JP4672043B2 - 射出成形機の油圧駆動装置 - Google Patents
射出成形機の油圧駆動装置 Download PDFInfo
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- JP4672043B2 JP4672043B2 JP2008108798A JP2008108798A JP4672043B2 JP 4672043 B2 JP4672043 B2 JP 4672043B2 JP 2008108798 A JP2008108798 A JP 2008108798A JP 2008108798 A JP2008108798 A JP 2008108798A JP 4672043 B2 JP4672043 B2 JP 4672043B2
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- Prior art keywords
- pressure
- molding machine
- hydraulic
- command value
- hydraulic drive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000001746 injection moulding Methods 0.000 title claims description 19
- 239000003921 oil Substances 0.000 claims description 70
- 238000002347 injection Methods 0.000 claims description 41
- 239000007924 injection Substances 0.000 claims description 41
- 238000001514 detection method Methods 0.000 claims description 38
- 238000000465 moulding Methods 0.000 claims description 35
- 239000010720 hydraulic oil Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 230000002829 reductive effect Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000005284 excitation Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 230000004043 responsiveness Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
- B29C45/50—Axially movable screw
- B29C45/5008—Drive means therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/67—Mould opening, closing or clamping devices hydraulic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/82—Hydraulic or pneumatic circuits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76003—Measured parameter
- B29C2945/76006—Pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76177—Location of measurement
- B29C2945/76297—Fluids
- B29C2945/76307—Fluids hydraulic fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76344—Phase or stage of measurement
- B29C2945/76381—Injection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76344—Phase or stage of measurement
- B29C2945/76391—Mould clamping, compression of the cavity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76498—Pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76655—Location of control
- B29C2945/76775—Fluids
- B29C2945/76785—Fluids hydraulic fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76929—Controlling method
- B29C2945/76936—The operating conditions are corrected in the next phase or cycle
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
Claims (7)
- 油圧を検出する圧力センサと、この圧力センサから得る圧力検出値と成形機コントローラから付与される圧力指令値に基づいて前記油圧に対するフィードバック制御を行うフィードバック制御回路を付設した圧力制御弁を備える射出成形機の油圧駆動装置において、前記成形機コントローラに、前記圧力制御弁から付与される圧力検出値と前記成形機コントローラの内部から得る圧力指令値(正規指令値)に基づいて前記圧力制御弁に付与する圧力指令値(出力指令値)を補正する第二のフィードバック制御回路を設けたことを特徴とする射出成形機の油圧駆動装置。
- 前記油圧は、射出装置におけるスクリュの後退時に射出シリンダの後油室に生じる背圧であることを特徴とする請求項1記載の射出成形機の油圧駆動装置。
- 前記圧力検出値は、前記圧力センサ自身又は前記圧力センサの近傍に配した温度センサにより検出した油温により補正した圧力検出値であることを特徴とする請求項1記載の射出成形機の油圧駆動装置。
- 前記圧力制御弁は、作動油の流入ポート及び流出ポートから遮断された別途の接続ポートを備え、この接続ポートに連通する油路に前記圧力センサを臨ませるとともに、前記接続ポートと前記射出シリンダの後油室を接続してなることを特徴とする請求項2記載の射出成形機の油圧駆動装置。
- 前記第二のフィードバック制御回路は、前記圧力検出値と前記正規指令値の偏差を求め、この偏差を前記正規指令値に加算して前記出力指令値を得る補正機能を備えることを特徴とする請求項1記載の射出成形機の油圧駆動装置。
- 駆動モータの回転数を可変制御して、少なくとも吐出流量を制御可能な油圧ポンプ部を備えることを特徴とする請求項1〜5のいずれかに記載の射出成形機の油圧駆動装置。
- スクリュを回転させるオイルモータ及びこのオイルモータの回転数を検出するロータリエンコーダを有する射出装置を備えるとともに、前記成形機コントローラは、前記ロータリエンコーダにより検出する回転数(回転数検出値)と予め設定した回転数設定値に基づいて前記駆動モータの回転数を可変制御する第三のフィードバック制御回路を備えることを特徴とする請求項6記載の射出成形機の油圧駆動装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008108798A JP4672043B2 (ja) | 2008-04-18 | 2008-04-18 | 射出成形機の油圧駆動装置 |
CN200910134291.2A CN101559643B (zh) | 2008-04-18 | 2009-04-16 | 注塑机用的液压驱动设备 |
US12/424,950 US7866970B2 (en) | 2008-04-18 | 2009-04-16 | Hydraulic drive device for injection molding machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008108798A JP4672043B2 (ja) | 2008-04-18 | 2008-04-18 | 射出成形機の油圧駆動装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009255439A JP2009255439A (ja) | 2009-11-05 |
