EP2098381B1 - Procédé et dispositif destinés à imprégner des pièces à usiner - Google Patents

Procédé et dispositif destinés à imprégner des pièces à usiner Download PDF

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Publication number
EP2098381B1
EP2098381B1 EP20090003340 EP09003340A EP2098381B1 EP 2098381 B1 EP2098381 B1 EP 2098381B1 EP 20090003340 EP20090003340 EP 20090003340 EP 09003340 A EP09003340 A EP 09003340A EP 2098381 B1 EP2098381 B1 EP 2098381B1
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EP
European Patent Office
Prior art keywords
rollers
embossing
punching
pressure
pressure rollers
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.)
Active
Application number
EP20090003340
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German (de)
English (en)
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EP2098381A2 (fr
EP2098381A3 (fr
Inventor
Helmut Högl
Norbert Höfler
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 Stiftung and Co KG
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Publication of EP2098381A2 publication Critical patent/EP2098381A2/fr
Publication of EP2098381A3 publication Critical patent/EP2098381A3/fr
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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
    • B44B5/02—Dies; Accessories
    • B44B5/028—Heated dies
    • 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
    • B44B5/0004—Machines or apparatus for embossing decorations or marks, e.g. embossing coins characterised by the movement of the embossing tool(s), or the movement of the work, during the embossing operation
    • B44B5/0009—Rotating embossing tools
    • 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
    • B44B5/0071—Machines or apparatus for embossing decorations or marks, e.g. embossing coins which simultaneously apply a decorative material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
    • B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
    • B44C1/17—Dry transfer
    • B44C1/1712—Decalcomanias applied under heat and pressure, e.g. provided with a heat activable adhesive
    • B44C1/1729—Hot stamping techniques

Definitions

  • the invention is based on a method for embossing along a preferably stationary transport path guided workpieces, for. As panels, with a film, preferably laminating or transfer film, z. B. hot stamping foil, wherein the workpieces surfaces, preferably formed as chamfer surfaces surfaces that extend on the workpieces along the transport path and be embossed.
  • An embossing device arranged on the transport path is used which has at least two support rollers and a circumferentially driven embossing belt of silicone, elastomer, rubber or plastic which forms an embossing path in the area between the support rollers by means of pressure rollers.
  • the embossing of the surface to be embossed of the workpiece takes place while the relevant surface passes the embossing path along the transport path.
  • the invention is based on an embossing device, which for embossing guided along a transport path workpieces, for. As panels is formed.
  • the embossing is carried out with a film, preferably laminating or transfer film, z.
  • B. hot stamping foil wherein the workpieces are embossed on surfaces which are preferably formed as chamfer surfaces. The chamfer surfaces extend along the transport route.
  • the embossing device has at least two support rollers and a circumferential embossing belt made of silicone, elastomer, rubber or plastic, which in the area between the support rollers acted upon by pressure rollers forms an embossing path in which the embossing of the chamfer surface takes place while the surface of the workpiece to be embossed embossing path along the Transport route happened.
  • the embossing path in the case of the use of a hot stamping foil, the foil is applied to the workpiece guided in the transport path under the influence of pressure and temperature via the embossing belt. In practice, this is called impressing or embossing the workpiece with the film.
  • Such devices for embossing are z. B. from the DE 41 21 766 C2 , of the DE 102 16 139 C1 and the DE 103 52 700 B3 known. These documents describe embossing devices each having two back-up rolls and a driven idler roll arranged in a triangle configuration with a circumferential embossing belt. These embossing devices each have an embossing path, which is formed between the two guide rollers.
  • so-called stabilizing or stabilizing rollers can be arranged as pressure rollers, with their axes of rotation parallel to the axes of the support rollers. They are arranged with their outer surface of the support rollers and ensure that a uniform contact pressure of the embossing belt is realized over the entire embossing path formed between the two support rollers.
  • embossing of workpieces with chamfered edges which are designed to be constant over the length of the chamfers, can be carried out with the known embossing devices with high precision at high embossing speed.
  • the invention has for its object to provide a stamping method and an embossing device, which allow a proper embossing of surfaces whose configuration varies over the length.
  • This solution provides that the pressure layer of the embossing belt is secured and supported on the surface to be embossed in the embossing path in the area between the support rollers via pressure rollers.
  • the pressure rollers are arranged between the support rollers and act on the embossing belt in the region of the embossing path, by rolling on the embossing belt in the section of the embossing path on the side of the embossing belt which faces away from the film.
  • the pressure rollers are tracked depending on the variation of the design of the area to be embossed.
