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WO1998026921A1 - Procede de fabrication d'un tuyau pouvant se plier, et un tel tuyau - Google Patents

Procede de fabrication d'un tuyau pouvant se plier, et un tel tuyau Download PDF

Info

Publication number
WO1998026921A1
WO1998026921A1 PCT/PL1997/000029 PL9700029W WO9826921A1 WO 1998026921 A1 WO1998026921 A1 WO 1998026921A1 PL 9700029 W PL9700029 W PL 9700029W WO 9826921 A1 WO9826921 A1 WO 9826921A1
Authority
WO
WIPO (PCT)
Prior art keywords
tape
pipe
wire
glue layer
wrapped
Prior art date
Application number
PCT/PL1997/000029
Other languages
English (en)
Inventor
Walter Kaczorowski
Original Assignee
Walter Kaczorowski
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 PL31752296A external-priority patent/PL317522A1/xx
Priority claimed from PL32103597A external-priority patent/PL321035A3/xx
Application filed by Walter Kaczorowski filed Critical Walter Kaczorowski
Publication of WO1998026921A1 publication Critical patent/WO1998026921A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/11—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall
    • F16L11/112—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having reinforcements embedded in the wall
    • 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
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/581—Winding and joining, e.g. winding spirally helically using sheets or strips consisting principally of plastics material
    • B29C53/582—Winding and joining, e.g. winding spirally helically using sheets or strips consisting principally of plastics material comprising reinforcements, e.g. wires, threads
    • 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
    • B31C—MAKING WOUND ARTICLES, e.g. WOUND TUBES, OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31C3/00—Making tubes or pipes by feeding obliquely to the winding mandrel centre line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/24—Hoses, i.e. flexible pipes wound from strips or bands
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/0218—Flexible soft ducts, e.g. ducts made of permeable textiles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/0263—Insulation for air ducts

