Cross-belt sorting machine, lifting sorting machine, cross-belt sorting system and sorting method thereof

Abstract

The invention discloses a cross-belt sorting machine, a lifting sorting machine, a cross-belt sorting system and a sorting method.The cross-belt sorting machine comprises a circle of lifting sorting machine moving along a track, the lifting sorting machine comprises a lifting mechanism and a conveying assembly driven by the lifting mechanism to ascend and descend, and a rotation driving assembly is arranged on the lifting mechanism; the rotary driving assembly is provided with a conveying assembly so that the conveying assembly can horizontally rotate around the longitudinal axis perpendicular to the conveying face of the conveying assembly. The conveying direction of the conveying assembly can be adjusted during sorting, so that the parcels output by the conveying assembly can overcome inertia force borne by the parcels in the moving direction of the lifting sorting machine, and the moving direction of the parcels is closer to be perpendicular to the moving direction of the lifting sorting machine; in this way, the parcels can be accurately sorted under the smaller sorting grid openings, more sorting grid openings can be arranged under the same size, and / or on the basis of the sorting grid openings of the same size, the higher loop line running speed is adopted.

Description

Technical Field

[0001] The present invention relates to the field of sorting, in particular to a cross-belt sorting machine, a lifting sorting machine, a cross-belt sorting system and a sorting method thereof. Background Art

[0002] Cross belt sorter is a commonly used sorting equipment in automated sorting.

[0003] In a cross-belt sorting machine, it is desirable to use multi-layer sorting grids to increase the number of sorting grids. Correspondingly, the patent document with the authorization announcement number CN111014052B discloses a structure that enables the conveying component of the sorting trolley to be raised and lowered to adapt to sorting grids of different heights.

[0004] This structure is used during sorting, such as Figure 1 As shown, the parcel output by the conveying component has a first speed V1 perpendicular to the moving direction of the sorting trolley due to the driving of the conveying component, and also has a second speed V2 along the moving direction of the sorting trolley. This causes the sorting trajectory of the parcel after being output from the conveying component to be parabolic. Therefore, in order to ensure that the parcel output from the conveying component can stably enter the sorting grid, it is necessary to design the width of the entrance of the sorting grid to be wider and / or limit the moving speed of the sorting trolley. However, an overly wide entrance design is obviously not conducive to increasing the number of sorting grids, and limiting the moving speed of the sorting trolley is not conducive to improving the sorting efficiency. Summary of the invention

[0005] The purpose of the present invention is to solve the above problems existing in the prior art and to provide a cross-belt sorting machine, a lifting sorting machine, a cross-belt sorting system and a sorting method thereof.

[0006] The purpose of the present invention is achieved through the following technical solutions: A cross-belt sorter comprises a circle of lifting sorters moving along a track, wherein the lifting sorter comprises a lifting mechanism and a conveying assembly driven to lift by the lifting mechanism, wherein a rotating drive assembly is arranged on the lifting mechanism, and the conveying assembly is arranged on the rotating drive assembly so that the conveying assembly can horizontally rotate around a longitudinal axis perpendicular to a conveying surface of the conveying assembly.

[0007] Preferably, a circle of the lifting and sorting machines are arranged at equal intervals on a mobile frame moving along the lower track, and the mobile frame includes a circle of T-shaped frames hinged in sequence, the bottom middle area of ​​each of the lifting and sorting machines is fixed on a T-shaped frame and the two end areas of its bottom are respectively against the other two T-shaped frames, and the adjacent two end areas of two adjacent lifting and sorting machines are against the same T-shaped frame.

[0008] Preferably, the lifting mechanism includes a rectangular frame, a lifting seat is arranged between two pillars of the frame, both sides of the lifting seat are connected to lifting transmission assemblies arranged at the two pillars, two lifting transmission assemblies are connected by a synchronization mechanism and one lifting transmission assembly is connected to a lifting drive motor, and the rotating drive assembly is arranged on the lifting seat.

[0009] Preferably, a top limiting wheel with an axis extending in a vertical direction is provided at the top of the frame, and the top limiting wheel is rollingly arranged in a wheel groove of the top track.

[0010] Preferably, the rotary drive assembly is a turntable or a rotary cylinder; Or the rotary drive component is a motor, which is fixed on a lifting seat of the lifting mechanism and connected to the conveying component rotatably arranged on the lifting seat.

[0011] Preferably, the motor is a reduction motor and is arranged at the bottom of the lifting seat, which is connected to the bottom center position of the frame of the conveying assembly. The bottom of the frame of the conveying assembly is provided with at least two I-shaped wheels with axes extending in the vertical direction. The I-shaped wheels are respectively rollingly arranged in the arc-shaped limiting holes on the lifting seat where the reduction motor is located, and the radius of the arc-shaped limiting holes is the same and they are concentrically arranged.

