JP4842082B2 - Horizontal suspension jig, surface treatment apparatus, and surface treatment method for long material - Google Patents

Description

  The present invention relates to a horizontal hanging jig used when performing surface treatment in a treatment liquid by hanging a long material such as an aluminum building material in a horizontal hanging state, a surface treatment apparatus using the jig, and a surface treatment method. It is.

Aluminum long materials such as truck tilt plates, housing building materials and building building materials are anodized on the surface, and then various types such as electrolytic coloring, dyeing, sealing, electrodeposition coating, drying, etc. Usually, it is used after being subjected to surface treatment. In order to perform these surface treatments, the long material to be treated is sequentially fed to various treatment tanks such as an alkaline aqueous solution tank for pretreatment, an acidic aqueous solution tank, and a washing treatment tank for washing according to the intended treatment. Then, the long material to be treated is immersed in various treatment liquids, and then drained, and sent to a drying or baking furnace.
In the series of processes, it is extremely important from the viewpoint of productivity to process a large number of long materials to be processed at one time. Therefore, a method is generally used in which a large number of long materials to be processed are suspended in a vertical direction and are dipped in a processing solution. According to this method, the long material to be treated is drained and dried until the long material to be treated is removed from the treatment liquid and enters a heating furnace such as a drying furnace or a baking furnace. The residual liquid of the long material to be treated that is suspended may hang down to the dried portion of the long material to be treated that is suspended downward. Then, the portion becomes a dent and becomes a defective portion. This sagging becomes noticeable especially when passing through a heating furnace. The liquid draining time is scheduled to be about 10 to 15 minutes, but it is important that the surface of the long material to be processed is almost dried by performing liquid draining during this period.

2. Description of the Related Art Conventionally, as a method for performing surface treatment of a long material such as an aluminum building material, a horizontal material long material surface treatment apparatus excellent in processing efficiency has been proposed. This surface treatment apparatus is a method in which a long material is held horizontally and immersed in a surface treatment liquid in a treatment tank, and a pair of left and right electric motors for driving these are provided for each left and right lifting body. The elevating body is configured to be located at the same level when the long material is immersed in the surface treatment liquid and at a different level when the long material is drained (see, for example, Patent Document 1). ).
According to this method, the left and right lifting bodies are individually driven by independent motors, so that the left and right lifting bodies are at the same level when in the immersion position, and at different levels when in the liquid draining position. Therefore, it is possible to immerse the long material in the processing tank so as not to be wasted during processing, and it is possible to reliably drain the long material by inclining the liquid when draining, so that the processing can be performed very efficiently. It is supposed to be possible.
Japanese Patent Laid-Open No. 09-041197

However, in the surface treatment apparatus disclosed in Patent Document 1, speed adjustment is possible on each of the left and right sides, and a complicated electric motor that interlocks so that the treatment frame does not come off the lifting body is required. There is a difficult point.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a surface treatment apparatus and a surface treatment method for a long material having a simple structure and a low equipment cost. In particular, a horizontal hanging jig used when performing surface treatment in the same length of the treated long material transverse hanging hung state treatment liquid in, and unnecessary complicated transfer device, the treatment liquid vertical It is an object of the present invention to provide a horizontal suspending jig for obtaining a long material free of traces and bubble traces, a surface treatment apparatus and a surface treatment method using the lateral suspending jig.

In the present invention, the jig is provided with a horizontal beam and a plurality of jig columns attached to the horizontal beam, and the jig is located at a position corresponding to the ends of the plurality of long members having the same length among the plurality of jig columns. The column is inclined at an angle of 6 degrees to 15 degrees on the other jig column side facing the vertical line of the horizontal beam, and the tilted jig column and the other end of the long material The side jig columns are attached in parallel with the same predetermined angle with respect to the vertical line of the horizontal beam, and the plurality of jig columns are identical to the inclined jig columns. Hold one end of the long material with the same length, hold the other end of the long material at a position higher than the one end, and hold it sideways on a jig column on the other end of the long material. holder for the attached, said predetermined angle holder which is attached to the angled jig pillars, the elongated member of the plurality of identical length It was decided to use a horizontal lifting jig elongated member is mounted so as to hold at right angles to the axial direction of the swash the jig pillar.

