DK168497B1

DK168497B1 - Method and means for lining and coating of conduits

Info

Publication number: DK168497B1
Application number: DK602587A
Authority: DK
Inventors: Stanley William Otto Menzel
Original assignee: Rib Loc Australia
Priority date: 1986-03-19
Filing date: 1987-11-17
Publication date: 1994-04-05
Also published as: HK112793A; DK602587D0; DK602587A

Description

DK 168497 B1DK 168497 B1

Opfindelsen vedrører en forbedret fremgangsmåde og udstyr til foring eller bevikling af ledninger og til foring af tunneler.The invention relates to an improved method and equipment for lining or winding of wires and for lining tunnels.

Tidligere når en ledning såsom et kloakrør af 5 tegl, beton eller støbejern skulle repareres, blev et plastrør med en diameter, der var mindre end eller større end det korroderede eller beskadigede parti anbragt i en stilling, så det dækkede i de mindste det beskadigede områder.Previously, when a pipe such as a sewer pipe of 5 bricks, concrete or cast iron was to be repaired, a plastic pipe having a diameter less than or greater than the corroded or damaged portion was placed in a position to cover at least the damaged areas. .

10 I tilfælde hvor det var nødvendigt at fore led ningen, blev det ringformede rum mellem det nye rør og det gamle tegl- beton- eller støbejernsrør udfyldt med en mørtel, sædvanligvis af cementtypen, men et af problemerne ved en sådan praksis var, at den færdige fore-15 de rørledning der blev skabt på denne måde, havde en mindre diameter end den originale rørledning, især når der skulle være plads til mørtelfyldningen.10 In cases where the conduit was necessary, the annular space between the new pipe and the old brick or cast iron pipe was filled with a mortar, usually of the cement type, but one of the problems of such a practice was that it The finished piping created in this way had a smaller diameter than the original pipeline, especially when there was room for the mortar filling.

Det er også væsentligt, at en ledning der skal fores sædvanligvis er ude af flugt, og forløber i bøl-20 ger og kurver, hvilket betyder, at foringsrøret af plastmateriale skal have en endnu mindre diameter for at kunne klare et sådant bølgende forløb og en sådan mangel på opretning.It is also essential that a line to be routed is usually out of flight and runs in waves and curves, which means that the casing of plastic material must have an even smaller diameter in order to withstand such a rolling course and a such a lack of alignment.

Ligeledes når et hul graves direkte i jorden med 25 henblik på at lede vand eller kabler, eller vertikalt med henblik på at skabe en brønd eller et borehul, kræver foringen af sådanne huller også et foringsrør med en diameter, der er betydelig mindre end hullets boring, som følge af den friktion der frembringes mellem 30 jorden og foringsrøret under indsætningen.Likewise, when a hole is dug directly into the ground to conduct water or cables, or vertically to create a well or borehole, the lining of such holes also requires a casing having a diameter considerably smaller than the bore of the hole. , due to the friction produced between the ground and the casing during insertion.

Det er hensigten med opfindelsen, at tilvejebringe en forbedret fremgangsmåde og et udstyr til at fore ledninger, enten hvor en eksisterende ledning skal udskiftes, eller hvor der skal tilvejebringes en ny 35 ledning.It is an object of the invention to provide an improved method and equipment for conducting wires, either where an existing line is to be replaced or where a new line is to be provided.

Det er en yderligere hensigt at .tilvejebringe en effektiv fremgangsmåde og udstyr til at påføre en eksisterende rørledning en indkapsling i form af et rør.It is a further intention to provide an efficient method and equipment for applying an existing pipeline to an enclosure in the form of a pipe.

2 DK 168497 B12 DK 168497 B1

Det er endnu en yderligere hensigt, at tilvejebringe en maskine med forholdsvis simpel opbygning og at tilvejebringe en fremgangsmåde til indsætning og formning af et rør, der danner foringen, hvorved forin-5 gen let kan placeres og kun giver et minimalt tab af ledningens tværsnitsareal.It is yet a further object to provide a machine of relatively simple construction and to provide a method of inserting and forming a tube forming the liner, whereby the liner can be easily placed and only provides a minimal loss of the cross-sectional area of the conduit.

Disse hensigter med opfindelsen nås, ved at benytte et rør dannet ved at vikle et bånd i skruelinie, og lade dets overlappende kanter indgribe med hinanden 10 med en styrbar glidepasning, så der fremkommer en rørformet genstand med eller uden langsgående eller på anden måde placerede ribber, hvilken formning af røret er ejendommelig ved, at røret holdes på en valgt diameter, medens det placeres i eller mod en ledning, og derefter 15 at ændre rørets diameter ved at bevirke, at de med hinanden indgribende overlappende kanter af båndet, der danner røret, glider i forhold til hinanden, og at røret holdes på den ændrede diameter.These objects of the invention are achieved by using a tube formed by winding a band in helical line and having its overlapping edges engage one another with a controllable sliding fit to form a tubular article with or without longitudinal or otherwise positioned ribs which shape of the tube is characterized in that the tube is held to a selected diameter while positioned in or against a conduit, and then to change the diameter of the tube by causing the interlocking overlapping edges of the strip forming the tube , slides relative to each other and the tube is kept at the changed diameter.

Opfindelsen kan udøves ved at frembringe et rør 20 ved vikling langs en skruelinie, på en maskine af en type, der er genstand for tidligere patenter med samme opfinder, og i hvilken der anvendes enten en krans af ruller, eller der anvendes differensdrevne ruller, der krummer båndet til den krævede form og overlapper bån-25 dets kanter, hvilket bånd dannes af en termoplast, som kan have en glat overflade på den ene side, og en ribbet overflade på den anden side, men også kan være et simpelt bånd med kanterne udformet til indbyrdes indgreb, og det kan have en overflade, der er indrettet 30 til at binde til mørtel.The invention may be practiced by providing a tube 20 by winding along a helical line, on a machine of a type subject to previous patents of the same inventor, in which either a wreath of rollers is used or differential driven rollers are used. the tape curves to the required shape and overlaps the edges of the strip, which is formed by a thermoplastic which may have a smooth surface on one side and a ribbed surface on the other side, but may also be a simple band with the edges. designed for mutual engagement, and it may have a surface adapted to bond to mortar.

I nogle tilfælde kan overfladen være glat på begge sider, og båndet kan være udformet, så det har langsgående lukkede hulrum, dannet mellem ribberne, men båndet er udformet således, at maskinen kan krumme bån-35 det i en krans eller ved hjælp af ruller, så der dannes et rør ved, at båndet vikles langs en skruelinie, og at båndets overlappende kanter indgriber med hinanden.In some cases, the surface may be smooth on both sides and the belt may be formed so that it has longitudinally closed cavities formed between the ribs, but the belt is formed such that the machine can curb the belt into a wreath or by means of rollers. , so that a tube is formed by the tape being wound along a helical line and the tape's overlapping edges engaging with each other.

DK 168497 B1 3DK 168497 B1 3

Det er således kendt, at et bånd af krævet profil formes af plast ved ekstrusion, således at det har med hinanden sammenlåsende elementer - ved båndets to kanter, så at båndet, ved vikling i en skruelinievikle-5 maskine så båndets kanter sammenlåses, danner et rør med forholdsvis stor styrke og holdbarhed.Thus, it is known that a ribbon of the required profile is formed of plastic by extrusion so that it has interlocking elements - at the two edges of the belt, so that the belt, when wound in a helical winding machine, so that the edges of the belt interlock together tubes with relatively high strength and durability.

Normalt formes disse rør på en sådan måde, at de bibeholder deres diameter efter viklingen, idet de i hinanden indgribende midler langs båndets kanter er så-10 ledes indrettet, at de passer stramt sammen og låser mod hinanden, især når der indføres et klæbemiddel i låseelementerne, således at røret vil bibeholde den nødvendige diameter til trods for tendensen til, at det vikler sig op som følge af, at båndet er blevet krummet 15 under fremstillingen.Normally, these tubes are formed in such a way that they maintain their diameter after the winding, the interlocking means along the edges of the tape being so arranged as to fit tightly together and lock against each other, especially when an adhesive is introduced into the tube. the locking elements so that the tube will retain the required diameter despite the tendency for it to wind up due to the tape being curved 15 during manufacture.

