An automatic sorting system and a sorting method thereof without manual preliminary sorting

Abstract

The application discloses an automatic sorting system without manual preliminary sorting and a sorting method thereof. The automatic sorting system comprises a ring-shaped cross-belt sorting machine, a transfer conveyor, a feeding conveyor and an automatic pre-sorting and packing module. The automatic pre-sorting and packing module comprises a weighing and code scanning mechanism and two guide-in sections. The application directly delivers goods to a temporary storage area at the side of the automatic pre-sorting and packing module, and the automatic pre-sorting and packing module automatically performs pre-classification of the goods after one-time manual packing, and delivers two types of goods to two independent sorting areas of the ring-shaped cross-belt sorting machine. In the whole process, only the unloading process and the one-time packing process need to involve manual operation, so that the automation degree of warehouse logistics sorting is greatly improved, and the labor cost is reduced. In addition, the application uses one ring-shaped cross-belt sorting machine as two sorting lines, so that the utilization efficiency of the ring-shaped cross-belt sorting machine is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of warehouse logistics sorting, and particularly relates to an automatic sorting system without manual preliminary sorting and a sorting method thereof. BACKGROUND

[0002] The process of the existing warehouse sorting scheme is as follows: a truck arrives at the entrance of a warehouse, a worker unloads the goods from the truck and places them in a temporary storage area at the entrance of the warehouse. Then the worker preliminarily classifies the goods according to the goods distribution area (generally into two categories). The goods classified into two categories are successively conveyed to a sorting line by a conveying line for manual package sorting, or conveyed to different sorting lines by two independent conveying lines for sorting. The purpose of preliminary classification is to reduce the number of classifications in one sorting, reduce the number of compartments for one classification on the sorting machine, shorten the average travel distance of the sorting trolley from the upper package to the lower package, thereby improving the working efficiency of the trolley and avoiding the situation that the goods pass through a very long distance on the sorting machine before being sorted.

[0003] In this process, unloading, preliminary sorting, batch conveying after preliminary sorting, and upper package operation at the sorting line all require manual participation, and the required labor cost is high. Moreover, the method of conveying the two categories of goods classified by preliminary sorting to the sorting line in succession will cause the other category of goods to accumulate at the entrance of the warehouse, affecting the subsequent unloading operation. Although the method of conveying the two categories of goods classified by preliminary sorting to two sorting lines at the same time can avoid the problem of accumulation of goods, it requires two independent conveying lines and sorting lines to be configured, which is high in equipment cost and low in utilization rate of warehouse space.

[0004] In addition, the upper package table of the existing ring-shaped cross-belt sorting machine is mostly arranged on the outer side of the ring line so as to facilitate workers to take the goods to be sorted. However, this method causes a large amount of space on the inner side of the ring line to be wasted, thereby reducing the utilization rate of the warehouse space. SUMMARY

[0005] The present application aims to provide an automatic sorting system without manual preliminary sorting and a sorting method thereof.

[0006] The automatic sorting system without manual preliminary sorting of the present application comprises a ring-shaped cross-belt sorting machine, a transfer conveyor, a feeding conveyor, and an automatic preliminary sorting and upper package module. The feeding conveyor is used to receive the goods to be sorted and convey the goods to the transfer conveyor. The transfer conveyor is used to convey the goods to the temporary storage area of the automatic preliminary sorting and upper package module. The ring-shaped cross-belt sorting machine is divided into two sorting areas. Each sorting area comprises an upper package section and a sorting section. The automatic preliminary sorting and upper package module is arranged on the inner side of the ring-shaped cross-belt sorting machine.

[0007] The automatic pre-sorting and packing module comprises a weighing and code scanning mechanism and two guide-in sections. The side of the weighing and code scanning mechanism is provided with a goods temporary storage area. The weighing and code scanning mechanism comprises a weighing conveying mechanism, a pre-classification identification camera and two buffer sections. The input ends of the two buffer sections are respectively connected to the two ends of the weighing conveying mechanism. The weighing conveying mechanism can detect the weight of the goods above itself and convey the goods to any one of the buffer sections. The pre-classification identification camera is arranged directly above the weighing conveying mechanism and is used for shooting the goods on the weighing conveying mechanism. Each automatic pre-sorting and packing module corresponds to two packing tables. The two packing tables are respectively connected to two packing sections of the ring-shaped cross-belt sorting machine through two guide-in sections.

