EP0401886B1 - Rouleau de support ou de guidage - Google Patents

Rouleau de support ou de guidage Download PDF

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Publication number
EP0401886B1
EP0401886B1 EP90201247A EP90201247A EP0401886B1 EP 0401886 B1 EP0401886 B1 EP 0401886B1 EP 90201247 A EP90201247 A EP 90201247A EP 90201247 A EP90201247 A EP 90201247A EP 0401886 B1 EP0401886 B1 EP 0401886B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
roller
roller according
substrate
surface structure
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
Application number
EP90201247A
Other languages
German (de)
English (en)
Other versions
EP0401886A1 (fr
Inventor
Ronald Ekkel
Bernard Pierre Diebels
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stork Screens BV
Original Assignee
Stork Screens BV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from NL8901349A external-priority patent/NL8901349A/nl
Application filed by Stork Screens BV filed Critical Stork Screens BV
Priority to AT90201247T priority Critical patent/ATE94844T1/de
Publication of EP0401886A1 publication Critical patent/EP0401886A1/fr
Application granted granted Critical
Publication of EP0401886B1 publication Critical patent/EP0401886B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/02—Advancing webs by friction roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/14—Roller pairs
    • B65H2404/141—Roller pairs with particular shape of cross profile
    • B65H2404/1414—Roller pairs with particular shape of cross profile complementary relief
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/18—Rollers composed of several layers
    • B65H2404/181—Rollers composed of several layers with cavities or projections at least at one layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/50—Surface of the elements in contact with the forwarded or guided material
    • B65H2404/52—Surface of the elements in contact with the forwarded or guided material other geometrical properties
    • B65H2404/521—Reliefs

