SE513639C2 - Apparatus for sealing tubular containers for food products - Google Patents

Apparatus for sealing tubular containers for food products

Info

Publication number
SE513639C2
SE513639C2 SE9804255A SE9804255A SE513639C2 SE 513639 C2 SE513639 C2 SE 513639C2 SE 9804255 A SE9804255 A SE 9804255A SE 9804255 A SE9804255 A SE 9804255A SE 513639 C2 SE513639 C2 SE 513639C2
Authority
SE
Sweden
Prior art keywords
string
hose
tube
tool parts
pressure
Prior art date
Application number
SE9804255A
Other languages
Swedish (sv)
Other versions
SE9804255D0 (en
SE9804255L (en
Inventor
Wilho Eriksson
Original Assignee
Wilho Eriksson
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 Wilho Eriksson filed Critical Wilho Eriksson
Priority to SE9804255A priority Critical patent/SE513639C2/en
Publication of SE9804255D0 publication Critical patent/SE9804255D0/en
Priority to EP99944119A priority patent/EP1107912A1/en
Priority to CN99802850A priority patent/CN1302270A/en
Priority to PCT/SE1999/000176 priority patent/WO1999039979A1/en
Priority to JP2000530425A priority patent/JP2002511364A/en
Priority to AU32816/99A priority patent/AU3281699A/en
Priority to CA002320108A priority patent/CA2320108A1/en
Priority to US09/600,863 priority patent/US6379483B1/en
Publication of SE9804255L publication Critical patent/SE9804255L/en
Publication of SE513639C2 publication Critical patent/SE513639C2/en

Links

Classifications

    • 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
    • B65B51/225—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 ultrasonic welding
    • 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
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/12—Subdividing filled tubes to form two or more packages by sealing or securing involving displacement of contents

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

The apparatus has V-shaped tool parts (4,5,6,7) which compress tube material into a string (3) arranged on each side of the tube passage path. The apparatus has V-shaped tool parts (4,5,6,7) which compress tube material into a string (3) arranged on each side of the tube passage path. The tool parts can displace in pairs in the transverse direction w.r.t. each other. Two supporting surfaces are formed between the pairs of tool parts for the opposing sides of the string. Two moveable jaws (10,11) are used for ultrasound sealing of the string, using pressure pulsations. The jaws have ridges and a cutting edge. The jaws are controlled by a compressor. The tube is continuously filled, is constricted and cut at regular intervals. The tube at the constricted point is subjected to a high and preferably pulsating pressure so that the meltable layers of the tube material adhere.

Description

513 639 Varje avsnörning omfattar två förslutningsställen, som vart och ett måste ha någon av de beskrivna linjeanordningarna. Mellan ställena, vars längd blir ca. 5 - 7 mm vardera, kan ett avstånd om nagra mm läm- nas opàverkat och mjukt för att inte efter den avskärning som där sker utgöra en skarp och därmed riskabel spets. Tidigare försök att elimi- nera problemet med kvarstannande rester av förpackningsinnehàll genom att göra tre efter varandra i slangens längsled följande svetsningar av känd typ har visserligen förbättrat tätheten men visat sig vara en oframkomlig väg, då resultatet inte alls motsvarar de ökade kostnader- na för tredubbel svetsning. 513 639 Each lacing includes two closure points, each must have one of the described line devices. Between the places, whose length is approx. 5 - 7 mm each, a distance of a few mm may be nas unaffected and soft so as not to after the cut that takes place there constitute a sharp and thus risky tip. Previous attempts to eliminate reduce the problem of residual packaging contents through to make three consecutive welds in the longitudinal direction of the hose of known type has admittedly improved the density but proved to be one impassable road, as the result does not at all correspond to the increased costs for triple welding.

