EP0014504B1 - Appareil d'emballage pour emballer des articles dans un matériau thermo-soudable - Google Patents

Appareil d'emballage pour emballer des articles dans un matériau thermo-soudable Download PDF

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Publication number
EP0014504B1
EP0014504B1 EP19800200075 EP80200075A EP0014504B1 EP 0014504 B1 EP0014504 B1 EP 0014504B1 EP 19800200075 EP19800200075 EP 19800200075 EP 80200075 A EP80200075 A EP 80200075A EP 0014504 B1 EP0014504 B1 EP 0014504B1
Authority
EP
European Patent Office
Prior art keywords
sheet material
sealing
jaws
receptacle
sealing jaws
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
EP19800200075
Other languages
German (de)
English (en)
Other versions
EP0014504A1 (fr
Inventor
Johan Bernard Hendrik Robben
Hendrik Jakob Leutscher
Johannes Joseph Maria Ogink
Joannes Van Der Wees
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Instituut voor Bewaring en Verwerking Van Lanboux
Original Assignee
Instituut voor Bewaring en Verwerking Van Lanboux
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 Instituut voor Bewaring en Verwerking Van Lanboux filed Critical Instituut voor Bewaring en Verwerking Van Lanboux
Publication of EP0014504A1 publication Critical patent/EP0014504A1/fr
Application granted granted Critical
Publication of EP0014504B1 publication Critical patent/EP0014504B1/fr
Expired legal-status Critical Current

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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
    • 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
    • B65B9/20—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 webs being formed into tubes in situ around the filling nozzles
    • B65B9/213—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 webs being formed into tubes in situ around the filling nozzles the web having intermittent motion
    • 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
    • B65B63/00—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged
    • B65B63/02—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged for compressing or compacting articles or materials prior to wrapping or insertion in containers or receptacles
    • B65B63/022—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged for compressing or compacting articles or materials prior to wrapping or insertion in containers or receptacles using compressing chambers or plates moving in an endless path
    • 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
    • B65B9/06—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it
    • B65B9/073—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it the web having intermittent motion
    • 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
    • B65B9/20—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 webs being formed into tubes in situ around the filling nozzles
    • B65B9/2014—Tube advancing means

