EP0326573B1 - Appareil a fabriquer des boites en carton et procede - Google Patents

Appareil a fabriquer des boites en carton et procede Download PDF

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Publication number
EP0326573B1
EP0326573B1 EP87906827A EP87906827A EP0326573B1 EP 0326573 B1 EP0326573 B1 EP 0326573B1 EP 87906827 A EP87906827 A EP 87906827A EP 87906827 A EP87906827 A EP 87906827A EP 0326573 B1 EP0326573 B1 EP 0326573B1
Authority
EP
European Patent Office
Prior art keywords
blank
blanks
thickness
edge portions
liners
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
EP87906827A
Other languages
German (de)
English (en)
Other versions
EP0326573A1 (fr
Inventor
Colin Stutt
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.)
LANGSTON EUROPE Ltd
Original Assignee
LANGSTON EUROPE 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 LANGSTON EUROPE Ltd filed Critical LANGSTON EUROPE Ltd
Priority to AT87906827T priority Critical patent/ATE91460T1/de
Publication of EP0326573A1 publication Critical patent/EP0326573A1/fr
Application granted granted Critical
Publication of EP0326573B1 publication Critical patent/EP0326573B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B31F7/00—Processes not otherwise provided for
    • B31F7/006—Processes not otherwise provided for edges, e.g. sheet edges
    • 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
    • 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

Definitions

  • box blanks are folded along pre-formed crease lines and opposite ends of the blanks are stuck together in overlapped relationship, so as to form a flat tube.
  • a problem that then arises is that when those flat tubes are stacked one on top of another, the overlapped portions, being of double thickness, cause the stack to be uneven in height.
  • the box blanks are prepared by feeding each blank, along a feed path parallel to the above-mentioned edge portions, past first cutting means which cut through opposite liners at the respective edge portions to delineate the area of each edge portion which will be reduced in thickness, and past disc knives having their cutting edges substantially parallel to the blanks to cut away the required parts of the liners and adjacent corrugated medium as the blank moves along the feed path.
  • first cutting means which cut through opposite liners at the respective edge portions to delineate the area of each edge portion which will be reduced in thickness
  • past disc knives having their cutting edges substantially parallel to the blanks to cut away the required parts of the liners and adjacent corrugated medium as the blank moves along the feed path.
  • 2 is a box blank made from double faced corrugated board consisting of a single layer C of corrugated medium sandwiched between two flat outer lines L1, L2.
  • the blank has parallel score lines 4 and 6 extending between the blank edges 8 and 10; opposed pairs of transverse slots 11, 12, 14 and 16 extending between the score lines and the blank edges 18, 20; and score lines 21, 22, 24 and 26 aligned with and extending between respective slots 11, 12, 14 and 16.
  • Flaps 28 and 30 (the edge portions of this invention) extend respectively from the edges 8 and 10, the flaps being reduced in thickness over their whole areas, from opposite faces of the blank, as shown in Figure 2, at each end of the blank.
  • the blank 2 is then folded, in known manner, along crease lines 21, 22, 24 and 26 to form the blank into a flat tube so that the remaining parts of flaps 28 and 30 overlap, and are stuck to, the opposite ends of the blank, as shown in Figure 3.
  • FIG. 4 Box blanks are fed in the direction of the arrow A in Figure 4 from printing and slotting apparatus (not shown) of any known form, one at a time and spaced apart in the direction of feed.
  • the blanks are as described above except that, at this stage, the flaps 8, 10 have not been reduced in thickness, and thus are as shown in dotted lines at B in Figure 2.
  • Each blank, lying flat, is fed with the liner L1 uppermost and edge 18 leading, towards two pairs of belts which are spaced apart across the width of the blank so that the edges 8, 10 extend beyond the belts.
  • Each pair of belts consists of respective upper and lower belts 32 and 34 between adjacent runs of which a blank is gripped and fed along a feed path defined by the adjacent runs of the belts, the belts extending between respective pulleys 36,38 ( Figure 4).
  • the flaps 28, 30 Whilst a blank is being fed by the belts 32, 34 the flaps 28, 30 are reduced in thickness over their whole areas by cutting away one of the liners L1, L2 and substantially the whole of the layer C, by means of respective cutting units indicated generally at 40 and 42.
  • the units 40, 42 are very similar, in the following description the same reference number will be used for like parts in both units but with 100 added to the parts of unit 42.
  • Each unit 40, 42 consists of a first circular cutter 44, 144 fixed on a shaft 46, 146 and, downstream therefrom, a second circular cutter 48, 148 fixed on a shaft 50, 150.
  • the shafts 46, 50 and 146, 150 are driven by means of respective belts 52, 54 and 152, 154 from motors 56, 156, so that the peripheral speed of the cutters 44, 144, 48, 148 is 10 to 12 times faster than the speed at which the blanks are fed by the belts 32, 34, with all the cutters rotating in a vertical plane.
  • the cutters 44, 48 rotate in an anti-clockwise direction, and the cutters 144, 148 rotate in a clockwise direction.
  • the shafts 46, 50 are mounted so that the cutters 44, 48 are positioned below the feed path of the blanks and the shafts 146, 150 are mounted so that the cutters 144, 148 are positioned above the feed path.
  • Each cutter is provided with a number of cutting edges 58 in a similar manner to that of a milling cutter.
  • a respective suction box 60, 61 having slots 62, 63 in their bottom sides (see Figures 6 and 7) and to which suction is applied through pipes 64, 65.
  • a respective section box 90, 92 having slots 94, 96 in their top sides and to which suction is applied through pipes 98, 100.
  • a fixed plate 66 is positioned as shown in Figures 4, 5 to help support the blank near the edge 8 thereof, and a further fixed plate 68 supports the edge 10 of the blank.
  • the apparatus After having printing and slotting operations performed on it, the blank is fed towards the cutters 44, 144. The latter are positioned so that when they engage the respective flaps 28, 30, they do so in line with the edges 8, 10 of the blank. Just prior to the flap 8 engaging the cutter 44, suction is applied through the slot 62 so as to hold the flap flat as it passes the cutter. On engaging with the leading end of the flap 28 the cutter starts to cut through the bottom liner L2 and also the corrugated liner C, leaving the top liner L1 uncut, as shown in Figure 6.
  • the cutter 44 makes a narrow cut 70 (the cutter may be, for example, 3mm wide) along the blank, at the base of the flap 28, in line with the edge 8.
  • the cutter 44 makes a narrow cut 70 (the cutter may be, for example, 3mm wide) along the blank, at the base of the flap 28, in line with the edge 8.
  • the cutter 144 makes a similar cut 72 at the base of the flap 30, in line with the edge 10 of the blank. However, in this case, as it is positioned above the blank, the cutter 144 cuts through the top liner L1 and also the corrugated layer C, leaving the bottom liner L2 uncut. The area of flap 30 to be reduced in thickness is thus delineated from the rest of the blank by the cut 72. Whilst the latter is being made, the flap 30 is held flat by suction applied to the suction box 90.
  • the flap 28 engages the cutter 48 which progressively removes the remaining portions of the liner L2 and the corrugated layer C from that flap.
  • the flap 28 is held against the bottom of the box 61 by suction applied through the slot 63.
  • the cutter 148 removes the remaining portions of the liner L1 and the corrugated layer C from the flap 30, with the flap being held flat by suction applied to the suction box 92.
  • the flaps 28, 30 pass out of engagement with the respective cutters 48, 148, the flaps 28, 30 comprise only the liners L1 and L2 respectively.
  • the waste material removed by the cutters 44, 48 is guided by baffle plates 74 ( Figure 4) so that it falls into a trough 76 and is carried away for disposal.
  • the trough 76 may be vibrated, or may form part of any suitable type of air conveyor.
  • a similar trough (not shown) is provided to collect waste material removed by the cutters 144, 148.
  • the waste material may be removed by means of suction pipes (not shown) positioned adjacent the cutters, as is well known in the box making industry.
  • the blank After passing away from the cutters 48, 148 the blank is fed to further apparatus (not shown) which forms the blank into a flat tube, as described above.
  • FIG 8 illustrates a modification of the apparatus in accordance with the present invention.
  • the cutter 144 is replaced by a disc knife 77 fixed on the shaft 146
  • the cutter 148 is replaced by a disc knife 78 fixed on a shaft 80 mounted at right angles to the shaft 146 so that the knife 78 rotates in a horizontal plane parallel to the blank.
  • the knife 77 makes a cut in the same position as the narrow cut 72 described above, and the knife 78 cuts through the corrugated layer C forming the flap 30 parallel to the liner L2 and as close to that liner as possible without damaging it.
  • the knife 78 extends into the cut made by the knife 77, so that when the flap 30 passes away from the knife 78 the waste material is removed in one piece in any suitable way.
  • the cutter 48 shown in Figure 7 is similarly replaced, in accordance with this invention, with a disc knife.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)

Abstract

Avant l'assemblage des boîtes réalisées à partir d'ébauches de carton ondulé constitué d'au moins une couche de support ondulé prise en sandwich entre deux revêtements extérieurs, on réduit l'épaisseur de la zone de chevauchement de chaque ébauche au niveau de chaque côté en faisant passer les ébauches (L1) successivement dans des moyens de coupe comportant un premier couteau (44; 144) destiné à couper à travers une couche extérieure de chaque ébauche pour esquisser une zone définie qui chevauchera une zone similaire au niveau d'un bord opposé de l'ébauche lorsque celle-ci sera assemblée pour en faire une boîte, et un second couteau (48; 148) destiné à enlever pratiquement l'épaisseur totale du carton ondulé sur ladite zone définie.

Claims (2)

  1. Procédé de fabrication d'ébauches de boîtes en carton ondulé, en vue de former des boîtes pliées à plat dans lesquelles des portions de bord se recouvrant, adhérant l'une à l'autre possèdent chacune une partie d'un garnissage et la partie adjacente du milieu ondulé enlevé par découpe de manière que le garnissage restant de chaque portion de bord soit recouvert par une partie de pleine épaisseur de l'autre portion de bord de l'ébauche, caractérisé en ce que les ébauches de boîtes (2) sont préparées en délivrant chaque ébauche le long d'une trajectoire parallèle auxdites portions de bords (28, 30), devant des premiers moyens de coupe (77) qui découpent au travers des garnissages opposés sur les portions de bords respectives afin de dégarnir les zones de chaque portion de bord dont l'épaisseur doit être réduite et des couteaux en forme de disque (78) dont les arêtes coupantes sont sensiblement parallèles à l'ébauche pour enlever par découpe les parties nécessaires des garnissages et le milieu ondulé adjacent lorsque l'ébauche se déplace le long de la trajectoire de délivrance.
  2. Appareil pour réaliser des ébauches de boîtes en carton ondulé utilisé pour réaliser des boîtes pliées à plat dans lesquelles les portions de bord se recouvrent, adhérant l'une à l'autre possèdent chacune une partie d'un garnissage et la partie adjacente du milieu ondulé enlevé par découpe de manière que le garnissage restant de chaque portion de bord soit recouvert par une partie de pleine épaisseur de l'ébauche, caractérisé par des moyens (32, 34, 36, 38) pour transporter des ébauches successives (2) le long d'une trajectoire d'alimentation s'étendant devant des premiers moyens de coupe (77), conçus de façon à découper au travers des garnissages opposés des portions de bord respectives (28, 30) de l'ébauche, pour dégarnir les zones des portions de bord dont l'épaisseur doit être réduite, et devant des seconds moyens de coupe (78), réalisés selon des couteaux en forme de disques dont les arêtes coupantes sont sensiblement parallèles aux ébauches, pour enlever par découpe les parties nécessaires des garnissages et le milieu ondulé adjacent de chaque ébauche lorsqu'elle se déplace le long de la trajectoire d'alimentation.
EP87906827A 1986-10-04 1987-10-05 Appareil a fabriquer des boites en carton et procede Expired - Lifetime EP0326573B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87906827T ATE91460T1 (de) 1986-10-04 1987-10-05 Schachtelfertigungsapparat.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8623896 1986-10-04
GB868623896A GB8623896D0 (en) 1986-10-04 1986-10-04 Box making apparatus

Publications (2)

Publication Number Publication Date
EP0326573A1 EP0326573A1 (fr) 1989-08-09
EP0326573B1 true EP0326573B1 (fr) 1993-07-14

Family

ID=10605294

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87906827A Expired - Lifetime EP0326573B1 (fr) 1986-10-04 1987-10-05 Appareil a fabriquer des boites en carton et procede

Country Status (6)

Country Link
EP (1) EP0326573B1 (fr)
JP (1) JPH02500828A (fr)
DE (1) DE3786557T2 (fr)
FI (1) FI92568C (fr)
GB (1) GB8623896D0 (fr)
WO (1) WO1988002306A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7455214B2 (en) 2006-04-13 2008-11-25 Henkel Corporation Adjustable volume storage container

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE504233C2 (sv) * 1995-04-12 1996-12-09 Sunds Defibrator Ind Ab Sätt och anordning för framställning av emballageark försedda med ett stort antal upphöjningar fördelade över arket

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US325827A (en) * 1885-09-08 Mals feiede

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1050169B (fr) * 1959-02-05
US1430287A (en) * 1919-12-24 1922-09-26 Charles H Crowell Container
GB384794A (en) * 1931-07-16 1932-12-15 Diagonal Corrugated Patent Cor Improvements in cartons and method of making the same
US3254827A (en) * 1963-12-20 1966-06-07 Corning Glass Works Manufacturer's joint
US3604317A (en) * 1969-02-03 1971-09-14 Ex Cell O Corp Skiving machine device and method of preparing a protected paperboard side seam
US3635451A (en) * 1969-05-16 1972-01-18 Westvaco Corp Corrugated paper board container having sealed fluted closure flaps
FR2110721A5 (fr) * 1970-10-28 1972-06-02 Giraudet Cartonnages Sa
GB2014510B (en) * 1977-12-30 1982-06-03 Kohmann Gmbh Co Maschbau Production of packaging sleeves
US4540391A (en) * 1982-12-06 1985-09-10 International Paper Company Method and apparatus for skiving and hemming
FR2588505A1 (fr) * 1985-10-14 1987-04-17 Allard Sarl Procede d'assemblage recto-verso, sans surepaisseur, de deux parois ou parties de parois d'un emballage realise a partir d'un flan unique ou de plusieurs flans de carton ondule et emballage realise par ledit procede

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US325827A (en) * 1885-09-08 Mals feiede

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7455214B2 (en) 2006-04-13 2008-11-25 Henkel Corporation Adjustable volume storage container

Also Published As

Publication number Publication date
DE3786557T2 (de) 1993-12-23
FI92568C (fi) 1994-12-12
FI891589A (fi) 1989-04-03
DE3786557D1 (de) 1993-08-19
GB8623896D0 (en) 1986-11-05
FI891589A0 (fi) 1989-04-03
JPH02500828A (ja) 1990-03-22
WO1988002306A1 (fr) 1988-04-07
FI92568B (fi) 1994-08-31
EP0326573A1 (fr) 1989-08-09

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