WO2012025089A2 - Messerschleifer mit einem messerhalter - Google Patents
Messerschleifer mit einem messerhalter Download PDFInfo
- Publication number
- WO2012025089A2 WO2012025089A2 PCT/DE2011/001544 DE2011001544W WO2012025089A2 WO 2012025089 A2 WO2012025089 A2 WO 2012025089A2 DE 2011001544 W DE2011001544 W DE 2011001544W WO 2012025089 A2 WO2012025089 A2 WO 2012025089A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- knife
- axis
- holder
- blade
- grindstone
- Prior art date
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
-
- 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
- B24B3/365—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades of rotary mower blades
-
- 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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/066—Work supports, e.g. adjustable steadies adapted for supporting work in the form of tools, e.g. drills
Definitions
- Knife sharpener with a knife holder
- the invention relates to a knife he schleif er with a knife holder.
- a knife is usually passed along a grindstone.
- An automation of knife sharpening devices allows a high precision of the grinding process.
- difficulties for automatic operation arise when the knives have special contours requiring special guidance of the grinding wheel relative to the knife.
- Many knives, such as lawnmower knives have opposed cutting edges. To precisely grind such knives, they must be clamped. In this case, one side of the knife is first ground in a clamped position. Subsequently, the knife is clamped in the rotated position again, so that the second side of the knife can be ground.
- the invention is therefore based on the object of further developing a knife sharpener with a knife holder such that even knives with a complicated cutting contour can be ground with a simple knife sharpener.
- This object is achieved with a knife sharpener with a knife holder in which the knife holder is rotatably mounted about a first axis, wherein the first axis is rotatably mounted about a second axis arranged perpendicular to the second axis.
- This special bearing of the knife holder makes it possible to grind knives quickly and precisely with two opposite cutting edges.
- the movement of the grindstone can remain within narrow limits. This saves time that would otherwise be necessary for the movement of the grindstone.
- By rotating the knife holder about a vertical axis after grinding one side of the double-edged knife, the other edge can be ground.
- the rotation of the knife holder about a horizontal axis allows a simple way to adjust the angle of attack of the knife relative to the grindstone and optionally also to vary during the grinding process.
- the special holder of the knife thus enables a simple machine structure, a grinding of individually designed cutting edges and a particularly fast grinding process.
- the knife sharpener has a grindstone which is displaceable on a first straight line and on a second straight line arranged perpendicular to the first straight line. While the knife holder is rotatable about two mutually perpendicular axes, the grindstone is movable on two mutually perpendicular lines. This allows a simple machine construction, in which the grindstone is preferably displaceable on a vertical straight line and on a horizontal straight line. The interaction of the rotational movements on the knife holder and the lateral displacements on the grinding stone makes it possible to grind a wide variety of knives quickly and precisely.
- the second axis is parallel to the first straight line. It is also advantageous if the first axis runs parallel to the second straight line. This facilitates the structure, as this, for example, all lines and axes can be formed either horizontally or vertically.
- the knife holder is arranged concentrically to the second, preferably vertically arranged axis.
- a simple structure results when the knife holder is arranged eccentrically to the first, preferably horizontal axis. This makes it possible to arrange the motor for the horizontal axis below the knife holder and to provide the vertical axis engine under the horizontal axis engine.
- the first axis on the opposite side of the knife holder has a weight that rotates with the axis.
- This weight is matched to the weight of the knife holder with the knife, so that the moment exerted by the knife holder with the knife on the axis is substantially canceled by the moment exerted by the weight on the axis.
- a simple motor enough to pivot the horizontal axis with the attached blade holder.
- the blade holder is rotatable about less than 360 degrees about the second axis.
- a simple design of the knife sharpener is achieved by the fact that the first straight line on which the grindstone is moved, is horizontal.
- a high precision with a fast feed is achieved in that the grindstone is vertically displaceable with a first spindle horizontally and with a second spindle.
- a preferred embodiment provides that the knife holder is designed as a balance. The knife holder thus offers the possibility of checking whether the knife attached to it has the same weight on both sides. If the knife is heavier on one side than on the other side, this difference in the grinding process can be compensated. This makes it possible to balance the knife during the grinding process.
- FIG. 1 shows a schematic view of a knife sharpener
- Figure 2 is a detail view of the rotatable mounting for the knife holder.
- the knife sharpener 1 shown in FIG. 1 consists essentially of the knife holder 2, the knife holder bearing 3 and the grinding stone 4.
- the knife holder bearing 3 consists of a holding table 7, which is fixed to a first axis 8.
- the axis 8 is rotatably mounted in a block 9. This block 9 is in turn rotatably mounted about a second axis 10.
- Weights 11, 12 are attached to the first axle 8 in such a way that the weights rotate with the axle 8.
- brackets 13 and 14 are fixed to which height-adjustable devices 15, 16 are attached to support the knife 5.
- the grindstone 4 is moved up and down along a vertical first straight 17 by a first spindle (not shown).
- a second spindle allows the grindstone 4 to be displaced along a horizontal second straight line 18. This allows the motor 19 of the grindstone 4 to be accurately moved up and down and back and forth.
- the knife holder bearing 3 is first rotated about the axis 10 for the grinding process by means of a motor (not shown) according to the arrow 20 so that the knife is located approximately below the grindstone 4. With the motor 21, the knife holder 2 is rotated along the direction of arrow 22 about the first axis 8, that the knife 5 is aligned in an optimal position obliquely to the grindstone 4. Subsequently, the grindstone 4 can be lowered with the spindle and be moved horizontally so that it moves over the blade of the knife 5.
- the first side 23 of the knife 5 is ground.
- the knife 5 is rotated about the axis 10 so that the second side 24 of the knife 5 is positioned approximately below the grindstone 4.
- the motor 21 By means of the motor 21, in turn, the oblique position of the blade 5 relative to the grindstone 4 is set. represents before the grindstone 4 is lowered and moved on the cutting edge of the blade 5 back and forth.
- a height-adjustable system 25 serves as an attachment for the table 7 in a special angular position of the table 7 relative to the block 9.
- the knife sharpener makes it possible to move the knife and the grindstone remotely controlled. The few given possibilities of movement make it possible to grind a wide variety of knives with a simple device.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Soil Working Implements (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112011102690T DE112011102690A5 (de) | 2010-08-11 | 2011-08-03 | Messerschleifer mit einem messerhalter |
US13/814,951 US8986075B2 (en) | 2010-08-11 | 2011-08-03 | Blade grinder comprising a blade holder |
EP11799610.8A EP2603352B1 (de) | 2010-08-11 | 2011-08-03 | Messerschleifer mit einem messerhalter |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010034048A DE102010034048A1 (de) | 2010-08-11 | 2010-08-11 | Messerschleifer mit einem Messerhalter |
DE102010034048.0 | 2010-08-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2012025089A2 true WO2012025089A2 (de) | 2012-03-01 |
WO2012025089A3 WO2012025089A3 (de) | 2012-05-10 |
Family
ID=45400810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2011/001544 WO2012025089A2 (de) | 2010-08-11 | 2011-08-03 | Messerschleifer mit einem messerhalter |
Country Status (4)
Country | Link |
---|---|
US (1) | US8986075B2 (de) |
EP (1) | EP2603352B1 (de) |
DE (2) | DE102010034048A1 (de) |
WO (1) | WO2012025089A2 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103522178A (zh) * | 2013-10-25 | 2014-01-22 | 茂名市怡华机械有限公司 | 紧凑高效型磨刀机磨头 |
DE202019105860U1 (de) | 2019-10-22 | 2019-12-16 | Alfred Siemer | Schleifeinrichtung zum Schleifen mindestens eines Messers mit mindestens einem Schleifstein |
CN112692707B (zh) * | 2020-12-24 | 2022-04-12 | 枣庄北航机床创新研究院有限公司 | 一种六联动抛光方法 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US828853A (en) * | 1905-10-23 | 1906-08-14 | James H Perks | Shears and scissors sharpener. |
US981810A (en) * | 1906-04-20 | 1911-01-17 | Cleveland Stone Company | Grindstone attachment. |
US883019A (en) * | 1907-12-17 | 1908-03-24 | Michael Henry | Scissors-sharpener. |
US2165929A (en) * | 1937-04-09 | 1939-07-11 | John A Lentz | Instrument sharpener |
US4502457A (en) * | 1982-08-27 | 1985-03-05 | Raul C. Montoya | Universal multiple angle work piece holder with multiple tool conversion features |
US4841678A (en) * | 1988-01-19 | 1989-06-27 | Thomas Peter C | Tool sharpening apparatus |
US4936053A (en) * | 1988-10-14 | 1990-06-26 | Will Shanelec | Lawn mower blade sharpener apparatus |
US5331774A (en) * | 1992-07-09 | 1994-07-26 | Domenella David D | Method and device for sharpening chiral blades of dental instruments |
US5547419A (en) * | 1994-08-31 | 1996-08-20 | Hulnicki; Andrew M. | Knives and scissors sharpener |
GB9802526D0 (en) * | 1998-02-06 | 1998-04-01 | Bernhard Stephen G | Rotary mower blade grinding |
US6786806B2 (en) * | 2003-01-17 | 2004-09-07 | Harold D. Maus, Jr. | Rotary mower blade sharpener |
US20070281594A1 (en) * | 2003-04-17 | 2007-12-06 | Lee Valley Tools Ltd. | Honing guide assembly with camber roller |
WO2007124466A2 (en) * | 2006-04-20 | 2007-11-01 | Swartz Ronald F | Self-aligning honing device |
US7413504B2 (en) * | 2006-10-20 | 2008-08-19 | Michael Lytinas | Blade sharpening device with blade contour copying device |
DE102008023081A1 (de) * | 2007-11-21 | 2009-05-28 | Johannes Franzen Gmbh & Co. | Kontinuierliche Schleifvorrichtung |
US20100203808A1 (en) * | 2009-02-06 | 2010-08-12 | TMI Products Inc. | Lathe gouge sharpening tool |
US7967666B1 (en) * | 2010-05-06 | 2011-06-28 | Marvin Messner | Blade sharpener |
-
2010
- 2010-08-11 DE DE102010034048A patent/DE102010034048A1/de not_active Withdrawn
-
2011
- 2011-08-03 DE DE112011102690T patent/DE112011102690A5/de active Pending
- 2011-08-03 US US13/814,951 patent/US8986075B2/en active Active
- 2011-08-03 EP EP11799610.8A patent/EP2603352B1/de active Active
- 2011-08-03 WO PCT/DE2011/001544 patent/WO2012025089A2/de active Application Filing
Non-Patent Citations (1)
Title |
---|
None |
Also Published As
Publication number | Publication date |
---|---|
DE102010034048A1 (de) | 2012-02-16 |
DE112011102690A5 (de) | 2013-05-29 |
EP2603352B1 (de) | 2014-04-16 |
WO2012025089A3 (de) | 2012-05-10 |
EP2603352A2 (de) | 2013-06-19 |
US20130157547A1 (en) | 2013-06-20 |
US8986075B2 (en) | 2015-03-24 |
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