WO2016031984A1

WO2016031984A1 - Blank supply device and blank supply method using same

Info

Publication number: WO2016031984A1
Application number: PCT/JP2015/074503
Authority: WO
Inventors: 仁丹保; 大輔隅; 鈴木　慎也
Original assignee: 日本たばこ産業株式会社
Priority date: 2014-08-28
Filing date: 2015-08-28
Publication date: 2016-03-03
Also published as: EP3176097A4; JP6295336B2; EP3176097A1; KR101979129B1; WO2016031010A1; CN107074382B; EP3753854A1; RU2672343C2; KR20170047350A; CN107074382A; JPWO2016031984A1; RU2017109963A

Abstract

A supply device (8) for supplying blanks (10), which are for forming the outer box (14) of a package, toward a packaging machine (12) is equipped with: a conveyance path (26) for conveying blanks one by one along a conveyance surface (40); and a pair of rollers (30) disposed so as to be rotatable on either side of the conveyance surface and having, on the outer circumferential surfaces (42c, 44c), pressing regions (46, 52) for pressing band-shaped regions (24) of the blanks corresponding to the corners (16) of the outer box while feeding the blanks. One (42) of the pair of rollers has multiple cutting edges (48) in the pressing regions and when the blanks pass between the pair of rollers, the cutting edges form multiple incision lines (58, 90, 94, 96) in the band-shaped regions of the blank to reduce the bending strength of said band-shaped regions.

Description

Blank supply apparatus and blank supply method using the same

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blank supply device and a blank supply method using the same, and in particular, a supply device for supplying a blank forming an outer box of a package such as a cigarette hinge lid package toward a packaging machine and a blank using the same. Relates to the supply method.

Patent Document 1 discloses a package manufacturing apparatus that prints a material web in accordance with the package design, then cuts the blank from the material web, and punches or embosses the blank.

International Publication No. 2013/037463 Pamphlet

Some package outer boxes are formed with rounded edges at the corners along the longitudinal direction. In order to manufacture such an outer box, it is necessary to process a folding line in the region of the rounded edge of the blank forming the outer box, and to perform a preliminary process at the time of molding.

Conventionally, the processing of unfolded blanks before folding has been entrusted to a printing manufacturer that performs blank printing. Specifically, a printing maker prints on a material web before being separated into individual blanks, and performs a punching process by a platen method using a platen or the like. At this time, the above-described folding lines were also collectively formed as pressure lines by embossing, and at the same time, the material web was cut to form individual blanks.

In recent years, since a variety of designs are required for the outer box of the package, a complicated shape is often required for the blank punching part and the folding line. When the shape of the folding line is different, it is necessary to prepare a platen suitable for the shape, which increases manufacturing costs. In addition, in order to reliably form the folding line in the blank, it is necessary to finely adjust the pressure to press the platen, compared to the case where only the punched portion is formed in the blank, and the entire platen is uniform. Must be pressed into. If the pressing force of the platen is not appropriate or the pressing force is biased in the platen, the folding line formed on the blank may be too shallow or too deep. Such a problem of the folding line also depends on the basis weight and density of the material web used for the blank.

If the fold line formed on the blank is too shallow, the repulsive force (restoring force) for the blank to return to the flat state before folding becomes large, so it is difficult to form a rounded edge in the process of folding the outer box in the package packaging machine. . For this reason, unintentional bulging of the outer box, and hence separation of the adhesive sections of the blank due to the bulging occurs, and there is a possibility that the outer box and thus the package becomes defective.

On the other hand, if the folding line formed in the blank is too deep, the platen will bite into the material web, making it difficult to separate the platen from the material web. Further, since the adjacent sections of the blank may be divided at the folding line, the blank may be a defective product.
In addition, in the preliminary processing in forming the outer box of the package, in addition to processing the folding line in the blank, a preliminary folding step of imparting a folding shape to the blank by preliminarily folding the blank may be performed. .

In such a preliminary folding process, particularly when a blank having a small paper thickness is used, the repulsive force for returning the blank to the flat state before folding is small. For this reason, when the folding part of a blank is an inner side flap located inside an outer case, the inner side flap will be in the posture inclined too much inside the outer case. In this, the inner side flap and the outer side flap located outside the outer box at the time of molding the outer box are separated from each other, and each facing flap cannot be suitably joined by gluing or the like, The box and thus the package may be defective.

The present invention has been made in view of such a problem, and the object of the present invention is to control the blank folding shape, thereby suppressing variations in the quality of the blank, and the productivity of the outer box and thus the package. It is an object of the present invention to provide a blank supply apparatus and a blank supply method using the same, which can improve the quality easily.

In order to achieve the above object, a blank supply device of the present invention is a supply device that supplies a blank forming an outer box of a package toward a packaging machine, and the supply device is from a blank supply source to a packaging machine. The transfer path for extending the blanks one by one along the transfer surface and the transfer path are arranged so as to be rotatable with the transfer surface interposed therebetween, and the blank strip region corresponding to the corner edge of the outer box is pressed on the outer peripheral surface while pressing the blank A pair of rollers having a pressing area for feeding out, and one of the pair of rollers has a large number of blades in the pressing area, and when the blank passes between the pair of rollers, the blade is shaped like a strip of blanks. A number of score lines are formed in the region to reduce the bending strength of the band-like region.

On the other hand, the blank supply method of the present invention is a supply method for supplying the blank forming the outer box of the package toward the packaging machine, and the supply method supplies the blank from the blank supply source to the packaging machine on the transfer surface. In this case, a large number of score lines are formed in the blank strip region to reduce the bending strength of the strip strip region while pressing the blank strip region corresponding to the corner of the outer box. A cutting process is included.

