EP1201429A2 - Verfahren und Vorrichtung zum Kühlen einer Materialbahn - Google Patents
Verfahren und Vorrichtung zum Kühlen einer Materialbahn Download PDFInfo
- Publication number
- EP1201429A2 EP1201429A2 EP01123320A EP01123320A EP1201429A2 EP 1201429 A2 EP1201429 A2 EP 1201429A2 EP 01123320 A EP01123320 A EP 01123320A EP 01123320 A EP01123320 A EP 01123320A EP 1201429 A2 EP1201429 A2 EP 1201429A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling
- web
- roller
- material web
- roll stand
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
- B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
- B41F23/0483—Drying combined with cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
- B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
- B41F23/0476—Cooling
- B41F23/0479—Cooling using chill rolls
Definitions
- the invention relates to a method and an apparatus for cooling a Material web, in particular a printed paper web, according to the preamble of Claim 1 and Claim 4.
- Cooling units in particular in printing machines, are known from the prior art. are known, which are used to cool a previously heated in a heating device
- Material web are used.
- it is known to be one-sided or multi-sided, for example, multi-color printed material web, in particular a paper web after leaving the printing units by a dryer, for example one Hot air dryer, in which the material web is heated to 100 to 150 ° Celsius is, whereby the solvents contained in the ink evaporate and over a Trigger system. After leaving the dryer, the material web shows but still a fairly high temperature of about 100 ° C, and the printing ink on the Surface of the material web has at this temperature due to the melted Resins of the printing ink have a certain stickiness.
- the material web now becomes another Cooling and to reduce the stickiness of the printing ink before running into one Folder a chill roll stand with several coolant flows Cooling rollers fed.
- the material web is guided around cooling rolls and gives off its heat to the jacket of the cooled cooling rolls. Because in web offset printing with heat set drying the moisture of the paper due to the action of high Temperatures in the dryer is greatly reduced, this dehydration leads to a Reinforcement of the tension waves typical in web offset printing, which then cool down the material web in the cooling roller stand can be fixed by curing the printing ink.
- These tension waves which form transverse to the direction of web travel of the material web, significantly reduce the quality of the printed products.
- DE 31 28 430 C2 describes a rotary printing press with a dryer subsequent cooling unit known, which reduce the ripple of the printed products should.
- the cooling unit has cooling rollers which can be adjusted to one another in order to press carrier web running through them to a press calendering process undergo.
- the cooling rolls are provided with an adjustment device which generates the necessary contact pressure to line up the cooling rollers in this way can that the ripple is "ironed out" of the printed products.
- Cooling rollers are arranged offset from one another and the Material web is guided around the cooling rollers in such a way that the material web the cooling rollers partially looped around and between the cooling rollers in a straight line running free distances is moved.
- EP 0 627 311 B1 describes a web cooling device, which cooling rolls and humidification devices and which is arranged next to a dryer, so that the material web coming out of the dryer through a slit into the inside of the Web cooling device runs in. The material web is then between the Cooling rolls in the web cooling device on a long, straight and free Distance traveled.
- the invention is accordingly based on the object of a method for cooling a To create material web through which tensile waves in the material web prevented or at least be reduced. Furthermore, it is an object of the present invention To create procedures which the cooling of the web and the prevention or the Reduction of tension waves in the material web in a simple and inexpensive way allows.
- Another object of the present invention is an apparatus for Cooling a web of material that allows the printer to easily and inexpensive way to prevent or at least prevent tensile waves in the material web to reduce.
- the method according to the invention for cooling a material web, in particular one printed paper web, showing the process steps moving the web of material a web path, partial looping of a cooling roller with the material web and Cooling the material web by means of the cooling roll is characterized by the following process steps: Partially looping around one of the cooling rolls spaced upstream or downstream roller with the material web and moving the material web from the cooling roll to the upstream or downstream roll in the way that the path is essentially meandering.
- the material web is on a substantially meandering path led around the two rollers, so that the web path according to the invention essentially consists of the wrapping sections of the material web on the two rollers.
- the material web is essentially constantly in contact with the surface of a material Roller, so that the curing of the ink primarily on the curved web sections happens along the rollers, causing tensile wave formation in the web is prevented according to the invention.
- the upstream or downstream roller can also be in the form of a roll be realized, but in the following we shall only speak of one roller and thus both a roller and a roll are meant.
- the material web can advantageously, for example, on an in Essentially always curved path to be moved.
- the result is constant Curvature of the path from the wrapping sections of the material web with the wrapped rollers, with positive and negative curvatures of the material web can alternate along the path.
