EP0442083B1 - Dispositif à affuter des couteaux - Google Patents

Dispositif à affuter des couteaux Download PDF

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Publication number
EP0442083B1
EP0442083B1 EP90124014A EP90124014A EP0442083B1 EP 0442083 B1 EP0442083 B1 EP 0442083B1 EP 90124014 A EP90124014 A EP 90124014A EP 90124014 A EP90124014 A EP 90124014A EP 0442083 B1 EP0442083 B1 EP 0442083B1
Authority
EP
European Patent Office
Prior art keywords
grinding
knife
grinding device
ring
housing
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
EP90124014A
Other languages
German (de)
English (en)
Other versions
EP0442083A1 (fr
Inventor
Jan Hendrik Hulskotte
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 AT90124014T priority Critical patent/ATE103521T1/de
Publication of EP0442083A1 publication Critical patent/EP0442083A1/fr
Application granted granted Critical
Publication of EP0442083B1 publication Critical patent/EP0442083B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a grinding device for knives according to the preamble of the main claim.
  • Knives which are used professionally in slaughterhouses or the like have to be sharpened very frequently, and if this work is carried out by hand, there is the disadvantage that the cutting edge is ground "on sight", which usually does not result in a uniform cutting surface . Often, too much of the cut surface is removed in this grinding process, so that the knives have a significantly shorter service life, i. H. knife wear is very high.
  • a generic grinding machine in which a pot-like grinding wheel is used, the is arranged within a housing.
  • the front of this housing is closed by a cover which has a cutout for feeding the workpiece to be machined, this workpiece being attached to the end face of the cup-like grinding wheel.
  • the workpiece to be ground is not fixed in a certain position and the curvature of the cup-shaped grinding wheel has no influence on the grinding process.
  • the invention has for its object to provide a grinding device for knives, which can also be used in smaller companies and which ensures that the cutting edge can always be ground evenly and without too much material removal.
  • the knife is expressed in a guide is used and an annular grinding device, a slip ring, is used, and the grinding process takes place along the inside of the ring surface.
  • the knife is held by the handle and inserted into an opening in a housing containing the slip ring and moved along the ring surface of the slip ring via a guide.
  • the knife is supported with its knife back on the guide.
  • the actual grinding process takes place within a drum, so that it is not possible for the knife to be knocked out of the hand and metal dust to escape to the outside.
  • the housing is preferably made watertight at least in the lower region, so that the housing can be partially filled with water, so that the grinding process takes place on a wet ring surface of the slip ring.
  • the water also serves at the same time to bind the abrasion, so that dust generation is eliminated.
  • a housing 1 is drawn, the accommodates in its interior a drum 2 which is driven by a motor 4 which can be seen in FIG. 1.
  • a slip ring 3 is fixed via appropriate clamping means, so that when the drum 2 is driven, the slip ring 3 is driven in a rotating manner. With this type of attachment of the actual slip ring 3 to the drum 2, the slip ring 3 can be quickly attached and exchanged quickly.
  • the front of the housing 1 is closed by a cover 11, which is shown removed in FIG. 2.
  • This cover 11 has two openings on its front side, which are closed by two disks 12 and 14 in the interior of the cover.
  • These two disks 12 and 14 are supported in the lower area on a guide 15 and are in the upper part with an adjusting device 16 and 17, z. B. a screw drive, so that an adjustment of the disks 12, 14 in the guide 15 is possible.
  • the disks 12, 14 themselves have slots 6 and 7 and bear on their back, i. H. in the interior of the housing 1 directed knife guides 8 and 9, which are designed and arranged so that when the knife, not shown, the knife back is on the lower edge of the knife guides 8 and 9 and the knife edge on the inside, d. H. the ring surface, the slip ring 3 comes to rest.
  • the cover 11 carries a direction of rotation switch 5, with which the direction of rotation of the slip ring 3 can be changed, ie rotates once the slip ring 3 to the right and once the slip ring 3 turns to the left.
  • a safety disk 10 is adjusted so that one or the other slot 6 or 7 is closed depending on the direction of rotation of the slip ring 3.
  • the direction of rotation switch is to the right, i. H. the right slot 7 is open and the left slot 6 is closed and the slip ring 3 rotates counterclockwise within the housing 1.
  • the slots 6 and 7 are arranged in the disks 12 and 14 so that, when the knife is inserted, they make contact of the knife edges with the inside, ie. H. the ring side, the slip ring 3. This can be seen particularly clearly from FIG. 1, where part of the slip ring 3 can be seen in the slot 7.
  • the adjusting devices 16 and 17 enable the slits 6 and 7 to be adjusted in relation to the inner surface of the slip ring 3, so that readjustment is possible as a result.
  • the inside of the cover 11 is provided with a circumferential seal 18 which comes to rest on the end face 22 of the housing 1 when the cover 11 is closed. Furthermore, 1 water level viewing window 20 and 21 are arranged in the lower region of the housing, which control the height of the water level allow inside the housing. The water can be filled into the housing via a water filler connection 19 and a corresponding water outlet connection cannot be seen from the drawing and is provided in the lower region of the housing 1.
  • a knife is inserted into the slot 7 and thus into the knife guide 8 and the cutting edge of the knife is now pressed against the inside of the slip ring 3.
  • the slip ring 3 is made of flexible material, with the drum 2 made of relatively flexible material, e.g. B. plastic can exist.
  • the surface of the knife to be ground can now be conveniently pressed against the inside of the slip ring 3 and this easily adapts to the shape of the cut surface of the object to be ground.
  • the cut surface is "lapped", so to speak, which results in a very fine cutting edge.
  • the slot 6 is then used so that the other side of the cutting edge can also be ground.
  • the slot 6 remains closed until the actual slip ring 3 is driven in the opposite direction by actuating the direction of rotation switch 5, ie now rotates clockwise and thus also in the slot 6 and the knife guide 9 knives used creates a grinding cut.
  • the safety plate 10 is also changed over, ie the two components 5 and 10 are coupled to one another in such a way that only the appropriate slot opening is free.
  • the procedure here can be such that when the motor 4 is switched off and the direction of rotation switch 5 in the arrangement according to FIG. 1 is zero, the security plate 10 closes both slots 6 and 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Removal Of Insulation Or Armoring From Wires Or Cables (AREA)

