JPH0446803B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <<Industrial Application Field>> This invention relates to a method for manufacturing an assembly box with an inner carton.

≪Prior Art≫ There are various kinds of assembled containers, but one of them is generally an assembled box with an inner carton, in which inner carton blanks are attached to the inner surface of the packaging box, due to requirements such as display effect and usability. It is used.

That is, in this assembly box, as shown in FIG. 5a, first, a cutting line 2 is horizontally formed in the upper part of one side surface 1a which is the front side of the outer carton blank 1, which is an outer box. Cutting lines 2 that gradually rise toward the rear are formed on both side surfaces 1b that are continuous and adjacent to both end portions. Then, when the cutting line 2 is cut out and the outer carton blank 1 is opened, as shown in FIG. The upper part of the generally U-shaped inner carton blank 3 consisting of integrally formed side sides 3b-3b protrudes, and the packaged object 4 inside is exposed.

By using such an assembly box with an inner carton, even after it has been opened, the upper open part of the outer carton blank 1 can be closed by engaging with the inner carton blank 3, so when reusing it, the box can be closed. It is convenient and has the advantage of improving display effects, and is used for packaging cigarettes, confectionery, and various other products.

Conventionally, in order to manufacture the above-mentioned assembly box with an inner carton, the unfolded inner carton blank was glued to the corresponding part of the inner circumferential surface of the unfolded outer carton blank, which was previously punched into a predetermined shape. The pre-assembled box is assembled into a sleeve shape to pre-form an assembled box, the pre-formed assembled box is folded again into a flat state and fed to a packaging machine, and then the folded assembled boxes are assembled into another packaging machine. However, after taking out the package one by one and opening the folded assembly box and inserting the item to be packaged (by folding the lids on both sides into the assembly box), the opening was closed and the box was manufactured.

<<Problems to be Solved by the Invention>> However, according to the conventional box manufacturing method, an inner carton blank is assembled into an outer carton blank by adhering it to form a sleeve-like box, which is then further flattened. For example, one side of the outer carton blank 1 in FIG. When only the inner circumferential surface of 1a and the center side 3a of the inner carton blank 3 are bonded, the side parts 3b-3b of the inner carton blank 3 on both sides become free, and both side parts 1b of the outer carton blank 3 are bonded together.
There is a problem in that the package does not open at the same time as the inner surface of the package and bends slightly inward, which obstructs insertion of the packaged item.

In addition, in order to solve the above problem, a method of gluing all the contact surfaces of the outer carton blank 1 and the inner carton blank 3 can be considered, but in such a case, the number of bonding points increases and the box manufacturing work becomes complicated. At the same time, new problems such as increased costs arise. Furthermore, in any case,
Two types of machines are required: a means for assembling the unfolded outer carton blanks and inner carton blanks to form a box, and a means for expanding the assembled box and inserting and closing the packaged items 4. In order to insert the packaged items into the box, it is necessary to leave space between the box and the packaged items, so the box dimensions must be made large, and furthermore, once the assembled box is assembled, Since it has to be stocked, there is a problem in that a relatively large space is required.

This invention was made in view of the above-mentioned problems, and its purpose is to make it easier to manufacture boxes using a simple method, and to reduce the extra space between the packaged items and the box. without taking
Moreover, it is an object of the present invention to provide a method for manufacturing an assembly box with an inner carton, which can reduce costs.

<<Means for Solving the Problems>> In order to achieve the above object, in the method for manufacturing an assembly box with an inner carton according to the present invention, the paper outer box and the inner carton are formed into predetermined shapes in advance. Prepare an outer carton blank and an inner carton blank in an expanded state that have been drawn and formed, apply an adhesive to at least one of these carton blanks, and connect the outer carton blank, the inner carton blank, and the packaged item. are separately conveyed, and the packaged object is transported at a predetermined position value,
The inner carton blanks and the outer carton blanks are assembled in this order, and then moved forward and inserted into a formwork with a center opening placed on the side of the outer carton blanks. The outer carton blanks and the inner carton blanks are folded along their circumferential surfaces, and after passing through the formwork, are closed by a closing means disposed close to the formwork. By closing the opening of the outer carton blank on the side of the mold, the object to be packaged can be packaged inside the outer carton blank and the inner carton blank at the same time.

<<Operation>> Outer carton blanks and inner carton blanks of a predetermined shape are separately punched and formed, and usually each is stored separately in a plurality of stacks. Then, both carton blanks are taken out one by one and transported to a predetermined position, where they are stacked. Incidentally, an adhesive is applied to at least one of the carton blanks during the movement or in advance. Therefore,
When the two carton blanks are stacked together, they are bonded and integrated. However, when bonding,
Since both carton brackets are still in the unfolded state, they have not been folded in any way.

