CN111570296B - Mail quick sorting device and sorting method thereof - Google Patents

Mail quick sorting device and sorting method thereof Download PDF

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Publication number
CN111570296B
CN111570296B CN202010438515.5A CN202010438515A CN111570296B CN 111570296 B CN111570296 B CN 111570296B CN 202010438515 A CN202010438515 A CN 202010438515A CN 111570296 B CN111570296 B CN 111570296B
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sorting
flexible
mail
sorter
time
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CN111570296A (en
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李承刚
杨登友
龚永红
周勇
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Chengdu Best Postal Equipment Manfucturing Co ltd
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Chengdu Best Postal Equipment Manfucturing Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C3/00—Sorting according to destination
    • B07C3/10—Apparatus characterised by the means used for detection ofthe destination
    • B07C3/14—Apparatus characterised by the means used for detection ofthe destination using light-responsive detecting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C3/00—Sorting according to destination
    • B07C3/02—Apparatus characterised by the means used for distribution
    • B07C3/08—Apparatus characterised by the means used for distribution using arrangements of conveyors
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
    • G05B19/054—Input/output
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Sorting Of Articles (AREA)

Abstract

The invention discloses a mail quick sorting device and a sorting method thereof, and the device comprises a conveyor, a code scanning device and a control device, wherein the outlet end of the conveyor is provided with a plurality of flexible sorters which are connected in series along a Z-shaped path, the signal output end of the control device is respectively connected with each flexible sorter, and mails are transmitted to the next flexible sorter or mail sorting points matched with mail addresses by controlling the transmission direction of the flexible sorters; the signal input end of the control device is connected with the code scanning device; the control device controls the sorting action of each flexible sorter by generating a specific time instruction and action instruction for each flexible sorter, thereby not only simplifying the control instruction and improving the stability and reliability of equipment operation, but also improving the sorting efficiency of the mails by an automatic sorting mode, prolonging the delivery time of couriers to the maximum extent and improving the delivery efficiency and user experience.

Description

Mail quick sorting device and sorting method thereof
Technical Field
The invention relates to the technical field of mail sorting processing, in particular to a quick mail sorting device and a sorting method thereof.
Background
With the rapid development of electronic commerce in China, the logistics express industry is driven to fly, a higher level is provided for the logistics industry, and the sorting equipment needs to be continuously explored in the face of more and more packages and complicated package destinations;
at present, a large number of mail delivery parts and large sorting centers are distributed in each area of a city, and mails are firstly primarily screened by the large sorting centers and then are conveyed to the corresponding delivery parts to be distributed by couriers; the existing primary delivery part cannot be provided with large-scale automatic sorting equipment due to the limitation of the operation space, so that a courier selects mails belonging to the self-distribution range before the daily mail distribution in a manual screening mode, the sorting mode is low in speed, and occupies a large amount of distribution time of the courier (most of the couriers start distribution after 10 am), so that the distribution efficiency is influenced, and the user experience is poor; and after the parcel is sorted, the parcel needs to be put together, and then the parcel is loaded after the sorting is finished, so that the operation space of the delivery part is limited, and when a plurality of couriers simultaneously carry out manual sorting, the confusion of mails is easy to occur, and the delivery efficiency and the user experience of the mails are further reduced.
Disclosure of Invention
The invention discloses a mail quick sorting device and a sorting method thereof, aiming at the defects of low mail sorting speed, low distribution efficiency and poor user experience in the prior art.
The invention realizes the aim through the following technical scheme:
a mail quick sorting device comprises a conveyor, a code scanning device and a control device, wherein a flexible sorting device is arranged at the outlet end of the conveyor, the flexible sorting device comprises a plurality of flexible sorters which are connected in series along a Z-shaped path, the signal output end of the control device is respectively connected with each flexible sorter, and mails are conveyed to the next flexible sorter or a mail sorting point matched with mail addresses by controlling the conveying direction of the flexible sorters; and the signal input end of the control device is connected with the code scanning device.
Preferably, the flexible sorting device comprises a rack and a conveying belt arranged on the rack, a first outlet and a second outlet are respectively arranged at the front side and the rear side of the flexible sorting device along the moving direction of the conveying belt, a feeding hole is formed in one side perpendicular to the moving direction of the conveying belt, the first outlet is connected with a corresponding mail sorting point, and the second outlet is communicated with the feeding hole of the next-stage flexible sorting device.
Preferably, the control device comprises a PC control terminal, a PLC control box and PCB control panels respectively arranged on the flexible sorters, the PC control terminal is in communication connection with the PLC control box, the signal output end of the PLC control box is respectively connected with the input end of each PCB control panel and the conveyor, and the signal input end of the PLC control box is respectively connected with the output end of the code scanning device and the output end of the PLC control panel.
Preferably, the outlet of the flexible sorter at the end is provided with a recovery receptacle dedicated to collecting unidentified address information or damaged mail, and the mail sorting point is provided with a mail receiving receptacle for collecting mail.
Preferably, the exit end of the flexible sorter is provided with a photoelectric sensor, and the signal output end of the control device is also connected with an alarm device.
Correspondingly, the invention also discloses a mail quick sorting method adopting the sorting device, which is characterized by comprising the following steps:
s1, scanning the mail to obtain the address information of the mail;
s2, according to the address information obtained in the step S1 and the preset mail sorting point information, the control device plans the sorting path of the mail and generates corresponding action instructions and time instructions for each flexible sorter involved in the sorting path;
and S3, the control device sends the action command and the time command to the corresponding flexible sorting device, and the flexible sorting device acts according to the corresponding action command and the time command and conveys the mails to corresponding mail sorting points according to the address information to finish the sorting of the mails.
Preferably, the action command comprises a forward conveyor rotation command and a reverse conveyor rotation command, and the conveyor rotation command controls the conveyor to convey the mail to the next flexible sorter or the corresponding mail sorting point.
Preferably, the time instruction expression is T ═ N × T1;
wherein N represents the sequence number of the flexible sorter in the sorting path, and t1 represents the time required by the flexible sorter to complete a sorting job.
Preferably, the expression of the time command is T ═ N × T1+ T2;
where N denotes the sequence number of the flexible sorter in the sorting path, t1 denotes the time required for the flexible sorter to complete a sorting job, and t2 denotes the time interval between completion of the address scan and entry into the first flexible sorter.
Preferably, step S3 further includes a failure determination and alarm execution action, where the start trigger condition is: t is greater than t 1K 1 or t is less than t 1K 2;
in the formula, t1 represents the time required by the flexible sorter to complete one-time sorting, K1 and K2 are constants, wherein the value range of K1 is 1.2-1.5; the value range of K2 is 0.6-0.8, and the specific value is determined according to the actual working condition; t represents the time interval between any two adjacent photosensor signal reception times.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention comprises a conveyor, a code scanning device and a control device, wherein a plurality of flexible sorters which are connected in series along a Z-shaped path are arranged at the outlet end of the conveyor, the signal output end of the control device is respectively connected with each flexible sorter, and mails are transmitted to the next flexible sorter or mail sorting points matched with mail addresses by controlling the transmission direction of the flexible sorters; the signal input end of the control device is connected with the code scanning device; when the flexible sorting device is used, a code scanning device is used for scanning the mails to obtain the address information of the mails, the information is adapted to the address information of a preset mail sorting point, a sorting path of the mails is further planned, a corresponding action instruction and a time instruction are generated for each flexible sorting device related to the path, and the flexible sorting device executes the corresponding action instruction according to the time instruction, so that the mails are transmitted to a specific mail sorting point or a next-stage flexible sorting device, and sorting of one mail is completed;
compared with the prior art, the invention realizes the rapid sorting of the mails, and particularly for the delivery points distributed in various places of cities, the device can replace the traditional manual sorting operation of couriers, thereby compressing the daily sorting time of the couriers to the minimum, and the couriers have more time for delivering the mails, thereby improving the mail delivery efficiency, enabling users to take the mails faster and improving the use experience to the maximum extent;
secondly, the mails in different distribution areas are placed in a classified mode, a courier only needs to extract the mails from the mail sorting points matched with the distribution areas, the mails can be transferred between the sorting points and the loading points at the highest speed, a large number of mails are prevented from being accumulated in the sorting areas, and particularly for the distribution points with limited working spaces, the utilization rate of the working spaces can be improved, the mails can be prevented from being mixed, and the distribution efficiency can be improved;
finally, because each flexible sorter is independent equipment, the number of the flexible sorters can be flexibly adjusted according to the delivery requirements of the delivery part, the required operation space can be better matched with the actual conditions of the delivery part, and meanwhile, the flexible sorters can be applied to a large-scale sorting center by arranging more flexible sorters, so that the application range of the equipment is expanded to the maximum extent, and the flexible sorters have better market application prospect and economic value.