Definitions

  • the present invention relates to a roller for use in the guiding and/or supporting of a moving web-type substrate, in an apparatus for treatment thereof wherein the surface of said roller which comes into contact with the substrate is provided with a surface structure as a result of which a predetermined volume of gas is enclosed between the substrate which is in contact with the surface structure and the roller and the structure is given a form such that said volume of gas remains essentially the same at the substrate conveying speeds used.
  • rollers are generally used as supporting or guiding rollers in apparatuses for treating web-type media, in which connection treatment may be understood to mean a large number of operations such as coating, printing, subjecting to corona discharge, exposure etc.
  • a roller of the indicated type is described in GB-A-1 056 372 which discloses a guide roller assembly for a paper web handling machine.
  • a limited number of surface structures is described which all serve to prevent the build up of an air cushion between the moving paper web and the guiding roller in the handling machine concerned.
  • Said known guide roller has as a disadvantage that a large number of different rollers is needed when the handling machine is intended for various purposes and/or various substrates.
  • the present invention has as an object to provide a roller of the type concerned which does not show said disadvantage and which allows for fast and easy changing of the surface structure thereof.
  • Said roller is thereto characterized in that the roller comprises a seamless metal sleeve at its surface which comes into contact with the substrate and the surface structure is provided at.the surface of the sleeve. said sleeve being mounted such that exchange thereof is allowed.
  • EP-A-0 253 981 which describes a guiding roller, comprising a cylindrical sleeve which is elastically deformable in a certain pressure region, and which is closed with end caps. Said sleeve can be pressurized by a pressure fluid to generate and to maintain an overpressure inside. No surface structure is present.
  • DE-A-3 023 246 concerns a single or multi-layer covering for a guiding roller.
  • the covering may have properties for preventing gas build up and wear resistance.
  • DE-A-3 302 843 relates to a guiding roller for foils, especially plastic foils, said roller comprising an exterior rubber surface which is provided with a structure comprising numerous closely spaced bulges. During operation of the roller at high speeds air can escape between the bulges.
  • GB-A-1 195 592 describes a guide roller assembly for a paper web handling machine, comprising an imperforate freely rotatable idler roller, in the surface of which a plurality of alternating ridges and grooves is present. These ridges and grooves are present to prevent gas build up.
  • a seamless metal sleeve is a nickel sleeve having a thickness between 150 and 500 micrometer and in particular between 150 and 250 micrometer.
  • Such nickel sleeves are manufactured by the applicant and may be provided with any desired circumference length and in any axial length.
  • Such sleeves may be given any desired surface structure which may be applied in a plurality of ways as will be explained in the drawings.
  • This problem is solved according to the present invention by providing the surface structure with a top layer of high wear resistance.
  • top layer comprises a wear resistant material chosen from:
  • the surface structure of the roller according to the invention is provided with a top layer having high wear resistance, such as a nickel-phosphorus layer or chromium layer; the surface structure may also, for example, be provided with a polytetrafluoroethylene coating layer in order to prevent wear of the roller and damage to the substrate as much as possible.
  • the sleeve incorporated in the roller is mounted under axial stress between two end rings or flanges mounted on a shaft.
  • Such a roller has the advantage that the weight thereof can be extremely low, as a result of which the roller will readily start to rotate concomitantly with the substrate to be supported or guided.
  • a sleeve provided with perforations such as, for example, a metal rotary screen-printing stencil.
  • the thickness may vary between 100 and 250 micrometers or thicker.
  • the surface structure may comprise a separately provided structure which is superimposed on the structure of the perforation pattern of the sleeve. In certain cases, the structure of the perforation pattern itself will also be sufficient to guarantee that the sheet-type substrate always remains in contact with the surface of the sleeve.
  • means such as, for example, a labyrinth of partitions are present inside the sleeve in order to make it possible to adjust an axially extending pressure profile inside the perforated sleeve in a predetermined manner.
  • a labyrinth structure may optionally rotate concomitantly with the perforated sleeve; the pressure profile may be in the overpressure range and (possibly partly), in the underpressure range. Regulation of the pressure inside the perforated sleeve makes possible a further perfecting of the substrate contact behaviour, as a result of which even locally occurring imperfections in the substrate contact can be remedied.
  • a sleeve either unperforated or perforated between two end rings or flanges under axial stress. This will provide a basic rigidity to such sleeve or screen which is sufficient for low contact pressure of the guided web. If higher pressures are to be taken a sleeve, in this case having no perforations, may have rigidity by a filling in the interior thereof of a material of low density such as a cured foam plastic material or a pressurized gas such as air.
  • a polyurethane such as polyurethane HHR® of Voss Chemie.
  • This material is a semi-hard foam having a density of approx. 26 kg/m3.
  • a foam H 450® of Voss Chemie may be used; this is a polyurethane foam which exhibits high pressure (5-6 kg/cm2 overpressure) during hardening and has a density of 450 kg/m3.
  • high pressure 5-6 kg/cm2 overpressure
  • a sleeve can be carried in a clamping manner by a supporting cylinder which is provided with axle means.
  • a supporting roller is a so-called compressible stretching roller such as is described in the non-prepublished Dutch Patent Application Publication No. 88 00 781 (published 16.10.1989) of Stork Screens.
  • a supporting roller is described with, at the surface, a continuous coating which can be pressed in.
  • a medium under pressure for example gas
