JPH02196632A - High frequency welding device for cylindrical container - Google Patents

High frequency welding device for cylindrical container

Info

Publication number
JPH02196632A
JPH02196632A JP1015087A JP1508789A JPH02196632A JP H02196632 A JPH02196632 A JP H02196632A JP 1015087 A JP1015087 A JP 1015087A JP 1508789 A JP1508789 A JP 1508789A JP H02196632 A JPH02196632 A JP H02196632A
Authority
JP
Japan
Prior art keywords
welding
cylindrical container
jig
high frequency
outer periphery
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
JP1015087A
Other languages
Japanese (ja)
Other versions
JP2711467B2 (en
Inventor
Takeo Yasugi
八杉　武夫
Taku Ichikawa
卓 市川
Takeyoshi Hagita
萩田　剛由
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.)
Ajinomoto Co Inc
SPC Electronics Corp
Original Assignee
Ajinomoto Co Inc
SPC Electronics Corp
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 Ajinomoto Co Inc, SPC Electronics Corp filed Critical Ajinomoto Co Inc
Priority to JP1015087A priority Critical patent/JP2711467B2/en
Publication of JPH02196632A publication Critical patent/JPH02196632A/en
Application granted granted Critical
Publication of JP2711467B2 publication Critical patent/JP2711467B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • 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
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3604—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/3656—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint being a layer of a multilayer part to be joined, e.g. for joining plastic-metal laminates
    • 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
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3672—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint
    • B29C65/3676—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic
    • B29C65/368—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic with a polymer coating
    • 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
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
    • B29C66/12441—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue being a single wall
    • 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
    • B29C66/61—Joining from or joining on the inside
    • B29C66/612—Making circumferential 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
    • B29C66/50—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
    • B29C66/63—Internally supporting the article during joining
    • 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
    • B29C66/72321—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 metals or their alloys
    • 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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • 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
    • B29C66/82261—Wedges
    • 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
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • B29K2705/02—Aluminium
    • 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
    • B29L2031/712—Containers; Packaging elements or accessories, Packages

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Package Closures (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Closing Of Containers (AREA)

Abstract

PURPOSE:To apply constant pressurizing force all the time on a welded surface and provide a high frequency welding device of a cylindrical container provided with constant welding strength even if variations of dimensions of a cover material recessed section are great by disposing a high frequency heating coil on the outer periphery of a welded section of cylindrical container and positioning a pressurizing jig for forming an outer periphery moving in the outer peripheral direction in a recessed inner section of a cover material at the time of welding on a vertical surface and divided into several pieces. CONSTITUTION:A projected operation opening 5 is provided in the center of an insulating material jig 4, and a high frequency heating coil 6 is provided at a lower end section. Also, the whole of a pressurizing jig 7 for welding is recessed, and the outer periphery is formed on a vertical surface and can be inserted into the operation opening 5, and also can be divided into several divisions by means of vertical device surfaces 8, 8', 8''. A cylindrical container 1 on which a cover material 2 is inserted into the insulating material jig 4 and pressurizing is carried out by lowering a piston rod 14 and bringing the outer periphery of the pressurizing jig 7 into contact with the inner periphery of the cover section 2. When high frequency electric current is applied to the heating coil 6 in said state, aluminum foil sections of the cylindrical container 1 and the cover material 2 are heated by means of high frequency induction heating, and thermoplastic resin applied to the aluminum foil is melted. The molten resin is mixed by the pressure of the piston rod 14 to the cylindrical container 1 and the cover material 2.

Description

【発明の詳細な説明】 ［産業上の利用分野コ 本発明は、例えばプラスチック又は紙等で形成した芯材
の片面にアルミニウム箔と熱可塑性樹脂を順次重ねて構
成した筒状容器と容器開口端に嵌合する蓋材を高周波誘
導加熱により溶着する筒状容器の高周波溶着装置に関す
るものである。Detailed Description of the Invention [Industrial Field of Application] The present invention relates to a cylindrical container and an open end of the container, which are constructed by sequentially overlapping aluminum foil and thermoplastic resin on one side of a core material made of plastic or paper, for example. The present invention relates to a high-frequency welding device for a cylindrical container that welds a fitting lid member by high-frequency induction heating.

