JPS6251733B2 - - Google Patents

Info

Publication number
JPS6251733B2
JPS6251733B2 JP58225014A JP22501483A JPS6251733B2 JP S6251733 B2 JPS6251733 B2 JP S6251733B2 JP 58225014 A JP58225014 A JP 58225014A JP 22501483 A JP22501483 A JP 22501483A JP S6251733 B2 JPS6251733 B2 JP S6251733B2
Authority
JP
Japan
Prior art keywords
anvil
film
ultrasonic transducer
seal
ultrasonic
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.)
Expired
Application number
JP58225014A
Other languages
Japanese (ja)
Other versions
JPS60123325A (en
Inventor
Juji Sawa
Noriaki Asano
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.)
Kureha Corp
Original Assignee
Kureha 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 Kureha Corp filed Critical Kureha Corp
Priority to JP58225014A priority Critical patent/JPS60123325A/en
Publication of JPS60123325A publication Critical patent/JPS60123325A/en
Priority to KR2019870016274U priority patent/KR880000133Y1/en
Publication of JPS6251733B2 publication Critical patent/JPS6251733B2/ja
Granted 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36—Bending and joining, e.g. for making hollow articles
    • B29C53/38—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
    • B29C53/48—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively
    • B29C53/50—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively using internal forming surfaces, e.g. mandrels
    • 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
    • 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
    • B29C65/083—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil
    • B29C65/086—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil using a rotary anvil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
    • B29C65/7888—Means for handling of moving sheets or webs
    • B29C65/7894—Means for handling of moving sheets or webs of continuously moving sheets or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/49—Internally supporting the, e.g. tubular, 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
    • B29C66/73—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
    • 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
    • B29C66/81415—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 bevelled
    • B29C66/81417—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 bevelled being V-shaped
    • 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
    • B29C66/81433—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 being toothed, i.e. comprising several teeth or pins, or being patterned
    • B29C66/81435—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 being toothed, i.e. comprising several teeth or pins, or being patterned comprising several parallel ridges, e.g. for crimping
    • 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
    • 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
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • 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
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/849—Packaging machines

Landscapes

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

Description

【発明の詳細な説明】 この発明は、自動充填包装機あるいは製袋機に
用いられ、超音波エネルギにより熱可塑性フイル
ムをシールしてチユーブ状にする超音波連続シー
ル装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ultrasonic continuous sealing device that is used in an automatic filling and packaging machine or a bag making machine and seals a thermoplastic film into a tube shape using ultrasonic energy.

この種の装置としては、第１図１ないし３に示
されるものが知られている。 As this type of apparatus, those shown in FIGS. 1 to 3 are known.

すなわち同図１は、筒形のフオーミングプレー
ト１において筒状にされて右方に送り出される熱
可塑性フイルム２の内部に平板状のアンビル（受
け治具）３を貫通せしめ、上方からは上記フイル
ム２の重ね合わせ部に超音波振動子に取り付けら
れ、先端が半球状の円錐形をなすホーン４を加圧
して、振動子からの超音波エネルギをフイルムの
重ね合わせ部に与えて該重ね合わせ部を連続的に
シールするものである。この方法によるとホーン
４のフイルムとの接触面積はきわめて小さいの
で、シール幅は狭くなり、シール面での引張り強
度も、シール面に垂直方向でのＴ剥離強度も弱い
ものとなつてしまう。 That is, in FIG. 1, a flat anvil (receiving jig) 3 is passed through the inside of a thermoplastic film 2 which is formed into a cylinder and sent out to the right on a cylindrical forming plate 1, and the film is inserted from above. A horn 4, which is attached to an ultrasonic vibrator and has a conical tip with a hemispherical tip, is attached to the overlapping portion of the films 2 and 2, and the ultrasonic energy from the vibrator is applied to the overlapping portion of the film, thereby applying pressure to the overlapping portion of the film. It seals continuously. According to this method, since the contact area of the horn 4 with the film is extremely small, the seal width becomes narrow, and the tensile strength at the seal surface and the T-peel strength in the direction perpendicular to the seal surface become weak.

