EP0999925B1 - Method and device for working substantially sheet-or lath-shaped workpieces, in particular made of derived timber products - Google Patents

Description

TECHNICAL AREA

The invention relates to a method and an apparatus for Processing of essentially flat or strip-shaped Workpieces, in particular made of wood materials or like.

STATE OF THE ART

If flat or plate-shaped, strip-shaped or Similar workpieces (especially those made from wood materials or the like) that are wholly or partially composed of one open pore, porous, crumbly, irregular or rough surface structure or more or less material consisting of granular material particles (such as for example wood or chipboard etc. as well as adequate Workpieces additionally covered with veneer sheet materials or otherwise coated) in the edge area a separation process can be processed so that a specific There are many edge profiles on the workpiece Applications, the edge profile has to be tempered, because the parting surfaces created there on the workpiece either do not meet certain design requirements or a poor surface quality and / or strength exhibit. Therefore, various methods for Tempering of such edge profiles developed.

A generic method and a generic one Device for continuous processing of flat or strip-shaped workpieces from an open-pore Wood material and the like are from the German Patent application 195 18 925.6 of the applicant known. In which Process during which a workpiece is carried out in a predetermined passage or movement direction or The workpiece is passed through several processing stations processed by milling and / or grinding in the edge area and so an essentially elongated open pore Edge profile generated on which a hot coating compound applied and by hot filling and if necessary subsequent grinding, is smoothed. The device for Carrying out this process comprises the respective one Workpiece holding fixture and for the continuous processing arranged one after the other Processing stations, namely a milling and / or Grinding station, an order station for the remuneration mass and a spatula station. With the mentioned method as well the associated device can complete machining of Workpieces made of open-pore wood-based materials and the like done in one pass in the edge area.

DD-PS 29 705 is a method for solidification particularly stressed areas in the edge area of porous Boards, especially chipboard, are known. The Particle board clamped in a tub, corresponding to the edge area of the workpiece to be tempered is sealed, and over the sealed tub is a Solidifying agent in the form of an adhesive or Pressurized adhesive mixture pressed into the edge of the workpiece. Then there is a curing of the adhesive mixture required.

Furthermore, DE 16 53 240 C3 discloses a device with the porous chipboard panels in the edge area to increase for example, the screw strength can be solidified can. Here, a solidifying agent from a Press-in chamber under pressure in the porous edge of the workpiece pressed.

DE 40 28 166 C2 describes one method and one Device for strengthening chipboard in the edge area proposed in which a solidifying agent individual nozzles is injected into the edge area.

Furthermore, from DE-OS 23 61 434 a method emerges Making a smooth finish without pores on one rough and grained cut surface of a plate-shaped Workpiece made of pressed wood, plywood or the like. there becomes a layer of plastic, polyurethane or synthetic resin applied to the edge with the pores around the pores to seal and structurally solidify them. at mechanical application of the sealing material will Inject the material into molds with the contour of the Workpiece proposed. After drying or curing the applied sealing material is sanded or Surface smoothing.

In DE 24 33 476 B2 a method is proposed for on a porous cut edge, a prefabricated one Intermediate layer made of a cellulose material made by a Roll can be peeled off, is glued, this Intermediate layer then again with a prefabricated one Decorative layer can be glued.

In the previously known generic methods and Devices occur when applying the remuneration mass, mostly fast curing and depending on the each workpiece material usually in excess apply and distribute as evenly as possible, especially at the ends of the edge profile to be treated as well as the edges adjoining it at an angle of the workpiece to undesirable burrs or Compound mass buildup. Depending on the type and property the rake formed can be of the remuneration used or the adhesion until the next processing step partially or even fully solidify. To avoid of surface irregularities and e.g. one possible pulling out of the workpiece by against the Burr or a clinging machining tool what especially with porous or slightly crumbly materials, such as chipboard or the like easily rejected can therefore lead to the said ridge or the adhesion in an extra processing step remove. However, this usually requires a separate one Processing station and is time and cost intensive, so that It is desirable to avoid such processing. Workpiece outliers and those in connection with the application the ridges or buildup of However, mass residues can also occur when smoothing the Compensation mass occur, especially if this for example in a still uncured state Filling, brushing or the like is leveled. Also in this case the pressure of the workpiece an outlier on one fragile corner or at such an end region of the Editing edge profile cause no Experience reinforcing effect through hardened compensation compound Has. This disadvantageous effect is with the aforementioned Wood or chipboard, especially those that over a core layer with coarse-grained chips and outer layers with finer chips, or comparable materials particularly pronounced and difficult to use. Just for one automated workpiece machining is, however smooth operation with as little scrap as possible desirable.

PRESENTATION OF THE INVENTION

The invention is therefore based on the object of a suitable Process for processing essentially flat or strip-shaped workpieces, in particular made of wood materials or the like, to create the prior art inherent disadvantages in a simple and effective way and Avoid as far as possible. Another job is a suitable processing device to create for such workpieces.

The first-mentioned object is achieved by an inventive one Method with the features of claim 1.

This process essentially works on flat or plate-shaped or strip-shaped Workpieces, in particular made of wood materials or the like, at least one edge region at least one essentially elongated edge profile generated on the workpiece, at least one compensation mass applied the edge profile and the compensation mass smoothed. Immediately before or during application and / or the smoothing of the compensation mass will Edge profile temporarily extended at at least one end and the application and / or smoothing of the compensation mass begins in front of or on the temporarily extended edge profile and / or ends on or behind the temporarily elongated edge profile.

