ES2269956T3 - FIXING PROCEDURE OF A CLICK RING ON A MANDRILE. - Google Patents

FIXING PROCEDURE OF A CLICK RING ON A MANDRILE. Download PDF

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Publication number
ES2269956T3
ES2269956T3 ES03405560T ES03405560T ES2269956T3 ES 2269956 T3 ES2269956 T3 ES 2269956T3 ES 03405560 T ES03405560 T ES 03405560T ES 03405560 T ES03405560 T ES 03405560T ES 2269956 T3 ES2269956 T3 ES 2269956T3
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Spain
Prior art keywords
ring
mandrel
cliché
fixing
procedure
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
ES03405560T
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Spanish (es)
Inventor
Georg Strasser
Edouard Borel
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Bobst Mex SA
Original Assignee
Bobst SA
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Filing date
Publication date
Application filed by Bobst SA filed Critical Bobst SA
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Publication of ES2269956T3 publication Critical patent/ES2269956T3/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41NPRINTING 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
    • B41N6/00Mounting boards; Sleeves Make-ready devices, e.g. underlays, overlays; Attaching by chemical means, e.g. vulcanising
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F27/00Devices for attaching printing elements or formes to supports
    • B41F27/10Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41NPRINTING 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
    • B41N10/00Blankets or like coverings; Coverings for wipers for intaglio printing

Landscapes

  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Clamps And Clips (AREA)
  • Gripping On Spindles (AREA)
  • Moulding By Coating Moulds (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Automatic Assembly (AREA)

Abstract

The method involves placing an intermediate split ring (3) between a mandrel (1) and a ring-plate (2). The intermediate split ring is made up of aluminum having an expansion coefficient greater than a coefficient of brass. The ring-plate and mandrel is made up of brass to cause the blocking of the ring-plate on the mandrel at an operating temperature of the ring-plate.

Description

Procedimiento de fijación de un anillo-cliché sobre un mandril.Procedure for fixing a cliché ring on a mandrel.

La presente invención se relaciona con un procedimiento de fijación de un anillo-cliché sobre un mandril de una prensa rotativa, destinado a ser unido por medios de calentamiento para introducir el anillo cliché a su temperatura de trabajo.The present invention relates to a procedure for fixing a cliché ring on a mandrel of a rotary press, intended to be joined by means heating to introduce the cliché ring at its temperature of work.

La fijación de clichés que trabajan con calor, calentados por transferencia térmica partir de un mandril de una prensa rotativa sobre cual los clichés están fijados, plantea problemas relativamente complejos para resolver y cuyas soluciones conocidas presentan diversos inconvenientes. La fijación de los clichés por tornillos plantea el problema de la fijación de los tornillos en la pared del mandril, siendo éste calentado por una circulación de aceite, de manera que los orificios que reciben los tornillos no deben atravesar la pared del mandril. Además, se trata de una operación que toma tiempo. Para evitar el problema unido a este modo de fijación, se ha propuesto ya rodear el mandril de una estructura en panal en la cual los clichés pueden ser fijados fácilmente en la posición deseada.Fixing clichés that work with heat, heated by thermal transfer from a mandrel of a rotary press on which the clichés are fixed, poses relatively complex problems to solve and whose solutions known have several drawbacks. Fixing the Screw clichés raises the problem of fixing the screws in the mandrel wall, this being heated by a oil circulation, so that the holes that receive the screws must not pass through the mandrel wall. In addition, it is of an operation that takes time. To avoid the problem attached to This fixing method has already been proposed to surround the mandrel of a honeycomb structure in which the clichés can be fixed easily in the desired position.

Si esta última solución permite suprimir el tornillo y facilitar la fijación de los clichés, en cambio se penaliza fuertemente la transferencia térmica entre el mandril calentado y los clichés, en la medida en la cual se reduce fuertemente la superficie de intercambio térmico entre el mandril y los clichés, lo que constituye un inconveniente notable en cuanto al resultado de la prensa rotativa.If this last solution allows to suppress the screw and facilitate the fixation of the clichés, instead strongly penalizes thermal transfer between the mandrel heated and clichés, to the extent that it is reduced strongly the heat exchange surface between the mandrel and the clichés, which constitutes a notable drawback in terms of result of the rotary press.

El documento US-A-2003/0031812 describe un procedimiento según el preámbulo de la reivindicación 1.The document US-A-2003/0031812 describes a method according to the preamble of claim 1.

El objetivo de la presente invención es remediar, al menos en parte, los inconvenientes de las soluciones arriba mencionadas.The objective of the present invention is remedy, at least in part, the drawbacks of the solutions above mentioned.

Para este efecto, esta invención tiene por objeto un procedimiento de fijación de un anillo-cliché sobre un mandril de una prensa rotativa, provisto de medios de calentamiento para introducir el anillo-cliché a su temperatura de trabajo, según la reivindicación 1.For this purpose, this invention has for object a procedure of fixing a cliché ring on a press chuck rotating, provided with heating means to introduce the cliché ring at its working temperature, according to the claim 1.

Las ventajas de esta invención residen esencialmente en el hecho de que por un procedimiento muy simple, se facilita el montaje de los clichés sobre el mandril, siendo su fijación realizada automáticamente durante el calentamiento y se asegura igualmente una transferencia térmica óptima entre el mandril y los clichés durante el funcionamiento de la prensa rotativa.The advantages of this invention reside essentially in the fact that by a very simple procedure,  facilitates the assembly of the clichés on the mandrel, being its fixing done automatically during heating and it also ensures optimal thermal transfer between the mandrel and the cliches during the operation of the rotary press.

Los dibujos anexos ilustran, muy esquemáticamente y a título de ejemplo, una puesta en marcha del procedimiento objeto de la presente invención.The accompanying drawings illustrate, very schematically and by way of example, a start-up of the procedure object of the present invention.

La figura 1 es una vista en corte transversal de la colocación de un anillo-cliché sobre un mandril a temperatura ambiente;Figure 1 is a cross-sectional view of the placement of a cliché ring on a mandrel to room temperature;

La figura 2 es una vista en corte del mismo mandril y del mismo anillo-cliché, calentados a la temperatura de trabajo.Figure 2 is a sectional view thereof. mandrel and of the same cliché ring, heated to the work temperature.

La figura 1 representa un mandril cruzado 1 de una prensa rotativa, en el interior del cual un líquido de calentamiento suministrado por un circuito de calentamiento (no representado) al cual el mandril 1 está destinado a ser unido, está previsto para circular por el calentador. El cliché destinado a ser fijado sobre el mandril se presenta bajo la forma de un anillo 2. Entre este anillo-cliché 2 y el mandril 1 se dispone un anillo intermediario hendido 3.Figure 1 represents a cross mandrel 1 of a rotary press, inside of which a liquid of heating supplied by a heating circuit (no represented) to which the mandrel 1 is intended to be attached, is planned to circulate through the heater. The cliche meant to be fixed on the mandrel is presented in the form of a ring 2. Between this ring-cliché 2 and the mandrel 1 is arranged a split intermediate ring 3.

Como se representa de manera muy exagerada, únicamente con un objetivo didáctico, los juegos 4 y 5 son dispuestos entre el mandril 1 y el anillo intermediario hendido 3 de una parte, y entre el anillo intermediario hendido 3 y el anillo-cliché 2, de otra.As it is represented very exaggeratedly, only with a didactic objective, games 4 and 5 are arranged between the mandrel 1 and the split intermediate ring 3 of one part, and between the cleft intermediate ring 3 and the ring-cliché 2, of another.

Dado que el anillo intermediario 3 es hendido, se podría no tener más que un juego entre este último y el anillo-cliché 2. En la realidad, el juego total entre el mandril 1 y el anillo-cliché 2 es del orden de algunas centésimas de milímetro. Este juego depende de los materiales utilizados para los tres elementos, mandril 1, anillo intermediario hendido 3 y anillo-cliché 2, así como del diámetro del mandril 1, el cual podría típicamente variar entre 127 mm y 254 mm.Since the intermediate ring 3 is cleft, you could not have more than one game between the latter and the ring-cliché 2. In reality, the total game between the mandrel 1 and the cliché ring 2 is of the order of a few hundredths of a millimeter. This game depends on the Materials used for the three elements, mandrel 1, ring Cleft intermediary 3 and ring-cliché 2, as well as of the diameter of the mandrel 1, which could typically vary between 127 mm and 254 mm.

