JPH03128697U

JPH03128697U -

Info

Publication number: JPH03128697U
Application number: JP3812990U
Authority: JP
Priority date: 1990-04-11
Filing date: 1990-04-11
Publication date: 1991-12-25
Anticipated expiration: 2005-04-11
Also published as: JPH0734959Y2

Description

[Brief explanation of drawings]

第１図は本考案に係るカレンダ部に於けるニツ
プ変更補助装置の実施例を示す略式側面図、第２
図はカレンダに於ける１ニツプ処理（第２ａ図）
及び２ニツプ処理（第２ｂ図）を示す略式側面図
、第３図は従来のカレンダ部を示す略式側面図で
ある。符号の説明、１…カレンダ（部）、１０…上段従
動カレンダロール、１０４…ロール回転速度検出
装置（ロータリーエンコーダ）、１２…被駆動カ
レンダロール、１２２…カレンダロール駆動装置
（駆動用電動機）、１２６…ロール回転速度検出
装置（パルスジエネレータ）、１４…下段従動カ
レンダロール、２…ドライヤ部、３…リール部、
３０…ウエブ巻取り軸駆動装置、３０２…ウエブ
巻取り速度調節用つまみ、４…ニツプレリービン
グ装置、４０，４２…リフトアーム対、４４…ロ
ールリフト本体、４４０…ロールリフトバー、６
…ロール外周速度差比演算判定表示装置、６０…
演算器、６２…判定器、６４…ロール外周速度差
比設定用つまみ、６６…表示器、ｎ１，ｎ２…加
圧ニツプ、ｐ１，ｐ２…ロール回転速度検出信号
、ｖｒ…ロール外周速度差比信号、ｖｒｏ…外周
速度差比設定信号、ｏ…オーケイ信号、ｗ…ウエ
ブ。 Fig. 1 is a schematic side view showing an embodiment of the nip change assisting device in the calendar section according to the present invention;
The figure shows 1 nip processing in the calendar (Figure 2a)
FIG. 3 is a schematic side view showing a conventional calendar section. Explanation of symbols, 1... Calendar (part), 10... Upper driven calendar roll, 104... Roll rotation speed detection device (rotary encoder), 12... Driven calendar roll, 122... Calendar roll drive device (driving electric motor), 126 ...Roll rotation speed detection device (pulse generator), 14...Lower driven calendar roll, 2...Dryer section, 3...Reel section,
30... Web winding shaft drive device, 302... Web winding speed adjustment knob, 4... Nipple releaving device, 40, 42... Lift arm pair, 44... Roll lift main body, 440... Roll lift bar, 6
...Roll outer circumference speed difference calculation judgment display device, 60...
Arithmetic unit, 62... Judgment unit, 64... Roll outer circumference speed difference ratio setting knob, 66... Display, n1, n2... Pressure nip, p1, p2... Roll rotational speed detection signal, vr... Roll outer circumference speed difference ratio signal , vro...outer circumferential speed difference ratio setting signal, o...okay signal, w...web.

Claims

[Scope of utility model registration request]

Driven calender rolls are provided between the dryer section and the reel section of a paper machine, and are arranged in upper and lower stages respectively for calendering the web that has been dried in the dryer section, and driven calendar rolls are arranged between them. a nip releaving device for forming pressure nips between each of the calender rolls and opening each nip independently; a calender roll drive device for driving the driven calender roll; In the nip change auxiliary device in a calender, the nip change auxiliary device in a calender is equipped with a web winding shaft drive device capable of changing the number of rotations for driving a web winding shaft of a reel unit in cooperation with the calender roll drive device. An upper driven calendar roll rotation speed detection device provided on the driven calendar roll, a driven calendar roll rotation speed detection device provided on the driven calendar roll, and each rotation speed detection from each calendar roll rotation speed detection device. A roll outer circumferential speed difference calculation determination display device that calculates a roll outer circumferential speed difference ratio from a signal and issues a signal when the value of the roll outer circumferential speed difference ratio becomes equal to or less than a preset value. A nip change auxiliary device in a calendar, characterized by comprising: