JPH08301237A - Heatseal device - Google Patents

Heatseal device

Info

Publication number
JPH08301237A
JPH08301237A JP7129458A JP12945895A JPH08301237A JP H08301237 A JPH08301237 A JP H08301237A JP 7129458 A JP7129458 A JP 7129458A JP 12945895 A JP12945895 A JP 12945895A JP H08301237 A JPH08301237 A JP H08301237A
Authority
JP
Japan
Prior art keywords
heat seal
film
horizontal
seal
heat
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
JP7129458A
Other languages
Japanese (ja)
Other versions
JP3084701B2 (en
Inventor
Yuichi Maruyama
裕一 丸山
Yasuhito Miyazawa
泰人 宮澤
Yoshimori Takahashi
吉守 高橋
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.)
Nippon Seiki Co Ltd
Original Assignee
Nippon Seiki 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 Nippon Seiki Co Ltd filed Critical Nippon Seiki Co Ltd
Priority to JP07129458A priority Critical patent/JP3084701B2/en
Publication of JPH08301237A publication Critical patent/JPH08301237A/en
Application granted granted Critical
Publication of JP3084701B2 publication Critical patent/JP3084701B2/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
    • B29C66/80—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
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • B29C66/03—After-treatments in the joint area
    • B29C66/032—Mechanical after-treatments
    • B29C66/0326—Cutting, e.g. by using waterjets, or perforating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • 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
    • B29C66/70—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
    • B29C66/81—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
    • B29C66/81—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
    • B29C66/816—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 mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8167—Quick change joining tools or surfaces
    • 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
    • B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • 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
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83511—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums
    • B29C66/83513—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums cooperating jaws mounted on rollers, cylinders or drums and moving in a closed path
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping

Landscapes

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

Abstract

PURPOSE: To provide a heatseal device which is easily produced and of which parts can be easily exchanged while keeping the clearance between the seal members almost constant. CONSTITUTION: Protrusions 24B setting a clearance at which a pair of seal members 24 are positioned to butt against and contact each other, are provided at both ends thereof on the outer peripheral face of the seal members fixed to a pair of horizontal heatseal roll bodies 23 respectively. The outer diameter of the heatseal outer peripheral face of the middle part of the seal member 24 is made smaller by a little smaller size than the thickness of the film F on the basis of the outer peripheral diameter of the protrusion 24B setting the clearance to always appropriately pressurize and heat the film F.

Description

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

【０００１】[0001]

【産業上の利用分野】本発明はフィルム包装機等に用い
られるフィルムを熱シールするヒートシール装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat sealing device for heat sealing a film used in a film packaging machine or the like.

【０００２】[0002]

【従来の技術】従来のこの種のヒートシールロールが用
いられるヒートシール装置として、たとえば特公平４−
６９８７２号公報などに示されているように、連続移送
されるフィルムを折返し、そのフィルムの折返し両端縁
を重ねて縦シール機構により縦シールし、この縦シール
箇所により包装フィルムを筒状に成形し、この筒状に成
形されたフィルムを横シール機構により横シールして包
装袋となる底部を成形し、これにより有底筒状に形成さ
れたフィルム内に充填機構によって液体などからなる内
容物を充填し、さらにフィルムの送りとともに横シール
機構により横シールして小袋を製袋した後、小袋を成形
した横シール箇所の中間部をカッタ機構により単包の小
袋として切断して搬出したり、あるいは横シール機構に
より横シールして小袋を製袋した後に、そのカッタ機構
を停止状態とし、連続して小袋が繋がった連包状態の小
袋を搬出させて、たとえば収納箱内に梱包して包装する
ようにしたものが知られている。2. Description of the Related Art As a conventional heat seal device using this type of heat seal roll, for example, Japanese Patent Publication No.
As disclosed in Japanese Patent Publication No. 69872, the film that is continuously transferred is folded back, and the folded back both edges are overlapped and vertically sealed by a vertical sealing mechanism, and the packaging film is formed into a tubular shape by the vertical sealing location. , The tubular film is laterally sealed by a horizontal sealing mechanism to form a bottom part to be a packaging bag, and the contents formed of liquid or the like are filled in the tubular film with a bottom by a filling mechanism. After filling and further feeding the film, it is horizontally sealed by the horizontal sealing mechanism to make a pouch, and then the middle part of the lateral sealing part where the pouch is molded is cut out as a single pouch by the cutter mechanism and carried out, or After laterally sealing with the horizontal sealing mechanism to produce pouches, the cutter mechanism is stopped and the continuous pouches in which the pouches are continuously connected are carried out. Those so as to packaging and packing in the storage box For example are known.

【０００３】この場合、ロール状に巻かれた原反フィル
ムから引き回し案内されたフィルムを折り返し案内し、
この案内された二つ折りフィルムは前述したように縦シ
ール機構と横シール機構により製袋しつつ内容物を充填
包装されるが、この縦シール機構と横シール機構には、
それぞれ相互に接近させて平行に配置されたヒートシー
ルロール本体を互いに逆方向に回転駆動し、この各ヒー
トシールロール本体に設けられたヒートシール部材の間
にフィルムを挟み込んで通過させつつ加圧，加熱するこ
とによりフィルムの内側に存在する液体や粘稠物質など
の内容物を上方もしくは下方に追い出しながら、前記フ
ィルムを溶融させて封着するようにしている。In this case, the film wound around and guided from the original film wound into a roll is folded back and guided,
The guided bi-fold film is filled with the contents while making the bag by the vertical sealing mechanism and the horizontal sealing mechanism as described above.
The heat-sealing roll main bodies arranged in parallel with each other are driven to rotate in opposite directions, and the film is sandwiched between the heat-sealing members provided on each of the heat-sealing roll main bodies, and the film is pressed while passing. While heating, the contents such as liquid and viscous substance existing inside the film are driven upward or downward, and the film is melted and sealed.

【０００４】ところで、このようなヒートシールに用い
られるフィルムは数十ミクロンといった極めて薄いもの
であり、この薄いフィルムを重ね合わせて熱シールする
ためには対をなすヒートシールロール本体の相互に設け
られたヒートシール部材間の間隔を適正に調整すること
が必要となる。By the way, the film used for such heat-sealing is extremely thin such as several tens of microns, and in order to superpose and heat the thin films, a pair of heat-sealing roll bodies are provided to each other. It is necessary to properly adjust the distance between the heat seal members.

