JPH01182223A - Automatic sealing method - Google Patents

Automatic sealing method

Info

Publication number
JPH01182223A
JPH01182223A JP32983287A JP32983287A JPH01182223A JP H01182223 A JPH01182223 A JP H01182223A JP 32983287 A JP32983287 A JP 32983287A JP 32983287 A JP32983287 A JP 32983287A JP H01182223 A JPH01182223 A JP H01182223A
Authority
JP
Japan
Prior art keywords
film
speed
cylindrical film
sealer
end sealer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP32983287A
Other languages
Japanese (ja)
Inventor
Masaru Yamamoto
勝 山本
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.)
Omori Machinery Co Ltd
Original Assignee
Omori Machinery 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 Omori Machinery Co Ltd filed Critical Omori Machinery Co Ltd
Priority to JP32983287A priority Critical patent/JPH01182223A/en
Priority to GB8815934A priority patent/GB2214128A/en
Priority to DE19883822915 priority patent/DE3822915A1/en
Publication of JPH01182223A publication Critical patent/JPH01182223A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—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
    • B29C66/05—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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/133—Fin-type joints, the parts to be joined being flexible
    • 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
    • B29C66/80—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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/934—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed
    • B29C66/93431—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed the speed being kept constant over time
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/934—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed
    • B29C66/93441—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed the speed being non-constant over time
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/934—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed
    • B29C66/93451—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed by controlling or regulating the rotational speed, i.e. the speed of revolution
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/939—Measuring or controlling the joining process by measuring or controlling the speed characterised by specific speed values or ranges
    • B29C66/9392—Measuring or controlling the joining process by measuring or controlling the speed characterised by specific speed values or ranges in explicit relation to another variable, e.g. speed diagrams
    • 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
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/30—Electrical means
    • B29C65/305—Electrical means involving the use of cartridge heaters

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Package Closures (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)

Abstract

PURPOSE:To permit film to be sealed in the most appropriate condition, even if the sealing space is changed due to the deformation of a commodity being packaged, by nearly equalizing the feeding speed of a continuously fed film and moving speed of a sealing device for sealing said film at a predetermined location, at least when they are in contact with each other. CONSTITUTION:A control means 40 operates a first motor 30 for driving a feed roller 9 at a nearly speed and a second motor 35 for driving an end sealer 5 at an increased and decreased speed at predetermined intervals. When the end sealer 5 and a cylindrical film 7' are out of contact, the control means makes the first motor operate at a constantly high (or low) speed and, when the end seal operation is being performed with the end sealer 5 in contact with the cylindrical film 7', decreases (or increases) the rotation speed of the first motor 35 so as to nearly equalize the moving speed of the end of the end sealer 5 and the feeding speed of the cylindrical film 7'.

Description

【発明の詳細な説明】 （産業上の利用分野） この発明は自動シール方法に関するもので、より具体的
には、フィルムをその進行方向横方向に所定間隔毎に自
動的にシールを行う方法の改良に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) This invention relates to an automatic sealing method, and more specifically, a method for automatically sealing a film at predetermined intervals in the lateral direction of its traveling direction. Regarding improvements.

（従来の技術） 一般に被包装物を自動包装する場合には、第１図に示す
ような自動包装装置を用いて行っている。(Prior Art) Generally, when objects to be packaged are automatically packaged, an automatic packaging device as shown in FIG. 1 is used.

すなわち、被包装物１を所定間隔毎に搬送するフィンガ
ー２を備えた搬送手段３と、この搬送手段３の次段に配
設されたエンドシーラ５とを有し、搬送手段３の上方に
は帯状のフィルム７を捲回した原反フィルム８が配設さ
れ、帯状のフィルム７は複数のローラ１０を介して搬送
手段３上に導かれ、搬送手段３の中間地点に配置された
製袋器１１にて筒状に形成されて筒状フィルム７′とな
り、この筒状フィルム７′内に被包装物１が順次供給さ
れるようになっている。さらに、搬送手段３は被包装物
１のみ搬送する第１の搬送装置１５と、筒状フィルム７
′内に被包装物１を収納した状態で搬送する第２の搬送
装置１６とから構成されている。That is, it has a conveyance means 3 equipped with fingers 2 for conveying the objects 1 to be packaged at predetermined intervals, and an end sealer 5 disposed at the next stage of this conveyance means 3. A raw film 8 in which a strip-shaped film 7 is wound is disposed, and the strip-shaped film 7 is guided onto the conveying means 3 via a plurality of rollers 10, and a bag making machine is disposed at an intermediate point of the conveying means 3. 11 is formed into a cylindrical shape to form a cylindrical film 7', and the objects 1 to be packaged are sequentially supplied into this cylindrical film 7'. Further, the conveying means 3 includes a first conveying device 15 that conveys only the article to be packaged 1, and a cylindrical film 7.
1, and a second conveying device 16 for conveying the packaged article 1 stored therein.

