JP3198407B2 - Anodizing jig - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an alumite treatment jig used for performing alumite treatment on a rod-shaped work made of aluminum or aluminum alloy and supporting the work when performing related work. The alumite treatment in the present invention means an anodic oxide film formation treatment.

[0002]

2. Description of the Related Art For example, products such as crochets made of aluminum or aluminum alloy used for knitting have improved fastness, such as corrosion resistance, and have been colored in a desired color to improve the appearance of the products. From a perspective,
In many cases, alumite treatment is performed. In this alumite treatment, after pre-treatment such as polishing treatment of the work surface, the work is immersed in an aqueous electrolyte solution, and then the work solution is used as an anode to electrolyze the electrolyte aqueous solution, so that the corrosion-resistant oxidation of the work surface is achieved. This is a process for generating a film. After the alumite treatment, a washing treatment, a coloring treatment, a sealing treatment and the like are performed.

On the other hand, conventionally, when performing the above-described alumite processing and various processing related thereto, for example, FIG.
Jig B as shown in FIG. That is, in this conventional jig B, three aluminum wires 9a to 9c are arranged in parallel at an appropriate interval, and the ends of the aluminum wires 9a to 9c are twisted to form a hanging hook. 90 is formed.

According to the conventional jig B, as shown in FIGS. 6 and 7, three aluminum wires 9a to 9
With c, the bar-shaped crochet 5a can be sandwiched and supported at three places in the longitudinal direction. In the conventional jig B, the material cost and the processing cost of the aluminum wires 9a to 9c are relatively low, and the unit price of the entire jig can be relatively low. In addition, aluminum wire rod
The energization is also good, and it is convenient to energize the crochet 5a.

[0005]

However, the conventional jig B has the following disadvantages.

First, in order to support the crochet 5a on the conventional jig B, of the three aluminum wires 9a to 9c, the center aluminum wire 9b is grasped by hand and then lifted upward. The center aluminum wire 9b and the two aluminum wires 9a and 9c on both sides thereof.
Must be inserted into the gap between the height steps from the side thereof. Further, since the position of the crochet 5a cannot be stabilized only by inserting the crochet 5a between the aluminum wires 9a to 9c, thereafter, as shown in FIG. It is also necessary to prevent the crochet 5a from being displaced or falling off by bending the portion in contact with the crochet 5a. Therefore, conventionally, a series of these operations has been extremely complicated, and the workability has been deteriorated. Furthermore, the means for positioning the crochet 5a by bending the aluminum wires 9a to 9c lacks the reliability of the positioning and holding of the crochet 5a.
If you touch another crochet supported by ~ 9c,
In some cases, the crochet was easily displaced and dropped off from the jig B. As a result, conventionally, the workability when setting the crochet 5a on the jig B has been even worse.

Second, in the conventional jig B, the crochet 5
The setting position of "a" is not particularly determined, and when setting the plurality of crochets 5a, the operator merely sequentially sets the aluminum wires 9a to 9c along the longitudinal direction at an appropriate pitch. For this reason,
Conventionally, a crochet 5 set in one jig B
The total number of “a” is fluid, which sometimes causes inconvenience in managing the number of crochets.

Third, since the conventional jig B is made of aluminum as a whole, the jig B itself is inferior in corrosion resistance. The jig B deteriorated in a relatively short period of time due to use. More specifically, for example, when a wire having a diameter of 2 mm is used as the three aluminum wires 9a to 9c, if the jig B is used once in a series of processing operations, the diameter becomes 0.03 mm due to erosion.
It has been confirmed that the diameter decreases by about 15/1000 in the dimensional ratio. Also, the aluminum wires 9a to 9c have a property of being hardened and weakened by contact with various treatment liquids. For example, the aluminum wires 9a to 9c are used to set the crochet 5a on the jig B.
When ~ 9c was pressed down by hand, there was a case where these wires were broken. Therefore, conventionally, if one jig B is used several times, the aluminum wires 9a to 9c are no longer significantly deteriorated, and the service life thereof has expired. As a result, conventionally, although the manufacturing unit price of the jig B itself is relatively low, if the alumite treatment is repeatedly performed many times, it is necessary to prepare a large number of jigs B. However, the cost for purchasing a large number of jigs was high, which was rather uneconomical.

