DE2309101A1 - METHOD AND DEVICE FOR MARKING SECTIONS OF A FLEXIBLE FLAT MATERIAL TRAIL - Google Patents

Description

Dipl.-Ing. H. MITSCHERLICH ₈ MONKS 22

Dipl.-Ing. K. GUNSCHMANN steinsdorfatroe. 10

Dr. rer. not. W. KÖRBER »(οβιΐ) ·» ίό84 Dipl.-lng. J. SCHMIDT-EVERS

PATENT LAWYERS

February 23, 1973 VIGKERS LIMITED

Vickers House 9 ? Π Q 1 D 1

Millbank Tower, Millbank * VV? IU (

London SW1 . England

Patent application

Method and apparatus for marking portions of a flexible flat material web

The invention relates to a method for performing a sequence of labeling operations with the aid of a electrically controlled rotatable marking tool on sections of a flexible sheet-like flat material within a demarcated work zone where each section is removed from the work zone after he has been subjected to such a marking process, during which the section in the work zone has been held firmly in place, whereupon the finished section leaves the work zone to be picked up to clear the next section. The invention also relates to devices that enable such To carry out a sequence of labeling operations, and to which a support demarcating the work zone as well include an electrically controlled, rotatable marking tool, which the latter is mounted so that it is can be brought into effect in the work zone. The invention can be, for. B. apply to duplicating templates or - matrices for marking or flexible lithographic

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Produce printing forms or on direct V / ege reproductions to make from originals.

In a known method for inscribing a duplicating stencil, an initially flat one is Die sheet on the peripheral surface of a rotatable Drum placed so that it forms part of the outer surface of a cylinder, and an electric die cutter moves with respect to the drum in the axial direction in contact with the circular arc-shaped curved outer surface of the stencil sheet, which is rotated together with the drum. The removal of carbon from the stencil sheet With the help of the cutting stylus, an electrical signal is amplified in the required manner which is generated by a photoelectronic device, which is an optical scanning device is assigned, which in turn scans the surface of an original document to be copied. The original document can be wrapped around the rotatable drum near the stencil sheet, and the optical pickup is together arranged with the cutting stylus on a common slide or carriage, so that these parts are common move.

In the "British patent application 51 147/71 is a Described method that makes it possible to use a flexible printing forme or stencil sheet by electrical means to provide a picture; In this process, the sheet is supported so that it is part of the surface area of a cylinder, and an electrical marking stylus is mounted so that it can be rotated about the axis of curvature of the inner surface of the blade and so operated, that the sheet is inscribed on its inwardly directed surface when there is a relative movement along the axis of curvature is brought about between the burin and the sheet. If the sheet is a die sheet,

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and is the graver suitable for cutting through the die sheet, this method can be used to process the sheet into a finished die. This Method of cutting dies, hereinafter referred to as "internal cutting method" "is commonly used executed on a die sheet which is bent so that it is part of the lateral surface of a cylinder forms. The die sheet can e.g. B. through the inner surface a part of a cylinder jacket forming a support made of metal are supported, the is provided with openings so that the die sheet is thereby sucked against the inner surface of the support can that the outside of the support is subjected to a negative pressure. In addition, however use this method for marking a flexible matrix sheet in order to post a flexible lithographic Printing master to produce a flexible lithographic printing form; the sheet to be written on is a so-called facsimile sheet, one of which is electrical If there is a conductive lower layer to which a different colored upper layer is attached, it is with the help of this Method also possible to produce a direct reproduction on the sheet in that locally determined parts the top layer can be removed from the sheet.

In the known methods of labeling or cutting matrices, it is necessary to "start out flat place the lying die sheet around a rotatable marking drum and attach it to the drum. To Upon completion of the stencil, the stencil must be loosened and removed from the drum to be placed in a duplicating machine to be clamped. If a further die is to be labeled, one must first of all have a Mount the new stencil sheet on the drum in the same way as the previously used sheet. Corresponding

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it is required "in the internal cutting process, respectively Repeat the steps for inserting a new die sheet after a finished one Sheet has been removed. It is analogous to this when writing on a sequence of flexible lithographic printing forms or facsimile sheets are required in the manner described above, each after labeling of a sheet to remove the sheet in question from the labeling zone and to carry out further work steps, to the next sheet to be labeled in the work zone to arrange.

The invention is now based on the object of methods and devices of the type mentioned at the beginning that make it possible to carry out a sequence of marking processes within a delimited work zone to be carried out on flexible pieces of flat material without the need to carry out separate work steps, to remove a fully labeled die from the work zone and close it with a new die sheet substitute.

The method according to the invention is characterized in that the labeling process is carried out on individual material sections is carried out, which is withdrawn from a supply roll made of the material and the labeling zone are fed.

A device according to the invention for carrying out this method is characterized in that a device is present, which serves to a roll of a continuous web of flexible flat material support, and that a feed device is present which makes it possible to pull off sections of the material web one after the other from the roll, which are then

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writing zone to be pinned to after labeling to be removed from this zone so that the zone can accommodate the next section of the web of material.