そして、この自動包装装置は、形状の異なる物　。This automatic packaging equipment has different shapes.

品にも対応して自動包装ができるようになっており、包
装物品の形状にてその都度筒状フィルム７′のカット寸
法が異なる。従って、筒状フィルム７′が一定速度で移
動し所定のカット寸法だけ移動する間にエンドシーラ５
が１回転するようになっている。Automatic packaging is possible depending on the product, and the cut dimensions of the cylindrical film 7' vary depending on the shape of the packaged product. Therefore, while the cylindrical film 7' moves at a constant speed and moves by a predetermined cut dimension, the end sealer 5
rotates once.

（発明が解決しようとする問題点） しかしながら、上記した従来の装置によれば、カット寸
法とエンドシーラ５の一回転に要する移動距離とが異な
るため、エンドシーラ５の速度と筒状フィルム７′との
速度が必ずしも等速度にはならず、エンドシーラ５と筒
状フィルム７′　とが当接するあいだでは両者間に速度
差が生じる。すると、筒状フィルム７′自体が有する移
送速度と、エンドシーラ５が筒状フィルム７′を挟持す
る周速度に差が出てしまい、エンドシーラ５の周速度が
筒状フィルム７の移送速度より遅いと筒状フィルム７′
がたるむと同時に被包装物もエンドシーラ５に接触して
綺麗にシール・包装することができないと言う問題を生
じる。一方、逆にエンドシーラ５の周速度が速いとエン
ドシーラ５が筒状フィルム７′表面を引張り、このため
に筒状フィルムが脈動してしまい、確実にシールできな
いなどの問題を生じる。(Problems to be Solved by the Invention) However, according to the above-described conventional apparatus, since the cut size and the moving distance required for one rotation of the end sealer 5 are different, the speed of the end sealer 5 and the cylindrical film 7' are different. The speeds of the end sealer 5 and the cylindrical film 7' are not necessarily constant, and a speed difference occurs between the end sealer 5 and the cylindrical film 7' while they are in contact with each other. Then, there is a difference between the transfer speed of the cylindrical film 7' itself and the circumferential speed at which the end sealer 5 clamps the cylindrical film 7', and the circumferential speed of the end sealer 5 is faster than the transfer speed of the cylindrical film 7. Slow and cylindrical film 7'
At the same time as the end sealer 5 sag, the object to be packaged also comes into contact with the end sealer 5, causing a problem that it is not possible to seal and package the end sealer neatly. On the other hand, if the circumferential speed of the end sealer 5 is high, the end sealer 5 will pull the surface of the cylindrical film 7', causing the cylindrical film to pulsate, resulting in problems such as failure to securely seal.

この問題を解決する手段として、エンドシーラ５が所定
カット寸法間にシール時以外にその速度を増減速するこ
とにより速度を合すことが考えられる。そして、装置の
安定駆動の要請を加味し、例えば正弦波のような連続し
て脈動する波形のように速度を調整し、その最高速度付
近、或いは最低速度付近と筒状フィルム７′の速度を略
等しくすることも考えられる。As a means to solve this problem, it is conceivable that the end sealer 5 adjusts its speed between predetermined cut dimensions by increasing or decreasing its speed at times other than sealing. Then, taking into consideration the requirement for stable drive of the device, the speed is adjusted to have a continuously pulsating waveform such as a sine wave, and the speed of the cylindrical film 7' is adjusted to around the maximum speed or around the minimum speed. It is also possible to make them substantially equal.

