JPH09131364A - Folding device for pants type disposable diaper, and folding method for pants type disposable diaper using same device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and securely fold a pants type disposable diaper. SOLUTION: A pants type disposable diaper 1 is formed on a liquid absorption body comprising liquid absorbing material provided between a liquid permeable top sheet and a liquid non-permeable back sheet. A pants type disposable diaper folding device folds each of both side parts 4, 4 connecting an abdomen side part 2 and a back side part 3 to each other in between the abdomen side part 2 and the back side part 3 in such a way that the abdomen side part 2 and the back side part 3 are combined with each other. It comprises belts to be applied to the pants type disposable diaper 1 used as a first carrying belt 10 and a third carrying belt 15 provided above and under the pants type disposable diaper 1 using the belts which is stuck to the pants type disposable diaper.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pants-type disposable diaper in which both side portions connecting an abdominal portion and a dorsal portion are folded between the abdominal portion and the dorsal portion, respectively. The present invention relates to a folding device for a pants-type disposable diaper that folds an abdominal portion and the back portion so as to overlap each other, and a method for folding a pants-type disposable diaper using this device.

[0002]

2. Description of the Related Art A pant-type disposable diaper made of an absorbent member having a liquid-retaining absorber between a liquid-permeable top sheet and a liquid-impermeable back sheet has a ventral side. After folding both side portions connecting the portion and the back side portion between the abdominal side portion and the back side portion, respectively, the abdominal side portion and the back side portion are folded so as to be overlapped with each other. (This folding method is called Gazette folding.) It is designed to be shipped.

By the way, as a device for gusset-folding training pants, which is not a pants-type disposable diaper, one disclosed in US Pat. No. 4,739,910 has been proposed. This device conveys training pants in a folded state in which the abdominal part and the dorsal part are overlapped with each other by a mesh-shaped belt conveyor provided on the upper and lower sides, and by suction means provided on the back side of the belt, respectively. After the abdominal and dorsal sides of the training pants are vacuum-sucked to the respective belts to open the body insertion opening, the body insertion opening is inserted into the folding member provided with the protrusion for forming the folding portion inside. The plunger inserted more is configured to push the training pants.

[0004]

In the apparatus constructed as described above, since the training pants are attracted to the belt by the suction means, the adhesion between the belt and the training pants is indispensable for enhancing the attraction force. That is, when the adhesiveness is impaired, the suction air leaks from the non-adhered portion, and the suction force is greatly reduced.

For this reason, in particular, the pants-type disposable diaper has an elastic member provided in the lateral direction of the body part in view of its performance, and the contracting action causes the surface of the diaper to have a wavy shape. It is difficult to adhere to the belt.

Therefore, an object of the present invention is to provide a folding device for a pants-type disposable diaper which can easily and surely fold a pants-type disposable diaper and a method for folding a pants-type disposable diaper using this device. .

[0007]

According to the first aspect of the present invention,
A pants-type disposable diaper formed of an absorbent member in which a liquid-retaining absorber is provided between a liquid-permeable top sheet and a liquid-impermeable back sheet, and an abdominal part and a back part. In the folding device for a pants-type disposable diaper, both side portions that connect to each other are folded between the abdominal side portion and the back side portion, respectively, and the abdominal side portion and the back side portion are folded so as to overlap each other. In the middle of conveyance of the pants-type disposable diaper, first conveyance means and second conveyance means that are provided above and below the pants-type disposable diaper and convey the pants-type disposable diaper from an inlet to an outlet, The pants-type disposable diaper is provided with pants-folding means for folding both side portions between the abdominal side portion and the back-side portion, and the first conveying means is provided with a first distance provided at a predetermined distance. The And a second roll, the surface of which is hung between the roll and the second roll so as to adhere to the ventral side or the back side of the pants-type disposable diaper, and the first transport belt. It comprises a third roll provided in front of the belt and a second transport belt hung between the second rolls, and the second transport means is spaced apart from the first roll by a predetermined distance. The above-mentioned pants having a surface which is hung between a fourth roll and a fifth roll obliquely above or below the fourth roll and diagonally above or below the fourth roll. Type disposable diaper, a third conveyor belt adapted to adhere to the ventral side portion or the back side portion, and the third roll provided in front of the third conveyor belt and a predetermined distance Between a sixth roll and a fifth roll, which are arranged to face each other with a space therebetween. By providing the folding device of the pant type disposable diaper, characterized in that a fourth conveyor belt that hung in running obliquely downward or obliquely upward, is obtained by achieving the above object.