Fourth, in the above-mentioned conventional jig B, the crochet 5
When the alumite treatment of a is performed, the aluminum wire 9
An insulating coating of aluminum oxide is also formed on the surfaces a to 9c. Therefore, when the jig B once used for the alumite treatment is to be used again, as a means for appropriately applying the electric current to the jig B, removal of the insulating coating formed on the surfaces of the aluminum wires 9a to 9c is performed. It is necessary to perform the processing in advance, and conventionally, this operation has been very troublesome.

Fifthly, in the conventional jig B, the rod-shaped crochet 5a is connected to three aluminum wires 9a to 9c in the longitudinal direction.
Therefore, there are inevitably three contact marks with the aluminum wires 9a to 9c in the longitudinal direction of the surface of the crochet needle 5a after the alumite treatment. Each of these contact marks becomes a linear contact mark. However, in order to improve the appearance of the crochet 5a, it is desirable that the number of contact marks as described above be as small as possible.

The present invention has been conceived in view of such circumstances, and enables the work of setting a bar-shaped work to a jig to be performed easily and appropriately, and furthermore, the jig can be operated in a short time. It is an object of the present invention to solve the problem of deterioration due to use and to improve the economic efficiency.

[0012]

DISCLOSURE OF THE INVENTION In order to solve the above problems, the present invention employs the following technical means.

The anodized jig provided by the present invention is an anodized jig for supporting a plurality of rod-shaped workpieces to be anodized,
A plurality of holders formed by bending a wire made of titanium or a titanium alloy, and a frame that supports the plurality of holders, each of the holders is between a pair of support pieces facing each other. At least one of the pair of support pieces has a plurality of work support portions that are elastically deformable so that a part of the work can be sandwiched, and the plurality of work support portions correspond to each other. The work pieces are arranged in a plurality of rows so that the works can be supported and supported by the two work support parts, and the support pieces of the two work support parts corresponding to each other are connected via a connection part. .

In the present invention, since a plurality of rod-shaped workpieces can be supported by a plurality of holders made of titanium or a titanium alloy having good conductivity, electric current is supplied to each work via the plurality of holders. It is possible to perform the alumite processing for a plurality of workpieces collectively and efficiently. In addition to this, the present invention has the following specific effects.

First, according to the present invention, in order to support a rod-shaped work on the work supporting portion of each holder, at least one of the pair of supporting pieces of the work supporting portion is elastically deformed so that the pair of supporting pieces can be supported. After a gap that allows the workpiece to enter the gap is created, the workpiece may be allowed to enter the gap. By this operation, the work can be held between the pair of support pieces by using the elastic restoring force. Therefore, compared with the conventional work in which a height difference is generated in the three aluminum wires and then a work is inserted into the gap between the height differences and a part of the aluminum wire is bent, the distance between the pair of support pieces is smaller. The work of inserting the work into the work becomes much easier, and the work efficiency of the work of setting the work can be significantly improved.

Second, according to the present invention, a work can be supported by being bridged over a plurality of work supports, instead of being simply supported by a single work support. Therefore, in the present invention, it is possible to stabilize the position and the direction of the work, and unlike the related art, eliminate the possibility that the position and the direction of the work supported by the jig are inadvertently shifted. It is possible to perform the operation more easily and smoothly. In addition, it is possible to easily arrange a large number of works in a jig with good space efficiency. Further, since the number of jig holders and the number of works set in the holders can be accurately associated with each other, it is easy to manage the number of works and the like.

Third, in the present invention, since the holder for supporting the work is made of titanium or a titanium alloy, its corrosion resistance is higher than that of a conventional jig using an aluminum wire, and alumite treatment and It is possible to prevent the holder from deteriorating in a short period of time when used for various processes related to. Therefore, according to the present invention, it is possible to extend the service life of the jig, thereby obtaining an advantage that the jig purchase cost can be reduced as compared with the related art. That is, if the jig is made of titanium or a titanium alloy, the unit cost of the jig itself is higher than that of aluminum, but the number of jigs used can be reduced by extending the service life of the jig, As a whole, it is possible to keep the jig purchase cost lower than before.

Fourth, in the present invention, the holder for supporting the work is made of titanium or a titanium alloy, so that an aluminum oxide insulating film is prevented from being formed on the surface of the holder during the alumite treatment. Can be. For this reason, unlike the conventional case, when the jig used for the alumite treatment is reused, it is possible to eliminate the necessity of performing the removal treatment of the aluminum oxide insulating film in advance, and the handling and management of the jig are facilitated. Become.