しかし、エンドシーラ５には所定の幅があり、上記のよ
うな解決策をとった場合でもエンドシーラ５と筒状フィ
ルム７′とが接触している間（ある一定の時間の幅があ
る）の内、両者の速度が一致するのは１点（最高（低）
速度と筒状フィルムの速度を同期させた場合）或いは多
くても２点となり、はんの瞬間的に同期するに過ぎず、
上記した従来の問題点を充分に解決することはできない
。However, the end sealer 5 has a predetermined width, and even when the above solution is taken, the end sealer 5 and the cylindrical film 7' are in contact with each other (for a certain period of time). Among them, the speed of both matches is 1 point (highest (low)
If the speed and the speed of the cylindrical film are synchronized), there will be at most two points, and the film will only be synchronized momentarily.
The above-mentioned conventional problems cannot be satisfactorily solved.

この発明は上記した問題点に鑑みてなされたもので、そ
の目的とするところは、たとえ被包装物の形状が変化し
てフィルムの進行方向横方向に所定間隔毎でシールを行
うシール間隔が変化しても、最適な状態でそのフィルム
にシールを施すことのできる自動シール方法を提供する
にある。This invention was made in view of the above-mentioned problems, and its purpose is that even if the shape of the packaged object changes, the seal interval at which seals are performed at predetermined intervals in the transverse direction of the traveling direction of the film changes. To provide an automatic sealing method capable of sealing a film in an optimal state even when the film is exposed.

（問題点を解決するための手段） 上記目的を達成するため、本発明に係る自動シール方法
では、連続して移送されるフィルムを横切るようにして
配されたシール手段にて、該フィルムの進行方向横方向
を所定間隔毎にシールを施す自動シール方法において、
少なくとも該シール手段と該フィルムとが接触している
間だけ該シール手段と該フィルムの移動速度を略同一に
するようにした。(Means for Solving the Problems) In order to achieve the above object, in the automatic sealing method according to the present invention, a sealing means arranged to traverse the continuously transported film is used to In an automatic sealing method that applies seals at predetermined intervals in the horizontal direction,
The moving speeds of the sealing means and the film are made substantially the same at least while the sealing means and the film are in contact with each other.

（実　施　例） 以下、本発明に係る好適な実施例について添附図面を参
照にして説明する。(Embodiments) Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

第１図、第２図は、本発明の方法を実施するための装置
の一例を示している。本実施例の装置は、基本的に従来
の物と同様であるので、相当する箇所には同一の符合を
付して説明する。1 and 2 show an example of an apparatus for carrying out the method of the invention. Since the device of this embodiment is basically the same as the conventional device, corresponding parts will be described with the same reference numerals.

同図に示すように、被包装物１を所定間隔毎に搬送する
搬送手段３の進行方向前方にシール手段たるエンドシー
ラ５が配設され、また、搬送手段３の上方には帯状フィ
ルム７を捲回した原反フィルム８が配設されている。そ
して、この帯状フィルム７は引き出しローラ９並びに複
数のテンションローラ１０を介して搬送手段３の中間地
点に配設された製袋器１１にて筒状フィルムに形成され
て筒状フィルム７′となり、この筒状フィルム７′内に
被包装物１を順次供給収納した状態でさらに搬送するよ
うになっている。As shown in the figure, an end sealer 5 serving as a sealing means is disposed in front of the conveying means 3 in the traveling direction that conveys the packaged items 1 at predetermined intervals, and a strip-shaped film 7 is disposed above the conveying means 3. A rolled original film 8 is arranged. Then, this strip-shaped film 7 is formed into a cylindrical film in a bag-making machine 11 disposed at an intermediate point of the conveyance means 3 via a pull-out roller 9 and a plurality of tension rollers 10, and becomes a cylindrical film 7'. The objects 1 to be packaged are sequentially supplied and stored in this cylindrical film 7' and are further conveyed.

