WO1999054113A1 - Method and apparatus for injection blow molding an automotive component - Google Patents
Method and apparatus for injection blow molding an automotive component Download PDFInfo
- Publication number
- WO1999054113A1 WO1999054113A1 PCT/US1999/008688 US9908688W WO9954113A1 WO 1999054113 A1 WO1999054113 A1 WO 1999054113A1 US 9908688 W US9908688 W US 9908688W WO 9954113 A1 WO9954113 A1 WO 9954113A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- injection
- mold
- blow
- parison
- expanded
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06—Injection blow-moulding
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C2049/023—Combined blow-moulding and manufacture of the preform or the parison using inherent heat of the preform, i.e. 1 step blow moulding
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/46—Component parts, details or accessories; Auxiliary operations characterised by using particular environment or blow fluids other than air
- B29C2049/4602—Blowing fluids
- B29C2049/4605—Blowing fluids containing an inert gas, e.g. helium
- B29C2049/4608—Nitrogen
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C2049/4856—Mounting, exchanging or centering moulds or parts thereof
- B29C2049/4858—Exchanging mould parts, e.g. for changing the mould size or geometry for making different products in the same mould
-
- 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
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
-
- 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
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
-
- 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
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3044—Bumpers
Definitions
- This invention relates to a method and apparatus for manufacturing an automotive component such as a bumper beam and body panel.
- this invention relates to a method and apparatus for manufacturing a relatively large one piece automotive component at a single station.
- the disadvantages of the prior art may be overcome by providing a method and apparatus for manufacturing an automotive component such as a bumper beam and body panel at a single station.
- a mold having sections which are movable between a parison molding position and an expanded position. At the first stage, the sections cooperate to present a parison cavity for forming a parison. Molten material is injected into the parison cavity. The sections then retract to an expanded position. The parison is then blown forcing the material to expand to conform to the cavity in the expanded condition. Once the part is sufficiently solidified, the mold is opened and then the part is ejected.
- Figure 1 is a sectional view of a mold embodying the present invention, the mold in a parison forming condition;
- Figure 2 is sectional view of the mold of Figure 1 , the mold in an expanded condition;
- Figure 3 is a sectional view of mold of Figure 1 undergoing a blowing process;
- Figure 4 is a sectional view of a finished part manufactured in accordance with the present invention.
- Figure 5 is a sectional view of a bumper beam manufactured in accordance with the present invention.
- Figure 6 is a sectional view of a body panel manufactured in accordance with the present invention.
- Figure 7 is a flow chart showing one embodiment of steps in accordance with the method of the present invention.
- the mold apparatus 10 is schematically illustrated in Figure 1.
- the mold 10 comprises a base 12, movable sections 14, 16 and 18 and side walls 20 and 22.
- the movable sections are typical injection mold sections which are constructed to be heated to about 85EC.
- Base 12 has an anvil 24 which extends beyond molding surfaces 26 and 28. Extending into the base 12 from anvil 24 are two slots 30 and 32. Slots 30 and 32 join about the ends of anvil 24 to extend about the circumference of the base of the anvil 24.
- Moveable sections 14 and 18 have respective end surfaces 36 and 38 which are shaped to be complementary with molding surfaces 26 and 28, respectively. Sections 14 and 18 are 3
- Sections 14 and 18 are spaced on opposite sides of anvil 24.
- Section 16 has an end surface 34 which is shaped to be complementary to the distal end of anvil 24. Section 16 is spaced from the distal end of anvil 24.
- parison cavity When the sections 14, 16 and 18 are closed relative to the base 12 in the parison forming condition, slots 30 and 32 and the space between anvil 24 and the sections 14, 16 and 18 define a parison cavity. When sections 14 and 18 are retracted such that end surfaces 34, 36 and 38 form a continuous surface, the parison cavity is expanded defining blow cavities 46 on opposite sides of anvil 24. Blow cavities 46 are defined by molding surfaces 26 and 28, side walls 20 and 22 and end surfaces 34, 36 and 38.
