EP2132001B1 - Method for grinding and polishing wooden materials - Google Patents

Method for grinding and polishing wooden materials Download PDF

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Publication number
EP2132001B1
EP2132001B1 EP08717057.7A EP08717057A EP2132001B1 EP 2132001 B1 EP2132001 B1 EP 2132001B1 EP 08717057 A EP08717057 A EP 08717057A EP 2132001 B1 EP2132001 B1 EP 2132001B1
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EP
European Patent Office
Prior art keywords
blasting
jet
processed
edge
fact
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP08717057.7A
Other languages
German (de)
French (fr)
Other versions
EP2132001A2 (en
Inventor
Karl-Heinz Ullerich
Gerhard Brendel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TGC Technologie- Beteiligungsgesellschaft mbH
Original Assignee
TGC Technologie- Beteiligungsgesellschaft mbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE200710009020 external-priority patent/DE102007009020A1/en
Application filed by TGC Technologie- Beteiligungsgesellschaft mbH filed Critical TGC Technologie- Beteiligungsgesellschaft mbH
Priority to PL08717057T priority Critical patent/PL2132001T3/en
Publication of EP2132001A2 publication Critical patent/EP2132001A2/en
Application granted granted Critical
Publication of EP2132001B1 publication Critical patent/EP2132001B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C11/00—Selection of abrasive materials or additives for abrasive blasts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N7/00—After-treatment, e.g. reducing swelling or shrinkage, surfacing; Protecting the edges of boards against access of humidity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/06—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wood
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]

Definitions

  • the present invention relates to a method for processing components made of wood materials according to the preamble of claim 1.
  • Wood-based materials find a variety of applications, especially in the furniture industry, for example.
  • the wood materials used there are usually coated or painted, the term coating is used here as a generic term, which includes the painting, but also powder coating and the like. By painting or coating, the wood materials should receive an aesthetically pleasing surface.
  • the requirements have risen more and more in recent years, since the design of the furniture, for example, by high-gloss surfaces much higher demands on the coating or painting. Accordingly, the methods for producing such furniture are very complex, since a variety of individual process steps, such as grinding the wood surface, intermediate grinding of already partially painted or coated surfaces and final polishing of the finished coated or painted surfaces are required. In addition, under certain circumstances, several coating or paint layers are required, so that overall results in a very complex machining process.
  • MDF medium density fiberboard
  • abrasive such as corundum or similar abrasive elements on a support, such as a sandpaper or a grinding wheel, are arranged to rotate by means of the carrier or any other Movement forms to be moved over the surface. Due to the contact pressure exerted by the carrier, the abrasive agents cause a material removal on the surface of the component to be treated. With abrasive of a suitable grain size, this results in a fine, smooth and flat surface can be produced.
  • polishing agents again comprise abrasive particles or powders contained in an aid such as a liquid or pasty agent and by means of flexible supports such as cloth or felt disks or the like. Be moved over the surface, so that again, in turn, a corresponding material removal can be achieved by the abrasive means.
  • Such methods are particularly complex because, in particular, for the grinding or polishing steps, the corresponding component to be machined is defined in relation to the grinding or polishing process.
  • Polishing device must be arranged, which usually involves a complicated handling of the corresponding component, since a change of holder compared to the coating or Lackierbearbeitung is required.
  • the component usually has to be removed from a holder used for coating or painting and installed in a suitable for the grinding or polishing operations holder and removed accordingly after grinding or polishing and installed in another holder, resulting in a very complex handling leads. Consequently, there are also hardly any continuous machining operations involving coating and painting operations as well as grinding and polishing operations, e.g. in a so-called in-line system, possible.
  • Components made of wood materials and preferably MDF materials are made possible.
  • the corresponding method should be easy to carry out or build up and provide good results in terms of surface quality.
  • the inventors have recognized that the above-mentioned problem can be solved by employing a blasting method instead of the previously known grinding and polishing methods in which a defined contact of the abrasive means with the surface to be processed is set by means of grinding wheels or polishing plates. wherein the blasting agent to be irradiated impinge on the surface to be processed at a shallow angle.
  • the tips of the surface are removed in the same manner as in the known mechanical polishing and grinding processes and thus there is a leveling and smoothing.
  • protruding fibers are broken off by the impinging blasting means, so that no disturbing elevations are left.
  • the method according to the invention can be used particularly advantageously in connection with methods in which components are held in a single holder or holder in which they are both coated and dried and now also prepared, that is ground, or post-processed, ie polished.
  • any intermediate steps are due to the present invention in a simple manner feasible.
  • the corresponding component in the inventive method in the coating or painting of MDF boards or other wood materials, the corresponding component must be placed only in the beginning in a receptacle or holder and can then remain until final polishing in this recording or holder and all processing steps, such Priming with a primer, grinding, coating or painting in various coating steps with intermediate grinding and the like. Go through and final polishing. This leads to a very effective and efficient way of working.
  • the abrasive jet is directed onto the surface at an angle of incidence ⁇ between the surface to be treated and the main jet direction of at most 20 ° and more preferably at most 10 °. Especially angles in the range between 10 ° and 20 ° and especially between 10 ° and 15 ° have proven to be very beneficial. Since a corresponding beam from a jet nozzle or the like is usually diverged, the angle relative to the main jet direction, which represents a center line of the overall beam, is seen.
  • abrasive jet In a treatment of a component, such as a wood fiber board or MDF board, it is advantageous if, for example, all surfaces are to be treated in approximately the same quality, to direct the blasting abrasive beam on the surface to be processed so that not adjacent to the surface surfaces the blasting means are struck or do not strike the adjacent surfaces with a greater angle of incidence than the angle of incidence which the main jet occupies with the surface to be processed. This ensures that the adjacent surfaces are not damaged or worn away by the blasting media, which could happen if the blasting agents hit the adjacent surfaces at too great an angle of incidence. In certain cases, however, this may just be desired if, for example, a material compaction is to be effected on narrow end faces or corresponding edges. In this case, the abrasive jet can be easily passed over the edges or edges.
  • the surface to be machined with certain blasting abrasive rays can not be completely processed, as in the edge region of processing surface, so for example in a region in which an adjacent surface is disposed on one edge, which assigns to the Strahlstoffstrahl, that has a surface normal, which is at least a portion of the Strahlstofftechnisch vectorially opposite directed.
  • This entails the risk that this adjacent surface could be damaged by the jet of abrasive or undesirably processed.
  • a second blasting agent jet which has an opposite main jet direction, but impinges on the surface to be processed in terms of amount with the same or a similar angle of incidence.
  • This beam then necessarily impinges on the adjacent surface in the region in which the adjacent surface collides with the surface to be processed, for example in the region of an edge, since the adjacent surface lies in the beam shadow.
  • At least two blasting agent jets can be provided for each surface to be machined, which are aligned, for example, parallel to a longitudinal edge.
  • the longitudinal edge in the edge region no problems with adjacent surfaces, so that here a machining of the surface to be machined to the edge, so beyond the edge, can be made.
  • edges of the surface to be machined In the transverse to the beam direction edges of the surface to be machined, it depends on whether the edge adjacent to the adjacent surface is located in the direction of or near the blasting agent source or away from it.
  • the remote adjacent surface is in the shaded area of the blasting agent beam, so that here too processing can be done up to the edge.
  • Concerning. the blasting agent source facing edge can be maintained a safety distance, so that the processing of the surface to be machined takes place only in a spaced area.
  • grains or beads or other particles of any suitable material in particular organic and inorganic materials, such as natural products, in particular nutshells, preferably walnut shells, glass, plastic, metal, especially metal alloys, preferably steel or aluminum, sand, gravel, ceramics, oxides , Nitrides, carbides, diamond or diamond-like agents, quartz, corundum, silicon, carbide, boron nitride, dry ice, shale, whiting, tin ash, cerium oxide, or combinations thereof.
  • abrasive agents which are also used as abrasives or polishing agents.
  • the particle grains or beads may have a wide variety of sizes, and not only can a particle size distribution be present within the abrasive used, but in principle abrasive materials having different average particle sizes can be used.
  • the corresponding purpose plays a role. Grinding inserts usually use blasting agents with larger average particles or grain sizes, while in polishing applications, powders or granules with a smaller average grain size are used.
  • the blasting agent jet can be produced by a wide variety of technologies, in particular by blast wheel, compressed air, jet turbines and / or injector blasting systems.
  • the jet may comprise compressed air and / or other gases and / or liquids, in particular water or other pasty substances in addition to the abrasive agents.
  • a jet nozzle in the manner of a Venturi nozzle or a Venturi injector can be used comparable to a water jet pump in which laterally supplied abrasive agents are entrained in the stream of compressed air due to the outflow of compressed air or compressed air through a nozzle.
  • compressed air or compressed air other gases or liquids, such as water, can also be used.
  • the jet can be moved beyond the edges of the surface to be processed or, conversely, the component, so that, for example, end faces of a plate, which is usually an intersection At a larger angle incident blasting agents are additionally compressed.
  • FIG. 1 shows in a purely schematic side view of a machined component, such as an MDF board 1, which is received in a holder, such as clamping device 2 and held.
  • a machined component such as an MDF board 1
  • the holder 2 can allow a suspended receiving an MDF plate 1, so that the MDF plate 1 can be moved on a rail system by a system.
  • the MDF board can be hung on hooks.
  • a plurality of jet nozzles 3 are arranged, which radiate at a shallow angle a a beam 9, the blasting agent, on the surface of the component 1.
  • FIG. 1 two opposite jet nozzles 3 are shown, which direct the beam 9 each directed towards the component 1.
  • These nozzles 3 can alternately direct rays 9 with opposite jet direction on the component, so that excess wood fibers are moved back and forth so that they break off.
  • a plurality of jet nozzles can be provided side by side with parallel or at least the same direction of rays 9, as for example in FIG. 3 can be seen in a plan view.
  • a plurality of jet arrangements 3 can be provided in particular equidistantly around the component 1.
  • the jet nozzles 3 are arranged movably, so that at least one type of movement is possible.
  • the jet nozzles are movable in different directions or about different axes of rotation, so that a variable use of the jet 9 with respect to the surface of the component is possible.
  • the jet nozzles 3 may first be pivotable about an axis of rotation parallel to the surface to be machined of the component 1, so that the beam or impact angle ⁇ in a certain range, preferably 5 ° to 20 ° is variably adjustable.
  • the jet nozzles 3 can be moved with respect to the component 1, on the one hand parallel to the edges of the component 1 or perpendicular thereto.
  • a pivoting or rotation about an axis of rotation perpendicular to the surface to be machined, so that the angle of incidence ⁇ , as in Fig. 3 to see, is changeable.
  • a movement of the jet nozzles 3 is possible in such a way that the jet can be moved over the entire surface to be processed.
  • the beam 9 or the component 1 can be moved so that the beam 9 not only the entire surface of the component 1 strikes, but also adjacent end faces 19, since here by the incident beam simultaneously a compression of the Surface material takes place, which is particularly advantageous in cut plates on the cut sides.
  • the jet nozzles 3 of the embodiment of the Fig. 1 it is compressed air or compressed air nozzles 3, in which in a compressed air product device 8 generated compressed air, which is supplied via a supply line 7 to the nozzle assembly 3, is output via the nozzle 3. Since the jet nozzle 3 has provided a lateral feed 4 in the area in front of the nozzle outlet, blasting agents are entrained in the compressed air jet from the blasting agent container 5, which are supplied to the lateral feed 4 via a feed line 6, and with the compressed air or the compressed air in the Beam 9 passed to the surface of the component 1.
  • the compressed air which with a pressure of up to 10 bar, usually 2 to 5 Bar is placed on the nozzle, jet speeds of about 10 m / s are set. Depending on the selected blasting medium speeds up to 90 m / s are conceivable.
  • the blasting means impinging on the surface of the component 1 at this speed cause wood fibers, in particular MDF boards, to be broken off from the surface of protruding wood fibers in a component 1, so that a smooth, ground surface results.
  • the blasting at a shallow angle causes irregularities such as tips and the like to also be broken off and leveled, so that here too a corresponding smooth surface with few unevennesses and roughnesses is produced.
  • the corresponding blasting agents can be designed differently. For coarser machining with rougher and uneven surfaces, blasting agents with a larger grain diameter are used than in polishing processes in which correspondingly fine blasting abrasives are used.
  • FIG. 2 shows a purely schematic side view of a second embodiment of a corresponding device for the treatment of components, in particular wooden components at a flat angle of incidence.
  • the embodiment of the FIG. 2 is different from the one of FIG. 1 in that a different beam arrangement is used, while the holding device for the component 1 is identical and thus has an identical reference number to that of the exemplary embodiment of FIG. 1 ,
  • the beam arrangement 12 of FIG. 2 is a blast wheel, which has a lateral suction 10, 13 are sucked through a supply line 11 from a blasting agent reservoir blasting agent, which are then discharged via the impeller 12 perpendicular to the suction.
  • a support means such as compressed air in the embodiment of the Fig. 1 be dispensed with, since the blasting agent 12 can be applied to the surface of the component 1 by the blast wheel 12 without additional auxiliary material.
  • a mixture of a blasting agent with an adjuvant such as a liquid or a pasty carrier, may be provided in the blasting agent reservoir 13.
  • FIG. 3 shows a top view of the arrangement of the beam assemblies 3 and 12 about the component to be machined. 1
  • two jet assemblies 3 and 12 are provided on two adjacent sides of an MDF plate 1, which are arranged perpendicular to each other, which can irradiate the surfaces of the component 1 in different angles of incidence ß.
  • the angle of incidence ⁇ is defined, for example, as the angle of the main beam direction of the beam 9 relative to the side normal.
  • the angle of incidence ⁇ can, for example, be varied within a range of -45 ° to + 45 °.
  • FIG. 4 in the diagrams a) to c) possible forms of blasting agents darg Congress.
  • spherical shapes panel b)
  • the grains are characterized by sharp, edged surfaces, while the spherical shapes have a smooth round surface.
  • metal blasting agents e.g. Metal chips, wire sections and the like. And oxides, carbides, nitrides, corundum, ceramics and the like.
  • Ball shapes are commonly found in glass, plastic and the like, although of course any suitable material may be in one form or another.
  • blasting agents can be used in which e.g. small pieces of cloth or felt, ie flexible elements with corresponding abrasive components, e.g. Grains or beads are wetted. This is possible, for example, if appropriate fabric or felt particles are impregnated with suspensions of abrasive elements and corresponding liquid or pasty excipients.
  • FIGS. 5 and 6 show in the partial images the effect of the method according to the invention on the one hand for wood surfaces ( Fig. 5 ) as well as coated or painted surfaces ( Fig. 6 ).
  • FIG. 5 shown schematically. After irradiation at a shallow angle, the wood fibers 14 are broken off, so that only wood fiber stumps 15 are present on the surface of the component 1, which, however, no longer impair the smooth and even surface.
  • FIG. 6 can be seen, modified by the beam treatment at a flat angle of impact so that the mountains 18 of the coating layer 16 are planarized on the component 1 (see drawing b) FIG. 6 ).
  • FIG. 7 schematically another treatment device 100 for grinding and / or polishing a component 200 is shown.
  • the component 200 is transported along a transport path T in a transport direction, which is indicated by an arrow.
  • the different surfaces of the component 200 which is formed, for example, as a flat element with edges, partly successively treated, sometimes at the same time.
  • a first station 103 the front end face at the front edge of the component with the jet S from a jet turbine or Druckstrahldüse 104, which applies a blasting agent at an angle ⁇ between 10 ° and 20 ° on the surface treated.
  • the rear end side is treated at the rear edge of the component 200 with a jet S of another jet turbine or pressure jet nozzle 5, wherein the blasting agent also impinges on the rear surface at an angle ⁇ between 10 ° and 20 °.
  • the rays S of the beam arrangements 104 and 105 are directed only to the region which lies on the side facing away from the line predetermined by the transport direction with respect to the beam arrangements. Accordingly, mirror-symmetrical to the transport line further beam arrangements can be provided (not shown).
  • the upper edge and the lower edge of the component 2 are treated with blasting abrasive jets, the of jet turbines or pressure jet nozzles 106 and 107 or 106 'and 107', respectively.
  • blasting abrasive jets the of jet turbines or pressure jet nozzles 106 and 107 or 106 'and 107', respectively.
  • Shown here are also the previously mentioned mirror-symmetrically arranged beam arrangements 106 'and 107', which generate beams which have opposite beam directions to those of the beam arrangements 106 and 107, but impinge in magnitude at the same angle ⁇ .
  • the machined area lies on the side of the beam arrangements 106 and 107 relative to the main transport plane T '. Accordingly, blasting material impinges on the respective surface of the component 200 to be treated at an angle ⁇ between 10 ° and 20 °.
  • FIG. 8 shows that the component 200 is formed substantially as a flat plate. It moves along the transport direction T, thereby defining a main transport plane T 'determined by its central axis.
  • the main transport plane T 'can during transport as shown in the embodiment, be substantially perpendicular, but in principle also transversely or horizontally aligned.
  • a further treatment step 108 (see Fig. 7 ) Sub-areas of the surface surfaces, which are arranged parallel to the main transport direction T 'and parallel to the transport direction T treated.
  • a jet turbine, pressure jet nozzle or a centrifugal wheel 9 brings a blasting agent at an angle ⁇ between 10 ° and 20 ° to the surface to be treated.
  • the parallel to the transport plane component of the beam S is aligned in the direction of transport.
  • the surface is polished or polished away from the leading edge to an area approximately in the center of the surface to be treated.
  • the remaining area of the surface is treated in a subsequent treatment step 110, with a jet turbine, pressure jet nozzle or a centrifugal wheel 111 applying abrasive material again at an angle ⁇ between 10 ° and 20 ° to the surface.
  • the component of the jet S of the blasting medium parallel to the transport direction is oriented counter to the transport direction.
  • the system can, in particular the process stations 108 and 110 regarding, be equipped bilaterally symmetrical to the transport direction T with blasting devices, so that both surfaces of the component 2 can be treated with high quality.
  • the process stations 108 and 110 may also be integrated into a single process station.
  • jet devices 9 and 11 with beam direction S in the direction or opposite to the transport direction T is prevented that in the treatment of the surface surfaces blasting agent with strongly deviating from the irradiation direction ⁇ angles impinges on one of the surfaces or edges to be treated and to roast them.
  • FIG. 9 shows a plant concept 112, in which prevents blasting agents from the blasting machine 113 exit from the system 112.
  • the plant concept 112 has an inlet lock 114, a blasting installation 113, in which the treatment of components arranged on load crosspieces 200 takes place, and an outlet lock 115.
  • the inlet lock 114 and the outlet lock 115 are formed substantially the same. They each have an input blocking element 116 and an output blocking element 117, which can be selectively opened or closed.
  • the elements 116 and 117 may be formed, for example, as rubber aprons or fins, which absorb the energy of the blasting material and prevent penetration of the blasting material when the element is closed.
  • the elements 116 and 117 can be opened and closed synchronously so that always at least one of the elements 116 or 117 is closed. In this way - based on a lock concept - a component 200 can be transported with the input blocking element 116 open and the output blocking element 117 closed into the inlet lock 114 or the outlet lock 115 between the blocking elements 116 and 117. Subsequently, both blocking elements 116 and 117 are closed. Thereafter, the output blocking element 117 is opened when the input blocking element 116 is closed so that the component 200 can be transported out of the inlet lock 114 or the outlet lock 115.
  • the blasting material emerging from the blasting system 113 thus always strikes at least one closed blocking element 116 and / or 117 and can not leave the system.
  • the output blocking elements 117 and input blocking elements 116 are arranged on a revolving endless belt so that they perform the corresponding closing and opening operations in the correct cycle with the speed of movement of the component 200 to be processed.
  • other opening and closing elements are conceivable.
  • the FIG. 10 shows a cuboid having a main surface F1 and the end faces F2 and F3. With respect to these areas F1 to F3, the beams 300 to 305 are shown, which process the respective areas.
  • the surface F1 is here machined by the beams 300 and 301 which are formed parallel to the longitudinal edges between the surfaces F1 and F2 and the corresponding bottom surface. Concerning. For these edges, the processing beam 300 as well as the processing beam 301 can process the surface F1 up to the edge region, since blasting agents projecting beyond the edge do not hit the surface F2 arranged perpendicularly to the surface F1 or the bottom surface correspondingly opposite on the other side.
  • the situation is different with respect to the edge arranged transversely to the beam direction 300 or 301 between the surfaces F1 and F3 or the corresponding edge on the opposite side.
  • the beam 300 with respect to the edge between the surfaces F1 and F3 is not critical, since the surface F3 lies in the shading area.
  • the surface F3 opposite the same applies to the beam 301.
  • at this edge of the beam 300 is critical, since excess, the surface F1 not meeting jet particles would impinge at too large an angle on the adjacent surface and could cause damage there , Only in the event that a compression of the corresponding end face is planned, a corresponding impact of the beam particles can be provided with a large impact angle.
  • the impact area for the beam 300 is spaced from the corresponding edge and, respectively, the dashed line 307 for the beam 301 is spaced from the edge between F1 and F3.
  • the beams 302 and 303 or 304 and 305 and dashed lines shown there which mark the end of the impact area.
  • the rays 300 to 303 can in a transport direction According to the arrow T, the beam arrangements are set stationary, as can be defined by the tuned to the movement of the component starting and stopping the irradiation of the radiation area.
  • the situation is different for the radiation arrangements for the beams 304 and 305, in which the beam arrangements have to be moved accordingly or the beam itself covers a large area.
  • the beam arrangements responsible for the beams 304 and 305 can also be prepared in such a way that they are moved along with the component 200 in the transport direction T over a specific time, in order to ensure a sufficiently long irradiation.

