WO2009007231A1 - Dispositif de meulage - Google Patents

Dispositif de meulage Download PDF

Info

Publication number
WO2009007231A1
WO2009007231A1 PCT/EP2008/058000 EP2008058000W WO2009007231A1 WO 2009007231 A1 WO2009007231 A1 WO 2009007231A1 EP 2008058000 W EP2008058000 W EP 2008058000W WO 2009007231 A1 WO2009007231 A1 WO 2009007231A1
Authority
WO
WIPO (PCT)
Prior art keywords
endless
grinding
abrasive
belt
webs
Prior art date
Application number
PCT/EP2008/058000
Other languages
German (de)
English (en)
Inventor
Hans-Peter Zahnd
Original Assignee
Hans-Peter Zahnd
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 Hans-Peter Zahnd filed Critical Hans-Peter Zahnd
Publication of WO2009007231A1 publication Critical patent/WO2009007231A1/fr

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
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/36—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades
    • B24B3/54—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades of hand or table knives
    • 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
    • B24B21/002—Machines or devices using grinding or polishing belts; Accessories therefor for grinding edges or bevels

Definitions

  • the invention relates to a grinding device according to the preamble of claim 1.
  • the document US 3,775,913 discloses a grinder for grinding or resharpening knives.
  • This grinder comprises two rotating, driven sanding belts, which are arranged side by side and viewed from the front side have a mutually V-shaped course, so that a blade can be ground simultaneously on both sides.
  • This sander has the disadvantages that it is difficult to sharpen a longer blade evenly, that there is a risk that steps are ground into a blade, and that the blade can not be ground close to the handle.
  • the dependent claims 2 to 13 relate to further, advantageously configured grinding equipment.
  • the object is achieved in particular with a grinding device, in particular for grinding and / or sharpening knives, _
  • each endless abrasive belt being guided and held by a first and a second drive and bearing device such that the abrasive surfaces of the two endless abrasive belts form a gap for grinding a blade and second drive and bearing device comprises two pulleys, respectively, to which the first and second endless abrasive belt abuts, and wherein the first and second endless abrasive belt at its abrasive surface in the drive direction extending grooves and webs, and wherein at least one web has the abrasive surface, and wherein the two endless abrasive belts are arranged to extend mutually in such a way that the grooves and webs of the two endless abrasive belts lie mutually in the drive direction along a partial section.
  • the inventive grinding device has the advantage that knives can be provided with an unusually good finish.
  • the intermeshing of the webs and grooves of the two endless abrasive belts has the advantage that the
  • Endlosschleifb perpendicular to their course form a relatively deep and defined designed grinding surface or a defined gap, so that the knife can be sharpened accurately and reproducibly.
  • the endless abrasive belts have the advantage that they, in particular in the region of the gap, with a blade held in the gap can escape a little, in contrast to grinding wheels whose surface has a well-defined position.
  • the endless grinding baths are deviated due to the influence of the _
  • the endless abrasive baths used have a layer of suitable abrasive material on the blade-facing surface to effect grinding of the blade.
  • the endless grinding baths have grooves extending in the drive direction and protruding webs, wherein at least one of the webs has the abrasive surface. In a preferred embodiment, all webs directed towards the blade have an abrasive surface.
  • the endless abrasive belt is configured as a base belt with strips applied in the longitudinal direction, in particular glued-on strips, these strips forming the webs. These strips consist for example of a film having a thickness in the range of, for example, 1/10 mm to 2 mm, wherein the film is firmly connected on one side with the baseband of the endless abrasive belt, and wherein the film on the other side has an abrasive surface or coated with an abrasive agent.
  • This embodiment has the advantage that the endless abrasive belt can be produced very inexpensively by not having to introduce the grooves into the surface of the endless abrasive belt.
  • the baseband and stripes could be in place of gluing _ _
  • the endless abrasive belt can be produced in a variety of ways, for example also such that the endless abrasive belt is produced in a first process step with a continuous layer of abrasive material, and that the grooves are removed from the continuous layer of abrasive material in a second process step, for example, by milling, so that an endless grinding belt is formed with extending in the drive direction grooves and projecting webs.
  • FIG. 1 is a perspective view of a grinder from the front;
  • FIG. 2 shows a detailed view A of the grinding device shown in FIG. 1;
