JP4890493B2 - 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 transferred 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, it is a horizontal hanging jig that is used when surface treatment is performed in a processing liquid by suspending a long material to be processed in a horizontal state, and does not require a complicated transfer device, and the processing liquid is held in the lower stage. To provide a horizontal hanging jig for obtaining a long material that does not drop on a long material that is left untreated, and a surface treatment apparatus and a surface treatment method using the horizontal hanging jig With the goal.

In the present invention, a horizontal beam and two jig columns attached to the horizontal beam are provided, and one end of the plurality of long materials is aligned and held in one of the two jig columns. has a holding jig for, and the other retained to hold the hanging laterally tilted holds the other end of said plurality of elongated members in a position higher than the one end of said jig pillar A tool is attached, and at least one of the two jig columns is provided with a tilting mechanism for inclining at an arbitrary angle toward the other jig column, and the other jig column is a connecting rod. In this case , a long-sided horizontal hanging jig is used, which has a structure that follows the movement of the one jig column and inclines in the same direction .

Using such a long material horizontal hanging jig, one end of a plurality of long materials is aligned and held on two jig pillars, and the other end is positioned higher than the one end. The above-mentioned problem can be solved by tilting and holding the beam so as to maintain a predetermined angle with respect to the vertical direction of the beam, and horizontally moving the horizontal hanging jig with respect to the treatment tank.
In addition, if such a long material horizontal hanging jig is used, one jig column is inclined at a predetermined angle, and the other jig column facing it is also inclined while supporting a plurality of long materials. Since the inclination angle of the plurality of long materials can be increased, the occurrence of sagging can be prevented and the liquid draining effect can be enhanced.

Horizontal hanging jig long material used in the present invention comprises a tilting mechanism for tilting the two jigs pillars respectively the same way toward the two jigs pillars, bi lateral tilting mechanism While holding the long material, the jig columns can be inclined in conjunction with each other at a predetermined interval.
By using a long material horizontal suspension jig with such a configuration, it is possible to process a large amount of long materials such as long materials and thick materials such as thick materials at a time. Become .

In the horizontal suspension jig of the present invention, it is preferable that the inclination angle of the one jig column is at least 6 degrees or more.
This is because, within such a range of tilt angles, the generation of sagging marks is prevented, the liquid draining effect is sufficiently high, and the load on the tilt mechanism can be reduced.

A surface treatment apparatus for a long material according to the present invention includes a gate-type gantry that lays a track on an upper surface of opposing side walls of a treatment tank, and that can travel on the track, and the book described above on a lateral beam of the gate-type gantry. The long material is constructed such that both ends of the laterally hanging jig of the long material of the invention are moved up and down by the vertical movement means provided in the portal frame, and the long material is immersed and pulled up in the processing liquid in the processing tank. Surface treatment apparatus.
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. The yield of the product is improved because no trace of the treatment liquid is left.

One of the surface treatment methods for a long material of the present invention uses the surface treatment device of the present invention described above, and a plurality of long materials are attached to the horizontal hanging jig of the long material of the surface treatment device. held diagonally horizontal hanging attached by placing in tandem, then was subjected to surface processing the long continuous material immersed in the processing liquid of the processing tank to the long material, wherein the lateral lifting jig The length for pulling up from the processing liquid, and then operating the tilting device for the horizontally suspended jig of the long material according to the present invention described above to incline the processing liquid adhering to the long material by tilting the jig column A surface treatment method for the scale material was adopted.
According to this method, it is possible to immerse and pull a large amount of long material in the treatment liquid by a simple operation, hold one end of a plurality of long materials on a jig column inclined at a predetermined angle, and 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 dripped from the lower end of the long material, and one end of the long material Will be shifted by the tilt angle of the fixture column attached, so that the range in which the treatment liquid will drip onto the long material attached at the lower position will be narrowed, and it will be possible to prevent the product from being defective due to pitting marks. Will be able to.

Another one of the surface treatment methods for a long material of the present invention uses the surface treatment device of the present invention described above, and a plurality of long materials are mounted on the horizontal suspension jig of the long material of the surface treatment device. wood and so does not overlap the projection from the side surface thereof, and the projection from the other end or one end is held in a suspended, laterally obliquely mounted with a plurality of rows arranged such that the staggered, then handles the long continuous material After the surface treatment is performed on the long material by immersing in the treatment liquid of the tank, the horizontal suspension jig of the long material is pulled up from the treatment liquid, and then the horizontal suspension of the long material of the present invention described above is performed. A surface treatment method for a long material characterized in that a jig tilting device is actuated to tilt a jig column to remove the treatment liquid adhering to the long material.
Also by this method, a large amount of long material can be dipped and pulled up in the processing solution with a simple operation, and one end of a plurality of long materials is aligned and held on a jig column inclined at a predetermined angle. The jig column on the other end side of the scale material is tilted while holding the other end of the long material at a position higher than the one end, so that the treatment liquid drops from the lower end of the long material, and one end of the long material is Since it will be shifted by the tilt angle of the attached jig column, the range in which the treatment liquid will drip on the long material attached at the lower position will be narrowed, and it will be possible to prevent defective finish of the product due to traces. become able to. Furthermore, a uniform surface treatment can be performed without disturbing the current density.

According to the present invention, by adopting a horizontally suspended jig for a long material having a simple structure, the treatment liquid can be surely drained, and in addition, the long material in which the treatment liquid is held at the lower stage can be obtained. No more falling down. 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.
In addition, since the width of the processing liquid tank can be narrowed, there is an advantage that the amount of the processing liquid to be used can be reduced by suppressing the capital investment.

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 10 are holders, 23a and 23b are gate pillars constituting the portal frame 22, and 28a and 28b are power supply rails.

  In order to perform the surface treatment of the long material 2 using the surface treatment apparatus 20 for the long material of the present invention, the long material 2 to be treated is immersed in the treatment liquid 8 in the treatment tank 5 for treatment. In the case where the jig columns 4a and 4b are perpendicular to the direction perpendicular to the horizontal beam 3 as shown in FIG. 1 and the treatment is completed and the treatment liquid is drained, the length is long as shown in FIG. The material 2 is suspended from the treatment liquid 8 in the treatment tank 5 together with the horizontal suspension jig 1, and one or both of the jig columns 4 a and 4 b (see FIG. 4) are inclined in an oblique direction with respect to the horizontal beam 3. Then, the processing liquid is dropped from the right end of the figure to drain the liquid.

Next, the long hanging jig of the long material of the present invention will be described.
FIG. 2 is a side view showing the main part structure of the horizontal hanging jig of the present invention. The figure shows a state in which the horizontal suspension jig is lifted from the processing liquid and drained.
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.
When the long material 2 is attached, the one jig column 4b having the holder 10 so as to have a lower positional relationship than the left end portion of the right end portion of the long material 2 is connected to the vertical line of the horizontal beam 3. It is attached so that it can be tilted at a predetermined angle. In the state of FIG. 2, the long material 2 is pushed by the holder 10 and rises along the holder 9, but is inclined so that the right side of the figure is lower than the left side of the figure.
In the example of FIG. 2, only one jig column (right jig column 4b in the example of FIG. 2) is tilted by power, and the other jig column (left jig column in the example of FIG. 2) 4a. Is oriented in a direction perpendicular to the horizontal beam 3.
In the case of a small-scale surface treatment apparatus such as a long thin material or a long material having a relatively short length, this method can sufficiently withstand practical use.
Alternatively, for a large-scale apparatus, the other jig column 4a can be inclined by the connecting rod 18 or power.
The tilt angle of the jig columns 4a and 4b is sufficient to be 6 degrees or more in order to efficiently drain the liquid after the treatment and prevent the occurrence of the pitting.

