EP0657275B1 - Riffelwalze für die Herstellung von Wellpappe - Google Patents
Riffelwalze für die Herstellung von Wellpappe Download PDFInfo
- Publication number
- EP0657275B1 EP0657275B1 EP94118384A EP94118384A EP0657275B1 EP 0657275 B1 EP0657275 B1 EP 0657275B1 EP 94118384 A EP94118384 A EP 94118384A EP 94118384 A EP94118384 A EP 94118384A EP 0657275 B1 EP0657275 B1 EP 0657275B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roll
- fluted
- shell
- channels
- corrugated
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/20—Corrugating; Corrugating combined with laminating to other layers
- B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
- B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
- B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
- B31F1/2845—Details, e.g. provisions for drying, moistening, pressing
- B31F1/285—Heating or drying equipment
Definitions
- the invention relates to a corrugated roller for the production of corrugated cardboard with the features specified in the preamble of claim 1.
- Such a corrugating roller such as e.g. is known from EP-A-0 025 759, is used in corrugated cardboard machines in particular for the production of single-sided corrugated cardboard used.
- a central corrugating roller it is usually positioned with a second corrugated roller in contact, whereby through the nip between the both corrugated rollers the so-called corrugated sheet of corrugated cardboard passed and then using a glue applicator roller in contact stands with the corrugated roller, is glued. Then using a Pressure roller, which is also in contact with the corrugated roller, the so-called Cover sheet connected to the glued corrugated sheet to the one-sided To complete corrugated cardboard.
- the central corrugated roller is intended to perform other functions, in particular support effective corrugation and clean glue application.
- the corrugated roller should on the one hand be heatable in order to be heated the corrugation to simplify the corrugation.
- the Corrugated sheet on the corrugated surface of the corrugated roller in the looping area the corrugated web from the first nip between the central one Corrugated roller and the second corrugated roller up to the second nip held between the central corrugating roller and the pressure roller so that the corrugated sheet lies cleanly in the recesses of the corrugation. Only then can the corrugated web be properly glued to the elevations only the corrugation and perfect corrugation of the corrugated sheet is guaranteed.
- a pneumatic fixing device in the form of a suction device for the section of the corrugated web that wraps around the corrugated roller to provide which suction device parallel to the axis of rotation of the Corrugated roller has running suction holes in the roller shell, which on the one hand via openings with the corrugated surface of the Roll shell and on the other hand connected to a vacuum source are.
- a heating medium e.g. Steam under high Pressure - initiate.
- the heating device designed in this way is from different aspects disadvantageous. So the entire roll shell, for reasons a high stiffness of the corrugated rollers is thick-walled, only from the inside be heated out until its outer surface reaches the desired temperature shows. This is very energy intensive.
- the usually existing roller flanges that hold the roller shell on both Close ends fully pressurized with the high pressure of the steam, so that in the dimensioning of the flanges and their fasteners the additional pressure forces from the saturated steam are included have to. This leads to an oversizing which is not necessary in itself the corresponding corrugated roller components.
- the corrugated web As a suction device for the section that wraps around the corrugated roller the corrugated web, however, are bores running radially in the roll shell used, which measure the entire roll shell and in the hollow Open the interior of the roll shell. The latter is with a vacuum source connected.
- This construction of the suction device is disadvantageous in that the Bores in the roll shell are relatively long and are very thin. In order to occurs on the suction path from the outer surface of the corrugated roller to the interior of the roller a high pressure drop. In addition, the hollow Interior of the roll shell is relatively large. To compensate for the mentioned pressure loss and because of the large volume of the suction space is a powerful suction pump and therefore larger, more complex necessary for the suction device. This adds to the complication added that about the suction holes in the roll shell, which in the section of the lateral surface not covered by the corrugated sheet to the outside mouth, "wrong" air is sucked in, which leads to a further reduction contributes to the suction effect.
- Corrugated rollers such as those of the basic construction known from EP-A-0 025 759 are also from EP-A-0 009 907, EP-A-0 034 906 and US-A-1 264 506 known. These corrugated rollers also have those discussed Disadvantages.
- the invention has for its object a corrugated roller of the generic type Kind in such a way that while maintaining an effective pneumatic fixing device the heating is improved in such a way that the heating with improved efficiency and accordingly reduced Energy expenditure can be operated and the disadvantages discussed due to the additional pressure when the hollow roller interior is loaded occurring axial forces can be avoided.
- the pneumatic fixing device provided in the roll shell Delivery channels for the heating medium are both the heating and the for the loading of the corrugated web that wraps around the corrugated roller Parts of the pneumatic fixing device directly in the roller jacket integrated.
- this increases the efficiency of the heating improved because the heat near the surface of the corrugated roller from Heating medium is dispensed on the roller jacket.
- a surprising one Advantage of the integration of the conveyor channels in the roll shell is also that the heat conduction path between the delivery channels and the outer surface of the roll shell not only - as discussed - is much shorter than in the prior art, but that too the full cross-section of the roll shell radially outside the conveyor channels is available for heat conduction. This is how the heat is transported unhindered to the lateral surface, which is a fast and effective Heating the outer surface is useful.
- the corrugated rollers according to the prior art with a heated interior of the roll shell is the heat transfer through the wall of the roll shell due to the this interrupting air discharge channels, however, hindered.
- Claims 2 and 3 characterize advantageous embodiments of the mutual Assignment of the conveying and arranged in the roll shell Air discharge ducts. This ensures that the Corrugated roller wrapping section of the corrugated sheet on the one hand and one uniform heating of the surface of the roll shell on the other hand achieved.
- Claim 5 characterizes a structurally simple configuration of the flow connection between those that belong together in pairs or groups Flow and return lines.
- the measures specified in claims 6 and 7 serve an improvement the entry and exit of the heating medium, in particular by the ring distributor groove provided on the feed side according to claim 7 an even supply of the heating medium in all supply lines with a corresponding equalization of the heating effect over the circumference the corrugated roller is achieved.
- Claim 8 indicates a particularly simple manufacturing technology Design for the delivery channels.
- Claims 9 to 13 relate to advantageous configurations of the pneumatic Fixing device in the form of a suction device, by means of which in particular, it is avoided that the not wrapped by the corrugated web Sections of the lateral surface "wrong" air is sucked in.
- the measure specified in claim 14 avoids that the air inlet openings connected to the air discharge channels in the roll shell in the outer surface e.g. become clogged with contaminants.
- pneumatic fixing device as a suction system can also do that in the Claims 15 and 16 characterized printing system are used.
- Such printing systems are generally known from the prior art, however, so far cooperating with such printing systems Air inlet openings and air discharge channels in the roller jacket of the corrugated roller were not provided.
- the use of such air inlet openings and air discharge channels in the roll shell, as specified in claim 15 is, however, is advantageous in that it is on the corrugated web an effective pressure gradient is built up, which the reliable Fixing the web on the corrugating roller strongly supported.
- the corrugated cardboard machine 1 shown schematically in Fig. 1 is used for production single-sided corrugated cardboard. It has a central corrugated roller 2, which is driven in rotation about its axis of rotation 3. On a wrap angle W of 180 °, a corrugated web 4 is guided around the corrugated roller 2. A counter-corrugating roller 5 is arranged below the corrugating roller 2, which are driven in the opposite direction to the corrugating roller 2 is and the corrugation combs with the corrugation of the corrugating roller 2. Thereby is the corrugated web 4, which before entering the corrugated roller 2 and counter corrugating roller 5 formed nip is smooth, in the The corrugation of the corrugation roller 2 is pressed in and thus corrugated.
- a glue unit 6 is arranged on the side next to the corrugating roller 2
- Squeeze roller 8 and applicator roller 7 on the one hand and the application roller 7 and the corrugating roller 2 on the other hand are in mutual contact, creating a defined layer of glue on the above Areas of the corrugated sheet 4 is applied in a conventional manner.
- a smooth pressure roller 10 is arranged above the corrugating roller 2, which in turn forms a nip with the corrugated roller 2. Through this becomes the corrugated sheet 4 and a cover sheet brought up from a supply roll 11 passed through, whereby these two tracks 4, 11 to the one-sided Corrugated web 12 are combined.
