JPS6215280Y2 - - Google Patents
Info
- Publication number
- JPS6215280Y2 JPS6215280Y2 JP2339984U JP2339984U JPS6215280Y2 JP S6215280 Y2 JPS6215280 Y2 JP S6215280Y2 JP 2339984 U JP2339984 U JP 2339984U JP 2339984 U JP2339984 U JP 2339984U JP S6215280 Y2 JPS6215280 Y2 JP S6215280Y2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- paper
- width direction
- signal
- papermaking
- 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
- 230000005855 radiation Effects 0.000 claims description 15
- 230000004907 flux Effects 0.000 claims description 13
- 238000001514 detection method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000009529 body temperature measurement Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
Landscapes
- Paper (AREA)
Description
【考案の詳細な説明】
本考案は、抄造プラントのカレンダロールから
送出される紙の幅方向でスキヤンする温度測定部
の信号に基づき抄造紙の幅方向における品質むら
を表示する装置に関する。[Detailed Description of the Invention] The present invention relates to a device that displays quality unevenness in the width direction of papermaking based on a signal from a temperature measurement unit that scans the paper in the width direction, which is sent out from a calender roll of a papermaking plant.
従来から、抄造紙の幅方向における品質むら
（例えば、厚さむら）を表示する装置として、例
えば、放射線を応用したものがあり、フレームを
基台とし、間隙を設けて対峙し、かつ、フレーム
に沿つて走行し得るように設置する放射線源と電
離箱から成る検出部と（抄造紙は放射線源と電離
箱の間をフレームの長手方向に直交する方向で走
行する）、検出部の走行速度及び走行区間を制御
すると共に、検出部の位置信号（フレーム上にお
ける検出部の位置に対応する信号）及び検出部か
らの信号を処理して得る厚さむら信号（基準厚さ
に対する変動を示す信号）を出力する信号処理・
制御部と、この位置信号及び厚さむら信号を入力
して抄造紙の幅方向における厚さむら（プロフイ
ール）を表示する表示部を有している。 Conventionally, there are devices that use radiation as a base to display quality unevenness (for example, thickness unevenness) in the width direction of papermaking. A detection unit consisting of a radiation source and an ionization chamber installed so that it can travel along the length of the frame (papermaking runs between the radiation source and the ionization chamber in a direction perpendicular to the longitudinal direction of the frame); In addition to controlling the traveling section, the position signal of the detecting section (signal corresponding to the position of the detecting section on the frame) and the thickness unevenness signal obtained by processing the signal from the detecting section (signal indicating variation with respect to the reference thickness) ) signal processing to output
It has a control section and a display section which inputs the position signal and the thickness unevenness signal and displays the thickness unevenness (profile) in the width direction of the paper.
以上の構成において、信号処理・演算部は、検
出部を予め定めた区間往復走行させながら信号を
取入れ、所定の処理をして１スキヤン毎のデータ
を表示部に出力し紙の幅方向における厚さむらを
表示する。 In the above configuration, the signal processing/arithmetic unit takes in signals while making the detection unit reciprocate over a predetermined section, performs predetermined processing, outputs data for each scan to the display unit, and determines the thickness of the paper in the width direction. Show Samura.
しかし、従来の抄造紙の幅方向における品質む
ら表示装置にあつては、放射線を利用しているた
め、使用にあたつて放射線障害防止法に基づく使
用許可申請等をしなければならず煩らしいと言う
問題があつた。 However, since conventional quality unevenness display devices in the width direction of papermaking use radiation, they require a cumbersome application for permission based on the Radiation Hazard Prevention Act. There was a problem.
本考案は、かかる点にかんがみてなされたもの
であり、その目的は、使用にあたつてわずらわし
い手続きを必要とせず、導入設置が容易な抄造紙
の幅方向における品質むら表示装置を提供するに
ある。 The present invention was devised in view of these points, and its purpose is to provide a quality unevenness display device for paper making in the width direction that does not require troublesome procedures for use and is easy to install and install. be.
