EP1205285A1 - Panel saw - Google Patents
Panel saw Download PDFInfo
- Publication number
- EP1205285A1 EP1205285A1 EP00124237A EP00124237A EP1205285A1 EP 1205285 A1 EP1205285 A1 EP 1205285A1 EP 00124237 A EP00124237 A EP 00124237A EP 00124237 A EP00124237 A EP 00124237A EP 1205285 A1 EP1205285 A1 EP 1205285A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bar
- frame
- locator
- angle
- cutting
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
- B27B5/16—Saw benches
- B27B5/22—Saw benches with non-feedable circular saw blade
- B27B5/222—Saw benches with non-feedable circular saw blade the saw blade being arranged underneath the work-table; Guiding arrangements for the work-table
Definitions
- the present invention relates to a squaring machine, particularly for cutting panels.
- Machines in which the management of the locator abutments for positioning the panel to be cut is controlled by automation means assisted by a numeric control system are currently proposed for squared cuts.
- Current squaring machines are constituted by a sliding frame which is supported by a telescopic arm pivoted at one end.
- a linear reference preferably an aluminum bar, is provided on the frame and is set so as to be perfectly perpendicular to the cutting line formed by the cutting blade.
- By arranging the panel to be cut on the supporting surface of the linear reference one is certain of obtaining a cut which is at right angles thereto, as demanded by manufacturing requirements.
- a sliding locator and a ruler with millimeter graduations are inserted on the linear reference, and the ruler is used as a reference for the cutting measurement.
- the linear reference is rotated with respect to the cutting line, moving it manually from its perpendicular position.
- This rotation is controlled by a fulcrum about which the aluminum bar rotates with a protractor which is applied to the sliding plane and on which the bar is positioned for the preset cutting angle.
- One method that overcomes the above-mentioned problem related to the reduction of the supporting surface consists of a bar which is rigidly coupled to the sliding surface and undergoes a rhomboidal deformation, so as to keep the supporting surface constant.
- the aim of the present invention is to eliminate the above-noted drawbacks, by providing a squaring machine which is simple in practical use for the ordinary user.
- a particular object of the present invention is to provide a machine which is highly flexible and rapid so as to meet the requirements and the demands for higher productivity.
- Another object of the present invention is to provide a machine which is simple, relatively easy to provide in practice, safe in use, effective in operation, and relatively modest in cost.
- a squaring machine particularly for cutting panels, constituted by a frame which is articulated like a parallelogram and can slide on a horizontal flat carriage along a path which is parallel to the cutting line, said frame comprising, on a first stringer, a bar on which at least one locator for the positioning of said panel is slidingly provided, characterized in that it comprises positioning means, supported by said bar, which are adapted to adjust said locator along said bar, and angle variation means, provided on said frame, which are adapted for the adjustment, about a fulcrum, of said bar with respect to said cutting line, said means being electronically controllable and being mutually correlated so as to determine the movement of said locator in relation to said angle of said bar.
- the reference numeral 1 generally designates a squaring machine, particularly for cutting panels.
- the machine 1 comprises a footing 2 which supports, on a top 2a, a slide 2b, on which a flat carriage 3 slides which is substantially rectangular and is elongated in the direction in which it slides.
- a platform 4 which is supported by supports 5 which protrude from the footing 2.
- the platform 4 forms, on the edge 4b that lies at the front of the flat carriage 3, a slit 4a in which a cutting blade 6 is accommodated, said blade forming a cutting line 6a which is parallel to the edge 4b.
- the blade 6, as shown in Figures 2 and 3, is rotationally rigidly coupled to a horizontal secondary shaft 7a which is associated with a motor 7.
- the footing 2 rotatably supports, at a lateral lower end 2c, a telescopic arm 8 which is adapted to support a frame 9 which is articulated like a parallelogram and is coplanar to the flat carriage 3.
- the frame 9 comprises two cross-members 9a and 9b which are mutually parallel and are articulated to two stringers 9c and 9d which are also mutually parallel.
- the first cross-member 9a is rotatably connected, in the central region, to the upper end 10a of a rod 10 which is vertical and vertically adjustable and is rotatably connected, by means of its lower end 10b, to the tip 8a of the telescopic arm 8, so as to allow horizontal support of the first cross-member 9a.
- two protrusions 12a and 12b protrude from the ends of the first cross-member 9a and rotatably support, as shown in Figures 2 and 3, a roller 12 which assists the sliding of the panels to be cut.
- the second cross-member 9b has, on the face directed toward the flat carriage 3, a sliding block 11a which can slide along a guide 11 which is associated with the other long side of the flat carriage 3.