[0012] Preferably, the axis of the I-shaped wheel and the longitudinal axis are located in the same plane.

[0013] The lifting sorting machine comprises a lifting mechanism and a conveying assembly arranged on the lifting mechanism and driven to lift by the lifting mechanism, wherein the lifting mechanism is provided with a rotating drive assembly, and the conveying assembly is arranged on the rotating drive assembly so that the conveying assembly can horizontally rotate around a longitudinal axis perpendicular to a conveying surface of the conveying assembly.

[0014] A sorting system comprises any of the cross-belt sorters described above.

[0015] Preferably, at least one side of the cross-belt sorter is provided with a grid opening assembly, and the grid opening assembly includes a multi-layer chute assembly and a package receiving trough connected to the outer side of each layer of the chute assembly and corresponding one-to-one with the sorting grid opening of each layer of the chute assembly.

[0016] In the sorting method of any of the above-mentioned sorting systems, when any of the above-mentioned lifting and sorting machines needs to load a package at a package supply platform, the conveying component is driven to rotate horizontally by the rotating drive component on the above-mentioned lifting and sorting machine so that the conveying direction of the conveying component is consistent with the conveying direction of the package supply platform; And / or when the parcels on any of the lifting and sorting machines need to be sorted at a sorting grid, the conveying assembly is driven to rotate horizontally by the rotating drive assembly so that the conveying direction of the conveying assembly is not perpendicular to the moving direction of the lifting and sorting machine.

[0017] Preferably, before the lifting and sorting machine needs to load a package on a package supply platform, the conveying surface of the conveying component of the lifting and sorting machine is moved to a height lower than the conveying surface of the package supply platform; And / or, when the parcels on any of the lifting and sorting machines need to be sorted at a sorting grid opening, the conveying surface of the conveying assembly of the lifting and sorting machine is made higher than the entrance of the sorting grid opening.

[0018] The advantages of the technical solution of the present invention are mainly reflected in: The lifting and sorting machine of the present invention drives the conveying assembly to rotate horizontally by setting a rotating drive assembly, so that the conveying direction of the conveying assembly can be adjusted during sorting, so that the direction of the driving force applied by the conveying assembly to the package can overcome the inertial force of the package along the moving direction of the lifting and sorting machine, so that the moving direction of the package is closer to being perpendicular to the moving direction of the lifting and sorting machine, which is conducive to accurate sorting of packages in smaller sorting grids, and is conducive to setting more sorting grids of the same size and / or using a faster loop running speed based on sorting grids of the same size.

[0019] The structural design of the rotary drive assembly and the conveying assembly of the present invention can minimize the height space they occupy, thereby facilitating the reduction of the size of the equipment. At the same time, the structure of the present invention can effectively limit the rotation angle of the conveying assembly to prevent its transitional deflection from colliding with other structures.

[0020] The slot assembly of the present invention can conveniently and stably receive packages of different heights with a compact structure, and can effectively detect states such as package blockage and full slots, thereby ensuring timely discovery of abnormal states.

[0021] The side frames of the conveying assembly of the present invention form enclosures, which can effectively prevent the packages thereon from falling from both sides of the conveying assembly when the conveying assembly rotates, and at the same time, avoid the enclosures interfering with the loading and unloading operations to the greatest extent.

[0022] The structure of the present invention can adjust the conveying direction of the conveying assembly to be consistent with the conveying direction of the bag supply platform when loading bags, thereby facilitating better introduction of goods onto the conveying assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the state of a parcel falling into a grid in the existing cross-belt sorter of the present invention; Figure 2It is a partial stereoscopic view of the cross-belt sorting system of the present invention, in which only part of the lifting and sorting machine and part of the slot assembly are shown, and the package supply platform is not shown; Figure 3 yes Figure 2 A partial enlarged view of the middle and lower tracks and the moving frame; Figure 4 is a cross-sectional view of a lifting and sorting machine on one side of the present invention located on a top track and a lower track; Figure 5 It is a bottom-up stereoscopic view of the lifting and sorting machine of the present invention; Figure 6 It is a partial front view of the lifting and sorting machine of the present invention; Figure 7 is a partial cross-sectional view of the lifting and sorting machine of the present invention; Figure 8 It is a cross-sectional schematic diagram of the profile, synchronous belt and sliding frame of the lifting and sorting machine of the present invention; Fig. 9 yes Figure 7 A partial enlarged view of Fig.10 It is a three-dimensional diagram of the conveying assembly of the lifting and sorting machine of the present invention being horizontally rotated and tilted; Fig.11 is a partial top view of the cross-belt sorting system of the present invention, in which only part of the lifting and sorting machine and part of the grid assembly are shown; Fig.12 is a perspective view of a grid assembly of the present invention; Fig.13 is a stereoscopic view of a multi-layer chute assembly in a grid assembly of the present invention; Fig.14 is a bottom-up stereogram of a first proximity sensor of the present invention disposed in a partition; Fig.15 It is a front view of the grid assembly; Fig.16 It is a schematic diagram of supplying packages to a tilted conveying assembly from a package supply platform in the sorting method of the present invention; Fig.17 It is a schematic diagram of the inclined sorting of the conveying component in the sorting method of the present invention. DETAILED DESCRIPTION

[0024] 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.

