EP0955160B1 - Verfahren zum Herstellen einer Hülse, insbesondere für die Druckindustrie - Google Patents
Verfahren zum Herstellen einer Hülse, insbesondere für die Druckindustrie Download PDFInfo
- Publication number
- EP0955160B1 EP0955160B1 EP99108139A EP99108139A EP0955160B1 EP 0955160 B1 EP0955160 B1 EP 0955160B1 EP 99108139 A EP99108139 A EP 99108139A EP 99108139 A EP99108139 A EP 99108139A EP 0955160 B1 EP0955160 B1 EP 0955160B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller core
- tube
- production roller
- gap
- production
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N6/00—Mounting boards; Sleeves Make-ready devices, e.g. underlays, overlays; Attaching by chemical means, e.g. vulcanising
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
- B41C1/18—Curved printing formes or printing cylinders
- B41C1/182—Sleeves; Endless belts
Definitions
- the invention relates to a method for producing a sleeve, in particular for the printing industry, with an essentially inelastic outer jacket and an elastic one and compressible inner jacket, in which the sleeve on a production roll core is produced as in the introductory part of claim 1 is described.
- the sleeves can be used, for example, as gravure, flexographic or embossing sleeves.
- a pneumatic method For the removal or re-installation of sleeves on a roll core is preferred applied a pneumatic method.
- a pneumatic method For this purpose it is on the inside the sleeve an inner jacket or an expansion layer made of an elastic and compressible Material arranged.
- This inner jacket or the expansion layer between the roll core and the outer jacket of the sleeve is necessary because the sleeve is on the one hand when being pulled up or pulling off must not be damaged by excessive pressures and on the other the pressure of the pneumatic means, which is generally through radial passages in the roller core between the outer shell of the roller core and the inner shell of the sleeve will have to take effect on the entire surface in order to remove it easily to allow the sleeve.
- the inner jacket or the stretch layer have the Task to compensate for unevenness on the inside of a tubular sleeve.
- connection of the sleeve to the carrier core can be done by means of frictional engagement or positive engagement, with the Frictional connection the sleeve is made on a core that is slightly has a smaller diameter than the later carrier core.
- a release agent is first applied to the roll core on which the expansion layer is then built up. After drying the Expansion layer, the surface of which must be treated and / or sanded off before in one a further step the outer jacket of the sleeve can be applied.
- the process is very complex, especially because the expansion layer has hardened must be maintained before the further construction of the sleeve can take place. Further is the step of processing the expansion layer after it has hardened, e.g. grinding, very time consuming.
- GB-A-2 051 681 used to formulate the introductory part of claim 1 discloses a method of making a roll in which, as in context with Figures 11 and 12 of GB-A-2 051 681, essentially one inelastic tube is wound on a manufacturing roll core, the tube one Has an inner diameter that is larger than the outer diameter of the production roll core, so that a space is created between them.
- the pipe is so on the Manufacturing roll core, centered that the distance between the pipe and the manufacturing roll core is essentially the same. Then one gets the elastic and compressible inner jacket forming mass injected into this space, which can harden there.
- the expansion layer or the inner jacket becomes the sleeve is formed and at the same time a connection with the outer jacket of the Sleeve, an essentially inelastic tube.
- the process flow also creates problems in the connection of the inner jacket and the outer jacket avoided, since the inner jacket or the expansion layer when injecting directly with the thermoplastic or metallic tube can connect.
- the expansion layer can moreover after completion of all necessary process steps cure so that there is not sufficient between the individual process steps Curing must be maintained. This speeds up the manufacturing process, In particular, the efficiency of the machines used is improved, since one The method according to the invention does not require any special machinery during curing necessary is.
- venting devices can be closed and are closed as soon as the cavity between the tube and the production roll core is completely filled with the mass forming the inner jacket. For one thing a controlled and trouble-free ventilation of the space ensured, furthermore the mass forming the inner jacket is prevented from escaping from the intermediate space and created the possibility of increasing the mass in the space as desired compress in which after closing the venting devices wide mass is injected.
