JP2929787B2 - Orientation measuring device for paper, non-woven fabric, etc. - Google Patents
Orientation measuring device for paper, non-woven fabric, etc.Info
- Publication number
- JP2929787B2 JP2929787B2 JP20867391A JP20867391A JP2929787B2 JP 2929787 B2 JP2929787 B2 JP 2929787B2 JP 20867391 A JP20867391 A JP 20867391A JP 20867391 A JP20867391 A JP 20867391A JP 2929787 B2 JP2929787 B2 JP 2929787B2
- Authority
- JP
- Japan
- Prior art keywords
- image processing
- fiber material
- band
- camera
- orientation direction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Treatment Of Fiber Materials (AREA)
- Knitting Machines (AREA)
- Paper (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は紙、不織布等の配向方向
計測装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for measuring the orientation of paper, nonwoven fabric, and the like.
【０００２】[0002]
【従来の技術】従来、紙や不織布等のような帯状繊維物
における繊維の配向方向は以下のようにして求められて
いた。2. Description of the Related Art Conventionally, the orientation direction of fibers in a belt-like fiber material such as paper or nonwoven fabric has been determined as follows.
【０００３】即ち、例えば図４に示す如く、帯状繊維物
１上の任意の点２を中心として放射状に拡がるよう、複
数の短冊状をした試料３を採取し、該複数の試料３の夫
々について引張り試験を行い、該引張り試験の結果に基
づき、図５、図６に示すような、帯状繊維物１の各方向
に対する引張り強度の分布を求める。That is, as shown in FIG. 4, for example, a plurality of strip-shaped samples 3 are collected so as to spread radially around an arbitrary point 2 on a strip-shaped fiber material 1, and each of the plurality of samples 3 is sampled. A tensile test is performed, and based on the result of the tensile test, distribution of tensile strength in each direction of the band-like fiber material 1 as shown in FIGS. 5 and 6 is obtained.
【０００４】帯状繊維物１は繊維の配向方向に対して引
張り強度が最も強くなるという性質を備えているので、
前記分布に基づいて最も引張り強度の強い角度（帯状繊
維物１の長手方向或いは送り方向４へ延びる線を基準線
５とした角度）、例えば図５の場合では０゜を、図６の
場合では−α゜を帯状繊維物１における繊維の配向方向
と決定する。[0004] Since the band-like fiber material 1 has the property that the tensile strength is the strongest in the direction of fiber orientation,
Based on the distribution, an angle having the highest tensile strength (an angle with the line extending in the longitudinal direction or the feed direction 4 of the belt-like fibrous material 1 as the reference line 5), for example, 0 ° in the case of FIG. 5, and 0 ° in the case of FIG. -Α ゜ is determined as the orientation direction of the fibers in the band-shaped fibrous material 1.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上記引
張り試験の結果に基づいて帯状繊維物１における繊維の
配向方向を決定する場合、以下のような問題があった。However, when the orientation direction of the fibers in the belt-like fiber material 1 is determined based on the result of the tensile test, there are the following problems.
【０００６】即ち、引張り試験は破壊検査なので、帯状
繊維物１を切断しなければならない。That is, since the tensile test is a destructive test, the band-like fiber material 1 must be cut.
【０００７】又、引張り試験は手間が掛るので、帯状繊
維物１の繊維の配向方向がわかるまでに長い時間を費や
してしまう。[0007] Further, since the tensile test is troublesome, it takes a long time until the orientation direction of the fibers of the band-like fiber material 1 is known.
【０００８】従って、帯状繊維物１の製造工程の中にお
いてオンラインで、繊維の配向方向を求めることができ
ない。Therefore, it is not possible to determine the orientation direction of the fiber online in the manufacturing process of the band-like fiber material 1.
【０００９】本発明は、上述の実情に鑑みてなしたもの
で、帯状繊維物における繊維の配向方向を、非破壊で且
つオンライン中で短時間のうちに精度良く計測し得るよ
うにした紙、不織布等の配向方向計測装置を提供するこ
とを目的とするものである。The present invention has been made in view of the above circumstances, and has been made of a paper which is capable of measuring the orientation direction of a fiber in a band-like fibrous material in a non-destructive and on-line manner in a short time. It is an object of the present invention to provide a device for measuring an orientation direction of a nonwoven fabric or the like.
