Continuous operation, thin walled, tube-drawing bench - has drag chain assembly with laterally settable stop lug in one chain link

• Main Author: R. Z. AKCHURIN, V. I. VASEV, N. D. SMIRNOV, N. V. NIZOVTSEV, A. V. BUSHEV, V. M. POPOV, N. A. BABIR ET E. V. FEDOTOV
• Format: Patent
• Language: English; French
• Published: 16.09.1983
• Subjects: AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL; MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; TRANSPORTING

The continuous operation drawing bench produces thin walled tubes using a link drawing material. The bench has a drawing die and two parallel drag chains (21,22) fitted in front of the die and comprising pressure elements. The drag chain has in one of its links a stop lug (24) which is movable in a direction perpendicular to the drawing axis. This design allows continuous feed of the blank and at the same time the magnitude of the penetration force of the blank through the die is reduced. The stop lug is a lever (39) swivelling around a joint (38) with a spiral spring (40). The swivel motion of the arm is controlled by an axial cam on the face surface of the driving sprocket disc (43). L'INVENTION CONCERNE LA METALLURGIE.LE TRAIN D'ETIRAGE CONFORME A L'INVENTION EST DU TYPE COMPRENANT UNE FILIERE 7 ET DEUX TRANSPORTEURS PARALLELES 21 ET 22 MONTES EN AMONT DE LA FILIERE 7, POURVUS D'ELEMENTS DE SERRAGE 23 ET DISPOSES RESPECTIVEMENT DE PART ET D'AUTRE DE L'AXE D'ETIRAGE 10, AU MOINS L'UN DESDITS TRANSPORTEURS ETANT EXECUTE SOUS FORME D'UN TRANSPORTEUR A CHAINE COMMANDE 21, ET EST CARACTERISE EN CE QUE LE TRANSPORTEUR A CHAINE COMMANDE 21 EST EQUIPE D'AU MOINS UNE BUTEE 24 MONTEE DANS L'UN DES MAILLONS DE LA CHAINE ET MOBILE PERPENDICULAIREMENT A L'AXE D'ETIRAGE 10.L'INVENTION S'APPLIQUE NOTAMMENT A L'ETIRAGE A FROID DE TUBES A PAROIS MINCES EN METAUX NON FERREUX.