Ifølge opfindelsen er båndet udformet således, at de i hinanden indgribende kanter kan glide i forhold til hinanden, således at det således dannede rørs diameter kan forøges eller formindskes efter ønske, ved at 20 påføre røret en kraft, der snor det i den ene eller den anden retning.According to the invention, the belt is formed such that the interlocking edges can slide relative to each other, so that the diameter of the tube thus formed can be increased or decreased as desired, by applying a force to the tube which encircles it in one or the other. other direction.

Det er kendt, at et af de største problemer under formning af rør af plastbånd, som ikke blot yder modstand mod bøjning, men også har tendens til at ændre 25 sine dimensioner ved at sno sig op, efter at røret er dannet, kræver stor dygtighed i konstruktion af maskiner, som vikler rør, og ved udvælgelsen af tværsnittet af sådanne bånd, og den måde, hvorpå de overlappende kanter indgriber med hinanden for at opretholde en sta-30 bil konstruktion.It is known that one of the biggest problems in forming plastic strip pipes which not only resist bending but also tend to change its dimensions by twisting up after the pipe is formed requires great skill in the construction of machines which wrap pipes, and in the selection of the cross-section of such bands, and the manner in which the overlapping edges engage with each other to maintain a stable car construction.

Ved at udforme båndet således, at der kan forekomme en styret glidning, kan der opnås ændrede egenskaber, som kan understøttes ved at belægge de overlappende kanter med konsistensfedt eller et siliconetæt-35 ningsmiddel, med midler til at styre båndets diameter, og midler til at holde båndet på sin nye diameter, som 4 DK 168497 B1 f.eks. ved at ekspandere det mod et rør, eller ved at benytte dets udrettende kraft til at lade det ekspandere inde i et rør eller en rørledning, når der påføres en tilstrækkelig kraft til at overvinde friktionen 5 mellem de i hinanden indgribende kanter, eller til at overrive brudelementer udformet på båndet, eller er påført i form af holdebånd, som opretholder rørets korrekte diameter, indtil der påføres tilstrækkelig kraft til at bevirke at der sker en forskydning mellem de 10 overlappende kanter, så røret kan indtage sin ny diamater. Ifølge opfindelsen tilvejebringes der også udstyr til foring af ledninger, baseret på det ovennævnte princip, og som er særegent ved det, der angives i den kendetegnende del af krav 16.By designing the tape so that a controlled slip can occur, altered properties can be obtained which can be supported by coating the overlapping edges with consistency grease or a silicone sealant, with means for controlling the diameter of the tape, and means for holding the belt on its new diameter, such as e.g. by expanding it against a pipe, or by using its straightening force to allow it to expand inside a pipe or pipeline when a sufficient force is applied to overcome the friction 5 between the engaging edges, or to tear fracture elements formed on the tape, or are applied in the form of retaining straps which maintain the correct diameter of the tube until sufficient force is applied to cause a displacement between the 10 overlapping edges to allow the tube to take up its new diameters. According to the invention, equipment for lining leads is also provided, based on the above-mentioned principle, which is peculiar to what is stated in the characterizing part of claim 16.

15 Opfindelsen vil nu blive nærmere forklaret ved hjælp af nogle udførelsesformer og med henvisning til tegningen, på hvilken fig. 1 er et noget skematisk snitbillede, der viser en kloakledning, der med mellemrum har adgangs-20 huller, og snittet viser yderligere et skrueviklet rør i stilling til foring af ledningen, og viser hvorledes en rørekspander kan indsættes ved den ene ende af røret fra et adgangshul, og kan drives gennem røret til den anden ende, så det viklede rør danner en foring i led-25 ningen, fig. 2 et længdesnit i rørekspanderen i en noget større målestok, hvilken ekspander både ekspanderer det viklede rør og bevæger indretningen fremad langs ledningen, der skal fores, 30 fig. 3 viser hvorledes røret kan udføres i sek tioner, der kan bringes i stilling gennem adgangshullerne, og figuren viser hvorledes enderne kan samles ved svejsning, eller båndene på anden måde kan fastgøres til hinanden, hvor de støder sammen, og kan forbin-35 des ved hjælp af de til indbyrdes indgreb indrettede kanter, DK 168497 B1 5 fig. 4 viser et endebillede af et typisk bånd til dannelse af et rør, og viser hvorledes kanterne overlapper hinanden, hvilke bånd i sig selv er kendte, og beskrives i AU patent nr. 527 417, 5 fig. 5 viser en modificeret udførelsesform af et bånd, fig. 6 viser et billede, der ligner fig. 1, men det viser opfindelsen anvendt i forbindelse med en foretrukket fremgangsmåde ifølge hvilken røret, der er 10 viklet i skruelinieform, ekspanderes ind i en kloak eller en anden ledning, som skal forsynes med en foring, og figuren viser en viklemaskine med en krans, der progressivt danner røret på stedet og viser den fremgangsmåde, der benyttes til progressivt at ekspandere røret 15 på et passende tidspunkt under rørvikli'ngsprocessen, fig. 7 viser et længdesnit i noget større målestok af en modificeret udførelsesform af et udstyr til at ekspandere det viklede rør ved anvendelse af en va-cuummetode til at opretholde rørdiameteren under vik-20 lingen, medens røret progressivt ekspanderes fra enden fjernest fra viklemaskinen, fig. 8 viser i større målestok udstyr i en udførelsesform, der er forskellig fra den i fig. 7 viste til at styre ekspansionen af røret, 25 fig. 9 er et billede, der demonstrerer foringen af en ledning, såsom en kloakledning efter vacuumprin-cippet ved, at båndet formes til et rør af maskinen, som vikler båndet, således at røret strækker sig gennem ledningen, og figuren viser en ekspansionsstyremekanis-30 me af en i fig. 8 vist type, og viser også midler til at styre låsningen af båndets overlappende kanter, fig. 10 viser hvorledes røret kan påføres en ekstra drivende kraft ved hjælp af en rem, idet røret forlader viklemaskinen, hvilken rem er antydet med 35 punkterede linier i fig. 9, fig. 11 er et delsnit af i viklemaskine svarende til den i fig. 9 viste, men inklusive det yderligere remtræk, 6 DK 168497 B1 fig. 12 er et tværsnit i noget større målestok langs linien 12-12 i rørviklemaskinen i fig. 13, fig. 13 er et sidebillede af rørviklemaskinen, der viser det ifølge opfindelsen viklede rør, der rager 5 frem fra maskinen, fig. 14 er et horisontalt snit langs linien 14-14 i fig. 13, og viser drivmekanismen for røret, fig. 15 viser et billede svarende til fig. 13 og er et snit langs linien 13-13 i fig. 12, der viser 10 tætningen ved denne ende af røret, og især viser hvorledes drivrullerne og trykrullerne samvirker, og fig. 16 er et billede i en noget større målestok, og viser et parti af en af drivrullerne og et parti af en trykrulle, og figuren viser hvorledes driv-15 rullens yderperiferi kan trykke mod båndets basis for at tvinge båndets basis mod trykrullen.The invention will now be explained in more detail by means of some embodiments and with reference to the drawing, in which fig. 1 is a somewhat schematic sectional view showing a sewer line having intermittent holes, and the section further shows a screw-wound pipe in position for lining the pipe, showing how a pipe expander can be inserted at one end of the pipe from a and can be driven through the tube to the other end so that the wound tube forms a liner in the conduit; Figure 2 is a longitudinal section of the tube expander on a somewhat larger scale, which expands both the wound tube and moves the device forward along the line to be fed; 3 shows how the pipe can be made in sections which can be positioned through the access holes, and the figure shows how the ends can be joined by welding or the tapes can otherwise be attached to each other where they collide and can be connected by by means of the mutually arranged edges, DK 168497 B1 5 fig. 4 shows an end view of a typical strip forming a tube, showing how the edges overlap which strips are known per se, and are described in AU Patent No. 527,417; 5 shows a modified embodiment of a belt; FIG. 6 shows a view similar to FIG. 1, but showing the invention used in connection with a preferred method according to which the tube wound in helical form is expanded into a sewer or other conduit to be provided with a liner, and the figure shows a winding machine with a wreath, progressively forming the tube at the site and showing the method used to progressively expand the tube 15 at an appropriate time during the tube winding process; Figure 7 is a longitudinal sectional view of a modified embodiment of a device for expanding the wound tube using a vacuum method to maintain the tube diameter during the winding while the tube is progressively expanded from the end farthest from the winding machine; 8 shows, on a larger scale, equipment in an embodiment different from that of FIG. 7 to control the expansion of the tube; FIG. 9 is a view demonstrating the lining of a conduit, such as a sewer line according to the vacuum principle, in that the strip is formed into a tube of the machine which coils the strip so that the tube extends through the conduit and the figure shows an expansion control mechanism. of one in FIG. 8, and also shows means for controlling the locking of the overlapping edges of the belt; FIG. 10 shows how the tube can be applied to an additional driving force by means of a belt, the tube leaving the winding machine, which belt is indicated by 35 dotted lines in FIG. 9, FIG. 11 is a partial section of the winding machine similar to that of FIG. 9, but including the additional belt drive, FIG. 12 is a cross-section on a somewhat larger scale along the line 12-12 of the tube winding machine of FIG. 13, FIG. 13 is a side view of the tube winding machine showing the tube wound according to the invention projecting 5 from the machine; FIG. 14 is a horizontal section along line 14-14 of FIG. 13, showing the drive mechanism for the tube; FIG. 15 is a view similar to FIG. 13 and is a section along the line 13-13 of FIG. 12, showing the seal at this end of the tube, and in particular showing how the drive rollers and pressure rollers interact, and FIG. 16 is a somewhat larger scale view showing a portion of one of the drive rollers and a portion of a printing roller, and the figure shows how the outer periphery of the driving roller can press against the belt base to force the belt base against the printing roller.

