CN111760802A

CN111760802A - Rail guided trolley for logistics sorting and logistics sorting system

Info

Publication number: CN111760802A
Application number: CN202010651722.9A
Authority: CN
Inventors: 叶岷; 李红果
Original assignee: Shandong Ruiji Micro Intelligent Technology Co ltd
Current assignee: Shandong Ruiji Micro Intelligent Technology Co ltd
Priority date: 2020-07-08
Filing date: 2020-07-08
Publication date: 2020-10-13

Abstract

The invention discloses an RGV traveling crane and logistics sorting system suitable for a double-layer conveyor belt, which comprises: the trolley comprises a frame, a driving wheel, a driven wheel, a first conveyor, a second conveyor, a wireless communication module, a control module and a power supply device, wherein the driving wheel and the driven wheel are arranged at the top end of the frame, the axial direction of the driving wheel and the driven wheel is in the horizontal direction, the driving wheel and the driven wheel roll on the track, the trolley is suspended on the track through the driving wheel and the driven wheel, the first conveyor and the second conveyor are fixed on the frame in two layers in the vertical direction and are respectively butted with a double-layer conveyor belt in height and position, the wireless communication module is used for receiving instructions, and the control module controls the driving wheel to operate and controls the first conveyor and the second conveyor to operate according to the instructions. According to the invention, the connection between the bag supply operation and the rail operation is smoother and more efficient, the packages corresponding to two different sorting openings can be transmitted at one time, and the sorting efficiency is improved.

Description

Rail guided trolley for logistics sorting and logistics sorting system

Technical Field

The invention relates to the technical field of logistics, in particular to a rail guided trolley for logistics sorting and a logistics sorting system.

Background

With the rise of intelligent manufacturing in the world, the logistics industry is also intelligentized, an Automatic Guided Vehicle (AGV) and a Rail Guided Vehicle (RGV) are indispensable parts of an automatic logistics system, and the intelligent trolley can carry goods, so that the intelligent trolley plays an important role in the automatic logistics system, the transportation efficiency can be improved, and the transportation cost can be reduced.

RGV has very extensive application in logistics system, has characteristics such as fast, the reliability is high, with low costs. The RGV is also called a rail shuttle trolley, and is a transport vehicle in contact with a ground guide rail. According to different functions, the system can be divided into an assembly type RGV system and a transportation type RGV system, and is mainly used for material conveying, workshop assembly and the like. The movement modes can be divided into an annular movement type and a linear reciprocating type, the annular track type RGV system has high efficiency, can simultaneously work by a plurality of vehicles and generally adopts an aluminum alloy track; linear reciprocating RGV systems typically include an RGV that moves in a reciprocating manner with relatively low efficiency compared to circular moving RGV systems. Regardless of the motion mode, the trolley mainly comprises a frame, a driving wheel, a following wheel, a front bumper, a rear bumper, a chain conveyor, a communication system, an electrical system and each cover plate. In the existing document CN110180788A, an RGV traveling crane is provided, which moves along rails criss-cross in the x and y directions, and the trolley is provided with rollers traveling along the x direction, rollers traveling along the y direction, and a jacking assembly. The RGV detects whether a package is received or not through the adhesive tape machine, and the package is fallen to the grid opening through the rotation of the adhesive tape machine, so that only one package can be conveyed at a time, the conveying efficiency is low, and the conveying cost is too high. Prior art CN209684570U discloses a high-efficient automatic sorting goods shelves, it is installed on AGV or RGV driving, and the removal letter sorting platform that drives through elevating system and correspond moves in the direction of height of goods shelves body, though install the RGV driving of this kind of letter sorting goods shelves and can sort a plurality of orders simultaneously, but remove letter sorting platform and go up and down ceaselessly, not only the equipment demand is many, the loss is big, sorts inefficiency moreover.

Disclosure of Invention

In view of the above, the present invention has been developed to provide a solution that overcomes, or at least partially solves, the above-mentioned problems. Accordingly, in one aspect of the present invention, there is provided an RGV row cart adapted for use with a double-deck conveyor, the cart comprising: the RGV traveling crane comprises a frame, a driving wheel, a driven wheel, a first conveyor, a second conveyor, a wireless communication module, a control module and a power supply device, wherein the driving wheel and the driven wheel are arranged at the top end of the frame, the axial direction of the driving wheel and the driven wheel is in the horizontal direction, the driving wheel and the driven wheel roll on a track, the trolley is suspended on the track through the driving wheel and the driven wheel, the first conveyor and the second conveyor are fixed on the frame in two layers in the vertical direction and are respectively butted with a double-layer conveying belt in height and position, the wireless communication module is used for receiving an instruction, the control module controls the driving wheel to operate and controls the first conveyor and the second conveyor to operate according to the instruction, and the power supply device supplies power for the RGV traveling crane.

Optionally, the driving wheel and the driven wheel are oppositely arranged left and right, are respectively fixed at the top end of the frame, are arranged along the running direction of the RGV, are matched with the grooves of the closed-loop I-shaped monorail and roll along the monorail.

Optionally, the driving wheel and the driven wheel are a pair of left and right opposite front wheels and a pair of left and right opposite rear wheels, the front wheels and the rear wheels are respectively fixed at the top end of the frame and are matched with the grooves of the closed loop i-shaped track, the front wheels and the rear wheels on one side roll in the grooves on the corresponding one side, and the front wheels and the rear wheels on the other side roll in the grooves on the corresponding other side.

Optionally, the driving wheel and the driven wheel are coaxially arranged left and right, fixed on a vertical plate or a vertical column at the top end of the frame, respectively matched with the grooves of the parallel double tracks and rolling along the double tracks.

Optionally, a vertical axial auxiliary wheel is arranged beside each driving wheel and each driven wheel, and the auxiliary wheel is in contact with the vertical plane of the track.

Optionally, the rear wheel is a drive wheel.

Optionally, the RGV driving vehicle further includes a positioning module, configured to collect position information of the RGV driving vehicle, and send the position information to the host through the wireless communication module.

Optionally, the power supply device is a sliding power transmission device.

The invention also provides a logistics sorting system which comprises a plurality of the RGV travelling cranes, a closed loop track, sorting ports, a bag supply device and a host, wherein the bag supply device is provided with a double-layer conveyor belt, the upper layer conveyor belt is butted with an upper layer conveyor of the RGV travelling cranes, the lower layer conveyor belt is butted with a lower layer conveyor of the RGV travelling cranes, and the RGV travelling cranes are controlled by the host to move along the closed loop track and are butted with the distributed bag supply devices and the sorting ports.

Optionally, the closed-loop track is a circular guide rail, and the system further includes a sliding power supply system composed of sliding contact line current collectors, and configured to supply power to the RGV traveling crane running on the circular guide rail.

The invention also provides a method for sorting packages by using the logistics sorting system, which comprises the following steps:

scanning a package to be dispatched;

determining whether the packages are conveyed by an upper-layer conveyor belt or a lower-layer conveyor belt according to the scanning result, and distributing RGV traveling and sorting openings for the packages;

if the movable conveyor belt is determined to be conveyed through the upper layer conveyor belt, controlling the driving mechanism to act to enable the movable conveyor belt to be in butt joint with the upper layer conveyor belt; if the movable conveyor belt is determined to be conveyed through the lower layer conveyor belt, controlling the driving part to act so that the movable conveyor belt is in butt joint with the lower layer conveyor belt;

controlling the allocated RGV travelling crane to be in butt joint with a conveyor belt of a packaging device;

controlling the conveying action of the conveyor belt of the determined bag supplying device and the corresponding conveyor of the RGV trolley so as to convey the packages onto the RGV trolley;

and controlling the RGV travelling crane to run to the distributed sorting port and enabling the conveyor to act.

The technical scheme provided in the embodiment of the application at least has the following technical effects or advantages: according to the invention, the connection between the bag supply operation and the rail operation is smoother, the system operation is accurate and efficient, the packages corresponding to two different sorting ports can be conveyed at one time and conveyed to the sorting area together, and the packages can be conveyed to different sorting ports through respective actions of the double-layer conveyor, so that the sorting efficiency is improved.

The above description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the technical solutions of the present invention and the objects, features, and advantages thereof more clearly understandable.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 shows a block diagram of an RGV row for sorting logistics according to the invention;

figures 2 and 3 show perspective views from different angles of the driven wheel and the driving wheel suspension of the RGV traveling crane matching with the track;

FIGS. 4, 5 show front and side views, respectively, showing an RGV ride;

FIG. 6 shows a partial detail view of FIG. 5;

FIG. 7 shows an overall block diagram of the logistics sorting system utilizing the RGV traveling crane proposed by the present invention;

FIG. 8 shows a state diagram of an RGV row cart docking with a pack delivery device having a double conveyor proposed by the present invention;

fig. 9 is a perspective view showing a packaging supply device in the logistics sorting system;

fig. 10 shows a side view of a supply package arrangement in the logistics sorting system;

fig. 11 shows a structure diagram of a sorting apparatus in the logistics sorting system.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

In one aspect of the present invention, as shown in fig. 1, there is provided a guided Rail Guided Vehicle (RGV) for logistics sorting, wherein the RGV traveling vehicle 40 specifically comprises: the trolley comprises a frame 401, a driving wheel 402, a driven wheel 403, an upper layer conveyor 404, a lower layer conveyor 405, a wireless communication module (not shown in the figure) and a control module (not shown in the figure), wherein the driving wheel 402 and the driven wheel 403 are arranged at the top end of the frame, the axial direction of the driving wheel and the driven wheel is the horizontal direction, the driving wheel and the driven wheel roll on the closed-loop track 20, the trolley is suspended on the track through the driving wheel 402 and the driven wheel 403, the upper layer conveyor 404 and the lower layer conveyor 405 are fixed on the frame 401 in two layers in the vertical direction and can be respectively butted with a double-layer conveyor belt for packaging, the wireless communication module 406 is used for receiving instructions, and the control module 407 controls the driving wheel to operate and controls the upper layer conveyor and the lower layer conveyor to operate according to the instructions. Compared with the transport robot in the prior art, the RGV traveling crane has a simpler structure, and mainly solves the problems of a suspended running structure and a double-layer conveyor structure; in terms of control, control is easier, mainly to control the rotation of the driving wheels, the positioning of the trolley, the respective actions of the upper and lower conveyors to transfer the packages onto the conveyors or from the conveyors into the sorting gates. Compared with the trolley with the multi-layer goods shelves in the prior art, the trolley avoids the phenomenon that a lifting mechanism frequently lifts between the multi-layer goods shelves to transfer packages onto the trolley or transfer packages from the trolley to a sorting port.

In a preferred embodiment, the driving wheel and the driven wheel are oppositely arranged left and right, are respectively fixed on two opposite side plates at the top end of the frame, are matched with a groove of a closed loop I-shaped monorail and roll along the monorail, and the closed loop monorail is an I-shaped monorail in the embodiment and is suitable for the operation of a suspended trolley. In order to ensure that the trolley runs smoothly on a single rail, auxiliary wheels which are vertical to the axial direction are arranged beside each driving wheel and each driven wheel and are in contact with the vertical plane of the rail, so that the driving wheels and the driven wheels are prevented from shaking left and right and run along a fixed track.

