CN112958461A

CN112958461A - Automatic goods conveying and bag building method

Info

Publication number: CN112958461A
Application number: CN202110174621.1A
Authority: CN
Inventors: 刘真国; 田凯; 唐兵; 姚小芬
Original assignee: Kengic Intelligent Technology Co Ltd
Current assignee: Kengic Intelligent Technology Co Ltd
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2021-06-15
Anticipated expiration: 2041-02-07
Also published as: CN112958461B

Abstract

The invention discloses an automatic goods conveying and packing device and a method thereof, and provides an automatic turnover system for conveying and sorting a material box, which is established between a loading area and a unloading area. The method comprises the following steps: 1) the material box is in turnover; 2) loading goods; 3) unloading; 4) building a bag, wherein a bag collecting bag below the discharging chute collects the goods in one material box each time; after the goods are collected, the bag collecting bags are bound and built manually; generating an information bar code of the bag collecting bag according to the address code of the discharging chute through an RFID writing device, or generating an RFID number of the bag collecting bag according to the address code of the discharging chute through a printer; the information bar codes or the RFID numbers and the goods in the collecting and packaging bags establish one-to-one corresponding binding information; and pushing the bag collecting bag after the bag building is finished to the bag returning line, and entering the next warehousing procedure.

Description

Automatic goods conveying and bag building method

Technical Field

The invention relates to an automatic conveying and bag building method applied to sorting and storage of small goods, and belongs to the technical field of logistics sorting.

Background

In the logistics sorting operation field of the existing e-commerce and express delivery industries, when sorted goods reach an appointed grid area, the packing bags need to be hung on a series of bag hanging frames in the grid area manually, and then the sorted goods are waited to enter the packing bags. If the bag is full, the grid area indicator light will give a signal, at which point personnel will be required to quickly and manually build the bag and hang the bag empty. When a plurality of packaging bags need to be manually built, the process of running back and forth and building and hanging the bags by personnel is tedious, time-consuming and labor-intensive. This requires the site to be equipped with sufficient personnel to do so. In order to shorten the links of manual intervention and operation, the automation operation level and the sorting efficiency are integrally improved.

In view of this, the present patent application is specifically proposed.

Disclosure of Invention

The invention provides an automatic transfer system for conveying and sorting goods, which is established between a loading area and an unloading area, aims to solve the problems in the prior art, realizes an automatic package building process flow, replaces the conventional bag hanging and manual packaging mode of stations, reduces the labor intensity of people in back-and-forth running through the cyclic transfer operation of the goods, and improves the accuracy and the operating efficiency of goods sorting and conveying.

In order to achieve the design purpose, the automatic cargo conveying and bag building method comprises the following steps:

1) material box turnover

The material box circularly rotates and runs on a roller conveying line consisting of a plurality of groups of electric rollers and unpowered rollers;

2) and loading the goods

When each empty bin reaches the grid opening sliding groove of the loading area, the RFID loading position reading device reads the number information in the RFID chip on the bin to generate a bin number designation code;

the information is uploaded to a PLC of the control system, and whether the specified code of the bin number is consistent with the address code of the grid chute in the control system is judged; if the two are not consistent, the material box continues to operate; if the goods are consistent with the specified code, stopping the operation of the material box, and simultaneously enabling the goods to enter the material box with the specified code;

the full-box detection photoelectric assembly monitors the whole loading process; once the goods are fully received, the full box detection photoelectric assembly sends a signal to the PLC of the control system, and then the control system sends an instruction to close the lattice opening sliding groove, and meanwhile, the electric roller on the roller conveying line operates again to convey the bin forwards continuously;

3) unloading the cargo

When each full-load bin reaches the discharging chute of the discharging area, the RFID discharging position reading device reads the number information stored in the RFID chip to generate a bin number designation code;

the information is uploaded to a PLC of the control system, and whether the specified code of the bin number is consistent with the address code of the discharging chute in the control system is judged; if the two are not consistent, the material box continues to operate; if the two materials are consistent, the material box stops running, the air cylinder mechanism drives the drawing plate to open the bottom opening of the material box, and the packages fall into a bag collecting bag through the discharging chute;

the cylinder mechanism drives the drawing plate to close the bottom opening of the material box again, and the unloaded material box is circulated again along the roller conveying line and returns to the loading area.