The workpieces mentioned include within the meaning of the invention including those made of solid wood, plywood or a completely or partially open-pored, porous, crumbly, fibrous, irregular or rough Surface structure or more or less material comprising granular material particles, including combinations thereof. So in particular Wood or chipboard of any kind, which also with Wood and / or plastic veneers covered or otherwise can be coated, i.e. the aforementioned Do not show material properties ad hoc. to Processing with the inventive method are also Workpieces made of metal, plastic, composite materials or the like suitable with an open-pore structure or one already given on the material side or from one Machining resulting more or less rough or irregular surface. The generated on the workpiece Edge profile, which is an even or uneven Can have profile shape, is according to the invention for example by press molding, a cutting process such as Cutting, milling, form milling, grinding, form grinding or generated another suitable processing step. The Edge course of the provided with such a profile Workpiece is related to its length preferably rectilinear, but can in principle also be curved. Also a groove in an edge area of the workpiece opens, is an edge profile in the sense of Understanding invention.

A thermoplastic is preferably used as the coating compound Mass, a thermosetting mass or one to one Thermosetting thermosetting compound used. For example, it can be a moisture-curing polyurethane system. The Invention, however, is not exclusive to this particular one The type of remuneration is limited. Applying the Compensation is made by means of a suitable Application device, for example via a heated or unheated application roller or roller, an application nozzle Squeegee, a coating unit or a transfer ribbon applicator and can be repeated one or more times. The Compensation can be both in the uncured as well hardened state can be smoothed. In case of use a heated and still plastic compensation mass is that Smoothing, for example by hot filling with a or several spatulas can be carried out. One already hardened remuneration is e.g. can be smoothed by grinding. The process steps mentioned above can apply any further steps, e.g. Apply a second Compensation component on the compensation mass, drying, Fine grinding, painting and / or hot stamping or gluing the workpiece with a coating material, etc. connect.

The edge profile is temporarily extended to the mentioned times such that suitable Extension means, which one to be coated or to smoothing edge profile essentially corresponding contour have, i.e. the positive shape of the edge profile correspond, such manually and / or mechanically at least one end of the edge profile can be set that the Edge profile without significant interruption except for the Extension means continues, so in a way artificial is extended. As a result, that also changes Workpiece shape and dimensions. The edge profile has through the measures mentioned ergo precisely on the critical Places where usually those described at the beginning technical problems occur, at least temporarily such a shape and approximately such properties that in essentially an uninterrupted or continuous Edge profile would correspond. It gets explicit on it noted that the contour of the used Extension means not necessarily a true to form Rendering of the edge profile must and usually also shouldn't be. Rather, the contour is, if necessary Consideration of necessary processing allowances, a desired ideal or final shape of the edge profile correspond, which itself, depending on the used Workpiece material, possibly over a very has irregular or porous surface structure and therefore only for the purpose of approximating the ideal or final shape accordingly with the remuneration treat is.

The extension means can therefore also be used as one Be designed end piece, for example a Groove that opens into a workpiece edge, in the longitudinal direction of the groove closes. This is particularly advantageous if the Groove completely, i.e. down to the level of Workpiece surface, filled with the compensation compound should be, since the end piece then an expiry of Compensation compound prevented and the formation of a smooth Workpiece completion enabled. The extender is expediently additionally designed such that its top with the surface of the workpiece if possible fits flush and smooth. As an edge profile is in line with the basic idea of the invention also a through a machining or the like generated and with area portion to be treated understand who e.g. in a flat central area of the Workpiece begins and in an open edge area of the Workpiece opens or passes over.

In addition to or instead of a separate one In the sense of the invention, an extension means is also a similarly designed second workpiece so gapless attachable to a first that the edge profile extension of first workpiece through the corresponding edge profile of the second workpiece is formed. The prerequisite for this are of course suitable workpiece geometries.

Because the application and / or smoothing of the compensation mass before or begins on the temporarily extended edge profile and / or on or behind the temporarily extended Edge profile ends, i.e. in other words: the application or smoothing the application mass based on the Longitudinal extension of the edge profile like in a continuous edge profile without significant interruption over the actual edge profile area to be treated beyond that, there can be no burrs or buildup of the Make up remuneration measures at the critical points a corner, edge or edge of the workpiece usually a beginning or an end of the one to be edited Show edge profile. That way it's already in a single pass possible a qualitative high quality order (especially in excess) and / or one to achieve the same smoothing of the compensation mass without then a separate time and cost intensive Post processing is required. Also at conventional procedures by partially or completely hardened burrs or buildup-related workpiece outliers are both with the inventive method Application and avoidable when smoothing. In addition, the temporary extension of the Edge profile a certain reinforcing effect on the said critical points of the edge profile on what is primary in connection with machining tools, in particular fast rotating cutting high performance tools or Pressure devices, of interest, which, as above set out to exert a certain force on the edge profile and can fray or tear it out. The The inventive method is from the aforementioned Reasons particularly advantageous to apply to workpieces that one or more open-pore, porous or light crumbly materials exist, such as wood or Pressboard and the like, and allows high Processing speeds. The method according to the invention can be carried out both manually and by machine. Especially in the case of automated workpiece machining, the solution according to the invention in a simple and effective manner and Way a smoother operation with a considerable Reduction of the committee. Because of the achievable high Product quality as well as the possibility of shortened Machining cycles without post-processing is not one insignificant increase in product yield with reduced Production costs realizable, so that the invention Procedures also remarkable from an economic point of view Offers advantages.

Further advantageous embodiments of the invention Procedures are the subject of subclaims 2 to 11.

The object underlying the invention is further solved by a device according to the invention with the Features of claim 12.

This device for editing essentially flat or strip-shaped workpieces, in particular from Wood materials or the like, with at least one in essential elongated edge profile, at least applied a coating compound and then smoothed it is comprised of at least one associated with the workpiece Edge profile extension device, the one Has profile extension section whose profile shape with that of the edge profile of the workpiece essentially matches. For the edge profile extension device or their profile extension section and their Basically, the properties above apply to the Explanation of the method according to the invention in context with the adequate extension means, so that further explanations are not required.

The device according to the invention also offers that in detail in connection with the inventive method outlined benefits. It should also be added that conventional processing devices of the generic type constructively relatively simple and inexpensive on a device according to the invention are to be converted.

Further advantageous design features of the The device according to the invention are the subject of Subclaims 2 to 11.