According to a second aspect of the present invention, both side portions of the pants-type disposable diaper are respectively placed between the abdominal side portion and the back-side portion by using the folding apparatus for the pants-type disposable diaper according to the first aspect. In a folding method of a pants-type disposable diaper that is folded and folded so that the ventral side portion and the back side portion are overlapped with each other, the pants-type disposable diaper is inserted between the first roll and the fourth roll that are inlets. The pants-type disposable diaper is inserted while being gradually expanded by the first conveyor belt and the third conveyor belt, and the pants-type disposable diaper is conveyed by the pants-folding means during the conveyance. After folding both side portions of the pants-type disposable diaper between the abdominal side portion and the back-side portion, the pants-type disposable diaper is The sheet is discharged from the outlet between the third roll and the sixth roll while being folded by the second transport belt and the fourth transport belt so that the belly side portion and the back side portion are overlapped with each other. The present invention provides a method for folding a pants-type disposable diaper characterized by the above.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a folding device for a pants-type disposable diaper of the present invention and a method for folding a pants-type disposable diaper using this device will be described below with reference to the drawings.

FIG. 1 is a side view of a folding device for a pants-type disposable diaper according to the present embodiment, FIG. 2 is a plan view of a folding device for a pants-type disposable diaper with the second conveying means removed, and FIG. 3 is a pants-type device. It is a top view which shows the 2nd conveyance means of the folding device of a disposable diaper.

As shown in FIGS. 1 and 2, the folding device for the pants-type disposable diaper of the present embodiment has a liquid-retaining absorber between a liquid-permeable top sheet and a liquid-impermeable back sheet. A pants-type disposable diaper 1 formed of an absorbent member provided with a pair of side portions 4 and 4 for connecting a ventral side portion 2 and a back side portion 3 to the ventral side portion 2 and the back side portion, respectively. 3 between the ventral side portion 2 and the back side portion 3
It is designed to be folded so that and are overlapped.

This apparatus is provided above and below with the pants-type disposable diaper 1 sandwiched therebetween, and conveys the pants-type disposable diaper 1 from an inlet toward an outlet, and a second conveyor 6 and a second conveyor 6. During the transportation of the pants-type disposable diaper 1, the pants-folding means 7, 7 for folding both side portions 4, 4 of the pants-type disposable diaper 1 between the abdominal side portion 2 and the back side portion 3, respectively. It has and.

The folding device for the pants-type disposable diaper of this embodiment will be described in more detail. As shown in FIGS. 1 and 2, the first conveying means 5 is hung between a first roll 8 and a second roll 9 provided at a predetermined distance, and the surface 10a is the underpants type. Disposable diaper 1
Between the first transport belt 10 and the third roll 11 provided in front of the first transport belt 10 and the second roll 9 It is composed of the hung second transport belts 12, 12.

The first conveyor belt 10 has the central portion of the underpants type disposable diaper 1 placed thereon, and the underpants type disposable diaper 1 is provided with a second roll from the entrance side where the first roll 8 is provided. The roll 9 is conveyed to the exit side. This first conveyor belt 10
Is an endless belt having an annular shape, and its surface 1
0a adheres to the abdominal part 2 of the pants-type disposable diaper 1 described above. For example, the surface 10a of the first conveyor belt 10 has a convex portion of a planar fastener such as a so-called magic tape (registered trademark of Kuraray Co., Ltd.) which is intertwined with the pants-type disposable diaper 1 whose outer surface is made of non-woven fiber. Male material is provided. By using this male material, the non-woven fibers on the surface of the pants-type disposable diaper are entangled with each other.
And the pants-type disposable diaper 1 are firmly bonded.

