NO144732B - WELDING APPLIANCES FOR ARTICLES. - Google Patents

WELDING APPLIANCES FOR ARTICLES. Download PDF

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Publication number
NO144732B
NO144732B NO764389A NO764389A NO144732B NO 144732 B NO144732 B NO 144732B NO 764389 A NO764389 A NO 764389A NO 764389 A NO764389 A NO 764389A NO 144732 B NO144732 B NO 144732B
Authority
NO
Norway
Prior art keywords
welding
rollers
shoe
welding apparatus
webs
Prior art date
Application number
NO764389A
Other languages
Norwegian (no)
Other versions
NO764389L (en
NO144732C (en
Inventor
Wolfgang Neidhart
Original Assignee
Sarna Kunststoff Ag
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 CH118176A external-priority patent/CH608417A5/en
Priority claimed from CH1616176A external-priority patent/CH618627A5/en
Application filed by Sarna Kunststoff Ag filed Critical Sarna Kunststoff Ag
Publication of NO764389L publication Critical patent/NO764389L/en
Publication of NO144732B publication Critical patent/NO144732B/en
Publication of NO144732C publication Critical patent/NO144732C/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint 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
    • B29C66/112Single lapped joints
    • B29C66/1122Single lap to lap joints, i.e. overlap joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B29C65/2053Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position
    • B29C65/2061Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position by sliding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B29C65/2053Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position
    • B29C65/2084Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position by pivoting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/82Testing the joint
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/20Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/23Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
    • B29C66/232Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/40General 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
    • B29C66/41Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43Joining a relatively small portion of the surface of said articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/814General 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 design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141General 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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433General 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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/816General 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
    • B29C66/8161General 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/82Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822Transmission mechanisms
    • B29C66/8221Scissor or lever mechanisms, i.e. involving a pivot point
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/836Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • B29C66/8362Rollers, cylinders or drums moving relative to and tangentially to the parts to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/84Specific machine types or machines suitable for specific applications
    • B29C66/865Independently movable welding apparatus, e.g. on wheels
    • B29C66/8652Independently movable welding apparatus, e.g. on wheels being pushed by hand or being self-propelling
    • B29C66/86521Independently movable welding apparatus, e.g. on wheels being pushed by hand or being self-propelling being self-propelling
    • B29C66/86523Independently movable welding apparatus, e.g. on wheels being pushed by hand or being self-propelling being self-propelling the traction being made on the seam
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/82Testing the joint
    • B29C65/8207Testing the joint by mechanical methods
    • B29C65/8246Pressure tests, e.g. hydrostatic pressure tests
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/814General 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 design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141General 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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411General 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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415General 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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B29C66/81417General 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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled being V-shaped
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/814General 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 design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141General 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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411General 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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421General 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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81422General 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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being convex

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

Oppfinnelsen angår et sveiseapparat for kunststoffbaner, omfattende en husramme, en foran sammenføyningsstedet for banene anordnet oppvarmingsinnretning for oppvarming av banene, og en øvre og nedre sveiseføring som er anordnet direkte over hverandre og holder sammen det oppvarmede sveisegods,og av hvilke den nedre danner en del av sveiseapparatet og er mekanisk fast forbundet med husrammen eller den øvre sveiseføring for ved sveising å danne en utelukkende på sveisegodset av-støttet enhet for å tilveiebringe en sikker og god sveis også ved dårlig underlag. The invention relates to a welding apparatus for synthetic webs, comprising a housing frame, a heating device arranged in front of the joining point of the webs for heating the webs, and an upper and lower welding guide which is arranged directly above each other and holds together the heated welding material, of which the lower forms a part of the welding apparatus and is mechanically firmly connected to the housing frame or the upper welding guide in order to form, when welding, a unit supported exclusively on the welding material to provide a safe and good weld even on poor surfaces.