【００１０】[0010]
【課題を解決するための手段】本発明は、帯状繊維物の
一側面に向けて光を照射する第一の光源と、帯状繊維物
の一側面の前記光を照射した位置を繊維の認知ができる
大きさに拡大して捉える第一のカメラと、該第一のカメ
ラに対峙する位置において帯状繊維物の他側面に向けて
光を照射する第二の光源と、帯状繊維物の他側面におけ
る前記第一のカメラで捉えた位置と同じ位置を繊維の認
知ができる大きさに拡大して捉える第二のカメラと、前
記第一及び第二のカメラで捉えた画像信号を別個に画像
処理することにより配向方向を表わす画像処理信号を求
める第一及び第二の画像処理装置と、該第一及び第二の
画像処理装置からの画像処理信号を合成して合成配向方
向を求める画像合成装置とを備えたことを特徴とする
紙、不織布等の配向方向計測装置、に係るものである。According to the present invention, there is provided a first light source for irradiating light to one side surface of a band-shaped fiber material, and a position of one side surface of the band-shaped fiber material irradiated with the light is recognized by a fiber. A first camera that is enlarged and captured to a size as possible, a second light source that irradiates light toward the other side of the band-shaped fiber material at a position facing the first camera, and A second camera that captures the same position as the position captured by the first camera in a size that allows the fiber to be recognized, and separately processes the image signals captured by the first and second cameras. A first and second image processing device for obtaining an image processing signal representing the orientation by doing, and an image synthesis device for obtaining a combined orientation direction by synthesizing the image processing signals from the first and second image processing devices Orientation of paper, non-woven fabric, etc. characterized by having Those of the direction measuring device.
【００１１】[0011]
【作用】帯状繊維物の一側面に第一の光源から光を照射
すると共に該光を照射した部分を繊維の認知ができる大
きさに拡大して第一のカメラにより捉え、同時に該第一
のカメラに対峙する位置において帯状繊維物の他側面に
第二の光源から光を照射すると共に前記第一のカメラで
捉えた部分と同じ位置を繊維の認知ができる大きさに拡
大して第二のカメラで捉え、前記第一及び第二のカメラ
で捉えた画像信号を別個の画像処理装置に導いて画像処
理することにより配向方向を表わす画像処理信号を夫々
求め、該両画像処理信号を画像合成装置に導いて合成す
ることにより合成配向方向を求める。これにより、帯状
繊維物を破壊せずに、オンライン中で短時間のうちに帯
状繊維物の繊維の配向方向を精度良く計測できる。The first light source irradiates light to one side surface of the band-shaped fiber material, and the light-irradiated portion is enlarged to a size in which the fiber can be recognized and captured by the first camera. At the position facing the camera, the other side of the band-shaped fiber material is irradiated with light from the second light source, and the same position as the portion captured by the first camera is enlarged to a size that allows the fiber to be recognized. The image signals captured by the cameras are guided to separate image processing devices by the image signals captured by the first and second cameras, and image processing is performed to obtain image processing signals representing the orientation direction. A synthetic orientation direction is obtained by guiding the light to an apparatus and performing synthesis. This makes it possible to accurately measure the orientation direction of the fibers of the band-shaped fiber material in a short time online without breaking the band-shaped fiber material.
【００１２】[0012]
【実施例】以下本発明の実施例を図面を参照しつつ説明
する。Embodiments of the present invention will be described below with reference to the drawings.
【００１３】図１及び図２は、本発明の一実施例を示す
ものであり、図１中６は紙や不織布等のような帯状繊維
物、７は帯状繊維物６の送り方向である。FIGS. 1 and 2 show one embodiment of the present invention. In FIG. 1, reference numeral 6 denotes a belt-like fiber material such as paper or nonwoven fabric, and reference numeral 7 denotes a feeding direction of the belt-like fiber material 6.
【００１４】帯状繊維物６の一側面に帯状繊維物６へ向
けて光８を照射するストロボ等の第一の光源９を配設す
ると共に、前記帯状繊維物６の一側面の前記光８を照射
した位置を繊維の認知ができる大きさに拡大して捉える
拡大レンズ１０を備えた第一のカメラ１１を設ける。A first light source 9 such as a strobe for irradiating light 8 toward the band-shaped fiber material 6 is disposed on one side surface of the band-shaped fiber material 6 and the light 8 on one side surface of the band-shaped fiber material 6 is provided. A first camera 11 having a magnifying lens 10 for enlarging the irradiated position to a size that allows the fiber to be recognized is provided.