Embodiments of the invention with additional Design details and other advantages are below with reference to the accompanying drawings described and explained.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1

eine schematische Draufsicht eines Teilbereichs einer erfindungsgemäßen Vorrichtung, in dem an einem Werkstück diverse grundlegende Bearbeitungsschritte des erfindungsgemäßen Verfahrens gemäß einem ersten Ausführungsbeispiel durchgeführt werden,

Fig. 2

eine schematische Perspektivansicht der Vorrichtung gemäß Fig. 1;

Fig. 3

ein schematisches Diagramm der grundlegenden Bearbeitungsschritte nach Fig. 1 und 2 sowie einiger weiterer optionaler Schritte des erfindungsgemäßen Verfahrens;

Fig. 4

eine schematische Perspektivansicht einer mit dem zu bearbeitenden Werkstück zu kombinierenden speziellen Komponente der erfindungsgemäßen Vorrichtung, mit dem an dem Werkstück besonders wesentliche Schritte des erfindungsgemäßen Verfahrens durchgeführt werden;

Fig. 5

eine schematische Seitenansicht des speziellen Teilbereichs der Vorrichtung in Blickrichtung des Pfeils A in der Fig. 4 ;

Fig. 6

eine schematische Draufsicht des speziellen Teilbereichs der Vorrichtung in Blickrichtung des Pfeils B in der Fig. 4 ;

Fig. 7 und 8

schematische Seitenansichten weiterer Ausgestaltungsdetails eines einem vorderen Randprofilabschnitt des Werkstückes zugeordneten speziellen Teilbereichs der erfindungsgemäßen Vorrichtung; ferner gehen aus diesen Figuren weitere erfindungsgemäße Verfahrensschritte hervor.

Fig. 9 und 10

schematische Seitenansichten weiterer Ausgestaltungsdetails eines einem hinteren Randprofilabschnitt des Werkstückes zugeordneten speziellen Teilbereichs der erfindungsgemäßen Vorrichtung; ferner gehen aus diesen Figuren weitere erfindungsgemäße Verfahrensschritte hervor.

Fig. 11

eine zu der Darstellungsweise in Fig. 4 analoge schematische Perspektivansicht, aus der wesentliche Schritte des erfindungsgemäßen Verfahrens gemäß einem zweiten Ausführungsbeispiel hervorgehen; und

Fig. 12

eine schematische Gesamtübersicht der erfindungsgemäßen Vorrichtung in Seitenansicht.

It shows:

Fig. 1

1 shows a schematic top view of a partial area of a device according to the invention, in which various basic processing steps of the method according to the invention are carried out on a workpiece according to a first exemplary embodiment,

Fig. 2

a schematic perspective view of the device of FIG. 1;

Fig. 3

a schematic diagram of the basic processing steps of Figures 1 and 2 and some other optional steps of the inventive method.

Fig. 4

a schematic perspective view of a to be combined with the workpiece to be machined special component of the device according to the invention, with which particularly important steps of the method according to the invention are carried out on the workpiece;

Fig. 5

is a schematic side view of the special portion of the device in the direction of arrow A in Fig. 4;

Fig. 6

a schematic plan view of the special portion of the device in the direction of arrow B in Fig. 4;

7 and 8

schematic side views of further design details of a special partial area of the device according to the invention assigned to a front edge profile section of the workpiece; further process steps according to the invention are evident from these figures.

9 and 10

schematic side views of further design details of a special partial area of the device according to the invention assigned to a rear edge profile section of the workpiece; further process steps according to the invention are evident from these figures.

Fig. 11

a schematic perspective view analogous to the representation in FIG. 4, from which the essential steps of the method according to the invention according to a second exemplary embodiment emerge; and

Fig. 12

a schematic overview of the device according to the invention in side view.

DESCRIPTION OF AN EMBODIMENT OF THE INVENTION

In the description below and in the figures To avoid repetitions, the same components and Components also identified with the same reference symbols, unless further differentiation is required.

In Fig. 1 is a schematic plan view Part of a device according to the invention shown which in the present case as a continuous processing device is designed. A flat, plate-shaped workpiece 2 (here: a chipboard with rectangular plan shape, due to the compressed Wood particles a porous, open-pored 4 and relatively fragile Edge 6, which is to be remunerated) is in one Clamping device, not shown, clamped and is in a predetermined and indicated by the arrow D indicated direction of passage through the device transported, there being several processing stations passes. In the section shown are for the purpose tempering the workpiece edge 6 some for that inventive method according to a first embodiment typical basic processing steps performed.

As can be seen in Fig. 1, is on the device Applicator roller 8 and, based on the direction D in a distance behind it, a heated first spatula blade 10 arranged. The first spatula blade 10 closes with a straight, vertical subsection 6.2 one already on one previous machining station by form milling and Grinding generated edge profile 6 of the workpiece 2 a acute angle α. A second spatula blade 12 is like can be seen in FIG. 2 in a schematic perspective view, an upper, S-shaped curved section 6.4 of the Edge profile 6 assigned and something in the direction D positioned behind the first spatula blade 10. With the reference numeral 14 is a compensation mass characterized with which the edge profile 6 is tempered.

The workpiece 2 first runs past the application roller 8, from the surface of the coating compound 14, for example in a hot state, transferred to the edge profile 6 becomes. The workpiece 2 with the edge profile 6 applied layer of coating compound 14 moves then continuously heated to the two Spatula blades 10, 12 further. While the edge profile 6 on runs along the spatula blades 10, 12 applied mass 14 from the blades 10, 12 to the open Pores 4 of the edge profile 6 directed and into the pores 4 pressed so that they are closed. In this way the coating compound 14 penetrates evenly into the pores 4 and the unevenness of the edge profile 6. At the same time due to the action of the spatula blades 10, 12 also a Smoothing the edge profile 6 and the other Compensation layer 14 adhering to outer surfaces achieved as it is shown schematically at the left edge profile end in Fig. 2 can be seen.

