KR101979129B1 - Blank supply device and blank supply method using same - Google Patents

Abstract

A feeding device 8 for feeding the blank 10 forming the outer box 14 of the package toward the packaging machine 12 includes a conveying path 26 for conveying the blank one by one along the conveying surface 40, A pressing area for continuously releasing the blank while pressing the band zone 24 of the blank corresponding to the edge 16 of the outer box on the outer peripheral surfaces 42c and 44c, One of the pair of rollers 42 has a plurality of blades 48 in its pressing area and the blank is located between the pair of rollers 30, As it passes, the blade forms a plurality of cutouts 58, 90, 94, 96 that reduce the bending strength of the banded region in the banded region of the blank.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a feeding device for a blank,

The present invention relates to a feeding apparatus for a blank and a feeding method of a blank using the same, and more particularly to a feeding apparatus for feeding a blank forming the outer box of a package such as a cigarette hinged lid package toward a packaging machine, To a method of feeding the same.

Patent Document 1 discloses a package manufacturing apparatus that prints a material web according to the design of a package, separates the blank from the material web, and performs punching or embossing on the blank have.

Patent Document 1: International Publication No. 2013/037463 pamphlet

The outer box of the package may have a rounded shape with corners along its longitudinal direction. In order to manufacture such an outer box, it is necessary to process the fold line in the region of the rounded edge of the blank forming the outer box, and perform preliminary processing on the occasion of molding.

Conventionally, processing of the developed blank before folding has been entrusted to a printing company that prints the blank. Specifically, the printing company prints on a material web before it is separated into individual blanks, and performs punching by a platen method using a platen. At this time, the above-mentioned folding line was also formed as a bundle by embossing as a bundle, and at the same time, the material web was cut to form individual blanks.

Nowadays, since the outer box of the package requires a design rich in variations, a complicated shape is often required for the punching portion and the folding line of the blank. When the shape of the folding line is different, it is necessary to prepare a platen conforming to the shape of the folding line, which is costly to manufacture. Further, in order to reliably form the folding line on the blank, it is necessary to slightly adjust the pressure for pressing the platen, as compared with the case where only the stamping portion is formed on the blank, and the entire platen must be uniformly pressed . If the pushing force of the platen is not appropriate or if the pushing force of the platen occurs, the folding line formed in the blank may be too shallow or too deep. The problem of such fold lines is also dependent on the basis weight and density of the material web used in the blank.

If the fold line formed on the blank is too shallow, the repulsive force (restoring force) for returning the blank to the flat state before folding becomes large, so that rounded edges are hardly formed in the process of folding the outer box in the packaging machine of the package. As a result, peeling of the adhesive sections of the blank caused by unintentional buckling of the outer box, and hence, blowing of the outer box may occur, which may result in defective products in the outer box and thus the package.

On the other hand, if the fold line formed on the blank is too deep, the platen enters the material web too deeply, making it difficult to separate the platen and the material web. Further, there is also a possibility that the adjacent blank sections of the blank are divided in the fold line, so that the blank may become defective.

In the preliminary processing for forming the outer box of the package, there is a case where the blank is preliminarily folded in addition to the folding line for the blank, thereby carrying out the preliminary folding step of giving the folded shape to the blank .

In the preliminary folding process, particularly when a blank having a small paper thickness is used, the repulsive force of the blank to return to the flat state before folding is small. For this reason, when the folded portion of the blank is an inner flap located inside the outer box, the inner flap becomes too tilted to the inner side of the outer box. In this case, the inner flap and the outer flap located outside the outer box at the time of molding the outer box are spaced apart, so that the opposed flaps can not be suitably joined together by polymerizing and pasting, etc., Further, the package may become a defective product.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a method and apparatus for controlling a folded shape of a blank to suppress unevenness in quality of a blank, And a method of feeding a blank using the same.

In order to achieve the above object, a feeding apparatus of a blank of the present invention is a feeding apparatus for feeding a blank forming a lateral box of a package toward a packaging machine, the feeding apparatus being extended from a supply source of the blank to a packaging machine, A conveying path for conveying the blank one by one along the face, and a pressing region for continuously conveying the blank while pressing the band-shaped region of the blank corresponding to the edge of the outer box on the outer peripheral surface, One of the pair of rollers has a plurality of blades in its pressing area and when the blank passes between the pair of rollers, the blade rotates in the band-shaped area of the blank, Thereby reducing the bending strength.

On the other hand, a feeding method of a blank according to the present invention is a feeding method for feeding a blank forming an outer box of a package toward a packaging machine, wherein the feeding method is such that a blank is fed from the supply source of the blank to the packaging machine, At this time, a cutting process is performed to form a plurality of cut-outs for reducing the bending strength of the band-shaped region in the band-shaped region of the blank while pressing the band-shaped region of the blank corresponding to the edge of the outer box.

The feeding device of the blank of the present invention and the feeding method of the blank using it can easily improve the productivity and quality of the blank, the outer box, and the package by controlling the folded shape of the blank.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a hinge lead package manufacturing machine provided with a blank feeding device according to a first embodiment of the present invention.
2 is a plan view of the manufacturing machine of Fig. 1;
3 is a perspective view showing an outer box of the hinge lead package of FIG. 1;
Fig. 4 is a plan view of the unfolded blank for forming the outer box of Fig. 3 as seen from the back surface, which is the inner surface of the outer box;
FIG. 5 is a front view of the conveying roller of FIG. 1 viewed from the side of the preliminary folding station;
FIG. 6 is a plan view of a blank having passed through the conveying roller of FIG. 5 as viewed from the back;
7 is an enlarged view of a partial cross-section of a blank in which the folding line of Fig. 6 is formed; Fig.
8 is a front view of the preliminary folding station of FIG. 1 as viewed from the folding turret side;
9 is a front view of the preliminary folding station of FIG.
10 is a front view showing a modification of the cutting roller shown in Fig. 5;
11 is a front view showing a modification of the receiving roller of Fig. 5;
12 is a plan view of a blank which can be formed when the rollers of Figs. 10 or 11 are used. Fig.
13 is a front view showing another modification of the cutting roller of Fig. 5;
14 is a plan view of a blank which can be formed when the cutting roller of Fig. 13 is used. Fig.
15 is a perspective view showing an outer box formed from the blank of FIG. 14;
FIG. 16 is a front view showing another modification of the cutting roller in FIG. 5;
17 is a plan view of a blank which can be formed when the cutting roller of Fig. 16 is used. Fig.
18 is a perspective view showing an outer box formed from the blank of FIG. 17;
19 is a perspective view showing a state in which a lead of the hinge lead package is opened;
20 is a front view of a preliminary folding station provided in a blank feeding device according to a second embodiment of the present invention.
21 is a cross-sectional view of an outer box formed after uniformly performing preliminary folding on a thin blank;
22 is a cross-sectional view of the outer box formed after preliminarily folding a thin blank in the preliminary folding station of Fig. 20; Fig.
23 is a front view of the preliminary folding station which is a variation of FIG. 20. FIG.
24 is a front view of the preliminary folding station, which is another modification of FIG. 20. FIG.

Hereinafter, each embodiment 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 of a hinge lead package 1 (hereinafter also simply referred to as a package 1) provided with a supply device for a blank according to a first embodiment of the present invention And Fig. 2 shows a plan view of the manufacturing machine 2. Fig. The manufacturing machine 2 is provided with a blank magazine (supply source) 4, a suction 6, a supply device 8 for a blank, and a folding turret (packing machine) 12 for a blank 10.

3 is a perspective view showing the outer box 14 of the package 1 of the present embodiment. Four corners 16 along the longitudinal direction of the outer box 14 are formed as rounded corners. In the present embodiment, the corners 16 are formed in such a manner that the plane of the station 104 is continuous .

4 is a plan view of the unfolded developed blank 10 for forming the outer box 14 of Fig. 3 as viewed from the back surface 18, which is the inner surface of the outer box 14. Fig.

The blank 10 is schematically constituted by a center section 20 at the center and a pair of flap sections 22 formed at both ends of the center section 20. Each flap section 22 is disposed in the longitudinal center of the blank 10 and includes a plurality of inner flaps 22a located inside the outer box 14 at the time of forming the outer box 14, And a plurality of outer flaps 22b disposed at both ends in the longitudinal direction of the outer box 14 and positioned on the outer side of the outer box 14 at the time of molding the outer box 14. [

As shown in Fig. 4, each inner flap 22a is formed with an adhesive surface 22a1 with a glue sticking thereon. The inner and outer flaps 22a, 22b, 22c, 22a, 22b are adhered to each other. The blank 10 is also formed with a band-like region 24 corresponding to the edge 16 of the outer box 14. This zone 24 extends parallel to the longitudinal axis of the blank 10 along a conveying path 26 (see FIGS. 1 and 2) installed in the feeding device 8, Are formed at two places over the flap sections 22 which are paired.

As shown in Figs. 1 and 2, a plurality of blanks 10 shown in Fig. 4 are stacked on the blank magazine 4. From the bottom of the blank magazine 4, the blanks 10 are sucked one by one by the suction 6, and are drawn out toward the feeding device 8 continuously.

The feeding device 8 is provided with a conveying path 26, conveying rollers 28, 30 and 32, conveying disks 34 and 36, and a preliminary folding station 38 and the like.

The conveying path 26 extends from the blank magazine 4 to the preliminary folding station 38 and further to the folding turret 12 and the blank 10 is conveyed by the conveying rollers 28 and 30 and the conveying discs 34 and 36 ) Along the transport surface 40 of the transport path 26 one by one. The conveying rollers 28 and 30 and the conveying discs 34 and 36 convey the blank 10 drawn from the blank magazine 4 to the conveying path 26 to the preliminary folding station 38 and then to the folding turret 12 And are appropriately arranged at intervals that can be sequentially transported one by one toward each other.

The conveying roller 28 is constituted by a pair of rollers 28a and 28b rotatable with the conveying surface 40 therebetween. The blank 10 passes between the rollers 28a and 28b so that the pair of rollers 28a and 28b are rotated one by one along the conveying path 26 with the blank 10 being rotated at the same peripheral speed Continue export and transport. The conveying roller 30 continues to feed and convey the blank 10 in the same manner as the conveying roller 28. [

The transfer discs 34 and 36 are rotatably arranged on the transfer surface 40 and the blank 10 passes under the transfer discs 34 and 36 so that the transfer discs 34, (10) is transported as if it is extruded forward of the transport path (26).

5 is a front view of the conveying roller 30 as seen from the side of the preliminary folding station 38. Fig. The conveying roller 30 is disposed adjacent to the upstream side of the preliminary folding station 38 and includes a cutting roller 42 disposed on the conveying surface 40 and a receiving roller 42 disposed below the conveying surface 40, And a roller (44).

