JP2700997B2 - Scratch resistance measuring machine - Google Patents
Scratch resistance measuring machineInfo
- Publication number
- JP2700997B2 JP2700997B2 JP34693193A JP34693193A JP2700997B2 JP 2700997 B2 JP2700997 B2 JP 2700997B2 JP 34693193 A JP34693193 A JP 34693193A JP 34693193 A JP34693193 A JP 34693193A JP 2700997 B2 JP2700997 B2 JP 2700997B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- arm
- load
- main arm
- measuring
- 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 - Fee Related
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は塗装面、化粧板等の表面
に塗布した膜の強度（傷つきにくさ）を引掻抵抗として
測定する引掻抗測定機に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scratch resistance measuring apparatus for measuring the strength (hardness of a film) applied to the surface of a painted surface, a decorative plate or the like as a scratch resistance.
【０００２】[0002]
【従来の技術】従来、塗装面、化粧板等の各種物体の表
面にはコ−テイング加工が施されおり、この膜の強度
（傷つきにくさ）を評価するために、引掻測定機や表面
性測定機などによって測定されていた。しかし、これら
の測定機は、測定目的によって測定子を試験片に当接さ
せて一定の重量を段階的に荷重させて（分銅の載せか
え）測定子の先端と試験片の表面とが接触することによ
り生じる抵抗力を測定して垂直荷重と抵抗力との比例関
係（垂直荷重と摩擦抵抗とは比例関係にある。）が崩れ
た時点の垂直荷重を求めている。即ち、測定子が膜に傷
つけはじめるまで、或いは、膜を貫通させるまでの垂直
荷重を分銅の載せかえにより段階的に行ったり、測定子
に連続加重を与えて、膜に傷の付き始めた点、或いは、
膜を貫通させた点を目視により判断していた。2. Description of the Related Art Conventionally, the surfaces of various objects such as painted surfaces and decorative boards have been subjected to a coating process. In order to evaluate the strength (hardness to scratch) of this film, a scratch measuring machine or surface is used. It was measured by a sex measuring instrument. However, in these measuring machines, the tip of the probe comes into contact with the surface of the test piece by contacting the probe with the test piece according to the measurement purpose and applying a constant weight stepwise (replacement of the weight). The vertical force at the time when the proportional relationship between the vertical load and the resistive force (the vertical load and the frictional resistance are proportional) is determined by measuring the resulting resistive force. That is, the point at which the vertical load until the measuring element starts to damage the film, or the vertical load until it penetrates the film is stepwise changed by loading a weight, or the continuous load is applied to the measuring element, and the point at which the film starts to be damaged Or
The point at which the membrane was penetrated was visually determined.
【０００３】[0003]
【発明が解決しようとする課題】従来の測定機は、試験
片の測定目的により一定の荷重を垂直に加えて試験片の
摩擦・引掻抵抗を測定する装置、又は、連続的に加重を
加えて試験片の強度を摩擦・引掻抵抗として測定する装
置など使用目的に合わせた機械を夫々使用していた。そ
のため、測定目的が多岐に渡る場合、夫々の測定装置を
多数用意して測定しなければならず、装置が高額である
ため使用目的に合わせて多数の装置を揃えることは大変
不経済であると共に、複数の機械を使用する操作が面倒
であり、広い設置場所を必要として大変不便であった。
また、連続加重を加える摩擦・引掻測定機は、回転分銅
を作動させるモ−タと試験片を装着した移動台を作動さ
せるモ−タとの二つのモ−タを同期して作動させるため
構造が複雑で調整が大変であると共に高価である等の問
題点を有していた。A conventional measuring machine is a device for measuring a friction / scratch resistance of a test piece by applying a constant load vertically depending on the measurement purpose of the test piece, or continuously applying a load. Machines that match the purpose of use, such as devices that measure the strength of test pieces as friction and scratch resistance, were used. Therefore, when the measurement purpose is various, it is necessary to prepare a large number of each measurement device and perform the measurement, and it is very uneconomical to prepare a large number of devices according to the purpose of use because the device is expensive. However, operation using a plurality of machines is troublesome, and a large installation space is required, which is very inconvenient.
In addition, the friction / scratch measuring machine that applies a continuous load operates in synchronization with two motors, a motor that operates a rotating weight and a motor that operates a moving table on which a test piece is mounted. There are problems such as complicated structure, difficult adjustment, and high cost.
【０００４】本発明は、一定荷重引掻抵抗測定と連続加
重引掻抵抗測定を行うことができ、移動台を作動させる
モ−タで本装置をも駆動させるため、構造が簡単で安価
な測定機を提供することを目的とするものである。According to the present invention, a constant load scratch resistance measurement and a continuous load scratch resistance measurement can be performed, and this apparatus is also driven by a motor that operates a moving table, so that the measurement is simple and inexpensive. The purpose is to provide a machine.
