CN211282740U - Finished cigarette high-speed laser scanning code recognition sorting system - Google Patents

Abstract

The utility model discloses a high-speed laser scanning code identification and sorting system for finished cigarettes, which belongs to a high-speed automatic sorting system for finished cigarettes. Stack conveying system, smoke box return conveying, sliding shoe type high-speed sorting system based on industrial computer platform. The high-speed barcode scanning and sorting system for finished cigarettes based on an industrial computer platform of the utility model innovates the traditional sorting system based on a PLC platform. When the industrial computer is used as the main controller for sorting, the PLC is used as the overall structure of the entire sorting system. The controller, that is, the industrial computer is responsible for the control of the sorter, and the sorting main control PLC is responsible for the conveying system that cooperates with the sorter, such as the return conveying system, the confluence conveying system and the stacking conveying system.

Description

A high-speed laser scanning code identification and sorting system for finished cigarettes

technical field

The utility model belongs to a high-speed automatic sorting system for finished smoke, in particular to a high-speed sorting system based on laser scanning code identification.

Background technique

Due to the continuous advancement of tobacco informatization construction and the extensive use of agile manufacturing systems in cigarette factories, the production capacity of cigarette factories has been greatly improved. Since each cigarette company has many brands, how can multiple brands of cigarette boxes be quickly and accurately classified? Picking into the warehouse is an important technical guarantee to ensure the smooth progress of production and accurate statistics of inventory information. At the same time, under the background of China Tobacco's implementation of "No. 1 Project", "No. 1 Project Code" and "Commodity Code" are provided for each brand of finished cigarettes. By identifying these two codes, the sorter can quickly distinguish the finished cigarettes. The finished products are put into storage after palletizing, and the information is reported to the upper warehouse management system (WMS) in order to achieve accurate management of inventory information.

Laser scanning code recognition technology is a new technology that integrates coding, identification, data processing and collection. The laser scanner emits a beam of light through a laser diode, which is irradiated on a rotating prism or a mirror that swings back and forth. The reflected light passes through the reading window and shines on the surface of the barcode. The light is reflected by the bar or empty and returns to the reader. It is collected and focused by a mirror, and converted into an electrical signal by a photoelectric converter. The signal will be decoded by the decoding software on the scanner or terminal, and the encoded information obtained by the decoding will be processed later.

The commodity code is the digital information representing the commodity, and the commodity bar code is a symbol representing this information, and the commodity code corresponds to the brand name of the brand one by one. In 2003, the National Bureau launched the construction of a decision-making management system for the production and operation of cigarettes in the industry. The decision-making system is referred to as "Project No. 1" in the industry, and "Project No. 1" is the basic information carrier of this project. In addition to the product code information, the "No. 1 project code" also includes information such as the machine, team, production date and other information that produced the cigarette. By reading the finished product code of the cigarette box and the "No. 1 project code", both are reflected by A group of graphics composed of black and white bars and blanks with large differences in rate. These "bars" and "voids" contain a set of digital information. The information contained in the commodity code includes: country, product name.

WMS is the abbreviation of Warehouse Management System. The warehouse management system is used for batch management, material correspondence, inventory count, quality through functions such as inbound business, outbound business, warehouse allocation, inventory allocation and virtual warehouse management. A management system that integrates functions such as inspection management, virtual warehouse management and real-time inventory management, effectively controls and tracks the entire process of logistics and cost management of warehouse operations, and realizes or improves enterprise warehousing information management. The system can perform inventory operations independently, and can also be used in combination with documents and vouchers from other systems, providing enterprises with more complete enterprise logistics management processes and financial management information.

