Information on Unwinding Feed Components in Flexo Printing Machines

The printing speed of the Flexo Printing Machine generally reaches 150m/min. Under normal operation, to reduce the number of downtimes and the waste of roll material, the unwinding feeding device must be installed. The function of the unwinding feeder is to unwind the roll of printing material, continuously and steadily feed the printing material into the printing unit, and control the speed, tension, and lateral position of the printed material before it reaches the first printing unit. The unwinding and feeding part consists of a reel holder and a set of guide rollers, and the reel holder is arranged in a straight line on the printing part. The material roll holder has electric or hydraulic components to control the lifting and lowering. Generally, the axis of the roll paper is locked by pneumatic components, and the end of the roll paper is equipped with a detector. Next, let's take a look at the information about the unwinding feeder components in Flexo Printing Machines. Here are some answers.

Here is the content list:

• Tension control system

• Edge control system

• Drive roller

• Floating roller

Tension control system

The unwinding feeding part in the Flexo Printing Machine is equipped with a digitally controlled electromagnetic brake tensioning system. It provides optimum tension control for different substrates and is unaffected by dust and dirt. Among them, the tension compensation control adopts a loop-type self-detection system, which can keep the tension of the paper continuously stable when the diameter of the web is continuously reduced.

Edge control system

The unwinding and feeding device in the high-end Flexo Printing Machine is also equipped with an edge position control system. One edge control system is installed in front of the printing unit, and the other edge control system is installed in front of the die-cutting table. This design keeps the web in the correct position throughout the production process of the Flexo Printing Machine.

Drive roller

The unwinding feed unit in the Flexo Printing Machine is also fitted with a drive roller machine. The drive roller is an easily adjustable variable speed feed roller. It controls the speed of the roll paper entering the printing unit smoothly, and together with the material roll braking device, it generates the unwinding tension of the material belt to adapt to the production of different substrates. At the same time, it also ensures that the web remains in the correct portrait position.

Floating roller

The floating roller machine for unwinding the feeding part can reduce fluctuations in the unwinding tension. At the same time, it can reduce downtime when changing rolls, to improve the efficiency of the Flexo Printing Machine. Most Flexo Printing Machines are equipped with continuous roll changers. In the case that the Flexo Printing Machine does not stop, the material can be connected well, and the floating roller is particularly important at this time.

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