EP0469433B1 - Vorrichtung zum Anbringen eines Prägefolien-Abdruckes auf einer flexiblen Materialbahn - Google Patents

Vorrichtung zum Anbringen eines Prägefolien-Abdruckes auf einer flexiblen Materialbahn Download PDF

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Publication number
EP0469433B1
EP0469433B1 EP91112303A EP91112303A EP0469433B1 EP 0469433 B1 EP0469433 B1 EP 0469433B1 EP 91112303 A EP91112303 A EP 91112303A EP 91112303 A EP91112303 A EP 91112303A EP 0469433 B1 EP0469433 B1 EP 0469433B1
Authority
EP
European Patent Office
Prior art keywords
roller
embossing
nip roller
spacing
nip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91112303A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0469433A1 (de
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Leonhard Kurz Stiftung and Co KG
Original Assignee
Leonhard Kurz GmbH and Co KG
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Filing date
Publication date
Application filed by Leonhard Kurz GmbH and Co KG filed Critical Leonhard Kurz GmbH and Co KG
Publication of EP0469433A1 publication Critical patent/EP0469433A1/de
Application granted granted Critical
Publication of EP0469433B1 publication Critical patent/EP0469433B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
    • B41F19/02—Apparatus or machines for carrying out printing operations combined with other operations with embossing
    • B41F19/06—Printing and embossing between a negative and a positive forme after inking and wiping the negative forme; Printing from an ink band treated with colour or "gold"
    • B41F19/062—Presses of the rotary type
    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
    • C14B1/00—Manufacture of leather; Machines or devices therefor
    • C14B1/44—Mechanical treatment of leather surfaces
    • C14B1/56—Ornamenting, producing designs, embossing