【０００５】[0005]
【課題を解決するための手段】本発明は、かかる従来の
欠点に鑑みてなされたもので、本体上に樹立させた支柱
の上端にア−ム支持片を設け、該ア−ム支持片に枢動可
能に軸支した連結片の一端に主ア−ム、他端にバランス
ア−ムを夫々取付け、該主ア−ムの先端には一定荷重測
定用の分銅受皿と荷重変位変換器とを具えた測定子を上
下動可能に取付け、バランスア−ムには前記主ア−ムの
水平バランス調整用の第１錘部と第２錘部を夫々設け、
前記本体上には前記測定子の下端が接する位置に試験片
を載置する移動台を本体内に設けたモ−タにより進退動
可能に取付け、該移動台の一端には連続加重測定用の回
転分銅を転動可能に掛止する分銅受体を装着し、該分銅
受体が移動台と一体に進退動可能に配して一定荷重測定
時には前記支柱に取付けた可動つまみで主ア−ムを枢動
させて回転分銅を分銅受体の係止部に係止可能に設ける
構成を、上記課題を解決するための手段とするものであ
る。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks. An arm supporting piece is provided at an upper end of a column established on a main body, and the arm supporting piece is provided with the arm supporting piece. A main arm is attached to one end of a pivotally rotatably supported connecting piece, and a balance arm is attached to the other end, and a weight pan and a load displacement converter for measuring a constant load are attached to the tip of the main arm. A tracing stylus having a vertical arm is provided so as to be vertically movable, and a balance arm is provided with a first weight portion and a second weight portion for adjusting the horizontal balance of the main arm, respectively.
A movable table on which a test piece is placed at a position where the lower end of the probe comes into contact with the lower end of the probe is mounted on the main body so as to be able to move forward and backward by a motor provided in the main body. A weight receiver for rotatably hanging the rotating weight is mounted, and the weight receiver is arranged so as to be able to move forward and backward integrally with the moving table. When measuring a constant load, a main arm is provided by a movable knob attached to the support. Is a means for solving the above-mentioned problem, in which the rotating weight is pivotally pivoted to provide a rotating weight to the locking portion of the weight receiver.
【０００６】[0006]
【作用】連続加重引掻抵抗測定を行う場合、試験片の表
面を摩擦する測定子を、試験片の表面と当接させた後、
移動台を作動させると同時に回転分銅が主ア−ム上を測
定子方向に走行することにより測定子に重量が加重され
て、測定子の先端が試験片の膜層に徐々に食い込んでい
くことにより、摩擦抵抗と垂直荷重の増加が比例関係に
ある摩擦領域から検出抵抗値の急激な変化などによって
引掻抵抗に変わった点を、荷重変位変換器によって感知
してグラフに表すことにより試験片の引掻抵抗力を測定
することができる。一定荷重引掻抵抗測定を行う場合、
回転分銅を分銅受体の係止部に係止した後、受皿に一定
重量の錘を載せ、測定子に垂直方向から一定の荷重を加
えて試験片を載せた移動台を移動させることにより、試
験片上を走行する測定子の先端と被膜の表面との摩擦抵
抗の強弱により試験片上の被膜むらを感知測定すること
ができると共に、荷重を一定量づつ付加することにより
検出抵抗値の急激な変化などによって引掻抵抗に変わっ
た点を荷重変位変換器によって感知して、グラフに表す
ことにより試験片の引掻抵抗を測定することができる。[Action] When a continuous weighted scratch resistance measurement is performed, a probe that rubs the surface of the test piece is brought into contact with the surface of the test piece,
The weight is weighted by the rotating weight running on the main arm in the direction of the stylus at the same time as the moving table is operated, so that the tip of the stylus bites into the film layer of the test piece gradually. By using a load displacement transducer, the point where the frictional resistance and vertical load increase are proportional to the change from the friction region to the scratch resistance due to a sudden change in the detected resistance value, etc., is sensed by a load displacement transducer and displayed in a graph. Can be measured. When performing constant load scratch resistance measurement,
After the rotating weight is locked to the locking part of the weight receiver, a constant weight is placed on the pan, and a constant load is applied to the measuring element from the vertical direction to move the movable table on which the test piece is placed, The unevenness of the coating on the test piece can be sensed and measured by the strength of the frictional resistance between the tip of the probe running on the test piece and the surface of the coating, and the sudden change in the detected resistance value can be detected by applying a fixed amount of load. The point at which the scratch resistance is changed due to the above is sensed by the load displacement converter, and the scratch resistance of the test piece can be measured by representing the point in a graph.
