JPH058329A - Method for fixing bung hole of paper container - Google Patents

Method for fixing bung hole of paper container

Info

Publication number
JPH058329A
JPH058329A JP3163212A JP16321291A JPH058329A JP H058329 A JPH058329 A JP H058329A JP 3163212 A JP3163212 A JP 3163212A JP 16321291 A JP16321291 A JP 16321291A JP H058329 A JPH058329 A JP H058329A
Authority
JP
Japan
Prior art keywords
paper container
ultrasonic
horn
spout
welding
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.)
Pending
Application number
JP3163212A
Other languages
Japanese (ja)
Inventor
Hisao Takahashi
尚生 高橋
Nobushige Yasui
信重 安井
Shuichi Ogiwara
秀一 荻原
Kazumi Kurata
和美 倉田
Tadaaki Kume
忠明 久米
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.)
Shikoku Kakoki Co Ltd
Jujo Paper Co Ltd
Original Assignee
Shikoku Kakoki Co Ltd
Jujo Paper 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 Shikoku Kakoki Co Ltd, Jujo Paper Co Ltd filed Critical Shikoku Kakoki Co Ltd
Priority to JP3163212A priority Critical patent/JPH058329A/en
Publication of JPH058329A publication Critical patent/JPH058329A/en
Pending 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
    • 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
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • 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
    • B29C66/50—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
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • B29C66/5324—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length
    • B29C66/53245—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles 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
    • 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
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • B29C66/5324—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length
    • B29C66/53245—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow
    • B29C66/53246—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow said single elements being spouts, e.g. joining spouts to containers
    • B29C66/53247—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow said single elements being spouts, e.g. joining spouts to containers said spouts comprising flanges
    • 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
    • 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
    • B29C66/80—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
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/72—Contents-dispensing means
    • B65D5/74—Spouts
    • B65D5/746—Spouts formed separately from the container
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Making Paper Articles (AREA)

Abstract

PURPOSE:To make it possible to perform completely welding of a flange part without breakage of thin section line part by performing ultrasonic welding under a condition wherein an electric and mechanical stress applied on a horn at the beginning of ultrasonic oscillation does not exceed a stress during running when a bung hole made of a synthetic resin is fixed on a paper container. CONSTITUTION:An ultrasonic horn 28 is moved in the direction of a bung hole 3 made of a synthetic resin and it is pressed to a flange part 5 contact-bonded by a inner face holder 19 to the inner face of a paper container 1 from the outer face side of the paper container. Then, output of an ultrasonic oscillator is transmitted to the horn 28 through a converter 26 and booster 27. In this case, a flange part 5 of the bung hole 3 is welded in the paper container 1 by means of an ultrasonic wave with a frequency of 15-50 KhZ and a vibrational amplitude of 30-150mum, pref. a frequency of 15-25 KhZ and a vibrational amplitude of 90-110mum. It is possible to perform completely welding of the flange part 5 by ultrasonic welding under the condition like this.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、超音波溶着によって、
薄肉部を有する合成樹脂製の注出口を紙容器の所定位置
に取付ける方法に関するものである。BACKGROUND OF THE INVENTION The present invention is based on ultrasonic welding.
The present invention relates to a method of attaching a synthetic resin spout having a thin portion to a predetermined position of a paper container.

【０００２】[0002]

【従来の技術】紙容器は、牛乳、果汁等の容器として広
く用いられている。これらの紙容器のうち、内容物の浸
透性や、長期保存を目的として、アルミニウムを紙に積
層、蒸着した板紙素材を用いたものについては、一般
に、内容物取出しの手段として合成樹脂製の注出口が取
付けられている。この場合、注出口の取付け方法として
は、通常、超音波溶着によって、紙容器の内面側または
外面側の合成樹脂層に、注出口のフランジ部を溶着して
いる。ところが、プルオープン式の注出口のように、切
離し用の薄肉線部がある場合には、一般的な超音波溶着
条件である振動数２０khz 、振幅７０〜８０μｍで融着
を実行すると、薄肉線部が超音波振動によって破断され
ることがある。2. Description of the Related Art Paper containers are widely used as containers for milk, fruit juice and the like. Of these paper containers, those that use a paperboard material obtained by laminating and vapor-depositing aluminum on paper for the purpose of penetrating the contents and long-term storage are generally made of synthetic resin as a means for taking out the contents. The outlet is installed. In this case, as a method of attaching the spout, a flange portion of the spout is generally welded to the synthetic resin layer on the inner surface side or the outer surface side of the paper container by ultrasonic welding. However, if there is a thin wire portion for disconnection, such as a pull-open type spout, if welding is performed at a vibration frequency of 20 kHz and an amplitude of 70 to 80 μm, which is a general ultrasonic welding condition, the thin wire The part may be broken by ultrasonic vibration.