Fifth, in the present invention, when a bar-shaped work is supported and supported by a plurality of work supporting portions, it is not necessary to bridge the work to three or more work supporting portions. As long as the work is not a very long work, the work can be sufficiently adequately supported by bridging the work between the two work supporting portions. That is, in the present invention, it is possible to support the work at two points. Therefore, in the present invention, unlike the conventional one in which contact marks with the aluminum wire are always generated at three places in the longitudinal direction of the work, the number of contact marks with the holder appearing on the work surface is reduced to two places. It becomes possible. As a result, in the present invention, the surface of the work can be finished in a better appearance than before. Sixth,
According to the present invention, since the two work supporting portions corresponding to each other of the holder are connected to each other via the connecting portion, it is possible to prevent a large deviation in the dimension between these two work supporting portions. Further, the mechanical strength of the entire holder can be increased. Further, since the connecting portion connects the supporting pieces of the two work supporting portions, the operator pushes the connecting portion to simultaneously move the supporting pieces of the two work supporting portions. It is possible to do. Therefore, the work for forming the gap for inserting the work between the support pieces of the two work support portions and supporting the work between them is further facilitated.

In a preferred embodiment of the present invention, the frame may be made of titanium or a titanium alloy, and the plurality of holders may be detachably attached to the frame.

According to such a configuration, the corrosion resistance of the frame can also be improved, which is more preferable in extending the service life of the jig. Further, if the plurality of holders can be removed from the frame, when the holder is deteriorated by using the jig many times, it is possible to remove the holder from the frame and replace only the holder with a new holder. . Therefore, the frame can be used repeatedly over a long period of time, which is more economical.

In another preferred embodiment of the present invention,
The tip of each of the pair of support pieces of the holder is bent to open ahead, and at least one of the pair of support pieces is associated with a part of the work that has entered between these support pieces. It is possible to adopt a configuration in which a substantially V-shaped bent portion is formed to form a recessed portion that can be inserted.

According to such a configuration, when the work is to be entered between the pair of support pieces of the holder, the work is smoothly entered between the support pieces from the leading end of the pair of support pieces. The work setting operation can be performed more efficiently. Further, after the work has entered between the support pieces, a part of the work is engaged with the concave portion provided on at least one of the support pieces, whereby the positioning of the work can be accurately achieved, and The displacement can be more reliably prevented.

In another preferred embodiment of the present invention,
At least one of the pair of support pieces of the holder may be provided with a spring force generating portion in which a part of a wire constituting the holder is wound in a loop.

According to such a configuration, the work is reliably sandwiched between the pair of support pieces by utilizing the spring force generated by the spring force generating portion when the work is sandwiched between the pair of support pieces. You can do it. That is, titanium or a titanium alloy is not easily elastically deformed,
Although there is a property that it is difficult to exert a spring force for securely pinching the work, such a problem can be appropriately solved according to the above configuration.

[0026]

[0027]

In another preferred embodiment of the present invention,
The plurality of holders may be provided on each of the front and back surfaces of the frame.

According to such a configuration, a large number of workpieces can be efficiently converted into one jig by using not only the plurality of holders provided on the front surface portion of the frame but also the plurality of holders provided on the back surface portion. It can be supported.

[0030]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be specifically described below with reference to the drawings.

FIG. 1 shows an example of an anodizing jig according to the present invention. FIG. 1 (a) is a partially omitted plan view, and FIG. 1 (b) is a partially omitted side view. is there. FIG. 2 is a perspective view of a main part of the anodized jig shown in FIG. FIG. 3 is an exploded cross-sectional perspective view of a main part of the anodized jig shown in FIG.

1 (a) and 1 (b), the anodizing jig A includes a frame 1, a plurality of holders 2 attached to the frame 1, hooks 3 and 3a, and members to be described later. It is configured. All of the members constituting the anodizing jig A are made of titanium or a titanium alloy. A part of the anodizing jig A is appropriately welded, and titanium or a titanium alloy is used as a welding material.

