EP0164001B1 - Méthode et dispositif d'impression à sec d'un article par l'utilisation d'une feuille à gaufrer à chaud - Google Patents

Méthode et dispositif d'impression à sec d'un article par l'utilisation d'une feuille à gaufrer à chaud Download PDF

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Publication number
EP0164001B1
EP0164001B1 EP85106064A EP85106064A EP0164001B1 EP 0164001 B1 EP0164001 B1 EP 0164001B1 EP 85106064 A EP85106064 A EP 85106064A EP 85106064 A EP85106064 A EP 85106064A EP 0164001 B1 EP0164001 B1 EP 0164001B1
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EP
European Patent Office
Prior art keywords
workpiece
die
heat
embossing
stamp
Prior art date
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Expired - Lifetime
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EP85106064A
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German (de)
English (en)
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EP0164001A2 (fr
EP0164001A3 (en
Inventor
Walter Mathis
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Individual
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Individual
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Priority to AT85106064T priority Critical patent/ATE52456T1/de
Publication of EP0164001A2 publication Critical patent/EP0164001A2/fr
Publication of EP0164001A3 publication Critical patent/EP0164001A3/de
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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"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/08—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces
    • B41F17/14—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B41J3/4073—Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2219/00—Printing presses using a heated printing foil
    • B41P2219/30—Printing dies
    • B41P2219/33—Supports for printing dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2219/00—Printing presses using a heated printing foil
    • B41P2219/40—Material or products to be decorated or printed
    • B41P2219/43—Three-dimensional articles