3 are again in a schematic diagram the basic processing steps of FIGS. 1 and 2 as well as some further optional steps of the invention Procedure as in one run with a constant workpiece clamping can, shown. The direction of flow of the device is again marked with an arrow. First it will Workpiece to be machined, clamped in the device (Fig. 3A). Then the workpiece 2 is by profile milling processed and a predetermined edge profile generated (Fig. 3B). This is followed by a profile grinding of the Edge profile (Fig. 3C). This is followed by the first Applying the compensation mass and then the (hot) Filling the coating compound into the remaining pores and unevenness of the edge profile (Fig. 3D) as previously explained in detail. In addition to this, for example, another Connect the grinding process (Fig. 3E). Furthermore, in one further processing step paint on the so tempered Edge profile applied (Fig. 3F), by ultraviolet Irradiation or the like dried (Fig. 3G) and in then be ground (Fig. 3H). Moreover, it is possible a decorative paper film by hot stamping on the Apply edge profile (Fig. 3I). 3 The individual processing steps shown may vary Repeat, vary or omit as needed.

4 shows a schematic perspective view of a to be combined with the workpiece 2 to be machined special component of the device according to the invention, with the particularly important steps on the workpiece 2 method according to the invention are carried out. In the said component is a workpiece 2 associated edge profile extension device 16, in hereinafter briefly called profile counterpart 16, which at Applying and / or smoothing the compensation mass 14 used and has a profile extension section 16.2, whose profile shape with that of the edge profile 6 of the workpiece 2 essentially coincides. More specifically, it is Profile extension section 16.2 of the profile counterpart 16 designed so that its contour taking into account the when applying and smoothing the compensation compound 14 required machining allowances or tolerances of the desired ideal or final shape of the workpiece edge profile 6 corresponds, which itself due to its further above described material properties over a relatively irregular and porous surface structure 4 and therefore only for the purpose of approximation the ideal or final shape corresponding to the remuneration mass 14 is to be treated. The profile counterpart 16 is in The present exemplary embodiment made of a metal material and / or plastic and has a high Surface quality with low roughness.

The edge profile 6 to be treated with the compensation compound 14 is now immediately before or during the invention Applying and / or smoothing the compensation mass 14 temporarily extended at least one end by Profile counterpart 16, as in Fig. 4 by the double arrows 18th alluded to, so complete and flush with the already pre-milled edge profile 6 is set that the Profile extension section 16.2 to a certain extent continuous extension of the actual edge profile 6 of the workpiece 2 forms. The arrangement of the Profile counterpart 16 at the end of the edge profile 6 and the Transition from edge profile 6 to the profile extension section 16.2 in the extended state is also particularly good in the Fig. 5, which is a corresponding schematic side view in a viewing direction according to arrow A in Fig. 4, and in Fig. 6, which is a corresponding schematic plan view in a viewing direction according to arrow B in FIG. 4, recognizable. The rear end of the workpiece edge profile 6, that is not shown in the drawings is in present example also in an analogous manner with a corresponding profile counterpart 16 equipped. In the Fig. 5 is also the edge profile shape of the Workpiece 2 in a 90 ° into the viewing plane folded sectional view recognizable.

Now, as previously in connection with the Figures 1 to 3 explains the edge profile 6 with the help of Compensation mass 14 compensated, so begins at the predetermined Flow direction D the application or smoothing of the Compensation mass, as indicated by arrow IA in FIGS. 5 and 6 indicated, on the temporarily elongated edge profile 16.2, 6, namely on the profile extension section 16.2 of the front profile counterpart 16, goes over the joint 20th between the front profile counterpart 16 and the front End of the edge profile 6 and ends on the temporary extended edge profile 16.2, 6, namely on the Profile extension section 16.2 of the rear, in the Drawing no longer shown profile counterpart 16. Da as explained above, the application and smoothing of the Compensation mass 14 and thus also the smoothing of Edge profile 6 takes place in a common step here the profile counterparts 16 only removed after smoothing.

As can also be seen from FIG. 4, this has Profile counterpart 16 a to the Profile extension section 16.2 at a right angle β extending edge section 16.4, which has a shape, to the shape of the edge profile 6 of the workpiece 2 and the profile shape of the profile extension section 16.2 exactly is complementary, so to speak the Negative form of the profile extension section 16.2 or Edge profile 6 corresponds. This edge section 16.4 serves in the present case both as a cover and Reinforcement device for temporary covering and Reinforcing that already in a previous one Process step, i.e. here by profile milling and Profile grinding treated edge profile 6p of the workpiece 2, which is at right angles to the one currently in use Compensation compound 14 to be treated edge profile 6 extends and adjoins this corner as well as a contactable with the workpiece 2 stop for Attaching and positioning the profile counterpart 16. Die Cover and reinforcement device as well as the stop are integrated in the profile counterpart 16 here. The flush, gapless and essentially full-surface system of the workpiece 2 at the edge portion 16.4 of the Profile counterpart 16 and the special Shape of the edge section 16.4 generated cover and Reinforcing effect is again particularly good in the figures 5 and 6 recognizable.

From the foregoing it can be seen that if only for the period of application and Smoothing the compensation compound 14 temporarily on the workpiece 2 attached profile counterpart 16 is removed again, too through the edge section 16.4 of the profile counterpart 16 temporary cover, reinforcement and Stop function is canceled again.

After removing the temporarily attached The counterpart 16 has the workpiece 2 on one each end of the tempered edge profile 6 a precise, sharply defined and true-to-shape corner without noteworthy Burrs or even outliers. It's also over the corner Adjacent, not yet hardened edge profile 6p free of Attachments due to mass residues. The workpiece is therefore instant ready for the next processing step.

Although the basic principle of the method according to the invention as well as the core features of the device according to the invention above only in connection with a Continuous processing on an individual to be remunerated Edge profile 6 have been explained, it goes without saying that the aforementioned steps, for example, also manually or feasible in a stationary device are. You can also edit another edge profile of the workpiece and / or for coating one already once processed edge profile with at least one additional remuneration measures at least one of the previous described work steps depending on the application be repeated at least once.

