EP3178605B1 - Dispositif de post-traitement d'au moins une pièce à usiner en forme de plaque - Google Patents

Dispositif de post-traitement d'au moins une pièce à usiner en forme de plaque Download PDF

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Publication number
EP3178605B1
EP3178605B1 EP16202620.7A EP16202620A EP3178605B1 EP 3178605 B1 EP3178605 B1 EP 3178605B1 EP 16202620 A EP16202620 A EP 16202620A EP 3178605 B1 EP3178605 B1 EP 3178605B1
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EP
European Patent Office
Prior art keywords
brush
workpiece
belt
brush belt
treatment fluid
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EP16202620.7A
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German (de)
English (en)
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EP3178605A1 (fr
Inventor
Daniel Ludewig
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LCM GmbH
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LCM GmbH
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Priority to PL16202620T priority Critical patent/PL3178605T3/pl
Publication of EP3178605A1 publication Critical patent/EP3178605A1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/18—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of wood
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
    • B24B29/005—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents using brushes

Definitions

  • the present invention relates to a device for reworking at least one plate-shaped workpiece which is provided with an edge band on at least one narrow side, a method for processing at least one plate-shaped workpiece in a continuous process and the use of at least one brush unit with at least one brush tool for removing a release agent from at least a broad side of a plate-shaped workpiece or of an edge band attached to at least one narrow side of the workpiece.
  • edge band It is known that furniture panels made of wood or a wood material are coated on the edge side or on their narrow side with a so-called edge band. In modern furniture manufacturing companies, this is usually done by means of a machine that processes at least one furniture panel in a continuous process. Such machines are also referred to as throughfeed machines and / or edge banding machines. Within this machine, the furniture panel is moved progressively from one processing station to the next, for example by means of at least one conveyor belt (continuously). The furniture board thus runs through the machine.
  • the edge band also serves, in particular, to improve the appearance of the furniture panel and here complements the decorative layer that is regularly present on the upper and / or lower broad side of the furniture panel.
  • the wooden core of the furniture board is protected by the edge tape and the decorative layers.
  • the edge band is usually made of polishable plastic, such as. B. acrylic or the like and can be adhesive on at least one side by a thermal treatment, the thermal treatment for example by means of at least one laser beam or by means of plasma jets. Alternatively or cumulatively, an adhesive can be applied to the edge band and / or the narrow side of the furniture panel before it is attached.
  • edge band When attaching the edge band or when coating the narrow side of the furniture panel with the edge band, however, it should be prevented that the decorative layer already present on the underside and / or the top broad side of the furniture panel is damaged and / or permanently contaminated. In this context, it is particularly important to ensure that adhesive residues and / or material (adhesive and / or liquefied or melted plastic) emerging from the adhesive joint between the edge band and furniture panel cannot or cannot permanently adhere to the decorative layer (s) .
  • a release agent is usually applied at least to partial areas of the underside and / or top side of the furniture panel at the beginning of the production process.
  • the release agent is applied here at least in an edge area of the broad side associated with the edge band to be applied, in order to prevent adhesive from sticking in this edge-side partial area of the broad side. It was possible to achieve particularly good results with release agents that adhere relatively strongly or firmly to the surface of the furniture panel.
  • the edge band when attaching the edge band to the narrow side of the furniture panel, it must be taken into account that these workpieces generally have certain unevenness, so-called thickness tolerances. Because of these thickness tolerances of a respective furniture panel, the width of the edge band to be attached cannot be adapted exactly to the thickness or height of the furniture panel from the outset. Rather, the edge band is usually first attached to the narrow side of the furniture board with an overhang provided transversely to the longitudinal extension of the edge band, so that a certain projection remains on the top and / or underside of the furniture panel after the edge band has been glued in order to always completely cover the panel edge or the Ensure narrow side of the furniture board.
  • This overhang must then be removed again in a subsequent processing step.
  • suitable cutting tools such as milling cutters, scrapers or the like are usually used.
  • these cutting tools can impair or damage the visible surface of the edgeband.
  • it can, for. B. to an increased surface roughness and / or a matting of the visible surface of the edge band. Therefore, a further processing step should follow the metal removal, which processes the visible surface of the edge band again in accordance with the optical requirements for a surface of the edge band that is as flawless as possible and / or shiny.
  • the EP 1 215 010 A2 relates to a grinding device for grinding a plate-shaped or strip-shaped workpiece, in particular having a profiled surface, preferably made of wood or a wood-based material, with a rotating grinding belt guided over at least two deflecting rollers.
  • a device for post-processing an edge strip applied to the narrow sides of plate-shaped workpieces made of a plastic material that can be polished for the purpose of surface finishing of the edge strip, the device being part of a machine that processes the workpieces in a continuous process and approaches the edge strips on the narrow sides of the workpiece.
  • From the DE 102 01 680 A1 discloses a method for processing pieces of furniture, in particular for processing the edges of pieces of furniture, in particular for reworking applied plastic edges, with a driven rotary tool, in particular a grinding star.
  • At least one device, a method and a use are intended to be specified, each of which enables the most efficient, cost-effective, mechanical and / or preferably complete removal of a release agent from an item of furniture.