【０００３】このため、特開昭６１−１０４８３３号公
報では、超音波の振動数を２５〜５０khz と高く設定
し、半面、振幅を３０〜６０μｍと低めに設定すること
が提案されている。For this reason, Japanese Patent Laid-Open No. 61-104833 proposes to set the frequency of ultrasonic waves as high as 25 to 50 kHz and to set the amplitude as low as 30 to 60 μm.

【０００４】[0004]

【本発明が解決しようとする課題】本発明は、上記した
薄肉線部の超音波振動による破断の問題を、振動数、振
幅の限定によることなく、別の手段によって解決しよう
とするものである。DISCLOSURE OF THE INVENTION The present invention is intended to solve the above-mentioned problem of breakage of a thin wire portion due to ultrasonic vibration by another means without limiting the frequency and amplitude. .

【０００５】[0005]

【課題を解決するための手段】本発明者らは、一般的な
超音波溶着条件である振動数２０khz 、振幅７０〜８０
μｍの条件で薄肉線部が破断されてしまう原因を詳細に
調べた結果、破断の直接の原因は、超音波の振動数が低
すぎるためではなく、発振開始時の振幅加速中における
ストレスが、ランニングストレスの３００〜５００％と
極めて大きくなってしまうことにあることを見出して、
本発明を完成した。DISCLOSURE OF THE INVENTION The inventors of the present invention have proposed a general ultrasonic welding condition with a frequency of 20 kHz and an amplitude of 70-80.
As a result of detailed investigation of the cause of the thin line portion being broken under the condition of μm, the direct cause of the breakage is not due to the frequency of the ultrasonic wave being too low, but the stress during the amplitude acceleration at the start of oscillation is I found that the running stress was 300 to 500%, which was extremely high.
The present invention has been completed.

【０００６】即ち、本発明は、紙容器の所定位置に対し
て、取付け用のフランジ部と切離し用の薄肉線部とを有
する合成樹脂製注出口を、超音波発振開始時にホーンに
掛かる電気的機械的なストレスがランニング時のストレ
スを上回らない条件で超音波溶着することを、請求項１
の紙容器注出口の取付け方法の特徴とし、更に請求項１
においてランニング時の超音波が振動数１５〜５０khz
、振幅３０〜１５０μｍであることを請求項２の取付
け方法の特徴とする。That is, according to the present invention, a synthetic resin spout having a flange portion for attachment and a thin wire portion for separation is attached to a predetermined position of a paper container by an electrical hook applied to a horn at the start of ultrasonic oscillation. The ultrasonic welding is performed under the condition that the mechanical stress does not exceed the stress during running.
2. The method of attaching a paper container spout according to claim 1, further comprising:
Ultrasonic waves during running at a frequency of 15 to 50khz
The amplitude is 30 to 150 μm, which is a feature of the mounting method according to claim 2.

【０００７】本発明においては、超音波発振開始時にホ
ーンに掛かる電気的機械的なストレスがランニング時の
ストレスを上回らない条件で超音波溶着する装置を使用
するが、このような装置としては、米国特許第４２７７
７１０号明細書に記載されているピエゾ電気超音波発生
器用の制御回路を内蔵するものであって、米国デュケイ
ン社製の超音波プラスチック溶着機 Model 48D700P或い
はModel 40D1500Pを例示することができる。In the present invention, a device for ultrasonic welding is used under the condition that the electromechanical stress applied to the horn at the start of ultrasonic oscillation does not exceed the stress during running. Patent No. 4277
An ultrasonic plastic welding machine Model 48D700P or Model 40D1500P manufactured by Duquein Company, USA, which has a built-in control circuit for a piezoelectric electric ultrasonic generator described in Japanese Patent No. 710, can be exemplified.

