JPH034677B2 - - Google Patents
Info
- Publication number
- JPH034677B2 JPH034677B2 JP10741783A JP10741783A JPH034677B2 JP H034677 B2 JPH034677 B2 JP H034677B2 JP 10741783 A JP10741783 A JP 10741783A JP 10741783 A JP10741783 A JP 10741783A JP H034677 B2 JPH034677 B2 JP H034677B2
- Authority
- JP
- Japan
- Prior art keywords
- eccentric
- shaft
- shell
- ring
- crown
- 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
- 239000010687 lubricating oil Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
Landscapes
- Paper (AREA)
- Rolls And Other Rotary Bodies (AREA)
Description
【発明の詳細な説明】
本発明はクラウン制御機構を内蔵したロールに
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a roll incorporating a crown control mechanism.
製紙工場において紙表面の滑らかさと光沢を増
すため設備されるカレンダ等には、ロール自身の
撓みから、中央部ほどニツプ力が低下するのに対
処するため、クラウンカーブを制御できるように
したロールが従来より使用されている。 Calenders, etc. installed in paper mills to increase the smoothness and gloss of paper surfaces are equipped with rolls that can control the crown curve to cope with the fact that the nip force decreases in the center due to the roll's own deflection. Traditionally used.
この種のロールとして従来より知られているの
は、スイミングロールと称されるロールである
が、この型式のものは、ロール内部に油圧室を設
けて油圧によりシエル部分を撓ませる構造であ
り、油圧ではシエルの撓み量を正確に制御するこ
とが難しいことから、紙の耳部に対するニツプ圧
がどうしても強くなるという問題がある。 A conventionally known roll of this type is a roll called a swimming roll, but this type has a structure in which a hydraulic chamber is provided inside the roll and the shell part is bent by hydraulic pressure. Since it is difficult to accurately control the amount of deflection of the shell using hydraulic pressure, there is a problem in that the nip pressure against the edge of the paper inevitably increases.
本発明は以上に鑑み、シエルをダブル偏心機構
によつて機械的に撓ませることにより、クラウン
カーブをロール全長に亘り正確に制御することを
可能にし、製品に対し幅方向に均一なニツプ圧を
与えることができるようにしたクラウン制御ロー
ルを提供するためになしたものである。 In view of the above, the present invention makes it possible to accurately control the crown curve over the entire length of the roll by mechanically deflecting the shell using a double eccentric mechanism, thereby applying uniform nip pressure to the product in the width direction. This was done in order to provide a crown control roll that can be applied.
以下本発明の実施例を図面により説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図〜第４図は本発明について示すもので、
中間部をクラウンカーブに合せD1，D2，D3の如
く段階的に偏心させた軸１を、シエル２の中空部
に貫挿し、軸１の両端を軸受３により回転自在に
支持する。軸１の各偏心部４ａ及び両端偏心部４
ａに隣接する同心段部４ｂに二つ割リング５を嵌
合し、各偏心部４ａ外側の二つ側リング５外周面
に偏心リング７を回転自在に嵌合している。各偏
心リング７の穴６中心は内側の偏心部４ａの偏心
量D1，D2，D3と同一量偏心している。 Figures 1 to 4 show the present invention,
A shaft 1 whose intermediate portion is eccentrically eccentric in stages D 1 , D 2 , and D 3 to match the crown curve is inserted into a hollow portion of a shell 2, and both ends of the shaft 1 are rotatably supported by bearings 3. Each eccentric part 4a of the shaft 1 and both end eccentric parts 4
A split ring 5 is fitted into the concentric step portion 4b adjacent to the concentric step portion 4a, and an eccentric ring 7 is rotatably fitted onto the outer peripheral surface of the two-side ring 5 on the outside of each eccentric portion 4a. The center of the hole 6 of each eccentric ring 7 is eccentric by the same amount as the eccentric amounts D 1 , D 2 , D 3 of the inner eccentric portion 4a.