【０００５】すなわち、フィルム厚に対して相互のシー
ル部材間の間隔が大きすぎると、フィルムに対する加圧
力が不足してフィルムの溶け込み不良により未シール部
が生じ、また相互のシール部材間の間隔が小さすぎる
と、フィルムに対する加圧力が大となってフィルムの内
側に設けられる溶融樹脂分が押し潰されてシール部分が
薄くなりシール強度が低下する等のシール不良が発生す
るという問題がある。That is, if the distance between the sealing members is too large relative to the film thickness, the pressure applied to the film is insufficient and unsealed portions occur due to defective melting of the film. If it is too small, the pressure applied to the film becomes large, the molten resin component provided inside the film is crushed, the sealing portion becomes thin, and there is a problem that a sealing failure such as a decrease in sealing strength occurs.

【０００６】そこで、前記縦シール機構の各縦ヒートシ
ールロール本体に設けられたそれぞれの縦シール部材の
クリアランス調整、あるいは横シール機構の各横ヒート
シールロール本体に設けられたそれぞれの横シール部材
のクリアランス調整は、対をなす縦あるいは横のヒート
シールロール本体の一方を設定された位置にて回転可能
に支持し、他方のヒートシールロール本体部分を一方の
ヒートシールロール本体に対して接離移動可能に、かつ
回転自在に支持し、この他方のヒートシールロール本体
をたとえばスプリングのばね圧によって一方のヒートシ
ールロール本体に対し変位させて調整するようにしてい
る。Therefore, the clearance adjustment of each vertical seal member provided on each vertical heat seal roll main body of the vertical seal mechanism, or the adjustment of each horizontal seal member provided on each horizontal heat seal roll main body of the horizontal seal mechanism. For clearance adjustment, one of a pair of vertical or horizontal heat seal roll bodies is rotatably supported at a set position, and the other heat seal roll body is moved toward and away from one heat seal roll body. It is rotatably and rotatably supported, and the other heat-sealing roll main body is adjusted by being displaced with respect to the one heat-sealing roll main body by the spring pressure of a spring, for example.

【０００７】上述した縦シール機構あるいは横シール機
構のヒートシールロール本体にあっては、それぞれのシ
ール部材間のクリアランス調整を作業者の勘をたよりに
設定しているために、一般的に数十ミクロンの厚さを有
するフィルムに対し、その手作業によって数ミクロン〜
十数ミクロン程度のクリアランス調整を行うことが非常
に厄介であり、それぞれのヒートシールロール本体によ
る縦シール部分あるいは横シール部分にシール不良が発
生する虞れが極めて高いという問題があった。In the above-described heat seal roll main body of the vertical seal mechanism or the horizontal seal mechanism, the clearance between the respective seal members is generally set in consideration of the operator's intuition, and therefore, it is generally several tens. For a film with a thickness of micron
There is a problem that it is very difficult to adjust the clearance of about ten and several microns, and there is a high possibility that a defective seal will occur in the vertical seal portion or the horizontal seal portion by each heat seal roll body.

【０００８】この点を考慮するものとして、特公平４−
６９８７２号公報では、図９および図10に示すように、
たとえば横シール機構においては、互いに接近させて平
行に配置された横ヒートシールロール本体１にそれぞれ
フィルムＦを挟持状態で熱シールするシール部材２を設
け、前記一対のヒートシールロール本体１のそれぞれの
両端部に外周面にて相互に接触する位置規制フランジ３
を設け、この位置規制フランジ３の外径寸法より若干径
小として前記シール部材２の外周面の外径寸法を設定し
て構成している。In consideration of this point, Japanese Patent Publication No. 4-
In Japanese Patent Publication No. 69872, as shown in FIGS. 9 and 10,
For example, in the horizontal sealing mechanism, the horizontal heat-sealing roll main bodies 1 arranged close to each other in parallel are provided with the sealing members 2 for heat-sealing the film F in a sandwiched state, and the horizontal heat-sealing roll main bodies 1 are arranged in parallel with each other. Position restriction flanges 3 that contact each other at their outer peripheral surfaces
The outer diameter of the outer peripheral surface of the seal member 2 is set to be slightly smaller than the outer diameter of the position regulating flange 3.

【０００９】この場合、対をなすヒートシールロール本
体１の各位置規制フランジ３の外周面を突き合わせて当
接することにより各ヒートシールロール本体１に取り付
けられたシール部材２間のクリアランスを所定の間隔に
確保でき、規定された条件に加熱されることによってシ
ール部材２間にフィルムＦを適正に加圧・加熱すること
が可能となり、熟練の有無に拘らず誰でも簡単に行うこ
とが可能となり、調整のための工数が低減されるという
メリットがある。In this case, the outer peripheral surfaces of the respective position regulating flanges 3 of the pair of heat seal roll main bodies 1 are butted against each other so that the clearances between the seal members 2 attached to the respective heat seal roll main bodies 1 are kept at a predetermined interval. The film F can be properly pressed and heated between the seal members 2 by being heated to a prescribed condition, and anyone can easily perform it regardless of skill. There is an advantage that the number of man-hours for adjustment is reduced.

【００１０】[0010]

【発明が解決しようとする課題】ところで、前述の位置
規制フランジ３を設けたヒートシールロール本体１とシ
ール部材２との部品製作上、ヒートシールロール本体１
部分とシール部材２とを別体に形成し、各部品を組み付
けて横シール機構を構成することにより、たとえばシー
ル部材２の摩耗などが生じた場合、シール部材２のみの
部品を部分的に交換でき、この交換作業も簡便に行うこ
とができ、また交換による部品コストの低減を計ること
ができるという効果もある。By the way, in manufacturing the parts of the heat seal roll main body 1 and the seal member 2 provided with the above-mentioned position regulating flange 3, the heat seal roll main body 1 is manufactured.
By forming the part and the seal member 2 separately and assembling the respective parts to form a lateral seal mechanism, for example, when the seal member 2 is worn, the part of the seal member 2 is partially replaced. It is also possible to perform this replacement work easily, and it is also possible to reduce the cost of parts due to the replacement.

