JPH0518701B2 - - Google Patents

Info

Publication number
JPH0518701B2
JPH0518701B2 JP30422987A JP30422987A JPH0518701B2 JP H0518701 B2 JPH0518701 B2 JP H0518701B2 JP 30422987 A JP30422987 A JP 30422987A JP 30422987 A JP30422987 A JP 30422987A JP H0518701 B2 JPH0518701 B2 JP H0518701B2
Authority
JP
Japan
Prior art keywords
bonded
heating
heating element
rear end
polyester film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP30422987A
Other languages
Japanese (ja)
Other versions
JPH01145124A (en
Inventor
Yoshiaki Uchimoto
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP62304229A priority Critical patent/JPH01145124A/en
Publication of JPH01145124A publication Critical patent/JPH01145124A/en
Publication of JPH0518701B2 publication Critical patent/JPH0518701B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—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
    • B29C66/137—Beaded-edge joints or bead seals
    • 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
    • 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
    • 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
    • B29C66/71—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 composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C65/22—Heated wire resistive ribbon, resistive band or resistive strip
    • B29C65/221—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip
    • B29C65/222—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip comprising at least a single heated wire

Landscapes

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

Description

【発明の詳細な説明】 （産業上の利用分野） この発明はポリエステルフイルムの熱接着装置
に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) This invention relates to a thermal bonding device for polyester films.

（従来の技術） 従来ポリエステルフイルム製袋の製作などのた
めにポリエステルフイルムを２枚重ね合わせたも
のの端辺（被接着辺）を熱接着する技術として、
例えば特公昭58−38297号公報「ポリエステルフ
イルムの熱接着法」に見られるように、２枚重ね
合わせたポリエステルフイルム片Ａを挟圧支持す
るための、一定長の挟圧支持板イ，ロを上下に設
けたクランプ装置、挟圧支持板イ，ロの外方に突
出する被接着辺ａに所要の加熱を与えるための、
被接着辺ａに全長に相対して配置する一定温度の
加熱体ハを接近させ、離反させる加熱装置とから
なる熱接着装置がある（第４図ａ、ｂ）。(Prior art) Conventionally, as a technology for thermally bonding the edges (sides to be bonded) of two layers of polyester film stacked together for the production of polyester film bags, etc.
For example, as seen in Japanese Patent Publication No. 58-38297 ``Thermal bonding method of polyester film'', clamping support plates A and B of a certain length are used to clamp and support two stacked polyester film pieces A. Clamping devices installed on the top and bottom, clamping support plates (a) and (b) for applying the required heat to the outwardly protruding sides a to be bonded.
There is a thermal bonding device that includes a heating device that brings a heating body C, which is at a constant temperature and is placed across the entire length of the side to be bonded, close to it and moves it away from it (FIGS. 4a and 4b).

係る装置は、該装置によつて熱接着が可能な最
大限の長さは加熱体ハ（挟圧支持板ｅイ，ロも同
じ）の長さで決定されるが、被接着辺ａが加熱体
ハより短かいときは接近したときに被接着辺ａが
余分に加熱されて大きな熱収縮を生じて歪む問題
があり、また不経済である。 In such a device, the maximum length that can be thermally bonded by the device is determined by the length of the heating body C (the same applies to the clamping support plates E and B), but when the side to be bonded is heated If it is shorter than the body C, there is a problem that the side A to be bonded will be excessively heated when approached, resulting in large thermal contraction and distortion, and it is also uneconomical.

従つて被接着辺ａの長短によりそれに応じた長
さの加熱体ハを選択し交換しなければならない問
題があつた。また加熱体ハが被接着辺ａに接近し
て溶融が始まると加熱体ハは被接着辺ａの溶融に
よる収縮に見合わせて被接着辺ａの間と一定間隔
を保つ作動をしなければならず、この接近作動は
微小距離且つ精度の高いものであるので非常に難
かしい操作を必要とする問題があつた。 Therefore, there is a problem in that depending on the length of the side to be adhered a, a heating element c of a length corresponding to the length must be selected and replaced. Furthermore, when the heating element C approaches the side to be bonded a and melting begins, the heating element C must operate to maintain a constant distance between the sides to be bonded a to compensate for the shrinkage of the side to be bonded a due to melting. Since this approach operation is performed over a minute distance and with high precision, there is a problem in that it requires a very difficult operation.

