EP0418688B1 - Dispositif pour produire des découpes alimentant un poste d'emballage à partir d'un matériel en bande - Google Patents

Dispositif pour produire des découpes alimentant un poste d'emballage à partir d'un matériel en bande Download PDF

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Publication number
EP0418688B1
EP0418688B1 EP90117353A EP90117353A EP0418688B1 EP 0418688 B1 EP0418688 B1 EP 0418688B1 EP 90117353 A EP90117353 A EP 90117353A EP 90117353 A EP90117353 A EP 90117353A EP 0418688 B1 EP0418688 B1 EP 0418688B1
Authority
EP
European Patent Office
Prior art keywords
packaging material
web
conveying
knife
collar
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
EP90117353A
Other languages
German (de)
English (en)
Other versions
EP0418688A2 (fr
EP0418688A3 (en
Inventor
Jürgen Sakowski
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.)
Maschinenfabrik Alfred Schmermund GmbH and Co
Original Assignee
Maschinenfabrik Alfred Schmermund GmbH and Co
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
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Application filed by Maschinenfabrik Alfred Schmermund GmbH and Co filed Critical Maschinenfabrik Alfred Schmermund GmbH and Co
Publication of EP0418688A2 publication Critical patent/EP0418688A2/fr
Publication of EP0418688A3 publication Critical patent/EP0418688A3/de
Application granted granted Critical
Publication of EP0418688B1 publication Critical patent/EP0418688B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B50/16—Cutting webs

