MXPA99010764A - Method and device for applying a pattern onto a support means - Google Patents

Abstract

Método y dispositivo para la aplicación de un patrón (70) sobre un medio de soporte (2) de un rótulo, empleando una lámina (17) que comprende una capa patrón (18) y una capa soporte (73) con una capa adhesiva (74) que las une, dicho patrón siendo recortado en la capa patrón de la lámina por medio de un dispositivo decontrol, después de lo cual la lámina es colocada en una mesa laminadora (3) en un dispositivo de aplicación (1). De acuerdo con la invención una corredera (21) pasa de manera controlada sobre la lámina colocada en la mesa laminadora, y una película de transferencia autoadherible (19) suministrada por un rollo (20) sobre y alrededor de un rollo prensa (34) soportado por cojinetes rotatorios en un dispositivo de prensado (32), es aplicada bajo presión sobre la lámina. La capa soporte y el exceso del patrón son removidos y las partes del patrón que permanecen se llevan en contacto con el medio de soporte, con la capa de adhesivo de las partes del patrón ahora expuestas. Posteriormente el rollo prensa es nuevamente pasado sobre la película de transferencia, las partes del patrón y el medio de soporte de tal forma que las partes del patrón son transferidas permanentemente a dicho medio de soporte, después de lo cual la película de transferencia es removida del medio de soporte.

Description

METHOD AND DEVICE FOR THE APPLICATION OF A PATTERN ON A SUPPORTING MEDIUM.

The present invention relates to a method for applying a predetermined pattern on a support medium of a sign, whose pattern consists in forming the decoration and / or information of the sign, using a sheet comprising a master layer and a layer support with an adhesive layer that joins them, in which the parts that will be included in said pattern are cut into the standard layer of the sheet by means of a cutting device that is controlled by an electronic control unit that is pre-programmed according to the predetermined pattern, after which, the sheet is placed on a laminating table having a flat resting surface inside an application device with the pattern placed face up.

The invention also relates to a device for applying a predetermined pattern on a support medium of a sign, whose pattern forms the decoration and / or information of the sign, using a sheet comprising a master layer and a support layer with an adhesive layer that joins them, in which the parts that will be included in said pattern are cut in the standard layer of the sheet by means of a cutting device that is REF: 32056 controlled by an electronic control unit that is preprogrammed according to the predetermined pattern, after which, the sheet is placed on a laminating table having a flat resting surface inside an application device with the pattern placed face up.

A traditional sign on a tensioned fabric generally consists of a platform with a pair of support elements attached to said platform, a support means in the form of a flexible stretched fabric extending in a plane between said support elements, and a certain form of medium bra to secure the stretched fabric to the supporting elements. Two portions of parallel edges of the fabric are folded around a band allowing the edges of the fabric to separate to be connected to the supporting elements by means of said fastening means. The stretched fabric, in which it is intended to carry and display information, particularly advertising, by means of one or more self-adhesive portions of the decorative layer of a decorative sheet, also known as decorative film, which is applied to the surface of the The label of the tensioned fabric is appropriately manufactured from some impermeable and durable material, such as plastic films. The length of the decorative film is produced by cutting a desired pattern in the form of information, for example, text, or decoration, for example, graphics, in the upper layer of said decorative sheet consisting of said decorative film with a thin layer of adhesive bonding a second previous layer, usually consisting of waxed paper without the waxed paper underneath being perforated. The trimming is performed by means of a sheet cutter when the desired pattern has been entered or created in an electronic control unit, usually a computer connected to the sheet cutter. The decorative sheet cut in this way is subsequently placed on a table, together with the stretched fabric. A transfer film with a non-permanent layer of self-adhesive adhesive on a surface of the transfer film is applied over the entire surface of the master layer, forming a laminate consisting of the sheet and the transfer film. Said transfer film is generally wound with the coated adhesive layer towards the center of the roll in such a way that the exterior of the roll is always free of adhesive. Then the waxed paper of the sheet is removed, in such a way that the permanent adhesive surface of the master layer is exposed both by the one-time removal of the entire layer of waxed paper, as is the case if the pattern to be applied covers a small surface, or, in the case of large pattern areas, the permanent adhesive surface being gradually exposed while the pattern layer is applied on the surface of the support medium. During the removal of the wax paper the cut-out portions of the master layer forming the desired pattern are manually pressed from said sheet using a hand tool, such that it adheres to the surface of the transfer film. The parts of the master layer that form the desired pattern will then remain on the waxed paper and will be discarded together with the paper. When the waxed paper has been totally or partially removed in the manner described above, a small part of the pattern layer adhered to the transfer film is applied to the surface of the support medium, ie the tensioned fabric, the application being carried out with the help of a spatula, while new strips of adhesive surface are applied, at the same time, smoothing everything with a spatula. When the entire pattern layer has been applied, finally the transfer film is removed from the now decorated tensioned fabric.