[0025] 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.

[0026] Example 1 The cross belt sorting machine disclosed by the present invention is described below in conjunction with the accompanying drawings. Figure 2 As shown, it includes a circle of lifting and sorting machines 100 moving along the track, and the circle of lifting and sorting machines 100 are arranged at equal intervals on a moving frame 300 moving along the lower track 200.

[0027] As attached Figure 2 , Attachment Figure 3 As shown, the lower track 200 is arranged on the outer frame 900, and the shape of the lower track 200 can be designed as needed. Preferably, the lower track 200 includes an inner track 210 and an outer track 220 that are concentrically arranged. The shapes of the inner track 210 and the outer track 220 can be designed to be a suitable closed shape as needed. For example, the inner track 210 and the outer track 220 are both waist-shaped or rounded rectangles. At the same time, the inner track 210 and the outer track 220 can be assembled with feasible square tubes. Of course, in other embodiments, the inner track 210 and the outer track 220 can also be known and feasible C-shaped grooves, and their notches are arranged relatively, or the straight sections of the inner track and the outer track are C-shaped grooves, and the turning sections are square tubes. This can enable the turning sections to better withstand the impact during movement, thereby ensuring structural stability.

[0028] As attached Figure 3As shown, the movable frame 300 includes a circle of T-shaped frames 310 hinged in sequence, and the T-shaped frame 310 includes a vertically connected main beam 311 and a C-shaped mounting groove 312, the first end of the main beam 311 is provided with a rod end joint bearing 313, the second end of the main beam 311 is connected to the middle position of the C-shaped mounting groove 312, the notch of the C-shaped mounting groove 312 is facing away from the main beam 311 and the two ends of the C-shaped mounting groove 312 are respectively hinged with wheel seats 320, the pin shaft connecting the wheel seat 320 and the C-shaped mounting groove 312 extends in the vertical direction, and each wheel seat 320 is provided with a movable wheel 330, the axis of the movable wheel 330 extends horizontally, one movable wheel 330 is rollingly set on the top surface of the inner track 210, and the other movable wheel 330 is rollingly set on the top surface of the outer track 220. At the same time, two lower limit wheels 340 are also arranged on the C-shaped installation groove 312 and are located below the moving wheel 330. The two lower limit wheels 340 are rollingly arranged on two opposite sides of the inner track 210 and the outer track 220. At the same time, a connecting shaft 314 is also arranged in the middle position of the C-shaped installation groove 312. The connecting shaft 314 extends in the vertical direction. Adjacent T-shaped frames 310 are connected through rod end joint bearings 313 and the connecting shaft 314.

[0029] As attached Figure 4 As shown, a linear motor secondary assembly 350 matching with the linear motor primary assembly 400 on the lower track 200 is provided at the bottom of the main beam 311, so that the moving frame 300 is driven to move along the lower track 200 through their cooperation. In order to facilitate power supply, a busbar collector 360 can be provided on the side of the main beam of the T-shaped frame, and a power supply rail 500 matching with the busbar collector 360 is provided on the lower track.

[0030] As attached Figure 2 As shown, the middle area of ​​the bottom of each lifting and sorting machine 100 is fixed to the top of the main beam 311 of a T-shaped frame 310, and at the same time, the two end areas of the bottom of the lifting and sorting machine 100 respectively abut against two T-shaped frames 310 on both sides of the T-shaped frame fixedly connected to the lifting and sorting machine, and the two end areas close to each other on two adjacent lifting and sorting machines 100 abut against the same T-shaped frame 310, so that the two end areas of the bottom of each lifting and sorting machine can be stably supported.

[0031] As attached Figure 5As shown, the lifting and sorting machine 100 includes a lifting mechanism 110 and a conveying assembly 130 driven to lift by the lifting mechanism 110. The lifting mechanism 110 is provided with a rotating drive assembly 150. The conveying assembly 130 is provided on the rotating drive assembly 150 so that the conveying assembly 130 can horizontally rotate around a longitudinal axis Z perpendicular to the conveying surface of the conveying assembly 130. The longitudinal axis Z preferably passes through the center of the conveying surface of the conveying assembly. Of course, in other embodiments, it can also be set at other feasible positions.