  • FIG. Fig. 3 is a front view of the grinder from the rear; 4 shows a section through the grinding device shown in FIG. 3 along the section line B-B;
  • Fig. 5 is a detail view C of the section shown in Figure 4;
  • Fig. 6 is a detail view of the section shown in Figure 5;
  • FIG. 7 is a detailed view D of the section shown in FIG. 4;
  • FIG. Fig. 8 is a detail view from direction F of the converging abrasive belts shown in Fig. 1;
  • 9 shows a front view of the grinding device from the rear with details regarding the adjusting device;
  • 10 is a front view of the grinder from behind with swung-out abrasive belts.
  • Fig. 1 1 a section through a ground blade. _
  • Figure 1 shows a perspective view of the front and Figure 3 is a front view of the back of an embodiment of the grinding device 1.
  • a first and a second drive and bearing device 4.5 are pivotally mounted, wherein the first and the second drive and
  • Bearing device 4.5 are arranged in the illustrated embodiment in opposite directions, and are arranged mutually symmetrically extending with respect to a plane perpendicular to the base plate 6 level.
  • Each of the two drive and bearing devices 4, 5 serves to hold and drive a first endless abrasive belt 2 or a second endless abrasive belt 3 such that the endless abrasive belts 2, 3 converge at a tip angle ⁇ and form a gap S or a sanding edge S, respectively in the area where a blade can be sanded.
  • Each drive and bearing device 4, 5 comprises two deflection rollers 4a, 4b, 5a, 5b, which are rotatably mounted in bearings 4d, 4f, 5d, 5f, the bearings 4d, 4f, 5d, 5f being spaced from a spacer 4c, 5c are held.
  • the grinding device 1 comprises two drive wheels 4e, 5e, which can be driven by a device (not shown).
  • the drive wheel 4e or 5e is connected via a shaft 4k, 5k to the deflection roller 4b or 5b, in order to drive them and thereby to move the first or second endless grinding belt 2, 3 in the drive direction 2e, 3e.
  • FIG. 4 shows the grinding device 1 shown in FIG. 3 in a section along the section line BB.
  • the housing of the bearings 4f, 5f is 29enkbar on the adjusting bushes 4m, 5m, that is, about a shaft 4k, 5k concentric axis of rotation, stored in the base 7.
  • Guide roller 4b is connected via a common shaft 4k with the drive wheel 4e, said common shaft 4k is rotatably mounted in the bearing 4f.
  • the spacer 4c or 5c is fixed to the adjustment sleeve 4m; 5m connected and thus on the adjustment box 4m; 5m rotatably supported with respect to the sock 7, wherein the center of rotation substantially the course of the common shaft 4k; 5k corresponds.
  • An adjusting lever 8 is, as also shown in FIG.
  • each adjusting bush 4m, 5m has a projecting pin 4g, 5g, which is mounted in a slot 8a, 8b of the adjusting lever 8.
  • FIGS. 9 and 10 this arrangement has the result that the two drive and bearing devices 4, 5 can be pivoted in opposite directions by actuating the adjusting lever 8 in the direction of movement 8c, so that the angle ⁇ can be increased as shown in FIG is, or by pivoting back of the adjusting lever 8, as shown in Figure 9, the angle ⁇ is reduced in size.
  • the adjusting lever 8 may have latching positions in order to easily set a predetermined angle ⁇ .
  • the adjusting lever 8 can also be continuously adjustable so that a selectable angle ⁇ is adjustable as required.
  • the section C marked in FIG. 4 is shown enlarged in FIG.
  • the endless grinding belt 2, 3 has grooves 2b, 3b and webs 2c, 3c running on its surface in the drive direction 2e, 3e, the drive direction 2e, 3e running perpendicular to the viewing plane in the illustrated view.
  • the grooves 2b, 3b and webs 2c, 3c are mutually adapted as shown dimensioned and arranged so that the webs 2c of the first endless abrasive belt 2 can lie in the grooves 3b of the second endless abrasive belt 3, and conversely, the webs 3c of the first endless abrasive belt 3 in the grooves 2b of the second endless abrasive belt 2 may lie, or that the webs 2c, 3c , and grooves 2b, 3b can intermesh.
  • Figure 5 shows this again in an enlarged view. At least one web 2c, 3c has an abrasive surface 2d, 3d.
  • all the webs 2c, 3c have an abrasive surface 2d, 3d, whereas the grooves 2b, 3b have no abrasive surface.
  • the grooves 2b, 3b and webs 2c, 3c are preferably dimensioned such that the mutually facing surfaces do not touch.
  • the grooves 2b, 3b and webs 2c, 3c are preferably configured so wide that adjacent webs 2c, 3c do not touch laterally.
  • the first and second endless grinding belts 2, 3 are advantageously guided in such a way by the deflection rollers 4b, 5b, and has such geometrically configured grooves 2b, 3b and webs 2c, 3c, that the two endless grinding belts 2.3 at the in Figs. 5 and 6, or a section T located in this area, do not touch one another, but the webs 2c, 3c and grooves 2b, 3b come into contact with each other.
  • This juxtaposition of webs 2c, 3c and grooves 2b, 3b has the consequence that forms a clean, well-defined grinding edge S between the two endless abrasive belts 2.3.
  • the endless abrasive belt 2, 3 can, as shown in FIGS. 5 and 6, consist of a plastic strip, on the surface of which grooves 2b, 3b are excluded, so that the projecting webs 2c, 3c form. - -