Definitions

  • the invention relates to a method for dry printing of a workpiece with the features specified in the preamble of claim 1. An apparatus for carrying out the method is shown at the same time.
  • the invention can be both rigid when printing, d. H. Only use flexible bodies in the area of elastic material deformation. With their particular shape, however, flexible bodies, for example blown plastic bottles, particularly for the cosmetics industry, can also be printed with the method according to the invention. It does not matter how the surface of the workpiece to be printed is designed in detail; this surface can in particular be flat, convex-round, convex-oval or also concave.
  • the method shown is also for printing on any other materials, e.g. B. metal, wood, glass, ceramics, etc. in embossing, if a suitable adhesion promoter is used between the surface to be printed and the embossing film.
  • a suitable adhesion promoter can be applied to the workpiece to be printed before or during embossing.
  • the adhesion promoter can also be arranged on the embossing film or can also be applied to the surface of the workpiece to be printed via the intermediate layer of a separate film during embossing.
  • the hot stamping foil printing mentioned here is a dry printing process in which the hot stamping foil is glued or melted onto the surface to be printed.
  • the hot stamping foil itself consists of a carrier tape, a separating layer, expediently a protective lacquer, the actual color layer, which often contains an additional metal layer, and the adhesive or connecting layer to the plastic surface to be printed. All other layers apart from the carrier tape are applied to the surface to be printed during the printing process and, after corresponding cooling, are torn off from the hot stamping film or the carrier tape where they were glued or connected to the surface to be printed.
  • the stamp body which can be compressed within the scope of its elasticity of the silicone material serves to compensate for tolerances on the surface of the workpiece to be printed. It is understood that these tolerances can be better compensated for the thicker the silicone layer.
  • the heat transfer from the metal base body into the silicone pad deteriorates with increasing material thickness. So there are limits.
  • the stamp is mounted on a so-called heating head, in which the necessary heat is often released by means of heating cartridges, which is then transferred by heat conduction via the heating head and the metal base of the stamp by heat conduction. Such a system is very sluggish.
  • the stamp surface of the embossing stamp gets its working temperature after about half an hour, so that the printing process can then be started.
  • the workpiece is moved and unrolled on the die.
  • the length of the embossing stamp corresponds to the processing to be embossed.
  • a considerable contact pressure must be achieved so that the required temperature is reached in the short time available for the rolling process.
  • the method is problematic in that there is neither a controllable dwell time for the application of the heat nor a defined cooling time for the consolidation of the embossed layers.
  • the method has the advantage that a bubble-free connection between the glued-on printing layer and the workpiece is achieved during the unrolling process.
  • deformable hollow bodies for. B. bottles made of polyethylene, as they are used in particular in the cosmetics industry for filling the various liquid or pasty products.
  • the plastic bottle itself must be compliant and compressible in order to be able to remove its contents during use.
  • deformable hollow bodies have very different shapes from a cylindrical cross-section to a flat oval, the surface of the workpiece to be printed cannot be curved in only one direction or plane.
  • Such hollow bodies are printed using a divided form.
  • the lower part of the mold is fixed and forms a bed for receiving about one half of the bottle.
  • the shape includes a movable top so that the bottles can be picked up and fixed between the top and bottom. The runs between the top and bottom of the bottle Hot stamping foil through.
  • the upper part has a recess in which the stamp is arranged and is rigidly connected to the upper part.
  • the upper part of the mold sits on the so-called heating head, in which the heat is released and conducted downwards, namely on the stamping die, but not the upper part of the mold.
  • the upper part of the mold must therefore consist of heat-insulating material.
  • the split shape Since the inflation pressure in the bottle naturally not only affects the stamp, but everywhere, the split shape must withstand this inflation pressure and the shape must also be kept closed, which requires the use of appropriately trained hydraulic presses for the bottom and top part. This inflation pressure also compensates for the tolerances in the surface shape of the hollow bodies that were produced during their production, and depending on the accuracy of the production of the bottles, a reject rate cannot be avoided.
  • the embossing stamp must be produced in a special way in accordance with this manufacturing process, so that the inflated plastic bottle only rests on the raised parts of the stamp body, that is to say on the stamp surface, and also does not contact the other parts of the stamp body due to the inflation pressure. After the application of the pressure and the heat, i.e.
  • the inflation pressure is removed from the interior of the bottle, with a relative movement between the hot surface of the bottle already being disadvantageous with the hot stamping foil and the mold, which can lead to a blurred or otherwise impaired print image if the mold is opened too early.
  • the mold is opened, there can only be a limited cooling time before the foil is already accidentally torn off at certain points.
  • the hot stamping foil is torn off or detached from the now printed surface of the workpiece and moved in cycles for one use.