Definitions

  • the subject of the invention is the manufacturing method of a pipe having bending capability and a pipe having bending capability thus . manufactured, designed for transporting pumped or sucked ventilation air.
  • a protective description of the utility model Ru 45891 concerns a ventilation pipe having bending capability with a flexible coating covered by a helically wrapped wire mesh reinforcement.
  • the pipe ends have pockets formed by flanging the flexible coating.
  • the edges of the flanged flexible coating reach beyond the first wire convolutions. These pockets comprise rings.
  • the mesh reinforcement convolutions are bonded to the superficies of the flexible coating by means of a cover plate which comprises mesh reinforcement convolutions, while its edges are bonded inseparably to the coating material.
  • the end of the pipe having bending capability is mounted on the sleeve, bonded by means of a band clip.
  • the method of manufacturing a pipe having bending capability comprising a mesh reinforcement made of a wire mesh and a flexible coating bonded thereto, consisting in a helical wrapping of the wire mesh and the tape on the head, prescribed by the invention consists in covering the lower and upper tapes unwound from a drum with a glue layer on one side, said tapes being of the same width preferably of polyesther foil, then the upper tape is turned over so that the adhesive sides of said tapes face each other. Said tapes whose adhesive layers face each other are positioned in such a way, that the lower tape is under the upper tape and that the upper tape is displaced horizontally with regard to the lower tape.
  • Unreeled steel wire is introduced between both tapes and the lower tape with a glue layer, the wire and the upper tape with a glue layer are all wrapped helically over the head at the same time.
  • the lower tape with a glue layer on the upper surface is wrapped helically so that each subsequent convolution of this tape overlaps the edge of the preceding convolution joining the edges of the lower tape.
  • steel wire is wrapped helically at the same time, while the upper tape with a glue layer on the lower surface is wrapped helically at the same time over the wire so that for each convolution, this tape overlaps the edge of the preceding convolution, joining the edges of the upper tape.
  • the upper tape remains in contact with the adhesive layer and is pressed at the same time to the adhesive layer between the bonded edges of the helically wrapped lower tape, forming a continuous, double-layer pipe having bending capability.
  • the contact between the upper tape and the wire takes place approximately in the middle of the tape width.
  • the modification of the method of generating a pipe having bending capability consists in that the polyesther tape, preferably metallized is unreeled, covered on one side by a glue layer, whereupon it is wrapped helically over the head, the adhesive layer upwards.
  • the helical wrapping of both the tape and the wire commences at the same time.
  • the wire is wrapped over the glue layer of the tape convolution in its middle. Said convolution with a glue layer and the wire are covered by another tape convolution without a glue layer, then by the tape convolution with a glue layer and the wire. Both tapes with the wire between them form a continuous, double-layer pipe having bending capability.
  • a pipe having bending capability comprising a mesh reinforcement made of wire and a flexible coating
  • the flexible coating comprises two continuous coatings: outer and inner.
  • Helically wrapped steel wire is between both coating.
  • the outer coating is formed from a helically wrapped upper tape with a glue layer on the lower surface, while the inner coating is formed from a helically wrapped lower tape with a glue layer on the upper surface.
  • a variation of the pipe having bending capability has a flexible coating comprising bonded to continuous edges of the helically wrapped tape, with a helically wrapped steel wire in between.
  • a variation of the pipe having bending capability may be equipped with a pipe wrapping, preferably made of a glass wool.
  • the pipe wrapping is placed on the perimeter of the outer coating of the pipe having bending capability and is protected within its entire length against sliding by a band clip preferably made of flexible mesh placed in a flexible sleeve preferably made of polyethylene foil.
  • the band clip ensures good adhesion of the pipe wrapping to the pipe having bending capability and its outer layer ensures good sliding when introducing the pipe having bending capability together with the pipe wrapping into a flexible sleeve.
  • the flexible sleeve us an outer coating of the pipe having bending capability.
  • Each method prescribed by the invention ensures a simple, uncomplicated way of manufacturing a leakproof pipe having bending capability of any diameter, which at the same time has very good mechanical properties. All modifications of the pipe having bending capability prescribed by the invention ensure good air flow and good strength over the whole length. Thanks to its bending capability, the pipe having bending capability may be easily installed where ventilation ducts must be placed in bends. A double-layer of the flexible coating ensures the tightness of the ventilation duct. The wire mesh mesh reinforcement prevents the subsidence of the double-layer flexible pipe coating under the suction of the ventilator which may be connected to this pipe.
  • the possibility of using a pipe wrapping on the perimeter of the pipe having bending capability prescribed by the invention allows to avoid thermal losses in cases these losses may be significant. The pipe wrapping results in noise reduction and forms an insulation against vibrations, which may appear during the operation of the ventilation equipment.
  • fig. 1 shows a schematic method of manufacturing the pipe having bending capability from two tapes
  • fig. 2 - a schematic view of the wall section of the pipe having bending capability made of two tapes
  • fig. 3 a perspective view of the pipe having bending capability made of two tapes
  • fig. 4 - a section of the pipe having bending capability made of two tapes
  • fig.5 a section of the pipe having bending capability made of two tapes equipped with the pipe wrapping
  • fig.6 - a perspective view of the pipe having bending capability made of one tape
  • fig. 7 a section of the pipe having bending capability made of one tape
  • fig. 8 a section of the pipe having bending capability made of one tape equipped with the pipe wrapping.
  • the method of manufacturing a pipe having bending capability from two tapes: lower 3_ and upper 4_ consists in unreeling simulaneously two tapes: lower 3 ⁇ and upper -4 from two reels 1_ and 2 ⁇ of the same width, made of the polyesther foil.
  • Both tapes: lower _3 and upper 4_ are conducted with constant speed over the guide rolls _5 to the gluer _6 where one side of said tapes is covered by glue layer, the excess of the solvent is evaporated from the glue layer inside a dryer 7, then the upper tape 4 is turned over by means of a roll unit 8_ with the glue layer facing down.
  • the tapes lower _3 and upper _4 whose glue layers are positioned so that the upper tape _4 is over the lower tape 3 ⁇ though the upper tape 4_ is displaced horizontally as regards the lower tape 2S.
  • a steel wire 10 unwound from the reel 9_ is introduced between the lower _3 and upper 4_ tapes while the lower tape _3 with a glue layer on the upper surface, the wire 1_0 and upper tape _4 with a glue layer on the lower surface are wrapped helically at the same time over the head 1L..
  • the lower tape 3_ with a glue layer on the upper surface is wrapped helically so that each subsequent convolution of the lower tape _3 overlaps the edge of the preceding convolution, bonding the edges of the lower tape 3_.
  • Steel wire 1J3 is wrapped helically over the bonding bonding of the lower tape 3>, approximately in their middle, while the upper tape _4 with a glue layer on the lower surface is wrapped helically over the steel wire 1_0 wrapped helically at the same time, so that each subsequent convolution of the upper tape _4 overlaps the edge of the preceding convolution, bonding the edges of the lower tape 3_.
  • the upper tape 4 touches the wire 1_0 with the glue layer and is simultaneously pressed to the glue layer of the lower tape 3 ⁇ forming a continuous double-layer pipe having bending capability V2_ shown on the section on fig. 4.
  • the contact of the upper tape 4_ with the wire 1_0 takes place approximately in the middle of the upper tape _4.
  • a modification of the manufacturing method of the pipe having bending capability from one tape 3_ consists in unwinding the tape 3_ from a reel 2_ made of metallized polyesther foil.
  • the tape _3 is conducted with constant speed over the guide rolls 5 to the gluer where the upper side of the tape 3_ is covered with a glue layer and the excess of the solvent is evaporated from the glue layer in the dryer 1_ .
  • the tape _3 with the dried glue layer is then wrapped onto the head, glue layer up. Simultaneously, the wire 1_0 is unwound from the reel 9_ and wrapped helically over the tape convolution 3 ⁇ in the bonding place, approximately in the middle of the glue layer of the tape 3 ⁇ .
  • the tape 3_ with the glue layer on the upper side is wrapped helically over the head 1JL in such a way that each subsequent tape convolution 3_ overlaps approximately to the middle of the preceding convolution.
  • Each subsequent tape convolution 3_ has contact with the glue layer found on the preceding convolution and with the wire 1_0 which is found on the glue layer of the preceding convolution and is pressed thereto in order to be glued.
  • a continuous, double-layer pipe having bending capability 1_2 is made from one tape ,3 as shown in a section on fig. 8.
  • the pipe wrapping 1_3 is mounted on the perimeter of the outer coating of the the pipe having bending capability 1_2 and is secured all over its length before sliding with a clip band 1_4 made of the flexible mesh.
  • the pipe having bending capability _12 . together with the pipe wrapping 1_3 in the clip band 14_ are placed in a flexible sleeve 1_5 made of polyethylene foil which constitutes the outer coating of the pipe having bending capability 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Textile Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