- the injection forms the one forming the inner jacket Mass on one side of the space between the production roll core and the tube instead, while venting on the opposite side, in the direction of the longitudinal axis of the roller core, is carried out, which enables a particularly controlled ventilation and prevents unwanted air pockets in the expansion layer or in the inner jacket remain.
- the above-mentioned ventilation devices and / or injection devices are arranged in a centering device that the tube in one maintains predetermined, uniform distance from the manufacturing roll core.
- the finished sleeve is preferably removed pneumatically by a liquid or gaseous medium is pressed into the roll core and by radial Bores in the outer surface of the production roll core exerts pressure on the sleeve.
- the finished sleeve can be pulled off the production roll core, without higher pressures or frictional forces occurring which damage the inner jacket or the expansion layer.
- the inside of the inner jacket is covered by a structured surface of the production roll core formed with a structure.
- the production roll core preferably consists of metallic materials, in particular Aluminum or steel. Depending on the requirements, other materials can also be used the manufacturing roll core are used, these are especially after their durability or durability, but also according to their weight.
- Closed-cell cells are particularly suitable as an elastic and compressible mass for the inner jacket Foams in which there are additional air bubbles and / or expanded polystyrene beads can be introduced.
- Such a material shows excellent elasticity and Compression values, while a secure connection between the inner jacket and the outer casing of the sleeve remains ensured. Even processing this Foaming is very unproblematic.
- particles can be introduced into the mass forming the inner jacket in order to to make the inner jacket electrically conductive.
- the inner jacket consists of two or more layers.
- Such a multilayer structure leads to a higher flexibility of adaptation Sleeve to the desired task, so that the more complex manufacturing process is accepted becomes.
- These other coatings are particularly effective preferably made of polyurethane (PU), polytetra fluorethylene (PTFE) or copper and allow a problem-free incorporation of a functional profile and also fulfill a protective function for the underlying layers of the sleeve.
- an additional functional layer is glued on, whereby the usual manufacturing step of attaching a functional profile, for example by direct structuring using a laser beam or by ablation from the ionized state, is significantly simplified.
- the functional layer can also be a wear protection layer, for example.
- Breakthroughs, bores and the like through the sleeve are also intended under the functional profile be understood. It is also possible to retrofit the sleeve with Arteines perforations To provide sieves. Then such a sleeve can be used, for example, as a rotary screen Screening of bulk goods or as a suction cylinder, for example to suck films or to Pulling water out of paper can be used.
- the production roll core has a conical Course on, which in particular the pneumatic pulling or removing the sleeve is simplified by the roll core.
- a conical course can also ever depending on the field of application for later use.
- the production roll core is directly as Carrier core used for the use of the manufactured sleeve. This will take the step of Removal of the sleeve is unnecessary, which also leads to a simplified processing process and for an immediate introduction of the manufactured sleeve into the manufacturing process leads.
- All known methods can also be used for structuring the sleeve. These include in particular the laser direct structuring already mentioned, both of which can be variable in area as well as depth, also the abovementioned removal from the ionized state or a mechanical engraving etc.
- FIG. 1 shows a cross section by an embodiment of a system showing a sleeve according to the invention Manufactures method, explained in more detail.
- a roll core 1 is shown, the compressed air connection 2, through the compressed air pressed as one of the possible liquid or gaseous media in the roll core and has a radial bore 3 in the outer jacket of the roll core 1, through which the compressed air between the inner jacket or the expansion layer 60, 65 and the production roll core 1 for pneumatic removal or mounting of the sleeve is pressed.
- thermoplastic tube 20 is used here as the inelastic tube, which means Centering devices 30 at a uniform distance from the production roll core 1 is held.
- the methods for applying the surfaces or layers can vary depending on the application arbitrarily selected or used in combination.
- injection nozzles 40 are formed in the centering devices 30, which are direct in connection with the space between the thermoplastic tube 20 and the Roll core 1 stand, on the other hand vent nozzles 50 on the opposite side of the space so that a controlled ventilation of the space during the injection of the material forming the inner jacket 60, 65 is ensured.