  • a disadvantage of this method is that the tolerances of the hollow bodies are compensated for by the inflation pressure in order to get the required contact everywhere.
  • the stamp consists of a large aluminum block, on which the printed image corresponding to, for. B. individual letters, further blocks are attached, which consist of solid material, heating cartridges for the release of the required heat are housed in such a basic body.
  • the stamp body attached to the base body is also designed as a solid body and has a stamp surface which produces the desired printed image.
  • An insulating layer and a layer of flexible, resilient material are arranged between the base body and the stamp body and the aluminum block carrying the entire printed image, which is intended to compensate for the tolerances that occur during the production of workpieces to be printed.
  • the stamp body is curved overall and therefore corresponds from the outset to the expected shape of the surface of the workpiece to be printed.
  • WO-A-81/01536 a device for hot stamping is known, in which the workpieces to be printed, for example cylindrical vessels or sleeves, can be hot stamped using the rolling process.
  • the rolling process In particular, a flat coating is intended. Since the contact time is relatively short due to the rolling process, it is necessary to apply considerable pressures and temperatures. A defined cooling time is naturally not available with the method used.
  • the stamp body consists of an elastic metal plate on which a rubber plate facing the workpiece to be printed is arranged, which carries the stamp surface. Rollers are provided both for receiving the wet ink and for transferring the ink to the workpiece to be printed, by means of which the required contact pressure is applied. The stamp body is thus brought into contact with the workpiece by continuous application over the entire stamp surface and the wet printing ink is transferred to the workpiece. The rollers ensure that the stamp body takes on a shape corresponding to the shape of the workpiece in the area of its respective pressure.
  • the invention has for its object to provide a method and a device of the type described above, with which it is possible to print workpieces, in particular.
  • Flexible hollow bodies completely different shapes and / or different locations of the printed image.
  • the stamp is brought into contact with the workpiece by continuous application over the entire stamp surface, and the stamp is brought into a shape corresponding to the shape of the workpiece, at least in the region of the stamp surface.
  • the invention opens up a further method which can be referred to as a combined lifting and unrolling method. While in the prior art the workpiece is moved in the unrolling method and the inflation method, or the stamp is moved in the lifting method, here the workpiece and the stamp is moved relative to one another. The workpiece can be positioned or stabilized so that it should not and cannot perform any movement.
  • the embossing stamp which is always designed as a solid body in the prior art and can only be compressed slightly in the area of its material elasticity, is designed to be flexible when used in the present method due to its shape, in particular its thin-walled design and material. This flexibility is used to form the stamp on the workpiece.
  • the embossing stamp is therefore in continuous contact with the workpiece and takes on its shape during the printing process. This creates the unexpected advantage that the printing process can also be used with a wide variety of workpiece shapes, ie with round, oval, otherwise convex, flat or concave workpieces. It is even possible to print workpieces of different shapes with the same embossing stamp, which of course produces the same print image.
  • the embossing angle can be 180 ° and more during a printing process. This is a special feature of a stroke-like process and opens up the possibility of printing, for example, a round bottle in a single printing process over an angle of 210 °. All-round printing requires two printing processes.
  • the printing press can be designed and dimensioned comparatively simpler because the high inflation pressure is eliminated when printing on flexible hollow bodies.
  • the bottle can still be inflated if it is particularly flexible, ie if and as far as it makes sense for its stability in the fixed position.
  • the inflation pressure is thus reduced from about 20 bar in the prior art to, for example, 2 bar for stabilization purposes.
  • a high embossing pressure is not aimed at with the new method, because a high embossing pressure entails the risk that, for example, the surface to be printed undesiredly deformed if the effect is too long.
  • the new method also has the further advantage that the printing process takes place in a shorter time and thus less heat is transferred. Esp. when printing larger areas, the subsequent cooling process results in fewer sink marks.
  • the method according to the invention also has several advantages with regard to subsequent printing or machining operations on the workpiece.
  • the embossing pressure is selected only as high as is necessary for the deformation or contact of the embossing stamp on the work piece is required. Foreign objects present on the hot stamping foil or fallen onto it can no longer render the stamp unusable.
  • the flexible embossing stamp expediently allows it to be placed on the surface of the workpiece at one point during its molding process 5 and to be put on in a kind of rolling process. Thus the inclusion of air bubbles is between hot stamping foil and the workpiece surface 10 acts counteracted.
  • the hot stamping foil attaches to the workpiece without folding and is connected to the workpiece surface in the print image.
  • the hot stamping 15 is first applied gefolie using a supporting mask to the surface to be printed of the workpiece and fixed there.
  • the stamp is then applied to the already fixed hot stamping film 20 through a cutout in the support mask.
  • the stamp is first lifted off the workpiece and after a cooling time the support mask is lifted off the workpiece.
  • the supply 25 application of the support mask is always useful or even usually required when the print workpiece surface is convex or concave.
  • the support mask can only be missing from simple, well-formed workpieces.
  • the main advantage of using the support mask is that it first applies the hot stamping foil to the surface of the workpiece to be printed and fixes it there.
  • the support mask has a recess 35 or a window, through which the die with its punch body and in particular the stamp face hangs directly to the hot-stamping foil, while the remaining parts of the die can gen to the support mask investor 40th
  • the design of the support mask can also influence the rolling process and the contact of the support surface with the hot stamping foil. Except at the location of its recess or window - - but to prevent the support mask also, the transfer of heat from the remaining parts 45 of the stamping die is used.
  • the embossing foil must not be heated outside the printed image, because this would result in additional unwanted impressions on the workpiece.
  • the support mask by using the support mask, one can take advantage of the fact that the hot stamping film is held in place before, during and after the stamping process relative to the surface of the workpiece 55 to be printed. A defined cooling time after removal of the stamp from the surface to be printed can thus also be observed. The printed image becomes cleaner and clearer. 60
  • the heat is transferred inductively to the stamp.
  • the die is switched on with its metal part in 65 the closed secondary circuit, so that the heat is released immediately where it is needed. It is still only the transfer of heat from the thin metal layer 5 on the thin silicone rubber layer or required. Since this layer can be made very thin, because high contact pressures are no longer required, the heat conduction in the area of the stamp body 10 is considerably improved. But there are also other heat generation and transmission options.
  • the die could with its ram surface or also on its rear side by an infrared radiation listed are heated 15 which could be carried out either continuously or in the print pauses.
  • the workpiece When printing compliant hollow bodies, the workpiece is only a formless necessary for its stabilization pressure 20, that is, without using a mold, inflated. For this it is necessary only so opposite clamp the bottle in the area of the bottle neck and the bottle bottom and 25 carry a targeted introduction of the inflating air into the bottle concern. This inflation pressure has nothing to do with the contact pressure during the printing process in the prior art.
  • the apparatus for performing the procedure proceedings 30 operates pel with a receiving station for the workpiece, a cyclically operating feed device for the hot stamping foil, a relatively movable to the receiving station stamper and a heater for the Crugestem- 35th
  • the receiving station can be designed in a very simple manner, for example in the form of a table for printing on flat workpieces.
  • the embossing of elastically deformable material and is formed as thin walls 40, that it rests upon application to the printable workpiece elastically deform at its surface.
  • the die may consist of a thin bendable sheet metal, the surface of which is formed into 45 of the stamp face.
  • the thin metal sheet it is of course also possible for the thin metal sheet to form, as it were, the base body, on which a likewise very thin stamp body made of plastic, rubber, silicone or the like is applied, which has 5 ⁇ on its side facing away from the base body the stamp surface.
  • the deformability or flexibility of the die must be within the elastic range and can be configured so as to satisfy the individual requirements of the speziel- 55 len use case.
  • a support mask which fixes this and has a recess for the passage of a stamp body of the stamping die carrying the stamping surface.
  • This support mask can be about the same everywhere Have wall thickness. In any case, it also consists of elastic material, which, however, must be heat-insulating. The support mask also assumes or simulates its surface shape when placed on the workpiece. The embossing stamp is then molded onto the support mask during the printing process, the stamp surface passing through the cutout in the support mask and bearing directly on the carrier foil of the hot stamping foil.
  • the support mask can also be designed with different wall thicknesses in order to influence the forming process or the contact process of the stamp surface on the workpiece.
  • the support mask is made of flexible material that can withstand tensile or compressive loads. When printing on concave surfaces, the support mask must be able to withstand pressure because it must press the hot stamping foil against the workpiece in this area.
  • the embossing stamp consists of a stamp body made of elastically resilient material, in particular silicone, which carries the stamp surface and a base body made of elastically bendable metal sheet.
  • the total height of the embossing stamp can therefore be of the order of 2-4 mm.
  • the stamping die with its base made of sheet metal can be switched on in a closed, inductively heated circuit. This represents a very fast-acting and specifically controllable heating option for the embossing stamp, so that its stamp surface can be heated very precisely with the intended temperature.
  • the printing process and the device is very general for printing on a wide variety of materials, such as Glass, metal, cardboard, porcelain, etc. can be used; A corresponding adhesion promoter is required.
  • a workpiece 1 is to be printed with a print image 2.
  • the workpiece 1 has a cylindrical shape, so it consists, for example, of a suitably designed plastic tab.
  • the printed image 2, which is indicated by dash-dotted lines, is formed on the surface of the workpiece 1 and is only indicated here for the sake of clarity at a certain distance from it.
  • the printed image 2 is arranged on the surface 3 of the workpiece 1. It can be seen at this point that the embossing angle 4, over which the printed image 2 extends on the workpiece 1, is greater than 180 °.
  • a hot stamping foil 5 of common construction is used.
  • a support mask 6 is provided, which consists of elastically resilient, that is to say bendable material, which also has a heat-insulating effect.
  • the support mask 6 has a cutout 7 or a window which is made somewhat larger than the printed image 2.
  • the embossing stamp 8 which can be composed of a base body 9 made of a thin, bendable metal sheet and a stamping body 10 made of silicone or another plastic.
  • the stamp body 10 has, on its side facing the workpiece 1, a stamp surface 11 in which those points which are raised determine the lines or shape of the printed image 2.
  • the support mask 7 is first placed around the workpiece 1 in the manner shown, the support mask 7 placing the hot stamping foil 5, which is guided over corresponding rollers, onto the surface 3 of the workpiece 1 put on and put on.
  • the hot stamping foil 5 is thus fixed. It is understood that the workpiece 1 is fixed. If it is a very flexible hollow body in the form of a bottle, it can also be inflated at low pressure for stabilization purposes before the support mask is put on.
  • the stamp 8 is then placed around the workpiece 1 and the support mask 7 held in the manner of a bandage, in such a way that the stamp body 10 can pass through the recess 7 of the support mask 6 and directly on the surface of the hot stamping foil 5, specifically in the area of the carrier tape.
  • This ascent or rise process is expediently carried out and controlled in such a way that a continuous system results, that is to say the contact is initially made at one point, preferably at the lowest point on the circumference, and the stamping die is deformed, as it were, on both sides until it has exactly the shape of the Surface of the workpiece 1 and the support mask 6 has accepted.
  • the printing process can be carried out with a very low contact pressure, so that there is no risk that the flexible workpiece 1 will be squeezed or otherwise damaged.
  • heat is transferred from the stamp 8 to the hot stamping film 5 and also to the surface 2 of the workpiece 1, so that the printed image 2 melts onto the surface 3.
  • This heat is generated, for example, inductively in the stamp 8 itself.
  • the ends of the stamping die 8 are arranged in a closed secondary circuit via guide elements 12 and electrical line 13.
  • the stamp 8 can preferably be heated continuously.
  • the heat is generated in the die 8, while the electrical lines 13 and the guide elements 12 remain cold.
  • the heat generated in the base body 9 is transferred through the heat conduction into the stamp body 10 and emitted via the stamp surface 11.
  • the paths here are extremely short, so that good efficiency can be achieved and the surface temperature of the stamp surface 11 can be regulated within very narrow limits.
  • the embossing stamp 8 is constructed here in exactly the same way as in the exemplary embodiment in FIGS. 1 and 2. It can even be an identical embossing stamp 8, so that the same printed image 2 is also produced on the workpiece 1. It is also possible in this case to work without the use of the support mask 6 if it is ensured that only the stamp surface 11 rests on the surface 3 of the workpiece 1 via the hot stamping foil 5. This can be done by specifically controlling the lifting process of the die 9 according to the arrow 14. It can be seen from FIG. 4 that the support mask 6 can also be designed with different wall thicknesses in order to influence the rolling process of the stamping die 8. This rolling process also begins here in the middle of the stamp surface 11 and continues on both sides, the base body 9 ultimately coming to rest on the support mask 6 and being held there.
  • FIG. 5 and 6 show an embodiment for printing a workpiece 1 with a concave surface 3 on which the printed image 2 is to be applied. It can be seen here that the support mask 6 (FIG. 6) must be able to withstand pressure because it presses the hot stamping foil 5 onto the concave surface 3 of the workpiece 1. The same applies to the embossing stamp 8. Otherwise, the structure and mode of operation are similar or identical.
  • embossing stamp 8 can be used for printing on the variously shaped surfaces 3 of the workpieces 1.
  • a change in the pressure level that is, if the printed image 2 is to be applied higher or lower on a bottle, is also readily possible.
  • a new embossing stamp 8 nor a new support mask 6 have to be made for this. Rather, the relative position to the workpiece 1 is simply changed or set.
  • FIG. 7 shows a top view of the support mask 6 in the left part, while in the right part of the illustration the embossing stamp 8 located below it can be seen.
  • the support mask 6 can for example consist of asbestos or be coated with it.
  • the base body 9 of the stamping die 8 can be provided with incisions 15 which are arranged outside the stamping body 10 in such a way that the stamping die 8 is divided into three parts in the edge region.
  • the tongues 16 thus separated serve to influence the molding or application process of the die 8 on the surface 3 of the workpiece and are not placed around the workpiece 1. Only the central part 17 is thus gripped by the guide elements 12 and placed around the workpiece 1.
  • the stamp surface 11 specifically comes into contact with the workpiece 1 or the hot stamping film 5 in its center or in accordance with the axis of symmetry, while the other areas are arranged in a symmetrical arrangement.
  • This particular shape of the stamp 8 is thus important for this contact or molding process of the stamp 8 on the workpiece 1, with regard to the time course.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Printing Methods (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Duplication Or Marking (AREA)
  • Decoration By Transfer Pictures (AREA)
  • Drying Of Solid Materials (AREA)
  • Labeling Devices (AREA)

