JPS6067836A - Biaxial orientation tester - Google Patents

Biaxial orientation tester

Info

Publication number
JPS6067836A
JPS6067836A JP17435583A JP17435583A JPS6067836A JP S6067836 A JPS6067836 A JP S6067836A JP 17435583 A JP17435583 A JP 17435583A JP 17435583 A JP17435583 A JP 17435583A JP S6067836 A JPS6067836 A JP S6067836A
Authority
JP
Japan
Prior art keywords
clip
pantograph
sample
clips
biaxial stretching
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
JP17435583A
Other languages
Japanese (ja)
Other versions
JPS6310374B2 (en
Inventor
Yoshitaka Sakamoto
阪本　吉孝
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.)
Teijin Ltd
Original Assignee
Teijin 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 Teijin Ltd filed Critical Teijin Ltd
Priority to JP17435583A priority Critical patent/JPS6067836A/en
Publication of JPS6067836A publication Critical patent/JPS6067836A/en
Publication of JPS6310374B2 publication Critical patent/JPS6310374B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/025—Geometry of the test
    • G01N2203/0254—Biaxial, the forces being applied along two normal axes of the specimen

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

PURPOSE:To improve the accuracy and reproducibility of measurement by building up a clip expansion mechanism with the first pantograph mechanism connected to each of clips and the second pantograph mechanism connected to clips at least alternately. CONSTITUTION:A clip expansion mechanism is made up of the first pantograph in which short links 31a and 31b are connected with pins 32-34 while holding bases 30 are each connected to a node thereof through pins 32 and 34 and the second pantograph in which alternate holding bases 30 are connected to nodes thereof through pins 32 and 37. As clips C are moved with the first and second pantographes, the space between the clips C is expanded evenly hourly and spatially. This enables orientation testing uniform hourly and spatially as well as with a better reproducibility.

Description

【発明の詳細な説明】 ａ、産業−にの利用分野 本発明は、各種フィルム、Ｍ、布、キャンパス。[Detailed description of the invention] a. Field of use in industry The present invention relates to various films, M, cloth, and canvas.

織物等のシー１〜状物を二軸同時に又は単独に延伸して
その特性を測定する二軸延伸試験機に関し、更に詳しく
は測定する試わ１の各辺を多数のクリップで把持し、該
クリップの間隔を拡大することにより試１３１を延伸す
るクリップテンタ式の二軸延伸試験機に関し、特に低倍
率の特性の測定に適したものである。Regarding a biaxial stretching tester, which measures the properties of a sheet-like material such as a textile by stretching it biaxially or independently, more specifically, each side of the specimen to be measured is held with a number of clips, and the The present invention relates to a clip tenter type biaxial stretching tester that stretches Sample 131 by increasing the interval between clips, and is particularly suitable for measuring characteristics at low magnification.

ｂ、従来技術 一般に、」二式のシート状物の二軸引張特性を調べるた
めに必要な二軸延伸試験装置は、性能上、（１）変形が
試料内で均一に起こること、（２１変形吊が正確にめら
れること、（３）各軸方向の応力が正確にめられること
、（４）二方向の変形量または二方向の応力の間に一定
の関係をイ＾つた状態で延伸することができ、結果の分
析を容易に行ないうろことなどの点を満足覆ることが望
まれる。b. Prior Art In general, the biaxial stretching test equipment required to investigate the biaxial tensile properties of two types of sheet-like materials has the following performance limitations: (1) deformation occurs uniformly within the sample; (3) The stress in each axial direction must be determined accurately. (4) The stretching should be performed with a certain relationship between the amount of deformation in the two directions or the stress in the two directions. It is desirable to be able to easily analyze the results and to satisfactorily cover points such as scales.

