Aufen expands patents and new technologies for solventless laminators

With the continuous improvement of the packaging requirements of the society, packaging materials and their production are increasingly diversified, and the post-press packaging equipment that is adapted to it is constantly being updated.

The famous Italian flexo and laminating machine manufacturer OFEN recently launched the world's first scalable solvent-free laminating machine with a dual touch screen operating system, a patented three-roll compound mechanism, and a shaftless transmission. Brushless motor (conveniently set width) and sleeve technology (for easy replacement of metering rollers), precise coating amount, uniform and rapid compounding (up to 350m/min), and can be expanded into a multi-function according to product needs (COMBI ) Or three-layer compound machine (can be used for composite cardboard, aluminum foil and PE, production of milk packages, etc.). This article mainly describes the aircraft's patented design and new technologies.

Dual touch screen operating system

A typical laminating machine generally has only one touch screen operation, so that it is inconvenient to switch between coating and laminating processes when setting up. In order to solve this problem, the Aufen company uses a dual touch screen system, that is, there is a touch screen in the coating and compound station, no need to change the settings, and because it is operating in the corresponding station, so the province Time.

Three-roll composite mechanism

The three-roll compounding mechanism is a patented technology of the company. The general compounding mechanism only has two upper and lower composite rollers, so when high-speed composite (such as 300m/min), the fluidity of the adhesive (adhesive) will cause the runout of the composite roller, affecting the composite effect and the quality of the finished product. The company's patent is to add a third support steel roll to the bottom of the normal two-roll structure, which eliminates the runout of the composite roll and improves the compounding speed, compounding effect and quality of the finished product.

Shaftless transmission

At present, the non-shaft drive technology has been widely used in high-grade offset printing presses and flexographic printing presses, but it is rarely seen on composite machines. The company has taken the lead in adopting the shaftless transmission technology on this scalable solventless laminating machine. The non-solvent coating unit's feeding roller, metering roller and coating roller are all driven by independent motors, and their rotation speeds are respectively adjustable. , In this way, the best coating amount can be obtained by adjusting the speed of the live, so as to achieve the most satisfactory composite effect.

Brushless motor

The typical compound machine uses a proximity switch to adjust the width, and the operator must go to the machine to complete this work, which is laborious and time-consuming. Here, a brushless motor is used to adjust the width, and the operator only needs to set it on the touch screen.

Sleeve technology

Sleeve technology is now widely used on wide-format flexographic printing presses, but it is rarely seen on copiers. The metering roll of the expandable solventless laminating machine uses this technology, so that it is not necessary to remove the entire unit at the time of replacement. Instead, simply remove (and replace) the sleeve on the metering roll.

Looking at the above several technologies, people attentively can find that some technologies such as shaftless transmission and sleeve technology are no longer strange to us because many high-end offset and flexo presses have adopted these technologies widely. However, the use of these technologies has only just begun for composite machines. It is believed that this advanced and solvent-free expandable solvent compounding machine of the company will bring new opportunities for our packaging and printing industry.

Reprinted from: Good Packaging Network