また、搬送手段３は、被包装物１のみを搬送する第１の
搬送装置１５と、その第１の搬送装置１５の搬出側に近
接配置され、筒状フィルム７′とともに被包装物１を搬
送する第２の搬送装置１６とから構成されている。そし
て、第１の搬送装置１５は、一対のスプロケット１７．
１７’　に架設されたエンドレスチェーン１８と、この
エンドレスチェーン１８の所定間隔毎に配設されたフィ
ンガー２とから構成されている。そしてこのフィンガー
２の間隔は、異なる寸法の被包装物に対しても対応でき
るようにするため、エンドシーラ５にて筒状フィルム７
′をカットする寸法より長く設定されている。Further, the conveying means 3 is disposed close to a first conveying device 15 that conveys only the object to be packaged 1 and the discharge side of the first conveying device 15, and conveys the object to be packaged 1 together with the cylindrical film 7'. and a second conveyance device 16 that carries out the following operations. The first conveying device 15 includes a pair of sprockets 17 .
It is composed of an endless chain 18 which is installed on the chain 17', and fingers 2 which are arranged at predetermined intervals on the endless chain 18. The spacing between the fingers 2 is determined by using the end sealer 5 to make the cylindrical film 7
′ is set longer than the cut length.

また、第２の搬送装置１６は、その搬入側近傍の下方に
一対の回転ローラ２２，２２が当接しあう状態で配置さ
れており、この回転ローラ２２゜２２が筒状フィルム７
′の重合端部７′　ａを両側から挟持しながら回転する
ことにより筒状フィルム７′を前進移送できるようにな
っている。さらに回転ローラ２２．２２のすなわち筒状
フィルム７′の進行方向前方には筒状フィルム７′の重
合端部７　／　ａをシールするためのセンターシーラー
２６．２６が配設されている。Further, the second conveying device 16 has a pair of rotating rollers 22, 22 disposed below near the carry-in side so as to be in contact with each other.
The cylindrical film 7' can be transported forward by rotating while holding the overlapped end 7'a of the film 7' from both sides. Furthermore, a center sealer 26.26 for sealing the overlapping end portion 7/a of the tubular film 7' is disposed in front of the rotating roller 22.22, that is, in front of the tubular film 7' in the traveling direction.

さらに、エンドシーラ５は、筒状フィルム７′の上下に
配された回転軸２７．２７’　と、その回転軸２７．２
７’　にそれぞれ固着されたトツブシーラ部２８．２８
とから大略構成されており、そのトップシーラ一部２８
にはヒーター並びにカッター手段が配設されており、エ
ンドシールを施しながらカットできるようになっている
。そして、両回転軸２７．２７’はそれぞれに軸着され
たギヤー２８．２８にて噛合され、同期して回転するよ
うになっている。Furthermore, the end sealer 5 has rotating shafts 27.27' disposed above and below the cylindrical film 7', and its rotating shaft 27.2.
Totsubu sealer parts 28 and 28 fixed to 7' respectively.
It is roughly composed of 28 parts of the top sealer.
is equipped with a heater and cutter means so that it can be cut while applying an end seal. Both rotating shafts 27 and 27' are meshed with gears 28 and 28 that are respectively attached to the shafts, so that they rotate synchronously.

ここで本発明では、まず、上記した帯状フィルム７を連
続的に引き出す引き出しローラ９に、伝達手段を介して
第１の駆動モータ３０が連携されている。Here, in the present invention, first, the first drive motor 30 is linked via a transmission means to the pull-out roller 9 that continuously pulls out the above-described film strip 7.

また、上記したエンドシーラ５の一方の回転軸２７にも
所定の伝達手段を介して第２の駆動モータ３５が連繋さ
れている。Further, a second drive motor 35 is also connected to one rotating shaft 27 of the end sealer 5 described above via a predetermined transmission means.

さらに、上記した第１〜第２の駆動モータ３０゜３５が
カムなどからなる制御手段４０に連携されており、第２
の駆動モータ３５は、制御手段４０からの信号によりそ
の回転速度が増減速されるようになっている。すなわち
、この制御手段４０は引き出しローラ９を駆動させる第
１の駆動モータ３０を、はぼ等速度で運転させ、エンド
シーラ５を駆動する第２の駆動モータ３５を一定のタイ
ミングで増減速するようになっている。そして、このタ
イミングは第３図に示すようになっている。Furthermore, the first and second drive motors 30 and 35 described above are linked to a control means 40 consisting of a cam, etc.
The rotational speed of the drive motor 35 is increased or decreased by a signal from the control means 40. That is, this control means 40 operates the first drive motor 30 that drives the pull-out roller 9 at a nearly constant speed, and increases or decreases the second drive motor 35 that drives the end sealer 5 at a constant timing. It has become. This timing is shown in FIG.