Using such a long material horizontal hanging jig, a plurality of identical lengths are attached to a jig column inclined so as to maintain a predetermined angle on the other jig column side facing the vertical direction of the horizontal beam. The above-mentioned problem can be solved by simply holding one end of the long material and holding the other end horizontally so that the other end is located above the one end and moving the horizontal hanging jig up and down relative to the treatment tank. be able to.
In addition, by configuring the long material horizontally hanging jig in this way, a large number of long materials can be held, and the treatment liquid flows along the long material and drops from the lower end of the long material, Since one end of the long material corresponding to the lower portion exists by an amount corresponding to the inclination angle of the attached jig column, there is an advantage that a range in which the processing liquid hangs down on the lower long material is narrowed.
Furthermore, by attaching the holder in this way, the load of the long material can be firmly received by the jig column inclined at a predetermined angle, and the long material and the conductive holder for feeding are brought into close contact with each other. The resistance can be lowered.
In addition, when the long material is kept at an angle of 6 degrees to 15 degrees with respect to the horizontal in the processing liquid, bubbles such as air bubbles generated on the surface of the long material or air entrained in the processing liquid are generated. To rise. That is, when the long material to be processed is a channel material or a hollow material having an opening below, even if bubbles concentrate on the channel part or the hollow part, the bubbles propagate upward through the channel part or the hollow part. Escape from the channel part or the hollow part terminal in, and there is an advantage that the bubble trace does not stick.
In addition, if this inclination is given to the inclined jig column, the processing liquid will not drip on the lower material, and the lower material will not be marked with the processing liquid. Will improve.

In the long material horizontal hanging jig of the present invention, the holding tool attached to the jig column which is inclined at a predetermined angle and holds one end of the plurality of long materials having the same length aligned is electrically conductive. A holding tool is preferred .

If the holder is configured in this way, one end of the long material is aligned and securely held, and power can be supplied to the long material.

A surface treatment apparatus for a long material according to the present invention is provided with a gate-type gantry that lays a rail on the upper surface of opposite side walls of a treatment tank, and can run on the rail, and the lateral beam of the gate-type gantry has a A surface treatment device for a long material constructed such that both ends of a horizontal material hanging jig are moved up and down by means of vertical movement provided on a gate-type gantry and the long material is dipped and pulled up in the treatment liquid in the treatment tank. It was.
With such a surface treatment device, it is possible to immerse and pull a long material into the treatment liquid by simple and simple operation, and the range in which the treatment liquid hangs down on the lower material is narrowed. In addition, the yield of the product is improved because the traces of the processing liquid and the traces of bubbles are not attached.

The surface treatment apparatus for a long material according to the present invention has a power supply rail laid on the upper surface of the opposite side walls of the treatment tank, and the horizontal beam of the horizontal suspension jig is lowered by lowering the horizontal suspension jig of the long material. You may comprise so that electric power may be supplied to a conductive holder by mounting on a rail.
With such a structure, when it is necessary to perform electrolytic treatment, it is possible to reliably supply power with a simple operation.