[0008] During the working process, the goods are conveyed to the goods temporary storage area of the automatic pre-sorting and packing module through the feeding conveyor and the transfer conveyor; the goods in the goods temporary storage area are manually packed to the weighing and code scanning mechanism; the weighing and code scanning mechanism detects the weight of the goods, collects the image of the goods, judges the category of the goods, and then conveys the goods to the sorting area of the ring-shaped cross-belt sorting machine corresponding to the category of the goods through the corresponding guide-in section and packing table.

[0009] Preferably, a plurality of automatic pre-sorting and packing modules are arranged in sequence and at intervals along the direction of the linear section of the ring-shaped cross-belt sorting machine on the inner side of the sorting machine.

[0010] Preferably, each automatic pre-sorting and packing module comprises two weighing and code scanning mechanisms. The two weighing and code scanning mechanisms are arranged side by side between the two guide-in sections. The two sides of the automatic pre-sorting and packing module are provided with goods temporary storage areas; and one goods temporary storage area is shared by two adjacent automatic pre-sorting and packing modules.

[0011] Preferably, the pre-classification identification camera is installed on the rack of the weighing and code scanning mechanism through mounting brackets. The two mounting brackets are installed between the two weighing conveying mechanisms.

[0012] Preferably, during the sorting process, one worker is arranged corresponding to each weighing and code scanning mechanism to put the goods in the goods temporary storage area onto the weighing and code scanning mechanism. Two workers are arranged between two adjacent automatic pre-sorting and packing modules; and the two workers work back to back.

[0013] As preferred, the connection between the upper package section and the sorting section of the unified sorting area of the ring-shaped cross-belt sorting machine is provided with a five-surface scanning device. The upper package table comprises 3-7 sections of conveying belts in series and is divided into a package input section, a plurality of package accelerating sections and a package output section. The speed of the package accelerating sections increases section by section. The bottom surface scanning device is arranged at the upper package table. The bottom surface scanning device is arranged at the gap between the adjacent two sections of conveying belts and faces upward. The bottom surface scanning device cooperates with the five-surface scanning device on the ring-shaped cross-belt sorting machine, so that the bar code scanning can be successful even if the package rolls at the junction between the automatic pre-sorting upper package module and the upper package table. In addition, the five-surface scanning improves the accuracy, and if the goods are not put on the correct trolley, it can be found in time.

[0014] As preferred, the two upper package sections are respectively located at the middle positions of the two straight sections of the ring-shaped cross-belt sorting machine, so as to reduce the sum of the conveying distances of the two upper package sections to the automatic pre-sorting upper package module.

[0015] As preferred, the goods temporary storage area adopts a goods hopper; the goods hopper is provided with an inclined slide; the top of the inclined slide is connected with the output area of the transfer conveyor. The bottom of the inclined slide is connected with a goods storage area. The goods on the output area of the transfer conveyor are sent into the goods temporary storage area through a goods distribution mechanism; the goods distribution mechanism comprises a distribution plate and a distribution driving mechanism. The inner end of the distribution plate is rotationally connected with a rack and is located on the side of the output area of the transfer conveyor away from the inclined slide. The distribution plate is driven to flip by the distribution driving mechanism. The distribution plate has two working positions; when the distribution plate is in the first working position, the distribution plate does not affect the conveying of the goods on the output area of the transfer conveyor; when the distribution plate is flipped to the second working position, the distribution plate diverts the conveyed goods on the output area of the transfer conveyor into the corresponding inclined slide.

[0016] As preferred, photoelectric sensors are arranged at the two ends above the conveying surface of the weighing conveying mechanism; the photoelectric sensors are used to detect the length of the goods.

[0017] As preferred, the conveying direction of the weighing conveying mechanism is perpendicular to the conveying direction of the corresponding upper package section on the ring-shaped cross-belt sorting machine; the output end of the lead-in section is connected with the side of the input end of the corresponding upper package table; the output end of the upper package table is connected with the side of the upper package section of the ring-shaped cross-belt sorting machine; the conveying direction of the lead-in section and the conveying direction of the corresponding upper package table form an angle θ1; the conveying direction of the upper package table and the corresponding upper package section of the ring-shaped cross-belt sorting machine form an angle θ2; θ1+θ2=90°.