If the finished sign consists of several areas of different colors, each color must be cut on a separate sheet and then each sheet must be applied individually, one after the other on the stretched canvas. Up to now, ensuring first and then smoothing all the components in the production label has caused an extremely complicated and laborious process. In addition, the less than stimulating nature of the work has frequently resulted in carelessness and therefore incorrect assembly of the master layer. The spatula can also cause scratches and even tears in the pattern layer or the tensioned fabric.

To facilitate the application, a lubricant, for example, water, is generally used in the support medium, thereby obtaining less friction between the spatula and the transfer film during spatula work. A serious problem that can arise then is the formation of bubbles or blisters between the standard layer and the stretched fabric, caused by water or air trapped between them. To remove these blisters, a hole must be made in the standard layer, allowing the liquid or confined air to be removed manually. Although the application of the pattern is done with the utmost care, some blisters that contain moisture may still remain. When the sign is subsequently hung and heated by the sun, the confined moisture becomes water vapor and the bubbles gradually cause the adhesive agent to detach from its adhesion with the stretched fabric, resulting in an ugly and irregular surface, and a short service life for the sign. In addition, the current method of application requires two people, one to apply the pattern with the spatula while the other holds the blade in place. For a sign with an area of 16 m2 the total time required by the method described is estimated at 8 hours, that is, 4 hours per person for a work team comprising two assemblers.

In another known method for the application of patterned layers on tensioned fabric, an application reel is used, in which the layers are passed together, one over the other through the pressing between two rolls of rubber coated pensas, therefore effecting adhesion between the necessary layers. However, the positioning of the master layer in such a way that the press is always in the correct position in relation to the tensioned fabric during the adhesion process is extremely complicated, since the adhesive layer is exposed. Even a minimal error is enough to cause serious lateral displacements after having passed only a few meters of the material labeled through the press. This happens particularly when more than one section of pattern layer must be placed next to or on top of the other. Therefore, there is no real opportunity to efficiently produce, in a reliable and affordable way, labels on stretched fabrics with a pattern on one side detailed and at the same time of several colors.

The reel application described above can not be used when working with large labels with back covers because it does not allow the application of pattern layers on backshells greater than the thickness of the restriction between the press rolls on the reel.

The thickness of the label is therefore limited to only about 1200 mm, which is the thickness normally used in the rolls. However, currently available sheet cutters can handle a sheet thickness of up to 1372 mm and, because of marketing reasons, it is desirable to manufacture labels on larger stretched fabrics, combining several sections of the standard layer, the reel method It is now obsolete.

The main object of the present invention is to provide an improved method and a device for the application of standard layers on a support medium for a sign, so that the aforementioned problems are totally or almost eliminated.

A second object of the invention is to provide a method and a device for the application of pattern layers on a stretched fabric considerably wider than currently available application rolls, and at the same time allowing the application of several parallel pattern layers of the width common maximum, section by section in one and the same large support medium.

A third object of the invention is to provide a method and a device that makes application of the pattern simpler and faster and requires less work than the current one in the form of time and personnel.

Another object of the invention is to provide a method and a device with which the manual assembly work by using tools such as spatulas, and lubricants, and also that the damages and inconveniences frequently caused by said hand tools and lubricants , are greatly reduced, or even, completely eliminated.

The method according to the invention is characterized in that a slide that extends the design surface in the application device is passed in a controlled manner on the sheet placed on the laminating board, because a self-adhesive transfer film supplied by a roll on and around at least one rotary press roll mounted at its ends by bearings and supported by a press device placed on said slide, is applied by pressing on the sheet to produce a first laminate consisting of a transfer film and a sheet, because said The support layer and the excess of the master layer are removed either together or separately, so that the parts of the pattern remaining in the transfer film, adhered to its self-adhesive surface are subsequently brought into contact with the support medium on the design surface with the adhesive layer of the patterned parts now exposed , and the press roll of the slide is again passed under pressure on a second laminate then formed, consisting of a transfer film, said pattern parts and the support means, so that the parts of the pattern are permanently transferred to said medium. support, because during said application the press roll will lead to the expulsion of the confined air in the second laminate and because the transfer film is removed from the support medium.

The device according to the invention is characterized in that it comprises a slide that extends the design surface, having linearly movable devices comprising control and assembly means by bearings, said devices moving along fixed control sections and supports running parallel to each other. and others along each side length of the laminating table; and a pressing device consisting of at least one rotary press roll mounted on bearings at its ends and operating and control means for moving the press roll between a higher inoperability position and a lower operating position in contact with the table surface and for the control of the pressure of the press roll against the surface of the table.

With the present invention a time saving of up to 75% is achieved compared to previously known methods.

By using the present invention, several parallel patterns can also be applied simply and efficiently on the support medium for taut fabric labels that are considerably larger than the press width of the commonly available press rolls, because in this case the The sheet is placed section by section on the surface of the application table, after which the adjacent sections can be easily adjusted with precision between them before the pattern layers of said sheets are fixed to the tensioned fabric with the help of the film of transfer and said press roll.

Additional advantages obtained from the present invention are that the lubricant, such as water, is no longer necessary between the master layer and the spatula during application, and that the material used is not damaged by scratches from the spatula or by the water remaining between the standard layer and the tensioned fabric. The work can be done more quickly, since one end of the transfer film with the pattern already cut in it can be secured to the support means with the help of a press roll. The support layer is then removed in such a way that the adhesive layer is exposed and the application on the tensioned fabric can be carried out while the slide with the press roll is passed over the table, thus producing a perfect adhesion of the master layer.

The invention will be explained below with reference to the accompanying drawings.

Figure 1 is a schematic perspective view of parts of an application device for use with the method according to the present invention viewed from a side length of the device. of application and, comprising a pressing device and a laminating table.

Figure 2 is a perspective detail of parts of an application device according to Figure 1.

Figure 3 is a perspective detail of an eccentric means included in the application device according to Figure 1.

Figure 4 is a schematic side view of the laminating table according to Figure 1, without the support wheels.

Figure 5 is a schematic top view of parts of the laminating table according to Figure 4 seen from above, illustrating the box construction with the table leaves removed.

Figures 6 and 7 show a side view and a top view of a slide included in the press device shown in Figure 1.

Figure 8 is a schematic front view of parts of the application device according to Figure 1 seen from the front.

Figure 9 is a schematic view in detail of parts of the press device according to Figure 1, viewed laterally, in a first passive position, with a press roll raised out of contact with the laminating board.

Figure 10 is a detailed view of parts of the press device according to Figure 9, seen sideways, in a second active position, with the press roll in the lower part in such a way that a linear pressure is obtained on the rolling table and on the laminate placed on it.

Figure 11 is a schematic detailed view of parts of the application device according to Figure 8, seen sideways, including parts of the eccentric means, a coupling part and a suspension system for the press roll.

Figure 12 is a schematic perspective view of a sheet to be used in the application device according to Figure 1, said sheet consisting of three layers, said sheet also having a cut pattern in the master layer in the form of decoration as of information.

Figure 13 is a schematic perspective view of the sheet according to Figure 12, in which the transfer film has been applied to form a first laminate.

Fig. 14 is a schematic perspective view of the first laminate according to Fig. 13, after said pattern and said transfer film have been applied on the support means to form a second laminate.

Fig. 15 is a schematic perspective view of the second laminate according to Fig. 14, after the transfer film has been removed from said support means.

Figures 1-3 show schematically in perspective parts of an application device 1 according to the invention for the application of a predetermined pattern 70 on the surface carrying the information of a support means 2 of a sign that is intended to be used, example, for advertising purposes, said support means 2 consisting of a tensioned fabric 2, for example, in a taut fabric label.

The application device 1 consists of a laminating table 3 with a construction of a frame constituted by two pairs of long sides 5 and two short sides 6, said construction in frame, see FIGS. 4 and 5, also including a platform 7 in the form frames with supports and struts 9 forming a leg-support 10, which, if necessary can include insurable rolling supports 11 to allow movement of the application device 1, and in addition a horizontal flat frame 12 supported by the leg-support 10 and provided by horizontal supports, struts or the like 9, forming a base for a design surface 13.

In the scheme shown, the design surface 13 comprises one or more rigid plates, for example, plates constructed with double layers of 22 mm, to obtain a rigid table surface 15, and a soft folder 16, conveniently a plastic folder , at the top, completely covering the surface of the table 15. The plastic folder 16 must be carefully adhered to the surface without irregularities on its surface and should have an appropriate surface friction to allow one or more supporting means 2 with patterns 70 applied consisting of one or more sheets 17 described below, or some other layer (s) in the form of sheet or membrane which should be perfectly smoothed while sliding along the surface of the sheet. folder 16, ensuring that the included layers will be completely free of spaces between them such as air bubbles.

