WO2001053604A1 - Roll-changing apparatus - Google Patents
Roll-changing apparatus Download PDFInfo
- Publication number
- WO2001053604A1 WO2001053604A1 PCT/FI2001/000045 FI0100045W WO0153604A1 WO 2001053604 A1 WO2001053604 A1 WO 2001053604A1 FI 0100045 W FI0100045 W FI 0100045W WO 0153604 A1 WO0153604 A1 WO 0153604A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- roll
- changing apparatus
- lifting carriage
- calender
- vertical column
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
- D21G1/02—Rolls; Their bearings
- D21G1/0293—Provisions or constructions to facilitate the removal of the rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
Definitions
- the subject of the present invention is a roll-changing apparatus, defined in the precharacterizing clause of Claim 1, for a multi-nip calender such as a super calender.
- the apparatus includes a vertically moveable lifting platform and a conveying device for the lateral transport of resilient rolls between multi-nip calender and roll store and for the installation and removal of the lead-in or lead-out rolls, the conveying device having carriers which are firmly supported on the lifting platform and can be moved in the horizontal plane with respect to the latter in order to support the rolls.
- DE-C 43 13 475 presents a dimensioning solution which improves safety for the maintenance platform of the roll system of a super calender, it being possible for this solution to be used for the safer carrying out of inspection work and for relatively small maintenance work on the roll system.
- the solution according to the abovemen- tioned specification cannot be used as a roll-changing apparatus.
- a roll to be changed is therefore separated from the additional equipment associated with it when the roll is still located in its holder in the upright frame, and is then brought out of the upright frame onto lifting sleeves, after which the roll is transported by a conveying apparatus into the roll store and a new roll is moved into its place, to which new roll the additional equipment belonging to the roll is fixed. This roll change on average takes up five hours.
- a primary task of the present invention is to provide a new roll-changing apparatus with which the roll change can be accelerated significantly.
- the invention is based on the novel and ingenious idea that the roll and the additional equipment connected to it, such as lead-in or lead-out roll, doctor, steam box and so on, is removed as an entire assembly from the upright frame onto a lifting carriage and, together with the lifting carriage, is moved into the roll store as an assembly, from where, with the lifting carriage, a new roll including the equipment is introduced as an assembly and is fixed into the upright frame.
- the roll and the additional equipment connected to it such as lead-in or lead-out roll, doctor, steam box and so on
- a conveying means which can be moved laterally in the horizontal plane, such as a conveying platform or a similar conveying support, onto which the roll assembly can be removed from the upright frame, and which can be moved laterally together with the lifting carriage, and which can be moved down by the lifting carriage onto carriers in the roll store.
- the roll-changing time is shortened to about one fifth of the current duration, as com- pared with current changing technique, that it is not necessary at all to wait for the rolls to cool down, since all the movements can be managed during the replacement, for which reasons the machine downtime is shortened and minimized.
- Further advantages consist in the fact that reliance on the overhead crane is reduced, the maintenance frame can be constructed in a manner suitable for all process rolls, and that, by using the roll-changing solution according to the invention, the movement of the lifting carriage in the lateral direction can be implemented completely, the construction of the lifting carriage being simple.
- the roll-changing apparatus 1 shown in the figure 1 is provided for changing rolls 21,22 of the roll system of a multi-nip calender, preferably for changing rolls 22 belonging to the roll system and provided with resilient surfaces.
- the intermediate rolls are alternately thermal rolls with a chill-cast surface and polymer or paper rolls with a resilient surface.
- a so-called reversible nip is provided, in which two rolls with a resilient surface are located opposite each other.
- the roll-changing apparatus 1 includes, as upright part, a portal upright 10, which has vertical columns 11, a horizontal intermediate beam 12 connecting the vertical columns and a carrier part 13, that is to say an end carrier, provided at the lower end of both vertical columns 11.
- a lifting carriage 14 which includes sleeve-like side carriers 141 moving along on the vertical columns and a rack part 142 fixed between the side carriers, the said lifting carriage 14 moving vertically between the vertical columns.
- the roll-changing apparatus 1 according to the invention is equipped with a lifting drive 16, which is fitted to the upper part of the vertical columns 11.
- the roll-changing apparatus can be transported in the lateral direction, that is to say between multi-nip calender 2 and roll store 3, for which purpose both end carriers 13 of the portal stand 11 are equipped with conveying elements 17, which are preferably formed by wheels mounted on the end carriers and moving/rolling on guide means 18 which are present in the floor of the machine hall and are preferably formed by rails.
- the roll 22 to be changed and the additional equipment belonging to it is removed as an entire roll assembly from the upright frame 23 of the multi-nip calender 2 onto the lifting carriage 14, and moved by the lifting carriage 14 as a complete assembly into the roll store 3, from where, using the lifting carriage 14, a new roll assembly is moved as a complete roll assembly, and is fixed to the up- right frame 23 of the multi-nip calender 2.
- this is carried out by the bearing block belonging to the roll 22 to be changed and fixed to the upright frame being detached from its fixing in the upright part 23 of the cal- ender, the roll 23 to be changed, to whose bearing block a bearing block of the lead-in and/or lead-out roll 24 belongs via a supporting or intermediate carrier 25, inclusive of the associated additional parts, is removed as a complete roll assembly on the lifting carriage, which is designed to accommodate the roll 22 and the complete roll assembly including the guide roll 24, after which the roll assembly can be conveyed into the roll store 3 by the lifting carriage 14, which is equipped with a conveying means 19 to accommodate and to transport the roll assembly in the horizontal direction, in such a way that the roll assembly, taken onto the lifting carriage 14 from one direction, can be conveyed in the horizontal direction and plane to the other edge of the lifting carriage 14 for the purpose of being conveyed into the roll store 3, and vice versa.
- the lifting carriage 14 which can move vertically on the vertical columns 11 is of compact construction.
- the lifting carriage 14 includes a conveying means 15 for the roll assembly which can be moved in the horizontal direction on the lifting carriage and which, according to the invention, preferably comprises a moveable conveying platform or similar conveying sup- port.
- the conveying means 15 comprises a conveying platform or similar conveying support
- the mobility in the horizontal plane can be designed, for example, with load-bearing rollers or rolls 19 which are illustrated in the figure and which are mounted on the side-carrier parts 141 and/or the rack part 142 of the lifting carriage 14.
- the movement of the conveying means 15 can also be exe- cuted with a different solution known per se, such as by using a flexible chain or belt drive or, for example, by the mating faces of the conveying means 15 and of the rack part 14 being designed to slide in relation to each other.
- the roll assembly is easy to move with the laterally moveable conveying means 15 of the lifting carriage 14, which permits the roll assembly to be transported from the multi-nip calender 2 to the roll store 3 and vice versa.
- the roll store 3 arranged on the roll-changing apparatus 1 according to the invention is preferably designed to accommodate and to carry the moveable conveying means 15 of the lifting carriage 14 and the roll assembly located on the latter.
- the roll store has a number of horizontal carriers 31 located one above another and, between these, load-bearing racks 32 and/or load-bearing rollers 33, which are mounted on the horizontal carriers 31 and/or load-bearing racks 33. It is therefore possible for the roll assembly taken out of the multi-nip calender 2 and placed onto the conveying means 15 to be moved in a simple way from the lifting carriage 14 to the roll store 3 and vice versa.
- the roll-changing apparatus 1 also includes a lifting platform 4 which is provided for the maintenance personnel, which is fixed to the vertical columns 11 and moves vertically along the latter with its own control apparatus. Using this lifting platform, during machine operation, the state of the roll system of the calender 2 can be observed, and relatively small maintenance actions can be carried out.
- the roll-changing apparatus When the roll-changing apparatus according to the invention is used, the action of changing polymer or paper rolls in a multi-nip calender, including their equipment, between calender and storage space is carried out as follows.
- the roll-changing apparatus 1 is located in its position "A" closest to the roll system of the calender, and it is locked to the upright 23 of the calender 2.
- the lifting carriage 14 is locked mechanically at the top in the standby position, and the lifting platform 4 integrated into the portal upright 10 of the roll-changing apparatus 1 is available in front of the roll system of the calender 2 for maintenance and condition monitoring tasks.
- the roll-changing apparatus 1 is moved in the horizontal direction, on rails 18 present in the floor, into the changing position "B", with which the lifting carriage 14 can be conveyed to the roll 22 to be changed.
- the roll-changing apparatus 1 is then moved into the position "A", following which the roll 22, together with the associated additional parts or equipment, can be removed as a complete roll assembly and taken out of the calender 2 on the lifting carriage 14.
- the equipment of the roll such as the removal roll or guide roll, doctor, steam box and so on, is fixed to the roll 22 during the entire removal of the roll 22 from the calender 2 and its transport into the roll store 3, and they are removed only during the maintenance of the roll.
- the roll is therefore conveyed with the equipment, that is to say as a complete roll assembly, by the roll- changing apparatus 1 : to the roll store 3, into the position "C", and - to an empty storage space in the roll store 3, which is, for example, the rack 32.
- a new roll 22 including equipment that is to say as a complete roll assembly, is moved from the roll store 3 into the cal- ender 2 and fixed in the latter.
- the roll-changing apparatus 1 is then moved into the position "A" again.
- the roll-changing apparatus 14 is equipped with a turning apparatus 143 for the roll 21, 22, with which apparatus thermal stress damage to the roll is prevented.
- This roll turning apparatus comprises, for example, at least one circumferential turning roll or roller 143 which comes or is brought into contact with the outer circumference of the roll 21, 22 and is rotatably mounted on the side carrier parts 141 of the lifting carriage 14 or on the rack part 142, and the power apparatus driving the said roll or roller (not shown in the figure) is likewise fitted to the side carrier part 141 of the lifting carriage 14 or to the rack part 142.
- the lifting carriage 14 or the conveying platform 15 of the roll- changing apparatus 1 is equipped with one or more actuating device or devices, which positions or position the bearing housings of the roll 21,22.
