Process for manufacturing a screen basket and screen basket made by this process
AssigneeJ. M. Voith GmbH
InventorWerner Lange
Life of this patent
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Abstract
This invention concerns a process for making rotationally symmetric screen baskets featuring axially parallel bars with screen slots contained in between and, for support of the bars, rings that are coaxial with the basket axis, the rings being provided with recesses that are open toward the rim and the bar feet being placed and fastened in the recesses. The invention is characterized by the following features: (a) the bars are placed in the recesses while the rings do not have their final rounded shape yet; (b) next, the rings are rounded so as to close the circular shape and to clamp the bars in place in the recesses that are being constricted by the rounding.
Claims15
A process for the manufacture of a rotationally symmetric screen basket, said screen basket having axially parallel bars with screen slots therebetween, said basket further having an axis and including rings for support of said bars, said rings being coaxial with said axis, said rings having an inner rim and being provided with recesses which open toward said rim, each of said bars having a respective foot portion whereby said foot portions are positioned and fastened in said recesses, said process comprising:
- providing respective bodies to be rounded into said rings, said bodies having said recesses formed therein;
- placing said bars in said recesses prior to rounding said bodies into rings;
- and
- rounding said bodies into rings so that the circular shape of said rings is closed and so that said bars are clamped in position in said recesses, said recesses being constricted by said rounding.
A rotationally symmetric screen basket, said screen basket having an axis, comprising:
- plurality of axially parallel bars having screen slots therebetween, each of said bars having a foot portion;
- a plurality of rings supporting said bars, said rings being formed from bodies whereby the bodies are rounded into rings, said rings being coaxial to said axis, said rings having an inner rim and being provided with recesses which open toward said rim, said recesses having said bar foot portions positioned and fastened therein;
- said bars being adapted to be placed in said recesses prior to said bodies being rounded into rings so that said bars are clamped in position in said recesses, said recesses being constricted by said rounding.
Dependencies are inferred from the claim text.