EP1772232A1 - Abrading group - Google Patents
Abrading group Download PDFInfo
- Publication number
- EP1772232A1 EP1772232A1 EP06020978A EP06020978A EP1772232A1 EP 1772232 A1 EP1772232 A1 EP 1772232A1 EP 06020978 A EP06020978 A EP 06020978A EP 06020978 A EP06020978 A EP 06020978A EP 1772232 A1 EP1772232 A1 EP 1772232A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- abrading
- crossbar
- driving means
- driving
- along
- 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.)
- Withdrawn
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Classifications
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- 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
- B24B27/00—Other grinding machines or devices
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- 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
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
- B24B41/047—Grinding heads for working on plane surfaces
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- 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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/02—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables
- B24B47/04—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables by mechanical gearing only
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- 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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
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- 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
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
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- 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
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/06—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor involving conveyor belts, a sequence of travelling work-tables or the like
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- 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
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
- B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
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- 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
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/002—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor for travelling workpieces
Definitions
- the invention relates to an abrading group that is associable with a machine tool, for example a sanding machine arranged for processing wood or comparable materials and a driving method for driving the aforesaid abrading group.
- the invention relates to an abrading group provided with abrading tools arranged for finishing and sanding corner zones of a piece to be processed, for example a panel.
- Abrading groups comprising an endless conveying belt that is positioned transversely to and above a conveyor belt arranged for conveying a piece to be processed.
- the conveying belt moves along a loop path that is substantially transverse to an advance direction of the conveyor belt and comprises a plurality of frontal abrading tools, in particular abrading brushes.
- the abrading brushes are positioned next to one another and are arranged in a row like the keys of a piano, in a substantially parallel manner with respect to the advance direction of the conveyor belt.
- Each abrading brush is further provided with strips of abrasive paper arranged for interacting with a surface to be processed.
- the slide is driven by a connecting rod-crank unit and is arranged for move forwards and backwards transversely to the advance direction of the conveyor belt and is designed for supporting a plurality of abrading brushes of the aforesaid type.
- abrading groups comprising peripherally abrading tools, in particular one or more rotating cylinders, for example two, having opposite rotating directions, which are positioned transversely and above the conveyor belt.
- the rotating cylinders comprise a side surface from which a plurality of abrading elements project radially.
- the abrading elements are positioned substantially transversely with respect to the advance direction of the conveyor belt, in such a way as to come into contact, in use, with the surface to be processed.
- a drawback that besets the aforesaid known abrading groups is that they do not allow uniform finishing of the surface to be sanded.
- the abrading groups provided with abrading brushes do not allow suitable sanding of corner zones that are substantially transverse with respect to the advance direction of the piece
- the abrading groups comprising rotating cylinders do not allow suitable abrading of corner zones that are substantially parallel to the advance direction of the piece.
- the aforesaid abrading groups are used together in known sanding machines, the abrading groups being positioned downstream of one another, in order to ensure even surface finishing.
- Abrading groups are also known comprising a plurality of frontal abrading tools, in particular abrading discs, each fitted on a respective rotating spindle.
- Each abrading disc comprises a lower surface from which a plurality of supports projects, positioned radially, each arranged for supporting abrading blades.
- the rotating abrading discs are supported by a movable frame, which is mounted above and transversely to the conveyor belt.
- the movable frame driven by pneumatic actuators, is arranged for oscillating along a transverse guide, creating a reciprocating movement.
- a drawback that besets the aforesaid known abrading groups is the discontinuity of the working conditions of the abrading tools at the motion reversal points.
- a further drawback of the aforesaid known abrading groups is the necessity of using two distinct sources of energy: electric energy for rotating the rotating discs and compressed air for moving the movable crossbar.
- An object of the invention is to improve the abrading groups associable with sanding machines arranged for processing wood or comparable materials.
- a further object is to obtain an abrading group that improves the surface quality of the piece to be processed.