High-speed slider-type sorter based on industrial computer (IPC) control platform, industrial computer refers to a computer professionally used in the industrial field, and can also be used as a controller in the production field. Because the program running mode of PLC (programmable controller) adopts the cyclic scanning mode, and the CPU (central processing unit) of PLC is relatively backward compared with industrial computers, the program running speed of PLC is far less than that of industrial computers. Where the program running speed is required to be higher, the use of industrial computers has become a development trend. The sliding shoe sorter is a special form of slat conveyor. The surface of the conveyor is composed of metal strips or tubes, such as bamboo mats, and on each strip or tube there is a guide slider made of hard material, which can slide laterally along the strip. Usually, the slider stops at the side of the conveyor. The lower part of the slider is connected with the guide groove under the strip. There is a cylinder on the guide groove. The direction of the guide groove can be changed by lifting the cylinder. When the goods arrive at the designated crossing, the controller sends a signal, the cylinder rises to change the direction of the guide groove, so that the sliding block automatically slides to the opposite side of the conveyor in an orderly manner, and the goods are pushed to the sorting crossing through the sliding shoes, so that the goods is led out of the main conveyor. This method is to gradually push out the goods sideways without impacting the goods, so the goods are not easy to be damaged. It has a wide range of applications for the shape and size of the sorted goods. Due to the high speed of the high-speed sorter and the high requirements for the controller operation, the traditional PLC cannot meet the use requirements of the high-speed sorter. Therefore, most high-speed sorters currently use industrial computers as their control platforms.

Utility model content

The utility model provides a high-speed scanning code sorting system for finished cigarettes based on an industrial computer platform, which innovates the traditional sorting system based on a PLC platform. The overall controller of the system, the industrial computer, is responsible for the control of the sorter.

In order to achieve the above purpose, the present invention adopts the following technical solutions: the high-speed laser scanning code identification and sorting system for finished cigarettes includes a laser identification system, a WCS warehouse control system, a stacking conveying system, and a return conveying of smoke boxes, based on industrial A sliding shoe type high-speed sorting system on a computer platform; the laser identification system is installed at the head of the sorter, at the junction of the two conveyor belts, and forms an array through multiple laser scanners;

The described stacking conveying system consists of 10 small roller conveyors and a smoke box turning machine;

In the smoke box return conveying system, the system and the sorter form an approximate elliptical closed loop; in the smoke box confluence conveying system, the system conveys the finished smoke of each conveyor belt into one conveyor belt. , so that the finished smoke boxes pass through the code scanning station in turn and enter the sorter, which is convenient for sorting by the sorter.

Preferably, the code scanning station includes a top code scanner 1, a side azimuth code scanner 2, a trigger photoelectric detection 3, a bottom camera 4, an encoder 5, a communication module I6, a communication module II7, a belt conveyor 9, a scanning Code station bracket 10. The said scanning station bracket 10 is provided with a belt conveyor 9, the belt conveyor 9 passes through the inside of the scanning station bracket 10, the side azimuth scanner 2 is installed on the inner side of the belt conveyor 9, and the encoder is installed at the bottom. 5; the top of the scanning station bracket 10 is installed with the top scanner 1, and the bottom of the scanning station bracket 10 is installed with the bottom camera 4, the communication module I6, and the communication module II7; Trigger photoelectric detection 3; top code scanner 1, side azimuth code scanner 2, trigger photoelectric detection 3, bottom camera 4, encoder 5 are connected to communication module I6 and communication module II7.

Preferably, in order to improve the efficiency and stability of data transmission, a local area network using the master-slave mode is constructed between the scanning docks in the laser recognition system, that is, one of the scanning docks is used as the master station. The corresponding data is sent to the master station, and then the corresponding data is sent to the upper WCS (warehouse control system) through the master station.

Beneficial effects of the utility model:

The high-speed barcode scanning and sorting system for finished cigarettes based on an industrial computer platform of the utility model innovates the traditional sorting system based on a PLC platform. When the industrial computer is used as the main controller for sorting, the PLC is used as the overall structure of the entire sorting system. The controller, that is, the industrial computer is responsible for the control of the sorter, and the sorting main control PLC is responsible for the conveying systems that cooperate with the sorter, such as the return conveying system, the confluence conveying system and the stacking conveying system, which not only improves the control accuracy, but also It also improves the production and operation efficiency of the equipment. At the same time, instead of using the traditional single-set identification system, multiple laser scanners are used to form a whole scanning system to realize 360-degree all-round identification, which improves the efficiency of scanning identification and greatly avoids the The barcode sticking position is inconsistent and the problem of reading failure occurs.

Description of drawings

Figure 1 is the control structure diagram of the sorting system;

Figure 2 is the on-site layout of the sorting system equipment;

Figure 3 is a top view of the laser scanning station;

Figure 4 is the layout diagram of the scanning station;

Figure 5 is a system structure diagram of a high-speed laser scanning code identification and sorting system for finished cigarettes.

In the figure, 1. Top scanner; 2. Side scanner; 3. Trigger photoelectric detection; 4. Bottom camera; 5. Encoder; 6. Communication module I; 7. Communication module II; 8. Cigarette pack 9. Belt conveyor; 10. Scanning station bracket.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

The high-speed laser scanning code identification and sorting system for finished cigarettes of the utility model can accurately identify and sort finished cigarettes of various specifications, and at the same time transmit the corresponding finished cigarette sorting information to the upper warehouse management system (WMS) in real time. ), in order to further illustrate the principle and structure of the present utility model, it is now described in detail in conjunction with the embodiments of the present utility model.

It can be seen from the structure diagram of the high-speed laser scanning code identification and sorting system for finished cigarettes in Figure 5 that the system consists of a confluence conveying system, a sorter, a laser scanning station, WCS (warehouse control system), a return line, and a palletizing conveying system. The confluence conveying system is responsible for converging the finished cigarettes on each conveyor belt to one conveyor belt. The laser scanning station reads the barcode on the finished cigarettes and transmits the information to the WCS system through PLC. The WCS is responsible for generating the target address and sending the address It is sent to the sorter, the sorter completes the sorting, the stacking conveying system transports the finished cigarettes to the next station according to the stacking requirements, and the return line is responsible for re-transporting the finished cigarettes that cannot be sorted normally to the confluence system. Re-identify sorting.

Please refer to FIG. 1 , the high-speed laser scanning and sorting system of the present invention includes a laser scanning station, a sorter, a warehouse control system (WCS), a confluence conveying system, a return system, and a palletizing conveying system placed on site. . The control system is divided into three levels. The top is the TIMMS warehouse management system, and the middle level is the WCS system, the confluence conveying PLC system, the sorting control PLC system, the palletizing conveying PLC system and the laser high-speed scanning station. The five systems are connected through industrial Ethernet, and the sorting machine is located on the third floor. This system is controlled by the sorting control PLC system, completes the instructions issued by the sorting control PLC system, and feeds back the completed information to the upper-level system. , the sorter is controlled by an industrial computer.

Please refer to Figure 2. The equipment installed on site of the high-speed code scanning sorting system mainly consists of a confluence conveying system, a code scanning station, a sorter, a return line conveyor, and a stacking conveyor. The sorter, the merging line conveyor, and the return line conveyor form a loop as shown in Figure 2. The scanning station is installed on the conveyor line after the confluence of the confluence line is completed, and it is located in the warehouse of the sorter.

Please refer to Figure 3 and Figure 4. In order to ensure that the barcodes on the six outer surfaces of the smoke box can be recognized by the barcode scanner, and to improve the speed and stability of data transmission, the entire barcode scanning station is scanned by six high-speed laser scanners. The wharf forms an omnidirectional high-speed code scanning station. As shown in Figure 3 and Figure 4, the six scanning terminals are installed in the directions corresponding to the six sides of the smoke box. In order to ensure that the bottom of the smoke box can also be identified normally, The bottom sweeping dock is installed at the junction of the two conveyors, and the sweeping dock can identify the barcode at the bottom of the smoke box through the gap between the conveyors. In order to ensure that the scanning dock located on the side can be in the maximum effective identification area of code scanning, the scanning dock on each side should maintain an angle of 45 degrees with the side.

