EP2132001A2 - Method and device for grinding and polishing wooden materials, and corresponding wooden parts - Google Patents
Method and device for grinding and polishing wooden materials, and corresponding wooden partsInfo
- Publication number
- EP2132001A2 EP2132001A2 EP08717057A EP08717057A EP2132001A2 EP 2132001 A2 EP2132001 A2 EP 2132001A2 EP 08717057 A EP08717057 A EP 08717057A EP 08717057 A EP08717057 A EP 08717057A EP 2132001 A2 EP2132001 A2 EP 2132001A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- component
- blasting
- jet
- edge
- machined
- 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.)
- Granted
Links
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 and a device for processing components, preferably made of wood materials according to the preamble of claim 1 and of claim 27 and correspondingly painted or coated wood components.
- 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
- 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 defined with respect to the Schleifpp. Polishing device must be arranged, which usually involves a complicated handling of the corresponding component with it, since a change of holder in comparison to the coating or coating processing 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.
- the corresponding method and the device should be easy to implement and provide good surface quality results.
- 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 or the corresponding device 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 can be 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.
- Especially angles in the range between 10 ° and 20 ° and especially between 10 ° and 15 ° have proven to be very beneficial.
- With lower demands on the quality of the surface and an angle of 45 ° is advantageous because then cuboid components can be treated on all sides with the same radiator. Since a corresponding beam from a jet nozzle or the like is usually diverged, the angle relative to the main beam direction, which represents a center line of the overall beam, is seen.
- the blasting agent beam so on the surface to be machined surfaces that surface adjacent to the surface can not be hit by the blasting media or impinge on the adjacent surfaces with a larger angle of incidence than the angle of incidence which the main jet occupies with the surface to be processed. This will ensure that the adjacent surfaces through the blasting media can not be damaged or eroded, which could happen if the blasting agents strike 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 can not be completely processed with certain shot blasting, since in the edge region of the surface to be machined, that is, for example, in a region in which an adjacent surface is disposed on one edge Blasting beam assigns, that has a surface normal, which is at least a portion of the Strahlffenschraum 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 beam can be 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.
- 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 adjacent to the edge adjacent surface in the direction or in the Near the blasting agent source is arranged or remote 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.
- the edge region can be processed in the region of the edge not to be machined by the first blasting agent jet, so that here too the entire surface to be processed can be covered.
- 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, whereas in polishing applications, powders or granules with a smaller average grain size are used.
- blasting agents may also be used which comprise flexible carrier elements, such as cloth, felt or rubber strips, on which one or more Grains or beads are arranged from the corresponding abrasive agents.
- flexible carrier elements such as cloth, felt or rubber strips
- fabric or felt strips may be impregnated with a suspension or slurry of abrasive media and a carrier liquid or paste. The flexible strips cause the very small particles to be pushed onto the surface by the strips for a certain time when they hit the surface flatly, and are then dragged along the surface in order to cause material removal of the tips or protruding fibers.
- the blasting abrasive can be produced by a variety of technologies, in particular by blast wheel, compressed air, jet turbines and / or Injektorstrahlanlagen.
- the jet may comprise compressed air and / or other gases and / or liquids, such as, in particular, water or other pasty substances in addition to the abrasive agents.
- 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.
- compressed air or compressed air other gases or liquids, such as water, can also be used.
- the device according to the invention can be prepared so that the blasting agent jet can be moved over the surface and indeed in different directions.
- a fixed arrangement of the beam arrangements is possible, in which case the component to be machined can be moved in various directions to the beam.
- a combination of the movement of the beam arrangements and the component to be machined is also conceivable.
- a combined movement of component and beam arrangements is particularly advantageous for the processing of certain areas.
- a full-surface coverage of the surface to be machined with the beam is guaranteed by the mutual mobility.
- the beam direction can vary during the treatment, in particular opposing or oppositely directed beam directions can be used alternately to achieve particularly good surfaces.
- the angle of incidence ⁇ can be varied during the treatment.
- the method can be designed such that one or more of the following steps are carried out: a) treatment of the area aligned in a transport direction with a first
- the main transport plane T ' is defined as the plane which is parallel to the main surface, in particular the largest surface of the component to be processed, which encloses the transport direction.
- steps d) and e) can also be applied to the treatment of other surfaces / edges of the component. All steps can be performed sequentially in any order, separately or overlapping in time.
- a procedure, as described previously with respect to the stationary machining of components of course, also applicable to moving and in particular linearly continuously moving components.
- beam arrangements for the machining of certain surfaces are moved along with the component for the processing time, in particular for surfaces which are arranged transversely, in particular perpendicular to the transport direction T and to the main transport plane T '.
- the jet can be moved beyond the edges of the surface to be processed or vice versa the component, so that, for example, end faces of a plate, which is usually an intersection, be additionally compressed by incident at a larger angle blasting agent.
- combinations of compaction, in particular compaction performed at the beginning of the 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.
