CN114210574A

CN114210574A - Matrix type express mail sorting system and express mail sorting method

Info

Publication number: CN114210574A
Application number: CN202111538515.3A
Authority: CN
Inventors: 徐洪
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-03-22
Anticipated expiration: 2041-12-15
Also published as: CN114210574B

Abstract

The invention discloses a matrix express mail sorting system and an express mail sorting method, wherein when an annular multilayer automatic pre-dividing machine receives a plurality of automatic code scanning and bag supplying machines and delivers express mails to a plurality of pre-divided express mail transfer and delivery devices, uninterrupted drop-type throwing of the plurality of automatic code scanning and bag supplying machines in an upper bag area of the annular multilayer automatic pre-dividing machine and uninterrupted delivery of the express mails to the plurality of pre-divided express mail transfer and delivery devices in a lower bag area of the annular multilayer automatic pre-dividing machine are realized. The invention solves the problems of large occupied area and low sorting efficiency of the conventional express sorting system.

Description

Matrix type express mail sorting system and express mail sorting method

Technical Field

The invention relates to the technical field of logistics sorting, in particular to a matrix type express mail sorting system and an express mail sorting method.

Background

Existing systems for sorting express items generally comprise a cross-belt sorter a and a supply table b. The bag supply table automatically supplies bags or materials to the cross belt sorting machine. The bag supplying table consists of a bag feeding operation table, a weighing sensing device, a bar code identification device and a conveying belt b 1. The upper bag operating platform, the weighing sensing equipment and the conveying belt are sequentially arranged, and the front end of the conveying belt is provided with a bar code identification device. The rear end of the conveying belt is aligned with a sorting trolley of the cross belt sorting machine. Since the rear end of the conveyor belt is butted against the cart of the cross-belt sorter, the rear end of the conveyor belt is designed as an inclined end surface b10, which results in a large footprint for the supply table. In addition, the existing sorting machine with the annular crossed belts has low running speed, so that the sorting efficiency of the express mail is influenced.

Disclosure of Invention

In order to overcome the defects in the prior art, a matrix type express mail sorting system and an express mail sorting method are provided so as to solve the problems of large occupied area and low sorting efficiency of the conventional express mail sorting system.

In order to achieve the above object, a matrix type express mail sorting system is provided, which comprises:

the annular multilayer automatic pre-dividing machine is provided with a multilayer lifting type material carrying piece in a manner of moving along the circumferential direction of the annular multilayer automatic pre-dividing machine;

the automatic code scanning and bag supplying machines are used for delivering express items to the lifting type material carrying pieces in a drop height mode and are arranged on one side of the annular multilayer automatic pre-extension machine;

a plurality of linear automatic sorting lines arranged in the same direction are arranged on the other side of the annular multilayer automatic pre-sorting machine in a clearance mode; and

the device comprises a plurality of pre-divided express delivery transfer devices, wherein the pre-divided express delivery transfer devices are arranged between the other side of the annular multilayer automatic pre-dividing machine and the linear automatic sorting line.

Further, the multilayer automatic pre-sorting machine comprises a rack; a conveying endless belt which is rotatably arranged on the frame, a driving device for driving the conveying endless belt, and a lifting device which is arranged on the belt surface of the conveying endless belt, wherein a multi-layer lifting type material carrying piece is arranged on the lifting device, the belt surface of the conveying endless belt is arranged along the vertical direction, the driving device is arranged on the rack, each layer of lifting type material loading piece comprises a plurality of material loading units for placing express items, the plurality of material loading units are arranged along the circumferential direction of the conveying endless belt, the material loading units are provided with a butt joint end and a connection end which are opposite, the connection ends of a row of material loading units corresponding to the plurality of layers of lifting type material loading pieces are connected with the lifting device, the material loading units of one row are arranged at intervals along the vertical direction, the butt joint end is arranged in the backward inclined direction towards the advancing direction of the conveying endless belt, and the material loading unit is provided with an output piece for outputting the express mail on the material loading unit; the output end of the conveying belt of the automatic code scanning and packing machine is aligned to the butt joint end; the pre-distribution express delivery transfer device is provided with a delivery end arranged below the butt joint end and a delivery end connected with the head end of the linear automatic sorting line.

Furthermore, the end face of the butt joint end and the belt face are arranged at an angle.