One of the surface treatment methods for a long material according to the present invention is a slanted horizontal suspension in which a plurality of long materials are arranged in a vertical row and attached to the above-described horizontal material jig for the long material according to the present invention. Next, using the surface treatment apparatus for the long material of the present invention, the horizontal suspending jig for horizontally suspending and holding the long material is immersed in the treatment liquid of the treatment tank to surface the long material. After the treatment, the horizontal suspension jig was pulled up from the treatment liquid, and the surface treatment method was used to drain the treatment liquid adhering to the long material.
According to this method, it is possible to immerse and pull a large amount of long materials into the processing liquid with a simple operation, and align one end of a plurality of long materials with a jig column inclined at a predetermined angle. The jig column on the other end side of the long material is inclined while holding the other end of the long material at a position higher than the one end, so that the treatment liquid drip from the lower end of the long material and is long. One end of the scale material will be shifted by the inclination angle of the attached jig column, so the range in which the treatment liquid will drip on the long material attached at the lower position will be narrowed, resulting in poor product finish due to pitting marks. It will be possible to prevent it.

Another one of the surface treatment methods for the long material of the present invention is to prevent the projection of a plurality of long materials from the side surfaces of the long material horizontal suspension jig of the present invention described above. In addition, the horizontal suspension jig of the present invention is provided with a plurality of rows arranged so that projections from the other end or one end are arranged in a staggered manner and held obliquely and then suspended horizontally. After the surface treatment is performed on the long material by immersing it in the treatment liquid of the treatment tank using the surface treatment apparatus for the material, the lateral suspension jig is pulled up from the treatment liquid and adhered to the long material. The surface treatment method of the long material for draining the treated liquid was used.
Even with this method, it is possible to immerse and pull a large amount of long material into the processing solution with a simple operation, and align and hold one end of multiple long materials of the same length on a jig column inclined at a predetermined angle. Since the jig column on the other end side of the long material is inclined while holding the other end of the long material at a position higher than the one end, the treatment liquid dripped from the lower end of the long material, and the long length Since one end of the material will be shifted by the inclination angle of the fixture column attached, the area where the treatment liquid will drip on the long material attached at the lower position will be narrowed, resulting in poor product finish due to pitting marks. Will be able to prevent. Furthermore, a uniform surface treatment can be performed without disturbing the current density.

According to the present invention, by adopting a long material horizontal suspension jig having a simple structure, it becomes possible to reliably remove the treatment liquid and prevent bubble trace adhesion . Accordingly, the surface treatment apparatus becomes simple with low capital investment, and the finished product of the long surface treatment material is simple and has a high finished product yield.

FIG. 1 is a side view for explaining the structure of the main part of a surface treatment apparatus for a long material according to the present invention.
A surface treatment apparatus 20 for a long material according to the present invention includes rails 21a and 21b laid on the upper surfaces of opposing side walls 5a and 5b of a treatment tank 5, and includes a portal frame 22 that can travel on the rails 21a and 21b. Both ends 3a and 3b of the horizontal beam 3 of the long horizontal suspension jig 1 of the present invention are suspended by the wires 25a and 25b on the horizontal beam 24 of the portal frame 22, and the wires 25a and 25b are supported for winding. The long material 2 to be processed is configured to be dipped and pulled up in the processing liquid 8 in the processing tank 5 by being moved up and down by a dedicated electric motor 27 via the parts 26a and 26b. Further, by rotating the electric motor 27 forward and backward, the long material 2 to be processed can be immersed and pulled up in the processing liquid 8 in the processing tank 5 together with the horizontal suspension jig 1. In the figure, 9 and 14 are holders, 23a and 23b are gate pillars constituting the portal frame 22, and 28a and 28b are power supply rails.

Next, the long hanging jig of the long material of the present invention will be described.
The long material horizontal hanging jig 1 of the present invention mainly comprises a horizontal beam 3 in FIG. 1 and a pair of jig columns 4 a and 4 b opposed to each other attached to the horizontal beam 3. At least one of the pair of jig pillars 4 a and 4 b is attached with an inclination so as to maintain a predetermined angle with respect to the vertical line of the horizontal beam 3.
Between the jig columns 4 a and 4 b, a number of long materials 2 are held obliquely and horizontally by the holders 9 and 14. In the figure, the solid line indicates that the horizontal suspension jig 1 has been lifted upward to make it drained, and the two-dot chain line indicates that the horizontal suspension jig 1 has been lowered and the long material 2 has been immersed in the treatment liquid 8. Is shown.