- the central corrugated roller 2 has a heater, not shown in FIG. 1 and a suction device for the corrugated sheet 4 to the latter in the area of the wrap angle W to be reliably fixed on the corrugating roller. Heating and suction device will be closer in the following explained.
- the corrugated roller 2 has a hollow cylindrical roller shell 13 on.
- the outer lateral surface 14 is parallel to the axis of rotation 3 extending corrugation 15 provided, only partially in Fig. 2 is shown. Furthermore, several are uniform in the lateral surface 14 Spaced annular grooves 16 are provided, each run in a plane perpendicular to the axis of rotation 3. The ring grooves 16 have a slightly greater depth than the corrugation 15 on (see Fig. 3, 4).
- roller flanges 19, 20 are roll flanges 19, 20 arranged, which is screwed to the roll shell 13 in the usual manner are and close its interior.
- Both roller flanges 19, 20 each have a coaxial to the axis of rotation 3 to the outside protruding bearing pins 21, 22, by means of which the corrugated roller 2 in corresponding roller bearings 23 rotatable in the roller stands on both sides 24, 25 is mounted.
- One journal 21 sits in one Shaft journal 26 continues with a (not shown) drive motor is connected for the rotational movement of the corrugated roller 2.
- the corrugated roller 2 a suction device for the corrugated roller 2 in the area of the wrap angle W surrounding section of the corrugated sheet 4.
- This suction device comprises parallel to the axis of rotation 3 of the corrugating roller 2
- Suction bores 27 running in the roll shell over the length of the roll 13, which can be subjected to negative pressure in a manner yet to be described are.
- the suction bores 27 are each radially outward running openings 28 with the bottom of the annular grooves 16 in connection.
- the suction bores 27 are each from the roll jacket 13 in the roll flange 19 at one end 17 of the Corrugated roller 2 carried out by in the roller flange 19 each with the Suction holes 27 axially aligned through holes 29 are introduced are.
- These through holes 29 open freely on the end face 30 of the Roll flange 19 from.
- the ring-shaped area in which the mouth openings 31 of the through holes 29 emerge - essentially the area that is related to the annular cross section of the roll shell 13 covers - is by a stationary, on the end face 30 of the roller flange 19 closely fitting ring cover 32 covered on his the rear side facing away from the rear side with an integrally formed Ring approach 33 is provided.
- This ring shoulder 33 is in a corresponding Ring groove 34 in the roller stand 24 parallel to the axis of rotation 3 slidably mounted.
- helical compression springs 35 are provided inserted between the groove base 36 of the annular groove 34 and the annular shoulder 33 are.
- the ring cover 32 also has in its on the roller flange 19 resting contact surface 37 has a partially annular recess 38, which extends over the wrap angle W, as shown in 8 by the dash-dotted outline of the recess 38 is made clear.
- the recess 38 is with a connection hole 39 in the ring shoulder 33 in connection, which opens into the annular groove 34.
- the latter is in turn connected to a through a passage 40 Junction box 41 on the roller stand 24 in connection, on which one is not
- the suction line shown can be connected to a vacuum source V. in the the rest of the ring cover 32 is against rotation in the ring groove 34 secured by a pin 42 fastened in the ring shoulder 33, which is in a Slot 43 engages on the roller stand 24.
- FIGS. 4 and 5 serves the same purpose Embodiment of the suction device.
- these are Suction bores 27 with openings 28 to the groove base of the ring grooves 16 available, the suction bores 27 each in the region of their ends at the roller flanges 19, 20 closed by fastening screws 44 are at the same time a firm connection between the roll shell 13 and the roller flanges 19, 20 serve.
- the suction bores 27 are each via a connecting line 45 with a vacuum control device 46 connected.
- Each connecting line 45 consists of one radial branch 47 which, starting from the respective suction bore 27 Roller shell 13 and one in the interior 48 of the roller shell 13 engaging retaining pin 49 of the roller flange 19 radially inwards enforced.
