CA1260822A - Device for the automatic and continuous correction of the centres of oscillation in a pendulant frame for the cutting of marbles, granites and hard stones - Google Patents
Device for the automatic and continuous correction of the centres of oscillation in a pendulant frame for the cutting of marbles, granites and hard stonesInfo
- Publication number
- CA1260822A CA1260822A CA000491852A CA491852A CA1260822A CA 1260822 A CA1260822 A CA 1260822A CA 000491852 A CA000491852 A CA 000491852A CA 491852 A CA491852 A CA 491852A CA 1260822 A CA1260822 A CA 1260822A
- Authority
- CA
- Canada
- Prior art keywords
- blade carrier
- oscillation
- connecting member
- centres
- pendulant
- 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
- 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
- B28D1/06—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with reciprocating saw-blades
- B28D1/068—Components, e.g. guiding means, vibrations damping means, frames, driving means, suspension
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Sawing (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
ABSTRACT
In a pendulant frame with multiple blades for marbles, granites and hard stones, it is provided that the centres of rotation (1 and 2) of the connecting rods (3 and 4), which support the blade carrier (5) of the saw, are moved during the cutting operation jointly by the eccentric discs (6 and 7), for the purpose of compensating, in the various operating positions, the displacement of the base (8) of the connecting member (9) which together with the flywheel (10) controls the alternating movement of the blade carrier (5), so as to permit a perfect symmetry of the pendulant motion of the same with respect to the vertical axis (Figure 1).
rn/
In a pendulant frame with multiple blades for marbles, granites and hard stones, it is provided that the centres of rotation (1 and 2) of the connecting rods (3 and 4), which support the blade carrier (5) of the saw, are moved during the cutting operation jointly by the eccentric discs (6 and 7), for the purpose of compensating, in the various operating positions, the displacement of the base (8) of the connecting member (9) which together with the flywheel (10) controls the alternating movement of the blade carrier (5), so as to permit a perfect symmetry of the pendulant motion of the same with respect to the vertical axis (Figure 1).
rn/
Description
~260822 DESCRIPTION
The device oE the invention has for its object to correct continuously and automatically the position of the centres of oscillation of the connecting rods having a pen-dulant motion which support the blade carrier of a frame for sawing marbles, granites and hard stones.
It is known that in pendulant frames for marbles, granites and hard stones, it is necessary to compensate during the cutting operation the displacement of the base of the con-necting rods, which has a continuous variation o~ the position of the centre of oscillation of the rods supporting the blade carrier, with respect to the vertical axis, passing through the centre of oscillation of the said rods.
This is currently obtained, in all pendulant frames for the cutting of granites and hard stones, by operation by hand of a screw which permits adjustment of the length of the connec-ting rod, which controls the pendulant movement of the blade carrier, which operation is carried out by the person-nel, in an irregular manner, stopping the machine, with a consicierable effect of discontinuity and with a not incon-siderable loss of the working time of the machine.
With the adoption of the eccent:ric device of theinvention instead, it is possible to carry out an automatic and continuous compensation of the posit:ion of the base of the connecting rod during the cutting operation, without causing stopping times Iduring the operation of the machine.
SpeciEically, the present invention provides a device for the automatic and continuous correction of the : B ~.~
` -;
:. , `~ .
, ; , ~
:~26082;~
centres of oscillation in a pendulant Erame for the cutting of marbles, granites and hard stones which comprises a flywheel and a connecting member attached thereto. The base oE the connecting member is attached to a blade carrier. This device also comprises two rotating discs which carry, in eccentric positions, pivots which also support the blade carrier by means of connecting rods. The device is thereby provided with a continuous rotary motion which is controlled automatically in relation to the degree of descent of the blade carrier during the working oE the device for the purpose of compensat-ing automaticcllly for the different positions that the base of the connecting member assumes gradually when the connecting member is displaced downwardly. This ensures that in all positions of operation thereof, a perfect symmetry oE the centre of oscillation of the supporting connecting rods of the blade carrier occurs.