上記目的を達成する本考案の抄造紙の品質むら
表示装置の特徴は、入射窓を透過して入射する前
記抄造紙の放射を一定周期で遮断する光束チヨツ
パと、該チヨツパの裏側に配置された赤外線セン
サと、該センサおよび前記チヨツパを収納し内部
を一定温度に保つ恒温槽とから温度測定部が構成
されていることにある。 The paper quality unevenness display device of the present invention, which achieves the above object, is characterized by a luminous flux chopper that blocks the radiation of the paper that passes through the entrance window and enters at a constant period, and a luminous flux chopper placed on the back side of the chopper. The temperature measuring section is constituted by an infrared sensor and a constant temperature bath that houses the sensor and the chopper and maintains the inside at a constant temperature.
以下、本考案について図面を参照して説明す
る。 Hereinafter, the present invention will be explained with reference to the drawings.
第１図は、本考案の一実施例を示し、フレーム
１の長手方向に沿つて走行し得るように設置し、
カレンダーロール（図示せず）から送出される抄
造紙２（図の紙面に対し垂直方向で走行する）か
らの放射を検出する放射温度測定部３と（以下、
測定部３と言う）、測定部３の走行速度及び走行
区間を制御すると共に、測定部３の位置信号Ｘ
（フレーム上における測定部３の位置に対応する
信号）及び測定部３からの信号を処理して得る温
度むら信号Ｙ（基準温度に対する変動を示す信
号）を出力する信号処理・制御部４と、位置信号
Ｘ及び温度むら信号Ｙを入力し、直交する座標軸
上に各信号に基づく表示をするCRT、又は、XY
レコーダから成る表示部５とを有する。測定部３
は、第２図に示すように、入射窓１１から導入さ
れる抄造紙２の放射を（温度40〜130℃のシート
状の紙で所定の方向に走行している）一定周期で
遮断する光束チヨツパ１３と（光束チヨツパ１３
は第３図の形状をし、モータ１４により定速回転
をしている）、光束チヨツパ１３の裏側に設置す
る赤外線センサ１５及び増幅器１６から成る温度
検出部１７と、光束チヨツパ１３及び赤外線セン
サ１５を収納設置する手段であつて、温度センサ
１８、制御回路１９及びヒータ２０から成る温度
制御部２１によつて室内温度を所定の値、例え
ば、70℃に保持する恒温槽２２とを有する。そし
て、これら恒温槽２２、増幅器１６、温度制御部
２１等は、筐体２３内に収納設置されている。 FIG. 1 shows an embodiment of the present invention, which is installed so that it can run along the longitudinal direction of a frame 1,
A radiation temperature measurement unit 3 that detects radiation from the papermaking paper 2 (running in a direction perpendicular to the plane of the figure) sent out from a calender roll (not shown);
(referred to as measuring section 3), controls the traveling speed and traveling section of measuring section 3, and also controls the position signal X of measuring section 3.
(a signal corresponding to the position of the measurement unit 3 on the frame) and a signal processing/control unit 4 that outputs a temperature unevenness signal Y (signal indicating fluctuation with respect to the reference temperature) obtained by processing the signal from the measurement unit 3; CRT or XY that inputs the position signal X and temperature unevenness signal Y and displays each signal on orthogonal coordinate axes.
It has a display section 5 consisting of a recorder. Measuring part 3
As shown in Fig. 2, is a luminous flux that intercepts the radiation of papermaking 2 introduced from the entrance window 11 (a sheet of paper with a temperature of 40 to 130°C traveling in a predetermined direction) at a constant period. Chiyotsupa 13 and (luminous flux Chiyotsupa 13
(has the shape shown in FIG. 3 and is rotated at a constant speed by a motor 14), a temperature detection section 17 consisting of an infrared sensor 15 and an amplifier 16 installed on the back side of the luminous flux chopper 13, and a luminous flux chopper 13 and an infrared sensor 15. It has a constant temperature bath 22 that maintains the indoor temperature at a predetermined value, for example, 70° C., by a temperature control unit 21 comprising a temperature sensor 18, a control circuit 19, and a heater 20. The constant temperature bath 22, amplifier 16, temperature control section 21, etc. are housed in a housing 23.