4) Build a bag

The bag collecting bag below the discharging chute collects the goods in one material box each time;

after the goods are collected, the bag collecting bags are bound and built manually;

generating an information bar code of the bag collecting bag according to the address code of the discharging chute through an RFID writing device, or generating an RFID number of the bag collecting bag according to the address code of the discharging chute through a printer;

the information bar codes or the RFID numbers and the goods in the collecting and packaging bags establish one-to-one corresponding binding information;

and pushing the bag collecting bag after the bag building is finished to the bag returning line, and entering the next warehousing procedure.

Further, step 2), a plurality of pairs of photoelectric detection assemblies and photoelectric receiving assemblies are arranged on the roller conveying line corresponding to a plurality of double-layer grid chutes of the loading area and a plurality of discharging chutes of the discharging area; when the bin runs to a designated position according to a sorting task, the photoelectric detection assembly and the photoelectric receiving assembly generate detection signals and upload the detection signals to the control system.

Furthermore, an RFID loading position reading device and a full box detection photoelectric assembly are arranged at the bottom of each double-layer lattice opening sliding groove of the matching and butting double-layer sorting loop line; when the unloaded material box reaches the corresponding grid opening sliding groove of the loading area, the radio frequency signal sent by the RFID loading position reading device is received by the RFID chip on the material box, so that the self number information of the material box stored in the RFID chip is sent out by the energy obtained by the induced current, and the corresponding material box number information is transmitted to the PLC of the control system by the RFID loading position reading device, thereby completing the positioning control of the material box at the grid opening sliding groove; through the information acquisition and confirmation process, the corresponding relation between the goods conveyed on the sorting loop and the specific material box is established.

Further, when the material box collects goods, the full box detection photoelectric assembly monitors the whole process; once the goods are fully received, the full box detection photoelectric assembly sends a signal to the PLC of the control system, and then the control system sends an instruction to close the lattice opening sliding groove, and meanwhile, the electric roller on the roller conveying line operates again and conveys the bin to the next procedure.

Further, in the step 3), an air cylinder mechanism for opening or closing the bottom opening of the material box is arranged in the unloading area corresponding to the unloading chute of each unloading station; when the material box reaches the position of a designated unloading area, the sliding block of the air cylinder mechanism moves linearly along the guide rod under the driving of air force, and the first sucking disc and the second sucking disc which are fixed on the sucking disc fixing support are pushed out to suck the drawing plate; the drawing plate is opened while the sliding block continues to move, and the packages in the material box fall into the discharging chute; when the goods are completely unloaded, the sliding block moves in the opposite direction to drive the drawing plate to close the opening at the bottom of the material box again, and then the material box can move to a goods loading area along the roller conveying line and continuously collect the goods sorted from the grid sliding groove.

Furthermore, an RFID unloading position reading device is arranged at the top of each unloading chute and the side of the roller conveying line in a matched and butted mode in the unloading area; when a bin full of goods reaches a specified unloading chute on the roller conveying line, the RFID unloading position reading device reads information stored in an RFID chip; the in-place signal is transmitted to a PLC of a control system, and is corrected with the in-place signal through a sorting task between the goods and a material box established in a loading area; only under the premise of correct calibration, the control system sends an instruction to control the electric roller in the region to stop running, the air cylinder mechanism drives the drawing plate to open the bottom opening of the material box, and the package falls into a bag collecting bag through the discharging chute.

Furthermore, an RFID writing device or a printer is arranged in the unloading area, and an RFID number or a bar code is generated according to the address code of the unloading chute in the control system, so that the RFID number or the bar code is correspondingly bound with the packages in the bag collecting bag.

In summary, the automatic cargo conveying and bag building method has the following advantages:

1. the automatic bag building and turnover of the multifunctional material box reduce the labor intensity of personnel and reduce the difficulty of field operation.

2. The manual intervention and operation links are shortened, and meanwhile, the automatic operation level and the sorting efficiency are integrally improved;

3. the fixed building bag is collected, so that the running waves of personnel are reduced, and the configuration requirements of the personnel are lowered;

drawings

The present application will now be further described with reference to the following drawings.