According to the blank supply device and the blank supply method using the blank supply device of the present invention, it is possible to easily improve and improve the productivity and quality of the blank, outer box, and package by controlling the folding shape of the blank. it can.

It is a side view of the manufacturing machine of the hinge lid package provided with the supply apparatus of the blank which concerns on 1st Embodiment of this invention. It is a top view of the manufacturing machine of FIG. It is the perspective view which showed the outer case of the hinge lid package of FIG. It is the top view which looked at the unfolded blank for forming the outer box of FIG. 3 from the back surface used as the inner surface of an outer box. It is the front view which looked at the transfer roller of FIG. 1 from the prefolding station side. It is the top view which looked at the blank which passed the transfer roller of FIG. 5 from the back surface. It is the figure which expanded the partial cross section of the blank in which the cut line of FIG. 6 was formed. It is the front view which looked at the preliminary folding station of FIG. 1 from the folding turret side. FIG. 9 is a top view of the preliminary folding station of FIG. 8. It is the front view which showed the modification of the cutting roller of FIG. It is the front view which showed the modification of the receiving roller of FIG. It is a top view of the blank which can be formed when the roller of FIG. 10 or FIG. 11 is used. It is the front view which showed another modification of the cutting roller of FIG. It is a top view of the blank which can be formed when the cutting roller of FIG. 13 is used. It is the perspective view which showed the outer case formed from the blank of FIG. It is the front view which showed another modification of the cutting roller of FIG. It is a top view of the blank which can be formed when the cutting roller of FIG. 16 is used. It is the perspective view which showed the outer case formed from the blank of FIG. It is the perspective view which showed the state which opened the lid of the hinge lid package. It is a top view of the preliminary folding station with which the blank supply apparatus which concerns on 2nd Embodiment of this invention is provided. It is sectional drawing of the outer case shape | molded after performing preliminary folding uniformly in a thin blank. It is sectional drawing of the outer case shape | molded after performing preliminary folding to a thin blank in the preliminary folding station of FIG. It is a top view of the preliminary folding station used as the modification of FIG. FIG. 21 is a front view of a pre-folding station as another modified example of FIG. 20.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
<First Embodiment>
FIG. 1 shows a side view of a manufacturing machine 2 for a hinge lid package 1 (hereinafter sometimes simply referred to as a package 1) provided with a blank supply device according to a first embodiment of the present invention. A plan view of the machine 2 is shown. The manufacturing machine 2 includes a blank magazine (supply source) 4, a suction 6, a blank supply device 8, a blank 10 folding turret (packaging machine) 12, and the like.

FIG. 3 is a perspective view showing the outer box 14 of the package 1 of the present embodiment. In the outer box 14, four corner edges 16 along the longitudinal direction are formed as round edges, and in the case of the present embodiment, each corner edge 16 is constituted by a series of stepwise inclined planes.
FIG. 4 is a plan view of the unfolded blank 10 for forming the outer box 14 of FIG. 3 as viewed from the back surface 18 serving as the inner surface of the outer box 14.

The blank 10 is roughly composed of a center section 20 at the center and a pair of flap sections 22 formed at both ends sandwiching the center section 20. Each flap section 22 is arranged at the center in the longitudinal direction of the blank 10, and is arranged at a group of inner flaps 22 a located inside the outer box 14 when the outer box 14 is molded, and at both ends in the longitudinal direction of the blank 10. And a group of outer flaps 22b positioned on the outer side of the outer box 13 during molding.

As shown in FIG. 4, each inner flap 22a has an adhesive surface 22a1 to which glue or the like is attached, and the inner and

outer flaps

22a and 22b facing each other when the outer box 14 is molded are bonded to each other by the adhesive surface 22a1. Further, the blank 10 is formed having a band-like region 24 corresponding to the corner edge 16 of the outer box 14. The belt-like region 24 extends in parallel with the longitudinal axis of the blank 10 along the transfer path 26 (see FIGS. 1 and 2) provided in the supply device 8, and extends in two places across the center section 20 and the pair of flap sections 22. Is formed.

As shown in FIGS. 1 and 2, a large number of blanks 10 shown in FIG. From the bottom of the blank magazine 4, the blanks 10 are sucked one by one by the suction 6 and are continuously drawn out toward the supply device 8.
The supply device 8 includes a transfer path 26,

transfer rollers

28, 30, 32,

transfer disks

34, 36, a pre-folding station 38, and the like.

The transfer path 26 extends from the blank magazine 4 to the preliminary folding station 38 and then to the folding turret 12, and the blank 10 is moved along the transfer surface 40 of the transfer path 26 by the

transfer rollers

28 and 30 and the

transfer disks

34 and 36. Transfer one by one. The

transfer rollers

28 and 30 and the

transfer disks

34 and 36 are appropriately arranged at intervals at which the blank 10 drawn from the blank magazine 4 to the transfer path 26 can be sequentially transferred one by one toward the preliminary folding station 38 and then toward the folding turret 12. ing.

The transfer roller 28 includes a pair of

rollers

28a and 28b that can rotate with the transfer surface 40 interposed therebetween. As the blank 10 passes between the

rollers

28a and 28b, the pair of

rollers

28a and 28b sandwich the blank 10 while rotating at the same peripheral speed, and feed and transfer one by one along the transfer path 26. The transfer roller 30 also feeds and transfers the blank 10 in the same manner as the transfer roller 28.

