摘要:
The invention relates to a knife assembly for slicing woodwool, comprising a knife with a chip surface (1), a clearance surface (2) and a cutting edge (3), defined by the intersection between both surfaces. The knife assembly is characterised by guiding ribs (4) extending perpendicularly to the cutting edge (3) and joining the chip surface (1) with an end (5) that substantially coincides with the cutting edge (3) and with the guiding surface joining said end and rising there towards. The guiding ribs (4) can be formed integrally with the knife.
摘要:
The invention relates to an apparatus for producing sideways curved woodwool fibres. The apparatus comprises a flat rotatable disc (2), in the surface of which is provided at least one knife assembly (7) comprising a thickness knife (8) which projects slightly above the surface of the disc (2) and which has a cutting edge extending substantially radially and further comprising width knives (9) positioned, as seen in the direction of rotation of said disc (2), ahead of said thickness knife (8) and having a cutting edge extending substantially tangentially. The width knives (9) are positioned in the immediate vicinity of the thickness knife (8), whereas their cutting edge may engage the thickness knife (8). Further the apparatus is provided with at least one feeding device (5) for feeding the disc (2) with wood blocks (6) to be cut up into fibres. Further a run-up guide may be positioned ahead of the width knives.
摘要:
In a method for manufacturing bamboo chips, first the nodes may be removed from the bamboo culms by sawing through the bamboo culms at each side of a node, and then the bamboo culms are peeled preferably by bringing the bamboo culms on rotating rolls provided with knives. After this the bamboo culms are roughly splitted lengthwise preferably by driving a conical bar through the hollow bamboo culm, and thereafter the splitted pieces are finely chipped. In a method for manufacturing bamboo wool, first the bamboo culms are chipped, then the bamboo chips are preferably introduced in a rotating drum (25) containing balls (27) and steam (29) is added to soften the bamboo chips. By pressing the bamboo wool and/or bamboo chips after adding glue and during heating of the mixture, products like boards or profiles (31) can be obtained.