Det bästa resultatet vad gäller både täthet och ekonomi uppnås med me- toden enligt uppfinningen genom användning av ultraljud för åstadkom- mande av pulsationen i trycket. Därvid anbringas först ett maximalt tryck för att från linjerna transportera resterna och samtidigt kall- forma slangmaterialet. Omedelbart och i en följd därefter sker förseg- lingen med hjälp av ultraljudet, som pà känt sätt utvecklar värme i slangmaterialet och under ett tryck som kan vara något lägre än ini- tialtrycket svetsar samman detta pà bràkdelen av en sekund. Vid den processen fungerar slangmaterialets mjukare skikt som smälta och häf- tar linjeformigt vid de övriga skikten samt innesluter resterna av förpackníngsinnehâll i linjernas mellanrum. Linjerna kan vara para- llella och transversella till slangen eller vara varandra korsande och bilda ett rutmönster. Deras antal måste vara minst fyra/avsnörnings- ställe, helst flera och de kan med fördel åstadkommas med en pà mots- varande sätt mönstrad stämpel, som arbetar mot ett mothàll enligt (sv.patentansökan nr 9800382-5). Även mothàllet kan vara mönstrat pà samma sätt. Mothàllet kan med fördel hàllas vid en konstant tem- peratur med hjälp av en kylanordning och en termostat. Valet av i slangens olika skikt ingående material måste givetvis följa de krav som förpackningens innehåll ställer, men som exempel kan nämnas att ,1 513 63-9' för livsmedel har med framgång använts kombinationen polyeten - poly- propen - polyeten liksom metallocen - polyeten - polyamid - polyeten - metallocen. Det är inte givet att alla skikten maste bestå av plast. Även plastbelagt, billigare4m3terial kan användas, om förpacknings- innehållet tillåter detta, §Qr_1juskänsliga varor kan plastbelagd me- tallfolie användas.The best results in terms of both density and economy are achieved with method according to the invention by using ultrasound to provide of the pulsation in the pressure. In this case, a maximum is first applied pressure to transport the residues from the lines and at the same time shape the hose material. Immediately and in succession thereafter, with the help of the ultrasound, which in a known way develops heat in the hose material and under a pressure which may be slightly lower than the the tial pressure welds this together in a fraction of a second. At it In the process, the softer layers of the hose material act as a melt and adhere takes linearly at the other layers and encloses the remnants of packaging contents at line intervals. The lines can be para- llella and transverse to the hose or be intersecting and form a grid pattern. Their number must be at least four / lacing several, preferably several, and they can advantageously be provided with one currently patterned stamp, which works against a resistance according to (Swedish patent application no. 9800382-5). The resistance can also be patterned in the same way. The resistance can advantageously be maintained at a constant temperature. temperature by means of a cooling device and a thermostat. The choice of i the different layers of material of the hose must of course comply with the requirements as the contents of the package indicate, but as an example it can be mentioned that , 1 513 63-9 ' for food, the combination of polyethylene - poly- propylene - polyethylene as well as metallocene - polyethylene - polyamide - polyethylene - metallocene. It is not a given that all layers must consist of plastic. Even plastic-coated, cheaper4m3terial can be used, if the packaging content allows this, §Qr_1sensitive goods can be plastic coated with pine foil is used.

Lämpliga materialval för stämpel och mothàll till metodens genomföran- de är för mothållet teflon¿gllgr teflonbelagd aluminium och för stäm- peln en metall, företrädesvis titan. Även stämpeln kan med hjälp av kylmedel och en termostat hållas vid en konstant temperatur.Appropriate material choices for stamping and resistance to the implementation of the method they are for the teflon-resistant teflon-coated aluminum and for the a metal, preferably titanium. Even the stamp can with the help of coolant and a thermostat are kept at a constant temperature.

Inom uppfinningstanken ligger också att trycklinjerna kan bestå av ra- der av varandra tangerande punkter och fördjupningar.It is also within the spirit of the invention that the pressure lines may consist of tangential points and depressions.