The frame 1 is formed in the shape of an elongated hollow rectangular frame extending in a certain direction in plan view, and the side plate portions 10a extending in the longitudinal direction of the frame 1 and facing each other at a certain interval. , 10b and a connecting plate 1 for connecting longitudinal end portions of these side plate portions 10a, 10b.
1a and 11b. The connection plates 11a, 1
1b and the side plate portions 10a and 10b are joined by, for example, welding. The hooks 3 and 3a are used when the frame 1 is set in a vertically long position and supported by being suspended.
Are fixedly attached by welding or the like to the connecting plates 11a and 11b.

Each of the holders 2 is formed by bending a wire made of titanium or a titanium alloy and having a certain dimension. As shown in FIG. 3, the holder 2 includes two work supporting portions 20, 20 located at appropriate intervals, and a connecting portion 29 connecting the two work supporting portions 20, 20. It is formed integrally. The shapes of the two work supports 20, 20 are symmetrical to each other, and these work supports 20, 2,
0 is a pair of support pieces 21 and 2 facing each other.
Two.

Each of the pair of support pieces 21 and 22 has a form extending upward from a substantially inverted U-shaped base end portion 23. One of the support pieces 21 is substantially linear in its entirety, and its tip 21a is bent in a direction away from the other support piece 22. On the other hand, the other support piece 22
A spring force generating portion 24 is provided at a middle portion in the longitudinal direction of the holder 2 in which a part of a wire constituting the holder 2 is wound in a loop. The other support piece 22 is connected to the spring force generating section 24.
, It can be elastically deformed while exhibiting a relatively strong resilient force in a direction facing one of the support pieces 21. Thus, an appropriate gap can be generated. Although the support piece 21 is not provided with a portion such as the spring force generating portion 24, the support piece 21 is a wire having a fixed end at a lower end and a free end at an upper end. Therefore, some elastic deformation is possible.

A bent portion 25 is formed in the vicinity of the distal end portion 22a of the other support piece 22 by bending a portion of the wire into a substantially rectangular shape in side view. ,
A concave portion 26 for engaging a part of a work described later is provided. Tip 22a of the other support piece 22
Are bent in a direction away from the one support piece 21. Therefore, the tip portions 21a and 22a of the pair of support pieces 21 and 22 are open ahead. The connecting portion 29 is connected to the tip portion 22a of the other support piece 22 and has two work support portions 20 and 2.
0, the tip portions 22a, 22 of the respective support pieces 22, 22
a are connected to each other.

The holder 2 is arranged such that the base ends 23, 23 of the two work supporting portions 20, 20 are in contact with the outer surfaces of the side plates 10a, 10b of the frame 1, respectively. It is detachably attached to the side plates 10a and 10b using the body 4a, the washer 4b, and the nut 4c. The side plate portions 10a, 10b are provided with a plurality of holes 12 for inserting the screw body 4a at a constant pitch interval.
A plurality of holders 2 are attached to 0b at a constant pitch along the longitudinal direction. However, as shown in FIGS. 1 and 2, in the jig A for alumite treatment, a plurality of holders 2 are not provided only on one surface of the frame 1, but a plurality of holders 2 are provided from both front and back surfaces of the frame 1. A plurality of holders 2 are provided on both front and back sides of the frame 1 such that the holder 2 stands up and down. Each of the work supporting portions 20, 20 of the plurality of holders 2 is provided with a side plate portion 10a, 10
b are arranged in two rows.

Next, an example of use of the jig A for alumite treatment and its operation will be described.

When using the jig A for alumite treatment, the plurality of holders 2 support a workpiece to be subjected to the alumite treatment. As a specific example of the work, for example, a crochet 5 for knitting made of aluminum or aluminum alloy is applied. In order to support the crochet 5 on each holder 2, as shown in FIG. 4, first, the tip 22 a of the support piece 22 of the holder 2 is shifted in the direction of the arrow N <b> 1, and the tip of the pair of support pieces 21 and 22 is moved. After a gap is formed between the crochet needle 5 and the support piece 21,
What is necessary is just to enter between 22. Tip 2 of the support piece 22
Since the connecting portion 29 is connected to 2a, the worker can easily create a gap between the pair of support pieces 21 and 22 by moving the connecting portion 29 in the direction of the arrow N1. . Moreover, two work supporting parts 2
It is possible to simultaneously create a gap between the support pieces 21 and 22 of 0 and 20 respectively. Therefore, the operation of setting the crochet 5 on the holder 2 is performed, for example, by operating the connecting portion 29 with one hand and the two work supporting portions 20, 20.
It is only necessary to insert the crochet 5 into the gap with the other hand while creating a gap between the respective support pieces 21 and 22 of the device 20, and the operation can be easily performed.

After the crochet 5 has been inserted between the support pieces 21 and 22, a part of the crochet 5 is disposed at a position facing the bent portion 25, and then the operator hands his hand from the connecting portion 29. You just have to release it. Then, the support piece 22 is returned in the direction of the simultaneous arrow N2 by the elastic restoring force, and the crochet 5 is sandwiched between the support pieces 21 and 22 so that a part thereof is engaged in the concave portion 26. Become. Since the support piece 22 is provided with the spring force generating portion 24, it is possible to reliably exert the elastic force for pinching the crochet 5 on the support piece 22.

According to the above series of operations, as shown in FIG. 5, the crochet 5 is clamped at two positions near both ends by the support pieces 21 and 22, and the crochet 5 is connected to the two work support portions 20. , 20 can be maintained. Therefore, the crochet 5 can be held in a positioning state with respect to the one holder 2, and even if the operator's hand touches the crochet 5 slightly, the position and the orientation of the crochet 5 are thereby reduced. But there is no easy distortion. Since a large number of the holders 2 are provided on both the front and back surfaces of the frame 1, by using the large number of the holders 2, a large number of the crochets 5 are aligned on the jig A for alumite treatment at a predetermined pitch interval, and It can be installed efficiently. When attaching the crochet 5 to each of the plurality of holders 2, the crochet 5 is first attached to each of the plurality of holders 2 located on the surface side of the frame 1, and then the anodized jig A is formed.
Is turned upside down, and then the crochet 5 is attached to each of the plurality of holders 2 located on the back side of the frame 1.

The alumite treatment of the crochet 5 is generally performed after performing a polishing treatment as a pretreatment.
As the polishing process, for example, an electrolytic polishing process for electrochemically polishing the surface of the crochet 5 in an electrolytic solution is applied. The alumite treatment is a process of electrochemically forming a coating of aluminum oxide on the surface of the crochet 5 by conducting electricity using the crochet 5 as an anode while the crochet 5 is immersed in an aqueous electrolyte solution. . After the completion of the alumite treatment, a washing treatment, a coloring treatment, and a sealing treatment are performed. The cleaning process is performed, for example, by immersing the crochet 5 in a cleaning solution. The coloring treatment is a treatment in which a dye is adsorbed on the oxide film by utilizing the porosity of the oxide film. The sealing treatment is a treatment for closing micropores formed in a coating cell of an oxide film, and for example, a hydration reaction is caused using boiling water or pressurized steam.

Each part of the jig A for alumite treatment is made of titanium or a titanium alloy having excellent corrosion resistance. Therefore, the jig A for alumite treatment is added to the above-described series of operations.
Therefore, even when the aluminum alloy is used, an insulating coating of aluminum oxide is not formed on the surface of each part of the jig A for alumite treatment, and the parts of the jig A are not deteriorated at an early stage. Absent. Accordingly, the jig A for alumite processing can be appropriately and easily repeatedly used for a number of alumite processing operations and processing operations related thereto. If the anodizing jig A is repeatedly used many times, the holder 2 made of a thin wire will be deteriorated. Therefore, in this case, the holder 2 is connected to the frame 1
, And replace it with a new holder. Since the frame 1 is a thick member, almost no deterioration is seen,
It can be used repeatedly over a longer period than the holder 2. Further, since the screw body 4a, the washer 4b, the nut 4c, and the like are also made of titanium or a titanium alloy, it is possible to repeatedly use these parts many times.

When the crochet 5 is supported by the anodizing jig A, the crochet 5 is only supported by two work supporting portions 20, 20 in the longitudinal direction of the holder 2; It has a point support structure.
Therefore, after the alumite treatment of the crochet 5 and the various processes related thereto are completed, only two contact marks with the holder 2 are present on the surface of the crochet 5, and the contact mark is formed. It is possible to finish the product with good appearance which is hardly noticeable. In particular, the contact mark is formed on the support piece 2 of the holder 2 formed of a wire having a circular cross section.
The crochet 5 has a part of the peripheral surface of the circular portion, which is located at one place of the support piece 21 and the support piece 2.
Since two points of the two bent portions 25 are in point contact with each other, these point-like contact marks can be made extremely inconspicuous.

