EP3746311A1 - Vorrichtung zum befestigen eines prägewerkzeugs auf einer prägewalze - Google Patents
Vorrichtung zum befestigen eines prägewerkzeugs auf einer prägewalzeInfo
- Publication number
- EP3746311A1 EP3746311A1 EP19705459.6A EP19705459A EP3746311A1 EP 3746311 A1 EP3746311 A1 EP 3746311A1 EP 19705459 A EP19705459 A EP 19705459A EP 3746311 A1 EP3746311 A1 EP 3746311A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- embossing
- embossing tool
- tool
- roller
- recess
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
- B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
- B44B5/0047—Machines or apparatus for embossing decorations or marks, e.g. embossing coins by rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
- B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
- B44B5/02—Dies; Accessories
- B44B5/026—Dies
Definitions
- the invention relates to a device for fastening a stamping tool on an embossing roller, embossing structures being embossed into a substrate of valuables with the embossing tool.
- embossing tools for gravure or high pressure are used.
- a special application in this case is the use of structures which are particularly clearly recognizable by persons with visual obstruction.
- a particular embodiment in this case are the braille script or license plate, which are defined by typical points or line structures on the basis of the system or quantity, and represent, for example, a denomination of a banknote.
- intaglio printing a special form of intaglio printing, a printing plate with recessed structures is used, which transfers high-pressure areas to the substrate to be embossed.
- a special form is also the embossing with the help of a high-pressure plate, which is clamped on a solid solid cylinder, or a sleeve conversion in the conventional gravure printing.
- DE 10 2017005 838 A1 discloses a method for producing an embossing tool, in particular a blanket printing plate for blind embossing, wherein tactile detectable structures are embossed into a substrate with the embossing tool.
- the embossing tool is in this case generated via a galvanic Abformweg from a gravure plate, wherein initially a procurgemo tive is introduced into a gravure plate and then the embossing tool is produced by galvanic molding of gravure plate.
- the embossing pattern on the embossing tool consists of one or more protrusions on the front side of the embossing tool and one or more directly opposite recesses on the back side of the embossing tool.
- the invention is therefore the object of developing a generic device for attaching a stamping tool such that the disadvantages of the prior art are eliminated. Furthermore, a device for fastening a stamping tool is to be created, which enables a better reception on a cylinder or sleeve or on a magnetic cylinder.
- the embossing tool is bent around the embossing roller or a receiving cylinder, wherein the embossing roller on its Oberflä surface has a groove-shaped depression, wherein the groove-shaped recess is disposed parallel to the rotation axis of the embossing roll.
- the embossing tool is bent in such a way around the embossing roller that at least one of its edge regions is arranged above the channel-shaped depression.
- the embossing roller At these edge regions of the embossing roller bores and in the groove-shaped holes threaded holes are arranged, wherein screws are passed through the holes of the embossing tool in the threaded holes in the trough-shaped depression and connect the embossing tool with the trough-shaped depression, wherein tightening the Screws the embossing tool pulls into the trough-shaped recess and thereby biases the embossing tool on the surface of the embossing roller.
- the embossing tool is fixedly mounted on the embossing roller after being mounted on the embossing roller, and can not move on the embossing roller during an embossing operation. It can neither move back and forth in the longitudinal direction on the embossing roller, nor can a slip occur between the embossing tool and the embossing roller during rotation of the embossing tool.
- the edge region of the embossing tool which lies opposite the edge region which is arranged above the channel-shaped depression, is screwed or braced outside the recess with the surface of the embossing roller.
- the clamping thus takes place only at one edge region, the opposite edge region is firmly screwed to the embossing cylinder.
- the embossing tool is bent around the embossing roller in such a way that two opposite edge regions of the embossing tool lie above the groove-shaped depression. Both edge regions have bores where both edge regions overlap and one bore of an edge region completely overlaps a bore of the opposite edge region, so that tightening the screws pulls both edge regions of the embossing tool into the depression the embossing tool is clamped on the surface of the embossing roller. In contrast to the first embodiment, this results in an improved clamping, in which, in particular, no screwing on the surface of the embossing roller is required.
- the embossing tool can additionally be bent around at the two edge regions, wherein one edge region is bent upwards and the other edge region is bent downwards, so that both edge regions interlock when overlapping. Both edge regions are thus interlocked and hooked sin sin each other, so that in particular the mounting of the embossing tool on the embossing roller is simplified.
- the depth of the depression in the embossing roll is particularly preferably selected such that after the clamping of the embossing tool on the embossing roll, the screw is arranged at the level or preferably below the height of the surface of the embossing roll.
- the screw is thus arranged at the same height or deepened after the clamping with respect to the height of the surface of the embossing roller, so that advantageously no component protrudes beyond the depression in the embossing roller.
- a rail is arranged above the edge region or over both edge regions of the embossing tool, which are arranged above the depression, wherein the rail has bores which are congruent to the Holes are arranged in the embossing tool, wherein the screws are passed through the holes of the rail and the embossing tool in the prepared holes in the Bohrun with the thread in the recess, so that the screwing on the rail acting on the embossing tool.