Dans un premier aspect, le procédé de l'invention consiste à enrouler de façon hélicoïdale (11), sur une tête, une bande inférieure (3) et une bande supérieure (4), de même qu'un fil d'acier intermédiaire, sur une tête, les bandes inférieure (3) et supérieure (4) étant déjà recouvertes sur un côté d'une couche de colle, et la bande supérieure (4) étant retournée de façon que les deux bandes, inférieure (3) et supérieure (4), présentent chacune sa couche de colle en face de l'autre couche de colle, et que la bande inférieure (3) soit placée en dessous de la bande supérieure (4), la bande supérieure (4) étant déplacée horizontalement par rapport à la bande inférieure (3). Le fil d'acier (10) est introduit entre les bandes inférieure (3) et supérieure (4). Le tuyau pouvant se plier (12) et fabriqué selon le premier aspect de l'invention se compose de deux revêtements continus: l'un extérieur, constitué par la bande supérieure (4) enroulée de façon hélicoïdale et présentant une couche de colle sur sa surface intérieure, l'autre intérieur, constitué par la bande inférieure (3), enroulée de façon hélicoïdale et présentant une couche de colle sur sa surface supérieure, le fil d'acier (10) étant enroulé de façon hélicoïdale entre ces deux revêtements.
PCT/PL1997/000029 1996-12-17 1997-12-08 Procede de fabrication d'un tuyau pouvant se plier, et un tel tuyau WO1998026921A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
PLP.317522 1996-12-17
PL31752296A PL317522A1 (en) 1996-12-17 1996-12-17 Method of making a flexible tubular conduit and flexible tubular conduit made thereby
PLP.321035 1997-07-09
PL32103597A PL321035A3 (en) 1997-07-09 1997-07-09 Method of making a flexible tubing and flexible tubing made thereby

Publications (1)

Publication Number Publication Date
WO1998026921A1 true WO1998026921A1 (fr) 1998-06-25

Family

ID=26653228

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/PL1997/000029 WO1998026921A1 (fr) 1996-12-17 1997-12-08 Procede de fabrication d'un tuyau pouvant se plier, et un tel tuyau

Country Status (1)

