High-speed gravure online QR code printing
We are a big printing company in Shenzhen China . We offer all book publications, hardcover book printing, papercover book printing, hardcover notebook, sprial book printing, saddle stiching book printing, booklet printing,packaging box, calendars, all kinds of PVC, product brochures, notes, Children's book, stickers, all kinds of special paper color printing products, game cardand so on.
For more information please visit
http://www.joyful-printing.com. ENG only
http://www.joyful-printing.net
http://www.joyful-printing.org
email: info@joyful-printing.net
In recent years, with the popularization of intelligent terminals, QR code has been used as the best network portal, and it has been used more and more on cigarette packets. It plays a role in anti-counterfeiting, anti-smuggling, quality traceability, and product traceability. It has played a huge role and has become an important technical means for tobacco companies to carry out brand promotion and interact with consumers. At present, packaging and printing enterprises generally adopt offline two-dimensional code printing platform, but this technology has the disadvantages of slow production speed, many production processes and low efficiency. Through technology research and development, we realized gravure online QR code printing, and adopted a database-centered two-dimensional code data management system to integrate gravure printing, two-dimensional code printing and inspection into a unified system, and successfully realized gravure printing. The online QR code printing process opens up a new journey for digital printing of cigarette packets.
System composition
The whole set of gravure online QR code printing system consists of data center, variable two-dimensional code assigning device, two-dimensional code online printing device and online detecting device.
1. Data center
The two-dimensional code data management system centered on the resource management system connects the client, the enterprise, the workshop and the printing machine printing device through the network to realize the function of transmitting, storing and processing the source code data.
2. Variable two-dimensional code assigning device
The variable two-dimensional code assigning device comprises a resource management system database server, an assigning machine, an industrial control network for connecting the two-dimensional code online printing device and the coder, and a detecting device and a device for connecting the online inspecting machine. The network switch of the code machine. Install the resource management system database server on the main console, install the coder and the industrial control network on the operation side of the gravure printing machine, and install the network switch on the operation surface of the online inspection machine. The device enables a conventional high-speed rotary gravure printing machine to realize variable-speed two-dimensional code high-speed online coding.
3. Two-dimensional code online printing device
The two-dimensional code online printing device comprises a receiver, a code encoder, a color code sensor, a coded industrial control PLC, a speed control PC, a code printing industrial machine and an inkjet device. Among them, the coding code encoder and the color code sensor are all connected with the receiver and the inkjet industrial control PLC, and the inkjet industrial control PLC, the speed control PC, the inkjet industrial computer and the inkjet device are sequentially connected, and the code encoder and the color code sensor are connected. And the ink jet device are mounted on the side of the front roller of the two-dimensional code printing color group and are printed toward the two-dimensional code color group. The device can automatically collect the printing color registration mark signal and the paper speed signal, so that the printing speed can match the printing speed, and realize the online synchronous printing of the two-dimensional code.
4. Online detection device
The two-dimensional code online detecting device comprises a camera, a detecting encoder, a color mark sensor, a detecting industrial PLC, a first PC, a network switch, a second PC and a chip removing machine. Wherein, the detection encoder, the color code sensor, the first PC machine and the chip removing machine are all connected with the inspection industrial control PLC, and the camera, the detection encoder and the color code sensor are all on the guide roller side of the last printing color group of the gravure printing machine. And facing the printing color group, the first PC is connected to the second PC through the network switch, and the second PC is connected to the two-dimensional code online printing device on the gravure printing machine, and the first PC is also connected to the camera. The pick-up machine is used to reject unqualified prints on the gravure-receiving unit. The device is also used in a high-speed rotary gravure printing machine, which can realize the on-line synchronous detection function of the two-dimensional code of the conventional high-speed rotary gravure printing machine, and automatically rejects the products whose two-dimensional code is unqualified.
System functions
The flow chart of the gravure online QR code printing system is shown in Figure 1. Based on the scientific structure, the system can realize many functions.
1. Accurate access to source code
The source code has two ways: client acquisition and system automatic generation.
(1) The source code is provided by the client. Authorized by the customer can directly download and use the required source data through the network port. The system supports the source data format, and the source code data is recommended to be compatible with the text file of the ANSI specification format. The obtained source data is imported into the dedicated data comparison software for historical data comparison, and it is possible to detect whether a re-code has occurred.
(2) The system automatically assigns codes. The authorized two-dimensional code database is managed by the resource management system, and the corresponding two-dimensional code data packet is automatically generated according to the production information and sent to the online code assigning device, and the online code assigning device converts the two-dimensional code data information into the two-dimensional code to be printed. Encrypt the order stack data and push it to the QR code online printing device to realize online automatic code assignment of the variable QR code.
