EP0696539B1 - Einwickelvorrichtung zur Herstellung von Verpackungen - Google Patents

Einwickelvorrichtung zur Herstellung von Verpackungen Download PDF

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Publication number
EP0696539B1
EP0696539B1 EP95112079A EP95112079A EP0696539B1 EP 0696539 B1 EP0696539 B1 EP 0696539B1 EP 95112079 A EP95112079 A EP 95112079A EP 95112079 A EP95112079 A EP 95112079A EP 0696539 B1 EP0696539 B1 EP 0696539B1
Authority
EP
European Patent Office
Prior art keywords
seat
path
heating
packet
seats
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
EP95112079A
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English (en)
French (fr)
Other versions
EP0696539A1 (de
Inventor
Mario Spatafora
Fulvio Boldrini
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.)
GD SpA
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GD SpA
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Filing date
Publication date
Application filed by GD SpA filed Critical GD SpA
Publication of EP0696539A1 publication Critical patent/EP0696539A1/de
Application granted granted Critical
Publication of EP0696539B1 publication Critical patent/EP0696539B1/de
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
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members

Definitions

  • the present invention relates to a wrapping device for producing packets.
  • the present invention may be used to advantage on overwrapping machines for packets of cigarettes - to which the following description refers purely by way of example - but may equally be used to advantage on any wrapping machine on which superimposed portions of wrapping material with adhesive material in between are to be heated.
  • finished packets produced on a packing machine are covered with a sheet of normally transparent heat-seal material, which is folded about the packet to form a tubular wrapping, the ends of which extend beyond the ends of the packet on to which they are folded to define a protective outer wrapping.
  • the folded ends are normally stabilized by means of heat sealing devices located at one or more heat seal stations along the path of the packets, and which heat seal the packets when these are arrested at the stations.
  • a wrapping device for producing packets comprising a conveyor having a number of equally spaced seats, and movable in steps to feed said seats along a path extending through a succession of equally spaced holding stations at which said seats are adapted to stop; the device further comprising heating means adapted to cooperate with the end of each said packet, said heating means comprising, for each said seat, at least one heating element which is adapted to travel with said seat along said path, and is a passive element comprising a portion defining a heat accumulating block, and induction means for heating said heat accumulating blocks; characterized in that each said seat extends transversely of said path and is adapted to accommodate a respective said packet with a relevant end wall arranged at an open axial end of said seat; said induction means are located in each of at least part of said holding stations in a fixed position facing said axial end of said seats to supply heat to said accumulating blocks as they stop at said holding stations; each said accumulating block faces said axial end of
  • Number 1 in Figure 1 indicates a cellophaning machine comprising an overwrapping device 2 for forming a wrapping 3 of transparent material about packets 4 of cigarettes.
  • Device 2 comprises a conveyor wheel 5 supported on a frame 6 and located between two walls 7 of frame 6 so as to rotate anticlockwise (in Figure 2) in steps about an axis 8 perpendicular to walls 7.
  • Wheel 5 presents a number of peripheral radial seats 9 equally spaced about axis 8, and which are open at their opposite axial ends, and each receive a respective packet 4 with its longitudinal axis 10 parallel to axis 8, and with two end walls 11 of wrapping 3 perpendicular to axis 8 and located at the opposite axial ends of seat 9 facing respective walls 7.
  • seats 9 are fed forward by a distance equal to that between two adjacent seats 9, and, at the end of each step, each seat 9 is arrested at a hold station 9a.
  • Each wrapping 3 is formed beforehand in known manner (not shown) by folding a sheet of wrapping material (not shown) about packet 4 to form a tubular wrapping (not shown), the opposite end portions (not shown) of which project beyond the respective ends of packet 4, and are folded in known manner (not shown) to form four tabs (not shown) which are folded squarely on to one another and stabilized by heat sealing as packet 4 is fed forward by wheel 5.
  • wheel 5 presents a pair of compacting members 12 movable in opposite directions to and from an operating position contacting the outer surface of respective walls 11, and each comprising a square rocker arm 13 pivoting centrally on a respective pin 14 perpendicular to axis 8, and mounted between the ears of a respective fork 15 projecting from a respective axial end surface 16 of wheel 5.
  • Rocker arm 13 comprises two arms 17 and 18 extending on either side of pin 14, and of which arm 17 extends inside an axial through cavity 19 formed through wheel 5 radially inwards of seat 9 and separated by a wall 21 from the bottom surface 20 of seat 9.
  • Arm 18 on the other hand extends outside respective surface 16, and is fitted integrally on its free end with a heating element 22 facing a respective axial end of respective seat 9.
  • Each heating element 22 comprises a sealing plate 23 which, in use, is positioned contacting the outer surface of respective wall 11 when respective compacting member 12 is in the operating position; and a heat accumulating block 24 contacting the surface of plate 23 facing respective wall 7.
  • arm 17 of each compacting member 12 is connected to arm 17 of the other compacting member 12 via the interposition of a connecting rod 25, the central portion of which is hinged to the free end of the output rod 26 of a linear actuator 27 located radially inside respective cavity 19 and which provides for moving connecting rod 25 radially outwards in opposition to a spring 28 interposed between connecting rod 25 and wall 21.
  • wrapping device 2 also comprises a heating unit 29 in turn comprising a succession of pairs of induction heating members 30; and each heating member 30 - normally comprising a solenoid - in each pair is supported on frame 6 at a respective station 9a, and positioned facing and adjacent to accumulating block 24 of a respective compacting member 12 stationary in station 9a.
  • each wall 7 is defined, on the side facing wheel 5, by a surface 31 which presents a recessed portion 32 located a greater distance from wheel 5 than surface 31, and extending over the path portion of compacting members 12 along which members 12 are maintained in the raised idle position.
  • Surface 31 and recessed portion 32 present a number of cavities 33, each located at a station 9a, and each housing a cup-shaped casing 34 for a respective heating member 30.
  • heating members 30 are fixed heating elements requiring no power supply brushes or similar; and, on the other, compacting members 12, by traveling with packets 4, may cooperate with the packets for a relatively long period of time and at such relatively low operating temperatures as to in no way impair the material of wrappings 3.
  • wheel 5 may be the folding or drying wheel of a packing machine, wherein, as opposed to heat sealing, compacting members 12 provide simply for securing in position the gummed parts of the wrapping and drying the gum between the parts.
  • device 2 may be operated as described on sheets of wrapping material at least partly comprising metal material (e.g. foil or similar) for heat sealing the superimposed portions of the sheets.
  • metal material e.g. foil or similar

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Package Closures (AREA)
  • Wrapping Of Specific Fragile Articles (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)

Claims (6)

  1. Eine Einwickelvorrichtung zur Herstellung von Verpackungen (4), wobei die Vorrichtung (2) einen Förderer (5) umfaßt, der eine Anzahl von gleich beabstandeten Sitzen (9) enthält sowie in Schritten bewegbar ist, um die genannten Sitze (9) längs einer sich durch eine Folge von gleich beabstandeten Verweilstationen (9a), in denen die genannten Sitze (9) zu einem Stillstehen imstande sind, erstreckenden Bahn zu fördern; die Vorrrichtung (2) umfaßt ferner Heizeinrichtungen (22, 30), die für ein Zusammenwirken mit der Stirnfläche einer jeden erwähnten Verpackung (4) eingerichtet sind, wobei die besagten Heizeinrichtungen für jeden genannten Sitz mindestens einen Heizkörper (22), der zu einem Laufen mit dem genannten Sitz (9) längs der erwähnten Bahn imstande sowie ein passives Element ist, welches ein einen Wärmespeicherblock (24) bestimmendes Teil enthält, und Induktionsheizelemente (30) zur Beheizung der besagten Wärmespeicherblöcke (24) umfassen; dadurch gekennzeichnet, daß sich jeder genannte Sitz (9) quer zu der erwähnten Bahn erstreckt und zur Aufnahme einer jeweiligen erwähnten Verpackung (4) mit einer relevanten Stirnfläche (11), die an einem offenen axialen Ende des genannten Sitzes (9) angeordnet ist, eingerichtet ist; daß die besagten Induktionsheizelemente (30) in jeder von mindestens einigen der genannten Verweilstationen (9a) in einer ortsfesten Position in Gegenüberlage zu dem erwähnten axialen Ende der genannten Sitze angeordnet sind, um Wärme den besagten Wärmespeicherblöcken (24), während sie in den genannten Verweilstationen (9a) stillstehen, zuzuführen; daß jeder besagte Wärmespeicherblock (24) dem erwähnten axialen Ende seines zugeordneten Sitzes gegenüberliegt und mit Bezug zu dem besagten Förderer (5) quer zu der erwähnten Bahn sowie zu und von einer Erwärmungsbetriebsposition am axialen Ende des relevanten Sitzes (9), in welcher Position er im Gebrauch die genannte Stirnfläche der erwähnten Verpackung berührt, bewegbar ist.
  2. Eine Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß jeder genannte Heizkörper (22) ein Teil eines Anpreßorgans (12) bildet, welches im Gebrauch, wenn sich der Heizkörper (22) in der erwähnten Erwärmungsbetriebsposition befindet, mit der genannten Stirnfläche (11) einer zugeordneten, innenseitig des genannten Sitzes (9) aufgenommenen Verpackung (4) zusammenwirkt, um die erwähnte Verpackung (4) in Querrichtung zu der erwähnten Bahn zusammenzudrücken.
  3. Eine Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß jedes erwähnte Anpreßorgan (12) einen den relevanten Speicherblock (24) tragenden Schenkel (18) sowie Antriebsmittel (27), um den genannten Schenkel (18) um eine Achse (14) herum in Schwenkbewegungen zu versetzen, umfaßt.
  4. Eine Vorrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß jedes erwähnte Anpreßorgan (12) einen zentral um eine zugeordnete Achse (14) drehenden sowie zwei Schenkel (17, 18), die sich auf jeder Seite der besagten Achse (14) erstrecken, enthaltenden Schwenkarm (13) umfaßt; wobei der eine (18) der genannten Schenkel (17, 18) den relevanten Speicherblock (24) trägt und mit dem anderen (17) der genannten Schenkel (17, 18) Antriebsmittel (27) verbunden sind, um den erwähnten Schwenkarm (13) um die besagte Achse (14) herum in Schwenkbewegungen zu versetzen.
  5. Eine Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß die genannten Antriebsmittel (27) derart ausgelegt sind, um den besagten Speicherblock (24) in der erwähnten Erwärmungsbetriebsposition längs eines ersten Abschnitts der erwähnten Bahn und in einer abgehobenen, untätigen, vom axialen Ende des relevanten Sitzes (9) entfernten Position längs eines zweiten Abschnitts der erwähnten Bahn zu halten.
  6. Eine Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß sie ferner eine ortsfeste, in Gegenüberlage zu dem besagten querliegenden axialen Ende der genannten Sitze (9) angeordnete Wand (7) umfaßt; wobei die erwähnte ortsfeste Wand (7) auf der dem besagten Förderer (5) zugewandten Seite von einer Fläche (31) begrenzt wird, welche eine in einem größeren Abstand von dem Förderer (5) als die erwähnte Fläche (31) angeordnete sowie sich über den genannten zweiten Abschnitt der erwähnten Bahn erstreckende Aussparung (32) besitzt; und wobei die erwähnte ortsfeste Wand (7) an der erwähnten Fläche (31) sowie an der Aussparung (32) eine Anzahl von Induktionselementen (30) trägt, die die besagten Induktionsheizelemente (30) bestimmen und von denen jedes an einer jeweiligen genannten Verweilstation (9a) angeordnet ist.
EP95112079A 1994-08-03 1995-08-01 Einwickelvorrichtung zur Herstellung von Verpackungen Expired - Lifetime EP0696539B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO940378A IT1274878B (it) 1994-08-03 1994-08-03 Dispositivo di incarto per la realizzazione di pacchetti.
ITBO940378 1994-08-03

