KR20010096674A - Cold Rolled Custom Flat Iron - Google Patents

Abstract

PURPOSE: An apparatus for manufacturing cold rolled custom steel flat bars is provided to reduce production cost so as to increase competitiveness, thereby contributing to the industrial development by producing steel flat bars in a small amount regardless of the standard and steel flat bars having relatively high precision differently from existing steel flat bars which are produced in the constant standard and have relatively low precision. CONSTITUTION: The apparatus for manufacturing steel flat bars is characterized in that custom steel flat bars are produced by cold rolling hot rolled iron or steel regardless of the standard using a side surface rolling roller based on the principle of a series of rolling facilities from a pay-off reel(2) to a tension reel(16), wherein the custom steel flat bars are produced regardless of the standard using narrow and long cut steel sheets without using the pay-off reel(2) and tension reel(16). An automatic oiling apparatus comprises oiling work rolls(20), oiling middle rolls(21) and oil middle storage units for preventing corrosion of the above manufactured steel flat bars so that oil is automatically applied to the surface of the steel flat bars. An automatic color coating apparatus comprises coating work rolls(17), coating middle rolls(18), paint supplying rollers(19) and paint middle storage units for preventing corrosion of the above manufactured steel flat bars so that paint is automatically applied to the surface of the steel flat bars.

Description

Cold Rolled Custom Flat Iron {omitted}

The present invention is applied to the production of narrow flat iron, and the narrow and long steel sheet coming into the coil from the pay-off reel, or via the shearing machine is transferred to the rust removal line by the inlet pinch roll by the material entering through the material inlet conveyor. When the removal liquid is sprayed and the rust removal liquid is evenly sprayed on the iron plate, the rust that has passed through the surface scale removal aqueous solution spray rust removal device, which is structured to continuously friction the iron plate by a wire brush roll, Steel strips of a certain thickness are made by passing the descaled steel strips through a rolling work roll where rolling forces can be generated by steel structures and general machinery. At this time, due to the thickness reduction limit of the rolling mill, the rolling mill of several stages is continuously operated by the carbon dam method to obtain a predetermined thickness, and the backing roll supports the rolling work to prevent the increase of the rolling force and the thickness of the crown shape during rolling. . When rolling in the thickness direction, in general rolling, the side is free, so the surface is not constant. Therefore, in order to use it as flat steel, machining was possible. However, in the present invention, it is possible to use it in general demand by flat rollers of a side roller rolled to a certain dimension without any problem. The flat iron passed through the rolling mill is transferred to a coating work roll to prevent rust. Here, in the paint intermediate storage device, paint is applied to the strip of steel sheet coils or narrow long flat bars by means of coating work rolls and the paint through the transfer roller and the intermediate rolls. The interval is adjusted. Products for oiling do not need to be painted, so they are directly put into the oiling work roll with the paint work roll open. Here, oil is used instead of paint and applied in the same way as paint to make P.O steel sheet.

[Technical field to which the invention belongs and the prior art in that field]

Until now, since flat iron is produced by hot dies, it is mainly used for building materials such as construction or civil engineering because it is relatively deformed, and it is relatively deformed. Post-treatment or machined flat iron was used. However, this also required correction by special equipment due to deformation by gas carting or hot die processing.

Therefore, the present invention improves the advantages and can cope with small-volume production without being limited by the standard, can be easily formed into a round shape or a rectangular shape of the corner portion, and has been developed a flat iron with little deformation by cold working. And so far, burr removal, which is the most problematic and the cause of failure in cold side machining, has been solved by high pressure air and burr removal knife.

Therefore, it has the advantage of maintaining the precision, which is the advantage of cold working in producing non-standard flat iron on demand.

According to the present invention, flat iron produced only to a certain standard and having a relatively low degree is produced according to the present invention, and a small amount of production and a relatively high degree of flat iron can be produced to reduce production costs and reconsider the competitiveness. To contribute.

1 is the overall device flow diagram

2 is a flat plate rolling apparatus

3 is a side rolling device

4 is a roll forming diagram

5 is a state diagram of a rolling roll and a guide roll

6 is a state rolling side and top and bottom guide roll

7 shows the automatic color coating device and the automatic oiling device.

