JP2016097511A - Apparatus and method for manufacturing sheet fused body - Google Patents

Apparatus and method for manufacturing sheet fused body Download PDF

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Publication number
JP2016097511A
JP2016097511A JP2014233961A JP2014233961A JP2016097511A JP 2016097511 A JP2016097511 A JP 2016097511A JP 2014233961 A JP2014233961 A JP 2014233961A JP 2014233961 A JP2014233961 A JP 2014233961A JP 2016097511 A JP2016097511 A JP 2016097511A
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Japan
Prior art keywords
support member
sheet
side opening
member side
pressure
Prior art date
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Granted
Application number
JP2014233961A
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Japanese (ja)
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JP6420635B2 (en
Inventor
邦利 山田
Kunitoshi Yamada
邦利 山田
伸二 浜本
Shinji Hamamoto
伸二 浜本
拓郎 梁島
Takuo Yanajima
拓郎 梁島
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Kao Corp
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Kao Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8324—Joining or pressing tools pivoting around one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1648—Laser beams characterised by the way of heating the interface radiating the edges of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1654—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
    • B29C65/1661—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined scanning repeatedly, e.g. quasi-simultaneous laser welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1696—Laser beams making use of masks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/747—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using other than mechanical means
    • B29C65/7473—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using other than mechanical means using radiation, e.g. laser, for simultaneously welding and severing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/749—Removing scrap
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
    • B29C65/7879—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined said parts to be joined moving in a closed path, e.g. a rectangular path
    • B29C65/7882—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined said parts to be joined moving in a closed path, e.g. a rectangular path said parts to be joined moving in a circular path
    • B29C65/7885—Rotary turret joining machines, i.e. having several joining tools moving around an axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/002—Removing toxic gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/729—Textile or other fibrous material made from plastics
    • B29C66/7294—Non woven mats, e.g. felt
    • B29C66/72941—Non woven mats, e.g. felt coated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81463—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8221—Scissor or lever mechanisms, i.e. involving a pivot point
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83415—Roller, cylinder or drum types the contact angle between said rollers, cylinders or drums and said parts to be joined being a non-zero angle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83417—Roller, cylinder or drum types said rollers, cylinders or drums being hollow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1603—Laser beams characterised by the type of electromagnetic radiation
    • B29C65/1612—Infrared [IR] radiation, e.g. by infrared lasers
    • B29C65/1619—Mid infrared radiation [MIR], e.g. by CO or CO2 lasers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/137—Beaded-edge joints or bead seals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8226—Cam mechanisms; Wedges; Eccentric mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8242—Pneumatic or hydraulic drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8246—Servomechanisms, e.g. servomotors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/48—Wearing apparel
    • B29L2031/4871—Underwear
    • B29L2031/4878—Diapers, napkins

Abstract

PROBLEM TO BE SOLVED: To provide a manufacturing apparatus capable of manufacturing a sheet fused body having excellent flexibility and an excellent touch feeling of a seal edge part while effectively preventing inconvenience such as ignition due to resin fumes.SOLUTION: A sheet fused body manufacturing apparatus 20 according to the present invention comprises a support member 21 having a first surface 21a and a second surface 21b and supporting a sheet laminate 10 on the first surface 21a, an irradiation head 35 disposed on a second surface 21b side, and a pressure member 26 pressing the supported sheet laminate 10. The support member 21 includes a support member side opening part 27 allowing passage of an irradiated laser beam 30, a dust collection member 28 with a suction opening part 283 facing the support member side opening part 27, and a support member side air blow-out part 29 blowing out air to the support member side opening part 27. The pressure member 26 includes a pressure member side opening part 55 arranged to face the support member side opening part 27, and a pressure member side air blow-out part 59 blowing out air to the pressure member side opening part 55.SELECTED DRAWING: Figure 5

Description

本発明は、シート融着体の製造装置及び製造方法に関する。   The present invention relates to a sheet fusion product manufacturing apparatus and method.

従来、使い捨ておむつや生理用ナプキン等の吸収性物品の製造工程においては、重ね合わせたシートどうしの接合にヒートロール装置が汎用されている。また、他の接合方法として、レーザー光線を用いて溶着する方法も知られている。例えば特許文献１には、複数枚のシートが重ねられたシート積層体を、周面にレーザー光透過性部を有する回転ロールの該周面に沿った形状に変形させて搬送しながら、該シート積層体に対して該回転ロールの内側からレーザー光を照射し、該シート積層体内のシートどうしを融着させる方法が記載されている。   Conventionally, in a manufacturing process of absorbent articles such as disposable diapers and sanitary napkins, a heat roll apparatus is widely used for joining stacked sheets. As another bonding method, a method of welding using a laser beam is also known. For example, in Patent Document 1, a sheet laminate in which a plurality of sheets are stacked is deformed into a shape along the peripheral surface of a rotary roll having a laser light transmitting portion on the peripheral surface, and the sheet is conveyed. A method of irradiating the laminated body with laser light from the inside of the rotary roll to fuse the sheets in the laminated sheet is described.

特開２０１０−１８８６２９号公報JP 2010-188629 A

特許文献１に記載の装置においては、融着対象となるシート積層体は、回転ロールとベルトとの間に挟持された状態で搬送され、搬送されながらレーザー光の照射によって融着が行われる。融着時には、融着対象となるシート積層体から樹脂ヒューム等を含むガスが発生する場合がある。樹脂ヒュームは、固体物質の蒸気の凝固又は気体物質の化学反応によって生じた微小な固体粒子であることから、これが空気中に高濃度に滞留すると発火するおそれがある。また、発生したヒュームが、前記回転ロールやベルトに付着・堆積してこれらの部材を汚染し、その堆積物が製品に乗り移ることに起因して、不良品が発生するおそれがある。したがって、樹脂ヒュームを含むガスの局所的な排気が必要となる。しかし、特許文献１に記載の装置においては、シート積層体を回転ロールと非通気性のベルトとの間に挟んで搬送させることから、発生したガスを排気することが容易でない場合がある。   In the apparatus described in Patent Document 1, a sheet laminate to be fused is conveyed while being sandwiched between a rotating roll and a belt, and fusion is performed by irradiation with laser light while being conveyed. At the time of fusing, a gas containing resin fume may be generated from the sheet laminate to be fused. Resin fume is a fine solid particle generated by solidification of vapor of a solid substance or a chemical reaction of a gaseous substance, and there is a possibility that it will ignite if it stays in air at a high concentration. Further, the generated fume adheres to and accumulates on the rotating rolls and belts, contaminates these members, and the deposits are transferred to the product, which may cause defective products. Therefore, local exhaust of the gas containing resin fume is required. However, in the apparatus described in Patent Document 1, since the sheet laminate is conveyed while being sandwiched between a rotating roll and a non-breathable belt, it may not be easy to exhaust the generated gas.

したがって本発明は、前述した従来技術が有する欠点を解消し得るシート融着体の製造装置及び製造方法を提供することにある。   Accordingly, it is an object of the present invention to provide an apparatus and a method for manufacturing a sheet fusion body that can eliminate the above-described drawbacks of the prior art.

本発明は、複数枚のシートの縁部が重なった状態で融着したシール縁部を有するシート融着体の製造装置であって、第１面及びそれと反対側に位置する第２面を有し、少なくとも一部に樹脂材を含む複数枚のシートが重ねられた帯状のシート積層体をその長手方向にわたって該第１面上に支持する支持部材と、前記支持部材における前記第２面側に配置され、かつレーザー光を集光するレンズを有する照射ヘッドと、前記支持部材の前記第１面上に支持された前記シート積層体を加圧する加圧部材とを具備し、前記支持部材は、前記第２面側から照射されたレーザー光の通過可能な前記シート積層体の幅方向に長いスリット状の支持部材側開口部と、該支持部材側開口部から該第２面側に離間して配置され該支持部材側開口部に対向するように吸引開口部が形成された集塵部材と、該支持部材側開口部から該第２面側に離間して配置され該支持部材側開口部に向かって空気を吹き出す支持部材側空気吹出部とを有し、前記加圧部材は、前記支持部材側開口部の延びる方向と同方向に延びかつ該支持部材側開口部と対向配置される加圧部材側開口部と、該加圧部材側開口部に向かって空気を吹き出す加圧部材側空気吹出部とを有しているシート融着体の製造装置を提供するものである。   The present invention is an apparatus for manufacturing a sheet fusion body having a seal edge portion fused in a state where edges of a plurality of sheets are overlapped, and has a first surface and a second surface located on the opposite side. And a support member that supports a belt-like sheet stack in which a plurality of sheets including a resin material at least partially are stacked on the first surface over the longitudinal direction, and the second surface side of the support member. An irradiation head having a lens that is disposed and condensing a laser beam; and a pressure member that pressurizes the sheet laminate supported on the first surface of the support member, the support member comprising: A slit-like support member side opening that is long in the width direction of the sheet laminate through which the laser light irradiated from the second surface side can pass, and spaced apart from the support member side opening to the second surface side So as to face the opening on the support member side A dust collecting member in which a suction opening is formed, and a support member-side air blowing portion that is spaced apart from the support member-side opening to the second surface side and blows air toward the support member-side opening. The pressure member includes a pressure member side opening that extends in the same direction as the direction in which the support member side opening extends and is disposed to face the support member side opening; and the pressure member side opening An apparatus for producing a sheet fusion body having a pressure member-side air blowing portion that blows out air toward the surface is provided.

また、本発明は、複数枚のシートの縁部が重なった状態で融着したシール縁部を有するシート融着体の製造方法であって、第１面及びそれと反対側に位置する第２面を有する支持部材における該第１面上に、少なくとも一部に樹脂材を含む複数枚のシートが重ねられた帯状のシート積層体をその長手方向にわたって支持させ、該支持部材の該第１面上に支持された該シート積層体を加圧部材を用いて加圧し、前記支持部材における前記第２面側に配置され、かつレーザー光を集光するレンズを有する照射ヘッドから、該支持部材の該第１面上に加圧して支持された前記シート積層体に向けてレーザー光を照射する工程を有し、レーザー光を、前記支持部材に設けられた、前記シート積層体の幅方向に長いスリット状の支持部材側開口部に沿って該シート積層体に照射して、該シート積層体をその幅方向にわたって分断するのと同時に、この分断の縁部を重なった状態で融着して前記シール縁部を有するシート融着体を製造するとともに、分断によって生じたガスを、前記加圧部材側に配置された加圧部材側空気吹出部から空気を吹き出して前記支持部材の前記第２面側に飛ばし、該支持部材の第２面側に配置された集塵部材によって吸引し除去するシート融着体の製造方法を提供するものである。   Further, the present invention is a method for manufacturing a sheet fusion body having a seal edge portion fused in a state where the edges of a plurality of sheets are overlapped, the first surface and a second surface located on the opposite side thereof. On the first surface of the supporting member, a belt-shaped sheet laminate in which a plurality of sheets including a resin material at least partially is stacked is supported over the longitudinal direction, and the first surface of the supporting member is The sheet laminated body supported by the pressure member is pressurized using a pressure member, and is arranged on the second surface side of the support member, and from an irradiation head having a lens for condensing laser light, the support member A slit having a step of irradiating a laser beam toward the sheet laminate supported by pressurization on the first surface, the laser beam being provided on the support member and being long in the width direction of the sheet laminate Along the opening on the support member side Irradiating the sheet laminate to divide the sheet laminate in the width direction, and at the same time manufacture the sheet fusion body having the seal edge by fusing in a state where the edges of the division are overlapped In addition, the gas generated by the division is blown out to the second surface side of the support member by blowing out air from the pressurization member side air blowing portion disposed on the pressure member side, and the second surface of the support member The present invention provides a method for producing a sheet fusion product that is sucked and removed by a dust collecting member arranged on the side.

本発明によれば、樹脂ヒュームに起因する発火等の不都合を効果的に防止しつつ、シール縁部の柔軟性、肌触りに優れたシート融着体を製造することができる。   ADVANTAGE OF THE INVENTION According to this invention, the sheet | seat melt | fusion body excellent in the softness | flexibility of the seal edge part and the touch can be manufactured, preventing the troubles, such as ignition resulting from the resin fume, effectively.

図１は、本発明に従い製造されるシート融着体の一例としてのパンツ型使い捨ておむつを模式的に示す斜視図である。FIG. 1 is a perspective view schematically showing a pants-type disposable diaper as an example of a sheet fusion product manufactured according to the present invention. 図２は、図１のＩ−Ｉ線断面を模式的に示す断面図である。FIG. 2 is a cross-sectional view schematically showing a cross section taken along line II of FIG. 図３は、図１に示すおむつの展開かつ伸長状態を模式的に示す平面図である。FIG. 3 is a plan view schematically showing an unfolded and extended state of the diaper shown in FIG. 図４は、図１に示すおむつの製造における、おむつ連続体の製造工程を模式的に示す斜視図である。FIG. 4 is a perspective view schematically showing a manufacturing process of a diaper continuous body in the manufacture of the diaper shown in FIG. 図５は、本発明のシート融着体の製造装置の一実施形態としてのパンツ型使い捨ておむつの製造装置を模式的に示す斜視図である。FIG. 5 is a perspective view schematically showing a manufacturing apparatus for a pants-type disposable diaper as an embodiment of the manufacturing apparatus for a sheet fusion body of the present invention. 図６は、図５に示すパンツ型使い捨ておむつの製造装置における加圧部材を模式的に示す斜視図である。FIG. 6 is a perspective view schematically showing a pressure member in the manufacturing apparatus for the pants-type disposable diaper shown in FIG. 図７（ａ）は、図６におけるａ−ａ線断面図であり、図７（ｂ）は、図６におけるｂ−ｂ線断面図である。7A is a cross-sectional view taken along the line aa in FIG. 6, and FIG. 7B is a cross-sectional view taken along the line bb in FIG. 6. 図８は、図５に示す製造装置における、支持部材の回転軸を通る断面の構造を模式的に示す断面図である。FIG. 8 is a cross-sectional view schematically showing a cross-sectional structure passing through the rotation axis of the support member in the manufacturing apparatus shown in FIG. 図９は、支持部材の周面に沿って周回する加圧部材の揺動運動の状態を示す模式図である。FIG. 9 is a schematic diagram illustrating a state of the swinging motion of the pressure member that circulates along the peripheral surface of the support member. 図１０（ａ）ないし（ｃ）は、揺動過程状態にある加圧部材が加圧状態となるまでの状態を順次示す模式図である。FIGS. 10A to 10C are schematic views sequentially showing the state until the pressure member in the swinging process state is in a pressurized state. 図１１（ａ）ないし（ｃ）は、それぞれ、図５に示すレーザー式接合装置を用いておむつ連続体（帯状の外装体）を分断するのと同時にサイドシール部（シール縁部）を形成する様子を説明する説明図である。11 (a) to 11 (c) respectively form a side seal portion (seal edge) at the same time that the diaper continuous body (band-shaped exterior body) is divided using the laser-type bonding apparatus shown in FIG. It is explanatory drawing explaining a mode. 図１２は、図１に示すおむつのサイドシール部及びその近傍を示す、該サイドシール部が延びる方向に直交する断面を示す断面図である。12 is a cross-sectional view showing a cross section orthogonal to the direction in which the side seal portion extends, showing the side seal portion of the diaper shown in FIG. 1 and the vicinity thereof.

以下本発明を、その好ましい実施形態に基づき図面を参照しながら説明する。以下の実施形態では、本発明における製造の対象物であるシート融着体、すなわち、複数枚のシートの縁部が重なった状態で融着したシール縁部を有するシート融着体として、一対のサイドシール部を有する外装体を具備するパンツ型使い捨ておむつを例にとり本発明を説明する。   The present invention will be described below based on preferred embodiments with reference to the drawings. In the following embodiments, a pair of sheet fusion bodies that are objects to be manufactured according to the present invention, that is, a sheet fusion body having a seal edge portion fused in a state where edges of a plurality of sheets overlap each other, The present invention will be described by taking a pants-type disposable diaper having an exterior body having a side seal part as an example.

図１ないし図３には、本発明に従い製造されたパンツ型使い捨ておむつ１が示されている。おむつ１は、吸収性本体２と、おむつ１の外面を形成する外装体３とを備え、前身頃Ｆ（腹側部１Ａ）における外装体３の縦方向Ｘに沿う左右両側縁部Ａ１，Ａ１と後身頃Ｒ（背側部１Ｂ）における外装体３の縦方向Ｘに沿う左右両側縁部Ｂ１，Ｂ１とが接合されて一対のサイドシール部４，４、ウエスト開口部８及び一対のレッグ開口部９，９が形成されている。外装体３は、吸収性本体２の非肌当接面側に位置して該吸収性本体２を固定している。   1 to 3 show a pants-type disposable diaper 1 manufactured according to the present invention. The diaper 1 includes an absorbent main body 2 and an exterior body 3 that forms the outer surface of the diaper 1, and left and right side edges A1, A1 along the longitudinal direction X of the exterior body 3 in the front body F (abdominal side 1A). And the left and right side edges B1 and B1 along the longitudinal direction X of the exterior body 3 in the back body R (back side part 1B) are joined together to form a pair of side seal parts 4 and 4, a waist opening part 8 and a pair of leg openings. Portions 9 and 9 are formed. The exterior body 3 is positioned on the non-skin contact surface side of the absorbent main body 2 and fixes the absorbent main body 2.

おむつ１は、図３に示す如き展開かつ伸長状態の平面視において、着用者の前後方向に相当する縦方向Ｘとこれに直交する横方向Ｙとを有している。おむつ１は、着用時に股下部に配される股下部１Ｃ並びにその縦方向Ｘの前後に位置する腹側部１Ａ及び背側部１Ｂに区分することができる。股下部１Ｃにおける外装体３は、その縦方向Ｘに沿う左右両側縁部にレッグ開口部９，９形成用の凹欠部が形成されている。また、おむつ１は、図３に示すように、おむつ１を縦方向Ｘに二分する仮想中心線ＣＬを境にして、前身頃Ｆと後身頃Ｒとに区分することができる。   The diaper 1 has a longitudinal direction X corresponding to the wearer's front-rear direction and a lateral direction Y orthogonal to the wearer's front-rear direction in a plan view in an unfolded and extended state as shown in FIG. The diaper 1 can be divided into a crotch part 1C arranged at the crotch part at the time of wearing, and an abdominal side part 1A and a back side part 1B located in the longitudinal direction X. The exterior body 3 in the crotch part 1 </ b> C is formed with recesses for forming leg openings 9, 9 at the left and right side edges along the vertical direction X. As shown in FIG. 3, the diaper 1 can be divided into a front body F and a back body R with a virtual center line CL that bisects the diaper 1 in the vertical direction X as a boundary.

