JP3016517B2 - Sheet-shaped package forming device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a sheet-shaped package forming apparatus for forming a package externally fitted to an object to be fitted by bending a sheet material.

(Prior Art) For example, as shown in FIG. 13, a decorated package 101 is sold in a container (fitted body) 100 in which a confectionery or the like is stored in a state where the package 101 is externally fitted. In some cases. The fact is that the package 101 is folded by a worker in such a manner that a sheet material made of paper or the like is folded in a shape along the container, and is folded along the folded shape.

(Problems to be Solved by the Invention) However, in the above-described conventional packaging body 101 forming operation, it is necessary to fold and form the sheet material so that the side wall portions 102 of the packaging body 101 overlap with each other. The work is complicated and troublesome, and has a drawback of poor work efficiency.

Also, since the work is done artificially,
In addition to the increase in cost, the folded state of the package 101 is often irregular, and the appearance of the package 101 may deteriorate.

The present invention has been made in view of the above problems, and provides a sheet-like package forming apparatus capable of automatically and uniformly forming a package into a folded state, improving work efficiency, and reducing cost. As an issue.

(Means for Solving the Problems) The present invention has been made as an apparatus for forming a sheet-like package in order to solve the above-mentioned problems. An apparatus for forming a package body (8) to be externally fitted to a body to be fitted (10) by bending a sheet material (6), wherein the convex shape is a folding part for forming a folded part (6c) on the sheet material (6). The forming convex 17 and the folding forming convex 17 are composed of a fold forming convex 16 in which the fold forming convex 17 is slidably fitted to the outside, and the convex dies 16 and 17 are provided radially and rotatably, The concave mold has a folding forming concave mold 26 into which the folding forming convex mold 17 is fitted, and a folding part 6c.
In order to fold the formed sheet material 6 along the foldable portion 6c, a fold-forming concave mold 27 into which the fold-forming convex mold 16 protrudes by retreating the fold-forming convex mold 17 is fitted. The fold forming concave mold 26 and the fold forming concave mold 27 are arranged at intervals along the rotation direction of the convex dies 16 and 17, and the inner peripheral surface of the fold forming concave mold 27 includes A plurality of grooves 33 into which the folded portion 6c of the sheet material 6 enters when the convex 16 is fitted are formed in a circumferential direction so as to form overlapping portions overlapping in the same circumferential direction on the peripheral wall 53 of the body 8. Is to become.

Further, the folding mold concave mold 27 is a preforming concave mold, and a finishing concave mold 28 into which the fold forming convex mold 16 is fitted in a state where the package 8 preformed by the preforming concave mold is interposed. Is provided.

(Operation) In the apparatus as described above, the sheet material 6 is interposed between the fold forming convex mold 17 and the concave mold 26, and the convex mold 17 and the concave mold 26 are interposed.
By closing the mold 26, the sheet material 6
6c is formed. Next, the sheet material 6 on which the folded portion 6c is formed by the convex forming mold 17 and the concave mold 26 is interposed between the folding forming convex mold 16 and the concave mold 27, and these convex molds are formed.
When the mold 16 and the concave mold 27 are closed, the convex mold 16 for forming the fold is formed.
When the is inserted into the concave mold 27, the folded portion 6c of the sheet material 6
Is inserted into the groove 33 of the concave mold 27 to form the package 8, and the overlapping portion is formed on the peripheral wall 53 thereof.

Also, the convex forming die 17 and the folding forming convex 16 are formed.
Are provided integrally and radially, and a concave form 26 for forming a fold, a concave form 27 for forming a fold, and a concave form 28 for finishing
However, when provided along the rotation direction of the convex molds 16 and 17, the forming operation in each mold can be performed continuously and continuously, and automation can be easily realized.

(Example) Hereinafter, an example of the present invention will be described.

1 and 2, reference numeral 1 denotes a package mounting apparatus, and the apparatus 1 is a sheet material 6 which is set on a top of a machine base 2 via a holding body 5 in a state of being superposed in the front-rear direction.
A package forming section 9 which bends the sheet material 6 taken out of the holding body 5 to form a package 8 which can be externally fitted to a container (fitted body) 10 containing confectionery or the like; And a mounting portion 12 for externally mounting the package 8 formed by the package forming portion 9 on a container 10.

The sheet material 6 has a circular shape as shown in FIG. 10, and is formed by laminating an aluminum material on the surface of a paper material as a base material.

11 is the sheet material 6 held by the holding body 5,
This is a supply member for taking out one sheet material 6 from the holding member 5 and supplying the sheet material 6 to the package forming portion 9 side.

The package forming section 9 includes a hexagonally-shaped rotator 12 which is rotatably driven in a direction indicated by an arrow via driving means such as a motor 3 and can be stopped at a predetermined rotation position.
Sixteen are provided radially and at equal angles.

