JPH0462530B2 - - Google Patents
Info
- Publication number
- JPH0462530B2 JPH0462530B2 JP18683186A JP18683186A JPH0462530B2 JP H0462530 B2 JPH0462530 B2 JP H0462530B2 JP 18683186 A JP18683186 A JP 18683186A JP 18683186 A JP18683186 A JP 18683186A JP H0462530 B2 JPH0462530 B2 JP H0462530B2
- Authority
- JP
- Japan
- Prior art keywords
- film
- stretching
- link device
- link
- pitch
- 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
Links
- 230000000694 effects Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
- B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
- B29C55/16—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial simultaneously
- B29C55/165—Apparatus therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Advancing Webs (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はシート状物、たとえば熱可塑性樹脂フ
イルム等を縦方向および横方向に同時に延伸する
同時二軸延伸機に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a simultaneous biaxial stretching machine for simultaneously stretching a sheet-like material, such as a thermoplastic resin film, in the longitudinal and transverse directions.
従来の同時二軸延伸装置は、特公昭44−7155号
に記載のように、フイルムの両縁部を握持して延
伸せしめるリンク装置は、折尺状に蝶着，連結さ
れた等長リンクよりなり、縦方向の延伸は案内レ
ール幅の規制により相隣るリンクが成す交差角度
を変えることにより、即ち延伸前後のフイルムつ
かみピツチを変えることによつて行なつている。
かかる機構においては、延伸前および延伸後のフ
イルムつかみピツチ比が一定のため、縦方向の延
伸比が一定である。
In the conventional simultaneous biaxial stretching device, as described in Japanese Patent Publication No. 44-7155, the link device that grips both edges of the film and stretches it is an equal length link hinged and connected in a folded shape. Stretching in the longitudinal direction is carried out by changing the intersecting angle formed by adjacent links by regulating the guide rail width, that is, by changing the film gripping pitch before and after stretching.
In such a mechanism, since the film gripping pitch ratio before and after stretching is constant, the stretching ratio in the longitudinal direction is constant.
上記従来技術は、縦方向の延伸倍率が一定のた
め、延伸条件が固定化し、一定のフイルムしか生
産できないという問題があつた。
The above-mentioned conventional technology has a problem in that since the stretching ratio in the longitudinal direction is constant, the stretching conditions are fixed and only a certain number of films can be produced.
本発明の目的は、１台の機種で延伸条件が自由
に選定できるリンク装置を提供することにある。
即ち多目的に使用できる延伸装置を提供すること
にある。 An object of the present invention is to provide a link device in which stretching conditions can be freely selected using one model.
That is, the object is to provide a stretching device that can be used for multiple purposes.
上記問題点を解決するには、延伸前後いずれか
一方のフイルムつかみピツチを一定にし、他方の
フイルムつかみピツチを自由に変換できる構造を
採用することにより達成される。即ち、延伸前の
フイルムつかみピツチは折尺状の等長リンクの蝶
着部に設置されたストツパーの外径寸法により決
定される。一方、延伸後のフイルムつかみピツチ
は相隣る等長リンクを連結しているチエーンプレ
ートのピツチで決定される。
The above-mentioned problems can be solved by adopting a structure in which the film gripping pitch on either side before or after stretching is kept constant, and the other film gripping pitch can be freely changed. That is, the gripping pitch of the film before stretching is determined by the outer diameter of the stopper installed at the hinge of the folded length link. On the other hand, the gripping pitch of the film after stretching is determined by the pitch of the chain plates connecting adjacent links of equal length.
今、延伸後のフイルムつかみピツチ、即ち、チ
エーンプレートのピツチを一定にし、外径寸法の
違つたストツパーを何種か用意してこれを組替え
ることにより、容易に縦方向の延伸倍率を変える
ことが可能となる。同様にストツパー外径を一定
にした場合、チエーンピツチを変えれば、縦方向
の延伸倍率を変えることができる。 Now, it is possible to easily change the stretching ratio in the longitudinal direction by keeping the film holding pitch after stretching, that is, the pitch of the chain plate constant, and by preparing several types of stoppers with different outer diameters and rearranging them. becomes possible. Similarly, when the outer diameter of the stopper is kept constant, the stretching ratio in the longitudinal direction can be changed by changing the chain pitch.
延伸部入口迄のリンク装置は、フイルム供給部
のスプロケツトで押し付けられ駆動するため、フ
イルム握持ピツチはストツパー外径寸法で決定さ
れる。縦方向の延伸倍率は延伸後のフイルム握持
ピツチを延伸前の握持ピツチで除したものである
から、ストツパーの外形寸法を変えることにより
延伸倍率を変えることができる。
Since the link device up to the entrance of the stretching section is pressed and driven by the sprocket of the film supply section, the film gripping pitch is determined by the outside diameter of the stopper. Since the stretching ratio in the longitudinal direction is calculated by dividing the gripping pitch of the film after stretching by the gripping pitch before stretching, the stretching ratio can be changed by changing the external dimensions of the stopper.
