JP5041939B2 - Crease forming device - Google Patents

Description

  The present invention relates to a crease forming apparatus that forms a crease in a wrapping paper that wraps the mouth of a bottling container.

  2. Description of the Related Art Conventionally, as shown in FIG. 2, in a gift product such as a bottled food container, the container 51 is covered with a wrapping paper 52 called “shade paper” at the mouth of the container 51 for the purpose of producing a high-class feeling or a design aesthetic. A device in which the periphery of the mouth is tied with a string-like stopper (not shown) is known. When packaging this type of product, since the wrapping paper 52 is square and the container mouth is circular, the center of the wrapping paper 52 corresponding to the top (mouth) of the container 51 is polygonal (see FIG. In this example, it is necessary to fold each side of the wrapping paper 52 so as to be a regular octagon) and to fold so that a ridge 53 is formed between the corner and the side of the wrapping paper 52. In this case, since it is necessary to prevent the appearance of the product from being impaired due to the nature of the product, the wrapping paper 52 does not cause wrinkles or slack, and the position of the folded portion is point-symmetric with respect to the center point or It is necessary to form folds so as to be symmetrical with respect to the center line.

  By the way, the packaging operation as described above has been performed manually. However, this work is not only very time-consuming, but also requires skill, and even a highly skilled worker has a limited number of processes, improving work efficiency and work. Reduction of the burden on the elderly is desired.

  The present invention has been made in view of such circumstances, and the operation of forming a crease in the wrapping paper that wraps the mouth of the bottling container can be easily performed by a simple device without using a skilled worker. It is an object of the present invention to provide a crease forming device that can be reliably performed.

In order to achieve the above object, a crease forming apparatus according to the present invention comprises:
A crease forming device for forming a crease in wrapping paper that wraps the mouth of a container,
A polygonal male mold and a female mold having a through-hole through which the male mold can pass and having an inner surface facing the outer surface of the male mold;
The inner surface of the female mold is adjacent to the inner surface of the first group formed on a straight surface parallel to the outer surface of the male mold from the upper end to the lower end, and the upper end portion is the female mold. A lower portion formed on an inclined surface inclined inwardly of the second surface and connected to the inclined surface is configured by a second group inner surface formed on a straight surface parallel to the outer surface of the male mold. It is characterized (first invention).

  In the present invention, the upper end portion of the first group inner side surface adjacent to the inclined surface of the second group inner side surface is aligned with the boundary line between the straight surfaces of the first group inner side surface and the second group inner side surface. It is preferable to be inclined toward the inner surface side of the second group (second invention).

  Moreover, it is preferable that a guide member for guiding the outer peripheral edge of the wrapping paper on which the fold is formed protrudes on the outer edge of the upper surface of the female mold (third invention).

  In the present invention, with the wrapping paper to be creased placed on the upper surface of the female mold, when the male mold is lowered so as to pass through the female through hole, the central portion of the wrapping paper is placed on the lower surface of the male mold. The wrapping paper is sandwiched between the lower end edge of the outer side surface of the male mold and the upper end edge of the inner side surface of the female mold, and the male outer surface is moved as the male mold descends. A crease is formed in the wrapping paper as the peripheral edge of the wrapping paper rises while the peripheral edge of the wrapping paper is gradually sandwiched between the inner surface of the female mold. At this time, the inner surface of the first group of the female mold is formed on the straight surface parallel to the outer surface of the male mold from the upper end to the lower end, and the inclined surface is formed on the upper end portion of the inner surface of the second group. The part of the wrapping paper corresponding to the inner surface of the first group rises, and the part of the wrapping paper corresponding to the inner surface of the second group rises with a time delay. As a result, at the boundary portion between the portion of the wrapping paper corresponding to the inner surface of the first group and the portion of the wrapping paper corresponding to the inner surface of the second group, the inner side toward the portion of the wrapping paper corresponding to the inner surface of the second group As the male mold descends, a clear crease line is formed at the position of the collar, and when the male mold comes out of the female mold, the mouth of the container is placed in the center of the wrapping paper. A polygonal crease line that matches the portion is formed, and a crease is formed on the peripheral edge of the wrapping paper to form a crease that covers the mouth of the container.

  According to the present invention, a crease can be formed in the wrapping paper that wraps the mouth of the container easily and reliably with a simple device without relying on a skilled worker. Work can be eliminated, the burden on the operator can be reduced, and work efficiency can be improved.

