DK161880B - PROCEDURE AND APPARATUS FOR PACKAGING OF STACKED GOODS WITH SHRIMP WRAP - Google Patents
PROCEDURE AND APPARATUS FOR PACKAGING OF STACKED GOODS WITH SHRIMP WRAP Download PDFInfo
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- DK161880B DK161880B DK546582A DK546582A DK161880B DK 161880 B DK161880 B DK 161880B DK 546582 A DK546582 A DK 546582A DK 546582 A DK546582 A DK 546582A DK 161880 B DK161880 B DK 161880B
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- frame
- stack
- heat
- shrinkage
- foil
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Classifications
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- 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
- B65B9/13—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 the preformed tubular webs being supplied in a flattened state
- B65B9/135—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 the preformed tubular webs being supplied in a flattened state for palletised loads
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- 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
- B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
- B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
- B65B53/06—Shrinking wrappers, containers, or container covers during or after packaging by heat supplied by gases, e.g. hot-air jets
- B65B53/066—Mobile frames, hoods, posts or the like
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Basic Packing Technique (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
- Packages (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Container Filling Or Packaging Operations (AREA)
- Stacking Of Articles And Auxiliary Devices (AREA)
- Closing Of Containers (AREA)
- Making Paper Articles (AREA)
Abstract
Description
DK 161880 BDK 161880 B
Opfindelsen angår en fremgangsmåde til at emballere en varestabel med en krympefolie, der krymper under påvirkning af varme, hvorved folien fra et forråd oppefra i form af en slange føres til en krymperamme, slangens frie 5 ende fastgøres til denne krymperamme og spiles ud, slangen svejses sammen på tværs og afskæres i en til stablens højde svarende afstand fra dens frie ende for at danne en lukke længde slange og adskille denne længde fra forrådet, den lukkede længde slange trækkes ned over stablen 10 ved at sænke krymperammen, og varmekrympningen finder sted under den efterfølgende hævning af krymperammen.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a method of packaging a product stack with a shrink film that shrinks under the influence of heat, whereby the film from a stock from the top in the form of a hose is fed to a shrink frame, the free end of the hose is attached to this shrink frame and played out, the hose is welded. together transversely and cut at a height corresponding to the height of the stack from its free end to form a closed length hose and separate this length from the stock, the closed length hose is pulled down over the stack 10 by lowering the shrinkage frame and the heat shrinkage takes place below it. subsequent raising of the shrinkage frame.
En sådan metode og et hertil hørende apparat kendes fra patentskriftet DE-A-2 146 464. Ved hjælp af det således 15 kendte apparat har det været muligt at rationalisere fremgangsmåden i vid udstrækning, idet denne kan udføres ved en enkel station uden nævneværdig indsats fra betjeningspersonalet .Such a method and associated apparatus is known from the patent specification DE-A-2 146 464. By means of the apparatus thus known it has been possible to rationalize the process extensively, since it can be carried out at a simple station without appreciable effort from the operating staff.
20 Ved store ydelser er der imidlertid fare for, at den krympefolie, som er beregnet til den næstfølgende stabel, krympes i utide af den opstrømmende varme. Den produktion, som fremgangsmåden og apparatet ifølge ovennævnte patentskrift kan yde, er derfor i praksis begrænset.However, for large services, there is a danger that the shrink film intended for the next stack will shrink in excess of the flowing heat. The production which the method and apparatus according to the above patent can provide is therefore in practice limited.
2525
Med henblik på at overvinde denne ulempe er fremgangsmåden ifølge opfindelsen som noget nyt og særegent indrettet således, at den folie, som er beregnet til den næstfølgende stabel, afskærmes mod varmen under varme-30 krympningen. Derved kan det på enkel måde undgås, at folien ikke udsættes for så meget opstrømmende varme, at den krymper for tidligt.In order to overcome this disadvantage, the method according to the invention is arranged as something new and peculiarly such that the foil intended for the next stack is shielded from the heat during the heat shrinkage. In this way, it can be easily avoided that the foil is not exposed to so much flowing heat that it shrinks prematurely.
Opfindelsen angår også et apparat til udøvning af frem-35 gangsmåden, og som omfatter en vertikalt bevægelig krymperamme med udspilings- og gribeorganer, hvorved apparatet med krymperammen er indrettet til at opvarme denThe invention also relates to an apparatus for practicing the method, which comprises a vertically movable shrinkage frame with recess and gripping means, wherein the apparatus with the shrinkage frame is arranged to heat it.