以上の構成において、測定部３の光束チヨツパ
１３及び赤外線センサ１５は、恒温状態に保持さ
れる。又、赤外線センサ１５は、入射窓１１から
導入される抄造紙２の放射と光束チヨツパ１３の
放射とを交互に検出する。従つて、温度検出部１
７は、抄造紙２の温度に対応する信号と光束チヨ
ツパ１３の温度に対応する信号とを交互に出力す
る。 In the above configuration, the luminous flux chopper 13 and the infrared sensor 15 of the measuring section 3 are maintained at a constant temperature. Further, the infrared sensor 15 alternately detects the radiation from the papermaking 2 introduced through the entrance window 11 and the radiation from the luminous flux chopper 13. Therefore, temperature detection section 1
7 alternately outputs a signal corresponding to the temperature of the paper making 2 and a signal corresponding to the temperature of the luminous flux chopper 13.
一方、信号処理・制御部４は、測定部３を予め
定めた区間1 2往復走行させながら、温度検出
部１７からの信号を取入れ、光束チヨツパ１３の
温度に対応する信号を基準とした処理をして、１
スキヤン毎のデータを表示部５に出力し抄造紙２
の幅方向における温度むらを表示する（第４図参
照）。 On the other hand, the signal processing/control unit 4 receives the signal from the temperature detection unit 17 while causing the measurement unit 3 to travel back and forth over a predetermined interval 1 to 2 , and performs processing based on the signal corresponding to the temperature of the luminous flux chopper 13. Then, 1
The data for each scan is output to the display unit 5 and paper making 2
The temperature unevenness in the width direction is displayed (see Fig. 4).
この温度むらは、以下の理由により、カレンダ
ーロールから送出される抄造紙の幅方向における
厚さむら、即ち、品質むらを示すことになる。 This temperature unevenness indicates thickness unevenness, that is, quality unevenness, in the width direction of the paper produced from the calender roll for the following reason.
通常、抄造プラントにおいて、ドライパートか
ら送られ、カレンダーロールに入る抄造紙は幅方
向で均一な厚さとなつていない（坪量の分布は幅
方向で一定でない）。このため、カレンダーロー
ルにおいて（カレンダーロールは、冷風吹付け装
置により幅方向の温度分布が均一になるよう制御
されている）、紙厚の大きい部分では、ニツプ圧
が高くなり紙に対する圧縮作用が大きくなるの
で、この部分と紙厚の小さい部分とでは、レール
温度の上昇の度合が異なつてカレンダーロールの
幅方向で温度分布が不均一となる（紙厚の大きい
部分の温度の上昇が大となる）。これにより、カ
レンダーロールの径の膨張にばらつきが生じ、カ
レンダーロールの周面が幅方向で凹凸を呈する。
この凹凸によつてカレンダーロールから送出され
る抄造紙は、幅方向に厚さむらを生ずる。又、前
記の紙に対する圧縮作用の関係で、凹部の温度が
低く、凸部の温度が高くなつている。従つて、カ
レンダーロールの幅方向における温度分布とカレ
ンダーロールから送出される抄造紙の幅方向にお
ける厚さむらとは対応する。 Normally, in a papermaking plant, the paper that is sent from the dry part and enters the calender roll does not have a uniform thickness in the width direction (the distribution of basis weight is not constant in the width direction). For this reason, in the calender roll (the calender roll is controlled by a cold air blowing device so that the temperature distribution in the width direction is uniform), the nip pressure is high in the areas where the paper is thick, and the compression effect on the paper is large. Therefore, the degree of rise in rail temperature is different between this part and the part where the paper thickness is small, and the temperature distribution becomes uneven in the width direction of the calender roll (the temperature rise is large in the part where the paper thickness is large). ). This causes variations in the expansion of the diameter of the calender roll, and the circumferential surface of the calender roll exhibits unevenness in the width direction.
Due to these unevenness, the paper produced from the calender roll has uneven thickness in the width direction. Furthermore, due to the compression effect on the paper, the temperature of the concave portions is low and the temperature of the convex portions is high. Therefore, the temperature distribution in the width direction of the calender roll corresponds to the thickness unevenness in the width direction of the paper made from the calender roll.
一方、カレンダーロールから送出される抄造紙
の温度は、カレンダーロールの温度とほぼ同じと
みることができる。従つて、該抄造紙の幅方向に
おける温度分布は、抄造紙の幅方向における厚さ
むら、即ち、品質むらとみることができる。 On the other hand, the temperature of the paper produced from the calender roll can be considered to be approximately the same as the temperature of the calender roll. Therefore, the temperature distribution in the width direction of the paper can be regarded as thickness unevenness in the width direction of the paper, that is, quality unevenness.