The cut-off roller 42 has a drive shaft 42b for rotationally driving the roller main body 42a in the direction of the arrow. A band-shaped pressing area 46 is formed on the outer peripheral surface 42c of the roller body 42a, that is, the cutting roller 42 at positions corresponding to the above-described belt-like areas 24 of the blank 10 have. In these pressing regions 46, a plurality of blades 48 are formed over the entire circumference of the outer circumferential surface 42c. Each of the blades 48 has a distal end 48a along the circumferential direction of the outer peripheral surface 42c and the tip end 48a of the blade 48 is machined into a V shape having an acute angle, The tip length of the blade 48 is approximately the same. Further, the roller body 42a and the drive shaft 42b are detachable by the bolts 50. As shown in Fig.

On the other hand, the receiving roller 44 also has a drive shaft 44b for rotationally driving the roller body 44a in the direction of the arrow. A band-shaped pressing area 52 is formed at a position corresponding to each band-shaped area 24 of the blank 10 on the outer peripheral surface 44c of the roller body 44a, that is, the receiving roller 44, have. The roller body 44a and the drive shaft 44b are detachable with bolts 54. [

The blade 48 formed in each pressing area 46 of the outer circumferential surface 42c of the cutting roller 42 has a predetermined gap toward the respective pressing area 52 of the outer circumferential surface 44c of the receiving roller 44, (G). The driving shaft 42b of the cutting roller 42 and the driving shaft 44b of the receiving roller 44 are connected to the gap adjusting device 56. [ The gap adjusting device 56 is configured to adjust the gap G between the cutting roller 42 and the receiving roller 44 by raising and lowering the drive shafts 42b and 44b.

6 is a plan view of the blank 10, which has passed through the conveying roller 30, from the back side 18. When the blank 10 passes between the pair of cut-off roller 42 and the receiving roller 44, the pressing area 46 of the cut-off roller 42 and the pressing area 52 of the receiving roller 44 The blank 10 continues to be ejected while pressing each strip zone 24 of the blank 10. At this time, the blade 48 cuts the back surface 18 of each band-shaped area 24 of the blank 10 to a predetermined depth with respect to the thickness of the blank 10, 58 are formed. The incision improvement 58 extends parallel to the longitudinal axis of the blank 10 and reduces the bending strength of the band zone 24 by thinning the band zone 24 of the blank 10 . The gap G between the pair of cutting roller 42 and the receiving roller 44 is defined according to the depth of the cutout 58 required for the blank 10.

7 is an enlarged view of a part of the cross section of the blank 10 on which the incision 58 is formed. The gap G between the cutting roller 42 and the receiving roller 44 is set to a range of 20% to 50% of the thickness T (0.25 mm to 0.35 mm, for example) of the blank 10 . In this case, as shown in Fig. 7, the incision 58 of the constant depth D within the range of, for example, 50% to 80% of the thickness T of the blank 10 is, for example, (V-shaped) in the blank 10.

1 and 2, the preliminary folding station 38 has a conveying path 26 defined by the conveying roller 30, that is, immediately downstream of the pair of cut-out rollers 42 and the receiving rollers 44, In the preliminary folding position. The preliminary folding station 38 preliminarily folds the band zone 24 of the blank 10 when the blank 10 is positioned in the preliminary fold position to form a band zone 24 are given a folded shape along the rounded edge of the outer box 14, specifically a preliminary folding angle.

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. Fig. The preliminary folding station 38 is provided with a preliminary folding guide 60, a table 62, two folding roller columns (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 an outer rim 68 near both ends of the table 62. The outer frame 68 extends along the conveying path 26 and has an arc shape corresponding to the rounded rim of the outer box 14 and is disposed on both sides of the preliminary folding guide 60, The width of the The outer rim 68 is formed with a radius of curvature R (for example, 2.5 mm) smaller than the radius of curvature of the rounded rim (for example, 4 mm).

When the blank 10 is superimposed on the preliminary folding guide 60, the lower face 60a of the preliminary folding guide 60 comes into contact with the blank 10. The lower surface 60a of the preliminary folding guide 60 is provided with a convex curved surface portion 70 convex downward, that is, a convex curved surface portion 70 convex on the side opposite to the folding direction of the flap section 22 Respectively.

The lower surface 60a of the preliminary folding guide 60 is provided with concave curved surface portions 72 (hereinafter referred to as concave curved surface portions) which are connected to both ends of the convex curved surface portion 70 respectively by smooth arcs and are upwardly concave in the folding direction of the flap section 22. [ Is formed. Each of the concave curved surface portions 72 is connected to a smooth circular arc on the outer edge 68 positioned in the vicinity thereof.

The table 62 forms the conveying path 26 and a blank 10 is provided on the surface 62a of the table 62 serving as the conveying surface 40 of the conveying path 26 to the preliminary folding guide 60 The blank 10 comes into contact when it is polymerized.

The surface 62a of the table 62 is formed with convex curved surface portions 70 formed on the lower surface 60a of the preliminary folding guide 60, concave curved surface portions 74 corresponding to the concave curved surface portions 72, And each convex curved surface portion 76 is formed. That is, the surface 62a of the table 62 forms a complementary shape with the lower surface 60a of the preliminary folding guide 60. [ The center section 20 of the blank 10 has the convex curved surface portion 70 and the concave curved surface portion 72 of the preliminary folding guide 60 and the concave curved surface portion 72 of the table 62 at the preliminary folding position, (74) and each convex curved surface portion (76).