- Straight lines between the rollers around which the material web is guided can thereby in can be prevented in an advantageous manner, which also causes an uncontrolled solidification the printing ink and thereby fixing the tension waves in the material web is prevented.
- the material web in the Essentially directly from the chill roll to the upstream or downstream Roller is moved.
- the material web can thus, for example, a first web section have, in which it wraps around the cooling roller and a second web section which immediately follows the first path section and which one Wrapping section around the downstream roller corresponds.
- the transition area from the first loop section to the second loop section be such that a first, for example positive curvature, continuously into a second, for example, negative curvature passes without going between the two sections there is a noteworthy straight line section.
- the device according to the invention for cooling a material web, in particular one printed paper web includes a chill roll, which of the on a web path moving material web is partially wrapped. It is characterized in that the device comprises a roller arranged upstream or downstream of the cooling roller, which is partially wrapped around by the material web and which in this way to the Cooling roller is arranged spaced that the material web from the cooling roller to the upstream or downstream roller is moved such that the web path in Mainly meandering.
- the cooling roller and the upstream or Subordinate roller enables the web of material on an essentially meandering path around the rollers so that the hardening of the Ink happens during the contact of the material web with one of the two rollers and an uncontrolled hardening of the printing ink and fixing caused thereby the tension waves in the material web on free paths between the rollers is prevented, or at least reduced.
- the upstream or downstream roller Cooling roller or a deflection roller is. Moving the material web on one Path along two successively arranged cooling rolls increased in advantageously the length of the web section on which the web is cooled and at the same time running on a curved path, which is preventing draft waves additionally supported. If the material web is one or more before or after the chill roll Deflection roller guided around, so this can also advantageously to the Cooling roller arranged that the web of material on a substantially meandering path is moved.
- the diameter of the cooling roll is less than 300 mm, especially in the area between 100 mm and 250 mm to choose.
- the space required is advantageously reduced, on the other hand, due to the small radius of the cooling rolls, the contact pressure or the Surface pressure of the material web on the chill rolls increased and thereby the Heat transfer from the material web to the chill roll improved.
- the space required can also be advantageous Way be reduced.
- cooling rolls of the prior art have usually diameters larger than 400 mm and accordingly require more Room.
- the cooling roller it is also advantageously possible for the cooling roller to have a jacket and a comprises a cavity delimited by the jacket, the cavity being surrounded by a Coolant, in particular cooled water flows through. Since the chill roll in its interior preferably has no structured structure, but only one Cavity, the weight of the cooling roller is advantageously reduced. As from the Applicant was found, the combination of a cooling roller performs without any special internal structure, such as special inserts for circulating the coolant, in Combination with the choice of a small diameter for particularly light and reliably cooling cooling rollers and thereby to help prevent them of draft waves.
- the upstream and / or downstream roller of the cooling roller in the web running direction essentially directly upstream or downstream be subordinate.
- the upstream or downstream roller can thus advantageously be arranged to the cooling roller such that the paper transition without an intermediate area directly from the upstream roller to the cooling roller and / or from the cooling roller to the downstream roller takes place, but the two rollers are not placed against each other have to be. With this special type of arrangement, the occupied space of the two rollers can be further reduced.
- the cooling roller is a free-running roller.
- the cooling roller can advantageously only through the between the web and the cooling roller prevailing frictional forces are rotated, so that Drive devices of any kind are dispensed with, thereby reducing energy and costs can be saved.
- the cooling roll can be a driven one, in particular a driven one individually driven roller is.
- the driven chill roll can be used as Pull roller are used, by means of which a tension in the material web maintained, created or changed.
- the cooling roller used as a pull roller can also convey the material web through the dryer, for example Example by a hot air dryer.
- the tension can advantageously be such be controlled that the formation of draft waves, especially by too high Tension is prevented.
- the device comprises a plurality of cooling rolls arranged one after the other, which the Material web partially wraps around each, and which are arranged such that the Path along the cooling rollers runs essentially in a meandering shape.
- the material web may be stacked on top of each other by a larger number following cooling rolls, for example three to seven successive cooling rolls, pass around so that the web of material before it is the last of the consecutive arranged cooling rollers, completely cooled and the ink sufficient is cured to prevent the formation of draft waves on the downstream of the cooling rolls To prevent train path.
- the material web can then, for example, after the last one Cooling roller can be moved on a rectilinearly extending web path without that tensile waves are formed in the material web.
- Another embodiment of the invention comprises a cooling roll stand, with a as described above device for cooling a material web, in particular one printed paper web.
