JPS58192618A - Refining apparatus of hot rolling wire rod - Google Patents

Abstract

PURPOSE:To obtain a titled apparatus capable of heat-treating a wire rod by utilizing the heat in case of rolling, which the wire rod holds, by forming the wire rod in annular shape after hot rolling, also forming a coil, and thereafter, executing air patenting when it is carried by a conveyor. CONSTITUTION:A wire rod 12 whose hot rolling is completed by a finish rolling mill 11 is adjusted as to its temperature by a cooling zone 13, and thereafter, is formed like a prescribed ring by a laying head 15 of a ring forming device 14, an inner guide 16, etc., and also is dropped onto an intermediate table 17 through a coil forming device 17. Subsequently, the annular wire rod 12 is shifted onto a roll conveyor 32 by a table roll 18, is subjected to air patenting treatment by cooling it from about 900-1,000 deg.C to 400 deg.C or so at a cooling speed of 2-7 deg.C/sec or so by an air patenting device 33 consisting of an air blower 34, a mist generator 35, a duct 36, etc., on the way of carrying, and thereafter, is formed like a coil by a reforming tab 32A, and is accumulated. Also, it is possible to form the annular wire rod 12 on the intermediate table 17 and to carry it out by a coil carrying-out device (the figure is omitted).

Description

[Detailed description of the invention] The present invention relates to a hot rolled wire refining device.

The wire rod after hot rolling is subjected to various types of secondary and tertiary processing, such as wire drawing, drawing, cold forging, and cutting. Here, the strength and hardness of the wire rod after hot rolling are as follows:
Since it is not suitable for the processing purpose of tertiary processing, the wire rod is subjected to various heat treatments according to each processing purpose in the pre-stage of Fi secondary processing and 13th processing. However, when heat treatment is performed before the above-mentioned 2 medical primary and tertiary processing, it is necessary to heat the wire to a predetermined temperature.
A large amount of thermal energy is required.

In the present invention, in the refining stage after hot rolling, the wire rod is subjected to hot pressure t! The purpose of the present invention is to provide an I-material refining device.

In order to achieve the above object, a hot rolled wire refining device according to the present invention includes a ring forming device that forms a hot rolled wire into a ring shape, and a ring forming device that transforms the ring shaped wire formed by the ring forming device into a coil. a coil forming device that forms a coil into a shape;
It is possible to continuously discharge wire rods formed into a ring shape by a ring forming device, and an intermediate table is capable of stacking and holding round wire rods formed into a coil shape by a coil forming device; The present invention has an air patenting device that performs air patenting on a ring-shaped wire rod, and a coil unloading device that unloads the coiled wire layered on the intermediate wire in a coiled state.

Embodiments of the present invention will be described below with reference to the drawings.

Fig. 1 is a schematic front view showing one embodiment of the present invention, Fig. 2 is a schematic front view showing a different operating condition lI of the main part in Fig. 1, Fig. 3 F'i 11# of Fig. 2 FIG. 4 is a schematic view taken along If/-IV- in FIG. 2, and FIG.
The figure is a plan view showing a different operating state of FIG. 4.

As shown in FIG. 1, the wire rod 12 that has passed through the finishing mill 11 and has been hot-rolled has variations in temperature within and between billets after rolling, so In order to keep the starting temperature of air cooling by the patenting device constant, the temperature is adjusted by water cooling in a water cooling zone 13 disposed on the exit side of the finishing rolling mill 11. The wire rod 12 whose temperature has been adjusted by the water cooling zone 13 is continuously formed into a ring shape having a predetermined curvature in a laying head 15 and an inner guide 16 that constitute a ring forming device 14.

Continuously molded by the ring molding device 14 and
The ring-shaped wire rod 12 falls onto the intermediate table 17.

The wire rod 12 falls onto an intermediate chisel 17, intersects, and can be discharged in a continuous ring state under the drive of a table roller 18. Further, in the process of dropping the wire rod 12 onto the intermediate table 17, the coil forming device 1 interposed between the ring forming device 14 and the intermediate chidle 17
9 can be formed into a coil shape and stacked on the intermediate table 1T on which the table roller 1B is stopped.