Description

HINTERGRUND DER ERFINDUNGBACKGROUND OF THE INVENTION GEBIET DER ERFINDUNGFIELD OF THE INVENTION

Die vorliegende Erfindung betrifft ein Verfahren zur Bearbeitung von Bauteilen aus Holz-werkstoffen nach dem Oberbegriff des Anspruchs 1.The present invention relates to a method for processing components made of wood materials according to the preamble of claim 1.

STAND DER TECHNIKSTATE OF THE ART

Holzwerkstoffe finden vielfältige Anwendungsmöglichkeiten, insbesondere beispielsweise in der Möbelindustrie. Die dort eingesetzten Holzwerkstoffe werden üblicherweise beschichtet oder lackiert, wobei der Begriff Beschichtung hier als Oberbegriff Verwendung findet, welcher das Lackieren, aber auch Pulverbeschichtung und dgl. mit einschließt. Durch das Lackieren oder Beschichten sollen die Holzwerkstoffe eine ästhetisch ansprechende Oberfläche erhalten.Wood-based materials find a variety of applications, especially in the furniture industry, for example. The wood materials used there are usually coated or painted, the term coating is used here as a generic term, which includes the painting, but also powder coating and the like. By painting or coating, the wood materials should receive an aesthetically pleasing surface.

Hierbei sind in den letzen Jahren die Anforderungen immer stärker gestiegen, da die Gestaltung der Möbel beispielsweise durch hochglänzende Oberflächen sehr viel höhere Anforderungen an die Beschichtung oder Lackierung stellt. Entsprechend sind die Verfahren zur Herstellung derartiger Möbel sehr aufwändig, da vielfältige einzelne Verfahrensschritte, wie Schleifen der Holzoberfläche, Zwischenschleifen von bereits teilweise lackierten oder beschichteten Flächen und Endpolieren der fertig beschichteten oder lackierten Flächen erforderlich sind. Darüber hinaus sind unter Umständen mehrere Beschichtungs- oder Lackschichten erforderlich, so dass sich insgesamt ein sehr aufwändiger Bearbeitungsprozess ergibt.Here, the requirements have risen more and more in recent years, since the design of the furniture, for example, by high-gloss surfaces much higher demands on the coating or painting. Accordingly, the methods for producing such furniture are very complex, since a variety of individual process steps, such as grinding the wood surface, intermediate grinding of already partially painted or coated surfaces and final polishing of the finished coated or painted surfaces are required. In addition, under certain circumstances, several coating or paint layers are required, so that overall results in a very complex machining process.

Dies gilt auch für die in letzter Zeit sehr häufig eingesetzten Holzfaserwerkstoffe, wie Medium Density Fibre-Platten (MDF-Platten), die ebenfalls einer entsprechenden Vorbehandlung unterzogen werden müssen, um beispielsweise vor dem Beschichten oder Lackieren aus der Oberflächen hervorstehende Fasern zu entfernen.This also applies to the recently used wood fiber materials, such as medium density fiberboard (MDF), which must also be subjected to a corresponding pre-treatment, for example, to remove from the surfaces protruding fibers before coating or painting.