  According to the configuration of the second aspect of the invention, the operation of forming a ridge on the wrapping paper can be performed more reliably. Further, according to the configuration of the third aspect of the invention, the wrapping paper can be reliably positioned by the guide member, so that the fold forming operation can be performed more easily.

  Next, specific embodiments of the crease forming apparatus according to the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view showing the overall configuration of a crease forming device according to an embodiment of the present invention. FIG. 2 is a perspective view showing a state in which the wrapping paper formed with the crease forming apparatus according to the present embodiment is covered with the bottling food container.

  As shown in FIG. 2, the crease forming apparatus 1 according to the present embodiment covers the mouth of the bottled food container 51 with a wrapping paper 52 and binds the periphery of the mouth of the container 51 with a string-like stopper. Is used to form a crease in the wrapping paper 52. As shown in FIG. 1, the crease forming apparatus 1 includes a base 2, a support 3 standing on the base 2, and a female mold 5 attached to an intermediate portion of the support 3 via a clamper 4. And a holding frame 8 that is supported so as to be vertically slidable with respect to the support block 3A fixed to the upper part of the support column 3 and holds the male mold 6 and the male driving mechanism section 7. A lower end portion of a rod 9 extending in the vertical direction is fastened and fixed to the upper portion of the male mold 6, and this rod 9 is guided by a guide cylinder 10 fixed to the upper surface of an arm portion 8 a protruding forward of the holding frame 8. It can slide up and down.

  A first mounting member 11 extending in the horizontal direction is fixed to the upper end portion of the rod 9, and a second mounting member 12 is fixed to the intermediate portion. A guide portion 11 a for guiding a pole 13 erected on the upper surface of the holding frame 8 is formed at the base end portion of the first mounting member 11, and a compression coil spring 13 A is formed on the outer peripheral surface of the pole 13. Is wrapped around. Further, a compression coil spring 14 that accumulates a restoring force for returning the holding frame 8 to the rising standby position when the holding frame 8 is lowered with respect to the support block 3A on the upper outer peripheral surface of the column 3. Is wrapped around.

  Next, the male drive mechanism unit 7 will be described. The male drive mechanism 7 includes a handle 16 that is pivotally connected to the holding frame 8 by a pivot 15, a first arm 17 having one end fixed to an intermediate portion of the handle 16, and a lower end having a first end. A second arm 18 that is pivotably connected to the other end of one arm 17 and has an upper end pivotally connected to the second mounting member 12, and an upper end that is connected to the base end of the handle 16. The third arm 19 is connected to the support block 3 </ b> A so as to be rotatable and the lower end is rotatably connected to the support block 3 </ b> A.

  In the male drive mechanism 7, when the handle 16 is operated in the direction of arrow P in the figure, the handle 16 is rotated around the pivot 15 so that the holding frame 8 supports the compression coil spring 14 while compressing it. While being lowered with respect to the block 3A, the second mounting member 12 is pushed down vertically by the turning force of the handle 16 via the first arm 17 and the second arm 18, and is fixed to the second mounting member 12. The rod 9 is moved vertically downward along the guide tube 10 and the male die 6 is lowered. In this way, as the descending stroke of the rod 9, a stroke approximately twice the descending stroke of the holding frame 8 can be obtained. Further, when the holding frame 8 is lowered, the compression coil spring 14 is compressed and the restoring force is stored, and when the operating force to the handle 16 is released, the holding frame 8 and the urging force of the compression coil spring 14 are released. The rod 9 is returned to the ascending standby position. When the rod 9 is lowered, the pole 13 is guided and slid along the guide portion 11a of the first mounting member 11, so that the rod 9 is smoothly lowered.

  Next, detailed configurations of the female mold 5 and the male mold 6 will be described. FIG. 3 shows a perspective view of the male mold 6 and the female mold 5, and FIG. 4 shows a plan view (a) of the female mold 5 and a cross-sectional view taken along the line A-A of FIG.

The male mold 6 is mounted and fixed to the lower end portion of the rod 9, and in this embodiment has an octagonal prism shape. The outer surface of the male mold 6 is composed of every other first group outer surface 20 facing each other and every other second group outer surface 21 facing each other, and the width of the first group outer surface 20 W ₁ is formed to be slightly shorter than the width W ₂ of the second group outer surface 21.