（この発明が解決しようとする問題点） この発明はポリエステルフイルム片Ａの被接着
辺ａに長短があつても加熱体の交換を不要とし且
つ加熱体の作動を簡単に行えるようにすることを
目的とする。(Problems to be Solved by the Invention) This invention aims to eliminate the need for replacing the heating element and to enable the heating element to be operated easily even if the adhered side a of the polyester film piece A has a length or shortness. purpose.

（構成） つぎにこの発明は、一実施態様を示す図面に基
いて説明する。(Structure) Next, the present invention will be explained based on drawings showing one embodiment.

１は挟圧支持、２は挟圧支持台を示し、これら
の間に被接着ポリエステルフイルム片Ａ（以下フ
イルム片Ａという）が挟圧支持される挟圧支持手
段３を構成する。 Reference numeral 1 denotes a clamping support, and 2 denotes a clamping support stand, which constitute a clamping support means 3 between which a polyester film piece A to be adhered (hereinafter referred to as film piece A) is supported under clamping pressure.

４は棒状の加熱体を示し、この加熱体４はその
長手方向が前記手段３によつて挟圧支持されるフ
イルム片Ａの被接着辺ａの向きに合わせて移動台
７に配され、図中前記手段３の右側から左側へ一
定速度で被接着辺ａに沿つて平行移動するように
なつており、そして被接着辺ａに対応する加熱体
４の加熱面４ａ、その加熱面４ａの被接着辺ａに
対する間隔が先端部分から後端部分にかけて次第
に小さくなり、後端部分では見掛け上後端部分が
被接着辺ａに重なつていくような傾斜面に形成さ
れている加熱手段５を構成する。 Reference numeral 4 denotes a rod-shaped heating element, and this heating element 4 is arranged on a movable table 7 with its longitudinal direction aligned with the direction of the adhered side a of the film piece A that is supported under pressure by the means 3. The means 3 moves in parallel from the right side to the left side at a constant speed along the side to be bonded a, and the heating surface 4a of the heating body 4 corresponding to the side to be bonded a, and the surface of the heated surface 4a. The heating means 5 is formed into an inclined surface such that the distance from the adhesive side a gradually decreases from the tip to the rear end, and the rear end apparently overlaps the adhesive side a at the rear end. do.

６は溶融融着後の被接着辺ａを冷却する空気噴
出手段を示し、加熱体４と共に移動台７に支持さ
れている。 Reference numeral 6 denotes an air jetting means for cooling the side to be bonded a after melting and fusion bonding, and is supported by the movable table 7 together with the heating body 4.

加熱体４は被接着辺ａを部分的に連続して熱接
着してその全長を熱接着していく適当な長さを有
し、ニクロム線などの加温手段で常に一定の温度
になるように加温されており、その温度は加熱体
４を被接着辺ａの極近傍に配置するときに被接着
辺ａに溶融が始まる比較的低い温度に設定されて
いる。そして加熱体４はフイルム片Ａの厚さの大
小の違いによつて適した形状の加熱面４ａのもの
が選択され、第３図ａ，ｂ，ｃ及びｄにその各種
の断面形状のものを示し、同図中、ｄのものは厚
手フイルムの場合に特に好ましい。 The heating element 4 has an appropriate length for partially continuous thermal bonding of the side a to be bonded and thermal bonding for the entire length, and is kept at a constant temperature using a heating means such as a nichrome wire. The temperature is set to a relatively low temperature at which melting of the side a to be bonded begins when the heating body 4 is placed very close to the side a to be bonded. The heating element 4 has a heating surface 4a having a suitable shape depending on the thickness of the film piece A, and the various cross-sectional shapes are shown in Fig. 3a, b, c, and d. In the figure, the one marked d is particularly preferable for thick films.