  • at least the device that The method and / or the use may also be suitable for processing, in particular polishing, at least a partial area of the visible surface of the edge band in addition to and / or at the same time as removing the release agent.
  • a device for finishing at least one panel-shaped workpiece, in particular a furniture panel, which is provided or coated with an edge band on at least one narrow side.
  • the device can be arranged or arranged in a machine that processes the workpiece continuously and, viewed in the direction of passage, downstream of a cutting tool of the machine, which can remove a protrusion of the edge band present transversely to the longitudinal extension of the edge band.
  • the device has at least one brush unit with at least one brush tool and at least one fluid application device.
  • the brush tool has at least one brush belt.
  • the brush belt has a straight contact area and at least one, in particular at least two or even (precisely) two, curved area (s).
  • the fluid application device has at least one nozzle which is provided and set up for discharging a treatment fluid.
  • the treatment fluid preferably comprises a cleaning agent and / or a polishing agent.
  • the treatment fluid is particularly preferably essentially solvent-free and / or contains only very few, preferably no, volatile organic compounds (VOCs).
  • VOCs volatile organic compounds
  • the treatment fluid is formed in such a way that it remains flowable for a certain time and / or for a certain distance, in particular with a (high) heat input due to friction between the brush belt and the workpiece.
  • the distance can relate to a distance along the circumference of the brush belt.
  • the path viewed in the circumferential direction of the brush belt, is defined between a point of application of the treatment fluid on the brush belt in the curved area and an end of the contact area of the straight contact area.
  • the cleaning agent preferably remains at least partially flowable along the route or over the route. In other words, this means in particular that the treatment fluid does not (completely) evaporate over the distance or as long as it traverses the distance.
  • the treatment fluid (or its liquid and / or volatile constituents) remains flowable over at least half of the distance.
  • the composition of the treatment fluid and the route are very particularly preferably coordinated with one another in such a way that the treatment fluid (only) has evaporated (predominantly or even completely) when the end of the route is reached.
  • the present solution makes it possible in an advantageous manner that essentially solvent-free treatment fluids and / or treatment fluids with only very few, preferably no, volatile organic compounds can be used for machining or reworking a plate-shaped workpiece.
  • solvent-free treatment fluids it should be noted that these evaporate significantly more slowly than solvent-containing treatment fluids.
  • solvent-free liquids are often not sufficiently evaporated during polishing and that undesired residues form on the surface to be processed. Such undesired residues can advantageously be avoided with the solution proposed here.
  • the treatment fluid comprises a cleaning agent
  • this can be provided or set up for the preferably complete removal of a separating agent.
  • the application of the cleaning agent to the workpiece by means of the device presented here serves in particular to apply a previously to the workpiece before or during a subsequent polishing step or in front of a downstream (second) device in which a polishing agent is applied to a (second) brush belt to remove applied release agent and / or glue residue from the workpiece.
  • the cleaning agent also particularly preferably serves to cool the edge band and / or the glue joint.
  • the cleaning agent preferably comprises at least ethanol, acetone or propan-2-ol (isopropanol).
  • the cleaning agent is particularly preferably formed with a mixture comprising ethanol, acetone and propan-2-ol, with ethanol being able to form the largest proportion of the mixture. If the treatment fluid comprises a polishing agent, this can be provided and set up for producing a high gloss.
  • the polishing agent can have a viscous or pasty consistency.
  • At least two of the devices presented here are preferably one behind the other in the flow direction arranged.
  • a cleaning agent can be applied to the brush belt in a first device and a polishing agent in a second (subsequent) device.
  • the devices can thus fulfill different functions, cleaning, in particular at least partial removal of separating agent, and polishing of certain areas of the workpiece by means of the first device.
  • the (first) device presented here can already contribute to a surface improvement of a visible surface of the edge band and / or a decorative layer of the workpiece.
  • the movement of the brush belt along the workpiece can lead to a (first) leveling of unevenness produced by the cutting tool and / or to a (first) polishing of a visible surface of the edgeband, in particular a radius of the edgeband to a surface (decorative layer) of the workpiece , contribute.
  • the polishing agent can serve to polish a visible surface of the edge band, in particular a radius of the edge band towards a surface (decorative layer) of the workpiece, to a high gloss.
  • the nozzle of the fluid application device is held or attached to the brush unit.
  • the fluid application device is preferably held or attached to a cover of the brush assembly.
  • the cover can be provided and configured to form a splash guard around the brush belt.
  • the cover extends at least over a portion of the circumference of the Brush bands.
  • the fluid application device preferably comprises a compressed air connection and at least one treatment fluid connection.
  • the nozzle has at least one nozzle opening for discharging the treatment fluid.
  • the treatment fluid is preferably discharged by means of a compressed air supplied to the nozzle.
  • the fluid application device can particularly preferably be provided and set up to form an aerosol and to discharge it through the nozzle.
  • a metering device is preferably assigned to the fluid application device.
  • the metering device can be connected upstream of the fluid application device or integrated into the fluid application device.
  • the metering device preferably comprises at least one (metering) valve that can be controlled as required.
  • the treatment fluid can be fed to the fluid application device or the metering device via a feed line, in particular a pressure line.
  • the supply line can be connected to a storage container for the treatment fluid.
  • a feed pump is regularly arranged in the feed line. The feed pump is preferably inserted into the supply line near the storage container.
  • the actuation of the fluid application device or the control of the metering device can take place electrically or pneumatically.
  • the fluid application device or the metering device is preferably connected to a compressed air source via a compressed air line.
  • the compressed air line can be connected to an electrically actuatable or controllable (metering) valve.
  • an electrically actuatable valve can be assigned or connected downstream of a compressed air inlet of the metering device or the through-air connection of the fluid application device.
  • the (metering) valve is preferably integrated into the metering device.
  • the polishing agent can also be conveyed pneumatically from the storage container via the supply line, in particular via the pressure line, to the fluid application device or metering device.
  • compressed air can be applied to the storage container and connected to the compressed air line via a pressure regulator.
  • At least one nozzle opening of the nozzle is oriented towards the (or one of the) curved region (s) of the brush belt.
  • the nozzle is preferably designed in the manner of a spray tube, in particular with at least one lateral nozzle opening.
  • At least one nozzle opening is particularly preferably formed in a jacket surface of the spray tube and oriented towards the brush belt.
  • the nozzle, in particular the spray tube preferably spans at least a partial area of a brush belt width of the brush belt.
  • the arrangement of the nozzle in the area of curvature has the particular advantage that the treatment fluid can also be introduced or penetrate into gaps between the bristles or bristle units of the brush belt. As a result, very good and intimate wetting of the bristles or bristle units can take place in an advantageous manner.
  • An application of the treatment fluid in the curvature area enables in particular that, viewed in the circumferential direction of the brush belt, between an application point in the curvature area and a contact area start of the straight contact area of the brush belt, the wetting of the brush belt with the treatment fluid is essentially or almost completely maintained.
  • the arrangement of the nozzle in the area of curvature can in particular have the advantage that at least part of the treatment fluid is also released towards the edge band, i.e. in particular also directly reaches the edge band and / or a gap between the edge band and brush band (near the contact area of the two with one another).
  • the device comprises at least one adjusting device.
  • the brush unit can be moved towards and away from the workpiece by means of the adjusting device.
  • the device preferably has two brush units, each with a brush tool.
  • the brush unit can also comprise a drive motor that drives the brush tool during operation.
  • the device also preferably has two adjusting devices, each of which is assigned to a brush unit.
  • the brush tool is preferably a brush belt.
  • the brush belt can be better suited for removing separating agent and / or better for polishing the edge band.
  • the nature of the brush strip is preferably designed in such a way that it is suitable and intended both for removing separating agent and for polishing at least a partial area of a visible surface of the edge strip.
  • the brushing tool is not a (pure) polishing brush, polishing buff, polishing disc, polishing tape or the like. Such pure polishing tools are not particularly suitable for the efficient and complete removal of the release agent. Accordingly, the solution proposed here explicitly turns away from such pure polishing tools in particular.
  • the brush tool, in particular the brush belt preferably comprises a plurality of different bristles or bristle units, wherein a single bristle or bristle unit z. B.
  • the bristle units and / or lamellas preferably comprise at least one configuration from the following group: sisal fabric, felt, cotton fabric, fleece, cloth, leather and / or foam. Gaps are particularly preferably provided between the bristle units or lamellae.
  • the bristles or bristle units are preferably arranged on a carrier tape.
  • the bristles or bristle units are particularly preferably glued to the carrier tape.
  • the carrier tape can advantageously be formed with a toothed belt.
  • the (inwardly directed) teeth of the toothed belt can engage in a corresponding tooth profile on the outer surface of a drive roller and / or a tensioning roller to drive the brush belt. If the carrier belt or the belt of the brush belt is designed as a toothed belt, this has the particular advantage that an unwanted slipping of the brush belt can be avoided, in particular when the belt tension is low.
  • the formation of the carrier tape as a toothed belt thus advantageously enables a uniform processing result.
  • a brush belt which, viewed in the circumferential direction, has one of the following sequences of bristle units that are repeated along the circumference: cloth or lamella, sisal fabric, felt; (or) cloth or lamella, felt, sisal fabric.
  • a cloth can be used to form the lamella.
  • the cloth in the lamella ensures that the previously applied cleaning agent is quickly absorbed.
  • the sisal is used in particular to polish the edge band.
  • the brush belt presented here has the particular advantage that it offers high stability when rotating in the brush tool.
  • the brush belt allows, in particular because of the proposed here Sequence and / or design of the bristle units, smooth running and low noise emissions.
  • the at least one brush unit can preferably be moved towards and away from the workpiece by means of the actuating device.
  • the brush unit can be moved in a translatory and / or rotatory manner by means of the actuating device, e.g. B. adjustable in height and / or pivotable.
  • the adjusting device offers the particular advantage that the position of the brush unit in relation to the workpiece surface to be processed can be continuously adjusted or adjusted.
  • the adjusting device can be used to adjust tolerances and / or local properties of the workpiece, eg. B. thickness tolerances of a furniture board, to be considered and possibly even to compensate.
  • the brush unit can preferably be moved in translation by means of the actuating device.
  • the adjusting device can provide a height adjustment of the brush unit.
  • the adjusting device preferably has at least one spindle drive and / or at least one, in particular electronically drivable, threaded spindle or movement screw or the like.
  • the device has two brush units, the brush tools of the brush units being oriented differently in relation to the direction of passage.
  • the brush tools are preferably aligned skewed to one another.
  • Such an alignment of the brush tools can enable a parallel or simultaneous removal of separating agents from partial areas of an upper and lower broad side of the workpiece and also a parallel or simultaneous processing, in particular polishing, of at least a partial area of a visible surface of an edge band attached to a narrow side of the workpiece .
  • the brush unit have a pivoting device, in particular at least one joint, for pivoting the brushing tool, the brushing tool being fixable in at least one pivoted position.
  • the pivoting device is preferably designed such that the brushing tool can be pivoted in at least two planes (which are orthogonal to one another).
  • the swivel device is a so-called two-axis swivel device which allows swiveling about two axes (aligned perpendicular to one another and / or intersecting).
  • the pivot device can with fixing means, for. B. screws, clamps, bolts, cotter pins or the like to fix the brush tool in the desired pivoted position.
  • the brush tool has at least one brush belt guided between a drive roller and a tensioning roller.
  • the tension pulley is used to tension the brush belt.
  • the drive roller and the tensioning roller are preferably held on a common (elongate) plate or frame of the brush unit.
  • the tensioning roller is preferably spring-loaded and can be moved in a translatory manner in relation to the drive roller. As a result, the brush belt can be exchanged very quickly in a particularly advantageous manner.
  • the brush belt viewed in the circumferential direction of the brush belt, be (only) partially formed with bristles pointing outwards.
  • the brush belt is preferably formed completely with outwardly pointing bristles.
  • the brush belt is particularly preferably formed in multiple rows transversely to its circumferential direction with outwardly pointing bristles.
  • the bristles are preferably oriented obliquely (but not perpendicularly) in relation to the brush belt.
  • the brush unit can be moved towards the workpiece in such a way that the brush tool at least partially comes into (direct) contact both with a broad side of the workpiece and with the edge band applied to the narrow side.
  • Such a movement can result from the fact that the brush tool of the brush unit is pivoted to the direction of passage by means of the pivoting device (and fixed in the pivoted position) and the brush unit is pivoted to the workpiece (from bottom to top or from top to bottom) by means of the adjusting device (translationally) ) is approached.
  • Moving the brush unit in this way has the advantage that the brushing tool moved up to the workpiece in this way makes it possible, in addition to and / or parallel to the removal of the separating agent, to process at least part of the visible surface of the edge band, in particular to polish it.
  • the device can have at least one polishing agent addition device. This can be set up and intended to bring the brushing tool into contact with a polishing agent, in particular a polishing compound.
  • the polishing agent can be a hard wax or a (viscous) liquid or pasty polishing agent.
  • a hard wax can be (spring) biased against the brush tool and / or a liquid or pasty polishing agent can be sprayed onto the brush tool.
  • the device presented here in particular the at least one brush unit, the fluid application device and / or the actuating device can or can for automating the post-processing of the at least one plate-shaped Workpiece can be connected or linked to a program control (overall control) of the machine (throughfeed machine) processing the workpiece in a continuous process, in particular via data lines and / or radio links.
  • the device can have its own electronic control unit (ECU). This can contribute to the fact that the device can also be easily integrated as a retrofit component in an existing throughfeed machine.
  • the electronic control unit of the device can optionally be provided and set up to exchange data with the program control of the throughfeed machine and / or to obtain data from it.
  • the device can be equipped with at least one sensor for detecting an operating point parameter.
  • an operating point parameter is representative of the respective operating state of the device and / or the throughfeed machine.
  • Preferred operating point parameters are the (local) thickness of the workpiece to be processed, in particular the local panel thickness of a furniture panel, the temperature of an adhesive joint and / or the edge band, the presence of a workpiece in the area of the device or the like.
  • a driver or a driver roller which is provided and set up to detect a local thickness of the workpiece can serve as a sensor.
  • the local thickness of the workpiece is preferably measured (directly) before the workpiece enters the device, so that the height of the at least one brush unit can be adapted to the local position of the top or bottom of the workpiece to be processed.
  • the device can have a sensor which is provided and set up to record or detect the presence of a workpiece in the area of the device.
  • a light barrier or the like, for example, can be used for this purpose.
  • the electronic control unit of the device is preferably provided and set up to operate the device as a function of at least one detected operating point parameter.
  • the control unit can, for example, switch on the device (only) if the presence of a workpiece has been detected in the area of the device.
  • the control unit is preferably set up to operate or switch on the fluid application device (only) when the presence of a workpiece has been detected in the area of the device and / or a high temperature of the adhesive joint and / or the edgeband has been measured.
  • the control unit can be set up to move the at least one brush unit towards or away from the workpiece by means of the actuating device as a function of a local workpiece thickness.
  • the brush unit can comprise a coupling for the transmission of force and / or torque between the drive motor and the brush tool.
  • the clutch can be provided and set up to provide a damped, in particular torsional vibration damped, force and / or torque transmission and / or to at least partially absorb shocks occurring during operation.
  • the coupling is preferably a claw coupling.
  • the claw coupling particularly preferably has an elastic ring gear.
  • the treatment fluid (or its liquid and / or volatile constituents) essentially does not evaporate over at least half of the distance.
  • the treatment fluid is preferably applied by means of the brush belt in step b) both to a partial area of a broad side of the workpiece and to a visible surface, in particular a radius, of the edge band.
  • Process steps a) to c) can be repeated continuously.
  • Method steps a) to c) can also be carried out or repeated at least partially in parallel in time.
  • the release agent is preferably applied in step a) by means of at least one spray device, in particular a nozzle, which is particularly preferably arranged in the inlet area of a machine that processes a workpiece in a continuous flow.
  • the release agent is applied to an edge region of the upper and / or lower broad side of the workpiece that is assigned to the edge band to be fastened.
  • a release agent is understood here to mean a (liquid) agent that prevents adhesive substances from sticking, such as. B. adhesives, molten plastic or the like, prevented on a surface wetted with the release agent. This liquid separating agent prevents glue or adhesive residues emerging from the side of the board from adhering to the surface of the board when the edges are coated, so that subsequent cleaning is made possible.
  • the devices proposed here are also particularly suitable for release agents that have a high evaporation rate and thus stick for a long time or also partially stick with chips.
  • step b) the edge band is glued to the at least one narrow side, the applied separating agent preventing the adhesive from sticking to the broad side of the workpiece and wherein in step c) the treatment fluid is applied in the area of curvature the brush belt is applied.
  • the edge band is preferably fastened in step b) by means of an input of heat or a thermal treatment, for example by means of at least one laser beam or by means of plasma jets. More preferably, in step b) (cumulatively) the edge band is pressed against the narrow side of the workpiece by means of a pressure roller.
  • the release agent be removed in step c) by means of a device proposed here.
  • a device proposed here Preferably, in step c) both a removal of the release agent from at least one broad side of the workpiece and a processing, in particular polishing, of at least a partial area of a visible surface of the (plastic) edgeband takes place.
  • the device for post-processing also comprises at least one adjusting device, wherein the brush unit can be moved towards and away from the workpiece by means of the adjusting device.
  • the overhangs of the edge band present transversely to the longitudinal extension of the edge band are removed.
  • This can be done by means of at least one cutting tool, such as. B. an (edge) cutter, scraper or the like.
  • a (non-manual or manual) use of at least one brushing unit with at least one brushing tool for the (automatic) removal of a release agent from at least one broad side of a plate-shaped workpiece, in particular a piece of furniture, or from a (plastic) attached to at least one narrow side of the workpiece ) Edging tape proposed, the brush tool having at least one brush tape to remove the release agent.
  • a device proposed here is preferably used, in particular within a machine that processes a workpiece in a continuous process.
  • the at least one brush unit is furthermore preferably used both for removing the release agent and for polishing the edge band.
  • Fig. 1 schematically shows a machine 5 processing a plate-shaped workpiece 2 in a through-feed.
  • the plate-shaped workpiece 2 is here, for example, a furniture panel.
  • An edge band 4 is attached to the narrow side 3 of the workpiece 2 by means of the machine 5.
  • the workpiece 2 runs through the machine 5 in a direction of passage 6, the machine 5 here having two conveyor belts 20, between which the workpiece 2 can be moved progressively in the run.
  • a separating agent 17 is first applied to the broad sides 16 of the plate-shaped workpiece 2 by means of spray devices 19.
  • the parting agent 17 is intended to prevent adhesive agents, for example an adhesive, from sticking to the broad sides 16 of the workpiece 2.
  • an adhesive is regularly required on the narrow sides 3 of the workpiece 2 in order to bond the edge band 4 to the workpiece 2 in a materially bonded manner.
  • the release agent application by means of the spray devices 19 is followed by various processing stations that process the workpiece 2 in a continuous flow.
  • the as yet uncoated edges on the narrow side 3 of the workpiece 2 are machined with format milling cutters 23.
  • a previously heated edge band 4 is pressed against the narrow side 3 of the workpiece 2 by means of a pressure roller 24, with a material connection of the edge band 4 to the narrow side 3 of the workpiece 2, preferably by laser or plasma jets, with which the example is at least one-sided adhesive Edge band 4 can be heated until the adhesive is activated.
  • the edge band 4 is usually attached to the narrow side 3 with an overhang protruding upwards and downwards beyond the workpiece 2.
  • This protrusion is then roughly removed or ablated by means of trimming devices 21, such as chop saws, and then precisely, by means of cutting tools 7, in particular by means of edge milling cutters, which are adjusted depending on the local thickness (height) of the workpiece 2.
