Cutter assembly for chipping head

B - Operations – Transporting – 23 – B

Patent

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Details

B23B 29/04 (2006.01) B23B 31/107 (2006.01)

Patent

CA 2678934

The present invention relates to a cutting device for a fast canter head (20) comprising a knife holder (22) directed at an angle, a counter knife (30) with an elbow and a dorsal support (37) which positions a cutting knife (50) having a frayed cutting angle (54) with cutting end (53). The cutting knife has a pair of adjustment recesses (52) containing an adjustment device (58, 58'). The adjustment device comprises an end of support (64) which leans against the dorsal support and works like a compensator to take into account any wear of the cutting angle of the knife for a constant distance grinding operation, in an adjustable position, making it possible to preserve a same rotation distance. The adjustment device has a railing guide (70) which slips into the adjustment recess (52) and which comprises an elastic wall (72) which pushes against the sides of the recess by the action of a tightening conical element (76) activated by a conical set screw (78). In the event of shock, the guide slips.

La présente invention concerne un ensemble de coupe pour tête équarrisseuse rapide (20) comprenant un support (22) orienté à angle et portant un porte couteau (30) avec coude et avec un appui dorsal (37) qui à son tour positionne un couteau, comme outil de coupe (50) avec partie tranchante (54) effilée et bout coupant (53). L'outil de coupe possède une paire d'encavures d'ajustement (52) contenant un dispositif d'ajustement (58,58'). Ce dispositif comprend un bout d'appui (64) qui s'adosse à l'appui dorsal et travaille comme compensateur pour tenir compte de l'usure de la pointe du couteau, en position ajustable, permettant de conserver une même distance, voire après aiguisage. Le dispositif a un guide (70) qui glisse dans l'encavure (52) et qui comprend une paroi élastique (72) qui serre contre les côtés de l'encavure par la poussée d'un élément de serrage (76) activé par un écrou conique (78). En cas de choc, le guide glisse.

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