  • the area to be embossed By varying the configuration of the surface to be embossed, it is to be understood that the area to be embossed, over its length running along the transport path, has an irregular course in its shape design, ie, a variation, for example, in the shape of the surface. B. with regard to the distance position and / or the angular position.
  • the tracking of the pressure rollers means that the pressure rollers are tracked with their outer surfaces forming the pressure surfaces on the embossing belt, depending on the variation of the configuration of the surface to be embossed, ie, for example, with respect to their distance position and / or their angular position of the surface to be embossed.
  • the pressure rollers are mounted correspondingly movable, so that their axes of rotation are mounted slidably in terms of their distance position and / or their angular position in the embossing device. Additionally or alternatively, the tracking of the pressure rollers can take place in that they have a correspondingly elastically deformable jacket. With the elastic deformation of the shell is in a similar manner as in the mobile storage of the pressure rollers ultimately the outer surface of the pressure rollers, which form the pressure surface to the embossing belt, tracked according to the variation of the surface to be embossed.
  • a plurality of pressure rollers between the support rollers only one pressure roller can be provided, ie, the single pressure roller can replace the plurality of pressure rollers. It can be tracked in the same way or the same way as the multiple pressure rollers.
  • the tracking is preferably carried out automatically, for. B. by the movably mounted pressure rollers are spring-loaded, motor, in particular servo motor, z. B. with electronically controlled and controlled servomotors or pneumatically controlled.
  • the pressure rollers are in their maximum extended position with its outer surface, which form the pressure surfaces for embossing belt, spaced above the tangential plane of the support rollers.
  • the pressure rollers are preferably arranged with their pressure surfaces in the region of the tangential plane of the support rollers.
  • the embossing process is usually under the pressure effect of the pressure rollers when they are arranged protruding in a more or less extended position with their contact surfaces on the tangential plane of the support rollers and roll on the inside of the adjacent to the surface to be embossed with the interposition of the film embossing belt.
  • Extending beyond the tangential plane means that the pressure surfaces of the pressure rollers are arranged at least in sections on the side of the tangential plane facing the embossing belt.
  • This arrangement relative to the tangential plane of the support rollers is preferably in question, when the tangential plane is arranged stationary to the transport path.
  • embodiments are also conceivable in which the support rollers are similar to the pressure rollers to some extent traceable and thus their tangential plane is not stationary.
  • the measure of the distance position of the pressure rollers to the tangential plane is chosen depending on the distance of the support rollers, in such a way that the embossing belt in its course between the first support roller and the adjacent first pressure roller forms an acute angle with the tangential plane of the support rollers.
  • a shallow angle is sought in order to ensure that the workpiece passing through the embossing device is well entrained with the embossing belt and that disadvantageous jerking of the workpiece and uneven course of the embossing belt are prevented.
  • an angle is adjusted by 1 ° to 3 °. This corresponds to a distance between the outer side of the pressure rollers and the tangential plane of the support rollers of the order of 1.5 mm with an axial distance of the support rollers of 20 mm.
  • the pressure rollers are guided in the course of tracking so that the embossing belt acting outside of the pressure rollers in a maximum retracted position and / or a maximum compressed operating state of the pressure rollers extends at least approximately in the region of the tangential plane of the support rollers.
  • the tracking of the pressure rollers takes place individually or in groups, preferably independently of one another. This can be done via separate movable storage of the individual pressure rollers or separate movable storage of the pressure roller groups.
  • the individual pressure rollers or pressure roller groups are in this case preferably mounted movably to the tangential plane of the support rollers.
  • the individual pressure rollers or the pressure roller groups can thus be tracked independently of each other.
  • the deflection of the pressure rollers can be done by spring action and / or motor loading, preferably with separate spring or Motorbeetzschung the individual pressure rollers or pressure roller groups.
  • the pivot bearing of the pressure rollers spring-loaded directly or indirectly and / or motor-mounted movable are. It can also be provided that the pivot bearing of the pressure rollers are movably mounted in a carrier and / or housing of the embossing device.
  • the outside diameter of the pressure rollers is preferably chosen to be relatively small in comparison to the diameter of the support rollers.
  • the tracking of the pressure rollers takes place by means of a link with sliding guide, in which a pivot bearing of the pressure roller is guided. It can be advantageously provided that the backdrop in relation to the tangential plane of the support rollers and / or in relation to the transport path is kept movable or immovable.
  • the embossing device and / or the support rollers is arranged stationary to the transport path.
  • the position of the embossing device and / or the support rollers is adjusted in the course of tracking with respect to the transport path, preferably under spring action and / or via another control.
  • the surface to be embossed may be a matter of various surfaces of the workpieces, in particular beveled surfaces of the workpieces.