- the cooling roll stand has a first cooling roll and a has first conditioning unit, wherein the first conditioning unit preferably on a first web side of the material web and in the web running direction in front of the first cooling roll is arranged.
- the first cooling roller can be the first cooling roller in the web running direction of the cooling roll stand, which is wrapped in the material web.
- the cooling roll stand can have a second cooling roll and a second conditioning unit have, the second conditioning unit preferably on a second web side and is arranged in the web running direction in front of the second cooling roller. It is for Example possible that the second cooling roller seen the second in the web running direction Cooling roller of the cooling roller stand, and thus the first cooling roller in the web running direction is subordinate.
- first and second Conditioning unit silicone application rollers for applying a silicone oil emulsion to the Material web are, the first conditioning unit in the web running direction before the Inlet roller of the cooling roller stand and the second conditioning unit in Web running direction in front of the cooling roller arranged downstream of the infeed roller are arranged.
- the Arranging conditioning units in the chill roll stand can advantageously do this Condensation of mineral oil vapors from the material adhering to the material web Air boundary layer on the chill rolls can be prevented, which additionally adds to the problem the ink build-up on the cooling rollers is avoided.
- This will make it more advantageous Ensures that the surfaces of the cooling rollers remain clean and flat, so that there is an undisturbed heat transfer from the material web to the chill roll can and the material web is sufficiently cooled when wrapping around the cooling rolls, before moving along a free straight path along the railway path. In this way, in addition, the formation of tension waves and their Fixation in the material web prevented.
- the cooling roll stand is one Subordinate dryer, in particular in such a way that fresh air through the cooling roll stand in the dryer can be pulled or blown.
- the cooling roll stand preferably substantially immediately after the dryer and in a distance to the dryer that is less than 10 cm, for example, the in The dryer requires fresh air to be used at the same time as the chill roll stand temper and escape from the material web by post-evaporation To convey solvent vapors into the dryer.
- the advantageous temperature control of the cooling roll stand the prevention of draft waves is also positive influenced, which also gives the printer the advantage that the Solvent vapors do not escape from the chill roll stand in an uncontrolled manner Pollute breathing air in the pressure chamber. Instead, the fresh air is advantageous sucked into the dryer or blown together with the solvent vapors and preferably fed there directly or indirectly to the combustion process.
- the cooling roll stand with the dryer forms a unit, for example a structural unit or one by one common housing emerging unit. This will advantageously Supply of fresh air for the dryer ensured through the chill roll stand, what the simultaneous temperature control of the chill roll level and the associated Prevents the formation of draft waves, and as an additional benefit Reduction of the footprint for the dryer and the cooling roll stand.
- the cooling roll stand has a web tension measuring unit, the web tension measuring unit for determining the web tension or Detection of a web break can comprise a cooling roller and sensor means.
- the stake an example deflectable cooling roll in the web tension measuring unit, the Deflection of the cooling roll with varying web tension from a sensor to Example of a piezo element that is detected initially leads to in an advantageous manner Saving additional building materials in the web tension measuring unit.
- the integrated in the chill roll stand Web tension measuring device by means of a control and / or connected to it Control device a desired web tension within the chill roll level maintains, whereby the pressing force of the material web against the cooling rollers inside of the looping sections of the path has a desired size so that the Heat transfer from the material web to the chill roll in one for the printing process advantageous range.
- This ensures that the material web after the Leaving the last chill roll of the chill roll group has cooled sufficiently and the printing ink on the material web has hardened sufficiently so that it is on the subsequent, for example, straight running free path paths to a fixation comes from uncontrolled draft waves.
- the chill roll stand can be a register measuring unit, which in particular a CCD camera may include which to monitor the color register is used.
- a register measuring unit in the chill roll stand on the one hand a further space saving is possible, on the other hand results from the Combination of the register measuring device with the structure of the invention Cooling roll stand, which ensures that draft waves within the material web a very reliable color register control can be prevented. This is due to the fact that by preventing the tensile waves in the material web by means of the camera the flat surface of the material web that is not disturbed by waves are recorded without errors and subsequently by means of a control and / or Control device the color register can be set.
- the cooling roll stand can comprise a web edge control unit which is used for Control of the web edge a movable, in particular pivotable cooling roller includes.
- a web edge control unit which is used for Control of the web edge a movable, in particular pivotable cooling roller includes.
- a cooling roll stand 1 is shown, which is at a distance 3 to one arranged schematically indicated dryer 2 and on the floor 4 of the pressure chamber is firmly anchored.
- a material web 5 leaves the dryer 2 and runs into the Cooling roll stand 1 at an entry point 6.
