coaxially connected to a second rotating shaft 147 through a transmission shaft 146. The second rotating shaft 147 is rotatably mounted on a bearing seat 145 at the lower end of another column 105. A drive wheel 148 is torsionally connected to the first rotating shaft 142 and the second rotating shaft 147, respectively. Each drive wheel 148 is connected to a driven wheel 150 located above the column 105 through a transmission belt 149. The driven wheel 150 is rotatably mounted on a wheel seat 151 at the top of the column 105. The two drive belts 149 are respectively connected to a movable seat 106, and the belt segments 152 extending longitudinally from the two drive belts 149 are located inside the column 105.

[0042] To avoid interference between the two longitudinally extending belt segments 152 of the transmission belt 149, as shown in the attached... Figure 10 As shown, the column 105 can be a profile. The column 105 also has a partition 155 that divides its internal cavity into a first chamber 153 and a second chamber 154. The partition 155 also helps to increase structural strength, giving the column 105 better support. The two longitudinally extending belt segments 152 of the synchronous belt are respectively located in the first chamber 153 and the second chamber 154. The side of the column 105 has an opening 156 communicating with the second chamber. The movable seat 106 includes a sliding block 157 slidably disposed in the second chamber 154. Part of the sliding block 157 is slidably confined within the second chamber 154, while the other part of the sliding block 157 protrudes outside the column 105 through the opening 156 and connects to the mounting bracket 158.

[0043] As attached Figure 4 Appendix Figure 5As shown, the mounting frame 158 is used to mount the conveyor 108. The mounting frame 158 includes a first vertical plate 159, a second vertical plate 160 connected to the first vertical plate 159 at a 90° angle, and a support plate 161 connected to the lower end of the second vertical plate 160. The first vertical plate 159 is fixed to the outer surface of the sliding block 157 facing away from the column 105. The second vertical plate 160 is bent inside the column 105. The conveyor 108 is mounted on the support plate 161.

[0044] As attached Figure 5 As shown, to facilitate the installation of the bearing seat 145 and the wheel seat, the upper connecting groove 128 and the lower connecting groove 127 have the same structure. The lower connecting groove 127 is used as an example for explanation. It includes a bottom plate and C-shaped side plates 162 vertically arranged on both sides of the bottom plate. They form a C-shaped through groove. The two bearing seats 145 are screwed between the two C-shaped side plates and located at their two ends. The upper protrusions 163 of the C-shaped side plates are screwed to the side of the column 105. The drive shaft 146 is located in the lower connecting groove 127. At the same time, the drive shaft 146 is connected to the first rotating shaft 142 and the second rotating shaft 147 through the couplings at both ends. The top of the part of the two C-shaped side plates located between the two upper protrusions 163 is also connected to a cover plate (not shown in the figure), so as to better protect the drive shaft 146, couplings, etc.

[0045] Of course, in another embodiment, the drive wheel, transmission belt, and driven wheel in the drive mechanism can be replaced by other structures. Specifically, a first bevel gear (not shown in the figure) is coaxially connected to the first and second rotating shafts, and each first bevel gear meshes with a second bevel gear (not shown in the figure) located on the first rotating shaft. The axis of the second bevel gear extends along the extension direction of the column. A lead screw (not shown in the figure) passes through the inner cavity of the column. The lower end of the lead screw is rotatably connected to the shaft seat, and the lower end of the lead screw is also coaxial with and torque-transmittingly connected to the second bevel gear. The upper end of the lead screw is rotatably mounted on the wheel seat. Thus, the rotation of the first bevel gear can switch the rotation of the lead screw through the second bevel gear. The movable nut of the lead screw is connected to the moving seat. Compared with the structure of the conveyor belt, this structure is less affected by the tension of the conveyor belt and has better synchronization.

[0046] As attached Figure 11As shown, the conveyor 108 is a belt conveyor. In order to minimize the weight of the conveyor 108 and reduce the energy consumption during operation, the belt conveyor includes a frame 165 and electric rollers 166 and driven rollers 167 arranged at both ends of the frame 165. A conveyor belt 168 is fitted between the electric rollers 166 and the driven rollers 167. The side frames 165 are also connected by reinforcing rods 169 located below the conveyor belt 168. At the same time, the two side plates of the frame also include side rails 170 extending above the conveyor belt 168. The side rails 170 are trapezoidal in shape, and the two ends of the side rails 170 are slightly lower than the conveying surface of the belt conveyor. The two ends of the side rails 170 are located inside the two ends of the belt conveyor. This can effectively prevent the two ends of the upper side rails 170 from interfering with the loading of goods.

[0047] During operation, the motor 141 drives the first rotating shaft 142 to rotate, which in turn drives the two drive wheels 148 to rotate synchronously, thereby driving the two transmission belts 149 to rotate synchronously. The two transmission belts 149 drive the two movable seats 106 connected to them to move up and down simultaneously, thereby causing the two sides of the conveyor 108 to rise and fall synchronously, thus realizing the adjustment of the sorting height.

[0048] As attached Figure 1 Appendix Figure 2 As shown, a bag-feeding platform 300 is provided on the outer side of the cross-belt sorter 100. The bag-feeding platform 300 can be a known multi-segment type, and the sorting slots for goods can be obtained by manually scanning barcodes with a barcode scanner, or by top-scanning the barcodes on the goods to obtain the corresponding sorting slots. Simultaneously, to ensure that goods are sorted to the appropriate slot components, the bag-feeding platform 300 also includes a size measuring device, such as a 3D camera or a measuring grating, which is not limited here. The number and position of the bag-feeding platforms 300 can be designed as needed and are not limited here.

[0049] As attached Figure 1 Appendix Figure 2 As shown, at least two types of grid components are provided on the outer side of the cross-belt sorter 100; As attached Figure 12 As shown, the first type of grid assembly 500 includes a shelf 501 on which multiple layers of receiving boxes 502 are detachably disposed. The top of the first side plate 503 of the receiving box 502 facing the cross belt sorter 100 is lower than the top of the second side plate 504 opposite to the first side plate 503.

[0050] The shelf 501 includes at least four rectangularly distributed support columns 505. Two support columns 505 on the same side are connected by short crossbeams 506. Multiple layers of first long connecting rods 507 are arranged between the two columns 105 facing the cross-belt sorter 100, and multiple layers of second long connecting rods 508 are arranged between the two columns 105 away from the cross-belt sorter 100. Each first long connecting rod 507 and each second long connecting rod 508 form a pair and cooperate to support a row of receiving boxes 502. Each pair of first long connecting rods 507 is lower than the second long connecting rods 508 so that the top of the first side plate 503 of the receiving box 502 facing the cross-belt sorter 100 is lower than the top of the second side plate 504 opposite to the first side plate 503, thereby facilitating the entry of goods into the receiving boxes 502 of each layer. The outer surface of each receiving box has a hanging guard 509 located at the top of the outer surface.

[0051] As attached Figure 13 Appendix Figure 14 As shown, the second type of grid assembly 700 includes at least one layer of collection trough 701. The width of the collection trough 701 is greater than the width of the receiving box 502. The number of layers of collection trough 701 can be set as needed, such as 2 or 3 layers, and each layer has multiple collection troughs 701. Preferably, the second type of grid assembly includes a base frame 702. A sliding plate is provided on the base frame 702. The sliding plate includes a sloping plate 703, a flat plate 704 and a side baffle 705 arranged in sequence. A partition plate 706 is vertically arranged on the sliding plate, and a collection trough 701 is formed between adjacent partition plates 706.

[0052] As attached Figure 15 - Appendix Figure 17 As shown, a third type of sorting assembly 900 is also provided on the outer side of the cross-belt sorting machine 100. The third type of sorting assembly 900 includes at least one layer of unpowered roller trough. Specifically, the third type of sorting assembly 900 includes a bracket 901, the bracket 901 includes at least one layer of mounting frame 902, the mounting frame 902 includes at least one mounting space 903, and a set of parallel unpowered rollers 904 is provided in the mounting space 903. The height of the set of unpowered rollers decreases from top to bottom, so that the top of the set of unpowered rollers forms an inclined conveying surface. At the same time, each set of unpowered rollers has a stop bar 905 located above the unpowered rollers at both ends. The set of unpowered rollers and the stop bars 905 on both sides form the unpowered roller trough.

