DE9107812U1 - Device for the discontinuous production of a preform for blow molding - Google Patents

Device for the discontinuous production of a preform for blow molding

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Publication number
DE9107812U1
DE9107812U1 DE9107812U DE9107812U DE9107812U1 DE 9107812 U1 DE9107812 U1 DE 9107812U1 DE 9107812 U DE9107812 U DE 9107812U DE 9107812 U DE9107812 U DE 9107812U DE 9107812 U1 DE9107812 U1 DE 9107812U1
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Germany
Prior art keywords
ring
preform
connecting channel
channel
flow channel
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Expired - Lifetime
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DE9107812U
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German (de)
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Individual
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Priority to DE9107812U priority Critical patent/DE9107812U1/en
Publication of DE9107812U1 publication Critical patent/DE9107812U1/en
Priority to DE4136766A priority patent/DE4136766A1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/695—Flow dividers, e.g. breaker plates
    • B29C48/70—Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows
    • B29C48/705—Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows in the die zone, e.g. to create flow homogeneity
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/19—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their edges
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • B29C48/336—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/475—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pistons, accumulators or press rams
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated

Landscapes

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

Description

R 204aR204a

Richter, Günter, Dipl.-Ing. Johannistal 12, 5230 AltenkirchenRichter, Günter, Dipl.-Ing. Johannistal 12, 5230 Altenkirchen

Vorrichtung zur diskontinuierlichen Herstellung eines Vorformlings für das Blasformen Device for the discontinuous production of a preform for blow molding

Die Erfindung bezieht sich auf eine Vorrichtung zur diskontinuierlichen Herstellung eines schlauchartigen, mehrschichtigen, coextrudierten Vorformlings aus thermoplastischem Kunststoff zur Bildung eines großvolumigen Hohlkörpers mit mehrschichtiger Wandung für das Blasformen, bestehend aus einem axial verschiebbaren, als Coextrusionskopf ausgebildeten Ringkolben mit mindestens zwei der Zufuhr von unterschiedlichen Kunststoffschmelzen dienenden Fließkanalbohrungen mit jeweils einem Ringverteiler, die zunächst in getrennte Ringkanäle und dann in einen gemeinsamen, sich bis auf den Querschnitt eines Ringspeicherraumes erweiternden Fließkanal übergehen.The invention relates to a device for the discontinuous production of a tubular, multi-layer, co-extruded preform made of thermoplastic material for forming a large-volume hollow body with a multi-layer wall for blow molding, consisting of an axially displaceable ring piston designed as a co-extrusion head with at least two flow channel bores serving to supply different plastic melts, each with a ring distributor, which initially merge into separate ring channels and then into a common flow channel that expands to the cross section of a ring storage space.

Um Hohlkörper mit mehrschichtiger Wandung durch einen Blasvorgang mit einem einzigen Ringkolbenspeicher, also ohne großen maschinellen Aufwand herstellen zu können, ist aus dem DE-GM 86 27 713 eine Vorrichtung bekannt, die aus einem in einem Gehäuse axial verschiebbaren, als Coextrusionskopf ausgebildeten Ringkolben besteht. Für jede Materialschicht bzw. Kunststoffschmelze weist der Ringkolben eine etwa radial verlaufende Fließkanalbohrung auf, die in einen Ringverteiler mündet. An jeden Ringverteiler schließt sich ein Ringkanal an, der in einen gemeinsamen FließkanalIn order to be able to produce hollow bodies with multi-layer walls by blowing with a single ring piston accumulator, i.e. without great mechanical effort, a device is known from DE-GM 86 27 713 which consists of an annular piston designed as a coextrusion head that can be moved axially in a housing. For each material layer or plastic melt, the annular piston has an approximately radially running flow channel bore that opens into a ring distributor. Each ring distributor is connected to a ring channel that leads into a common flow channel

übergeht. Dabei erweitert sich der Querschnitt des Fließkanales allmählich auf den Querschnitt eines vom Ringkolben beaufschlagten Ringspeicherraumes.The cross-section of the flow channel gradually expands to the cross-section of a ring storage chamber acted upon by the ring piston.