【００１１】しかしながら、各部品を別体に設けること
によってヒートシールロール本体１の内部に埋設された
図示しないヒータによる加熱温度はヒートシールロール
本体１に設けた位置規制フランジ３と別体に設けられた
シール部材２との熱伝導効率が異なりやすく、またシー
ル部材２の両側に位置した位置規制フランジ３の加熱温
度はシール部材２に比べて低下しやすい面があり、すな
わち両側に位置した円板状に突き出し形成された位置規
制フランジ３の側周面が外気に晒されて放熱しやすい面
があり、結果として位置規制フランジ３の加熱された温
度よりシール部材２の加熱温度が高くなり、この温度差
に起因してそれぞれの熱膨張による寸法差が生じ、最初
に設定したクリアランス寸法から懸け離れた値となって
フィルムＦの加圧・加熱の状態が変化してしまうという
問題がある。However, the heating temperature by a heater (not shown) embedded in the heat seal roll body 1 by providing each component separately is provided separately from the position regulating flange 3 provided in the heat seal roll body 1. The heat conduction efficiency of the seal member 2 is different from that of the seal member 2, and the heating temperature of the position regulating flanges 3 located on both sides of the seal member 2 tends to be lower than that of the seal member 2, that is, the discs located on both sides. The side peripheral surface of the position regulating flange 3 formed in a protruding shape is exposed to the outside air and has a surface for easily radiating heat. As a result, the heating temperature of the seal member 2 becomes higher than the heated temperature of the position regulating flange 3. Due to the temperature difference, a dimensional difference occurs due to the respective thermal expansions, and the value is far from the initially set clearance dimension and the film F is pressed. There is a problem that the state of the heating is changed.

【００１２】またこの点を避けるために、ヒートシール
ロール本体１とシール部材２および位置規制フランジ３
とを一体に形成して熱伝導効率をほぼ一定に保つように
して温度差を極力抑えるようにすることが考えられる
が、各部品構成を一体に形成すると、切削などの加工に
手数がかかり、面倒であるとともにコストも高くなりや
すく、しかもヒートシールロール本体１に形成されたシ
ール部材２などの摩耗などによってクリアランス寸法が
変化してしまうと、シール部材２と一体に形成したヒー
トシールロール本体１自体を交換しなければならず、そ
の交換作業も大変であるとともに交換部品コストも高く
なってしまうという問題がある。Further, in order to avoid this point, the heat seal roll main body 1, the seal member 2 and the position regulating flange 3 are provided.
It is conceivable to form and integrally with each other to keep the heat transfer efficiency almost constant and suppress the temperature difference as much as possible, but if each component structure is integrally formed, it takes time and labor for cutting and the like. The heat seal roll main body 1 formed integrally with the seal member 2 is troublesome and costly high, and when the clearance dimension changes due to wear of the seal member 2 formed on the heat seal roll main body 1 or the like. There is a problem in that the parts themselves have to be replaced, and the replacement work is difficult and the cost of replacement parts is high.

【００１３】そこで本発明は、特に横シール機構におい
て、シール部材間のクリアランスをほぼ一定に保ちつ
つ、製作が容易で部品の交換作業を簡便に行うことので
きるヒートシール装置を提供することを目的とする。Therefore, it is an object of the present invention to provide a heat seal device, particularly in a horizontal seal mechanism, which can be manufactured easily and can easily replace parts while keeping the clearance between the seal members substantially constant. And

【００１４】[0014]

【課題を解決するための手段】本発明は前記目的を達成
するため、平行に配置され相互に逆回転駆動する一対の
横ヒートシールロール本体と、これら一対の横ヒートシ
ールロール本体にそれぞれ設けられ相互の外周面間に筒
状に成形されたフィルムを横切る方向に挟持状態で熱シ
ールするシール部材と、前記一対の横ヒートシールロー
ル本体にそれぞれ少なくとも二箇所相互に対応して設け
られ相互の外周面が当接可能に配設された軸間基準フラ
ンジとを備え、前記ヒートシールロール本体の長手方向
に沿い、前記シール部材の中央部に前記フィルムを加圧
・加熱するためのヒートシール外周面を設けるととも
に、このヒートシール外周面の両端部には、相互に突き
合わせた状態にて前記フィルムの厚み分より若干小さな
寸法に突設するクリアランス設定突当部を設け、このク
リアランス設定突当部の外径寸法を前記軸間基準フラン
ジの外径寸法と同等もしくは若干径大に設定したことを
特徴とするヒートシール装置である。In order to achieve the above-mentioned object, the present invention is provided with a pair of horizontal heat seal roll main bodies which are arranged in parallel and are driven to rotate in opposite directions to each other, and the pair of horizontal heat seal roll main bodies. Sealing members for heat-sealing while sandwiching a film formed into a tubular shape between mutual outer peripheral surfaces in a sandwiched state, and at least two locations corresponding to each other on the pair of horizontal heat-sealing roll bodies, respectively A heat seal outer peripheral surface for pressurizing and heating the film in the center of the seal member along the longitudinal direction of the heat seal roll main body, with an inter-axis reference flange disposed so that the surfaces can come into contact with each other. In addition to the above, the both ends of the outer peripheral surface of the heat seal are provided so as to project in a size slightly smaller than the thickness of the film in a state of being butted against each other. The lance setting abutting portions provided a heat-sealing device, characterized in the outer diameter that is set to the outer diameter equal to or slightly larger diameter of the reference flange between the axis of the clearance setting abutting portions.

【００１５】[0015]

【作用】一対の横ヒートシールロール本体にそれぞれ取
り付けられたシール部材の外周面部分には、その両端部
にそれぞれ対をなすシール部材同士が突き当て当接され
るクリアランス設定突当部が設けられ、このクリアラン
ス設定突当部の外径寸法を基準として、シール部材の中
央部のヒートシール外周面の外径寸法をフィルムの厚み
分より若干小さな寸法に設定することにより、フィルム
を常に適正に加圧することができ、また横ヒートシール
ロール本体の製造加工とは別にして、シール部材を製造
加工することができるため、切削作業などによる製作も
容易となり、しかもシール部材のみの加熱温度はほぼ一
定に保たれるため、シール部材の外周面部分の外径寸法
を任意に設定することによって所定のクリアランスを保
つことが可能となる。In the outer peripheral surface of the seal member attached to each of the pair of horizontal heat-sealing roll main bodies, clearance setting abutting portions are provided at both ends of the seal member so that the pair of seal members abut against each other. By setting the outer diameter of the clearance setting abutting portion as a reference, the outer diameter of the outer peripheral surface of the heat seal at the center of the seal member is set to a dimension slightly smaller than the thickness of the film, so that the film is always applied properly. It can be pressed, and since the seal member can be manufactured and processed separately from the manufacturing and processing of the main body of the horizontal heat seal roll, it can be easily manufactured by cutting work and the heating temperature of only the seal member is almost constant. Therefore, it is possible to maintain a predetermined clearance by arbitrarily setting the outer diameter dimension of the outer peripheral surface portion of the seal member. .

【００１６】[0016]

【実施例】以下本発明の実施例を添付図面に基づいて説
明するが、本発明の対象とする横ヒートシール機構は、
縦型、横型のいずれの包装機に対しても実施可能であ
り、本実施例では縦型のピロー包装機である充填包装機
に適用したヒートシール装置を例にして詳述する。図１
から図５は本発明の第１実施例を示し、充填包装機の機
台11の側方にはロール状に巻回したフィルム巻反Ｒを交
換可能とする保持枠12が設けられ、この保持枠12に支持
されたフィルム巻反ＲからフィルムＦが引き出し案内さ
れる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below with reference to the accompanying drawings.
The present invention can be applied to both vertical and horizontal packaging machines. In this embodiment, a heat seal device applied to a filling and packaging machine which is a vertical pillow packaging machine will be described in detail as an example. FIG.
5 to 10 show a first embodiment of the present invention, in which a holding frame 12 is provided on the side of the machine base 11 of the filling and packaging machine so that the film winding R wound in a roll shape can be replaced. The film F is pulled out and guided from the film roll R supported by the frame 12.

【００１７】前記機台11の上部にはフィルム弛み防止機
構からなるフィルム案内部13が設けられ、このフィルム
案内部13を通過したフィルムＦがフィルム折返部14へと
導かれるように設けられ、このフィルム折返部14にはフ
ィルムＦの折返し部分を支持して案内する棒状のガイド
杆15が垂下されており、このガイド杆15と併設して充填
機構16に設けられたノズル17が垂下して配列されてお
り、ソースやしょうゆなどの内容物Ｗが充填可能に設け
られている。A film guide portion 13 composed of a film slack preventing mechanism is provided on the machine base 11 so that the film F passing through the film guide portion 13 is guided to the film folding portion 14. A rod-shaped guide rod 15 that supports and guides the folded portion of the film F hangs down on the film folding portion 14, and a nozzle 17 provided in a filling mechanism 16 along with this guide rod 15 hangs down and is arranged. The contents W such as sauce and soy sauce are provided so that they can be filled.

【００１８】また前記フィルム折返部14の下方には、機
台11の前面側に上側から縦シール機構18と横シール機構
19およびカッター機構20が備え付けられ、フィルム巻反
ＲよりフィルムＦを引き出し、フィルム案内部13を介し
てフィルム折返部14に導出し、フィルム折返部14に設け
られたガイド杆15によりフィルムＦを長手方向に沿って
二つ折りし、そのフィルムＦの折返し両端縁を重ね合わ
せた状態にて縦シール機構18の対向する一対の縦ヒート
シールロール本体21に設けられた縦シール部材22により
フィルムＦを縦シールし、この縦シール箇所ＨＳにより
包装フィルムＦを筒状に成形し、この筒状に成形された
フィルムＦを横シール機構19の対向する一対の横ヒート
シールロール本体23に設けられた横シール部材24により
フィルムＦの長手方向に対して横切る方向に横シール
し、この横シール部ＷＳにより包装袋となる底部を形成
し、この有底筒状に形成されたフィルムＦ内に充填機構
16によって内容物Ｗを充填し、さらにフィルムＦの送り
とともに横シール機構19により横シールして小袋Ｐを製
袋した後、小袋Ｐを成形した横シール部ＷＳの中間部を
カッター機構20の作動によって包装された単包の小袋Ｐ
として切断し、この小袋Ｐを搬出機構を介して搬出した
り、あるいは前記カッター機構20の作動を停止状態とし
て連続状態に繋がった小袋Ｐを搬出機構を介して搬出で
きるように構成している。Below the film folding section 14, a vertical seal mechanism 18 and a horizontal seal mechanism are provided on the front side of the machine base 11 from the upper side.
19 and a cutter mechanism 20 are provided, the film F is pulled out from the film roll R, guided to the film folding section 14 via the film guiding section 13, and the film F is lengthened by the guide rod 15 provided in the film folding section 14. The film F is folded in two along the direction, and the film F is vertically folded by the vertical seal members 22 provided in the pair of vertical heat seal roll main bodies 21 of the vertical seal mechanism 18 facing each other in a state where the folded back end edges of the film F are overlapped. After sealing, the packaging film F is formed into a tubular shape by the vertical sealing portion HS, and the tubular film F is provided with a pair of horizontal heat-sealing roll main bodies 23 facing each other in the horizontal sealing mechanism 19. The member 24 laterally seals the film F in a direction transverse to the longitudinal direction, and the lateral seal portion WS forms a bottom portion to be a packaging bag. Filling mechanism in the film F
The contents W are filled with 16 and the lateral sealing mechanism 19 horizontally seals with the feeding of the film F to form the pouch P, and then the cutter mechanism 20 operates the intermediate portion of the lateral seal part WS formed with the pouch P. Single sachet P wrapped by
As a result, the pouch P is cut out and carried out via the carry-out mechanism, or the pouch P connected in a continuous state with the operation of the cutter mechanism 20 stopped can be carried out via the carry-out mechanism.

【００１９】前記横シール機構19は、機台11の前面に軸
受台25を取り付け、これら軸受台25間に一方の横ヒート
シールーロール本体23を回動可能に軸支して、各軸受台
25に上下一対のガイド軸26を固定突設し、ガイド軸26の
先端部に支持板27を固定し、前記ガイド軸26に軸受スラ
イド台28を摺動可能に軸受して、この軸受スライド台28
に他方の横ヒートシールロール本体23を回転可能に軸受
し、一方の横ヒートシールロール本体23と他方の横ヒー
トシールロール本体23とを平行に配設するとともに、一
方の横ヒートシールロール本体23と他方の横ヒートシー
ルロール本体23とにそれぞれ歯合するハスバ歯車29を固
定し、一方のハスバ歯車29に従動用ベベルギヤ30を一体
的に設け、この従動用ベベルギヤ30に機台11内に設けた
図示しない駆動装置により駆動する駆動用ベベルギヤ31
を噛合している。The lateral seal mechanism 19 has a bearing stand 25 mounted on the front surface of the machine base 11, and one lateral heat seal roll main body 23 is rotatably supported between the bearing stands 25 so that each bearing stand is supported.
A pair of upper and lower guide shafts 26 are fixedly projectingly provided on 25, a supporting plate 27 is fixed to the tip end of the guide shaft 26, and a bearing slide base 28 is slidably supported on the guide shaft 26. 28
The other horizontal heat seal roll main body 23 is rotatably supported on the other horizontal heat seal roll main body 23 and the one horizontal heat seal roll main body 23 and the other horizontal heat seal roll main body 23 are arranged in parallel. And the other side heat seal roll main body 23 and the helical gears 29 that mesh with the main body 23 are fixed respectively, the one bevel gear 29 is provided with the driven bevel gear 30 integrally, and the driven bevel gear 30 is provided in the machine base 11. Drive bevel gear 31 driven by a drive device (not shown)
Is meshing.