As shown in FIG. 4, each convex mold 13 includes a support rod 15 projecting radially outward from the rotating body 12 and a column-shaped fold-forming convex mold 16 fixed to a tip of the support rod 15. And a fold-forming convex 17 that is slidably fitted to the fold-forming convex 16.

The leading end side of each folding forming convex 17 is shown in FIGS.
As shown in the figure, the surface is provided in a truncated cone shape, and a saw-toothed uneven surface 18 is formed on the tip end surface.

Reference numeral 18a denotes a suction hole formed in the fold forming projection 17 so as to adsorb the sheet material 6.

Reference numeral 19 denotes a pair of guide rods, one end of which is connected to the fold-forming projection 17 and the other end of which is connected to a bracket 20 which is slidably fitted on the support rod 15. Reference numeral 21 denotes a cylindrical support for slidably holding the guide rod 19, which is fixed to an intermediate portion of the support rod 15 and which is connected to the support 21 via a bush 22. 19 is inserted.

Reference numeral 23 denotes a cam roller provided on the bracket 20. The cam roller 23 comes into contact with a cam (not shown), and is positioned at a position where the end faces of the fold forming convex mold 17 and the fold forming convex mold 16 are flush with each other. This is for moving the fold forming convex mold 17, the bracket 20, and the like to a position where the fold forming convex mold 17 retreats and the fold forming convex mold 16 projects.

Reference numeral 25 denotes a concave shape, which is composed of a concave shape 26 for folding formation, a concave shape 27 for preliminary formation (concave shape for folding formation) 27 and a concave shape 28 for finishing, and these concave shapes 26, 27, 28 Are arranged at equal angular intervals along the centripetal direction so as to face the convex 13. The fold forming concave mold 26 is circumferentially engaged with the mold body 26a slidably provided on the slide base 24 fixed to the machine base 2 and the uneven surface 18 of the fold forming convex mold 17. And a plurality of projecting bodies 16b projecting at intervals in the direction.

Further, the preformed concave mold 27 and the finishing concave mold 28 also have mold main bodies 27a and 28a slidably provided on the slide table 24 similarly to the main body 26 of the folding forming concave mold 26, respectively.
Each of the mold bodies 27a and 28a has
Concave portions 32a and 32b into which 6 are fitted are formed respectively.
As shown in FIGS. 5 and 6, when the fold-forming convex mold 16 is inserted into the inner peripheral surface of the concave portion 32a of the preformed concave mold 27, the same circumferential direction as the peripheral wall 53 of the package 8 is applied. A plurality of grooves 33 for the folded portion 6c of the sheet material 6 to be inserted into are formed in the circumferential direction so as to be able to form an overlapped portion.

The diameter of the concave portion 32a of the preforming concave mold 27 is provided to be larger than the diameter of the concave portion 32b of the finishing concave mold 28,
The clearance between the preformed concave mold 27 and the fold forming convex mold 16 is set large.

Reference numeral 35 denotes a link mechanism for simultaneously moving the concave dies 26, 27, and 28, and is linked to the concave dies.

Reference numeral 37 denotes a transfer device for extracting the package 8 formed from the sheet material 6 in the forming section 9 from the convex mold 13 and transferring the package 8 to the mounting section 12, and a swing arm 38 whose upper end is pivotally supported and which can expand and contract. And an adsorbing section 39 provided at the tip of the arm 38.

Reference numeral 42 denotes a positioning device for positioning the containers 10 sequentially conveyed by the conveyor mechanism 43 at a predetermined position below the transfer device 37, as shown in FIGS. It has a curved guide body 48 for guiding the outside of the container 10 to be supplied, and a container mounting table 47 provided so as to be able to move up and down in an opening 46 formed below the transfer device 37.

The opening 46 is provided slightly larger than the diameter of the lower part of the container 10, and the lower part of the container 10 is fitted into the opening 46 when the container mounting table 47 is lowered. The distance between the star-shaped rotating body and the guide body 48 is larger than the diameter of the container 10, and the container 10 is placed on the mounting table.
When the positioning is performed by the raising / lowering operation of the 47, a space is provided between the container 10 and the star-shaped rotator 45 and the guide 48.

50 is an inclined surface formed on the outer peripheral surface of the star-shaped rotating body 45, and 51 is an inclined surface formed on the inner peripheral surface of the guide body 48.
50 and 51 guide the package 8 in the direction of reducing the diameter of the lower end of the package 8 when the package 8 is fitted on the container 10.

The mounting part 12 is a peripheral wall of the package 6a fitted externally to the container 10.
The packaging body 8 is mounted by winding a tape 54 around 53.