7 and 8 each show a schematic side view further design details of a front section of the edge profile 6 of the workpiece 2 assigned partial area the edge profile extension device flow device according to the invention in two different Positions. 9 and 10 show others in an analogous manner Design details of a rear section of the Edge profile 6 of the workpiece 2 assigned portion of Edge profile extension device in two different Positions. Furthermore, FIGS. 7 to 10 go further steps of the method according to the invention emerge. The Direction of passage of the workpiece is in said Drawings again indicated by the arrow D. The edge profile 6 to be coated lies in the Viewing plane.

As can be seen from FIGS. 7 to 10, this includes Variant of the edge profile extension device for one single edge profile 6 of the workpiece 2 a pair of Profile counterparts 16, namely one for the front end (Fig. 7 and 8) and one for the rear end of Edge profile (Fig. 9 or 10). The profile counterparts 16 itself essentially correspond to that already in connection with the construction illustrated in FIGS. 4 to 6 however, also an adapter device 22, via which they each releasably with as a holding device Acting section 24.2 below Movement mechanism M described in more detail are.

Since the temporary lengthening of the edge profile 6 at Continuous processing device during the continuous Continuous movement of the workpiece 2 is to take place Entire edge profile extension device along the Workpiece pass direction D arranged movably and with the workpiece 2 along a portion of the Continuous path can also be moved, namely here in the area of those processing stations that are responsible for the remuneration of the Edge profile, that is for applying and smoothing the Compensation mass 14 are provided (see FIG. 3D). This Stations in Figures 7 to 10 for clarity are not shown for the sake of the following Summary briefly as a remuneration station designated. Since this device also has a variety of at a certain distance from successive workpieces is to be processed sequentially in the remuneration station in the present case the edge profile extension device in the by a predetermined starting position PS and End position PE periodically predefined and can be moved back, as in FIGS Double arrow indicated. The starting position PS is here based on the flow direction D immediately before Entrance to the remuneration station and the end position PE immediately behind the exit of the remuneration station. The Edge profile 6 of one running towards the compensation station Workpiece 2 is then extended at the starting position PS the edge profile extension during the Continuous machining, in which the workpiece 2 in the direction of End position PE steps in the remuneration station maintained and finally at the end position PE again away. Here, the Edge profile extension device essentially from the Start position PS moved to end position PE. By Retraction of the edge profile extension device in the Starting position PS the movement cycle is complete and the edge profile extension device is next Workpiece available. The more specific details of this Process will now be explained below.

To carry out the movement sequence described are front (Fig. 7 and 8) and the rear profile counterpart 16 (Fig. 9 and 10) of the edge profile extension device each with an essentially identical design, M mechanism working simultaneously. The Movement mechanism M includes one below and parallel to the direction of passage D of the workpiece 2 arranged Linear guide 26 on which a rotor 28 over a Feed cylinder 30 from a right start position, according to the starting position PS, to a left End position, corresponding to the end position PE, and back is movable. On the runner 28 is a short 32 and a long pivot lever 24 composed Lever mechanism arranged. The long pivot lever 24 on the upper free end 24.2 the profile counterpart 16 releasably is held, is via a swivel cylinder 34 from one approximately horizontal (Fig. 8 and Fig. 9) in a vertical Position (Fig. 7 and Fig. 10) pivotable. The front one (Figs. 7 and 8) and rear movement mechanism M (Fig. 9 and 10) differ in their structure only in that in the front movement mechanism M, the pivot lever 24 is pivotable in the horizontal direction D and in the rear against the direction of flow D. For better Distinction in the description below receive the the same components of the front movement mechanism with their reference numerals the index "v" and that of the rear den Index "h".

The front and rear are in the starting position PS Movement mechanism M in the in Figures 7 and 9 positions shown, the pivot lever 24v in a vertical and the pivot lever 24h in a horizontal Position is. The runners 28 are in their right Initial position. As in Fig. 9 by dashed lines outlined, runs over to the remuneration station Workpiece 2 the folded down rear pivot lever 24h and bumps gently against the stop 16.4 of the front Profile counterpart 16v (Fig. 7), the feed cylinder 30v is activated shortly before the workpiece 2 strikes, starts moving in the direction of flow D and this Catch workpiece 2 with the help of the profile counterpart 16v. On this way the front profile counterpart 16v becomes the front Positioned end of the edge profile 6. As soon as the workpiece 2 has run over the rear pivot lever 16h, the sits down rear feed cylinder 30h also in the direction of flow D in motion, the rear pivot lever 24h is by means of Swivel cylinder 34h pivoted upwards into the vertical and positions the rear profile extension piece 16h 10 at the rear end of the Edge profile 6.

The swivel levers 24v, 24h of the front and rear Movement mechanism M form in the previously described Configuration, so to speak, a claw-like or pincer-like Fixation mechanism that is closed with its on the upper sections 24.2 of the pivot levers 24v, 24h located profile extensions 16v, 16h that Workpiece 2 encloses on two sides and thus the Profile counterparts 16v, 16h detachable but secure and a perfect fit the respective end of the edge profile to be coated 6 fixed and this artificially extended. The complete one The function of this fixing mechanism is accordingly such that the front pivot lever 24v against the direction of travel D closes and releases the fixation in the direction of flow D. while the rear pivot lever 24h in the direction of passage D closes and the fixation in the direction D again solves.

When producing the temporary edge profile extension care must be taken that at least the extension of the front end of the edge profile 6 is still complete before applying and / or smoothing the compensation compound 14 on the edge profile 6 in the tempering station. The rear edge profile extension could in the present case in principle be carried out somewhat delayed, because this part of the workpiece is the compensation station later reached. While the workpiece 2 the tempering station passes through and the temporarily elongated edge profile, such as already described in connection with FIGS. 1 to 6, is remunerated with the remuneration mass 14, the two profile counterparts 16v, 16h in the in Figures 7 and 10 configuration shown, it over the Lever mechanisms 24, 32 and the associated runners 28, the in the same direction and simultaneously by means of the exiting Feed cylinder 30 towards its end position be pushed, carried with the workpiece 2. It so the entire edge profile extension device moved with the workpiece 2.