同心段部４ｂ外側の二つ割リング５外周面には
同心リング７′を回転自在に嵌合している。そし
て各偏心リング７の穴６が同一側に偏心するよう
な回転角度に各偏心リング７をセツトして隣接偏
心リング相互間及び偏心リング７と同心リング
７′を連結部材８により半径方向には自由に変位
できるように連結し、各偏心リング７及び同心リ
ング７′により軸１の偏心量と同一偏心量の偏心
スリーブ９を構成する。 A concentric ring 7' is rotatably fitted to the outer peripheral surface of the split ring 5 outside the concentric step portion 4b. Then, each eccentric ring 7 is set at a rotation angle such that the hole 6 of each eccentric ring 7 is eccentric to the same side, and the connecting member 8 is used to connect the adjacent eccentric rings and between the eccentric ring 7 and the concentric ring 7' in the radial direction. The eccentric rings 7 and concentric rings 7' are connected so as to be freely displaceable, and constitute an eccentric sleeve 9 having the same eccentricity as that of the shaft 1.
又シエル２と各偏心リング７及び同心リング
７′との間にころがり軸受１０を介装し、シエル
端部の駆動プーリ１１を介してシエル駆動装置の
回転力をシエル２に伝え、シエル２を偏心スリー
ブ９の回りで連続的に回転させ得るようにしてい
る。軸１の左端に潤滑油入口１２を設け、又軸１
の右端に潤滑油出口１３を設け、潤滑油入口１２
は油路１４により左端の軸受１０に、又潤滑油出
口１３は油路１５により右端の軸受１０にそれぞ
れ連通し、潤滑油入口１２から潤滑油を強制給油
して各軸受１０を経由せしめた後、潤滑油出口１
３から抜出す方式で各軸受１０を潤滑するように
している。 Also, a rolling bearing 10 is interposed between the shell 2 and each eccentric ring 7 and concentric ring 7', and the rotational force of the shell drive device is transmitted to the shell 2 via the drive pulley 11 at the end of the shell, so that the shell 2 is driven. It can be rotated continuously around the eccentric sleeve 9. A lubricating oil inlet 12 is provided at the left end of the shaft 1, and
A lubricating oil outlet 13 is provided at the right end of the lubricating oil inlet 12.
is connected to the left end bearing 10 through an oil passage 14, and the lubricating oil outlet 13 is connected to the right end bearing 10 through an oil passage 15, and after the lubricating oil is forcibly supplied from the lubricating oil inlet 12 and passed through each bearing 10. , lubricating oil outlet 1
Each bearing 10 is lubricated using a method in which the bearing 10 is extracted from the bearing 3.
軸４と偏心スリーブ９の側にそれぞれ従動歯車
１６と駆動歯車１７から成る伝道機構を介しアク
チユエータ１８，１９により軸１と偏心スリーブ
９を反対方向に回動させることによりシエル２の
撓み量を調節しクラウンカーブを無段階に変え得
るようにしている。そして各アクチユエータごと
にパルスジエネレータ２０を設け、該パルスジエ
ネレータ２０によりアクチユエータ１８，１９の
回転数を計測し軸１と偏心リング７の回転角度を
検出できるようにしている。 The amount of deflection of the shell 2 is adjusted by rotating the shaft 1 and the eccentric sleeve 9 in opposite directions by actuators 18 and 19 via a transmission mechanism consisting of a driven gear 16 and a driving gear 17 on the sides of the shaft 4 and the eccentric sleeve 9, respectively. The crown curve can be changed steplessly. A pulse generator 20 is provided for each actuator, and the pulse generator 20 measures the rotational speed of the actuators 18 and 19 so that the rotation angle of the shaft 1 and the eccentric ring 7 can be detected.
上記構成においてクラウンカーブを制御するに
は、先ず一方のアクチユエータ１８を駆動して軸
１を必要偏心量（クラウン量）ｓに見合つた角度
にセツトする（第５図及び第６図参照）。この偏
心により、シエル２表面は、２本のロール，
の芯を結ぶ線と同方向（クラウンの方向）と直角
方向（紙の流れ方向）に対して弓なりになるの
で、今度は他方のアクチユエータ１９を作動させ
て偏心スリーブ９を軸１を偏心方向と逆に同量回
転し、紙の流れ方向の弓なりをなくす（第７図参
照）。このように軸１は回転角度によつてクラウ
ンカーブを無段階に変える機能を持ち、又偏心ス
リーブ９は回転角度によつて紙の流れ方向の弓な
りを修正する機能を持つ。 In order to control the crown curve in the above configuration, first, one of the actuators 18 is driven to set the shaft 1 at an angle commensurate with the required eccentricity (crown amount) s (see FIGS. 5 and 6). Due to this eccentricity, the surface of shell 2 has two rolls,
Since it is arched in the same direction (direction of the crown) and perpendicular direction (direction of paper flow) to the line connecting the cores of the Conversely, it rotates by the same amount to eliminate bowing in the paper flow direction (see Figure 7). In this way, the shaft 1 has the function of changing the crown curve steplessly by changing the rotation angle, and the eccentric sleeve 9 has the function of correcting the bowing of the paper in the flow direction by changing the rotation angle.