  • a device 1 is used for reworking the workpiece 2, the device 1 according to the illustration Fig. 1 is arranged in the machine 5 machining the workpiece 2 in throughfeed and viewed in the throughfeed direction 6 downstream of the cutting tool 7 of the machine 5. It is shown that the device 1 comprises two brush units 8, each with a brush tool 9 and two actuating devices 10. Thus, each brush unit 8 can be moved towards and away from the workpiece 2 (translationally) by means of the associated adjusting device 10.
  • the actuating devices 10 are in operative connection with a control unit 25.
  • the adjusting devices 10 are formed here by way of example by means of threaded spindles or movement screws, along which the brush assemblies 8 can move up or down (independently of one another).
  • the control assembly 25 is formed here with two electric motors each driving a threaded spindle and an electronic control unit.
  • each brush unit 8 is designed with a pivoting device 11. It is also shown that each brush unit 8 is designed with an electronic drive motor 22 and each brush tool 9 driven thereby is designed with a brush belt 14. Depending on the nature and orientation of the brush belt 14, the brush belt 14 can be used at the same time to remove the separating agent 17 and to polish the edge belt 4.
  • Fig. 2 shows a schematic side view of a device 1 for finishing at least one plate-shaped workpiece 2.
  • a partial area 18 (edge area) of the broad sides 16 of the workpiece 2 the separating agent 17, which is applied to both the upper and lower broad sides 16, is closed detect.
  • An edge band 4 is attached to the narrow side 3 of the workpiece 2.
  • the device 1 is formed with two brush units 8 and two actuating devices 10.
  • the adjusting devices 10 are used here to adjust the height of the brush units 8 so that they can be moved as precisely as possible to the surface of the workpiece 2 to be processed.
  • the brush assemblies 8 are formed by drive motors 22 and brush tools 9, the brush tools 9 each having a driven brush belt 14.
  • the brush belts 14 are designed with bristles 15 to remove the separating agent 17.
  • each brush unit 8 has a pivot device 11 for pivoting the brush tool 9, the brush tool 9 being fixable in at least one pivoted position.
  • the brush tools 9 can be aligned very variably with respect to the workpiece 2 to be machined.
  • the release agent 17 is removed and the visible areas of the edge band 4 are at least partially polished.
  • Fig. 3 shows schematically a brush unit 8, the view here from the front being directed to the one brush tool 9 of the brush unit 8.
  • the brush tool 9 has a brush belt 14 guided between a drive roller 12 and a tension roller 13.
  • the drive roller 12 is connected to an electronic drive motor 22. It is shown by way of example that the brush belt 14, viewed in the circumferential direction of the brush belt 14, is only partially formed with bristles 15 pointing outward.
  • a pivoting device 11 for pivoting the brushing tool 9 (by means of hidden edges) is shown.
  • Fig. 4 schematically shows a perspective view of a device 1 for finishing at least one plate-shaped workpiece 2.
  • the view here is directed to the device 1 from the side and from the front.
  • Two brush assemblies 8 can be seen, each of which has a brush tool 9 connected to a drive motor 22.
  • the brush belts 14 have been omitted here to illustrate the design of the drive rollers 12 and the tensioning rollers 13.
  • Both brushing tools 9 are pivoted by means of pivoting devices 11 and are fixed in such a way that the brushing tools 9 are oriented differently in relation to a direction of passage 6 of a workpiece 2 to be processed. It can also be seen that the height of the brush assemblies 8 can be adjusted or moved by means of adjusting devices 10.
  • Fig. 5 shows schematically a further perspective view of a device 1 for finishing at least one plate-shaped workpiece 2.
  • the view from behind is directed to the device 1.
  • the pivoting devices 11 are set up for this purpose and determined to be able to align the brushing tools 9 in fixable positions, skewed to one another.
  • the alignment of the brushing tools 9 by means of the pivoting devices 11 allows the brushing units 8 to be moved towards the workpiece 2 in such a way that the brushing tools 9 at least partially both with a broad side 16 of the workpiece 2 and with the edge band 4 applied to the narrow side 3 can get in touch.
  • the actuating devices 10 are designed with threaded spindles 26.
  • the device, the method and the use each enable the most efficient, cost-effective, mechanical and preferably complete removal of a release agent from an item of furniture to be achieved.
  • the device, the method and the use are also suitable for processing, in particular polishing, at least a partial area of the visible surface of the edge band in addition to and / or parallel to the removal of the release agent.
  • Fig. 6 shows schematically a perspective view of a brush unit 8.
  • the brush unit 8 has a brush tool 9 connected to a drive motor 22.
  • the brush tool 9 has a brush belt 14 guided between a drive roller 12 and a tension roller 13.
  • the drive roller 12 is connected to an electronic drive motor 22.
  • the brush belt 14 has a straight contact area 30 and two curved areas 31.
  • a fluid application device 27 is fastened to a cover 37 of the brush assembly 8.
  • the fluid application device 27 has a nozzle 28 which is formed, for example, in the manner of a spray tube.
  • the nozzle 28 is clearly assigned to one of the two curved regions 31.
  • the brush belt 14 is formed circumferentially with a plurality of bristle units 38 which are glued onto a carrier tape 39.
