EP1717148B1 - Procédé pour envelopper des marchandises - Google Patents

Procédé pour envelopper des marchandises Download PDF

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Publication number
EP1717148B1
EP1717148B1 EP06016802A EP06016802A EP1717148B1 EP 1717148 B1 EP1717148 B1 EP 1717148B1 EP 06016802 A EP06016802 A EP 06016802A EP 06016802 A EP06016802 A EP 06016802A EP 1717148 B1 EP1717148 B1 EP 1717148B1
Authority
EP
European Patent Office
Prior art keywords
film
section
packaged goods
over
unit load
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 - Lifetime
Application number
EP06016802A
Other languages
German (de)
English (en)
Other versions
EP1717148A1 (fr
Inventor
Reiner Hannen
Norbert Vermeulen
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.)
MSK Verpackungs Systeme GmbH
Original Assignee
MSK Verpackungs Systeme GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE20206246U external-priority patent/DE20206246U1/de
Application filed by MSK Verpackungs Systeme GmbH filed Critical MSK Verpackungs Systeme GmbH
Publication of EP1717148A1 publication Critical patent/EP1717148A1/fr
Application granted granted Critical
Publication of EP1717148B1 publication Critical patent/EP1717148B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65B9/15—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 stored on filling nozzles

Definitions

  • the invention relates to a method for wrapping piece or packaged goods with an at least approximately hood-shaped elastic film section, which is folded by shirring and stretched and then pulled over the piece or packaged, wherein the shirred film section by means of a along the piece - Stretched or packaged movable overdrawing device and is pulled over the piece or packaged goods.
  • the film section is gathered zieharonikaartig in the shirring process.
  • the folds should be oriented obliquely downwards towards the packaged item or packaged goods and pointing outwards. Only this uniform alignment of the folds ensures a later easy removal of the film section, since then fold by fold can be deducted from the overdrawing device.
  • the fold to be pulled off the adjacent fold which is to be peeled off in a next step is at least partially, if not completely, covered and thus pinched and held.
  • This circumstance can lead to damage of the film section, since by pulling out this fold high tensions in the film section occur and so holes can be pulled into the film section.
  • This risk is particularly great in film sections of small thickness, since then pull the film section easier when pulling out, or piece or packaged goods high altitude, as a greater length of film section gathered and therefore a greater number of wrinkles must be formed.
  • the object of the invention is to improve the previously known method in that during the coating process also at a non-optimal previous wrinkling damage to the film section can be prevented.
  • the shirred film section is stretched for coating over the piece or packaged goods in a first step by a first higher amount and in a second step, the stretching of the film section during the coating process of the shirred film section on the piece or packaged goods to a lesser amount, but still allows the coating is reduced, wherein the reduction of the stretch during the coating process of the film section on the piece or packaged continuously, in particular evenly, or the reduction of the stretch during the coating process of the film section over the piece - or packaged in stages, in particular multi-stage takes place.
  • the film section is first stretched in a first step by an amount that is significantly above the stretch, as has been done in previously conventional methods.
  • This stretching has been kept as low as possible on a regular basis and limited to the required for a proper implementation of the process minimum extension.
  • the film section is stretched by such a smaller amount that during coating there is an all-round distance between each side of the piece or packaged goods and the film section of 3 to 5 cm.
  • the film section is first stretched in a first step by a greater amount, so that in this more stretched Condition adjusts an all-round distance between each side of the piece or packaged goods and stretched by the greater amount foil section of about 6 to 10 cm. Stronger extensions are possible.
  • the clamping fingers By subsequently reducing the stretch of the film portion in a second step during the coating process - by moving respective components of the coating device, usually the clamping fingers - the tension in the folds of the gathered film portion is reduced, whereby the wrinkles, especially in a non-desired folding orientation, not more so strongly clamped by an adjacent fold and are held, so that the film section without damage can be easily removed during the coating process.