第８図は以上のクラウン制御における軸１と偏
心スリーブ９との関係、詳しくは、軸１を第３図
の位置からａ方向に90゜回転すると共に偏心リー
ブ９を第３図の位置からｂ方向に90゜回転してニ
ツプ圧線を水平として実線の状態から、軸１及び
偏心スリーブ９の回転角度を第５図〜第７図に示
す要領で変化させて最大の上反りクラウンを得る
に至るまでの軸１と偏心リング７との位置関係を
示すもので、図中Ｓは軸中央部における軸中心Ｃ
の軌跡、ｘは偏心サークル半径、Ｒは偏心リング
７の半径、δはロールの偏心量、θは軸１の回転
角、ｌはニツプ垂線、Ｐはニツプ点、C0は基準
センター（軸１の回転中心）、Ｏは偏心リング７
の中心であり、軸中央部の軸中心ＣがＣ−１の位
置から偏心サークルＳ上をＣ−２，Ｃ−３，Ｃ−
４，Ｃ−５，Ｃ−６のように変位して軸１の輪郭
がＡ−１からＡ−２，Ａ−３，Ａ−４，Ａ−５，
Ａ−６へと順次移動したとき、修正後の偏心リン
グ７の中心Ｏは軸１の前記変位に伴なつてニツプ
垂線ｌ上を０−１…０−６の如く順次上昇し、そ
の結果偏心リング７の輪郭はＢ−１…Ｂ−６の如
く変位し、ロールのクラウン量が徐々に増加して
行く関係が表わされている。 FIG. 8 shows the relationship between the shaft 1 and the eccentric sleeve 9 in the above crown control, in detail, the shaft 1 is rotated 90 degrees in the direction a from the position shown in FIG. 3, and the eccentric sleeve 9 is rotated from the position shown in FIG. From the solid line state by rotating the nip pressure line 90 degrees in the horizontal direction, change the rotation angle of the shaft 1 and the eccentric sleeve 9 as shown in Figs. 5 to 7 to obtain the maximum warped crown. This figure shows the positional relationship between the shaft 1 and the eccentric ring 7, and S in the figure indicates the shaft center C at the center of the shaft.
, x is the eccentric circle radius, R is the radius of the eccentric ring 7, δ is the eccentricity of the roll, θ is the rotation angle of shaft 1, l is the nip perpendicular, P is the nip point, C 0 is the reference center (axis 1 center of rotation), O is eccentric ring 7
The axis center C at the center of the axis moves from the position C-1 on the eccentric circle S to C-2, C-3, C-
4, C-5, C-6, and the contour of axis 1 changes from A-1 to A-2, A-3, A-4, A-5,
When moving sequentially to A-6, the center O of the corrected eccentric ring 7 rises sequentially as 0-1...0-6 on the nip perpendicular l along with the displacement of the shaft 1, and as a result, the eccentric ring 7 The outline of the ring 7 is displaced as shown in B-1...B-6, which shows a relationship in which the amount of crown of the roll gradually increases.
因みにロールの偏心量δを計算式で求めると、 δ＝２・ｘ・sinθ δMax＝２・ｘ となる。 Incidentally, when the eccentricity δ of the roll is calculated using a calculation formula, δ=2·x·sinθ δ Max =2·x.
