DE3639269A1 - Blow moulding machine with a device for cutting off the wastes from blow moulded hollow bodies - Google Patents

Blow moulding machine with a device for cutting off the wastes from blow moulded hollow bodies

Info

Publication number
DE3639269A1
DE3639269A1 DE19863639269 DE3639269A DE3639269A1 DE 3639269 A1 DE3639269 A1 DE 3639269A1 DE 19863639269 DE19863639269 DE 19863639269 DE 3639269 A DE3639269 A DE 3639269A DE 3639269 A1 DE3639269 A1 DE 3639269A1
Authority
DE
Germany
Prior art keywords
blow
punch
punching
moulding machine
mask
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.)
Withdrawn
Application number
DE19863639269
Other languages
German (de)
Inventor
Markus Dipl Ing Spoetzl
Gerhard Klein
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.)
Mannesmann Demag Krauss Maffei GmbH
Original Assignee
Krauss Maffei AG
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 Krauss Maffei AG filed Critical Krauss Maffei AG
Priority to DE19863639269 priority Critical patent/DE3639269A1/en
Publication of DE3639269A1 publication Critical patent/DE3639269A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42Component parts, details or accessories; Auxiliary operations
    • B29C49/72Deflashing outside the mould

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

In a blow moulding machine, the flash parts of the hollow body inflated in the blow mould are cut off in the downstream punching mask by means of punching knives. To reduce the retooling outlay for converting the blow moulding machine from one blow-moulded product to another, it is proposed to combine the punching knives with their mounting and guiding elements and the punching mask into a constructional unit which can be exchanged as a whole. <IMAGE>

Description

Die Erfindung betrifft eine Blasformmaschine gemäß Oberbegriff des Anspruchs 1.The invention relates to a blow molding machine according to the preamble of claim 1.

Bei bekannten Vorrichtungen dieser Art werden die in der Blas­ form geblasenen Hohlkörper von einer Stanzmaske übernommen, die an den Stellen des Hohlkörpers, an denen sich abzutrennende Ab­ fälle, wie z. B. Hals-, Griff- und Bodenbutzen, befinden, Aus­ nehmungen für den Durchtritt der Stanzmesser aufweisen. Nach­ teilig ist dabei, daß bei einer Umstellung auf ein anderes Blasprodukt sowohl die Stanzmasken als auch die Stanzmesser je­ weils gesondert auszuwechseln sind. Da die Stanzmesser maschi­ nengestellfest angeordnet sind, ergibt sich ferner der Nach­ teil, daß die Stanzmesser bei jeder Umrüstung der Blasformma­ schine auf die Stanzmasken einjustiert werden müssen.In known devices of this type, those in the blow shape-blown hollow body taken from a punch mask that at the locations of the hollow body where the Ab to be separated cases such as B. neck, grip and floor slugs are located, off have recesses for the passage of the punching knife. After Part of it is that when switching to another Blown product both the cutting masks and the cutting knives each because they have to be replaced separately. Since the punching knife is machi Are arranged fixed to the frame, there is also the after part that the punch knife every time the blow molding must be adjusted to the punching masks.

Aufgabe der Erfindung ist es, eine Transportvorrichtung der ge­ nannten Art zu schaffen, die bei der Umrüstung der Blasformma­ schine von einem Blasprodukt auf ein anderes nur einen geringen Umstellungsaufwand erfordert. The object of the invention is to provide a transport device of the ge called type to create, when converting the blow molding Shine from one blow product to another is only a small one Changeover effort required.  

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale aus dem Anspruch 1 gelöst.This object is achieved by the characterizing Features solved from claim 1.

Die Erfindung wird im folgenden anhand eines Ausführungsbei­ spiels näher erläutert.The invention is illustrated below with the aid of an embodiment explained in more detail.

Es zeigt:It shows:

Fig. 1 die Ansicht auf die Trennfugen einer Blasformmaschine mit davor angeordneter Stanzmaskeneinheit und damit verbunde­ ner Stanzmessereinrichtung, FIG. 1 shows a view of the joints of a blow molding machine with front arranged matte unit and in related punching knife means

Fig. 2 die Draufsicht auf die Stanzmaskeneinheit nach Fig. 1 und Fig. 2 is a plan view of the punch mask unit according to Fig. 1 and

Fig. 3 die Schnittansicht gemäß der Schnittlinie A-A in Fig. 2. Fig. 3 is a sectional view according to the section line AA in FIG. 2.

