EP0858411B1 - Procede et dispositif de fabrication d'emballages sous vide contenant un produit en vrac, notamment du cafe moulu - Google Patents

Procede et dispositif de fabrication d'emballages sous vide contenant un produit en vrac, notamment du cafe moulu Download PDF

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Publication number
EP0858411B1
EP0858411B1 EP96932422A EP96932422A EP0858411B1 EP 0858411 B1 EP0858411 B1 EP 0858411B1 EP 96932422 A EP96932422 A EP 96932422A EP 96932422 A EP96932422 A EP 96932422A EP 0858411 B1 EP0858411 B1 EP 0858411B1
Authority
EP
European Patent Office
Prior art keywords
conveyor
case
packs
wall
hood
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
EP96932422A
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German (de)
English (en)
Other versions
EP0858411A1 (fr
Inventor
Benno Himmelsbach
Siegfried Meier
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.)
Syntegon Packaging Systems AG
Original Assignee
SIG Pack Systems AG
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Filing date
Publication date
Application filed by SIG Pack Systems AG filed Critical SIG Pack Systems AG
Publication of EP0858411A1 publication Critical patent/EP0858411A1/fr
Application granted granted Critical
Publication of EP0858411B1 publication Critical patent/EP0858411B1/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
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
    • B65B31/022—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas the chambers moving in an endless path