Fig. l, 2 og 3 viser hvorledes et skruelinie-viklet rør 1 er placeret i en ledning 2, f.eks. en kloakledning, der skal forsynes med foring, hvor de to 20 ender af det afsnit af ledningen, der skal forsynes med foring, slutter i adgangshuller 3 udformet i en vejbane 4 eller lignende, hvilket rør 1 er indrettet til at blive ekspanderet ved hjælp af en rørekspander 5, som har en krop 6, der har et indvendigt aksialt 25 snekkehjul 7, der drives af en hydraulisk motor 8 med en tilgangsledning 9, der fører til en hensigtsmæssig hydraulisk kraftkilde.FIG. 1, 2 and 3 show how a helically wound tube 1 is located in a conduit 2, e.g. a sewer line to be provided with liner, wherein the two ends of the section of the line to be lined terminate in access holes 3 formed in a roadway 4 or the like, which tube 1 is arranged to be expanded by means of a tube expander 5 having a body 6 having an internal axial worm wheel 7 driven by a hydraulic motor 8 with an inlet line 9 leading to an appropriate hydraulic power source.

Akslen 10 på hvilken snekkehjulet 7 er monteret bærer et roterende hoved 11, som kan have en 30 yderflade med langsgående korrugeringer som vist ved den foreste ende, men som fortrinsvis har en række ruller 12, der som vist springer frem fra fladen langs det roterende hoved 11's periferi, således at båndets overlappende kanter bevæger sig på hinanden når der på-35 føres en tilstrækkelig kraft ved at det roterende hoved 11 drives i en sådan retning, at båndet i røret 1 7 DK 168497 B1 vikles op. Friktionspåvirkningen fra det roterende hoved 11 på røret 1 kan vælges ved at benytte passende indbyrdes afstande mellem rullerne 12.The shaft 10 on which the worm wheel 7 is mounted carries a rotating head 11 which may have an outer surface with longitudinal corrugations as shown at the front end, but preferably having a series of rollers 12 projecting from the surface along the rotating head. 11, so that the overlapping edges of the belt move on each other when sufficient force is applied by driving the rotating head 11 in such a direction that the belt in the tube is wound up. The frictional influence of the rotating head 11 on the tube 1 can be selected by using appropriate spacing between the rollers 12.

Dette udstyr har den virkning, at når rørekspan-5 deren drived fremad af de fremaddrivende skiver 16, der indgriber med det ekspanderede parti af røret 1, bevæges hovedet 11 fremad i røret i, og da hovedet er kileformet, vil dette i forbindelse med rotationen i opviklingsretningen progressivt ekspandere røret 1, 10 så det ligger an mod ledningen 2's indervæg.This equipment has the effect that as the tube expander is propelled forward by the propulsive discs 16 which engage the expanded portion of the tube 1, the head 11 is moved forwardly in the tube and, as the head is wedge-shaped, this will in connection with the rotation. in the winding direction, the tube 1, 10 progressively expands to abut the inner wall of the conduit 2.

Det er nødvendigt at røret l . har en længde, der er større end længden af ledningen 2, og hvor ad-komstforholdene nødvendiggør dette, kan røret 1 udføres i sektioner, som især vist i fig. 3, og efterhånden 15 som udvidelsen af røret l skrider frem, vil røret l's længde nødvendigvis blive mindre, men der kan adderes yderligere sektioner af røret 1 ved, at hosliggende ender af to aksialt flugtende, skruelinieviklede rør lægges an mod hinanden, og svejses eller på anden 20 måde fastgøres til hinanden ved kanterne 13, således at der som følge af det indbyrdes indgreb af de til hinanden låsende midler på de overlappende partier af rørene dannes en kontinuert rørlængde, som kan ekspanderes progressivt.It is necessary that the tube l. having a length greater than the length of the conduit 2, and where the access conditions necessitate this, the tube 1 may be formed in sections, as particularly shown in FIG. 3, and as the expansion of tube 1 progresses, the length of tube 1 will necessarily decrease, but additional sections of tube 1 may be added by abutting adjacent ends of two axially flush, helically wound tubes and welding or otherwise being attached to each other at the edges 13 so that, as a result of the interlocking of the interlocking means on the overlapping portions of the tubes, a continuous tube length is formed which can be expanded progressively.

25 Hvis nødvendigt kan rørekspanderen 5 assiste- res i sin fremadgående bevægelse ved hjælp af et spil 14 og et kabel 15, der løber om trisser 16 og er fastgjort til et anker 17 på hovedet 18, idet der anvendes en svirvel i kablet for at tillade, at det ro-30 terende hoved 11 roterer frit.If necessary, the tube expander 5 can be assisted in its forward motion by means of a winch 14 and cable 15 running around pulleys 16 and attached to an anchor 17 on the head 18, using a swivel in the cable to allow , that the rotating head 11 rotates freely.

Det ses, at i den i fig. 1, 2 og 3 viste udførelsesform benyttes et tidligere skruelinieviklet rør 1 i ledningen 2, hvilket rør 1 som tidligere nævnt kan være opbygget af sektioner så det får den nødvendi-35 ge længde, der tager hensyn til den kontraktion, som forekommer når røret 1 ekspanderes, og ekspansionen 8 DK 168497 B1 foretages i dette tilfælde mekanisk ved hjælp af den skridtvis fremadbevægede rørekspander -5 og rotationen af hovedet, hvorved båndet vikles op, hvilket tvinger røret 1 udad indtil der er opnået den krævede ekspan-5 sion.It will be seen that in the embodiment shown in FIG. 1, 2 and 3, a previously helical wound tube 1 is used in the conduit 2, which tube as previously mentioned may be constructed of sections to provide the necessary length to take into account the contraction occurring when the tube 1 in this case, the expansion is expanded mechanically by means of the step-forward tube expander -5 and the rotation of the head, thereby wound the belt, forcing the tube 1 outwards until the required expansion is achieved.