- the material web 5 is first on a first web side contacted by a silicone applicator roller 7, and thereby with a Silicone oil emulsion applied.
- the material web 5 then runs with it Silicone oil coated web side via a first cooling roller 8, which at the same time as Deflection roller is used and from this to a second cooling roller 9 one Cooling roller group 10 performed.
- Material web 5 wraps around on the further path the second cooling roller 9 with the second side coated with silicone oil on the material web and follows several looping sections of different lengths along the path Cooling rollers 9, 13, 15, 16, 17.
- the material web 5 leaves the wrap section of the second cooling roller 9 and runs essentially directly in the Wrapping section of the third cooling roller 13 such that the material web is along of the path has essentially a meandering course. It is the length of the intermediate section 14 of the material web between the second cooling roller 9 and the third cooling roller 13, as far as is technically possible, reduced and to one Reduced to a minimum.
- the web guide according to the invention is shown in detail in FIG. 3 remove.
- the material web 5 is wrapped around the cooling rollers 15, 16 in further looping sections and 17 guided around, the meandering path of the material web 5 upright is obtained.
- the one coated on both sides with silicone oil and one of the five Cooling rollers 9, 13, 15, 16 and 17 sufficiently cooled material web is now on one Web section with a rectilinear web path 18 to a further cooling roller 19 guided, which is preferably arranged above the first cooling roller 8.
- the cooling rolls of the cooling roll group 10 are so tight in the manner according to the invention packed and staggered so that the path of the material web 5 essentially continuously along the looping sections of the individual cooling rolls has a curvature and the material web 5, except for the lengthwise on a Minimum reduced transition points between the cooling rolls, constantly with the Surface of one of the cooling rollers of the cooling roller group 10 is in contact. It is through this particular type of web guide in the inventive manner a constant Heat transfer from the material web 5 to the cooling rolls of the cooling roll group 10 guaranteed, and the material web 5 leaves the successive Wrapping sections of the cooling rolls of the cooling roll group 10 only when sufficient further cooling.
- the material web 5 is further guided around cooling rolls 19, 20, 21, 22 and 23, which in the same way as by the cooling rollers 9 to 17 with in Substantially tangential points of contact can be arranged, which but not necessarily be so densely packed and staggered need, like the cooling rolls of the cooling roll group 10, because a sufficiently high cooling the material web 5 has already taken place.
- the cooling rollers 17 and 22 are each with a motor 24 and 25 as a drive unit equipped, it is also sufficient if only one of the two cooling rollers 17 and 22 with is equipped with a motor and which motor 24 or 25 for maintaining the necessary tension of the material web 5 is used.
- the cooling rollers 8 and 23 For monitoring the voltage the material web 5 are the cooling rollers 8 and 23 with respective Web tension measuring units 26 and 27 equipped, which in addition to the deflectable or movable cooling rollers 8 and 23 preferably also include sensor means 28 and 29, with which the change in deflection generated by the varying web tension or movement of the respective cooling roller 8 and 23 is determined.
- the Cooling rollers 8 and 23 are subjected to spring force, for example, so that the Cooling rollers 8 and 23 deflected from their rest position when the web tension changed become.
- the web tension values, which are at least from one of the two Web tension measuring units 26 or 27 are determined, are not shown Control and / or regulating device supplied, which the motors 24 and 25th controlled and thereby corrected the web tension in the desired manner.
- the Web tension measuring unit 26 is primarily used to determine the web tension in the Web section 30 and the web tension measuring unit 27 primarily for determining the Web tension used in the web section 31.
- Web tension measuring units 26 and 27 can also detect a web break leading to Example of a sudden above-average change in web tension is caused, the control device, not shown, then preferably can trigger an emergency stop of the printing press or actuate a web catching device.
- the web tension can be measured on each chill roll using a assigned web tension measuring unit, but preferably takes place on one of the Rollers 8, 9, 13, 15, 16, 17, in particular on the roller 9 instead.
- the measurement via a force measurement in or on the bearings of the rollers or via a suitable one Lever device, which allows a deflection of the roller and with a sensor cooperates, take place.
- the cooling roll stand shown in FIG. 1 also has a web feed device 32 with which the beginning of the material web 5 when setting up the printing press coming from the dryer 2 through the chill roll stand 1 and around the individual Cooling rollers is guided around until finally the beginning of the web of material 5 on the Outlet point 33 runs out of the chill roll stand. 1 is also shown in FIG Swivel mechanism 34 shown, which serves the first cooling roller 8 for Align the web edges in the cooling roll stand about a perpendicular to the axis of rotation to pivot the first cooling roller 8 pivot axis.
