CN219112505U

CN219112505U - Cold rolling deformed steel bar production facility

Info

Publication number: CN219112505U
Application number: CN202122343092.1U
Authority: CN
Inventors: 吕启春; 甄圣明; 喻云龙
Original assignee: Nanjing Xianhe Engineering Technology Co ltd
Current assignee: Nanjing Xianhe Engineering Technology Co ltd
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2023-06-02
Anticipated expiration: 2031-09-26

Abstract

The utility model discloses cold-rolled screw-thread steel production equipment, which sequentially comprises a blooming unit, an intermediate frequency heating furnace, a secondary rolling unit and a steel rolling device, wherein a clamping shear is arranged between the blooming unit and the intermediate frequency heating furnace, and a flying shear is arranged between the secondary rolling unit and the steel rolling device; compared with the prior art, the utility model uses the clamping shear and the flying shear to shear the rolled piece, thereby meeting the requirement of high-speed production, the sheared rolled piece can be collected, the pollution and the waste are avoided, the production efficiency is improved by adopting the double paying-off system, the collection and coiling station is adopted to collect the rolled piece, and the yield of the finished product is improved.

Description

Cold rolling deformed steel bar production facility

Technical Field

The utility model relates to deformed steel bar production equipment, in particular to cold-rolled deformed steel bar production equipment.

Background

In the existing cold-rolled deformed steel bar production process, a straight strip production mode is generally adopted, namely, a coil is cut into fixed length 9m/12m after being rolled by a rolling mill, and a finished product is delivered in a straight strip mode. The problem with this approach is that the rolling speed is slow, only about 3m/s, the production efficiency is low, and the yield is low.

The utility model patent with publication number of CN205599661U discloses a cold-rolled threaded steel production line, which adopts the design of a paying-off machine, a dephosphorizing machine, a coating machine, a plurality of cold rolling machines and a wire drawing machine, and realizes the production of the threaded steel with full continuity, high efficiency and high strength. However, this method, although improving the production efficiency and rolling speed of the deformed steel bar to some extent, requires stopping the whole machine and pulling out the rolled piece to be damaged when the rolled piece is damaged, and re-producing the rolled piece, which greatly reduces the working efficiency, and the final production is still straight bar type, and the yield is not high enough.

Disclosure of Invention

The utility model aims to: the utility model aims to provide a cold-rolled deformed steel bar production process which does not need to stop processing when a rolled piece is damaged, thereby meeting the requirement of efficient production.

The technical scheme is as follows: the utility model relates to cold-rolled screw-thread steel production equipment which sequentially comprises a blooming unit, an intermediate frequency heating furnace, a secondary blooming unit and a steel coiling device, wherein a clamping shear is arranged between the blooming unit and the intermediate frequency heating furnace, and a flying shear is arranged between the secondary blooming unit and the steel coiling device.

Therefore, after defective products are produced when the rolled piece breaks down during rolling, the rolled piece can be cut off by using the clamping scissors and the flying scissors respectively, and meanwhile, the subsequent rolled piece can continuously travel to the next working procedure, so that the requirement of high-speed production is met.

Preferably, a steel stacking box is arranged between the shearing and blooming units, so that rolled pieces sheared by the shearing can be collected, and pollution and waste are avoided.

Preferably, a collecting device is arranged between the flying shears and the steel rolling device, and the collecting device pulls out the rolled piece from the rolling line, so that the rolled piece can be actively pulled out from the rolling line through the collecting device, and the rolled piece sheared by the flying shears is collected, so that pollution and waste are avoided.

Preferably, the heating temperature of the intermediate frequency heating furnace is 500-700 ℃, so that the quality of finished products of rolled pieces can be improved.

Preferably, the wire rod paying-off device further comprises a bending tension sheller, wherein the bending tension sheller carries out surface treatment on the paid-out wire rod disc, so that the surface quality of the disc can be ensured.

Preferably, the pay-off rack further comprises a pay-off rack arranged at double stations, so that after the pay-off work of one pay-off rack is completed, the stand is switched to the other pay-off rack for paying off, the time waste that the middle needs to be stopped, replaced and re-wound is avoided, and the production efficiency is effectively improved.

