JPH01145124A - Thermal adhesion device for polyester film - Google Patents

Thermal adhesion device for polyester film

Info

Publication number
JPH01145124A
JPH01145124A JP62304229A JP30422987A JPH01145124A JP H01145124 A JPH01145124 A JP H01145124A JP 62304229 A JP62304229 A JP 62304229A JP 30422987 A JP30422987 A JP 30422987A JP H01145124 A JPH01145124 A JP H01145124A
Authority
JP
Japan
Prior art keywords
heating
stuck
length
stuck side
heating unit
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
JP62304229A
Other languages
Japanese (ja)
Other versions
JPH0518701B2 (en
Inventor
Yoshiaki Uchimoto
圭亮 内本
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.)
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

Abstract

PURPOSE:To make exchange of heating units unnecessary even if a length of a stuck side of a polyester film varies by a method wherein a heating unit of a necessary length whose heating surface has been formed on a fixed slope is moved in parallel with the stuck side along the same within a very short distance of the same while taking contraction of the stuck side of the film piece into consideration. CONSTITUTION:A film piece A obtained by superposing two sheets of the films upon each other, a stuck side (a) of which is pinched, pressed and supported between a pinching, pressing and supporting plate 1 and pinching, pressing and supporting rest 2 so that the stuck side (a) is ejected out of a pinching, pressing and supporting device 3 by a necessary width and a moving stage 7 in a heating device 5 is moved in parallel with the film piece A from the right side to the left side at a fixed speed. Therefore, the heating unit 4 is moved along the stuck side (a), the stuck side (a) is heated continuously in lengths of the heating unit 4 each and the whole length of the same is heated. When the stuck side (a) is heated, contraction is generated through melting at a certain place corresponding to the length of the heating unit 4 in the stuck side (a) and the contraction is kept becoming larger according as the heating unit 4 moves a distance corresponding to its length. As a space of a heating face 4a to the stuck side (a) becomes gradually smaller extending from a tip part to a rear end part is kept superposing upon the stuck side (a) from appearance point of view at the rear end part, in the heating face 4a of the heating unit 4.

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ィ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ィルム製袋の製作などのためにポリ
エステルフィルムを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５８−３
８２９７号公報「ポリエステルフィルムの熱接着法」に
見られるように、２枚重ね合わせたポリエステルフィル
ム片Ａを挟圧支持するための、一定長の挟圧支持板イ、
口を上下に設けたクランプ装置、挟圧支持板イ、口の外
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ａＳｂ）。(Prior art) Conventionally, for the production of polyester film bags, etc., there is a technique for thermally bonding the edges (sides to be bonded) of two layers of polyester film stacked together, for example, in Japanese Patent Publication No. 58-3.
As seen in Publication No. 8297 "Thermal bonding method of polyester film", a fixed length clamping support plate I for clamping and supporting two stacked polyester film pieces A;
A clamping device with upper and lower openings, a clamping support plate (a), and a device for applying the required heat to the side to be bonded (a) protruding outward from the opening.
There is a thermal bonding device which includes a heating device which brings a heating body C of a constant temperature placed opposite the entire length of the side to be bonded a and a heating device which moves them away from each other (FIG. 4aSb).

係る装置は、該装置によって熱接着が可能な最大限の長
さは加熱体ハ（挟圧支持板イ、口も同じ）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 plate A and the opening), but if the side to be bonded a is longer than the heating body C, If it is short, there is a problem that the side to be bonded (a) will be excessively heated when approached, resulting in large thermal contraction and distortion, and it is also uneconomical.

従って被接着辺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った。ま
た加熱体へが被接着辺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った。Therefore, there is a problem in that a heating element C having a length corresponding to the length of the side to be adhered a must be selected and replaced. Furthermore, when the heating element 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 account for the shrinkage of the side to be bonded a due to melting. Since this approach operation involves a very small distance and 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
エステルフィルム片Ａの被接着辺ａに長短があっても加
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 eliminates the need to replace the heating element and allows the heating element to be operated easily even if the adhered side a of the polyester film piece A is long or short. purpose.

（構　成） つぎにこの発明を、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は挟圧支持板、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ィルム片Ａ（以下フィルム片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 plate, and numeral 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によって挟圧支持されるフィルム片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に沿って
平行移動するようになっており、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、後端部分では見掛は上後端部分が被接
着辺ａに重なっ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 the movable table 7 so that its longitudinal direction is aligned with the direction of the side a to be adhered of the film piece A that is supported by the means 3. The means 3 is configured to move in parallel from the right side to the left side along the side to be bonded a at a constant speed, and the heating surface 4a of the heating body 4 corresponding to the side to be bonded a corresponds to the side to be bonded on the heating surface 4a. The heating means 5 is formed into an inclined surface such that the distance from the side a gradually decreases from the tip to the rear end, and the upper rear end apparently overlaps the side a to be bonded 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。The heating body 4 has an appropriate length for partially continuous thermal bonding of the side to be bonded a 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.