同図２のものにあつては、アンビル３は断面が
半円形の突条とし、ホーン４の先端を平面状とし
ているので、フイルムとの接触は線状となるが前
例のものと比べて、そのシール幅は大きくなら
ず、シール強度においてはあまり改良されない。 In the case of the one shown in FIG. 2, the anvil 3 has a protrusion with a semicircular cross section, and the tip of the horn 4 is flat, so the contact with the film is linear, but compared to the previous example, The seal width is not increased and the seal strength is not significantly improved.

そこで、シール幅を拡げるために、同図３のよ
うにアンビル３を歯車状の回転体とし、その周囲
に歯状をなす凹凸条を設け、アンビル３を回転さ
せながら、一定幅をもつミシン目状のシールを行
うことも試みられている。しかしながら、この方
法ではシールが連続的でないため、完全密封を要
求されるシール、例えば食品包装におけるシール
には不向きであるという欠点をもつ。 Therefore, in order to widen the seal width, as shown in Figure 3, the anvil 3 is made into a gear-like rotating body, and tooth-shaped uneven stripes are provided around the anvil 3, and while the anvil 3 is rotated, perforations with a constant width are formed. Attempts have also been made to create a similar seal. However, this method has the disadvantage that it is not suitable for seals that require complete sealing, such as seals for food packaging, because the seal is not continuous.

本発明は、上述の従来装置の欠点を解消し、十
分なシール強度をもち、しかも完全密封が保証さ
れる超音波連続シール装置を提供することを、そ
の目的とするものである。 SUMMARY OF THE INVENTION An object of the present invention is to provide an ultrasonic continuous sealing device that eliminates the drawbacks of the conventional devices described above, has sufficient sealing strength, and ensures complete sealing.

本発明は、超音波振動子と該超音波振動子のエ
ネルギを受けるアンビルとを備え、筒状に形成さ
れた熱可塑性フイルムの重ね合わせ部を上記超音
波振動子とアンビルとで加圧しながら連続してシ
ールし、チユーブを形成するものにおいて、 アンビルが、フイルムの流れに対して静止して
配置され、かつフイルムとの接触面に、上記フイ
ルムの流れ方向に対してほぼ直角に延びる複数の
凹凸条を有することにより構成される。 The present invention includes an ultrasonic transducer and an anvil that receives the energy of the ultrasonic transducer, and continuously pressurizes a superposed portion of a thermoplastic film formed in a cylindrical shape with the ultrasonic transducer and anvil. The anvil is disposed stationary with respect to the flow of the film, and has a plurality of projections and depressions extending substantially perpendicularly to the flow direction of the film on its contact surface with the film. It is constituted by having an article.

以下第２図以降に示される本発明実施例につい
て説明するが、これに先立ち本発明実施例装置を
用いた自動充填包装機の構成について簡単に説明
を加えておく。なお図中において、第１図の従来
装置と共通部分には同一符号を付してある。 The embodiments of the present invention shown in FIG. 2 and subsequent figures will be described below, but prior to this, a brief explanation will be given of the configuration of an automatic filling and packaging machine using the apparatus of the embodiments of the present invention. In the figure, parts common to those of the conventional device shown in FIG. 1 are given the same reference numerals.

第２図は自動充填機全体を、第３図はその要部
を示すもので、帯状の熱可塑性フイルム２は適宜
アイドルローラ１０を経由して、巻筒状のフオー
ミングプレート１に達し、ここで重ね合わせ部を
もつた筒状に形成される。上記筒状に形成された
フイルム２は、フオーミングプレート１を貫通す
る被充填物供給用のスタツフアノズル１１に取り
つけられたサイズリング１２によつて、その寸法
を維持されて重ね合わせ部がシールされると共
に、下方にある一対の引取りローラ５によつて下
方に繰り出される。上記重ね合わせ部のシール
は、フオーミングプレート１の直下にある、超音
波振動子に取り付けられたホーン４と、該ホーン
４からのエネルギを受けるアンビル３１とによつ
てなされる。なおホーン４は、アンビル３に対し
て水平方向で加圧するように、ブラケツト６に取
りつけられ、その加圧力はスプリング７により、
そしてそのコントロールは側圧用スプリング８に
よつて、なされている。 Fig. 2 shows the entire automatic filling machine, and Fig. 3 shows its main parts.A strip-shaped thermoplastic film 2 passes through an idle roller 10 as needed to reach a cylindrical forming plate 1. It is formed into a cylindrical shape with overlapping parts. The film 2 formed into a cylindrical shape is maintained in its size by a size ring 12 attached to a stuffing nozzle 11 for supplying the filling material passing through the forming plate 1, and the overlapping portion is sealed. At the same time, it is fed out downward by a pair of take-up rollers 5 located below. The overlapping portion is sealed by a horn 4 attached to an ultrasonic transducer located directly below the forming plate 1, and an anvil 31 that receives energy from the horn 4. The horn 4 is attached to the bracket 6 so as to apply pressure to the anvil 3 in the horizontal direction, and the pressure is applied by a spring 7.
This control is performed by a lateral pressure spring 8.