- the first stringer 9c and the second stringer 9d are rotatably connected to the ends of the first and second cross-members 9a, 9b and are rotatably connected, in their central region, to an element 9f which acts both as a support for the panels to be cut and as a reinforcement for the frame 9.
- the first stringer 9c supports, at the tip 9g, a retention element 9h for the panels and supports, at the remaining portion, a bar 13 which is rigidly coupled thereto and internally forms a longitudinal cavity 14, as shown in Figure 6.
- the machine comprises positioning means, arranged inside the cavity 14, and the means for varying the angle of the bar 13, which are associated with the central region of the frame 9.
- the positioning means are constituted by a belt 15 which runs along the entire length of the cavity 14 so as to wrap around two pulleys 16 and 17; one of said pulleys, for example the pulley 16, is actuated by an actuator 18 which is connected thereto by means of the shaft 19.
- a locator 20 is fixed on the belt 15 and is adapted to position the panel by means of an electronic management of the actuator 18.
- the means for varying the angle of the bar 13, as shown in Figures 4 and 5, are constituted by a toothed sector 21 which is fixed on the second stringer 9d.
- the toothed sector 21 meshes with a pinion 22 which is keyed on the shaft 23 of a motor 24 which is fixed onto the element 9f.
- the motor 24 is controlled electronically and is correlated to the actuator 18 so that predefined angular variations applied to the bar 13 are matched, according to trigonometric relations, by specific linear movements of the locator 20.
- the wood panel is rested on the articulated frame 9 and placed against the bar 13, which forms a linear reference which is perpendicular to the cutting line.
- the positioning of the panel is completed by locking it with the locator 20 and the retention element 9g.
- the positioning of the panel is adjusted in a linear fashion by the locator 20 according to a predefined dimension, which is set on a computer and transmits to the actuator 18 the movements to be imparted to the positioning means.
- a predefined dimension which is set on a computer and transmits to the actuator 18 the movements to be imparted to the positioning means.
- the cutting angle is set on the computer.
- the computer transmits the processed information to the motor and to the actuator, so that a rotation of the bar 13, imparted by the motor, is automatically matched by a movement of the locator, imparted by the actuator, which leaves unchanged the distance of the locator from the cutting line.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Sawing (AREA)
- Milling, Drilling, And Turning Of Wood (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Glass Compositions (AREA)
- Gas-Filled Discharge Tubes (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Abstract
Description
- The present invention relates to a squaring machine, particularly for cutting panels.
- It is known that a wide range of squaring machines for cutting wood or wood-like panels, meant to obtain semifinished components for manufacturing furniture, is commercially available. These machines provide cuts of the mutually perpendicular type (such as for example cuts required to obtain components of a wardrobe) or angled cuts (such as for example particular cuts for obtaining components for kitchens or particular furniture).
- Machines in which the management of the locator abutments for positioning the panel to be cut is controlled by automation means assisted by a numeric control system are currently proposed for squared cuts.
- Up to now, the need for angled cuts to be performed with a squaring machine had been scarcely felt, but the need to propose increasingly personalized and differentiated furniture has promoted this prerogative so that the machine could become widespread among users.
- Current squaring machines are constituted by a sliding frame which is supported by a telescopic arm pivoted at one end. A linear reference, preferably an aluminum bar, is provided on the frame and is set so as to be perfectly perpendicular to the cutting line formed by the cutting blade. By arranging the panel to be cut on the supporting surface of the linear reference, one is certain of obtaining a cut which is at right angles thereto, as demanded by manufacturing requirements. Moreover, a sliding locator and a ruler with millimeter graduations are inserted on the linear reference, and the ruler is used as a reference for the cutting measurement.
- At present, for oblique cuts, even for large panels, the linear reference is rotated with respect to the cutting line, moving it manually from its perpendicular position. This rotation is controlled by a fulcrum about which the aluminum bar rotates with a protractor which is applied to the sliding plane and on which the bar is positioned for the preset cutting angle. Although this technique is simple to perform, it has the drawback that at large angles the surface for resting on the sliding surface is reduced.
- One method that overcomes the above-mentioned problem related to the reduction of the supporting surface consists of a bar which is rigidly coupled to the sliding surface and undergoes a rhomboidal deformation, so as to keep the supporting surface constant.
- Notwithstanding the above refinements, a strongly felt problem is due to the fact that a linear cutting measurement, obtained with the perpendicular reference, varies as soon as the bar is rotated in order to provide angled cuts, since the distance of the abutment from the cutting line on the reference line varies according to trigonometric relations. This causes considerable complications in practical execution, since it requires dimensional correction operations which are very demanding for the ordinary user.