Ved fåring av bygninger, f.eks. ved tunnelbygning, med kunststoffbaner opptrer det ved sveising av disse vanskelig-heter fordi kunststoffbanene som skal sveises sammen må ha et riktig underlag for sveiseapparatet resp. deler av dette for at sveisesømmen skal bli feilfri. Underlaget har imidlertid ikke alltid en glatt overflate som kan tjene som motlager for kunststoffbanene under sveisingen, slik at man hittil har forsøkt å hjelpe seg med L-formede ombøyninger av banekantene på undersiden. Ved tynne kunststoffbaner kan dette være en hjelp, idet sveisestedet får en omlegning i kunststoffbane-planet. Ved tykkere kunststoffbaner f.eks. en tykkelse av noen millimeter, er denne fremgangsmåte ikke lenger mulig i praksis. When obtaining buildings, e.g. in the case of tunnel construction, with plastic tracks, these difficulties arise when welding because the plastic tracks to be welded together must have a suitable base for the welding apparatus or parts of this in order for the weld seam to be error-free. However, the substrate does not always have a smooth surface that can serve as a counter-bearing for the plastic webs during welding, so that up until now attempts have been made to help with L-shaped bends of the web edges on the underside. In the case of thin synthetic webs, this can be a help, as the welding spot is reshaped in the plane of the synthetic web. For thicker plastic webs, e.g. a thickness of a few millimeters, this method is no longer possible in practice.

Hensikten med oppfinnelsen er derfor å tilveiebringe et sveiseapparat som uavhengig av beskaffenheten av den overflate som skal dekkes tillater en overlappingssveis av de to kunststoffbanekanter, slik at sveisingen får en upåklagelig kvalitet som er økonomisk gjennomførbar. The purpose of the invention is therefore to provide a welding apparatus which, regardless of the nature of the surface to be covered, allows an overlapping weld of the two plastic track edges, so that the welding achieves an impeccable quality that is economically feasible.

Dette oppnås ifølge oppfinnelsen ved at oppvarmingsinn-retningen er utformet som kontaktoppvarmingslegeme med fortrinnsvis kileform, og at sveiseføringene er utformet som rullesveisesko som er forbundet med hverandre ved en bøyet arm, en svanehals eller lignende. This is achieved according to the invention in that the heating device is designed as a contact heating body with preferably a wedge shape, and that the welding guides are designed as roller welding shoes which are connected to each other by a bent arm, a gooseneck or the like.

Ytterligere trekk ved oppfinnelsen vil fremgå av Further features of the invention will be apparent from

kravene 2-6. requirements 2-6.

To utførelseseksempler på oppfinnelsen skal neden-for forklares nærmere under henvisning til tegningene. Fig. 1 viser skjematisk i sideriss en første ut-førelses form av et sveiseapparat ifølge oppfinnelsen med to over hverandre liggende kunststoffbaner som skal sveises sammen. Fig. 2 viser et snitt langs linjen II-II på fig. 1 hvor deler av apparatet er utelatt. Fig. 3 viser et snitt langs linjen III-III på fig. 1 hvor deler av apparatet er utelatt. Fig. 4 viser i perspektiv et apparat ifølge oppfinnelsen. Fig. 5 viser et apparat ifølge oppfinnelsen i perspektiv med innlagte kunststoffbaner. Fig. 6 viser sveiseapparatet på fig. 4 og 5 i snitt langs linjen VI-VI på fig. 1. Fig. 7 viser skjematisk og i sideriss en annen ut-førelsesform av et apparat ifølge oppfinnelsen med to over hverandre liggende kunststoffbaner som skal sveises sammen. Two embodiments of the invention will be explained in more detail below with reference to the drawings. Fig. 1 schematically shows a side view of a first embodiment of a welding apparatus according to the invention with two plastic webs lying one above the other to be welded together. Fig. 2 shows a section along the line II-II in fig. 1 where parts of the apparatus are omitted. Fig. 3 shows a section along the line III-III in fig. 1 where parts of the apparatus are omitted. Fig. 4 shows in perspective an apparatus according to the invention. Fig. 5 shows an apparatus according to the invention in perspective with embedded plastic webs. Fig. 6 shows the welding apparatus in fig. 4 and 5 in section along the line VI-VI in fig. 1. Fig. 7 shows schematically and in side view another embodiment of an apparatus according to the invention with two plastic webs lying one above the other to be welded together.

Fig. 8 viser et snitt langs linjen VIII-VIII på Fig. 8 shows a section along the line VIII-VIII on

fig. 7. fig. 7.

Fig. 9 viser et snitt langs linjen IX-IX på fig. 10. Fig. 10 viser et snitt langs linjen X-X på fig. 9. Fig. 11 viser et snitt langs linjen XI-XI på fig. 9. Fig. 9 shows a section along the line IX-IX in fig. 10. Fig. 10 shows a section along the line X-X in fig. 9. Fig. 11 shows a section along the line XI-XI in fig. 9.