- the inner jacket or the expansion layer 60, 65 has already been injected, the Expansion layer is an elastomeric matrix 60, into which expanded polystyrene beads 65 are introduced have been.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Glass Compositions (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Printing Plates And Materials Therefor (AREA)
Description
Claims (20)
- Verfahren zum Herstellen einer Hülse, insbesondere für die Druckindustrie, mit einem im wesentlichen unelastischen Außenmantel (20) und einem elastischen und kompressiblen Innenmantel (60, 65), bei dem die Hülse auf einem Fertigungswalzenkern (1) hergestellt wird, mit den SchrittenAufziehen eines im wesentlichen unelastischen Rohres (20) auf den Fertigungswalzenkern (1), wobei das Rohr (20) einen Innendurchmesser aufweist, der größer ist als der Außendurchmesser des Fertigungswalzenkernes (1), so daß zwischen diesen ein Zwischenraum entsteht;Zentrieren des Rohres (20) auf dem Fertigungswalzenkern (1), so daß ein im wesentlichen gleicher Abstand zwischen Rohr (20) und Fertigungswalzenkern (1) entsteht;Injektion einer den elastischen und kompressiblen Innenmantel bildenden Masse (60, 65) in den Zwischenraum zwischen Rohr (20) und Fertigungswalzenkern (1) undAushärten der injizierten Masse (60, 65),
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Injektion an der einen Seite des Zwischenraumes zwischen Fertigungswalzenkem (1) und Rohr (20) erfolgt, während die Entlüftung an der gegenüberliegenden Seite durchgeführt wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Entlüftungsvorrichtungen (50) und/oder Injektionsvorrichtungen (40) in einer Zentriervorrichtung (30) für das Rohr (20) angeordnet sind.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Entnahme der fertiggestellten Hülse pneumatisch durchgeführt wird, vorzugsweise mittels Druckluft.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß zur Entnahme der Hülse ein flüssiges oder gasförmiges Medium durch einen Anschluß (2) in den Walzenkern (1) gedrückt wird und durch radiale Bohrungen (3) in der Mantelfläche des Fertigungswalzenkernes (1) Druck auf die Hülse ausübt.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Innenseite des Innenmantels durch eine strukturierte Oberfläche des Fertigungswalzenkernes (1) mit einer Struktur ausgebildet wird.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Fertigungswalzenkern (1) aus metallischen Materialien, insbesondere Aluminium oder Stahl, besteht.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß als Masse (60, 65) für den Innenmantel geschlossenzellige Schäume eingesetzt werden.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß in die den Innenmantel bildenden Masse (60) zusätzlich Luftbläschen und/oder expandierte Polystyrolperlen (65) eingebracht werden.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß zusätzlich Partikel in die den Innenmantel bildende Masse (60, 65) eingebracht werden, die den Innenmantel leitfähig machen.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Innenmantel aus zwei oder mehr Schichten besteht.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das im wesentlichen unelastische Rohr (20) aus einem metallischen oder einem thermoplastischen Material besteht.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß auf den Außenmantel (20) ein Funktionsprofil eingebracht wird.
- Verfahren nach Anspruch 13, dadurch gekennzeichnet, daß das Funktionsprofil durch eine flächen- und/oder tiefenvariable Direkstrukturierung mit einem Laserstrahl und/oder durch ein Abtragen aus einem ionisierten Zustand und/oder durch eine mechanische Gravur eingebracht wird.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß auf den Außenmantel (20) zusätzlich weitere Beschichtungen aufgebracht werden.
- Verfahren nach Anspruch 15, dadurch gekennzeichnet, daß die zusätzlichen Beschichtungen aus Polyurethan (PU), Polytetrafluorethylen (PTFE) oder Kupfer bestehen.
- Verfahren nach Anspruch 15 oder 16, dadurch gekennzeichnet, daß die Beschichtungen mittels eines Spritzverfahrens, thermischen Spritzens, Wirbelsintem, Aufgießen oder durch den Einsatz von Schrumpfschläuchen aufgebracht werden.
- Verfahren nach Anspruch 15, dadurch gekennzeichnet, daß zusätzlich eine Funktionsschicht aufgeklebt wird.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Fertigungswalzenkern (1) einen konischen Verlauf aufweist.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Fertigungswalzenkern (1) als Trägerkern für den Einsatz der gefertigten Hülse verwendet wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19820498A DE19820498C2 (de) | 1998-05-07 | 1998-05-07 | Verfahren zum Herstellen einer Hülse, insbesondere für die Druckindustrie |
DE19820498 | 1998-05-07 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0955160A2 EP0955160A2 (de) | 1999-11-10 |
EP0955160A3 EP0955160A3 (de) | 2000-02-23 |
EP0955160B1 true EP0955160B1 (de) | 2004-01-21 |
Family
ID=7867015
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99108139A Expired - Lifetime EP0955160B1 (de) | 1998-05-07 | 1999-04-26 | Verfahren zum Herstellen einer Hülse, insbesondere für die Druckindustrie |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0955160B1 (de) |
AT (1) | ATE258113T1 (de) |
DE (2) | DE19820498C2 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2801833B1 (fr) * | 1999-12-03 | 2003-05-16 | Rollin Sa | Un manchon comprenant une couche de solidarisation sur un cylindre support metallique |
DE10127912B4 (de) * | 2001-06-08 | 2011-05-12 | Eastman Kodak Co. | Manschette für einen Zylinder einer Druckmaschine |
DE20204412U1 (de) | 2002-03-19 | 2002-05-29 | Polywest Kunststofftechnik | Hülse für den Flexodruck |
DE10243183C1 (de) * | 2002-03-19 | 2003-08-21 | Polywest Kunststofftechnik | Hülse für den Flexodruck |
DE10261955A1 (de) * | 2002-03-19 | 2003-11-13 | Polywest Kunststofftechnik | Hülse für den Flexodruck |
DE10251616B4 (de) * | 2002-11-06 | 2010-03-11 | Eastman Kodak Co. | Verfahren und Einrichtung zum Herstellen einer Beschichtung eines Druckzylinders |
CN113097943A (zh) * | 2021-03-24 | 2021-07-09 | 来安县友鹏交通设备有限公司 | 一种多层结构的电缆保护管及其生产方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2051681B (en) * | 1979-06-25 | 1983-03-02 | Drg Ltd | Printing rolls |
JPH01163017A (ja) * | 1987-12-03 | 1989-06-27 | Fuji Kako Kk | 硬化性樹脂をライニングしたロールの製造方法 |
JPH0684022B2 (ja) * | 1987-12-29 | 1994-10-26 | キヤノン株式会社 | 弾性ローラの製造方法および成形装置 |
DE19545597C2 (de) * | 1995-12-06 | 1999-01-07 | Polywest Kunststofftechnik | Verfahren zur Herstellung einer Hülse für Druck- oder Rasterwalzen |
US5840386A (en) * | 1996-02-22 | 1998-11-24 | Praxair S.T. Technology, Inc. | Sleeve for a liquid transfer roll and method for producing it |
-
1998
- 1998-05-07 DE DE19820498A patent/DE19820498C2/de not_active Expired - Fee Related
-
1999
- 1999-04-26 AT AT99108139T patent/ATE258113T1/de not_active IP Right Cessation
- 1999-04-26 DE DE59908339T patent/DE59908339D1/de not_active Expired - Lifetime
- 1999-04-26 EP EP99108139A patent/EP0955160B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0955160A2 (de) | 1999-11-10 |
EP0955160A3 (de) | 2000-02-23 |
DE19820498A1 (de) | 1999-11-11 |
DE19820498C2 (de) | 2000-07-06 |
ATE258113T1 (de) | 2004-02-15 |
DE59908339D1 (de) | 2004-02-26 |
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