本発明は上記アンビル３１に改良を施したもの
である。 The present invention is an improvement on the anvil 31 described above.

アンビル３１は、ガイドリングをも備えた中空
の円筒体３に一体的に形成されその位置は固定さ
れている。すなわち円筒体３は、中空の円筒部３
２の上端に筒状に形成されるフイルムを所望のサ
イズに保持するガイドリング部３３を有し、円筒
部３２の外周面には軸方向に延びる突条をなすア
ンビル３１を備えている。 The anvil 31 is integrally formed with the hollow cylindrical body 3 that also includes a guide ring, and its position is fixed. That is, the cylindrical body 3 is a hollow cylindrical part 3
The cylindrical portion 32 has a guide ring portion 33 at its upper end that holds the cylindrical film at a desired size, and an anvil 31 that is a protrusion extending in the axial direction on the outer peripheral surface of the cylindrical portion 32.

アンビル３１の高さ（円筒体３の半径方向長
さ）は、ガイドリング部３３の半径位置と同じレ
ベルに設定されている。アンビル３１の外周面に
は、その長さ方向（フイルムの流れ方向）ほぼ全
域にわたり、長さ方向に対して直角な方向に複数
の溝３６が平坦部３５と交互に配列されて設けら
れている。溝３６の形状は、フイルムとの接触に
際して、あまり摩擦抵抗を増大しないものが望ま
しい。またアンビル３１の長手方向に延びる両隅
の稜線３７も、フイルムとの接触に際しての摩擦
抵抗を低いものとするように、丸みを帯びたもの
となつている。 The height of the anvil 31 (the radial length of the cylindrical body 3) is set to the same level as the radial position of the guide ring portion 33. On the outer peripheral surface of the anvil 31, a plurality of grooves 36 are provided in a direction perpendicular to the length direction and are arranged alternately with flat portions 35 over almost the entire length of the anvil 31 in the length direction (film flow direction). . The shape of the groove 36 is preferably one that does not significantly increase frictional resistance when it comes into contact with the film. The ridgelines 37 at both corners of the anvil 31 extending in the longitudinal direction are also rounded so as to reduce the frictional resistance upon contact with the film.

以上のように構成されるアンビルを用いて、フ
イルムの重ね合わせ部をシールするならば、シー
ル幅が十分に確保できると共に、超音波振動エネ
ルギはフイルムと線接触をなすアンビルの平坦部
に集中するためにしつかりとシールされ、しかも
フイルムは一定の送り速度のもとでシールされる
ので、そのシールは連続的になされることとな
る。 If the anvil configured as described above is used to seal the overlapped portion of the film, a sufficient seal width can be secured, and the ultrasonic vibration energy is concentrated on the flat part of the anvil that makes line contact with the film. Because of this, the film is tightly sealed, and since the film is sealed at a constant feeding speed, the sealing is continuous.

かくして本発明により、フイルムのシールを行
うならば、一定シール幅を有すが故にシール強度
の向上を図ることができ、しかもそのシールが連
続的であるが故に密封性が確保され、その結果シ
ールによつて形成される包装袋の強度及び信頼性
を一段と向上せしめ、かかる包装袋の使用用途を
も拡大することができる。 Thus, when sealing a film according to the present invention, the seal strength can be improved because the seal has a constant width, and the seal is continuous, so the sealing performance is ensured, and as a result, the seal The strength and reliability of the packaging bag formed by this method can be further improved, and the uses of such a packaging bag can be expanded.

