JP2694581B2 - Roll packaging method and device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll wrapping method and apparatus for wrapping a roll-shaped package having a core protruding from the end surface of a sheet roll.

[0002]

2. Description of the Related Art Generally, a long sheet is handled as a sheet roll wound in a roll on a core. However, in the case of pressure-sensitive paper, the core should be projected from the end face of the sheet roll. In many cases, it is convenient for the subsequent handling by taking up and winding.

The above-mentioned sheet roll is generally handled in a packaged state. However, when the core having the core protruding from the end face of the sheet roll is packaged as an object to be packaged, the sheet roll is wrapped around the outer peripheral face. Although it is possible to automatically perform sheet winding and folding of the packaging sheet to the end surface of the sheet roll by a machine, fixing the side edge portion of the packaging sheet to the packaged object is conventionally performed.
Since it was difficult to mechanize, it was done manually.

[0004]

However, it is not preferable from the viewpoint of improving the production efficiency and reducing the production cost that the manual work is included in a part of the packaging process, and it is desired to fully automate the packaging process. .

In this case, it is conceivable to use a conventional packaging method for the packaged body whose core does not protrude from the end face of the sheet roll to automate the packaging. That is, JP-A-48-33987 and JP-A-54-407
It is difficult to divert the method of fixing the side edge of the packaging sheet into the cavity of the winding core by fixing the side edge of the packaging sheet into the packaged article, as disclosed in Japanese Patent No. 85, Sho 59-7
The method of fixing the side edge portion of the packaging sheet to the inner patch paper pressed against the end surface of the sheet roll as disclosed in Japanese Patent No. 4020 can be used.

However, when attempting to automate the packaging by diverting this method, the packaging device becomes complicated and large in size, and the packaging sheet is a low-cost but elastic vinyl sheet. However, it is not easy to securely attach the side edge portion to the inner liner paper.

The present invention has been made in view of the above circumstances, and it is possible to automatically perform the packaging of a roll-shaped packaged body having a core protruding from the end surface of the sheet roll with simple equipment. It is an object of the present invention to provide a roll wrapping method and device which can be used and which can be made of an inexpensive material.

[0008]

A roll wrapping method and apparatus according to the present invention uses negative pressure suction to wind a side edge portion of a wrapping sheet around an outer peripheral surface of a winding core, and a rubber band for fastening the side edge portion. By doing so, the above-mentioned object is achieved.

That is, the roll wrapping method according to the first aspect of the present invention provides a packaged object including a winding core and a sheet roll wound around the winding core so that a part of the winding core is projected from the end surface. In a roll wrapping method for wrapping, ◆ the outer peripheral surface of the sheet roll, a packaging sheet, after being wound in a tubular shape so that the side edge portion of the packaging sheet protrudes a predetermined length laterally from the end surface of the sheet roll, By pressing the side edge portion of the packaging sheet against the outer peripheral surface of the winding core and rotating the packaged object while negatively suctioning the side edge portion, the side edge portion is moved to the outer peripheral surface of the winding core. Wrapped around
After that, the side edge portion is fixed to the outer peripheral surface of the winding core with a rubber band, and the roll wrapping method according to claim 2, further, further comprises the side edge portion. Of the above, the portion protruding from the rubber band is cut off.

A roll wrapping device according to a third aspect of the present invention is
In a roll wrapping device for wrapping an article to be wrapped, which comprises a winding core and a sheet roll wound around the winding core so that a part of the winding core is projected from the end surface, A wrapping means for wrapping the wrapping sheet in a tubular shape such that a side edge portion of the wrapping sheet protrudes laterally from the end surface of the sheet roll by a predetermined length, and the side edge portion of the wrapping sheet of the winding core. Suction means that presses against the outer peripheral surface and suctions the side edge portion under negative pressure, rotation driving means that winds the side edge portion around the outer peripheral surface of the winding core by rotating the packaged object, and the winding core. A fastening means for fastening the side edge portion wound around the outer peripheral surface of the outer peripheral surface of the winding core with a rubber band, and a cutting-off means for cutting off a portion of the side edge portion protruding from the rubber band. Be prepared And it is characterized in and.

[0011]

As described above, the side edge portion of the packaging sheet is pressed against the outer peripheral surface of the winding core, and the packaged object is rotated while suctioning the side edge portion under negative pressure. The edge part is wound around the outer peripheral surface of the core, and then the side edge part is fixed to the outer peripheral surface of the core with a rubber band. The body can be automatically packaged with a simple facility, which can improve the productivity and reduce the production cost in the packaging process.

Further, according to the above construction, even if the packaging sheet is made of a material that is difficult to conform to the shape of the packaged article due to its elasticity, the packaging is performed steadily, so the range of choices for the packaging sheet material is widened. In addition, it is possible to use an inexpensive material, which can reduce the cost of the roll package.