Further, the output piece is a belt conveyor, the belt conveyor is installed on the upper portion of the material loading unit, and the belt conveyor is arranged along the length direction of the material loading unit.

Further, the belt conveyor has an input end and an output end which are opposite, the input end is arranged at the connecting end, and the output end is arranged at the butt joint end.

Further, the material loading unit is an inclined plate, a containing groove is formed in the upper portion of the inclined plate, and the belt conveyor is installed in the containing groove.

Furthermore, the outer edge of the inclined plate is turned upwards to form a baffle, and the baffle is provided with a notch which is aligned to the butt joint end.

Furthermore, the material loading unit can be arranged on the belt surface in a turnover mode, and an electric hydraulic push rod is connected between the material loading unit and the belt surface.

The invention provides an express mail sorting method of a matrix express mail sorting system, which comprises the following steps:

before and/or when the lifting type material carrying piece of the annular multilayer automatic pre-extension machine passes through the automatic code scanning and packaging machine, the lifting type material carrying piece is lifted to ensure that a no-load lifting type material carrying piece is aligned to the automatic code scanning and packaging machine;

the automatic code scanning and packing machines respectively face the corresponding no-load lifting type material carrying piece to perform drop type throwing on the express pieces;

the lifting type loading pieces loaded with the express are moved to a plurality of pre-distribution express transit delivery devices along the circumferential direction of the annular multi-layer automatic pre-distribution machine, and the lifting type loading pieces loaded with the express are respectively thrown to the plurality of pre-distribution express transit delivery devices in a drop height mode;

the pre-sorting express delivery transfer devices input the express to a plurality of linear automatic sorting lines respectively;

and the plurality of linear automatic sorting lines convey the express mails to the mail outlets corresponding to the linear automatic sorting lines.

The matrix type express sorting system has the advantages that when the annular multi-layer automatic pre-sorting machine receives a plurality of automatic code scanning and bag supplying machines and delivers express to a plurality of pre-sorting express transit delivering devices, uninterrupted drop throwing of the plurality of automatic code scanning and bag supplying machines in an upper bag area of the annular multi-layer automatic pre-sorting machine and uninterrupted delivery of the express to the plurality of pre-sorting express transit delivering devices in a lower bag area of the annular multi-layer automatic pre-sorting machine are realized.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 is a schematic structural diagram of a prior art express sorting system.

Fig. 2 is a schematic structural diagram of a prior art bag supplying station.

Fig. 3 is a schematic structural diagram of a matrix-type express item sorting system according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of an annular multilayer automatic pre-extension machine according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a connecting node of the lifting type loading part and the conveying endless belt according to the embodiment of the invention.

FIG. 6 is a perspective view of a conveyer belt according to an embodiment of the present invention.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 3 to 6, the present invention provides a matrix type express item sorting system, including: the automatic pre-sorting machine comprises an annular multilayer automatic pre-sorting machine 1, a plurality of automatic code scanning and bag supplying machines 2, a plurality of linear automatic sorting lines 4 and a pre-sorting express delivery transferring device 3.

The annular multilayer automatic pre-extension machine 1 comprises a lifting device rack 11, a conveying ring belt 12, a driving device, a multilayer lifting type material carrying piece 13 and a lifting device.

Specifically, the endless conveyor belt 12 is rotatably mounted to the frame 11. A drive unit (not shown in the drawings) is mounted on the frame.

The multi-stage elevating type carrying member 13 is mounted on the belt surface of the endless belt 12. The multi-layer lifting type material carrying pieces are arranged on the belt surface of the conveying endless belt at intervals in the vertical direction. Specifically, the lifting type material carrying piece can be arranged on the inner side face or the outer side face of the belt face. The lifting type material carrying piece is arranged on the outer side surface of the belt surface.

In this embodiment, the driving means may be a motor. The frame is provided with a driving wheel and a driven wheel. The conveying ring belt is sleeved on the driving wheel and the driven wheel and tensioned, the motor is connected to the driving wheel through a belt or a chain wheel in a transmission mode, and then the conveying ring belt is driven to rotate along the circumferential direction of the conveying ring belt, so that the lifting type material carrying piece arranged on the belt surface of the conveying ring belt is carried to the other position from one position along the circumferential direction of the conveying ring belt.

