JPS58163641A - 容器底部の成形方法および成形装置 - Google Patents

容器底部の成形方法および成形装置

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Publication number
JPS58163641A
JPS58163641A JP57047026A JP4702682A JPS58163641A JP S58163641 A JPS58163641 A JP S58163641A JP 57047026 A JP57047026 A JP 57047026A JP 4702682 A JP4702682 A JP 4702682A JP S58163641 A JPS58163641 A JP S58163641A
Authority
JP
Japan
Prior art keywords
flange
synthetic resin
container
peripheral surface
resin layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP57047026A
Other languages
English (en)
Other versions
JPH04824B2 (ja
Inventor
明 萩原
昌昭 増田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon Printing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP57047026A priority Critical patent/JPS58163641A/ja
Publication of JPS58163641A publication Critical patent/JPS58163641A/ja
Publication of JPH04824B2 publication Critical patent/JPH04824B2/ja
Granted legal-status Critical Current

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Classifications

    • 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
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/567—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using a tamping or a swaging operation, i.e. at least partially deforming the edge or the rim of a first part to be joined to clamp a second part to be joined
    • B29C65/568—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using a tamping or a swaging operation, i.e. at least partially deforming the edge or the rim of a first part to be joined to clamp a second part to be joined using a swaging operation, i.e. totally deforming the edge or the rim of a first part to be joined to clamp a second part 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/545—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles one hollow-preform being placed inside the other
    • 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
    • B29C66/8141—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 surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—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 surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • B29C66/81429—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 surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth comprising a single tooth
    • 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