なお、本明細書において、肌当接面は、パンツ型使い捨ておむつ１又はその構成部材（例えば吸収性本体）における、着用時に着用者の肌側に向けられる面であり、非肌当接面は、パンツ型使い捨ておむつ１又はその構成部材における、着用時に着用者の肌側とは反対側（着衣側）に向けられる面である。おむつ１において、縦方向Ｘは、使い捨ておむつ又はその構成部材である吸収性本体２の長辺に沿う方向（長手方向）に一致し、横方向Ｙは、使い捨ておむつ又はその構成部材である吸収性本体２の幅方向に一致する。   In addition, in this specification, a skin contact surface is a surface in the underpants type disposable diaper 1 or its component (for example, absorptive main body), and is turned to a wearer's skin side at the time of wear, A non-skin contact surface is In the pants-type disposable diaper 1 or a component thereof, the surface is directed to the side opposite to the wearer's skin side (clothing side) when worn. In the diaper 1, the vertical direction X corresponds to the direction (longitudinal direction) along the long side of the absorbent main body 2 which is a disposable diaper or its constituent member, and the horizontal direction Y is the absorbent which is a disposable diaper or its constituent member. It coincides with the width direction of the main body 2.

吸収性本体２は、図３に示すように、一方向（縦方向Ｘ）が相対的に長い縦長の形状を有しており、肌当接面を形成する表面シート２ａと、非肌当接面を形成する裏面シート２ｂと、これら両シート間に介在配置された液保持性の吸収体２ｃとを具備し、該吸収体２ｃは、縦方向Ｘと同方向に長い形状を有している。吸収性本体２は、その長手方向を、展開かつ伸長状態におけるおむつ１の縦方向Ｘに一致させて、外装体３の中央部に公知の接合手段（接着剤等）により接合されている。ここで、展開かつ伸長状態とは、サイドシール部を引き剥がして、おむつを展開状態とし、その展開状態のおむつを、各部の弾性部材を伸長させて、設計寸法（弾性部材の影響を一切排除した状態で平面状に広げたときの寸法と同じ）となるまで広げた状態をいう。   As shown in FIG. 3, the absorbent main body 2 has a vertically long shape in which one direction (vertical direction X) is relatively long, and a surface sheet 2 a that forms a skin contact surface, and a non-skin contact A back sheet 2b that forms a surface, and a liquid-retaining absorbent 2c interposed between the two sheets. The absorbent 2c has a shape that is long in the same direction as the longitudinal direction X. . The absorptive main body 2 is joined to a central portion of the outer package 3 by a known joining means (adhesive or the like) with its longitudinal direction coinciding with the longitudinal direction X of the diaper 1 in the expanded and extended state. Here, the expanded and extended state means that the side seal part is peeled off, the diaper is set in the expanded state, the elastic member of each part is expanded, and the design dimensions (the influence of the elastic member is completely eliminated). In this state, it is the same as the size when it is spread in a flat shape.

外装体３は、図２及び図３に示すように、おむつ１の外面（外装体３の非肌当接面）を形成する外層シート３１と、該外層シート３１の内面側に配され、おむつ１の内面（外装体３の肌当接面）を形成する内層シート３２と、両シート３１，３２間に接着剤により固定された複数本の糸状又は帯状の弾性部材５，６，７とを含んで構成されている。両シート３１，３２間は、所定部位において接着剤又はヒートシール等（図示せず）によって接合されている。   As shown in FIGS. 2 and 3, the outer package 3 is disposed on the outer layer sheet 31 that forms the outer surface of the diaper 1 (the non-skin contact surface of the outer package 3), and the inner surface side of the outer layer sheet 31. An inner layer sheet 32 that forms the inner surface of 1 (skin contact surface of the exterior body 3), and a plurality of thread-like or belt-like elastic members 5, 6, and 7 fixed between the sheets 31 and 32 with an adhesive. It is configured to include. The two sheets 31 and 32 are joined to each other at a predetermined site by an adhesive or heat seal (not shown).

外装体３（外層シート３１、内層シート３２）は、少なくとも一部に樹脂材を含み、該樹脂材を主成分として形成されている。外装体３（外層シート３１、内層シート３２）の一例として、樹脂材としてポリエチレン、ポリエチレンテレフタレート、ポリプロピレン等の熱融着性の合成樹脂を含み、不織布、フィルム、不織布とフィルムとのラミネートシート等からなるものが挙げられる。不織布としては、エアースルー不織布、ヒートロール不織布、スパンレース不織布、スパンボンド不織布、メルトブローン不織布等が挙げられる。   The exterior body 3 (the outer layer sheet 31 and the inner layer sheet 32) includes a resin material at least partially, and is formed using the resin material as a main component. As an example of the outer package 3 (the outer layer sheet 31 and the inner layer sheet 32), the resin material includes a heat-sealable synthetic resin such as polyethylene, polyethylene terephthalate, and polypropylene, and includes a nonwoven fabric, a film, a laminate sheet of a nonwoven fabric and a film, and the like. The thing which becomes. Examples of the nonwoven fabric include air-through nonwoven fabric, heat roll nonwoven fabric, spunlace nonwoven fabric, spunbond nonwoven fabric, and melt blown nonwoven fabric.

おむつ１における一対のサイドシール部４，４は、図２に示すように、それぞれ、前身頃Ｆにおける外装体３の縁部と後身頃Ｒにおける外装体３の縁部が、サイドシール部４の長手方向に延在する連続線状の融着部４０で結合したシール縁部４１を有している。おむつ１におけるシール縁部４１は、サイドシール部４，４のそれぞれにおいて、ウエスト開口部８とレッグ開口部９との間の全長にわたって連続して形成されている。シール縁部４１における融着部４０は、外装体３を構成する複数枚のシート（外層シート３１、内層シート３２）の縁部が重なった状態で、それらのシートの構成樹脂が溶融固化して形成されている。   As shown in FIG. 2, the pair of side seal parts 4, 4 in the diaper 1 is formed so that the edge part of the exterior body 3 in the front body F and the edge part of the exterior body 3 in the back body R are the side seal parts 4. It has a seal edge portion 41 joined by a continuous linear fusion portion 40 extending in the longitudinal direction. The seal edge 41 in the diaper 1 is formed continuously over the entire length between the waist opening 8 and the leg opening 9 in each of the side seal portions 4 and 4. The fused portion 40 in the seal edge portion 41 is obtained by melting and solidifying constituent resins of the sheets in a state where the edge portions of a plurality of sheets (the outer layer sheet 31 and the inner layer sheet 32) constituting the exterior body 3 are overlapped. Is formed.

以上の構成を有するパンツ型使い捨ておむつ１は、以下に説明する装置を用いた方法によって製造することができる。おむつ１の製造方法は、前身頃側と後身頃側とを重ねた状態の帯状の外装体３におけるサイドシール部の形成予定部位を加圧状態にする重合加圧工程と、加圧状態にあるサイドシール部の形成予定部位に、走行する外装体３の搬送方向Ｄと交差する方向に延在する光通過部（支持部材側開口部２７）を介してレーザー光を照射することにより、該外装体３を分断するとともに、その分断によって生じた、積層状態の外装体の切断縁部どうしを融着させてサイドシール部４を形成するサイドシール部形成工程とを具備している。また、重合加圧工程の前に、帯状の外装体３（外層シート３１、内層シート３２）に吸収性本体２を固定する本体固定工程を具備している。   The pants-type disposable diaper 1 having the above configuration can be manufactured by a method using an apparatus described below. The manufacturing method of the diaper 1 exists in the superposition | polymerization pressurization process which makes the formation planned site | part of the side seal part in the strip | belt-shaped exterior body 3 of the state which accumulated the front body side and the back body side into a pressurization state, and a pressurization state. By irradiating the portion where the side seal portion is to be formed with a laser beam via a light passage portion (support member side opening portion 27) extending in a direction intersecting with the conveyance direction D of the traveling exterior body 3, And a side seal portion forming step of forming the side seal portion 4 by fusing the cut edge portions of the laminated exterior body generated by the division. Moreover, the main body fixing process which fixes the absorptive main body 2 to the strip | belt-shaped exterior body 3 (the outer layer sheet | seat 31, the inner layer sheet | seat 32) is comprised before the superposition | polymerization pressurization process.

より具体的には、おむつ１の製造方法においては、図４に示すように、前記重合加圧工程において、帯状の外装体３（外層シート３１、内層シート３２）をその幅方向に折り畳むことにより、吸収性本体２が固定された帯状の外装体３の前身頃側と後身頃側とを重ね合わせ、それによって、「サイドシール部が形成されていないパンツ型使い捨ておむつの前駆体が一方向に連なってなる、おむつ連続体１０」を製造する。そして、前記サイドシール部形成工程において、このおむつ連続体１０における帯状の外装体３を、図５に示す装置を用い、レーザー光３０の照射により、個々に分断（溶断）するのと同時に、その分断によって生じた、積層状態の複数枚の外装体３（外層シート３１、内層シート３２）の切断縁部どうしを融着して、一対のサイドシール部４，４を有する外装体３を具備するパンツ型使い捨ておむつ１を連続的に製造する。   More specifically, in the manufacturing method of the diaper 1, as shown in FIG. 4, in the polymerization pressurizing step, the strip-shaped exterior body 3 (outer layer sheet 31, inner layer sheet 32) is folded in the width direction. The front body side and the back body side of the strip-shaped exterior body 3 to which the absorbent main body 2 is fixed are overlapped with each other, whereby “a precursor of a pants-type disposable diaper in which a side seal portion is not formed is unidirectional. A continuous diaper 10 "is produced. In the side seal portion forming step, the strip-shaped outer package 3 in the diaper continuous body 10 is divided (melted) individually by irradiation with the laser beam 30 using the apparatus shown in FIG. A plurality of outer package bodies 3 (outer layer sheet 31 and inner layer sheet 32) in a laminated state produced by the division are fused to each other, and the outer package body 3 having a pair of side seal portions 4 and 4 is provided. The pants-type disposable diaper 1 is continuously manufactured.

より詳細に説明すると、先ず、図４に示すように、原反ロール（図示せず）から連続的に供給される帯状の外層シート３１と、原反ロール（図示せず）から連続的に供給される帯状の内層シート３２の間に、ウエストギャザーを形成するウエスト部弾性部材５、胴回りギャザーを形成する胴回り部弾性部材６及びレッグギャザーを形成するレッグ部弾性部材７を、所定の伸長率に伸長させた伸長状態で各々複数本配する。このとき、レッグ部弾性部材７は、シートの流れ方向とは直交して往復運動する公知の揺動ガイド（図示せず）を介して、所定の脚周りパターンを形成しながら配される。また、帯状の外層シート３１及び帯状の内層シート３２には、それらを重ね合わせる前に、両シート３１，３２のいずれか一方又は双方の対向する面の所定部位に、接着剤塗工機（図示せず）によりホットメルト型接着剤を塗工する。なお、ウエスト部弾性部材５、胴回り部弾性部材６等の弾性部材が、両シート３１，３２における、レーザー光の照射によって分断される部分（サイドシール部４の形成予定部分、後述する図１１中符号１０Ｃで示す分断予定部分）を跨ぐように伸長状態で配されている場合、その分断後の該弾性部材の大幅な縮みや該弾性部材の抜け等の不都合を回避するために、該部分及びその近傍に接着剤を塗工しておくことが好ましい。ウエスト部弾性部材５及び胴回り部弾性部材６には、両シート３１，３２間に配される前に、接着剤塗工機（図示せず）によりホットメルト型接着剤を間欠的に塗工してもよい。   More specifically, first, as shown in FIG. 4, a strip-shaped outer layer sheet 31 continuously supplied from an original fabric roll (not shown) and continuously supplied from an original fabric roll (not shown). Between the belt-shaped inner layer sheets 32 to be formed, the waist elastic member 5 that forms the waist gather, the waist elastic member 6 that forms the waist gather, and the leg elastic member 7 that forms the leg gather have a predetermined elongation rate. A plurality of each are arranged in the stretched state. At this time, the leg elastic member 7 is arranged while forming a predetermined leg-circumferential pattern via a known swing guide (not shown) that reciprocates perpendicular to the sheet flow direction. In addition, the belt-shaped outer layer sheet 31 and the belt-shaped inner layer sheet 32 are coated with an adhesive coating machine (see FIG. (Not shown) to apply hot melt adhesive. It should be noted that the elastic members such as the waist elastic member 5 and the waistline elastic member 6 are divided by the laser light irradiation in the sheets 31 and 32 (the portion where the side seal portion 4 is to be formed, in FIG. 11 described later). In order to avoid inconveniences such as significant shrinkage of the elastic member after the division or disconnection of the elastic member, the portion and It is preferable to apply an adhesive in the vicinity thereof. A hot melt adhesive is intermittently applied to the waist elastic member 5 and the waist elastic member 6 by an adhesive application machine (not shown) before being arranged between the sheets 31 and 32. May be.

そして、図４に示すように、一対のニップロール１１，１１の間に、ウエスト部弾性部材５、胴回り部弾性部材６及びレッグ部弾性部材７を伸長状態で挟み込んだ帯状の外層シート３１及び帯状の内層シート３２を送り込んで加圧することにより、帯状シート３１，３２間に複数本の弾性部材５，６，７が伸長状態で配された帯状の外装体３を形成する。また、この外装体３の形成工程においては、隣り合う２本の胴回り部弾性部材６，６間において帯状の外層シート３１と帯状の内層シート３２とを接合する複数の接合部（図示せず）を、凸ロール１２とこれに対応するアンビルロール１３等の接合手段を用いて形成する。   And as shown in FIG. 4, between the pair of nip rolls 11 and 11, a belt-shaped outer layer sheet 31 and a belt-shaped outer layer sheet 5 in which a waist elastic member 5, a waistline elastic member 6 and a leg elastic member 7 are sandwiched in an expanded state. By feeding and pressurizing the inner layer sheet 32, the band-shaped exterior body 3 in which a plurality of elastic members 5, 6, 7 are arranged in an expanded state between the band-shaped sheets 31, 32 is formed. Moreover, in the formation process of this exterior body 3, the some junction part (not shown) which joins the strip | belt-shaped outer-layer sheet 31 and the strip | belt-shaped inner-layer sheet | seat 32 between two adjacent trunk periphery elastic members 6 and 6. Are formed by using a joining means such as the convex roll 12 and the corresponding anvil roll 13.

その後、必要に応じて、弾性部材プレカット手段（図示せず）を用いて、後述する吸収性本体２を配する位置に対応させて、複数本の胴回り部弾性部材６及び複数本のレッグ部弾性部材７を押圧して、収縮機能が発現されないように個々複数個に分断する。前記弾性部材プレカット手段としては、例えば、特開２００２−２５３６０５号公報に記載の複合伸縮部材の製造方法に用いる弾性部材分断部等が挙げられる。   Thereafter, if necessary, a plurality of waistline elastic members 6 and a plurality of leg portion elasticities are made by using elastic member precut means (not shown) so as to correspond to positions where the absorbent main body 2 described later is disposed. The member 7 is pressed and divided into a plurality of pieces so that the contraction function is not expressed. Examples of the elastic member precut means include an elastic member dividing portion used in the method for manufacturing a composite elastic member described in JP-A-2002-253605.

次いで、図４に示すように、別工程で製造された吸収性本体２に予めホットメルト接着剤等の接着剤を塗工し、該吸収性本体２を９０度回転させて、帯状の外装体３を構成する内層シート３２上に間欠的に供給して固定する（本体固定工程）。そして、図４に示すように、吸収性本体２が配置された帯状の外装体３におけるレッグ部弾性部材７で環状に囲まれた環状部の内側にレッグホールＬＯ’を形成する。このレッグホール形成工程は、ロータリーカッター、レーザーカッター等の従来からこの種の物品の製造方法における手法と同様の手法を用いて実施することができる。   Next, as shown in FIG. 4, an adhesive such as a hot melt adhesive is applied in advance to the absorbent main body 2 manufactured in a separate process, and the absorbent main body 2 is rotated by 90 degrees to form a belt-shaped outer package. 3 is intermittently supplied and fixed on the inner layer sheet 32 constituting 3 (main body fixing step). Then, as shown in FIG. 4, a leg hole LO ′ is formed inside the annular portion that is annularly surrounded by the leg elastic member 7 in the strip-shaped exterior body 3 in which the absorbent main body 2 is disposed. This leg hole forming step can be carried out by using a technique similar to that in a conventional method for manufacturing this type of article, such as a rotary cutter and a laser cutter.

次いで、帯状の外装体３をその幅方向（外装体３の搬送方向と直交する方向）に折り畳む。より具体的には、図４に示すように、帯状の外装体３の搬送方向に沿う両側部３ａ，３ａを、吸収性本体２の長手方向両端部を覆うように折り返して吸収性本体２の長手方向両端部を固定した後、外装体３を吸収性本体２とともにその幅方向に２つ折りする（重合加圧工程における重合工程）。こうして、おむつ連続体１０が得られる。   Next, the belt-shaped exterior body 3 is folded in the width direction (a direction orthogonal to the conveyance direction of the exterior body 3). More specifically, as shown in FIG. 4, both side portions 3 a, 3 a along the conveying direction of the strip-shaped outer package 3 are folded back so as to cover both longitudinal ends of the absorbent main body 2. After fixing both ends in the longitudinal direction, the outer package 3 is folded into two in the width direction together with the absorbent main body 2 (polymerization step in the polymerization pressure step). In this way, the diaper continuous body 10 is obtained.

次いで、こうして製造されたおむつ連続体１０に対して、図５に示すように、レーザー式接合装置２０を用いてレーザー光を照射して一対のサイドシール部４，４を形成し（サイドシール部形成工程）、一対の該サイドシール部４を有する外装体３を具備するパンツ型使い捨ておむつ１を連続的に製造する。   Next, as shown in FIG. 5, the diaper continuous body 10 thus manufactured is irradiated with laser light using a laser bonding apparatus 20 to form a pair of side seal portions 4 and 4 (side seal portion). Forming step), a pants-type disposable diaper 1 having an exterior body 3 having a pair of side seal portions 4 is continuously manufactured.

レーザー式接合装置２０について説明すると、レーザー式接合装置２０は、図５に示すように、第１面２１ａ及びそれと反対側に位置する第２面２１ｂを有し、おむつ連続体１０、すなわち少なくとも一部に樹脂材を含む複数枚のシートが重ねられた帯状のシート積層体１０をその長手方向にわたって第１面２１ａ上に支持する支持部材２１と、支持部材２１における第２面２１ｂ側に配置されかつレーザー光３０を集光するレンズを有する照射ヘッド３５と、支持部材２１の第１面２１ａ上に支持されたおむつ連続体１０を加圧する加圧部材２６である加圧ヘッドとを具備している。具体的に、支持部材２１は、レーザー式接合装置２０においては、矢印Ｄ方向に回転可能に駆動される円筒である中空の円筒ロール２３の周面部を形成している。従って、支持部材２１は、円筒の形状となっており、矢印Ｄ方向に回転可能な円筒の支持部材２１は、外方を向く第１面２１ａと内方を向く第２面２１ｂとを有する。   The laser bonding apparatus 20 will be described. The laser bonding apparatus 20 has a first surface 21a and a second surface 21b located on the opposite side as shown in FIG. A support member 21 that supports the first sheet 21a over the longitudinal direction of the belt-shaped sheet laminate 10 in which a plurality of sheets including a resin material are stacked on the first part 21a, and is disposed on the second surface 21b side of the support member 21. And an irradiation head 35 having a lens for condensing the laser beam 30, and a pressure head which is a pressure member 26 for pressing the diaper continuous body 10 supported on the first surface 21 a of the support member 21. Yes. Specifically, in the laser-type bonding apparatus 20, the support member 21 forms a peripheral surface portion of a hollow cylindrical roll 23 that is a cylinder that is driven to rotate in the direction of arrow D. Therefore, the support member 21 has a cylindrical shape, and the cylindrical support member 21 rotatable in the direction of arrow D has a first surface 21a facing outward and a second surface 21b facing inward.