すなわち、エンドシーラ５が筒状フィルム７′　と当接
してない時は高速（低速）運転をさせ、エンドシーラ５
が筒状フィルム７′　と当接し、エンドシール作業を行
っている間は第１の駆動モータ３５の回転速度を減速（
増速）させてエンドシーラ５の先端部の移動速度と筒状
フィルム７′の移送速度が略同一になるように制御する
ようになっている。That is, when the end sealer 5 is not in contact with the cylindrical film 7', high speed (low speed) operation is performed, and the end sealer 5 is operated at high speed (low speed).
comes into contact with the cylindrical film 7', and the rotational speed of the first drive motor 35 is reduced (
The moving speed of the tip of the end sealer 5 and the transporting speed of the cylindrical film 7' are controlled to be substantially the same.

次に上記した装置に基づいて、本発明に係る方法の一実
施例について説明すると、まず、被包装物１がフィンガ
ー２に押送されて所定間隔毎に搬送され順次筒状フィル
ム７′内に供給される。そして、筒状フィルム７′内に
被包装物１が供給された状態のまま移送される。そして
、進行方向前方に配置されたエンドシーラ５にて所定間
隔毎にエンドシールが施されて包装体４２が製造される
。Next, an embodiment of the method according to the present invention will be described based on the above-mentioned device. First, the object to be packaged 1 is pushed by the fingers 2, conveyed at predetermined intervals, and sequentially fed into the cylindrical film 7'. be done. Then, the article 1 to be packaged is transported inside the cylindrical film 7' while being supplied therein. Then, end seals are applied at predetermined intervals by an end sealer 5 disposed forward in the traveling direction, and the package 42 is manufactured.

このとき、第３図に従って、筒状フィルム７′すなわち
帯状フィルム７は一定速度で原反フィルム８から引き出
されて移送される。一方、エンドシーラ５の上下一対の
トツブシーラ部２８．２８が当接し合って筒状フィルム
７′の所定位置をエンドシールし終わると第２の駆動モ
ータ３５の回転速度が増加し、トップシーラ一部２８の
回転速度も上昇する（■領域）。次いで高速回転（■領
域）を続はトップシーラ一部２８を高速度で回転させ、
上下のトップシーラ一部２８．２８が再び当接し合う付
近まで、すなわち、筒状フィルム７′にエンドシールを
施す所定位置付近までエンドシーラ５が移動してくると
減速する（■領域）。At this time, as shown in FIG. 3, the cylindrical film 7', that is, the strip film 7, is pulled out from the original film 8 at a constant speed and transported. On the other hand, when the pair of upper and lower top sealer parts 28, 28 of the end sealer 5 come into contact with each other and finish sealing a predetermined position of the cylindrical film 7', the rotational speed of the second drive motor 35 increases, and the top sealer part The rotation speed of 28 also increases (region ■). Next, continue the high speed rotation (region ■) by rotating the top sealer part 28 at high speed.
When the end sealer 5 moves to the vicinity where the upper and lower top sealer portions 28, 28 come into contact with each other again, that is, to the vicinity of the predetermined position where the end seal is applied to the cylindrical film 7', the speed is reduced (region ■).