På fig. 1 er sveiseapparatet anbragt på en øvre In fig. 1, the welding apparatus is placed on an upper

3 og en nedre 4 kunststoffbane hvis kanter skal sveises til hverandre. Sveiseapparatet 1 har en husramme 6 av hvilken det på fig. 1-3 bare er vist en plate 8. Sveiseapparatet er forsynt med f.eks. en kileformet oppvarmingsdel 10 for oppvarming av kunststoffbanene 3 og 4. For å oppnå god kontakt mellom oppvarmingsdelen 10 og kunststoffbanene 3 og 4 og sikre jevn oppvarming, er det over og under oppvarmingsdelen anordnet fjærende armer 12$ bladfjærer 13 og trykkruller 14. Under oppvarmingsdelen 10 befinner det seg .et hus 16 i hvilket oppvarmingsdelen 10 kan beveges ut og inn. 3 and a lower 4 plastic web whose edges are to be welded to each other. The welding apparatus 1 has a housing frame 6 of which in fig. 1-3 only a plate 8 is shown. The welding apparatus is equipped with e.g. a wedge-shaped heating part 10 for heating the plastic webs 3 and 4. In order to achieve good contact between the heating part 10 and the plastic webs 3 and 4 and to ensure even heating, springing arms 12, leaf springs 13 and pressure rollers 14 are arranged above and below the heating part. Below the heating part 10 there is a housing 16 in which the heating part 10 can be moved out and in.

En øvre sveisesko 18 er forsynt med en forreste sveiserulle 20 og en bakre sveiserulle 21. Disse er festet på hver sin vinkelarm 23 og 24. Vinkelarmene er .ved hjelp av aksler 29 resp. 30 svingbart lagret i ører 26 resp. 27 på husrammen 6. Mellom vinkelarmene 23 og 24 er anordnet en innstill-bar trykkfjær 32 som trykker de to sveiseruller 20 og-21 jevnt mot oversiden av den øvre kunststoffbane 3. Por å fjerne - sveiseapparatet fra kunststoffbanen 3 og 4 er det på vinkelarmene anordnet håndtak 33 resp. 34 som mot trykket av fjæren 32 kan løfte sveiserullene 20 og 21;"fra banene 3 og 4. An upper welding shoe 18 is provided with a front welding roller 20 and a rear welding roller 21. These are each attached to angle arms 23 and 24. The angle arms are .by means of shafts 29 resp. 30 rotatably stored in ears 26 resp. 27 on the housing frame 6. Between the angle arms 23 and 24 is arranged an adjustable pressure spring 32 which presses the two welding rollers 20 and 21 evenly against the upper side of the upper plastic web 3. Por to remove - the welding apparatus from the plastic web 3 and 4 is on the angle arms arranged handle 33 resp. 34 which, against the pressure of the spring 32, can lift the welding rollers 20 and 21 from the tracks 3 and 4.

Umiddelbart under den øvre sveisesko 18 befinner Immediately below the upper welding shoe 18 is located

det seg en nedre sveisesko 36. Denne har to parallelle stenger 38 av hvilke bare den ene er vist på tegningen. Stengene er på midten svingbart lagret i ører 40 på husrammen og i begge ender av stengene er det dreibart lagret en forreste og en bakre sveiserulle 44 resp. 45 hvis aksler er forsynt med drivskiver 4l. Den nedre sveisesko 36 er festet på' den nedre.husramme 6. Dette skjer ved hjelp av en skjematisk vist forbindelsesdel 47 i form av en såkalt svanehals slik det fremgår av fig. 2. Fig. 3 viser at det på sveiserullene 20 og "-44 er en drivskive 49 resp. 76. Videre viser denne figur at sveiserullene ved overlappingsveis av de to kunststoffbaner 3 og 4 er gitt en slik form at det dannes dobbelt sveisesøm 52 med en mellomliggende kontrollkanal 54 som ikke er sveiset. there is a lower welding shoe 36. This has two parallel rods 38 of which only one is shown in the drawing. The rods are rotatably mounted in the middle in lugs 40 on the housing frame and at both ends of the rods a front and a rear welding roller 44 are rotatably mounted, respectively. 45 whose axles are fitted with drive discs 4l. The lower welding shoe 36 is attached to the lower housing frame 6. This is done by means of a schematically shown connection part 47 in the form of a so-called swan neck, as can be seen from fig. 2. Fig. 3 shows that there is a drive disc 49 and 76 on the welding rollers 20 and "-44. Furthermore, this figure shows that the welding rollers by overlapping welding of the two synthetic webs 3 and 4 are given such a shape that a double welding seam 52 is formed with an intermediate control channel 54 which is not welded.