  • the reduction in tension may result from an at least partially delayed reset with a corresponding resulting, still beyond the minimum extent and / or at a successful default, which is less than the release occurring in the absence of all holding forces free reset, from the time offset with the one Tension is restored, resulting.
  • the higher amount of stretch is outside the tolerance range of the extension by the smaller amount and is clearly to be regarded as excessive compared to the extension by the smaller amount.
  • the measure of the smaller amount of stretch which corresponds to the minimum stretch, depends not only on the geometry of the piece or packaged goods. Other parameters, such. As the dimensions of the located within the film section system parts of the stall, have Influence on the measure of the smaller amount of stretch.
  • the reduction of the stretch to the smaller amount can be done with the first contact of the film section with the top of the piece or packaged goods or only at a later time during the coating process.
  • the complete coating process is at least for the most part completed before all recovery operations have been completed and the film section has again reached the extent afforded by the stretch to a lesser extent.
  • the overdrawing four in the plane perpendicular to the coating direction clamping fingers have, each having a substantially extending in this plane bow-shaped clamping element and an attached thereto arcuate, and pointing substantially in Studentsziehraum extending support member to the shirred film section in each of the corners of take to wrapping unit loads or packaged goods corresponding regions and then draw over the unit load and packaged goods, wherein at least on one tensioning finger a from the outside at least in the area of the unit load or packaged goods shortly before reaching the stall position atUSTesten, located over the unit load or Packaged good over fold, especially in the adjacent to this fold unfolded region of the film section, can be applied to the film section, baking-like and the corner
  • At least one fixing device can be applied again after removal of the folds shortly before removal of the film section from the access area of the fixing device for fixing the film section to this in the region of the corresponding clamping finger.
  • the fixing device By reapplying the fixing device shortly before completion of the coating process, the film section can be tightened in the coating direction and - if desired - also stretched, so that thereby high vertical degrees of stretch can be achieved.
  • the fixing devices are again removed from the film section and the coating device is preferably returned to its original position.
  • the reduction of the stretch can be done in the first third of the coating process.
  • the coating process begins with the contact of the film section with the top of the piece or packaged goods.
  • the reduction of the stretch at a distance of 5 to 20 cm from the top of the piece or packaged goods, preferably at a distance of 10 cm from the top of the piece or packaged goods, take place.
  • the film section stretched by a higher amount in the first step is fixed at the beginning of the coating process by means of at least one fixing device, and the fixing device is removed again with a reduction of the stretch in a second step to a smaller amount from the film section.
  • the film section stretched by the higher amount in the first step is first fixed.
  • the film section sets only on the top side of the piece or packaged goods, while the sides of the piece or packaged goods are not in contact with the film section.
  • the fixing device is then detached from the film section in a second step with reduction of the stretching to a smaller amount, so that then the film section can be pulled off fold by fold.
  • FIGS. 1 and 2 show a coating device 1 of a device according to the invention. Not shown is an upstream in the process sequence shirring.
  • the coating device 1 has four clamping fingers 2, which are arranged in the respective corners of a piece or packaged goods 3 partially shown.
  • Each clamping finger 2 consists of an arcuately shaped tubular clamping element 4, which is aligned in a direction perpendicular to the coating direction 5 level.
  • an approximately angularly shaped support member 6 is formed, which is fastened via a lower side cross member 7 to a support structure 8.
  • Fig. 1 how out Fig. 1 can be seen, the two ends of the clamping element 4 are connected by a strut 9 with the corresponding support member 6.
  • a mast 10 On top of the cross member 7, a mast 10 is arranged. On this mast 10, a control lever 12 is rotatably struck by a bearing 11, at whose free end via a further bearing 13, a fixing device 14 is attached. The surface of the fixing device 14 that can be brought into contact with the clamping finger 2 is attached to the outer contour of the clamping finger 2. Since the support member 6 of the clamping finger 2 is formed approximately arcuate in the illustrated embodiment, so far, the fixing device 14 has a corresponding arcuate training. But it is also quite possible that the clamping finger 2 is provided at the level of the clamping element 4.