It should be noted that the expression "electrically controlled, rotatable labeling tool "in the following not only denotes a rotatable labeling tool, which actually penetrates the sheet for writing on a die sheet, and its movements relative to the Die sheet can be controlled electrically, but also another tool, e.g. B. an electric die cutting tool or another labeling tool, with which the die sheet is labeled, that it is subjected to the action of an electric current or an electric discharge, but that Tool itself does not penetrate the die sheet at all or only to an insignificant extent. Further the term referred to denotes an electrically controllable shock atichel, which thereby the die sheet with a Image provides that he has a sheet adjacent to the stencil sheet for transferring a pigment to the desired one Points against the die sheet. Admittedly, the successive sections of the flexible material one after the other when carrying out the method according to the invention are held in the inscription zone, but this does not mean that the inscription zone is during of the labeling process is not moved as a whole.

After a certain marking process has been carried out on a die sheet, this die sheet becomes pulled out in the method and the device according to the invention from the inscription zone, so that the next, not yet labeled section of the web of material pulled simultaneously from the supply roll and into the Marking zone is drawn into it. The so-

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just labeled material web section can be separated from the main web if this is necessary. Alternatively can use the consecutive labeled material web sections sequentially wound onto a collection roll to be kept until they are of use are fed.

In a method according to the invention, anyone can of the sections of the flexible flat material, which are drawn off one after the other from a coherent supply roll and fed to the inscription zone, are held in the inscription zone so that it is a part forms the outer surface of a cylinder, so that it is possible to use the curved inner surface of the so held Label the section using an electrically controlled, rotatable lettering tool that reverses the axis of curvature of the die sheet is rotated while at the same time an axial relative movement between the labeling tool and the text held in place Flat material section is brought about. Around each section of the sheet in the marking zone to be held in such a way that it forms part of the lateral surface of a cylinder in the required manner the section in question are bent and brought to bear against a concave cylindrical support surface, which has the desired radius of curvature. To the die sheet To keep it in contact with the support surface, openings opening onto the die sheet above the support surface can be made Apply negative pressure. In a device according to the invention, the support surface can be part of a support device form, which serves to each of the successive sections of the sheet of material in the To keep the marking zone in the correct position, and also is a device for generating a negative pressure available, which in connection with the

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suction openings opening into the surface. In cases where to write on a die or the like a considerable pressure can be exerted on the captured material section by the marking tool must, "and / or in cases in which the material of a sheet over its entire thickness or almost completely must be removed, it is necessary to remove the sheet material section to be arranged so that the suction openings under certain parts of the material section, for. More colorful the edges that are not intended to be subjected to pressure and / or from which no material is removed shall be. The axis of curvature of the consecutive Flat material sections, which have been received by the inscription zone, preferably extends in the at right angles to the direction in which the flat material web is fed to and removed from the inscription zone will.

If it is the electrically controlled, rotatable marking tool that is used in a process and / or a device according to the invention is used to be an electric die cutting stylus, and if the The supply roll contains a flexible die flat material, the method or the device can serve to produce a Sequence of matrixes or templates or printing forms to produce successive sections of the flat material. In the case of the flat material forming the supply roll it is a tissue paper or the like provided with a carbon coating or a carbon coating Flat material made from a plastic. If this is the case, each of the successive sections of the die material, which are withdrawn from the supply roll and fed to the marking or die cutting zone, set in this zone so that it forms part of the lateral surface of a cylinder and is attached to a concave cylindrical

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drical support surface of a support part made of Mötall is present. If an electric burin is used as a burin, it is used to supply a current that enables a die by passing a current through the die material, "a support member is used made of metal that is electrically conductive and provides a return path for the cutting current passing through the die material is directed while the graver rotates about the axis of curvature of the support surface in order to move along a path move in which the stylus is adjacent to the die material lying on the support surface or it is straight just touched. In a method or a device according to the invention, such an electrical current can leading burin serve to conduct an electric current one after the other through sections of material, which are of a The supply roll is withdrawn and fed to the inscription zone, the flat material being a so-called Facsimile material that becomes distorted when an electric current is passed through it; in this case will an electric current is used to mark such a section of the facsimile material with the aid of a stylus to thereby produce an image that causes the material to be discolored by the electric current will. The facsimile material may be a so-called electrolytic material or a so-called electrothermal material Trade material.

Alternatively, that the stencil sheet or the facsimile material section is brought into direct contact with the support part, which in turn serves to the Passing on the current supplied by the burin can be done behind the stencil sheet or the piece of facsimile material Arrange a flexible piece of flat material that serves to receive the electrical current from the stylus. Such a backing material can e.g. B. together with the

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Matrix or Facsimile material to be wound into a roll so that the "two material webs in surface contact stand together. Alternatively, behind the sections of the matrix or facsimile material, which are drawn one after the other into the inscription zone, there themselves corresponding sections made of a flexible one Arrange flat material that are drawn into the labeling zone one after the other from a separate supply roll will.