[0032] As attached Figure 6 , Attachment Figure 7 As shown, the lifting mechanism 110 includes a rectangular frame, a lifting seat 112 is arranged between two pillars 111 of the frame, and the two sides of the lifting seat 112 are connected to the lifting transmission components 113 arranged at the two pillars 111. The two lifting transmission components 113 are connected by a synchronization mechanism 114 and one of the lifting transmission components 113 is connected to a lifting drive motor 115. The rotating drive component 150 is arranged on the lifting seat 112.

[0033] As attached Figure 7 As shown, the support 111 includes a profile 116 arranged along the vertical direction, an upper fixing seat 117 is arranged at the upper end of the profile 116, and a lower fixing seat 118 is arranged at the lower end of the profile 116. The two lower fixing seats 118 are connected by a lower mounting groove 119, and the two upper fixing seats 117 are connected by an upper mounting groove 120.

[0034] The specific structure of the lifting transmission component 113 can be designed as needed. For example, in one embodiment, the lifting transmission component 113 is a synchronous belt mechanism. Figure 7 , Attachment Figure 8As shown, the synchronous belt mechanism includes a lower pulley 121 arranged at a lower fixed seat 118 and an upper pulley 122 arranged at an upper fixed seat 117, the lower support shaft 123 of the lower pulley 121 is rotatably arranged at the lower fixed seat 118 through a bearing, the upper support shaft of the upper pulley 122 is rotatably arranged on the upper fixed seat 117 through a bearing, a synchronous belt 124 inserted into the profile 116 is set between the upper pulley 122 and the lower pulley 121, a straight belt section of the synchronous belt 124 is connected to a sliding frame 125, and the sliding frame 125 can be slid up and down and limited on the profile 116, and the lifting seat 112 is arranged between the two sliding frames 125 connected by two synchronous belts 124. At the same time, the lower support shafts 123 of the two lower pulleys 121 are connected by a synchronization mechanism 114, and the synchronization mechanism 114 is a transmission rod concentrically connected to the two lower support shafts 123. The transmission rod is located in the lower mounting groove and its two ends are respectively connected to the two lower support shafts 123 through couplings. At the same time, one lower support shaft 123 is connected to a lifting drive motor 115 located outside the frame. The lifting drive motor 115 can be a known reduction motor, which will not be described here.

[0035] Therefore, the lifting drive motor 115 can drive the two lower pulleys 121 to rotate synchronously in the same direction. At this time, the two lower pulleys 121 drive the two synchronous belts 124 to rotate synchronously and realize the lifting and lowering of the lifting seat 112.

[0036] Of course, in another embodiment, the lifting transmission assembly 113 can be a screw transmission mechanism. Specifically, the screw transmission mechanism includes a lower support shaft 123 rotatably arranged at the lower fixed seat 118, and a first bevel gear (not shown in the figure) is concentrically arranged at the lower support shaft 123. The first bevel gear is meshed with a second bevel gear (not shown in the figure) above it, and the axis of the second bevel gear extends in the vertical direction and is perpendicular to the axis of the first bevel gear. The second bevel gear is connected to the lower support shaft 123 extending in the vertical direction. The lower end of the screw of the extended lead screw (not shown in the figure), the upper end of the screw of the lead screw can be rotatably connected to the upper fixed seat 117, the movable nut of the lead screw is connected to the sliding frame 125, and the sliding frame 125 can be slid up and down relative to the profile 116 and limited on the profile 116, the lifting seat 112 is arranged between the two sliding frames 125 connected by the two lead screws, and similarly, the two lower support shafts 123 are connected to each other through a transmission rod for torque transmission, and at the same time, the lower support shaft 123 on one side is connected to the lifting drive motor 115 that drives its rotation.

[0037] Therefore, when the lifting drive motor 115 drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, and the second bevel gear drives the screw of the lead screw to rotate, thereby driving the lifting seat 112 to rise and fall.

[0038] In the above embodiment, the top of the lifting and sorting machine is not limited. Therefore, in order to ensure the stable operation of the lifting and sorting machine, the height of the lifting and sorting machine cannot be set too high. Correspondingly, in order to effectively limit the top of the lifting and sorting machine, the stability is increased.

[0039] As attached Fig. 9 As shown, a top limiting wheel 170 with an axis extending in a vertical direction is provided at the top of the frame, and there are two top limiting wheels 170, and the two top limiting wheels 170 are rollingly arranged in the wheel groove of the top track 600, and the top track 600 is also arranged on the outer frame 900, which includes a C-shaped wheel groove with an opening facing downward, and the top limiting wheels 170 are rollingly attached to the two side walls of the wheel groove. At the same time, adjacent frames are connected by the connecting components 180 at their tops.

