Multi-layer rail-type intelligent sorting device

Abstract

A multi-layer rail-type intelligent sorting device, comprising a rack (10), a plurality of layers of rails (12) distributed up and down, a sorting trolley (20) movably mounted on each rail (12), a sorting driving assembly (70) for moving the sorting trolleys (20) on the rails (12), and a parcel supplying unit, wherein the plurality of layers of rails (12) are all fixedly arranged on the rack (10), a parcel supplying area (11) is provided on a side edge of the rack (10), and the parcel supplying unit is provided in the parcel supplying area (11) and supplies an article to be sorted to the sorting trolley (20) in each layer. The multi-layer rail-type intelligent sorting device has the characteristics of being low in terms of cost, easy to operate, easy to maintain, high in terms of sorting rate, high in terms of accuracy, high in terms of goods size compatibility, etc., the secondary goods sorting efficiency is improved, the investment of secondary goods sorting links is reduced, manpower investment is reduced, and the sorting accuracy is improved; manual / automatic feeding can be achieved, and articles can be rapidly and accurately sorted to designated positions; and the sorting trolleys use a rail-type direct transmission structure, parcels are supplied vertically, and a parcel supplying direction is consistent with a running direction, such that the stability of the goods can be kept to the maximum extent.

Description

Multi-layer track type intelligent sorting device TECHNICAL FIELD

[0001] The present application relates to the technical field of sorting equipment, in particular to a multi-layer track type intelligent sorting device. BACKGROUND

[0002] The automatic sorting device is a machine that sorts articles according to pre-set computer instructions and delivers the sorted articles to designated locations. With the development of laser scanning, bar code and computer control technology, the automatic sorting device has the characteristics of continuously sorting large quantities of goods, extremely low sorting error rate and basically unmanned sorting operation, and is increasingly used in logistics.

[0003] The existing sorting device often has a complex structure, including multiple translation, lifting and other mechanisms, which is inconvenient to operate, difficult to maintain and high in cost. Especially for users who need to improve the efficiency of secondary sorting of goods, the investment in the secondary sorting of goods is too high. SUMMARY

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide a multi-layer track type intelligent sorting device which is low in cost, easy to maintain and high in sorting rate.

[0005] The present application provides a multi-layer track type intelligent sorting device, which comprises a rack, a plurality of layers of tracks distributed vertically, a sorting trolley movably mounted on each track, a sorting drive assembly for moving the sorting trolley on the track, and a feeding unit. The plurality of layers of tracks are fixed to the rack, and the side of the rack is provided with a feeding area. The feeding unit is arranged in the feeding area and supplies sorted articles to each layer of sorting trolleys. The present application has the characteristics of low cost, simple operation, easy maintenance, high sorting rate, high accuracy, high compatibility of goods size, etc. It improves the efficiency of secondary sorting of goods, reduces the investment in the secondary sorting of goods, reduces the labor input and improves the sorting accuracy. The present application can realize manual / automatic feeding, and can quickly and accurately sort articles to a designated location. The transmission of the sorting trolley is a track type direct transmission structure, vertical feeding, and the feeding direction is consistent with the running direction, which can maximize the stability of the goods.

[0006] As a preferred multi-layer track type intelligent sorting device, the feeding unit comprises a feeding conveyor and a feeding lifting device. The feeding conveyor comprises a feeding base and a feeding conveyor assembly arranged on the feeding base. The feeding lifting device is connected between the feeding conveyor and each layer of sorting trolleys. The feeding lifting device has a lifting conveyor trolley that can move up and down.

[0007] As the preferred of the multi-layer track type intelligent sorting device, the package lifting device further comprises a frame support, at least one pair of upper and lower lifting synchronous pulleys arranged in the frame support, a lifting synchronous belt arranged between the pair of upper and lower lifting synchronous pulleys, and a lifting servo motor arranged on the frame support, the lifting servo motor is in transmission connection with the lifting synchronous pulleys, and the lifting synchronous belt is connected with the lifting conveying trolley.

[0008] As the preferred of the multi-layer track type intelligent sorting device, the package lifting device further comprises a vertical beam, a lifting servo motor arranged on the vertical beam, a lifting guide rail fixed on one side of the vertical beam, and a lifting sliding block in sliding cooperation with the lifting guide rail, the lifting servo motor is in transmission connection with the lifting conveying trolley, and the lifting sliding block is fixedly connected with the lifting conveying trolley.

[0009] As the preferred of the multi-layer track type intelligent sorting device, the lifting conveying trolley comprises a lifting conveying support, a pair of lifting rollers rotatably installed on the lifting conveying support, and a lifting conveying belt connected on the pair of lifting rollers.

[0010] As the preferred of the multi-layer track type intelligent sorting device, the package conveying assembly comprises a package conveying support, a package driving source installed on the package conveying support, a pair of package rollers rotatably installed on the package conveying support, and a package conveying belt connected on the pair of package rollers, the package conveying support is fixedly connected with the package base, and the package driving source is in transmission connection with the package rollers.

[0011] As the preferred of the multi-layer track type intelligent sorting device, the package conveying assembly has multiple groups, the package driving sources of the multiple groups of package conveying assemblies are independent of each other; along the conveying direction of the package conveying belt, the multiple groups of package conveying assemblies are sequentially connected and are in a stepped distribution from high to low, and the adjacent two groups of package conveying assemblies are arranged in close proximity.

[0012] As the preferred of the multi-layer track type intelligent sorting device, the package conveying assembly has multiple groups, a triangular region is formed between the adjacent two groups of package conveying assemblies, and the package rollers are small-diameter rollers with a diameter of not greater than 40 mm.

[0013] As the preferred of the multi-layer track type intelligent sorting device, the package driving source is a motor, each group of package conveying assemblies further comprises a transmission roller rotatably supported in the package base, a first pulley fixed on the motor shaft of the package driving source, a second pulley fixed on the transmission roller, and a pulley transmission synchronous belt connected between the first pulley and the second pulley, the transmission roller is in contact cooperation with the inner circumferential surface of the package conveying belt and is distributed below the pair of package rollers, and the diameter of the transmission roller is greater than the diameter of the package roller.

[0014] As a preferred embodiment of the multi-layer track type intelligent sorting device, the sorting trolley comprises a trolley frame, a pair of sorting rollers rotatably mounted on the trolley frame, and a sorting conveyor belt connected to the pair of sorting rollers.

[0015] As a preferred embodiment of the multi-layer track type intelligent sorting device, the sorting trolley further comprises a pair of side limiting stoppers mounted on the trolley frame and a pair of main limiting stoppers mounted on the trolley frame, a first opening and a second opening are formed between the sorting conveyor belt and the pair of side limiting stoppers, the first opening and the second opening are distributed at both ends of the sorting conveyor belt along the conveying direction of the sorting conveyor belt, and the main limiting stoppers are movably mounted on the trolley frame to close or open the first opening and the second opening.

[0016] As a preferred embodiment of the multi-layer track type intelligent sorting device, each of the main limiting stoppers comprises two limiting gates rotatably mounted on the trolley frame, the sorting trolley is provided with a stopper driving source at each limiting gate in driving connection with the limiting gate, and the stopper driving source is fixed to the trolley frame.

[0017] As a preferred embodiment of the multi-layer track type intelligent sorting device, the sorting trolley further comprises a lifting driving source and a lifting transmission unit mounted on the trolley frame, and a pair of main limiting stoppers are movably mounted on the trolley frame, the lifting driving source is in driving connection with the pair of main limiting stoppers through the lifting transmission unit and drives the pair of main limiting stoppers to synchronously lift.

[0018] As a preferred embodiment of the multi-layer track type intelligent sorting device, the multi-layer track type intelligent sorting device further comprises a material receiving device and a material dropping mechanism both arranged on the outer side of the rack; the material receiving device comprises a goods shelf and a plurality of material receiving frames arranged in an array on the goods shelf; the material dropping mechanism comprises a chute bottom plate fixed to the rack and a plurality of partition plates mounted on the chute bottom plate, a plurality of arrayed material dropping chutes are formed between the chute bottom plate and the plurality of partition plates, and a plurality of the material dropping chutes correspond to a plurality of the material receiving frames one by one.

[0019] As a preferred embodiment of the multi-layer track type intelligent sorting device, the chute bottom plate has a first side edge close to the sorting trolley and a second side edge away from the sorting trolley, the material dropping mechanism is provided with a flexible stopper on the first side edge of the chute bottom plate, and the flexible stopper comprises a plurality of flexible strips arranged at intervals.

[0020] As a preferred embodiment of the multi-layer track type intelligent sorting device, the sorting driving assembly comprises at least one set of synchronous belt transmission assembly, the synchronous belt transmission assembly comprises a pair of trolley synchronous pulleys rotatably mounted on the rack, a trolley synchronous belt connected between the pair of trolley synchronous pulleys, and a trolley servo motor in driving connection with one end of the trolley synchronous pulley, the extension direction of the trolley synchronous belt is parallel to the extension direction of the track, and the trolley frame of the sorting trolley is fixedly connected with the trolley synchronous belt.

[0021] As a preferred embodiment of the multi-layer track intelligent sorting device, the package feeding unit comprises package feeding slots arranged at the package feeding area and matched with the tracks in an up-down distribution, and a package feeding assembly arranged at each package feeding slot, the package feeding assembly comprising a package feeding chute.

[0022] As a preferred embodiment of the multi-layer track intelligent sorting device, the package feeding unit comprises package feeding slots arranged at the package feeding area and matched with the tracks in an up-down distribution, and a package feeding assembly arranged at each package feeding slot, the package feeding assembly comprising a package feeding conveyor.

[0023] As a preferred embodiment of the multi-layer track intelligent sorting device, the package feeding area and the package feeding unit are arranged at a non-end position in the extension direction of the rack; along the extension direction of the rack, sorting trolleys and sorting drive assemblies are arranged on both sides of the package feeding unit, and the sorting drive assemblies on both sides are staggered at the package feeding area, so that the movement strokes of the sorting trolleys on both sides have an overlapping section at the package feeding area.

[0024] The application also provides a multi-layer track intelligent sorting device, comprising a rack, a plurality of tracks arranged in an up-down distribution on the rack, a sorting trolley movably mounted on the tracks, and a sorting drive assembly for moving the sorting trolley on the tracks; a package feeding conveyor is arranged on the side of the rack, the package feeding conveyor is provided with a package feeding assembly, and a package lifting device is arranged to movably connect the package feeding assembly and the sorting trolley. The package feeding conveyor can be manually loaded or automatically loaded by a package feeding device. The goods are delivered to the package feeding assembly, transferred to the sorting trolley through the package lifting device, and the sorting drive assembly controls the sorting trolley to move to a specified position.

[0025] As a preferred embodiment of the multi-layer track intelligent sorting device, the package lifting device comprises a frame support, at least one pair of up-down lifting synchronous pulleys are arranged in the frame support, a lifting synchronous belt is arranged between the pair of up-down lifting synchronous pulleys, a lifting servo motor is arranged on the frame support and connected with the lifting synchronous pulleys, and a lifting conveying trolley is connected with the lifting synchronous belt. The lifting servo motor works, the lifting synchronous pulleys and the lifting synchronous belt rotate to lift or lower the lifting conveying trolley to different heights of the tracks, and the lifting conveying trolley conveys the goods to the sorting trolley.

[0026] As the preferred of the multi-layer track intelligent sorting device, the package lifting device comprises a vertical beam, a lifting servo motor arranged on the vertical beam, a lifting guide rail fixed on one side of the vertical beam, a lifting sliding block in sliding cooperation with the lifting guide rail, and a lifting conveying trolley in transmission connection with the lifting servo motor, and the lifting sliding block is fixedly connected with the lifting conveying trolley. When the lifting servo motor works, the lifting conveying trolley is lifted or lowered to the track at different heights through the lifting guide rail and the lifting sliding block, and the lifting conveying trolley conveys the goods to the sorting trolley.

[0027] As the preferred of the multi-layer track intelligent sorting device, the package conveying assembly comprises a package conveying support, a pair of package rollers rotatably arranged on the package conveying support, and a package conveying belt connected on the pair of package rollers; and the lifting conveying trolley comprises a lifting conveying support, a pair of lifting rollers rotatably arranged on the lifting conveying support, and a lifting conveying belt connected on the pair of lifting rollers.

[0028] As the preferred of the multi-layer track intelligent sorting device, the package conveying device is provided with a control panel and a scanner. The scanner is used for scanning the goods to confirm the position to which the goods are to be sent, and the control panel is used for displaying the working state of the device and performing operation. An alarm is generally also provided to alarm when an abnormality occurs.

[0029] As the preferred of the multi-layer track intelligent sorting device, the sorting trolley comprises a trolley frame, a pair of sorting rollers rotatably arranged on the trolley frame, and a sorting conveying belt connected on the pair of sorting rollers, the bottom of the trolley frame is provided with a walking wheel, the trolley frame on both sides of the sorting conveying belt is respectively provided with a side limiting stop piece, and at least two stop strips are arranged on the sorting conveying belt. The structure of the side limiting stop piece and the stop strip ensures that the goods will not accidentally fall off the sorting conveying belt, the sorting rollers are driven by a motor or the sorting rollers are electric rollers, and the forward and reverse movements of the sorting conveying belt are realized.

[0030] As the preferred of the multi-layer track intelligent sorting device, the trolley frame is provided with a transverse side wheel on both sides, and the track is provided with a vertical section abutting against the side wheel on both sides. The track can be two angle steels arranged oppositely, the walking wheel is arranged on the horizontal section, and the side wheel abuts against the vertical section to play a role of movement guide.

[0031] As a preferred embodiment of the multi-layer track type intelligent sorting device, the sorting drive assembly comprises at least one set of synchronous belt drive assembly, which comprises a pair of trolley synchronous pulleys rotatably mounted on the rack, a trolley synchronous belt connected between the pair of trolley synchronous pulleys, and a trolley servo motor connected in transmission with one of the trolley synchronous pulleys, the extension direction of the trolley synchronous belt is parallel to the extension direction of the track, and the frame of the sorting trolley is fixedly connected with the trolley synchronous belt. The trolley servo motor works, and the rotation of the trolley synchronous pulley and the trolley synchronous belt can move the sorting trolley horizontally to the designated position.

[0032] As a preferred embodiment of the multi-layer track type intelligent sorting device, the synchronous belt drive assembly has two sets; along the direction perpendicular to the translation direction of the sorting trolley, the two sets of synchronous belt drive assemblies are symmetrically connected on both sides of the frame of the sorting trolley, so that the overall force of the sorting trolley is more balanced, and the stability of the track translation is better.