【０００７】[0007]
【実施例】本発明の実施例を図１、２により説明する
と、測定機１は略方形に形成した本体２の四隅下部に夫
々上下動可能に脚部３を装着し、この本体２の上部中央
長手方向一側寄りに支柱４を設け、該支柱の上端にはコ
字形に形成した溝部６を上向きに位置したア−ム支持片
５を固着してある。このア−ム支持片５の溝部６内には
連結片８を位置させ、該連結片の幅方向に水平方向に突
出した軸９で該連結片とア−ム支持片５との摩擦抵抗を
少なくするためピボット式に枢動可能に軸支し、この連
結片８の長手方向一端には長尺な主ア−ム１５、該連結
片の他端で該主ア−ムと同一軸心上にバランスア−ム１
６を夫々取付けてある。また、この連結片８の上面には
該連結片を含めた主ア−ム１５とバランスア−ム１６を
含めた水平位置を確認するための水準器１２を取付けて
ある。さらに、前記ア−ム支持片５の上方一側には、主
ア−ム１５をピックアップさせるための可動つまみ１１
を取付けてある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 1 and 2. A measuring machine 1 has legs 3 attached to the lower four corners of a substantially rectangular main body 2 so as to be vertically movable. A column 4 is provided near one side in the central longitudinal direction, and an arm supporting piece 5 having a U-shaped groove 6 positioned upward is fixed to the upper end of the column. The connecting piece 8 is located in the groove 6 of the arm supporting piece 5, and the frictional resistance between the connecting piece and the arm supporting piece 5 is reduced by a shaft 9 projecting horizontally in the width direction of the connecting piece. In order to reduce the size of the connecting piece, the connecting piece 8 is pivotally supported so as to be pivotable. A long main arm 15 is provided at one longitudinal end of the connecting piece 8, and the other end of the connecting piece is coaxial with the main arm. Balance Arm 1
6 are attached respectively. On the upper surface of the connecting piece 8, a level 12 for checking the horizontal position including the main arm 15 including the connecting piece and the balance arm 16 is mounted. Further, a movable knob 11 for picking up the main arm 15 is provided on one upper side of the arm supporting piece 5.
Is installed.
【０００８】連結片８に一端を取付けた主ア−ム１５の
他端には、一定荷重引掻抵抗測定用の分銅を載置するた
めの受皿１８を設けた測定子１９と荷重変位変換器２１
（ロ−ドセル）を一体または別体に形成すると共に、該
荷重変位測定器の一側に取付けた回転ねじ２２により、
測定子１９を上下動可能に調整することができ、後記す
る試験片５５の厚さに合わせてこの測定子１９を上下動
させることにより、主ア−ム１５の水平を常に保つこと
ができる。この測定子１９の先端にはサフアイア、ダイ
ヤモンド等からなる引掻針２０を着脱可能に取付け、該
測定子が感知した摩擦または引掻抵抗は、該荷重変位変
換器で信号に変換して前記本体内に収容した増幅装置２
３（ダイナミックストレンジアンプ）で増幅させ、各種
記録装置に出力させることができる。At the other end of the main arm 15 having one end attached to the connecting piece 8, a measuring element 19 provided with a tray 18 for mounting a weight for measuring a constant load scratch resistance and a load displacement converter. 21
(Load cell) is formed integrally or separately, and a rotating screw 22 attached to one side of the load displacement measuring device is used.
The tracing stylus 19 can be adjusted so as to be vertically movable, and by moving the tracing stylus 19 up and down in accordance with the thickness of a test piece 55 described later, the main arm 15 can always be kept horizontal. A scratching needle 20 made of sapphire, diamond, or the like is detachably attached to the tip of the probe 19, and the friction or scratch resistance sensed by the probe is converted into a signal by the load displacement converter, and the signal is applied to the main body. Amplifying device 2 housed inside
3 (Dynamic Strange Amplifier) and output to various recording devices.
【０００９】前記したバランスア−ム１６には、前記測
定子１９の垂直荷重を相殺して主ア−ム１５が本体２の
表面と常に平行で水平位置を保つため、該バランスア−
ム上を移動可能に取付けた第１錘部２５と、該第１錘部
の下端で該バランスア−ム１６と平行な軸心上に第２錘
部２７を取付けてある。この第１錘部２５には測定子１
９に加わる重量に合わせてバランス分銅２６を交換可能
に取付けることができる。また、第２錘部２７の錘２８
を螺動させることにより主ア−ム１５の水平位置の微調
整が可能となり、主ア−ム１５の水平バランスの確認
は、前記連結片８の上部一側に取付けた水準器１２によ
って行うことができる。The balance arm 16 cancels the vertical load of the tracing stylus 19 so that the main arm 15 is always parallel to the surface of the main body 2 and keeps a horizontal position.