Publications (2)

Publication Number Publication Date
EP0696539A1 EP0696539A1 (de) 1996-02-14
EP0696539B1 true EP0696539B1 (de) 1998-06-10

Family

ID=11339982

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95112079A Expired - Lifetime EP0696539B1 (de) 1994-08-03 1995-08-01 Einwickelvorrichtung zur Herstellung von Verpackungen

Country Status (5)

Country Link
EP (1) EP0696539B1 (de)
JP (1) JPH0858738A (de)
CN (1) CN1055056C (de)
DE (1) DE69502890T2 (de)
IT (1) IT1274878B (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004011755A1 (de) * 2004-03-09 2005-09-29 Hauni Maschinenbau Ag Versiegelungsvorrichtung
DE102006021125A1 (de) * 2006-05-04 2007-11-08 Focke & Co.(Gmbh & Co. Kg) Vorrichtung und Verfahren zum Fixieren eines Produkts in einer Aufnahme, insbesondere beim Herstellen von Zigarettenpackungen
DE102015001850A1 (de) * 2015-02-17 2016-08-18 Focke & Co. (Gmbh & Co. Kg) Vorrichtung zum Herstellen von Packungen
DE102018209185B3 (de) 2018-06-08 2019-10-02 Theegarten-Pactec Gmbh & Co. Kg Verfahren und Vorrichtung zur Verpackung von kleinstückigen Artikeln in heißsiegelfähigem Verpackungsmaterial mit einem beheizbaren Halteelement
CN110182739A (zh) * 2019-05-28 2019-08-30 杭州集韵科技有限公司 袋装饮料灌装装置及其封口结构

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1086180A (en) * 1964-02-20 1967-10-04 Derek Henry Youngman An improved packing or wrapping machine of the mould wheel type
IT1018092B (it) * 1974-07-10 1977-09-30 Gd Spa Dispositivo per la saldatura con trollata degli involucri di mate riale termoplastico particolarmen te nelle macchine sovraincartatri ci ad esempio di pacchetti di sigarette e simili
DD250692A1 (de) * 1986-07-02 1987-10-21 Nagema Veb K Verfahren zum anwaermen von einwickelmaterial

Also Published As

Publication number Publication date
ITBO940378A1 (it) 1996-02-03
JPH0858738A (ja) 1996-03-05
IT1274878B (it) 1997-07-25
DE69502890D1 (de) 1998-07-16
ITBO940378A0 (it) 1994-08-03
DE69502890T2 (de) 1998-12-10
CN1055056C (zh) 2000-08-02
EP0696539A1 (de) 1996-02-14
CN1127211A (zh) 1996-07-24

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