As an embodiment, as shown in fig. 1, 2 and 3, the wheels at the top end of the RGV vehicle may be provided as a pair of left and right opposite front wheels and a pair of left and right opposite rear wheels, the front wheels and the rear wheels are respectively fixed on two opposite side plates at the top end of the frame and are matched with the grooves of the closed loop "i-shaped" track, the front wheels and the rear wheels at one side roll in the corresponding grooves at one side, the front wheels and the rear wheels at the other side roll in the corresponding grooves at the other side, and one of the front wheels or the rear wheels is provided as a driving wheel. The pressure of the trolley on the rail can be effectively dispersed by the arrangement, the vibration of the trolley in the front and rear directions is avoided, and the trolley can be guaranteed to run more stably on the rail. In order to ensure that the trolley runs smoothly on a single rail, auxiliary wheels which are vertical to the axial direction are arranged beside each driving wheel and each driven wheel and are in contact with the vertical plane of the rail, so that the driving wheels and the driven wheels are prevented from shaking left and right and run along a fixed track.

In another embodiment, the track may be provided as a double track, and the driving wheel and the driven wheel are coaxially arranged in a left-right direction, fixed on a vertical plate or a column at the top end of the frame, respectively matched with grooves of the parallel double tracks, and roll along the double tracks. This arrangement has low track requirements and is compatible with many existing track designs. In order to further improve the running stability of the trolley, the driving wheel and the driven wheel are respectively a pair of coaxial front wheels and a pair of coaxial rear wheels or respectively a pair of coaxial rear wheels and a pair of coaxial front wheels, the front wheels and the rear wheels are fixed on a vertical plate at the top end of the frame and are matched with the grooves of the closed-loop double tracks, the front wheels and the rear wheels on one side roll in one track groove, and the front wheels and the rear wheels on the other side roll in the other track groove.

As shown in fig. 4 and 5, the RGV traveling crane provided by the invention has a small and compact structure, runs smoothly and efficiently, and can efficiently complete the work of conveying express from the parcel supply table to the sorting area. As shown in fig. 6, the running wheels including driving wheels and driven wheels are arranged on two opposite vertical plates at the top of the RGV trolley, and an auxiliary wheel in vertical axial direction is arranged beside each running wheel and is used for contacting with a vertical surface of the rail, so that the RGV trolley can run smoothly along the rail.

The RGV traveling crane also comprises a positioning module used for collecting the position information of the RGV traveling crane and sending the position information out through the wireless communication module. The operation control of each RGV travelling crane and the action control of the movable conveyor belt are both completed by the host, the host calculates the speed operation plan of each travelling crane, and the host communicates with the RGV travelling crane in real time through the wireless Ethernet, collects the position information and the speed information of the RGV and sends a control instruction to the RGV. The RGV travelling crane runs on the track according to the control instruction, runs to the position of the general sorting device and is in butt joint with the corresponding sorting port.

The RGV traveling crane further comprises a power module, wherein the power module can be of a rechargeable battery structure and can also be a sliding power transmission device, and power is taken from a cable arranged on the track through a sliding contact line current collector.

The invention also provides a logistics sorting system using the RGV travelling crane, as shown in FIG. 7, comprising at least one bag supplying device 10, a closed loop track 20, a sorting device 30, a host and at least one RGV travelling crane 40, wherein the logistics sorting system is a sliding power supply system consisting of sliding contact line current collectors and used for supplying power to the RGV travelling crane running on the closed loop track; the package supplying device is provided with an upper layer conveyor belt and a lower layer conveyor belt, the upper layer conveyor belt is in butt joint with an upper layer conveyor of the RGV travelling crane, the lower layer conveyor belt is in butt joint with a lower layer conveyor of the RGV travelling crane, so that the RGV travelling crane receives packages supplied by the package supplying device.

The logistics sorting system provided by the invention can supply and transmit packages corresponding to two different sorting ports at one time, and greatly improves the sorting efficiency, as shown in figure 8, the RGV provided by the invention has the advantages that the supply and the transmission of the packages can be efficiently realized by matching a trolley with a package supply table of a double-layer conveyor belt, and the preparation is made for transmitting to different sorting ports. Because the train is a closed loop track, the plurality of RGV travelling cranes circulate and sequentially pass along the closed loop track, the packages on the package supply platforms are continuously provided for the plurality of RGV travelling cranes, and the RGV travelling cranes travel to the corresponding sorting ports on the closed loop track and unload the packages to the corresponding sorting ports. The logistics sorting system provided by the invention not only can obtain high-efficiency sorting efficiency, but also has small floor area and saves the space.

The method for the logistics sorting system to carry out parcel sorting mainly comprises the following steps:

scanning a package to be dispatched;

controlling the conveying action of a conveyor of the packet supply device to convey the packets to the conveyor corresponding to the RGV traveling vehicle;

The RGV travelling crane provided by the invention, a closed loop track, a plurality of bag supplying devices with double-layer conveyor belts and double-layer sorting ports form a complete logistics sorting system. The present invention provides a specific embodiment of a complete logistics sorting system, but the RGV traveling crane provided by the present invention can be compatible with not only the bag supply device, the general sorting device for entering and exiting ports, which are specifically described below, but also other forms of bag supply devices with double-layer conveyor belts, sorting devices with double-layer sorting ports, and the like.

As shown in fig. 9 and 10, the packaging supply device 10 includes: the system comprises a bag supplying table 101, a movable conveyor belt 102, an upper layer conveyor belt 103, a lower layer conveyor belt 104 and a driving part 105, wherein the bag supplying table 101 is used for receiving packages to be dispatched; one end of the movable conveyor belt 102 is movably connected with the bag supplying table 101, and the other end of the movable conveyor belt is in butt joint with the upper layer conveyor belt 103 or the lower layer conveyor belt 104; and the driving part 105 is used for driving the movable conveyor belt 102 to rotate by taking one end as an axis, the other end is switched between a first position and a second position, the other end is butted with the upper layer conveyor belt 103 when in the first position, the packages are conveyed to the upper layer conveyor belt 103 through the movable conveyor belt, and the packages are butted with the lower layer conveyor belt 104 when in the second position, and the packages are conveyed to the lower layer conveyor belt 104 through the movable conveyor belt.

At confession package platform 101, be provided with scanning device (not shown in the figure), scanning device scans the parcel discernment, and host computer device is according to scanning identification information automatic determination with the parcel to upper conveyer belt or lower floor's conveyer belt to send first control signal to drive arrangement, drive arrangement is based on first control signal drive activity conveyer belt, make it with upper conveyer belt butt joint or with lower floor's conveyer belt butt joint. The invention can provide packages of two different sorting ports at one time, and then the packages are transported to the sorting ports by the RGV traveling crane with the double-layer conveyor, thereby greatly improving the package supply rate.

The feeding table comprises a horizontal conveyor belt 106, the horizontal conveyor belt 106 is movably connected with one end of the movable conveyor belt 102, and the horizontal conveyor belt 106 is positioned between the upper layer conveyor belt 103 and the lower layer conveyor belt 104 in height. The packages on the package supplying table are scanned on the desktop table and then are conveyed to the movable conveyor belt through the horizontal conveyor belt. The provision of the horizontal conveyor provides a time delay from scanning to the ready docking position of the movable conveyor, facilitating switching of the movable conveyor between the two docking positions during transport of a package by the horizontal conveyor.

