WO2003092956A1 - Sanding machine - Google Patents
Sanding machine Download PDFInfo
- Publication number
- WO2003092956A1 WO2003092956A1 PCT/EP2003/004474 EP0304474W WO03092956A1 WO 2003092956 A1 WO2003092956 A1 WO 2003092956A1 EP 0304474 W EP0304474 W EP 0304474W WO 03092956 A1 WO03092956 A1 WO 03092956A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sanding machine
- sanding
- support structure
- piece
- abrasive
- Prior art date
Links
Classifications
-
- 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
-
- 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
-
- 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
- B24B7/28—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 wood
Definitions
- the invention concerns a sanding machine particularly suitable for being used in the surface processing of panels, doors, furniture doors and similar parts.
- This type of processing is generally carried out on raw or painted wood-based materials, but in different applications it can be adopted also for different materials, like plastic or metal, to work on corners or to remove the residues of previous processing.
- the abrasive elements are generally constituted by abrasive paper strips closed to form a ring and rotating on a pair of pulleys.
- a particular type of machines normally used for sanding low relief surfaces involves the use of abrasive brushes comprising a plurality of abrasive tapes, usually interchangeable, applied to the outer surface of a rotating roller.
- the adhesion of the piece to the conveyor belt is guaranteed by the action of suitable pressing elements that press the piece, as well as by the holding effect obtained by means of a suction unit positioned on the surface of the conveyor belt.
- the piece to be sanded is set in motion by the conveyor belt substantially in one direction only with respect to the abrasive brushes that, being usually positioned over the conveyor belt, determine the sanding of one side only of the piece to be sanded, usually the visible upper surface.
- the aim of this invention is to overcome the drawbacks described above.
- One of the main aims of the invention is to manufacture a sanding machine with which a piece can be sanded with a single processing cycle.
- Another aim of the invention is to manufacture a sanding machine that is capable of sanding a piece ensuring a higher quality compared to the equivalent machines of the known types.
- a further aim of the invention is to manufacture a sanding machine requiring simplified maintenance operations compared to machines of the known types.
- a sanding machine that, according to the contents of the main claim, is of the type comprising a support structure for the piece to be processed and a sanding unit for sanding said piece, characterized in that said sanding unit comprises a frame supporting:
- At least one winding element cooperating with kinematic means suitable for setting it in motion according to a closed-ring configuration on a plane that is substantially parallel to the plane defined by said support structure; - a plurality of abrasive elements combined with said winding element, positioned spaced from one another and provided with at least one abrasive surface suitable for coming in contact with said piece during the movement of said winding element.
- the winding element is constituted by a closed belt wound between two pulleys, one of which is motor driven.
- Each abrasive element is constituted by a laminar abrasive element connected with the belt by means of a shaft positioned substantially perpendicular to the plane defined by the support structure.
- the abrasive elements sequentially involve the side edges of the piece and its visible upper surface, thus carrying out the complete sanding of the piece.
- FIG. 1 is an axonometric view of the sanding machine object of the invention
- Figure 2 shows a partial cross-section of Figure 1 ;
- FIG. 3 is a side view of Figure 1 ;
- - Figures from 4 to 6 are schematic top views of the machine object of the invention in different piece processing phases;
- Figure 7 shows a cross-section of an enlarged detail of Figure 1 ;
- FIG. 8 is an axonometric view of a detail of an abrasive element
- FIG. 9 is an axonometric view of a detail of Figure 7; - Figures from 10 to 12 show a schematic top view of a variant of the machine object of the invention in different piece processing phases;
- FIG. 13 is a schematic top view of another variant of the invention.
- FIG. 14 is an axonometric view with a partial cross section of a further variant of the invention.
- - Figure 15 shows a variant of Figure 9.
- the support structure 2 substantially comprises a support structure 2 for the piece 3 to be worked and a sanding unit, indicated as a whole by 4, for sanding the piece 3.
- the support structure 2 is movable with respect to the sanding unit 4 and substantially comprises a conveyor belt 5 wound to form a closed ring between a pair of rotating cylinders 6, 7.
- the relative movement between the sanding unit 4 and the support structure 2 can be obtained, for example, by moving the sanding unit 4 only.
- the sanding unit 4 comprises a frame 40 supporting a winding element 8, as can be seen in greater detail in Figure 2, cooperating with kinematic means, indicated as a whole by 9, and a plurality of abrasive elements 10, combined with the winding element 8 and arranged spaced from one another along the development of the winding element 8 itself.