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2 folie, der omgiver en stabel; en indretning til fra oven at tilføre en slangeformig folie fra forrådet ned mod krymperammen; og en svejse- og afskæringsmekanisme, som er anbragt over krymperammen. Det nye og ejendommelige 5 ved dette apparat ifølge opfindelsen er, at der mellem den folie, som er beregnet til den næstfølgende stabel, og krymperammen findes en varmeafskærmningsindretning.2 foil surrounding a stack; a device for supplying a tubular foil from the stock down from above to the shrinkage frame; and a welding and cutting mechanism arranged over the shrink frame. The new and unique feature of this apparatus according to the invention is that between the foil intended for the next stack and the shrink frame there is a heat shielding device.
Denne varmeafskærmningsindretning kan desuden ifølge op-10 findelsen være dannet af svejsemekanismen, som omfatter et par svejsebakker, der er indrettet således, at de lukkes under krympningen. Derved opnås på simpel måde en afskærmning af den folie, som endnu ikke er krympet.This heat shielding device can furthermore according to the invention be formed by the welding mechanism, which comprises a pair of welding trays arranged so that they are closed during the shrinkage. This provides a simple shielding of the film which has not yet shrunk.
15 Ved en yderligere udvikling af. denne udførelsesform er varmeafskærmningsindretningen udstyret med plader eller skærme, hvorved det er muligt at tilføre folien selv under krympeprocessen, således at en ny længde folie allerede hænger klar, når krympeprocessen er færdig.15 By further developing the. In this embodiment, the heat shielding device is provided with plates or screens, whereby it is possible to apply the film even during the shrinking process, so that a new length of film already hangs ready when the shrinking process is complete.
2020
Yderligere udviklinger af denne udførelsesform er angivet i krav 5 og 6.Further developments of this embodiment are set forth in claims 5 and 6.
Opfindelsen forklares nærmere under henvisning til 25 den stærkt skematiserede tegning, hvor fig. 1 viser en første udførelsesform for et apparat til udøvelse af fremgangsmåden ifølge opfindelsen, set skråt forfra i perspektiv, 30 fig. 2 en anden udførelsesform for et apparat ifølge opfindelsen, set skråt forfra i perspektiv, fig. 3 dette apparat set fra en side, fig. 4 samme set fra en anden side, 35The invention is further explained with reference to the highly schematic drawing, in which fig. 1 shows a first embodiment of an apparatus for carrying out the method according to the invention, viewed diagonally in perspective, FIG. 2 is a perspective view of another embodiment of an apparatus according to the invention; FIG. 3 is a side view of this apparatus; FIG. 4 same seen from another page, 35
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3 fig. 5 samme, men med de bevægelige dele i en anden stilling, fig. 6 en afskærings- og svejsemekanisme til apparatet i 5 skematiseret form og delvis i snit fig. 7 set fra oven i skematiseret form, hvorledes ud spilingen af folien til at begynde med foregår ved hjælp af bevægelige sugekasser, samt et sæt 10 små gribere, og fig. 8 en griber af den i fig. 7 viste art i dobbeltret- vinklet afbildning og i større målestok.3 FIG. 5 shows the same, but with the moving parts in a different position; FIG. 6 shows a cutting and welding mechanism for the apparatus in schematic form and partly in section, FIG. Figure 7 is a schematic top view of how the film is initially played by moving suction boxes, as well as a set of 10 small grippers; 8 shows a gripper of the embodiment shown in FIG. 7 in double-right angles and on a larger scale.
15 I fig. 1 er der vist et apparat, der består af en vandret krymperamme 1, der er lodret forskydelig på en søjle 2, og som er beregnet til at emballere en kasseformet stabel 3 med krympefolie. Folien udgøres af en rørslange, der kommer fra en forrådsrulle 4 ved bagsiden af apparatet.In FIG. 1, there is shown an apparatus consisting of a horizontal shrinkage frame 1 which is vertically displaceable on a column 2 and which is intended to package a box-shaped stack 3 with shrink film. The foil is constituted by a tube hose coming from a supply roll 4 at the rear of the apparatus.
20 Folien eller rørslangen føres herfra via ruller eller gi ideskinner op over apparatet og ud i en konsol 5, der ender over krymper ammen 1. I konsollen 5 kan der være indbygget mekanismer til afskæring og sammensvejsning af rørslangen, men der kan også i stedet anvendes en rør-25 slange, der i forvejen er forsynet med tværgående svæk-ningsriller og sammensvejsninger med passende afstand. I almindelighed vil der ligeledes i konsollen 5 være anbragt valsepar til fremføring af folien. Krymperammen 1 er ved de indre kanter udstyret med opvarmningsorganer, 30 der ved den foreliggende opfindelse hensigtsmæssigt kan være gasbrændere. Endvidere er krymperammen 1 ved de indre kanter forsynet med gribere eller hægter, hvormed den nedre kant af den folie, der skal trækkes ned over stablen 3, kan fastgøres. Endelig har apparatet et styre-35 panel 6 med en programstyreindretning.20 The foil or pipe hose is guided from here via rollers or grease rails up the apparatus and into a bracket 5 which ends over the shrinkage of the breast 1. In the bracket 5 there may be built-in mechanisms for cutting and welding the pipe hose, but alternatives may also be used instead a tube-25 hose already provided with transverse weakening grooves and welds at a suitable distance. In general, roller pairs will also be provided in the bracket 5 for advancing the film. The shrinkage frame 1 is provided at the inner edges with heating means 30 which may suitably be gas burners in the present invention. Further, the shrink frame 1 is provided with grippers or hooks at the inner edges, by means of which the lower edge of the foil to be pulled down over the stack 3 can be secured. Finally, the apparatus has a control panel 6 with a program control device.
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44
Dette apparat, der er halvautomatisk, virker nu på følgende måde. Folien fremføres af en betjeningsperson enten manuelt eller maskinelt ved hjælp af det nævnte, men ikke viste valsepar. Herefter udspiles folien manuelt og fast-5 gøres til krymperammen 1, der befinder sig i netop den viste stilling. Derefter aktiveres afskærings- og svejsemekanismen eller en hætte af ri ves, hvis der er tale om folie, der i forvejen er forsynet med svækningsriller. Operatøren sætter nu krymperammen 1 i nedadgående bevæg-10 else, der hensigtsmæssigt foregår maskinelt, og herunder trækkes foliehætten ned over stablen 3. Når krymperammen 1 er nået til sin nedre stilling, frigøres folien fra griberne eller hægterne og krympningen iværksættes, dvs. krymperammen sættes i opadgående bevægelse samtidig med 15 at opvarmningsorganerne aktiveres. Når krymperammen 1 er nået tilbage til den viste stilling, er operationen slut og kan begynde forfra med~en ny stabel.This semi-automatic device now operates as follows. The foil is fed by an operator either manually or mechanically by means of the said pair of rolls, but not shown. Thereafter, the film is manually peeled off and fastened to the shrink frame 1, which is in precisely the position shown. Then the cutting and welding mechanism or a cap of ri ves is activated in the case of foil already provided with weakening grooves. The operator now places the shrink frame 1 in a downward movement which is conveniently carried out mechanically, and including the film cap is pulled down over the stack 3. When the shrink frame 1 has reached its lower position, the film is released from the grippers or fasteners and the shrinkage is initiated, ie. the shrinkage frame is set in upward motion while activating the heating means. Once the shrink frame 1 has returned to the position shown, the operation is over and can begin again with ~ a new stack.
Fig. 2, 3, 4 og 5 viser en videreudvikling af det i fig.FIG. 2, 3, 4 and 5 show a further development of the embodiment shown in FIG.
20 1 viste apparat, hvor spredningen og fastgørelsen af fo lien er automatiseret, dvs. apparatet er fuldautomatisk. Tilsvarende dele bærer samme henvisningstal. Udover de i forvejen omtalte elementer er apparatet udstyret med et par sugekasser 7 og 8, der er monteret på undersiden af 25 krymperammen 1, og som på skinner er styret til synkron bevægelse mod hinanden og bort fra hinanden. På sugekasserne 7 og 8 er der monteret elementer, der ligger nedenfor sugefladerne, men som rager ud mod den anden sugekasses tilsvarende element. Disse elementer er imidlertid 30 forsat for hinanden på en sådan måde, at sugekassernes sugeflader alligevel kan ligge næsten eller helt an mod hinanden.20 in which the spreading and fastening of the foil is automated, ie. the appliance is fully automatic. Similar parts carry the same reference number. In addition to the aforementioned elements, the apparatus is equipped with a pair of suction boxes 7 and 8 mounted on the underside of the shrink frame 1 and which are guided on rails for synchronous movement towards each other and away from each other. Suction boxes 7 and 8 are fitted with elements which lie below the suction surfaces but protrude against the corresponding element of the other suction box. However, these elements are arranged for each other in such a way that the suction surfaces of the suction boxes can nevertheless be almost or completely opposite to each other.