- a still further object is to obtain abrading groups that are simple to make and of modest cost.
- Still another object is to provide for a driving method for driving the aforesaid abrading groups that enables the surface finishing of the piece to be processed to be improved.
- an abrading group comprising a plurality of abrading units rotationally mounted on crossbar means extending along a transverse direction that is transverse with respect to an intended advance direction of pieces to be abraded, driving means for rotating each abrading unit around a longitudinal axis thereof, further driving means for oscillating said crossbar means along said transverse direction, characterised in that said further driving means is such as to oscillate said crossbar means also along said advance direction.
- a method comprising driving a plurality of abrading units arranged for abrading a surface of a piece to be abraded with a motion having a component along a transverse direction that is transverse with respect to an intended advance direction of said piece to be abraded, characterised in that it comprises further driving said plurality of abrading units with a further motion having a component along said advance direction.
- the driving means and the further driving means can both be driven by a single energy source, in particular electric energy.
- an abrading group 1 associable with a sanding machine arranged for processing wood or comparable materials.
- the abrading unit 1 is arranged for finishing and sanding corner zones 3 of a piece 2 to be processed ( Figures 2 and 3).
- the abrading group 1 is provided with a plurality of abrading units 4, comprising abrading discs 5 that are frontal and arranged for rotating in a rotation direction R around a substantially vertical axis Z.
- Each abrading disc 5 comprises a surface 6, operationally facing the piece 2, and supporting a plurality of clamps that are not shown.
- the radially positioned clamps are designed for supporting abrading elements 7.
- the abrading elements 7, projecting from the aforesaid clamps, comprise a strip of abrasive paper arranged for abrading the piece 2, and a plurality of supporting bristles.
- the bristles having a height extension that is less than the strip of abrasive paper, are positioned in contact with the latter.
- the bristles support the strip of abrasive paper increasing a flexional stiffness value of the latter, with a consequent increase in abrading capacity.
- the bristles in use, resist the tendency of the abrasive strip to move away from the piece 2, acting as an abutment.
- Each abrading disc 5 is removably fixed, for example through a threaded connection, to a respective spindle 8.
- Each spindle 8, provided with bearings 9, is supported by a box element 10, extending along a direction that is substantially parallel to the axis Z.
- the spindle 8 comprises an end 11 on which a drawn pulley 12 is fitted.
- Each drawn pulley 12 is rotated by endless flexible driving means 13 that is controlled by first motor means 14, for example an electric motor.
- the first motor means 14 further comprises a plurality of tensioning rollers 15 arranged for tensioning the flexible driving means 13 and for ensuring a sufficiently wide winding angle ⁇ (Figure 2), which is defined by a portion of the aforesaid flexible driving means 13 in contact with a peripheral portion of the drawn pulley 12.
- the abrading group 1 further comprises a crossbar 16 arranged for supporting the box elements 9 and consequently the abrading discs 5.
- the crossbar 16 which is supported at the ends thereof by a frame 17, extends above, and substantially transversely to, a conveyor belt 18 that is arranged for conveying the piece 2, extending and movable along a further substantially horizontal axis X.
- the crossbar 16 is positioned substantially transversely with respect to an advance direction F of the aforesaid conveyor belt 18, the advance direction F being substantially parallel to the further axis X.
- the abrading group 1 further comprises driving means 19 that is arranged for moving the crossbar 16.
- the driving means 19 is received in a space 20 with which the frame 17 is' provided, the frame 17 being in turn supported by a base 21.
- the driving means 19 is positioned substantially at a first end 23 and at a second end 24 of the crossbar 16.
- the driving means 19 comprises shaft means 25 that is arranged for rotating around a first vertical axis A1.
- the shaft means 25 is provided with a first end portion 26, a second end portion 27 and an eccentric portion 28, which is interposed between the first end portion 26 and the second end portion 27.