For å oppnå godt grep av sveiserullene på det materialet som skal sveises er deres overflate riflet. In order to obtain a good grip of the welding rollers on the material to be welded, their surface is grooved.

Av fig. 4'fremgår at det på husrammen 6 foruten platen 8 også er festet en bøyle 56 og foran og bak på platen 8 anbragt løpehjul 58. En drivmotor 60 tjener til driften dvs. bevegelsen av :. sveiseapparatet. På drivmotorens akse sitter som vist på fig..5 et kjedehjul 61 for en første kjede 62 og et andre kjedehjul 63 for en andre kjede 64. Den første kjede 62 løper over trinser og driver den nedre sveisesko 36 slik det skal forklares nærmere under henvisning til fig. 6. From fig. 4' it can be seen that, in addition to the plate 8, a bracket 56 is also attached to the housing frame 6 and an impeller 58 placed in front and behind the plate 8. A drive motor 60 serves for the operation, i.e. the movement of :. the welding apparatus. On the axis of the drive motor, as shown in fig. 5, there is a sprocket 61 for a first chain 62 and a second sprocket 63 for a second chain 64. The first chain 62 runs over pulleys and drives the lower welding shoe 36 as will be explained in more detail under reference to fig. 6.

Kjeden 68 tjener til drift av den forreste sveiserulle. 44 i den nedre sveisesko 36 og til.drift av kjeden 69 The chain 68 serves to operate the front welding roller. 44 in the lower welding shoe 36 and further operation of the chain 69

for drift av den bakre sveiserulle 45. En arm 71 tjener til å trekke oppvarmingsdelen 10 tilbake li.huset 16 for innføring av kunststoffbanene 3 og 4 uten berøring med den varme oppvarmingsdel 10. For drift av-sveiserullene 20 og 21. i den øvre sveisesko er det videre anordnet to kjeder 73 og 74.som drives av for operation of the rear welding roller 45. An arm 71 serves to pull the heating part 10 back into the housing 16 for introducing the plastic webs 3 and 4 without contact with the hot heating part 10. For operation of the welding rollers 20 and 21. in the upper welding shoe two chains 73 and 74 are also arranged, which are operated by

kjedehjulet 63 og kjeden 74 slik det fremgår av fig. 5. the sprocket 63 and the chain 74 as shown in fig. 5.

Fig. 6 viser den nedre sveisesko 36 med de til-hørende drivdeler og forbindelseselementet mellom den nedre sveisesko 36 og husrammen 6. Det av drivkjeden 62 drevne kjedehjul 66 (fig. 5) som er festet på den ene enden av-.--akselen 79 som i den andre ende er forsynt med et kjegletann-./ hjul 80 som står i inngrep med et kjegletannhjul 81 på den Fig. 6 shows the lower welding shoe 36 with the associated drive parts and the connecting element between the lower welding shoe 36 and the housing frame 6. The sprocket 66 driven by the drive chain 62 (Fig. 5) which is attached to one end of the shaft 79 which at the other end is provided with a bevel gear/ wheel 80 which engages with a bevel gear 81 on the

ene ende av en aksel 82 hvis andre ende er forsynt med et kjegletannhjul 83 :.. Kjegletannhjulet 83 står i inngrep med kjegletannhjulet 84 i den ene ende av en aksel 85 hvis andre one end of a shaft 82, the other end of which is provided with a bevel gear 83 :.. The bevel gear 83 meshes with the bevel gear 84 at one end of a shaft 85, the other

ende er forsynt med et dobbelt kjedehjul 41 som vist på end is provided with a double sprocket 41 as shown in

fig'. 4. Dobbeltkjedehjulet 41 driver de to kjeder 68 og 69 -for drift av kjedehjulene 67 og 77 på akselen for de to sveiseruller 44 og 45. fig'. 4. The double sprocket 41 drives the two chains 68 and 69 - for driving the sprockets 67 and 77 on the shaft for the two welding rollers 44 and 45.

Fig. 6 viser også en del av husrammen 6 og hårnål-fjærene 13 som samtidig danner armene 12 og trykkrullene 14 som står under trykk av disse fjærer. Fig. 6 also shows part of the housing frame 6 and the hairpin springs 13 which at the same time form the arms 12 and the pressure rollers 14 which are under pressure from these springs.