The

transfer disks

34, 36 are rotatably arranged above the transfer surface 40, and the blank 10 passes under the

transfer disks

34, 36 so that the

transfer disks

34, 36 pass the blank 10 forward of the transfer path 26. It is transported by extruding it.
FIG. 5 is a front view of the transfer roller 30 as viewed from the preliminary folding station 38 side. The transfer roller 30 is disposed immediately upstream of the preliminary folding station 38, and includes a cutting roller 42 disposed on the upper side of the transfer surface 40 and a receiving roller 44 disposed on the lower side of the transfer surface 40. .

The cutting roller 42 includes a drive shaft 42b that rotationally drives the roller body 42a in the direction of the arrow. On the roller body 42 a, that is, on the outer peripheral surface 42 c of the cutting roller 42, band-like pressing areas 46 are formed at positions corresponding to the above-described band-like areas 24 of the blank 10. And in these press area | regions 46, many blades 48 are formed over the perimeter of the outer peripheral surface 42c. Each blade 48 has a tip 48a along the circumferential direction of the outer peripheral surface 42c. The tip 48a of the blade 48 is processed into an acute V shape, and the tip length of each blade 48 is substantially the same. The roller main body 42a and the drive shaft 42b are configured to be detachable with bolts 50.

On the other hand, the receiving roller 44 also includes a drive shaft 44b that rotates and drives the roller body 44a in the direction of the arrow. On the roller main body 44 a, that is, on the outer peripheral surface 44 c of the receiving roller 44, strip-shaped pressing regions 52 are formed flat at positions corresponding to the strip-shaped regions 24 of the blank 10. The roller main body 44a and the drive shaft 44b are configured to be detachable with bolts 54.

The blades 48 formed in each pressing area 46 of the outer peripheral surface 42 c of the cutting roller 42 protrude with a predetermined gap G toward each pressing area 52 of the outer peripheral surface 44 c of the receiving roller 44. The drive shaft 42 b of the cutting roller 42 and the drive shaft 44 b of the receiving roller 44 are connected to a gap adjusting device 56. The gap adjusting device 56 is configured to be able to adjust the gap G between the cutting roller 42 and the receiving roller 44 by moving the

drive shafts

42b and 44b up and down.

FIG. 6 is a plan view of the blank 10 that has passed through the transfer roller 30 as viewed from the back surface 18. When the blank 10 passes between the pair of cutting rollers 42 and the receiving roller 44, the blank 10 is pressed while pressing each belt-shaped region 24 of the blank 10 with the pressing region 46 of the cutting roller 42 and the pressing region 52 of the receiving roller 44. To pay out. At this time, the blade 48 cuts the back surface 18 of each band-like region 24 of the blank 10 at a predetermined depth with respect to the thickness of the blank 10, and forms a large number of cut lines 58 on the back surface 18. The cut line 58 extends in parallel with the longitudinal axis of the blank 10, and thins the band-like region 24 of the blank 10 to reduce the bending strength of the band-like region 24. Further, the gap G between the pair of cutting rollers 42 and the receiving roller 44 is defined according to the depth of the cutting line 58 required for the blank 10.

FIG. 7 is an enlarged view of a partial cross section of the blank 10 in which the cut line 58 is formed. The gap G between the cutting roller 42 and the receiving roller 44 is set in the range of, for example, 20% to 50% of the thickness T (for example, 0.25 mm to 0.35 mm) of the blank 10. In this case, as shown in FIG. 7, a cut line 58 having a constant depth D in the range of, for example, 50% to 80% of the thickness T of the blank 10 forms, for example, an acute valley (V-shaped). A large number of blanks 10 are processed.

As shown in FIGS. 1 and 2, the preliminary folding station 38 is disposed at the preliminary folding position of the transfer roller 30, that is, the transfer path 26 defined immediately downstream of the pair of cutting rollers 42 and the receiving roller 44. . When the blank 10 is positioned at the pre-folding position, the preliminary folding station 38 preliminarily folds the belt-like region 24 of the blank 10 and responds to the rounded edge of the outer box 14 in the belt-like region 24 as shown in FIG. A fold-in shape, more specifically a pre-fold angle, is given.

FIG. 8 is a front view of the preliminary folding station 38 as viewed from the folding turret 12 side, 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 rows (folding elements) 64A and 64B, a lifting device 66, and the like.
The preliminary folding guide 60 is disposed on the table 62, and the blank 10 is overlapped with the table 62.

The preliminary folding guide 60 is formed in a plate shape having outer edges 68 in the vicinity of both ends of the table 62. The outer edge 68 extends along the transfer path 26 and has an arc shape corresponding to the rounded edge of the outer box 14. The outer edge 68 is disposed on both sides of the preliminary folding guide 60 and defines the width of the transfer surface 40. The outer edge 68 is formed to have a radius of curvature R (for example, 2.5 mm) smaller than the radius of curvature of the rounded edge (for example, 4 mm).

When the blank 10 is superimposed on the preliminary folding guide 60, the lower surface 60a of the preliminary folding guide 60 is brought into contact with the blank 10. On the lower surface 60 a of the preliminary folding guide 60, a convex curved surface portion 70 is formed at the center of the cross section of the preliminary folding guide 60 so as to protrude downward, that is, convex on the side opposite to the folding direction of the flap section 22.

Further, a concave curved surface portion 72 is formed on the lower surface 60 a of the preliminary folding guide 60 so as to be connected to both ends of the convex curved surface portion 70 by smooth arcs and to be concave upward, that is, in the folding direction of the flap section 22. Each concave curved surface portion 72 is connected to the outer edge 68 positioned in the vicinity by a smooth arc.
The table 62 forms the transfer path 26, and the blank 10 comes into contact with the upper surface 62 a of the table 62 that becomes the transfer surface 40 of the transfer path 26 when the blank 10 is superimposed on the preliminary folding guide 60.