Said sheet 17, see figure 17, comprises a first layer, constituting a pattern layer 18, usually of vinyl plastic, in which a pattern 70 in the form of graphic sections such as decorations 71 and / or information 72, is cut out and a second layer, constituting a support layer 73 consisting conveniently of waxed baking paper, between two layers 18, 73 which are joined by applying an adhesive agent or adhesive layer to join them. When the pattern layer 18 has been applied to the tensioned surface 2 under pressure, it will be substantially and permanently adhered.

A transfer film 19, see FIGS. 13-14, whose function is described below, is wound onto an easy-to-use storage roll 20, an adhesive agent or self-adhesive layer 76 having been applied onto the transfer film 19, with said agent being consequently adhesive or self-adhesive layer 76, protected from undesirable exposures thanks to having been rolled up.

The application device 1 also includes a slide 21, which, in the scheme shown, comprises at least two substantially vertical pillars 22 that between the upper ends is conveniently placed a horizontal bar 23 that extends over the entire width of the surface of design 13 of the laminating table 3, and a linearly movable device 25 consisting of control and support parts by means of bearings 26 placed on the lower ends of said pillars 22. The mobile device 25 runs parallel to the surface of the table 15 along fixed control and support sections 27 running parallel with each other along each long side 5 of the laminating table 3.

In the scheme shown, each of the bearing control and bearing parts 26 comprises two pairs of movable bearing support parts 28 positioned at appropriate distances from one another in the mobile device 25, said bearing supports 28 comprising a wheel or bearing of rollers 29 on each side of said section 27, and in addition one or more sling wheels or roller bearings 30 placed against said control section and support 27, therefore, said bearing supports 28 provide the stability requirement for the slider 21 both vertically and transversely to its direction of movement.

As can be seen in Figure 2, two clamping pieces 31 extend vertically from the bar 23 of the slide 21, by parts in which a pressure device 32 is supported by substantially horizontal fasteners 33 extending in a connected manner to each clamping piece 31 Said fasteners 33 may consist, for example, of flat bars welded to their respective clamping pieces 31. The pressure device 32 comprises means for the operation and control of motive force transmitters and a press roll 34 with a flexible surface area, for example. example, rubber. In the diagram shown, said motive power transmission means comprise a mechanical construction for the operation and control of the press roll 34. Alternatively, said power transmission means may comprise pneumatic or hydraulic cylinders., means of transmission by band or cogwheels or any other equipment suitable for this purpose. In the scheme shown, said mechanical construction comprises two suspension systems 36. The press roll 34 is mounted to rotate by means of bearing supports 35 in said two suspension systems 36, placed on each side of the press roll 34. Each of said system of suspension 36 includes a pair of section elements 37, 38, which, as can be seen in Figure 3, consist of two L-shaped sections with a horizontal and a vertical flange pivotally connected to each other at one end of said sections. vertical tabs, and with adjustment and sprung elements 41 positioned at the opposite end of the section elements 37, 38 extending between the horizontal tabs of the sections 37, 38, giving the suspension system 36 a scissor-like construction, with a top sheet 37 and a bottom sheet 38 consisting of said section elements 37, 38. Furthermore, in the diagram shown, each of the bearing supports 35 for the roll or press 34 mentioned above, are secured to the horizontal flange of the respective section element 38 by means of two screws 43.

In the scheme shown, the spring and adjustment elements 41 comprise a helical spring 44 surrounding a threaded center bar 45 extending between said elements and through holes provided in the horizontal flanges of said L-shaped sections 37, 38. An appropriate number of adjusting nuts 46 are provided on the threaded rod 45 allowing the distance between the free ends of the elements 37, 38 to be easily adjusted, and also that the force of the spring 44 be pre-tensioned to a desired value. The pressing, that is to say, the thickness of the gap between the press roll 34 and the design surface 13 of the laminating table 3, can thus be adjusted with the aid of the molding and adjusting means 41 to the thickness of the laminate and in addition the pressure exerted by the press roll 34 on the surface of the table 15, ie a desired pressing pressure can also be adjusted by setting the width of the separation.

To activate the pressure device 32 with the contact pressure preset between the surface of the table 15 and the rubber roll 34, a securing device 47 is provided on each side of the suspension system 36 to be fixed in two positions to ensure the press roll 34 both in the inoperative or passive upper position with the press roll 34 raised out of contact with the surface of the table 15, or in a lower operative or active position, exerting pressure on the table surface 15.