従来の二軸延伸試験機は大別して特公昭４９−７１９４
＠公報等に示されているような十字形の試料の各凸部端
を把持して試別を二軸方向に延伸する形式のものと、特
公昭４５−４００３３号公報、特公昭４５−４０６００
ｑ公報等に示されているような矩形の試料の各辺を幾つ
かに分割されたクリップで把持して試料を延伸する形式
のものとの２種類に分けられる。そして、近年は後者の
クリツブアンタ式のものが多用されている。Conventional biaxial stretching testing machines can be broadly classified into 1977-7194
The type shown in @ gazettes etc. in which each convex end of a cross-shaped sample is grasped and the specimen is stretched in biaxial directions, and the type shown in Japanese Patent Publication No. 45-40033 and Japanese Patent Publication No. 45-40600
There are two types of methods, such as those shown in the Q publication, etc., in which each side of a rectangular sample is held with clips divided into several parts and the sample is stretched. In recent years, the latter type of kritubanta style has been widely used.

ところで、上述の従来のクリップテンタ式のらのは、ク
リップの間隔を拡大する機構が１３ｊ公昭４５−４００
３３号公報の如くクリップのア−ｌ＼をユロ入りベアリ
ングで固定バー、移動バーに係合させたもの、あるいは
実公昭４９−２６６９２号公報の如くパンタグラフ機構
を用いるものであり、また矩形の試料の相隣接する２辺
のみが移動して試別を延伸し、これらに対面する他の２
　ｉ２２は固定となっている為、引張部付近の試料の変
形と固定部イ」近の試￥３１の変形■、変形速度、応力
等の諸条件が違い、異なった試別についての試験結果を
比較することができない問題があった。特に延伸倍率の
低い場合の測定においては、上）ホの点に起因する誤差
が大きく、信頼性のあるデータが得られない状況であっ
た。By the way, the above-mentioned conventional clip tenter type rano has a mechanism for expanding the gap between the clips, which was developed in 13J Kosho 45-400.
As in Publication No. 33, the arm of the clip is engaged with a fixed bar and a moving bar using a bearing containing Euro, or as in Publication of Utility Model Publication No. 49-26692, a pantograph mechanism is used. Only the two adjacent sides of are moved to extend the trial, and the other two sides facing them are
Since i22 is fixed, the deformation of the sample near the tensile part and the deformation of the sample near the fixed part, deformation speed, stress, etc. are different, and the test results for different tests are There was a problem with not being able to compare. Particularly in measurements at low stretching ratios, the error caused by point (e) above was large, making it impossible to obtain reliable data.

Ｃ９本発明の目的 本発明は、かかる現状に鑑みなされたもので、前）ボの
）（１能を満足し、且つ２倍以下の低延伸イ８率におい
ても再現性の良い安定した測定ができる二軸延伸試験機
を提供することを目的とするものである。C9 Purpose of the Invention The present invention was made in view of the current situation, and it is capable of stable measurement with good reproducibility even at a low stretching ratio of 2 times or less. The purpose is to provide a biaxial stretching tester that can

ｄ１本発明の構成及び作用 前記目的を達成する本発明は、以下の構成よりなるもの
である。d1 Structure and operation of the present invention The present invention that achieves the above object has the following structure.

即ち、本発明はシー１〜状試利の各辺を多数のクリップ
で把持し、該クリップの間隔を拡大することにより試料
を二軸方向に延伸するようにしたクリップデンタ式の二
軸延伸試験機において、前記クリップの拡大機構が、前
記クリップの保持台の各々と各節点が結合された第一の
パンタグラフ機構と、少なくとも一つ置き以上の前記ク
リップの保持台と各節点が結合された第二のパンタグラ
フ機構とを有することを特徴とする二ＩＩＩＩｌｌ延伸
試験機である。That is, the present invention is a clip-denter-type biaxial stretching test in which each side of a sample in the shape of a sheet is gripped with a large number of clips, and the sample is stretched in two axial directions by expanding the interval between the clips. In the machine, the clip enlarging mechanism includes a first pantograph mechanism coupled to each node of each of the clip holding bases, and a first pantograph mechanism coupled to at least every other clip holding base and each node. This is a two-III stretch testing machine characterized by having two pantograph mechanisms.

上）本の本発明は、前述の問題の対策を種々検問の結果
、その主因が延伸時のクリップの移動の不均一性にある
ことを見出しなされたものである。1) The present invention was developed after investigating various solutions to the above-mentioned problem and finding that the main cause of the problem was non-uniform movement of the clip during stretching.

