CA1047894A - Apparatus for sawing stone - Google Patents
Apparatus for sawing stoneInfo
- Publication number
- CA1047894A CA1047894A CA283,939A CA283939A CA1047894A CA 1047894 A CA1047894 A CA 1047894A CA 283939 A CA283939 A CA 283939A CA 1047894 A CA1047894 A CA 1047894A
- Authority
- CA
- Canada
- Prior art keywords
- stone
- pair
- block
- brackets
- chain belt
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D57/00—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00
- B23D57/02—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00 with chain saws
- B23D57/026—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00 with chain saws with a plurality of saw chains
-
- 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
- B28D1/08—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with saw-blades of endless cutter-type, e.g. chain saws, i.e. saw chains, strap saws
- B28D1/082—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with saw-blades of endless cutter-type, e.g. chain saws, i.e. saw chains, strap saws consisting of chain saws
Abstract
ABSTRACT OF DISCLOSURE
Stone sawing apparatus suitable for severing a large rough block of hard stone such as granite efficiently into smaller blocks or slabs. One unit comprises an endless chain belt fixedly mounted therearound with a plurality of segments, each having diamond grits deposited on a metallic matrix, with a space between every adjacent two. A pair of sprocket wheels, at least one of which is driven by any suitable prime mover, are mounted for rotation respectively to the concerned bracket which is mounted for slidingly moving along each of the vertical posts. The apparatus can comprise a desired number of said unit parallelly arranged so that the stone block fed on the wheeled carriage is movable in the direction transverse to said chain saw running direction.
Stone sawing apparatus suitable for severing a large rough block of hard stone such as granite efficiently into smaller blocks or slabs. One unit comprises an endless chain belt fixedly mounted therearound with a plurality of segments, each having diamond grits deposited on a metallic matrix, with a space between every adjacent two. A pair of sprocket wheels, at least one of which is driven by any suitable prime mover, are mounted for rotation respectively to the concerned bracket which is mounted for slidingly moving along each of the vertical posts. The apparatus can comprise a desired number of said unit parallelly arranged so that the stone block fed on the wheeled carriage is movable in the direction transverse to said chain saw running direction.
Description
1 The present invention relates to an apparatus for sawing a stone block into a plurality of slabs or smaller blocks, and more particularly to such sawing apparatus of the chain saw type suitable for efficiently cutting the large block of hard stone.
Recently there has been sharply increased needs for slabs of stone such as marble, granite and the like to be used for flooring, walling and the likeO The rough blocks of stone excavated and cut at the quarry are generally transferred to the processing factory where said block is severed into a plurality of slabs which may be finished by grindingO Or said rough block is severed into a plurality of smaller blocks, and then such block is further severed into the slabs.
In order to efficiently sever such large rough block of hard stone, various apparatuses have been proposed and provided, among which there are fundamentally two sorts, one being reciprocally movable elongated blade type while the other is circular rotary blade type.
In said former type apparatus, the elongated cutter blade is reciprocally driven in the longitudinal direction with urging towards the cutting direction generally downwards for severing the stone block. In order to eliminate the ~-làrger cutting resistance, there has been proposed an improve-ment where the elongated blade is pivotally suspended at the opposite ends thereof by two arms, each arm being pivotally mounted at the other end thereof to the machine frame, so that when reciprocally and longitudinally driving the elongated blade by connecting one end of the crank arm to one end of said blade, the other end of said crank arm being pivotally unted on the pin eccentrically planted on the crank wheel, -the elongated blade may be reciprocated with slightly swinging, as shown in Japanese Patent Application Early Publication ~o. 125,988/1974 open on December 3, 1974. In order to - --efficiently sever the block into a plurality of slabs, a
Recently there has been sharply increased needs for slabs of stone such as marble, granite and the like to be used for flooring, walling and the likeO The rough blocks of stone excavated and cut at the quarry are generally transferred to the processing factory where said block is severed into a plurality of slabs which may be finished by grindingO Or said rough block is severed into a plurality of smaller blocks, and then such block is further severed into the slabs.