  • the carrier tape 39 is formed here by way of example with a preferred toothed belt.
  • Fig. 7 shows schematically an illustration of a brush belt 14 in a side view.
  • the brush belt 14 here comprises two curved areas 31 and a straight contact area 30, which is intended to come into contact with the workpiece to be processed.
  • a circumferential direction 40 of the brush belt 14 is also entered.
  • the bristle units 38 of the brush belt 14 can move in this circumferential direction 40 (or in the opposite direction), for example, when the brush belt 14 is in operation.
  • a contact area start 36 and a contact area end 34 of the straight contact area 30 of the brush strip 14 are marked with black dots.
  • an application point 33 is highlighted with a black point. It is shown schematically that a nozzle 28 is oriented towards the application site 33.
  • a path 35 is defined between the application point 33 and the start of the contact area 36.
  • FIG. 7 A treatment fluid 29 is applied to the brush belt 14 in the curved area 31 of the brush belt 14.
  • the brush belt 14, viewed in the circumferential direction 40 of the brush belt 14 runs through the path 35 between the application site 33 and the contact area end 34
  • Fig. 7 indicated that the brush belt 14, viewed in the circumferential direction 40, has the following sequences of bristle units 38: lamella 41, felt 42, sisal fabric 43. This sequence can be repeated along the circumference 40.
  • Fig. 8 shows a perspective detailed view of the brush unit 8 from Fig. 6 . It is shown that the nozzle 28 of the fluid application device 27 is attached to the cover 37 of the brush unit 8 is held or attached.
  • the fluid application device 27 here comprises a compressed air connection 44 and a treatment fluid connection 45.
  • the nozzle 28 is formed, for example, in the manner of a spray tube and spans a brush belt width 46 of the brush belt 14.
  • Fig. 9 shows a further perspective detailed view of the brush unit 8 from Fig. 6 . It can be seen that the nozzle 28 has a nozzle opening 32 which is aligned with the curved region 31 of the brush belt 14.
  • Fig. 10 shows an exploded view of a coupling 47 which can be used in a device (not shown) proposed here.
  • the coupling 47 is designed here as a claw coupling, for example.
  • the coupling 47 has a first hub 48, a second hub 49 and a ring gear 50 arranged between them.
  • the clutch 47 can be used in a brush unit (not shown here) of the device proposed here for transmitting force and / or torque between the drive motor (not shown here) and the brushing tool (not shown here) of the brush unit.
  • the first hub 48 can be connected to a motor shaft (not shown here) of the drive motor (non-rotatable) and the second hub 49 to a drive shaft (not shown here) of the drive roller (not shown here) of the brush unit (non-rotatable).
  • the ring gear 50 here has, for example, four teeth which (in the circumferential direction) provide a form fit between opposing claws of the claw coupling.
  • the ring gear 50 is formed, for example, with an elastic material, such as an elastic plastic, in particular polyurethane.
  • the clutch 47 can thus provide a damped force and / or torque transmission between the drive motor and the brushing tool and / or at least partially absorb shocks occurring during operation, for example due to the movement of the workpiece (not shown here). In this way, a load that acts (retroactively) on the drive motor during operation can be reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Claims (10)

  1. Dispositif (1) de finition d'au moins une pièce (2) en forme de plaque qui est pourvue d'une bande de bord (4) sur au moins un petit côté (3), le dispositif (1) pouvant être disposé dans une machine (5) d'usinage par passes de la pièce (2) et, par référence au sens des passes (6), en aval d'un outil d'usinage par enlèvement de copeaux (7) de la machine (5), lequel enlève une projection de la bande de bord (4) qui est transversale à l'extension longitudinale de la bande de bord (4),
    caractérisé en ce que
    le dispositif (1) comprend au moins une unité de brossage (8) pourvue d'au moins un outil de brossage (9) et d'au moins un moyen d'application de fluide (27), l'outil de brossage (9) comportant au moins une bande de brossage (14), la bande de brossage (14) comportant une zone de contact rectiligne (30) et au moins une zone incurvée (31) et le moyen d'application de fluide (27) comportant au moins une buse (28) qui est prévue et conçue pour appliquer un fluide de traitement (29).
  2. Dispositif selon la revendication 1, caractérisé en ce que le dispositif (1) comporte deux unités de brossage (8), les outils de brossage (9) des unités de brossage (8) étant orientés différemment par rapport au sens des passes (6).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que la buse (28) du moyen d'application de fluide (27) est maintenue sur l'unité de brossage (8).
  4. Dispositif selon la revendication 1 ou 2, caractérisé en ce qu'au moins une ouverture de buse (32) de la buse (28) est orientée en direction de la zone incurvée (31) de la bande de brossage (14).
  5. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le dispositif (1) comprend au moins un moyen de réglage (10), l'unité de brossage (8) pouvant être déplacée vers et depuis la pièce (2) à l'aide du moyen de réglage (10).
  6. Dispositif selon la revendication 5, caractérisé en ce que l'unité de brossage (8) peut être déplacée vers la pièce (2) de telle manière que l'outil de brossage (9) vienne en contact au moins partiellement aussi bien avec un grand côté (16) de la pièce (2) qu'avec la bande de bord (4) appliquée sur le petit côté (3).