  • the first and second endless abrasive belt 2, 3 has a contact surface 2f, 3f facing away from the abrasive surface 2d, 3d, which in an advantageous embodiment has a guide to precisely define the position of the endless abrasive belt 2, 3 with respect to the deflection roller 4b, 5b Hold position.
  • this is achieved by the support surface 2f, 3f of the endless abrasive belt 2, 3 and the surface of the deflection roller 4b, 5b have a projection extending in the drive direction 2e, 3e, protruding guide or a matching matched recess.
  • the endless grinding belt 2, 3 has a protruding guide 2a, 3a designed as a web, whereas the deflecting roller 4a, 4b, 5a, 5b has a groove 4h, 5h adapted to the guide 2a, 3a having.
  • Each endless abrasive belt 2, 3 could also have a plurality of mutually spaced webs 2 a, 3 a, so that the webs 2 a, 3 a are mutually spaced in the vertical direction in the view shown in FIG.
  • the pulleys 4b, 5b would then have according to the webs 2a, 3a arranged in opposite directions grooves 4h, 5h, in which the webs 2a, 3a, come to rest.
  • the guide 2a, 3a could also, as shown by dashed lines, laterally be arranged outside, so that they rest against the end face of the guide rollers 4b, 5b.
  • FIG. 2 shows the detail marked A in FIG. 1 in an enlarged representation.
  • the two endless abrasive belts 2,3 are V-shaped in the grinding edge S, in which the two
  • the second endless abrasive belt on the support surface 3f has a protruding Guide web 3a, which runs along the entire endless abrasive belt in the drive direction 3e.
  • the guide web 3a is guided in a groove 5h of the guide roller 5b.
  • FIG. 7 shows an enlarged view of the detail denoted by D in FIG.
  • the endless sanding belt 2 shown in FIG. 7 has a base belt with a flat surface, on which, in the illustrated embodiment, four thin strips 2g extending in the drive direction are arranged.
  • These strips 2g consist for example of a film having a thickness in the range of, for example, 1/10 mm to 2 mm or a thickness in the range of, for example, up to 5 mm, wherein the film is firmly connected on one side with the baseband of the endless abrasive belt 2 , and wherein the film on the other side has an abrasive surface or is coated with an abrasive agent.
  • This embodiment has the advantage that the endless abrasive belt 2 can be produced very inexpensively by not having to introduce the grooves into the surface of the endless abrasive belt 2. Instead, the surface of the base tape is provided with the thin strip, which is preferably made of plastic or metal.
  • the strips form the webs 2d, and the space located between the strips form the grooves 2b.
  • the grooves 2b are at least as wide as the webs 2d, so that the webs 2d could engage in the grooves 2b.
  • the grooves 2b are wider than the webs 2d, in particular such - -
  • FIG. 8 shows a section of the gap S visible in the viewing direction F in detail.
  • the two endless grinding belts 2, 3 run together against the deflection rollers 4b, 5b in a V-shape. Where the webs 2c, 3c of the two endless abrasive belts 2, 3 cross, the grinding edge S is formed.
  • a blade inserted into this sanding edge S can be sanded very easily and in particular uniformly, since the abrasive surfaces 2d, 3d are arranged uniformly and at a small distance in the direction of progression of the sanding edge S.
  • a support device 41, 51 between the deflection rollers 4 a and 4 b or 5 a and 5 b, which effects a force on the bearing surface 2 f, 3 f of the endless grinding belts 2, 3, in order thereby to produce the endless grinding belts 2,3 in the V-shaped gap to bring each other closer, or to reduce the angle ⁇ spanned by the endless grinding belts 2.3.
  • Spreader 41,51 for example, to arrange an air-working suction device, which causes a tightening relation or suction on the support surface 2f, 3f of the endless abrasive belts 2.3, thereby further the endless abrasive belts 2.3 in the V-shaped gap each other - -
  • the abrasive surface of the endless abrasive belt can be achieved in a variety of ways.
  • the endless abrasive belt made of a plastic, possibly reinforced with fibers.
  • the endless abrasive belt could also comprise a fabric.
  • the surface is provided with an abrasive agent, such as tungsten carbide, or hard ceramic material, or carbide and / or diamond and / or Borozon (Boron nitride, BN, in particular cubic boron nitride) and / or Edelkorunde and / or mixtures thereof.
  • FIG. 11 shows a longitudinal section through a blade 30 sharpened or ground with the grinding device according to the invention.
  • the blade 30 When the blade 30 is inserted into the gap S, the two flexible endless grinding belts 2, 3 are pushed slightly to the side, perpendicular to the direction of movement 2e, 3e of the endless grinding belts 2 , 3, so that a blade is produced with slightly concave or curved side edges.
  • a ground blade has particularly advantageous cutting properties.
  • Such a cut is also called ballig cut.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