(First embodiment)
FIG. 2 is an enlarged view of the long material laterally hanging jig 1 according to the first embodiment of the present invention. In this embodiment, as shown in FIG. 2, one jig column 4a of the pair of jig columns 4a and 4b is attached perpendicularly to the longitudinal direction of the horizontal beam 3, and the other jig column 4a. Reference numeral 4b denotes an inclined jig column attached to the jig column 4a facing the longitudinal axis direction of the horizontal beam 3 with an inclination of 6 degrees to 15 degrees with a predetermined angle (θ).
A plurality of holders 9 and 14 for holding the long material 2 to be processed are attached to the inner sides of the pair of jig columns 4a and 4b facing each other. A plurality of identical length of the long material 2,2,2, ... is mounted so as to be straight corner with respect to the axial direction of the one end thereof inclined jig pillars 4b. The long materials 2, 2, 2,... Are attached at appropriate equal intervals according to the thickness of the long material 2 .

That is, the plurality of holders 9, 9, 9,..., 14, 14, 14,. It is good to attach so that adjustment is possible so that a position may shift to 4b. When one jig column 4a is vertically attached to the horizontal beam 3, the holder 9 attached to one jig column 4a is a jig in order to easily hold a long material of a certain length. It is preferable to make the holder above the column longer than the holder 9 below.
2, the holders 9, 9, 9,... Attached to one jig post 4a can have, for example, a spring type or screw type pin structure. If the pin structure is used, the long materials 2, 2, 2,... Can be easily detached. Further, if the lengths of the holders 9, 9, 9,... Are made variable, it is convenient because it can correspond to long materials having various lengths.

The other jig column 4 b is attached to be inclined so as to maintain a predetermined angle (θ) with respect to the vertical line of the horizontal beam 3.
The predetermined angle (θ) of the inclined jig column 4b is preferably 6 to 15 degrees. If the angle is maintained at an angle of 6 degrees or more, one end of a plurality of long materials 2, 2, 2,... When the other end of the long material 2, 2, 2,... Is held at a position higher than the one end and tilted and held on the side, When the material is lifted from the processing tank and drained, the treatment liquid flows toward the end 2b in the lower direction of the long material 2, and in the final stage of the liquid draining, the long material with the liquid drained below It flows downward without dripping onto 2. Accordingly, it is possible to prevent the product from being defective due to the dent. When the predetermined angle θ of the inclined jig column 4b exceeds 15 degrees, the ratio of the long materials 2, 2, 2,... The length is also limited, reducing the number of treatments per process and lowering the productivity. The angle of the long materials 2, 2, 2,... With the horizontal is not limited as long as the processing liquid flows toward the end 2b of the long material 2 in the low position direction. Will flow down quickly enough. When the angle exceeds 15 degrees, the proportion of the long materials 2, 2, 2,... Decreases in the height direction, and the number of treatments per time is reduced, thereby reducing productivity.

.. And 14, 14, 14,... Are preferably attached to the pair of jig columns 4a and 4b, for example, 5 to 10 sets.
Further, the holders 9, 9, 9,... And 14, 14, 14,... May be attached to the pair of jig columns 4a and 4b in only one row, Depending on the width, a plurality of rows such as two rows or three rows may be attached with appropriate intervals. By doing so, it is possible to perform surface treatment of a large amount of long material at a time.

The holders 14, 14, 14,... Attached to the inclined jig column 4b are preferably conductive holders.
This is to provide a current supply terminal for the electrolytic surface treatment.
It is desirable that the holders 14, 14, 14,... Are of a holding type and have sufficient strength to support the load of the long materials 2, 2, 2,. . The conductive holder may be attached to either of the jig columns 4a and 4b, but as shown in FIG. 2, the one attached to the jig column 4b on the lower side of the long material is always in close contact with its own weight. Therefore, the contact resistance is reduced, and power loss can be reduced during the electrolytic treatment, which is preferable. Conveniently, electric power can be supplied from one side of the horizontal beam by arranging the conductive holders on one jig post on one side.
The other electrode of the electrolytic treatment is disposed in the treatment tank.