この高速運転領域（■〜■領域）は、筒状フィルム７′
にエンドシールを施す間隔とトップシーラ一部２８が一
回転してその先端部が移動する距離との相違から筒状フ
ィルム７′を所定間隔ごとにエンドシールを施すための
もので、各領域の設定時間は被包装物の寸法（筒状フィ
ルムのカット寸法）エンドシーラ５の回転半径（トップ
シーラー部２８の長さ）等により決定される。そして、
トップシーラ一部２８．２８の先端部同士が当接し始め
るときには、トップシーラ一部２８の先端部の移動速度
と筒状フィルム７′の移送速度とが略同一となっており
、その速度を維持しながら共に移動し、エンドシールを
施す。このとき、両者の移動速度が略同一であるので、
筒状フィルム７′がたるんだり、トップシーラ一部２８
が筒状フィルム７′を引張ったりして脈動移動したりす
ることがなく、確実にエンドシールを施すことができる
（■領域）。そして、完全にエンドシールが施されて１
個の包装体４２が製造されると、ふたたびトップシーラ
一部２８は高速運転に移り、次の筒状フィルム７′のエ
ンドシール作業へ備える。This high-speed operation area (■ to ■ area) is the cylindrical film 7'
This is to apply end seals to the cylindrical film 7' at predetermined intervals due to the difference between the interval at which the end seals are applied to the area and the distance that the tip of the top sealer part 28 moves once. The set time is determined by the dimensions of the packaged object (the cut dimension of the cylindrical film), the rotation radius of the end sealer 5 (the length of the top sealer portion 28), and the like. and,
When the tips of the top sealer parts 28 and 28 start to come into contact with each other, the moving speed of the tips of the top sealer parts 28 and the transport speed of the cylindrical film 7' are approximately the same, and this speed is maintained. While moving together, apply the end seal. At this time, since the moving speeds of both are almost the same,
If the cylindrical film 7' is sagging or the top sealer part 28
The end seal can be reliably applied without pulling the cylindrical film 7' and causing pulsating movement (region ■). Then, the end seal is completely applied and 1
When each package 42 is manufactured, the top sealer portion 28 is again put into high-speed operation in preparation for the end sealing operation of the next cylindrical film 7'.

なお、上記実施例では、被包装物１が比較的短いもの、
すなわち、筒状フィルムのエンドシールを施す間隔がト
ップシーラ一部の一回転に移動する距離より短い場合に
ついて説明したが、本発明は上記実施例に限ることはな
く、例えば、逆に被包装物１が比較的長い場合でも良い
。そしてその場合には、トップシーラ一部２８は筒状フ
ィルム７′の移動速度に比べゆっくりと移動させなけれ
ばならないので、第４図に示すように高速回転側で筒状
フィルム７′の移動速度と同期するように制御すれば良
い。In addition, in the above embodiment, the object to be packaged 1 is relatively short,
That is, the case has been described in which the interval at which the end seals are applied to the cylindrical film is shorter than the distance that the top sealer moves in one rotation, but the present invention is not limited to the above embodiments. 1 may be relatively long. In that case, the top sealer part 28 must be moved slowly compared to the moving speed of the cylindrical film 7', so the moving speed of the cylindrical film 7' is lowered on the high-speed rotation side as shown in FIG. You just need to control it so that it is synchronized with.

また、上記した実施例では、制御手段としてカム等を用
いて速度調整を行うものについて説明だが、電気的、機
械的の種々の手段を用いて制御するようにしても良い。Further, in the above-mentioned embodiments, the speed is adjusted using a cam or the like as a control means, but the control may be performed using various electrical or mechanical means.

さらに、筒状フィルム（帯状フィルム）の移送速度を略
一定速度で移送するとしたが、これは厳密に一定速度と
する必要はなく、帯状フィルムが脈動を生じて筒状フィ
ルム内の被包装物がずれたりするおそれが無い範囲で速
度が変わっても良い。Furthermore, although it is assumed that the cylindrical film (striped film) is transported at a substantially constant speed, it is not necessary to keep it strictly constant; the pulsation of the cylindrical film may cause the packaged object within the cylindrical film to The speed may be changed within a range where there is no risk of deviation.

さらにまた、上記実施例では、エンドシーラ５の回転速
度を略台形状になるように増減速制御を行ったが、本発
明はこれに限ることはなく、例えば第５図に示すように
、略正弦波等の連続して脈動する波形を基本波とし、そ
の基本波の上端或いは後端部を平滑化し、その平滑化し
た箇所の速度と筒状フィルムの移送速度とを同期するよ
うにしても良い。Furthermore, in the above embodiment, the rotational speed of the end sealer 5 was controlled to increase or decrease so that it had a substantially trapezoidal shape, but the present invention is not limited to this, and for example, as shown in FIG. Even if a continuously pulsating waveform such as a sine wave is used as the fundamental wave, the upper end or rear end of the fundamental wave is smoothed, and the speed of the smoothed part and the transport speed of the cylindrical film are synchronized. good.