- the cooling roll stand can also be a rewetting unit 49 have to the dried and cooled web 5 before entering the Folder again to convey a moisture content that is necessary for a smooth and high-quality further processing of the printed web 5 is necessary. It can for example dampening solution by electrostatic charging of the dampening solution and the web 5 are applied to this.
- Fig. 2 shows a hot air dryer 2 with a downstream invention Cooling roll stand 1 for drying a paper web 5, which is from a not shown Rotary web offset printing machine was printed on both sides.
- the cooling roll stand 1 has a housing 35 which is at a distance 3 from the housing 36 of the dryer 2 is arranged. The distance 3 prevents movement and / or Deformation of the dryer 2 moves the chill roll stand 1 and thereby the Web tension between the cooling roll stand 1 and a subsequent one Processing unit, for example a folder, is adversely affected.
- a movement and / or deformation of the dryer 2 can, for example, by the different distribution of the heat generator in the dryer.
- the Housing 35 of the cooling roll stand 1 is preferably on the housing side 37 open only in the area of the outlet opening of the material web 5, so that fresh air 38 through the open housing side 37 into the chill roll stand 1 and from there through a or several openings, not shown, flow into a cooling zone 39 of the dryer 2 can.
- the fresh air 38 tempered the chill roll level and prevented it from escaping of solvents from the chill roll stand 1 into the ambient air of the pressure chamber, the solvents by post-evaporation from the material web 5 in the Escape cooling roll stand 1.
- the fresh air 38 enriched with solvent is in the Dryer 2 used to dry the material web 5, the solvents for Example in a post-combustion zone 40 to be further used energetically.
- FIG. 3 schematically shows the path of the material web 5 in a detailed side view along the three cooling rollers 9, 13 and 15.
- the material web 5 contacts one Place 44 the cooling roller 9 and preferably wraps around it up to a first one Transition point 45, at which the material web 5 from the cooling roller 9 to the cooling roller 13 passes or is diverted.
- the material web 5 then wraps around the cooling roller 13 to a second transition point 46, at which the material web 5 on the Cooling roller 15 passes over.
- the material web 5 leaves the Wrapping area with the cooling roller 15 and runs for example on one straight, free web section to a subsequent roller, not shown.
- the wrapping sections of the material web 5 close with the individual cooling rollers 9, 13 and 15 to one another in such a way that the material web 5 from the first contact point 44 to the last contact point 47 on a substantially meandering path is moved.
- the first and the second Junction 45 and 46 essentially no straight and free-flowing Have track sections.
- the special way of arranging the cooling rolls in Connection with the large loop sections and the small diameter 48 the cooling rolls leads to a particularly advantageous cooling with simultaneous Prevention of quality-reducing tensile waves in the material web 5
- the material web 5 has no or only one transition points 45 and 46 very, very short, straight free path, which is less than 5 cm, for example.
- rollers 9, 13 and 15 can be according to another preferred Embodiment to be in contact with the web at the tangent points simultaneously.
- rollers 9, 13 and 15 can also be adjusted relative to one another be arranged so that the distance between two rollers corresponding to the different paper thicknesses can be set.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
- Rotary Presses (AREA)
- Printing Methods (AREA)
Abstract
Description
- Fig. 1:
- eine Schnittansicht durch einen erfindungsgemäßen Kühlwalzenstand mit einer erfindungsgemäßen Vorrichtung zum Kühlen einer Materialbahn;
- Fig. 2:
- eine Schnittansicht durch eine Einheit aus Trockner und erfindungsgemäßen Kühlwalzenstand;
- Fig. 3:
- eine Seitenansicht von erfindungsgemäß angeordneten Kühlwalzen.