- the winding element 8 assumes a closed ring configuration on a plane ⁇ 1 substantially parallel to the plane ⁇ 2 defined by the support structure
- planes ⁇ 1 and ⁇ 2 are positioned horizontally, but it is clear that in different applications they can have any position, even inclined.
- the winding element 8 it is constituted by a belt closed to form a ring and cooperating, as already said, with the kinematic means 9 that set it rotating on plane ⁇ 1.
- the kinematic means 9 are constituted by two pulleys 1 1 , 12, between which the winding element 8 is wound and by motorization means, indicated as a whole by 13, mechanically connected with one of said pulleys, in the case represented in the figure with pulley 12, to set it rotating.
- Each one of the abrasive elements 10, as shown in Figure 7, is constituted by a laminar abrasive element 14 connected with the winding element 8 by means of a shaft 15 arranged substantially perpendicular to the support structure 2, where the piece to be processed 3 is positioned.
- the laminar abrasive element 14, as shown in the detail of Figure 8, is preferably constituted by abrasive strips of the known type, comprising a piece of abrasive paper 16, on which a series of fringes is obtained.
- the abrasive paper 16 is positioned at the side of a series of fibrous element 17 that, owing to their intrinsic elasticity, determine the flexibility of the laminar abrasive element 14 itself.
- each laminar abrasive element 14 is positioned inclined with respect to the advance directions of the winding element 8, indicated by the arrows 18 and 19, with respect to the two main sides 20, 21 on which the winding element 8 itself is wound.
- the laminar abrasive element 14 clearly has the abrasive paper 16 positioned at the front and the fibrous elements 17 positioned at the rear with respect to the advance directions of the winding element 8.
- the shaft 15 is provided with articulation means, indicated as a whole by 22, that make it possible to define, as we shall see later on, suitable and different inclined positions of the laminar abrasive element 14.
- the articulation means 22 can be carried out according to known techniques commonly used in the mechanical sector.
- the same are advantageously joined to their respective support shaft 15 so that they can be removed, thus ensuring easy and quick replacement.
- guide means are provided, indicated by 26 in Figure 7, substantially constituted by rails that develop at least for part of the length of the winding element 8 and slidingly receive the shaft 15 of the abrasive element 10.
- the shaft 15 is combined with rolling sliding means 27 that, cooperating with the rails 26, guide the abrasive elements 10, thus reducing the stress on the winding element 8 and reducing the oscillation of the winding element 8 to the minimum.
- said guide means 26 will develop for a width corresponding to the maximum width admissible for the pieces to be processed.
- pressing elements indicated as a whole by 28, constituted by rollers that during the sanding process are positioned in such a way as to adhere to the piece to be processed 3 and facilitate its adhesion to the support structure
- the support structure 2 may be provided with suction means, not represented in the figure for simplicity's sake and in any case already known, which further increase the adhesion of the piece 3.
- the piece to be processed 3 advances in a substantially perpendicular direction with respect to the parallel advance directions 18, 19 of the winding element 8.
- the piece 3 advances further and, as can be observed in Figure 5, comes in contact with the abrasive elements 14 of both sides 20, 21.
- the abrasive elements 14 of the side 20 come in contact with the side edge 3b and the visible upper surface 3e of the piece 3.
- the abrasive elements 14 of the side 21 come in contact with the side edge 3d and the same visible surface 3e.
- the pressing elements 28 can be arranged at a shorter distance from one another, thus ensuring optimal adhesion also for small pieces.
- a sanding unit 4 of the type described above may also be advantageously combined with traditional sanding units, for example sanding units with rotary brushes.
- the figures from 10 to 12 schematically show a variant of the sanding machine object of the invention during different processing phases; it differs from the previous one for the different inclination of the laminar abrasive elements 1 14.
- Said abrasive elements are inclined according to an alternate configuration that, compared to the previous application, ensures compensated distribution of stresses on the winding element, due to the contact of the laminar abrasive elements 114 with the piece to be processed.
- FIG 13 shows a further variant of the invention, which differs from the previous applications described above for the different arrangement of the laminar abrasive elements 214 that, in this case, are perpendicular to the advance directions of the winding element.
- Figure 14 shows a further variant of the invention, indicated as a whole by 300.
- Figure 15 shows a different construction of the holding means 423 of the laminar abrasive element 414, comprising a movable plate 424 positioned against the laminar abrasive element 414 owing to the action of a pair of lateral springs 430 that are integral with the shaft 415.
- the laminar abrasive element 414 can advantageously comprise two distinct parts 416, 417, the first part 416 being constituted by the abrasive paper and the second part 417 being constituted by fibrous elements.
- the sanding machine object of the invention in the different variants illustrated and described herein, achieves the aims set and offers the advantages described.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Soil Working Implements (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR0309763-3A BR0309763A (en) | 2002-05-02 | 2003-04-29 | Mechanical sander |
AU2003240472A AU2003240472A1 (en) | 2002-05-02 | 2003-04-29 | Sanding machine |
DE60304179T DE60304179T2 (en) | 2002-05-02 | 2003-04-29 | grinding machine |
EP03729948A EP1503881B1 (en) | 2002-05-02 | 2003-04-29 | Sanding machine |
US10/511,330 US7101270B2 (en) | 2002-05-02 | 2003-04-29 | Sanding machine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITVI2002A000080 | 2002-05-02 | ||
IT2002VI000080A ITVI20020080A1 (en) | 2002-05-02 | 2002-05-02 | SANDING MACHINE |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003092956A1 true WO2003092956A1 (en) | 2003-11-13 |
Family
ID=29287884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/004474 WO2003092956A1 (en) | 2002-05-02 | 2003-04-29 | Sanding machine |
Country Status (9)
Country | Link |
---|---|
US (1) | US7101270B2 (en) |
EP (1) | EP1503881B1 (en) |
AT (1) | ATE320878T1 (en) |
AU (1) | AU2003240472A1 (en) |
BR (1) | BR0309763A (en) |
DE (1) | DE60304179T2 (en) |
ES (1) | ES2259763T3 (en) |
IT (1) | ITVI20020080A1 (en) |
WO (1) | WO2003092956A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1782920A1 (en) | 2005-11-08 | 2007-05-09 | Olimpia 80 SRL | System for satin finishing of sheet metal by means of mechanically fixed flap wheels |
ITLI20080008A1 (en) * | 2008-08-18 | 2010-02-19 | Mauro Cappello | LOCKING SYSTEM, USING SPECIAL NEEDLES APPLIED TO THE DRIVING PLANS OF MACHINE TOOLS, FOR THE SURFACE PROCESSING OF WOODEN LISTS AND OTHER MATERIALS. |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8801505B2 (en) | 2010-06-29 | 2014-08-12 | Awi Licensing Company | Abrading device and method of abrading a floor structure utilizing the same |
US10072427B2 (en) | 2010-06-29 | 2018-09-11 | Afi Licensing Llc | Abrading device and method of abrading a floor structure utilizing the same |
US8771037B2 (en) | 2011-05-20 | 2014-07-08 | Columbia Insurance Company | Pattern sander device, system and method |
ITBO20120364A1 (en) * | 2012-07-04 | 2014-01-05 | E M C S R L | MACHINE FOR FINISHING OF SEMI-FINISHED PIECES. |
PT3172013T (en) * | 2014-07-24 | 2018-05-25 | Toncelli Luca | Method for smoothing and/or polishing slabs of stone or stone-like material |
DE102016117992A1 (en) * | 2016-09-23 | 2018-03-29 | Karl Heesemann Maschinenfabrik Gmbh & Co Kg | grinding machine |
DE102016117994A1 (en) * | 2016-09-23 | 2018-03-29 | Karl Heesemann Maschinenfabrik Gmbh & Co. Kg | grinding machine |
DE102016117991A1 (en) * | 2016-09-23 | 2018-03-29 | Karl Heesemann Maschinenfabrik Gmbh & Co Kg | grinding machine |
KR20180072961A (en) * | 2016-12-22 | 2018-07-02 | 삼성전자주식회사 | Metal plate, patterning apparatus and patterning method using this same |
CN108044434A (en) * | 2018-02-02 | 2018-05-18 | 柳州市鹏森木业加工有限公司 | A kind of timber sander of automatic feed/discharge |
CN112917336B (en) * | 2021-01-25 | 2022-12-20 | 贵州坤源工贸发展有限公司 | Processing equipment for black crystal plate of electromagnetic oven |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2948087A (en) * | 1958-11-03 | 1960-08-09 | Reproduction Res Lab Inc | Plate graining apparatus |
US3229423A (en) * | 1962-09-19 | 1966-01-18 | John Blake Ltd | Cleaning apparatus |
EP0336058A1 (en) * | 1988-03-25 | 1989-10-11 | Nippon CMK Corp. | An apparatus for surface grinding of planar members |
BE1002363A7 (en) * | 1988-08-17 | 1991-01-15 | Colot Paul | Engine for carrying out and implementing a polished and permanent cleft in arock material and for producing polished lines on rock material. Part: arcand line segments |
EP0499334A1 (en) * | 1991-02-14 | 1992-08-19 | Linden Machines B.V. | Surface processing device |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1732695A (en) * | 1926-08-16 | 1929-10-22 | Edward Ford Plate Glass Compan | Glass-polishing apparatus |
US1872694A (en) * | 1928-09-26 | 1932-08-23 | Libbey Owens Ford Glass Co | Apparatus for surfacing sheet glass |
US2420876A (en) * | 1945-02-07 | 1947-05-20 | Freud Ernest | Machine for surface finishing action on materials |
US2865142A (en) * | 1955-07-14 | 1958-12-23 | Libbey Owens Ford Glass Co | Apparatus for surfacing glass sheets |
US2946087A (en) * | 1957-07-26 | 1960-07-26 | Continental Diamond Fibre Corp | Apparatus and method for calendering plastic sheet material |
US3208187A (en) * | 1963-12-10 | 1965-09-28 | Ernst Paul | Apparatus for working on plate-shaped workpieces in conjunction with a machining tool |
IT1169618B (en) * | 1983-10-27 | 1987-06-03 | Dmc Div Mecc Cast | SANDING MACHINE FOR WOOD PANELS |
US5339596A (en) * | 1992-11-04 | 1994-08-23 | Cohen Zev B | Toner cartridge recharging tool |
-
2002
- 2002-05-02 IT IT2002VI000080A patent/ITVI20020080A1/en unknown
-
2003
- 2003-04-29 EP EP03729948A patent/EP1503881B1/en not_active Expired - Lifetime
- 2003-04-29 ES ES03729948T patent/ES2259763T3/en not_active Expired - Lifetime
- 2003-04-29 AT AT03729948T patent/ATE320878T1/en not_active IP Right Cessation
- 2003-04-29 US US10/511,330 patent/US7101270B2/en not_active Expired - Fee Related
- 2003-04-29 DE DE60304179T patent/DE60304179T2/en not_active Expired - Lifetime
- 2003-04-29 WO PCT/EP2003/004474 patent/WO2003092956A1/en not_active Application Discontinuation
- 2003-04-29 AU AU2003240472A patent/AU2003240472A1/en not_active Abandoned
- 2003-04-29 BR BR0309763-3A patent/BR0309763A/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2948087A (en) * | 1958-11-03 | 1960-08-09 | Reproduction Res Lab Inc | Plate graining apparatus |
US3229423A (en) * | 1962-09-19 | 1966-01-18 | John Blake Ltd | Cleaning apparatus |
EP0336058A1 (en) * | 1988-03-25 | 1989-10-11 | Nippon CMK Corp. | An apparatus for surface grinding of planar members |
BE1002363A7 (en) * | 1988-08-17 | 1991-01-15 | Colot Paul | Engine for carrying out and implementing a polished and permanent cleft in arock material and for producing polished lines on rock material. Part: arcand line segments |
EP0499334A1 (en) * | 1991-02-14 | 1992-08-19 | Linden Machines B.V. | Surface processing device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1782920A1 (en) | 2005-11-08 | 2007-05-09 | Olimpia 80 SRL | System for satin finishing of sheet metal by means of mechanically fixed flap wheels |
ITLI20080008A1 (en) * | 2008-08-18 | 2010-02-19 | Mauro Cappello | LOCKING SYSTEM, USING SPECIAL NEEDLES APPLIED TO THE DRIVING PLANS OF MACHINE TOOLS, FOR THE SURFACE PROCESSING OF WOODEN LISTS AND OTHER MATERIALS. |
Also Published As
Publication number | Publication date |
---|---|
ITVI20020080A1 (en) | 2003-11-03 |
ATE320878T1 (en) | 2006-04-15 |
EP1503881B1 (en) | 2006-03-22 |
AU2003240472A1 (en) | 2003-11-17 |
DE60304179T2 (en) | 2007-03-29 |
US7101270B2 (en) | 2006-09-05 |
EP1503881A1 (en) | 2005-02-09 |
US20050164614A1 (en) | 2005-07-28 |
ES2259763T3 (en) | 2006-10-16 |
BR0309763A (en) | 2005-02-15 |
DE60304179D1 (en) | 2006-05-11 |
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