NO782269L - CIRCLE SAW. - Google Patents
CIRCLE SAW.Info
- Publication number
- NO782269L NO782269L NO782269A NO782269A NO782269L NO 782269 L NO782269 L NO 782269L NO 782269 A NO782269 A NO 782269A NO 782269 A NO782269 A NO 782269A NO 782269 L NO782269 L NO 782269L
- Authority
- NO
- Norway
- Prior art keywords
- height
- segment
- segments
- circular saw
- steps
- Prior art date
Links
- 238000005520 cutting process Methods 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims 1
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/12—Cut-off wheels
- B24D5/123—Cut-off wheels having different cutting segments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/12—Saw-blades or saw-discs specially adapted for working stone
- B28D1/121—Circular saw blades
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Sawing (AREA)
- Milling Processes (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
SirkelsagCircular saw
Denne oppfinnelse vedrører^en sirkelsag, særlig for saging av natursten, med langs omkretsen i avstand fra hverandre anordnede skjæresegmenter. This invention relates to a circular saw, in particular for sawing natural stone, with cutting segments arranged at a distance from each other along the circumference.
Av økonomiske årsaker har man i det siste gått over til å forsyne segmentsirkelsager for naturstenindustrien med segmenter som har forholdsvis stor belegghøyde. For economic reasons, they have recently switched to supplying segmented circular saws for the natural stone industry with segments that have a relatively large coating height.
Slike segmentsirkelsager er mer økonomiske enn sirkelsager med segmenter med normal belegghøyde, ettersom omkostningene ved fremstilling av segmenter med forskjellig belegghøyde er nesten like, slik at det bare må tas hensyn til det forøkede materialfor-bruk, særlig diamant eller f.eks. kubisk krystallinsk bornitrid. Sirkelsager med segmenter med forholdsvis stor belegghøyde kan derfor fremstilles forholdsvis prisgunstig. Such segment circular saws are more economical than circular saws with segments with normal coating height, as the costs of manufacturing segments with different coating heights are almost the same, so that only the increased material consumption, particularly diamond or e.g. cubic crystalline boron nitride. Circular saws with segments with a relatively large coating height can therefore be produced relatively inexpensively.
En ulempe ved segmentsirkelsager med segmenter med stor belegghøyde, særlig av størrelsesorden med diametere 1,5 til 3 m, består i det utilstrekkelige, siderettede frisnitt sammenlignet med segmentsirkelsager med liten belegghøyde. Dette skyldes at den sidevise berøringsflate i det stenmateriale som skal sages, vokser i samme utstrekning som segmentenes belegghøyde. A disadvantage of segment circular saws with segments with a large covering height, especially of the order of magnitude with diameters of 1.5 to 3 m, consists in the insufficient side-directed clearance compared to segment circular saws with a small covering height. This is because the lateral contact surface in the stone material to be sawn grows to the same extent as the covering height of the segments.
Man har allerede forsøkt å redusere denne sidefriksjon ved bedre frisliping, f.eks. ve'd konisk utforming av segmentene. Ulempen som fåes med på kjøpet er at at det ikke finnes noen til-strekkelig siderettet minsteføringsflate. Denne ulempe opptrer også når segmentene fra begynnelsen av er fremstilt koniske, f. eks. ved pressing eller forming under en sintringsprosess. Slike segmentsirkelsager med segmenter med stor belegghøyde har lett for å forlate snittplanet, altså skjære skjevt, slik at de oppsa-gede plater eller blokker krever betydelig etterarbeide, f.eks. ettersliping, for sikring av geometrisk riktig form med plane flater. Attempts have already been made to reduce this side friction by better free grinding, e.g. ve'd conical design of the segments. The disadvantage that comes with the purchase is that there is no sufficient side-directed minimum guide surface. This disadvantage also occurs when the segments are made conical from the start, e.g. by pressing or forming during a sintering process. Such segment circular saws with segments with a large covering height can easily leave the cutting plane, i.e. cut crookedly, so that the cut-off slabs or blocks require considerable finishing work, e.g. regrinding, to ensure a geometrically correct shape with flat surfaces.
Hensikten med oppfinnelsen er å unngå de nevnte ulemper The purpose of the invention is to avoid the aforementioned disadvantages
ved sirkelsager med segmenter med forholdsvis stor belegghøyde.in the case of circular saws with segments with a relatively large covering height.
I samsvar med oppfinnelsen er dette oppnådd ved at segmentene er utformet med trinnaktig, radialt innover redusert bredde. Derved tilveiebringes det flere trinn i et segment, hvorav de enkelte trinn kan svare til belegghøyden av et vanlig segment og dermed ikke fører med seg de ulemper som fåes ved en konisk utforming av et forholdsvis høyt segment eller ulemper med et forholdsvis høyt segment med parallelle vegger. In accordance with the invention, this is achieved by the segments being designed with stepped, radially inwardly reduced width. Thereby, several steps are provided in a segment, of which the individual steps can correspond to the covering height of a normal segment and thus do not entail the disadvantages of a conical design of a relatively high segment or disadvantages of a relatively high segment with parallel walls .
Man må gå ut fra den erkjennelse at etter tommelregelen svarer nedslitningen av et segment i lengderetningen under drift til omtrent 10% av segmentets høyde. I samsvar med dette forut-setter oppfinnelsen at et trinn av et segment er omtrent 10% smalere enn høyden av det overliggende trinn. Når det ytterste trinn av segmentet slites ned, så-avtar under den kontinuerlige One must proceed from the recognition that, according to the rule of thumb, the wear and tear of a segment in the longitudinal direction during operation corresponds to approximately 10% of the segment's height. In accordance with this, the invention assumes that a step of a segment is approximately 10% narrower than the height of the overlying step. When the outermost step of the segment wears down, so-declines below the continuous
nedslitning helt ned til nivået for det underliggende trinn bredden av det ytterste trinn med 10%, slik at det neste trinn kan arbeide med sin fulle bredde med en gang det kommer til inn-grep med materialet. wear all the way down to the level of the underlying step, the width of the outermost step by 10%, so that the next step can work with its full width as soon as it comes into contact with the material.
Forholdsvis enkelt kan man ta hensyn til dette ved fremstilling av de enkelte segmenter, slik at trinnene utformes med samme høyde, hvilket, innebærer at også breddeforskjellen for trinnene blit innbyrdes like. Relatively easily, this can be taken into account when producing the individual segments, so that the steps are designed with the same height, which means that the width difference for the steps will also be equal to each other.
Det ha^ vist seg å være særlig fordelaktig å utføre segmentet med tre trinn som kommer til å virke etter hverandre.. Et enkelt segment kan da ha en høyde fra omtrent atten til fireogtyve millimeter. Ved tretrinns utførelse og en totalhøyde på atten millimeter får hvert trinn et høyde på seks millimeter. Går man. ut fra at det ene trinn er omtrent ti prosent smalere enn høyden av det overliggende trinn, så blir breddeforskjellen for de enkelte trinn 0,6 millimeter. It has been found to be particularly advantageous to perform the segment with three steps which will act one after the other. A single segment can then have a height of approximately eighteen to twenty-four millimeters. With a three-step design and a total height of eighteen millimeters, each step gets a height of six millimeters. If you go. assuming that one step is approximately ten percent narrower than the height of the overlying step, the difference in width for the individual steps is 0.6 millimetres.
Oppfinnelsen skal forklares nærmere nedenfor ved hjelp av et eksempel og under henvisning til tegningen, hvor: Fig. 1 viser et deltverrsnitt av et segment for en sirkelsag, og fig. 2 er et sideriss til fig. 1. The invention will be explained in more detail below by means of an example and with reference to the drawing, where: Fig. 1 shows a partial cross-section of a segment for a circular saw, and Fig. 2 is a side view of fig. 1.
Sirkelsagbladet er på tegningen betegnet med 1 og er for-synt langs omkretsflaten med flere skjæresegmenter 2, hvorav ett er vist på tegningen. Segmentet omfatter tre trinn 3,4 og 5. Disse trinn har samme høyde H 1 på 6,6 mm og det ytterste trinn 3 har en bredde B, på 12,3 mm, det midterste trinn 4 har en bredde B2på 11,7 mm og det innerste trinn 5 en bredde på 11,1 mm. Breddeforskjellen mellom de enkelte trinn er altså 0,6 mm. Dette svarer til omtrent 10% av høyden H, som er 6,6 mm. The circular saw blade is designated 1 in the drawing and is provided along the circumferential surface with several cutting segments 2, one of which is shown in the drawing. The segment comprises three steps 3,4 and 5. These steps have the same height H 1 of 6.6 mm and the outermost step 3 has a width B of 12.3 mm, the middle step 4 has a width B2 of 11.7 mm and the innermost step 5 a width of 11.1 mm. The width difference between the individual steps is therefore 0.6 mm. This corresponds to approximately 10% of the height H, which is 6.6 mm.
Claims (5)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE7724960U DE7724960U1 (en) | 1977-08-11 | 1977-08-11 | circular saw |
Publications (1)
Publication Number | Publication Date |
---|---|
NO782269L true NO782269L (en) | 1979-02-13 |
Family
ID=6681599
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO782269A NO782269L (en) | 1977-08-11 | 1978-06-30 | CIRCLE SAW. |
Country Status (6)
Country | Link |
---|---|
AT (1) | AT353667B (en) |
DE (1) | DE7724960U1 (en) |
FR (1) | FR2399904A1 (en) |
NO (1) | NO782269L (en) |
SE (1) | SE7807246L (en) |
ZA (1) | ZA784128B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0039024A1 (en) * | 1980-04-25 | 1981-11-04 | BÜDIAM Diamantwerkzeuge W. u. R. Büttner GmbH | Saw blade, in particular with diamond-studded cutting segments |
FR2549769B1 (en) * | 1983-07-26 | 1987-08-07 | Durand Michel | DIAMOND PADS FOR A CIRCULAR SAW, PARTICULARLY FOR THE SIZING OF NATURAL STONES, AND A CIRCULAR SAW PROVIDED WITH SUCH PELLETS |
BE1008044A5 (en) * | 1994-02-17 | 1996-01-03 | Diamant Boart Sa | Segment diamond cutting concretion. |
DE19638718C1 (en) * | 1996-09-21 | 1997-10-16 | Betek Bergbau & Hartmetall | Saw blade for slot cutting device, used in road and floor surfaces of asphalt, concrete and like |
DE69807432T2 (en) * | 1998-02-27 | 2003-05-15 | Rousseau Luc | cutting segment |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE627583A (en) * | ||||
DE1502605A1 (en) * | 1964-03-18 | 1969-07-03 | Carborundum Co | Grinding wheel and process for its manufacture |
DD129535A1 (en) * | 1976-04-01 | 1978-01-25 | Horst Waschull | TRENNSCHLEIFKOERPER |
-
1977
- 1977-08-11 DE DE7724960U patent/DE7724960U1/en not_active Expired
-
1978
- 1978-06-26 AT AT464178A patent/AT353667B/en not_active IP Right Cessation
- 1978-06-27 SE SE7807246A patent/SE7807246L/en unknown
- 1978-06-30 NO NO782269A patent/NO782269L/en unknown
- 1978-07-11 FR FR7820608A patent/FR2399904A1/en not_active Withdrawn
- 1978-07-20 ZA ZA00784128A patent/ZA784128B/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR2399904A1 (en) | 1979-03-09 |
AT353667B (en) | 1979-11-26 |
SE7807246L (en) | 1979-02-12 |
ZA784128B (en) | 1979-07-25 |
ATA464178A (en) | 1979-04-15 |
DE7724960U1 (en) | 1977-11-24 |
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