FIG. 1 is a schematic view of a loading area of an automatic cargo conveying and packing device according to the present application;

FIG. 2 is a schematic view of an unloading area of the automatic cargo conveying and packing device according to the present application;

FIG. 3-1 is a schematic view of a bin configuration operating on a conveyor line;

FIG. 3-2 is a side schematic view of FIG. 3-1;

FIG. 4-1 is a schematic view of a bin provided with an RFID chip;

FIG. 4-2 is a schematic view of the bin in a discharge state;

FIG. 4-3 is a bottom view of the FIG. 4-2;

4-4 are schematic structural views of a single set of slide rail assemblies;

4-5 are schematic structural views of two sets of slide rail assemblies after installation;

FIG. 5 is a schematic view of the discharge area cylinder mechanism arrangement;

FIG. 6-1 is a schematic view of the structure of the cylinder mechanism;

FIG. 6-2 is a bottom view of the FIG. 6-1;

FIG. 7 is a schematic view of a partial structure of a cargo area;

FIG. 8 is a partial structural view of the unloading zone;

FIG. 9 is a schematic flow chart of an automatic cargo transportation and package building method according to the present application;

Detailed Description

Embodiment 1, as shown in fig. 1 and 2, an automatic cargo conveying and packing device to which the present application is applied includes a loading area and an unloading area, a conveying line connecting the loading area and the unloading area, and a plurality of bins 100 running on the conveying line.

The loading area is provided with a double-layer sorting loop line 201, a sorting trolley 204 which runs on the sorting loop line 201 and conveys goods, and a double-layer grid sliding chute 205; the sorting carriages 204 travel to the designated grid chute 205 in accordance with the sorting job generated by the control system and then sort the goods through the grid chute 205 into the bins 100 below.

The conveyor line is a roller conveyor line, and the bin 100 filled with goods is conveyed to the unloading area through the roller conveyor line.

The unloading area is provided with unloading chutes 211 corresponding to the unloading positions, bag hanging frames 212 and bag collecting bags 213 which are positioned at the bottom of each unloading chute 211, a roller table 215 and a bag returning line 216; the goods conveyed to the unloading area by the bin 100 are collected in the bag collecting bag 213 through the unloading chute 211, the packed bag collecting bag 213 is conveyed to the bag returning line 216 through the roller table 215, and finally, the packed goods are collected uniformly to complete the whole process of automatic conveying and bag building.

As shown in fig. 3-1 and 3-2, the roller conveyor line has several sets of roller assemblies, namely motorized rollers 110 and unpowered rollers 111, each set of roller assembly consists of one motorized roller 110 and several unpowered rollers 111 which are in driving connection with the motorized roller 110 (the driving connection structure and mode can be selected from multi-wedge belts/wheels, gears/racks and synchronous belts/wheels);

a plurality of pairs of photoelectric detection components 113 and photoelectric receiving components 114 are arranged on the roller conveying line, corresponding to a plurality of double-layer grid chutes 205 of the loading area and a plurality of discharging chutes 211 of the discharging area; when the bin 100 reaches a designated position according to the operation of the sorting task, the photoelectric detection assembly 113 and the photoelectric receiving assembly 114 generate detection signals and upload the detection signals to the control system; based on the in-place state of the bin 100, the control system controls the motorized roller 110 of the roller assembly to stop running, and the bin 100 lacks power to stop and position, so as to receive the goods sliding down from the sorting loop 201 through the grid chute 205, or the goods sliding down into the bag collecting pocket 213 through the bin 100 and the discharging chute 211.

As shown in fig. 4-1 to 4-5, the bin 100 runs on a roller conveyor line, turns between each cell of the loading area and the unloading area to realize each process of loading and unloading goods in an orderly and cyclic manner, and comprises a fixed frame 101 and a closing plate 102 positioned on the side, wherein the fixed frame 101 is fixedly arranged on a bottom frame 106, and the bottom frame 106 runs on the roller conveyor line;

a drawing plate 103 is movably connected between the fixed frame 101 and the bottom frame 106 through a first guide rail assembly 104 and a second guide rail assembly 105 which are arranged at two sides;

an RFID chip 107 for receiving and storing sorting information is arranged on the sealing plate 102;

the first guide rail assembly 104 and the second guide rail assembly 105 have the same structure and are symmetrically connected between the fixed frame 101 and the bottom frame 106;

taking the first rail assembly 104 as an example, it has a set of first rail bodies 1201, two sets of slide rails 1202, and two sets of second rail bodies 1203.