【００１５】一方、該第一のカメラ１１に対峙する位置
において、前記帯状繊維物６の他側面に向けて光８を照
射するストロボ等の第二の光源１２を配設すると共に、
前記帯状繊維物６の他側面の前記第一のカメラ１１で捉
えた位置と同じ位置を繊維の認知ができる大きさに拡大
して捉える拡大レンズ１０を備えた第二のカメラ１３を
設ける。On the other hand, at a position facing the first camera 11, a second light source 12 such as a strobe for irradiating the light 8 toward the other side of the band-like fiber material 6 is provided.
A second camera 13 including a magnifying lens 10 for enlarging the same position as the position captured by the first camera 11 on the other side surface of the band-shaped fiber material 6 to a size that allows the fiber to be recognized is provided.
【００１６】前記第一のカメラ１１で捉えた画像信号１
４を入力して画像処理することにより一側面の繊維２０
の配向方向Ｓ１（例えば帯状繊維物６の送り方向７に対
する角度）を表わす画像処理信号１５を求める第一の画
像処理装置１６を設けると共に、前記第二のカメラ１３
で捉えた画像信号１７を入力して画像処理することによ
り他側面の繊維２０の配向方向Ｓ２を表わす画像処理信
号１８を求める第二の画像処理装置１９を設ける。前記
各カメラ１１，１３からの画像信号１４，１７は、図２
に示すようになっており、繊維２０の部分は反射する光
量が多くなり、又繊維２０と繊維２０との間は暗くなっ
て光量が減少することになるために、画像信号１４，１
７に光の強弱の方向ができることになり、よって画像処
理装置１６，１９は上記光の強さの方向から繊維２０の
配向方向Ｓ１，Ｓ２を求めるようにしている。An image signal 1 captured by the first camera 11
4 and input image processing to obtain one side fiber 20
A first image processing device 16 for obtaining an image processing signal 15 representing an orientation direction S1 (for example, an angle of the belt-like fiber material 6 with respect to the feed direction 7), and the second camera 13
A second image processing device 19 is provided which obtains an image processing signal 18 representing the orientation direction S2 of the fiber 20 on the other side by inputting the image signal 17 captured in step 2 and performing image processing. The image signals 14, 17 from the cameras 11, 13 are shown in FIG.
Since the amount of light reflected from the fiber 20 increases, and the amount of light between the fibers 20 becomes dark and the amount of light decreases, the image signals 14, 1
7, the direction of the light intensity is generated, so that the image processing devices 16 and 19 determine the orientation directions S1 and S2 of the fiber 20 from the direction of the light intensity.
【００１７】更に、前記第一及び第二の画像処理装置１
６，１９からの画像処理信号１５，１８を入力して合成
することにより帯状繊維物６の送り方向７に対する合成
配向方向Ｓを求める画像合成装置２１を設ける。この
時、前記画像処理信号１５，１８は帯状繊維物６を表裏
から見た信号なので１８０゜ずれており、従って画像合
成装置２１は、前記画像処理信号１５，１８の一方を図
２のように左右反転させて、前記画像処理信号１５，１
８の位置が合致するように信号の処理を行うようになっ
ている。Further, the first and second image processing apparatuses 1
An image synthesizing device 21 is provided which obtains a synthetic orientation direction S with respect to the feed direction 7 of the belt-like fiber material 6 by inputting and synthesizing the image processing signals 15 and 18 from 6, 6 and 19. At this time, since the image processing signals 15 and 18 are signals when the band-like fiber material 6 is viewed from the front and back, they are shifted by 180 °. Therefore, the image synthesizing device 21 changes one of the image processing signals 15 and 18 as shown in FIG. The image processing signals 15 and 1 are inverted left and right.
The signal processing is performed so that the position of 8 coincides.
【００１８】次に、作動について説明する。Next, the operation will be described.
【００１９】帯状繊維物６の一側面と他側面に第一及び
第二の光源９，１２から光８を照射した状態で、第一及
び第二のカメラ１１，１３により帯状繊維物６を表裏か
ら撮影する。この時、撮影した画像が図２のように繊維
２０を認知できる大きさ、たとえば３０〜７０倍程度に
なるように拡大レンズ１０により拡大して撮影する。With the first and second cameras 11 and 13 illuminating the belt-like fiber material 6 with the first and second light sources 9 and 12 irradiating the light 8 to one side and the other side surface of the belt-like fiber material 6. Shoot from. At this time, the photographed image is magnified by the magnifying lens 10 so that the photographed image becomes large enough to recognize the fiber 20, for example, about 30 to 70 times as shown in FIG.