すなわち、従来装置のパンタグラフ機（１４を用いたも
のでは、移動点近傍のクリップの間隔が大きく、固定点
近傍のクリップの間隔が小さくなり、クリップの間隔は
延伸時均−には拡大されず、またその時間的経過は一定
でない。そのため、前述の問題が生じ、特に低延伸倍率
ではクリップ間隔が小さいためその影響が大きくなって
いると思われた。That is, in the conventional pantograph machine (14), the interval between the clips near the moving point is large, the interval between the clips near the fixed point is small, and the interval between the clips is not expanded to the stretching time. In addition, the time course is not constant.As a result, the above-mentioned problem occurs, and the effect seems to be greater especially at low stretching ratios because the clip interval is small.

従って、問題解決にはクリップの延伸時の移動の均一化
が必要と考え、その対策を種々検討した結果、上述の本
発明に到達したものである。Therefore, in order to solve the problem, it was thought that it was necessary to make the movement of the clip uniform during stretching, and as a result of various studies on countermeasures, the above-mentioned present invention was arrived at.

上述の本発明は、少なくとも一つ置きのクリップと連結
した第二のパンタグラフ機構を設けであるので、移動点
近傍のクリップの動きは長いリンクの第二のパンタグラ
フ機構により中央及び他端に速く伝達されるので、クリ
ップの間隔は平均化され、前述の問題が解決された。The present invention described above is provided with a second pantograph mechanism connected to at least every other clip, so that the movement of the clip near the moving point is quickly transmitted to the center and other ends by the long link second pantograph mechanism. As a result, the clip spacing is averaged and the aforementioned problem is resolved.

に述の点から、第二のパンタグラフ１１ｆ％は第一のパ
ンタグラフ機構の動きを平均化するのに適当な長さのリ
ンクを有し且つクリップと結合できるものであれば良く
、全体のストローク、クリップ数等を考慮して選定する
。少なくとも一つ置き以上のクリップと結合できるもの
であれば、上述の平均化の効果が得られる。From the point mentioned above, it is sufficient that the second pantograph 11f% has a link of an appropriate length to equalize the movement of the first pantograph mechanism and can be connected to the clip, and the overall stroke, Select by considering the number of clips, etc. As long as it can be combined with at least every other clip, the above-mentioned averaging effect can be obtained.

更に、上述の本発明において、各辺の中点に対応づるク
リップを固定し、その両側へ拡大するようになすと、同
じ延伸倍率において従来の一辺固定方式に比べ、ストロ
ークが半減するので、それだけ精度が良く且つ再現性の
良い測定ができる効果がある。Furthermore, in the present invention described above, if the clip is fixed at the midpoint of each side and expanded to both sides, the stroke will be halved compared to the conventional one-side fixation method at the same stretching ratio. This has the effect of allowing measurements to be made with good precision and good reproducibility.

以上のように、本発明は、従来装置の問題点を解決した
ばかりでなく、正確な二軸延伸特性の測定を可能どした
非常に優れたものである。As described above, the present invention is extremely superior in that it not only solves the problems of the conventional apparatus, but also enables accurate measurement of biaxial stretching properties.

以下、本発明の詳細を高分子フィルムの特性の測定に好
適な実施例に基いて図面にＪ：り説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be explained below with reference to the drawings based on examples suitable for measuring the properties of polymer films.

第１図（ま、前記実施例の二軸延伸部の構成図、第２図
はその拡大機構の詳細図、第３図はその部分側断面図で
ある。FIG. 1 is a configuration diagram of the biaxial stretching section of the above embodiment, FIG. 2 is a detailed diagram of its enlargement mechanism, and FIG. 3 is a partial side sectional view thereof.