Claims (12)

  1. Dispositif d'affûtage pour lames, comprenant un anneau abrasif (3) agencé dans un carter (1) et entraîné en rotation, le carter (1) étant fermé au droit de sa face avant par un couvercle (11) et présentant une ouverture servant d'accès pour un objet à affûter, caractérisé en ce que l'anneau abrasif (3) est porté par un tambour (2) disposé à l'intérieur du carter (1) et en ce que deux guide-lames (8,9) sont prévus à l'intérieur du carter (1) dans la région de la surface abrasive de l'anneau abrasif (3) de telle manière que, lorsque la lame est mise en place, le dos de la lame prenne appui sur les guide-lames (8,9) et le tranchant de la lame vienne s'appuyer contre la surface annulaire intérieure de l'anneau abrasif (3) de sorte que, lorsque la lame est mise en place, le tranchant entre en contact traînant avec la surface abrasive de l'anneau abrasif (3).
  2. Dispositif d'affûtage selon la revendication 1, caractérisé en ce que l'anneau abrasif (3) est flexible.
  3. Dispositif d'affûtage selon la revendication 1 ou 2, caractérisé en ce que l'anneau abrasif (3) est porté par un tambour entraîné (2) de manière à pouvoir être remplacé facilement.
  4. Dispositif d'affûtage selon l'une des revendications précédentes, caractérisé en ce que les guide-lames (8,9) sont réglables par rapport à la surface abrasive de l'anneau abrasif (3).
  5. Dispositif d'affûtage selon l'une des revendications précédentes, caractérisé en ce que les guide-lames (8,9) sont disposés sur le côté intérieur de l'anneau abrasif (3) et le sens de rotation de l'anneau abrasif (3) est réversible.
  6. Dispositif d'affûtage selon la revendication 5, caractérisé en ce que l'inversion du sens de rotation de l'anneau abrasif (3) est commandée par un commutateur de sens de rotation (5) d'un moteur d'entraînement (4) qui peut être manoeuvré de l'extérieur.
  7. Dispositif d'affûtage selon la revendication 6, caractérisé en ce qu'une plaque de sécurité (10) est accouplée solidairement en rotation au commutateur de sens de rotation (5) de telle manière que, selon le sens de rotation établi de l'anneau abrasif (3), l'un ou l'autre guide-lame (8,9) est fermé par la plaque de sécurité (10).
  8. Dispositif d'affûtage selon l'une des revendications précédentes, caractérisé en ce que les guide-lames (8,9) sont en forme de V.
  9. Dispositif d'affûtage selon l'une des revendications précédentes, caractérisé en ce que le tambour (2) qui porte l'anneau abrasif (3) est sensiblement fermé à l'exception de l'ouverture avant.
  10. Dispositif d'affûtage selon l'une des revendications précédentes, caractérisé en ce que les guide-lames (8,9) possèdent une longueur supérieure à la largeur de la surface abrasive de l'anneau abrasif (3).
  11. Dispositif d'affûtage selon l'une des revendications précédentes, caractérisé en ce que le carter (1) est muni d'un raccord (19) de remplissage d'eau.
  12. Dispositif d'affûtage selon la revendication 11, caractérisé en ce que des fenêtres (20,21) pour l'observation du niveau d'eau sont prévues dans le carter.
EP90124014A 1990-02-12 1990-12-13 Dispositif à affuter des couteaux Expired - Lifetime EP0442083B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90124014T ATE103521T1 (de) 1990-02-12 1990-12-13 Schleifvorrichtung fuer messer.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9000335A NL9000335A (nl) 1990-02-12 1990-02-12 Slijpinrichting voor het slijpen van messen.
NL9000335 1990-02-12

