EP2536516B1 - Apparatus for cleaning, by abrasion, rod and the like with scale crust and surface oxide - Google Patents
Apparatus for cleaning, by abrasion, rod and the like with scale crust and surface oxide Download PDFInfo
- Publication number
- EP2536516B1 EP2536516B1 EP11701098.3A EP11701098A EP2536516B1 EP 2536516 B1 EP2536516 B1 EP 2536516B1 EP 11701098 A EP11701098 A EP 11701098A EP 2536516 B1 EP2536516 B1 EP 2536516B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spindle
- supporting
- rod
- rollers
- rotating body
- 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.)
- Active
Links
- 238000004140 cleaning Methods 0.000 title claims description 10
- 238000005299 abrasion Methods 0.000 title claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 12
- 239000004744 fabric Substances 0.000 claims description 12
- 238000012545 processing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 230000020347 spindle assembly Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C43/00—Devices for cleaning metal products combined with or specially adapted for use with machines or apparatus provided for in this subclass
- B21C43/02—Devices for cleaning metal products combined with or specially adapted for use with machines or apparatus provided for in this subclass combined with or specially adapted for use in connection with drawing or winding machines or apparatus
- B21C43/04—Devices for de-scaling wire or like flexible work
-
- 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
- B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
-
- 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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/04—Protective covers for the grinding wheel
Definitions
- the present invention refers to an apparatus for cleaning, by abrasion, rod and the like with scale crust and surface oxide.
- mechanical systems such as scaling with elongation of the outer surface of the rod and consequent detachment of the crust, brushing of the surfaces with steel wire brushes, surface sandblasting and the like.
- the system that is currently most widely used is implemented by means of an abrasive cloth that renders all of the surface cleaned of oxides and scales, resulting in a surface that is highly compatible with the subsequent drawing operations with powder lubricants.
- the most widely used solution for processing the mechanical wire involves inserting the wire or rod into an unwinding system that passes through a hollow shaft and is pulled, at a known speed, by a device located downstream.
- abrasive cloth supporting spindles are used that rotate about the wire and which are made to scrape against it with an abrasive effect at a suitable working speed.
- conventional machines are provided with two spindles which are positioned at the ends of the machine-body and, in practice, are made up of a central body that carries the two spindles at its ends.
- the rotation commands are made on the central axis and by means of central transmissions, which put the two spindles into rotation.
- This type of equipment suffers the drawback that the maintenance is particularly difficult with regard to the transmissions and, in addition, this type of equipment is considerably difficult to balance properly.
- Another negative aspect consists in that major difficulties are encountered in keeping the abrasive cloth centred on the axis of the wire, with additional difficulties in keeping the cloth centred on the supporting rollers.
- a further negative aspect consists in that the central supports are critically important for their maintenance and design, since they are subjected to loads and vibrations that are difficult to control, owing to the presence of dynamic instruments or of different dimensions of the abrasive cloth.
- the aim of the invention is to solve the aforementioned problems, by providing an apparatus for cleaning, by abrasion, rod and the like with scale crust and surface oxide, that makes it possible to considerably simplify the transmissions of movement both of the central shaft and of the rollers for pulling the cloths, by locating the two spindles closer to each other.
- an object of the invention is to provide an apparatus that is simple with regard to balancing and which has self-aligned support bearings in order to reduce vibrations.
- Another object of the present invention is to provide an apparatus that allows a rapid and simple assembly and dismantling of the entire apparatus, and which moreover offers immediate accessibility to the area of intervention by the operator, who can easily carry out all operations such as threading the wire, changing the abrasive cloth, centring the abrasive cloths, tensioning the abrasive cloths, further offering complete visual accessibility to all of the work zone from a single position.
- a further object of the present invention is to provide an apparatus wherein the configuration and the correction of the parallelism of the rollers that support the abrasive cloths is easy and effective in such a way that, once set, it remains in place independently of the speed of rotation.
- a further object of the present invention is to provide an apparatus for cleaning, by abrasion, rod and the like with scale crust and surface oxide that, thanks to its distinctive implementation characteristics, is capable of offering the widest guarantees of reliability and safety in use.
- the apparatus for cleaning, by abrasion, rod and the like with scale crust and surface oxide comprises a supporting frame 2 on which an assembly 3 is provided for unwinding a wire or rod which is inserted into a central shaft, indicated with the reference numeral 10 and which passes inside a rotating body, indicated with the reference numeral 11 and which supports a first spindle 20 and a second spindle 21, which are integrally connected and mutually opposing, in that they are directed toward each other and are each supported by a supporting disk, indicated with the reference numeral 22.
- the disks 22 are connected to a central support 23, which is integrally defined inside the apparatus and which is obtained with cradle-like seats, at a work zone 30, which can be closed from above by an openable cover 31 which, in practice, closes the fairing that defines the frame.
