EP1177861B1 - Schleifband für eine Bandschleifmaschine - Google Patents

Schleifband für eine Bandschleifmaschine Download PDF

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Publication number
EP1177861B1
EP1177861B1 EP01103306A EP01103306A EP1177861B1 EP 1177861 B1 EP1177861 B1 EP 1177861B1 EP 01103306 A EP01103306 A EP 01103306A EP 01103306 A EP01103306 A EP 01103306A EP 1177861 B1 EP1177861 B1 EP 1177861B1
Authority
EP
European Patent Office
Prior art keywords
grinding
layer
belt
support
intermediate layer
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.)
Expired - Lifetime
Application number
EP01103306A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1177861A3 (de
EP1177861A2 (de
Inventor
Peter Jöst
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US09/838,770 priority Critical patent/US6575821B2/en
Publication of EP1177861A2 publication Critical patent/EP1177861A2/de
Publication of EP1177861A3 publication Critical patent/EP1177861A3/de
Application granted granted Critical
Publication of EP1177861B1 publication Critical patent/EP1177861B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • 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

Definitions

  • the invention relates to an abrasive belt for a belt sander according to the preamble of claim 1.
  • Such an abrasive belt is known from EP 0 716 903 A.
  • an endless belt is at least two roles, of which at least one is driven.
  • the grinding layer outside i.e. on the side facing away from the rollers, while the carrier rests on the rollers. If now the rollers are rotated, the carrier is moved and with it the abrasive layer on the outside of the tape.
  • a pressure shoe is arranged on one run of the grinding belt, with the help of the moving sanding belt be pressed against a surface to be ground can to create a certain grinding pressure.
  • Such grinding belts are preferably used for grinding used by flat surfaces.
  • belt sanders can be trained as both portable hand tools be as well as stationary tools.
  • the grinding dust has therefore already been proposed vacuum from the sanding belt. This is in the belt sander in the area of a pulley suction device acting on the outside of the grinding belt provided that the grinding dust from the surface vacuum the grinding layer again. The The effectiveness of such a suction is limited.
  • the invention is based, which Improve sanding dust removal from sanding belts.
  • the sanding dust can be removed at the point of origin, i.e. he does not stay or only for a very short period of time on the surface of the grinding layer.
  • the particle stream through the sanding belt i.e. the one in an air stream guided grinding dust, first penetrates the Abrasive layer.
  • an intermediate layer is arranged on the grinding layer, which can also flow through particles. In this intermediate layer the sanding dust has the opportunity to Way to choose which is no longer perpendicular to the Grinding plane is directed.
  • the sanding dust can rather, if necessary, also parallel to Move the grinding layer. This enables him to work on one suitable place to penetrate the wearer who also is designed to flow through particles.
  • the carrier is formed from a particle flow-impermeable material and has a multiplicity of holes which are distributed substantially uniformly over its surface.
  • a particle stream impermeable material can be used for the carrier does not limit the choice of materials for the carrier.
  • the same backing materials can be used as with conventional sanding belts. The material can be selected in particular with regard to the strength that the carrier must have. The backing material should in particular be tear-resistant. Overall, however, it is sufficient if the combination of abrasive layer, intermediate layer and carrier is sufficiently tensile. If appropriate, the carrier can also be formed by part of the intermediate layer. The particle flow through the carrier is ensured in that the carrier has a plurality of holes which are evenly distributed over its surface.
  • holes may have been created by perforation, for example.
  • the fact that the holes are evenly distributed over the surface does not mean that a regular pattern is essential. It is only necessary that the ratio of the opening area to the remaining carrier area is essentially constant over the entire area of the carrier, if one considers area sections of a few square centimeters in size, for example 10 cm 2 or less.
  • the holes are preferably at a maximum distance to each other depending on the intermediate layer is selected so that an almost dust-free particle flow from the grinding layer through the intermediate layer can be generated through the holes. Accordingly the holes can be all the more apart the lighter the dust particles in parallel can flow to the carrier through the intermediate layer.
  • the intermediate layer is preferably open-pored Foam trained.
  • a foam can, for example realized by a layer of foam his.
  • the foam layer allows the dust particles basically a movement in all directions.
  • the Dust can therefore be in the foam layer from the Flow the grinding layer to the individual holes in the carrier.
  • the carrier is preferably made of paper, fabric or Film formed. These materials have proven their worth. They can transmit high tensile forces and are relative inexpensive. A plastic film is preferably used as the film used. But you can also use a fleece or a use a different, less tensile material if that Sanding belt is otherwise overall tensile or on other way can work.
  • the abrasive layer preferably has one Abrasive backing impermeable from a particle stream Material on a flat arrangement of a Has a large number of perforation openings. Applies here basically a view similar to that for the Carrier.
  • the perforation openings are arranged so that the dust created during grinding is no larger Cover stretches on the surface of the abrasive layer must, but relatively quickly into the next perforation can be sucked in.
  • the perforation openings don't have to be in a predetermined pattern be arranged, although this facilitates manufacturing.
  • the use of an impermeable particle stream Materials has the advantage that you can also use it for use the abrasive backing on materials can, which have proven themselves in practice.
  • the particle flow permeability is through the perforation openings reached.
  • the perforation openings preferably have one Diameters in the range of 0.5 to 5 mm and neighboring Perforation openings a maximum distance from each other from 20 mm, with the maximum distance of the edge to the next perforation opening is 15 mm.