Nach dem derzeitigen Stand der Technik wird dies üblicherweise durch entsprechende Schleifvorgänge durchgeführt, bei denen Schleifmittel, wie beispielsweise Korund oder ähnlich abrasive Elemente auf einem Träger, wie beispielsweise einem Schleifpapier oder einer Schleifscheibe, angeordnet sind, um mittels dem Träger in rotierender Bewegung oder anderen beliebigen Bewegungsformen über die Oberfläche bewegt zu werden. Durch den mittels der Träger ausgeübten Anpressdruck verursachen die abrasiven Mittel einen Materialabtrag auf der Oberfläche des zu behandelnden Bauteils. Mit Schleifmittel einer geeigneten Korngröße führt dies dazu, dass eine feine, glatte und ebene Oberfläche erzeugt werden kann.In the current state of the art, this is usually done by appropriate grinding operations, in which abrasive, such as corundum or similar abrasive elements on a support, such as a sandpaper or a grinding wheel, are arranged to rotate by means of the carrier or any other Movement forms to be moved over the surface. Due to the contact pressure exerted by the carrier, the abrasive agents cause a material removal on the surface of the component to be treated. With abrasive of a suitable grain size, this results in a fine, smooth and flat surface can be produced.

In ähnlicher Weise werden lackierte bzw. beschichtete Oberflächen mit entsprechenden Poliermitteln bearbeitet, bei denen die Poliermittel wiederum abrasive Teilchen oder Pulver aufweisen, die in einem Hilfsmittel, wie einer Flüssigkeit oder einem pastösen Mittel aufgenommen sind, und mittels flexibler Träger, wie Stoff-, Filzscheiben oder dgl. über die Oberfläche bewegt werden, so dass ebenfalls wiederum ein entsprechender Materialabtrag durch die abrasiven Mittel erzielt werden kann.Similarly, painted surfaces are treated with respective polishing agents in which the polishing agents again comprise abrasive particles or powders contained in an aid such as a liquid or pasty agent and by means of flexible supports such as cloth or felt disks or the like. Be moved over the surface, so that again, in turn, a corresponding material removal can be achieved by the abrasive means.

Derartige Verfahren sind insbesondere deshalb sehr aufwändig, weil für die Schleif- bzw. Polierschritte das entsprechende zu bearbeitende Bauteil definiert in Bezug auf die Schleif-bzw. Poliervorrichtung angeordnet werden muss, was meist eine aufwändige Handhabung des entsprechenden Bauteils mit sich bringt, da ein Halterwechsel im Vergleich zu der Beschichtungs- oder Lackierbearbeitung erforderlich ist. Das Bauteil muss üblicherweise aus einer für die Beschichtung oder Lackierung verwendeten Halterung ausgebaut und in einer für die Schleif- oder Poliervorgänge geeignete Halterung eingebaut und nach dem Schleifen bzw. Polieren entsprechend wieder ausgebaut und in eine andere Halterung eingebaut werden, was zu einer sehr aufwändigen Handhabung führt. Folglich sind auch kaum kontinuierliche Bearbeitungsvorgänge, die Beschichtungs- und Lackiervorgänge sowie Schleif- und Poliervorgänge einschließen, z.B. in einer so genannten in-line-Anlage, möglich.Such methods are particularly complex because, in particular, for the grinding or polishing steps, the corresponding component to be machined is defined in relation to the grinding or polishing process. Polishing device must be arranged, which usually involves a complicated handling of the corresponding component, since a change of holder compared to the coating or Lackierbearbeitung is required. The component usually has to be removed from a holder used for coating or painting and installed in a suitable for the grinding or polishing operations holder and removed accordingly after grinding or polishing and installed in another holder, resulting in a very complex handling leads. Consequently, there are also hardly any continuous machining operations involving coating and painting operations as well as grinding and polishing operations, e.g. in a so-called in-line system, possible.

Dokument WO 2006-097133 beschreibt ein Verfahren zur Bearbeitung von Bauteilen u.a. von Holzsstrukturen nach dem Oberbegriff des Anspruchs 1.document WO 2006-097133 describes a method for machining components, inter alia, of wood structures according to the preamble of claim 1.

OFFENBARUNG DER ERFINDUNGDISCLOSURE OF THE INVENTION AUFGABE DER ERFINDUNGOBJECT OF THE INVENTION

Es ist deshalb Aufgabe der vorliegenden Erfindung ein Verfahren bereitzustellen, mit dem in einfacher Weise Schleif- und/oder Polierschritte bei der Bearbeitung von Oberflächen vonIt is therefore an object of the present invention to provide a method with which in a simple manner grinding and / or polishing steps in the processing of surfaces of

Bauteilen aus Holzwerkstoffen und vorzugsweise MDF-Werkstoffen ermöglicht werden. Das entsprechende Verfahren soll einfach durchführbar bzw. aufgebaut sein und gute Ergebnisse hinsichtlich der Oberflächengüte liefern.Components made of wood materials and preferably MDF materials are made possible. The corresponding method should be easy to carry out or build up and provide good results in terms of surface quality.

TECHNISCHE LÖSUNGTECHNICAL SOLUTION

Diese Aufgabe wird gelöst durch ein Verfahren mit den Merkmalen des Anspruchs 1. Vorteilhafte Ausgestaltungen sind Gegenstand der abhängigen Ansprüche.This object is achieved by a method having the features of claim 1. Advantageous embodiments are the subject of the dependent claims.

Die Erfinder haben erkannt, dass das oben genannte Problem dadurch gelöst werden kann, dass anstelle der bisher bekannten Schleif- und Polierverfahren bei denen mittels Schleifscheiben oder Polierplatten ein definierter Kontakt der abrasiven Mittel mit der zu bearbeitenden Oberfläche eingestellt wird, ein Strahlverfahren angewandt werden kann, wobei die einzustrahlenden Strahlmittel unter einem flachen Winkel auf die zu bearbeitende Oberfläche auftreffen. Durch diese Strahlanwendung werden in gleicher Weise wie bei den bekannten mechanischen Polier- und Schleifverfahren die Spitzen der Oberfläche abgetragen und es kommt somit zu einer Einebnung und Glättung. Insbesondere bei Holzwerkstoffen werden hervorstehende Fasern durch die auftreffenden Strahlmittel abgebrochen, so dass keine störenden Erhebungen mehr vorhanden sind.The inventors have recognized that the above-mentioned problem can be solved by employing a blasting method instead of the previously known grinding and polishing methods in which a defined contact of the abrasive means with the surface to be processed is set by means of grinding wheels or polishing plates. wherein the blasting agent to be irradiated impinge on the surface to be processed at a shallow angle. By this beam application, the tips of the surface are removed in the same manner as in the known mechanical polishing and grinding processes and thus there is a leveling and smoothing. Particularly in the case of wood-based materials, protruding fibers are broken off by the impinging blasting means, so that no disturbing elevations are left.

Aufgrund dieses Verfahrens ist es nicht mehr erforderlich das zu bearbeitende Werkstück bzw. Bauteil definiert zu den Auflageflächen der Polier- oder Schleifvorrichtungen anzuordnen und somit sind kurze Prozesszeiten aufgrund eingesparter Einspannungsvorgänge gewährleistet. Insbesondere im Zusammenhang mit Pulverbeschichtungsverfahren, aber auch anderen Lackierverfahren, bei denen das zu bearbeitenden Werkstück in einer Aufnahme an den Beschichtungs- oder Lackiervorrichtungen vorbei bewegt wird, um kontinuierlich beschichtet oder lackiert zu werden, sind keine aufwändigen Umspannarbeiten bezüglich des Bauteils notwendig. Insbesondere bei Verfahren bei denen auch die Trocknungs- und/oder Aushärteschritte kontinuierlich ablaufen und das entsprechende Bauteil in den gleichen Aufnahmen oder Halterungen aufgenommen ist, wie bei den Beschichtungs- und/oder Lackier-verfahren, ist ein erheblicher Gewinn an Prozesseffektivität gewährleistet. So kann das erfindungsgemäße Verfahren vor allem vorteilhaft im Zusammenhang mit Verfahren eingesetzt werden, bei denen Bauteile in einer einzigen Halterung oder Aufnahme gehalten sind, in der sie sowohl beschichtet als auch getrocknet und nunmehr auch vorbereitet, also geschliffen, oder nachbereitet, d.h. poliert werden können. Auch jegliche Zwischenschritte sind aufgrund der vorliegenden Erfindung in einfacher Weise realisierbar. Somit muss bei dem erfindungsgemäßen Verfahren bei der Beschichtung oder Lackierung von beispielsweise MDF-Platten oder sonstigen Holzwerkstoffen das entsprechende Bauteil nur zu Beginn in einer Aufnahme oder Halterung angeordnet werden und kann dann bis zur Endpolitur in dieser Aufnahme bzw. Halterung verbleiben und sämtliche Bearbeitungsschritte, wie Grundieren mit einem Primer, Schleifen, Beschichten bzw. Lackieren in verschiedenen Beschichtungsschritten mit Zwischenschleifen und dgl. sowie Endpolieren durchlaufen. Dies führt zu einer sehr effektiven und effizienten Arbeitsweise.Due to this method, it is no longer necessary to arrange the workpiece or component to be machined defined to the bearing surfaces of the polishing or grinding devices and thus short process times are ensured due to the saved clamping operations. In particular in connection with powder coating methods, but also other painting methods in which the workpiece to be machined is moved past the coating or painting devices in a receptacle in order to be continuously coated or painted, no complicated transformer work with respect to the component is necessary. In particular, in processes in which the drying and / or curing steps proceed continuously and the corresponding component is received in the same receptacles or holders, as in the coating and / or painting process, a significant gain in process efficiency is ensured. Thus, the method according to the invention can be used particularly advantageously in connection with methods in which components are held in a single holder or holder in which they are both coated and dried and now also prepared, that is ground, or post-processed, ie polished. Also, any intermediate steps are due to the present invention in a simple manner feasible. Thus, in the inventive method in the coating or painting of MDF boards or other wood materials, the corresponding component must be placed only in the beginning in a receptacle or holder and can then remain until final polishing in this recording or holder and all processing steps, such Priming with a primer, grinding, coating or painting in various coating steps with intermediate grinding and the like. Go through and final polishing. This leads to a very effective and efficient way of working.

Bei dem erfindungsgemäßen Verfahren, das als Strahlschleifen oder -polieren bezeichnet werden kann, bzw. einer entsprechenden Vorrichtung wird der Strahlmittelstrahl mit einem Auftreffwinkel α zwischen zu behandelnder Oberfläche und der Hauptstrahlrichtung von höchstens 20° und besonders bevorzugt höchstens 10° auf die Oberfläche gerichtet. Vor allem Winkel im Bereich zwischen 10° und 20° und besonders zwischen 10° und 15° haben sich als sehr vorteilhaft erwiesen. Da ein entsprechender Strahl aus einer Strahldüse oder dgl. üblicherweise divergiert ist der Winkel im Bezug zur Hauptstrahlrichtung zu sehen, die eine Mittellinie des Gesamtstrahls darstellt.In the method according to the invention, which can be referred to as jet grinding or polishing, or a corresponding device, the abrasive jet is directed onto the surface at an angle of incidence α between the surface to be treated and the main jet direction of at most 20 ° and more preferably at most 10 °. Especially angles in the range between 10 ° and 20 ° and especially between 10 ° and 15 ° have proven to be very beneficial. Since a corresponding beam from a jet nozzle or the like is usually diverged, the angle relative to the main jet direction, which represents a center line of the overall beam, is seen.

Bei einer Behandlung eines Bauteils, wie beispielsweise einer Holzfaserplatte oder MDF-Platte, ist es vorteilhaft, wenn beispielsweise sämtliche Flächen in annähernd gleicher Güte behandelt werden sollen, den Strahlmittelstrahl so auf die zu bearbeitende Oberfläche zu richten, dass an die Oberfläche angrenzende Flächen nicht durch die Strahlmittel getroffen werden oder nicht mit einem größeren Auftreffwinkel auf die benachbarten Flächen auftreffen, als demjenigen Auftreffwinkel, den der Hauptstrahl mit der zu bearbeitenden Oberfläche einnimmt. Dadurch wird gewährleistet, dass die benachbarten Oberflächen durch die Strahlmittel nicht beschädigt oder abgetragen werden, was passieren könnte, wenn die Strahlmittel mit einem zu großen Auftreffwinkel auf die benachbarten Oberflächen auftreffen. In bestimmten Fällen kann dies jedoch gerade gewünscht sein, wenn beispielsweise an schmalen Stirnseiten oder entsprechenden Kanten eine Materialverdichtung bewirkt werden soll. In diesem Fall kann der Strahlmittelstrahl ohne Weiteres über die Ränder bzw. Kanten geführt werden.In a treatment of a component, such as a wood fiber board or MDF board, it is advantageous if, for example, all surfaces are to be treated in approximately the same quality, to direct the blasting abrasive beam on the surface to be processed so that not adjacent to the surface surfaces the blasting means are struck or do not strike the adjacent surfaces with a greater angle of incidence than the angle of incidence which the main jet occupies with the surface to be processed. This ensures that the adjacent surfaces are not damaged or worn away by the blasting media, which could happen if the blasting agents hit the adjacent surfaces at too great an angle of incidence. In certain cases, however, this may just be desired if, for example, a material compaction is to be effected on narrow end faces or corresponding edges. In this case, the abrasive jet can be easily passed over the edges or edges.