  • this compressible roller will readily be sufficient for forming the roller according to the invention.
  • the invention also relates to a roller for use in the guiding and/or supporting of a moving web-type substrate, in an apparatus for treatment thereof wherein the surface of the roller which comes into contact with the substrate is provided with a surface structure as a result of which a predetermined volume of gas is enclosed between the substrate which is in contact with the surface structure and the roller and the structure is given a form such that said volume of gas remains essentially the same at the substrate conveying speeds used, which is characterized in that the roller is a massive or thick-walled metal roller and the surface structure is provided with a top layer of high wear resistance.
  • Such top layer may thereto comprise various materials of which may be mentioned:
  • titanium nitride is found to offer valuable properties in terms of hardness, wear resistance and appearance.
  • the top layer may comprise a metal layer such as a nickel-phosphorus or chromium layer.
  • Attractive is also a polytetrafluoroethylene layer having a very low coefficient of friction; in this respect also mixed ceramic-polytetrafluoroethylene layers may be mentioned.
  • the latter layers may expediently be applied by a plasma spraying process.
  • the invention finally relates to an apparatus for treating a moving web-type substrate which comprises one or more substrate treatment units, substrate moving units and one or more substrate supporting rollers, such an apparatus being characterized in that the substrate supporting rollers have the form as described above for a roller according to the invention.
  • Such an apparatus for treating a moving web-type substrate may, for example, be an apparatus for applying a coating to a web-type substrate.
  • a coating may be of the greatest importance; constructing the substrate supporting or guiding rollers according to the invention in the coating apparatus guarantees, as regards the conveying section of the apparatus, that a disadvantageous effect is not exerted on the substrate or the coating applied to the substrate.
  • such an apparatus is, for example, a rotary screen-printing apparatus in which a uniform coating is applied to, for example, a polyester web with the aid of a seamless nickel screen-printing stencil.
  • it may also comprise, for example, drying units in order to be able to subject the layer or layers applied to a drying operation.
  • Figure 1a 1 indicates in partial section the body of a roller or a metallic seamless sleeve, while 2 and 3 indicate the surface structure situated on the surface of the roller or sleeve. From Figure 1b it can be seen in partial plan view that the surface structure comprises spherules 2 with gaps 3, while the spherules are arranged in equilateral triangle structure.
  • the regular structure shown here is not a necessity; a rough nature may also be given to the surface of a roller or sleeve by, for example, abrasion, sandblasting, beadblasting or shot peening, in which case the peak-to-valley height will expediently have a value Ra of up to 12.5 micrometer.
  • a normal smooth roller or a metal sleeve obtained by electrodeposition such as a nickel sleeve will have a peak-to-valley height Ra ⁇ 0.2 micrometer.
  • Figure 2a indicates that cavities 5 have been formed in the roller body or sleeve body 4 by etching. It will be possible for the width and depth and also the pattern configuration of the grooves 5 to be chosen as a function of the application.
  • Figure 3 indicates that the roller body or sleeve body 7 is provided with a structure of arbitrarily arranged spherules 6, such spherules being joined to the surface of the roller or sleeve by cementing. It is pointed out that, with such an embodiment, a calibration operation should additionally be carried out subsequent to forming the surface structure layer in order to provide, in this way, the roller with true running; the calibration also serves to guarantee that all the spherular components have one and the same height above the surface of the roller or sleeve.
  • Figure 3b indicates the situation in Figure 3a in plan view, as was also the case in Figure 2b in relation to Figure 2a.
  • Figure 4a 9 indicates a groove in the surface of a roller or sleeve, the elevations between the grooves being indicated by 8. From Figure 4b it is evident that the grooves extend helically in the longitudinal direction of the roller, assuming that the axial direction of the roller extends in the direction of the arrow which is indicated in Figure 4b. Incidentally, it is pointed out that in all the figures given above, an axial direction of the roller or sleeve is assumed which is identical to the direction of the arrow in Figure 4b.
  • Figure 4c indicates that the tips of the material 8 between the grooves 9 are rounded off by additional operational steps such as bright pickling, latching, etching or the like.
  • Figure 5 indicates that a surface structure can be obtained by machining, with a milling wheel, the surface of the roller or a sleeve to be used, as a result of which recesses 10 are obtained which are connected to one another by means of channels 10', with the result that a possibility of mutually displacing gas between the recesses is nevertheless ensured.
  • the forming of recesses can, of course, also be conceived by means of electron beam engraving or laser beam engraving in metal.
  • Figures 6 and 7 indicate two very attractive embodiments of a surface structure of a roller or sleeve in which the structures are formed as mirror images with respect to each other around the centre of a roller.
  • a groove pattern 13 is shown in part 11 on the right-hand side of the centre, the pattern 13 being helically arranged in such a manner that, on rotating a roller in the correct direction, a gas transport takes place to the right in the drawing.
  • the groove pattern is oppositely directed, as a result of which, with the same rotation, a gas transport can occur to the left.
  • Such embodiments arranged in mirror form appear to be very advantageous if, apart from a controlled pressure build-up of the gas, there has to be a requirement for effects which have to promote positional accuracy of the substrate during movement thereof.
  • an improved positional accuracy of the substrate with respect to the roller is obtained, in which case a certain flattening side effect on the substrate sheet is also observed, and this is extremely desirable for specific materials and low sheet thicknesses.