    • B29C66/8141—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 surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—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 surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • 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
    • B29C66/8322—Joining or pressing tools reciprocating along 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/34—Rim rolling
    • 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
    • B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one 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
    • B29C66/01—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
    • 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
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • 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
    • B29C66/7232—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 comprising a non-plastics layer
    • B29C66/72327—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 comprising a non-plastics layer consisting of natural products or their composites, not provided for in B29C66/72321 - B29C66/72324
    • B29C66/72328—Paper
    • 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
    • B29C66/8141—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 surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—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 surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—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 surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81423—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 surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】 本発明状容器底部Ｏ成形方法および成形装置に関する。
近年、紙コツプ等の、紙を素材としたー器が広〈用いら
れている。従来これ勢の容器は、紙等の素材を芯層に用
い、骸芯層の表裏両面に合成樹脂層を積層してなる素材
から、筒状の胴部と、絃胴部底部内面に嵌合する形状を
有し且つ端部に鍔部を一体的に設けてなる底面部を形成
し、該胴部底部内面に＃底面部を嵌合して形成される容
器の底部下部内周面を、加熱空気あるい社バーナー等に
より加熱して、胴部の底部端縁部、底面部の鰐部付近の
合成樹脂層を溶融せしめ、次いで、上記底部端縁部を折
り曲は用型によって内方に折り一げた後、圧着用型によ
り、鍔部と、上記新砂曲は用型により内方に折り曲げら
れ丸底部端縁部とを重合させ且つこれを押圧して加熱溶
融された合成樹脂層を介して鍔部と胴部下部とを熱圧着
し、胴部と底面部とを一体成形して得られる。
しかしながら、上記の方法により容器底部の成形を行な
う場合、容器の底部下部内周面の加熱を行なった際に、
熱伝導によって、底部下部内周面の樹脂層のみならず、
胴部下部の外周面の樹脂層をも溶融させてしまうため、
折り−は用型や圧着用型により抑圧を加えると胴部下部
の外周面付近の溶融し九合成樹脂が型に付着して芯層よ
り剥離し、溶量が不良品として成形される。この九め、
折り−げ用型、圧着用型表面にテア０ンコート等の滑り
対策を施した抄、潤滑剤塗布を施す勢の対策を行なって
いるが、効果および耐久性の面で不充分なものであった
。
本発明は上記の点に鑑みなされ丸もので、容器底部の熱
圧着強度を損なうことなく・熱圧着工程における樹脂層
剥離による不良品を防止することができる容器底部の成
形方法および成形装置を提供することを目的とする。
即ち、本発明の１つ社、芯層と該芯層の表裏両面に積層
され九合成樹脂層とから擾る素材にて、筒状の胴部と、
該胴部底部内面に嵌合する形状を有し且つ端部に鍔部を
一体的に設けてなる底面部とを形成し、該胴部底部内面
に咳底面部を嵌合して形成され九容器の底部下部内局面
を加熱して胴部の底部端縁部と底面部の鍔部の各合成樹
脂層を溶融せしめ、次いで胴部下部の外周ＩＮＫ冷却用
