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EP3661695A1 - Dispositif d'aspiration à aspiration de poussière optimisée - Google Patents

Dispositif d'aspiration à aspiration de poussière optimisée

Info

Publication number
EP3661695A1
EP3661695A1 EP18750164.8A EP18750164A EP3661695A1 EP 3661695 A1 EP3661695 A1 EP 3661695A1 EP 18750164 A EP18750164 A EP 18750164A EP 3661695 A1 EP3661695 A1 EP 3661695A1
Authority
EP
European Patent Office
Prior art keywords
grinding
suction
manipulation
boundary layer
manipulation device
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.)
Withdrawn
Application number
EP18750164.8A
Other languages
German (de)
English (en)
Inventor
Torben Hellmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Homag GmbH
Original Assignee
Homag GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Homag GmbH filed Critical Homag GmbH
Publication of EP3661695A1 publication Critical patent/EP3661695A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/04—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces
    • 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
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/06—Dust extraction equipment on grinding or polishing machines
    • B24B55/08—Dust extraction equipment on grinding or polishing machines specially designed for belt grinding machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • B01D45/16—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0042—Devices for removing chips
    • B23Q11/0046—Devices for removing chips by sucking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0042—Devices for removing chips
    • B23Q11/006—Devices for removing chips by sucking and blowing simultaneously
    • 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
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/10—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving electrical means

Definitions

  • the present invention relates to a suction device for a grinding device, preferably
  • the present invention relates to a method for the extraction of resulting from a processing on a grinding device particles and a suction device according to the invention
  • the (dust) suction device and the method of the present invention are used in particular in the field of wide-belt sanding machines, preferably in the processing of plate-shaped workpieces.
  • Wide-belt sanding device is suitable. This is a compressed air supply with in or against the
  • DE 25 02 806 AI a dedusting device for grinding apparatus described in which in addition to the upward run of the grinding element is a vertically oriented fed from above HeilZu arrangement which immediately adjacent to a suction connected to a suction device, the grinding dust laxative suction line sharp air jet directs against the lower end of the upwardly moving abrasive passage and provides a shield cooperating with the abrasive element which substantially restricts air access to the suction port area to the air supply.
  • suction devices Although known suction devices have been proven in practice, the requirements for such devices are increasing. In particular, maintenance costs, the use of materials and the quality of processing are becoming increasingly important, so that in particular there is a need for energy-efficient suction devices which are increased in their suction power.
  • the aim of the present invention is to provide a suction device for a grinding device, a method for sucking off particles accumulating during processing on a grinding device, and a suction device according to the invention
  • One of the ideas of the present invention is to provide a suction device or a method capable of breaking or preferably eliminating the boundary layer of a grinding element resulting from the running motion, in particular the orbital motion, of the grinding element. As a result, particles that are trapped in the boundary layer to be solved and made Absaugbar.
  • the proposed suction device or the proposed method it is possible to break up or even completely eliminate the boundary layer of a grinding element during the operation of the grinding element, which in turn makes it possible to dissolve particles which are trapped in the boundary layer, so to speak. That is, allowing the particles to break out of the boundary layer. In this way, the efficiency of the suction device can be improved without the suction power of
  • the suction device for a grinding element comprising a grinding device, in particular for a belt or wide-belt grinding device, for sucking in a machining of a workpiece, which preferably at least partially made of wood, wood materials, wood substitutes, plastic, metal or the like , accumulating particles, on: at least one exhaust duct through which exhaust air can flow, and a first manipulation device which is arranged in the region of the exhaust duct and which may be designed, for example, in the form of a flow body.
  • the first manipulation device is adapted to act on a boundary layer of a grinding element of a grinding device, in particular to intervene in the boundary layer. In this case, the intervention in the boundary layer can take place directly or indirectly.
  • a boundary layer refers, for example, to a laminar and / or turbulent air layer which forms on a grinding element when the grinding element is in running motion.
  • This boundary layer is formed in particular by the fact that the grinding element, in particular endless grinding belt, is operated at a high cutting speed (grinding belt rotational speed), which is generally between 0.5 ms -1 to 30 ms -1 , but this can also be significant in high-performance applications higher.
  • an air layer is formed around the rotating abrasive element. This layer of air can be both laminar and turbulent.
  • This effect is called a boundary layer phenomenon or "boundary layer effect.”
  • This layer of air prevents particles from "breaking out” from the surface of the abrasive element, making it difficult to clean the sanding element.
  • the particles may include, among others, grinding chips and abrasion of the grinding element.
  • a manipulation device in particular a
  • Boundary layer manipulation device (hereinafter, for the sake of simplicity, only one
  • Manipulation device act directly or indirectly on the boundary layer.
  • the manipulation device can be designed, for example, for directly influencing the boundary layer in the form of a flow body, which engages in the boundary layer.
  • direct or indirect action on the boundary layer is understood to mean that the formation or shape of the boundary layer is influenced by means (the manipulation device) in order to weaken, break it up or possibly eliminate it.
  • the first manipulation device is movable, in particular pivotable, arranged in the region of the suction channel, wherein the first manipulation device preferably is movable such that an end of the first manipulation device, which faces the boundary layer, approaches the boundary layer or moves away from the boundary layer.
  • the first manipulation device is arranged in a flow region of the air drawn in by the suction device, in particular an aspirated particle stream, the particle stream comprising particles dissolved in particular from the boundary layer.
  • the material of the workpiece to be machined e.g. from softwood to hardwood, the abrasive element type, the abrasive grain size, the peripheral speed of the abrasive element, the contact pressure of the abrasive element on the workpiece to be machined and the same has been changed.
  • the material of the workpiece to be machined e.g. from softwood to hardwood, the abrasive element type, the abrasive grain size, the peripheral speed of the abrasive element, the contact pressure of the abrasive element on the workpiece to be machined and the same has been changed.
  • the material of the workpiece to be machined e.g. from softwood to hardwood, the abrasive element type, the abrasive grain size, the peripheral speed of the abrasive element, the contact pressure of the abrasive element on the workpiece to be machined and the same has been changed.
  • Manipulation device on the boundary layer advantageous, in particular with regard to a sufficient weakening of the boundary layer and the associated increase in efficiency of the suction device.
  • the suction device additionally has a second manipulation device, which is arranged to be movable, in particular pivotable, in the suction channel, wherein the second manipulation device is preferably movable such that one end of the second manipulation device facing the boundary layer, the Boundary layer approaches or moves away from it.
  • a second manipulation device offers the advantage that, if appropriate based on the first manipulation device, complete disruption or elimination of the boundary layer should not be possible, this can be done by the second manipulation device.
  • At least one sealing device is provided which is arranged in the suction channel in such a way that it can close off at least part of a cross section of the suction channel, so that no suction air can flow through this part of the cross section.
  • the sealing device By means of the sealing device, it is possible to close a cross section, in particular Ansaugquerites, the suction channel of the suction device, so to reduce the size of the cross section of the suction channel. It is particularly advantageous to close off areas of the cross section of the suction channel, which are not necessary to dissipate the sucked through the suction air (particle flow). In this way it is possible to reduce the necessary power of a suction fan and thus save energy costs.
  • a blown air device may be provided, wherein the blown air device a plurality of nozzles, preferably in the first and / or the second manipulation device, in particular in a
  • Flow body of the respective manipulation device is provided, and flow channels, which supply the nozzles with a fluid, in particular compressed air, has. in this connection it is also possible to provide only holes in the first and / or second manipulation device, in particular in the flow body of the respective manipulation device, from each of which a fluid (eg blowing air) is discharged at high speed.
  • a fluid eg blowing air
  • blowing device By means of the blowing device, it is possible to improve the action on the boundary layer and thus the breaking up or the elimination of the boundary layer. Conversely, this offers the possibility of being able to increase a distance between the manipulation devices, in particular one end of the manipulation device, which faces the abrasive element, and the grinding bath, and nevertheless to be able to exert a sufficient effect on the boundary layer. In this way, a risk that the grinding element, in particular an already used and thus worn abrasive element, with the
  • Manipulation devices comes into contact, be reduced.
  • the fluid is selected from the group: air, air mixed with solid particles and / or liquid particles and / or vapor, air mixed with dry ice, C0 2 snow and de-ionized air ,
  • the solid particles are preferably solid particles, in particular wood or metal chips or waste, and in the case of the liquid particles, preferably water particles.
  • the kinetic energy (momentum) of the fluid can be increased and thus the effect of the blowing device, in particular the impact of the blown fluid on the boundary layer, increased.
  • first manipulation device and / or the second Manipulation device in particular a flow body of the manipulation device, has / have an aerodynamic shape, and / or the surface of the first manipulation device and / or the second
  • Manipulation device is designed as a shark skin or a surface with dimples (golf ball).
  • Manipulation devices are aligned with respect to the boundary layer that two exhaust air streams, in particular Absaugpêtströme can be generated.
  • the suction device has one or more sensors to a position, in particular an angular position, the first manipulation device and / or the second manipulation device and / or the
  • the respective components can each have a separate actuator, which is able to execute the pivoting movement of the manipulation devices and / or sealing device preferably stepwise.
  • the actuators as a stepper motor, linear actuator,
  • the suction device is designed to be arranged in a deflection region of a tensioning roller and / or a deflection roller of the grinding element, wherein in particular the first manipulation device and / or the second
  • Tensioning roller can be brought into contact.
  • the present invention relates to a grinding apparatus for grinding workpieces, which are preferably at least partially made of wood, wood materials, wood substitutes, plastic, metal or the like, comprising: at least one abrasive element, wherein the abrasive element has a boundary layer during a grinding process, and the above described suction device.
  • the proposed grinding device it is possible to break up or even completely eliminate the boundary layer of a grinding element during operation of the grinding device, in particular during a grinding process, which in turn makes it possible to dissolve particles which are trapped in the boundary layer, as it were. That is, allowing the particles to break out of the boundary layer. In this way, the efficiency of the suction device can be improved without the suction power of
  • the machining result (grinding result) can be improved because the grinding element can be cleaned better.
  • a well-cleaned abrasive element allows the grinder to achieve a smoother and better finish.
  • this can increase the service life of the grinding element, which contributes positively to lower manufacturing costs and maintenance costs.
  • this can improve the interior dusting of the grinder, which is beneficial in reducing wear of components of the grinding device and minimizes the cleaning effort.
  • the grinding device further comprises a grinding unit with a tensioning roller and / or a deflection roller, wherein the suction device is provided in the vicinity, in particular in a deflection region, the tensioning roller or the deflection roller of the grinding element, and wherein in particular the first Manipulation device and / or the second manipulation device so movable, in particular pivotable, is that it is at least approximately brought into contact with the tension roller.
  • the suction device and / or the grinding aggregate are movable by a distance between the suction device and the grinding aggregate, in particular between the first manipulation device and / or the second
  • Manipulation device and the tensioner to zoom or enlarge.
  • the grinding device has a control device which is adapted to at least one positioning and / or alignment and / or angle adjustment of the first
  • Manipulation device or the sealing device to make automatically More specifically, in the control are optimal setting values (position, orientation and / or angular position) for different machining scenarios (grinding element type, grinding element grain,
  • the controller determines the optimal settings for the manipulation devices and / or the
  • the present invention relates to a method for the extraction of accumulating at a grinding device particles, in particular during a machining of a workpiece, preferably at least partially made of wood, wood materials, wood substitute materials, plastic, metal or the like, preferably using the above-described suction device, comprising the steps:
  • Manipulation device on a boundary layer of the grinding element acts, in particular engages in the boundary layer.
  • Fig. 1 shows schematically the formation of a
  • Fig. 2 shows an embodiment of a
  • Fig. 3 shows an embodiment of a
  • Fig. 4 shows the embodiment of the grinding apparatus of Fig. 2, in which the grinding unit is in change position.
  • FIG. 1 schematically shows the formation of a boundary layer G in the case of a revolving grinding belt 301 (grinding element). shown.
  • the sanding belt 301 is vertically received via an upper deflection roller 302 and a lower deflection roller 303, and is driven in a clockwise direction.
  • a boundary layer G builds up due to friction between a sanding belt surface of the sanding belt 301 and the air adjacent to the sanding belt surface. That is, the friction entrains air adjacent to the abrasive belt 301.
  • FIG. 2 also shows that the thickness of the boundary layer in each case increases from one deflection roller 302, 303 to the other deflection roller 302, 303. As also indicated in FIG. 1, however, the thickness decreases again along the circumference of the two deflection rollers 302, 303 (as shown on the upper deflection roller 302).
  • the thickness of the boundary layer is significantly dependent on the rotational speed of the grinding belt 301, the higher the rotational speed, the more powerful or thicker is the boundary layer G, which is located on the grinding belt 301, in particular between a
  • the thickness of the barrier layer is further dependent on the nature of the abrasive belt 301, such as e.g. the roughness of the abrasive belt 301.
  • the belt grinding apparatus 100 (grinding apparatus) has a suction device 1 and an abrasive aggregate 110.
  • the grinding unit 110 has a deflection roller, which in the present embodiment is embodied by way of example as a tensioning roller 112 and serves for tensioning an abrasive belt 111.
  • the grinding belt 111 has a grinding portion 113 adapted to come into contact with a workpiece W to perform grinding work on the workpiece W.
  • grinding units are arranged vertically above a conveying device 200, which is provided for conveying the workpieces W to be processed, and the grinding units are preferably designed such that they are vertically movable, ie can be delivered to the workpiece W to be machined.
  • the suction device 1 shown has a suction hood, in which the suction channel 2 is formed. 2 can also be seen, the suction hood is designed so that it completely surrounds the tension roller 112 upwards, so that a suction air flow can be formed, which can completely cover the tension roller 112.
  • the suction device 1 may have a vacuum device (not shown) or be connected to an external vacuum device, which is for example part of a central suction system for accumulating particles (chips).
  • the suction device 1 has a first manipulation device 3 and a second manipulation device 4, both of which are arranged in the suction channel 2 provided in the suction hood.
  • the two manipulation devices 3, 4, in particular flow body of the manipulation devices 3, 4 have in cross-section a flow-optimized shape, in particular a wing shape, and are aligned in their longitudinal extent parallel to each other and parallel to the longitudinal extent of the tension roller 112 of the grinding unit 110. In this way, by pivoting the two manipulation devices 3, 4 in each case a distance A between one of the tension roller 112 facing the end of the manipulation devices 3, 4 and the tension roller 112 can be changed. This also allows a relative angular position between the two manipulation devices 3, 4 and the tension roller 112 or the rotating on the tension roller 112 grinding belt 111 are changed.
  • FIG. 2 also shows the boundary layer G already described in connection with FIG. 1, which is produced by the running movement of the grinding belt 111 during the operation of the grinding assembly 110. As the Fig. 2 can be further removed, the two
  • Manipulation devices 3, 4 aligned, in particular with respect to the rotating on the tension roller 112 grinding belt 111 that they act on the boundary view G.
  • both manipulation devices 3, 4 are arranged in the suction channel 2 and oriented with respect to the grinding belt 112 in such a way that a line of symmetry S of the two manipulation devices 3, 4 is aligned essentially tangentially to the revolving grinding belt 111.
  • the symmetry lines S passes through the pivot point of the manipulation devices 3, 4 and lies in a plane which is perpendicular to the longitudinal extension of the tensioning roller 112.
  • the idler roller 112 is an upper idler pulley of the grinding unit 110, and in the lower portion of the grinding unit 110, for example, two diverting pulleys (longitudinal unit with a calibrating roller), the grinding belt 111 clamps a trapezoid in cross section extending downwardly extended.
  • the abrasive belt would also span a downwardly widening trapezoid, if it were a contactor roll grinding unit 110, since in this case, as shown in Fig. 1, the contact roll (lower roll) has a larger diameter than the tension roll.
  • the grinding belt 111 rotates clockwise, so it is a grinding of the workpiece W, which is transported by the conveyor 200 in Fig. 2 from right to left, in synchronism. Accordingly, the sanding belt 111 moves upward on the left side of the tension roller 112 and downward on the right side of the tension roller 112. In this way, particles, in particular the grinding process resulting chips, conveyed by the grinding area 113 upwards in the direction of the tension roller 112, in particular by the boundary layer G entrained. Due to the inertia of the particles they are separated by the deflection of the grinding belt 111 on the tension roller 112 in the upward direction, ie, in the direction of the suction channel 2 from the grinding belt. Thus, it is possible to use the kinetic energy of the particles to improve the suction efficiency of the suction device 1.
  • Manipulation device 3 arranged and aligned so that it acts on the boundary layer G.
  • the flow behavior of the boundary layer G is influenced, in particular influenced so that the boundary layer G is broken or completely eliminated.
  • the first manipulation device 3 can be arranged and aligned so that the grinding belt 111 facing the end of the first manipulation device 3 has a sufficiently small distance from the grinding belt surface, so that it at least partially immersed in the boundary layer G.
  • dipping the first manipulation device 3 in the boundary layer G is this, as indicated in Fig. 2, broken up and divided into two suction air streams 2a, 2b.
  • the first exhaust air flow 2a flows in FIG. 2 on the left past the first manipulation device 3 upwards and the second exhaust air flow 2b flows in FIG. 2 on the right past the first manipulation device 3 upwards.
  • the broken boundary layer G mixes with the sucked by the suction device 1 ambient air of the grinding unit 110, whereby the bound in the boundary layer G particles can be dissolved and sucked.
  • the kinetic energy of the particles bound in the boundary layer G is utilized to release them from the boundary layer G. That is, the particles bound in the boundary layer G are incident on the first manipulation device 3 with their kinetic energy acting at an upstream part on the first manipulation device 3, so that they can be deflected. In this case, in particular the particles which are deflected to the left into the first suction air flow 2a are released from the boundary layer G, whereby the efficiency of the suction device 1 can be improved.
  • the illustrated embodiment of the present invention has a second manipulation device 4 which is arranged in the circumferential direction behind the first manipulation device 3. In this way, the second manipulation device 4 can completely break up and eliminate an optionally remaining boundary layer G. Furthermore, the second manipulation device 4 serves to guide the second exhaust air flow 2b upwards in the direction of suction.
  • a sealing device 5 which serves to seal the lying in the direction of rotation behind the second manipulation device 4 suction channel 2 to increase the suction power of the suction device 1 in the area in which it is needed, namely in the region of the suction channel 2, in which the two exhaust air flows 2a, 2b flow.
  • the illustrated embodiment of the present invention is advantageously equipped with a blown air device (not shown in detail in the figures).
  • the blown air device has a multiplicity of nozzles, which are respectively provided on the two manipulation devices 3, 4, in particular on the respective end of the manipulation device 3, 4, which faces the abrasive belt 111.
  • the nozzles are in the tip of the manipulation device 3, 4, in particular of the flow body of
  • Manipulation means 3, 4 are provided, that a blowing direction of the nozzles parallel to the line of symmetry S of the manipulation means 3, 4 extends.
  • blowing air fluid
  • the blowing device offers the advantage that the Manipulation devices 3, 4 may be further spaced from the grinding belt 111, and still a sufficient effect on the boundary layer G can be achieved. This is particularly advantageous if the grinding belt 111 already has an advanced state of wear and possibly no longer rotates so quietly. In other words, due to the greater distance between the manipulation devices 3, 4 and the grinding belt 111, it is less likely that the grinding belt 3, 4 comes into contact with the manipulation devices 3, 4.
  • Fig. 3 is an embodiment of the suction device 1 of the present invention as shown in Fig. 2, which corresponds to the embodiment shown in Fig. 2, only with the difference that the grinding is performed in the opposite direction. Accordingly, the abrasive belt 111 is driven counterclockwise. Due to the counterclockwise operation it is necessary to use the
  • the upper deflection roller is a tensioning roller 112.
  • the suction device 1, in particular the suction hood is designed to be movable upwards.
  • Fig. 4 a state of the belt grinding apparatus 1 is shown, in which the tension roller 112 has been lowered and / or the suction device 1 has been raised. Accordingly, the distance between the Manipulation devices 3, 4 and the tension roller 112 increases so far that a free pivoting of the
  • Manipulation devices 3, 4 from the left of the tension roller 112 to the right of the tension roller 112 and vice versa is possible. That is, in order to convert the illustrated embodiment of the present invention from reverse grinding to constant velocity grinding, it is necessary to be able to increase the distance between the two manipulating devices 3, 4 and the tension roller 112.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