2. According to the invention, the outlet of the flexible sorting device at the tail end is provided with the recovery container which is specially used for collecting unidentified address information or damaged mails, and the mail sorting point is provided with the mail receiving container for collecting the mails, so that on one hand, all unidentified addresses or damaged mails can be recovered by the recovery container, and the normal mail sorting is prevented from being interfered by the damaged mails, on the other hand, the mails are collected by the containers, and a courier can transport a large amount of mails at one time by moving the containers, so that the carrying efficiency is improved, more time is provided for dispatching the mails, and the working efficiency is improved.
3. The invention arranges a photoelectric sensor at the outlet end of the flexible sorter, the signal output end of the control device is connected with an alarm device, the photoelectric sensor senses whether the mail is successfully sent out at the outlet end, and simultaneously, by detecting the time interval between two adjacent signals transmitted by the same photoelectric sensor, since the conveying speed of the flexible sorters is fixed, the time during which the mail remains on each flexible sorter is fixed, and if the mail slips off the conveyor due to friction or the like, the corresponding dwell time will be extended, a large cumulative error will occur after the mail has passed through the flexible sorters and cause erroneous sortation, therefore, the mails which are not suitable for sorting can be rapidly screened by comparing the measured time with the set time, manual sorting is carried out in an alarming mode, and the sorting accuracy of the equipment is improved.
4. According to the invention, each flexible sorter is controlled in a mode of combining action instructions and time instructions, wherein the action instructions control the rotation direction of a conveyor belt of the flexible sorter, and the time instructions are used for controlling the execution time of corresponding actions; the flexible sorting device has the advantages that the sorting speed is the same, the time required by each piece of mail is the same, and the time for executing the action of each flexible sorting device is determined by the position of the flexible sorting device, so that the time for the mail to reach a specific flexible sorting device and the sorting action of the flexible sorting device are determined in the process of relay conveying and sorting of the mail through the flexible sorting device, and the flexible sorting device has a certain arrangement rule;
for example, the sorting path of a certain mail involves 1 to 5 flexible sorters, the sorting time of each flexible sorter is 1s, and meanwhile, the system sets that the mail is transferred to the next flexible sorter in forward rotation, otherwise, the mail is transferred to a mail sorting point, and in the mail sorting process, the actions of the five flexible sorters are respectively: after receiving the control signal 1s, the motor rotates forwards; after receiving the control signal for 2s, the motor rotates forwards; after receiving the control signal for 3s, the motor rotates forwards; after receiving the control signal for 4s, the motor rotates forwards; after receiving the control signal for 5s, the motor rotates reversely;
for the same flexible sorter, the executed command fails, the newly generated command continues to be queued for execution, so that a closed command cycle is formed, the flexible sorter can complete the continuous sorting of the mails only by sequentially executing the commands according to the scheduled sequence, and the flexible sorter has simple action instructions and high accuracy; compared with the prior art, the invention simplifies the equipment and the control program by skillfully applying the control instruction, improves the reliability and the stability of the equipment, realizes the quick sorting of the mails and improves the working efficiency of couriers;
in the continuous sorting process of the mails, sorting personnel place the mails on a conveyor one by one according to a certain distance, each mail sequentially passes through a code scanning device according to the placing sequence, a control device generates corresponding action instructions and time instructions for each flexible sorter according to the scanning sequence and sends the instructions to the flexible sorters according to the sequence, the flexible sorters sequentially execute according to the receiving sequence to complete the continuous sorting of the mails, the commands executed by a PCB (printed circuit board) fail, and the newly received action instructions and time instructions continue to be queued in sequence to be executed, so that the continuous and quick sorting of the mails is completed;
compared with the prior art, the method and the device control the equipment according to the mail transmission rule, greatly simplify hardware and software of the equipment, are more reliable and stable in work, improve sorting speed, allow couriers to have more time to dispatch mails, and improve work efficiency and user experience.
5. The time instruction expression of the invention is T-N T1+ T2, and the time instruction expression is used in a flexible sorter and a conveying device; the time from scanning to sorting of the mail is factored in by the setting of t2, further improving the accuracy of mail sorting.
6. The invention also comprises a fault judgment and alarm execution action, and the starting triggering conditions are as follows: t is greater than t 1K 1 or t is less than t 1K 2; in the mail sorting process, if the friction of a mail package is small, the mail package is easy to slide relative to the conveying direction in the conveying process, so that the sorting time of the flexible sorting device is prolonged, if the mail passes through a plurality of flexible sorting devices, a very large accumulated error can be generated, and the mail sorting of the whole system is further disturbed; due to the fact that the mail is conveyed at an angle between different flexible sorters, and the like, the distance between the mails is reduced, and even one flexible sorter needs to sort two mails at the same time; therefore, the mails which are not suitable for sorting can be quickly screened by comparing the measured time with the set time, the equipment is stopped in time, the operators are reminded to carry out manual sorting in an alarming mode, and the sorting accuracy and reliability of the equipment are improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the flexible sorter of the present invention;
FIG. 3 is a top view of the flexible sorter of the present invention
FIG. 4 is a flow chart of mail sorting according to the present invention;
reference numerals: 1. conveyer, 2, sweep yard device, 3, controlling means, 4, flexible sorter, 5, mail sorting point, 31, PC control terminal, 32, PLC control box, 33, alarm device, 41, frame, 42, conveyer belt, 43, first export, 44, second export, 45, feed inlet, 46, photoelectric sensor, 48, motorized pulley, 51, recovery tank, 52, mail collecting container.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following embodiments.
Embodiment mode 1
The present embodiment is a best embodiment of the present invention, and discloses a mail quick sorting device, which has a specific structure as shown in fig. 1 and fig. 3, and includes a conveyor 1, a code scanning device 2 and a control device 3, where the code scanning device 2 is a device used for scanning a mail label in the prior art, and is disposed at an outlet end of the conveyor 1;
the outlet end of the code scanning device 2 is provided with a flexible sorting device, the flexible sorting device comprises a plurality of flexible sorters 4, each flexible sorter 4 comprises a rack 41, two ends of each rack 41 are provided with electric rotary drums 48, a conveyor belt 42 is sleeved between the two electric rotary drums 48, the front conveying direction and the rear conveying direction of each conveyor belt 42 are respectively a first outlet 43 and a second outlet 44, and one side of each second outlet 44 is provided with a photoelectric sensor 46; a feed port 45 is arranged on one side perpendicular to the moving direction of the conveyor belt 42, a baffle is arranged on the other side, a PCB control board is arranged on the back of the baffle, when the flexible sorting device is installed, a first outlet 43 of the flexible sorting device 4 is connected with a mail sorting point 5, a mail receiving container 52 for collecting mails is placed on the mail sorting point 5, a second outlet 44 is opposite to the feed port 45 of the next flexible sorting device 4, so that all the flexible sorting devices 4 are connected in series according to a Z-shaped path, the feed ports 45 of the flexible sorting devices 4 placed at the head and the tail are opposite to the outlet end of the conveyor 1, and any one or two of the first outlet 43 and the second outlet 44 of the flexible sorting device 4 positioned at the tail end are provided with a recovery container 51 specially used for collecting unidentifiable address information or damaged mails;
the control device 3 comprises a PC control terminal 31 and a PLC control box 32, and the PC control terminal 31 is in communication connection with the PLC control box 32; the signal output part of the PLC control box 31 is connected with the conveyor 1, the signal input part of the PLC control box is connected with the code scanning device 2, the signal output part of the PLC control box 32 is connected with the signal input part of the PCB control panel through an RS485 bus, and the signal input part of the PLC control box is connected with the signal output part of the PCB control panel through a CAN bus, so that control and signal transmission of each device are realized.