  • use may advantageously be made of etching techniques using photoresist patterns, it also being possible for a groove depth variation to be achieved by using special techniques.
  • recourse may also be made to the abovementioned beam machining techniques using electron or laser beams for forming the groove patterns.
  • Figure 8 shows a surface structure of a roller 19 in which circumferential grooves 20 are present. In this case no displacement of air takes place towards the ends of the roller; nevertheless, suitable dimensioning of the grooves can guarantee continuous contact of the substrate with the material between the grooves 20.
  • Figure 9 shows a situation in which the surface 21 is provided with axially extending grooves 22.
  • Figures 10 and 11 indicate that a surface structure can be obtained on a roller or sleeve with the aid of electroplating techniques.
  • Figure 10 indicates a roller body or sleeve body 23, while 25 indicates an electroplated metal deposit which has grown between photoresist regions which were previously situated at the positions which are now indicated by 24.
  • an electroplated deposit 27 is formed on a roller body or sleeve body 26 with an overhang 28, the overhang having taken place over photoresist areas which were situated at the positions indicated by 29.
  • Figure 12 indicates diagrammatically how a sleeve 30 can be fitted around the surface of a roller 32 in a manner such as is indicated in the abovementioned European Patent Specification 0,160,341.
  • the roller is a thick-walled hollow roller which is provided with supporting axles 35 and 36 which have disc-type sections 37 which are pushed in a clamping manner into the ends of the cylinder.
  • the disc-type sections 37 rest against a collar at the inside of the cylinder.
  • One of the ends of the cylinder 32 is provided with a number of radial openings 38 which debouch at the outside circumference of the cylinder and which are in communication with axially directed channels 40 which are provided in the left-hand disc-type section 37.
  • Each of the channels 40 has a blind end or a sealing plug 39; the other end of the channels 40 is in communication with the internal space 33 of the supporting cylinder 32.
  • the disc-type section 37 at the right-hand side of the cylinder has at least one axially directed channel 34 which is, on the one hand, in communication with the space 33 and, on the other hand, with a connecting nipple 41.
  • the nipple 41 can be connected via a hose, which is not shown, with a source, which is equally not depicted, of the medium, usually compressed air.
  • the outermost section of the cylinder 32 is chamfered, with the result that the sleeve 30 can be pushed over the chamfered part up to the openings 38.
  • a pressurized medium is then fed into the space 33 via the connection 41 and the channel 34 in a manner such that the sleeve 30 is expanded elastically and, as a result, can be pushed further over the supporting cylinder 32.
  • the pressurized medium has the double function of expanding the sleeve 30 somewhat and at the same time acting as a lubricant in pushing the sleeve over the supporting cylinder.
  • a connection to the source of pressurized medium can be broken and this medium leaks away, after which the sleeve 30 is situated on the supporting cylinder 32 in a clamping manner.
  • a broken line on the surface of the supporting cylinder 32 indicates that the outside of the cylinder is chromium-plated or covered with a thin chromium-plated cuff which serves to provide the surface of such a cylinder with adequate wear resistance, with the result that it can be used many times.
  • rollers or sleeves to be used according to the invention it may be pointed out that, in general, a high degree of wear resistance will be aimed at which, on the one hand, can be achieved by using a wear-resistant material with low coefficient of friction such as polytetrafuoroethylene; on the other hand a wear-resistant material may also be used with a high hardness.
  • a wear-resistant material with low coefficient of friction such as polytetrafuoroethylene
  • a wear-resistant material may also be used with a high hardness.
  • Ion implantation technique CVD (chemical vapour deposition) and PVD (physical vapour deposition) may also be used to provide wear-resistant properties at the surface of a roller or sleeve.
  • CVD chemical vapour deposition
  • PVD physical vapour deposition
  • titanium nitride is useful. Said material may be applied to the surface of a sleeve having a surface structure by sputtering techniques. Titanium nitride may be sputtered directly from a titanium nitride target or formed by reactive sputtering of titanium from a titanium target in a nitrogen-gas comprising atmosphere.
  • Other layers of high hardness can furthermore be deposited, for example, by electroplating or by electro-lessplating such as, for example, a chromium layer or a nickel-phosphorus layer.
  • electroplating or by electro-lessplating
  • a hardness which exceeds 500° Vickers will give good results.
  • Figure 13 shows the situation where a roller according to the invention comprises a sleeve 52 received between end rings, which sleeve may be a closed sleeve or a sleeve having perforations which is provided with an additional surface structure.
  • the end rings are in this case stencil end rings 50 such as are used, for example, in rotary screen-printing machines.
  • the ends 53, 54 of the rings are constructed so that they can be received in the stencil heads of the apparatus in, for example, a bayonet connection.
  • the rings can exert an axial stress in a machine on the sleeve 52; that is not, however, necessary.
  • the end rings 50 and 51 may also be replaced by end rings mounted on a common axle; axial stress can be obtained if necessary by pushing the rings apart on the axle.
  • a filling of a low density material may be provided such as a plastic material, in particular a cured foam plastic or a pressurized gas to impart rigidity to the roller.
  • Figure 14 shows the situation where the sleeve 52 is a perforated sleeve such as a rotary screen-printing stencil.
  • the axle 56 in this case carries a labyrinth 57 in order to achieve a predetermined pneumatic pressure profile over the length of the sleeve.
  • a suitable axial profile comprising underpressure and/of overpressure locations can be established.
  • An underpressure may be desirable in cases of high web transportation speeds at low web tension; a slight degree of overpressure may be expedient when working at low web speeds at high web tension.