The tempering of the edge profile 6 is completed, in short before the runners 28 of the movement mechanisms M their front Have reached the end position. As shown in Fig. 8, the fixation of the front profile counterpart 16v on Workpiece 2 loosened again, i.e. the front Edge profile extension removed by the pivot lever 24v by actuating the swing cylinder 30v in Passage direction D folds forward into the horizontal and releases the further pass path for workpiece 2. The Workpiece 2 runs over the folded down front Swivel lever 24v, as in Fig. 8 by dashed lines indicated, and moves out of the remuneration station. The removal or detachment of the rear profile counterpart 16h and thus the lifting of the temporary rear In principle, edge profile extensions can do this alone happen that the workpiece 2 in the direction D moved further while the rear profile counterpart 16h together with the rear feed mechanism M in the in Fig. 10 brakes the configuration shown or briefly park in the end position PE. In the present case, however in connection with the progression of the workpiece 2 also the rear pivot lever 24h back into that in FIG. 9 horizontal position shown pivoted back. The removal the front edge profile extension could in the present In principle, the case falls somewhat earlier than the removal of the rear Edge profile extension can be carried out as the tempering already in the front section of the edge profile 6 completed while it is in a rear, i.e. trailing section is not yet completed.

The entire edge profile extension device is now by pulling the feed cylinder 30 back into the move the original starting position PS, whereby the Movement cycle is complete. The Edge profile extension device stands, as already above mentioned, now for a new workpiece or one in one previous work step already machined workpiece to disposal. When returning to the starting position PS can the profile counterparts 16 cleaned or if necessary can be exchanged for other profile counterparts. In this Connection is also made to the following explanations on Fig. 12 noted.

The positioning of the front 16v and rear Profile counterpart 16h and the coordinated movements of the Feed cylinder 30 and the swivel cylinder 34 take place at the embodiment shown in FIGS. 7 to 10 in essentially simultaneous and are replaced by appropriate Sensor devices and associated control and / or Control device in the figures for clarity are not shown, checked.

FIG. 11 shows an analog to the representation in FIG. 4 schematic perspective view, from the essential steps a second embodiment of the invention Procedure emerge. In the present application case processed a strip-shaped workpiece 2, which from a coated on one side with a plastic veneer 36 Pressboard 38 exists. In the top of the workpiece 2 is a semicircle through the plastic veneer 36 Milled groove 40, which on the end faces of the workpiece 2nd opens into an edge area of the same. The Groove 40 places the originally covered pressboard material 38 free, which has a rather porous, irregular surface and therefore in the area of the groove 40 by application and smoothing to be refined according to a remuneration mass. To this purpose is similar to the variant according to FIG. 4 to 6 a two profile counterparts 16 comprising Groove profile extension device to those Workpiece edges are placed seamlessly into which the ends of the Grooves 40 open. The profile counterparts 16 are on her Top with one of the groove profile shape corresponding indentation 42 provided so that by means of Profile counterparts 16 one with the edge profile extension 4 to 6 comparable temporary Groove profile extension is realized.

The application and / or smoothing of the compensation mass on the Groove surface, which in a to the embodiment Fig. 1 to 6 analogous way, but with accordingly on the Shape of the groove 40 coordinated tools happens begins on the temporarily extended groove profile, namely in the Indentation 42 of the front counterpart in FIG. 11 16, and also ends on the temporarily elongated groove profile, namely in the recess 42 of the rear in the drawing Profile counterpart 16. This processing area is in the 11 again indicated by the reference symbol IA. The surface of the coating which comes into contact with the compensation Profile counterpart 16 is in the present example with a special non-stick coating 44 provided that adhering of the remuneration measures used prevented or at least reduced. The processing of that shown in Fig. 11 Workpiece 2 can also be manually or mechanically, in particular also take place in a continuous process.

FIG. 12 is another schematic overview of the Device according to the invention shown in side view, from which the basic arrangement of the to carry out the required processing steps according to the invention corresponding processing stations that are related to the workpiece direction D from left to right are arranged one behind the other. All Processing stations are here in a common Continuous processing device integrated and the Editing steps can be done with the same Workpiece clamping can be carried out in one pass, see above that with the device a complete processing of the Workpiece can take place in the edge area.

Specifically, they are one behind the other in the direction of flow D. first a profile milling station S1, a profile grinding station S2 and an application and a (hot) spatula station S3 arranged. The station S3 comprises, as from the drawing of the actual device shown pulled out, even the Edge profile extension device 16 and one of these associated cleaning device 46 for cleaning the Profile counterparts and a changing device 48 for automatic change or exchange of Profile counterparts. Then join the S3 station a profile station S4, a painting station S5, a Drying station S6, a grinding station S7 and one Hot stamping station S8 provided. All Processing stations S1 - S8 can be on one comparatively short throughput distance for the workpiece be accommodated so that there is a compact Complete machining device can be realized.

The invention is not limited to the above embodiments, which is only the general explanation of the basic idea serve the invention, limited. Within the scope of protection can the inventive method and device according to the invention rather than that Assume the embodiments described above. The The method and the device can in particular Features that are a combination of the respective Represent individual features of the associated claims. The Surfaces 16.2, 16.4 of the edge profile extension device 16 do not necessarily have to be completely smooth but can also be a certain one if necessary Have surface structure, such as when the Compensation compound, for example by means of a notched trowel or the like is applied and a corresponding grooved structure receives. Furthermore, the Edge profile extension device not only as block-like, short profile counterpart 16 (as e.g. in the 4 to 6)) but also as an elongated Be formed from an edge of the body Workpiece extends to another and for simultaneous Machining two edge profiles is suitable. It will further noted that the temporary Do not necessarily extend the edge profile in everyone Machining run of a workpiece must take place. to complete edge processing of a rectangular Starting workpiece in four successive passes it is possible, for example, that the first two passes without edge profile extension in the longitudinal arrangement of the Workpiece and the third and fourth pass each in Cross arrangement of the workpiece with edge profile extension be carried out. The smoothing of the remuneration mass is also in a separate step and by others Smoothing processes, e.g. by grinding the hardened Remuneration measures realizable. Of course you can too here the invention Edge profile extension device are used. It is also conceivable that Edge profile extension device also when painting or to use other comparable processing steps.