［従来の技術］ 従来の此種装置としては第３図に示すように、筒状容器
Ａの開口端に凹状をした蓋材Ｂを嵌合する。一方、筒状
容器Ａの外周に高周波誘導加熱用コイルＣを組込んだ絶
縁材治具ｐの内側にテーパー状治具Ｅを設け、このテー
パー状治具Ｅを蓋材Ｂに押込んで加熱溶着している。[Prior Art] As shown in FIG. 3, in a conventional device of this kind, a concave lid member B is fitted into the open end of a cylindrical container A. On the other hand, a tapered jig E is provided inside an insulating jig p incorporating a high-frequency induction heating coil C on the outer periphery of the cylindrical container A, and this tapered jig E is pushed into the lid material B to heat weld it. are doing.

テーパー状治具を蓋材へ押込む方法は、治具を固定し、
容器を下から突上げるか、容器を固定し治具及び加熱コ
イルを押し下げる方法がとられている。いずれの場合も
溶着時に上方もしくは下方への力が容器に加わりテーパ
ー状治具の作用により溶着面に対して垂直圧力が加わる
ようになっている。The method of pushing the tapered jig into the lid material is to fix the jig and
The methods used include pushing up the container from below, or fixing the container and pushing down the jig and heating coil. In either case, an upward or downward force is applied to the container during welding, and vertical pressure is applied to the welding surface due to the action of the tapered jig.

［発明が解決しようとする課題］ 前記従来の装置にあっては、溶着時に溶着部分に一定の
加圧力が必要なためで、加圧力が弱いと充分な溶着効果
が得られにい。[Problems to be Solved by the Invention] In the conventional apparatus described above, a certain pressure is required on the welded part during welding, and if the pressure is weak, a sufficient welding effect cannot be obtained.

又、溶着面に加わる力の作用は蓋材の凹状部寸法のわず
かなバラツキに影響されるため、凹状部寸法精度を厳し
くしなければならず、プラスチック成形品の寸法選別が
必要となり、歩留りが向上できない。In addition, since the action of the force applied to the welding surface is affected by slight variations in the dimensions of the recessed part of the lid material, the dimensional accuracy of the recessed part must be made strict, and the size selection of plastic molded products is required, which reduces the yield. I can't improve.

更に、蓋材の凹状部の深さ寸法が数ｍｍ〜十数■と小さ
いため蓋材の寸法バラツキによって溶着強度が一定せず
、溶着不良が発生するという欠点をもっていた。Furthermore, since the depth of the concave portion of the lid material is small, ranging from several millimeters to several tens of square centimeters, the welding strength is not constant due to variations in the dimensions of the lid material, resulting in defective welding.

そこで、本発明はこれらの欠点を解決するために蓋材凹
状部の寸法バラツキが大きくても、常に溶着面に対して
一定の加圧力が加わり、一定の溶着強度が得られる筒状
容器の高周波溶着装置を提供するのが目的である。Therefore, in order to solve these drawbacks, the present invention has developed a high-frequency welding method for a cylindrical container that can always apply a constant pressure force to the welding surface and obtain a constant welding strength even if there are large dimensional variations in the recessed part of the lid material. The purpose is to provide a welding device.

Ｃ課題を解決するための手段コ 本発明は前記目的を達成するために、芯材の片面に金属
箔と熱可塑性樹脂を順次重ねて形成した筒状容器の開放
端に、同材料で形成した凹状の蓋材を嵌入して高周波溶
着する装置において、高周波加熱コイルを筒状容器の溶
着部外周に配置し。C. Means for Solving the Problems In order to achieve the above-mentioned object, the present invention has a cylindrical container formed by sequentially overlapping metal foil and thermoplastic resin on one side of the core material, and a cylindrical container formed of the same material at the open end thereof. In an apparatus for inserting a concave lid material and performing high-frequency welding, a high-frequency heating coil is placed around the outer periphery of the welding part of the cylindrical container.

