EP0187323B1 - Procédé et dispositif de fabrication de flans d'emballages - Google Patents

Procédé et dispositif de fabrication de flans d'emballages Download PDF

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Publication number
EP0187323B1
EP0187323B1 EP85116139A EP85116139A EP0187323B1 EP 0187323 B1 EP0187323 B1 EP 0187323B1 EP 85116139 A EP85116139 A EP 85116139A EP 85116139 A EP85116139 A EP 85116139A EP 0187323 B1 EP0187323 B1 EP 0187323B1
Authority
EP
European Patent Office
Prior art keywords
embossing
sheet
rollers
station
roller
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
Application number
EP85116139A
Other languages
German (de)
English (en)
Other versions
EP0187323A1 (fr
Inventor
Heinz Focke
Jürgen Focke
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 EP0187323A1 publication Critical patent/EP0187323A1/fr
Application granted granted Critical
Publication of EP0187323B1 publication Critical patent/EP0187323B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/08—Creasing
    • B31F1/10—Creasing by rotary tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/384—Cutting-out; Stamping-out using rotating drums
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D2007/1881—Means for removing cut-out material or waste using countertools
    • 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
    • B31B50/146—Cutting, e.g. perforating, punching, slitting or trimming using tools mounted on a drum
    • 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
    • B31B50/20—Cutting sheets or blanks
    • B31B50/22—Notching; Trimming edges of flaps
    • 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
    • B31B50/25—Surface scoring
    • B31B50/256—Surface scoring using tools mounted on a drum
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0524—Plural cutting steps
    • Y10T83/0572—Plural cutting steps effect progressive cut
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2066—By fluid current
    • Y10T83/207—By suction means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4705—Plural separately mounted flying cutters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4766—Orbital motion of cutting blade
    • Y10T83/4795—Rotary tool
    • Y10T83/4804—Single tool action drive

