EP0903296B1 - Dispositif pour séparer des sacs - Google Patents

Dispositif pour séparer des sacs Download PDF

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Publication number
EP0903296B1
EP0903296B1 EP98117337A EP98117337A EP0903296B1 EP 0903296 B1 EP0903296 B1 EP 0903296B1 EP 98117337 A EP98117337 A EP 98117337A EP 98117337 A EP98117337 A EP 98117337A EP 0903296 B1 EP0903296 B1 EP 0903296B1
Authority
EP
European Patent Office
Prior art keywords
bag
sack
suction means
grid
rolling
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
EP98117337A
Other languages
German (de)
English (en)
Other versions
EP0903296A1 (fr
Inventor
Werner Schlösser
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.)
CHRONOS HOLDING LTD
Original Assignee
Chronos Holding Ltd
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 Chronos Holding Ltd filed Critical Chronos Holding Ltd
Publication of EP0903296A1 publication Critical patent/EP0903296A1/fr
Application granted granted Critical
Publication of EP0903296B1 publication Critical patent/EP0903296B1/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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
    • B65B43/30—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by grippers engaging opposed walls, e.g. suction-operated
    • 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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
    • B65B43/14—Feeding individual bags or carton blanks from piles or magazines
    • B65B43/16—Feeding individual bags or carton blanks from piles or magazines by grippers
    • B65B43/18—Feeding individual bags or carton blanks from piles or magazines by grippers by suction-operated grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/191—Bags, sachets and pouches or the like

Definitions

  • the invention relates to a device for separating flat sacks lying in a stack, with a sack magazine in which a stack of sacks lies above with the sack magazine in arranged near the bag openings upper suction means and a drivable rolling grille forming an endless loop, consisting of at least two chains and between the chains transverse bars, the at least one engagement section for a passage of the upper suction means and at least forms a support section for resting a sack, the rolling grille enclosing the sack magazine.
  • EP 0 380 905 A1 describes a device of the type mentioned at the beginning Known at the top suction means in the area of Bag bottom are provided and after lifting a bag Rolling grille from the bottom part towards the bag opening drives in. Using the rolling grille, the sack is then turned into a Move the bag opening unit by about one bag length. Installation space for a marking device seems to be present here; the Handling the isolated sack until it is put on one Filling spout is however complicated and requires a complex one Contraption.
  • the invention is based on the object Device for separating bags that are simple is built and works reliably and at complementary means of signing individual sacks unhindered can be added.
  • a sack with the upper suction means in the area of its bag opening by a the engaging portions of the rolling grille are raised therethrough and through the upper and lower suction means on both sides be caught and held securely.
  • Essential for this is the possibility of movement of the lower suction means between the isolated sack and the stack of sacks.
  • the swivel lower suction means in the path previously from the upper Suction devices for gripping and lifting a sack in the area has been passed through twice during its opening. For later When opening the isolated sack, the top and the lower suction means with their suction openings with an intermediate one Sack opposite.
  • the sack If the sack is opened sufficiently, it can be placed on the sack support lying open sack with suitable spreading and attachments spread out and attached to a filler neck become.
  • Suitable suction and gripper means which also essentially can be used here are in the 196 50 653.0-27 described. Suitable means for spreading and attaching the occasional sacks on a sack filler neck are in the 196 04 718.8-27. To the extent permitted, the content of this Applications referenced, their disclosure content here should be included.
  • the resulting length of the rolling grille is preferably two to three contact areas, each with intervening engagement areas provided on the rolling grille.
  • the sack After attaching an isolated sack, the sack remains unchanged Position of the rolling grille with a next sack the upper suction means at its opening end and through the engagement section located under the upper suction means pulled through. Then the lower suction means moved against the top. Then the rolling grille moved by one position, again with a support section between the sack to be separated and the sack stack pushes until the entire sack on the at least one support section of the rolling grille.
  • the rolling grille in Area of the suction means forms an inclined ramp to which a horizontal support plane in the running direction of the rolling grille connects.
  • the degree of lifting necessary of the opening end of the sack to be separated be, since this is from the inside of the the loop formed loop comes out before it over the level of the contact surface is raised.
  • the roller grille can move to be placed between those picked up at the opening end and sack held in from both sides and the stack of sacks retracted to become.
  • Both the upper and lower suction cups medium lead their movements through one in the oblique area Ramp lying engagement section of the rolling grille through out; the rolling grille can only be set in motion, when the upper and lower engagement means in an upper Position are.
  • the loop formed by the rolling grille essentially modified rectangle by the inclined ramp.
  • the rolling grille can be closely adapted to the sack magazine, without significantly increasing the size of the device.
  • the length of the at least one Engagement section corresponds at least to the length of the ramp and that the length of the at least one support section of the rolling grille at least the length of the guide rails Support level corresponds.
  • the rolling grille preferably comprises three engagement sections and three support sections.
  • the preferred configuration of the upper suction means is that these are movable in a vertical guide and in the area retractable ramp into the loop of the rolling grille are. By designing the movement of the top Suction means can the engagement sections in the rolling grille relative be kept small.
  • the lower suction means that these are partially below the sloping ramp are arranged and by the at least one engagement section of the rolling grille through to just above the inclined ramp can be moved.
  • the lower suction means are used to securely hold the sack when moving the Rolling grille when separating to open the already separated Sacks needed.
  • the arrangement is convenient to the Location of the engagement section of the rolling grille in the area of adjusted sloping ramp.
  • the lower suction means are preferably pivoted about a horizontal axis.
  • the upper and lower suction means can separate the sack open symmetrically to its median plane. Sacks of different Length and width can be handled without any adjustment measures become.
  • Figure 1 is in a machine frame shown only in dashed lines 11 shows a sack magazine 12 in which a stack of sacks lying horizontally on top of each other with the sack opening behind can be inserted facing left.
  • a column structure 13 is shown in which various handling devices for the bags are stored.
  • the sack magazine 12 is surrounded by a rolling grille 14, which is an endless closed Loop forms over five sets of pulleys 15-19 runs.
  • the rolling grille 14 comprises three not with bars equipped engagement sections 20 and three with each support sections provided with ten bars 21.
  • the rolling grille 14 includes chains 22 and bars 24 connecting them Deflection rollers tension in the side view in the direction of the bars seen essentially a rectangle, however by the arrangement of the pulleys 15, 16 an inclined ramp 23 is generated at the top left corner.
  • the length of the engagement sections 20 corresponds approximately to the distance between the deflection rollers 15, 16 from each other, i.e. H. the length of the ramp 23.
  • the length of the Support sections 21 correspond essentially to the distance between the pulleys 16 and 17. Between these is a Pair of support rails 25, the support section lying thereon 21 stably supported. Above these support rails 25 is space for arranging a marking device for isolated Keep bags free.
  • the rolling grille 14 is by means of a drive roller 28 driven by a belt drive are driven by a geared motor 26, the output effected via an output roller 27.
  • vertically movable upper suction means 31 are provided, by an engagement section located in the area of the ramp 23 20 between the pulleys 15, 16 in the interior of the Loop retractable and removable from this. they are shown here in a lower position.
  • the upper suction means 31 comprise a vacuum box 33 and a suction opening 32, with which the top sack in the sack magazine 12 at its opening end, that comes to the left in the sack magazine, grasp and from the inside of the loop through the engaging portion 20 pull out.
  • the inclined ramp 23 lower suction means 34 can be seen that around a pivotable hollow shaft 36 designed as a suction tube is rotatable are, the lower suction means 34 in a dashed line shown position in a vertically downward direction Position and in a solid position in one through the engaging portion 20 through about 135 ° counter-clockwise pivoted position are shown. In the latter position, the lower suction means 34 with a suction opening 35 the lower sack wall of an isolated Hold on to the sack, which is then moved upwards the upper suction means 31 can be opened. In the area the inclined ramp 23 are spreading blades 37 in two Positions shown that are pivotable about a pivot bar 38 are attached to the swivel arms 39.
  • the spreading vanes 37 are in turn opposite the swivel arms 39 swiveling. To the left of the column structure 13 is in dashed lines a filler neck 51 with flaps not explained here and jaws recognizable, on which a single and from the spreading blades 37 spread bag can.
  • the upper suction means 31 and the lower suction means 34 again as details and thus easily recognizable shown.
  • the upper suction means 31 are in here shown an upper position, the suction opening 32 slightly lies above the support plane of the rolling grille 14.
  • the lower Suction means 34 are shown in two positions as shown in Figure 1; in the solid line shown by 135 ° counterclockwise swiveled position they lie on the upper suction means 31 at.
  • the upper suction means 31 are from this position to go up another amount so that the bag opening is opened by placing the bottom bag wall in the vicinity the opening is held by the lower suction means 34 and the top bag wall near the bag opening from the top Suction means 31 from the first-mentioned lower sack wall is subtracted.
  • FIG. 3 shows the machine frame 11 with the column structure 13 again shown in dashed lines.
  • the different Parts of the rolling grille drive are one of the left Deflection rollers 15, 16 and 19 and on the right one of the deflection rollers 17 and 18 and the driven roller 27 and the drive roller 28 shown.
  • the sack magazine 12 can also be seen.
  • the upper suction means 31 are in the center of the machine frame 11 shown with the vacuum box 33 and the suction opening 32.
  • the upper suction means 31 are in their uppermost and partial shown in its lowest position and in an intermediate position indicated by dashing before opening the sack.
  • the upper suction means 31 are in a guide device 49 stored in the column structure 13 and by means of an actuating cylinder 50 vertically adjustable.
  • the pivotable hollow shaft is of the lower suction means 34 36 recognizable, on the via an angle lever 41, an actuating cylinder 42 attacks with which the lower suction means 34 is pivoted can be.
  • gripper means 44 shown which are also attached to the swivel bar 38, on which, via a tab 45, an actuating cylinder, not shown here can attack to twist the pivot beam 38.
  • the gripper means 44 comprise two pivot arms 46 which are independent from each other in the longitudinal direction of the swivel bar 38 for adjustment can be adjusted to the bag width.
  • swivel arms 39 At the bottom End of the swivel arms 39 are adjustable in pairs against each other Clamping jaws 47 are provided which can be actuated via actuating cylinders 48 are. With these jaws 47, the occasional Bags can be detected in the area of their gussets.
  • the lower suction means are over a manifold 43 attached to the hollow shaft with negative pressure acts on the upper suction means via a flexible line 52.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)

