EP1625914B1 - Satin finishing system with flap wheels for shaped tubes - Google Patents
Satin finishing system with flap wheels for shaped tubes Download PDFInfo
- Publication number
- EP1625914B1 EP1625914B1 EP20050017257 EP05017257A EP1625914B1 EP 1625914 B1 EP1625914 B1 EP 1625914B1 EP 20050017257 EP20050017257 EP 20050017257 EP 05017257 A EP05017257 A EP 05017257A EP 1625914 B1 EP1625914 B1 EP 1625914B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- satin finishing
- flap wheels
- tube
- finishing system
- satin
- 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.)
- Not-in-force
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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
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
- B24B29/02—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces
- B24B29/06—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces for elongated workpieces having uniform cross-section in one main direction
Definitions
- the present invention refers to a satin finishing system with flap wheels for shaped tubes which comprises at least one station equipped with at least one set of flap wheels with a vertical axis, at least one station equipped with at least one set of flap wheels with a horizontal axis, means designed to rotate the sets of flap wheels, means designed to slide the tube being processed longitudinally through said stations and means designed to move the tube to be processed transversally to its direction of travel.
- each finishing station comprises a pair of opposed finishing heads, each of which comprises a ring of abrasive cloth carried by a drive roller and a roller which holds the abrasive cloth in contact with the surface to be processed.
- the finishing heads are positioned vertically and simultaneously process the two opposite sides of a shaped tube made to pass in a per se known manner between the finishing heads.
- US 5 901 400 A discloses a satin finishing system with flap wheels for shaped tubes moveable on a bed of rollers with horizontal axes, mounted idly and carried by a support, comprising, in combination with each other:
- the object of the present invention is to overcome the abovementioned limits and/or drawbacks presented by the systems of the prior art, allowing all sides of a shaped tube to be “treated” in a single “pass” - with a consistently homogeneous surface finish - and the tube to be air-cooled: this allows a drastic reduction in processing times and costs.
- Figure 1 shows diagrammatically a side view of a satin finishing system according to the invention, which comprises, in combination with each other:
- flap wheels (5, 7) may be replaced by grinding wheels or any other equivalent abrasive means, provided it is different from abrasive cloths.
- the tube 3 can be cooled during processing by means of jets of air issuing from delivery nozzles 10 placed upstream of each satin finishing station (4, 6): the use of water of cooling means and the consequent formation of sludge are thus avoided and it is possible to use a dust suction system, of which only the suction openings 11, situated level with each satin finishing station (4, 6), can be seen in Figure 1 .
- the tube 3 is a square tube (square or rectangular in section) but, without departing from the scope of the invention, the tube 3 can be polygonal in section (for example hexagonal) and the satin finishing system further comprises at least one satin finishing station (omitted in Figure 1 ) equipped with at least one set of flap wheels with an inclined axis.
- Figures 2 and 3 show diagrammatically a front, partially sectional view and a side view of a satin finishing station 4 equipped with two sets 20 of flap wheels 5 with a horizontal axis.
- a satin finishing station 4 comprises a supporting element 23, fixed to the support 2 of Figure 1 , which cantileverly carries two slides (24, 25) each of which carries a set 20 of flap wheels 5 with a horizontal axis, mounted on a shaft 21 set in rotation by a motor 22.
- the slides (24, 25) are connected to the supporting element 23 by means 26 designed to move each slide (24, 25) vertically; each set 20 of flap wheels 5 is connected to the relative slide (24, 25) by means 27 designed to make the set 20 slide horizontally along the respective slide (24, 25).
- each slide (24, 25) along the supporting element 23, and each set 20 of flap wheels 5 along the relative slide (24, 25) will not be described, however, because they are per se known; these means can be hydraulic or pneumatic or else they can consist of threaded couplings moved, by means of a screw and screw-nut coupling, by threaded shafts driven by a motor.
- Figures 4 and 5 show diagrammatically a front, partially sectional view and a side view of one of the satin finishing stations 6, which comprises a pair of supporting elements 33, fixed to the support 302, each of which carries a set 30 of flap wheels 7 with a vertical axis, mounted on a shaft 31 set in rotation by a motor 32.
- Each supporting element 33 is connected to the support 302 by means 36 designed to move it horizontally with respect to the support 2; each set 30 of flap wheels 7 is connected to the relative supporting element 33 by means 37 designed to make the set 30 slide vertically along the supporting element 33.
- the satin finishing station 6 is similar to a station 4 and - in Figures 4 and 5 - the corresponding elements are indicated with the reference numerals used in Figures 2 and 3 increased by 10.
