JP2013023716A - Dipping treatment device for wire rod coil - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dipping treatment device for a wire rod coil, which is excellent in equipment cost and in energy cost and can perform dipping treatment evenly.SOLUTION: The dipping treatment device for a wire rod coil is composed of: a hook 1 for hanging a wire rod coil 2; and a treatment tank 3 filled with a treatment liquid 4; wherein the hook 1 has one or more members 5 for separation, separating the wire rod coil 2 from the hook 1, and the hook 1 is lowered to the inside of the treatment tank 3, thus the wire rod coil 2 is dipped into the treatment liquid 4.

Description

  The present invention relates to a wire coil immersion treatment apparatus, and more particularly, to a wire coil immersion treatment apparatus suitable for pickling treatment and surface lubrication treatment.

  Before the wire coil is drawn, descaling and surface lubrication are generally performed. The descaling treatment removes the scale on the surface of the wire that may interfere with the surface lubrication treatment. As a method for removing the scale, there are chemical methods such as pickling, and mechanical methods such as shot blasting and bending. Among them, pickling treatment is the most advantageous method from the viewpoint of productivity.

  In general, zinc phosphate, metal soap, lime soap or the like is used for the surface lubrication treatment. At that time, if the immersion of the lubricant in the wire coil is insufficient, the formation of the lubricating film becomes incomplete, and problems such as seizure and wrinkles occur during wire drawing. Hereinafter, the pickling treatment and the surface lubrication treatment are collectively referred to as immersion treatment.

  When performing the immersion treatment of the wire coil, a method of conveying the wire coil 2 suspended from the hook 1 and immersing it in the treatment liquid 4 in the treatment tank 3 as shown in FIG. However, the wires overlap and become dense at the contact portion between the hook 1 and the wire coil 2 and in the vicinity thereof. For this reason, in the case of pickling treatment, there is a problem that scale remains, and in the case of surface lubrication treatment, the formation of a film becomes insufficient.

  As a method for improving the above problem in the hook contact portion and the vicinity thereof, for example, Patent Document 1 discloses a method in which a dipping process is performed while applying vibration to a coil and rotating the coil on the hook.

  Patent Document 2 discloses a method of pickling while rotating a coil by a driving roller or a stand in a pickling tank.

  Patent Document 3 discloses a method of pickling while rotating a coil by moving a pair of pipe bodies arranged in a pickling tank up and down.

  Patent Document 4 discloses a method for improving descalability by pickling a coil while blowing gas.

JP 54-114438 A Japanese Patent Laid-Open No. 3-68789 Japanese Utility Model Publication No. 5-81274 JP-A-8-269758

  In the method described in Patent Document 1, contact wrinkles may occur when the coil is rotated on the hook. In addition, in order to rotate by vibration, not only a powerful vibration device is required, but also the entire equipment must have a structure that can withstand vibration.

  In the method using the driving roller described in Patent Document 2, yellow rust is newly generated during descaling at a site outside the acid solution, which may impair the appearance quality. On the other hand, in the method using the gantry in the pickling tank, wrinkles may occur at the contact portion between the gantry and the coil. Further, since the gantry is in the acid solution, maintenance such as maintenance of the coil contact portion becomes difficult.

  In the method described in Patent Document 3, a large-scale apparatus is required, so that a vast space must be ensured and equipment costs are increased. In addition to the hook, power for moving the pair of pipe bodies arranged in the pickling tank up and down is also required, which is not preferable in terms of energy cost.

  In the method described in Patent Document 4, the gas effect may not be sufficiently obtained at the contact portion between the coil and the hook. In addition, an apparatus and an air line for producing compressed air such as a compressor are required, and the air line must be installed so as to be able to move together with the hook. Therefore, it is not suitable for an automatic continuous line that performs processing in a plurality of tanks.

  As described above, in the prior art, there has been a problem in quality or equipment caused by insufficient contact with the processing liquid during the dipping process of the wire coil.