  • a cylinder 15 which is shown in dashed lines in the figures. This may be, for example, a pneumatic or hydraulic cylinder.
  • the clamping fingers 2 and thus also attached to the cross member 7 fixing device 14 along the longitudinal edges of the piece or packaged goods 3 (arrows 16, 17) are movable.
  • the support structure 8 is connected via guides 18 with a guide rail 19.
  • the traverse 7 attacking chains 20, 21 the clamping fingers 2 can be moved in the direction of the arrow 17.
  • the guide rail 19 is arranged on the upper side of a holding element 22, that the overdrawing device 1 in the direction of arrow 16 is movable.
  • the exact construction for enabling the travel in the direction of the arrow 16 is not shown for reasons of clarity.
  • each covering device 1 can be moved in the direction of the arrow 23 along the piece or packaged goods 3, a hydraulic cylinder 24 is provided in the exemplary embodiment shown, which acts on the retaining element 22 on the underside. But there are also other constructions to achieve a mobility in the direction of arrow 23 is possible.
  • the four clamping fingers 2 engage in a downwardly opened film section 25.
  • the film section 25 is already placed by gathering on the clamping fingers 2 in folds 26.
  • the shirring itself is done in a separate shirring not shown.
  • the film section 25 was taken over by the shirring device in the shirred state of the illustrated overdrawing device 1.
  • each fixing device 14 After taking over the shirred film section 25, each fixing device 14 is pivoted in the direction of the arrow 27 in the direction of the respective clamping finger 2, so that the film section 25 between the support member 6 of the clamping finger 2 and the corresponding fixing device 14 is fixed by clamping.
  • the area of the fixing device 14 which can be brought into contact with the film section 25 has a soft coating 28, such as, for example, B. sponge rubber, on. But there are also other coatings conceivable.
  • the clamping fingers 2 After applying the fixing device 14, the clamping fingers 2 to the outside, for example, diagonally outwardly in the direction of the arrow 29 moves apart, so that the film portion 25 is stretched. Due to the clamping fixation of the film portion 25 in the head area, d. H. In this case, the closed trained end to be optimally stretched.
  • the overdrawing device 1 After stretching, the overdrawing device 1 is moved in the overdrawing direction 5 along the piece or packaged goods 3. Once the head portion of the film section 25 rests on the top of the piece or packaged goods 3, the fixing devices 14 in the in Fig. 2 retracted dashed position shown. Upon further lowering of the overdrawing device 1, the folds 26 are increasingly withdrawn from the clamping fingers 2, so that when the overdrawing device 1 reaches its extreme lower position, the entire film section 25 has no more folds 26 and the piece or packaged goods 3 surrounds.
  • the fixing devices 14 For the final tightening of the film portion 25 in the direction of coating 5 and possibly for stretching in coating direction 5, the fixing devices 14, shortly before the Film section 25 has been completely deducted from the clamping fingers 2, again in the in Fig. 2 moved position shown by solid lines, so that the film portion 25 is again fixed between the fixing devices 14 and the corresponding clamping fingers 2 by clamping.
  • the film section 25 can be optimally tightened and stretched in the direction of coating 5.
  • the shirred film section 25 is coated over the piece goods or packaged goods 3 in a first step by one stretched first higher amount and in a second step, the stretching of the film portion 25 during the coating process of the shirred film section 25 on the piece or packaged goods 3 to a lesser amount, but still allows the coating is reduced.
  • Hierduch the film portion 25 is first stretched in the first step by a greater amount, so that in this more stretched state, an all-round distance between each side of the piece or packaged goods. 3 and adjusts the film portion 25 stretched by the greater amount of about 6 to 10 cm. Stronger extensions are possible.
  • the tension in the folds 26 of the gathered film section 25 is reduced by moving the clamping fingers 2 along the edges of the piece or packaged goods 3 (arrows 16, 17) the folds 26 are no longer so strongly clamped and held by an adjacent fold 26, so that the film portion 25 can be easily removed without damage during the coating process.
  • the reduction of the stretch can be carried out continuously or stepwise, in particular multi-stage.
  • one and the same component e.g. As a geared motor can be used, which is driven accordingly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Container Filling Or Packaging Operations (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Packages (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Claims (7)

  1. Dispositif d'enveloppement de marchandises isolées ou de colis (3), présentant un tronçon de feuille élastique (25) au moins sensiblement en forme de coiffe ramassé en des plis (26), par fronçage, puis étiré et tendu au-dessus des marchandises isolées ou des colis (3), ledit tronçon de feuille plissé (25) étant étiré au moyen d'un système (1) de déploiement sus-jacent mobile le long des marchandises isolées ou des colis (3), et déployé au-dessus desdites marchandises isolées ou desdits colis (3), caractérisé en ce que le tronçon de feuille plissé (25) destiné à être déployé au-dessus des marchandises isolées ou des colis (3) est, au cours d'une première étape, étiré de façon relativement importante et, dans une seconde étape, cet étirement du tronçon de feuille plissé (25) durant le processus de déploiement du tronçon de feuille plissé (25) au-dessus des marchandises isolées ou des colis (3), est moindre, mais permet tout de même toujours de recouvrir ces derniers, la diminution de l'étirement durant le processus de déploiement du tronçon de feuille plissé (25) au-dessus des marchandises isolées ou des colis (3) s'effectue de façon continue, notamment régulière.
  2. Dispositif d'enveloppement de marchandises isolées ou de colis (3), présentant un tronçon de feuille élastique (25) au moins sensiblement en forme de coiffe ramassé en des plis (26), par fronçage, puis étiré et tendu au-dessus des marchandises isolées ou des colis (3), ledit tronçon de feuille plissé (25) étant étiré au moyen d'un système (1) de déploiement sus-jacent mobile le long des marchandises isolées ou des colis (3), et déployé au-dessus desdites marchandises isolées ou desdits colis (3), caractérisé en ce que le tronçon de feuille plissé (25) destiné à être déployé au-dessus des marchandises isolées ou des colis (3) est, au cours d'une première étape, étiré de façon relativement importante et, dans une seconde étape, cet étirement du tronçon de feuille plissé (25) durant le processus de déploiement du tronçon de feuille plissé (25) au-dessus des marchandises isolées ou des colis (3), est moindre, mais permet tout de même toujours de recouvrir ces derniers, la diminution de l'étirement durant le processus de déploiement du tronçon de feuille plissé (25) au-dessus des marchandises isolées ou des colis (3) s'effectue de façon graduelle, notamment en plusieurs étapes.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que le système (1) de déploiement sus-jacent comprend quatre doigts tendeurs (2) qui sont mobiles dans le plan perpendiculaire à la direction (5) de déploiement sus-jacent et comportent, respectivement, un élément de tension (4) en forme d'étrier, s'étendant pour l'essentiel dans ce plan, et un élément d'appui (6) en forme de cintre fixé à l'élément précité et s'étendant pour l'essentiel avec orientation dans la direction (5) de déploiement sus-jacent, de manière à recevoir le tronçon de feuille plissé (25) dans les régions correspondant respectivement aux coins des marchandises isolées ou des colis (3) devant être enveloppé(e)s, et à le déployer ensuite au-dessus desdites marchandises isolées et desdits colis (3), et en ce qu'un système (14) de verrouillage à demeure du type mâchoire, situé sur au moins un doigt tendeur (2), ceinturant au moins partiellement la zone d'angle dudit doigt tendeur (2) et pouvant être appliqué de l'extérieur contre ledit tronçon de feuille (25), au moins dans la région du pli (26a) devant être rabattu sur les marchandises isolées ou les colis (3) et le plus éloigné desdites marchandises isolées ou desdits colis (3) peu avant que la position de déploiement sus-jacent soit atteinte, et notamment dans la région non pliée dudit tronçon de feuille (25) adjacente à ce pli (26a), est prévu pour le verrouillage par coincement, au stade de l'étirage, de la région correspondante du tronçon de feuille (25) sur les doigts tendeurs, sachant qu'au moins un système (14) de verrouillage est appliqué, dans la zone du doigt tendeur (2) correspondant, contre le tronçon de feuille (25) avant d'étirer ledit tronçon de feuille (25), afin de l'immobiliser, et est retiré du tronçon de feuille (25) après que le tronçon de feuille élastique (25) approximativement en forme de coiffe est en contact avec les marchandises isolées ou les colis (3).
  4. Procédé selon la revendication 3, caractérisé en ce que, peu avant l'éloignement du tronçon de feuille (25) de la zone d'intervention du système (14) de verrouillage à demeure, au moins un système (14) de verrouillage à demeure est de nouveau appliqué contre ledit tronçon de feuille (25) dans la région du doigt tendeur (2) correspondant, après levée des plis (26), en vue de la consignation à demeure dudit tronçon de feuille.
  5. Procédé selon la revendication 2, 3 ou 4, dans la mesure où la revendication 3 ou 4 se réfère à la revendication 2, caractérisé en ce que l'étirement se réduit au cours du premier tiers du processus de déploiement sus-jacent.
  6. Procédé selon la revendication 5, caractérisé en ce que l'étirement est réduit à une distance comprise entre 5 et 20 cm du dessus des marchandises isolées ou des colis (3), de préférence à une distance de 10 cm du dessus des marchandises isolées ou des colis (3).
  7. Procédé selon l'une des revendications 1 à 6, caractérisé en ce que le tronçon de feuille (25) qui est davantage étiré au cours de la première étape est immobilisé au moyen d'au moins un dispositif (14) de verrouillage à demeure au début du processus de déploiement sus-jacent, et en ce que le dispositif (14) de verrouillage à demeure est de nouveau retiré du tronçon de feuille (25) lorsque l'étirement diminue au cours d'une seconde étape.
EP06016802A 2002-04-19 2003-04-17 Procédé pour envelopper des marchandises Expired - Lifetime EP1717148B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20206245 2002-04-19
DE20206246U DE20206246U1 (de) 2002-04-19 2002-04-19 Vorrichtung zum Umhüllen von Stück- oder Packgut
EP03727324A EP1497176B9 (fr) 2002-04-19 2003-04-17 Dispositif et procede d'emballage d'articles unitaires ou de lots