Definitions

  • the invention relates to a device for applying an embossing foil impression on a flexible material web with a heated embossing roller and with at least one pressure roller, by means of which embossing foil and material web can be pressed against one another and against the surface of the embossing roller.
  • Such a device is known from DE 32 10 551 C2.
  • a number of pinch rollers are provided in pairs on a roller basket.
  • the pressure rollers can be adjusted individually, whereby first one or two adjacent inner pressure rollers and then progressively outwards the other pressure rollers can be brought into contact with the embossing roller. Esp.
  • sensitive flexible material webs such as, for example, banknote paper
  • a device is known from DE-B-1 300 850 in which a liquid material is applied to a first roller and is transported with the first roller into a nip between the first and a second roller.
  • the gap between the first and the second roller can be adjusted by means of eccentrics.
  • this known device is not a generic device for applying an embossing foil impression to a flexible material web.
  • the rollers forming a gap with one another are of the same axial length there.
  • US-A-2 958 094 describes a device for the continuous calendering of synthetic resin materials, wherein a roller is spaced apart from a second roller by means of spacers.
  • the spacers each have a certain diameter. To adjust the gap between the rollers, it is necessary to replace the spacers.
  • a device for producing strips of plastic which, in the plastic state, is profiled by means of two rolls forming a periodically changeable roll gap, at least one of which is drivable and rotates with a variable central axis, so that they have a variable thickness profile in the longitudinal direction.
  • the variable center axis is controlled there by a cam disk rotating with an eccentric roller.
  • the Bearing of the eccentric roller is provided on an eccentrically pivotably arranged eccentric shaft, the cam disc controlling the pivoting position of the eccentric shaft.
  • the invention has for its object to provide a device of the type mentioned, with which undesirable compression of the fibers of the flexible material web and thus an undesirable change in the properties of the flexible material web is avoided even with sensitive flexible material webs to be imprinted with an embossing foil impression, without affecting the operating speed of the device.
  • the / each pressure roller has a pair of spacer rings for the defined adjustment of the distance of the corresponding pressure roller relative to the surface of the embossing roller and thus for the defined adjustment of the pressure exerted by the pressure roller on the embossing film and the material web distal end portions of an axis are provided, on which the corresponding pressure roller is mounted, the spacer rings are mounted eccentrically on the corresponding axis, and that the axial width of the / each pressure roller is smaller than the axial width of the embossing roller.
  • the distance of the corresponding pressure roller relative to the embossing roller is advantageously possible to adjust the distance of the corresponding pressure roller relative to the embossing roller as a function of the thickness of the material web to be embossed and as a function of the thickness of the embossing film and thus the embossing pressure between the Set the embossing roller and the at least one pressure roller appropriately.
  • This advantageously prevents undesired compression of the material web, which is, for example, a banknote paper.
  • possible thermal expansion of the embossing roller can be compensated for in a simple manner.
  • Another advantage of the device according to the invention is that it can be implemented very easily through the design with the two spacer rings, which are provided on the two distal end sections of an axle on which the corresponding pressure roller is mounted.
  • the device according to the invention is particularly advantageous in that the axial width of the / each pressure roller is smaller than the axial width of the embossing roller, because as a result the embossing roller has a virtually constant temperature profile in the region of the corresponding pressure roller, ie an at least approximately constant temperature. This has a positive effect on the embossing behavior of the device in such a way that the embossing speed can be relatively high without the embossing process being adversely affected thereby.
  • the ratio of the axial width of the / each impression roller to the axial width of the embossing roller can be, for example, between 0.8 and 0.05, or larger or smaller.
  • Such a design of the device has the advantage, in particular with a small quotient, that the embossing roller can be designed to be relatively wide compared to the width of the flexible material web to be embossed, so that the temperature of the embossing roller in the area of the pressure roller is virtually constant in the axial direction , which has a positive effect on the embossing behavior between the embossing roller and the comparatively narrow at least one pressure roller.
  • the two spacer rings of the setting device of a pressure roller are each mounted on an associated eccentric sleeve which is fastened to the axis of the corresponding pressure roller.
  • a single pressure roller can be provided on a corresponding axis.
  • a number of pressure rollers can also be provided, preferably spaced apart from one another.
  • Each setting device can have a manually operated setting element.
  • This setting element is, for example, a rotary knob with a scale that can interact with a marking provided on the device in a stationary manner.
  • the manually operated adjusting member is therefore preferably provided for changing the angular position of the axis of the corresponding pressure roller located in the pressure position with respect to the embossing roller.
  • the device has more than one pressure roller, it is advantageous if the pressure roller is arranged at a distance from the at least one spacer ring and a support roller is provided in the space between the pressure roller and the corresponding spacer ring. which has a slightly smaller diameter than the pressure roller.
  • the support roller provided in the space between the pressure roller and the corresponding spacer ring, the flexible material web is prevented from twisting due to the comparatively narrow support on the at least one pressure roller, which is narrow compared to the embossing roller, so that the sensitive flexible material web is not impaired, that is to say without undesired compression and the resulting change in material properties enables a high working speed to be achieved.
  • the at least one support roller has an axial length which is adapted to the distance between the pressure roller and the associated spacer ring.
  • An embodiment of the device according to the invention for attaching an embossing foil impression to a flexible material web is shown in sections and partially cut open in the drawing and is described below.
  • the figure shows the device 10 for applying an embossing foil impression on a flexible material web with an embossing roller 12 drawn in sections, which can be heated.
  • the device 10 has rockers 16, of which one is indicated, on a base part 14 indicated in sections.
  • a pressure roller 24 is rotatably mounted on the axis 20 and has only a small axial dimension in comparison to the embossing roller 12. It is of course also possible to rotatably mount more than one pressure roller 24 on each corresponding axis 20.
  • the pressure rollers 24 on the associated axis 20 are preferably arranged at a distance from one another.
  • the distance between the individual pressure rollers can also be adjustable.
  • the rotatable mounting of the / each pressure roller 24 on the axis 20 takes place by means of roller bearings 26 known per se.
  • plate elements 28 are used, through which the corresponding axis 20 extends, and which are connected to one another and fastened to the corresponding rocker 16 are.
  • the pressure roller 24 is mounted exactly centrally on the associated axis 20.
  • An eccentric sleeve 30 of an adjusting device 32 is attached to each of the two opposite end sections of the corresponding axis 20, with the aid of a pin element 34, each of the two eccentric sleeves 30 having an eccentric section 36 with a wall thickness that changes along the circumference, as is readily apparent from the drawing is.
  • a spacer ring 38 is rotatably mounted on the eccentric section 36 of each of the two eccentric sleeves 30, with each spacer ring 38 being supported on the corresponding eccentric section 36 by means of roller bearings 40.
  • the two eccentric sleeves 30 belonging to an axis 20 are designed conformally and are oriented identically in the circumferential direction of the corresponding axis 20, ie in the direction the longitudinal center line 22 of the axis 20 overlapping.
  • the two spacer rings 38 rest with their outer lateral surface 42 on the cylindrical surface 44 of the embossing roller 12, so that the distance between the embossing roller 12 or its surface 44 and the outer surface is possible by rotating the corresponding axis 20 around its longitudinal center line 22 46 of the associated pressure roller 24 as desired, in order to be able to set the pressure in a defined manner, which is exerted on the (not shown) embossing foil and the (not shown) material web which are moved through between the embossing roller 12 and the pressure roller 24 at a suitable working speed.
  • Support rollers 48 are indicated by thin dashed lines and can be provided on the corresponding axis 20 between the spacer rings 38 and the pressure roller 24.
  • the adjusting device 32 is formed with a manually operated adjusting member 50, with which it is possible to adjust the corresponding axis 20 and with it the two eccentric sleeves 30 at a suitable angle about the associated longitudinal center line 22 in order to adjust the distance between the embossing roller 12 and the Adjust the pressure roller 24 as required and determine the pressure between the stamping foil and the material web to be stamped that is suitable for an exact stamping.
  • Support rollers 48 are preferably only assigned to the outermost pressure roller of two pressure roller groups if the device 10 is spaced apart and to one another Axially parallel arranged pressure rollers 24, which - as described for example in the aforementioned DE 32 10 551 C2 - each combined to form pressure roller pairs mounted on rockers 16 and arranged in two groups symmetrically to the embossing roller 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Decoration By Transfer Pictures (AREA)
  • Press Drives And Press Lines (AREA)
EP91112303A 1990-08-02 1991-07-23 Vorrichtung zum Anbringen eines Prägefolien-Abdruckes auf einer flexiblen Materialbahn Expired - Lifetime EP0469433B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4024537 1990-08-02
DE4024537A DE4024537C1 (ja) 1990-08-02 1990-08-02

