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1. WO2016008915 - EQUIPMENT FOR COLD-DRAWING A METAL WIRE

Publication Number WO/2016/008915
Publication Date 21.01.2016
International Application No. PCT/EP2015/066141
International Filing Date 15.07.2015
IPC
B21C 3/14 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
3Profiling tools for metal drawing; Combinations of dies and mandrels for metal drawing
02Dies; Selection of material therefor; Cleaning thereof
12Die holders; Rotating dies
14Die holders combined with devices for guiding the drawing material or combined with devices for cooling, heating, or lubricating
CPC
B21C 3/14
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
3Profiling tools for metal drawing; Combinations of dies and mandrels
02Dies; Selection of material therefor; Cleaning thereof
12Die holders; Rotating dies
14Die holders combined with devices for guiding the drawing material or combined with devices for cooling heating, or lubricating
Applicants
  • VASSENA FILIERE S.R.L. [IT]/[IT]
Inventors
  • VASSENA, Davide
Agents
  • MITTLER, Enrico
Priority Data
MI2014A00129416.07.2014IT
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) EQUIPMENT FOR COLD-DRAWING A METAL WIRE
(FR) APPAREILLAGE PERMETTANT LE TRÉFILAGE D'UN FIL MÉTALLIQUE
Abstract
(EN) An equipment for cold-drawing a metal wire is described. The equipment comprises a sequence of a sleeve (100) and a drawing die (200) in the wire advance path; the sleeve comprises a hole (103) for inserting the wire to be drawn, and the drawing die comprises a conical hole (210). The equipment comprises first support means (102) of the sleeve and second support means (202) of the drawing die coupled with each other so as to keep the sleeve and the drawing die in place to allow the wire advance path from the sleeve to the drawing die. The first support means (102) comprise a hole (101) for inserting the metal wire which precedes the hole (103) of the sleeve in the metal wire advance path; the hole (101) of the first support means is coaxial with the hole (103) of the sleeve and has a smaller diameter than the initial opening (111) of the sleeve hole in the metal wire advance path. Said hole of the sleeve comprises an initial truncated-cone-shaped part, the larger diameter base of which is the initial opening of the sleeve hole in the metal wire advance path, the walls of said initial truncated-cone-shaped part of the sleeve hole forming an angle of less than 30° with the hole axis (A).
(FR) L'invention concerne un appareillage pour le tréfilage d'un fil métallique. L'appareillage comprend une séquence d'un manchon (100) et d'une filière d'étirage (200) dans le trajet d'avancement du fil, le manchon comprenant un trou (103) pour l'introduction du fil à étirer et la filière d'étirage comprenant un trou conique (210). L'appareillage comprend un premier moyen de support (102) du manchon et un second moyen de support (202) de la filière d'étirage accouplés l'un avec l'autre de manière à maintenir le manchon et la filière d'étirage en place pour permettre le trajet d'avancement de fil du manchon à la filière d'étirage. Le premier moyen support (102) comprend un trou (101) permettant l'introduction du fil métallique qui précède le trou (103) du manchon dans le trajet d'avancement du fil métallique, le trou (101) du premier moyen support étant coaxial avec le trou (103) du manchon et ayant un plus petit diamètre que l'ouverture initiale (111) du trou du manchon dans le trajet d'avancement du fil métallique. Ledit trou de manchon comprend une partie initiale tronconique, dont la base de plus grand diamètre est l'ouverture initiale du trou de manchon dans le trajet d'avancement du fil métallique, les parois de ladite partie initiale tronconique du trou de manchon formant un angle inférieur à 30° avec l'axe du trou (A).
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