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1. (WO2019025851) APPARATUS FOR FORMING IN CONTINUOUS A SPIRAL SEAMED CONDUIT, FORMING PROCESS AND SPIRAL CONDUIT
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Pub. No.: WO/2019/025851 International Application No.: PCT/IB2018/000781
Publication Date: 07.02.2019 International Filing Date: 24.07.2018
IPC:
B21C 37/12 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
21
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
C
MANUFACTURE 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
37
Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
06
of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
12
Making tubes or metal hoses with helically arranged seams
Applicants:
ZEFFIRO s.r.l. [IT/IT]; Viale 1° Maggio, 11 50031 Barberino di Mugello (FI), IT
Inventors:
Agent:
CONTI, Riccardo; Via Imbriani 85 50019 Sesto Fiorentino (FI), IT
Priority Data:
10201700008688031.07.2017IT
Title (EN) APPARATUS FOR FORMING IN CONTINUOUS A SPIRAL SEAMED CONDUIT, FORMING PROCESS AND SPIRAL CONDUIT
(FR) APPAREIL POUR FORMER EN CONTINU UN CONDUIT À JOINT EN SPIRALE, PROCÉDÉ DE FORMATION ET CONDUIT EN SPIRALE
Abstract:
(EN) Apparatus (1) for continuously forming a spiral seamed conduit (5) from a metallic strip (2) comprising a feeding plane (3) for said metallic strip (2); a forming head (4,4') rotating about a forming axis (A) substantially parallel to the feeding plane (3) and tilted by a forming angle (a) with respect to a direction orthogonal (0) to a feeding direction (F) of the metallic strip, wherein the forming head (4,4') is adapted to drive in rotation said metallic strip (2) for defining a spiral conduit (5); a lock-seaming device (6) configured to continuously lock two portions of said metallic strip (2) along opposite profiles for forming said spiral seamed conduit (5); wherein said forming head (4,4') is provided with one or more forming elements (7,9) arranged and configured so to define a substantially polygonal shape for the section of said spiral conduit (5) during the drive in rotation of said metallic strip (2); wherein said lock-seaming device (6) is configured to move along a seaming direction (G) so to lock said two portions along a side of said conduit (5); and wherein said apparatus (1) further comprises means configured to move the forming head (4,4') according to a plurality of axes. The present invention also relates to a process for forming in continuous a spiral conduit (5) having a substantially polygonal section and a spiral conduit (5) having a substantially polygonal section and four flat sides.
(FR) L’invention concerne un appareil (1) pour former en continu un conduit de sertissage en spirale (5) à partir d'une bande métallique (2) comprenant un plan d'alimentation (3) pour ladite bande métallique (2) ; une tête de formage (4,4') tournant autour d'un axe de formage (A) sensiblement parallèle au plan d'alimentation (3) et incliné selon un angle de formage (a) par rapport à une direction orthogonale (0) à une direction d'alimentation (F) de la bande métallique, la tête de formage (4,4') étant conçue pour entraîner en rotation ladite bande métallique (2) pour définir un conduit en spirale (5) ; un dispositif de sertissage de verrou (6) configuré pour verrouiller en continu deux parties de ladite bande métallique (2) le long de profils opposés pour former ledit conduit de sertissage en spirale (5) ; ladite tête de formage (4,4') étant pourvue d'un ou de plusieurs éléments de formage (7,9) agencés et configurés de manière à définir une forme sensiblement polygonale pour la section dudit conduit en spirale (5) pendant l'entraînement en rotation de ladite bande métallique (2) ; ledit dispositif de sertissage de verrou (6) étant conçu pour se déplacer le long d'une direction de sertissage (G) de façon à verrouiller lesdites deux parties le long d'un côté dudit conduit (5) ; et ledit appareil (1) comprenant en outre des moyens configurés pour déplacer la tête de formage (4,4') selon une pluralité d'axes. La présente invention concerne également un procédé pour former en continu un conduit en spirale (5) ayant une section sensiblement polygonale et un conduit en spirale (5) ayant une section sensiblement polygonale et quatre côtés plats.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: Italian (IT)