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SE431434B - DEVICE FOR CONTINUOUS PREPARATION OF A PACKAGING HOSE OF A WELDABLE PACKAGING MATERIAL COVER - Google Patents

DEVICE FOR CONTINUOUS PREPARATION OF A PACKAGING HOSE OF A WELDABLE PACKAGING MATERIAL COVER

Info

Publication number
SE431434B
SE431434B SE7712890A SE7712890A SE431434B SE 431434 B SE431434 B SE 431434B SE 7712890 A SE7712890 A SE 7712890A SE 7712890 A SE7712890 A SE 7712890A SE 431434 B SE431434 B SE 431434B
Authority
SE
Sweden
Prior art keywords
edge areas
web
leg
legs
induction coil
Prior art date
Application number
SE7712890A
Other languages
Swedish (sv)
Other versions
SE7712890L (en
Inventor
H Auterieth
W Diener
G Vogele
Original Assignee
Bosch Gmbh Robert
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bosch Gmbh Robert filed Critical Bosch Gmbh Robert
Publication of SE7712890L publication Critical patent/SE7712890L/en
Publication of SE431434B publication Critical patent/SE431434B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5092—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the tape handling mechanisms, e.g. using vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36—Bending and joining, e.g. for making hollow articles
    • B29C53/38—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
    • B29C53/48—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively
    • B29C53/50—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively using internal forming surfaces, e.g. mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3604—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/3656—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint being a layer of a multilayer part to be joined, e.g. for joining plastic-metal laminates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3672—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint
    • B29C65/3676—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic
    • B29C65/368—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic with a polymer coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5042—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like covering both elements to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
    • B29C65/7888—Means for handling of moving sheets or webs
    • B29C65/7894—Means for handling of moving sheets or webs of continuously moving sheets or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/49—Internally supporting the, e.g. tubular, article during joining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General 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
    • B29C66/72—General 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 structure of the material of the parts to be joined
    • B29C66/723—General 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 structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General 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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321—General 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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General 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
    • B29C66/73—General 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
    • B29C66/739—General 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
    • B29C66/7392—General 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
    • B29C66/73921—General 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8161—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/22—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding
    • B65B51/227—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding by induction welding

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Package Closures (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Description

Uppfinningens ändamål Till grund för uppfinningen ligger uppgiften att utveckla en längd- sömsvetsanordning för framställning av en förpackningsslang, vilken svetsanordning är lätt âtkomlig och medför noggrann styrning av för- bindelseremsan. Object of the invention The invention is based on the task of developing a longitudinal seam welding device for the production of a packaging hose, which welding device is easily accessible and involves accurate control of the binding strip.

Fördelar med uppfinningen En anordning enligt uppfinningen med de i patentkravet 1 angivna kän- netecknen har den fördelen, att förbindelseremsan, som täcker förpack- ningsmaterialbanans båda kantomrâden, likformigt och tätt hopsvetsas med de båda kantomrâdena utan stor energiâtgång. Särskilt likformig och till de av förbindelseremsan täckta kantomrâdena av förpacknings- materialbanan koncentrerad uppvärmning kan enligt en vidareutveckling av uppfinningen uppnås, om induktionsspolen har en de båda kantområ- dena täckande första skänkel och tvâ sig till denna via en förgrening anslutande andra skänklar, vilka löper bredvid den första skänkeln på avstånd från denna och från förpackningsmaterialbanan. Medelst de bå- da återföringsskänklarna koncentreras magnetfältet kring den första skänkeln så att god induktiv koppling med hög strömtäthet erhålles till metallinläggningen i de bredvid varandra liggande kantområdena hos materialbanan under det att endast svag koppling uppstår inom området för de från förpackningsmaterialbanan avlägsna skänklarna.Advantages of the invention A device according to the invention with the features stated in claim 1 The network characters have the advantage that the connecting strip covering the packaging both edge areas of the material web, uniformly and tightly welded together with the two edge areas without large energy consumption. Particularly uniform and to the edge areas of the packaging strip covered by the connecting strip material web concentrated heating can according to a further development of the invention is achieved if the induction coil has one of the two edge areas. the covering first leg and bend to it via a branch connecting second legs, which run next to the first leg on distance from it and from the web of packaging material. By means of the since the return legs, the magnetic field is concentrated around the first the leg so that good inductive coupling with high current density is obtained to the metal inlay in the adjacent edge areas of the material web while only weak coupling occurs within the area of the legs remote from the packaging material web.