【０００８】[0008]

【作用】本発明においては、取付け用のフランジ部と切
離し用の薄肉線部とを有する合成樹脂製注出口を、紙容
器の所定位置に取付ける際に、超音波発振開始時にホー
ンに掛かる電気的機械的なストレスがランニング時のス
トレスを上回らない条件で超音波溶着するので、合成樹
脂製注出口に対しても、発振開始時であってもランニン
グ時以上の大きなストレスが掛ることはない。薄肉線部
は、フランジ部を紙容器外面に溶着する際に、そのエネ
ルギーで破断することはないように設計されているの
で、本発明においては、ランニング時以上のエネルギー
が掛らない以上、薄肉線部は破断することはない。According to the present invention, when a synthetic resin pouring spout having a mounting flange portion and a thin wire portion for separating is attached to a predetermined position of a paper container, an electrical hook applied to the horn at the start of ultrasonic oscillation. Since the ultrasonic welding is performed under the condition that the mechanical stress does not exceed the stress during running, the synthetic resin spout will not be subjected to a large stress as compared with during running even at the start of oscillation. The thin-walled wire portion is designed so that when the flange portion is welded to the outer surface of the paper container, it is designed so as not to be broken by its energy. The line part does not break.

【０００９】[0009]

【実施例】以下に、本発明を図面に示す実施例に基いて
説明する。図１は、合成樹脂製注出口が紙容器の所定位
置に取付けられた箇所を示す部分断面図である。この図
１において、紙容器１の所定位置に設けられた穴２に対
して、合成樹脂製注出口３が取付けられている。合成樹
脂製注出口３は、取付け用のフランジ部５と切離し用の
薄肉線部７、並びに筒部４と摘みリング６とを有してお
り、紙容器１の穴２の内面側から筒部４が差込まれ、更
に紙容器１の内面側の合成樹脂層とフランジ部５とが溶
着されている。また、この注出口３は、紙容器１の外面
側に取付けられていても良い。The present invention will be described below with reference to the embodiments shown in the drawings. FIG. 1 is a partial cross-sectional view showing a portion where a synthetic resin spout is attached to a predetermined position of a paper container. In FIG. 1, a synthetic resin pouring port 3 is attached to a hole 2 provided at a predetermined position of a paper container 1. The synthetic resin spout 3 has a flange 5 for mounting, a thin wire portion 7 for separating, a tube portion 4 and a knob ring 6, and the tube portion from the inner surface side of the hole 2 of the paper container 1 4, the synthetic resin layer on the inner surface side of the paper container 1 and the flange portion 5 are welded together. The spout 3 may be attached to the outer surface side of the paper container 1.

【００１０】図２は、本発明の実施例に係る取付け方法
に用いる溶着装置を示す側面図である。この溶着装置
は、紙容器１の穴２に差込まれただけの溶着前の注出口
３のフランジ部５を紙容器１の内面側に溶着するもので
ある。つまり、支持台１５には、エアシリンダ１６が固
定されており、紙容器載置台１３及び紙容器保持枠１４
を昇降させる。また、前記支持台１５の上部には、内面
保持体１９が取付けられており、紙容器載置台１３が紙
容器１を溶着位置まで上昇させたときに、この紙容器１
を内面から保持する。FIG. 2 is a side view showing a welding device used in the mounting method according to the embodiment of the present invention. This welding device welds the flange portion 5 of the spout 3 just before being inserted into the hole 2 of the paper container 1 to the inner surface of the paper container 1 before welding. That is, the air cylinder 16 is fixed to the support table 15, and the paper container mounting table 13 and the paper container holding frame 14 are provided.
Raise and lower. An inner surface holder 19 is attached to the upper part of the support table 15, and when the paper container mounting table 13 raises the paper container 1 to the welding position, the paper container 1
Hold from inside.

【００１１】更に、支持台１５に固定された溶着装置載
置台２１には、先端に凹部２２を有する超音波ホーン２
８、ブースタ２７、コンバータ２６、並びに超音波ホー
ン２８の水平方向移動を行なうエアシリンダ２０からな
る溶着装置が取付けられている。既述した通り、この溶
着装置としては、米国デュケイン社製の超音波プラスチ
ック溶着機 Model 48D700P或いはModel40D1500Pを用い
ることができる。Further, the welding device mounting base 21 fixed to the support base 15 has an ultrasonic horn 2 having a recess 22 at the tip thereof.
8, a booster 27, a converter 26, and a welding device including an air cylinder 20 that horizontally moves the ultrasonic horn 28 are attached. As described above, as the welding device, an ultrasonic plastic welding machine Model 48D700P or Model 40D1500P manufactured by Duquein, USA can be used.

【００１２】図２に示す実施例において、穴２に注出口
３を差込まれた紙容器１は、胴部を保持枠１４に保持さ
れた状態で紙容器載置台１３に載置された後、エアシリ
ダー１６の作用により上昇され、内面保持体１９を紙容
器の中に挿入させながら、注出口３の筒部４が超音波ホ
ーン２８の凹部２２に対向する位置で停止される。この
とき、注出口３は、内面保持体１９に押圧されて、フラ
ンジ部５が穴２の周囲の紙容器内面に圧着されている。In the embodiment shown in FIG. 2, the paper container 1 having the spout 3 inserted into the hole 2 is placed on the paper container mounting table 13 with the body portion held by the holding frame 14. The air cylinder 16 is raised by the action of the air cylinder 16, and the cylindrical portion 4 of the spout 3 is stopped at a position facing the concave portion 22 of the ultrasonic horn 28 while inserting the inner surface holder 19 into the paper container. At this time, the spout 3 is pressed by the inner surface holder 19 and the flange portion 5 is pressure-bonded to the inner surface of the paper container around the hole 2.

【００１３】次に、エアシリンダ２０の作用により、超
音波ホーン２８が注出口３の方向に水平移動して、その
先端の凹部２２に注出口３の筒部４を内包してしまうと
共に、内面保持体１９によって紙容器内面に圧着されて
いるフランジ部５に対して、その紙容器外面側から押圧
する。このときに図示しない超音波発生器の出力をコン
バータ２６、ブースタ２７を介してホーン２８に伝達
し、振動数１５〜５０khz 、振幅３０〜１５０μｍ、好
ましくは振動数１５〜２５khz 、振幅９０〜１１０μｍ
の超音波により、注出口３のフランジ部５を紙容器１内
面に溶着することができる。溶着終了後、エアシリンダ
２０の作用により溶着装置は、原位置に復帰し、また注
出口３を取付けられた紙容器１は、エアシリンダ１６の
作用により、原位置に復帰する。紙容器１は、これ以降
の工程で、内容物を充填され、密封されて、完成させら
れる。Next, by the action of the air cylinder 20, the ultrasonic horn 28 horizontally moves in the direction of the spout 3, and the concave portion 22 at the tip of the ultrasonic horn 28 encloses the tubular portion 4 of the spout 3 and the inner surface The holding member 19 presses the flange portion 5 pressed against the inner surface of the paper container from the outer surface side of the paper container. At this time, the output of an ultrasonic generator (not shown) is transmitted to the horn 28 via the converter 26 and the booster 27, and the frequency is 15 to 50 kHz, the amplitude is 30 to 150 μm, preferably the frequency is 15 to 25 kHz, and the amplitude is 90 to 110 μm.
With the ultrasonic wave, the flange portion 5 of the spout 3 can be welded to the inner surface of the paper container 1. After the welding is completed, the welding device is returned to the original position by the action of the air cylinder 20, and the paper container 1 to which the spout 3 is attached is returned to the original position by the action of the air cylinder 16. In the subsequent steps, the paper container 1 is filled with contents, sealed, and completed.

【００１４】[0014]

【発明の効果】本発明においては、発振開始時でもラン
ニング時以上の大きなストレスの掛からない条件で超音
波溶着するので、切離し用の薄肉線部を有する合成樹脂
製注出口であっても、フランジ部と紙容器内面との溶着
に際して、薄肉線部が破断してしまう恐れがなく、しか
もフランジ部の溶着は完全に行なうことができる。According to the present invention, since ultrasonic welding is performed even at the start of oscillation under the condition that a large stress is not applied when running, a synthetic resin spout having a thin wire portion for disconnection can be used even if a flange is used. There is no fear that the thin-walled wire portion will be broken during the welding of the portion and the inner surface of the paper container, and the flange portion can be completely welded.

【図面の簡単な説明】[Brief description of drawings]

【図１】合成樹脂製注出口が紙容器の所定位置に取付け
られた箇所を示す部分断面図である。FIG. 1 is a partial cross-sectional view showing a portion where a synthetic resin spout is attached to a predetermined position of a paper container.

【図２】本発明の取付け方法に用いる溶着装置を示す側
面図である。FIG. 2 is a side view showing a welding device used in the attachment method of the present invention.

