Compared with the wide-format flexo printing machine, one of the biggest features of the unit-type flexo printing machine is that it can be used for online die cutting, and most of them adopt the round rounding method because the flat press flat online die cutting mechanism is more complicated Will reduce the operating speed of the printing press. The flexo printing machine is generally equipped with three die-cutting stations. The die-cutting station includes a gear-driven bottom anvil roll, a "groove" for fixing the die cutter and bottom anvil roll, and a set of A component that applies pressure to the die cutter and adjusts the pressure. The structural strength, rigidity and maintainability of the die cutting station are the key factors of die cutting.
The round die cutter is like a plate cylinder and can be adjusted longitudinally. Ordinary integral die cutters are generally made by machining methods. First of all, you need to select different grades of tool steel according to the condition of the printing material and the amount of processing. After high-precision CNC cutting, the shape of the blade is formed, and then the surface is hardened. Finally, the blade is manually refined under the microscope and then tested on the machine Die cutting. This die-cutting knife can be die-cut about 1 million times, and the blade can be sharpened after being blunt. One die-cutting knife can be trimmed three times in total, and the number of die-cutting times after each grinding is about 800,000 times. If used and maintained properly, the service life of the die-cutting knife, that is, the number of die-cutting times can total 3.5 million times.
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