- The aim of the present invention is to eliminate the above-noted drawbacks, by providing a squaring machine which is simple in practical use for the ordinary user.
- Within this aim, a particular object of the present invention is to provide a machine which is highly flexible and rapid so as to meet the requirements and the demands for higher productivity.
- Another object of the present invention is to provide a machine which is simple, relatively easy to provide in practice, safe in use, effective in operation, and relatively modest in cost.
- These and other objects which will become better apparent hereinafter are achieved by a squaring machine, particularly for cutting panels, constituted by a frame which is articulated like a parallelogram and can slide on a horizontal flat carriage along a path which is parallel to the cutting line, said frame comprising, on a first stringer, a bar on which at least one locator for the positioning of said panel is slidingly provided, characterized in that it comprises positioning means, supported by said bar, which are adapted to adjust said locator along said bar, and angle variation means, provided on said frame, which are adapted for the adjustment, about a fulcrum, of said bar with respect to said cutting line, said means being electronically controllable and being mutually correlated so as to determine the movement of said locator in relation to said angle of said bar.
- Further characteristics and advantages of the present invention will become better apparent from the following detailed description of a preferred but not exclusive embodiment of the squaring machine, particularly for cutting panels, according to the invention, illustrated only by way of non-limitative example in the accompanying drawings, wherein:
- Figure 1 is a perspective view of a squaring machine according to the present invention;
- Figure 2 is a plan view of the squaring machine;
- Figure 3 is a plan view of the squaring machine in a different operating condition;
- Figure 4 is a perspective view of a panel supporting frame of the squaring machine;
- Figure 5 is a bottom perspective view of a detail of Figure 4;
- Figure 6 is a side view of a side of the frame.
-
- With reference to the figures, the
reference numeral 1 generally designates a squaring machine, particularly for cutting panels. Themachine 1 comprises afooting 2 which supports, on a top 2a, a slide 2b, on which aflat carriage 3 slides which is substantially rectangular and is elongated in the direction in which it slides. In the central region of the long side of theflat carriage 3 there is aplatform 4 which is supported bysupports 5 which protrude from thefooting 2. Theplatform 4 forms, on theedge 4b that lies at the front of theflat carriage 3, a slit 4a in which acutting blade 6 is accommodated, said blade forming a cutting line 6a which is parallel to theedge 4b. Theblade 6, as shown in Figures 2 and 3, is rotationally rigidly coupled to a horizontal secondary shaft 7a which is associated with amotor 7. - The
footing 2 rotatably supports, at a laterallower end 2c, atelescopic arm 8 which is adapted to support aframe 9 which is articulated like a parallelogram and is coplanar to theflat carriage 3. - The
frame 9 comprises two cross-members 9a and 9b which are mutually parallel and are articulated to two stringers 9c and 9d which are also mutually parallel. The first cross-member 9a is rotatably connected, in the central region, to the upper end 10a of arod 10 which is vertical and vertically adjustable and is rotatably connected, by means of itslower end 10b, to the tip 8a of thetelescopic arm 8, so as to allow horizontal support of the first cross-member 9a. Finally, twoprotrusions 12a and 12b protrude from the ends of the first cross-member 9a and rotatably support, as shown in Figures 2 and 3, aroller 12 which assists the sliding of the panels to be cut. The second cross-member 9b has, on the face directed toward theflat carriage 3, asliding block 11a which can slide along aguide 11 which is associated with the other long side of theflat carriage 3. The first stringer 9c and the second stringer 9d are rotatably connected to the ends of the first and second cross-members 9a, 9b and are rotatably connected, in their central region, to an element 9f which acts both as a support for the panels to be cut and as a reinforcement for theframe 9. - The first stringer 9c supports, at the tip 9g, a retention element 9h for the panels and supports, at the remaining portion, a
bar 13 which is rigidly coupled thereto and internally forms alongitudinal cavity 14, as shown in Figure 6. - The machine comprises positioning means, arranged inside the
cavity 14, and the means for varying the angle of thebar 13, which are associated with the central region of theframe 9. - The positioning means are constituted by a
belt 15 which runs along the entire length of thecavity 14 so as to wrap around twopulleys pulley 16, is actuated by anactuator 18 which is connected thereto by means of theshaft 19. Alocator 20 is fixed on thebelt 15 and is adapted to position the panel by means of an electronic management of theactuator 18. - The means for varying the angle of the
bar 13, as shown in Figures 4 and 5, are constituted by a toothed sector 21 which is fixed on the second stringer 9d. The toothed sector 21 meshes with a pinion 22 which is keyed on theshaft 23 of amotor 24 which is fixed onto the element 9f. Themotor 24 is controlled electronically and is correlated to theactuator 18 so that predefined angular variations applied to thebar 13 are matched, according to trigonometric relations, by specific linear movements of thelocator 20. - In the step before cutting, the wood panel is rested on the articulated
frame 9 and placed against thebar 13, which forms a linear reference which is perpendicular to the cutting line. The positioning of the panel is completed by locking it with thelocator 20 and the retention element 9g. - If the cut to be produced is at right angles, the positioning of the panel is adjusted in a linear fashion by the
locator 20 according to a predefined dimension, which is set on a computer and transmits to theactuator 18 the movements to be imparted to the positioning means. For right-angled cuts, there is also a manual adjustment by using a ruler graduated in millimeters provided on thebar 13. - At this point, after providing the above refinements, one has the certainty that a precision square cut is obtained by imparting a translatory motion to the
frame 9 in the direction of the arrow A toward thecutting blade 6. - If the cut to be provided is at an angle, after positioning the panel the cutting angle is set on the computer. The computer transmits the processed information to the motor and to the actuator, so that a rotation of the
bar 13, imparted by the motor, is automatically matched by a movement of the locator, imparted by the actuator, which leaves unchanged the distance of the locator from the cutting line. - From the above description it is evident that the invention achieves the intended aim and objects and in particular the fact is stressed that the electronic adjustment that controls the actuator and the motor by means of an interface, provided by a computing algorithm, allows to correct the error on the linear dimension produced by the arrangement of the bar at an angle with respect to the cutting line.
- The invention thus conceived is susceptible of numerous modifications and variations, all of which are within the scope of the inventive concept.
- All the details may furthermore be replaced with other technically equivalent ones.
- In practice, the materials used, as well as the shapes and the dimensions, may be any according to requirements without thereby abandoning the scope of the protection of the appended claims.
- Where technical features mentioned in any claim are followed by reference signs, those reference signs have been included for the sole purpose of increasing the intelligibility of the claims and accordingly such reference signs do not have any limiting effect on the scope of each element identified by way of example by such reference signs.
Claims (3)
- A squaring machine, particularly for cutting panels, constituted by a frame (9) which is articulated like a parallelogram and can slide on a horizontal flat carriage (3) along a path which is parallel to a cutting line (6a), said frame (9) comprising, on a first stringer (9c), a bar (13) on which at least one locator (20) for the positioning of said panel is slidingly provided, characterized in that it comprises positioning means (15), supported by said bar (13), which are adapted to adjust said locator (20) along said bar (13), and angle variation means (21), provided on said frame (9), which are adapted for the adjustment, about a fulcrum, of said bar (13) with respect to said cutting line (6a), said means being electronically controllable and being mutually correlated so as to determine the movement of said locator in relation to said angle of said bar (13).
- The machine according to claim 1, characterized in that said bar (13) comprises a longitudinal cavity (14) for accommodating said positioning means, which are constituted by a belt (15) which lies within said cavity (14) and wraps around two pulleys (16, 17), one of which can be actuated by an actuator (18), said locator (20) being fixed on said belt (15).
- The machine according to claim 1, characterized in that said means for varying the angle of said bar (13) comprise a toothed sector (21) which is rigidly coupled to a second stringer (9d) of said frame (9) and meshes with a pinion (22) which is keyed onto the shaft of a motor (23), supported by an element (9f) of said frame (9).
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60019936T DE60019936T2 (en) | 2000-11-10 | 2000-11-10 | Panel |
AT00124237T ATE294682T1 (en) | 2000-11-10 | 2000-11-10 | PANEL SAW |
EP00124237A EP1205285B1 (en) | 2000-11-10 | 2000-11-10 | Panel saw |
DE20023378U DE20023378U1 (en) | 2000-11-10 | 2000-11-10 | Format saw |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00124237A EP1205285B1 (en) | 2000-11-10 | 2000-11-10 | Panel saw |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1205285A1 true EP1205285A1 (en) | 2002-05-15 |
EP1205285B1 EP1205285B1 (en) | 2005-05-04 |
Family
ID=8170310
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00124237A Expired - Lifetime EP1205285B1 (en) | 2000-11-10 | 2000-11-10 | Panel saw |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1205285B1 (en) |
AT (1) | ATE294682T1 (en) |
DE (2) | DE60019936T2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1362677A2 (en) * | 2002-05-14 | 2003-11-19 | SCM GROUP S.p.A. | Apparatus to display the measurement of sloping cuts on panels |
EP1362658A1 (en) * | 2002-05-14 | 2003-11-19 | SCM GROUP S.p.A. | Machine for sawing panels |
EP1479471A2 (en) * | 2003-05-23 | 2004-11-24 | SCM GROUP S.p.A. | A machine for machining panels |
EP2100701A1 (en) | 2008-03-11 | 2009-09-16 | Wilhelm Altendorf GmbH & Co. KG | Panel saw |
ITMO20090053A1 (en) * | 2009-03-11 | 2010-09-12 | Scm Group Spa | SUPPORT SYSTEM |
WO2020229610A1 (en) * | 2019-05-16 | 2020-11-19 | Altendorf Gmbh | Transversal table for a woodworking machine and woodworking machine having such a transversal table, and method for controlling a woodworking machine |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20108153U1 (en) * | 2001-05-15 | 2002-09-19 | Otto Martin Maschinenbau GmbH & Co, 87724 Ottobeuren | Edging table movable in the cutting direction and woodworking machine with one edging table |
DE102007022785A1 (en) * | 2007-05-11 | 2008-11-13 | Otto Martin Maschinenbau Gmbh & Co | Processing machine i.e. circular saw, has controller clearing width of processing tool, and including height difference with pivoted tool to stopper position or stopper correction measure based on pivot angle |
DE102022201165A1 (en) | 2022-02-03 | 2023-08-03 | Festool Gmbh | Sawing device and method |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9307635U1 (en) * | 1993-05-19 | 1993-07-29 | Leonhard Hofmann Maschinenfabrik GmbH, 91438 Bad Windsheim | Parallelogram cross table for a circular saw |
US5251142A (en) * | 1990-12-14 | 1993-10-05 | Digital Cutting Systems, Inc. | Rip fence of table saw which may be positioned by computer control |
EP0692349A2 (en) * | 1994-06-21 | 1996-01-17 | Optical and Electronic Engineering Dr. Ing. ETH Paul D. Iten | Positioning device, in particular for sawing or milling machines |
-
2000
- 2000-11-10 EP EP00124237A patent/EP1205285B1/en not_active Expired - Lifetime
- 2000-11-10 AT AT00124237T patent/ATE294682T1/en not_active IP Right Cessation
- 2000-11-10 DE DE60019936T patent/DE60019936T2/en not_active Expired - Fee Related
- 2000-11-10 DE DE20023378U patent/DE20023378U1/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5251142A (en) * | 1990-12-14 | 1993-10-05 | Digital Cutting Systems, Inc. | Rip fence of table saw which may be positioned by computer control |
DE9307635U1 (en) * | 1993-05-19 | 1993-07-29 | Leonhard Hofmann Maschinenfabrik GmbH, 91438 Bad Windsheim | Parallelogram cross table for a circular saw |
EP0692349A2 (en) * | 1994-06-21 | 1996-01-17 | Optical and Electronic Engineering Dr. Ing. ETH Paul D. Iten | Positioning device, in particular for sawing or milling machines |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1362677A2 (en) * | 2002-05-14 | 2003-11-19 | SCM GROUP S.p.A. | Apparatus to display the measurement of sloping cuts on panels |
EP1362658A1 (en) * | 2002-05-14 | 2003-11-19 | SCM GROUP S.p.A. | Machine for sawing panels |
EP1362677A3 (en) * | 2002-05-14 | 2004-04-21 | SCM GROUP S.p.A. | Apparatus to display the measurement of sloping cuts on panels |
EP1479471A2 (en) * | 2003-05-23 | 2004-11-24 | SCM GROUP S.p.A. | A machine for machining panels |
EP1479471A3 (en) * | 2003-05-23 | 2005-01-12 | SCM GROUP S.p.A. | A machine for machining panels |
EP2100701A1 (en) | 2008-03-11 | 2009-09-16 | Wilhelm Altendorf GmbH & Co. KG | Panel saw |
ITMO20090053A1 (en) * | 2009-03-11 | 2010-09-12 | Scm Group Spa | SUPPORT SYSTEM |
EP2228184A1 (en) * | 2009-03-11 | 2010-09-15 | SCM Group S.p.A. | Workpiece supporting apparatus |
WO2020229610A1 (en) * | 2019-05-16 | 2020-11-19 | Altendorf Gmbh | Transversal table for a woodworking machine and woodworking machine having such a transversal table, and method for controlling a woodworking machine |
Also Published As
Publication number | Publication date |
---|---|
DE60019936D1 (en) | 2005-06-09 |
EP1205285B1 (en) | 2005-05-04 |
DE20023378U1 (en) | 2004-01-08 |
ATE294682T1 (en) | 2005-05-15 |
DE60019936T2 (en) | 2005-09-22 |
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