- the rail causes a particularly advantageous stiffening in the region of the overlap of egg NEN or the two edge regions, so that the screw not only punctually acts on the holes, but is distributed evenly over the entire edge region.
- the groove-shaped depression in the embossing roller is designed so that it has a larger surface at its opening on the surface of the embossing roller, as at its bottom, for example, by the walls between the opening and the bottom are arranged radially in the direction of the center line of the embossing roller ,
- the rail is shaped accordingly, so in a shape that corresponds to the shape of the depression, so that after tightening and clamping a positive connection between the recess, the edge regions of the embossing tool and the rail results. It is also advantageous that the rail also has a radius on the top, which corresponds almost to the radius of the embossing roller.
- the hollow cylinder-shaped embossing tool is produced from a preferably rectangular or quadratic rule embossing plate, wherein the embossing plate is first bent cylindrically and finally assembled at their merging edges to the hollow cylinder-shaped embossing tool.
- the embossing plate is preferably initially made planar or planar and bent at closing to the hollow cylinder-shaped embossing tool, wherein the edges of the embossing tool brought together by bending who the. By dowel pins inserted into the embossing roller feeding the embossing plate can be further facilitated on the embossing roll in the clamping area.
- the embossing plate may be riveted or otherwise fixed prior to insertion to facilitate the process of application.
- the rail is supported by one or more dowel pins, so that the rail is guided through the dowel pins and inserted into the recess.
- the thickness d 2 of the wall of the hollow cylinder-shaped embossing tool is from 300 ⁇ m to 3000 ⁇ m, preferably from 250 ⁇ m to 2000 ⁇ m, and more preferably from 300 ⁇ m to 1000 ⁇ m.
- the circumference of the hollow cylinder-shaped embossing tool is preferably 300 mm to 1200 mm, more preferably 400 mm to 900 mm and most preferably 450 mm to 800 mm.
- the actual embossing height is at most d 2 - di and preferably corresponds to 100 pm to 2700 pm, more preferably 300 pm to 2000 pm and most preferably 350 pm to 1000 pm.
- Valuables that can be embossed with an embossing tool according to the invention are, in particular, bank notes, shares, bonds, certificates, vouchers, checks, high-quality admission tickets, but also other papers that are subject to counterfeiting, such as passports and other identity documents, as well as cards such as credit cards. or debit cards whose card body has at least one layer of security paper, and also product securing elements such as labels, seals, packaging, packaging, folding boxes, leaflets, blisters, foils, thin metal surfaces or soft metal molds or plastic molds and the like.
- the simplified term Valuable includes all of the above materials, documents and product safeguards.
- the substrate of the article of value is particularly preferably made of paper made of cotton fibers, as used for example for banknotes, or of other natural fibers or of synthetic fibers or of a mixture of natural and synthetic fibers, or of at least one plastic film.
- the substrate consists of a combi nation of at least two superimposed and interconnected different substrates, a so-called hybrid.
- the substrate consists for example of a combination of plastic film-paper plastic film, i. a substrate of paper is covered on either side by a plastic film, or a combination of paper plastic film paper, i. A plastic film substrate is covered by paper on each side.
- the paper layer usually has a weight of 50 g / m 2 to 100 g / m 2 , preferably from 80 g / m 2 to 90 g / m 2 .
- the paper layer usually has a weight of 50 g / m 2 to 100 g / m 2 , preferably from 80 g / m 2 to 90 g / m 2 .
- any other appropriate weight can be used.
- the substrate consists of a cardboard or a paper having a basis weight of 120 g / m 2 or more.
- outside or inside of the embossing cylinder, the embossing plate or their precursors are relative terms, which may also be referred to as “the one” and “the opposite” side and the form the predominant part of the overall surface of the embossing cylinder, the embossing plate or its precursor. Specifically not included with these terms are the side surfaces of a stamping cylinder or an embossing plate, which are negligibly small with a thickness of a stamping cylinder or a stamping plate up to a few millimeters and are usually not provided with embossing structures.
- FIG. 1 is a side view of a flat embossing tool
- 3 shows an oblique top view in FIG. 3a of a cylinder-shaped embossing tool according to the invention from FIG. 2 and in FIG. 3b an enlarged view of FIG. 3a with holes in the edge groove 4, a planar embossing tool with a bent Kantenbe rich and gearing and this in Fig. 4a in side view as a flat embossing tool and in Fig. 4b in oblique plan view as inventively cylindrically curved embossing tool, Fig. 5 in side view a screwing both edge regions and in this case in Fig. 5a even before the tension and in Fig. 5b after the tension in a depression in the embossing roller,
- FIG. 6 shows an oblique top view of a first embodiment of an embossing roller according to the invention with a depression
- Fig. 7 in side view a section of the embossing roller of Fig. 6 with a
- FIG. 1 shows a side view of a planar embossing tool or a planar embossing plate 1 with embossed structures 2, which consist of elevations.
- the embossing plate has a thickness di outside the embossed structures and a thickness d 2 inside the embossed structures.