4 and 5 illustrate a method of setting a long material on the horizontal hanging jig of the present invention.
FIGS. 4-a and 5-a are views of a state in which a long material is set on a horizontal hanging jig as seen from the side, and FIGS. 4-b and 5-b are FIGS. 4-a and 5-b, respectively. Sectional drawing along line AA 'or line BB' of a is shown.
When the holders 9, 9, 9,... And 14, 14, 14,... Are attached, as shown in FIGS. .. May be arranged and attached so as to be vertically arranged, or in the case of attaching a plurality of rows vertically, as shown in FIGS. Arrangements may be made so that they are mounted in a staggered manner so that the projections from each other do not overlap. In this case, it is preferable that the interval between adjacent rows is maintained to be equal to or greater than the thickness of the long material (7 cm in the figure), and the interval between the staggered lower long material is 2 cm or more. . If long materials are arranged in this way, a uniform surface treatment can be performed without disturbing the current density during the electrolytic surface treatment.

The arrows in the figure indicate the state in which the droplets of the processing liquid are falling. As shown in the figure, one end of a plurality of long materials 2, 2, 2,... Having the same length is held in alignment with the inclined jig column 4b, and the jig column 4a on the other end side of the long material 2 is held. If the other ends of the long materials 2, 2, 2,... Are tilted and held at a position higher than the one end, the liquid droplets of the processing liquid flow downward along the long materials. Drip from near the end. Since one end of the long material, which is below the dropping point of the liquid droplets, is shifted by the inclination angle of the jig column 4b attached, the range in which the treatment liquid hangs down on the lower long material is narrowed, and the vertical mark Defects due to If the tilt jig column 4b is tilted 6 degrees toward the jig column 4a facing the vertical line of the horizontal beam 3, surface treatment defects due to sagging will not occur.

(Second Embodiment)
FIG. 3 is an enlarged view of a long side-hanging jig 1 according to the second embodiment of the present invention.
As shown in FIG. 3, the long material horizontal hanging jig 1 according to the second embodiment includes a pair of jig columns 4 a, 4 b and one end of the long materials 2, 2, 2. The jig column 4b at a position corresponding to the portion is inclined at a predetermined angle (θ) of 6 to 15 degrees toward the other jig column 4a facing the vertical line of the horizontal beam 3, and The other jig column 4a is an inclined jig column attached in parallel to the jig column 4b attached at an inclination.
A plurality of holders 9, 9, 9,..., 14, 14 for holding the long material 2 to be processed are disposed inside the pair of inclined jig columns 4 a, 4 b facing each other. , 14,... Are attached. These holders 9, 9, 9,..., 14, 14, 14,... Are made of a plurality of long materials 2, 2, 2,. pillars 4a, so that the straight corner with respect to the axial direction of the 4b, and Nagashakuzai 2,2,2, ... the other end 2a, 2a, 2a, ... and one end 2b, 2b, 2b... Are attached at an appropriate equal interval according to the thickness of the long material 2 so as to be higher than 2b .

In this case, it is appropriate that the predetermined angle (θ) of the inclined jig column 4b is 6 degrees to 15 degrees as in the first embodiment.
The angle formed by the horizontal lengths of the long materials 2, 2, 2... Is not limited as long as the treatment liquid flows toward the end 2 b in the low position direction of the long material 2. The treatment liquid flows down sufficiently quickly.

  In addition, since the structure of the holder and the method for holding the long material are the same as those in the first embodiment, detailed description thereof will be omitted.