[0018] Preferably, the conveying direction of the guide-in section forms an angle of 50-75 degrees with the conveying direction of the corresponding upper packing table; a blocking guide plate is arranged on the outer side of the connection between the guide-in section and the upper packing table; the blocking guide plate is V-shaped and divided into a first guide section and a second guide section; the first guide section is flush with the edge of the guide-in section; and the second guide section is aligned with the edge of the upper packing table away from the guide-in section.

[0019] Preferably, the buffer section, the guide-in section and the upper packing table are formed by one or a plurality of belt conveyors connected in series.

[0020] Preferably, the transfer conveyors are installed in the warehouse and are provided with an input area close to the unloading position of the warehouse and an output area close to each automatic pre-sorting and packing module.

[0021] Preferably, the feeding conveyors are installed at the unloading position of the warehouse and the input ends are aligned with the unloading position of the truck; and the output ends of each plurality of feeding conveyors are connected to the side of the input area of the transfer conveyor.

[0022] The working method of the automatic sorting system without manual preliminary sorting comprises the following steps:

[0023] Step one: the truck drives to the unloading area at the entrance of the warehouse, and the worker sends the goods to the corresponding feeding conveyor.

[0024] Step two: the goods pass through the feeding conveyor and the transfer conveyor and enter one of the temporary storage areas.

[0025] Step three: the worker closest to the temporary storage area sends the temporary storage area to the weighing and code scanning mechanism.

[0026] Step four: the weighing conveyor mechanism on the weighing and code scanning mechanism detects the weight of the goods, the pre-classification recognition camera takes a picture and recognizes the goods; the goods are preliminarily classified according to the barcode information; and then the weighing conveyor mechanism sends the goods to the corresponding upper packing table.

[0027] Step five: the upper packing table sends the goods to the corresponding packing section of the ring-shaped cross-belt sorter; when the goods reach the corresponding packing compartment of the ring-shaped cross-belt sorter, the goods are sent into the packing compartment, and the automatic sorting of the goods is completed.

[0028] The present application has the following beneficial effects:

[0029] 1、The present application directly transports goods to the temporary storage area of the automatic pre-sorting and wrapping module on the side of the module, and after one manual wrapping, the automatic pre-sorting and wrapping module automatically performs pre-sorting of the goods, and transports the two types of goods to two independent sorting areas of the ring-shaped cross-belt sorting machine, so as to shorten the average travel of the trolley in one sorting. In the whole process, only the unloading process and the one-time wrapping process need to involve manual operation, which greatly improves the automation degree of the warehouse logistics sorting and reduces the labor cost.

[0030] 2、The present application uses one ring-shaped cross-belt sorting machine as two sorting lines, which greatly improves the utilization efficiency of the ring-shaped cross-belt sorting machine. Moreover, the automatic pre-sorting and wrapping module is arranged on the inner side of the ring-shaped cross-belt sorting machine, so that the sum of the distances from the automatic pre-sorting and wrapping module to the two sorting areas of the ring-shaped cross-belt sorting machine is minimized, thereby reducing the equipment cost of the automatic pre-sorting and wrapping module. In addition, this kind of mode fully utilizes the space on the inner side of the ring-shaped cross-belt sorting machine, thereby improving the space utilization of the warehouse.

[0031] 3、The present application arranges multiple automatic pre-sorting and wrapping modules in sequence and at intervals on the inner side of the ring-shaped cross-belt sorting machine, and arranges workers on both sides of each automatic pre-sorting and wrapping module; the workers between the adjacent two automatic pre-sorting and wrapping modules work back-to-back and do not affect each other in the working process, thereby greatly improving the wrapping efficiency. In addition, the present application directly transports the goods to the temporary storage area on the side of the automatic pre-sorting and wrapping module by using the feeding conveyor and the transfer conveyor, so that the workers only need to focus on the wrapping operation, thereby reducing the working complexity of the workers and improving the working efficiency.