Definitions

  • the invention relates to a method for producing blanks for packaging (folding cartons, folding boxes) from paper, cardboard or the like. By cutting off a web of packaging material, the blanks being separated from the web during transport, in particular at constant speed , and an apparatus for performing this method.
  • Such a method and the associated device are known from AT-B-102 844, which deals with the production of blanks which are arranged on the material web without interlocking, so that no pieces of waste are formed between toothed folding tabs of adjacent blanks that require special treatment.
  • the present invention is concerned with producing blanks for folding boxes, folding boxes or the like from thin cardboard, which are used extensively for the packaging of medicaments, etc.
  • the special feature of the design of the blanks is that folding tabs for forming the end faces of the folding box are relatively complex and are arranged on the material web with mutual engagement (toothing) in order to save material.
  • side walls of the folding box associated side tabs are formed with a smaller width than that of the assigned side wall. Due to the smaller widths of folding flaps, waste pieces are created when punching or separating the blanks.
  • the invention has for its object to provide a method and a device of the type mentioned, which or allows increased removal of the blanks with increased performance while simultaneously shaping the folding flap at both ends of the respective blank.
  • the production of the blanks is carried out in successive work cycles carried out during the transport movement of the material web.
  • the cuts are cut off with simultaneous shaping of the folding flaps at both ends of the cut in several, in particular two, successive separating cuts. These are laid out in such a way that each cut can be carried out without being affected by other necessary cuts.
  • selection of the successive separating cuts ensures that separating cuts which are at a short distance from one another due to the design of the folding flaps do not have to be carried out simultaneously. This applies in particular to separating cuts extending in the longitudinal direction of the material web or in the conveying direction thereof for the lateral limitation of the waste pieces formed between the toothed flaps arranged adjacent to each other.
  • embossments for forming fold lines within the blank are carried out in successive steps such that, for example, only longitudinal fold lines are formed in the first in a first embossing cycle and transverse fold lines are formed in a subsequent embossing cycle.
  • the separating cuts for separating the blanks from the subsequent web are carried out in accordance with a further proposal of the invention, which is known per se from EP-A-116 745, in such a way that the blanks remain connected to the web to the end via thin remaining connections. This makes it possible, in particular, to mechanically remove the waste pieces formed in the area of the folding tabs.
  • the blanks are then separated by tearing off, in particular by the locally higher transport speed of the web or the respective front blank.
  • the exemplary embodiment of the device shown relates to the production of blanks 10, as are used in a variety of ways in the packaging industry, for example for accommodating pharmaceutical and cosmetic products.
  • the blanks 10 are separated from a continuous web 11 of packaging material, in particular made of thin cardboard, one after the other and fed to a packaging machine for producing the folding cartons.
  • the blanks 10 extend over the width of the web 11 or their width corresponds to the transverse dimension of a spread blank 10.
  • this consists of marked surface areas for forming a front wall 12, a rear wall 13 and narrower side walls 14 and 15.
  • a connecting strip 16 connects to the rear wall 13 and is to be connected to the inside of the outer side wall 15 in order to form the folding box .
  • the end faces of the folding box are formed by folding tabs. These are each side flaps 17 and 18 in the area of the associated side walls 14, 15 and a closing flap 19 which on one side faces the front wall 12 and on the other side, in the direction of transport of the web 11, to the front Rear wall 13 connects.
  • the closing flap 19 consists of a top wall 20 in the dimensions of the end face of the folding box and a closing tongue 21 attached to the free side of the top wall 20.
  • the top wall 20 forms the outer, full-surface covering of the two end faces of the folding box, while the folded closing tongue 21 into one Gap is inserted, which arises on the inside of the front wall 12 or rear wall 13 in the finished folding box.
  • an edge 22 of the front wall 12 and the rear wall 13 opposite the locking flap 19 is free of locking flaps.
  • the closing flaps 19, on the one hand, and two abutting side flaps 17, 18 of adjacent blanks 10 are dimensioned such that they fill a material strip 23 formed between the box walls 12, 13, 14 and 15 successive blanks 10 in the longitudinal direction.
  • the blanks 10 are thereby arranged in a material-saving manner within the web 11.
  • the closing flap 19 is delimited in the area of the top wall 20 by lateral cutting lines 24 and 25, which extend in the longitudinal direction of the web 11, as a continuation of the lateral delimitation of the front wall 12 or rear wall 13.