Next, a case where the package 8 is externally fitted to the container 10 using the above-described apparatus will be described.

First, the sheet material 6 previously set on the holding body 5 is sucked by the supply body 11 and supplied to the upper surface of the convex mold 13 positioned upward, and the folding mold convex mold 16 sucks the sheet material 6. I do.

Next, the rotating body 12 is driven to rotate, and the protruding mold 13 that has attracted the sheet material 6 stops at a position facing the fold forming concave mold 26 (see FIG. 3A).

When the rotating body 12 stops, the folding forming concave mold 26 is moved in the direction of the rotation center of the rotating body 12 via the link mechanism 35,
The protrusion 26b is pressed into contact with the uneven surface 18 of the fold forming convex 17 via the sheet material 6 (see FIG. 3B). As a result, the sheet material 6 is bent along the concave-convex surface 18 of the fold forming convex 17 to form the fold portion 6c.
(See Figure C).

After the folded portion 6c is formed in the sheet material 6, the folded forming concave mold 26 retreats to the original position, and the rotation of the rotating body 12 causes the convex 13 to face the preliminary forming concave mold 27 again. Rotated until stopped. In this rotation, the convex type
The 13 convex forming dies 17 are retracted and the convex forming dies are formed.
16 will be in a protruding state.

Immediately after the stop of the convex 13, the preliminary forming concave 27 is moved via the link mechanism 35, and the fold forming convex 16 is inserted into the concave 32 a (see FIG. 4). The folded portion 6c formed on the sheet material 6 enters the groove 33 with the insertion of the fold-forming convex 16 and forms an overlapped portion so as to be overlapped (see FIG. 5). In addition, since the clearance at the time of fitting the concave portion 32a of the preliminary forming concave mold 27 and the folding forming convex mold 16 is large, the sheet material 6 can be smoothly moved along the folded portion 6c without damaging the sheet material 6. Can be bent.

Next, the preformed concave mold 27 is retracted (see FIG. 7), and the convex mold 13 is further rotated to a position facing the finishing concave mold 28 and stopped. Immediately after the stop of the convex 13, the finishing concave 28 is moved, and the recess 32 b is fitted to the fold forming convex 16 of the convex 13. At this time, the fitting clearance between the concave portion 32b and the fold forming convex mold 16 is equal to that of the preformed concave mold 27.
Therefore, the formation of the package 8 is further ensured (see FIG. 8).

Next, the convex mold 13 is further rotated after the finishing concave mold 28 is retracted, and stopped near the transfer device 37. Immediately after the protrusion 13 stops, the swing arm 38 of the transfer device 37 extends,
39 sucks the package 8. The arm 38 contracts and swings vertically in the state in which the suction portion 39 sucks the package 8 (the
(See Fig. 11 a.)

On the other hand, the container 10 is transported below the transfer device 37 via the conveyor device 43 and the star-shaped rotator 45 and is placed on the placing table 47. When the mounting table 47 on which the container 43 is mounted is lowered,
The lower part of the container 10 fits into the opening 46, and is separated from the star-shaped rotating body 45 and the guide body 48, and the mounting table 47 rises again to the original height.

Further, when the swing arm 38 of the transfer device 37 is extended, the package 8 is fitted over the positioned container 10 from above, but at this time, the lower end side of the peripheral wall 53 of the package 8 is slightly enlarged. However, the inclined surfaces 50 and 51 of the star-shaped rotator 45 and the guide member 48 guide the peripheral wall 53 of the package 8 in the direction of reducing the diameter, and the star-shaped rotator 45 and the guide member 48 become an obstacle. Without this, the package 8 is securely fitted to the container 10.

Further, the container 10 with the package 8 fitted thereon is conveyed to the mounting section 12 by the star-shaped rotating body 45, and the tape 54 is wound around the peripheral wall 53 of the package 8 at the mounting section 12, and FIG. Container 10 as shown
The package 8 is attached to the package.

In each of the above work steps, the rotation angle of the rotating body 12 is determined,
It is performed simultaneously in each of the convex mold 13 and the concave mold 25, so that the work efficiency is good and it is optimal for mass production.

The sheet material 6 is formed with a perforation 56 as shown in FIG.
It is also possible to form a notch 57 for positioning on the outer peripheral portion of the sheet material 6 so that the sheet material 6 can be folded along 56, and set the sheet material 6 on the holder 5 based on the notch 57 for positioning. It is possible.

Further, the shape such as the width and the depth of the groove 33 of the preform concave mold 27 can be freely changed in design depending on the material and the folded shape of the sheet material 6, and for example, has a perforation 56 shown in FIG. In the case of a material or a sheet material of a material that can be easily folded, a wide and shallow groove can be used.