[0033] As a preferred embodiment of the multi-layer track type intelligent sorting device, the package supply conveying equipment is located at the end of the side of the rack along the extension direction of the rack, the rack is provided with a certain number of material falling chutes arranged in an up-down array on one side of the package supply conveying equipment along the extension direction of the rack, the outer side of the material falling chute is provided with a goods shelf, and the goods shelf is provided with a material receiving frame corresponding to the material falling chute, and the goods on the sorting trolley slide into the material receiving frame along the material falling chute. The structure is a terminal package supply structure, the sorting trolley can only move to the side of the package supply conveying equipment along the extension direction of the rack, which simplifies the overall structure of the equipment and reduces the cost.

[0034] As a preferred embodiment of the multi-layer track type intelligent sorting device, the package supply conveying equipment is located at the middle of the side of the rack along the extension direction of the rack, the rack is provided with a certain number of material falling chutes arranged in an up-down array on both sides of the package supply conveying equipment along the extension direction of the rack, the outer side of the material falling chute is provided with a goods shelf, and the goods shelf is provided with a material receiving frame corresponding to the material falling chute, and the goods on the sorting trolley slide into the material receiving frame along the material falling chute. The structure is a middle package supply structure (i.e. a non-terminal package supply structure), the sorting trolley can move to both sides of the package supply conveying equipment along the extension direction of the rack, which can relatively shorten the distance of single round trip of the sorting trolley between the package supply conveying equipment and the material falling chute, or relatively increase the number of material falling chutes, and greatly improve the sorting efficiency.

[0035] As a preferred embodiment of the multi-layer track type intelligent sorting device, the number of package supply conveying components on the package supply conveying equipment is one or more, and the number of corresponding package supply lifting equipment is one or more.

[0036] The application also provides a multi-layer track intelligent sorting device, which comprises a rack, a plurality of layers of tracks arranged in an up-down manner on the rack, a sorting trolley movably installed on each track, and a sorting driving assembly for moving the sorting trolley on the track; a package supply area is arranged on the side of the rack, and a package supply slot matched with the track is arranged on the rack at the position of the package supply area in an up-down manner; and a package supply assembly is arranged at each package supply slot. The package supply area can be manually loaded or loaded by a package supply device, the goods are delivered to the package supply assembly of the package supply slot, and then fall to the sorting trolley, and the sorting driving assembly controls the sorting trolley to move to a specified position.

[0037] As a preferred embodiment of the multi-layer track intelligent sorting device, the package supply assembly comprises a package supply chute and / or a package supply conveying vehicle, and the package supply assembly comprises only the package supply chute, or only the package supply conveying vehicle, or both the package supply chute and the package supply conveying vehicle.

[0038] As a preferred embodiment of the multi-layer track intelligent sorting device, the package supply conveying vehicle comprises a package supply conveying support, a pair of package rollers installed on the package supply conveying support, and a package supply conveying belt connected to the pair of package rollers. The goods are placed on the package supply chute, and the goods slide along the inclined surface of the package supply chute to the sorting trolley.

[0039] As a preferred embodiment of the multi-layer track intelligent sorting device, the package supply chute is arranged in a gradually downward inclined manner along the package supply direction. The goods are placed on the package supply conveying belt of the package supply conveying vehicle, the package rollers drive the package supply conveying belt to rotate, and the goods fall to the sorting trolley.

[0040] As a preferred embodiment of the multi-layer track intelligent sorting device, a switch device is arranged on the package supply chute. When the sorting trolley does not reach the package supply chute, the switch device is closed, so that the goods cannot slide off the package supply chute; only when the sorting trolley reaches the package supply chute, the switch device is opened, allowing the goods to slide off the package supply chute.

[0041] As a preferred embodiment of the multi-layer track intelligent sorting device, a light assembly is arranged at each package supply slot, and the light assembly can indicate the delivery state of the goods, such as a green light indicating that the goods can be delivered and a red light indicating that the goods cannot be delivered.

[0042] As a preferred embodiment of the multi-layer track intelligent sorting device, a scanner is arranged at one of the plurality of package supply slots, which is used for code scanning and identification of the goods to confirm the position to which the goods are to be sent.

[0043] As a preferred embodiment of the multi-layer track intelligent sorting device, a control panel is arranged on the rack at one side of the package supply area, and a detection grating is arranged at each package supply slot. An alarm is generally also provided, a scanner is used for scanning the goods, the control panel is used to display the working state of the device and to operate, and the alarm is used to alarm when an abnormality occurs.

[0044] As a preferred embodiment of the multi-layer track intelligent sorting device, the sorting trolley comprises a trolley frame, a pair of sorting rollers rotatably mounted on the trolley frame, and a sorting conveyor belt connected to the pair of sorting rollers. The bottom of the trolley frame is provided with a walking wheel. Side limiting stoppers (i.e. baffle plates) are respectively arranged on the trolley frame at both sides of the sorting conveyor belt. At least two stoppers are arranged on the sorting conveyor belt. The structure of the side limiting stoppers and the stoppers ensures that the goods will not accidentally fall off the sorting conveyor belt. The sorting rollers are driven by a motor or are electric rollers, thereby realizing the forward and reverse movement of the sorting conveyor belt.

[0045] As a preferred embodiment of the multi-layer track intelligent sorting device, lateral side wheels are arranged on both sides of the trolley frame, and vertical sections are arranged on both sides of the track to abut against the side wheels. The track can be two angle steels arranged opposite to each other. The walking wheel is arranged on the horizontal section, and the side wheels abut against the vertical sections to play a role in guiding the movement.

[0046] As a preferred embodiment of the multi-layer track intelligent sorting device, the sorting drive assembly comprises at least one set of synchronous belt drive assembly. The synchronous belt drive assembly comprises a pair of trolley synchronous pulleys rotatably mounted on the rack, a trolley synchronous belt connected between the pair of trolley synchronous pulleys, and a trolley servo motor connected in transmission with one of the trolley synchronous pulleys. The extension direction of the trolley synchronous belt is parallel to the extension direction of the track. The trolley frame of the sorting trolley is fixedly connected with the trolley synchronous belt. When the servo motor works, the trolley synchronous pulley and the synchronous belt rotate to horizontally move the sorting trolley to a specified position.

[0047] As a preferred embodiment of the multi-layer track intelligent sorting device, there are two sets of synchronous belt drive assemblies. Along a direction perpendicular to the translation direction of the sorting trolley, the two sets of synchronous belt drive assemblies are symmetrically connected on both sides of the trolley frame of the sorting trolley, so that the overall stress of the sorting trolley is more balanced, and the stability of the translation along the track is better.

[0048] As a preferred embodiment of the multi-layer track intelligent sorting device, the package supply area is located at the end of the side of the rack along the extension direction of the rack. A certain number of material falling chutes are arranged on one side of the rack at the package supply area in an up-down array. A goods shelf is arranged on the outer side of the material falling chute. An article receiving frame corresponding to the material falling chute is arranged on the goods shelf. The goods on the sorting trolley slide along the material falling chute into the article receiving frame. This structure is a terminal package supply structure. The sorting trolley can only move along the extension direction of the rack to the side of the package supply area. The overall structure of the equipment is simplified, and the cost is reduced.

[0049] As a preferred multi-layer track intelligent sorting device, the package supply area is located in the middle of the side edges of the rack in the extension direction of the rack, and a certain number of material falling grooves arranged in an up-down array are arranged on both sides of the package supply area, and shelves are arranged on the outer side of the material falling grooves, and the shelves are provided with material receiving frames corresponding to the material falling grooves, and the goods on the sorting trolley slide along the material falling grooves into the material receiving frames. The structure is a middle supply structure (i.e. a non-terminal supply structure), the sorting trolley can move along the extension direction of the rack towards both sides of the package supply area, which can relatively shorten the distance of single round trip of the sorting trolley between the package supply area and the material falling grooves, or relatively increase the number of material falling grooves, and greatly improve the sorting efficiency.

[0050] The application also provides a sorting trolley, which comprises a trolley frame, two parallel sorting rollers arranged on the trolley frame, and a sorting conveyor belt arranged between the two sorting rollers; the trolley frame further comprises two side limiting stop pieces, the side limiting stop pieces extend along the length direction of the sorting conveyor belt, the two side limiting stop pieces are arranged on both sides of the sorting conveyor belt along the width direction of the sorting conveyor belt, and first and second openings are respectively formed between the two side limiting stop pieces and the two ends of the sorting conveyor belt; and the sorting trolley further comprises a main limiting stop piece for blocking the materials placed on the sorting conveyor belt from passing through the first and / or second openings. By arranging the main limiting stop piece, a sorting trolley with the function of preventing materials from falling is provided, and on the basis of normally receiving and delivering materials, the materials will not fall from the sorting trolley, thereby greatly improving the sorting efficiency.

[0051] As a preferred sorting trolley, the main limiting stop piece is arranged on the sorting conveyor belt. At this time, the main limiting stop piece comprises a plurality of limiting bars arranged at intervals along the length direction of the sorting conveyor belt.

[0052] As a preferred sorting trolley, the main limiting stop piece is arranged on the trolley frame. At this time, the main limiting stop piece comprises two blocking units, the two blocking units are arranged at the first and second openings respectively, each blocking unit comprises a limiting gate and a stop piece driving source, and the stop piece driving source is used to drive the limiting gate to approach or move away from the first or second opening.

[0053] As a preferred sorting trolley, the stop piece driving source is a linear displacement stop piece driving source or a rotary stop piece driving source.

[0054] As a preferred sorting trolley, each blocking unit comprises two limiting gates and two stop piece driving sources.

[0055] As a preferred sorting trolley, a plurality of walking wheels are further arranged on the trolley frame.

[0056] The application further provides a sorting trolley, which comprises a trolley frame, a pair of sorting rollers rotatably mounted on the trolley frame, a sorting conveying belt connected to the outer periphery of the pair of sorting rollers, a pair of side limiting stop pieces distributed on both sides of the sorting conveying belt in a direction perpendicular to the conveying direction of the sorting conveying belt, a pair of main limiting stop pieces distributed at both ends of the sorting conveying belt in the conveying direction of the sorting conveying belt, and a lifting driving source and a lifting transmission unit both mounted on the trolley frame, wherein the pair of side limiting stop pieces and the pair of main limiting stop pieces are both mounted on the trolley frame, the pair of main limiting stop pieces are both mounted on the trolley frame in a lifting manner, and the lifting driving source is in transmission connection with the pair of main limiting stop pieces through the lifting transmission unit and drives the pair of main limiting stop pieces to synchronously lift. The application uses one lifting driving source to drive two main limiting stop pieces to simultaneously and synchronously lift, thereby achieving the purpose of reducing cost. In addition, the movement mode of the main limiting stop pieces in the application is lifting, i.e. translation in the up-down direction, which reduces the requirement for the space above the main limiting stop pieces compared with the up-down overturning movement mode in the prior art, so that the sorting trolley can be better assembled in the sorting system.

[0057] As a preferred sorting trolley, the lifting driving source is a motor, the lifting transmission unit comprises a first transmission assembly in transmission connection with the motor shaft of the lifting driving source and a second transmission assembly in transmission connection with each main limiting stop piece, and the two second transmission assemblies are in transmission connection with the first transmission assembly.

[0058] As a preferred sorting trolley, the second transmission assembly comprises a transmission rotating shaft rotatably supported in the trolley frame, the first transmission assembly is distributed on the outer side of one side limiting stop piece, the first transmission assembly comprises a first driving pulley fixed on the motor shaft of the lifting driving source, a first driven pulley fixed on the transmission rotating shaft of each second transmission assembly, and a first synchronous belt connected to the outer periphery of the first driving pulley and the two first driven pulleys.

[0059] As a preferred sorting trolley, the first transmission assembly further comprises a motor mounting frame, a tensioning adjusting groove opened in the motor mounting frame, and a tensioning adjusting bolt threaded in the tensioning adjusting groove, the lifting driving source is fixed on the motor mounting frame, the motor mounting frame is locked on the trolley frame through the tensioning adjusting bolt, and the tensioning adjusting groove is a waist-shaped groove.

[0060] As a preferred sorting trolley, the first transmission assembly further comprises two idlers both rotatably mounted on the trolley frame, the two idlers are distributed on both sides of the first driving pulley and abut against the outer side of the first synchronous belt.

[0061] As the preferred sorting trolley, each group of the second transmission assembly comprises two transmission lead screws distributed at both ends of the main limiting stop, a transmission nut connected with the transmission lead screw, a second driven pulley fixed on each transmission lead screw, and a second synchronous belt, the two transmission lead screws are vertically arranged and rotatably installed on the trolley frame, one of the transmission lead screws is connected with the first transmission assembly, and the second synchronous belt is connected on the outer periphery of the two second driven pulleys in the second transmission assembly, and the transmission nut is connected with the main limiting stop.

[0062] As the preferred sorting trolley, a matching gap is arranged between the transmission nut and the main limiting stop, a connecting bolt is fixed on the transmission nut, and the connecting bolt is assembled in the main limiting stop through a thrust bearing.

[0063] As the preferred sorting trolley, the side limiting stop and the main limiting stop are both plate components, and the main limiting stop covers the area between the pair of side limiting stops along the distribution direction of the pair of side limiting stops.

[0064] The application also provides a package conveying device, which comprises a package conveying seat and a plurality of groups of package conveying assemblies installed on the package conveying seat, each group of the package conveying assembly comprises a package driving source installed on the package conveying seat, a driving roller and a driven roller rotatably installed on the package conveying seat, and a package conveying belt connected on the outer periphery of the driving roller and the driven roller, the package driving source is in transmission connection with the driving roller, and the package driving sources in the plurality of groups of the package conveying assembly are independent of each other; along the conveying direction of the package conveying belt, the plurality of groups of the package conveying assembly are sequentially connected and arranged in a stepped distribution from high to low, and the adjacent two groups of the package conveying assembly are arranged in close proximity. In the application, the plurality of groups of the package conveying assembly are driven by independent package driving sources, so that the conveying speed of the package conveying belt of each group of the package conveying assembly is independently controlled, thereby better controlling the buffering of the sorted objects on the plurality of groups of the package conveying assembly and avoiding excessive accumulation of the sorted objects at the front end of the package conveying device, thereby improving the efficiency of the device. Meanwhile, the plurality of groups of the package conveying assembly are arranged in a stepped distribution, the height of the plurality of groups of the package conveying assembly decreases from back to front, that is, the adjacent two groups of the package conveying assembly are vertically staggered, which can better enable the adjacent two groups of the package conveying assembly to be arranged in close proximity, reduce the gap between the adjacent two groups of the package conveying assembly, and avoid dropping. In addition, the stepped structure of the plurality of groups of the package conveying assembly from high to low can also avoid the jumping phenomenon of the light sorted objects.

[0065] As the preferred package conveying device, each group of the package conveying assembly further comprises a detection unit installed on the package conveying seat, and the detection unit is used for detecting whether there is an object passing through the package conveying belt of the group of the package conveying assembly.

