JPS6322524B2 - - Google Patents
Info
- Publication number
- JPS6322524B2 JPS6322524B2 JP13929981A JP13929981A JPS6322524B2 JP S6322524 B2 JPS6322524 B2 JP S6322524B2 JP 13929981 A JP13929981 A JP 13929981A JP 13929981 A JP13929981 A JP 13929981A JP S6322524 B2 JPS6322524 B2 JP S6322524B2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- wood
- surface roughness
- responsive member
- measuring device
- 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
- 239000002023 wood Substances 0.000 claims description 20
- 230000003746 surface roughness Effects 0.000 claims description 15
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000003673 urethanes Chemical class 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/30—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring roughness or irregularity of surfaces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
- G01B11/303—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces using photoelectric detection means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Veneer Processing And Manufacture Of Plywood (AREA)
- Manufacture Of Wood Veneers (AREA)
- Length Measuring Devices By Optical Means (AREA)
Description
【発明の詳細な説明】
この発明は木材粗面測定装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wood roughness measuring device.
原木を回転しながらその接線方向に刃物を当て
てロータリースライスすることにより薄板単板を
製造する場合、刃物の摩耗や単板切り屑のつまり
等によつて表面に面粗れが生じるという問題があ
つた。 When manufacturing thin veneer by rotary slicing by applying a knife in the tangential direction of raw wood while rotating it, there is a problem that surface roughness occurs due to wear of the knife or clogging of veneer chips. It was hot.
従来、これを検出するため、第１図および第２
図に示すように、スライスされた単板１の上方に
光源２を配置して単板１の表面に斜めに光を入射
し、単板表面の凹凸によるその反射光の濃淡を産
業用テレビカメラ（ITVカメラ）３ないしイメ
ージセンサ、レーザフライングスポツト等の光学
的検出手段で検出していた。４は原木、５は刃物
である。 Conventionally, in order to detect this, Figs.
As shown in the figure, a light source 2 is placed above the sliced veneer 1, and light is incident obliquely onto the surface of the veneer 1, and the intensity of the reflected light due to the unevenness of the veneer surface is detected by an industrial television camera. (ITV camera) 3, an image sensor, a laser flying spot, or other optical detection means. 4 is raw wood and 5 is a knife.
しかしながら、この測定装置は、木材の辺材部
と芯材部の色の違いや含水率の高低による色の違
い、および青じみ、茶じみ等のしみ類の影響など
を受けて、精度の高い測定が困難であつた。 However, this measuring device cannot be used with high accuracy due to differences in color between the sapwood and core of the wood, differences in color due to moisture content, and the influence of stains such as bluishness and brownishness. It was difficult to measure.
したがつて、この発明の目的は、測定精度を高
めることができる木材粗面測定装置を提供するこ
とである。 Therefore, an object of the present invention is to provide a wood roughness measuring device that can improve measurement accuracy.
この発明の第１の実施例を第３図に示す。すな
わち、この木材粗面測定装置は、スライスされた
薄板単板８またはスライス中の原木７の表面に押
圧されてそれらの凹凸に対応する情報を表面に記
憶した圧力応答部材１１と、この圧力応答部材１
１の情報を光学的に検出して２値化するとともに
２値化信号を面積カウントすることにより木材の
表面粗さを求める検出手段とを備えている。圧力
応答部材１１は圧力によつて着色する圧力シート
を実施例とし、また検出手段は実施例では光源１
３、ITVカメラ１４、２値化回路１５および面
積カウント回路１６で構成されている。図に沿つ
て説明すると、刃物６を原木７の接続方向に当
て、原木７を矢印の方向に回転して薄板単板８を
ロータリースライスする一方、刃物６と反対側の
位置に圧力ローラ９を原木７の表面に押当て、供
給ローラ１０から圧力シート１１を原木７と圧力
ローラ９の間に通し、通過した圧力シート１１を
ガイドローラ１２を介して光源１３の下方に移動
し、光源１３からの斜め入射光をITVカメラ１
４で受像する。カメラ１４の信号を２値化回路１
５で２値化し、その２値化信号を面積カウント回
路１６で面積カウントする。圧力シート１１はシ
ート１１に一定の圧力が加わると着色する性質を
もち、もし原木７の表面粗さが小さければ圧力シ
ート１１にかかる圧力は全面に均一にかかるた
め、圧力シート１１は全面に色が着く。逆に表面
粗度が大きければ、原木７の凹部で圧力のかから
ない部分は圧力シート１１に色が出ないためその
色の有無ないし濃淡をITVカメラ１４によりと
らえて、２値化して面積カウントすることによ
り、その面積の大小により面粗さを認識できる。
その結果、木材単板を直接測定していないので、
色や含水率等の外乱に影響されずに、精度良く面
粗さの測定が可能となつた。 A first embodiment of this invention is shown in FIG. That is, this wood roughness measuring device includes a pressure responsive member 11 that is pressed against the surface of a sliced thin veneer 8 or a log 7 being sliced and stores information corresponding to the unevenness on the surface, and a pressure responsive member 11 that stores information corresponding to the unevenness on the surface. Part 1
The present invention includes a detection means for optically detecting and binarizing the information of 1, and calculating the surface roughness of the wood by counting the area of the binarized signal. In the embodiment, the pressure responsive member 11 is a pressure sheet that is colored by pressure, and the detection means is the light source 1 in the embodiment.