Definitions

  • U.S. Patent 4,538,399 discloses a method and an apparatus for producing evacuated packs containing ground Coffee described.
  • the still unsealed packs are on a conveyor belt in holders in regular Intervals delivered.
  • the Packs in pairs using pestles on a turntable pushed, which contains vacuum hoods.
  • the turntable has for each pack two side walls, one of which is pivotable. Facing the axis of the turntable a third side wall designed as a plunger.
  • a fourth side wall is on a wall of the lowered Hood. During the evacuation this pestle becomes pressed against the fourth side wall so that the pack is simultaneously compressed during evacuation. With this device can thus be cuboid packs flat side surfaces are produced.
  • the completed ones Packs are pushed back onto the conveyor belt. Both the conveyor belt and transfer means and the turntable move in cycles.
  • the present invention is based on the object To increase the performance of such a device. This task is by the combination of features of claims 1 and 4 solved.
  • the second and fourth conveyors are each as Intermediate conveyor, which the packs of a take over the first, preferably linear, conveyor or hand them over to him. Because the packs have one each Transfer intermediate conveyor to the third conveyor and back this intermediate conveyor can be at the transfer points each have the same direction of movement as the first and third conveyors, which is described in the introduction Device according to US Pat. No. 4,538,399 is not possible. This enables the handover to be continuous ongoing sponsors can take place. Therefore, higher ones Packaging services with careful handling of the Packs can be achieved.
  • the second and fourth sponsors do not necessarily need to be designed as an intermediate conveyor.
  • a separate feed conveyor can also be state of the art and discharge conveyor e.g. on diametrically opposite Positions of the third conveyor can be provided. Also at this variant is a continuous rather than an intermittent one Operation possible.
  • FIG. 1 shows a package 1 made of a flexible film 2 shown in the open state. It has one on one Side surface 3 flattened longitudinal fin seam 4 and one Floor 5, which is analogous to the representation of Figures 2 and 3 folded and cross-sealed.
  • the pack is by Level 6 shown in broken lines with bulk material, e.g. ground Coffee, filled.
  • This pack is in the following described device at the upper edge with gusset folds 7 provided ( Figure 2), evacuated and finally sealed with a transverse sealing seam 8 ( Figure 3).
  • transfer points are schematically between one Feed and discharge conveyor 12, a second conveyor 13, one third conveyor 14 and a fourth conveyor 15 shown.
  • the conveyor 12 has receiving pockets at regular intervals 16 with parallel, transverse to the transport direction A extending side walls 17 for receiving one pack each 1. It can, for example, as a chain conveyor or as Conveyor belt to be formed.
  • the intermediate conveyors 13, 15 have the same structure. They have one vertical Axis 21, 22 driven turntable 23, 24. On this holding elements 25, 26 are evenly distributed over the circumference, which consists of two vertically standing angle plates 27, 28 exist. Each sheet 27, 28 is attached to an arm 29, 30. For the sake of clarity, these arms are 29, 30 and their actuation only in one of the holding elements 25 the conveyor 13 shown.
  • the arms 29, 30 are one common, vertical axis 31 independently swiveling and offset in the axial direction. she form two arms with two other arms 32, 33 Lever. The two arms 32, 33 carry on their free Ends rollers 34, 35. The rollers 34, 35 roll on separate, vertically offset cams 36, 37.
  • the arms 29, 30 are by a prestressed tension spring 38 strained against each other.
  • the cams 36, 37 are formed such that the side walls of the sheets 27, 28 at transfer point 39 from conveyor 12 to conveyor 13 aligned parallel to the side walls 17 of the pockets 16 move on this. When approaching the transfer point 39, the side walls 27 have a slightly larger one Distance than the side walls 17.
  • the peripheral speed the axes 31 is approximately equal to the transport speed the sponsor 12.
  • a plunger 44 e.g. by means of a pneumatic cylinder 45 vertically can be advanced to the transport direction A to a product 1 from a pocket 16 into an aligned one Slide retaining element 25.
  • the cylinder 45 is e.g. by means of a chain 46 rotating over two wheels and one parallel guide, not shown, in the transport direction moved back and forth in such a way that he passed the Pack 1 runs synchronously with the conveyor 12.
  • a stationary, horizontal sliding plate 47 supports the Packs 1 in the area of the conveyor 12 to 15 and the transfer points 39, 51, 55, 56 so that they certainly don't follow slide down.
  • the transfer of the finished packs 1 from the conveyor 15 to Conveyor 12 also takes place analogously by means of a pestle 48 with a periodically moving cylinder 49 and Slide plate 47 at the transfer point 51.
  • Transfer point 55 from conveyor 13 to conveyor 14 is shown in Figures 5 and 6.
  • the transfer point 56 from conveyor 14 to conveyor 15 functions analogously.
  • the conveyor 14 also comprises a turntable 57, which is continuous about a vertical axis 58 (FIG. 10) turns.
  • On the Plates 57 are on the circumference at regular intervals distributed rear walls 60 mounted, and around vertical axes 61 swiveling side walls 62 divided in height.
  • the upper part 63 can be pivoted separately from the lower part 64.
  • the parts 63, 64 are made up of a total of four cams 65, 66, 67, 68 via lever 70 and rollers 71 such controlled that immediately in front of the transfer point 55 all Parts 63, 64 are spread, approximately when passing through Middle level of pack 1 through the common level of Axes 21, 58 of the turntables 23, 57 the upper parts 63 pressed against one another by the force of springs 69 (FIG. 9) so that they hold packs 1. Thereon open the plates 27, which below the parts 63 run through. As soon as the holding elements 25 out of the area the packs 1 have turned away, also close the lower parts 64 of the side walls 62. Now the side walls 62 pressed against the pack 1 by the springs 69. Between the upper and lower parts 63, 64 is only a small gap of less than two millimeters, preferably less than 1% of the height of the side walls 62 intended. The gap between the parts 63, 64 is above half the height of the side walls 62.
  • the cam 74 is in the height adjustable by a cylinder 75.
  • the cylinder 75 is operated by a control device 76 Sensor 77 controlled, which level 6 of the bulk material in pack 1 measures.
  • the bulk height of the bulk material can namely despite the same bulk weight depending on the degree of grinding of the lot just processed vary.
  • the sliding plate 47 is shown rotated by 90 ° in FIG. 6. In reality it runs in front of the lowered base plate 73.
  • Vacuum hood 81 ( Figures 7 to 9) over the package 1 shutdown.
  • Each vacuum hood 81 is by means of a Rod 82 ( Figure 10) on table 57 guided vertically.
  • the rods 82 have a roller 83 at the bottom, which on a cam 84 rolls. This turns the hoods 81 raised before reaching the transfer point 56 and after Passage through point 55 lowered. In the lowered A sealing ring 85 seals the interior of the position Remove hood 81 by resting on table 57.
  • the hood 81 has a wedge 87 on each of its two side walls 86 Inner surfaces 88 of the two wedges 87 diverge towards the bottom.
  • a front wall 96 of the package holder 97 of the table 57 is by means of a parallelogram linkage 95 a front wall 96 of the package holder 97 of the table 57 attached.
  • the hood 81 In the raised position the hood 81 (in FIG. 7 at the top right corner dash-dotted lines) is the wall 96 of the wall 60 swung away.
  • the hood 81 When the hood 81 is lowered, one runs on the Wall 96 rotatably mounted roller 98 on a plate 99 and pivots the wall 96 from the basic position into one Stop position.
  • the walls 60, 96 each have a plate-shaped support 105, on which a membrane 106 is attached. Every membrane 106 carries a plunger 107, on which a rectangular Plate 108 is attached. The length and width dimensions of plates 108 are slightly larger than those of Pack 1.
  • the side walls 62 are in fixed their end position and hold the pack 1 in position.
  • the bottom plate 73 is controlled by the control device 76 raised to the required position.
  • the interior 111 of the hood 81 is evacuated, being in a first phase the spaces 112 between membrane 106 and Carrier 105 can be connected to the same vacuum. Subsequently these opposite rooms 112 are also Compressed air applied. So that the pack 1 in one pressed horizontally so that their other Side surfaces and the bottom 5 and the top surface against the fixed side walls 62, the bottom plate 73 as well as a cover plate 113 only indicated.
  • the Cover plate 113 is in two parts and part of the, not shown, conventional folding device for manufacturing the gusset folds 7. Towards the end of the pressing process Cross sealing jaws 114 formed the transverse sealing seam 8. This Sealing jaws 114 are also only hinted at because of their Functionality is known in the field.
  • the interior 111 is again with the Atmosphere connected and the hood 81 by means of the cam 84 raised before the relevant pack 1 the Transfer point 56 reached.
  • the training described enables the Packs 1 for continuously running conveyors 12 to 15 evacuated to a cuboid package with flat side surfaces can be pressed and sealed. It will a high packaging speed with gentle handling and thus avoid injury to the packaging film reached.
  • FIG. 10 is a vertical section through the conveyor 14 shown schematically.
  • the turntable 57 is on a cylindrical Stand 118 rotatably mounted. For example, he is driven by a motor 119 via bevel gears 120, 121.
  • Two lines 122, 123 are guided in the stand 118.
  • the line 122 is connected to a compressed air source 124 which Line 123 connected to a suction pump 125. Mouth at the top the lines 122, 123 each in an annular groove 127, 128 in a hub 126 of the turntable 57.
  • Each hood 81 is assigned a control unit 131, which via taps 133 through slip rings 132 with current is supplied.
  • Each control unit 131 is two switches 134, 135 and two valves 136, 137 assigned.
  • the switches 134, 135 are actuated by cams 138, which are rigidly connected to the stand 118.
  • the valves 136, 137 are via a line 139 with the groove 127 and thus connected to the suction pump 125, the valve 136 additionally via a line 140 to the compressed air source 124.
  • the valve 137 adjusts the negative pressure within the hood 81 lowering them and filling them with atmospheric air lifting.
  • the valve 136 connects the rooms behind the Membranes 106 first with the suction pump 125 until the bottom plate 73 is raised to the final height. Subsequently the rooms are connected to the compressed air source 124. In order to the packs 1 in the radial direction of the turntable 57 compressed by the flat plates 108.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Claims (14)