以下、本発明の一実施例を第１図〜第４図によ
り説明する。１はフイルム、２は等長のリンクプ
レート６，６′をジグザグに連結したリンク装置
で、フイルム１の両側に末広がりに配置されたガ
イドレール９，１０，１１，１２によつて運動を
規制され、スプロケツト４，４′および５，５′に
よりエンドレスに駆動される。３はリンク装置２
の一端に取付けられたフイルムつかみ子、７，
７′はリンク装置２のリンクプレート６，６′の蝶
着部に取付けられたストツパーである。フイルム
１は矢印Ａ方向に連続的に進行しながら、リンク
装置２のフイルムつかみ子３によつて、その両側
縁を握持されたまま、縦方向および横方向の二方
向に同時に延伸される。
An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. 1 is a film, and 2 is a link device in which link plates 6 and 6' of equal length are connected in a zigzag manner, and its movement is regulated by guide rails 9, 10, 11, and 12 that are disposed on both sides of the film 1 and spread out toward each other. , sprockets 4, 4' and 5, 5'. 3 is link device 2
7, a film gripper attached to one end of the
Reference numeral 7' denotes a stopper attached to the hinged portions of the link plates 6, 6' of the link device 2. The film 1 continues to advance in the direction of arrow A and is simultaneously stretched in two directions, the longitudinal and lateral directions, while its both edges are held by the film grippers 3 of the link device 2.
延伸部入口迄（Ｂ）のリンク装置２は、第２図
に示すように、相隣り合う等長リンクが成す交差
角である頂角θ(i)が最小の状態で走行する。即ち、
延伸部入口迄（Ｂ）のリンク装置２は、スプロケ
ツト４，４′で押し付けられ駆動するため、リン
クプレート６，６′の蝶着部に設置されているス
トツパー７，７′の外面に押し付けながら、フイ
ルムつかみピツチP(i)＝ストツパー７，７′外径寸
法Ｄで走行する。延伸部以降（Ｃ）のリンク装置
２は、出口側スプロケツト５，５′で引張られる
ため、第３図に示すように、リンクプレート６，
６′の頂角θ(0)が最大の状態となる。即ち、フイル
ムつかみピツチP(0)は、チエーンピツチＥとなる。 As shown in FIG. 2, the link device 2 up to the entrance of the extension part (B) runs in a state where the apex angle θ (i), which is the intersection angle formed by adjacent links of equal length, is minimum. That is,
The link device 2 up to the extension part entrance (B) is pressed and driven by the sprockets 4, 4', so it is pressed against the outer surface of the stoppers 7, 7' installed at the hinge parts of the link plates 6, 6'. , film gripping pitch P (i) = stopper 7, 7' travels with outer diameter dimension D. The link device 2 after the extension part (C) is pulled by the outlet side sprockets 5, 5', so as shown in FIG.
The apex angle θ (0) of 6′ is the maximum state. That is, the film gripping pitch P (0) becomes the chain pitch E.
かかる機構において、今、チエーンピツチＥを
一定にした状態でストツパー７，７′外径寸法の
異つたものに簡単に組替えるために、ストツパー
７，７′形状を第５図に示すような４種類の外形
寸法を持つ多円形のストツパー７，７′とした場
合、各位置，，，によりフイルム入口側
の握持ピツチが決定される。即ち、第２図におい
て説明すると、今、ストツパー７，７′同士が密
着する位置に点を合すと、フイルムつかみピツ
チP(i)は，′となる。また、同位置に点を合
すと、同様にフイルムつかみピツチP(i)は，
′となる。このようにストツパー７，７′を回転
して所望する位置に固定すれば、フイルム１は入
口側のつかみピツチP(i)の変換は容易であり、か
つ、縦方向の延伸倍率も変換可能となる。 In this mechanism, in order to easily replace the stoppers 7, 7' with different outer diameter dimensions while keeping the chain pitch E constant, four types of stopper 7, 7' shapes are available as shown in FIG. When the stoppers 7, 7' are polycircular in outer dimensions, the gripping pitch on the film entrance side is determined by each position, . That is, to explain with reference to FIG. 2, if the points are now aligned at the position where the stoppers 7 and 7' are in close contact with each other, the film gripping pitch P (i) will be '. Also, if you match the points at the same position, the film gripping pitch P (i) will be
'. By rotating the stoppers 7 and 7' and fixing them at desired positions in this way, it is easy to change the gripping pitch P (i) on the entrance side of the film 1, and the stretching ratio in the longitudinal direction can also be changed. Become.
本発明によれば、入口側のフイルムつかみピツ
チが有段階に可変可能となることから、縦方向の
延伸倍率も有段階に可変可能となり、種々違つた
延伸条件での運転が可能となる。即ち、多目的に
使用できる延伸機としての効果がある。
According to the present invention, since the film gripping pitch on the inlet side can be varied in a stepwise manner, the stretching ratio in the longitudinal direction can also be varied in a stepwise manner, making it possible to operate under various stretching conditions. That is, it is effective as a stretching machine that can be used for multiple purposes.