A first weight 25 is movably mounted on the arm, and a second weight 27 is mounted on an axis parallel to the balance arm 16 at the lower end of the first weight. The stylus 1 is attached to the first weight 25.
The balance weight 26 can be exchangeably mounted according to the weight added to the weight 9. Also, the weight 28 of the second weight portion 27
By screwing, the horizontal position of the main arm 15 can be finely adjusted, and the horizontal balance of the main arm 15 can be checked by the level 12 attached to one upper side of the connecting piece 8. Can be.
【００１０】３０は本体２上面で前記測定子１９の下側
に位置させた移動台で、該移動台の上面に試験片を装着
する台部３０ａを設け、前記主ア−ム１５の長手方向と
同一方向に進退動可能に形成してある。この移動台３０
の進退動は、該移動台の下面に設けたラック３３と本体
２内に取付けたモ−タ３４のプ−リ３７ａと前記ラック
３３と噛合する歯車３６に取付けたプ−リ３７ｂとをベ
ルト３５で連動させて行い、該移動台３０のスタ−ト位
置とエンド位置は、歯車３６の下部に設けた遮光板３８
と光センサ３９とにより設定され、約１００ｍｍの長さ
を往復動する。また、この移動台３０の一端には送りつ
まみ３２を取付けてあり、該送りつまみを回転させるこ
とにより該移動台の長手方向一側に設けた噛合部３１を
幅方向に移動できるように配してある。そのため、一枚
の試験片で複数回の測定を記録することができる。Reference numeral 30 denotes a moving table positioned below the tracing stylus 19 on the upper surface of the main body 2, and a base 30 a for mounting a test piece is provided on the upper surface of the moving table, and a longitudinal direction of the main arm 15 is provided. It is formed so that it can move forward and backward in the same direction. This moving table 30
The belt 33 comprises a rack 33 provided on the lower surface of the moving table, a pulley 37a of a motor 34 mounted in the main body 2, and a pulley 37b mounted on a gear 36 meshing with the rack 33. The start position and the end position of the movable base 30 are controlled by a light shielding plate 38 provided below the gear 36.
And the optical sensor 39, and reciprocates a length of about 100 mm. Further, a feed knob 32 is attached to one end of the moving table 30, and an engaging portion 31 provided on one side in the longitudinal direction of the moving table is arranged so as to be movable in the width direction by rotating the feeding knob. It is. Therefore, multiple measurements can be recorded with one test piece.
【００１１】４１は前記移動台３０の長手方向一端で且
つ支柱４側に取付けた分銅受体で、回転分銅５０は前記
主ア−ム１５上を安定走行するために、該回転分銅の幅
方向両側に設けた支持板４２の上方を夫々開口して長溝
部４３を設けてある。この長溝部の上端一側で支柱側に
は突起部４４を介して係止段部４５を連設し、該長溝部
内に回転分銅５０を上下動可能に収容してある。この回
転分銅５０の回転方向周面中央には前記主ア−ム１５上
を安定して走行するための溝部５１を設け、両側中央軸
心方向に前記長溝部内を挿通する軸受部５２を形成して
長溝部４３との摩擦抵抗を少なくしてある。５５は移動
台３０の台部３０ａ上に取付ける測定用の試験片であ
る。Reference numeral 41 denotes a weight receiver attached to one end in the longitudinal direction of the moving table 30 and on the side of the support column 4. The rotating weight 50 moves in the width direction of the rotating weight in order to stably travel on the main arm 15. Long grooves 43 are provided by opening the upper portions of the support plates 42 provided on both sides, respectively. A locking step 45 is continuously provided on one side of the upper end of the elongated groove and on the support side via a projection 44, and a rotating weight 50 is accommodated in the elongated groove so as to be vertically movable. A groove 51 for running stably on the main arm 15 is provided at the center of the circumferential surface of the rotary weight 50 in the rotation direction, and a bearing 52 is formed to pass through the long groove in the direction of the central axis on both sides. The frictional resistance with the long groove 43 is reduced. Reference numeral 55 denotes a test piece for measurement mounted on the platform 30a of the movable platform 30.