【００２０】また前記横シール機構19の対をなす横ヒー
トシールロール本体23の内部にはヒータＨが内蔵され、
各横ヒートシールロール本体23の外周部分にはそれぞれ
筒状のフィルムＦを横切る方向に挟持状態で熱シールす
る前述した横シール部材24が取り付けられるとともに、
この横シール部材24の両端部に位置して前記一対の横ヒ
ートシールロール本体23と一体に相互の外周面を当接可
能とする軸間基準フランジ32が突設されており、また支
持板27には他方の横ヒートシールロール本体23を軸支す
る軸受スライド台28をピストン33Ａで一方の横ヒートシ
ールロール本体23側へと弾圧可能なエアシリンダ33が設
けられている。A heater H is built in the horizontal heat-sealing roll main body 23 forming a pair with the horizontal sealing mechanism 19.
At the outer peripheral portion of each horizontal heat-sealing roll main body 23, the above-mentioned horizontal sealing member 24 for heat-sealing in a sandwiching state in the direction crossing the tubular film F is attached,
Inter-axis reference flanges 32, which are located at both ends of the horizontal seal member 24 and which allow the outer peripheral surfaces of the pair of horizontal heat seal roll bodies 23 to come into contact with each other, are provided in a protruding manner. Is provided with an air cylinder 33 capable of elastically pressing a bearing slide base 28, which pivotally supports the other horizontal heat seal roll main body 23, toward the one horizontal heat seal roll main body 23 side by a piston 33A.

【００２１】また一対の横ヒートシールロール本体23に
はそれぞれ対向して等間隔に前記横シール部材24が取付
けられているが、その各横シール部材24の外面には、各
横ヒートシールロール本体23の長手方向に沿い、前記各
横シール部材24の中央部に前記フィルムＦを加圧・加熱
するためのヒートシール外周面24Ａが設けられるととも
に、この各横シール部材24に設けられたヒートシール外
周面24Ａの両端部側に相互に突き合わせた状態にて前記
フィルムＦの厚み分より若干小さな寸法分に突設するク
リアランス設定突当部24Ｂが設けられ、このクリアラン
ス設定突当部24Ｂの外径寸法を前記軸間基準フランジ32
の外径寸法と同等もしくは若干径大に設定して横シール
機構19を構成している。Further, the horizontal seal members 24 are attached to the pair of horizontal heat seal roll bodies 23 at equal intervals so as to face each other. On the outer surface of each horizontal seal member 24, each horizontal heat seal roll body is attached. Along with the longitudinal direction of 23, a heat seal outer peripheral surface 24A for pressurizing and heating the film F is provided at the center of each horizontal seal member 24, and the heat seal provided on each horizontal seal member 24 is provided. A clearance setting abutting portion 24B is provided on both ends of the outer peripheral surface 24A so as to project in a dimension slightly smaller than the thickness of the film F in a state of being abutted against each other, and the outer diameter of the clearance setting abutting portion 24B is provided. The dimensions are based on the above-mentioned inter-axis reference flange 32
The lateral seal mechanism 19 is configured to have an outer diameter dimension equal to or slightly larger than the outer diameter dimension.

【００２２】このように構成してなる第１実施例の横シ
ール機構19によれば、包装機の機台11の軸受台25に固定
された一方の横ヒートシールロール本体23に対してエア
シリンダ33の作動によって所定圧に他方の横ヒートシー
ルロール本体23を押圧制御して各軸間基準フランジ32あ
るいは横ヒートシールロール本体23に取付けた横シール
部材24のクリアランス設定突当部24Ｂの外周面を相互に
当接させることにより、横シール機構19による一対の横
ヒートシールロール本体23の回転に伴い対向される横シ
ール部材24のヒートシール外周面24Ａ同士の間隔は、横
シール部材24のクリアランス設定突当部24Ｂ同士の当接
時において寸法設定されるものであり、これは互いに対
向する横シール部材24のヒートシール外周面24Ａに対し
てクリアランス設定突当部24Ｂの突設した寸法分は、フ
ィルムＦの厚み分より若干狭い間隔に設定してあり、前
記フィルムＦの厚み分からクリアランス設定突当部24Ｂ
の寸法分を差し引いた分が加圧力として作用するもので
あり、すなわちフィルムＦに加圧・加熱する際にフィル
ムＦの外側に設けられるベースフィルムの厚さおよび内
側に設けられる熱溶着に作用する溶融樹脂層の厚みとを
考慮した上で、その溶融樹脂層に十分なる加圧力を与
え、かつ所定の接着強度を満足する厚さ分の距離間隔を
設定することでなされる。According to the lateral seal mechanism 19 of the first embodiment having the above-mentioned structure, the air cylinder is attached to the one lateral heat seal roll main body 23 fixed to the bearing stand 25 of the machine stand 11 of the packaging machine. The outer peripheral surface of the clearance setting abutting portion 24B of the inter-axis reference flange 32 or the horizontal seal member 24 attached to the horizontal heat seal roll main body 23 by pressing the other horizontal heat seal roll main body 23 to a predetermined pressure by the operation of 33. By abutting each other, the distance between the heat seal outer peripheral surfaces 24A of the horizontal seal members 24 opposed to each other as the pair of horizontal heat seal roll bodies 23 is rotated by the horizontal seal mechanism 19 is equal to the clearance of the horizontal seal members 24. The dimensions are set when the setting abutting portions 24B are brought into contact with each other. This is because the clearance setting abutting portion 24B is set against the heat seal outer peripheral surface 24A of the lateral seal member 24 facing each other. Dimension of which projects in and have set slightly narrower interval than the thickness of the film F, the film F clearance setting abutting portion 24B from the thickness of the
Is the pressure acting on the film F, that is, the thickness of the base film provided on the outside of the film F and the heat welding provided on the inside of the film F when the film F is pressed and heated. In consideration of the thickness of the molten resin layer, a sufficient pressing force is applied to the molten resin layer, and the distance between the layers is set so as to satisfy a predetermined adhesive strength.