The activation and fixation of the securing device 47 is obtained, see Figures 9-11, by means of an eccentric device 48 consisting of an actuator 49, consisting of a rotating wheel, arranged in each vertical pillar 22 of said slide 21, three elongated portions 50, 51, m 52 arranged parallel to the bar 23, and conveniently in the form of bars or tubes, one of which, the central 50, is eccentric in relation to the other two parts 52, 52, therefore located outside the central bar, said external bars 51, 52 secured in pivot to the horizontal bar 23 by means of a number of fastening means 53, see figure 9. Each of said bars 50, 51, 52"extends over the width of the laminating table 3, one after the other between said vertical pillars 22 and are rigidly joined at the ends where they will therefore be placed close to one another by means of a lever-like construction 54. This pal type construction anca may consist, for example, of a small bar 55, see figure 11, welded to said ends in the manner in which the bars 50, 51 and 50, 52, respectively, appear with the requirement of eccentricity, or said bars 50, 51, 52 could simply be welded together along an appropriate distance from their surface covers. In the scheme shown, each of the securing devices 47 consist of an oblong and flat section 56, which, near its upper end, is pivoted on the small bar 55 mentioned above or, in the last example, of some At the relevant end of the intermediate bar 50, and connected to the suspension system 36 of the press roll 34, in its upper section element 37 mentioned above by means of a second pivot connection 58 placed in the vicinity of the actuator 49, it will then cause that the securing device 47 assumes either its active or passive position in the manner described below in more detail.

To prevent any risk of clogging when the eccentric device 48 is operated, two fin-type roofs with downward direction 59, 60 have been appropriately mounted on the horizontal bar 23, covering the outer bars 51, 52 respectively on each actuator 49. .

Figure 2 also shows a storage roll 61 for the transfer film 19 placed near the said slide 21, extending in its longitudinal direction between the aforementioned fasteners 33, in the vicinity its free outer ends, in which the roll The storage device comprises a bar 62 parallel to the press roll 34 and conveniently held by rotating bearings in each upper section element 37 by means of a support 63 of appropriate type.

The application of the predetermined pad 70 on a support means 2, for example a tensioned fabric 2, starts with a sheet cutter, first cutting the pattern parts 71, 72 that will form a part of said pattern 70, in the pattern layer 18. of the plate 17, with the aid of a cutting device, for example, a knife, controlled by a control unit, for convenience a computer that has been pre-programmed according to the predetermined pattern 70. The program controls the device cutting, according to the customer's specifications, either following the pattern 70 that has been scanned, or one designed directly on the computer. If a high-precision cutter is used, the height of the details can be about 3 mm and larger.

After cutting, the blade of the sheet 17 is placed with the top layer 18 face up on the laminating table 3 in front of the press roll 34, the press roll 34 having been previously moved to its starting position at one of the ends of the sheet. laminating table 3, so that the storage roll 61 in the slide 21 with the transfer film 19, is placed on said sheet of sheet 17. Then, a length of transfer film 19 is pulled from the roll 61 so that it runs on and around the press roll 34, it is driven and glued on the surface of the folder 16 of the laminating table, by means of its adhesive agent 76, just in front of and close to the press roll 34 which is in its passive, raised position. At that time the front edge of the transfer film 19 must be substantially parallel to the axis of rotation of the press roll 34.

One of the actuators 49 of the eccentric device 48 is rotated, such that the press roll 34 is lowered to rest on the laminating table 3, therefore it presses the main end of the transfer film 19. The rotary movement is transmitted to through one of the external bars 51, 52 which is rigidly placed to said actuator 49, and on the intermediate bar 50 through the lever 54 described above, which is rigidly fixed between said bars 50, 51 and 50, 52, respectively. Then the intermediate bar 50 is rotated from its original rest position, see figure 9, from an angle of more than 180 ° to a new position of the press device 32, see figure 10. Because, as described above, the bar intermediate 50 is eccentrically glued to the two outer bars 51, 52, this turning movement will cause its central axis to move towards the interior of the common axis of rotation of the bars 50, 51, 52 in relation to the horizontal bar 23 of the 21. Thanks to the preset pressure of the spring element and adjustment 41 against the laminating table 3, the intermediate bar 50 can achieve a greater turning force acting in a displaced position somewhat on the side of the common axis of rotation between the bar 50 and the bar 23. Therefore, this force will have a sure effect, since it presses the securing devices 47 mounted on the intermediate bar 50 against the horizontal bar 23 of the slide 21, of this man was fixing the securing devices 47 in this position.

When the slide 21 is subsequently passed over the sheet 17, the self-adhesive transfer film 19 should be pulled out of the storage roll 61, onto the press roll 34 and downwards and through the pressing with the surface of the table 15, where adheres to the cut surface of the pattern layer 18. When the transfer film 19 has thus been applied on the entire sheet of the sheet 17, it is cut from the rest of the roll 20 and the transfer film 19 in the roll storage 61. A first laminate 75 is then obtained consisting of the surface 15 of the table, the support layer 73, the pattern layer 18 and the transfer film 19. Then this first laminate 75 is rotated with the main support layer 73, the second being removed in such a way that the cut-out parts consisting of the pouring of the pattern layer 18, which will not adhere to the support means 2, will be removed either together or separately. The pattern layer 18 remaining on the transfer film 19 now has its adhesive layer 74 exposed. The empty support means 2 on which the pattern layer 18 will be applied is placed on the laminating table 3 in front and parallel to the press roll 34. If necessary, it should be secured in this position with strips of adhesive tape. Then, a first narrow edge of the transfer film 19 with the non-permanent self-adhesive layer 76 is placed on the surface 15 of the laminating table 3 and at the same time aligned with the support means 2 and the press roll 34, while the rest of the pattern 18 is kept in contact with the support means 2, for example, by remaining on the horizontal bar 23 of the slide 21. The alignment of the sheet 17 is facilitated by means of reference lines and measurement lines drawn on the surface of the folder 16, the transfer film 19 being transparent, and furthermore, since the non-permanent adhesive layer 76 allows relatively simple correction of the relative positions of the layers 2, 17, 76 19, any error can be remedied before the permanent adhesive layer 74 is applied on the pattern layer 18 in the support means 2. When the pattern layer 18 has been adjusted to its correct position in relation to the support medium 2, the press roll 34 is lowered and passed over the entire length of the pattern layer 18 pressing against the laminating table 3. If it is convenient, the press roll 34 can be passed a number of times on the applied pattern layer 18 in such a way that the layers 2, 74, 18, 76 and 19 adhere to each other and the press roll 34 extracts all the air confined between the layers, so that there are no air bubbles. Finally, the transfer film 19 is removed from the now finished support medium 2, if a single pattern is to be applied. If several pieces of the pattern layer 18 are to be placed together with the part 18 already applied, or if other pattern layers 18 of different colors are to be applied to said support means 2, the procedure is repeated the number of times necessary until that the pattern 70 for the support means, for example, labeled fabric 2 be completed.

In an alternative aspect of the method, if considerable lengths of sheet 17 are to be used, it is preferred to laminate the sheet 17 cut in the transfer film 19 onto the support means 2 on the design surface 13. The pressing 32 with the press roll 34 is placed with the help of the slide 21 in the middle of this first laminate 75, after which the press roll 34 is applied when lowering and contacting the first transfer film 19 of said first laminate 75, thus having a first and second part on each side of the pressing device 32. A first half or part of said sheet 17, for example the left side, is deposited on the bar 23, after which the support layer 73 is removed and trimmed of this half, and its adhesive layer 74 is exposed. Then the press roll 34 is passed with pressure in and towards that half, in such a way that the adhesive layer 74 of the master layer 18 adheres to the support means 2 in a simple and continuous movement, to form a first part of said second laminate 77. This process is then repeated with the other half right or part.

Said support means 2 can be placed on the design surface 13 either before or after the application of the transfer film in the master layer 18. The cut portions of the pattern layer 18 that will not adhere to the support means 2 or the excesses can be removed from the cut sheet of the sheet 17, either just prior to the application of the transfer film 19, which is preferred more, or, if greater stability is required, after the entire pattern layer 18 including the fractions that will have been removed has been applied to the support means 2, scraping them before the adhesive layer 74 has time to become permanent.

It is essential for the method of application that the surface 15 of the laminating table 3 be provided with a material 16 with a suitable surface and material properties in order that its friction, extensibility in the surface plane, and its elasticity perpendicular to said surface flat be the best. The various laminar layers of different types that will be used of the described application device 1, must not adhere by suction with the surface of the table 15 during the travel of the press roll 34, but said laminar layer should be smoothed in a continuous movement of sliding along the surface of the folder 16 in the direction of the movement of the slide 21 and transversely, along the lengths of the sides 5 of the rolling table 3. As mentioned before, the ordinary plastic is suitable for the floor of the folder 16, since this has an adequate friction and, because it is resilient in all the directions mentioned when an external pressure is applied, it has a smoothing effect in all the flexible laminates 2, 17 placed in the surface of the table 15, therefore any wrinkle, fold, blister or bubble, are pressed outwards by the press roll 34. Also as an advantage, the table 15 can be constructed with a slightly curved cross section, convex curve, with a difference in height, for example, about 1.5 mm from the center of the table to its long ends 5.

