DE19952021C1 - Embossing station for longitudinal workpiece materials has a rotating embossing roller composed of structured segments pressed against the workpiece surface in a rolling action under pressure - Google Patents

Abstract

An assembly to produce embossed longitudinal materials, comprises an embossing station (2) with at least one rotating embosser (7). Its outer side (8) is pressed against a profiled longitudinal workpiece (5) in a rolling action. The embossing pattern is in negative relief, so that the contour of the outer side of the embosser matches the profile contour (6) of the profiled material. An assembly to produce longitudinal materials with surface embossing, comprises an embossing station (2) with at least one rotating embosser (7). Its outer side (8) is pressed against a profiled longitudinal workpiece (5) in a rolling action. The embossing pattern is in negative relief, so that the contour of the outer side of the embosser matches the profile contour (6) of the already profiled material. The embossing occurs against the sections of the material with a profile contour.

Description

The invention relates to a device and a method for producing profiled Long material with surface embossing.

Examples of such profiled long material are elongated strips, beams, panels, bars and the like, which, among other things, as floor, ceiling or wall end strips, as Cornice moldings or as covers can be used in many ways. A particular area of application is Interior design including furniture construction.

There is a large one for hiding or sealing joints, corners and edges Number of long materials, each with a different shape, not exclusively straight Show profile contour. The long materials are cut to size as required cut. Point for the attachment of long pieces of material to a joint, corner or edge the profiles on trained profile contour sections, while others Profile contour sections essentially serve for veneering.

From a design point of view, there is not only a great need for different, Profile shapes adapted to the installation conditions, but also to a suitable one Surface. The appearance of a surface is not only determined by the choice of colors determined, but also by the fine structuring of the surface, d. H. the  Surface relief. Profiles are often profiled for reasons of simpler production Long materials made of materials other than the components to be veneered, the Long material pieces used as panels, however, give the impression of the material of the to awaken veneering components. An adjustment solely in terms of color is for this As is well known, it is not sufficient because the surface finishes for the impression of the material is a decisive factor.

For example, it is sufficient to convey the impression that an object is made of real wood or a real wood veneer, not just to reproduce the color and grain. Rather, for a wood impression is the replica of a wooden surface with their Bumps, pores and grooves are required.

In order to obtain appropriate surface designs, profiled long material was previously used already coated, foil-like surface materials. The tight casing of a profiled long material requires firm adhesion of the surface material to the profiled long material for later loosening especially in strongly curved fillets to avoid. The pressure forces required for this result in the usual However, surface materials very often lead to surface smoothing and thus degradation the original surface fineness of the surface material, so that the originally existing impression of the material is changed.

In addition to the replication of materials, there is also an interest in a diverse Surface design potential, for example on a panel that is partially with a raised and / or embossed lettering is provided.

The invention is therefore based on the object of a device and a method for Manufacture of profiled long material with surface embossing to specify the one diverse and high-quality surface finishes, especially on profiled long material allowed.

This object is achieved with a device of the type mentioned, the one Has embossing device with at least one revolving embossing member, which on its Outside, for embossing in a printing system with an already profiled long material brought and rolled on the long material, has an embossed pattern negative relief, the contour of the outside of the embossing element in the contact area against the long material the profile contour of the already profiled long material or sections of the profile contour of the Long material is reproduced.  

This task is further achieved by a process for the production of profiled long material solved with surface embossing, in which first the shaping of the profile of the long material and the surface is then embossed on the long material, whereby the embossing with passing on at least one with an embossing pattern negative relief The embossing element provided on the surface of the long material takes place in its profile contour the profile contour of the long material is reshaped.

With the device according to the invention such as the method according to the invention, a large number of different surface finishes with an original profile material high quality. The risk of cancellation or modification of the intended In contrast to the conventional one described at the beginning, the surface shape exists Production method no longer. As the manufacture of the surface finishes immediately the long material, the range of materials can also be expanded considerably, since also a bond to surface materials that have already been embossed, such as mentioned slides no longer exists. The embossing can also be positioned very precisely, which is particularly important when applying lettering.

