JP4430265B2 - Wire rod focusing method and apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rolling wire rod converging method and apparatus, and in particular, when a wire rod ring is converged into a coil, the wire ring is dispersed or the outer diameter is regulated, thereby aligning or densifying the winding shape of the wire ring. The present invention relates to a wire focusing method and apparatus that can be used.
[0002]
[Prior art]
In general, in the hot rolling of a wire rod, the wire rod rolled by a rolling mill is formed into a ring shape by a horizontal laying type winder, and placed on a transfer device such as a stealmore conveyor, and a wire rod converging device (coil) Forming device). During the transfer, the wire ring is heat-treated by natural or forced cold air. The transferred ring-shaped wire rod is introduced into a wire rod converging device, converged into a coil shape, and shipped as a wire rod coil.
[0003]
A method of focusing the wire coil by the wire focusing device will be described with reference to FIG. The ring-shaped wire 1 that has been spirally developed after hot rolling and has been horizontally lowered and transferred on the conveyor is introduced into the converging tab 3 by a tab roller 2. A nose cone 4 is provided in the center of the focusing tab, and the nose cone 4 is supported alternately by an openable / closable iris 5 and a vertically movable tip 6 by a conical carrier 6. The carrier 6 for conveyance is fitted in a stem 8 disposed on the coil plate 7 and can be moved up and down. Two stems 8 are provided facing each other and can be turned. Around the stem 8, a plurality of door pins 9 are provided so as to be flattened in the form of double doors.
[0004]
The ring-shaped wire 1 introduced into the focusing tab 3 by the tab roller 2 falls and accumulates on the iris 5 by the action of the nose cone 4. In this state, when the carrier 6 is raised to support the nose cone and the iris 5 is opened, the ring-shaped wire deposited on the iris falls along the periphery of the carrier 6 and the stem 8, A wire coil is deposited on the coil plate 7.
[0005]
As the wire coils that are converged in this way, wire coils having different outer diameters are required due to the convenience of the secondary processing manufacturer. In order to obtain a plurality of types of wire rods having different outer diameters, the wire rods are dispersed at the time of focusing.
[0006]
For example, Japanese Patent Laid-Open No. 5-329538 and Japanese Patent Laid-Open No. 9-285818 have proposed a wire converging apparatus that can disperse a wire ring.
[0007]
In JP-A-5-329538, a plurality of vertical slits are provided at positions distributed over the entire lower periphery of the focusing tab, and a swing arm that swings in the radial direction through these slits is provided. A wire scattering device in a wire rod focusing device is disclosed in which these swing arms are linked to a circular ring body that is externally fitted to a focusing tab and rotated. In this wire rod scattering device, one kind of outer diameter is disclosed. Only wire rod coils can be obtained.
[0008]
In Japanese Patent Laid-Open No. 9-285818, a plurality of restriction rods extending in the vertical direction are provided in the coil forming chamber at intervals in the circumferential direction, and each of the restriction rods is individually formed by the plurality of drive mechanisms. It is configured to be capable of approaching and separating toward the virtual center line of the chamber and parallel to the virtual center line, and is set by a setting unit for setting the movement mode of the plurality of restriction rods, and a setting setting unit. And a control device that controls the plurality of drive mechanisms according to the movement mode, and the movement mode includes a fixed mode in which the movement spans of the plurality of restriction rods are all the same and are in a fixed state; Disclosed is a wire coil converging device characterized in that each of the movement spans of the restriction rods can be set to a scattering mode that periodically changes in order, In the wire rod coil focusing device, when the traveling direction to the regulating rod of the wire ring is present, there is a problem that catches the wire ring regulatory rod mechanism. If the restriction rods are not installed in a place where the wire ring is easily caught, the interval between the restriction rods is partially widened and the restriction ability cannot be fully exhibited. In addition, when the restriction rod is used, the ring bounces at the time of focusing, the outer diameter is disturbed, and the focusing function may not be fully exhibited.
[0009]
[Problems to be solved by the invention]
The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a method and an apparatus for focusing a wire rod having an arbitrary outer diameter by aligning or dispersing wire rod rings without using an arm or a regulating rod. is there.
[0010]
[Means for Solving the Problems]
The present inventor can arrange or disperse the wire rod ring by arranging a plurality of fins having a taper with a predetermined angle on the upper part of the iris in the circumferential direction and restricting the falling wire rod ring with the fin, and The inventors have found that the problems caused by using conventional arms and regulating rods can be solved, and have completed the present invention.