- This actuating device is, for example, fitted to the conveying platform 15, the side carrier part 141 or the rack part 142.
- the roll-changing apparatus 1 is used to remove the chill- cast roll 21 from the machine and to insert it into the machine, the chill-cast rolls 21 being transported to the storage space by a machine-hall crane.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002398190A CA2398190A1 (en) | 2000-01-21 | 2001-01-19 | Roll-changing apparatus |
EP01902438A EP1248881A1 (en) | 2000-01-21 | 2001-01-19 | Roll-changing apparatus |
AU2001230271A AU2001230271A1 (en) | 2000-01-21 | 2001-01-19 | Roll-changing apparatus |
US10/181,119 US20030118427A1 (en) | 2000-01-21 | 2001-01-19 | Roll-changing apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20001001.8 | 2000-01-21 | ||
DE20001001U DE20001001U1 (en) | 2000-01-21 | 2000-01-21 | Roller changing device |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001053604A1 true WO2001053604A1 (en) | 2001-07-26 |
Family
ID=7936188
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FI2001/000045 WO2001053604A1 (en) | 2000-01-21 | 2001-01-19 | Roll-changing apparatus |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1248881A1 (en) |
AU (1) | AU2001230271A1 (en) |
CA (1) | CA2398190A1 (en) |
DE (1) | DE20001001U1 (en) |
WO (1) | WO2001053604A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003031718A1 (en) * | 2001-10-10 | 2003-04-17 | Metso Paper, Inc. | Roll replacement device |
WO2003038187A1 (en) * | 2001-10-30 | 2003-05-08 | Metso Paper, Inc. | Method for replacing an intermediate roller |
WO2003038188A1 (en) * | 2001-10-30 | 2003-05-08 | Metso Paper, Inc. | Method for replacing an intermediate roller in a set of multiple rollers |
CN113400412A (en) * | 2021-06-18 | 2021-09-17 | 苏州誉诚新材料科技有限公司 | Roll changing mechanism for cutter roll of die cutting machine and working method of roll changing mechanism |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100381219C (en) * | 2004-01-20 | 2008-04-16 | 郑红专 | Roller changer for multiple roller rolling mill |
DE202008011130U1 (en) | 2008-08-21 | 2008-11-06 | Metso Paper, Inc. | Roll-changing tool |
DE102014004637B4 (en) * | 2014-04-01 | 2017-02-23 | Kocks Technik Gmbh & Co Kg | Roll stand changing device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3122162A1 (en) * | 1980-06-23 | 1982-04-08 | Valmet Oy, 00130 Helsinki | Apparatus for exchanging calender rolls, in particular for on-machine supercalenders |
US4932827A (en) * | 1987-11-17 | 1990-06-12 | Kleinewefers Gmbh | Apparatus for exchanging rolls in calenders |
US4941607A (en) * | 1987-12-14 | 1990-07-17 | Kleinewefers Gmbh | Magazine for calender rolls |
-
2000
- 2000-01-21 DE DE20001001U patent/DE20001001U1/en not_active Expired - Lifetime
-
2001
- 2001-01-19 AU AU2001230271A patent/AU2001230271A1/en not_active Abandoned
- 2001-01-19 EP EP01902438A patent/EP1248881A1/en not_active Withdrawn
- 2001-01-19 WO PCT/FI2001/000045 patent/WO2001053604A1/en active Application Filing
- 2001-01-19 CA CA002398190A patent/CA2398190A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3122162A1 (en) * | 1980-06-23 | 1982-04-08 | Valmet Oy, 00130 Helsinki | Apparatus for exchanging calender rolls, in particular for on-machine supercalenders |
US4932827A (en) * | 1987-11-17 | 1990-06-12 | Kleinewefers Gmbh | Apparatus for exchanging rolls in calenders |
US4941607A (en) * | 1987-12-14 | 1990-07-17 | Kleinewefers Gmbh | Magazine for calender rolls |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003031718A1 (en) * | 2001-10-10 | 2003-04-17 | Metso Paper, Inc. | Roll replacement device |
WO2003038187A1 (en) * | 2001-10-30 | 2003-05-08 | Metso Paper, Inc. | Method for replacing an intermediate roller |
WO2003038188A1 (en) * | 2001-10-30 | 2003-05-08 | Metso Paper, Inc. | Method for replacing an intermediate roller in a set of multiple rollers |
CN113400412A (en) * | 2021-06-18 | 2021-09-17 | 苏州誉诚新材料科技有限公司 | Roll changing mechanism for cutter roll of die cutting machine and working method of roll changing mechanism |
CN113400412B (en) * | 2021-06-18 | 2022-06-28 | 苏州誉诚新材料科技有限公司 | Roll changing mechanism for cutter roll of die cutting machine and working method of roll changing mechanism |
Also Published As
Publication number | Publication date |
---|---|
CA2398190A1 (en) | 2001-07-26 |
DE20001001U1 (en) | 2000-03-23 |
EP1248881A1 (en) | 2002-10-16 |
AU2001230271A1 (en) | 2001-07-31 |
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