DE102011009523A1 - Tool carrier arrangement on a magnetic cylinder of a rotary punching device and tool carrier - Google Patents

Abstract

The invention relates to a tool carrier arrangement on a magnetic cylinder of a rotary punching device, with a tool carrier on which at least one tool with a predetermined pattern is arranged, the tool carrier being held in a system connection on the magnetic cylinder by means of a magnetic force emanating from the magnetic cylinder. According to the invention, the tool carrier is formed by a stand foil (1) made of a plastic material, which, when clamped on the magnetic cylinder (9), has a defined positioning pattern for tools, in particular a grid line structure, on the visible side, by means of which the at least one tool (8) is positioned exactly can be arranged and detachably fastened on the stand film (1), the stand film (1) being provided in at least one defined stand film region with a material which can be magnetically attracted by the magnet cylinder (9), in particular with a ferromagnetic material, which the stand film (1) in a system connection on the magnetic cylinder (9) holds.

Description

The invention relates to a tool carrier arrangement on a magnetic cylinder of a rotary punching device according to the preamble of claim 1. Furthermore, the invention relates to a tool carrier according to the preamble of claim 10.

In connection with rotary punching machines or rotary punching machines, it is generally known to use on the local magnetic cylinders "magnetic" stamping plates, which are made of a ferromagnetic material, so that these magnetic stamping plates are held on the magnetic cylinder by the magnetic cylinder emanating from the magnetic force. In these magnetic stamping plates, the carrier material is integrally and materially connected to the tool. Individual tools can therefore no longer be added after the production of the magnetic stamping sheet. Such magnetic stamping sheets have at a peripheral edge seen in the cylinder circumferential direction over hole recesses, by means of which the magnetic stamping plates are mounted in accordance with associated positioning or dowel pins of the magnetic cylinder. As a result, a positionally accurate alignment of the magnetic stamping plates is achieved on the magnetic cylinder. By contrast, the peripheral edge of the magnetic stamping plate lying opposite in the cylinder circumferential direction rests on the magnetic cylinder without such a positioning pin or alignment pin arrangement.

An example of such a tool carrier arrangement is known from DE 298 05 004 U1 known, in which the magnetic cylinder also has a plurality of grooves are inserted or glued into the magnets in such a way that they are flush with the cylinder jacket surface.

Such a tool carrier assembly or such a system is relatively inflexible and expensive in connection with the prefabricated magnetic stamping plates, since for each application always a separate magnetic stamping sheet has to be made, which is obviously expensive and expensive.

In addition, from the WO 99/51440 A1 a device for perforating, grooving or punching for multicolour sheet-fed rotary printing presses is known, in which a rectangular base plate made of a flexible material instead of a blanket is clamped on a blanket cylinder of the sheet-fed rotary printing machine by means of the cloth holding device there. At this base plate two spaced in the circumferential direction of the blanket cylinder attached mounting strips are arranged, by means of which a rectangular base sheet of a thin plastic material with opposite edge regions can be releasably attached. This fixing strips are relative to the base plate within adjustment in the direction of the associated blanket cylinder slidably mounted and fixed, the stand-up film is detachably and fixedly connected to the mounting strip. For further adjustability is further provided to attach to the edge regions of the support film retaining strips with which the film is fixed with the assignable fastening strips within adjustment slidably and fixable. With such a releasably mounted on a base plate still sheet particular positional corrections between the base plate and the film and thus also position corrections to a sheet to be processed in the press can be easily and quickly performed without the tools applied to the film stand tools are changed or implemented have to. Due to the releasable attachment of the still film, it is also possible to archive the applied molds for later print jobs.

However, such a stand-up system for rotary printing presses is not suitable for use in rotary punching machines or rotary punching machines with a magnetic cylinder, since this can not be held and arranged reliably on the magnetic cylinder by means of the magnetic force emanating from the magnetic cylinder.

It is therefore an object of the present invention to provide a tool carrier arrangement on a magnetic cylinder of a rotary punching device, by means of which a multiplicity of different work orders can be carried out in a simple, inexpensive and functionally reliable manner with short set-up times. Another object of the present invention is seen in providing a suitable tool carrier.

This object is achieved with the features of the independent claims. Advantageous developments are the subject of the dependent claims.