Next, the surface treatment apparatus for a long material of the present invention will be described.
As shown in FIG. 1, the long material surface treatment apparatus 20 of the present invention lays rails 21 on the upper surfaces of opposing side walls 5 a and 5 b of the treatment tank 5 into which the treatment liquid 8 is placed, and travels on the rails 21. A gate-type gantry 22 is provided, and both ends of the above-mentioned long-hanging horizontal jig 1 of the present invention are suspended by wires 25a, 25b on the horizontal beam 24 of the gate-type gantry 22, and the wires 25a, 25b are dedicated. This is a surface treatment apparatus for a long material which is constructed such that the long material 2 is dipped and pulled up in the treatment liquid 8 in the treatment tank 5 by being moved up and down by the winding support portions 26a and 26b.
In the long material surface treatment apparatus of the present invention, the power supply rails 28 are laid on the upper surfaces 5a and 5b of the opposing side walls of the treatment tank 5, and the long material horizontal suspension jig 1 is lowered to perform horizontal suspension treatment. It is preferable that the horizontal beam 3 of the tool 1 is placed on the feeding rail 28 to supply power to the conductive holder 14.
With such a structure, when it is necessary to perform electrolytic treatment, the horizontal hanging jig 1 of the long material 2 is lowered and the horizontal beam 3 of the horizontal hanging jig 1 is placed on the feeding rail 28. It is possible to reliably supply power with a simple operation of simply placing it.

In the surface treatment apparatus 20 for a long material of the present invention, a plurality of treatment tanks such as an alkaline aqueous solution tank for pretreatment, an acidic aqueous solution tank, a washing water treatment tank for washing, a treatment liquid tank for various treatments, etc. (not shown) are provided. It is arranged continuously, the rails are laid on the side walls of the plurality of treatment tanks, the gate-type gantry moves on the rails, and is immersed and pulled up in a predetermined treatment tank in the order of the process. Surface treatment is performed.
Only one set of long material horizontal hanging jigs 1 may be hung on one portal frame 22, or a plurality of sets of long material horizontal hanging jigs 1 according to the horizontal width of the treatment tank 5. May be hung. If the horizontal suspension jig 1 of a plurality of long materials is suspended, there is an advantage that a large amount of long materials can be surface-treated at a time.
Since each gate-type pedestal 22 includes winding support portions 26a and 26b connected to a dedicated electric motor 27, the surface treatment necessary for each long hanging jig 1 for each long material is performed according to a predetermined program. Can do.

Next, the surface treatment method for the long material of the present invention will be described.
In the long material surface treatment method of the present invention, the long material surface treatment apparatus of the present invention using the above-described long material horizontal suspension jig of the present invention is used.
First, a necessary number of long materials to be processed are attached to a long material horizontal hanging jig incorporated in the surface treatment apparatus of the present invention, and the long material is slantly horizontally suspended and held. As shown in FIG. 4, the mounting method may be arranged in a single vertical row, or as shown in FIG. 5, the projections from the side surfaces do not overlap and the projections from the other end or one end are staggered. You may arrange and attach so that. Next, after moving the portal frame to the first processing tank, loosen the wire rope hung on both ends of the horizontal suspension jig to which the long material to be processed is attached, and the horizontal beam of the horizontal suspension jig is placed on the processing tank. The long material to be treated is immersed in the treatment liquid in the treatment tank. A predetermined surface treatment is performed by dipping and holding in the treatment liquid for a predetermined time. If necessary, electrolytic treatment can be performed.

  When the predetermined surface treatment is completed, the horizontal suspension jig 1 is pulled up and immersed in a treatment tank for the next process. The above-described steps are repeated to perform the necessary surface treatment on the long material. After all surface treatments have been completed, the long material is washed thoroughly with water if necessary, and then a wire rope is fixed to both ends of the horizontal suspension jig, the rope is wound up, and the long material to be treated is treated with the horizontal suspension jig. Pull it up and hold it for a while to drain it. The treatment liquid adhering to the long material to be treated flows downward along the slanted long material and is dropped from the end of the long material. At this time, even if the treatment liquid flowing down through the upper long material is dropped, one end of the lower long material does not overlap immediately below the dripping, so that there is almost no occurrence of a puddle. About 10 to 15 minutes are required for the drainage time. The surface of the long material is almost dried during the draining, but it is completely dried in a heating furnace such as a drying furnace or a baking furnace.