[0032] 4、The blocking guide plate is arranged on the outer side of the connection between the introduction section and the wrapping table in the present application, so as to ensure the stability of the posture of the package during the transmission to the wrapping table, and avoid large deviation of the angle and position of the package. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0034] Figure 2 It is a schematic diagram of the installation of a single automatic pre-sorting and wrapping module in the present application inside the ring-shaped cross-belt sorting machine;

[0035] Figure 3 It is a schematic diagram of the structure of the automatic pre-sorting and wrapping module in the present application.

[0036] Figure 4 It is Figure 2 It is a local enlarged view of part A in the present application. DETAILED DESCRIPTION

[0037] The present application will be further described below in combination with the drawings.

[0038] As shown in Figure 1 and 2 , an automatic sorting system without manual preliminary sorting includes a ring cross-belt sorter 1, a transfer conveyor 2, a plurality of feeding conveyors 3 and a plurality of automatic pre-sorting and packing modules 4. The transfer conveyor 2 is installed in the warehouse and is provided with an input area near the unloading position of the warehouse and an output area near each automatic pre-sorting and packing module 4. The plurality of feeding conveyors 3 are installed at the unloading position of the warehouse, and the input ends are respectively aligned with the unloading positions of the plurality of trucks; the output ends of each plurality of feeding conveyors 3 are connected to the side of the input area of the transfer conveyor 2. The goods input position of each automatic pre-sorting and packing module 4 is located at the side of the output area of the transfer conveyor 2. The transfer conveyor 2 is used to automatically transfer the goods sent by the plurality of feeding conveyors 3 to the input area to the output area, and to send the goods from the output area to the temporary storage position of each automatic pre-sorting and packing module 4.

[0039] The ring cross-belt sorter 1 is divided into two sorting areas. Each sorting area includes a packing section and a sorting section. The two packing sections are respectively located at the middle positions of the two straight sections of the ring cross-belt sorter 1. The output ends of the two packing sections are provided with five-surface scanning equipment 6. Each automatic pre-sorting and packing module 4 is arranged in turn at the middle position inside the ring cross-belt sorter 1. The automatic pre-sorting and packing module 4 can automatically preliminarily sort the goods, divide the goods into two categories according to requirements, and convey them in opposite directions. The two categories of preliminarily sorted goods can be goods for different distribution areas (such as the area on the north side of the warehouse and the area on the south side of the warehouse). The two goods output positions for outputting the two categories of goods on the automatic pre-sorting and packing module 4 are respectively docked with the side of the packing section on the ring cross-belt sorter 1.

[0040] As shown in Figure 3 and 4 , the automatic pre-sorting and packing module 4 includes a temporary storage area 4-1, a weighing and code scanning mechanism 4-2, and two guide-in sections 4-3. Each automatic pre-sorting and packing module 4 corresponds to two packing tables 5; the two packing tables 5 are respectively arranged at opposite ends of the corresponding automatic pre-sorting and packing module 4 and are respectively docked with the two packing sections of the ring cross-belt sorter 1. The temporary storage area 4-1 adopts a goods hopper; the goods hopper is provided with an inclined chute; the top of the inclined chute is docked with the output area of the transfer conveyor 2. The bottom of the inclined chute is connected with a goods storage area for temporarily storing the input goods to facilitate the workers to perform the packing operation.

[0041] The output area of the transfer conveyor 2 is provided with a number of goods distribution mechanisms corresponding to the number of inclined slides. The goods distribution mechanism is mounted on the frame and includes a distribution plate and a distribution drive mechanism. The inner end of the distribution plate is rotatably connected to the frame and located on the side of the output area of the transfer conveyor 2 away from the inclined slides. The outer end of the distribution plate is located on the side of the inner end of the distribution plate close to the conveying direction of the output area of the transfer conveyor 2.

[0042] The distribution plate is driven to flip by the distribution drive mechanism. The distribution drive mechanism uses a pneumatic cylinder. The cylinder body of the distribution drive mechanism is rotatably connected to the frame. The end of the piston rod is rotatably connected to the side of the distribution plate; the flipping of the distribution plate is driven by the extension and contraction of the pneumatic cylinder. The distribution plate has two working positions; when the distribution plate is in the first working position, the distribution plate is separated from the output area of the transfer conveyor 2; when the distribution plate is flipped to the second working position, the distribution plate distributes the goods conveyed on the output area of the transfer conveyor 2 into the corresponding inclined slides.