  • the cutting lines 24, 25 are in the present case slightly bent and formed converging.
  • the top wall 20 is as wide as the adjoining front or rear wall 12, 13.
  • the side tabs 17 and 18 are formed in the predominant partial area with a smaller width than the adjacent side walls 14, 15.
  • the side tabs 17, 18 are delimited by angled cutting lines 26 and 27.
  • these narrower side flaps 17, 18 are of the same width as the associated side walls 14, 15.
  • In the region of the material strip 23 there are accordingly folding flaps 17, 18, 19 of adjacent or successive blanks 10.
  • Die Dimension of locking tabs 19 including locking tongue 21 corresponds to the width of the material strip 23.
  • the side tabs 17 and 18 correspond to half the width of the material strip 23, so that the side tabs 17, 18 of adjacent blanks 10 abut one another. When a blank 10 is severed, corresponding corresponding folding flaps are thereby exposed at the same time.
  • the design of the folding tabs 17 .. 19 creates waste pieces 28, 29, 30, 31 and 32 made of packaging material of different shapes and sizes.
  • cross-cutting lines 33 are provided in the area of the closing tabs 19 and further cross-cutting lines 34 in the area of the side tabs 17, 18, the latter approximately in the middle in the material strip 23.
  • the latter cutting lines 33 and 34 are designed so that narrow residual connections 35 and 36 remain between the adjacent blanks 10 or between the respective front blank 10 and the subsequent material web.
  • the described surface areas of the blank for the formation of walls and flaps are delimited by embossed longitudinal fold lines 37 and transverse fold lines 38. These fold lines 37, 38 are groove-like embossments.
  • the separating cuts namely cutting lines 24, 27 and 33, 34, as well as folding lines 37, 38 are made during the uninterrupted transport of the web 11, in particular during a continuous conveying thereof.
  • Cutting lines and / or folding lines are applied in successive steps, according to a special concept.
  • the web 11 passes through several work stations, namely a first embossing station 39 for attaching the longitudinal fold lines 37, then a second embossing station 40 for attaching the transverse fold lines 38. It then follows a first cutting station 41 for applying a certain number of selected cutting lines and a second cutting station 42 for applying further, namely the remaining cutting lines.
  • the web 11 then passes through a waste removal station 43. In the region of a separation station 44, the blanks 10 are finally separated from the subsequent web 11 one after the other, namely torn off.
  • the above work stations are formed by pairs of rollers in the embodiment of the device shown.
  • the web 11 is moved on a (horizontal) conveyor track and is moved between opposing upper and lower rollers.
  • a first pair of rollers consists of an upper and lower pulling roller 45 and 46, respectively. These are driven in rotation and provide the feed of the web 11 while determining the conveying speed.
  • a subsequent pair of rollers in the area of the first embossing station 39 consists of an (upper) embossing roller 47 and a lower counter-roller 48.
  • the embossing roller 47 is provided on the circumferential surface with embossing ribs 49 which extend in the circumferential direction, namely two groups of such spaced-apart circumferentially Embossing ribs 49, so that two groups of longitudinal fold lines 37 are attached per revolution of the embossing roller 47.
  • the embossing ribs 49 are each arranged at an axial distance from one another.
  • an image corresponding to FIG. 5 is thus produced with fold lines 37 running only in the longitudinal direction.
  • the counter roller 48 is provided in the region of the embossing ribs 49 with corresponding grooves 50, likewise in two groups distributed along the circumference.
  • a further embossing roller 51 with counter roller 52 is arranged on both sides of the web 11 in the region of the embossing station 40.
  • the embossing roller here consists of two groups of embossing ribs 53 extending in the axial direction. These are also arranged in such a way that transverse fold lines 38 of two blanks 10 are applied when the embossing roller 51 is rotated fully. After passing through this embossing station 40, the transverse folding lines 38 according to FIG. 6 are also arranged.
  • the counter roller 52 is formed in the region of the embossing ribs 53 with corresponding grooves 54 pointing in the axial direction, likewise in two groups.
  • the cutting lines 24 and 25 shown in FIG. 7 are applied for the lateral limitation of the two locking tabs 19.
  • a (lower) cutting roller 55 and an (upper) counter roller 56 are provided.
  • the cutting roller 55 is provided on the circumferential surface with two groups of projecting cutting knives 57, which correspond in design and size to the cutting lines 24 and 25 to be attached.
  • the cutting knives 57 interact with the smooth-surface counter roller 56. The latter creates the necessary back pressure when cutting.
  • a (lower) cutting roller 58 and an (upper) counter roller 59 are also arranged opposite one another.
