JP2001009519A - Wire rod coil hook striking face position shifting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device which can perform shifting of a wire rod coil hook striking face for eliminating a surface treatment failure at a portion where the wire rod coil strikes on a hook, even if a wire rod coil is of weak kneed, when a surface treatment such as a pickling treatment, a coating treatment is performed by dipping the wire rod coil in a surface treatment liquid under a condition that the wire rod coil is hooked. SOLUTION: This device has an operation container 1 for temporarily accommodating a wire rod coil W being transferred as it is hooked after a pickling treatment or a coating treatment is performed under a condition that it is hooked in a standing posture, and a pair of wire rod coil replacing shafts 3L, 3R extending horizontally. The wire rod coil W being hooked in the operating container 1 is replaced with the replacing shafts 3L, 3R in a standing posture condition. The device is also equipped with the wire rod coil replacing rotation device for moving the replaced wire rod coil W in circumferencial direction for a given volume by rotating the replacement shafts 3L, 3R for a short time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for performing surface treatment such as pickling treatment or coating treatment on a wire coil in a state where the wire coil is hooked. The present invention relates to a device for shifting a hook contact surface position of a wire coil, which shifts a hook contact surface of a wire coil in order to eliminate a surface treatment defect.

[0002]

2. Description of the Related Art In the production of a wire (steel wire), a scale (oxide film) adheres to the surface of a hot-rolled wire or a wire that has been subjected to heat treatment during patenting or drawing. Therefore, a wire coil (having a form in which a long wire is wound in a coil shape) is immersed in an acid solution such as sulfuric acid or hydrochloric acid to perform pickling treatment for removing scale. In the case of drawing a wire, a coating treatment is performed on the surface of the wire after pickling to serve as a carrier for assisting the introduction of a lubricant into a die or to form a strong lubricating film.

For surface treatment such as pickling and coating of a wire coil, a plurality of wire coils are immersed in a processing solution in a processing tank with a plurality of wire coils being hung upright on a C-shaped hook (hairpin hook). It is done by that. in this case,
Since the treatment liquid does not sufficiently penetrate into the hook contact surface inside the wire coil contacted with the C-shaped hook, it is necessary to solve the problem that pickling failure or coating failure occurs at the hook contact surface of the wire coil. In addition, poor pickling in the pickling treatment means that scale residue occurs, and defective coating in the coating treatment means that a portion where no film is formed occurs.

For this reason, a wire coil reversing device has been conventionally known as a device for shifting the position of the hook contact surface of a wire coil during processing. FIG. 5 is a diagram for explaining the operation of shifting the position of the hook contact surface of the wire coil by the wire coil reversing device.

In FIG. 5, T is a long inclined base having an inclined surface. The inclined table T is disposed at the bottom of a coating tank (not shown) for coating processing filled with a coating liquid.
It can be moved up and down by the operation of a driving device provided outside the processing tank. As shown in FIG. 5 (a), the wire coil W is immersed in a processing liquid in a state of being hung in a standing posture on a C-type hook F suspended by a crane and subjected to a coating treatment. Then, during the processing, the tilting base T is raised to push the wire coil W upward.
Thereby, as shown in FIG. 5B, the wire coil W rotates counterclockwise by a small angle because of the inclined surface. Next, when the inclined base T is lowered and the wire coil W is supported by the C-shaped hook F again, the hook contact surface of the wire coil W shifts from the position P to the position P 'as shown in FIG.
Therefore, the position of the hook contact surface of the wire coil W is shifted by moving the wire coil W by a required amount in the circumferential direction by repeating the intermittent pushing operation of the wire coil W by the inclined table T a required number of times. The wire coil W after the displacement is immersed in the processing liquid until the remaining time required for the coating process has elapsed.

[0006]

However, in the above-mentioned conventional device (wire coil reversing device), when the hook contact surface is displaced, the wire coil hung on the C-shaped hook in an upright posture is placed under the wire coil. Because it is made to push up by lifting the inclined platform arranged in
There were the following problems.

That is, in the case of such a weak wire coil having a wire diameter as thin as 2 to 3 mm or less and an outer coil diameter as small as 500 to 600 mm or less, the wire coil package is not circular but has a short vertical direction. It deforms into an elliptical shape, which makes it difficult to handle and reduces the work efficiency in the next step. In addition, the wires are entangled due to the deformation of the coil package, and the wire drawing workability is significantly reduced due to disconnection or the like in the next step. Further, the wire coil may fall down in the coil axis direction due to the pushing up by the inclined table, and the wire coil on the tip side of the C-shaped hook may fall from the hook.

As described above, the wire coil reversing device cannot be applied to a wire coil having a weak stiffness, and the hook contact surface position is manually shifted. That is,
In the middle of surface treatment such as pickling treatment and coating treatment, once the hooked wire coil is transported to the wire coil sorting site with a crane, where the position of the hook contact surface is manually shifted by the operator, Thereafter, a method of returning to the processing line again is employed. For this reason, the flow of automation was hindered, and productivity was poor.

SUMMARY OF THE INVENTION It is an object of the present invention to eliminate defects in surface treatment at a hook contact surface portion of a wire coil in a surface treatment performed by immersing the wire coil in a surface treatment solution in a state of being hung on a hook. In order to shift the position of the hooking surface of the wire coil in order to avoid the problem of deformation of the wire coil packing and entanglement of wires, even if the wire coil is weak, It is an object of the present invention to provide an apparatus for shifting the position of a hook contact surface of a wire rod, which can shift the position.

[0010]

In order to achieve the above object, a first aspect of the present invention is to transport a surface-treated wire coil in a state of being hooked in an upright posture while being hooked. It has a work tank for temporarily storing, and a pair of wire coil replacement shafts extending horizontally, and the pair of wire coil replacement shafts holds the hooked wire coil in the work tank in an upright posture state. And a wire coil replacement rotating device for rotating the pair of wire coil replacement shafts by a required amount in the circumferential direction by rotating the pair of wire coil replacement shafts, wherein a hook contact surface position of the wire coil is provided. It is a shifting device.

According to a second aspect of the present invention, there is provided the wire coil surface shifting device according to the first aspect, further comprising a shower device for showering the wire coil replaced on the wire coil replacement shaft. It is assumed that. According to a third aspect of the present invention, in the device for shifting the hook-contact surface position of the wire coil according to the first or second aspect, the wire coil replacement rotation device has the pair of wire coil replacement shafts, and these are arranged in the same direction. A shaft rotating device for rotating the shaft for a short time, and the shaft rotating device is mounted, and the wire coil replacing shaft can be advanced into and retracted from the work tank so as to allow the wire coil replacement shaft to enter the inside of the wire coil hooked in the work tank. And a mobile trolley.

A description will be given of a case in which the hook contact surface position shifting device of the present invention having the above-mentioned features is applied to, for example, an acid pickling process. The pick-up process is described below. The wire coil immersed for a predetermined time is transported from the first processing tank to the work tank by the crane with the hook hooked. At the location of the work tank, there is provided a wire coil changing rotation device having a pair of left and right wire coil changing shafts SL and SR extending horizontally in parallel. Then, a pair of wire coil replacement shafts SL and SR are inserted into the work tank inside the hooked wire coil so as to sandwich a horizontally extending hook shaft therebetween, and then the C-shaped hook is lowered. The wire coil is C
The hooks are switched from the mold hooks to the wire coil replacement shafts SL and SR in an upright posture state and rotatably supported.

Next, the pair of wire coil replacement shafts
The SL and SR are rotated in the same direction for a short time, and the wrapped wire coil is rotated and moved in the circumferential direction by, for example, about ８ (45 °). Thereafter, when the lowered C-shaped hook is raised and hooked again, the wire coil has a hook contact surface at a position before the wire coil is replaced on the wire coil replacement shafts SL and SR (the acid in the first processing tank). The hook is hooked in a state where the hook is shifted from the position where the washing process has been performed), thereby completing the position shift of the hook contact surface. The displaced wire coil is conveyed to the second processing tank, and subsequently pickled.

As described above, when the position of the hook contact surface is shifted, the wire coil hung on the C-shaped hook in the upright posture is replaced with a pair of wire coil replacement shafts extending horizontally, and the pair of replacement shafts is replaced with the same. Direction, the wire coil can be smoothly moved in the circumferential direction by a required amount without applying a large external force, unlike the conventional wire coil reversing device. Even if it is a weak wire coil,
The position of the hook contact surface of the wire coil can be shifted without causing problems such as deformation of the wire coil package and tangling of the wires.