3, an ITV camera 14, a binarization circuit 15, and an area counting circuit 16. To explain according to the diagram, the cutter 6 is applied to the connection direction of the log 7, the log 7 is rotated in the direction of the arrow, and the thin veneer 8 is rotary sliced, while the pressure roller 9 is placed on the opposite side of the cutter 6. The pressure sheet 11 is pressed against the surface of the log 7 and passed from the supply roller 10 between the log 7 and the pressure roller 9. The pressure sheet 11 that has passed is moved below the light source 13 via the guide roller 12, and from the light source 13 The oblique incident light of ITV camera 1
Image is received at 4. Binarization circuit 1 for signal from camera 14
5, and the area of the binarized signal is counted by an area counting circuit 16. The pressure sheet 11 has the property of becoming colored when a certain pressure is applied to the sheet 11. If the surface roughness of the log 7 is small, the pressure applied to the pressure sheet 11 will be applied uniformly over the entire surface, so the pressure sheet 11 will be colored over the entire surface. arrives. On the other hand, if the surface roughness is large, no color will appear on the pressure sheet 11 in the concave portions of the log 7 where no pressure is applied, so the presence or absence of color or shading is captured by the ITV camera 14, binarized, and the area counted. Therefore, surface roughness can be recognized by the size of the area.
As a result, since we did not directly measure the wood veneer,
Surface roughness can now be measured with high accuracy without being affected by disturbances such as color or moisture content.
この発明の第２の実施例を第４図に示す。すな
わち、この木材粗面測定装置は、第１の実施例の
圧力シート１１に代えてウレタンローラ１７を用
い、このウレタンローラ１７を直接原木７に押圧
し、ウレタンローラ１７の上位にITVカメラ１
４を配置するとともに横方向から光源１３より光
を入射させている。さらにITVカメラ１４に対
し回転方向側に消去用ローラ１８を接触させロー
ラ１７と逆回転させている。ウレタンローラ１７
は圧力をかけるとその部分が一時的に凹むように
変形する性質を有するから、押しつけられたウレ
タンローラ１７には原木７の表面の凹凸つまり面
粗さが逆に凸凹となつて現われる。このウレタン
ローラ１７の表面をITVカメラ１４等でとらえ
て（その際の照明は凹凸を見つけるためウレタン
ローラの接線方向により近い方が良い）２値化
し、面積カウントすると原木の面粗さの測定がで
きる。 A second embodiment of the invention is shown in FIG. That is, this wood roughness measuring device uses a urethane roller 17 instead of the pressure sheet 11 of the first embodiment, presses the urethane roller 17 directly against the log 7, and places an ITV camera 1 above the urethane roller 17.
4 are arranged, and light is incident from a light source 13 from the side. Further, an erasing roller 18 is brought into contact with the ITV camera 14 in the rotational direction and is rotated in the opposite direction to the roller 17. Urethane roller 17
has the property of temporarily deforming in a concave manner when pressure is applied to that part, so that the unevenness or surface roughness of the surface of the raw wood 7 appears as unevenness on the pressed urethane roller 17. The surface of this urethane roller 17 is captured by an ITV camera 14 or the like (the illumination at that time should be closer to the tangential direction of the urethane roller in order to detect unevenness), and the area is counted to measure the surface roughness of the raw wood. can.
なお、ウレタンローラと同様な性質を有するも
のであれば材料を問わない。 Note that any material may be used as long as it has properties similar to those of the urethane roller.
その他は第１の実施例と同様である。 The rest is the same as the first embodiment.
