CN1057239C - Device for cold-rolling ribbed reinforced bar - Google Patents

Abstract

The present invention relates to a device which belongs to appliances for cold rolled twisted steel. The present invention comprises a cold rolling mill, a cold rolling incising machine, a drawing machine, a stress relieving machine and other components. The present invention is characterized in that the cold rolling mill is arranged at the point of the center line of rolled steel ribs; an included angle between the center lines of the cold rolling incising machine and the cold rolling mill, the center lines of the drawing machine and the rolled steel ribs are staggered for a distance, and the center lines of the stress relieving machine and the rolled steel ribs are also staggered for a distance. Steel bars are wound by a three-layer drum in the drawing machine, and decreased radii, notches and dynamic drawing force for stress relief are arranged in sequence from a lower layer channel and a middle layer channel to an upper layer channel. Compared with the prior art, the device has the characteristics of simple equipment structure, compact and reasonable layout of production lines, etc.

Description

The device of cold rolled reinforcing steel bar with ribs

Apparatus of the present invention belong to metal rolled apparatus field.Be specially adapted to the cold rolled reinforcing steel bar with ribs rolling mill assembly of production-line arrangement compactness.

In building industry, the intensity of cold rolled reinforcing steel bar with ribs is far above hot rolled ribbed steel bar, and that plasticity, toughness and concrete bond stress will be good than light face cold-drawn bar is many.Therefore cold rolled reinforcing steel bar with ribs can more and more widely be employed in steel for building field.In the prior art the production equipment of cold rolled reinforcing steel bar with ribs have multiple, pulley-type drawbench for example, this device generally will just can be finished one drawing procedure through a high pulley of stamping again after accumulating the multi-turn reinforcing bar on the reel.Whenever, will reverse 360 ° through a drawing reinforcing bar.Therefore adopt the rolling Ribbed Bar of this equipment, and mill speed is low, and for the big higher reinforcing bar of intensity of diameter, threading is very difficult with low-intensity, minor diameter.The layout that production line is arranged in addition is that every three roller rolls the mould milling train and all will join a drawbench, so the consumption of drawbench is more, and production-line arrangement is very long, and floor space is big.Have three present rollers to roll pattern rolling mill structure more complicated again, rigidity is relatively poor, because of rolling power is low, makes rolling diameter can not produce than thick and the higher reinforcing bar of intensity, has limited the specification of product, kind and output.

Purpose of the present invention is to propose good big, simple and reasonable with the rolling power of depressing of equipment of a kind of production Ribbed Bar product quality, performance, equipment entire arrangement compactness, the cold rolled reinforcing steel bar with ribs rolling mill assembly of processing ease.

According to purpose of the present invention, the rolling of this cold rolled reinforcing steel bar with ribs that we proposed pulled out equipment and formed successively that row has overhead paying out machine, rust remover, the lubricated machine of dry powder, rolls the machine of pulling out and parts such as the machine that eliminates stress, the concrete structure of this device can describe with reference to the accompanying drawings.Accompanying drawing 1 rolls the overall structure schematic diagram of pulling device for this, and accompanying drawing 2 rolls rolling, the drawing indentation of pulling device and the equipment schematic top plan view that eliminates stress for this, the drive mechanism schematic diagram that accompanying drawing 3 is depressed for roll in this device, and accompanying drawing 4 is the right view of accompanying drawing 3.1 is overhead paying out machine in the accompanying drawings, and 2 is rust remover, and 3 are the lubricated machine of dry powder, 4 is cold-rolling mill, and 5 is cold rolling scoring machine, and 6 is drawbench, 7 are the machine that eliminates stress, and 8 is admission machine, and 9 is worm screw, 10 is worm gear and nut, and 11 is leading screw, and 12 is the roller seat supporting-point, 13 are extension spring, 14 is roller seat, and 15 is roller seat three jaws, and 16 is roll.1 can find out with reference to the accompanying drawings, cold rolled reinforcing steel bar with ribs rolling mill assembly of the present invention includes overhead unwrapping wire 1, rust remover 2, dry powder lubricated machine 3, cold-rolling mill 4, cold rolling scoring machine 5, rolling drawbench 6 and eliminate stress machine 7 and admission machine 8 are partly formed, and it is characterized in that rolling, the drawing of this device and the machine that eliminates stress partly are made up of the cold-rolling mill 4 that is installed in diverse location on same horizontal plane, cold rolling scoring machine 5 and drawbench 6, the machine 7 that eliminates stress.Two groups of rolling tube reducing holes are arranged in cold-rolling mill 4, every group of rolling tube reducing hole all is made up of three rolls 16 that are divided into 120 ° mutually, in the cold rolling scoring machine 5 also be two groups each formed by three rolls that are divided into 120 ° mutually, but before to roll the hole be rolling hole, then roll the hole and should be the indentation hole.The rolling tube reducing that rolling, the indentation of cold rolling scoring machine 5 portals than cold-rolling mill 4 portals on same relatively horizontal plane, should high 80～200mm.And the rolling indentation that machine 7 Ribbed Bar that eliminate stress are portalled than cold rolling scoring machine 5 portals on same relatively horizontal plane high again 80～120mm.The cold-rolling mill 4 of this apparatus for cold rolling should be installed on the central axis of rolling reinforcing bar direction, and cold rolling scoring machine 5, drawbench 6 and the machine 7 that eliminates stress then are installed in the same side of rolling Ribbed Bar.2 can find out with reference to the accompanying drawings, the installation of cold-rolling mill 4 should be on the central axis of cold rolled reinforcing steel bar with ribs, the installation of cold rolling scoring machine 5 should be, angle is 30 °～50 ° between the central axis of the central axis of this cold rolling scoring machine 5 and cold-rolling mill 4, and drawbench 6 should be installed in cold-rolling mill 4, cold rolling scoring machine 5 and the position between the machine 7 of eliminating stress.The drawing cylinder of drawbench 6 can be driven by buncher, and the drawing cylinder of drawbench 6 is divided into three layers of drawing road, and the lower floor road is the drawing tube reducing road of cold-rolling mill 4 drawing power.The road, middle level is as cold rolling scoring machine 5 drawing tube reducings and indentation road, and the road, upper strata is as the power of the machine 7 that eliminates stress, to remove the residual stress of reinforcing bar in the cold rolling alternative process.The drawing cylinder lower floor drawing tube reducing road of drawbench 6 should portal on relative same horizontal plane with the rolling tube reducing of cold-rolling mill 4.Middle level drawing tube reducing indentation road should portal on relative same horizontal plane with the rolling indentation of cold rolling scoring machine 5.Removal rolling stress road, upper strata should portal on relative same horizontal plane with the Ribbed Bar of the machine 7 that eliminates stress.This device all is horizontally fixed on the ground at each equipment of rolling mill production line, and this device is according to production procedure, fixed installation is for overhead paying out machine 1, rust remover 2, dry powder lubricated machine 3, cold-rolling mill 4, cold rolling scoring machine 5, drawbench 6, machine 7 and admission machine 8 eliminate stress successively.Owing on the drawing cylinder of drawbench 6 three layers of drawing road layer are arranged, the level height in every layer of drawing road should be identical with the level height of corresponding equipment processing Ribbed Bar.So adopt a drawbench 6 drawings three passage reinforcing bars, on the same horizontal plane between fixed installation cold rolling scoring machine 5 and the cold rolled reinforcing bar center line angle be 30 °～50 °.Fixedly mount drawbench 6 more respectively and eliminate stress machine 7 also should with the rolling Ribbed Bar center line certain distance that staggers respectively.Another feature in apparatus of the present invention be cold-rolling mill 4 and cold rolling scoring machine 5 rolling and ragged roll depress transmission system, the structure of this system can be with reference to the accompanying drawings 3, accompanying drawing 4 is described in detail as follows, this system is by worm screw 9, worm gear and nut 10, screw mandrel 11, the roller seat strong point 12, extension spring 13, roller seat 14, roller seat three jaws 15 and roll 16 are formed, it is characterized in that screw mandrel 11 front ends and roller seat three jaws 15 are connected as one, three roller seats 14 are stuck by equally distributed each that is fixed on roller seat three jaws 15, the roller seat strong point 12 is to be fixed on the frame, front end at each roller seat 14 is equipped with roll 16, the upper end has socketed extension spring 13, and worm gear and nut 10 is housed on leading screw 11, worm gear and nut 10 is to link with worm screw 9.When worm screw 9 by motor or when manually turning clockwise, worm gear and nut 10 forward rotation then, at this moment leading screw 11 pulls back roller seat three jaws 15, driving each roller seat 14 draws back, because the effect that is fixed on frame top roll seat supports point 12 is arranged, force each roller seat 14 all to oppress institute's band roll 16, be in rolling duty this moment to the central axial direction swing.When worm screw 9 rotates counterclockwise, since worm gear and nut 10 force leading screw 11 with roller seat three jaws 15 push away forward, this moment each roller seat 14 under the effect of the roller seat strong point 12 and extension spring 13, each roll 16 is evenly outwards opened by central axis, be in off working state this moment.The production process of apparatus of the present invention is by the reinforcing bar self gravitation through overhead paying out machine 1, rust remover 2 will be entered behind the reinforcement metal straightening, through alternating bending, the hot-rolled reinforced bar scale on surface divested enter the lubricated machine 3 of dry powder again, reinforcing bar is stained with enter cold-rolling mill 4 again behind one deck wire-drawing lubrication powder and carries out the rolling tube reducing of two passages, the lower floor road that enters drawbench 6 when reinforcing bar is behind the 2-3 circle, and making reinforcing bar import cold rolling scoring machine 5 by the directive wheel of cold rolling scoring machine 5 again, to carry out one reducing and rolling rolling with indentation.The Ribbed Bar that has been shaped also will enter the road, middle level of drawbench 6 after the drawing of 2-3 circle, leading block by the machine 7 that eliminates stress enters the machine 7 that eliminates stress again, after passing through the repeatedly bending of level and vertical both direction again, again after the drawing by road, the upper strata 2-3 of drawbench 6 circle, by admission machine 8 Ribbed Bar closely is wound on the I-beam wheel again, takes off finished product after waiting to be rolled up.

Adopt apparatus of the present invention to have reasonable in design compared with prior art, the screw-down structure of Rolling roller and indentation roller is simple, whole device is easy to adjust, reliable, full production-line arrangement compactness, institute's production good product performance, the quality height, and three rollers of this milling train roll characteristics such as mould good rigidly and draught pressure be big.

Claims (2)

1, a kind of device of cold rolled reinforcing steel bar with ribs, this device includes overhead paying out machine (1), rust remover (2), dry powder lubricates machine (3), cold-rolling mill (4), cold rolling scoring machine (5), rolling drawbench (6) and the machine that eliminates stress (7) and admission machine (8) are partly formed, it is characterized in that the rolling of this device, drawing partly is by the cold-rolling mill (4) that is installed in diverse location on relative same horizontal plane with the machine that eliminates stress, cold rolling scoring machine (5) and drawbench (6), the machine (7) that eliminates stress is formed, two groups of rolling tube reducing holes are arranged in cold-rolling mill (4), every group of rolling tube reducing hole all is made up of three rolls (16) that are divided into 120 ° mutually, in the cold rolling scoring machine (5) also being two groups respectively is made up of three rolls that are divided into 120 ° mutually, but before to roll the hole be rolling hole, then roll the hole and should be the indentation hole, cold rolling scoring machine (5) rolling, the rolling tube reducing that indentation portals than cold-rolling mill (4) portals on same relatively horizontal plane, answer high 80～200mm, and the rolling indentation that the machine that eliminates stress (7) Ribbed Bar is portalled than cold rolling scoring machine (5) portals on same relatively horizontal plane, high again 80～120mm, the cold-rolling mill of this apparatus for cold rolling (4) should be installed on the central axis of rolling reinforcing bar direction, and cold rolling scoring machine (5), drawbench (6) and the machine that eliminates stress (7) then are installed in the same side of rolling Ribbed Bar, the installation of cold rolling scoring machine (5) should be that angle is 30 °～50 ° between the central axis of the central axis of cold rolling scoring machine (5) and cold-rolling mill (4), drawbench (6) should be installed in cold-rolling mill (4), position between cold rolling scoring machine (5) and the machine that eliminates stress (7), the drawing cylinder of drawbench (6) can be driven by buncher, the drawing cylinder of drawbench (6) is divided into three layers of drawing road, drawing cylinder lower floor drawing tube reducing road should portal with the rolling tube reducing of cold-rolling mill (4) on relative same horizontal plane, middle level drawing tube reducing indentation road should portal with the rolling indentation of cold rolling scoring machine (5) on relative same horizontal plane, and removal rolling stress road, upper strata should portal on relative same horizontal plane with the Ribbed Bar of the machine that eliminates stress (7).

2, according to the described device of claim 1, cold-rolling mill (4) and cold rolling scoring machine (5) rolling in this device, the transmission system of depressing of ragged roll is by worm screw (9), worm gear and nut (10), leading screw (11), the roller seat strong point (12), extension spring (13), roller seat (14), roller seat three jaws (15) and roll (16) are formed, it is characterized in that leading screw (11) front end and roller seat three jaws (15) are connected as one, three roller seats (14) are stuck by equally distributed each that is fixed on roller seat three jaws (15), the roller seat strong point (12) is to be fixed on the frame, front end at each roller seat (14) is equipped with roll (16), the upper end is connected with extension spring (13), worm gear and nut (10) is housed on leading screw (11), and worm gear and nut (10) is to link with worm screw (9).

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