The movable conveyor belt comprises a first conveyor belt 1021 and a second conveyor belt 1022, a first end of the first conveyor belt 1021 is movably connected with the bag supplying table, a second end of the first conveyor belt 1021 and a first end of the second conveyor belt 1022 are movably connected, the driving part 105 drives the movable connecting part to move between a first position and a second position, and a second end of the second conveyor belt is butted with the upper layer conveyor belt or the lower layer conveyor belt along with the movement of the movable connecting part. The second end of the second conveyor belt 1022 may slide up and down the frame. The distance between the two ends of the movable conveyor belt is constantly changed in the butt joint switching process of the movable conveyor belt with the first conveyor belt and the second conveyor belt, and the situation that the distance between the two ends is changed can be well solved under the condition that the movable conveyor belt is designed into the first conveyor belt and the second conveyor belt. When the movable conveyor belt is in butt joint with the upper-layer conveyor belt or the lower-layer conveyor belt, the distance between the first end of the first conveyor belt and the second end of the second conveyor belt is the largest, the first conveyor belt and the second conveyor belt form a plane, in the switching process, the distance between the first end of the first conveyor belt and the second end of the second conveyor belt can be changed continuously, when the second end of the second conveyor belt is located at the middle position between the upper-layer conveyor belt and the lower-layer conveyor belt, the distance between the first end of the first conveyor belt and the second end of the second conveyor belt is the smallest, and at this time, the smallest included angle is formed between the first conveyor belt and the second conveyor belt. Therefore, the first conveyor belt and the second conveyor belt are movably connected, and the best mode is rotary shaft type connection. The driving device drives the position of the other end of the movable conveyor belt to switch by applying force to the rotating shaft. The driving device can also directly apply force to the second end of the second conveyor belt to directly drive and drive the position of the other end of the movable conveyor belt to switch. The drive member is disposed below the movable conveyor belt. The driving part can select a hydraulic rod part, and can also adopt an air cylinder or a motor to drive the movable conveyor belt to act so as to be in butt joint with the upper layer conveyor belt or the lower layer conveyor belt.

As shown in fig. 9 and 10, doors 109 are provided on both vertical surfaces of the movable conveyor. The door 109 not only serves for aesthetic purposes, but also protects the active conveyor belt's operating space.

As shown in fig. 9 and 10, in order to realize the direct butt joint of the RGV travelling crane with the vertical double-layer conveyor and the package supplying device, namely, the packages supplied by the package supplying device are sequentially transferred to the corresponding conveyor on the butt joint RGV travelling crane through the package supplying platform, the horizontal conveyor, the movable conveyor, the upper layer conveyor or the lower layer conveyor, as shown in fig. 9 and 10, the upper layer conveyor of the package supplying device comprises a conveyor with a "bevel edge", namely, the upper layer conveyor and the lower layer conveyor respectively at least comprise conveying areas sequentially arranged by a plurality of strip conveyor belts with gradually shorter lengths, and the strip conveyor belts synchronously run.

As shown in fig. 11, the sorting device is disposed at both sides of the transportation rail, and the structure includes: the device comprises a soft cloth barrel 301, a third conveyor belt 302 and a guide plate 303, wherein the soft cloth barrel 301 is butted with an upper-layer conveyor of a transport trolley on a transmission rail through the third conveyor belt 302, the guide plate 303 is butted with a lower-layer conveyor of an RGV travelling crane, the guide plate comprises a fixed part 3031 and a movable part 3032, the movable part 3032 and the fixed part 3031 form a plane at ordinary times to form a first-width sorting opening, and when the movable part 3032 is erected upwards, the movable part 3032 serves as an outlet side edge to form a second-width sorting opening. The sorting device that provides here is adapted to the RGV driving that has double-deck conveyer, and lower floor's letter sorting mouth docks lower floor's conveyer from top to bottom, and letter sorting space utilization is high, and through the letter sorting mouth that sets up different width, can realize not unidimensional parcel and sort moreover, has improved the letter sorting fineness. In order to make the packages reaching the sorting opening smoothly slide into the sorting bag, side plates are arranged on two sides of the guide plate.

When the movable part is placed flat, the movable part and the fixed part form a square guide surface, the guide surface inclines downwards for a certain angle relative to a horizontal plane to form a first width outlet, and the movable part is suitable for large-size packages to fall into a bag below. The RGV driving with when the letter sorting mouth docks, the conveyer action that the RGV driving corresponds conveys the parcel to on the guide board, because the certain angle of guide board downward sloping, the parcel via under the action of gravity the guide board falls into the letter sorting bag of below in, the parcel that falls into below letter sorting bag this moment is great large size parcel. When the movable part is erected, the fixed part forms a trapezoidal guide surface, the movable part forms a side surface to form a second width outlet, and the movable part is suitable for small-size packages to fall into a bag below, so that the packages can be further sorted according to the size. The bottom of the two sides of the guide plate fixing part is provided with a support rod, the bottom of the soft cloth cylinder is provided with a support rod, and the support rod is used for fixing and receiving a bag opening of a bag wrapped by the guide plate.

