DE844214C - Process for the production of hollow bodies - Google Patents

Process for the production of hollow bodies

Info

Publication number
DE844214C
DE844214C DEB1581A DEB0001581A DE844214C DE 844214 C DE844214 C DE 844214C DE B1581 A DEB1581 A DE B1581A DE B0001581 A DEB0001581 A DE B0001581A DE 844214 C DE844214 C DE 844214C
Authority
DE
Germany
Prior art keywords
preform
mold
production
hollow bodies
hollow body
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.)
Expired
Application number
DEB1581A
Other languages
German (de)
Inventor
Jakob Bernhard
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Application granted granted Critical
Publication of DE844214C publication Critical patent/DE844214C/en
Expired 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
    • 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
    • B29C49/061—Injection blow-moulding with parison holding means displaceable between injection and blow stations
    • B29C49/064—Injection blow-moulding with parison holding means displaceable between injection and blow stations following a rectilinear path, e.g. shuttle-type
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3032—Preforms or parisons made of several components having components being injected
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3041—Preforms or parisons made of several components having components being extruded
    • 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
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7158—Bottles

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)

Description

Es ist bekannt, Hohlkörper aus organischen thermoplastischen Massen herzustellen, indem man aus der warmplastischen Masse in einer Form einen Vorformling herstellt, ihn in eine zweite Form ausstößt, diese Form schließt und den" \torformting gegen die Formwandung hin aufbläst. It is known, hollow bodies made of organic thermoplastic masses to produce a preform from the warm plastic mass in a mold produces, ejects it into a second form, closes this form and the "\ torformting inflates against the wall of the mold.

Es wurde nun -gefunden, daß man diese Arbçitsweise in besonders vorteilhafter Weise ausführen kann, wenn man eine mehrteilige Form für den Hohlkörper verwendet, bei der der Boden bei geöffneter Form als Verschluß der Form für den Vorformling dient und beim Ausstoßen des Vorformlings in seine Bodenstellung zurückgeht. Die Arbeitsweise sei an Hand der Abbildungen näher erläutert. It has now been found that this way of working is particularly advantageous Way, if you use a multi-part mold for the hollow body, in which the bottom when the mold is open acts as a closure of the mold for the preform serves and returns to its bottom position when the preform is ejected. the The way of working is explained in more detail using the illustrations.

Die warmplastische Masse wird zweckmäßig durch eine enge Düse ähnlich wie beim Strangpreß- oder Spritzgußverfahren in einer geschlossenen Form I zu einem Vorformling verformt. Die Bodenplatte 3 der mehrteiligen Form 2 für den'endgültigen Hohlkörper ist gegen den unteren Teil der Form für den Vorformling hin bewegbar und dient als Abschluß dieser Form. The warm plastic mass is expediently similar through a narrow nozzle as in the extrusion or injection molding process in a closed mold I into one Deformed preform. The base plate 3 of the multi-part mold 2 for the final The hollow body can be moved towards the lower part of the mold for the preform and serves as the end of this form.

Bei geöffneter Form für den endgültigen Hohlkörper ist die Bodenplatte 3 fest gegen das Mundstück der Strangpresse für den Vorformling gedrückt und schließt diese ab, so daß sich der Vorformling bilden kann. Mit der gleichen Geschwindigkeit, mit der der Vorformling dann ausgestoßen wird, geht die Bodenplatte 3 in ihre ursprüngliche Lage zurück (Abb. 2) und die Form für den endgültigen Hohlkörper schließt sich. Der Vorformling wird dabei in diese Form gedrückt. Er,, wird nun mittels eines Gases, Dampfes oder gegebenenfalls auch einer Flüssigkeit aufgeblasen, bis er sich an die inneren \1ttandungen der Form fest anlegt. Danach wird die Form auseinandergeklappt, Ider'en'tstandene Hohlkörper ausgestoßen, und die Bodenplatte 3 bewegt sich wiederum gegen die Form für den Vorformling und schließt diese ab. Nunmehr kann sich dieser Vorgang wiederholen.When the mold is open for the final hollow body, the bottom plate is 3 pressed firmly against the mouthpiece of the extruder for the preform and closes this off so that the preform can form. At the same speed with which the preform is then ejected, the base plate 3 returns to its original position Position back (Fig. 2) and the mold for the final hollow body closes. The preform is pressed into this shape. He ,, is now by means of a gas, Vapor or, if necessary, a liquid inflated until it adheres to the inner \ 1ttandungen the form is firmly attached. Then the form is unfolded, The hollow body which was not formed is ejected, and the base plate 3 moves again against the mold for the preform and closes it. Now this can Repeat process.