Definitions

  • the invention relates to a device for producing frames for folding boxes to be fed to a packaging station, in particular cigarette packs, with a frame-cutting station having a knife for separating the frames from sheet-shaped packaging material having a width corresponding to the frame width and two conveyor lines converging in front of the frame-cutting station, each for a packaging material web with switchable preferred devices for the respective packaging material web.
  • Hinged-lid packages are known for packaging cigarettes and are folded from a blank around a block of cigarette wrapped in inner paper.
  • Such packages also include a frame which is glued to the outer paper blank, is arranged on the inside of the finished package and limits the removal area on the front of the package and, apart from the rear, the removal opening on three sides. Accordingly, the frames are folded and furthermore, in the folded state, are provided in the front area with slightly laterally flared projections, which are produced by corresponding incisions, in order to assist in holding the hinged lid in the closed position.
  • the frames are, for example, continuously separated from a packaging material web by a knife in a frame cutting station and pushed into pockets of a conveying device for prefolding, cf. e.g. DE-A-2 447 917.
  • DE-B-2 137 937 it is also known from DE-B-2 137 937 to provide an ejector for faulty blanks in folding-box gluing machines, which ejector has a displaceable deflection flap which guides a blank which is recognized as faulty by a reading device out of the conveying path along a roller.
  • the object of the invention is a device of the aforementioned To create a type that allows for a simple change of the packaging material webs from which the frames are made with a simple construction.
  • a path changing device is provided in the area between the converging conveyor lines, which has a fixed knife arranged between the two conveyor lines and on the opposite side of the respective conveyor line a respective movable knife cooperating with the fixed knife for cutting through the respective packaging material web the shape of the front or rear edge of the frames and for each conveying section includes a deflection device adjoining it in the conveying direction for the separated front end of a new packaging material web.
  • the device makes it possible in a simple manner to cut the end of a packaging material web corresponding to the rear edge of a frame and the beginning of a new packaging material web corresponding to the front edge of a frame and to remove the unnecessary ends.
  • FIG. 1 schematically shows a side view of a device for producing frames which are fed to a packaging station for cigarettes.
  • FIG. 2 shows a front view of part of the device of FIG. 1.
  • Fig. 3 shows a plan view of the part of the device shown in Fig. 2.
  • Fig. 4 shows a top view of a frame for a cigarette folding lid packet.
  • packaging material webs 1 are located on bobbins (not shown), one of the packaging material webs 1 being fed continuously via rollers 2 to a web changing device 3, transported through it, and fed from further rollers 4 to a frame cutting station having a pair of cooperating knife rollers 5, from the knife rollers 5 cut into frames and as such is fed to a packaging station.
  • Guides 6 serve to guide the packaging material webs 1 or the frames between the rollers 2, 4 or rollers 5.
  • the path changing device 3 comprises a fixed knife 7 with two mutually opposite cutting edges 8. Each of the two cutting edges 8 is used to cut through one of the two packaging material webs 1 in accordance with the course of a frame on its front or rear edge, cf. Fig. 4.
  • the knife 7 is arranged within the acute angle formed by the two transport paths of the two packaging material webs 1 running in the gap between the rollers 4, one cutting edge 8 each facing a packaging material web 1, and with one in the direction of the Rollers 4 extending and tapered guide piece 9 is provided.
  • the knives 10 can each be brought into the cutting position to the fixed knife 7 via a piston 11 of a compressed air cylinder 12.
  • the path changing device 3 comprises two adjustable guide strips 13 for bridging the path between the respective outer movable knife 10 and a fixed guide 6 following in the transport direction.
  • Each guide strip 13 can be adjusted, for example, by means of a manually operable crank 14 in such a way that it takes dashed position in which it blocks the path for the packaging material web 1 to the knife rollers 5 and directs the packaging material web 1 into a removal slot 15.
  • the crank 14 is blocked by means of a pin 17 which engages on the frame 16 in the position for the guide bar 13 which permits further transport to the knife rollers 5.
  • a packaging material web 1 is threaded through the web changing station 3 until it protrudes from the corresponding removal slot 15.
  • the actuation of the associated knife 10 is effected by triggering the actuation of the associated cylinder 12, as a result of which the front end of the packaging material web 1 is separated and can be removed manually, while the remaining packaging material web 1 now has a front edge with a shape corresponding to the front edge of the later frame having.
  • frames of a predetermined length are cut off and fed to the subsequent packaging station. Only the first frame is slightly shorter so that the knife rollers 5 cut into the void for the first time and no narrow strip is cut off which could lead to faults.
  • the second packaging material web 1 is also through the web changing device 3 threaded and cut, but then remains in this position until the first packaging material web 1 is practically used up. If a corresponding sensor signals that the end of the first packaging material web 1 has almost been reached, the machine speed is reduced to a predetermined target speed. After it has been reached, the knife 10 for the first packaging material web 1 is actuated by an electronic control, as a result of which the first packaging material web 1 receives a rear edge corresponding to the rear edge of a frame at the end.
  • the preference for the first packaging material web 1 in front of the web changing device 3 is interrupted and the corresponding preference for the second packaging material web 1 is switched on.
  • the shaped end of the first and the shaped beginning of the second packaging material web 1 now run into the frame cutting station with a small gap to one another.
  • the machine speed is increased accordingly again and the changing process is repeated at the end of the second packaging material web 1.
  • the distance between the cutting edges of the knives 7, 10 and those of the knives of the frame cutting station is expediently a multiple of the frame length in the conveying direction plus a slight play of, for example, 1 mm, in order to prevent the generation of snippets in the frame cutting station when the feed is switched over without delay.
  • the movable knives 10 can have guide bushes 18 which receive guide rods 19, which in turn are arranged in a fixed manner in frame parts 20 in order to guide the movable knives 10 in a vertical direction to the fixed knife 7.
  • the frame parts 20 also support the cylinders 12.
  • springs 21 are arranged between the movable knives 10, which bias the knives 10 outwards against the direction of action of the cylinders 12.
  • the springs 21 are supported by rods 22 which are attached to the frame parts 20.

Landscapes

  • Wrapping Of Specific Fragile Articles (AREA)
  • Details Of Cutting Devices (AREA)
  • Making Paper Articles (AREA)
  • Advancing Webs (AREA)

Claims (11)