（作用） ２枚重ね合わせたフイルム片Ａを、その被接着
辺ａを挟圧支持手段３外に所要幅突出するように
して挟圧支持板１、挟圧支持台２間に挟圧支持し
て、加熱手段５における移動台７を図中右側から
左側へ一定速度で平行移動させると、加熱体４は
被接着辺ａに沿つて移動し、被接着辺ａは加熱体
４の長さ分づつ連続して加熱されてその全長が加
熱される。被接着辺ａが加熱されると溶融して収
縮が発生し、被接着辺ａにおける加熱体４の長さ
に相当する、ある部分は加熱体４がその長さに相
当する距離を移動するに従つて収縮が大きくなつ
ていくが、加熱体４の加熱面４ａは、その加熱面
４ａの被接着辺ａに対する間隔が先端部分から後
端部分にかけて次第に小さくなり、後端部分では
見掛け上後端部分が被接着辺ａに重なつていくよ
うな傾斜面に形成されているので、先端部から後
端部分にかけての加熱体４の加熱面４ａと被接着
辺ａとの間隔が変わらず、従つて被接着辺ａの温
度を低下させずに被接着辺ａの極近傍から一定の
低温度での加熱がなされる。これにより被接着辺
ａの溶着面（上、下フイルム片Ａの接合面）につ
いての溶融速度を一定とし、溶融融着部の最高温
度も一定となる。(Function) Two overlapping film pieces A are pinched and supported between the pinching support plate 1 and the pinching support stand 2 in such a way that the side a to be adhered protrudes outside the pinching support means 3 by a required width. When the movable table 7 in the heating means 5 is moved in parallel from the right side to the left side in the figure at a constant speed, the heating body 4 moves along the side to be bonded a, and the side to be bonded a is equal to the length of the heating body 4. The entire length of the tube is heated by successive heating. When the side to be bonded a is heated, it melts and shrinks, and a certain portion of the side to be bonded corresponding to the length of the heating body 4 is moved as the heating body 4 moves a distance corresponding to that length. Therefore, the shrinkage increases, but the distance between the heating surface 4a of the heating element 4 and the side to be bonded a gradually decreases from the tip to the rear end, and the distance between the heating surface 4a of the heating element 4 and the side to be bonded gradually decreases from the tip to the rear end. Since the inclined surface is formed such that the part overlaps the side to be adhered a, the distance between the heating surface 4a of the heating element 4 and the side to be adhered from the tip to the rear end remains unchanged, As a result, heating is performed at a constant low temperature from the vicinity of the side to be bonded a without lowering the temperature of the side to be bonded a. As a result, the melting speed of the welding surface of the adhered side a (the bonding surface of the upper and lower film pieces A) is made constant, and the maximum temperature of the melted and fused portion is also made constant.

このようにして加熱体４が被接着辺ａに接触す
ることなく、その長さに相当する距離を移動する
とき、被接着辺ａに加熱体４の長さに相当する溶
融融着分が適当幅形成され、その溶融触着部が加
熱体４と共に移動する空気噴出手段６により急速
に冷却されて熱接着が為される。従つて加熱体４
が被接着辺ａに沿つてその全長移動すると、加熱
体４の長さに相当する分づつ、部分的に連続して
熱接着が行われていき被接着辺ａ全長の熱接着が
完成するのである。 In this way, when the heating body 4 moves a distance corresponding to the length of the side to be adhered a without coming into contact with it, the amount of melting and fusion corresponding to the length of the heating body 4 is appropriately applied to the side to be adhered a. A width is formed, and the molten contact portion is rapidly cooled by the air blowing means 6 that moves together with the heating body 4, thereby achieving thermal bonding. Therefore, the heating element 4
As it moves along the entire length of the side to be bonded a, thermal bonding is performed continuously in parts corresponding to the length of the heating element 4, and the thermal bonding of the entire length of the side to be bonded a is completed. be.

このようにして溶融固化した被接着辺ａには熱
分解が起こらず、断面均一に溶融融着されて接着
力の大きい熱接着が得られる。 No thermal decomposition occurs on the bonded side a that has been melted and solidified in this manner, and is melted and fused uniformly in cross section, resulting in thermal bonding with high adhesive strength.

