JP6570582B2 - 発泡成形用の射出成形機 - Google Patents
発泡成形用の射出成形機 Download PDFInfo
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- JP6570582B2 JP6570582B2 JP2017141680A JP2017141680A JP6570582B2 JP 6570582 B2 JP6570582 B2 JP 6570582B2 JP 2017141680 A JP2017141680 A JP 2017141680A JP 2017141680 A JP2017141680 A JP 2017141680A JP 6570582 B2 JP6570582 B2 JP 6570582B2
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- 238000001746 injection moulding Methods 0.000 title claims description 59
- 238000010097 foam moulding Methods 0.000 title claims description 13
- 239000011347 resin Substances 0.000 claims description 146
- 229920005989 resin Polymers 0.000 claims description 146
- 239000011261 inert gas Substances 0.000 claims description 90
- 238000010438 heat treatment Methods 0.000 claims description 47
- 235000003642 hunger Nutrition 0.000 claims description 47
- 230000037351 starvation Effects 0.000 claims description 45
- 238000002347 injection Methods 0.000 claims description 39
- 239000007924 injection Substances 0.000 claims description 39
- 230000006835 compression Effects 0.000 claims description 29
- 238000007906 compression Methods 0.000 claims description 29
- 239000007789 gas Substances 0.000 claims description 18
- 238000004891 communication Methods 0.000 claims description 16
- 230000010006 flight Effects 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 13
- 230000000116 mitigating effect Effects 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 2
- 239000000047 product Substances 0.000 description 20
- 239000006260 foam Substances 0.000 description 13
- 239000004088 foaming agent Substances 0.000 description 10
- 230000002093 peripheral effect Effects 0.000 description 8
- 239000011295 pitch Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000012466 permeate Substances 0.000 description 5
- 238000011144 upstream manufacturing Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 150000004696 coordination complex Chemical class 0.000 description 4
- 210000003128 head Anatomy 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 210000001525 retina Anatomy 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Images
Classifications
-
- 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
- B29C45/18—Feeding the material into the injection moulding apparatus, i.e. feeding the non-plastified material into the injection unit
- B29C45/1816—Feeding auxiliary material, e.g. colouring material
-
- 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
- B29C45/58—Details
- B29C45/60—Screws
-
- 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
-
- 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
-
- 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
- B29C45/58—Details
- B29C45/63—Venting or degassing means
-
- 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
- B29C45/1701—Component parts, details or accessories; Auxiliary operations using a particular environment during moulding, e.g. moisture-free or dust-free
- B29C2045/1702—Component parts, details or accessories; Auxiliary operations using a particular environment during moulding, e.g. moisture-free or dust-free dissolving or absorbing a fluid in the plastic material
-
- 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
- B29C45/1703—Introducing an auxiliary fluid into the mould
- B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
- B29C2045/1722—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles injecting fluids containing plastic material
-
- 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
- B29C45/58—Details
- B29C45/60—Screws
- B29C2045/605—Screws comprising a zone or shape enhancing the degassing of the plastic material
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Description
請求項2に記載の発明は、請求項1に記載の射出成形機において、前記ガス注入孔は開閉機構を備えていることを特徴とする発泡成形用の射出成形機として構成される。
請求項3に記載の発明は、請求項1または2に記載の射出成形機において、前記ガス注入孔は前記加熱シリンダにおいて軸方向に所定の間隔を開けて2個以上設けられていることを特徴とする発泡成形用の射出成形機として構成される。
請求項4に記載の発明は、請求項1〜3のいずれかの項に記載の射出成形機において、前記加熱シリンダには前記飢餓区間に対応して樹脂圧力センサが設けられていることを特徴とする発泡成形用の射出成形機として構成される。
3 スクリュ 5 第1のステージ
6 第2のステージ 7 シール構造
8 第1の圧縮区間 9 飢餓区間
10 第2の圧縮区間 11 降圧緩和区間
12 深溝部 13 浅溝部
15 シール 16 流動制御機構
18 連通路 19 弁機構
20 着座面 22 ポペット弁
23 頭部 24 軸部
26 皿バネ 27 リティナ
28 樹脂路 31 ガスボンベ
32A、32B 第1、2の注入部
33 樹脂圧力センサ
Claims (4)