According to an advantageous embodiment of the device according to the invention, the embossing element designed as a rotating roller, the negative relief pattern on its outer circumference has, wherein the axis of rotation of the rotating roller substantially transverse to a Longitudinal direction of the long material to be processed in the embossing device is arranged. As a result, a wide range can be obtained in a technically simple manner and in a small space Realize surface structures.

The rotating roller is preferably formed from roller segments which run in the direction of the Axis of rotation of the rotating roller are connected in series, the profile contours of the Outer circumference of the individual segments of the profile contour of the long material are reproduced. This enables a good profile adjustment of the embossing member, so that at all Make the profile contour good embossing behavior is achieved. With complex profile contours the axes of rotation of the individual segments can also be inclined towards each other. The Embossed sections of the individual segments preferably adjoin one another directly on.

If necessary, two or more embossing devices in the longitudinal direction of the Long material connected in series to cover all required areas of a profile contour to be embossed.  

According to a further advantageous embodiment of the device according to the invention Embossing organ a revolving band, which on its against the long material piece too pressing outer circumference has the embossed pattern negative relief. As in the case of Embossing roller can be used to produce a wide range of embossing patterns. The circulating band also enables a larger repeat, d. H. longer distances up to one Pattern repetition, so that this is especially for the application of lettering or whole texts is suitable.

The circulating belt is preferably designed to be flexible. The embossing device also has a pressure roller device, which in the contact area of the circulating belt against the Long material lies against the inside of the circulating belt, the belt against the areas to be profiled of the profile contour of the long material is pressed. this makes possible the embossing, including in this application both relief surveys and Relief depressions can be understood, even with more complex profile contours in one Work step so that the expenditure on production resources remains low.

To optimize the application of the tape against the long material to be embossed is preferred the profile contour of the outer circumference of the pressure roller device, including the Replica thickness of the circumferential band of the profile contour of the long material piece. The Pinch roller contour is thus attributed to the wall thickness of the belt Profile contour set.

In a further embodiment, the pressure roller device consists of two or more Pinch rollers formed in the direction of the axis of rotation of the pinch roller device are connected in series, resulting in a cheaper production of Pinch roller device with more complex profile contours results. In addition, at appropriate profile design individual pressure rollers with different long materials and can therefore be used several times.

For rapid conversion of the device according to the invention, for example in the event of a change of the embossing pattern or the profile contour of the long material to be embossed preferably the embossing element is designed as an exchange unit, the other for another Embossing organ exchange unit with a different profile and / or another Embossed pattern negative relief is interchangeable as a unit.

In order to move the long material past the embossing device, either Long material are moved past this or the embossing device on the Long material are passed. There is also a coupling of both movement regimes  possible. For a safe and good engagement of the embossing element in the surface of the Long material, it is advantageous if a drive device for driving the embossing element in whose direction of rotation is provided. The embossing device thus takes over at least one Part of the drive power that is required to pass the long stock through the embossing device to push through. Because the force transmission is at the point of the feed resistance takes place, shear and buckling forces in the long material towards the embossing device be avoided.

In an alternative embodiment there is a feed device for driving the long material intended. This is preferably also the feed device of an upstream one Profile manufacturing device or a profile processing device, whereby the machine Effort is reduced.

In a further, advantageous embodiment, a pressure force generating device is provided on the axis of rotation of the rotating roller or the pressure roller device attacks, such that the embossing element is pressed in the direction of the profile contour of the long material becomes. This enables a constant reference position of the long material to one Machine structure of the device and thus a simple position coordination with others Processing units so that the embossing forces exerted on the long material are not or hardly transferred to other processing units and not how they work be affected.

The embossing device of a profile production device is preferably in series downstream, so that rapid production is possible in one pass, d. H. at the The finished product is present at the end of the device according to the invention.