そして加熱体４はフィルム片Ａの厚さの大小の違いによ
っ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のものは厚手フィルムの場合に特に好ましい
。As the heating element 4, a heating surface 4a having a shape suitable for the difference in thickness of the film piece A is selected, and various cross-sectional shapes thereof are shown in FIGS. 3a, b, c and d.
In the same figure, the case d is particularly preferable in the case of a thick film.

（作　用） ２枚重ね合わせたフィルム片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に沿って移動し、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って収縮が大きくなっていくが、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、後端部分では見掛は上後端部分が被接着辺ａに
重なっていくような傾斜面に形成されているので、先端
部分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、従って被接着辺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 stacked film pieces A are pinched and supported between the pinching support plate 1 and the pinching support stand 2 so that the side a to be adhered protrudes to the outside of the pinching support means 3 by a required width. Then, 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 the length of the heating body 4. It is heated continuously over its entire length. When the side to be bonded a is heated, it melts and contracts, and in a certain part of the side to be bonded a that corresponds to the length of the heating body 4, the heating body 4 moves a distance corresponding to that length. However, the distance between the heated surface 4a of the heating element 4 and the side a to be bonded gradually decreases from the tip to the rear end, and the appearance at the rear end becomes smaller. Since the rear end portion is formed into an inclined surface that overlaps the adhered side a, the distance between the heating surface 4a of the heating element 4 and the adhered side a from the tip portion to the rear end portion remains unchanged. Therefore, heating is performed at a constant low temperature from the very 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部が適当幅形成
され、その溶融融着部が加熱体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
って加熱体４が被接着辺ａに沿っ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 bonded a without contacting it, a melted and fused portion corresponding to the length of the heating body 4 is appropriately formed on the side to be bonded a. A width is formed, and the melted and fused portion is rapidly cooled by the air blowing means 6 that moves together with the heating body 4, thereby achieving thermal bonding. Therefore, when the heating body 4 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 body 4, and the entire length of the side to be bonded a is thermally bonded. is completed.

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、フィ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っ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、一つの加熱体で以って被接着
辺に長短がある種々のフィ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。(Effects) In this invention, a heating element having a predetermined length and a heating surface formed on a certain slope is moved in parallel along the vicinity of the side to be bonded while taking into account the shrinkage of the side of the film piece to be bonded. Because thermal bonding is performed, a single heating element can reliably thermally bond various pieces of film with long and short sides to be adhered, and the heating element only needs to be moved in parallel in a fixed direction. Therefore, the operation is very simple, and since thermal bonding can be performed at a constant low temperature, a bond with high mechanical strength without thermal deterioration can be obtained, 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
図すは同平面図である。 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
ポリエステルフィルム片 ａ−・・被接着辺 第１　図 第３図 α　　　　ｂＣｄ 第４図 α　　　　　　　　　　ｂFigure 1 is a plan view, Figure 2 is a side view, Figure 3 is a, b, c,
4d is a sectional view of the heating element, and FIG. 4a is a side view and a plan view of the conventional device. 1 - Pressure support plate 2 - Pressure support base 4 - Heating element 4a - Heating surface A of heating element - Adhesive polyester film piece a - Adhesion side 1 Fig. 3 α bCd Fig. 4 α b

Claims (1)

【特許請求の範囲】[Claims] 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
フィルム片Ａの手段３外に突出する被接着辺ａに沿って
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に重なってい
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
エステルフィルムの熱接着装置。A pinching support means 3 consisting of a pinching support plate 1 and a pinching support stand 2
and a heating means 5 provided with a rod-shaped heating body 4 that moves along the adhered side a protruding outside the means 3 of the adhered polyester film piece A held under pressure by the means 3 and heats the entire length thereof. In the heating surface 4a of the heating body 4 in the heating means 5, the distance between the heating surface 4a and the side to be bonded a becomes gradually smaller from the tip to the rear end, and the rear end appears to be smaller at the rear end. A thermal bonding device for polyester film, characterized in that it is formed on an inclined surface that overlaps the side to be bonded (a).
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 true JPH01145124A (en) 1989-06-07
JPH0518701B2 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
JPH0518701B2 (en) 1993-03-12

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