The upper surface 62a of the table 62 is formed to have a convex curved surface portion 70 formed on the lower surface 60a of the preliminary folding guide 60, a concave curved surface portion 74 corresponding to each concave curved surface portion 72, and each convex curved surface portion 76. . That is, the upper surface 62 a of the table 62 is complementary to the lower surface 60 a of the preliminary folding guide 60. The center section 20 of the blank 10 is sandwiched between the convex curved surface portion 70 and each concave curved surface portion 72 of the preliminary folding guide 60 and the concave curved surface portion 74 and each convex curved surface portion 76 of the table 62 at the preliminary folding position. Pressed.

Each

folding roller row

64A, 64B is disposed in the vicinity of both ends of the outer edge 68 of the preliminary folding guide 60 and has

shafts

65A, 65B extending along the outer edge 68, respectively. For each of the

shafts

65A and 65B, for example, one first folding roller (first folding member, folding roller) 67a and three second folding rollers (second folding member, folding roller) 67b are rotatable. It is supported.

The first folding roller 67a imparts a preliminary folding angle to the inner flap 22a by folding the inner flap 22a, while the second folding roller 67b imparts a preliminary folding angle to the outer flap 22b by folding the outer flap 22b. The first and

second folding rollers

67a and 67b form first and second pressing surfaces 67a1 and 67b1 that are pressed against the outer edge 68 via the belt-like region 24 on the outer peripheral surfaces thereof.

In the case of the present embodiment, the first and

second folding rollers

67a and 67b have a circular cross section with the same diameter, and the first and second pressing surfaces 67a1 and 67b1 have the same radius of curvature, and the preliminary folding angle. The distance between the first pressing surface 67a1 and the outer edge 68 at the time of application is the same as the distance between the second pressing surface 67b1 and the outer edge 68.

Each

folding roller row

64A, 64B is rotatably connected to a link mechanism of the lifting device 66, and when the lifting device 66 is operated, each

folding roller

67a, 67b is a track indicated by an arrow in FIG. Move along 78.
Specifically, when the blank 10 is positioned at the preliminary folding position, first, the blank 10 placed on the table 62 is overlaid on the preliminary folding guide 60, while the flap section 22 having the band-like region 24 of the blank 10. Protrudes from the outer edge 68.

Next, by operating the lifting device 66, each of the

folding rollers

67a and 67b moves along an arc orbit 78 surrounding the outer side of the outer edge 68 located in the vicinity of each of the

folding rollers

67a and 67b. The flap section 22 is folded while pressing along the edge 68. A track 78 along which each

folding roller

67a, 67b moves is represented by a winding angle α (for example, 160 °) of each

folding roller

67a, 67b with respect to the outer edge 68. Thus, the blank 10 having the score line 58 is preliminarily folded at the prefolding station 38 and creased in the band-like region 24 of the blank 10.

As shown in FIGS. 1 and 2, the blank 10 having a fold is fed out from a transfer roller 32 that can transfer the blank 10 while holding the fold, and moved to the folding turret 12. The folding turret 12 is disposed at the main folding position of the transfer path 26 defined downstream of the preliminary folding station 38. When the blank 10 is positioned at the main folding position, the folding turret 12 forms the outer box 14 by folding the blank 10 to form a finished product of the package 1.

Specifically, the folding turret 12 is a turret type packaging machine provided with a turret 80, and is intermittently rotated in a circumferential direction indicated by an arrow in FIG. A plurality of pockets 82 are formed at equal intervals on the outer periphery of the turret 80. As the turret 80 rotates intermittently, each pocket 82 is moved from the inlet 80a of the turret 80 where the end of the transfer path 26 is located toward the outlet 80b of the turret 80 from which the package 1 is carried out.

When the one pocket 82 is positioned at the entrance 80a of the turret 80, the blank 10 is pushed into the pocket 82 by a pusher (not shown). At this time, the flap section 22 is partially folded toward the center section 20 at the cut line 58 formed in the band-like region 24 of the blank 10. Thereafter, in the process of intermittently moving the pocket 82 positioned at the inlet 80a of the turret 80 toward the outlet 80b of the turret 80, the inner pack in which the cigarette is included on the blank 10 partially molded and An inner frame is inserted.

Further, the blank 10 is folded together with the intermittent movement of the pocket 82. The blank 10 coming out from the outlet 80 b has the glue transferred to a part of the flap section 22, and then the flap section 22 is folded and bonded to the center section 20. Finally, the cigarette hinge lid package 1 as a finished product is formed.

As described above, in the present embodiment, the cutting roller 42 constituting the transfer roller 30 has a large number of blades 48 in the pressing area 46 of the outer peripheral surface 42 c, so that the blank 10 corresponding to the corner edge 16 of the outer box 14 is formed. A large number of cut lines 58 can be formed on the back surface 18 of the belt-like region 24. In the process of supplying the blank 10 before packaging of the package 1, by forming the cut line 58 in each blank 10, the processing object can be the blank 10 having a smaller surface area than the material web. The region 24 can be reliably thinned, and the bending strength of the band-like region 24 can be effectively reduced.

Specifically, the outer box 14 bulges due to the fold line formed on the blank 10 being too shallow or too deep, and thus the peeling of the adhesive sections of the blank 10 due to the bulge, and the blank 10 are adjacent to each other. The division of the section can be prevented, and the quality including the formability of the outer box 14 and the package 1 can be improved. Therefore, the folding line of the blank 10 can be reliably formed to a desired depth without being influenced by the properties of the material web, and the productivity and quality of the blank 10, the outer box 14, and thus the package 1 can be easily improved. .

Further, since the supply device 8 includes the gap adjusting device 56 that adjusts the gap between the pair of cutting rollers 42 and the receiving roller 44, the depth of the cutting line 58 with respect to the blank 10 can be easily adjusted. Thereby, the productivity and quality of the outer box 14 and by extension, the package 1 can be further improved.

Also, the outer edge 68 of the prefolding guide 60 has a radius of curvature R that is smaller than the radius of curvature of the rounded edge of the outer box 14. As a result, in the preliminary folding of the blank 10, in anticipation of the restoring force that the rounded edge of the outer box 14 tries to return flat when the outer box 14 is molded, the blank 10 is placed in a direction opposite to the direction of the restoring force. Can be folded and folded more firmly. Therefore, the crease can be more strongly creased by the belt-like region 24 of the blank 10, and the quality of the outer box 14 and thus the package 1 can be further improved.

Further, the concave curved surface portions 72 of the convex curved surface portion 70 are formed on the lower surface 60a of the preliminary folding guide 60, and the blank 10 is overlapped by the concave curved surface portions 74 and the convex curved surface portions 76 of the table 62 corresponding to these portions. The Thereby, the blank 10 can be more firmly brazed and folded in the direction opposite to the direction of the restoring force of the rounded edge of the outer box 14 described above. Furthermore, a smooth rounded edge can be easily formed. Therefore, the crease can be more strongly creased by the belt-like region 24 of the blank 10, and the quality of the outer box 14 and thus the package 1 can be further improved.

The present invention is not limited to the first embodiment, and various modifications can be made.
For example, in this embodiment, the blade 48 is formed in the pressing area 46 of the outer peripheral surface 42c of the cutting roller 42 over the whole area of the outer peripheral surface 42c along the circumferential direction of the outer peripheral surface 42c. However, the present invention is not limited to this. For example, as shown in FIG. 10, the blades 48 may be partially arranged in the circumferential direction of the pressing region 46 of the outer peripheral surface 42c.

Further, as shown in FIG. 11, a concave portion 84 may be partially formed in the circumferential direction of the pressing area 52 of the outer peripheral surface 44 c of the receiving roller 44. 11 and 12, when the blank 10 is fed out by the transfer roller 30, the rotational position of the cutting roller 42 or the receiving roller 44 is controlled so that intermittent cutting lines 58 are formed in the belt-like region 24 of the blank 10. Can be formed.

Specifically, as shown in FIG. 12, the top wall 86 formed on the lid of the outer box 14 and the bottom wall 88 formed on the body of the outer box 14 in the band-like region 24 of the blank 10. The outer box 14 having a design that does not form the cut line 58, and thus the package 1, can be formed. Therefore, the variation of the design of the outer box 14 and the package 1 can be greatly increased.

Further, the tip length of each blade 48 may be partially different in the circumferential direction of the pressing area 52. In this case, cut lines 58 having different depths can be formed in the band-like region 24 of the blank 10. In this case, the strength of the crease of the blank 10 in the belt-like region 24 can be controlled, and the quality of the outer box 14 and thus the package 1 can be further improved.

Further, since the cutting roller 42 and the receiving roller 44 are respectively detachable from the roller

main bodies

42a and 44a, the transfer roller 30 in the form of FIGS. 10 and 11 can be easily configured by replacing the roller

main bodies

42a and 44a. be able to. Moreover, it is easy to change to the blank 10 of FIGS. 14 and 17 to be described later, and by extension, the outer box 14 of FIGS. 15 and 18.

Specifically, as shown in FIG. 13, the blade 48 of the cutting roller 42 may have a shape having a tip 48 b inclined in the pressing region 46 with respect to the circumferential direction of the outer peripheral surface 42 c. In this case, as shown in FIG. 14, a large number of cut lines 90 that are inclined with respect to the longitudinal axis of the blank are formed in the band-like region 24 of the blank 10. Then, by selecting the paper quality of the material web, as shown in FIG. 15, it is possible to form the outer box 14 having a design in which the oblique line pattern 92 can be seen through the corner edges 16 that are rounded edges.

Further, as shown in FIG. 16, a blade 48 having a first tip 48c inclined with respect to the circumferential direction of the outer peripheral surface 42c and a second tip 48d intersecting with the first tip 48c is formed. Also good. Such a blade 48 can be formed by processing the pressing region 46 into a mesh shape by knurling or the like. In this case, as shown in FIG. 17, a large number of cut lines 94 that are inclined with respect to the longitudinal axis of the blank 10 and a plurality of cut lines 96 that intersect the cut line 94 are formed in the band-like region 24 of the blank 10. The Then, by selecting the paper quality of the material web, as shown in FIG. 18, it is possible to form the outer box 14 having a design in which the mesh pattern 98 can be seen through the rounded corner edges 16.

Further, as shown in FIGS. 14 and 15, by forming the cut lines 90, 94, 96 inclined with respect to the longitudinal axis of the blank 10, one blade 48 has a band shape of the blank 10 for some reason. Even if the region 24 is deeply cut into the region 24, it is possible to avoid that adjacent sections of the blank 10 are completely divided at least at the cut lines 90, 94, 96.

In the present embodiment, the cut lines 58, 90, 94, and 96 are formed on the back surface 18 of the belt-like region 24 of the blank 10.

Lines

58, 90, 94, 96 may be formed. Thus, by applying the present invention, various cut lines can be formed at various locations according to the design required for the outer box 14.

In the present embodiment, the blank 10 is transported with its longitudinal axis arranged in the direction along the transfer path 26, but the blank 10 is transported with the longitudinal axis arranged in a direction perpendicular to the transport path 26. Also good. In this case, the cut line 58 is formed at the corner edge between the top wall 86 formed in the lid and the body of the outer box 14, or between the body of the outer box 14 and its bottom wall 88. It is possible to further increase variations in the design of the outer box 14 and thus the package 1.

Further, the number of the

transfer rollers

28, 30, 32 and the

transfer disks

34, 36 described in this embodiment is not limited to this embodiment. For example, the

transfer disks

34 and 36 may not be disposed, and only the transfer roller 30 having the cutting roller 42 may be disposed immediately upstream of the preliminary folding station 38.

Moreover, although this embodiment demonstrated the case where the cut line 58 was formed in the blank 10 which forms the hinge lid package 1, this invention is not limited to the hinge lid package 1, and forms an inner frame of various packages and packages. It can also be applied to the blank 10 to be performed.

FIG. 19 is a perspective view showing a state in which the lid 100 of the hinge lid package 1 is opened. An inner frame 102 is bonded in the outer box 14 of the hinge lid package 1. Each blank 10 of the outer box 14 and the inner frame 102 has a different printing state required on the surface of the blank 10 depending on the product brand, and the fiber basis weight of the blank 10 (for example, 200 to 250 g / m 2) The density also has different material properties.

For example, it is a common practice to provide a convex portion (not shown) on a part of the inner frame 102 so that the lid 100 can be easily locked to the inner frame 102 and the lid of the lid 100 is improved. In this case, the inner frame 102 has a relatively high fiber density (for example, 0.8-1. A blank 10 made of 0 g / cm3) material is used. The present invention can be applied not only to the outer box 14 but also to the blank 10 having various material characteristics required for the inner frame 102.

Second Embodiment
Hereinafter, with reference to FIG. 20 to FIG. 24, a preliminary folding station included in the blank supply device according to the second embodiment will be described. The contents different from the first embodiment will be mainly described, and the other contents may be omitted by adding the same reference numerals in the drawings.

As shown in FIG. 20, in the preliminary folding station 104, 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. . Specifically, in the case of the present embodiment, the first folding roller 67a has a circular cross section having a smaller diameter than the second folding roller 67b, and the first pressing surface 67a1 has a curvature that is greater than the second pressing surface 67b1. The radius is small and the distance between the first pressing surface 67a1 and the outer edge 68 when the preliminary folding angle is applied is larger than the distance between the second pressing surface 67b1 and the outer edge 68.

As described above, in the present embodiment, when a blank having a small paper thickness is used, the repulsive force for returning the blank to a flat state before folding is small. Therefore, for example, when the first and second pressing surfaces 67a1 and 67b1 have the same radius of curvature by the first and

second folding rollers

67a and 67b having the same diameter as in the first embodiment, as shown in FIG. When the outer box 14 is molded, the inner flap 22a positioned inside the outer box 14 is inclined too much to the inner side of the outer box 14, and the preliminary folding angle of the inner flap 22a is increased. In this case, when forming the outer box 14, the inner flap 22a and the outer flap 22b are separated from each other, and the opposing

flaps

22a and 22b cannot be suitably joined together by gluing or the like. The box 14 and thus the hinge lid package 1 may be defective.

On the other hand, in the case of the second embodiment, the first folding roller 67a has a circular cross section having a smaller diameter than the second folding roller 67b, and the first pressing surface 67a1 has a radius of curvature smaller than that of the second pressing surface 67b1. As a result, the distance between the first pressing surface 67a1 and the outer edge 68 when the preliminary folding angle is applied is made larger than the distance between the second pressing surface 67b1 and the outer edge 68. Thereby, the preliminary folding angle with respect to the inner side flap 22a can be made small, and the crease | fold to the strip | belt-shaped area | region 24 can be weakened by extension.

Therefore, as shown in FIG. 22, the inner flap 22 a can be placed upright inside the outer box 14 when the outer box 14 is molded. Thus, in the preliminary folding process of the blank 10, by controlling the folding shape to be different between the inner flap 22a and the outer flap 22b, as in the case of the first embodiment, variations in the quality of the blank 10 can be achieved. It is possible to easily improve and improve the productivity and quality of the outer case 14 and thus the hinge lid package 1.

The present invention is not limited to the second embodiment, and various modifications can be made.
For example, in the preliminary folding station 106 shown in FIG. 23, the first and

second folding rollers

67a and 67b have the same diameter, but the first outer edge 68a that presses the first folding roller 67a out of the outer edges 68 is outside. The transfer surface 40 of the preliminary folding guide 60 is formed so as to be smaller than the second outer edge 68b that presses the second folding roller 67b of the edge 68.

Even in this case, the distance between the first pressing surface 67a1 and the outer edge 68 when the preliminary folding angle is given is larger than the distance between the second pressing surface 67b1 and the outer edge 68. Therefore, the pre-folding angle of the inner flap 22a is reduced, and as a result, the crease in the band-like region 24 is weakened, so that the inner flap 22a can be placed upright inside the outer box 14 when the outer box 14 is molded. It is.

Further, by controlling the operation of the lifting device 66, the winding angle α of the first and

second folding rollers

67a and 67b with respect to the outer edge 68 can be made different from each other, so that the inner flap 22a and the outer flap 22b are folded. It is possible to perform control for differentiating. Specifically, by making the winding angle α of the first folding roller 67a smaller than the winding angle α of the second folding roller 67b, the preliminary folding angle of the inner flap 22a is reduced, and as a result When the creasing is weakened, the inner flap 22a can be brought into an upright posture inside the outer box 14 when the outer box 14 is molded.

In the preliminary folding station 108 shown in FIG. 24, two

folding block rows

108A and 108B are provided in place of the two

folding roller rows

67a and 67b. Each

folding block row

108A, 108B is composed of, for example, one first folding block (first folding member, folding block) 110a and three second folding blocks (second folding member, folding block) 110b.

Each

folding block

110a, 110b is connected to a slide mechanism (not shown) so as to freely advance and retract. The first folding block 110a gives a preliminary folding angle to the inner flap 22a by folding the inner flap 22a, while the second folding block 110b gives a preliminary folding angle to the outer flap 22b by folding the outer flap 22b.

The first and

second folding blocks

110a and 110b are formed with first and second pressing surfaces 110a1 and 110b1 that are pressed against the outer edge 68 via the belt-like region 24 on the concave surface facing the outer edge 68 of the preliminary folding guide 60. Has been. The first pressing surface 110a1 has a larger radius of curvature than the second pressing surface 110b1. Therefore, the pre-folding angle of the inner flap 22a is reduced, and as a result, the crease in the band-like region 24 is weakened, so that the inner flap 22a can be placed upright inside the outer box 14 when the outer box 14 is molded. It is.

Also, by controlling the operation of the slide mechanism, the distance that the first folding block 110a slides toward the outer edge 68 is made smaller than the distance that the second folding block 110b slides toward the outer edge 68. Thus, the distance between the first pressing surface 110a1 and the outer edge 68 when the preliminary folding angle is applied is larger than the distance between the second pressing surface 110b1 and the outer edge 68. Therefore, the pre-folding angle of the inner flap 22a is reduced, and as a result, the crease in the band-like region 24 is weakened, so that the inner flap 22a can be placed upright inside the outer box 14 when the outer box 14 is molded. It is.

Finally, the present invention can be realized not only by the combination of the first and second embodiments but also by the configuration of the second embodiment alone. That is, without forming the cut line 58 in the band-like region 24 of the blank 10 by the cutting roller 42, the variation in the quality of the blank 10 is suppressed only by the strength of the crease on the blank 10 in the preliminary folding station described above. Of course, the productivity and quality of the hinge lid package 1 can be easily improved.

1 Hinge lid package (package)
4 Blank magazine (supply source)
8 Supply device 10 Blank 12 Folding turret (packaging machine)
14 outer box 16 square edge 18 back surface 22 flap section 22a inner flap 22b outer flap 24 belt-like region 26 transfer path 30 transfer roller (a pair of rollers)
38 Pre-folding station 40 Transfer surface 42 Cutting roller (one of the rollers)
42c Outer peripheral surface 44 Receiving roller (the other roller)
44c outer peripheral surface 46 pressing area 48 blade 48a tip 48b along the circumferential direction of the outer peripheral surface tip 48c inclined with respect to the circumferential direction of the outer peripheral surface first tip 48d inclined with respect to the circumferential direction of the outer peripheral surface Intersecting second tip 52 Pressing area 56 Gap adjusting device 58 Cut line 60

Pre-folding guide

64A, 64B Folding roller row (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 Outer edge 70 Convex curved surface part 72 Concave curved surface part 78 Track 84 Concave part 90 Cut line 94 Cut line 96

Cut line

108A, 108B Folding block row (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