Claims (9)

1. Méthode d'impression à sec d'un article (1), en particulier d'un corps creux souple, de préférence en plastique ou avec un revêtement plastique appliqué sur sa surface, mais aussi en métal, en verre, en céramique ou similaires, en utilisant une feuille à gaufrer à chaud (5) et un tampon à gaufrer (8) en utilisant la chaleur, la pression et le temps, dans laquelle l'article (1) et le tampon à gaufrer (8) sont mis en mouvement relatif l'un vers l'autre, maintenus en contact avec serrage de la feuille à gaufrer à chaud (5) interposée, de la chaleur leur étant transmise et (ces éléments) étant à nouveau mis en mouvement en les éloignant, tandis que la feuille à gaufrer à chaud (5) est collée sur l'article (1) en conformité avec le tampon à gaufrer (8) et est détachée de l'article (1) après une période de refroidissement, à l'exception de la vignette (2), caractérisée en ce que le tampon à gaufrer (8) est amené au contact de l'article (1) par appui continu sur toute sa surface de tampon (11) et en ce que le tampon à gaufrer (8) est amené en une conformation correspondant à la conformation de l'article (1), tout au moins dans la région de la surface de tampon (11
2. Méthode selon la revendication 1, caractérisée en ce qu'en premier lieu la feuille à gaufrer à chaud (5) est appliquée et fixée sur la surface (3) qu'il s'agit d'imprimer sur l'article (1), en utilisant un masque d'appui (6), en ce que le corps (10) du tampon avec la surface de tampon (11) du tampon à gaufrer (8) est appliqué sur la feuille à gaufrer à chaud (5) déjà fixée, à travers un évidement (7) dans le masque d'appui (6), et en ce qu'après le transfert de chaleur du tampon à gaufrer (8) vers la feuille à gaufrer à chaud (5) et la surface (3) de l'article (1), on écarte de la pièce (1), d'abord le tampon à gaufrer (8), et après une période de refroidissement, le masque d'appui (6).
3. Méthode selon les revendications 1 et 2, caractérisée en ce que, pour l'impression de corps creux souples, l'article (1) est gonflé seulement à la pression nécessaire pour sa stabilisation, sans déformation.
4. Dispositif de mise en oeuvre de la méthode selon les revendications 1 à 3, avec une station recevant l'article (1 ), un dispositif d'avance cadencée pour la feuille à gaufrer à chaud, avec un tampon à gaufrer (8) mobile par rapport à ladite station, avec un dispositif de chauffage pour le tampon à gaufrer (8), caractérisé en ce que le poinçon à gaufrer (8) est en matière déformable élastiquement et si mince qu'en étant appliqué sur l'article à imprimer (1), il s'applique sur la surface (3) de celui-ci en se déformant élastiquement.
5. Dispositif selon la revendication 4, caractérisé en ce qu'il est prévu, entre le tampon à gaufrer (8) et la feuille à gaufrer à chaud (5), un masque d'appui (6) fixant celle-ci.
6. Dispositif selon la revendication 5, caractérisé en ce que le masque d'appui (6) est en matière flexible, pouvant être soumise à des contraintes de traction ou de compression.
7. Dispositif selon la revendication 4, caractérisé en ce que le tampon à gaufrer (8) est constitué d'un corps de tampon (10) portant la surface de tampon (11), ce corps étant fait d'un matériau flexible élastiquement et résistant à la chaleur, en particulier de silicone, et d'un corps de base (9) en tôle métallique flexible élastiquement.
8. Dispositif selon les revendication 4 à 7, caractérisé en ce que le tampon à gaufrer (8) est branché avec son corps de base (9) dans un circuit électrique fermé, chauffé par induction.
9. Dispositif selon les revendications 4 à 6, caractérisé en ce qu'il est prévu pour le masque d'appui (6) un dispositif d'entraînement distinct du dispositif d'entraînement du tampon à gaufrer (8).
EP85106064A 1984-06-06 1985-05-17 Méthode et dispositif d'impression à sec d'un article par l'utilisation d'une feuille à gaufrer à chaud Expired - Lifetime EP0164001B1 (fr)