- the blasting agent may be important to meter the blasting agent precisely in time so that the blasting abrasive is prevented from impinging on areas which are not to be irradiated, in particular at an angle other than the angle of attack preferred in the context of the invention.
- the blasting agent beams can be switched on and off accordingly.
- control can be done by a Strahlstoffdostechnik.
- an amount of blasting agent is initially calculated, which is limited so that, for example, a surface is only partially treated.
- the required blasting material quantity is calculated by the ejection rate of the turbine, the relative transport speed or the surface irradiation rate.
- the inventive method can be used in particular as a grinding step for preparing a coating step, in particular before painting or powder coating a wooden component, in particular MDF component.
- the surface Before carrying out the grinding step by means of the blast treatment, the surface can be sealed by means of a primer, wherein the primer can be a water-based or solvent-containing lacquer.
- the primer can be a water-based or solvent-containing lacquer.
- the surface can be sealed by means of a primer, wherein the primer can again be a water-based or solvent-containing lacquer.
- a second grinding step by means of blast treatment whereupon the painting or powder coating can then take place.
- the present method can be used as any intermediate step or as a polishing step after a coating process or as finishing.
- An appropriately treated surface is characterized not only by the leveling of the peaks or the breaking off of protruding fibers, but also by the formation of a compacted surface area by the incident blasting agents.
- the present invention also relates to a device comprising at least one blasting machine, an inlet lock and / or an outlet lock.
- the inlet lock and / or the outlet lock have at least two blocking elements which can be opened and closed synchronously and can be actuated synchronously such that at least one of the blocking elements is always closed during the operation of the blasting system in order to prevent the blasting agent from emerging from an irradiation area.
- the component to be treated is transported in the transport direction first into the inlet lock, then into the blasting machine for treatment with the blasting agent, and then into the outlet lock.
- the inlet lock, the irradiation area and the outlet lock are preferably designed as chambers arranged one behind the other. In the context of the invention, the inlet lock and / or the outlet lock are designed such that even light blasting material from the radiation area is prevented from leaving the inlet lock and / or the outlet lock.
- inlet lock and / or the outlet lock is characterized by in each case at least two blocking elements, between which a load cross-piece can be arranged with the component to be treated.
- the blocking elements are preferably synchronously actuatable in such a way that at least one of the blocking elements always keeps the lock closed during operation of the blasting system. Accordingly, inlet and / or outlet sluice are designed so that the opposite openings of a flow chamber during operation never together, but always opened separately.
- Component in the inlet lock another component to be treated within the blasting system without blasting material penetrates into the inlet lock. b) closing the input blocking element and opening the output blocking element; c) Transport of the load crosshead with the component in the blasting machine and treatment of the
- FIG. 2 shows a side view of a second embodiment of a device according to the invention for carrying out the method according to the invention
- FIG. Fig. 3 is a plan view of a device according to Figures 1 or 2
- 4 shows in the partial images a) to c) a representation of blasting means
- FIG. 5 shows in the partial images a) and b) a lateral representation of a surface to be processed prior to processing a) and after processing b);
- FIG. 6 shows in the partial images a) and b) a lateral representation of a surface a) to be machined and the machined surface b).
- Fig. 7 is a schematic representation of a erf ⁇ ndungshielen treatment sequence in a
- FIG. 8 shows a view of the device shown in FIG. 7 perpendicular to the transport direction;
- FIG. and FIG. 9 shows an arrangement of plant components according to the present invention;
- FIG. 10 shows a representation of the processing of rectangular areas.
- FIG. 1 shows in a purely schematic side view a component to be machined, e.g. an MDF board 1, which is mounted in a holder, e.g. Clamping device 2 is recorded and held.
- 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 irradiate a jet 9, which comprises blasting agent, at a shallow angle ⁇ onto the surface of the component 1.
- two opposing jet nozzles 3 are shown, which direct the jet 9 towards each other onto 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 can be seen for example in Figure 3 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 can first be pivotable about an axis of rotation parallel to the surface of the component 1 to be machined, so that the beam angle or angle of incidence ⁇ is within a certain range, for example in one region from 0 ° to 60 °, 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. Furthermore, a pivoting or rotation about an axis of rotation perpendicular to the surface to be processed can take place, so that the angle of incidence ⁇ , as can be seen in FIG. 3, can be changed. 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.
- 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 exemplary embodiment of FIG. 1 are compressed air or compressed air nozzles 3, in which compressed air generated in a compressed air product device 8, which is supplied to the nozzle arrangement 3 via a supply line 7, 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 Figure 2 differs from that of Figure 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 numeral as that of the embodiment of Figure 1.
- the jet assembly 12 of Figure 2 is a centrifugal turbine having 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 Fig. 1, as by the blast wheel 12, the blasting agent can be applied to the surface of the component 1 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 plan view of the arrangement of the jet arrangements 3 and 12 around the component 1 to be processed.
- two Strahlan- orders 3 and 12 are provided on two adjacent sides of an MDF plate 1, which are perpendicular to each other, the ß at different angles of incidence, the surfaces of the component 1 can irradiate.