  On the other hand, the female mold 5 has a through hole 22 through which the male mold 6 can pass with a predetermined clearance between the female mold 5 and the inner surface of the through hole 22. The outer side surfaces 20 and 21 are formed so as to face each other. Here, the height of the female mold 5 is slightly larger than the height of the male mold 6.

The inner surface of the female mold 5 includes a first group inner surface 23 corresponding to the first group outer surface 20 of the male mold 6, and a second group inner surface 24 corresponding to the second group outer surface 21 of the male mold 6. The width W _{3 of} the first group inner side surface 23 is formed so as to be slightly shorter than the width W _{4 of} the second group inner side surface 24 in correspondence with the width of the outer side surfaces 20, 21 of the male mold 6. ing.

  The first group inner side surface 23 is formed on a straight surface parallel to the outer side surface of the male mold 6 from the upper end to the lower end, and the second group inner side surface 24 is inclined with the upper end portion inward toward the female mold 5. A lower portion formed on the inclined surface 24 a and connected to the inclined surface 24 a is formed on a straight surface 24 b parallel to the outer surface of the male mold 6. Here, the straight surface 24b of the second group inner side surface 24 is a plane that is continuous with the straight surface of the first group inner side surface 23 via a vertical boundary line 25, and the second group inner side surface 24 is inclined. The surface 24 a is a step-down plane with respect to the straight surface of the first group inner side surface 23.

  Further, as shown in FIG. 4B, ridge lines 26 and 27 on both side edges of the upper end portion of the first group inner side surface 23 adjacent to the inclined surface 24 a of the second group inner side surface 24 with respect to the vertical boundary line 25. Thus, the boundary surface 28 between the first group inner side surface 23 and the inclined surface 24a continuous with the ridge lines 26 and 27 is inclined to the second group inner side surface 24 side (expanding upward). The triangular inclined surface is inclined to the inclined surface 24a side with respect to the vertical surface. According to such a configuration, when forming the ridge 53 on the wrapping paper 52 as will be described later, the wrapping paper 52 moves along the boundary surface (triangular inclined surface) 28, and the crease is formed. The operation can be performed more reliably.

  On the other hand, a guide member 29 for guiding the outer peripheral edges of the two sides of the wrapping paper 52 protrudes from the outer edge portion of the upper surface of the female mold 5, and the positioning of the wrapping paper 52 can be reliably performed by the guide member 29. ing.

  Next, an operation for forming a crease on the wrapping paper 52 using the crease forming apparatus 1 having the above configuration will be described.

  First, a wrapping paper (square wrapping paper in this embodiment) 52 to be creased is placed on the upper surface of the female mold 5 along the guide member 29 at the outer edge. In this state, when the handle 16 is operated in the direction of the arrow P in FIG. 1, the second attachment member 12 and the rod 9 fixed thereto are moved vertically downward along the guide tube 10, thereby causing the male mold 6 to move. Be lowered. Then, when the male mold 6 tries to enter the through hole 22 of the female mold 5, the lower surface of the male mold 6 is brought into contact with the central portion of the wrapping paper 52, and as shown in FIG. As the wrapping paper 52 is sandwiched between the lower edge of the outer surface and the upper edge of the inner surface of the female mold 5, the outer surface of the male mold 6 and the inner surface of the female mold 5 move as the male mold 6 moves downward. The peripheral edge of the wrapping paper 52 rises while being gradually sandwiched between the side faces.

  Here, the first group inner side surface 23 of the female die 5 is formed on a straight surface parallel to the first group outer side surface 20 of the male die 6 from the upper end to the lower end, and the upper end portion of the second group inner side surface 24 of the female die 5. Since the inclined surface 24a is formed on the upper surface of the first group inner side surface 23 of the female die 5, as shown in FIGS. The wrapping paper 52 is sandwiched between the first group outer side surface 20 of the male mold 6 and the wrapping paper part (part corresponding to the side part of the wrapping paper 52) 52a corresponding to the first group inner side face 23 rises, and the time A wrapping paper 52 is sandwiched between the lower end edge of the inclined surface 24a of the second group inner side surface 24 and the second group outer side surface 21 of the male mold 6 with a delay, and a wrapping paper part corresponding to the second group inner side surface 24 ( The portion 52b corresponding to the corner portion of the wrapping paper 52 rises.

