JP4671848B2 - ガラス板の折割切断不良の検出方法 - Google Patents
ガラス板の折割切断不良の検出方法 Download PDFInfo
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- JP4671848B2 JP4671848B2 JP2005343100A JP2005343100A JP4671848B2 JP 4671848 B2 JP4671848 B2 JP 4671848B2 JP 2005343100 A JP2005343100 A JP 2005343100A JP 2005343100 A JP2005343100 A JP 2005343100A JP 4671848 B2 JP4671848 B2 JP 4671848B2
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- Prior art keywords
- glass plate
- polishing
- value
- current value
- polished
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- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Description
2 折割切断異常がある時の駆動モーターに流れる電流
3 ガラス板の有無波形
4 ガラス板
5 研磨ホイール
6 駆動モーター
8 判定回路
9 記憶装置
10 センサー
11 未研磨時のピーク電流値a
12 前回研磨時の平均電流値b
13 未研磨検知の設定値
Claims (2)
- ガラス板の端縁部の折割切断不良の検出方法において、搬送されるガラス板の端縁部を研磨ホイールで研磨する際、研磨未作動時の一定時間における研磨ホイールの駆動モーターに流れる電流のピーク値aに、該ピーク値aと前回研磨したガラス板の研磨時の平均電流値bとの差の1/3〜2/3の範囲内の所望の値を加算した電流値を設定値とし、研磨動作中に該電流値が一定時間設定値以下となった時、ガラス板の折割切断不良に起因する未研磨欠陥であると判定することを特徴とするガラス板の折割切断不良の検出方法。
- 前記研磨ホイールの駆動モーターの電流値が研磨動作中に設定値以下となる一定時間が、ノイズ除去に有効な0.1秒以上であることを特徴とする請求項1に記載のガラス板の折割切断不良の検出方法。
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JP2005343100A JP4671848B2 (ja) | 2005-11-29 | 2005-11-29 | ガラス板の折割切断不良の検出方法 |
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JP2005343100A JP4671848B2 (ja) | 2005-11-29 | 2005-11-29 | ガラス板の折割切断不良の検出方法 |
Publications (2)
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JP2007144566A JP2007144566A (ja) | 2007-06-14 |
JP4671848B2 true JP4671848B2 (ja) | 2011-04-20 |
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JP2005343100A Expired - Fee Related JP4671848B2 (ja) | 2005-11-29 | 2005-11-29 | ガラス板の折割切断不良の検出方法 |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20110021742A (ko) * | 2008-06-17 | 2011-03-04 | 니폰 덴키 가라스 가부시키가이샤 | 디스플레이용 유리 기판의 휘도 불균일 평가 방법, 디스플레이용 유리 기판의 제조 방법, 및 휘도 불균일이 발생되기 어려운 디스플레이용 유리 기판 |
JP2011110648A (ja) * | 2009-11-26 | 2011-06-09 | Asahi Glass Co Ltd | ガラス基板の加工方法及びその装置 |
JP6978724B2 (ja) * | 2017-09-12 | 2021-12-08 | 日本電気硝子株式会社 | 板ガラスの製造方法 |
CN114227428A (zh) * | 2021-11-09 | 2022-03-25 | 盐城良工建筑模板有限公司 | 一种建筑模板边角打磨装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001009675A (ja) * | 1999-06-29 | 2001-01-16 | Disco Abrasive Syst Ltd | 切削ユニットの異常検出方法及び切削装置 |
JP2001272353A (ja) * | 2000-03-24 | 2001-10-05 | Kubota Corp | 粉粒体検査装置 |
JP2003117815A (ja) * | 2001-10-16 | 2003-04-23 | Central Glass Co Ltd | ガラス板周縁部の研磨異常の検出方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06100555B2 (ja) * | 1990-12-19 | 1994-12-12 | 東洋ガラス株式会社 | 透明物体の欠陥検査方法とその装置 |
JPH0531668A (ja) * | 1991-07-23 | 1993-02-09 | Yamazaki Mazak Corp | 電解インプロセスドレツシング研削方法 |
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- 2005-11-29 JP JP2005343100A patent/JP4671848B2/ja not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001009675A (ja) * | 1999-06-29 | 2001-01-16 | Disco Abrasive Syst Ltd | 切削ユニットの異常検出方法及び切削装置 |
JP2001272353A (ja) * | 2000-03-24 | 2001-10-05 | Kubota Corp | 粉粒体検査装置 |
JP2003117815A (ja) * | 2001-10-16 | 2003-04-23 | Central Glass Co Ltd | ガラス板周縁部の研磨異常の検出方法 |
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JP2007144566A (ja) | 2007-06-14 |
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