Preferably, the automatic wire laying machine further comprises a wire laying machine and a wire collecting station, the wire laying machine is used for laying wires on rolled pieces into wire loops and then collecting the wire loops into coils by the wire collecting station, and products stacked in the coils can effectively improve the yield and the production efficiency.

The beneficial effects are that: compared with the prior art, the utility model has the advantages that: 1. the rolled piece is sheared by the clamping shearing machine and the flying shearing machine, so that the requirement of high-speed production is met; 2. the sheared rolled piece can be collected, so that pollution and waste are avoided; 3. the production efficiency is improved by adopting a double paying-off system; 4. and the collection and coiling station is adopted to collect and coil, so that the finished product yield is improved.

Drawings

Fig. 1 is a structural diagram of the apparatus of the present utility model.

Detailed Description

The technical scheme of the utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1, the cold-rolled threaded steel production equipment sequentially comprises a double paying-off system 1, a bending tension sheller 2, a steel brush rust remover 3, a blooming unit 4 consisting of three rolling mills, a steel stacking box 5, a snap-off shear 6, an intermediate frequency heating furnace 7, a secondary rolling mill group 8, a flying shear 9, a collecting device 10, a coil steel device 11, a pinch roll 12, a wire laying machine 13, an air cooling track 14, a coil collecting station 15, a PF (physical conveying) risk 16, a bundling machine 17, a weighing device 18 and a coil unloading device 19, wherein when the rolled piece is damaged, the snap-off shear 6 is adopted to shear the rolled piece between the blooming unit 4 and the intermediate frequency heating furnace 7, and the flying shear 9 is adopted to shear the rolled piece between the secondary rolling mill group 8 and the coil steel device 11, so that after the rolled piece has quality problems, a stand shears the rolled piece on a rolling line, thereby meeting the requirement of high-speed production, avoiding shutdown operation and improving the production efficiency.

Meanwhile, rolled pieces sheared by the clamping scissors 6 can fall into the steel piling box 5 to be collected, and rolled pieces sheared by the flying scissors 9 can be dragged and collected through the collecting device 10, so that material pollution and waste are effectively avoided.

In addition, the double paying-off system 1 adopts double stations to pay-off, and can be switched to another station to pay-off immediately after one station paying-off is completed, so that the working efficiency is ensured. The bending tension sheller 2 and the steel brush rust remover 3 can both remove iron oxide and other defects on the surface of a disc, and ensure the surface quality.

The intermediate frequency heating furnace 2 is used for annealing after heating the rolled piece to 500-700 ℃, so that the quality of the finished product can be improved. Finally, the wire loops looped by the laying head 13 are collected into rolls by the collecting station 9 and then bundled, thereby achieving final roll delivery with greater throughput and higher economic benefits than prior art straight delivery.

The coiled materials after being bundled by the bundling machine 17 are weighed by the weighing device 18, and the coiled materials are coiled by the coil discharging device 19, and are put into storage and stacked.

Claims

1. The cold-rolled deformed steel bar production equipment sequentially comprises a blooming unit (4), an intermediate frequency heating furnace (7), a secondary rolling mill set (8) and a coil steel device (11), and is characterized in that a clamping shear (6) is arranged between the blooming unit (4) and the intermediate frequency heating furnace (7), and a flying shear (9) is arranged between the secondary rolling mill set (8) and the coil steel device (11).

2. Cold rolled screw steel production device according to claim 1, characterized in that a steel stack box (5) is also provided between the snap shears (6) and the blooming train (4).

3. Cold rolled screw steel production device according to claim 1, characterized in that a collecting device (10) is arranged between the flying shears (9) and the coil device (11), the collecting device (10) pulling the rolled piece out of the rolling line.

4. Cold rolled screw steel production equipment according to claim 1, characterized in that the heating temperature of the intermediate frequency heating furnace (7) is 500-700 ℃.

5. Cold rolled deformed steel bar production apparatus according to claim 1, further comprising a bending tension sheller (2), wherein the bending tension sheller (2) surface-treats the wire rod disc after paying-off.

6. The cold rolled deformed steel bar production apparatus of claim 1, comprising a pay-off stand provided with double stations.

7. Cold rolled steel production plant according to claim 1, further comprising a laying head (13) and a coil collecting station (15), the laying head (13) laying the rolled stock into wire loops and collecting the coils by the coil collecting station (15).