WO2017098613A1 - Method for producing connected packaged products - Google Patents

Method for producing connected packaged products Download PDF

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Publication number
WO2017098613A1
WO2017098613A1 PCT/JP2015/084568 JP2015084568W WO2017098613A1 WO 2017098613 A1 WO2017098613 A1 WO 2017098613A1 JP 2015084568 W JP2015084568 W JP 2015084568W WO 2017098613 A1 WO2017098613 A1 WO 2017098613A1
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WO
WIPO (PCT)
Prior art keywords
continuous sheet
absorbent article
air vent
cylindrical continuous
vent hole
Prior art date
Application number
PCT/JP2015/084568
Other languages
French (fr)
Japanese (ja)
Inventor
辰男 高橋
誠司 村上
裕志 西野
Original Assignee
ユニ・チャーム株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ユニ・チャーム株式会社 filed Critical ユニ・チャーム株式会社
Priority to JP2016521803A priority Critical patent/JP6022122B1/en
Priority to PCT/JP2015/084568 priority patent/WO2017098613A1/en
Publication of WO2017098613A1 publication Critical patent/WO2017098613A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers

Definitions

  • the present invention relates to a method for manufacturing a linked packaged product.
  • a linked package product is known in which a plurality of packaged articles each having an absorbent article packaged are connected in one direction.
  • the linked packaged product is displayed at, for example, a store, and a desired number of packages are purchased from the linked packaged product and sold to the purchaser.
  • Such a linked packaged product includes, for example, a step of sequentially supplying a plurality of absorbent articles onto a continuous sheet conveyed in the conveying direction, and a cylinder in which the continuous sheet is formed into a cylindrical shape and a plurality of absorbent articles are included.
  • a step of sequentially supplying a plurality of absorbent articles onto a continuous sheet conveyed in the conveying direction and a cylinder in which the continuous sheet is formed into a cylindrical shape and a plurality of absorbent articles are included.
  • the step of joining the absorbent articles adjacent to each other in the cylindrical continuous sheet in the transverse direction and the step of cutting the center of the joint portion.
  • transverse transverse joining portions are formed before and after the absorbent article in the cylindrical continuous sheet to form individual packages.
  • the volume is reduced at the place where the lateral joint portion is formed. That is, when a packaged product is formed, excess air that cannot be stored in the packaging bag is generated.
  • the excess air can be discharged to some extent from the gap between the continuous sheets.
  • excess air may not be sufficiently discharged, and excess air remaining in the packaging bag may cause the packaging bag to swell too much or its internal pressure may become too high. There is. In this case, for example, problems such as incomplete joining of the lateral joint portion or tearing of the lateral joint portion once formed occur.
  • the packaging bag swells too much, excess space is generated around the absorbent article, making it easier for the absorbent article to move back and forth and left and right within the cylindrical continuous sheet, and even in the manufactured linked packaging product.
  • the article becomes easy to move in the packaging bag.
  • a packaging box such as a cardboard box
  • the absorbent article is greatly displaced in the packaging bag, and it is difficult to arrange the packaged product in the packaging box. Therefore, when the packaging box is shaken during transportation, the arrangement of the packaged product is easily disturbed in the packaging box, so that a part of the packaged product is deformed or crushed and the absorbent body of the absorbent article becomes Deformation may occur, such as a decrease in absorption capacity.
  • Patent Documents 1 to 4 disclose techniques of packaging and manufacturing methods for packaging bodies.
  • the inventors of the present invention should form a laterally joined portion of a cylindrical continuous sheet as a method of properly discharging excess air when forming a laterally joined portion (end seal). A method of providing an air hole for exhausting air in the vicinity of the location was considered.
  • Patent Documents 1 and 2 there is a technology in which a packaging body in which a perforation is formed in the vicinity of the end seal is placed in a vacuum apparatus, and the packaging body is vacuum-treated by removing air from the perforation by vacuum exhaust. It is disclosed.
  • the perforations formed in the package are for extracting air from the package when performing vacuum processing, and the purpose and timing of extracting the air are the same as those of the present invention. Is totally different.
  • the point seal is formed before the end seal and the perforation are formed, the volume of the cylindrical continuous sheet is reduced at the place where the point seal is formed, and excess air is generated, resulting in a packaging body. May swell excessively, resulting in problems such as incomplete point seals.
  • Patent Document 3 when forming an end seal at two locations on a cylindrical film to form a package, the interior is intermittent in the transverse direction so that air can easily escape, that is, skipping.
  • a technique is disclosed in which an end seal is provided and both ends are folded while the air is removed.
  • the technique of the above-mentioned Patent Document 3 is greatly different from the present invention in the structure of the target packaging body such that there are many end seal gaps, and both ends are folded while removing air.
  • Patent Document 4 discloses a package body composed of an air-permeable interior material and an air-impermeable exterior material, and the air in the interior material permeates the interior material and allows the interior material and the exterior material to pass through. A technique for reaching the gap and exhausting to the outside through the gap provided in the exterior material is disclosed. However, the technique of the above-mentioned patent document 4 is for extracting the air and vapor
  • An object of the present invention is to provide a technique capable of appropriately discharging excess air in a packaging bag when forming a lateral joint in the manufacture of a linked packaged product.
  • the manufacturing method of the linked packaged product of the present invention is as follows. (1) In a state where a plurality of absorbent articles arranged in the transport direction are included in a cylindrical continuous sheet transported in the transport direction, the transport is performed before and after each absorbent article in the cylindrical continuous sheet. Connected packaging in which a plurality of packages including the absorbent article and a packaging bag for packaging the absorbent article are connected in one direction by joining transversely intersecting directions to form a transverse joint portion A method of manufacturing a product, wherein the cylindrical continuous sheet includes the plurality of absorbent articles, and corresponds to an upstream end of the absorbent article in the conveyance direction of the cylindrical continuous sheet.
  • the tubular continuous sheet provided with an air vent hole in at least one of the place and the place where the transverse joint portion downstream of the absorbent article is formed in the tubular continuous sheet.
  • An upper side surface and a lower side surface in the up and down direction intersecting the transport direction and the transverse direction in a portion between the absorbent articles adjacent to each other in the supplied supply step and the supplied cylindrical continuous sheet And a horizontal joint portion forming step of forming the horizontal joint portion extending in the transverse direction.
  • the supplied cylindrical continuous sheet is formed with air vent holes in the vicinity of the portion where the lateral joint (end seal) is to be formed.
  • excess air that cannot be accommodated in the packaging bag can be discharged from the air vent hole.
  • the packaging bag is excessively inflated, the lateral joint is incompletely joined, or the lateral joint once formed is torn. No fear.
  • air vent holes are provided to facilitate the discharge of air that cannot be accommodated in the packaging bag when forming the lateral joint, the packaging bag will not expand too much, so there is almost no excess space around the absorbent article. No longer occurs.
  • the absorbent article since the inner surface of the packaging bag and the absorbent article are in close contact with each other and the absorbent article is less likely to move back and forth and left and right within the packaging bag, the absorbent article also moves within the packaging bag in the manufactured linked packaging product. It becomes difficult. Accordingly, when the linked packaged product is packed in a packaging box such as a cardboard box, there is almost no displacement of the absorbent article in the packaging bag, and the packaged product can be easily aligned and arranged in the packaging box.
  • the arrangement of the packaged item is less likely to be disturbed in the packaging box, so that part of the packaged product may be deformed or crushed and the absorbent body of the absorbent article Can be prevented from being deformed and lowering the absorption power.
  • the supplying step includes an air vent hole forming step of forming the air vent hole in the cylindrical continuous sheet, and the air vent hole forming step is executed together with the lateral joint forming step.
  • the tube is formed after the air vent hole is formed.
  • a slight positional shift in the transport direction may occur while the continuous sheet is transported, and the positional relationship between the air vent hole and the lateral joint may be disturbed and deviate from the desired positional relationship. In that case, for example, the air hole and the lateral joint portion overlap each other, and a state in which the air hole is not substantially formed occurs.
  • the formation of the air vent hole is executed together with the formation of the lateral joint portion, the positional relationship between the air vent hole and the lateral joint portion is maintained, and the air vent hole and the lateral joint portion are maintained. It is possible to prevent the positional relationship from being disturbed. That is, it is possible to easily align the air vent hole and the lateral joint portion on the cylindrical continuous sheet being conveyed.
  • the cut or thin part for opening is easily broken. Therefore, when forming a packaged product by forming a laterally joined portion (end seal) before and after the absorbent article by sandwiching a cylindrical continuous sheet in the vertical direction and joining it in the transverse direction, it can fit in the packaging bag. There is no possibility that the excess air escapes and the cut portion or thin portion is broken.
  • an air vent hole is formed on the upper or lower side surface in the vertical direction of the cylindrical continuous sheet, and air is easily moved in the vertical direction when the cylindrical continuous sheet is sandwiched in the vertical direction. The excess air can be easily discharged from the air vent hole before the cut portion or the thin portion is broken.
  • each air vent hole 70 Since a plurality of air vent holes are formed, the size of each air vent hole 70 is reduced to prevent intrusion of foreign matter from the outside, and the inside of the cylindrical continuous sheet is formed when forming a laterally joined portion. It is possible to discharge a large amount of air more reliably.
  • the plurality of air vent holes are formed along the transverse direction adjacent to the lateral joint portion, a large amount of air in the cylindrical continuous sheet can be discharged early when the lateral joint portion is formed. .
  • the air in the package flows in the transport direction over the entire transverse direction, so one end along the transverse direction. Since the air vent hole is formed from the part to the other end, the air in the package can be more surely released from the air vent hole. Accordingly, when the lateral joint portion is formed, it is possible to more reliably prevent a situation in which there is no escape space for air in the packaging bag, the packaging bag is excessively expanded, the packaging bag is excessively expanded, and the lateral joint portion is broken.
  • the method further includes a packaging step of forming the cylindrical continuous sheet including the plurality of absorbent articles, and in the packaging step, a lower conveyance belt that conveys the plurality of absorbent articles in the conveyance direction.
  • a continuous sheet is supplied from a lower side than the lower transport belt, and while transporting the continuous sheet in the transport direction, The side edges of the continuous sheet in the transverse direction are lifted by a bending member into a cylindrical shape, continuously joined in the conveying direction, and the upper side surface in the vertical direction of the cylindrical continuous sheet is (1) thru
  • the escape space for excess air that cannot fit in the packaging bag There is a risk that the packaging bag will swell too much and the vertical joint once formed will be broken.
  • the air vent hole is formed in the same side surface as the side surface provided with the vertical joint portion, that is, in the vicinity of the vertical joint portion, the air in the packaging bag can be released from the air vent hole. As a result, there is no possibility that the air in the packaging bag escapes when forming the lateral joint portion, the packaging bag is excessively inflated, and the vertical joint portion or the like is broken.
  • the vertical joint Since the plurality of air vent holes are formed on the vertical joint and in the vicinity thereof, the vertical joint can be more reliably prevented from being broken.
  • the air vent holes are formed on both side surfaces of the cylindrical continuous sheet, it is possible to prevent the lateral joint portion and the like from being broken more reliably.
  • the transverse component of the plurality of separation holes in the cylindrical continuous sheet further includes a separation hole forming step of forming a plurality of separation holes along the transverse direction in the lateral joint portion.
  • the plurality of separation holes and the air vent holes are formed such that the sum of the plurality of cut holes and the air vent holes is larger than the sum of the transverse length components of the air vent holes.
  • the cylindrical continuous sheet breaks into an upstream portion and a downstream portion in the transport direction at the location of the air vent hole during the transport of the cylindrical continuous sheet.
  • the plurality of separation holes and the air vent holes are so arranged that the sum of the transverse length components of the plurality of separation holes in the cylindrical continuous sheet is larger than the sum of the transverse length components of the air vent holes. Is formed.
  • the air vent holes are formed more roughly in the transverse direction than the plurality of cut holes.
  • the air vent hole is formed so as to be broken at the plurality of separation holes and not to be broken at the air vent hole. Therefore, there is no possibility that the cylindrical continuous sheet in which the lateral joint portion is formed is cut during conveyance.
  • the method further includes a cutting step of cutting a predetermined number of packaged product assemblies, each of which is formed by separating the cylindrical continuous sheet by the lateral joint portion and connected with a plurality of packaged products.
  • the packaged article assembly is sucked and fixed by a transport suction belt disposed on the surface side having the air vent hole on at least one of the upstream side and the downstream side of the cutter that cuts the packaged article assembly.
  • the method for manufacturing a linked packaged product according to any one of (1) to (10), wherein the linked package product is cut every predetermined number.
  • Air in the packaged product is sucked from the air vent hole with a suction belt for transportation arranged on the side having the air vent hole, so that excessive air remaining in the packaged product can be extracted and laterally joined afterwards. There is no possibility that the joining of the portion or the like will be incomplete, or the lateral joint once formed will be broken.
  • connection packaging product which concerns on embodiment. It is a schematic whole figure of the manufacturing apparatus of the connection packaging product which concerns on embodiment. It is a figure which shows an example of the control unit which concerns on embodiment. It is a figure which shows an example of the control unit which concerns on embodiment. It is a figure which shows an example of the horizontal sealer which concerns on embodiment. It is a figure which shows an example of the pattern of the top part of the press member which concerns on embodiment. It is a schematic diagram which shows the detail of an example of the pattern of the top part which concerns on embodiment. It is a figure explaining the manufacturing method of the connection packaging product which concerns on embodiment. It is a figure explaining the manufacturing method of the connection packaging product which concerns on embodiment. It is a figure explaining the manufacturing method of the connection packaging product which concerns on embodiment. It is a figure explaining the manufacturing method of the connection packaging product which concerns on embodiment. It is a figure explaining the manufacturing method of the connection packaging product which concerns on embodiment. It is a figure explaining the manufacturing method of the connection packaging product which concerns on embodiment.
  • FIGS. 1 (A), 1 (B), and 1 (C) show a bottom view, a top view, and a side view of the linked packaged product 1, respectively.
  • a linked packaged product 1 is composed of a plurality of packaged products 2, and these packaged products 2 are coupled to each other in one direction. Yes.
  • the plurality of packaged products 2 are two or more packaged products 2, which are ten packaged products 2 in the present embodiment.
  • the packaged product 2 includes an absorbent article 3 and a packaging bag 4 for packaging the absorbent article 3, and a vertical seal portion (longitudinal joint portion) extending in the longitudinal direction of the packaged product 2 along the longitudinal direction of the connected packaged product 1. ) 6 and lateral seal portions (lateral joint portions) 5 extending in the lateral direction at both ends in the longitudinal direction.
  • the packaged products 2 are connected to each other via first weakening lines (separation holes) 7 provided in the lateral seal portion 5. By separating the linked packaged product 1 along the first weakening line 7, individual packaged products 2 are obtained.
  • the first weakening line 7 has a structure like a perforation in which a plurality of detaching holes are arranged in a line in a broken line shape, and each detaching hole is recessed or recessed in the sheet of the packaging bag 4. In other words, it is formed as a cut portion or a thin portion.
  • the package 2 has an air vent hole 70.
  • the air vent hole 70 is provided in at least one of the inner sides of the lateral seal portions 5 at both ends of the packaged product 2.
  • the air vent hole 70 is between the portion corresponding to one end portion of the absorbent article 3 in the packaging bag 4 and the lateral seal portion 5 facing one end portion of the absorbent article 3 in the packaging bag 4 ( (1st area
  • a plurality of air vent holes 70 are arranged in a row so as to extend along the lateral seal portion 5 of the package 2 in each of the first region and the second region.
  • Each air vent hole 70 is formed as a portion where the sheet of the packaging bag 4 penetrates, that is, as a cut portion.
  • the air vent hole 70 is formed to be rougher in the lateral direction of the packaged product 2 (the direction parallel to the lateral seal portion 5) than the plurality of separation holes of the first weakening line 7.
  • the plurality of separation holes and the plurality of air vent holes 70 are formed such that the sum of the length components in the lateral direction of the plurality of cut holes is larger than the sum of the length components in the lateral direction of the plurality of air vent holes 70. It is preferred that Thereby, when the packaged product 2 is pulled in the longitudinal direction of the linked packaged product 1 (longitudinal direction of the packaged product 2), the packaged product 2 is more reliably bounded by the plurality of separation holes of the first weakening line 7. It can be separated and the packaged product 2 itself can be prevented from breaking at the plurality of air vent holes 70 as boundaries.
  • the package 2 has a second weakening line 8 extending along the vertical seal portion 6 between the horizontal seal portions 5 at both ends.
  • the package 2 is opened by cutting the side surface of the package 2 along the second weakening line 8.
  • the second weakening line 8 has a structure such as a perforation in which a plurality of opening holes are arranged in a line in a broken line, and each opening hole is recessed or recessed in the sheet of the packaging bag 4. In other words, it is formed as a cut portion or a thin portion.
  • the absorbent article 3 is composed of an absorbent article such as a disposable diaper or a sanitary napkin, and is a pants-type diaper in the present embodiment. Therefore, the absorbent article 3 has elasticity, that is, a property of trying to restore its original shape against deformation.
  • the packaging bag 4 is composed of a sheet material suitable for packaging an absorbent article such as a polyethylene (PE) film or a polypropylene (PP) film.
  • FIG. 2 shows an example of the configuration of the manufacturing apparatus 10 for the linked packaged product 1.
  • the linked packaged product manufacturing apparatus 10 includes an absorbent article manufacturing apparatus 20, a folding unit 10A, a regulation unit 10B, a packaging unit 10C, a joining unit 10D, and a cutting unit 10E. Yes.
  • the absorbent article manufacturing apparatus 20 and the units 10A to 10E are arranged in-line.
  • the connected packaged product manufacturing apparatus 10 is related to the conveyance of the absorbent article 3 and the like in the conveyance direction (MD direction), the transverse direction orthogonal to the conveyance direction (CD direction) and the conveyance direction and the transverse direction. It shall have the up-and-down direction (TD direction) which intersects perpendicularly.
  • MD direction conveyance direction
  • CD direction conveyance direction
  • TD direction up-and-down direction
  • upstream in the transport direction and downstream in the transport direction are also simply referred to as “upstream” and “downstream”
  • upward in the vertical direction” and “lower in the vertical direction” are simply “upper”.
  • the absorbent article 3 shall have a longitudinal direction (L), the width direction (W) orthogonal to a longitudinal direction, and the thickness direction (H) orthogonal to a longitudinal direction and a width direction. And while the absorbent article 3 is being transported, the transport direction, the transverse direction, and the vertical direction overlap the longitudinal direction, the width direction, and the thickness direction. The transport direction, the transverse direction, and the vertical direction are also used as the vertical direction.
  • the absorbent article manufacturing apparatus 20 continuously manufactures the absorbent article 3.
  • the manufactured absorbent article 3 is sequentially conveyed to the folding unit 10 ⁇ / b> A by the conveyor belt 21 directly connected to the absorbent article manufacturing apparatus 20.
  • the folding unit 10 ⁇ / b> A rotates the absorbent article 3 once so that the folded part overlaps with the other parts in the vertical direction while sequentially carrying the absorbent article 3 conveyed side by side in the conveyance direction. Fold it up.
  • the absorbent article 3 is folded twice to form a bi-fold absorbent article 3.
  • the bi-fold absorbent article 3 is sequentially transported to the regulation unit 10B by the transport belt 25.
  • the regulation unit 10B regulates the width in the transverse direction of the absorbent article 3 to be equal to or smaller than the first dimension while sequentially conveying the folded absorbent article 3 conveyed side by side in one direction in the conveyance direction. .
  • the regulated absorbent article 3 is sequentially conveyed to the packaging unit 10C.
  • the packaging unit 10 ⁇ / b> C has the second weakening line 8 and sequentially supplies the regulated absorbent articles 3 inside the continuous sheet 4 b that is continuously formed in a cylindrical shape while being transported in the transport direction.
  • the absorbent article 3 is packaged by forming a seal portion 6 (FIG. 1).
  • the dimension of the inner side of the transverse direction in the continuous sheet 4b formed in a cylindrical shape is the first dimension.
  • the cylindrical continuous sheet 4b containing the absorbent article 3 is sequentially conveyed to the joining unit 10D.
  • the joining unit 10D is a portion between the adjacent absorbent articles 3 in the cylindrical continuous sheet 4b while conveying the cylindrical continuous sheet 4b containing the absorbent article 3 in the conveyance direction, and the upper side in the vertical direction.
  • An air vent hole 70 (FIG. 1) is formed, a lateral seal portion 5 (FIG. 1) is formed, and a first weakening line 7 (FIG. 1) is formed.
  • the cutting unit 10E cuts and divides the packaged product assembly 9 by the first weakening line 7 for each preset number of the packaged product assembly 9 formed.
  • the packaged product 2 is divided into ten pieces.
  • a linked packaged product 1 is formed in which a predetermined number of packaged products 2 are linked in one direction.
  • the linked packaged product 1 is packed in a packing box such as a cardboard box.
  • the folding unit 10 ⁇ / b> A includes transport belts 21, 22, and 23.
  • the conveyor belt 21 is disposed facing one belt surface of the conveyor belt 22 stretched in a triangular shape, and the conveyor belt 23 is disposed facing the other belt surface of the conveyor belt 22.
  • the conveyance path formed between the conveyance belt 21 and the conveyance belt 22 can grip the absorbent article 3 that is not folded and can convey the absorbent article 3 in the conveyance direction.
  • the conveyance path formed between the conveyance belt 22 and the conveyance belt 23 can hold the folded absorbent article 3 and convey it in the conveyance direction.
  • the conveyance path on the conveyance belt 22 side intersects the conveyance path on the conveyance belt 21 side at a predetermined angle (example: 90 degrees).
  • the folding unit 10A further includes a folding plate 24 in the vicinity of the intersection.
  • the folding plate 24 crosses the conveyance path on the conveyance belt 21 side at the predetermined angle and enters and exits the intersection so as to be parallel to the conveyance path on the conveyance belt 23 side. Therefore, the absorbency conveyed by the conveyance path by the side of the conveyance belt 21 is match
  • the article 3 is folded by the folding plate 24 into the conveyance path on the side of the conveyance belt 23, thereby enabling the absorbent article 3 to be folded.
  • the regulation unit 10 ⁇ / b> B includes a lower conveyance belt 31 and an upper conveyance belt 32.
  • FIG. 3 shows a side view and a top view of the regulating unit 10B.
  • the lower conveyance belt 31 and the upper conveyance belt 32 are arranged to face each other, and the absorbent article 3 folded between the lower conveyance belt 31 and the upper conveyance belt 32 is conveyed in the conveyance direction.
  • a transport path (space 33s) for transporting to the center is formed.
  • the lower conveyor belt 31 and the upper conveyor belt 32 are disposed so that the center positions in the transverse direction overlap each other, and the width of the lower conveyor belt 31 is formed larger than the width of the upper conveyor belt 32.
  • the regulating unit 10B further includes a pair of regulating members 33 facing each other on both sides in the transverse direction of the space 33s in which the absorbent article 3 is conveyed.
  • 4A and 4B show views of the regulating member 33 as viewed from the upstream side and the downstream side in the transport direction, respectively.
  • the pair of regulating members 33 are guide plates formed of a flat plate member such as metal or resin, and are erected substantially vertically from the conveyance surface of the lower conveyance belt 31 in the vertical direction.
  • a region surrounded by the pair of regulating members 33 and the conveyance rolls 31a and 32a is an entrance of the conveyance path (space 33s) of the absorbent article 3, and a region surrounded by the pair of regulating members 33 and the conveyance rolls 31b and 32b. It becomes an exit of the conveyance path (space 33s) of the absorbent article 3.
  • the distance between the pair of regulating members 33 in the transverse direction that is, the inner transverse distance is determined from the upstream end 33a (FIG. 4A) to the downstream end 33b (FIG. 4B). ) Is getting shorter as you head to. That is, the inner transverse distance is ds1 at the upstream end portion 33a, but is de1 ( ⁇ ds1) at the downstream end portion 33b.
  • the inner transverse distance ds1 at the upstream end 33a is set to a value that is slightly larger than the transverse width of the absorbent article 3 before the regulation step.
  • the inner transverse distance de1 at the downstream end portion 33b is set to be equal to or smaller than a first dimension D01 described later. Therefore, by passing the absorbent article 3 between the pair of regulating members 33, the position of the absorbent article 3 can be corrected and the width of the absorbent article 3 in the transverse direction can be regulated to the first dimension D01 or less.