第１図において、横軸をＸ、縦軸をＹど略称する。図の
１は駆動モータで、２．３はＸ方向の駆動軸、４．５は
Ｙ方向の駆動軸で、全て中点を境にその両側には亙いに
逆方向となる送りねじが穿設されている。駆動軸２はモ
ータ１と市軸され、駆動軸３は駆動軸２どギア２ａ、　
６ａで連結された中間軸６にＪ：リギア６ｂ、　３ａを
介して駆動される。一方、駆動軸４，５は歯車２ｂ、　
７ａ’　、　７ａでモータ１に連結された中間軸７によ
りギア７ｂ、　４ａ及びギア７ｃ、　５ａを介して駆動
される。すなわち、駆動軸２゜３．４．５はモータ１に
より同時に駆動されるようになっている。なお、図の８
は、図示省略した架台への取付部を示す。In FIG. 1, the horizontal axis is abbreviated as X and the vertical axis as Y. In the figure, 1 is the drive motor, 2.3 is the drive shaft in the X direction, and 4.5 is the drive shaft in the Y direction. It is set up. The drive shaft 2 is connected to the motor 1, and the drive shaft 3 is connected to a gear 2a,
It is driven to the intermediate shaft 6 connected by J: 6a via rear gears 6b and 3a. On the other hand, the drive shafts 4 and 5 have gears 2b,
It is driven by an intermediate shaft 7 connected to the motor 1 at 7a', 7a via gears 7b, 4a and gears 7c, 5a. That is, the drive shafts 2°3.4.5 are simultaneously driven by the motor 1. In addition, 8 in the figure
indicates an attachment part to a pedestal (not shown).

図の１１．１２はＸ方向に移動する移動台で、１３゜１
４はその下方にＹ方向に互いに平行に移動する移動台で
ある。移動台１１．１２は一駆動軸２，３の中点の両側
に位置し、その両側でギアＩｌａ　、　１１ｂ及びギア
１２ａ　、　１２ｂを介して螺合されている。また、移
動台＋３．１４も同様にして駆動軸４．５に螺合されて
いる。すなわち、移動台Ｎ、　１２．１３．１４は駆動
軸２．３．４．５によりその囲む面積が拡大するように
同時に移動するようになっている。なお、移動台１１．
１２．１３．１４の上面には、その軸方向に後ｊｌ！す
るクリップを案内づる係合）ｂ冒１ｃ　、　＋２ｃ　。11.12 in the figure is a movable table that moves in the X direction, 13°1
Reference numeral 4 denotes a movable table that moves parallel to each other in the Y direction below. The moving platforms 11, 12 are located on both sides of the midpoint of the drive shafts 2, 3, and are screwed together via gears Ila, 11b and gears 12a, 12b on both sides. Further, the moving table +3.14 is similarly screwed to the drive shaft 4.5. That is, the movable tables N, 12, 13, and 14 are simultaneously moved by the drive shaft 2.3.4.5 so that the area they enclose is expanded. In addition, the moving table 11.
12.13.14 has a rear jl! in its axial direction on the upper surface. 1c, +2c.

１３Ｃ、１４ｃが設けである。13C and 14c are provided.

図の２１．２２．２３．２４は、後述するパンタグラフ
ＢＱ　ＩＮの両９ツ１が固定される端点ブロックで、移
動台１１、１２上の移動台１１．１２と移動台１３．４
４の交点上の位置に移動自在に設りられている。具体的
には、端点ブロック２１は移動台１１と移動台１３どの
交点上に位置し、月つその係合溝１１ｃ　、　１３ｃに
係合して移動自在に移動台１１上に股（プられている。21, 22, 23, and 24 in the figure are the end blocks to which both nine parts 1 of the pantograph BQ IN, which will be described later, are fixed, and the movable base 11.12 and the movable base 13.4 on the movable bases 11 and 12 are fixed.
It is movably installed at a position on the intersection of 4. Specifically, the end point block 21 is located on the intersection of the movable base 11 and the movable base 13, and is engaged with the engagement grooves 11c and 13c of the moon shaft, and is movably pushed onto the movable base 11. There is.

他の端点ブロック２２．２３．２４も同様になっている
。寸なわら、端点ブ「ｊツク２１．２２．２３．２４は
、移動台１１゜１２．１３．１４の移動に伴なって、移
動台１１．１２と移動台１３．１４との交点上にあるよ
うに移動するようになっている。The other end blocks 22, 23, and 24 are also similar. However, as the movable base 11°12.13.14 moves, the end point block 21.22.23.24 is located on the intersection of the movable base 11.12 and the movable base 13.14. It is supposed to move like that.