気体を供給して鋏胴部下部の外周面の合成樹脂層をつ該
重合部を押圧し、加熱溶融された合成樹脂層を介して、
鍔部と胴部下部とを熱圧着して胴部と底面部とを一体成
形することを特徴とする容量底部の成形方法を要旨とす
る。本発明のいま１つは、芯層と該芯層の表裏両面に積
層された合成樹脂層とからなる素材にて形成され丸筒状
の胴部底部内面に該胴部底部内面に嵌合する形状を有し
且つ端部に鍔部を一体的−に設けてなり、上記素材にて
形めるための加熱手段と、胴部の端縁部を内方に折り曲
げる丸めの折り曲は用型と、該折り曲は用型に設置ら親
綱部下部の外周面を冷却する冷却用気体を供給する冷却
管と、鍔部と上記内方に新砂曲けられ丸底部端縁部とを
重合させ且つこれを押圧して、加熱溶融された合成樹脂
層を介して鍔部と胴部下部とを熱圧着するための圧着−
用型とからなゐことを特徴とする容器底部の成形装置を
要旨とする。
以下、本発明の実施例を図面に基き説明する。
第１図〜＃１４図れ、本発明により断面円形状の容Ｓ底
部を成形する工程の１例を示すものであり、第１図社容
器１を筒状の胴部２に底面部３を嵌合して形成した状態
を示し、４は胴部２の底部端綴部、５祉底面部８０ｍ１
ｌＫ一体的に設置られた鍔部、６は口部である。胴１１
２と底面部３の嵌合により形成され九容器！Ｏ底部は底
面部８により底部下部７１と底部上部７ｂとに分割され
る。胴部２および底面部３社芯層８の表裏両面に合成樹
脂層９　、　ｆ　、１０．１゛σを積層してなる素材に
よ抄構成されている。
第２図は、＃Ｉ１図に示す容器１の底部下部内周面１１
（底部端縁部と鍔部とＫよって構成される容器底部下−
の内側周面）Ｋ熱風供給管１２の熱風供給口１８ヨシ、
熱□風を供給する工程を示すもので熱風加熱により底部
下部内周面１１０金成樹脂層９ゼ、１０ぎが溶融される
。この際熱伝導によシ鍔部５の外周面と該鍔部５と当接
する胴部２の当接面の合成樹脂層１０亀、９Ｍおよび胴
部下部１４の外側向付近の合成樹脂層９１も同時に溶融
される。次いで折り曲は用１１１５が矢印上方向に降下
し、該新砂曲げ用型１５の下部に設置られ九冷却管１６
の冷却気体供給口１７より冷却気体を供給し、胴部下部
１４の外周間の合成樹脂層９１を冷却すると共に１該折
り曲は用型璽５の降下に伴って、底部端縁部４が該新砂
−げ用１１１５に設けられた凹部１８にガイドされて内
方に折り曲けられる。鍔部５と上記内方に新砂曲けられ
た底部端縁部４とは圧着用型１９によって重合され且つ
該重合部は該圧着用型１９により押圧され鍔部５と胴部
下１１１４とが鍔部５内周面と底部端縁部４内周面およ
び鍔部５外周面と該鍔部５と当接する胴部２の当接面の
合成樹脂層９１’、１０ゼおよびｓｌｆ、ｉｏａを介し
て熱圧着さ貴る（第４図）圧着用型１９は例えば第４図
に示すように、端部押圧１ｆ２Ｇ、外側部抑圧１１２！
４、内側部押圧＠２２から構成され、内伺郁押圧１１２
２は軸２３と、該軸２３に対し回転自在に設けられた回
転ローフ−２４とから構成される。また外側部押圧１ｆ
２１には必要により冷却水循環孔２５が設けられる。
内側部押圧１１２２は回転ａ−，ｙ−２４によって底部
端縁部４と鍔部５とを重合せしめ且つ該重合部を押圧す
ると共に軸２３が容器１の中心線（便宜上、諌中心線を
一点鎖線で示す）を中心に回転し、軸２ｓｏｉｓ転に伴
って、底部端縁部４と鍔部５の回転−−１−２４によ伽
重合、押圧される位置が―次移動して熱圧着が行なわれ
、胴部２と底面部３とが一体に成形されるが、圧着用型
１９は底部端縁部４と鍔部５とを重合せしめ、且つ該重
合部を押圧して鍔部５と胴部下部１４と０熱圧着が行な
われるよう構成されていれば良く、本実施例の圧着用型
１９の構成、作用において限定されるものではない。
以上説明し良ように本発明方法は筒状の胴部と、該胴部
に嵌合する形状を有し且つ端部に鍔部を一体的に設置て
なる底面部とを嵌合して形成される容器底部下部内周面
を加熱して胴部の端縁部と底面部の鍔部の各合成樹脂層
を溶融せしめた後、胴部下部の外周面に冷却用気体を供
給して骸胴部下部の外周面の合成樹脂層を冷却すると共
に、胴部の底部端縁部と内方に折ａｍける方法を採用し
、且つ本発明装置はそのための構成を備えているから、
底部端縁部の折り曲げ時や、該底部端縁部を新砂蘭げた
後、底部端縁部と鍔部とを重合せしめ且つ骸重金部を押
圧して加熱溶融され九合成樹脂層を介して鍔部と胴部下
部とを熱圧着するＩＩＫ胴部下部の外周面側の合成樹脂
層の剥離を防止することができ、合成樹脂層の剥離によ
る不良容器の発生を防止できる効果がある。
ｉ丸胴部下部の外周面の冷却を行なうと共に底部端縁部
の折艶曲けを行なうことにより冷却用気体の供給時間線
短く、従って胴部下部の外周面側の合成樹脂層のみが冷
却され、底部下部内周面側の合成樹脂層の温度は低下し
ないため、容器底部の熱圧着強度が損われない利点を有
する。
【図面の簡単な説明】
図面は本発明の二施例を示すもので第１図＃′ｉ胴部に
底面部を嵌合して形成した容器の縦断面図、１１２図轄
第Ｗａｌｌの容器の底部下部内周面の加熱工程を示す要
部縦断面図、ｊ９１３図は胴部下部の外周間を冷却する
と共に底部端縁部を内方に折シ曲げる工程を示す要部縦
断面図、第４図は底部端縁部と鍔部とを重合させ且つ該
重合部を押圧し鍔部と胴部下部とを熱圧着する工程を示
す要部縦断面図である。 １・・・・・・容器　　　２・・−・・・胴１ｌＩ３・
・・・・・底面部　　　４・・・・・・底部端縁部　　
５・・・・・・鍔部　　８・・・・・・芯層　　９．ｇ
。 １０．１σ・・・・・・合成樹脂層　　１１・・・・・
・底部下部内周面１２・・・・・・熱風供給管　　１◆
・・・・・胴部下部　　１５・・・・・・折り―げ用１
１１６・・・・・・冷却管　　１９・・−・−・圧着用
蓋第１図 第２図 第３図 第４図

Claims (2)

    【特許請求の範囲】
  1. （１）芯層と鋏芯層の表裏両面に積層された合成樹脂層
    とからなる素材にて、筒状の胴部と、該胴部底部内面に
    嵌合する形状を有し且つ端部に鍔部を一体的に設けてな
    る底面部とを形成し、該胴部底部内面ＩＩｃＩｃ両底面
    部合して形成された容器の底部下部内周面を加熱して胴
    部の底部端縁部゛と底面部の鍔部の各合成樹脂層を溶融
    せしめ、次いで胴部下部の外周面に冷却用気体を供給し
    て皺胴部下部の外周面の合成樹脂、層を冷却鋏重合部を
    押圧し、加勢溶融され九合成樹脂層を介して鍔部と胴部
    下部とを熱圧着して胴部と底面部とを結合一体化するこ
    とを特徴とする容器底部の成形方法。
  2. （２）芯層と鋏芯層の表裏両面に積層され重合・成樹脂
    層とからなる素材にて形成され丸筒状Ｏ胴部底部内面に
    該胴部底部内面に嵌合する形状を有し且り７端部に鍔部
    を一体的に設叶てｔｋ１上記素材にて形成された底面部
    を嵌合して形成さ杆れえ容器の底部下部内周面を加熱し
    て胴部の底部端縁部と底面部の鍔部の各合成樹脂層を溶
    融せしめる丸めの加熱手段と、胴部の端縁部を内方に新
    砂−ける良めの折り−は用型と、皺折り−は用型に設け
    られ、胴部下部の外周面を冷却する冷却用気体を供給す
    る冷却管と、鍔部と上記内方に新参−けられた底部端縁
    部とを重合させ且つこれを押圧して加熱溶融された合成
    樹脂′層を介して鍔部と胴部と胴部下部とを熱圧着する
    ための圧着用層とからなることを特徴とする容器底部の
    成形装置。
JP57047026A 1982-03-24 1982-03-24 容器底部の成形方法および成形装置 Granted JPS58163641A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57047026A JPS58163641A (ja) 1982-03-24 1982-03-24 容器底部の成形方法および成形装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57047026A JPS58163641A (ja) 1982-03-24 1982-03-24 容器底部の成形方法および成形装置

Publications (2)

Publication Number Publication Date
JPS58163641A true JPS58163641A (ja) 1983-09-28
JPH04824B2 JPH04824B2 (ja) 1992-01-08

Family

ID=12763658

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57047026A Granted JPS58163641A (ja) 1982-03-24 1982-03-24 容器底部の成形方法および成形装置

Country Status (1)

Country Link
JP (1) JPS58163641A (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001026884A1 (en) * 1999-10-14 2001-04-19 Kabushiki Kaisha Top Method of connection with synthetic resin member
CN105269871A (zh) * 2014-06-06 2016-01-27 迈克尔·霍劳弗机器制造有限责任两合公司 用于制造杯子的方法和设备

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54113860U (ja) * 1978-01-23 1979-08-10
JPS56157339A (en) * 1980-05-10 1981-12-04 Dainippon Printing Co Ltd Method of sealing bottom edge section of paper vessel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54113860U (ja) * 1978-01-23 1979-08-10
JPS56157339A (en) * 1980-05-10 1981-12-04 Dainippon Printing Co Ltd Method of sealing bottom edge section of paper vessel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001026884A1 (en) * 1999-10-14 2001-04-19 Kabushiki Kaisha Top Method of connection with synthetic resin member
AU767795B2 (en) * 1999-10-14 2003-11-27 Kabushiki Kaisha Top Method of connection with synthetic resin member
US7198746B1 (en) 1999-10-14 2007-04-03 Kabushiki Kaisha Top Method of connection with synthetic resin member
CN105269871A (zh) * 2014-06-06 2016-01-27 迈克尔·霍劳弗机器制造有限责任两合公司 用于制造杯子的方法和设备
US10112359B2 (en) 2014-06-06 2018-10-30 Michael Hoerauf Maschinenfabrik Gmbh Method and device for manufacturing a cup

Also Published As

Publication number Publication date
JPH04824B2 (ja) 1992-01-08

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