- the supporting disks 22 are joined by tension members 25 which render the two spindles mutually integral.
- a first motor 40 is provided for turning the spindles, such motor, by means of a belt transmission mechanism 41, is connected to a lower transmission shaft 42 which is connected to a second transmission mechanism 43 which is connected to the other spindle.
- the motor is able of simultaneously actuating the rotation of the rollers 26 of both spindles, which support an abrasive cloth 27.
- Another motor 50 is provided, which rotates about the axis of the rotating body and which, by way of a transmission through the central body 51, puts the rotating body 11 in rotation on the support 23.
- supporting arms 60 are provided which, in practice, make the parallelism rigid between the two rollers for pulling the abrasive cloths, and are unaffected by centrifugal effects; moreover, a system for the fine adjustment of the parallelism of the rollers 26 is provided on the arms 60.
- the invention achieves the intended aim and objects, and in particular attention is drawn to the fact that an apparatus is provided in which the spindle supporting assembly is monolithic and has supports at its ends, hence it is not subject to imbalances, and it has a rigid parallelism between the rollers that enables an optimal positioning of the cloths and improved working conditions.
- the positioning of the rollers inside the transmission assemblies makes it possible to reduce the distance between one spindle assembly and the other, thereby minimizing the processing defects that are due to torsion of the wire.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Treatment Of Fiber Materials (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Description
- The present invention refers to an apparatus for cleaning, by abrasion, rod and the like with scale crust and surface oxide.
- It is well known that to draw a rod or wire originating from hot-rolling processing, it is essential to remove the scale that forms during the cooling process and any surface oxide that may form during storage and transport.
- Nowadays, in order to carry out the surface cleaning, a chemical pickling is performed using acids that dissolve the oxide. This system, which is the most commonly used, especially for wires that are highly resistant and which therefore have a high carbon content, suffer the drawback of being very pollutant and expensive, and hence there is a pressing need to use alternative systems.
- To this end, as an alternative to the chemical process, mechanical systems are used, such as scaling with elongation of the outer surface of the rod and consequent detachment of the crust, brushing of the surfaces with steel wire brushes, surface sandblasting and the like.
- The system that is currently most widely used is implemented by means of an abrasive cloth that renders all of the surface cleaned of oxides and scales, resulting in a surface that is highly compatible with the subsequent drawing operations with powder lubricants.
- The most widely used solution for processing the mechanical wire involves inserting the wire or rod into an unwinding system that passes through a hollow shaft and is pulled, at a known speed, by a device located downstream.
- To carry out the abrasion phase, abrasive cloth supporting spindles are used that rotate about the wire and which are made to scrape against it with an abrasive effect at a suitable working speed.
- In practice, at each rotation of the spindle, a length of wire is cleaned that is equivalent to the width of the abrasive cloth.
- Typically, conventional machines are provided with two spindles which are positioned at the ends of the machine-body and, in practice, are made up of a central body that carries the two spindles at its ends.
- The rotation commands are made on the central axis and by means of central transmissions, which put the two spindles into rotation.
- This type of equipment suffers the drawback that the maintenance is particularly difficult with regard to the transmissions and, in addition, this type of equipment is considerably difficult to balance properly.
- Another negative aspect consists in that major difficulties are encountered in keeping the abrasive cloth centred on the axis of the wire, with additional difficulties in keeping the cloth centred on the supporting rollers.
- The considerable distance between the two spindles, which are arranged opposite each other at the ends, inevitably causes a torsion on the wire in the section between the first spindle and the second spindle, displacing the correct alternation of work of the cloths, with a consequent cleaning that is not homogeneous.
- Moreover, operator intervention is quite complex, because the operator has to check two positions that are distant and distinct from each other, not only for changing the cloths, but also for checking the position of the cloths, and for checking the parallelism of the rollers.
- A further negative aspect consists in that the central supports are critically important for their maintenance and design, since they are subjected to loads and vibrations that are difficult to control, owing to the presence of dynamic instruments or of different dimensions of the abrasive cloth.
- The aim of the invention is to solve the aforementioned problems, by providing an apparatus for cleaning, by abrasion, rod and the like with scale crust and surface oxide, that makes it possible to considerably simplify the transmissions of movement both of the central shaft and of the rollers for pulling the cloths, by locating the two spindles closer to each other.
- Within this aim, an object of the invention is to provide an apparatus that is simple with regard to balancing and which has self-aligned support bearings in order to reduce vibrations.
- Another object of the present invention is to provide an apparatus that allows a rapid and simple assembly and dismantling of the entire apparatus, and which moreover offers immediate accessibility to the area of intervention by the operator, who can easily carry out all operations such as threading the wire, changing the abrasive cloth, centring the abrasive cloths, tensioning the abrasive cloths, further offering complete visual accessibility to all of the work zone from a single position.
- A further object of the present invention is to provide an apparatus wherein the configuration and the correction of the parallelism of the rollers that support the abrasive cloths is easy and effective in such a way that, once set, it remains in place independently of the speed of rotation.
- A further object of the present invention is to provide an apparatus for cleaning, by abrasion, rod and the like with scale crust and surface oxide that, thanks to its distinctive implementation characteristics, is capable of offering the widest guarantees of reliability and safety in use.
- In accordance with the invention, there is provided an apparatus for cleaning, by abrasion, rod and the like with scale crust and surface oxide, as defined in the appended claims.
- Further characteristics and advantages of the invention will become better apparent from the description of a preferred, but not exclusive, embodiment of an apparatus for cleaning, by abrasion, rod and the like with scale crust and surface oxide, illustrated by way of a non-limiting example in the accompanying drawings wherein:
-
Figure 1 is a front elevation view of the apparatus according to the invention; -
Figure 2 is a plan view of the apparatus; -
Figure 3 is a side elevation view of the apparatus; -
Figure 4 is a sectional view taken along the line IV-IV ofFigure 1 . - With reference to the figures, the apparatus for cleaning, by abrasion, rod and the like with scale crust and surface oxide, according to the invention, generally indicated with the
reference numeral 1, comprises a supportingframe 2 on which anassembly 3 is provided for unwinding a wire or rod which is inserted into a central shaft, indicated with thereference numeral 10 and which passes inside a rotating body, indicated with thereference numeral 11 and which supports afirst spindle 20 and asecond spindle 21, which are integrally connected and mutually opposing, in that they are directed toward each other and are each supported by a supporting disk, indicated with thereference numeral 22. Thedisks 22 are connected to acentral support 23, which is integrally defined inside the apparatus and which is obtained with cradle-like seats, at awork zone 30, which can be closed from above by anopenable cover 31 which, in practice, closes the fairing that defines the frame. - The supporting
disks 22 are joined bytension members 25 which render the two spindles mutually integral. - For the actuation, a
first motor 40 is provided for turning the spindles, such motor, by means of abelt transmission mechanism 41, is connected to alower transmission shaft 42 which is connected to asecond transmission mechanism 43 which is connected to the other spindle. - In this way, the motor is able of simultaneously actuating the rotation of the
rollers 26 of both spindles, which support anabrasive cloth 27. - Another
motor 50 is provided, which rotates about the axis of the rotating body and which, by way of a transmission through thecentral body 51, puts therotating body 11 in rotation on thesupport 23. - With this arrangement all the movements are located outside the rotating body on which the spindles are positioned, while the spindles, which are integrally joined to each other, are opposite and at a reduced mutual distance from each other.
- Moreover, in order to allow an easy alignment of the rollers of the spindles, supporting
arms 60 are provided which, in practice, make the parallelism rigid between the two rollers for pulling the abrasive cloths, and are unaffected by centrifugal effects; moreover, a system for the fine adjustment of the parallelism of therollers 26 is provided on thearms 60. - Moreover it should also be noted that it is possible to have a single
central suction assembly 61, located in the area affected by the spindles, which easily removes all the residues of processing, so preventing the several support bearings from becoming worn. - From the foregoing it can thus be seen how the invention achieves the intended aim and objects, and in particular attention is drawn to the fact that an apparatus is provided in which the spindle supporting assembly is monolithic and has supports at its ends, hence it is not subject to imbalances, and it has a rigid parallelism between the rollers that enables an optimal positioning of the cloths and improved working conditions.
- Moreover, the positioning of the rollers inside the transmission assemblies, which are located at the ends of the hollow central shaft, makes it possible to reduce the distance between one spindle assembly and the other, thereby minimizing the processing defects that are due to torsion of the wire.
- The use of a single work zone gives the operator better control and simplifies both the structure and all the connected operative elements.
- The invention, thus conceived, is susceptible of numerous modifications and variations, all of which are within the scope of the appended claims.
- Moreover, all the details may be substituted by other, technically equivalent elements.
- In practice the materials employed, provided they are compatible with the specific use, as well as the dimensions and the contingent shapes, may be any according to requirements.
- 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 interpretation of each element identified by way of example by such reference signs.
Claims (8)
- An apparatus (1) for cleaning, by abrasion, rod and the like with scale crust and surface oxide, comprising, on a supporting frame (2), an assembly (3) for unwinding a wire or rod (F) on the surface of which a first abrasive cloth supporting spindle (20) and at least one second abrasive cloth supporting spindle (21) act, said first spindle (20) and said at least one second spindle (21) comprising two rollers (26) for supporting and pulling the abrasive cloths, said first spindle (20) and said at least one second spindle (21) being accommodated within a work zone (30) defined by said supporting frame (2), and the apparatus further comprising a hollow central shaft (10) for the passage of said rod or wire (F) within a rotating body (11), which supports said first spindle (20) and said at least one second spindle (21), the apparatus being characterized in that said first spindle (20) and said at least one second spindle (21) are directed toward each other and are integrally connected.
- The apparatus according to claim 1, characterized in that said rotating body (11) comprises, at the axial ends, supporting disks (22) which are joined by tension members (25) and supporting said first spindle (20) and said at least one second spindle (21).
- The apparatus according to one or more of the preceding claims, characterized in that it comprises a single openable cover (31) arranged so as to close said work zone (30).
- The apparatus according to one or more of the preceding claims, characterized in that it comprises a first motor (40) which turns said first spindle (20) and said at least one second spindle (21).
- The apparatus according to claim 4, characterized in that said first motor (40) is connected to said first spindle (20) for the rotation of the rollers (26) that support the abrasive cloth (27) and, by means of a transmission mechanism (41), to a lower transmission shaft (42) connected to a second transmission mechanism (43) for the actuation of the rollers (26) that support the abrasive cloth (27) of said at least one second spindle (21).
- The apparatus according to one or more of the preceding claims, characterized in that it comprises a motor (50) for turning said rotating body (11) by means of a transmission (51) for the rotating body to said rotating body supported by a cradle-like support (23) defined by said supporting frame (2).
- The apparatus according to one or more of the preceding claims, characterized in that it comprises supporting arms (60) for the connection of the end of the rollers (26) of said spindles (20, 21) that lies opposite the end connected to said supporting disks (22).
- The apparatus according to one or more of the preceding claims, characterized in that it comprises a central suction assembly (61) arranged at said work zone (30).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI2010A000259A IT1398072B1 (en) | 2010-02-19 | 2010-02-19 | EQUIPMENT FOR CLEANING, BY ABRASION, BY VERGELLA AND SIMILAR WITH CRUSTA DI SCAGLIA AND SURFACE OXIDE. |
PCT/EP2011/050914 WO2011101204A1 (en) | 2010-02-19 | 2011-01-24 | Apparatus for cleaning, by abrasion, rod and the like with scale crust and surface oxide |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2536516A1 EP2536516A1 (en) | 2012-12-26 |
EP2536516B1 true EP2536516B1 (en) | 2019-02-20 |
Family
ID=42697351
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11701098.3A Active EP2536516B1 (en) | 2010-02-19 | 2011-01-24 | Apparatus for cleaning, by abrasion, rod and the like with scale crust and surface oxide |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2536516B1 (en) |
KR (1) | KR20130041762A (en) |
CN (1) | CN102791393B (en) |
ES (1) | ES2728522T3 (en) |
IT (1) | IT1398072B1 (en) |
WO (1) | WO2011101204A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108637868A (en) * | 2018-06-16 | 2018-10-12 | 南京溧水丽华弹簧厂 | A kind of leaf spring surface processing device |
CN110253400B (en) * | 2019-06-12 | 2021-05-04 | 诸暨绿尚创意科技有限公司 | High-pressure dephosphorization auxiliary device |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0241839A (en) * | 1988-08-02 | 1990-02-13 | Horitani Yoshio | Spindle mechanism for accelerator utilizing steel ball |
CN2078670U (en) * | 1990-08-22 | 1991-06-12 | 国营海红轴承厂 | Grinder for outer ring double channel of double race ball bearing |
CN2350147Y (en) * | 1998-10-24 | 1999-11-24 | 宜兴市金属制品研究所 | Steel wire surface treatment device |
CN201067857Y (en) * | 2007-06-29 | 2008-06-04 | 林小艺 | Abrasive band polishing machine |
WO2009147470A1 (en) * | 2008-06-04 | 2009-12-10 | I.C.M.I. S.R.L. | Plant for the treatment of metallic wires addressed to the drawing operation |
-
2010
- 2010-02-19 IT ITMI2010A000259A patent/IT1398072B1/en active
-
2011
- 2011-01-24 EP EP11701098.3A patent/EP2536516B1/en active Active
- 2011-01-24 CN CN201180009347.7A patent/CN102791393B/en active Active
- 2011-01-24 ES ES11701098T patent/ES2728522T3/en active Active
- 2011-01-24 WO PCT/EP2011/050914 patent/WO2011101204A1/en active Application Filing
- 2011-01-24 KR KR1020127022213A patent/KR20130041762A/en not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
KR20130041762A (en) | 2013-04-25 |
ES2728522T3 (en) | 2019-10-25 |
EP2536516A1 (en) | 2012-12-26 |
WO2011101204A1 (en) | 2011-08-25 |
CN102791393B (en) | 2015-04-01 |
IT1398072B1 (en) | 2013-02-07 |
ITMI20100259A1 (en) | 2011-08-20 |
CN102791393A (en) | 2012-11-21 |
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