DE2366020A1 - Fabricating thermoplastic layflat film - in two layers oriented at right angles - Google Patents

Fabricating thermoplastic layflat film - in two layers oriented at right angles

Info

Publication number
DE2366020A1
DE2366020A1 DE19732366020 DE2366020A DE2366020A1 DE 2366020 A1 DE2366020 A1 DE 2366020A1 DE 19732366020 DE19732366020 DE 19732366020 DE 2366020 A DE2366020 A DE 2366020A DE 2366020 A1 DE2366020 A1 DE 2366020A1
Authority
DE
Germany
Prior art keywords
inner mandrel
film
layers
layer
transport roller
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.)
Pending
Application number
DE19732366020
Other languages
German (de)
Inventor
Michio Sudo
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
Priority claimed from JP47063273A external-priority patent/JPS5139678B2/ja
Application filed by Individual filed Critical Individual
Priority to DE19732366020 priority Critical patent/DE2366020A1/en
Publication of DE2366020A1 publication Critical patent/DE2366020A1/en
Pending 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
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
    • B29C48/902—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies internally
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0013—Extrusion moulding in several steps, i.e. components merging outside the die
    • B29C48/0015—Extrusion moulding in several steps, i.e. components merging outside the die producing hollow articles having components brought in contact outside the extrusion 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
    • B29C48/03—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
    • B29C48/16—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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
    • 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
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Laminated Bodies (AREA)

Abstract

In a process for fabricating a laminated cylindrical film with a plastic resin base, the laminated structure consists of three layers, the inner layer being stretch oriented transversely and the outer layer being stretch oriented longitudinally. The median layer is formed from a film having a lower fusion point than the inner and outer layers, and consolidation is brought about by heating to a temp. slightly below the fusion point of the median layer so that it is bonded to the other two layers. The three layers may be extruded from annular concentric orifices, and orientation in perpendicular directions gives greater strength and enables thinner films to be used for a given weight. The three films are extruded from concentric orifices. The outer layer is then stretched longitudinally between two sets of rolls while the inner film is expanded by a rotating mandrel, the film being then cooled rapidly and flattened. The outer and inner layers may be of a high m.pt. polyolefin while the median film may be of e.g. ethylene/vinyl acetate or ethylene/acrylonitrile copolymers.

Description

Dr. Γ "n-rDr. Γ "n-r

: :/öw» so P 27 : / ÖW "so P 27

S17 -Ä-usscheidungsanmeldungS 17 - divorce registration

Micbio S u d ο , c/o Nikko Resin Co. Ltd., Fujikoshi Bldg., No. 23-7 j 5-chome Higashi Gotanda, Shinagawa-ku, Tokyo / JapanMicbio S u d ο, c / o Nikko Resin Co. Ltd., Fujikoshi Bldg., No. 23-7 j 5-chome Higashi Gotanda, Shinagawa-ku, Tokyo / Japan

Vorrichtung zum Abziehen eines Folienschlauches über einen InnendornDevice for pulling off a film tube over an internal mandrel

Die Erfindung betrifft eine Vorrichtung nach dem Oberbegriff des Patentanspruchs 1„The invention relates to a device according to the preamble of claim 1 "

Bekannte Vorrichtungen der erwähnten Art ermöglichen lediglich das Abziehen eines lOlienschlauchstückes von begrenzter Länge über einen Innendorn, wobei die maximale Länge des Folienschlauchstücke s durch eine Halterung für den Innendorn festgelegt wird.Known devices of the type mentioned only allow pulling off a piece of olefin tubing of limited length via an inner mandrel, the maximum length of the tubular film s is fixed by a bracket for the inner mandrel.

Aufgabe der Erfindung ist die Schaffung einer demgegenüber verbesserten Vorrichtung, welche das Abziehen zumindest eines Folienschlauches von unbegrenzter Länge über einen Innendorn ermöglicht. Erreicht wird dies durch die kennzeichnenden Merkmale des Patentanspruchs 1.The object of the invention is to create a comparatively improved one Device which allows the removal of at least one tubular film of unlimited length over an internal mandrel enables. This is achieved by the characterizing features of claim 1.

Durch die Weiterbildung nach dem Patentanspruch 2 wird eine sichere Halterung des Innendornes auch bei hohler Ausbildung ermöglicht. ' - , The development according to claim 2 enables the inner mandrel to be held securely even in the case of a hollow design. '-,

Durch die Weiterbildung nach dem Patentanspruch 3 ergibt sichThe development according to claim 3 results

709820/0837709820/0837

eine besonders günstige und selbstzentrierende Anordnung des Innendornes, insbesondere auch in Fällen, bei denen sich der Folienschlauch noch einem plastisch deformierbaren Zustand befindet»a particularly favorable and self-centering arrangement of the Inner mandrel, especially in cases in which the film tube is still in a plastically deformable state is located »

Durch die Weiterbildung nach dem Patentanspruch 4- wird die Hintereinander bzw. Untereinanderanordnung mehrerer Innendorne ermöglichtοThe development according to claim 4- is the Several inner mandrels are arranged one behind the other or one below the other enables o

Durch die Weiterbildung nach dem Patentanspruch 5 wird auch eine sichere Zentrierung des Innendornes gegenüber dem Transportwalzenpaar erreicht.The development according to claim 5 also ensures that the inner mandrel is centered reliably with respect to the pair of transport rollers achieved.