[0040] In order to increase the stability of the structure, the top limiting wheel 170 is rotatably arranged on the vertical axis 171 of the top plate 126 of the upper mounting groove 120, and the vertical axis 171 is screwed on the top plate 126 of the upper mounting groove 120. Specifically, the vertical axis 171 has an internal threaded hole, and the top plate 126 is provided with a through hole corresponding to the vertical axis 171. The locking bolt 172 penetrates the through hole from the bottom of the top plate 126 and is screwed into the internal threaded hole of the vertical axis 171 to achieve fixed connection between the vertical axis 171 and the top plate 126. At the same time, a gasket is also provided between the head of the locking bolt 172 and the top plate 126.

[0041] In order to increase the stability of the two vertical shafts 171 and facilitate the installation of the connecting assembly 180, a lower reinforcing plate 173 and an upper reinforcing plate 174 located below the top limiting wheel 170 and connected to the top plate 126 are also connected between the two vertical shafts 171, and both ends of the upper reinforcing plate 174 and the lower reinforcing plate 173 have through holes matching the two vertical shafts 171, and both ends of the upper reinforcing plate 174 and the lower reinforcing plate 173 are respectively mounted on the two vertical shafts 171. At the same time, each of the vertical shafts 171 is also connected to a top joint bearing 181 located between the upper reinforcing plate and the lower reinforcing plate 173, and two adjacent top joint bearings 181 on adjacent frames are connected by a connecting rod 182, and the two top joint bearings and the connecting rod constitute the connecting assembly 180. In order to ensure that the top joint bearing 181 does not move up and down along the vertical axis 171, the upper reinforcing plate 174, the lower reinforcing plate 173 and the top plate 126 are formed with connecting holes 175 that are positioned opposite to each other in the vertical direction. The upper reinforcing plate 174, the top joint bearing 181 and the lower reinforcing plate 173 can be fixed together with the bottom plate by passing bolts through the connecting holes 175 and tightening them with nuts, and the top joint bearing 181 can also be fixed.

[0042] Furthermore, in order to facilitate the limiting of the bearing 176 in the top limiting wheel 170, a guide sleeve 177 located above the upper reinforcing plate 174 is also mounted on the two vertical shafts 171. The outer diameter of the guide sleeve 177 is equivalent to the outer diameter of the inner ring of the bearing connected to the top limiting wheel 170, and the guide sleeve abuts against the bottom of the inner ring of the bearing, and the upper end of the inner ring of the bearing abuts against the bottom surface of the limiting plate 178 at the top of the vertical shaft 171.

[0043] Such an overall structure can not only facilitate the installation of the top limiting wheel 170 and the top joint bearing 181, but also ensure the stability of the overall structure through the mutual combination of various components, so that the lifting and sorting machine can fully resist various impacts during operation to ensure stable operation.

[0044] The rotary drive assembly 150 disposed on the lifting seat 112 can be designed according to different needs. For example, the rotary drive assembly 150 can be a turntable or a rotary cylinder. The turntable or the rotary cylinder can be disposed below the lifting seat 112. The rotary disk of the turntable or the rotary cylinder is connected to the conveying assembly 130 located above the lifting seat 112.

[0045] In another embodiment, the rotation drive assembly 150 is a motor, which is fixed on the lifting seat 112 of the lifting mechanism 110 and connected to the conveying assembly 130 rotatably arranged on the lifting seat 112. For example, the conveying assembly 130 is rotatably arranged on the lifting seat 112 through a plane thrust bearing, and at the same time, a rotating shaft penetrating through the center hole of the plane thrust bearing can be arranged at the bottom center position of the conveying assembly 130, and the rotating shaft is connected to the motor through a synchronous belt 124 mechanism or a gear transmission mechanism, so that the motor drives the rotating shaft to rotate and then drives the conveying assembly 130 to rotate.

[0046] In a more preferred embodiment, as shown in the attached Figure 5 As shown, in order to make the rotation of the conveying assembly 130 have better stability and better limit the rotation angle of the conveying assembly 130, the motor is a reduction motor and is arranged at the bottom of the lifting seat 112, and its power output shaft is connected to the bottom center position of the frame 131 of the conveying assembly 130. The bottom of the frame 131 of the conveying assembly 130 is provided with at least two I-shaped wheels 132 with axes extending in the vertical direction. The I-shaped wheels 132 are respectively rollingly arranged in the arc-shaped limiting holes 127 on the lifting seat 112 where the reduction motor is located. The outer diameter of the wheel axle between the two end plates of the I-shaped wheel is equivalent to the aperture of the arc-shaped limiting hole 127 and is penetrated in the arc-shaped limiting hole. The diameter of the two end plates of the I-shaped wheel is larger than the width of the arc-shaped limiting hole. The radius of the arc-shaped limiting hole 127 is the same and is concentrically arranged. More preferably, the axis of the I-shaped wheel 132 and the longitudinal axis Z are located in the same plane, and the arc-shaped limiting holes are symmetrically arranged on both sides of the longitudinal axis.