På hver af sugekasseme 7 og 8 er der monteret en eller 35 flere sugeblæsere 9, 10, som vist i fig. 3 i tilknytning til sugekassen 7. Sugesiden af disse blæsere er naturligvis sluttet til sugekasserne, medens tryksiden er forbun-On each of the suction boxes 7 and 8 one or 35 more suction fans 9, 10 are mounted, as shown in FIG. 3 in connection with the suction box 7. The suction side of these fans is, of course, connected to the suction boxes, while the pressure side is connected.
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5 det med et skuffelignende element 11 og 12, der strækker sig under hver sugekasse og kan skydes ind under denne, eller være i halv udrykket tilstand i retning mod hinanden, eller ind mod midten af krymperammen 1. Herved op-5 står der skråt opadrettede dysespalter. Når de skuffelignende elementer 11 og 12 er i den indskudte stilling, hvilket er tilfældet, når sugekasserne 7 og 8 er kørt ind mod hinanden, er der sørget for luftafgang fra sugeblæserne på anden måde. Det skal bemærkes, at de skuffelig-10 nende elementer også kan være fastmonteret på sugekasserne. På sugekasserne 7 og 8 er der som vist i fig. 7 endvidere monteret et første sæt små gribere 13, 14, 15 og 16. Disse gribere er af overskuelighedshensyn ikke vist i de foregående figurer. Formen af disse gribere er vist i 15 den dobbeltretvinklede afbildning i fig. 8. Fig. 7 viser i øvrigt en rørslange 17 af krympefolie, der i sammenfoldet tilstand har en dobbelt fals i hver side, dvs. en indadbukket kant og to udadvendende kanter i hver side.5 shows it with a drawer-like elements 11 and 12 which extend under each suction box and can be pushed under it, or be in semi-extended state in the direction towards each other, or towards the center of the shrink frame 1. Thereby up-5 is inclined upwards nozzle columns. When the drawer-like elements 11 and 12 are in the inserted position, which is the case when the suction boxes 7 and 8 are pushed in towards each other, air discharge from the suction fans is provided otherwise. It should be noted that the disappointing elements can also be mounted on the suction boxes. On the suction boxes 7 and 8, as shown in FIG. 7 further mounted a first set of small grippers 13, 14, 15 and 16. For reasons of clarity, these grippers are not shown in the preceding figures. The shape of these grippers is shown in the double-right angle view of FIG. 8. FIG. 7 also shows a tube hose 17 of shrink film which in the folded state has a double seam at each side, ie. one inward curved edge and two outward edges in each side.
20 På sugekasserne 7 og 8 er der endelig som vist i fig. 2, 4 og 5 et andet sæt store gribere 18, 19, 20 og 21 i form af svingelige stænger, der er svingelige mellem en vandret og en lodret stilling omkring vandrette akser. I fig.20 Finally, as shown in FIG. 2, 4 and 5 another set of large grippers 18, 19, 20 and 21 in the form of pivotal rods pivotable between a horizontal and a vertical position about horizontal axes. In FIG.
4 er stængerne 19 og 20 i vandret stilling, idet stænger-25 ne forløber vinkelret på papirets plan.4, the rods 19 and 20 are in a horizontal position, the rods 25 extending perpendicular to the plane of the paper.
Endelig er der over krymperammen 1 i forbindelse med denne monteret en anden vandret ramme 22, der er understøttet over en søjle 23, som eventuelt kan have indbygget en 30 teleskopisk del, således at rammens 22 afstand til krym-perammen 1 kan varieres.Finally, there is mounted over the shrink frame 1 in connection therewith another horizontal frame 22, supported over a column 23, which may have a built-in telescopic part, so that the distance of the frame 22 to the shrink frame 1 can be varied.