The invention will be hereinafter described in greater detail with the aid of the accompanying set of drawings, wherein:
Figure 1 (sheet 1) shows, in schematic side view, the whole of the machine with the eccentric device of the invention Figure 2 (sheet 2) shows, likewise in side view, the details relating to the control of the device;
Figure 3 shows, in partial front view, the said eccentric contrc~l device Figure 4 (sheet 3) shows the geometric layout relat-.~
.
~L260~;~2 ing to the operation of the device.
The device of the invention provides that the pivots 1 and 2 (Figure 1), on which are pivoted the connecting rods 3 and 4 which support the blade carrier 5 for the cutting of marble, granite and hard stone, are supported by eccentric discs 6 and 7 which are caused to rotate regularly during the descent of the blade carrier 5, during the process oE carrying out of the cut in such a manner as to compensate continuously for the variations o~ position oE the base oE the connecting member 8 gradually as the connecting member 9, placed in motion by the rotation of the flywheel 10, moves downwardly.
In particular in Figure 2 it will be seen that the control of the movement of rotation of one oE the discs 7, on which is eccentrically mounted the pivot 2 on which oscillates the connecting rod 4 which supports the blade carrier 5, is slidable along the vertical column 11 oE the device, permit-ting l:he toothed wheel 12, which meshes with the rack 13, to rotate putting into rotation, by means of the reducer 14, with endless screw and helicoidal wheel, the disc 7 on which the pivot 2 is eccentrically pivoted.
In Figure 3 it will be seen that the connecting rod 4 is made in the shape of a portal to permit the supporting of the two opposed sides of the blade carrier 5.
In the diagram of Figure 4 it will be seen that the eccentric discs 6 and 7, which carry the connecting rods 3 and 4, rotate in such a manner as to carry the pivot points 1 and
The device oE the invention has for its object to correct continuously and automatically the position of the centres of oscillation of the connecting rods having a pen-dulant motion which support the blade carrier of a frame for sawing marbles, granites and hard stones.
It is known that in pendulant frames for marbles, granites and hard stones, it is necessary to compensate during the cutting operation the displacement of the base of the con-necting rods, which has a continuous variation o~ the position of the centre of oscillation of the rods supporting the blade carrier, with respect to the vertical axis, passing through the centre of oscillation of the said rods.
This is currently obtained, in all pendulant frames for the cutting of granites and hard stones, by operation by hand of a screw which permits adjustment of the length of the connec-ting rod, which controls the pendulant movement of the blade carrier, which operation is carried out by the person-nel, in an irregular manner, stopping the machine, with a consicierable effect of discontinuity and with a not incon-siderable loss of the working time of the machine.
With the adoption of the eccent:ric device of theinvention instead, it is possible to carry out an automatic and continuous compensation of the posit:ion of the base of the connecting rod during the cutting operation, without causing stopping times Iduring the operation of the machine.
SpeciEically, the present invention provides a device for the automatic and continuous correction of the : B ~.~
` -;
:. , `~ .
, ; , ~
:~26082;~
centres of oscillation in a pendulant Erame for the cutting of marbles, granites and hard stones which comprises a flywheel and a connecting member attached thereto. The base oE the connecting member is attached to a blade carrier. This device also comprises two rotating discs which carry, in eccentric positions, pivots which also support the blade carrier by means of connecting rods. The device is thereby provided with a continuous rotary motion which is controlled automatically in relation to the degree of descent of the blade carrier during the working oE the device for the purpose of compensat-ing automaticcllly for the different positions that the base of the connecting member assumes gradually when the connecting member is displaced downwardly. This ensures that in all positions of operation thereof, a perfect symmetry oE the centre of oscillation of the supporting connecting rods of the blade carrier occurs.
The invention will be hereinafter described in greater detail with the aid of the accompanying set of drawings, wherein:
Figure 1 (sheet 1) shows, in schematic side view, the whole of the machine with the eccentric device of the invention Figure 2 (sheet 2) shows, likewise in side view, the details relating to the control of the device;
Figure 3 shows, in partial front view, the said eccentric contrc~l device Figure 4 (sheet 3) shows the geometric layout relat-.~
.