なお本発明は前記実施例に示したもののみに限
定されるものではなく、例えばシエル駆動方式と
してプラネタリードライブ方式等を採用してもよ
いこと、カレンダロールの他に種々のロールとし
て実施できること、その他本発明の要旨を逸脱し
ない範囲で種々の変更を加え実施できること等は
勿論である。 It should be noted that the present invention is not limited to only those shown in the above embodiments, and that, for example, a planetary drive system or the like may be adopted as the shell drive system, and that it can be implemented as various rolls in addition to the calender roll. It goes without saying that various other modifications can be made without departing from the spirit of the invention.
本発明によれば前記したように偏心軸と偏心ス
リーブとの周方向の位置関係を変化させるこによ
りシエルの撓み量を調節する方式であるから、ク
ラウンカーブを無段階且つ正確に制御でき製品に
対し幅方向に均一なニツプ圧を与えることが可能
となり、製品の耳部に大きなニツプ圧が作用する
ようなことをなくせる、という優れた効果を奏し
得る。 According to the present invention, as described above, since the amount of deflection of the shell is adjusted by changing the circumferential positional relationship between the eccentric shaft and the eccentric sleeve, the crown curve can be controlled steplessly and accurately. On the other hand, it becomes possible to apply a uniform nip pressure in the width direction, and an excellent effect can be achieved in that it is possible to prevent large nip pressure from acting on the edges of the product.
第１図は本発明のクラウン制御ロールの内部を
示す断面図、第２図は第１図の−方向から見
たロール内部構造の説明用断面図、第３図は第１
図−方向から見たロール内部構造の説明用断
面図、第４図は本発明の全体の構造を示す断面
図、第５図〜第７図は本発明におけるクラウン制
御要領を示す説明図、第８図は本発明における理
論説明図である。
１……軸、２……シエル、３，１０……軸受、
４ａ……偏心部、７……偏心リング、８……連結
部材、９……偏心スリーブ、１６……従動歯車、
１７……駆動歯車、１８，１９……アクチユエー
タ。
FIG. 1 is a cross-sectional view showing the inside of the crown control roll of the present invention, FIG.
FIG. 4 is a cross-sectional view showing the overall structure of the present invention. FIGS. 5 to 7 are explanatory views showing the crown control procedure of the present invention. FIG. 8 is a theoretical explanatory diagram of the present invention. 1... shaft, 2... shell, 3, 10... bearing,
4a... Eccentric part, 7... Eccentric ring, 8... Connecting member, 9... Eccentric sleeve, 16... Driven gear,
17... Drive gear, 18, 19... Actuator.
Claims (1)
ウンカーブに合せて段階的に偏心させ、各偏心部
に偏心リングを回転自在に嵌合し、各偏心リング
とシエルとの間に軸受を介装すると共に、隣り合
う偏心リングを半径方向には互に自由に変位可能
に連結し、軸と偏心リングとの周方向の位置関係
を変化させることによりシエンの撓み量を調節す
るようにしたことを特徴とするクラウン制御ロー
ル。1. A rotatable shaft inserted inside the shell is eccentrically eccentric in stages according to the crown curve, an eccentric ring is rotatably fitted to each eccentric part, and a bearing is interposed between each eccentric ring and the shell. At the same time, adjacent eccentric rings are connected so as to be freely displaceable with respect to each other in the radial direction, and the amount of deflection of the chain is adjusted by changing the circumferential positional relationship between the shaft and the eccentric rings. Crown control roll featuring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10741783A JPS602796A (en) | 1983-06-15 | 1983-06-15 | crown control roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10741783A JPS602796A (en) | 1983-06-15 | 1983-06-15 | crown control roll |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS602796A JPS602796A (en) | 1985-01-09 |
| JPH034677B2 true JPH034677B2 (en) | 1991-01-23 |
Family
ID=14458617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10741783A Granted JPS602796A (en) | 1983-06-15 | 1983-06-15 | crown control roll |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS602796A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3769201D1 (en) * | 1986-05-21 | 1991-05-16 | Siemens Ag | SQUID MAGNETOMETER FOR A DEVICE FOR MEASURING LOW MAGNETIC FIELDS. |
| JPH0636021B2 (en) * | 1988-11-04 | 1994-05-11 | 株式会社島津製作所 | SQUID element |
-
1983
- 1983-06-15 JP JP10741783A patent/JPS602796A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS602796A (en) | 1985-01-09 |
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