Embodiment mode 2
This embodiment, which is a basic embodiment of the present invention and is shown in fig. 4, discloses a mail quick sorting method, and specifically describes the sorting method by taking a mail which is supposed to be transferred from the fifth flexible sorter to the mail sorting point as an example, and includes the following steps:
s1, the sorting personnel sequentially place the mails on the conveyor, and meanwhile, the labels of the mails are guaranteed to be over against the code scanning device; when the mail passes through the code scanning device, the code scanning device scans the bar code information on the label and transmits the bar code information to the control device, the control device uploads the bar code information to a system server of an express company, and the system server captures corresponding address information according to the bar code information and feeds the address information back to the control device;
s2, the control device compares the acquired address information with the address information preset for each mail sorting point to determine the mail sorting point to which the mail needs to be transmitted, plans the sorting path, and confirms the flexible sorters related to the path, and does not generate specific action instructions and time instructions for each flexible sorter; the generation rule of the action instruction is as follows:
since the mail is to be transferred to the mail sorting point at the fifth flexible sorting device, all of the first four flexible sorting points execute a command for transferring the mail to the next flexible sorting device, and the fifth flexible sorting device executes a command for transferring the mail to the mail sorting point, if it is previously set that the forward rotation is a transfer to the next flexible sorting device and the reverse rotation is a transfer to the mail sorting point, the operation instructions of each flexible sorting device are as shown in the following table
Device ordering 1 2 3 4 5
Motion command Is just Is just Is just Is just Inverse direction
The above exemplary time-regular production instructions are as follows:
assuming that the time t1 required for each mail piece of the flexible sorting device can be confirmed to be 1s by adjusting the rotation speed of the motorized roller, and that each flexible sorting device has a specific sequence number N (N is 1, 2, 3, 4, 5) in sequence, the time commands for each flexible sorting device are as shown in the following table
Figure GDA0003528103990000101
Figure GDA0003528103990000111
S3, the control device sends the one-to-one corresponding action command and time command to each corresponding flexible sorting device, and each flexible sorting device performs the following operations according to the action command and time command:
the first flexible sorter receives the signal 1s and then forwards rotates, and the mail is conveyed to the next flexible sorter;
the second flexible sorter receives the signal for 2s and forwards rotates, and the mail is transmitted to the next flexible sorter;
for the third flexible sorter, after receiving the signal 3s, the third flexible sorter rotates forwards, and the mail is transmitted to the next flexible sorter;
for the fourth flexible sorter, forward rotation is carried out after the signal is received for 4s, and the mail is transmitted to the next flexible sorter;
for the fifth flexible sorter, the flexible sorter reverses after receiving the signal 5s, and the mail is conveyed to a mail sorting point to complete the mail sorting;
when the mails are continuously sorted, sorting personnel place the mails on a conveyor one by one at a certain interval, each mail sequentially passes through the code scanning device according to the placing sequence, the control device generates corresponding action instructions and time instructions for each flexible sorter according to the scanning sequence and sends the instructions to the flexible sorters according to the sequence, the flexible sorters sequentially execute the received sequences to complete the continuous sorting of the mails, the commands executed by the PCB control board fail, and the newly received action instructions and time instructions continue to be queued in sequence to wait for execution, thereby completing the continuous and rapid sorting of the mails.
Embodiment 3
This embodiment discloses a method for quickly sorting mail, which is a preferred embodiment of the present invention, and specifically describes the sorting method by taking the mail which is supposed to be transferred from the fifth flexible sorter to the mail sorting point as an example, and includes the following steps:
s1, the sorting personnel sequentially place the mails on the conveyor, and meanwhile, the labels of the mails are guaranteed to be over against the code scanning device; when the mail passes through the code scanning device, the code scanning device scans the bar code information on the label and transmits the bar code information to the control device, the control device uploads the bar code information to a system server of an express company, and the system server captures corresponding address information according to the bar code information and feeds the address information back to the control device;
s2, the control device compares the acquired address information with the address information preset for each mail sorting point to determine the mail sorting point to which the mail needs to be transmitted, plans the sorting path, and confirms the flexible sorters related to the path, and does not generate specific action instructions and time instructions for each flexible sorter; the generation rule of the action instruction is as follows:
since the mail is to be transferred to the mail sorting point at the fifth flexible sorting device, all of the first four flexible sorting points execute a command for transferring the mail to the next flexible sorting device, and the fifth flexible sorting device executes a command for transferring the mail to the mail sorting point, if it is previously set that the forward rotation is a transfer to the next flexible sorting device and the reverse rotation is a transfer to the mail sorting point, the operation instructions of each flexible sorting device are as shown in the following table
Device ordering 1 2 3 4 5
Motion command Is just Is just Is just Is just Inverse direction
The production instructions for the above exemplary time rules are as follows:
assuming that the time t1 required for each piece of mail of the flexible sorting device can be confirmed to be 1s by adjusting the rotating speed of the electric roller, and each flexible sorting device has a specific sequence number N (N is 1, 2, 3, 4, 5) according to the sequence, and assuming that the time required for the mail to be conveyed to the first-stage flexible sorting device after the mail is scanned is t 2s which is 2s, the time command of each flexible sorting device is as shown in the following table
Device ordering 1 2 3 4 5
Time instruction 1*1+2＝3s 1*2+2＝4s 1*3+2＝5s 1*4+2＝6s 1*5+2＝7s
S3, the control device sends the one-to-one corresponding action command and time command to each corresponding flexible sorting device, and each flexible sorting device performs the following operations according to the action command and time command:
the first flexible sorter receives the signal 3s and then forwards rotates, and the mail is transmitted to the next flexible sorter;
the second flexible sorter receives the signal 4s and then forwards rotates, and the mail is transmitted to the next flexible sorter;
for the third flexible sorter, after receiving the signal 5s, the third flexible sorter rotates forwards, and the mail is transmitted to the next flexible sorter;
a fourth flexible sorter, which forwards rotates after receiving the signal 6s, and the mail is transmitted to the next flexible sorter;
for the fifth flexible sorter, it will reverse after receiving the signal 7s, the mail is delivered to the mail sorting point, completing the mail sorting;
embodiment 4
This embodiment, which is the best embodiment of the present invention, discloses a mail rapid sorting method, and the embodiment specifically describes the sorting method by taking a mail supposed to be transferred from the fifth flexible sorter to the mail sorting point as an example, and includes the following steps:
s1, the sorting personnel sequentially place the mails on the conveyor, and meanwhile, the labels of the mails are guaranteed to be over against the code scanning device; when the mail passes through the code scanning device, the code scanning device scans the bar code information on the label and transmits the bar code information to the control device, the control device uploads the bar code information to a system server of an express company, and the system server captures corresponding address information according to the bar code information and feeds the address information back to the control device;
s2, the control device compares the acquired address information with the address information preset for each mail sorting point to determine the mail sorting point to which the mail needs to be transmitted, plans the sorting path, and confirms the flexible sorters related to the path, and does not generate specific action instructions and time instructions for each flexible sorter; the generation rule of the action instruction is as follows:
since the mail is to be transferred to the mail sorting point at the fifth flexible sorting device, all of the first four flexible sorting points execute a command for transferring the mail to the next flexible sorting device, and the fifth flexible sorting device executes a command for transferring the mail to the mail sorting point, if it is previously set that the forward rotation is a transfer to the next flexible sorting device and the reverse rotation is a transfer to the mail sorting point, the operation instructions of each flexible sorting device are as shown in the following table
Device ordering 1 2 3 4 5
Motion command Is just Is just Is just Is just Inverse direction
The above exemplary time-regular production instructions are as follows:
assuming that the time t1 required for each piece of mail of the flexible sorting device can be confirmed to be 1s by adjusting the rotating speed of the electric roller, and each flexible sorting device has a specific sequence number N (N is 1, 2, 3, 4, 5) according to the sequence, and assuming that the time required for the mail to be conveyed to the first-stage flexible sorting device after completing scanning is t 2s is 2s, the time command of each flexible sorting device is as shown in the following table:
device ordering 1 2 3 4 5
Time instruction 1*1+2＝3s 1*2+2＝4s 1*3+2＝5s 1*4+2＝6s 1*5+2＝7s
S3, the control device sends the one-to-one corresponding action command and time command to each corresponding flexible sorting device, and each flexible sorting device performs the following operations according to the action command and time command:
the first flexible sorter receives the signal 3s and then forwards rotates, and the mail is transmitted to the next flexible sorter;
the second flexible sorter receives the signal 4s and then forwards rotates, and the mail is transmitted to the next flexible sorter;
for the third flexible sorter, forward rotation is carried out after the signal is received for 5s, and the mail is transmitted to the next flexible sorter;
a fourth flexible sorter, which forwards rotates after receiving the signal 6s, and the mail is transmitted to the next flexible sorter;
for the fifth flexible sorter, it will reverse after receiving the signal 7s, the mail is delivered to the mail sorting point, completing the mail sorting;
in the process that the flexible sorting device executes according to the action, the photoelectric sensor at the outlet of the flexible sorting device sends out a corresponding control signal due to the blocking of the mail, the control device judges whether the sorting state of the flexible sorting device is normal or not according to the time interval between two adjacent signals sent by the same received photoelectric sensor, if the sorting state is abnormal, the device is shut down, and an alarm device is triggered;
the trigger principle is as follows: if the sorting of the mail is in a normal state, the signal sent by the mail is a square wave as shown in the figure, and the time interval between two adjacent square waves is t 1;
if the transmission state is abnormal, the time interval between the signal sent by the flexible generator at the fault occurrence position and the last signal sent by the flexible generator is prolonged or shortened, specifically, as shown in the figure, the interference of error factors is considered, the triggering condition of the alarm system is set to t greater than t 1K 1 or t less than t 1K 2, (where t1 represents the time required by the flexible sorter to complete one-time sorting operation, K1 and K2 are constants, the value range of K1 is 1.2-1.5, the value range of K2 is 0.6-0.8, the specific value is determined according to the actual working condition, and t represents the time interval between any two adjacent photoelectric sensor signal receiving times), that is, t > t 1K 1 when the mail transmission is delayed, t < t 1K 2 when the mail transmission is too fast, and the control device determines whether to trigger the alarm or not according to the above conditions. Compared with the prior art, the invention simplifies the equipment and the control program by skillfully applying the control instruction, improves the reliability and the stability of the equipment, realizes the quick sorting of the mails and improves the working efficiency of couriers.

