EP0866167B1 - Kalander für Papier und ähnliches Bahnmaterial - Google Patents
Kalander für Papier und ähnliches Bahnmaterial Download PDFInfo
- Publication number
- EP0866167B1 EP0866167B1 EP98103708A EP98103708A EP0866167B1 EP 0866167 B1 EP0866167 B1 EP 0866167B1 EP 98103708 A EP98103708 A EP 98103708A EP 98103708 A EP98103708 A EP 98103708A EP 0866167 B1 EP0866167 B1 EP 0866167B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tension
- frame
- roll
- calender according
- rods
- 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
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
Definitions
- the invention relates to a calender for paper and similar web material, with a roll stack, of the at least four rollers with associated bearing blocks has, with a stand on the bearing blocks held or guided approximately vertically, as well as with a a load device having a support block, from above onto the bearing blocks of the top roller and / or from below onto the bearing blocks of the lower roller acts.
- Multi-roll calenders of this type are, for example, out DE 28 23 738 C2 and EP 0 732 443 A1 are known.
- the roll stack includes a variety of rollers, for example 14 pieces.
- the roll stack is replaced by a lower one Load device brought into the working position and by an upper load device with forces which, together with the weight of the rollers, weighed down Determine the compressive stress in the nips.
- the lower one Load device is supported at the foot of the stand, the top loading device on its head from.
- a support block of the lower load device supports itself at the foot of the stand, a support block of the upper loading device on its head.
- Calenders have recently become known (DE-U-295 04 034), in which the number of rolls is reduced to five to eight, but in order to achieve the same satin result, the roll temperatures are increased and the roll gaps are subjected to greater loads, for example with a medium one Compressive stress in the lowest working gap of more than 42 N / mm 2 . Because of the greater load forces, these calenders require stands with a larger dimension.
- the invention has for its object a multi-roll calender of the type described in the introduction, which is also suitable for high loads.
- this object is achieved by tie rods, at both ends of the roll along the roll stack run and their exciting one hand with a bearing block the top roller or - if available - with the Support block from its loading device and on the other hand with a bearing block of the lower roller or - if available - with the support block from its loading device are connected, to enable an expansion of the tie rods with one Exciting blocks connected to the tie rods on the stand are led.
- the stand is relieved by the tie rods.
- the of forces applied to the loading device essentially absorbed by an expansion of the tie rods.
- the stand that is still necessary to The main thing is keeping the reels in the stack due to the weights of the rollers and other components loaded.
- the tie rods can also be easily retrofitted Attach. You can therefore use existing stands also use for modern calenders where one higher stress occurs. With such a modification using the existing stand Keep conversion time and conversion costs low.
- tie rods between the roll stack and stand run. At this point is in everything Usually there is still space for the tie rods.
- tie rods with a section their length are attached to the stand, which is in Area of a bearing block attached to the stand. This is the position of the tie rod on the stand fixed without interfering with the operation becomes. At least one end of the tie rod is required for the Stretch free.
- tie rods in the area of upper exciting attached to the stand and the lower Exciting formed on a hanging part of the tie rod are. Because the tie rods are based on their own weight Maintain their vertical course are sufficient simple measures to this course of tie rods secure on the stand.
- the bearing blocks of the top roller and the upper clamping ends are arranged fixed to the stand and the lower tensioners a support block for the Wear the load device located below.
- This Load device generates the desired one hand Line load and on the other hand enables quick lowering to open the nip.
- the bearing blocks of the top roller are attached to the stand and have a holder, which is penetrated by a tie rod and a support for its upper, exciting shape shaped as a head forms.
- the tie rods therefore do not need Stand to be attached, but can also be from be held in a fixed bearing block.
- top Ends of the tie rods are attached to the stand and the bearing blocks on the side opposite the stand the top roller.
- the tie rods on the stand attached they can in turn be used as carriers fixed bearing blocks.
- the tie rods are at least partially threaded rods and at least some exciting people trained as mothers. This is useful if the effective length of the tie rod discontinued for the first time or as a result of a roller exchange or a roll reduction a change in length must be made.
- the tie rods are formed as plates that have an essential Part of the height and width of the side panels of the stand.