La présente invention concerne un dispositif d'aspiration (1) pour un dispositif de meulage (100) ainsi qu'un procédé d'aspiration de particules s'accumulant sur un dispositif de meulage (100). Le dispositif d'aspiration (1) comporte au moins un canal d'aspiration (2), pouvant être traversé par l'air aspiré et un premier dispositif de manipulation (3), disposé dans le canal d'aspiration (2), le premier dispositif de manipulation (3) étant disposé directement ou indirectement sur une couche limite (G), en particulier sur une couche limite (G) d'un élément de meulage (111) périphérique d'un dispositif de meulage (100) pour pouvoir agir, en particulier pour pouvoir s'engager dans la couche limite (G).
EP18750164.8A 2017-08-04 2018-08-02 Dispositif d'aspiration à aspiration de poussière optimisée Withdrawn EP3661695A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017117715.9A DE102017117715A1 (de) 2017-08-04 2017-08-04 Absaugungsvorrichtung mit optimierter Staubabsaugung
PCT/EP2018/070993 WO2019025542A1 (fr) 2017-08-04 2018-08-02 Dispositif d'aspiration à aspiration de poussière optimisée

Publications (1)

Publication Number Publication Date
EP3661695A1 true EP3661695A1 (fr) 2020-06-10

Family

ID=63108561

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18750164.8A Withdrawn EP3661695A1 (fr) 2017-08-04 2018-08-02 Dispositif d'aspiration à aspiration de poussière optimisée

Country Status (5)

Country Link
US (1) US20210086326A1 (fr)
EP (1) EP3661695A1 (fr)
CN (1) CN110997229A (fr)
DE (1) DE102017117715A1 (fr)
WO (1) WO2019025542A1 (fr)

Families Citing this family (3)

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Publication number Priority date Publication date Assignee Title
US20250050466A1 (en) * 2021-06-25 2025-02-13 Kündig Ag Cleaning the sanding belt by blowing it off with an air knife
EP4140643A1 (fr) 2021-08-31 2023-03-01 Karl Heesemann Maschinenfabrik GmbH & Co. KG Dispositif de dépoussiérage, machine à poncer et procédé de dépoussiérage d'une pièce
CN114378631A (zh) * 2022-02-17 2022-04-22 胡木子 一种智能数控用铁屑清理机构

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WO2019025542A1 (fr) 2019-02-07
US20210086326A1 (en) 2021-03-25
DE102017117715A1 (de) 2019-02-07

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