DE1237296B - Device for making a tube from a strip of flexible material - Google Patents

Device for making a tube from a strip of flexible material

Info

Publication number
DE1237296B
DE1237296B DEK50806A DEK0050806A DE1237296B DE 1237296 B DE1237296 B DE 1237296B DE K50806 A DEK50806 A DE K50806A DE K0050806 A DEK0050806 A DE K0050806A DE 1237296 B DE1237296 B DE 1237296B
Authority
DE
Germany
Prior art keywords
roller
pipe
teeth
rollers
strip
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
DEK50806A
Other languages
German (de)
Inventor
C F Poelma
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.)
KONINK NL HEIDEMIJ
Original Assignee
KONINK NL HEIDEMIJ
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 KONINK NL HEIDEMIJ filed Critical KONINK NL HEIDEMIJ
Publication of DE1237296B publication Critical patent/DE1237296B/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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/10—Making tubes with seams being neither welded nor soldered, e.g. riveted seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/10—Making tubes with seams being neither welded nor soldered, e.g. riveted seams
    • B21C37/101—Making of the seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
    • B21D39/035—Joining superposed plates by slitting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/08—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles making use of forming-rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/0015—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor specially adapted for perforating tubes
    • B26F1/0038—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor specially adapted for perforating tubes from the inside
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36—Bending and joining, e.g. for making hollow articles
    • B29C53/38—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
    • B29C53/48—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively
    • B29C53/50—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively using internal forming surfaces, e.g. mandrels
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/49—Internally supporting the, e.g. tubular, article during joining
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8161—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8221—Scissor or lever mechanisms, i.e. involving a pivot point
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83511—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums
    • B29C66/83513—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums cooperating jaws mounted on rollers, cylinders or drums and moving in a closed path
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F5/00—Attaching together sheets, strips or webs; Reinforcing edges
    • B31F5/02—Attaching together sheets, strips or webs; Reinforcing edges by crimping or slotting or perforating
    • B31F5/022—Attaching together sheets, strips or webs; Reinforcing edges by crimping or slotting or perforating using a rotary tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F5/00—Attaching together sheets, strips or webs; Reinforcing edges
    • B31F5/02—Attaching together sheets, strips or webs; Reinforcing edges by crimping or slotting or perforating
    • B31F5/025—Attaching together sheets, strips or webs; Reinforcing edges by crimping or slotting or perforating by slotting
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B11/00—Drainage of soil, e.g. for agricultural purposes
    • E02B11/005—Drainage conduits
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/10—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables
    • E02F5/101—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables forming during digging, e.g. underground canalisations or conduits, by bending or twisting a strip of pliable material; by extrusion
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8223—Worm or spindle mechanisms
    • 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
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forests & Forestry (AREA)
  • Agronomy & Crop Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Description

DEUTSCHES PATENTAMTGERMAN PATENT OFFICE AUSLEGESCHRIFTEDITORIAL

DeutscheKl.: 39 a3-23/10 German class: 39 a3- 23/10

Nummer: 1237 296Number: 1237 296

Aktenzeichen: K 50806 X/39 a3File number: K 50806 X / 39 a3

Ύ 237 296 Anmeldetag: 12.September 1963 Ύ 237,296 filing date: September 12, 1963

Auslegetag: 23. März 1967Opened on: March 23, 1967

Die Erfindung betrifft eine Vorrichtung zum Herstellen eines Rohres aus einem Band aus biegsamem Material, bei der eine oder mehrere Führungen zum Rundbiegen des Bandes in seiner Längsrichtung, bis die Ränder einander überlappen, vorgesehen sind und ein Rollenpaar angeordnet ist, dessen eine Rolle an der Innenseite der Rohrwand an der Stelle der sich überlappenden Ränder liegt.The invention relates to a device for producing a pipe from a strip of flexible material Material in which one or more guides are used to bend the strip into a round shape in its longitudinal direction, up to the edges overlap each other, are provided and a pair of rollers is arranged, one of which is on a roller the inside of the pipe wall lies at the point of the overlapping edges.

Bei einer bekannten Vorrichtung dieser Art werden die Ränder des Bandes an der Überlappungsstelle mittels der Rollen erhitzt und durch Schmelzschweißen miteinander verbunden. Man erhält dabei ein wasserundurchlässiges Rohr.In a known device of this type, the edges of the tape are at the point of overlap heated by means of the rollers and connected to one another by fusion welding. You get a waterproof pipe.

Gemäß der Erfindung soll eine Vorrichtung der genannten Art derart verbessert werden, daß mit ihr wasserdurchlässige, für Drainagezwecke geeignete Rohre aus einem biegsamen Material wie Kunststoff od. dgl. herstellbar sind, wobei das verhältnismäßig aufwendige und außerdem nicht für alle Werkstoffe anwendbare Schmelzschweißen durch eine einfachere Art der Verbindung ersetzt wird. Das wird erfindungsgemäß dadurch erreicht, daß die eine der Rollen mit einer oder mehreren Verzahnungen versehen ist und die andere Rolle der Verzahnung entsprechende Nuten für den Eingriff der Verzahnung aufweist.According to the invention, a device of the type mentioned is to be improved in such a way that with her water-permeable pipes made of a flexible material such as plastic, suitable for drainage purposes Od. The like. Can be produced, the relatively complex and also not for all materials applicable fusion welding is replaced by a simpler type of connection. That is according to the invention achieved in that one of the rollers is provided with one or more teeth and the other roller of the toothing has corresponding grooves for the engagement of the toothing.

Bei dieser Anordnung bilden die Zähne Stanzstempel. Die Seitenkanten der Zahnköpfe erzeugen Einschnitte in der Rohrwand an der Überlappungsstelle, und durch den Kopf und die Flanken jedes Zahnes werden die ausgeschnittenen Teile der Rohrwand so gedehnt und verformt, daß ungefähr trapezförmige Ausbuchtungen an der Überlappungsstelle entstehen, welche an zwei gegenüberliegenden Seitenflächen offen sind. Auf diese Weise erhält man in einem Arbeitsgang Durchtrittsöffnungen für das Wasser und durch das Ineinandergreifen der ausgedrückten Wandteile eine Verbindung der sich überlappenden Ränder ohne zusätzliche Maßnahmen wie Schweißen od. dgl.In this arrangement the teeth form punches. Create the side edges of the tooth tips Incisions in the pipe wall at the point of overlap, and through the head and flanks of each Tooth, the cut-out parts of the pipe wall are stretched and deformed so that they are approximately trapezoidal Bulges arise at the point of overlap, which on two opposite side surfaces are open. In this way, passage openings for the water are obtained in one operation and through the interlocking of the expressed wall parts a connection of the overlapping ones Edges without additional measures such as welding or the like.

Vorteilhafterweise ist die Vorrichtung so ausgebildet, daß die Rollen federnd aufeinanderdrückbar angeordnet sind und die Köpfe der Zähne der einen Rolle bis auf den Grand der Nut der anderen Rolle reichen.The device is advantageously designed in such a way that the rollers are arranged such that they can be resiliently pressed against one another are and the heads of the teeth of one role except for the grand of the groove of the other role are sufficient.

Ein Ausführungsbeispiel der Erfindung wird an Hand der Zeichnungen im folgenden näher erläutert.An exemplary embodiment of the invention is explained in more detail below with reference to the drawings.