Fig. 6 viser en afskærings- og svejsemekanisme, der er indbygget i den ydre ende af konsollen 5. Et valsepar 24 35 og 25 fremfører folien 26 til en spalte mellem to par holdebakker 27, 28 og 29, 30, hvoraf det sidstnævnte og nederste par tillige er svejsebakker. En kniv 31 er fast-FIG. 6 shows a cutting and welding mechanism built into the outer end of the bracket 5. A roll pair 24 35 and 25 advances the foil 26 to a gap between two pairs of holding trays 27, 28 and 29, 30, the latter and the lower pair also are welding trays. A knife 31 is fixed
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6 gjort til en endeløs kæde 32, 33, der trækkes frem og tilbage af en ikke vist motor i de antydede understøtninger. Kniven kan også køre i samme retning hele vejen rundt.6 made into an endless chain 32, 33 which is pulled back and forth by a motor not shown in the indicated supports. The knife can also run in the same direction all around.
55
Apparatet ifølge fig. 2-8 virker nu på følgende måde.The apparatus of FIG. 2-8 now works as follows.
Ved starten af en operation befinder krymperammen 1 sig i en øvre stilling, f.eks. den i figurerne viste. Herefter 10 fremføres folien ved hjælp af valseparret 24 og 25, indtil foliens nedre kant er i niveau med sugekassernes 7 og 8 nedre kanter. Sugekasserne 7 og 8 ligesom bakkerne 27, 28 og 29, 30 er naturligvis kørt bort fra hinanden, så·*· ledes at folien frit kan passere. Længden af den nedhæng-15 ende folie er naturligvis tilpasset efter højden af den stabel, der skal emballeres. Afmålingen af denne længde kan ske ved programmering, men den kan også foregå automatisk med i og for sig kendte følere.At the start of an operation, the shrink frame 1 is in an upper position, e.g. the one shown in the figures. Thereafter, the foil is advanced by means of the roll pair 24 and 25 until the lower edge of the foil is level with the lower edges of the suction boxes 7 and 8. The suction boxes 7 and 8, like the trays 27, 28 and 29, 30, are of course moved away from each other, so that the film is allowed to pass freely. The length of the hanging film is of course adapted to the height of the stack to be packaged. Measuring this length can be done by programming, but it can also be done automatically with sensors known per se.
20 Når fremføringen af folien er tilendebragt, føres sugekasserne 7 og 8 mod hinanden, således at de indeslutter foliens nedre kant. Derefter starter sugeblæserne 9, 10 m.fl. og sugekasserne 7 og 8 føres et lille stykke ud fra hinanden og standses. Denne stilling er vist i fig. 4 og 25 7. I denne stilling aktiveres de små gribere 13, 14, 15 og 16 og svinges i pilenes retning som vist i fig. 7, hvorved de kommer til at fastholde de fire udragende kanter af folietværsnittet udefra. Derefter bringes sugekasserne 7 og 8 til at fortsætte bevægelsen, indtil folie-30 tværsnittet er åbnet så meget at det andet sæt gribere 18, 19, 20 og 21 med sikkerhed kan svinges op indeni folien. Dette sker så samtidig med at de første, små gribere 13, 14, 15 og 16 svinges tilbage til udgangsstillingen som vist i fig. 7. Det skal her indskydes at det andet 35 sæt gribere 18, 19, 20 og 21 er anbragt i god afstand fra sugefladerne for at sikre en korrekt opsvingning. Denne afstand får imidlertid også betydning i det følgende20 When the feed of the foil is completed, the suction boxes 7 and 8 are brought towards each other so as to enclose the lower edge of the foil. Then the suction fans 9, 10 and others start. and the suction boxes 7 and 8 are slightly apart and stopped. This position is shown in FIG. 4 and 25 7. In this position, the small grippers 13, 14, 15 and 16 are activated and pivoted in the direction of the arrows as shown in FIG. 7, thereby retaining the four protruding edges of the film cross section from the outside. Then the suction boxes 7 and 8 are moved to continue the movement until the foil-30 cross-section is opened so much that the second set of grippers 18, 19, 20 and 21 can be swung up safely within the foil. This is done at the same time as the first small grippers 13, 14, 15 and 16 are pivoted back to the starting position as shown in FIG. 7. It should be added here that the second 35 sets of grippers 18, 19, 20 and 21 are located at a good distance from the suction surfaces to ensure proper recovery. However, this distance also becomes important in the following
DK 161880 BDK 161880 B
7 trin, hvor sugekasserne bevæges længere bort fra hinanden og derved gennem griberne 18, 19, 20 og 21 strammer den nedre del af folietværsnittet op til en rektangulær form.There are seven steps in which the suction boxes are moved further apart and thereby through the grippers 18, 19, 20 and 21 the lower part of the foil cross section tightens up to a rectangular shape.