Die Fig. 1 bis 3 zeigen eine Blasform mit zwei Blasformhälf­ ten 1 und 2 sowie eine Stanzmaske mit zwei Stanzmaskenhälften 3 und 4 in geschlossenem Zustand. An der Stanzmaskenhälfte 4 sind zwei Führungssäulen 5 und 6 befestigt, die eine Trägerplatte 7 für ein oberes und ein unteres Stanzmesser 8 und 9 durchsetzen. An der Trägerplatte 7 ist ferner der Zylinder 10 einer An­ triebseinheit für die Stanzmesser 8 und 9 befestigt, in dem ein Kolben (nicht dargestellt) geführt ist, dessen Kolbenstange 11 fest mit der Stanzmaskenhälfte 4 verschraubt ist. An der Stanz­ maskenhälfte 3 ist ein Gegenmesser 12 befestigt, das dem unte­ ren Stanzmesser 9 zugeordnet ist. Figs. 1 to 3 show a blow molding mold having two Blasformhälf th 1 and 2 and a punching mask with two matte halves 3 and 4 in the closed state. On the punch mask half 4 , two guide columns 5 and 6 are attached, which pass through a carrier plate 7 for an upper and a lower punch knife 8 and 9 . On the support plate 7 , the cylinder 10 is also attached to a drive unit for the punching knives 8 and 9 , in which a piston (not shown) is guided, the piston rod 11 of which is firmly screwed to the punch mask half 4 . On the punch mask half 3 , a counter knife 12 is attached, which is assigned to the punch punch 9 unte ren.

In Fig. 3 ist in strichpunktierten Linien ein geblasener Hohl­ körper in der Form einer Flasche 13 dargestellt, an der sich an dessen Boden ein Bodenbutzen 14 und an dessen Halsteil ein Halsbutzen 15 befinden. Die Flasche 13 ist teilweise auch in Fig. 1 zu ersehen, in der in strichpunktierten Linien die vor­ derste Stellung der Stanzmesser 8 und 9 sowie der Trägerplatte 7 und des Zylinders 10 dargestellt sind. In dieser Stellung der Stanzmesser sind der Halsbutzen (15) und der Bodenbutzen 14 be­ reits entfernt.In Fig. 3, a blown hollow body in the form of a bottle 13 is shown in dash-dotted lines, on the bottom of which there is a floor slug 14 and on the neck part of a neck slug 15 . The bottle 13 can also be seen in part in FIG. 1, in which the dotted lines 8 and 9 as well as the carrier plate 7 and the cylinder 10 are shown in dash-dotted lines. In this position, the punch knife, the neck piece ( 15 ) and the bottom piece 14 are already removed.

Der Zylinder 10 ist vorzugsweise ein Druckluftzylinder der über eine flexible Druckluftleitung (nicht dargestellt) angesteuert werden kann.The cylinder 10 is preferably a compressed air cylinder which can be controlled via a flexible compressed air line (not shown).

Die mit den Bezugszeichen 3 bis 12 versehenen Bauteile stellen erfindungsgemäß eine als Ganzes auswechselbare Baueinheit dar, durch die der Umrüstvorgang einer Blasformmaschine erheblich erleichtert und verkürzt werden kann. According to the invention, the components provided with the reference numerals 3 to 12 represent a unit which can be replaced as a whole and by means of which the changeover process of a blow molding machine can be considerably simplified and shortened.

In einer vorteilhaften Ausführungsform umfaßt die die Stanzmas­ ken und die Stanzmesser enthaltende Baueinheit auch die Blas­ form, wodurch für eine Anzahl von Funktionseinheiten nur ein Umrüstvorgang durchzuführen ist.In an advantageous embodiment, it comprises the punching dies ken and the unit containing the punching knife also the blow form, which makes for a number of functional units only one Conversion process must be carried out.

Claims (3)

1. Blasformmaschine mit einer Stanzmaske zum Abtrennen der Ab­ fälle eines oder mehrerer in einer Blasform geblasener und von der Stanzmaske übernommener Hohlkörper mittels einer oder mehrerer Stanzmesser, dadurch gekenn­ zeichnet, daß die Stanzmaske (3, 4) und die Stanz­ messer (8, 9) mit den den Stanzmessern zugehörigen Halte­ rungs- und Führungselementen eine als Block austauschbare Baueinheit bilden.1. Blow molding machine with a punch mask for separating the cases from one or more blown in a blow mold and taken from the punch mask by means of one or more punch knives, characterized in that the punch mask ( 3 , 4 ) and the punch knife ( 8 , 9 ) form with the punching knives holding and guiding elements an interchangeable unit as a block. 2. Blasformmaschine nach Anspruch 1, dadurch ge­ kennzeichnet, daß die Baueinheit eine mit Druckmedium betreibbare Antriebseinheit (10) für die Stanzmesser (8, 9) aufweist.2. Blow molding machine according to claim 1, characterized in that the structural unit has a drive unit which can be operated with pressure medium ( 10 ) for the punching knives ( 8 , 9 ). 3. Blasformmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß an der Baueinheit die Blasform als integraler Bestandteil angeordnet ist.3. Blow molding machine according to claim 1 or 2, characterized characterized in that the unit Blow mold is arranged as an integral part.
DE19863639269 1986-11-17 1986-11-17 Blow moulding machine with a device for cutting off the wastes from blow moulded hollow bodies Withdrawn DE3639269A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19863639269 DE3639269A1 (en) 1986-11-17 1986-11-17 Blow moulding machine with a device for cutting off the wastes from blow moulded hollow bodies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863639269 DE3639269A1 (en) 1986-11-17 1986-11-17 Blow moulding machine with a device for cutting off the wastes from blow moulded hollow bodies