[0043] The weighing and code scanning mechanism 4-2 includes a weighing conveyor mechanism 4-2-1, a mounting bracket 4-2-2, a pre-classification identification camera 4-2-3, and two buffer sections 4-2-4. The weighing conveyor mechanism 4-2-1 is mounted on the frame and uses a belt conveyor, and is weighed by a pressure sensor. The pre-classification identification camera 4-2-3 is mounted on the frame by the mounting bracket 4-2-2 and located directly above the weighing conveyor mechanism 4-2-1, used for image acquisition and scanning operation of the goods placed on the weighing conveyor mechanism 4-2-1, reading the information of the goods; according to the information of the goods, the goods are classified, and different categories of goods are conveyed to the opposite direction of the upper package table 5. The two ends of the weighing conveyor mechanism 4-2-1 are respectively connected to the input ends of the two buffer sections 4-2-4. The two ends above the conveying surface of the weighing conveyor mechanism 4-2-1 are respectively provided with photoelectric sensors; according to the length of time that the photoelectric sensors detect the target object and the conveying speed of the weighing conveyor mechanism 4-2-1, the length of the goods is judged.

[0044] The output ends of the two buffer sections 4-2-4 in the same weighing and code scanning mechanism 4-2 are respectively connected to the input ends of the two lead-in sections 4-3. The output ends of the two lead-in sections 4-3 are respectively connected to the input end sides of the two upper package tables 5; the output ends of the upper package tables 5 are respectively connected to the sides of the corresponding upper package sections of the ring-shaped cross-belt sorting machine 1. The buffer section 4-2-4, the lead-in section 4-3, and the upper package table 5 all use a belt conveyor or a plurality of belt conveyors connected in series. The conveying direction of the lead-in section 4-3 and the conveying direction of the corresponding upper package table 5 form a 60° angle; the conveying direction of the upper package table 5 and the conveying direction of the corresponding upper package section of the ring-shaped sorting machine form a 30° angle, so as to accurately send the goods whose conveying direction on the weighing and code scanning mechanism 4-2 is perpendicular to the running direction of the upper package section of the ring-shaped cross-belt sorting machine 1 to the ring-shaped cross-belt sorting machine 1.

[0045] The outer side of the connection between the guide-in section 4-3 and the corresponding upper wrapping table 5 is provided with a blocking guide plate 7. The blocking guide plate 7 is V-shaped and divided into a first guide section and a second guide section. The first guide section is flush with the edge of the guide-in section 4-3. The second guide section is aligned with the edge of the upper wrapping table 5 away from the guide-in section 4-3. The blocking guide plate 7 is used to ensure the stability of the posture of the package during the transfer to the upper wrapping table 5, avoiding large deviations in angle and position.

[0046] Each automatic pre-sorting wrapping module 4 includes two weighing and code scanning mechanisms 4-2. The two weighing and code scanning mechanisms 4-2 are arranged side by side between the two upper wrapping tables 5. The two mounting brackets 4-2-2 are mounted between the two weighing and conveying mechanisms 4-2-1, on the one hand to separate the two weighing and conveying mechanisms 4-2-1, making it easier for workers to determine the available placement area, and on the other hand to avoid blocking the workers. The goods output by the two weighing and code scanning mechanisms 4-2 are sent to the upper wrapping table 5 through the guide-in section 4-3.

[0047] The two sides of the automatic pre-sorting wrapping module 4 are provided with a goods temporary storage area 4-1; adjacent two automatic pre-sorting wrapping modules 4 share one goods temporary storage area 4-1; each weighing and code scanning mechanism 4-2 is correspondingly provided with one worker to place the goods in the goods temporary storage area 4-1 onto the weighing and code scanning mechanism 4-2.

[0048] The design of the conveying direction of the weighing and code scanning mechanism 4-2 being perpendicular to the running direction of the wrapping section of the ring-shaped cross-belt sorter 1 makes the automatic pre-sorting wrapping modules 4 more compact and increases the number of wrapping workers that can be arranged inside the ring-shaped cross-belt sorter 1. In addition, the workbench between every two adjacent automatic pre-sorting wrapping modules 4 is provided with two workers; the two workers work back-to-back and do not interfere with each other. After the packages are unloaded from the truck, they are automatically conveyed to the goods temporary storage area 4-1 on the side of the workbench, eliminating the need for pre-screening operations and manual transportation of goods inside the warehouse, saving warehouse space and improving sorting efficiency.

[0049] As a preferred technical solution, the weighing and code scanning mechanism 4-2 includes a package control computer, a pre-classification identification camera 4-2-3, a first conveying belt, a weighing unit, and a photoelectric position detection switch. It distinguishes whether the package should be conveyed to the A area or the B area by identifying the face sheet, transmits this information to the upper computer, controls the forward and reverse rotation of the belt, and binds the package weight information and the barcode.

[0050] As a preferred technical solution, the buffer section 4-2-4 includes a second conveying belt and a photoelectric position detection switch, mainly used for package queuing and temporary storage.

[0051] As a preferred technical solution, the upper packaging table 5 includes three to seven sections of conveying belts in series, which are divided into a package input section 4-3, a package acceleration section and a package output section. The speed of the package acceleration section increases section by section, and the package efficiency increases step by step within 2000-4000 packages / hour. The more the number of sections of the package acceleration section, the higher the package efficiency.

[0052] As a preferred technical solution, the automatic package supply has high requirements for the front-end incoming package, the label surface of the incoming package needs to face a specified direction (the label needs to face upwards when the scanner is top scanning, and the label cannot face downwards when five-surface scanning), and the incoming package must be single. However, even if the two-dimensional code of the goods faces upwards at the initial packaging, the goods may be turned over during transportation, resulting in a change in the direction of the two-dimensional code. Therefore, the bottom code scanning device is arranged at the upper packaging table 5, which cooperates with the five-surface scanning equipment on the ring-shaped cross-belt sorting machine 1, can effectively identify the situation that the barcode does not face upwards due to the rolling of the package during operation, and improves the accuracy of sorting. The bottom code scanning device is arranged at the gap between the two conveying belts and faces upwards.

[0053] The working method of the automatic sorting system without manual preliminary sorting includes the following steps:

[0054] Step one, the truck drives to the unloading area at the entrance of the warehouse, and the worker sends the goods to the corresponding feeding conveyor 3.

[0055] Step two, the goods pass through the feeding conveyor 3 and the transfer conveyor 2, and enter one of the temporary storage areas 4-1.

[0056] Step three, the worker closest to the temporary storage area 4-1 sends the goods in the temporary storage area 4-1 to the weighing and code scanning mechanism 4-2 in a posture with the face-up surface.

[0057] Step four, the weighing conveying mechanism 4-2-1 on the weighing and code scanning mechanism 4-2 detects the weight of the goods, and the pre-classification recognition camera 4-2-3 photographs and recognizes the goods; according to the address corresponding to the two-dimensional code on the goods in the image, the goods are preliminarily classified; then, the weighing conveying mechanism 4-2-1 sends the goods to the upper packaging table 5 corresponding to the preliminary classification.

[0058] Step five, the upper packaging table 5 sends the goods to the sorting trolley at the corresponding upper packaging section of the ring-shaped cross-belt sorting machine 1. When the goods reach the corresponding lower packaging compartment of the ring-shaped cross-belt sorting machine 1, they are sent into the lower packaging compartment, completing the automatic sorting of the goods.

[0059] In this process, only the process of unloading the truck and the process of sending the goods to the weighing and code scanning mechanism 4-2 require manual labor, which saves the labor cost of preliminary screening of packages at the entrance of the warehouse in the prior art, and saves the space and equipment cost required for separate in-warehouse transportation after preliminary classification.

