EP3176097A1 - Blank supply device and blank supply method using same - Google Patents
Blank supply device and blank supply method using same Download PDFInfo
- Publication number
- EP3176097A1 EP3176097A1 EP15836822.5A EP15836822A EP3176097A1 EP 3176097 A1 EP3176097 A1 EP 3176097A1 EP 15836822 A EP15836822 A EP 15836822A EP 3176097 A1 EP3176097 A1 EP 3176097A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- blank
- folding
- supply apparatus
- preliminary
- box
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 21
- 238000012546 transfer Methods 0.000 claims abstract description 82
- 238000003825 pressing Methods 0.000 claims abstract description 70
- 238000004806 packaging method and process Methods 0.000 claims abstract description 19
- 238000005452 bending Methods 0.000 claims abstract description 7
- 238000005520 cutting process Methods 0.000 claims description 30
- 230000000994 depressogenic effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 description 15
- 238000013461 design Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000002950 deficient Effects 0.000 description 4
- 235000019504 cigarettes Nutrition 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000004049 embossing Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Images
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
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
- B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
- B65B43/14—Feeding individual bags or carton blanks from piles or magazines
- B65B43/22—Feeding individual bags or carton blanks from piles or magazines by rollers
- B65B43/225—Feeding individual bags or carton blanks from piles or magazines by rollers specially adapted for carton 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
- B31B50/25—Surface scoring
- B31B50/256—Surface scoring 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
- B31B50/26—Folding sheets, blanks or webs
-
- 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
- B31B50/26—Folding sheets, blanks or webs
- B31B50/28—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms
-
- 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
- B65B19/00—Packaging rod-shaped or tubular articles susceptible to damage by abrasion or pressure, e.g. cigarettes, cigars, macaroni, spaghetti, drinking straws or welding electrodes
- B65B19/02—Packaging cigarettes
- B65B19/22—Wrapping the cigarettes; Packaging the cigarettes in containers formed by folding wrapping material around formers
-
- 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
- B65B19/00—Packaging rod-shaped or tubular articles susceptible to damage by abrasion or pressure, e.g. cigarettes, cigars, macaroni, spaghetti, drinking straws or welding electrodes
- B65B19/02—Packaging cigarettes
- B65B19/22—Wrapping the cigarettes; Packaging the cigarettes in containers formed by folding wrapping material around formers
- B65B19/228—Preparing and feeding blanks
-
- 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
- B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
- B65B43/08—Forming three-dimensional containers from sheet material
- B65B43/10—Forming three-dimensional containers from sheet material by folding the material
-
- 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
- B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
- B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
- B65B43/14—Feeding individual bags or carton blanks from piles or magazines
- B65B43/22—Feeding individual bags or carton blanks from piles or magazines by rollers
-
- 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
- B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
- B65B61/02—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for perforating, scoring, slitting, or applying code or date marks on material prior to packaging
-
- 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
- B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
- B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
- B65B61/06—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting
Definitions
- the present invention relates to a blank supply apparatus and a blank supply method using the blank supply apparatus, and more particularly, to a supply apparatus adapted to supply blank used to form package boxes such as hinged-lid packages of cigarettes to a packaging machine as well as a blank supply method using the supply apparatus.
- Patent Document 1 discloses a package production apparatus for printing a material web according to a package design cutting off blank from the material web, and performing stamping and embossing on the blank.
- Patent Document 1 International Publication WO 2013/037463 Pamphlet
- Some package boxes are configured such that square edges along a longitudinal direction of the boxes are shaped in the form of round edges. To produce such a box, it is necessary to create folding lines in regions of the round edges of the blank used to form the box and perform preliminary process during forming.
- processing of spread blank before folding has been entrusted to a printer who prints on the blank.
- the printer prints on material web before the material web is separated into individual pieces of blank and performs, for example, platen-based stamping using a platen.
- the folding lines described above are also formed as pressure lines all at once by embossing and at the same time the material web is cut into individual pieces of blank.
- a preliminary folding step of giving fold geometries to the blank may be carried out by preliminarily folding the blank.
- the repulsive force of the blank tending to return to a pre-folding flat state is small especially when blank with a small paper thickness is used. Consequently, in the case of an inside flap in which a folding location of the blank is positioned on an inner side of the box, the inside flap assumes a posture of being inclined excessively toward the inner side of the box. This causes the inside flap to be spaced away from an outside flap located outside the box during forming of the box making it impossible to superimpose and properly bond the opposed flaps by gluing or the like, which might make the box and thus the package defective.
- the present invention has been made in view of the above problem and has an object to provide a blank supply apparatus and a blank supply method using the blank supply apparatus, where the apparatus and method can control folding geometries of blank, thereby reduce quality variations of the blank, and easily improve productivity and quality of a box and thus a package.
- an aspect of the present invention is directed to providing a blank supply apparatus adapted to supply blank used to form a box of a package to a packaging machine, the supply apparatus comprising: a transfer path adapted to transfer the blank piece by piece along a transfer surface by extending from a supply source of the blank to the packaging machine; and a pair of rollers rotatably placed on opposite sides of the transfer surface and provided with a pressing region on an outer circumferential surface to feed the blank while pressing a strip region of the blank corresponding to a square edge of the box, wherein one of the pair of rollers has a large number of blades in the pressing region, and when the blank passes between the pair of rollers, the blades form a large number of cut lines in the strip region of the blank to reduce bending strength of the strip region.
- a blank supply method is a method for supplying blank used to form a box of a package to a packaging machine, the method comprising a cutting step of forming a large number of cut lines in the strip region of the blank to reduce bending strength of the strip region by transferring the blank piece by piece along a transfer surface from a supply source of the blank to a packaging machine while pressing a strip region of the blank corresponding to a square edge of the box.
- a blank supply apparatus and a blank supply method using the blank supply apparatus can control folding geometries of blank, and easily improve productivity and quality of blank, a box, and thus a package.
- FIG. 1 shows a side view of a making machine 2 of a hinged-lid package 1 (hereinafter referred to simply as a package 1), the making machine 2 being equipped with a blank supply apparatus according to a first embodiment of the present invention and FIG. 2 shows a plan view of the making machine 2.
- the making machine 2 includes a blank magazine (supply source) 4, a suction 6, a blank supply apparatus 8, a folding turret (packaging machine) 12 for a blank 10, and the like.
- FIG. 3 is a perspective view showing a box 14 of the package 1 according to the present embodiment.
- Four square edges 16 of the box 14 along a longitudinal direction of the box are shaped into round edges, and according to the present embodiment, each of the square edges 16 are made up of a series of planes sloped step-by-step.
- FIG. 4 is a plan view of non-folded, spread blank 10 used to form the box 14 of FIG. 3 , as viewed from a rear surface 18 which is to become an inner surface of the box 14.
- the blank 10 roughly includes a center section 20 in center and a pair of flap sections 22 formed on opposite sides of the center section 20.
- Each flap section 22 is made up of a group of inside flaps 22a disposed in a longitudinal center of the blank 10 and positioned inside the box 14 during forming of the box 14, a group of outside flaps 22b placed on opposite ends of the blank 10 in the longitudinal direction and positioned outside the box 13 during forming of the box 14.
- each inside flap 22a As shown in FIG. 4 and the inside and outside flaps 22a and 22b opposed to each other are glued together via the adhesive surfaces 22a1 during forming of the box 14.
- the blank 10 is formed to have strip regions 24 corresponding to the square edges 16 of the box 14. The strip regions 24 are formed in two places over the center section 20 and the paired flap sections 22, extending in parallel to a longitudinal axis of the blank 10 along the transfer path 26 (see FIGS. 1 and 2 ) provided on the supply apparatus 8.
- FIGS. 1 and 2 many pieces of blank 10 shown in FIG. 4 are stacked in a blank magazine 4.
- the blank 10 is sucked piece by piece out of a bottom of the blank magazine 4 by the suction 6 and drawn out in succession toward the supply apparatus 8.
- the supply apparatus 8 includes the transfer path 26, transfer rollers 28, 30, and 32, transfer disks 34 and 36, a preliminary folding station 38, and the like.
- the transfer path 26 extends from the blank magazine 4 to the preliminary folding station 38 and eventually to the folding turret 12 and transfers the blank 10 piece by piece along a transfer surface 40 of the transfer path 26 using the transfer rollers 28 and 30 and transfer disks 34 and 36.
- the transfer rollers 28 and 30 and transfer disks 34 and 36 are placed at appropriate intervals in such a way as to be able to transfer the blank 10 drawn out of the blank magazine 4 to the transfer path 26 and eventually to the folding turret 12 piece by piece in sequence.
- the transfer rollers 28 are made up of a pair of rollers 28a and 28b placed rotatably on opposite sides of the transfer surface 40.
- the pair of rollers 28a and 28b sandwiches the blank 10 while rotating at same peripheral velocity and transfer the blank 10 by feeding piece by piece along the transfer path 26.
- the transfer rollers 30 feed and transfer the blank 10 in a manner similar to the transfer rollers 28.
- the transfer disks 34 and 36 are rotatably placed on an upper side of the transfer surface 40, and as the blank 10 passes under the transfer disks 34 and 36, the transfer disks 34 and 36 transfer the blank 10 by extruding the blank 10 forward on the transfer path 26.
- FIG. 5 is a front view of the transfer rollers 30 as viewed from the side of a preliminary folding station 38.
- the transfer rollers 30 are placed immediately upstream of the preliminary folding station 38 and made up of a cutting roller 42 placed on an upper side of the transfer surface 40 and a carrier roller 44 placed under the transfer surface 40.
- the cutting roller 42 is equipped with a driving shaft 42b adapted to rotationally drive a roller body 42a in the direction of an arrow.
- a driving shaft 42b adapted to rotationally drive a roller body 42a in the direction of an arrow.
- strip-like pressing regions 46 are formed, respectively, at positions corresponding to the above-mentioned strip regions 24 of the blank 10.
- a large number of blades 48 are formed all around the outer circumferential surface 42c.
- Each of the blades 48 has a tip 48a along a circumferential direction of the outer circumferential surface 42c, the tip 48a of the blade 48 has been processed into an acute-angled V-shape, and the blades 48 are substantially equal in tip length.