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 10. The holding positions of the holding tools 9 and 10 are such that one holding tool (left holding tool 9 in the example of FIG. 2) is higher than the other holding tool (right holding tool 10 in the example of FIG. 2). Yes, when the long material 2 is held, it is slightly inclined (upward to the left in FIG. 2). The inclination angle may be about 3 degrees or more from the horizontal position of the long material 2.
The left and right holders 9 and 10 are configured such that, for example, the holder 9 is the other of the long material 2 so that the long material 2 is not dropped because the long material 2 is obliquely displaced when the jig columns 4 a and 4 b are inclined. It is preferable that it is inserted at the end (left end in the figure) and one end (right end in the figure) is held so as to sandwich the long material 2 therebetween.
In addition, one holding tool (the right holding tool 10 in the example of FIG. 2) has a structure that also serves as a power supply terminal for supplying a current for electrolytic treatment.

Next, FIG. 3 shows a state in which the jig columns 4 a and 4 b of the horizontal hanging jig of the present invention are perpendicular to the horizontal beam 3. This state is when the long material 2 is immersed in the treatment tank 5.
Multistage holders 9 and 10 are attached between the jig columns 4a and 4b, respectively. The holding positions of the holders 9 and 10 are such that the holder 9 on the left side of the figure is attached to a position higher than the other holder 10 and is inclined slightly upward to the left when the long material 2 is held. is there. The inclination angle is about 3 to 5 degrees from the horizontal position.
In this state, one end 2a of each long material 2 is arranged in a substantially straight line in the vertical direction.
In this example, the tilting device 7 is attached to the jig column 4 b on one side, and the jig column 4 b is tilted in the direction of the long material 2. When the jig column 4b is tilted in the direction of the long material 2, the long material 2 is pushed and rises along the holding tool 9, approaches the direction of the jig column 4a, and is in the state shown in FIG.

  FIG. 4 shows a state in which the jig columns 4 a and 4 b of the horizontal hanging jig of the present invention are inclined with respect to the horizontal beam 3. This state is a case where the processing is finished and the long material 2 is pulled out of the processing tank 5 and drained. FIG. 4 shows an example in which the tilting devices 6 and 7 are arranged on the left and right jig columns 4a and 4b, respectively. In this case, it is necessary to adjust the movement of each jig column so that the movement of the left and right jig columns 4a and 4b always holds the long material 2.

When the jig columns 4a and 4b are inclined with respect to the horizontal beam 3, the end 2a of the long material 2 is gradually shifted in the direction of the jig column 4a in the vertical direction. Therefore, the treatment liquid is not dripped onto the long material held in the lower stage, and the occurrence of a puddle can be prevented.
This method is suitable for a large surface treatment apparatus.

FIG. 5 shows another example in which the jig columns 4 a and 4 b of the horizontal hanging jig of the present invention are inclined with respect to the horizontal beam 3.
In the example of FIG. 5, the driving device 7 is attached to one jig column 4 b side, and the upper ends of both jig columns 4 a and 4 b are connected with a connecting rod 18 using pins 19.
When the tilting device 7 is operated to tilt the jig column 4b toward the other jig column 4a, the jig column 4a can also be tilted and tilted.

Next, FIG. 6 shows an example of a tilting device used in the horizontal hanging jig of the present invention. 6A is a side view and FIG. 6B is a front view.
As shown in FIG. 6, the tilting devices 6 and 7 used in the present invention have a box-shaped frame 11 so as to be wound around the horizontal beam 3, and an electric motor or a hydraulic device is provided on the box-shaped frame 11. An extrusion device 14 is fixed.
Further, a rotary shaft 12 is rotatably inserted through the lower end central portion 11a of the box-shaped frame 11, and the rotary shaft 12 is fixedly attached to the jig column 4a.
Further, the tilting device 6 is connected via a connecting rod 17 to a pin 13 attached to the upper end of the jig column 4a. When the connecting rod 17 of the extrusion device 14 is extended, the jig column 4 a is tilted about the rotation shaft 12 in the direction of the arrow through the pin 13.
The horizontal beam 3 penetrating into the box-shaped frame 11 has an arcuate upper surface, and is fixed to the side wall of the box-shaped frame 11 by a set screw 16 so as to be slidable. On the other hand, the lower surface of the horizontal beam 3 is fixed to the bottom plate of the frame 11 of the long material 2 by forming a box structure with a set screw 15. The inclination of the jig columns 4a and 4b can be arbitrarily adjusted according to such a length.