- 1
- Kühlwalzenstand
- 2
- Trockner
- 3
- Abstand
- 4
- Boden
- 5
- Materialbahn
- 6
- Einlaufstelle
- 7
- Silikonauftragswalze
- 8
- erste Kühlwalze
- 9
- zweite Kühlwalze
- 10
- Kühlwalzengruppe
- 11
- geradliniger Bahnabschnitt
- 12
- Silikonauftragswalze
- 13
- dritte Kühlwalze
- 14
- Zwischenabschnitt der Materialbahn
- 15
- Kühlwalze
- 16
- Kühlwalze
- 17
- Kühlwalze
- 18
- geradliniger Bahnverlauf
- 19
- Kühlwalze
- 20
- Kühlwalze
- 21
- Kühlwalze
- 22
- Kühlwalze
- 23
- Kühlwalze
- 24
- Motor
- 25
- Motor
- 26
- Bahnspannungsmesseinheit
- 27
- Bahnspannungsmesseinheit
- 28
- Sensormittel
- 29
- Sensormittel
- 30
- Bahnabschnitt
- 31
- Bahnabschnitt
- 32
- Bahneinzugsvorrichtung
- 33
- Auslaufstelle
- 34
- Verschwenkmechanismus
- 35
- Gehäuse
- 36
- Gehäuse
- 37
- Gehäuseseite
- 38
- Frischluft
- 39
- Kühlzone
- 40
- Nachverbrennungszone
- 44
- erste Kontaktstelle
- 45
- erste Übergangsstelle
- 46
- zweite Übergangsstelle
- 47
- letzte Kontaktstelle
- 48
- Durchmesser
- 49
- Befeuchtungseinheit
Claims (28)
- Verfahren zum Kühlen einer Materialbahn (5), insbesondere einer bedruckten Papierbahn, wobei die Materialbahn (5) nach dem Trocknen in einem Trockner (2) auf einem Bahnpfad über zumindest eine Kühlwalze (9, 13, 15) bewegt wird,
dadurch gekennzeichnet, dass die Materialbahn (5) unter zumindest teilweiser Umschlingung über die Kühlwalze (9) und eine der Kühlwalze vorgeordneten oder nachgeordneten Walze (13, 15) derart bewegt wird, dass der Bahnpfad im Wesentlichen mäanderförmig verläuft, wobei die Kühlwalze (9) und die der Kühlwalze vorgeordnete oder nachgeordnete Walze (13, 15) unter Ausschluss eines zwischen jeweils zwei der Walzen wirkenden Anstelldrucks zueinander angeordnet sind. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, dass die Materialbahn (5) auf einem im Wesentlichen stets gekrümmten Bahnpfad bewegt wird. - Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass die Materialbahn (5) im Wesentlichen unmittelbar von der Kühlwalze (13) zu der vorgeordneten oder nachgeordneten Walze (9, 15) bewegt wird. - Vorrichtung zum Kühlen einer Materialbahn (5), insbesondere einer bedruckten Papierbahn, mit einer Kühlwalze (13), welche von der auf einem Bahnpfad bewegten Materialbahn (5) teilweise umschlungen wird,
dadurch gekennzeichnet, dass die Vorrichtung eine der Kühlwalze (13) vorgeordnete oder nachgeordnete Walze (9, 15) umfasst, welche von der Materialbahn (5) teilweise umschlungen wird und welche derart angeordnet ist, dass die Materialbahn (5) von der Kühlwalze (13) zu der vorgeordneten oder nachgeordneten Walze (9, 15) derart bewegt wird, dass der Bahnpfad im Wesentlichen mäanderförmig verläuft. - Vorrichtung nach Anspruch 4,
dadurch gekennzeichnet, dass die vorgeordnete oder nachgeordnete Walze (9, 15) eine Kühlwalze ist. - Vorrichtung nach Anspruch 4 oder 5,
dadurch gekennzeichnet, dass die vorgeordnete oder nachgeordnete Walze (9, 15) eine Umlenkwalze ist. - Vorrichtung nach einem der Ansprüche 4 bis 6,
dadurch gekennzeichnet, dass der Durchmesser der Kühlwalze (8, 9, 13, 15, 16, 17, 19, 20, 21, 22, 23) kleiner als 300 mm ist, insbesondere im Bereich zwischen 100 mm und 250 mm liegt. - Vorrichtung nach einem der Ansprüche 4 bis 7,
dadurch gekennzeichnet, dass die Kühlwalze (8, 9, 13, 15, 16, 17, 19, 20, 21, 22, 23) einen Mantel und einen von dem Mantel begrenzten Hohlraum umfasst, welcher von Kühlmittel, insbesondere von gekühltem Wasser, durchflossen wird. - Vorrichtung nach einem der Ansprüche 4 bis 8,
dadurch gekennzeichnet, dass die vorgeordnete oder nachgeordnete Walze (9, 15) der Kühlwalze (13) in Bahnlaufrichtung im Wesentlichen direkt vorgeordnet oder nachgeordnet ist. - Vorrichtung nach einem der Ansprüche 4 bis 9,