- the sections 14, 16 and 18 cooperate to present a parison cavity for forming a parison 40.
- Molten plastic material is injected into the parison cavity in a conventional manner well known in the art.
- the sections 14 and 18 then retract to an expanded position, presenting blow cavities 46.
- a pressurized gas such as air or nitrogen, is then injected through passageway 42 in anvil 24.
- the parison 40 is then blown outwardly forcing the parison 40 to expand to conform to the cavity in the expanded condition.
- the mold 10 is opened and then the part 44 is ejected.
- Figures 5 and 6 illustrate a bumper beam and a body panel, respectively,.manufactured in accordance with the present invention.
- the bumper beam 52 has been injection molded and includes a predetermined portion 54 that has been additionally blow-molded by retracting predetermined sections of the mold to form predetermined blow cavities and injecting a pressurized gas to force the predetermined portion 54 of the bumper beam 52 to take the shape of the predetermined blow cavities.
- the body panel 62 has been injection molded and includes a predetermined portion 64 that has been additionally blow-molded by retracting predetermined sections of the mold to form predetermined blow cavities and injecting a pressurized gas to force the predetermined portion 64 of the bumper beam 62 to take the shape of the predetermined blow cavities.
- Figure 7 is a flow chart showing one embodiment of steps in accordance with the method of the present invention.
- the steps include: A) injecting 72 molten material into a parison cavity of a mold to form a parison, wherein the mold has at least two sections that are moveable between a first position defining the parison cavity and an expanded second position defining 4
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99918727A EP1112165B1 (en) | 1998-04-22 | 1999-04-21 | Method for injection blow molding an automotive component |
AT99918727T ATE270609T1 (en) | 1998-04-22 | 1999-04-21 | METHOD FOR INJECTION BLOW MOLDING AUTOMOBILE PARTS |
US09/673,095 US6555039B1 (en) | 1998-04-22 | 1999-04-21 | Method for injection blow molding an automotive component |
CA002329041A CA2329041C (en) | 1998-04-22 | 1999-04-21 | Method and apparatus for injection blow molding an automotive component |
DE69918560T DE69918560T2 (en) | 1998-04-22 | 1999-04-21 | METHOD FOR THE SPRAY-BLASTING OF AUTOMOTIVE PARTS |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US8261798P | 1998-04-22 | 1998-04-22 | |
US60/082,617 | 1998-04-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999054113A1 true WO1999054113A1 (en) | 1999-10-28 |
Family
ID=22172294
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1999/008688 WO1999054113A1 (en) | 1998-04-22 | 1999-04-21 | Method and apparatus for injection blow molding an automotive component |
Country Status (6)
Country | Link |
---|---|
US (1) | US6555039B1 (en) |
EP (1) | EP1112165B1 (en) |
AT (1) | ATE270609T1 (en) |
CA (1) | CA2329041C (en) |
DE (1) | DE69918560T2 (en) |
WO (1) | WO1999054113A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6949209B2 (en) * | 2003-10-22 | 2005-09-27 | Cadillac Products Automotive Company | Molded foam vehicle energy absorbing device and method of manufacture |
US7220374B2 (en) * | 2003-10-22 | 2007-05-22 | Cadillac Products Automotive Company | Molded foam vehicle energy absorbing device and method of manufacture |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3029468A (en) * | 1959-11-03 | 1962-04-17 | Emery I Valyi | Apparatus for making plastic articles |
