EP0365812B1 - Dispositif pour alimenter un dispositif de pliage en ébauches d'emballage - Google Patents

Dispositif pour alimenter un dispositif de pliage en ébauches d'emballage Download PDF

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Publication number
EP0365812B1
EP0365812B1 EP89116912A EP89116912A EP0365812B1 EP 0365812 B1 EP0365812 B1 EP 0365812B1 EP 89116912 A EP89116912 A EP 89116912A EP 89116912 A EP89116912 A EP 89116912A EP 0365812 B1 EP0365812 B1 EP 0365812B1
Authority
EP
European Patent Office
Prior art keywords
knife
roller
eccentric
cutting
counter
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
EP89116912A
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German (de)
English (en)
Other versions
EP0365812A1 (fr
Inventor
Heinz Focke
Jürgen Wach
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.)
Focke and Co GmbH and Co KG
Original Assignee
Focke and Co GmbH and Co KG
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 Focke and Co GmbH and Co KG filed Critical Focke and Co GmbH and Co KG
Publication of EP0365812A1 publication Critical patent/EP0365812A1/fr
Application granted granted Critical
Publication of EP0365812B1 publication Critical patent/EP0365812B1/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
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/12—Feeding webs from rolls
    • 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
    • B65B57/00—Automatic control, checking, warning, or safety devices
    • B65B57/10—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of articles or materials to be packaged
    • B65B57/12—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of articles or materials to be packaged and operating to control, or stop, the feed of wrapping materials, containers, or packages