  Accordingly, an object of the present invention is to solve the above-described problems of the prior art and to provide a wire coil dipping apparatus capable of performing dipping without unevenness.

  As a result of various investigations on an immersion treatment apparatus in which neither a problem in quality nor a problem in equipment occurs, the present inventors have obtained the following findings (A) to (D).

  (A) When performing immersion treatment of a wire coil, in order to make it contact with a liquid uniformly, it is necessary to move the contact part of a wire coil and the hook which hangs it in the middle of immersion treatment.

  (B) From the viewpoint of equipment cost and energy cost, it is preferable to use only the power for moving the hook up and down and the power as the power source for moving the contact portion between the wire coil and the hook.

  (C) The apparatus needs to be as simple as possible in terms of maintenance. In particular, since the members in the treatment tank are difficult to maintain, it is desirable that they should not be used as much as possible, or limited to simple members that are less likely to be damaged.

  This invention is completed based on said knowledge, and makes it a summary to the immersion treatment apparatus of the wire coil shown to following (1)-(5).

  (1) A wire coil dipping apparatus comprising a hook for hanging a wire coil and a treatment tank filled with a treatment liquid, wherein the hook separates the wire coil from the hook. An apparatus for dipping a wire coil, comprising the above separating member and dipping the wire coil in a treatment liquid by lowering the hook into a treatment tank.

  (2) In the middle of lowering the hook in the treatment tank, by stopping the lowering of the separating member, the separating member is raised relative to the hook, and the wire coil is moved from the hook. The wire coil immersion treatment apparatus according to (1), wherein the wire coil immersion treatment apparatus is separated.

  (3) The wire coil immersion treatment apparatus according to (1) or (2), wherein the treatment tank includes a stand for supporting the separation member.

  (4) The wire coil immersion treatment apparatus according to any one of (1) to (3), wherein the separating member is provided on one side of the side surface of the hook.

  (5) The wire coil immersion treatment apparatus according to any one of (1) to (3), wherein the separation member is provided on both sides of the side surface of the hook.

  According to the present invention, even at the contact portion between the wire coil and the hook, the wire coil uniformly contacts the processing liquid and does not cause a quality problem. In addition, the present invention does not require a special power source other than the vertical movement of the hook and the power for conveyance, so that maintenance is easy and the cost of equipment and energy is excellent. The immersion treatment apparatus for wire coil according to the present invention is particularly suitable for pickling treatment and surface lubrication treatment for scale removal performed before wire coil drawing.

It is the (a) side view and (b) front view which showed the conventional immersion treatment apparatus typically. It is the (a) side view and (b) front view which showed roughly the state before the immersion of the immersion treatment apparatus which concerns on this invention. It is the (a) side view and the (b) front view which showed roughly the state during the immersion process in which the wire coil was suspended by the hook of the immersion processing apparatus which concerns on this invention. It is the (a) side view and the (b) front view which showed roughly the state in the immersion process in which the wire coil was suspended by the member for isolation | separation of the immersion treatment apparatus which concerns on this invention. It is the side view which showed an example at the time of installing a support stand in the side part of a processing tank in the immersion treatment apparatus which concerns on this invention. In the immersion processing apparatus which concerns on this invention, it is the side view which showed the other example at the time of installing a support frame in the side part of a processing tank. In the immersion treatment apparatus according to the present invention, (a) a side view and (b) a CC cross-sectional view showing an example in which a support frame is installed on a side surface of a treatment tank and a receiving-type mounting bracket is used. . In the immersion processing apparatus which concerns on this invention, it is the side view which showed an example at the time of using an L-shaped separation member without using a support stand. It is the side view which showed an example at the time of using the T-shaped separation member without using a support stand in the immersion treatment apparatus which concerns on this invention. In the immersion treatment apparatus according to the present invention, it is a side view showing another example when a T-shaped separation member is used without using a support frame. In the immersion processing apparatus which concerns on this invention, it is the side view which showed an example at the time of using a C-shaped separation member without using a support stand.