The specific structure of each part of the jig for alumite treatment according to the present invention is not limited to the above embodiment, and various design changes can be made.

For example, in the above embodiment, the two work supporting portions 20, 20 of the holder 2 are integrally connected via the connecting portion 29. However, the present invention is not limited to this. The two work supporting portions 20, 20 may be completely independent from each other without having the portion 29. That is, one holder may have only one work supporting part 20.

In the above embodiment, the spring force generating portion is provided only on one of the pair of support pieces of the holder. However, the present invention is not limited to this. It is good also as composition provided with the spring force generating part. The spring force generating section may have a configuration in which the wire is formed into a plurality of double or triple windings. However, in the present invention, it is not always necessary to provide the spring force generator. In short, at least one of the pair of support pieces only needs to be elastically deformable so that a part of the work can be inserted between the pair of support pieces and sandwiched therebetween.

Further, in the present invention, the frame does not necessarily need to be made of titanium or a titanium alloy, but may be made of any other material. The frame is
This is because each part can be formed thick and can have durability. However, in practice, it is preferable that the frame be made of titanium or a titanium alloy. In the present invention, the means for attaching the holder to the frame is not limited to the means using a screw body or a bolt, and other means may be used. If the holder can be removed from the frame, it is convenient because the parts of the holder can be replaced. However, if such a need is not required, the holder may be welded to the frame, for example.

In addition, the present invention can be applied to various articles as long as they are rod-shaped workpieces, regardless of the specific type of the workpiece. For example, it goes without saying that a bar needle for knitting made of aluminum or an aluminum alloy is also applicable.

[Brief description of the drawings]

FIG. 1 shows an example of a jig for alumite treatment according to the present invention, where (a) is a partially omitted plan view and (b)
Is a side view partially omitted.

FIG. 2 is a perspective view of a main part of the anodized jig shown in FIG.

FIG. 3 is an exploded cross-sectional perspective view of a main part of the anodized jig shown in FIG.

FIG. 4 is a main part side view showing an example of a use state of the jig for alumite treatment.

FIG. 5 is a perspective view of a main part showing an example of a use state of the jig for alumite treatment.

FIG. 6 is a perspective view of an essential part showing an example of a conventional jig for alumite treatment.

FIG. 7 is a sectional view taken along line VII-VII of FIG. 6;

[Explanation of symbols]

 Reference Signs List 1 Frame 2 Holder 4a Screw 4c Nut 5 Crochet (Work) 20 Work support 21 Support piece 21a Tip 22 Support piece 22a Tip 24 Spring force generation part 25 Bend part 26 Concave part 29 Connection part A Jig for alumite processing

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-52-38432 (JP, A) JP-A-2-54798 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) C25D 17/08

Claims (5)

(57) [Claims] An alumite processing jig for supporting a plurality of rod-shaped workpieces to be anodized, comprising: a plurality of holders formed by bending a titanium or titanium alloy wire; And a frame supporting the holder, wherein each of the holders comprises a pair of support pieces opposed to each other.
So that a part of the work can be sandwiched between
At least one of the pair of support pieces is elastically deformable.
A plurality of work supporting portions, and the plurality of work supporting portions have two workpieces corresponding to each other.
To support the work by supporting it over the
Two workpiece supports arranged in a row and corresponding to each other
Wherein the supporting pieces are connected via a connecting portion . 2. The anodizing jig according to claim 1, wherein the frame is made of titanium or a titanium alloy, and the plurality of holders are detachably attached to the frame. 3. A front end of each of the pair of support pieces of the holder is bent so as to open first, and at least one of the pair of support pieces has a work inserted between the support pieces. The jig for alumite treatment according to claim 1 or 2, further comprising a bent portion in a substantially rectangular shape in a side view that forms a concave portion into which a part of the jig can be engaged. 4. A spring force generating portion formed by winding at least one of a pair of support pieces of the holder, a part of a wire constituting the holder is wound in a loop shape. An anodized jig according to the present invention. 5. The anodizing jig according to claim 1, wherein the plurality of holders are provided on both front and back surfaces of the frame.