上述の通り、支持部材２１は、円筒ロール２３の周面部（被加工物との当接部）を形成しており、円筒ロール２３の回転軸方向両端部を形成する一対の環状の枠体（図示せず）間に挟持固定されている。支持部材２１は、鉄、アルミニウム、ステンレス鋼、銅等の金属材料又はセラミックス等の耐熱性を有する材料からなる。   As described above, the support member 21 forms the peripheral surface portion (contact portion with the workpiece) of the cylindrical roll 23, and a pair of annular frames (both ends in the rotation axis direction of the cylindrical roll 23 ( (Not shown). The support member 21 is made of a metal material such as iron, aluminum, stainless steel, or copper, or a material having heat resistance such as ceramics.

支持部材２１は、第２面２１ｂ側から照射されたレーザー光３０の通過可能なおむつ連続体１０の幅方向に長いスリット状の支持部材側開口部２７と、支持部材側開口部２７から第２面２１ｂ側に離間して配置され支持部材側開口部２７から空気を吸引する集塵部材２８と、支持部材側開口部２７から第２面２１ｂ側に離間して配置され支持部材側開口部２７に向かって空気を吹き出す支持部材側空気吹出部２９とを有している。支持部材側開口部２７は、該支持部材２１を厚み方向に貫通するスリット状の開口部であり、レーザー光が通過可能な光通過部である。支持部材側開口部２７は、平面視して矩形形状を有し、その長手方向を、おむつ連続体１０（帯状の外装体３）の搬送方向Ｄと交差する方向、より具体的には、円筒ロール２３の回転軸の軸長方向と平行な方向に一致させて延びており、円筒の支持部材２１の周方向（搬送方向Ｄ）に沿って所定間隔を置いて複数設けられている。各支持部材側開口部２７には、集塵部材２８と支持部材側空気吹出部２９とが、一対で、支持部材側開口部２７から第２面２１ｂ側に離間して、円筒ロール２３の内部に配置されている。各支持部材側開口部２７、集塵部材２８及び支持部材側空気吹出部２９は、支持部材２１の回転に伴って共に矢印Ｄ方向に回転可能となっている。円筒ロール２３の回転軸の軸長方向に関して、支持部材側開口部２７の長さは、支持部材２１に支持されるおむつ連続体１０の分断予定部分（サイドシール部）の長さよりも長く形成されている。   The support member 21 includes a slit-like support member side opening 27 that is long in the width direction of the diaper continuous body 10 through which the laser beam 30 irradiated from the second surface 21 b side can pass, and a second support member side opening 27. A dust collecting member 28 that is spaced apart from the surface 21b side and sucks air from the support member side opening 27, and a support member side opening 27 that is spaced from the support member side opening 27 toward the second surface 21b side. And a support member side air blowing portion 29 that blows out air. The support member side opening 27 is a slit-like opening that penetrates the support member 21 in the thickness direction, and is a light passage portion through which laser light can pass. The support member side opening 27 has a rectangular shape in plan view, and its longitudinal direction intersects the conveyance direction D of the diaper continuous body 10 (band-shaped exterior body 3), more specifically, a cylinder. The roll 23 extends in a direction parallel to the axial direction of the rotation axis of the roll 23, and a plurality of them are provided at predetermined intervals along the circumferential direction (conveying direction D) of the cylindrical support member 21. In each support member side opening 27, a pair of a dust collecting member 28 and a support member side air blowing portion 29 are separated from the support member side opening 27 toward the second surface 21 b side, and the inside of the cylindrical roll 23. Is arranged. Each support member side opening 27, the dust collecting member 28 and the support member side air blowing portion 29 can be rotated in the direction of arrow D along with the rotation of the support member 21. With respect to the axial length direction of the rotating shaft of the cylindrical roll 23, the length of the support member side opening 27 is formed longer than the length of the part of the diaper continuous body 10 that is supported by the support member 21. ing.

支持部材２１は、支持部材側開口部２７ではレーザー光を通過させる一方、支持部材側開口部２７以外の部分ではレーザー光を通過（透過）させない。支持部材２１に支持部材側開口部２７を形成する方法としては、１）環状の枠体（図示せず）の周長と同じ長さの単一の環状部材からなる支持部材２１の所定箇所にエッチング、パンチング、レーザー加工等により支持部材側開口部２７を穿設する方法、２）支持部材２１として、単一の環状部材に代えて、湾曲した矩形形状の部材を複数用い、それら複数の部材を、一対の枠体（図示せず）間に、該枠体の周方向に所定間隔を置いて配置する方法が挙げられる。   The support member 21 allows the laser light to pass through the support member side opening 27, but does not pass (transmits) the laser light at portions other than the support member side opening 27. As a method of forming the support member side opening 27 in the support member 21, 1) At a predetermined position of the support member 21 made of a single annular member having the same length as the circumference of an annular frame (not shown) Method of drilling support member side opening 27 by etching, punching, laser processing, etc. 2) As support member 21, instead of a single annular member, a plurality of curved rectangular members are used, and the plurality of members May be arranged between a pair of frames (not shown) at a predetermined interval in the circumferential direction of the frame.

集塵部材２８は、図５及び図１０に示すように、円筒形状の管体２８１と、管体２８１の一端側に空気を吸引する吸引部材２８２とを有している。また、集塵部材２８には、支持部材側開口部２７に対向するように吸引開口部２８３が形成されている。詳述すると、管体２８１は、その長手方向が円筒ロール２３の回転軸方向と一致した状態で、円筒ロール２３の内部に配置されている。管体２８１は、その長手方向の他端が、円筒ロール２３の回転軸方向両端部を形成する一対の環状の枠体（図示せず）の一方に固定され、さらに円筒ロール２３の外部にまで延在しており、空気の吸引装置（図示せず）に接続されている。管体２８１の長手方向の一端である自由端側には、吸引部材２８２が取り付けられている。吸引部材２８２は、支持部材側開口部２７に対向するように吸引開口部２８３が形成され、吸引開口部２８３は、支持部材側開口部２７に向かって開口面積が漸次広くなるように形成されている。   As shown in FIGS. 5 and 10, the dust collecting member 28 includes a cylindrical tube body 281 and a suction member 282 that sucks air to one end side of the tube body 281. The dust collection member 28 is formed with a suction opening 283 so as to face the support member side opening 27. More specifically, the tubular body 281 is disposed inside the cylindrical roll 23 with its longitudinal direction coinciding with the rotational axis direction of the cylindrical roll 23. The other end in the longitudinal direction of the tube body 281 is fixed to one of a pair of annular frames (not shown) forming both ends in the rotation axis direction of the cylindrical roll 23, and further to the outside of the cylindrical roll 23. It extends and is connected to an air suction device (not shown). A suction member 282 is attached to the free end that is one end in the longitudinal direction of the tube body 281. The suction member 282 is formed with a suction opening 283 so as to face the support member side opening 27, and the suction opening 283 is formed so that the opening area gradually increases toward the support member side opening 27. Yes.

支持部材側空気吹出部２９は、常温の圧縮空気を噴射する部位である。支持部材側空気吹出部２９は、図５及び図１０に示すように、円筒ロール２３の内部に配置されており、円筒ロール２３の回転軸方向両端部を形成する一対の環状の枠体（図示せず）の一方に取り付けられている。支持部材側空気吹出部２９及び集塵部材２８は、支持部材２１の周方向（搬送方向Ｄ）に関して、支持部材側開口部２７を挟んで一対で配されている。支持部材側空気吹出部２９は、支持部材側開口部２７に向かって開口した吹出し口を有しており、その吹出し口が、支持部材側開口部２７と平行な方向、言い換えれば、円筒ロール２３の回転軸の軸長方向と平行な方向に延びており、支持部材側開口部２７に向かって圧縮空気を噴射できる構造となっている。円筒ロール２３の回転軸の軸長方向（おむつ連続体１０の幅方向）に関して、支持部材側空気吹出部２９の吹出し口の長さは、支持部材２１に支持されるおむつ連続体１０の分断予定部分（サイドシール部）の長さよりも長く、かつ支持部材側開口部２７の長さよりも短いことが好ましい。   The support member side air blowing portion 29 is a portion that ejects compressed air at room temperature. As shown in FIGS. 5 and 10, the support member-side air blowing portion 29 is disposed inside the cylindrical roll 23 and forms a pair of annular frames (see FIG. (Not shown). The support member-side air blowing portion 29 and the dust collecting member 28 are arranged in a pair with respect to the circumferential direction (conveying direction D) of the support member 21 with the support member-side opening 27 interposed therebetween. The support member-side air blowing portion 29 has a blow-out opening that opens toward the support-member-side opening 27, and the blow-out opening is in a direction parallel to the support-member-side opening 27, in other words, the cylindrical roll 23. It extends in a direction parallel to the axial length direction of the rotating shaft of the rotating shaft, and has a structure in which compressed air can be injected toward the support member side opening 27. Regarding the axial length direction of the rotation axis of the cylindrical roll 23 (width direction of the diaper continuous body 10), the length of the outlet of the support member-side air blowing portion 29 is determined to be divided by the diaper continuous body 10 supported by the support member 21. It is preferable that it is longer than the length of the portion (side seal portion) and shorter than the length of the support member side opening 27.

照射ヘッド３５は、図５に示すように、レーザー光３０を自在に走査するガルバノスキャナ（モータ軸にミラーが付いた装置）であり、レーザー光３０を円筒ロール２３の回転軸と平行な方向に進退させる機構、レーザー光３０が支持部材２１の第１面２１ａ上に支持されたおむつ連続体１０に当たる位置（照射点）を円筒ロール２３の周方向に移動させる機構、及び円筒ロール２３の周面上でレーザー光３０のスポット径を一定にする機構等を備えている。レーザー照射機構は、このような構成を有することによって、レーザー光３０の照射点を、円筒ロール２３の周方向及び該周方向と直交する方向の両方向に任意に移動させることができる。   As shown in FIG. 5, the irradiation head 35 is a galvano scanner (an apparatus having a motor shaft with a mirror) that freely scans the laser light 30, and the laser light 30 is parallel to the rotation axis of the cylindrical roll 23. A mechanism for moving back and forth, a mechanism for moving the position (irradiation point) where the laser beam 30 hits the diaper continuous body 10 supported on the first surface 21 a of the support member 21 in the circumferential direction of the cylindrical roll 23, and the circumferential surface of the cylindrical roll 23 A mechanism for making the spot diameter of the laser beam 30 constant is provided. By having such a configuration, the laser irradiation mechanism can arbitrarily move the irradiation point of the laser light 30 in both the circumferential direction of the cylindrical roll 23 and the direction orthogonal to the circumferential direction.

加圧部材２６は、図５ないし図７に示すように、支持部材側開口部２７の延びる方向と同方向に延びかつ支持部材側開口部２７と対向配置される加圧部材側開口部５５と、加圧部材側開口部５５に向かって空気を吹き出す加圧部材側空気吹出部５９とを有している。加圧部材２６は、上述した支持部材２１の第１面２１ａ上に支持されたおむつ連続体１０を加圧するために用いられ、1つの支持部材側開口部２７に対して１つの加圧部材２６が設けられている。したがって、レーザー式接合装置２０においては、加圧部材２６は複数個配置されている。各加圧部材２６は、円筒ロール２３の回転軸の延長線上に回転軸を持ち、円筒ロール２３に隣接して配置された第２円筒ロール２５の周面に配置されている。第２円筒ロール２５は、円筒ロール２３と同期して回転する。なお、図５においては、各加圧部材２６が、円筒ロール２３とは別部材である第２円筒ロール２５に取り付けられているが、これに代えて、各加圧部材２６を円筒ロール２３に取り付けることも可能である。   As shown in FIGS. 5 to 7, the pressure member 26 extends in the same direction as the direction in which the support member side opening 27 extends and is disposed opposite to the support member side opening 27. And a pressure member-side air blowing portion 59 that blows out air toward the pressure member-side opening 55. The pressurizing member 26 is used to pressurize the diaper continuous body 10 supported on the first surface 21 a of the support member 21 described above, and one pressurizing member 26 against one support member side opening 27. Is provided. Therefore, in the laser type bonding apparatus 20, a plurality of pressure members 26 are arranged. Each pressing member 26 has a rotation axis on an extension line of the rotation axis of the cylindrical roll 23, and is disposed on the peripheral surface of the second cylindrical roll 25 disposed adjacent to the cylindrical roll 23. The second cylindrical roll 25 rotates in synchronization with the cylindrical roll 23. In FIG. 5, each pressure member 26 is attached to a second cylindrical roll 25, which is a separate member from the cylindrical roll 23. Instead, each pressure member 26 is attached to the cylindrical roll 23. It is also possible to attach.

第２円筒ロール２５が円筒ロール２３と同期して回転することで、各加圧部材２６は、円筒ロール２３の円筒を構成する支持部材２１の周方向と同方向に、かつ支持部材２１の周速と同速で、支持部材２１の周面に沿って周回可能になっている。   As the second cylindrical roll 25 rotates in synchronization with the cylindrical roll 23, each pressure member 26 is in the same direction as the circumferential direction of the support member 21 that forms the cylinder of the cylindrical roll 23 and the circumference of the support member 21. It is possible to go around along the peripheral surface of the support member 21 at the same speed as the speed.

図６ないし８に示されている加圧部材２６は、長手方向Ｘ１及びそれと直交する幅方向Ｙ１と有し、長手方向Ｘ１に沿って縦長の形状をしている。加圧部材２６は、その長手方向Ｘ１が、円筒状の支持部材２１の周方向、すなわちおむつ連続体１０の搬送方向と直交し、かつその幅方向Ｙ１が、円筒状の支持部材２１の周方向、すなわちおむつ連続体１０の搬送方向と同方向を向くように配置される。加圧部材２６は、本体部５０Ａと、加圧部５０Ｂとを有している。本体部５０Ａは、長手方向Ｘ１と、それと直交する幅方向Ｙ１と有し、長手方向Ｘ１に沿って縦長のブロック体から構成されている。本体部５０Ａは、その長手方向Ｘ１の一端に先端部５２ａを有し、その長手方向Ｘ１の他端に後端部５２ｂを有している。後端部５２ｂには、接続部材５３が接続されている。本体部５０Ａは、その内部に本体中空部５１を有している。本体中空部５１は、その横断面の形状が多角形状のものであり、本体部５０Ａの長手方向Ｘ１に沿って延びている。本体中空部５１は、本体部５０Ａの後端部５２ｂの位置において、接続部材５３と連通している。接続部材５３は、空気の吸引装置（図示せず）に接続されている。 Pressure member 26 shown in 8 Figures 6 includes a width direction Y 1 perpendicular longitudinal X 1 and therewith, has a vertically long shape along a longitudinal direction X 1. Pressure member 26 has its longitudinal direction X 1 is, the circumferential direction of the cylindrical support member 21, i.e., perpendicular to the conveying direction of the diaper continuum 10, and its width direction Y 1, the cylindrical support member 21 It arrange | positions so that it may face the circumferential direction, ie, the same direction as the conveyance direction of the diaper continuous body 10. FIG. The pressure member 26 includes a main body portion 50A and a pressure portion 50B. The body portion 50A has a longitudinal direction X 1, same as the width direction Y 1 orthogonal, and a portrait of the block body along a longitudinal direction X 1. The body portion 50A has a distal end portion 52a at one end in the longitudinal direction X 1, and a rear portion 52b at the other end in the longitudinal direction X 1. A connecting member 53 is connected to the rear end portion 52b. The main body portion 50A has a main body hollow portion 51 therein. Main hollow portion 51, the shape of the cross section is of polygonal shape, and extends in the longitudinal direction X 1 of the main body portion 50A. The main body hollow portion 51 communicates with the connection member 53 at the position of the rear end portion 52b of the main body portion 50A. The connection member 53 is connected to an air suction device (not shown).

加圧部５０Ｂは、図６及び図７（ｂ）に示すように、本体部５０Ａを構成する長手方向Ｘ１に延びる両側壁５０Ａ１の先端から外方に傾斜しながら互いに近づく一対の局所加圧部材５４，５４を備えている。各局所加圧部材５４は、長手方向Ｘ１に延びる縦長の板状のものであり、本体部５０Ａと一体的に形成されている。各局所加圧部材５４は、幅方向Ｙ１に沿って所定の厚みを有しており、その先端が面取りされて鋭角となっており、この面取りされて形成された面が加圧面５４Ａとなる。加圧面５４Ａは、平坦な面となっている。各局所加圧部材５４は、その加圧面５４Ａによって、支持部材２１の第１面２１ａ上に支持されたおむつ連続体１０を局所的に加圧するために用いられる。 Pressing 50B, as shown in FIG. 6 and FIG. 7 (b), a pair of local pressure to approach each other while inclined from the tip of the side walls 50A1 outwardly extending in the longitudinal direction X 1 which constitutes the main body portion 50A Members 54 are provided. Each local pressure member 54 is of a vertically long plate extending in the longitudinal direction X 1, is formed integrally with the main body portion 50A. Each local pressure member 54 has a predetermined thickness along the width direction Y 1, and an acute angle the tip is chamfered, a surface which is formed by the chamfered is pressing surface 54A . The pressing surface 54A is a flat surface. Each local pressure member 54 is used to locally pressurize the diaper continuum 10 supported on the first surface 21a of the support member 21 by the pressure surface 54A.