The second conveyor belts 12, 12 are the first conveyor belts 10 wound around the second roll 9.
The side edge portions of the pants-type disposable diaper 1 provided on both sides of the gusset are placed and conveyed to the outlet where the third roll 11 is provided. The second conveyor belts 12 and 12 are also endless belts having an annular shape like the first conveyor belt 10. In addition, the second conveyor belt 12,
Unlike the first conveyor belt 10, the numeral 12 conveys the pants-type disposable diaper 1 after being gusset-folded to the exit, so that the male material is not provided on the surface thereof.

On the other hand, the second conveying means 6 is the same as that shown in FIGS.
As shown in FIG. 4, a fourth roll 13 and a fourth roll 1 are arranged to face each other at a predetermined distance from the first roll 8.
3 is hung between the fifth rolls 14 provided obliquely upward with respect to 3 and runs obliquely upward, the surface of which is adapted to adhere to the back side part 3 of the pants-type disposable diaper 1 described above. Conveying belt 15 and the third conveying belt 15
A fourth transporting device that is provided in front of the third roll 11 and is placed between the sixth roll 16 and the fifth roll 14 that face each other at a predetermined distance from the third roll 11 and runs diagonally downward. It is composed of belts 17, 17.

The third conveyor belt 15 is the first conveyor belt.
The conveyor belt 10 is provided obliquely upward so that the facing distance thereof gradually increases from the entrance side of the pants-type disposable diaper 1 toward the exit side. Like the first conveyor belt 10, the third conveyor belt 15 has an annular endless belt whose surface 15a is attached to the back side portion 3 of the pants-type disposable diaper 1. It is said that. This third conveyor belt 15
The male material is provided on the surface 15a of the.

The fourth conveyor belts 17 and 17 are obliquely downward toward the exit side where the sixth roll 16 is provided, so that the facing distance between the second conveyor belts 12 is gradually narrowed. It is provided in. The fourth conveyor belts 17, 17 are provided on both sides of the third conveyor belt 15 hung on the fifth roll 14, respectively.

The fourth conveyor belts 17, 17 are also provided.
Touches both side edge portions of the pants-type disposable diaper 1 folded by the gazette and conveyed by the third conveyor belt 15, and the back side portion 3 of the pants-type disposable diaper 1 is
Is peeled off from the third conveyor belt 15 and the pants-type disposable diaper 1 is conveyed to the exit.

The fourth conveyor belts 17, 17
Is for transporting the pants-type disposable diaper 1 after being gusset-folded to the outlet, like the second transport belts 12 and 12, so that the male material is not provided on the surface thereof. It is an endless belt that forms a ring.

As shown in FIG. 2, the pants-type disposable diaper 1 is conveyed to the pants-folding means 7, 7 by the cooperation of the first conveyor belt 10 and the third conveyor belt 15. They are provided on both sides of the first carrying belt 10 sandwiched therebetween during carrying. The pants-folding means 7, 7 are so-called substantially Z-shaped by folding both side portions 4, 4 of the pants-type disposable diaper 1 between the abdominal side portion 2 and the back side portion 3, respectively. The folded portion 7a is formed as a sharp triangular member.

The tip portions 7b, 7b on the inlet side of the pants folding means 7, 7 are tapered so that they can easily enter both side portions 4, 4 of the pants-type disposable diaper 1. Similarly, the pants folding means 7,
The rear end portions 7c, 7c on the outlet side of 7 are also tapered.