Fig. 4 og 5 viser hver en udformning af et bånd, hvor båndet i fig. 4 er et almindeligt bånd 20 med ribber og en pæreformet samlingsvulst 21, der indgriber med en langsgående sokkel 22, og som har en rib-10 beforsynet kant 23, der springer frem fra vulsten, og ved kanten af soklen 22 er en ribbeforsynet kant 24, således at disse kantribber tætner båndet, således at der ikke kan strømme et fluidum gennem samlingen.FIG. 4 and 5 each show an embodiment of a belt, the belt of FIG. 4 is a plain ribbon 20 with ribs and a bulb joint bead 21 which engages a longitudinal base 22 and has a rib-provided edge 23 projecting from the bead, and at the edge of the base 22 is a rib-shaped edge 24 , such that these edge strips seal the tape so that no fluid can flow through the joint.

Ribberne 25 har udvidede ender 26, der kan 15 have en hvilken som helst form, og hulrummene 27 mellem ribberne kan, når røret 1 er placeret som i fig.The ribs 25 have extended ends 26 which can be of any shape and the cavities 27 between the ribs can, when the tube 1 is positioned as in FIG.

1, tjene til at indeholde mørtel eller et andet tætningsmiddel, som på effektiv måde kan tætne røret 1 mod ledningen 2's indervæg.1, serve to contain mortar or other sealant which can effectively seal tube 1 against the inner wall of conduit 2.

20 Der kan anvendes forskellige udformninger af båndet som f.eks. antydet ved den i fig. 5 viste udformning, i hvilken en dobbeltvæg 28 ved den ene kant har en pæreformet samlingsvulst 29 med en sokkel 30 udformet på modstående kanter af hosliggende dele af 25 båndet, og båndet har også kantribber 32 og afstivningsribber 32.Various designs of the tape may be used, e.g. indicated by the one shown in FIG. 5, in which a double wall 28 at one edge has a bulbous joint bead 29 with a base 30 formed on opposite edges of adjacent portions of the belt, and the belt also has edge ribs 32 and stiffening ribs 32.

I den i fig. 6 viste modificerede udførelsesform, i hvilken komponenter, der svarer til komponenter i den forudbeskrevne udførelsesform, har samme henvis-30 ningstal som i denne, er det skruelinieviklede rør viklet i ledningen 2 ved hjælp af en viklemaskine 35, som kan være af den type, der senere vil blive beskrevet, og som tilføres et bånd 36 fra en tromle 37, og vikler båndet i skruelinie så det bliver til røret 35 1.In the embodiment shown in FIG. 6, in which components corresponding to components of the aforementioned embodiment have the same reference numerals as therein, the helical wound tube is wound in conduit 2 by means of a winding machine 35 which may be of the type which will be described later, and which is fed to a tape 36 from a drum 37, and wraps the tape in a helical manner to form the tube 35 1.

ifølge denne fremgangsmåde fortsætter viklingen indtil den fremadbevægede ende af røret 1 når enden 9 DK 168497 Bl af ledningen 2 fjernest fra viklemaskinen 35, hvorefter viklingen stoppes, og enden af røret ekspanderes ved at påføre en drejekraft på denne ende af røret, medens den anden ende fastholdes mod drejningen. Enden 5 15 af røret fastgøres igen til ledningen 2 og en rørekspander 5 indsættes i røret 1, hvilken rørekspander 5 igen er af tilspidset form, og kan være et massivt element med ruller som tilfældet var i fig.According to this method, the winding continues until the forward moving end of the tube 1 reaches the end 9 of the conduit 2 furthest from the winding machine 35, after which the winding is stopped and the end of the tube is expanded by applying a rotational force to this end of the tube while the other end held against the pivot. The end 5 15 of the pipe is reattached to the conduit 2 and a pipe expander 5 is inserted into the pipe 1, which pipe expander 5 is again of tapered shape and can be a solid element with rollers as in the case of FIG.

1, eller det kan være et oppusteligt element, men rør-10 ekspanderen i denne figur roteres ved hjælp af et kabel 38 med en kappe 39, der strækker sig til en hydraulisk motor 40 og er indrettet således, at medens kappen forbliver stillestående drives kablet 38, således at det påfører båndet en opviklende kraft via den rote-15 rende rørekspander 5.1, or it may be an inflatable member, but the tube expander in this figure is rotated by a cable 38 with a sheath 39 extending to a hydraulic motor 40 and arranged so that while the sheath remains stationary, the cable is driven. 38, so that it applies a winding force to the belt via the rotary stirrer 5.

Por at bevæge rørekspanderen 5 fremad gribes kappen 39 mellem to drivruller 41, der roteres ved hjælp af en hydraulisk motor 42, så kappen 39 med kablet 38 føres fremad, så rørekspanderen 5 drives 20 mod den anden ende af ledningen.To move the stirrer 5 forward, the sheath 39 is gripped between two drive rollers 41 which are rotated by a hydraulic motor 42 so that the casing 39 with the cable 38 is advanced, so that the stirrer 5 is driven 20 towards the other end of the line.

Opviklingen af røret, som følge af rotationen af rørekspanderen 5, kræver både at røret ekspanderes, og at dets længde forøges, og dette opnås ved samtidig at drive viklemaskinen 35, så den vedblivende former 25 båndet 36 til et rør, og på denne måde er det muligt at ekspandere røret 1 solidt i ledningen 2 og at tilføje den ekstra længde til det ekspanderede rør, der er nødvendig efterhånden som ekspansionen finder sted.The winding of the tube due to the rotation of the tube expander 5 requires both the tube to be expanded and its length increased, and this is achieved by simultaneously driving the winding machine 35, so that the persistent forms 25 the band 36 into a tube, and in this way is it is possible to expand the tube 1 solidly in the conduit 2 and to add the extra length to the expanded tube which is needed as the expansion takes place.

Det forstås, at der i den i fig. 6 viste udfø-30 relsesform benyttes mekanisk ekspansion af et rør 1 til kontakt med væggen i en ledning 2 ved på hensigtsmæssig måde at vikle båndet på stedet til et skruelinieviklet rør, at længden af det viklede rør forlænges med den længde, der er nødvendig til at kom-35 pensere for den yderligere båndlængde, der er behov for når røret er ekspanderet.It is understood that in the embodiment shown in FIG. 6, mechanical expansion of a tube 1 is used to contact the wall of a conduit 2 by conveniently winding the strip in situ to a helically wound tube, extending the length of the wound tube by the length required to to compensate for the additional band length needed when the tube is expanded.

10 DK 168497 B1 I den udførelses form af opfindelsen, der er il-lustrerert i fig. 7-15, er vist en modificeret fremgangsmåde til at ekspandere røret ved anvendelse af pneumatiske midler til at assistere ved ekspansionen af 5 det skruelinieviklede rør i ledningen 2.In the embodiment of the invention illustrated in FIG. 7-15, there is shown a modified method of expanding the tube using pneumatic means to assist in the expansion of the helical wound tube in conduit 2.

Som vist i fig. 7 er røret 1 placeret i ledningen 2 i ikke ekspanderet tilstand som i de tidligere tilfælde, men ekspanderes så efter at enden 15 af røret 1 er blevet ekspanderet så den indgriber med 10 ledningen 2's indervæg, og rørets progressive ekspansion sker ved hjælp af en tilspidset prop 45, som er udformet som et oppusteligt element, hvis forkant 46 har en sådan størrelse, at det lige passer ind i røret 1, så det danner en pneumatisk tætning.As shown in FIG. 7, the tube 1 is positioned in the conduit 2 in the non-expanded state as in the former cases, but is then expanded after the end 15 of the tube 1 has been expanded to engage the inner wall of the conduit 2 and the progressive expansion of the tube is effected by a tapered plug 45, which is formed as an inflatable member, the leading edge 46 of which is such that it fits snugly into the tube 1 to form a pneumatic seal.

15 Det er vist at et rør 47 fra denne prop stræk ker sig til et manometer 48, idet rørledningen 47 er forbundet til en ikke vist trykkilde.It is shown that a pipe 47 from this plug extends to a pressure gauge 48, the pipe 47 being connected to a pressure source not shown.