According to claim 1, a tool carrier assembly is provided on a magnetic cylinder of a rotary punching device having a tool carrier on which at least one tool is arranged with a predetermined pattern, wherein the tool carrier is held by means of a magnetic cylinder emanating from the magnetic force in an abutment connection on the magnetic cylinder. According to the invention, the tool carrier is formed by a stationary film made of a plastic material which, in the state clamped on the magnetic cylinder, has on its visible side a defined positioning pattern for tools, in particular a Grid line structure, comprising, by means of which the at least one tool positionally accurate on the stationary film can be arranged and there preferably releasably fastened. It is further provided according to the invention that the still film is provided in at least one defined film area with a magnetically attractable magnetic material from the magnetic cylinder, in particular with a ferromagnetic material, which holds the still film in an abutment connection on the magnetic cylinder.

With such a film according to the invention of a plastic material that can be reliably and reliably held by magnetic force on a magnetic cylinder, there are a number of advantages: So can on such a film in addition to stamping profiles or punching tools alternatively or additionally also punching, perforating and / or scoring tools or the like lines are applied positional and accurate position. In contrast to the conventional magnetic stamping plates, it is thus possible here to use selection or alternate perforation, cutting and scoring tools or lines, which allows a more flexible use of the system. The tool shapes or tool patterns required for the particular application for perforating, punching, punching and / or grooving can thus be quickly and inexpensively constructed by the user himself on the still film. Long delivery times for magnetic stampings can therefore be omitted, as well as the creation of a required for the production of the magnetic stamping sheet template file is eliminated. As a result, the production costs can be reduced enormously. Furthermore, the film can be made of a plastic material simple and inexpensive, so that there are significant cost advantages over the conventional magnetic stampings from a solid sheet metal. Another important advantage is that the film can be archived simply by means of a so-called hanging file.

In principle, there are various possibilities for providing the still film with at least one region which is provided with a magnetically attractable material, in particular with a ferromagnetic material. For example, it would be possible in principle to provide the stationary foil on the outer peripheral side, at least in some areas, with a corresponding magnetically attractable material, in particular with a ferromagnetic material. However, an embodiment is particularly preferred in which the still film is provided with at least one band of a magnetically attractable, in particular ferromagnetic material, at least at its peripheral edge regions which are opposite in the cylinder circumferential direction. The strip is preferably a strip-like steel strip, which can be connected in a simple manner to the still film, for example, by an adhesive bond can be materially connected. The adhesive bond can be produced for example by an adhesive film, an adhesive tape and / or a liquid adhesive. As a material for such a steel strip is particularly suitable spring steel, which has a higher strength compared to many other steels. In addition, such a spring steel has an increased elasticity, which is particularly advantageous in connection with the clamping of the still film on the cylindrical outer circumference of the magnetic cylinder, as this in a simple way a functionally reliable and reliable system connection to the jacket of the magnetic cylinder is possible.

It should be expressly mentioned at this point that the term "band" is to be understood here expressly in a broad sense, and is intended to include any suitable for forming the stationary film on the magnetic cylinder surface shape or design.

The term "film" is also to be understood in a broader sense and is intended to include any suitable for mounting on a magnetic cylinder Standfolienausgestaltung, so expressly more plate-like film configurations with greater wall thickness, if they are sufficiently flexible to clamped on a magnetic cylinder in an investment connection to become. This depends essentially on the outer diameter of the magnetic cylinder.

According to a further particularly preferred specific embodiment, the invention proposes that the arranged in the circumferential direction of the peripheral edge regions bands, in particular steel bands each have at least one hole-like recess, by means of which the still film are mounted on the cylinder-side positioning and / or dowel pins each position or position exactly can. With such a preferred embodiment of the invention is thus ensured in a simple manner that the film according to the invention at the two opposite in the cylinder circumferential edge edges (front and rear edge) can be hung on the cylinder, whereby a particularly advantageous register accurate mounting of the still film is made possible on the magnetic cylinder. In addition, this ensures that the film is held sufficiently reliable in a system connection on the magnetic cylinder.

Particularly preferred in this context is an embodiment in which the positioning and / or dowel pins are arranged with respect to the cylinder circumferential direction approximately at the same height on the magnetic cylinder and spaced therefrom in Zylinderachsrichtung from each other, so that at the in Cylinder circumferential direction opposing marginal edge regions arranged and there are each mounted only over a portion of the film stationary bands or steel bands are mounted on different positioning and / or dowel pins and interlock positively to form a substantially continuous cylinder axis direction strip-like band area. With such a magnetic tape configuration or magnetic tape configuration, which is essentially continuous in the cylinder axis direction, it is ensured that the still film is held taut over the entire circumference of the cylinder and in a desired abutment connection on the magnetic cylinder.

According to a specific embodiment for this purpose, it is proposed to arrange at a first marginal edge of the still film two spaced apart in Zylinderachsrichtung bands, in particular to arrange the Zylinderachsrichtung opposite Randkantenendbereichen while at one of the first edge of the Standfolienzylinderumfangsrichtung opposite second edge of the still film (there in a central region ) A band is arranged, which engages positively in the clamped state on the magnetic cylinder between the two arranged on the first peripheral edge of the still film tapes and is arranged there. Such a structure can be produced in a simple and inexpensive manner and meets the requirements described above for the position and positionally accurate arrangement of the still film on the magnetic cylinder.

According to a further particularly preferred embodiment, the still film itself is formed by a plastic film which is flexible at least in the circumferential direction of the cylinder and which, for example, has a material thickness of between 0.1 and 2.0 mm. Such a film is simple and inexpensive to manufacture.

The grid line structure itself is preferably formed by a rectangular grid line arrangement, in particular by a right-angled grid line arrangement in millimeter division, which allows a particularly position and positional arrangement and alignment of the respective tools. The rectangular grid line arrangement preferably has a reduced graduation in the cylinder circumferential direction, in which the grid lines spaced in the cylinder circumferential direction each have an equal distance from one another, but which distance is less than the always equal spacing of the grid lines lying next to one another in the cylinder axis direction, around the larger outside diameter of the raised tools to be taken into account with respect to the smaller outer diameter of the cylindrically mounted stand-foil surface when attaching the tools when the still foil is flat.

In principle, the grid line structure can be applied in a simple manner to a still film formed by a plastic film, for example by being printed.

As already explained in detail above, the tool can be a punching and / or stamping and / or perforating and / or scoring tool that is detachably fastened, for example glued, to the still film.

Furthermore, according to a preferred embodiment of the rotary punching device, the magnetic cylinder can be assigned an impression cylinder on which a counter-pressure protection plate is arranged.

The invention is achieved with respect to the tool carrier with the features of claim 10. According to claim 10, a still film is proposed as a tool carrier made of a plastic material with a defined positioning pattern for tools, in particular a grid line structure, which in at least one defined film area with a magnetically attractable material, in particular a ferromagnetic material is provided. The advantages resulting from such a still film as a tool carrier have already been explained in detail in connection with the tool carrier arrangement. In this respect, reference is made to the statements made above.

The invention will be explained in more detail with reference to a drawing.

Show it:

1 1 is a schematic view of a development of a still film according to the invention with spring steel strips arranged on the peripheral edges opposite the cylinder circumferential direction for fastening the still film to a magnetic cylinder of a rotary punching device equipped with magnets;

2 schematically a magnetic cylinder of a rotary punching device with clamped upright film and associated impression cylinder, and

3 schematically an enlarged detail section along the line AA of 2 ,

In the 1 is a schematic and exemplary of an inventive film 1 of a plastic material (for example, 0.2 mm thick) shown on their in the image plane of the 1 shown side view a rectangular grid line structure 2 , preferably a millimeter division shows. In connection with the right-angled millimeter scale grid line arrangement shown here, the in Cylindrical circumferential direction y spaced grid lines arranged so that they each have an equal distance from each other, but this distance is less than the always the same 1-mm distance of lying in Zylinderachsrichtung x grid lines.

The film is in the 1 shown in their developed state, at the opposite in the circumferential direction of the cylinder y edges 3 . 4 Spring steel strips 5 . 6 and 7 are arranged from a ferromagnetic spring steel material.

On such a film 1 , in particular on the grid line structure 2 the film stand 1 can position and exact position stamping and / or stamping and / or perforating and / or scoring tools or the like lines 8th be arranged according to a predetermined tool pattern. For this purpose, the punching and / or stamping and / or perforating and / or scoring tools are applied to the still film according to the given tool pattern 1 glued, which is exemplary in connection with the 2 shown is a tool 8th only extremely schematic and exemplary on the film 1 is positioned.

The 2 shows very schematically and exemplarily one with magnets 15 provided magnetic cylinder 9 as a form cylinder on which the in the 1 in the development shown film 1 clamped and held in the manner described in more detail below by means of magnetic force.