In a further advantageous embodiment, the embossing device is a Coating device for surface coating of the already profiled long material upstream. This allows a wide range of materials for both the long material and also the surface can be used. In the case of a coating, the long material in the Principle consist of any material, such as wood, plastic or Metal. Wood materials are among other things also medium density fiber material (MDF) or high density fiber material (HDF). Materials are mainly used for surface finishing Plastic base such as resins and the like are used. Likewise, finish foils can be on Paper base, polyester film, polyester laminate or continuous melamine laminate (CPL) be used.  

In a further advantageous embodiment, the coating device is a Painting unit for applying a paint to the already profiled long material. Farther the coating device has a drying device for drying the applied paint. This is also an embossing of painted surfaces possible, the embossing can be done especially in the lacquer layer. To avoid before Lacquer cracks are embossed only in a dried state.

In a further embodiment of the invention, the embossing device is advantageously a Aftertreatment device for fixing the embossing pattern to the long material piece subordinate, in the online a fixation of the embossing, for example when embossing one Plastic surface, can be done. For example, radiation sources or other thermal or chemical treatment devices are used. In the Aftertreatment device can e.g. B. a condensation, polymerization, polycondensation, etc. to be brought to a conclusion.

To accelerate the hardening of a paint, the Aftertreatment device preferably a final drying device for drying the applied and embossed paint.

The invention is illustrated below with reference to the drawing Exemplary embodiments explained in more detail.

Fig. 1 shows a partial view of a device for producing profiled long material with surface embossing according to a first embodiment, in which the embossing device has an embossing roller as the embossing member;

Fig. 2 shows a schematic side view of the embossing roller of Fig. 1;

Fig. 3 shows a partial view of a device for producing profiled long material with surface embossing according to a second embodiment, in which the embossing device has a circumferential band as the embossing member;

Fig. 4 shows a schematic side view of the embossing device of Fig. 3;

FIG. 5 shows a schematic representation of a device for producing profiled long material with surface embossing, which applies to both the first and the second exemplary embodiment.

FIG. 5 shows the basic structure of an apparatus for preparing profiled long material with the surface embossing detail hereinafter described embodiments.

The device includes a Roll forming apparatus 1 and an embossing device 2, which are connected in series, so that a running out from the profile production apparatus 1 long profiled material 5 then online enters the embosser. 2 In principle, however, it is also possible to design the embossing device 2 separately as a unit that is independent of the profile production device 1 , in which case, however, intermediate storage of the profiled long material pieces or suitable transport devices must be provided.

In the profile production device 1 , the profile of the long material 5 is formed , which continuously shows a constant cross-section with a defined outer contour or profile contour. Depending on the material, the profile production device 1 can cut the profile from a raw material or can also produce it using primary molding technology, for example by extrusion in the case of plastic or wood fiber material.

In FIG. 5, the embossing device 2 is preceded by a coating device 3 for the surface coating of the already profiled long material 5 . The dashed representation indicates the optional addition, an arrangement corresponding to the graphic representation in FIG. 5 not being mandatory. The coating device 3 is also expediently in line with the profile production device 1 and the embossing device 2 .

The manufacturing process can be completed after the embossing device 2 , so that after this the finished end product is available. However, the embossing device 2 can be followed by a post-treatment device 4 for fixing the embossing pattern to the long material piece, which is positioned online just like the coating device 3 . In the aftertreatment device 4 , further processing steps such as a color-contrasting surface treatment can also take place, for example in order to achieve special effects such as that of a limed surface.

In one embodiment, the coating device 3 comprises a painting unit for applying a paint, e.g. B. on the basis of melamine, on an already profiled long material and a subsequent drying device for drying the applied paint. However, drying has only progressed so far when entering the embossing device 2 that no cracks occur on the lacquer layer during subsequent embossing. For final drying, the embossing step is followed by a final drying step to dry the applied and embossed lacquer as a post-treatment step.