~L260~;~2 ing to the operation of the device.
The device of the invention provides that the pivots 1 and 2 (Figure 1), on which are pivoted the connecting rods 3 and 4 which support the blade carrier 5 for the cutting of marble, granite and hard stone, are supported by eccentric discs 6 and 7 which are caused to rotate regularly during the descent of the blade carrier 5, during the process oE carrying out of the cut in such a manner as to compensate continuously for the variations o~ position oE the base oE the connecting member 8 gradually as the connecting member 9, placed in motion by the rotation of the flywheel 10, moves downwardly.
In particular in Figure 2 it will be seen that the control of the movement of rotation of one oE the discs 7, on which is eccentrically mounted the pivot 2 on which oscillates the connecting rod 4 which supports the blade carrier 5, is slidable along the vertical column 11 oE the device, permit-ting l:he toothed wheel 12, which meshes with the rack 13, to rotate putting into rotation, by means of the reducer 14, with endless screw and helicoidal wheel, the disc 7 on which the pivot 2 is eccentrically pivoted.
In Figure 3 it will be seen that the connecting rod 4 is made in the shape of a portal to permit the supporting of the two opposed sides of the blade carrier 5.
In the diagram of Figure 4 it will be seen that the eccentric discs 6 and 7, which carry the connecting rods 3 and 4, rotate in such a manner as to carry the pivot points 1 and
2 on the opposite side of said eccentrics, when the blade B
. . .
.... ;,.
~2~;V~12%
carrier ascends until reaching a position aligned with the axis of the flywheel 10, and turn to move them into the opposite positions 1" and 2" when the blade carrier descends below said line of symmetry during the cutting operation.
It will be seen from the diagram of Figure 4 that the oscillating movements of the connecting rods 3 and 4 remain in such always symmetrical positions with respect to the vertical axes passing through the pivots 1 and 2, giving rise in all of the working positions to an optimal operation of the cutting blade.
The compensation of such positions is automatic and continuous and does not require any intervention on the part of the operators.
The utilisation of the blade is optimised, with con-siderat)le reduction of the working times.
It is also possible to make use of shorter connect-ing rods, with consequent reduction oE the encumbrance in the dimensions of the frame.
Obviously the constructional features of details of the device now described and illustrated in the accompanying set of drawings could be varied, according to the particular exigencies of the machine, whilst maintaining the essential characteristics of the invention, without thereby exceeding the scope of the patent.
-~E
. . .
.... ;,.
~2~;V~12%
carrier ascends until reaching a position aligned with the axis of the flywheel 10, and turn to move them into the opposite positions 1" and 2" when the blade carrier descends below said line of symmetry during the cutting operation.
It will be seen from the diagram of Figure 4 that the oscillating movements of the connecting rods 3 and 4 remain in such always symmetrical positions with respect to the vertical axes passing through the pivots 1 and 2, giving rise in all of the working positions to an optimal operation of the cutting blade.
The compensation of such positions is automatic and continuous and does not require any intervention on the part of the operators.
The utilisation of the blade is optimised, with con-siderat)le reduction of the working times.
It is also possible to make use of shorter connect-ing rods, with consequent reduction oE the encumbrance in the dimensions of the frame.
Obviously the constructional features of details of the device now described and illustrated in the accompanying set of drawings could be varied, according to the particular exigencies of the machine, whilst maintaining the essential characteristics of the invention, without thereby exceeding the scope of the patent.
-~E
Claims (2)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A device for the automatic and continuous correction of the centres of oscillation in a pendulant frame for the cutting of marble, granite and hard stone, said device comprising a flywheel; a connecting member attached thereto, said connecting member having a base which is attached to a blade carrier; two rotating discs carrying in eccentric positions pivots which also support said blade carrier by means of connecting rods and means for providing said device with a continuous rotary motion controlled automatically in relation to the degree of descent of said blade carrier during the working of the device for the purpose of compensating automatically for the different positions that the base of said connecting member assumes gradually when said connecting member is displaced downwardly, thereby ensuring in all positions of operation thereof a perfect symmetry of the centre of oscillation of the supporting connecting rods of said blade carrier.
2. The device as in claim 1 further comprising means for rotating said discs, including a toothed wheel which meshes with a rack disposed on a vertical column of said device, said toothed wheel being coupled to each disc by means of a coupling with an endless screw and helicoidal wheel, thereby rendering the displacement of the centres of oscillation of said movable connecting rods automatic during the descent of said blade carrier.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT85.642/A/84 | 1984-10-04 | ||
| IT85642/84A IT1181576B (en) | 1984-10-04 | 1984-10-04 | DEVICE FOR AUTOMATIC AND CONTINUOUS CORRECTION OF OSCILLATION CENTERS IN A PENDULAR FRAME FOR CUTTING MARBLE, GRANITE AND HARD STONES |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1260822A true CA1260822A (en) | 1989-09-26 |
Family
ID=11329456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000491852A Expired CA1260822A (en) | 1984-10-04 | 1985-09-30 | Device for the automatic and continuous correction of the centres of oscillation in a pendulant frame for the cutting of marbles, granites and hard stones |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0197978A1 (en) |
| CN (1) | CN1006872B (en) |
| AU (1) | AU4957885A (en) |
| CA (1) | CA1260822A (en) |
| ES (1) | ES289382Y (en) |
| GR (1) | GR852388B (en) |
| IT (1) | IT1181576B (en) |
| PT (1) | PT81249B (en) |
| WO (1) | WO1986002033A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0412958A3 (en) * | 1989-08-09 | 1991-08-21 | Comtec Bitter Gesellschaft M.B.H. | Drive mechanism for a saw frame |
| CN1974166B (en) * | 2006-12-12 | 2010-08-18 | 山东华兴机械股份有限公司 | Stone material processing method and stone material saw |
| CN106626086A (en) * | 2017-02-07 | 2017-05-10 | 泉州市三联机械制造有限公司 | Thermal insulation concrete block cutting mechanism |
| CN108858805A (en) * | 2018-07-02 | 2018-11-23 | 中国振华电子集团建新机电有限公司 | A kind of saw frame swings the stone material sawing method and its device of revolution |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB342927A (en) * | 1930-03-04 | 1931-02-12 | Anderson Grice Company Ltd | Improvements in stone-working machines |
| GB582314A (en) * | 1944-09-20 | 1946-11-12 | Bramley Engineering Company Lt | Improvements in or relating to machines for cutting stone and like materials |
-
1984
- 1984-10-04 IT IT85642/84A patent/IT1181576B/en active
-
1985
- 1985-09-28 CN CN85107275.5A patent/CN1006872B/en not_active Expired
- 1985-09-30 CA CA000491852A patent/CA1260822A/en not_active Expired
- 1985-10-01 EP EP85904850A patent/EP0197978A1/en not_active Withdrawn
- 1985-10-01 WO PCT/IT1985/000036 patent/WO1986002033A1/en unknown
- 1985-10-01 AU AU49578/85A patent/AU4957885A/en not_active Abandoned
- 1985-10-02 GR GR852388A patent/GR852388B/el unknown
- 1985-10-03 PT PT81249A patent/PT81249B/en not_active IP Right Cessation
- 1985-10-03 ES ES1985289382U patent/ES289382Y/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IT1181576B (en) | 1987-09-30 |
| PT81249A (en) | 1985-11-01 |
| CN85107275A (en) | 1986-04-10 |
| EP0197978A1 (en) | 1986-10-22 |
| AU4957885A (en) | 1986-04-17 |
| GR852388B (en) | 1986-02-04 |
| IT8485642A0 (en) | 1984-10-04 |
| CN1006872B (en) | 1990-02-21 |
| ES289382U (en) | 1986-03-01 |
| WO1986002033A1 (en) | 1986-04-10 |
| PT81249B (en) | 1987-08-19 |
| ES289382Y (en) | 1986-10-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |