Abrading – Machine – Endless band tool
Patent
1993-03-25
1995-03-07
Rachuba, Maurina T.
Abrading
Machine
Endless band tool
451304, 451307, B24B 2100
Patent
active
053946537
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention concerns a grinder for grinding a cylindrical or spherical surface of a roll, especially the roll of a paper machine, the roll being one having a scraper device associated with it.
BACKGROUND OF THE INVENTION
A grinder of the above-mentioned kind is for example known from CH-PS 668 212. This device is relatively complicated and accordingly its provision very expensive, since a special carrier as well as an adjustable copying pattern corresponding to the desired shape of the surface to be worked, and which forms a guide path, are required.
The object of the invention is to provide a grinder of the above-mentioned kind adapted to be brought into temporary association with a roll when needed for refinishing the surface of the roll, and which has a simple construction and is easy to use.
SUMMARY OF THE INVENTION
The invention resides in that the grinder uses the scraper apparatus associated with a roll as a carrier and, if need be, as a copying pattern. The additional provision of a carrier and, as the case may be, a copying pattern is therefore unnecessary. The grinder is accordingly simple and inexpensive to make and can moreover be quickly and simply put into place. These advantages especially arise if a damaged roll must be refinished.
The rapid and simple provision capabilities of the grinder thereby also reduces the downtime of a production line. The invention further resides in the grinder being one including a belt grinding mechanism with a contact roll over which the belt passes with the contact roll being floatingly supported so as to be able to suit the contour of the outer surface of the roll so that, for example, cambered rolls can also be ground; and in an alignment apparatus which prevents a tilted application of the grinding member to the roll and thereby avoids fault constituting grinding marks. The invention also resides in further details of the grinder described in the following description and claims.
BRIEF DESCRIPTION OF THE DRAWINGS
Embodiments of the subject matter of the invention are described in more detail hereinafter in connection with schematic drawings which show:
FIG. 1 is a side view, in the direction of sliding movement, of a belt grinder applied to a roll.
FIG. 2 is a top view of the belt grinder of FIG. 1.
FIG. 3 is a sectional view of the frame of the belt grinder taken along the line III--III of FIG. 4.
FIG. 4 is a sectional view of the frame of the belt grinder taken along the line IV--IV of FIG. 3.
FIG. 5 is a sectional view of the frame of the belt grinder with a supplemental securing apparatus taken along the line V--V of FIG. 6.
FIG. 6 is a right side view of the securing apparatus of FIG. 5.
FIG. 7 is a horizontal sectional view of the belt grinder of FIG. 1.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
FIGS. 1 and 2 are complete views of a grinder embodying the invention and which grinder is adapted to be temporarily mounted on the scraper apparatus 2 associated with a roll 4, for example the roll of a paper machine, for the purpose of grinding the surface of the roll to improve its condition. The grinder includes a frame 6 with rollers 8 which is placed on a scraper blade 10 of the scraping apparatus 2, the scraping apparatus 2 being shown in the condition of being pivoted away from the roll 4. A frame 6 includes a holder 12 with an engagement roller 14, which laterally engages the carrier 16 of the scraping apparatus 2. A grinder mechanism 18, in the form of a belt grinder mechanism, is fastened to the frame 6.
The holder 12 has an upper arm 20 and a lower arm 22 which are fastened to the frame 6 and extend transversely to the plane of the rollers 8. Each arm 20, 22 is provided with a double clamping member 24 which itself is fixed to the associated arm 20, 22 by means of a clamping screw 26. A rod 28 is fixed to the clamping members so as to extend transversely to the arms and likewise is fixed by clamping screws 30. The engagement roller 14 is supported on the lower end of the rod with the plane of the roller 14 runn
REFERENCES:
patent: 2579391 (1951-12-01), Minarik et al.
patent: 4575972 (1986-03-01), Ohki et al.
patent: 4841683 (1989-06-01), Williams
patent: 5185961 (1993-02-01), Maier
Farros Blatter AG
Rachuba Maurina T.
LandOfFree
Grinder for grinding a cylindrical or spherical surface of a rol does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Grinder for grinding a cylindrical or spherical surface of a rol, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Grinder for grinding a cylindrical or spherical surface of a rol will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1399060