DE2614451C2 - Device for injection blow molding of hollow bodies - Google Patents

Device for injection blow molding of hollow bodies

Info

Publication number
DE2614451C2
DE2614451C2 DE19762614451 DE2614451A DE2614451C2 DE 2614451 C2 DE2614451 C2 DE 2614451C2 DE 19762614451 DE19762614451 DE 19762614451 DE 2614451 A DE2614451 A DE 2614451A DE 2614451 C2 DE2614451 C2 DE 2614451C2
Authority
DE
Germany
Prior art keywords
blow molding
temperature control
preform
control device
injection molding
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
DE19762614451
Other languages
German (de)
Other versions
DE2614451A1 (en
Inventor
Helmut 5206 Neunkirchen Scharrenbroich
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.)
Battenfeld-Fischer Blasformtechnik 5204 Lohm GmbH
Original Assignee
Battenfeld Fischer Blasformtechnik GmbH
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 Battenfeld Fischer Blasformtechnik GmbH filed Critical Battenfeld Fischer Blasformtechnik GmbH
Priority to DE19762614451 priority Critical patent/DE2614451C2/en
Priority to US05/774,430 priority patent/US4102626A/en
Priority to FR7707919A priority patent/FR2343588A1/en
Publication of DE2614451A1 publication Critical patent/DE2614451A1/en
Application granted granted Critical
Publication of DE2614451C2 publication Critical patent/DE2614451C2/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
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/64—Heating or cooling preforms, parisons or blown articles
    • B29C49/6409—Thermal conditioning of preforms
    • 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
    • B29C45/72—Heating or cooling
    • B29C45/7207—Heating or cooling of the moulded articles
    • 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
    • B29C49/4205—Handling means, e.g. transfer, loading or discharging means
    • 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
    • B29K2105/25—Solid
    • B29K2105/253—Preform

Description

Die Erfindung betrifft eine Vorrichtung zum Spritzblasformen von Hohlkörpern, insbesondere von Flasehen, aus thermoplastischem Kunststoff, mit einer Spritzgießeinrichtung für einen Vorformling, einer im Abstand zu dieser angeordneten Blasformeinrichtiing, einer zwischen der Spritzgießeinrichtung und der Blasformeinrichtung angeordneten, eine annähernd hohlzy- jo linderförmigen Umfangswand sowie eine Bodenwand aufweisenden axial geteilten Temperiereinrichtung und mit einem in die Spritzgießeinrichtung, in die Blasformeinrichtung und in die Temperiereinrichtung mittels einer Transporteinrichtung eintauchbaren Formdorn.The invention relates to a device for injection blow molding of hollow bodies, in particular of bottles, Made of thermoplastic material, with an injection molding device for a preform, one im Distance to this arranged blow molding device, one arranged between the injection molding device and the blow molding device, an approximately hollow cylinder Linder-shaped circumferential wall and a bottom wall having axially divided temperature control device and with one in the injection molding device, in the blow molding device and in the temperature control device by means of a Transport device, immersible mandrel.

Eine derartige Vorrichtung ist bereits durch die DE-OS 24 00 951 bekannt geworden. Im Hauptpatent Nr. 26 10 258 sind die einer Vorrichtung nach der DE-OS 24 00 951 anhaftenden Nachteile beschrieben. Nach dem Hauptpatent werden diese Nachteile dadurch überwunden, daß die axial ungeteilte Temperiereinrichtung in der Eintauchrichtung des Formdornes gegen den Widerstand wenigstens eines Federgliedes verschiebbar ist.Such a device is already known from DE-OS 24 00 951. In the main patent no. 26 10 258 the associated disadvantages of a device according to DE-OS 24 00 951 are described. To the main patent, these disadvantages are overcome in that the axially undivided temperature control device displaceable in the immersion direction of the mandrel against the resistance of at least one spring member is.

Beim Betreiben einer Vorrichtung nach dem Hauptpatent hat es sich insbesondere bei sehr langen Vorformlingen gezeigt, daß große axiale Verschiebewege des Formdornes mit dem Vorformling nötig sind, und daß eine Vorrichtung nach dem Hauptpatent für den Betrieb mit sehr langen Vorformlingen eine große axia-Ie Ausdehnung aufweist.When operating a device according to the main patent, this has been the case in particular with very long preforms shown that large axial displacement paths of the mandrel with the preform are necessary, and that a device according to the main patent for operation with very long preforms has a large axia-Ie Has expansion.

Der Erfindung lag die Aufgabe zugrunde, eine Vorrichtung nach dem Hauptpatent so zu gestalten, daß ein kurzer axialer Verschiebeweg des Formdornes mit dem Vorformling auch beim Betrieb mit sehr langen Vorformlingen erzielt werden kann, und daß die axiale Ausdehnung der Vorrichtung ebenfalls für den Betrieb mit sehr langen Vorformlingen klein gehalten werden kann.The invention was based on the object to design a device according to the main patent so that a short axial displacement path of the mandrel with the preform even when operating with very long preforms can be achieved, and that the axial expansion of the device is also suitable for operation with very long preforms can be kept small.