Ritning Ett utföringsexempel av uppfinningen beskrivs nedan närmare under hänvisning till åtföljande ritning, där fig. 1 förenklat och i per- spektiv visar en anordning för framställning av en förpackningsslang, fig. 2 från sidan och i större skala visar en del av anordningen en- ligt fig. 1 och fig. 3 i perspektiv visar en induktor hos anordning- en enligt fig. 1 och 2., Beskrivning av uppfinningen En från en förrâdsrulle 2 kommande förpackningsmaterialbana 1 ledes över en brytvals och formas därefter till en slang 3 med rektangu- lärt tvärsnitt så att materialbanans längsgående kanter 4, 5 stöter mot varandra i ett gemensamt plan. Omràdena närmast de längsgående 'kanterna 4, 5 täckes på slangens insida medelst en från en förrâds- rulle 6 utlöpande förbindelse- eller täckremsa 7 med en bredd av ca 10 mm. Förpackningsämnesbanan 1 utgöres exempelvis av ett fler- skíktmaterial med ett bärarskikt av kartong, ett tätningsskikt av aluminiumfolie och ett inre skyddsskikt av termoplast, exempelviä 7712890-8 polyeten. Täckremsan 7 är företrädesvis ävenledes utförd som fler- skiktmaterial. Den har ett bärarskikt av polypropen och ett svets- skikt av polyeten. I och för framställning av en tät längsgående söm 8 på slangen 3 hopsvetsas täckremsan 7 med banans 1 inre kantom- råde, varvid täckremsans svetsskikt anligger mot skyddsskiktet på ba- nans 1 kantområde.Drawing An embodiment of the invention is described in more detail below reference to the accompanying drawing, in which Fig. 1 is simplified and in per- binoculars show a device for manufacturing a packaging hose, Fig. 2 from the side and on a larger scale shows a part of the device Fig. 1 and Fig. 3 show in perspective an inductor of the device one according to Figs. 1 and 2., Description of the invention A packaging material web 1 coming from a supply roll 2 is led over a breaking roll and then formed into a hose 3 with rectangular learned cross section so that the longitudinal edges 4, 5 of the material web abut against each other in a common plane. The areas closest to the longitudinal ones the edges 4, 5 are covered on the inside of the hose by means of one from a supply roller 6 extending connecting or cover strip 7 with a width of about 10 mm. The packaging blank web 1 consists, for example, of a multi- layer material with a carrier layer of cardboard, a sealing layer of aluminum foil and an inner protective layer of thermoplastic, for example 7712890-8 polyethylene. The cover strip 7 is preferably also designed as a multi-layer. layer material. It has a carrier layer of polypropylene and a welding layer of polyethylene. In order to produce a dense longitudinal seam 8 on the hose 3, the cover strip 7 is welded together with the inner edge circumference of the web 1. area, the welding layer of the cover strip abutting against the protective layer on the nans 1 edge area.

För alstring av det värme, som erfordras för kontinuerlig hopsvets- ning av banans 1 skyddsskikt vid båda kantomrâdena med täckremsans 7 svetsskikt är vid banans 1 kantomrâden anordnad en svetsback 11 med en induktionsspole 12, som matas med högfrekvent växelström från en generator 13. Induktionsspolen 12 har en rätlinjig första skänkel 14, som motsvarar täckremsans 7 bredd och fjädrande tryckes mot de båda stumt mot varandra anlagda kantområdena 4, 5 hos den kontinuer- ligt framdragna förpackningsämnesbanan 1. Vid sin i banans 1 fram- dragningsriktning främre ände är den första skänkeln 14 förgrenad till två skänklar 15, 16, vilka först löper bort från skänkeln 14 i dennas antryckningsplan och därefter löper tillbaka snett utåt/uppåt.To generate the heat required for continuous welding the protective layer of the web 1 at both edge areas with the cover strip 7 welding layers, a welding jaw 11 is arranged at the edge areas of the web 1 with an induction coil 12, which is supplied with high frequency alternating current from a generator 13. The induction coil 12 has a rectilinear first leg 14, which corresponds to the width of the cover strip 7 and is resiliently pressed against them both mutually abutting edge areas 4, 5 of the continuous packaged blank web 1. At its in the web 1 pulling direction front end, the first leg 14 is branched to two legs 15, 16, which first run away from the leg 14 in its impression plane and then runs back obliquely outwards / upwards.

De båda skänklarna 15, 16 sträcker sig härvid i ett plan, vilket lu- tar i förhållande till antryckningsplanet, dvs det gemensamma planet för den första svetsskänkeln 14 och den plana ytan hos de båda kant- områdena 4, 5, och vilket skär detta plan inom området för förgrenin- gen mellan skänklarna 14, 15 och 16. De båda skänklarna 15, 16 lig- ger dessutom i två parallella plan, vilka är pararallella med det plan, som är vinkelrätt mot den första skänkelns 14 antryckningsplan och löper genom stötfogen mellan banans 1 kantomrâden 4, 5. Företrä- desvis består den första skänkeln 14 av tvâ bredvid varandra liggan- de, varandra berörande ledare 18, 19, vilka vid sin övre ingângsände är förbundna med varandra medelst en anslutningsplåt 20. Vid förgre- ningen 17 är de båda ledarna 18, 19 böjda isär från varandra och över- går i de båda skänklarna 15, 16, vars övre ändar likaledes är för- bundna med varandra medelst en anslutningsplât 21. Ledarna 18, 19 utgöres av rör eller hålprofilmaterial, så att vätskeformigt kylme- dium kan ledas genom ledarna och tillföras genom en ledning 22 och bortledas genom en ledning 23. Ledarna 18, 19 är fästa i spår i svetsbacken 11, vilken är framställd av elektriskt isolerande mate- rial och fjädrande antryckes mot förpackningsmaterialbanans 1 kant- områden 4, 5.The two legs 15, 16 extend in this case in a plane, which takes in relation to the plane of impression, i.e. the common plane for the first welding leg 14 and the flat surface of the two edge areas 4, 5, and which intersects this plan within the area of between the legs 14, 15 and 16. The two legs 15, 16 lie also gives in two parallel planes, which are parallel to it plane, which is perpendicular to the pressure plane of the first leg 14 and runs through the joint between the edge areas 4, 5 of the web 1. therefore, the first leg 14 consists of two adjacent ones. the contacting conductors 18, 19, which at their upper input end are connected to each other by means of a connecting plate 20. In the case of 17, the two conductors 18, 19 are bent apart from each other and goes in the two legs 15, 16, the upper ends of which are likewise bonded to each other by means of a connection plate 21. The conductors 18, 19 consists of tubes or hollow profile material, so that liquid coolant dium can be passed through the conductors and supplied through a conduit 22 and led by a wire 23. The conductors 18, 19 are attached to grooves in welding jaw 11, which is made of electrically insulating material. and resiliently pressed against the edge of the packaging material web 1 areas 4, 5.

För att mata fram och trycka täckremsan 7 mot insidan av banans 1 <1 ~a _.) ro oo v: o | o: kantområden vid induktionsspolen 12 är ett flertal styr- och tryck- rullar 25 av omagnetiserbart, elektriskt oledande material anordna- de roterbara på ett par skenor 27 i form av en rullbana på slangens 3 insida.To feed and push the cover strip 7 against the inside of the web 1 <1 ~ a _.) ro oo v: O | O: edge areas at the induction coil 12 are a plurality of guide and pressure rolls 25 of non-magnetizable, electrically non-conductive material are arranged they are rotatable on a pair of rails 27 in the form of a roller track on the hose 3 inside.

När materialbanans 1 kantomrâden 4,5 drages förbi induktionsspo- lens 12 breda skänkel 14, kommer det koncentrerade, skänkeln 14 om- givande magnetfältet att i materialbanans aluminiumfolieskikt, sär- skilt vid de av skänkeln 14 täckta kantområdena, alstra virvel- strömmar med stor strömtäthet, vilka kraftigt uppvärmer metallfolie- skiktet. Detta värme överföres delvis även till de mot metallfolie- skiktet anliggande skyddskiktsomrâdena och via dessa även till täck- remsan 7, så att skyddsskiktet och svetsskiktet blir degformiga.When the edge areas 4,5 of the material web 1 are pulled past the induction coil wide leg 14 of the lens 12, the concentrated leg 14 will be giving the magnetic field that in the aluminum foil layer of the material web, separately at the edge areas covered by the leg 14, generate vortex streams with high current density, which strongly heat metal foils. the layer. This heat is partly also transferred to those against the metal foil. the layer adjacent to the protective layer areas and via these also to the strip 7, so that the protective layer and the welding layer become dough-shaped.

Till följd av det tryck, som utövas av rullarna 25, särskilt de av materialbanan sist genomlupna rullar 25, som samverkar med en mot dessa antryckt mottryckrulle 26, förbinds materialbanans skyddsskikt och täckremsans svetsskikt med varandra. Efter avkylning är svets- sömmen stabil så att förpackningsslangen 3 kan fyllas och formas till förpackningar 9.Due to the pressure exerted by the rollers 25, especially those of the material web last passed through rollers 25, which cooperate with a mot these pressed back pressure roller 26, the protective layer of the material web is connected and the welding layer of the cover strip with each other. After cooling, the welding the seam is stable so that the packaging hose 3 can be filled and shaped for packaging 9.