If only one role is used in an internal cutting process according to the invention, made of the die material there is a risk that a sticky deposit of carbon material on the adjacent surface of the cylindrical metal support member, so that this material is temporarily under the die sheet remains while the sheet is then labeled. To prevent such a build-up of carbon material, not that only leads to clogging of the openings that have been cut into the die sheet by the stylus, see above that only bad copies can be achieved, and in order to avoid an unpredictable influence on the further marking processes, it would therefore be necessary to clean the device at short intervals. To avoid these difficulties, one can use the Sections of the die material that are drawn off one after the other from the supply roll and fed to the cutting zone will, in this cutting zone, arrange matching sections of an endless flexible web of an underlay material, what moves opposite the work zone along an endless path. For example, it is possible to have an endless Loop made of an underlay material in the form of a simple metal foil or a "metal" provided with a support material to let the film run continuously through the cutting zone,

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so that it comes into surface contact with the successive die file sections that are in the work zone should be labeled. Every time a new section of die material is withdrawn from the supply roll and is fed to the cutting zone, a part of the loop having a corresponding length becomes at the same time out of the backing material in contact with the newly supplied section of the die material through the cutting zone. There can be cleaning devices such. B. one or more brushes, the outside of the cutting zone may be present are arranged and serve to form a portion of the endless loop coated with a carbon material to clean the base material that emerges from the cutting zone after a die has been marked, before this section of the endless loop is fed back into the device. The effect of such brushes can be enhanced by providing a facility which is used to clean contaminated with the carbon material Sections of the backing material add a solvent to the sticky deposit from the carbon material to apply.

When in an internal cutting process according to the invention for cutting or writing on a die or a facsimile sheet, the sections to be processed of the relevant Material web at least in the area of the inscription zone with corresponding sections of the base material are stored, the individual sections of the material web in question must each be together with the associated Section of the underlay material together by moving the device through without slipping against each other. For this purpose one can use the neighboring ones Bead sections separately or fasten them to one another in some other way, preferably to one another adjacent to one another longitudinal edge sections that are outside the labeling

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zone. If a section of the stencil or facsimile material, which is fed to the inscription zone, not z. B «by flanging the adjacent part of the Underlay material is attached so that the stencil or facsimile material is supported by the work zone is it is possible to have the section on the M atrizen or facsimile material in firm contact with the adjacent part to keep the base material that it is exposed to the effect of a negative pressure. For example, you can use a Use flat material that is close to its long edges and outside the area to be labeled with rows is provided with perforations. Around the successive sections of the stencils or facsimile material in the inscription zone to be held in contact with a concave support surface which forms part of the lateral surface of a cylinder, wherein the support surface is provided with suction openings in the manner described, the suction openings can be used applying a negative pressure so that the base material is sucked against the cylindrical support surface; the corresponding section of the matrix or facsimile material is thereby pressed against the supporting sheet, that the base material is provided with the aforementioned perforations. The perforations of the backing material must be offset in the axial direction in relation to the suction openings, and they must not be below the to marking surface of the matrix or facsimile material.

If it is the electrically controlled rotatable marking tool that is used in conjunction with a process and / or a device according to the invention is used, is an electric burin, it is possible a sequence of lithographic printing forms from successive sections of a coherent supply roll a corresponding material web in the form of more flexible

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To produce sheets or a sequence of images on individual sheets To create sections of a coherent hulm of facsimile material in flexible form, if to this material includes an electrically conductive lower layer, which is covered with a different colored upper layer wherein the upper and lower layers are e.g. B. as a layer of titanium dioxide or as provided with a carbon coating Layer of tissue paper are formed. In this case, the desired images are generated by the The material of the upper layer is removed with a graver at the desired points.

If the marking tool is an electrically controlled stylus, the various Sections of the facsimile material withdrawn from a supply roll and sequentially the inscription zone be fed; these sections are then in the inscription zone with matching sections of a pigment transfer material, z. B. a carbon material carrying tissue paper, which is flexible and in Surface contact with the facsimile material is brought. Because the burin has an impact on the affected Parts of that located in the labeling zone When pigment transfer material exerts, it is possible to place jewels on the adjacent section of the facsimile material to produce the desired images as the stylus, by its impact action, removes the pigment from the pigment transfer material transferred to the facsimile material. The sections of pigment transfer material can be sequentially from withdrawn from a special supply roll and fed to the labeling zone in such a way that they have the associated there Cover sections of the facsimile material, which in turn peeled off the relevant roll and the labeling zone is fed. Alternatively, the pigment transfer material can be used in advance together with the facsimile

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Wind up the material into a supply roll, so that both webs of material stand in surface contact with each other, themselves but pull them off the supply roll and let them separate from each other. In any case, it is possible to use procedures which are analogous to those used in the labeling of facsimile material which can be colored on electrical V / ege under which a flexible, electrically conductive base material is arranged. Sin prick the mentioned type must be designed so that he z. B. on electromagnetic? / Ege depending on one supplied to him variable electrical control signal can be made to oscillate.

In a method and / or a device according to the invention, it is possible to use the inscription tool Help control input electrical signals passing through the photoelectronic part of an optical scanning device can be generated depending on the intensity of light received by and from the scanning device originates from an original, the image of which is on a certain section of the flexible flat material in the still to be described Inscription zone is to be reproduced, for which purpose the original is scanned by the scanning device.

So that successive sections of a flexible flat material are drawn off from a supply roll and one after the other can be fed to the marking zone, can to the feed device of an inventive Device include at least one wheel, which is provided with teeth on its circumference, rotatably mounted and close to one Track is arranged, along which the sections of the flat material move one after the other out of the inscription zone should, so that when this wheel is rotated, its teeth one after the other in matching openings intervene with which the flat material web is provided.

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The or each wheel can with a drive device for Turning, or the or each wheel can be provided with the Hand rotated.

Alternatively, the feeding device can be one according to the invention Device have two adjacent, parallel Ableitwalzen that so are arranged so that a plane is set along which the web of flat material to be inscribed moves must to leave the marking zone and move through between the rollers. In this case you can the rollers are either rotated by hand or operated by an associated drive device in order to To pass flat material between the rollers, with "at the same time the next section of the material web in the labeling zone is drawn into it.

So that the successive sections of the flat material are introduced in the desired manner into the inscription zone of the device according to the invention, The feed device can include a deflection or feed roller, which is arranged where the material web to enter the inscription zone, so that the material web is under tension over the feed roller runs and is introduced into the labeling zone. Alternatively can be the flat material web of the inscription zone between two adjacent parallel feed rollers or under tension over a stationary guide surface are fed. Another fixed guide surface may also be present to help remove the successive sections of the web of material from the Labeling zone are discharged.

When successive sections of the flexible sheet of sheet material are pulled off a supply roll,

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are fed to the inscription zone of the device and are to be stored there, the device can be provided with a device that enables to store a separate supply roll rotatably, which consists of a flexible base sheet material, so that successive sections of the backing material peeled from this supply roll and the device can be fed through the feed device so that they come into surface contact with the inscription zone run through the associated sections of the flat material web. Alternatively, the device can have an endless Loop made of such a backing material that z. B. is so supported that it is under tension runs over the or each feed roller and / or over each discharge roller.

The invention and advantageous details of the invention are explained in more detail below with reference to schematic drawings of exemplary embodiments. Ss shows:

1 shows a schematic longitudinal section of one part of a stencil or matrix inscription device;

2 to 4 each show a longitudinal section of a further modified embodiment of a device for labeling of matrices or templates; and

5 in a shortened, enlarged cross section part of the preferred embodiments of the device shown in FIGS.

The device shown in FIG. 1 includes two adjacent, parallel feed rollers 1 and 1 'and two adjacent, parallel discharge rollers 2 and 2 ¹ ; these pairs of rollers are close to them

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th, parallel to their axes extending edges of an apertured support 3 which is curved so that it forms part of the dumbbell surface of a cylinder "and that between the" two pairs of rollers there is a gap. A supply roll 4 made of a die material 5, e.g. B. a tissue paper with a carbon pad "is rotatably mounted in a bearing 4 'so that successive sections of the die material can be drawn off the supply roll 4, passed between the rollers 1 and I ¹ and fed to the interior of the cylindrical support 3. The die material withdrawn from the supply roll extends over the inner surface of the cylindrical support 3 and exits it again to pass between the discharge rollers 2 and 2 '. The axis of the roller 1' is opposite the axis of the roller in the direction of the median plane of the the gap of the support 3 so displaced that the pair of rollers 1, 1 'has an inclination automatically durhzuführen to the matrix material 5 of the support 3 at the correct angle of inclination. Accordingly, the axis of the roller 2 ¹ with respect to the axis of the roller 2 in the direction of the Central plane of the gap of the support offset so that each pair of rollers is inclined t, in such a way that it automatically removes the die material 5 from the support 3 at the correct angle. In the middle of the cylindrical support 2 extends parallel to the roller pairs 1, 1 'and 2, 2 ^1, a rotatable shaft 6, which carries a graver support arm 7, which protrudes radially outward in relation to the shaft and forms a support for an electric die cutting stylus 8 which is adjacent to the cylindrical surface which is formed by the portion of the die material web 5 which has been received by the cylindrical support. So that the section of the die material in the cylindrical un-

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Support 3 can be held in contact with its cylindrical inner surface, a suction fan 9 is present, which serves to apply a negative pressure to the outside of the cylindrical support 3, which is provided with suction openings 10 to apply. Since the openings 10 are present, there is a pressure difference between them facing away sides of the material section in the cylindrical support 3, so that the material section is forced to adapt to the cylindrical inner shape of the support, since it is sucked against this surface will. The axis of curvature of the portion of the web of material 5 in the support 3 extends at right angles to the path along which the material extends through the Support moves.

An original document 11 to be copied is shown in Fig. 1 by an optical scanning device

12 scanned to which a photoelectronic device

13 belongs, which generates electrical output signals which regulate the cutting action of the graver 8, during the The graver is rotated and the shaft 6 is moved in the direction of its axis. The burin 8 is mounted so that it then when it is rotated, describes a path in the vicinity of the cylindrical inner surface of the portion of material which is held in the cylindrical support. This support is made of metal and acts as a ladder for the conductive current, which with the aid of the stylus 8 through the die material to cut the die.