- Each radial branch 47 of the connecting lines 45 opens into an associated axial branch 50, which is formed by a blind hole is, the roller flange 19 starting from the inside 51 of Retaining pin 49 to the area of the outer end of the bearing pin 21 enforced.
- each axial branch 50 is through closed a screw cap 52.
- Each axial branch 50 is still in front its blind end 53 with a radially outward opening 54 provided which opens into the peripheral surface 55 of the journal 21.
- the axial branches 50 of the connecting lines 45 in the radial and peripheral direction over the bearing pin 21 distributed.
- the vacuum control device 46 by means of which only the suction bores 27 and the corresponding openings 28 are subjected to negative pressure be in the area wrapped by the corrugated web 4 of the outer surface 14 have a pot-like housing 56, which attached to the outside of the roller stand 24 facing away from the corrugated roller 2 and the end of the bearing protruding in this area 21 tightly surrounds.
- the interior of the housing 56 in which the openings 54 of the connecting lines 45 open into a vacuum chamber 57 and an atmospheric pressure or pressure chamber 58 radially divided.
- the semi-ring-shaped vacuum chamber 57 stands over a connecting flange 59 with a vacuum source V - e.g. a vacuum pump - in connection.
- the peripheral extension of the overpressure space 58 covers with the peripheral arrangement and size of the looping area the corrugated web 4 around the corrugating roller 2.
- the overpressure chamber 58 is opened by a partially annular insert 60 an annular gap 61 is narrowed, with the two in the peripheral direction facing ends 62 of the insert 60 each have a sealing body 63 pressure-tight radial division of the housing 56 in the vacuum 57 and Overpressure chamber 58 is attached.
- the annular gap 61 stands over a connecting channel 64 in the insert 60 with a connecting flange 65 in connection, that can flow freely into the atmosphere - then the ring gap 61 pressurized with atmospheric pressure - or with an excess pressure source H (e.g. a pump) - then the Annular gap 61 is pressurized.
- the heating device for the corrugated roller 2 is described in more detail below. which is particularly evident from FIGS. 3, 6, 7 and 8. Basically, the heating device works with a heating medium, e.g. Saturated steam at a pressure of 16 bar and a temperature of approx. 200 ° C, which steam brought in from a corresponding steam generator and is introduced into the corrugating roller 2.
- a heating medium e.g. Saturated steam at a pressure of 16 bar and a temperature of approx. 200 ° C
- the corrugated roller 2 parallel to the axis of rotation 3 in the roller jacket 13 between the suction bores 27 extending production bores 66, which as an annular Face of the roll shell 13 to the opposite face through holes are formed. In the area of their outer ends these delivery bores 66 are closed by screw plugs 67.
- the Delivery bores 66 run between the suction bores 27 such that these two types of holes alternately follow each other in the circumferential direction U. Conveying 66 and suction bores 27 are equidistant Roller jacket 13 arranged. Two successive ones in the circumferential direction U. Delivery bores 66 are in pairs to a flow line 68 and a return line 69 summarized. So that the input and Feeding the steam into the production bores 66 from one side of the Corrugated roller 2 ago.
- the steam lines are the return lines 69 with return channels 83 connected by the roller shell 13 and the holding pin 74th of the roller flange 20 extend radially inwards and in a central Blind hole 84 open out. The latter extends from the blind end 73 of the steam channel 72.
- a return pipe is in the blind hole 84 85 used sealing, the central in the steam duct 72 via the bushing 71 to the outside and from there back to the steam generator. So there is a closed steam cycle for heating the Corrugated roller 2.
- each has a group of three flow lines 68 and an associated return line 69 through channels 80, which are common into a conveyor recess 81 'on the peripheral surface 82 of the Holding pin 49 open.
- the three support recesses 81 ' are therefore only relative short separators 89 (shown in dashed lines in the main section of FIG. 9) Cut.
- each assigned return channels 83 which in the main section of FIG. 9 are also indicated by dashed lines and in the axial direction behind the Lead channels 75 are. These open out analogously to the exemplary embodiment 8 again in the return pipe 85 in the steam channel 72.