- 加熱シリンダと該加熱シリンダ内で回転方向と軸方向とに駆動可能に設けられているスクリュとからなる射出成形機であって、
前記加熱シリンダは、前記スクリュの形状に従って後方の第1のステージと前方の第2のステージとに区分され、前記第1のステージには樹脂を圧縮する第1の圧縮区間が、そして前記第2のステージには樹脂の圧力を低下させる飢餓区間と樹脂を圧縮する第2の圧縮区間とがそれぞれ形成され、
前記加熱シリンダには前記飢餓区間に対応する位置に不活性ガスを注入するガス注入孔が設けられており、
前記スクリュは、前記第1、2のステージの境界において樹脂と不活性ガスの逆流を防止する所定のシール構造が、そして前記シール構造と前記飢餓区間の間に所定の降圧緩和区間が設けられ、前記第2のステージにおけるフライトは2条以上の多条フライトになっていると共にリード角が10〜45度の範囲になっており、
前記シール構造は、前記第1、2のステージを液密的に仕切るシールと、前記第1、2のステージを連通する連通路と、該連通路を閉鎖し前記第1のステージの樹脂が所定の圧力を超えると樹脂を前記第2ステージ側に流動させる弁機構とを備え、
前記降圧緩和区間は、フライト間のスクリュ溝が浅い浅溝部が少なくとも軸方向に2カ所以上形成された区間からなることを特徴とする発泡成形用の射出成形機。 - 請求項1に記載の射出成形機において、前記ガス注入孔は開閉機構を備えていることを特徴とする発泡成形用の射出成形機。
- 請求項1または2に記載の射出成形機において、前記ガス注入孔は前記加熱シリンダにおいて軸方向に所定の間隔を開けて2個以上設けられていることを特徴とする発泡成形用の射出成形機。
- 請求項1〜3のいずれかの項に記載の射出成形機において、前記加熱シリンダには前記飢餓区間に対応して樹脂圧力センサが設けられていることを特徴とする発泡成形用の射出成形機。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017141680A JP6570582B2 (ja) | 2017-07-21 | 2017-07-21 | 発泡成形用の射出成形機 |
PCT/JP2018/026509 WO2019017293A1 (ja) | 2017-07-21 | 2018-07-13 | 発泡成形用の射出成形機 |
ATA9219/2018A AT523204B1 (de) | 2017-07-21 | 2018-07-13 | Formmaschine zum Schaumformen |
DE112018003747.9T DE112018003747T5 (de) | 2017-07-21 | 2018-07-13 | Formmaschine zum schaumformen |
CN201880047190.9A CN110914033B (zh) | 2017-07-21 | 2018-07-13 | 用于发泡成型的成型机 |
Applications Claiming Priority (1)
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JP2017141680A JP6570582B2 (ja) | 2017-07-21 | 2017-07-21 | 発泡成形用の射出成形機 |
Publications (2)
Publication Number | Publication Date |
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JP2019018522A JP2019018522A (ja) | 2019-02-07 |
JP6570582B2 true JP6570582B2 (ja) | 2019-09-04 |
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JP2017141680A Active JP6570582B2 (ja) | 2017-07-21 | 2017-07-21 | 発泡成形用の射出成形機 |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP6570582B2 (ja) |
CN (1) | CN110914033B (ja) |
AT (1) | AT523204B1 (ja) |
DE (1) | DE112018003747T5 (ja) |
WO (1) | WO2019017293A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6560470B1 (ja) * | 2019-03-08 | 2019-08-14 | 三恵技研工業株式会社 | 発泡成形体の製造装置、発泡成形体の製造方法および発泡成形体製造装置用スクリュ |
JP2020142502A (ja) * | 2019-07-18 | 2020-09-10 | 三恵技研工業株式会社 | 発泡成形体の製造装置、発泡成形体の製造方法および発泡成形体製造装置用スクリュ |
JP7390585B2 (ja) * | 2019-08-08 | 2023-12-04 | 三恵技研工業株式会社 | 発泡成形体の製造装置 |
JP2022089258A (ja) * | 2020-12-04 | 2022-06-16 | 株式会社日本製鋼所 | ガス供給装置、射出成形機および発泡成形方法 |
JP2022190230A (ja) | 2021-06-14 | 2022-12-26 | 株式会社日本製鋼所 | 発泡成形用の射出成形機 |
JP2023074097A (ja) * | 2021-11-17 | 2023-05-29 | 株式会社日本製鋼所 | 発泡成形用の射出装置、射出成形機および発泡成形方法 |
JP7267386B1 (ja) * | 2021-11-19 | 2023-05-01 | 三恵技研工業株式会社 | 発泡成形体製造装置及び発泡成形体製造装置用スクリュ |
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JPS4629589Y1 (ja) * | 1966-06-30 | 1971-10-13 | ||
JPS5420467Y2 (ja) * | 1974-06-06 | 1979-07-24 | ||
JP4104034B2 (ja) * | 1999-06-18 | 2008-06-18 | 株式会社日本製鋼所 | 熱可塑性樹脂発泡体成形用可塑化装置 |
EP1293319A4 (en) * | 2000-05-31 | 2006-05-24 | Asahi Chemical Ind | INJECTION MOLDING PROCESS |
JP2001341152A (ja) * | 2000-06-05 | 2001-12-11 | Asahi Kasei Corp | 射出成形装置 |
US7107601B2 (en) * | 2000-06-14 | 2006-09-12 | Canon Kabushiki Kaisha | Foam molding method and apparatus |
JP2002192583A (ja) * | 2000-12-26 | 2002-07-10 | Asahi Kasei Corp | 射出成形装置及び射出成形方法 |
JP2002210793A (ja) * | 2001-01-23 | 2002-07-30 | Asahi Kasei Corp | 射出成形方法 |
JP5710813B1 (ja) * | 2014-03-05 | 2015-04-30 | 株式会社日本製鋼所 | 射出成形機のスクリュおよび射出成形機 |
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- 2017-07-21 JP JP2017141680A patent/JP6570582B2/ja active Active
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2018
- 2018-07-13 WO PCT/JP2018/026509 patent/WO2019017293A1/ja active Application Filing
- 2018-07-13 CN CN201880047190.9A patent/CN110914033B/zh active Active
- 2018-07-13 AT ATA9219/2018A patent/AT523204B1/de active
- 2018-07-13 DE DE112018003747.9T patent/DE112018003747T5/de active Pending
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Publication number | Publication date |
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DE112018003747T5 (de) | 2020-04-09 |
CN110914033A (zh) | 2020-03-24 |
AT523204A1 (de) | 2021-06-15 |
AT523204B1 (de) | 2021-07-15 |
WO2019017293A1 (ja) | 2019-01-24 |
CN110914033B (zh) | 2022-04-01 |
JP2019018522A (ja) | 2019-02-07 |
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