dadurch gekennzeichnet, dass die Kühlwalze (8, 9, 13, 15, 16, 17, 19, 20, 21, 22, 23) eine freilaufende Walze ist. - Vorrichtung nach einem der Ansprüche 4 bis 9,
dadurch gekennzeichnet, dass die Kühlwalze (8, 9, 13, 15, 16, 17, 19, 20, 21, 22, 23) eine angetriebene, insbesondere eine einzeln angetriebene Walze ist. - Vorrichtung nach Anspruch ...,
dadurch gekennzeichnet, dass die angetriebene Kühlwalze (8, 9, 13, 15, 16, 17, 19, 20, 21, 22, 23) als Zugwalze ausgebildet ist, die eine Zugkraft auf die Materialbahn (5) ausübt. - Vorrichtung nach einem der Ansprüche 4 bis 12,
dadurch gekennzeichnet, dass die Vorrichtung mehrere einander nachgeordnete Kühlwalzen (9, 13, 15, 16, 17) umfasst, welche die Materialbahn (5) jeweils teilweise umschlingt und welche derart angeordnet sind, dass der Bahnpfad entlang der Kühlwalzen (9, 13, 15, 16, 17) im Wesentlichen mäanderförmig verläuft. - Vorrichtung nach Anspruch 13,
dadurch gekennzeichnet, dass die Kühlwalzen (9, 13, 15, 16, 17) derart aufeinanderfolgend angeordnet sind, dass sich der Bahnpfad entlang der Kühlwalzen (8, 9, 13, 15, 16, 17, 19, 20, 21, 22, 23) im Wesentlichen aus den Umschlingungsabschnitten zusammensetzt. - Vorrichtung nach Anspruch 13 oder 14,
dadurch gekennzeichnet, dass die Kühlwalzen (9, 13, 15, 16, 17) unmittelbar aufeinanderfolgend angeordnet sind. - Kühlwalzenstand,
gekennzeichnet durch,
eine Vorrichtung nach einem der Ansprüche 4 bis 15. - Kühlwalzenstand nach Anspruch 16,
gekennzeichnet durch,
eine erste Kühlwalze (8) und eine erste Konditioniereinheit (7), welche auf einer ersten Bahnseite und in Bahnlaufrichtung vor der ersten Kühlwalze (8) angeordnet ist. - Kühlwalzenstand nach Anspruch 17,
gekennzeichnet durch
eine zweite Kühlwalze (9) und eine zweite Konditioniereinheit (12), welche auf einer zweiten Bahnseite und in Bahnlaufrichtung vor der zweiten Kühlwalze (9) angeordnet ist. - Kühlwalzenstand nach Anspruch 17 oder 18,
dadurch gekennzeichnet, dass die erste und/oder die zweite Konditioniereinheit (7, 12) Silikonauftragswalzen umfassen, dass die erste Konditionierheit (7) in Bahnlaufrichtung vor einer Einlaufwalze (8) und die zweite Konditioniereinheit (12) in Bahnlaufrichtung vor einer der Einlaufwalze folgenden Kühlwalze (9) angeordnet sind und dass die erste und die zweite Konditionierheit (7, 12) auf unterschiedlichen Bahnseiten angeordnet sind. - Kühlwalzenstand nach einem der Ansprüche 16 bis 19,
dadurch gekennzeichnet, dass der Kühlwalzenstand (1) einem Trockner (2) derart nachgeordnet ist, dass Frischluft (38) beim Betrieb des Trockners durch den Kühlwalzenstand (1) in den Trockner (2) hineingezogen oder geblasen wird. - Kühlwalzenstand nach Anspruch 20,
dadurch gekennzeichnet, dass der Kühlwalzenstand (1) dem Trockner (2) im Wesentlichen unmittelbar nachgeordnet ist, insbesondere einen Abstand zu dem Trockner (2) aufweist, welcher kleiner als 10 cm ist. - Kühlwalzenstand nach einem der Ansprüche 20 oder 21,
dadurch gekennzeichnet, dass der Kühlwalzenstand (1) mit dem Trockner (2) eine Einheit bildet. - Kühlwalzenstand nach einem der Ansprüche 20 bis 22,
gekennzeichnet durch
eine Bahnspannungsmesseinheit (26, 27, 8, 23, 28, 29). - Kühlwalzenstand nach Anspruch 23,
dadurch gekennzeichnet, dass die Bahnspannungsmesseinheit (26, 27) zur Bestimmung der Bahnspannung oder zur Detektion eines Bahnbruchs Sensormittel (28, 29) umfasst, welche eine Bewegung der Kühlwalze (8, 23) überwachen. - Kühlwalzenstand nach einem der Ansprüche 16 bis 24,
gekennzeichnet durch,