Next, a method for folding the pants-type disposable diaper 1 by gusset-folding the pants-type disposable diaper 1 by using the folding apparatus for the pants-type disposable diaper of the present embodiment configured as described above will be described. .

First, as shown in FIG. 1, the first roll 8 and the fourth roll 1 which are inlets are provided with the body insertion opening 18 of the pants-type disposable diaper 1 folded in two as the insertion side.
The pants-type disposable diaper 1 is inserted between the three. Then, the pants-type disposable diaper 1 is transported to the exit side by the cooperation of the first transport belt 10 and the third transport belt 15.

At this time, the first conveyor belt 10 and the third conveyor belt 10
Since the surfaces 10a, 15a of the conveyor belt 15 are both made of a male material having the convex portion of the planar fastener, they are entangled with the non-woven fibers on the surface of the pants-type disposable diaper 1 and the belts 10, 15 and the pants. The mold disposable diaper 1 is firmly bonded. In addition, the abdominal part 2 of the pants-type disposable diaper 1 is adhered to the first conveyor belt 10, and the back part 3 is adhered to the third conveyor belt 15.

When the pants-type disposable diaper 1 is conveyed in this state, the third conveyor belt 15 is conveyed.
Is provided obliquely above the first conveyor belt 10, so that the body insertion opening 18 of the pants-type disposable diaper 1 is gradually widened. Then, when the body insertion opening 18 is widened, as shown in FIG. 2, the pants folding-in means 7 provided on both sides of the first conveyor belt 10 on both side portions 4 of the pants-type disposable diaper 1, respectively. , 7 are in contact with each other.

At this time, the pants folding-in means 7, 7
Since the tip portions 7b, 7b of the are taper-shaped, they do not get caught in the pants-type disposable diaper 1,
The pants type disposable diaper 1 is inserted into both side portions 4 and 4. Furthermore, the pants-type disposable diaper 1 is the first
When the pants-type disposable diaper 1 is conveyed by the conveyor belt 10 and the third conveyor belt 15, the side portions 4, 4 of the pants-type disposable diaper 1 are moved by the folding portions 7a, 7a of the pants folding means 7, 7 described above. It is folded between the abdominal part 2 and the back part 3.

When the tip of the upper surface of the pants-type disposable diaper 1 in the traveling direction reaches the fifth roll 14, the fourth conveyor belts 17, 17 are hung on both sides of the fifth roll 14, respectively. Therefore, the fourth conveyor belts 17, 17 are caught on the outer edge portion of the pants-type disposable diaper 1 folded by the gusset, and the back side portion 3 of the pants-type disposable diaper 1 is conveyed to the third conveyor belt. It is peeled off from the belt 15.

The pants-type disposable diaper 1 peeled off from the third conveyor belt 15 is sandwiched between the first conveyor belt 10 and the fourth conveyor belts 17, 17 and conveyed. Go, but this fourth conveyor belt 17,
Since the facing distance between 17 and the first transport belt 10 is gradually narrowed, the pants-type disposable diaper 1 is gradually folded while the abdominal part 2 and the back part 3 are folded. The body insertion opening 18 is closed.

When the tip of the lower surface in the traveling direction of the pants-type disposable diaper 1 reaches the second roll 9, the second roll 9 is provided with a second carrying belt 10 on both sides of the first carrying belt 10. Since the belts 12 and 12 are hooked, the second conveyor belts 12 and 12 are caught on the outer edge portion of the folded pants-type disposable diaper 1 and the ventral side portion 2 of the pants-type disposable diaper 1 is moved to the first side. It is peeled off from the conveyor belt 10 of.

Thus, the pants-type disposable diaper 1 is
Second conveyor belts 12, 12 and fourth conveyor belt 1
7 and 17, the ventral side portion 2 and the back side portion 3 are further superposed on each other and discharged from the outlet between the third roll 11 and the sixth roll 16. The pants-type disposable diaper 1 thus obtained is surely folded in the gusset-folded state.