The first guide rail body 1201 is fixed with the bottom frame 106 of the material box 100 through a bolt through a first body mounting hole 1206 on the first guide rail body;

a limit stop 1204 is arranged at the end part of the first guide rail body 1201, and correspondingly, limit stop sheets 1205 are arranged at the end parts of each group of second guide rail bodies 1203 in the same direction;

the two sets of slide rails 1202 and the two sets of second rail bodies 1203 are connected in a single corresponding manner through second body mounting holes 1208, the two sets of second rail bodies 1203 are fastened and mounted, and the one set of second rail bodies 1203 located on the inner side is fixedly connected with the side portion of the drawing plate 103 through second body locking holes 1209 on the second rail bodies.

The first rail assembly 104 and the second rail assembly 105 are respectively located at both sides of the drawing plate 103, thereby supporting the drawing plate 103 and providing a sliding guide for the drawing plate 103 to open or close the bottom opening of the bin 100.

As shown in fig. 5 to 6-2, in the unloading area, the discharge chute 211 corresponding to each discharge station is provided with a cylinder mechanism 130 for opening or closing the opening at the bottom of the bin 100, and each cylinder mechanism 130 is mounted to the unloading area platform 132 through a cylinder fixing bracket 131.

The air cylinder mechanism 130 can be a precision guide rod air cylinder, and comprises a first fixing block 1301, a second fixing block 1302, a sliding block 1303, a suction cup fixing support 1304, a first suction cup 1305, a second suction cup 1306 and a guide rod 1307.

The plurality of groups of fixing bracket mounting holes 1310 on the suction cup fixing bracket 1304 are fixedly mounted with the slider 1303, and the first suction cup 1305 and the second suction cup 1306 are respectively fixed with the suction cup fixing bracket 1304 through bolts;

the slider 1303 is connected to the driving output end of the air cylinder, the slider 1303 penetrates through and is movably connected to the guide rod 1307, and the shaft ends of the guide rod 1307 are respectively and fixedly connected between the first fixed block 1301 and the second fixed block 1302;

the first fixing block 1301 is fixedly connected to the cylinder fixing bracket 131 through a first fixing block mounting hole 1309 on the first fixing block and the second fixing block 1302 through a second fixing block mounting hole 1308 on the second fixing block, respectively.

With the cylinder mechanism 130 of the above structure, when the bin 100 reaches the designated unloading area, the slider 1303 of the cylinder mechanism 130 is driven by air force to move linearly along the guide rod 1307, and the first suction cup 1305 and the second suction cup 1306 fixed on the suction cup fixing bracket 1304 are pushed out to suck the drawing plate 103; while the slider 1303 continues to move, the draw plate 103 is opened and the packages in the bin 100 fall into the discharge chute 211. When the goods are completely unloaded, the slider 1303 moves in the opposite direction to drive the drawing plate 103 to close the opening at the bottom of the bin 100 again, so that the bin 100 can move along the roller conveyor line to the loading area to continuously collect the goods sorted from the cell chute 205.

As shown in fig. 7, in the loading area, at the bottom of each double-layer lattice sliding groove 205 of the matching and butting double-layer sorting loop 201, an RFID loading position reading device 109 and a full-box detection photoelectric assembly 108 are arranged.

When the empty bin 100 reaches the corresponding slot 205 of the loading area, that is, enters the signal emitting area of the RFID loading position reading device 109, the RFID chip 107 on the bin 100 receives the radio frequency signal emitted by the RFID loading position reading device 109, so that the energy obtained by the induced current sends out the number information of the bin 100 itself stored in the RFID chip 107, and the corresponding bin number information is transmitted to the PLC of the control system by the RFID loading position reading device 109, thereby completing the positioning control of the bin 100 at the slot 205. Through the information acquisition and confirmation process, the corresponding relationship between the goods conveyed on the sorting loop 201 and the specific bin 100 is established, so as to further control the goods to be smoothly and accurately sorted into the specified bin 100.