Alternativt med den ovan beskrivna och på ritningen visade utförings- formen kan det för hopsvetsning av täckremsan 7 med materialbanans 1 kantområden 4, 5 användas induktionsspolar med annan geometrisk utformning. Exempelvis är det tänkbart att de återgående skänklarna ligger i plan parallella med planet för materialbanans kantområden på avstånd från detta eller att induktionsspolen har två parallella lindningar, vilka har var sin likartad ledardel anordnad parallellt med den andra ledardelen i beröring med var sin kantremsa hos för- packningsmaterialbanan under det att återstående ledardelar sträcker sig på större avstånd från dessa kantområden.Alternatively with the embodiment described above and shown in the drawing the mold can be used for welding the cover strip 7 together with the web of material In edge areas 4, 5, induction coils with a different geometric are used design. For example, it is conceivable that the return legs lies in planes parallel to the plane of the edge areas of the material web at a distance from this or that the induction coil has two parallel ones windings, each of which has a similar conductor part arranged in parallel with the other conductor part in contact with each edge strip of the the packing material web while the remaining conductor parts stretch at greater distances from these edge areas.

Claims (7)

77':'2890-8 Patentkrav77 ':' 2890-8 Patent claims 1. Anordning för kontinuerlig framställning av en förpacknings- slang (3) av en svetsbar förpackningsmaterialbana (1) genom hopsvetsning av dennas kantomràden (4,5) med en svetsbar remsa (7), med dels en med högfrekvent växelström matad, långsträckt induktionsspole (12), genom vars arbetsområde de båda kantområ- dena (4,5) slangen (3), bringas röra sig; dels en mittemot induktionsspolen (12) anordning (26) för remsan, k ä n n e t e c k n a d av att vid av materialbanan (1), som bildar en längsfog (8) hos liggande styrningsanordning (25); samt dels en antrycknings- användning av en materialbana (1), som uppvisar ett skikt av metall och åtminstone ett innerskikt av termoplast, och vid form- slang (3) med en längsfog (8), vid vilken material- kantområden (4,5) stöter stumt mot varandra och på insidan täcks av remsan (7), är induktionsspolen (12) anordnad ning av en banans (1) i beröring med materialbanans (1) båda kantområden (4,5); och att styrningsanordningen (25) berör remsan (7), som täcker de båda hopstötande kantområdena (4,5) av materialbanan (1).Device for continuous production of a packaging hose (3) of a weldable packaging material web (1) by welding together its edge areas (4,5) with a weldable strip (7), with on the one hand an elongate induction coil fed with high-frequency alternating current ( 12), through whose working area the two edge areas (4,5) the hose (3) are caused to move; on the other hand, a device (26) opposite the induction coil (12) for the strip, characterized in that at the material web (1), which forms a longitudinal joint (8) of the horizontal guide device (25); and on the one hand an impression use of a material web (1), which has a layer of metal and at least one inner layer of thermoplastic, and in the case of a mold hose (3) with a longitudinal joint (8), in which material edge areas (4,5 ) abuts abruptly and is covered on the inside by the strip (7), the induction coil (12) is arranged by a web (1) in contact with both edge areas (4,5) of the material web (1); and that the guide device (25) touches the strip (7), which covers the two abutting edge areas (4,5) of the web of material (1). 2. Anordning enligt krav 1, k ä n n e t e c k n a d av att in- duktionsspolen (12) har en materialbanans (1) båda kantområden (4,5) täckande första skänkel (14) och tvâ sig till denna via en förgrening (17) anslutande andra skänklar (15,16), vilka löper bredvid den första skänkeln (14) på avstånd från denna och från materialbanan (1).Device according to Claim 1, characterized in that the induction coil (12) has a first leg (14) covering both edge areas (4,5) of a web of material (1) and bends to it via a second (17) connecting second branch. legs (15, 16), which run next to the first leg (14) at a distance therefrom and from the web of material (1). 3. Anordning enligt krav 2, k ä n n e t e c k n a d av att de andra skänklarna (15,16) sträcker sig i ett gemensamt plan, vilket bildar vinkel med ett plan, som är gemensamt för den första skänkeln (14) och materialbanans (1) kantområden (4,5).Device according to claim 2, characterized in that the second legs (15, 16) extend in a common plane, which forms an angle with a plane common to the first leg (14) and the edge areas of the material web (1). (4.5). 4. Anordning enligt krav 3, k ä n n e t e c k n a d av att planet genom de båda andra skänklarna (15,16) skär sagda plan hos den första skänkeln (14) i förgreningen (17) mellan skänk- larna.Device according to claim 3, characterized in that the plane through said two second legs (15, 16) intersects said plane of the first leg (14) in the branch (17) between the legs. 5. Anordning enligt krav 4, k ä n n e t e c k n a d av att de båda andra skänklarna (15,16) löper parallellt med varandra. w.. ~___»i N I lä CO MQ CD I OO 6'Device according to claim 4, characterized in that the two other legs (15, 16) run parallel to each other. w .. ~ ___ »i N I lä CO MQ CD I OO 6 ' '6. Anordning enligt något av kraven 1-É, k ä n n e t e c k n a 6 av att induktionsspolen (12) är sammansatt av två ledare (18,19), vars första hälfter löper bredvid varandra under beröring i form av sagda första skänkel (14) och vars andra hälfter löper på av- stånd från varandra i form av sagda andra skänklar (15,16).'6. Device according to any one of claims 1-É, characterized in that the induction coil (12) is composed of two conductors (18, 19), the first halves of which run next to each other in contact in the form of said first leg (14) and whose second halves run at a distance from each other in the form of said other legs (15,16). 7. Anordning enligt något av kraven 1-6, k ä n n e t e c k n a d av att styrningsanordningen omfattar en rullbana (15), vilken stöder induktionsspolens första skänkel (14) samt materialbanans (1) båda kantområden (4,5) och täckremsan (7).Device according to one of Claims 1 to 6, characterized in that the control device comprises a roller conveyor (15), which supports the first leg (14) of the induction coil and the two edge areas (4,5) of the material web (1) and the cover strip (7).
SE7712890A 1976-11-26 1977-11-15 DEVICE FOR CONTINUOUS PREPARATION OF A PACKAGING HOSE OF A WELDABLE PACKAGING MATERIAL COVER SE431434B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2653753A DE2653753C2 (en) 1976-11-26 1976-11-26 Device for producing a packaging tube from a packaging material web by welding the edge areas