  • the workpieces may be formed as a plate-shaped body, for. B. panels.
  • the variation of the configuration of the surface to be embossed it can be provided that the variation of the configuration of the surface to be embossed is designed according to a predetermined desired variation. It can be provided that the desired variation has periodic repetitions. It can also be provided that the variation of the design of the surface to be embossed consists of a desired variation and a composed production error-related variation, wherein the target variation is greater than the production error-induced variation is formed.
  • the variation of the configuration of the surface to be embossed can be designed with regard to the angular position and / or the distance with respect to the position of the transport path. It is possible in this case that the configuration of the surface to be embossed is already varied for a single workpiece and / or that the design of the surface to be embossed is varied for at least two successive workpieces, i. the design of the surface to be embossed of the first workpiece is different than the configuration of the surface to be embossed of the subsequent workpiece.
  • the embossing device in FIG. 1 comprises an embossing device 1, which is arranged on a transport path 2. Along the transport path 2 to be impressed workpieces 3 are performed.
  • the embossing device 1 is formed of two support rollers 1a, a deflection roller 1b and a circumferentially driven around these three rollers support body belt, referred to in the following embossing belt 1c.
  • the embossing band 1c is designed as a silicone band.
  • a metal reinforcement of the silicone strip is possible and preferred in order to increase the mechanical stability of the silicone strip.
  • an embodiment with elastomers, rubbers or plastics in question in principle so materials that have similar properties as silicones, namely a high temperature resistance and as constant and easily adjustable elasticity over the highest possible temperature range.
  • the embossing device 1 has as in FIG. 1 recognizable, triangle configuration, that is, the two support rollers 1a and the guide roller 1b are arranged in a triangular configuration, so that the circumferential embossing belt 1c has a substantially triangular orbit.
  • the embossing path 1p of the embossing device 1 is arranged, specifically in a section of the outer surface of the embossing belt 1c, which is acted upon by the three pressure rollers 1d.
  • a heating device 1h is arranged in the region of the two legs relative to the deflection roller 1b. This ensures that the embossing belt 1 c is heated and thus in the embossing path 1 p of the embossing process can be carried out under the action of pressure and temperature. This is necessary in the use of a hot stamping foil so that during the embossing process the transfer layer of the hot stamping foil is properly detached from the carrier foil and impressed on the surface of the workpiece to be embossed.
  • the heaters 1h the embossing belt 1 c is heated.
  • the circulation of the embossing belt 1 c in the orbit cools the embossing belt in the embossing path 1p in its longitudinal extent.
  • An essential feature of the embossing device 1 is that between the support rollers 1a, the pressure rollers 1d are arranged, which deflect the embossing belt 1c to the surface to be printed of the workpiece 3 to the outside and there press on the surface to be embossed, so that the pressure rollers in their Position can be tracked if the configuration of the surface to be embossed varies with respect to their distance position and / or angular position along the embossing path, as is the case with the workpieces used and in conjunction with the Figures 2 and 3 is explained. This tracking of the pressure rollers 1d takes place in FIG. 1 on the spring loading of the pressure rollers automatically.
  • Different embodiments of embossing devices which differ by different construction of the pressure roller device, will still be in connection with the FIGS. 1a, 1b, 1c . 2x . 3x . 3y and 3z described in detail.
  • the embossing section 1 p of the embossing device 1 is arranged along the transport path 2.
  • the transport route 2 is part of an in FIG. 1 Transport device, not shown, in which the workpieces 3 arranged one behind the other are moved past the embossing devices 1, 1 at a feed speed.
  • the feed rate corresponds to the rotational speed of the embossing belt 1c.
  • the workpieces 3 are arranged fixed in the transport path 2 on a not shown in detail with the relevant feed speed driven conveyor belt.
  • the attachment is such that the workpieces 3 are taken with the conveyor belt without play and are fixed in position on the conveyor belt in the longitudinal and transverse directions.
  • This fixation can take place, for example, in that the workpieces are braced via fastening elements with the conveyor belt or are fixed on the surface of the conveyor belt via a suction device in conjunction with frictional engagement.
  • the chamfer surface of the workpieces 3 is stamped with a foil 4.
  • the film 4 is in each case designed as a hot embossing film which has a transfer layer 4a and a carrier film 4b.
  • the stamping foil 4 is in FIG. 1 supplied from a film feeding device 5a of the embossing device 1.
  • the film feed device 5a comprises a film unwinder 5a1 and a plurality of deflection rollers 5a2.
  • the stamping foil 4 is the embossing device 1 in FIG. 1 fed so that the embossing device 1 is passed from the workpieces 3 from left to right.