Landscapes

  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Advancing Webs (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)

Claims (12)

  1. Rouleau destiné à être utilisé pour le guidage et/ou le support d'un substrat mobile sous forme de bande, dans un appareil pour son traitement, dans lequel la surface du dit rouleau qui vient en contact avec le substrat est munie d'une structure de surface (3, 5, 6, 9) dont le résultat est qu'un volume prédéterminé de gaz est enfermé entre le substrat qui est en contact avec la structure de surface (3, 5, 6, 9) et le rouleau, et qu'une forme qui est telle que le dit volume de gaz reste essentiellement le même aux vitesses de déplacement du substrat utilisées, est donnée à la structure de surface, caractérisé en ce que le rouleau comporte un manchon métallique sans soudure (52) à sa surface qui entre en contact avec le substrat et que la structure de surface (3, 5, 6, 9) est présente sur la surface du manchon (52), le dit manchon étant monté de telle sorte que son échange soit permis.
  2. Rouleau selon la revendication 1, caractérisé en ce que le manchon (52) est un manchon en nickel sans soudure ayant une épaisseur entre 150 et 500 micromètres, en particulier entre 150 et 250 micromètres.
  3. Rouleau selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que la structure de surface (3, 5, 6, 9) est munie d'un revêtement ayant une résistance à l'usure élevée.
  4. Rouleau selon la revendication 3, caractérisé en ce que le revêtement comprend un matériau résistant à l'usure choisi parmi :
    - les nitrures tels que de titane ou de bore,
    - les carbures tels que de silicium, de bore, de tungstène et de titane,
    - le verre et le quartz.
  5. Rouleau selon la revendication 3, caractérisé en ce que le revêtement comprend une couche d'un métal ayant une résistance à l'usure et une dureté élevées telle qu'une couche de nickel - phosphore ou de chrome.
  6. Rouleau selon la revendication 3, caractérisé en ce que le revêtement comprend une couche de polytétrafluoroéthylène.
  7. Rouleau selon l'une ou plusieurs des revendications 1 à 6, caractérisé en ce que le manchon (52) est monté entre deux anneaux ou flasques d'extrémité (50, 51) fixés.
  8. Rouleau selon la revendication 7, caractérisé en ce que le manchon (52) est un manchon muni de perforations.
  9. Rouleau selon les revendications 7 ou 8, caractérisé en ce que des moyens (57) sont présents à l'intérieur du manchon (52) pour établir un profil de pression pneumatique prédéterminé dans la direction axiale.
  10. Rouleau selon la revendication 7, caractérisé en ce que l'introduction d'un matériau à faible densité à l'intérieur du manchon (52) confère au rouleau de la rigidité.
  11. Rouleau selon la revendication 10, caractérisé en ce que le manchon (52) a été rempli par un matériau choisi parmi une mousse de matière plastique réticulée et un gaz pressurisé.
  12. Rouleau selon l'une ou plusieurs des revendications 1-6, caractérisé en ce que le manchon (30) est porté par serrage par un cylindre support (32) muni d'un essieu (35, 36, 37).
EP90201247A 1989-05-29 1990-05-16 Rouleau de support ou de guidage Expired - Lifetime EP0401886B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90201247T ATE94844T1 (de) 1989-05-29 1990-05-16 Leit- oder stuetzwalze.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NL8901349A NL8901349A (nl) 1989-05-29 1989-05-29 Ondersteunings- of geleidingswals en inrichting voorzien van een of meer van dergelijke walsen.
NL8901349 1989-05-29
NL9000870 1990-04-12
NL9000870A NL9000870A (nl) 1989-05-29 1990-04-12 Ondersteunings- of geleidingswals en inrichting voorzien van een of meer van dergelijke walsen.