Claims (8)

  1. Dispositif pour individualiser des sacs disposés dans une pile, comportant un magasin à sacs (12), dans lequel est située la pile de sacs, et comportant des moyens supérieurs d'aspiration (31) disposés au-dessus du magasin à sacs (12), et une grille à rouleaux (14) qui peut être entraínée et forme une boucle sans fin et est constituée par au moins deux chaínes (22) et des barreaux de grille (24) transversaux situés entre les chaínes, et qui forment au moins une section d'engagement (20) pour le passage des moyens supérieurs d'aspiration (21) et au moins une section d'appui (21) pour supporter un sac, la grille à rouleaux (14) entourant le magasin à sacs (12),
    caractérisé en ce
    que les moyens supérieurs d'aspiration (31) sont disposés dans la zone des ouvertures des sacs,
    qu'il est prévu des moyens inférieurs d'aspiration (34), qui sont déplaçables entre un sac individualisé, qui est soulevé par les moyens supérieurs d'aspiration (31), et la pile de sacs contre la paroi inférieure du sac séparé, dans la zone de l'ouverture du sac, et
    que la direction de circulation de la grille à rouleaux (14) est orientée, dans le plan des moyens d'aspiration (31, 34) de l'ouverture du sac en direction du fond du sac.
  2. Dispositif selon la revendication 1, caractérisé en ce
    que la grille à rouleaux (14) forme, dans la zone des moyens d'aspiration (31, 34), une rampe oblique (23), qui se raccorde, dans la direction de circulation de la grille à rouleaux (14), à un plan horizontal d'appui.
  3. Dispositif selon la revendication 2, caractérisé en ce
    que dans la zone du plan horizontal d'appui sont disposés des rails d'appui (25) servant à supporter de façon stable un sac déposé, au-dessous de la grille à rouleaux (14).
  4. Dispositif selon l'une des revendications 2 ou 3, caractérisé en ce que vu dans la direction des barreaux de grille (24), la grille à rouleaux (14) forme essentiellement un rectangle modifié par la rampe oblique (23).
  5. Dispositif selon l'une des revendications 2 à 4, caractérisé en ce que
    que la longueur des rails d'appui (25) correspond au moins à la longueur d'une section d'appui (21), et que la longueur de la rampe (23) correspond pour l'essentiel à la longueur d'une section d'engrènement (20).
  6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que
    que les moyens supérieurs d'aspiration (31) sont déplaçables dans un guide vertical et peuvent être introduits, dans la zone de la rampe oblique (23), dans la boucle sans fin formée par la grille à rouleaux (14).
  7. Dispositif selon l'une des revendications 1 à 6, caractérisé en ce
    que les moyens inférieurs d'aspiration (34), peuvent pivoter autour d'un axe.
  8. Dispositif selon l'une des revendications 1 à 7, comportant des moyens d'écartement et d'enfichage (34) pour déployer l'ouverture du sac et pour emmancher un sac séparé sur une tubulure de remplissage (51), caractérisé en ce
    que les moyens d'écartement et d'enfichage pivotants (37) peuvent être amenés par pivotement dans la zone située directement au-dessus de la rampe (23).
EP98117337A 1997-09-17 1998-09-12 Dispositif pour séparer des sacs Expired - Lifetime EP0903296B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19740851 1997-09-17
DE19740851A DE19740851A1 (de) 1997-09-17 1997-09-17 Vorrichtung zum Vereinzeln von Säcken