なおまた、上記した実施例では、１枚の帯状フィルムを
製袋して筒状フィルムにしたものについて説明したが、
例えば、１枚の帯状フィルムを切断して、或いは最初か
ら２枚の帯状フィルムを用い、両帯状フィルムを積重す
るとともに所定箇所にシールを施すといったいわゆる三
方シール、四方シールと称されるものにも利用すること
ができる。Furthermore, in the above-mentioned embodiments, a single strip-shaped film was made into a bag to form a cylindrical film.
For example, a so-called three-sided seal or a four-sided seal is created by cutting one strip of film or using two strips of film from the beginning, stacking both strips of film, and applying seals at predetermined locations. can also be used.

さらにまた、被包装物を同時に収納して密封シールする
包装装置に限ることなく、単に袋体のみを製造する場合
（製袋装置）にも利用することができる。Furthermore, the present invention is not limited to a packaging device that simultaneously stores and hermetically seals items to be packaged, and can also be used to simply manufacture bags (bag making device).

また、シール手段としては上記実施例では回転式のエン
ドシーラについて説明したが、本発明では例えば略矩形
に移動するいわゆるボックスモーション式のシール装置
その他の種々の構成をとることができる。Further, as the sealing means, although a rotary type end sealer has been described in the above embodiment, the present invention can employ various configurations such as a so-called box motion type sealing device that moves in a substantially rectangular shape, for example.

なおまた、本発明でいう横方向にシールとは、略直交方
向に一直線状にシールするのみならず、斜め方向はもち
ろん、第６図に示すように平面略三角形その他のシール
面を形成するものも含まれる広い概念である。Furthermore, the lateral seal as used in the present invention means not only a linear seal in a substantially orthogonal direction, but also an oblique direction, as shown in FIG. It is a broad concept that also includes

（発明の効果） 以上のように本発明に係る方法では、連続して供給され
るフィルムの移送速度と、そのフィルムの所定位置をシ
ールするシール装置の移動速度とを、少なくとも両者が
接触している間は略同一にしているため、フィルムの所
定位置を確実にかつ綺麗にシールすることができる。(Effects of the Invention) As described above, in the method according to the present invention, the transport speed of the continuously supplied film and the movement speed of the sealing device that seals a predetermined position of the film are adjusted so that at least the two are in contact with each other. Since the length of the film is kept substantially the same, the predetermined position of the film can be reliably and neatly sealed.

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

第１図は本発明の方法を実施する装置の一実施例を示す
側面図、第２図はその平面図、第３図はフィンガーとフ
ィルムの移動速度の関係を示すグラフ、第４図、第５図
はそれぞれ変形例を示す第３図に相当するグラフで、第
６図（ａ）（ｂ）はそれぞれエンドシーラのシール面の
形状の変形例を示す図である。 １・・・被包装物　　　　　２・・・フィンガー３・・
・搬送手段　　　　　５・・・エンドシーラフ・・・帯
状フィルム　　　７′・・・筒状フィルム９・・・引き
出しローラ　　１５・・・第１の搬送装置１Ｂ・・・第
２の搬送装置　　３０・・・第１の駆動モータ３５・・
・第２の駆動モータ　４０・・・制御手段第　３　図 一エン１ツーラー回転ＩＬ友 一一一−λルム　兼々動遵しＬ 第５図 一エン１ツーラー日転邊虚− 一−−−フイＩレム　奪争曹カヨ艦Ｊ裏−第６図FIG. 1 is a side view showing an embodiment of the apparatus for carrying out the method of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a graph showing the relationship between the moving speed of the fingers and the film, and FIGS. FIG. 5 is a graph corresponding to FIG. 3 showing a modified example, and FIGS. 6(a) and 6(b) are diagrams showing a modified example of the shape of the sealing surface of the end sealer. 1... Item to be packaged 2... Finger 3...
- Conveying means 5... End seal rough... Band-shaped film 7'... Tubular film 9... Pull-out roller 15... First conveying device 1B... Second conveying device 30...・First drive motor 35...
・Second drive motor 40...Control means No. 3 I-Rem Sergeant Kayo Ship J Back - Figure 6

Claims (1)