  • the embossing device 1 forms the embossing path 1p in which the workpieces which have just been passed through the embossing device 1 are embossed with the embossing film 4 which is just passing.
  • the embossing path 1p is formed by the pressure region of the embossing belt 1c on the workpiece to be embossed.
  • This pressure area is formed on the outside of the embossing belt 1 c in the outer region of the pressure rollers 1d.
  • the embossing path 1c thus extends in the area between the two terminal pressure rollers 1d.
  • the pressure rollers 1d are roller-shaped rollers. They are mounted axially parallel to the support rollers 1a and have a smaller diameter than the support rollers.
  • the transfer layer 4a is impressed under the action of pressure and elevated temperature on the surface 3a to be embossed of the workpiece 3 and detached from the carrier film 4b when using a hot stamping foil 4 with transfer layer 4a and carrier film 4b.
  • the untransferred carrier film 4b is drawn off as waste via the film removal device 5b at the end of the second embossing device 1 from the embossed surface.
  • the Folienab 2010 Steinest 5b has for this purpose in FIG. 1 a film unwinder 5b1, which peels off the carrier film 4b via deflection rollers 5b2 and winds on a cross-wound bobbin of the film unwinder 5b1.
  • the workpieces 3 used in the present case are in the form of panels, preferably floor panels, which each have a chamfered edge on opposite sides.
  • panels preferably floor panels, which each have a chamfered edge on opposite sides.
  • first embodiment of the panel 3 is on the opposite sides of the edge each chamfered to form a Chamfer surface 3a, wherein the chamfer angle ⁇ varies over the length of the chamfer.
  • the bevel angles ⁇ are different at the three interfaces.
  • the lower edge of the chamfer surface 3a is parallel to the plane of the panels or parallel to the flat bottom and top edges of the panels and thus linear. In this case, however, the upper edge of the chamfer surface is not linear due to the variation of the flank angle, in the case shown in a wave structure running.
  • the two opposite edges are also chamfered, but in contrast to FIG. 2 such that in each case 2 chamfer surfaces 3a1, 3a2 adjoin each other at an angle.
  • the upper chamfer surface 3a1 has the chamfer angle ⁇ 1 and the lower chamfer surface the chamfer angle ⁇ 2, wherein both the chamfer angle ⁇ 1 and the chamfer angle ⁇ 2 varies over the length of the chamfer, as shown in the sectional views in FIG Figures 3a, 3b and 3c can be seen.
  • the chamfer surface 3a varies not in their angle, but in their depth, because the chamfer surface 3a by a (not shown) milling head was produced, which is oszilierend “more” or “deeply immersed” in the wood, while its angular position to the panel is kept constant.
  • the lower chamfer surface 3a2 extends at a constant chamfer angle in a common plane in alignment over the entire length of the panels.
  • FIG. 4b is a sectional view in a wide-width region of the upper land surface 3a1.
  • FIG. Figure 4c FIG. 12 is a sectional view in a narrow widthwise area of the upper land surface 3a1 and FIG FIG. 4a a sectional view in a region of average width extension of the upper chamfer surface 3a1.
  • the embossing device 1 In order to obtain a uniform embossing of the chamfer surface running irregularly over its length, it is provided that the embossing device 1, as described with reference to FIGS FIG. 1 already described, a pressure roller device whose pressure rollers 1d are mounted in the embossing device 1 so that they are tracked during the embossing process the irregular course of the surface to be embossed
  • FIG. 1a and in FIGS. 1b1 and 1b2 two different embodiments of such embossing device 1 are shown. They differ in each case in the pressure roller device.
  • the pressure rollers 1d are mounted so that they are movable with respect to their distance position Ix to the stationary tangential plane V of the support rollers 1 a.
  • the stationary tangential plane V is the tangential plane of the outer sides of the support rollers 1a, between which the embossing belt 1 c is clamped to form the embossing path 1p.
  • compression springs 1f On the pivot bearing 1l of the pressure rollers 1d act compression springs 1f.
  • the pressure rollers 1 d are respectively urged outward and extended more or less against the tangential plane V of the support roller.
  • the outer edge of the pressure rollers 1d acting on the embossing belt 1c are at a distance above the stationary tangential plane V of the support rollers 1a. They form the tangential plane T, as in FIG. 1a recognizable, at a distance parallel to the tangent plane V is arranged.
  • the pressure rollers 1d are driven so far outward under the action of the springs 1f that they deflect the embossing belt 1c in contact with the surface to be embossed and press it, while unrolling on the underside of the embossing belt.
  • the counterpressure forms the surface to be embossed of the guided in the transport path 2 workpiece 3 (see FIG. 1 ).
  • the sliding guides 1s in which the individual pressure rollers 1d are mounted with their pivot bearings, are each designed as separate sliding bearings 1s and thus the individual pressure rollers 1d in the embossing position each depend on the respective location of the respective elements to be embossed Area can be extended.
  • the pressure rollers 1d can thus also be angularly pivoted, in that the terminal pivot bearings 1l of the pressure rollers assume different vertical positions in the opposite sliding bearings 1s.
  • the pressure rollers 1d are guided in a pivotable link device 1k.
  • the pivot bearing 1l of the pressure rollers 1 d guided in opposite guide slots of the link device 1 k and not shown springs 1f, as in FIG. 1 , also spring-loaded to the inside of the embossing belt 1c.
  • the pressure rollers 1d are angularly displaced with their axis of rotation relative to the tangential plane V of the support rollers, namely by adjusting one of the angular positions of the deflection surface wx corresponding to the area to be embossed.
  • FIG. 1a is that a particularly accurate and fast-response tracking is guaranteed, especially when taking place over a short distance large changes in angle of the surface to be printed.
  • FIG. 1a ensures a particularly accurate and fast response tracking when the distance position of the area to be embossed varies particularly strong.
  • Figure 2x shows the embossing device 1 in the imprinting on a panel according to FIG. 2 ie with chamfered edge with a chamfer surface 3a.
  • the pressure roller is pivoted in the illustrated embossing position with respect to the tangential plane V of the support rollers 1a by the deflection angle wx.
  • the width of the embossing belt 1c is greater than the width of the beveled surface 3a to be embossed.
  • the width of the embossing belt 1c is selected so that it is wider than the maximum width of the chamfer surface 3a.
  • the width of the chamfer surface 3a varies over the length of the chamfer. Therefore, the width of the transfer film 4 is greater than the maximum width of the chamfered beveled surface 3a of the workpiece selected.
  • the transfer film 4 projects over the beveled chamfer surface 3a on both sides in the imprinting position.
  • the embossing takes place exclusively in the region in which the embossing belt 1c comes to rest during the embossing process under pressure on the chamfer surface 3a and the intermediate transfer film.
  • the remaining portions of the film, which are not applied to the chamfer surface 3a, remain on the support film 4b as non-distinctive components and adhere to the projecting distinct components at the edge of the chamfer surface 3a. They are removed in the embossing process subsequent steps on brushes or the like.
  • FIG. 3x shows the embossing of an embossing device when embossing a panel according to FIG. 3 ie with chamfered edge with two chamfer surfaces 3a1, 3a2.
  • the embossing device 1 used is the tracking of the pressure rollers 1 and the embossing belt 1c characterized in that both the embossing belt and the peripheral skirt of the pressure rollers 1 d are elastically deformable so that they are adapted to the angular configuration of the chamfer over the length the chamfer changes, adapt by appropriate elastic deformation.
  • the pressure roller 1d In the central axis of rotation, the pressure roller 1d is rigid, ie not deformable. As in FIG.
  • the elastic deformation is realized only in the circumferential shell of the pressure roller 1 d with rigid linear axis of rotation.
  • the embossing band 1 c is elastically deformed.
  • the embossing of the two chamfer surfaces 3a1, 3a2, which are at an obtuse angle with each other takes place with a common foil 4.
  • This foil 4 has a width which covers the width of the two chamfer surfaces 3a1 and 3a2 and, as in FIG Figure 2x something overhangs on the edge.
  • the width of the embossing belt 1 c applies to the embodiment of FIG. 3x corresponding, as above for the embodiment of Figure 2x explained.
  • the Figures 3y and 3z also show the recupergewolf when embossing a panel of FIG. 3 ,
  • the upper chamfer surface 3a1 and the lower chamfer surface 3a2 are each assigned separate embossing means 1,1.
  • the embossing devices 1, 1 are arranged such that the embossing lines are arranged at an angle to one another, namely at an angle corresponding to the obtuse angle formed by the two adjoining chamfer surfaces 3a1 and 3a2.
  • embossing path 1p of the first embossing device 1 lies in the plane of the first chamfer surface 3a1 and the embossing path 1p of the first embossing device 3a second embossing device 1 lies in the plane of the second chamfer surface 3a2.
  • the embossing lines 1 p thus form the same obtuse angle with each other as the planes of the chamfer surfaces 3a1, 3a2.
  • the two embossing devices 1.1 in Figure 3y are preferably arranged close to each other. They can be combined as a common unit, for example with a common carrier, wherein the embossing means are arranged directly adjacent to each other at an angle to each other.