（効果） この発明では加熱面を一定の傾斜面に形成した
所要長の加熱体を、フイルム片の被接着辺の収縮
を考慮しながら被接着辺の極近傍に沿つて平行移
動させることにより熱接着処理がなされるから、
一つの加熱体で以つて被接着辺に長短がある種々
のフイルム片の確実なる熱接着が行え、また加熱
体は一定方向に平行移動させればよいのであるか
らその操作が非常に簡単であり、また一定の低温
度での熱接着ができるから熱劣化が生ぜず機械的
強度が大きい接着が得られ、そして作業性がよい
等の効果を奏する。(Effect) In this invention, a heating element having a predetermined length with a heating surface formed on a certain slope is moved in parallel along the edge of the film piece to be bonded, taking into account the shrinkage of the edge to be bonded. Because the adhesive process is done,
A single heating element can reliably thermally bond various film pieces with long and short sides to be adhered, and since the heating element only needs to be moved in parallel in a certain direction, the operation is very simple. In addition, since thermal bonding can be performed at a constant low temperature, it is possible to obtain bonding with high mechanical strength without thermal deterioration, and it has advantages such as good workability.

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

第１図は平面図、第２図は側面図、第３図ａ，
ｂ，ｃ，ｄは加熱体の断面図、第４図ａは従来装
置の側面図、同図ｂは同平面図である。 １……挟圧支持板、２……挟圧支持台、４……
加熱体、４ａ……加熱体の加熱面、Ａ……被接着
ポリエステルフイルム片、ａ……被接着辺。 Figure 1 is a plan view, Figure 2 is a side view, Figure 3 a,
4b, c, and d are sectional views of the heating body, FIG. 4a is a side view of the conventional device, and FIG. 4b is a plan view thereof. 1... pinching support plate, 2... pinching support base, 4...
Heating body, 4a... Heating surface of heating body, A... Piece of polyester film to be adhered, a... Side to be adhered.

Claims (1)

【特許請求の範囲】[Claims] １ 挟圧支持板１、挟圧支持台２とからなる挟圧
支持手段３と、該手段３により挟圧支持される被
接着ポリエステルフイルム片Ａの手段３外に突出
する被接着辺ａに沿つて移動してその全長を加熱
する棒状の加熱体４を設けた加熱手段５とからな
り、加熱手段５における加熱体４の加熱面４ａ
は、その加熱面４ａの被接着辺ａに対する間隔が
先端部分から後端部分にかけて次第に小さくな
り、後端部分では見掛け上後端部分が被接着辺ａ
に重なつていくような傾斜面に形成されているこ
とを特徴とするポリエステルフイルムの熱接着装
置。1 A pinching support means 3 consisting of a pinching support plate 1 and a pinching support stand 2, and a piece of polyester film A to be bonded that is pinched and supported by the means 3 along a side to be bonded protruding outside the means 3. A heating surface 4a of the heating element 4 in the heating means 5 is provided with a rod-shaped heating element 4 that moves along the heating element 4 and heats the entire length of the heating element 4.
, the distance between the heated surface 4a and the side a to be bonded gradually becomes smaller from the tip to the rear end, and at the rear end, the rear end appears to be closer to the side a to be bonded.
A thermal bonding device for polyester film, characterized in that it is formed on an inclined surface that overlaps with the surface of the polyester film.
JP62304229A 1987-11-30 1987-11-30 Thermal adhesion device for polyester film Granted JPH01145124A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62304229A JPH01145124A (en) 1987-11-30 1987-11-30 Thermal adhesion device for polyester film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62304229A JPH01145124A (en) 1987-11-30 1987-11-30 Thermal adhesion device for polyester film

Publications (2)

Publication Number Publication Date
JPH01145124A JPH01145124A (en) 1989-06-07
JPH0518701B2 true JPH0518701B2 (en) 1993-03-12

Family

ID=17930559

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62304229A Granted JPH01145124A (en) 1987-11-30 1987-11-30 Thermal adhesion device for polyester film

Country Status (1)

Country Link
JP (1) JPH01145124A (en)

Also Published As

Publication number Publication date
JPH01145124A (en) 1989-06-07

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