  1. Procédé de fabrication d'emballages sous vide (1) contenant un produit en vrac, notamment du café moulu, dans lequel les emballages (1) sont transférés d'un premier convoyeur (12) à un deuxième convoyeur (13) et de celui-ci à un troisième convoyeur (14), qui contient plusieurs cloches à vide (81) entraínées conjointement, les emballages (1) étant transférés après leur mise sous vide et leur métallisation au vide à un quatrième convoyeur (15) et de celui-ci de retour au premier convoyeur (12), et dans lequel, après le transfert des emballages (1) du deuxième convoyeur (13) au troisième convoyeur (14), une première paire de parois latérales (62) pour retenir les emballages (1) est amenée dans sa position extrême fermée, une deuxième paire de parois latérales (108) est amenée d'une position de base dans une position intermédiaire avec un écart horizontal réduit et dans une deuxième étape, lorsqu'une dépression règne dans la cloche à vide (81), la deuxième paire de parois latérales (108) est amenée dans sa position de pression.
  2. Procédé selon la revendication 1, dans lequel une plaque de fond (73) supportant le fond (5) de l'emballage est soulevée dans une position extrême supérieure avant le début de la deuxième étape.
  3. Procédé selon la revendication 1 ou 2, dans lequel les deux parois de la deuxième paire de parois latérales (108) sont déplacées dans la position de pression par un organe (106) respectif activable par un milieu de pression.
  4. Installation pour réaliser le procédé selon l'une quelconque des revendications 1 à 3 pour la fabrication d'emballages sous vide (1) contenant un produit en vrac, notamment du café moulu, comprenant un premier convoyeur (12) pour amener les emballages (1) non fermés par le biais d'un deuxième convoyeur (13) sur un troisième convoyeur (14), qui présente plusieurs cloches à vides (81) entraínées conjointement, ainsi qu'un quatrième convoyeur (15) pour recevoir les emballages fermés (1) du troisième convoyeur (14) et pour transporter ces emballages (1) sur le premier convoyeur (12), le troisième convoyeur (14) ayant des première et deuxième paires de parois latérales (62, 108) associées à chaque cloche (81), la première paire de parois latérales (62) étant déplaçable par un premier moyen d'entraínement (65-69, 87) d'une position de base ouverte dans sa position extrême, et la deuxième paire de parois latérales (108) étant déplaçable par un deuxième moyen d'entraínement (95, 98, 99) d'une position de base dans une position intermédiaire à un écart horizontal réduit et par un troisième moyen d'entraínement (106) dans sa position de pression.
  5. Dispositif selon la revendication 4, dans lequel le deuxième et le quatrième convoyeurs (13, 15) sont rotatifs chacun autour d'un axe vertical (21, 22) et présentent plusieurs éléments de retenue (25, 26) pour recevoir les emballages (1).
  6. Dispositif selon la revendication 5, dans lequel les éléments de retenue (25, 26) au niveau de la position de transfert (39, 51) sont déplaçables depuis ou vers le premier convoyeur (12) en alignement quasi parallèle aux organes de retenue (16) sur le premier convoyeur (12), et dans lequel ils sont formés de telle sorte qu'il s'ouvrent au niveau des positions de transfert (55, 56) vers ou depuis le troisième convoyeur (14).
  7. Dispositif selon l'une quelconque des revendications 4 à 6, dans lequel le deuxième moyen d'entraínement comprend deux leviers parallèles (95), dont une extrémité est articulée à la cloche (81) et l'autre extrémité est articulée à un élément de retenue de paroi latérale (105).
  8. Dispositif selon l'une quelconque des revendications 4 à 7, dans lequel le troisième moyen d'entraínement comprend à chaque fois une membrane (106) pouvant être sollicitée par un milieu de pression.
  9. Dispositif selon l'une quelconque des revendications 4 à 8, dans lequel les parois latérales de la première paire de parois latérales (62) peuvent pivoter autour d'axes (61) et le premier moyen d'entraínement (65 à 69, 87) comprend des ressorts (69) et des cames (65 à 68) pour le basculement de ces parois latérales (62).
  10. Dispositif selon la revendication 9, dans lequel le premier moyen d'entraínement comprend en outre des galets (89) qui roulent lors de l'abaissement de la cloche (81) sur des cales (87) au niveau des parois latérales (86) de la cloche (81).
  11. Dispositif selon l'une quelconque des revendications 4 à 10, dans lequel le troisième convoyeur (14) présente des moyens de retenue (63) pour retenir les emballages (1) lors du transfert depuis le deuxième convoyeur (13).
  12. Dispositif selon la revendication 11, dans lequel les parois latérales (62) de la première paire de parois latérales sont divisées en deux en hauteur et la partie supérieure (63) de ces parois latérales (62) peut pivoter indépendamment de la paroi inférieure (64) dans la position extrême.
  13. Dispositif selon la revendication 12, dans lequel la position de séparation entre la partie inférieure et la partie supérieure des parois latérales (63, 64) est disposée au-dessus de la moitié de la hauteur des paires de parois latérales (62).
  14. Dispositif selon la revendication 12 ou 13, dans lequel la fente entre la partie supérieure et la partie inférieure des parois latérales (63, 64) est inférieure à 1% de la hauteur de la première paire de parois latérales (62).
EP96932422A 1995-10-30 1996-10-15 Procede et dispositif de fabrication d'emballages sous vide contenant un produit en vrac, notamment du cafe moulu Expired - Lifetime EP0858411B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH306495 1995-10-30
CH3064/95 1995-10-30
CH306495 1995-10-30
PCT/CH1996/000361 WO1997016347A1 (fr) 1995-10-30 1996-10-15 Procede et dispositif de fabrication d'emballages sous vide contenant un produit en vrac, notamment du cafe moulu