  • this arrangement without offset of the embossing lines in the longitudinal direction is only possible if the width dimensions of the embossing devices 1.1 allow this.
  • Such a side-by-side arrangement is particularly suitable when the obtuse angle formed by the chamfer surfaces 3a1 and 3a2 is relatively small.
  • the embossing devices 1, 1 arranged in angled planes relative to one another can be arranged offset to one another in the longitudinal direction of the embossing path 1 p.
  • This is the universally applicable design which is always possible when the angle formed by the chamfer surfaces 3a1, 3a2 adjacent one another is not sufficiently obtuse or the embossing means 1,1 are too wide to be disposed immediately adjacent to each other.
  • the embossing means 1,1 are arranged one behind the other in the longitudinal direction of the embossing line, and as close as possible, so that the parallel staggered embossing 1 p follow the embossing means with only a very small clearance in the longitudinal direction of each other.
  • the minimum clearance is on the order of the sum of the two half diameters of the successive terminal backup rollers of the two embossing devices.
  • embossing foil 4 Due to the smallest possible clear distance, a better handling of the embossing foil 4 is achieved with a stamping foil 4 common to both embossing devices 1, so that this embossing foil 4 practically can not warp or wrinkle within the small clear distance and thus the embossing process in each case second embossing device is not adversely affected.
  • the embossing devices assigned in succession to the respective chamfer surfaces thus each form a composite embossing path, which is composed of the embossing paths 1p of the individual embossing devices arranged one behind the other in a line in succession. This allows the increase of the embossing speed.
  • FIG. 4 is an embossing device accordingly FIG. 1 shown, however, equipped with two successively arranged embossing means 1,1 for the embossment of a chamfer surface of the workpiece 3.
  • the embossing device 1,1 as can be seen, constructed identically. They are the same design as the embossing device in FIG. 1 ,
  • the embossing devices 1.1 in FIG. 4 are along the Transport distance 2 offset arranged one behind the other.
  • the device in FIG. 4 also has Folienzu wool- and Folienabwholesome sexualen 5a and 5b, as well as in FIG. 1 are provided.
  • embossing devices 1, 1 each operate with separate embossing foils, ie in their embossing path 1 p each transfer a separate embossing foil assigned to them, separate embossing devices 1 and 2 are required for the embossing devices 1, 1.

Landscapes

  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Claims (17)

  1. Procédé servant à estamper des pièces à usiner (3) guidées le long d'un parcours de transport (2) de préférence stationnaire, par exemple des panneaux, avec un film, de préférence un film stratifié ou un film de transfert, par exemple un film à estamper à chaud,
    dans lequel les pièces à usiner présentent des surfaces, de préférence des surfaces réalisées comme des surfaces chanfreinées (3a) qui s'étendent sur les pièces à usiner le long du parcours de transport (2) et qui sont estampées,
    en utilisant un dispositif d'estampage (1) disposé au niveau du parcours de transport (2), lequel dispositif d'estampage présente au moins deux cylindres de support (1a) et des rouleaux d'impression (1d) disposés entre les cylindres de support (1a) et une bande d'estampage (1c) entraînée de manière rotative autour des cylindres de support (1a) et des rouleaux d'impression (1d), la bande d'estampage étant constituée de silicone, d'élastomère, de caoutchouc et de matière synthétique et formant dans la zone entre les cylindres de support (1a) un parcours d'estampage (1p) sollicité au moyen des rouleaux d'impression (1d), sur lequel parcours a lieu l'estampage de la surface (3a) à estamper de la pièce à usiner, tandis que la surface à estamper passe sur le parcours d'estampage (1p) le long du parcours de transport (2),
    caractérisé en ce
    que la configuration de la surface (3a) à estamper au moins d'une des pièces à usiner guidées le long du parcours de transport (2) et/ou la configuration des surfaces (3a) à estamper d'au moins deux pièces à usiner se suivant le long du parcours de transport (2) sont réalisées de manière variée selon une variation de consigne prédéfinie, concernant la position angulaire et/ou la distance par rapport à la position du parcours de transport (2), et
    que lors du processus d'estampage, les rouleaux d'impression (1d) sont orientés en modifiant la position angulaire et/ou l'éloignement de leur axe de rotation par rapport au parcours de transport (2) et/ou par rapport au plan tangentiel (V) des cylindres de support (1a) en fonction de la variation de la configuration de la surface (3a) à estamper et/ou sont élastiquement déformés sur leur circonférence, en fonction de la variation de la configuration de la surface (3a) à estamper dans le sens d'un asservissement de la surface extérieure des rouleaux d'impression (1d) soumise à l'action de la bande d'estampage (1c).