Forbindelsesdelen 47 som her er utformet som svane-.hals danner en stiv forbindelse mellom den nedre sveisesko 36 og husrammen 6, og denne konstruksjon muliggjør at de to kunststoffbaner 3 og 4 angripes fra undersiden av den nedre sveisesko 36 og trykkes opp mot den øvre sveisesko 18 uavhengig av noe motlager. The connection part 47, which here is designed as a gooseneck, forms a rigid connection between the lower welding shoe 36 and the housing frame 6, and this construction enables the two plastic webs 3 and 4 to be attacked from the underside of the lower welding shoe 36 and pressed up against the upper welding shoe 18 independent of any counter bearing.

Et slikt sveiseapparat behøver således ingen av-støtning på et underlag, men er ene og alene avstøttet på de Such a welding apparatus thus needs no support on a surface, but is solely supported on them

.to kunststoffbaner 3 og 4 som skal forbindes med hverandre idet de to løpehjul 58 ruller på den nedre kunststoffbane 4 mens svanehalsen 47 forbinder den nedre sveisesko 36 med driv- og festedelene på rammen 6. Mens fig. 4 viser armen 71 i en stilling i hvilken oppvarmingsdelen 10 befinner seg inne i huset 16 slik at inn-føring av kunststoffbanene 3 og 4 i apparatet er mulig, viser .two plastic tracks 3 and 4 which are to be connected to each other as the two impellers 58 roll on the lower plastic track 4 while the gooseneck 47 connects the lower welding shoe 36 with the drive and attachment parts on the frame 6. While fig. 4 shows the arm 71 in a position in which the heating part 10 is located inside the housing 16 so that introduction of the plastic webs 3 and 4 into the device is possible, shows

, fig.- 5 armen 71 i en stilling i hvilken oppvarmingsdelen 10 befinner seg i arbeidsstilling. Håndtakene 33 og 34 er også frie slik at trykkfjæren 32 slik det fremgår av fig. 5 kan presse de to vinkelarmer 23 og 24 og dermed sveiserullene 20 og 21 mot den øvre kunststoffbane 3 idet svéiserullene 44 , fig.-5 the arm 71 in a position in which the heating part 10 is in the working position. The handles 33 and 34 are also free so that the compression spring 32, as shown in fig. 5 can press the two angle arms 23 and 24 and thus the welding rollers 20 and 21 against the upper plastic web 3, as the welding rollers 44

og 45 i den nedre sveisesko 36 danner motlager. and 45 in the lower welding shoe 36 form a counter bearing.

For anbringelse resp. fjerning av sveiseapparatet fra kunststoffbanene 3 og 4 blir oppvarmingsdelen 10 trukket inn i huset 16. Dette muliggjør en forstyrrelsesfri inn-føring av det materiale som skal sveises. For placement or removal of the welding apparatus from the plastic webs 3 and 4, the heating part 10 is drawn into the housing 16. This enables a disturbance-free introduction of the material to be welded.

Oppvarmingsdelen 10 kan for rengjøring lett. tas ut av apparatet idet føringen av oppvarmingsdelen ér sikret riktig gjenanbringelse. i forhold til sveiseskoen. The heating part 10 can be cleaned easily. is taken out of the device while the guidance of the heating part is ensured to be correctly repositioned. in relation to the welding shoe.

Under sveising driver motoren 60 via sveiserullene 20, 21, 44,. 45 sveiseapparatet 1 idet oppvarmingsdelen 10 varmer opp de. foran sveiserullene liggende deler, av kunststoffbanene 3 og 4 og deretter blir sveiseforbundet '^i en dobbelt sveisesøm 52 ved de etterfølgende sveiseruller 20,og 44. Mellom dobbeltsveisesømmen 52 ligger det en kontrollkanal 54 som kan settes under lufttrykk for å kontrollere at sveisesømmen er tett. During welding, the motor 60 drives via the welding rollers 20, 21, 44,. 45 the welding apparatus 1 as the heating part 10 heats them up. parts lying in front of the welding rollers, of the plastic webs 3 and 4 and are then welded together in a double welding seam 52 at the subsequent welding rollers 20 and 44. Between the double welding seam 52 there is a control channel 54 which can be placed under air pressure to check that the welding seam is tight .

