Green technology: Ziguang YR420WZ web flexo printing machine
Shanghai Ziguang YR series web flexo printing machine won the 2012 "Green Technology Award". This series of products include 10 models including YR254, YR330, YR420, YR520, YR520A and YR420WZ. Among them, YR420WZ web flexo printing machine is The first domestic flexographic printing machine without shaft drive. This series of products has achieved sales of more than 70 lines at home and abroad. In addition to the domestically sold Yangtze River Delta, Pearl River Delta, Bohai Rim and Northwest, Southwest, Hong Kong, and Taiwan regions, it is also exported to Spain, Ukraine, Turkey, Iran, South Korea, Malaysia Countries. The product has considerable international competitiveness, and its technical level is close to the international advanced level. It is reported that the control system of this machine adopts the shaftless transmission control system of Rexroth, an internationally renowned company. Its feature is that each unit is driven by a set of servo system. The servo system of each unit is connected to the main controller by optical fiber to ensure The synchronous operation of each unit, the resolution of the servo motor is up to 1/4000000 revolutions, to ensure that the printing unit has a high registration accuracy. The machine body is developed on its own using CAD computer-aided design technology. The main parts are processed with a machining center and a CNC machine tool. The entire production process is quality controlled according to the ISO9001 standard. It is a substitute for imported domestic high-quality printing machines. It is suitable for printing materials such as self-adhesive paper, coated paper, cardboard, aluminum foil paper and plastic film, etc. It is an ideal equipment for printing all kinds of famous boxed bottle stickers and labels. YR4200WZ web flexo printing machine is a unit-type printing machine, which has the ability to process lines, which can greatly improve production efficiency. The application of water-based ink is an important feature of this machine, suitable for packaging and printing in food, pharmaceutical and other industries. Tension-controllable scrap rate is low In the production process of the printing press, it is very important to ensure that the tension of the web is constant for the accurate registration. Otherwise, the scrap rate of printed products will increase greatly. The YR4200WZ web flexo printing machine has a two-stage tension control system, which can ensure the quality of the printed matter. The first-level tension control system uses a potentiometer to detect the up and down position of the floating roller, and its signal is directly sent to the servo drive to form a closed-loop control system. The second-level tension control system consists of a tension sensor to detect the actual size of the paper tension, and the tension signal is directly sent to the servo drive to form a closed-loop control system. The rewinding unit also uses a potentiometer to detect the up and down position of the floating roller, and its signal is directly sent to the servo drive to form a closed-loop control system, which ensures the stability of the rewinding tension and the material is flush, providing convenience for the subsequent process. The waste rewinding unit uses pneumatic components to control the tension of the waste edge after die cutting, which is easy to operate. High register accuracy ensures quality The accuracy of overprinting directly affects the final printing quality of the finished product. The YR420WZ web flexo printing machine has two overprinting methods; manual overprinting and digital overprinting Manual overprinting is accomplished by pressing the overprinting button of each printing, die-cutting, and single-sheet unit or the overprinting button of each unit on the touch screen. The accuracy of overprinting can be set on the screen. When the distance to be overprinted is large, a lower overprinting accuracy can be selected to speed up the overprinting time. When the distance to be overprinted is small, a higher overprinting accuracy can be selected to improve the overprinting quality of the finished product. Digital overprinting is to input the distance that each unit needs to overprint on the screen, and the overprinting of each unit is completed by the control system at the same time. Quick ink change operation is simple In the flexographic printing process, the shorter it takes to clean and replace the ink fountain and the anilox roller, the higher the utilization rate of the printing equipment and the greater the economic benefits created. The rapid ink change system of the YR420WZ web flexo printing machine can replace the entire ink path system for offline cleaning without any tools in a very short time. This is particularly important for operators using water-based inks. If you need to replace anilox rollers with different screen counts in the printing experiment, it will be more convenient to use this product. Smooth transmission can be combined Most units of the YR420WZ web flexo printing machine use cast iron as the material of the wallboard and base, and the units are firmly connected to make the machine very stable during high-speed operation. All rollers are verified by dynamic balance, which improves the stability and accuracy of registration. Each unit of the machine is driven by an independent servo unit. When a unit is not required to participate in printing, the unit can be canceled on the screen. At the same time, the whole process of the movement of each unit is monitored by the main controller, and the start and stop processes are completed with smooth acceleration and deceleration to ensure the smooth movement of each unit. At the same time, the YR420WZ web flexo printing machine is also a unit-type printing machine, which has a line processing capability and can be arbitrarily combined according to different needs to meet your production needs and greatly improve production efficiency. There is a large distance between the printing units of the machine. According to the needs of users, a UV curing device for ultraviolet printing can be added, and it can be expanded into a device that can realize ink printing and all ultraviolet printing. WEIHAI WEFISH OUTDOOR PRODUCTS CO.,LTD , https://www.wefishtackle.com