After a die is completed, a drive device 14 is operated to drive the discharge rollers 2 and 2 ¹ so that they rotate clockwise and counterclockwise as shown in FIG cylindrical support is pulled out · »·. At the same time, an as yet unprocessed

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teter section of the die material 5 into the cylindrical Support 3 is drawn in and to make this possible a part of the correct length is drawn in of the material is withdrawn from the supply roll 4. The suction fan 9 remains during the pulling out of the finished Die and the feeding of the next section of die material in operation to between the inner surface of the support 3 and the ffiatrizen material 5 to constantly maintain a negative pressure, which ensures that the running die material is held in contact with the cylindrical inner wall of the support 3.

As soon as a section of the die material has left the support 3 and is removed from the rollers 2 and 2 ' has been delivered, the drive device 14 is put out of operation. Now you can cut the The next die must be started, which is made from the new section of material that is now in the support 3 is located. The finished die can be separated from the material web 5 and then fed to a duplicating machine. It is possible to have a perforated Attaching a head piece made of a relatively stiff sheet material to the front end of the severed section; this preferably takes place before separating the finished die from the material web 5, so that the die is on known way can be stretched on a duplicating machine of a known type.

The supply roll 4 made of the die material 5 could of course also be replaced by a supply roll which consists of a material which is composed of two layers, namely an upper layer of a matrix material and a lower layer of a backing material. In this case, instead of the support 3 the backing material used as an electrical conductor to

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forward the electrical current supplied via the cutting stylus 8.

The "device shown in Pig. 2 can" used when the die material and the backing material are withdrawn from separate supply rolls at the same time should. In the Pig. 2 are components that correspond to the components of the device according to Pig. I resemble each denoted by the same reference numerals. A supply roll 15 made of a die material 16 in the form of a with a carbon layer provided tissue paper, a fabric or the like and a supply roll 17 of the base material l8 are rotatably mounted in bearings 15 'and 17'. The supply rolls 15 and 17 are of the same length Sections of the die material 16 and the base material l8 are pulled off simultaneously over the roller 1, where the two webs of material meet. The combined sections then run under tension over the feed roller 1 into the interior of the cylindrical support 3, they move across the inner surface of the support, and eventually they leave the support to move between to pass through the parallel, adjacent discharge rollers 2 and 2 '. The roller 1 should be freely rotatable while the rollers 2 and 2 'can be driven by a drive device 14 to a Apply sufficient tension so that each new sections of the die material 16 and the backing material 18 can be withdrawn from the supply rolls 15 and 17.

The backing material 18 is according to Pig. 5 provided with perforations 18 »so that it can be opened with the aid of the suction openings 10 of the cylindrical support 3 is possible, the united material web sections, which in the cylindrical support form a die blank to suck against the inner surface of the support when the

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Suction fan 9 is put into operation in order to apply a negative pressure to the outer surface of the cylindrical support. So that there is sufficient friction between the combined material sections inside the cylindrical Support 3 occurs, according to FIG. 5, the perforations 18 'of the base material 18 opposite the suction openings 10 of the cylindrical support 3 offset in the direction of the axis of the support.

The edges of the Support 3 are preferably shown in FIG. 5 with frontal, -sided Edge guides 26 and 27 each having a lip 28 and 29, respectively; these. Overlap lips the longitudinal edges of the material webs within the support. In this way the IU male blank becomes longitudinal the inner surface of the support 3 guided as soon as the rollers 2 and 2 'are driven, and this prevented the presence of the edge guides a possible pulling of the die blank from the inner surface of the support 3, while the rollers 2 and 2 "are rotated by the drive device 14. The lips 28, 29 and the edge guides 26, 27 are each separated from the inner surface of the support 3 by such a distance that air between each of the lips 28 and 29 and the matrix material 16 can be sucked through by the suction fan 9, and that the required suction is not impaired.

In Pig. 5, the arrows indicate the direction of flow of the air sucked in by the suction fan 9.

If a section of the processed die material 16 is to be removed from the cylindrical support 3, the drive device 14 for rotating the rollers 2 and 2 ^{1 is} switched on and the suction fan 9 remains in operation. The suction fan should be sufficient to move in

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Connection with the possibly existing edge guides 26 and 27 to maintain sufficient tension in the adjacent sections of the die material and the backing material in the cylindrical support 3 so that the sections are pressed tightly next to each other and against the cylindrical inner surface, while the adjacent sections are pressed by means of the rollers 2 and 2 ¹ can be pulled out of the support. If necessary, the die material 16 can be separated again from the base material 18 after the material webs have emerged from the support 3.

Fig. 3 shows a device which is similar to that of Fig. 2, except that an endless loop is present from a base material 18, which the interior of the cylindrical support 3 continuously passes through and is guided for this purpose by parallel transport rollers 19, 20, 21 and 22. The required friction between the portion of the die material 16 which is in each case in the cylindrical support 3, and that of it in each case temporarily adjacent part of the endless loop of the base material 18 is just as in the case of the device caused according to Fig. 2 by the application of a negative pressure. In both cases the suction openings should 10 of the cylindrical support 3 preferably only at the ends of the support and in the vicinity of its edges be formed and distributed in the circumferential direction. The perforations of the underlay material must accordingly l8 be adjacent to the longitudinal edges of the endless loop. According to Fig..3 is one for cleaning the endless loop serving brush 23 arranged outside the cylindrical support 3 near the endless loop of the base material, so that all unwanted carbon deposits are removed during the endless loop through the device is directed. EtLe cleaning effect of the brush 23 can be

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optionally be promoted by the fact that a solvent is applied to the base material 18 while it goes through the cleaning station. Moving the brush can also help reduce the buildup of carbon to eliminate. As is the case with the Pig device. 2, the shaft 6 can be arranged in the cylindrical support 3 because a sufficient negative pressure is generated to relieve the tension in the adjacent sections of the To keep the matrix material web and the backing material in the support 3 so low that the two materials pressed firmly against each other and against the inner surface of the support, although rollers 2 and 2 ' are driven; the negative pressure is also maintained when a new section of the die material is drawn into the cylindrical support while a previously labeled section of the die material is discharged from the support. Preferably, however, the stylus 8 of the die material in the Support 3 is lifted while the material webs are pulled away further through the support. As before Edge guides are preferably present which contribute to the adjacent flat material sections to hold in contact with the inner surface of the support 3.

Fig. 4 shows a further embodiment of the invention, in which parts that are similar to parts of previously described embodiments are each denoted by the same reference numerals are. In the present case, there are two coupled, toothed wheels 24 and 25 which the rolls 1 and 2 are adjacent on their sides facing away from the gap between them. The teeth of the wheels 24 and 25 engage in perforations that run along an edge of the die material 5 are formed similarly to a movie. Toothed wheels 24 and 25 can be rotated by a drive device 14 to

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to control the supply of the die material to the support 3 and the discharge of the material; simultaneously can serve to stabilize the section of the die material that is located in the cylindrical Support 3 is located. Instead of the die sheet 5 a two-layer material can be used, then it is possible to use one of those described above Method to apply to a relative slipping of adjacent material sections in the support 3 to prevent. On the opposite side of the die material or on adjacent sections of the die material and any backing material present may have a similar row or rows of perforations be present, in the teeth of two further, mutually tilted wheels, not shown in Fig. 4 engage, which are arranged coaxially with the wheels 24 and 25 are. In a modification of the device according to FIG. 4, the toothed wheel 24 and one could be roughly coaxial omit the second wheel arranged with it or replace it with a pulley that cannot be driven.

Devices of the type described with reference to the drawings could also serve to successive sections a flexible sheet for making lithographic To label printing forms. Furthermore, these devices can be used to sequential Sections of an electrolytic or electrothermal Facsimile material in the manner described above to "label or to provide with pictures; if the stylus 8 is replaced by an electric push stylus, can successive sections of facsimile material are labeled.

Patent claims:

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Claims (1)