Publications (2)

Publication Number Publication Date
EP0469433A1 EP0469433A1 (de) 1992-02-05
EP0469433B1 true EP0469433B1 (de) 1995-05-31

Family

ID=6411505

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91112303A Expired - Lifetime EP0469433B1 (de) 1990-08-02 1991-07-23 Vorrichtung zum Anbringen eines Prägefolien-Abdruckes auf einer flexiblen Materialbahn

Country Status (5)

Country Link
EP (1) EP0469433B1 (ja)
JP (1) JPH0729375B2 (ja)
AT (1) ATE123252T1 (ja)
DE (1) DE4024537C1 (ja)
DK (1) DK0469433T3 (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4226003C1 (ja) * 1992-08-06 1993-06-24 Leonhard Kurz Gmbh & Co, 8510 Fuerth, De
DE19523441A1 (de) * 1995-06-28 1997-01-02 Kurz Leonhard Fa Prägewalze für eine Prägevorrichtung
EP1393904B1 (fr) * 2002-08-19 2007-06-20 Bobst S.A. Presse rotative pour déposer des motifs sur un substrat en bande
EP3165365A1 (en) 2015-11-05 2017-05-10 KBA-NotaSys SA Sheet-fed stamping press comprising a foil laminating unit
EP3165366A1 (en) * 2015-11-05 2017-05-10 KBA-NotaSys SA Sheet-fed stamping press having a foil laminating unit
EP3173232B2 (en) 2015-11-30 2022-10-12 Koenig & Bauer Banknote Solutions SA Hot-stamping press and hot stamping method
CN108676929B (zh) * 2018-04-12 2021-07-02 曾培玉 一种篮球制造用皮革压花装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2958094A (en) * 1957-04-04 1960-11-01 Montedison Spa Apparatus for continuous calendering of resinous materials, particularly synthetic thermosetting resins
US3317334A (en) * 1959-12-30 1967-05-02 Harris Intertype Corp Coating apparatus
DE3210551C2 (de) * 1982-03-23 1984-11-08 Fa. Leonhard Kurz, 8510 Fürth Verfahren und Vorrichtung zum Anbringen eines Prägefolien-Abdruckes auf einer flexiblen Materialbahn

Also Published As

Publication number Publication date
ATE123252T1 (de) 1995-06-15
JPH0729375B2 (ja) 1995-04-05
EP0469433A1 (de) 1992-02-05
DE4024537C1 (ja) 1991-05-02
DK0469433T3 (da) 1995-07-31
JPH04226737A (ja) 1992-08-17

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