WO1995031320A1 - Verfahren und vorrichtungen zur herstellung eines formkörpers aus kunststoff - Google Patents
Verfahren und vorrichtungen zur herstellung eines formkörpers aus kunststoff Download PDFInfo
- Publication number
- WO1995031320A1 WO1995031320A1 PCT/EP1995/001863 EP9501863W WO9531320A1 WO 1995031320 A1 WO1995031320 A1 WO 1995031320A1 EP 9501863 W EP9501863 W EP 9501863W WO 9531320 A1 WO9531320 A1 WO 9531320A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mold cavity
- plastic
- dispenser
- dispensing opening
- closable
- Prior art date
Links
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
- B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
- B29C31/04—Feeding of the material to be moulded, e.g. into a mould 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
- B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
- B29C31/04—Feeding of the material to be moulded, e.g. into a mould cavity
- B29C31/042—Feeding of the material to be moulded, e.g. into a mould cavity using dispensing heads, e.g. extruders, placed over or apart from the moulds
- B29C31/048—Feeding of the material to be moulded, e.g. into a mould cavity using dispensing heads, e.g. extruders, placed over or apart from the moulds the material being severed at the dispensing head exit, e.g. as ring, drop or gob, and transported immediately into the mould, e.g. by gravity
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/34—Feeding the material to the mould or the compression means
- B29C2043/3433—Feeding the material to the mould or the compression means using dispensing heads, e.g. extruders, placed over or apart from the moulds
-
- 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
- B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
- B29C31/04—Feeding of the material to be moulded, e.g. into a mould cavity
- B29C31/06—Feeding of the material to be moulded, e.g. into a mould cavity in measured doses, e.g. by weighting
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/34—Feeding the material to the mould or the compression means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/20—Flexible squeeze tubes, e.g. for cosmetics
Definitions
- the invention relates to a method and devices for producing a molded body made of plastic by separating individual portions of material from a vertically downward stream of material emerging from a closable dispensing opening of a material dispenser, made of plastic plasticized by heat and transferring the separated portion of material into a mold cavity and pressing it into a molded body Closing the mold cavity.
- annular blanks are obtained by separating individual portions of material by closing a tube part of the material dispenser directed towards the mold cavity by means of a closing body which can be displaced in the axial direction against the tube end, the separated annular material portions being transferred into the mold cavity in free fall.
- the annular portions of material are shaped into blanks approximately lenticular in cross-sectional profile by controlling the closing body.
- the annular blanks are preferably detached from the closing body by a gas flow directed at the separation point.
- This process requires a complicated nozzle system that also has a specific one
- a further method and a further device are known from EP-Bl-328 096.
- a blank is discharged through a nozzle and separated, the entire heated thermoplastic material required for a blank being deposited on an intermediate support which can be extended under the nozzle and whose surface forms part of the mold.
- the intermediate carrier is lowered and thus transfers the blank into the press mold.
- the mold is more complicated and therefore more expensive due to the extendable intermediate carrier.
- the blanks can also have an annular shape.
- the blanks In connection with the production of moldings in the form of a tube, which should have a closed dispensing opening, for. B. a pierceable membrane or in the case of so-called “twist off” or “brake off” tubes, in which the outlet opening is only released after turning off and / or breaking off a correspondingly designed closure part, result from the use of annular blanks Problems, since bubble-shaped air pockets or missing parts often occur during pressing, so that rejects arise.
- the object of the invention is to provide a method and a device with which, in particular, closed portions of material of a desired size can be obtained in a simple and quick manner without additional measures, and to specify a device with which and Desired - in particular closed - portions of material can be produced and have a simple structure.
- the method and the device should make it possible to produce perfect tubes with an initially closed dispensing opening.
- FIG. 1 shows a device according to the invention in a schematic representation, in which a material flow emerges through the opened dispensing opening of a material dispenser
- Fig. 2 to 5 the same as in Fig. 1, but in different stages of the process of forming a desired portion of material.