Further, the full bin detection photovoltaic assembly 108 monitors the entire process as the bin 100 collects cargo. Once the bin full detection opto-electronic unit 108 sends a signal to the PLC of the control system, which in turn sends a command to close the hatch chute 205, while the motorized roller 110 of the roller conveyor line is re-operating to convey the bin 100 to the next process.

As shown in fig. 8, the unloading area is provided with RFID unloading position reading devices 112 at the top of each discharge chute 211 and at the side of the roller conveyor line in matching butt joint.

When the bin 100 full of goods arrives at the designated discharge chute 211 on the roller conveyor line, the RFID discharge position reading device 112 reads the information stored in the RFID chip 107; the in-place signal is transmitted to the PLC of the control system, and is collated with the in-place signal through a sorting task between the goods established in the loading area and the bin 100. Only under the premise of correct calibration, the control system sends out a command to control the electric roller 110 in the area to stop running, the air cylinder mechanism 130 drives the drawing plate 103 to open the bottom opening of the bin 100, and the packages fall into the bag collecting 213 through the discharging chute 211.

The pack pockets 213 below the discharge chute 211 have a volume matching that of the bin 100, one pack pocket 213 for each discharge of the bin 100.

An RFID writing device or a printer may be provided in the unloading area, and an RFID number or a barcode may be generated according to an address code of the unloading chute 211 in the control system, so as to be correspondingly bound with the packages in the bag collecting 213. The fully loaded and completed bag 213 is pushed into the back-pack line 216.

On the basis of the structural design of the automatic goods conveying and packaging device, the automatic goods conveying and packaging method is realized.

As shown in fig. 9, the automatic cargo conveying and packing method includes the following steps:

1) material box turnover

The material box 100 circularly rotates and runs on a roller conveying line consisting of a plurality of groups of electric rollers 110 and unpowered rollers 111;

2) and loading the goods

When each empty bin 100 reaches the grid chute 205 of the loading area, the RFID loading position reading device 109 reads the number information in the RFID chip 107 on the bin 100 to generate a bin number designation code;

the information is uploaded to a PLC of the control system, and whether the designated bin number code is consistent with the address code of the grid chute 205 in the control system is judged; if the two are not consistent, the work bin 100 continues to operate; if the two codes are consistent, stopping the operation of the bin 100, and simultaneously enabling the goods to enter the bin 100 with the specified code;

the full bin detection photovoltaic assembly 108 monitors the entire loading process; once the goods are fully received, the full box detection photoelectric assembly 108 sends a signal to the PLC of the control system, and then the control system sends a command to close the grid chute 205, and simultaneously, the electric roller 110 on the roller conveying line operates again to convey the bin 100 forwards;

3) unloading the cargo

When each full bin 100 reaches the discharge chute 211 of the discharge area, the RFID discharge space reading device 112 reads the number information stored in the RFID chip 107 to generate a bin number designation code;

the information is uploaded to a PLC of the control system, and whether the designated code of the bin number is consistent with the address code of the discharging chute 211 in the control system is judged; if the two are not consistent, the work bin 100 continues to operate; if the two are consistent, the work bin 100 stops running, the air cylinder mechanism 130 drives the drawing plate 103 to open the bottom opening of the work bin 100, and the packages fall into the bag collecting bag 213 through the discharging chute 211;

the cylinder mechanism 130 again drives the draw plate 103 to close the bottom opening of the bin 100 and the empty bin 100 is again turned around along the roller conveyor line back to the loading area.

4) Build a bag

The bag collecting bag 213 below the discharge chute 211 collects the goods in the bin 100 one at a time;

after the goods are collected, the bag collecting bag 213 is bound and built by manpower;

generating an information bar code of the bag collecting bag 213 according to the address code of the discharging chute 211 by an RFID writing device, or generating an RFID number of the bag collecting bag 213 according to the address code of the discharging chute 211 by a printer;

the information bar codes or the RFID numbers and the goods in the bag collecting bag 213 establish one-to-one corresponding binding information;

the bag collecting bag 213 after the bag building is completed is pushed into the bag returning line 216, and the next warehousing procedure is performed.

And 2), the loading area is provided with a double-layer sorting loop 201, a sorting trolley 204 which runs on the sorting loop 201 and conveys the goods and a double-layer grid opening sliding groove 205, the sorting trolley 204 runs to the specified grid opening sliding groove 205 according to the sorting task generated by the control system, and the goods are sorted into the bin 100 below through the grid opening sliding groove 205.

Furthermore, a plurality of pairs of photoelectric detection assemblies 113 and photoelectric receiving assemblies 114 are arranged on the roller conveying line corresponding to a plurality of double-layer grid chutes 205 of the loading area and a plurality of discharging chutes 211 of the discharging area; when the bin 100 reaches a designated position according to the operation of the sorting task, the photoelectric detection assembly 113 and the photoelectric receiving assembly 114 generate detection signals and upload the detection signals to the control system;

further, at the bottom of each double-layer lattice sliding groove 205 of the matching and butt-joint double-layer sorting loop 201, an RFID loading position reading device 109 and a full-box detection photoelectric assembly 108 are arranged;

when the empty bin 100 reaches the corresponding slot 205 of the loading area, the RFID chip 107 on the bin 100 receives the radio frequency signal sent by the RFID loading position reading device 109, so that the energy obtained by the induction current sends out the number information of the bin 100 stored in the RFID chip 107, and the corresponding bin number information is transmitted to the PLC of the control system by the RFID loading position reading device 109, thereby completing the positioning control of the bin 100 at the slot 205;

through the information acquisition and confirmation process, the corresponding relationship between the goods conveyed on the sorting loop 201 and the specific bin 100 is established, so as to further control the goods to be smoothly and accurately sorted into the specified bin 100.

Further, when the bin 100 collects goods, the full bin detection photovoltaic assembly 108 monitors the entire process; once the bin full detection opto-electronic unit 108 sends a signal to the PLC of the control system, which in turn sends a command to close the hatch chute 205, while the motorized roller 110 of the roller conveyor line is re-operating to convey the bin 100 to the next process.

The step 3), the unloading area is provided with unloading chutes 211 corresponding to the unloading positions, bag hanging frames 212 and bag collecting bags 213 which are positioned at the bottom of each unloading chute 211, a roller table 215 and a bag returning line 216; the goods conveyed to the discharge area through the bin 100 are collected in the bag 213 through the discharge chute 211.

Further, in the discharge area, a cylinder mechanism 130 for opening or closing the bottom opening of the bin 100 is provided corresponding to the discharge chute 211 of each discharge station; when the bin 100 reaches the designated unloading area, the slide block 1303 of the air cylinder mechanism 130 moves linearly along the guide rod 1307 under pneumatic drive, and the first suction cup 1305 and the second suction cup 1306 fixed on the suction cup fixing bracket 1304 are pushed out to suck the drawing plate 103; while the slider 1303 continues to move, the drawing plate 103 is opened, and the packages in the bin 100 fall into the discharge chute 211;

when the goods are completely unloaded, the slider 1303 moves in the opposite direction to drive the drawing plate 103 to close the opening at the bottom of the bin 100 again, so that the bin 100 can move along the roller conveyor line to the loading area to continuously collect the goods sorted from the cell chute 205.

Furthermore, the unloading area is provided with an RFID unloading position reading device 112 at the top of each unloading chute 211 and at the side of the roller conveying line in matching and butting connection; when the bin 100 full of goods arrives at the designated discharge chute 211 on the roller conveyor line, the RFID discharge position reading device 112 reads the information stored in the RFID chip 107; the in-place signal is transmitted to a PLC of a control system, and is corrected with the in-place signal through a sorting task between the goods established in the loading area and the material box 100; only under the premise of correct calibration, the control system sends out a command to control the electric roller 110 in the area to stop running, the air cylinder mechanism 130 drives the drawing plate 103 to open the bottom opening of the bin 100, and the packages fall into the bag collecting 213 through the discharging chute 211.