When the pants-type disposable diaper is folded using the folding apparatus for the pants-type disposable diaper having the above-mentioned structure, the pants-type disposable diaper 1 having the wavy surface is formed by the elastic member. It can always be stably attached to the belt regardless of the surface shaping state, and the gusset can be folded with the body insertion opening 18 being surely opened. As a result, the pants-type disposable diaper 1 can be folded easily and reliably. In addition, since the male material having the convex portion of the planar fastener is used as a means for sticking the pants-type disposable diaper 1 to the belt, it is not necessary to use a vacuum suction means, which makes the device large, and the device is small in size. And labor saving can be achieved.

The folding device for the pants-type disposable diaper of the present invention is not limited to the above-described embodiment, and can be appropriately modified without departing from the spirit of the present invention. For example, in the above-described embodiment, the pants-type disposable diaper 1
The abdominal side portion 2 of the above is placed on the first conveyor belt 10 as the lower surface, but it is the same as the opposite direction when the back side portion 3 is placed on the first conveyor belt 10 downward. Has the effect of.

In the above-described embodiment, the pants-type disposable diaper 1 is inserted between the rolls with the body insertion opening 18 as the insertion side, but the same effect can be obtained by inserting it in the opposite direction. .

In the above embodiment, the first conveyor belt 10 is one, and the pants-type disposable diaper 1 described above is used.
The central portion of the pants-type disposable diaper 1 is placed on the side portions 4 and 4 of the pants-type disposable diaper 1 as shown in FIG.
Two conveyor belts 19 and 19 may be used as the first conveyor belt 10 so that the outer edge portion including is placed. Further, between the two transfer belts 19 and 19, between the second roll 9 and the third roll 11, the other transfer belt 20 is provided as the second transfer belt 12. The central portion of the pants-type disposable diaper 1 may be hung on and the running stability may be ensured.

Further, in order to stably convey the pants-type disposable diaper 1, as shown in FIG. 5, the outer edge portions including both side portions 4 and 4 of the pants-type disposable diaper 1 are attached to the belt. As the third conveyor belt 15, two conveyor belts 21 and 21 may be used. Further, between the two conveyor belts 21 and 21 and between the fifth roll 14 and the sixth roller 16, another conveyor belt 22 is provided as the fourth conveyor belt 17. You may hang it.

Since the conveyor belt 22 is provided at a position corresponding to the central portion of the pants-type disposable diaper 1, the two conveyor belts 21 and 21 hung as the third conveyor belt 15 are The pants-type disposable diaper 1 can be more reliably conveyed to the fourth conveyor belts 17, 17, 22.

Further, in order to stably convey the pants-type disposable diaper 1 from the inlet to the outlet, as shown in FIG.
And the third roll 11 may be hung.

Further, in the above-mentioned embodiment, as means for adhering the pants-type disposable diaper 1 to the conveyor belts 10 and 15, a male member having a convex portion of a planar fastener is provided on the surface of the conveyor belts 10 and 15. However, the present invention is not limited to this.

In the above-described embodiment, the surfaces 10a, 1 of the first conveyor belt 10 and the third conveyor belt 15 are also used.
Although the male material having the convex portion of the planar fastener is provided only on 5a, it is more preferable to provide the male material on the surface of the fourth conveyor belt 17 as well.

Further, as shown in FIG. 7, the first carrying means 5 and the second carrying means 6 may be turned upside down. In this case, the gusset can be folded more reliably than the folding device for the pants-type disposable diaper of the previous embodiment.

[0042]

According to the folding apparatus for the pants-type disposable diaper of the present invention, the pants-type disposable diaper can be conveyed while being firmly attached to the first conveyor belt and the third conveyor belt. In addition, the pants-type disposable diaper can be surely folded with the gusset. Further, since the means for sticking the pants-type disposable diaper to the conveyor belt is a simple one such as a surface fastener, it is possible to reduce the size and labor of the device.