そして、端点ブロック２１．２２．２３．２４の間には
係合ｊｌ１１ｃ　、　１２ｃ　、　１３ｃ　、　１４ｃ
の夫々に案内されてＸ方向、Ｙ方向に移動自在にクリッ
プＣとその保持台３０が配設されている。なお、移動台
ｉｔ、　１２゜１３、１４の各中点に位置するクリップ
ＧＯは原点クリップとして移動台１１．１２．１３．１
４の夫々に固定されている。And, between the end point blocks 21, 22, 23, 24 there are engagements jl11c, 12c, 13c, 14c.
A clip C and its holding base 30 are disposed so as to be freely movable in the X and Y directions while being guided by the clips C and 30, respectively. In addition, the clip GO located at each midpoint of the movable base it, 12°13, 14 is the origin clip of the movable base 11.12.13.1.
It is fixed to each of 4.

保持台３０は拡大機構により連結されており、第２図に
より端点ブロック２１の部分を例にその詳細を説明する
。図示の通り、拡大機構は、短いリンク３１ａ　、　３
１ｂをビン３２．３３．３４テ結合し、保持台３０の夫
々とその節点とがビン３２．３４を介して結合された第
一のパンタグラフと、長いリンク３５ａ。The holding bases 30 are connected by an enlargement mechanism, and the details thereof will be explained with reference to FIG. 2, taking the end point block 21 as an example. As shown, the enlargement mechanism includes short links 31a, 3
1b is coupled to the first pantograph via the bins 32, 33, and 34, and each of the holding bases 30 and its nodes are coupled via the bins 32, 34, and a long link 35a.

３５ｔｌをビン３２．３６．３７で結合し、一つおきの
保持台３０とその節点とがビン３２．３７を介して結合
されイー竿−のパゝ／　ｈ　／ｆ円コシｈ＼久た７、　
ン１゜Ｔ　パンタグラフと保持台３０とは、その一方の
側の節点具体的にはビン３２で結合された節点は保持台
３０とその一端の定点で回転自在にビン３２を介して結
合され、他方の側の節点具体的にはビン３４．３７で結
合された節点はイア持合３０とその１１！＋＋１方向に
設けた摺動）呂３８によりビン３５．３７上の同軸上に
設けた係合ローラ３４’　、　３７’　を介して保持台
３０の軸方向に移動自在で係合点すなわちビン３４．３
７回りに回転自在に結合されている。そして、パンタグ
ラフの一端は端点ブロック２１の上側端に保持台３０と
の結合と全く同様に結合される。その他部：は第１図に
示す原点クリップＣＯの保持台３０に同様に結合される
。35tl are connected by the bins 32, 36, and 37, and every other holding stand 30 and its nodes are connected via the bins 32, 37, and the e-rod's pi/h/f circle koshi h\kita 7 ,
1°T The pantograph and the holding stand 30 are connected at a node on one side of the holding stand 30, specifically, at a fixed point at one end of the holding stand 30 via the bottle 32, and The nodes on the other side, specifically the nodes connected by bins 34 and 37, are 30 and 11! The slide 38 provided in the ++1 direction is movable in the axial direction of the holding base 30 via engagement rollers 34' and 37' provided coaxially on the bin 35.37, and the engagement point, that is, the bin 34.3.
It is rotatably connected around 7 rotations. One end of the pantograph is connected to the upper end of the end block 21 in exactly the same way as it is connected to the holding base 30. Other parts: are similarly connected to the holding base 30 of the origin clip CO shown in FIG.

全く同様にして、第１図に示ず試料Ｓを把持する四辺の
拡大機構が構成されている。In exactly the same manner, a four-sided enlarging mechanism for gripping the sample S, not shown in FIG. 1, is constructed.

ところで、保持台３０は、第３図に示すように、その下
面に突設した係合台３０ａを移動台１１の係合溝１１ｃ
に係合さけ、移動台１月二を安定して移動できるように
なっている。また、クリップＣは、図示省略したばねに
より支持されたヘッドＨで試料Ｓを挟持する高分子フィ
ルムに適した公知のものとなっている。そして、各辺の
中点の原点クリップＧｏに歪ゲージ（図示省略）を取り
付け、延伸応力を測定づるようになっている。By the way, as shown in FIG.
The movable base can be moved stably by engaging the movable base. Further, the clip C is a known clip suitable for use with a polymer film that holds the sample S between a head H supported by a spring (not shown). A strain gauge (not shown) is attached to the origin clip Go at the midpoint of each side to measure the stretching stress.