Claims

1. An automatic sorting system without manual preliminary sorting, comprising a ring-shaped cross-belt sorter (1), a transfer conveyor (2), and a feeding conveyor (3); characterized in that: The automatic pre-sorting and packing module (4) is further included; the feeding conveyor (3) is used for receiving the sorted goods and conveying the goods to the transfer conveyor (2); the feeding conveyor (3) is installed at the unloading position of the warehouse, and the input end is aligned with the unloading position of the truck; the output end of each feeding conveyor (3) is connected to the side of the input area of the transfer conveyor; the transfer conveyor (2) is used for conveying the goods to the temporary storage area (4-1) of the automatic pre-sorting and packing module (4); the ring cross-belt sorter (1) is divided into two sorting areas; each sorting area includes a packing section and a sorting section; the automatic pre-sorting and packing module (4) is arranged on the inner side of the ring cross-belt sorter (1); the automatic pre-sorting and packing module (4) performs pre-classification of the goods and conveys the two types of goods to the two independent sorting areas of the ring cross-belt sorter respectively; The automatic pre-sorting and packing module (4) includes a weighing and code scanning mechanism (4-2) and two guide-in sections (4-3); the temporary storage area (4-1) is arranged on the side of the weighing and code scanning mechanism (4-2); the weighing and code scanning mechanism (4-2) includes a weighing conveying mechanism (4-2-1), a pre-classification identification camera (4-2-3) and two buffer sections (4-2-4); the input ends of the two buffer sections (4-2-4) are respectively connected to the two ends of the weighing conveying mechanism (4-2-1); the weighing conveying mechanism (4-2-1) can detect the weight of the goods above itself and convey the goods to any one of the buffer sections (4-2-4); the pre-classification identification camera (4-2-3) is arranged directly above the weighing conveying mechanism (4-2-1) and is used for shooting the goods on the weighing conveying mechanism (4-2-1); each automatic pre-sorting and packing module (4) corresponds to two packing tables (5); the two packing tables (5) are respectively connected to the two packing sections of the ring cross-belt sorter (1); the two packing tables (5) are respectively connected to the two buffer sections (4-2-4) through the two guide-in sections (4-3); the conveying direction of the weighing and code scanning mechanism (4-2) is perpendicular to the running direction of the packing section of the ring cross-belt sorter (1); the output end of the guide-in section (4-3) is connected to the input end side of the corresponding packing table (5), and a V-shaped blocking guide plate (7) is arranged outside the connection position; the conveying direction of the guide-in section (4-3) and the conveying direction of the corresponding packing table (5) form an included angle of 50°-75°. The two upper package sections of the ring-shaped cross-belt sorting machine are located at two straight sections of the ring-shaped cross-belt sorting machine; a plurality of automatic pre-sorting upper package modules (4) are arranged between the two straight sections of the ring-shaped cross-belt sorting machine (1) and are sequentially and spaced apart along the direction of the straight sections of the sorting machine; each automatic pre-sorting upper package module (4) comprises two weighing and code scanning mechanisms (4-2); the two weighing and code scanning mechanisms (4-2) are arranged side by side between two lead-in sections (4-3); the automatic pre-sorting upper package module (4) is provided with a goods temporary storage area (4-1) on each side; two adjacent automatic pre-sorting upper package modules (4) share one goods temporary storage area (4-1); each weighing and code scanning mechanism (4-2) is provided with a worker corresponding thereto, and the worker places the goods in the goods temporary storage area (4-1) on the weighing and code scanning mechanism (4-2); the two workers between the two adjacent automatic pre-sorting upper package modules (4) work back to back; In the working process, the goods are conveyed to the goods temporary storage area (4-1) of the automatic pre-sorting upper package module (4) through the feeding conveyor (3) and the transfer conveyor (2); the goods in the goods temporary storage area (4-1) are manually packaged to the weighing and code scanning mechanism (4-2); the weighing and code scanning mechanism (4-2) detects the weight of the goods and collects the image of the goods, judges the category of the goods, and then conveys the goods to the sorting area of the ring-shaped cross-belt sorting machine (1) corresponding to the category of the goods through the corresponding lead-in section (4-3) and the upper packaging table (5).

2. An automatic sorting system without manual preliminary sorting according to claim 1, characterized in that: The pre-classification recognition camera (4-2-3) is installed on the rack of the weighing and code scanning mechanism (4-2) through the mounting bracket (4-2-2); the two mounting brackets (4-2-2) are installed between the two weighing and conveying mechanisms (4-2-1).