【００２３】またフィルムＦの材質や厚みが異なる場合
にあっては、一対の横ヒートシールロール本体23に組付
け固定する横シール部材24のヒートシール外周面24Ａと
クリアランス設定突当部24Ｂとの段差寸法を適宜設定す
ることにより、所定の加圧力を得ることができるもので
あり、横ヒートシールロール本体23に対して個別に形成
された横シール部材24のみを交換するだけでフィルム厚
の変更等に対応することができるという効果もある。When the material and the thickness of the film F are different, the heat seal outer peripheral surface 24A and the clearance setting abutting portion 24B of the horizontal seal member 24 assembled and fixed to the pair of horizontal heat seal roll bodies 23 are separated. By appropriately setting the step size, it is possible to obtain a predetermined pressurizing force, and it is possible to change the film thickness only by replacing only the horizontal seal member 24 formed individually for the horizontal heat seal roll main body 23. There is also an effect that it is possible to deal with the above.

【００２４】また一対の横ヒートシールロール本体23の
内部に埋設されたヒーターＨによって横ヒートシールロ
ール本体23が加熱されると同時に、この横ヒートシール
ロール本体23に組み付けられた横シール部材24へと熱伝
導し、この横シール部材24の外面の中央部にヒートシー
ル外周面24Ａを設けるとともに、ヒートシール外周面24
Ａの両端部にクリアランス設定突当部24Ｂを一体に突設
することによって熱伝導による変位量が抑えられるた
め、フィルムＦの加圧・加熱による誤差も抑えることが
でき、安定したヒートシールを行うことができるという
効果がある。Further, the horizontal heat seal roll main body 23 is heated by the heater H embedded in the pair of horizontal heat seal roll main bodies 23, and at the same time, the horizontal heat seal roll 24 is attached to the horizontal heat seal roll main body 23. The heat seal outer peripheral surface 24A is provided at the central portion of the outer surface of the lateral seal member 24, and
By disposing the clearance setting abutting portions 24B integrally on both ends of A, the amount of displacement due to heat conduction is suppressed, so errors due to pressurization and heating of the film F can also be suppressed, and stable heat sealing is performed. The effect is that you can.

【００２５】また横ヒートシールロール本体23の回転に
伴い、対向する横シール部材24がフィルムＦ位置から逸
れた際には、横ヒートシールロール本体23に設けられた
軸間基準フランジ32同士が当接しながら回転移行するた
め、安定的に回転駆動がなされる。When the transverse heat seal roll body 23 is rotated and the opposing transverse seal member 24 is deviated from the film F position, the inter-axis reference flanges 32 provided on the transverse heat seal roll body 23 come into contact with each other. Since the rotation shifts while making contact, the rotation is stably performed.

【００２６】図６は本発明の第２実施例を示すもので、
ここでは横ヒートシールロール本体23に取付け固定され
る横シール部材24において、この横シール部材24の外面
の中央部にフィルムＦを加圧・加熱するためのヒートシ
ール外周面24Ａを設けるとともに、このヒートシール外
周面24Ａの両端部側にクリアランス設定突当部24Ｂを設
け、かつこのクリアランス設定突当部24Ｂと前記ヒート
シール外周面24Ａとの境界部分に逃げ溝24Ｃを設けて横
シール部材24を構成している。FIG. 6 shows a second embodiment of the present invention.
Here, in the horizontal seal member 24 mounted and fixed to the horizontal heat seal roll main body 23, a heat seal outer peripheral surface 24A for pressurizing and heating the film F is provided at the center of the outer surface of the horizontal seal member 24, and A clearance setting abutting portion 24B is provided on both end sides of the heat seal outer peripheral surface 24A, and an escape groove 24C is provided at a boundary portion between the clearance setting abutting portion 24B and the heat seal outer peripheral surface 24A to form the lateral seal member 24. I am configuring.

【００２７】上記構成からなる横シール部材24は、たと
えば逃げ溝24Ｃ箇所を切削加工等によって形成してお
き、その逃げ溝24Ｃ箇所を境にしてヒートシール外周面
24Ａおよびクリアランス設定突当部24Ｂの後加工を行う
ことにより、簡便にして平坦的なヒートシール外周面24
Ａとクリアランス設定突当部24Ｂの仕上げ加工を行うこ
とができ製作上有益である。In the lateral seal member 24 having the above-mentioned structure, for example, the relief groove 24C is formed by cutting or the like, and the heat seal outer peripheral surface is formed with the relief groove 24C as a boundary.
By performing post-processing of 24A and clearance setting abutment part 24B, the heat seal outer peripheral surface 24 which is simple and flat
A and clearance setting abutment portion 24B can be finished, which is useful in manufacturing.

【００２８】なお、この実施例では、ヒートシール外周
面24Ａとして平坦シール面を形成した例を示している
が、ヒートシール外周面24Ａの表面加工としては、平坦
シール面の他に格子状凹凸シール面あるいはフィルムＦ
の溶融樹脂溜り部としての溝状シール面など適宜な加工
を施してもよい。In this embodiment, a flat seal surface is formed as the heat seal outer peripheral surface 24A. However, as the surface treatment of the heat seal outer peripheral surface 24A, in addition to the flat seal surface, a grid-like uneven seal is used. Surface or film F
Appropriate processing such as a groove-shaped sealing surface as the molten resin reservoir may be performed.

【００２９】図８および図９は本発明の第３実施例を示
すもので、一対の横ヒートシールロール本体23に取付け
固定される横シール部材24において、前述した実施例と
同様に横シール部24の外面の中央部にヒートシール外周
面24Ａが設けられ、このヒートシール外周面24Ａの両端
部側にクリアランス設定突当部24Ｂが設けられており、
前記クリアランス設定突当部24Ｂには、前記ヒートシー
ル外周面の回転方向下流側の端縁位置に対し横ヒートシ
ールロール本体23の回転方向の下流側に向けて延長する
突当延長部24Ｄが一体に設けられている。なお、24Ｃは
クリアランス設定突当部24Ｂとヒートシール外周面24Ａ
との境界部分に設けられた逃げ溝である。FIG. 8 and FIG. 9 show a third embodiment of the present invention. In the horizontal seal member 24 attached and fixed to the pair of horizontal heat-sealing roll main bodies 23, the horizontal seal portions are the same as those in the above-mentioned embodiments. A heat seal outer peripheral surface 24A is provided at the center of the outer surface of 24, and clearance setting abutting portions 24B are provided on both end sides of the heat seal outer peripheral surface 24A.
The clearance setting abutment portion 24B is integrally provided with an abutment extension portion 24D extending toward the downstream side in the rotational direction of the lateral heat seal roll main body 23 with respect to the edge position on the downstream side in the rotational direction of the heat seal outer peripheral surface. It is provided in. 24C is a clearance setting abutting portion 24B and a heat seal outer peripheral surface 24A.
It is an escape groove provided at the boundary between and.

【００３０】上記構成からなる横シール機構19は、一対
の横ヒートシールロール本体23に取付け固定されたそれ
ぞれ対向する横シール部材24のヒートシール外周面24Ａ
によってフィルムＦを加圧・加熱してフィルムＦの横シ
ール部ＷＳを施すに際し、横シール部ＷＳの終了側端縁
部分にてヒートシール外周面24Ａが回転移行しつつ離れ
る際に前記クリアランス設定突当部24Ｂからさらに一体
に延長した突当延長部24Ｄによって対をなす横ヒートシ
ールロール本体23の間隔を一定に保ちつつ回転移行する
ため、フィルムＦへの食い込みを防ぎつつヒートシール
外周面24Ａの回転方向下流側端縁がフィルムＦから離脱
することになり、これによりフィルムＦへの加圧力を部
分的に高めることなく安定した横シール部ＷＳを施すこ
とができるという効果がある。The horizontal seal mechanism 19 having the above-mentioned structure is provided with a pair of horizontal heat seal roll bodies 23. The heat seal outer peripheral surfaces 24A of the opposed horizontal seal members 24 are fixed to each other.
When the film F is pressed and heated by the horizontal seal portion WS of the film F, the clearance setting protrusion is generated when the heat seal outer peripheral surface 24A moves away from the end edge of the horizontal seal portion WS while rotating. Since the horizontal heat-sealing roll main body 23 forming a pair is rotated and transferred by the abutting extension 24D which is further integrally extended from the current portion 24B while keeping a constant distance, the heat-sealing outer peripheral surface 24A of the heat-sealing outer peripheral surface 24A is prevented. The downstream side edge in the rotation direction is separated from the film F, which has the effect of providing a stable lateral seal portion WS without partially increasing the pressure applied to the film F.

【００３１】[0031]

【発明の効果】本発明によれば、平行に配置され相互に
逆回転駆動する一対の横ヒートシールロール本体と、こ
れら一対の横ヒートシールロール本体にそれぞれ設けら
れ相互の外周面間に筒状に成形されたフィルムを横切る
方向に挟持状態で熱シールするシール部材と、前記一対
の横ヒートシールロール本体にそれぞれ少なくとも二箇
所相互に対応して設けられ相互の外周面が当接可能に配
設された軸間基準フランジとを備え、前記ヒートシール
ロール本体の長手方向に沿い、前記シール部材の中央部
に前記フィルムを加圧・加熱するためのヒートシール外
周面を設けるとともに、このヒートシール外周面の両端
部には、相互に突き合わせた状態にて前記フィルムの厚
み分より若干小さな寸法に突設するクリアランス設定突
当部を設け、このクリアランス設定突当部の外径寸法を
前記軸間基準フランジの外径寸法と同等もしくは若干径
大に設定してヒートシール機構を構成することにより、
前記横ヒートシールロール本体が加熱されるとこの横ヒ
ートシールロール本体に組付け固定された前記シール部
材へと熱伝導し、この際シール部材にはその中央部に前
記ヒートシール外周面と両端部に前記クリアランス設定
突当部が一体に設けられているため、熱伝導による変位
量が抑えられるとともに、対をなすクリアランス設定突
当部の突き当て位置を基準として対向する前記ヒートシ
ール外周面の隙間寸法によってフィルムの厚み分に対し
て所定の押圧力が得られるように設定できるものであ
り、安定したヒートシールを行うことができるという効
果がある。According to the present invention, a pair of horizontal heat-sealing roll main bodies which are arranged in parallel and driven to rotate in opposite directions to each other, and a tubular shape between the outer peripheral surfaces of the pair of horizontal heat-sealing roll main bodies are provided. A seal member for heat-sealing the film formed in the state of being sandwiched in a direction across the film, and at least two locations corresponding to each of the pair of horizontal heat-sealing roll bodies are provided so as to be able to contact each other's outer peripheral surfaces. And a heat seal outer peripheral surface for pressurizing and heating the film in the central portion of the seal member along the longitudinal direction of the heat seal roll main body. At both end portions of the surface, clearance setting abutting portions are provided which are abutted against each other and have a size slightly smaller than the thickness of the film. By configuring the heat sealing mechanism clearance abutting portion outer diameter dimension set by setting the outer diameter equal to or slightly larger diameter of the reference flanges between the shaft,
When the horizontal heat-sealing roll body is heated, it conducts heat to the sealing member assembled and fixed to the horizontal heat-sealing roll body. Since the clearance setting abutting portion is integrally provided in the heat seal outer peripheral surface, the displacement amount due to heat conduction is suppressed, and the gap between the heat seal outer peripheral surfaces facing each other with the abutting position of the pair of clearance setting abutting portions as a reference. The size can be set so that a predetermined pressing force can be obtained for the thickness of the film, and there is an effect that stable heat sealing can be performed.

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

【図１】本発明の第１実施例を示す充填包装機の全体構
成図である。FIG. 1 is an overall configuration diagram of a filling and packaging machine showing a first embodiment of the present invention.

【図２】同上実施例の横シール機構の構成を示す部分断
面図である。FIG. 2 is a partial cross-sectional view showing the configuration of a horizontal seal mechanism of the above embodiment.

【図３】同上実施例の横シール機構の要部を示す分解斜
視図である。FIG. 3 is an exploded perspective view showing a main part of the horizontal sealing mechanism of the above embodiment.

【図４】同上実施例の横シール機構を示す部分横断面図
である。FIG. 4 is a partial horizontal cross-sectional view showing a horizontal sealing mechanism of the above embodiment.

【図５】同上実施例のフィルムのヒートシール状態を示
す概要図である。FIG. 5 is a schematic view showing a heat-sealed state of the film of the above-mentioned Example.

【図６】本発明の第２実施例を示す横シール部材の斜視
図である。FIG. 6 is a perspective view of a horizontal seal member showing a second embodiment of the present invention.