In order to ensure the efficiency and stability of data transmission during the data transmission process of the scanning terminal, the six scanning terminals form a small local area network in master-slave mode (M/S), that is, the code scanner 1 located at the top of the scanning station is used as the The main station, the other four cameras located on the side scanning dock 2 and the bottom camera 4 are sub-stations, they are used to identify different barcodes, and the unproduct code recognized by the dock 2 on the side, the camera 4 located at the bottom and the top scanner 1 Identify the "No. 1 project code", when the sub-stations 2 and 4 recognize the barcode, they will transmit the corresponding data to the master station 1 through the local area network, and the master station 1 will send the collected data to the main control PLC, and then send the data to the main control PLC through the PLC. The corresponding data is transmitted to the upper WCS system through the communication interface module 4 . In order to ensure that the barcode scanning and identification system can be used in the production process, due to the large number of cigarette boxes, the error of reading the barcode and the corresponding cigarette box will not occur. The scanning station adopts the working mode of PackTrack. With the patented operation mode of the reading station, when different cigarette boxes appear in the same scan code reading area, the code scanner can correctly correspond the read code to the correct cigarette box. In order to ensure the correct operation of PackTrack™, an encoder 5 and a trigger photoelectric detection 3 are installed in the system design. When the photoelectric detection 3 finds the smoke box, the scanning station is triggered to read the barcode and record it through the encoder 5. The phase of the current encoder, through the phase, makes the barcode and the smoke box correspond one-to-one, so as to ensure that the barcode is in one-to-one correspondence with the real object.

The specific work of the scanning station is described as follows: the two conveyor motors are equipped with encoders and are driven by frequency converters. The operating frequency of the frequency converters is set by the upper PLC. The encoders feed back the speed of the motors to the frequency converters in real time. Signal, adjust the output frequency to ensure that the motor runs at the speed set by the PLC, and to ensure that the speed of each conveyor is matched, so as not to cause smoke box tracking errors, there is a photoelectric detection 3 between the conveyors 9, this detection is used to trigger Scanning station, that is, when the smoke box is detected, a trigger signal is sent to trigger the scanning station to work. At this time, the main scanning terminal 1 and the sub-scanning terminal 2 work at the same time to read the barcode on the corresponding surface. The result is sent to the main scanning terminal 1, and the main scanning terminal 1 transmits the corresponding data to the CPU module of the PLC through the communication interface module, and then the data is transferred by the module.

Real-time transmission to the upper WCS system.

After receiving the read "No. 1 Engineering Code" and "Commodity Code", the WCS system judges the brand of the finished cigarette, and at the same time generates the sorting target address in real time according to the task information issued by the upper TIMMS management system and sends it to the The main control PLC of the sorter system, the main control PLC then transmits the specific sorting target address to the industrial computer of the sorter. As can be seen from Figure 2, the sorter has 15 exits and one rejection port, and within the same production time Each sorting port corresponds to one brand of finished cigarettes, or multiple sorting ports correspond to one brand. If there is only one brand corresponding to one sorting port, there is only one destination address; if there are multiple sorting ports corresponding to one brand When the finished cigarettes are received, the WCS system will give the sorter multiple target addresses, and the address can be given at most 4 for the industrial computer of the sorter to choose independently according to the operation of the equipment. Sorting target address After receiving the sorting target address, the industrial computer detects the target address, determines which sorting port is the best sorting port, and then calculates the current position of the cigarette box to be sorted. When picking the mouth, the finished smoke is sorted out through the sorting slipper. If the brand identified in the box of finished cigarettes does not currently correspond to the brand of finished cigarettes at each sorting port, the box of finished cigarettes will be removed from the rejection port. If the brand name is not correctly identified or the finished cigarette cannot be sorted due to data loss or other reasons, the finished cigarette will be transported to the return line for re-identification and sorting by the sorter.