To produce a profiled long material 5 with surface embossing, the profile of the long material is first formed in the profile manufacturing device 1 . Only then, if appropriate after a surface pretreatment step or a coating in the embossing device 2 , is the outer or surface 6 of the long material 5 embossed. The embossing is carried out by rolling at least one embossing member 7 provided with an embossing pattern negative relief on the surface 6 of the long material 5 . The pressure forces are set depending on the materials and the embossing pattern.

In order to emboss a profile contour that is not exclusively straight, the outside 8 of the embossing member 7 is shaped in the contact area against the long material 5 of the profile contour of the already profiled long material 5 .

The embodiment shown in FIGS . 1 and 2 shows an embossing device 2 , in which the embossing member 7 is designed as a rotating roller 9 , which here is composed of individual roller segments 9 a, b, c, d. The rotating roller 9 has on its outer circumference 8 the embossed pattern negative relief, which is reversed in relation to the relief elevations and relief recesses in relation to the positive pattern to be reproduced on the outside 6 of the long material 5 . The roller 9 can be designed as a metal roller or plastic roller with a surface structure. A roller made of ceramic material can also be used, which has the advantage of a particularly high wear resistance.

As can be seen from FIG. 1, in the exemplary embodiment shown, the axis of rotation A of the rotating roller 9 is arranged essentially transversely to a longitudinal direction V of the long material piece to be processed in the embossing device 2 . The rotating roller rotates when the long material is fed in the longitudinal direction in the direction of arrow R in FIG. 2, so that the embossing member 7 , ie the roller 9, rolls on the long material 5 .

Furthermore, the Fig. 1 is a segmentation of the roller 9 into individual roll segments 9, b a, c, refer d, the outer periphery provided at its with a portion of the embossed pattern a respective sections of the profile contour of the elongated material 5 correspond, so that a continuous System of the segmented roller 9 against the long material results. In the exemplary embodiment, the roller segments 9 a, b, c, d are mounted on a common shaft and are connected one behind the other in the direction of the axis of rotation of the rotating roller 9 .

In the case of complex profile contours, two or more rotating rollers 9 can also be provided, which sit one behind the other in the direction of the longitudinal axis V of the long material 5 , for example. The respective axis of rotation A can be inclined with respect to the embodiment shown in FIG. 1 in order to apply a high embossing force F to strongly curved or inclined sections of the profile contour. For processing side surfaces, two rollers arranged laterally of the long material can also be provided, the pressure direction of which is directed towards one another.

In addition to the possibility of a continuous profile with several rollers of a complex profile contour To impart surface embossing, several in the longitudinal direction V cascaded rollers are also used to create intricate embossing patterns to manufacture. Likewise, a larger number of pattern variations can be created in a simple manner can be produced without the need for a separate roller for each pattern.

The shaft, not shown in FIG. 1, for supporting the roller segments 9 a, b, c, d is supported on a machine frame 10 by means of pressure devices 11 . The machine frame 10 also carries a pressure die 13 , which is designed to match the rear side of the long material 5 , which is not to be embossed. To emboss different profiles, the pressure die 13 is interchangeably connected to the machine frame 10 via fastening means 14 . The pressure die 13 assumes the function of positioning the long material 5 during embossing, so that no significant positional shift of the long material 5 and thus impairment of upstream or downstream processing devices 1 , 3 , 4 can occur.

To absorb the embossing forces F, the pressure die 13 is preferably made of metal as a rigid block body. On the other hand, in order to enable a good implementation by the embossing point, the long material 5 is supported by guide rollers 15 which lie in corresponding recesses in the pressure die 13 .

In the second embodiment according to FIGS . 3 and 4, the embossing member 7 is a circumferential band 20 which has the embossed pattern negative relief on its outer circumference 21 to be pressed against the long material 5 '. The long material 5 'of the second embodiment differs from the long material 5 of the first embodiment. However, many profile contours can be produced with an arrangement according to the first as well as according to the second embodiment.