[0066] As the preferred embodiment of the bag conveying device, the bag feeding frame comprises a frame and a pair of frame baffles fixed on the upper end of the frame, the frame baffles are oppositely arranged on both sides of the bag conveying belt of the bag conveying assembly and are higher than the bag conveying belt of the bag conveying assembly in the direction perpendicular to the conveying direction of the bag conveying belt; the detection unit comprises a grating sensor fixed on the outer side of the frame baffle and a detection opening part opened in the frame baffle, and the detection opening part allows the grating sensor to be exposed.

[0067] As the preferred embodiment of the bag conveying device, the bottom of the detection opening part is flush with the top of the bag conveying belt in each bag conveying assembly.

[0068] As the preferred embodiment of the bag conveying device, the head end of the frame baffle is provided with a material taking avoiding area in the conveying direction of the bag conveying belt.

[0069] As the preferred embodiment of the bag conveying device, the bag feeding driving source is a motor and is arranged in a staggered manner with the driving roller, and each bag conveying assembly further comprises a transmission unit, and the bag feeding driving source is connected with the driving roller through the transmission unit.

[0070] As the preferred embodiment of the bag conveying device, the transmission unit comprises a second driving pulley fixed on the motor shaft of the bag feeding driving source, a third driven pulley fixed on the end of the driving roller, and a transmission belt connected on the outer periphery of the second driving pulley and the third driven pulley.

[0071] As the preferred embodiment of the bag conveying device, each bag conveying assembly further comprises an adjusting unit, the adjusting unit comprises an adjusting long slot opened in the bag feeding frame, an adjusting plate fixed on the bag feeding frame, and an adjusting screw rotatably arranged in the adjusting plate, the adjusting long slot and the adjusting screw extend straight in the conveying direction of the bag conveying belt; the driven roller comprises a roller shaft and a roller rotatably arranged on the outer periphery of the roller shaft, and the two ends of the roller shaft are clamped in the adjusting long slot and are threadedly connected with the adjusting screw.

[0072] The application also provides a package conveying device, which comprises a package conveying frame provided with a conveying assembly mounting area, and a plurality of package conveying assemblies mounted in the conveying assembly mounting area, the package conveying assemblies are arranged in groups and arranged in front of and behind each other along the conveying direction, each group of the package conveying assemblies comprises a package driving source, a pair of package rollers arranged side by side in front of and behind each other along the conveying direction, and a package conveying belt connected to the outer periphery of the pair of package rollers, the package rollers are rotatably supported in the package conveying frame and are in transmission connection with the package driving source, a triangular area is formed between two adjacent groups of the package conveying assemblies, and the diameter of the package rollers is not greater than 40 mm. The package conveying belt has a conveying plane for horizontally conveying the sorted objects in the forward direction by supporting the pair of package rollers on the upper end of the package conveying belt. In particular, the diameter of the package rollers is not greater than 40 mm, so that the size of the triangular area formed between the two adjacent groups of the package conveying assemblies can be greatly reduced, the connection between the two adjacent groups of the package conveying assemblies is more gentle, the sorted objects with small size can be effectively prevented from being stuck in the triangular area, the sorted objects conveyed by the latter group of the package conveying assemblies can be smoothly transferred to the former group of the package conveying assemblies, the probability of dropping is greatly reduced, and the reliability and accuracy of the sorting of the sorted objects are finally ensured.

[0073] As a preferred package conveying device, the diameter of the package rollers is 28-32 mm.

[0074] As a preferred package conveying device, the package driving source is a motor, each group of the package conveying assemblies further comprises a transmission roller rotatably supported in the package conveying frame, a first pulley fixed to the motor shaft of the package driving source, a second pulley fixed to the transmission roller, and a pulley transmission synchronous belt connected between the first pulley and the second pulley, the transmission roller is in contact with the inner periphery of the package conveying belt and is arranged below the pair of package rollers, and the diameter of the transmission roller is greater than that of the package rollers.

[0075] As a preferred package conveying device, a motor mounting area is formed between one of the pair of package rollers and the transmission roller on the outer periphery side of the package conveying belt, the package driving source is located in the motor mounting area and is fixed to the package conveying frame.

[0076] As a preferred package conveying device, each group of the package conveying assemblies further comprises a tensioning adjusting roller and a tensioning adjusting assembly, the tensioning adjusting roller comprises a roller shaft part and a tensioning cylinder part rotatably mounted on the roller shaft part, the tensioning cylinder part is in contact with the outer periphery of the package conveying belt, and the roller shaft part is movably mounted on the package conveying frame through the tensioning adjusting assembly.

[0077] As the preferred embodiment of the bag conveying device, the outer circumferential surface of the bag conveying belt is provided with at least one circumferentially extending limiting protrusion; when there are a plurality of limiting protrusions, the plurality of limiting protrusions are arranged side by side in the direction perpendicular to the conveying direction of the bag conveying assembly.

[0078] As the preferred embodiment of the bag conveying device, the bag seat is provided with a plurality of conveying assembly mounting areas, and a plurality of bag conveying assemblies are arranged side by side in the direction perpendicular to the conveying direction of the bag conveying assembly in each conveying assembly mounting area.

[0079] The application further provides a material falling mechanism, which comprises a chute bottom plate fixed on the rack, the chute bottom plate comprising a first side edge close to the sorting trolley and a second side edge away from the sorting trolley, the height of the first side edge being greater than the height of the second side edge, and a flexible blocking piece being arranged on the first side edge. By arranging the flexible blocking piece on the side of the chute bottom plate close to the sorting trolley, the distance between the chute bottom plate and the sorting trolley is shortened, thereby preventing the falling of the material and ensuring the efficient operation of the sorting device. Moreover, the flexible blocking piece itself has a certain bearing capacity, and when the sorted material falls on the flexible blocking piece, the bearing capacity of the flexible blocking piece can ensure the sorted material to enter the chute bottom plate, thereby ensuring the smooth completion of the material falling.

[0080] As the preferred embodiment of the material falling mechanism, the height of the sorting trolley is greater than the height of the first side edge when the sorting trolley needs to unload the material carried by itself onto the chute bottom plate.

[0081] As the preferred embodiment of the material falling mechanism, a plurality of partitions are arranged on the upper surface of the chute bottom plate, and a material falling chute is formed between each two adjacent partitions and the chute bottom plate, and the sorting trolley unloads the material carried by itself into the designated material falling chute.

[0082] As the preferred embodiment of the material falling mechanism, the flexible blocking piece comprises a plurality of flexible pads.

[0083] As the preferred embodiment of the material falling mechanism, the flexible blocking piece comprises a plurality of flexible strips, and the plurality of flexible strips are arranged on the first side edge in a spaced manner.

[0084] As the preferred blanking mechanism, the chute bottom plate comprises a main plate body and a bent part connected in L shape, the main plate body comprises the first side edge and the second side edge, and the first side edge is connected with the bent part; a plurality of through holes are arranged at the connection part of the main plate body and the bent part; a pressing plate is arranged below the main plate body, the pressing plate comprises a first plate body and a second plate body connected in L shape, a plurality of groups of perforations are arranged on the first plate body, each group of perforations comprises a first perforation and a second perforation arranged along the width direction of the first plate body; one end of the flexible strip sequentially passes through the through hole, the second perforation and the first perforation to form a U-shaped part; and the second plate body is detachably connected with the bent part.

[0085] As the preferred blanking mechanism, a connecting hole is arranged on the second plate body, a locking long hole is arranged on the bent part, and the connecting hole and the locking long hole are connected through a fastener.

[0086] As the preferred blanking mechanism, a plurality of reinforcing ribs are arranged at the bottom of the main plate body.

[0087] As the preferred blanking mechanism, the flexible blocking piece is made of silica gel or rubber.

[0088] The utility model further provides a kind of sorting drive assembly, including first component, second component and track;The first component includes first sorting trolley and first translation drive unit, and the first sorting trolley is movably installed on the track by the first translation drive unit;The second component includes second sorting trolley and second translation drive unit, and the second sorting trolley is movably installed on the track by the second translation drive unit;Along the extension direction of the track, the non-end position of the track is equipped with the work station for the first sorting trolley and second sorting trolley to pick up, and the work station is distributed on the movement stroke of the first sorting trolley along the track and the movement stroke of the second sorting trolley along the track, so that the movement stroke of the first sorting trolley and the movement stroke of the second sorting trolley have coincident section at the work station. After being thus arranged, realize middle package supply, and greatly improve sorting efficiency;And the two translation drive units for driving the movement of two sorting trolleys do not interfere with each other, and the overall structure is simple and stable.

[0089] As the preferred sorting drive assembly, the work station is arranged at the middle of the track.

[0090] As a preferred form of the sorting driving assembly, the tracks are horizontal tracks, and two tracks are provided, the two tracks are parallel to each other and oppositely arranged along the horizontal width direction of the tracks, and the first and second translation driving units are arranged between the two tracks.

[0091] As a preferred form of the sorting driving assembly, along the horizontal width direction of the tracks, the first translation driving unit includes two first translation driving assemblies symmetrically distributed with respect to the first sorting trolley and connected to the first sorting trolley, and the second translation driving unit includes two second translation driving assemblies symmetrically distributed with respect to the second sorting trolley and connected to the second sorting trolley, and the two second translation driving assemblies are arranged between the two first translation driving assemblies, or the two first translation driving assemblies and the two second translation driving assemblies are staggered.

[0092] As a preferred form of the sorting driving assembly, along the horizontal width direction of the tracks, the first translation driving unit includes two first translation driving assemblies symmetrically distributed with respect to the first sorting trolley and connected to the first sorting trolley, and the second translation driving unit includes one second translation driving assembly centrally distributed with respect to the second sorting trolley and connected to the second sorting trolley, and the second translation driving assembly is arranged between the two first translation driving assemblies.

[0093] As a preferred form of the sorting driving assembly, the first translation driving unit includes one first translation driving assembly connected to the first sorting trolley, and the second translation driving unit includes one second translation driving assembly connected to the second sorting trolley, and the first and second translation driving assemblies are arranged in a spaced manner along the horizontal width direction of the tracks.

[0094] As a preferred form of the sorting driving assembly, the first translation driving unit includes one first translation driving assembly connected to the first sorting trolley, and the second translation driving unit includes one second translation driving assembly connected to the second sorting trolley, and along the horizontal width direction of the tracks, the first and second translation driving assemblies are arranged on the same side or different sides of the tracks.

[0095] As a preferred sorting drive assembly, the first assembly comprises a first translation drive source, the first translation transmission unit comprises a first translation driving wheel and a first translation driven wheel, the first translation driving wheel rotates under the drive of the first translation drive source, and the first translation transmission assembly is arranged between the first translation driving wheel and the first translation driven wheel; the second assembly comprises a second translation drive source, the second translation transmission unit comprises a second translation driving wheel and a second translation driven wheel, the second translation driving wheel rotates under the drive of the second translation drive source, and the second translation transmission assembly is arranged between the second translation driving wheel and the second translation driven wheel.

[0096] As a preferred sorting drive assembly, the wheel axes of the first translation driving wheel, the first translation driven wheel, the second translation driving wheel and the second translation driven wheel all extend along the horizontal width direction of the track; the first translation transmission assembly and the second translation transmission assembly are respectively a rack, a rope, a belt or a chain. BRIEF DESCRIPTION OF DRAWINGS

[0097] Fig. 1 is a perspective view of a first embodiment of the multi-layer track intelligent sorting device of the present application;

[0098] Fig. 2 is a top view of Fig. 1;

[0099] Fig. 3 is a perspective view of Fig. 1 with the hidden shelves and the receiving frame;

[0100] Fig. 4 is a perspective view of a first embodiment of the sorting trolley of Fig. 1;

[0101] Fig. 5 is a sectional view of Fig. 4;

[0102] Fig. 6 is a perspective view of a second embodiment of the sorting trolley of Fig. 1;

[0103] Fig. 7 is a perspective view of a third embodiment of the sorting trolley of Fig. 1;

[0104] Fig. 8 is an enlarged view of circle A of Fig. 7;

[0105] Fig. 9 is an enlarged view of circle B of Fig. 7;

[0106] Fig. 10 is a top view of Fig. 7;

[0107] Fig. 11 is a side view of Fig. 7;

[0108] Fig. 12 is a perspective view of a first embodiment of the package conveying device of Fig. 1;

[0109] Fig. 13 is a front view of a plurality of package conveying assemblies of Fig. 12;

[0110] Fig. 14 is a perspective view of a second embodiment of the package conveying device of Fig. 1;

[0111] Fig. 15 is a perspective view of two groups of bag conveying assemblies assembled in a conveying assembly mounting area in Fig. 14;

[0112] Fig. 16 is a perspective view of Fig. 15 from another angle;

[0113] Fig. 17 is a perspective view of Fig. 16 with the base baffle, bag feeding drive source, first pulley and pulley transmission synchronous belt omitted;

[0114] Fig. 18 is a structural schematic view of the abutment of two adjacent groups of bag conveying assemblies in Fig. 14;

[0115] Fig. 19 is a perspective view of the bag lifting device embodiment one in Fig. 1;

[0116] Fig. 20 is a side view of Fig. 19;

[0117] Fig. 21 is a perspective view of the bag lifting device embodiment two in Fig. 1;

[0118] Fig. 22 is a side view of Fig. 21;

[0119] Fig. 23 is a perspective view of the blanking mechanism in Fig. 1;

[0120] Fig. 24 is a side view of Fig. 23;

[0121] Fig. 25 is an enlarged view of C circle in Fig. 24;

[0122] Fig. 26 is a structural schematic view of the connection of the flexible baffle, pressing plate and sliding groove bottom plate in Fig. 23;

[0123] Fig. 27 is a perspective view of the sliding groove bottom plate in Fig. 23;

[0124] Fig. 28 is an enlarged view of D circle in Fig. 27;

[0125] Fig. 29 is a perspective view of the pressing plate in Fig. 23;

[0126] Fig. 30 is a perspective view of the flexible strip in Fig. 23;

[0127] Fig. 31 is a perspective view of the track, sorting trolley and sorting drive assembly in Fig. 1;

[0128] Fig. 32 is a perspective view of the multi-layer track type intelligent sorting device embodiment two;

[0129] Fig. 33 is a perspective view of the multi-layer track type intelligent sorting device embodiment three;

[0130] Fig. 34 is a perspective view of one setting mode of the track, sorting trolley and sorting drive assembly in Fig. 33;

[0131] Fig. 35 is a top view of Fig. 34;

[0132] Fig. 36 is a perspective view of another arrangement of the track, sorting trolley and sorting drive assembly in Fig. 33;

[0133] Fig. 37 is a perspective view of a fourth embodiment of the multi-layer track intelligent sorting device of the present application;

[0134] Fig. 38 is a perspective view of a fifth embodiment of the multi-layer track intelligent sorting device of the present application;

[0135] Fig. 39 is a top view of Fig. 38;

[0136] Fig. 40 is a perspective view of Fig. 38 with the hidden shelves and receiving frame;

[0137] Fig. 41 is a perspective view of the track, sorting trolley, sorting drive assembly 70 and package delivery vehicle in Fig. 38;

[0138] Fig. 42 is a perspective view of a sixth embodiment of the multi-layer track intelligent sorting device of the present application;

[0139] Fig. 43 is a perspective view of the track, sorting trolley, sorting drive assembly 70 and package delivery chute in Fig. 42;

[0140] Fig. 44 is a perspective view of an eighth embodiment of the multi-layer track intelligent sorting device of the present application. DETAILED DESCRIPTION

[0141] The advantages and effects of the present application can be easily understood by those skilled in the art from the content disclosed in the present specification.