  FIG. 2 is a diagram schematically showing a state before immersion of the immersion treatment apparatus according to the present invention. The immersion treatment apparatus of the present invention includes a hook 1 for suspending the wire coil 2 and a treatment tank 3 filled with a treatment liquid 4.

  In FIG. 2, a separating member 5 used for separating the wire coil 2 from the hook 1 is provided on one side of the side surface of the hook 1 so as to be slidable up and down. The separating member 5 may be provided only on one side of the side surface of the hook 1 or may be provided on both sides.

  Although there is no restriction | limiting in particular about the material of the member 5 for isolation | separation, Weathering steel (SMA400AW etc.), stainless steel, etc. can be used. Moreover, in order to prevent the contact flaw of the wire coil 2, it is preferable to chamfer with the grinder etc. to the upper surface part which contacts the wire coil 2 of the member 5 for separation, or to perform resin coating etc. .

  The separating member 5 can be attached to the hook by, for example, a mounting bracket 6. The attachment bracket 6 may have any shape as long as it can be attached to the hook 1 with a structure that allows the separating member 5 to move only upward. The method for fixing the mounting bracket 6 to the hook 1 is not particularly limited and may be welded or bolted. The mounting bracket part is preferably subjected to FRP treatment in order to ensure corrosion resistance.

  The treatment tank 3 contains a treatment liquid 4. There is no restriction | limiting in particular about the kind of process liquid, Surface lubricants, such as pickling liquids, such as hydrochloric acid and a sulfuric acid, or zinc phosphate, a metal soap, a lime soap, can be used.

  A stand 7 for supporting the leg portions 5a and 5b of the separating member 5 can be installed in the treatment tank 3 as necessary. The support frame 7 is not particularly limited as long as it is made of a material excellent in acid resistance, and a concrete block, acid-resistant stainless steel, a steel material subjected to FRP treatment, or the like can be used. The support frame 7 may be installed at the bottom of the processing tank 3 or may be installed at the side surface. When the support frame 7 is installed at the bottom of the processing tank 3, it is preferable to perform a process for preventing a fall, preventing a movement, and the like.

  As shown in FIG. 3, the hook 1 is lowered into the treatment tank 3 so that the wire coil 2 is completely immersed in the treatment liquid 4. At this time, when the support frame 7 is installed in the processing tank 3, the support frame 7 is arranged immediately below the legs 5 a and 5 b of the separation member 5. When the lower ends of the leg portions 5a and 5b of the separating member 5 come into contact with the upper end of the support frame 7, the descent is stopped, and the dipping process is started in this state.

  In the contact portion between the wire coil 2 and the hook 1 shown by A in FIG. 3, the immersion may be insufficient. Therefore, after performing immersion treatment for a certain time in the state of FIG. 3, the hook is further lowered. At this time, as shown in FIG. 4, since the legs 5 a and 5 b of the separating member 5 are in contact with the support base 7, only the hook 1 is lowered, and the position of the body portion 5 c of the separating member 5 is Ascends relative to the hook 1. As a result, the wire coil 2 is suspended by the body portion 5c of the raised separating member 5.

  When the contact portion A between the wire coil 2 and the hook 1 in the state shown in FIG. 3 is in the state shown in FIG.

  As mentioned above, although the case where the support frame 7 was installed in the bottom part of the processing tank 3 was demonstrated in detail, as shown to FIGS. 5-7, for example, the immersion treatment apparatus of the wire coil which concerns on this invention is not limited to this. The support gantry 7 may be installed on the side surface of the processing tank 3. Also in these examples, by further lowering the hook 1, the relative position of the separating member 5 in contact with the support base 7 is raised, and the treatment liquid 4 penetrates into the contact portion of the wire coil 2 with the hook 1. The easy state is the same as in the above example. 5 and 6, two support frames 7 are provided, but either one may be used. In the example of FIG. 7, as shown in the cross-sectional view, the separating member 5 is attached to the hook 1 so as to move freely only in the upward direction by using a receiving-type fitting 6a. Even in such a configuration, as in the above-described example, by lowering the hook 1, the relative position of the separation member 5 in contact with the support base 7 can be raised, and the wire coil 2 can be separated from the hook 1. Become.