Each of the folding roller rows 64A and 64B is disposed near both ends of the outer frame 68 of the preliminary folding guide 60 and has axes 65A and 65B extending along the outer frame 68 respectively. (First folding member, folding roller) 67a and three second folding rollers (second folding member, folding roller) 67b (first folding member, folding roller) are provided on the respective shafts 65A, 65B, Are rotatably 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 folds the outer flap 22b, The preliminary folding angle is given to the flap 22b. The first and second folding rollers 67a and 67b form first and second pressing surfaces 67a1 and 67b1 on the outer circumferential surface of the first and second folding rollers 67a and 67b, respectively, which are pressed against the outer edge 68 through the belt-

In the case of the present embodiment, the first and second folding rollers 67a and 67b have a circular cross section of the same diameter, the curvature radii of the first and second pressing surfaces 67a1 and 67b1 are the same, The distance between the first pressing surface 67b1 and the outer edge 68 is the same as the distance between the first pressing surface 67a1 and the outer edge 68 at the time of applying the second pressing surface 67b1.

Each of the folding roller rows 64A and 64B is rotatably connected to the link mechanism of the elevating device 66 and the elevating device 66 is operated so that each of the folding rollers 67a and 67b is rotated Along the trajectory 78 indicated by the arrow.

More specifically, when the blank 10 is positioned at the preliminary folding position, the blank 10 placed on the table 62 is first superimposed on the preliminary folding guide 60 while the blank 10 is placed on the table 62, A flap section 22 having a band-shaped region 24 of the flap 22 protrudes from the outer rim 68.

Next, by operating the elevating device 66, the folding rollers 67a and 67b move along the circular arc 78 surrounding the outer edge 68 positioned in the vicinity of each of them, Folds the flap section 22 while pressing the band-shaped region 24 of the flap section 10 along the outer rim 68. The trajectory 78 on which the respective folding rollers 67a and 67b move is represented by a declining angle? (For example, 160 占 of each of the folding rollers 67a and 67b with respect to the outer edge 68). The blank 10 with the incision 58 is thus folded preliminarily at the preliminary folding station 38 and corrugated into the belt zone 24 of the blank 10.

As shown in Figs. 1 and 2, the blank 10 having a crease continues to be fed out from the conveying roller 32 capable of conveying the blank 10 while maintaining the crease, so that the folding turret 12, . The folding turret 12 is disposed at the main folding position of the conveying path 26 defined downstream of the preliminary folding station 38. The folding turret 12 folds the blank 10 to form the outer box 14 and forms the finished product of the package 1 when the blank 10 is positioned at this folding position.

Specifically, the folding turret 12 is a turret-type packing machine having a turret 80 and is intermittently rotated in a circumferential direction indicated by an arrow in Fig. A plurality of pockets (82) are formed in the outer circumferential portion of the turret (80) while maintaining equal spacing. Each of the pockets 82 is rotated by the intermittent rotation of the turret 80 from the inlet 80a of the turret 80 in which the end of the conveying path 26 is located to the outlet 80a of the turret 80, (80b).

When one pocket 82 is positioned at the inlet 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 on the side of the center section 20 in the section 58 formed in the band-shaped region 24 of the blank 10. Thereafter, in a process in which the pocket 82 positioned at the inlet 80a of the turret 80 is intermittently moved toward the outlet 80b of the turret 80, An inner pack and an inner frame are enclosed.

Further, the folding of the blank 10 is performed together with the intermittent movement of the pocket 82. [ The blank 10 from the outlet 80b is 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 hinge lead package 1 of the cigarette as a finished product is formed.

As described above, in the present embodiment, the cutting roller 42 constituting the conveying roller 30 has a plurality of blades 48 in the pressing area 46 of the outer circumferential surface 42c thereof, A plurality of cutouts 58 can be formed in the back surface 18 of the band-shaped area 24 of the blank 10 corresponding to the edge 16. By forming the cut-outs 58 in the individual blank 10 in the feeding process of the blank 10 before packaging the package 1, the object to be processed can be the blank 10 having a smaller surface area than the material web The bending strength of the band-shaped region 24 can be effectively reduced by surely thinning the band-shaped region 24 of the blank 10.

Concretely, the adhesive sections of the blank 10 due to the swelling of the outer box 14, and hence the expansion, due to the fact that the fold line formed in the blank 10 is too shallow or too deep, Separation of the adjacent sections of the blank 10 can be prevented and quality including the formability of the outer box 14 and the package 1 can be improved. Therefore, the folding line of the blank 10 is securely formed at a desired depth without being influenced by the property of the material web, so that the productivity and quality of the blank 10, the outer box 14, So that it can be improved.

Further, by providing the gap adjusting device 56 that adjusts the gap between the pair of cutting rollers 42 and the receiving rollers 44, the depth of the cutout 58 for the blank 10 Can be easily adjusted. As a result, the productivity and quality of the outer box 14, and further the package 1, can be further improved.

The outer edge 68 of the preliminary folding 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. Thereby, in the preliminary folding of the blank 10, the restoring force that the rounded edge of the outer box 14 tends to return to flat when the outer box 14 is formed is predicted, and in the direction opposite to the direction of the restoring force, (10) can be folded out with a stronger and firmer fold. Therefore, the band-shaped region 24 of the blank 10 can be more firmly creased, and the quality of the outer box 14 and further the package 1 can be further improved.

The concave curved surface portion 72 of the convex curved surface portion 70 is formed on the lower surface 60a of the preliminary folding guide 60 and the concave curved surface portion 74 of the table 62 and the concave curved surface portion The blank 10 is polymerized by the curved surface portion 76. Thereby, the blanks 10 can be collapsed with a stronger force in a direction opposite to the restoring force direction of the rounded rim of the outer box 14 described above. Further, a smooth rounded rim can be easily formed. Therefore, the belt-shaped region 24 of the blank 10 can be further strengthened and the quality of the outer box 14 and further the package 1 can be further improved.

The present invention is not limited to the first embodiment, and various modifications are possible.

For example, in the present embodiment, the blade 48 is formed in the pressing region 46 of the outer circumferential surface 42c of the cutting roller 42 over the entire circumferential surface 42c along the circumferential direction of the outer circumferential surface 42c have. However, the present invention is not limited thereto. For example, as shown in Fig. 10, the blade 48 may be partially arranged in the circumferential direction of the pressing region 46 of the outer peripheral surface 42c.

11, the convex portion 84 may be partially formed in the circumferential direction of the pressing region 52 of the outer circumferential surface 44c of the receiving roller 44. In this case, 11 and 12, by controlling the rotational position of the cut-off roller 42 or the receiving roller 44 when the blank 10 is continuously fed by the feed roller 30, the band 10 of the blank 10 It is possible to form the intermittent incision 58 in the shape region 24.

Specifically, as shown in Fig. 12, a top wall 86 formed on the lead of the outer box 14 among the belt-like regions 24 of the blank 10, The outer box 14 and further the package 1 can be formed on the bottom wall 88 formed on the outer surface of the outer casing 14 so as not to form the incision 58. [ Therefore, the variation of the design of the outer box 14 and further the package 1 can be greatly increased.

In addition, the tip length of each blade 48 may be partially different in the circumferential direction of the pressing region 52. In this case, it is possible to form the incision 58 with different depths in the band-shaped region 24 of the blank 10. In this case, it is possible to control the strength of the wrinkles with respect to the band-shaped region 24 of the blank 10, and the quality of the outer box 14 and further the package 1 can be further improved.

The cutting roller 42 and the receiving roller 44 can be detachably attached to the roller main bodies 42a and 44a so that the roller main bodies 42a and 44a can be replaced by the feed roller 30 can be easily configured. It is also easy to change the blank 10 of Figs. 14 and 17 to be described later, and further to the outer box 14 of Figs. 15 and 18.

13, the blade 48 of the cutting roller 42 may have a shape having a distal end 48b of the station 104 with respect to the circumferential direction of the outer peripheral surface 42c in the pressing region 46 . In this case, as shown in Fig. 14, the band-shaped region 24 of the blank 10 is formed with a plurality of incline reduction 90 that is inclined with respect to the longitudinal axis of the blank. By selecting the paper quality of the material web, it is possible to form the outer box 14 having a design in which the oblique line 92 is seen through the corner 16, which is a rounded rim, as shown in Fig.

16, a first edge 48c inclined with respect to the circumferential direction of the outer peripheral surface 42c and a second edge 48d intersecting the first edge 48c 48 may be formed. This blade 48 can be formed by processing the pressing area 46 into a mesh shape by rolette processing or the like. In this case, as shown in Fig. 17, a band-shaped area 24 of the blank 10 is provided with an incline reduction 94 which is inclined with respect to the longitudinal axis of the blank 10, A plurality of incisions 96 are formed. By selecting the paper quality of the material web, it is possible to form the outer box 14 having a design in which the mesh shape 98 is visible on the edge 16, which is a rounded edge, as shown in Fig.

14 and 15, by forming the incline reduction 90, 94, 96 inclined with respect to the longitudinal axis of the blank 10, if, for some reason, one blade 48 is bent It is possible to avoid that the neighboring sections of the blank 10 are completely divided at least in the incision 90, 94, 96, even if they have penetrated too deeply into the band-shaped region 24 of the blank 10.

In the present embodiment, the cut-outs 58, 90, 94, 96 are formed on the back surface 18 of the band-shaped region 24 of the blank 10, (58, 90, 94, 96) may be formed on the surface of the band-shaped region (24). As described above, according to the application of the present invention, it is possible to form various kinds of abutment in various places according to the design required for the outer box 14.

In this embodiment, the blank 10 is conveyed while its longitudinal axis is arranged in the direction along the conveying path 26, but the blank 10 is conveyed in the direction in which the longitudinal axis is orthogonal to the conveying path 26 As shown in FIG. In this case, the incision 58 is formed at the corner between the top wall 86 formed on the lead and the body of the outer box 14, or the body of the outer box 14 and the bottom wall 88, and the variation of the design of the outer box 14 and further the package 1 can be further increased.

The number of the conveying rollers 28, 30, 32 and the conveying disks 34, 36 described in the present embodiment is not limited to this embodiment. For example, the conveying rollers 30 having the cut-off roller 42 may be arranged just beside the upstream of the preliminary folding station 38, without disposing the conveying disks 34 and 36.

Although the embodiment has been described with respect to the case where the cut-out 58 is formed in the blank 10 forming the hinge lead package 1, the present invention is not limited to the hinge lead package 1, It may be applied to a blank 10 that forms an inner frame of a package or a package of a branch.

19 is a perspective view showing a state in which the lead 100 of the hinge lead package 1 is opened. An inner frame 102 is adhered to the outer box 14 of the hinge lead package 1. Each of the blanks 10 of the outer box 14 and the inner frame 102 is different in the printing state required on the surface of the blank 10 due to the difference in the brand of the product, Have a fiber basis weight (for example, 200 to 250 g / m < ² >) or a material characteristic of a different density.