[0142] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of the present specification are merely used to facilitate understanding and reading by those skilled in the art in connection with the content disclosed in the present specification, and are not intended to limit the conditions under which the present application can be implemented, and therefore do not have technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are merely for the convenience of clear description, and are not intended to limit the scope of the present application, and the change or adjustment of the relative relationship, without substantially changing the technical content, should also be considered as the scope of the present application.

[0143] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element through a middle element.

[0144] In addition, the descriptions involving "first", "second" and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the fact that the technical solutions can be realized by those skilled in the art. When the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0145] The present application provides a multi-layer track intelligent sorting device, which will be further described below with reference to the accompanying drawings.

[0146] Multi-layer track intelligent sorting device embodiment one

[0147] As shown in FIGS. 1-3, the multi-layer track intelligent sorting device embodiment one includes a rack 10, a plurality of layers of tracks 12 arranged in an up-down manner are arranged on the rack 10, a sorting trolley 20 movably mounted on each track 12, a sorting drive assembly 70 for moving the sorting trolley 20 on the track 12, and a feeding unit. For ease of description, the extension direction (i.e. length direction) of the track 12 in FIGS. 1-3 is defined as the left-right direction. In the view shown in FIG. 2, the lower side and the upper side of the paper are the left direction and the right direction respectively, and the left side and the right side of the paper are the front direction and the rear direction respectively. Therefore, the movement mode of the sorting trolley 20 on the track 12 is left-right translation, and the track 12 is an up-down multi-layer structure, and the number of sorting trolleys 20 mounted on each layer of tracks 12 is also an up-down multi-layer structure. The side edge of the rack 10 is provided with a feeding area 11, and the feeding unit is arranged in the feeding area 11 and supplies sorted objects to each layer of sorting trolleys 20. The sorted objects are goods and materials such as lipsticks, clothes, luggage, etc. In this embodiment, along the front-rear direction perpendicular to the left-right translation of the sorting trolley 20, the feeding area 11 is arranged at the rear side edge of the rack 10.

[0148] When the multi-layer track intelligent sorting device performs sorting operation, the worker puts the goods into the feeding unit, the feeding unit supplies the goods on it to the sorting trolley 20 corresponding to the target layer, the sorting drive assembly 70 controls the sorting trolley 20 to move to the designated position in the left-right direction along the track 12 where it is located, and then the goods are unloaded. The present application can effectively improve the efficiency of secondary sorting of goods, and relatively simplify the structure of the multi-layer track intelligent sorting device, reduce its cost, make it easy to maintain, and the operation is simple, the sorting accuracy is high, and the compatibility of goods size is high. At the same time, the present application also reduces the investment of secondary sorting links of goods, reduces the labor input and improves the sorting accuracy.

[0149] Further, the sorting trolley 20 for the multi-layer track type intelligent sorting device has various preferred embodiments.

[0150] Embodiment one of the sorting trolley 20

[0151] As shown in FIG. 4 and FIG. 5, the sorting trolley 20 comprises a trolley frame 21, a pair of sorting rollers 22 rotatably mounted on the front and rear ends of the trolley frame 21, and a sorting conveyor belt 23 connected to the front and rear sorting rollers 22. The front and rear sides of the bottom of the trolley frame 21 are provided with traveling wheels 211 which are matched with the track 12. The sorting rollers 22 are driven to rotate by a conveying driving source (such as a motor), or the sorting rollers 22 are electric rollers, so as to realize the forward and reverse movement of the sorting conveyor belt 23 and realize the unloading of the sorting trolley 20 to the front or rear side (i.e. the following material chute 61).

[0152] Preferably, as shown in FIG. 4 and FIG. 5, the sorting trolley 20 further comprises a pair of side limiting stop pieces 24, which are fixed to the trolley frame 21 and distributed on the left and right sides of the sorting conveyor belt 23 in a direction perpendicular to the conveying direction of the sorting conveyor belt 23. The side limiting stop pieces 24 are in the form of a baffle. In addition, the sorting conveyor belt 23 is provided with at least two limiting strips 25, each of which extends left and right, and several limiting strips 25 are arranged at intervals along the rotation direction (i.e. the conveying direction) of the sorting conveyor belt 23. The structure of the side limiting stop pieces 24 and the limiting strips 25 ensures that the goods will not accidentally fall off the sorting conveyor belt 23. The specific cross-sectional shape of the limiting strips 25 is not limited and can be in the form of a strip, a plate, a block, a column or an irregular shape, etc.

[0153] Preferably, as shown in FIG. 4 and FIG. 5, the front and rear sides of the trolley frame 21 are provided with transverse side wheels 212, i.e. the wheel axes of the side wheels 212 extend vertically. The track 12 is provided with vertical sections which are abutted by the side wheels 212. The track 12 can be two angle steels arranged oppositely, the traveling wheels 211 are arranged on the horizontal sections of the track 12, and the side wheels 212 are abutted by the vertical sections of the track 12, which play a role in motion guidance.

[0154] Embodiment two of the sorting trolley 20

[0155] As shown in FIG. 6, the sorting trolley 20 embodiment two is based on the above-mentioned sorting trolley 20 embodiment one, and a pair of main limiting stop pieces 26 are additionally arranged. The pair of main limiting stop pieces 26 are distributed at the front and rear ends of the sorting conveying belt 23 along the conveying direction of the sorting conveying belt 23, and are both installed on the trolley frame 21. The pair of side limiting stop pieces 24 are both fixed on the trolley frame 10 and are both higher than the sorting conveying belt 23. The pair of side limiting stop pieces 24 and the sorting conveying belt 23 form an inlet and an outlet at the front and rear ends of the sorting conveying belt 23. The inlet and outlet on the front side are defined as the first opening 231, and the inlet and outlet on the rear side are defined as the second opening 232. The first opening 231 and the second opening 232 both allow the goods to pass through. The pair of main limiting stop pieces 26 are respectively arranged at the first opening 231 and the second opening 232. The main limiting stop piece 26 on the front side can move towards or away from the first opening 231 to close or open the first opening 231. The main limiting stop piece 26 on the rear side can move towards or away from the second opening 232 to close or open the second opening 232. In this way, during the conveying of the goods, the pair of main limiting stop pieces 26 close the first opening 231 and the second opening 232, the front and rear movements of the goods are blocked by the pair of main limiting stop pieces 26, and the goods cannot fall down through the first opening 231 or the second opening 232, thereby playing a role of preventing the goods from falling.

[0156] Preferably, the main limiting stop piece 26 has various movement modes, such as up and down, up and down rotation, forward and backward rotation, etc. The main limiting stop piece 26 can be an integral stop plate or two left and right stop plates. In the embodiment shown in FIG. 6, each main limiting stop piece 26 includes two left and right limiting gates 261. The sorting trolley 20 further includes a stop piece driving source 27 in transmission connection with each gate 261. The stop piece driving source 27 is fixed on the trolley frame 21 and can be a cylinder, a motor, an electromagnet, etc. The stop piece driving source 27 drives the limiting gate 261 connected thereto to move up and down, or rotate up and down, or rotate forward and backward. When the stop piece driving source 27 drives the limiting gate 261 to move to open the first opening 231 or the second opening 232, the goods are allowed to enter or move out of the sorting trolley 20. When the stop piece driving source 27 drives the limiting gate 261 to move to close the first opening 231 or the second opening 232, the goods on the sorting trolley 20 are prevented from falling, thereby playing a role of preventing the goods from falling. In the embodiment shown in FIG. 6, the movement mode of the limiting gate 261 is rotation.

[0157] In addition, in the sorting trolley 20 embodiment two, the sorting conveying belt 23 can be provided with the stop strip 25 in the sorting trolley 20 embodiment one, or can not be provided with the stop strip 25 as shown in FIG. 6. When the sorting conveying belt 23 is provided with the stop strip 25, the stop strip 25 can be considered as a main limiting stop piece 26 fixed on the sorting conveying belt 23.

[0158] Sorting trolley 20 embodiment three

[0159] The third embodiment of the sorting trolley 20 differs from the second embodiment of the sorting trolley 20 in that the specific structure of the main limiting stop 26 is different. As shown in FIG. 7, in the third embodiment of the sorting trolley 20, as shown in FIGS. 7, 10 and 11, the sorting trolley 20 further comprises a lifting driving source and a lifting transmission unit, both of which are mounted on the trolley frame 10, both of the pair of main limiting stops 26 are a whole blocking plate structure, both of the pair of main limiting stops 26 are installed on the trolley frame 10 in a lifting manner, the lifting driving source is in transmission connection with the pair of main limiting stops 26 through the lifting transmission unit and drives the pair of main limiting stops 26 to synchronously lift. When the sorting trolley 20 moves to the package unit to take the articles, and when the sorting trolley 20 moves to the following material drop chute 61 to unload the articles, the lifting driving source drives the front and rear two main limiting stops 26 to simultaneously and synchronously move up through the lifting transmission unit, the main limiting stop 26 is away from the inlet and outlet, and then the main limiting stop 26 does not play a blocking role, and then the articles are moved into the sorting conveyor belt 23 through the inlet and outlet, or the articles are moved out of the sorting conveyor belt 23 through the inlet and outlet. When the sorting trolley 20 carrying the articles is in motion, the lifting driving source drives the front and rear two main limiting stops 26 to simultaneously and synchronously move down through the lifting transmission unit until the main limiting stop 26 is blocked on the outside of the inlet and outlet, and then the main limiting stop 26 plays a blocking role to prevent the articles on the sorting conveyor belt 23 from falling off the inlet and outlet, and better plays a role of preventing the articles from falling off. The present application uses one lifting driving source to drive two main limiting stops 26 to simultaneously and synchronously lift, which achieves the purpose of reducing cost; and in the present application, the movement mode of the main limiting stop 26 is lifting, i.e. translation in the up-down direction, which, compared with the up-down rotation movement mode, reduces the requirement for the space above the main limiting stop 26, so that the sorting trolley 20 can be better assembled in the multi-layer track type intelligent sorting device.

[0160] Further, as shown in FIGS. 7, 10 and 11, the conveying driving source 213 that drives the sorting conveyor belt 23 to rotate is fixed on the outer side of the left side limiting stop 24 in the sorting trolley 20, the conveying driving source 213 is in transmission connection with the pair of sorting rollers 22 through a conveying transmission assembly, and the conveying transmission assembly can be a synchronous belt pulley assembly.

[0161] Further, as shown in FIGS. 7 and 10, the lifting driving source is a motor, the lifting transmission unit comprises a first transmission assembly 28 in transmission connection with the motor shaft of the lifting driving source, and a second transmission assembly 29 in transmission connection with each main limiting stop 26, and both groups of second transmission assemblies 29 are in transmission connection with the first transmission assembly 28. The first transmission assembly 28 can adopt a gear and rack assembly, a chain wheel and chain assembly, or a synchronous belt pulley assembly, and the second transmission assembly 29 can adopt a screw and nut assembly, a ball screw assembly, or a worm and gear assembly.

[0162] The preferred structure of the first transmission assembly 28 is as follows: as shown in FIGS. 7, 8 and 10, the first transmission assembly 28 is distributed on the outer side of the right side limiting stopper 24, and the second transmission assembly 29 comprises a transmission rotating shaft 291 rotatably supported in the vehicle frame 10; the first transmission assembly 28 comprises a first driving pulley 281 fixed on the motor shaft of the lifting driving source, a first driven pulley 282 fixed on the transmission rotating shaft 291 in each second transmission assembly 29, and a first synchronous belt 283 connected to the outer periphery of the first driving pulley 281 and the two first driven pulleys 282. In this way, when the lifting driving source drives the first driving pulley 281 to rotate, the transmission rotating shafts 291 in the front and rear two groups of second transmission assemblies 29 are simultaneously and synchronously driven to rotate through the front and rear two first driven pulleys 282 and the first synchronous belt 283, thereby driving the front and rear two groups of second transmission assemblies 29 to synchronously operate, and realizing the synchronous upward movement or downward movement of the front and rear two main limiting stoppers 26.

[0163] Further, as shown in FIGS. 7, 8 and 10, the first transmission assembly 28 further comprises a motor mounting bracket 284, a tensioning adjusting groove 285 opened in the motor mounting bracket 284, and a tensioning adjusting bolt threaded in the tensioning adjusting groove 285, the lifting driving source is fixed to the motor mounting bracket 284, the motor mounting bracket 284 is locked on the vehicle frame 10 through the tensioning adjusting bolt, and the tensioning adjusting groove 285 is a waist-shaped groove extending straightly leftward and rightward. In this way, after the tensioning adjusting bolt is loosened, the leftward and rightward positions of the motor mounting bracket 284 can be adjusted, i.e. the leftward and rightward positions of the lifting driving source and the first driving pulley 281 are adjusted, and the first synchronous belt 283 is tensioned and adjusted; after the adjustment is completed, the tensioning adjusting bolt is tightened. Preferably, the first transmission assembly 28 further comprises two idlers 286 rotatably mounted on the vehicle frame 10, the two idlers 286 are distributed on the front and rear sides of the first driving pulley 281 and abut against the outer side of the first synchronous belt 283. The arrangement of the idlers 286 can make the left and right two parts of the first synchronous belt 283 extending frontward and rearward in a parallel state.

[0164] The preferred structure of the second transmission assembly 29 is as follows: as shown in FIGS. 7, 9 and 11, each of the second transmission assemblies 29 includes two transmission lead screws 292 distributed at the left and right ends of the main limiting stop 26, a transmission nut 293 connected with the transmission lead screws 292, a second driven pulley 294 fixed at the lower end of each transmission lead screw 292, and a second synchronous belt 295, both of the transmission lead screws 292 are vertically arranged and rotatably installed on the frame 10 through a bearing seat, the right transmission lead screw 292 close to the first transmission assembly 28 constitutes the transmission rotating shaft 291, then the right transmission lead screw 292 is connected with the first transmission assembly 28, i.e. the upper end of the right transmission lead screw 292 is fixed with the first driven pulley 282; the second synchronous belt 295 is connected with the outer periphery of the left and right second driven pulleys 294 in the second transmission assembly 29, and the transmission nut 293 is connected with the main limiting stop 26. In this way, the lifting driving source drives the right transmission lead screws 292 in the front and rear second transmission assemblies 29 to rotate simultaneously and synchronously through the first transmission assembly 28, the right transmission lead screws 292 drive the left transmission lead screws 292 to rotate simultaneously and synchronously through the second driven pulleys 294 and the second synchronous belt 295, and then the transmission nut 293 drives the synchronous upward or downward movement of the front and rear main limiting stops 26.