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

第１図は従来装置を示す斜視図で、同１図は平
板アンビルを用いた場合、同２図は断面が半円形
をなす突条のアンビルを用いた場合、同３図は歯
車状のアンビルを用いた場合をそれぞれ示し、第
２図は本発明実施例のシール装置を用いた自動充
填包装機全体を示す斜視図、第３図は第２図のシ
ール装置周辺を示す正面図、第４図は第３図のア
ンビルで、第４図１は右半分を正面図、左半分を
断面図で示したもので、同２図は同１図の底面図
である。 ３１……アンビル、３５，３６……凹凸条（３
５……平坦部、３６……溝）。 Figure 1 is a perspective view showing a conventional device. Figure 1 shows a case where a flat plate anvil is used, Figure 2 shows a case where a protruding anvil with a semicircular cross section is used, and Figure 3 shows a gear-shaped anvil. Fig. 2 is a perspective view showing the entire automatic filling and packaging machine using the sealing device of the embodiment of the present invention, Fig. 3 is a front view showing the vicinity of the sealing device of Fig. 2, and Fig. 4 The figure shows the anvil shown in FIG. 3, and FIG. 4 1 shows the right half as a front view and the left half as a sectional view, and FIG. 2 shows the bottom view of FIG. 1. 31... Anvil, 35, 36... Uneven strips (3
5...flat part, 36... groove).

Claims (1)

【特許請求の範囲】 １ 超音波振動子と該超音波振動子のエネルギを
受けるアンビルとを備え、筒状に形成された熱可
塑性フイルムの重ね合わせ部を上記超音波振動子
とアンビルとで加圧しながら連続してシールし、
チユーブを形成するものにおいて、 アンビルは、フイルムの流れに対して静止して
配置され、かつフイルムとの接触面に、上記フイ
ルムの流れ方向に対してほぼ直角に延びる複数の
凹凸条を有していることを特徴とする超音波連続
シール装置。[Claims] 1. An ultrasonic transducer comprising an ultrasonic transducer and an anvil that receives the energy of the ultrasonic transducer, in which a superposed portion of a thermoplastic film formed in a cylindrical shape is applied by the ultrasonic transducer and anvil. Continuously seal while applying pressure.
In the tube-forming anvil, the anvil is disposed stationary with respect to the flow of the film, and has a plurality of uneven lines extending substantially perpendicularly to the flow direction of the film on its contact surface with the film. An ultrasonic continuous sealing device characterized by:
JP58225014A 1983-11-29 1983-11-29 Ultrasonic continuous sealing device Granted JPS60123325A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP58225014A JPS60123325A (en) 1983-11-29 1983-11-29 Ultrasonic continuous sealing device
KR2019870016274U KR880000133Y1 (en) 1983-11-29 1987-09-24 Supersonic continuous sealing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58225014A JPS60123325A (en) 1983-11-29 1983-11-29 Ultrasonic continuous sealing device

Publications (2)

Publication Number Publication Date
JPS60123325A JPS60123325A (en) 1985-07-02
JPS6251733B2 true JPS6251733B2 (en) 1987-10-31

Family

ID=16822716

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58225014A Granted JPS60123325A (en) 1983-11-29 1983-11-29 Ultrasonic continuous sealing device

Country Status (1)

Country Link
JP (1) JPS60123325A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1338512A2 (en) 2002-02-26 2003-08-27 Cryovac, Inc. Tube-forming unit for a form-fill-seal machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5684645B2 (en) * 2011-05-11 2015-03-18 株式会社イシダ Bag making and packaging machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55154119A (en) * 1979-05-19 1980-12-01 Brother Ind Ltd Supersonic processor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6226192Y2 (en) * 1981-01-23 1987-07-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55154119A (en) * 1979-05-19 1980-12-01 Brother Ind Ltd Supersonic processor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1338512A2 (en) 2002-02-26 2003-08-27 Cryovac, Inc. Tube-forming unit for a form-fill-seal machine
EP1338512A3 (en) * 2002-02-26 2008-12-17 Cryovac, Inc. Tube-forming unit for a form-fill-seal machine

Also Published As

Publication number Publication date
JPS60123325A (en) 1985-07-02

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