Viklemaskinen 35, som former båndet 36 fra tromlen 47, vikler igen båndet, således at de to kan-20 ter overlapper hinanden, og sammenlåser de to overlappende kanter med tilstrækkelig kraft til at opretholde dimensionen af det skruelinieviklede rør, således som det er formet, og når proppen 45 er blevet indsat for at tætne den ende, der ligger fjernest fra viklemaski-25 nen 35, forhindrer et vacuum i røret dette i at ekspandere under påvirkningen af den roterende afviklende kraft, der påføres røret.The winding machine 35 which forms the strip 36 from the drum 47 rewinds the strip so that the two edges overlap, and interlock the two overlapping edges with sufficient force to maintain the dimension of the helically wound tube as it is formed. and when the plug 45 has been inserted to seal the end which is farthest from the winding machine 35, a vacuum in the tube prevents it from expanding under the influence of the rotary unwinding force applied to the tube.

Vacuummet indføres gennem en membrantætning 49 ved hjælp af en rørledning 50, der fører fra en vacu-30 umenhed 51, og der er vist et manometer 52, der tillader at det korrekte tryk kan opretholdes mellem den tilspidsede prop 46 og membranen 49.The vacuum is introduced through a membrane seal 49 by means of a conduit 50 leading from a vacuum unit 51 and a pressure gauge 52 is shown which allows the proper pressure to be maintained between the tapered plug 46 and the membrane 49.

Vacuummet i denne del af røret holder røret på den krævede diameter, medens viklingen fortsætter, for-35 di viklingen som i det tidligere tilfælde må fortsætte for at kompensere for den båndmængde, der medgår til at 11 DK 168497 B1 danne den større diameter, efterhånden som røret 1 ekspanderes.The vacuum in this part of the tube keeps the tube at the required diameter while the winding continues, for the winding which in the former case must continue to compensate for the amount of tape that will cause the larger diameter to eventually form. as the tube 1 is expanded.

Som følge af det vacuum, der findes mellem proppen 45 og membrantætningen 49, bevæger proppen 45 5 sig fremad efterhånden som røret ekspanderer, således at der ikke er behov for en anden fremadrettet drivkraft.Due to the vacuum that exists between the plug 45 and the membrane seal 49, the plug 45 5 moves forward as the tube expands, so that no other forward driving force is needed.

Ekspansionen af det skruelinieviklede rør 1 finder dog ikke sted under påvirkning af et udadrettet 10 tryk fra proppen 45 som følge af dennes kileform, men da der er vacuum mellem proppen 45 og membranen 49 er det parti af røret 1, der ligger på den anden side af proppen 45's forreste del ikke under vacuum, og da dannelsen af røret 1 fortsætter ved, at båndet 36 15 vikles i maskinen 35's rørdannende parti, vil rotationskraften på dette parti af røret l, der ligger på den anden side af proppen, vikle båndet op, idet det forårsager en glidning mellem de overlappende kanter, således at båndet vikles i større diameter mod lednin-20 gen 2.However, the expansion of the helically wound tube 1 does not occur under the influence of an outward pressure from the plug 45 due to its wedge shape, but since there is a vacuum between the plug 45 and the membrane 49, the portion of the tube 1 located on the other side of the front portion of the plug 45 not under vacuum, and as the formation of the tube 1 continues as the band 36 is wound in the tube-forming portion of the machine 35, the rotational force on that portion of the tube 1 lying on the other side of the plug will wind up the band. , causing a slip between the overlapping edges so that the tape is wound in greater diameter towards the conduit 2.

Der er vist en mørtelmaskine 53, som har en afgangsledning 54 til tilførsel af fyldmateriale eller mørtel til ydersiden af røret 1 efterhånden som dette formes, og mørtlen føres fremad af det roterende 25 rør men tilføres afmålt, således at det sikres at der kun er tilstrækkeligt mørtel tilstede til at tætne røret 1 mod indersiden 2.There is shown a mortar machine 53 which has a discharge line 54 for supplying filler material or mortar to the outside of the tube 1 as it is formed, and the mortar is advanced by the rotary tube but fed metered so as to ensure that only sufficient mortar present to seal tube 1 against the inside 2.

Der kunne naturligvis benyttes andre midler til cementering istedet for mørtel.Of course, other means could be used for cementing instead of mortar.

30 Det ses også, at i den i fig. 7 viste udførel sesform sker ekspansionen af røret ved at røret fra enden 15 vrides progressivt fremad til den ende hvor viklemaskinen 35 er placeret, idet proppen 45 selv regulerer sin position, og kun bevæger sig fremad ef-35 terhånden som røret ekspanderer, for at opretholde den korrekte fastholdelse af røret til det sted hvor ekspansionen sker progressivt i fremadgående retning.It is also seen that in the embodiment shown in FIG. 7, the expansion of the tube is effected by the tube from the end 15 being progressively rotated forward to the end where the winding machine 35 is positioned, the plug 45 itself regulating its position, and only moving forward as the tube expands, to maintain the proper holding of the tube to the site of expansion progressively in the forward direction.

12 DK 168497 B112 DK 168497 B1

Den i fig. 8 viste udførelsesform omfatter en yderligere modifikation af den fremgangsmåde, der er beskrevet med henvisning til fig. 7 og i dette tilfælde anvendes et differenstryk til at hjælpe ekspansionen 5 af det skruelinieviklede rør.The FIG. 8 illustrates a further modification of the method described with reference to FIG. 7 and in this case a differential pressure is used to aid the expansion 5 of the helically wound tube.

I denne udførelsesform er røret 1 ekspanderet i en metalledning, såsom en kloak eller vandledning, og udstyret omfatter i dette tilfælde en anden membrantætning 57 monteret på en stang 58, som selv er dreje-10 ligt monteret på en forlængelse 59, ' som ender i en oppustelig membran 60, og forlængelsen 59 har åbninger ved 61 til at skabe forbindelse mellem en trykledning 62 og rummet i røret 1 mellem den anden membrantætning 57 og den oppustelige membran 60.In this embodiment, the tube 1 is expanded in a metal conduit, such as a sewer or water conduit, and the equipment in this case comprises a second membrane seal 57 mounted on a rod 58 which itself is pivotally mounted on an extension 59 ending in an inflatable membrane 60, and the extension 59 has openings at 61 for connecting a pressure conduit 62 to the space in the tube 1 between the second membrane seal 57 and the inflatable membrane 60.

15 Elementet 58-61 danner en prop svarende til proppen 45.The element 58-61 forms a plug corresponding to the plug 45.

Både den anden membran 57 og den oppustelige membran 60 kan på forhånd være oppustede til deres ønskede effektive diameter, men begge disse elementer 20 57 og 60 kunne have en forudvalgt størrelse uden op-blæsning, eller de kunne begge have rørledninger til trykorganer, således at de begge kunne oppustes til et krævet tryk under driften.Both the second diaphragm 57 and the inflatable diaphragm 60 may be pre-inflated to their desired effective diameter, but both of these elements 20 57 and 60 may have a preselected size without inflation or they may both have tubing for pressure means so that they could both be inflated to a required pressure during operation.

Hensigten med udstyret i fig. 8 er at holde va-25 cuummet i røret 1 mellem den anden mémbrantætning 57 og den første membrantætning 49 ved viklemaskineenden af røret 1, men er også at påføre et ekspansions tryk mellem den anden membrantætning 57 og den oppustelige membrantætning 60, således at denne del af røret l 30 understøttes i sin ekspansion ved påføring af et tryk mod røret l's inderside.The purpose of the equipment of FIG. 8 is to hold the vacuum in the tube 1 between the second membrane seal 57 and the first membrane seal 49 at the winding machine end of the tube 1, but is also to apply an expansion pressure between the second membrane seal 57 and the inflatable membrane seal 60 so that this part of the tube 1 30 is supported in its expansion by applying a pressure to the inside of the tube 1.

Der er fastspændingsmidler 63, der holder røret l's ende 15 fast mod lednignen 2.There are clamping means 63 which hold the end 15 of the pipe 1 against the guide 2.

Der er yderligere vist en ledning 64 til påfø-35 ring af et tryk mellem den anden membrantætning 57 og den yderligere membran 60.A conduit 64 is further shown to apply a pressure between the second membrane seal 57 and the additional membrane 60.