Utførelseseksemplet på. fig. 7 og 8 har en nedre sveisesko som består av et lager 86 og en sveiserulle 88 som er forbundet med husrammen 8 ved hjelp av en arm 87. Driften av sveiserullen 88 skjer ved hjelp av et kjedehjul 92 som er festet på sveiserulleakselen og som drives av en kjede 91 fra et kjedehjul 92 som sitter i den ene ende av en aksel 9Q hvis andre ende også er forsynt med et kjedehjul 92. Den øvre sveisesko omfatter en sveiserulle 93 som er svingbart lagret på en arm 94 om en øvre drivakse 95 som ved hjelp av en blad-fjær 96 trykker sveisegodset 3,4 ned mot den nedre sveiserullen 88. Driften av den øvre sveiserulle 93 skjer ved hjelp av en kjede 97 på drivakselen 95 og et kjedehjul 98. The execution example of. fig. 7 and 8 have a lower welding shoe consisting of a bearing 86 and a welding roller 88 which is connected to the housing frame 8 by means of an arm 87. The operation of the welding roller 88 takes place by means of a sprocket 92 which is fixed on the welding roller shaft and which is driven by a chain 91 from a sprocket 92 which sits at one end of a shaft 9Q whose other end is also provided with a sprocket 92. The upper welding shoe comprises a welding roller 93 which is pivotally mounted on an arm 94 about an upper drive shaft 95 as in with the help of a leaf spring 96, the welding material 3,4 is pressed down against the lower welding roller 88. The operation of the upper welding roller 93 takes place with the help of a chain 97 on the drive shaft 95 and a sprocket 98.

Den nedre sveisesko er videre forsynt med en trykkrulle. 99, og den øvre sveisesko er forsynt med en trykkrulleelOO som. står under virkning av en fjær 101. For å lette innføringen av kunststoffbanene 3 og 4 kan oppvarmingsdelen 102 trekkes inn i et hus 16 likesom ved det første utførelseseksempel og den øvre sveiserulle 93 og trykkrullen 100 kan ved hjelp av en arm 103 og'en stang 104 løftes. Hvis oppvarmingsdelen 102 ble holdt fast i et lager kunne det ikke noen tilpasning av forskjellig materialtykkeIse av kunststoffbanen 4. For å unngå denne ulempe er oppvarmingsdelene 102 svingbart opphengt. The lower welding shoe is also equipped with a pressure roller. 99, and the upper welding shoe is provided with a pressure roller eELOO which. is under the action of a spring 101. In order to facilitate the introduction of the plastic webs 3 and 4, the heating part 102 can be pulled into a housing 16, as in the first embodiment, and the upper welding roller 93 and the pressure roller 100 can by means of an arm 103 and a rod 104 is lifted. If the heating part 102 was held firmly in a bearing, there could be no adaptation of different material thicknesses of the synthetic web 4. To avoid this disadvantage, the heating parts 102 are pivotably suspended.

Den tilpasser seg og understøttes av kraften fra.fjærene 96 It adapts and is supported by the power of the springs 96

og 101 til forskjellig materialtykkelse. Som,det fremgår av fig. 9 er oppvarmingsdelen 102 som følge av varmeutvidelse and 101 for different material thickness. As can be seen from fig. 9 is the heating part 102 due to thermal expansion

fjærende opphengt ved hjelp av fjærer 105 i en holder 106. resiliently suspended by means of springs 105 in a holder 106.

Selve holderen 106 er ved hjelp av tapper 107 svingbart The holder 106 itself is pivotable by means of pins 107

lagret på et mellomstykke 108 som på sin side ved hjelp av tapper 109 er lagret på en forskyvningsinnretning 110 for oppvarmingsdelen. Innretningen 110 muliggjør tilbaketrekning av oppvarmingsdelen 102 i huset 16 og letter derved innføring av kunststoffbanene uten å berøre oppvarmingsdelen. Ved stored on an intermediate piece 108 which, in turn, by means of pins 109 is stored on a displacement device 110 for the heating part. The device 110 makes it possible to withdraw the heating part 102 in the housing 16 and thereby facilitates the introduction of the plastic webs without touching the heating part. By

hjelp av tappene 107 og 109 forblir oppvarmingsdelen parallell med akslene for sveiserullene 88 og 93. Den er imidlertid i stand til å følge enhver bevegelse i høyden og svingebevegelser såvel :om aksen for tappene 107 eller 109, som begge svinge-bevegelsene samtidig. I hvilestilling, dvs. særlig ved inn-føring av kunststoffbanene 3 og 4 er oppvarmingsdelen ved with the help of pins 107 and 109, the heating part remains parallel to the axes of the welding rollers 88 and 93. However, it is able to follow any movement in height and swing movements both about the axis of the pins 107 or 109, and both swing movements simultaneously. In the rest position, i.e. particularly when introducing the plastic webs 3 and 4, the heating part is on

hjelp av et anslag 111 og en fjær 112 holdt i en bestemt stilling. For å sikre at prøvekanalen 54 holdes åpen, er det mellom sveisesømmene 52 anordnet en sleper som følger sveisingen. by means of a stop 111 and a spring 112 held in a certain position. To ensure that the test channel 54 is kept open, a tow is arranged between the welding seams 52 which follows the welding.