In addition, the packaged items are also transported in a separate system from the transportation of the carton blanks, and are overlapped with both carton blanks at the predetermined position.

In this state, the outer carton box is bent at an appropriate position to form an assembled box, and the article to be packaged is enclosed therein. At this time, the inner carton blank is also folded at the same time by the above folding. Therefore, the bending angle of the inner carton blank is approximately equal to that of the outer carton blank, and the inner carton blank is not bent more than necessary.

<<Example>> Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Note that parts that are the same as those in the prior art will be described with the same reference numerals.

Figures 1a and 1b show an apparatus suitable for carrying out the method of the invention.

As shown in FIG. 1, there is a holder 5 that stores a large number of unfolded outer carton blanks 1 stacked vertically and supplies them one by one, and a holder 5 that stores the outer carton blanks 1 in a stacked state in the unfolded state one by one. A first conveyance path 6 for conveying;
A second conveyance path 7 for conveying the object to be packaged 4 is disposed at opposite positions on the same straight line. The tip of the first conveyance path 6 is located at a slightly higher position than the tip of the second conveyance path 7, and the outer material is placed above the packaged object 4 at a position where the ends of both conveyance paths 6 and 7 face each other. A carton blank 1 is placed thereon.

Also, perpendicular to the first and second conveyance paths 6 and 7,
A holder 8 that stores a large number of unfolded inner carton blanks 3 stacked vertically and supplies them one by one, and a third conveyance path 9 that conveys the inner carton blanks 3 disposed in connection with the holder 8. It is located. And the third
The tip of the conveyance path 9 is connected to the first and second conveyance paths 6 and 7.
The height of the third conveyance path 9 at the position opposite to the tip is higher than that of the second conveyance path 7, but lower than that of the first conveyance path 6. , an inner carton blank 3 is interposed between the article to be packaged 4 and the outer carton blank 1.

A box making device 1 is located above the box making position A, which is a position facing the tip ends of these first to third conveyance paths 6, 7, and 9.
0 is provided, and a fourth conveyance path 12 is provided for discharging the assembled boxes 11 after being made into boxes from a position close to the top of this box making device 10. And this fourth
The conveyance path 12 is disposed above the same vertical plane as the first conveyance path 6, and the box containing the object to be packaged moves in the opposite direction.

Further, a gluing device 13 is disposed at an intermediate position of the first conveyance path 6, and is adapted to apply an adhesive such as hot melt to a predetermined position of the outer carton blank 1 being conveyed.

The second conveyance path 7 is an endless chain 5 disposed between a pair of sprockets 14-14.
The fingers 16 are arranged at predetermined intervals. And at the tip,
In order to ensure that the packaged items 4 pushed by the fingers 16 at predetermined intervals are conveyed to the box forming position A, positioning claws 17 that are slidable in the vertical and longitudinal directions of rotation are provided. A pair of rail-shaped receiving members 18-18 are arranged on the sides.

Furthermore, a gluing device (not shown) is disposed in the middle of the third conveyance path 9, and is adapted to apply adhesive to predetermined positions of the inner carton blanks 3.

Furthermore, at the box manufacturing position A, a pair of rail-shaped receiving plates 19-19 are connected to the receiving member 18-18 to prevent the packaged items 4 transported by the second transport path 7 from falling downward. is installed.

On the other hand, a push-up frame 20 is disposed below the box-making position A so as to be movable up and down. This push-up frame 2
0, as shown in an enlarged view in FIG. 2, includes a push-up bar 21, a bottom plate 22 having a planar substantially H-shape fixed to the upper end surface of the push-up bar 21, and a bottom plate 22 fixed to both sides of the bottom plate 22 in the front and back direction and extending upward. It is composed of protruding side walls 23-23. And this push-up rod 21
When the side wall 23 rises, the side wall 23 is exposed upward through the gap between the receiving member 18-18 and the receiving plate 19-19,
The article to be packaged 4 begins to be inserted between the side walls 23-23. When the push-up bar 21 further rises, the notches 22a on both sides of the bottom plate 22 and the receiving plate 19-1
9 are substantially aligned so that the bottom plate 22 and the receiving plate 19-19 are positioned on the same plane, and as a result, the bottom plate 22 is brought into contact with the object to be packaged 4 placed on the receiving plate 19-19. When the push-up bar 21 rises from this state, the bottom plate 22 pushes up the object 4 to be packaged. At the same time, although not shown, the inner carton blanks and outer carton blanks placed on the packaged object 4 also rise and are pushed up toward the box-forming device 10 disposed above.

Now, to explain the box making device 10, the second
As shown in the enlarged view, a pair of front and rear guides 26-26 and a pair of left and right guides 27-26 are provided on each of the four opposite sides of the formwork 25, which has a substantially rectangular shape in plan and has a center opening.
27 is fixed. Furthermore, both guides 26-
The outer carton blanks 1 26 and 27-27 have their upper parts fixed to the outer circumferential surface of the formwork 25, and their lower parts expanded outward. In addition, the inner carton blanks 3 are smoothly inserted into the formwork 25.
It is designed to be inserted into the central space of and folded. Furthermore, the left and right guide 27-2
A concave notch 28 having a width wider than the width of the facing surface of the outer carton blank 1, that is, the lid portion 1c-1c, is bored in the lower part of the outer carton blank 1, and the inner surface of the left and right guides 27-27. A pair of bending guides 30-30 are formed to protrude inward on both sides of the lower side, and are adapted to bend the four corner ears 1d of the outer carton blank 1 in the unfolded state.

Furthermore, a closing means 31 is disposed above and close to the box making device 10. This closing means 31 includes a first folding plate 32-32 disposed above the left and right guides 27-27, a second folding plate 33 and a third folding plate 34 disposed above the front and rear guides 26. The rear side in the direction of travel is the second
It is a folded plate 33. And each folding plate 3
2, 33, and 34 are each provided so as to be able to move forward and backward toward the center, and their operations are synchronized by cams or the like.

Next, a box manufacturing method according to the present invention will be described using the apparatus described in the above embodiment.

First, as shown in FIG. 3, the outer carton blank 1 is transported to a box-forming position A by a first transport path. At this time, the side surface 1e of the outer carton blank 1, which will be the back side when assembled, is located at the rear side in the direction of travel, and the side surface 1e is opened by the gluing device 13 during transportation.
Hot melt 36 is applied to the lower surface near the edges. Moreover, an inner carton blank 3 consisting of a central side 3a and side sides 3b arranged on both sides of the central side 3a.
is transported to the box manufacturing position A by the third transport path,
During transportation, hot melt 37 is applied to the upper surface of the central side 3a by a gluing device. Furthermore, the second
The objects 4 to be packaged are transported by the fingers of the transport path, and are further transported to the box-forming position A at predetermined intervals by positioning claws 17 that are rotatable and slidable in the vertical and longitudinal directions.

As shown in FIG. 4, at the box manufacturing position A, the items to be packaged 4, the inner carton blanks 3, and the outer carton blanks 1 are assembled in this order.

Next, as shown in FIG. 2, the push-up frame 20 rises, and the side wall 23 of the push-up frame 20 rises along the outer side of the object to be packaged 4 to protect the object to be packaged 4 and protect the object to be packaged. The object to be packaged 4 is lifted up by the bottom plate 22 that comes into contact with the object 4. At this time, the side wall 23-
The upper end of the inner carton blank 3 abuts on the boundary line between the center side 3a and the side sides 3b-3b of the inner carton blank 3, and raises the inner carton blank 3 and the outer carton blank 1 at the same time. Then, first, the front and rear guides 26-2 of the box making device 10
Both side surfaces 1b of the outer carton blank 1 come into contact with the lower edge of the outer carton blank 6 and are guided to start folding. At this time, the side portions 3b-3b of the inner carton blank 3 are also bent at the same time. Further, the four corner ears 1d abut on bending guides 30-30 provided on the left and right guide portions 27-27 and are bent inward. However, the lid part 1c-1c of the outer carton blank 1 is connected to the left and right guides 27-1.
Since it is inserted into the notch 28 of No. 7, bending is not started. That is, the four corner lug portions 1d always start to be bent before the lid portions 1c-1c.

Then, when the lid part 1c-1c rises further, the lid part 1c-1c comes into contact with the upper edge of the notch part 28 of the left and right guides 27-27 and begins to bend.
5 is inserted into the central space of FIG. 5, and is pushed upward to form a complete box shape as shown by the solid line in FIG. At this time, the lower surface of the outer carton blank 1 and the inner carton blank 3 is connected to the side wall 23-2 of the push-up frame 20.
3, the outer carton blanks 1 and the like will not be deformed due to the pressure caused by insertion into the formwork 25, and will not be crushed by the packaged items 4.