Further, since the side edge of the packaging sheet is fixed to the outer peripheral surface of the winding core by using the rubber band, the tape paste produced when the fixing is made by using the tape or the like. There is no risk of malfunction and the packaging sheet can be reused.

In this case, if the packaging sheet protruding from the rubber band is cut off as described in claim 2, the packaging sheet can be supported even if the core is supported at the time of material handling in a later step. There is no risk that the packaging sheet will be torn or dust will be generated due to being caught.

[0015]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a process chart showing an embodiment of the roll wrapping method according to the present invention.

In this roll wrapping method, a packaged body 6 comprising a winding core 2 and a sheet roll 4 wound around the winding core 2 such that both ends of the winding core 2 are projected from both end surfaces, is provided. This is a roll packaging method for packaging, and roll packaging is performed through a sheet cylinderizing process, a gathering process, a banding process, and a Fentz cutting process.

That is, the sheet cylindrical step is shown in FIG.
As shown in (a), a vinyl sheet 8 serving as a packaging sheet is formed on the outer peripheral surface of the sheet roll 4 so that both side edges of the vinyl sheet 8 are protruded laterally from both end surfaces of the sheet roll 4 by a predetermined length. After being wound in a circular shape, as a gathering step, as shown in FIG. 2 (b), both side edge portions 8a of the vinyl sheet 8 are pressed against the outer peripheral surface of the winding core 2 and the both side edge portions 8a are sucked with negative pressure. By rotating the packaged body 6 so that both side edge portions 8a are wound around the outer peripheral surface of the winding core 2, and then, as a banding step, as shown in FIG.
Secure both side edges 8a to the outer peripheral surface of the winding core 2 with the rubber band 10,
Further, as shown in FIG. 3D, as a fences cutting step, the portions of the side edges 8a protruding from the rubber band 10 are cut off.

The roll wrapping is performed by the roll wrapping device shown in FIGS. 2, 3, 4, and 5. Hereinafter, each step of the roll packaging will be described with reference to these drawings.

In the sheet cylindrical step, as shown in FIG. 1 (a), the leading end portion of the vinyl sheet 8 supplied through the guide roller 20 is pulled down vertically by the gripping device 22 into a hanging curtain shape, and then the sheet is covered. The packaging body 6 is moved in the horizontal direction and pressed against the vinyl sheet 8, and then the pair of heat seal bars 24 sandwich the vinyl sheet 8 from above and below to weld them together, so that a cylindrical winding is performed. It has become.

Specifically, first, as shown in FIG.
The packaged object 6 conveyed to the A position by 26 is moved to the C position by the transfer machine 28, and then the vinyl sheet 8 is pulled down by the gripping device 22. At the same time, the vinyl sheet feeding device 30 operates. After that, the packaged body 6 is moved to the position B by the transfer machine 28 and placed on the roller 32, and then the heat seal bar 24 is operated.

The gathering step is performed by using a pair of suction boxes 34, as shown in FIG. 1 (b). As shown in FIGS. 2 and 3, each suction box 34 descends from above the winding core 2 of the packaged body 6 by cylinder drive to press the vinyl sheet 8 against the outer peripheral surface of the winding core 2. Moreover, in order to enhance the negative pressure suction effect, an inverted U-shaped suction portion corresponding to the diameter of the winding core 2 is formed. The suction box 34 presses both side edge portions 8a of the vinyl sheet 8 against the outer peripheral surface of the winding core 2 and sucks a negative pressure, while the roller 32 holds the packaged body 6
The side edges 8a are wound around the outer peripheral surface of the winding core 2 by rotating.

In the banding step, as shown in FIG. 1 (c), both side edges 8a of the vinyl sheet 8 are fixed to the outer peripheral surface of the winding core 2 by the ring-shaped rubber band 10. The rubber band 10 is fastened by using a rubber band fastening device 36 that moves up and down by a cylinder drive, as shown in FIG. That is, as shown in FIG. 4 (a), in the rubber band fastening device 36, the rubber band 10 is bridged over the core receiving portion that opens downward as shown by the chain double-dashed line in the figure. When the fastening device 36 descends, the rubber band 10 is wound around the winding core 2 as shown by the solid line in the figure, and then the pair of rollers 38 is rotated as shown in FIG. After winding 10 around the entire outer peripheral surface of the winding core 2 in a ring shape, a pair of heat seal heads 42 rotated together with these rollers 38 are brought into contact with each other to seal and cut the rubber band 10, As shown in FIG. 6C, the roller 38 and the heat seal head 42 are rotated to their original positions.

After the banding step is completed, the rubber band fastening device 36 moves to the outside of the winding core 2 in FIG. 3, then the packaged body 6 moves to the position C in FIG. In FIG. 3, the dressing device 36 moves to the inside of the winding core 2 and then moves upward to the initial position. After the rubber band fastening device 36 is released in this manner, the packaged body 6 is again shown in FIG.
At, move to position B and place on roller 32.