Insbesondere bei Lager- oder Transportbehältern kommt es vor, daß die äußere Schicht des Vorformlings und damit des späteren Hohlkörpers, beispielsweise zum Schutz gegen UV-Strahlen oder aus optischen Gründen, eine besondere Einfärbung aufweist. Andererseits besteht jedoch der Wunsch, ständig von außen, also ohne besondere Meßeinrichtungen, sehen zu können, wieviel Flüssigkeit sich in dem Transport- oder Lagerbehälter befindet.Particularly in the case of storage or transport containers, it happens that the outer layer of the preform and thus of the subsequent hollow body has a special color, for example to protect against UV rays or for optical reasons. On the other hand, however, there is the desire to be able to constantly see from the outside, i.e. without special measuring devices, how much liquid is in the transport or storage container.

Der Erfindung liegt deshalb die Aufgabe zugrunde, die bekannte Vorrichtung so weiterzubilden, daß damit auch der schlauchartige Vorformling für einen mehrschichtigen Hohlkörper erzeugt werden kann, der einen bereits mit ihm erzeugten, senkrecht zum Hohlkörper verlaufenden Streifen aufweist, über den später am Hohlkörper der Füllstand ohne besondere Meßeinrichtungen erkennbar ist.The invention is therefore based on the object of developing the known device in such a way that the tube-like preform for a multi-layer hollow body can also be produced with it, which has a strip already produced with it, running perpendicular to the hollow body, via which the fill level can later be recognized on the hollow body without special measuring devices.

Zur Lösung dieser Aufgabe wird gemäß der Erfindung bei einer Vorrichtung der eingangs beschriebenen Gattung vorgeschlagen, daß zwischen den Ringkanälen für die beiden äußersten Schichten des Vorformlings ein Verbindungskanal angeordnet ist.To achieve this object, according to the invention, in a device of the type described above, it is proposed that a connecting channel is arranged between the ring channels for the two outermost layers of the preform.

Durch diesen Verbindungskanal wird in der Außenschicht des Vorformlings und damit des späteren Hohlkörpers ein Streifen erzeugt, der aus dem gleichen, durchsichtigen Kunststoff wie die innere Schicht besteht. Dadurch ist es möglich, später jederzeit am gefüllten Hohlkörper den Füllungsgrad ohne Schwierigkeiten mit dem Auge zu erkennen.Through this connecting channel, a strip is created in the outer layer of the preform and thus of the subsequent hollow body, which consists of the same transparent plastic as the inner layer. This makes it possible to later easily determine the degree of filling of the filled hollow body at any time.

Weitere Merkmale einer Vorrichtung gemäß der Erfindung sind in den Ansprüchen 2 und 3 offenbart.Further features of a device according to the invention are disclosed in claims 2 and 3.

Die Erfindung wird nachfolgend anhand eines in einer Zeichnung in vereinfachter Weise dargestellten Ausführungsbeispieles näher erläutert. Dabei zeigenThe invention is explained in more detail below using an embodiment shown in a simplified manner in a drawing.

Fig. 1 einen Schnitt durch eine Vorrichtung gemäß derFig. 1 is a section through a device according to the

Erfindung und
Fig. 2 den Querschnitt eines extrudierten Vorformlings.Invention and
Fig. 2 shows the cross section of an extruded preform.

In der Fig. 1 der Zeichnung ist ein Ringkolbenspeicher bzw. Ringkolbenstaukopf dargestellt, der zur Herstellung mehrschichtiger, coextrudierter, schlauchartiger Vorformlinge aus thermoplastischem Kunststoff zur Bildung großvolumiger, mehrschichtiger Hohlkörper in einer geteilten Blasform dient. Dieser Ringkolbenspeicher bzw. Ringkolbenstaukopf besteht aus einem Speichermantel 1, der in an sich bekannter, nicht dargestellter Weise mit einem an sich bekannten Gehäuse verbunden ist. Der Speichermantel 1 ist ortsfest angeordnet und nimmt einen axial verschiebbaren Ringkolben 2 auf, in dem seinerseits eine Pinole 3 mit einem Düsenpilz 4 axial verschiebbar geführt ist. Zwischen dem Speichermantel 1 und dem Düsenpilz 4 ist ein Düsenspalt 5 ausgebildet, der durch axiale Verschiebung der Pinole 3 geöffnet und geschlossen werden kann. Zur axialen Verschiebung der Pinole 3 ist derselben eine nicht dargestellte, ebenfalls im Gehäuse angeordnete Kolben-Zylinder-Einheit zugeordnet, die beidseitig beaufschlagbar ist.In Fig. 1 of the drawing, a ring piston accumulator or ring piston head is shown, which is used to produce multi-layer, co-extruded, tubular preforms made of thermoplastic material to form large-volume, multi-layer hollow bodies in a split blow mold. This ring piston accumulator or ring piston head consists of a storage casing 1, which is connected to a housing known per se in a manner known per se, not shown. The storage casing 1 is arranged in a fixed position and accommodates an axially displaceable ring piston 2, in which a sleeve 3 with a nozzle mushroom 4 is guided axially displaceably. A nozzle gap 5 is formed between the storage casing 1 and the nozzle mushroom 4, which can be opened and closed by axially displacing the sleeve 3. For the axial displacement of the sleeve 3, a piston-cylinder unit (not shown) is also arranged in the housing and can be acted upon from both sides.

Im dargestellten Ausführungsbeispiel besitzt der Ringkolben 2 zwei sich diametral gegenüberliegend angeordneteIn the illustrated embodiment, the ring piston 2 has two diametrically opposed

Fließkanalbohrungen 6,7, an die jeweils Extruder für die unterschiedlichen Material- bzw. Kunststoffschmelzen angeschlossen sind. Im dargestellten Ausführungsbeispiel wird über die Fließkanalbohrung 6 eine klare bzw. durchsichtige Kunststoffschmelze zugeführt, während über die Fließkanalbohrung 7 eine eingefärbte und damit undurchsichtige Kunststoff schmelze in den Ringkolben gelangt. Jede Fließkanalbohrung 6,7 geht in einen umlaufenden Ringverteiler 8,9 über, an die sich jeweils ein schräg verlaufender Ringkanal 10 bzw. 11 anschließt. Beide Ringkanäle 10,11 gehen in einen in axialer Richtung verlaufenden Fließkanal 12 über, der sich allmählich auf den Querschnitt eines Ringspeicherraumes , dies ist der freie Raum zwischen Speichermantel 1 und Pinole 3, erweitert.Flow channel bores 6,7, to which extruders for the different material or plastic melts are connected. In the embodiment shown, a clear or transparent plastic melt is fed through the flow channel bore 6, while a colored and thus opaque plastic melt enters the ring piston through the flow channel bore 7. Each flow channel bore 6,7 leads into a circumferential ring distributor 8,9, to which a diagonally running ring channel 10 or 11 is connected. Both ring channels 10,11 lead into a flow channel 12 running in the axial direction, which gradually expands to the cross section of a ring storage space, this is the free space between the storage casing 1 and the sleeve 3.

Im dargestellten Ausführungsbeispiel ist in der Zeichnung im linken Teil des Ringkolbens 2 ein in axialer Richtung verlaufender Kanal 13 vorgesehen, der hier den Ringkanal 10 mit dem Ringkanal 11 verbindet. Über diesen Verbindungskanal 13 gelangt ein schmaler Streifen klarer bzw. durchsichtiger Kunststoffschmelze von dem Ringkanal 10 in den Ringkanal 11. Der Querschnitt dieses Verbindungskanales 13 wird entsprechend der Breite des Streifens gewählt, den der zu fertigende Vorformling bzw. spätere Hohlkörper in seiner Außenschicht aufweisen soll.In the embodiment shown, in the drawing, in the left part of the ring piston 2, a channel 13 running in the axial direction is provided, which here connects the ring channel 10 with the ring channel 11. A narrow strip of clear or transparent plastic melt passes from the ring channel 10 into the ring channel 11 via this connecting channel 13. The cross section of this connecting channel 13 is selected according to the width of the strip that the preform to be produced or later hollow body is to have in its outer layer.

In der Fig. 2 ist der Querschnitt durch einen schlauchartigen Vorformling 14 gezeigt, der aus einer Innenschicht 15 ausklarem bzw. durchsichtigem Kunststoff besteht, während die Außenschicht 16 aus eingefärbtem und damit undurchsichtigem Kunststoff gebildet ist. Durch den vorerwähnten Verbindungskanal 13 erstreckt sich die Außenschicht 16 jedoch nicht geschlossen über die InnenschichtFig. 2 shows the cross section through a tube-like preform 14, which consists of an inner layer 15 made of clear or transparent plastic, while the outer layer 16 is made of colored and thus opaque plastic. Due to the aforementioned connecting channel 13, the outer layer 16 does not extend completely over the inner layer.

15, sondern weist eine Unterbrechung 17 auf, die später am geblasenen Hohlkörper einen sogenannten Sichtstreifen bildet. Über diesen Sichtstreifenkann der Füllungsgrad des fertigen Hohlkörpers bzw. Behältersohne besondere Meßgeräte leicht kontrolliert werden.15, but has an interruption 17, which later forms a so-called viewing strip on the blown hollow body. The degree of filling of the finished hollow body or container can be easily checked via this viewing strip without special measuring devices.

In Abänderung des erläuterten Ausführungsbeispieles ist es möglich, in dem Verbindungskanal 13 ein Absperrelement anzuordnen, welches als Nadel oder dergleichen ausgebildet sein kann. Über dieses Absperrelement ist es dann möglich, bedarfsweise den Verbindungskanal 13 freizugeben oder zu sperren.In a modification of the embodiment described, it is possible to arrange a shut-off element in the connecting channel 13, which can be designed as a needle or the like. This shut-off element then makes it possible to open or close the connecting channel 13 as required.

Claims (3)

R 204a Richter, Günter, Dipl.-Ing. Johannistal 12, Altenkirchen SchutzansprücheR 204a Richter, Günter, Dipl.-Ing. Johannistal 12, Altenkirchen Protection claims 1. Vorrichtung zur diskontinuierlichen Herstellung eines schlauchartigen, mehrschichtigen, coextrudierten Vorformlings aus thermoplastischem Kunststoff zur Bildung eines großvolumigen Hohlkörpers mit mehrschichtiger Wandung für das Blasformen, bestehend aus einem axial verschiebbaren, als Coextrusionskopf ausgebildeten Ringkolben mit mindestens zwei der Zufuhr von unterschiedlichen Kunststoffschmelzen dienenden Fließkanalbohrungen mit jeweils einem Ringverteiler, die zunächst in getrennte Ringkanäle und dann in einen gemeinsamen, sich bis auf den Querschnitt eines Ringspeicherraumes erweiternden Fließkanal übergehen, dadurch gekennzeichnet,1. Device for the discontinuous production of a tubular, multi-layer, co-extruded preform made of thermoplastic material to form a large-volume hollow body with a multi-layer wall for blow molding, consisting of an axially displaceable ring piston designed as a co-extrusion head with at least two flow channel bores serving to supply different plastic melts, each with a ring distributor, which first pass into separate ring channels and then into a common flow channel expanding to the cross section of a ring storage space, characterized in that daß zwischen den Ringkanälen (10,11) für die beiden äußersten Schichten des Vorformlings (14) ein Verbindungskanal (13) angeordnet ist. that a connecting channel (13) is arranged between the ring channels (10,11) for the two outermost layers of the preform (14). 2. Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,2. Device according to claim 1,
characterized, daß sich der Verbindungskanal (13) über einen geringen Winkel zwischen den beiden Ringkanälen (10,11) erstreckt. that the connecting channel (13) extends over a small angle between the two ring channels (10,11). 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet,3. Device according to claim 1 or 2, characterized in daß in dem Verbindungskanal (13) ein Absperrelement angeordnet ist.that a shut-off element is arranged in the connecting channel (13).
DE9107812U 1991-06-25 1991-06-25 Device for the discontinuous production of a preform for blow molding Expired - Lifetime DE9107812U1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE9107812U DE9107812U1 (en) 1991-06-25 1991-06-25 Device for the discontinuous production of a preform for blow molding
DE4136766A DE4136766A1 (en) 1991-06-25 1991-11-08 Container of thermoplastic material - has hose-shaped preformed piece with (nearly) opaque container cover of plastic having colour mixt.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE9107812U DE9107812U1 (en) 1991-06-25 1991-06-25 Device for the discontinuous production of a preform for blow molding