Next, a method for setting a long material on the lateral suspension tool of the present invention will be described with reference to FIGS.
7 and 9 are views of a state in which a long material is set on a horizontal suspension holding device, as viewed from the side. FIGS. 8 and 10 are respectively a line AA ′ in FIG. 7 and a line BB in FIG. The cross section along 'is shown. 7 and 9 show the state in which the horizontal suspension holder 1 is pulled up and the holder columns 4a and 4b are tilted by the tilting devices 6 and 7, respectively.
When attaching the long materials 2, 2, 2,... To the fixtures 9, 9, 9,... And 10, 10, 10,. 2, 2,... May be arranged in a vertical row. The distance between the long materials 2, 2, 2,.

Alternatively, as shown in FIG. 10, a plurality of long materials 2, 2, 2,... May be arranged and attached in a staggered manner so that projections from the side surfaces do not overlap. In this case, the interval between adjacent long material rows should be approximately equal to or greater than the thickness of the long material (7 cm in the figure), and the interval between the staggered lower material may be about 2 cm.
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 a state in which the droplets of the processing liquid are falling, and the droplets 30 are in the direction of the long materials 2, 2, 2,. Even if it falls, as shown in FIGS. 7 and 9, since the end 2a does not overlap the lower long material on the long material 2, the processing liquid does not fall on the lower long material to be processed. A surface treatment defect due to the trace of the treatment liquid does not occur.

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

As the long material 2, five aluminum alloy hollow extruded shapes having a cross-sectional size of 20 cm long × 4 cm wide and 6 m long are attached to the inclined jig columns 4 a and 4 b at both ends of the long material 2 as shown in FIG. Alignment was performed with one end of the long material 2 positioned higher than the other end 2a. At this time, as shown in FIG. 8, the long material 2 was mounted in parallel and spaced apart by 2 cm so as to form a straight line in the vertical direction in the projection direction from the side surface, and was held horizontally.
Thus, the horizontal suspension jig 1 in which the five hollow extruded shapes are horizontally suspended is loaded into the processing apparatus 20 shown in FIG. 1 and immersed in the processing tank 5 by a dedicated winding support portion to perform surface treatment. gave.

Next, the horizontal suspension jig 1 is lifted from the treatment tank 5, and the angle θ of the inclined jig columns 4a and 4b is changed to various angles with respect to the vertical line of the horizontal beam 3 as shown in FIG. The processing liquid was allowed to stand still, and the treatment liquid was drained. After further placing in a drying oven for 7 minutes and drying, the length of the traces generated in each shape except for the topmost shape was measured. The measurement results are shown in Table 1.
In addition, the arrow in FIG. 7 has shown the direction where a process liquid dries and falls.

In this example, the projection directions from the side surfaces of the long material 2 were attached so as to be arranged parallel to each other with an interval of 2 cm, and held obliquely and horizontally. When viewed from the cross-sectional direction, as shown in FIG. 10, the long members 2 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 FIG. 10 indicate the direction in which the processing liquid drips or falls.

In this way, the horizontal suspending jig 1 in which five long materials 2 are horizontally suspended is loaded into the processing apparatus 20 shown in FIG. 1 in the same manner as in Example 1, and immersed in the processing tank 5 by a dedicated winding support portion. Then, surface treatment was performed.
After surface treatment and liquid draining / drying under the same conditions as in Example 1, the traces of the respective shapes except for the uppermost shape were measured. The measurement results are shown in Table 2.

