Cugher technology for an enhanced productivity

Optionals

Cugher silk screen printing machines offer various options,
able to satisfy even the most ambitions production, quality
control and line automation requirements.

Optionals

Broken screen detection unit

This special unit controls the integrity of the silk screen. It detects in automatic the presence of ink spots on the printing area. The broken screen detection unit is installed immediately after the printing machine.
The device uses high resolution video camera and rolls with contrast illumination to detect ink marks. In case of ink leakage, the lower surface of the glass will be marked and consecutively the rolls of the inspection system. The camera spots the mark and sends alarm.
The advantage of this system, compared to traditional systems is that its ability to detect the leakage is not limited by the position and the dimension of the screen breakage.

Logo Print System

The logo print system can be either mobile (attachable to the printing machine) or stand-alone solution with a conveyor.
In the first case, the logo-print head, will be installed above the printing bridge, and connected to a dedicated socket. It will be managed by the PLC of the printing machine. The installation and removal is very easy and takes few minutes.
The adjustment of the logo print position and the screen frame is manual. The pressure and the speed can be set through the recipe menu of the machine.
The movement of the squeegee and flood bar is by pneumatic cylinders.
In the second case, the system consists of a conveyor with pin centering system equipped with sensors for correct glass positioning and the logo print head.
The system is commanded by the operator panel of the printing machine.

Automatic screen alignment system

This system is engineered to facilitate and speed up the work of the operator during format changeover. The time can be decreased up to 70%.
The automatic screen alignment is performed with two mobile cameras situated under the printing table, screen motorized tuning and dedicated software. The screen register is performed utilizing reference markers on a master glass which are brought into collimation with the respective markers on the screen. All set up data is stored in the PLC of the printer
The operator tasks are reduced to the insertion of the screen in a proximity position to the cameras, start and supervision of the operation.
Once the correct position is reached the screen will be blocked to prevent further movement.

Automatic Asymmetrical Glasses Centring System

With Cugher Automatic Asymmetrical Glass Centering System it is possible to register glasses with complex shapes, size ranging from 100×200 mm to 1300×2500 mm.
The register system is composed of six pins. Depending on the special request, all pins can be motorized or just three of them, while the other three pneumatically driven.
The set up parameters for each glass model are recorded in the recipe system of the printer.
The pins closing sequence can be defined through the operator panel.

Vertical visual inspection

The vertical inspection station is used to check the quality and the precision of the printing. It does not require stopping the process, since it is positioned offline.
The base of the inspection system is a roller conveyor with tilting arm-system. The tilting arms are equipped with automated reference pins. They lift the glass in vertical position at 70° angle. The upper part of the structure consists of a mobile screen with neon or LED lamps. It lowers behind the glass and lights up to enable the operator to carry out the inspection.

Edge to Edge system

The possibility to print the glass up to the edge has become a must in the automotive industry. To be able to do that, the design on the screen is made slightly bigger than the original. After multiple prints, the ink accumulates on the contour of the design. If not removed, it may drip on the printing table and stain the glass and the equipment.
The Edge to Edge systems are used to draw through suction the excessive ink from the screen.
Cugher provides two types of edge to edge systems, Blade E2E and 3 axis controlled E2E. The choice of technology is subject to the process adopted by each glass manufacturer.

Edge to Edge Suction Blade system
This system removes the ink from the whole surface of the screen by a suction blade. For different screen formats, blades with corresponding width should be used.
The system consists of a mechanical device, fixed behind the printing bridge of the machine. It supports a tubular part that houses the suction blade. The E2E system has a motorized motion in x direction and pneumatic in y direction. To perform the excess ink removal, the suction blade sweeps the whole area of the screen. It can be easily removed for cleaning and maintenance operations.
The activation of the Edge to Edge System is controlled by the Recipe System of the printing machine.
The edge to edge cycle adds from 4 to 6 seconds to the printing cycle.

3 axis controlled Edge to Edge system
The 3 axes controlled edge to edge system is currently the most advanced solution for edge to edge printing. It runs following the perimeter of the glass and removes the excess ink only in the areas where it is necessary. It is faster, more economy efficient and does not wear off the screen compared to traditional systems.

The system consists of mechanical structure with independent control. A suction device “nozzle” is fixed on it. It is free to move along x, y, z axis. The E2E system is equipped with PC and SW for the elaboration of artworks files. The files can be in DXF format, loaded directly from the CNC cutting machine or created by the operator
The activation of the Edge to Edge System is controlled by the Recipe System of the printing machine.
The edge to edge cycle adds from 2 to 4 seconds to the printing cycle.

Double lites edition

The double lites edition machine is designed to satisfy the demanding requirements of the automotive sector. High process flexibility, reduced cycle time and higher yield with full capacity utilization are achieved.
Machines equipped with double lites centering system are able to print two small glasses contemporary or one big. The glasses can be either symmetric or asymmetric. The centering of the glasses is performed by two sets of pins, managed by 16 brushless motors to guarantee micrometric precision of centering.
The machine operates with a recipe system, where the parameters for each glass model are stored. Once a recorded recipe is selected, the machine performs the set up in automatic.
This solution is suitable for capital intensive processes.

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