In the surface treatment apparatus of the present invention, if the electric motor that drives the hoisting device for moving the horizontal suspension jig up and down is designed so that it can be driven independently for each horizontal suspension jig, a plurality of surface treatment steps Can be carried out simultaneously.
Furthermore, by arranging a plurality of portal mounts and sequentially translating them, it becomes possible to efficiently perform a plurality of surface treatment steps, so that the production efficiency can be dramatically improved.

If surface treatment is applied to the long material in this way, the surface treatment long material with a beautiful finish can be obtained by performing simple operations with simple equipment, and there are few defective finishes due to sagging and bubble marks. Can be easily obtained.

[Example]
The present invention will be specifically described below with reference to examples.

As the long material, eight aluminum alloy hollow extruded shapes having a cross-sectional size of 20 cm long × 4 cm wide and 6 m long are aligned with one end 2b of the long material 2 on the inclined jig column 4b as shown in FIG. Attachment, The other end 2a of the long material 2 was attached to a position higher than the one end 2b. The angle θ of the inclined jig column 4 b was changed to various values on the jig column 4 a side with respect to the vertical line of the horizontal beam 3, and was suspended horizontally. The jig column 4a facing the inclined jig column 4b was parallel to the inclined jig column 4b. Accordingly, the angle is the same as the angle of the inclined jig column.
As shown in FIG. 4B, the long members are arranged in parallel at intervals of 2 cm so as to form a straight line in the vertical direction in the projection direction from the side surface of the long material, and slantly horizontally suspended. Retained. The eight hollow extruded shapes were held by a holder so as to be perpendicular to the inclined jig column 4b as shown in FIG. The arrows in the figure indicate the direction in which the processing liquid drips and falls.

  As described above, the eight hollow extruded profiles were slanted horizontally, and the horizontal suspension jig was loaded into the processing apparatus shown in FIG. 1 and immersed in a processing tank by a dedicated winding support portion. Next, suspend the horizontal suspension jig from the treatment tank, let it stand for 5 minutes, drain the treatment liquid, and after 7 minutes, place it in the drying furnace and measure the traces of each shape except the topmost shape after drying. did.

  Generally, in each test, the lower elongated material extends longer in the left direction, and the portion corresponding to the length (L) becomes defective. The measurement results are shown in Table 1.

In this embodiment, as shown in FIG. 5A, the angle θ of the inclined jig column 4b is changed to various values on the jig column 4a side with respect to the vertical line of the horizontal beam 3 as in the first embodiment. I hung it sideways. The jig column 4a was parallel to the inclined jig column 4b. When suspending horizontally, the same long materials as in Example 1 are attached in parallel with each other at a distance of 2 cm so as not to overlap each other in the projection direction from the side of the long material. Retained. When viewed from the cross-sectional direction, as shown in FIG. 5B, the long materials are arranged in two vertical rows alternately in a staggered manner. The distance from the next row lowered by one step is 2 cm. The arrows in the figure indicate the direction in which the processing liquid drips and falls.
The eight extruded profiles were held by a holder so as to be perpendicular to the inclined jig column 4b as shown in FIG. Surface treatment was performed under the same conditions as in Example 1, and the traces of each shape except for the top shape were measured. The measurement results are shown in Table 2.

As can be seen from the results in Tables 1 and 2, according to the surface treatment method of the present invention, it is understood that no sagging occurs when the angle θ formed by the vertical line of the horizontal beam and the oblique jig column is 6 degrees or more. .
In addition, it can be seen that even if a complicated apparatus is not provided, the operation can be performed efficiently with one motor without any trouble in operation.