以上のように、この発明の木材粗面測定装置
は、スライスされた薄板単板またはスライス中の
原木の表面に押圧されてそれらの凹凸に対応する
情報を表面に記憶した圧力応答部材と、この圧力
応答部材の情報を光学的に検出して２値化すると
ともに２値化信号を面積カウントすることにより
木材の表面粗さを求める検出手段とを備えたた
め、従来のように木材の色違い等に影響されない
で精度良く面粗さを測定できるという効果があ
る。 As described above, the wood roughness measuring device of the present invention includes a pressure-responsive member that is pressed against the surface of a sliced thin veneer or a log being sliced and stores information corresponding to the unevenness on the surface; Since it is equipped with a detection means that optically detects and binarizes the information of the pressure-responsive member and calculates the surface roughness of the wood by counting the area of the binarized signal, it is possible to eliminate differences in the color of the wood, etc. This has the effect that surface roughness can be measured with high accuracy without being affected by
第１図は従来例の斜視図、第２図はその側面
図、第３図はこの発明の第１の実施例の側面図、
第４図は第２の実施例の側面図である。
８……薄板単板、１１……圧力応答部材を構成
する圧力シート、１３……検出手段を構成する光
源、１４……検出手段を構成するITVカメラ、
１５……検出手段を構成する２値化回路、１６…
…検出手段を構成する面積カウント回路、１７…
…圧力応答部材を構成するウレタンローラ。
FIG. 1 is a perspective view of the conventional example, FIG. 2 is a side view thereof, and FIG. 3 is a side view of the first embodiment of the present invention.
FIG. 4 is a side view of the second embodiment. 8... Thin single plate, 11... Pressure sheet constituting the pressure responsive member, 13... Light source constituting the detection means, 14... ITV camera constituting the detection means,
15...Binarization circuit constituting the detection means, 16...
...area counting circuit constituting the detection means, 17...
...A urethane roller that constitutes a pressure-responsive member.
Claims (1)
原木の表面に押圧されてそれらの凹凸に対応する
情報を表面に記憶した圧力応答部材と、この圧力
応答部材の情報を光学的に検出して２値化すると
ともに２値化信号を面積カウントすることにより
木材の表面粗さを求める検出手段とを備えた木材
粗面測定装置。 ２ 前記圧力応答部材は圧力によつて着色する圧
力シートである特許請求の範囲第１項記載の木材
粗面測定装置。 ３ 前記圧力応答部材はウレタンローラのように
木材表面の凹凸に対応して凸凹に変形し一時的に
記憶する機能をもつ特許請求の範囲第１項記載の
木材粗面測定装置。[Scope of Claims] 1. A pressure-responsive member that is pressed against the surface of a sliced thin veneer or a log being sliced and stores information corresponding to the unevenness on the surface, and an optical system that stores the information of this pressure-responsive member on its surface. 1. A wood surface roughness measuring device, which detects and binarizes the surface roughness of the wood, and calculates the surface roughness of the wood by counting the area of the binarized signal. 2. The wood surface roughness measuring device according to claim 1, wherein the pressure responsive member is a pressure sheet that is colored by pressure. 3. The wood surface roughness measuring device according to claim 1, wherein the pressure responsive member has a function of deforming into irregularities corresponding to the irregularities of the wood surface and temporarily storing the information, like a urethane roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13929981A JPS5839906A (en) | 1981-09-03 | 1981-09-03 | Measuring device for surface roughness of wooden material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13929981A JPS5839906A (en) | 1981-09-03 | 1981-09-03 | Measuring device for surface roughness of wooden material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5839906A JPS5839906A (en) | 1983-03-08 |
| JPS6322524B2 true JPS6322524B2 (en) | 1988-05-12 |
Family
ID=15242041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13929981A Granted JPS5839906A (en) | 1981-09-03 | 1981-09-03 | Measuring device for surface roughness of wooden material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5839906A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2562445B2 (en) * | 1987-02-10 | 1996-12-11 | 日立金属株式会社 | Abrasion resistant composite roll |
| EP3488942A4 (en) | 2016-09-02 | 2019-10-30 | JFE Steel Corporation | Roll outer layer material for rolling, and composite roll for rolling |
| CN113503804B (en) * | 2021-08-03 | 2023-11-28 | 湖北晟起模具科技有限公司 | Equipment and method for detecting processing deformation of aluminum alloy thick plate |
-
1981
- 1981-09-03 JP JP13929981A patent/JPS5839906A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5839906A (en) | 1983-03-08 |
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