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FAGUS-GRECON Greten GmbH & Co. KGHannoversche Straße 58
31061 Alfeld
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GreCon GS 6000

Inline weight measurement with load cells

The platform weighing scale measures the weights of solid materials, such as wood based panels. Measurement can be conducted both at standstill and during running production. The weight is measured by specially developed radial supports with integrated weighing cells. Depending on the measuring task and the mechanical construction of the weighing table, weighing cells with an optimum measuring range are used.

Benefits at a glance

  • Measurement while production is running or standing still
  • Can be combined with a thickness gauge to evaluate the raw density
  • Elimination of incorrect panel weights, continuous monitoring of the material consumption
  • Improved quality control

Measuring method

The preferred use of the weighing system during production is to use a belt conveyor that eliminates vibrations with mechanical dampers, suspension arms and electronic filters that are integrated with the evaluation system. The length of the measured material, transport speed, mechanical dynamics, and electronic running times determine the table length and the weighing time of the scale during production.
The electrical signal which is generated in the weighing cells is pre-processed by a carrier frequency amplifier and then transferred to a control console. Representation and easy operation of the system are done by a touch screen. The weighing data can be sent to a network printer or the data transferred to a process control system. With an optional linkage with a GreCon thickness gauge, the average raw density and the weight distribution within the panels can also be calculated and used to optimise the process.

SOFTWARE FUNCTIONS AND VISUALISATION

  • The visualisation is the core of the software. The recorded measuring data is collected, registered and graphically processed. The easy menu structure which is adapted to all measuring systems makes an intuitive and user-friendly operation possible.

    The ergonomically designed software based on the Windows operating system allows an easy handling of the system by the operator. The recorded measured values are processed and displayed in a clearly structured way.

    Thanks to the visualisation software in modular design, the system can be adapted to your requirements so that the operation of the plant with different applications is possible. Furthermore the surface of the visualisation software can be compiled according to your needs.
     

  • The measuring data is issued graphically and numerically:

    • Alert if the tolerances are not observed 
    • Display of the position in which the tolerances are not observed 
    • Freely configurable display of numerical parameters as information on the production type or statistics.
       
  • The touch display can be used directly at the production line to display the current measuring results and to check the scale. Furthermore it is possible to enter the default values via the touch display in stand-alone mode.

    When using a GreCon thickness gauge, the weight values are transmitted directly to the thickness gauge and made available in the control room. The raw density of the panel is calculated with the relevant measured thickness values.

    In case of a scale which is spatially separated from the GreCon thickness gauge, the measured thickness values and the scale values are exactly assigned by an optional panel tracking. Here, it is not important whether the scale is mounted upstream or downstream of the thickness gauge. Panels fed out in between are identified.

  • The system can be adapted optimally to the different requirements via recipes. The structure of the recipe management is very easy. The input of the panel-specific data enables the operator to start the measurement with only few mouse clicks. The start of a measurement and the necessary selection of a recipe make the integration of the measurement system into the process chain possible.

    All default values of a production type are saved in the recipe management. Besides the production parameters, as e.g. 

    • panel thickness
    • panel width
    • panel length
    • raw density
    • tolerances

    also all measuring-specific parameters are filed under the production type. When the production type is loaded again, all necessary parameters are available again.
     

    • Any panel data is stored in an SQL data base together with the recipe parameters and the measuring results.
    • Display of the position and the scope of the violated tolerances of historical panels.
    • Easy search function via date and time.
    • Export of panel data.
       
  • Individual time-relevant reports as e.g. the shift and month reports can be generated from the data base.

    The graphic presently shown on the screen can be printed out by pressing a button. Furthermore it is possible to print out a numerical report in case of a change of the production types or the shift.

    It is possible to generate different reports automatically and store or print them, as for example:

    • shift report
    • type report
    • graphic report

    Furthermore it is possible to print out a screen shot of the history for statistical purposes. The data can also be exported from the history management in the standard file format XLS.
     

Applications

Wood based panel industry

  • After the press
  • Star cooler
  • Sanding line
  • Panel store (stack scale)

Technical Data

  • Supply voltage 230 V ± 10 % / 110 V ± 10 %
    Frequency 50 Hz / 60 Hz
    Mains type Phase/neutral conductor/protective conductor
    Power consumption 120 VA
  • Places of installation (other places of installation on request) Panel scale, stack scale
    Ambient temperature 0 to 50 °C
    Relative humidity non-condensing
    Protection class IP65
  • Type of material Panel-type materials
    Transport speed Depending on the installation situation of the weighing cells, retention time for measurement of approx. 1 s on the weighing table
  • Number 4 (standard), 6 or 8 depending on the type of use
    Measuring process By contact
    Measuring range 500, 1000 or 2000 kg per weighing cell
    Repeat accuracy (in case of constant environmental conditions) Measuring accuracy: ± 0.1 % from the end value of the measuring range of the weighing cell
    Resolution (diameter of the measured spot) 0.01 kg
    • Current 4…20 mA
    • Voltage 0…10 V
    • Connection and display via GreCon DMR 6000 or DML 6000

After-Sales-Service

The GreCon measuring systems are designed for a use in an industrial environment. The GreCon after-sales-service is available to you for any questions or the elimination of problems so that the systems provide maximum benefit and offer high availability even over the long term.

  • Our experts ensure an optimal and reliable function of your GreCon measuring systems in agreed intervals.

  • The GreCon measuring systems are equipped with the GreCon Remote Support SATELLITE to support the operators. This system makes a safe, easy and quick remote support possible in case of any possible failure, to control the system or to answer questions.

  • Qualified specialists with comprehensive practical experience are available to you for any questions and support in case of problem - 365 days the year.

  • As internationally acting company, GreCon offers a worldwide network of subsidiaries and sales and service partners with internal qualified service staff. Thus, a competent partner is available to you in case of need within very short time and in short distance.

You will find further information on the GreCon after-sales-service pages.

Do you have questions?

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