Durch die Weiterbildung nach dem Patentanspruch 6 wird eine reibungsarme Lagerung des Innendornes an dem Transportwalzenpaar ermöglicht.The development according to claim 6 enables a low-friction mounting of the inner mandrel on the pair of transport rollers enables.

Die Erfindung ist nachstehend anhand der Zeichnung näher erläutert. Es zeigen:The invention is explained in more detail below with reference to the drawing. Show it:

Fig. 1 ein Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung zum Abziehen eines aus drei Schichten bestehenden Foliensch.lau.ches über zwei hohle Innendorne und einen zentralen Innendorn im Yertikalschnitt sowie in schematischer Darstellung,1 shows an embodiment of a device according to the invention for peeling off a three-layer device Foil sch.lau.ches over two hollow inner mandrels and a central inner mandrel in a yertical section and in a schematic representation,

Figo 2 einen Schnitt längs der Linie II - II von Fig. 1 in Teildarstellung.FIG. 2 shows a section along the line II-II of FIG. 1 in partial representation.

Mittels eines Paares von Transportwalzen 1, 1', von welchem in Fig. 1 nur eine Transportwalze 1 sichtbar ist, werden drei Folienschläuche 2, 3» 4 in flachgedrückter Form vertikal nach unten gefördert»By means of a pair of transport rollers 1, 1 ', one of which In Fig. 1 only one transport roller 1 is visible, there are three Foil tubes 2, 3 »4 in flattened form vertically after promoted below »

Der äußere Folienschlauch 4- wird über einen hohlen Innendorn gezogen, der mittlere Folienschlauch 3 über einen hohlen Innendorn 6 und der innere Folienschlauch 2 über einen zentralenThe outer film tube 4- is pulled over a hollow inner mandrel, the middle film tube 3 over a hollow inner mandrel 6 and the inner film tube 2 via a central

709820/0837709820/0837

Innendorn 7, wobei die drei Folienschläuche 2 - 4 an dem zentralen Innendorn 7 vermöge einer nicht veranschaulichten Erwärmungseinrichtung miteinander verschichtet werden, so daß in Abzugrichtung hinter dem zentralen Innendorn 7 ein Verbundschlauch entstanden ist. Durch die Innendorne 6 und 7 wird hierbei eine Aufweitung des jeweils zugeordneten Polienschlauches 3 bzw. 2 bewirkt.Inner mandrel 7, the three film tubes 2-4 on the central inner mandrel 7 are layered together by virtue of a heating device, not shown, so that a composite hose behind the central inner mandrel 7 in the withdrawal direction originated. The inner mandrels 6 and 7 expand the respective associated polishing tube 3 or 2 causes.

Am oberen Ende des zentralen Innendornes 7 ist ein Zuganker 8 befestigt, welcher an dem von dem Innendorn 7 abgewendeten Ende eine Verdickung 9 aufweist= Die Verdickung 9 ist zylindrisch /mit
/achsparallel zu dem Transportwalzenpaar 1, 1' verlaufender Achse ausgebildet»At the upper end of the central inner mandrel 7, a tie rod 8 is attached, which has a thickening 9 at the end facing away from the inner mandrel 7 = the thickening 9 is cylindrical / with
/ designed axially parallel to the transport roller pair 1, 1 'running axis »

Der hohle Innendorn 5 weist zwei Zuganker 10, 10' nebst Verdickungen 11, 11' auf, wobei die Zuganker 10, 10' an zwei diametralen Umfangsstellen des Innendornes 5 befestigt sind. In ähnlicher Weise sind auch an dem hohlen Innendorn 6 zwei Zuganker 12, 12' neb3t Verdickungen 13, 13' vorgesehen. Die Innendorne 5-7 sind demzufolge unterhalb des Transportwalzenpaares 1, 1' hängend gelagert.The hollow inner mandrel 5 has two tie rods 10, 10 'together with thickenings 11, 11 ', the tie rods 10, 10' being attached to two diametrical circumferential locations of the inner mandrel 5. In a similar way, two tie rods 12, 12 'and thickenings 13, 13' are also provided on the hollow inner mandrel 6. the Inner mandrels 5-7 are therefore suspended below the pair of transport rollers 1, 1 '.