L'invention concerne un dispositif de meulage (1), en particulier pour meuler et/ou affûter des couteaux, qui comprend une première et une deuxième bande de meulage sans fin (2, 3) entraînée, avec une surface abrasive (2d, 3d). Chaque bande de meulage sans fin (2, 3) est guidée et maintenue par un premier, respectivement un deuxième dispositif d'entraînement et de support (4, 5), de telle sorte que les surfaces abrasives (2d, 3d) des deux bandes de meulage sans fin (2, 3) forment une fente (S) pour meuler une lame. L'invention est caractérisée en ce que le premier et le deuxième dispositif d'entraînement et de support (4, 5) comprennent chacun deux poulies de renvoi (4a, 4b, 5a, 5b), contre lesquelles s'applique la première, respectivement la deuxième bande de meulage sans fin (2, 3), en ce que la première et la deuxième bande de meulage sans fin (2, 3) présentent, sur leur surface abrasive (2d, 3d) des rainures (2b, 3b) et des nervures (2c, 3c) s'étendant dans la direction d'entraînement (2e, 3e), en ce qu'au moins une nervure (2c, 3c) présente la surface abrasive (2d, 3d), et en ce que les deux bandes de meulage sans fin (2, 3) sont disposées de manière à s'étendre en sens inverse de telle sorte que les rainures (2b, 3b) et les nervures (2c, 3c) des deux bandes de meulage sans fin (2, 3) se situent les unes dans les autres en sens inverse dans le sens de l'entraînement (2e, 3e) le long d'une section partielle (T).
PCT/EP2008/058000 2007-07-07 2008-06-24 Dispositif de meulage WO2009007231A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07112010A EP2014414A1 (fr) 2007-07-07 2007-07-07 Meuleuse à bande pour l'affûtage des couteaux
EP07112010.9 2007-07-07

Publications (1)

Publication Number Publication Date
WO2009007231A1 true WO2009007231A1 (fr) 2009-01-15

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Application Number Title Priority Date Filing Date
PCT/EP2008/058000 WO2009007231A1 (fr) 2007-07-07 2008-06-24 Dispositif de meulage

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EP (1) EP2014414A1 (fr)
WO (1) WO2009007231A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010007171A1 (fr) * 2008-07-17 2010-01-21 Visonn Gmbh & Co. Kg Machine à aiguiser pour lames de coupe
WO2013134198A1 (fr) * 2012-03-06 2013-09-12 Born Sharp, Llc Système d'affûtage de rasoir
DE102017008394A1 (de) * 2017-09-07 2019-03-07 Lubas Maschinen Gmbh Schleifen von Scheibenmessern
CN112605727A (zh) * 2021-01-15 2021-04-06 广州钇普科技有限公司 一种自动改变的打磨角度的蛤刃磨刀器

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1398751B1 (it) * 2009-10-20 2013-03-18 Menegon Dispositivo di affilatura per lame
EP2699384B1 (fr) 2011-04-20 2015-03-18 Menegon, Ennio Dispositif d'affûtage pour lame tranchante
CN102699797B (zh) * 2012-05-28 2014-08-20 张景宏 一种五金工具表面磨削机
CN105269436B (zh) * 2015-08-06 2017-11-10 阳江鸿丰实业有限公司 砂带磨床
CN105945705B (zh) * 2016-06-25 2018-08-31 东莞富鼎兴精密电子科技有限公司 一种五金v形条抛光装置
CN107030586B (zh) * 2017-05-21 2018-11-06 温州神一轴业有限公司 一种智能加工规则形状工件的抛光装置
CN111975602A (zh) * 2020-07-16 2020-11-24 芜湖市晟源电器有限公司 一种汽车尾灯生产用表面抛光设备

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2222361A (en) * 1939-11-01 1940-11-19 Joseph E Burns Sharpening device for edged implements
US2648174A (en) * 1950-03-28 1953-08-11 Bikles Fred Sharpening and polishing machine
US2737763A (en) * 1954-04-19 1956-03-13 Jr John B Gury Sharpener for cloth cutting machine
US3775913A (en) * 1971-11-03 1973-12-04 Eastman Machine Co Knife sharpening mechanism
US3956857A (en) * 1973-04-20 1976-05-18 Charles Weisman Ice skate blade sharpening machine
DE10314695A1 (de) * 2003-03-28 2004-10-07 C. & E. Fein Gmbh Bandschleifgerät
JP2007229886A (ja) * 2006-03-02 2007-09-13 Misawa Homes Co Ltd 木目形成用サンディングベルトの製造方法および木目形成用サンディングベルト

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2222361A (en) * 1939-11-01 1940-11-19 Joseph E Burns Sharpening device for edged implements
US2648174A (en) * 1950-03-28 1953-08-11 Bikles Fred Sharpening and polishing machine
US2737763A (en) * 1954-04-19 1956-03-13 Jr John B Gury Sharpener for cloth cutting machine
US3775913A (en) * 1971-11-03 1973-12-04 Eastman Machine Co Knife sharpening mechanism
US3956857A (en) * 1973-04-20 1976-05-18 Charles Weisman Ice skate blade sharpening machine
DE10314695A1 (de) * 2003-03-28 2004-10-07 C. & E. Fein Gmbh Bandschleifgerät
JP2007229886A (ja) * 2006-03-02 2007-09-13 Misawa Homes Co Ltd 木目形成用サンディングベルトの製造方法および木目形成用サンディングベルト

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010007171A1 (fr) * 2008-07-17 2010-01-21 Visonn Gmbh & Co. Kg Machine à aiguiser pour lames de coupe
WO2013134198A1 (fr) * 2012-03-06 2013-09-12 Born Sharp, Llc Système d'affûtage de rasoir
DE102017008394A1 (de) * 2017-09-07 2019-03-07 Lubas Maschinen Gmbh Schleifen von Scheibenmessern
CN112605727A (zh) * 2021-01-15 2021-04-06 广州钇普科技有限公司 一种自动改变的打磨角度的蛤刃磨刀器
CN112605727B (zh) * 2021-01-15 2021-08-27 台州市黄岩智威模具有限公司 一种自动改变的打磨角度的蛤刃磨刀器

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