- This corrugated cardboard machine is basically constructed like that shown in Fig. 1 and again has a central corrugating roller 2, a counter corrugating roller 5 and a smooth pressure roller 10 and a glue unit 6 with applicator roller 7 and squeeze roller 8 on.
- the glue pan 9 ' is different from the embodiment 1 designed as a pressure box open on one side, which over a connecting piece 90 is connected to a positive pressure source.
- the Open side 91 closes essentially pressure-tight with that of the corrugated cardboard web 12 wrapped area (wrap angle W) of the lateral surface 14 of the corrugated roller 2.
- the corrugating roller 2 itself is e.g. as explained with reference to FIGS. 3 to 9 Corrugated roller designed, connecting to a vacuum source can be dispensed with.
- the suction holes 27 then serve as air discharge ducts connected to the atmosphere, by means of which the air ducts under the Overpressure pressed through the corrugated cardboard web and over the openings 28 or 88 air entering these air discharge ducts are carried away becomes.
- the heating device of the corrugating roller 2 can be shown in FIG Embodiment are adopted unchanged.
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- Mechanical Engineering (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
Description
- Fig. 1
- eine schematische Seitenansicht einer Wellpappemaschine zur Herstellung einseitiger Wellpappe mit einem Saugsystem zur Fixierung der Wellpappebahn auf der Riffelwalze,
- Fig. 2
- eine schematische Draufsicht auf eine erfindungsgemäße Riffelwalze in einer ersten Ausführungsform,
- Fig. 3
- einen Teilschnitt durch die Riffelwalze entlang der Schnittlinie III-III nach Fig. 2,
- Fig. 4
- einen Teilschnitt analog Fig. 3 durch eine Riffelwalze in einer zweiten Ausführungsform,
- Fig. 5
- einen Querschnitt durch die Riffelwalze entlang der Schnittlinie V-V nach Fig. 4,
- Fig. 6
- einen Querschnitt durch die Riffelwalze entlang der Schnittlinie VI-VI nach Fig. 3,
- Fig. 7
- einen Teilschnitt durch die Riffelwalze entlang der Schnittlinie VII-VII nach Fig. 2,
- Fig. 8
- einen Querschnitt durch die Riffelwalze entlang der Schnittlinie VIII-VIII nach Fig. 7,
- Fig. 9
- einen Querschnitt im wesentlichen analog Fig. 8 einer Riffelwalze mit einer von Fig. 8 abweichenden Konfiguration der Heizmedium- Vor-und -Rücklaufleitungen,
- Fig. 10
- eine Seitenansicht einer Riffelwalze mit einer alternativen Ausgestaltung der Mantelfläche,
- Fig. 11
- einen Teilquerschnitt durch den Walzenmantel entlang der Schnittlinie X-X nach Fig. 9, und
- Fig. 12
- eine schematische Seitenansicht einer Wellpappemaschine zur Herstellung einseitiger Wellepappe mit einem Drucksystem zur Fixierung der Wellpappebahn auf der Riffelwalze.
Claims (16)
- Riffelwalze für die Herstellung von Wellpappe miteinem hohlzylindrischen Walzenmantel (13), dessen äußere Mantelfläche (10) mit einer parallel zur Rotationsachse (3) der Walze (2) verlaufenden Riffelung (15) versehen ist,den Walzenmantel (13) an beiden Enden (17, 18) verschließenden Walzenflanschen (19, 20), die jeweils einen Lagerzapfen (21, 22) zur drehbaren Lagerung der Riffelwalze (2) in einem Walzenständer (24, 25) aufweisen,einer pneumatischen Fixiervorrichtung für den die Riffelwalze (2) umschlingenden Abschnitt einer Wellbahn (4) der herzustellenden Wellpappebahn (12), welche Fixiervorrichtung vorzugsweise parallel zur Rotationsachse (3) der Riffelwalze (2) verlaufende Luftabfuhrkanäle (27) im Walzenmantel (13) aufweist, die einerseits über Öffnungen (28, 88) mit der geriffelten Mantelfläche (14) des Walzenmantels (13) und andererseits mit einem Druckreservoir verbunden sind, das gegenüber dem auf der Außenseite des umschlingenden Abschnitts der Wellpappebahn (12) herrschenden Druck einen niedrigeren Druck aufweist, sowieeiner Heizvorrichtung für die Riffelwalze (2),
- Riffelwalze nach Anspruch 1, dadurch gekennzeichnet, daß die Förderkanäle (66) so zwischen den Luftabfuhrkanälen (27) der Fixiervorrichtung verlaufen, daß die Förderkanäle (66) und Luftabfuhrkanäle (27) sich in Umfangsrichtung (U) der Riffelwalze (2) abwechselnd aufeinanderfolgend angeordnet sind.
- Riffelwalze nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Förderkanäle (66) und Luftabfuhrkanäle (27) in Umfangsrichtung (U) äquidistant im Walzenmantel (13) angeordnet sind.
- Riffelwalze nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Förderkanäle (66) jeweils paarweise zu einer Vorlaufleitung (68) und einer Rücklaufleitung (69) oder gruppenweise zu Vor- (68) und Rücklaufleitungen (69) in unterschiedlicher oder gleicher Anzahl zusammengefaßt sind.
- Riffelwalze nach Anspruch 4, dadurch gekennzeichnet, daß jeweils paar- oder gruppenweise zusammengehörende Vorlauf- (68) und Rücklaufleitungen (69) im Bereich eines Walzenendes (17) mit radial zur Innenfläche (78) des Walzenmantels (13) verlaufenden Durchgangskanälen (80) versehen sind, die jeweils paar- oder gruppenweise in zugeordnete Verbindungskanäle in Form von Förderausnehmungen (81, 81') an der peripheren Fläche (82) eines in den Walzenmantel (13) eingreifenden Haltezapfens (49) des Walzenflansches (19) münden.
- Riffelwalze nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß die Ein- und Ausspeisung des Heizmediums der Heizvorrichtung in die Vorlaufleitungen (68) und aus den Rücklaufleitungen (69) gemeinsam im Bereich eines Endes (18) der Riffelwalze (2) über koaxial ineinandersitzende Einspeisungs- und Ausspeisungsleitungen (72, 85) und radial davon ausgehende Vorlauf- und Rücklaufkanäle (75, 83) im Walzenflansch (20) erfolgt.
- Riffelwalze nach Anspruch 6, dadurch gekennzeichnet, daß die Vorlaufkanäle (75) im Walzenflansch (20) in eine umlaufende Ringverteilernut (76) für das Heizmedium in der peripheren Fläche (77) des Haltezapfens (74) des Walzenflansches (20) münden, von welcher Ringverteilernut (76) aus radiale Durchgangskanäle (79) zu den Vorlaufleitungen (68) führen.
- Riffelwalze nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Förderkanäle (66) als durch den gesamten Walzenmantel (13) parallel zur Rotationsachse (3) der Riffelwalze (2) durchgehende Bohrungen ausgebildet sind, deren offene Enden durch Stopfen (67) verschlossen sind.
- Riffelwalze nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Luftabfuhrkanäle (27) abhängig von der Drehstellung der Riffelwalze (2) derart mit einer Unterdruckquelle als Druckreservoir verbindbar sind, daß nur die Luftabfuhrkanäle (27) mit Unterdruck beaufschlagt sind, deren Öffnungen (28, 88) in dem von der Wellbahn (4) umschlungenen Umfangsabschnitt der Riffelwalze (2) gelegen sind.
- Riffelwalze nach Anspruch 9, dadurch gekennzeichnet, daß jeder Luftabfuhrkanal (27) über jeweils eine Verbindungsleitung (45) im Walzenflansch (19) und im zugeordneten Lagerzapfen (21) mit einer Unterdrucksteuervorrichtung (46) verbunden ist, wobei die Verbindungsleitungen (45) jeweils mit radial in die periphere Fläche (55) des Lagerzapfens (21) ausmündenden Öffnungen (54) versehen sind und wobei die Unterdrucksteuervorrichtung (46) ein den Lagerzapfen (21) dicht umgebendes Gehäuse (56) aufweist, das entsprechend dem Umschlingungswinkel (W) der Wellbahn (4) um die Riffelwalze (2) in einen mit der Unterdruckquelle verbundenen Unterdruckraum (57) und einen mit der Atmosphäre bzw. einer Überdruckquelle verbundenen Atmosphärendruck- bzw. Überdruckraum (58) geteilt ist.
- Riffelwalze nach Anspruch 10, dadurch gekennzeichnet, daß der Atmosphären- bzw. Überdruckraum (58) durch ein teilringförmiges Einsatzstück (60) auf einen Ringspalt (61) eingeengt ist, wobei am Einsatzstück (60) Dichtkörper (63) zur druckdichten Trennung des Gehäuses (56) zwischen seinem Unterdruckraum (57) und seinem Atmosphären- bzw. Überdruckraum (58) angeordnet sind.
- Riffelwalze nach Anspruch 9, dadurch gekennzeichnet, daß die Luftabfuhrkanäle (27) jeweils vom Walzenmantel (13) in einen (19) der Walzenflansche (19, 20) durchgeführt sind und frei auf der Stirnseite (30) des Walzenflansches (19) ausmünden (31), wobei der ringförmige Bereich der Mündungsöffnungen (31) durch einen stationären, am Walzenflansch (19) dicht anliegenden Ringdeckel (32) abgedeckt ist, der in seiner auf dem Walzenflansch (19) aufliegenden Anlagefläche (37) eine sich in Umfangsrichtung (U) über den Umschlingungswinkel (W) der Wellbahn (4) um die Riffelwalze (2) erstreckende Ausnehmung (38) aufweist, die mit der Unterdruckquelle zur Unterdruckbeaufschlagung derjenigen Luftahfuhrkanäle (27) in Verbindung steht, die dem von der Wellbahn (4) umschlungenen Walzenabschnitt (W) zugeordnet sind.
- Riffelwalze nach Anspruch 12, dadurch gekennzeichnet, daß der Ringdeckel (32) in rotationsaxialer Richtung verschiebbar am Walzenständer (24) gelagert und in Anlagerichtung zum Walzenflansch (19) federbeaufschlagt (35) ist.
- Riffelwalze nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß die Mantelfläche (14) des Walzenmantels (13) mit quer zur Riffelung (15) über eine Teilumfangslänge des Walzenmantels (13) verlaufenden Nutsegmenten (86) versehen ist, die mit ihrem Nutgrund (87) jeweils mindestens einen Luftabfuhrkanal (27) unter Bildung von Lufteintrittsöffnungen (88) schneiden.
- Riffelwalze nach einem der Ansprüche 1 bis 8 oder 14, dadurch gekennzeichnet, daß der Riffelwalze (2) im Bereich ihrer von der Wellpappebahn (12) umschlungenen Mantelfläche (10) ein pneumatisches Überdrucksystem zugeordnet ist, das die Wellpappebahn (12) von außen mittels Überdruck auf der geriffelten Mantelfläche (14) der Riffelwalze (2) fixiert, wobei die Luftabfuhrkanäle im Walzenmantel (13) zum Wegführen der unter dem Überdruck durch die Wellpappebahn (12) hindurchgepreßten und über die Öffnungen (28, 88) im Walzenmantel (13) in die Luftabfuhrkanäle eintretenden Luft mit der Atmosphäre verbunden sind.
- Riffelwalze nach Anspruch 15, dadurch gekennzeichnet, daß das Überdrucksystem einen einseitig offenen Druckkasten (9') aufweist, dessen Offenseite (91) im wesentlichen druckdicht mit dem von der Wellpappebahn (12) umschlungenen Bereich der Mantelfläche (14) der Riffelwalze (2) abschließt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4341730A DE4341730A1 (de) | 1993-12-08 | 1993-12-08 | Riffelwalze für die Herstellung von Wellpappe |
DE4341730 | 1993-12-08 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0657275A1 EP0657275A1 (de) | 1995-06-14 |
EP0657275B1 true EP0657275B1 (de) | 1998-05-20 |
EP0657275B2 EP0657275B2 (de) | 2000-09-13 |
Family
ID=6504405
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94118384A Expired - Lifetime EP0657275B2 (de) | 1993-12-08 | 1994-11-23 | Riffelwalze für die Herstellung von Wellpappe |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0657275B2 (de) |
DE (2) | DE4341730A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2465674A1 (de) | 2010-12-20 | 2012-06-20 | BHS Corrugated Maschinen- und Anlagenbau GmbH | Riffel-Walze für die Herstellung von Well-Pappe |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2131450B1 (es) * | 1996-09-12 | 2000-03-01 | Talleres Iruna S A | Perfeccionamientos en rodillos corrugadores calentados mediante vapor. |
DE19836848A1 (de) * | 1998-08-14 | 2000-02-17 | Bhs Corr Masch & Anlagenbau | Wellpappe-Maschine zur Herstellung einseitiger Wellpappe |
DE10257496B3 (de) * | 2002-12-10 | 2004-10-14 | Bachofen & Meier Ag | Vakuum-Kühlwalze |
DE102007012160A1 (de) | 2007-03-12 | 2008-09-18 | Stipo Jelica | Vorrichtung und Verfahren zum Herstellen von Wellpappe sowie die Verwendung der gemäß dem Verfahren hergestellten Wellpappe |
NZ602240A (en) * | 2008-06-25 | 2014-03-28 | Corcel Ip Ltd | Improvements in corrugating rollers |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2840150A1 (de) * | 1977-10-03 | 1979-04-05 | Isowa Industry Co | Einseitige wellpappenmaschine |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4338154A (en) * | 1979-09-14 | 1982-07-06 | S. A. Martin | Machine for producing single-face corrugated board |
FR2622145B1 (fr) * | 1987-10-23 | 1994-05-27 | Lacaux Freres Papeteries Carto | Cylindre cannele pour une machine de fabrication de carton ondule |
US5183525A (en) * | 1990-05-24 | 1993-02-02 | United Container Machinery Group, Inc. | Heater for a double facing corrugating machine |
US5156714A (en) * | 1990-05-24 | 1992-10-20 | United Container Machinery Group, Inc. | Heater for a corrugating machine |
ES2053377B1 (es) * | 1992-03-02 | 1996-01-16 | Torres Martinez M | Sistema para la fabricacion de carton ondulado. |
-
1993
- 1993-12-08 DE DE4341730A patent/DE4341730A1/de not_active Withdrawn
-
1994
- 1994-11-23 DE DE59406016T patent/DE59406016D1/de not_active Expired - Fee Related
- 1994-11-23 EP EP94118384A patent/EP0657275B2/de not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2840150A1 (de) * | 1977-10-03 | 1979-04-05 | Isowa Industry Co | Einseitige wellpappenmaschine |
FR2404709A1 (fr) * | 1977-10-03 | 1979-04-27 | Isowa Industry Co | Machine pour la production de carton ondule revetu sur une seule face |
US4251313A (en) * | 1977-10-03 | 1981-02-17 | Isowa Industry Co., Ltd. | Web retaining device for a corrugation machine |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2465674A1 (de) | 2010-12-20 | 2012-06-20 | BHS Corrugated Maschinen- und Anlagenbau GmbH | Riffel-Walze für die Herstellung von Well-Pappe |
US9073283B2 (en) | 2010-12-20 | 2015-07-07 | Bhs Corrugated Maschinen-Und Anlagenbau Gmbh | Corrugating roller for the manufacture of corrugated cardboard |
TWI492840B (zh) * | 2010-12-20 | 2015-07-21 | Bhs Corr Masch & Anlagenbau | 用於製造瓦楞卡板之瓦楞輥 |
Also Published As
Publication number | Publication date |
---|---|
EP0657275A1 (de) | 1995-06-14 |
DE59406016D1 (de) | 1998-06-25 |
EP0657275B2 (de) | 2000-09-13 |
DE4341730A1 (de) | 1995-06-14 |
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