Publications (2)

Publication Number Publication Date
EP0858411A1 EP0858411A1 (fr) 1998-08-19
EP0858411B1 true EP0858411B1 (fr) 2000-01-05

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Application Number Title Priority Date Filing Date
EP96932422A Expired - Lifetime EP0858411B1 (fr) 1995-10-30 1996-10-15 Procede et dispositif de fabrication d'emballages sous vide contenant un produit en vrac, notamment du cafe moulu

Country Status (4)

Country Link
EP (1) EP0858411B1 (fr)
AU (1) AU7124096A (fr)
DE (1) DE59604132D1 (fr)
WO (1) WO1997016347A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19827059B4 (de) * 1998-06-18 2009-07-09 Robert Bosch Gmbh Vorrichtung zum Füllen, Evakuieren und Verschließen von Verpackungsbehältern
TW483819B (en) 1999-04-15 2002-04-21 Sulzer Chemtech Ag Method and plant for shaping strip-like films
EP1044787B1 (fr) * 1999-04-15 2003-03-05 Sulzer Chemtech AG Procédé pour la fabrication des bandes en accordéon
US6499274B1 (en) 2000-06-20 2002-12-31 Cryovac, Inc. Method for high speed loading, vacuumizing and sealing of a bagged article
DE10118389A1 (de) * 2001-04-12 2002-10-17 Rovema Gmbh Vorrichtung zum Verschweißen befüllter Beutel, welche ein Vakuum aufweisen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3340668A (en) * 1964-09-28 1967-09-12 American Can Co Apparatus for and method of hermetically sealing a package
NL9101862A (nl) * 1991-11-07 1993-06-01 Sara Lee De Nv Werkwijze en inrichting voor het vervaardigen van een gevuld en gesloten vacuuempak.

Also Published As

Publication number Publication date
AU7124096A (en) 1997-05-22
DE59604132D1 (de) 2000-02-10
EP0858411A1 (fr) 1998-08-19
WO1997016347A1 (fr) 1997-05-09

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