  2. Procédé selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    que dans le cadre de l'orientation, les rouleaux d'impression sont guidés de telle manière qu'ils dépassent par leur côté extérieur soumis à l'action de la bande d'estampage (1c) le plan tangentiel (V) des cylindres de support (1a).
  3. Procédé selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    que les rouleaux d'impression sont dans le cadre de l'orientation guidés de telle manière que le côté extérieur des rouleaux d'impression (1d), soumis à l'action de la bande d'estampage (1c) s'étend de manière éloignée par rapport au plan tangentiel (V) des cylindres de support (1a) lorsque les rouleaux d'impression (1d) se trouvent dans une position déployée au maximum et/ou dans un état de fonctionnement comprimé au minimum, l'éloignement étant réalisé de telle manière que le tracé de la bande d'estampage (1c) dans la zone entre le premier cylindre de support (1a) et le premier rouleau d'impression (1d) adjacent forme un angle aigu avec le plan tangentiel des cylindres de support (1a), l'angle aigu étant compris de préférence entre 1° et 3°.
  4. Procédé selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    que l'orientation des rouleaux d'impression (1d) a lieu en soumettant directement ou indirectement les axes de palier des rouleaux d'impression à l'action d'un ressort et/ou d'un moteur.
  5. Procédé selon la revendication 4,
    caractérisé en ce
    que le fait de soumettre les rouleaux d'impression à l'action d'un ressort et/ou d'un moteur agit de manière individuelle ou de manière groupée sur les rouleaux d'impression (1d).
  6. Procédé selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    que l'orientation des rouleaux d'impression (1d) a lieu au moyen d'une coulisse avec un guide à coulisse, dans lequel est guidé un coussinet de pivotement (11) du rouleau d'impression (1d).
  7. Procédé selon l'une quelconque des revendications 1 à 6,
    caractérisé en ce
    que seul un rouleau d'impression (1d) est prévu dans le dispositif d'estampage en lieu et place de plusieurs rouleaux d'impression (1d) disposés entre les cylindres de support (1a).
  8. Dispositif d'estampage servant à estamper des pièces à usiner guidées le long d'un parcours de transport (2), par exemple des panneaux, avec un film, de préférence un film stratifié ou un film de transfert, par exemple un film à estamper à chaud, sachant que les pièces à usiner sont estampées sur des surfaces, de préférence sur des surfaces réalisées en tant sur surfaces chanfreinées (3a), lesquelles s'étendent le long du parcours de transport (2), comprenant au moins deux cylindres de support (1a) et des rouleaux d'impression (1d) disposés entre les cylindres de support (1a) et une bande d'estampage (1c) tournant autour des cylindres de support (1a) et des rouleaux d'impression (1d), la bande d'estampage étant constituée de silicone, d'élastomère, de caoutchouc ou de matière synthétique et formant dans la zone entre les cylindres de support (1a) de manière soumise à des rouleaux d'impression (1d) un parcours d'estampage, sur lequel a lieu l'estampage, tandis que la surface (3a) à estamper de la pièce à usiner passe le long du parcours de transport (2) sur le parcours d'estampage,
    caractérisé en ce
    que les rouleaux d'impression (1d) sont logés avec des axes de palier mobiles par rapport au plan tangentiel (V) des cylindres de support (1a), qui sont orientables en fonction de la variation de configuration de la surface (3a) à estamper et/ou présentent une gaine élastiquement déformable de telle manière que le côté extérieur des rouleaux d'impression (1d) est orientable en fonction de la variation de configuration de la surface chanfreinée.
  9. Dispositif d'estampage selon la revendication 8,
    caractérisé en ce
    que les rouleaux d'impression (1d) peuvent être exposés de telle manière que le côté extérieur des rouleaux d'impression (1d), soumis à l'action de la bande d'estampage (1c) est orienté au-dessus du plan tangentiel (V) des cylindres de support et/ou dépasse ce dernier.
  10. Dispositif d'estampage selon la revendication 9,
    caractérisé en ce
    qu'au moins un des rouleaux d'impression (1d) est logé de manière mobile par son axe de rotation de manière parallèle par rapport au plan tangentiel (V) des cylindres de support (1a) et/ou de manière à former un angle avec ledit plan tangentiel.
  11. Dispositif d'estampage selon l'une quelconque des revendications 8 à 10,
    caractérisé en ce
    que les rouleaux d'impression (1d) sont soumis à l'action d'un ressort et/ou d'un moteur de manière individuelle indépendamment les uns des autres ou de manière groupée.