A curvature of the surface of the table 15 will result in any blister being pressed towards the long ends 5 of the laminating table 3 by passing the press roll, because a lower linear pressure is obtained in the direction of said long sides. .

In the scheme shown, the curvature of the laminating table 3 has been done by means of placing curved elements such as shims or grafts with different thicknesses, for example, between the last lower sheet of the table 3, which together with the folder 16 constitutes the aforementioned design surface 13, and the struts 9 in the frame forming the bottom of said contact surface 13.

To allow the selection of the most suitable folder for a particular occasion, the sheets should be placed relatively loosely in relation to the frame 12 of the laminating table 3 and therefore the sheets are placed along their edges of such so that only vertical and horizontal movements are prevented so that they do not leave the edges of the table 3. This is achieved by placing a steel angle 64 with two tabs perpendicular to the frame 12 of the laminating table 3 using screws or rivets, the first vertical flange extends along the four vertical external sides 5, 6, while the other horizontal flange of steel angle 64 supports the edges of said sheets, whereby, when necessary, they can slide in the direction of the plane of table 3 as mentioned above.

Other materials and the variation of the thickness of the materials can be laminated with one another in the application device 1 described, for example, rubber sheets, rigid plastic sheets, window glass, metal sheets, Plexiglas, etc. they can be used in place of the laminates 17, 19 described above. The application device 1 shown in the scheme, can handle layers of between 0.5 to 40 mm without requiring some adjustment of the minimum or maximum thickness of pressing. Larger pressing thicknesses should be adjusted to suit the laminate being used, by means of the nuts 46 in the spring and adjusting member 41 described above. Therefore, in principle the material of the laminates used can be of any material or thickness as long as they have the necessary properties and the thickness equal or substantially equal to the thickness of the laminate table 3. However, of course the table Laminator 3 can be built to adapt to the requirements of the moment.

The pressing device 32 shown in the scheme consists of only one press roll 34. However, if desired, the number of press rolls 34 can be increased by placing most of the press rolls 34 either in coaxial form one after the other. another, or in parallel with each other through the laminate table 3. A combination of these arrangements also fall within the scope of this invention.

In another aspect of the invention, not shown, one or more covers or sheaths may surround the horizontal bar 23, these being movable along the bar 23. The clamping parts 31 mentioned above for the pressing device 32 are then placed at these covers, allowing the press rolls or rolls 34 to be placed in a desired position through the surface 15 of the laminating table 3, after which said covers are secured to the bar 23 by means of fixing screws placed in the covers, for example, in the form of fin screws, which are then screwed through the material of the covers until they meet the bar 23, ^ in this way securing the covers.

Finally, the transfer film 19 can also vary in the adhesive capacity of its adhesive agent or adhesive layer 76, since the required adhesion varies depending on the size of the pattern portions 71, 72.

The narrow, delicate and detailed parts or parts 71, 72 that have been cut out require a smaller adhesive capacity for the transfer film 19 than the larger details 71, 72. If the adhesion capacity is very high, there is a risk that the individual details 71, 72 must be manually removed from the transfer film 19 for application in the support means 2.

It is noted that in relation to this date, the best method known to the applicant to carry out the aforementioned invention, is that which is clear from the present description of the invention.

Having described the invention as above, the content of the following is claimed as property.

Claims (1)