Wie sich am besten aus Fig. 2 ergibt, weisen die beiden Walzen 1, 1' des Transportwalzenpaares gegenseitig axial ausgerichtete ümfangsnuten 14, 14' auf, die zur Aufnahme der Zuganker 8, 10, 10', 12, 12' dienen. In Fig. 2 sind wegen der bruchstückweisen Darstellung lediglich die Zuganker 8, 10, 12 veranschaulicht.As can best be seen from Fig. 2, the two rollers 1, 1 'of the pair of transport rollers are mutually axially aligned ümfangsnuten 14, 14 ', which serve to receive the tie rods 8, 10, 10', 12, 12 '. In Fig. 2 are because of the fragmentary Representation only illustrates the tie rods 8, 10, 12.

709820/0837709820/0837

Claims (1)

111 Vorrichtung zum. Abziehen zumindest eines Folienschlauches über einen Innendorn mit einem vor dem Innendorn angeordneten Transportwalzenpaar, zwischen welchem der Schlauch in flachgedrückter Form verläuft, gekennzeichnet durch einen am oberen Ende des Innendornes (7) befestigten Zuganker (8) mit einer "Verdickung (9) an dem von dem Innendorn abgewendeten Ende, welche die Spaltbreite des Transportwalzenpaares (1, 1') übersteigt und an der von dem Innendorn abgewendeten Seite des Spaltes des Transportwalzenpaares angeordnet ist,111 device for. Pulling off at least one film tube Via an inner mandrel with a pair of transport rollers arranged in front of the inner mandrel, between which the hose is flattened Form runs, characterized by a tie rod (8) attached to the upper end of the inner mandrel (7) with a "Thickening (9) at the end facing away from the inner mandrel, which exceeds the gap width of the transport roller pair (1, 1 ') and on the side facing away from the inner mandrel of the Gap of the transport roller pair is arranged, 2«, Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß bei hohler Ausbildung des Innendornes (5) zwei Zuganker (10, 1O1) nebst Verdickungen (11, 11') an zwei diametralen Umfangsstellen des Innendornes befestigt sind»2 «, device according to claim 1, characterized in that with a hollow design of the inner mandrel (5) two tie rods (10, 10, 1 ) together with thickenings (11, 11 ') are attached to two diametrical circumferential locations of the inner mandrel» 3ο Vorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß der Innendorn (7) unterhalb des Transportwalzenpaares (1, 11) hängend gelagert ist»3ο device according to one of claims 1 or 2, characterized in that the inner mandrel (7) is suspended below the pair of transport rollers (1, 1 1) » 4„ Vorrichtung nach einem der Ansprüche 1-3, gekennzeichncυ durch Hintereinander- bzw. Untereinanderanordnung eines zentralen (7) und zumindest eines hohlen (5) Innendornes oder zumindest zweier hohler Innendorne (5, 6), deren Zugankerpaare (10, 10'; 12, 12') im Überlappungsbereich mit anderen Zugankerpaaren unterschiedliche Abstände aufweisen«4 "Device according to one of claims 1-3, gekennzeichncυ by arranging a central (7) and at least one hollow (5) inner mandrel one behind the other or one below the other, or at least two hollow inner mandrels (5, 6), their pairs of tie rods (10, 10 '; 12, 12') in the area of overlap with other pairs of tie rods have different distances " 5ο Vorrichtung nach einem der Ansprüche 1-4, dadurch gekennzeichnet, daß die beiden Walzen (1, 1') des Transportwalzenpaares gegenseitig axial ausgerichtete Umfangsnuten (14, 14-') zur Aufnahme des oder der Zuganker (8, 10, 12) aufweisen.5ο device according to one of claims 1-4, characterized in that that the two rollers (1, 1 ') of the transport roller pair have mutually axially aligned circumferential grooves (14, 14- ') for receiving the tie rod or bolts (8, 10, 12). Ge Vorrichtung nach einem der Ansprüche 1- 5} dadurch gekennzeichnet, daß die VercSckungen (9, 11, 13) des oder der Zuganker (5j 6, 7) zylindrisch mit achsparallel zu dem Transportwalzenpaar (1, 1') verlaufender Achse ausgebildet sind.Ge apparatus according to any one of claims 1- 5} characterized in that the VercSckungen (9, 11, 13) or the tie rod (5y 6, 7) are cylindrical with axis parallel to the transport roller pair (1, 1 ') extending axis. 709820/08 3 7709820/08 3 7
DE19732366020 1972-06-26 1973-02-24 Fabricating thermoplastic layflat film - in two layers oriented at right angles Pending DE2366020A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19732366020 DE2366020A1 (en) 1972-06-26 1973-02-24 Fabricating thermoplastic layflat film - in two layers oriented at right angles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP47063273A JPS5139678B2 (en) 1972-06-26 1972-06-26
DE19732366020 DE2366020A1 (en) 1972-06-26 1973-02-24 Fabricating thermoplastic layflat film - in two layers oriented at right angles

Publications (1)

Publication Number Publication Date
DE2366020A1 true DE2366020A1 (en) 1977-05-18

Family

ID=25766343

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19732366020 Pending DE2366020A1 (en) 1972-06-26 1973-02-24 Fabricating thermoplastic layflat film - in two layers oriented at right angles

Country Status (1)

Country Link
DE (1) DE2366020A1 (en)

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