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Application Number Priority Date Filing Date Title
AT85106064T ATE52456T1 (de) 1984-06-06 1985-05-17 Verfahren und vorrichtung zum trockenen bedrucken eines werkstueckes unter verwendung einer heisspraegefolie.

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Application Number Priority Date Filing Date Title
DE3421029 1984-06-06
DE3421029A DE3421029C2 (de) 1984-06-06 1984-06-06 Verfahren und Vorrichtung zum trockenen Bedrucken eines Werkstückes unter Verwendung einer Heißprägefolie

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EP0164001A2 EP0164001A2 (fr) 1985-12-11
EP0164001A3 EP0164001A3 (en) 1987-10-07
EP0164001B1 true EP0164001B1 (fr) 1990-05-09

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US (1) US4658721A (fr)
EP (1) EP0164001B1 (fr)
JP (1) JPS6116857A (fr)
AT (1) ATE52456T1 (fr)
CA (1) CA1241566A (fr)
DE (2) DE3421029C2 (fr)
ZA (1) ZA854219B (fr)

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DE10028199C1 (de) * 2000-06-09 2002-06-13 Henkel Dorus Gmbh & Co Kg Andruckelement für eine Kantenanleimmaschine und Verfahren zum Anleimen
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US9272567B2 (en) 2011-12-19 2016-03-01 Fujifilm North America Corporation Method and apparatus for transferring images onto a curved surface
DE102012009773A1 (de) * 2012-05-16 2013-11-21 Heinz-Glas Group Holding HGGH GmbH & Co. KGaA Verfahren und Vorrichtung zum Bedrucken eines Werkstücks aus Glas mit einer Heißprägefolie unter Verwendung eines Prägestempels
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CN113725526B (zh) * 2021-08-26 2023-05-09 江苏兴锻智能装备科技有限公司 一种新能源电动车电池外壳生产线

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Also Published As

Publication number Publication date
DE3421029A1 (de) 1985-12-12
DE3577524D1 (de) 1990-06-13
JPS6116857A (ja) 1986-01-24
JPH0310501B2 (fr) 1991-02-13
ZA854219B (en) 1986-02-26
US4658721A (en) 1987-04-21
ATE52456T1 (de) 1990-05-15
EP0164001A2 (fr) 1985-12-11
DE3421029C2 (de) 1986-04-24
CA1241566A (fr) 1988-09-06
EP0164001A3 (en) 1987-10-07

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