第１図は本発明による縦方向の延伸倍率変換可
能な同時二軸延伸機の平面図、第２図は同じくリ
ンク装置の延伸前の拡大平面図、第３図は同じく
リンク装置の延伸後の拡大平面図、第４図は第２
図のア−ア縦断面図、第５図は本発明の一実施例
を示す多円形ストツパーの平面図である。
１……フイルム、２……リンク装置、３……フ
イルムつかみ子、４，４′，５，５′……リンク駆
動用のスプロケツト、６，６′……リンクプレー
ト、７，７′……ストツパー、９〜１２……ガイ
ドレール、Ａ……フイルム進行方向、Ｂ……予熱
部、Ｃ……延伸部、Ｄ……ストツパー外径、Ｅ…
…チエーンピツチ、P(i)……延伸前つかみピツチ、
P(0)……延伸後つかみピツチ、θ(i)……延伸前リン
クプレート交差角、θ(0)……延伸リンクプレート
交差角。
FIG. 1 is a plan view of a simultaneous biaxial stretching machine capable of converting the stretching ratio in the longitudinal direction according to the present invention, FIG. 2 is an enlarged plan view of the link device before stretching, and FIG. 3 is an enlarged plan view of the link device after stretching. Enlarged plan view, Figure 4 is the second
FIG. 5 is a plan view of a polycylindrical stopper showing an embodiment of the present invention. 1... Film, 2... Link device, 3... Film gripper, 4, 4', 5, 5'... Link drive sprocket, 6, 6'... Link plate, 7, 7'... Stoppers, 9 to 12... Guide rail, A... Film traveling direction, B... Preheating section, C... Stretching section, D... Stopper outer diameter, E...
…Chain pitch, P (i) …Grasp pitch before stretching,
P (0) ... Grasp pitch after stretching, θ (i) ... Link plate crossing angle before stretching, θ (0) ... Link plate crossing angle after stretching.
Claims (1)
エンドレスのリンク装置を設け、該リンク装置の
一端にフイルムつかみ子を設け、このリンク装置
を案内するガイドレールをフイルムの両端に設
け、複数個のスプロケツトにより前記リンク装置
を駆動することによりフイルムを縦横二方向に同
時延伸する同時二軸延伸機において、リンク装置
のリンクプレート蝶着部に複数個の外形寸法を備
えたストツパーを設けたことを特徴とする縦方向
の延伸倍率変換可能な同時二軸延伸機。1 An endless link device is provided in which link plates of equal length are connected in a zigzag pattern, a film gripper is provided at one end of the link device, guide rails are provided at both ends of the film to guide this link device, and a plurality of sprockets are provided. The simultaneous biaxial stretching machine that simultaneously stretches the film in both longitudinal and lateral directions by driving the link device is characterized in that a stopper having a plurality of external dimensions is provided at the link plate hinge portion of the link device. Simultaneous biaxial stretching machine that can change the stretching ratio in the longitudinal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18683186A JPS6342839A (en) | 1986-08-11 | 1986-08-11 | Simultaneous biaxial stretching machine that can change the stretching ratio in the longitudinal direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18683186A JPS6342839A (en) | 1986-08-11 | 1986-08-11 | Simultaneous biaxial stretching machine that can change the stretching ratio in the longitudinal direction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6342839A JPS6342839A (en) | 1988-02-24 |
| JPH0462530B2 true JPH0462530B2 (en) | 1992-10-06 |
Family
ID=16195378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18683186A Granted JPS6342839A (en) | 1986-08-11 | 1986-08-11 | Simultaneous biaxial stretching machine that can change the stretching ratio in the longitudinal direction |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6342839A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4668215B2 (en) * | 2006-07-19 | 2011-04-13 | 東芝機械株式会社 | Clip-type sheet / film stretcher |
| KR101021768B1 (en) | 2006-07-19 | 2011-03-15 | 도시바 기카이 가부시키가이샤 | Clip-type sheet and film stretching device |
| JP4845619B2 (en) | 2006-07-19 | 2011-12-28 | 東芝機械株式会社 | Sheet / film oblique stretching method and clip-type sheet / film stretching apparatus |
| US8286313B2 (en) | 2007-01-23 | 2012-10-16 | Toshiba Kikai Kabushiki Kaisha | Sheet or film clipping stretcher |
| JP5366426B2 (en) | 2008-04-04 | 2013-12-11 | 東芝機械株式会社 | Method for forming porous film and sequential biaxial stretching apparatus for forming porous film |
| JP5371523B2 (en) | 2009-04-14 | 2013-12-18 | 東芝機械株式会社 | Film stretching apparatus and film stretching method |
-
1986
- 1986-08-11 JP JP18683186A patent/JPS6342839A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6342839A (en) | 1988-02-24 |
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Legal Events
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Free format text: JAPANESE INTERMEDIATE CODE: R313117 |
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| EXPY | Cancellation because of completion of term |