PAT ΊΡ, NTANSP Ii Ü CKE uJ Method for carrying out a sequence of labeling operations by means of an electrically controlled rotatable marking tool on successive sections of a flexible flat material in a predetermined marking zone, in which each section consists of the labeling zone is removed after it has placed a Lettering ^ process while he was in the inscription zone was held, whereupon the section in question leaves the inscription zone; iim them to free up for taking up the next section, characterized in that the Besehriftungsvorgänge performed on material sections v / ground from a supply roll consisting of the relevant material (5; 16) (4; 15) peeled off and fed to the inscription zone (3). 2. The method according to claim 1, characterized in that each of the I.Taterialabschnitte that are drawn successively into the inscription zone, is held therein so that it is part of the surface area of a cylinder, and that the electrically controlled rotatable labeling machine is used to the captured section of material on its one part to label the outer surface of a cylinder forming inner surface, while a! relative movement between the Labeling tool and the recorded section of material brought about along the axis of curvature of the inner surface and the marking tool is rotated around this axis of curvature. 3. The method according to claim 2, characterized in that g e k e η η that each of the 309836/0926 sections of material drawn into it in the writing zone is held so that it forms part of the lateral surface of a cylinder such that the axis of curvature of the Inner surface of the captured portion of material is perpendicular to the direction in which. the flat material is introduced into the inscription zone, it passes through and is removed from it. 4. The method according to claim 2 or 3, characterized in that each of the material sections, then when it is in the inscription zone, thereby being held in a position in which it is a part the outer surface of a cylinder forms that it is bent and to rest "on a concave cylindrical support surface is brought. 5. The method according to claim 4, characterized in that each of the flat material sections is held in contact with the central cylindrical support surface while it is in the marking zone, and that for this purpose a negative pressure is applied to the relevant section via suction openings with which the support is provided and which open onto the central cylindrical support surface. 6. The method according to any one of claims 1 to 5, characterized in that each of the flat material sections is introduced into the marking zone under tension by a feed roller. 7. The method according to any one of claims 1 to 6, characterized in that each of the flat material sections is removed from the marking zone after it has been subjected to a marking process therein,. that for this purpose at least one rotatably mounted drive wheel cooperates with the material web, the teeth on 309836/0926 has which one after the other when turning the drive wheel in them assigned movement control openings of the flat material web intervene to pull the captured section out of the labeling zone and the next Pulling section into it. 8. The method according to any one of claims 1 to 6, characterized in that each of the flat material sections is removed from the writing zone after he will be subjected to a labeling process is, and that for this purpose the flat material web is grasped by two mutually adjacent parallel discharge rollers is to move the next material section into the labeling zone to pull in. 9. The method according to any one of claims 1 to Ö, characterized characterized in that an electric die cutting stylus is used as an electrically controlled, rotatable marking tool is used, and that the flexible sheet material includes a die material, and that the labeling operations performed as die cutting operations on successive sections of the die material will. 10. The method according to claim 9, characterized in that g e k e η η - ζ ei c h η e ΐ that the die material with a flexible Flat material is deposited, which has previously been wound up together with the Mairizen material to form a supply roll is so that the backing material is in surface contact with the die material. 11. The method according to claim 9 »characterized in that the successively in the inscription zone drawn-in sections of the die material in the inscription zone with corresponding sections of the flexible underlay material can be stored, which 309836/0926 on the other hand drawn from a separate supply roll and fed to the labeling zone. 12. The method according to claim 9, characterized in that the successively in the inscription zone drawn-in sections of die material in the inscription zone with corresponding sections an endless flexible web of an underlay material are placed under it, which along an endless path through the inscription so ne is passed through. 13. The method according to claim 10, characterized in that adjacent Abseimitte the Die material and the base material are flanged so that they are releasably connected to one another. 14. The method according to any one of claims 10 to 12, characterized gekennzei c h net that each of the sections of the die material successively in the marking zone are drawn into it by applying a negative pressure in abutment with an adjacent section of a backing material is being held. 15. The method according to any one of claims 1 to 8, characterized in that an electrical marking stylus is used as an electrically controlled, rotatable marking tool, that the flexible die flat material has a material for lithographic printing plates, and that the marking process results in the sections concerned successive lithographic printing plates are produced of the lithographic printing form material. 16. The method according to any one of claims 1 to 8, characterized in that the electrically controlled, rotatable marking tool an electrical 309836/0926 Trizenbeschriitungsstigel is used that to the flexible The stencil material includes a facsimile material having a lower layer coated with a different color Upper layer is provided, and that the inscription process leads to the fact that locally material from the relevant Sections of the top layer are removed to provide the relevant sections of facsimile material with the desired To provide images. 17. The method according to claim 15, characterized in that a layer is added to the upper layer made of titanium dioxide and, for the lower layer, a tissue paper provided with a carbon layer, a woven fabric or the like heard. 18. The method according to any one of claims 1 to Ii, characterized in that an electric stylus is used as an electrically controlled, rotatable marking tool for passing a current, that the flexible matrix material includes a facsimile material which can be colored _{by passing an electric S + rom} and that each marking operation includes measures to conduct an electric current through the relevant sections of the facsimile material with the aid of the stylus, and thus to produce images on the various sections by means of the discoloration of the material caused by the current. 19. The method according to any one of claims 1 to c, characterized characterized in that the electrically controlled, rotatable marking tool is an electrically controlled one Push stylus is used that the flexible sheet material includes a facsimile material that consecutive Sections of the facsimile material drawn one after the other into the inscription zone and there with the corresponding 309836/0926 corresponding portions of a pigment transfer material in flexible sheet form are deposited, which are brought into contact with the facsimile material in the inscription zone be, and that this inscription process includes measures to cause the stylus to have a pressure effect on the relevant portions of the pigment transfer material in the inscription zone to to provide the relevant, adjacent sections of the facsimile material with the desired images, the impacts applied cause pigment from the pigment transfer material to the facsimile material is convicted. 20. The method according to claim 19, characterized in that successive sections of the Pigment transfer material is withdrawn from a separate supply roll and fed to the marking zone, so that they have the relevant sections in the inscription zone of the facsimile material, which are fed to the inscription zone from a supply roll one after the other will. 21. The method according to claim 19, characterized in that the pigment transfer material before use with the facsimile material is combined into a supply roll in which the two webs of material are in contact with one another. 22. The method according to one of claims 1 to 21, characterized in that the labeling tool is controlled during each inscription process with the aid of electrical input signals, which are generated by a photoelectronic Setting up an optical scanning device as a function of the intensity of the at each moment. received light are generated by an original, with the image of which a section of the flexible matrix 309836/0926 materials want to be provided in the labeling zone,
