Flexography is a printing process that uses a flexible embossed plate for printing on a variety of materials, including paper, plastic, metal foil and even cellophane. Flexoographic printing or flexographic printing is widely used for food packaging and printing solid colors or images in large areas. As with all mechanical presses, the flexographic machine can remain in use due to the wear and tear of parts and advances in technology. Because of the high cost (from $250,000 to $1,000,000), the new flexographic machine, many printing companies are looking for more cost-effective ways to upgrade their existing flexographic machines. This article tells you about the simple and cost-effective upgrade of the used Servo 3000 flexographic machine produced by Rotary Technologies.
Tension of the belt
In rotational printing, as in flexographic printing, the substrate (paper, etc.) stretches through the printing press. The force used is called belt tension. The tape is a roll of paper, cellophane, etc. on which the press press presses. Accurate tensions are important in flexographic printing, as poor control leads to blurred image and can lead to cuts and folds in the wrong places, which will spoil the work. When fully color printed, the colors are applied to four different printing stations. Incorrect tension of the canvas will result in the media entering the station in the wrong part of the printing cycle, which will lead to a blurred and unnecessary image. The more accurate the ability of the press to control the tension of the canvas, the better the final product. Because the Servo 3000 reads 10,000 pulses per second, the accuracy of printing on the first pass is extremely high.
Web recording refers to the ability to accurately control the position of the canvas, the basis in relation to flexible printed forms and other functions of flexographic printing. In the case of a servo system such as the Servo 3000, it re-records the tape on previously printed material. It then reads the registration labels to precisely control the next printing process. The same servo accuracy, which provides excellent results of the first pass, allows the Servo 3000 power press to provide accurate results in subsequent passages.
Servo 3000 flexographic flexographic machine update
The digital filing system is the Rotary Technologies Servo 3000 re-registration system, a portable, easy-to-install flexographic machine. This system has a special stimulant roller with a servo, which feeds the material to the flexographic machine. The rink, together with the support wheels, which act as a clamp, provide a positive grip and prevent sliding. Since seromechanism accepts and reacts to the coder’s signal from the press, it accurately follows the press, not the other way around.
Enter mode for network voltage
In Servo 3000 mode, the material is fed to the press. Thanks to the function of servo feedback, the material in the press is stimulated in proportion to the speed of the press. At lower speeds, the tension of the canvas is greater, and at higher speeds the tension of the canvas is less. The scale used by the Servo 3000 to adjust the speed and tension of the canvas has 250 micro-adjustments. Thus, with the Servo 3000, the flexograph machine can print in a full range of voltages, from the label material to the thin films. For the press operator it is an adjustment in tenths of 0.0 to 25.0. Because the parameters are digital, they are reproducible for different materials and do not depend on the temperature, time of operation, diameter of the unwinding roll or any other factor that usually affects the tension of the canvas on the flexographic machine.
The Servo 3000 allows the printing press operator to rewrite pre-printed media made on the same or other printing press. The print sensor reads the print registration labels on the tape. The servo moves the canvas to fix the printed tags in the register in front of the printing press. Thanks to this feature, the flexographic printing machine can be used to repeat prints to correct errors (instead of wasting the media) and to increase the color capacity by printing additional prints with additional colors. It also allows you to print multi-layered labels, first printing the top layer and then re-recording the canvas for printing and finishing subsequent layers.