13 DK 168497 B113 DK 168497 B1

Det forstås at i denne udførels'esform af udstyret kan der opretholdes en særdeles effektiv styring af de forskellige sektioner af ledningen 2 under dannelsen af røret 1 og ekspansionen af røret, og stangen 5 58 og forlængelsen 59 sammen med den anden membran tætning 57 og den oppustelige membran 60 bevæger sig fremad automatisk som følge af vacuummet, der er påført mellem den anden membrantætning 57 og den første membrantætning 59, idet den oppustelige membran 10 60 styrer den fremadgående bevægelse, idet den som følge af sin dimension kun vil tillade aggregatet at bevæge sig fremad, idet røret 1 ekspanderes til sin fulde diameter mod ledningen 2's indervæg.It is understood that in this embodiment of the equipment a highly effective control of the various sections of conduit 2 during the formation of the tube 1 and the expansion of the tube can be maintained and the rod 58 and the extension 59 together with the second membrane seal 57 and the inflatable diaphragm 60 moves forward automatically due to the vacuum applied between the second diaphragm seal 57 and the first diaphragm seal 59, the inflatable diaphragm 10 60 controlling the forward movement, because of its dimension, it will only allow the assembly to move Forward, the tube 1 is expanded to its full diameter against the inner wall of the conduit 2.

For at understøtte virkningen kan trykket i try-15 trykledningen 52 pulsere, så den del af røret, der skal ekspanderes påføres en hammervirkriing.To support the action, the pressure in the pressure line 52 may pulsate so that the portion of the tube to be expanded is applied to a hammer action.

Fig. 9-16 viser yderligere detaljer af en fore-trukken udførelsesform, i hvilken røret 1 vikles i en ledning 2 under anvendelse af en viklemaskine og et 20 rørekspansionsmiddel som nærmere vist i fig. 8, og viklemaskinen omfatter stativelementer 70, 71 og 72, hvor elementerne 71 og 72 bærer drivende ruller 73, der har ringformede ribber langs omkredsen, og som matcher med korrugeringerne i båndet, der formes til 25 røret, og disse ruller, såvel som yderligere mellemruller 74 af en lignende konfiguration, danner mellem sig en krans, og er drevet ved hjælp af en rem 75 via universalled, og de drevne ruller 74 samvirker med trykruller 77, så de leder båndet 36 i en bane, der 30 forløber som en skruelinie, og tjener som hosliggende midter til at presse de overlappende kantpartier af båndet sammen.FIG. Figures 9-16 show further details of a preferred embodiment in which the tube 1 is wound in a conduit 2 using a winding machine and a tube expansion means as further shown in FIG. 8, and the winding machine comprises rack members 70, 71 and 72, the members 71 and 72 carrying driving rollers 73 having annular ribs along the circumference which match the corrugations in the belt formed to the tube and these rolls, as well as further intermediate rollers 74 of a similar configuration form between them a wreath and are driven by means of a belt 75 via universal joints, and the driven rollers 74 cooperate with pressure rollers 77 to guide the band 36 in a path extending 30 as a helical line. , and serve as adjacent centers to compress the overlapping edge portions of the tape.

Båndet træder ind i viklemaskinen 35 mellem to ruller 78 og 79, hvor rullerne 79 ligeledes har 35 omkredsribber for på korrekt måde at lede båndet.The belt enters winding machine 35 between two rollers 78 and 79, the rollers 79 also having 35 circumferential ribs to properly guide the belt.

Båndet drives ind i viklemaskinen 35 ved hjælp af to ruller, hvor den første rulle 80 er en drevet 14 DK 168497 B1 rulle, der drives ved hjælp af en hydraulisk motor 81, og den anden rulle 82 er en ribbeforsynet rulle, hvor ribberne ligeledes løber langs omkredsen, så de indgriber med båndet 36 og formålet med denne konstruktion 5 er at tillade båndet at blive drevet pålideligt ved, at de i fig. 16 viste periferiribber indgriber med båndet 36's basis 83, således at der af de to ruller overføres den størst mulige drivende kraft til båndet.The belt is driven into the winding machine 35 by means of two rollers, the first roller 80 being a driven roller driven by a hydraulic motor 81 and the second roller 82 being a ribbed roller in which the ribs also run. along the circumference so that they engage with the belt 36 and the purpose of this construction 5 is to allow the belt to be reliably driven by the fact that in FIG. 16 engages with the base 83 of the belt 36, so that the greatest possible driving force is transmitted to the belt by the two rollers.

Konfigurationen af rullerne 73 og rullerne 77 10 er indrettet på lignende måde for at opnå maksimal drivkraft og styring af røret under formningen.The configuration of the rollers 73 and rollers 77 10 is similarly arranged to obtain maximum driving force and control of the tube during molding.

Trykrullerne 77 bæres på aksler 84, som rager ud fra stativelementet 72, og som afsluttes i nærheden af membrantætningen 49, og membrantætningen 15 49 kan bæres af disse rullers aksler, således at membranen kan indtage en stilling indenfor drivrullerne 73's område, således at båndet, når det formes til det skrueviklede rør 1, bæres fuldstændig, og har en ind-adrettet belastning fra vacuummet mellem membrantætnin-20 gen 49 og den anden membrantætning 57.The pressure rollers 77 are supported on shafts 84 projecting from the stand member 72 and terminated in the vicinity of the membrane seal 49, and the membrane seal 15 49 may be supported by the shafts of these rollers so that the membrane can take a position within the area of the driving rollers 73 so that the belt, when formed into the screw-wound tube 1, is fully supported, and has a loaded load from the vacuum between the membrane seal 49 and the second membrane seal 57.

Hvis det findes nødvendigt, kan røret 1 yderligere drives ved hjælp af en rem 85, der passerer omkring røret 1 i nærheden af det punkt hvor det træder ud fra drivrullerne 73, og dette parti af røret 25 1 kan bæres af en tromle 86 med et konisk indløb 87 monteret på en aksel 88 båret i membrantætningen 49.If necessary, the tube 1 can be further driven by a belt 85 passing around the tube 1 near the point where it exits from the drive rollers 73 and this portion of the tube 25 1 can be carried by a drum 86 with a conical inlet 87 mounted on a shaft 88 carried in the membrane seal 49.

Remmen er ført rundt om rørets største periferi som vist i fig. l, og drives fra en remskive 89 og 30 to fritløbende remskiver 90, som er indrettet til at blive indstillet for at opretholde remmens spænding. Remskiven 89 drives af en hydraulisk motor 91.The strap is passed around the largest circumference of the tube as shown in FIG. 1, and driven from a pulley 89 and 30 two free-running pulley 90 which is adapted to be adjusted to maintain belt tension. The pulley 89 is driven by a hydraulic motor 91.

De punkterede linier i fig. 12 viser hvorledes remmen 75, der driver drivrullerne 73, kan føres 35 omkring remskiver 92 og en drivende remskive 93, som drives ved hjælp af en hydraulisk motor 94.The dotted lines in FIG. 12 shows how the belt 75 driving the drive rollers 73 can be driven 35 around pulleys 92 and a driving pulley 93 driven by a hydraulic motor 94.

15 DK 168497 B1DK 168497 B1

Membrantætningen 49 har en åbning, der tillader at et vacuumrør 95 kan passere igennem, og gennem membrantætning 49 går også en afblæsningsstyreventil 97.The membrane seal 49 has an opening which allows a vacuum tube 95 to pass through, and through membrane seal 49 also a blow-off control valve 97.

5 En ekstra række af ruller 96 er placeret mel lem drivrullerne 73 for at forøge understøtningen af båndet 36, idet det føres rundt i skrueliniebane.An additional row of rollers 96 is positioned between the drive rollers 73 to increase the support of the belt 36 as it passes around the helical path.

Som følge af at samlingen mellem de overlappende dele af båndet på reguleret måde skal glide mod hinan-10 den, er det nødvendigt at tilvejebringe midler til at styre og fastlåse eller fastholde samlingen, og ifølge opfindelsen er der på udvalgte steder midler, såsom en wire eller et pulver eller et specifikt materiale, som kan være et plastmateriale, der kan behandles efter 15 dannelsen af strukturen for at bevirke, at mateialet flyder og danner en permanent samling i overlapningspunkter eller hvor der skal være samlinger eller tætninger, og dette materiale kan danne et smøremiddel under viklingen og under påfølgende dimensionsændringer, 20 og kan derefter stivne eller ændres for at forhindre yderligere slip.Due to the fact that the joint between the overlapping portions of the belt is slid towards each other in a controlled manner, it is necessary to provide means for controlling and locking or retaining the joint, and according to the invention there are means such as a wire or a powder or specific material which may be a plastic material which can be treated after the formation of the structure to cause the material to flow and form a permanent joint at overlap points or where there should be joints or seals and this material may form a lubricant during the winding and under subsequent dimensional changes, and may then solidify or be changed to prevent further slip.

Fig. 9 viser et typisk eksempel på dette, hvor et smøremiddel, der holdes i en fødetank 97 har et styreorgan 98 til styring af tilgangsstrømmen gennem 25 et rør 99 til det område af båndet 36, hvor kanterne overlapper hinanden, lige før samlingen sker.FIG. 9 shows a typical example of this, in which a lubricant held in a feed tank 97 has a control means 98 for controlling the flow of access through a pipe 99 to the area of the band 36 where the edges overlap, just before the assembly occurs.

Det oppustelige parti 60 af rørekspanderen 5 bærer et ringformet afsnit 100, i hvilket der er et organ såsom en varmetråd eller højfrekvensmidler, hvor-30 med karakteren af smøremidlet kan ændres til at udgøre et holdemiddel.The inflatable portion 60 of the stirrer 5 carries an annular portion 100 in which there is a member such as a heating wire or high frequency means, with which the nature of the lubricant may be changed to form a holding means.

Det benyttede smøremiddel kan være en langsomt hærdende polyurethanklæber, der når den påføres er i flydende tilstand og tillader og understøtter glidnin-35 gen, men som efter nogen tid størkner, så den tætner og sikrer mod yderligere glidning.The lubricant used may be a slow-curing polyurethane adhesive which, when applied in liquid state, allows and supports the sliding, but which after some time solidifies to seal and secure against further slipping.

16 DK 168497 B116 DK 168497 B1

Der kan også benyttes en tokomponent blanding som kan blandes og påføres båndets overlappende dele, og som tillades at hærdne ved kemisk reaktion efter at røret er blevet ekspanderet.A two-component mixture can also be used which can be mixed and applied to the overlapping portions of the tape and allowed to cure by chemical reaction after the tube has been expanded.

5 Der kan ligeledes benyttes et hot-melt klæbemid del, som bliver tykkere efterhånden som det afkøles, eller der kan påføres en termohærdende blanding, som kan hærdnes ved opvarmning efter ekspansion af røret ved hjælp af en indretning som vist ved 100 i fig. 9, 10 eller der kan benyttes en hot-melt eller et andet klæbestof, som kan benyttes i et system som vist i fig.A hot adhesive portion may also be used which becomes thicker as it cools, or a thermosetting composition can be applied which can be cured by heating after expansion of the tube by means of a device as shown at 100 in FIG. 9, 10 or a hot melt or other adhesive which can be used in a system as shown in FIG.

7, i hvilket klæbestoffet blødgøres, idet det påføres, men stivner som et tætningsmiddel umiddelbart efter at røret 1 er viklet, så røret låses mod ekspansion, me-15 dens det vikles ind i ledningen 2, men kroppen 45 eller delen 57 i fig. 8 opvarmes for at smelte klæbestoffet for at tillade det fortsatte vikleforløb at ekspandere røret 1 mod ledningen 2. -7, in which the adhesive is softened as it is applied, but solidifies as a sealant immediately after the tube 1 is wound, so that the tube is locked against expansion as it is wound into the conduit 2, but the body 45 or part 57 of FIG. 8 is heated to melt the adhesive to allow the continued winding process to expand tube 1 toward conduit 2. -

Et pulver såsom et metalpulver kan også være på-20 ført båndet ved samlingen, eller kan være viklet med ind i båndet i nærheden af et område, hvor der kræves styring, og dette pulver kan opvarmes ved hjælp af højfrekvensinduktionsmidler for at smelte plasten tilstrækkelig til at danne en permanent samling ved hjælp 25 af en indbyrdes plastisk flydning mellem de to overflader, der er i berøring med hinanden ved de overlappende ender, eller der kan vikles en wire ind i båndets i hinanden indgribende elementer, og wiren kan opvarmes lokalt på udvalgte steder ved hjælp af mikrobølgemid-30 ler.A powder such as a metal powder may also be applied to the tape at the assembly, or may be wound into the tape near an area where control is required, and this powder may be heated by high frequency induction means to melt the plastic sufficiently. forming a permanent joint by means of a mutual plastic flow between the two surfaces which are in contact with each other at the overlapping ends, or a wire can be wound into the interlocking elements of the belt and the wire may be locally heated on selected locations using microwave agents.

Ved at benytte et højfrekvensopvarmningssystem er det muligt også at vælge plasten, således at klæbningen sker automatisk fordi selve plasten istedet for at indeholde et ledende pulver, kan vælges således, at 35 opvarmningen vil ske i en relevant position, ved f.eks. under ekstrusionen at variere plastindholdet eller til-By using a high frequency heating system it is also possible to select the plastic so that the adhesive is done automatically because the plastic itself instead of containing a conductive powder can be chosen so that the heating will take place in a relevant position, e.g. during extrusion to vary the plastic content or

Claims

A method of lining or winding 30 wires (2), comprising a tube (1) made by winding a band (36) in helical position adjacent to the area to be lined or wound, in which tube (1) the edges of the band (36) overlap and engage with each other, characterized in that (a) the tube (1) is held below the position at a selected diameter which is smaller than the lining and when winding is larger B1 (b) applying a force causing the interlocking edges to slide on one another, thereby progressively changing the diameter of the tube (1) to engage the wall of the conduit and then the tube (1) being fixed. is kept with the changed diameter.

Method according to claim 1, for lining a conduit, characterized in that a selected portion of the pipe (1) is wound so that it engages with the wall of the conduit (2) and the pipe (1) progressively wound outwardly therefrom, so that the rest of the tube (1) engages with the wall of the conduit.

Method according to claim 2, characterized in that the portion (1) of the pipe (1) engaging the conduit (1) is further fixed in relation to the conduit (2).

A method according to claim 3, characterized in that, on the overlapping edges of the tube (1), a means is optionally applied discontinuously by means of which the sliding between the intervening 20 edges can be controlled, and that this means is possibly affected by breakage during the sliding, so that this is regulated in selected portions of the tube which are progressively twisted to change the diameter.

Method according to claim 1 for lining a wire, characterized in that a winding machine (35) is placed in a selected section of the wire (2), that a belt (36) is fed to the winding machine (35) and wound to a pipe. (1) so that the tube (1) moves through the conduit (2) so that the end of the conduit furthest from the winding machine (35) is wound so that it engages with the conduit (2) when the area to be fed or wound is covered, that the far end of the tube (1) is held fixed relative to the conduit (2) and the winding of the tube (1) from the belt (36) in the winding machine (35) is continued so that the remaining 35 portion of the tube engages the conduit (2). wall.

Method according to claim 1 and used for lining a wire (2), characterized in that a winding machine (35) is placed at the end of the wire (2) for feeding a tape (36) to the winding machine (35). ) and wound to a tube (1) so that the tube (1) moves through the conduit (2) to the farthest end of the conduit (2), 5 to be extended to expand the farthest end of the conduit (1) the tube (1) to a larger diameter by sliding the overlapping edges of the strip (36) relative to each other, holding the expanded farthest end of the tube (1) fixed to the conduit (2), a tube expander (5) is inserted into the expanded end of the tube (1) and the tube expander (5) is moved toward the winding machine (35) so that the tube is progressively expanded toward the end of the tube by the winding machine.

Method according to claim 6, characterized in that at least one part (11, 12) of the tube expander (5) is rotated so that a sliding occurs between the overlapping edges of the strip (36) so that the diameter of the tube (1) ) while the tube expander (5) 20 is moved toward the winding machine (35) at the end of the tube (1) while continuing to wrap the tape (36) to the tube.

Method according to claim 6, characterized in that the tube expander is formed as a plug (45, 57-60) is inserted into the expanded end of the tube (1) and the plug (45, 57-60) is moved towards the winding machine. so that the tube (1) of the winding action is expanded toward the end of the tube by the winding machine.