Then, when it passes through the central space of the formwork 25 and rises above the formwork 25, the lifting frame 20 stops rising, and then the first folding plates 32-32 move forward and the outer carton blanks 1 are moved upward. Lid part 1
The lug 1h formed at the end of c-1c is bent inward and positioned below the lug 1h to prevent the packaged object 4 from falling and the box-shaped box from falling. At this time, the push-up frame 20 is simultaneously lowered. Next, the second folding plate 33 moves forward and bends the ear portion 1i formed at the end of the side surface portion 1b of the outer carton blank 1 inward. Finally, the third folding plate 34 moves forward and bends the back side surface 1e to form the assembly box 11.

The assembly box manufactured in this manner is transported through the adjacent fourth transport path 12, and during the process, the hot melt applied in the first and third transport paths 6 and 9 is crimped and the box is manufactured. Complete. Also, the first
- The third folding plates 32 to 34 are moved back for the next assembly and closing operation when the assembly box is transferred to the fourth conveyance path 12.

In the above embodiment, the inner carton blank and the outer carton blank were bonded together while the box was being assembled, but the present invention is not limited to this. good. In addition, the inner carton blanks and the outer carton blanks may be supplied in the same line and transported to the box forming position, and there are no particular restrictions on the gathering method and transport method.

Furthermore, in the above embodiment, the central opening of the formwork 25 is approximately square; however, this approximately matches the shape of the outer carton blank inserted through the formwork, and can take on a variety of shapes. In addition, the formwork referred to in the present invention does not necessarily have to be formed as a continuous and integral piece, and may be divided, for example.

Furthermore, in the above embodiment, the box making device (form) is placed above the object to be packaged, etc., and the case is formed by raising the object to be packaged, but the present invention is not limited to this. Alternatively, for example, the order of gathering may be reversed, the box-forming device may be disposed below, and the boxes may be formed by moving the boxes downward in this assembled state.

<<Effects of the Invention>> As described above, according to the method for manufacturing an assembly box with an inner carton according to the present invention, the inner carton blank is bonded to the outer carton blank that has been punched and expanded into a predetermined shape in advance, and then the sleeve-shaped The pre-assembled box is assembled to pre-form an assembly box, and the pre-formed assembly box is further folded into a flat state and stored, or supplied to a sack machine, and the assembly box formed into the flat state is expanded. , without the need to insert the packaged item and close the openings on both sides, and without using separate machines.
Furthermore, the box dimensions are increased so that the items to be packaged can be easily inserted into the assembled box, but the items to be packaged are enclosed at the same time as the inner carton blanks and outer carton blanks are being formed. By being able to do this, it is possible to save resources without increasing the size of the box, and to bond the inner and outer carton blanks, it is only necessary to apply adhesive to the center, which reduces costs and simplifies work. It has unique effects such as greatly improving work efficiency.

[Brief explanation of the drawing]

FIG. 1a is a side view showing an embodiment of a box manufacturing apparatus for carrying out the method for manufacturing an assembled box with an inner carton according to the present invention, FIG. 1b is a plan view thereof, and FIG.
The figure is an enlarged perspective view of the main part, FIGS. 3 and 4 are views for explaining the operation of the box manufacturing method, and FIGS. 5a and 5b are perspective views showing an assembled box with an inner carton. 1... Outer carton blanks, 3... Inner carton blanks, 4... Items to be packaged, 6
...First transport path, 7...Second transport path, 9...
3rd conveyance path, 10... Box making device, 11... Assembly box, 12... Fourth conveyance path, 13... Gluing device, 20... Push-up frame, 25... Formwork.

Claims (1)

[Scope of Claims] 1. An assembly with a paper inner carton, which is bonded to the inner surface of a paper outer box integrally formed with an openable/closable lid and has an inner carton that can be engaged with the lid. In the box manufacturing method, an outer carton blank and an inner carton blank are prepared in an unfolded state and are punched into a predetermined shape and formed in advance to constitute the outer box and the inner carton, and at least one of the cartons is manufactured. While applying adhesive to the blanks, the outer carton blanks, the inner carton blanks, and the items to be packaged are each conveyed separately, and the items to be packaged, the inner carton blanks, and the outer carton blanks are placed at a predetermined position in this order. Then, the outer carton blanks and the inner carton blanks are assembled so that the outer carton blanks and the inner The side portions of the outer carton blanks in the traveling direction are folded and formed, and after passing through the formwork, the openings of the outer carton blanks on the side of the formwork are closed using a closing means disposed close to the formwork. A method for manufacturing an assembly box with an inner carton, characterized in that the object to be packaged is simultaneously enclosed and packaged in the outer carton blank and the inner carton blank by closing them.