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP03727324A Division EP1497176B9 (fr) 2002-04-19 2003-04-17 Dispositif et procede d'emballage d'articles unitaires ou de lots

Publications (2)

Publication Number Publication Date
EP1717148A1 EP1717148A1 (fr) 2006-11-02
EP1717148B1 true EP1717148B1 (fr) 2008-04-09

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP03727324A Expired - Lifetime EP1497176B9 (fr) 2002-04-19 2003-04-17 Dispositif et procede d'emballage d'articles unitaires ou de lots
EP06016802A Expired - Lifetime EP1717148B1 (fr) 2002-04-19 2003-04-17 Procédé pour envelopper des marchandises

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP03727324A Expired - Lifetime EP1497176B9 (fr) 2002-04-19 2003-04-17 Dispositif et procede d'emballage d'articles unitaires ou de lots

Country Status (10)

Country Link
US (2) US7234289B2 (fr)
EP (2) EP1497176B9 (fr)
CN (1) CN1325331C (fr)
AT (2) ATE372260T1 (fr)
AU (1) AU2003233990A1 (fr)
DE (2) DE50308120D1 (fr)
DK (2) DK1497176T3 (fr)
MX (1) MXPA04010192A (fr)
PL (1) PL209348B1 (fr)
WO (1) WO2003089303A1 (fr)

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ES2194656T3 (es) * 2000-08-09 2003-12-01 Lachenmeier As Procedimiento y aparato para empaquetar objetos.
DE20101909U1 (de) * 2001-01-25 2002-06-13 MSK-Verpackungs-Systeme GmbH, 47533 Kleve Vorrichtung zum Umhüllen eines Gutstapels
CA2340838A1 (fr) * 2001-03-15 2002-09-15 Gerard Pin Appareil d'ensachage de produit
US6598379B2 (en) * 2001-09-07 2003-07-29 Illinois Tool Works Inc. Multi-tab folder for ring type stretch film wrapping machine, and a method of operating the same

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AU2003233990A1 (en) 2003-11-03
EP1497176B1 (fr) 2007-09-05
EP1717148A1 (fr) 2006-11-02
PL371326A1 (en) 2005-06-13
DE50309606D1 (de) 2008-05-21
PL209348B1 (pl) 2011-08-31
DK1497176T3 (da) 2008-03-25
ATE391673T1 (de) 2008-04-15
MXPA04010192A (es) 2005-03-07
DK1717148T3 (da) 2008-08-04
US7234289B2 (en) 2007-06-26
ATE372260T1 (de) 2007-09-15
EP1497176B9 (fr) 2008-01-09
EP1497176A1 (fr) 2005-01-19
CN1655987A (zh) 2005-08-17
WO2003089303A1 (fr) 2003-10-30
CN1325331C (zh) 2007-07-11
US20050115206A1 (en) 2005-06-02
DE50308120D1 (de) 2007-10-18
US20070151211A1 (en) 2007-07-05

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