Apparatus for forming grooves in cylindrical surfaces

B - Operations – Transporting – 29 – C

Patent

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Details

B29C 59/04 (2006.01) B21D 17/04 (2006.01)

Patent

CA 2192795

An apparatus for forming grooves in the cylindrical surfaces of tubes or rods has a passage through the apparatus with a grooving roller mounted adjacent the passage. The roller has a helically extending ridge formed on its circumference, with the ridge extending into the passage and the roller being mounted for rotation about an axis inclined to the axis of the passage. The angle of inclination of the axis is such that the ridge, where it extends into the passage, runs at right angles to the axis of the passage. The roller is made to rotate about the tube or rod as the tube or rod passes through the apparatus.

Un appareil servant à former des rainures (18) dans les surfaces cylindriques de tubes ou de barres comprend un passage (38) qui traverse l'appareil et un cylindre de rainurage (44) qui est monté adjacent au passage. Le cylindre (44) comporte une nervure (48) hélicoïdale qui est formée sur sa circonférence et qui s'étend dans le passage (38), et le cylindre est monté de façon à tourner autour d'un axe (54) incliné par rapport à l'axe (50) du passage (38). L'angle d'inclinaison de l'axe (54) est tel que la nervure (48), à l'endroit où elle s'étend dans le passage, s'étend orthogonalement par rapport à l'axe (50) du passage. Le cylindre (44) est amené à tourner autour du tube ou de la barre (10) lorsqu'il ou elle traverse l'appareil.

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