eine Registermesseinheit, welche insbesondere eine CCD-Kamera umfasst, und welche zur Überwachung des Farb-Registers eingesetzt wird. - Kühlwalzenstand nach einem der Ansprüche 16 bis 25,
gekennzeichnet durch,
eine Bahnkantensteuereinheit (34, 26), welche zur seitlichen Korrektur der Lage der Materialbahn eine bewegbare, insbesondere verschwenkbare Kühlwalze (8) umfasst. - Trockner, insbesondere Heißlufttrockner,
gekennzeichnet durch,
eine diesem unmittelbar nachgeordnete Vorrichtung nach einem der Ansprüche 4 bis 15 oder einen Kühlwalzenstand nach einem der Ansprüche 16 bis 26. - Rollenrotationsdruckmaschine,
gekennzeichnet durch,
einen Trockner nach Anspruch 27.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10052831 | 2000-10-24 | ||
DE10052831 | 2000-10-24 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1201429A2 true EP1201429A2 (de) | 2002-05-02 |
EP1201429A3 EP1201429A3 (de) | 2007-10-03 |
EP1201429B1 EP1201429B1 (de) | 2012-06-27 |
Family
ID=7660980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01123320A Expired - Lifetime EP1201429B1 (de) | 2000-10-24 | 2001-10-08 | Verfahren und Vorrichtung zum Kühlen einer Materialbahn |
Country Status (4)
Country | Link |
---|---|
US (1) | US7065901B2 (de) |
EP (1) | EP1201429B1 (de) |
JP (1) | JP2002192691A (de) |
DE (1) | DE10149521A1 (de) |
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DE102006027147B4 (de) * | 2006-06-12 | 2011-05-12 | Koenig & Bauer Aktiengesellschaft | Kühlwalzenständer zur Kühlung einer hindurchgeführten Materialbahn |
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---|---|---|---|---|
WO2005053958A1 (en) | 2003-12-03 | 2005-06-16 | Goss Contiweb B.V. | Web-fed rotary press and method for minimizing fluting in a web-fed rotary press |
DE10356995A1 (de) * | 2003-12-03 | 2005-07-07 | Goss Contiweb B.V. | Rollenrotationsdruckmaschine und Verfahren zur Verringerung von Zugwellen in einer Rollenrotationsdruckmaschine |
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EP1826002A3 (de) * | 2006-02-25 | 2009-02-25 | Koenig & Bauer Aktiengesellschaft | Druckmaschine mit Bahnspannungsregelung |
DE102006027147B4 (de) * | 2006-06-12 | 2011-05-12 | Koenig & Bauer Aktiengesellschaft | Kühlwalzenständer zur Kühlung einer hindurchgeführten Materialbahn |
CN101746117B (zh) * | 2010-01-12 | 2012-02-29 | 中山市松德包装机械股份有限公司 | 印刷机的可调幅宽干燥风箱 |
EP2650130A1 (de) * | 2010-10-07 | 2013-10-16 | manroland web systems GmbH | Kühlwerk einer Druckmaschine |
EP3015271A3 (de) * | 2014-10-10 | 2016-08-24 | Ricoh Company, Ltd. | Bilderzeugungsvorrichtung und trocknungsvorrichtung für bilderzeugungsvorrichtung |
US9616681B2 (en) | 2014-10-10 | 2017-04-11 | Ricoh Company, Ltd. | Image forming apparatus and drying device for image forming apparatus |
US9902171B2 (en) | 2014-10-10 | 2018-02-27 | Ricoh Company, Ltd. | Image forming apparatus and drying device for image forming apparatus |
US10800187B2 (en) | 2014-10-10 | 2020-10-13 | Ricoh Company, Ltd. | Image forming apparatus and drying device for image forming apparatus |
US11254143B2 (en) | 2014-10-10 | 2022-02-22 | Ricoh Company, Ltd. | Image forming apparatus and drying device for image forming apparatus |
CN106550529A (zh) * | 2015-09-21 | 2017-03-29 | 中国科学院大连化学物理研究所 | 一种采用横向梯度波荡器的偏转腔结构 |
WO2019148933A1 (zh) * | 2018-01-30 | 2019-08-08 | 苏州市丹纺纺织研发有限公司 | 一种纺织压印冷却系统 |
CN112573135A (zh) * | 2020-11-25 | 2021-03-30 | 宣城凯欧纺织有限公司 | 一种带有网带纠偏装置的印花机烘房 |
Also Published As
Publication number | Publication date |
---|---|
EP1201429A3 (de) | 2007-10-03 |
DE10149521A1 (de) | 2002-06-20 |
US20030221332A1 (en) | 2003-12-04 |
US7065901B2 (en) | 2006-06-27 |
EP1201429B1 (de) | 2012-06-27 |
JP2002192691A (ja) | 2002-07-10 |
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