- the height of the support 302 is such that, when the sets 30 of flap wheels 7 are completely lowered, the top area of the sets 30 is in contact with the tube 3.
- the vertical movement of the sets 20, and the horizontal movement of the sets 30 allows the distance between the sets 20 and 30, respectively, to be adapted to the size of the tube 3 to be processed, and the flap wheels 5 and 7, respectively, to be kept in contact with the tube 3, compensating for wear on said wheels during the satin finishing process.
- the sets (20, 30) comprise a plurality of flap wheels (5, 7) of different thickness, each of which has a thickness corresponding to that of one of the tubes 3 to be processed: the horizontal movement of the sets 20, and the vertical movement of the sets 30 allows the tube 3 to be brought level with the flap wheels (5, 7) having a working height corresponding to that of the tube 3, thus wearing only said flap wheels (5, 7).
- Figure 6 shows diagrammatically a front view and a side view of one of the stations 8 of Figure 1 designed to feed the tube 3 to be processed longitudinally; said station is advantageously made by means of an assembly known to the art as a pinch roll and therefore will not be described herein.
- Figure 7 shows diagrammatically a front view and a side view of one of the carriages 9 of figure 1 , designed to move the tube 3 to be processed transversally to its direction of travel.
- the carriage 9 comprises a pair of idle rollers 70, with a vertical axis, carried by a base 71 on which they can be moved transversally to the direction of travel of the tube 3 by means of movement means 72 not described herein because they are known to the art or in any case can be implemented by a person skilled in the art without inventive activity.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Treatment Of Fiber Materials (AREA)
Description
- The present invention refers to a satin finishing system with flap wheels for shaped tubes which comprises at least one station equipped with at least one set of flap wheels with a vertical axis, at least one station equipped with at least one set of flap wheels with a horizontal axis, means designed to rotate the sets of flap wheels, means designed to slide the tube being processed longitudinally through said stations and means designed to move the tube to be processed transversally to its direction of travel.
- In order to satin finish or polish a shaped tube, systems with abrasive cloths are currently used, in which each finishing station comprises a pair of opposed finishing heads, each of which comprises a ring of abrasive cloth carried by a drive roller and a roller which holds the abrasive cloth in contact with the surface to be processed.
- The finishing heads are positioned vertically and simultaneously process the two opposite sides of a shaped tube made to pass in a per se known manner between the finishing heads.
- Systems of the prior art present numerous limits and/or drawbacks, amongst which:
- processing of the shaped tube must take place in two stages: after having processed two sides of the shaped tube, it is necessary to stop the system, cause the tube to move back (or, in any case, bring it back) to the input to the system and rotate it to process another two sides; all this considerably lengthens processing times, reducing the productivity of the system;
- the abrasive cloths wear very rapidly, drastically reducing their removal capacity and no longer ensuring the initial level of finishing: it is therefore necessary to stop the system often to replace worn cloths, which can sometimes by re-used in the finishing heads that perform rougher finishing;
- the heat produced during processing of the tube by the abrasive cloths makes it necessary to cool the tube with water, with the consequent formation of sludge, which must be removed.
-
US 5 901 400 A discloses a satin finishing system with flap wheels for shaped tubes moveable on a bed of rollers with horizontal axes, mounted idly and carried by a support, comprising, in combination with each other: - at least one satin finishing station equipped with at least on set of flap wheels with a horizontal axis;
- means designed to set in rotation the sets of flap wheels;
- at least one feed station, designed to feed the tube to be processed along the roller bed.
- The object of the present invention is to overcome the abovementioned limits and/or drawbacks presented by the systems of the prior art, allowing all sides of a shaped tube to be "treated" in a single "pass" - with a consistently homogeneous surface finish - and the tube to be air-cooled: this allows a drastic reduction in processing times and costs.
- This object is achieved by means of a satin finishing system produced according to the present invention, which has the characterising features illustrated in claim 1; further advantageous characteristics of the invention form the subject matter of the dependent claims.
- Further characteristics of the invention will be made clearer by the detailed description that follows, referring to a purely exemplifying and therefore non-limiting embodiment thereof, illustrated in the appended drawings, in which:
-
Figure 1 shows diagrammatically a side view of a satin finishing system according to the invention; -
Figures 2 e 3 show diagrammatically a front, partially sectional view and a side view of one of the satin finishing stations with ahorizontal axis 4 ofFigure 1 ; -
Figures 4 and5 show diagrammatically a front, partially sectional view and a side view of one of the satin finishing stations with avertical axis 6 ofFigure 1 . -
Figure 6 shows diagrammatically a front view and a side view of one of thefeed stations 8 offigure 1 , designed to feed the tube to be processed longitudinally; -
Figure 7 shows diagrammatically a front view and a side view of one of thecarriages 9 ofFigure 1 , designed to move the tube to be processed transversally to its direction of travel. - In the attached figures like elements will be identified by the same reference numerals wherever possible.
-
Figure 1 shows diagrammatically a side view of a satin finishing system according to the invention, which comprises, in combination with each other: - a bed of rollers 1 with horizontal axes, mounted idly and carried by a
support 2, on which slides ashaped tube 3 to be processed: the roller bed 1, thesupport 2 and thetube 3 will not be described because they are per se known; - at least one satin finishing station 4 (better described with reference to
Figures 2 and3 ) equipped with at least one set 20 (Figures 2 and3 ) offlap wheels 5 with a horizontal axis; inFigure 1 sixsatin finishing stations 4 which perform an increasingly high finish are shown; - at least one satin finishing station 6 (described better with reference to
Figures 4 and5 ) equipped with at least one set 30 (Figures 4 and5 ) offlap wheels 7 with a vertical axis; inFigure 1 sixsatin finishing stations 6 which perform an increasingly high finish are shown; - means (21, 22; 31, 32) designed to set the sets (20, 30) of flap wheels (5, 7) in rotation;
- at least one
feed station 8, seen better inFigure 6 , designed to feed thetube 3 to be processed longitudinally along the roller bed 1; - at least one
carriage 9, placed downstream of the at least onefeed station 8 and seen better inFigure 7 , designed to move thetube 3 to be processed transversally to its direction of travel and hold it in position between thesets 20 offlap wheels 5 with a horizontal axis of thesatin finishing stations 4. - Without departing from the scope of the invention, the flap wheels (5, 7) may be replaced by grinding wheels or any other equivalent abrasive means, provided it is different from abrasive cloths.
- At the start and at the end of the roller bed 1 and between the two adjacent satin finishing stations (4, 6) there are preferably a
feed station 8 and acarriage 9. - Furthermore, since the heat produced during processing of the tube by means of the flap wheels (5, 7) is less than that developed by the abrasive cloths of a traditional system, the
tube 3 can be cooled during processing by means of jets of air issuing fromdelivery nozzles 10 placed upstream of each satin finishing station (4, 6): the use of water of cooling means and the consequent formation of sludge are thus avoided and it is possible to use a dust suction system, of which only thesuction openings 11, situated level with each satin finishing station (4, 6), can be seen inFigure 1 . - For simplicity of the graphic representation, only one of the
satin finishing stations 4 with a vertical axis, one with a horizontal axis resting on asupport 302, one of thefeed stations 8, acarriage 9, anair delivery nozzle 10 and adust suction nozzle 11 are identified with reference numerals inFigure 1 . - In
Figure 1 thetube 3 is a square tube (square or rectangular in section) but, without departing from the scope of the invention, thetube 3 can be polygonal in section (for example hexagonal) and the satin finishing system further comprises at least one satin finishing station (omitted inFigure 1 ) equipped with at least one set of flap wheels with an inclined axis. -
Figures 2 and3 show diagrammatically a front, partially sectional view and a side view of asatin finishing station 4 equipped with twosets 20 offlap wheels 5 with a horizontal axis. - A
satin finishing station 4 comprises a supportingelement 23, fixed to thesupport 2 ofFigure 1 , which cantileverly carries two slides (24, 25) each of which carries aset 20 offlap wheels 5 with a horizontal axis, mounted on ashaft 21 set in rotation by amotor 22. - The slides (24, 25) are connected to the supporting
element 23 bymeans 26 designed to move each slide (24, 25) vertically; eachset 20 offlap wheels 5 is connected to the relative slide (24, 25) bymeans 27 designed to make theset 20 slide horizontally along the respective slide (24, 25). - The means (26, 27) designed to move each slide (24, 25) along the supporting
element 23, and each set 20 offlap wheels 5 along the relative slide (24, 25) will not be described, however, because they are per se known; these means can be hydraulic or pneumatic or else they can consist of threaded couplings moved, by means of a screw and screw-nut coupling, by threaded shafts driven by a motor. -
Figures 4 and5 show diagrammatically a front, partially sectional view and a side view of one of thesatin finishing stations 6, which comprises a pair of supportingelements 33, fixed to thesupport 302, each of which carries a set 30 offlap wheels 7 with a vertical axis, mounted on ashaft 31 set in rotation by amotor 32. - Each supporting
element 33 is connected to thesupport 302 bymeans 36 designed to move it horizontally with respect to thesupport 2; each set 30 offlap wheels 7 is connected to the relative supportingelement 33 bymeans 37 designed to make the set 30 slide vertically along the supportingelement 33. - The
satin finishing station 6 is similar to astation 4 and - inFigures 4 and5 - the corresponding elements are indicated with the reference numerals used inFigures 2 and3 increased by 10. - As can be seen from