Daraus ergibt sich jedoch, dass in bestimmten Fällen die zu bearbeitende Oberfläche mit gewissen Strahlmittelstrahlen nicht komplett bearbeitet werden kann, da im Randbereich der zu bearbeitenden Oberfläche, also beispielsweise in einem Bereich, in dem an einer Kante eine benachbarte Oberfläche angeordnet ist, die auf den Strahlmittelstrahl zuweist, also eine Oberflächennormale aufweist, die zumindest einem Anteil der Strahlmittelrichtung vektoriell gesehen entgegengerichtet ist. Dies bringt die Gefahr mit sich, dass diese benachbarte Oberfläche durch den Strahlmittelstrahl beschädigt oder unerwünscht bearbeitet werden könnte.It follows, however, that in certain cases, the surface to be machined with certain blasting abrasive rays can not be completely processed, as in the edge region of processing surface, so for example in a region in which an adjacent surface is disposed on one edge, which assigns to the Strahlmittelstrahl, that has a surface normal, which is at least a portion of the Strahlmittelrichtung vectorially opposite directed. This entails the risk that this adjacent surface could be damaged by the jet of abrasive or undesirably processed.

Erfindungsgemäß ist daher ein zweiter Strahlmittelstrahl vorgesehen, der eine entgegengesetzte Hauptstrahlrichtung aufweist, aber betragsmäßig mit dem gleichen oder einem ähnlichen Auftreffwinkel auf die zu bearbeitende Oberfläche auftrifft. Dieser Strahl trifft dann zwangsweise in dem Bereich, in dem die benachbarte Oberfläche mit der zu bearbeitenden Oberfläche beispielsweise im Bereich einer Kante zusammenstößt, nicht auf die benachbarte Oberfläche auf, da die benachbarte Oberfläche im Strahlschatten liegt. Entsprechend kann dieser zweite Strahlmittelstrahl mit entgegengesetzter Strahlrichtung in den Bereichen, in denen der erste Strahlmittelstrahl nicht bis an den Rand der zu bearbeitenden Oberfläche eingesetzt werden kann, über den Rand hinweg bearbeiten, so dass eine vollflächige Bearbeitung der zu bearbeitenden Oberfläche ermöglicht wird. Entsprechend ist es vorteilhaft, mehrere Paare von Strahlmittelstrahlen mit entgegengesetzten Einstrahlrichtungen vorzusehen.According to the invention, therefore, a second blasting agent jet is provided, which has an opposite main jet direction, but impinges on the surface to be processed in terms of amount with the same or a similar angle of incidence. This beam then necessarily impinges on the adjacent surface in the region in which the adjacent surface collides with the surface to be processed, for example in the region of an edge, since the adjacent surface lies in the beam shadow. Accordingly, this second blasting agent jet with opposite jet direction in the areas in which the first blasting agent jet can not be used up to the edge of the surface to be processed, edit over the edge, so that a full-surface processing of the surface to be processed is made possible. Accordingly, it is advantageous to provide several pairs of blasting agent jets with opposite directions of irradiation.

Bei einem quaderförmigen oder quaderähnlichen Bauteil können so für jede zu bearbeitende Oberfläche mindestens zwei Strahlmittelstrahlen vorgesehen sein, die beispielsweise parallel zu einer Längskante ausgerichtet werden. Bzgl. der Längskante bestehen im Randbereich keine Probleme mit benachbarten Flächen, so dass hier eine Bearbeitung der zu bearbeitenden Oberfläche bis zur Kante, also bis über den Rand hinaus, vorgenommen werden kann.In the case of a cuboid or parallelepiped-like component, at least two blasting agent jets can be provided for each surface to be machined, which are aligned, for example, parallel to a longitudinal edge. Concerning. The longitudinal edge in the edge region no problems with adjacent surfaces, so that here a machining of the surface to be machined to the edge, so beyond the edge, can be made.

Bei den quer zur Strahlrichtung verlaufenden Kanten der zu bearbeitenden Oberfläche kommt es darauf an, ob die an die Kante angrenzende benachbarte Fläche in Richtung oder in der Nähe der Strahlmittelquelle angeordnet ist oder abgewandt davon. Die abgewandte benachbarte Fläche ist im abgeschatteten Bereich des Strahlmittelstrahls, so dass auch hier eine Bearbeitung bis zur Kante erfolgen kann. Bzgl. der der Strahlmittelquelle zugewandten Kante kann ein Sicherheitsabstand eingehalten werden, so dass die Bearbeitung der zu bearbeitenden Oberfläche erst in einem beabstandeten Bereich erfolgt.In the transverse to the beam direction edges of the surface to be machined, it depends on whether the edge adjacent to the adjacent surface is located in the direction of or near the blasting agent source or away from it. The remote adjacent surface is in the shaded area of the blasting agent beam, so that here too processing can be done up to the edge. Concerning. the blasting agent source facing edge can be maintained a safety distance, so that the processing of the surface to be machined takes place only in a spaced area.

Durch einen zweiten Strahlmittelstrahl, der entgegengesetzt dem ersten Strahlmittelstrahl angeordnet ist, kann der Randbereich im Bereich der vom ersten Strahlmittelstrahl nicht zu bearbeitenden Kante bearbeitet werden, so dass auch hier die gesamte zu bearbeitende Oberfläche abgedeckt werden kann.By a second Strahlmittelstrahl, which is arranged opposite to the first Strahlmittelstrahl, the edge region in the region of the first Strahlmittelstrahl not to be processed Edged edge, so that here, too, the entire surface to be machined can be covered.

Bei beliebig geformten Oberflächen können diese Prinzipien entsprechend übertragen werden, wobei darauf zu achten ist, wie die entsprechenden Kanten oder Flächenübergänge sowie die entsprechenden benachbarten Flächen zueinander ausgerichtet sind. Entsprechend kann es hier erforderlich sein, eine Vielzahl von Strahlmittelstrahlen einzusetzen.With arbitrarily shaped surfaces, these principles can be transferred accordingly, paying attention to how the corresponding edges or surface transitions as well as the corresponding adjacent surfaces are aligned with each other. Accordingly, it may be necessary to use a variety of abrasive blasting.

Als Strahlmittel können Körner oder Kügelchen oder sonstige Partikel aus jedem geeigneten Material, insbesondere organischen und anorganischen Stoffen, wie Naturprodukte, insbesondere Nussschalen, vorzugsweise Wallnussschalen, Glas, Kunststoff, Metall, insbesondere Metalllegierungen, vorzugsweise Stahl oder Aluminium, Sand, Kies, Keramik, Oxide, Nitride, Karbide, Diamant oder diamantähnliche Wirkstoffe, Quarz, Korund, Silizium, Karbid, Bornitrid, Trockeneis, Schiefer, Schlämmkreide, Zinnasche, Ceroxid oder Kombinationen davon eingesetzt werden. Insbesondere bieten sich alle abrasiven Mittel an, die auch als Schleifmittel oder Poliermittel Verwendung finden. Insbesondere können die Partikelkörner oder Kügelchen unterschiedlichste Größen aufweisen, wobei nicht nur eine Korngrößenverteilung innerhalb des eingesetzten Strahlmittels vorliegen kann, sondern es können grundsätzlich Strahlmittel mit unterschiedlichen durchschnittlichen Korngrößen Verwendung finden. Hierbei spielt selbstverständlich der entsprechende Einsatzzweck eine Rolle. Bei Schleifeinsätzen werden üblicherweise Strahlmittel mit größeren durchschnittlichen Partikeln oder Korngrößen verwendet, während bei Poliereinsätzen Pulver oder Granulate mit einer kleineren durchschnittlichen Korngröße Verwendung finden.As blasting agents, grains or beads or other particles of any suitable material, in particular organic and inorganic materials, such as natural products, in particular nutshells, preferably walnut shells, glass, plastic, metal, especially metal alloys, preferably steel or aluminum, sand, gravel, ceramics, oxides , Nitrides, carbides, diamond or diamond-like agents, quartz, corundum, silicon, carbide, boron nitride, dry ice, shale, whiting, tin ash, cerium oxide, or combinations thereof. In particular, offer all abrasive agents, which are also used as abrasives or polishing agents. In particular, the particle grains or beads may have a wide variety of sizes, and not only can a particle size distribution be present within the abrasive used, but in principle abrasive materials having different average particle sizes can be used. Of course, the corresponding purpose plays a role. Grinding inserts usually use blasting agents with larger average particles or grain sizes, while in polishing applications, powders or granules with a smaller average grain size are used.

Der Strahlmittelstrahl kann durch unterschiedlichste Technologien erzeugt werden, insbesondere durch Schleuderrad-, Druckluft-, Strahlturbinen und/oder Injektorstrahlanlagen. Entsprechend kann der Strahl Pressluft und/oder andere Gase und/oder Flüssigkeiten, wie insbesondere Wasser oder andere pastöse Stoffe zusätzlich zu den abrasiven Mitteln umfassen. Beispielsweise kann bei Pressluftstrahlanordnungen eine Strahldüse in Art einer Venturidüse oder eines Venturi-Injektors vergleichbar einer Wasserstrahlpumpe Verwendung finden, bei der durch das Ausströmen von Press- oder Druckluft durch eine Düse seitlich zugeführte abrasive Mittel in dem Pressluftstrom mitgerissen werden. Statt Press- oder Druckluft können hierbei auch andere Gase oder Flüssigkeiten, wie beispielsweise Wasser eingesetzt werden. Es kann auch vorteilhaft sein, wenn beispielsweise bei plattenförmigen Bauteilen der Strahl derart über die Ränder der zu bearbeitenden Oberfläche hinaus bewegt werden kann bzw. entsprechend umgekehrt das Bauteil, so dass beispielsweise Stirnseiten einer Platte, bei denen es sich üblicherweise um eine Schnittseite handelt, durch unter größerem Winkel auftreffende Strahlmittel zusätzlich verdichtet werden. Dies führt zu einem guten Kantenschutz. Auch hier sind Kombinationen aus einer Verdichtung, insbesondere zu Beginn der Bearbeitung durchgeführten Verdichtung, mit großen Auftreffwinkeln (größer als die angegebenen flachen Schleif- oder Polierwinkel), und einer anschließenden Schleif- und/oder Polierbearbeitung mit flachen Auftreffwinkeln möglich.The blasting agent jet can be produced by a wide variety of technologies, in particular by blast wheel, compressed air, jet turbines and / or injector blasting systems. Accordingly, the jet may comprise compressed air and / or other gases and / or liquids, in particular water or other pasty substances in addition to the abrasive agents. For example, in compressed air jet arrangements, a jet nozzle in the manner of a Venturi nozzle or a Venturi injector can be used comparable to a water jet pump in which laterally supplied abrasive agents are entrained in the stream of compressed air due to the outflow of compressed air or compressed air through a nozzle. Instead of compressed air or compressed air, other gases or liquids, such as water, can also be used. It may also be advantageous if, for example, in the case of plate-shaped components, the jet can be moved beyond the edges of the surface to be processed or, conversely, the component, so that, for example, end faces of a plate, which is usually an intersection At a larger angle incident blasting agents are additionally compressed. This leads to a good edge protection. Again, combinations of compaction, in particular compaction performed at the beginning of processing, with large angles of incidence (greater than the specified flat grinding or polishing angles), and subsequent grinding and / or polishing processing with flat angles of incidence are possible.

KURZBESCHREIBUNG DER FIGURENBRIEF DESCRIPTION OF THE FIGURES

Weiter Vorteile, Kennzeichen und Merkmale der vorliegenden Erfindung werden bei der nachfolgenden detaillierten Beschreibung von Ausführungsbeispielen anhand der beigefügten Zeichnungen deutlich. Die Zeichnungen zeigen hierbei in rein schematischer Weise in

Fig. 1
eine Seitenansicht eines ersten Ausführungsbeispiels einer Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens;
Fig. 2
eine Seitenansicht eines zweiten Ausführungsbeispiels einer Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens;
Fig. 3
eine Draufsicht auf eine Vorrichtung gemäß den Figuren 1 oder 2;
Fig. 4
in den Teilbildern a) bis c) eine Darstellung von Strahlmitteln;
Fig. 5
in den Teilbildern a) und b) eine seitliche Darstellung einer zu bearbeitenden Oberfläche vor der Bearbeitung a) und nach der Bearbeitung b);
Fig. 6
in den Teilbildern a) und b) eine seitliche Darstellung einer zu bearbeitenden Oberfläche a) und der bearbeiteten Oberfläche b).
Fig. 7
eine schematische Darstellung einer erfindungsgemäßen Behandlungssequenz in einer Draufsicht;
Fig. 8
eine Ansicht der in der Figur 7 dargestellten Vorrichtung senkrecht zur Transportrichtung; und
Fig. 9
eine Anordnung von Anlagenkomponenten gemäß der vorliegenden Erfindung; und in
Fig. 10
eine Darstellung der Bearbeitung von Quaderflächen.
Further advantages, characteristics and features of the present invention will become apparent in the following detailed description of embodiments with reference to the accompanying drawings. The drawings show this in a purely schematic way in
Fig. 1
a side view of a first embodiment of an apparatus for performing the method according to the invention;
Fig. 2
a side view of a second embodiment of an apparatus for performing the method according to the invention;
Fig. 3
a plan view of a device according to the Figures 1 or 2 ;
Fig. 4
in the diagrams a) to c) a representation of blasting agents;
Fig. 5
in the partial images a) and b) a lateral representation of a surface to be processed before processing a) and after processing b);
Fig. 6
in the partial images a) and b) a lateral representation of a surface to be machined a) and the machined surface b).
Fig. 7
a schematic representation of a treatment sequence according to the invention in a plan view;
Fig. 8
a view of the in the FIG. 7 illustrated device perpendicular to the transport direction; and
Fig. 9
an arrangement of plant components according to the present invention; and in
Fig. 10
a representation of the processing of rectangular areas.

Die Figur 1 zeigt in einer rein schematischen Seitenansicht ein zu bearbeitendes Bauteil, z.B. eine MDF-Platte 1, welche in einer Halterung, z.B. Spanneinrichtung 2 aufgenommen und festgehalten ist. Vorzugsweise kann die Halterung 2 eine hängende Aufnahme einer MDF-Platte 1 ermöglichen, so dass die MDF-Platte 1 an einem Schienensystem durch eine Anlage bewegt werden kann. Alternativ kann die MDF-Platte an Haken aufgehängt werden.The FIG. 1 shows in a purely schematic side view of a machined component, such as an MDF board 1, which is received in a holder, such as clamping device 2 and held. Preferably, the holder 2 can allow a suspended receiving an MDF plate 1, so that the MDF plate 1 can be moved on a rail system by a system. Alternatively, the MDF board can be hung on hooks.

Im Bezug zur Halteeinrichtung 2 sind mehrere Strahldüsen 3 angeordnet, die unter einem flachen Winkel a einen Strahl 9, der Strahlmittel umfasst, auf die Oberfläche des Bauteils 1 einstrahlen.In relation to the holding device 2 a plurality of jet nozzles 3 are arranged, which radiate at a shallow angle a a beam 9, the blasting agent, on the surface of the component 1.

Bei der Darstellung der Figur 1 sind zwei gegenüberliegende Strahldüsen 3 gezeigt, die den Strahl 9 jeweils aufeinander zugerichtet auf das Bauteil 1 richten. Diese Düsen 3 können zeitlich abwechselnd Strahlen 9 mit entgegengesetzter Strahlrichtung auf das Bauteil richten, so dass überstehende Holzfasern hin und her bewegt werden, so dass sie abbrechen. Alternativ oder zusätzlich können auch mehrere Strahldüsen nebeneinander mit parallel oder zumindest gleich gerichteten Strahlen 9 vorgesehen sein, wie dies beispielsweise in Figur 3 in einer Draufsicht zu sehen ist. Insgesamt können um das Bauteil 1 herum insbesondere äquidistant mehrere Strahlanordnungen 3 vorgesehen sein.In the presentation of FIG. 1 two opposite jet nozzles 3 are shown, which direct the beam 9 each directed towards the component 1. These nozzles 3 can alternately direct rays 9 with opposite jet direction on the component, so that excess wood fibers are moved back and forth so that they break off. alternative or in addition, a plurality of jet nozzles can be provided side by side with parallel or at least the same direction of rays 9, as for example in FIG. 3 can be seen in a plan view. Overall, a plurality of jet arrangements 3 can be provided in particular equidistantly around the component 1.

Die Strahldüsen 3 sind beweglich angeordnet, so dass zumindest eine Art von Bewegung möglich ist. Vorzugsweise sind die Strahldüsen in verschiedene Richtungen oder um verschiedene Drehachsen beweglich, so dass ein variabler Einsatz des Strahls 9 bzgl. der Oberfläche des Bauteils möglich ist. Wie mit den Doppelpfeilen in den Figuren 1 und 3 angedeutet, können die Strahldüsen 3 zunächst um eine Drehachse parallel zur zu bearbeitenden Oberfläche des Bauteils 1 veschwenkbar sein, so dass der Strahl- oder Auftreffwinkel α in einem bestimmten Bereich, vorzugsweise 5° bis 20° variabel einstellbar ist. Zusätzlich können die Strahldüsen 3 in Bezug auf das Bauteil 1 bewegt werden und zwar einerseits parallel zu den Rändern des Bauteils 1 oder senkrecht hierzu. Ferner kann eine Verschwenkung oder Rotation um eine Drehachse senkrecht zur zu bearbeitenden Oberfläche erfolgen, so dass der Einstrahlwinkel β, wie in Fig. 3 zu sehen, veränderbar ist. Insbesondere ist eine Bewegung der Strahldüsen 3 derart möglich, dass der Strahl über die gesamte zu bearbeitende Oberfläche bewegt werden kann. Alternativ ist es auch möglich fest angeordnete Strahldüsen 3 vorzusehen, jedoch die Halterung 2 des Bauteils 1 bzw. das Bauteil 1 an sich beweglich zu gestalten, so dass das Bauteil 1 unter den Strahldüsen 3 hindurch oder an diesen vorbei bewegt wird. Hierbei ist es insbesondere vorteilhaft, wenn der Strahl 9 bzw. das Bauteil 1 so bewegt werden können, dass der Strahl 9 nicht nur die gesamte Oberfläche des Bauteils 1 trifft, sondern auch angrenzende Stirnseiten 19, da hier durch den auftreffenden Strahl gleichzeitig eine Verdichtung des Oberflächenmaterials stattfindet, welche bei geschnittenen Platten an den Schnittseiten besonders vorteilhaft ist.The jet nozzles 3 are arranged movably, so that at least one type of movement is possible. Preferably, the jet nozzles are movable in different directions or about different axes of rotation, so that a variable use of the jet 9 with respect to the surface of the component is possible. As with the double arrows in the FIGS. 1 and 3 indicated, the jet nozzles 3 may first be pivotable about an axis of rotation parallel to the surface to be machined of the component 1, so that the beam or impact angle α in a certain range, preferably 5 ° to 20 ° is variably adjustable. In addition, the jet nozzles 3 can be moved with respect to the component 1, on the one hand parallel to the edges of the component 1 or perpendicular thereto. Furthermore, a pivoting or rotation about an axis of rotation perpendicular to the surface to be machined, so that the angle of incidence β, as in Fig. 3 to see, is changeable. In particular, a movement of the jet nozzles 3 is possible in such a way that the jet can be moved over the entire surface to be processed. Alternatively, it is also possible to provide fixed jet nozzles 3, but to make the holder 2 of the component 1 or the component 1 movable per se, so that the component 1 is moved below the jet nozzles 3 or past them. It is particularly advantageous if the beam 9 or the component 1 can be moved so that the beam 9 not only the entire surface of the component 1 strikes, but also adjacent end faces 19, since here by the incident beam simultaneously a compression of the Surface material takes place, which is particularly advantageous in cut plates on the cut sides.

Bei den Strahldüsen 3 des Ausführungsbeispieles der Fig. 1 handelt es sich um Pressluft- oder Druckluftdüsen 3, bei denen in einer Drucklufterzeugniseinrichtung 8 erzeugte Druckluft, die über eine Zuführleitung 7 an die Düsenanordnung 3 herangeführt wird, über die Düse 3 ausgegeben wird. Da die Strahldüse 3 im Bereich vor dem Düsenaustritt eine seitliche Zuführung 4 vorgesehen hat, werden Strahlmittel, aus dem Strahlmittelbehälter 5, welche über eine Zuführleitung 6 an die seitliche Zuführung 4 herangeführt werden, in dem Druckluftstrahl mitgerissen und mit der Druckluft bzw. der Pressluft im Strahl 9 auf die Oberfläche des Bauteils 1 geleitet. Durch die Druckluft, die mit einem Druck von bis zu 10 bar, üblicherweise 2 bis 5 bar auf die Düse aufgegeben wird, werden Strahlgeschwindigkeiten von ca. 10 m/s eingestellt. In Abhängigkeit vom gewählten Strahlmittel sind auch Geschwindigkeiten bis zu 90 m/s denkbar.In the jet nozzles 3 of the embodiment of the Fig. 1 it is compressed air or compressed air nozzles 3, in which in a compressed air product device 8 generated compressed air, which is supplied via a supply line 7 to the nozzle assembly 3, is output via the nozzle 3. Since the jet nozzle 3 has provided a lateral feed 4 in the area in front of the nozzle outlet, blasting agents are entrained in the compressed air jet from the blasting agent container 5, which are supplied to the lateral feed 4 via a feed line 6, and with the compressed air or the compressed air in the Beam 9 passed to the surface of the component 1. By the compressed air, which with a pressure of up to 10 bar, usually 2 to 5 Bar is placed on the nozzle, jet speeds of about 10 m / s are set. Depending on the selected blasting medium speeds up to 90 m / s are conceivable.

Die mit dieser Geschwindigkeit auf die Oberfläche des Bauteils 1 auftreffenden Strahlmittel führen dazu, dass bei einem Bauteil 1 aus Holzwerkstoffen, insbesondere MDF-Platten aus der Oberfläche überstehende Holzfasern abgebrochen werden, so dass sich eine glatte, geschliffene Oberfläche ergibt. Im Falle einer bereits beschichteten bzw. lackierten Oberfläche führt das Strahlen unter flachem Winkel dazu, dass Unebenheiten, wie Spitzen und dgl. ebenfalls abgebrochen und eingeebnet werden, so dass auch hier eine entsprechende glatte Oberfläche mit wenigen Unebenheiten und Rauhigkeiten erzeugt wird. Je nach Einsatzzweck ist selbstverständlich, dass die entsprechenden Strahlmittel unterschiedlich ausgebildet sein können. Für eine gröbere Bearbeitung mit rauheren und unebenerer Oberflächen werden Strahlmittel mit größerem Korndurchmesser eingesetzt als bei Poliervorgängen, bei denen entsprechend feine Strahlmittel Verwendung finden.The blasting means impinging on the surface of the component 1 at this speed cause wood fibers, in particular MDF boards, to be broken off from the surface of protruding wood fibers in a component 1, so that a smooth, ground surface results. In the case of an already coated or painted surface, the blasting at a shallow angle causes irregularities such as tips and the like to also be broken off and leveled, so that here too a corresponding smooth surface with few unevennesses and roughnesses is produced. Depending on the purpose of use, it goes without saying that the corresponding blasting agents can be designed differently. For coarser machining with rougher and uneven surfaces, blasting agents with a larger grain diameter are used than in polishing processes in which correspondingly fine blasting abrasives are used.

Die Figur 2 zeigt eine rein schematische Seitendarstellung einer zweiten Ausführungsform einer entsprechenden Vorrichtung zur Behandlung von Bauteilen, insbesondere Holzbauteilen unter flachem Auftreffwinkel. Die Ausführungsform der Figur 2 unterscheidet sich von derjenigen der Figur 1 dadurch, dass eine andere Strahlanordnung Verwendung findet, während die Halteeinrichtung für das Bauteil 1 identisch ist und somit ein identisches Bezugszeichen aufweist wie diejenige des Ausführungsbeispiels der Figur 1.The FIG. 2 shows a purely schematic side view of a second embodiment of a corresponding device for the treatment of components, in particular wooden components at a flat angle of incidence. The embodiment of the FIG. 2 is different from the one of FIG. 1 in that a different beam arrangement is used, while the holding device for the component 1 is identical and thus has an identical reference number to that of the exemplary embodiment of FIG FIG. 1 ,

Die Strahlanordnung 12 der Figur 2 ist eine Schleuderradturbine, die eine seitliche Ansaugung 10 aufweist, über die über eine Zuführleitung 11 aus einem Strahlmittelreservoir 13 Strahlmittel angesaugt werden, welche dann über das Schleuderrad 12 senkrecht zur Ansaugrichtung abgegeben werden. Hier kann auf eine zusätzliche Anordnung zur Erzeugung eine Trägermittels, wie Pressluft bei der Ausführungsform der Fig. 1 verzichtet werden, da durch das Schleuderrad 12 das Strahlmittel ohne zusätzlichen Hilfsstoff auf die Oberfläche des Bauteils 1 aufgebracht werden kann. Allerdings ist es natürlich selbstverständlich, dass in dem Strahlmittelreservoir 13 ein Gemisch aus einem Strahlmittel mit einem Hilfsstoff, wie beispielsweise einer Flüssigkeit oder einem pastösen Trägermittel vorgesehen sein kann.The beam arrangement 12 of FIG. 2 is a blast wheel, which has a lateral suction 10, 13 are sucked through a supply line 11 from a blasting agent reservoir blasting agent, which are then discharged via the impeller 12 perpendicular to the suction. Here can be an additional arrangement for generating a support means, such as compressed air in the embodiment of the Fig. 1 be dispensed with, since the blasting agent 12 can be applied to the surface of the component 1 by the blast wheel 12 without additional auxiliary material. However, it goes without saying that a mixture of a blasting agent with an adjuvant, such as a liquid or a pasty carrier, may be provided in the blasting agent reservoir 13.

