JP6247900B2 - シート融着体の製造装置 - Google Patents
シート融着体の製造装置 Download PDFInfo
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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
- B29C66/40—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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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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
- 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
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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
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B29C65/7841—Holding or clamping means for handling purposes
- B29C65/7847—Holding or clamping means for handling purposes using vacuum to hold at least one of the parts to be joined
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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
- B29C66/01—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
- B29C66/70—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
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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
- B29C66/834—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
- B29C66/83431—Roller, cylinder or drum types; Band or belt types; Ball types rollers, cylinders or drums cooperating with bands or belts
- B29C66/83433—Roller, cylinder or drum types; Band or belt types; Ball types rollers, cylinders or drums cooperating with bands or belts the contact angle between said rollers, cylinders or drums and said bands or belts being a non-zero angle
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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
- B29C66/834—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
- B29C66/83431—Roller, cylinder or drum types; Band or belt types; Ball types rollers, cylinders or drums cooperating with bands or belts
- B29C66/83435—Roller, cylinder or drum types; Band or belt types; Ball types rollers, cylinders or drums cooperating with bands or belts said rollers, cylinders or drums being hollow
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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
- B29C66/01—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
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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
- B29C66/70—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
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- 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
Description
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、
レーザー光の照射ヘッドと、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の一方の面を支持する支持部材とを具備し、
前記支持部材は、レーザー光が通過可能な、前記帯状のシート積層体の搬送方向と直交する幅方向に長いスリット状の開口部を有しており、
前記支持部材の外面上に供給されて支持された前記帯状のシート積層体に、該支持部材側からレーザー光を前記開口部に沿って照射して分断すると共に、その分断の縁部を重なった状態で融着し、前記シール縁部を有するシート融着体を複数個連続的に製造するシート融着体の製造装置であって、
前記支持部材は前記搬送方向に移動可能になされており、該支持部材の内面に、該搬送方向に沿う断面視において該支持部材の厚み方向に対して傾斜する傾斜面が形成されており、
更に、前記傾斜面に対して先端部が離接可能に配された支持部材調整ピンを具備し、
前記傾斜面に前記支持部材調整ピンの先端部を当接させることにより、前記支持部材を前記搬送方向に移動させて、前記開口部の位置又は幅を調整し得るようにしたシート融着体の製造装置。
前記支持部材調整ピンの先端部は、先端に向けて断面積が徐々に小さくなる先細りのテーパー状をなしている前記<1>記載のシート融着体の製造装置。
<3>
前記支持部材調整ピンの先端部のピン軸方向に対するテーパー角度は、前記傾斜面の該ピン軸方向に対する傾斜角度と一致している前記<1>又は<2>記載のシート融着体の製造装置。
<4>
前記傾斜面の前記ピン軸方向に対する傾斜角度は、前記支持部材調整ピンの前記テーパー角度の100〜96%の範囲内にある前記<3>記載のシート融着体の製造装置。
<5>
前記支持部材の前記搬送方向の移動可能範囲は、前記支持部材調整ピンが前記傾斜面に当接可能な範囲に制限されている前記<1>〜<3>の何れか一項に記載のシート融着体の製造装置。
前記支持部材は、前記開口部を画成する支持板と、該支持板の内面と接触してこれを支持する基台とを含んで構成され、該基台の外面に該支持板の配置スペースが設けられ、該配置スペース内を該支持板が前記搬送方向に移動可能に配されており、
前記支持板は、1)前記搬送方向に前記開口部の幅に相当する間隔を置いて配された、2枚の板状部材を含んで構成されているか、又は2)中央に前記開口部が穿設された1枚の板状部材を含んで構成されている前記<1>〜<4>の何れか一項に記載のシート融着体の製造装置。
<7>
前記基台の先端は平滑面である前記<6>記載のシート融着体の製造装置。
<8>
前記基台の先端全域が、前記支持板の配置スペースとなっている前記<6>又は<7>記載のシート融着体の製造装置。
<9>
前記配置スペースの前記搬送方向の両端に弾性部材が配されており、該弾性部材と前記支持板の該搬送方向の端部とが常時当接している前記<6>〜<8>の何れか一項に記載のシート融着体の製造装置。
<10>
更に、前記支持部材の前記幅方向の外方で且つ前記支持部材調整ピンと前記搬送方向において同位置又はその近傍に設けられた、前記開口部の指標位置となるドグと、該ドグを検知するセンサとを具備する前記<1>〜<9>の何れか一項に記載のシート融着体の製造装置。
前記開口部は、平面視において矩形形状を有し、その長手方向を前記シート積層体の搬送方向と直交する方向(前記製造装置の幅方向)に一致させて、該搬送方向に所定間隔を置いて複数形成されている前記<1>〜<10>の何れか一項に記載のシート融着体の製造装置。
<12>
前記支持部材調整ピンは、前記開口部の長手方向に所定間隔を置いて複数配されている前記<1>〜<11>の何れか一項に記載のシート融着体の製造装置。
<13>
前記シート融着体の製造装置は、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り、
前記シートの搬送方向に対応して回転軸周りに回転する環状の前記支持部材を備えた中空の円筒ロールと、中空の該円筒ロールの中空部に配され、該円筒ロールの周面部を形成する該支持部材に向けてレーザー光を照射する照射ヘッドとを備えている前記<1>〜<12>の何れか一項に記載のシート融着体の製造装置。
<14>
前記シート融着体の製造装置は、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り、
レーザー光を集光するレンズを有する照射ヘッドと、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の一方の面を支持しながら搬送する前記支持部材と、加圧手段として無端状の加圧ベルト(押さえ部材)及び該加圧ベルトが架け渡された状態で回転する複数本のロールを備えたベルト式加圧装置とを備えている前記<1>〜<13>の何れか一項に記載のシート融着体の製造装置。
<15>
前記シート融着体は、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である前記<1>〜<14>の何れか一項に記載のシート融着体の製造装置。
<16>
前記パンツ型使い捨ておむつは、吸収性本体と、該吸収性本体の非肌当接面側に配されて該吸収性本体を固定している外装体とを備え、且つ腹側部における該外装体の両側縁部と背側部における該外装体の両側縁部とが接合されて一対のサイドシール部、ウエスト開口部及び一対のレッグ開口部が形成されているパンツ型使い捨ておむつである前記<15>記載のシート融着体の製造装置。
1A 腹側部
1B 背側部
2 吸収性本体
3 外装体(シート融着体)
31 外層シート
32 内層シート
4 サイドシール部(シール縁部)
40 融着部
10 おむつ連続体(帯状のシート積層体)
20 レーザー式接合装置(シート融着体の製造装置)
21 支持部材
21P 支持部材の傾斜面
111 第1支持部
112,112A,112B 第2支持部
122 支持板
122a,122b 板状部材
122H 貫通口
132 基台
132H 固定具挿入口
132S 支持板配置スペース
23 円筒ロール(支持部材)
24 加圧ベルト(押さえ部材)
27 スリット状の開口部
30 レーザー光
50 支持部材調整ピン
51 ピン支持部材
50a 支持部材調整ピンの先端部
55 ナット
57 弾性部材
Claims (7)
- 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、
レーザー光の照射ヘッドと、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の一方の面を支持する支持部材とを具備し、
前記支持部材は、レーザー光が通過可能な、前記帯状のシート積層体の搬送方向と直交する幅方向に長いスリット状の開口部を有しており、
前記支持部材の外面上に供給されて支持された前記帯状のシート積層体に、該支持部材側からレーザー光を前記開口部に沿って照射して分断すると共に、その分断の縁部を重なった状態で融着し、前記シール縁部を有するシート融着体を複数個連続的に製造するシート融着体の製造装置であって、
前記支持部材は、前記開口部を画成する支持板と、該支持板の内面と接触してこれを支持する基台とを含んで構成され、該基台の外面に該支持板の配置スペースが設けられ、該配置スペース内を該支持板が前記搬送方向に移動可能に配されており、該支持部材の内面に、該搬送方向に沿う断面視において該支持部材の厚み方向に対して傾斜する傾斜面が形成されており、
更に、前記傾斜面に対して先端部が離接可能に配された支持部材調整ピンを具備し、
前記傾斜面に前記支持部材調整ピンの先端部を当接させることにより、前記支持板を前記搬送方向に移動させて、前記開口部の位置又は幅を調整し得るようにしたシート融着体の製造装置。 - 前記支持部材調整ピンの先端部は、先端に向けて断面積が徐々に小さくなる先細りのテーパー状をなしている請求項1記載のシート融着体の製造装置。
- 前記支持部材調整ピンの先端部のピン軸方向に対するテーパー角度は、前記傾斜面の該ピン軸方向に対する傾斜角度と一致している請求項1又は2記載のシート融着体の製造装置。
- 前記支持板の前記搬送方向の移動可能範囲は、前記支持部材調整ピンが前記傾斜面に当接可能な範囲に制限されている請求項1〜3の何れか一項に記載のシート融着体の製造装置。
- 前記支持板は、1)前記搬送方向に前記開口部の幅に相当する間隔を置いて配された、2枚の板状部材を含んで構成されているか、又は2)中央に前記開口部が穿設された1枚の板状部材を含んで構成されている請求項1〜4の何れか一項に記載のシート融着体の製造装置。
- 前記配置スペースの前記搬送方向の両端に弾性部材が配されており、該弾性部材と前記支持板の該搬送方向の端部とが常時当接している請求項5記載のシート融着体の製造装置。
- 更に、前記支持部材の前記幅方向の外方で且つ前記支持部材調整ピンと前記搬送方向において同位置又はその近傍に設けられた、前記開口部の指標位置となるドグと、該ドグを検知するセンサとを具備する請求項1〜6の何れか一項に記載のシート融着体の製造装置。
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