Country Link
WO (1) WO1998026921A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004042174A2 (fr) * 2002-11-07 2004-05-21 Flexmaster Co. Ltd. Conduit a enroulement helicoidal
EP2002163A2 (fr) * 2006-03-24 2008-12-17 G.L.V. International (1995) Ltd. Conduite flexible semi-rigide
KR101332611B1 (ko) * 2011-10-05 2013-11-25 노성근 접착식 주름관 제조 장치
JP2015183865A (ja) * 2014-03-20 2015-10-22 フジモリ産業株式会社 フレキシブルダクト
CN105508758A (zh) * 2016-01-29 2016-04-20 宁波市鄞州邱隘洁力塑料厂 一种缠绕管
EP3403030A1 (fr) * 2016-01-12 2018-11-21 Zehnder Group International AG Élément de conduit, système d'éléments de conduit pour un système de ventilation et enveloppe extérieure ainsi équipée
US11401444B2 (en) * 2006-09-26 2022-08-02 Intertape Polymer Corp. Filament reinforced tapes useful as underwater pipe wrap

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2027583A1 (de) * 1970-06-04 1971-12-09 Ohler Flexrohr Gmbh Papierrohr
US4104097A (en) * 1976-08-05 1978-08-01 Clecon Incorporated Method for making flexible duct
US4299641A (en) * 1978-04-27 1981-11-10 The Wiremold Company Method of making two ply duct core
FR2498980A1 (fr) * 1981-02-03 1982-08-06 Caumont Jean Francois Tuyau et gaine souples spirales et procede de fabrication
US4611362A (en) 1985-04-01 1986-09-16 Milliken Research Corporation Buffing wheel
EP0266002A1 (fr) * 1986-10-24 1988-05-04 DEC Holding B.V. Procédé de fabrication d'un tuyau ayant une surface intérieure lisse et tuyau fabriqué par ce procédé
US5607529A (en) * 1995-02-15 1997-03-04 Adamczyk; Eric J. Insulated flexible air duct and the process for manufacturing the same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2027583A1 (de) * 1970-06-04 1971-12-09 Ohler Flexrohr Gmbh Papierrohr
US4104097A (en) * 1976-08-05 1978-08-01 Clecon Incorporated Method for making flexible duct
US4299641A (en) * 1978-04-27 1981-11-10 The Wiremold Company Method of making two ply duct core
FR2498980A1 (fr) * 1981-02-03 1982-08-06 Caumont Jean Francois Tuyau et gaine souples spirales et procede de fabrication
US4611362A (en) 1985-04-01 1986-09-16 Milliken Research Corporation Buffing wheel
EP0266002A1 (fr) * 1986-10-24 1988-05-04 DEC Holding B.V. Procédé de fabrication d'un tuyau ayant une surface intérieure lisse et tuyau fabriqué par ce procédé
US5607529A (en) * 1995-02-15 1997-03-04 Adamczyk; Eric J. Insulated flexible air duct and the process for manufacturing the same

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004042174A2 (fr) * 2002-11-07 2004-05-21 Flexmaster Co. Ltd. Conduit a enroulement helicoidal
WO2004042174A3 (fr) * 2002-11-07 2004-07-01 Flexmaster Co Ltd Conduit a enroulement helicoidal
EP2002163A2 (fr) * 2006-03-24 2008-12-17 G.L.V. International (1995) Ltd. Conduite flexible semi-rigide
EP2002163A4 (fr) * 2006-03-24 2011-05-18 G L V Internat 1995 Ltd Conduite flexible semi-rigide
US11401444B2 (en) * 2006-09-26 2022-08-02 Intertape Polymer Corp. Filament reinforced tapes useful as underwater pipe wrap
US11401445B2 (en) 2006-09-26 2022-08-02 Intertape Polymer Corp. Filament reinforced tapes useful as underwater pipe wrap
KR101332611B1 (ko) * 2011-10-05 2013-11-25 노성근 접착식 주름관 제조 장치
JP2015183865A (ja) * 2014-03-20 2015-10-22 フジモリ産業株式会社 フレキシブルダクト
EP3403030A1 (fr) * 2016-01-12 2018-11-21 Zehnder Group International AG Élément de conduit, système d'éléments de conduit pour un système de ventilation et enveloppe extérieure ainsi équipée
CN105508758A (zh) * 2016-01-29 2016-04-20 宁波市鄞州邱隘洁力塑料厂 一种缠绕管

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