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In addition to printing, die-cutting technology is also very important. Die cutting is the process of cutting rubber into desired shapes using a knife or a laser. Most die-cutting processes are semi-cutting of self-adhesive materials, that is, only the surface and glue of the self-adhesive material are cut without cutting the backing paper. Most of the time, after the self-adhesive material is die-cut, the excess surface layer and glue are drained out, leaving the desired portion in the end.
Common thermal self-adhesives in daily life are composite materials made of paper, film or special materials, the back is coated with adhesive, and the bottom paper is coated with silicon protective paper. The roll-to-roll self-adhesive laser die-cutting machine is developed for continuous cutting, punching and marking of rolls such as self-adhesive and plastic films. Not limited by graphics, fast cutting speed and short processing cycle, it can successfully replace the traditional die cutting method.
Using a laser cutting proofer to generate a preset trajectory of the laser head for cutting has many advantages and can achieve custom shapes and sizes. Suitable for mass production. Laser cutting is a good choice for high cutting accuracy and speed requirements.
The roll-to-roll self-adhesive laser die-cutting machine is specially developed for the continuous cutting, punching and marking of self-adhesive, plastic film and other coiled materials. It does not need to open the mold and can successfully replace the traditional die-cutting method without graphic restrictions. , fast cutting speed, short processing cycle
The roll-to-roll self-adhesive laser die-cutting machine adopts high-speed galvanometer flight cutting, which can continuously and automatically die-cut the printed rolls of self-adhesive and other materials. The color code sensor is used to locate the cutting pattern, which is more efficient than the camera positioning method. The die-cutting precision is higher, and the optical principle of post-focusing makes the spot smaller and the cutting effect better.
The roll-to-roll self-adhesive laser die-cutting machine adopts a high-precision automatic deviation correction device, which makes the automatic feeding and receiving more accurate, so as to ensure the accuracy after die-cutting, the feeding speed is fast, and the cutting efficiency is ensured.
Compared with laser cutting, ordinary self-adhesive trademark die-cutting machine has the following problems:
Die cutting continuously
First of all, it is necessary to check whether the continuous position of die cutting is repeatable. If it is repeated regularly, then the problem must be related to the die cutting knife. In this case, if it is a circular die-cutting, the die-cutting pressure can be increased as a whole, which may solve the problem of continuous die-cutting and accelerate the wear of the die-cutting knife. If the problem of continuous die-cutting cannot be solved within the range of increasing the allowable pressure, then only a new die-cutting knife can be replaced. If it is a flat die cutting, the pressure can be adjusted locally.
If the constant die cutting problem does not recur regularly, then the problem may be caused by machine gear accuracy, running tension of the material, insufficient die cutting pressure. In this case, it is necessary to check the material running tension and adjust the die cutting pressure to solve.
