JPS61223135A - Coiler for hot rolled wire - Google Patents

Abstract

PURPOSE:To make possible the effective utilization of heat energy and the reduction of heat treatment time by providing a coiler provided with a laying cone, rider holding and lifting mechanism, tentative wire holding mechanism and wire conveying rollers to the inside of a furnace right after a finishing mill. CONSTITUTION:The coiler is provided to the inlet side end of, for example, a holding furnace 1 right after the finishing mill. This device is equipped with the laying cone 2 provided hermetically to a ceiling wall 3 of the furnace 1, the rider holding mechanism 11 thereunder, a cylinder device 5 for moving vertically the same, the tentative wire holding mechanism 11 between the cone 2 and the mechanism 4 and the conveying rollers 6 in the lower part of the furnace inside. The preheated rider 7 is first placed on the mechanism 4 and the mechanism 4 is positioned to the upper limit. The coiling of the wire 8 is then started and the mechanism 4 is successively lowered to maintain the specified spacing between the cone 2 and the top surface of the coil. The next wire is supported by the mechanism 11 and at the same time the mechanism 4 is positioned to the lower limit upon completion of coiling. The rider 7 and the coil are then carried on the rollers 6 and are successively conveyed in the furnace. The preheated rider 7 is conveyed onto the mechanism 4 and the mechanism 4 is positioned to the upper limit. The wire 8 is dropped from the mechanism 11 onto the rider 7.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an apparatus for winding a wire rod immediately after finish rolling into a coil in a furnace.

(Prior Art) After rolling, wire products undergo various processes and are carefully controlled to meet the specifications and standards of customers. As one of these methods, heat treatment may be performed after winding.

By the way, conventional methods for heat-treating the wire after winding include continuous heat-treating on a stellmore conveyor;
Alternatively, a method is generally employed in which the material is once cooled after being rolled up, and then reheated and heat treated in a batch furnace or continuous furnace.

(Problems to be Solved by the Invention) However, when heat treatment is performed on the former Stelmore conveyor, full-scale heat treatment for a long time is impossible due to the length of the conveyor. In addition, in the latter method, since the coil is cooled once, the heat held by the coil during winding is wasted.
In addition, since it is heated again from a cooled state, there is a drawback that the heat treatment requires a long time.

The present invention is based on the knowledge that if the wire temperature is kept at a certain value during heating, rolling, and winding, and then immediately kept heated, spheroidizing annealing, which conventionally required more than 10 hours, can be performed in a few hours. This is an attempt to solve the drawbacks of the conventional method by arranging a winding device in the furnace immediately after the finishing mill.

(Means for Solving the Problems) The present invention provides a winding device disposed in a furnace disposed immediately after a finishing rolling mill, the winding cone being hermetically arranged on the ceiling wall of the furnace. a rider holding mechanism that supports a preheated rider at a position below the laying cone and its elevating mechanism; and a wire rod immediately after finish rolling that is interposed between the rider holding mechanism and the laying cone and is led out from the laying cone. This hot-rolled wire winding device comprises a temporary holding mechanism that temporarily supports the wire rod, and a roller that conveys the wire rod wound onto the rider to form a coil into a furnace.

(Function) When the winding device according to the present invention is used, the finish-rolled wire rod can be wound up in the furnace as it is and heat treated continuously, so the heat held by the wire rod is not wasted. Energy can be used effectively and heat treatment time can be shortened.

(Example) The present invention will be described below based on an example shown in the accompanying drawings.

In the drawings, reference numeral 1 denotes, for example, a heat retention furnace provided immediately after the finishing rolling mill, and a winding device according to the present invention is disposed at the inlet side end of the heat retention furnace 1.

Reference numeral 2 denotes a laying cone disposed on the ceiling wall 3 of the heat retention furnace 1, and the laying cone 2 and the ceiling wall 3 are sealed together by, for example, a gas seal. A heat insulating material, for example, is attached to the portion of the laying cone 2 facing the inside of the furnace so as to withstand the high temperature atmosphere.

Reference numeral 4 denotes a rider holding mechanism for supporting a rider, which will be described later, and is arranged below the laying cone 2 in the furnace. This rider holding mechanism 4 is formed in the shape of a drainboard, and includes, for example, four lifting cylinder devices 5.
The structure is such that when it is moved up and down in the furnace, it does not interfere with the conveyance roller 6 provided at a lower position in the furnace, and at its lower limit is located below the upper surface of the conveyance roller 6. Incidentally, it goes without saying that the interval between the cylinder devices 5 is larger than the width of the rider.