【図７】本発明の第３実施例を示す横シール部材の斜視
図である。FIG. 7 is a perspective view of a horizontal seal member showing a third embodiment of the present invention.

【図８】同上実施例の組付状態を示した横シール機構の
要部の横断面図である。FIG. 8 is a lateral cross-sectional view of a main part of the horizontal sealing mechanism showing the assembled state of the above embodiment.

【図９】従来装置の横シール機構を示す要部の斜視図で
ある。FIG. 9 is a perspective view of a main part showing a horizontal sealing mechanism of a conventional device.

【図10】同上従来装置の要部を示す断面図である。FIG. 10 is a cross-sectional view showing a main part of the same conventional device.

【符号の説明】[Explanation of symbols]

19 横シール機構 23 横ヒートシールロール本体 24 横シール部材 24Ａ ヒートシール外周面 24Ｂ クリアランス設定突当部 24Ｃ 逃げ溝 24Ｄ 突当延長部 32 軸間基準フランジ Ｆ フィルム ＷＳ 横シール部 Ｗ 内容物 Ｐ 小袋 19 Horizontal seal mechanism 23 Horizontal heat seal roll body 24 Horizontal seal member 24A Heat seal outer peripheral surface 24B Clearance setting abutment part 24C Escape groove 24D Abutment extension part 32 Inter-axis reference flange F Film WS Horizontal seal part W Contents P Small bag

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 平行に配置され相互に逆回転駆動する一
対の横ヒートシールロール本体と、これら一対の横ヒー
トシールロール本体にそれぞれ設けられ相互の外周面間
に筒状に成形されたフィルムを横切る方向に挟持状態で
熱シールするシール部材と、前記一対の横ヒートシール
ロール本体にそれぞれ少なくとも二箇所相互に対応して
設けられ相互の外周面が当接可能に配設された軸間基準
フランジとを備え、前記ヒートシールロール本体の長手
方向に沿い、前記シール部材の中央部に前記フィルムを
加圧・加熱するためのヒートシール外周面を設けるとと
もに、このヒートシール外周面の両端部には、相互に突
き合わせた状態にて前記フィルムの厚み分より若干小さ
な寸法に突設するクリアランス設定突当部を設け、この
クリアランス設定突当部の外径寸法を前記軸間基準フラ
ンジの外径寸法と同等もしくは若干径大に設定したこと
を特徴とするヒートシール装置。1. A pair of horizontal heat seal roll main bodies which are arranged in parallel and driven to rotate in opposite directions to each other, and a film formed in a tubular shape between the outer peripheral surfaces of the pair of horizontal heat seal roll main bodies. A seal member for heat-sealing in a state of being sandwiched in a transverse direction, and an inter-axis reference flange provided in each of the pair of horizontal heat-sealing roll main bodies in correspondence with each other at least at two locations so that their outer peripheral surfaces can contact each other. And along the longitudinal direction of the heat seal roll body, with the heat seal outer peripheral surface for pressurizing and heating the film in the central portion of the seal member, at both ends of the heat seal outer peripheral surface. , A clearance setting abutting portion is provided which protrudes in a size slightly smaller than the thickness of the film in a state of being butted against each other. A heat seal device, wherein the outer diameter dimension of this portion is set to be equal to or slightly larger than the outer diameter dimension of the inter-shaft reference flange. 【請求項２】 前記シール部材の前記クリアランス設定
突当部と前記ヒートシール外周面との境界部分に逃げ溝
を設けたことを特徴とする請求項１に記載のヒートシー
ル装置。2. The heat seal device according to claim 1, wherein an escape groove is provided at a boundary portion between the clearance setting abutting portion of the seal member and the outer peripheral surface of the heat seal. 【請求項３】 前記シール部材の前記クリアランス設定
突当部には、前記横ヒートシールロール本体の回転方向
の下流側に向けて延長した突当延長部を一体に設けたこ
とを特徴とする請求項１または請求項２に記載のヒート
シール装置。3. The clearance setting abutment portion of the seal member is integrally provided with an abutment extension portion extending toward the downstream side in the rotational direction of the horizontal heat seal roll body. The heat seal device according to claim 1 or 2.
JP07129458A 1995-04-28 1995-04-28 Heat sealing equipment Expired - Lifetime JP3084701B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP07129458A JP3084701B2 (en) 1995-04-28 1995-04-28 Heat sealing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP07129458A JP3084701B2 (en) 1995-04-28 1995-04-28 Heat sealing equipment

Publications (2)

Publication Number Publication Date
JPH08301237A true JPH08301237A (en) 1996-11-19
JP3084701B2 JP3084701B2 (en) 2000-09-04

Family

ID=15009995

Family Applications (1)

Application Number Title Priority Date Filing Date
JP07129458A Expired - Lifetime JP3084701B2 (en) 1995-04-28 1995-04-28 Heat sealing equipment

Country Status (1)

Country Link
JP (1) JP3084701B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008137271A (en) * 2006-12-01 2008-06-19 Kao Corp Heat sealing apparatus and method for manufacturing seal-processed article
JP2009132459A (en) * 2009-03-16 2009-06-18 Fujimori Kogyo Co Ltd Heat sealing device, heat sealing method, and bag making and filling apparatus having heat sealing device
JP2014156250A (en) * 2013-02-14 2014-08-28 Sanko Kikai Kk Three-way seal multi-row automatic packing machine
US10839501B2 (en) 2017-02-22 2020-11-17 Yushin Co., Ltd. System for checking package body with image
JP2020201098A (en) * 2019-06-07 2020-12-17 大成ラミック株式会社 Tomographic observation kit
CN112938041A (en) * 2021-03-16 2021-06-11 陈新宇 Adjustable sealing mechanism of advertisement design packaging machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008137271A (en) * 2006-12-01 2008-06-19 Kao Corp Heat sealing apparatus and method for manufacturing seal-processed article
JP2009132459A (en) * 2009-03-16 2009-06-18 Fujimori Kogyo Co Ltd Heat sealing device, heat sealing method, and bag making and filling apparatus having heat sealing device
JP2014156250A (en) * 2013-02-14 2014-08-28 Sanko Kikai Kk Three-way seal multi-row automatic packing machine
US10839501B2 (en) 2017-02-22 2020-11-17 Yushin Co., Ltd. System for checking package body with image
JP2020201098A (en) * 2019-06-07 2020-12-17 大成ラミック株式会社 Tomographic observation kit
CN112938041A (en) * 2021-03-16 2021-06-11 陈新宇 Adjustable sealing mechanism of advertisement design packaging machine

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