- the material dispenser 1 has an outlet opening 5 in its base 4.
- a closure body 6 is arranged and designed so that it can move up and down such that its lower end 7, in an upper position (FIG. 1), opens the dispensing opening 5 for the escape of plastic 3, in a middle lowered position (FIG. 2). closes the dispensing opening 5 and in a lower position (FIGS. 3, 4) in the direction of a mold cavity 8 of a compression molding 8 1 which can be arranged under the material dispenser 1 and which can have any known — also multi-part — shape (which is the counter shape) not shown), is extended from the material dispenser 1.
- a scissor device 9 is arranged between the press-molded part 8 'and the bottom 4 of the material dispenser 1, the knives 10 of which are arranged such that they can move towards and away from one another in such a way that their cutting edges 11 overlap somewhat at the end of a cutting process (see FIG. 4).
- the knives 10 preferably have bevelled cutting edges 11.
- the procedure is as follows.
- the material dispenser 1 is filled with a heated thermoplastic 3 through the extruder screw 2.
- the end 7 of the closure body 6 is moved upwards in the direction of the wall of the material dispenser 1 opposite the bottom 4 (see FIG. 1), so that the dispensing opening 5 is opened.
- a material stream 12 made of thermoplastic material emerges through the discharge opening 5, indicated by arrows in FIG. 1.
- the discharge opening 5 is closed by moving the closure body 6 downward (see FIG. 2).
- a material flow part 13 is cut off.
- the material flow part 13 depends here on the lower end 7 of the closure body 6 (see FIG. 2) due to the adhesive or adhesive properties of the thermoplastic plastic which make it difficult to separate the blanks in the known methods.
- the closure body 6 is then lowered further with the material flow part 13 hanging at its lower end 7 until the free lower end of the material flow part 13 is supported on the wall of the mold cavity 8 (see FIG. 3).
- the scissors device 9 is actuated and its knives 10 move towards one another and separate the desired portion of material 14 from the material flow part 13 (see FIG. 4), the portion of material 14 having a closed, compact, drop-like shape. Then the knives 10 the scissors device 9 moved back to their starting position.
- the scissors device 9 can be arranged to be height-adjustable (not shown) in order to vary the size of the separated portions of material 14. There is also the possibility, on the retraction path of the knives 10, of providing a cleaning device (not shown) (which may also be deliverable) for cleaning the knives 10 from any plastic that may be adhering.
- the scissors device 9 and in particular its knives 10 are preferably cooled (not shown) in order to largely prevent plastic from adhering to the knives 10.
- the knives 10 can alternatively or additionally be provided with a non-stick coating.
- the size of the material flow 12 emerging from the dispensing opening 5 from the material dispenser 1 can be controlled by regulating the distance of the end 7 of the closure body 6 from the dispensing opening 5 and / or by keeping the dispensing opening 5 open.
- the material flow 12 is practically stopped, so that a clean cut without material flowing in is made possible.
- the Stopping the material flow can also be done by z. B. is briefly generated by the movement of a piston of a piston unit (not shown) in the interior of the material dispenser, so that no further material can escape through the open discharge opening 5 (Fig. 1).
