Brushing – scrubbing – and general cleaning – Attachments – Moving surface scraper – wiper – or brush
Patent
1993-12-09
1995-04-25
Scherbel, David A.
Brushing, scrubbing, and general cleaning
Attachments
Moving surface scraper, wiper, or brush
355299, B21B 4500
Patent
active
054087201
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a mounting assembly for a sheet-like member, and is particularly concerned with, but not restricted to, a mounting assembly for a blade.
DESCRIPTION OF THE BACKGROUND ART
One example of such a blade is a scraper blade used in the manufacture of paper. A process for manufacturing paper includes passing a wet fibrous material in sheet form over a series of rolls. During this process the water is allowed to drain off, and the fibrous material is heated to assist the drying process. The paper becomes progressively drier during its passage over the rolls, and at the final stages of the process the finished paper is wound onto a roll ready for delivery.
During the earlier stages of the process there is a tendency for damp fibres to come away from the sheet material and for the fibrous material, and other materials used in the process, such as china clay or titanium, to adhere as debris to the rolls. During the later stages of the process when the fibrous material is dry, protruding fibres are removed from the surface of the fibrous material when this material is in contact with heated rolls. This debris causes irregularities in the otherwise smooth cylindrical surface of the rolls. These irregularities are liable to impede the smooth progress of the sheet material over the roll or to damage the material during its passage over the rolls. This problem also arises in the manufacture of other sheet and film materials, such as for example textiles, in which debris on conveyor rolls or cylinders will affect adversely the product being manufactured.
It has previously been proposed to remove the debris by means of a scraper blade mounted at a suitable angle to the roll surface.
Further scope of applicability of the present invention will become apparent from the detailed description given hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will become more fully understood from the detailed description given hereinbelow and the accompanying drawings which are given by way of illustration only, and thus are not limitative of the present invention, and wherein:
FIG. 1 is a diagrammatic side view of a known scraper blade mounting assembly and roll,
FIG. 2 is a perspective view from above of the mounting assembly and roll of FIG. 1,
FIG. 3 is a diagrammatic detailed side view of the mounting assembly of FIGS. 1 and 2,
FIG. 4 is a detailed side view of the mounting assembly of FIGS. 1 and 2 showing the mounting of the scraper blade,
FIG. 5 is an exploded view of a top plate of the invention for the scraper blade mounting assembly, and
FIG. 6 is a side view of the mounting assembly schematically showing a laminated top plate.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring to FIGS. 1 to 3, a scraper blade 2 is mounted in a mounting assembly 4 to contact a roll 6 at a region where it is clear of the sheet material 8 being formed into paper. The roll 6 is rotating clockwise, and the sheet material 8 leaving the roll is travelling to the next stage in the manufacturing process.
The mounting assembly 4 comprises longitudinal, transversely spaced fingers 10 mounted on a pivot 12 secured to a support baseplate 14. The blade 2 is retained against a keep 16 at the front of the assembly 4 by a top plate 18 which is removably mounted on the fingers 10 by screws 20. The above-mentioned components of the mounting assembly are made of stainless steel to reduce the risk of corrosion. A flexible sealing strip 22 at the rear of the mounting assembly prevents the entry of dust or other foreign bodies.
Pneumatic tubes 24, 26 are located in the support baseplate 14 forwardly and rearwardly respectively of the pivot ro
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patent: 4906335 (1990-03-01), Goodnow et al.
patent: 5212226 (1992-06-01), Minford et al.
patent: 5217477 (1993-01-01), Lager
Scherbel David A.
Soohoo Tony G.
Vickerys Limited
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