2. Code division function
The system can control multiple QR code online printing equipments, and use the system code division software to distribute the source code data according to different machine, order and usage quantity requirements, and transmit them to the corresponding machine through the system.
3. Source data automatic detection function
The source code data that has been allocated and corresponding to the order is imported into the machine print control software, which can automatically detect whether the source code data is safe and usable, whether there is garbled code, heavy code, etc., and give feedback in time.
4. Automatic registration function
The gravure online QR code printing system has an automatic registration function, which is consistent with the position of the printed pattern, reducing the product loss caused by the coding process.
5. Online detection function
The gravure online QR code printing system can detect the alarm, automatically reject the waste and accurately record the position of the unqualified product, so as to eliminate the non-conforming product.
6. Reading code storage function
The coded product uses a specific reading device to store the collected code segment data information to a designated server.
7. Data upload function
The collected code segment data information is uploaded to the designated database through the database.
System advantage
1. Guarantee high quality QR code
The gravure online two-dimensional code printing system uses a resource management system to manage an authorized two-dimensional code database, and the system can automatically generate a corresponding two-dimensional code data packet according to the production information and send it to the assigning device, and the assigning device pushes it to The two-dimensional code online printing device, and accurate overprinting, to ensure that the two-dimensional code printed on the line is clear and complete, no defects, no through-cutting wire defects, the shape of the code is square, no obvious distortion, there is no space between characters. Moreover, the accuracy and resolution of the two-dimensional code can be ensured, and the two-dimensional code is centered on the four sides of the frame line, the position error is ≤±0.3 mm, and the resolution of the two-dimensional code is not less than 600 dpi×600 dpi. At the same time, the two-dimensional code error correction level in the gravure online two-dimensional code printing system is set to ≥ M level.
2. High speed and high efficiency
The two-dimensional code online printing device of the gravure printing two-dimensional code printing system can automatically collect the printing color registration mark signal and the paper speed signal, and rotate at a high speed (about 200m/min to 250m/min). The code says that the printing speed (system printing speed ≥200m/min) can match the printing speed and realize on-line coding. This is a new idea for cigarette pack printing companies that don't know whether to choose online or offline assignment.
In addition, the two-dimensional code on-line detecting device can automatically collect the two-dimensional code information on the packaged printed matter, and compare it with the two-dimensional code stack data in real time. In the process of printing the cigarette pack, the two-dimensional code on-line detecting device can instantly detect the two-dimensional code defect of the hard-packed product and perform position marking to realize online rejection in the subsequent online cutting process; In the package printing process, the two-dimensional code on-line detecting device can record the two-dimensional code defect coordinates, and after reading the line, the problem data is read on the winder and the problem product is removed. This can greatly improve the speed of the inspection process, and is more conducive to shortening the production cycle of cigarette packets.
3. Convenient hygiene
The gravure online QR code printing system uses Kodak's nozzle + water-based ink solution. This method mainly shows two advantages compared with the traditional UV inkjet code.
(1) Safe and environmentally friendly. Water-based ink is a full-water ink, which can even meet food-grade requirements. It can meet GB 4806.1-2016 "Food Safety National Food Safety Requirements for Food Contact Materials and Products" and GB 9685-2016 "Food Safety National Standards for Food Contact Materials and Products" The National Standard for Food Safety, such as the Standards for the Use of Additives. There is no smell before, during and after printing, which is harmless to the health of the operators and more in line with environmental protection requirements.
(2) Convenient maintenance equipment. UV inks need to be equipped with specific UV curing devices. In addition, the nozzles need to be regularly maintained. Once the maintenance is not in place, the nozzles are prone to blockage after long-term use. Therefore, the company needs to stop the maintenance, which affects the production progress and generates a large amount of paper. waste. The water-based ink has no hidden dangers in this respect, and it is not only unnecessary to install a curing device, but more importantly, it is not easy to cause the nozzle to be clogged, and the equipment maintenance is convenient.
Gravure online QR code printing system is a major breakthrough for cigarette package printing enterprises to realize high-speed and high-efficiency online printing of cigarette packets. However, the application of this technology needs to be connected with the enterprise resource management system. The source code data is produced. A part of the data is distributed with the order to ensure the correspondence between the source code and the code. In addition, source code data should be transmitted over the network to ensure the security and traceability of the source code transmission process. At present, the gravure online QR code printing system has been installed on our Bobst high-speed gravure printing machine, and the online synchronous printing of the cigarette package QR code has been successfully realized. Compared with the offline assignment, the production efficiency is greatly improved. It is believed that this internationally advanced technology will provide more possibilities for the wide-scale promotion of QR codes in the tobacco package industry.