  Moreover, as shown in FIGS. 8-11, it can also be set as the structure which lengthens so that the leg part 5a of the member 5 for isolation | separation may reach the bottom part of the processing tank 3, without using the support stand 7. FIG. In these cases, in order to prevent the separating member 5 from being caught when the wire coil is hung on the hook, the separating member 5 can be made longer by the leg on the opposite side where the wire coil is inserted. Limited to portion 5a.

  FIG. 8 is a view showing an example in which the L-shaped separating member 5 is used. Since the leg 5a of the separating member 5 is in contact with the bottom of the processing tank 3, the relative position of the separating member 5 rises when the hook 1 is lowered, and the wire coil 2 is separated from the hook 1. Can do. As shown in FIG. 8, a support base 8 having a groove for supporting the leg 5 a of the separation member 5 may be installed at the bottom of the processing tank 3 as necessary.

  FIG. 9 is a view showing an example in which a T-shaped separating member 5 is used. Compared to the case where the L-shape is used, the mounting bracket 6 can be installed at two places above and below the body portion 5c of the separating member 5, so that the load applied to the mounting bracket portion can be distributed. .

  FIG. 10 is a view showing another example of the case where the T-shaped separating member 5 is used. Although the load applied to the mounting bracket portion increases, the mounting bracket 6 can be installed only on the body portion 5 c of the separating member 5. However, in this case, it is necessary to provide the fall prevention part 5d on the mounting bracket 6 so that the separating member 5 does not fall.

  FIG. 11 is a view showing an example in which a C-shaped separating member 5 is used. With this configuration, the mounting bracket 6 can be installed on both the legs 5a and 5b of the separating member 5, so that the load applied to the mounting bracket portion is distributed and the separating member 5 is moved up and down. Can make it easier.

  9 to 11, the support base 8 shown in FIG. 8 may be installed at the bottom of the processing tank 3.

  According to the present invention, even at the contact portion between the wire coil and the hook, the wire coil uniformly contacts the processing liquid and does not cause a quality problem. In addition, the present invention does not require a special power source other than the vertical movement of the hook and the power for conveyance, so that maintenance is easy and the cost of equipment and energy is excellent. The immersion treatment apparatus for wire coil according to the present invention is particularly suitable for pickling treatment and surface lubrication treatment for scale removal performed before wire coil drawing.

1. Hook 2. 2. Wire coil 3. 3. Processing tank 4. Treatment liquid Separating members 5a, 5b. Leg 5c. Body part 5d. 5. Fall prevention part Mounting bracket 6a. 6. Receptacle mounting bracket 7. Support stand 8. Support base

Claims (5)

  A wire coil dipping apparatus comprising a hook for hanging a wire coil and a treatment tank filled with a treatment liquid, wherein the hook separates the wire coil from the hook. An apparatus for dipping a wire coil, comprising a member for use, and dipping the wire coil in a treatment liquid by lowering the hook into a treatment tank.   In the middle of lowering the hook in the processing tank, by stopping the lowering of the separating member, the separating member is raised relative to the hook, and the wire coil is separated from the hook. The wire coil immersion treatment apparatus according to claim 1.   The wire coil immersion treatment apparatus according to claim 1, further comprising a mount for supporting the separation member in the treatment tank.   The wire coil immersion treatment apparatus according to any one of claims 1 to 3, wherein the separating member is provided on one side of the side surface of the hook.   The wire coil dipping apparatus according to any one of claims 1 to 3, wherein the separating member is provided on both sides of the side surface of the hook.

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