In order to efficiently sever such large rough block of hard stone, various apparatuses have been proposed and provided, among which there are fundamentally two sorts, one being reciprocally movable elongated blade type while the other is circular rotary blade type.
In said former type apparatus, the elongated cutter blade is reciprocally driven in the longitudinal direction with urging towards the cutting direction generally downwards for severing the stone block. In order to eliminate the ~-làrger cutting resistance, there has been proposed an improve-ment where the elongated blade is pivotally suspended at the opposite ends thereof by two arms, each arm being pivotally mounted at the other end thereof to the machine frame, so that when reciprocally and longitudinally driving the elongated blade by connecting one end of the crank arm to one end of said blade, the other end of said crank arm being pivotally unted on the pin eccentrically planted on the crank wheel, -the elongated blade may be reciprocated with slightly swinging, as shown in Japanese Patent Application Early Publication ~o. 125,988/1974 open on December 3, 1974. In order to - --efficiently sever the block into a plurality of slabs, a
- 2 -. ~;
l plurality of blades are parallelly arranged with a desired space b~tween every adjacent two and mounted on a frame to be driven as referred to above, which is so called the gang saw. In the past, sandy abrasive for instance carbon silicate such as Carborundum (trade name) was supplied together with water to the cutting portion, but recently synthetic diamond grits are deposited along the cutting edge of the elongated blade so that severing work can be carried out without using the sandy abrasive but with pouring water only. Such recipro-cally driven elongated blade, however, generally necessitates rather a long time for sawing the stone, above all hard stone such as granite, even if diamond grits are used, as well known to those skilled in the art.
In said latter type apparatus, the circular cutter blade having a peripheral matrix embedded with particles of any hard material such as synthetic diamond is rotatingly driven for severing the stone block. The sawing apparatus for this type is of higher cutting rate in comparson with said reciprocally driven elongated blade apparatus. The rotary ;
sawing disk may be urgingly moved relative to the stone block fixed still, or conversely the stone block may be urgingly moved relative to the disk rotatingly mounted to the machine frame. In order to efficiently sever the stone block into slabs or smaller blocks, such sawing apparatus has been proposed as having a pair of disk blades arranged side by side in a common cutting plane so as to cut the stone block concurrently from the opposite sides thereof, as shown in Japanese Patent Application Early Publication NoO127,291/1974 open on December 5, 19740 The rotary circular diamond saw, however, is unsatisfactory in that when the disk diameter is increased for cutting the larger stone block the blade thickness must be thickened for preventing eventual breakage.
The cost of such blade goes faster than the diameter of the blade, as well ~nown to those skilled in the art. Furthermore there i9 naturally a limitation of the cutting depth due to that the shaft for driving the disk must be mounted at the
l plurality of blades are parallelly arranged with a desired space b~tween every adjacent two and mounted on a frame to be driven as referred to above, which is so called the gang saw. In the past, sandy abrasive for instance carbon silicate such as Carborundum (trade name) was supplied together with water to the cutting portion, but recently synthetic diamond grits are deposited along the cutting edge of the elongated blade so that severing work can be carried out without using the sandy abrasive but with pouring water only. Such recipro-cally driven elongated blade, however, generally necessitates rather a long time for sawing the stone, above all hard stone such as granite, even if diamond grits are used, as well known to those skilled in the art.
In said latter type apparatus, the circular cutter blade having a peripheral matrix embedded with particles of any hard material such as synthetic diamond is rotatingly driven for severing the stone block. The sawing apparatus for this type is of higher cutting rate in comparson with said reciprocally driven elongated blade apparatus. The rotary ;
sawing disk may be urgingly moved relative to the stone block fixed still, or conversely the stone block may be urgingly moved relative to the disk rotatingly mounted to the machine frame. In order to efficiently sever the stone block into slabs or smaller blocks, such sawing apparatus has been proposed as having a pair of disk blades arranged side by side in a common cutting plane so as to cut the stone block concurrently from the opposite sides thereof, as shown in Japanese Patent Application Early Publication NoO127,291/1974 open on December 5, 19740 The rotary circular diamond saw, however, is unsatisfactory in that when the disk diameter is increased for cutting the larger stone block the blade thickness must be thickened for preventing eventual breakage.
The cost of such blade goes faster than the diameter of the blade, as well ~nown to those skilled in the art. Furthermore there i9 naturally a limitation of the cutting depth due to that the shaft for driving the disk must be mounted at the
- 3 -center thereof. Consequently the relatively large stone block can not be processed by means of this type saw.
Thus the principal object of the present invention is to ;~
provide the stone sawing apparatus capable of severing the large block of the hard stone efficiently into a plurality of slabs or smaller blocks.
Said object and other objects as well as advantages attai~ed by the invention which will be readily appreciated by studying the following explanation, can be attained fundamenta-lly by providing an endless chain belt around which metallic matrix segments on which diamond grits are depositted are fixedly mounted, which chain belt being extended between and over a driving sprocket wheel and an idle wheel so that the running lower chain belt portion may sever the stone block laid therebeneath~ Said driving sprocket wheel and said id~e wheel are respectively mounted on the concerned bracket fo~
rotation, each bracket being mounted on a vertical post for s~idingly movable therealong.
The invention shall be explained in more detail in reference to the accompanying drawing; in which Fig. 1 is a schematic front elevation of the apparatus of the invention, and ~ .
Fig. 2 is a schematic perspective viewO
In the first place it should be noted that said drawings have been considerably schematically made for the sake of clarificationO The stone sawing apparatus has a machine frame represented generally by 10 which comprises a plurality of transversely extending lower beams 11 and a pair of longitudinally extending lower beams 11' so as to form the base frame work on the floor. Along each of said longitudinal floor beams 11' there is provided a rail 11" so that a wheeled carriage 15 loaded with a stone ~lock 30 may
Thus the principal object of the present invention is to ;~
provide the stone sawing apparatus capable of severing the large block of the hard stone efficiently into a plurality of slabs or smaller blocks.
Said object and other objects as well as advantages attai~ed by the invention which will be readily appreciated by studying the following explanation, can be attained fundamenta-lly by providing an endless chain belt around which metallic matrix segments on which diamond grits are depositted are fixedly mounted, which chain belt being extended between and over a driving sprocket wheel and an idle wheel so that the running lower chain belt portion may sever the stone block laid therebeneath~ Said driving sprocket wheel and said id~e wheel are respectively mounted on the concerned bracket fo~
rotation, each bracket being mounted on a vertical post for s~idingly movable therealong.
The invention shall be explained in more detail in reference to the accompanying drawing; in which Fig. 1 is a schematic front elevation of the apparatus of the invention, and ~ .
Fig. 2 is a schematic perspective viewO
In the first place it should be noted that said drawings have been considerably schematically made for the sake of clarificationO The stone sawing apparatus has a machine frame represented generally by 10 which comprises a plurality of transversely extending lower beams 11 and a pair of longitudinally extending lower beams 11' so as to form the base frame work on the floor. Along each of said longitudinal floor beams 11' there is provided a rail 11" so that a wheeled carriage 15 loaded with a stone ~lock 30 may
- 4 -... . ..
run along a pair of said rails 11". A pair of vertical posts 12, 12' are installed so that the lower ends thereof are fixed respectively to the upper surface of said transverse lower beam 11 and a diamond chain represented generally by 20 is extendingly mounted for running between said two vertical posts 12, 12', of which upper ends are fixedly mounted with a transversely extending upper beam 13. In the illustrated example only two chain saws are shown, but actually ten chain saws and consequently ten fr~me works as referred to above were provided so as to sever the block of 1.5 m. height x 2 m.
width x 4 m. length of franite from Paochon,Korea into eleven smaller stone blocks. Since the two outer blocks cannot be the product, the nine blocks, each of about 40 cm.
thickness, were obtained~
The chain saw 20 comprises an endless chain belt 21 extended between and around a pair of chain sprocket whe~ls 22, 22' the former of which is mounted on a bracket 23 for rotation while the latter is mounted on a brarket 23' also for rotationO Said brackets 23, 23' are mounted respectively on said vertical posts 12, 12' to be each vertically slidingly movable along each of said posts. On said bracket 23, there is mounted an electric motor 24 of 100 hp. in the embodiment so as to drive the sprocket wheel 22 and consequently the endless chain belt 21 in the running rate of 500 m/min. in the embodiment. The sprocket wheel 22~ is of idle wheel~ The distance between the two axes was made to be 205 mO in the embodiment.
The chanin belt 20 can be of any construction9 but the usual link chain was used in the embodiment which comprises a plurality of link plates in pair so that each two adjacent pairs are linked by means of a pin. Along the outer surface of said endless chain belt, there are fixedly mounted a plurality of segments 25, each being of 12 mm. width and 10 mmO length although such dimensions may be varied depending on the dimensions of the chain elements. Said segment can be prepared by using synthetic diamond grits to
run along a pair of said rails 11". A pair of vertical posts 12, 12' are installed so that the lower ends thereof are fixed respectively to the upper surface of said transverse lower beam 11 and a diamond chain represented generally by 20 is extendingly mounted for running between said two vertical posts 12, 12', of which upper ends are fixedly mounted with a transversely extending upper beam 13. In the illustrated example only two chain saws are shown, but actually ten chain saws and consequently ten fr~me works as referred to above were provided so as to sever the block of 1.5 m. height x 2 m.
width x 4 m. length of franite from Paochon,Korea into eleven smaller stone blocks. Since the two outer blocks cannot be the product, the nine blocks, each of about 40 cm.
thickness, were obtained~
The chain saw 20 comprises an endless chain belt 21 extended between and around a pair of chain sprocket whe~ls 22, 22' the former of which is mounted on a bracket 23 for rotation while the latter is mounted on a brarket 23' also for rotationO Said brackets 23, 23' are mounted respectively on said vertical posts 12, 12' to be each vertically slidingly movable along each of said posts. On said bracket 23, there is mounted an electric motor 24 of 100 hp. in the embodiment so as to drive the sprocket wheel 22 and consequently the endless chain belt 21 in the running rate of 500 m/min. in the embodiment. The sprocket wheel 22~ is of idle wheel~ The distance between the two axes was made to be 205 mO in the embodiment.
The chanin belt 20 can be of any construction9 but the usual link chain was used in the embodiment which comprises a plurality of link plates in pair so that each two adjacent pairs are linked by means of a pin. Along the outer surface of said endless chain belt, there are fixedly mounted a plurality of segments 25, each being of 12 mm. width and 10 mmO length although such dimensions may be varied depending on the dimensions of the chain elements. Said segment can be prepared by using synthetic diamond grits to
- 5 -, - - , ,'~
lOg7894 L be metal-bonded by any suitable method well known to those skilled in the art of diamond grit tools, for instance by the so-called pressure sintering method known in the powder metallurgy field. Each segment can be fixed to a length of the pair of link plates for instance by solderingO In the embodiment the diamond segments of each 10 mm length were mounted by every 40 mmO space between the two adjacent segmentsO
In order to guide the chain belt 21 for stable running, there is preferably provided a guide plate 26 as well known in the chain saw for cutting the treesO In the embodiment, nine granite blocks of 105 m. x 2 m. x 40 cm. could be obtained from said large stone block in an hourO
....
'~ ' ' ,'' .................... .
lOg7894 L be metal-bonded by any suitable method well known to those skilled in the art of diamond grit tools, for instance by the so-called pressure sintering method known in the powder metallurgy field. Each segment can be fixed to a length of the pair of link plates for instance by solderingO In the embodiment the diamond segments of each 10 mm length were mounted by every 40 mmO space between the two adjacent segmentsO
In order to guide the chain belt 21 for stable running, there is preferably provided a guide plate 26 as well known in the chain saw for cutting the treesO In the embodiment, nine granite blocks of 105 m. x 2 m. x 40 cm. could be obtained from said large stone block in an hourO
....
'~ ' ' ,'' .................... .
Claims (2)
EXCLUSIVE PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED
AS FOLLOWS:
1. Stone sawing apparatus unit comprising a machine frame work having a pair of vertical posts, each one bracket mounted to each of said vertical posts to be slidingly movable therealong, a pair of sprocket wheels each mounted to each of said brackets for rotation, an endless chain belt extended between and around said two sprocket wheels and mounted with a plurality of diamond grit segments with a space between every adjacent two around the outer surface thereof, a prime mover mounted to one of said brackets to drive one of said wheels to be rotated and consequently to drive said endless chain belt, a wheeled carriage for transferring the stone block to be severed in the direction transverse to the chain saw running direction, and another prime mover for raising and forcingly lowering said brackets along each of said posts.
2. Stone sawing apparatus as claimed in Claim 1, which comprises a desired number of said chain saw unit arranged parallelly and with leaving a desired space between every adjacent two units.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9031676A JPS5316985A (en) | 1976-07-30 | 1976-07-30 | Cutting device for biggsized stone material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1047894A true CA1047894A (en) | 1979-02-06 |
Family
ID=13995114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA283,939A Expired CA1047894A (en) | 1976-07-30 | 1977-08-02 | Apparatus for sawing stone |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS5316985A (en) |
| BR (1) | BR7705045A (en) |
| CA (1) | CA1047894A (en) |
| DE (1) | DE2734532A1 (en) |
| IN (1) | IN148291B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11566687B2 (en) | 2017-09-16 | 2023-01-31 | Genesis Advanced Technology Inc. | Differential planetary gearbox |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3823784A1 (en) * | 1988-07-14 | 1990-01-25 | Hochtief Ag Hoch Tiefbauten | Method, sealing elements and apparatus for constructing a diaphragm wall |
| JPH0359808U (en) * | 1989-10-12 | 1991-06-12 | ||
| US5243960A (en) * | 1991-12-31 | 1993-09-14 | Stone Panels, Inc. | Apparatus for cutting stone laminate panels |
| DE10042858B4 (en) * | 2000-08-30 | 2005-04-28 | Dieter Gerlach | Arrangement for sawing slabs of stone-like building materials |
| DE102011005019A1 (en) | 2011-03-03 | 2012-09-06 | Robert Bosch Gmbh | Machine tool system |
| CN104015219B (en) * | 2014-06-17 | 2016-06-22 | 平湖市良机机械有限公司 | A kind of paper tube cutting machine |
| CN104669447A (en) * | 2015-03-16 | 2015-06-03 | 吴建 | Combined cutting machine with multiple chain saws |
| CN104669446A (en) * | 2015-03-16 | 2015-06-03 | 吴建 | Single-blade chain saw cutter for stones |
| DE102016000134A1 (en) * | 2016-01-11 | 2017-07-13 | Carbon Rotec Gmbh & Co. Kg | Device for trimming, in particular edges on wind rotor blade parts |
-
1976
- 1976-07-30 JP JP9031676A patent/JPS5316985A/en active Pending
-
1977
- 1977-07-27 IN IN1154/CAL/77A patent/IN148291B/en unknown
- 1977-07-30 DE DE19772734532 patent/DE2734532A1/en active Pending
- 1977-08-01 BR BR7705045A patent/BR7705045A/en unknown
- 1977-08-02 CA CA283,939A patent/CA1047894A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11566687B2 (en) | 2017-09-16 | 2023-01-31 | Genesis Advanced Technology Inc. | Differential planetary gearbox |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5316985A (en) | 1978-02-16 |
| DE2734532A1 (en) | 1978-02-09 |
| BR7705045A (en) | 1978-05-02 |
| IN148291B (en) | 1981-01-10 |
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