[0053] The sorting method of the above-mentioned three-dimensional sorting system includes the following steps: S0, the operator places the goods into the packaging station 300 and makes sure the barcode on the goods faces the scanning device.

[0054] S1, during the process of the feeding platform 300 conveying a piece of goods placed on it to the cross belt sorting machine 100, the size measurement device obtains the size data of the goods and the code reading device obtains the target position of the goods to be sorted after reading the code.

[0055] S2, determine whether the location to which the goods should be sorted, determined based on the size data of the goods, and the target location to which the goods should be sorted belong to the same type of grid component. After obtaining the size data of different goods, the control system can determine the type of grid component to which the goods should be sorted based on the size data of the goods. That is, goods exceeding a certain size threshold need to be sorted into the collection chute, and goods smaller than the size threshold need to be sorted into the collection box. When the goods need to be sorted into the collection chute, but the target location to be sorted after scanning is in the collection box, if the goods are sorted into the collection box, there is a problem that the goods cannot be effectively sorted into the collection box or it will affect the subsequent sorting into the corresponding collection box.

[0056] S3, if so, when the goods enter a mobile sorting component 103, the mobile sorting component 103 moves the goods to the height corresponding to the target position to which they are to be sorted. When the mobile sorting component 103 where the goods are located moves to the target position to which the goods are to be sorted, the conveyor 108 where the goods are located is started to sort them. S4, if not, then when the goods enter a mobile sorting component 103, control the mobile sorting component 103 to sort the goods into an abnormal compartment.

[0057] S5, after the mobile sorting component 103 sorts the goods on it to the corresponding target position or abnormal compartment, the mobile sorting component 103 adjusts the conveyor back to a height that can dock with the packing station so that it can be loaded again.

[0058] Furthermore, the bag supply station 300 also includes a weighing conveyor. When the goods move past the weighing conveyor, the control system also acquires the weight data of the goods weighed by the weighing conveyor. Each sorting compartment corresponds to a certain weight range for sorting needs. For example, the receiving box cannot be used to sort heavy goods (e.g., goods exceeding 5 kg). Correspondingly, in step S2, it is determined whether the position to which the goods should be sorted, determined based on the size and weight data, and the target position to which the goods should be sorted belong to the same sorting compartment. For example, if the position to which the goods should be sorted, determined based on the size data, is the first sorting compartment, and the target position to which the coded goods should be sorted also belongs to the first sorting compartment, but the position to which the goods should be sorted, determined based on the weight measured by the weighing conveyor, belongs to the third sorting compartment, then after this goods enter a moving sorting component, the moving sorting component sorts it into an abnormal compartment. The abnormal compartment can be one of a non-powered roller chute or a collection chute.

[0059] This invention has many other embodiments, and all technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of this invention.

Claims

1. A three-dimensional sorting system, characterized in that, include: A cross-belt sorting machine includes a horizontally arranged upper and lower track, which are closed annular tracks. A set of moving sorting components is movably arranged between the upper and lower tracks, with the upper and lower parts of adjacent moving sorting components hinged. Each moving sorting component includes a rectangular frame mounted on a traveling frame. A linear motor secondary is mounted at the bottom of the traveling frame, and a linear motor primary matching each linear motor secondary is mounted on the lower track. The two components work together to drive the traveling frame to move along the track. The lower track includes an inner and outer track that are concentric and at the same height. The upper track is located above the middle position between the inner and outer tracks, and the distance between the upper track and the inner and outer tracks is the same. The upper track includes a C-shaped upper wheel groove with the groove opening facing downwards. An upper traveling wheel is mounted on the top of the frame of the moving sorting component, and the axis of the upper traveling wheel extends vertically and rolls against the inner walls on both sides of the upper wheel groove. Movable seats are respectively installed on the two side columns of the frame, which can move up and down along them. The two movable seats are driven synchronously to reciprocate in the vertical direction by a drive mechanism including a power source. The two movable seats are symmetrically connected at the middle position on both sides of a conveyor. The lower ends of the two columns of the frame are connected by a lower connecting groove, and the upper ends of the two columns are connected by an upper connecting groove. Two symmetrically distributed upper traveling wheels are provided on the upper connecting groove and close to its two ends. The upper traveling wheels are rotatably mounted on the longitudinal pins on the top plate of the upper connecting groove. The pin is screwed onto the top plate of the upper connecting groove. Between the two longitudinal pins, a lower reinforcing member and an upper reinforcing member are connected, located below the upper traveling wheel and connected to the top plate. The two ends of the upper and lower reinforcing members have through holes that match the two longitudinal pins. The two ends of the upper and lower reinforcing members are respectively fitted onto the two longitudinal pins. At the same time, each longitudinal pin is also connected to an upper joint bearing located between the upper and lower reinforcing members. The upper reinforcing members, the lower reinforcing members, and the top plate are locked together with bolts and nuts, and the upper joint bearing is fixed. A bag feeding station is provided on the outside of the cross-belt sorter; The cross-belt sorter is provided with at least two types of grid components on its outer side; The first type of grid assembly includes a shelf on which multiple layers of receiving boxes are detachably disposed, wherein the top of a first side panel of the receiving boxes facing the cross-belt sorter is lower than the top of a second side panel opposite to the first side panel. The second type of grid assembly includes at least one layer of collection chute, the width of which is greater than the width of the receiving box; The outer side of the cross-belt sorter is also provided with a third type of grid assembly, which includes at least one layer of unpowered roller trough.