- 2 shows an embossing plate 1 with embossed structures 2, which is bent over at its two opposite edge regions 3 and 4, wherein the edge region 3 is bent upwards and the edge region 4 is bent downwards so that both edge regions overlap one another can grab.
- FIG. 3 shows, in an oblique top view, the embossing tool 1 of FIG. 2 curved in accordance with the invention
- FIG. 3b shows an enlarged view of FIG. 3a with holes 5 and 6 in the edge areas.
- These holes 5 and 6 are designed in such a way that, when the two edge regions 3 and 4 overlap, they overlap one another congruently, resulting in a "through hole" for a screw.
- FIG. 4 shows a side view of a planar embossing tool 1 with edge recesses 7 and 8 in FIG. 4a, which has a toothing in the form of triangular
- FIG. 4b shows, in an oblique top view, the embossing tool 1 of FIG. 4a bent in a cylindrically curved manner according to the invention.
- the toothing prevents the edge regions 7 and 8 of the embossing tool 1 from being displaced in the circumferential direction.
- FIG. 5 shows a side view of the section of an embossing tool 1 with a clamping by a screw 9 of two overlapping edge areas.
- FIG. 5 a shows the embossing tool 1 before the bracing by the screw 9.
- FIG. 5 b shows the embossing tool 1 after the bracing In a trough-shaped recess 11 in the embossing roller 10.
- Such an embossing roller is shown in Fig. 6 in an oblique plan view.
- the embossing tool 1 By tightening the screw 9, the embossing tool 1 is pressed into the depression 11, so that the embossing tool 1 is braced in the direction of the two arrows and firmly against the surface of the embossing roller 10.
- Fig. 7 shows a side view of a section of the embossing roller 10 of FIG. 6, in which the screw 9 does not act directly, but via a rail 12 on the embossing tool.
- the embossing tool located in the recess 11 between the rail 12 and the embossing roller 10 is not shown in this figure for the sake of clarity.
- the rail has the same conical shape as the recess 11, and is slightly smaller than the recess 11, so that after screwing and clamping a positive connection between the recess 11, the edge regions of the embossing tool and the rail 12 results.
- the recess on the upper side of the rail 12 has the task that the head of the screw 9 is sunk after screwing, so that the entire area of the recess 11 share with all construction recessed with respect to the surrounding areas of the embossing roller 10 is arranged and Thus, particularly preferably, no component protrudes beyond this or protrudes therefrom.
Landscapes
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018000694.9A DE102018000694A1 (de) | 2018-01-29 | 2018-01-29 | Vorrichtung zum Befestigen eines Prägewerkzeugs auf einer Prägewalze |
| PCT/EP2019/000021 WO2019145115A1 (de) | 2018-01-29 | 2019-01-24 | Vorrichtung zum befestigen eines prägewerkzeugs auf einer prägewalze |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3746311A1 true EP3746311A1 (de) | 2020-12-09 |
Family
ID=65440938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19705459.6A Withdrawn EP3746311A1 (de) | 2018-01-29 | 2019-01-24 | Vorrichtung zum befestigen eines prägewerkzeugs auf einer prägewalze |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3746311A1 (de) |
| DE (1) | DE102018000694A1 (de) |
| WO (1) | WO2019145115A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018008225A1 (de) * | 2018-10-17 | 2020-04-23 | Giesecke+Devrient Currency Technology Gmbh | Prägewerkzeug für taktil erfassbare Strukturen |
| CN112828213B (zh) * | 2020-12-31 | 2022-09-23 | 刘露 | 一种手镯加工用智能弯折模具及手镯加工方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3513772A (en) * | 1969-01-27 | 1970-05-26 | Joseph Brasty | Apparatus for embossing paper sheets in an offset printing press |
| GB1368949A (en) * | 1971-11-17 | 1974-10-02 | Letraset International Ltd | Rotary die marking machines |
| FR2475461A1 (fr) * | 1980-02-08 | 1981-08-14 | Ferry Peter | Appareil d'impression en relief par deformation du papier |
| US5368789A (en) * | 1990-09-28 | 1994-11-29 | Canon Kabushiki Kaisha | Method for forming substrate sheet for optical recording medium |
| DE10243653A1 (de) | 2002-09-19 | 2004-04-01 | Giesecke & Devrient Gmbh | Sicherheitspapier |
| DE102017005838A1 (de) | 2017-06-21 | 2018-12-27 | Giesecke+Devrient Currency Technology Gmbh | Verfahren zur Herstellung eines Prägewerkzeugs für taktil erfassbare Strukturen |
| DE102017007525A1 (de) | 2017-08-10 | 2019-02-14 | Giesecke+Devrient Currency Technology Gmbh | Prägewerkzeug für taktil erfassbare Strukturen |
-
2018
- 2018-01-29 DE DE102018000694.9A patent/DE102018000694A1/de not_active Withdrawn
-
2019
- 2019-01-24 WO PCT/EP2019/000021 patent/WO2019145115A1/de not_active Ceased
- 2019-01-24 EP EP19705459.6A patent/EP3746311A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019145115A1 (de) | 2019-08-01 |
| DE102018000694A1 (de) | 2019-08-01 |
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