一対の局所加圧部材５４，５４は、本体部５０Ａの両側壁５０Ａ１の先端から互いに近づくように傾斜して配され、その一対の加圧面５４Ａ，５４Ａが、幅方向Ｙ１に所定の間隔を置いて非接触状態で配置され、長手方向Ｘ１に沿って平行に配置されている。したがって、一対の局所加圧部材５４，５４の間には、空間Ｓが設けられている。空間Ｓは、加圧部材２６の長手方向Ｘ１に沿って延びているとともに、加圧部材２６の厚み方向にも延びている。そして空間Ｓは、上述した本体部５０Ａの内部に設けられた本体中空部５１と連通している。空間Ｓは、一対の局所加圧部材５４，５４の先端部において開口している。この開口は、加圧部材側開口部５５として機能するものである。上述したとおり、空間Ｓは本体中空部５１と連通しており、該本体中空部５１は接続部材５３と連通しており、該接続部材５３は、空気の吸引装置（図示せず）に接続されているので、該吸引装置（図示せず）を動作させることで、加圧部材側開口部５５を通じ、加圧部材２６の内部（本体中空部５１）に向けて空気が吸引されるようになっている。つまり、加圧部材２６は、支持部材２１の第１面２１ａ上に支持されたおむつ連続体１０を加圧するための機能、及びレーザー光３０の照射によって発生するガスを吸引し除去する機能の２つの機能を併せ持っている。 A pair of local pressure member 54 is arranged to be inclined so as to approach each other from the distal end of both side walls 50A1 of the main body 50A, the pair of pressing surfaces 54A, 54A is a predetermined distance in the width direction Y 1 are arranged in a non-contact state at, they are arranged parallel to the longitudinal direction X 1. Therefore, a space S is provided between the pair of local pressure members 54 and 54. Space S extends along the longitudinal direction X 1 of the pressing member 26, but also extends in the thickness direction of the pressure member 26. The space S communicates with the main body hollow portion 51 provided inside the main body portion 50A described above. The space S is open at the distal ends of the pair of local pressure members 54 and 54. This opening functions as the pressure member side opening 55. As described above, the space S communicates with the main body hollow portion 51, the main body hollow portion 51 communicates with the connection member 53, and the connection member 53 is connected to an air suction device (not shown). Therefore, by operating the suction device (not shown), air is sucked toward the inside of the pressurizing member 26 (main body hollow portion 51) through the pressurizing member side opening 55. ing. That is, the pressurizing member 26 has a function of pressurizing the diaper continuous body 10 supported on the first surface 21 a of the support member 21 and a function of sucking and removing the gas generated by the irradiation of the laser beam 30. It has two functions.

加圧部材側開口部５５は、その幅（図７（ｂ）中、幅方向Ｙ１に沿った長さ）が、上述した支持部材２１における支持部材側開口部２７の幅（支持部材２１の周方向に沿った長さ）よりも大きくなっている。尤も、場合によっては、加圧部材側開口部５５の幅を、支持部材側開口部２７の幅と同等又はそれよりも小さくすることもできる。加圧部材側開口部５５の長さ（図７（ａ）中、長手方向Ｘ１に沿った長さ）に関しては、おむつの分断予定部分（サイドシール部）の長さよりも大きければよい。このことを前提として、本実施形態においては、加圧部材側開口部５５の長さは、支持部材２１における支持部材側開口部２７の長さ（支持部材２１の軸線方向に沿った長さ）よりも大きくなっている。そして、加圧部材２６は、それに形成された加圧部材側開口部５５が、支持部材２１における支持部材側開口部２７の全体を覆うように、支持部材２１の第１面２１ａである外面に当接するように配置される。つまり加圧部材側開口部５５は、支持部材２１に設けられた支持部材側開口部２７の延びる方向と同方向に延び、かつ該支持部材側開口部２７と対向配置される。 Pressure member side opening 55 has a width (in FIG. 7 (b), the length along the width direction Y 1) is the width of the support member side opening 27 in the support member 21 described above (the supporting member 21 The length along the circumferential direction). However, depending on the case, the width of the pressure member side opening 55 can be equal to or smaller than the width of the support member side opening 27. The length of the pressing member side opening 55 with respect to the (in FIG. 7 (a), the longitudinal direction X length along the 1) needs to be larger than the length of the cutting scheduled portion of the diaper (side seal portion). On the premise of this, in the present embodiment, the length of the pressure member side opening 55 is the length of the support member side opening 27 in the support member 21 (the length along the axial direction of the support member 21). Is bigger than. Then, the pressure member 26 is formed on the outer surface which is the first surface 21 a of the support member 21 so that the pressure member side opening 55 formed on the pressure member 26 covers the entire support member side opening 27 of the support member 21. It arrange | positions so that it may contact | abut. That is, the pressure member side opening 55 extends in the same direction as the direction in which the support member side opening 27 provided in the support member 21 extends, and is disposed opposite to the support member side opening 27.

以上のことから明らかなとおり、局所加圧部材５４は、支持部材２１における第１面２１ａ側の位置において、図６に示すように、その加圧面５４Ａが、加圧部材側開口部５５の延びる方向と同方向に延びており、かつ加圧面５４Ａが加圧部材側開口部５５を挟んで位置するように、該加圧部材側開口部５５に隣接して一対配置されている。   As is apparent from the above, the local pressure member 54 has the pressure surface 54 </ b> A extending from the pressure member side opening 55 at the position on the first surface 21 a side of the support member 21 as shown in FIG. 6. The pair of pressure surfaces 54 </ b> A is disposed adjacent to the pressure member side opening 55 so that the pressure surface 54 </ b> A is located across the pressure member side opening 55.

加圧部材側空気吹出部５９は、上述した支持部材側空気吹出部２９と同様に、常温の圧縮空気を噴射する部位である。加圧部材側空気吹出部５９は、レーザー式接合装置２０においては、図５ないし図８に示すように、加圧部材２６を構成する本体部５０Ａの両側壁５０Ａ１に取り付けられている。各側壁５０Ａ１は、局所加圧部材５４との境界部分に長手方向Ｘ１に延びる貫通口５０Ａ２（図７（ａ）参照）を有している。各加圧部材側空気吹出部５９は、その吹出し口が、貫通口５０Ａ２に位置するように、本体部５０Ａの各側壁５０Ａ１に取り付けられている。各加圧部材側空気吹出部５９の吹出し口及び貫通口５０Ａ２は、加圧部材側開口部５５と平行な方向、言い換えれば、長手方向Ｘ１に延びている。そして、各加圧部材側空気吹出部５９は、各側壁５０Ａ１に設けられた貫通口５０Ａ２を介して、加圧部材２６の本体部５０Ａの内部に向かって圧縮空気を噴射できる構造となっている。そして、レーザー式接合装置２０においては、加圧部材側空気吹出部５９の空気の噴射方向が、側壁５０Ａ１の先端から傾斜して配されている局所加圧部材５４の傾斜面の傾斜方向と一致しており、各加圧部材側空気吹出部５９の吹出し口から噴射された圧縮空気は、局所加圧部材５４の傾斜面に沿って移動することで、本体中空部５１から加圧部材側開口部５５に向かって圧縮空気を噴射できる構造となっている。加圧部材側空気吹出部５９は、加圧部材側開口部５５を挟んで一対で配されている。長手方向Ｘ１において、加圧部材側空気吹出部５９の吹出し口の長さは、支持部材２１に支持されるおむつ連続体１０の分断予定部分（サイドシール部）の長さよりも長いことが好ましい。 The pressurizing member side air blowing part 59 is a part that injects compressed air at room temperature, similarly to the support member side air blowing part 29 described above. As shown in FIGS. 5 to 8, the pressurizing member-side air blowing portion 59 is attached to both side walls 50 </ b> A <b> 1 of the main body portion 50 </ b> A constituting the pressurizing member 26 in the laser type bonding apparatus 20. Each side wall 50A1 has a through hole 50A2 extending in the longitudinal direction X 1 at the boundary between the local pressure member 54 (see FIG. 7 (a)). Each pressurizing member side air outlet 59 is attached to each side wall 50A1 of the main body 50A so that the outlet is located in the through hole 50A2. Air outlet and the through hole 50A2 of the pressure member-side air outlet portion 59, the direction parallel to the pressing member side opening 55, in other words, extends longitudinally X 1. And each pressurization member side air blowing part 59 has a structure which can inject compressed air toward the inside of main part 50A of pressurization member 26 via penetration port 50A2 provided in each side wall 50A1. . In the laser-type bonding apparatus 20, the air injection direction of the pressure member-side air blowing portion 59 is the same as the inclination direction of the inclined surface of the local pressure member 54 disposed to be inclined from the tip of the side wall 50A1. The compressed air injected from the outlet of each pressurizing member side air outlet 59 moves along the inclined surface of the local pressurizing member 54, thereby opening the pressurizing member side opening from the main body hollow portion 51. The compressed air can be injected toward the portion 55. The pressurizing member side air blowing portions 59 are arranged as a pair with the pressurizing member side opening 55 interposed therebetween. In the longitudinal direction X <b> 1 , the length of the outlet of the pressure member side air outlet 59 is preferably longer than the length of the part of the diaper continuous body 10 that is supported by the support member 21 (the side seal part). .

以上の構成を有する加圧部材２６の動作を示す様子が図８に示されている。図８は、レーザー式接合装置２０の断面の要部を模式的に示すものである。同図は、円筒ロール２３及び支持部材２１の回転軸を通る縦断面図である。同図に示すとおり、加圧部材２６は、その長手方向Ｘ１、換言すれば、該加圧部材２６に設けられた加圧部材側開口部５５の延びる方向の一端である後端部５２ｂにヒンジ構造の支持部２４を有している。支持部２４は、第２円筒ロール２５に取り付けられている。そして加圧部材２６は、支持部２４を支点として、支持部材２１の回転軸を通る面内、例えば図８における紙面内において揺動運動が可能になっている。加圧部材２６が揺動運動を行う範囲は、図８に示すとおり、加圧部材２６の加圧面５４Ａが、支持部材２１の周面から十分に離間して、支持部材２１の周面に導入されるおむつ連続体１０と干渉しない状態（例えば図８においては、上側に示す加圧部材２６が支持部材２１の周面と直交する状態）から、該加圧面５４Ａが、支持部材２１の周面と平行になる状態（図８における下側に示す状態）までの範囲である。この揺動範囲内において、加圧部材２６は、支持部材２１の周面に沿って周回しながら揺動運動を行い、周回をしている間、該加圧部材２６の局所加圧部材５４が、支持部材２１の第１面２１ａに対して接離動作を繰り返すようになっている。 FIG. 8 shows the operation of the pressure member 26 having the above configuration. FIG. 8 schematically shows an essential part of a cross section of the laser-type bonding apparatus 20. This figure is a longitudinal sectional view passing through the rotation axis of the cylindrical roll 23 and the support member 21. As shown in the figure, the pressure member 26 has a longitudinal direction X 1 , in other words, a rear end portion 52b that is one end in the direction in which the pressure member side opening 55 provided in the pressure member 26 extends. A support portion 24 having a hinge structure is provided. The support portion 24 is attached to the second cylindrical roll 25. The pressurizing member 26 can swing in a plane passing through the rotation axis of the support member 21, for example, in the plane of FIG. 8, with the support portion 24 as a fulcrum. As shown in FIG. 8, the range in which the pressure member 26 performs the swinging motion is such that the pressure surface 54 </ b> A of the pressure member 26 is sufficiently separated from the peripheral surface of the support member 21 and is introduced into the peripheral surface of the support member 21. From the state where the diaper continuous body 10 does not interfere (for example, in FIG. 8, the pressure member 26 shown on the upper side is perpendicular to the circumferential surface of the support member 21), the pressure surface 54 </ b> A is the circumferential surface of the support member 21. To the state (state shown in the lower side in FIG. 8) in parallel with the Within this swinging range, the pressurizing member 26 performs a swinging motion while circling along the peripheral surface of the support member 21, and the local pressurizing member 54 of the pressurizing member 26 moves while rotating. The contact / separation operation is repeated with respect to the first surface 21 a of the support member 21.

加圧部材２６を揺動運動させるためには、公知の手段を適宜用いればよい。例えばカム機構を用いたり、シリンダ機構を用いたり、あるいはサーボモータを用いたりすることができる。   In order to swing the pressing member 26, a known means may be used as appropriate. For example, a cam mechanism, a cylinder mechanism, or a servo motor can be used.

加圧部材２６を揺動運動させる代わりに、別の運動を行わせて、該加圧部材２６が支持部材２１の周面に沿って周回をしている間、該加圧部材２６の局所加圧部材５４を、支持部材２１の第１面２１ａに対して接離動作させることもできる。例えば加圧部材２６を、支持部材２１の径方向に沿った往復運動が可能に構成することができる。こうすることで、加圧部材２６が支持部材２１の周面に沿って周回をしている間、該加圧部材２６が支持部材２１の径方向に沿って往復運動を行い、それによって該加圧部材２６が支持部材２１の第１面２１ａに対して接離動作を繰り返すようになる。加圧部材２６を往復運動させる手段は、これを揺動運動させる手段と同様であり、例えばカム機構を用いたり、シリンダ機構を用いたり、あるいはサーボモータを用いたりすればよい。   Instead of rocking movement of the pressure member 26, another movement is performed so that the pressure member 26 is locally applied while the pressure member 26 circulates along the circumferential surface of the support member 21. The pressure member 54 can be moved toward and away from the first surface 21 a of the support member 21. For example, the pressure member 26 can be configured to be capable of reciprocating along the radial direction of the support member 21. In this way, while the pressure member 26 circulates along the peripheral surface of the support member 21, the pressure member 26 reciprocates along the radial direction of the support member 21. The pressure member 26 repeats the contact / separation operation with respect to the first surface 21 a of the support member 21. The means for reciprocating the pressure member 26 is the same as the means for swinging the pressure member 26. For example, a cam mechanism, a cylinder mechanism, or a servo motor may be used.

図９は、支持部材２１の周面に沿って周回する各加圧部材２６の揺動運動（接離動作）の状態を示す模式図である。なお同図において、支持部材２１の第１面２１ａに支持されているおむつ連続体１０は、支持部材２１から出て行くときには分断されて個々のおむつ１となっているが、説明の便宜上、同図においては連続体として描かれている。各加圧部材２６は、支持部材２１の第１面２１ａにおける各々の位置に応じて状態が相違している。加圧部材２６の状態は、支持部材２１の周方向に沿って見たとき、開放状態Ａ、揺動過程状態（加圧過程状態）Ｂ１、加圧状態Ｃ及び揺動過程状態（開放過程状態）Ｂ２に大別される。なお、加圧部材２６のこのような動作は、本発明の一例を示すものであり、加圧部材２６がこれと異なる動作を行いおむつ連続体１０の分断を行うことは何ら妨げられない。   FIG. 9 is a schematic diagram showing a state of swinging motion (contact / separation operation) of each pressure member 26 that circulates along the peripheral surface of the support member 21. In the figure, the diaper continuous body 10 supported by the first surface 21a of the support member 21 is divided into individual diapers 1 when leaving the support member 21, but for convenience of explanation, the same diaper 1 is used. In the figure, it is drawn as a continuum. Each pressurizing member 26 has a different state depending on each position on the first surface 21 a of the support member 21. When the pressure member 26 is viewed along the circumferential direction of the support member 21, the open state A, the swing process state (pressurization process state) B1, the pressurization state C, and the swing process state (open process state). ) Broadly divided into B2. In addition, such operation | movement of the pressurization member 26 shows an example of this invention, and it is not prevented at all that the pressurization member 26 performs operation | movement different from this, and the diaper continuous body 10 is parted.

開放状態Ａは、支持部材２１の第１面２１ａから、製品であるおむつ１が離間し、かつ加工の対象であるおむつ連続体１０が支持部材２１の第１面２１ａに支持されるまでの扇形の範囲と概ね一致する。加圧状態Ｃは、開放状態Ａの範囲に対して１８０度反対側に位置し、かつ開放状態Ａの扇形の中心角よりも広い中心角をもつ扇形の範囲である。揺動過程状態は、支持部材２１の周方向に沿って見たときに、開放状態Ａから加圧状態Ｃに遷移する間に現れる（揺動過程状態Ｂ１）とともに、加圧状態Ｃから開放状態Ａに遷移する間にも現れる（揺動過程状態Ｂ２）。   In the open state A, the diaper 1 as a product is separated from the first surface 21 a of the support member 21 and the diaper continuous body 10 to be processed is supported by the first surface 21 a of the support member 21. It almost coincides with the range of. The pressurized state C is a fan-shaped range that is located 180 degrees opposite to the range of the open state A and has a wider central angle than the center angle of the fan-shaped state of the open state A. The swinging process state appears while transitioning from the open state A to the pressurized state C (swinging process state B1) when viewed along the circumferential direction of the support member 21, and from the pressurized state C to the open state. It also appears during the transition to A (rocking process state B2).

開放状態Ａとは、先に説明した図８における上側に示す状態のことであり、加圧部材２６の加圧面５４Ａが、支持部材２１の周面から十分に離間している全開状態である。製品であるおむつ１が支持部材２１から離間し、かつ加工の対象であるおむつ連続体１０が支持部材２１の第１面２１ａに支持されるまでの間を開放状態Ａとすることで、製品であるおむつ１の取り出しが容易に行える。また加工の対象であるおむつ連続体１０を容易に支持部材２１の第１面２１ａ上に導入することができる。   The open state A is a state shown on the upper side in FIG. 8 described above, and is a fully open state in which the pressure surface 54A of the pressure member 26 is sufficiently separated from the peripheral surface of the support member 21. By setting the diaper 1 which is a product apart from the support member 21 and the diaper continuous body 10 to be processed to be supported by the first surface 21a of the support member 21 in the open state A, the product A certain diaper 1 can be easily taken out. Moreover, the diaper continuous body 10 which is the object of processing can be easily introduced onto the first surface 21 a of the support member 21.

加圧状態Ｃとは、図８における下側に示す状態のことであり、加圧部材２６の加圧面５４Ａが、支持部材２１の周面と平行になる状態である。この状態においては、支持部材２１の第１面２１ａ上に支持されたおむつ連続体１０が、加圧部材２６によって確実に加圧され、その加圧状態下にレーザー光３０による溶断が行われるので、その後の融着が首尾よく行うことができる。   The pressurized state C is a state shown on the lower side in FIG. 8, and is a state in which the pressing surface 54 </ b> A of the pressing member 26 is parallel to the peripheral surface of the support member 21. In this state, the diaper continuous body 10 supported on the first surface 21a of the support member 21 is reliably pressurized by the pressurizing member 26, and fusing by the laser beam 30 is performed under the pressurized state. Subsequent fusion can be done successfully.

揺動過程状態Ｂ１においては、開放状態にあった加圧部材２６の揺動が開始され、該加圧部材２６の加圧面５４Ａが、支持部材２１の第１面２１ａに向けて接近する。一方、揺動過程状態Ｂ２においては、加圧状態にあった加圧部材２６の揺動が開始され、該加圧部材２６の加圧面５４Ａが、支持部材２１の第１面２１ａから離間する。   In the swinging process state B <b> 1, swinging of the pressure member 26 that has been in the open state is started, and the pressure surface 54 </ b> A of the pressure member 26 approaches toward the first surface 21 a of the support member 21. On the other hand, in the swinging process state B <b> 2, swinging of the pressure member 26 that has been in a pressurized state is started, and the pressure surface 54 </ b> A of the pressure member 26 is separated from the first surface 21 a of the support member 21.

以上のとおり、本実施形態においては、１つの加圧部材２６に着目したとき、該加圧部材２６が支持部材２１の周面に沿って１回の周回運動をする間に、開放状態Ａ→加圧に向かう揺動過程状態Ｂ１→加圧状態Ｃ→開放に向かう揺動過程状態Ｂ２の動作を１周期の動作として行っている。   As described above, in the present embodiment, when attention is paid to one pressing member 26, the pressing member 26 is in the open state A → while the pressing member 26 performs one round motion along the peripheral surface of the support member 21. The operation of the swinging process state B1 going to pressurization → the pressurizing state C → the swinging process state B2 going to release is performed as one cycle operation.

また、レーザー式接合装置２０においては、図５及び図９に示す揺動過程状態Ｂ１から加圧状態Ｃになると同時に、支持部材側開口部２７から第２面２１ｂ側に離間して配置された集塵部材２８を用いて、支持部材側開口部２７から空気を吸引する。集塵部材２８による空気の吸引は、加圧状態Ｃとなっている間中、すなわち加圧状態Ｃの扇形の範囲の全域に亘って行われる。次に、加圧状態Ｃにおいて、各加圧部材側空気吹出部５９を用いて、加圧部材側開口部５５に向かって圧縮空気を噴射する。加圧部材側空気吹出部５９による圧縮空気の噴射は、加圧状態Ｃを越えて、開放に向かう揺動過程状態Ｂ２における開放状態Ａとなる直前まで行われる。次に、加圧状態Ｃにおける加圧部材２６の一対の局所加圧部材５４，５４の加圧面５４Ａでおむつ連続体１０を局所的に加圧して押さえつけている間、集塵部材２８による空気の吸引と加圧部材側空気吹出部５９による圧縮空気の噴射が行われている状況下で、レーザー光３０を照射しておむつ連続体１０を分断するのと同時に融着させてサイドシール部４を形成する。おむつ連続体１０の分断と同時にサイドシール部４を形成した後、揺動過程状態Ｂ２において、支持部材側開口部２７から第２面２１ｂ側に離間して配置された支持部材側空気吹出部２９を用いて、支持部材側開口部２７に向かって圧縮空気を噴射する。支持部材側空気吹出部２９による圧縮空気の噴射は、開放状態Ａの途中まで行われる。   Further, in the laser-type bonding apparatus 20, the swing process state B1 shown in FIGS. 5 and 9 is changed to the pressurized state C, and at the same time, spaced from the support member side opening 27 to the second surface 21b side. Air is sucked from the support member side opening 27 using the dust collecting member 28. The suction of the air by the dust collecting member 28 is performed throughout the pressurized state C, that is, over the entire fan-shaped range of the pressurized state C. Next, in the pressurized state C, compressed air is injected toward the pressure member side opening 55 using each pressure member side air blowing portion 59. The injection of compressed air by the pressure member-side air blowing portion 59 is performed until the pressure state C is exceeded and immediately before the opening state A in the swinging process state B2 toward opening. Next, while the diaper continuum 10 is locally pressed and pressed by the pressure surfaces 54A of the pair of local pressure members 54, 54 of the pressure member 26 in the pressure state C, the air collected by the dust collecting member 28 is reduced. Under the situation where the compressed air is injected by the suction and the pressure member side air blowing part 59, the side seal part 4 is fused by simultaneously irradiating the laser beam 30 and dividing the diaper continuous body 10. Form. After the side seal part 4 is formed simultaneously with the division of the diaper continuous body 10, in the swinging process state B2, the support member side air blowing part 29 is arranged to be spaced apart from the support member side opening 27 to the second surface 21b side. Is used to inject compressed air toward the support member side opening 27. The jet of compressed air by the support member side air blowing part 29 is performed halfway in the open state A.

以上のとおり、本実施形態においては、照射ヘッド３５からレーザー光３０を照射する前に、集塵部材２８による吸引を開始し、加圧部材側空気吹出部５９による空気の吹き出しを開始している。その為、レーザー式接合装置２０は、支持部材２１の第１面２１ａ上に支持されたおむつ連続体１０に、支持部材側開口部２７に沿って照射ヘッド３５からレーザー光３０を照射して、おむつ連続体１０をその幅方向にわたって分断するのと同時に、この分断の縁部を重なった状態で融着してサイドシール部４を製造するとともに、分断によって生じたガスを、加圧部材側空気吹出部５９から空気を吹き出して支持部材２１の第２面２１ｂ側に飛ばし、集塵部材２８によって吸引し除去するようになっている。   As described above, in the present embodiment, before the laser beam 30 is irradiated from the irradiation head 35, the suction by the dust collecting member 28 is started and the blowing of air by the pressurizing member side air blowing portion 59 is started. . Therefore, the laser bonding apparatus 20 irradiates the diaper continuous body 10 supported on the first surface 21a of the support member 21 with the laser light 30 from the irradiation head 35 along the support member side opening 27, At the same time that the diaper continuous body 10 is divided in the width direction, the side seal portion 4 is manufactured by fusing the divided edges in an overlapping state, and the gas generated by the division is supplied to the pressure member side air. Air is blown out from the blow-out portion 59 and blown to the second surface 21 b side of the support member 21, and is sucked and removed by the dust collecting member 28.

そして、集塵部材２８による吸引と加圧部材側空気吹出部５９による空気の吹き出しを、おむつ連続体１０の分断と同時にサイドシール部４を形成した後も行う。また、その後の揺動過程状態Ｂ２において、支持部材側空気吹出部２９による空気の吹き出しを開始している。その為、レーザー式接合装置２０は、支持部材２１の第１面２１ａ上に支持されたおむつ連続体１０に、支持部材側開口部２７に沿って照射ヘッド３５からレーザー光３０を照射して、おむつ連続体１０をその幅方向にわたって分断した後、分断によって生じたガスを、加圧部材側空気吹出部５９から空気を吹き出して支持部材２１の第２面２１ｂ側に飛ばし、集塵部２８材によって吸引し除去するとともに、該分断によって生じたガスを、支持部材側空気吹出部２９から空気を吹き出して支持部材側開口部２７から除去するようになっている。   The suction by the dust collecting member 28 and the blowing of air by the pressure member-side air blowing portion 59 are performed after the side seal portion 4 is formed simultaneously with the division of the diaper continuous body 10. Further, in the subsequent swinging process state B2, air blowing by the support member side air blowing portion 29 is started. Therefore, the laser bonding apparatus 20 irradiates the diaper continuous body 10 supported on the first surface 21a of the support member 21 with the laser light 30 from the irradiation head 35 along the support member side opening 27, After the diaper continuous body 10 is divided in the width direction, the gas generated by the division is blown out from the pressurizing member side air blowing part 59 to the second surface 21b side of the support member 21, and the dust collecting part 28 material. The gas generated by the division is removed from the support member side opening 27 by blowing air from the support member side air blowing portion 29.

以下、更に具体的に説明する。図１０（ａ）ないし（ｃ）には、揺動過程状態Ｂ１にある加圧部材２６が加圧状態Ｃとなり、その後の揺動過程状態Ｂ２となるまでの状態が順次示されている。図１０（ａ）は、加圧部材２６が加圧状態Ｃになる直前の状態を示している。この状態においては、加圧部材２６の局所加圧部材５４は、支持部材２１の第１面２１ａに支持されたおむつ連続体１０に当接していない。また、集塵部材２８による吸引を開始しており、加圧部材側空気吹出部５９による空気の吹き出しも開始している。   More specific description will be given below. FIGS. 10A to 10C sequentially show the state until the pressing member 26 in the swing process state B1 is in the pressurized state C and then becomes the subsequent swing process state B2. FIG. 10A shows a state immediately before the pressurizing member 26 enters the pressurized state C. In this state, the local pressure member 54 of the pressure member 26 is not in contact with the diaper continuous body 10 supported by the first surface 21 a of the support member 21. Further, the suction by the dust collecting member 28 is started, and the blowing of air by the pressurizing member side air blowing portion 59 is also started.

図１０（ａ）に示す状態から揺動運動が進行すると、集塵部材２８による吸引と加圧部材側空気吹出部５９による空気の吹き出しとを行っている状況下で、図１０（ｂ）に示すとおり、加圧部材２６がおむつ連続体１０に当接する。この場合、支持部材側開口部２７を挟んだ加圧部材２６における一対の局所加圧部材５４，５４の先端の加圧面５４Ａがおむつ連続体１０を局所的に加圧して押さえ付ける。つまり、支持部材２１の第１面２１ａ上に支持されたおむつ連続体１０は、支持部材側開口部２７を挟んだ両側の位置において、局所加圧部材５４によって局所的に加圧される。この位置にのみ局所的に加圧を行うことで、一対の局所加圧部材５４に位置するおむつ連続体１０は、それを構成する複数枚のシートが確実に密着するようになる。この局所加圧によって実現された密着状態下におむつ連続体１０に向けてレーザー光３０が照射される。そして、レーザー光３０の照射に起因して発生したガスは、図１０（ｂ）に示すとおり、各加圧部材側空気吹出部５９を用いて加圧部材側開口部５５に向かって噴射された圧縮空気により、加圧部材側開口部５５を介して、加圧部材側開口部５５に対向して配される支持部材側開口部２７を通って支持部材２１の第２面２１ｂ側に飛ばされ、集塵部２８材によって吸引除去される。また、加圧部材２６の本体中空部５１内にある前記ガスは、加圧部材２６の接続部材５３に接続された吸引装置（図示せず）を動作させることで、吸引される。従って、支持部材２及び加圧部材２６への樹脂ヒューム等を含むガスの付着を防ぐことができ、樹脂ヒュームに起因する発火等の不都合を効果的に防止することができる。また、支持部材２及び加圧部材２６へ付着した樹脂ヒュームの堆積物が出来難く、該堆積物が製品であるおむつ１に乗り移ることが起こり難く、柔軟性、肌触りに優れた製品を製造することができる。   When the swinging motion proceeds from the state shown in FIG. 10A, under the situation where the suction by the dust collecting member 28 and the blowing of air by the pressurizing member side air blowing portion 59 are performed, FIG. As shown, the pressing member 26 contacts the diaper continuous body 10. In this case, the pressure surface 54A at the tip of the pair of local pressure members 54, 54 in the pressure member 26 sandwiching the support member side opening 27 locally presses and presses the diaper continuous body 10. That is, the diaper continuous body 10 supported on the first surface 21 a of the support member 21 is locally pressurized by the local pressure member 54 at positions on both sides of the support member side opening 27. By applying pressure locally only at this position, the diaper continuous body 10 positioned on the pair of local pressure members 54 ensures that a plurality of sheets constituting it are in close contact with each other. The laser beam 30 is irradiated toward the diaper continuum 10 in a close contact state realized by this local pressurization. Then, the gas generated due to the irradiation of the laser beam 30 was jetted toward the pressurizing member side opening 55 using each pressurizing member side air blowing portion 59 as shown in FIG. The compressed air is blown to the second surface 21 b side of the support member 21 through the support member-side opening 27 arranged to face the pressure member-side opening 55 through the pressure member-side opening 55. Then, it is sucked and removed by the dust collecting part 28 material. The gas in the main body hollow portion 51 of the pressurizing member 26 is sucked by operating a suction device (not shown) connected to the connection member 53 of the pressurizing member 26. Therefore, it is possible to prevent the gas including resin fume and the like from adhering to the support member 2 and the pressure member 26, and it is possible to effectively prevent inconveniences such as ignition caused by the resin fume. Further, it is difficult to produce a resin fume deposit adhering to the support member 2 and the pressure member 26, and it is difficult for the deposit to transfer to the diaper 1 as a product, and to produce a product excellent in flexibility and touch. Can do.

図１０（ｂ）に示す状態から揺動運動が進行すると、集塵部材２８による吸引を終了する。そして、加圧部材側空気吹出部５９による空気の吹き出しを継続して行っていると共に、支持部材側空気吹出部２９による空気の吹き出しを開始した状況下で、図１０（ｃ）に示すとおり、加圧部材２６が、製造されたおむつ１から離間し加圧状態を開放する。分断によって生じたガスは、各加圧部材側空気吹出部５９を用いて加圧部材側開口部５５に向かって噴射された圧縮空気により、加圧部材２６の本体部５０Ａの内部及び加圧部材側開口部５５に付着することができず、樹脂ヒュームの堆積物が出来難い。また、分断によって生じたガスは、支持部材側空気吹出部２９を用いて支持部材側開口部２７に向かって噴射された圧縮空気により、支持部材側開口部２７に付着することができず、樹脂ヒュームの堆積物が出来難い。その為、これらの堆積物が製品であるおむつ１に乗り移ることが起こり難く、柔軟性、肌触りに優れた製品を製造することができる。尚、図１０（ｃ）に示す状態から揺動運動が進行すると、加圧部材側空気吹出部５９による空気の吹き出しを終了した後、支持部材側空気吹出部２９による空気の吹き出しを終了する。   When the rocking motion proceeds from the state shown in FIG. 10B, the suction by the dust collecting member 28 is finished. And while continuing blowing of the air by the pressurization member side air blowing part 59, in the situation which started blowing of the air by the support member side air blowing part 29, as shown in FIG.10 (c), The pressure member 26 is separated from the manufactured diaper 1 to release the pressure state. The gas generated by the division is compressed inside the main body 50A of the pressurizing member 26 and the pressurizing member by the compressed air injected toward the pressurizing member side opening 55 using the pressurizing member side air blowing portions 59. It cannot adhere to the side opening 55 and it is difficult to deposit resin fume. Further, the gas generated by the division cannot be attached to the support member side opening portion 27 by the compressed air injected toward the support member side opening portion 27 using the support member side air blowing portion 29, and the resin It is difficult to deposit fume. Therefore, it is difficult for these deposits to transfer to the diaper 1 as a product, and a product excellent in flexibility and touch can be manufactured. When the swing motion proceeds from the state shown in FIG. 10C, after the air blowing by the pressurizing member side air blowing portion 59 is finished, the air blowing by the support member side air blowing portion 29 is finished.

更に本実施形態においては、おむつ連続体１０を、支持部材側開口部２７を挟んだ両側の位置においてのみ局所的に加圧し、その局所加圧状態下にレーザー光３０を照射しているので、おむつ連続体１０を構成する各シートどうしの融着を確実に行うことができ、十分な強度を有する融着部４０（図２及び図１２参照）を形成することができる。   Further, in the present embodiment, the diaper continuous body 10 is locally pressurized only at positions on both sides of the support member side opening 27, and the laser light 30 is irradiated under the locally pressurized state. The sheets constituting the diaper continuous body 10 can be reliably fused to each other, and the fused portion 40 (see FIGS. 2 and 12) having sufficient strength can be formed.

以上のとおり、本実施形態においては、第１面２１ａ及びそれと反対側に位置する第２面２１ｂを有する支持部材２１における該第１面２１ａ上に、おむつ連続体１０を連続搬送しつつ、おむつ連続体１０をその長手方向にわたって支持させ、支持部材２１の第１面２１ａ上に支持されたおむつ連続体１０を加圧部材２６を用いて加圧し、支持部材２１における第２面２１ｂ側に配置され、かつレーザー光３０を集光するレンズを有する照射ヘッド３５から、支持部材２１の第１面２１ａ上に加圧して支持されたおむつ連続体１０に向けてレーザー光３０を照射する工程を有する。該工程においては、レーザー光３０を照射することによって、おむつ連続体１０を分断するのと同時に、その分断によって生じた前記加圧状態にある複数枚のシート（外装体３）の切断縁部どうしを重なった状態で融着させて、サイドシール部４を形成している（サイドシール部形成工程）。   As described above, in the present embodiment, the diaper continuous body 10 is continuously conveyed on the first surface 21a of the support member 21 having the first surface 21a and the second surface 21b located on the opposite side of the first surface 21a. The continuous body 10 is supported over its longitudinal direction, and the diaper continuous body 10 supported on the first surface 21a of the support member 21 is pressurized using the pressure member 26 and disposed on the second surface 21b side of the support member 21. And irradiating the laser beam 30 from the irradiation head 35 having a lens for condensing the laser beam 30 toward the diaper continuum 10 supported by being pressed onto the first surface 21 a of the support member 21. . In this step, the diaper continuous body 10 is divided by irradiating the laser beam 30, and at the same time, the cutting edges of the plurality of sheets (exterior body 3) in the pressurized state generated by the division are separated. The side seal portions 4 are formed by fusing in a state where they are overlapped (side seal portion forming step).

図１１（ａ）ないし（ｃ）は、レーザー式接合装置２０を用いておむつ連続体１０（帯状のシート積層体）を分断するのと同時にサイドシール部４（シール縁部）を形成する様子を説明する図である。図１１（ａ）には、おむつ連続体１０のレーザー光３０による分断予定部分１０Ｃ（サイドシール部４の形成予定部位）及びその近傍が模式的に示されている。図示の態様におけるおむつ連続体１０の分断予定部分１０Ｃは、おむつ連続体１０の吸収性本体２が配置されていない領域における長手方向（搬送方向Ｄ）の中央である。斯かる分断予定部分１０Ｃは、ウエスト開口部８（図１参照）の開口端部及びその近傍が、８枚のシートが重ねられた８層構造部分、それ以外の部分が、４枚のシートが重ねられた４層構造部分となっている。４層構造部分は、図１１（ａ）に示すように、腹側部１Ａにおける１枚の外装体３を構成する２枚のシート（外層シート３１及び内層シート３２）と、背側部１Ｂにおける１枚の外装体３を構成する同じく２枚のシート３１，３２とからなり、これら４枚のシートが積層されて構成されている。一方、８層構造部分は、前述したように、おむつ連続体１０の製造時に帯状の外装体３の両側部３ａ，３ａが吸収性本体２の長手方向両端部を覆うように折り返されている（図３及び図４参照）ことに起因して、腹側部１Ａ及び背側部１Ｂそれぞれに外装体３が２枚存しかつこれら計４枚の外装体３，３が積層されているので、結果として８枚のシート３１，３２が積層されて構成されている。なお、４層構造部分及び８層構造部分それぞれにおいて、互いに重なり合うシート３１，３２間には、ウエスト部弾性部材５、胴回り部弾性部材６等の弾性部材が介在配置されている場合があるが、先に説明した図４では、説明容易の観点から、該弾性部材の図示を省略している。以下、主として、４層構造部分について説明するが、特に断らない限り、８層構造部分も４層構造部分と同様に構成されサイドシール部４が形成される。   11A to 11C show a state in which the side seal portion 4 (seal edge) is formed at the same time when the diaper continuous body 10 (band-shaped sheet laminate) is divided by using the laser bonding apparatus 20. It is a figure explaining. FIG. 11A schematically shows a portion 10 </ b> C scheduled to be divided by the laser beam 30 of the diaper continuum 10 (a portion where the side seal portion 4 is to be formed) and the vicinity thereof. 10 C of division | segmentation scheduled parts of the diaper continuous body 10 in the aspect of illustration are the centers of the longitudinal direction (conveyance direction D) in the area | region where the absorptive main body 2 of the diaper continuous body 10 is not arrange | positioned. Such a portion 10C to be divided includes an end portion of the waist opening 8 (see FIG. 1) and its vicinity, an eight-layer structure portion in which eight sheets are stacked, and the other portions are four sheets. It is a four-layer structure part that is superimposed. As shown in FIG. 11A, the four-layer structure portion includes two sheets (an outer layer sheet 31 and an inner layer sheet 32) constituting one exterior body 3 in the ventral side part 1A, and a back side part 1B. It consists of the same two sheets 31 and 32 that constitute one exterior body 3, and these four sheets are laminated. On the other hand, as described above, the eight-layer structure portion is folded so that both side portions 3a and 3a of the strip-shaped outer package 3 cover both longitudinal ends of the absorbent main body 2 when the diaper continuous body 10 is manufactured ( (See FIG. 3 and FIG. 4), because there are two exterior bodies 3 on each of the abdominal part 1A and the back side part 1B, and these four exterior bodies 3, 3 are laminated, As a result, eight sheets 31 and 32 are laminated. In each of the four-layer structure portion and the eight-layer structure portion, elastic members such as the waist elastic member 5 and the waistline elastic member 6 may be interposed between the overlapping sheets 31 and 32, In FIG. 4 described above, the elastic member is omitted from the viewpoint of easy explanation. Hereinafter, the 4-layer structure portion will be mainly described, but unless otherwise specified, the 8-layer structure portion is configured in the same manner as the 4-layer structure portion, and the side seal portion 4 is formed.

おむつ連続体１０における４層構造の分断予定部分１０Ｃにおいて、おむつ連続体１０の一方の面である支持部材２１との当接面を構成する外層シート３１及び該一方の面を構成するシート以外のシート（内層シート３２）は、いずれか一方又は両方が、レーザー光３０を吸収して発熱するシートである。図示の態様においては、分断予定部分１０Ｃを構成する４枚のシート３１，３２のすべてが、レーザー光３０を吸収して発熱するシート（不織布）である。また、分断予定部分１０Ｃ及びその近傍における互いに重なり合う外層シート３１及び内層シート３２の２枚のシート間は、レーザー光３０の照射前において、接着剤等により接合されていてもよく、全く接合されていなくてもよい。   In the parting planned portion 10C of the four-layer structure in the diaper continuous body 10, the outer layer sheet 31 constituting the contact surface with the support member 21, which is one surface of the diaper continuous body 10, and the sheet other than the sheet constituting the one surface One or both of the sheets (inner layer sheet 32) absorb the laser beam 30 and generate heat. In the illustrated embodiment, all of the four sheets 31 and 32 constituting the parting planned portion 10 </ b> C are sheets (nonwoven fabrics) that absorb the laser beam 30 and generate heat. Further, the two sheets of the outer layer sheet 31 and the inner layer sheet 32 that overlap each other in the portion 10C to be divided and in the vicinity thereof may be bonded by an adhesive or the like before irradiation with the laser beam 30, or are not bonded at all. It does not have to be.

おむつ連続体１０は、図１１（ｂ）に示すように、一方の面１０ａが支持部材２１に当接しかつ分断予定部分１０Ｃ（サイドシール部４の形成予定部位）が支持部材側開口部２７上に位置するように、矢印Ｄ方向に回転する支持部材２１上に導入されるとともに、他方の面１０ｂに加圧部材２６の局所加圧部材５４が押し付けられることによって、矢印Ｄ方向に搬送されつつ厚み方向に加圧（圧縮）される。そして、斯かる搬送中かつ加圧状態の分断予定部分１０Ｃに対して、支持部材２１側から支持部材側開口部２７を介してレーザー光３０が照射される。前述したように、レーザー光３０の照射点は、円筒ロール２３の周方向に任意に移動可能に構成されており、支持部材側開口部２７の該周方向に沿った移動に追従して移動するように設定されているので、支持部材側開口部２７上に位置する分断予定部分１０Ｃには、その搬送中にレーザー光３０が一定時間連続的に照射される。   As shown in FIG. 11 (b), the diaper continuous body 10 has one surface 10 a in contact with the support member 21, and a portion 10 C (part where the side seal portion 4 is to be formed) is on the support member side opening 27. And is introduced onto the support member 21 that rotates in the direction of arrow D, and the local pressure member 54 of the pressure member 26 is pressed against the other surface 10b while being conveyed in the direction of arrow D. Pressurized (compressed) in the thickness direction. Then, the laser beam 30 is irradiated from the support member 21 side through the support member side opening 27 to the parting portion 10 </ b> C in the pressurized state under conveyance. As described above, the irradiation point of the laser beam 30 is configured to be arbitrarily movable in the circumferential direction of the cylindrical roll 23 and moves following the movement of the support member side opening 27 along the circumferential direction. Therefore, the laser beam 30 is continuously irradiated for a certain period of time during the conveyance to the parting planned portion 10C located on the support member side opening 27.

４層構造の分断予定部分１０Ｃにレーザー光３０が照射されると、該分断予定部分１０Ｃに存するシート３１，３２の形成材料（繊維等）は、レーザー光３０の直射による発熱によって気化して消失し、該分断予定部分１０Ｃの近傍に存する該形成材料は、レーザー光３０によって間接的に熱せされて溶融する。気化したガスは、上述のとおり、各加圧部材側空気吹出部５９を用いて加圧部材側開口部５５に向かって噴射された圧縮空気により支持部材２１の第２面２１ｂ側に飛ばされ、集塵部２８材によって吸引されて外部に排出される。   When the laser beam 30 is irradiated to the parting portion 10C having the four-layer structure, the forming materials (fibers, etc.) of the sheets 31 and 32 existing in the parting portion 10C are vaporized by the heat generated by the direct irradiation of the laser light 30 and disappear. The forming material existing in the vicinity of the parting portion 10 </ b> C is indirectly heated by the laser beam 30 and melted. As described above, the vaporized gas is blown to the second surface 21b side of the support member 21 by the compressed air injected toward the pressurizing member side opening 55 using each pressurizing member side air blowing portion 59, It is sucked by the dust collector 28 and discharged to the outside.

分断予定部分１０Ｃが溶融する結果、図１１（ｃ）に示すように、４層構造の分断予定部分１０Ｃが溶断されて、おむつ連続体１０から１つの枚葉のシート積層体（おむつ前駆体）が切り分けられる形で、該おむつ連続体１０が分断されるのと同時に、その分断によって生じた該枚葉のシート積層体における４枚のシート３１，３２の切断縁部どうし、及び、切り分けられた該おむつ連続体１０における４枚のシート３１，３２の切断縁部どうしが、それぞれ融着する。これらの切断縁部どうしは、それぞれ、その形成前（レーザー光３０の照射によるおむつ連続体１０の分断前）から、支持部材２１と加圧部材２６とに挟まれることによって加圧状態（圧縮状態）とされていたものである。図示の態様のおむつの製造方法によれば、このように、一回のレーザー光の照射で、帯状の外装体３の分断と、その分断によって生じた２箇所の加圧状態にある外装体３の切断縁部どうしの融着とを同時に実施するため、２箇所の融着箇所を二回のレーザー光の照射で融着する方法に比べ、おおよそ半分のレーザー出力で融着と分断とを同一工程で実施でき、おむつ１を効率よく製造することができる。   As a result of melting the parting planned portion 10C, as shown in FIG. 11 (c), the parting planned part 10C having a four-layer structure is melted to form a single sheet stack (diaper precursor) from the diaper continuous body 10. When the diaper continuous body 10 is divided, the cut edges of the four sheets 31 and 32 in the sheet stack of the single sheets generated by the division are cut and separated. The cut edges of the four sheets 31 and 32 in the diaper continuous body 10 are fused to each other. These cut edges are respectively pressed (compressed) by being sandwiched between the support member 21 and the pressure member 26 from before the formation (before the diaper continuous body 10 is divided by irradiation with the laser beam 30). ). According to the diaper manufacturing method of the illustrated embodiment, the strip-shaped exterior body 3 is divided by the single laser light irradiation, and the exterior body 3 in the two pressurized states generated by the division is thus obtained. In order to carry out the fusion of the cutting edges at the same time, the fusion and separation are the same with approximately half the laser output compared to the method of fusing the two fusion places with two laser irradiations. The diaper 1 can be manufactured efficiently by performing the process.

シート３１，３２の切断縁部は、レーザー光３０の照射中及び照射終了直後は、発熱して溶融状態となっているが、レーザー光３０の照射によっておむつ連続体１０から切り分けられた１つの枚葉のおむつ前駆体及び該おむつ連続体１０それぞれの、支持部材２１と加圧部材２６とによる加圧状態が保持されたまま、照射終了後からは外気によって速やかに冷却されて固化し、該切断縁部の形成材料（繊維等）が溶融一体化した融着部４０となる。こうして、融着部４０が形成されることによって、１個のおむつ１における一対のサイドシール部４，４のうちの一方が形成される。本実施形態においては、上述のとおり、分断によって生じたガスは、各加圧部材側空気吹出部５９を用いて加圧部材側開口部５５に向かって噴射された圧縮空気により支持部材２１の第２面２１ｂ側に飛ばされ、集塵部２８材によって吸引されて外部に排出される。また、分断によって生じたガスは、支持部材側空気吹出部２９を用いて噴射された圧縮空気により支持部材側開口部２７から除去される。このように高温のヒュームガスが素早く除去され、そのことに起因して、融着部４０が固化するまでの時間を短くできるという利点がある。   The cut edges of the sheets 31 and 32 are heated and melted during the irradiation of the laser beam 30 and immediately after the end of the irradiation, but are separated from the diaper continuous body 10 by the irradiation of the laser beam 30. Each of the leaf diaper precursor and the diaper continuous body 10 is rapidly cooled and solidified by the outside air after the irradiation is completed while the pressure state of the support member 21 and the pressure member 26 is maintained. The edge forming material (fiber or the like) becomes the fused portion 40 which is fused and integrated. Thus, by forming the fused part 40, one of the pair of side seal parts 4, 4 in one diaper 1 is formed. In the present embodiment, as described above, the gas generated by the division is the first of the support member 21 by the compressed air injected toward the pressurizing member side opening 55 using the pressurizing member side air blowing portions 59. It is blown to the second surface 21b side, sucked by the dust collecting portion 28 material, and discharged to the outside. Further, the gas generated by the separation is removed from the support member side opening 27 by the compressed air injected using the support member side air blowing portion 29. As described above, there is an advantage that the high-temperature fume gas is quickly removed, and the time until the fused portion 40 is solidified can be shortened.

こうして１箇所の分断予定部分１０Ｃ（サイドシール部４の形成予定部位）が分断されると、レーザー光３０は、その照射点が搬送方向Ｄとは逆方向に隣接する別の開口部２７に当たるように移動され、該別の開口部２７を介してその上に位置する別の分断予定部分１０Ｃに照射される。これにより、別の分断予定部分１０Ｃが前記と同様に分断・融着され、先に形成されたサイドシール部４と対をなす他方のサイドシール部４（融着部４０）が形成される。以後、同様の操作を繰り返すことにより、一対のサイドシール部４，４を有する外装体３を具備するパンツ型使い捨ておむつ１が連続的に製造される。   In this way, when one portion 10C (scheduled portion for forming the side seal portion 4) is divided, the laser beam 30 is such that the irradiation point hits another opening 27 adjacent in the direction opposite to the conveyance direction D. And is irradiated to another parting planned portion 10C located thereabove through the other opening 27. As a result, another part 10C to be divided is divided and fused in the same manner as described above, and the other side seal part 4 (fused part 40) that forms a pair with the previously formed side seal part 4 is formed. Thereafter, by repeating the same operation, the pants-type disposable diaper 1 including the exterior body 3 having the pair of side seal portions 4 and 4 is continuously manufactured.

こうして製造されたおむつ１においては、図１２に示すとおり、サイドシール部４に、前身頃Ｆにおける外装体３の縁部と後身頃Ｒにおける外装体３の縁部が、該サイドシール部の長手方向に延在する連続線状の融着部４０で結合したシール縁部４１が形成されている。また、融着部４０の厚みＴが、外装体の合計厚み（Ｔａ＋Ｔｂ）と同じか、それより小さくなる。   In the diaper 1 manufactured in this way, as shown in FIG. 12, the side seal portion 4 has an edge portion of the exterior body 3 in the front body F and an edge portion of the exterior body 3 in the back body R as the longitudinal length of the side seal portion. A seal edge 41 is formed which is joined by a continuous linear fusion part 40 extending in the direction. In addition, the thickness T of the fused part 40 is equal to or smaller than the total thickness (Ta + Tb) of the exterior body.

またシール縁部４１は、図１２に示すとおり、着用時におけるサイドシール部４が延びる方向と直交する断面において、融着部４０からなる外縁４ａが、おむつ１の内方に向かって窪んだ形状を有している。また、そのシール縁部４１は、図１２に示すとおり、内外方向Ｐにおける融着部４０より外側に、外装体３の構成繊維が繊維形状を残した部分を有しない。そのため、外観上の見栄えもよく、また、肌触りが向上する。   Further, as shown in FIG. 12, the seal edge 41 has a shape in which the outer edge 4 a made of the fused portion 40 is recessed toward the inside of the diaper 1 in a cross section orthogonal to the direction in which the side seal portion 4 extends when worn. have. Further, as shown in FIG. 12, the seal edge portion 41 does not have a portion where the constituent fibers of the exterior body 3 leave the fiber shape outside the fused portion 40 in the inner / outer direction P. Therefore, the appearance is good and the touch is improved.

レーザー光について説明すると、おむつ連続体１０（帯状の外装体３）に照射するレーザー光としては、外装体３を構成するシート（外層シート３１及び内層シート３２）に吸収され該シートを発熱させる波長のレーザー光を用いる。ここで、「外装体を構成するシート」は、外装体の一方の面（支持部材２１との当接面）を構成するシート（例えば前述した態様では外層シート３１）に限定されず、外装体を構成するシートであればどれであってもよい。外装体に照射するレーザー光が、該外装体を構成する個々のシートについて、該シートに吸収されて該シートを発熱させる波長であるか否かは、シートの材質と、使用するレーザー光の波長との関係で決まる。外装体を構成するシートが、使い捨ておむつや生理用ナプキン等の吸収性物品（サニタリー用品）の製造に汎用される合成樹脂製の不織布やフィルムである場合、レーザー光としては、ＣＯ2レーザー、ＹＡＧレーザー、ＬＤレーザー（半導体レーザー）、ＹＶＯ４レーザー、ファイバーレーザー等を用いることが好ましい。また、外装体を構成するシートが、合成樹脂として、ポリエチレン、ポリエチレンテレフタレート、ポリプロピレン等を含む場合、該シートに吸収され該シートを良好に発熱させ得る波長としては、例えば、８．０μｍ以上１５．０μｍ以下を用いることが好ましく、高出力のレーザー装置が存在するＣＯ2レーザーの発振波長の９．０μｍ以上１１．０μｍ以下を用いることが特に好ましい。レーザー光のスポット径、レーザー出力等は、外装体を構成するシートの材質や厚み等を考慮して適宜選択することができる。 Explaining the laser beam, the wavelength of the laser beam irradiated to the diaper continuous body 10 (band-shaped outer package 3) is absorbed by the sheets (outer layer sheet 31 and inner layer sheet 32) constituting the outer package 3 and generates heat. The laser beam is used. Here, the “sheet constituting the exterior body” is not limited to the sheet (for example, the outer layer sheet 31 in the above-described embodiment) constituting one surface of the exterior body (the contact surface with the support member 21). Any sheet may be used as long as it constitutes. Whether or not the laser light applied to the exterior body is a wavelength that is absorbed by the sheet and generates heat for the individual sheets constituting the exterior body depends on the material of the sheet and the wavelength of the laser light to be used. It depends on the relationship. When the sheet constituting the outer package is a non-woven fabric or film made of synthetic resin that is widely used in the manufacture of absorbent articles (sanitary products) such as disposable diapers and sanitary napkins, the laser beam may be CO 2 laser, YAG It is preferable to use a laser, an LD laser (semiconductor laser), a YVO 4 laser, a fiber laser, or the like. Moreover, when the sheet | seat which comprises an exterior body contains polyethylene, a polyethylene terephthalate, a polypropylene etc. as a synthetic resin, as a wavelength which can be absorbed by this sheet | seat and can make this sheet | seat generate | occur | produce favorably, 8.0 micrometers or more and 15. It is preferable to use 0 μm or less, and it is particularly preferable to use an oscillation wavelength of 9.0 μm or more and 11.0 μm or less of a CO 2 laser in which a high-power laser device exists. The spot diameter of laser light, laser output, and the like can be appropriately selected in consideration of the material and thickness of the sheet constituting the exterior body.

以上、本発明をその実施形態に基づいて説明したが、本発明は、上述した実施形態に制限されることなく適宜変更が可能である。例えば、帯状の外装体（シート積層体）は、図１１（ａ）に示す如き４枚のシートが重ねられたものの他、２枚、３枚又は５枚以上のシートが重ねられたものであってもよい。   As mentioned above, although this invention was demonstrated based on the embodiment, this invention can be suitably changed without being restrict | limited to embodiment mentioned above. For example, a strip-shaped outer package (sheet laminate) is a stack of four sheets as shown in FIG. 11 (a), or two, three, or five or more sheets. May be.

また、前記実施形態における外装体３は、図３に示すように、腹側部１Ａと背側部１Ｂとで分割されずに、腹側部１Ａ、股下部１Ｃ及び背側部１Ｂにわたる砂時計状等の連続した形状を有していたが、本発明の加工の対象となる外装体は、このような連続した形状に制限されず、例えば、着用者の腹側（前側）に配される腹側シート部材と、着用者の背側（後側）に配される背側シート部材とに分割されており、吸収性本体がこれら両シート部材に架け渡して固定されていてもよい。このような分割タイプの外装体を具備するパンツ型使い捨ておむつの製造方法における前記重合加圧工程は、吸収性本体が固定された帯状の外装体の前身頃側（帯状の腹側シート部材）と後身頃側（帯状の背側シート部材）とが重ね合わされた構成を有する帯状の外装体におけるサイドシール部の形成予定部位を加圧状態にする。   Moreover, as shown in FIG. 3, the exterior body 3 in the above embodiment is not divided into the ventral portion 1A and the dorsal portion 1B, but is an hourglass shape extending over the ventral portion 1A, the crotch 1C, and the dorsal portion 1B. However, the exterior body to be processed according to the present invention is not limited to such a continuous shape, and is, for example, an abdomen placed on the wearer's belly side (front side). It is divided | segmented into the side sheet | seat member and the back | dorsal sheet | seat member distribute | arranged to a wearer's back | dorsal side (rear side), and an absorptive main body may be bridge | crossed and fixed to these both sheet | seat members. In the method for producing a pants-type disposable diaper having such a split-type exterior body, the polymerization pressurizing step includes a front body side (a belt-like stomach side sheet member) of the belt-like exterior body to which the absorbent main body is fixed. A site where the side seal portion is to be formed in the belt-shaped exterior body having a configuration in which the back body side (band-shaped backside sheet member) is superimposed is brought into a pressurized state.

また、前記実施形態では、前記重合加圧工程の実施前に、図４に示すように、帯状の外装体３の搬送方向に沿う両側部３ａ，３ａ、すなわち、帯状の外層シート３１及び帯状の内層シート３２それぞれの搬送方向に沿う両側部を、吸収性本体２の長手方向両端部を覆うように折り返していたが、帯状の外層シート３１として、帯状の内層シート３２よりも幅方向（長手方向と直交する方向）の長さが長いものを用い、両シート３１，３２を重ね合わせたときに内層シート３２の側縁から外方に延出する、外層シート３１の延出部のみを、吸収性本体２の長手方向両端部を覆うように折り返してもよい。その場合、おむつ連続体１０の分断予定部分１０Ｃは、ウエスト開口部８の開口端部及びその近傍が、６枚のシートが重ねられた６層構造部分、それ以外の部分が、４枚のシートが重ねられた４層構造部分となる。また、帯状の外装体３の搬送方向に沿う両側部３ａ，３ａ、すなわち、帯状の外層シート３１及び帯状の内層シート３２それぞれの搬送方向に沿う両側部は、折り畳まなくてもよい。   Moreover, in the said embodiment, before implementation of the said superposition | polymerization pressurization process, as shown in FIG. 4, both side part 3a, 3a along the conveyance direction of the strip | belt-shaped exterior body 3, ie, the strip | belt-shaped outer-layer sheet | seat 31 and strip | belt-shaped. Although the both side parts along the conveyance direction of each inner layer sheet 32 were folded back so as to cover both ends in the longitudinal direction of the absorbent main body 2, the width direction (longitudinal direction) of the band-shaped outer layer sheet 31 was more than the band-shaped inner layer sheet 32. Absorbs only the extension part of the outer layer sheet 31 that extends outward from the side edge of the inner layer sheet 32 when the sheets 31 and 32 are overlapped. The body 2 may be folded back so as to cover both ends in the longitudinal direction. In that case, the parting plan part 10C of the diaper continuous body 10 is a six-layer structure part in which the opening end part of the waist opening part 8 and its vicinity are overlapped with six sheets, and the other part is four sheets. Becomes a four-layer structure part. Moreover, the both side parts 3a and 3a along the conveyance direction of the strip | belt-shaped exterior body 3, ie, the both sides along the conveyance direction of each of the strip | belt-shaped outer layer sheet 31 and the strip | belt-shaped inner layer sheet 32, do not need to be folded.

また前記実施形態においては、円筒ロール２３を備えたレーザー式接合装置２０を用いたが、円筒ロール２３に代えて平板状の部材を備えたレーザー式接合装置２０を用いてもよい。   Moreover, in the said embodiment, although the laser type joining apparatus 20 provided with the cylindrical roll 23 was used, it replaced with the cylindrical roll 23 and you may use the laser type joining apparatus 20 provided with the flat member.

また前記実施形態においては、図７及び図１０（ａ）に示すように、加圧部材側空気吹出部５９が本体部５０Ａの両側壁５０Ａ１に取り付けられ、加圧部材側開口部５５を挟んで一対で配されているが、一方の加圧部材側空気吹出部５９のみが取り付けられていてもよい。一方の加圧部材側空気吹出部５９のみを取り付ける場合、ヒュームガスの除去の観点から、集塵部材２８の吸引部材２８２に対向するように配置することが好ましい。   Moreover, in the said embodiment, as shown to FIG.7 and FIG.10 (a), the pressurization member side air blowing part 59 is attached to the both-sides wall 50A1 of 50 A of main-body parts, and the pressurization member side opening part 55 is pinched | interposed. Although it arrange | positions by a pair, only one pressurization member side air blowing part 59 may be attached. When only one pressure member-side air blowing part 59 is attached, it is preferable to dispose it so as to face the suction member 282 of the dust collecting member 28 from the viewpoint of removal of fume gas.

また前記実施形態は、シート融着体の一例としてのパンツ型使い捨ておむつに係るものであったが、本発明は、他の形態のシート融着体の製造にも同様に提供することができる。   Moreover, although the said embodiment concerns the underpants type disposable diaper as an example of a sheet | seat melt | fusion body, this invention can be provided similarly to manufacture of the sheet | seat melt | fusion body of another form.

前述した本発明の実施形態に関し、更に以下の付記（シート融着体の製造方法及び製造装置）を開示する。   In addition to the above-described embodiment of the present invention, the following additional notes (sheet fusion product manufacturing method and manufacturing apparatus) are disclosed.

＜１＞
複数枚のシートの縁部が重なった状態で融着したシール縁部を有するシート融着体の製造装置であって、
第１面及びそれと反対側に位置する第２面を有し、少なくとも一部に樹脂材を含む複数枚のシートが重ねられた帯状のシート積層体をその長手方向にわたって該第１面上に支持する支持部材と、
前記支持部材における前記第２面側に配置され、かつレーザー光を集光するレンズを有する照射ヘッドと、
前記支持部材の前記第１面上に支持された前記シート積層体を加圧する加圧部材とを具備し、
前記支持部材は、前記第２面側から照射されたレーザー光の通過可能な前記シート積層体の幅方向に長いスリット状の支持部材側開口部と、該支持部材側開口部から該第２面側に離間して配置され該支持部材側開口部に対向するように吸引開口部が形成された集塵部材と、該支持部材側開口部から該第２面側に離間して配置され該支持部材側開口部に向かって空気を吹き出す支持部材側空気吹出部とを有し、
前記加圧部材は、前記支持部材側開口部の延びる方向と同方向に延びかつ該支持部材側開口部と対向配置される加圧部材側開口部と、該加圧部材側開口部に向かって空気を吹き出す加圧部材側空気吹出部とを有しているシート融着体の製造装置。 <1>
An apparatus for producing a sheet fusion body having a seal edge fused in a state where edges of a plurality of sheets overlap with each other,
A belt-like sheet laminate having a first surface and a second surface located opposite to the first surface and a plurality of sheets including a resin material at least partially overlapped is supported on the first surface over the longitudinal direction. A supporting member to
An irradiation head disposed on the second surface side of the support member and having a lens for condensing laser light;
A pressurizing member that pressurizes the sheet laminate supported on the first surface of the support member;
The support member has a slit-like support member side opening that is long in the width direction of the sheet laminate through which the laser light irradiated from the second surface side can pass, and the second surface from the support member side opening. A dust collecting member that is spaced apart on the side and formed with a suction opening so as to face the opening on the supporting member side, and spaced apart from the supporting member side opening to the second surface side A support member side air blowing portion that blows out air toward the member side opening,
The pressure member extends in the same direction as the support member side opening and extends toward the support member side opening, and faces the pressure member side opening. An apparatus for producing a sheet fusion body having a pressure member-side air blowing section for blowing out air.

＜２＞
前記支持部材の前記第１面上に支持された前記シート積層体に、前記支持部材側開口部に沿って前記照射ヘッドからレーザー光を照射して、該シート積層体をその幅方向にわたって分断するのと同時に、この分断の縁部を重なった状態で融着して前記シール縁部を有するシート融着体を製造するとともに、分断によって生じたガスを、前記加圧部材側空気吹出部から空気を吹き出して前記支持部材の前記第２面側に飛ばし、前記集塵部材によって吸引し除去するようにした前記＜１＞に記載のシート融着体の製造装置。
＜３＞
前記支持部材の前記第１面上に支持された前記シート積層体に、前記支持部材側開口部に沿って前記照射ヘッドからレーザー光を照射して、該シート積層体をその幅方向にわたって分断した後、分断によって生じたガスを、前記加圧部材側空気吹出部から空気を吹き出して前記支持部材の前記第２面側に飛ばし、前記集塵部材によって吸引し除去するとともに、該分断によって生じたガスを、前記支持部材側空気吹出部から空気を吹き出して前記支持部材側開口部から除去するようにした前記＜１＞又は＜２＞に記載のシート融着体の製造装置。
＜４＞
前記加圧部材側空気吹出部は、前記加圧部材側開口部を挟んで一対配されている前記＜１＞〜＜３＞の何れか１に記載のシート融着体の製造装置。
＜５＞
前記支持部材が、外方を向く前記第１面と内方を向く前記第２面とを有し、かつ一方向に回転可能な円筒からなり、
前記円筒の周面に、該円筒の回転軸の軸長方向と平行な方向に一致して延びる前記スリット状の支持部材側開口部が、該円筒の周方向に所定間隔を置いて複数設けられており、
前記加圧部材は、前記支持部材の周方向と同方向に、かつ該支持部材の周速と同速で、該支持部材の周面に沿って周回可能になっており、
前記加圧部材は、該加圧部材が前記支持部材の周面に沿って周回している間、前記支持部材の前記第１面に対して接離動作を繰り返すようになっている前記＜１＞〜＜４＞の何れか１に記載のシート融着体の製造装置。
＜６＞
前記集塵部材及び前記支持部材側空気吹出部は複数配置され、
前記支持部材側開口部、前記集塵部材及び前記支持部材側空気吹出部は、前記支持部材の回転に伴って共に回転可能となっている前記＜５＞に記載のシート融着体の製造装置。
＜７＞
前記円筒の回転軸の軸長方向（前記シート積層体の幅方向）に関して、前記支持部材側開口部の長さは、前記支持部材に支持されるシート積層体の分断予定部分（サイドシール部）の長さよりも長い前記＜５＞又は＜６＞に記載のシート融着体の製造装置。
＜８＞
前記円筒の回転軸の軸長方向（シート積層体の幅方向）に関して、前記支持部材側空気吹出部の吹出し口の長さは、前記支持部材に支持されるシート積層体の分断予定部分（サイドシール部）の長さよりも長く、かつ前記支持部材側開口部の長さよりも短い前記＜５＞〜＜７＞の何れか１に記載のシート融着体の製造装置。
＜９＞
前記加圧部材が、前記加圧部材側開口部の延びる方向の一端にヒンジ構造の支持部を有し、該支持部を支点として、前記支持部材の回転軸を通る面内において揺動運動が可能になっており、それによって、該加圧部材が前記支持部材の前記第１面に対して接離動作をするようになっている前記＜５＞〜＜８＞の何れか１に記載のシート融着体の製造装置。 <2>
The sheet laminate supported on the first surface of the support member is irradiated with laser light from the irradiation head along the support member side opening, and the sheet laminate is divided in the width direction. At the same time, a sheet fusion body having the seal edge is manufactured by fusing the divided edges in an overlapped state, and the gas generated by the division is aired from the pressure member side air blowing portion. Is blown out to the second surface side of the support member, and sucked and removed by the dust collecting member.
<3>
The sheet laminate supported on the first surface of the support member was irradiated with laser light from the irradiation head along the support member-side opening, and the sheet laminate was divided in the width direction. After that, the gas generated by the division is blown out from the pressure member side air blowing portion, is blown to the second surface side of the support member, is sucked and removed by the dust collecting member, and is generated by the division. The apparatus for producing a sheet-fused body according to <1> or <2>, wherein the gas is blown out from the support member side air blowing portion to be removed from the support member side opening.
<4>
The apparatus for producing a sheet fusion body according to any one of <1> to <3>, wherein a pair of the pressure member side air blowing portions are arranged with the pressure member side opening interposed therebetween.
<5>
The support member includes the first surface facing outward and the second surface facing inward, and is formed of a cylinder rotatable in one direction,
A plurality of the slit-like support member side openings extending in a direction parallel to the axial length direction of the rotation axis of the cylinder are provided on the circumferential surface of the cylinder at predetermined intervals in the circumferential direction of the cylinder. And
The pressurizing member is capable of circling along the circumferential surface of the support member in the same direction as the circumferential direction of the support member and at the same speed as the circumferential speed of the support member.
The pressure member is configured to repeat the contact and separation operation with respect to the first surface of the support member while the pressure member is circling along the peripheral surface of the support member. >-<4> Any 1 item | term manufacturing apparatus of the sheet fusion body.
<6>
A plurality of the dust collecting members and the support member side air blowing portions are arranged,
The apparatus for manufacturing a sheet fusion body according to <5>, wherein the support member side opening, the dust collecting member, and the support member side air blowing part are rotatable together with the rotation of the support member. .
<7>
With respect to the axial length direction of the rotation axis of the cylinder (the width direction of the sheet laminate), the length of the opening on the support member side is the part to be divided (side seal portion) of the sheet laminate supported by the support member. The apparatus for producing a fused sheet according to <5> or <6>, which is longer than the length of <5>.
<8>
With respect to the axial length direction (the width direction of the sheet laminate) of the rotation axis of the cylinder, the length of the blowout port of the support member side air blowing portion is a portion to be divided (side) of the sheet laminate supported by the support member. The apparatus for producing a sheet fusion body according to any one of <5> to <7>, which is longer than a length of the seal portion) and shorter than a length of the support member side opening.
<9>
The pressure member has a hinge-structure support portion at one end in the direction in which the pressure member-side opening extends, and swinging motion is performed in a plane passing through the rotation shaft of the support member with the support portion as a fulcrum. <5> to <8> according to any one of <5> to <8>, wherein the pressure member is adapted to move toward and away from the first surface of the support member. Sheet fusion product manufacturing equipment.

＜１０＞
前記加圧部材は、本体中空部を有する本体部と、前記本体中空部と連通する加圧部材側開口部及び当該加圧部材側開口部を挟んで配される一対の局所加圧部材を有する加圧部とを備え、前記加圧部材側空気吹出部は前記本体中空部から前記加圧部材側開口部に向かって空気を吹き出す前記＜１＞〜＜９＞の何れか１に記載のシート融着体の製造装置。
＜１１＞
本体中空部は吸引装置と接続し、前記加圧部材側開口部を通じ、該本体中空部に向けて空気が吸引されるようになっている前記＜１０＞に記載のシート融着体の製造装置。
＜１２＞
一対の前記局所加圧部材は、それぞれ前記ジート積層体を加圧する加圧面を有し、前記本体部から前記加圧面に向かって互いに近づくように傾斜して配され、
前記加圧部材側空気吹出部の空気の噴射方向が、前記局所加圧部材の傾斜面の傾斜方向と一致している前記＜１０＞又は＜１１＞に記載のシート融着体の製造装置。
＜１３＞
前記吸引開口部は、前記支持部材側開口部に向かって開口面積が漸次広くなるように形成されている前記＜１＞〜＜１２＞の何れか１に記載のシート融着体の製造装置。
＜１４＞
前記支持部材側空気吹出部は、前記支持部材側開口部に向かって開口した吹出し口を有している前記＜１＞〜＜１３＞の何れか１に記載のシート融着体の製造装置。
＜１５＞
前記加圧部材側開口部は、その幅（幅方向に沿った長さ）が、前記支持部材における前記支持部材側開口部の幅（支持部材の周方向に沿った長さ）よりも大きくなっている前記＜１＞〜＜１４＞の何れか１に記載のシート融着体の製造装置。
＜１６＞
長手方向において、前記加圧部材側空気吹出部の吹出し口の長さは、前記支持部材に支持されるシート積層体の連続体の分断予定部分（サイドシール部）の長さよりも長い前記＜１＞〜＜１５＞の何れか１に記載のシート融着体の製造装置。 <10>
The pressure member has a main body portion having a main body hollow portion, a pressure member side opening communicating with the main body hollow portion, and a pair of local pressure members disposed with the pressure member side opening interposed therebetween. The sheet according to any one of <1> to <9>, further including a pressurizing unit, wherein the pressurizing member side air blowing unit blows air from the main body hollow portion toward the pressurizing member side opening. Fusion production equipment.
<11>
The apparatus for producing a sheet fusion body according to <10>, wherein the main body hollow portion is connected to a suction device, and air is sucked toward the main body hollow portion through the opening on the pressure member side. .
<12>
The pair of local pressurizing members each have a pressurizing surface that pressurizes the jeet laminate, and is arranged to be inclined so as to approach each other from the main body part toward the pressurizing surface.
The apparatus for manufacturing a sheet fusion body according to <10> or <11>, wherein an air injection direction of the pressurizing member side air blowing portion coincides with an inclination direction of an inclined surface of the local pressurizing member.
<13>
The apparatus for producing a sheet fusion body according to any one of <1> to <12>, wherein the suction opening is formed so that an opening area gradually increases toward the support member side opening.
<14>
The apparatus for manufacturing a sheet fusion body according to any one of <1> to <13>, wherein the support member-side air blowing portion has a blowing port that opens toward the support member-side opening.
<15>
The pressure member-side opening has a width (length along the width direction) larger than a width of the support member-side opening (length along the circumferential direction of the support member) in the support member. The apparatus for producing a sheet fusion body according to any one of <1> to <14>.
<16>
In the longitudinal direction, the length of the outlet of the pressurizing member side air outlet is longer than the length of the part to be divided (side seal part) of the continuous sheet laminate supported by the support member. >-<15> any 1 item | term manufacturing apparatus of the sheet fusion body.

＜１７＞
複数枚のシートの縁部が重なった状態で融着したシール縁部を有するシート融着体の製造方法であって、
第１面及びそれと反対側に位置する第２面を有する支持部材における該第１面上に、少なくとも一部に樹脂材を含む複数枚のシートが重ねられた帯状のシート積層体をその長手方向にわたって支持させ、該支持部材の該第１面上に支持された該シート積層体を加圧部材を用いて加圧し、
前記支持部材における前記第２面側に配置され、かつレーザー光を集光するレンズを有する照射ヘッドから、該支持部材の該第１面上に加圧して支持された前記シート積層体に向けてレーザー光を照射する工程を有し、
レーザー光を、前記支持部材に設けられた、前記シート積層体の幅方向に長いスリット状の支持部材側開口部に沿って該シート積層体に照射して、該シート積層体をその幅方向にわたって分断するのと同時に、この分断の縁部を重なった状態で融着して前記シール縁部を有するシート融着体を製造するとともに、分断によって生じたガスを、前記加圧部材側に配置された加圧部材側空気吹出部から空気を吹き出して前記支持部材の前記第２面側に飛ばし、該支持部材の第２面側に配置された集塵部材によって吸引し除去するシート融着体の製造方法。 <17>
A method for producing a sheet fusion body having a seal edge fused in a state where edges of a plurality of sheets are overlapped,
The longitudinal direction of the strip-shaped sheet laminate in which a plurality of sheets including at least a part of a resin material are superimposed on the first surface of the support member having the first surface and the second surface located on the opposite side thereof And pressurizing the sheet laminate supported on the first surface of the support member using a pressure member,
From the irradiation head that is disposed on the second surface side of the support member and has a lens that condenses laser light, toward the sheet laminate that is pressed and supported on the first surface of the support member. A step of irradiating a laser beam,
Laser light is irradiated to the sheet laminate along the slit-like support member side opening provided in the support member and extending in the width direction of the sheet laminate, and the sheet laminate is spread over the width direction. Simultaneously with the division, the edge of the division is fused in an overlapping state to produce a sheet fusion body having the seal edge, and the gas generated by the division is disposed on the pressure member side. Of the sheet fusion body which blows air from the pressurized member side air blowing portion, blows it to the second surface side of the support member, and sucks and removes the dust by the dust collecting member disposed on the second surface side of the support member. Production method.

