RO129072A2

RO129072A2 - Rollers for duo roll stand for embossing ribs and profiles on metal rods with variable cross-section

Info

Publication number: RO129072A2
Application number: ROA201200432A
Authority: RO
Inventors: Petrache Stoian; Marius Ilinca
Original assignee: Petrache Stoian; Marius Ilinca
Priority date: 2012-06-14
Filing date: 2012-06-14
Publication date: 2013-12-30
Also published as: RO129072B1

Abstract

The invention relates to some rollers for duo roll stand for embossing fins and profiles on metal rods with variable cross-section, which were previously drawn on a device with self-adjustable die. According to the invention, the rollers have some active surfaces (1) on which there are machined some helical grooves (a), with depth and shape in biunique correspondence with the shape of a blank (5), also taking into account the machining allowance, helical grooves (a) in which the material is upset during rolling and which are wound on the rollers according to some directing helices, on the left and on the right, whose deployed length is equal to or larger than the length of the blank (5) subjected to the rolling operation.

Description

CILINDRI DE CAJA DUO DE LAMINOR PENTRU RELIEFAT NERVURI SI PROFILURI PE BARE DE METAL CU SECȚIUNE VARIABILADUO CASE CYLINDERS FOR NERVES AND PROFILES ON METAL BARS WITH VARIABLE SECTION

Invenția se refera la niște cilindri de caja duo de laminor, la cald sau la rece pentru pentru realizat nervuri si profiluri pe semifabricate tip bara de otel cu secțiune variabila, de obicei de forma unui trunchi de con lung.The invention relates to cylinders of the rolling mill duo box, hot or cold for for making ribs and profiles on semi-manufactured steel rod type with variable section, usually in the form of a long cone trunk.

Sunt cunoscute elementele active,role discuri cilindri ale cajelor duo angrenatoare sau independente , la cald sau la rece pentru sârme,profite ușoare si mijlocii care lamineaza produsele respective insă in secțiuni constante.The active elements are known, roller discs cylinders of duo gearboxes or independent, hot or cold for wires, light and medium profits that laminate the respective products but in constant sections.

Mai exista de asemenea modulul trio din trenul reductor- alungitor al cajelor trio din trenul orizontale sau verticale laminoare de sarma,profile ușoare si mijlocii care exexuta laminatele enumerate^ot cu secțiune constanta.There is also the trio module in the reducer-elongation train of the trio boxes in the horizontal or vertical wire rolling mills, light and medium profiles that execute the laminates listed ^ ot with constant section.

Sunt elemente active role , discuri , cilindri ale cajelor quatro , policilindrice , planetare , caje Pilger la rece sau la cald cu dezavantajul ca nu prelucrează semifabricate de metal cu secțiune transversala variabila.There are active elements rollers, discs, cylinders of the quatro boxes, polycylindrical, planetary, Pilger boxes, cold or hot, with the disadvantage that they do not process metal semi-manufactured products with variable cross section.

Invenția de fata înlătură dezavantajele de mai sus prin aceea ca pentru diversificarea gamei de oțeluri de construcții si a armaturilor din otel beton pentru grinzi , stâlpi, console de egala rezistenta la încovoiere cu reducerea consumului de materii prime si materiale la același coeficient de siguranța , pentru nervurarea si profilarea barelor de metal si otelThe present invention eliminates the above disadvantages by diversifying the range of construction steels and reinforcing steel reinforcements for beams, poles, consoles with equal bending resistance with the reduction of the consumption of raw materials and materials at the same safety coefficient, for ribbing and profiling of metal and steel bars

NR..7^./££...NR..7 ^. / ... ££

beton cu secțiune variabila , obținute conform brevet ROconcrete with variable section, obtained according to RO patent

..._;foloseste o caja duo de laminare la cald sau la rece pe ai cărei cilindri sunt prelucrate niște canale elicoidale in care sunt executate negativele nervurilor si profilurilor care se imprima pe bara in timpul laminarii , canale înfășurate după niște elici directoare pe dreapta si pe stanga , ca la filete , ale căror desfășurate sunt egale sau mai mari decât lungimea semifabricatului.... _; uses a hot or cold rolling duo box whose cylinders are machined helical channels in which the negatives of the ribs and profiles that are printed on the bar during rolling are executed, channels wrapped after some directional propellers on the right and left, as threads, the length of which is equal to or greater than the length of the blank.

V--2012-00432-t 4 -06- 2012V - 2012-00432-t 4 -06- 2012

Se da in continuare un exemplu de realizare a invenției in legătură cu figurile 1 si 2.The following is an example of embodiment of the invention in relation to Figures 1 and 2.

Fig.l. Vedere longitudinala a cilindrilor.Fig Longitudinal view of the cylinders.

Fig.2. Secțiune laterala.Fig.2. Side section.

Cilindriccajei duo de laminare conform invenției sunt formați din niște suprafețe active 1 pe care sunt prelucrate prin rulare sau aschiere niște canale a” elicoidale semicirculare in secțiune transversala in care sunt executate cavitatile b , negativele profilurilor de pe bara de otel beton 5 care prezintă și doua nervuri diametral opuse formate in timpul laminarii de umerii c ale canalelor a elicoidale ce infasoara cilindrii x după niște elici directoare , una pe dreapta cealalta pe stanga,ale căror lungimi desfășurate sunt egale sau mai mari decât lungimea semifabricatului 5 , cilindri , care au la capete fusurile 2 de lagare si părțile prismatice 3 de cuplare la barele cardanice universale nefigurate, prin degajările 4 pentru antrenarea de către grupul motoreductor , nefigurat.După varfuirea semifabricatului 5 daca este cazul, funcție de unghiul de prindere al bara 5 cu secțiune transversala variabila de obicei de forma unui trunchi de con cu lungime determinata de lungimea desfasurata ale celor doua semicanale elicoidale, la cald sau la rece, se introduce cu unul din capete funcție de sensul de rotatie intre canelurile a ale cilindrilor deja in mișcare de rotatie neaccelerata, are loc angrenarea după care se continua laminarea, semifabricatul 5 urmând canelurile a cu profilurile b, trece continuu după o canelură mai adanca pe una mai puțin adanca sau invers, intr-o corespondenta biunivoca cu forma semifabricatului 5 după elicile directoare, una pe stanga alta pe dreapta care infasoara suprafețele 1 ale cilindrilor rezultând o bara dreapta de otel beton de forma unui trunchi de con lung cu nervuri diametral opuse si cu profiluri înspre exterior ca si otelul beton clasic cu profil periodic tipizat folosit actual ca armatura la beton armat după care urmeaza realimentarea , mecanizat a cajei cu alt semifabricat de pe patul laminorului.The rolling duo cylindrical molding according to the invention are formed of some active surfaces 1 which are processed by rolling or cutting some channels of semicircular helicals in cross section in which cavities b are executed, the negative profiles of the concrete steel bar 5 having two diametrically opposed ribs formed during the rolling of the shoulders c of the grooves of the helical grooves that coil the cylinders x after some guiding helices, one on the right the other on the left, whose lengths are equal to or greater than the length of the semifabricated 5, cylinders, which have at the ends bearing axles 2 and prismatic parts 3 coupling to universal shafts not configured, by means of 4 for drive by the geared group, not shown. After tipping the blank 5 if necessary, depending on the angle of attachment of the bar 5 with variable cross-section the shape of a cone trunk with a definite length attached to the length of the two helical semichannels, hot or cold, it is introduced with one end depending on the direction of rotation between the grooves of the cylinders already in non-accelerated rotation motion, the gearing takes place, after which the rolling continues, the semi-fabricated 5 following the grooves a with the profiles b, it passes continuously after a deeper groove on a less deep one or vice versa, in a bi-univocal correspondence with the shape of the blank 5 after the steering propellers, one on the left another on the right that wraps surfaces 1 of the cylinders resulting in a bar straight of concrete steel in the form of a long cone trunk with diametrically opposite ribs and with profiles to the outside as the classic concrete steel with a typical periodic profile used today as reinforced concrete reinforcement after which the refilling, machining of the box with another semi-manufactured on the bed mill.

Invenția prezintă următoarele avantaje:The invention has the following advantages:

permite obținerea unui metal profilat cu secțiune variabila.allows to obtain a profiled metal with variable section.

Permite obținerea unui otel beton de o forma noua , tip bara cu secțiune variabila cu nervuri si profiluri in relief. /y fj\ '2012-00432-ί 4 -06- 2012It allows to obtain a concrete steel of a new shape, bar type with variable section with ribs and embossed profiles. / y fj \ '2012-00432-ί 4 -06- 2012

Folosit_zotelul beton cu secțiune variabila cq armatura , la grinzi, console , de beton armat de egala rezistenta la încovoiere , la construcții civile , industriale etc permite structuri mai zvelte la același coeficient de siguranța.Used _z steel concrete with variable section cq reinforcement, beams, consoles, reinforced concrete of equal resistance to bending, civil, industrial construction etc. allows slimmer structures at the same safety coefficient.

Contribuie la reducerea consumului de materiale energo-intensive:ciment , otel , implicit a poluării.It contributes to reducing the consumption of energy-intensive materials: cement, steel, implicitly pollution.

Reduce timpul de lucru , la asamblarea armaturilor , la echipajele de fierari betonisti cu creșterea productivității.Reduces the working time, when assembling the reinforcements, to the crews of concrete blacksmiths with the increase of productivity.

Claims

CLAIM

Cylinders, rollers, discs, box, duo, trio, hot or cold wire for wire, light and medium profiles, characterized by the fact that for the purpose of ribbing and executing profiles on metal bars and concrete steel with variable section, and manufactured according to patent RO RO ... J.2. £> ./. 2.8 ............................. are formed from some active surfaces (1) on which are processed helical channels (a) with the depth and shape in the bi-univocal correspondence with the shape of the semi-finished product (5), considering also the addition of processing, channels (a) in which the material is reworked during lamination and which wrapping cylinders after some propellers on the left and on the right, the lengths of which are equal to or greater than that of the semi-finished product (5) subjected to rolling.