  Further, when the wrapping paper portion 52 b corresponding to the second group inner side surface 24 rises, the ridge lines 26 and 27 on both side edges of the upper end portion of the first group inner side surface 23 are in the second group inner side surface with respect to the vertical boundary line 25. Since the shape is inclined toward the 24 side, the wrapping paper portion in the boundary region between the wrapping paper portion 52a corresponding to the first group inner side surface 23 and the wrapping paper portion 52b corresponding to the second group inner side surface 24 is By moving along the boundary surface 28 between the first group inner side surface 23 and the inclined surface 24a, the boundary region portion is folded inward toward the wrapping paper portion 52b corresponding to the second group inner side surface 24, The collars 53 (see FIG. 7) are formed on both sides of the wrapping paper portion 52b.

  When the descending operation of the male mold 6 further proceeds, the wrapping paper portion 52b and the flange 53 corresponding to the second group inner side surface 24 are connected to the straight surface 24b of the second group inner side surface 24 and the second group outer side surface of the male mold 6. When the male mold 6 is completely pulled out from the through hole 22 of the female mold 5, a container mouth is formed in the central portion of the wrapping paper 52. An octagonal crease line that coincides with the portion is formed, and a clear ridge 53 is formed on the peripheral edge of the wrapping paper, thereby forming a crease that covers the mouth of the container (see FIG. 2). ).

  As described above, according to the crease forming apparatus 1 of the present embodiment, the wrapping paper 52 is placed and positioned on the female mold 5 and the handle 16 is rotated without using a skilled worker as in the prior art. A fold can be formed in the wrapping paper that wraps around the mouth of the container easily and reliably by a simple operation of moving. Therefore, it is possible to eliminate the troublesome manual work by the worker, to reduce the burden on the worker, and to improve the work efficiency.

  In the above-described embodiment, the male mold 6 has an octagonal prism shape, but this male mold may be a quadrangular prism, a hexagonal column, a decagonal column or more as long as it is a polygonal column having an even number of vertices. good. Needless to say, the female mold is changed in accordance with the shape of the male mold.

  In the above embodiment, the ridge lines 26 and 27 on both side edges of the upper end portion of the first group inner side surface 23 are inclined toward the second group inner side surface 24 side. However, the ridge lines 26 and 27 are vertical lines. Even if it forms, the effect similar to the said embodiment can be acquired.

The perspective view showing the whole crease forming device composition concerning one embodiment of the present invention. The perspective view in the state where the packaging paper in which the crease was formed using the crease forming device of this embodiment was put on the bottling food container. Male and female perspective views A plan view of a female mold (a) and a cross-sectional view taken along line A-A (b) Wrench formation procedure explanatory diagram (1) Wrench formation procedure explanatory diagram (2) Wrench formation procedure explanatory drawing (3)

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fold formation apparatus 6 Male type 7 Male type drive mechanism part 8 Holding frame 9 Rod 16 Handle 20 1st group outer side surface 21 2nd group outer side surface 23 1st group inner side surface 24 2nd group inner side surface 24a Inclined surface 24b Straight surface 25 Vertical boundary lines 26 and 27 Ridge line 28 Boundary surface 29 Guide member

Claims (3)

A crease forming device for forming a crease in wrapping paper that wraps the mouth of a container,
A polygonal male mold and a female mold having a through-hole through which the male mold can pass and having an inner surface facing the outer surface of the male mold;
The inner surface of the female mold is adjacent to the inner surface of the first group formed on a straight surface parallel to the outer surface of the male mold from the upper end to the lower end, and the upper end portion is the female mold. A lower portion formed on an inclined surface inclined inwardly of the second surface and connected to the inclined surface is configured by a second group inner surface formed on a straight surface parallel to the outer surface of the male mold. A crease forming device.   An upper end portion of the first group inner surface adjacent to the inclined surface of the second group inner surface is a second group inner surface with respect to a boundary line between the straight surfaces of the first group inner surface and the second group inner surface. The crease forming apparatus according to claim 1, wherein the crease forming apparatus is inclined to the side.   3. The crease forming apparatus according to claim 1, wherein a guide member that guides an outer peripheral edge of the wrapping paper on which the fold is formed protrudes from an upper edge of the upper surface of the female mold.

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