【特許請求の範囲】[Claims] 連続して移送されるフィルムを横切るようにして配され
たシール手段にて、該フィルムの進行方向横方向を所定
間隔毎にシールを施す自動シール方法において、少なく
とも該シール手段と該フィルムとが接触している間だけ
該シール手段と該フィルムの移動速度を略同一にするよ
うにしたことを特徴とする自動シール方法。In an automatic sealing method in which sealing means placed across a continuously transported film seals the film at predetermined intervals in the lateral direction of the film, at least the sealing means and the film are in contact with each other. An automatic sealing method characterized in that the moving speeds of the sealing means and the film are made substantially the same only while the sealing means is being sealed.
JP32983287A 1987-12-28 1987-12-28 Automatic sealing method Pending JPH01182223A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP32983287A JPH01182223A (en) 1987-12-28 1987-12-28 Automatic sealing method
GB8815934A GB2214128A (en) 1987-12-28 1988-07-05 An automatic sealing method
DE19883822915 DE3822915A1 (en) 1987-12-28 1988-07-06 AUTOMATIC WELDING PROCESS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32983287A JPH01182223A (en) 1987-12-28 1987-12-28 Automatic sealing method

Publications (1)

Publication Number Publication Date
JPH01182223A true JPH01182223A (en) 1989-07-20

Family

ID=18225728

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32983287A Pending JPH01182223A (en) 1987-12-28 1987-12-28 Automatic sealing method

Country Status (3)

Country Link
JP (1) JPH01182223A (en)
DE (1) DE3822915A1 (en)
GB (1) GB2214128A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003145485A (en) * 2001-08-29 2003-05-20 Zuiko Corp Method and device for manufacturing article
JP2014136597A (en) * 2013-01-16 2014-07-28 Dainippon Printing Co Ltd Sealed bag production method

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4315069C2 (en) * 1993-05-06 1998-07-23 Mesoma Hans Guenter Kauck Gmbh Tubular bag machine
IT1261070B (en) * 1993-07-01 1996-05-08 Cavanna Spa PROCEDURE FOR CHECKING THE OPERATION OF A ROTARY JAW CLOSING UNIT FOR PACKAGING MACHINES.
DE29822122U1 (en) * 1998-12-11 2000-04-20 Vision Verpackungstechnik Gmbh Device for processing continuously moving material
ITMI20022759A1 (en) * 2002-12-24 2004-06-25 Bernardi Alessandro De DEVICE AND PROCEDURE FOR OPERATING ON LAMINAR MATERIAL
DE102008020800B4 (en) * 2008-04-23 2012-10-25 Christel Meurer Closure device for closing or closing and separating a packaging web
DE202008018368U1 (en) 2008-04-23 2013-04-29 Meurer Verpackungssysteme Gmbh Closure device for closing or closing and separating a packaging web

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1704401C2 (en) * 1967-08-18 1975-11-20 Windmoeller & Hoelscher, 4540 Lengerich Machine for the production of open plastic sacks
GB1280629A (en) * 1970-06-19 1972-07-05 Frank John Rowell Production of articles by tube sealing
US3942304A (en) * 1975-03-24 1976-03-09 Hayssen Manufacturing Company Packaging apparatus
EP0003998B1 (en) * 1978-03-09 1982-07-14 Stiegler Gmbh Maschinenfabrik Machine for working a web of material by a welding tool
GB2108042B (en) * 1981-09-15 1985-03-27 Auto Wrappers Carry-through for wrapping machine crimping station
US4663917A (en) * 1984-06-20 1987-05-12 Taylor Alfred A Packaging apparatus
GB2179888B (en) * 1985-09-04 1989-01-11 Grace W R & Co Improvements relating to variable speed form-fill-seal machines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003145485A (en) * 2001-08-29 2003-05-20 Zuiko Corp Method and device for manufacturing article
JP4495393B2 (en) * 2001-08-29 2010-07-07 株式会社瑞光 Manufacturing method of article
JP2014136597A (en) * 2013-01-16 2014-07-28 Dainippon Printing Co Ltd Sealed bag production method

Also Published As

Publication number Publication date
DE3822915A1 (en) 1989-07-06
GB8815934D0 (en) 1988-08-10
GB2214128A (en) 1989-08-31

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