  12. Dispositif d'estampage selon l'une quelconque des revendications 9 à 11,
    caractérisé en ce
    qu'au moins un coussinet de pivotement (11) d'au moins un des rouleaux d'impression (1d) est guidé dans une coulisse moyennant la modification de l'éloignement/ou de la position angulaire de leur axe de rotation par rapport au plan tangentiel (V) des cylindres de support (1a).
  13. Dispositif d'estampage selon la revendication 12,
    caractérisé en ce
    que le coussinet de pivotement (11) est guidé dans le guide à coulisse tout en étant soumis à l'action d'un ressort et/ou d'un moteur.
  14. Dispositif d'estampage selon la revendication 12 ou 13,
    caractérisé en ce
    que la coulisse est disposée de manière non mobile ou de manière mobile par rapport au plan tangentiel (V) des cylindres de support (1a).
  15. Dispositif d'estampage selon l'une quelconque des revendications 12 à 14,
    caractérisé en ce
    que la coulisse est logée dans un palier de pivotement, qui est disposé de manière mobile ou de manière non mobile par rapport au plan tangentiel (V) des cylindres de support.
  16. Dispositif d'estampage selon l'une quelconque des revendications 8 à 15,
    caractérisé en ce
    qu'au moins un des rouleaux d'impression (1d) est guidé au niveau de ses extrémités se faisant face au niveau des coulisses se faisant face.
  17. Dispositif d'estampage selon l'une quelconque des revendications 8 à 16,
    caractérisé en ce
    que seul un rouleau d'impression (1d) est prévu en lieu et place des nombreux rouleaux d'impression (1d) disposés entre les cylindres de support (1a).
EP20090003340 2008-03-08 2009-03-06 Procédé et dispositif destinés à imprégner des pièces à usiner Active EP2098381B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008013279A DE102008013279A1 (de) 2008-03-08 2008-03-08 Verfahren und Vorrichtung zum Beprägen von Werkstücken

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EP2098381A3 EP2098381A3 (fr) 2010-12-01
EP2098381B1 true EP2098381B1 (fr) 2012-06-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014005743U1 (de) 2014-07-09 2014-07-24 Hansgrohe Se Prägeeinrichtung

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DE102009018832A1 (de) * 2009-04-24 2010-10-28 Bulthaup Gmbh & Co. Kg Beschichteter Träger mit Fase-bzw.Radiusprägung und Verfahren zur Herstellung
EP2655082B1 (fr) * 2010-12-22 2015-03-25 The Procter and Gamble Company Procede de transfert d'un film sur une pièce présentant des bords asymétriques
CA2822395C (fr) * 2010-12-22 2015-05-12 The Procter & Gamble Company Procedes destines a des pieces d'estampage ayant des bords asymetriques
US11701683B2 (en) 2010-12-22 2023-07-18 The Procter & Gamble Company Methods for foil stamping parts having asymmetrical edges
US20130153156A1 (en) 2011-12-20 2013-06-20 Norm Henry Tiilikka Foil Stamping Apparatus
DE102012105342A1 (de) * 2012-06-20 2013-12-24 Kba-Notasys Sa Verfahren zum Übertragen eines Dekorabschnitts einer Prägefolie
JP2018094725A (ja) * 2016-12-08 2018-06-21 コニカミノルタ株式会社 箔押し装置及び箔押し制御プログラム並びに箔押し制御方法

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DE2553802A1 (de) * 1975-11-29 1977-06-02 Friz Gmbh Adolf Band-praege-presse
DE4121766A1 (de) 1991-07-01 1993-01-07 Kurz Leonhard Fa Vorrichtung zum uebertragen eines dekors von einer praegefolie auf eine materialbahn
DE19952021C1 (de) * 1999-10-28 2001-05-03 Profilform Moebelteile Gmbh Vorrichtung und Verfahren zur Herstellung von profiliertem Langmaterial mit Oberflächenprägung
DE10216139C1 (de) 2002-04-12 2003-12-11 Kurz Leonhard Fa Prägevorrichtung
DE10352700B3 (de) 2003-11-12 2005-01-20 Leonhard Kurz Gmbh & Co. Kg Prägestation für eine Prägevorrichtung
DE102004028524B4 (de) * 2004-06-11 2007-06-06 Leonhard Kurz Gmbh & Co. Kg Vorrichtung zum Anbringen mindestens eines Flächenabschnitts einer Übertragungslage einer Transferfolie auf einer Materialbahn und deren Verwendung

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Publication number Priority date Publication date Assignee Title
DE202014005743U1 (de) 2014-07-09 2014-07-24 Hansgrohe Se Prägeeinrichtung

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DE102008013279A1 (de) 2009-09-10
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