F i g. 1 ist ein Vertikalschnitt durch die Vorrichtung nach der Erfindung, und zwar längs der Linie I-IinFig. 3; F i g. 1 is a vertical section through the device according to the invention, along the line I-IinFig. 3;

F i g. 2 ist eine Stirnansicht der Vorrichtung, undF i g. Fig. 2 is an end view of the device, Figs

F i g. 3 ist ein Querschnitt längs der Linie III-III inFig. 1;F i g. 3 is a cross section along the line III-III in FIG. 1;

Vorrichtung zum Herstellen eines Rohres aus
einem Band aus biegsamem MaterialDevice for making a pipe from
a band of flexible material

Anmelder:Applicant:

Koninklijke Nederlandsche Heidemaatschappij,
Arnheim (Niederlande)Koninklijke Nederlandsche Heidemaatschappij,
Arnhem (Netherlands)

Vertreter:Representative:

Dr. W. Koch und Dr. R. Glawe, Patentanwälte,
München 22, Liebherrnstr. 20Dr. W. Koch and Dr. R. Glawe, patent attorneys,
Munich 22, Liebherrnstr. 20th

Als Erfinder benannt:Named as inventor:

C F. Poelma, Eindhoven (Niederlande)C F. Poelma, Eindhoven (Netherlands)

Beanspruchte Priorität:
Niederlande vom 8. Oktober 1962 (284 063) -Claimed priority:
Netherlands of October 8, 1962 (284 063) -

F i g. 4 zeigt in vergrößertem Maßstab perspektivisch einen Teil des hergestellten Rohres an der Nahtstelle. F i g. 4 shows, on an enlarged scale, a part of the pipe produced at the seam point in perspective.

Das zu einem Rohr 2 zu formende flache Band 1 wird durch eine Platte 3 hindurch gezogen, die mit einem ovalen Loch 4 versehen ist. Das derart vorgebogene Band passiert darauf den Spalt zwischen einem Dorn 5 und einer Führungshülse 6 und wird dort bis zum Überlappen der Ränder rundgebogen. In der Führungshülse 6 ist eine mit Verzahnungen 10 versehene Rolle 7 drehbar gelagert. Gegen die Außenseite des Rohres drückt eine Rolle 8, die gegenüber den Zähnen 10 der Rolle 7 umlaufende Nuten 9 aufweist. The flat strip 1 to be formed into a tube 2 is drawn through a plate 3 which is provided with an oval hole 4 . The band pre-bent in this way then passes the gap between a mandrel 5 and a guide sleeve 6 and is bent round there until the edges overlap. A roller 7 provided with teeth 10 is rotatably mounted in the guide sleeve 6. A roller 8, which has circumferential grooves 9 opposite the teeth 10 of the roller 7, presses against the outside of the tube.

Die Zähne 10 der Rolle 7 arbeiten als Stanzstempel, welche Teile des Bandes ausschneiden und verformen zur Bildung trapezförmiger Vorsprünge 11, die an ihren einander gegenüberliegenden Seitenflächen offen sind. Die Höhe dieser Vorsprünge 11 ist um so größer, je tiefer die Nuten 9 in der Rolle 8 sind. Entsprechend werden auch die öffnungen an den Seitenflächen der Vorsprünge größer, und die Wasserdurchlässigkeit des Rohres nimmt zu.The teeth 10 of the roller 7 work as punches which cut out parts of the tape and deform them to form trapezoidal projections 11 which are open on their opposite side surfaces. The height of these projections 11 is greater, the deeper the grooves 9 in the roller 8 are. Correspondingly, the openings on the side surfaces of the projections also become larger, and the water permeability of the pipe increases.

Zur Erzielung des erforderlichen Druckes der Rollen 7 und 8 gegen die Rohrwand zum Eindrücken der Zähne 10 in die Wand ist die Rolle 8 in einem Hebel 12 gelagert, der bei 13 einen festen Drehpunkt hat und durch eine starke Feder 14 belastet ist. Der Druck dieser Feder kann mittels einer StellschraubeTo achieve the necessary pressure of the rollers 7 and 8 against the pipe wall to press the teeth 10 into the wall, the roller 8 is mounted in a lever 12 which has a fixed pivot point at 13 and is loaded by a strong spring 14. The pressure of this spring can be adjusted by means of an adjusting screw