  • the vertical distance between the lower conveyance belt 31 and the upper conveyance belt 32 is determined from the upstream end 33a (FIG. 4A) to the downstream end 33b (FIG. 4). (B) is getting shorter. That is, the inner vertical distance is ds2 at the upstream end 33a, but de2 ( ⁇ ds2) at the downstream end 33b.
  • the inner vertical distance ds2 at the upstream end portion 33a is set to a value larger than the vertical thickness of the absorbent article 3 before the regulation step.
  • the inner vertical distance de2 at the downstream end 33b is set to a second dimension D02 or less, which will be described later. Therefore, by passing the absorbent article 3 between the lower conveyance belt 31 and the upper conveyance belt 32, the thickness of the absorbent article 3 in the vertical direction can be regulated to the second dimension D02 or less.
  • the packaging unit 10 ⁇ / b> C includes a weakening line former 41 including a pair of upper and lower rolls 46 and 47.
  • the pair of rolls 46 and 47 rotate around the rotation axis along the transverse direction, and the continuous sheet 4a is drawn, held and sent between them.
  • the roll 46 is a weak line blade roll having a weak line forming blade having a shape corresponding to the second weak line 8 on the outer peripheral surface along the conveying direction.
  • the perforated line has a perforated blade. It is a blade roll.
  • the roll 47 is an anvil roll that receives the weakening wire blade by a smooth outer peripheral surface.
  • the packaging unit 10 ⁇ / b> C further includes a bending member 43 disposed adjacent to the downstream side of the lower conveyance belt 31.
  • the bending member 43 is continuously supplied from the lower side of the lower conveyance belt 31 and the bending member 43 from the lower side of the continuous sheet 4a fed from the weak line forming device 41 and conveyed by the conveying roller 42.
  • the bending member 43 lifts both side edges in the transverse direction of the continuous sheet 4a into a cylindrical shape, and overlaps both side edges to form an overlapping portion. be able to.
  • the cylindrical continuous sheet 4 b is formed in the bending member 43.
  • the upstream inlet of the bending member 43 and the outlet (FIG. 4B) of the conveyance path (space 33s) of the absorbent article 3 face each other.
  • the cylindrical continuous sheet 4b is formed in a cylindrical shape along the inner wall of the bending member 43, the inner dimension in the transverse direction is the first dimension D01, and the inner dimension in the vertical direction is the second dimension. D02.
  • the first dimension D01 is equal to or greater than the transverse width of the restricted absorbent article 3
  • the second dimension D02 is equal to or greater than the thickness of the restricted absorbent article 3 in the vertical direction. Therefore, the regulated absorbent article 3 can be inserted into the inside 4bs of the cylindrical continuous sheet 4b.
  • the edge parts on both sides in the transverse direction of the cylindrical continuous sheet 4b are in contact with each other to form an overlapping portion, they are not joined at this stage.
  • the absorbent article 3 from the regulation unit 10B is supplied to the bending member 43 at the upstream end thereof.
  • the continuous sheet 4a is formed in a cylindrical shape, and the cylindrical continuous sheet 4b is formed. Therefore, it can be said that the absorbent article 3 is supplied into the continuous sheet 4b formed continuously in a cylindrical shape by the bending member 43.
  • the packaging unit 10 ⁇ / b> C further includes a vertical sealer 44 and a conveyance belt 45.
  • the vertical sealer 44 and the conveyor belt 45 are arranged so as to face each other.
  • the conveyor belt 45 conveys the cylindrical continuous sheet 4b containing the absorbent article 3 in the conveyance direction, and the vertical sealer 44 has a cylindrical continuous shape.
  • the overlapping portion formed on the upper side of the sheet 4b is sealed to form the vertical seal portion 6 (FIG. 1). Examples of the sealing method include heat fusion by heating.
  • the joining unit 10D includes a pair of conveyor belts 51 and 52 and a lateral sealer 53.
  • the pair of conveying belts 51 and 52 are arranged to face each other, and hold the cylindrical continuous sheet 4b containing the absorbent article 3 between the conveying belts 51 and 52, up to the lateral sealer 53 in the conveying direction.
  • FIG. 5 shows a side view of the horizontal sealer 53, which includes a pair of upper and lower rolls 54 and 55.
  • the pair of rolls 54 and 55 rotate around the rotation axis along the transverse direction, and the cylindrical continuous sheet 4b is drawn between, gripped and sent out between them.
  • the roll 54 has a plurality of pressing members 54a on the outer peripheral surface, and has four pressing members 54a in the present embodiment.
  • the plurality of pressing members 54 a are arranged at equal intervals with respect to the circumferential direction of the outer peripheral surface of the roll 54.
  • the roll 55 has a plurality of pressing members 55a on the outer peripheral surface, and has four pressing members 55a in the present embodiment.
  • the plurality of pressing members 55 a are arranged at equal intervals in the circumferential direction of the outer peripheral surface of the roll 55.
  • the pressing member 54a protrudes outward from the outer peripheral surface of the roll 54 and extends in the transverse direction.
  • a pattern for forming the lateral seal portion 5, the first weakening line 7, and the air vent hole 70 is formed on the top 54 s of the pressing member 54 a.
  • the pressing member 55a protrudes outward from the outer peripheral surface of the roll 55 and extends along the transverse direction.
  • a pattern for forming the lateral seal portion 5, the first weakening line 7, and the air vent hole 70 is formed on the top portion 55 s of the pressing member 55 a.
  • one of the top 54s pattern and the top 55s pattern is a convex pattern, and the other is a smooth pattern that receives the convex pattern.
  • the pattern of the top 54s is a convex pattern
  • the pattern of the top 55s is a smooth pattern that receives the convex pattern.
  • FIG. 6 is a top view showing an example of the pattern of the top 54s of the pressing member 54a.
  • a pattern 73 for forming the first weakening line 7, a pattern 72 for forming the lateral seal portion 5, and a pattern 71 for forming the air vent hole 70 are formed on the top 54 s.
  • the pattern 73 is a pattern that is provided so as to extend in the transverse direction at the center in the transport direction of the top portion 54s, and that substantially rectangular convex portions having a longitudinal direction in the transverse direction are arranged in a row in the transverse direction.
  • the pattern 72 is a pattern that is provided on both sides of the pattern 73 in the transport direction so as to extend in the transverse direction, and in which substantially square convex portions are arranged in a matrix in the transverse direction and the transport direction.
  • the pattern 71 is a pattern that is provided so as to extend in the transverse direction on the opposite side of the pattern 73 of the pattern 72, and in which substantially square convex portions are arranged in a row in the transverse direction.
  • FIG. 7 is a schematic diagram showing details of an example of the pattern of the top 54s.
  • the convex portion 73u of the pattern 73 is a rectangle having a length Lm3 in the transport direction ⁇ a length Lc3 in the transverse direction.
  • the first weakening line 7 cannot be cut during normal conveyance, but from the viewpoint of enabling cutting in the cutting step, Lm3 is preferably in the range of 0.1 to 1.0 mm, and Lc3 is in the range of 0.2 to 8. A range of 0 mm is preferred.
  • the pitch in the transverse direction (not shown) between the convex portions 73u of the pattern 73 is preferably in the range of 0.4 to 12.0 mm.
  • the distance K2 in the transport direction between the pattern 73 and the pattern 72 is preferably in the range of 1.0 to 6.0 mm.
  • the convex portion 72u of the pattern 72 is a rectangle having a length Lm2 in the transport direction ⁇ a length Lc2 in the transverse direction.
  • both Lm2 and Lc2 are preferably in the range of 0.2 to 2.0 mm.
  • the pitch Pm2 in the transport direction and the pitch Pc2 in the transverse direction between the convex portions 72u of the pattern 72 are preferably in the range of 0.4 to 4.0 mm.
  • the distance K1 in the transport direction between the pattern 72 and the pattern 71 is preferably in the range of 1.0 to 6.0 mm.
  • the convex portion 71u of the pattern 71 is a rectangle having a length Lm1 in the transport direction ⁇ a length Lc1 in the transverse direction.
  • both Lm1 and Lc1 are preferably in the range of 0.1 to 2.0 mm.
  • the transverse pitch Pc1 between the convex portions 71u of the pattern 71 is preferably in the range of 0.4 to 4.0 mm.
  • the patterns 71, 72, and 73 are rectangles such as rectangles and squares.
  • the present invention is not limited to this example, and may be other polygons, circles, ellipses, or the like. There may be.
  • the pattern 73 and the pattern 71 are formed such that the sum of the length components in the transverse direction of the pattern 73 is larger than the sum of the length components in the transverse direction of the pattern 71. That is, it is preferable that the pattern 71 is formed to be rougher in the transverse direction than the pattern 73. As a result, the air vent hole 70 can be formed rougher in the transverse direction than the first weakening line 7. Therefore, when the packaged product 2 is pulled in the longitudinal direction of the connected packaged product 1, the first weakening line 7 is more reliably produced. The packaged product 2 can be cut off at the boundary, and the packaged product 2 itself can be prevented from breaking at the air vent hole 70 as the boundary.
  • the pair of rolls 54 and 55 rotate in synchronization with each other so that one pressing member 54a and one pressing member 55a are arranged facing each other.
  • the pair of pressing members 54a and 55a that face each other is a portion between the absorbent articles 3 adjacent to each other in the cylindrical continuous sheet 4b, and the upper side surface 4b1 and the lower side surface 4b2 in the vertical direction. Is inserted. At that time, the pair of pressing members 54a and 55a are in contact with the upper side surface 4b1 and the lower side surface 4b2 in the order of the pattern 71, the pattern 72, the pattern 73, the pattern 72, and the pattern 71.
  • the cylindrical continuous sheet 4b is punched out with the pattern 71 at the location where the pair of pressing members 54a and 55a are sandwiched to form the air vent hole 70 (FIG. 1), and the heated pattern 72 is heat-sealed.
  • the seal portion 5 (FIG. 1) is formed, the cylindrical continuous sheet 4b is punched out with the pattern 73 to form the first weakening line 7 (FIG. 1), and the horizontal seal portion is formed by heat-sealing the heated pattern 72.
  • 5 (FIG. 1) is formed, and the cylindrical continuous sheet 4b is punched out with a pattern 71 to form an air vent hole 70 (FIG. 1).
  • the packaged article assembly 9 is formed.
  • a plurality of air vent holes 70 are formed from one end to the other end along the transverse direction adjacent to the lateral seal portion 5. Will be. Moreover, the air vent hole 70 is formed in both the upper side surface 4b1 and the lower side surface 4b2 of the cylindrical continuous sheet 4b.
  • the cutting unit 10E includes a pair of conveying belts 61 and 62 and a cutter 63.
  • the pair of conveyor belts 61 and 62 are arranged to face each other, and convey the packaged article coupling body 9 between the conveyor belts 61 and 62 and convey it to the cutter 63 in the conveyance direction.
  • the cutting device 63 includes a pair of rollers 64 and 65 arranged to face each other.
  • the pair of rollers 64 and 65 conveys the packaged article coupling body 9 between the rollers 64 and 65.
  • the conveyance speed of the packaged article coupling body 9 by the rollers 64 and 65 is made faster than the conveyance speed of the packaged article coupling body 9 by the conveyor belts 61 and 62.
  • the packaged article assembly 9 is cut.
  • the linked packaged product 1 in which a predetermined number of packaged products 2 are linked is formed.
  • the cutting unit 10E further includes a pair of transport belts 66 and 67, and the pair of transport belts 66 and 67 are arranged so as to face each other, and the connected package product 1 is held between the transport belts 66 and 67 while being held.
  • the connected packaged product 1 is transported to a packing device (not shown) for packing the.
  • the transport belt (in the present embodiment, the transport belt 61 is disposed on the side of the surface having the air vent hole 70 in the packaged article assembly 9).
  • the transport belt (the transport belt 66 in the present embodiment) disposed on the side of the connected packaged product 1 having the air vent hole 70.
  • the transport belt (the transport belt 66 in the present embodiment) disposed on the side of the connected packaged product 1 having the air vent hole 70.
  • the air in the packaged product 2 can be sucked from the air vent hole 70 by the suction belt for conveyance disposed on the side having the air vent hole 70. Thereby, even if excessive air remains in the packaged product 2 at this stage, the remaining air can be removed, and there is no possibility that the joining of the lateral seal portion 5 and the like will be incomplete or torn. .
  • a manufacturing process, a folding process, a regulation process, a packaging process, a joining process, and a cutting process are executed.
  • the absorbent article 3 is conveyed as indicated by a black arrow, and these steps are sequentially executed by the absorbent article manufacturing apparatus 20 and the units 10A to 10E, respectively.
  • 8 to 10 are diagrams for explaining a method of manufacturing a linked packaged product. 8 to 9 schematically show the top surfaces of absorbent articles and the like in each manufacturing process (the upper side of the drawing is the upstream side in the transport direction, the lower side is the downstream side), and FIG. 10 is the bonding process. A cross section of an absorbent article or the like is schematically shown (the right side of the drawing is the upstream side in the transport direction, and the left side is the downstream side).
  • the absorbent article 3 is continuously manufactured by the absorbent article manufacturing apparatus 20.
  • the absorbent article 3 is a pants-type diaper as shown to FIG. 8 (A), and is provided with the waist part 3a which covers a wearer's waist part, and the crotch part 3b containing an absorber.
  • the end of the abdomen portion 3b1 is coupled to the abdomen side surface 3a1 of the waistline portion 3a
  • the end portion of the back side portion 3b2 is coupled to the back side surface 3a2 of the waistline portion 3a.
  • the manufactured absorbent article 3 is sequentially transported to the folding unit 10A by the transport belt 21 directly connected to the absorbent article manufacturing apparatus 20.
  • the diaper of the absorbent article 3 is conveyed so that the crotch portion 3b is located on the downstream side.
  • the number of hits is the same. Since the processing amount of the conveyor belt 21 is the same as the processing amount of each unit 10A to 10E, it can be said that the absorbent article manufacturing apparatus 20 and each unit 10A to 10E are continuously manufactured and packaged. .
  • the manufactured absorbent article 3 is folded by the folding unit 10A. That is, in the folding unit 10A, the absorbent article 3 is continuously conveyed while being sandwiched between the conveyor belts 21 and 22, and the central portion of the absorbent article 3 in the conveyance direction has come to a position between the conveyance rolls 22a and 23a. At the timing, the central portion of the absorbent article 3 is projected by the folded plate 24 in the thickness direction. Thereby, the absorbent article 3 is pushed in between the transport rolls 22a and 23a while being folded in two, and is sandwiched between the pair of transport belts 22 and 23. The absorbent article 3 folded in two is sequentially transported to the regulation unit 10B by the pair of transport belts 22, 23 and the transport belt 25.
  • the diaper of the absorbent article 3 shown in FIG. 8 (A) is folded as shown in FIG. 8 (B) when the folding plate 24 contacts the crease FL.
  • the crease FL is formed so as to pass through the vicinity of the end portion on the downstream side in the transport direction of the waistline portion 3a.
  • the absorbent article 3 is conveyed so that the crease FL is positioned on the downstream side of the absorbent article 3.
  • the width of the absorbent article 3 in the transverse direction is W1, which is substantially the same as before the folding step.
  • the thickness of the absorbent article 3 in the vertical direction is H1, which is increased by folding.
  • the size of the folded absorbent article 3 is regulated by the regulation unit 10B. That is, in the regulation unit 10 ⁇ / b> B, the absorbent article 3 that has been transported by the transport belt 25 is transported by the lower transport belt 31 in the transport direction. At this time, in the pair of regulating members 33, the inner transverse distance ds1 of the upstream end portion 33a (FIG. 4A) is set longer than the transverse width W1 of the absorbent article 3 before the regulating step. Therefore, the absorbent article 3 is easily inserted into the space 33s in the transverse direction.
  • the width of the absorbent article 3 in the transverse direction is regulated by the regulating member 33 and becomes smaller.
  • the width in the transverse direction of the absorbent article 3 is the same as the inner transverse distance de1 of the downstream end portion 33b of the regulating member 33 at the downstream end portion 33b of the regulating member 33 (FIG. 4B). And is carried out of the regulating member 33.
  • the absorbent article 3 is passed between the pair of regulating members 33, so that the transverse width becomes W2 ⁇ del as shown in FIG. It becomes smaller than the width W1. Thereby, a repulsive force that spreads in the transverse direction is generated in the absorbent article 3.
  • the absorbent article 3 is crossed by passing the absorbent article 3 between the pair of regulating members 33.
  • the width in the direction can be easily regulated to the first dimension D01 or less.
  • the inner vertical distance ds2 of the upstream end (FIG. 4A) is the vertical direction of the absorbent article 3 before the regulation process. Since it is set to be longer than the thickness H1, the absorbent article 3 can be easily inserted into the space 33s in the vertical direction.
  • the thickness of the absorbent article 3 in the vertical direction is restricted by the lower transport belt 31 and the upper transport belt 32 and becomes smaller. As a result, the thickness of the absorbent article 3 in the vertical direction at the end portion 33b on the downstream side (FIG.
  • the absorbent article 3 is passed between the lower conveyance belt 31 and the upper conveyance belt 32, so that the vertical thickness becomes H2 ⁇ de2, and the vertical thickness before the regulation step. It becomes smaller than H1. Thereby, a repulsive force is generated in the absorbent article 3 to spread in the vertical direction.
  • the absorbent article 3 is passed between the lower conveyance belt 31 and the upper conveyance belt 32.
  • the thickness of the absorbent article 3 can be easily regulated to the second dimension D02 or less.
  • the absorbent article 3 whose size is regulated is packaged by a cylindrical continuous sheet by the packaging unit 10C. That is, the continuous sheet 4a having the first weakening line 8 in the transport direction is supplied to the folding member 43 from the lower side of the lower transport belt 31 and is transported in the transport direction, while being folded in the transverse direction by the folding member 43. The edges are lifted and their side edges are overlapped. As a result, a cylindrical continuous sheet 4b having an overlapping portion extending in the transport direction is formed, the inner dimension in the transverse direction is the first dimension D01, and the inner dimension in the vertical direction is the second dimension D02. .
  • the absorbent article 3 conveyed from the regulation unit 10B is regulated by the regulation unit 10B so that the width is W2 ⁇ de1 ⁇ D01 and the thickness is H2 ⁇ de2 ⁇ D02. Therefore, the regulated absorbent article 3 is easily inserted into the continuous sheet 4 b that is being formed into a cylindrical shape within the bending member 43. As a result, a cylindrical continuous sheet 4b including the absorbent article 3 is formed.
  • the cylindrical continuous sheet 4b containing the absorbent article 3 is conveyed in the conveyance direction by the conveyance belt 45, and the above-described overlapping portion on the cylindrical continuous sheet 4b is sealed by the vertical sealer 44, and the vertical seal portion 6 (FIG. 1) is formed.
  • the cylindrical continuous sheet 4b is held in a shape in which the inner dimension in the transverse direction is approximately the first dimension D01, and the inner dimension in the vertical direction is approximately the second dimension D02.
  • the diaper of the absorbent article 3 has a repulsive force that spreads in the transverse direction or the up-down direction, so that the cylindrical continuous sheet 4b is pushed and expanded from the inside as shown in FIG. It is stretched.
  • the absorbent article 3 since the absorbent article 3 is pressed from the periphery by the cylindrical continuous sheet 4b, the absorbent article 3 can be positioned at a predetermined position in the cylindrical continuous sheet 4b. That is, the absorbent article can be fixed at a predetermined position in the cylindrical continuous sheet.
  • the front and back of the absorbent article in the cylindrical continuous sheet containing the absorbent article 3 are joined to form the packaged article assembly 9. That is, the cylindrical continuous sheet 4b including the absorbent article 3 is further conveyed to the horizontal sealer 53 in the conveyance direction while being held between the pair of conveyance belts 51 and 52. A portion between the absorbent articles 3 adjacent to each other in the cylindrical continuous sheet 4 b is pressed and sandwiched between the pressing members 54 a and 55 a of the pair of rolls 54 and 55 of the horizontal sealer 53. As a result, as shown in FIG.
  • the air vent hole 70 is formed by the pattern 71 in order from the downstream side in the conveying direction at the sandwiched portion (air vent hole forming step), and the horizontal seal portion 5 is formed by the pattern 72.
  • the first weakening line 7 is formed by the pattern 73 (separation hole forming process)
  • the horizontal seal portion 5 is formed by the pattern 72 (lateral joint forming process)
  • the pattern 71 is formed.
  • the air vent hole 70 is formed (air vent hole forming step).
  • the packaged article coupling body 9 is formed.
  • the diaper of the absorbent article 3 is stretched so that each packaged product 2 of the packaged product coupling body 9 is expanded from the inside.
  • the formation of the air vent hole 70 air vent hole forming process
  • the formation of the lateral seal portion 5 lateral joint forming process
  • the formation of the first weakening line 7 separation hole forming process
  • the volume of the portion of the cylindrical continuous sheet 4b decreases.
  • the air 80 of the said part ie, the air 80 of the downstream of the absorbent article 3 in FIG. 10 (A) becomes surplus. Therefore, it is necessary to discharge the excess air 80.
  • One place where the excess air 80 is discharged is upstream of the absorbent article 3, but it is difficult for the absorbent article 3 to discharge all the excess air 80 because it is blocked by the absorbent article 3.
  • the cylindrical continuous sheet 4b is provided between the lateral seal portion 5 on the downstream side in the conveying direction and the downstream end portion of the absorbent article 3. Since the air hole 70 is formed at the location, the excess air 80 can be discharged from the air hole 70. Thereby, it can prevent that the cylindrical continuous sheet 4b swells too much, and joining of the horizontal seal
  • the cylindrical continuous sheet 4b Since the volume decreases, the air 80 in that portion, that is, the air 80 upstream of the absorbent article 3 in FIG. 10B becomes redundant. Therefore, the cylindrical continuous sheet 4b may swell too much, and the joining of the lateral seal portion 5 may be incomplete or torn.
  • the cylindrical continuous sheet 4b has a space between the upstream side seal portion 5 and the upstream end of the absorbent article 3 in the conveying direction.
  • the air hole 70 is formed at the location, the excess air 80 can be discharged from the air hole 70. Thereby, it can prevent that the packaging bag 4 formed from the cylindrical continuous sheet 4b expands too much, and joining of the horizontal seal
  • the number of the air vent holes 70 may be one or a plurality as in the present embodiment, depending on the relationship between the amount of air to be discharged and the size of the air vent holes 70. In the case of a plurality, the size of the air vent hole 70 per piece can be reduced, the entry of foreign matter from the outside can be prevented more reliably, and excessive air can be discharged more reliably during the lateral joint forming process. This is preferable.
  • the step (air vent hole forming step) before the horizontal joint forming step is referred to as a supplying step of supplying the cylindrical continuous sea 4b provided with the predetermined air vent hole 70 to the horizontal joint forming step.
  • the predetermined air vent hole 70 is located on the upstream side of the absorbent article 3 in the cylindrical continuous sheet 4b and at a location corresponding to the upstream end of the absorbent article 3 in the transport direction of the cylindrical continuous sheet 4b.
  • the formation of the air vent hole 70 and the formation of the lateral seal portion 5 are performed at positions separated from each other in the transport direction, after the air vent hole 70 is formed, the cylindrical continuous sheet 4b is being transported. As a result, a slight positional shift occurs in the conveying direction, and the positional relationship between the air vent hole 70 and the lateral seal portion 5 is disturbed. For example, the air vent hole 70 and the lateral seal portion 5 overlap each other. A non-formed state may occur. Therefore, in this case, it takes time and effort to adjust the positional deviation in the transport direction so that the state does not occur.
  • the positional relationship between the air vent hole 70 and the lateral seal portion 5 can be easily maintained by a desired positional relationship. That is, it is not necessary to align the air vent hole 70 and the lateral seal portion 5 on the cylindrical continuous sheet 4b being conveyed.
  • the air vent hole 70 is preferably formed on the upper side surface 4b1 or the lower side surface 4b2 in the vertical direction of the cylindrical continuous sheet 4b.
  • air easily moves in the vertical direction due to the reaction, so that excess air is removed before the second weakening line 8 breaks. It can be easily discharged from the air vent hole.
  • it is formed on the same side surface as the second weakening line 8 of the cylindrical continuous sheet 4b as in the present embodiment, that is, on both sides in the transverse direction of the second weakening line 8 on the upper side surface 4b1 in the vertical direction. It is preferable. Thereby, before the 2nd weakening line 8 breaks, the excess air in the packaging bag 4 can be escaped from the air vent hole 70 in a large amount and at an early stage.
  • the air vent hole 70 is preferably formed in the transverse direction adjacent to the lateral seal portion 5 on the upper side surface 4b1 in the vertical direction of the cylindrical continuous sheet 4b as in the present embodiment. Thereby, when forming the horizontal seal
  • the air vent hole 70 may be formed on the lower side surface 4b2 in the vertical direction of the cylindrical continuous sheet 4b as long as a plurality of air vent holes 70 are formed adjacent to the horizontal seal portion 5 along the transverse direction. .
  • the air vent hole 70 may be formed from one end to the other end along the transverse direction on the upper side surface 4b1 in the vertical direction of the cylindrical continuous sheet 4b as in the present embodiment. preferable.
  • the reason is as follows. That is, when forming the package 2 by forming the lateral seal portions 5 before and after the absorbent article 3, the air in the packaging bag 4 flows in the transport direction over the entire transverse direction. Therefore, a plurality of air vent holes 70 are formed on the upper side surface 4b1 in the vertical direction of the cylindrical continuous sheet 4b from one end to the other end along the transverse direction, that is, across the entire transverse direction. By doing so, the air in the packaging bag 4 can be escaped from the air vent hole 70 efficiently and reliably. If a plurality of air vent holes 70 are formed from one end to the other end along the transverse direction, the air vent hole 70 is formed on the lower side surface 4b2 in the vertical direction of the cylindrical continuous sheet 4b. Also good.
  • the air vent hole 70 is preferably formed on the same surface as the vertical seal portion 6 of the cylindrical continuous sheet 4b as in the present embodiment, that is, the upper side surface 4b1 in the vertical direction.
  • the reason is as follows. That is, since the joining of the vertical seal portion 6 is easy to break immediately after joining, when the package 2 is formed by forming the transverse seal portion 5 before and after the absorbent article 3, the excess air in the packaging bag 4 There is a risk that the evacuation site will disappear and the packaging bag 4 will swell too much, and the vertical seal portion 6 once formed may be broken.
  • the packaging bag can be broken without breaking the vertical seal portion 6. 4 can escape from the air vent hole 70.
  • the air vent hole 70 is formed so as to intersect the vertical seal portion 6 as in the present embodiment. Thereby, the air vent hole 70 is formed on the vertical seal portion 6 and in the vicinity thereof, and the vertical seal portion 6 can be prevented from being broken more reliably.
  • the air vent hole 70 is formed on both the upper side surface 4b1 and the lower side surface 4b2 in the vertical direction of the cylindrical continuous sheet 4b. Thereby, more air can escape from the air vent holes 70 on both side surfaces of the cylindrical continuous sheet 4b.
  • the absorbent article 3 is positioned even if a part of the air in the cylindrical continuous sheet 4b flows upstream with the formation of the lateral seal portion 5, The position of the absorbent article 3 in the upstream cylindrical continuous sheet 4b becomes difficult to shift. Thereby, the situation that the absorbent article 3 in the cylindrical continuous sheet 4b will be pinched
  • the packaged product assembly 9 is cut and divided into a predetermined number of the packaged products 2 to form the linked packaged product 1. That is, the packaged article assembly 9 is conveyed in the conveying direction while being held between the pair of conveying belts 61 and 62, and is conveyed while being held between the pair of rollers 64 and 65.
  • the rollers 64 and 65 convey the packaged article coupling body 9 at substantially the same speed as the conveyor belts 61 and 62.
  • the rollers 64 and 65 convey the packaged article coupling body 9 at a higher speed than the conveyor belts 61 and 62.
  • the upstream portion of the packaged article coupling body 9 is gripped by the conveyor belts 61 and 62, and the packaged article coupling body 9 is cut along the first weakening line 7. In this way, a linked packaged product 1 in which a predetermined number of packaged products 2 are linked is formed.
  • the linked packaged product 1 is conveyed in the conveying direction while being gripped between the pair of conveying belts 66 and 67, and is conveyed to a packing device for packing the linked packaged product 1.
  • the linked packaged product 1 is manufactured.
  • an air vent hole 70 is formed in the transported cylindrical continuous sheet 4b near the portion where the lateral seal portion 5 is to be formed. Therefore, when forming the package 2 by forming the lateral seal portions 5 before and after the absorbent article 3 of the cylindrical continuous sheet 4b, excess air 80 that cannot be stored in the packaging bag 4 is discharged from the air vent hole 70. can do. As a result, there is no risk of air escaping in the packaging bag 4, and the packaging bag 4 swells too much, resulting in incomplete or broken joining of the horizontal seal portion 5 and the vertical seal portion 7.
  • the air vent hole 70 is formed corresponding to each of the lateral seal portions 5 at both ends of the packaged product 2 as in the present embodiment, it is preferable from the viewpoint of exhausting excess air reliably. Is not limited to this. That is, as long as excess air can be reliably exhausted depending on the size, position, shape, and the like of the air vent hole 70, it may be formed corresponding to only one of the lateral seal portions 5 at both ends of the package 2. In that case, since the holes formed in the packaged product 2 are reduced, the strength of the packaging bag 4 can be relatively increased.
  • the absorbent article 3 in the packaging process, can be positioned at a predetermined position in the cylindrical continuous sheet 4b. That is, the absorbent article 3 can be fixed at a predetermined position in the cylindrical continuous sheet 4b.
  • the air bag 70 is provided with the air vent hole 70 and the excess air 80 is discharged from the packaging bag 4, so that the packaging bag 4 does not swell excessively, and thus the absorbent article 3. There will be no extra space around. Thereby, the state which the packing bag 4 inner surface and the absorbent article 3 contacted closely, ie, the state by which it was positioned, can be maintained.
  • the absorbent article 3 is difficult to move in the packaging bag 4, and thus the absorbent article 3 is difficult to move in the packaging bag 5 even in the manufactured linked packaged product 1. Accordingly, when the linked packaged product 1 is packed in a packaging box such as a cardboard box, the absorbent article 3 is hardly displaced in the packaging bag 4, so that the packaged product 2 is easily aligned in the packaging box. be able to. Therefore, even if the packaging box is shaken by transportation or the like, the arrangement of the packaged product 2 is not easily disturbed in the packaging box, so that a part of the packaged product 2 is deformed or crushed and the absorbent article 3 It can be prevented that the absorbent body is deformed and the absorption power is reduced.
  • the thickness of the absorbent article 3 in the vertical direction is regulated by the upper conveying belt 32 (or a guide plate is acceptable), but the present embodiment is not limited to this example.
  • the vertical thickness of the absorbent article 3 and its variation are small and the vertical regulation is not necessary, the vertical thickness of the absorbent article 3 may not be regulated. In that case, the upper conveyance belt 32 can be omitted.
  • the absorbent article 3 is folded only once, but the present embodiment is not limited to this example, and may not be folded, or may be folded two or more times. In the case of folding twice or more, it is preferable to transport the absorbent article 3 so that the uppermost fold line is positioned on the downstream side of the absorbent article 3. Thereby, it is possible to suppress the portion of the absorbent article 3 ahead of the fold from being swung up by the upper conveyance belt 32.

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Abstract

This method for producing connected packaged products is configured so that transverse joint parts are formed on a continuous tubular sheet (4b) containing a plurality of absorbent articles (3) therein by bonding portions of the continuous tubular sheet in front of and behind each absorbent article in a transverse direction while conveying the continuous tubular sheet in a conveyance direction, and thus a connected packaged product (1) is produced in which a plurality of packaged products (2) comprising a packaging bag containing the absorbent article therein are connected in one direction. The production method comprises the steps of: supplying a continuous tubular sheet containing a plurality of absorbent articles therein and having breathing holes between a portion of the continuous tubular sheet which corresponds to an end of each absorbent article in the conveyance direction and a portion of the continuous tubular sheet in which a transverse joint part opposed to the end is to be formed; and forming transverse joint parts extending in the transverse direction of the delivered continuous tubular sheet. The method for producing connected packaged products allows excess air in the packaging bags to be properly released during the formation of the transverse joint parts.

Description

連結包装製品の製造方法Method for manufacturing consolidated packaged products
　本発明は連結包装製品の製造方法に関する。 The present invention relates to a method for manufacturing a linked packaged product.
　使い捨ておむつや生理用ナプキンのような吸収性物品の製品形態の一つとして、吸収性物品が個別に包装された包装品を複数個一方向に連結してなる連結包装製品が知られている。その連結包装製品は例えば店頭に陳列され、購入者が希望する個数の包装品がその連結包装製品から切り離されて購入者へ販売される。 As one of the product forms of absorbent articles such as disposable diapers and sanitary napkins, a linked package product is known in which a plurality of packaged articles each having an absorbent article packaged are connected in one direction. The linked packaged product is displayed at, for example, a store, and a desired number of packages are purchased from the linked packaged product and sold to the purchaser.
　このような連結包装製品は、例えば、搬送方向に搬送される連続シート上に複数の吸収性物品を順次供給する工程と、その連続シートを筒状にして複数の吸収性物品が内包された筒状の連続シートを形成する工程と、その筒状の連続シートにおける互いに隣り合う吸収性物品同士の間を横断方向に挟んで接合する工程と、接合部分の中央を切断する工程とにより製造される。 Such a linked packaged product includes, for example, a step of sequentially supplying a plurality of absorbent articles onto a continuous sheet conveyed in the conveying direction, and a cylinder in which the continuous sheet is formed into a cylindrical shape and a plurality of absorbent articles are included. Of the cylindrical continuous sheet, the step of joining the absorbent articles adjacent to each other in the cylindrical continuous sheet in the transverse direction, and the step of cutting the center of the joint portion. .
　上記の接合する工程では、筒状の連続シートにおける吸収性物品の前後に横断方向の横接合部（エンドシール）が形成されて個々の包装品が形成される。このとき、筒状の連続シートでは、横接合部が形成される箇所で容積が減少する。すなわち、包装品が形成されるときに、その包装袋内に収まりきれない余剰の空気が生じることになる。横接合部の形成の直前、すなわち包装袋の形成の直前に、連続シートの隙間からある程度その余剰の空気は排出され得る。しかし、横接合部の形成方法によっては、余剰の空気が十分に排出されず、包装袋内に残留した余剰の空気により、包装袋が膨らみ過ぎたり、その内圧が高くなり過ぎたりしてしまうおそれがある。そうなると、例えば横接合部の接合が不完全になったり、一度形成された横接合部が破れたりするなどの不具合が生じてしまう。 In the above-mentioned joining step, transverse transverse joining portions (end seals) are formed before and after the absorbent article in the cylindrical continuous sheet to form individual packages. At this time, in the cylindrical continuous sheet, the volume is reduced at the place where the lateral joint portion is formed. That is, when a packaged product is formed, excess air that cannot be stored in the packaging bag is generated. Immediately before the formation of the lateral joining portion, that is, immediately before the formation of the packaging bag, the excess air can be discharged to some extent from the gap between the continuous sheets. However, depending on the method of forming the lateral joint, excess air may not be sufficiently discharged, and excess air remaining in the packaging bag may cause the packaging bag to swell too much or its internal pressure may become too high. There is. In this case, for example, problems such as incomplete joining of the lateral joint portion or tearing of the lateral joint portion once formed occur.
　また、包装袋が膨らみ過ぎると、吸収性物品の周囲に余剰空間が発生するため、吸収性物品が筒状の連続シート内を前後左右に動き易くなり、製造された連結包装製品においても吸収性物品が包装袋内で動き易くなる。それにより、連結包装製品をダンボール箱のような梱包箱に詰め込むとき、包装袋内で吸収性物品のずれが大きくなり、包装品を梱包箱内に整列させて配置することが困難になる。それゆえ、輸送などで梱包箱が揺さぶられると、梱包箱内で包装品の配置が乱され易くなるので、包装品の一部が変形したり押し潰されたりして吸収性物品の吸収体が変形して吸収力が低下するなどの不具合が生じてしまう。 Also, if the packaging bag swells too much, excess space is generated around the absorbent article, making it easier for the absorbent article to move back and forth and left and right within the cylindrical continuous sheet, and even in the manufactured linked packaging product. The article becomes easy to move in the packaging bag. As a result, when the linked packaged product is packed in a packaging box such as a cardboard box, the absorbent article is greatly displaced in the packaging bag, and it is difficult to arrange the packaged product in the packaging box. Therefore, when the packaging box is shaken during transportation, the arrangement of the packaged product is easily disturbed in the packaging box, so that a part of the packaged product is deformed or crushed and the absorbent body of the absorbent article becomes Deformation may occur, such as a decrease in absorption capacity.
　連結包装製品の製造において、横接合部（エンドシール）の形成に際して、包装袋内で余剰となる空気を適切に排出することが可能な技術が望まれる。 In the production of linked packaged products, a technique capable of appropriately discharging excess air in the packaging bag is desired when forming the lateral joint (end seal).
　特許文献１～４には、包装体の包装方法や製造方法の技術が開示されている。 Patent Documents 1 to 4 disclose techniques of packaging and manufacturing methods for packaging bodies.
特開２０００－６２７２１号公報JP 2000-62721 A 特開２０００－１０９０１９号公報JP 2000-109019 A 特開２００４－２３８０６５号公報Japanese Patent Laid-Open No. 2004-238065 特開２００８－１７４２７９号公報JP 2008-174279 A
　連結包装製品の製造において、横接合部（エンドシール）の形成に際して余剰となった空気を適切に排出する方法として、本発明の発明者は、筒状の連続シートの横接合部を形成すべき箇所の近傍に、空気を排出するための空気抜け穴を設ける方法を考えた。 In the production of linked packaging products, the inventors of the present invention should form a laterally joined portion of a cylindrical continuous sheet as a method of properly discharging excess air when forming a laterally joined portion (end seal). A method of providing an air hole for exhausting air in the vicinity of the location was considered.
　特許文献１～２には、エンドシールの近傍にミシン目が形成された包装体を真空装置内に載置し、真空排気によりそのミシン目から空気を抜くことにより包装体を真空処理する技術が開示されている。このような特許文献１、２の技術では、包装体に形成されるミシン目は真空処理を実行するときに包装体内の空気を抜くためのものであり、空気を抜く目的やタイミングが本発明とは全く相違している。加えて、エンドシール及びミシン目を形成する前に点シールを形成しているため、筒状の連続シートでは点シールが形成される箇所で容積が減少し、余剰の空気が生じて、包装体が過剰に膨らんで、点シールが不完全になる等の問題が生じるおそれがある。 In Patent Documents 1 and 2, there is a technology in which a packaging body in which a perforation is formed in the vicinity of the end seal is placed in a vacuum apparatus, and the packaging body is vacuum-treated by removing air from the perforation by vacuum exhaust. It is disclosed. In the techniques of Patent Documents 1 and 2, the perforations formed in the package are for extracting air from the package when performing vacuum processing, and the purpose and timing of extracting the air are the same as those of the present invention. Is totally different. In addition, since the point seal is formed before the end seal and the perforation are formed, the volume of the cylindrical continuous sheet is reduced at the place where the point seal is formed, and excess air is generated, resulting in a packaging body. May swell excessively, resulting in problems such as incomplete point seals.
　また、特許文献３には、筒状のフィルムの２か所にエンドシールを形成して包装体を形成するとき、内部を空気が容易に抜け得るように横断方向に断続して、すなわち飛び飛びにエンドシールを設け、空気を抜きながら両端を折り畳む技術が開示されている。しかしながら、上述の特許文献３の技術は、エンドシールの隙間が多いことや、空気を抜きながら両端を折り畳むなど対象とする包装体の構造が本発明と大きく相違している。 Further, in Patent Document 3, when forming an end seal at two locations on a cylindrical film to form a package, the interior is intermittent in the transverse direction so that air can easily escape, that is, skipping. A technique is disclosed in which an end seal is provided and both ends are folded while the air is removed. However, the technique of the above-mentioned Patent Document 3 is greatly different from the present invention in the structure of the target packaging body such that there are many end seal gaps, and both ends are folded while removing air.
　更に、特許文献４には、空気透過性の内装材と空気非透過性の外装材とから成る包装体であって、内装材内の空気は内装材を透過して内装材と外装材との隙間に達し、外装材に設けられた隙間から外部へ排気される技術が開示されている。しかしながら、上述の特許文献４の技術は、包装体形成後に隙間から外部へ包装体内の空気や蒸気を抜くためのものであり、空気を抜く目的やタイミングが本発明とは全く相違している。 Further, Patent Document 4 discloses a package body composed of an air-permeable interior material and an air-impermeable exterior material, and the air in the interior material permeates the interior material and allows the interior material and the exterior material to pass through. A technique for reaching the gap and exhausting to the outside through the gap provided in the exterior material is disclosed. However, the technique of the above-mentioned patent document 4 is for extracting the air and vapor | steam in a package body outside from a clearance gap after package formation, and the objective and timing which extract air are completely different from this invention.
　本発明の目的は、連結包装製品の製造において、横接合部の形成に際して、包装袋内で余剰となった空気を適切に排出することが可能な技術を提供することにある。 An object of the present invention is to provide a technique capable of appropriately discharging excess air in a packaging bag when forming a lateral joint in the manufacture of a linked packaged product.
　本発明の連結包装製品の製造方法は次のとおりである。（１）搬送方向に搬送される筒状の連続シートに、前記搬送方向に並んだ複数の吸収性物品を内包した状態で、前記筒状の連続シートにおける各吸収性物品の前後をそれぞれ前記搬送方向に交差する横断方向に接合して横接合部を形成することにより、前記吸収性物品と前記吸収性物品を包装する包装袋とを含む包装品が複数個一方向に連結されてなる連結包装製品を製造する方法であって、前記複数の吸収性物品を内包した前記筒状の連続シートであって、前記筒状の連続シートにおける吸収性物品の前記搬送方向の上流側の端部に対応する箇所と前記筒状の連続シートにおける該吸収性物品よりも上流側の前記横接合部が形成される箇所との間、及び、前記筒状の連続シートにおける該吸収性物品の前記搬送方向の下流側の端部に対応する箇所と前記筒状の連続シートにおける該吸収性物品よりも下流側の前記横接合部が形成される箇所との間、のうちの少なくとも一方に空気抜き穴が設けられた前記筒状の連続シートを供給する供給工程と、供給された前記筒状の連続シートにおける互いに隣り合う吸収性物品同士の間の部分で、前記搬送方向及び前記横断方向に交差する上下方向の上側の側面と下側の側面とを挟んで接合して、前記横断方向に延在する前記横接合部を形成する横接合部形成工程と、を備える、連結包装製品の製造方法。 The manufacturing method of the linked packaged product of the present invention is as follows. (1) In a state where a plurality of absorbent articles arranged in the transport direction are included in a cylindrical continuous sheet transported in the transport direction, the transport is performed before and after each absorbent article in the cylindrical continuous sheet. Connected packaging in which a plurality of packages including the absorbent article and a packaging bag for packaging the absorbent article are connected in one direction by joining transversely intersecting directions to form a transverse joint portion A method of manufacturing a product, wherein the cylindrical continuous sheet includes the plurality of absorbent articles, and corresponds to an upstream end of the absorbent article in the conveyance direction of the cylindrical continuous sheet. Between the portion to be formed and the portion where the lateral joint portion upstream of the absorbent article in the cylindrical continuous sheet is formed, and in the conveyance direction of the absorbent article in the cylindrical continuous sheet Corresponding to the downstream end The tubular continuous sheet provided with an air vent hole in at least one of the place and the place where the transverse joint portion downstream of the absorbent article is formed in the tubular continuous sheet. An upper side surface and a lower side surface in the up and down direction intersecting the transport direction and the transverse direction in a portion between the absorbent articles adjacent to each other in the supplied supply step and the supplied cylindrical continuous sheet And a horizontal joint portion forming step of forming the horizontal joint portion extending in the transverse direction.
　本発明では、供給された筒状の連続シートには横接合部（エンドシール）が形成されるべき箇所の近くに空気抜き穴が形成されているので、筒状の連続シートの吸収性物品の前後に横接合部を形成して包装品を形成するとき、包装袋内に収まりきれない余剰の空気を空気抜き穴から排出することができる。それにより、横接合部を形成するときに包装袋内で空気の逃げ場が無くなり包装袋が膨らみ過ぎて、横接合部の接合が不完全になったり、一度形成された横接合部が破れたりするおそれがなくなる。
　また、空気抜き穴を設けて、横接合部を形成するときに包装袋内に収まりきれない空気を排出し易くすると、包装袋が膨らみ過ぎることがなくなるので、吸収性物品の周囲に余剰空間がほとんど発生しなくなる。すなわち、包装袋内面と吸収性物品とが密に接触して、吸収性物品が包装袋内を前後左右に動き難くなるので、製造された連結包装製品においても吸収性物品が包装袋内で動き難くなる。それにより、連結包装製品をダンボール箱のような梱包箱に詰め込むとき、包装袋内で吸収性物品のずれがほとんどないため、包装品を梱包箱内に容易に整列させて配置することができる。それゆえ、輸送などで梱包箱が揺さぶられても、梱包箱内で包装品の配置が乱され難くなるので、包装品の一部が変形したり押し潰されたりして吸収性物品の吸収体が変形して吸収力が低下する、ということを防止できる。 In the present invention, the supplied cylindrical continuous sheet is formed with air vent holes in the vicinity of the portion where the lateral joint (end seal) is to be formed. When forming a laterally joined portion to form a packaged product, excess air that cannot be accommodated in the packaging bag can be discharged from the air vent hole. As a result, there is no air escape space in the packaging bag when the lateral joint is formed, the packaging bag is excessively inflated, the lateral joint is incompletely joined, or the lateral joint once formed is torn. No fear.
In addition, when air vent holes are provided to facilitate the discharge of air that cannot be accommodated in the packaging bag when forming the lateral joint, the packaging bag will not expand too much, so there is almost no excess space around the absorbent article. No longer occurs. That is, since the inner surface of the packaging bag and the absorbent article are in close contact with each other and the absorbent article is less likely to move back and forth and left and right within the packaging bag, the absorbent article also moves within the packaging bag in the manufactured linked packaging product. It becomes difficult. Accordingly, when the linked packaged product is packed in a packaging box such as a cardboard box, there is almost no displacement of the absorbent article in the packaging bag, and the packaged product can be easily aligned and arranged in the packaging box. Therefore, even if the packaging box is shaken during transportation, etc., the arrangement of the packaged item is less likely to be disturbed in the packaging box, so that part of the packaged product may be deformed or crushed and the absorbent body of the absorbent article Can be prevented from being deformed and lowering the absorption power.
　（２）前記供給工程は、前記筒状の連続シートに前記空気抜き穴を形成する空気抜き穴形成工程を含み、前記空気抜き穴形成工程は前記横接合部形成工程と共に実行される、前記（１）に記載の連結包装製品の製造方法。 (2) The supplying step includes an air vent hole forming step of forming the air vent hole in the cylindrical continuous sheet, and the air vent hole forming step is executed together with the lateral joint forming step. The manufacturing method of the connection packaging product of description.
　空気抜き穴の形成が横接合部の形成と共に実行されない場合、すなわち空気抜き穴の形成と横接合部の形成とが搬送方向に互いに離れた位置で実行される場合、空気抜き穴が形成された後、筒状の連続シートが搬送される間に搬送方向の微妙な位置ずれが生じて、空気抜き穴と横接合部との位置関係が乱れて所望の位置関係から外れることが起こり得る。そうなると、例えば空気抜け穴と横接合部とが重なってしまい、空気抜け穴が実質的に形成されない状態が発生する。しかし、本発明では、空気抜き穴の形成は横接合部の形成と共に実行されるので、空気抜き穴と横接合部との位置関係は所望の位置関係が維持されて、空気抜け穴と横接合部とが重なってしまうような位置関係の乱れが生じることを防止できる。すなわち、搬送中の筒状の連続シート上において空気抜き穴と横接合部との位置合わせを容易に行うことができる。 When the formation of the air vent hole is not performed together with the formation of the lateral joint portion, that is, when the formation of the air vent hole and the formation of the lateral joint portion are performed at positions separated from each other in the transport direction, the tube is formed after the air vent hole is formed. A slight positional shift in the transport direction may occur while the continuous sheet is transported, and the positional relationship between the air vent hole and the lateral joint may be disturbed and deviate from the desired positional relationship. In that case, for example, the air hole and the lateral joint portion overlap each other, and a state in which the air hole is not substantially formed occurs. However, in the present invention, since the formation of the air vent hole is executed together with the formation of the lateral joint portion, the positional relationship between the air vent hole and the lateral joint portion is maintained, and the air vent hole and the lateral joint portion are maintained. It is possible to prevent the positional relationship from being disturbed. That is, it is possible to easily align the air vent hole and the lateral joint portion on the cylindrical continuous sheet being conveyed.
　（３）前記筒状の連続シートの前記上下方向の上側又は下側の側面に、前記搬送方向に沿って延びる開封用の切断部又は薄肉部が設けられており、前記空気抜き穴は、前記筒状の連続シートの前記上下方向の上側又は下側の側面に形成されている、前記（１）又は（２）に記載の連結包装製品の製造方法。 (3) On the upper or lower side surface in the up-down direction of the cylindrical continuous sheet, an opening cutting portion or a thin-wall portion extending along the transport direction is provided, and the air vent hole is formed of the cylinder The manufacturing method of the connected packaging product as described in said (1) or (2) currently formed in the said upper or lower side surface of the up-down direction of a continuous sheet.
　開封用の切断部又は薄肉部は破断し易い。そのため、筒状の連続シートを上下方向に挟んで横断方向に接合することにより横接合部（エンドシール）を吸収性物品の前後に形成して包装品を形成するとき、包装袋内に収まりきれない余剰の空気の逃げ場が無くなり切断部又は薄肉部を破断させてしまうおそれがある。しかし、本発明では筒状の連続シートの上下方向の上側又は下側の側面に空気抜き穴が形成されており、筒状の連続シートを上下方向に挟むときに空気は上下方向に移動し易いので、切断部又は薄肉部が破断する前に余剰の空気を空気抜き穴から容易に排出することができる。 The cut or thin part for opening is easily broken. Therefore, when forming a packaged product by forming a laterally joined portion (end seal) before and after the absorbent article by sandwiching a cylindrical continuous sheet in the vertical direction and joining it in the transverse direction, it can fit in the packaging bag. There is no possibility that the excess air escapes and the cut portion or thin portion is broken. However, in the present invention, an air vent hole is formed on the upper or lower side surface in the vertical direction of the cylindrical continuous sheet, and air is easily moved in the vertical direction when the cylindrical continuous sheet is sandwiched in the vertical direction. The excess air can be easily discharged from the air vent hole before the cut portion or the thin portion is broken.
　（４）前記空気抜き穴は、前記筒状の連続シートにおける前記上下方向の上側又は下側の側面に複数形成されている、前記（１）乃至（３）のいずれか一項に記載の連結包装製品の製造方法。 (4) The linked packaging according to any one of (1) to (3), wherein a plurality of the air vent holes are formed on an upper side or a lower side surface in the vertical direction of the cylindrical continuous sheet. Product manufacturing method.
　複数の空気抜き穴が形成されているので、１個当たりの空気抜き穴７０の大きさを小さくして外部からの異物の侵入を防止しつつ、横接合部を形成するときに筒状の連続シート内の空気をより確実に多量に排出することができる。 Since a plurality of air vent holes are formed, the size of each air vent hole 70 is reduced to prevent intrusion of foreign matter from the outside, and the inside of the cylindrical continuous sheet is formed when forming a laterally joined portion. It is possible to discharge a large amount of air more reliably.
　（５）前記複数の空気抜き穴は、前記横接合部に隣接して前記横断方向に沿って形成されている、上記（４）に記載の連結包装製品の製造方法。 (5) The method for manufacturing a linked packaged product according to (4), wherein the plurality of air vent holes are formed along the transverse direction adjacent to the lateral joint portion.
　複数の空気抜き穴が横接合部に隣接して前記横断方向に沿って形成されているので、横接合部を形成するときに筒状の連続シート内の空気を多量かつ早期に排出することができる。 Since the plurality of air vent holes are formed along the transverse direction adjacent to the lateral joint portion, a large amount of air in the cylindrical continuous sheet can be discharged early when the lateral joint portion is formed. .
　（６）前記複数の空気抜き穴は、前記横断方向に沿って一方の端部から他方の端部まで複数個形成されている、前記（１）乃至（５）のいずれか一項に記載の連結包装製品の製造方法。 (6) The connection according to any one of (1) to (5), wherein a plurality of the plurality of air vent holes are formed from one end to the other end along the transverse direction. Manufacturing method for packaged products.
　吸収性物品の前後に横接合部（エンドシール）を形成して包装品を形成するとき、包装体内の空気は横断方向の全体に亘って搬送方向に流れるので、横断方向に沿って一方の端部から他方の端部まで空気抜き穴が形成されていることで、包装品内の空気を空気抜き穴からより確実に逃がすことができる。それにより、横接合部を形成するときに包装袋内の空気の逃げ場が無くなり包装袋が膨らみ過ぎて、包装袋が膨らみ過ぎて横接合部等が破れる等の事態をより確実に防止できる。 When forming a package by forming a transverse joint (end seal) before and after the absorbent article, the air in the package flows in the transport direction over the entire transverse direction, so one end along the transverse direction. Since the air vent hole is formed from the part to the other end, the air in the package can be more surely released from the air vent hole. Accordingly, when the lateral joint portion is formed, it is possible to more reliably prevent a situation in which there is no escape space for air in the packaging bag, the packaging bag is excessively expanded, the packaging bag is excessively expanded, and the lateral joint portion is broken.
　（７）前記複数の吸収性物品を内包した前記筒状の連続シートを形成する包装工程を更に備え、前記包装工程において、前記複数の吸収性物品を前記搬送方向に搬送する下側搬送ベルトに対して前記搬送方向の下流側に隣り合うように配設された折り曲げ部材に、前記下側搬送ベルトよりも下方側から連続シートを供給し、前記連続シートを前記搬送方向に搬送しつつ、前記折り曲げ部材により前記連続シートの前記横断方向の両側端縁部を持ち上げて筒状にし、前記搬送方向に連続的に接合して、前記筒状の連続シートにおける前記上下方向の上側の側面に、前記搬送方向に延在する縦接合部を形成し、前記空気抜き穴は、前記筒状の連続シートにおける前記縦接合部が設けられた側面と同じ側面に形成されている、前記（１）乃至（６）のいずれか一項に記載の連結包装製品の製造方法。 (7) The method further includes a packaging step of forming the cylindrical continuous sheet including the plurality of absorbent articles, and in the packaging step, a lower conveyance belt that conveys the plurality of absorbent articles in the conveyance direction. On the other hand, to the bending member disposed adjacent to the downstream side in the transport direction, a continuous sheet is supplied from a lower side than the lower transport belt, and while transporting the continuous sheet in the transport direction, The side edges of the continuous sheet in the transverse direction are lifted by a bending member into a cylindrical shape, continuously joined in the conveying direction, and the upper side surface in the vertical direction of the cylindrical continuous sheet is (1) thru | or (6) which forms the vertical junction part extended in a conveyance direction, and the said air vent hole is formed in the side surface provided with the said vertical junction part in the said cylindrical continuous sheet. Method for producing a linked packaged product according to any one of.
　縦接合部の接合は接合直後では破断し易いため、吸収性物品の前後に横接合部（エンドシール）を形成して包装品を形成するとき、包装袋内に収まりきれない余剰の空気の逃げ場が無くなり包装袋が膨らみ過ぎて、一度形成された縦接合部が破れるおそれがある。しかし、本発明では縦接合部が設けられた側面と同じ側面、すなわち縦接合部の近傍に空気抜き穴が形成されているので、包装袋内の空気を空気抜き穴から逃がすことができる。それにより、横接合部を形成するときに包装袋内の空気の逃げ場が無くなり包装袋が膨らみ過ぎて、縦接合部等が破れるおそれがなくなる。 Since joining at the longitudinal joint is easy to break immediately after joining, when forming a packaged product by forming transverse joints (end seals) before and after the absorbent article, the escape space for excess air that cannot fit in the packaging bag There is a risk that the packaging bag will swell too much and the vertical joint once formed will be broken. However, in the present invention, since the air vent hole is formed in the same side surface as the side surface provided with the vertical joint portion, that is, in the vicinity of the vertical joint portion, the air in the packaging bag can be released from the air vent hole. As a result, there is no possibility that the air in the packaging bag escapes when forming the lateral joint portion, the packaging bag is excessively inflated, and the vertical joint portion or the like is broken.
　（８）前記空気抜き穴は、前記縦接合部と交差するように複数形成されている、前記（７）に記載の連結包装製品の製造方法。 (8) The method for manufacturing a linked packaged product according to (7), wherein a plurality of the air vent holes are formed so as to intersect the longitudinal joint portion.
　複数の空気抜き穴が縦接合部上及びその近傍に形成されているので、より確実に縦接合部が破れることを防止できる。 Since the plurality of air vent holes are formed on the vertical joint and in the vicinity thereof, the vertical joint can be more reliably prevented from being broken.
　（９）前記空気抜き穴は、前記筒状の連続シートにおける前記上下方向の上側の側面及び下側の側面の両方に形成されている、前記（１）乃至）（８）のいずれか一項に記載の連結包装製品の製造方法。 (9) The air vent hole according to any one of (1) to (8), wherein the air vent hole is formed on both the upper side surface and the lower side surface in the vertical direction of the cylindrical continuous sheet. The manufacturing method of the connection packaging product of description.
　空気抜き穴が前記筒状の連続シートの両側面に形成されているので、より確実に横接合部等が破れることを防止できる。 Since the air vent holes are formed on both side surfaces of the cylindrical continuous sheet, it is possible to prevent the lateral joint portion and the like from being broken more reliably.
　（１０）前記横接合部に、前記横断方向に沿って複数の切り離し穴を形成する切り離し穴形成工程を更に備え、前記筒状の連続シートにおける前記複数の切り離し穴の前記横断方向の長さ成分の合計が前記空気抜き穴の前記横断方向の長さ成分の合計よりも大きくなるように前記複数の切り離し穴及び前記空気抜き穴が形成されている、前記（１）乃至（９）のいずれか一項に記載の連結包装製品の製造方法。 (10) The transverse component of the plurality of separation holes in the cylindrical continuous sheet further includes a separation hole forming step of forming a plurality of separation holes along the transverse direction in the lateral joint portion. The plurality of separation holes and the air vent holes are formed such that the sum of the plurality of cut holes and the air vent holes is larger than the sum of the transverse length components of the air vent holes. A method for producing a linked packaged product according to claim 1.
　筒状の連続シートに空気抜き穴を形成すると、筒状の連続シートの搬送途中に、空気抜き穴の箇所を境に筒状の連続シートが搬送方向の上流側の部分と下流側の部分とに破断する可能性が考えられる。しかし、本発明では、筒状の連続シートにおける複数の切り離し穴の横断方向の長さ成分の合計が空気抜き穴の横断方向の長さ成分の合計よりも大きくなるように複数の切り離し穴及び空気抜き穴が形成されている。言い換えると、筒状の連続シートにおいて複数の切り離し穴よりも空気抜き穴の方が横断方向について粗く形成されている。そのため、横接合工程後の筒状の連続シートを搬送方向に強く引っ張ると、複数の切り離し穴で破断し、空気抜き穴で破断しないように空気抜き穴が形成されている。そのため、横接合部を形成された筒状の連続シートが搬送途中で切断するおそれはない。 When an air vent hole is formed in a cylindrical continuous sheet, the cylindrical continuous sheet breaks into an upstream portion and a downstream portion in the transport direction at the location of the air vent hole during the transport of the cylindrical continuous sheet. There is a possibility of doing. However, in the present invention, the plurality of separation holes and the air vent holes are so arranged that the sum of the transverse length components of the plurality of separation holes in the cylindrical continuous sheet is larger than the sum of the transverse length components of the air vent holes. Is formed. In other words, in the cylindrical continuous sheet, the air vent holes are formed more roughly in the transverse direction than the plurality of cut holes. Therefore, when the cylindrical continuous sheet after the transverse joining step is pulled strongly in the conveyance direction, the air vent hole is formed so as to be broken at the plurality of separation holes and not to be broken at the air vent hole. Therefore, there is no possibility that the cylindrical continuous sheet in which the lateral joint portion is formed is cut during conveyance.
　（１１）前記筒状の連続シートが前記横接合部により区切られて形成された、複数の包装品が連結された包装品連結体を、搬送しながら所定数ごとに切断する切断工程を更に備え、前記包装品連結体は、前記包装品連結体を切断する切断器の上流側及び下流側の少なくとも一方の、前記空気抜き穴を有する面の側に配置された搬送用のサクションベルトで吸引され固定されつつ、所定数ごとに切断される、前記（１）乃至（１０）のいずれか一項に記載の連結包装製品の製造方法。 (11) The method further includes a cutting step of cutting a predetermined number of packaged product assemblies, each of which is formed by separating the cylindrical continuous sheet by the lateral joint portion and connected with a plurality of packaged products. The packaged article assembly is sucked and fixed by a transport suction belt disposed on the surface side having the air vent hole on at least one of the upstream side and the downstream side of the cutter that cuts the packaged article assembly. The method for manufacturing a linked packaged product according to any one of (1) to (10), wherein the linked package product is cut every predetermined number.
　空気抜き穴を有する面の側に配置された搬送用のサクションベルトで空気抜き穴から包装品内の空気を吸引するので、包装品内に過剰に残存する空気を抜くことができ、事後的に横接合部等の接合が不完全になったり、一度形成された横接合部等が破れたりするおそれがなくなる。 Air in the packaged product is sucked from the air vent hole with a suction belt for transportation arranged on the side having the air vent hole, so that excessive air remaining in the packaged product can be extracted and laterally joined afterwards. There is no possibility that the joining of the portion or the like will be incomplete, or the lateral joint once formed will be broken.
　本発明により、横接合部の形成に際して、包装袋内で余剰となった空気を適切に逃がすことが可能となる。 According to the present invention, it is possible to appropriately escape excess air in the packaging bag when forming the lateral joint.
実施の形態に係る連結包装製品を示す図である。It is a figure which shows the connection packaging product which concerns on embodiment. 実施の形態に係る連結包装製品の製造装置の概略全体図である。It is a schematic whole figure of the manufacturing apparatus of the connection packaging product which concerns on embodiment. 実施の形態に係る規制ユニットの一例を示す図である。It is a figure which shows an example of the control unit which concerns on embodiment. 実施の形態に係る規制ユニットの一例を示す図である。It is a figure which shows an example of the control unit which concerns on embodiment. 実施の形態に係る横シール器の一例を示す図である。It is a figure which shows an example of the horizontal sealer which concerns on embodiment. 実施の形態に係る押圧部材の頂部のパターンの一例を示す図である。It is a figure which shows an example of the pattern of the top part of the press member which concerns on embodiment. 実施の形態に係る頂部のパターンの一例の詳細を示す模式図である。It is a schematic diagram which shows the detail of an example of the pattern of the top part which concerns on embodiment. 実施の形態に係る連結包装製品の製造方法を説明する図である。It is a figure explaining the manufacturing method of the connection packaging product which concerns on embodiment. 実施の形態に係る連結包装製品の製造方法を説明する図である。It is a figure explaining the manufacturing method of the connection packaging product which concerns on embodiment. 実施の形態に係る連結包装製品の製造方法を説明する図である。It is a figure explaining the manufacturing method of the connection packaging product which concerns on embodiment.
　図１（Ａ）、図１（Ｂ）及び図１（Ｃ）はそれぞれ連結包装製品１の底面図、頂面図及び側面図を示している。図１（Ａ）、図１（Ｂ）及び図１（Ｃ）を参照すると、連結包装製品１は、複数の包装品２から構成され、これら複数の包装品２は一方向に互いに連結されている。複数の包装品２は、２個以上の包装品２であり、本実施の形態では１０個の包装品２である。 1A, FIG. 1B, and FIG. 1C show a bottom view, a top view, and a side view of the linked packaged product 1, respectively. Referring to FIGS. 1 (A), 1 (B), and 1 (C), a linked packaged product 1 is composed of a plurality of packaged products 2, and these packaged products 2 are coupled to each other in one direction. Yes. The plurality of packaged products 2 are two or more packaged products 2, which are ten packaged products 2 in the present embodiment.
　包装品２は、吸収性物品３と、吸収性物品３を包装する包装袋４とから構成され、連結包装製品１の長手方向に沿う包装品２の縦方向に延びる縦シール部分（縦接合部）６と、縦方向の両端において横方向に延びる横シール部分（横接合部）５とによってシールされている。包装品２は、横シール部分５に設けられた第１の弱め線（切り離し穴）７を介して互いに連結されている。連結包装製品１を第１の弱め線７に沿って切り離すことにより、個々の包装品２が得られる。第１の弱め線７は、複数の切り離し用の穴が破線状に一列に並んだミシン目のような構成を有しており、各切り離し穴は包装袋４のシートの貫通した所又は窪んだ所、すなわち切断部又は薄肉部として形成される。 The packaged product 2 includes an absorbent article 3 and a packaging bag 4 for packaging the absorbent article 3, and a vertical seal portion (longitudinal joint portion) extending in the longitudinal direction of the packaged product 2 along the longitudinal direction of the connected packaged product 1. ) 6 and lateral seal portions (lateral joint portions) 5 extending in the lateral direction at both ends in the longitudinal direction. The packaged products 2 are connected to each other via first weakening lines (separation holes) 7 provided in the lateral seal portion 5. By separating the linked packaged product 1 along the first weakening line 7, individual packaged products 2 are obtained. The first weakening line 7 has a structure like a perforation in which a plurality of detaching holes are arranged in a line in a broken line shape, and each detaching hole is recessed or recessed in the sheet of the packaging bag 4. In other words, it is formed as a cut portion or a thin portion.
　また、包装品２は空気抜き穴７０を有している。空気抜き穴７０は包装品２の両端の横シール部分５の内側の少なくとも一方に設けられている。言い換えると、空気抜き穴７０は、包装袋４における吸収性物品３の一方の端部に対応する箇所と包装袋４における吸収性物品３の一方の端部に対向する横シール部分５との間（第１の領域）、及び、包装袋４における吸収性物品３の他方の端部に対応する箇所と包装袋４における吸収性物品３の他方の端部に対向する横シール部分５との間（第２の領域）、のうちの少なくとも一方に設けられている。本実施の形態では、複数の空気抜き穴７０が、上記の第１の領域及び第２の領域のそれぞれに、包装品２の横シール部分５に沿って延びるように一列に並んだ構成を有しており、各空気抜き穴７０は包装袋４のシートの貫通した所、すなわち切断部として形成される。 Moreover, the package 2 has an air vent hole 70. The air vent hole 70 is provided in at least one of the inner sides of the lateral seal portions 5 at both ends of the packaged product 2. In other words, the air vent hole 70 is between the portion corresponding to one end portion of the absorbent article 3 in the packaging bag 4 and the lateral seal portion 5 facing one end portion of the absorbent article 3 in the packaging bag 4 ( (1st area | region) and the location corresponding to the other edge part of the absorbent article 3 in the packaging bag 4, and the horizontal seal part 5 which opposes the other edge part of the absorbent article 3 in the packaging bag 4 ( In the second region). In the present embodiment, a plurality of air vent holes 70 are arranged in a row so as to extend along the lateral seal portion 5 of the package 2 in each of the first region and the second region. Each air vent hole 70 is formed as a portion where the sheet of the packaging bag 4 penetrates, that is, as a cut portion.
　ここで、第１の弱め線７の複数の切り離し穴よりも空気抜き穴７０の方が包装品２の横方向（横シール部分５と平行な方向）について粗く形成されることが好ましい。言い換えると、複数の切り離し穴における横方向の長さ成分の合計が、複数の空気抜き穴７０における横方向の長さ成分の合計よりも大きくなるように複数の切り離し穴及び複数の空気抜き穴７０が形成されることが好ましい。それにより、連結包装製品１の長手方向（包装品２の縦方向）に包装品２を引っ張ったとき、より確実に、第１の弱め線７の複数の切り離し穴を境にして包装品２を切り離すことができ、且つ、複数の空気抜き穴７０を境にして包装品２自身が破断することを防止できる。 Here, it is preferable that the air vent hole 70 is formed to be rougher in the lateral direction of the packaged product 2 (the direction parallel to the lateral seal portion 5) than the plurality of separation holes of the first weakening line 7. In other words, the plurality of separation holes and the plurality of air vent holes 70 are formed such that the sum of the length components in the lateral direction of the plurality of cut holes is larger than the sum of the length components in the lateral direction of the plurality of air vent holes 70. It is preferred that Thereby, when the packaged product 2 is pulled in the longitudinal direction of the linked packaged product 1 (longitudinal direction of the packaged product 2), the packaged product 2 is more reliably bounded by the plurality of separation holes of the first weakening line 7. It can be separated and the packaged product 2 itself can be prevented from breaking at the plurality of air vent holes 70 as boundaries.
　また、本実施の形態では、包装品２は、両端の横シール部分５の間に縦シール部分６と沿って延びる第２の弱め線８を有している。包装品２の側面を第２の弱め線８に沿って切り開くことにより、包装品２が開封される。第２の弱め線８は、複数の開封用の穴が破線状に一列に並んだミシン目のような構成を有しており、各開封穴は包装袋４のシートの貫通した所又は窪んだ所、すなわち切断部又は薄肉部として形成される。 Further, in the present embodiment, the package 2 has a second weakening line 8 extending along the vertical seal portion 6 between the horizontal seal portions 5 at both ends. The package 2 is opened by cutting the side surface of the package 2 along the second weakening line 8. The second weakening line 8 has a structure such as a perforation in which a plurality of opening holes are arranged in a line in a broken line, and each opening hole is recessed or recessed in the sheet of the packaging bag 4. In other words, it is formed as a cut portion or a thin portion.
　吸収性物品３は、使い捨ておむつや生理用ナプキンのような吸収性物品から構成され、本実施の形態ではパンツ型おむつである。したがって、吸収性物品３は、弾力性、すなわち変形に抗して原形に復しようとする性質を有している。包装袋４は、ポリエチレン（ＰＥ）フィルムやポリプロピレン（ＰＰ）フィルムのような吸収性物品を包装するのに適したシート材から構成される。 The absorbent article 3 is composed of an absorbent article such as a disposable diaper or a sanitary napkin, and is a pants-type diaper in the present embodiment. Therefore, the absorbent article 3 has elasticity, that is, a property of trying to restore its original shape against deformation. The packaging bag 4 is composed of a sheet material suitable for packaging an absorbent article such as a polyethylene (PE) film or a polypropylene (PP) film.
　図２は、連結包装製品１の製造装置１０の構成の一例を示している。図２を参照すると、連結包装製品製造装置１０は、吸収性物品製造装置２０と、折り畳みユニット１０Ａと、規制ユニット１０Ｂと、包装ユニット１０Ｃと、接合ユニット１０Ｄと、切断ユニット１０Ｅとを具備している。これらの吸収性物品製造装置２０及び各ユニット１０Ａ～１０Ｅはインライン配置になっている。 FIG. 2 shows an example of the configuration of the manufacturing apparatus 10 for the linked packaged product 1. Referring to FIG. 2, the linked packaged product manufacturing apparatus 10 includes an absorbent article manufacturing apparatus 20, a folding unit 10A, a regulation unit 10B, a packaging unit 10C, a joining unit 10D, and a cutting unit 10E. Yes. The absorbent article manufacturing apparatus 20 and the units 10A to 10E are arranged in-line.
　ただし、連結包装製品製造装置１０は、吸収性物品３等の搬送に関して、搬送方向（ＭＤ方向）、搬送方向に直交し搬送面に沿った横断方向（ＣＤ方向）及び搬送方向と横断方向とに直交する上下方向（ＴＤ方向）を有するものとする。また、「搬送方向の上流側」、「搬送方向の下流側」を単に「上流側」、「下流側」とも称し、「上下方向の上側」、「上下方向の下側」を単に「上側」、「下側」とも称する。また、吸収性物品３は長手方向（Ｌ）、長手方向に直交する幅方向（Ｗ）及び長手方向と幅方向とに直交する厚さ方向（Ｈ）を有するものとする。そして、吸収性物品３の搬送中では、搬送方向、横断方向及び上下方向は、長手方向、幅方向及び厚さ方向と重なるので、吸収性物品３の搬送中については長手方向、幅方向及び厚さ方向として搬送方向、横断方向及び上下方向も用いることとする。 However, the connected packaged product manufacturing apparatus 10 is related to the conveyance of the absorbent article 3 and the like in the conveyance direction (MD direction), the transverse direction orthogonal to the conveyance direction (CD direction) and the conveyance direction and the transverse direction. It shall have the up-and-down direction (TD direction) which intersects perpendicularly. In addition, “upstream in the transport direction” and “downstream in the transport direction” are also simply referred to as “upstream” and “downstream”, and “upward in the vertical direction” and “lower in the vertical direction” are simply “upper”. , Also referred to as “lower”. Moreover, the absorbent article 3 shall have a longitudinal direction (L), the width direction (W) orthogonal to a longitudinal direction, and the thickness direction (H) orthogonal to a longitudinal direction and a width direction. And while the absorbent article 3 is being transported, the transport direction, the transverse direction, and the vertical direction overlap the longitudinal direction, the width direction, and the thickness direction. The transport direction, the transverse direction, and the vertical direction are also used as the vertical direction.
　吸収性物品製造装置２０は、吸収性物品３を連続的に製造する。製造された吸収性物品３は、吸収性物品製造装置２０に直接的に接続された搬送ベルト２１により折り畳みユニット１０Ａに順次搬送される。 The absorbent article manufacturing apparatus 20 continuously manufactures the absorbent article 3. The manufactured absorbent article 3 is sequentially conveyed to the folding unit 10 </ b> A by the conveyor belt 21 directly connected to the absorbent article manufacturing apparatus 20.
　折り畳みユニット１０Ａは、一方向に並んで搬送されてくる吸収性物品３を搬送方向に順次搬送しながら、折り畳まれた部分がそれ以外の部分と上下方向に重なるように吸収性物品３を一回以上折り畳む。本実施の形態では一回折り畳んで二つ折りの吸収性物品３を形成する。二つ折りの吸収性物品３は、搬送ベルト２５により規制ユニット１０Ｂに順次搬送される。 The folding unit 10 </ b> A rotates the absorbent article 3 once so that the folded part overlaps with the other parts in the vertical direction while sequentially carrying the absorbent article 3 conveyed side by side in the conveyance direction. Fold it up. In the present embodiment, the absorbent article 3 is folded twice to form a bi-fold absorbent article 3. The bi-fold absorbent article 3 is sequentially transported to the regulation unit 10B by the transport belt 25.
　規制ユニット１０Ｂは、一方向に並んで搬送されてくる折り畳まれた吸収性物品３を搬送方向に順次搬送しながら、吸収性物品３の横断方向の幅を第１の寸法以下にする規制を行う。規制後の吸収性物品３は、包装ユニット１０Ｃに順次搬送される。 The regulation unit 10B regulates the width in the transverse direction of the absorbent article 3 to be equal to or smaller than the first dimension while sequentially conveying the folded absorbent article 3 conveyed side by side in one direction in the conveyance direction. . The regulated absorbent article 3 is sequentially conveyed to the packaging unit 10C.
　包装ユニット１０Ｃは、第２の弱め線８を有し、搬送方向に搬送されつつ連続的に筒状に形成される連続シート４ｂの内側に、規制後の吸収性物品３を順次供給し、縦シール部分６（図１）を形成して吸収性物品３を包装する。このとき、筒状に形成される連続シート４ｂにおける横断方向の内側の寸法が第１の寸法である。吸収性物品３を内包する筒状の連続シート４ｂは、接合ユニット１０Ｄに順次搬送される。 The packaging unit 10 </ b> C has the second weakening line 8 and sequentially supplies the regulated absorbent articles 3 inside the continuous sheet 4 b that is continuously formed in a cylindrical shape while being transported in the transport direction. The absorbent article 3 is packaged by forming a seal portion 6 (FIG. 1). At this time, the dimension of the inner side of the transverse direction in the continuous sheet 4b formed in a cylindrical shape is the first dimension. The cylindrical continuous sheet 4b containing the absorbent article 3 is sequentially conveyed to the joining unit 10D.
　接合ユニット１０Ｄは、吸収性物品３を内包した筒状の連続シート４ｂを搬送方向に搬送しながら、筒状の連続シート４ｂにおける隣り合う吸収性物品３同士の間の部分で、上下方向の上側の側面と下側の側面とを挟んで、空気抜き穴７０（図１）を形成し、横シール部分５（図１）を形成し、第１の弱め線７（図１）を形成する。それにより、吸収性物品３及び包装袋４により構成される包装品２が形成されると共に、複数の包装品２が一列に連結されている包装品連結体９が形成される。包装品連結体９は、切断ユニット１０Ｅに搬送される。 The joining unit 10D is a portion between the adjacent absorbent articles 3 in the cylindrical continuous sheet 4b while conveying the cylindrical continuous sheet 4b containing the absorbent article 3 in the conveyance direction, and the upper side in the vertical direction. An air vent hole 70 (FIG. 1) is formed, a lateral seal portion 5 (FIG. 1) is formed, and a first weakening line 7 (FIG. 1) is formed. Thereby, while the packaged goods 2 comprised by the absorbent article 3 and the packaging bag 4 are formed, the packaged goods coupling body 9 in which the some packaged goods 2 are connected with 1 row is formed. The packaged article assembly 9 is conveyed to the cutting unit 10E.
　切断ユニット１０Ｅは、形成された包装品連結体９において、予め設定された個数ごとに包装品連結体９を第１の弱め線７で切断して、分割する。本実施の形態では、包装品２を１０個ずつに分割する。それにより、予め設定された個数の包装品２が一方向に連結されてなる連結包装製品１が形成される。連結包装製品１は、段ボール箱のような梱包箱に梱包される。 The cutting unit 10E cuts and divides the packaged product assembly 9 by the first weakening line 7 for each preset number of the packaged product assembly 9 formed. In the present embodiment, the packaged product 2 is divided into ten pieces. Thereby, a linked packaged product 1 is formed in which a predetermined number of packaged products 2 are linked in one direction. The linked packaged product 1 is packed in a packing box such as a cardboard box.
　以下、折り畳みユニット１０Ａ、規制ユニット１０Ｂ、包装ユニット１０Ｃ、接合ユニット１０Ｄ及び切断ユニット１０Ｅの構成の一例について説明する。 Hereinafter, an example of the configuration of the folding unit 10A, the regulation unit 10B, the packaging unit 10C, the joining unit 10D, and the cutting unit 10E will be described.
　図２に示すように、折り畳みユニット１０Ａは、搬送ベルト２１、２２、２３を備えている。三角形状に架張された搬送ベルト２２の一つのベルト面に搬送ベルト２１が対面配置され、搬送ベルト２２の別の一つのベルト面に搬送ベルト２３が対面配置されている。搬送ベルト２１と搬送ベルト２２との間に形成される搬送路は折り畳まれていない吸収性物品３を把持して、搬送方向に搬送可能である。搬送ベルト２２と搬送ベルト２３との間に形成される搬送路は折り畳まれた吸収性物品３を把持して、搬送方向に搬送可能である。搬送ベルト２２側の搬送路は、搬送ベルト２１側の搬送路に所定角度（例示：９０度）で交差している。折り畳みユニット１０Ａは、その交差点の近傍に折り板２４を更に備えている。折り板２４は、搬送ベルト２１側の搬送路に上記の所定角度で交差し、搬送ベルト２３側の搬送路に平行となるようにその交差点に出入りする。したがって、折り板２４の交差点への出入りのタイミングと、搬送ベルト２１側の搬送路での吸収性物品３の搬送のタイミングとを合わせることで、搬送ベルト２１側の搬送路で搬送される吸収性物品３を、折り板２４で搬送ベルト２３側の搬送路に折り込み、それにより吸収性物品３の折り畳みを可能としている。 As shown in FIG. 2, the folding unit 10 </ b> A includes transport belts 21, 22, and 23. The conveyor belt 21 is disposed facing one belt surface of the conveyor belt 22 stretched in a triangular shape, and the conveyor belt 23 is disposed facing the other belt surface of the conveyor belt 22. The conveyance path formed between the conveyance belt 21 and the conveyance belt 22 can grip the absorbent article 3 that is not folded and can convey the absorbent article 3 in the conveyance direction. The conveyance path formed between the conveyance belt 22 and the conveyance belt 23 can hold the folded absorbent article 3 and convey it in the conveyance direction. The conveyance path on the conveyance belt 22 side intersects the conveyance path on the conveyance belt 21 side at a predetermined angle (example: 90 degrees). The folding unit 10A further includes a folding plate 24 in the vicinity of the intersection. The folding plate 24 crosses the conveyance path on the conveyance belt 21 side at the predetermined angle and enters and exits the intersection so as to be parallel to the conveyance path on the conveyance belt 23 side. Therefore, the absorbency conveyed by the conveyance path by the side of the conveyance belt 21 is match | combined with the timing of entrance / exit to the intersection of the folding plate 24, and the timing of conveyance of the absorbent article 3 by the conveyance path by the side of the conveyance belt 21. The article 3 is folded by the folding plate 24 into the conveyance path on the side of the conveyance belt 23, thereby enabling the absorbent article 3 to be folded.
　規制ユニット１０Ｂは、下側搬送ベルト３１と、上側搬送ベルト３２とを備えている。図３は規制ユニット１０Ｂの側面図及び頂面図を示している。図３に示すように、下側搬送ベルト３１と上側搬送ベルト３２とは対面配置されており、下側搬送ベルト３１と上側搬送ベルト３２との間に、折り畳まれた吸収性物品３を搬送方向に搬送するための搬送路（空間３３ｓ）が形成されている。下側搬送ベルト３１と上側搬送ベルト３２とは横断方向の中心の位置が互いに重なるように配置され、下側搬送ベルト３１の幅が上側搬送ベルト３２の幅より大きく形成されている。 The regulation unit 10 </ b> B includes a lower conveyance belt 31 and an upper conveyance belt 32. FIG. 3 shows a side view and a top view of the regulating unit 10B. As shown in FIG. 3, the lower conveyance belt 31 and the upper conveyance belt 32 are arranged to face each other, and the absorbent article 3 folded between the lower conveyance belt 31 and the upper conveyance belt 32 is conveyed in the conveyance direction. A transport path (space 33s) for transporting to the center is formed. The lower conveyor belt 31 and the upper conveyor belt 32 are disposed so that the center positions in the transverse direction overlap each other, and the width of the lower conveyor belt 31 is formed larger than the width of the upper conveyor belt 32.
　規制ユニット１０Ｂは、吸収性物品３が搬送される空間３３ｓの横断方向の両側に、互いに対向する一対の規制部材３３を更に備えている。図４（Ａ）及び図４（Ｂ）はそれぞれ規制部材３３を搬送方向の上流側及び下流側から見た図を示している。本実施の形態では、一対の規制部材３３は、金属や樹脂などの平板部材で形成されたガイド板であり、下側搬送ベルト３１の搬送面から上下方向に略垂直に立設されている。一対の規制部材３３及び搬送ロール３１ａ、３２ａで囲まれた領域が吸収性物品３の搬送路（空間３３ｓ）の入口であり、一対の規制部材３３及び搬送ロール３１ｂ、３２ｂで囲まれた領域が吸収性物品３の搬送路（空間３３ｓ）の出口となる。一対の規制部材３３における横断方向の互いの内側の距離、すなわち内側横断距離は、搬送方向の上流側の端部３３ａ（図４（Ａ））から下流側の端部３３ｂ（図４（Ｂ））に向かうに連れて短くなっている。すなわち、その内側横断距離は、上流側の端部３３ａにおいてｄｓ１であるが、下流側の端部３３ｂにおいてｄｅ１（＜ｄｓ１）である。上流側の端部３３ａでの内側横断距離ｄｓ１は、規制工程前の吸収性物品３の横断方向の幅よりもやや大きい値に設定される。下流側の端部３３ｂでの内側横断距離ｄｅ１は、後述される第１の寸法Ｄ０１以下に設定される。したがって、一対の規制部材３３の間に吸収性物品３を通すことによって、位置連れを修正し、横断方向の吸収性物品３の幅を第１の寸法Ｄ０１以下に規制可能である。 The regulating unit 10B further includes a pair of regulating members 33 facing each other on both sides in the transverse direction of the space 33s in which the absorbent article 3 is conveyed. 4A and 4B show views of the regulating member 33 as viewed from the upstream side and the downstream side in the transport direction, respectively. In the present embodiment, the pair of regulating members 33 are guide plates formed of a flat plate member such as metal or resin, and are erected substantially vertically from the conveyance surface of the lower conveyance belt 31 in the vertical direction. A region surrounded by the pair of regulating members 33 and the conveyance rolls 31a and 32a is an entrance of the conveyance path (space 33s) of the absorbent article 3, and a region surrounded by the pair of regulating members 33 and the conveyance rolls 31b and 32b. It becomes an exit of the conveyance path (space 33s) of the absorbent article 3. The distance between the pair of regulating members 33 in the transverse direction, that is, the inner transverse distance is determined from the upstream end 33a (FIG. 4A) to the downstream end 33b (FIG. 4B). ) Is getting shorter as you head to. That is, the inner transverse distance is ds1 at the upstream end portion 33a, but is de1 (<ds1) at the downstream end portion 33b. The inner transverse distance ds1 at the upstream end 33a is set to a value that is slightly larger than the transverse width of the absorbent article 3 before the regulation step. The inner transverse distance de1 at the downstream end portion 33b is set to be equal to or smaller than a first dimension D01 described later. Therefore, by passing the absorbent article 3 between the pair of regulating members 33, the position of the absorbent article 3 can be corrected and the width of the absorbent article 3 in the transverse direction can be regulated to the first dimension D01 or less.
　更に、下側搬送ベルト３１と上側搬送ベルト３２との間の上下方向の距離、すなわち内側上下距離は、上流側の端部３３ａ（図４（Ａ））から下流側の端部３３ｂ（図４（Ｂ））に向かうに連れて短くなっている。すなわち、その内側上下距離は、上流側の端部３３ａにおいてｄｓ２であるが、下流側の端部３３ｂにおいてｄｅ２（＜ｄｓ２）である。上流側の端部３３ａでの内側上下距離ｄｓ２は、規制工程前の吸収性物品３の上下方向の厚さよりも大きい値に設定される。下流側の端部３３ｂでの内側上下距離ｄｅ２は、後述される第２の寸法Ｄ０２以下に設定される。したがって、下側搬送ベルト３１と上側搬送ベルト３２との間に吸収性物品３を通すことによって、上下方向の吸収性物品３の厚さを第２の寸法Ｄ０２以下に規制可能である。 Further, the vertical distance between the lower conveyance belt 31 and the upper conveyance belt 32, that is, the inner vertical distance, is determined from the upstream end 33a (FIG. 4A) to the downstream end 33b (FIG. 4). (B) is getting shorter. That is, the inner vertical distance is ds2 at the upstream end 33a, but de2 (<ds2) at the downstream end 33b. The inner vertical distance ds2 at the upstream end portion 33a is set to a value larger than the vertical thickness of the absorbent article 3 before the regulation step. The inner vertical distance de2 at the downstream end 33b is set to a second dimension D02 or less, which will be described later. Therefore, by passing the absorbent article 3 between the lower conveyance belt 31 and the upper conveyance belt 32, the thickness of the absorbent article 3 in the vertical direction can be regulated to the second dimension D02 or less.
　図２に示すように、包装ユニット１０Ｃは、上下一対のロール４６、４７を含む弱め線形成器４１を備えている。この一対のロール４６、４７は、横断方向に沿った回転軸周りに回転し、それらの間に連続シート４ａを引き込み、把持し、送り出す。ロール４６は、第２の弱め線８に対応した形状の弱め線形成用の刃を搬送方向に沿って外周面に有する弱め線刃ロールであり、本実施の形態ではミシン目刃を有するミシン目刃ロールである。ロール４７は、平滑な外周面により弱め線刃を受けるアンビルロールである。これらロール４６、４７の回転によりロール４６、４７同士の間に連続シート４ａが通過することにより、連続シート４ａに搬送方向に沿って第２の弱め線８が形成される。 As shown in FIG. 2, the packaging unit 10 </ b> C includes a weakening line former 41 including a pair of upper and lower rolls 46 and 47. The pair of rolls 46 and 47 rotate around the rotation axis along the transverse direction, and the continuous sheet 4a is drawn, held and sent between them. The roll 46 is a weak line blade roll having a weak line forming blade having a shape corresponding to the second weak line 8 on the outer peripheral surface along the conveying direction. In the present embodiment, the perforated line has a perforated blade. It is a blade roll. The roll 47 is an anvil roll that receives the weakening wire blade by a smooth outer peripheral surface. When the continuous sheet 4a passes between the rolls 46 and 47 by the rotation of the rolls 46 and 47, the second weakening line 8 is formed in the continuous sheet 4a along the conveyance direction.
　包装ユニット１０Ｃは、下側搬送ベルト３１の下流側に隣り合うように配置された折り曲げ部材４３を更に備えている。折り曲げ部材４３は、弱め線形成器４１から送り出され搬送ローラ４２により搬送された連続シート４ａを下側搬送ベルト３１や折り曲げ部材４３よりも鉛直下方側から連続的に供給される。折り曲げ部材４３は、供給された連続シート４ａが通過することにより、連続シート４ａの横断方向の両側端縁部を持ち上げて筒状にし、両側端縁部同士を重ならせて重なり部を形成することができる。それにより折り曲げ部材４３において筒状の連続シート４ｂが形成される。 The packaging unit 10 </ b> C further includes a bending member 43 disposed adjacent to the downstream side of the lower conveyance belt 31. The bending member 43 is continuously supplied from the lower side of the lower conveyance belt 31 and the bending member 43 from the lower side of the continuous sheet 4a fed from the weak line forming device 41 and conveyed by the conveying roller 42. When the supplied continuous sheet 4a passes, the bending member 43 lifts both side edges in the transverse direction of the continuous sheet 4a into a cylindrical shape, and overlaps both side edges to form an overlapping portion. be able to. Thereby, the cylindrical continuous sheet 4 b is formed in the bending member 43.
　図３に示すように、折り曲げ部材４３の上流側の入口と吸収性物品３の搬送路（空間３３ｓ）の出口（図４（Ｂ））とは対向している。筒状の連続シート４ｂは、折り曲げ部材４３の内壁に沿うように筒状に形成され、その横断方向の内側の寸法が第１の寸法Ｄ０１となり、その上下方向の内側の寸法が第２の寸法Ｄ０２となる。第１の寸法Ｄ０１は規制された吸収性物品３の横断方向の幅以上であり、第２の寸法Ｄ０２は規制された吸収性物品３の上下方向の厚さ以上である。したがって、規制された吸収性物品３は筒状の連続シート４ｂの内部４ｂｓへ挿入されることができる。なお、筒状の連続シート４ｂの横断方向の両側端縁部同士は接触して、重なり部を形成しているが、この段階では接合されていない。 As shown in FIG. 3, the upstream inlet of the bending member 43 and the outlet (FIG. 4B) of the conveyance path (space 33s) of the absorbent article 3 face each other. The cylindrical continuous sheet 4b is formed in a cylindrical shape along the inner wall of the bending member 43, the inner dimension in the transverse direction is the first dimension D01, and the inner dimension in the vertical direction is the second dimension. D02. The first dimension D01 is equal to or greater than the transverse width of the restricted absorbent article 3, and the second dimension D02 is equal to or greater than the thickness of the restricted absorbent article 3 in the vertical direction. Therefore, the regulated absorbent article 3 can be inserted into the inside 4bs of the cylindrical continuous sheet 4b. In addition, although the edge parts on both sides in the transverse direction of the cylindrical continuous sheet 4b are in contact with each other to form an overlapping portion, they are not joined at this stage.
　図２に示すように、折り曲げ部材４３にはその上流側の端部において規制ユニット１０Ｂからの吸収性物品３が供給される。このとき、折り曲げ部材４３上では連続シート４ａが筒状に形成されて筒状の連続シート４ｂが形成されている。したがって、折り曲げ部材４３により連続的に筒状に形成される連続シート４ｂ内に吸収性物品３が供給される、ということができる。 As shown in FIG. 2, the absorbent article 3 from the regulation unit 10B is supplied to the bending member 43 at the upstream end thereof. At this time, on the bending member 43, the continuous sheet 4a is formed in a cylindrical shape, and the cylindrical continuous sheet 4b is formed. Therefore, it can be said that the absorbent article 3 is supplied into the continuous sheet 4b formed continuously in a cylindrical shape by the bending member 43.
　包装ユニット１０Ｃは、縦シール器４４と搬送ベルト４５とを更に備えている。縦シール器４４と搬送ベルト４５とは対面配置されており、搬送ベルト４５が吸収性物品３を内包した筒状の連続シート４ｂを搬送方向に搬送しつつ、縦シール器４４が筒状の連続シート４ｂの上側に形成されている重なり部分をシールして、縦シール部分６（図１）を形成する。シール方法は加熱による熱融着が挙げられる。 The packaging unit 10 </ b> C further includes a vertical sealer 44 and a conveyance belt 45. The vertical sealer 44 and the conveyor belt 45 are arranged so as to face each other. The conveyor belt 45 conveys the cylindrical continuous sheet 4b containing the absorbent article 3 in the conveyance direction, and the vertical sealer 44 has a cylindrical continuous shape. The overlapping portion formed on the upper side of the sheet 4b is sealed to form the vertical seal portion 6 (FIG. 1). Examples of the sealing method include heat fusion by heating.
　接合ユニット１０Ｄは一対の搬送ベルト５１、５２と、横シール器５３とを備えている。一対の搬送ベルト５１、５２は、互いに対面配置されており、吸収性物品３を内包した筒状の連続シート４ｂを搬送ベルト５１、５２の間に把持しつつ、搬送方向に横シール器５３まで搬送する。図５は横シール器５３の側面図を示しており、横シール器５３は上下一対のロール５４、５５を含んでいる。この一対のロール５４、５５は、横断方向に沿った回転軸周りに回転し、それらの間に筒状の連続シート４ｂを引き込み、把持し、送り出す。ロール５４は複数の押圧部材５４ａを外周面に有しており、本実施の形態では４個の押圧部材５４ａを有する。複数の押圧部材５４ａは、ロール５４の外周面の周方向に対して等間隔で配置されている。同様に、ロール５５は複数の押圧部材５５ａを外周面に有しており、本実施の形態では４個の押圧部材５５ａを有する。複数の押圧部材５５ａは、ロール５５の外周面の周方向に対して等間隔で配置されている。 The joining unit 10D includes a pair of conveyor belts 51 and 52 and a lateral sealer 53. The pair of conveying belts 51 and 52 are arranged to face each other, and hold the cylindrical continuous sheet 4b containing the absorbent article 3 between the conveying belts 51 and 52, up to the lateral sealer 53 in the conveying direction. Transport. FIG. 5 shows a side view of the horizontal sealer 53, which includes a pair of upper and lower rolls 54 and 55. The pair of rolls 54 and 55 rotate around the rotation axis along the transverse direction, and the cylindrical continuous sheet 4b is drawn between, gripped and sent out between them. The roll 54 has a plurality of pressing members 54a on the outer peripheral surface, and has four pressing members 54a in the present embodiment. The plurality of pressing members 54 a are arranged at equal intervals with respect to the circumferential direction of the outer peripheral surface of the roll 54. Similarly, the roll 55 has a plurality of pressing members 55a on the outer peripheral surface, and has four pressing members 55a in the present embodiment. The plurality of pressing members 55 a are arranged at equal intervals in the circumferential direction of the outer peripheral surface of the roll 55.
　押圧部材５４ａは、ロール５４の外周面から外側に向かって突出すると共に、横断方向に沿って延在している。押圧部材５４ａの頂部５４ｓには、横シール部分５、第１の弱め線７及び空気抜き穴７０の形成用のパターンが形成されている。同様に、押圧部材５５ａは、ロール５５の外周面から外側に向かって突出すると共に、横断方向に沿って延在している。押圧部材５５ａの頂部５５ｓには、横シール部分５、第１の弱め線７及び空気抜き穴７０の形成用のパターンが形成されている。頂部５４ｓのパターン及び頂部５５ｓのパターンは、例えば一方が凸状のパターンであり、他方がその凸状のパターンを受ける平滑なパターンである。本実施の形態では、頂部５４ｓのパターンが凸状のパターンであり、頂部５５ｓのパターンがその凸状のパターンを受ける平滑なパターンである。 The pressing member 54a protrudes outward from the outer peripheral surface of the roll 54 and extends in the transverse direction. A pattern for forming the lateral seal portion 5, the first weakening line 7, and the air vent hole 70 is formed on the top 54 s of the pressing member 54 a. Similarly, the pressing member 55a protrudes outward from the outer peripheral surface of the roll 55 and extends along the transverse direction. A pattern for forming the lateral seal portion 5, the first weakening line 7, and the air vent hole 70 is formed on the top portion 55 s of the pressing member 55 a. For example, one of the top 54s pattern and the top 55s pattern is a convex pattern, and the other is a smooth pattern that receives the convex pattern. In the present embodiment, the pattern of the top 54s is a convex pattern, and the pattern of the top 55s is a smooth pattern that receives the convex pattern.
　図６は押圧部材５４ａの頂部５４ｓのパターンの一例を示す頂面図である。頂部５４ｓには、第１の弱め線７形成用のパターン７３、横シール部分５形成用のパターン７２、及び、空気抜き穴７０形成用のパターン７１が形成されている。パターン７３は、頂部５４ｓの搬送方向の中心に横断方向に延在するように設けられ、横断方向に長手方向を有する略長方形の凸部が横断方向に一列に並んだパターンである。パターン７２は、パターン７３の搬送方向の両側に横断方向に延在するように設けられ、略正方形の凸部が横断方向及び搬送方向に行列状に並んだパターンである。パターン７１は、パターン７２のパターン７３とは反対側に横断方向に延在するように設けられ、略正方形の凸部が横断方向に一列に並んだパターンである。 FIG. 6 is a top view showing an example of the pattern of the top 54s of the pressing member 54a. A pattern 73 for forming the first weakening line 7, a pattern 72 for forming the lateral seal portion 5, and a pattern 71 for forming the air vent hole 70 are formed on the top 54 s. The pattern 73 is a pattern that is provided so as to extend in the transverse direction at the center in the transport direction of the top portion 54s, and that substantially rectangular convex portions having a longitudinal direction in the transverse direction are arranged in a row in the transverse direction. The pattern 72 is a pattern that is provided on both sides of the pattern 73 in the transport direction so as to extend in the transverse direction, and in which substantially square convex portions are arranged in a matrix in the transverse direction and the transport direction. The pattern 71 is a pattern that is provided so as to extend in the transverse direction on the opposite side of the pattern 73 of the pattern 72, and in which substantially square convex portions are arranged in a row in the transverse direction.
　図７は頂部５４ｓのパターンの一例の詳細を示す模式図である。パターン７３の凸部７３ｕは搬送方向の長さＬｍ３×横断方向の長さＬｃ３の長方形である。第１の弱め線７を通常の搬送中には切断できないが、切断工程では切断できるようにする観点から、Ｌｍ３は０．１～１．０ｍｍの範囲が好ましく、Ｌｃ３は０．２～８．０ｍｍの範囲が好ましい。また、パターン７３の凸部７３ｕ同士の横断方向のピッチ（図示せず）は、０．４～１２．０ｍｍの範囲が好ましい。 FIG. 7 is a schematic diagram showing details of an example of the pattern of the top 54s. The convex portion 73u of the pattern 73 is a rectangle having a length Lm3 in the transport direction × a length Lc3 in the transverse direction. The first weakening line 7 cannot be cut during normal conveyance, but from the viewpoint of enabling cutting in the cutting step, Lm3 is preferably in the range of 0.1 to 1.0 mm, and Lc3 is in the range of 0.2 to 8. A range of 0 mm is preferred. The pitch in the transverse direction (not shown) between the convex portions 73u of the pattern 73 is preferably in the range of 0.4 to 12.0 mm.
　また、パターン７２の熱がパターン７３に伝達するのを抑制する観点から、パターン７３とパターン７２との搬送方向の距離Ｋ２は１．０～６．０ｍｍの範囲が好ましい。また、パターン７２の凸部７２ｕは搬送方向の長さＬｍ２×横断方向の長さＬｃ２の長方形である。横シール部分５に必要十分なシール性能を得る観点から、Ｌｍ２及びＬｃ２はいずれも０．２～２．０ｍｍの範囲が好ましい。また、横シール部分５のシール性能の観点から、パターン７２の凸部７２ｕ同士の搬送方向のピッチＰｍ２及び横断方向のピッチＰｃ２はいずれも０．４～４．０ｍｍの範囲が好ましい。 Further, from the viewpoint of suppressing the heat of the pattern 72 from being transmitted to the pattern 73, the distance K2 in the transport direction between the pattern 73 and the pattern 72 is preferably in the range of 1.0 to 6.0 mm. The convex portion 72u of the pattern 72 is a rectangle having a length Lm2 in the transport direction × a length Lc2 in the transverse direction. From the viewpoint of obtaining necessary and sufficient sealing performance for the lateral seal portion 5, both Lm2 and Lc2 are preferably in the range of 0.2 to 2.0 mm. Further, from the viewpoint of the sealing performance of the lateral seal portion 5, the pitch Pm2 in the transport direction and the pitch Pc2 in the transverse direction between the convex portions 72u of the pattern 72 are preferably in the range of 0.4 to 4.0 mm.
　また、パターン７２での熱がパターン７１に伝達するのを抑制する観点から、パターン７２とパターン７１との搬送方向の距離Ｋ１は１．０～６．０ｍｍの範囲が好ましい。また、パターン７１の凸部７１ｕは搬送方向の長さＬｍ１×横断方向の長さＬｃ１の長方形である。空気抜け穴７０が接合工程で空気を適切に排出して、切断工程でも切断されない観点から、Ｌｍ１及びＬｃ１はいずれも０．１～２．０ｍｍの範囲が好ましい。また、切断工程でも切断されない観点から、パターン７１の凸部７１ｕ同士の横断方向のピッチＰｃ１は０．４～４．０ｍｍの範囲が好ましい。 Further, from the viewpoint of suppressing the heat in the pattern 72 from being transmitted to the pattern 71, the distance K1 in the transport direction between the pattern 72 and the pattern 71 is preferably in the range of 1.0 to 6.0 mm. The convex portion 71u of the pattern 71 is a rectangle having a length Lm1 in the transport direction × a length Lc1 in the transverse direction. From the viewpoint that the air vent hole 70 appropriately discharges air in the joining process and is not cut in the cutting process, both Lm1 and Lc1 are preferably in the range of 0.1 to 2.0 mm. Further, from the viewpoint of not being cut in the cutting step, the transverse pitch Pc1 between the convex portions 71u of the pattern 71 is preferably in the range of 0.4 to 4.0 mm.
　なお、本実施の形態では、パターン７１、７２、７３は長方形や正方形などの矩形であるが、本発明はこの例に限定されるものではなく、例えば他の多角形や円形や楕円形などであってもよい。 In the present embodiment, the patterns 71, 72, and 73 are rectangles such as rectangles and squares. However, the present invention is not limited to this example, and may be other polygons, circles, ellipses, or the like. There may be.
　ただし、パターン７３の横断方向の長さ成分の合計が、パターン７１の横断方向の長さ成分の合計よりも大きくなるように、パターン７３及びパターン７１が形成されることが好ましい。すなわち、パターン７３よりもパターン７１の方が横断方向について粗く形成されることが好ましい。それにより第１の弱め線７よりも空気抜き穴７０の方を横断方向について粗く形成でき、それゆえに連結包装製品１の長手方向に包装品２を引っ張ったとき、より確実に第１の弱め線７を境にして包装品２を切り離すことができ、且つ、空気抜き穴７０を境にして包装品２自身が破断することを防止できる。 However, it is preferable that the pattern 73 and the pattern 71 are formed such that the sum of the length components in the transverse direction of the pattern 73 is larger than the sum of the length components in the transverse direction of the pattern 71. That is, it is preferable that the pattern 71 is formed to be rougher in the transverse direction than the pattern 73. As a result, the air vent hole 70 can be formed rougher in the transverse direction than the first weakening line 7. Therefore, when the packaged product 2 is pulled in the longitudinal direction of the connected packaged product 1, the first weakening line 7 is more reliably produced. The packaged product 2 can be cut off at the boundary, and the packaged product 2 itself can be prevented from breaking at the air vent hole 70 as the boundary.
　図５に示すように、一対のロール５４、５５は、一つの押圧部材５４ａと一つの押圧部材５５ａとが互いに対面配置になるように互いに同期して回転する。互いに対面配置になった一対の押圧部材５４ａ、５５ａは、筒状の連続シート４ｂにおける互いに隣り合う吸収性物品３同士の間の部分で、上下方向の上側の側面４ｂ１と下側の側面４ｂ２とを挟み込む。そのとき、一対の押圧部材５４ａ、５５ａは、パターン７１、パターン７２、パターン７３、パターン７２、及び、パターン７１の順番で上側の側面４ｂ１と下側の側面４ｂ２とに接触する。したがって、一対の押圧部材５４ａ、５５ａは挟んだ箇所にて、筒状の連続シート４ｂをパターン７１で打ち抜いて空気抜き穴７０（図１）を形成し、加熱されたパターン７２の熱融着により横シール部分５（図１）を形成し、筒状の連続シート４ｂをパターン７３で打ち抜いて第１の弱め線７（図１）を形成し、加熱されたパターン７２の熱融着により横シール部分５（図１）を形成し、筒状の連続シート４ｂをパターン７１で打ち抜いて空気抜き穴７０（図１）を形成する。それらにより、包装品連結体９が形成される。 As shown in FIG. 5, the pair of rolls 54 and 55 rotate in synchronization with each other so that one pressing member 54a and one pressing member 55a are arranged facing each other. The pair of pressing members 54a and 55a that face each other is a portion between the absorbent articles 3 adjacent to each other in the cylindrical continuous sheet 4b, and the upper side surface 4b1 and the lower side surface 4b2 in the vertical direction. Is inserted. At that time, the pair of pressing members 54a and 55a are in contact with the upper side surface 4b1 and the lower side surface 4b2 in the order of the pattern 71, the pattern 72, the pattern 73, the pattern 72, and the pattern 71. Accordingly, the cylindrical continuous sheet 4b is punched out with the pattern 71 at the location where the pair of pressing members 54a and 55a are sandwiched to form the air vent hole 70 (FIG. 1), and the heated pattern 72 is heat-sealed. The seal portion 5 (FIG. 1) is formed, the cylindrical continuous sheet 4b is punched out with the pattern 73 to form the first weakening line 7 (FIG. 1), and the horizontal seal portion is formed by heat-sealing the heated pattern 72. 5 (FIG. 1) is formed, and the cylindrical continuous sheet 4b is punched out with a pattern 71 to form an air vent hole 70 (FIG. 1). As a result, the packaged article assembly 9 is formed.
　この場合、一対のロール５４、５５がパターン７１、７２、７３を用いるので、空気抜き穴７０は横シール部分５に隣接して横断方向に沿って一方の端部から他方の端部まで複数個形成されることになる。また、空気抜き穴７０は筒状の連続シート４ｂにおける上側の側面４ｂ１及び下側の側面４ｂ２の両方に形成されることになる。 In this case, since the pair of rolls 54 and 55 uses the patterns 71, 72, and 73, a plurality of air vent holes 70 are formed from one end to the other end along the transverse direction adjacent to the lateral seal portion 5. Will be. Moreover, the air vent hole 70 is formed in both the upper side surface 4b1 and the lower side surface 4b2 of the cylindrical continuous sheet 4b.
　切断ユニット１０Ｅは一対の搬送ベルト６１、６２と、切断器６３とを備えている。一対の搬送ベルト６１、６２は、互いに対面配置されており、包装品連結体９を搬送ベルト６１、６２の間に把持しつつ、搬送方向に切断器６３まで搬送する。切断器６３は互いに対面配置された一対のローラ６４、６５を含み、一対のローラ６４、６５はローラ６４、６５の間に包装品連結体９を把持しつつ搬送する。そして、包装品連結体９を切断すべきときに、ローラ６４、６５による包装品連結体９の搬送速度を、搬送ベルト６１、６２による包装品連結体９の搬送速度と比較して速くすることにより、包装品連結体９を切断する。それにより、所定数の包装品２が連結された連結包装製品１が形成される。 The cutting unit 10E includes a pair of conveying belts 61 and 62 and a cutter 63. The pair of conveyor belts 61 and 62 are arranged to face each other, and convey the packaged article coupling body 9 between the conveyor belts 61 and 62 and convey it to the cutter 63 in the conveyance direction. The cutting device 63 includes a pair of rollers 64 and 65 arranged to face each other. The pair of rollers 64 and 65 conveys the packaged article coupling body 9 between the rollers 64 and 65. And when the packaged article coupling body 9 is to be cut, the conveyance speed of the packaged article coupling body 9 by the rollers 64 and 65 is made faster than the conveyance speed of the packaged article coupling body 9 by the conveyor belts 61 and 62. Thus, the packaged article assembly 9 is cut. Thereby, the linked packaged product 1 in which a predetermined number of packaged products 2 are linked is formed.
　切断ユニット１０Ｅは更に一対の搬送ベルト６６、６７を備え、一対の搬送ベルト６６、６７は互いに対面配置されており、連結包装製品１を搬送ベルト６６、６７間に把持しつつ、連結包装製品１を梱包するための梱包装置（図示せず）まで連結包装製品１を搬送する。 The cutting unit 10E further includes a pair of transport belts 66 and 67, and the pair of transport belts 66 and 67 are arranged so as to face each other, and the connected package product 1 is held between the transport belts 66 and 67 while being held. The connected packaged product 1 is transported to a packing device (not shown) for packing the.
　ここで、切断器６３の上流側にある一対の搬送ベルト６１、６２のうち、包装品連結体９における空気抜き穴７０を有する面の側に配置される搬送ベルト（本実施の形態では搬送ベルト６１）は、搬送用のサクションベルトであってもよい。同様に、切断器６３の下流側にある一対の搬送ベルト６６、６７のうち、連結包装製品１における空気抜き穴７０を有する面の側に配置される搬送ベルト（本実施の形態では搬送ベルト６６）は、搬送用のサクションベルトであってもよい。この場合、空気抜き穴７０を有する面の側に配置された搬送用のサクションベルトで空気抜き穴７０から包装品２内の空気を吸引することができる。それにより、この段階において包装品２内に過剰に空気が残存する場合でも、その残存する空気を抜くことができ、横シール部分５等の接合が不完全になったり、破れたりするおそれがなくなる。 Here, among the pair of transport belts 61 and 62 on the upstream side of the cutter 63, the transport belt (in the present embodiment, the transport belt 61 is disposed on the side of the surface having the air vent hole 70 in the packaged article assembly 9). ) May be a conveying suction belt. Similarly, among the pair of transport belts 66 and 67 on the downstream side of the cutter 63, the transport belt (the transport belt 66 in the present embodiment) disposed on the side of the connected packaged product 1 having the air vent hole 70. May be a conveying suction belt. In this case, the air in the packaged product 2 can be sucked from the air vent hole 70 by the suction belt for conveyance disposed on the side having the air vent hole 70. Thereby, even if excessive air remains in the packaged product 2 at this stage, the remaining air can be removed, and there is no possibility that the joining of the lateral seal portion 5 and the like will be incomplete or torn. .
　次に、本発明に係る連結包装製品の製造方法の実施の形態について説明する。本実施の形態の連結包装製品の製造方法では、製造工程と、折り畳み工程と、規制工程と、包装工程と、接合工程と、切断工程とが実行される。図２に示すように、吸収性物品３は黒矢印のように搬送され、これらの工程はそれぞれ吸収性物品製造装置２０及び各ユニット１０Ａ～１０Ｅで順次実行される。図８～図１０は連結包装製品の製造方法を説明する図である。このうち、図８～図９は各製造工程での吸収性物品等の頂面を模式的に示し（図面の上側が搬送方向の上流側、下側が下流側）、図１０は接合工程での吸収性物品等の断面を模式的に示す（図面の右側が搬送方向の上流側、左側が下流側）。 Next, an embodiment of a method for manufacturing a linked packaged product according to the present invention will be described. In the method for manufacturing a linked packaged product according to the present embodiment, a manufacturing process, a folding process, a regulation process, a packaging process, a joining process, and a cutting process are executed. As shown in FIG. 2, the absorbent article 3 is conveyed as indicated by a black arrow, and these steps are sequentially executed by the absorbent article manufacturing apparatus 20 and the units 10A to 10E, respectively. 8 to 10 are diagrams for explaining a method of manufacturing a linked packaged product. 8 to 9 schematically show the top surfaces of absorbent articles and the like in each manufacturing process (the upper side of the drawing is the upstream side in the transport direction, the lower side is the downstream side), and FIG. 10 is the bonding process. A cross section of an absorbent article or the like is schematically shown (the right side of the drawing is the upstream side in the transport direction, and the left side is the downstream side).
　製造工程では、吸収性物品製造装置２０により、吸収性物品３が連続的に製造される。本実施の形態では、吸収性物品３は図８（Ａ）に示すようにパンツ型おむつであり、着用者の胴回りを覆う胴回り部３ａと、吸収体を含む股部３ｂとを備えている。股部３ｂは、腹側の部分３ｂ１の端部を胴回り部３ａの腹側面３ａ１に、背側の部分３ｂ２の端部を胴回り部３ａの背側面３ａ２にそれぞれ結合されている。 In the manufacturing process, the absorbent article 3 is continuously manufactured by the absorbent article manufacturing apparatus 20. In this Embodiment, the absorbent article 3 is a pants-type diaper as shown to FIG. 8 (A), and is provided with the waist part 3a which covers a wearer's waist part, and the crotch part 3b containing an absorber. In the crotch portion 3b, the end of the abdomen portion 3b1 is coupled to the abdomen side surface 3a1 of the waistline portion 3a, and the end portion of the back side portion 3b2 is coupled to the back side surface 3a2 of the waistline portion 3a.
　製造された吸収性物品３は、吸収性物品製造装置２０に直接的に接続された搬送ベルト２１により折り畳みユニット１０Ａに順次搬送される。その吸収性物品３のおむつは、下流側に股部３ｂが位置するように搬送される。このとき、吸収性物品製造装置２０により吸収性物品３を製造するときの処理量、すなわち単位時間当たりの製造個数と、搬送ベルト２１により吸収性物品３を搬送するときの処理量、すなわち単位時間当たりの搬送個数とは同じである。搬送ベルト２１の処理量は各ユニット１０Ａ～１０Ｅの処理量と同じであることから、吸収性物品製造装置２０と各ユニット１０Ａ～１０Ｅとは製造及び包装を連続的に行っているということができる。 The manufactured absorbent article 3 is sequentially transported to the folding unit 10A by the transport belt 21 directly connected to the absorbent article manufacturing apparatus 20. The diaper of the absorbent article 3 is conveyed so that the crotch portion 3b is located on the downstream side. At this time, the processing amount when the absorbent article 3 is manufactured by the absorbent article manufacturing apparatus 20, that is, the number of units manufactured per unit time, and the processing amount when the absorbent article 3 is transported by the transport belt 21, that is, unit time. The number of hits is the same. Since the processing amount of the conveyor belt 21 is the same as the processing amount of each unit 10A to 10E, it can be said that the absorbent article manufacturing apparatus 20 and each unit 10A to 10E are continuously manufactured and packaged. .
　折り畳み工程では、折り畳みユニット１０Ａにより、製造された吸収性物品３が折り畳まれる。すなわち、折り畳みユニット１０Ａでは、吸収性物品３が搬送ベルト２１、２２に挟まれて連続的に搬送され、吸収性物品３の搬送方向の中央部が搬送ロール２２ａ、２３ａの間の位置に来たタイミングで、吸収性物品３の厚さ方向にその中央部が折り板２４で突かれる。それにより、吸収性物品３が二つに折り畳まれながら搬送ロール２２ａ、２３ａ間に押し込まれて、一対の搬送ベルト２２、２３の間に挟み込まれる。二つに折り畳まれた吸収性物品３は一対の搬送ベルト２２、２３及び搬送ベルト２５により規制ユニット１０Ｂに順次搬送される。 In the folding step, the manufactured absorbent article 3 is folded by the folding unit 10A. That is, in the folding unit 10A, the absorbent article 3 is continuously conveyed while being sandwiched between the conveyor belts 21 and 22, and the central portion of the absorbent article 3 in the conveyance direction has come to a position between the conveyance rolls 22a and 23a. At the timing, the central portion of the absorbent article 3 is projected by the folded plate 24 in the thickness direction. Thereby, the absorbent article 3 is pushed in between the transport rolls 22a and 23a while being folded in two, and is sandwiched between the pair of transport belts 22 and 23. The absorbent article 3 folded in two is sequentially transported to the regulation unit 10B by the pair of transport belts 22, 23 and the transport belt 25.
　図８（Ａ）に示す吸収性物品３のおむつは、折り板２４が折り目ＦＬに当接することにより図８（Ｂ）に示すように折り畳まれる。この図の例では、折り目ＦＬは、胴回り部３ａの搬送方向の下流側の端部の近傍を通るように形成される。その後、吸収性物品３における下流側に折り目ＦＬが位置するように吸収性物品３は搬送される。吸収性物品３の横断方向の幅はＷ１であり、折り畳み工程の前と概ね同じである。吸収性物品３の上下方向の厚さはＨ１となり、折り畳みにより厚くなる。 The diaper of the absorbent article 3 shown in FIG. 8 (A) is folded as shown in FIG. 8 (B) when the folding plate 24 contacts the crease FL. In the example of this figure, the crease FL is formed so as to pass through the vicinity of the end portion on the downstream side in the transport direction of the waistline portion 3a. Thereafter, the absorbent article 3 is conveyed so that the crease FL is positioned on the downstream side of the absorbent article 3. The width of the absorbent article 3 in the transverse direction is W1, which is substantially the same as before the folding step. The thickness of the absorbent article 3 in the vertical direction is H1, which is increased by folding.
　規制工程では、規制ユニット１０Ｂにより、折り畳まれた吸収性物品３の大きさが規制される。すなわち、規制ユニット１０Ｂでは、搬送ベルト２５により搬送されてきた吸収性物品３が下側搬送ベルト３１により搬送方向に搬送される。このとき、一対の規制部材３３において、上流側の端部３３ａ（図４（Ａ））の内側横断距離ｄｓ１は、規制工程前の吸収性物品３の横断方向の幅Ｗ１よりも長く設定されているので、吸収性物品３は横断方向について空間３３ｓに容易に挿入される。そして、吸収性物品３が空間３３ｓ内を上流側から下流側へ搬送されるとき、吸収性物品３の横断方向の幅が規制部材３３で規制されて小さくなる。その結果、規制部材３３の下流側（図４（Ｂ））の端部３３ｂにおいて、吸収性物品３の横断方向の幅が、規制部材３３の下流側の端部３３ｂの内側横断距離ｄｅ１と同じになり、規制部材３３から搬出される。このように吸収性物品３は、一対の規制部材３３の間に通されることにより、図８（Ｃ）に示すように横断方向の幅がＷ２≒ｄｅｌとなり、規制工程の前の横断方向の幅Ｗ１よりも小さくなる。それにより、吸収性物品３内には横断方向に拡がろうとする反発力が生じる。 In the regulation process, the size of the folded absorbent article 3 is regulated by the regulation unit 10B. That is, in the regulation unit 10 </ b> B, the absorbent article 3 that has been transported by the transport belt 25 is transported by the lower transport belt 31 in the transport direction. At this time, in the pair of regulating members 33, the inner transverse distance ds1 of the upstream end portion 33a (FIG. 4A) is set longer than the transverse width W1 of the absorbent article 3 before the regulating step. Therefore, the absorbent article 3 is easily inserted into the space 33s in the transverse direction. And when the absorbent article 3 is conveyed in the space 33s from the upstream side to the downstream side, the width of the absorbent article 3 in the transverse direction is regulated by the regulating member 33 and becomes smaller. As a result, the width in the transverse direction of the absorbent article 3 is the same as the inner transverse distance de1 of the downstream end portion 33b of the regulating member 33 at the downstream end portion 33b of the regulating member 33 (FIG. 4B). And is carried out of the regulating member 33. In this way, the absorbent article 3 is passed between the pair of regulating members 33, so that the transverse width becomes W2≈del as shown in FIG. It becomes smaller than the width W1. Thereby, a repulsive force that spreads in the transverse direction is generated in the absorbent article 3.
　また、吸収性物品３の幅Ｗ２がｄｅ１であり、ｄｅ１≦第１の寸法Ｄ０１であることから、吸収性物品３を一対の規制部材３３の間を通過させることにより、吸収性物品３の横断方向の幅を第１の寸法Ｄ０１以下に容易に規制することができる。 Further, since the width W2 of the absorbent article 3 is de1, and de1 ≦ first dimension D01, the absorbent article 3 is crossed by passing the absorbent article 3 between the pair of regulating members 33. The width in the direction can be easily regulated to the first dimension D01 or less.
　規制ユニット１０Ｂでは、更に、下側搬送ベルト３１と上側搬送ベルト３２において、上流側の端部（図４（Ａ））の内側上下距離ｄｓ２は、規制工程前の吸収性物品３の上下方向の厚さＨ１よりも長くなるように設定されているので、吸収性物品３は上下方向についても空間３３ｓに容易に挿入される。そして、吸収性物品３が空間３３ｓ内を上流側から下流側へ搬送されるとき、吸収性物品３の上下方向の厚さが下側搬送ベルト３１と上側搬送ベルト３２で規制されて小さくなる。その結果、下側搬送ベルト３１と上側搬送ベルト３２の下流側（図４（Ｂ））の端部３３ｂにおいて、吸収性物品３の上下方向の厚さが、下側搬送ベルト３１と上側搬送ベルト３２の下流側の端部３３ｂの内側上下距離ｄｅ２と同じになり、下側搬送ベルト３１と上側搬送ベルト３２から搬出される。このように吸収性物品３は、下側搬送ベルト３１と上側搬送ベルト３２との間に通されることにより、上下方向の厚さがＨ２≒ｄｅ２となり、規制工程の前の上下方向の厚さＨ１よりも小さくなる。それにより、吸収性物品３内には上下方向に拡がろうとする反発力が生じる。 Further, in the regulation unit 10B, in the lower conveyance belt 31 and the upper conveyance belt 32, the inner vertical distance ds2 of the upstream end (FIG. 4A) is the vertical direction of the absorbent article 3 before the regulation process. Since it is set to be longer than the thickness H1, the absorbent article 3 can be easily inserted into the space 33s in the vertical direction. When the absorbent article 3 is transported from the upstream side to the downstream side in the space 33 s, the thickness of the absorbent article 3 in the vertical direction is restricted by the lower transport belt 31 and the upper transport belt 32 and becomes smaller. As a result, the thickness of the absorbent article 3 in the vertical direction at the end portion 33b on the downstream side (FIG. 4B) of the lower conveyance belt 31 and the upper conveyance belt 32 is the lower conveyance belt 31 and the upper conveyance belt. 32, which is the same as the inner vertical distance de 2 of the downstream end portion 33 b, and is carried out from the lower conveyance belt 31 and the upper conveyance belt 32. Thus, the absorbent article 3 is passed between the lower conveyance belt 31 and the upper conveyance belt 32, so that the vertical thickness becomes H2≈de2, and the vertical thickness before the regulation step. It becomes smaller than H1. Thereby, a repulsive force is generated in the absorbent article 3 to spread in the vertical direction.
　また、吸収性物品３の厚さＨ２がｄｅ２であり、ｄｅ２≦第２の寸法Ｄ０２であることから、吸収性物品３を下側搬送ベルト３１と上側搬送ベルト３２との間に通過させることにより、吸収性物品３の厚さを第２の寸法Ｄ０２以下に容易に規制することができる。 Further, since the thickness H2 of the absorbent article 3 is de2, and de2 ≦ second dimension D02, the absorbent article 3 is passed between the lower conveyance belt 31 and the upper conveyance belt 32. The thickness of the absorbent article 3 can be easily regulated to the second dimension D02 or less.
　包装工程では、包装ユニット１０Ｃにより、大きさを規制された吸収性物品３が筒状の連続シートで包装される。すなわち、搬送方向に第１の弱め線８を有する連続シート４ａは下側搬送ベルト３１よりも下方側から折り曲げ部材４３に供給され、搬送方向に搬送されつつ、折り曲げ部材４３により横断方向の両側端縁部を持ち上げられて、その両側端縁部を重ね合わされる。それにより搬送方向に延びる重なり部分を有する筒状の連続シート４ｂが形成され、横断方向の内側の寸法は、第１の寸法Ｄ０１となり、上下方向の内側の寸法は、第２の寸法Ｄ０２となる。一方、規制ユニット１０Ｂから搬送されてくる吸収性物品３は規制ユニット１０Ｂで幅がＷ２≒ｄｅ１≦Ｄ０１で、厚さがＨ２≒ｄｅ２≦Ｄ０２に規制されている。したがって、その規制された吸収性物品３は、折り曲げ部材４３内で筒状に形成されつつある連続シート４ｂへ容易に挿入される。その結果、吸収性物品３を内包した筒状の連続シート４ｂが形成される。 In the packaging process, the absorbent article 3 whose size is regulated is packaged by a cylindrical continuous sheet by the packaging unit 10C. That is, the continuous sheet 4a having the first weakening line 8 in the transport direction is supplied to the folding member 43 from the lower side of the lower transport belt 31 and is transported in the transport direction, while being folded in the transverse direction by the folding member 43. The edges are lifted and their side edges are overlapped. As a result, a cylindrical continuous sheet 4b having an overlapping portion extending in the transport direction is formed, the inner dimension in the transverse direction is the first dimension D01, and the inner dimension in the vertical direction is the second dimension D02. . On the other hand, the absorbent article 3 conveyed from the regulation unit 10B is regulated by the regulation unit 10B so that the width is W2≈de1 ≦ D01 and the thickness is H2≈de2 ≦ D02. Therefore, the regulated absorbent article 3 is easily inserted into the continuous sheet 4 b that is being formed into a cylindrical shape within the bending member 43. As a result, a cylindrical continuous sheet 4b including the absorbent article 3 is formed.
　吸収性物品３を内包した筒状の連続シート４ｂは、搬送ベルト４５により搬送方向に搬送されつつ、縦シール器４４により筒状の連続シート４ｂ上の上述の重なり部分をシールされ、縦シール部分６（図１）が形成される。それにより、筒状の連続シート４ｂは横断方向の内側の寸法が概ね第１の寸法Ｄ０１であり、上下方向の内側の寸法が概ね第２の寸法Ｄ０２である形状に保持される。このとき、吸収性物品３のおむつには横断方向や上下方向に拡がろうとする反発力が生じており、図９（Ａ）に示すように筒状の連続シート４ｂを内側から押し拡げるように突っ張らせている。したがって、吸収性物品３が筒状の連続シート４ｂにより周囲から押さえ付けられた状態となるので、それにより吸収性物品３を筒状の連続シート４ｂ内の所定の位置に位置決めできる。すなわち吸収性物品を筒状の連続シート内の所定の位置に固定できる。 The cylindrical continuous sheet 4b containing the absorbent article 3 is conveyed in the conveyance direction by the conveyance belt 45, and the above-described overlapping portion on the cylindrical continuous sheet 4b is sealed by the vertical sealer 44, and the vertical seal portion 6 (FIG. 1) is formed. Thereby, the cylindrical continuous sheet 4b is held in a shape in which the inner dimension in the transverse direction is approximately the first dimension D01, and the inner dimension in the vertical direction is approximately the second dimension D02. At this time, the diaper of the absorbent article 3 has a repulsive force that spreads in the transverse direction or the up-down direction, so that the cylindrical continuous sheet 4b is pushed and expanded from the inside as shown in FIG. It is stretched. Therefore, since the absorbent article 3 is pressed from the periphery by the cylindrical continuous sheet 4b, the absorbent article 3 can be positioned at a predetermined position in the cylindrical continuous sheet 4b. That is, the absorbent article can be fixed at a predetermined position in the cylindrical continuous sheet.
　接合工程では、吸収性物品３を内包する筒状の連続シートにおける吸収性物品の前後が接合されて包装品連結体９が形成される。すなわち、吸収性物品３を内包した筒状の連続シート４ｂは一対の搬送ベルト５１、５２の間に把持されつつ、搬送方向に横シール器５３まで更に搬送される。筒状の連続シート４ｂにおける互いに隣り合う吸収性物品３同士の間の部分が横シール器５３の一対のロール５４、５５の押圧部材５４ａ、５５ａにより押圧されて挟み込まれる。それにより、挟まれた箇所において、図９（Ｂ）に示すように、搬送方向の下流側から順にパターン７１により空気抜き穴７０が形成され（空気抜き穴形成工程）、パターン７２により横シール部分５が形成され（横接合部形成工程）、パターン７３により第１の弱め線７が形成され（切り離し穴形成工程）、パターン７２により横シール部分５が形成され（横接合部形成工程）、パターン７１により空気抜き穴７０が形成される（空気抜き穴形成工程）。それにより、包装品連結体９が形成される。このとき、吸収性物品３のおむつは、図９（Ｂ）に示すように包装品連結体９の各包装品２を内側から押し拡げるように突っ張らせている。 In the joining step, the front and back of the absorbent article in the cylindrical continuous sheet containing the absorbent article 3 are joined to form the packaged article assembly 9. That is, the cylindrical continuous sheet 4b including the absorbent article 3 is further conveyed to the horizontal sealer 53 in the conveyance direction while being held between the pair of conveyance belts 51 and 52. A portion between the absorbent articles 3 adjacent to each other in the cylindrical continuous sheet 4 b is pressed and sandwiched between the pressing members 54 a and 55 a of the pair of rolls 54 and 55 of the horizontal sealer 53. As a result, as shown in FIG. 9B, the air vent hole 70 is formed by the pattern 71 in order from the downstream side in the conveying direction at the sandwiched portion (air vent hole forming step), and the horizontal seal portion 5 is formed by the pattern 72. The first weakening line 7 is formed by the pattern 73 (separation hole forming process), the horizontal seal portion 5 is formed by the pattern 72 (lateral joint forming process), and the pattern 71 is formed. The air vent hole 70 is formed (air vent hole forming step). Thereby, the packaged article coupling body 9 is formed. At this time, as shown in FIG. 9B, the diaper of the absorbent article 3 is stretched so that each packaged product 2 of the packaged product coupling body 9 is expanded from the inside.
　本実施の形態では、空気抜き穴７０の形成（空気抜き穴形成工程）、横シール部分５の形成（横接合部形成工程）及び第１の弱め線７の形成（切り離し穴形成工程）は、同一の一対の押圧部材５４ｓ、５５ｓにより一度に実施されている。したがって、その空気抜き穴形成工程は、横接合部形成工程及び切り離し穴形成工程と共に実行される、ということができる。 In the present embodiment, the formation of the air vent hole 70 (air vent hole forming process), the formation of the lateral seal portion 5 (lateral joint forming process) and the formation of the first weakening line 7 (separation hole forming process) are the same. A pair of pressing members 54s and 55s are used at one time. Therefore, it can be said that the air vent hole forming step is executed together with the lateral joint forming step and the separation hole forming step.
　ここで、筒状の連続シート４ｂにおける互いに隣り合う吸収性物品３同士の間の部分が押圧部材５４ａ、５５ａにより押圧されると、筒状の連続シート４ｂの当該部分の容積が減少するため、当該部分の空気８０、すなわち図１０（Ａ）における吸収性物品３の下流側の空気８０は余剰となる。そのため、余剰となった空気８０を排出する必要がある。余剰の空気８０を排出する場所の一つとしては吸収性物品３の上流側があるが、吸収性物品３に妨げられて、すべての余剰の空気８０を排出することは困難である。そうなると、余剰の空気８０の逃げ場が無くなり筒状の連続シート４ｂが膨らみ過ぎて、横シール部分５の接合が不完全になったり、一度形成された横シール部分５が破れたりするおそれがある。しかし、本発明では、図１０（Ｂ）に示すように、筒状の連続シート４ｂには、搬送方向の下流側の横シール部分５と吸収性物品３の下流側の端部との間の箇所に空気抜け穴７０を形成しているので、その空気抜け穴７０から余剰の空気８０を排出することができる。それにより、筒状の連続シート４ｂが膨らみ過ぎて、横シール部分５の接合が不完全になったり、破れたりすることを防止できる。 Here, when the portion between the absorbent articles 3 adjacent to each other in the cylindrical continuous sheet 4b is pressed by the pressing members 54a and 55a, the volume of the portion of the cylindrical continuous sheet 4b decreases. The air 80 of the said part, ie, the air 80 of the downstream of the absorbent article 3 in FIG. 10 (A) becomes surplus. Therefore, it is necessary to discharge the excess air 80. One place where the excess air 80 is discharged is upstream of the absorbent article 3, but it is difficult for the absorbent article 3 to discharge all the excess air 80 because it is blocked by the absorbent article 3. If it becomes so, the escape space of the excess air 80 may be lost, the cylindrical continuous sheet 4b may swell too much, and the horizontal seal portion 5 may be incompletely joined, or the horizontal seal portion 5 once formed may be broken. However, in the present invention, as shown in FIG. 10 (B), the cylindrical continuous sheet 4 b is provided between the lateral seal portion 5 on the downstream side in the conveying direction and the downstream end portion of the absorbent article 3. Since the air hole 70 is formed at the location, the excess air 80 can be discharged from the air hole 70. Thereby, it can prevent that the cylindrical continuous sheet 4b swells too much, and joining of the horizontal seal | sticker part 5 becomes incomplete or torn.
　更に、筒状の連続シート４ｂにおける吸収性物品３を挟んで押圧された部分と反対側の部分が更に次の押圧部材５４ａ、５５ａにより押圧されると、筒状の連続シート４ｂの当該部分の容積が減少するため、当該部分の空気８０、すなわち図１０（Ｂ）における吸収性物品３の上流側の空気８０は余剰となる。そのため、筒状の連続シート４ｂが膨らみ過ぎて、横シール部分５の接合が不完全になったり、破れたりするおそれがある。しかし、本発明では、図１０（Ｃ）に示すように、筒状の連続シート４ｂには、搬送方向の上流側の横シール部分５と吸収性物品３の上流側の端部との間の箇所に空気抜け穴７０を形成しているので、その空気抜け穴７０から余剰の空気８０を排出することができる。それにより、筒状の連続シート４ｂから形成された包装袋４が膨らみ過ぎて、横シール部分５の接合が不完全になったり、破れたりすることを防止できる。また、この場合、下流側の空気抜け穴７０からも空気８０を排出できるので、より確実に横シール部分５の接合を保護できる。 Furthermore, when the part on the opposite side to the part pressed across the absorbent article 3 in the cylindrical continuous sheet 4b is further pressed by the next pressing members 54a and 55a, the part of the cylindrical continuous sheet 4b Since the volume decreases, the air 80 in that portion, that is, the air 80 upstream of the absorbent article 3 in FIG. 10B becomes redundant. Therefore, the cylindrical continuous sheet 4b may swell too much, and the joining of the lateral seal portion 5 may be incomplete or torn. However, in the present invention, as shown in FIG. 10 (C), the cylindrical continuous sheet 4b has a space between the upstream side seal portion 5 and the upstream end of the absorbent article 3 in the conveying direction. Since the air hole 70 is formed at the location, the excess air 80 can be discharged from the air hole 70. Thereby, it can prevent that the packaging bag 4 formed from the cylindrical continuous sheet 4b expands too much, and joining of the horizontal seal | sticker part 5 becomes incomplete or torn. Further, in this case, since the air 80 can be discharged also from the air vent hole 70 on the downstream side, the joining of the lateral seal portion 5 can be more reliably protected.
　空気抜き穴７０の個数は排出されるべき空気の量と空気抜き穴７０の大きさとの関係で、一個であってもよいし、本実施の形態のように複数であってもよい。複数の場合、１個当たりの空気抜き穴７０の大きさを小さくでき、外部からの異物の侵入をより確実に防止できると共に、横接合部形成工程のときに余剰の空気をより確実に多量に排出できて好ましい。 The number of the air vent holes 70 may be one or a plurality as in the present embodiment, depending on the relationship between the amount of air to be discharged and the size of the air vent holes 70. In the case of a plurality, the size of the air vent hole 70 per piece can be reduced, the entry of foreign matter from the outside can be prevented more reliably, and excessive air can be discharged more reliably during the lateral joint forming process. This is preferable.
　本実施の形態では、横接合部形成工程の前の工程（空気抜き穴形成工程）は、所定の空気抜き穴７０が設けられた筒状の連続シー４ｂを横接合部形成工程へ供給する供給工程ということができる。ただし、所定の空気抜き穴７０は、筒状の連続シート４ｂにおける吸収性物品３の搬送方向の上流側の端部に対応する箇所と筒状の連続シート４ｂにおける該吸収性物品３よりも上流側の横シール部分５が形成される箇所との間、及び、筒状の連続シート４ｂにおける該吸収性物品３の搬送方向の下流側の端部に対応する箇所と筒状の連続シートにおける該吸収性物品３よりも下流側の横シール部分５が形成される箇所との間、のうちの少なくとも一方に設けられている。 In the present embodiment, the step (air vent hole forming step) before the horizontal joint forming step is referred to as a supplying step of supplying the cylindrical continuous sea 4b provided with the predetermined air vent hole 70 to the horizontal joint forming step. be able to. However, the predetermined air vent hole 70 is located on the upstream side of the absorbent article 3 in the cylindrical continuous sheet 4b and at a location corresponding to the upstream end of the absorbent article 3 in the transport direction of the cylindrical continuous sheet 4b. Between the portion where the horizontal seal portion 5 is formed and the portion corresponding to the downstream end of the absorbent article 3 in the conveying direction of the cylindrical continuous sheet 4b and the absorption in the cylindrical continuous sheet. It is provided in at least one of the locations where the horizontal seal portion 5 on the downstream side of the property article 3 is formed.
　ここで、空気抜き穴７０の形成と横シール部分５の形成とが搬送方向に互いに離れた位置で実行される場合、空気抜き穴７０が形成された後、筒状の連続シート４ｂが搬送される間に搬送方向の微妙な位置ずれが生じて、空気抜き穴７０と横シール部分５との位置関係が乱れて、例えば空気抜け穴７０と横シール部分５とが重なってしまい、空気抜け穴７０が実質的に形成されない状態が発生し得る。したがって、その場合にはその状態が発生しないように、搬送方向の位置ずれの調整に手間と時間が掛かる。しかし本実施の形態では、空気抜き穴７０の形成は横シール部分５の形成と共に実行されるので、空気抜き穴７０と横シール部分５との位置関係を所望の位置関係により容易に維持することができる。すなわち、搬送中の筒状の連続シート４ｂ上において空気抜き穴７０と横シール部分５との位置合わせが不要とすることができる。 Here, in the case where the formation of the air vent hole 70 and the formation of the lateral seal portion 5 are performed at positions separated from each other in the transport direction, after the air vent hole 70 is formed, the cylindrical continuous sheet 4b is being transported. As a result, a slight positional shift occurs in the conveying direction, and the positional relationship between the air vent hole 70 and the lateral seal portion 5 is disturbed. For example, the air vent hole 70 and the lateral seal portion 5 overlap each other. A non-formed state may occur. Therefore, in this case, it takes time and effort to adjust the positional deviation in the transport direction so that the state does not occur. However, in the present embodiment, since the formation of the air vent hole 70 is executed together with the formation of the lateral seal portion 5, the positional relationship between the air vent hole 70 and the lateral seal portion 5 can be easily maintained by a desired positional relationship. . That is, it is not necessary to align the air vent hole 70 and the lateral seal portion 5 on the cylindrical continuous sheet 4b being conveyed.
　空気抜き穴７０は、筒状の連続シート４ｂの上下方向の上側の側面４ｂ１又は下側の側面４ｂ２に形成されることが好ましい。それにより、横接合部形成工程にて筒状の連続シート４ｂを上下方向に挟むときに空気は反作用により上下方向に移動し易いので、第２の弱め線８が破断する前に余剰の空気を空気抜き穴から容易に排出することができる。特に、本実施の形態のように筒状の連続シート４ｂの第２の弱め線８と同じ側面、すなわち上下方向の上側の側面４ｂ１における第２の弱め線８の横断方向の両側にそれぞれ形成されることが好ましい。それにより、第２の弱め線８が破断する前に、包装袋４内で余剰となった空気を空気抜き穴７０から多量かつ早期に逃がすことができる。 The air vent hole 70 is preferably formed on the upper side surface 4b1 or the lower side surface 4b2 in the vertical direction of the cylindrical continuous sheet 4b. As a result, when the cylindrical continuous sheet 4b is sandwiched in the vertical direction in the horizontal joint forming step, air easily moves in the vertical direction due to the reaction, so that excess air is removed before the second weakening line 8 breaks. It can be easily discharged from the air vent hole. In particular, it is formed on the same side surface as the second weakening line 8 of the cylindrical continuous sheet 4b as in the present embodiment, that is, on both sides in the transverse direction of the second weakening line 8 on the upper side surface 4b1 in the vertical direction. It is preferable. Thereby, before the 2nd weakening line 8 breaks, the excess air in the packaging bag 4 can be escaped from the air vent hole 70 in a large amount and at an early stage.
　また、空気抜き穴７０は、本実施の形態のように筒状の連続シート４ｂにおける上下方向の上側の側面４ｂ１に、横シール部分５に隣接して横断方向に沿って形成されることが好ましい。それにより、横シール部分５を形成するときに包装袋４内の空気を早期かつ確実に逃がすことができる。なお、空気抜き穴７０は、横シール部分５に隣接して横断方向に沿って複数個形成されていれば、筒状の連続シート４ｂにおける上下方向の下側の側面４ｂ２に形成されていてもよい。 Also, the air vent hole 70 is preferably formed in the transverse direction adjacent to the lateral seal portion 5 on the upper side surface 4b1 in the vertical direction of the cylindrical continuous sheet 4b as in the present embodiment. Thereby, when forming the horizontal seal | sticker part 5, the air in the packaging bag 4 can be escaped early and reliably. The air vent hole 70 may be formed on the lower side surface 4b2 in the vertical direction of the cylindrical continuous sheet 4b as long as a plurality of air vent holes 70 are formed adjacent to the horizontal seal portion 5 along the transverse direction. .
　また、空気抜き穴７０は、本実施の形態のように筒状の連続シート４ｂにおける上下方向の上側の側面４ｂ１に、横断方向に沿って一方の端部から他方の端部まで形成されることが好ましい。その理由は以下のとおりである。すなわち、吸収性物品３の前後に横シール部分５を形成して包装品２を形成するとき、包装袋４内の空気は横断方向の全体に亘って搬送方向に流れる。そこで、空気抜き穴７０を、筒状の連続シート４ｂにおける上下方向の上側の側面４ｂ１に、横断方向に沿って一方の端部から他方の端部まで、すなわち横断方向の全体に亘って複数個形成することで、包装袋４内の空気を効率的かつ確実に空気抜き穴７０から逃がすことができる。なお、空気抜き穴７０は、横断方向に沿って一方の端部から他方の端部まで複数個形成されていれば、筒状の連続シート４ｂにおける上下方向の下側の側面４ｂ２に形成されていてもよい。 Moreover, the air vent hole 70 may be formed from one end to the other end along the transverse direction on the upper side surface 4b1 in the vertical direction of the cylindrical continuous sheet 4b as in the present embodiment. preferable. The reason is as follows. That is, when forming the package 2 by forming the lateral seal portions 5 before and after the absorbent article 3, the air in the packaging bag 4 flows in the transport direction over the entire transverse direction. Therefore, a plurality of air vent holes 70 are formed on the upper side surface 4b1 in the vertical direction of the cylindrical continuous sheet 4b from one end to the other end along the transverse direction, that is, across the entire transverse direction. By doing so, the air in the packaging bag 4 can be escaped from the air vent hole 70 efficiently and reliably. If a plurality of air vent holes 70 are formed from one end to the other end along the transverse direction, the air vent hole 70 is formed on the lower side surface 4b2 in the vertical direction of the cylindrical continuous sheet 4b. Also good.
　また、空気抜き穴７０は、本実施の形態のように筒状の連続シート４ｂの縦シール部分６と同じ面、すなわち上下方向の上側の側面４ｂ１に形成されることが好ましい。その理由は以下のとおりである。すなわち、縦シール部分６の接合は接合直後では破断し易いため、吸収性物品３の前後に横シール部分５を形成して包装品２を形成するとき、包装袋４内で余剰となった空気の逃げ場が無くなり包装袋４が膨らみ過ぎて、一度形成された縦シール部分６が破れるおそれがある。そこで、空気抜き穴７０を、筒状の連続シート４ｂの縦シール部分６と同じ面、すなわち上下方向の上側の側面４ｂ１に形成することで、縦シール部分６の接合を破断させることなく、包装袋４内の空気を空気抜き穴７０から逃がすことができる。 Further, the air vent hole 70 is preferably formed on the same surface as the vertical seal portion 6 of the cylindrical continuous sheet 4b as in the present embodiment, that is, the upper side surface 4b1 in the vertical direction. The reason is as follows. That is, since the joining of the vertical seal portion 6 is easy to break immediately after joining, when the package 2 is formed by forming the transverse seal portion 5 before and after the absorbent article 3, the excess air in the packaging bag 4 There is a risk that the evacuation site will disappear and the packaging bag 4 will swell too much, and the vertical seal portion 6 once formed may be broken. Therefore, by forming the air vent hole 70 on the same surface as the vertical seal portion 6 of the cylindrical continuous sheet 4b, that is, the upper side surface 4b1 in the vertical direction, the packaging bag can be broken without breaking the vertical seal portion 6. 4 can escape from the air vent hole 70.
　また、空気抜き穴７０は、本実施の形態のように縦シール部分６と交差するように形成されていることが好ましい。それにより、空気抜き穴７０が縦シール部分６上及びその近傍に形成されて、より確実に縦シール部分６が破れることを防止できる。 Further, it is preferable that the air vent hole 70 is formed so as to intersect the vertical seal portion 6 as in the present embodiment. Thereby, the air vent hole 70 is formed on the vertical seal portion 6 and in the vicinity thereof, and the vertical seal portion 6 can be prevented from being broken more reliably.
　また、空気抜き穴７０は、筒状の連続シート４ｂにおける上下方向の上側の側面４ｂ１及び下側の側面４ｂ２の両方に形成されることが好ましい。それにより、筒状の連続シート４ｂの両側面の空気抜き穴７０からより多くの空気を逃がすことができる。 Moreover, it is preferable that the air vent hole 70 is formed on both the upper side surface 4b1 and the lower side surface 4b2 in the vertical direction of the cylindrical continuous sheet 4b. Thereby, more air can escape from the air vent holes 70 on both side surfaces of the cylindrical continuous sheet 4b.
　また、本実施の形態では、横シール部分５の形成に伴って筒状の連続シート４ｂ内の空気の一部が上流側へ流れていっても、吸収性物品３が位置決めされているので、上流側の筒状の連続シート４ｂ内の吸収性物品３の位置がずれ難くなる。それにより、その後の横シール部分５の形成において筒状の連続シート４ｂ内の吸収性物品３が横シール部分５に挟まれてしまう、という事態を防止できる。 Further, in the present embodiment, the absorbent article 3 is positioned even if a part of the air in the cylindrical continuous sheet 4b flows upstream with the formation of the lateral seal portion 5, The position of the absorbent article 3 in the upstream cylindrical continuous sheet 4b becomes difficult to shift. Thereby, the situation that the absorbent article 3 in the cylindrical continuous sheet 4b will be pinched | interposed into the horizontal seal part 5 in subsequent formation of the horizontal seal part 5 can be prevented.
　続いて、切断工程では、包装品連結体９が包装品２の所定個数ごとに切断・分割されて連結包装製品１が形成される。すなわち、包装品連結体９が一対の搬送ベルト６１、６２の間に把持されつつ搬送方向に搬送され、一対のローラ６４、６５の間に把持されつつ搬送される。包装品連結体９を切断すべきでないときには、ローラ６４、６５は搬送ベルト６１、６２とほぼ同じ速度で包装品連結体９を搬送する。これに対し、包装品連結体９を切断すべきときには、ローラ６４、６５は搬送ベルト６１、６２よりも高速度で包装品連結体９を搬送する。その結果、包装品連結体９の上流側部分が搬送ベルト６１、６２により把持されているので、包装品連結体９が第１の弱め線７に沿って切断される。このようにして、所定数の包装品２が連結された連結包装製品１が形成される。 Subsequently, in the cutting step, the packaged product assembly 9 is cut and divided into a predetermined number of the packaged products 2 to form the linked packaged product 1. That is, the packaged article assembly 9 is conveyed in the conveying direction while being held between the pair of conveying belts 61 and 62, and is conveyed while being held between the pair of rollers 64 and 65. When the packaged article coupling body 9 is not to be cut, the rollers 64 and 65 convey the packaged article coupling body 9 at substantially the same speed as the conveyor belts 61 and 62. On the other hand, when the packaged article coupling body 9 is to be cut, the rollers 64 and 65 convey the packaged article coupling body 9 at a higher speed than the conveyor belts 61 and 62. As a result, the upstream portion of the packaged article coupling body 9 is gripped by the conveyor belts 61 and 62, and the packaged article coupling body 9 is cut along the first weakening line 7. In this way, a linked packaged product 1 in which a predetermined number of packaged products 2 are linked is formed.
　連結包装製品１は一対の搬送ベルト６６、６７の間に把持されつつ、搬送方向に搬送され、連結包装製品１を梱包する梱包装置まで搬送される。 The linked packaged product 1 is conveyed in the conveying direction while being gripped between the pair of conveying belts 66 and 67, and is conveyed to a packing device for packing the linked packaged product 1.
　以上のようにして、連結包装製品１が製造される。 As described above, the linked packaged product 1 is manufactured.
　本発明では、搬送された筒状の連続シート４ｂには横シール部分５が形成されるべき箇所の近くに空気抜き穴７０が形成されている。そのため、筒状の連続シート４ｂの吸収性物品３の前後に横シール部分５を形成して包装品２を形成するとき、包装袋４内に収まりきれない余剰の空気８０を空気抜き穴７０から排出することができる。それにより、包装袋４内で空気の逃げ場が無くなり包装袋４が膨らみ過ぎて、横シール部分５や縦シール部分７などの接合が不完全になったり、破れたりするおそれがなくなる。 In the present invention, an air vent hole 70 is formed in the transported cylindrical continuous sheet 4b near the portion where the lateral seal portion 5 is to be formed. Therefore, when forming the package 2 by forming the lateral seal portions 5 before and after the absorbent article 3 of the cylindrical continuous sheet 4b, excess air 80 that cannot be stored in the packaging bag 4 is discharged from the air vent hole 70. can do. As a result, there is no risk of air escaping in the packaging bag 4, and the packaging bag 4 swells too much, resulting in incomplete or broken joining of the horizontal seal portion 5 and the vertical seal portion 7.
　なお、空気抜き穴７０は、本実施の形態のように包装品２の両端の横シール部分５それぞれに対応して形成されることが、余剰の空気を確実に排気する観点で好ましいが、本発明はそれに限定されるものでは無い。すなわち、空気抜き穴７０の大きさや位置や形状などにより余剰の空気を確実に排気できるのであれば、包装品２の両端の横シール部分５のいずれか一方のみに対応して形成してもよい。その場合、包装品２形成される穴が少なくなるので、包装袋４の強度を相対的に高くできる。 In addition, although it is preferable that the air vent hole 70 is formed corresponding to each of the lateral seal portions 5 at both ends of the packaged product 2 as in the present embodiment, it is preferable from the viewpoint of exhausting excess air reliably. Is not limited to this. That is, as long as excess air can be reliably exhausted depending on the size, position, shape, and the like of the air vent hole 70, it may be formed corresponding to only one of the lateral seal portions 5 at both ends of the package 2. In that case, since the holes formed in the packaged product 2 are reduced, the strength of the packaging bag 4 can be relatively increased.
　上述されるように、本発明では、包装工程において、吸収性物品３を筒状の連続シート４ｂ内の所定の位置に位置決めできる。すなわち吸収性物品３を筒状の連続シート４ｂ内の所定の位置に固定できる。そして、本発明では、その後の接合工程において、包装袋４に空気抜き穴７０を設けて余剰の空気８０を包装袋４から排出するので、包装袋４が膨らみ過ぎることが無くなり、よって吸収性物品３の周囲に余剰空間が発生しなくなる。それにより、包装袋４内面と吸収性物品３とが密に接触した状態、すなわち位置決めされた状態を維持できる。その結果、吸収性物品３が包装袋４内で動き難くなるので、製造された連結包装製品１においても吸収性物品３が包装袋５内で動き難くなる。それにより、連結包装製品１をダンボール箱のような梱包箱に詰め込むとき、包装袋４内で吸収性物品３のずれがほとんどないため、包装品２を梱包箱内に容易に整列させて配置することができる。それゆえ、輸送などで梱包箱が揺さぶられても、梱包箱内で包装品２の配置が乱され難くなるので、包装品２の一部が変形したり押し潰されたりして吸収性物品３の吸収体が変形して吸収力が低下する、ということを防止できる。 As described above, in the present invention, in the packaging process, the absorbent article 3 can be positioned at a predetermined position in the cylindrical continuous sheet 4b. That is, the absorbent article 3 can be fixed at a predetermined position in the cylindrical continuous sheet 4b. In the present invention, in the subsequent joining step, the air bag 70 is provided with the air vent hole 70 and the excess air 80 is discharged from the packaging bag 4, so that the packaging bag 4 does not swell excessively, and thus the absorbent article 3. There will be no extra space around. Thereby, the state which the packing bag 4 inner surface and the absorbent article 3 contacted closely, ie, the state by which it was positioned, can be maintained. As a result, the absorbent article 3 is difficult to move in the packaging bag 4, and thus the absorbent article 3 is difficult to move in the packaging bag 5 even in the manufactured linked packaged product 1. Accordingly, when the linked packaged product 1 is packed in a packaging box such as a cardboard box, the absorbent article 3 is hardly displaced in the packaging bag 4, so that the packaged product 2 is easily aligned in the packaging box. be able to. Therefore, even if the packaging box is shaken by transportation or the like, the arrangement of the packaged product 2 is not easily disturbed in the packaging box, so that a part of the packaged product 2 is deformed or crushed and the absorbent article 3 It can be prevented that the absorbent body is deformed and the absorption power is reduced.
　上記の実施の形態では、上側搬送ベルト３２（ガイド板でも可）で吸収性物品３の上下方向の厚さを規制しているが、本実施の形態はこの例に限定されるものでは無い。例えば、吸収性物品３の上下方向の厚さやそのばらつきが小さく、上下方向の規制が不要である場合、吸収性物品３の上下方向の厚さを規制しなくてもよい。その場合、上側搬送ベルト３２を省略できる。 In the above embodiment, the thickness of the absorbent article 3 in the vertical direction is regulated by the upper conveying belt 32 (or a guide plate is acceptable), but the present embodiment is not limited to this example. For example, when the vertical thickness of the absorbent article 3 and its variation are small and the vertical regulation is not necessary, the vertical thickness of the absorbent article 3 may not be regulated. In that case, the upper conveyance belt 32 can be omitted.
　上記の実施の形態では、吸収性物品３の折り畳みは１回だけであるが、本実施の形態はこの例に限定されるものでは無く、折り畳まなくてもよいし、２回以上折り畳んでもよい。２回以上折り畳む場合、上下方向の一番上になる折り目が吸収性物品３における下流側に位置するように吸収性物品３を搬送することが好ましい。それにより、吸収性物品３における折り目よりも先の部分が上側搬送ベルト３２により捲り上がることを抑制できる。 In the above embodiment, the absorbent article 3 is folded only once, but the present embodiment is not limited to this example, and may not be folded, or may be folded two or more times. In the case of folding twice or more, it is preferable to transport the absorbent article 3 so that the uppermost fold line is positioned on the downstream side of the absorbent article 3. Thereby, it is possible to suppress the portion of the absorbent article 3 ahead of the fold from being swung up by the upper conveyance belt 32.
　１　　連結包装製品
　２　　包装品
　３　　吸収性物品
　４　　包装袋
　４ａ　　連続シート
　４ｂ　　筒状の連続シート
　５　　横シール部分
　６　　縦シール部分
　７　　第１の弱め線
　８　　第２の弱め線
　７０　　空気抜き穴
　１０　　連結包装製品製造装置
　１０Ａ　　折り畳みユニット
　１０Ｂ　　規制ユニット
　１０Ｃ　　包装ユニット
　１０Ｄ　　接合ユニット
　１０Ｅ　　切断ユニット DESCRIPTION OF SYMBOLS 1 Linked packaging product 2 Packaged product 3 Absorbent article 4 Packaging bag 4a Continuous sheet 4b Cylindrical continuous sheet 5 Horizontal seal part 6 Vertical seal part 7 1st weakening line 8 2nd weakening line 70 Air vent hole 10 Consolidated packaging product Manufacturing apparatus 10A Folding unit 10B Control unit 10C Packaging unit 10D Joining unit 10E Cutting unit

Claims (11)

  1. 　搬送方向に搬送される筒状の連続シートに、前記搬送方向に並んだ複数の吸収性物品を内包した状態で、前記筒状の連続シートにおける各吸収性物品の前後をそれぞれ前記搬送方向に交差する横断方向に接合して横接合部を形成することにより、前記吸収性物品と前記吸収性物品を包装する包装袋とを含む包装品が複数個一方向に連結されてなる連結包装製品を製造する方法であって、
    　前記複数の吸収性物品を内包した前記筒状の連続シートであって、前記筒状の連続シートにおける吸収性物品の前記搬送方向の上流側の端部に対応する箇所と前記筒状の連続シートにおける該吸収性物品よりも上流側の前記横接合部が形成される箇所との間、及び、前記筒状の連続シートにおける該吸収性物品の前記搬送方向の下流側の端部に対応する箇所と前記筒状の連続シートにおける該吸収性物品よりも下流側の前記横接合部が形成される箇所との間、のうちの少なくとも一方に空気抜き穴が設けられた前記筒状の連続シートを供給する供給工程と、
    　供給された前記筒状の連続シートにおける互いに隣り合う吸収性物品同士の間の部分で、前記搬送方向及び前記横断方向に交差する上下方向の上側の側面と下側の側面とを挟んで接合して、前記横断方向に延在する前記横接合部を形成する横接合部形成工程と、
    　を備える、
    　連結包装製品の製造方法。     In a state where a plurality of absorbent articles arranged in the transport direction are included in a cylindrical continuous sheet transported in the transport direction, the front and back of each absorbent article in the cylindrical continuous sheet intersect with the transport direction, respectively. To produce a linked packaging product in which a plurality of packaging products including the absorbent article and a packaging bag for packaging the absorbent article are coupled in one direction by joining in a transverse direction to form a transverse joint portion A way to
    The cylindrical continuous sheet including the plurality of absorbent articles, wherein the cylindrical continuous sheet corresponds to an upstream end of the absorbent article in the transport direction and the cylindrical continuous sheet. And a portion corresponding to the downstream end portion of the absorbent article in the transport direction in the cylindrical continuous sheet. The cylindrical continuous sheet provided with an air vent hole in at least one of the cylindrical continuous sheet and the portion where the lateral joint portion downstream of the absorbent article is formed A supply process,
    The portion of the supplied cylindrical continuous sheet between the adjacent absorbent articles is joined with the upper side surface and the lower side surface in the vertical direction intersecting the transport direction and the transverse direction being sandwiched. A transverse joint forming step for forming the transverse joint extending in the transverse direction;
    Comprising
    A method for manufacturing linked packaging products.
  2. 　前記供給工程は、前記筒状の連続シートに前記空気抜き穴を形成する空気抜き穴形成工程を含み、
    　前記空気抜き穴形成工程は前記横接合部形成工程と共に実行される、
    　請求項１に記載の連結包装製品の製造方法。     The supplying step includes an air vent hole forming step of forming the air vent hole in the cylindrical continuous sheet,
    The air vent hole forming step is executed together with the lateral joint forming step.
    A method for producing a linked packaged product according to claim 1.
  3. 　前記筒状の連続シートの前記上下方向の上側又は下側の側面に、前記搬送方向に沿って延びる開封用の切断部又は薄肉部が設けられており、
    　前記空気抜き穴は、前記筒状の連続シートの前記上下方向の上側又は下側の側面に形成されている、
    　請求項１又は２に記載の連結包装製品の製造方法。     On the upper or lower side surface in the vertical direction of the cylindrical continuous sheet, a cutting part for opening or a thin part extending along the transport direction is provided,
    The air vent hole is formed on the upper or lower side surface in the vertical direction of the cylindrical continuous sheet.
    The manufacturing method of the connection packaging product of Claim 1 or 2.
  4. 　前記空気抜き穴は、前記筒状の連続シートにおける前記上下方向の上側又は下側の側面に複数形成されている、
    　請求項１乃至３のいずれか一項に記載の連結包装製品の製造方法。     A plurality of the air vent holes are formed on the upper or lower side surface in the vertical direction in the cylindrical continuous sheet.
    The manufacturing method of the connection packaging product as described in any one of Claims 1 thru | or 3.
  5. 　前記複数の空気抜き穴は、前記横接合部に隣接して前記横断方向に沿って形成されている、
    　請求項４に記載の連結包装製品の製造方法。     The plurality of air vent holes are formed along the transverse direction adjacent to the lateral joint.
    The manufacturing method of the connection packaging product of Claim 4.
  6. 　前記複数の空気抜き穴は、前記横断方向に沿って一方の端部から他方の端部まで形成されている、
    　請求項４又は５に記載の連結包装製品の製造方法。     The plurality of air vent holes are formed from one end to the other end along the transverse direction.
    A method for producing a linked packaged product according to claim 4 or 5.
  7. 　前記複数の吸収性物品を内包した前記筒状の連続シートを形成する包装工程を更に備え、
    　前記包装工程において、
    　　前記複数の吸収性物品を前記搬送方向に搬送する下側搬送ベルトに対して前記搬送方向の下流側に隣り合うように配設された折り曲げ部材に、前記下側搬送ベルトよりも下方側から連続シートを供給し、
    　　前記連続シートを前記搬送方向に搬送しつつ、前記折り曲げ部材により前記連続シートの前記横断方向の両側端縁部を持ち上げて筒状にし、前記搬送方向に連続的に接合して、前記筒状の連続シートにおける前記上下方向の上側の側面に、前記搬送方向に延在する縦接合部を形成し、
    　前記空気抜き穴は、前記筒状の連続シートにおける前記縦接合部が設けられた側面と同じ側面に形成されている、
    　請求項１乃至６のいずれか一項に記載の連結包装製品の製造方法。     Further comprising a packaging step of forming the cylindrical continuous sheet containing the plurality of absorbent articles,
    In the packaging process,
    Continuing from the lower side of the lower conveying belt to the bending member disposed adjacent to the downstream side of the conveying direction with respect to the lower conveying belt that conveys the plurality of absorbent articles in the conveying direction. Supply sheets,
    While transporting the continuous sheet in the transport direction, the folding member lifts both side edges in the transverse direction of the continuous sheet into a cylindrical shape, continuously joins in the transport direction, On the upper side surface in the up-down direction in the continuous sheet, a vertical joint extending in the transport direction is formed,
    The air vent hole is formed on the same side surface as the side surface provided with the longitudinal joint portion in the cylindrical continuous sheet.
    The manufacturing method of the connection packaging product as described in any one of Claims 1 thru | or 6.
  8. 　前記空気抜き穴は、前記縦接合部と交差するように複数形成されている、
    　請求項７に記載の連結包装製品の製造方法。     A plurality of the air vent holes are formed so as to intersect the longitudinal joint portion,
    A method for producing a linked packaged product according to claim 7.
  9. 　前記空気抜き穴は、前記筒状の連続シートにおける前記上下方向の上側の側面及び下側の側面の両方に形成されている、
    　請求項１乃至８のいずれか一項に記載の連結包装製品の製造方法。     The air vent hole is formed on both the upper side surface and the lower side surface in the vertical direction of the cylindrical continuous sheet.
    The manufacturing method of the connection packaging product as described in any one of Claims 1 thru | or 8.
  10. 　前記横接合部に、前記横断方向に沿って複数の切り離し穴を形成する切り離し穴形成工程と、
    　を更に備え、
    　前記筒状の連続シートにおける前記複数の切り離し穴の前記横断方向の長さ成分の合計が前記空気抜き穴の前記横断方向の長さ成分の合計よりも大きくなるように前記複数の切り離し穴及び前記空気抜き穴が形成されている、
    　請求項１乃至９のいずれか一項に記載の連結包装製品の製造方法。     A separation hole forming step of forming a plurality of separation holes along the transverse direction in the lateral joint portion;
    Further comprising
    The plurality of separation holes and the air vent so that the sum of the transverse length components of the plurality of separation holes in the cylindrical continuous sheet is larger than the sum of the transverse length components of the air vent holes. Holes are formed,
    The manufacturing method of the connection packaging product as described in any one of Claims 1 thru | or 9.
  11. 　前記筒状の連続シートが前記横接合部により区切られて形成された、複数の包装品が連結された包装品連結体を、搬送しながら所定数ごとに切断する切断工程を更に備え、
    　前記包装品連結体は、前記包装品連結体を切断する切断器の上流側及び下流側の少なくとも一方の、前記空気抜き穴を有する面の側に配置された搬送用のサクションベルトで吸引され固定されつつ、所定数ごとに切断される、
    　請求項１乃至１０のいずれか一項に記載の連結包装製品の製造方法。     The cylindrical continuous sheet is further divided by the lateral joint, and further includes a cutting step of cutting a predetermined number of packages while transporting a packaged product connected with a plurality of packages.
    The packaged article assembly is sucked and fixed by a transport suction belt disposed on the surface side having the air vent hole on at least one of the upstream side and the downstream side of a cutter for cutting the packaged article assembly. While being cut every predetermined number,
    The manufacturing method of the connection packaging product as described in any one of Claims 1 thru | or 10.
PCT/JP2015/084568 2015-12-09 2015-12-09 Method for producing connected packaged products WO2017098613A1 (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5011064Y1 (en) * 1974-02-18 1975-04-07
JPS57101790U (en) * 1980-12-16 1982-06-23
JPS5820605A (en) * 1981-07-17 1983-02-07 トキワ工業株式会社 Method of packing article to be packed
WO2002094678A1 (en) * 2001-05-24 2002-11-28 The Procter & Gamble Company Disposable absorbent articles contained in successively connected bags
JP2004168405A (en) * 2002-11-22 2004-06-17 Myojo Foods Co Ltd Packaging method for multipack package by gusset packaging
JP2011140344A (en) * 2010-01-08 2011-07-21 Unicharm Corp Continuous package for absorbent articles
WO2013031647A1 (en) * 2011-08-31 2013-03-07 ユニ・チャーム株式会社 Absorbent article packaging
WO2014024672A1 (en) * 2012-08-08 2014-02-13 ユニ・チャーム株式会社 Device and method for producing connected article of individual packaged articles for absorbent articles

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5011064Y1 (en) * 1974-02-18 1975-04-07
JPS57101790U (en) * 1980-12-16 1982-06-23
JPS5820605A (en) * 1981-07-17 1983-02-07 トキワ工業株式会社 Method of packing article to be packed
WO2002094678A1 (en) * 2001-05-24 2002-11-28 The Procter & Gamble Company Disposable absorbent articles contained in successively connected bags
JP2004168405A (en) * 2002-11-22 2004-06-17 Myojo Foods Co Ltd Packaging method for multipack package by gusset packaging
JP2011140344A (en) * 2010-01-08 2011-07-21 Unicharm Corp Continuous package for absorbent articles
WO2013031647A1 (en) * 2011-08-31 2013-03-07 ユニ・チャーム株式会社 Absorbent article packaging
WO2014024672A1 (en) * 2012-08-08 2014-02-13 ユニ・チャーム株式会社 Device and method for producing connected article of individual packaged articles for absorbent articles

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