Browse Prior Art Database

Manufacturing Tool Utilization Monitor

IP.com Disclosure Number: IPCOM000044808D
Original Publication Date: 1984-Sep-01
Included in the Prior Art Database: 2005-Feb-06
Document File: 2 page(s) / 13K

Publishing Venue

IBM

Related People

Davie, D: AUTHOR

Abstract

Production tools used on modern manufacturing lines need a means of monitoring tool efficiency, actual throughput, and elapsed total time when "up" or "down". This article describes a portable instrument that can be attached to the manufacturing tool to serve that purpose.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 53% of the total text.

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Manufacturing Tool Utilization Monitor

Production tools used on modern manufacturing lines need a means of monitoring tool efficiency, actual throughput, and elapsed total time when "up" or "down". This article describes a portable instrument that can be attached to the manufacturing tool to serve that purpose.

Tool efficiency is defined as the total time the tool is turning out product divided by the total time the machine is trying to make a product, but has stoppages for various reasons. Actual throughput is the number of pieces per hour or day. Elapsed time is the total time during a shift or day that the tool is in the "run" mode or "wait" mode.

The monitor has five modes, or options, of display when internal switches are set for the desired mode.

In mode 1, the upper counter displays pieces from a photocell scanner. The lower counter displays total time (in seconds) from the "run" mode picking relay #1. This combination is tool throughput.

Mode #2 displays tool efficiency. The upper counter displays total time in "run" mode and the lower counter displays total time in "run plus halt" mode. Dividing the upper counter by the lower counter is tool efficiency in percent.

Mode #3 totals two separate counts of tool malfunctions or stoppages. The upper counter adds up the number of times per day that a tool halts for one reason; the lower counter totals the number of times the manufacturing tool halts for some other reason.

Mode #4 will provide the total number of stoppages of malfunction #1 and the total elapsed time of the total number of malfunctions. This provides a data base to ensure that improvements to the tool design are indeed improvements.

Mode #5 is a combination of mode #3 with total...