Da oppvarmingsdelen ved hjelp av en temperatur-regulator alltid holdes driftsklar begynner oppvarmingen av kunststoffbanene straks apparatet er anbragt. Ved betjening av en bryter på apparatet startes motoren. Dermed begynner apparatet å forskyve seg og mykner kunststoffbanene kontinu-erlig før sammenpressingen ved hjelp av sveiserullene og dermed skjer det ingen lufttilførsel som muliggjør en oksydering. As the heating part is always kept ready for operation by means of a temperature regulator, the heating of the plastic tracks begins as soon as the device is placed. By operating a switch on the device, the motor is started. Thus, the apparatus begins to shift and continuously softens the plastic webs before the compression with the help of the welding rollers and thus there is no air supply which enables oxidation.

Det er også mulig på enkel måte å bytte ut sveiserullene for eventuelt å tilveiebringe bredere sveisesømmer eller flere sømmer. På samme måte er også oppvarmingsdelen utskiftbar. It is also possible to replace the welding rollers in a simple way to possibly provide wider welding seams or more seams. In the same way, the heating part is also replaceable.

Kravene til et slikt sveiseapparat er å muliggjøre The requirements for such a welding device are to enable

en varig, tett sammenføyning av to materialbaner som overlapper hverandre særlig av termoplast. Videre kan sveisesømmen lett kontrolleres på tetthet ved trykkluft. Apparatet er egnet for sveising av stillestående materialbaner og apparatet beveger seg med sveisehastighet, eller kan være stillestående med til-svarende bevegelse av materialbanene. Apparatet er egnet for bevegelse■* såvel til høyre som til venstre. Apparatet mulig-gjør videre seks ganger økning av materialtykkelsen i samme arbeidsoperasjon. a permanent, tight joining of two material webs that overlap each other, particularly made of thermoplastic. Furthermore, the weld seam can be easily checked for tightness with compressed air. The apparatus is suitable for welding stationary material paths and the apparatus moves at welding speed, or can be stationary with corresponding movement of the material paths. The device is suitable for movement■* both to the right and to the left. The device also enables a six-fold increase in material thickness in the same work operation.

Et apparat ifølge oppfinnelsen kan anvendes på et-hvert underlag godt eller dårlig, dvs. på sten, sand, fjell, grov betong osv. fordi underlaget ikke er utslagsgivende for kvaliteten av sveisen. An apparatus according to the invention can be used on any substrate, good or bad, i.e. on stone, sand, rock, rough concrete, etc., because the substrate is not decisive for the quality of the weld.

Claims (4)