【符号の説明】[Explanation of symbols]

１ 紙容器 ２ 穴 ３ 合成樹脂製注出口 ５ フランジ部 ７ 薄肉線部 ９ 内面保持体 ２０ エアシリンダ ２２ 凹部 ２８ 超音波ホーン 1 paper container Two holes 3 Synthetic resin spout 5 Flange 7 Thin line part 9 Inner surface holder 20 air cylinders 22 recess 28 ultrasonic horn

フロントページの続き (72)発明者 安井 信重 東京都北区王子５丁目21番２号 十條製紙 株式会社リキツドパツケージングセンター 内 (72)発明者 荻原 秀一 東京都北区王子５丁目21番２号 十條製紙 株式会社リキツドパツケージングセンター 内 (72)発明者 倉田 和美 東京都北区王子５丁目21番２号 十條製紙 株式会社リキツドパツケージングセンター 内 (72)発明者 久米 忠明 徳島県板野郡北島町太郎八須字西の川10番 地１ 四国化工機株式会社本社内Continued front page    (72) Inventor Nobushige Yasui             5-21-2 Oji, Kita-ku, Tokyo Jujo Paper Manufacturing             Liquid Packaging Co., Ltd.             Within (72) Inventor Shuichi Ogiwara             5-21-2 Oji, Kita-ku, Tokyo Jujo Paper Manufacturing             Liquid Packaging Co., Ltd.             Within (72) Inventor Kazumi Kurata             5-21-2 Oji, Kita-ku, Tokyo Jujo Paper Manufacturing             Liquid Packaging Co., Ltd.             Within (72) Inventor Tadaaki Kume             No. 10 Nishinokawa, Taro Yasu, Taro Kitajima-cho, Itano-gun, Tokushima Prefecture             Ground 1 Shikoku Kakoki Co., Ltd. head office

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 紙容器の所定位置に対して、取付け用の
フランジ部と切離し用の薄肉線部とを有する合成樹脂製
注出口を、超音波発振開始時にホーンに掛かる電気的機
械的なストレスがランニング時のストレスを上回らない
条件で超音波溶着することを特徴とする紙容器注出口の
取付け方法。1. An electromechanical stress applied to a horn at the start of ultrasonic oscillation of a synthetic resin spout having a mounting flange portion and a thin-walled portion for separation at a predetermined position of a paper container. Is a method of attaching a paper container spout, characterized in that ultrasonic welding is performed under conditions that do not exceed stress during running. 【請求項２】 ランニング時の超音波が振動数１５〜５
０khz 、振幅３０〜１５０μｍであることを特徴とする
請求項１に記載の紙容器注出口の取付け方法。2. The ultrasonic waves during running have a frequency of 15 to 5
The method for mounting a paper container spout according to claim 1, wherein the frequency is 0 kHz and the amplitude is 30 to 150 μm.
JP3163212A 1991-07-04 1991-07-04 Method for fixing bung hole of paper container Pending JPH058329A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3163212A JPH058329A (en) 1991-07-04 1991-07-04 Method for fixing bung hole of paper container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3163212A JPH058329A (en) 1991-07-04 1991-07-04 Method for fixing bung hole of paper container

Publications (1)

Publication Number Publication Date
JPH058329A true JPH058329A (en) 1993-01-19

Family

ID=15769432

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3163212A Pending JPH058329A (en) 1991-07-04 1991-07-04 Method for fixing bung hole of paper container

Country Status (1)

Country Link
JP (1) JPH058329A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996025346A1 (en) * 1995-02-15 1996-08-22 Riso Kagaku Corporation Bag-in-carton and method of and apparatus for manufacturing the same
US6228011B1 (en) 1995-02-15 2001-05-08 Riso Kagaku Corporation Bag-in-carton and method and device for forming the bag-in-carton
CN102974711A (en) * 2012-12-13 2013-03-20 句容佳泰金属制品有限公司 Steel-bowl material receiving clamp applied to punching machine
CN111876585A (en) * 2020-07-29 2020-11-03 北京理工大学 Sound wave reduction homogenization regulation and control device and method in welding residual stress generation process

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996025346A1 (en) * 1995-02-15 1996-08-22 Riso Kagaku Corporation Bag-in-carton and method of and apparatus for manufacturing the same
US5829637A (en) * 1995-02-15 1998-11-03 Riso Kagaku Corporation Bag-in-carton and method and device for forming the bag-in-carton
US6228011B1 (en) 1995-02-15 2001-05-08 Riso Kagaku Corporation Bag-in-carton and method and device for forming the bag-in-carton
CN102974711A (en) * 2012-12-13 2013-03-20 句容佳泰金属制品有限公司 Steel-bowl material receiving clamp applied to punching machine
CN111876585A (en) * 2020-07-29 2020-11-03 北京理工大学 Sound wave reduction homogenization regulation and control device and method in welding residual stress generation process
US11919040B2 (en) 2020-07-29 2024-03-05 Beijing Institute Of Technology Control device and control method for reducing and homogenizing welding residual stress by acoustic wave

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