1. CLAIMS A method for applying a predetermined pattern on a medium is supported on a sign, whose pattern forms a decoration and / or information on the sign, using a sheet consisting of a master layer and a backing layer with an adhesive layer which une, in which the parts that will be included in said pattern are cut into the standard layer of the sheet by means of a cutting device that is controlled by means of an electronic control unit that is pre-programmed according to the pattern default , after which the sheet is placed on a laminating table having a flat design surface in an application device with the face-up patterned layer, characterized in that a slide running through the design surface in the application device is passed from controlled way on the sheet placed on the laminating table, because a self-adhesive transfer film supplied by a roll on and around at least one press roll supported on rotary bearings at its ends and supported by a pressing device placed on said slide, is applied under pressure on the sheet to produce a first laminate consisting of a transfer film d and a sheet, because said support layer and the excess cap are removed either together or separately, and therefore the parts of the pattern which remain in the transfer film, adhered to the self-adhesive surface, are brought into contact with the support means in the design surface with the adhesive layer of the patterned parts now exposed, because the press roll of the slide is again passed with pressure on the second formed sheet, consisting of a transfer film, said parts of the pattern and a support means, in such a way that the parts of the pattern are permanently transferred to said medium support ', because, the transfer film is removed from support medium A method according to claim 1, characterized in that after the first laminate has been formed, but before the support layer and the excess of the master layer are removed, said first laminate is placed on the support means on the design surface, because, with the help of the slide, the pressing device is placed immediately on and. appropriately in the middle of said first laminate, because the press roll of the press device is applied against the transfer film in that first laminate ~ so that it will have a first and second part on each side of the pressing device. because the backing layer is removed after said first part, thus exposing its adhesive layer , said part is applied in the support means under the press roll that is passed with pressure towards and on the outer end of said first part, forming a first part of the second mentioned laminate, because the support layer is subsequently removed from the second part. part of the first laminate, after which this second part is applied on the support means in the manner described above, to form the second part of said second laminate, Because during the application of said first and second parts, respectively, the press roll results in the elimination of air confined in or between the layers, and that the transfer film is removed from the support medium. A method according to any of the preceding claims, characterized in that said support means is placed above the design surface either before or after the application of the transfer film in the master layer A method as claimed in any of the preceding claims, characterized in that the support layer is formed of or has a surface with a low adhesion capacity. A method as claimed in any of the preceding claims, characterized in that said control of the slide is achieved by means of linearly movable devices comprising control and support elements by means of bearings said devices moving along fixed control sections and stand that run parallel to each other along each long side of the laminate table A method as claimed in any of the preceding claims, characterized in that said excess of the master layer is removed before the application of the transfer film on the sheet A device for applying a predetermined pattern of a sign on the support means whose pattern forms the decoration and / or information of the sign, using a sheet comprising a master layer and a support layer with an adhesive layer joining them, wherein the parts that will be included in said pattern are cut out in the standard layer of the sheet by means of a cutting device, which is pre-programmed according to the predetermined pattern, said device comprises a rolling table having a flat design surface in which the sheet is placed with the face-up pattern layer, characterized in that it comprises a slide running through the design surface. having linearly movable devices comprising bearing control and support elements, said devices moving along fixed control and support sections running parallel to each other along each long side of the rolling table, and a press device comprising at least one press roll supported by rotatiobearings at its ends and means of operation and control for moving the press roll (34) between a high, inoperable position and a low operating position, in contact with the surface of the table and for the control of the pressure of the press roll exerted against the surface of the table A device, as claimed in claim 7, characterized in that the operation and control means comprise a mechanical construction for the operation and control of the press roll, said construction constituted by a suspension means placed at each end of the press roll with a securing device provided in each suspension means, whose securing device can be fixed in two positions to secure the press roll in such two positions; and an eccentric device comprising an actuator for securing the securing device in both the active and inactive positions. A device, as claimed in claim 8, characterized in that each of said suspension means comprises a pair of section elements connected to each other in pivot, because a spring and adjustment means are placed to extend between the ends opposite of the section elements. . A device, as claimed in claim 9, characterized in that the spring and adjustment means comprise a helical spring that surrounds a threaded central bar extending between said elements with several adjustment nuts arranged on the threaded bar allowing the distance between the free ends of the elements and in such a way that also the separation between the design surface of the rolling table can be adjusted easily, and also exert a force on the spring (44) to pre-tension it to a desired value. A device, as claimed in any of claims 7-10, characterized in that the slide comprises at least two substantially vertical pillars between the upper ends in which at least one long, stable and suitably horizontal bar is placed, and because one of said linearly movable devices is placed at the lower end of said pillars. A device, as claimed in any of claims 7-11, characterized in that the laminating table comprises a platform in the form of structure with supports and struts forming a support leg that can include insurable rolling supports to allow movement of the device. application, and also a flat and horizontal frame, with horizontal supports, struts or similar, forming a base for a design surface this also comprising one or more rigid plates to produce a rigid surface of the table and a soft folder on top covering that surface of the table A device, as claimed in any of claims 8-12, characterized in that an eccentric element is placed in said slide comprising at least three long elements placed parallel to the slide, one of which is eccentric in relation to the other members, being secured in pivot the other members,, each of the long elements that extend over the width of the laminating table, one after the other and rigidly joined at the ends that will be located close to each other in a lever type construction so that when the actuator is rotated the securing device will assume the above mentioned positions. A device, as claimed in any of claims 7-13, characterized in that a buffer roll of the transfer film is placed in said slider extending in its longitudinal direction, said buffer roll comprising a bar in parallel to the press roll. and appropriately held in rotating bearings in said pairs of section elements by means of a support