- 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 shows in the partial images a) to c) possible forms of blasting agents.
- spherical shapes (partial image b)) are usually used.
- 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 globules 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) and also coated or painted surfaces (FIG. 6).
- wood surfaces it is usually the case that wood fibers protrude from the surface.
- This is shown schematically by the wood fibers 14 shown on the component 1 in partial image a) of FIG. 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.
- a lacquer layer 16 with tips 17, as can be seen in the partial image a) of FIG. 6, on the component 1 is changed by the blasting treatment at a flat angle of incidence such that the peaks 18 of the coating layer 16 are leveled on the component 1 (see drawing b) of Figure 6).
- FIG. 7 schematically shows a further treatment device 100 for grinding and / or polishing a component 200.
- 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 beams 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 also treated with blasting agent jets which of jet turbines or pressure jet nozzles 106 and 107 or 106 'and 107', respectively.
- blasting agent jets which 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 designed essentially 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), partial regions of the planar surfaces, which are arranged parallel to the main transport direction T 'and parallel to the transport direction T, are 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 component of the beam S parallel to the transport plane is aligned in the direction of the transport direction.
- 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.
- 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 aligned opposite to the transport direction.
- the system may, in particular the process stations 108 and 110 regarding, be equipped on both sides symmetric to the transport direction T with blasting devices, so that both
- the process stations 108 and 110 may also be integrated into a single process station. 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 ⁇ 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 it is prevented that blasting agents escape from the blasting system 113 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 1 17, which can optionally be 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 ceremoniessblockieriata 117 and inssblockier 1933 116 are arranged on a revolving endless belt, so that they make the appropriate closing and opening operations in the correct cycle with the speed of movement of the component to be machined 200.
- the exemplary embodiment of FIG. 9 shows that two input blocking elements 116 and output blocking elements 117 are provided for each input and output lock, which complement each other in the manner of folding elements, comparable to the doors of a double door.
- other opening and closing elements are conceivable.
- FIG. 10 shows a cuboid having a main surface F1 and the end faces F2 and F3. With respect to these surfaces F1 to F3, the beams 300 to 305 which process the respective surfaces are shown.
- the surface F1 is processed by the beams 300 and 301, which are formed parallel to the longitudinal edges between the surfaces F1 and F1 or the corresponding bottom surface. Concerning.
- the processing beam 300 as well as the processing beam 301 can process the surface Fl up to the edge region, since blasting agents projecting beyond the edge do not hit the surface F2 arranged perpendicular to the surface Fl 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 Fl and F3 is not critical, since the surface F3 lies in the shading area.
- the beam 301 the same applies to the beam 301.
- the beam 300 is critical, since excess, the surface Fl not meeting beam particles would impinge at too large an angle to 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 Fl and F3.
- the beams 302 and 303 or 304 and 305 and dashed lines shown there which mark the end of the impact area.
- Concerning. of the beams 300 to 303 may occur in a transport Direction according to the arrow T, the beam arrangements are set stationary, since by the matched to the movement of the component starting and stopping the irradiation of the radiation area can be defined.
- 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.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
Description
Claims
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 true EP2132001A2 (en) | 2009-12-16 |
EP2132001B1 EP2132001B1 (en) | 2014-10-01 |
Family
ID=39522008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08717057.7A Not-in-force EP2132001B1 (en) | 2007-02-23 | 2008-02-22 | Method for grinding and polishing wooden materials |
Country Status (6)
Country | Link |
---|---|
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)
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 |
CN111485226A (en) | 2012-07-27 | 2020-08-04 | 应用材料公司 | 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 |
Family Cites Families (18)
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 |
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 |
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 |
EP1121225A1 (en) * | 1999-08-18 | 2001-08-08 | Koninklijke Philips Electronics N.V. | Method of obtaining a pattern of concave spaces or apertures in a plate |
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 |
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 |
-
2008
- 2008-02-22 RU RU2009133827/02A patent/RU2009133827A/en not_active Application Discontinuation
- 2008-02-22 PL PL08717057T patent/PL2132001T3/en unknown
- 2008-02-22 EP EP08717057.7A patent/EP2132001B1/en not_active Not-in-force
- 2008-02-22 US US12/527,596 patent/US8920212B2/en not_active Expired - Fee Related
- 2008-02-22 DK DK08717057.7T patent/DK2132001T3/en active
- 2008-02-22 WO PCT/EP2008/052196 patent/WO2008102010A2/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2008102010A2 * |
Also Published As
Publication number | Publication date |
---|---|
EP2132001B1 (en) | 2014-10-01 |
PL2132001T3 (en) | 2015-06-30 |
WO2008102010A2 (en) | 2008-08-28 |
US20110135877A1 (en) | 2011-06-09 |
WO2008102010A3 (en) | 2009-05-07 |
DK2132001T3 (en) | 2015-01-05 |
RU2009133827A (en) | 2011-03-27 |
US8920212B2 (en) | 2014-12-30 |
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