EP2070852A2 - Walze zum Leiten und Zentrieren von bandartigem Material und damit verbundene Steuervorrichtung - Google Patents
Walze zum Leiten und Zentrieren von bandartigem Material und damit verbundene Steuervorrichtung Download PDFInfo
- Publication number
- EP2070852A2 EP2070852A2 EP08171084A EP08171084A EP2070852A2 EP 2070852 A2 EP2070852 A2 EP 2070852A2 EP 08171084 A EP08171084 A EP 08171084A EP 08171084 A EP08171084 A EP 08171084A EP 2070852 A2 EP2070852 A2 EP 2070852A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- ribbon
- centering
- shaft
- cylinder
- guiding
- 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- Withdrawn
Links
- 239000000463 material Substances 0.000 title claims abstract description 24
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 9
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 3
- 239000004809 Teflon Substances 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
- B65H23/032—Controlling transverse register of web
- B65H23/038—Controlling transverse register of web by rollers
Definitions
- the present invention relates to the field of industrial machine accessories.
- ribbon-like materials e.g. fabrics, paper, films, woven material, leather, etc.
- said materials are transferred by unwinding or winding from one cylinder to another.
- the material must be unwound and rewound remaining as centered as possible on the guiding rollers to prevent the external edges from going beyond the end of the rollers themselves, thus compromising the winding/rewinding operations and causing damages to the material itself.
- the object of the present invention allows to solve the described problem by ensuring at the same time, in a simple and effective manner, the transmission of ribbon-like material to be processed under optimal centering conditions with respect to the guiding rollers which are used for such a purpose, and reaches such an object by means of a specifically made guiding cylinder and corresponding actuating and control means associated thereto.
- the present invention allows to overcome the aforesaid problems in virtue of an apparatus comprising:
- said centering cylinder 10 comprises a plurality of discoid elements 20, each of which is free to rotate about its axis which is slightly inclined as compared to the axis of said shaft 21.
- said discoid elements are associated to the shaft 21 by means of bushings 22 having an offset hole with respect to the external surface.
- Said bushings are arranged on the shaft 21 and are adapted to accommodate, on the outermost edge thereof, either bearings or a layer of appropriate material adapted to favour sliding, e.g. Teflon TM , on which said discoid elements 20 are free to rotate about their axis.
- the bushings are substantially shaped as a hollow cylinder, in which the internal surface adapted to engage said shaft 21 is offset with respect to the external surface which is provided with a seat for bearings 23, or similar friction reducing means, and has a tooth 24 and a seat 25 adapted to accommodate said tooth 24, so as to facilitate the fitting with the adjacent bushings and allow to assemble each of them in phase with others.
- the two discoid elements 20 placed close to the right and left ends of said centering cylinder 10 will be associated to appropriate blocking means adapted to keep all discoid elements 20 forming said centering cylinder 10 joined together.
- said discoid elements 20 may be made of plastic or metal materials and their external surface, in contact with the ribbon to be processed, will be coated with a material which allows a slight friction in contact with said ribbon.
- said actuating means preferably comprise an electric motor connected to said shaft, said motor being for example of the brushless or stepper type, complete with corresponding electronic driving circuitry.
- the motor is further connected to said control device 13, connected in turn to said detection device 12 for the displacement of the edge of the material which is wound on said centering cylinder 10 and preferably comprising an edge guiding sensor arranged along the path of the ribbon, which is able to detect possible displacements of the external edge of the ribbon with respect to the ideal sliding line, which are the consequence of irregularities in the transversal extension of the ribbon itself.
- said detection device 12 detects a displacement of the aforesaid type, it sends an appropriate error signal to said control unit 13, to which said control unit 13 reacts so as to impress a variable rotation of up to a maximum of 180° - clockwise or counterclockwise - to the shaft 21 in order to facilitate the flattening of the ribbon, by means of the action of the centering cylinder according to the present invention, thus returning the edge thereof to the ideal sliding position through the progressive reduction of said error signal.
- said control unit 13 further comprises an input unit, adapted to read the error signal from said detection device 12, an error amplifier adapted to compare said error signal with a reference value, and an output unit adapted to generate the signals required to drive said actuating means so as to cancel the error and thus flatten the fabric which slides on the centering cylinder.
Landscapes
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Vehicle Body Suspensions (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Looms (AREA)
- Preliminary Treatment Of Fibers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITFI20070278 ITFI20070278A1 (it) | 2007-12-10 | 2007-12-10 | Cilindro per la guida e la centratura di materiale nastriforme e dispositivo di controllo ad esso associato. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2070852A2 true EP2070852A2 (de) | 2009-06-17 |
| EP2070852A3 EP2070852A3 (de) | 2010-10-06 |
Family
ID=40315457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08171084A Withdrawn EP2070852A3 (de) | 2007-12-10 | 2008-12-09 | Walze zum Leiten und Zentrieren von bandartigem Material und damit verbundene Steuervorrichtung |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2070852A3 (de) |
| IT (1) | ITFI20070278A1 (de) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6062453A (en) | 1996-07-25 | 2000-05-16 | The Goodyear Tire & Rubber Company | Active disk guide |
-
2007
- 2007-12-10 IT ITFI20070278 patent/ITFI20070278A1/it unknown
-
2008
- 2008-12-09 EP EP08171084A patent/EP2070852A3/de not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6062453A (en) | 1996-07-25 | 2000-05-16 | The Goodyear Tire & Rubber Company | Active disk guide |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2070852A3 (de) | 2010-10-06 |
| ITFI20070278A1 (it) | 2009-06-11 |
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