- the roller body 42a and driving shaft 42b are detachably attached to each other with a bolt 50.
- the carrier roller 44 is equipped with a driving shaft 44b adapted to rotationally drive a roller body 44a in the direction of an arrow.
- a roller body 44a i.e., an outer circumferential surface 44c of the carrier roller 44
- strip-like pressing regions 52 are flatly formed, respectively, at positions corresponding to the regions 24 of the blank 10.
- the roller body 44a and driving shaft 44b are detachably attached to each other with a bolt 54.
- the blades 48 formed in the pressing regions 46 on the outer circumferential surface 42c of the cutting roller 42 protrude toward the pressing regions 52 on the outer circumferential surface 44c of the carrier roller 44 with a predetermined gap G provided therebetween.
- the driving shaft 42b of the cutting roller 42 and the driving shaft 44b of the carrier roller 44 are coupled to a gap adjustment apparatus 56.
- the gap adjustment apparatus 56 is configured to be able to adjust the gap G between the cutting roller 42 and carrier roller 44 by moving up and down the driving shafts 42b and 44b.
- FIG. 6 is a plan view of the blank 10 which has passed the transfer rollers 30, as viewed from a rear surface 18.
- the blank 10 passes between the pair of the cutting roller 42 and carrier roller 44, the blank 10 is fed by pressing the strip regions 24 of the blank 10 with the pressing regions 46 of the cutting roller 42 and pressing regions 52 of the carrier roller 44.
- the blades 48 cut into the rear surfaces 18 of the strip regions 24 by a predetermined depth along thickness of the blank 10 and thereby form a large number of cut lines 58 in the rear surfaces 18.
- the cut lines 58 extend in parallel to the longitudinal axis of the blank 10 thereby reduce thickness of the strip regions 24 of the blank 10, and thereby reduce bending strength of the strip regions 24.
- the gap G between the pair of the cutting roller 42 and carrier roller 44 is established according to depth of cut lines 58 required of the blank 10.
- FIG. 7 is an enlarged sectional view of part of the blank 10 with cut lines 58 formed therein.
- the gap G between the pair of the cutting roller 42 and carrier roller 44 is set to a range of, for example, 20% to 50% the thickness T (e.g., 0.25 mm to 0.35 mm) of the blank 10.
- a large number of cut lines 58 of a predetermined depth D in a range of, for example, 50% to 80% the thickness T of the blank 10 are formed in the blank 10, being shaped, for example, like an acute-angled valley (letter V).
- the preliminary folding station 38 is placed at a preliminary folding position on the transfer path 26, where the preliminary folding position is established immediately downstream of the transfer rollers 30, i.e., the pair of the cutting roller 42 and carrier roller 44.
- the preliminary folding station 38 preliminarily folds the strip regions 24 of the blank 10, and gives folding shapes corresponding to the round edges of the box 14, and more specifically preliminary folding angles, to the strip regions 24 as shown in FIG. 3 .
- FIG. 8 is a front view of the preliminary folding station 38 as viewed from the side of the folding turret 12 and FIG. 9 is a top view of the preliminary folding station 38.
- the preliminary folding station 38 includes a preliminary folding guide 60, a table 62, two folding roller trains (folding elements) 64A and 64B, an elevator 66, and the like.
- the preliminary folding guide 60 is placed on the table 62, with the blank 10 interposed therebetween.
- the preliminary folding guide 60 has been formed into the shape of a plate, which has lateral edges 68 near opposite ends of the table 62.
- the lateral edges 68 extend along the transfer path 26, have an arc shape corresponding to the round edges of the box 14, and establish width of the transfer surface 40 by being placed on opposite sides of the preliminary folding guide 60.
- the lateral edges 68 are formed to have a radius of curvature R (e.g., 2.5 mm) smaller than a radius of curvature (e.g., 4 mm) of the round edges.
- the blank 10 When the blank 10 is superimposed under the preliminary folding guide 60, the blank 10 is abutted by an undersurface 60a of the preliminary folding guide 60.
- a convexly curved surface portion 70 is formed in a cross-sectional center of the preliminary folding guide 60, protruding downward, i.e., protruding in a direction opposite a folding direction of the flap sections 22.
- concavely curved surface portions 72 depressed upward, i.e., depressed in the folding direction of the flap sections 22 are formed on the undersurface 60a of the preliminary folding guide 60, being linked, respectively, to opposite ends of the convexly curved surface portion 70 via smooth arcs. Via smooth arcs, the concavely curved surface portions 72 are linked, respectively, to lateral edges 68 positioned in neighborhoods.
- the table 62 forms the transfer path 26, and when the blank 10 is superimposed under the preliminary folding guide 60, the blank 10 abuts a top 62a of the table 62 serving as the transfer surface 40 of the transfer path 26.
- the top 62a of the table 62 is formed to have a concavely curved surface portion 74 and convexly curved surface portions 76 corresponding, respectively, to the convexly curved surface portion 70 and concavely curved surface portions 72 formed on the undersurface 60a of the preliminary folding guide 60. That is, the top 62a of the table 62 has a geometry complementary to the undersurface 60a of the preliminary folding guide 60. Then, at the preliminary folding position, the center section 20 of the blank 10 is pressed by being sandwiched between the convexly curved surface portion 70 and concavely curved surface portions 72 of the preliminary folding guide 60 and the concavely curved surface portion 74 and convexly curved surface portions 76 of the table 62.
- the folding roller trains 64A and 64B are placed near opposite ends of the lateral edges 68 of the preliminary folding guide 60 and provided with respective shafts 65A and 65B extending along the lateral edges 68.
- first folding roller (first folding member or first folding roller) 67a and three second folding rollers (second folding members or second folding rollers) 67b are rotatably supported on each of the shafts 65A and 65B.
- the first folding roller 67a gives a preliminary folding angle to the inside flaps 22a by folding the inside flaps 22a while on the other hand, the second folding rollers 67b give a preliminary folding angle to the outside flaps 22b by folding the outside flaps 22b.
- the first and second folding rollers 67a and 67b form the first and second pressing surfaces 67a1 and 67b1 to be pressed against the lateral edges 68 via the strip regions 24.
- the first and second folding rollers 67a and 67b have circular cross sections of the same diameter, the first and second pressing surfaces 67a1 and 67b1 have the same radius of curvature, and when the preliminary folding angle is given, a distance between the first pressing surface 67a1 and lateral edge 68 is equal to a distance between the second pressing surface 67b1 and lateral edge 68.
- the folding roller trains 64A and 64B are rotatably coupled to a linkage of the elevator 66, and when the elevator 66 operates, the folding rollers 67a and 67b move along tracks 78 indicated by arrows in FIG. 8 via the linkage.
- the blank 10 when the blank 10 is placed at the preliminary folding position, first the blank 10 placed on the table 62 is superimposed under the preliminary folding guide 60 while at the same time, the flap sections 22 including the strip regions 24 of the blank 10 protrude from the lateral edges 68.
- the folding rollers 67a and 67b move along the arc-shaped tracks 78 around outer sides of the lateral edges 68 located in respective neighborhoods of the folding rollers 67a and 67b and fold the flap sections 22 while pressing the strip regions 24 of the blank 10 along the lateral edges 68.
- the track along which each of the folding rollers 67a and 67b move is represented by a contact angle ⁇ (e.g., 160 degrees) of the folding roller 67a or 67b with respect to the lateral edge 68.
- ⁇ e.g. 160 degrees
- the blank 10 having creases is fed from the transfer rollers 32 capable of transferring the blank 10 by maintaining the creases and transferred to the folding turret 12.
- the folding turret 12 is placed at a main folding position on the transfer path 26, where the main folding position is established downstream of the preliminary folding station 38.
- the folding turret 12 forms the box 14 by folding the blank 10 and forms a completed package 1.
- the folding turret 12 is a turret type packaging machine equipped with a turret 80 and is rotated intermittently in the circumferential direction indicated by an arrow in FIG. 2 .
- Plural pockets 82 are formed at equal intervals in an outer circumferential portion of the turret 80.
- each pocket 82 is moved from an inlet 80a of the turret 80, at which a termination of the transfer path 26 is located, to an outlet 80b of the turret 80, from which packages 1 are carried out.
- the blank 10 When one pocket 82 is placed at the inlet 80a of the turret 80, the blank 10 is pushed into the pocket 82 by a non-illustrated pusher. In so doing, the flap sections 22 are partly folded toward the center sections 20 along the cut lines 58 formed in the strip regions 24 of the blank 10. Subsequently, in a process in which the pocket 82 positioned at the inlet 80a of the turret 80 moves intermittently toward the outlet 80b of the turret 80, an inner pack containing cigarettes and inner frame are inserted into the blank 10 formed partly.
- the blank 10 is folded.
- glue is applied to part of the flap sections 22, and then the flap sections 22 are folded, and bonded to the center section 20. Then, finally the hinged-lid package 1 of cigarettes is formed as a completed product.
- a large number of cut lines 58 can be formed in the rear surfaces 18 of the strip regions 24 of the blank 10 corresponding to the square edges 16 of the box 14. Since the blank 10 smaller in surface area than the material web can be used as a workpiece, by forming cut lines 58 in individual pieces of the blank 10 in the process of supplying the blank 10 before packaging of the package 1, the thickness of the strip regions 24 of the blank 10 can be reduced reliably, thereby reducing the bending strength of the strip regions 24 effectively.
- the present embodiment can prevent swelling of the box 14 caused by excessive shallowness or excessive deepness of the folding lines formed on the blank 10, and thus prevent adhesive sections of the blank 10 from detaching from each other due to the swelling and prevent separation between adjacent sections in the blank 10, and eventually improve quality including formability of the box 14 and thus the package 1.
- the present embodiment can reliably form folding lines on the blank 10 without being affected by properties of the material web and easily improve productivity and quality of the blank 10, the box 14, and thus the package 1.
- the supply apparatus 8 is equipped with the gap adjustment apparatus 56 adapted to adjust the gap between the pair of the cutting roller 42 and carrier roller 44, the depth of the cut lines 58 in the blank 10 can be adjusted easily. This makes it possible to further improve the productivity and quality of the box 14 and thus the package 1.
- the radius of curvature R of the lateral edges 68 of the preliminary folding guide 60 is smaller than the radius of curvature of the round edges of the box 14. Consequently, by allowing for a restoring force of the round edges of the box 14 tending to return to a flat state when the box 14 is formed, the blank 10 can be folded in a direction opposite the direction of restoring force during preliminary folding of the blank 10, making the blank 10 develop a stronger tendency to bend in this direction. Thus, the strip regions 24 of the blank 10 can be creased more strongly making it possible to still further improve the quality of the box 14 and thus the package 1.
- the convexly curved surface portion 70 and concavely curved surface portions 72 are formed on the undersurface 60a of the preliminary folding guide 60 and the blank 10 is superimposed between these parts and the corresponding concavely curved surface portion 74 and convexly curved surface portions 76 of the table 62.
- smooth round edges can be formed easily.
- the strip regions 24 of the blank 10 can be creased still more strongly, making it possible to still further improve the quality of the box 14 and thus the package 1.
- the blades 48 are formed all around the outer circumferential surface 42c along the circumferential direction of the outer circumferential surface 42c.
- the blade 48 may be arranged partially along the circumferential direction on the pressing regions 46 of the outer circumferential surface 42c, for example, as shown in FIG. 10 .
- concave portions 84 may be formed partially along a circumferential direction in the pressing regions 52 on the outer circumferential surface 44c of the carrier roller 44.
- the intermittent cut lines 58 can be formed in the strip regions 24 of the blank 10.
- the box 14 and thus the package 1 can be formed, being designed such that of the strip regions 24 of the blank 10, cut lines 58 are not formed in a top wall 86 formed on a lid of the box 14 and a bottom wall 88 formed on a body of the box 14. This makes it possible to greatly expand design variations of the box 14 and thus package 1.
- the blades 48 may be partially varied in tip length in the circumferential direction of the pressing regions 52. This makes it possible to form cut lines 58 of different depths in the strip regions 24 of the blank 10. In this case, the strength of creasing the strip regions 24 of the blank 10 can be controlled, making it possible to still further improve the quality of the box 14 and thus the package 1.
- the blades 48 of the cutting roller 42 may be shaped so as to have tips 48b inclined with respect to the circumferential direction of the outer circumferential surface 42c.
- a large number of cut lines 90 inclined with respect to the longitudinal axis of the blank are formed in the strip regions 24 of the blank 10. Then, by selecting paper quality of the material web, it is possible to form a box 14 designed such that a slash pattern 92 can be seen through the square edges 16, which are to become round edges, as shown in FIG. 15 .
- blades 48 provided with first tips 48c and second tips 48d may be formed, the first tips 48c being inclined with respect to the circumferential direction of the outer circumferential surface 42c and the second tips 48d intersecting the first tips 48c.
- Such blades 48 can be formed by processing the pressing regions 46 into a mesh pattern by knurling or the like.
- cut lines 94 inclined with respect to the longitudinal axis of the blank 10 and cut lines 96 intersecting the cut lines 94 are formed in large quantities in the strip regions 24 of the blank 10. Then, by selecting paper quality of the material web, it is possible to form a box 14 designed such that a mesh pattern 98 can be seen through the square edges 16, which are to become round edges, as shown in FIG. 18 .
- the cut lines 58, 90, 94, and 96 are formed in the rear surfaces 18 of the strip regions 24 of the blank 10, the cut lines 58, 90, 94, and 96 may be formed in regions other than the strip regions 24 of the blank 10 or in the surface of the strip regions 24. In this way, by the application of the present invention, various cut lines can be formed in various places according to the design required of the box 14.
- the blank 10 is transferred with its longitudinal axis being placed along the transfer path 26, the blank 10 may be transferred with its longitudinal axis being placed in a direction orthogonal to the transfer path 26.
- the cut lines 58 can be formed in a square edge between the top wall 86 formed on the lid of the box 14 and the body of the box 14 or in a square edge between the body of the box 14 and the bottom wall 88 of the body, making it possible to further expand design variations of the box 14 and thus package 1.
- transfer rollers 28, 30, and 32 and transfer disks 34 and 36 described in the present embodiment are not limited to those described in the present embodiment.
- only the transfer rollers 30 provided with the cutting roller 42 may be installed immediately upstream of the preliminary folding station 38 without installing the transfer disks 34 and 36.
- cut lines 58 are formed in the blank 10 used to form a hinged-lid package 1, the present invention can be applied to blank 10 used to form various packages or inner frames of packages in addition to the hinged-lid package 1.
- FIG. 19 is a perspective view showing the hinged-lid package 1 with a lid 100 open.
- An inner frame 102 is bonded in a box 14 of the hinged-lid package 1.
- the blank 10 for the box 14 and blank 10 for the inner frame 102 differ in printed state required of the surface of the blank 10 with differences in product brand and have material properties differing in fiber basis weight (e.g., 200 to 250 g/m 2 ) and density.
- blank 10 made of a material with a relatively high fiber density (e.g., 0.8 to 1.0 g/cm 3 ) is used for the inner frame 102.
- the present invention is applicable to blank 10 having material properties required from the inner frame 102 as well as from the box 14.
- a preliminary folding station provided on a blank supply apparatus according to a second embodiment will be described below with reference to FIGS. 20 to 24 . Note that mainly differences from the first embodiment will be described and that description of other components may be omitted by denoting the components in the drawings with the same reference numerals as the corresponding components in the first embodiment.
- the first pressing surface 67a1 of the first folding roller 67a and the second pressing surface 67b1 of the second folding roller 67b are formed to have different radii of curvature.
- the first folding roller 67a has a circular cross section of a smaller diameter than the second folding roller 67b
- the first pressing surface 67a1 is formed to have a smaller radius of curvature than the second pressing surface 67b1
- the distance between the first pressing surface 67a1 and lateral edge 68 is larger than the distance between the second pressing surface 67b1 and lateral edge 68 when the preliminary folding angle is given.
- the repulsive force of the blank tending to return to a pre-folding flat state is small. Consequently, for example, as with the first embodiment, if the first and second pressing surfaces 67a1 and 67b1 are set to have an equal radius of curvature by using the first and second folding rollers 67a and 67b of the same diameter, as shown in FIG. 21 , the inside flaps 22a positioned inside the box 14 during forming of the box 14 assume a posture of being inclined too much toward the inner side of the box 14, increasing the preliminary folding angles of the inside flaps 22a.
- the first folding roller 67a is set to have a circular cross section of a smaller diameter than the second folding roller 67b, and the first pressing surface 67a1 is set to have a smaller radius of curvature than the second pressing surface 67b1, and consequently the distance between the first pressing surface 67a1 and lateral edge 68 is made larger than the distance between the second pressing surface 67b1 and lateral edge 68 when the preliminary folding angle is given.
- This makes it possible to reduce the preliminary folding angle of the inside flaps 22a and thereby allows the strip regions 24 of the blank 10 to be creased weakly.
- the inside flaps 22a can be placed in an upright posture inside the box 14 during forming of the box 14.
- the control of varying the folding shape between the inside flaps 22a and outside flaps 22b in a preliminary folding step of the blank 10 it is possible to reduce quality variations of the blank 10 and easily improve the productivity and quality of the box 14 and thus the hinged-lid package 1 as with the first embodiment.
- the transfer surface 40 of the preliminary folding guide 60 is formed such that of the lateral edge 68, a first lateral edge 68a pressed by the first folding roller 67a will be smaller in width than a second folding roller 67b pressed by the second folding roller 67b.
- the distance between the first pressing surface 67a1 and lateral edge 68 becomes larger than the distance between the second pressing surface 67b1 and lateral edge 68 when the preliminary folding angle is given.
- the preliminary folding angle of the inside flap 22a is decreased, eventually allowing the strip regions 24 to be creased weakly and thereby making it possible to place the inside flaps 22a in an upright posture inside the box 14 during forming of the box 14.
- each of the folding block trains 108A and 108B is made up, for example, of one first folding block (first folding member or folding block) 110a and three second folding blocks (second folding members or folding blocks) 110b.
- the folding blocks 110a and 110b are advanceably/retractably coupled to respective non-illustrated sliding mechanisms.
- the first folding block 110a gives a preliminary folding angle to the inside flaps 22a by folding the inside flaps 22a while on the other hand, the second folding blocks 110b give a preliminary folding angle to the outside flaps 22b by folding the outside flaps 22b.
- first and second pressing surfaces 110a1 and 110b1 to be pressed against the lateral edges 68 via the strip regions 24 are formed in a concave surface opposed to the lateral edges 68 of the preliminary folding guide 60.
- the first pressing surface 110a1 is formed to have a larger radius of curvature than the second pressing surface 110b1. This decreases the preliminary folding angle of the inside flap 22a, eventually allowing the strip regions 24 to be creased weakly and thereby making it possible to place the inside flaps 22a in an upright posture inside the box 14 during forming of the box 14.
- the distance between the first pressing surface 110a1 and lateral edge 68 is made larger than the distance between the second pressing surface 110b1 and lateral edge 68 when the preliminary folding angle is given. This decreases the preliminary folding angle of the inside flaps 22a, eventually allowing the strip regions 24 to be creased weakly and thereby making it possible to place the inside flaps 22a in an upright posture inside the box 14 during forming of the box 14.
- the present invention can be realized not only by a combination of the first and second embodiments, but also by the configuration of the second embodiment alone. That is, even if the cut lines 58 are not formed in the strip regions 24 of the blank 10 by the cutting roller 42, of course, it is possible to reduce quality variations of the blank 10 based solely on the strength of creasing the strip regions of the blank 10 at the preliminary folding station described above, and easily improve the productivity and quality of the box 14 and thus the hinged-lid package 1.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Making Paper Articles (AREA)
- Supplying Of Containers To The Packaging Station (AREA)
- Wrapping Of Specific Fragile Articles (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
Abstract
Description
- The present invention relates to a blank supply apparatus and a blank supply method using the blank supply apparatus, and more particularly, to a supply apparatus adapted to supply blank used to form package boxes such as hinged-lid packages of cigarettes to a packaging machine as well as a blank supply method using the supply apparatus.
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Patent Document 1 discloses a package production apparatus for printing a material web according to a package design cutting off blank from the material web, and performing stamping and embossing on the blank. - Patent Document 1: International Publication
WO 2013/037463 Pamphlet - Some package boxes are configured such that square edges along a longitudinal direction of the boxes are shaped in the form of round edges. To produce such a box, it is necessary to create folding lines in regions of the round edges of the blank used to form the box and perform preliminary process during forming.
- Conventionally, processing of spread blank before folding has been entrusted to a printer who prints on the blank. Specifically, the printer prints on material web before the material web is separated into individual pieces of blank and performs, for example, platen-based stamping using a platen. In so doing, the folding lines described above are also formed as pressure lines all at once by embossing and at the same time the material web is cut into individual pieces of blank.
- These days, package boxes require designs full of variations often requiring complicated geometries for stamping sites and folding lines. When the geometries of folding lines vary, it is necessary to prepare platens for the different geometries, resulting in increased production costs. Moreover, to form folding lines reliably on the blank, compared to when only stamping sites are formed on the blank, subtle adjustments of pressing pressure on the platen are necessary, and the entire platen has to be pressed uniformly. If pressing force of the platen is not appropriate or not uniform, the folding lines formed on the blank can get too shallow or too deep. Such trouble with folding lines depends also on basis weight and density of the material web used for the blank.
- If the folding lines formed on the blank is too shallow, repulsive force (restoring force) of blank tending to return to a pre-folding flat state increases, and thus round edges are hard to form in a process of folding the box on a packaging machine. Consequently, the box might swell unintentionally, eventually resulting in detachment of adhesive sections from each other due to the swelling and making the box and thus the package defective.
- On the other hand, when folding lines formed on the blank are too deep, the platen will bite into the material web excessively, making it difficult to separate the platen from the material web. Also, adjacent sections in the blank may be separated by a folding line, which might make the blank defective.
- Also, in a preliminary process during forming of the package box, in addition to producing folding lines on the blank, a preliminary folding step of giving fold geometries to the blank may be carried out by preliminarily folding the blank.
- In such a preliminary folding step, the repulsive force of the blank tending to return to a pre-folding flat state is small especially when blank with a small paper thickness is used. Consequently, in the case of an inside flap in which a folding location of the blank is positioned on an inner side of the box, the inside flap assumes a posture of being inclined excessively toward the inner side of the box. This causes the inside flap to be spaced away from an outside flap located outside the box during forming of the box making it impossible to superimpose and properly bond the opposed flaps by gluing or the like, which might make the box and thus the package defective.
- The present invention has been made in view of the above problem and has an object to provide a blank supply apparatus and a blank supply method using the blank supply apparatus, where the apparatus and method can control folding geometries of blank, thereby reduce quality variations of the blank, and easily improve productivity and quality of a box and thus a package.
- In order to achieve the above object, an aspect of the present invention is directed to providing a blank supply apparatus adapted to supply blank used to form a box of a package to a packaging machine, the supply apparatus comprising: a transfer path adapted to transfer the blank piece by piece along a transfer surface by extending from a supply source of the blank to the packaging machine; and a pair of rollers rotatably placed on opposite sides of the transfer surface and provided with a pressing region on an outer circumferential surface to feed the blank while pressing a strip region of the blank corresponding to a square edge of the box, wherein one of the pair of rollers has a large number of blades in the pressing region, and when the blank passes between the pair of rollers, the blades form a large number of cut lines in the strip region of the blank to reduce bending strength of the strip region.
- On the other hand, a blank supply method according to the present invention is a method for supplying blank used to form a box of a package to a packaging machine, the method comprising a cutting step of forming a large number of cut lines in the strip region of the blank to reduce bending strength of the strip region by transferring the blank piece by piece along a transfer surface from a supply source of the blank to a packaging machine while pressing a strip region of the blank corresponding to a square edge of the box.
- According to the present invention, a blank supply apparatus and a blank supply method using the blank supply apparatus can control folding geometries of blank, and easily improve productivity and quality of blank, a box, and thus a package.
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FIG. 1 is a side view of a hinged-lid package making machine equipped with a blank supply apparatus according to a first embodiment of the present invention. -
FIG. 2 is a plan view of the making machine ofFIG. 1 . -
FIG. 3 is a perspective view showing a box of the hinged-lid package ofFIG. 1 . -
FIG. 4 is a plan view of non-folded, spread blank used to form the box ofFIG. 3 , as viewed from a rear surface which is to become an inner surface of the box. -
FIG. 5 is a front view of transfer rollers ofFIG. 1 as viewed from the side of a preliminary folding station. -
FIG. 6 is a plan view of blank which has passed the transfer rollers ofFIG. 5 , as viewed from the rear surface. -
FIG. 7 is an enlarged sectional view of part of the blank ofFIG. 6 with cut lines formed therein. -
FIG. 8 is a front view of the preliminary folding station ofFIG. 1 as viewed from the side of a folding turret. -
FIG. 9 is a top view of the preliminary folding station ofFIG. 8 . -
FIG. 10 is a front view showing a variation of a cutting roller ofFIG. 5 . -
FIG. 11 is a front view showing a variation of a carrier roller ofFIG. 5 . -
FIG. 12 is a plan view of blank which can be formed using the roller ofFIG. 10 or11 . -
FIG. 13 is a front view showing another variation of the cutting roller ofFIG. 5 . -
FIG. 14 is a plan view of blank which can be formed using the cutting roller ofFIG. 13 . -
FIG. 15 is a perspective view showing a box formed of the blank ofFIG. 14 . -
FIG. 16 is a front view showing another variation of the cutting roller ofFIG. 5 . -
FIG. 17 is a plan view of blank which can be formed using the cutting roller ofFIG. 16 . -
FIG. 18 is a perspective view showing a box formed of the blank ofFIG. 17 . -
FIG. 19 is a perspective view showing a hinged-lid package with a lid open. -
FIG. 20 is a top view of a preliminary folding station provided on a blank supply apparatus according to a second embodiment of the present invention. -
FIG. 21 is a sectional view of a box formed of thin blank uniformly subjected to preliminary folding. -
FIG. 22 is a sectional view of a box formed of thin blank subjected to preliminary folding on the preliminary folding station ofFIG. 20 . -
FIG. 23 is a top view of a preliminary folding station, which is a variation ofFIG. 20 . -
FIG. 24 is a top view of a preliminary folding station, which is another variation ofFIG. 20 . - Embodiments of the present invention will be described below with reference to the drawings.
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FIG. 1 shows a side view of a makingmachine 2 of a hinged-lid package 1 (hereinafter referred to simply as a package 1), the makingmachine 2 being equipped with a blank supply apparatus according to a first embodiment of the present invention andFIG. 2 shows a plan view of the makingmachine 2. The makingmachine 2 includes a blank magazine (supply source) 4, asuction 6, ablank supply apparatus 8, a folding turret (packaging machine) 12 for a blank 10, and the like. -
FIG. 3 is a perspective view showing abox 14 of thepackage 1 according to the present embodiment. Foursquare edges 16 of thebox 14 along a longitudinal direction of the box are shaped into round edges, and according to the present embodiment, each of thesquare edges 16 are made up of a series of planes sloped step-by-step. -
FIG. 4 is a plan view of non-folded, spread blank 10 used to form thebox 14 ofFIG. 3 , as viewed from arear surface 18 which is to become an inner surface of thebox 14. - The blank 10 roughly includes a
center section 20 in center and a pair offlap sections 22 formed on opposite sides of thecenter section 20. Eachflap section 22 is made up of a group ofinside flaps 22a disposed in a longitudinal center of the blank 10 and positioned inside thebox 14 during forming of thebox 14, a group ofoutside flaps 22b placed on opposite ends of the blank 10 in the longitudinal direction and positioned outside the box 13 during forming of thebox 14. - An adhesive surface 22a1 to which glue or the like has been applied is formed on each
inside flap 22a as shown inFIG. 4 and the inside andoutside flaps box 14. Also, the blank 10 is formed to havestrip regions 24 corresponding to thesquare edges 16 of thebox 14. Thestrip regions 24 are formed in two places over thecenter section 20 and the pairedflap sections 22, extending in parallel to a longitudinal axis of the blank 10 along the transfer path 26 (seeFIGS. 1 and2 ) provided on thesupply apparatus 8. - As shown in
FIGS. 1 and2 , many pieces of blank 10 shown inFIG. 4 are stacked in ablank magazine 4. The blank 10 is sucked piece by piece out of a bottom of theblank magazine 4 by thesuction 6 and drawn out in succession toward thesupply apparatus 8. - The
supply apparatus 8 includes thetransfer path 26,transfer rollers transfer disks preliminary folding station 38, and the like. - The
transfer path 26 extends from theblank magazine 4 to thepreliminary folding station 38 and eventually to thefolding turret 12 and transfers the blank 10 piece by piece along atransfer surface 40 of thetransfer path 26 using thetransfer rollers transfer disks transfer rollers transfer disks blank magazine 4 to thetransfer path 26 and eventually to thefolding turret 12 piece by piece in sequence. - The
transfer rollers 28 are made up of a pair ofrollers transfer surface 40. When the blank 10 passes between therollers rollers transfer path 26. Thetransfer rollers 30 feed and transfer the blank 10 in a manner similar to thetransfer rollers 28. - The
transfer disks transfer surface 40, and as the blank 10 passes under thetransfer disks transfer disks transfer path 26. -
FIG. 5 is a front view of thetransfer rollers 30 as viewed from the side of apreliminary folding station 38. Thetransfer rollers 30 are placed immediately upstream of thepreliminary folding station 38 and made up of a cuttingroller 42 placed on an upper side of thetransfer surface 40 and acarrier roller 44 placed under thetransfer surface 40. - The cutting
roller 42 is equipped with a drivingshaft 42b adapted to rotationally drive aroller body 42a in the direction of an arrow. On theroller body 42a, i.e., an outercircumferential surface 42c of the cuttingroller 42, strip-likepressing regions 46 are formed, respectively, at positions corresponding to the above-mentionedstrip regions 24 of the blank 10. In thepressing regions 46, a large number ofblades 48 are formed all around the outercircumferential surface 42c. Each of theblades 48 has atip 48a along a circumferential direction of the outercircumferential surface 42c, thetip 48a of theblade 48 has been processed into an acute-angled V-shape, and theblades 48 are substantially equal in tip length. Also, theroller body 42a and drivingshaft 42b are detachably attached to each other with abolt 50. - On the other hand, the
carrier roller 44 is equipped with a drivingshaft 44b adapted to rotationally drive aroller body 44a in the direction of an arrow. On theroller body 44a, i.e., an outercircumferential surface 44c of thecarrier roller 44, strip-likepressing regions 52 are flatly formed, respectively, at positions corresponding to theregions 24 of the blank 10. Also, theroller body 44a and drivingshaft 44b are detachably attached to each other with abolt 54. - The
blades 48 formed in thepressing regions 46 on the outercircumferential surface 42c of the cuttingroller 42 protrude toward thepressing regions 52 on the outercircumferential surface 44c of thecarrier roller 44 with a predetermined gap G provided therebetween. The drivingshaft 42b of the cuttingroller 42 and the drivingshaft 44b of thecarrier roller 44 are coupled to agap adjustment apparatus 56. Thegap adjustment apparatus 56 is configured to be able to adjust the gap G between the cuttingroller 42 andcarrier roller 44 by moving up and down the drivingshafts -
FIG. 6 is a plan view of the blank 10 which has passed thetransfer rollers 30, as viewed from arear surface 18. When the blank 10 passes between the pair of the cuttingroller 42 andcarrier roller 44, the blank 10 is fed by pressing thestrip regions 24 of the blank 10 with thepressing regions 46 of the cuttingroller 42 andpressing regions 52 of thecarrier roller 44. In so doing, theblades 48 cut into therear surfaces 18 of thestrip regions 24 by a predetermined depth along thickness of the blank 10 and thereby form a large number ofcut lines 58 in the rear surfaces 18. The cut lines 58 extend in parallel to the longitudinal axis of the blank 10 thereby reduce thickness of thestrip regions 24 of the blank 10, and thereby reduce bending strength of thestrip regions 24. Also, the gap G between the pair of the cuttingroller 42 andcarrier roller 44 is established according to depth ofcut lines 58 required of the blank 10. -
FIG. 7 is an enlarged sectional view of part of the blank 10 withcut lines 58 formed therein. The gap G between the pair of the cuttingroller 42 andcarrier roller 44 is set to a range of, for example, 20% to 50% the thickness T (e.g., 0.25 mm to 0.35 mm) of the blank 10. In this case, as shown inFIG. 7 , a large number ofcut lines 58 of a predetermined depth D in a range of, for example, 50% to 80% the thickness T of the blank 10 are formed in the blank 10, being shaped, for example, like an acute-angled valley (letter V). - As shown in
FIGS. 1 and2 , thepreliminary folding station 38 is placed at a preliminary folding position on thetransfer path 26, where the preliminary folding position is established immediately downstream of thetransfer rollers 30, i.e., the pair of the cuttingroller 42 andcarrier roller 44. When the blank 10 is placed at the preliminary folding position, thepreliminary folding station 38 preliminarily folds thestrip regions 24 of the blank 10, and gives folding shapes corresponding to the round edges of thebox 14, and more specifically preliminary folding angles, to thestrip regions 24 as shown inFIG. 3 . -
FIG. 8 is a front view of thepreliminary folding station 38 as viewed from the side of thefolding turret 12 andFIG. 9 is a top view of thepreliminary folding station 38. Thepreliminary folding station 38 includes apreliminary folding guide 60, a table 62, two folding roller trains (folding elements) 64A and 64B, anelevator 66, and the like. - The
preliminary folding guide 60 is placed on the table 62, with the blank 10 interposed therebetween. - The
preliminary folding guide 60 has been formed into the shape of a plate, which haslateral edges 68 near opposite ends of the table 62. The lateral edges 68 extend along thetransfer path 26, have an arc shape corresponding to the round edges of thebox 14, and establish width of thetransfer surface 40 by being placed on opposite sides of thepreliminary folding guide 60. The lateral edges 68 are formed to have a radius of curvature R (e.g., 2.5 mm) smaller than a radius of curvature (e.g., 4 mm) of the round edges. - When the blank 10 is superimposed under the
preliminary folding guide 60, the blank 10 is abutted by anundersurface 60a of thepreliminary folding guide 60. On theundersurface 60a ofpreliminary folding guide 60, a convexlycurved surface portion 70 is formed in a cross-sectional center of thepreliminary folding guide 60, protruding downward, i.e., protruding in a direction opposite a folding direction of theflap sections 22. - Furthermore, concavely
curved surface portions 72 depressed upward, i.e., depressed in the folding direction of theflap sections 22 are formed on theundersurface 60a of thepreliminary folding guide 60, being linked, respectively, to opposite ends of the convexlycurved surface portion 70 via smooth arcs. Via smooth arcs, the concavelycurved surface portions 72 are linked, respectively, tolateral edges 68 positioned in neighborhoods. - The table 62 forms the
transfer path 26, and when the blank 10 is superimposed under thepreliminary folding guide 60, the blank 10 abuts a top 62a of the table 62 serving as thetransfer surface 40 of thetransfer path 26. - The top 62a of the table 62 is formed to have a concavely
curved surface portion 74 and convexlycurved surface portions 76 corresponding, respectively, to the convexlycurved surface portion 70 and concavelycurved surface portions 72 formed on theundersurface 60a of thepreliminary folding guide 60. That is, the top 62a of the table 62 has a geometry complementary to theundersurface 60a of thepreliminary folding guide 60. Then, at the preliminary folding position, thecenter section 20 of the blank 10 is pressed by being sandwiched between the convexlycurved surface portion 70 and concavelycurved surface portions 72 of thepreliminary folding guide 60 and the concavelycurved surface portion 74 and convexlycurved surface portions 76 of the table 62. - The folding roller trains 64A and 64B are placed near opposite ends of the lateral edges 68 of the
preliminary folding guide 60 and provided withrespective shafts shafts - The
first folding roller 67a gives a preliminary folding angle to theinside flaps 22a by folding theinside flaps 22a while on the other hand, thesecond folding rollers 67b give a preliminary folding angle to the outside flaps 22b by folding theoutside flaps 22b. On respective outer circumferential surfaces, the first andsecond folding rollers strip regions 24. - According to the present embodiment, the first and
second folding rollers lateral edge 68 is equal to a distance between the second pressing surface 67b1 andlateral edge 68. - The folding roller trains 64A and 64B are rotatably coupled to a linkage of the
elevator 66, and when theelevator 66 operates, thefolding rollers FIG. 8 via the linkage. - Specifically, when the blank 10 is placed at the preliminary folding position, first the blank 10 placed on the table 62 is superimposed under the
preliminary folding guide 60 while at the same time, theflap sections 22 including thestrip regions 24 of the blank 10 protrude from the lateral edges 68. - Next, as the
elevator 66 is operated, thefolding rollers tracks 78 around outer sides of the lateral edges 68 located in respective neighborhoods of thefolding rollers flap sections 22 while pressing thestrip regions 24 of the blank 10 along the lateral edges 68. The track along which each of thefolding rollers folding roller lateral edge 68. In this way, the blank 10 having cutlines 58 is preliminarily folded at thepreliminary folding station 38 creasing thestrip regions 24 of the blank 10. - As shown in
FIGS. 1 and2 , the blank 10 having creases is fed from thetransfer rollers 32 capable of transferring the blank 10 by maintaining the creases and transferred to thefolding turret 12. Thefolding turret 12 is placed at a main folding position on thetransfer path 26, where the main folding position is established downstream of thepreliminary folding station 38. When the blank 10 is placed at the main folding position, thefolding turret 12 forms thebox 14 by folding the blank 10 and forms a completedpackage 1. - Specifically, the
folding turret 12 is a turret type packaging machine equipped with aturret 80 and is rotated intermittently in the circumferential direction indicated by an arrow inFIG. 2 .Plural pockets 82 are formed at equal intervals in an outer circumferential portion of theturret 80. Along with intermittent rotation of theturret 80, eachpocket 82 is moved from aninlet 80a of theturret 80, at which a termination of thetransfer path 26 is located, to anoutlet 80b of theturret 80, from which packages 1 are carried out. - When one
pocket 82 is placed at theinlet 80a of theturret 80, the blank 10 is pushed into thepocket 82 by a non-illustrated pusher. In so doing, theflap sections 22 are partly folded toward thecenter sections 20 along the cut lines 58 formed in thestrip regions 24 of the blank 10. Subsequently, in a process in which thepocket 82 positioned at theinlet 80a of theturret 80 moves intermittently toward theoutlet 80b of theturret 80, an inner pack containing cigarettes and inner frame are inserted into the blank 10 formed partly. - Furthermore, along with intermittent movement of the
pocket 82, the blank 10 is folded. When the blank 10 goes out of theoutlet 80b, glue is applied to part of theflap sections 22, and then theflap sections 22 are folded, and bonded to thecenter section 20. Then, finally the hinged-lid package 1 of cigarettes is formed as a completed product. - Thus, according to the present embodiment, as the cutting
roller 42 of thetransfer rollers 30 has a large number ofblades 48 in thepressing regions 46 on the outercircumferential surface 42c of the cuttingroller 42, a large number ofcut lines 58 can be formed in therear surfaces 18 of thestrip regions 24 of the blank 10 corresponding to thesquare edges 16 of thebox 14. Since the blank 10 smaller in surface area than the material web can be used as a workpiece, by forming cutlines 58 in individual pieces of the blank 10 in the process of supplying the blank 10 before packaging of thepackage 1, the thickness of thestrip regions 24 of the blank 10 can be reduced reliably, thereby reducing the bending strength of thestrip regions 24 effectively. - Specifically, the present embodiment can prevent swelling of the
box 14 caused by excessive shallowness or excessive deepness of the folding lines formed on the blank 10, and thus prevent adhesive sections of the blank 10 from detaching from each other due to the swelling and prevent separation between adjacent sections in the blank 10, and eventually improve quality including formability of thebox 14 and thus thepackage 1. Thus, the present embodiment can reliably form folding lines on the blank 10 without being affected by properties of the material web and easily improve productivity and quality of the blank 10, thebox 14, and thus thepackage 1. - Also, since the
supply apparatus 8 is equipped with thegap adjustment apparatus 56 adapted to adjust the gap between the pair of the cuttingroller 42 andcarrier roller 44, the depth of the cut lines 58 in the blank 10 can be adjusted easily. This makes it possible to further improve the productivity and quality of thebox 14 and thus thepackage 1. - Also, the radius of curvature R of the lateral edges 68 of the
preliminary folding guide 60 is smaller than the radius of curvature of the round edges of thebox 14. Consequently, by allowing for a restoring force of the round edges of thebox 14 tending to return to a flat state when thebox 14 is formed, the blank 10 can be folded in a direction opposite the direction of restoring force during preliminary folding of the blank 10, making the blank 10 develop a stronger tendency to bend in this direction. Thus, thestrip regions 24 of the blank 10 can be creased more strongly making it possible to still further improve the quality of thebox 14 and thus thepackage 1. - Also, the convexly
curved surface portion 70 and concavelycurved surface portions 72 are formed on theundersurface 60a of thepreliminary folding guide 60 and the blank 10 is superimposed between these parts and the corresponding concavelycurved surface portion 74 and convexlycurved surface portions 76 of the table 62. This makes it possible to fold the blank 10 in the direction opposite the direction of the above-mentioned restoring force of the round edges of thebox 14, making the blank 10 to develop a stronger tendency to bend in this direction. Furthermore, smooth round edges can be formed easily. Thus, thestrip regions 24 of the blank 10 can be creased still more strongly, making it possible to still further improve the quality of thebox 14 and thus thepackage 1. - The present invention is not limited to the first embodiment described above, and various modifications are possible.
- For example, according to the present embodiment, in the
pressing regions 46 on the outercircumferential surface 42c of the cuttingroller 42, theblades 48 are formed all around the outercircumferential surface 42c along the circumferential direction of the outercircumferential surface 42c. However, this is not restrictive, and theblade 48 may be arranged partially along the circumferential direction on thepressing regions 46 of the outercircumferential surface 42c, for example, as shown inFIG. 10 . - Also, as shown in
FIG. 11 ,concave portions 84 may be formed partially along a circumferential direction in thepressing regions 52 on the outercircumferential surface 44c of thecarrier roller 44. InFIGS. 11 and12 , when the blank 10 is fed by thetransfer rollers 30, by controlling rotational position of the cuttingroller 42 orcarrier roller 44, theintermittent cut lines 58 can be formed in thestrip regions 24 of the blank 10. - Specifically, as shown in
FIG. 12 , thebox 14 and thus thepackage 1 can be formed, being designed such that of thestrip regions 24 of the blank 10, cutlines 58 are not formed in atop wall 86 formed on a lid of thebox 14 and a bottom wall 88 formed on a body of thebox 14. This makes it possible to greatly expand design variations of thebox 14 and thuspackage 1. - Also, the
blades 48 may be partially varied in tip length in the circumferential direction of thepressing regions 52. This makes it possible to form cutlines 58 of different depths in thestrip regions 24 of the blank 10. In this case, the strength of creasing thestrip regions 24 of the blank 10 can be controlled, making it possible to still further improve the quality of thebox 14 and thus thepackage 1. - Also, since the
respective roller bodies roller 42 andcarrier roller 44 are detachable, by replacing theroller bodies transfer rollers 30 of the forms shown inFIGS. 10 and11 can be constructed easily. Also, it is easy to change the blank 10 to the form shown inFIG. 14 or17 described later, and thus to change thebox 14 to the form shown inFIG. 15 or18 . - Specifically, as shown in
FIG. 13 , theblades 48 of the cuttingroller 42, provided in thepressing regions 46, may be shaped so as to havetips 48b inclined with respect to the circumferential direction of the outercircumferential surface 42c. In this case, as shown inFIG. 14 , a large number ofcut lines 90 inclined with respect to the longitudinal axis of the blank are formed in thestrip regions 24 of the blank 10. Then, by selecting paper quality of the material web, it is possible to form abox 14 designed such that aslash pattern 92 can be seen through thesquare edges 16, which are to become round edges, as shown inFIG. 15 . - Also, as shown in
FIG. 16 ,blades 48 provided withfirst tips 48c andsecond tips 48d may be formed, thefirst tips 48c being inclined with respect to the circumferential direction of the outercircumferential surface 42c and thesecond tips 48d intersecting thefirst tips 48c.Such blades 48 can be formed by processing thepressing regions 46 into a mesh pattern by knurling or the like. In this case, as shown inFIG. 17 , cutlines 94 inclined with respect to the longitudinal axis of the blank 10 and cutlines 96 intersecting the cut lines 94 are formed in large quantities in thestrip regions 24 of the blank 10. Then, by selecting paper quality of the material web, it is possible to form abox 14 designed such that amesh pattern 98 can be seen through thesquare edges 16, which are to become round edges, as shown inFIG. 18 . - Also, as shown in
FIG. 14 and17 , if cut lines 90, 94, and 96 inclined with respect to the longitudinal axis of the blank 10 are formed, even if oneblade 48 somehow cut too deep into thestrip region 24 of the blank 10, complete separation between adjacent sections of the blank 10 along the cut lines 90, 94, and 96 can be avoided. - Also, although in the present embodiment, the cut lines 58, 90, 94, and 96 are formed in the
rear surfaces 18 of thestrip regions 24 of the blank 10, the cut lines 58, 90, 94, and 96 may be formed in regions other than thestrip regions 24 of the blank 10 or in the surface of thestrip regions 24. In this way, by the application of the present invention, various cut lines can be formed in various places according to the design required of thebox 14. - Also, although in the present embodiment, the blank 10 is transferred with its longitudinal axis being placed along the
transfer path 26, the blank 10 may be transferred with its longitudinal axis being placed in a direction orthogonal to thetransfer path 26. In this case, the cut lines 58 can be formed in a square edge between thetop wall 86 formed on the lid of thebox 14 and the body of thebox 14 or in a square edge between the body of thebox 14 and the bottom wall 88 of the body, making it possible to further expand design variations of thebox 14 and thuspackage 1. - Also, the numbers of
transfer rollers transfer disks transfer rollers 30 provided with the cuttingroller 42 may be installed immediately upstream of thepreliminary folding station 38 without installing thetransfer disks - Also, although in the example described in the present embodiment, cut
lines 58 are formed in the blank 10 used to form a hinged-lid package 1, the present invention can be applied to blank 10 used to form various packages or inner frames of packages in addition to the hinged-lid package 1. -
FIG. 19 is a perspective view showing the hinged-lid package 1 with alid 100 open. Aninner frame 102 is bonded in abox 14 of the hinged-lid package 1. The blank 10 for thebox 14 and blank 10 for theinner frame 102 differ in printed state required of the surface of the blank 10 with differences in product brand and have material properties differing in fiber basis weight (e.g., 200 to 250 g/m2) and density. - For example, 1 it is common practice to 2 allow the
lid 100 to be restrained easily by theinner frame 102 by providing a convex portion (not illustrated) in part of theinner frame 102, and thereby make thelid 100 to close properly. In this case, to keep the convex portion from getting fatigued due to an increased number of times thelid 100 is opened and closed and keep thelid 100 from closing improperly, blank 10 made of a material with a relatively high fiber density (e.g., 0.8 to 1.0 g/cm3) is used for theinner frame 102. The present invention is applicable to blank 10 having material properties required from theinner frame 102 as well as from thebox 14. - A preliminary folding station provided on a blank supply apparatus according to a second embodiment will be described below with reference to
FIGS. 20 to 24 . Note that mainly differences from the first embodiment will be described and that description of other components may be omitted by denoting the components in the drawings with the same reference numerals as the corresponding components in the first embodiment. - As shown in
FIG. 20 , in apreliminary folding station 104, the first pressing surface 67a1 of thefirst folding roller 67a and the second pressing surface 67b1 of thesecond folding roller 67b, are formed to have different radii of curvature. Specifically, according to the present embodiment, thefirst folding roller 67a has a circular cross section of a smaller diameter than thesecond folding roller 67b, the first pressing surface 67a1 is formed to have a smaller radius of curvature than the second pressing surface 67b1, and the distance between the first pressing surface 67a1 andlateral edge 68 is larger than the distance between the second pressing surface 67b1 andlateral edge 68 when the preliminary folding angle is given. - Thus, according to the present embodiment, when blank with a small paper thickness is used, the repulsive force of the blank tending to return to a pre-folding flat state is small. Consequently, for example, as with the first embodiment, if the first and second pressing surfaces 67a1 and 67b1 are set to have an equal radius of curvature by using the first and
second folding rollers FIG. 21 , theinside flaps 22a positioned inside thebox 14 during forming of thebox 14 assume a posture of being inclined too much toward the inner side of thebox 14, increasing the preliminary folding angles of theinside flaps 22a. Consequently, theinside flaps 22a and outside flaps 22b get spaced away too much during forming of thebox 14, making it impossible to superimpose and properly bond the opposed flaps by gluing or the like, which might make thebox 14 and thus the hinged-lid package 1 defective. - In contrast, according to the second embodiment, the
first folding roller 67a is set to have a circular cross section of a smaller diameter than thesecond folding roller 67b, and the first pressing surface 67a1 is set to have a smaller radius of curvature than the second pressing surface 67b1, and consequently the distance between the first pressing surface 67a1 andlateral edge 68 is made larger than the distance between the second pressing surface 67b1 andlateral edge 68 when the preliminary folding angle is given. This makes it possible to reduce the preliminary folding angle of theinside flaps 22a and thereby allows thestrip regions 24 of the blank 10 to be creased weakly. - Thus, as shown in
FIG. 22 , theinside flaps 22a can be placed in an upright posture inside thebox 14 during forming of thebox 14. In this way, by performing the control of varying the folding shape between theinside flaps 22a and outside flaps 22b in a preliminary folding step of the blank 10, it is possible to reduce quality variations of the blank 10 and easily improve the productivity and quality of thebox 14 and thus the hinged-lid package 1 as with the first embodiment. - The present invention is not limited to the second embodiment described above, and various modifications are possible.
- For example, in a
preliminary folding station 106 shown inFIG. 23 , although the first andsecond folding rollers transfer surface 40 of thepreliminary folding guide 60 is formed such that of thelateral edge 68, a firstlateral edge 68a pressed by thefirst folding roller 67a will be smaller in width than asecond folding roller 67b pressed by thesecond folding roller 67b. - Even in this case, the distance between the first pressing surface 67a1 and
lateral edge 68 becomes larger than the distance between the second pressing surface 67b1 andlateral edge 68 when the preliminary folding angle is given. Thus, the preliminary folding angle of theinside flap 22a is decreased, eventually allowing thestrip regions 24 to be creased weakly and thereby making it possible to place theinside flaps 22a in an upright posture inside thebox 14 during forming of thebox 14. - It is also possible to perform the control of varying the folding shape between the
inside flaps 22a and outside flaps 22b by controlling the operation of theelevator 66 and thereby varying the contact angle α with respect to the lateral edges 68 between the first andsecond folding rollers first folding roller 67a is set smaller in contact angle α than thesecond folding roller 67b, the preliminary folding angle of theinside flaps 22a is decreased, eventually allowing thestrip regions 24 to be creased weakly and thereby making it possible to place theinside flaps 22a in an upright posture inside thebox 14 during forming of thebox 14. - Also, in a
preliminary folding station 108 shown inFIG. 24 , two folding block trains 108A and 108B are provided instead of the two folding roller trains 67a and 67b. Each of the folding block trains 108A and 108B is made up, for example, of one first folding block (first folding member or folding block) 110a and three second folding blocks (second folding members or folding blocks) 110b. - The folding blocks 110a and 110b are advanceably/retractably coupled to respective non-illustrated sliding mechanisms. The
first folding block 110a gives a preliminary folding angle to theinside flaps 22a by folding theinside flaps 22a while on the other hand, the second folding blocks 110b give a preliminary folding angle to the outside flaps 22b by folding theoutside flaps 22b. - In the first and
second folding blocks strip regions 24 are formed in a concave surface opposed to the lateral edges 68 of thepreliminary folding guide 60. The first pressing surface 110a1 is formed to have a larger radius of curvature than the second pressing surface 110b1. This decreases the preliminary folding angle of theinside flap 22a, eventually allowing thestrip regions 24 to be creased weakly and thereby making it possible to place theinside flaps 22a in an upright posture inside thebox 14 during forming of thebox 14. - Also, if a distance by which the
first folding block 110a slides toward thelateral edge 68 is made smaller than a distance by which thesecond folding block 110b slides toward thelateral edge 68 by controlling the operation of the sliding mechanisms, the distance between the first pressing surface 110a1 andlateral edge 68 is made larger than the distance between the second pressing surface 110b1 andlateral edge 68 when the preliminary folding angle is given. This decreases the preliminary folding angle of theinside flaps 22a, eventually allowing thestrip regions 24 to be creased weakly and thereby making it possible to place theinside flaps 22a in an upright posture inside thebox 14 during forming of thebox 14. - Finally, the present invention can be realized not only by a combination of the first and second embodiments, but also by the configuration of the second embodiment alone. That is, even if the cut lines 58 are not formed in the
strip regions 24 of the blank 10 by the cuttingroller 42, of course, it is possible to reduce quality variations of the blank 10 based solely on the strength of creasing the strip regions of the blank 10 at the preliminary folding station described above, and easily improve the productivity and quality of thebox 14 and thus the hinged-lid package 1. -
- 1 Hinged-lid package (package)
- 4 Blank magazine (supply source)
- 8 Supply apparatus
- 10 Blank
- 12 Folding turret (packaging machine)
- 14 Box
- 16 Square edge
- 18 Rear face
- 22 Flap section
- 22a Inside flap
- 22b Outside flap
- 24 Strip region
- 26 Transfer path
- 30 Transfer roller (pair of rollers)
- 38 Preliminary folding station
- 40 Transfer surface
- 42 Cutting roller (one of rollers)
- 42c Outer circumferential surface
- 44 Carrier roller (other of rollers)
- 44c Outer circumferential surface
- 46 Pressing region
- 48 Blade
- 48a Tip along circumferential direction of outer circumferential surface
- 48b Tip inclined with respect to circumferential direction of outer circumferential surface
- 48c First tip inclined with respect to circumferential direction of outer circumferential surface
- 48d Second tip intersecting the first tip
- 52 Pressing region
- 56 Gap adjustment apparatus
- 58 Cut line
- 60 Preliminary folding guide
- 64A, 64B Folding roller train (folding element)
- 67a First folding roller (first folding member, folding roller)
- 67a1 First pressing surface
- 67b Second folding roller (second folding member, folding roller)
- 67b1 Second pressing surface
- 68 Lateral edge
- 70 Convexly curved surface portion
- 72 Concavely curved surface portion
- 78 Track
- 84 Recess
- 90 Cut line
- 94 Cut line
- 96 Cut line
- 108A, 108B Folding block train (folding element)
- 110a First folding block (first folding member, folding block)
- 110a1 First pressing surface
- 110b Second folding block (second folding member, folding block)
Claims (29)
- A blank supply apparatus adapted to supply blank used to form a box of a package to a packaging machine, the supply apparatus comprising:a transfer path adapted to transfer the blank piece by piece along a transfer surface by extending from a supply source of the blank to the packaging machine; anda pair of rollers rotatably placed on opposite sides of the transfer surface and provided with a pressing region on an outer circumferential surface to feed the blank while pressing a strip region of the blank corresponding to a square edge of the box, whereinone of the pair of rollers has a large number of blades in the pressing region of the roller, and when the blank passes between the pair of rollers, the blades form a large number of cut lines in the strip region of the blank to reduce bending strength of the strip region.
- The blank supply apparatus according to claim 1, further comprising a gap adjustment apparatus adapted to adjust a gap between the pair of rollers.
- The blank supply apparatus according to claim 1, wherein the blades are provided partially in a circumferential direction of the pressing region.
- The blank supply apparatus according to claim 1, wherein another of the pair of rollers is partially provided with a concave portion in a circumferential direction of the pressing region of the roller.
- The blank supply apparatus according to any one of claims 1 to 4, wherein the pair of rollers form the cut lines in a rear face of the strip region of the blank, where the rear face becomes an inner surface of the box.
- The blank supply apparatus according to any one of claims 1 to 5, wherein one of the pair of rollers is placed on an upper side of the transfer surface.
- The blank supply apparatus according to any one of claims 1 to 6, wherein the blades are formed to have tips in the pressing region, the tips running along a circumferential direction of the outer circumferential surface.
- The blank supply apparatus according to any one of claims 1 to 6, wherein in the pressing region, the blades are formed to have tips inclined with respect to a circumferential direction of the outer circumferential surface.
- The blank supply apparatus according to any one of claims 1 to 6, wherein in the pressing region, the blades are formed to have first tips inclined with respect to a circumferential direction of the outer circumferential surface and second tips intersecting the first tips.
- The blank supply apparatus according to any one of claims 7 to 9, wherein the tips of the blades have an acute-angled V-shape.
- The blank supply apparatus according to claim 10, wherein the blades partially vary in tip length in a circumferential direction of the pressing region.
- The blank supply apparatus according to any one of claims 1 to 11, wherein a longitudinal axis of the blank runs along the transfer path.
- The blank supply apparatus according to any one of claims 1 to 12, further comprising a preliminary folding station placed at a preliminary folding position established downstream of the pair of rollers and adapted to preliminarily fold the strip region of the blank and give a preliminary folding angle to the strip region when the blank is placed at the preliminary folding position.
- A blank supply apparatus adapted to supply blank used to form a box of a package to a packaging machine, the supply apparatus comprising:a transfer path adapted to transfer the blank piece by piece along a transfer surface by extending from a supply source of the blank to the packaging machine;a pair of rollers rotatably placed on opposite sides of the transfer surface and adapted to feed the blank; anda preliminary folding station placed at a preliminary folding position established downstream of the pair of rollers and adapted to preliminarily fold the strip region of the blank and give a preliminary folding angle to the strip region when the blank is placed at the preliminary folding position.
- The blank supply apparatus according to claim 13 or 14, wherein:the preliminary folding station includesa preliminary folding guide placed on the transfer path and provided with a lateral edge extending along the transfer path, where when the blank is placed at the preliminary folding position the blank is superimposed under the preliminary folding guide and a flap section of the blank protrudes from the lateral edge, the flap section being provided with the strip region, anda folding element placed in a neighborhood of the lateral edge of the preliminary folding guide and provided with an axis extending along the lateral edge; andthe folding element folds the flap section by pressing the strip region along the lateral edge and thereby establishes the preliminary folding angle of the flap section with respect to the blank.
- The blank supply apparatus according to claim 15, wherein:in the strip region of the blank, the square edge is formed into a round edge; andthe lateral edge has a radius of curvature smaller than a radius of curvature of the round edge.
- The blank supply apparatus according to claim 16, wherein:the preliminary folding guide has a convexly curved surface portion protruding in a direction opposite a folding direction of the flap section; andthe blank is superimposed under the convexly curved surface portion at the preliminary folding position.
- The blank supply apparatus according to claim 17, wherein:the preliminary folding guide is linked to opposite ends of the convexly curved surface portion via smooth arcs and the preliminary folding guide further includes a concavely curved surface portion depressed in the folding direction of the flap section and linked to the lateral edge, forming a smooth arc; andthe blank is superimposed under the convexly curved surface portion and the concavely curved surface portion at the preliminary folding position.
- The blank supply apparatus according to any one of claims 15 to 18, wherein:the flap section includes an inside flap located inside the box during forming of the box and an outside flap located outside the box during the forming of the box;the folding element includes a first folding member adapted to fold the inside flap and a second folding member adapted to fold the outside flap; andthe first and second folding members give different preliminary folding angles to the inside and outside flaps.
- The blank supply apparatus according to claim 19, wherein:the first and second folding members respectively include first and second pressing surfaces adapted to give the preliminary folding angles to the strip region by pressing the strip region along the lateral edge; anda distance between the first pressing surface and the lateral edge is larger than a distance between the second pressing surface and the lateral edge when the preliminary folding angles are given.
- The blank supply apparatus according to claim 19 or 20, wherein:the lateral edge establishes width of the transfer surface by being disposed on opposite sides of the preliminary folding guide; andthe transfer surface is formed such that in the preliminary folding guide, a first lateral edge adapted to press the first folding member is smaller in width than a second lateral edge adapted to press the second folding member.
- The blank supply apparatus according to any one of claims 19 to 21, wherein the first and second folding members are folding rollers adapted to fold the inside and outside flaps by moving along a track surrounding an outer side of the lateral edge, and pressing the strip region along the lateral edge.
- The blank supply apparatus according to any one of claims 19 to 21, wherein the first and second folding members are folding blocks adapted to fold the inside and outside flaps by moving in a direction of the lateral edge and pressing the strip region against the lateral edge.
- The blank supply apparatus according to any one of claims 1 to 23, wherein the package is a hinged-lid package.
- A method for supplying blank used to form a box of a package to a packaging machine, the method comprising
a cutting step of forming a large number of cut lines in the strip region of the blank to reduce bending strength of the strip region by transferring the blank piece by piece along a transfer surface from a supply source of the blank to a packaging machine while pressing a strip region of the blank corresponding to a square edge of the box. - The method for supplying blank according to claim 25, further comprising a preliminary folding step of preliminarily folding the strip region of the blank and giving a preliminary folding angle to the strip region when the blank is placed at a preliminary folding position established downstream of the cutting step.
- A method for supplying blank used to form a box of a package to a packaging machine, the method comprising
a preliminary folding step of preliminarily folding the strip region of the blank and giving a preliminary folding angle to the strip region when the blank is placed at a preliminary folding position by transferring the blank piece by piece along a transfer surface from a supply source of the blank to a packaging machine. - The method for supplying blank according to claim 26 or 27, wherein in the preliminary folding step, when the blank is placed at the preliminary folding position, the blank is superimposed on a preliminary folding guide, a flap section of the blank is caused to protrude from a lateral edge of the preliminary folding guide, the flap section being provided with the strip region, and the flap section is folded by pressing the strip region along the lateral edge by a folding element placed in a neighborhood of the lateral edge of the preliminary folding guide.
- The method for supplying blank according to claim 28, wherein:the flap section includes an inside flap located inside the box during forming of the box and an outside flap located outside the box during the forming of the box;the folding element includes a first folding member adapted to fold the inside flap and a second folding member adapted to fold the outside flap; andin the preliminary folding step, the first and second folding members give different preliminary folding angles to the inside and outside flaps.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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EP20190039.6A EP3753854A1 (en) | 2014-08-28 | 2015-08-28 | Blank supply apparatus and blank supply method using the same |
Applications Claiming Priority (2)
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PCT/JP2014/072547 WO2016031010A1 (en) | 2014-08-28 | 2014-08-28 | Blank-supplying apparatus, method for supplying blank using same |
PCT/JP2015/074503 WO2016031984A1 (en) | 2014-08-28 | 2015-08-28 | Blank supply device and blank supply method using same |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP20190039.6A Division EP3753854A1 (en) | 2014-08-28 | 2015-08-28 | Blank supply apparatus and blank supply method using the same |
Publications (2)
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EP3176097A1 true EP3176097A1 (en) | 2017-06-07 |
EP3176097A4 EP3176097A4 (en) | 2018-09-19 |
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EP15836822.5A Pending EP3176097A4 (en) | 2014-08-28 | 2015-08-28 | Blank supply device and blank supply method using same |
EP20190039.6A Pending EP3753854A1 (en) | 2014-08-28 | 2015-08-28 | Blank supply apparatus and blank supply method using the same |
Family Applications After (1)
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EP20190039.6A Pending EP3753854A1 (en) | 2014-08-28 | 2015-08-28 | Blank supply apparatus and blank supply method using the same |
Country Status (6)
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EP (2) | EP3176097A4 (en) |
JP (1) | JP6295336B2 (en) |
KR (1) | KR101979129B1 (en) |
CN (1) | CN107074382B (en) |
RU (1) | RU2672343C2 (en) |
WO (2) | WO2016031010A1 (en) |
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CN113727837B (en) * | 2019-05-02 | 2023-08-15 | 日本烟草国际股份有限公司 | Method and apparatus for forming a fold in an outer wrapper film |
CN110253948B (en) * | 2019-06-13 | 2020-12-11 | 安徽世品佳工业产品设计有限公司 | Method for creasing packaging paperboard |
RU202163U1 (en) * | 2020-03-24 | 2021-02-05 | Общество с ограниченной ответственностью "Центр Электронно-Лучевых Технологий" (ООО "ЦЭЛТ") | Drive of rotation and movement of the workpiece |
CN111873547B (en) * | 2020-07-30 | 2022-07-26 | 湖北中烟工业有限责任公司 | Method and device for folding paper printed matter in half |
JP7433260B2 (en) * | 2021-02-15 | 2024-02-19 | Ckd株式会社 | Manufacturing method of PTP sheet |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE517301C (en) * | 1928-08-07 | 1931-02-05 | Jakob Wojciechowski | Machine for making containers from card sections |
IT1060903B (en) * | 1976-03-31 | 1982-09-30 | Gd Spa | REGISTRATION AND DISCHARGE DEVICE OF STICKS OF WRAPPING MATERIAL TIN PAPER IN CIGARETTE CONDITIONING MACHINES IN PACKAGES AT VERY HIGH PRODUCTION SPEED |
DE3515775A1 (en) * | 1985-05-02 | 1986-11-06 | Focke & Co (GmbH & Co), 2810 Verden | METHOD AND DEVICE FOR PRODUCING PACKS WITH ROUNDED OR BEVELED EDGES |
DE3738102C2 (en) * | 1987-11-10 | 2001-09-06 | Focke & Co | Device for feeding blanks to a packaging unit |
NL1008144C2 (en) * | 1998-01-27 | 1999-07-28 | Madern Graveerindustrie En Ger | Roller device with multiple grooves. |
DE19957058A1 (en) * | 1999-11-26 | 2001-05-31 | Focke & Co | Method and device for producing collars for folding boxes |
ITBO20010553A1 (en) * | 2001-09-14 | 2003-03-14 | Gd Spa | METHOD AND MACHINE FOR THE PRODUCTION OF A RIGID CIGARETTE PACKAGE |
JP4060649B2 (en) * | 2002-05-20 | 2008-03-12 | 日本ダイスチール株式会社 | Crease type and crease device |
DE10241798A1 (en) * | 2002-09-06 | 2004-03-18 | Focke Gmbh & Co. Kg | Process for manufacturing folding boxes |
JP2004098586A (en) * | 2002-09-12 | 2004-04-02 | Tadashi Hashimoto | Plastic sheet with folding ruled line |
ITBO20020705A1 (en) * | 2002-11-07 | 2004-05-08 | Gd Spa | MACHINE AND METHOD FOR THE CREATION OF A PACKAGE. |
GB0305661D0 (en) * | 2003-03-12 | 2003-04-16 | British American Tobacco Co | Smoking article pack blank(s) |
ITBO20030576A1 (en) * | 2003-10-08 | 2005-04-09 | Gd Spa | METHOD AND UNIT FOR RESTING A BLOCKED FLOOR INTENDED FOR THE REALIZATION OF A RIGID WRAP |
ITBO20060215A1 (en) * | 2006-03-29 | 2006-06-28 | Gd Spa | MACHINE AND METHOD FOR PACKAGING CIGARETTES. |
ES2573676T3 (en) * | 2007-05-01 | 2016-06-09 | Japan Tobacco Inc. | Package of smoking articles with rod form and its starting piece |
JP2009132049A (en) * | 2007-11-30 | 2009-06-18 | Tomei Kogyo Kk | Processing apparatus for corrugated cardboard sheet |
DE102008005407A1 (en) * | 2008-01-21 | 2009-07-23 | Focke & Co.(Gmbh & Co. Kg) | Method and device for producing packages for cigarettes |
GB201104265D0 (en) * | 2011-03-14 | 2011-04-27 | British American Tobacco Co | Pack |
WO2012131834A1 (en) * | 2011-03-25 | 2012-10-04 | 日本たばこ産業株式会社 | Method for forming ruled line on blank, package manufacturing method incorporating same, and package |
JP5664494B2 (en) | 2011-08-05 | 2015-02-04 | 新日鐵住金株式会社 | Planning support apparatus, planning support method, and computer program |
DE102011113401A1 (en) | 2011-09-16 | 2013-03-21 | Focke & Co. (Gmbh & Co. Kg) | Method and device for producing cigarette packets |
-
2014
- 2014-08-28 WO PCT/JP2014/072547 patent/WO2016031010A1/en active Application Filing
-
2015
- 2015-08-28 CN CN201580055859.5A patent/CN107074382B/en active Active
- 2015-08-28 EP EP15836822.5A patent/EP3176097A4/en active Pending
- 2015-08-28 EP EP20190039.6A patent/EP3753854A1/en active Pending
- 2015-08-28 JP JP2016545653A patent/JP6295336B2/en active Active
- 2015-08-28 KR KR1020177008436A patent/KR101979129B1/en active IP Right Grant
- 2015-08-28 RU RU2017109963A patent/RU2672343C2/en active
- 2015-08-28 WO PCT/JP2015/074503 patent/WO2016031984A1/en active Application Filing
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WO2016031984A1 (en) | 2016-03-03 |
CN107074382A (en) | 2017-08-18 |
KR101979129B1 (en) | 2019-05-15 |
CN107074382B (en) | 2020-03-03 |
EP3753854A1 (en) | 2020-12-23 |
WO2016031010A1 (en) | 2016-03-03 |
JP6295336B2 (en) | 2018-03-14 |
JPWO2016031984A1 (en) | 2017-04-27 |
KR20170047350A (en) | 2017-05-04 |
EP3176097A4 (en) | 2018-09-19 |
RU2017109963A (en) | 2018-10-01 |
RU2672343C2 (en) | 2018-11-13 |
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