For positioning and positionally accurate fixing and alignment of the film 1 on the magnetic cylinder 9 points the magnetic cylinder 9 , as this particular from the 3 can be seen, which shows an enlarged detail of the section along the line AA, here four by way of example in the cylinder axis direction x spaced from each other positioning or dowel pins 10 on, with respect to the cylinder circumferential direction y at approximately the same height on the magnetic cylinder 9 are arranged.

At this positioning or dowel pins are previously in connection with the 1 described spring steel strips 5 . 6 and 7 with their in spring steel bands 5 . 6 and 7 trained hole-like recesses suspended, for example, substantially or at least partially positive fit hooked.

Specifically, here are at the first edge 3 the two spring steel bands 5 . 6 arranged, which are seen in Zylinderachsrichtung x are spaced apart from each other so that they are arranged on the opposite in Zylinderachsrichtung x Randkanteneck- or -endbereichen. Like this from the 1 it can be seen, the two spring steel bands 5 . 6 essentially the same and define a free space between them 12 ,

On the opposite in the circumferential direction of the cylinder y second edge 4 is in the area of open space 12 the first edge 3 and thus in a central region of the second peripheral edge 4 the spring steel band 7 arranged, as this particular from the 2 it can be seen on the magnetic cylinder 9 clamped state substantially form-fitting between the two at the first peripheral edge 3 the film stand 1 arranged spring steel strips 5 . 6 engages and is arranged there in the assembled state.

This will, as this particular from the 2 can be seen, at the level of positioning or dowel pins 10 a stripe-like spring steel strip, essentially continuous in the cylinder axis direction, made from the spring steel strips 5 . 6 and 7 trained, the functionally reliable and stable clamping of the film 1 in a desired investment connection of the film 1 on the magnetic cylinder 9 ensures.

It is understood that instead of only four exemplary positioning or dowel pins 10 also a different number of positioning or dowel pins 10 may be provided, where the spring steel strips 5 . 6 and 7 with their hole-like recesses 11 can be mounted.

The 3 shows schematically and exemplarily an enlarged detail view of a cross section along the line AA 2 , from which sectional view it can be seen that the still film 1 by means of an adhesive layer exaggerated here for reasons of clarity 13 and thus by means of an adhesive connection with the spring steel strip 5 connected is. The same adhesive bond can be used in conjunction with the spring steel bands 6 and 7 be provided.

From the 3 is also merely exemplary and schematically the releasable fixing of the tool 8th on the film 1 shown by means of an adhesive bond, for example by means of a double-sided adhesive tape 14 as an adhesive layer.

Furthermore, in the 3 only extremely schematically and by way of example the arrangement of a magnet 15 in the area of the lateral surface 16 of the magnetic cylinder 9 shown by means of the magnetic force on the spring steel bands 5 . 6 respectively. 7 can be applied. This magnet 15 is, for example, flush with the surface in the lateral surface 16 of the magnetic cylinder 9 used and preferably extends over the entire length of the magnetic cylinder 9 seen in Zylinderachsrichtung x. Alternatively to inserting a magnet 15 of course also be provided to generate the magnetic field in other ways here.

Like this further in particular the 2 can be taken close in cylinder axis direction x seen on both sides of the magnetic cylinder 9 Running or bearer rings 17 on, with corresponding frontally arranged running or bearer rings 18 a counter-pressure cylinder 19 a rotary die cutter 20 cooperate, wherein it is preferably provided that on the impression cylinder 19 a back pressure fender 21 is stretched.

Once the film 1 outside the rotary die 20 With a given tool pattern has been provided with predetermined tools, this film can stand in the manner described above on the magnetic cylinder 9 be clamped and then not shown here, for example, to be punched or to be grooved or perforated punched between magnetic cylinder 9 and impression cylinder 19 be moved in a conventional manner, the tool 8th then dents or grooves or perforates this material accordingly. If, after such a procedure, another operation is to be performed with another tool pattern and / or with other tools, the still film can 1 in a simple way from the magnetic cylinder 9 be removed. Then, for example, the here through the tool 8th symbolized tools from the still film 1 removed and a new tool pattern on the film 1 applied. Alternatively, the still film 1 For example, be stored in a hanging file and the new processing order with an optionally existing pre-equipped with tools film from the archive of the Hängeregistratur be performed.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 29805004 U1 [0003]
• WO 99/51440 A1 [0005]

