Flexo Printing Machine

1. Adobo printing machine product introduction

Adolf printing machine is a kind of printing equipment using flexographic plate as printing plate material. The principle is based on the transfer of ink from the raised graphic part to the substrate. Adagio printing machine is mainly composed of winding device, printing unit, drying system, winding device and control system.

Unwinding device

The unwinding device is used to place the coil to be printed, such as plastic film, paper, etc. It has a tension control system to ensure that the coil maintains a stable tension during the conveying process, preventing the coil from relaxing or over-stretching at high speeds. The system monitors the tension of coil in real time through the sensor, and automatically adjusts the speed of the unwinding motor to ensure the smooth supply of coil.

Printing unit

The printing unit is the core part of adagio printing machine. Each printing unit consists of a plate roller, a screen roller and an impression roller. A flexible plate is installed on the plate cylinder, and the graphic part of the surface is raised through the plate making process. The roller is responsible for evenly transferring the ink to the raised part of the printing plate, and its mesh size and shape determine the amount of ink transfer. The embossed cylinder makes close contact between the substrate and the plate, so that the ink is transferred from the plate to the substrate. Printing units can usually be increased or decreased as needed to achieve multi-color printing.

Drying system

Drying systems are critical for adplate printing because the inks used in flexographic printing are usually water-based or solvent-based and need to dry quickly to ensure print quality. Drying methods include hot air drying, infrared drying and so on. Hot air drying The hot air is blown to the printed substrate surface by the fan to accelerate the volatilization of the solvent in the ink. Infrared drying uses the thermal effect of infrared to make ink molecules move quickly and promote solvent evaporation. The temperature and wind speed of the drying system can be adjusted according to different ink types and printing speeds.

Winder

The winding device neatly wraps up the printed coil. It also has a tension control system to ensure the compactness of the winding and the flatness of the coil. During the winding process, the coil can also be measured and scutted to meet the requirements of different customers for the length and width of the printed matter.

Control system

The control system is the brain of the adjio printing machine, which can realize the automatic control of the whole printing process. The operator can set the printing speed, tension parameters, drying temperature, ink supply and other parameters through the operation panel. The control system also has the fault diagnosis function, which can monitor the operating status of the equipment in real time, and can quickly locate and display error information when there is a fault, which is convenient for maintenance personnel to carry out maintenance.

2. Technical features and advantages

High printing quality

Adagio presses achieve high quality printing results. Because the flexographic plate has good elasticity, it can better fit with the substrate surface during the printing process, even for the uneven surface of the substrate, it can ensure the uniform transfer of ink. Can print clear, delicate graphics, bright colors, high saturation. Moreover, in multi-color printing, through the accurate registration system, the overprinting accuracy between different colors can be ensured within a very small error range.

Wide range of adaptation

It can print many types of substrates, including various plastic films (such as polyethylene, polypropylene, etc.), paper (such as cardboard, corrugated paper, etc.), aluminum foil, etc. Whether it is thin film material or thicker cardboard, adagio presses can be well adapted. At the same time, it can print different ink types, such as water-based ink, solvent-based ink, UV ink, etc., to meet the requirements of different products on environmental protection, drying speed, wear resistance and so on.

High efficiency and energy saving

Adjio printing machine pays attention to high efficiency and energy saving in design. On the one hand, its printing speed is fast, and it can complete a large number of printing tasks in a short time. Some advanced adagio presses can reach a maximum printing speed of hundreds of meters per minute. On the other hand, the drying system uses energy-saving technologies, for example, by optimizing the hot air circulation path and infrared power control, while ensuring the drying effect of the ink, reducing energy consumption.

Strong flexibility

Great flexibility in printing specifications. Different sizes and patterns can be printed quickly by changing the plate, adjusting the spacing and pressure of the printing unit, etc. Moreover, Addison printing machine can also be easily connected with other equipment for online production, such as die-cutting machine, slitting machine, etc., to form a complete printing processing line, further improving production efficiency and added value of products.