It is a side view explaining the structure of the principal part of the surface treatment apparatus of the elongate material of this invention. It is a figure which shows the horizontal suspension jig | tool concerning the 1st Embodiment of this invention. It is a figure which shows the horizontal suspension jig | tool concerning the 2nd Embodiment of this invention. It is a side view which shows an example of the method of attaching a elongate material to the horizontal hanging jig of this invention. It is sectional drawing which shows an example of the method of attaching a elongate material to the horizontal hanging jig of this invention. It is a side view which shows the example of the other method of attaching a elongate material to the horizontal suspension jig | tool of this invention. It is sectional drawing which shows the example of the other method of attaching a elongate material to the horizontal suspension jig | tool of this invention.

DESCRIPTION OF SYMBOLS 1 Horizontal hanging jig | tool 2 Long material 3 Horizontal beam 4a, 4b Jig pillar 5 Processing tank 8 Processing liquid 9 Holder 14 Conductive holder 20 Surface treatment apparatus 21 Rail 22 Gate type mount frame 23a, 23b Gate pillar 24 Horizontal beam 25a, 25b Wire 26a, 26b Winding support portion 27 Electric motor 28a, 28b Power supply rail

Claims (5)

The horizontal hanging by a plurality of identical length of elongated workpiece to a horizontal lifting jig for moving up and down relative to the processing tank, comprising a plurality of jigs pillars attached to a horizontal beam and a horizontal beam, the Among the plurality of jig columns, the jig column at a position corresponding to the end of the plurality of long members having the same length is 6 degrees on the other jig column side facing the vertical line of the horizontal beam. The tilted jig column and the jig column on the other end side of the long material are maintained at the same predetermined angle with respect to the vertical line of the horizontal beam. The plurality of jig columns are mounted in parallel, and one end of the plurality of long materials of the same length is aligned and held on the inclined jig columns, and the other end side of the long materials the other end of the jig pillars the long scale member is inclined to hold higher than one position holder for holding the hanging horizontal is attached to the plant Of the holder which is attached to the angled jig pillar angle, to become attached to hold at right angles a plurality of identical length of the long material to the axial direction of the inclined jig Column A long hanging jig for long materials. Inclined to the predetermined angle, the plurality of identical length retainer attached to the jig pillar holding align the end of the long material of, in claim 1, characterized in that a conductive holder The horizontal hanging jig of the described long material. A horizontal suspension jig according to claim 1 or 2 , wherein a rail is laid on the upper surface of the opposite side wall of the treatment tank, and a gate-type gantry that can travel on the rail is provided. A surface treatment apparatus for a long material, wherein both ends of the material are moved up and down by a vertical movement means provided on a portal frame, and the long material is immersed and pulled up in a treatment liquid in a treatment tank . A plurality of long members having the same length are arranged in a single vertical row and attached to the horizontal hanging jig according to claim 1 or 2 and held obliquely. Using the surface treatment apparatus for a long material according to claim 3 , the horizontal suspension jig that has been horizontally suspended is immersed in a treatment liquid in a treatment tank to perform surface treatment on the long material, A surface treatment method for a long material, wherein the horizontal suspension jig is pulled up from the treatment liquid and the treatment liquid adhering to the long material is drained. The projections from the other end or one end are staggered so that the projections from the side surfaces of a plurality of the elongated members having the same length do not overlap with the horizontal suspension jig of the elongated material according to claim 1 or 2. The long material surface treatment apparatus according to claim 3 , wherein the long material horizontal suspension jig that holds the long material is arranged in a plurality of rows so as to be attached and held obliquely. Use, after the surface treatment was performed on the long material by immersing it in the treatment liquid of the treatment tank, the horizontal hanging jig of the long material was pulled up from the treatment liquid, and the treatment adhered to the long material A surface treatment method for a long material, wherein the liquid is drained.