  7. Procédé de traitement par passes d'au moins une pièce (2) en forme de plaque, caractérisé en ce que le procédé est mis en œuvre avec un dispositif de finition (1) selon la revendication 1, l'au moins une unité de brossage (8) comprenant au moins un outil de brossage (9) et au moins un moyen d'application de fluide (27), l'outil de brossage (9) comportant au moins une bande de brossage (14), la bande de brossage (14) comportant une zone de contact rectiligne (30) et au moins une zone incurvée (31) et le dispositif d'application de fluide (27) comportant au moins une buse (28) qui est prévue et conçue pour appliquer un fluide de traitement (29), le procédé comprenant au moins les étapes suivantes :
    a) appliquer le fluide de traitement (29) à la bande de brossage (14) dans une région de courbure (31) de la bande de brossage (14),
    b) appliquer le fluide de traitement (29) sur au moins une zone partielle (18) d'un grand côté (16) de la pièce (2) au moyen de la bande de brossage (14), la bande de brossage (14) venant en contact avec la pièce (2) au niveau de la zone de contact rectiligne (30),
    la bande de brossage (14) suivant un trajet (35) entre un point d'application (33) du fluide de traitement (29) sur la bande de brossage (14) dans la région de courbure (31) et une extrémité de zone de contact (34) de la zone de contact rectiligne (30) par référence à la direction circonférentielle de la bande de brossage (14) et le fluide de traitement (29) restant fluide sur au moins la moitié du trajet (35).
  8. Procédé de traitement par passes d'au moins une pièce (2) en forme de plaque, à l'aide d'un dispositif selon la revendication 1, caractérisé en ce que le procédé comprend au moins les étapes suivantes :
    a) appliquer un moyen de séparation (17) sur au moins une zone partielle (18) d'un grand côté (16) de la pièce (2),
    b) fixer une bande de bord (4) sur au moins un petit côté (3) de la pièce (2),
    c) enlever le moyen de séparation (17) avec un dispositif de finition (1) qui comprend au moins une unité de brossage (8) pourvue d'au moins un outil de brossage (9) et d'au moins un moyen d'application de fluide (27), l'outil de brossage (9) comportant au moins une bande de brossage (14), la bande de brossage (14) comportant une zone de contact rectiligne (30) et au moins une zone incurvée (31) et le moyen d'application de fluide (27) comportant au moins une buse (28) qui est prévue et conçue pour appliquer un fluide de traitement (29).
  9. Procédé selon la revendication 8, la bande de bord (4) étant collée à l'étape b) sur l'au moins un petit côté (3), et le moyen de séparation appliqué (17) empêchant l'adhésif d'adhérer au grand côté (16) de la pièce (2) et le fluide de traitement (29) étant appliqué à l'étape c) sur la bande de brossage (14) dans la zone incurvée (31).
  10. Utilisation d'au moins un fluide de traitement (29) en liaison avec un dispositif selon la revendication 1 au moins pour enlever un moyen de séparation (17) d'au moins un grand côté (16) d'une pièce (2) en forme de plaque ou d'une bande de bord (4) fixée à au moins un petit côté (3) de la pièce (2) ou pour polir au moins une zone partielle d'une surface visible de la bande de bord (4), le fluide de traitement (29) étant appliqué dans une zone incurvée (31) d'une bande de brossage (14) du dispositif selon la revendication 1 avec une zone de contact rectiligne (30) et le fluide de traitement (29) étant formé de manière à rester fluide sur un trajet déterminé (35) le long de la circonférence de la bande de brossage (14) au moins sur la moitié du trajet.
EP16202620.7A 2015-12-07 2016-12-07 Dispositif de post-traitement d'au moins une pièce à usiner en forme de plaque Active EP3178605B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16202620T PL3178605T3 (pl) 2015-12-07 2016-12-07 Urządzenie do obróbki wykończeniowej co najmniej jednego obrabianego przedmiotu w kształcie płyty

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015121284.6A DE102015121284A1 (de) 2015-12-07 2015-12-07 Vorrichtung zur Nachbearbeitung mindestens eines plattenförmigen Werkstücks

Publications (2)

Publication Number Publication Date
EP3178605A1 EP3178605A1 (fr) 2017-06-14
EP3178605B1 true EP3178605B1 (fr) 2020-09-30

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EP16202620.7A Active EP3178605B1 (fr) 2015-12-07 2016-12-07 Dispositif de post-traitement d'au moins une pièce à usiner en forme de plaque

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Country Link
EP (1) EP3178605B1 (fr)
DE (1) DE102015121284A1 (fr)
PL (1) PL3178605T3 (fr)

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CN111451867B (zh) * 2020-04-13 2021-11-09 台升实业有限公司 一种用于木工板的压紧且双面同时打磨的装置
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Also Published As

Publication number Publication date
DE102015121284A1 (de) 2017-06-08
EP3178605A1 (fr) 2017-06-14
PL3178605T3 (pl) 2021-04-06

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