3. The automatic sorting system without manual preliminary sorting according to claim 1, characterized in that: The upper package section and the sorting section of the unified sorting area of the ring-shaped cross-belt sorting machine (1) are provided with a five-surface scanning device (6); the upper packaging table (5) comprises 3-7 serially connected conveying belts and is divided into a package input section, a plurality of package accelerating sections and a package output section; the speed of the package accelerating section increases gradually; the bottom surface code scanning device is arranged at the upper packaging table (5); the bottom surface code scanning device is arranged at the gap between the adjacent two conveying belts and faces upward; the bottom surface code scanning device cooperates with the five-surface scanning device on the ring-shaped cross-belt sorting machine (1) to realize the scanning of the bar code in any orientation of the package.

4. The automated sorting system of claim 1, wherein: The goods temporary storage area (4-1) adopts a goods hopper; an inclined chute is arranged on the goods hopper; the top of the inclined chute is connected with the output area of the transfer conveyor (2); the bottom of the inclined chute is connected with a goods storage area; the goods on the output area of the transfer conveyor (2) are sent into the goods temporary storage area (4-1) through a goods distribution mechanism; the goods distribution mechanism comprises a distribution plate and a distribution driving mechanism; the inner end of the distribution plate is rotationally connected with a rack and is located on the side of the output area of the transfer conveyor (2) away from the inclined chute; the distribution plate is driven to overturn by the distribution driving mechanism; the distribution plate has two working positions; when the distribution plate is in the first working position, the distribution plate does not affect the conveying of the goods on the output area of the transfer conveyor (2); when the distribution plate is overturned to the second working position, the distribution plate distributes the goods conveyed on the output area of the transfer conveyor (2) into the corresponding inclined chute.

5. The automated sorting system of claim 1, wherein: The weighing conveying mechanism (4-2-1) is provided with photoelectric sensors at both ends above the conveying surface; the photoelectric sensors are used for detecting the length of the goods.

6. The automated sorting system of claim 1, wherein: The conveying direction of the weighing conveying mechanism (4-2-1) is perpendicular to the conveying direction of the corresponding upper bag section on the ring-shaped cross-belt sorter (1); the output end of the lead-in section (4-3) is connected with the side of the input end of the corresponding upper bag table (5); the output end of the upper bag table (5) is connected with the side of the upper bag section of the ring-shaped cross-belt sorter (1); the conveying direction of the lead-in section (4-3) forms an angle θ1 with the conveying direction of the corresponding upper bag table (5); the conveying direction of the upper bag table (5) forms an angle θ2 with the corresponding upper bag section on the ring-shaped cross-belt sorter (1); θ1+θ2=90°.

7. An automatic sorting system without manual preliminary sorting according to claim 6, characterized in that: The outer side of the connection between the lead-in section (4-3) and the upper bag table (5) is provided with a blocking guide plate (7); the blocking guide plate (7) is V-shaped and is divided into a first guide section and a second guide section; the first guide section is flush with the edge of the lead-in section (4-3); the second guide section is aligned with the edge of the upper bag table (5) away from the lead-in section (4-3).

8. The method of claim 1, wherein: The method comprises the following steps: Step one, the truck drives to the unloading area at the entrance of the warehouse, and the staff sends the goods onto the corresponding feeding conveyor (3); Step two, the goods pass through the feeding conveyor (3) and the transfer conveyor (2) and enter one of the goods temporary storage areas (4-1); Step three, the staff closest to the goods temporary storage area (4-1) sends the goods temporary storage area (4-1) onto the weighing and code scanning mechanism (4-2); Step four, the weighing conveying mechanism (4-2-1) on the weighing and code scanning mechanism (4-2) detects the weight of the goods, and the pre-classification recognition camera (4-2-3) photographs and recognizes the goods; the goods are preliminarily classified; then, the weighing conveying mechanism (4-2-1) sends the goods to the upper bag table corresponding to the category of the goods; Step five, the upper bag table sends the goods onto the corresponding upper bag section on the ring-shaped cross-belt sorter (1); when the goods reach the corresponding lower bag compartment on the ring-shaped cross-belt sorter (1), the goods are sent into the lower bag compartment, and the automatic sorting of the goods is completed.

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