Further, according to the folding method of the pants-type disposable diaper of the present invention, the pants-type disposable diaper can be easily and reliably folded. Therefore, the yield and the productivity can be improved.

[Brief description of the drawings]

FIG. 1 is a side view of a folding device for a pants-type disposable diaper of the present invention.

FIG. 2 is a plan view of the folding device for the pants-type disposable diaper with the second transporting device removed.

FIG. 3 is a plan view showing a second conveying means of the folding device of the pants-type disposable diaper of the present invention.

FIG. 4 is a plan view showing a first conveying means in another embodiment.

FIG. 5 is a plan view showing a second conveyance means in another embodiment.

6A and 6B are views showing a first conveying means in still another embodiment, wherein FIG. 6A is a side view and FIG. 6B is a plan view.

FIG. 7 is a side view of a folding device for a pants-type disposable diaper according to another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pants type disposable diaper 2 Ventral side part 3 Dorsal side part 4 Side part 5 1st conveyance means 6 2nd conveyance means 7 Pants folding-in means 10 1st conveyance belt 12 2nd conveyance belt 15 3rd Conveyor belt 17 Fourth conveyor belt

Claims (2)

[Claims] 1. A pant-type disposable diaper formed by an absorbent member having a liquid-retaining absorber between a liquid-permeable top sheet and a liquid-impermeable back sheet, and a ventral side portion thereof. A pants-type disposable diaper in which both side portions connecting the back side portion and the back side portion are folded between the abdomen side portion and the back side portion, respectively, and folded so that the abdominal side portion and the back side portion are overlapped with each other. In the folding device, a first conveying means and a second conveying means, which are provided above and below with the pants-type disposable diaper sandwiched therebetween, for conveying the pants-type disposable diaper from an inlet to an outlet, and the pants-type disposable diaper. In the middle of transportation of the underpants type disposable diaper, there is provided a pants folding means for folding both side portions of the underpants type disposable diaper between the abdominal side portion and the back side portion, respectively. Establishment And a first transport belt, the surface of which is hung between the first roll and the second roll, the surface of which is made to adhere to the ventral side or the back side of the pants-type disposable diaper, The third roll provided in front of the first conveyor belt and the second roll
A second transport belt hung between the rolls, and the second transport means includes a fourth roll and a fourth roll which are arranged to face each other at a predetermined distance from the first roll. The surface of the pants-type disposable diaper, which is hung between the fifth rolls provided obliquely above or below the rolls and runs obliquely above or below, is attached to the abdomen or back of the pants-type disposable diaper. A third conveyor belt adapted to arrive,
A sixth roll, which is provided in front of the third conveyor belt, is placed between the sixth roll and the fifth roll, which face each other at a predetermined distance from the third roll, and is slanted downward or diagonally upward. A folding device for a pants-type disposable diaper, which comprises a fourth conveyor belt that travels in the direction of. 2. The folding device for a pants-type disposable diaper according to claim 1, wherein both side portions of the pants-type disposable diaper are folded between the ventral side portion and the dorsal side portion, respectively. In a method for folding a pants-type disposable diaper that folds a portion and the back side so as to overlap each other, the pants-type disposable diaper is inserted between the first roll and the fourth roll, which are inlets, and the first The pants-type disposable diaper is gradually conveyed by the conveyor belt and the third conveyor belt to convey the pants-type disposable diaper, and both of the pants-type disposable diaper are conveyed by the pants-folding means during the conveyance. After the side portions are folded between the abdominal side portion and the back side portion, respectively, the pants-type disposable diaper is attached to the second conveyor belt. It is configured such that the ventral side portion and the back side portion are folded so as to be overlapped with each other by the fourth transport belt, and the sheet is discharged from the outlet between the third roll and the sixth roll. How to fold a pants-type disposable diaper.