Reference signs in the claims, the description and the Drawings are only for a better understanding of the Invention and are not intended to limit the scope.

LIST OF REFERENCE NUMBERS

2

Flächiges, plattenförmiges Werkstück

4

Offene Poren / poröse Oberflächenstruktur von 6

6

Werkstückkante / Kantenprofil von 2

6.2

Vertikaler Teilabschnitt von 6

6.4

S-förmig geschwungenen Teilabschnitt von 6

6p

Kantenprofil von 6, in einem vorangegangenen Arbeitsschritt bearbeitet

8

Auftragswalze

10

Spachtelklinge

12

Spachtelklinge

14

Vergütungsmasse

16

Kantenprofilverlängerungseinrichtung(en) / Profilgegenstück(e)

16.2

Profilverlängerungsabschnitt von 16

16.4

Randabschnitt von 16 / Abdeckungs- und Verstärkungseinrichtung / Anschlag

18

Ansatzrichtung

20

Stoßstelle zwischen 16 und 6 bzw. 16.4 und 6p

22

Adaptereinrichtung von 16

24

Langer Schwenkhebel

24.2

Halteeinrichtung für 16

26

Linearführung

28

Läufer

30

Vorschubzylinder

32

Kurzer Schwenkhebel

34

Schwenkzylinder

36

Kunststoff-Furnier

38

Preßspanplatte

40

Halbrunde Nut

42

Halbrunde Einbuchtung

44

Antihaftbeschichtung von 16

46

Reinigungseinrichtung

48

Profilgegenstück-Wechseleinrichtung

..h

Index für hintere Bauteile/Komponenten

..V

Index für vordere Bauteile/Komponenten

α

Winkel zwischen 10 und 6

β

Winkel zwischen 16.2 und 16.4

A

Blickrichtung

B

Blickrichtung

D

Durchlaufrichtung

IA

Vergütungsbereich

M

Bewegungsmechanismus

PS

Startposition

PE

Endposition

S1

Profilfrässtation

S2

Profilschleifstation

S3

Auftrags- und Heißspachtelstation

S4

Profilschleifstation

S5

Lackierstation

S6

Trocknungsstation

S7

Schleifstation

S8

Heißprägestation

Designate it:

2

Flat, plate-shaped workpiece

4

Open pores / porous surface structure of 6

6

Workpiece edge / edge profile from 2

6.2

Vertical section of Figure 6

6.4

S-shaped curved section of FIG. 6

6p

Edge profile of 6, processed in a previous step

8th

applicator roll

10

spatulas

12

spatulas

14

improving compound

16

Edge profile extension device (s) / profile counterpart (s)

16.2

Profile extension section of 16

16.4

Edge section of 16 / cover and reinforcement device / stop

18

approach towards

20

Joint between 16 and 6 or 16.4 and 6p

22

Adapter device from 16

24

Long swivel lever

24.2

Holding device for 16

26

linear guide

28

runner

30

feed cylinder

32

Short pivot lever

34

swing cylinders

36

Plastic veneer

38

pressboard

40

Semicircular groove

42

Semicircular indentation

44

Non-stick coating from 16

46

cleaning device

48

Profile counterpart changer

..H

Index for rear parts / components

..V

Index for front parts / components

α

Angles between 10 and 6

β

Angle between 16.2 and 16.4

A

line of sight

B

line of sight

D

Throughput direction

IA

compensation area

M

movement mechanism

PS

starting position

PE

end position

S1

Profilfrässtation

S2

Profile grinding station

S3

Application and hot filler station

S4

Profile grinding station

S5

painting station

S6

drying station

S7

grinding station

S8

Hot embossing station

Claims (33)

1. Method for the machining of substantially laminar or batten-shaped workpieces (2) composed in particular of wood materials or the like on at least one edge region encompassing the following steps:

   a) production of at least one substantially elongated edge profile (6) on the workpiece (2);

   b) application (8) of at least one improving compound (14) onto the edge profile (6); and

   c) smoothing (10, 12) of the improving compound (14);

   wherein

   d) immediately before or during application (8) and/or smoothing (10, 12) of the improving compound (14) the edge profile (6) is temporarily extended (6, 16, 16.2) at least at one end and the application (8) and/or smoothing (10, 12) of the improving compound (14) begins ahead of or on the temporarily extended edge profile (16, 16.2) and ends on or behind the temporarily extended edge profile (16, 16.2).
2. Method according to Claim 1, characterised in that

   e) during application (8) and/or smoothing (10, 12) of the improving compound (14) the edge profile (6) is temporarily extended (16v, 16h) both at a front and a rear end.
3. Method according to Claim 1 or 2, characterised in that

   f) at least one unmachined edge region or an edge profile (6p) of the workpiece (2) machined in a preceding work step which adjoins the machined edge profile (6) to be coated with the improving compound (14) is temporarily covered (16.4) and/or reinforced (16.4) during the temporary extension (16, 16.2, 16v, 16h) of the edge profile (6) and/or during the application (8) and/or smoothing (10, 12) of the improving compound (14).
4. Method according to one or more of the preceding claims, characterised in that

   g) the temporary edge profile extension (16, 16.2, 16v, 16h) is removed again after the application (8) and/or smoothing (10, 12) of the improving compound (14).
5. Method according to Claim 3, characterised in that

   h) the temporary coverage (16.4) and/or reinforcement (16.4) of the unmachined edge region or of the edge profile (6p) of the workpiece (2) already machined in a preceding work step is removed again after the application (8) and/or smoothing (10, 12) of the improving compound (14).
6. Method according to one or more of the preceding claims, characterised in that