[0165] Further, as shown in FIG. 9, a matching gap 296 is provided between the transmission nut 293 and the main limiting stop 26, the transmission nut 293 is fixed with a front and rear extending connecting bolt 297, and the connecting bolt 297 is assembled in the main limiting stop 26 through a thrust bearing. The thrust bearing and the matching gap 296 allow the main limiting stop 26 to have a certain amount of front and rear floating relative to the transmission nut 293, thereby eliminating the deviation and avoiding the stuck phenomenon under the premise of ensuring the synchronization.

[0166] Further, as shown in FIG. 1 to FIG. 3, in the first embodiment of the multi-layer track intelligent sorting device, the package feeding unit comprises a package feeding conveyor 30 (also referred to as a package feeding table) and a package feeding lifting device 40. The package feeding conveyor 30 comprises a package feeding base 31 and a package feeding conveying assembly 32 arranged on the package feeding base 31. The package feeding lifting device 40 is connected between the package feeding conveyor 30 and the sorting trolleys 20 of each layer. The package feeding lifting device 40 has a lifting conveying trolley 45 that can move up and down. The package feeding lifting device 40 is used to transfer the goods output by the package feeding conveying assembly 32 to the sorting trolley 20 of the target layer. Therefore, the package feeding conveyor 30 is arranged at the rear side of the rack 10. In this way, when the multi-layer track intelligent sorting device is sorting, the worker delivers the goods to the package feeding conveying assembly 32 of the package feeding conveyor 30. The package feeding conveying assembly 32 forwards the goods to the lifting conveying trolley 45 of the package feeding lifting device 40. The goods are transferred to the sorting trolley 20 of the corresponding layer through the lifting of the lifting conveying trolley 45 of the package feeding lifting device 40. Then, the goods are moved to the designated position through the left and right movement of the sorting trolley 20, and then the goods are unloaded. The multi-layer track intelligent sorting device completes the transfer in the up-down direction by the package feeding lifting device 40 and completes the transfer in the left-right direction by the sorting trolley 20, which further improves the efficiency of the secondary sorting of goods.

[0167] Preferably, as shown in FIG. 1 and FIG. 2, the package feeding conveyor 30 is provided with a control panel 13 and a scanner 14. The scanner 14 is used for scanning the goods to confirm the position to which the goods are to be sent. The control panel 13 is used to display the working state of the device and to operate. At the same time, the multi-layer track intelligent sorting device is usually also provided with an alarm to alarm when an abnormality occurs.

[0168] Further, the package feeding conveyor 30 for the above-mentioned multi-layer track intelligent sorting device has various preferred embodiments.

[0169] The first embodiment of the package feeding conveyor 30

[0170] As shown in FIG. 12 and FIG. 13, the first embodiment of the feeding conveying device 30 comprises a feeding base 31 and a plurality of feeding conveying assemblies 32 mounted on the feeding base 31. The feeding conveying assemblies 32 adopt a conveying belt structure: each feeding conveying assembly 32 comprises a feeding conveying support, a pair of feeding rollers 322 rotatably mounted on the feeding conveying support, and a feeding conveying belt 323 connected to the pair of feeding rollers 322, and the feeding rollers 322 can be driven by a separate feeding driving source 321 (such as a motor), or the feeding rollers 322 adopt motorized rollers, and the feeding conveying support is the base frame 311 described below. In the embodiment shown in FIG. 12 and FIG. 13, each feeding conveying assembly 32 is provided with a feeding driving source 321, and the pair of feeding rollers 322 in each feeding conveying assembly 32 are respectively a driving roller 3221 and a driven roller 3222, the feeding driving source 321 is in transmission connection with the driving roller 3221, and the feeding driving sources 321 in the plurality of feeding conveying assemblies 32 are independent of each other. In the conveying direction of the feeding conveying belt 323 for conveying the sorted items forward, the plurality of feeding conveying assemblies 32 are sequentially connected from back to front and are distributed in a stepped manner from high to low, that is, the feeding conveying assembly 32 distributed on the last side is the highest, and the feeding conveying assembly 32 distributed on the front side is the lowest, and the two adjacent feeding conveying assemblies 32 are arranged closely.

[0171] In the first embodiment of the feeding conveying device 30, each feeding conveying assembly 32 is driven by an independent feeding driving source 321, so that the conveying speed of the feeding conveying belt 323 of each feeding conveying assembly 32 is independently controlled, thereby better controlling the buffering of the sorted items on the plurality of feeding conveying assemblies 32 and avoiding the excessive accumulation of the sorted items at the front end of the feeding conveying device 30, thereby improving the efficiency of the device. At the same time, the plurality of feeding conveying assemblies 32 are arranged in a stepped manner, and the heights of the plurality of feeding conveying assemblies 32 decrease from back to front, that is, the two adjacent feeding conveying assemblies 32 are vertically staggered, which can better enable the two adjacent feeding conveying assemblies 32 to be arranged closely and reduce the gap between the two adjacent feeding conveying assemblies 32, thereby avoiding the dropping of the items. Moreover, after the plurality of feeding conveying assemblies 32 are arranged in a stepped manner from high to low, the middle part of the feeding conveying belt 323 can avoid forming a groove, thereby avoiding the undesirable phenomenon of the light sorted items jumping on the feeding conveying belt 323 and ensuring the reliability of the feeding.

[0172] Preferably, the number of feeding conveying assemblies 32 in the feeding conveying device 30 is determined according to actual needs and can be 2, 3, 4 or more; in the embodiment shown in FIG. 12, the feeding conveying assemblies 32 are 3.

[0173] Further, the preferred structure of the feeding seat 31 is that, as shown in FIG. 12, the feeding seat 31 comprises a seat frame 311 and a pair of seat baffles 312 fixed on the upper end of the seat frame 311, and the seat baffles 312 are oppositely distributed on the left and right sides of the feeding conveying belt 323 of each group of feeding conveying assemblies 32 in the direction perpendicular to the conveying direction of the feeding conveying belt 323, and the seat baffles 312 are also higher than the feeding conveying belt 323 of each group of feeding conveying assemblies 32. By arranging the seat baffles 312, the sorted items on the feeding conveying belt 323 can be prevented from falling from the left and right sides, and the reliability of the forward conveying of the sorted items can be improved.

[0174] Further, as shown in FIG. 12, each group of feeding conveying assemblies 32 further comprises a detection unit installed on the feeding seat 31, and the detection unit is used to detect whether there is an item passing through the feeding conveying belt 323 of the group of feeding conveying assemblies 32. In this way, the first sorted item passing forward and the last sorted item passing forward on the feeding conveying device 30 can be detected for sorting start control and sorting close control, and the length of the sorted items conveyed on the feeding conveying device 30 can also be detected, and when the length of the sorted items exceeds a threshold value, it is judged as misplacement, and an alarm is given at this time, thereby improving the operation safety.

[0175] Preferably, as shown in FIG. 12, the detection unit comprises a grating sensor 33 fixed outside the seat baffle 312 and a detection opening 313 opened in the seat baffle 312, and the detection opening 313 allows the grating sensor 33 to be exposed. In addition, in each group of feeding conveying assemblies 32, the bottom of the detection opening 313 is flush with the top of the feeding conveying belt 323, and whether there is an item passing through the feeding conveying belt 323 can be more reliably detected.

[0176] Further, as shown in FIG. 12, at the head end (i.e. the front end) of the seat baffle 312 in the conveying direction of the feeding conveying belt 323 conveying the sorted items, a material taking avoidance area 314 is arranged to avoid the interference of the seat baffle 312 with the material taking of the sorting trolley 20 in the sorting system.

[0177] Further, as shown in FIG. 12, the feeding driving source 321 is distributed in a staggered manner with the driving roller 3221, and each group of feeding conveying assemblies 32 further comprises a transmission unit, and the feeding driving source 321 is connected with the driving roller 3221 through the transmission unit. By arranging the feeding driving source 321 in a staggered manner with the driving roller 3221, the size of the feeding conveying device 30 in the left and right directions can be reduced, and the installation of the feeding conveying device 30 in the sorting system is facilitated. Preferably, the transmission unit comprises a second driving pulley 324 fixed on the motor shaft of the feeding driving source 321, a third driven pulley 325 fixed on the end of the driving roller 3221, and a transmission belt 326 connected on the outer periphery of the second driving pulley 324 and the third driven pulley 325.

[0178] Further, as shown in FIG. 12 and FIG. 13, each set of the parcel conveying assembly 32 further comprises an adjusting unit, the adjusting unit comprising an adjusting long slot 315 opened in the parcel seat 31, an adjusting plate 34 fixed to the parcel seat 31, and an adjusting screw 35 rotatably threaded in the adjusting plate 34, the adjusting long slot 315 and the adjusting screw 35 both extending straight along the conveying direction of the parcel conveying belt 323; the driven roller 3222 comprising a roller shaft 3223 and a roller rotatably mounted on the outer periphery of the roller shaft 3223, the two ends of the roller shaft 3223 are clamped in the adjusting long slot 315 and are threadedly connected with the adjusting screw 35. By rotating the adjusting screw 35, the front and back positions of the roller shaft 3223 of the driven roller 3222 in the adjusting long slot 315 can be adjusted, and thus the front and back positions of the driven roller 3222 are adjusted, and further the tension degree of the parcel conveying belt 323 in the set of the parcel conveying assembly 32 is adjusted, so that the parcel conveying belt 323 can more reliably convey the sorted items forward.

[0179] Parcel conveying device 30 embodiment two

[0180] As shown in FIG. 14, the parcel conveying device 30 embodiment two comprises a parcel seat 31 provided with a conveying assembly mounting area 316, and a plurality of parcel conveying assemblies 32 assembled in the conveying assembly mounting area 316, the conveying direction of the parcel conveying assembly 32 is the conveying direction of the parcel conveying device 30, which is the forward direction. The plurality of parcel conveying assemblies 32 are arranged in front of and behind each other along the conveying direction, the number of the parcel conveying assemblies 32 assembled in a single conveying assembly mounting area 316 is determined according to actual needs, which can be two, three, or more sets; in the embodiment shown in FIG. 14, two sets of parcel conveying assemblies 32 are assembled in a single conveying assembly mounting area 316.

[0181] As shown in FIG. 15 to FIG. 18, the parcel seat 31 is fixed with a seat baffle 312 on the left and right sides of the conveying assembly mounting area 316, and the seat baffle 312 is part of the parcel seat 31. Each set of the parcel conveying assembly 32 comprises a parcel driving source 321, a pair of parcel rollers 323 arranged side by side in front of and behind each other along the conveying direction, and a parcel conveying belt 323 connected to the outer periphery of the pair of parcel rollers 323, the arrangement height of the pair of parcel rollers 323 is the same, so that the parcel conveying belt 323 has a conveying plane connected to the upper ends of the pair of parcel rollers 323; the left and right ends of the parcel rollers 323 are rotatably supported in the seat baffle 312 of the parcel seat 31 and are drivingly connected with the parcel driving source 321, a triangular area 318 is formed between the front and back two sets of parcel conveying assemblies 32, the parcel rollers 323 are small-diameter rollers with a diameter not greater than 40 mm, that is, the parcel rollers 323 are rollers with an unconventional outer diameter size, but small-diameter rollers much smaller than the unconventional outer diameter size are adopted.

[0182] The application relates to a package conveying device 30, when a package driving source 321 is in action, a pair of package rollers 323 rotates, at the same time, a package conveying belt 323 makes rotary motion; a sorter places a plurality of to-be-sorted sorted objects on a conveying plane of the package conveying belt 323 of a last group of package conveying assemblies 32 in the package conveying device 30, and the package conveying belt 323 of the group of package conveying assemblies 32 forwards the sorted objects. In particular, the package rollers 323 in the application adopt small-diameter rollers with a diameter of not greater than 40 mm, so that the size of a triangle-shaped area 318 formed between two adjacent groups of package conveying assemblies 32 can be greatly reduced, the connection between the two adjacent groups of package conveying assemblies 32 is more gentle, the sorted objects with small volume can be effectively prevented from being stuck in the triangle-shaped area 318, the sorted objects forwarded by the group of package conveying assemblies 32 can be smoothly transferred to the group of package conveying assemblies 32, the probability of dropping is greatly reduced, and finally the reliability and accuracy of sorting of the sorted objects are ensured. Finally, the sorted objects are conveyed to the front end of the package conveying device 30 after being forwarded by the package conveying belts 323 of the groups of package conveying assemblies 32, and then the sorted objects are caught by the sorting trolley 20. Therefore, the rear end of the package conveying device 30 is the feeding end of the sorted objects, and the front end of the package conveying device 30 is the discharging end of the sorted objects.

[0183] In the embodiment of the package conveying device 30, each group of package conveying assemblies 32 adopts an independent package driving source 321, so that the conveying speed of the package conveying belt 323 of each group of package conveying assemblies 32 is independently controlled, thereby better controlling the buffer of the sorted objects on the groups of package conveying assemblies 32, avoiding excessive accumulation of the sorted objects at the front end of the package conveying device 30, and improving the efficiency of the device.

[0184] Preferably, the diameter of the package rollers 323 in the application is 28-32 mm, which can effectively prevent the sorted objects with small volume from being stuck in the triangle-shaped area 318 and can determine better supporting performance of the package conveying belt 323.

[0185] Further, based on the structure that the feeding and packaging roller 323 adopts a small-diameter roller, the contact area between the feeding and packaging roller 323 and the feeding and packaging conveying belt 323 is inevitably reduced, and the friction between the feeding and packaging roller 323 and the feeding and packaging conveying belt 323 is also inevitably reduced. If the feeding and packaging driving source 321 is used to drive the feeding and packaging roller 323 to rotate to drive the feeding and packaging conveying belt 323 to rotate, the rotation speed of the feeding and packaging conveying belt 323 cannot meet the requirements. Therefore, the driving structure of the feeding and packaging driving source 321 for driving the feeding and packaging conveying belt 323 to rotate is preferably as follows: as shown in FIGS. 15-18, the feeding and packaging driving source 321 is a motor, each feeding and packaging conveying assembly 32 further includes a transmission roller 36, a first pulley 371 fixed on the motor shaft of the feeding and packaging driving source 321, a second pulley 372 fixed on the transmission roller 36, and a pulley transmission synchronous belt 373 connected between the first pulley 371 and the second pulley 372, the transmission roller 36 is parallel to the feeding and packaging roller 323, and the left and right ends of the transmission roller 36 are rotatably supported in the machine seat baffle 312 of the feeding and packaging machine seat 31; the transmission roller 36 is a roller with an unconventional outer diameter size, that is, the diameter of the transmission roller 36 is greater than the diameter of the feeding and packaging roller 323, and preferably, the diameter of the transmission roller 36 is 3-5 times greater than the diameter of the feeding and packaging roller 323; the transmission roller 36 is in contact with the inner circumferential surface of the feeding and packaging conveying belt 323 and is distributed below the pair of feeding and packaging rollers 323. In this way, the feeding and packaging driving source 321 drives the transmission roller 36 to rotate through the first pulley 371, the second pulley 372 and the pulley transmission synchronous belt 373, and the transmission roller 36 and the feeding and packaging conveying belt 323 have a large contact area and a large friction. The feeding and packaging conveying belt 323 is driven by the transmission roller 36 to rotate, which not only improves the reliability of the rotation of the feeding and packaging conveying belt 323 and ensures that it accurately forwards the sorted articles, but also ensures that the rotation speed of the feeding and packaging conveying belt 323 meets the design requirements.