  • the cutting roller 58 has a number of cutting knives 60 arranged in two groups in the dimensions, arrangement and design of the cutting lines 26 and 27 on the one hand and the transverse cutting lines 33 and 34 on the other hand. Accordingly, the necessary separating cuts are completed in the cutting station 42, as shown in FIG. 8. Except for the remaining connections 35, 36, the adjacent cuts 10 are separated from one another by cutting lines.
  • the waste disposal station 43 which is also equipped with two opposing rollers, namely a squeezing roller 61 (top) and a suction roller 62 (bottom).
  • the squeezing roller 61 is provided on its outer surface with ridges 63, namely in two groups arranged circumferentially apart from one another.
  • the elevations 63 correspond in their arrangement, design and size to the pieces of waste 28..32.
  • the suction roller 62 is connected to an air pressure source. Compressed air is conveyed into the interior of the suction roller 62 via a hollow shaft 66.
  • the end face 67 of the hollow suction roller 62 opposite the hollow shaft 66 arranged on one side is open, so that the waste pieces 28 ... 32 are blown off here.
  • the blanks 10 freed from the waste pieces 28, 32 are separated from the subsequent web 11 in the area of the separation station 44, specifically by pulling rollers 68, 69, which are driven at a slightly higher speed than the roller pairs described above and thus as the web 11.
  • the speed difference causes the break in the area of the remaining connections 35, 36.
  • All of the roller pairs described are driven centrally by a motor (not shown in detail) via a main drive shaft 70. This is directly assigned to the (lower) pull roller 46.
  • an intermediate drive shaft 71 is driven via a gear transmission 72.
  • the main drive shaft 70 is assigned an actuating gear 78, by means of which predetermined position differences or those which arise during operation are compensated for between the web 11 on the one hand and the roller pairs on the other.
  • the web 11 is provided with printing marks 76 arranged at regular intervals from one another. In the present case, these are arranged in the region of the side tab 18.
  • a photocell 77 installed stationary over the web 11 scans the print marks 76. Any differences in position are perceived by the photocell 77 and fed to the actuating gear 78.
  • a servomotor 79 which can be driven on the left and right and which is connected to the photocell 77 acts on a setting wheel 80 which is rotatably mounted on the main drive shaft 70.
  • the adjusting wheel 80 is provided with an off-center pin 81 on which a double gear 82 is rotatably mounted.
  • Single gears 83 and 84 equipped with different numbers of teeth - z. B. 48 or 50 teeth - are in engagement with counter gears 85 and 86 on the main drive shaft 70. That with the larger number of teeth - z. B. with 50 teeth - equipped counter gear 85 sits firmly on the main drive shaft 70, while the second counter gear 86 - for example with 48 teeth - is connected to the actual pull roller 46 and is rotatably mounted on the main drive shaft 70. Counter gear 86 and pull roller 46 are connected to each other.
  • the drive is accordingly transmitted from the main drive shaft 70 via the first counter gear 85 to the first single gear 83 of the double gear 82, from there to the second single gear 84 and then to the counter gear 86.
  • Slight adjustments of the adjusting wheel 80 triggered by the servomotor 79, cause an adjustment of the pulling rollers 45, 46 responsible for the feed and thus a correction of any relative positions.
  • the actuating gear 78 acts exclusively on the pull rollers 45, 46. Adjustment movements of the pull rollers 45, 46 in the sense of an additional feed or a slight deceleration of the web 11 are accordingly not transmitted to the roller pairs of the work stations.
  • the required adjustments of the pulling rollers 45, 46 in one direction or the other take place during the transport of the web 11 and while the pairs of rollers in the work stations remain unchanged.
  • the adjustment of the pull rollers 45, 46 can have a slight advance or a slight delay, depending on the displacements sensed in the relative position of the web 11. With a corresponding engagement position of the roller pairs in the work stations, this can result in the web 11 being slightly compressed or stretched in the region between the pull rollers 45, 46 and the embossing station 39.
  • the pairs of rollers in the work stations are designed such that segments 87, 88, 89, 90 and 91 on at least one of the work areas on the circumference of the rollers (embossing ribs, grooves, cutting knife) Rolls of a pair of rollers are formed, in the area of which the web 11 is conveyed without contact or drive.
  • the rollers in question are free from organs (elevations, etc.) which come into contact or contact with the web 11.
  • the roller pairs are adjusted in their relative position to each other so that work cycles (embossing, cutting, pressing out pieces of waste) always take place simultaneously for all workstations. Accordingly, segments 87..91 for web 11 also come into effect at the same time, so that a slight advance or a slight backward displacement become effective as soon as segments 87..91 lie opposite web 11.
  • the web 11 is conveyed between stationary top guides 92 and underpasses 93.