1. Sveiseapparat for kunststoffbaner, omfattende en1. Welding apparatus for synthetic webs, comprising a husramme, en foran sammenføyningsste.det for banene anordnet oppvarmingsinnretning for oppvarming av banene, og en øvre og nedre sveiseføring som er anordnet direkte over" hverandre og holder sammen det oppvarmede Sveisegods, og av hvilke den nedre danner en del av sveiseapparatet og er mekanisk fast forbundet med husrammen eller den øvre sveiseføring for ved sveising å danne en utelukkende på sveisegodset avstøttet enhet for å tilveiebringe en sikker og god sveis også ved dårlig underlag,karakterisert ved at oppvarmingsinnretningen.er utformet som kontaktoppvarmingslegeme (10) med fortrinnsvis kileform, og at sveiseføringene er utformet som rullel-sveisesko (18,36) som er forbundet med hverandre ved en bøyet arm, en svanehals eller lignende. housing frame, a heating device arranged in front of the joining station for heating the paths, and an upper and lower welding guide which are arranged directly above each other and hold together the heated welding material, and of which the lower one forms part of the welding apparatus and is mechanically fixed connected to the housing frame or the upper welding guide in order to form, when welding, a unit supported exclusively on the welding material to provide a safe and good weld even on poor ground, characterized in that the heating device is designed as a contact heating body (10) with preferably a wedge shape, and that the welding guides are designed as roller welding shoes (18,36) which are connected to each other by a bent arm, a gooseneck or the like. 2. Sveiseapparat ifølge krav 1, karakterisert ved at i det minste noen ruller (20,21; 44 ,45 )• i rullesveiseskoen (18,36) drives av en sentral drivmotor (60) fortrinnsvis ved hjelp av kjeder (61,62,63,64) eller tannhjul (80,81,82,83,84). 2. Welding apparatus according to claim 1, characterized in that at least some rollers (20,21; 44,45)• in the roller welding shoe (18,36) are driven by a central drive motor (60), preferably by means of chains (61,62, 63,64) or gears (80,81,82,83,84). 3. Sveiseapparat ifølge krav 1 eller 2, karakterisert ved at kontaktoppvarmingslegemet og sveise-rullene (20,21;44,45) i den midtre del har utsparing slik at det dannes dobbelt sveisesøm (52) med mellomliggende kontrollkanal (54). 3. Welding apparatus according to claim 1 or 2, characterized in that the contact heating body and the welding rollers (20,21;44,45) in the middle part have recesses so that a double welding seam (52) is formed with an intermediate control channel (54). 4. Sveiseapparat ifølge et av kravene 1-3, karakterisert ved at kontaktoppvarmingsinnretningen (10) er anordnet tilbaketrekkbar i et hus (16) for å dekkes ved tilbaketrekningen. 5- Sveiseapparat ifølge et av kravene 1-4, karakterisert ved at sveiserullene i den øvre sveisesko (1) som er festet svingbare uavhengig av hverandre i den øvre sveiseskoramme og presses ved kraften av like fjærer (32) mot sveisegodset, idet sveiserullene (44,45) i den"nedre sveiseskoramme (36) tjener som motlager. 6- Sveiseapparat ifølge et av kravene 1-5, karakterisert ved at det foran sveiserullene (20,44) på begge sider av kontaktoppvarmingsinnretningen (10) er anordnet trykkruller (14) for å presse banene (3,4) som skal sveises mot det kileformede oppvarmingslegeme .fortrinnsvis ved hjelp av bladfjærer (13).4. Welding apparatus according to one of claims 1-3, characterized in that the contact heating device (10) is arranged retractable in a housing (16) in order to be covered when retracted. 5- Welding apparatus according to one of the claims 1-4, characterized in that the welding rollers in the upper welding shoe (1) which are fixed pivotable independently of each other in the upper welding shoe frame and are pressed by the force of equal springs (32) against the welding material, the welding rollers (44 ,45) in the "lower welding shoe frame (36) serves as a counter bearing. 6- Welding apparatus according to one of claims 1-5, characterized in that pressure rollers (14) are arranged in front of the welding rollers (20,44) on both sides of the contact heating device (10) ) to press the webs (3,4) to be welded against the wedge-shaped heating body, preferably by means of leaf springs (13).
NO764389A 1976-01-30 1976-12-29 WELDING APPLIANCES FOR ARTICLES. NO144732C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH118176A CH608417A5 (en) 1976-01-30 1976-01-30 Welding device for welding plastic webs
CH1616176A CH618627A5 (en) 1976-12-22 1976-12-22 Welding device for welding plastic webs

Publications (3)

Publication Number Publication Date
NO764389L NO764389L (en) 1977-08-02
NO144732B true NO144732B (en) 1981-07-20
NO144732C NO144732C (en) 1981-10-28

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NO764389A NO144732C (en) 1976-01-30 1976-12-29 WELDING APPLIANCES FOR ARTICLES.

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CA (1) CA1096286A (en)
DE (2) DE7700687U1 (en)
FI (1) FI62483C (en)
FR (1) FR2339476A1 (en)
IT (1) IT1076008B (en)
NO (1) NO144732C (en)
SE (1) SE415463B (en)

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DE2700971A1 (en) 1977-08-04
FI62483C (en) 1983-01-10
NO764389L (en) 1977-08-02
DE2700971C2 (en) 1987-07-09
CA1096286A (en) 1981-02-24
SE7700638L (en) 1977-07-31
FI770084A (en) 1977-07-31
FR2339476B1 (en) 1982-01-15
DE7700687U1 (en) 1981-03-12
NO144732C (en) 1981-10-28
FR2339476A1 (en) 1977-08-26
IT1076008B (en) 1985-04-22
SE415463B (en) 1980-10-06
FI62483B (en) 1982-09-30

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