Derved trækkes folien nemlig fri af sugefladerne, således 5 at luft kan strømme ind. Dette bevirker at sugeblæserne nu kommer til at levere luft ud af de skråt opadrettede dysespalter ved de skuffelignende elementer 11 og 12, der er i stilling som vist i fig. 4. Herved blæses der fra to sider en luftstrøm op i folien, der nu kan frigøres for-10 oven af bakkerne 29 og 30, efter at kniven 31 i mellemtiden har været aktiveret. Sugekasserne 7 og 8 ender i den i fig. 5 viste stilling, hvor rammen 22 får betydning, idet den netop har en sådan størrelse, at den kan hindre den nu dannede foliehættes Øvre del i at svinge 15 fra side til side eller i at blafre som følge af turbulensen i luften. Som nævnt kan rammen 22 være højdeindstillelig, hvis der arbejdes med varierende stabelhøjder. Herefter kan foliehætten trækkes ned over stablen 3 uden at blive beskadiget af stablens øvre hjørner eller kan-20 ter. Dette sker ved at rammerne og de derpå monterede dele føres ned ad søjlen 2. Når krymperammen er kommet til sin nedre stilling, bringes sugekasserne til at køre så meget mod hinanden, at griberne 18, 19, 20 og 21 aflaster folien så meget, at griberne kan svinges ned til vandret 25 stilling fri af folien, hvorefter krympningen kan påbegyndes under opadgående bevægelse af krymperammen. Forinden kan dog bakkerne 27, 28 og 29, 30 være kørt mod hinanden i den lukkede stilling for at afskærme folien, der ikke skal krympes for tidligt. Det kan imidlertid og-30 så tænkes, at man har monteret regulære afskærmningsplader eller skjolde, som tillader en fremføring af folien, medens krympningen foregår, således at der under bakkerne 27, 28 og 29, 30 haanger en længde folie klar, når krymperammen er nået til den øvre stilling og klar til en ny 35 operation. Derved kan der vindes tid. Man kan også tænke sig, at det eller de rum, hvor folien fremføres, køles ved hjælp af en køleblæser.In this way, the film is pulled free of the suction surfaces so that air can flow in. This causes the suction fans to now deliver air out of the obliquely upwardly directed nozzle slots at the drawer-like elements 11 and 12 which are in position as shown in FIG. 4. From this, an air flow from two sides is inflated in the foil, which can now be released at the top of the trays 29 and 30, after the knife 31 has in the meantime been activated. The suction boxes 7 and 8 end in the embodiment shown in FIG. 5, where the frame 22 is of importance, being precisely such a size that it can prevent the upper part of the now formed film cap from pivoting 15 from side to side or from fluttering due to the turbulence in the air. As mentioned, frame 22 may be height adjustable if varying stack heights are used. Thereafter, the foil cap can be pulled down over the stack 3 without being damaged by the upper corners or edges of the stack. This is done by moving the frames and the parts mounted thereon down the column 2. When the shrink frame has reached its lower position, the suction boxes are brought so much against each other that the grippers 18, 19, 20 and 21 relieve the foil so much that the grippers can be pivoted down to a horizontal position free of the foil, after which the shrinkage can be started during upward movement of the shrink frame. Prior to this, however, trays 27, 28 and 29, 30 may be pushed against each other in the closed position to shield the foil, which should not be shrunk prematurely. However, it is also conceivable that regular shielding plates or shields may be fitted which allow the foil to be fed while shrinkage occurs, so that under the trays 27, 28 and 29, 30 a length of foil is hung when the shrink frame is reached the upper position and ready for a new operation. Thereby time can be gained. It is also conceivable that the room or rooms where the foil is fed are cooled by means of a cooling fan.
88
DK 16188 0 BDK 16188 0 B
I det hele taget kan specielt programmet for drift af et apparat ifølge opfindelsen tænkes varieret indenfor vide rammer. Det skal således bemærkes, at der ved afslutningen af processen ikke er nødvendigt at køre sugekasserne 5 mod hinanden for at frigøre griberne 18, 19, 20 og 21 fra folien. Man kan således uden videre dreje griberne direkte fri af folien til vandret stilling.On the whole, in particular, the program of operation of an apparatus according to the invention can be thought to be varied within wide limits. Thus, it should be noted that at the end of the process, it is not necessary to drive the suction boxes 5 towards each other to release the grippers 18, 19, 20 and 21 from the foil. Thus, the grippers can be turned directly free of the foil to a horizontal position.
10 15 20 25 30 3510 15 20 25 30 35
Claims (6)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3117531 | 1981-05-04 | ||
| DE19813117531 DE3117531A1 (en) | 1981-05-04 | 1981-05-04 | METHOD AND APPARATUS FOR PACKAGING STACKS AND THE LIKE WITH A HOT SHRINK FILM |
| DK8200038 | 1982-04-30 | ||
| PCT/DK1982/000038 WO1982003833A1 (en) | 1981-05-04 | 1982-04-30 | Method and apparatus for the packing of stacked goods with shrink foil |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK546582A DK546582A (en) | 1982-12-09 |
| DK161880B true DK161880B (en) | 1991-08-26 |
| DK161880C DK161880C (en) | 1992-02-03 |
Family
ID=6131382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK546582A DK161880C (en) | 1981-05-04 | 1982-12-09 | PROCEDURE AND APPARATUS FOR PACKAGING OF STACKED GOODS WITH SHRIMP WRAP |
Country Status (6)
| Country | Link |
|---|---|
| EP (2) | EP0252527A3 (en) |
| JP (1) | JPS58500992A (en) |
| AT (1) | ATE33601T1 (en) |
| DE (4) | DE3117531A1 (en) |
| DK (1) | DK161880C (en) |
| WO (1) | WO1982003833A1 (en) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3327996A1 (en) * | 1983-08-03 | 1985-02-14 | MSK - Verpackungs-Systeme GmbH, 4190 Kleve | METHOD FOR PACKING PALLETIZED GOODS STACKS AND DEVICE FOR CARRYING OUT THIS METHOD |
| FR2564033B1 (en) * | 1984-05-10 | 1987-01-02 | Thimon Ste Nouvelle Exploit | METHOD FOR HEATING - WITH A VIEW TO RETRACTING IT - A HEAT SHRINKABLE PLASTIC SHEATH COVERING A LOAD AND A MACHINE FOR CARRYING OUT THE METHOD |
| DE8513892U1 (en) * | 1985-05-10 | 1985-09-05 | MSK - Verpackungs-Systeme GmbH, 4190 Kleve | Device for covering and shrinking stacks of goods with shrink hoods |
| DE3621297A1 (en) * | 1986-06-25 | 1988-01-14 | Moellers Maschf Gmbh | DEVICE FOR PULLING ON AND SHRINKING A SHRINK FILM HOOD OVER OR ON A STACK. |
| DE3639472A1 (en) * | 1986-11-18 | 1988-05-19 | Moellers Maschf Gmbh | DEVICE FOR PRODUCING A PACKAGING UNIT COMPLETELY COVERED WITH SHRINK FILM |
| DE3873583D1 (en) * | 1987-03-11 | 1992-09-17 | Lachenmeier Kurt Aps | METHOD AND DEVICE FOR PACKAGING ITEMS WITH A PLASTIC PLASTIC FILM. |
| DE3714811C2 (en) * | 1987-05-04 | 1999-04-29 | Kurt Lachenmeier A S Kl Indust | Device for covering and shrinking a plastic film onto goods to be packaged |
| DE3707877A1 (en) * | 1987-03-11 | 1988-09-22 | Lachenmeier Kurt Aps | Process and apparatus for the packaging of articles with a web-like plastic foil |
| FR2644136B1 (en) * | 1989-03-08 | 1991-05-03 | Balgros Jacques | HOT AIR RETRACTION DEVICE |
| DE4038416A1 (en) * | 1990-12-01 | 1992-06-04 | Nuetro Maschinen & Anlagen | Packing equipment covering item with flexible hood - uses guide rollers located in swivelable frame between cover roller and deflection roller |
| DE4201303A1 (en) * | 1992-01-20 | 1993-07-22 | Carl Hofmann Ringlaeufer Und R | METHOD AND DEVICE FOR PACKING PORTIONS OF SMALL PARTS STACKED ON A REMOVABLE MAGAZINE SPIN |
| EP0597141A1 (en) * | 1992-11-10 | 1994-05-18 | VfI Gesellschaft für Verpackungstechnik mbH | Method and apparatus for the packing of goods stacked on a pallet |
| DE9310218U1 (en) * | 1993-07-09 | 1993-09-02 | MSK-Verpackungs-Systeme GmbH, 47533 Kleve | Device for shrinking a shrink hood pulled over a stack of goods |
| IT1313378B1 (en) * | 1999-09-23 | 2002-07-23 | Sestese Off Mec | COMBINED WRAPPING MACHINE EQUIPMENT |