【００１２】次に、本実施例の作用について説明する
と、測定機１を使用して連続加重しながら引掻抵抗測定
を行う場合、移動台３０をスタ−ト位置に置いた後、試
験片５５を移動台３０の台部３０ａに取付け、該試験片
の厚さに合わせて回転ねじ２２を操作して引掻針２０を
上下動させ、主ア−ム１５の水平位置を調整する。次い
で、連続加重用の回転分銅５０の軸受部５２を分銅受体
４１の長溝部４３内に挿通すると共に、溝部５１を主ア
−ム１５上に位置する。該回転分銅５０は、数種類の重
量の錘を用意し、通常は０〜５０ｇ用、０〜１００ｇ
用、０〜２００ｇ用を使用して測定する。このように、
数種類の分銅を用意することにより、連続加重範囲の変
更或いは連続加重引掻抵抗測定の変更を容易に行うこと
ができる。Next, the operation of the present embodiment will be described. In the case where the scratch resistance is measured while continuously applying a load using the measuring device 1, the test piece 55 is placed after the movable table 30 is placed at the start position. Is attached to the base 30a of the moving table 30, and the rotating screw 22 is operated to move the scratching needle 20 up and down in accordance with the thickness of the test piece, thereby adjusting the horizontal position of the main arm 15. Next, the bearing 52 of the rotary weight 50 for continuous weight is inserted into the long groove 43 of the weight receiver 41, and the groove 51 is positioned on the main arm 15. The rotary weight 50 is prepared with several types of weights, usually for 0 to 50 g, 0 to 100 g.
And 0 to 200 g. in this way,
By preparing several types of weights, it is possible to easily change the continuous load range or change the continuous load scratch resistance measurement.
【００１３】例えば、０〜５０ｇの連続加重で測定する
場合、スタ−ト位置で０〜５０ｇ用の連続加重分銅を載
せると測定子に０〜５０ｇの負荷が加わるので、バラン
スア−ム１６の第１錘部２５に０〜５０ｇに相当するバ
ランス錘２６を載せ、第２錘部２７で微調整することに
より、スタ−ト時点での測定子１９の引掻針２０に加わ
る負荷を０に調整する。次いで、本体２に設けたスイッ
チ（図示せず）をＯＮしてモ−タ３４を駆動させてモ−
タの回転により歯車３６、ラック３３を介して移動台３
０をスタ−トさせる。この移動台３０の移動と共に連続
加重用の回転分銅５０は分銅受体４１が移動台３０に取
付けてあるため、移動台３０と同時に移動し始める。For example, when measuring with a continuous weight of 0 to 50 g, when a continuous weight for 0 to 50 g is placed at the start position, a load of 0 to 50 g is applied to the measuring element. A balance weight 26 corresponding to 0 to 50 g is placed on the first weight 25 and finely adjusted by the second weight 27 so that the load applied to the scratching needle 20 of the tracing stylus 19 at the start is reduced to zero. adjust. Next, a switch (not shown) provided on the main body 2 is turned on to drive the motor 34, thereby
The rotation of the moving table 3 via the gear 36 and the rack 33
0 is started. As the moving table 30 moves, the rotating weight 50 for continuous weight starts to move at the same time as the moving table 30 because the weight receiver 41 is attached to the moving table 30.
【００１４】引掻針２０の先端が、試験片上を一定速度
で前進し始めると、測定当初は主ア−ム１５のバランス
を調整してあるため、該引掻針２０に加わる垂直荷重は
小さく、その結果、引掻針２０の下端は試験片５５の膜
面上を単に摩擦している（図４）。主ア−ム１５上に載
置している回転分銅５０は経時的に測定子側の方向に移
動し、該主ア−ム１５の後端に加わる垂直荷重は順次軽
減するが、それに比例して測定子１９に加わる垂直荷重
は連続的に増加し、測定子１９の下端に取付けた引掻針
２０が試験片５５に引掻傷を作り始めて膜面に食込部５
５ａを形成しはじめる（図５図）。When the tip of the scratching needle 20 starts to advance at a constant speed on the test piece, the vertical load applied to the scratching needle 20 is small because the balance of the main arm 15 is adjusted at the beginning of the measurement. As a result, the lower end of the scratching needle 20 simply rubs on the film surface of the test piece 55 (FIG. 4). The rotating weight 50 placed on the main arm 15 moves in the direction of the tracing stylus with time, and the vertical load applied to the rear end of the main arm 15 is gradually reduced. The vertical load applied to the measuring element 19 continuously increases, and the scratching needle 20 attached to the lower end of the measuring element 19 starts making a scratch on the test piece 55, so that the bite 5
5a begins to be formed (FIG. 5).
【００１５】引掻針２０の下端は当初は試験片５５であ
る膜の表面を摩擦しているが、該引掻針は時間が経過す
るにしたがって回転分銅５０が前進することにより、該
引掻針２０に加わる垂直荷重が比例的に増加して膜面に
食い込み、摩擦抵抗と垂直荷重の増加が比例関係にある
摩擦領域から検出抵抗値の急激な変化により、摩擦抵抗
が引掻抵抗に変わった時点を感知し、それまでの摩擦抵
抗と垂直抵抗の比例関係が崩れて測定子１９に生じた抵
抗値の急激な変化を荷重変位変換器（ロ−ドセル）２１
で感知し、この信号を増幅装置（ダイナミックストレイ
ンアンプ）２３で増幅させて、この変化を例えばグラフ
として表示することにより抵抗値を適宜表示し、必要に
応じて記録することができる。Although the lower end of the scratching needle 20 initially rubs against the surface of the film as the test piece 55, the scratching needle is moved forward by the rotating weight 50 as the time elapses. The vertical load applied to the needle 20 increases proportionally and cuts into the membrane surface, and the frictional resistance changes to scratch resistance due to a sudden change in the detected resistance value from the friction region where the increase in frictional resistance and vertical load is in a proportional relationship. At which point, the proportional relationship between the frictional resistance and the vertical resistance is broken, and the sudden change in the resistance value generated on the tracing stylus 19 is detected by the load displacement transducer (load cell) 21.