Landscapes
- Mechanical Engineering (AREA)
- Engineering & Computer Science (AREA)
- Robotics (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Materials For Medical Uses (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
Description
Claims
Priority Applications (17)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/737,749 US6045736A (en) | 1994-05-18 | 1995-05-17 | Method for producing a molded plastic article |
AU26131/95A AU692557B2 (en) | 1994-05-18 | 1995-05-17 | Method and devices for producing a moulded plastic article |
PL95317226A PL177137B1 (pl) | 1994-05-18 | 1995-05-17 | Sposób i urządzenie do wytwarzania kształtek z masy tworzywa sztucznego |
BR9507665A BR9507665A (pt) | 1994-05-18 | 1995-05-17 | Método e dispositivo para produzir artigo de plãstico moldado |
EP95920819A EP0759843B1 (de) | 1994-05-18 | 1995-05-17 | Verfahren und vorrichtungen zur herstellung eines formkörpers aus kunststoff |
CA002190605A CA2190605C (en) | 1994-05-18 | 1995-05-17 | Method and devices for producing a moulded plastic article |
JP52937095A JP3777193B2 (ja) | 1994-05-18 | 1995-05-17 | 合成樹脂から中空体を製造するための方法及び装置 |
RO96-02142A RO118009B1 (ro) | 1994-05-18 | 1995-05-17 | Procedeu si instalatie pentru confectionarea de piese fasonate din materiale sintetice |
SK1463-96A SK280151B6 (sk) | 1994-05-18 | 1995-05-17 | Spôsob výroby tvarového telesa z plastickej hmoty |
DE59504084T DE59504084D1 (de) | 1994-05-18 | 1995-05-17 | Verfahren und vorrichtungen zur herstellung eines formkörpers aus kunststoff |
KR1019960706361A KR100336704B1 (ko) | 1994-05-18 | 1995-05-17 | 모울딩된 플라스틱제품의 제조방법 및 장치 |
UA96124709A UA47405C2 (uk) | 1994-05-18 | 1995-05-17 | Спосіб та пристрій для одержання формованого виробу з пластмаси |
EE9600205A EE03309B1 (et) | 1994-05-18 | 1995-05-17 | Meetod ja seade plastmassist vormitud esemete valmistamiseks |
FI964613A FI113254B (fi) | 1994-05-18 | 1996-11-18 | Menetelmä ja laitteet muotokappaleen valmistamiseksi muovista |
MXPA/A/1996/005643A MXPA96005643A (en) | 1994-05-18 | 1996-11-18 | Method and device to produce a mold plastic article |
BG101027A BG62126B1 (bg) | 1994-05-18 | 1996-12-04 | Метод и устройства за производство на лети пластични изделия |
LVP-96-462A LV11796B (en) | 1994-05-18 | 1996-12-17 | Method and devices for producing a moulded plastic article |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP4417435.7 | 1994-05-18 | ||
DE4417435A DE4417435C1 (de) | 1994-05-18 | 1994-05-18 | Verfahren und Vorrichtungen zur Herstellung eines Formkörpers aus Kunststoff |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995031320A1 true WO1995031320A1 (de) | 1995-11-23 |
Family
ID=6518402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1995/001863 WO1995031320A1 (de) | 1994-05-18 | 1995-05-17 | Verfahren und vorrichtungen zur herstellung eines formkörpers aus kunststoff |
Country Status (28)
Country | Link |
---|---|
US (1) | US6045736A (de) |
EP (1) | EP0759843B1 (de) |
JP (1) | JP3777193B2 (de) |
KR (1) | KR100336704B1 (de) |
CN (1) | CN1065810C (de) |
AT (1) | ATE172662T1 (de) |
AU (1) | AU692557B2 (de) |
BG (1) | BG62126B1 (de) |
BR (1) | BR9507665A (de) |
CA (1) | CA2190605C (de) |
CZ (1) | CZ291374B6 (de) |
DE (2) | DE4417435C1 (de) |
EE (1) | EE03309B1 (de) |
ES (1) | ES2126284T3 (de) |
FI (1) | FI113254B (de) |
HR (1) | HRP950297B1 (de) |
HU (1) | HU217854B (de) |
IN (1) | IN187981B (de) |
LT (1) | LT4190B (de) |
LV (1) | LV11796B (de) |
NZ (1) | NZ287414A (de) |
PL (1) | PL177137B1 (de) |