また、」−述の丁軸延伸機構は、湿度制御可能な恒温格
中に設置され、任意の設定延伸温度で試験できるＪ：う
になっている。すなわち、全体どじでは操作パネル（図
示省略）で温度７延伸応力、延伸速度９倍率等が設定で
き、その設定飴で制御された各試料の延伸データが得ら
れるｊ：うになっている。Furthermore, the above-mentioned axial stretching mechanism is installed in a constant temperature chamber where humidity can be controlled, so that it can be tested at any set stretching temperature. That is, in the overall drawing, temperature 7 stretching stress, stretching speed 9 times, etc. can be set on the operation panel (not shown), and stretching data for each sample controlled by the settings can be obtained.

次に以上の構成による試料Ｓの二軸延伸試験を説明する
。Next, a biaxial stretching test of sample S with the above configuration will be explained.

第１図に示すクリップＣの間隔が最も縮小したリセツ１
へ位置において、テストする矩形の試料ＳをクリップＣ
にレットする。Reset 1 in which the interval between clips C shown in Fig. 1 is the smallest
Clip the rectangular sample S to be tested at the position C
Let it be.

次いで、モータ１を起動すると、前述の構成により、駆
動軸２．３，４．５が回転し、移動台１１゜１２、１３
．１４は図の矢印の方向へ同じ速度で移動づる。移動台
１１．１２．１３．１４の移動に伴なって、端点ブロッ
ク２１．２２．２３．２４が拡大方向に移動する。Next, when the motor 1 is started, the drive shafts 2.3, 4.5 rotate due to the above-described configuration, and the moving tables 11, 12, 13 are rotated.
．． 14 moves at the same speed in the direction of the arrow in the figure. As the moving table 11.12.13.14 moves, the end block 21.22.23.24 moves in the enlargement direction.

前］ボの通り、各試料各辺の中点に位置づる原点クリッ
プＧｏは、各移動台１１．　＋２．１３．１４に固定さ
れているので、端点ブロック２１．２２．２３．２４の
移動により試料Ｓの各辺は原点クリップＣＯを中心にそ
の両側に延伸される。そして、この時各クリップＣは第
２図に示すように第−及び第二のパンクグラフのけ構に
より移動するので、各クリップＣ間の間隔は時間的にも
空間的にも均一に拡大される。従って、時間的にも空間
的にも一様な延伸試験が可能となると共に再現性の良い
延伸試験か可能となった。また、試料Ｓの中心が原点と
なっているため、２辺固定型の従来装置に比較し、部分
的な応力集中も少なく、正確な測定が可能と４ｒると共
に、同じイ８率試験で必要な移動長は従来装置の１／２
であり、それだ（プ測定粘度上右利となつＩこ。As shown in [Previous], the origin clip Go located at the midpoint of each side of each sample is connected to each moving table 11. +2.13.14, each side of the sample S is stretched to both sides of the origin clip CO by moving the end point blocks 21.22.23.24. At this time, each clip C moves according to the structure of the first and second puncture graphs as shown in Fig. 2, so the intervals between each clip C are uniformly expanded both temporally and spatially. Ru. Therefore, it has become possible to perform a stretching test that is uniform both temporally and spatially, and with good reproducibility. In addition, since the center of the sample S is the origin, there is less local stress concentration compared to the conventional device with two fixed sides, making it possible to measure accurately. The travel length is 1/2 that of conventional equipment.
And that's it.

そして、所定倍率若しくは破断等の終点に達すると、モ
ータ１をオフとして試験終了となる。When the end point such as a predetermined magnification or breakage is reached, the motor 1 is turned off and the test ends.

なお、以」ニの操作は、移動台１１．’１２．１３．１
４の移動用１位置等を検出する検出器を設けて、自動化
することもでき、このようにすると便利である。Note that the following operations are performed on the moving platform 11. '12.13.1
It is also possible to automate the operation by providing a detector for detecting the first position of movement of No. 4, etc., and it is convenient to do so.