  • the distances between neighboring ones Perforation openings and the distance of the edge on each Even add to the next perforation even smaller values, for example in the order of magnitude of 10 mm. This means that relatively short distances are ready put the sanding dust on the surface of the sanding belt must go back before it is in the next perforation opening can be sucked in.
  • the abrasive backing is preferably made of paper, Tissue or film formed.
  • a film in particular a plastic film can be used.
  • On this Materials can be abrasives, for example fasten the abrasive grain.
  • the grinding layer is designed as a grinding grid.
  • abrasive grille can be particularly create fine cuts.
  • the particle stream can pass through the openings that are formed by the individual meshes of the grid.
  • FIG. 1 schematically shows a belt grinding machine 1, in which an abrasive belt 10 around two deflection rollers 2, 3 is placed and tensioned, of which the pulley 3 has a drive 4.
  • the sanding belt 10 is through the deflection roller 3rd driven in the direction of an arrow 5.
  • a pressure shoe 6 is on the inside of the grinding belt 10, more precisely its free run arranged. With help of the pressure shoe 6, the lower run of the Abrasive belt 10 are pressed against a surface, to grind them.
  • a suction device 7 is provided, which by a schematically illustrated fan 8th should be symbolized.
  • Fig. 2 shows a first embodiment of the grinding belt 10 in cross section.
  • the grinding belt 10 has one Abrasive layer 11, which is formed by a Abrasive carrier 12, for example made of paper, tissue or a plastic film on which an abrasive grain 13 or another abrasive is attached, for example by gluing or embedding in a plastic matrix.
  • a Abrasive carrier 12 for example made of paper, tissue or a plastic film on which an abrasive grain 13 or another abrasive is attached, for example by gluing or embedding in a plastic matrix.
  • the abrasive backing 12 is made of a material which is inherently impermeable to particle flow, i.e. the material itself is so dense that there are no dust particles can step through.
  • the Abrasive backing 12 with a plurality of perforation openings 14 provided that are large enough to the Allow passage of dust.
  • the arrangement of this Perforation openings can be seen from FIG. 4.
  • the perforation openings 14 have a diameter in Range from 0.5 to 5 mm. As a rule, this lies Diameter at about 1 mm.
  • the perforation openings 14 can basically be any Form as long as it is ensured that Dust created during grinding through the perforation openings 14 can pass through.
  • the perforation openings 14 penetrate the grinding layer complete, i.e. also the abrasive grain.
  • the maximal Distance between two adjacent perforation openings 14 is 20 mm.
  • Even the maximum Distance of the edge 15 (parallel to the direction of movement 5) to the next perforation opening 14 is included 20 mm. It is therefore guaranteed that the grinding Grinding dust generated cover this distance at most must, before entering the nearest perforation 14 can be sucked in.
  • An intermediate layer 16 is arranged on the abrasive carrier 12, which is made of foam.
  • the foam 16 is open-pore, i.e. he is also particle stream-permeable.
  • the particle flow is here but not in a direction perpendicular to the extension limited of the abrasive backing 12, but the particle flow can be in the intermediate layer 16 basically move in any direction.
  • the main direction of the particle stream is indeed from the Abrasive layer 11 run to a carrier 17 on the pulleys 2, 3 rests. As part of this movement but flow paths will definitely develop, the one component parallel to the extension of the Have abrasive backing 12.
  • the carrier 17 is here tensile, i.e. it is not worth mentioning stretched when driven by rollers 2, 3 becomes. Basically, it is sufficient if this Tensile strength in the sanding belt 10 given overall is.
  • the carrier 17 is also formed from a material which is inherently impermeable to particle flow.
  • the grinding layer 11 is similar Carrier 17 perforated. This is for example from Fig. 5, which is a top view of the carrier 17 Holes 18 shows.
  • FIGS. 4 and 5 make clearly that the arrangement of the perforation openings 14 and the holes 18 need not match, i.e. it there must not be a hole 18 opposite each perforation opening 14, although this is of course possible.
  • the Particle flow through the perforation openings 14 rather, it seeks its way through the Intermediate layer 16 until it passes through the holes 18 of the carrier 17 can kick.
  • the holes 18 of the carrier 17th have a diameter in the range of 0.5 to 3 mm, preferably 1 mm, and a maximum distance from each other of 20 mm, preferably 7 to 10 mm.
  • the distance too the holes 18 to the edge 19 is a maximum of 20 mm. This distance can generally be chosen larger than the distance of the perforation openings 14 to Edge 15 of the grinding layer 11.
  • Fig. 3 shows a modified embodiment of a Abrasive belt 10 ', in which the abrasive layer 11' is different is trained.
  • the grinding layer 11 ' is now formed by a grinding grid 20, i.e. on net-like or lattice-like fabrics, on the webs the abrasive grain 13 is attached.
  • the particle stream can pass through the mesh of the grinding grid 20 and through the intermediate layer 16 to the holes 18 arrive in the carrier 17.
  • the sanding belt 10 in operation to one grinding surface put on and set in motion is mainly created in the area of the pressure shoe 6 Abrasion in the form of grinding dust.
  • the suction device 7 generates an air flow through through the sanding belt 10, which ensures that the with the grinding belt 10 in the direction of the suction device 7 transported sanding dust directly can be sucked through the grinding belt 10, 10 ' can.
  • the intermediate layer 16 serves as a distributor, i.e. it ensures that the through the perforations 14 or the grating 20 passing through Grinding dust to such holes 18 in the carrier 17th can get that are under negative pressure.
  • the grinding dust becomes permanent and reliable removed so that the abrasive layer 11, 11 'does not closes and the sanding belt 10, 10 'thus a longer Has service life.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
EP01103306A 2000-08-01 2001-02-13 Schleifband für eine Bandschleifmaschine Expired - Lifetime EP1177861B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US09/838,770 US6575821B2 (en) 2000-08-01 2001-04-19 Abrasive belt for a belt grinding machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20013377U 2000-08-01
DE20013377U DE20013377U1 (de) 2000-08-01 2000-08-01 Schleifband für eine Bandschleifmaschine