- the first end portion 26 and the second end portion 27 extend around the first vertical axis Al, whilst the eccentric portion 28 extends longitudinally around a second vertical axis A2 that is substantially parallel to the first vertical axis A1.
- the first end portion 26 is arranged for engaging with a reduction gear 29 of a motor unit 30, whilst the second end portion 27, which is provided with bearing means 31, is mounted on an annular plate 32 removably fixed to the frame 17.
- the motor unit 30 comprises end pulleys 33 driven by further flexible driving means 34, which is endless and moved by second motor means' 35, for example an electric motor.
- the first end 23 and the second end 24 of the crossbar 16 are fitted on the eccentric portion 28 through fixing means 36 provided with further bearing means 37.
- the eccentric portion 28 rotates around the first vertical axis A1, which is different from, and parallel to, the second vertical axis A2.
- the eccentric portion 28 is able to transmit a motion to the crossbar 16, which is integral with the eccentric portion 28.
- This motion which is induced by the eccentric portion 28, comprises a component C that is substantially parallel to the advance direction F of the piece 2 and a component D that is substantially perpendicular to the advance direction F of the piece 2.
- the abrading discs 5, in addition to rotating around the rotation axis Z, are also moved by the crossbar 16 along a trajectory that is defined by the substantially parallel component C and by the substantially perpendicular component D.
- first motor means 14 and the second motor means 35 are both driven by a single energy source, in particular electric energy.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
An abrading group comprises a plurality of abrading units (4) rotationally mounted on crossbar means (16) extending along a transverse direction (D) that is transverse with respect to an intended advance direction (F) of pieces to be abraded (2), driving means for rotating each abrading unit (4) around a longitudinal axis thereof (z), further driving means for oscillating said crossbar means (16) along said transverse direction (D), said further driving means is such as to oscillate said crossbar means (16) also along said advance direction (F).
Description
- The invention relates to an abrading group that is associable with a machine tool, for example a sanding machine arranged for processing wood or comparable materials and a driving method for driving the aforesaid abrading group.
- In particular, the invention relates to an abrading group provided with abrading tools arranged for finishing and sanding corner zones of a piece to be processed, for example a panel.
- Abrading groups are known comprising an endless conveying belt that is positioned transversely to and above a conveyor belt arranged for conveying a piece to be processed.
- The conveying belt moves along a loop path that is substantially transverse to an advance direction of the conveyor belt and comprises a plurality of frontal abrading tools, in particular abrading brushes.
- The abrading brushes are positioned next to one another and are arranged in a row like the keys of a piano, in a substantially parallel manner with respect to the advance direction of the conveyor belt.
- Each abrading brush is further provided with strips of abrasive paper arranged for interacting with a surface to be processed.
- Further abrading groups are known comprising a slide mounted transversely to and above the conveyor belt.
- The slide is driven by a connecting rod-crank unit and is arranged for move forwards and backwards transversely to the advance direction of the conveyor belt and is designed for supporting a plurality of abrading brushes of the aforesaid type.
- Still further abrading groups are known comprising peripherally abrading tools, in particular one or more rotating cylinders, for example two, having opposite rotating directions, which are positioned transversely and above the conveyor belt.
- The rotating cylinders comprise a side surface from which a plurality of abrading elements project radially.
- The abrading elements are positioned substantially transversely with respect to the advance direction of the conveyor belt, in such a way as to come into contact, in use, with the surface to be processed.
- A drawback that besets the aforesaid known abrading groups is that they do not allow uniform finishing of the surface to be sanded.
- In fact, the abrading groups provided with abrading brushes do not allow suitable sanding of corner zones that are substantially transverse with respect to the advance direction of the piece, on the other hand, the abrading groups comprising rotating cylinders do not allow suitable abrading of corner zones that are substantially parallel to the advance direction of the piece.
- For this reason, the aforesaid abrading groups are used together in known sanding machines, the abrading groups being positioned downstream of one another, in order to ensure even surface finishing.