Further, an RFID writing device or a printer is arranged in the unloading area, and an RFID number or a barcode is generated according to an address code of the unloading chute 211 in the control system, so as to be correspondingly bound with the packages in the bag collecting bag 213.

And 4), conveying the packed bag collecting bags 213 to a bag returning line 216 through a roller table 215, and finally uniformly collecting to finish the whole automatic conveying and bag building process.

In summary, the embodiments presented in connection with the figures are only preferred. Those skilled in the art can derive other alternative structures according to the design concept of the present invention, and the alternative structures should also fall within the scope of the solution of the present invention.

Claims

1. The automatic goods conveying and bag building method is characterized by comprising the following steps: comprises the following implementation steps of the following steps of,

1) material box turnover

2) and loading the goods

3) unloading the cargo

4) Build a bag

2. The automatic cargo conveying and packing method according to claim 1, characterized in that: in the step 2), a plurality of pairs of photoelectric detection assemblies and photoelectric receiving assemblies are arranged on the roller conveying line corresponding to a plurality of double-layer grid chutes of the loading area and a plurality of discharging chutes of the discharging area; when the bin runs to a designated position according to a sorting task, the photoelectric detection assembly and the photoelectric receiving assembly generate detection signals and upload the detection signals to the control system.

3. The automatic cargo conveying and packing method according to claim 2, characterized in that: an RFID loading position reading device and a full box detection photoelectric assembly are arranged at the bottom of each double-layer lattice opening sliding groove of the matching and butting double-layer sorting loop line;

when the unloaded material box reaches the corresponding grid opening sliding groove of the loading area, the radio frequency signal sent by the RFID loading position reading device is received by the RFID chip on the material box, so that the self number information of the material box stored in the RFID chip is sent out by the energy obtained by the induced current, and the corresponding material box number information is transmitted to the PLC of the control system by the RFID loading position reading device, thereby completing the positioning control of the material box at the grid opening sliding groove;

through the information acquisition and confirmation process, the corresponding relation between the goods conveyed on the sorting loop and the specific material box is established.

4. The automatic cargo conveying and packing method according to claim 3, wherein: when the material box collects goods, the full box detection photoelectric assembly monitors the whole process; once the goods are fully received, the full box detection photoelectric assembly sends a signal to the PLC of the control system, and then the control system sends an instruction to close the lattice opening sliding groove, and meanwhile, the electric roller on the roller conveying line operates again and conveys the bin to the next procedure.

5. The automatic cargo conveying and packing method according to claim 4, wherein: in the step 3), an air cylinder mechanism for opening or closing an opening at the bottom of the material box is arranged in the unloading area corresponding to the unloading chute of each unloading station; when the material box reaches the position of a designated unloading area, the sliding block of the air cylinder mechanism moves linearly along the guide rod under the driving of air force, and the first sucking disc and the second sucking disc which are fixed on the sucking disc fixing support are pushed out to suck the drawing plate; the drawing plate is opened while the sliding block continues to move, and the packages in the material box fall into the discharging chute;

when the goods are completely unloaded, the sliding block moves in the opposite direction to drive the drawing plate to close the opening at the bottom of the material box again, and then the material box can move to a goods loading area along the roller conveying line and continuously collect the goods sorted from the grid sliding groove.

6. The automatic cargo conveying and packing method according to claim 5, wherein: the unloading area is provided with an RFID unloading position reading device at the top of each unloading chute and the side of the roller conveying line in matched butt joint; when a bin full of goods reaches a specified unloading chute on the roller conveying line, the RFID unloading position reading device reads information stored in an RFID chip; the in-place signal is transmitted to a PLC of a control system, and is corrected with the in-place signal through a sorting task between the goods and a material box established in a loading area; only under the premise of correct calibration, the control system sends an instruction to control the electric roller in the region to stop running, the air cylinder mechanism drives the drawing plate to open the bottom opening of the material box, and the package falls into a bag collecting bag through the discharging chute.

7. The automatic cargo conveying and packing method according to claim 6, wherein: and an RFID writing device or a printer is configured in the unloading area, and an RFID number or a bar code is generated according to the address code of the unloading chute in the control system so as to correspondingly bind the RFID number or the bar code with the packages in the bag collecting bag.