JP4672043B2 true JP4672043B2 (ja) | 2011-04-20 |
Family
ID=41201325
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008108798A Active JP4672043B2 (ja) | 2008-04-18 | 2008-04-18 | 射出成形機の油圧駆動装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7866970B2 (ja) |
JP (1) | JP4672043B2 (ja) |
CN (1) | CN101559643B (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4672044B2 (ja) * | 2008-04-18 | 2011-04-20 | 日精樹脂工業株式会社 | 射出成形機の圧力制御装置 |
JP4672045B2 (ja) * | 2008-04-18 | 2011-04-20 | 日精樹脂工業株式会社 | 射出成形機の油圧駆動装置 |
JP5645822B2 (ja) * | 2010-06-25 | 2014-12-24 | 日精樹脂工業株式会社 | 射出成形機の成形方法 |
KR101428194B1 (ko) * | 2012-10-04 | 2014-08-07 | 주식회사 포스코 | 연주기 세그먼트의 인발력을 균일하게 제어하기 위한 장치 및 방법 |
GB2529909B (en) | 2014-09-30 | 2016-11-23 | Artemis Intelligent Power Ltd | Industrial system with synthetically commutated variable displacement fluid working machine |
JP7220962B2 (ja) * | 2018-07-12 | 2023-02-13 | イーグル工業株式会社 | 容量制御弁 |
EP4272924A3 (en) | 2019-10-04 | 2024-01-24 | Husky Injection Molding Systems Luxembourg IP Development S.à.r.l | Stabilized adaptive hydraulic system pressure in an injection molding system |
CN114311575B (zh) * | 2021-12-30 | 2024-03-29 | 阿托斯(上海)液压有限公司 | 一种基于双闭环pid调节的注塑机背压控制装置及方法 |
CN114851498B (zh) * | 2022-04-01 | 2024-06-14 | 常熟拓斯达智能装备有限公司 | 注塑稳压油路***和注塑机 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0374338U (ja) * | 1989-11-24 | 1991-07-25 | ||
JP2000005857A (ja) * | 1998-06-22 | 2000-01-11 | Toyota Autom Loom Works Ltd | 加圧鋳造機 |
JP2002372474A (ja) * | 2001-04-13 | 2002-12-26 | Nippon Seiki Co Ltd | 半導体センサ装置 |
JP2003344176A (ja) * | 2002-05-27 | 2003-12-03 | Nippon Seiki Co Ltd | 半導体センサ装置及びその調整方法 |
JP2006088463A (ja) * | 2004-09-22 | 2006-04-06 | Nissei Plastics Ind Co | 電気・油圧式射出装置の制御方法 |
JP2006327127A (ja) * | 2005-05-30 | 2006-12-07 | Nissei Plastics Ind Co | 射出成形機の計量方法 |
JP2009255441A (ja) * | 2008-04-18 | 2009-11-05 | Nissei Plastics Ind Co | 射出成形機の油圧駆動装置 |
JP2009255440A (ja) * | 2008-04-18 | 2009-11-05 | Nissei Plastics Ind Co | 射出成形機の圧力制御装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6217401A (ja) * | 1985-07-16 | 1987-01-26 | Mitsubishi Heavy Ind Ltd | 油圧制御装置 |
JP2665815B2 (ja) | 1990-03-19 | 1997-10-22 | 株式会社名機製作所 | 射出成形機 |
JP2906318B2 (ja) | 1993-10-12 | 1999-06-21 | 油研工業株式会社 | 比例電磁制御弁装置 |
JP3370412B2 (ja) * | 1993-12-29 | 2003-01-27 | 株式会社神戸製鋼所 | 発泡射出成形機及びその運転方法 |
JP2736753B2 (ja) * | 1994-11-28 | 1998-04-02 | 日精樹脂工業株式会社 | 射出成形機の駆動制御方法及び装置 |
JP3319990B2 (ja) * | 1997-08-29 | 2002-09-03 | 三菱電機株式会社 | 圧力センサ装置 |
JP4324148B2 (ja) * | 2005-09-08 | 2009-09-02 | 日精樹脂工業株式会社 | 射出成形機及びその制御方法 |
-
2008
- 2008-04-18 JP JP2008108798A patent/JP4672043B2/ja active Active
-
2009
- 2009-04-16 US US12/424,950 patent/US7866970B2/en active Active
- 2009-04-16 CN CN200910134291.2A patent/CN101559643B/zh active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0374338U (ja) * | 1989-11-24 | 1991-07-25 | ||
JP2000005857A (ja) * | 1998-06-22 | 2000-01-11 | Toyota Autom Loom Works Ltd | 加圧鋳造機 |
JP2002372474A (ja) * | 2001-04-13 | 2002-12-26 | Nippon Seiki Co Ltd | 半導体センサ装置 |
JP2003344176A (ja) * | 2002-05-27 | 2003-12-03 | Nippon Seiki Co Ltd | 半導体センサ装置及びその調整方法 |
JP2006088463A (ja) * | 2004-09-22 | 2006-04-06 | Nissei Plastics Ind Co | 電気・油圧式射出装置の制御方法 |
JP2006327127A (ja) * | 2005-05-30 | 2006-12-07 | Nissei Plastics Ind Co | 射出成形機の計量方法 |
JP2009255441A (ja) * | 2008-04-18 | 2009-11-05 | Nissei Plastics Ind Co | 射出成形機の油圧駆動装置 |
JP2009255440A (ja) * | 2008-04-18 | 2009-11-05 | Nissei Plastics Ind Co | 射出成形機の圧力制御装置 |
Also Published As
Publication number | Publication date |
---|---|
US20090263530A1 (en) | 2009-10-22 |
CN101559643B (zh) | 2013-09-18 |
CN101559643A (zh) | 2009-10-21 |
JP2009255439A (ja) | 2009-11-05 |
US7866970B2 (en) | 2011-01-11 |
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