This signal is amplified by an amplifying device (dynamic strain amplifier) 23, and this change is displayed as a graph, for example, so that the resistance value can be appropriately displayed and recorded as necessary.
【００１６】[0016]
【表１】 [Table 1]
【００１７】[0017]
【表２】 [Table 2]
【００１８】尚、試験片５５の表面にＡＥ（アコ−ステ
ィックエミッション）センサ−を圧着させると、移動台
３０の移動により引掻針２０の下端が試験片５５の膜面
上を滑る音によって引掻開始に発生するクラック音（超
音波）を同時に捕えることにより、膜が物体のベ−ス面
に付着している付着力評価に役立つものである。When an AE (acoustic emission) sensor is pressed against the surface of the test piece 55, the lower end of the scratching needle 20 slides on the film surface of the test piece 55 due to the movement of the movable table 30, and is pulled. Simultaneously catching the cracking sound (ultrasonic wave) generated at the start of the scratching is useful for evaluating the adhesive force of the film adhering to the base surface of the object.
【００１９】次に、一定加重による引掻抵抗測定を行う
場合は、図６に示す如く、ア−ム支持片５に取付けた可
動つまみ１１を回転させることにより、該可動つまみの
偏心回転部１１ａが主ア−ム１５の下面を押上げ、主ア
−ム１５が連結部８のピボット式の支点を中心に枢動し
て測定子１９側が上方に持ち上がる。該主ア−ム１５の
上昇と共に、該主ア−ム上に載置されている回転分銅５
０が長溝部４３内を上方に上昇し、長溝部４３の上端突
起部４４を超えると、主ア−ム１５が軸８の支点を中心
に枢動しているため回転分銅５０が長溝部４３から外
れ、係止段部４５に係止されるものである。Next, when the scratch resistance is measured under a constant load, as shown in FIG. 6, the movable knob 11 attached to the arm support piece 5 is rotated to rotate the eccentric rotating portion 11a of the movable knob. Pushes the lower surface of the main arm 15, the main arm 15 pivots about the pivot type fulcrum of the connecting portion 8, and the tracing stylus 19 side is lifted upward. As the main arm 15 rises, the rotating weight 5 placed on the main arm 15
0 rises upward in the long groove portion 43 and exceeds the upper end protrusion portion 44 of the long groove portion 43. Since the main arm 15 pivots around the fulcrum of the shaft 8, the rotating weight 50 is moved to the long groove portion 43. And is locked by the locking step 45.
【００２０】可動つまみ１１を元の位置に戻すことによ
り、主ア−ム１５も自重で元の位置に降下し、また、こ
の可動つまみ１１を操作して主ア−ム１５を持ち上げて
測定子１９に装着した引掻針２０を交換することができ
る。前記のように、回転分銅５０を分銅受４１体の係止
段部４５に係止させた後、主ア−ム１５の水平バランス
を第１、２錘部２５、２７で調節して測定子の負荷を０
にする。次いで、測定子１９の受皿１８上に所定の重さ
の分銅５７を載せる。この分銅５７の自重が測定した垂
直荷重となる。When the movable knob 11 is returned to its original position, the main arm 15 is also lowered to its original position by its own weight. Also, the movable arm 11 is operated to lift the main arm 15 so that the probe The scratching needle 20 attached to 19 can be replaced. As described above, after the rotating weight 50 is locked to the locking step 45 of the weight receiver 41, the horizontal balance of the main arm 15 is adjusted by the first and second weights 25 and 27 to measure the measuring element. Load of 0
To Next, a weight 57 having a predetermined weight is placed on the tray 18 of the tracing stylus 19. The weight of the weight 57 is the measured vertical load.
【００２１】移動台３０をスタ−ト位置に置いた後、試
験片５５を移動台３０の台部３０ａに取付け、試験片の
厚さに合わせて回転ねじ２２で測定子１９を上下動さ
せ、主ア−ム１５を水平に調整する。次いで、本体２内
のモ−タ３４を駆動させて移動台３０を一定速度で図１
の矢印方向に移動させて、測定子１９に取付けた引掻針
２０が感知した振動を、該測定子に設けた荷重変位変換
器（ロ−ドセル）２１で感知し、この信号を増幅装置
（ダイナミックストレインアンプ）２３で増幅させて、
この変化を例えばグラフとして表示することによって抵
抗値を表示し、必要に応じて記録することができる。After the movable table 30 is placed at the start position, the test piece 55 is attached to the base 30a of the movable table 30, and the measuring element 19 is moved up and down with the rotary screw 22 according to the thickness of the test piece. The main arm 15 is adjusted horizontally. Next, the motor 34 in the main body 2 is driven to move the movable table 30 at a constant speed.
, The vibration sensed by the scratching needle 20 attached to the tracing stylus 19 is sensed by a load displacement transducer (load cell) 21 provided to the tracing stylus 19, and this signal is amplified by an amplifying device ( Dynamic strain amplifier) 23,
By displaying this change as a graph, for example, the resistance value can be displayed and recorded if necessary.
【００２２】上記のように、一定荷重を測定子１９に負
荷して試験片５５を走行させることにより、下記図３、
４に示したように、塗装面または化粧板表面の膜むらを
測定することができる。As described above, by moving the test piece 55 while applying a constant load to the tracing stylus 19, the following FIG.
As shown in FIG. 4, it is possible to measure the film unevenness on the painted surface or the decorative plate surface.
【００２３】[0023]
【表３】 [Table 3]
【００２４】[0024]
【表４】 [Table 4]
【００２５】一定荷重測定用にした状態で、受皿１８に
分銅５７を順次増加させて段階的に変えることにより、
試験片５５の引掻強度が垂直荷重ｇにより表現すること
ができる。In the state where a constant load is measured, the weight 57 is sequentially increased in the pan 18 and changed stepwise,
The scratch strength of the test piece 55 can be expressed by the vertical load g.
【００２６】さらにまた、この受皿１８に任意重さの分
銅を予め載せて、前記連続加重引掻抵抗測定を行う場
合、加重する回転分銅の重さと受皿上の錘の重さとが、
連続加重範囲となる。例えば、１００ｇの分銅を受皿に
載せ、０〜２００ｇの回転分銅を使用して連続加重引掻
抵抗測定を行うと、測定加重は１００〜３００ｇとな
り、測定範囲を広げることができる。Further, when a weight having an arbitrary weight is previously placed on the pan 18 and the above-mentioned continuous weighted scratch resistance measurement is performed, the weight of the rotating weight to be weighted and the weight of the weight on the pan are set as follows.
It becomes a continuous weight range. For example, when a weight of 100 g is placed on a pan and a continuous weighted scratch resistance measurement is performed using a rotating weight of 0 to 200 g, the measurement weight becomes 100 to 300 g, and the measurement range can be expanded.
【００２７】[0027]
【発明の効果】本発明は以下のような効果を有するもの
である。 一台の測定機で連続加重引掻抵抗測定と、一定荷重引
掻抵抗測定とを行うことができるので、一台で二役を行
えるため便利であると共に経済的である。 可動つまみを作動させるだけのワンタッチで、回転分
銅を係止段部に係止させて測定方法を変更出来るため、
連続加重下での測定を一定荷重での測定に迅速に切り換
えて作業が早くなり能率的である。 連続加重引掻抵抗測定を行う場合、回転分銅を移動さ
せる分銅受体を移動台の一端に取付けて一体に移動する
ため、電気式荷重方法の如き２台のモ−タを使用しない
のでモ−タ間の調整が不要となるため便利であり、構造
が簡単であるためコストも安価にすることができて経済
的である。The present invention has the following effects. Since a continuous measurement of the scratch resistance and a measurement of the constant load scratch resistance can be performed by a single measuring machine, a single instrument can perform two functions, which is convenient and economical. With a single touch of the movable knob, the rotating weight can be locked to the locking step to change the measurement method.
The measurement under a continuous load is quickly switched to the measurement under a constant load, so that the work is quick and efficient. When performing continuous weighted scratch resistance measurement, the weight receiver for moving the rotating weight is attached to one end of the moving table and moved integrally. Therefore, two motors such as an electric load method are not used. This is convenient because there is no need for adjustment between the terminals, and the structure is simple, so that the cost can be reduced and it is economical.
【図１】本発明に係る測定機の実施例を示した正面図で
ある。FIG. 1 is a front view showing an embodiment of a measuring instrument according to the present invention.
【図２】本実施例の平面図である。FIG. 2 is a plan view of the present embodiment.
【図３】移動台の作動状態を示す要部拡大断面図であ
る。FIG. 3 is an enlarged sectional view of a main part showing an operating state of a moving table.
【図４】測定子の引掻針と試験片の接合状態を示す正面
図である。FIG. 4 is a front view showing a bonded state of a scratching needle of a tracing stylus and a test piece.
【図５】測定子の引掻針が試験片に食い込んだ状態を示
す正面図である。FIG. 5 is a front view showing a state in which a scratching needle of a tracing stylus bites into a test piece.
【図６】主ア−ムを枢動させて回転分銅を係止段部に係
止した状態の正面図である。FIG. 6 is a front view of a state in which the main arm is pivoted to lock the rotating weight on the locking step.
【図７】一定荷重での引掻抵抗測定の状態を示す正面図
である。FIG. 7 is a front view showing a state of measuring a scratch resistance under a constant load.
１ 測定機 ２ 本体 ４ 支柱 ５ ア−ム支持片 ８ 連結片 １１ 可動つまみ １５ 主ア−ム １６ バランスア−ム １８ 受皿 １９ 測定子 ２１ 荷重変位変換器 ２５ 第１錘部 ２７ 第２錘部 ３０ 移動台 ４１ 分銅受体 ４３ 長溝部 ４４ 突起部 ４５ 係止部 ５０ 回転分銅 ５５ 試験片 DESCRIPTION OF SYMBOLS 1 Measuring machine 2 Main body 4 Prop 5 Arm support piece 8 Connecting piece 11 Movable knob 15 Main arm 16 Balance arm 18 Receiving tray 19 Measuring element 21 Load displacement converter 25 First weight part 27 Second weight part 30 Moving table 41 Weight receiver 43 Long groove 44 Projection 45 Locking part 50 Rotating weight 55 Test piece
Claims (1)
持片を設け、該ア−ム支持片に枢動可能に軸支した連結
片の一端に主ア−ム、他端にバランスア−ムを夫々取付
け、該主ア−ムの先端には一定荷重測定用の分銅受皿と
荷重変位変換器とを具えた測定子を上下動可能に取付
け、バランスア−ムには前記主ア−ムの水平バランス調
整用の第１錘部と第２錘部を夫々設け、前記本体上には
前記測定子の下端が接する位置に試験片を装着する移動
台を本体内に設けたモ−タにより進退動可能に取付け、
該移動台の一端には連続加重測定用の回転分銅を転動可
能に掛止する分銅受体を装着し、該分銅受体を移動台と
一体に進退動可能に配して一定荷重測定時には前記支柱
に取付けた可動つまみで主ア−ムを枢動させて回転分銅
を分銅受体の係止部に係止可能に設け、一定荷重及び連
続加重の測定を可能にしたことを特徴とする摩擦抵抗測
定機。An arm supporting piece is provided at an upper end of a column established on a main body, a main arm is provided at one end of a connecting piece pivotally supported on the arm supporting piece, and a main arm is provided at the other end. Attach a balance arm and a measuring element having a weight pan for measuring a constant load and a load displacement converter at the end of the main arm so as to be able to move up and down, and attach the main arm to the balance arm. A first weight portion and a second weight portion for adjusting the horizontal balance of the arm are respectively provided, and a movable table on which a test piece is mounted at a position where the lower end of the tracing stylus contacts the main body is provided in the main body. -Mountable to move forward and backward by
At one end of the moving table, a weight receiver for rotatably hanging a rotating weight for continuous weight measurement is mounted, and the weight receiver is arranged so as to be able to move forward and backward integrally with the moving table, and when measuring a constant load. The main arm is pivoted by a movable knob attached to the support so that the rotating weight can be locked to the locking portion of the weight receiver so that a constant load and a continuous load can be measured. Friction resistance measuring machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34693193A JP2700997B2 (en) | 1993-12-27 | 1993-12-27 | Scratch resistance measuring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34693193A JP2700997B2 (en) | 1993-12-27 | 1993-12-27 | Scratch resistance measuring machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07190913A JPH07190913A (en) | 1995-07-28 |
| JP2700997B2 true JP2700997B2 (en) | 1998-01-21 |
Family
ID=18386790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34693193A Expired - Fee Related JP2700997B2 (en) | 1993-12-27 | 1993-12-27 | Scratch resistance measuring machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2700997B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8316689B2 (en) * | 2010-04-05 | 2012-11-27 | Korea Research Institute Of Chemical Technology | Quantitative evaluation of scratch-induced damages on polymeric and coating materials |
| JP2012168102A (en) * | 2011-02-16 | 2012-09-06 | Tokyo Institute Of Technology | Scratch testing machine and scratch testing method |
| JP7298896B2 (en) * | 2019-12-20 | 2023-06-27 | オールグッド株式会社 | Object condition measuring device |
| CN114878456A (en) * | 2022-04-15 | 2022-08-09 | 广东省医疗器械质量监督检验所 | Hundred check testing arrangement |
-
1993
- 1993-12-27 JP JP34693193A patent/JP2700997B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07190913A (en) | 1995-07-28 |
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