In the fence cutting process, as shown in FIG. 1 (d), the vinyl sheet 8 protruding from the rubber band 10 is cut off by a pair of fence cutters 40. As shown in FIG. 40 is rotatably attached to the suction box 34.
The scraps of the vinyl sheet 8 cut off by the Fent's cutter 40 are sucked into the suction box 34, discharged to a discharge port (not shown), and conveyed to another room.

As described in detail above, according to this embodiment,
By pressing both side edge portions 8a of the vinyl sheet 8 against the outer peripheral surface of the winding core 2 and rotating the packaged body 6 while suctioning the both side edge portions 8a under negative pressure, the both side edge portions 8a are wound around the outer circumference of the winding core 2. Since it is wound around the surface, after that, both side edge portions 8a are fixed to the outer peripheral surface of the winding core 2 with the rubber band 10, and further, portions of the both side edge portions 8a protruding from the rubber band 10 are cut off. It is possible to automatically perform the packaging of the roll-shaped packaged body 6 in which the winding core 2 projects from the end surface of the sheet roll 4 with simple equipment, thereby improving the productivity in the packaging process and reducing the production cost. You can

Further, according to the present embodiment, even if the packaging sheet is the vinyl sheet 8 which is difficult to fit into the shape of the packaged article due to its elasticity, the packaging is steadily performed, so that the selection range of the material of the packaging sheet is wide. It is possible to spread and use inexpensive materials, which can reduce the cost of the roll package.

Further, since both side edges of the vinyl sheet 8 are fixed to the outer peripheral surface of the winding core 2 by using the rubber band 10, it occurs when the tape is fixed by using a tape or the like. There is no fear of adhesive failure of the tape, and the vinyl sheet 8 can be reused.

Further, since the vinyl sheet 8 protruding from the rubber band 10 is cut off, even if the core 2 is supported at the time of material handling in the subsequent process, the vinyl sheet 8 is caught and the vinyl sheet 8 is caught. There is no possibility that 8 will be broken or scraps will be generated.

[Brief description of the drawings]

FIG. 1 is a process diagram showing an embodiment of a roll packaging method according to the present invention.

FIG. 2 is a front view showing a roll wrapping device used in the above embodiment.

FIG. 3 is a side view of the roll packaging device.

FIG. 4 is a view showing an operation of a rubber band fastening device of the roll packaging device.

FIG. 5 is a view showing a fence cutter of the roll packaging device.

[Explanation of symbols]

 2 core 4 sheet roll 6 packaged object 8 vinyl sheet (packaging sheet) 8a both side edge (side edge) 10 rubber band 22 gripping device 24 heat seal bar (wrapping means) 32 roller (rotation drive means) 34 suction Box (suction means) 36 Rubber band fastening device (fastening means) 40 Fents cutter (cutting-off means)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shinshu Kabumori, No. 200 Onakazato, Fujinomiya-shi, Shizuoka Prefecture Fuji Shashin Film Co., Ltd. (56) Reference JP 4-87917 (JP, A) JP JP 3-176331 (JP, A)

Claims (3)

(57) [Claims] 1. A roll wrapping method for wrapping an article to be packaged, comprising: a core; and a sheet roll wound around the core so that a part of the core protrudes from an end surface of the core. On the outer peripheral surface of the packaging sheet, the side edge portion of the packaging sheet is wound in a tubular shape so as to protrude laterally by a predetermined length from the end surface of the sheet roll, and then the side edge portion of the packaging sheet is wound. The side edge portion is wound around the outer peripheral surface of the winding core by pressing the outer peripheral surface of the core and suctioning the side edge portion under negative pressure, and then the side edge portion is wound around the outer peripheral surface of the core. A roll wrapping method, wherein the band is fixed to the outer peripheral surface of the winding core. 2. The method according to claim 1, wherein after the side edge portion is fixed to the outer peripheral surface of the winding core with the rubber band, a portion of the side edge portion protruding from the rubber band is cut off. Roll packaging method. 3. A roll wrapping device for wrapping an article to be packaged, which comprises a winding core and a sheet roll wound around the winding core so that a part of the winding core protrudes from an end surface of the winding roll. On the outer peripheral surface of the packaging sheet, the wrapping means for wrapping the packaging sheet in a tubular shape so that the side edge portion of the packaging sheet protrudes laterally from the end surface of the sheet roll by a predetermined length, and the side edge portion of the packaging sheet. Suction means that presses against the outer peripheral surface of the winding core and sucks the side edge portion under negative pressure, and rotation driving means that rotates the side edge portion around the outer peripheral surface of the winding core by rotating the packaged object. Fastening means for fixing the side edge portion wound around the outer peripheral surface of the winding core to the outer peripheral surface of the winding core with a rubber band, and a cutting-off portion for cutting off a portion of the side edge portion protruding from the rubber band. Drop means A roll wrapping device characterized by being provided.