As shown in FIGS. 3 and 4, the L coil forming device 19 consists of half-shaped coil guides 21A and 21B fixed to support shafts 20A and 20B, respectively. Gears 22A and 22B, which are coaxially fixed to each other, are meshed with each other, and
Drive gear 2 driven by drive unit 23 to ear 22A
4 are meshed with each other, so that both coil guides 21A and 21B can be rotated in mutually opposite directions by the operation of the drive section 23. That is, the ring-shaped wire 12 is placed on the intermediate table 1.
7, both coil guides 21A, 21
8F'i is opened to the position shown by the solid line in Fig. 5, and when the ring-shaped wire rod is stacked in a coil shape on the 12ft intermediate table 11, it is closed as shown in Fig. 4 to prevent the load from collapsing during stacking. can be prevented.

As the coiled wire rods 12 are stacked on the intermediate table 11 by the coil forming device 19, the intermediate table 17F'i is gradually lowered by the intermediate chisel lifting device [25, and one billet worth of coiled wire rods 12 is stacked. At the time of completion, the intermediate chisel 17 has reached its downward slope and can be stopped, as shown in FIGS. 2 and 3.

The intermediate table elevating device [25 is a screw shaft 26 connected to the lower surface of the intermediate table 17, a nut 27 screwed with the screw shaft 26 and fixed to a frame (not shown), and coaxially integrated with the screw shaft 26. A worm wheel 28, a worm 29 that allows the worm wheel 28 to rotate, and a guide 190 fixed to the lower surface of the intermediate table 17.
0 is made up of a guide tube 31 with an id rod 30 as a guide E'JD.

That is, by the operation of the worm 29, the screw shaft 26 moves helically with respect to the nut 27, so that the intermediate table 1T can move up and down.

Here, the ring-shaped wire rod 12 continuously discharged from the intermediate table 17 as described above is placed on the roller conveyor 32 disposed at the same level as the rising end of the intermediate table 17. Air patenting is performed by an air patenting device 33 installed below the conveyor 32. The air patty sitting device 33 is composed of a blower 34, a mist generator 35, and a duct 36.
It has air cooling or mist cooling capability from 900°C to L000°C to about 400°C at a rate of 7°C/second to 7°C. Note that during the air patenting process, the Cheagle roller 18 of the intermediate table 17 and the roller conveyor 32 are driven at a speed that matches the rolling speed.

Further, on the exit side of the roller conveyor 32, a reforming knot 32A is provided that allows the air patented ring-shaped wire 12 to be coiled and stacked.

Further, the coiled wire 12 laminated on the intermediate chisel 17 as described above is transported in a coiled state to the annealing line by a coil transporting device 37 as shown in FIG.
It is said that it can be carried out on 8@8@t4hi. Coil unloading device 37
consists of a parallel link mechanism and a lifting beam 40 that can be raised and lowered by a cylinder device 39; a truck 42 that can reciprocate on the lifting beam 40 by a drive chain 41; A coil support member 43 that prevents the leg material 12 from collapsing, and a trolley 4.
A locking portion 4 is provided at the tip of the fork 44 and is capable of locking onto the outer peripheral edge of the coiled wire 12.
It consists of 5. That is, after the intermediate table lifting device 25 completes lowering the intermediate table 17, the cart 42f on the lifting bee A40 in the lowered position is moved forward,
Fork 44 [Table roller 18 of intermediate table 17
After the lifting beam 40 is raised by the cylinder device 39 and the wire rod 12 is supported on the fork 44, the wire rod 12 () is moved back to the carriage 42f.
Chidel 38 is pulled out in a coiled state and transported to the annealing line.
It becomes possible to post # on. When carrying out the wire rod 12,
When the upper end of the wire 12 is located inside the coil forming device 19, as shown by the double-dashed line in FIG. 3, both coil guides 21A,
21B is opened to the position shown by the two-dot chain line in FIG.

The transfer of the wire rod 12 from the intermediate table 17 to the fork 44 of the coil unloading device 37 is as follows. Yo KL,'
r% good. Agawa 1.4 or 6-keel lifting device 2
5, located between the table rollers 18 of the intermediate teethol 17 on the downward path J'llll of the intermediate teethol 17,
The coiled leg material 12 on the intermediate table 17 may be transferred onto the fork 44 that is waiting above the loading level of the cheagle roller 18. There is no need to raise and lower the fangs.

Next, the operation of the above embodiment will be explained.

When the wire rod 12 is subjected to air patenting treatment at a cooling rate of about 2°C/sec to 7°C/sec, Ki is made by ring molding (
The nine wire rod 12, which is formed into a ring shape by t14, is moved to an intermediate dedel 17 which is driven at a speed matching the rolling speed.
The air is discharged at the same time as the table roller 18-hK#rF is rolled, and is continuously carried out on a roller conveyor 32 which is also driven at a speed matching the rolling speed. The patenting device 33 applies air tenting using the heat generated during rolling, and the sheets are assembled in a forming tap 32A to obtain a predetermined quality. On the other hand, when the wire rod 12 is made of a soft material and requires softening annealing at a cooling rate of about 1° C./second or less, the wire rod 12 formed into a ring shape by ring molding [14] is formed into a coil. Molding device 19
After being formed into a coil shape and laminated on the intermediate table 17, the coils are transferred to the coil unloading device 37, and sent out from the coil unloading device 37 in a high temperature laminated coil state to an annealing line serving as a slow cooling line.

According to the above embodiment, when air patenting treatment is required in the wire refining line, the ring-shaped wire 12
At the same time, the cooling rate is slower than that of the air patenting process, so if slow cooling is required, the material is coiled under high temperature conditions and then transferred to the annealing line side. Since it is possible to carry out the wire rod 12, it is possible to utilize the retained heat given during hot rolling and to control the cooling rate in the cooling process over a wide range, making it possible to save energy even under the same heat treatment conditions as the wire rod 12. It is important to heat treat it to
As described above, the hot-rolled wire refining device according to the present invention includes a ring-forming device that shapes a hot-rolled wire into a ring shape, and a ring-shaped wire formed by the ring-forming device into a coil shape. a coil forming device for forming the coil; an intermediate table capable of continuously discharging the wire rod formed into a ring shape by the ring forming device; and capable of holding the wire rod formed into a coil shape by the coil forming device;
It has an air patting device that performs an air patenting process on the ring-shaped wire continuously discharged by the intermediate table, and a coil unloading device that unloads the coiled wire stacked on the intermediate table in a coiled state. As a result, there is an effect 3 in that the wire rod can be heat-treated by utilizing the heat during rolling that the wire rod has in the refining stage after hot waxing.

[Brief explanation of drawings]

Fig. 1 is a schematic front view showing one embodiment of the present invention, Fig. 2 is a schematic front view showing the main parts in different operating states in Fig. 1, Fig. 3 is taken along line 11 in Fig. 2. Schematic arrow view, 4th
Is the diagram in Figure 2? FIG. 5 is a schematic view taken along the line /-■, and FIG. 5 is a plan view showing a different operating state from FIG. 4. 12°° wire rod, 14... ring forming device, 17...
- Intermediate table, 19...Coil forming device, 33
°・Air patenting device, 37.・Coil unloading device. Agent Patent Attorney Osamu Shiokawa

Claims (1)

[Claims] (1) A ring forming device that forms the hot-rolled wire rod into a ring shape, and a ring forming device that forms the wire rod into a ring shape.
a coil forming device that forms a ring-shaped wire into a coil;
An intermediate table that can continuously discharge wire rods formed into a ring shape by a ring forming device, and also can hold stacked edge material formed into a coil shape by a coil forming device; An apparatus for refining hot rolled wire rods, comprising an air patenting device for air patenting a ring-shaped edge material to be processed, and a coil unloading device for unloading coiled wire rods stacked on an intermediate table in a coiled state. .