| DE102004001301B4 (en) * | 2004-01-08 | 2007-03-22 | Joachim Braun | Packaging device for packing pallets |
| DE102005062609A1 (en) * | 2005-12-23 | 2007-07-05 | Lachenmeier A/S | Method for packing articles e.g. palleted stack of goods with a film hood, involves folding flat hose in v-shape, after final removal from supply and before closing outer sides |
| ATE455702T1 (en) * | 2006-09-15 | 2010-02-15 | Lachenmeier As | PACKAGING DEVICE, LOCKING MECHANISM FOR A PACKAGING DEVICE AND METHOD FOR OPERATING THE SAME |
| IT1394521B1 (en) * | 2008-12-19 | 2012-07-05 | Marpak Oms Group S R L | PACKING EQUIPMENT, PROVIDING THERMORETRIC OVEN AND HEAT PROTECTION MEANS. |
| CN103204267A (en) * | 2013-03-04 | 2013-07-17 | 大连工业大学 | Adjustable plastic film bag opener |
| DE102019216346A1 (en) | 2019-10-23 | 2021-04-29 | Signode Industrial Group Llc | Method and device for packaging a stack of goods in a tubular stretch film |
| DE102020201377A1 (en) | 2020-02-05 | 2021-08-05 | Julian Gockel-Böhner | Device for covering a board-shaped body with an endless belt |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE335498B (en) * | 1968-02-07 | 1971-05-24 | E Gustavsson | |
| CH528405A (en) * | 1968-07-18 | 1972-09-30 | Alkor Oerlikon Plastic Gmbh | Device for covering a hose over objects stacked on a base |
| DE2146446A1 (en) * | 1970-09-16 | 1972-05-04 | Nippon Industry Machine Co Ltd., Kyoto (Japan) | Method and device for packaging objects |
| DE2352278A1 (en) * | 1972-10-18 | 1974-05-22 | Ahrendt & Birkendahl Ohg | DEVICE FOR SHRINVING GUARDS IN PLASTIC FILM |
| US4050219A (en) * | 1976-02-19 | 1977-09-27 | Comptex, Inc. | Bagging machine |
| DE2706955A1 (en) * | 1977-02-18 | 1978-08-24 | Keller Gmbh & Co Kg | Wrapping unit for stacks of bricks - has shrink film stretching grips mounted movably on frame above wrapper |
| DE2804941A1 (en) * | 1978-02-06 | 1979-08-16 | Msk Verpackung Syst Gmbh | SHRINKING DEVICE FOR SHRINKING IN ACCESSORIES |
-
1981
- 1981-05-04 DE DE19813117531 patent/DE3117531A1/en not_active Withdrawn
-
1982
- 1982-04-30 JP JP57501527A patent/JPS58500992A/en active Pending
- 1982-04-30 AT AT82901411T patent/ATE33601T1/en not_active IP Right Cessation
- 1982-04-30 DE DE198787110175T patent/DE252527T1/en active Pending
- 1982-04-30 DE DE19823242677 patent/DE3242677T1/en active Granted
- 1982-04-30 EP EP87110175A patent/EP0252527A3/en not_active Withdrawn
- 1982-04-30 EP EP82901411A patent/EP0078284B1/en not_active Expired
- 1982-04-30 WO PCT/DK1982/000038 patent/WO1982003833A1/en active IP Right Grant
- 1982-04-30 DE DE8282901411T patent/DE3278353D1/en not_active Expired
- 1982-12-09 DK DK546582A patent/DK161880C/en active
Also Published As
| Publication number | Publication date |
|---|---|
| DE3242677T1 (en) | 1984-10-31 |
| DK161880C (en) | 1992-02-03 |
| EP0252527A3 (en) | 1988-09-14 |
| DE3117531A1 (en) | 1982-11-18 |
| DK546582A (en) | 1982-12-09 |
| ATE33601T1 (en) | 1988-05-15 |
| EP0078284A1 (en) | 1983-05-11 |
| DE252527T1 (en) | 1988-05-19 |
| JPS58500992A (en) | 1983-06-23 |
| EP0078284B1 (en) | 1988-04-20 |
| DE3242677C2 (en) | 1992-09-10 |
| DE3278353D1 (en) | 1988-05-26 |
| WO1982003833A1 (en) | 1982-11-11 |
| EP0252527A2 (en) | 1988-01-13 |
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