溶着時に蓋材の凹状部内部において外周方向へ移動して
加圧する外周を垂直面で形成した数個に分割された溶着
用加圧治具を、蓋材の内側に位置させた筒状容器の高周
波溶着装置を提供するものである。A pressure jig for welding, which is divided into several pieces and whose outer periphery is formed by a vertical surface, moves toward the outer periphery inside the recessed part of the lid material to apply pressure during welding. The present invention provides a high frequency welding device.

［作　用］ 本発明においては筒状容器の開放端に凹状の蓋材を嵌合
し、これを高周波加熱コイルの内側に位置させ、溶着用
加圧治具を蓋材の内側に位置させ、溶着用加圧治具を外
周側に移動させて蓋材を加圧し、筒状容器に密着させ、
高周波加熱コイルに高周波電流を流し、誘導加熱で熱可
塑性樹脂を溶かして溶着させる。[Function] In the present invention, a concave lid is fitted to the open end of the cylindrical container, this is positioned inside the high-frequency heating coil, a pressure jig for welding is positioned inside the lid, Move the pressure jig for welding to the outer periphery side and pressurize the lid material to make it tightly adhere to the cylindrical container.
A high-frequency current is passed through a high-frequency heating coil, and the thermoplastic resin is melted and welded by induction heating.

溶着後は溶着用加圧治具を内側へ移動させて外周径を縮
小し、筒状容器を取り去る。After welding, the pressure jig for welding is moved inward to reduce the outer diameter and the cylindrical container is removed.

［実施例］ 本発明の実施例を第１，２図に基いて詳細に説明すると
、ｌは円筒状の容器（以下筒状容器という）で、プラス
チック又は紙等の芯材で形成した筒の内周にアルミニウ
ム箔等の金属箔と熱可塑性樹脂を順次重ねて構成してい
る。２は蓋材で凹状に形成し、その外周に筒状容器に嵌
合する嵌合溝部３を設け、全体をプラスチック又は紙等
の芯材で形成し、その容器側にアルミニウム箔等の金属
箔と熱可塑性樹脂を順次重ねて構成している。[Example] An example of the present invention will be described in detail based on FIGS. 1 and 2. L is a cylindrical container (hereinafter referred to as a cylindrical container), and a tube made of a core material such as plastic or paper is used. The inner periphery is constructed by sequentially overlapping metal foil such as aluminum foil and thermoplastic resin. 2 is a lid material formed into a concave shape, and a fitting groove 3 for fitting into a cylindrical container is provided on the outer periphery of the lid material, the whole is formed of a core material such as plastic or paper, and a metal foil such as aluminum foil is provided on the container side. It is constructed by sequentially stacking and thermoplastic resin.

４は絶縁材治具で、中央に凸形をした操作用孔５を有し
、下端部に高周波加熱コイル６を設けている。Reference numeral 4 denotes an insulating material jig, which has a convex operating hole 5 in the center and a high frequency heating coil 6 at its lower end.

７は溶着用加圧治具で、全体が凸形で外周が垂直面に形
成され、前記操作用孔５内に嵌入できるようになってお
り、垂直分割面８．８’、８”から数分割（実施例では
３分割）に分割（第２図参照）できるようになっている
。そして、小径部９には外周にコイルバネ１０を設けて
、溶着用加圧治具７を常時縮小方向（内周方向）側に付
勢している。この溶着用加圧治具７の中央に加圧用孔１
１を設け、この加圧用孔１１の上部を上端が大径になる
テーパー面１２で形成し、下端をテーパー面１３で形成
したピストン棒１４を嵌入できるようになっている。Reference numeral 7 denotes a pressure jig for welding, which is entirely convex and has a vertical outer periphery, so that it can be fitted into the operating hole 5, and has several vertical parts 8.8' and 8''. It can be divided into three parts (in the embodiment, three parts) (see Fig. 2).A coil spring 10 is provided on the outer periphery of the small diameter part 9, so that the welding pressure jig 7 is always moved in the reduction direction (see Fig. 2). Pressure hole 1 is provided in the center of this welding pressure jig 7.
1, the upper part of this pressurizing hole 11 is formed with a tapered surface 12 having a large diameter at the upper end, and a piston rod 14 whose lower end is formed with a tapered surface 13 can be inserted therein.

本実施例は前記のように構成したもので、まずピストン
棒１４を上方に位置させると、溶着用加圧治具７はコイ
ルバネ１０の作用により中心方向へ縮む、このときの溶
着用加圧治具７の外径寸法は蓋材２の凹状部の内側寸法
より若干小さくなっている。The present embodiment is constructed as described above, and when the piston rod 14 is first positioned upward, the welding pressure jig 7 is compressed toward the center by the action of the coil spring 10. The outer diameter of the tool 7 is slightly smaller than the inner dimension of the concave portion of the lid 2.

この状態で蓋材２を装着した筒状容器１を絶縁材治具４
内に挿入すると、第１図に示すように、蓋材２が溶着用
加圧治具７の外側に位置してセットされる。この後、ピ
ストン棒１４を上方より加圧するとピストン棒１４は下
降し、溶着用加圧治具７中心のテーパー状の加圧用孔１
１を外側へ広げる。このため溶着用加圧治具７の外周部
が蓋材２の内周部に当って加圧を行う。この状態を維持
しながら高周波加熱コイル６に高周波電流を流す。この
とき筒状容器ｌおよび蓋材２のアルミニウム箔部分が高
周波誘導加熱により発熱し、アルミニウム箔にコーティ
ングされた熱可塑性樹脂が溶融する。ピストン棒１４は
加圧状態を維持しているので溶融した熱可塑性樹脂は互
いに交り合い筒状容器ｌと蓋材２は溶着される。In this state, the cylindrical container 1 with the lid 2 attached is placed on the insulating material jig 4.
When inserted, the lid material 2 is positioned and set outside the welding press jig 7, as shown in FIG. After this, when the piston rod 14 is pressurized from above, the piston rod 14 descends, and the tapered pressurizing hole 1 at the center of the welding press jig 7
Spread 1 outward. Therefore, the outer periphery of the welding press jig 7 hits the inner periphery of the lid member 2 to apply pressure. A high frequency current is applied to the high frequency heating coil 6 while maintaining this state. At this time, the aluminum foil portions of the cylindrical container 1 and the lid 2 generate heat due to high-frequency induction heating, and the thermoplastic resin coated on the aluminum foil melts. Since the piston rod 14 maintains a pressurized state, the molten thermoplastic resin intersects with each other, and the cylindrical container l and the lid member 2 are welded together.

尚、高周波電流を切っても溶着面が一定温度以下になる
まで加圧は維持する必要がある。溶着面が一定温度以下
になったらピストン棒１４を引き上げ筒状容器ｌを取り
出す。Note that even if the high-frequency current is turned off, the pressure must be maintained until the temperature of the welding surface falls below a certain level. When the welding surface becomes below a certain temperature, the piston rod 14 is pulled up and the cylindrical container l is taken out.

溶着用加圧治具７は絶縁材及び導電材のどちらを用いて
もよく、溶着時の冷却効果を上げるためには水冷または
空冷することが望ましい。The pressure jig 7 for welding may be made of either an insulating material or a conductive material, and is preferably water-cooled or air-cooled in order to increase the cooling effect during welding.

［発明の効果］ 本発明においては、溶着用加圧治具の外周寸法が蓋材凹
状部の寸法より小さくすることができるので、蓋材の寸
法精度を厳しくチエツクすることなく溶着することが可
能となり、蓋材の生産歩留りを向上することができる。[Effects of the Invention] In the present invention, the outer circumferential dimension of the welding press jig can be made smaller than the dimension of the concave portion of the lid material, so welding can be performed without strictly checking the dimensional accuracy of the lid material. Therefore, the production yield of the lid material can be improved.

また、溶着用加圧治具は外周側に径を拡げることができ
るので、蓋材に多少のバラツキがあっても、容易に溶着
強度を設定することができ、かつ溶着不良をなくし、確
実、安定的に溶着を行うことができるなどの利点がある
。In addition, the diameter of the pressure jig for welding can be expanded toward the outer periphery, so even if there is some variation in the lid material, the welding strength can be easily set, eliminating defective welding, and ensuring reliable It has the advantage of being able to perform stable welding.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明に係る筒状容器の高周波溶着装置の一実
施例の断面図、第２図は溶着用加圧治具の平面図、第３
図は従来例の断面図である。 １・・・筒状容器、２・・・蓋材、３・・・嵌合溝部５
４・・・絶縁材治具、５・・・操作用孔、６・・・高周
波加熱コイル、７・・・溶着用加圧治具、８，８”、８
”・・・垂直分割面、９・・・小径部、１０・・・コイ
ルバネ、１１・・・加圧用孔、１２．１３・・・テーパ
ー面、１４・・・ピストン棒。FIG. 1 is a sectional view of an embodiment of the high-frequency welding device for cylindrical containers according to the present invention, FIG. 2 is a plan view of a pressure jig for welding, and FIG.
The figure is a sectional view of a conventional example. DESCRIPTION OF SYMBOLS 1... Cylindrical container, 2... Lid material, 3... Fitting groove part 5
4... Insulating material jig, 5... Operation hole, 6... High frequency heating coil, 7... Pressure jig for welding, 8, 8", 8
”...Vertical dividing surface, 9... Small diameter portion, 10... Coil spring, 11... Pressure hole, 12.13... Tapered surface, 14... Piston rod.

Claims (1)

【特許請求の範囲】[Claims] 芯材の片面に金属箔と熱可塑性樹脂を順次重ねて形成し
た筒状容器の開放端に、同材料で形成した凹状の蓋材を
嵌入して高周波溶着する装置において、高周波加熱コイ
ルを筒状容器の溶着部外周に配置し、溶着時に蓋材の凹
状部内部において外周方向へ移動して加圧する外周を垂
直面で形成した数個に分割された溶着用加圧治具を、蓋
材の内側に位置させたことを特徴とする筒状容器の高周
波溶着装置。In a device that performs high-frequency welding by inserting a concave lid made of the same material into the open end of a cylindrical container formed by sequentially overlapping metal foil and thermoplastic resin on one side of a core material, a high-frequency heating coil is welded into a cylindrical shape. A pressure jig for welding is placed around the outer periphery of the welding part of the container, and is divided into several pieces with an outer periphery formed by a vertical plane. A high-frequency welding device for a cylindrical container characterized by being located inside.
JP1015087A 1989-01-26 1989-01-26 High-frequency welding equipment for cylindrical containers Expired - Lifetime JP2711467B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1015087A JP2711467B2 (en) 1989-01-26 1989-01-26 High-frequency welding equipment for cylindrical containers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1015087A JP2711467B2 (en) 1989-01-26 1989-01-26 High-frequency welding equipment for cylindrical containers

Publications (2)

Publication Number Publication Date
JPH02196632A true JPH02196632A (en) 1990-08-03
JP2711467B2 JP2711467B2 (en) 1998-02-10

Family

ID=11879061

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1015087A Expired - Lifetime JP2711467B2 (en) 1989-01-26 1989-01-26 High-frequency welding equipment for cylindrical containers

Country Status (1)

Country Link
JP (1) JP2711467B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002517336A (en) * 1998-05-29 2002-06-18 ユーピーエム−キンメネ コーポレイション Device for fastening end members to casing
JP2009113867A (en) * 2002-01-25 2009-05-28 Bapco Closures Research Ltd Container closures
JP2010162705A (en) * 2009-01-13 2010-07-29 Q P Corp Method of manufacturing cylindrical bottomed bag, apparatus for manufacturing the same and paste-like material-sealed cylindrical bottomed bag food using the bag
CN107921715A (en) * 2015-10-05 2018-04-17 利乐拉瓦尔集团及财务有限公司 A kind of soldering tip

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002517336A (en) * 1998-05-29 2002-06-18 ユーピーエム−キンメネ コーポレイション Device for fastening end members to casing
JP2009113867A (en) * 2002-01-25 2009-05-28 Bapco Closures Research Ltd Container closures
JP2010162705A (en) * 2009-01-13 2010-07-29 Q P Corp Method of manufacturing cylindrical bottomed bag, apparatus for manufacturing the same and paste-like material-sealed cylindrical bottomed bag food using the bag
CN107921715A (en) * 2015-10-05 2018-04-17 利乐拉瓦尔集团及财务有限公司 A kind of soldering tip

Also Published As

Publication number Publication date
JP2711467B2 (en) 1998-02-10

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