【００２０】前記第一及び第二のカメラ１１，１３によ
り捉えた夫々の画像信号１４，１７は、図１及び図２に
示すように画像処理装置１６，１９により画像処理する
ことによって配向方向Ｓ１，Ｓ２を表わす画像処理信号
１５，１８を得、続いて該画像処理信号１５，１８を画
像合成装置２１に導いて合成することにより合成配向方
向Ｓを得る。この時、前記画像処理信号１５，１８の一
方を図２のように左右反転させることにより、前記帯状
繊維物６の一側面と他側面を検出した画像処理信号１
５，１８の位置が合うように信号処理を行う。The respective image signals 14 and 17 captured by the first and second cameras 11 and 13 are subjected to image processing by image processing devices 16 and 19 as shown in FIGS. , S2 representing the processed orientation signals S and S2 are obtained by guiding the image processed signals 15 and 18 to the image synthesizing device 21 and synthesizing them. At this time, by inverting one of the image processing signals 15 and 18 left and right as shown in FIG.
Signal processing is performed so that positions 5 and 18 are aligned.
【００２１】上記したように、帯状繊維物６の一側面と
他側面における繊維２０の配向方向Ｓ１，Ｓ２を別々に
画像処理することによって求め、且つ求めた一側面と他
側面の配向方向Ｓ１，Ｓ２を示す画像処理信号１５，１
８を合成して合成配向方向Ｓを求めるようにしているの
で、帯状繊維物６の繊維２０の配向方向を表裏両面から
計測することにより、配向方向の計測精度を大幅に高め
ることができる。As described above, the orientation directions S1 and S2 of the fibers 20 on one side and the other side of the belt-like fiber material 6 are obtained by separately performing image processing, and the obtained orientation directions S1 and S1 of the one side and the other side are obtained. Image processing signals 15, 1 indicating S2
Since the synthetic orientation direction S is determined by synthesizing the alignment directions 8, by measuring the orientation direction of the fiber 20 of the band-like fiber material 6 from both the front and back surfaces, the measurement accuracy of the orientation direction can be greatly increased.
【００２２】図３は前記カメラ１１，１３からの画像信
号１４，１７を夫々９画面に分けて画像処理装置１６，
１９に取込んで配向方向Ｓ１’，Ｓ２’を求めると共
に、求めた９つの配向方向Ｓ１’，Ｓ２’を合成するこ
とにより夫々１つの配向方向Ｓ１，Ｓ２を示す画像処理
信号１５，１８を求め、該画像処理信号１５，１８を画
像合成装置２１により合成して合成配向方向Ｓを得るよ
うにしている。このようにすると、大きな面積を同時に
検査することができるので、より精度の高い検査が可能
となり信頼性を向上させることができる。FIG. 3 shows that the image signals 14 and 17 from the cameras 11 and 13 are divided into nine screens, respectively.
19, the orientation directions S1 'and S2' are obtained, and the obtained nine orientation directions S1 'and S2' are combined to obtain image processing signals 15 and 18 indicating one orientation direction S1 and S2, respectively. The image processing signals 15 and 18 are combined by an image combining device 21 to obtain a combined orientation direction S. In this case, since a large area can be inspected at the same time, a more accurate inspection can be performed and reliability can be improved.
【００２３】尚、本発明は、上述の実施例にのみ限定さ
れるものではなく、本発明の要旨を逸脱しない範囲内に
おいて種々変更を加え得ることは勿論である。It should be noted that the present invention is not limited to the above-described embodiment, and it is needless to say that various changes can be made without departing from the scope of the present invention.
【００２４】[0024]
【発明の効果】上記した本発明の紙、不織布等の配向方
向計測装置によれば、帯状繊維物における繊維の配向方
向を、帯状繊維物の表裏両面に対して同時に計測し且つ
合成して求めるようにしているので、高精度に、しかも
非破壊で且つオンライン中に短時間のうちに計測するこ
とができる優れた効果を奏し得る。According to the above-described apparatus for measuring the orientation direction of paper, nonwoven fabric, etc. of the present invention, the orientation direction of the fiber in the band-like fiber material is simultaneously measured on both the front and back surfaces of the band-like fiber material and determined by synthesis. Thus, an excellent effect can be obtained in which measurement can be performed in a short time with high accuracy, non-destructively and online.
【図１】本発明の一実施例を示すブロック図である。FIG. 1 is a block diagram showing one embodiment of the present invention.
【図２】本発明における合成配向方向を求める原理を示
す略図である。FIG. 2 is a schematic view showing a principle of obtaining a synthetic orientation direction in the present invention.
【図３】図２の他の例を示す略図である。FIG. 3 is a schematic view showing another example of FIG. 2;
【図４】従来方法の一例を示す帯状繊維物の平面図であ
る。FIG. 4 is a plan view of a belt-like fiber material showing an example of a conventional method.