3. Application field

Packaging and printing field: It has a wide range of applications in food packaging, daily necessities packaging, pharmaceutical packaging and so on. For example, the pattern and text on food packaging bags, shampoo and other daily necessities bottle stickers, medicine packaging boxes, etc., can be printed by adagio printing machines. Adplate printing can meet the requirements of packaging printing for color, pattern clarity and environmental protection, and can adapt to the printing needs of different packaging materials.

The field of label printing is one of the main equipment for label printing. Whether it is a paper label or a plastic label, the adobo press can print beautiful labels. It can realize the printing of complex patterns on labels, bar codes, two-dimensional codes, etc., and can ensure the printing quality and durability of labels, and is widely used in product labels, logistics labels and other fields.

Decorative printing field: It also has important applications in the printing of decorative materials such as wallpaper and decorative film. Various styles of patterns can be printed, such as European classical patterns, modern simple patterns, etc., to give unique visual effects to decorative materials, to meet the individual needs of different consumers for interior decoration.

4. FAQ

Q: What should I do if the printed matter is blurred?

A: First check whether the plate is installed correctly and whether there is damage or dirt on the surface of the plate. If there is a problem with the plate, you need to reinstall or replace the plate. Secondly, check the state of the mesh roller, the mesh hole of the mesh roller may be blocked, affecting the transfer amount and uniformity of ink. A special cleaning solution can be used to clean the roller. In addition, whether the pressure between the stamping cylinder and the plate cylinder is appropriate is also critical, if the pressure is improper, it will lead to incomplete ink transfer. The pressure between the two needs to be adjusted according to the thickness and material of the substrate.

Q: What is the uneven color of prints?

A: It may be caused by uneven ink supply. Check whether the ink pump is working properly, whether the ink pipeline is blocked, and ensure that the ink can be evenly transmitted to the roller. At the same time, the quality and wear of the roller itself will also affect the uniform distribution of ink. If the roller is seriously worn, it needs to be replaced in time. In addition, the uneven temperature and wind speed of the drying system may also lead to uneven color, because the inconsistent drying speed of the ink in different parts will affect the presentation of color. It is necessary to check whether the hot air circulation or infrared emission of the drying system is normal to ensure the uniformity of drying.

Q: How to solve the problem of inaccurate overprinting of printed matter?

A: The misprinting may be caused by transmission errors or tension instability between printing units. First of all, check whether the transmission gear, chain and other parts of each printing unit are worn or loose, and if there is a problem, it needs to be repaired or replaced. Second, recalibrate the registration system, modern adjio presses usually have automatic registration devices, which can be adjusted through the operating panel. At the same time, check the tension control system of the coil to ensure that the tension of the coil remains stable during the entire printing process to avoid the position deviation of the substrate during the printing process due to tension changes.

Q: Why does the printing machine suddenly stop during operation?

A: The device may have a fault alarm. Check the display of the control system for fault information. Common causes include motor overload, sensor failure, low ink level, and abnormal coil tension. If the motor is overloaded, it is necessary to check whether the motor is stuck, or whether the load is too large, such as the pressure between the printing units is too large. If the sensor is faulty, check whether the sensor is damaged or blocked. If the ink level is too low, the ink needs to be added in time. When the tension of the coil is abnormal, check the tension control system and the conveying of the coil to eliminate problems such as paper jam or coil winding.

Q: Why can't the printing speed be improved?

A: First consider the design parameters of the printing machine itself, if the maximum printing speed of the equipment itself is low, it can not be further improved. If the equipment can theoretically reach a higher speed, then check the following aspects: First, the drying speed of the ink, if the ink can not be dried in time after increasing the printing speed, it will affect the printing quality, and it is necessary to adjust the parameters of the drying system or replace the ink with a faster drying speed. The second is the tension control system of the coil, at high speed, the tension needs to be more stable, otherwise there will be problems such as the coil jitter, affecting the printing. In addition, the dynamic balance and mechanical stability of each drum in the printing unit are also important, if the drum vibrates when rotating at high speed, it will limit the improvement of the printing speed.