- It is clear that this, in addition to involving a financial burden, involves difficulties in designing the layout of the system.
- Abrading groups are also known comprising a plurality of frontal abrading tools, in particular abrading discs, each fitted on a respective rotating spindle.
- Each abrading disc comprises a lower surface from which a plurality of supports projects, positioned radially, each arranged for supporting abrading blades.
- The rotating abrading discs are supported by a movable frame, which is mounted above and transversely to the conveyor belt.
- The movable frame, driven by pneumatic actuators, is arranged for oscillating along a transverse guide, creating a reciprocating movement.
- In this way, whilst the rotating discs rotate they are moved forwards and backwards by the movable frame.
- A drawback that besets the aforesaid known abrading groups is the discontinuity of the working conditions of the abrading tools at the motion reversal points.
- In fact, at the motion reversal points, a short interval elapses in which the movable frame is substantially stationary.
- Thus, during this interval, the frontal tools abrade the piece only by rotating.
- Therefore, it occurs that a portion of the surface of the piece, which portion has been abraded in this interval, has a surface quality that is inferior to a further portion that has been abraded during normal movement of the frame.
- A further drawback of the aforesaid known abrading groups is the necessity of using two distinct sources of energy: electric energy for rotating the rotating discs and compressed air for moving the movable crossbar.
- In addition to increasing expense, this also entails constructional difficulties inasmuch for using compressed air it is necessary to provide for and install complex pneumatic cabling.
- An object of the invention is to improve the abrading groups associable with sanding machines arranged for processing wood or comparable materials.
- A further object is to obtain an abrading group that improves the surface quality of the piece to be processed.
- A still further object is to obtain abrading groups that are simple to make and of modest cost.
- Still another object is to provide for a driving method for driving the aforesaid abrading groups that enables the surface finishing of the piece to be processed to be improved.
- In a first aspect of the invention, there is provided an abrading group comprising a plurality of abrading units rotationally mounted on crossbar means extending along a transverse direction that is transverse with respect to an intended advance direction of pieces to be abraded, driving means for rotating each abrading unit around a longitudinal axis thereof, further driving means for oscillating said crossbar means along said transverse direction, characterised in that said further driving means is such as to oscillate said crossbar means also along said advance direction.
- In a second aspect of the invention, there is provided a method comprising driving a plurality of abrading units arranged for abrading a surface of a piece to be abraded with a motion having a component along a transverse direction that is transverse with respect to an intended advance direction of said piece to be abraded, characterised in that it comprises further driving said plurality of abrading units with a further motion having a component along said advance direction.
- Owing to the aforesaid aspects of the invention, it is possible to increase the operating fluidity of the abrading units, consequently increasing the surface quality of the processing.
- In fact, owing to the further moving means, it is possible to maintain the abrading units in uninterrupted movement, making the surface quality of the piece uniform.
- Further, the driving means and the further driving means can both be driven by a single energy source, in particular electric energy.
- This makes the pneumatic cabling superfluous that is provided in the known abrading groups, with consequent reduction of manufacturing difficulties and money savings.
- The invention will be better understood and carried into effect with reference to the attached drawings, in which an embodiment of the invention is shown by way of non-limiting example, in which:
- Figure 1 is a partially sectioned frontal schematic view of an abrading group;
- Figure 2 is a schematic view from above of the abrading group di Figure 1;
- Figure 3 is a schematic view from above of the abrading group in Figure 1 in an operating configuration.
- With reference to Figure 1 there is shown an abrading group 1 associable with a sanding machine arranged for processing wood or comparable materials.
- The abrading unit 1 is arranged for finishing and
sanding corner zones 3 of apiece 2 to be processed (Figures 2 and 3). - The abrading group 1 is provided with a plurality of
abrading units 4, comprisingabrading discs 5 that are frontal and arranged for rotating in a rotation direction R around a substantially vertical axis Z. - Each
abrading disc 5 comprises a surface 6, operationally facing thepiece 2, and supporting a plurality of clamps that are not shown. - The radially positioned clamps are designed for supporting abrading elements 7.
- The abrading elements 7, projecting from the aforesaid clamps, comprise a strip of abrasive paper arranged for abrading the
piece 2, and a plurality of supporting bristles. - The bristles, having a height extension that is less than the strip of abrasive paper, are positioned in contact with the latter.
- In this way, in use, the bristles support the strip of abrasive paper increasing a flexional stiffness value of the latter, with a consequent increase in abrading capacity.
- In other words, the bristles, in use, resist the tendency of the abrasive strip to move away from the
piece 2, acting as an abutment. - Each
abrading disc 5 is removably fixed, for example through a threaded connection, to arespective spindle 8. - Each
spindle 8, provided withbearings 9, is supported by abox element 10, extending along a direction that is substantially parallel to the axis Z. - The
spindle 8 comprises anend 11 on which a drawnpulley 12 is fitted. - Each drawn
pulley 12 is rotated by endless flexible driving means 13 that is controlled by first motor means 14, for example an electric motor. - The first motor means 14 further comprises a plurality of
tensioning rollers 15 arranged for tensioning the flexible driving means 13 and for ensuring a sufficiently wide winding angle α (Figure 2), which is defined by a portion of the aforesaid flexible driving means 13 in contact with a peripheral portion of the drawnpulley 12. - The abrading group 1 further comprises a
crossbar 16 arranged for supporting thebox elements 9 and consequently theabrading discs 5. - The
crossbar 16, which is supported at the ends thereof by aframe 17, extends above, and substantially transversely to, aconveyor belt 18 that is arranged for conveying thepiece 2, extending and movable along a further substantially horizontal axis X. - In other words, the
crossbar 16 is positioned substantially transversely with respect to an advance direction F of theaforesaid conveyor belt 18, the advance direction F being substantially parallel to the further axis X. - The abrading group 1 further comprises driving means 19 that is arranged for moving the
crossbar 16. - The driving means 19 is received in a
space 20 with which theframe 17 is' provided, theframe 17 being in turn supported by abase 21. - The driving means 19 is positioned substantially at a
first end 23 and at asecond end 24 of thecrossbar 16. - The driving means 19 comprises shaft means 25 that is arranged for rotating around a first vertical axis A1.
- The shaft means 25 is provided with a
first end portion 26, asecond end portion 27 and aneccentric portion 28, which is interposed between thefirst end portion 26 and thesecond end portion 27. - The
first end portion 26 and thesecond end portion 27 extend around the first vertical axis Al, whilst theeccentric portion 28 extends longitudinally around a second vertical axis A2 that is substantially parallel to the first vertical axis A1. - The
first end portion 26 is arranged for engaging with areduction gear 29 of amotor unit 30, whilst thesecond end portion 27, which is provided with bearing means 31, is mounted on anannular plate 32 removably fixed to theframe 17. - The
motor unit 30 comprises end pulleys 33 driven by further flexible driving means 34, which is endless and moved by second motor means' 35, for example an electric motor. - The
first end 23 and thesecond end 24 of thecrossbar 16 are fitted on theeccentric portion 28 through fixing means 36 provided with further bearing means 37. - During working (Figure 3), the
eccentric portion 28 rotates around the first vertical axis A1, which is different from, and parallel to, the second vertical axis A2. - In this way, the
eccentric portion 28 is able to transmit a motion to thecrossbar 16, which is integral with theeccentric portion 28. - This motion, which is induced by the
eccentric portion 28, comprises a component C that is substantially parallel to the advance direction F of thepiece 2 and a component D that is substantially perpendicular to the advance direction F of thepiece 2. - During working, therefore, the abrading
discs 5, in addition to rotating around the rotation axis Z, are also moved by thecrossbar 16 along a trajectory that is defined by the substantially parallel component C and by the substantially perpendicular component D. - It should be noted that this makes it possible to increase the operating fluidity of the abrading
discs 5, consequently improving the surface quality of the processing. - In fact, the abrading
discs 5, whilst they rotate, are moved without interruptions along the aforesaid trajectory. - It is clear how this makes sanding of the
piece 2 more uniform with consequent improvement of the surface quality of the processing. - Furthermore, the first motor means 14 and the second motor means 35 are both driven by a single energy source, in particular electric energy.
- This makes the pneumatic cabling superfluous that are provided in the known abrading groups with consequent reduction of manufacturing difficulties and money saving.
Claims (9)
- Abrading group comprising a plurality of abrading units (4) rotationally mounted on crossbar means (16) extending along a transverse direction (D), said transverse direction (D) being transverse with respect to an intended advance direction (F) of pieces (2) to be abraded, driving means for rotating each abrading unit (4) around a longitudinal axis (Z) thereof, further driving means for oscillating said crossbar means (16) along said transverse direction (D), characterised in that said further driving means is such as to oscillate said crossbar means (16) also along said advance direction (F).
- Abrading group according to claim 1, wherein said further driving means comprises eccentric driving means (28).
- Abrading group according to claim 2, wherein said eccentric means is obtained in a portion (28) of longitudinal extent of shaft means (25).
- Abrading group according to claim 3, wherein said portion (28) is coupled with said crossbar means (16).
- Abrading group according to claim 3, or 4, wherein said shaft means (25) comprises an end portion (26) that is rotated by an electric motor (35).
- Abrading group according to any preceding claim, wherein each abrading unit (4) comprises abrading disc means (5) operationally facing said pieces (2) to be abraded.
- Method comprising driving a plurality of abrading units (4) arranged for abrading a surface (3) of a piece (2) to be abraded with a motion having a component along a transverse direction (D), said transverse direction (D) being transverse with respect to an intended advance direction (F) of said piece (2) to be abraded, characterised in that it further comprises driving said plurality of abrading units (4) with a further motion having a component along said advance direction (F).
- Method according to claim 7, wherein said driving occurs by moving crossbar means (16) on which said plurality of abrading units (4) is mounted.
- Method according to claim 7, or 8, and further comprising rotating each abrading unit (4) around a longitudinal axis thereof (z).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000254A ITMO20050254A1 (en) | 2005-10-06 | 2005-10-06 | ABRASIVE GROUP |
Publications (1)
Publication Number | Publication Date |
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EP1772232A1 true EP1772232A1 (en) | 2007-04-11 |
Family
ID=37491827
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06020978A Withdrawn EP1772232A1 (en) | 2005-10-06 | 2006-10-05 | Abrading group |
Country Status (3)
Country | Link |
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US (1) | US20070082586A1 (en) |
EP (1) | EP1772232A1 (en) |
IT (1) | ITMO20050254A1 (en) |
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WO2015087294A1 (en) * | 2013-12-13 | 2015-06-18 | Luca Toncelli | Machine for smoothing and/or polishing slabs of stone material, such as natural or agglomerated stone, ceramic and glass |
CN106514478A (en) * | 2017-01-04 | 2017-03-22 | 广东鼎科技有限公司 | Efficient polishing machine |
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US9950404B1 (en) | 2012-03-29 | 2018-04-24 | Alta Devices, Inc. | High throughput polishing system for workpieces |
ES2669347T3 (en) * | 2014-07-24 | 2018-05-25 | Luca Toncelli | Procedure for smoothing and / or polishing stone slabs or stone-like material |
CN107297667A (en) * | 2016-04-15 | 2017-10-27 | 中车贵阳车辆有限公司 | A kind of derusting method of pipe fitting and pipe fitting rust removalling equipment used |
CN112025555A (en) * | 2020-08-31 | 2020-12-04 | 珠海市惠装居装饰有限责任公司 | Clamping and polishing infant home machining device capable of automatically controlling dust removal according to temperature |
Citations (3)
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US1474672A (en) * | 1921-11-01 | 1923-11-20 | Heuze Charles | Apparatus for grinding, smoothing, and polishing glass, plate glass, and other material substances |
US1684029A (en) * | 1926-12-11 | 1928-09-11 | Hartford Empire Co | Method and apparatus for polishing glass |
US1955128A (en) * | 1931-04-29 | 1934-04-17 | Libbey Owens Ford Glass Co | Glass grinding apparatus |
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US2539107A (en) * | 1948-04-28 | 1951-01-23 | Charles W Sectish | Grinding machine |
US2627143A (en) * | 1950-07-05 | 1953-02-03 | Thomas W Beyer | Machine for grinding files |
US2945330A (en) * | 1957-01-17 | 1960-07-19 | Saint Gobain | Apparatus for surfacing glass |
US3006116A (en) * | 1959-02-17 | 1961-10-31 | Lloyd H Knost | Apparatus for honing hard surfaced materials |
US4742650A (en) * | 1986-11-07 | 1988-05-10 | Conestoga Wood Specialities, Inc. | Sanding machine |
US4864775A (en) * | 1988-05-16 | 1989-09-12 | Timesavers, Inc. | Cross-belt sanding machine with oscillating platen means |
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US6869349B2 (en) * | 2002-10-10 | 2005-03-22 | Slipcon Holding International Aps | Abrading machine with abrading discs, which are moved in a reciprocatory movement transverse to an item |
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2006
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- 2006-10-05 EP EP06020978A patent/EP1772232A1/en not_active Withdrawn
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US1909902A (en) * | 1926-02-01 | 1933-05-16 | Simplex Engineering Company | Glass polishing apparatus |
DE2740696A1 (en) * | 1977-09-09 | 1979-03-15 | Steinbearbeitungs Maschinenfab | Grinder or polisher for faces stones - has work face on table moved with circular movement superimposed on linear feed |
US5081794A (en) * | 1990-08-17 | 1992-01-21 | Haney Donald E | Sander with orbiting platen and abrasive |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2377646A1 (en) * | 2010-04-19 | 2011-10-19 | SCM Group S.p.A. | Device for finishing edges and/or outer surfaces of workpieces |
ITMO20100117A1 (en) * | 2010-04-19 | 2011-10-20 | Scm Group Spa | DEVICE FOR FINISHING EDGES AND / OR EXTERNAL SURFACES OF WORK PIECES |
WO2015087294A1 (en) * | 2013-12-13 | 2015-06-18 | Luca Toncelli | Machine for smoothing and/or polishing slabs of stone material, such as natural or agglomerated stone, ceramic and glass |
US10771388B2 (en) | 2013-12-13 | 2020-09-08 | Luca Toncelli | Machine for smoothing and/or polishing slabs of stone material, such as natural or agglomerated stone, ceramic and glass |
CN104191341A (en) * | 2014-08-13 | 2014-12-10 | 苏州奥林五金有限公司 | Novel polishing machine |
CN106514478A (en) * | 2017-01-04 | 2017-03-22 | 广东鼎科技有限公司 | Efficient polishing machine |
CN110539212A (en) * | 2019-09-28 | 2019-12-06 | 长沙埃福思科技有限公司 | multi-workpiece ion beam polishing system and method |
IT201900024631A1 (en) * | 2019-12-19 | 2021-06-19 | Biesse Spa | DEBURRING MACHINE FOR FINISHING ELEMENTS OF WOOD, METAL, PLASTIC MATERIAL OR SIMILAR |
EP3838479A1 (en) * | 2019-12-19 | 2021-06-23 | Viet Italia S.r.l. | Deburring machine for the finishing of elements made of wood, metal, plastic material or the like |
Also Published As
Publication number | Publication date |
---|---|
ITMO20050254A1 (en) | 2007-04-07 |
US20070082586A1 (en) | 2007-04-12 |
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