SYSTEM AND METHOD FOR MONITORING TEMPERATURE AND PRESSURE DURING A MOLDING PROCESS
First Claim
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1. An injection molding system, including:
- a multi-variable sensor comprising dissimilar metals formed into a micro-bead junction; and
a programmable device, with associated memory, connected to and receiving a signal from said sensor, said programmable device periodically receiving the signal and recording said signal to record changes in said signal, wherein said programmable device is capable of storing said signals as data.
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Abstract
Disclosed are systems and methods for the use of a micro-bead EMF junction in the sensing and control of an injection molding process, whereby the improved junction is able to reliably sense and indicate temperature and pressure changes in a molding process.
89 Citations
15 Claims
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1. An injection molding system, including:
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a multi-variable sensor comprising dissimilar metals formed into a micro-bead junction; and
a programmable device, with associated memory, connected to and receiving a signal from said sensor, said programmable device periodically receiving the signal and recording said signal to record changes in said signal, wherein said programmable device is capable of storing said signals as data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A sensing system for use with a molding system, including:
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a melt orifice, positioned such that melt material flows adjacent said orifice under normal injection molding parameters;
an unsheathed sensor suitable for insertion into said orifice, said sensor further comprising a junction of dissimilar metals forming an EMF junction in direct contact with a molding material; and
means for retaining the sensor in the orifice. - View Dependent Claims (14)
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- 13. The sensing system of claim B1, wherein the sensor is in contact with a melt material flowing in the molding system.
Specification