[0186] Further, as shown in FIGS. 15 and 17, a motor installation area 38 is formed between one of the pair of feeding and packaging rollers 323 and the transmission roller 36 on the outer circumferential side of the feeding and packaging conveying belt 323, the feeding and packaging driving source 321 is located in the motor installation area 38 and is fixed to the machine seat baffle 312 of the feeding and packaging machine seat 31, which facilitates the installation of the feeding and packaging driving source 321 and makes the overall structure more compact and reduces the overall occupied space of the feeding and packaging conveying device 30.

[0187] Further, as shown in FIGS. 15-17, each of the package conveying assemblies 32 further comprises a tension adjusting roller 39 arranged in the motor mounting area 38; the tension adjusting roller is parallel to the transmission roller 36, and comprises a roller shaft portion 391 and a tension roller portion 392 rotatably arranged on the roller shaft portion 391, the tension roller portion 392 is in contact with the outer circumferential surface of the package conveying belt 323, and the roller shaft portion 391 is movably mounted on the package machine base 31 by a tension adjusting assembly. In this way, the front and back positions of the tension adjusting roller 39 are adjusted by adjusting the front and back positions of the roller shaft portion 391 by the tension adjusting assembly, and then the tension of the package conveying belt 323 is adjusted. Preferably, the tension adjusting assembly can adopt a bolt and nut structure: the tension adjusting assembly comprises an adjusting seat 317 fixed to the package machine base 31, an adjusting groove 3171 extending front and back in the package machine base 31, an adjusting bolt extending front and back, and a locking nut connected to the adjusting bolt, the adjusting bolt and the locking nut are not shown in the figure, the roller shaft portion 391 is movably arranged in the adjusting groove 3171, the adjusting bolt is arranged in the roller shaft portion 391 and the adjusting seat 317, and the locking nut abuts the outer circumferential side of the roller shaft portion 391.

[0188] Further, as shown in FIGS. 15 and 17, the outer circumferential surface of the package conveying belt 323 is provided with at least one circumferentially extending limiting protrusion 3231; when there are several limiting protrusions 3231, the several limiting protrusions 3231 are arranged side by side in the left and right directions perpendicular to the conveying direction of the package conveying assembly 32. The limiting protrusions 3231 limit the left and right directions of the sorted items conveyed forward on the package conveying belt 323, thereby improving the accuracy of conveying the sorted items forward. The number of limiting protrusions 3231 on each package conveying belt 323 is determined according to actual needs, and in the embodiment, there are two limiting protrusions 3231 on the left and right sides.

[0189] Further, as shown in FIG. 14, the conveying assembly mounting area 316 in the package machine base 31 has several conveying assembly mounting areas 316 arranged side by side in the left and right directions perpendicular to the conveying direction of the package conveying assembly 32, and a plurality of package conveying assemblies 32 are arranged in each conveying assembly mounting area 316. In the embodiment shown in FIG. 14, the conveying assembly mounting area 316 in the package machine base 31 has two conveying assembly mounting areas 316 arranged side by side in the left and right directions, and two package conveying assemblies 32 are arranged in each conveying assembly mounting area 316. In this way, the efficiency of supplying the sorted items can be improved, and the efficiency of the sorting system can be ultimately improved.

[0190] Further, as shown in FIG. 18, along the conveying direction of the parcel conveying assembly 32 for conveying the sorted items, the plurality of groups of parcel conveying assemblies 32 are distributed from back to front and from high to low in a stepped manner, i.e., the parcel conveying assemblies 32 distributed at the back are higher than the parcel conveying assemblies 32 distributed at the front. In this way, after the two adjacent groups of parcel conveying assemblies 32 in front and back adopt the structure of high-low staggering, the gap between the two adjacent groups of parcel conveying assemblies 32 can be better reduced, so that the triangular area 318 is smaller, and the anti-falling item function is better achieved. At the same time, after the plurality of groups of parcel conveying assemblies 32 in front and back are adopted, the middle part of the parcel conveying belt 323 can avoid forming a groove, so as to avoid the adverse phenomenon of the light sorted items jumping on the parcel conveying belt 323, and ensure the reliability of the feeding.

[0191] Further, the parcel lifting device 40 for the above-mentioned multi-layer track type intelligent sorting device has a plurality of preferred embodiments.

[0192] Parcel lifting device 40 embodiment one

[0193] As shown in FIGS. 19 and 20, the parcel lifting device 40 comprises a frame support 41, and at least one pair of upper and lower lifting synchronous pulleys 42 are arranged in the frame support 72. In the embodiment shown in FIGS. 19 and 20, the lifting synchronous pulleys 42 are two pairs of left and right, so that the lifting synchronous pulleys 42 are four and are rotatably installed at the four corners of the frame support 72. The lifting synchronous pulleys 42 in each pair are arranged with a lifting synchronous belt 43, and the top or bottom of the frame support 41 is provided with a lifting servo motor 44. The lifting servo motor 44 is in transmission connection with the two lifting synchronous pulleys 42 on the upper side or in transmission connection with the two lifting synchronous pulleys 42 on the lower side. The two lifting synchronous belts 43 are connected with a lifting conveying trolley 45, and the lifting conveying trolley 45 can receive and unload the goods. The lifting servo motor 44 works to drive the lifting synchronous pulleys 42 to rotate, so as to drive the lifting synchronous belts 43 to rotate in the up-down direction, and then the lifting conveying trolley 45 is lifted or lowered to the track 12 at different heights. The lifting conveying trolley 45 conveys the goods to the sorting trolley 20 on the track 12.

[0194] Parcel lifting device 40 embodiment two

[0195] As shown in FIG. 21 and FIG. 22, the package lifting device 40 comprises a vertical beam 46 extending upward and downward, a lifting servo motor 44 arranged at the top or bottom of the vertical beam 46, a lifting guide rail 47 fixed on one side of the vertical beam 46, a lifting sliding block 48 in sliding cooperation with the lifting guide rail 47, and a lifting conveying trolley 45 in transmission connection with the lifting servo motor 44, the lifting sliding block 48 being fixedly connected with the lifting conveying trolley 45, and the lifting conveying trolley 45 being capable of receiving and discharging goods. The lifting servo motor 44 works to drive the lifting conveying trolley 45 to ascend or descend to the track 12 at different heights through the lifting guide rail 47 and the lifting sliding block 48, and the lifting conveying trolley 45 conveys the goods to the sorting trolley 20 on the track 12.

[0196] Preferably, in the two embodiments of the package lifting device 40 described above, the lifting conveying trolley 45 adopts a conveying belt structure. As shown in FIG. 19, the lifting conveying trolley 45 comprises a lifting conveying support, a pair of lifting rollers rotatably mounted on the front and rear sides of the lifting conveying support, and a lifting conveying belt connected with the pair of lifting rollers, the lifting rollers being driven by separate motors or being electric rollers.

[0197] Further, as shown in FIG. 1 to FIG. 3, the front side and the rear side of the rack 10 are both provided with a receiving device 50 and a discharging mechanism 60, and the sorting trolley 20 reciprocates between the discharging mechanisms 60 on the front and rear sides; the receiving device 50 comprises a goods shelf 51 and a plurality of receiving frames 52 mounted on the goods shelf 51, and the plurality of receiving frames 52 are arrayed in a manner of multiple layers in the up-down direction and multiple groups in the left-right direction; the discharging mechanism 60 comprises a plurality of discharging chutes 61, and a certain number of the discharging chutes 61 are arrayed in a manner of multiple layers in the up-down direction and multiple groups in the left-right direction; the plurality of receiving frames 52 on the goods shelf 51 correspond to the plurality of discharging chutes 61 of the discharging mechanism 60 one by one, the receiving frames 52 are distributed on the outer end side of the discharging chutes 61, and the discharging chutes 61 extend obliquely downward outward. After the sorting trolley 20 moves the goods thereon to the target discharging chute 61 in the left-right direction, the sorting trolley 20 discharges the goods to the discharging chute 61, and the goods slide along the discharging chute 61 to the receiving frame 52 on the outer side of the discharging chute 61, thereby more intelligently achieving automatic sorting.

[0198] Further, the preferred structure of the blanking mechanism 60 is that, as shown in FIG. 1 and FIG. 23, the blanking mechanism 60 comprises a chute bottom plate 62 mounted on the frame 10, and a plurality of partitions 624 mounted on the chute bottom plate 62, and a plurality of blanking chutes 61 are formed between the chute bottom plate 62 and the plurality of partitions 624. The chute bottom plate 62 is rectangular, and the chute bottom plate 62 comprises a first side edge 6211 and a second side edge 6212 oppositely arranged at front and back, the first side edge 6211 is close to the sorting trolley 20, that is, the inner side edge of the chute bottom plate 62, and the second side edge 6212 is away from the sorting trolley 20, that is, the outer side edge of the chute bottom plate 62; at the same time, the height of the first side edge 6211 is greater than the height of the second side edge 6212. In addition, the chute bottom plate 62 is inclined outward and downward, so that the blanking chute 61 is also inclined outward and downward, and the goods falling on the chute bottom plate 62 from the first side edge 6211 will slide to the second side edge 6212 under the action of gravity, and then fall into the receiving equipment 50. Preferably, the chute bottom plate 62 further comprises a third side edge and a fourth side edge oppositely arranged at left and right, and a connecting plate 64 is arranged on each of the third side edge and the fourth side edge, and the chute bottom plate 62 is mounted on the frame 10 through the connecting plate 64.

[0199] During the sorting operation, the sorting trolley 20 first moves to the package conveying equipment 30 to receive the materials provided by the package conveying equipment 30, and then the sorting trolley 20 with the materials moves to a designated position on the chute bottom plate 62, and then the sorting trolley 20 unloads the materials, and the materials fall into the receiving equipment 50 through the chute bottom plate 62 to complete the blanking. In order to prevent the materials from falling into the gap between the sorting trolley 20 and the chute bottom plate 62 and ensure the smooth completion of blanking, as shown in FIG. 23, a flexible blocking piece 63 is arranged on the first side edge 6211 of the chute bottom plate 62. The flexible blocking piece 63 not only helps to shorten the gap between the sorting trolley 20 and the chute bottom plate 62 to prevent the materials from falling, but also automatically rebounds in the process of colliding with the sorting trolley 20, and has the characteristics of not being easily damaged. Specifically, the flexible blocking piece 63 is made of a flexible material with good resilience, such as silicone or rubber. In addition, the light materials on the sorting trolley 20 are more likely to fall than the heavy materials; when the light sorted materials fall off the sorting trolley 20, the light sorted materials will fall on the flexible blocking piece 63, and the flexible blocking piece 63 itself has a certain bearing capacity, so the bearing capacity of the flexible blocking piece 63 can also ensure that the sorted materials enter the chute bottom plate 62, and ensure the smooth completion of blanking.

[0200] Further, when the sorting trolley 20 needs to unload the materials carried by itself onto the chute bottom plate 62, the height of the sorting trolley 20 is greater than the height of the first side edge 6211, so that there is a height difference between the sorting trolley 20 and the chute bottom plate 62. The height difference can make the materials leaving the sorting trolley 20 move in a parabolic manner, greatly increasing the possibility of the materials falling onto the chute bottom plate 62.

[0201] Further, the form of the flexible stopper 63 is not limited, and can include a flexible pad arranged along the first side edge 6211. Alternatively, as shown in FIGS. 23-25, the flexible stopper 63 can include a plurality of flexible strips 631 arranged on the first side edge 6211. Compared with the flexible pad, the plurality of flexible strips 631 can reduce the resistance of the sorting trolley 20 during movement, and can also reduce the wear of the flexible strips 631, thereby prolonging the service life of the flexible strips 631.

[0202] In the above embodiment using the plurality of flexible strips 631, as shown in FIGS. 24-29, the chute bottom plate 62 includes a main plate body 621 and a bent portion 622 connected in an L shape. The main plate body 621 includes the first side edge 6211 and the second side edge 6212, and the extension directions of the first side edge 6211 and the second side edge 6212 are parallel to the length direction of the main plate body 621. The first side edge 6211 is connected to the bent portion 622. A plurality of through holes 623 are arranged on the main plate body 621 and the bent portion 622, and the through holes 623 are arranged along the extension direction of the first side edge 6211. The blanking mechanism 60 further includes a pressing plate 66 arranged below the main plate body 621. The pressing plate 66 includes a first plate body 661 and a second plate body 662 connected in an L shape. A plurality of groups of perforations are arranged on the first plate body 661 along the length direction of the first plate body 661, and the length direction of the first plate body 661 is parallel to the extension direction of the first side edge 6211. Each group of perforations includes a first perforation 6611 and a second perforation 6612 arranged along the width direction of the first plate body 661. As shown in FIGS. 23-25 and FIG. 30, one end of the flexible strip 631 sequentially passes through the through hole 623, the second perforation 6612, and the first perforation 6611 to form a U-shaped portion 632. The second plate body 662 is detachably connected to the bent portion 622. In this way, the flexible strip 631 can be prevented from falling off the chute bottom plate 62 during use, and the mounting structure is more stable and firm.

[0203] Further, as shown in FIGS. 25, 26, 28, and 29, the second plate body 662 is provided with a connecting hole 6621, and the bent portion 622 is provided with a locking long hole 6221 extending along the width direction of the bent portion 622. The inner diameter of the connecting hole 6621 is smaller than the length of the locking long hole 6221. The connecting hole 6621 and the locking long hole 6221 are connected by a fastener, which is specifically a bolt. By adjusting the position of the fastener in the locking long hole 6221, the distance between the first plate body 661 and the main plate body 621 can be changed, which facilitates fixing the flexible strip 631 of different sizes on the chute bottom plate 62. In addition, as shown in FIG. 24, a plurality of reinforcing ribs 65 are arranged on the bottom of the main plate body 621, and the reinforcing ribs 65 specifically extend along the extension direction of the first side edge 6211. In this way, the structural strength of the main plate body 621 can be increased, which helps to bear materials of different weights.

[0204] Further, the preferred structure of the sorting driving assembly 70 is as follows: as shown in FIG. 2 and FIG. 31, the sorting driving assembly 70 comprises at least one set of synchronous belt driving assembly; each set of synchronous belt driving assembly comprises a pair of trolley synchronous pulleys 71 rotatably mounted at the left and right ends of the rack 10, a trolley synchronous belt 72 connected between the pair of trolley synchronous pulleys 71, and a trolley servo motor 73 in transmission connection with one of the trolley synchronous pulleys 71, the extension direction of the trolley synchronous belt 72 is parallel to the extension direction of the track 12, and the trolley frame 21 of the sorting trolley 20 is fixedly connected with the trolley synchronous belt 72. The trolley servo motor 73 works to drive the trolley synchronous pulleys 71 to rotate, thereby driving the trolley synchronous belt 72 to rotate, so as to drive the sorting trolley 20 to horizontally move to the designated position along the left-right direction. Preferably, in the embodiment shown in FIG. 31, there are two sets of synchronous belt driving assemblies. Along the front-rear direction perpendicular to the translation direction of the sorting trolley 20, the two sets of synchronous belt driving assemblies are symmetrically connected on the front and rear sides of the trolley frame 21 of the sorting trolley 20, so that the sorting trolley 20 is more balanced in force and has better stability in horizontal translation along the track 12.

[0205] Further, as shown in FIG. 1, the rack 10 is a straight one-shaped frame structure extending along the left-right direction, and the feeding area 11 and the feeding unit are located at the left end or the right end of the side edge of the rack 10 along the extension direction of the rack 10. In the view shown in FIG. 1, the feeding unit is located at the right end of the rear side edge of the rack 10; and the rack 10 is provided with a certain number of material falling chutes 61, shelves 51 and material receiving frames 52 on the left side of the feeding conveying device 30 and the feeding lifting device 40 along the extension direction of the rack 10. After the sorting trolley 20 moves to the right to the feeding lifting device 40 to take the goods, the sorting trolley 20 can only move to the left to convey the goods; then it moves to the right to the feeding lifting device 40 again, moves to the left to transfer the goods, and so on. Therefore, the multi-layer track type intelligent sorting device embodiment one is a terminal feeding structure, and the sorting trolley 20 can only move left and right on the left side of the feeding unit along the extension direction of the rack 10, which can relatively simplify the overall structure of the equipment and reduce the cost, and is suitable for the case that the length of the rack 10 in the left-right direction is relatively short.

[0206] Multi-layer track type intelligent sorting device embodiment two

[0207] The difference between the multi-layer track type intelligent sorting device embodiment two and the multi-layer track type intelligent sorting device embodiment one is as follows: as shown in FIG. 32, the number of the feeding conveying assemblies 32 on the feeding conveying device 30 is multiple, and the number of the corresponding feeding lifting devices 40 is also multiple. In the multi-layer track type intelligent sorting device embodiment two shown in FIG. 32, the feeding conveying assemblies 32 on the feeding conveying device 30 and the corresponding feeding lifting devices 40 are both two, which improves the sorting efficiency.

[0208] Multi-layer track type intelligent sorting device embodiment three

[0209] The difference between multi-layer track type intelligent sorting device embodiment three and multi-layer track type intelligent sorting device embodiment one is that multi-layer track type intelligent sorting device embodiment three adopts a middle package supply structure. Specifically, as shown in FIG. 33, the package supply unit is located in the middle of the rear side edge of the rack 10 along the extension direction of the rack 10, and a certain number of material falling grooves 61, shelves 51 and material receiving frames 52 are arranged on the left and right sides of the package supply conveying device 30 and the package lifting device 40 along the extension direction of the rack 10. After the sorting trolley 20 moves to the package lifting device 40 to take the goods, the sorting trolley 20 can translate left or right and convey the goods; then move reversely to the package lifting device 40 again, and continue to transfer the goods, and so on. Therefore, multi-layer track type intelligent sorting device embodiment three is a middle package supply structure, which can also be called a non-terminal package supply structure. The sorting trolley can move to the left and right sides of the package supply unit along the extension direction of the rack 10. Compared with the terminal package supply structure adopted by multi-layer track type intelligent sorting device embodiment one, under the premise of configuring the same number of material falling grooves 61, the middle package supply structure can relatively shorten the single round trip distance of the sorting trolley 20 between the package lifting device 40 and the material falling groove 61, and reduce the single reciprocating stroke of the sorting trolley 20. Under the premise that the single reciprocating stroke of the sorting trolley 20 is the same, the middle package supply structure can configure more material falling grooves 61. Ultimately, multi-layer track type intelligent sorting device embodiment three with a middle package supply structure can greatly improve the sorting efficiency.

[0210] In the third embodiment of the multi-layer track type intelligent sorting device, as shown in FIG. 34 and FIG. 35, the sorting trolley 20 and the synchronous belt transmission assembly driving the sorting trolley 20 to move left and right are arranged on the left side and the right side of the package supply unit. The position of the track 12 at the package supply area 11 is defined as the pick-up station 123, and the package supply unit is arranged at the pick-up station 123. The sorting trolleys 20 on the left side and the right side can move to the pick-up station 123 to pick up the package. For the convenience of description, the sorting trolleys 20 distributed on the left side of the package supply unit are defined as the first sorting trolleys 741, the synchronous belt transmission assemblies distributed on the left side of the package supply unit are defined as the first translation transmission assemblies 742, the trolley servo motor 73 in the first translation transmission assembly 742 constitutes the first translation driving source 743, the two groups of first translation transmission assemblies 742 in front and back on the left side constitute the first translation transmission unit, and the first sorting trolleys 741 and the first translation transmission unit in transmission connection constitute the first assembly. The sorting trolleys 20 distributed on the right side of the package supply unit are defined as the second sorting trolleys 751, the synchronous belt transmission assemblies distributed on the right side of the package supply unit are defined as the second translation transmission assemblies 752, the trolley servo motor 73 in the second translation transmission assembly 752 constitutes the second translation driving source 753, the two groups of second translation transmission assemblies 752 in front and back on the right side constitute the second translation transmission unit, and the second sorting trolleys 751 and the second translation transmission unit in transmission connection constitute the second assembly. The first sorting trolleys 741 and the second sorting trolleys 751 can adopt any one of the above-mentioned sorting trolleys 20.

[0211] Therefore, in the third embodiment of the multi-layer track type intelligent sorting device, as shown in FIG. 34 and FIG. 35, the first sorting trolleys 741 are movably installed on the track 12 through the first translation transmission unit, and the second sorting trolleys 751 are movably installed on the track 12 through the second translation transmission unit. Along the extension direction of the track 12, the non-end position of the track 12 is provided with the pick-up station 6 for the first sorting trolleys 741 and the second sorting trolleys 751 to pick up the package. The pick-up stations 6 are distributed on the movement stroke of the first sorting trolleys 741 moving along the track 12 and on the movement stroke of the second sorting trolleys 751 moving along the track 12, so that the movement stroke of the first sorting trolleys 741 and the movement stroke of the second sorting trolleys 751 have an overlapping section at the pick-up station 6.

[0212] As shown in FIG. 34 and FIG. 35, the track 12 is preferably a horizontal track, and is provided with two front and back tracks, i.e. a first track 741 and a second track 742. The first and second translation transmission units are arranged between the two tracks 12. Of course, in other embodiments, the track 12 can also adopt other shapes, such as a curved track, or an L-shaped track, or a T-shaped track. The first sorting trolley 741 is movably mounted on the first track 741 and the second track 742 on the front and back sides respectively, and the second sorting trolley 751 is movably mounted on the first track 741 and the second track 742 on the front and back sides respectively, so that the first sorting trolley 741 and the second sorting trolley 751 remain stable during a long period of work.

[0213] Further, the first translation transmission assembly 742 and the second translation transmission assembly 752 are preferably arranged in the following ways.

[0214] Way one, as shown in FIG. 34 and FIG. 35, two sets of front and back symmetric first translation transmission assemblies 742 and two sets of front and back symmetric second translation transmission assemblies 752 are arranged; in the front and back direction, the two sets of second translation transmission assemblies 752 are arranged between the two sets of first translation transmission assemblies 742; in the left and right direction, the right section of the two sets of first translation transmission assemblies 742 and the left section of the two sets of second translation transmission assemblies 752 are staggered at the picking station 6, i.e. in the left and right direction, the right end of the first translation transmission assembly 742 is distributed to the right of the left end of the second translation transmission assembly 752, and the left end of the second translation transmission assembly 752 is distributed to the left of the right end of the first translation transmission assembly 742, so that the movement stroke of the first sorting trolley 741 and the movement stroke of the second sorting trolley 751 have a coincident section at the picking station 6. In this way, the first translation transmission assembly 742 and the second translation transmission assembly 752 do not interfere with each other, and can allow the first sorting trolley 741 and the second sorting trolley 751 to move along the same track 12, which can effectively improve the sorting efficiency; at the same time, it can also stably support the sorting trolley 20, avoiding the situation that the end of the sorting trolley 20 not connected with the translation transmission assembly tilts downward due to the connection position of the translation transmission assembly and the sorting trolley 20 being too concentrated at the end of the sorting trolley 20.

[0215] Way two, the difference from way one is that two sets of front and back symmetric first translation transmission assemblies 742 and one set of second translation transmission assemblies 752 are arranged; in the front and back direction, the one set of second translation transmission assemblies 752 is arranged between the two sets of first translation transmission assemblies 742, and the second translation transmission assembly 752 is distributed centrally relative to the second sorting trolley 751.

[0216] The third mode is different from the first mode in that a set of front-rear symmetrical first translation transmission assemblies 742 and a set of second translation transmission assemblies 752 are arranged; in the front-rear direction, the first translation transmission assemblies 742 and the second translation transmission assemblies 752 are located between the two tracks 12, and the first translation transmission assemblies 742 and the second translation transmission assemblies 752 are arranged in front of and behind each other along the horizontal width direction of the track 12.

[0217] As shown in FIGS. 34 and 35, when the first translation transmission assemblies 742 are arranged in two groups in front and back, the front-rear two trolley synchronous pulleys 71 distributed on the same side in the left-right direction in the two groups of first translation transmission assemblies 742 are preferably fixed on a front-rear extending first synchronous shaft 744, and the first synchronous shaft 744 is connected with the trolley servo motor 73 in the first translation transmission assembly 742. When the second translation transmission assemblies 752 are arranged in two groups in front and back, the front-rear two trolley synchronous pulleys 71 distributed on the same side in the left-right direction in the two groups of second translation transmission assemblies 752 are preferably fixed on a front-rear extending second synchronous shaft 754, and the second synchronous shaft 754 is connected with the trolley servo motor 73 in the second translation transmission assembly 752.

[0218] In addition, in the present embodiment, the first translation transmission assemblies 742 and the second translation transmission assemblies 752 are both synchronous belt transmission structures. In other embodiments, the first translation transmission assemblies 742 and the second translation transmission assemblies 752 can also adopt a chain wheel and chain transmission structure, or a gear and rack transmission structure, or a ball screw transmission structure.

[0219] Further, in other embodiments, as shown in FIG. 36, the track 12 is only arranged in one, and the first sorting trolley 741 and the second sorting trolley 751 are movably installed on the track 12. At this time, the first translation transmission assemblies 742 and the second translation transmission assemblies 752 are arranged on the same side or different sides of the track 12 along the horizontal width direction of the track 12. When the first translation transmission assemblies 742 and the second translation transmission assemblies are arranged on the same side of the track 12, they are arranged in intervals and do not interfere with each other.

[0220] The fourth embodiment of the multi-layer track type intelligent sorting device

[0221] The fourth embodiment of the multi-layer track type intelligent sorting device is different from the third embodiment of the multi-layer track type intelligent sorting device in that, as shown in FIG. 37, the number of the package conveying assemblies 32 of the package conveying equipment 30 is multiple, and the number of the corresponding package lifting equipment 40 is also multiple. The fourth embodiment of the multi-layer track type intelligent sorting device shown in FIG. 37 is also a middle package structure, and the package conveying assemblies 32 on the package conveying equipment 30 in the middle of the rack 10 and the corresponding package lifting equipment 40 are both left and right two, which further improves the sorting efficiency.

[0222] The fifth embodiment of the multi-layer track type intelligent sorting device

[0223] The difference between the fifth embodiment of the multi-layer track type intelligent sorting device and the first embodiment of the multi-layer track type intelligent sorting device is that, as shown in FIG. 38 and FIG. 39, the structures of the package supply units are different. The package supply unit includes a package supply slot and a package supply assembly. There are multiple package supply slots, which are all arranged at the position of the package supply area 11 on the rack 10, are matched with the tracks 12, and are distributed vertically. Each package supply slot is provided with a package supply assembly. When the multi-layer track type intelligent sorting device performs a sorting operation, the package supply area 11 is used for manual feeding or placing a package supply device for automatic feeding. The goods are delivered to the package supply assembly, the package supply assembly forwards the goods, and then the goods are transferred to the sorting trolley 20 on the corresponding layer. The sorting drive assembly 70 controls the sorting trolley 20 to move to the designated position in the left and right directions along the track 12, and then the goods are unloaded. In this multi-layer track type intelligent sorting device, multiple vertically distributed package supply slots are arranged. According to the height of the sorting destination of the goods, the goods are directly delivered to the package supply assembly at the corresponding height of the package supply slot. Then, the transfer in the left and right directions is completed by the sorting trolley 20. This effectively improves the efficiency of the secondary sorting of goods, relatively simplifies the structure of the multi-layer track type intelligent sorting device, reduces the cost, makes it easy to maintain, and is simple to operate, has high sorting accuracy, and has high compatibility of goods size. At the same time, this application also reduces the investment in the secondary sorting link of goods, reduces the labor input, and improves the sorting accuracy.

[0224] Further, as shown in FIG. 38 to FIG. 41, the package supply assembly includes a package supply conveying vehicle 90, which is distributed on the rear side of the rack 10. During the translation in the left and right directions, the sorting trolley 20 can move to the front side of the package supply conveying vehicle 90. The package supply conveying vehicle 90 adopts a conveying belt structure. The package supply conveying vehicle 90 includes a package supply conveying support, a pair of package rollers mounted on the front and rear ends of the package supply conveying support, and a package conveying belt connected to the pair of package rollers. The package rollers can be driven by a separate motor, or the package rollers can be electric rollers. The goods are placed on the package conveying belt of the package supply conveying vehicle 90. The package conveying belt is driven to rotate by the rotation of the package rollers, so as to realize the forward conveying of the goods. The goods are driven to fall onto the sorting trolley 20, and the forward direction is also the package direction of the package supply assembly.