Die Figur 3 zeigt in einer Draufsicht die Anordnung der Strahlanordnungen 3 bzw. 12 um das zu bearbeitende Bauteil 1.The FIG. 3 shows a top view of the arrangement of the beam assemblies 3 and 12 about the component to be machined. 1

Gemäß der Ausführungsform, wie sie in der Figur 3 dargestellt ist, sind an zwei benachbarten Seiten einer MDF-Platte 1, die senkrecht zueinander angeordnet sind, jeweils zwei Strahlanordnungen 3 bzw. 12 vorgesehen, die in unterschiedlichen Einstrahlwinkeln ß die Oberflächen des Bauteils 1 bestrahlen können. Der Einstrahlwinkel ß ist hierbei beispielsweise als Winkel der Hauptstrahlrichtung des Strahls 9 zur Seitennormale definiert. Der Einstrahlwinkel ß kann beispielsweise in einem Bereich von -45° bis + 45° variiert werden. Zudem ist natürlich auch hier die Möglichkeit gegeben die Strahlanordnungen 3,12 längs den entsprechenden Seiten gemäß dem gezeigten Doppelpfeil hin und her zu bewegen sowie senkrecht zu der jeweiligen Seite, an der sie angeordnet sind, so dass insgesamt eine komplette Bestrahlung der Oberfläche des Bauteils 1 möglich ist.According to the embodiment as shown in the FIG. 3 are shown, two jet assemblies 3 and 12 are provided on two adjacent sides of an MDF plate 1, which are arranged perpendicular to each other, which can irradiate the surfaces of the component 1 in different angles of incidence ß. In this case, the angle of incidence β is defined, for example, as the angle of the main beam direction of the beam 9 relative to the side normal. The angle of incidence β can, for example, be varied within a range of -45 ° to + 45 °. In addition, of course, here also the possibility given the beam arrangements 3,12 along the respective sides according to the double arrow shown to move back and forth and perpendicular to the respective side on which they are arranged, so that a total of a total irradiation of the surface of the component. 1 is possible.

In Figur 4 sind in den Teilbildern a) bis c) mögliche Formen von Strahlmitteln dargstellt. Neben beliebig geformten Körnern, welche im Teilbild a) dargestellt sind, sind üblicherweise Kugelformen (Teilbild b)) im Einsatz. Die Körner zeichnen sich durch spitze, kantige Oberflächen aus, während die Kugelformen eine glatte runde Oberfläche besitzen.In FIG. 4 in the diagrams a) to c) possible forms of blasting agents dargstellt. In addition to arbitrarily shaped grains, which are shown in panel a), usually spherical shapes (panel b)) are in use. The grains are characterized by sharp, edged surfaces, while the spherical shapes have a smooth round surface.

In Kornform liegen üblicherweise Strahlmittel aus Metall, z.B. Metallspäne, Drahtabschnitte und dgl. sowie Oxide, Karbide, Nitride, Korund, Keramiken und dgl. vor. Kugelformen sind üblicherweise bei Glas, Kunststoff und ähnlichem zu finden, obwohl selbstverständlich jedes geeignete Material in der einen oder andern Form vorliegen kann.In granular form, there are usually metal blasting agents, e.g. Metal chips, wire sections and the like. And oxides, carbides, nitrides, corundum, ceramics and the like. Before. Ball shapes are commonly found in glass, plastic and the like, although of course any suitable material may be in one form or another.

Darüber hinaus sind auch Strahlmittel einsetzbar, bei denen z.B. kleine Stoff- oder Filzteile, also flexible Elemente mit entsprechenden abrasiven Komponenten, z.B. Körnern oder Kügelchen benetzt sind. Dies ist beispielsweise möglich, wenn entsprechende Stoff- oder Filzteilchen mit Suspensionen aus abrasiven Elementen und entsprechend flüssigen oder pastösen Hilfsstoffen getränkt sind.In addition, blasting agents can be used in which e.g. small pieces of cloth or felt, ie flexible elements with corresponding abrasive components, e.g. Grains or beads are wetted. This is possible, for example, if appropriate fabric or felt particles are impregnated with suspensions of abrasive elements and corresponding liquid or pasty excipients.

Die Figuren 5 und 6 zeigen in den Teilbildern die Wirkung des erfindungsgemäßen Verfahrens einerseits für Holzoberflächen (Fig. 5) sowie beschichtete bzw. lackierte Oberflächen (Fig. 6).The FIGS. 5 and 6 show in the partial images the effect of the method according to the invention on the one hand for wood surfaces ( Fig. 5 ) as well as coated or painted surfaces ( Fig. 6 ).

Bei den Holzoberflächen ist es üblicherweise so, dass Holzfasern aus der Oberfläche hervorstehen. Dies ist durch die gezeigten Holzfasern 14 auf dem Bauteil 1 in Teilbild a) der Figur 5 schematisch dargestellt. Nach dem Bestrahlen unter einem flachen Winkel sind die Holzfasern 14 abgebrochen, so dass nur noch Holzfaserstümpfe 15 an der Oberfläche des Bauteils 1 vorliegen, die jedoch die glatte und ebene Oberfläche nicht mehr beeinträchtigen.In the case of wood surfaces it is usually the case that wood fibers protrude from the surface. This is due to the wood fibers 14 shown on the component 1 in part a) the FIG. 5 shown schematically. After irradiation at a shallow angle, the wood fibers 14 are broken off, so that only wood fiber stumps 15 are present on the surface of the component 1, which, however, no longer impair the smooth and even surface.

In ähnlicher Weise wird beispielsweise bei beschichteten oder lackierten Oberflächen eine auf dem Bauteil 1 vorhandene Lackschicht 16 mit Spitzen 17, wie sie im Teilbild a) der Figur 6 zu sehen ist, durch die Strahlbehandlung unter flachem Auftreffwinkel so verändert, dass die Berge 18 der Beschichtungsschicht 16 auf dem Bauteil 1 eingeebnet sind (siehe Teilbild b) der Figur 6).Similarly, for example, in coated or painted surfaces existing on the component 1 paint layer 16 with tips 17, as shown in the drawing a) FIG. 6 can be seen, modified by the beam treatment at a flat angle of impact so that the mountains 18 of the coating layer 16 are planarized on the component 1 (see drawing b) FIG. 6 ).

In der Figur 7 ist schematisch eine weitere Behandlungseinrichtung 100 zum Schleifen und/oder Polieren eines Bauteils 200 dargestellt.In the FIG. 7 schematically another treatment device 100 for grinding and / or polishing a component 200 is shown.

Das Bauteil 200 wird entlang einer Transportstrecke T in einer Transportrichtung, die durch einen Pfeil angedeutet ist, transportiert. Dabei werden die unterschiedlichen Oberflächen des Bauteils 200, das beispielsweise als flächiges Element mit Kanten ausgebildet ist, zum Teil nacheinander, zum Teil zeitgleich behandelt.The component 200 is transported along a transport path T in a transport direction, which is indicated by an arrow. In this case, the different surfaces of the component 200, which is formed, for example, as a flat element with edges, partly successively treated, sometimes at the same time.

In einer ersten Station 103 wird die vordere Stirnseite an der Vorderkante des Bauteils mit dem Strahl S aus einer Strahlturbine bzw. Druckstrahldüse 104, welche ein Strahlmittel in einem Winkel α zwischen 10 ° und 20 ° auf die Oberfläche aufbringt, behandelt. In gleicher Weise wird die hintere Stirnseite an der hinteren Kante des Bauteils 200 mit einem Strahl S einer weiteren Strahlturbine bzw. Druckstrahldüse 5 behandelt, wobei das Strahlmittel ebenfalls mit einem Winkel α zwischen 10 ° und 20 ° auf die hintere Oberfläche auftrifft. Zur Vermeidung einer Bestrahlung der Hauptfläche H werden die Strahlen S der Strahlanordnungen 104 und 105 nur auf den Bereich gerichtet, der auf der von der durch die Transportrichtung vorgegebenen Linie bezüglich der Strahlanordnungen abgewandten Seite liegt. Entsprechend können spiegelsymmetrisch zur Transportlinie weitere Strahlanordnungen vorgesehen sein (nicht gezeigt).In a first station 103, the front end face at the front edge of the component with the jet S from a jet turbine or Druckstrahldüse 104, which applies a blasting agent at an angle α between 10 ° and 20 ° on the surface treated. In the same way, the rear end side is treated at the rear edge of the component 200 with a jet S of another jet turbine or pressure jet nozzle 5, wherein the blasting agent also impinges on the rear surface at an angle α between 10 ° and 20 °. To avoid irradiation of the main surface H, the rays S of the beam arrangements 104 and 105 are directed only to the region which lies on the side facing away from the line predetermined by the transport direction with respect to the beam arrangements. Accordingly, mirror-symmetrical to the transport line further beam arrangements can be provided (not shown).

Wie in der Figur 8 dargestellt, werden im gleichen oder in einem darauf folgenden Schritt auch die Oberkante und die Unterkante des Bauteils 2 mit Strahlmittelstrahlen behandelt, die von Strahlturbinen oder Druckstrahldüsen 106 und 107 bzw. 106' und 107' erzeugt werden. Hier sind auch die vorher angesprochenen spiegelsymmetrisch angeordneten Strahlanordnungen 106' und 107' gezeigt, die Strahlen erzeugen, die entgegen gesetzte Strahlrichtungen zu denjenigen der Strahlanordnungen 106 und 107 aufweisen, aber betragsmäßig mit dem gleichen Winkel α auftreffen. Der bearbeitete Bereich liegt hierbei auf der Seite der Strahlanordnungen 106 und 107 bezogen auf die Haupttransportebene T'. Entsprechend trifft Strahlgut in einem Winkel α zwischen 10 ° und 20 ° auf die jeweilige zu behandelnde Oberfläche des Bauteils 200 auf.Like in the FIG. 8 represented, in the same or in a subsequent step, the upper edge and the lower edge of the component 2 are treated with blasting abrasive jets, the of jet turbines or pressure jet nozzles 106 and 107 or 106 'and 107', respectively. Shown here are also the previously mentioned mirror-symmetrically arranged beam arrangements 106 'and 107', which generate beams which have opposite beam directions to those of the beam arrangements 106 and 107, but impinge in magnitude at the same angle α. The machined area lies on the side of the beam arrangements 106 and 107 relative to the main transport plane T '. Accordingly, blasting material impinges on the respective surface of the component 200 to be treated at an angle α between 10 ° and 20 °.

Die Figur 8 zeigt, dass das Bauteil 200 im Wesentlichen als flächige Platte ausgebildet ist. Sie bewegt sich entlang der Transportrichtung T und definiert dabei eine durch ihre zentrale Achse bestimmte Haupttransportebene T'. Die Haupttransportebene T' kann während des Transports, wie im Ausführungsbeispiel gezeigt, im Wesentlichen senkrecht, prinzipiell jedoch auch quer oder horizontal ausgerichtet sein.The FIG. 8 shows that the component 200 is formed substantially as a flat plate. It moves along the transport direction T, thereby defining a main transport plane T 'determined by its central axis. The main transport plane T 'can during transport, as shown in the embodiment, be substantially perpendicular, but in principle also transversely or horizontally aligned.

In einem weiteren Behandlungsschritt 108 (siehe Fig. 7) werden Teilbereiche der flächigen Oberflächen, die parallel zur Haupttransportrichtung T' und parallel zur Transportrichtung T angeordnet sind, behandelt. Eine Strahlturbine, Druckstrahldüse oder ein Schleuderrad 9 bringt ein Strahlmittel in einem Winkel α zwischen 10 ° und 20 ° auf die zu behandelnde Oberfläche auf. Die zur Transportebene parallele Komponente des Strahls S ist dabei in Richtung der Transportrichtung ausgerichtet. Die Oberfläche wird von der vorderen Kante weg bis zu einem Bereich etwa in der Mitte der zu behandelnden Oberfläche geschliffen bzw. poliert.In a further treatment step 108 (see Fig. 7 ) Sub-areas of the surface surfaces, which are arranged parallel to the main transport direction T 'and parallel to the transport direction T treated. A jet turbine, pressure jet nozzle or a centrifugal wheel 9 brings a blasting agent at an angle α between 10 ° and 20 ° to the surface to be treated. The parallel to the transport plane component of the beam S is aligned in the direction of transport. The surface is polished or polished away from the leading edge to an area approximately in the center of the surface to be treated.

Der übrige Bereich der Oberfläche wird in einem darauf folgenden Behandlungsschritt 110 behandelt, wobei eine Strahlturbine, Druckstrahldüse oder ein Schleuderrad 111 Strahlgut wiederum in einem Winkel α zwischen 10 ° und 20 ° auf die Oberfläche aufbringt. Die Komponente des Strahls S des Strahlmittels parallel zur Transportrichtung ist jedoch entgegenge-setzt zur Transportrichtung ausgerichtet.The remaining area of the surface is treated in a subsequent treatment step 110, with a jet turbine, pressure jet nozzle or a centrifugal wheel 111 applying abrasive material again at an angle α between 10 ° and 20 ° to the surface. The component of the jet S of the blasting medium parallel to the transport direction, however, is oriented counter to the transport direction.

Die Anlage kann, insbesondere die Prozessstationen 108 und 110 betreffend, beidseitig symmetrisch zur Transportrichtung T mit Strahlvorrichtungen ausgestattet sein, so dass beide Oberflächen des Bauteils 2 mit hoher Qualität behandelt werden können. Die Prozessstationen 108 und 110 können auch in eine einzige Prozessstation integriert sein.The system can, in particular the process stations 108 and 110 regarding, be equipped bilaterally symmetrical to the transport direction T with blasting devices, so that both surfaces of the component 2 can be treated with high quality. The process stations 108 and 110 may also be integrated into a single process station.

Durch die erfindungsgemäße Anordnung der Strahlvorrichtungen 9 und 11 mit Strahlrichtung S in Richtung bzw. entgegengesetzt zur Transportrichtung T wird verhindert, dass bei der Behandlung der flächigen Oberflächen Strahlmittel mit von der Einstrahlungsrichtung α stark abweichenden Winkeln auf eine der zu behandelnden Oberflächen bzw. Kanten auftrifft und diese aufraut.Due to the inventive arrangement of the jet devices 9 and 11 with beam direction S in the direction or opposite to the transport direction T is prevented that in the treatment of the surface surfaces blasting agent with strongly deviating from the irradiation direction α angles impinges on one of the surfaces or edges to be treated and to roast them.

Die Figur 9 zeigt ein Anlagenkonzept 112, bei dem verhindert wird, dass Strahlmittel aus der Strahlanlage 113 aus dem System 112 austreten.The FIG. 9 shows a plant concept 112, in which prevents blasting agents from the blasting machine 113 exit from the system 112.

Das Anlagenkonzept 112 weist eine Einlaufschleuse 114, eine Strahlanlage 113, in der die Behandlung von auf Lasttraversen angeordneten Bauteilen 200 stattfindet, und eine Auslaufschleuse 115 auf.The plant concept 112 has an inlet lock 114, a blasting installation 113, in which the treatment of components arranged on load crosspieces 200 takes place, and an outlet lock 115.

Die Einlaufschleuse 114 und die Auslaufschleuse 115 sind im Wesentlichen gleichartig ausgebildet. Sie weisen jeweils ein Eingangsblockierelement 116 und ein Ausgangsblockierelement 117 auf, die wahlweise geöffnet oder verschlossen werden können. Die Elemente 116 und 117 können beispielsweise als Gummischürzen oder -lamellen ausgebildet sein, die die Energie des Strahlguts absorbieren und ein Durchdringen des Strahlguts bei verschlossenem Element verhindern.The inlet lock 114 and the outlet lock 115 are formed substantially the same. They each have an input blocking element 116 and an output blocking element 117, which can be selectively opened or closed. The elements 116 and 117 may be formed, for example, as rubber aprons or fins, which absorb the energy of the blasting material and prevent penetration of the blasting material when the element is closed.

Die Elemente 116 und 117 können synchron geöffnet und verschlossen werden, so dass stets wenigstens eines der Elemente 116 oder 117 verschlossen ist. Auf diese Weise kann - angelehnt einem Schleusenkonzept - ein Bauteil 200 bei geöffnetem Eingangsblockierelement 116 und verschlossenem Ausgangsblockierelement 117 in die Einlaufschleuse 114 oder die Auslaufschleuse 115 zwischen die Blockierelemente 116 und 117 transportiert werden. Anschließend werden beide Blockierelemente 116 und 117 verschlossen. Daraufhin wird das Ausgangsblockierelement 117 bei geschlossenem Eingangsblockierelement 116 geöffnet, so dass das Bauteil 200 aus der Eingangsschleuse 114 bzw. der Auslaufschleuse 115 heraus transportiert werden kann.The elements 116 and 117 can be opened and closed synchronously so that always at least one of the elements 116 or 117 is closed. In this way - based on a lock concept - a component 200 can be transported with the input blocking element 116 open and the output blocking element 117 closed into the inlet lock 114 or the outlet lock 115 between the blocking elements 116 and 117. Subsequently, both blocking elements 116 and 117 are closed. Thereafter, the output blocking element 117 is opened when the input blocking element 116 is closed so that the component 200 can be transported out of the inlet lock 114 or the outlet lock 115.

Das aus der Strahlanlage 113 austretende Strahlgut trifft somit stets auf wenigstens ein geschlossenes Blockierelement 116 und/oder 117 und kann die Anlage nicht verlassen.The blasting material emerging from the blasting system 113 thus always strikes at least one closed blocking element 116 and / or 117 and can not leave the system.

Bei dem Ausführungsbeispiel der Figur 9 sind die Ausgangsblockierelemente 117 und Eingangsblockierelemente 116 an einem umlaufenden Endlosband angeordnet, so dass sie im richtigen Takt mit der Bewegungsgeschwindigkeit des zu bearbeitenden Bauteils 200 die entsprechenden Schließ- und Öffnungsvorgänge vornehmen. Weiterhin zeigt das Ausführungsbeispiel der Figur 9, dass für jede Eingangs- und Ausgangsschleuse jeweils zwei Eingangsblockierelemente 116 und Ausgangsblockierelemente 117 vorgesehen sind, die sich in Art von Klappelementen, vergleichbar den Türen einer Doppeltür, ergänzen. Selbstverständlich sind auch andere Öffnungs- und Schließelemente denkbar.In the embodiment of the FIG. 9 For example, the output blocking elements 117 and input blocking elements 116 are arranged on a revolving endless belt so that they perform the corresponding closing and opening operations in the correct cycle with the speed of movement of the component 200 to be processed. Furthermore, the embodiment of the shows FIG. 9 in that in each case two input blocking elements 116 and output blocking elements 117 are provided for each inlet and outlet lock, which complement each other in the manner of folding elements, comparable to the doors of a double door. Of course, other opening and closing elements are conceivable.

Die Figur 10 zeigt einen Quader mit einer Hauptfläche F1 und den Stirnflächen F2 und F3. Mit Bezug auf diese Flächen F1 bis F3 sind die Strahlen 300 bis 305 gezeigt, die die jeweiligen Flächen bearbeiten. Die Fläche F1 wird hierbei durch die Strahlen 300 und 301 bearbeitet, die parallel zu den Längskanten zwischen den Flächen F1 und F2 bzw. der entsprechen-den Bodenfläche ausgebildet sind. Bzgl. dieser Kanten kann der Bearbeitungsstrahl 300 als auch der Bearbeitungsstrahl 301 die Fläche F1 bis an den Randbereich bearbeiten, da über die Kante hinaustretende Strahlmittel nicht auf die senkrecht zur Fläche F1 angeordnete Fläche F2 bzw. der auf der anderen Seite entsprechend gegenüberliegenden Bodenfläche treffen.The FIG. 10 shows a cuboid having a main surface F1 and the end faces F2 and F3. With respect to these areas F1 to F3, the beams 300 to 305 are shown, which process the respective areas. The surface F1 is here machined by the beams 300 and 301 which are formed parallel to the longitudinal edges between the surfaces F1 and F2 and the corresponding bottom surface. Concerning. For these edges, the processing beam 300 as well as the processing beam 301 can process the surface F1 up to the edge region, since blasting agents projecting beyond the edge do not hit the surface F2 arranged perpendicularly to the surface F1 or the bottom surface correspondingly opposite on the other side.

Anders verhält es sich jedoch bzgl. der quer zur Strahlrichtung 300 bzw. 301 angeordneten Kante zwischen den Flächen F1 und F3 bzw. der korrespondierenden Kante auf der gegenüberliegenden Seite. Dort ist der Strahl 300 bzgl. der Kante zwischen den Flächen F1 und F3 unkritisch, da die Fläche F3 im Abschattungsbereich liegt. Für die der Fläche F3 gegenüberliegenden Fläche gilt das Gleiche für den Strahl 301. Allerdings ist bei dieser Kante der Strahl 300 kritisch, da überschüssige, die Fläche F1 nicht treffende Strahlpartikel unter zu großem Winkel auf die benachbarte Fläche auftreffen würden und dort eine Beschädigung hervorrufen könnten. Lediglich für den Fall, dass eine Verdichtung der entsprechenden Stirnfläche geplant ist, kann ein entsprechendes Auftreffen der Strahlpartikel mit großem Auftreffwinkel vorgesehen werden.However, the situation is different with respect to the edge arranged transversely to the beam direction 300 or 301 between the surfaces F1 and F3 or the corresponding edge on the opposite side. There, the beam 300 with respect to the edge between the surfaces F1 and F3 is not critical, since the surface F3 lies in the shading area. For the surface F3 opposite the same applies to the beam 301. However, at this edge of the beam 300 is critical, since excess, the surface F1 not meeting jet particles would impinge at too large an angle on the adjacent surface and could cause damage there , Only in the event that a compression of the corresponding end face is planned, a corresponding impact of the beam particles can be provided with a large impact angle.

Entsprechend ist gemäß der gestrichelt dargestellten Linie 306 das Auftreffgebiet für den Strahl 300 beabstandet von der entsprechenden Kante bzw. gemäß der gestrichelten Linie 307 für den Strahl 301 beabstandet von der Kante zwischen F1 und F3. Gleiches gilt für die Strahlen 302 und 303 bzw. 304 und 305 und dort dargestellten gestrichelten Linien, die das Ende des Auftreffbereichs markieren. Bzgl. der Strahlen 300 bis 303 können bei einer Transportrichtung gemäß dem Pfeil T die Strahlanordnungen stationär eingestellt werden, da durch das auf die Bewegung des Bauteils abgestimmte Beginnen und Beenden des Bestrahlens der Strahlungsbereich definiert werden kann. Anders verhält es sich bei den Strahlungsanordnungen für die Strahlen 304 und 305, bei denen die Strahlanordnungen entsprechend bewegt werden müssen oder der Strahl an sich einen großen Bereich abdeckt. Entsprechend können auch die für die Strahlen 304 und 305 verantwortlichen Strahlanordnungen so hergerichtet sein, dass sie über eine bestimmte Zeit mit dem Bauteil 200 in Transportrichtung T mitbewegt werden, um eine ausreichend lange Bestrahlung zu gewährleisten.Similarly, according to dashed line 306, the impact area for the beam 300 is spaced from the corresponding edge and, respectively, the dashed line 307 for the beam 301 is spaced from the edge between F1 and F3. The same applies to the beams 302 and 303 or 304 and 305 and dashed lines shown there, which mark the end of the impact area. Concerning. the rays 300 to 303 can in a transport direction According to the arrow T, the beam arrangements are set stationary, as can be defined by the tuned to the movement of the component starting and stopping the irradiation of the radiation area. The situation is different for the radiation arrangements for the beams 304 and 305, in which the beam arrangements have to be moved accordingly or the beam itself covers a large area. Correspondingly, the beam arrangements responsible for the beams 304 and 305 can also be prepared in such a way that they are moved along with the component 200 in the transport direction T over a specific time, in order to ensure a sufficiently long irradiation.

Die vorliegende Erfindung ist anhand der gezeigten Ausführungsbeispiele detailliert be-schrieben worden.The present invention has been described in detail with reference to the embodiments shown.

Der Schutzumfang der Erfindung wird durch die folgenden Ansprüche festgelegt.The scope of the invention is defined by the following claims.

