Blow molding machine and method for determining product defect

Patent metadata

Field	Value
Publication number	US-2024269914-A1
Application number	US-202218567603-A
Country	US
Kind code	A1
Filing date	Jun 2, 2022
Priority date	Jun 7, 2021
Publication date	Aug 15, 2024
Grant date	—

Abstract

Provided is a blow molding machine ( 1 ) including a sound collection device ( 31 ) that can detect sound; and one or more arithmetic logic devices ( 33 ). At least one of the one or more arithmetic logic devices ( 33 ) is configured to execute a product determination function for determining a presence or absence of a product defect, based on an electric signal associated with the sound detected by the sound collection device ( 31 ).

First claim

1 . A blow molding machine comprising:
a sound collection device configured to detect sound; and one or more arithmetic logic devices, wherein at least one of the one or more arithmetic logic devices is configured to execute a product determination function for determining a presence or absence of a product defect, based on an electric signal associated with the sound detected by the sound collection device.

2 . The blow molding machine according to claim 1 ,
wherein at least one of the one or more arithmetic logic devices determines that the product defect is present, in response to an intensity of a component, which is included in the electric signal, relating to sound at a predetermined frequency exceeding a predetermined threshold.

3 . The blow molding machine according to claim 2 ,
wherein the predetermined frequency is selected from 40 to 65 Hz or 5000 to 20000 Hz.

4 . The blow molding machine according to claim 1 , further comprising
a pressure sensor configured to detect pressure of a pressurized fluid to be supplied to expand a product, wherein at least one of the one or more arithmetic logic devices is further configured to execute an instrument determination function for determining a presence or absence of an instrument abnormality, based on an electric signal associated with the pressure detected by the pressure sensor.

5 . The blow molding machine according to claim 1 ,
wherein at least one of the one or more arithmetic logic devices is configured to notify a worker of the product defect, in response to determining that the product defect is present.

6 . A method for determining a product defect comprising:
collecting sound emitted from a blow molding machine; and determining a presence or absence of a product defect in the blow molding machine, based on the sound collected in the collecting.

Assignees

• Suntory Holdings Ltd

Inventors

• Asami Taro
• Watanabe Takeshi
• Watanabe Miyuki

Classifications

• G01N29/04

  Analysing solids (using acoustic emission techniques G01N29/14) · CPC title

• G01N29/42

  by frequency filtering {or by tuning to resonant frequency} · CPC title

• G01N29/4427

  with stored values, e.g. threshold values · CPC title

• G01N29/14

  using acoustic emission techniques {(echo of particles G01N29/046; measuring mechanical vibrations or acoustic waves in solids in general G01H1/00)} · CPC title

• B29C49/42382

  Stopping at least a part of the machine · CPC title