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Digital glass forming machine

  • US 4,529,429 A
  • Filed: 05/06/1983
  • Issued: 07/16/1985
  • Est. Priority Date: 05/06/1983
  • Status: Expired due to Fees
First Claim
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1. In a glassware forming machine having a plurality of components which cyclically move in synchronized concert, the improvement of an apparatus for precise control over the motion envelope of at least one of said components, comprising:

  • a digitally responsive motor module for driving said component;

    a first storage means for storing a first data table corresponding to a first desired motion envelope of said component, from a first position to a second position, said data table including an identified location for each unit movement of said digitally responsive motor module, said each identified location of said data table having data indicative of the relative time between a unit movement of said digitally responsive motor module and data indicative of the direction of said movement;

    a second storage means for storing a second data table corresponding to a second desired motion envelope of said component from said second position to said first position;

    means for controlling said digitally responsive motor module in accordance with said stored data;

    means responsive to the speed of said glass forming machine for altering the real time significance of said data indicative of the relative time between a unit movement of said digitally responsive motor module in proportion to a change in the speed of the glass forming machine; and

    ,emergency stop means to test the speed of a respective component upon execution of an emergency stop and uniformly de-accelerate said respective component to the extend said components speed is in excess of a predetermined speed.

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