Claims (14)

  1. Method for processing parts (1) made from timber-derived materials, especially MDF (medium density fibre) elements for achieving a sanded or polished surface, wherein blasting media are directed in at least two jets (9) onto the surface at a shallow impact angle,
    characterised by the fact that
    the surface to be processed is exposed to the two jets of blasting medium, wherein the principal blast directions of the jets of blasting medium have the same or similar impact angle α with the surface to be treated, but opposing blast directions, wherein the two jets of blasting medium are emitted from two opposed blasting installations (3), each directing its jet of blasting medium towards the other onto the surface to be processed, wherein the opposing blast directions are chosen such that, where there is an edge running transversely to the blast direction, said edge being bordered by a surface to be processed, said transverse edge faces towards one of the jets of blasting medium and faces away from the other jet of blasting medium and is in its blasting shadow.
  2. Method in accordance with claim 1,
    characterised by the fact that
    the impact angle α between the principal blast direction and the surface to be treated is at most 60 degrees or about 45 degrees, preferably at most 20 degrees, especially at most 10 degrees and/or the jet of blasting medium is directed onto the surface to be processed such that those areas bordering the surface in the region of an edge are not struck by the jet of blasting medium.
  3. Method in accordance with claim 2,
    characterised by the fact that
    the jet of blasting medium is directed at a distance from the edge of the surface to be processed onto the latter, with the area bordering the surface to be processed assuming a larger angle to the principal blast direction than the principal jet to the surface to be processed.
  4. Method in accordance with any of the previous claims,
    characterised by the fact that several pairs of jets of blasting medium with opposing blast directions are used.
  5. Method in accordance with any of the previous claims,
    characterised by the fact that
    in the case of a square-shaped or square-like part, provision is made for at least two jets of blasting medium for each surface to be treated, said jets being aligned parallel with a longitudinal edge and transverse to an edge which is transverse to the longitudinal edge, wherein each jet of blasting medium spaced at a distance from that transverse edge which is closer to the blasting source strikes the surface to be processed and sweeps over the other edges, such that both jets of blasting medium cover the entire surface to be processed and/or, in the event of an arbitrarily shaped part, the procedure is adjusted in accordance with the edges and surface contours.
  6. Method in accordance with any of the previous claims,
    characterised by the fact that
    the blasting media comprise grains or beads of organic or inorganic materials, natural products, nut shells, walnut shells, plastic, glass, metal, metal alloys, steel, aluminium, sand, gravel, ceramics, oxides, nitrides, carbides, diamond or diamond-like materials, quartz, corundum, silicon carbide, boron nitride, dry ice, slate, whiting, stannic oxide, cerium oxide, or combinations thereof and/or the blasting media comprise flexible carrier elements having arranged thereon one or more grains or beads of plastic, glass, metal, sand, gravel, ceramic, oxides, nitrides, carbides, diamond or diamond-like materials, quartz, corundum, silicon carbide, boron nitride, dry ice, slate, whiting, stannic oxide, cerium oxide, or combinations thereof, preferably cloth, felt or rubber strips, which are impregnated with a paste or pellets or liquid containing the grains or beads.
  7. Method in accordance with any of the previous claims,
    characterised by the fact that
    the jet (9) comprises compressed air, liquids, especially water or paste-like substances and/or the jet is generated by blasting wheel, compressed air, blasting turbine and/or injector blasting systems (3, 12).
  8. Method in accordance with any of the previous claims,
    characterised by the fact that
    the blasting rate is 3 m/s to 90 m/s, especially 4 m/s to 24 m/s, preferably 5 m/s to 15 m/s, especially about 10 m/s and/or the jet (9) is moved over the surface to be processed or vice versa, and in particular the part to be processed is moved continuously.
  9. Method in accordance with any of the previous claims,
    characterised by the fact that
    the method comprises one or more of the following steps:
    a) Treating the area aligned in a transport direction by a first jet;
    b) Treating the area aligned opposite a transport direction by a second jet;
    c) Treating areas of the part aligned parallel with the transport direction and perpendicularly to a principal transport plane by a third jet and a fourth jet;
    d) Treating surface(s) of the part aligned parallel with the transport direction and parallel with the principal transport plane between the front edge of the surface(s) to a region on the surface(s) which is arranged at a distance from the rear edge of the surface, wherein the blasting direction for this treatment step is aligned with the transport direction; and
    e) Treating surface(s) of the part aligned parallel with the transport direction and parallel with the principal transport plane at least between the region spaced at a distance from the rear edge and the rear edge of the surface, wherein the blasting direction for this treatment step is aligned opposite to the transport direction.
  10. Method in accordance with any of the previous claims,
    characterised by the fact that
    the jet is directed over the edges of the part or vice versa, and/or the impact angle α is varied during blasting.
  11. Method in accordance with any of the previous claims,
    characterised by the fact that
    the blast direction ß of the jet is varied transversely about an axis of rotation, especially perpendicularly to the blast direction during blasting, wherein preferably opposing blast directions are generated alternatingly and/or the blasting medium is temporally metered such that only a section of a surface of the part is processed due to the interruption of the feed of blasting medium to the outlet of a blasting apparatus and/or blasting medium is supplied to a blasting apparatus only in an amount that is limited in such a way that, with one jet, only a part of the surface to be treated is treated.
  12. Method in accordance with any of the previous claims,
    characterised by the fact that
    the blasting is performed as a sanding step in preparation for a coating step, especially painting, especially powder coating of a timber-derived part, especially an MDF part and/or, before the sanding step is effected by means of blasting, sealing is performed by means of a primer, especially a water-borne or solvent-borne paint and/or, between two grinding steps effected by means of blasting, sealing is performed by means of a primer, especially water-borne or solvent-borne paint and/or the blasting is performed as a polishing step after a coating step, especially painting, preferably powder coating of a timber-derived part, especially an MDF part, and/or blasting is performed as an intermediate sanding step prior to polishing of a coated or painted timber-derived part, especially an MDF part.
  13. Device for processing parts (1), preferably made of timber-derived materials, particularly of MDF (medium density fibre) elements for achieving a sanded or polished surface, especially by the method in accordance with any of claims 1 to 12,
    characterised by the fact that
    at least one fixture (2) and at least two opposing blasting installations (3, 12) are provided, which are arranged relative to one another such that blasting media can be directed in two jets (9) onto the surface to be processed at a flat impact angle, wherein the blasting installations are configured such that the two jets of blasting medium can be directed onto that surface to be processed whose principal blast directions have the same or similar incident angle α with the surface to be processed but opposing blast directions and wherein the opposing blasting installations direct their jet of blasting media onto the surface to be treated, wherein the opposing blast directions are chosen such that, where there is an edge running transversely to the blast direction, said edge being bordered by a surface to be processed, said transverse edge faces towards one of the jets of blasting medium and faces away from the other jet of blasting medium and is in its blasting shadow.
  14. Device in accordance with claim 13,
    characterised by the fact that
    blasting wheel, compressed air, blasting turbines and/or injector blasting installations are provided, and/or at least one inlet lock and/or an outlet lock is provided for the blasting installation and/or the inlet lock and/or the outlet lock have at least two opening and closing blocking elements, which preferably can be actuated synchronously, such that at least one of the blocking elements is always closed during operation of the blasting installation.
EP08717057.7A 2007-02-23 2008-02-22 Method for grinding and polishing wooden materials Not-in-force EP2132001B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08717057T PL2132001T3 (en) 2007-02-23 2008-02-22 Method for grinding and polishing wooden materials

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE200710009020 DE102007009020A1 (en) 2007-02-23 2007-02-23 Painted or coated component processing method, involves directing abrasive medium in jet at flat angle of impact to surface, where impact angle between main jet direction and surface is of preset degrees
DE102007015910 2007-04-02
PCT/EP2008/052196 WO2008102010A2 (en) 2007-02-23 2008-02-22 Method and device for grinding and polishing wooden materials, and corresponding wooden parts

Publications (2)

Publication Number Publication Date
EP2132001A2 EP2132001A2 (en) 2009-12-16
EP2132001B1 true EP2132001B1 (en) 2014-10-01

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US (1) US8920212B2 (en)
EP (1) EP2132001B1 (en)
DK (1) DK2132001T3 (en)
PL (1) PL2132001T3 (en)
RU (1) RU2009133827A (en)
WO (1) WO2008102010A2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HUP1000568A2 (en) 2010-10-26 2012-07-30 Laszlo Lugosi Method for three-dimensional working wooden natural surface
JP5746901B2 (en) * 2011-04-14 2015-07-08 株式会社不二製作所 Polishing method and nozzle structure of blast processing apparatus
JP6022862B2 (en) * 2012-05-08 2016-11-09 株式会社不二製作所 Hard brittle substrate cutting method and cutting device
WO2014018285A1 (en) * 2012-07-27 2014-01-30 Applied Materials, Inc. Roughened substrate support
CN103341826B (en) * 2013-07-17 2015-02-11 中集集团集装箱控股有限公司 Bamboo wood surface treatment method and processing method of bamboo flooring
US11712781B2 (en) * 2017-09-18 2023-08-01 Grip Tread, Llc Surfacing system for steel plate
CN110877297A (en) * 2019-11-22 2020-03-13 潘小秋 Equipment for polishing cambered surface vehicle body
BE1027847B1 (en) * 2019-12-12 2021-07-12 Unilin Bv Method for manufacturing panels, and thereby obtaining floor panel
DE102022103246A1 (en) 2022-02-11 2023-08-17 Homag Gmbh Method for cleaning a surface of a workpiece, a consumable and a component of a processing machine and processing machine
DE102022106559A1 (en) 2022-03-21 2023-09-21 Muyo Oberflächentechnik GmbH METHOD AND DEVICE FOR PRETREATING A COMPONENT BEFORE A COATING PROCESS

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4134182A1 (en) * 1991-10-16 1993-04-22 Wilhelm Linden Method to seal and finish timber - involves sandblasting to define contours, hard brushing, paint application, and differential paint removal
WO2006097133A1 (en) * 2005-03-14 2006-09-21 Workinter Limited Device and method for nozzle stripping by spraying a fluid loaded with solid particles forming an optimized stripping front

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US446962A (en) * 1891-02-24 Finishing wood surfaces
US2345942A (en) * 1942-01-06 1944-04-04 American Foundry Equip Co Wood finishing
US2400725A (en) * 1944-07-21 1946-05-21 George S Witham Apparatus for debarking timber
US2706355A (en) * 1948-06-16 1955-04-19 Brown Owen Method of producing variegated wood surface and product
US3580311A (en) * 1968-10-16 1971-05-25 Canadian Cedar Inc Process for treating wood
US4044507A (en) * 1976-05-12 1977-08-30 Silver Creek Minerals Corporation Method and apparatus for stripping, cleaning and treating surfaces
US5140783A (en) * 1990-06-26 1992-08-25 Hoffman Steve E Method for surface finishing of articles
US5257655A (en) * 1992-09-22 1993-11-02 Gary Skendzel Process for treating wood
US5435770A (en) * 1993-05-26 1995-07-25 Balentine; Linda Method of manufacturing etched wood products
US5964644A (en) 1996-03-01 1999-10-12 Extrude Hone Corporation Abrasive jet stream polishing
KR100730365B1 (en) * 1999-08-18 2007-06-19 코닌클리케 필립스 일렉트로닉스 엔.브이. Method of obtaining a pattern of concave spaces or apertures in a plate, and a brittle-like material and a pdp and a micro-electromechanical system, and a plasma-addressed liquid crystal display
US6584820B1 (en) * 1999-09-23 2003-07-01 Polyclad Laminates, Inc. Surface enhanced metal press plates for use in manufacture of laminates and multilayer materials and method of making same
SE516696C2 (en) * 1999-12-23 2002-02-12 Perstorp Flooring Ab Process for producing surface elements comprising an upper decorative layer as well as surface elements produced according to the method
US6419566B1 (en) 2000-02-11 2002-07-16 International Business Machines Corporation System for cleaning contamination from magnetic recording media rows
US7201193B1 (en) * 2003-07-17 2007-04-10 Loveland Screw Machine, Ltd. Process for treating wood with a mixture of garnet particles and glass beads
KR100709587B1 (en) * 2004-11-11 2007-04-20 가부시끼가이샤 후지세이사쿠쇼 Abrasive, a method for manufacturing the abrasive, and a method for blast processing with the use of the abrasive

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4134182A1 (en) * 1991-10-16 1993-04-22 Wilhelm Linden Method to seal and finish timber - involves sandblasting to define contours, hard brushing, paint application, and differential paint removal
WO2006097133A1 (en) * 2005-03-14 2006-09-21 Workinter Limited Device and method for nozzle stripping by spraying a fluid loaded with solid particles forming an optimized stripping front

Also Published As

Publication number Publication date
EP2132001A2 (en) 2009-12-16
US20110135877A1 (en) 2011-06-09
PL2132001T3 (en) 2015-06-30
WO2008102010A3 (en) 2009-05-07
RU2009133827A (en) 2011-03-27
WO2008102010A2 (en) 2008-08-28
DK2132001T3 (en) 2015-01-05
US8920212B2 (en) 2014-12-30

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