Según una forma de puesta en marcha del procedimiento de fijación, el mandril 1 es en acero, el anillo cliché 2 es en latón y el anillo intermedio hendido 3 es en aluminio. Dado que el coeficiente de dilatación del aluminio es superior al del acero y éste al del latón, el o los juegos entre el mandril 1 y el anillo intermedio hendido 3 y aquél entre éste último y el anillo cliché 2 desaparece y provoca la fijación del anillo-cliché 2 sobre el mandril 1.According to a way of starting the fixing procedure, the mandrel 1 is in steel, the ring cliché 2 is in brass and the split middle ring 3 is in aluminum. Since the coefficient of expansion of aluminum is superior to that of steel and this to that of brass, the game or games between the mandrel 1 and the cleft intermediate ring 3 and that between it last and the cliché ring 2 disappears and causes the fixation of the cliché ring 2 on mandrel 1.

En un ejemplo particular, el mandril 1 tenía un diámetro de 140 mm, el anillo intermedio hendido un diámetro externo de 156 mm y el anillo-cliché 2 un diámetro externo de 190 mm. El juego total entre ellos estaba comprendido entre 3 y 5 centésimas de milímetro. Este juego ha desaparecido para una temperatura de mandril 1 de 150ºC, de manera que se obtiene un bloqueo perfecto del anillo-cliché 2 sobre el mandril 1 a la temperatura de trabajo que se sitúa alrededor de 200ºC. La hendidura introducida sobre la barra intermedia y hendida 3 sirve para absorber la dilatación circular de este anillo intermedio durante el calentamiento del mandril 1.In a particular example, mandrel 1 had a diameter 140 mm, the intermediate ring split a diameter external 156 mm and ring-cliché 2 a diameter external 190 mm. The total game between them was understood between 3 and 5 hundredths of a millimeter. This game has disappeared for a mandrel temperature 1 of 150 ° C, so that a perfect lock of the ring-cliché 2 on the mandrel 1 at the working temperature that is around 200 ° C The slit introduced on the intermediate and split bar 3 serves to absorb the circular expansion of this ring intermediate during heating of mandrel 1.

De manera general, el o los juegos introducidos entre el mandril 1, el anillo-cliché 2 de una parte y el anillo intermedio hendido 3 de otra parte, debe o deben ser inferiores a la diferencia de dilatación entre este anillo intermedio 3 y las otras dos piezas, para permitir al diferencial de dilatación de este anillo intermedio suprimir este o estos juegos y asegurar el bloqueo del anillo-cliché 2 sobre el mandril 1.In general, the game or games introduced between the mandrel 1, the ring-cliché 2 of a part and the cleft intermediate ring 3 from another part, must or must be less than the difference in expansion between this ring intermediate 3 and the other two pieces, to allow the differential of dilation of this intermediate ring suppress this or these games and ensure the blocking of the ring-cliché 2 on the mandrel 1.

Gracias a este procedimiento de fijación, el montaje de los clichés sobre el mandril es extremadamente fácil dado el o los juegos que existen entre los diferentes elementos del ensamblaje. Incluso si ningún juego está introducido entre el mandril 1 y el anillo intermediario hendido 3, el hecho de que este anillo intermediario sea hendido permite su colocación cómoda. La fijación de tres elementos del conjunto asegura además una transferencia térmica óptima entre el mandril 1 y los clichés solidarios de los anillos clichés, esto tanto más que el anillo intermedio hendido 3 es en aluminio.Thanks to this fixing procedure, the mounting the clichés on the mandrel is extremely easy given the game or games that exist between the different elements of the assembly Even if no game is entered between the mandrel 1 and the split middle ring 3, the fact that this Intermediate ring is cleft allows comfortable placement. The fixing three elements of the set also ensures a optimal thermal transfer between mandrel 1 and clichés solidarity of the clichés rings, this so much more than the ring Intermediate split 3 is in aluminum.

Claims (3)

1. Procedimiento de fijación de un anillo-cliché sobre un mandril de una prensa rotativa, destinado a ser unido con medios de calentamiento para introducir el anillo-cliché a su temperatura de trabajo, caracterizado porque se interpone entre este mandril (1) y este anillo-cliché (2) un anillo intermedio hendido (3) en un material en el cual el coeficiente de dilatación es superior al de los materiales en los cuales están realizados el dicho mandril (1) y el dicho anillo-cliché (2), para provocar el bloqueo del anillo-cliché (2) sobre el mandril (1) a la temperatura de trabajo de este anillo-cliché (2).1. Procedure for fixing a cliché ring on a mandrel of a rotating press, intended to be joined with heating means to introduce the cliché ring at its working temperature, characterized in that it interposes between this mandrel (1) and this cliché ring (2) a cleft intermediate ring (3) in a material in which the expansion coefficient is higher than the materials in which said mandrel (1) and said cliché ring (2) are made, to cause the cliché ring (2) to be blocked on the mandrel (1) at the working temperature of this cliché ring (2). 2. Procedimiento de fijación según la reivindicación 1 según el cual se realiza el dicho mandril (1), el dicho anillo intermedio hendido (3) y el dicho anillo-cliché (2) introduciendo un juego a temperatura ambiente, inferior a la dilatación térmica radial diferencial entre el mandril (1) y el anillo cliché (2), de una parte y el anillo intermedio hendido, de otra parte.2. Fixing procedure according to claim 1 according to which said mandrel (1) is made, the said cleft intermediate ring (3) and said ring-cliché (2) introducing a game to ambient temperature, lower than radial thermal expansion differential between the mandrel (1) and the cliché ring (2), of a part and the split middle ring, from another part. 3. Procedimiento según una de las reivindicaciones precedentes, según el cual se forma el dicho mandril (1) en acero, el anillo-cliché (2) en latón y el anillo intermedio (3) en aluminio.3. Procedure according to one of the preceding claims, according to which said saying is formed mandrel (1) in steel, ring-cliché (2) in brass and the intermediate ring (3) in aluminum.
ES03405560T 2003-07-25 2003-07-25 FIXING PROCEDURE OF A CLICK RING ON A MANDRILE. Expired - Lifetime ES2269956T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03405560A EP1500505B1 (en) 2003-07-25 2003-07-25 Method for tightening a sleeve blanket on a mandrel

Publications (1)

Publication Number Publication Date
ES2269956T3 true ES2269956T3 (en) 2007-04-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
ES03405560T Expired - Lifetime ES2269956T3 (en) 2003-07-25 2003-07-25 FIXING PROCEDURE OF A CLICK RING ON A MANDRILE.

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EP (1) EP1500505B1 (en)
AT (1) ATE334821T1 (en)
DE (1) DE60307261T2 (en)
ES (1) ES2269956T3 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2763888B1 (en) * 1997-05-28 1999-07-16 Rollin Sa IMPROVED SLEEVE FOR A CYLINDER OF A PRINTING MACHINE OR THE LIKE AND METHOD FOR FITTING THEREOF
FR2801833B1 (en) * 1999-12-03 2003-05-16 Rollin Sa A SLEEVE COMPRISING A SOLIDARIZATION LAYER ON A METAL SUPPORT CYLINDER
US6389965B1 (en) * 1999-12-21 2002-05-21 Heidelberger Druckmaschinen Ag Tubular printing blanket with tubular isotropic reinforcing layer
US6640711B2 (en) * 2002-01-15 2003-11-04 Michael A. Smoot Bridge mandrel for use as a repeat builder in a printing machine

Also Published As

Publication number Publication date
EP1500505A1 (en) 2005-01-26
ATE334821T1 (en) 2006-08-15
EP1500505B1 (en) 2006-08-02
DE60307261D1 (en) 2006-09-14
DE60307261T2 (en) 2007-07-26

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