A supply device for supplying a blank forming a package outer box to a packaging machine,
The supply device includes:
A transfer path extending from the supply source of the blank to the packaging machine and transferring the blanks one by one along a transfer surface;
A pair of rollers that are rotatably arranged across the transfer surface and have a pressing area for feeding out the blank while pressing the strip-shaped area of the blank corresponding to the corner edge of the outer box on the outer peripheral surface. And
One of the pair of rollers has a large number of blades in the pressing area, and when the blank passes between the pair of rollers, the blade is bent to the band-shaped area of the blank. A blank supply device that forms a large number of score lines that reduce the number of cut lines.
2. The blank supply device according to claim 1, further comprising a gap adjusting device for adjusting a gap between the pair of rollers.
The blank supply device according to claim 1, wherein the blade is partially provided in a circumferential direction of the pressing area.
The blank supply device according to claim 1, wherein a concave portion is partially provided in the circumferential direction of the pressing region on the other of the pair of rollers.
The blank supply device according to any one of claims 1 to 4, wherein the pair of rollers forms the cut line on a back surface of the belt-like region of the blank which is an inner surface of the outer box.
The blank supply device according to any one of claims 1 to 5, wherein one of the pair of rollers is disposed on an upper side with respect to the transfer surface.
The blank supply device according to any one of claims 1 to 6, wherein the blade is formed to have a tip along a circumferential direction of the outer peripheral surface in the pressing region.
The blank supply device according to any one of claims 1 to 6, wherein the blade is formed to have a tip inclined with respect to a circumferential direction of the outer peripheral surface in the pressing region.
The blade is formed to have a first tip that is inclined with respect to a circumferential direction of the outer peripheral surface in the pressing region, and a second tip that intersects the first tip. The blank supply apparatus as described in any one of 1-6.
The blank feeding device according to any one of claims 7 to 9, wherein a tip of the blade has an acute V shape.
The blank feeding device according to claim 10, wherein the blade has a tip length partially different in a circumferential direction of the pressing region.
The blank supply device according to any one of claims 1 to 11, wherein a longitudinal axis of the blank is along the transfer path.
When the blank is positioned at the preliminary folding position defined downstream of the pair of rollers and the blank is positioned at the preliminary folding position, the belt-shaped area of the blank is preliminarily folded, and a preliminary folding angle is set in the belt-shaped area. The blank supply device according to any one of claims 1 to 12, further comprising a pre-folding station for applying.
A supply device for supplying a blank forming a package outer box to a packaging machine,
The supply device includes:
A transfer path extending from the supply source of the blank to the packaging machine and transferring the blanks one by one along a transfer surface;
A pair of rollers that are rotatably arranged across the transfer surface and that feed out the blank;
When the blank is positioned at the preliminary folding position defined downstream of the pair of rollers and the blank is positioned at the preliminary folding position, the belt-shaped area of the blank is preliminarily folded, and a preliminary folding angle is set in the belt-shaped area. A blank supply device comprising a pre-folding station for applying.
The preliminary folding station is
The blank is disposed on the transfer path and has an outer edge extending along the transfer path. When the blank is positioned at the pre-folding position, the blank is overlapped, and the band-shaped region of the blank is provided. A pre-folding guide with a flap section protruding from the outer edge;
A folding element disposed in the vicinity of the outer edge of the preliminary folding guide and having an axis extending along the outer edge;
15. A blank according to claim 13 or 14, wherein the folding element defines the pre-folding angle of the flap section relative to the blank by folding the flap section while pressing the strip region along the outer edge. Feeding device.
The banded region of the blank forms a rounded edge at the corner edge;
The blank feeding device according to claim 15, wherein the outer edge has a radius of curvature smaller than a radius of curvature of the rounded edge.
The preliminary folding guide has a convex curved surface portion that is convex on the side opposite to the folding direction of the flap section,
The blank supply device according to claim 16, wherein the blank is overlapped with the convex curved surface portion at the preliminary folding position.
The preliminary folding guide is connected to both ends of the convex curved surface portion with a smooth arc, and further includes a concave curved surface portion that is concave in the folding direction of the flap section, and the concave curved surface portion is formed with a smooth arc on the outer edge. Are connected,
The blank supply device according to claim 17, wherein the blank is superimposed on the convex curved surface portion and the concave curved surface portion at the preliminary folding position.
The flap section includes an inner flap positioned inside the outer box when the outer box is molded, and an outer flap positioned outside the outer box when the outer box is molded,
The folding element includes a first folding member that folds the inner flap, and a second folding member that folds the outer flap,
The blank supply device according to any one of claims 15 to 18, wherein the first and second folding members impart different preliminary folding angles to the inner and outer flaps.
The first and second folding members respectively have first and second pressing surfaces for imparting the preliminary folding angle to the band-shaped region while pressing the band-shaped region along the outer edge.
The blank supply device according to claim 19, wherein a distance between the first pressing surface and the outer edge when the preliminary folding angle is applied is larger than a distance between the second pressing surface and the outer edge.
The outer edge is disposed on both sides of the preliminary folding guide to define the width of the transfer surface;
21. In the preliminary folding guide, the transfer surface is formed so that a first outer edge that presses the first folding member is smaller than a second outer edge that presses the second folding member. The blank supply device described in 1.
The first and second folding members are folding rollers that move along a track surrounding the outside of the outer edge and fold the inner and outer flaps while pressing the belt-like region along the outer edge. The blank supply device according to any one of 19 to 21.
22. The folding block according to claim 19, wherein the first and second folding members are folding blocks that move in a direction that matches the outer edge and that fold the inner and outer flaps while pressing the belt-shaped region against the outer edge. The blank supply apparatus according to claim 1.
The blank supply apparatus according to any one of claims 1 to 23, wherein the package is a hinge lid package.
A supply method for supplying a blank forming a package outer box toward a packaging machine,
The supply method is:
The blanks are transferred one by one along the transfer surface from the blank supply source to the packaging machine. At this time, while pressing the strip-shaped region of the blank corresponding to the corner edge of the outer box, the blanks A blank supply method including a cutting step of forming a plurality of cutting lines for reducing the bending strength of the belt-like region in the belt-like region.
The supply method is:
When the blank is positioned at a preliminary folding position defined downstream of the cutting process, the blank further includes a preliminary folding step of preliminarily folding the belt-shaped region of the blank and giving a preliminary folding angle to the belt-shaped region. The blank supply method according to claim 25.
A supply method for supplying a blank forming a package outer box toward a packaging machine,
The supply method is:
The blanks are transferred one by one along the transfer surface from the blank supply source to the packaging machine, and when the blanks are positioned at the pre-folding position, the band-shaped regions of the blanks are pre-folded, and the band-shaped A blank supplying method including a preliminary folding step of providing a preliminary folding angle to an area.
In the preliminary folding step, when the blank is positioned at the preliminary folding position, the blank is overlapped, while a flap section provided with the band-shaped region of the blank is projected from an outer edge of the preliminary folding guide, 28. The blank feeding method according to claim 26 or 27, wherein the flap section is folded while pressing the belt-like region along the outer edge by a folding element arranged in the vicinity of the outer edge of a prefolding guide.
The flap section includes an inner flap positioned inside the outer box when the outer box is molded, and an outer flap positioned outside the outer box when the outer box is molded,
The folding element includes a first folding member that folds the inner flap, and a second folding member that folds the outer flap,
29. The blank feeding method according to claim 28, wherein in the preliminary folding step, the first and second folding members give different preliminary folding angles to the inner and outer flaps.