US3337910A (en) * | 1962-02-14 | 1967-08-29 | Dow Chemical Co | Bottle forming apparatus |
US3809517A (en) * | 1972-02-28 | 1974-05-07 | Synthetic Electronic Tech | Blow injection apparatus |
USH671H (en) * | 1987-08-06 | 1989-09-05 | Process for forming thermoplastic parts especially large structural parts of high viscosity resin replicating mold surface | |
US5271650A (en) * | 1990-09-29 | 1993-12-21 | Mazda Motor Corporation | Vehicle bumper and method of making same |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB703970A (en) * | 1950-04-22 | 1954-02-10 | Friedrich Lorenz | Improvements in and apparatus for forming hollow articles of thermoplastic material |
DE937078C (en) * | 1950-10-07 | 1955-12-29 | Hahn & Kolb | Method and device for the production of hollow bodies from thermoformable material |
FR1046602A (en) * | 1951-05-31 | 1953-12-08 | Plasticomnium | Manufacturing process of plastic containers |
DE2341400C3 (en) * | 1973-08-16 | 1979-01-18 | Frupack-Plastic, Kunststoffverarbeitungswerk Ingeborg Luetten, 2000 Hamburg | Method and device for producing a hollow body preferably filled with a liquid medium |
US5849377A (en) * | 1991-01-30 | 1998-12-15 | Asahi Kasei Kogyo Kabushiki Kaisha | Injection-molded hollow article, hollow injection molding method and metal mold therefor |
JP3128664B2 (en) * | 1991-09-27 | 2001-01-29 | キョーラク株式会社 | Method of manufacturing housing panel for electric device |
BE1006435A3 (en) * | 1992-12-07 | 1994-08-23 | Solvay | Method and device for blow molding hollow thermoplastic. |
DE69526324T2 (en) * | 1994-07-15 | 2002-11-21 | Idemitsu Petrochemical Co., Ltd. | HIGHLY STIFF POLYPROPYLENE RESIN AND BLOW MOLDED ITEM FROM IT |
WO1996005044A1 (en) * | 1994-08-10 | 1996-02-22 | Idemitsu Petrochemical Co., Ltd. | Vehicle resin-made shock absorbing member and production process thereof |
JP3403016B2 (en) * | 1997-08-04 | 2003-05-06 | 住友化学工業株式会社 | Method for producing synthetic resin molded article having hollow part |
-
1999
- 1999-04-21 CA CA002329041A patent/CA2329041C/en not_active Expired - Fee Related
- 1999-04-21 US US09/673,095 patent/US6555039B1/en not_active Expired - Fee Related
- 1999-04-21 AT AT99918727T patent/ATE270609T1/en not_active IP Right Cessation
- 1999-04-21 WO PCT/US1999/008688 patent/WO1999054113A1/en active IP Right Grant
- 1999-04-21 DE DE69918560T patent/DE69918560T2/en not_active Expired - Lifetime
- 1999-04-21 EP EP99918727A patent/EP1112165B1/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3029468A (en) * | 1959-11-03 | 1962-04-17 | Emery I Valyi | Apparatus for making plastic articles |
US3337910A (en) * | 1962-02-14 | 1967-08-29 | Dow Chemical Co | Bottle forming apparatus |
US3809517A (en) * | 1972-02-28 | 1974-05-07 | Synthetic Electronic Tech | Blow injection apparatus |
USH671H (en) * | 1987-08-06 | 1989-09-05 | Process for forming thermoplastic parts especially large structural parts of high viscosity resin replicating mold surface | |
US5271650A (en) * | 1990-09-29 | 1993-12-21 | Mazda Motor Corporation | Vehicle bumper and method of making same |
Also Published As
Publication number | Publication date |
---|---|
CA2329041C (en) | 2008-10-07 |
EP1112165A4 (en) | 2002-07-24 |
DE69918560T2 (en) | 2005-08-25 |
EP1112165B1 (en) | 2004-07-07 |
EP1112165A1 (en) | 2001-07-04 |
DE69918560D1 (en) | 2004-08-12 |
CA2329041A1 (en) | 1999-10-28 |
US6555039B1 (en) | 2003-04-29 |
ATE270609T1 (en) | 2004-07-15 |
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