Definitions

  • the invention relates to a device for feeding blanks of packaging material to a folding unit for packaging objects or groups of objects, the blanks being separable from a continuous material web by interacting knives, namely circumferential cutting knives and fixed counter knives, and being able to be fed to the folding unit. as well as with a drive for the material web, in particular with pull rollers, and with a rotating knife roller carrying at least one cutting knife, the counter knife being movable out of engagement with the cutting knife of the rotating knife roller when objects are not supplied.
  • Such a device is known from US-A 4 075 816, in which the production and therefore also the feeding of blanks to the folding turret is interrupted if and for as long Objects are not made available to the folding unit. If there is no supply of objects to be wrapped, a fixed counter knife is moved downwards. The associated knife roller is constantly driven. There is no packaging material in the area of the cutting elements during the time when there is no supply of objects. This means that a start-up phase is required when the packaging process is resumed.
  • EP-A-0 297 266 proposes methods and apparatus for feeding packaging blanks to a folding unit.
  • the device of this older problem solution is designed so that knives are arranged on two counter-rotating knife rollers.
  • the cutting knives are adjustable in such a way that they are moved out of cutting engagement for the temporary interruption of the blank production, namely by pivoting the pivoting cutting knives.
  • the invention has for its object to provide an improved alternative to the aforementioned devices, in which no start-up phase is required, especially when resuming the packaging process.
  • the device according to the invention is characterized in that the counter knife intermittently, namely for the moment of the juxtaposition to the cutting knife of the rotating knife roller, is movable except cutting position.
  • the material web is in the area of the cutting elements during the stop. These are temporarily disengaged so that a cut does not occur. When the packaging process is resumed, no start-up phases are required. Rather, the separating cut can be carried out directly in the region of the material web lying in the correct position.
  • the counter knife is attached to an actuating lever which can be pivoted by means of an actuating gear, in particular by an eccentric gear, and disengages the counter knife by the pivoting movement.
  • the adjusting movements of the counter knife are dependent on the movement of the constantly rotating knife roller.
  • This is provided with a cam disc to control the movement of an actuator for the actuating lever or the eccentric gear.
  • the embodiment shown is about the packaging stacks of paper handkerchiefs, but also of other objects. These are to be encased in a cut from film material, for example a PE film.
  • the packaging material or the blank 10 is conveyed to the circumference of a folding turret 11, in the area of which the objects are wrapped in the blank 10 and the latter is folded.
  • the structure and method of operation of the folding turret 11 result from DE-A-37 01 273.
  • the blanks 10 are separated one after the other from a preferably continuously conveyed material web 12. This is drawn off from a bobbin (not shown) and conveyed via deflection rollers 13, 14 and via a double rocker 15 to compensate for fluctuations in movement to a separation station 16 for severing the blanks 10.
  • the material web 12 is conveyed at an essentially constant speed.
  • the separation station 16 is preceded by a pair of interacting pull rollers 17, 18. At least one of these pull rollers 17, 18 is driven by a stepper motor 19, which causes the material web 12 to be precisely fed so that exact sections corresponding to a cut length can be conveyed.
  • the blanks 10 produced in the region of the separating station 16 are brought to the circumference of the folding turret 11 by a transfer conveyor 20.
  • the above-described details of the device correspond in structure and function of the device according to EP-A-0 297 266. It is a matter, as in the aforementioned older patent application, of designing the separating station 16 in such a way that the production and thus the supply of blanks 10 to the folding turret 11 is temporarily interrupted, namely when no objects to be wrapped (handkerchief stack) are delivered.
  • the Cutting station 16 is, as in the earlier patent application mentioned, designed for this purpose in such a way that cutting elements of the cutting station 16 continue to run during this phase, but the cutting function is interrupted and the material web 12 is stopped.
  • the separation station 16 is formed in the core by a continuously rotating knife roller 21 and by a fixed or stationary counter knife 22.
  • the knife roller 21 is formed with two diametrically opposite cutting knives 23, 24. As is generally customary, these are arranged such that their cutting edge protrudes slightly beyond the circumference of the knife roller 21.
  • the knife roller 21 is designed as a suction roller with conventional suction bores 25. These ensure an exact contact of the material web 12 on the circumference of the knife roller 21.
  • the knife roller 21 acts as a conveying element for the material web 12 or the blank 10, which is applied an intermediate conveyor roller 27, also designed as a suction roller with suction bores 26, is transferred. From this the blank 10 is forwarded to the transfer conveyor 20.
  • the function of the cutting elements is interrupted, however, when the knife roller 21 and with subsequent conveying bodies also moved on.
  • the cutting function is interrupted here in that the counter knife 22 is (temporarily) moved out of the cutting position.
  • the cutting knives 23, 24 can be moved past the stationary material web 12 without a separating cut being carried out.
  • the counter knife 22 is attached to a support arm 28, which can be pivoted about a pivot bearing 29 located away from the counter knife 22.
  • the support arm 28 is pivoted by an actuating member 30 in the sense of lifting the counter knife 22 from the cutting position, in the illustration in FIGS. 1 and 2 clockwise.
  • These lifting movements of the counter knife 22 with the support arm 28 take place against the load of a strongly prestressed compression spring 31, by means of which the support arm 28 and thus the counter knife 22 are loaded in the direction of the cutting position.
  • the counter knife 22 carries out small lifting movements, in cycles, namely each time the cutting knife 23 or 24 moves past the counter knife 22.
  • the support arm 28 or the counter knife 22 are accordingly adjusted in cycles, namely controlled by the rotary movement of the knife roller 21.
  • the counter knife 22 accordingly carries out pulsating lifting movements.
  • the actuator 30 does not act directly on the support arm 28, but via an intermediate gear, which is designed here as an eccentric gear 32. This is also driven pulsating or swinging. The actuating movements thus generated are transmitted to the support arm 28 via a stop piece 33.
  • the actuator 30 is designed in the present embodiment as an actuating lever 34.
  • This is connected to a pivot pin 35 of the eccentric gear 32, such that when the adjusting lever 34 is pivoted, the pivot pin 35 and, via this, the eccentric gear 32 is adjusted in the sense of a lifting movement of the support arm 28.
  • a transverse pivot lever 36 is attached to the free end of the pivot pin 35.
  • the adjusting lever 34 is connected off-center to the pivot 35, such that pivoting movements of the adjusting lever 34 trigger corresponding movements of the pivot lever 36, which are transmitted to the pivot 35.
  • the movements of the adjusting lever 34 are controlled by the rotary movement of the knife roller 21.
  • a cam 38 is also rotated. This is formed in the area of the cutting knives 23, 24 with adjusting cams 39.
  • a feeler roller 40 at the free end of the actuating lever 34 runs on the circumference of the cam disc. In the area of the adjusting cams 39, pivoting movements of the adjusting lever 34 are generated such that the counter knife 22 is briefly moved out of the cutting position.
  • the adjusting device for the counter knife 22 is ineffective.
  • the adjusting lever 34 or its feeler roller 40 can be moved out of engagement with the cam plate 38.
  • the adjusting lever 34 can therefore (additionally) be pivoted in a transverse plane, namely about a pivot bearing 41. This is formed by a bearing journal 42, with which the adjusting lever 34 is also fastened to the pivot lever 36.
  • the actuating lever 34 is provided with a side-facing extension 43, on which an actuating member for pivoting the actuating lever 34 engages around the pivot bearing 41.
  • the actuating member is an actuating cylinder 44 which is articulated and fixed in place (machine frame 45) and its piston rod is pivotally connected to the shoulder 43 of the actuating lever 34.
  • the approach 43 is here provided with a connecting pin 46 on which the end of the piston rod is rotatably mounted.
  • the actuating cylinder 44 is set in motion by a corresponding signal such that the actuating lever 34 is pivoted from the starting position shown in broken lines in FIG. 3 into the actuating position shown in solid lines.
  • the feeler roller rests on the circumference of the cam 38 and transmits the described positioning movements to the eccentric gear 32.
  • the adjusting lever 34 is pivoted out of engagement with the cam 38 again. The counter knife 22 is thereby continuously positioned in the cutting position.
  • two support arms 28 are arranged at a distance from one another and connected to one another by a resilient cross member 47.
  • the cross member 47 is designed as a hollow body.
  • the counter knife 22 is attached to one side of the same.
  • the support arms 28 are each mounted with a pivot 48 in a fixed cheek 49 of the machine frame 45 to form the coaxial pivot bearing 29.
  • the eccentric gears 32 assigned to the two support arms 28 are designed to match and are connected to one another.
  • An eccentric pin 50 is attached to the pivot pin 35 in a staggered manner. On this a ball bearing ring 51 is arranged, which is moved up and down when the pivot rotates and transmits the lifting movements to the stop pieces 33.
  • the eccentric pins 50 of the two eccentric gears 32 are connected to one another by a connecting shaft 52. This runs within the hollow traverse 47 and is used for Transmission of the swiveling movements of the drive (swiveling lever 36), which is only arranged on one side, to the opposite eccentric gear 32.
  • the pivot pin is rotatably mounted in the cheek 49.
  • the cut blanks 10 are transferred from the knife roller 21 designed as a conveyor roller to the intermediate conveyor roller 27.
  • a punching roller 54 comes into effect, by means of which punchings or perforations are made in the blanks 10, e.g. for an opening tab.
  • the punching roller 54 can be equipped with approximately radially directed knives 55, which are removably attached in a sufficiently dimensioned recess 56 of the punching roller 54.
  • the arrangement is such that the blades 55 can be easily replaced.
  • punch knives 57 can be attached to the punch roll 54, also in a corresponding recess 58. These punch knives 57 extend along a partial circumference of the punch roll 54 and are designed to generate complex perforation or cutting images in the blank 10 .
  • two punching knives 57 of this type which are arranged at a distance from one another, are detachably fastened, namely with screws 59.
  • the actual punching tool or a punching edge 60 is designed in the form of a truncated V for production a corresponding perforated punching in the blank 10.
  • the arrangement of two of these tools on the common punching roll 54 serves the two-track operation of the device. This is accordingly oriented such that a double-wide material web or two material webs corresponding to the width of a blank 10 are fed to the separating station 16 and that two blanks 10 are produced simultaneously and fed to the folding turret 11.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Making Paper Articles (AREA)