RO (1) | RO118009B1 (de) |
RU (1) | RU2151058C1 (de) |
SI (1) | SI9520063A (de) |
SK (1) | SK280151B6 (de) |
UA (1) | UA47405C2 (de) |
WO (1) | WO1995031320A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7731877B2 (en) | 2005-01-21 | 2010-06-08 | Toyo Seikan Kaisha, Ltd. | Method and device for feeding molten resin, and method for manufacturing molded article by using the fed molten resin |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7179071B1 (en) | 2003-12-24 | 2007-02-20 | Graham Packaging Pet Technologies Inc. | Compression molding container preforms |
USD749157S1 (en) * | 2014-01-05 | 2016-02-09 | Makerbot Industries, Llc | Three-dimensional printer extruder carriage |
US20200276744A1 (en) * | 2016-02-10 | 2020-09-03 | Inovia Technologies Sa | Device for continuously dosing plastic material, especially for a unit for producing components made of plastic material or the like |
US10086543B2 (en) * | 2016-08-09 | 2018-10-02 | Rohm And Haas Electronic Materials Cmp Holdings, Inc. | Auto catch apparatus and method of use in making chemical mechanical polishing pads |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB155922A (en) * | 1919-10-03 | 1921-01-03 | James Dennis Roots | Improved apparatus for controlling the delivery of glass from furnaces to moulds and the like |
US1590924A (en) * | 1918-11-25 | 1926-06-29 | Hartford Empire Co | Method of and apparatus for feeding glass |
US1780550A (en) * | 1927-03-10 | 1930-11-04 | Hartford Empire Co | Composite plunger for glass feeders |
US1798217A (en) * | 1927-09-14 | 1931-03-31 | Tygart Valley Glass Company | Method of and apparatus for forming glass articles |
US2448915A (en) * | 1944-01-15 | 1948-09-07 | Arthur W Schmid | Apparatus for feeding glass |
US2894285A (en) * | 1954-10-12 | 1959-07-14 | Owens Illinois Glass Co | Gob feeding of organic plastic materials |
CH443647A (fr) * | 1964-03-18 | 1967-09-15 | Aichele Marie Katherina | Dispositif de dosage pour distribuer des doses d'une matière plastique moulable |
JPS5871118A (ja) * | 1981-10-23 | 1983-04-27 | Toshiba Mach Co Ltd | 押出−プレス成形方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US894285A (en) | 1903-09-14 | 1908-07-28 | Vilter Mfg Co | Refrigerating apparatus. |
FR1160494A (fr) * | 1956-11-08 | 1958-07-16 | Alca Ets | Procédé et appareillage pour la fabrication de pièces moulées en matière plastique |
BE635092A (de) * | 1962-07-19 | 1900-01-01 | ||
US3375553A (en) * | 1966-03-11 | 1968-04-02 | Owens Illinois Inc | Valve device for plastic extruder |
CA1025167A (en) * | 1972-12-29 | 1978-01-31 | Kenneth F. Charter | Method of producing thermoplastic articles |
CH638716A5 (de) * | 1979-07-12 | 1983-10-14 | Karl Maegerle | Verfahren zur herstellung eines formkoerpers aus kunststoff. |
US4296061A (en) * | 1980-03-19 | 1981-10-20 | Owens-Illinois, Inc. | Thermoplastic gob feeding and transfer method and apparatus |
US4784819A (en) * | 1982-03-19 | 1988-11-15 | Fedders Machine & Tool Co., Inc. | Method of injection molding of plastic parts utilizing an accumlator chamber and valve chamber between the plasticizer and mold |
DE3804464C1 (de) * | 1988-02-12 | 1989-06-08 | Aisa Automation Industrielle S.A., Vouvry, Ch |
-
1994
- 1994-05-18 DE DE4417435A patent/DE4417435C1/de not_active Expired - Fee Related
-
1995
- 1995-05-15 IN IN539CA1995 patent/IN187981B/en unknown
- 1995-05-17 KR KR1019960706361A patent/KR100336704B1/ko not_active IP Right Cessation
- 1995-05-17 CN CN95193135A patent/CN1065810C/zh not_active Expired - Fee Related