  1. Dispositif de fabrication de renforts amenés, ultérieurement, à un poste d'emballage pour boîtes pliantes, plus particulièrement pour paquets de cigarettes, comprenant un poste de découpe de renforts, muni d'une lame (5) permettant de découper lesdits renforts dans une bande de matériau d'emballage dont la largeur correspond à la largeur desdits renforts, ainsi que deux lignes de transport se rejoignant face au poste de découpe de renforts, chacune desdites lignes transportant une bande de matériau d'emballage (1), et des dispositifs d'avance pour chacune des deux bandes de matériau d'emballage (1), caractérisé en ce qu'un dispositif de changement de bande (3) est prévu dans la zone de jonction des deux lignes de transport, comprenant une lame fixe (7) montée entre les deux lignes de transport et, sur la face opposée de chaque ligne de transport, une lame mobile (10) coopérant avec ladite lame fixe (7) pour effectuer des découpes dans la bande de matériau d'emballage (1) en fonction de la forme des bords avant et arrière des renforts et en ce qu'un dispositif de déviation (13-17) est monté en aval, vu dans le sens du convoyage, pour chaque ligne de transport, pour dévier l'extrémité avant découpée d'une nouvelle bande de matériau d'emballage (1).
  2. Dispositif selon la revendication 1, caractérisé en ce que la lame fixe (7) est équipée d'un guidage central (9) s'étendant sensiblement jusqu'au point de jonction des deux lignes de transport.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que les lames mobiles (10) peuvent être déplacées dans le sens inverse du sens de précontrainte d'un ressort.
  4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les lames mobiles (10) peuvent être déplacées, par des vérins d'actionnement (12), en position de coupe en coopération avec la lame fixe (7).
  5. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les lames mobiles (10) peuvent être déplacées le long de guidages (19).
  6. Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le dispositif de déviation comprend une barrette de guidage (13) délimitant la face extérieure de la ligne de transport correspondante et pouvant être déplacée par pivotement dans cette dernière.
  7. Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le dispositif de déviation comprend une fente de prélèvement (15) pour saisir l'extrémité avant découpée d'une bande de matériau d'emballage (1).
  8. Dispositif selon la revendication 7, caractérisé en ce que la fente de prélèvement (15) peut être obturée par la barrette de guidage (13).
  9. Dispositif selon l'une quelconque des revendications 6 à 8, caractérisé en ce que la barrette (13) peut être déplacée par une manivelle (14) à actionnement manuel.
  10. Dispositif selon l'une quelconque des revendications 1 à 9, caractérisé en ce que l'écartement entre les bords tranchants (8) de la lame fixe (7) et les bords tranchants des lames (5) du poste de découpe de renforts est un multiple de la longueur d'un renfort, vu dans le sens du convoyage, plus un faible jeu.
  11. Dispositif selon l'une quelconque des revendications 1 à 10, caractérisé en ce que le poste de découpe de renforts est équipé de rouleaux à lames (5).
EP90117353A 1989-09-20 1990-09-08 Dispositif pour produire des découpes alimentant un poste d'emballage à partir d'un matériel en bande Expired - Lifetime EP0418688B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3931310A DE3931310C1 (fr) 1989-09-20 1989-09-20
DE3931310 1989-09-20

Publications (3)

Publication Number Publication Date
EP0418688A2 EP0418688A2 (fr) 1991-03-27
EP0418688A3 EP0418688A3 (en) 1991-08-07
EP0418688B1 true EP0418688B1 (fr) 1993-12-22

Family

ID=6389765

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90117353A Expired - Lifetime EP0418688B1 (fr) 1989-09-20 1990-09-08 Dispositif pour produire des découpes alimentant un poste d'emballage à partir d'un matériel en bande

Country Status (4)

Country Link
EP (1) EP0418688B1 (fr)
JP (1) JPH03162939A (fr)
DE (1) DE3931310C1 (fr)
RU (1) RU1804425C (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4102005A1 (de) * 1991-01-24 1992-07-30 Focke & Co Verfahren und vorrichtung zum herstellen von klappschachteln mit kragen
CN113023450B (zh) * 2021-02-24 2023-04-25 北京金诚印务有限公司 一种数字印刷切割装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB893532A (en) * 1960-04-26 1962-04-11 Frank M Sayford Company Improvements in or relating to the forming of blanks
DE2137937C3 (de) * 1971-07-26 1973-12-13 Ems Elektronik-Messtechnik Dipl.Ing. Leo Schmidt, 1000 Berlin Vorrichtung zum Auswerfen von fehlerhaften Zuschnitten bei Faltschach tel Klebemaschinen
IT1146017B (it) * 1981-04-09 1986-11-12 Sasib Spa Metodo e dispositivo per l alimentazione continua autoselettiva di nastri anche con tratti di scarto in un dispositivo elettronico per il taglio progressivo di bobine di carta stampata a foglietti

Also Published As

Publication number Publication date
RU1804425C (ru) 1993-03-23
EP0418688A2 (fr) 1991-03-27
JPH03162939A (ja) 1991-07-12
EP0418688A3 (en) 1991-08-07
DE3931310C1 (fr) 1990-12-06

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