Figures 4 and5 , the height of thesupport 302 is such that, when the sets 30 offlap wheels 7 are completely lowered, the top area of the sets 30 is in contact with thetube 3. - The vertical movement of the
sets 20, and the horizontal movement of the sets 30 allows the distance between thesets 20 and 30, respectively, to be adapted to the size of thetube 3 to be processed, and theflap wheels tube 3, compensating for wear on said wheels during the satin finishing process. - In the preferred embodiment illustrated in
Figures 2-5 , the sets (20, 30) comprise a plurality of flap wheels (5, 7) of different thickness, each of which has a thickness corresponding to that of one of thetubes 3 to be processed: the horizontal movement of thesets 20, and the vertical movement of the sets 30 allows thetube 3 to be brought level with the flap wheels (5, 7) having a working height corresponding to that of thetube 3, thus wearing only said flap wheels (5, 7). - The fact of forming sets (20, 30) by means of flap wheels (5, 7) of different thickness and of moving the sets (20, 30) with respect to the
tube 3 allows the wear to be divided between the various flap wheels (5, 7) belonging to the groups (20, 30) according to the sizes of thetubes 3 processed each time. - The above is economically advantageous because it allows only the flap wheels (5, 7) actually worn to be replaced, whilst in systems of the prior art wear is divided unevenly and is concentrated in the area always in contact with the tube, regardless of the size of said tube.
- To compensate for the wear on the flap wheels (5 and 7, respectively) in contact each time with the
tube 3 and keep their peripheral speed constant, advantageously the speed of rotation of the set (20 and 30, respectively) to which said flap wheels (5 and 7, respectively) belong is increased. -
Figure 6 shows diagrammatically a front view and a side view of one of thestations 8 ofFigure 1 designed to feed thetube 3 to be processed longitudinally; said station is advantageously made by means of an assembly known to the art as a pinch roll and therefore will not be described herein. -
Figure 7 shows diagrammatically a front view and a side view of one of thecarriages 9 offigure 1 , designed to move thetube 3 to be processed transversally to its direction of travel. - The
carriage 9 comprises a pair ofidle rollers 70, with a vertical axis, carried by abase 71 on which they can be moved transversally to the direction of travel of thetube 3 by means of movement means 72 not described herein because they are known to the art or in any case can be implemented by a person skilled in the art without inventive activity. - Without departing from the scope of the invention, a person skilled in the art can make to the satin finishing system described above all the changes and improvements suggested by normal experience and/or the natural evolution of the art.
Claims (14)
- A satin finishing system with flap wheels (5, 7) for shaped tubes (3) moveable on a bed of rollers (1) with horizontal axes, mounted idly and carried by a support (2), characterised in that it comprises, in combination with each other:- at least one satin finishing station (4) equipped with at least on set (20) of flap wheels (5) with a horizontal axis;- at least one satin finishing station (6) equipped with at least one set (30) of flap wheels (7) with a vertical axis;- means (21, 22; 31, 32) designed to set in rotation the sets (20, 30) of flap wheels (5, 7);- at least one feed station (8), designed to feed the tube (3) to be processed along the roller bed (1);- at least one carriage (9), placed downstream of the at least one feed station (8) and designed to move the tube (3) to be processed transversally to the direction of feed thereof and hold it in position between the sets (20) of flap wheels (5) with a horizontal axis belonging to the satin finishing stations (4).
- A satin finishing system according to claim 1 for shaped tubes (3) with a polygonal section, characterised in that it further comprises at least one satin finishing station equipped with at least one set of flap wheels with an inclined axis.
- A satin finishing system according to claim 1, characterised in that at the start and end of the roller bed (1) and between two adjacent satin finishing stations (4, 6) there are a feed station (8) and a carriage (9).
- A satin finishing system according to claim 1 or 2, characterised in that, during processing of the tube (3), it is cooled by means of jets of air.
- A satin finishing system according to claim 1 or 2, characterised in that the tube (3) is cooled by jets of air issuing from nozzles (10) situated upstream of each satin finishing station (4, 6).
- A satin finishing system according to claim 1 or 2, characterised in that it further comprises a dust suction system having suction openings (11) placed level with each satin finishing station (4, 6).
- A satin finishing system according to claim 1, characterised in that each satin finishing system (4) comprises a supporting element (23), fixed to the support (2), which carries projectingly two slides (24, 25) each of which carries a set (20) of flap wheels (5) with a horizontal axis; in that the slides (24, 25) are connected to the supporting element (23) by means (26) designed to move each slide (24, 25) vertically and in that each set (20) of flap wheels (5) is connected to the relative slide (24, 25) by means (27) designed to make the set (20) slide along the respective slide (24, 25).
- A satin finishing system according to claim 1, characterised in that each satin finishing station (6) comprises a pair of supporting elements (33), fixed to a support (302), each of which carries a set (30) of flap wheels (7) with a vertical axis, in that the supporting elements (33) are connected to the support (302) by means (36) designed to move them horizontally with respect to the support (302) and in that each set (30) of flap wheels (7) is connected to the relative supporting element (33) by means (37) able to make the set (30) slide vertically along the supporting element (33).
- A satin finishing system according to claim 8, characterised in that the height of the support (302) is such that, when the sets (30) of flap wheels (7) are completely lowered, the top area of the sets (30) is in contact with the tube (3).
- A satin finishing system according to claim 7 o 8, characterised in that each set (20, 30) of flap wheels (5, 7) is mounted on a shaft (21, 31) set in rotation by a motor (22, 32).
- A satin finishing system according to claim 1, characterised in that the sets (20, 30) comprise a plurality of flap wheels (5, 7) of different thickness, the thickness of each flap wheel (5, 7) corresponding to that of one of the tubes (3) to be processed.
- A satin finishing system according to claim 11, characterised in that the horizontal movement of the sets (20) and the vertical movement of the sets (30) allow the tube (3) to be brought level with the flap wheels (5, 7) having a thickness corresponding to that of the tube (3).
- A satin finishing system according to claim 1, characterised in that the at least one carriage (9) comprises a pair of idle rollers (70), with a vertical axis, carried by a base (71) on which they can be moved transversally with respect to the direction of travel of the tube (3) by movement means (72).
- A satin finishing system according to claim 1 or 11, characterised in that, to compensate for the wear on the flap wheels (5 and 7, respectively) in contact each time with the tube (3) and keep their peripheral speed constant, the speed of rotation of the set (20 and 30, respectively) to which said flap wheels (5 and 7, respectively) belong is increased.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI20041641 ITMI20041641A1 (en) | 2004-08-10 | 2004-08-10 | LAMELLAR WHEELS SATINING SYSTEM FOR SHAPED TUBES |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1625914A2 EP1625914A2 (en) | 2006-02-15 |
EP1625914A3 EP1625914A3 (en) | 2006-06-07 |
EP1625914B1 true EP1625914B1 (en) | 2014-01-01 |
Family
ID=35295455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20050017257 Not-in-force EP1625914B1 (en) | 2004-08-10 | 2005-08-09 | Satin finishing system with flap wheels for shaped tubes |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1625914B1 (en) |
ES (1) | ES2454547T3 (en) |
IT (1) | ITMI20041641A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2323828B1 (en) * | 2007-03-02 | 2010-06-04 | Maquinaria Electronica, Esmerilado Y Pulido, S.A. | MACHINE FOR THE GRINDING, POLISHING AND SATINING OF METAL TUBES AND PLATES. |
ITMI20080016A1 (en) * | 2008-01-08 | 2009-07-09 | Olimpia 80 Srl | MACHINE TO REMOVE THE WELDING CORD FROM CONTINUOUS WELDED TUBES |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0679611A (en) * | 1992-09-02 | 1994-03-22 | Nisshin Steel Co Ltd | Method for polishing stainless steel pipe |
DE19652510C2 (en) * | 1996-12-17 | 2003-06-12 | Peter Auer Gmbh | Machine and method for the surface treatment of elongate objects |
US5901400A (en) * | 1997-04-09 | 1999-05-11 | Omni Technical Products, Inc. | Brushing apparatus |
ITMI20020684A1 (en) * | 2002-04-02 | 2003-10-02 | Olimpia 80 Srl | EQUIPMENT AND PROCEDURE FOR SURFACE FINISHING OF TUBES VIA FLAP WHEELS |
-
2004
- 2004-08-10 IT ITMI20041641 patent/ITMI20041641A1/en unknown
-
2005
- 2005-08-09 EP EP20050017257 patent/EP1625914B1/en not_active Not-in-force
- 2005-08-09 ES ES05017257T patent/ES2454547T3/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP1625914A3 (en) | 2006-06-07 |
ES2454547T3 (en) | 2014-04-10 |
EP1625914A2 (en) | 2006-02-15 |
ITMI20041641A1 (en) | 2004-11-10 |
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