- Such a plate can be tight can be arranged next to the stand and takes hardly any additional Space, which is cheap for a conversion.
- You can also use thin plates because of the Width of the stator side parts is relatively large Reach cross sections so that the tension in the Plates does not exceed the permissible limit values.
- the exciting features of the plate can also be easily realized. So the upper exciting between Stator and bearing blocks of the top roller arranged and be firmly connected to both. Furthermore, the lower tensioning firmly with the lower loading device supporting support block connected his.
- a vertical longitudinal groove of the support block receives the plate and a wedge partially a transverse groove in the support block and partly one Cross groove penetrated in the plate.
- brackets are guided on the stand. These brackets need to be on the one hand a movement of the tie rods for the purpose of stretching allow, but on the other hand should buckle or the like. prevent the tie rod.
- brackets through in existing guides of the stand gripping rear grip strips attached to the tie rod educated. But there are also other design features considered, such as stands and tie rods encompassing parentheses.
- the roll stack is hard and having soft rollers and that the soft rollers wear a cover made of elastic plastic. Because such Plastic covers only require minimal grinding, can use tie rods without length adjustment be, for example, the mentioned plates.
- the multi-roll calender 1 of FIGS. 1 and 2 has one Stand 2, one side part in the drawing is visible.
- a roll stack 3 has an upper roll 4, a lower roller 5 and in between eight intermediate rollers 6 on. The number of rollers in the stack can also be larger and preferably less than ten.
- the roller of the stack 103 has an elastic cover. The rollers are supported by a bearing block at each end held.
- the bearing blocks 7 of the top roller 4 are attached to the upper end of the stand 2, for example by screws and terminal strips.
- the bearing blocks 9 of the Bottom roller 5 are held vertically slidably on the stand 2.
- the bearing blocks 10 of the intermediate rollers 6 are each via a lever 11 with a fixed on the stand Pivotal point 12 connected. There is at both roller ends a loading device 13 with a support block 14. It consists of hydraulic piston-cylinder units, with which the lower roller 5 and the intermediate rollers 6 in the roller stack pressed up against the upper roller 4 and opening the nips quickly can be lowered.
- a tie rod 15 in shape a threaded rod at the ends, the at the upper end 16 a trained as a mother Head 17 and a nut 19 at the lower end 18 wearing.
- the rod-shaped tie rod 15 penetrates one Bracket 20 on the bearing block 7 of the top roller 4, the Top of the bracket 20 a support surface 21 for the mother 17 forms.
- the upper end of the tie rod 15 is therefore fixed on stand 2. All of the rest Tie rod 15 hangs down freely and can therefore when up by the loading device 13 directed pressure is exerted on the roll stack, stretch down.
- the support block 14 is at the usual Guide 22 of the stand 2 guided vertically. The Tie rod 15 maintains its vertical position in all operating conditions at.
- the tie rods 115 have the shape of a plate that extends over one substantial part of the height of the stand 102 and above a substantial part of the width of its side parts extend.
- the upper clamping end 116 is by means of Screws 123 attached to the upper end 108 of the stand 102, while the rest of the tie rod 115 is free hangs down.
- On the opposite of the stand 102 Side is the bearing block 107 of the top roller 104 attached to tie rod 115 by means of screws 124.
- the lower clamping end 118 is by means of a wedge 125 connected to the support block 114.
- the tie rod 115 extends through a longitudinal groove 126 of the support block 114.
- the wedge 125 extends partially through a Cross groove 127 in the tie rod 115 and partly through a Cross groove 128 in the support block 114.
- a bracket 129 is formed by grip strips, which on protrusions 130 of the support block 114 are screwed and the overlap the usual guide 122 of the stand 102.
- the Brackets 129 leave the tie rod 115 as much Play so that he can stretch freely when he is straining is.
Landscapes
- Paper (AREA)
- Treatment Of Fiber Materials (AREA)
Description
- Fig. 1
- eine schematische Seitenansicht eines erfindungsgemäßen Mehrwalzen-Kalanders,
- Fig. 2
- eine Teildraufsicht auf den Kalander der Fig. 1,
- Fig. 3
- eine schematische Seitenansicht einer zweiten Ausführungsform,
- Fig. 4
- einen Schnitt längs der Linie A-A in Fig. 3 und
- Fig. 5
- das untere Spannende eines plattenförmigen Zugankers in perspektivischer Darstellung.
Claims (13)
- Kalander für Papier und ähnliches Bahnmaterial, mit einem Walzenstapel (3; 103), der mindestens vier Walzen (4, 5, 6; 104; 105, 106) mit zugehörigen Lagerblöcken (7, 9, 10; 107, 109, 110) aufweist, mit einem Ständer (2; 202), an dem die Lagerblöcke gehalten oder etwa vertikal geführt sind, sowie mit einer einen Stützblock (14; 114) aufweisenden Belastungsvorrichtung (13; 113), die von oben auf die Lagerblöcke (7; 107) der Oberwalze (4; 104) und/oder von unten auf die Lagerblöcke (9; 109) der Unterwalze (5, 105) wirkt, gekennzeichnet durch Zuganker (15; 115), die an beiden Walzenenden längs des Walzenstapels (3; 103) verlaufen und deren Spannenden (16, 18; 116, 118) einerseits mit einem Lagerblock (7; 107) der Oberwalze (4; 104) oder - wenn vorhanden - mit dem Stützblock von dessen Belastungsvorrichtung und andererseits mit einem Lagerblock (9; 109) der Unterwalze (5; 105) oder - wenn vorhanden - mit dem Stützblock (14; 114) von dessen Belastungsvorrichtung (13; 113) verbunden sind, wobei zur Ermöglichung einer Dehnung der Zuganker (15; 115) die mit dem einen Spannende der Zuganker verbundenen Stützblöcke (14; 114) am Ständer (2; 102) geführt sind. Stützb
- Kalander nach Anspruch 1, dadurch gekennzeichnet, daß die Zuganker (15; 115) zwischen Walzenstapel (3; 103) und Ständer (2; 102) verlaufen.
- Kalander nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Zuganker (15; 115) mit einem Abschnitt ihrer Länge am Ständer (2; 102) angebracht sind, der sich im Bereich eines am Ständer befestigten Lagerblocks (7; 107) befindet.
- Kalander nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Zuganker (15; 115) im Bereich der oberen Spannenden (16; 116) am Ständer (2; 102) angebracht und die unteren Spannenden (18; 118) an einem hängenden Teil der Zuganker ausgebildet sind.
- Kalander nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Lagerblöcke (7; 107) der Oberwalze (4; 104) und die oberen Spannenden (16; 116) ständerfest angeordnet sind und die unteren Spannenden (18; 118) einen Stützblock (14; 114) für die unten angeordnete Belastungsvorrichtung (13; 113) tragen.
- Kalander nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Lagerblöcke (7) der Oberwalze (4) am Ständer (2) befestigt sind und eine Halterung (20) aufweisen, die von je einem Zuganker (15) durchsetzt ist und eine Auflage (21) für dessen als Kopf geformtes oberes Spannende (16) bildet.
- Kalander nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die oberen Spannenden (118) der Zuganker (115) am Ständer (102) befestigt sind und auf der dem Ständer gegenüberliegenden Seite die Lagerblöcke (107) der Oberwalze (104) tragen.
- Kalander nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Zuganker (15) als zumindest stellenweise mit Gewinde versehene Stangen und zumindest einige Spannenden (16, 18) als Mutter ausgebildet sind.
- Kalander nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Zuganker (115) als Platten ausgebildet sind, die sich über einen wesentlichen Teil der Höhe und der Breite der Seitenteile des Ständers (102) erstrecken.
- Kalander nach Anspruch 5 und 9, dadurch gekennzeichnet, daß eine vertikale Längsnut (126) des Stützblocks (114) die Platte aufnimmt und ein Keil (125) teilweise eine Quernut (127) im Stützblock (114) und teilweise eine Quernut (128) in der Platte durchsetzt.
- Kalander nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Zuganker (115) durch Halterungen (126, 127) am Ständer (102) geführt sind.
- Kalander nach Anspruch 11, dadurch gekennzeichnet, daß die Halterungen (126) durch in vorhandene Führungen (122) des Ständers (102) greifende, am Zuganker (115) angebrachte Hintergriffleisten gebildet sind.
- Kalander nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß der Walzenstapel (3; 103) harte und weiche Walzen aufweist und daß die weichen Walzen (110') einen Bezug (129) aus elastischem Kunststoff tragen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19711241 | 1997-03-18 | ||
DE19711241A DE19711241C2 (de) | 1997-03-18 | 1997-03-18 | Kalander für Papier und ähnliches Bahnmaterial |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0866167A1 EP0866167A1 (de) | 1998-09-23 |
EP0866167B1 true EP0866167B1 (de) | 2002-06-12 |
Family
ID=7823769
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98103708A Expired - Lifetime EP0866167B1 (de) | 1997-03-18 | 1998-03-03 | Kalander für Papier und ähnliches Bahnmaterial |
Country Status (3)
Country | Link |
---|---|
US (1) | US5988055A (de) |
EP (1) | EP0866167B1 (de) |
DE (2) | DE19711241C2 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19820087B4 (de) * | 1998-05-06 | 2005-06-23 | Eduard Küsters Maschinenfabrik GmbH & Co. KG | Kalander für die Behandlung einer Warenbahn |
FI114405B (fi) * | 1999-09-24 | 2004-10-15 | Metso Paper Inc | Kalanteri ja menetelmä paperi- tai kartonkirainan kalanteroimiseksi |
US6578473B1 (en) * | 2001-12-20 | 2003-06-17 | Metso Paper, Inc. | Calender with adjustable roll supports |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3921514A (en) * | 1973-02-08 | 1975-11-25 | Escher Wyss Ltd | Rolling mill |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US509930A (en) * | 1893-12-05 | Machine | ||
DE16963C (de) * | W. R. SCHÜRMANN in Düsseldorf | Neuerungen an Roll- und Bogencalandern | ||
US3369483A (en) * | 1965-04-14 | 1968-02-20 | Kleinewefers Soehne J | Adjusting device for fast venting and roller fine adjustment, especially for paper satining calenders |
DE2823738C2 (de) * | 1978-05-31 | 1985-11-07 | Kleinewefers Gmbh, 4150 Krefeld | Verfahren zum Einebnen (Glätten) einer Papierbahn |
US4501197A (en) * | 1983-10-19 | 1985-02-26 | Beloit Corporation | Supercalender edge nip relieving |
US4510859A (en) * | 1984-01-23 | 1985-04-16 | Beloit Corporation | Supercalender NIP relieving arrangement |
JPS6290394A (ja) * | 1985-10-14 | 1987-04-24 | 石川島播磨重工業株式会社 | 多段式ス−パ−カレンダの通紙方法 |
DE3711334A1 (de) * | 1987-04-03 | 1988-10-13 | Escher Wyss Gmbh | Vorrichtung zur fuehrung der walzen eines im wesentlichen vertikalen kalanders |
DE4231472C2 (de) * | 1991-10-10 | 1996-10-31 | Voith Gmbh J M | Walzenpresse zum Pressen einer laufenden Bahn, insbesondere einer Papierbahn |
DE29504034U1 (de) * | 1995-03-09 | 1995-05-04 | Voith Sulzer Finishing GmbH, 47803 Krefeld | Kalander für die zweiseitige Behandlung einer Papierbahn |
DE19508352B4 (de) * | 1995-03-09 | 2005-07-21 | Voith Paper Patent Gmbh | Kalander für die Behandlung einer Papierbahn |
-
1997
- 1997-03-18 DE DE19711241A patent/DE19711241C2/de not_active Expired - Fee Related
-
1998
- 1998-03-03 EP EP98103708A patent/EP0866167B1/de not_active Expired - Lifetime
- 1998-03-03 DE DE59804381T patent/DE59804381D1/de not_active Expired - Lifetime
- 1998-03-13 US US09/041,971 patent/US5988055A/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3921514A (en) * | 1973-02-08 | 1975-11-25 | Escher Wyss Ltd | Rolling mill |
Also Published As
Publication number | Publication date |
---|---|
DE19711241A1 (de) | 1998-09-24 |
US5988055A (en) | 1999-11-23 |
DE19711241C2 (de) | 2002-08-29 |
EP0866167A1 (de) | 1998-09-23 |
DE59804381D1 (de) | 2002-07-18 |
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