Publications (2)

Publication Number Publication Date
EP0401886A1 EP0401886A1 (fr) 1990-12-12
EP0401886B1 true EP0401886B1 (fr) 1993-09-22

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ID=26646534

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90201247A Expired - Lifetime EP0401886B1 (fr) 1989-05-29 1990-05-16 Rouleau de support ou de guidage

Country Status (11)

Country Link
EP (1) EP0401886B1 (fr)
JP (1) JPH0323147A (fr)
KR (1) KR900017886A (fr)
AR (1) AR245076A1 (fr)
AU (1) AU636888B2 (fr)
BR (1) BR9002523A (fr)
CA (1) CA2017142A1 (fr)
DE (1) DE69003454T2 (fr)
FI (1) FI902403A0 (fr)
NL (1) NL9000870A (fr)
NO (1) NO902277L (fr)

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DE69222269T2 (de) * 1991-12-04 1998-02-12 Canon Kk Führungsglied und Gerät, das dieses verwendet
JP3301449B2 (ja) * 1992-12-14 2002-07-15 日本たばこ産業株式会社 ロッド材のホッパ装置
JPH06179555A (ja) * 1992-12-14 1994-06-28 Japan Tobacco Inc 帯状材の走行方向変換装置
US5520601A (en) * 1995-03-13 1996-05-28 Eastman Kodak Company Ceramic rollers for conveyance of photographic films and paper polymeric webs
US6447179B1 (en) 1997-03-24 2002-09-10 Fuji Photo Film Co., Ltd. Conveying roller for photosensitive material and method of producing the same
EP0867393B8 (fr) * 1997-03-24 2003-08-20 Fuji Photo Film Co., Ltd. Rouleau de transport pour matériau photosensible et procédé d'obtention dudit rouleau
DE19940607A1 (de) * 1999-08-27 2001-04-05 Kuesters Eduard Maschf Verfahren zur Herstellung eines dünnwandigen Rohrs und dafür geeignete Vorrichtung
JP4811869B2 (ja) * 2005-12-08 2011-11-09 シンジーテック株式会社 鳴き防止ロール
DE202009012298U1 (de) * 2009-09-11 2009-11-19 Voith Patent Gmbh Leitwalze
DE102010000211A1 (de) * 2010-01-26 2011-07-28 Atotech Deutschland GmbH, 90537 Vorrichtung zum Transport von plattenförmigen Substraten in einer Anlage zur chemischen und/oder elektrochemischen Behandlung
KR20140107256A (ko) * 2011-12-27 2014-09-04 도레이 카부시키가이샤 미다공 플라스틱 필름롤의 제조 장치 및 제조 방법
DE202016009195U1 (de) 2016-02-15 2023-12-04 Ahauser Gummiwalzen Lammers Gmbh & Co. Kg Verbundwalze mit Kavität
DE102016102567B4 (de) * 2016-02-15 2024-05-16 Ahauser Gummiwalzen Lammers Gmbh & Co. Kg Verbundwalze und Verwendung der Verbundwalze
CN113881914A (zh) * 2021-09-28 2022-01-04 德清创智科技股份有限公司 一种高摩擦力过渡导辊的涂层工艺
DE102022118390A1 (de) 2022-07-22 2024-01-25 Manroland Goss Web Systems Gmbh Additiv gefertigte Leitwalze

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GB1056372A (en) * 1964-02-03 1967-01-25 Beloit Eastern Corp Guide roller assembly for a paper web handling machine

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Also Published As

Publication number Publication date
AR245076A1 (es) 1993-12-30
CA2017142A1 (fr) 1990-11-29
KR900017886A (ko) 1990-12-20
FI902403A0 (fi) 1990-05-14
DE69003454T2 (de) 1994-04-14
JPH0323147A (ja) 1991-01-31
NL9000870A (nl) 1990-12-17
NO902277D0 (no) 1990-05-23
EP0401886A1 (fr) 1990-12-12
NO902277L (no) 1990-11-30
BR9002523A (pt) 1991-08-13
DE69003454D1 (de) 1993-10-28
AU5591090A (en) 1990-11-29
AU636888B2 (en) 1993-05-13

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