In manchen Fällen hat es sich als vorteilhaft herausgestellt, an der Bodenplatte eine Heizvorrichtung 4 anzuordnen, damit der Unterteil des Vorformlings nicht zu früh erstarrt. pATENTANSPRE CH: Verfahren zur Herstellung von Hohlkörpern aus organischen thermoplastisehen Massen, bei dem man aus der warmplastischen Masse in einer Form einen Vorformling herstellt, ihn in eine zweite Form ausstößt, diese Form schließt und den Vorformling gegen die Formwandung hin aufbläst, dadurch gekennzeichnet, daß die Bodenplatte (3) der mehrteiligen Form für den Hohlkörper bei geöffneter Form als Verschluß des Mundstückes der Strangpresse für den Vorformling dient und mit etwa der gleichen Geschwindigkeit, mit welcher der Vorformling ausgestoßen wird. in ihre Bodenstellung zurückgeht. In some cases it has been found to be beneficial to the bottom plate to arrange a heating device 4, so that the lower part of the preform not frozen too early. PATENT ANSPRE CH: Process for the production of hollow bodies from organic thermoplastic masses, in which one from the warm plastic mass produces a preform in one form and ejects it into a second form, this one The mold closes and the preform inflates against the mold wall, characterized in that that the base plate (3) of the multi-part mold for the hollow body when open Form serves as a closure of the mouthpiece of the extruder for the preform and at about the same speed as the preform is ejected. returns to its ground position.

Claims (1)

Angezogene Druckschriften: Deutsche Patentschrift Nur. 529 4 Attached publications: German patent specification only. 529 4
DEB1581A 1949-12-07 1950-01-17 Process for the production of hollow bodies Expired DE844214C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE692590X 1949-12-07

Publications (1)

Publication Number Publication Date
DE844214C true DE844214C (en) 1952-07-17

Family

ID=6603227

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB1581A Expired DE844214C (en) 1949-12-07 1950-01-17 Process for the production of hollow bodies

Country Status (2)

Country Link
DE (1) DE844214C (en)
GB (1) GB692590A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1004207B (en) * 1953-02-09 1957-03-14 Oesterreichische Kunststoff Pr Fridge housing or similarly constructed, box-shaped furniture and process for its production
DE1200514B (en) * 1963-10-16 1965-09-09 Dynamit Nobel Ag Method and device for influencing the cross-sectional dimensions of a hose, pipe, rod profile or the like, which is preferably exactly vertically extruded downwards, made of thermoplastic material
DE1278732B (en) * 1958-10-06 1968-09-26 Owens Jllinois Inc Method and device for forming hollow bodies

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2954588A (en) * 1953-09-21 1960-10-04 Owens Illinois Glass Co Method of forming hollow plastic articles
US2936481A (en) * 1954-02-04 1960-05-17 Plax Corp Blow molding of hollow plastic ware
NL261052A (en) * 1954-07-14 1964-05-11 Brockway Glass Co Inc Method and device for manufacturing products from plastic
US2966702A (en) * 1958-10-03 1961-01-03 Owens Illinois Glass Co Method of and apparatus for making plastic articles
US3001239A (en) * 1958-11-28 1961-09-26 Owens Illinois Glass Co Method for blowing parisons
US3110928A (en) * 1960-08-11 1963-11-19 Eugene G Engman Apparatus for making large hollow articles
US3330894A (en) * 1963-09-10 1967-07-11 Emery I Valyi Method for molding articles
US3349155A (en) * 1966-11-22 1967-10-24 Emery I Valyi Method and apparatus for molding plastic bottles
US3881854A (en) * 1973-05-10 1975-05-06 Rainville Company Inc Molding apparatus with neck-gated mold
WO1997016293A1 (en) * 1995-10-31 1997-05-09 Takaoka Seiko Co., Ltd. Valve gate type injection molding method and apparatus therefor
GB0701210D0 (en) * 2007-01-23 2007-02-28 Leafgreen Ltd Moulding apparatus and method
US8747728B2 (en) 2011-05-24 2014-06-10 Abbott Cardiovascular Systems Inc. Method and system for manufacturing a polymer endoprosthesis by injection molding and blow molding

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE529469C (en) * 1931-07-13 Int Galalith Ges Hoff & Co Process for the production of molded casein horns

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE529469C (en) * 1931-07-13 Int Galalith Ges Hoff & Co Process for the production of molded casein horns

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1004207B (en) * 1953-02-09 1957-03-14 Oesterreichische Kunststoff Pr Fridge housing or similarly constructed, box-shaped furniture and process for its production
DE1278732B (en) * 1958-10-06 1968-09-26 Owens Jllinois Inc Method and device for forming hollow bodies
DE1200514B (en) * 1963-10-16 1965-09-09 Dynamit Nobel Ag Method and device for influencing the cross-sectional dimensions of a hose, pipe, rod profile or the like, which is preferably exactly vertically extruded downwards, made of thermoplastic material

Also Published As

Publication number Publication date
GB692590A (en) 1953-06-10

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