The palletizing conveying system, according to the equipment layout of the high-speed scanning and sorting system in Figure 2, it can be seen that the palletizing conveying system is connected to 15 sorting crossings and one rejection crossing. From this layout, we can find that the entire palletizing system has 15 It is composed of bar palletizing conveying channel and rejecting channel. When the finished cigarettes enter the confluence system and are sorted by the sorter, the finished cigarette boxes enter the sorting chute, and the finished cigarette boxes will first pass through the belt conveyor. After that, the finished smoke boxes will pass through the roller side conveyor, and the rollers and other mechanical devices will be passed on this conveyor belt, so that the smoke boxes can be conveyed by one side of the conveyor, and the next conveyor and the equipment installed on it will be paired. The smoke box is rotated and turned up in preparation. The finished smoke boxes will be sorted in the buffer section, waiting to be rotated and turned up. The buffer stacking section can put the smoke boxes into the rotating device one by one. Smoke boxes that have passed the rotating device will wait before the device is turned up. If the flip-up device is already in place, the cigarette case will enter the flip-up device. The turning-up device is installed between the conveyors, driven by a motor, and achieves a smooth and smooth turning-up through frequency conversion speed regulation. The turned-up cigarette boxes will enter the stacking station one by one. At this time, according to the stacking process of the stacked cigarette boxes, when the number reaches the stacking requirements, the positioning push rod device will move to the right to push the cigarette boxes. Rely on the right baffle of the conveyor for positioning, and send a signal to the robot that the smoke box can be grasped, so that the robot can grasp it accurately and carry out the stacking task. If the sorting and merging system finds that the current sorting task does not match the finished cigarettes of certain brands, it will remove the finished cigarettes of these brands from the rejection channel.

The specific embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings, but the present utility model is not limited to the above-mentioned embodiments, and within the scope of knowledge possessed by those of ordinary skill in the art, the utility model can also be used without departing from the purpose of the present utility model. Various changes are made under the premise.

Claims (3)

1. The utility model provides a sign indicating number discernment letter sorting system is swept to finished product cigarette high speed laser which characterized in that: the finished product cigarette high-speed laser code scanning, recognizing and sorting system comprises a laser recognition system, a WCS warehouse control system, a stacking and conveying system, a cigarette box backflow conveying system and a sliding shoe type high-speed sorting system based on an industrial computer platform; the laser identification system is arranged at the head part of the sorting machine, and an array is formed at the joint of the two conveying belts through a plurality of laser code scanners;

the stacking conveying system consists of 10 small roller conveyors and a cigarette box overturning machine;

the smoke box backflow conveying system and the sorting machine form a closed loop similar to an ellipse; the cigarette box confluence conveying system conveys the finished cigarettes of each conveying belt to a conveying belt in a confluence manner, so that the finished cigarette boxes sequentially pass through the code sweeping station and enter the sorting machine, and the sorting machine is convenient to sort.

2. The finished cigarette high-speed laser code scanning, identifying and sorting system of claim 1, wherein: the code scanning station comprises a top code scanner (1), a side code scanner (2), a triggering photoelectric detector (3), a bottom camera (4), an encoder (5), a communication module I (6), a communication module II (7), a belt conveyor (9) and a code scanning station support (10), wherein the belt conveyor (9) is installed on the code scanning station support (10), the belt conveyor (9) penetrates through the code scanning station support (10), the side code scanner (2) is installed on the inner side of the belt conveyor (9), and the encoder (5) is installed at the bottom of the belt conveyor; the top of the code scanning station support (10) is provided with a top code scanner (1), and a bottom camera (4), a communication module I (6) and a communication module II (7) are arranged below the code scanning station support (10); a trigger photoelectric detection device (3) is arranged above the space between the two belt conveyors (9); the top code scanner (1), the side code scanner (2), the triggering photoelectric detector (3), the bottom camera (4) and the encoder (5) are connected with the communication module I (6) and the communication module II (7).

3. The finished cigarette high-speed laser code scanning, identifying and sorting system of claim 1, wherein: in order to improve the data transmission efficiency and stability, a local area network adopting a master-slave mode is arranged between the scanning heads in the laser identification system, namely one scanning head is used as a master station, each substation transmits corresponding data to the master station after acquiring the data, and then transmits the corresponding data to an upper WCS (warehouse control system) through the master station.

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