2. The three-dimensional sorting system according to claim 1, characterized in that: The upper joint bearing on one side of any movable sorting component is connected to the upper joint bearing on the corresponding side of the adjacent movable sorting component via a connecting rod.

3. The three-dimensional sorting system according to claim 1, characterized in that: The rectangular frame is mounted on the traveling frame, and a sliding contact line current collector is provided on the side of the traveling frame. A power supply rail matching the sliding contact line current collector is provided on the inner side wall of the outer rail of the lower track.

4. The three-dimensional sorting system according to claim 1, characterized in that: The drive mechanism includes a motor located outside the frame. The motor is connected to and drives a first rotating shaft to rotate. The first rotating shaft is coaxially connected to a second rotating shaft via a transmission shaft. Drive wheels located at the bottom of the two columns are respectively connected to the first and second rotating shafts. Each drive wheel is connected to a driven wheel located above the column via a transmission belt. The two transmission belts are respectively connected to a movable seat. The driven wheels are rotatably mounted on the top of the two columns. The transmission belts are located inside the columns.

5. The three-dimensional sorting system according to claim 4, characterized in that: The bearing seats containing the first and second rotating shafts are connected to the bottom of the two columns via a lower connecting groove, and the drive shaft is located in the lower connecting groove.

6. The three-dimensional sorting system according to claim 4, characterized in that: The column includes a first chamber and a second chamber that are separated from each other. Two longitudinally extending belt segments of the transmission belt are located in the first chamber and the second chamber, respectively. The side of the column has an opening that communicates with the second chamber. The movable seat includes a sliding block that is slidably disposed in the second chamber. The sliding block is connected to a mounting frame located on the outside of the column. The mounting frame is connected to the conveyor.

7. The sorting method of the three-dimensional sorting system according to any one of claims 1-6, characterized in that, Includes the following steps: S1, during the process of conveying a cargo placed on the package feeding station to the cross belt sorting machine, the size measurement device obtains the size data of the cargo and the code reading device obtains the target position of the cargo to be sorted after reading the code. S2, determine whether the location where the goods should be sorted according to the size data of the goods and the target location where the goods are to be sorted both belong to the same type of grid component; S3, if so, when the goods enter a mobile sorting component, the mobile sorting component moves the goods to the height corresponding to the target position to which they are to be sorted. When the mobile sorting component containing the goods moves to the target position to which the goods are to be sorted, the conveyor containing the goods is started to sort them. S4, if not, then when the goods enter a mobile sorting component, control the mobile sorting component to sort the goods into an abnormal compartment.

8. The sorting method according to claim 7, characterized in that: In step S1, the weight data of the goods weighed by the weighing conveyor is also obtained. In step S2, it is determined whether the location where the goods should be sorted, determined based on the size data and weight data of the goods, and the target location where the goods are to be sorted both belong to the same type of grid component.

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