Further, in the above-described embodiment, the case where the single preforming concave mold 27 is provided is exemplified.However, the present invention is not limited to this, and a plurality of preforming concave molds having different clearances and groove widths from the convex mold 13 can be provided. is there.

Also, by forming the package 8 in the preforming concave mold, the finishing concave mold 28 can be omitted.

Further, the material of the sheet material 6 can be arbitrarily changed, and for example, a material made of only a paper material or a material made of a synthetic resin material can be adopted. Further, the shape of the sheet material 6 may be any shape such as a rectangular shape or a triangular shape other than the circular shape.

In addition, in the present invention, the specific configuration of each part can be freely changed in design, and for example, the shape of the container 2 is not limited to the above.

(Effect of the Invention) Since the present invention has the above-described configuration, the bending and folding work of the sheet material, which has been conventionally performed manually, can be automated. As a result, the work efficiency is improved as compared with the related art. It is most suitable for mass production, and its practical value is remarkable.

Also, since a groove is formed on the inner peripheral surface of the fold-forming concave mold so that a folded portion of the sheet material enters when the convex mold is fitted so as to form an overlapped portion overlapping the peripheral wall of the package in the same circumferential direction. There is an advantage that the folding direction of the peripheral wall of the package can be unified and the state thereof can be made uniform, so that the external fitting appearance can be improved.

Also, a plurality of fold-forming convexes and fold-forming convex dies are provided integrally and radially, and the fold-forming concave folds and the fold-forming concave dies are provided along the rotation direction of the convex. Therefore, the forming operation in each mold can be continuously performed in a series, and the automation thereof can be performed more effectively.

Further, when the concave mold for finishing is provided, the folding of the package can be performed more reliably.

[Brief description of the drawings]

FIG. 1 is a front view of an apparatus according to the present invention, and FIG. 2 is a schematic side view thereof. FIG. 3 shows a state in which a fold is formed on a sheet material using a convex form and a concave form for forming a fold, (a) is a view showing a state before the mold is closed, (b) is a view showing a state in which the mold is closed, ( (C) is a perspective view of the folded sheet material. FIG. 4 is a cross-sectional view showing a closed state of the convex and concave molds for forming a fold, FIG. 5 is a plan view of the same cross section, FIG. 6 is a plan view of the concave for forming a fold, and FIG. FIG. FIG. 8 is a sectional front view showing a closed state of a convex mold for forming a fold and a concave mold for finishing. FIG. 9 is a schematic plan view, and FIG. 10 is a front view of the sheet material. FIG. 11 shows a state in which the package is fitted to the container, (a) is a front view when positioning the container, (b) is a sectional view of a main part, and FIG. 12 is a state in which the package is mounted on the container. Perspective view. FIG. 13 is an overall perspective view showing a conventional example, and FIG. 14 is a perspective view showing a folded state of a sheet material. 6 ... sheet material, 6 c ... folded part, 8 ... package, 10
…… Container, 16… Protrusion for forming fold, 17… Protrusion for forming fold, 26… Recess for forming fold, 27 …… Recess for forming preform (recess for forming fold), 28 …… Finish For concave type, 33 ... groove, 53 ... peripheral wall.

Claims (2)

(57) [Claims] (1) The convex and concave molds are fitted to each other so that
An apparatus for forming a package body (8) to be externally fitted to a body to be fitted (10) by bending a sheet material (6), wherein the convex shape is a folding part for forming a folded part (6c) on the sheet material (6). A convex forming die 17 and a folding forming convex 16 into which the folding forming convex 17 is slidably fitted.
Are radially provided in a plurality and rotatably, the concave mold,
The concave forming die 26 into which the convex forming convex 17 is fitted
And the sheet material 6 on which the folding portion 6c is formed
In order to fold along the 6c, the fold forming convex mold 17 includes a fold forming concave mold 27 to which the fold forming convex mold 16 protrudes by retreating, and the fold forming concave mold 26 and the fold The forming concave mold 27 is the convex mold 16, 17
Are arranged at intervals along the rotation direction of the package, and the inner peripheral surface of the concave forming mold 27 is provided with a peripheral wall of the package 8.
In order to form an overlapping part overlapping the same circumferential direction in 53,
An apparatus for forming a sheet-like package, wherein a plurality of grooves 33 into which the folded portion 6c of the sheet material 6 enters when the convex 16 is fitted are formed in a circumferential direction. 2. The preform forming concave mold 27 is used as the folding forming concave mold 27, and the package 8 preformed by the preforming concave mold is used.
2. The apparatus for forming a sheet-like package according to claim 1, further comprising a finishing concave mold 28 into which the fold forming convex mold 16 is fitted in a state where the folding mold is interposed therebetween.