WO1982002850A1 - Stretch-forming hollow articles from thermoplastics sheet - Google Patents

Stretch-forming hollow articles from thermoplastics sheet Download PDF

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Publication number
WO1982002850A1
WO1982002850A1 PCT/AU1982/000016 AU8200016W WO8202850A1 WO 1982002850 A1 WO1982002850 A1 WO 1982002850A1 AU 8200016 W AU8200016 W AU 8200016W WO 8202850 A1 WO8202850 A1 WO 8202850A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheet
tools
blades
tool
stretching
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.)
Ceased
Application number
PCT/AU1982/000016
Other languages
English (en)
French (fr)
Inventor
Pty Ltd Aarc
Brown Anthony Flecknoe
Donald George Keith
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO1982002850A1 publication Critical patent/WO1982002850A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/04—Combined thermoforming and prestretching, e.g. biaxial stretching
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/08—Deep drawing or matched-mould forming, i.e. using mechanical means only
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/30—Moulds
    • B29C51/34—Moulds for undercut articles

Definitions

  • Australian patent specification No. 220 445 discloses a method and apparatus for producing a hollo "open-topped containe by pressing an expansible plunger against a confined molten shee of polyethylene, to the desired depth of draw, then expanding th plunger laterally, allowing the polythene to set, and finally collapsing and retracting the plunger.
  • the polythene may be blown pneumatically against the wall of a female mould while still hot after shaping by the plunger. It is found that this method does not produce containers of sufficient uniform wall thickness to enable any saving of material to be realised.
  • the plunger 30 sliding in a cylindrical housing 32, which is open other end.
  • the plunger 30 supports a number of flat blades 33 pivoted to a slotted flange 31, on the plunger 30 at uniform intervals around the axis, each blade being coplan with the axis.
  • the outer edge 34 of each blade terminates at th end nearest to the closed end of the housing 32 in the heel 35 a at the other end in a tip 36.
  • the heels 35 rest against the internal surface of the housing 32, which surface slopes inwardl over portion of its length as shown at 37.
  • the tooling includes cooperating com ⁇ ponents carried by the two platens 70, 71.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
PCT/AU1982/000016 1981-02-23 1982-02-23 Stretch-forming hollow articles from thermoplastics sheet Ceased WO1982002850A1 (en)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
AU7708/81 1981-02-23
AUPE770781 1981-02-23
AU7706/81 1981-02-23
AUPE770881 1981-02-23
AUPE770581 1981-02-23
AU7707/81 1981-02-23
AU7705/81 1981-02-23
AUPE770681 1981-02-23
US298917810902 1981-09-02
US06/298,917 US4480979A (en) 1978-05-18 1981-09-02 Stretch forming hollow articles

Publications (1)

Publication Number Publication Date
WO1982002850A1 true WO1982002850A1 (en) 1982-09-02

Family

ID=27507347

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1982/000016 Ceased WO1982002850A1 (en) 1981-02-23 1982-02-23 Stretch-forming hollow articles from thermoplastics sheet

Country Status (7)

Country Link
US (1) US4480979A (enExample)
EP (1) EP0072832A1 (enExample)
BE (1) BE892233A (enExample)
GR (1) GR76068B (enExample)
PT (1) PT74483B (enExample)
WO (1) WO1982002850A1 (enExample)
ZA (1) ZA821179B (enExample)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5523046A (en) * 1984-05-22 1996-06-04 The Family Trust U/T/A Method of using a female tool with movable plates to form a sheet of material into a flower pot or flower pot cover having outward fins
US5573789A (en) * 1984-05-22 1996-11-12 Southpac Trust International, Inc. Apparatus having blades and plates for forming sheet material into a flower pot cover having outward fins
US4950216A (en) * 1984-05-22 1990-08-21 Highland Supply Corporation Method of forming a flower pot
FR2602712B1 (fr) * 1986-08-18 1989-04-21 Monoplast Sa Procede et dispositif de fabrication de recipients par thermoformage et recipients ainsi obtenus
US4941814A (en) * 1987-05-28 1990-07-17 Shigeru Kogyo Kabushiki Kaisha Vacuum forming apparatus
JPH0615204B2 (ja) * 1987-05-28 1994-03-02 しげる工業株式会社 真空成形装置
FR2640545B1 (fr) * 1988-12-16 1991-03-08 Monoplast Procede et dispositif de thermoformage d'objets creux par etirage-compression
DE3929826C1 (enExample) * 1989-09-07 1990-04-19 Schmalbach-Lubeca Ag, 3300 Braunschweig, De
JP2560560B2 (ja) * 1991-04-22 1996-12-04 株式会社島津製作所 熱型光検出器およびその支持台の製造方法
TW311896B (enExample) * 1995-06-07 1997-08-01 Elliot Younessian
US5637330A (en) * 1995-06-07 1997-06-10 Samsonite Corporation Apparatus for differential pressure forming shells for hard sided luggage containers
US5755311A (en) * 1995-06-07 1998-05-26 Samsonite Corporation Differential pressure formed luggage with molded integrated frame
US5868309A (en) * 1996-07-26 1999-02-09 Fort James Corporation Carton having buckle-controlled brim curl and method and blank for forming the same
US5798079A (en) * 1996-08-20 1998-08-25 Fort James Corporation Method and apparatus for forming drink-thru cup lids
DE20319530U1 (de) * 2003-12-16 2004-02-26 Marbach Werkzeugbau Gmbh Thermoformwerkzeug
US7704067B2 (en) * 2006-02-07 2010-04-27 Tiodize Company, Inc. Method and mold for making non-metallic fiber reinforced parts
WO2008040821A2 (de) * 2007-02-28 2008-04-10 Basf Se Hohlkörper aus polystyrol durch spritzstreckblasen
US8545953B2 (en) * 2007-02-28 2013-10-01 Styrolution GmbH Hollow polystyrene body obtained by injection stretch blow moulding
FR2947475B1 (fr) * 2009-07-01 2011-08-19 Arcil Piston de positionnement d'un decor de pot alimentaire dans un moule, dispositif et procede associes

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3169688A (en) * 1960-07-25 1965-02-16 Traders Leasing Ltd Thin walled container
US3172927A (en) * 1962-08-22 1965-03-09 Mojonnier Inc Albert Method and apparatus for molding plastic articles
US3759416A (en) * 1970-08-25 1973-09-18 Int Bakerage Inc Container
AU4856972A (en) * 1971-11-29 1974-05-09 Aci International Limited Cuspated sheet forming
AU5879473A (en) * 1972-08-17 1975-02-06 Ici Australia Limited Cuspated sheet
US3893795A (en) * 1970-08-20 1975-07-08 Rowland Dev Corp Embossing rolls with areas of differential hardness
US3901640A (en) * 1973-12-03 1975-08-26 Dow Chemical Co Expandable forming plug
US3911187A (en) * 1973-12-26 1975-10-07 Ethyl Corp Embossed plastic film
US3944124A (en) * 1971-07-28 1976-03-16 Schmalbach-Lubeca-Werke Ag Plastic containers
AU4716079A (en) * 1978-05-16 1980-05-01 Hitek Limited Stretch forming a hollow article

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB860810A (en) * 1957-01-22 1961-02-08 Ici Australia Ltd Method and apparatus for the production of hollow articles
FR1214895A (fr) * 1958-08-26 1960-04-12 Comptoir Des Prod Chim Ind Procédé et dispositif pour la fabrication de corps creux en matière plastique
US2985915A (en) * 1958-12-12 1961-05-30 Hedwin Corp Thermoforming process for thermoplastic sheeting
FR1238800A (fr) * 1959-07-06 1960-08-19 Hoechst Ag Procédé d'étirage ou d'emboutissage profond et guidé pour la fabrication de corps creux en matières synthétiques thermoplastiques
US3975493A (en) * 1973-12-03 1976-08-17 The Dow Chemical Company Method for forming hollow articles from thermoplastic sheeting or film using an expandable plug

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3169688A (en) * 1960-07-25 1965-02-16 Traders Leasing Ltd Thin walled container
US3172927A (en) * 1962-08-22 1965-03-09 Mojonnier Inc Albert Method and apparatus for molding plastic articles
US3893795A (en) * 1970-08-20 1975-07-08 Rowland Dev Corp Embossing rolls with areas of differential hardness
US3759416A (en) * 1970-08-25 1973-09-18 Int Bakerage Inc Container
US3944124A (en) * 1971-07-28 1976-03-16 Schmalbach-Lubeca-Werke Ag Plastic containers
AU4856972A (en) * 1971-11-29 1974-05-09 Aci International Limited Cuspated sheet forming
AU5879473A (en) * 1972-08-17 1975-02-06 Ici Australia Limited Cuspated sheet
US3901640A (en) * 1973-12-03 1975-08-26 Dow Chemical Co Expandable forming plug
US3911187A (en) * 1973-12-26 1975-10-07 Ethyl Corp Embossed plastic film
AU4716079A (en) * 1978-05-16 1980-05-01 Hitek Limited Stretch forming a hollow article

Also Published As

Publication number Publication date
BE892233A (fr) 1982-06-16
GR76068B (enExample) 1984-08-03
US4480979A (en) 1984-11-06
PT74483B (en) 1983-09-26
PT74483A (en) 1982-03-01
EP0072832A1 (en) 1983-03-02
ZA821179B (en) 1983-04-27

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Legal Events

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Designated state(s): AU BR DK FI HU JP NO

AL Designated countries for regional patents

Designated state(s): AT BE CH DE FR GB LU NL SE