Die Erfinder haben erkannt, daß die Vorteile der axial federnd nachgiebigen Lagerung auch für axial geteilte f>o Tcmpcriervorrichtungcn sehr /weckmäßig sind und hier die gleichen Vorteile bringen wie die axial ungeteilten Formen. The inventors have recognized that the advantages of the axially resiliently resilient mounting are also very wary for axially divided f> o Tcmpcriervorrichtungcn and bring the same advantages here as the axially undivided forms.

Die Nachteile einer Vorrichtung nach der DF.OS 24 (X) 951 treten bei einer crfindungsgcmiiU geteilten hl Teinperierform nicht ;iuf. da die Temperierfomi im Uetrieb während eines ersten Schrilles geschlossen wird, wobei zwischen Temperierform und Vorformling einThe disadvantages of a device according to the DF.OS 24 (X) 951 occur in a crfindungsgcmiiU divided St. Tapered form not; iuf. because the temperature control mode is in operation is closed during a first shrill, with a temperature control mold and preform

Claims (1)

11 Spiel eingehalten wird, so daß der Vorformling nichtGame is observed so that the preform does not Patentanspruch: beschädigt werden kann.Claim: can be damaged. Während eines zweiten Schrittes wird wie nach demDuring a second step, as after Vorrichtung zum Spritzblasformen von Hohlkör- Hauptpatent der Vorformling gegen die Federkraft in pern, insbesondere von Raschen, aus thermoplaste 5 die nunmehr geschlossene Form eingeschoben. Daschem Kunststoff, mit einer Spriizgießeinrichuing durch können auch hier Toleranzen in den Abmessunfür einen Vorformling, einer im Abstand zu dieser gen der Vorformlinge ausgeglichen werden, wie beiangeordneten Blasformeinrichtung, einer zwischen spiclsweisc durch Schrumpfen der Vorformlinge beim der Spritzgießeinrichtung und der Blasformeinriich- Abkühlen entstandene Untermaße. Beim Auftreten dertung angeordneten, eine annähernd hohlzylindeiiör- io artiger Untermaße geht bei den bekannten Einrichtunmige Umfangswand sowie eine Bodenwand aufwei- gen der Kontakt zur Temperierform verloren, während senden axial geteilten Temperiereinrichtung und mit bei der Ausbildung nach der Erfindung auch dann noch einem in die Spritzgießeinrichtung, in die Blasform- ein enger Kontakt aufrechterhalten bleibt, so daß immer einrichtung und in die Temperiereinrichtung mittels für einen einwandfreien Wärmeübergang Sorge getraeiner Transporteinrichtung eintauchbaren Foirm- is gen ist dorn, dadurch gekennzeichnet, daß die Temperiereinrichtung in der Eintauchrichtung des Formdornes gegen den Widerstand wenigstens eines Federgliedes verschiebbar istDevice for injection blow molding of hollow body main patent of the preform against the spring force in pern, in particular by Raschen, inserted from thermoplastics 5, the now closed form. Daschem Plastic, with an injection molding device, allows tolerances in the dimensions here as well a preform, one at a distance to this gene of the preforms are balanced, as arranged Blow molding device, one between spiclsweisc by shrinking the preforms during the injection molding device and the blow molding unit cooling created undersize. When the warning occurs arranged, an approximately hohlzylindeiiör- io-like undersize goes with the known Einrichtunmige The peripheral wall and a bottom wall lose contact with the tempering mold while send axially split temperature control device and with the training according to the invention even then one in the injection molding machine, one in the blow mold - close contact is maintained so that always device and in the temperature control device by means of a correct heat transfer care getraeiner Transport device is immersible foirm- is mandrel, characterized in that the temperature control device in the immersion direction of the Shaping mandrel is displaceable against the resistance of at least one spring member 2020th
DE19762614451 1976-03-11 1976-04-03 Device for injection blow molding of hollow bodies Expired DE2614451C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19762614451 DE2614451C2 (en) 1976-04-03 1976-04-03 Device for injection blow molding of hollow bodies
US05/774,430 US4102626A (en) 1976-03-11 1977-03-04 Apparatus for manipulating parisons in blow molding machines
FR7707919A FR2343588A1 (en) 1976-03-11 1977-03-11 DEVICE FOR MANUFACTURING HOLLOW BODIES BY THE EXTRUSION-BLOWING PROCESS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762614451 DE2614451C2 (en) 1976-04-03 1976-04-03 Device for injection blow molding of hollow bodies

Publications (2)

Publication Number Publication Date
DE2614451A1 DE2614451A1 (en) 1977-10-13
DE2614451C2 true DE2614451C2 (en) 1984-10-18

Family

ID=5974361

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19762614451 Expired DE2614451C2 (en) 1976-03-11 1976-04-03 Device for injection blow molding of hollow bodies

Country Status (1)

Country Link
DE (1) DE2614451C2 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2400951A1 (en) * 1974-01-09 1975-07-17 4 P Verpackungen Gmbh METHOD AND DEVICE FOR THE MANUFACTURING OF PLASTIC BOTTLES

Also Published As

Publication number Publication date
DE2614451A1 (en) 1977-10-13

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Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: BATTENFELD-FISCHER BLASFORMTECHNIK GMBH, 5204 LOHM

8110 Request for examination paragraph 44
8125 Change of the main classification

Ipc: B29D 23/03

AF Is addition to no.

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D2 Grant after examination
8364 No opposition during term of opposition
8340 Patent of addition ceased/non-payment of fee of main patent