Definitions

  • the invention relates to a packaging apparatus for packaging articles in heat sealable material, in particular plastic sheet material, said apparatus comprising a substantially horizontal mandrel case for articles in line to be packaged, conveying means for stepwise conveying the articles towards the delivery end of said case, web feeding means for feeding at least one web of sheet material towards the mandrel case, folding means for folding said web about the mandrel case, longitudinal sealing means for sealing overlapping longitudinal edges of the web together and for thus forming a tube of sheet material, and transverse sealing means arranged at the delivery end of the mandrel case extending perpendicularly to the longitudinal sealing means.
  • a similar apparatus has been described in U.S. Patent Specification No. 2,747,346.
  • apparatuses or machines destined for forming bags and filling the bags with particles which known apparatuses or machines include a substantially vertical metal filling tube as well as a feeding mechanism for feeding a sheet material and folding the sheet material about said filling tube. Furthermore there are known sealing jaws for adhering the overlapping edges of the sheet material to each other by sealing, as well as sealing jaws for closing the lower extremity of the sheet material tube and pulling said tube down. As soon as a part of the tubelike sheet material has been closed and the same has been pulled down over a distance corresponding to one bag a metered quantity of particles, such as peanuts or salted biscuits, are dropped into the bag through the filling tube.
  • a metered quantity of particles such as peanuts or salted biscuits
  • the sealing jaws meanwhile returned to their starting position again cause the formation of a seal joint thereby simultaneously sealing the upper edge of the just filled bag and the lower edge of that part of the sheet tube situated just above.
  • a severing mechanism for severing the filled and completely closed bag from the tube of sheet material now closed at the lower edge.
  • the thus severed bag will drop down for instance onto a discharge conveyor.
  • the use of such an apparatus is restricted to packaging products that can be fed by gravity through a vertical filling tube.
  • the known apparatus is not suitable for forming packages enwrapped with sheetlike material or relatively large blocklike bodies delivered by means of a horizontal system such as so-called bales of fibre material.
  • the object of the invention is to provide an apparatus of the above-mentioned type in which the above discussed drawbacks are avoided.
  • a receptacle including clamping means, said receptacle being movable between a transfer position in which a packaged article may be pushed from the receptacle by means of an article pushed out of the mandrel case, a pulling through position in which an article retained in the receptacle has been moved over a distance corresponding to at least the height of one article and a sealing position in which the transverse sealing jaws may cause a seal joint to be formed between the parts of the tube of sheet material forced together.
  • sealing position and the transfer position may coincide.
  • the apparatus according to the invention is suitable in particular for integration with the device for compressing fibre material into bales as has been described in the Dutch Patent Application No. 78,09933.
  • the receptacle For moving the receptacle into the said different positions the receptacle may be connected to at least two bars the position of which may be adjusted by means of a hydraulic cylinder.
  • the knife may be fastened to a driven chain arranged between the jaws of a pair of end sealing jaws while said pair of end sealing jaws is connected to the operating mechanism in a vertically resilient condition.
  • the end sealing jaws may be made to cooperate with a mechanism for tightening the sheet material.
  • the tightening mechanism comprises two swivel bars, part of which projects beyond the mandrel case, and each one of said bars is connected to a sealing jaw by means of a transmission and may be swiveled by moving the associated sealing jaw.
  • the represented apparatus is destined for packaging blocklike bodies, in particular bales of fibre material, in a plastic sheet material or any other sealable material.
  • the apparatus includes a horizontal mandrel case 1 made of metal plate which at a right angle has been integrated with a compression chamber 2 for the compression into bales whereby the bales formed in the compression chamber may be pushed into the mandrel case by means of a hydraulic cylinder 3.
  • the compression chamber forms part of for instance a compression device such as disclosed in the Dutch Patent Application No. 78,09933.
  • the invention is not restricted to packaging bales of fibre material.
  • a roll 4 and 5 for supplying a web of sheet material.
  • the webs drawn from these rolls run in succession over a guide roller 6 and 7, respectively, and shoulders 8 and 9, respectively.
  • a web of sheet material drawn over a shoulder is folded into an U-shape. The dimensions of the shoulders have been selected such that the U-shaped webs will fittingly come in engagement with the mandrel case 1 the longitudinal edges 10, 11 of the webs assuming an overlapping condition.
  • sealing jaws 12 On both sides of the mandrel case 1 there have been arranged sealing jaws 12 by means of which the overlapping edge strips of the webs of sheet material may be sealed together. These jaws may be moved by means of hydraulic cylinders 13.
  • a receptacle 14 which is open when viewed in the longitudinal direction of the mandrel case.
  • This receptacle has been suspended from a number of inter-connected bars 1 which together form two parallellograms and which by means of a hydraulic cylinder 16 may be moved along paths of which two have been indicated in the figure in dot and dash lines.
  • end sealing jaws 17, 18 At the end of the mandrel case 1 there are provided two pairs of end sealing jaws 17, 18 above each other. They may be moved up and down between a position indicated in dot and dash lines and a position indicated in full lines by means of hydraulic cylinders 19, 21. The lower jaws have been connected to the piston rod of the cylinder 21 in a vertically resilient manner.
  • the receptacle 14 has been provided with a clamping cylinder 24 including a clamping plate by means of which a bale present in the receptacle may be clamped together.
  • the mandrel case 1 is filled with a series of bales formed in the compression chamber 2.
  • a tubing of sheet material is formed with the aid of the supply rolls 4, 5, the guide rollers 6, 7, the shoulders 8, 9 and the side sealing jaws 12.
  • the cylinder 16 Upon actuating the clamping cylinder 24 and as a consequence thereof clamping the bale with the sheet material in a fixed position within the receptacle 14, the cylinder 16 is actuated in order to impart a hinged motion to the bars 15 to a position in which the receptacle reaches the extreme right hand portion of its path (pulling through position). Due to this motion the entire tube of sheet material is pulled over a distance at least equalling the height of a bale. By means of the side sealing jaws 12 a longitudinal seal seam is caused to form. The receptacle 14 suspended from the bars 15 may then be retracted by means of the cylinder 16 to a so-called sealing position which may be located at a slight distance to the right from the transfer position.
  • the cylinders 19 and 21 are actuated so that the two pairs of end sealing jaws 17 and 18 are caused to move towards each other whereby the parts of the tubing of sheet material present between the mandrel case 1 and the receptacle 14 are pressed onto each other and are sealed together so that the transverse seal seam in the sheet material at the rear face of the bale present in the receptacle 14 and the transverse seal seam in the sheet material of the front face of the foremost bale in the mandrel case 1 are formed simultaneously. These transverse seal seams are finally separated from each other by means of the knife fastened to the chain 23.
  • the following cycle may be started by the ejection of the entirely packaged bale from the receptacle 14 onto the discharge path 22 and the supply of a further bale from the mandrel case 1 to the receptacle 14.
  • Fig. 2 on an enlarged scale there has been shown a mechanism cooperating with the end sealing jaws 17, 18 destined to tighten the plastic sheet material that for enabling the formation of a transverse package wall has been pulled forward sufficiently over the mandrel case 1 under the influence of the reciprocating motion of the receptacle 14. If such tightening is omitted one may run the risk that the sheet material will be doubled locally by the sealing jaws 17, 18 moving towards each other whereby at the locations of doubled sheet material no seal or a seal of inferior quality may be formed.
  • the tightening mechanism comprises two substantially Z-shaped bars 31, 32 hingedly fastened to the vertical front edge of the mandrel case 1 which are also hingedly connected to a turntable 33 and 34, respectively, mounted on the mandrel case. These turntables are interconnected through a hingedly arranged coupling means 35.
  • the pair of sealing jaws 17 is connected to the turntables 33 and 34 through Bowden cables 36, 37.
  • the Bowden cable 36 Upon closure of the sealing jaws 17, 18, i.e. a movement towards each other, the Bowden cable 36 will pull the turntable 33 such that it will turn in the direction of the arrow. Due to the presence of the coupling means 35 the turntable 34 will also turn in the indicated arrow-direction.
  • the Z-shaped bars 31, 32 will then be driven by the turning turntables thus causing the projecting ends to swivel outwards in the direction of the arrows and to tighten the sheet material.
  • the moving mechanism and the clamping mechanism of the receptacle 14 and the severing mechanism for severing the sheet material may have another construction.
  • the plastic sheet material may be replaced by paper coated with thermoplastic material.

Claims (6)

1. Dispositif d'emballage pour emballer des articles dans un matériau pouvant être scellé à chaud, en particulier une feuille de matière plastique, ce dispositif comprenant un boîtier de mandrin (1) pour une succession d'articles à emballer, des moyens de convoyage pour convoyer un par un les articles vers l'extrémité de sortie du boîtier de mandrin, des moyens d'alimentation (4, 5, 6, 7) en toile pour amener au moins une feuille de toile vers le boîtier de mandrin, et des moyens de pliage (8, 9) pour plier ladite toile autour du boîtier de mandrin (1), des moyens de scellement longitudinal (12) pour sceller les bords longitudinaux de la toile qui se recouvrent et pour former ainsi un tube de matériau en feuille, et des mâchoires de scellement transversales (17, 18) disposées à l'extrémité de sortie du boîtier de mandrin (1), s'étendant perpendiculairement aux moyens de scellement longitudinal (12), caractérisé en ce que près de l'extrémité de sortie du boîtier de mandrin (1) est prévu un réceptacle (14) pourvu de moyens de serrage (24), ce réceptacle étant susceptible d'être déplacé entre une position.de transfert dans laquelle un article emballé peut être poussé à l'extérieur du réceptacle (14) par un article éjecté du boîtier de mandrin (1) par poussée, une position de traction dans laquelle un article retenu à l'intérieur du réceptacle (14) a été avancé d'une distance correspondant à au moins la hauteur d'un article, et une position de scellement dans laquelle les mâchoires de scellement transversal (17, 18) peuvent provoquer la formation d'un joint de scellement entre des parties du tube de la feuille de matériau pressées ensemble.
2. Dispositif selon la revendication 1, caractérisé en ce que le réceptacle est relié à au moins deux barres (15) dont la position peut être réglée au moyen d'un vérin hydraulique (16).
3. Dispositif selon la revendication 1 ou 2, caractérisé en ce qu'il comprend deux paires de mâchoires de scellement terminales (17, 18) et en ce qu'entre les mâchoires de l'une desdites paires, est prévu un petit couteau pour couper la feuille de matériau entre les joints de scellement exécutés par les mâchoires de scellement terminales.
4. Dispositif selon la revendication 3, caractérisé en ce que le couteau est attaché à une chaîne d'entraînement (23) disposée entre les mâchoires d'une paire de mâchoires de scellement terminales (18), et en ce que ladite paire de mâchoires de scellement terminales est reliée au mécanisme de commande (21) de manière élastique verticalement.
5. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que les mâchoires de scellement terminales (17, 18) coopérant avec un mécanisme de serrage de la feuille.
6. Dispositif selon la revendication 5, caractérisé en ce que le mécanisme de serrage comprend deux barres pivotantes (31, 32) dont une partie s'étend au-delà du boîtier de mandrin (1), et chacune de ces barres est reliée à une mâchoire de scellement par un système de transmission (31, 37 inclus) et peut pivoter par déplacement de la mâchoire de scellement associée.
EP19800200075 1979-02-02 1980-01-25 Appareil d'emballage pour emballer des articles dans un matériau thermo-soudable Expired EP0014504B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7900868A NL7900868A (nl) 1979-02-02 1979-02-02 Inrichting voor het verpakken van voorwerpen in materiaal dat onder invloed van warmte gelast kan worden.
NL7900868 1979-02-02

Publications (2)

Publication Number Publication Date
EP0014504A1 EP0014504A1 (fr) 1980-08-20
EP0014504B1 true EP0014504B1 (fr) 1983-01-12

Family

ID=19832570

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800200075 Expired EP0014504B1 (fr) 1979-02-02 1980-01-25 Appareil d'emballage pour emballer des articles dans un matériau thermo-soudable

Country Status (4)

Country Link
EP (1) EP0014504B1 (fr)
DE (1) DE3061552D1 (fr)
DK (1) DK44980A (fr)
NL (1) NL7900868A (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2747346A (en) * 1951-03-13 1956-05-29 Robert A Johnston Company Method of forming packages
DE1461911A1 (de) * 1965-02-13 1969-02-13 Wilhelm Heisig Verfahren und Vorrichtung zur Herstellung von mit verschiedenen Medien gefuellten Formkoerpern aus thermoplastischen Kunststoff-Folien

Also Published As

Publication number Publication date
DK44980A (da) 1980-08-03
NL7900868A (nl) 1980-08-05
DE3061552D1 (en) 1983-02-17
EP0014504A1 (fr) 1980-08-20

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