| 摘要 |
<p>The normal cycle of the typical I. S. type of glassware forming machine is rendered more versatile by dividing it up into modes related to the thermodynamics of the dynamic glassware forming process. These modes are defined by boundaries which can be related to the usual machine functions, and this new systems approach permits a computer to control many of these machine functions within a particular "mode" while the boundaries of the mode itself are varied within predetermined limits. A pulse generator is used to trigger a counter means which develops counts for use by a computer for comparison with desired values to operate a solenoid controlled valve block. The further feature disclosed herein resides in the designation of certain action signals for operation of the mechanical means as boundaries between thermodynamic modes of the glassware forming cycle. These boundaries will follow preset "counts" which can be varied, within limits, to effect longer or shorter settle blow time, counter blow time, final blow time, or parison reheat time, etc.</p> |