The circumferential band 20 is flexible in order to enable good contact with the long material 5 'and is made, for example, of plastic or a thin-walled metal band.

Furthermore, a pressure roller device 22 is provided, which rests in the contact area of the circulating band 20 against the long material 5 'against the inside of the circulating band 20 in order to press the band 20 firmly against the regions of the profile contour of the long material 5 ' to be embossed. The profile contour of the outer circumference 24 of the pressure roller device 22 corresponds to the profile contour of the long material 5 ', including the thickness of the circumferential band 20 .

As in the case of the segmented roller 9 , the pressure roller device 22 is formed from two or more, here four pressure rollers 22 a, b, c, d, which are closely connected in the direction of the axis of rotation A of the pressure roller device 22 . By using the flexible band 20 , slight gaps for the embossing along a continuous contour line are unproblematic. The application of the pressing force again takes place via a pressing force generating device, which acts on a shaft on which in this case the individual pressing rollers 22 a, b, c, d are lined up. As can be seen in FIG. 4, the pressing force F can be conducted via a frame 25 , which has both the pressing roller device 22 and at least one further deflecting roller 26 for the belt 20, as well as suitable tensioning devices for the belt 20 , which are shown in FIG. 4 are not shown for reasons of clarity.

The long material 5 'is stored in a manner corresponding to the first exemplary embodiment via an interchangeable contact matrix body 23 which is connected to the machine frame 10 by means of fastening means 14 and which here is again shaped in accordance with the profile rear side.

In both exemplary embodiments, the embossing element 7 is designed as an exchange unit. As a result, this can easily be exchanged for another embossing organ exchange unit with a different profile and / or a different embossing pattern negative relief as a unit.

In order to avoid the occurrence of thrust and buckling forces in front of the embossing device 2 , the embossing member 7 is in each case driven by a drive device in the exemplary embodiments, so as to bring about a relative movement between the embossing member 7 and the long material. In a compact device, the long material 5 , 5 'is conveyed past the stationary embossing device 2 in its longitudinal direction V.

If the embossing device 2 is connected to further processing devices 1 , 3 , 4 , however, it may be expedient to use their feed devices for conveying past the embossing device. This can also be done in addition to a drive of the embossing element 7 . If several embossing elements 7 are connected in series, whereby embossing rollers can be combined with belt devices, it is best to drive the last one, ie the embossing element 7 that is most advanced in the direction of the process end, so that if necessary, an additional drive can be dispensed with on the upstream embossing elements.

With the described devices high-quality, decorative embossing Surface structures such as B. wood embossed structures, laid paper, pearl and other Surface structures both directly on the material of the long material and on produce a layer applied to this.

Claims (17)

