GreCon UPU 6000
Enabling early inline blow detection with ultrasonic technology.
The ultrasonic measuring system GreCon UPU 6000 detects inhomogeneities in panel-shaped materials, such as wood based panels, inline. Size and location of defective areas are recorded and visualised. Thus, defective panels can be identified and sorted out in time.
The measuring method supplies reliable results for both thick panels of up to 55 mm thickness and light panels of a density of < 550 kg/m³.
Depending on the required quality, different defect types, such as blows, that allow a graded quality sorting can be configured.
YOUR BENEFITS
DESIGN OF THE SYSTEM
The inspection channels required for measurement are mounted on a frame. The design of the system is individually adapted to the material to be measured and the local conditions. The frame can be equipped with a maximum of 128 inspection channels.
The closed frame concept protects all components, such as cable and air channels, transmitter electronics or compressed air lines, against surrounding environment. A hinged mechanism protects the channels against damage from big blisters.
MEASURING METHOD
Ceramic transmitters are installed below the material flow. The ultrasonic signal generated by the transmitters penetrates the material and is received and evaluated by the receivers that are installed above the material flow. An attenuation of the received ultrasonic energy is registered as a deviation from the nominal value and indicates a possible weak point.
In order to protect the sound quality against disturbing influences, such as reflections, the wanted signal is protected by protection curtains.
In order to obtain good measuring results, the measuring conditions should be the same for all channels. The operator can check the function of the inspection channels and re-adjust, if necessary, by an electronic adjustment that can be conducted in panel gaps during the production
PROCESS OPTIMIZATION
ith this option, additional parameters, by means of which the operator can counteract the production of blisters and thus reduce the reject rate, are visualised. Instead of 5 colours that are standard, 250 colours are available for the representation of inhomogeneities of the measured panels.
For the improved resolution of measured values, a homogeneous calibration sample is automatically and mechanically placed between transmitter and receiver to be able to conduct the precise adjustment that is required for the resolution of 250 colours.
Furthermore, the system is equipped with an automatic dust accumulation control that is activated at predetermined intervals in the gap between two panels and does not disturb the measuring process. If the values of an inspection channel strongly deviate from the reference value, a warning signal is sent to the operator. If the degree of dust accumulation exceeds the limiting value, the next maintenance interval is indicated to the operator.
Extended working range
An extended range of transmitter and receiver components allows the measurement of special products, such as wood based panels of a thickness of up to 55 mm and a density of 550 kg/m³.
SOFTWARE FUNCTIONS AND VISUALISATION
UPU 6000 TECHNICAL DATA
UPU 6000 FS TECHNICAL DATA