Publications (2)

Publication Number Publication Date
EP0903296A1 EP0903296A1 (fr) 1999-03-24
EP0903296B1 true EP0903296B1 (fr) 2001-07-25

Family

ID=7842615

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98117337A Expired - Lifetime EP0903296B1 (fr) 1997-09-17 1998-09-12 Dispositif pour séparer des sacs

Country Status (3)

Country Link
EP (1) EP0903296B1 (fr)
DE (2) DE19740851A1 (fr)
DK (1) DK0903296T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023216390A1 (fr) * 2022-05-13 2023-11-16 漳州佳龙科技股份有限公司 Ensacheuse secondaire d'emballage sous vide et son procédé de fonctionnement

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT328963B (de) * 1973-12-04 1976-04-26 Voest Ag Verfahren zum abnehmen eines einseitig offenen sackes von einem stapel solcher sacke und aufstecken des abgenommenen sackes auf einen absackstutzen sowie vorrichtung zur durchfuhrung des verfahrens
DE2527693A1 (de) * 1975-06-21 1977-01-13 Behn Verpackung Erwin Verfahren und vorrichtung zum oeffnen gestapelter saecke, insbesondere von papier- oder kunststoffsaecken
DE3000496C2 (de) * 1979-03-14 1984-05-03 Gebrüder Bühler AG, Uzwil Vorrichtung zur Einzelentnahme eines Sackes von einem Sackstapel und zu dessen Überführung an den Auslaufstutzen eines Fülltrichters
AT404116B (de) * 1988-11-29 1998-08-25 Binder Co Ag Einrichtung zur entnahme von säcken
AT404117B (de) * 1988-12-02 1998-08-25 Binder Co Ag Einrichtung zum zuführen eines vereinzelten sackes
DE3840646A1 (de) * 1988-12-02 1990-06-07 Chronos Richardson Gmbh Verfahren zum vereinzeln und zufuehren von saecken
DE4141253A1 (de) * 1991-12-14 1993-06-17 Chronos Richardson Gmbh Vorrichtung zum aufspreizen und aufstecken von saecken
DE19604718C1 (de) 1996-02-09 1997-09-04 Chronos Richardson Gmbh Verfahren und Vorrichtung zum Greifen, Aufspreizen und Aufstecken von Kunststoffsäcken
DE19650653C1 (de) 1996-12-06 1998-05-14 Chronos Richardson Gmbh Verfahren und Vorrichtung zum Vereinzeln und Öffnen von Säcken

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023216390A1 (fr) * 2022-05-13 2023-11-16 漳州佳龙科技股份有限公司 Ensacheuse secondaire d'emballage sous vide et son procédé de fonctionnement

Also Published As

Publication number Publication date
DK0903296T3 (da) 2001-10-15
EP0903296A1 (fr) 1999-03-24
DE59801072D1 (de) 2001-08-30
DE19740851A1 (de) 1999-03-18

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