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Claims (18)

1. Procédé de fabrication de flans (10) pour emballages (cartons et cartonnages pliants etc...) en papier, carton ou analogue, par séparation d'une bande (11) de matière d'emballage, les flans (10) étant séparés de la bande, pendant le déplacement de la bande (11), en particulier à vitesse constante, caractérisé par le fait que chaque flan (10) est séparé de la bande (11) par plusieurs coupes partielles successives (24, 25 d'une part et 26, 27 d'autre part), qui forment des chutes (29, 30, 31) entre pattes pliage, disposées comme des dents, de flans voisins (10) et chanque chute (29, 30, 31) étant délimitée par une des coupes partielles successives (24, 25 d'une part, et 26, 27 d'autre part).
2. Procédé selon la revendication 1, caractérisé par le fait que les flans (10) sont séparés, par estampage ou découpage, de la bande jusqu'à des liaisons résiduelles (35) qui sont détachées par déchirure.
3. Procédé selon la revendication 1, caractérisé par le fait que les liaisons résiduelles (35) sont détachées par accélération (locale) de la bande (11).
4. Procédé selon la revendication 2 ou 3, caractérisé par le fait que les coupes transversales (33, 34), avec formation des liaisons résiduelles, sont effectuées au deuxième temps des coupes.
5. Procédé selon l'une ou plusieurs des revendications 1 à 4, caractérisé par le fait que pendant le déplacement de la bande (11), des lignes de pliage (37, 38), pour limiter les parois de l'emballage, sont effectuées par repoussage.
6. Procédé selon la revendication 5, caractérisé par le fait que les lignes de pliage (37, 38) sont effecuées à des étapes de travail successives, en particulier, en effectuant pendant une première étape les lignes de pliage, dirigées dans le sens longitudinal de la bande (11) et pendant une seconde étape les lignes de pliage dirigées transversalement.
7. Procédé selon la revendication 5 ou 6, caractérisé par le fait que l'application des coupes ainisi que celle des lignes de pliage (37, 38) s'effectue au voisinage de postes de travail prévus à cet effet.
8. Appareil pour la mise en oeuvre du procédé selon l'une ou plusieurs des revendications 1 à 7, avec postes de repoussage (39, 40) et de coupe (41,42) qui comportent des cylindres de repoussage (47,48; 51, 52) et de coupe (55, 56; 58, 59) disposés par paires, entre lesquels peut passer la bande (11) en matière d'emballage en formant les flans (10), caractérisé par le fait que le poste de coupe est subdivisé en un premier (41) et un second (42) poste de coupe, le premier poste (41) suivant le poste de repoussage (39,40) et les premières coupes partielles (24, 25) opérant pour délimiter latéralement les chutes (29, 30, 31) formées entre les pattes de pliage (17, 18, 20), disposées comme des dents, des flans (10) voisins, tandis qu'au second poste de coupe (42) les secondes coupes partielles (26, 27) peuvent être effectuées pour limiter latéralement les chutes (29, 30, 31).
9. Appareil selon la revendication 8, caractérisé par le fait qu'à la suite du deuxième poste de coupe (42), au voisinage d'un poste d'alimentation de chutes (43), les chutes (28... 32) sont expulsables du plan de la bande (11) par un outil de forme et entrainables par de l'air d'aspiration ou de pression.
10. Appareil selon la revendication 9, caractérisé par le fait que les chutes (28... 32) sont expulsables, vers le bas, de leur position dans le plan de la bande (11) par un cylindre (supérieur) expulseur (61) dans un cylindre aspirant (62) en forme de cylindre creux, le cylindre expulseur (61) étant muni de renflements correspondant à la forme des chutes (28... 32) et le cylindre aspirant (62) d'évidements correspondants.
11. Appareil selon la revendication 10, caractérisé par le fait que le cylindre aspirant (62) est un cylindre creux à travers lequel on peut faire passer en direction axiale de l'air sous pression amené par un arbre creux (66) et entraînant les chutes (28 ... 32) par une face frontale ouverte (67) du cylindre aspirant (62).
12. Appareil selon l'une ou plusieurs des revendications 8 à 11, caractérisé par le fait que le poste de repoussage est subdivisé en un premier (39) et un second (40) poste de repoussage, une première paire de cylindres étant au voisinage du premier poste de repoussage, agencée en cylindres de repoussage, en particulier avec un cylindre de repoussage (supérieur) (47) et un contre-cylindre (inférieur) (48), des organes de repoussage (nervures de repoussage 49) étant disposés de manière qu'au voisinage du premier poste de repoussage (39) soient réalisables des lignes de pliage (37) s'étendant uniquement en direction longitudinale et qu'au second poste de repoussage suivant (40) un cylindre de repoussage (51) et un contre-cylindre (52) soient agencés ou soient munis de nervures de repoussage de manière que soient réalisables des lignes de pliage (38) uniquement dirigées transversalement.
13. Appareil selon la revendication 12, caractérisé par le fait que les contre-cylindres (48, 52) sont munis de rainures (50, 54) qui correspondent au nervures de repoussage (49, 53).
14. Appareil selon la revendication 2, caractérisé par le fait que les cylindre des postes de repoussage (39,40) sont écartés l'un de l'autre d'une distance qui correspond à au moins la longueur des lignes de pliage (37) s'étendant en direction longitudinale.
15. Appareil selon l'une ou pluiseurs des revendications 8 à 14, caractérisé par le fait qu'à la suite des postes de coupe (41,42) ou du poste d'élimination des chutes (43), se trouve un poste de séparation (44) pour séparer les flans (10) de la bande (11) par déchirage des liaisons résiduelles (35, 36), le poste de séparation (44) étant constitué d'au moins deux cylindres tracteurs (68, 69) coopérants qui sont entraînés à une vitesse plus grande que la vitesse d'entraînement de la bande (11).
16. Appareil selon l'une ou plusieurs des revendications 8 à 15, caractérisé par le fait que les cylindres définissant les postes de repoussage et de coupe sont munis d'une pluralité, en particulier deux groupes, d'outils (nervures de repoussage, rainures, couteaux, renflements, évidements, qui sont distribués, à égales distances les uns des autres, le long de la périphérie des cylindres, des segments (87, 88, 89, 90, 91) étant formés, entre les outils existants sur le cylindres dans la zone desquels la bande (11) est entrainable sans contact avec les cylindres, et les processus de travail étant en outre exécutables simultanément dans tous les postes de travail (39, 40, 41, 42, 43).
17. Appareil selon l'une ou plusieurs des revendications 8 à 16, caractérisé par le fait qu'avant les postes de travail (39... 44) est disposé un couple de cylindres de traction (45, 46) en tant qu'organes d'entraînement de la bande (11) en prise permanente, et l'entraînement des cylindres de traction (45,46) étant transmise aux cylindres des postes de travail suivants (39 ... 44) par un arbre d'entraînement principal (70).
18. Appareil selon la revendication 17, caractérisé par le fait que la commande d'entraînement (continue) de la bande (11) est réglable, au voisinage des cylindres de traction (45, 46) pour ajuster la position relative de la bande (11), en particulier au moyen d'un mécanisme de réglage (78) agissant sur les cylindres de traction (45,46) et commandable par un dispositif de surveillance explorant la position de la bande (11), notammment par cellule photoélectrique (77) en liaison avec une empreinte (76) sur la bande (11).
EP85116139A 1985-01-10 1985-12-18 Procédé et dispositif de fabrication de flans d'emballages Expired EP0187323B1 (fr)

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DE19853500547 DE3500547A1 (de) 1985-01-10 1985-01-10 Verfahren und vorrichtung zum herstellen von zuschnitten fuer verpackungen
DE3500547 1985-01-10

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EP0187323B1 true EP0187323B1 (fr) 1988-06-08

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US (1) US4715847A (fr)
EP (1) EP0187323B1 (fr)
JP (1) JP2506329B2 (fr)
BR (1) BR8600079A (fr)
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DE (2) DE3500547A1 (fr)

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DE4401268C2 (de) * 1994-01-18 1998-04-23 Windmoeller & Hoelscher Verfahren und Vorrichtung zur Herstellung von Verpackungen für flüssige Güter
EP2755892B1 (fr) * 2011-09-16 2017-08-02 Focke & Co. (GmbH & Co.) Procédé et dispositif de fabrication de paquets de cigarettes

Also Published As

Publication number Publication date
DE3500547A1 (de) 1986-07-10
DE3563179D1 (en) 1988-07-14
EP0187323A1 (fr) 1986-07-16
CA1259841A (fr) 1989-09-26
JP2506329B2 (ja) 1996-06-12
JPS61163839A (ja) 1986-07-24
BR8600079A (pt) 1986-09-23
US4715847A (en) 1987-12-29

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