Claims (13)

  1. Dispositif d'amenée de flans (10) de matériau d'empaquetage à un dispositif de pliage (11) pour l'empaquetage d'objets ou de groupes d'objets, les flans (10) étant détachés d'une bande continue de matériau (12) par des couteaux coopérants, à savoir des couteaux tournants (23, 24) et des contre-conteaux fixes (22), et amenés au dispositif de plage (11), le dispositif comportant un moyen d'entraînement de la bande de matériau (12), en particulier des rouleaux tracteurs (17, 18), et un cylindre à couteaux tournant (21) portant au moins un couteau (23,24), le contre-couteau (22) étant, en cas d'absence d'amenée d'ojets, mû de façon à être mis hors de prise avec le couteau (23, 24) du cylindre à couteaux tournant (21), caractérisé par le fait que le contre-couteau (22) est écarté de sa position de coupe par intermittence, à savoir chaque moment où le couteau (23,24) du cylindre à couteaux tournant (21) est en face de lui.
  2. Dispositif selon la revendication 1, caractérisé par le fait que les mouvements du contre-couteau (22) sont commandés par le cylindre à couteaux (21), qui est soumis en permanence à rotation, en particulier par l'intermédiaire d'une came de forme correspondante (38) avec mécanisme de manoeuvre entraîné par celle-ci.
  3. Dispositif selon la revendication 2, caractérisé par le fait que le mécanisme d'actionnement présente un lever de manoeuvre (34) dont les mouvements de manoeuvre, transmis au contre-couteau (22), sont tirés du cylindre à couteaux (21), en particulier par appui d'un galet palpeur (40) sur la came (38).
  4. Dispositif selon la revendication 2 et une ou plusieurs des autres revendications, caractérisé par le fait que pendant la production de flans (10), le mécanisme d'actionnement du contre-couteau (22) est dégagé pour la manoeuvre du cylindre à couteaux (21), en particulier, le levier de manoeuvre (34) est dégagé de la came (38).
  5. Dispositif selon la revendication 4, caractérisé par le fait que le levier de manoeuvre (34) peut tourner dans un plan perpendiculaire au plan de la came (38), en particulier par l'action d'un vérin (44) en exécutant un mouvement de rotation autour d'un palier (41) avec axe de rotation dirigé transversalement.
  6. Dispositif selon la revendication 1 et une ou plusieurs des autres revendications, caractérisé par le fait que le contre-couteau (22), pour l'interruption du processus de coupe, est écarté de manière pulsatoire de sa position de coupe par un mécanisme excentrique (32).
  7. Dispositif selon la revendication 6 et une ou plusieurs des revendications précédentes, caractérisé par le fait que le mécanisme excentrique (32) est entraîné (de manière pulsatoire) par le levier de manoeuvre (34).
  8. Dispositif selon la revendication 7, caractérisé par le fait que le levier de manoeuvre (34) est lié à un organe d'actionnement du mécanisme excentrique (32), en particulier par l'intermédiaire d'un levier oscillant (36) comportant un pivot excentrique (35).
  9. Dispositif selon la revendication 8, caractérisé par le fait que le pivot (35) est joint, avec décalage parallèle à l'axe, à un bouton d'excentrique (50) qui est monté dans un bague tournante, en particulier une bague de roulement à billes (51), pour la transmission des mouvements d'élévation au contre-couteau (22).
  10. Dispositif selon la revendication 1 et une ou plusieurs des autres revendications, caractérisé par le fait que le contre-couteau est monté sur un bras support basculant (28) qui, pour l'écartement du contre-couteau (22) de sa position de coupe, bascule autour d'un palier (29), en particulier par l'action du mécanisme excentrique (32).
  11. Dispositif selon la revendication 1 et une ou plusieurs des autres revendications, caractérisé par le fait que le contre-couteau (22) est tenu par deux organes de support espacés, en particulier par deux bras supports (28) qui sont réunis par une traverse (47) et mus ensemble.
  12. Dispositif selon la revendication 11, caractérisé par le fait qu'à chaque bras support (28) est adjoint un mécanisme excentrique (32), les deux mécanismes excentriques (32) étant accouplés, en particulier par un arbre de liaison (52) passant dans la traverse creuse (47) qui est joint au bouton d'excentrique (50) de chaque mécanisme excentrique (32).
  13. Dispositif selon la revendication 1 et une ou plusieurs des autres revendications, caractérisé par le fait qu'à un cylindre transporteur intermédiaire (27) contigu au cylindre à couteaux (21) ou appuyé contre celui-ci est associés un cylindre de coupe (54) pour la production de flans et de perforations dans la zone du flan, ce cylindre de coupe (54) présentant des outils de coupe montés de manière amovible.
EP89116912A 1988-09-24 1989-09-13 Dispositif pour alimenter un dispositif de pliage en ébauches d'emballage Expired - Lifetime EP0365812B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3832533A DE3832533A1 (de) 1988-09-24 1988-09-24 Vorrichtung zum zufuehren von verpackungs-zuschnitten zu einem faltaggregat
DE3832533 1988-09-24

Publications (2)