709 520/397709 520/397

Claims (1)

15 geändert werden, die unter Zwischenschaltung einer Entspannungseinrichtung 16 auf den Hebel 12 der Rolle 8 drückt. Die Vorrichtung ist dabei derart ausgebildet, daß die Köpfe der Zähne 10 der Rolle 7 bis auf den Grund der Nut 9 der Rolle 8 reichen, wobei sich die ausgestanzten Vorsprünge 11 des Bandes dazwischen befinden. 15 , which presses on the lever 12 of the roller 8 with the interposition of a relaxation device 16. The device is designed in such a way that the heads of the teeth 10 of the roller 7 extend to the bottom of the groove 9 of the roller 8 , the punched-out projections 11 of the belt being located between them. Falls die Zähne 10 der Rolle 7 am Kopf ziemlich spitz zulaufen, kann bei ausreichendem Druck auf die Gegenrolle 8 ein so hoher Flächendruck zwischen dem Zahnkopf und dem Grund der Nut 9 erzielt werden, daß das Material der Rohrwand zu fließen anfängt, wodurch eine Öffnung an der kürzeren Seite der Vorsprünge 11 entsteht. Auf diese Weise wird die Durchlässigkeit des Rohres noch vergrößert. Für den gleichen Zweck können mehrere Reihen von Vorsprüngen 11 ausgebildet werden; dadurch wird außerdem eine festere Verbindung an der Naht des Rohres erzielt. Auch kann die Wasserdurchlässigkeit des Rohres außerdem dadurch vergrößert werden, daß die Rohrwand mit Löchern versehen wird.If the teeth 10 of the roller 7 are rather pointed at the head, with sufficient pressure on the counter roller 8 , such a high surface pressure can be achieved between the tooth tip and the bottom of the groove 9 that the material of the pipe wall begins to flow, creating an opening the shorter side of the projections 11 is formed. In this way, the permeability of the pipe is increased. For the same purpose, several rows of protrusions 11 can be formed; this also creates a stronger connection at the seam of the pipe. The water permeability of the pipe can also be increased in that the pipe wall is provided with holes. Durch das Biegen des flachen Bandes zu einem kreisförmigen Querschnitt entstehen in dem Band ziemlich gleichmäßige Biegemomente. Durch das Einklemmen des Bandes zwischen den Rollen 7 und 8 erhält das Band jedoch an seinen Rändern vom Rollenpaar eine derartige Formänderung, daß an dieser Stelle die Krümmung der Wand größer wird. Dadurch wird der Rohrquerschnitt eiförmig. Eine solche Querschnittsform ist günstig für die Strömung vonBending the flat ribbon into a circular cross-section creates fairly uniform bending moments in the ribbon. By clamping the tape between the rollers 7 and 8 , however, the tape receives such a change in shape at its edges from the pair of rollers that the curvature of the wall becomes greater at this point. This makes the pipe cross-section egg-shaped. Such a cross-sectional shape is favorable for the flow of verunreinigten Flüssigkeiten in nicht ganz gefüllten Rohren.contaminated liquids in not completely filled pipes. Je nach der Art des benutzten Kunststoffes und der Umgebungstemperatur abhängig kann eine Erwärmung des Bandes und gegebenenfalls auch der Vorrichtung auf eine höhere Temperatur erforderlich oder vorteilhafter sein.Depending on the type of plastic used and the ambient temperature, heating may occur the tape and possibly also the device to a higher temperature is required or be more advantageous. Patentansprüche:Patent claims: ίο 1. Vorrichtung zum Herstellen eines Rohres ίο 1. Device for making a pipe aus einem Band aus biegsamem Material, bei der eine oder mehrere Führungen zum Rundbiegen des Bandes in seiner Längsrichtung, bis die Ränder einander überlappen, vorgesehen sind und ein Rollenpaar angeordnet ist, dessen eine Rolle an der Innenseite der Rohrwand an der Stelle der sich überlappenden Ränder liegt, dadurchgekennzeichnet, daß die eine der Rollen(7) mit einer oder mehreren Verzahnungen (10) versehen ist und die andere Rolle den Verzahnungen (10) entsprechende Nuten (9) für den Eingriff der Verzahnung (10) aufweist.of a strip of flexible material, in which one or more guides are provided for bending the strip in its longitudinal direction until the edges overlap, and a pair of rollers, one of which is arranged on the inside of the pipe wall at the location of the overlapping edges is, characterized in that one of the rollers (7) is provided with one or more teeth (10) and the other roller has the teeth (10) corresponding grooves (9) for the engagement of the teeth (10) . 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Rollen (7, 8) federnd aufeinanderdrückbar angeordnet sind und die Köpfe der Zähne (10) der einen Rolle (7) bis auf den Grand der Nut (9) der anderen Rolle (8) reichen.2. Device according to claim 1, characterized in that the rollers (7, 8) are arranged resiliently pressed against one another and the heads of the teeth (10) of one roller (7) except for the size of the groove (9) of the other roller (8 ) range. In Betracht gezogene Druckschriften:
USA.-Patentschrift Nr. 2 491 048.Considered publications:
U.S. Patent No. 2,491,048. Hierzu 1 Blatt Zeichnungen1 sheet of drawings 709 520/397 3.67 © BundesdruckereiBerlin709 520/397 3.67 © BundesdruckereiBerlin
DEK50806A 1962-10-08 1963-09-12 Device for making a tube from a strip of flexible material Pending DE1237296B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL284063 1962-10-08