As can be seen from the results of Tables 1 and 2, according to the surface treatment method of the present invention, if the angle θ between the vertical line of the horizontal beam and the oblique jig column is 6 degrees or more, no sagging occurs. I understand.
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 surface treatment apparatus of the elongate material of this invention. It is a side view which shows the principal part structure of the horizontal suspension jig | tool of this invention. It is a figure which shows the state which made the jig | tool column of the horizontal suspension jig | tool of this invention perpendicular | vertical with respect to the horizontal beam. It is a figure which shows the state which inclined the jig | tool column of the horizontal suspension jig | tool of this invention with respect to a horizontal beam, Comprising: The example which attached the tilting device to both jig | tool columns is shown. It is a figure which shows the other example of the state which inclined the jig | tool column of the horizontal suspension jig | tool of this invention with respect to a horizontal beam, Comprising: The example which attached the inclination apparatus to one jig | tool column is shown. It is a figure explaining the structure of the tilting mechanism of the horizontal hanging jig of this invention, (a) is a side view, (b) is a front view. It is the figure which looked at the state which set the elongate material to the horizontal hanging holder from the side. It is a figure which shows the cross section along line A-A 'of FIG. It is the figure which looked at the state which set the elongate material to the horizontal hanging holder from the side. 10 shows a cross section along the line B-B ′ of FIG. 9.

Explanation of symbols

1 Lateral jig,
2 long material,
3 Horizontal beam,
4a, 4b jig post,
5 treatment tank,
6, 7 Tilt device 8 Treatment liquid,
9, 10 holder,
11 Frame 12 Rotating shaft 13 Pin 14 Extruding device 15 Set screw 16 Holding screw 17 Connecting rod 18 Connecting rod 20 Surface treatment device,
21a, 21b rails,
22 Gate-type frame,
23a, 23b Gatepost,
24 Cross beam,
25a, 25b wire,
26a, 26b Winding support part,
27 Electric motor,
28a, 28b Power supply rails,
30 droplets

Claims (6)

A horizontal suspension jig for vertically moving a plurality of horizontally suspended long materials, comprising a horizontal beam and two jig columns attached to the horizontal beam. One jig column has a holding jig for aligning and holding one ends of the plurality of long materials, and the other jig column has the plurality of long materials in addition to the plurality of long materials. the end is inclined and held in a position higher than the one end of the result coercive jig is attached to hold the hanging laterally, the other at least one jig pillars of the two jig column A tilting mechanism for tilting at an arbitrary angle is provided on the side of the jig column, and the other jig column has a structure that tilts in the same direction following the movement of the one jig column via a connecting rod. A long-hanging jig for long materials. It comprises a tilting mechanism for tilting the two jigs pillars respectively the same way toward the two jigs pillars, with a predetermined distance while holding the bi lateral tilting mechanism long material of one another 2. The long material horizontal hanging jig according to claim 1, wherein the jig pillar is inclined in conjunction with the long jig. 3. The long material horizontal hanging jig according to claim 1, wherein an inclination angle of the one jig column is at least 6 degrees or more. The long material according to any one of claims 1 to 3 , wherein a track is laid on an upper surface of opposite side walls of the processing tank, and a gate-type gantry that can travel on the track is provided. It is constructed so that both ends of the horizontal suspension jig are moved up and down by the vertical movement means provided in the portal frame, so that the long material is immersed and pulled up in the processing liquid in the processing tank. Scale material surface treatment equipment. The surface treatment apparatus according to claim 4 is used, and a plurality of long materials are arranged and attached in a vertical row to the horizontal suspension jig of the long material of the surface treatment device , and then held obliquely. after the surface treatment of the long continuous material immersed in the processing liquid of the processing tank to the long material, hanging pulling the jig from the treatment liquid transverse, then horizontal lifting jig of the long member A surface treatment method for a long material, wherein a tilting mechanism is actuated to incline a jig column and drain the treatment liquid adhering to the long material. The surface treatment apparatus according to claim 4 is used, and a plurality of long materials are projected on the laterally hanging jig of the long material of the surface treatment apparatus so that projections from the side surfaces do not overlap, and the other end or one end projection from holds the suspended laterally obliquely mounted with a plurality of rows arranged such that the staggered and then subjected to a surface treatment to a long material by immersing the long long material in the processing solution in processing tank Then, the horizontal material hanging jig was pulled up from the treatment liquid, and then the tilting mechanism of the long material horizontal hanging jig was operated to tilt the jig column and adhere to the long material. A surface treatment method for a long material, characterized by draining a treatment liquid.

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