- 1995-05-17 DE DE59504084T patent/DE59504084D1/de not_active Expired - Fee Related
- 1995-05-17 RU RU96124494/12A patent/RU2151058C1/ru not_active IP Right Cessation
- 1995-05-17 HU HU9603164A patent/HU217854B/hu not_active IP Right Cessation
- 1995-05-17 UA UA96124709A patent/UA47405C2/uk unknown
- 1995-05-17 WO PCT/EP1995/001863 patent/WO1995031320A1/de active IP Right Grant
- 1995-05-17 PL PL95317226A patent/PL177137B1/pl not_active IP Right Cessation
- 1995-05-17 NZ NZ287414A patent/NZ287414A/en not_active IP Right Cessation
- 1995-05-17 CA CA002190605A patent/CA2190605C/en not_active Expired - Fee Related
- 1995-05-17 AT AT95920819T patent/ATE172662T1/de not_active IP Right Cessation
- 1995-05-17 EP EP95920819A patent/EP0759843B1/de not_active Expired - Lifetime
- 1995-05-17 BR BR9507665A patent/BR9507665A/pt not_active IP Right Cessation
- 1995-05-17 CZ CZ19963374A patent/CZ291374B6/cs not_active IP Right Cessation
- 1995-05-17 EE EE9600205A patent/EE03309B1/xx not_active IP Right Cessation
- 1995-05-17 JP JP52937095A patent/JP3777193B2/ja not_active Expired - Fee Related
- 1995-05-17 US US08/737,749 patent/US6045736A/en not_active Expired - Fee Related
- 1995-05-17 AU AU26131/95A patent/AU692557B2/en not_active Ceased
- 1995-05-17 RO RO96-02142A patent/RO118009B1/ro unknown
- 1995-05-17 SK SK1463-96A patent/SK280151B6/sk not_active IP Right Cessation
- 1995-05-17 SI SI9520063A patent/SI9520063A/sl not_active IP Right Cessation
- 1995-05-17 ES ES95920819T patent/ES2126284T3/es not_active Expired - Lifetime
- 1995-05-18 HR HRP4417435.7A patent/HRP950297B1/xx not_active IP Right Cessation
-
1996
- 1996-11-18 FI FI964613A patent/FI113254B/fi active
- 1996-12-04 BG BG101027A patent/BG62126B1/bg unknown
- 1996-12-13 LT LT96-174A patent/LT4190B/lt not_active IP Right Cessation
- 1996-12-17 LV LVP-96-462A patent/LV11796B/lv unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1590924A (en) * | 1918-11-25 | 1926-06-29 | Hartford Empire Co | Method of and apparatus for feeding glass |
GB155922A (en) * | 1919-10-03 | 1921-01-03 | James Dennis Roots | Improved apparatus for controlling the delivery of glass from furnaces to moulds and the like |
US1780550A (en) * | 1927-03-10 | 1930-11-04 | Hartford Empire Co | Composite plunger for glass feeders |
US1798217A (en) * | 1927-09-14 | 1931-03-31 | Tygart Valley Glass Company | Method of and apparatus for forming glass articles |
US2448915A (en) * | 1944-01-15 | 1948-09-07 | Arthur W Schmid | Apparatus for feeding glass |
US2894285A (en) * | 1954-10-12 | 1959-07-14 | Owens Illinois Glass Co | Gob feeding of organic plastic materials |
CH443647A (fr) * | 1964-03-18 | 1967-09-15 | Aichele Marie Katherina | Dispositif de dosage pour distribuer des doses d'une matière plastique moulable |
JPS5871118A (ja) * | 1981-10-23 | 1983-04-27 | Toshiba Mach Co Ltd | 押出−プレス成形方法 |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 007, no. 165 (M - 230) 20 July 1983 (1983-07-20) * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7731877B2 (en) | 2005-01-21 | 2010-06-08 | Toyo Seikan Kaisha, Ltd. | Method and device for feeding molten resin, and method for manufacturing molded article by using the fed molten resin |
US8043540B2 (en) | 2005-01-21 | 2011-10-25 | Toyo Seikan Kaisha, Ltd. | Method and device for feeding molten resin, and method for manufacturing molded article by using the fed molten resin |
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