Publication Number Publication Date
EP0365812A1 EP0365812A1 (fr) 1990-05-02
EP0365812B1 true EP0365812B1 (fr) 1994-03-30

Family

ID=6363664

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89116912A Expired - Lifetime EP0365812B1 (fr) 1988-09-24 1989-09-13 Dispositif pour alimenter un dispositif de pliage en ébauches d'emballage

Country Status (4)

Country Link
US (2) US5014490A (fr)
EP (1) EP0365812B1 (fr)
JP (1) JP2556595B2 (fr)
DE (2) DE3832533A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3832533A1 (de) * 1988-09-24 1990-03-29 Focke & Co Vorrichtung zum zufuehren von verpackungs-zuschnitten zu einem faltaggregat
DE4234663A1 (de) * 1992-10-15 1994-04-21 Focke & Co Vorrichtung zum Transport von bahnförmigem Verpackungsmaterial
DE4411358B4 (de) * 1994-03-31 2005-10-27 Focke & Co.(Gmbh & Co. Kg) Vorrichtung zum Herstellen von Verpackungen aus insbesondere dünner Kunststofffolie
US5611194A (en) * 1994-11-14 1997-03-18 R. A. Jones & Co. Inc. Tuck roller with improved web tension control
IT1280369B1 (it) * 1995-02-21 1998-01-20 Gd Spa Macchina impacchettatrice continua di sigarette
US5771662A (en) * 1996-06-28 1998-06-30 Douglas Machine Limited Liability Company Apparatus and methods for producing shrink wrap packaging
DE19652210A1 (de) * 1996-12-16 1998-06-18 Focke & Co Verfahren zum Betrieb von Verpackungsmaschinen sowie Verpackungsmaschine
FI109113B (fi) * 2000-02-17 2002-05-31 Haloila M Oy Ab Käärintälaite
PE20041044A1 (es) * 2003-05-23 2004-12-30 Colgate Palmolive Co Metodo para envolver productos
US7032360B2 (en) * 2003-10-29 2006-04-25 Douglas Machine, Inc. Apparatus and methods for producing shrink wrap packaging

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3269085A (en) * 1963-09-23 1966-08-30 Package Machinery Co Wrapper feed mechanism

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3118263A (en) * 1964-01-21 Apparatus for feeding wrapping material to wrapping machines
GB1569124A (en) * 1976-02-05 1980-06-11 Molins Ltd Production of two-piece wrappers
US4075816A (en) * 1977-01-06 1978-02-28 Franklin Electric Subsidiaries, Inc. Wrapper sheet feed for wrapping machine
US4159661A (en) * 1977-07-05 1979-07-03 Egan Machinery Company Rotary cutter
DE2743561C3 (de) * 1977-09-28 1980-09-04 Jagenberg-Werke Ag, 4000 Duesseldorf Vorrichtung zum Außerbetriebsetzen des Schneidbetriebes an einem Rotationsquerschneider
DE2949685A1 (de) * 1979-12-11 1981-06-19 Focke & Co, 2810 Verden Vorrichtung zum herstellen von packungszuschnitten durch abtrennen von einer fortlaufenden bahn
DE3348487C2 (de) * 1983-09-14 1998-05-20 Focke & Co Vorrichtung zum Herstellen von Großpackungen
DE3701273A1 (de) * 1987-01-17 1988-07-28 Focke & Co Verfahren und vorrichtung zum verpacken von papier-taschentuechern
DE3721459A1 (de) * 1987-06-30 1989-01-12 Focke & Co Verfahren und vorrichtung zum zufuehren von verpackungs-zuschnitten zu einem faltaggregat
DE3832533A1 (de) * 1988-09-24 1990-03-29 Focke & Co Vorrichtung zum zufuehren von verpackungs-zuschnitten zu einem faltaggregat

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3269085A (en) * 1963-09-23 1966-08-30 Package Machinery Co Wrapper feed mechanism

Also Published As

Publication number Publication date
DE58907340D1 (de) 1994-05-05
JPH02180132A (ja) 1990-07-13
US5092103A (en) 1992-03-03
DE3832533A1 (de) 1990-03-29
JP2556595B2 (ja) 1996-11-20
EP0365812A1 (fr) 1990-05-02
US5014490A (en) 1991-05-14

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