Publications (2)

Publication Number Publication Date
EP0442083A1 EP0442083A1 (fr) 1991-08-21
EP0442083B1 true EP0442083B1 (fr) 1994-03-30

Family

ID=19856580

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90124014A Expired - Lifetime EP0442083B1 (fr) 1990-02-12 1990-12-13 Dispositif à affuter des couteaux

Country Status (5)

Country Link
US (1) US5133157A (fr)
EP (1) EP0442083B1 (fr)
AT (1) ATE103521T1 (fr)
DE (2) DE9005051U1 (fr)
NL (1) NL9000335A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110281099A (zh) * 2019-06-21 2019-09-27 宁波爵盛科技有限公司 一种铁环的打磨装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080132154A1 (en) * 2006-12-05 2008-06-05 Jewett Tony C Instrument sharpener system
US8597083B2 (en) * 2009-12-03 2013-12-03 Michael G. Borsch Blade sharpening system for multiple blade shapes
TW201210722A (en) * 2010-09-03 2012-03-16 Rexon Ind Corp Ltd Tile cutter with a liquid level display
US8858299B2 (en) * 2012-10-05 2014-10-14 Thomas Benjamin Boelter Device and method for processing a blade edge
CN109894933A (zh) * 2019-04-14 2019-06-18 肖玉忠 一种便携式磨刃机

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2751721A (en) * 1953-07-13 1956-06-26 Richard B Smith Blade sharpening apparatus
US3140526A (en) * 1960-03-25 1964-07-14 Tlamicha Adolf Jaroslav Method and apparatus for delustering plastic thread for textiles
AT236831B (de) * 1962-04-25 1964-11-10 Feinmechanik G M B H Schleifmaschine
US3332173A (en) * 1964-06-30 1967-07-25 Cory Corp Sharpener for cutting instruments
US3546819A (en) * 1968-10-17 1970-12-15 Univ California Microtome knife sharpener
NL7603396A (nl) * 1975-05-10 1976-11-12 Streicher Emide Metall Messenslijper.
US4236355A (en) * 1978-07-24 1980-12-02 Control Data Corporation Precision grinding wheel mount
DE3151925A1 (de) * 1981-12-30 1983-07-07 Bayer Ag, 5090 Leverkusen Elastische schleifmaterialien auf basis von polyurethanharnstoffgelen und ein verfahren zu ihrer herstellung
US4627194A (en) * 1984-03-12 1986-12-09 Friel Daniel D Method and apparatus for knife and blade sharpening
IT1184339B (it) * 1984-03-14 1987-10-28 Hauni Werke Koerber & Co Kg Dispositivo per affilare i coltelli rotanti di una taglierina per tabacco
US4974370A (en) * 1988-12-07 1990-12-04 General Signal Corp. Lapping and polishing machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110281099A (zh) * 2019-06-21 2019-09-27 宁波爵盛科技有限公司 一种铁环的打磨装置
CN110281099B (zh) * 2019-06-21 2021-03-30 宁波爵盛科技有限公司 一种铁环的打磨装置

Also Published As

Publication number Publication date
NL9000335A (nl) 1991-09-02
DE59005204D1 (de) 1994-05-05
DE9005051U1 (de) 1990-08-16
EP0442083A1 (fr) 1991-08-21
ATE103521T1 (de) 1994-04-15
US5133157A (en) 1992-07-28

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