Explanation of symbols on important parts of drawing

1. Steel strip 2. Payoff-reel 3. Inlet pinch roll

4.Surface descaling aqueous spray rust removal device 4-1 Rust removal roll device.

5.rolling device steel structure 6.rolling work roll

7.work roll pressing support structure 8.back-up roll 9.side guide roll

10.Side rolling device support structure 11.Side rolling roll 12 Steel plate vertical guide roller

13. Side rolling burr removal knife 14.finishing roll supporting structure

15.finishing rolled roll 16.side finishing rolled roll

17.Automatic color coating working roll 18.Automatic color coating intermediate roll

19.Automatic color coating paint feed roller

19-1. Automatic color coating paint intermediate storage device

20.Oiling work roll 21.Oiling intermediate roll 22.Oil supply roll

22-1.Oil intermediate storage device

23. Flat iron cutter produced 24. High pressure air line for burr cleaning during rolling

25.Export Conveyor 26.Material Entry Conveyor

A description with reference to the drawings illustrated below. Figure 1 is the overall device flow diagram according to the present invention 2. 1.strip from the pay off reel. 4. By pinch roll, it keeps pushing with pickling liquid spray rust removal device. 4-1. The steel strip rusted by the rust removal roll unit continues to be supplied to several 6. rolling work rolls, which are strongly constrained to the rolling steel structure and deliver mechanical rolling force and 8. It is supported by a back-up roll, which is driven by a driving device and rolled. In order to balance the force of rolling work rolls and simultaneously restrain the upper and lower work during rolling, 7.work roll pressing force supporting structure supports two upper and lower work rolls. 6. Rolled work rolls are rolled to produce the required thickness and precision of flat iron. With this operation alone, the side is uneven, so it is put into the side rolling equipment to correct it. Here, by the side rolling roll, the widthwise straightening work is performed by the side rolling. If the upper and lower burrs that occur after the side rolling are not removed, it may cause defects when passing through the next roll. 13. Remove the side rolled burrs from the plate by using a knife and roll them apart. High pressure air line device for cleaning burr generated at the time of use is transferred to outside through the pipe at high pressure so that the next process is not affected. 11. According to the shape of the side rolling roll, it is easy to determine the corner or round shape of the corner. After rolling and side rolling, pass the 15.finishing rolling roll and 16. side flnishing rolling roll to finish the flat iron shape for a relatively sophisticated product. Subsequent processes are divided into two types for rust suppression, and one is a color coating process. This paint equipment 17.automatic color coating work roll 18.automatic color coating intermediate roll 19.automatic color coating paint supply roller 19-1automatic color coating paint intermediate storage The paint stored in the device is transferred to the intermediate paint roll through the paint feed roll and then the paint is transferred to the coating workroll, which is then collar coated onto the supplied strip after rolling. The other is oiling process and the equipment is composed of 20. oiling work roll 21. oiling intermediate roll 22. oil supply roll 22-1. Oil intermediate storage device. It proceeds in the same way as the paint work method described above. The finished flat iron shall be cut and packed by 23. flat iron cutter according to the ordered length and supplied to the consumer. In case of supplying narrow and long cutting steel sheet instead of skelp, it is directly put into 3 inlet pinch roll without going through 2, pay-off reel, and in paint equipment or oil ring line before 16.tension reel at the end of the process. The product is formed. The other processes consist of the same processes as when the skelp is added.

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Claims (4)

Based on the principle of rolling equipment from pay-off reel 2. to tension reel 16. It is possible to produce customized flat iron by cold rolling hot rolled steel without using the side rolling roller. Flat iron making machine In order to prevent rust generation of the flat iron produced according to claim 1 13. Oiling workroll and 14. Oiling intermediate roll 15. Automatic oiling device characterized in that the surface is composed of automatic oiling, such as oil storage device In order to prevent rust generation of the flat iron produced by claim 1 10. Coating work roll 11. Coating middle roll, 12, Paint supply roller 12-1. Autocollar-coating device Flat iron fabrication apparatus characterized in that it is possible to produce custom flat iron without regard to the specification by using a narrow and long cutting iron plate without using the 2.pay-off reel and 16.tension reel of claim 1