while the original is scanned by the optical scanner. 23. Apparatus for performing a sequence of inscription operations with a support delimiting a labeling zone and an electrically controlled, rotatable, labeling tool that can be operated in the labeling zone, characterized in that the device includes a device (4 ¹ ; 15 ') which
it enables a supply roll (4; 15 ) made of a flexible flat material (5; 16) to be rotatably mounted, and that one
Feed device (1,1 ', 2, 2 ·; 14; 1, 2, 14; 21, 22;
is present, which is used to pull successive sections of the flat material from the supply roll, the
then successively held in a lettering zone (3), and which are removed from the treatment zone after the lettering in order to free the treatment zone for receiving the next flat material section. 24. The device according to claims 19, characterized in that the support device (3,
9, 10) is suitable for holding each of the successive flat material sections when it is located in the inscription zone (3) so that it essentially forms part of the outer surface of a cylinder, and that the inscription tool (8) is mounted in such a way that it that the cylindrical inner surface of each flat material section, which is retained in the above-mentioned manner, can be labeled while a relative movement between the labeling tool and the retained flat material section is guided along the axis of curvature of the cylindrical inner surface of the section and the labeling tool is rotated about the axis of curvature. 309836/0926 25. Vorricntung according to claim 24, characterized in that the support device (3, 9, 10) is suitable to hold each of the material web sections when it is in the inscription zone (3), that it forms part of the lateral surface of a cylinder "whose axis of curvature is at the right angle to the direction runs, in which the feed device (l, 1 ', 2, 2 x, 14; 1, 2, 14, 21, 22) the flexible flat material (5; Ib) into the inscription zone, through it and pulls out of here. 26. The device according to claims 24 or 25, characterized in that the support device (3, y, 10) forms a concave cylindrical support surface, to which each of the material web sections can be placed under bending in order to assume a position in which it forms part of the lateral surface of a cylinder, and that the axis of curvature of the cylindrical support surface with the The axis of rotation of the marking tool (δ) coincides. 27. The device according to claim 26, characterized in that a device (9) for generating a negative pressure is present, which is in connection with suction openings (10) welcne on the cylindrical support surface open into the labeling zone, so that it is possible each of the sections of the sheet of sheet material with the aid of a To keep the negative pressure in contact with the support surface when it is in the marking zone, around a cylindrical assume a curved shape. 28. Device according to one of claims 23 to 27, characterized in that the feed device at least one wheel (24, 25) which has teeth on its circumference, that the or each wheel is rotatably mounted near a path along which the 309836/0926 Sections of the flat material web (16) move one after the other to enter or to enter the labeling scene (3) leave, and that when turning the or each Hades the teeth engage successively in associated movement control openings of the flat material web to successive sections pull the web through the inscription zone. 2y. Device according to claims 28, characterized in that a drive device (14) for Rotation of the or each wheel (24, 25) is present. 30. Device according to one of claims 23 to 27, characterized in that two adjacent, parallel Abfünrungswalzen (2, 2 ¹ ) belong to the feed device, which is arranged so that a spell runs between them, along which the sections of the Die material (5; 16) are moved one after the other in order to leave the limitation zone (3), and that the discharge rollers are drivable in order to pull the sheet material between them, so that successive sections of the sheet material are drawn through the inscription zone. 31. The device according to claim 30, characterized in that a device (14) for rotating the Abfuhz-ungswalze (2, 2 ') is in front. 32. Device according to one of claims 23 to 31, characterized in that the feed device a non-drivable feed roller (1), which is arranged at an input part, belongs to which the successive sections of the flat material web are to enter the inscription zone (3), so that each of the material web sections opposite the drive 309836/0926 place is pulled over the feed roller under tension and drawn into the marking zone. 33 · Device according to one of claims 23 "to 32, characterized characterized in that a device (17 ") is present which enables a supply roll (17) to store rotatably, which consists of a flexible Kilfsflachmaterialbahn (IS), so that it is the feeding device it is possible to pull successive sections of this material web through the inscription zone (3), that they come into surface contact with associated portions of the Piacnmaterialbahn (16) that of the first supply roll (15) is withdrawn. 34. Device according to one of claims 23 to 32, characterized characterized in that there is an endless, flexible web of material (18) which is mounted in this way is that it runs through the labeling zone (3) can lead to the fact that the sections of the flat material (16) are pulled off one after the other from the supply roll (15) and are fed to the labeling zone, in the labeling zone are stored with their assigned sections of the material web. Apparatus according to claim 34, depending on claim 30 or 31, characterized in that the material web (18) is mounted so that it can be moved along an endless path which extends between the discharge rollers (2, 2, ¹ ) extends. 36. Apparatus according to claim 34 or 35 as a function of spoke 32, characterized in that the material web (18) is mounted so that it enters the inscription zone (3) under tension at the entry point and runs over the feed roller (l). 309836/0926 37. Device according to one of claims 34 to 36, characterized characterized in that a cleaning device (23) is present, which serves to clean successive sections of the material web (l8) after these have run through the inscription zone (3). 38. Device according to one of claims 23 to 37, characterized characterized in that the inscription tool (8) is an electric die cutting stylus and the inscription zone (3) is a die cutting zone. 3y. Device according to one of Claims 23 to 37, characterized characterized in that the inscription tool (8) is an electric stylus for writing on. a document is. 40. Apparatus according to claim 3y, characterized in that ge k e η η that the marking tool is a stylus through which an electric current can be passed is. 41 · Device according to one of claims "23 to 37, characterized in characterized in that the marking tool is an electric stylus for generating Bumping is. The patent attorney: 309836/0928 SS Blank page