[0047] As attached Fig.10 As shown, the conveying assembly 130 can be a known and feasible belt conveyor, and of course, a roller conveyor can also be used when necessary. Preferably, the frame 131 of the conveying assembly 130 includes two side frames 132, and the two side frames partially protrude above the top of the conveyor belt of the conveying assembly to form a fence 133, and the fence 133 is trapezoidal and its two ends keep a predetermined distance from the two ends of the conveyor belt, so that the parcel can be blocked and the import and export of the parcel can be facilitated as much as possible.

[0048] Example 2 This embodiment discloses a sorting system, as shown in the attached Figure 2 , Attachment Fig.11 As shown, it includes the cross-belt sorting machine as described above, and a bag supply area is arranged beside the track of the cross-belt sorting machine. The bag supply area includes at least one bag supply table 700. The bag supply table 700 can be a known and feasible multi-stage bag supply table 700. Its specific structure is a known technology and will not be described here.

[0049] As attached Fig.11 As shown, at least one side of the cross-belt sorter is provided with a grid assembly 800, and there are multiple grid assemblies 800, and their number and positions can be set as needed, which is not limited here.

[0050] As attached Fig.12 As shown, the slot assembly 800 includes a plurality of layers of chute assemblies 810 and a package receiving slot 820 connected to the outside of each layer of the chute assembly 810 and corresponding one-to-one to the sorting slots 811 of each layer of the chute assembly 810 .

[0051] As attached Fig.13 As shown, the grid assembly 800 includes a first bracket 830, on which a plurality of layers of slide assemblies 810 are arranged, each layer of the slide assemblies 810 includes an inclined slide plate 812, on which a row of partitions 813 are evenly spaced from one end to the other end, and a sorting grid 811 is formed between adjacent partitions 813.

[0052] The first bracket 830 includes at least four columns distributed in a rectangular shape, and adjacent columns are connected by horizontal connecting rods to form a whole, and the tops of the columns are closed by sealing plates. In addition, for easy movement, universal wheels are provided at the bottom of the first bracket 830, and universal wheels can be provided at the bottom of each column. Of course, when the first bracket 830 cooperates with other mobile structures, universal wheels can also be provided only at the bottom of the outer columns.

[0053] As attached Fig.13 , Attachment Fig.14 As shown, the slide assembly 810 is arranged on a horizontal connecting rod 814 between two columns that are farther apart. At the same time, in order to facilitate the tilting of the slide plate 812 of the slide assembly 810, the two horizontal connecting rods 814 where the slide assembly 810 is located are arranged one high and one low. The upper side of the slide plate 812 is bent downward to form a bending portion, and the bending portion is arranged on the higher horizontal connecting rod 814. The lower side of the slide plate 812 is bent downward to form a connecting portion 815. The connecting portion 815 is L-shaped or J-shaped and is arranged on the lower horizontal connecting rod 814, so that the slide plate 812 maintains a tilted state.

[0054] As attached Fig.14As shown, in order to allow each sorting grid 811 to have a wider entrance, the partition 813 is a triangle formed by a first triangular plate 816, a second triangular plate 817 and a third triangular plate 818. The first triangular plate 816 is perpendicular to the slide 812, and the first triangular plate 816, the first triangular plate 816 and the second triangular plate 817 cooperate to form a sharp-angled second triangular plate 817 facing the upper side of the slide 812. The first triangular plate 816 extends a certain distance from the lower side of the slide 812 to the upper side, and maintains a certain distance from the upper side of the bottom plate. The first triangular plate 816 and the second triangular plate 817 are both vertically connected to the third triangular plate 818, and the third triangular plate 818 is perpendicular to the horizontal plane. The first triangular plate 816, the second triangular plate 817 and the third triangular plate 818 partition 813 can be fixed on the slide 812 by welding.

[0055] As attached Fig.13 , Attachment Fig.14 As shown, among the two partitions 813 forming a sorting grid 811, at least one is provided with a first proximity sensor 840 for detecting whether the sorting grid 811 is blocked with a package, and a detection through hole 801 for the first proximity sensor 840 to detect is provided on the second triangular plate 817 of the partition 813. The first proximity sensor 840 can be fixed in the partition 813 by a sensor mounting bracket fixed in the partition 813.

[0056] In order to facilitate the installation of the first proximity sensor 840, an avoidance hole 819 covered by each of the partitions 813 is provided on the slide plate 812, and a sensor mounting bracket is provided at the avoidance hole 819 to install the first proximity sensor 840. The sensor mounting bracket is passed through the avoidance hole 819 and fixed to the inner wall of the first triangular plate 816.