The belt surface of the endless belt 12 is disposed in the vertical direction. The lifting type loading piece 13 of each layer comprises a plurality of loading units 131 for placing the express items. The plurality of the carrier units 131 are arranged in the circumferential direction of the endless conveyor belt 12.

The plurality of lifting devices are arranged on the belt surface of the conveying endless belt. A plurality of elevating gear set up along the circumferential direction interval of conveying clitellum, and each elevating gear sets up along vertical direction. The corresponding row of material carrying units of the multi-layer lifting type material carrying piece are arranged on the lifting device, and the row of material carrying units are arranged at intervals along the vertical direction. The multi-layer lifting type material carrying piece independently adjusts the height of the material carrying units in each row through a plurality of lifting devices.

The loading unit 131 has a docking end and a connecting end opposite to each other. The connecting end is connected with the lifting device of the belt surface of the conveying endless belt. The abutting ends of the plurality of loading units 131 are disposed in an oblique direction toward the rear of the advancing direction of the endless conveyor belt 12. The loading unit 131 is mounted with the output member 14. The output member 14 is used for outputting the express items placed on the material loading unit 131.

The annular multi-layer automatic pre-extension machine has opposite first and second sides. Automatic sweep sign indicating number confession chartered plane 2 and set up in the first side of automatic extension 1 in advance of annular multilayer. A plurality of automatic code-scanning bag feeders 2 are arranged in the circumferential direction of the endless conveyor belt 12. The output end of the conveying belt of the automatic code scanning and bag feeding machine 2 is aligned to the butt joint end of the loading unit. In this embodiment, the height that sets up of the output of the conveyer belt of automatic yard confession chartered plane is higher than the height of butt joint end of over-and-under type year material piece is swept for the express mail is swept the conveyer belt of yard confession chartered plane through automatic and is pushed and shoot and drop on the year material unit of over-and-under type year material piece.

The straight automatic sorting line 4 is arranged on the second side of the annular multilayer automatic pre-extension machine 1. The plurality of linear automatic sorting lines 4 are along the circumferential direction of the endless conveyor belt 12. The head end 41 of the linear automatic sorting line 4 is aligned with the butt end of the load cell.

In the embodiment, a pre-distribution intermediate delivery device 3 is arranged between the head end 41 of the linear automatic sorting line 4 and the butt joint end of the second side of the annular multi-layer automatic pre-distribution machine 1. The pre-distribution express delivery transfer device 3 is provided with a piece receiving end and a piece discharging end. The connecting end of the pre-distribution express delivery device 3 is arranged below the butt joint end of the loading unit. The delivery end of the pre-sorting express delivery device 3 is connected with the head end 41 of the linear automatic sorting line.

The express pieces placed on the material loading unit can be ejected, pushed and overturned by the output piece to be output in a dumping mode and the like. For example, the output member may be a hydraulic ram when the output member is ejected in an ejecting manner. The express is pushed out of the butt joint end by the output piece on the material loading unit so as to fall into the delivery end of the pre-distribution express transfer device. The connecting piece end is arranged below the butt joint end.

In the invention, the outer side of the material loading unit (namely the material loading hopper) on each layer of the annular multi-layer automatic pre-sorting machine inclines upwards, and express items thrown and delivered by the automatic code scanning and feeding machine cannot be thrown out due to centrifugal force when the annular multi-layer automatic pre-sorting machine runs at high speed.

The multi-layer material loading units in the same row (each group) can automatically move up and down before or during passing through a lower package area (a plurality of pre-distribution express mail transfer and delivery device areas), one piece loading unit loaded with express mails is kept to face the pre-distribution express mail transfer and delivery device, and the express mails are thrown to the pre-distribution express mail transfer and delivery device. And in the packing interval, the multi-layer material loading units in the same row (each group) can repeatedly move up and down as required to realize the packing quantity in unit time matched with the linear automatic sorting lines through the pre-distribution express delivery device.

The sorting process of the matrix type express mail sorting system comprises the following steps:

firstly, the butt joint end of the material loading unit is positioned below or flush with the output end of the conveying belt of the automatic code scanning and bag supplying machine through the height of the material loading unit of the lifting material loading piece in each row of the lifting device;

the express items to be sorted are conveyed to the material carrying unit of the lifting type material carrying piece on the first layer through the output end of the conveying belt of the automatic code scanning and bag supplying machine, after all the material loading units of the lifting type material loading piece on the first layer bear the express items, the lifting device adjusts the setting height of the material loading units which do not bear the express items, so that the butt joint end of the material carrying unit of the lifting material carrying piece on the second layer is below or flush with the output end of the conveying belt of the automatic code scanning and bag supplying machine, when the express is conveyed to the material loading unit on the second layer, the express conveyed to the second side of the conveying ring belt is output by the output express and falls on the pre-divided express transfer delivering device in a parabola shape, and then is input to the head end of the linear automatic sorting line through the pre-divided express transfer delivering device, and finally to a discharge port 42 where bags are loaded with quick-release items destined for the same destination.

According to the matrix type express mail sorting system, the arrangement height of the lifting type material carrying piece can be adjusted through the lifting device according to the condition of carrying express mails of the lifting type material carrying pieces of all layers on the conveying ring belt, so that the material carrying units which do not carry or output express mails are aligned to the output end of the conveying belt of the automatic code scanning and bag supplying machine. In the invention, the express items are conveyed to the material loading unit from the automatic code scanning and packaging machine, and the express items are output from the material loading unit and fall on the pre-distribution express item transfer and delivery device respectively in a parabola shape, so that the output express items can be prevented from colliding with the express items on the adjacent material loading units, and the sorting machine is compared with the traditional annular cross sorting machine (as shown in figure 1). In addition, owing to carry the material unit slant backward tilt up setting for even if the automatic extension in advance of annular multilayer is with the functioning speed operation that is higher than traditional annular cross sorting machine, the express mail that the material unit of carrying accepted also can be caught by the material unit of carrying under the great condition of centrifugal force, avoids the express mail to be thrown away at the turning of the transport clitellum of the automatic extension in advance of annular multilayer and flies, so can effectively improve express mail letter sorting efficiency.

When the automatic code scanning and feeding machine needs to feed the material carrying units on one layer and one section of lifting type material carrying pieces (a plurality of adjacent material carrying units) carry express mails, the height of one row of lifting type material carrying pieces is adjusted through the lifting device, so that the output end of a conveying belt of the automatic code scanning and feeding machine is aligned to the no-load material carrying units on other layers, the automatic code scanning and feeding machine does not need to wait for the material carrying units carrying the express mails (the automatic code scanning and feeding machine can feed the express mails) automatically, the automatic code scanning and feeding machine can feed the express mails at any time, the automatic code scanning and feeding efficiency is improved, and the express mail sorting efficiency is improved.

The matrix type express mail sorting system of the invention has the characteristics of small occupied area, large capacity, high labor efficiency, high equipment efficiency and the like.

Specifically, in this embodiment, there are four groups of 14 automatic stacking and bag feeding machines, one annular multi-layer automatic pre-sorting machine (the annular multi-layer automatic pre-sorting machine is provided with three lifting material-carrying pieces, total 162 material-carrying units), four linear automatic sorting lines (the express sorting discharge ports 224), and a pre-sorting express transfer device.

When the running speed of the linear automatic sorting line is 1.6m/s and the running speed of the annular multilayer automatic pre-sorting machine is 3m/s, the productivity per hour reaches 4 thousands of pieces, about 30 workers are used, and the occupied area is only 600 square meters.

When the trolley of the traditional annular cross sorting machine has express items, the automatic code scanning and bag supplying machine can only wait even if the machine is ready; when the annular multilayer automatic pre-extension machine is lifted, the automatic code scanning and bag supplying machine can still send the express items to the lifting type material carrying pieces on other layers of the annular multilayer automatic pre-extension machine after the annular multilayer automatic pre-extension machine is lifted.

When the traditional automatic code scanning and packing machine is used for loading and clamping shells, the trolley of the traditional annular cross sorting machine can only be empty when no express mail exists; even if the automatic code scanning and packaging machine is clamped, the early-stage cached express can still be conveyed to the pre-distribution express transfer and delivery device on the annular multi-layer automatic pre-distribution machine, so that the annular multi-layer automatic pre-distribution machine is prevented from outputting the express.

Between traditional annular cross sorting machine and traditional confession package platform, annular cross sorting machine and play between the mouth, all have the contained angle, cross the package and adjust linking path calculation complicacy well, often the contained angle crosses the package and goes out wrong phenomenon. The automatic code scanning and bag supplying machine and the annular multilayer automatic pre-extension machine dynamically eliminate the error hidden trouble that the traditional included angle cannot process through the angle matching of the automatic code scanning and bag supplying machine and the annular multilayer automatic pre-extension machine.

A conventional bag supplying table or sorting machine of a circular cross sorting machine can only idle or stop running for inspection as long as one part has a fault. According to the sorting system and the sorting method, when the sorting machine breaks down, the automatic code scanning and supplying machine and the annular multilayer automatic pre-sorting machine can operate normally; when the automatic code scanning and bag supplying machine has faults, the sorting machine and the primary sorting system operate normally, and only part of the sorting machine is affected, so that the machine cannot be stopped for inspection.

The traditional annular cross sorting machine and the package supply table are difficult to realize dynamic matching in terms of efficiency, speed and capacity, and the mismatching is difficult to balance due to the fact that the sorting machine and the package supply table directly pass through packages, so that a lot of difficulties are brought to system integration design. The sorting system of the invention can dynamically consume flow and synchronous speed at any time according to the workload, has balanced matching and very convenient operation, and ensures that the system is in the best efficiency.

The actual height of the sorting system is similar to that of the existing annular crossed belt sorting equipment, so that double-layer stacking can be carried out, and if the sorting system is in double-layer configuration, the two ends are initially divided, so that the capacity can be 8 ten thousand pieces/hour. A plant corresponds almost to the capacity of a logistics park.

The system is universal in port entry and exit sorting, large and small pieces and irregular pieces are compatible, the direction of future logistics sorting equipment is provided, and important contribution can be made to large-scale development of logistics sorting.

The matrix type express mail sorting system can automatically control express mails to be received and delivered without loading the express mails in the range of three sections (destination codes of the express mails) arranged in the same linear automatic sorting line in the same row of multilayer material loading units, and can ensure that all the express mails in the same row of multilayer material loading units can be completely packed (drop-type throwing to pre-distribution express mail transfer and delivery loading) at one time when passing through the linear sorting line section. When the annular multilayer automatic pre-sorting machine is automatically controlled to perform unpacking in the unpacking area, the unpacking is always performed according to the three code ranges set by each corresponding linear sorting line, so that the total capacity is approximately equal to the sum of theoretical capacities of a plurality of linear sorting lines at a certain speed. Although according to the principle of presorting, the total productivity can be improved through the primary sorting equipment and the plurality of linear sorting lines, the manual number of the package feeding is doubled at least, each linear sorting line needs to be in butt joint with a plurality of package feeding machines, the distance between the linear sorting lines is increased, and the utilization rate of a field is greatly reduced. If the number of the configured linear sorting lines exceeds 4, the advantages of the matrix type express mail sorting system are further improved, and the matrix type express mail sorting system can be further configured in a three-dimensional mode, so that the number of layers of the linear sorting lines is increased, the lattice openings are shared, and the sorting capacity of small express mails is increased in multiples again.

According to the annular multilayer automatic pre-sorting machine of the matrix type express item sorting system, output items in the hopper in the material loading unit can be subjected to proper speed transmission when the express items need to be delivered to the corresponding linear sorting line (connected by pre-sorting express item transfer delivery assembly), so that the express items are delivered to the pre-sorting express item transfer delivery device.

A pre-distribution express transfer delivery device is arranged between the annular multilayer automatic pre-distribution machine and the linear sorting machine. Wherein three sides of the pre-distribution express delivery device are provided with baffle plates and two sections of transmission belts. When the device is delivered to first section of drive belt with the express mail in advance to divide express mail transfer delivery device, first section of drive belt can rotate to the outside, under the cooperation of terminal surface breast board, lets the express mail adjust the position, then transfers the express mail to second section of drive belt fast when second section of drive belt does not have the express mail, and first section of drive belt waits for new express mail to deliver, and second section of drive belt delivers straight line letter sorting line with the express mail.

The linear automated sorting line may be of the cross-belt type or of another type.

In this embodiment, the end face of the butt end of the loading unit is disposed at an angle to the belt surface, rather than being disposed in the same direction as the belt surface of the endless conveyor belt. The design of the inclined end face of the loading unit enables the output end of the conveying belt of the automatic code scanning and bag supplying machine to be designed to be rectangular, and avoids the design of abnormal shapes such as the inclined end face and the like, so that the occupied area of the automatic code scanning and bag supplying machine is reduced.