Publications (1)

Publication Number Publication Date
DE3639269A1 true DE3639269A1 (en) 1988-05-26

Family

ID=6314148

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19863639269 Withdrawn DE3639269A1 (en) 1986-11-17 1986-11-17 Blow moulding machine with a device for cutting off the wastes from blow moulded hollow bodies

Country Status (1)

Country Link
DE (1) DE3639269A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10245414A1 (en) * 2002-09-28 2004-04-15 Friedrich H. Weischede Formenbau Gmbh Punching equipment for removal of shoulder waste during thermoplastic container production has a punch to shear waste part from container and a holder which deposits waste part on conveyer
DE10245413A1 (en) * 2002-09-28 2004-04-15 Friedrich H. Weischede Formenbau Gmbh Punching equipment for removal of handle waste during hollow thermoplastic container production has a swiveling punch arm and a holder which receives waste and deposits it on a conveyer
DE102004006079B3 (en) * 2004-02-07 2005-07-14 Friedrich H. Weischede Formenbau Gmbh Removal unit for waste from a thermoplastic moulding, comprises primary and secondary stamping units with stamping arms, and receiving units

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US438769A (en) * 1890-10-21 Tag-holder
DE1604578A1 (en) * 1966-02-25 1970-04-30 Kautex Werke Gmbh Method and device for producing hollow bodies made of thermoplastic material and provided with one or more openings
DE1704035A1 (en) * 1962-07-25 1971-05-06 Stefan Fischer Device for the production of hollow bodies from thermoplastics
DE2016994B2 (en) * 1970-04-09 1972-08-24 Mehnert, Johannes, 5201 Menden DEVICE FOR CREATING AT LEAST ONE OPENING IN PLASTIC HOLLOW BODIES
FR2222193A2 (en) * 1973-03-21 1974-10-18 Sidel Sa Cutters for blow moulding tool - comprosing split window blades with minimum traverse reciprocation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US438769A (en) * 1890-10-21 Tag-holder
DE1704035A1 (en) * 1962-07-25 1971-05-06 Stefan Fischer Device for the production of hollow bodies from thermoplastics
DE1604578A1 (en) * 1966-02-25 1970-04-30 Kautex Werke Gmbh Method and device for producing hollow bodies made of thermoplastic material and provided with one or more openings
DE2016994B2 (en) * 1970-04-09 1972-08-24 Mehnert, Johannes, 5201 Menden DEVICE FOR CREATING AT LEAST ONE OPENING IN PLASTIC HOLLOW BODIES
FR2222193A2 (en) * 1973-03-21 1974-10-18 Sidel Sa Cutters for blow moulding tool - comprosing split window blades with minimum traverse reciprocation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DE-Buch: VDI-Verlag GmbH: Kunststofftechnik, Der Blasformbetrieb, 1982, S.,183-211 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10245414A1 (en) * 2002-09-28 2004-04-15 Friedrich H. Weischede Formenbau Gmbh Punching equipment for removal of shoulder waste during thermoplastic container production has a punch to shear waste part from container and a holder which deposits waste part on conveyer
DE10245413A1 (en) * 2002-09-28 2004-04-15 Friedrich H. Weischede Formenbau Gmbh Punching equipment for removal of handle waste during hollow thermoplastic container production has a swiveling punch arm and a holder which receives waste and deposits it on a conveyer
DE10245414B4 (en) * 2002-09-28 2004-09-23 Friedrich H. Weischede Formenbau Gmbh Device for removing waste parts resulting from the molding of thermoplastic plastic on the molded hollow body
DE10245413B4 (en) * 2002-09-28 2006-06-29 Friedrich H. Weischede Formenbau Gmbh Device for removing in the course of molding hollow bodies made of thermoplastic material on the molded hollow bodies resulting waste parts
DE102004006079B3 (en) * 2004-02-07 2005-07-14 Friedrich H. Weischede Formenbau Gmbh Removal unit for waste from a thermoplastic moulding, comprises primary and secondary stamping units with stamping arms, and receiving units

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