＜１８＞
前記支持部材の前記第１面上に支持された前記シート積層体に、前記支持部材側開口部に沿って前記照射ヘッドからレーザー光を照射して、該シート積層体をその幅方向にわたって分断した後、分断によって生じたガスを、前記加圧部材側空気吹出部から空気を吹き出して前記支持部材の前記第２面側に飛ばし、前記集塵部材によって吸引し除去するとともに、該分断によって生じたガスを、前記支持部材の前記第２面側に配置された支持部材側空気吹出部から空気を吹き出して前記支持部材側開口部から除去する前記＜１７＞に記載のシート融着体の製造方法。
＜１９＞
前記照射ヘッドからレーザー光を照射する前に、前記集塵部材による吸引を開始し、前記加圧部材側空気吹出部による空気の吹き出しを開始する前記＜１７＞又は＜１８＞に記載のシート融着体の製造方法。
＜２０＞
前記支持部材が、外方を向く前記第１面と内方を向く前記第２面とを有し、かつ一方向に回転可能な円筒からなり、
前記円筒の周面に、該円筒の回転軸の軸長方向と平行な方向に一致して延びる前記スリット状の支持部材側開口部が、該円筒の周方向に所定間隔を置いて複数設けられており、
前記加圧部材は、前記支持部材の周方向と同方向に、かつ該支持部材の周速と同速で、該支持部材の周面に沿って周回可能になっており、
前記加圧部材は、該加圧部材が前記支持部材の周面に沿って周回している間、前記支持部材の前記第１面に対して接離動作を繰り返すようになっている前記＜１７＞〜＜１９＞の何れか１に記載のシート融着体の製造方法。 <18>
The sheet laminate supported on the first surface of the support member was irradiated with laser light from the irradiation head along the support member-side opening, and the sheet laminate was divided in the width direction. After that, the gas generated by the division is blown out from the pressure member side air blowing portion, is blown to the second surface side of the support member, is sucked and removed by the dust collecting member, and is generated by the division. The method for producing a sheet fusion body according to <17>, wherein the gas is blown out from the support member side air blowing portion disposed on the second surface side of the support member to be removed from the support member side opening. .
<19>
Before irradiating laser light from the irradiation head, suction by the dust collecting member is started, and blowing of air by the pressurizing member side air blowing portion is started. <17> or <18> A manufacturing method of a kimono.
<20>
The support member includes the first surface facing outward and the second surface facing inward, and is formed of a cylinder rotatable in one direction,
A plurality of the slit-like support member side openings extending in a direction parallel to the axial length direction of the rotation axis of the cylinder are provided on the circumferential surface of the cylinder at predetermined intervals in the circumferential direction of the cylinder. And
The pressurizing member is capable of circling along the circumferential surface of the support member in the same direction as the circumferential direction of the support member and at the same speed as the circumferential speed of the support member.
The pressurizing member repeats contact and separation operations with respect to the first surface of the support member while the pressurizing member circulates along the peripheral surface of the support member. >-<19> The manufacturing method of the sheet fusion body of any one of <19>.

＜２１＞
前記加圧部材は、前記支持部材の周面に沿って１回の周回運動をする間に、開放状態、加圧に向かう加圧過程状態、加圧状態、開放に向かう開放過程状態の動作を１周期の動作として行う前記＜１７＞〜＜２０＞の何れか１に記載のシート融着体の製造方法。
＜２２＞
加圧状態の間中、集塵部材による空気の吸引を行う前記＜２１＞に記載のシート融着体の製造方法。
＜２３＞
加圧状態において、加圧部材側空気吹出部から空気の吹き出しを行う前記＜２１＞又は＜２２＞に記載のシート融着体の製造方法。
＜２４＞
前記加圧部材側空気吹出部による前記空気の吹き出しは、前記加圧状態及び前記開放過程状態にて行う前記＜２１＞〜＜２３＞の何れか１に記載のシート融着体のシート融着体の製造方法。
＜２５＞
前記開放過程状態において、前記支持部材の前記第２面側に配置された支持部材側空気吹出部による空気の吹き出しを開始する前記＜２１＞〜＜２４＞の何れか１に記載のシート融着体のシート融着体の製造方法。
＜２６＞
前記支持部材側空気吹出部による空気の吹き出しは、開放状態の途中まで行われる前記＜２５＞に記載のシート融着体の製造方法。
＜２７＞
前記加圧部材が加圧状態になる前から、前記集塵部材による吸引を開始し、前記加圧部材側空気吹出部による空気の吹き出しを開始する前記＜１７＞〜＜２６＞の何れか１に記載のシート融着体のシート融着体の製造方法。 <21>
The pressurizing member performs an operation in an open state, a pressurization process state toward pressurization, a pressurization state, and an open process state toward release while performing one round motion along the peripheral surface of the support member. The method for producing a sheet fusion body according to any one of <17> to <20>, which is performed as one cycle of operation.
<22>
The method for producing a sheet fusion body according to <21>, wherein the air is sucked by the dust collecting member during the pressurized state.
<23>
The method for producing a sheet fusion body according to <21> or <22>, wherein air is blown out from a pressure member side air blowing portion in a pressurized state.
<24>
The sheet fusion of the sheet fusion body according to any one of <21> to <23>, wherein the blowing of the air by the pressure member side air blowing portion is performed in the pressurized state and the release process state. Body manufacturing method.
<25>
The sheet fusion according to any one of <21> to <24>, wherein in the opening process state, blowing of air is started by a support member side air blowing portion arranged on the second surface side of the support member. Manufacturing method of sheet fusion product.
<26>
The method for producing a sheet fusion body according to <25>, wherein the blowing of air by the support member side air blowing portion is performed halfway in an open state.
<27>
Any one of the above items <17> to <26>, in which suction by the dust collecting member is started before the pressure member is in a pressurized state, and air is blown out by the pressure member side air blowing portion. A method for producing a sheet fusion product of the sheet fusion product according to 1.

１ パンツ型使い捨ておむつ
１Ａ 腹側部
１Ｂ 背側部
Ｆ 前身頃
Ｒ 後身頃
２ 吸収性本体
３ 外装体
３１ 外層シート
３２ 内層シート
Ｔａ 前身頃側の外装体の厚み
Ｔｂ 後身頃側の外装体の厚み
３Ｆ 前身頃における外装体の縁部
３Ｒ 後身頃における外装体の縁部
４ サイドシール部
４０ 融着部
４０ａ 融着部の外縁
４１ シール縁部
１０ おむつ連続体（帯状の外装体）
２０ レーザー式接合装置
２１ 支持部材
２３ 円筒ロール
２５ 第２円筒ロール
２６ 加圧部材
２７ 支持部材側開口部（光通過部）
２８ 集塵部材
２８３ 吸引開口部
２９ 支持部材側空気吹出部
５０Ａ 本体部
５０Ｂ 加圧部
５１ 本体中空部
５２ａ 先端部
５２ｂ 後端部
５３ 接続部材
５４ 局所加圧部材
５４Ａ 加圧面
５５ 加圧部材側開口部
５９ 加圧部材側空気吹出部 DESCRIPTION OF SYMBOLS 1 Pants type disposable diaper 1A Abdominal side 1B Dorsal side F Front body R Rear body 2 Absorbent body 3 Exterior body 31 Outer layer sheet 32 Inner layer sheet Ta Thickness of exterior body on front body side Tb Thickness of exterior body on back body side 3F Edge of exterior body in front body 3R Edge of exterior body in back body 4 Side seal part 40 Fusion part 40a Outer edge of fusion part 41 Seal edge part 10 Diaper continuous body (band-like exterior body)
DESCRIPTION OF SYMBOLS 20 Laser type bonding apparatus 21 Support member 23 Cylindrical roll 25 2nd cylindrical roll 26 Pressurizing member 27 Support member side opening part (light passage part)
28 Dust Collection Member 283 Suction Opening 29 29 Support Member Side Air Blow 50A Main Body 50B Pressurization Part 51 Main Body Hollow Part 52a Front End 52b Rear End 53 Connecting Member 54 Local Pressure Member 54A Pressurization Surface 55 Pressurization Member Side Opening 59 Pressure member side air outlet

Claims (9)

複数枚のシートの縁部が重なった状態で融着したシール縁部を有するシート融着体の製造装置であって、
第１面及びそれと反対側に位置する第２面を有し、少なくとも一部に樹脂材を含む複数枚のシートが重ねられた帯状のシート積層体をその長手方向にわたって該第１面上に支持する支持部材と、
前記支持部材における前記第２面側に配置され、かつレーザー光を集光するレンズを有する照射ヘッドと、
前記支持部材の前記第１面上に支持された前記シート積層体を加圧する加圧部材とを具備し、
前記支持部材は、前記第２面側から照射されたレーザー光の通過可能な前記シート積層体の幅方向に長いスリット状の支持部材側開口部と、該支持部材側開口部から該第２面側に離間して配置され該支持部材側開口部に対向するように吸引開口部が形成された集塵部材と、該支持部材側開口部から該第２面側に離間して配置され該支持部材側開口部に向かって空気を吹き出す支持部材側空気吹出部とを有し、
前記加圧部材は、前記支持部材側開口部の延びる方向と同方向に延びかつ該支持部材側開口部と対向配置される加圧部材側開口部と、該加圧部材側開口部に向かって空気を吹き出す加圧部材側空気吹出部とを有しているシート融着体の製造装置。 An apparatus for producing a sheet fusion body having a seal edge fused in a state where edges of a plurality of sheets overlap with each other,
A belt-like sheet laminate having a first surface and a second surface located opposite to the first surface and a plurality of sheets including a resin material at least partially overlapped is supported on the first surface over the longitudinal direction. A supporting member to
An irradiation head disposed on the second surface side of the support member and having a lens for condensing laser light;
A pressurizing member that pressurizes the sheet laminate supported on the first surface of the support member;
The support member has a slit-like support member side opening that is long in the width direction of the sheet laminate through which the laser light irradiated from the second surface side can pass, and the second surface from the support member side opening. A dust collecting member that is spaced apart on the side and formed with a suction opening so as to face the opening on the supporting member side, and spaced apart from the supporting member side opening to the second surface side A support member side air blowing portion that blows out air toward the member side opening,
The pressure member extends in the same direction as the support member side opening and extends toward the support member side opening, and faces the pressure member side opening. An apparatus for producing a sheet fusion body having a pressure member-side air blowing section for blowing out air. 前記支持部材の前記第１面上に支持された前記シート積層体に、前記支持部材側開口部に沿って前記照射ヘッドからレーザー光を照射して、該シート積層体をその幅方向にわたって分断するのと同時に、この分断の縁部を重なった状態で融着して前記シール縁部を有するシート融着体を製造するとともに、分断によって生じたガスを、前記加圧部材側空気吹出部から空気を吹き出して前記支持部材の前記第２面側に飛ばし、前記集塵部材によって吸引し除去するようにした請求項１に記載のシート融着体の製造装置。   The sheet laminate supported on the first surface of the support member is irradiated with laser light from the irradiation head along the support member side opening, and the sheet laminate is divided in the width direction. At the same time, a sheet fusion body having the seal edge is manufactured by fusing the divided edges in an overlapped state, and the gas generated by the division is aired from the pressure member side air blowing portion. The apparatus for manufacturing a sheet fusion body according to claim 1, wherein the sheet is blown to the second surface side of the support member and sucked and removed by the dust collecting member. 前記支持部材の前記第１面上に支持された前記シート積層体に、前記支持部材側開口部に沿って前記照射ヘッドからレーザー光を照射して、該シート積層体をその幅方向にわたって分断した後、分断によって生じたガスを、前記加圧部材側空気吹出部から空気を吹き出して前記支持部材の前記第２面側に飛ばし、前記集塵部材によって吸引し除去するとともに、該分断によって生じたガスを、前記支持部材側空気吹出部から空気を吹き出して前記支持部材側開口部から除去するようにした請求項１又は２に記載のシート融着体の製造装置。   The sheet laminate supported on the first surface of the support member was irradiated with laser light from the irradiation head along the support member-side opening, and the sheet laminate was divided in the width direction. After that, the gas generated by the division is blown out from the pressure member side air blowing portion, is blown to the second surface side of the support member, is sucked and removed by the dust collecting member, and is generated by the division. The apparatus for producing a sheet fusion body according to claim 1 or 2, wherein the gas is removed from the support member side opening by blowing air from the support member side air blowing part. 前記加圧部材側空気吹出部は、前記加圧部材側開口部を挟んで一対配されている請求項１〜３の何れか１項に記載のシート融着体の製造装置。   The apparatus for producing a sheet fusion body according to any one of claims 1 to 3, wherein a pair of the pressure member side air blowing portions are arranged with the pressure member side opening interposed therebetween. 前記支持部材が、外方を向く前記第１面と内方を向く前記第２面とを有し、かつ一方向に回転可能な円筒からなり、
前記円筒の周面に、該円筒の回転軸の軸長方向と平行な方向に一致して延びる前記スリット状の支持部材側開口部が、該円筒の周方向に所定間隔を置いて複数設けられており、
前記加圧部材は、前記支持部材の周方向と同方向に、かつ該支持部材の周速と同速で、該支持部材の周面に沿って周回可能になっており、
前記加圧部材は、該加圧部材が前記支持部材の周面に沿って周回している間、前記支持部材の前記第１面に対して接離動作を繰り返すようになっている請求項１〜４の何れか１項に記載のシート融着体の製造装置。 The support member includes the first surface facing outward and the second surface facing inward, and is formed of a cylinder rotatable in one direction,
A plurality of the slit-like support member side openings extending in a direction parallel to the axial length direction of the rotation axis of the cylinder are provided on the circumferential surface of the cylinder at predetermined intervals in the circumferential direction of the cylinder. And
The pressurizing member is capable of circling along the circumferential surface of the support member in the same direction as the circumferential direction of the support member and at the same speed as the circumferential speed of the support member.
The pressurizing member repeats contact and separation operations with respect to the first surface of the support member while the pressurizing member circulates along the peripheral surface of the support member. The manufacturing apparatus of the sheet fusion body of any one of -4. 前記加圧部材が、前記加圧部材側開口部の延びる方向の一端にヒンジ構造の支持部を有し、該支持部を支点として、前記支持部材の回転軸を通る面内において揺動運動が可能になっており、それによって、該加圧部材が前記支持部材の前記第１面に対して接離動作をするようになっている請求項５に記載のシート融着体の製造装置。   The pressure member has a hinge-structure support portion at one end in the direction in which the pressure member-side opening extends, and swinging motion is performed in a plane passing through the rotation shaft of the support member with the support portion as a fulcrum. 6. The apparatus for manufacturing a sheet fusion body according to claim 5, wherein the pressing member is adapted to move toward and away from the first surface of the support member. 複数枚のシートの縁部が重なった状態で融着したシール縁部を有するシート融着体の製造方法であって、
第１面及びそれと反対側に位置する第２面を有する支持部材における該第１面上に、少なくとも一部に樹脂材を含む複数枚のシートが重ねられた帯状のシート積層体をその長手方向にわたって支持させ、該支持部材の該第１面上に支持された該シート積層体を加圧部材を用いて加圧し、
前記支持部材における前記第２面側に配置され、かつレーザー光を集光するレンズを有する照射ヘッドから、該支持部材の該第１面上に加圧して支持された前記シート積層体に向けてレーザー光を照射する工程を有し、
レーザー光を、前記支持部材に設けられた、前記シート積層体の幅方向に長いスリット状の支持部材側開口部に沿って該シート積層体に照射して、該シート積層体をその幅方向にわたって分断するのと同時に、この分断の縁部を重なった状態で融着して前記シール縁部を有するシート融着体を製造するとともに、分断によって生じたガスを、前記加圧部材側に配置された加圧部材側空気吹出部から空気を吹き出して前記支持部材の前記第２面側に飛ばし、該支持部材の第２面側に配置された集塵部材によって吸引し除去するシート融着体の製造方法。 A method for producing a sheet fusion body having a seal edge fused in a state where edges of a plurality of sheets are overlapped,
The longitudinal direction of the strip-shaped sheet laminate in which a plurality of sheets including at least a part of a resin material are superimposed on the first surface of the support member having the first surface and the second surface located on the opposite side thereof And pressurizing the sheet laminate supported on the first surface of the support member using a pressure member,
From the irradiation head that is disposed on the second surface side of the support member and has a lens that condenses laser light, toward the sheet laminate that is pressed and supported on the first surface of the support member. A step of irradiating a laser beam,
Laser light is irradiated to the sheet laminate along the slit-like support member side opening provided in the support member and extending in the width direction of the sheet laminate, and the sheet laminate is spread over the width direction. Simultaneously with the division, the edge of the division is fused in an overlapping state to produce a sheet fusion body having the seal edge, and the gas generated by the division is disposed on the pressure member side. Of the sheet fusion body which blows air from the pressurized member side air blowing portion, blows it to the second surface side of the support member, and sucks and removes the dust by the dust collecting member disposed on the second surface side of the support member. Production method. 前記支持部材の前記第１面上に支持された前記シート積層体に、前記支持部材側開口部に沿って前記照射ヘッドからレーザー光を照射して、該シート積層体をその幅方向にわたって分断した後、分断によって生じたガスを、前記加圧部材側空気吹出部から空気を吹き出して前記支持部材の前記第２面側に飛ばし、前記集塵部材によって吸引し除去するとともに、該分断によって生じたガスを、前記支持部材の前記第２面側に配置された支持部材側空気吹出部から空気を吹き出して前記支持部材側開口部から除去する請求項７に記載のシート融着体の製造方法。   The sheet laminate supported on the first surface of the support member was irradiated with laser light from the irradiation head along the support member-side opening, and the sheet laminate was divided in the width direction. After that, the gas generated by the division is blown out from the pressure member side air blowing portion, is blown to the second surface side of the support member, is sucked and removed by the dust collecting member, and is generated by the division. The method for producing a sheet fusion body according to claim 7, wherein the gas is removed from the support member side opening by blowing air from a support member side air blowing portion disposed on the second surface side of the support member. 前記照射ヘッドからレーザー光を照射する前に、前記集塵部材による吸引を開始し、前記加圧部材側空気吹出部による空気の吹き出しを開始する請求項７又は８に記載のシート融着体の製造方法。
The sheet fusion body according to claim 7 or 8, wherein suction by the dust collecting member is started before the laser light is irradiated from the irradiation head, and air blowing by the pressure member side air blowing portion is started. Production method.
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