次に以上の実施例による各クリップ間隔の差の測定結果
を表１に示す。表１にはポリエチレンプレフタレートフ
ィルムの１００ｍｍＸ　１０（ｌｎ＋＋＋＋の大きさの
り゛ンプルを温度８０°Ｃで表の各倍率まで延伸した時
のクリップ間隔の最大値と最小（１ｒ１の差を示しであ
る。なお比較例は米国のＴ、　Ｍ、　ｌ　ｏｎｇ社製の
へビーデコーティ型延伸試験機（１＠ｅａｒｙ［）　Ｕ
ｊｌ／Ｔｙｐｅ　５ｔｒｅｔｃｈｅｒ　）の実測値であ
る。Next, Table 1 shows the measurement results of the differences in clip intervals according to the above embodiments. Table 1 shows the difference between the maximum and minimum clip distances (1r1) when a 100mm x 10 (ln++++) polyethylene prephthalate film was stretched at a temperature of 80°C to each magnification shown in the table. In addition, the comparative example was a Heby-de-Coaty type stretching tester (1@early [) U made by T, M, LONG Co., Ltd. in the United States.
jl/Type 5tretcher).

表１ 表１Ｊ：す、本実施例では倍率によらずクリップ間隔に
差はなく、等間隔の理想的な延伸がなされていることが
わかる。Table 1 Table 1J: In this example, there is no difference in clip spacing regardless of the magnification, and it can be seen that ideal stretching with equal spacing is achieved.

以上、本発明を実施例に基いて説明したが、本発明はか
かる実施例に限定されるものでない。Although the present invention has been described above based on examples, the present invention is not limited to these examples.

二軸同時延伸の場合について説明したが、各軸独立に延
伸しても良いことはいうまでもなく、この場合は、第１
図で中間軸７を別のモータで駆動するようにすることに
より容易に実現できる。Although we have explained the case of simultaneous biaxial stretching, it goes without saying that each axis may be stretched independently.
This can be easily realized by driving the intermediate shaft 7 with a separate motor as shown in the figure.

四辺の中点のクリップを固定しその両側へ延伸する構成
を示したが、本発明の二つのパンクグラフからなる拡大
機構は従来装置にも適用でき、測定の再現性、正確な測
定等の面で同じ効果が１ｑられることは本発明の趣旨か
ら明らかである。Although a configuration has been shown in which the clip is fixed at the midpoint of the four sides and extended to both sides, the enlargement mechanism consisting of two puncture graphs of the present invention can also be applied to conventional devices, and improves measurement reproducibility, accurate measurement, etc. It is clear from the spirit of the present invention that the same effect can be obtained by 1q.

以上の通り、本発明は、クリップの拡大機構をクリップ
の夫々と結合した第一のパンタグラフ機構と少なくとも
一つおきのクリップと結合した第二のパンタグラフｍ　
４Ｍとで描成し、クリップの延伸に伴なう移動を均一化
したもので、シー１〜状物の二軸延伸特性の測定の精度
、再現性等の向上に奇′）ツーるところ人のものである
。As described above, the present invention provides a first pantograph mechanism in which a clip enlargement mechanism is coupled to each of the clips, and a second pantograph mechanism in which a clip enlargement mechanism is coupled to at least every other clip.
4M, which equalizes the movement of the clip as it is stretched, has the potential to improve the accuracy, reproducibility, etc. of biaxial stretching characteristics of sheet-like objects. belongs to.

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

第１図は本発明の実施例の二軸延伸部の構成図、第２図
は該実施例のクリップの拡大機構の詳細図、第３図は該
拡大１ｆ３１構の側面図である。 １：モータ、　２，３，４．５：駆動軸１１、１２．１
３．１４：移動台、２１．２２．２３．２４：端点ブ［
コック、　Ｃ：クリップ、３０：保持台。 ３１ａ、３１ｂ　：第一のパンタグラフのリンク。 ３２、３３゜３４．３６．３７：ビン、３５ａ、３５ｂ
　：第二のパンタグラフのリンク 第１旧 矛Ｚ１図 を 矛ろ図FIG. 1 is a configuration diagram of a biaxial stretching section according to an embodiment of the present invention, FIG. 2 is a detailed diagram of a clip enlarging mechanism of the embodiment, and FIG. 3 is a side view of the enlarged 1f31 structure. 1: Motor, 2, 3, 4.5: Drive shaft 11, 12.1
3.14: Moving table, 21.22.23.24: End point block [
Cock, C: Clip, 30: Holding stand. 31a, 31b: First pantograph link. 32, 33° 34.36.37: Bin, 35a, 35b
: Second pantograph link First old spear Z1 diagram