The hook contact surface position shifting device according to the present invention is preferably provided with a shower device for performing showering with weakly acidic water or the like on the wire coil replaced on the wire coil replacement shafts SL and SR. When the wire coil wound on the wire coil replacement shafts SL and SR is moving in the circumferential direction, showering is performed on the wire coil by a shower device to prevent foreign matter from remaining on the wire coil surface. In addition to the cleaning, the wire coil surface can be prevented from being damaged due to the circular movement of the wire coil in contact with the coil replacement shafts SL and SR.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing a pickling treatment line provided with a device for shifting a hook coil surface position of a wire coil according to an embodiment of the present invention, showing a state where a pair of wire coil replacement shafts are retracted. FIG. 2 is a plan view showing a state in which the pair of wire coil replacement shafts in FIG. 1 are advanced to complete the replacement of the wire coil and the replacement shaft is rotated. FIG. 3 is a side view as viewed in the direction of the arrow A in FIG.

As shown in FIGS. 1 to 3, in this embodiment, the pickling treatment line is configured such that the wire coil W to be pickled is first set to a C-type hook F in an upright posture for a predetermined time. A first treatment tank 11 for pickling, and a wire coil W, which is juxtaposed with the tank 11 and has been partially pickled, is conveyed from the first treatment tank 11 while being hooked. A work tank 1 for temporarily storing the hook contact surface to shift the position of the hook contact surface;
A second treatment tank for performing pickling treatment on the wire rods W whose hook contact surfaces are shifted in position; Each tank 1
Each of 1, 1, and 1 has a box shape whose upper side is open.

Further, the pickling treatment line includes a rail 2a,
2a, a movable trolley 2 that can move forward and backward with respect to the work tank 1, and a pair of left and right wire coil replacement axes 3L and 3R mounted on the movable trolley 2 and extending horizontally in parallel. And a shaft rotating device 3 for rotating the 3L and 3R in the same direction. The wire rod changing shafts 3L, 3R made of steel pipe are supported by guide rollers 1a, 1a attached to the shaft through hole portion of the work tank 1 so as to be able to advance and retreat and rotate. When inserted into the work tank 1, the shaft tip is rotatably supported by bearings 1b, 1b attached to the inner wall surface of the work tank 1 in addition to the guide rollers 1a, 1a.

In the work tank 1, nozzle headers 4 and 4 as shower devices are disposed at the upper ends of the work tank walls on both sides extending in the same direction as the wire coil replacement shafts 3L and 3R. In the present embodiment, the nozzle headers 4, 4 eject a weakly acidic liquid as a showering liquid toward the wire coil W when the wire coil W wound on the wire coil replacement shafts 3L, 3R is rotating. A large number of nozzles 4a are provided at a required pitch.

The shaft rotating device 3 having the replacement shafts 3L and 3R, and the movable trolley 2 raise the wire rod W wound on the C-shaped hook F in the work tank 1 on the pair of wire coil replacement shafts 3L and 3R. Replace the shaft 3 in the posture state,
By rotating the L and 3R for a short period of time, a wire coil replacement rotating device for moving the replaced wire coil W by a required amount in the circumferential direction is configured. The wire coil changing and rotating device, the work tank 1 and the nozzle headers 4 and 4 constitute a device for shifting the hook contact surface position of the wire coil.

Hereinafter, the operation of the hook contact surface position shifting device configured as described above will be described with reference to FIGS. 1 to 3 and FIG. FIG. 4 is a diagram for explaining the operation of the hook contact surface position shifting device.

The wire coil W, which has been immersed in the acid solution in the first processing tank 11 for a predetermined time while being hooked on the C-shaped hook F in the upright posture, as shown in FIG. As it is, it is carried into the work tank 1 by the crane and is positioned at a predetermined position. When the wire coil W is positioned,
As shown in FIG. 4 (b), the movable trolley 2 moves forward, and the left and right wire coil replacement shafts are placed inside the wire coil W hooked in the work tub 1 with a horizontally extending hook shaft interposed therebetween. 3L and 3R enter (see FIG. 2).
Then, as shown in FIG. 4 (c), the replacement shafts 3L, 3L
The leading end of R reaches the bearings 1b, 1b on the inner wall surface of the work tank 1, and the movable carriage 2 is stopped.

Next, by lowering the C-shaped hook F for a short distance, the wire coil W is replaced from the C-shaped hook F to the wire coil replacement shafts 3L, 3R as it is in an upright posture (FIG. 4 (d)).

Thereafter, while operating the nozzle headers 4 and 4 to shower the showering liquid toward the wire coil W, as shown in FIG. By rotating the shafts 3L and 3R in the same direction for a short time, the replaced wire coil W is moved in the circumferential direction, and is rotated, for example, about 1/8 turn (45 °) (see FIG. 3).

Next, when the shower ring is stopped and the C-shaped hook F which has been lowered is raised, the wire coil W is positioned at the position where the hook contact surface was pickled in the first processing tank 11. The hook is hooked in a state where the hooks are shifted from each other, whereby the shift of the position of the hook contact surface is completed (FIG. 4F). Then, the hooked wire coil W is conveyed to the second processing tank 12 after the reloading shafts 3L and 3R are retracted together with the movable carriage 2, and subsequently pickled in the tank 12. .

As described above, when the position of the hook contact surface is shifted, the hooked wire coil W is replaced with a pair of horizontally extending wire coil replacement shafts 3L and 3R, and the pair of replacement shafts 3L and 3R are replaced. Unlike the conventional wire coil reversing device, the wire coil W can be smoothly moved in the circumferential direction without giving a large external force unlike the conventional wire coil reversing device, and the wire coil W is formed of a thin wire. Even if the wire coil is weak,
The position of the hook contact surface of the wire coil W can be shifted without causing problems such as deformation of the wire coil package and entanglement of the wires.

When the wire coil W wound on the wire coil replacement shafts 3L, 3R is moved in the circumferential direction,
Since the shower coil is used to perform showering on the wire coil W by the nozzle headers 4 and 4 as a shower device, the wire coil W makes a circular motion in contact with the coil replacement shafts 3L and 3R, so that the wire coil surface flaws are reduced. Occurrence can be prevented. The hollow wire coil replacement shaft 3
The L and 3R may have a structure in which the nozzle header is built in, and the wire coil W may be showered from the inside of the coil.

[0028]

As described above, according to the apparatus for shifting the surface position of the wire rod hook to the hook according to the present invention, the pickling treatment is performed by immersing the wire coil in the surface treatment liquid with the wire coil hung on the hook in an upright posture. When the position of the hook contact surface of the wire coil is shifted to eliminate the surface treatment failure at the hook contact surface portion of the wire coil in the surface treatment such as coating treatment, the wire coil hooked in the upright posture is horizontally moved. And a short time, the pair of replacement shafts are rotated in the same direction for a short time, so that unlike the conventional wire coil reversing device, the wire is smoothly applied without applying a large external force. The coil can be moved by a predetermined amount in the circumferential direction, and even if the wire coil is a weak wire coil, deformation of the wire coil package and Without causing a problem of entanglement such as shifting the position of the surface per hook of the wire coil can be performed. This makes it possible to automate surface treatment such as pickling treatment and coating treatment even for a wire coil having a weak rigidity, and it is possible to greatly improve productivity as compared with the related art.

[Brief description of the drawings]

FIG. 1 is a plan view showing a pickling treatment line provided with a device for shifting a hook contact surface position of a wire coil according to an embodiment of the present invention, showing a state in which a pair of wire coil replacement shafts is retracted. FIG.

FIG. 2 is a plan view showing a state in which a pair of wire coil replacement shafts in FIG. 1 are advanced to complete replacement of wire coils, and the replacement shaft is rotated.

FIG. 3 is a side view as viewed from an arrow A in FIG. 2;

FIG. 4 is a diagram for explaining the operation of the hook contact surface position shifting device of the present invention.

FIG. 5 is a view for explaining a position shifting operation of a hook contact surface of a wire coil by a conventional wire coil reversing device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Work tank 1a ... Guide roller 1b ... Bearing 2 ... Movable trolley 2a ... Rail 3 ... Shaft rotating device 3L, 3R ... Wire rod coil replacement shaft
4 Nozzle header 4a Nozzle 11 First processing tank 12 Second processing tank
W: Wire rod F: C-type hook

Claims (3)

[Claims] 1. A work tank for transporting and temporarily storing a wire coil surface-treated in a state where it is hooked in an upright posture while being hooked, and a pair of wire coil replacement shafts extending horizontally. The hooked wire coil in the work tank is hooked on the pair of wire coil replacement shafts in an upright posture state, and the pair of wire coil replacement shafts is rotated to rotate the wire coil. And a wire coil changing and rotating device for moving the wire coil in a required amount in the circumferential direction. 2. The device for shifting the hook contact surface position of a wire coil according to claim 1, further comprising a shower device for showering the wire coil replaced on the wire coil replacement shaft. 3. The wire coil replacement rotating device has the pair of wire coil replacement shafts, and rotates the shaft in the same direction for a short period of time. 3. The hook contact surface of the wire coil according to claim 1 or 2, comprising a movable carriage that can move forward and backward with respect to the work tank so that the wire coil replacement shaft can enter the inside of the wire coil on which the hook is hooked. Position shifting device.