For example, by providing a convex portion (not shown) in a part of the inner frame 102, it is possible to easily fix the lead 100 to the inner frame 102 and improve the lid closing of the lead 100 And is generally performed. In this case, the inner frame 102 is provided with a relatively high fiber density (for example, 0.8 to 0.8 mm) in order to suppress the deterioration of the lid closure of the lead 100 due to the increase in the number of openings and closings of the lead 100, 1.0 g / cm < ³ >) 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, the preliminary folding station provided in the blank feeding apparatus according to the second embodiment will be described. In addition, contents different from those of the first embodiment will be mainly described, and other contents may be omitted by omitting 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 have different curvatures Lt; / RTI > Specifically, in the case of the present embodiment, the first folding roller 67a has a circular cross section with a smaller diameter than the second folding roller 67b, and the first pressing surface 67a1 has a circular cross- The distance between the first pressing surface 67a1 and the outer edge 68 at the time of giving the preliminary folding angle is set to be smaller than the distance between the second pressing surface 67b1 and the outer edge 68 ).

As described above, in the present embodiment, when a blank sheet having a small paper thickness is used, the repulsive force that the blank tries to return to the flat state before folding is small. Therefore, for example, when the curvature radii of the first and second pressing surfaces 67a1 and 67b1 are made equal by the first and second folding rollers 67a and 67b having the same diameter as in the first embodiment, The inner flap 22a positioned inside the outer box 14 at the time of molding the outer box 14 becomes too inclined to the inner side of the outer box 14 and the inner flap 22a ) Becomes larger. This is because the inner flap 22a and the outer flap 22b are separated from each other at the time of molding the outer box 14 so that the facing flaps 22a and 22b are not overlapped with each other And the outer box 14 and further the hinge lead package 1 may become defective.

On the contrary, in the case of the second embodiment, the first folding roller 67a is formed to have a circular cross section smaller in diameter than the second folding roller 67b, and the first pressing surface 67a1 is made to be smaller than the second pressing surface 67b1 The distance between the first pressing surface 67a1 and the outer rim 68 at the time of giving the preliminary folding angle is made larger than the distance between the second pressing surface 67b1 and the outer rim 68 by reducing the radius of curvature . As a result, the pre-folding angle with respect to the inner flap 22a can be made small, and the creasing of the band-like region 24 can be weakened.

Therefore, as shown in Fig. 22, it is possible to make the inner flap 22a in the upright posture from the inside of the outer box 14 at the time of molding the outer box 14. In this manner, in the preliminary folding step of the blank 10, by performing control to make the folding shape different between the inner flap 22a and the outer flap 22b, as in the case of the first embodiment, The productivity and quality of the outer box 14 and hence the hinge lead package 1 can be easily improved and improved.

The present invention is not limited to the second embodiment, and various modifications are possible.

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 and the second folding rollers 67a and 67b, The transfer surface 40 of the preliminary folding guide 60 is formed so that the outer rim 68a is narrower in width than the second outer rim 68b pressing the second folding roller 67b in the outer rim 68 .

In this case also, the distance between the first pressing surface 67a1 and the outer frame 68 at the time of applying the preliminary folding angle is larger than the distance between the second pressing surface 67b1 and the outer frame 68. [ This reduces the pre-folding angle of the inner flap 22a and further reduces the creasing of the belt-like region 24, so that the inner flap 22a is folded in the outer box 14 in the upright posture.

It is also possible to control the operation of the lifting device 66 so that the winding angle? Of the first and second folding rollers 67a and 67b with respect to the outer rim 68 is different from each other, It is possible to control the folding shape to be different by the outer flap 22b. Specifically, by making the angle? Of the first folding roller 67a smaller than the angle? Of the second folding roller 67b, the angle of the preliminary folding of the inner flap 22a is reduced, and further, It is possible to make the inner flap 22a in the upright posture from the inside of the outer box 14 at the time of molding the outer box 14. [

In the preliminary folding station 108 shown in Fig. 24, two folding block rows 108A and 108B are provided instead of two folding roller rows 67a and 67b. Each of the folding block rows 108A and 108B includes a first folding block (first folding member, folding block) 110a and three second folding blocks (second folding member, folding block) 110b ).

Each of the folding blocks 110a and 110b is connected to a slide mechanism (not shown). The first folding block 110a imparts a preliminary folding angle to the inner flap 22a by folding the inner flap 22a while the second folding block 110b folds the outer flap 22b, The preliminary folding angle is given to the flap 22b.

The first and second folding blocks 110a and 110b are provided on the concave surface facing the outer edge 68 of the preliminary folding guide 60 and on the outer edge 68 through the band- And second pressing surfaces 110a1 and 110b1 are formed. The first pressing surface 110a1 has a radius of curvature larger than that of the second pressing surface 110b1. This reduces the pre-folding angle of the inner flap 22a and further reduces the creasing of the belt-like region 24, so that the inner flap 22a is folded in the outer box 14 in the upright posture.

Further, by controlling the operation of the slide mechanism, the distance that the first folding block 110a slides toward the outer frame 68 is set to a distance that the second folding block 110b slides toward the outer frame 68 The distance between the first pressing surface 110a1 and the outer frame 68 at the time of applying the preliminary folding angle becomes larger than the distance between the second pressing surface 110b1 and the outer frame 68. [ This reduces the pre-folding angle of the inner flap 22a and further reduces the creasing of the belt-like region 24, so that the inner flap 22a is folded in the outer box 14 in the upright posture.