以上説明した通り、本考案の抄造紙の幅方向に
おける品質むら表示装置によれば、放射線源を用
いないため、使用にあたつて、放射線障害防止法
に基づく使用許可申請等の煩らしい手続きを必要
とせず、導入設置が容易になる。 As explained above, the quality unevenness display device of the present invention in the width direction of papermaking does not use a radiation source, so when using it, there is no need for cumbersome procedures such as application for usage permission based on the Radiation Hazard Prevention Act. Easy to install and install.
第１図は、本考案の一実施例を示す構成図、第
２図は、第１図における温度測定部の構成図、第
３図は、第２図における光束チヨツパの構成図、
第４図は、第１図の装置による抄造紙の幅方向に
おける品質むらを示す図である。
１……フレーム、２……抄造紙、３……温度測
定部、４……信号処理・制御部、５……表示部、
１３……光束チヨツパ、１５……赤外線センサ、
１７……温度検出部、２２……恒温槽。
FIG. 1 is a configuration diagram showing an embodiment of the present invention, FIG. 2 is a configuration diagram of the temperature measuring section in FIG. 1, and FIG. 3 is a configuration diagram of the luminous flux chopper in FIG. 2.
FIG. 4 is a diagram showing quality unevenness in the width direction of paper made by the apparatus of FIG. 1. 1...Frame, 2...Paper making, 3...Temperature measurement section, 4...Signal processing/control section, 5...Display section,
13... Luminous flux chopper, 15... Infrared sensor,
17... Temperature detection unit, 22... Constant temperature chamber.
Claims (1)
る抄造紙の幅方向であらかじめ定めた区間を外部
からの制御を受けて往復スキヤンしながら抄造紙
の温度を検出する温度測定部と、該温度測定部の
スキヤン動作を制御すると共に前記温度信号を入
力し所定の処理をして得る温度むら信号および前
記温度測定部のスキヤン位置に対応する信号を出
力する手段と、前記温度むら信号およびスキヤン
位置信号を入力し直交する座標軸上に前記各信号
に基ずく表示をする手段を備え、前記温度測定部
の信号に基いて抄造紙の幅方向における品質むら
を表示する装置において、入射窓を透過して入射
する前記抄造紙の放射を一定周期で遮断する光束
チヨツパと、該チヨツパの裏側に配置され前記放
射を検出する赤外線センサと、該センサおよび前
記チヨツパを収納し内部を一定温度に保つ恒温槽
とから前記温度測定部が構成されていることを特
徴とする抄造紙の幅方向における品質むら表示装
置。 A temperature measuring section detects the temperature of the paper making paper by reciprocating a predetermined section in the width direction of the paper paper sent out from the calender roll of the paper making plant under external control, and a scanning operation of the temperature measuring section. means for inputting the temperature signal and outputting a temperature unevenness signal obtained by performing predetermined processing and a signal corresponding to the scan position of the temperature measuring section; In the apparatus for displaying the quality unevenness in the width direction of papermaking based on the signal from the temperature measuring section, the apparatus is equipped with means for displaying on the coordinate axes based on the respective signals, and displays the quality unevenness in the width direction of the papermaking based on the signal from the temperature measuring section. The temperature is measured using a luminous flux chopper that blocks papermaking radiation at regular intervals, an infrared sensor that is placed on the back side of the chopper and detects the radiation, and a constant temperature bath that houses the sensor and the chopper and keeps the inside at a constant temperature. 1. A quality unevenness display device in the width direction of papermaking paper, characterized in that the device is comprised of:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2339984U JPS60136400U (en) | 1984-02-21 | 1984-02-21 | Quality unevenness display device in the width direction of papermaking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2339984U JPS60136400U (en) | 1984-02-21 | 1984-02-21 | Quality unevenness display device in the width direction of papermaking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60136400U JPS60136400U (en) | 1985-09-10 |
| JPS6215280Y2 true JPS6215280Y2 (en) | 1987-04-17 |
Family
ID=30516594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2339984U Granted JPS60136400U (en) | 1984-02-21 | 1984-02-21 | Quality unevenness display device in the width direction of papermaking |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60136400U (en) |
-
1984
- 1984-02-21 JP JP2339984U patent/JPS60136400U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60136400U (en) | 1985-09-10 |
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