   i) the temporarily extended edge profile (16, 16.2, 16v, 16h) is cleaned (46) of the applied improving compound (14) or the latter is removed again.
7. Method according to one or more of the preceding claims, characterised in that

   k) in order to machine a further edge profile (6) of the workpiece and/or to coat an edge profile (6p) already machined once with at least one further improving compound at least one of the work steps a) to i) is repeated at least once.
8. Method according to one or more of the preceding claims, characterised in that the machining of the workpiece (2) ensues in the form of continuous machining, the workpiece being moved in a predetermined direction of passage (D) and passing through one or more machining stations (S1 - S8).
9. Method according to Claim 8, characterised in that the temporary extension (16, 16.2, 16v, 16h) of the edge profile (6) takes place during the movement of the workpiece.
10. Method according to Claim 8 or 9, characterised in that the removal of the temporary coverage (16.4) and/or reinforcement (16.4) of the unmachined edge region or of the edge profile (6p) of the workpiece (2) already machined in a preceding work step ensues during the movement of the workpiece (2) after the application (8) and/or smoothing (10, 12) of the improving compound (14).
11. Method according to Claim 10, characterised in that the removal of the temporary edge profile extension (16, 16.2, 16v, 16h) takes place during the movement of the workpiece (2).
12. Device for the machining of substantially laminar or batten-shaped workpieces (2) composed in particular of wood materials or the like having at least one substantially elongated edge profile (6) onto which at least one improving compound (14) is applied (8) and then smoothed (10, 12) comprising at least one edge profile extension device (16, 16v, 16h) assigned to the workpiece (2) which possesses a profile extension section (16.2) whose profile shape substantially matches that of the edge profile (6) of the workpiece (2).
13. Device according to Claim 12, characterised in that the latter is designed as a continuous machining device.
14. Device according to one of Claims 12 or 13, characterised in that at least one pair of edge profile extension devices (16v, 16h) is provided of which one (16v) is assigned to a front end and the other (16h) to a rear end of the elongated edge profile (6) of the workpiece (2).
15. Device according to one of Claims 12 to 14, characterised in that at least one covering and/or reinforcing device (16.4) is provided for the temporary coverage and/or reinforcement of at least one unmachined edge region or an edge profile (6p) of the workpiece (2) already machined in a preceding work step which adjoins the machined edge profile (6) to be coated with the improving compound (14).
16. Device according to Claim 15, characterised in that the covering and/or reinforcing device (16.4) is integrated into the edge profile extension device (16).
17. Device according to Claim 15 or 16, characterised in that the covering and/or reinforcing device (16.4) possesses a profile shape which is of complementary construction to the edge profile shape (6) of the workpiece (2) and/or to the profile shape of the profile extension section (16.2).
18. Device according to one or more of Claims 12 to 17, characterised in that the edge profile extension device (16) comprises at least one contact surface (16.4) capable of making contact with the workpiece (2) which has a shape complementary to the shape of the edge profile (6) and/or to the shape of the profile extension section (16.2) and extends at an angle (β) to the profile extension section (16.2).
19. Device according to Claim 18, characterised in that the contact section is constructed separately from the edge profile extension device (16).
20. Device according to Claim 18 or 19, characterised in that the contact section (16.4) has a profile shape which is of complementary construction to the edge profile shape (6) of the workpiece (2) and/or to the profile shape of the profile extension section (16.2).
21. Device according to one or more of Claims 12 to 20, characterised in that the edge profile extension device (16, 16v, 16h) has at least one adapter device (22) for establishing a detachable connection to a holding device (24.2) assigned to the edge profile extension device (16, 16v, 16h).
22. Device according to one or more of Claims 12 to 22, characterised in that the edge profile extension device (16, 16v, 16h) is arranged in movable manner.
23. Device according to Claim 22, characterised in that the edge profile extension device (16, 16v, 16h) is arranged movably at least along the direction of passage (D) of the workpiece and can be moved along (M, 28, 30) with the workpiece (2) at least over a partial section (PS - PE) of the continuous path.
24. Device according to Claim 22 or 23, characterised in that a movement mechanism (M, 28, 30) is provided for the back and forth movement of the edge profile extension device (16, 16v, 16h) over the partial section (PS - PE) of the continuous path.
25. Device according to one or more of Claims 12 to 24, characterised in that at least one fixing mechanism (24, 34) is provided for the detachable fixing of the edge profile extension device (16, 16v, 16h) on the workpiece (2).
26. Device according to Claim 25, characterised in that the fixing mechanism (24, 32, 34) is of claw-like or pincer-like construction and in the closed state encloses the workpiece (2) on at least two sides.
27. Device according to Claim 25 or 26, characterised in that the fixing mechanism (24, 32, 34) has at least one front fixing member (24v) which closes counter to the direction of passage (D) and releases the fixing in the direction of passage (D).
28. Device according to one or more of Claims 25 to 27, characterised in that the fixing mechanism (24, 32, 34) has at least one rear fixing member (24h) which closes in the direction of passage (D) and releases the fixing counter to the direction of passage (D).
29. Device according to one or more of Claims 25 to 28, characterised in that the fixing mechanism (24, 32, 34) is arranged on the movement mechanism (M, 28, 30) and can be moved along with the latter.
30. Device according to one or more of Claims 12 to 29, characterised in that the edge profile extension device (16v, 16h) is arranged to be travelled over by the moving workpiece (2).
31. Device according to one or more of Claims 12 to 30, characterised in that the latter possesses at least one change-over device (48) for changing the edge profile extension device (16, 16v, 16h) for another.
32. Device according to one or more of Claims 12 to 31, characterised in that the edge profile extension device (16, 16.2) and/or the covering and/or reinforcing device (16.4) has a non-stick coating (44).
33. Device according to one or more of Claims 12 to 32, characterised in that the latter comprises at least one cleaning device (46) assigned to the edge profile extension device (16, 16v, 16h).

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