Publications (1)

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DE1237296B true DE1237296B (en) 1967-03-23

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ID=19754160

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Application Number Title Priority Date Filing Date
DEK50806A Pending DE1237296B (en) 1962-10-08 1963-09-12 Device for making a tube from a strip of flexible material

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BE (1) BE637866A (en)
DE (1) DE1237296B (en)
DK (1) DK106269C (en)
GB (1) GB995980A (en)
NL (2) NL284063A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2442921A1 (en) * 1978-11-30 1980-06-27 Rhone Poulenc Textile Semi-rigid porous composite sheet for use in subsoil drainage - comprising a plastics mesh or undulating coarse fabric with a nonwoven fabric cover
DE3924649A1 (en) * 1989-07-26 1991-01-31 Schwede Horst METHOD FOR ADHESIVE-FREE JOINING OF PAGES OF PAPER, THIN CARDBOARD OD. THE LIKE, PACKAGING PRODUCED THEREOF AND DEVICE FOR CARRYING OUT THE METHOD AND FOR PRODUCING THE PACKAGING
US6035613A (en) * 1995-06-07 2000-03-14 Ranpak Corp. Cushioning conversion machine and method with stitching assemblies
US6207249B1 (en) 1995-06-07 2001-03-27 Ranpak Corporation Cushioning product and method with stitching
EP0779148A1 (en) * 1995-12-15 1997-06-18 Tokuji Watanabe Method and apparatus for manufacturing paper cushioning members
EP1047545B1 (en) 1998-01-12 2003-06-04 Ranpak Corp. Cushioning conversion machine and method
US6210310B1 (en) 1998-01-12 2001-04-03 Ranpak Corp. Cushioning conversion machine and method with enhanced stock separation and forming

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2491048A (en) * 1947-09-23 1949-12-13 Goodrich Co B F Method for making tubing and apparatus therefor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2491048A (en) * 1947-09-23 1949-12-13 Goodrich Co B F Method for making tubing and apparatus therefor

Also Published As

Publication number Publication date
NL120597C (en) 1900-01-01
NL284063A (en) 1900-01-01
BE637866A (en) 1900-01-01
GB995980A (en) 1965-06-23
DK106269C (en) 1967-01-09

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