[0225] Preferably, as shown in FIGS. 38-41, each parcel slot is provided with a light assembly 16, through which the status of the delivery of the goods can be indicated, such as a green light indicating that the goods can be delivered, and a red light indicating that the goods cannot be delivered. One of the plurality of parcel slots is provided with a scanner 14 for scanning the code of the goods to identify the location to which the goods are to be delivered. The control panel 13 is provided on the rack 10 on one side of the parcel area 11, and is used to display the working status of the device and to operate the device. Generally, the multi-layer track-type intelligent sorting device is also provided with an alarm, which alarms when an abnormality occurs.

[0226] Embodiment six of the multi-layer track-type intelligent sorting device

[0227] The difference between embodiment six of the multi-layer track-type intelligent sorting device and embodiment five of the multi-layer track-type intelligent sorting device is that, as shown in FIGS. 42 and 43, in embodiment six of the multi-layer track-type intelligent sorting device, the parcel assembly includes a parcel chute 80 and a parcel conveying vehicle 90. In the embodiment shown in FIG. 43, the tracks 12 and the sorting trolleys 20 thereon, and the parcel slots have three layers, the uppermost layer of the parcel slots is provided with the parcel assembly in the form of the parcel conveying vehicle 90, which is distributed on the rear side of the rack 10; the middle layer and the lowermost layer of the parcel slots are provided with the parcel assembly in the form of the parcel chute 80, which is distributed on the rear side of the rack 10; the parcel chute 80 is inclined in a manner that gradually slopes downward in the parcel direction, i.e., the parcel chute 80 slopes downward and forward.

[0228] As shown in FIG. 43, for the uppermost layer of the tracks 12 and the sorting trolleys 20 thereon, and the parcel conveying vehicle 90: after the sorting trolley 20 moves to the front side of the parcel conveying vehicle 90, the parcel conveying vehicle 90 conveys the goods thereon forward, driving the goods to fall onto the sorting trolley 20. As shown in FIGS. 44 and 45, for the two lower layers of the tracks 12 and the sorting trolleys 20 thereon, and the parcel chute 80: after the sorting trolley 20 moves to the front side of the parcel chute 80, the goods are placed on the parcel chute 80, and slide along the slope of the parcel chute 80 to the front and downward, and then slide onto the sorting trolley 20, achieving the conveying of the goods in the forward direction. Thus, the forward direction is also the parcel direction of the parcel assembly.

[0229] Preferably, as shown in FIGS. 42 and 43, each parcel slot is provided with a detection grating 17. Each parcel chute 80 is provided with a switching device. When the sorting trolley 20 does not reach the front end of the parcel chute 80, the switching device is closed, so that the goods do not slide off the parcel chute 80; only when the sorting trolley 20 reaches the front end of the parcel chute 80, the switching device is opened, allowing the goods to slide off the parcel chute 80. In addition, each parcel slot is provided with a light assembly 16, which is installed at the rear end of each parcel chute 80.

[0230] Multi-layer track type intelligent sorting device embodiment seven

[0231] The difference between the multi-layer track type intelligent sorting device embodiment seven and the multi-layer track type intelligent sorting device embodiment six is that the multi-layer track type intelligent sorting device embodiment seven uses the package feeding chute 80 in the multi-layer track type intelligent sorting device embodiment six.

[0232] Multi-layer track type intelligent sorting device embodiment eight

[0233] The difference between the multi-layer track type intelligent sorting device embodiment eight and the multi-layer track type intelligent sorting device embodiment five is that, as shown in FIG. 44, the multi-layer track type intelligent sorting device embodiment eight adopts a centrally-located package feeding structure. Specifically, the package feeding area 11 is located in the middle of the rear side edge of the rack 10 along the extension direction of the rack 10, and a certain number of the material falling chutes 61, the shelves 51 and the material receiving frames 52 are arranged on the left and right sides of the package feeding area 11 along the extension direction of the rack 10. After the sorting trolley 20 moves to the package feeding area 11 to pick up the goods, the sorting trolley 20 can translate leftward or rightward and convey the goods; then the sorting trolley 20 moves reversely to the package feeding area 11 again to continue conveying the goods, and the cycle continues. Therefore, the multi-layer track type intelligent sorting device embodiment eight adopts a centrally-located package feeding structure, which can also be regarded as a non-terminal package feeding structure, and the sorting trolley can move towards the left and right sides of the package feeding area 11 along the extension direction of the rack 10. Compared with the terminal package feeding structure adopted by the multi-layer track type intelligent sorting device embodiment five, under the premise of arranging the same number of material falling chutes 61, the centrally-located package feeding structure can relatively shorten the distance of single round trip of the sorting trolley 20 between the package feeding area 11 and the material falling chute 61, and reduce the stroke of single reciprocating motion of the sorting trolley 20; under the premise of the same stroke of single reciprocating motion of the sorting trolley 20, the centrally-located package feeding structure can arrange more material falling chutes 61. Ultimately, the multi-layer track type intelligent sorting device embodiment eight with the centrally-located package feeding structure can greatly improve the sorting efficiency. At the same time, the multi-layer track type intelligent sorting device embodiment eight is also applicable to the case where the length of the rack 10 is relatively long and the number of the material falling chutes 61 and the material receiving frames 52 is relatively large.

[0234] In summary, the multi-layer track type intelligent sorting device has the following advantages:

[0235] 1. The device has the characteristics of low cost, simple operation, easy maintenance, high sorting rate, high accuracy, high compatibility of goods size, etc., which can improve the secondary sorting efficiency of goods, reduce the investment in the secondary sorting link, reduce the labor input and improve the sorting accuracy. 2. The device can realize manual / automatic feeding and can quickly and accurately sort the goods to the specified position. 3. The trolley transmission is a track type direct transmission structure, the package feeding is vertical, the feeding direction is consistent with the running direction, and the stability of the goods can be maintained in the maximum way.

[0236] The above embodiments are only illustrative of the principles of the present application and its efficacy, and are not intended to limit the present application. Any modification or change made by any person skilled in the art without departing from the spirit and scope of the present application shall be covered by the claims of the present application.

Claims

1. A multi-layer track-type intelligent sorting device, characterized by: The multi-layer track-type intelligent sorting device comprises a frame (10), a plurality of layers of tracks (12) distributed vertically, a sorting trolley (20) movably mounted on each track (12), a sorting drive assembly (70) for moving the sorting trolley (20) on the track (12), and a package supply unit. The plurality of layers of the tracks (12) are fixedly mounted on the frame (10), a package supply area (11) is provided on the side of the frame (10), and the package supply unit is arranged in the package supply area (11) and supplies sorted objects to the sorting trolleys (20) on each layer.

2. The multi-layer track-type intelligent sorting device according to claim 1, characterized in that: The package supply unit comprises a package supply conveying device (30) and a package supply lifting device (40). The package supply conveying device (30) comprises a package supply machine base (31) and a package supply conveying assembly (32) arranged on the package supply machine base (31). The package supply lifting device (40) is connected between the package supply conveying device (30) and the sorting trolleys (20) at each layer. The package supply lifting device (40) has a lifting conveying trolley (45) that can move up and down.

3. The multi-layer track-type intelligent sorting device according to claim 2, characterized in that: The bag supply lifting device (40) further comprises a frame-shaped bracket (41), at least one pair of lifting synchronous pulleys (42) arranged in an upper and lower distribution in the frame-shaped bracket (41), a lifting synchronous belt (43) arranged between the pair of upper and lower lifting synchronous pulleys (42), and a lifting servo motor (44) arranged on the frame-shaped bracket (41), wherein the lifting servo motor (44) is in transmission connection with the lifting synchronous pulley (42), and the lifting synchronous belt (43) is connected to the lifting conveying trolley (45).

4. The multi-layer track-type intelligent sorting device according to claim 2, characterized in that: The bag supply lifting device (40) further comprises a vertical beam (46), a lifting servo motor (44) arranged on the vertical beam (46), a lifting guide rail (47) fixed to one side of the vertical beam (46), and a lifting slider (48) slidingly matched with the lifting guide rail (47); the lifting servo motor (44) is transmission-connected to the lifting and conveying trolley (45); and the lifting slider (48) is fixedly connected to the lifting and conveying trolley (45).

5. The multi-layer track-type intelligent sorting device according to any one of claims 2 to 4, characterized in that: The lifting conveying trolley (45) comprises a lifting conveying bracket, a pair of lifting rollers rotatably mounted on the lifting conveying bracket, and a lifting conveying belt connected to the pair of lifting rollers.

6. The multi-layer track-type intelligent sorting device according to claim 2, characterized in that: The package supply conveying assembly (32) comprises a package supply conveying bracket, a package supply driving source (321) mounted on the package supply conveying bracket, a pair of package supply rollers (322) rotatably mounted on the package supply conveying bracket, and a package supply conveying belt (323) connected to the pair of package supply rollers (322); the package supply conveying bracket is fixedly connected to the package supply machine base (31); and the package supply driving source (321) is transmission-connected to the package supply rollers (322).

7. The multi-layer track-type intelligent sorting device according to claim 6, characterized in that: There are multiple groups of package supply and conveying components (32), and the package supply driving sources (321) of the multiple groups of package supply and conveying components (32) are independent of each other; along the conveying direction of the package supply conveyor belt (323), the multiple groups of package supply and conveying components (32) are connected in sequence and are distributed in a stepped manner from high to low, and two adjacent groups of package supply and conveying components (32) are arranged closely together.

8. The multi-layer track-type intelligent sorting device according to claim 6, characterized in that: There are multiple groups of the bag supply and conveying components (32), and a triangular area (318) is formed between two adjacent groups of the bag supply and conveying components (32). The bag supply roller (323) is a small-diameter roller with a diameter not greater than 40 mm.

9. The multi-layer track-type intelligent sorting device according to claim 8, characterized in that: The package supply drive source (321) is a motor. Each set of the package supply conveying components (32) also includes a transmission roller (36) rotatably supported in the package supply machine base (31), a first pulley (371) fixed on the motor shaft of the package supply drive source (321), a second pulley (372) fixed on the transmission roller (36), and a pulley transmission synchronous belt (373) connected between the first pulley (371) and the second pulley (372). The transmission roller (36) contacts and cooperates with the inner circumference of the package supply conveying belt (323) and is distributed on the lower side of a pair of package supply rollers (323). The diameter of the transmission roller (36) is larger than the diameter of the package supply roller (323).

10. The multi-layer track-type intelligent sorting device according to claim 1, characterized in that: The sorting trolley (20) comprises a frame (21), a pair of sorting rollers (22) rotatably mounted on the frame (21), and a sorting conveyor belt (23) connected to the pair of sorting rollers (22).

11. The multi-layer track-type intelligent sorting device according to claim 10, characterized in that: The sorting trolley (20) further comprises a pair of side limit blocks (24) both mounted on the vehicle frame (21), and a pair of main limit blocks (26) both mounted on the vehicle frame (21); a first opening (231) and a second opening (232) are formed between the sorting conveyor belt (23) and the pair of side limit blocks (24); the first opening (231) and the second opening (232) are distributed at both ends of the sorting conveyor belt (23) along the conveying direction of the sorting conveyor belt (23); and the main limit block (26) is movably mounted on the vehicle frame (21) to close or open the first opening (231) and the second opening (232).

12. The multi-layer track-type intelligent sorting device according to claim 11, characterized in that: Each of the main limit stoppers (26) comprises two limit gates (261) rotatably mounted on the vehicle frame (21); the sorting trolley (20) is provided with a stopper driving source (27) at each limit gate (261) and connected to each limit gate (261); the stopper driving source (27) is fixed to the vehicle frame (21).

13. The multi-layer track-type intelligent sorting device according to claim 11, characterized in that: The sorting trolley (20) further comprises a lifting drive source and a lifting transmission unit mounted on the vehicle frame (21); a pair of main limit stops (26) are both mounted on the vehicle frame (21) in a liftable manner; the lifting drive source is connected to the pair of main limit stops (26) through the lifting transmission unit and drives the pair of main limit stops (26) to rise and fall synchronously.

14. The multi-layer track-type intelligent sorting device according to claim 1, characterized in that: The invention also includes a material receiving device (50) and a material blanking mechanism (60) both of which are arranged on the outer side of the frame (10); the material receiving device (50) includes a shelf (51) and a plurality of material receiving frames (52) which are installed on the shelf (51) and distributed in an array; the material blanking mechanism (60) includes a chute bottom plate (62) fixed to the frame (10) and a plurality of partitions (624) which are installed on the chute bottom plate (62); a plurality of material blanking chutes (61) distributed in an array are formed between the chute bottom plate (62) and the plurality of partitions (624); the plurality of material blanking chutes (61) correspond one to one to the plurality of material receiving frames (52).

15. The multi-layer track-type intelligent sorting device according to claim 14, characterized in that: The chute bottom plate (62) has a first side edge (6211) close to the sorting trolley (20) and a second side edge (6212) away from the sorting trolley (20). The blanking mechanism (60) is provided with a flexible stopper (63) on the first side edge (6211) of the chute bottom plate (62). The flexible stopper (63) includes a plurality of flexible strips (631) arranged at intervals.

16. The multi-layer track-type intelligent sorting device according to claim 1, characterized in that: The sorting drive assembly (70) includes at least one set of synchronous belt transmission assemblies, wherein the synchronous belt transmission assembly includes a pair of trolley synchronous pulleys (71) rotatably mounted on the frame (10), a trolley synchronous belt (72) connected between the pair of trolley synchronous pulleys (71), and a trolley servo motor (73) connected to one end of the trolley synchronous pulley (71). The extension direction of the trolley synchronous belt (72) is parallel to the extension direction of the track (12), and the frame (21) of the sorting trolley (20) is fixedly connected to the trolley synchronous belt (72).

17. The multi-layer track-type intelligent sorting device according to claim 1, characterized in that: The package supply unit comprises package supply openings arranged at the package supply area (11) and matched with the track (12) and distributed in an upper and lower manner, and a package supply assembly arranged at each package supply opening, wherein the package supply assembly comprises a package supply chute (80).

18. The multi-layer track-type intelligent sorting device according to claim 1, characterized in that: The package supply unit comprises package supply openings arranged at the package supply area (11) and matched with the track (12) and distributed in an upper and lower manner, and a package supply assembly arranged at each package supply opening, wherein the package supply assembly comprises a package supply conveying vehicle (90).

19. The multi-layer track-type intelligent sorting device according to claim 1, 2, 17 or 18, characterized in that: The package supply area (11) and the package supply unit are arranged at non-end positions in the extension direction of the frame (10); along the extension direction of the frame (10), sorting trolleys (20) and sorting drive components (70) are provided on both sides of the package supply unit, and the sorting drive components (70) on both sides are staggered at the package supply area (11), so that the movement strokes of the sorting trolleys (20) on both sides have overlapping sections at the package supply area (11).

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