WO2003080295A1 - Vorrichtung zur herstellung von jumbo-rollen für die fertigung von schleifmitteln - Google Patents
Vorrichtung zur herstellung von jumbo-rollen für die fertigung von schleifmitteln Download PDFInfo
- Publication number
- WO2003080295A1 WO2003080295A1 PCT/EP2003/003102 EP0303102W WO03080295A1 WO 2003080295 A1 WO2003080295 A1 WO 2003080295A1 EP 0303102 W EP0303102 W EP 0303102W WO 03080295 A1 WO03080295 A1 WO 03080295A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- production
- abrasives
- grinding belt
- jumbo rolls
- auflieizvorrichtung
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
- B24D11/001—Manufacture of flexible abrasive materials
- B24D11/005—Making abrasive webs
Definitions
- the invention relates to a device for producing jumbo rolls in the production of coated abrasives.
- an endless band of carrier material is continuously provided with a basic binder, with abrasive material and at least one cover binder in several process steps connected in series.
- the thermosetting binder is dried or pre-bleached.
- the coated, dried and pre-hardened, tack-free abrasive belt is rolled up on a winder to form a so-called jumbo roll (see Gardziella, Pilato, Knop; Phenolic Resins, 2nd edition (2000), Springer Verlag, page 345) ,
- the jumbo roll is placed in an oven and there, as a rule, heated to a temperature> 130 ° C. when phenolic resins are used as binders, to a temperature above the curing temperature of the thermosetting binder.
- the sanding belt is already heated to an elevated temperature in the course of its manufacture, especially during the pre-hardening of the binding agent in the so-called binding machine, but this thermal energy passes on the way from the binding machine to the winding device through braking and guide rollers and through the cold one Hall air largely lost. It must be re-fed in the curing oven for the jumbo roll.
- the edges and the outer layers are immediately hot while the core of the jumbo roll warms up very slowly. This not only results in inhomogeneous curing of the thermosetting binder, but also in the case of blue cover bindings, a very different discoloration of the surface. Due to the temperature load, the very quickly heated and overheated parts of the sanding belt slowly change from green to brown, while the inner, cooler core of the jumbo roll remains nice and blue. In order to at least alleviate this problem, the jumbo rolls are heated up extremely slowly, which leads to high energy costs on the one hand and poor productivity on the other hand.
- the device consists in that the winding device for the pre-hardened sanding belt is directly connected or connected with a heating device with which the sanding belt is heated over its entire width to a uniform temperature.
- This temperature is expediently preferably at or just below the desired curing temperature of the thermosetting binder.
- All devices can be used as the heating device, which deliver the highest possible and controllable energy density in order to bring about the heating of the grinding belt in the shortest possible time and with the shortest possible path length.
- Such heating devices are e.g. Radiators, in particular heat or infrared radiators, which are directed such that the grinding belt is irradiated uniformly over its entire width either shortly before reaching the winding device or in each case on the outer web on the winding device in a certain section.
- a heater can also be used as a heating device, in particular a convection oven or a short-time or microwave heating device, through which the grinding belt passes.
- heated rollers or heated conveyor belts upstream of the winding device, over which the grinding belt is guided, are also to be used as heating devices corresponding to the invention.
- the entire width of the abrasive belt brought to the desired temperature in the Auflieizvoroplasty according to the invention is wound up immediately afterwards on the winding device to the jumbo roll.
- the jumbo roll thus obtained has a uniform temperature, which is preferably at or just below the curing temperature of the thermosetting binder. It is immediately placed in the oven and heated to a temperature above the curing temperature of the thermosetting binder. Due to the preheating of the sanding belt, only a relatively small amount of energy is required to further heat the jumbo roll. The heating takes place quickly and enables an increase in production. Nevertheless, there are only slight temperature differences in the jumbo roll, the curing of the thermosetting binder takes place uniformly and there are no undesirable discoloration effects.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Description
Claims
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE50304859T DE50304859D1 (de) | 2002-03-26 | 2003-03-25 | Verfahren zur herstellung von jumbo-rollen für die fertigung von schleifmitteln |
| BRPI0303667-7B1A BR0303667B1 (pt) | 2002-03-26 | 2003-03-25 | processo para fabricação de materiais abrasivos em um suporte na forma de rolos jumbo |
| US10/509,407 US20050279460A1 (en) | 2002-03-26 | 2003-03-25 | Device for producing jumbo rolls for the production of abrasives |
| EP03744854A EP1492647B1 (de) | 2002-03-26 | 2003-03-25 | Verfahren zur herstellung von jumbo-rollen für die fertigung von schleifmitteln |
| AU2003255632A AU2003255632A1 (en) | 2002-03-26 | 2003-03-25 | Device for producing jumbo rolls for the production of abrasives |
| US11/973,787 US20090000746A1 (en) | 2002-03-26 | 2007-10-10 | Apparatus for producing jumbo rolls |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20204849.7 | 2002-03-26 | ||
| DE20204849U DE20204849U1 (de) | 2002-03-26 | 2002-03-26 | Vorrichtung zur Herstellung von Jumbo-Rollen |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US11/973,787 Division US20090000746A1 (en) | 2002-03-26 | 2007-10-10 | Apparatus for producing jumbo rolls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2003080295A1 true WO2003080295A1 (de) | 2003-10-02 |
Family
ID=7969428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2003/003102 Ceased WO2003080295A1 (de) | 2002-03-26 | 2003-03-25 | Vorrichtung zur herstellung von jumbo-rollen für die fertigung von schleifmitteln |
Country Status (8)
| Country | Link |
|---|---|
| US (2) | US20050279460A1 (de) |
| EP (1) | EP1492647B1 (de) |
| AT (1) | ATE337892T1 (de) |
| AU (1) | AU2003255632A1 (de) |
| BR (1) | BR0303667B1 (de) |
| DE (2) | DE20204849U1 (de) |
| ES (1) | ES2268392T3 (de) |
| WO (1) | WO2003080295A1 (de) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3020139A (en) * | 1960-04-18 | 1962-02-06 | Norton Co | Abrasive product |
| US3034266A (en) * | 1956-02-07 | 1962-05-15 | Grubb Kjeld Tue | Metallographic polishing |
| DE2146369A1 (de) * | 1971-09-16 | 1973-03-29 | Reichhold Albert Chemie Ag | Verfahren zur herstellung flexibler schleifmittelgebilde |
| US4163647A (en) * | 1971-06-23 | 1979-08-07 | Norton Company | Method for producing coated abrasives |
| EP0552698A2 (de) * | 1992-01-22 | 1993-07-28 | Minnesota Mining And Manufacturing Company | Verfahren zur Herstellung eines beschichteten Schleifmittels |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2576276A (en) * | 1948-08-02 | 1951-11-27 | Ohio Commw Eng Co | Apparatus for making flock covered paper |
| DE2644552B2 (de) * | 1976-10-02 | 1978-11-30 | Hoechst Ag, 6000 Frankfurt | Verfahren zur Herstellung von Schleifmitteln |
| US5007943A (en) * | 1989-11-03 | 1991-04-16 | Norton Company | Sol-gel process alumina abrasive grain blends in coated abrasive material |
| ES2087726T3 (es) * | 1992-03-03 | 1996-07-16 | Minnesota Mining & Mfg | Aglomerante termoendurecible para un articulo abrasivo. |
| CA2122168A1 (en) * | 1993-12-16 | 1995-06-17 | David P. Hultman | Polymer-reinforced paper having improved cross-direction tear |
-
2002
- 2002-03-26 DE DE20204849U patent/DE20204849U1/de not_active Expired - Lifetime
-
2003
- 2003-03-25 US US10/509,407 patent/US20050279460A1/en not_active Abandoned
- 2003-03-25 BR BRPI0303667-7B1A patent/BR0303667B1/pt not_active IP Right Cessation
- 2003-03-25 ES ES03744854T patent/ES2268392T3/es not_active Expired - Lifetime
- 2003-03-25 WO PCT/EP2003/003102 patent/WO2003080295A1/de not_active Ceased
- 2003-03-25 EP EP03744854A patent/EP1492647B1/de not_active Revoked
- 2003-03-25 DE DE50304859T patent/DE50304859D1/de not_active Revoked
- 2003-03-25 AT AT03744854T patent/ATE337892T1/de not_active IP Right Cessation
- 2003-03-25 AU AU2003255632A patent/AU2003255632A1/en not_active Abandoned
-
2007
- 2007-10-10 US US11/973,787 patent/US20090000746A1/en not_active Abandoned
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3034266A (en) * | 1956-02-07 | 1962-05-15 | Grubb Kjeld Tue | Metallographic polishing |
| US3020139A (en) * | 1960-04-18 | 1962-02-06 | Norton Co | Abrasive product |
| US4163647A (en) * | 1971-06-23 | 1979-08-07 | Norton Company | Method for producing coated abrasives |
| DE2146369A1 (de) * | 1971-09-16 | 1973-03-29 | Reichhold Albert Chemie Ag | Verfahren zur herstellung flexibler schleifmittelgebilde |
| EP0552698A2 (de) * | 1992-01-22 | 1993-07-28 | Minnesota Mining And Manufacturing Company | Verfahren zur Herstellung eines beschichteten Schleifmittels |
Also Published As
| Publication number | Publication date |
|---|---|
| US20050279460A1 (en) | 2005-12-22 |
| ATE337892T1 (de) | 2006-09-15 |
| EP1492647B1 (de) | 2006-08-30 |
| US20090000746A1 (en) | 2009-01-01 |
| DE20204849U1 (de) | 2002-09-26 |
| AU2003255632A1 (en) | 2003-10-08 |
| BR0303667B1 (pt) | 2013-07-16 |
| EP1492647A1 (de) | 2005-01-05 |
| ES2268392T3 (es) | 2007-03-16 |
| BR0303667A (pt) | 2004-07-13 |
| DE50304859D1 (de) | 2006-10-12 |
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