【図５】配向方向の一例を示すグラフである。FIG. 5 is a graph showing an example of an orientation direction.
【図６】配向方向の他の例を示すグラフである。FIG. 6 is a graph showing another example of the orientation direction.
６ 帯状繊維物 ８ 光 ９ 第一の光源 １１ 第一のカメラ １２ 第二の光源 １３ 第二のカメラ １４ 画像信号 １５ 画像処理信号 １６ 第一の画像処理装置 １７ 画像信号 １８ 画像処理信号 １９ 第二の画像処理装置 ２０ 繊維 ２１ 画像合成装置 Ｓ１ 配向方向 Ｓ２ 配向方向 Ｓ１’ 配向方向 Ｓ２’ 配向方向 Ｓ 合成配向方向 Reference Signs List 6 band fiber material 8 light 9 first light source 11 first camera 12 second light source 13 second camera 14 image signal 15 image processing signal 16 first image processing device 17 image signal 18 image processing signal 19 second Image processing apparatus 20 Fiber 21 Image synthesis apparatus S1 Orientation direction S2 Orientation direction S1 'Orientation direction S2' Orientation direction S Synthetic orientation direction
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) D21F 7/00 D06H 3/08 G01N 21/00 G01B 1/00 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 6 , DB name) D21F 7/00 D06H 3/08 G01N 21/00 G01B 1/00
Claims (1)
る第一の光源と、帯状繊維物の一側面の前記光を照射し
た位置を繊維の認知ができる大きさに拡大して捉える第
一のカメラと、該第一のカメラに対峙する位置において
帯状繊維物の他側面に向けて光を照射する第二の光源
と、帯状繊維物の他側面における前記第一のカメラで捉
えた位置と同じ位置を繊維の認知ができる大きさに拡大
して捉える第二のカメラと、前記第一及び第二のカメラ
で捉えた画像信号を別個に画像処理することにより配向
方向を表わす画像処理信号を求める第一及び第二の画像
処理装置と、該第一及び第二の画像処理装置からの画像
処理信号を合成して合成配向方向を求める画像合成装置
とを備えたことを特徴とする紙、不織布等の配向方向計
測装置。1. A first light source for irradiating light to one side surface of a band-shaped fiber material, and a position where the light is irradiated on one side surface of the band-shaped fiber material is enlarged to a size that allows the fiber to be recognized. A first camera, a second light source that irradiates light toward the other side of the web at a position facing the first camera, and captured by the first camera on the other side of the web. A second camera that captures the same position as the position by enlarging it to a size that allows the fiber to be recognized, and image processing representing the orientation direction by separately performing image processing on image signals captured by the first and second cameras. A first and a second image processing device for obtaining a signal; and an image synthesizing device for synthesizing image processing signals from the first and the second image processing devices to obtain a synthetic orientation direction. Orientation measuring device for paper, non-woven fabric, etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20867391A JP2929787B2 (en) | 1991-07-25 | 1991-07-25 | Orientation measuring device for paper, non-woven fabric, etc. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20867391A JP2929787B2 (en) | 1991-07-25 | 1991-07-25 | Orientation measuring device for paper, non-woven fabric, etc. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0533285A JPH0533285A (en) | 1993-02-09 |
| JP2929787B2 true JP2929787B2 (en) | 1999-08-03 |
Family
ID=16560167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20867391A Expired - Lifetime JP2929787B2 (en) | 1991-07-25 | 1991-07-25 | Orientation measuring device for paper, non-woven fabric, etc. |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2929787B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2720370B2 (en) * | 1993-02-26 | 1998-03-04 | 日本製紙株式会社 | Paper fiber orientation measuring method and fiber orientation measuring device |
| JP2878232B2 (en) * | 1997-03-24 | 1999-04-05 | 日本製紙株式会社 | Paper fiber orientation measuring method and fiber orientation measuring device |
| JP4600763B2 (en) * | 2005-09-20 | 2010-12-15 | 横河電機株式会社 | Orientation meter |
| JP5927869B2 (en) * | 2011-11-30 | 2016-06-01 | 東芝三菱電機産業システム株式会社 | Cutter equipment |
| FI127531B (en) | 2017-03-14 | 2018-08-15 | Stiftelsen Arcada | Measurement adapter and measurement device comprising such adapter |
-
1991
- 1991-07-25 JP JP20867391A patent/JP2929787B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0533285A (en) | 1993-02-09 |
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