PLASTICIZED STATE DIAGNOSING METHOD AND APPARATUS FOR INJECTION MOLDING MACHINE

Abstract: a plurality of ae sensors 66are provided on a heating cylinder 2 at a plurality of different positions xr, xf in a forward-rearward direction fs so as to detect ae waves ae waves we. position data dx related to a position where each ae wave we is generated are obtained on the basis of arrival times tr, tf of the ae wave we obtained from the ae sensors 66for each combination of a predetermined sampling period tp and a predetermined set of the position data dx, the number of times ae wave signals sfe, etc. related to the generated ae wave we have exceeded a threshold value l set beforehand is obtained as attack number data da. the number of ae wave signal components sp having exceeded a threshold value set beforehand is obtained as event count data de. at least a generation pattern ps of sets of the attack number data da and sets of the event count data de which correspond to sets of the position data dx is graphically displayed.

Inventor(s): Hozumi YODA, Yuichi SAKURADA, Yoshinao FUKUDA

CPC Classification: B29C45/76 (Measuring, controlling or regulating {(measuring in general ; controlling or regulating in general )})

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