The movable part is driven by a hydraulic rod, an air cylinder, a motor and the like to stand or lay flat. The driving can be controlled by a host machine, and the host machine controls the movable plate to be placed flat or erected according to the scanning information and the butt joint information of the RGV travelling crane and the sorting port. The in-out general sorting device comprises a wireless communication component, the wireless communication component receives a control signal from a host computer through a wireless network, and the driving component drives the movable plate to stand or lay flat according to the control signal.

The RGV traveling and logistics sorting system is suitable for entering-port parcel sorting and exiting-port parcel sorting, which sorting port is determined by the host according to parcel identification, the host can carry out exiting-port parcel sorting by executing an exiting-port sorting mode, the host can carry out entering-port parcel sorting by executing an entering-port sorting mode, the host determines corresponding information of a conveyor and a sorting port of a parcel and an RGV traveling vehicle, and controls a parcel feeding device, an RGV traveling and sorting device to act, and finally the parcel sorting is realized to the matched sorting port.

The logistics sorting system provided above performs a sorting process for inbound packages or outbound packages, and specifically may include the following steps:

scanning information of packages to be sorted by a scanning component of a package feeding device;

sending the scanning information to a host;

the host machine distributes RGV traveling vehicles and conveyors and sorting ports of the RGV traveling vehicles for the packages according to the scanning information and the current running information of all the RGV traveling vehicles, and feeds back distribution information to the RGV traveling vehicles for the package supplying device and distribution, wherein the distribution information comprises RGV information, conveyor information, package supplying platform information and package identification information;

the bag supplying table controls the action of the movable conveyor belt according to the distributed conveyor information so as to be in butt joint with an upper layer conveyor belt or a lower layer conveyor belt corresponding to the conveyor;

the RGV travelling crane runs to a track position corresponding to a package supplying device according to the distribution information;

conveying the packages to the determined upper layer conveyor belt or the determined lower layer conveyor belt through the operation of the movable conveyor belt;

the RGV row cart operates a conveyor to receive parcels when a parcel is detected; stopping the conveyor upon detecting receipt of a package;

after receiving the package, the RGV traveling crane sends related information to the host and receives speed operation control information of the host;

the RGV traveling crane advances to the distributed sorting ports according to the speed operation control information;

operating the conveyor to convey the packages into the sorting port and feeding current operating state information of the RGV travelling crane back to the host;

the main machine determines whether the movable plate of the sorting port needs to change states or not according to the scanning information and the sorting port information, if so, the main machine sends a control signal to the sorting port and feeds back the control signal, the driving device drives the movable plate to act according to the control signal and feeds back an action result to the main machine, the main machine sends an action instruction to a corresponding conveyor according to the action result, and the conveyor acts according to the action instruction to transmit the packages into the sorting port and fall into a sorting bag below the sorting port.

In the invention, the host, the packet supply device and the RGV traveling crane are connected through the Ethernet wireless local area network, and the packet supply device and the RGV traveling crane can be one or more. The plurality of bag supplying platforms are arranged on the outer side of the track in sequence, and after the bag supplying platforms transmit a package to one layer of conveyor of an RGV traveling crane, the host determines the package distributed to the other layer of conveyor according to the scanning information sent by the current bag supplying device and the subsequent bag supplying device. That is, the packages carried on the double-deck conveyor of an RGV row cart do not necessarily come from the same parcel table. The distribution principle is that after the first-layer conveyor is distributed, the host machine preferentially distributes the packages of the front-most package supply platform corresponding to the sorting port of the other-layer conveyor to the other-layer conveyor of the RGV travelling crane, so that the RGV travelling crane can receive and drive the packages at the fastest speed, and the subsequent RGV travelling crane is not influenced to receive the packages which are supplied to the package supply device for conveying. Therefore, the RGV travelling crane can receive the packages from the upper and lower layer conveyor belts from the package supplying platform device quickly, and continuously and circularly travels on the closed loop circular track, so that the conveying efficiency is high, and the sorting efficiency is high. And the rail guided trolley and the bag supply device are controlled by the host to act, and are universal for entering and leaving a port, so that the resource waste caused by one system for entering the port and one system for leaving the port in the prior art is avoided.

The technical scheme provided in the embodiment of the application at least has the following technical effects or advantages: the utility model provides a new there is rail guidance dolly and uses this rail guidance dolly's commodity circulation letter sorting system, can once only convey the parcel that corresponds two kinds of different letter sorting mouths, convey to the letter sorting district together, through the action separately of double-deck conveyer, can convey to different letter sorting mouths, improved letter sorting efficiency.

In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the invention and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim.

Claims

1. An RGV row cart suitable for use with a double-deck conveyor, the cart comprising: the RGV traveling crane comprises a frame, a driving wheel, a driven wheel, a first conveyor, a second conveyor, a wireless communication module, a control module and a power supply device, wherein the driving wheel and the driven wheel are arranged at the top end of the frame, the axial direction of the driving wheel and the driven wheel is in the horizontal direction, the driving wheel and the driven wheel roll on a track, the trolley is suspended on the track through the driving wheel and the driven wheel, the first conveyor and the second conveyor are fixed on the frame in two layers in the vertical direction and are respectively butted with a double-layer conveying belt in height and position, the wireless communication module is used for receiving an instruction, the control module controls the driving wheel to operate and controls the first conveyor and the second conveyor to operate according to the instruction, and the power supply device supplies power for the RGV traveling crane.

2. The RGV traveling crane of claim 1, further characterized in that the driving wheel and the driven wheel are oppositely arranged from side to side, respectively fixed on the top end of the frame and arranged along the running direction of the RGV traveling crane, matched with the groove of the closed loop ' I ' -shaped ' single rail and rolling along the single rail.

3. The RGV traveling crane of claim 2, further characterized in that the driving wheels and the driven wheels are a pair of left and right opposite front wheels and a pair of left and right opposite rear wheels, the front wheels and the rear wheels are respectively fixed on the top end of the frame and matched with the grooves of the closed loop 'I' -shaped track, the front wheels and the rear wheels on one side roll in the corresponding grooves on one side, and the front wheels and the rear wheels on the other side roll in the corresponding grooves on the other side.

4. The RGV traveling crane according to claim 1, further characterized in that the driving wheel and the driven wheel are coaxially arranged in a left-right direction, fixed on a vertical plate or a vertical column at the top end of the frame, matched with grooves of the parallel double tracks respectively and rolling along the double tracks.

5. An RGV wagon according to any of claims 2-4 further characterized in that a vertically axial auxiliary wheel is provided next to each driving and driven wheel, said auxiliary wheel being in contact with the vertical plane of the track.

6. The RGV ride according to any of claims 2-4 wherein the rear wheels are drive wheels.

7. The RGV driving cart of claim 1, further characterized by further comprising a positioning module for collecting location information of the RGV driving cart and sending the location information to the host computer through the wireless communication module.

8. An RGV ride according to claim 1 or 7 further characterized in that the power supply means is a sliding power transmission means.

9. A logistics sorting system further characterized in that it comprises a plurality of RGV carts, closed loop tracks, sorting gates, pack supply devices, hosts according to any of claims 1-8, the pack supply devices having double layer conveyor belts, the upper layer conveyor belts interfacing with upper layer conveyors of the RGV carts, the lower layer conveyor belts interfacing with lower layer conveyors of the RGV carts, the RGV carts traveling along the closed loop tracks under host control and interfacing with allocated pack supply devices, sorting gates.

10. The logistics sorting system of claim 9, wherein the closed loop track is a circular track, and the system further comprises a sliding power supply system consisting of trolley line current collectors for supplying power to the RGV travelling crane running on the circular track.

11. A method for sorting parcels using the logistics sorting system of claim 9 or 10, the method comprising:

scanning a package to be dispatched;