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SE7712890L SE7712890L (en) 1978-05-27
SE431434B true SE431434B (en) 1984-02-06

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AT (1) AT366976B (en)
DE (1) DE2653753C2 (en)
FR (1) FR2372026A1 (en)
NL (1) NL7712787A (en)
SE (1) SE431434B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4210477A (en) * 1978-06-30 1980-07-01 American Can Company Tube forming method
DE3536172A1 (en) * 1985-10-10 1987-04-16 Bosch Gmbh Robert METHOD AND DEVICE FOR PRODUCING A JOINT SEAL WITH COVER TAPE ON A TUBE FROM A MULTI-LAYER PACKAGING MATERIAL
US4677012A (en) * 1985-11-07 1987-06-30 Hunter Douglas Inc. Honeycomb structure with band joined folded material and method of making same
US4709533A (en) * 1986-12-22 1987-12-01 Minigrip, Inc. Method and apparatus for making reclosable bags in a form, fill and seal machine
SE505571C2 (en) * 1995-12-20 1997-09-15 Tetra Laval Holdings & Finance Methods and apparatus for longitudinal joint sealing with induction heat of a packaging material of polymer coated metal sheet
SE507308C2 (en) * 1995-12-20 1998-05-11 Tetra Laval Holdings & Finance Method and apparatus for providing a joint seal of polymer-coated aluminum
CN108528851B (en) * 2017-03-03 2022-02-01 利乐拉瓦尔集团及财务有限公司 Inductor for induction welding of packaging material
CN108357732B (en) * 2018-03-27 2020-10-09 广州市铭慧机械股份有限公司 High-frequency induction heating mechanism

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Publication number Priority date Publication date Assignee Title
US2946168A (en) * 1957-10-08 1960-07-26 Rca Corp Method and apparatus for sealing metal foil
US3461014A (en) * 1964-06-11 1969-08-12 Albert L James Magnetic induction method for heat-sealing and bonding predetermined sealing areas
AT302908B (en) * 1971-01-11 1972-11-10 Karlsruhe Augsburg Iweka Device for the production of transverse closures on tube-shaped, compressible containers, by means of inductively supplied high-frequency energy

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SE7712890L (en) 1978-05-27
AT366976B (en) 1982-05-25
FR2372026A1 (en) 1978-06-23
DE2653753C2 (en) 1986-04-17
NL7712787A (en) 1978-05-30
DE2653753A1 (en) 1978-06-01
FR2372026B1 (en) 1982-10-29
ATA838677A (en) 1981-10-15

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