[0011]
The gist of the present invention is as follows.
[0012]
(1) In a wire rod converging method in which a wire rod ring is converged while dropping substantially horizontally with a ground in a tab, a taper descending toward the center of the tab at a taper angle of 30 to 70 ° with respect to the horizontal direction on the top of the iris, and the taper A plurality of plate-like fins having tapered lower portions that descend downward from the tip are arranged so as to be retractable on the side wall of the tab, and the wire rod ring to be dropped is always moved toward the center by the fin and aligned. .
[0013]
(2) In a wire converging method for converging while dropping a wire ring into a tub substantially horizontally with respect to the ground, a taper descending toward the center of the tab having a taper angle of 30 to 70 ° with respect to the horizontal direction above the iris and the taper A plurality of plate-like fins having tapered lower portions that descend downward from the tip are arranged on the tab side wall, and the plurality of fins are individually moved toward and away from the central direction of the focusing tab, so that the falling wire ring becomes a taper of the fin. A method of converging a wire rod, wherein the wire rod ring is moved by moving the wire rod toward the center of the focusing tab.
[0014]
(3) In a wire rod converging device for converging while dropping a wire ring into a tub substantially horizontally with respect to the ground, a taper descending in the tab center direction with a taper angle of 30 to 70 ° with respect to the horizontal direction and a lower side than the tip of the taper A wire rod concentrator comprising: a plurality of plate-like fins having a tapered lower portion that descends to be retractable on a tab side wall; and a drive device that allows the fins to protrude and retract in a converging tab.
[0015]
(4) The wire focusing apparatus according to (3) above, further comprising a fin position control device that controls a fin position.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described with reference to the drawings.
[0017]
FIGS. 2A and 2B are diagrams for explaining the shape of the fin of the present invention, wherein FIG. 2A is a diagram showing a taper of the fin, and FIG. 2B is a schematic diagram showing a state in which the wire ring falls along the taper of the fin. It is.
[0018]
As shown in FIG. 2, the plurality of fins 11 are arranged on the tab side wall 12 at the top of the iris. That is, the fin 11 can be stored in the tab side wall 12 at the top of the iris, and can be arbitrarily projected and retracted from the tab side wall. The shape of the fin 11 is plate-like, and the upper part thereof is 30 to 70 ° as shown in FIG. 2A, preferably with respect to the wire ring (horizontal direction 13) that falls horizontally with the ground, The taper has an angle (α) of 45 to 70 °. Then, as shown in FIG. 2B, the wire ring 1 falls along the taper of the fin 11 and converges. If the taper angle (α) of the fin is less than 30 °, the wire ring cannot slide down on the fin. In addition, the taper angle is preferably 70 ° or less because of space constraints. Therefore, in the present invention, the taper angle of the fin is set to 30 to 70 °, preferably 45 to 70 °, descending toward the center of the tab with respect to the horizontal direction. The taper lower part is lowered below the tip of the taper .
[0019]
FIG. 3 is a view showing a state of the fins arranged on the focusing tab. FIG. 3A shows a state in which the fin is stored in the tab side wall when not in use, and FIG. It is a figure which shows the state which makes a ring-shaped wire rod line up by projecting a predetermined amount fin.
[0020]
As shown in FIG. 3A, since the fin 11 can be completely stored in the tab side wall 12, the trouble can be recovered without removing the fin even if a trouble or the like occurs in the focusing tab. Can be made.
[0021]
When aligning the wire rings, as shown in FIG. 3B, the fins 11 arranged at four positions protrude so as to obtain the coil outer diameter set in the tab side wall 12 by the driving device. Let When the fin 11 protrudes into the tab side wall 12, the wire ring 1 falling into the converging tab falls along the taper of the fin 11 and is aligned on the iris as shown in FIG. 2 (b). It can be accumulated to form an inscribed circle.
[0022]
According to the present invention, since the fin shape has a taper, it is not necessary to create a gap in the middle of the converging tab that causes the wire to be caught, and the fin can be installed in the traveling direction of the wire rod. In addition, since a fin having a taper is used, the wire rod ring can always be centered along the taper, and the taper portion has an interference effect of dropping the wire rod ring, so the wire rod ring is always placed at a fixed position. It becomes possible to focus, and a coil with a predetermined outer diameter and a good winding shape can be focused according to the amount of protrusion of the fin into the tab.
[0023]
In this example, four fins are arranged at equal intervals, but it is also possible to have six or more fins. If the number of fins arranged is less than 4, it is not preferable since the wire ring pops out. However, if the number of fins is increased too much, the structure is too complicated and the effect of providing fins is reduced. Usually, it is preferable to arrange 4 to 6 places.
[0024]
Next, an example in which the ring-shaped wire is dispersed, the coil outer diameter is changed, and the coil density is increased will be described with reference to FIG.
[0025]
As shown in FIGS. 4A to 4D, a series of operations for alternately approaching and moving away the four fins 11 having a tapered shape from the center direction of the nose cone 4 is repeated. That is, the wire ring 1 is in the lower position in FIG. 4A, the right position in FIG. 4B, the upper position in FIG. 4C, and the left position in FIG. The position control of the four fins 11 is sequentially performed according to the drop speed of the wire ring. As a result, the falling wire ring 1 is in a razor motion state within the focusing tab with the nose cone 4 as the center, and the wire ring is scattered on the iris and can be focused on a high-density coil.
[0026]
The outer diameter of the focusing coil can be reduced by increasing the amount of protrusion of the fins into the focusing tab, and conversely by decreasing the amount of protrusion, the coil can be increased by large diameter. Therefore, in order to obtain the set outer diameter of the coil, the drive device is controlled by the fin position control device, and the positions of the four fins are set to either the large diameter side or the small diameter side. good.
[0027]
As a driving device for moving the fins, for example, a motor, an air cylinder, a hydraulic cylinder, or the like can be used. That is, at least one fin driving device capable of driving the entire fin, or a driving device is provided for each fin, and the driving device is driven by being controlled by the fin position control device. The in / out position can be individually controlled to a predetermined position.
[0028]
【The invention's effect】
In the present invention, since a tapered fin is used, there is no possibility of the wire ring being caught on the fin, and there is no restriction on the fin installation location. Further, the outer diameter can be surely restricted by having the taper function, and the remarkable effect is obtained that a focusing coil having a large diameter and a small diameter can be obtained or a focusing coil having a high density can be obtained.
[Brief description of the drawings]
FIG. 1 is an overall view of a wire rod focusing apparatus.
FIG. 2 is a diagram for explaining a shape of a fin having a taper disposed on a side wall of a tab.
FIGS. 3A and 3B are views showing fins arranged on a tab side wall, wherein FIG. 3A shows a state in which the fin is stored on the tab side wall, and FIG. 3B shows a state in which a predetermined amount protrudes from the tab side wall;
FIG. 4 is a diagram illustrating a series of repetitive operations in which a fin is protruded from and retracted from a tab side wall and a wire ring is dispersed.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Ring-shaped wire 2 Tab roller 3 Focusing tab 4 Nose cone 5 Iris 6 Carrier 7 Coil plate 8 Stem 9 Door pin 10 Wire part 11 Fin 12 Tab side wall α Tapered angle of fin

Claims (4)

In a wire rod focusing method in which a wire rod is converged while dropping substantially horizontally with a ground in a tub, a taper descending toward the center of the tab at a taper angle of 30 to 70 ° with respect to the horizontal direction above the iris and below the tip of the taper A wire rod converging method comprising: arranging a plurality of plate-like fins having a tapered lower portion descending to be retractable on a tab side wall, and moving a falling wire rod ring toward a center direction by the fins and aligning them at all times. In a wire rod focusing method in which a wire rod is converged while dropping substantially horizontally with a ground in a tub, a taper descending toward the center of the tab at a taper angle of 30 to 70 ° with respect to the horizontal direction above the iris and below the tip of the taper A plurality of plate-like fins having tapered lower portions that descend to the tab side wall are arranged on the tab side wall, and the plurality of fins are individually moved toward and away from the center of the focusing tab, thereby converging the falling wire ring along the taper of the fin. A wire converging method characterized in that the wire ring is dispersed by moving the tab in the center direction. In a wire concentrator for converging while dropping a wire ring into a tub substantially horizontally with respect to the ground, the taper descends toward the center of the tab with a taper angle of 30 to 70 ° with respect to the horizontal direction and descends below the tip of the taper. A wire rod concentrator comprising: a plurality of plate-like fins having tapered lower portions arranged so as to be retractable on a tab side wall; and a drive device that allows the fins to be projected and retracted in a converging tab.   The wire rod concentrator according to claim 3, further comprising a fin position controller that controls a position of the fin.

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