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DE9107812U1 true DE9107812U1 (en) 1991-10-24

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0585846A1 (en) * 1992-09-01 1994-03-09 Toyo Seikan Kaisha, Ltd. Multi layer plastic product, method of manufacturing same, and co-extruder
WO1994017980A1 (en) * 1993-02-10 1994-08-18 Sidlaw Flexible Packaging Limited Coextruded multilayer sheet, apparatus for manufacturing the same, and tube made therefrom
WO1998008668A1 (en) * 1996-08-31 1998-03-05 Richter Guenter Drum-like container out of plastic and process and device for its production
EP0925903A1 (en) * 1997-12-26 1999-06-30 Bridgestone Corporation Production of unvulcanized tread rubber for pneumatic tires
EP1095754A1 (en) * 1999-10-28 2001-05-02 gabo Systemtechnik GmbH Plastic Profile
WO2001034366A1 (en) * 1999-11-08 2001-05-17 Parker-Hannifin Corporation Flexible plastic tubing construction having a sight glass window
WO2005097462A1 (en) * 2004-03-30 2005-10-20 Guenter Richter Device for the production of tubular pre-forms with asymmetrical annular pistons
WO2009040009A2 (en) 2007-09-21 2009-04-02 Mauser-Werke Gmbh Method and device for the production of plastic containers

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0585846A1 (en) * 1992-09-01 1994-03-09 Toyo Seikan Kaisha, Ltd. Multi layer plastic product, method of manufacturing same, and co-extruder
WO1994017980A1 (en) * 1993-02-10 1994-08-18 Sidlaw Flexible Packaging Limited Coextruded multilayer sheet, apparatus for manufacturing the same, and tube made therefrom
WO1998008668A1 (en) * 1996-08-31 1998-03-05 Richter Guenter Drum-like container out of plastic and process and device for its production
EP0925903A1 (en) * 1997-12-26 1999-06-30 Bridgestone Corporation Production of unvulcanized tread rubber for pneumatic tires
US6294119B1 (en) 1997-12-26 2001-09-25 Bridgestone Corporation Production of unvulcanized tread rubber for pneumatic tires
EP1095754A1 (en) * 1999-10-28 2001-05-02 gabo Systemtechnik GmbH Plastic Profile
WO2001034366A1 (en) * 1999-11-08 2001-05-17 Parker-Hannifin Corporation Flexible plastic tubing construction having a sight glass window
EP1870221A1 (en) * 2004-03-30 2007-12-26 Günter Richter Device for manufacturing tube-like preforms with asymmetrical ring plunger
WO2005097462A1 (en) * 2004-03-30 2005-10-20 Guenter Richter Device for the production of tubular pre-forms with asymmetrical annular pistons
CN100581784C (en) * 2004-03-30 2010-01-20 京特·里希特 Device for the production of tubular pre-forms with asymmetrical annular pistons
CN101791846A (en) * 2004-03-30 2010-08-04 京特·里希特 Device for the production of multi-layer, co-extruded, tubular pre-forms made from thermoplastic plastic
US7883329B2 (en) 2004-03-30 2011-02-08 Richter Guenter Device for the production of tubular pre-forms with asymmetrical annular pistons
AU2005231575B2 (en) * 2004-03-30 2011-02-24 Bodo Richter Device for the production of tubular pre-forms with asymmetrical annular pistons
CN101791846B (en) * 2004-03-30 2014-09-10 京特·里希特 Device for the production of multi-layer, co-extruded, tubular pre-forms made from thermoplastic plastic
WO2009040009A2 (en) 2007-09-21 2009-04-02 Mauser-Werke Gmbh Method and device for the production of plastic containers
DE102008045971A1 (en) 2007-09-21 2009-04-09 Mauser-Werke Gmbh Method and device for producing plastic containers
WO2009040009A3 (en) * 2007-09-21 2009-08-06 Mauser Werke Gmbh Method and device for the production of plastic containers
US8021597B2 (en) 2007-09-21 2011-09-20 Mauser-Werke Gmbh Method and apparatus for producing plastic containers

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