Process and device for cutting slots in tubular bodies

Details Process and device for cutting slots in tubular bodies Process and device for cutting slots in tubular bodies

B - Operations, Transporting

26

F

B26F 1/00 (2006.01)

Patent

CA 2054685

The invention relates to a process and device for cutting slots (13) in tubular bodies. the tubular bodies (2) are conveyed intermittently and slotted (13) during the stationary stages. To this end the cutter (1) has an intermittent conveyor for the tube (2), preferably in the form of at least one conveyor worm (3) with straight and oblique sections (4, 5). In addition, the cutter (1) has several blade shafts (6) rotatably arranged around the tube (2), the direction and drive of which are matched to the feed rhythm. With a larger number of blades (7), the blade shafts (6) are divided into two groups and slot the tube (2) in groups and in succession. The angular position and direction of rotation of the blade shafts (6) are mutually determined so that there is always the same number of blades in the cutting position and that the moments exerted on the tube (2) by the cutting forces are mutually compensated.

L'invention concerne un procédé et une installation pour tailler des fentes (13) dans des corps tubulaires. Les corps tubulaires (2) sont acheminés par intermittence et taillés (13) durant les phases stationnaires. € cette fin, la machine à tailler (1) est équipée d'au moins un transporteur de tubes (2) à fonctionnement intermittent, de préférence du type à vis sans fin (3), avec sections droites et sections obliques (4 et 5). La machine à tailler (1) possède plusieurs arbres de coupe (6) en rotation autour du tube (2); leur direction et leur fonctionnement est fonction de la vitesse d'avance du tube. Lorsqu'un nombre important de lames (7) sont utilisées, les arbres de coupe (6) sont partagés en deux groupes et le travail est effectué par groupe et en succession. La position angulaire et le sens de rotation des arbres de coupe (6) se déterminent mutuellement, de telle sorte qu'un même nombre de lames se trouvent en position de travail et que les forces exercées sur le tube par les outils de coupe (2) s'annulent mutuellement.

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