Claims (7)

1. A quick mail sorting device comprises a conveyor (1), a code scanning device (2) and a control device (3), and is characterized in that: the outlet end of the conveyor (1) is provided with a flexible sorting device, the flexible sorting device comprises a plurality of flexible sorting devices (4) which are connected in series along a Z-shaped path, the signal output end of the control device (3) is respectively connected with each flexible sorting device (4), and the mail is transmitted to the next flexible sorting device (4) or a mail sorting point (5) matched with the mail address by controlling the transmission direction of the flexible sorting devices (4); the signal input end of the control device (3) is connected with the code scanning device (2); a photoelectric sensor (46) is arranged at the outlet end of the flexible sorter (4), and the signal output end of the control device (3) is also connected with an alarm device (33);
correspondingly, the mail sorting method based on the sorting device comprises the following steps:
s1, scanning the mail to obtain the address information of the mail;
s2, according to the address information obtained in the step S1 and preset mail sorting point information, the control device plans a mail sorting path, and generates corresponding action instructions and time instructions for each flexible sorter related to the sorting path, wherein the expression of the time instructions is T-N-T1;
wherein N represents the sequence number of the flexible sorter in the sorting path, and t1 represents the time required by the flexible sorter to complete one sorting job;
s3, the control device sends the action instruction and the time instruction to the corresponding flexible sorting devices, and each flexible sorting device acts according to the corresponding action instruction and the time instruction and conveys the mails to corresponding mail sorting points according to the address information to finish the sorting of the mails;
the control device also receives the control information, and performs fault judgment and alarm execution actions, and the starting triggering conditions are as follows: t > t 1K 1 or t < t 1K 2; in the formula, t1 represents the time required by the flexible sorter to complete one-time sorting, K1 and K2 are constants, wherein the value range of K1 is 1.2-1.5; the value range of K2 is 0.6-0.8, and the specific value is determined according to the actual working condition; t represents the time interval between any two adjacent photosensor signal reception times.
2. A device for the rapid sorting of mailpieces according to claim 1, wherein: the flexible sorting device (4) comprises a rack (41) and a conveying belt (42) arranged on the rack (41), wherein a first outlet (43), a second outlet (44) and a feeding hole (45) are arranged on the rack (41), the first outlet (43) is connected with a corresponding mail sorting point (5), and the second outlet (44) is communicated with the feeding hole (45) of the next-stage flexible sorting device (4).
3. A device for the rapid sorting of mailpieces according to claim 1, wherein: controlling means (3) include PC control terminal (31), PLC control box (32) and set up the PCB control panel on each flexible sorter (4) respectively, PC control terminal (31) and PLC control box (32) communication connection, the signal output part of PLC control box (32) links to each other with the input and conveyer (1) of each PCB control panel respectively, and its signal input part links to each other with the output of sweeping yard device (2) and PCB control panel respectively.
4. A device for the rapid sorting of mailpieces according to claim 1, wherein: the outlet of the flexible sorter (4) at the end is provided with a return container (51) dedicated to collecting unidentified address information or damaged mail, and the mail sorting point (5) is provided with a mail receiving container (52) for collecting mail.
5. The rapid mail sorting apparatus of claim 1, wherein: the exit end of flexible sorter (4) is provided with photoelectric sensor (46), and the signal output part of controlling means (3) still is connected with alarm device (33).
6. A mail rapid sorting device according to claim 1, characterized in that the action commands comprise a conveyor forward rotation command and a conveyor reverse rotation command, by means of which the conveyor is controlled to convey the mail to the next flexible sorter or to the respective mail sorting point.
7. The rapid mail sorting apparatus of claim 1, wherein: the time instruction expression is T-N T1+ T2; where N denotes the sequence number of the flexible sorter in the sorting path, t1 denotes the time required for the flexible sorter to complete a sorting job, and t2 denotes the time interval between completion of the address scan and entry into the first flexible sorter.
CN202010438515.5A 2020-05-22 2020-05-22 Mail quick sorting device and sorting method thereof Active CN111570296B (en)

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US5984078A (en) * 1997-08-04 1999-11-16 United Parcel Service Of America, Inc. Automated shuttle sorter for conveyors
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