[0057] As attached Fig.13 As shown, in order to facilitate power supply for a group of first proximity sensors 840, an electrical box 850 located below the lowest slide assembly 810 is provided on the first bracket 830, and a power supply interface 851 is provided on the outer side of the electrical box 850 to facilitate the connection of an external power supply connector, and in order to facilitate the accurate docking of the power supply interface 851 with the power supply connector, guide wheels 831 with axes extending in the vertical direction and protruding outside the first bracket 830 are respectively provided on both sides of the first bracket 830, and the two sides of the first bracket 830 are the two sides of the first bracket 830 corresponding to the two ends of the slide assembly 810.

[0058] As attached Fig.12 As shown, a second bracket 860 is provided on a side of the first bracket 830 corresponding to the lower side of the slide plate 812 , and the package receiving groove 820 is provided on the second bracket 860 .

[0059] The structure of the second bracket 860 may be comparable to that of the first bracket 830 . Preferably, four universal wheels distributed in a rectangular shape are provided at the bottom of the second bracket 860 .

[0060] The second bracket 860 is provided with support rods 861 for setting up each layer of the package receiving slots 820. The two support rods 861 on which the package receiving slots 820 of one layer are located are arranged one high and one low, so that the package receiving slots 820 of each layer are inclined on the second bracket 860. At the same time, the higher side of the entrance of the package receiving slots 820 is connected to a certain distance below the output end of each sorting grid 811, which can effectively avoid the packages from being concentrated on the side of the package receiving slots close to the sorting grid so that each package receiving slot 820 can be effectively filled with packages.

[0061] As attached Fig.15 As shown, in order to conveniently determine whether each package receiving slot 820 is full of packages, a group of second proximity sensors 870 for detecting whether each package receiving slot 820 is full of packages is provided at the connecting portion 815, and the package receiving slot 820 is located below the second proximity sensors 870.

[0062] As attached Fig.15 As shown, in order to facilitate the staff to know the status of each sorting grid 811 and the package receiving slot 820 in time, a status indicator 880 is further provided on the side of the frame facing away from the bracket. The status indicator 880 is preferably an indicator light, and each indicator light is used to indicate the status of a sorting grid 811 and its corresponding package receiving slot 820. For example, the indicator light is a multi-color LED, and different states are distinguished by making the indicator light emit different colors of light.

[0063] Example 3 This embodiment discloses a sorting method for the above-mentioned sorting system. Like the existing sorting method, a parcel is placed on a package supply platform 700 and scanned by a code scanning device to obtain its corresponding sorting grid 811. At the same time, it is weighed at a weighing conveyor and then conveyed to a conveying component 130 of a predetermined lifting and sorting machine. The lifting and sorting machine adjusts the conveying surface of the conveying component 130 to a corresponding height according to the height of the entrance of the sorting grid 811 of the parcel entering the conveying component 130; when the conveying component 130 moves to the sorting grid 811 corresponding to the parcel, the conveying component 130 performs sorting. After the sorting is completed, the lifting and sorting machine adjusts the conveying surface of the conveying component to a height matching the conveying surface of the package supply platform and loads the package again.

[0064] The difference from the existing sorting method is: In the sorting method of the present invention, when any of the lifting and sorting machines 100 needs to load a package at a package supply platform 700, the rotary drive assembly 150 on the lifting and sorting machine 100 drives the conveying assembly 130 to rotate horizontally so that the conveying direction of the conveying assembly 130 is consistent with the conveying direction of the package supply platform 700, as shown in the attached figure. Fig.16 As shown, the packages output by the package supply station 700 can be conveyed to the conveying component 130 more smoothly.

[0065] In order to better ensure that the parcels are reliably supplied from the package supply platform 700 to the conveyor assembly 130, the conveying surface of the conveyor assembly 130 of the lifting and sorting machine 100 needs to be moved to a height lower than the conveying surface of the package supply platform 700 before the lifting and sorting machine 100 loads the parcels at the package supply platform 700. The conveying surface of the conveyor assembly 130 only needs to be slightly lower than the conveying surface of the package supply platform 700, for example, the height difference between the two is between 0.5-2 cm, and the height difference between the conveying surface of the conveyor assembly 130 and the conveying surface of the package supply platform 700 can be designed as needed, which is not limited here.

[0066] And / or, in the sorting method of the present invention, when a parcel on any of the lifting and sorting machines 100 needs to be sorted at a chute assembly 810, the conveying assembly 130 is driven to rotate horizontally by the rotating drive assembly 150 so that the conveying direction of the conveying assembly 130 is not perpendicular to the moving direction of the lifting and sorting machine 100, specifically, the output end of the conveying assembly 130 is biased toward the upstream of the sorting grid 811 to which the parcel is to be sorted, as shown in the attached Fig.17 As shown, the parcel enters the sorting grid as much as possible in a state perpendicular to the moving direction of the lifting sorter 100. Similarly, in order to facilitate the parcel to enter the grid, the conveying surface of the conveying component 130 can be slightly higher than the height of the entrance of the sorting grid, for example, the height difference between the two is between 0.5-2cm.

[0067] 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 cross-belt sorter, comprising a circle of lifting sorters moving along a track, the lifting sorter comprising a lifting mechanism and a conveying assembly driven to lift by the lifting mechanism, characterized in that: The lifting mechanism is provided with a rotation drive assembly, and the conveying assembly is provided on the rotation drive assembly so that the conveying assembly can horizontally rotate around a longitudinal axis perpendicular to the conveying surface of the conveying assembly.

2. The cross belt sorter according to claim 1, characterized in that: A circle of the lifting and sorting machines are arranged at equal intervals on a moving frame moving along the lower track, and the moving frame includes a circle of T-shaped frames hinged in sequence, the bottom middle area of ​​each of the lifting and sorting machines is fixed on a T-shaped frame and the two end areas of the bottom thereof are respectively against the other two T-shaped frames, and the two end areas of two adjacent lifting and sorting machines are against the same T-shaped frame.

3. The cross belt sorter according to claim 1, characterized in that: The lifting mechanism comprises a rectangular frame, a lifting seat is arranged between two pillars of the frame, both sides of the lifting seat are connected to lifting transmission components arranged at the two pillars, two lifting transmission components are connected by a synchronization mechanism and one lifting transmission component is connected to a lifting drive motor, and the rotating drive component is arranged on the lifting seat.

4. The cross belt sorter according to claim 3, characterized in that: A top limiting wheel with an axis extending in a vertical direction is arranged on the top of the frame, and the top limiting wheel is rollingly arranged in a wheel groove of the top track.

5. The cross belt sorter according to claim 1, characterized in that: The rotary drive assembly is a turntable or a rotary cylinder; Or the rotary drive component is a motor, which is fixed on a lifting seat of the lifting mechanism and connected to the conveying component rotatably arranged on the lifting seat.

6. The cross belt sorter according to claim 1, characterized in that: The motor is a reduction motor and is arranged at the bottom of the lifting seat. It is connected to the bottom center position of the frame of the conveying assembly. The bottom of the frame of the conveying assembly is provided with at least two I-shaped wheels with axes extending in the vertical direction. The I-shaped wheels are respectively rollingly arranged in the arc-shaped limiting holes on the lifting seat where the reduction motor is located. The radius of the arc-shaped limiting holes is the same and they are concentrically arranged.

7. The cross belt sorter according to claim 6, characterized in that: The axis of the I-shaped wheel and the longitudinal axis are located in the same plane.

8. A lifting sorting machine, comprising a lifting mechanism and a conveying assembly arranged on the lifting mechanism and driven to lift by the lifting mechanism, characterized in that: The lifting mechanism is provided with a rotation drive assembly, and the conveying assembly is provided on the rotation drive assembly so that the conveying assembly can horizontally rotate around a longitudinal axis perpendicular to the conveying surface of the conveying assembly.

9. Sorting system, characterized by: Comprising a cross-belt sorting machine as described in any one of claims 1-7.

10. The sorting system according to claim 9, characterized in that: At least one side of the cross-belt sorter is provided with a grid opening assembly, which includes a multi-layer chute assembly and a package receiving slot connected to the outside of each layer of the chute assembly and corresponding to the sorting grid opening of each layer of the chute assembly.

11. The sorting method of the sorting system according to claim 9 or 10, characterized in that: When any of the lifting and sorting machines needs to load a package at a package supply platform, the conveying component is driven to rotate horizontally by the rotary drive component on the lifting and sorting machine so that the conveying direction of the conveying component is consistent with the conveying direction of the package supply platform; And / or when the parcels on any of the lifting and sorting machines need to be sorted at a sorting grid, the conveying assembly is driven by the rotating drive assembly to rotate horizontally so that the conveying direction of the conveying assembly is not perpendicular to the moving direction of the lifting and sorting machine.

12. The sorting method of the cross belt sorter according to claim 11, characterized in that: Before the lifting and sorting machine needs to load a package on a package supply platform, the conveying surface of the conveying component of the lifting and sorting machine is moved to a height lower than the conveying surface of the package supply platform; And / or, when the parcels on any of the lifting and sorting machines need to be sorted at a sorting grid opening, the conveying surface of the conveying assembly of the lifting and sorting machine is made higher than the entrance of the sorting grid opening.

Images