Claims (1)

【特許請求の範囲】 １）シート状試料の各辺を多数のクリップで把持し、該
クリップの間隔を拡大することにより試料を二軸方向に
延伸するようにしたクリップテンタ式の二軸延伸試験機
において、前記クリップの拡大機構が、前記クリップの
保持台の各々と各節点が結合された第一のパンタグラフ
機構と、少なくとも一つ置き以上の前記クリップの保持
台と各節点が結合された第二のパンタグラフ機構とを有
することを特徴とする二軸延伸試験機。 ２）前記第−及び第二のパンタグラフｔｅｌ！　４Ｍの
一方の側の節点は前記クリップの保持台と共通の定点回
りに回動自在に結合され、他方の側の節点は該保持台の
長手方向に移動自在で且つ係合点回り回転自在に結合さ
れている特許請求の範囲第一項記載の二軸延伸試験機。 ３）前記試料の各辺の中点に対応するクリップを保持す
る移動台上に固定すると共に、固定したクリップを中心
にその両側へ延伸するようになしたこと特許請求の範囲
第１項若しくは第２項記載の二軸延伸試験機。[Claims] 1) A clip tenter-type biaxial stretching test in which each side of a sheet-like sample is held by a number of clips, and the sample is stretched in two axial directions by increasing the interval between the clips. In the machine, the clip enlarging mechanism includes a first pantograph mechanism coupled to each node of each of the clip holding bases, and a first pantograph mechanism coupled to at least every other clip holding base and each node. A biaxial stretching testing machine characterized by having two pantograph mechanisms. 2) Said first and second pantograph tel! A node on one side of the 4M is connected to the holding base of the clip so as to be rotatable around a common fixed point, and a node on the other side is connected to the holding base so as to be movable in the longitudinal direction and rotatable around the engagement point. A biaxial stretching tester according to claim 1. 3) A clip corresponding to the midpoint of each side of the sample is fixed on a movable stage that holds the sample, and the sample is extended to both sides centering on the fixed clip. The biaxial stretching tester described in Section 2.
JP17435583A 1983-09-22 1983-09-22 Biaxial orientation tester Granted JPS6067836A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17435583A JPS6067836A (en) 1983-09-22 1983-09-22 Biaxial orientation tester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17435583A JPS6067836A (en) 1983-09-22 1983-09-22 Biaxial orientation tester

Publications (2)

Publication Number Publication Date
JPS6067836A true JPS6067836A (en) 1985-04-18
JPS6310374B2 JPS6310374B2 (en) 1988-03-07

Family

ID=15977173

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17435583A Granted JPS6067836A (en) 1983-09-22 1983-09-22 Biaxial orientation tester

Country Status (1)

Country Link
JP (1) JPS6067836A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5083767A (en) * 1989-05-15 1992-01-28 Sharp Kabushiki Kaisha Sheet supplying device
JP2009244183A (en) * 2008-03-31 2009-10-22 Mitsubishi Materials Corp Two-axis tensile test device
WO2018088280A1 (en) * 2016-11-10 2018-05-17 国立大学法人群馬大学 Biaxial stretching device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5083767A (en) * 1989-05-15 1992-01-28 Sharp Kabushiki Kaisha Sheet supplying device
JP2009244183A (en) * 2008-03-31 2009-10-22 Mitsubishi Materials Corp Two-axis tensile test device
WO2018088280A1 (en) * 2016-11-10 2018-05-17 国立大学法人群馬大学 Biaxial stretching device

Also Published As

Publication number Publication date
JPS6310374B2 (en) 1988-03-07

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