Method according to claim 8, characterized in that a vacuum is maintained in the tube (1) between the winding machine (35) and the plug (45, 57), thereby preventing the tube (1) from expanding between the winding machine (35). and the plug (45, 57).

Method according to claim 9, characterized in that the plug (57-60) is tapered and its thinner end (57) forms a pneumatic seal in the pipe (1), while the thicker portion (60) of the plug (57-60) engages and causes a portion of the tube (1) to expand and the plug (57-60) progressively moved toward the winding machine (35) by the vacuum in the tube (i).

Method according to claim 10, characterized in that the thinner end (57) of the plug (45) and the thicker end (60) of the plug are spaced apart to form between them a chamber in the tube (1), 10 and pressurizing the chamber so that the tube is applied to an expanding force between the thinner '(57) and the thicker (60) portion of the plug (57-60).

Method according to any one of the preceding claims, characterized in that a means for controlling the sliding between the overlapping edges of the strip (36) is applied while being wound to the tube (1) and this means is modified after the diameter of the tube (1) has been modified to prevent further slipping.

Method according to claims 1-11, characterized in that an adhesive is applied between the pipe (1) and the conduit (2) for adhering the pipe (1) to the conduit (2) when the pipe (1) engages the wall of the conduit. (2).

A method according to claims 8-11, characterized in that a means for applying the slip between the overlapping edges of the belt (36) while the belt (36) is wound to the tube (1), which means is adapted to cure, so that the tube (1) is prevented from expanding as it is wound forward in the conduit (2) and that the means is arranged to be temporarily liquefied at the plug (45, 57-60) to allow the tube to expand as a result of the winding force.

Method according to claims 8-11, characterized in that a conductor is wound into the joint between the overlapping portions of the pipe (1) band and that selected parts of the conductor or wire are heated with microwave means for heating. sealing the tube (1) against diameter changes after the tube (1) has been expanded.

Instead of being a powder, the material may be a liquid or conductive agent in liquid stream which may be placed at the interface if required, and this material may itself be selected so that when heated it will adhere to the liquid. plastic at the interface to cause the plastic materials adjacent to the interface to close tightly and homogeneously. Likewise, as shown in FIG. 4 cover the assembly so that it should burst to allow sliding during a twist of the tube so that this can change its diameter.

16. Conduit lining equipment in which 5 a belt (36) is wound into a helical line to form a tube (1) by causing the edges of the belt (36) to overlap, which belt has engagement means (21). , 22, 29, 30) along the overlapping edges to provide means for controlling sliding, characterized by a tube expander (5) to change the diameter of the tube (1) and comprising means (11, 12, 45, 57-61) to engage with the tube and progressively apply the tube to a localized twisting force to cause a slip between the overlapping edges of the ribbon to change the diameter of the tube progressively.

Device according to claim 16, characterized in that it comprises means (11 *, 12, 45, 57-61) for changing the diameter of the pipe (1) when positioned above or in a conduit (2) which is to be 20, or means which are designed to progressively twist the remainder of the tube so that it progressively engages with the cord from the expanded end of the tube (1).

17 DK 168497 B1 sets another plastic component to allow the heating to occur at the interface, and it is understood that since the material being heated can be placed at the exact location where the plastic must be able to flow to form the assembly, the remaining portion of the strip will using the invention remain unaffected, but all overlapping portions will be joined to each other in the relevant positions, so that the plastic at the joint surface will be influenced to flow sufficiently 10 to permanently adhere the two sections together by plastic flow. In cases where the plastic is not a thermoplastic, it is still possible to exert a control by using a hot-mix or the like which adheres to the plastic.

Apparatus according to claim 16 and for placing a pipe (1) in a conduit (2) and expanding the pipe, characterized in that it comprises a winding machine (35) having a wreath of rollers (73, 74) and pressure rollers (77) arranged to define a helical line during the winding, means for feeding a belt (36) to the rollers (73, 74, 77) in the winding machine (35), means (75) for driving the rollers ( 73, 74) in the wreath such that the tube (1) is inserted into the conduit (2) as it is formed so that it extends over the area of the conduit (2) to be fed, a tube expander (5) engaging a the expanded end of the tube (1) furthest from the winding machine (35), which expander is tapered to engage the expanded tube (1), and means (16, 22, 169, 49, 49-51) to drive the expander (5) through the tube (1) toward the winding machine (35) to expand the tube (1) progressively.

Equipment according to claim 18, characterized in that the tube expander (5) comprises means (16) for engaging an expanded portion of the tube (1) to propel the expander (5) forward, and means (11, 12). ) to progressively expand the tube (1) by twisting the tube so that the overlapping edges of the tape slide on one another.

Equipment according to claim 19, characterized in that the means for expanding the tube (1) comprises a tapered head (11) with rollers (12) projecting from the surface of the head so that they roll against the turns of the belt (36), forming the tube (1).

The saucer according to claim 19, characterized in that the tube expander (5) is tapered and its thin end is dimensioned to engage the tube (1) and its thick end is dimensioned to actuate the expanded tube (1). towards the conduit (2) and that there are spaced apart means (38-40) from the tube expander (5) for rotating the tube expander.

Apparatus according to claim 16 and for placing a tube in a conduit and expanding the tube, characterized in that it comprises a winding machine (35) with a wreath of rollers (73, 74) and pressure rollers (77). arranged to establish a helical line during the winding, means for feeding a belt (36) to the rollers (73, 74, 77. of the winding machine (35), means for driving the rollers 30 (73, 74) in the wreath so that the tube (1) is inserted into the conduit (2) as it is formed to extend over the area of the conduit (2) to be lined, a membrane seal (49) sealing the end of the tube (1) by the winding machine (35) ), means (50, 51) for vacuuming the tube (1) through the membrane seal (49), a tapered plug (45) engaging the tube (1) at a distance from the winding machine (35) whereby a vacuum is formed in the tube (1) between the membrane seal (49) and the plug (45) so that the plug (45) is pulled forward toward the winding machine after the tube (1) has been wound t so that it extends over the area of the line to be routed and the end of the tube (1) furthest from the winding machine (35) has been expanded to engage the line (2), thereby progressively expanding the tube (1) the other side of the plug (45) with continued winding of the belt (36) by the winding machine (35).

Equipment according to claim 22, characterized in that the plug (48) is elongated and comprises a second membrane seal (57) for fitting into the tube (1) and a membrane (60) for engaging the expanded part of the tube (1). said diaphragm seal (57) and diaphragm (60) being held apart by a rod (58, 59) and a pressure conduit (64) entering said space between said diaphragm seal (57) and diaphragm (60).

Equipment according to claim 16, characterized in that it comprises means for applying to the overlapping edges of the belt (36) a sliding regulating means, which means comprises a feeding tank (97), a flow control means (98) and a pipe. (99) ending between the edges of the tape (36) to overlap each other such that this agent is applied between the overlapping edges of the tape (36).

Apparatus according to claim 16, characterized in that it comprises means (100) of the tube expander (5) for modifying the sliding regulating means, so that the friction between the overlapping edges of the belt is reduced.

Equipment according to claim 16 and comprising means for winding the belt in helical form to form a tube (1), characterized in that the means is a 35 winding machine (35) with rack elements (70, 71, 72) carrying a wreath of drive rollers (73, 74) and drive means DK 168497 B1 24 (75, 92-94) for these, pressure rollers (77) for pressing the belt (36) against the drive rollers (74), shafts (84) carrying the pressure rollers ( 77) in one of the frame members (72), a first driving roller (80) and a second roller (82) arranged to press the belt against the driving roller (80) to feed the belt to the rim of rollers, a membrane seal (49) carried by the shafts (84) arranged for placement in the tube wound by means of the winding machine, and the drive rollers (73, 74) extend over the membrane seal (49).

Equipment according to claim 26, characterized in that it comprises a drum (86) located in the tube (1) adjacent to the membrane seal (49), a shaft carrying the drum (86) from the membrane seal (49), a belt (85) surrounding the tube (1) over the drum (16) and means (91-93) for driving the belt (85). 20 30 35 4