Publications (3)

Publication Number Publication Date
EP1177861A2 EP1177861A2 (de) 2002-02-06
EP1177861A3 EP1177861A3 (de) 2002-10-23
EP1177861B1 true EP1177861B1 (de) 2004-08-18

Family

ID=7944742

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01103306A Expired - Lifetime EP1177861B1 (de) 2000-08-01 2001-02-13 Schleifband für eine Bandschleifmaschine

Country Status (5)

Country Link
EP (1) EP1177861B1 (es)
AT (1) ATE273770T1 (es)
DE (2) DE20013377U1 (es)
ES (1) ES2222278T3 (es)
PT (1) PT1177861E (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004007747B3 (de) * 2004-02-18 2004-12-23 Jöst, Peter Schleifbandträger und Schleifbandanordnung
EP2460624A1 (de) * 2010-12-06 2012-06-06 Jöst GmbH Schleifvorrichtung zum maschinellen Schleifen von Rotorblättern für Windkraftanlagen
CN106425771B (zh) * 2016-12-02 2018-08-24 肖传金 一种半自动异型砂带内砂机
DE102017126627A1 (de) * 2017-11-13 2019-05-16 Cordier Spezialpapier Gmbh Schleifmittel
WO2019111212A1 (en) * 2017-12-08 2019-06-13 3M Innovative Properties Company Porous abrasive article

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2804733A (en) * 1953-05-21 1957-09-03 Rexall Drug Company Abrasive article
JPH0722899B2 (ja) * 1987-01-08 1995-03-15 株式会社クラレ 精密研磨用研磨材
JPH06150306A (ja) * 1992-10-30 1994-05-31 Sony Corp 磁気記録媒体表面処理装置
DE9419573U1 (de) * 1994-12-07 1995-02-02 Joest Peter Schleifmittel auf Unterlage
US5910471A (en) * 1997-03-07 1999-06-08 Minnesota Mining And Manufacturing Company Abrasive article for providing a clear surface finish on glass
US6736714B2 (en) * 1997-07-30 2004-05-18 Praxair S.T. Technology, Inc. Polishing silicon wafers

Also Published As

Publication number Publication date
EP1177861A3 (de) 2002-10-23
EP1177861A2 (de) 2002-02-06
ATE273770T1 (de) 2004-09-15
PT1177861E (pt) 2004-11-30
ES2222278T3 (es) 2005-02-01
DE20013377U1 (de) 2000-10-05
DE50103294D1 (de) 2004-09-23

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