1. Device for producing profiled long material with surface embossing, with an embossing device ( 2 ) with at least one circumferential embossing member ( 7 ) on its outside ( 8 , 21 ), which is used for embossing in a printing system with an already profiled long material ( 5 , 5 ') and rolled on the long material, has an embossed pattern negative relief, the contour of the outside ( 8 , 21 ) of the embossing member ( 7 ) in the contact area against the long material of the profile contour ( 6 , 6 ') of the already profiled long material or sections the profile contour of the long material is simulated. 2. Device for the production of profiled long material with surface embossing according to claim 1, characterized in that the embossing member ( 7 ) is designed as a rotating roller ( 9 ) which has the embossing pattern negative relief on its outer circumference ( 8 ), the axis of rotation (A ) of the rotating roller ( 9 ) is arranged substantially transversely to a longitudinal direction (V) of the long material ( 5 ) to be processed in the embossing device ( 2 ). 3. Device for the production of profiled long material with surface embossing according to claim 2, characterized in that the rotating roller ( 9 ) from roller segments ( 9 a, b, c, d) is formed in the direction of the axis of rotation (A) of the rotating roller ( 9 ) are connected in series, the profile contours of the outer circumference of the individual segments ( 9 a, b, c, d) sections of the profile contour ( 6 ) of the long material ( 5 ) being simulated. 4. Device for the production of profiled long material with surface embossing according to claim 1, characterized in that the embossing member ( 7 ) is a circumferential band ( 20 ) which, on its outer circumference ( 21 ') to be pressed against the long material ( 5 '), the embossed pattern Has negative relief. 5. Device for producing profiled long material with surface embossing according to claim 4, characterized in that the circumferential band ( 20 ) is flexible, and the embossing device ( 2 ) has a pressure roller device ( 22 ) which in the contact area of the circumferential band ( 20 ) bears against the long material ( 5 ') against the inside of the circulating band ( 20 ) in such a way that the circulating band ( 20 ) is pressed against the areas of the profile contour of the long material ( 5 ') to be profiled. 6. Device for producing profiled long material with surface embossing according to claim 4 or 5, characterized in that the profile contour of the outer periphery ( 24 ) of the pressure roller device ( 22 ), including the thickness of the circumferential band ( 20 ) of the profile contour of the long material ( 5 ') is reproduced. 7. A device for producing profiled long material with surface embossing according to claim 5 or 6, characterized in that the pressure roller device ( 22 ) from two or more pressure rollers ( 22 a, b, c, d) is formed, which in the direction of the axis of rotation (A ) of the pressure roller device ( 22 ) are connected in series. 8. Device for the production of profiled long material with surface embossing according to one of claims 1 to 7, characterized in that the embossing member ( 7 ) is designed as an exchange unit which is exchanged for another embossing member exchange unit with a different profile and / or a different embossing pattern. Negative relief is interchangeable as a unit. 9. Device for the production of profiled long material with surface embossing according to one of claims 1 to 7, characterized in that a drive device for driving the embossing member ( 2 ) is provided in the direction of rotation (R) thereof. 10. A device for producing profiled long material with surface embossing according to one of claims 1 to 9, characterized in that a feed device for driving the long material ( 5 , 5 ') is provided. 11. A device for producing profiled long material with surface embossing according to one of claims 1 to 10, characterized in that a pressure force generating device is provided which engages on the axis of rotation (A) of the rotating roller ( 9 ) or the pressure roller device ( 22 ), such that the embossing member ( 7 ) is pressed in the direction of the profile contour of the long material ( 5 , 5 '). 12. Device for the production of profiled long material with surface embossing according to one of claims 1 to 11, characterized in that the embossing device ( 2 ) is connected in series to a profile manufacturing device ( 1 ). 13. Device for producing profiled long material with surface embossing according to one of claims 1 to 12, characterized in that the embossing device ( 2 ) is preceded by a coating device ( 3 ) for surface coating of the already profiled long material ( 5 , 5 '). 14. Device for the production of profiled long material with surface embossing according to claim 13, characterized in that the coating device ( 3 ) has a coating unit ( 3.2 ) for applying a lacquer to the already profiled long material ( 5 , 5 ') and a drying device ( 3.3 ) to dry the applied paint. 15. A device for producing profiled long material with surface embossing according to one of claims 1 to 14, characterized in that the embossing device ( 2 ) is followed by a post-treatment device ( 4 ) for fixing the embossing pattern to the long material. 16. A device for producing profiled long material with surface embossing according to claim 15, characterized in that the post-treatment device ( 4 ) has a final drying device ( 4.2 ) for drying the applied and embossed lacquer. 17. A process for the production of profiled long material with surface embossing, in which the profile of the long material ( 5 , 5 ') is first formed and then the surface is embossed on the long material, the embossing with rolling off at least one with an embossed pattern. Embossing element ( 7 ) provided with a negative relief is provided on the surface ( 6 , 6 ') of the long material ( 5 , 5 '), the profile contour of the long material being shaped in its profile contour.