7 is a rider that is supported by the rider holding mechanism 4 and receives the wire rod 8 led out from the laying cone 2;
After being preheated to a predetermined temperature in a lidar preheating furnace 9 connected to the inlet end of the heat retention furnace 1, it is conveyed by rollers to the heat retention furnace 1 when necessary.

In addition, 10 is a lidar insertion door provided between the heat retention furnace 1 and the lidar preheating furnace 9, and it can be raised and lowered when necessary.
It is possible to transport the preheated lidar 7 into the heat retention furnace l.

1) is a temporary holding mechanism for the wire rod 8 which is interposed between the reining cone 2 and the rider holding mechanism 4 in the furnace, and the wire rod 8 is temporarily held by winding up the required amount of firewood 8 while lowering the rider holding mechanism 4. After being transported into the heat furnace 1, the wire rod 7 is temporarily supported until the next rider 7 is lifted and the wire rod 8 is lifted up. This temporary holding mechanism 1) is
For example, by attaching a support plate 13 to the lower end of a plurality of pivot shafts 12 hanging down on the same circumference, and rotating the pivot shafts 12 integrally in the same direction, the wire rod 8 is supported and released. It is a structure. Note that 14 is a cylinder device for rotating the pivot shaft 12.

Since the equipment described above operates under hot conditions, all of them are made of heat-resistant materials, or their surfaces are subjected to heat-resistant treatment such as pasting a heat insulating material.

In this embodiment, the rider holding mechanism 4 and the temporary holding mechanism 1) are moved up and down and rotated by a cylinder device, but the present invention is not limited to this, and the design may be changed to an appropriate known mechanism. That is optional. Further, in this embodiment, the heat retention furnace 1 and the winding section are partitioned via the elevator door 15, but the present invention is not limited to this.

Next, the working order of the winding device according to the present invention will be explained.

■Prior to the start of winding the wire 8, the rider 7 is preheated.
is placed on the rider holding mechanism 4, and the rider holding mechanism 4 is placed on the rider holding mechanism 4.
is installed at the upper limit position, and at this time, the support plate 13 is retracted to a position where it does not support the wire rod 8.

■Start winding the wire rod 8. At this time, the rider holding mechanism 4 is sequentially lowered according to the amount of winding of the wire 8, and the distance between the laying cone 2 and the upper surface of the coil is maintained constant.

(2) When winding of the wire 8 is completed, the pivot 12 is rotated and the next wire 8 is supported by the support plate 13. At the same time, the rider holding mechanism 4 is lowered to the lower limit position. As a result, the rider 7 and the coil are transferred to the conveyor roller 6.
Climb on top and be transported into the furnace.

(2) At the same time that the rider 7 and the coil disappear from the rider holding mechanism 4, the rider insertion field 10 rises, and the preheated rider 7 is conveyed onto the rider holding mechanism 4.

(2) Thereafter, the rider holding mechanism 4 is raised to the upper limit position. When this lifting is completed, the pivot 12 is rotated and the wire 8 is dropped from the support plate 13 onto the rider 7.

Repeat the above operations.

(Effects of the Invention) As described above, according to the present invention, the finish-rolled wire rod can be continuously wound in the furnace while still hot, so the heat held by the wire rod is not wasted, and energy is effectively used. It can be used. Further, in the present invention, the coil that has been cooled is not subjected to heat treatment again, but is wound up while still hot and heat treatment is performed, so that full-scale heat treatment can be performed in a short time. Furthermore, according to the present invention, it is possible to heat-treat the coil without reducing rolling efficiency within the range of the number of coils accommodated in the furnace, and furthermore, it is possible to introduce the wire into the atmospheric gas immediately after rolling is completed. , it becomes possible to manufacture coils with a very small surface scale.

In addition, although the present embodiment shows a device installed inside a heat retention furnace, it goes without saying that the device is not limited to this.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of a winding device according to the present invention, and FIG. 2 is a sectional view taken along line nn in FIG. 1 is a heat retention furnace, 2 is a laying cone, 3 is a ceiling wall, 4 is a rider holding mechanism, 5 is a lifting cylinder device, 6 is a conveyance roller, 7 is a rider, 8 is a wire rod, 9 is a rider preheating furnace,
1) is a temporary holding mechanism, and 14 is a rotating cylinder device.

Claims (1)

[Claims] (1) A winding device disposed in a furnace disposed immediately after a finishing rolling mill, which includes a laying cone hermetically arranged on the ceiling wall of the furnace, and a preheated rider. a rider holding mechanism and its elevating mechanism that support the rider at a lower position; a temporary holding mechanism that is interposed between the rider holding mechanism and the laying cone and temporarily supports the wire rod just after finishing rolling that is led out from the laying cone; 1. A winding device for hot-rolled wire, comprising a roller for transporting the wire wound into a coil into a furnace.