In a preferred embodiment, the output member 14 is a belt conveyor, and the belt conveyor is mounted on the upper portion of the loading unit 131 and is along the length direction of the loading unit 131.

In this embodiment, the belt conveyor has an input end and an output end opposite to each other. The input end is arranged at the connecting end of the material loading unit. The output end is arranged at the butt joint end of the loading unit.

As a preferred embodiment, as shown in fig. 4, the loading unit 131 is an inclined plate. The upper part of the inclined plate is provided with a containing groove. The belt conveyor is installed in the accommodating groove.

The outer edge of the inclined plate is turned upwards to form a baffle. The baffle is provided with a notch. The gap is aligned with the butt joint end of the loading unit. The received express is output to the pre-distribution express transfer device from the gap by the output express.

In some embodiments, the loading unit 131 is reversibly mounted to the lifting device of the belt surface of the endless belt. An electric hydraulic push rod is connected between the material loading unit 131 and the belt surface of the conveying endless belt. And two ends of the electric hydraulic push rod are respectively hinged to the material loading unit and the lifting noise reduction of the belt surface of the conveying endless belt.

In some embodiments, the lifting device includes a receiving box having first and second opposing sides. The first side of the containing box is connected to the belt surface of the conveying belt, and the second side of the containing box is provided with a vertically arranged guide groove. A sliding block is arranged in the guide groove in a sliding way. The slider has opposite first and second ends. The first end of slider extends the outside of holding case, and the rack of vertical setting is installed to the second end of slider. The lifting motor is installed in the containing box, the output end of the lifting motor is coaxially connected with a gear, and the gear is meshed with the rack. The lifting motor drives the sliding block to reciprocate up and down in the guide groove through the gear and the rack, so that the row of material carrying units can lift up and down along the belt surface of the conveying endless belt.

s1: before and/or when the lifting type material carrying piece of the annular multilayer automatic pre-extension machine passes through the automatic code scanning and packaging machine, the lifting type material carrying piece is lifted to ensure that a no-load lifting type material carrying piece is aligned to the automatic code scanning and packaging machine.

Specifically, before the lifting type material carrying pieces of the annular multilayer automatic pre-extension machine automatically scan the code for the packing machine, the lifting device lifts the plurality of material carrying units in the same column to adjust the setting height of the butt joint end of the material carrying units 131 of the annular multilayer automatic pre-extension machine 1, so that the butt joint end of the material carrying unit 131 of the lifting type material carrying piece 13 of one layer of the annular multilayer automatic pre-extension machine 1 is aligned with the output end of the conveying belt of the automatic code scanning for the packing machine 2.

When the lifting type material carrying piece of the annular multilayer automatic pre-extension machine passes through the automatic code scanning and bag supplying machine, the lifting device lifts the plurality of material carrying units in the same column to adjust the setting height of the butt joint end of the material carrying unit 131 of the annular multilayer automatic pre-extension machine 1, so that the butt joint end of the material carrying unit 131 of the lifting type material carrying piece 13 of one layer of the annular multilayer automatic pre-extension machine 1 is aligned with the output end of the conveying belt of the automatic code scanning and bag supplying machine 2.

A plurality of material carrying units in the same row (each group) can automatically move up and down before passing through a packing region (a region between a plurality of automatic code scanning and packing machines) so as to keep at least one unloaded material carrying unit facing a height line of the automatic code scanning and packing machines when passing through the automatic code scanning and packing machines, and continuously receive drop type express delivery of the automatic code scanning and packing machines.

According to the requirement, when a plurality of material loading units in the same row (each group) pass through the packing area, the material loading units can repeatedly move up and down in a plurality of automatic code scanning and packing machine intervals until a plurality of material loading units in the same row are full of express items.

Because the multi-layer lifting type loading part has strong storage capacity under the condition of high-speed operation of a loop line of the annular multi-layer automatic pre-extension machine, the bag supply efficiency of the automatic code scanning and bag supplying machine can be fully exerted, and basic guarantee is provided for the improvement of the unit capacity of the whole system.

S2: and the automatic code scanning and packing machines respectively face the corresponding no-load lifting type material carrying piece to perform drop-type throwing on the express pieces.

When an empty loading unit is aligned with an automatic code scanning and packing machine, the output end of the conveying belt of the automatic code scanning and packing machine 2 conveys the express items to the empty loading unit 131.

The empty-load material carrying unit is used for automatically sweeping the stacking and packaging machine and adjusting the height, so that the height of the empty-load material carrying unit is lower than the output end of the automatic stacking and packaging machine, and the empty-load material carrying unit can receive the falling-type dropping-throwing express item of the automatic stacking and packaging machine when the automatic stacking and packaging machine is swept.

S3: the lifting type material carrying pieces loaded with the express are moved to a plurality of pre-distribution express transfer delivery devices along the circumferential direction of the annular multilayer automatic pre-distribution machine, and the lifting type material carrying pieces loaded with the express are respectively thrown in a drop height mode to the plurality of pre-distribution express transfer delivery devices.

When the material loading unit loaded with the express mail arrives at a package descending area (an area of a plurality of pre-divided express mail transfer delivery devices) along with the rotation of the conveying endless belt, after the butt joint end of the material loading unit 131 loaded with the express mail is aligned to the joint end of the pre-divided express mail transfer delivery device 3, the output piece 14 of the material loading unit 131 which has received the express mail outputs the butt joint end of the express mail, so that the express mail is thrown in a parabola shape at the joint end of the pre-divided express mail transfer delivery devices.

S4: the pre-sorting express delivery transfer devices respectively input the express to a plurality of linear automatic sorting lines.

The pre-sorting express delivery transfer device 3 conveys the express delivered to the delivery end to the head end 41 of the linear automatic sorting line 4 through the delivery end.

S5: and the plurality of linear automatic sorting lines convey the express mails to the mail outlets corresponding to the linear automatic sorting lines.

The linear automatic sorting line 4 conveys the express items at the head end thereof to the corresponding outlet 42.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. A matrix express mail letter sorting system which characterized in that includes:

2. The matrix type express mail sortation system of claim 1, wherein said multi-level automated pre-sorter comprises a rack; a conveying endless belt which is rotatably arranged on the frame, a driving device for driving the conveying endless belt, and a lifting device which is arranged on the belt surface of the conveying endless belt, wherein a multi-layer lifting type material carrying piece is arranged on the lifting device, the belt surface of the conveying endless belt is arranged along the vertical direction, the driving device is arranged on the rack, each layer of lifting type material loading piece comprises a plurality of material loading units for placing express items, the plurality of material loading units are arranged along the circumferential direction of the conveying endless belt, the material loading units are provided with a butt joint end and a connection end which are opposite, the connection ends of a row of material loading units corresponding to the plurality of layers of lifting type material loading pieces are connected with the lifting device, the material loading units of one row are arranged at intervals along the vertical direction, the butt joint end is arranged in the backward inclined direction towards the advancing direction of the conveying endless belt, and the material loading unit is provided with an output piece for outputting the express mail on the material loading unit; the output end of the conveying belt of the automatic code scanning and packing machine is aligned to the butt joint end; the pre-distribution express delivery transfer device is provided with a delivery end arranged below the butt joint end and a delivery end connected with the head end of the linear automatic sorting line.

3. The matrix type express mail sortation system of claim 2, wherein said end face of said butt end is disposed at an angle to said strip face.

4. The matrix type express mail sorting system of claim 2, wherein the output member is a belt conveyor, the belt conveyor is mounted on the upper portion of the loading unit, and the belt conveyor is along the length direction of the loading unit.

5. The matrix type express mail sortation system of claim 4, wherein said belt conveyor has an input end and an output end opposite, said input end being disposed at said link end and said output end being disposed at said butt end.

6. The matrix type express mail sorting system of claim 5, wherein the loading unit is a slant plate, an upper portion of the slant plate is formed with a receiving groove, and the belt conveyor is installed in the receiving groove.

7. The matrix type express mail sorting system of claim 6, wherein the outer edge of the slanted plate is upturned to form a flap, and wherein the flap is notched, and wherein the notch is aligned with the mating end.

8. The matrix type express mail sorting system of claim 2, wherein the loading unit is reversibly mounted on the belt surface, and an electro-hydraulic push rod is connected between the loading unit and the belt surface.

9. A method for sorting express mail in a matrix-type express mail sorting system according to any of claims 1 to 8, comprising the steps of: