Method and apparatus for forming openings in polymeric tubing

Details Method and apparatus for forming openings in polymeric tubing Method and apparatus for forming openings in polymeric tubing

B - Operations, Transporting

23

B

B23B 41/00 (2006.01)

Patent

CA 2400885

In a method and apparatus for perforating multiwall polymeric cylindrical tubing, a drill head is slidably mounted for reciprocating movement on a support frame between inlet and outlet stations, the drill head having at least one drill for forming an opening in the wall of a length of unperforated tubing. The unperforated tubing is advanced along an axial path and a length thereof positioned in the drill head. The drill head and unperforated tubing are advanced simultaneously from the inlet to the outlet station, in unison and at the same speed, and without clamping the tubing. During this movement, the drill is actuated whereby to form an opening in the tubing material. At the outlet station, the perforated tube material is discharged from the drill head and the drill head is returned to the inlet station receive the next succeeding section of unperforated tubing and repeat the process.

Méthode et appareillage qui permettent de perforer un tubage multiparoi cylindrique polymérique. Une tête de perçage est montée par glissement pour obtenir un mouvement alternatif sur un bâti de support, entre les stations d'entrée et de sortie, la tête de perçage étant munie au moins d'un foret pour former une ouverture dans la paroi, dans la longueur du tubage non perforé. Cette partie non perforée est avancée le long d'un trajet axial et une certaine longueur de cette partie est positionnée dans la tête de perçage. La tête de perçage et le tubage non perforé sont avancés simultanément, de la station d'entrée jusqu'à la station de sortie, en même temps et à la même vitesse, et sans serrage du tubage. Pendant de déplacement, le foret est actionné pour former une ouverture dans le tubage. A la station de sortie, le tube perforé est déchargé de la tête de perçage, et cette tête est retournée à la station d'entrée pour recevoir la section suivante de tubage non perforée et répéter le processus.

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