Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1988-12-19
1990-10-09
Simmons, David
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
51297, 51334, 156263, 156518, 156522, B20D 1314
Patent
active
049618075
ABSTRACT:
A method of and apparatus for producing a grinding tool which includes a several grinding sheets radially arranged on a disk. The disk, having a hole in its center and adhesive along a circumferential edge portion of its upper surface, is provided on a receiving seat. A plurality of grinding belts distributed about the periphery of the receiving seat are directed radially inward toward the center of the disk so as to cover the adhesive and such that adjacent side edges of forward ends of the belts overlap each other, each of the overlapping belt ends having a grinding particle surface on a same side thereof facing away from the adhesive. A pressing plate is directed downward against the respective belt ends on the adhesive layer to adhere the respective belt ends to the disk. A cutting tool having a circumferential cutting edge is provided below and somewhat radially outward of the circumferentially edge of the disk. When the pressing plate is lowered, the cutting edge cuts the belts along a circular line which is coaxial with the disk. The pressing plate is held against the belt ends while the adhesive solidifies. The pressing plate is then raised so that the completed grinding tool can be removed from the receiving seat. The adhesive may or may not be heat sensitive. If the adhesive is heat sensitive, heating elements are provided in the pressing member and the receiving seat to melt the adhesive.
REFERENCES:
patent: 2796337 (1957-06-01), Block
patent: 3241267 (1966-03-01), Block
patent: 4679360 (1987-07-01), Eisenblatter
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