Claims (10)

Tool carrier arrangement on a magnetic cylinder of a rotary punching device, with a tool carrier, on which at least one tool is arranged with a predetermined pattern, wherein the tool carrier is held by means of a magnetic cylinder emanating from the magnetic force in an abutment on the magnetic cylinder, characterized in that the tool carrier by a stand-up film ( 1 ) is formed of a plastic material, in the on the magnetic cylinder ( 9 ) has a defined positioning pattern for tools, in particular a grid line structure, on the basis of which the at least one tool ( 8th ) exact position on the film ( 1 ) can be arranged and detachably fastened, and that the film ( 1 ) in at least one defined film area with one of the magnetic cylinder ( 9 ) magnetically attractable material, in particular with a ferromagnetic material, is provided which the stand foil ( 1 ) in an abutment connection on the magnetic cylinder ( 9 ) holds. Tool carrier arrangement according to claim 1, characterized in that the still film ( 1 ) at least at their opposite in the cylinder circumferential direction edge edge regions ( 3 . 4 ) each with at least one band ( 5 . 6 . 7 ), preferably at least one steel strip, most preferably at least one spring steel strip, of a magnetically attractable, in particular ferromagnetic material is provided. Tool carrier arrangement according to claim 2, characterized in that the bands ( 5 . 6 . 7 ), in particular steel strips, with the respective associated edge edge region ( 3 . 4 ) by means of an adhesive bond ( 13 ) are cohesively connected. Tool carrier arrangement according to claim 2 or 3, characterized in that the opposite to the cylinder circumferential direction in the peripheral edge regions ( 3 . 4 ) arranged bands ( 5 . 6 . 7 ), in particular steel bands, in each case at least one hole-like recess ( 11 ) by means of which the still film ( 1 ) on cylinder-side positioning and / or dowel pins ( 10 ) can be suspended, in particular can be suspended in a form-fitting manner. Tool carrier arrangement according to claim 4, characterized in that the positioning and / or dowel pins ( 10 ) relative to the cylinder circumferential direction substantially at approximately the same height on the magnetic cylinder ( 9 ) are arranged and spaced there from one another in the cylinder axis direction in such a way that the peripheral edge regions ( 3 . 4 ) and there each only over a portion of the film ( 1 ) extending bands, in particular steel bands ( 5 . 6 . 7 ), at different positioning and / or dowel pins ( 10 ) are hooked and interlock positively to form a substantially continuous in the cylinder axis direction strip-like band area. Tool carrier arrangement according to claim 5, characterized in that on a first peripheral edge ( 3 ) of the film ( 1 ) two spaced in Zylinderachsrichtung bands ( 5 . 6 ) are arranged, are arranged in particular on the opposite in Zylinderachsrichtung Randkantenendbereichen, and that at one of the first peripheral edge ( 3 ) of the film ( 1 ) in the cylinder circumferential direction opposite second peripheral edge ( 4 ) of the film ( 1 ), there in a middle area, a band ( 7 ) is arranged in the on the magnetic cylinder ( 9 ) clamped state form-fitting between the two at the first peripheral edge ( 3 ) of the film ( 1 ) arranged bands ( 5 . 6 ) engages and is arranged between them. Tool carrier arrangement according to one of the preceding claims, characterized in that the still film ( 1 ) is formed by a plastic film which is flexible at least in the circumferential direction of the cylinder and preferably has a material thickness of between 0.1 and 2.0 mm. Tool carrier arrangement according to one of the preceding claims, characterized in that the positioning pattern for tools by a rectangular grid line arrangement ( 2 ) is formed, in particular by a rectangular grid line arrangement in Millimetereinteilung is formed, wherein the spaced in the cylinder circumferential direction grid lines each have an equal distance from each other, but which distance is less than the always equal distance of the cylinder axis adjacent juxtaposed grid lines. Tool carrier arrangement according to one of the preceding claims, characterized in that the tool ( 8th ) is a punching and / or stamping and / or a perforating and / or a creasing tool which is detachable on the film ( 1 ), preferably glued. Standing film as a tool carrier made of a plastic material with a defined positioning pattern for tools, in particular a grid line structure, which is provided in at least one defined Standfolienbereich with a magnetically attractable material, in particular a ferromagnetic material, in particular for use in a tool carrier arrangement according to one of claims 1 to 9.

Images