Claims (1)

513 639- Patentkrav . Metod att försluta förpackningar bestående av en slang som fylles kontinuerligt och med jämna mellanrum avsnöres och kapas, känne- tecknad därav, att slangen framställes av ett material bestående av flera skikt med olika smälttemperatur, att slangen vid avsnör- ningsställena sammanpressas till en sträng och att strängen ut- sättes för ett utefter flera linjer verkande, högt och företrädes- vis pulserande tryck av sädan styrka att materialets mer lättsmälta skikt blir häftande. . Metod enligt patentkravet 1, kännetecknad därav, att pulsationen i trycket àstadkommes med ultraljud. . Metod enligt patentkravet 1, kännetecknad därav, att linjerna är parallella till varandra och väsentligen transversella till slan- gens längdriktning. . Metod enligt patentkravet 1, kännetecknad därav, att linjerna är varandra korsande och därigenom bildar ett rutmönster. . Metod enligt patentkravet 2, 3 eller 4, kännetecknad därav, att trycket utövas med en rörlig, mönstrad stämpel av metall och ett motháll av teflon. . Metod enligt patentkravet 5, kännetecknad därav, att mothàllet är mönstrat på ett till stämpelns mönster svarande sätt. . Metod enligt patentkravet 5 eller 6, kännetecknad därav, att stäm- peln hàlles vid en konstant temperatur. .Metod enligt patentkravet 5, 6 eller 7, kännetecknad därav, att mothâllet hàlles vid en konstant temperatur.513 639- Patent claims. Method of closing packages consisting of a hose which is continuously and periodically filled and cut, characterized in that the hose is made of a material consisting of several layers with different melting temperatures, that the hose at the lacing points is compressed into a string and that the string is subjected to a high and preferably pulsating pressure acting along several lines of such strength that the more easily digestible layer of the material becomes adherent. . Method according to Claim 1, characterized in that the pulsation in the pressure is effected by ultrasound. . Method according to claim 1, characterized in that the lines are parallel to each other and substantially transverse to the longitudinal direction of the hose. . Method according to claim 1, characterized in that the lines are intersecting and thereby form a grid pattern. . Method according to Claim 2, 3 or 4, characterized in that the pressure is exerted with a movable, patterned metal stamp and a teflon anvil. . Method according to Claim 5, characterized in that the resistance is patterned in a manner corresponding to the pattern of the stamp. . Method according to Claim 5 or 6, characterized in that the piston is kept at a constant temperature. Method according to Claim 5, 6 or 7, characterized in that the resistance is maintained at a constant temperature.
SE9804255A 1998-02-10 1998-12-08 Apparatus for sealing tubular containers for food products SE513639C2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
SE9804255A SE513639C2 (en) 1998-12-08 1998-12-08 Apparatus for sealing tubular containers for food products
EP99944119A EP1107912A1 (en) 1998-02-10 1999-02-10 Apparatus and method for sealing a tubular container
CN99802850A CN1302270A (en) 1998-02-10 1999-02-10 Apparatus for method for sealing tubular container
PCT/SE1999/000176 WO1999039979A1 (en) 1998-02-10 1999-02-10 Apparatus and method for sealing a tubular container
JP2000530425A JP2002511364A (en) 1998-02-10 1999-02-10 Apparatus and method for sealing a tubular container
AU32816/99A AU3281699A (en) 1998-02-10 1999-02-10 Apparatus and method for sealing a tubular container
CA002320108A CA2320108A1 (en) 1998-02-10 1999-02-10 Apparatus and method for sealing a tubular container
US09/600,863 US6379483B1 (en) 1998-02-10 1999-02-10 Apparatus and method for sealing a tubular container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9804255A SE513639C2 (en) 1998-12-08 1998-12-08 Apparatus for sealing tubular containers for food products

Publications (3)

Publication Number Publication Date
SE9804255D0 SE9804255D0 (en) 1998-12-08
SE9804255L SE9804255L (en) 2000-06-09
SE513639C2 true SE513639C2 (en) 2000-10-16

Family

ID=20413596

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9804255A SE513639C2 (en) 1998-02-10 1998-12-08 Apparatus for sealing tubular containers for food products

Country Status (1)

Country Link
SE (1) SE513639C2 (en)

Also Published As

Publication number Publication date
SE9804255D0 (en) 1998-12-08
SE9804255L (en) 2000-06-09

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