Finally, the present invention can be solely established not only by the combination of the first and second embodiments, but also by the configuration of the second embodiment. That is to say, without forming the cut-out 58 in the band-shaped area 24 of the blank 10 by the cutting roller 42, only the strength of the creasing to the blank 10 in the above- It is of course possible to suppress the quality gap of the blank 10 and improve the productivity and quality of the outer box 14 and further the hinge lead package 1.

1 hinge lead package (package)
4 Blank Magazine (supplier)
8 Feeder
10 blank
12 fold turret (wrapping machine)
14 outer box
16 corners
If 18
22 flap section
22a inner flap
22b outer flap
24 band zone
26 Traversing path
30 Feed rollers (one pair of rollers)
38 Prefolding station
40 Feed surface
42 Cutting roller (one side of roller)
42c outer peripheral surface
44 Receiving rollers (the other of the rollers)
44c outer circumferential surface
46 pressing area
48 blade
48a The tip along the circumferential direction of the outer circumferential surface
48b is inclined with respect to the circumferential direction of the outer circumferential surface
48c, the first tip inclined with respect to the circumferential direction of the outer peripheral surface
48d < / RTI >
52 pressing area
56 Gap adjustment device
Revision 58
60 Prefolding Guide
64A, 64B Folding roller column (folding element)
67a first folding roller (first folding member, folding roller)
67a1 first pressing face
67b Second folding roller (second folding member, folding roller)
67b1 second pressing face
68 Outer border
70 convex curved surface
72 concave curved surface
78 orbit
84 concave portion
90 fold line
94 folding line
96 fold lines
108A, 108B Folding block column (folding element)
110a first folding block (first folding member, folding block)
110a1 first pressing face
110b second folding block (second folding member, folding block)

Claims (29)

A feeding device for feeding a blank of a paper sheet forming an outer box of a package toward a packaging machine,
The feeding device includes:
A conveyance path extending from the supply source of the blank to the packaging machine and conveying the blank one by one along the conveyance surface,
A pair of rollers disposed on the outer circumferential surface of the outer box so as to be rotatable by the drive shaft with the conveying surface therebetween, each of the pair of rollers having a pressing area for pressing out the band-shaped area of the blank corresponding to the edge of the outer box, Wow,
A gap adjusting device for adjusting the gap between the pair of rollers by 20% to 50% of the thickness of the blank by lifting and lowering the (each)
And,
Wherein one of the pair of rollers has a plurality of blades in a V-shaped shape with an acute tip at its tip in the pressing region, and when the blank passes between the pair of rollers, Wherein a plurality of cut-outs for reducing the bending strength of the band-shaped region is formed in the band-
And the rotational position of one or both of the pair of rollers in the circumferential direction can be controlled. The method according to claim 1,
The blade is partially provided in a circumferential direction of the pressing region so that intermittent folding can be formed in the belt-shaped region by controlling the rotational position in the circumferential direction of one or the other of the pair of rollers , The supply of the blank. The method according to claim 1,
Wherein a concave portion is partially provided in the circumferential direction of the pressing region on the other side of the pair of rollers to control the rotational position in one or the other circumferential direction of the pair of rollers, Wherein the feeder is capable of forming intermittent cut-outs in the blank. The method according to claim 1,
Wherein the pair of rollers forms the cut-away portion on the back surface of the band-shaped region of the blank which becomes the inner surface of the outer box. The method according to claim 1,
And one of the pair of rollers is disposed on the upper side with respect to the conveying surface. The method according to claim 1,
Wherein the blade is formed with a tip along the circumferential direction of the outer circumferential surface in the pressing area. The method according to claim 1,
Wherein the blade has a tip end inclined with respect to a circumferential direction of the outer circumferential surface in the pressing region. The method according to claim 1,
Wherein the blade has a first tip inclined with respect to a circumferential direction of the outer circumferential surface in the pressing region and a second tip intersecting the first tip thereof. The method according to claim 1,
Wherein the blade has a tip length that is partially different in the circumferential direction of the pressing area. The method according to claim 1,
Wherein the longitudinal axis of the blank follows the feed path. The method according to claim 1,
Wherein the belt-like region of the blank is preliminarily folded when the blank is placed at the preliminary folding position defined in the downstream of the pair of rollers, and the preliminary folding angle And a preliminary folding station for feeding the blank. A feeding device for feeding a blank forming an outer box of a package toward a packaging machine,
The feeding device includes:
A conveyance path extending from the supply source of the blank to the packaging machine and conveying the blank one by one along the conveyance surface,
A pair of rollers arranged to be rotatable with the conveying surface therebetween and to emit the blank,
Wherein the blank is arranged at a preliminary folding position defined downstream of the pair of rollers, and when the blank is positioned at the preliminary folding position, the banding region of the blank corresponding to the edge of the outer box is preliminarily folded, A preliminary folding station for imparting a preliminary folding angle to the band-
And,
The prefolding station comprises:
A blank disposed on the conveying path and having an outer rim extending along the conveying path, wherein when the blank is positioned in the preliminary folding position, the blank is polymerized while a flap section A preliminary folding guide protruding from the outer edge,
A folding element disposed in the vicinity of the outer rim of the preliminary folding guide and having an axis extending along the outer rim,
Lt; / RTI >
Wherein the folding element defines the pre-fold angle of the flap section relative to the blank by folding the flap section while pressing the banded region along the outer rim,
Wherein the flap section includes an inner flap located inside the outer box at the time of molding the outer box and an outer flap located at the outer side of the outer box at the time of molding the outer box,
Wherein the folding element includes a first folding member for folding the inner flap and a second folding member for folding the outer flap,
Wherein the first and second folding members impart different pre-fold angles to the inner and outer flaps. The method of claim 12,
The prefolding station comprises:
A blank disposed on the conveying path and having an outer edge extending along the conveying path, wherein when the blank is positioned in the preliminary folding position, the blank is polymerized while the flap having the band- A section projecting from the outer rim, a prefolding guide,
A folding element disposed in the vicinity of the outer rim of the preliminary folding guide and having an axis extending along the outer rim,
Lt; / RTI >
Wherein the folding element defines the pre-fold angle of the flap section with respect to the blank by folding the flap section while pressing the banded region along the outer rim. 14. The method of claim 13,
Wherein said band of said blank forms a rounded rim at said edge,
Wherein the outer rim has a radius of curvature that is less than a radius of curvature of the rounded rim. 15. The method of claim 14,
Wherein the prefolding guide has a convex curved surface portion which is convex toward the side opposite to the folding direction of the flap section,
Wherein the blank is superimposed at the convex curved surface portion in the preliminary folding position. 16. The method of claim 15,
Wherein the preliminary folding guide further has concave curved surface portions which are connected to both ends of the convex curved surface portion by smooth arcs and which are concave in the folding direction of the flap section and whose concave curved surface portions are connected to the outer edge by smooth arcs,
Wherein the blank is superposed on the convex curved surface portion and the concave curved surface portion in the preliminary folding position. The method of claim 12,
Wherein the first and second folding members each have first and second pressing surfaces for applying the preliminary folding angle to the band-shaped region while pressing the band-shaped region along the outer rim,
Wherein the distance between the first pressing surface and the outer rim at the time of applying the preliminary folding angle is larger than the distance between the second pressing surface and the outer rim. 18. The method of claim 16,
Wherein the outer rim is disposed on both sides of the preliminary folding guide to define a width of the conveying surface,
Wherein the width of the transfer surface formed by the first outer frame pressing the first folding member in the outer frame is larger than the width of the transfer surface formed by the second outer frame pressing the second folding member Wherein the feed surface is formed so as to be narrower than the feed surface. 18. The method of claim 16,
Wherein the first and second folding members are folding rollers that move along an orbit surrounding the outer edge of the outer rim and fold the inner and outer flaps while pressing the banded region along the outer rim. Device. 18. The method of claim 16,
Wherein the first and second folding members are folding blocks that move in a direction matching the outer rim and fold the inner and outer flaps while pressing the band-shaped region against the outer rim. The method according to claim 1,
Wherein the package is a hinged package. A feeding method for forming an outer box of a package having a rounded edge and feeding a blank having a thickness of 0.25 mm to 0.35 mm as a paper material toward the packaging machine,
The feeding method includes:
Wherein the blank is fed from the supply of the blank to the wrapping machine one by one along the conveying surface, while pressing the band-shaped region of the blank corresponding to the edge of the outer box, And a cutting step of forming a plurality of cutouts for reducing the bending strength of the shape area,
In the cutting step, the cut-out in the band-like region can be adjusted to an acute-angled valley shape having a depth ranging from 50% to 80% of the thickness of the blank, Is capable of forming intermittently. 23. The method of claim 22,
The feeding method includes:
Further comprising a preliminary folding step of preliminarily folding the band-shaped region of the blank when the blank is positioned at a preliminary folding position defined downstream of the cutting process, thereby imparting a preliminary folding angle to the band-shaped region , The method of feeding the blank. A feeding method for feeding a blank forming an outer box of a package toward a packaging machine,
The feeding method includes:
The blank is fed from the supply source of the blank one by one to the packaging machine along the conveying surface, and when the blank is located at the preliminary folding position, the band region of the blank is preliminarily folded, And a preliminary folding step of imparting an angle,
In the preliminary folding step, when the blank is positioned at the preliminary folding position, the blank is polymerized while a flap section having a band-shaped region of the blank is protruded from the outer edge of the preliminary folding guide, By folding the flap section while pressing the band-shaped region along the outer edge by a folding element disposed in the vicinity of the outer edge of the guide,
Wherein the flap section includes an inner flap located inside the outer box at the time of molding the outer box and an outer flap located at the outer side of the outer box at the time of molding the outer box,
Wherein the folding element includes a first folding member for folding the inner flap and a second folding member for folding the outer flap,
In the preliminary folding process, the first and second folding members impart different preliminary folding angles to the inner and outer flaps. 24. The method of claim 23,
In the preliminary folding step, when the blank is positioned at the preliminary folding position, the blank is superimposed on the preliminary folding guide, while the flap section having the banded region of the blank is pulled from the outer edge of the preliminary folding guide Wherein the flap section is folded while being pressed along the outer rim by a folding element disposed in the vicinity of the outer rim of the preliminary folding guide. 26. The method of claim 25,
Wherein the flap section includes an inner flap located inside the outer box at the time of molding the outer box and an outer flap located at the outer side of the outer box at the time of molding the outer box,
Wherein the folding element includes a first folding member for folding the inner flap and a second folding member for folding the outer flap,
In the preliminary folding process, the first and second folding members impart different preliminary folding angles to the inner and outer flaps. delete delete delete

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