JP3926782B2 - 射出成形機の制御方法 - Google Patents
射出成形機の制御方法 Download PDFInfo
- Publication number
- JP3926782B2 JP3926782B2 JP2003333947A JP2003333947A JP3926782B2 JP 3926782 B2 JP3926782 B2 JP 3926782B2 JP 2003333947 A JP2003333947 A JP 2003333947A JP 2003333947 A JP2003333947 A JP 2003333947A JP 3926782 B2 JP3926782 B2 JP 3926782B2
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- JP
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- Prior art keywords
- pressure
- injection
- molding machine
- injection molding
- depressurization
- 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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- 238000000034 method Methods 0.000 title claims description 36
- 238000001746 injection moulding Methods 0.000 title claims description 18
- 238000002347 injection Methods 0.000 claims description 69
- 239000007924 injection Substances 0.000 claims description 69
- 230000008569 process Effects 0.000 claims description 30
- 239000000463 material Substances 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 12
- 230000009467 reduction Effects 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 239000011347 resin Substances 0.000 description 8
- 229920005989 resin Polymers 0.000 description 8
- 230000007423 decrease Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
Images
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Description
図1は本発明に係る射出成形機の正面図であり、射出成形機10は、型締め機構の固定盤11に立てた第1タイロッド12・・・(・・・は複数を示す。以下同じ)と、これらの第1タイロッド12・・・の上部に固定した上部固定盤13と、図示せぬ昇降手段で空中に保持された第1昇降盤14と、この第1昇降盤14に取付けられた射出シリンダ15および背圧制御シリンダ16A,16B(射出機構)と、これらの背圧制御シリンダ16A,16Bで吊った第2昇降盤17と、第1昇降盤14から下方へ延ばし且つ上部固定盤13を貫通させた第2タイロッド18・・・と、これらの第2タイロッド18・・・の下部に固定した加熱筒保持板19と、この加熱筒保持板19に取付けた加熱筒20と、この加熱筒20に回転自在に且つ往復移動可能に収納したスクリュ21と、このスクリュ21の上端から延ばしたスプライン軸22と、このスプライン軸22を回転するために上部固定盤13に取付けたスクリュ回転モータ23と、このスクリュ回転モータ23の動力をスプライン軸22に伝達するベルト24及びボールナット25と、からなる。
Claims (2)
- スクリュの回転により材料を加熱筒の前部に貯留する計量工程と、射出シリンダの後室に作動媒体を供給してスクリュを前進させることで計量後の材料を金型のキャビティへ射出する射出工程と、キャビティ内の材料の圧力を漸減させる圧抜き工程とをこの順に実施する射出成形機であって、
前記作動媒体は、エアなどの高圧縮性媒体を使用し、前記圧抜き工程では、前記後室からエアなどの高圧縮性媒体を、流量調整弁を介して排出することで圧抜きを行うことを特徴とする射出成形機の制御方法。 - 前記後室からエアなどの高圧縮性媒体を排出する前記流量調整弁は、少なくとも2つ備えられ、各流量調整弁の何れかを選択する切替弁を備え、この切替弁により経時的に切り替えることで、それぞれ異なる減圧速度で漸減させながら圧抜きを行うことを特徴とする請求項1記載の射出成形機の制御方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003333947A JP3926782B2 (ja) | 2003-09-25 | 2003-09-25 | 射出成形機の制御方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003333947A JP3926782B2 (ja) | 2003-09-25 | 2003-09-25 | 射出成形機の制御方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005096303A JP2005096303A (ja) | 2005-04-14 |
JP3926782B2 true JP3926782B2 (ja) | 2007-06-06 |
Family
ID=34461810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2003333947A Expired - Fee Related JP3926782B2 (ja) | 2003-09-25 | 2003-09-25 | 射出成形機の制御方法 |
Country Status (1)
Country | Link |
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JP (1) | JP3926782B2 (ja) |
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2003
- 2003-09-25 JP JP2003333947A patent/JP3926782B2/ja not_active Expired - Fee Related
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Publication number | Publication date |
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JP2005096303A (ja) | 2005-04-14 |
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