JPH0342042Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a plating jig that primarily latches a plate-shaped product to be plated.

[Prior art]

As shown in FIG. 8, this type of conventional plating jig has a large number of energizing racks 2 attached to each vertical bar 1 arranged in a row on a jig frame F. The support arms 3 are formed by bending a wire into a U-shape or an L-shape, the tips 3a, 3a of each support arm 3, 3 are curved, and the central part is welded to the vertical beam 2 so as to be electrically conductive. .

The space between the adjacent supporting arms 3, 3 is horizontal, and the tip portions 3a, 3a are curved to form a sharp curve. Therefore, the product to be plated 5 can be placed on the supporting arms 3, 3, or placed on the tip portion 3a. , 3a.

[Problem that the invention attempts to solve]

According to the conventional plating jig as described above, when racking, the work to be plated is inserted between the upper and lower racks 2, and when unracking, the work is pulled out. Since the work to be plated requires horizontal movement, manual work becomes extremely inefficient, and even when mechanical work is used, the equipment is inevitably expensive due to the complicated mechanism that requires both horizontal and vertical movement. It was hot.

In addition, since the product to be plated is energized at the point of contact with both support arms 3, 3, the amount of electricity is insufficient in the center between both ends, so an auxiliary electrode is inserted in the center between both support arms 2, 2. It was necessary to make the distribution of plating thickness uniform.

Moreover, when the plating liquid is removed from the plating liquid, the liquid dripping from the upper plated item drips onto the lower plated item, causing the problem that the dripping liquid causes stains on the plated item.

In view of the actual state of plating technology as described above, this idea makes it possible to efficiently perform the latching and delucking work, to make the plating thickness uniform even without the use of auxiliary electrodes, and to prevent the droplets of the plating liquid from falling below. The purpose of this invention is to provide a plating jig that does not hit the product to be plated.

[Means for solving the problem] The structure of this invention to achieve the above object is to protrude a large number of conductive wires from the left and right vertical bars of the jig frame in pairs facing each other, and A pair of conductive wires are attached at an angle to one side, and a current-carrying part is provided upwardly protruding at the tip of each conductive wire, and a bucket with a drainage structure that can drain the plating solution is placed on the front side of the tip of each conductive wire. At the same time, there is enough space between each pair of left and right conductive wires and buckets to insert a hand into each bucket. The gist of the plating jig is that the surface is open and the current-carrying part penetrates and protrudes from the bottom wall.

[Effect]

According to the above configuration, since the buckets are sloped on the front side, the items to be plated can be hung on the left and right buckets and then loosened by simply dropping the items to be plated.
In addition, by inserting your hand into the space between the left and right conductive members and the bucket and scooping them up from the bottom, the items to be plated will naturally overlap from the inclined angle, allowing you to remove the items in one vertical line at once. Since the plated item is positioned, the lower edge will surely contact the current-carrying part under its own weight.Furthermore, due to the slope of the conductive wire, basket, and item to be plated, the plating liquid drains well and does not hang on the item to be plated below. It's something that doesn't exist.

〔Example〕

1 to 6 show one embodiment, and the plating jig is composed of a jig frame A and a large number of buckets B, B, . . . .

The jig frame A has a current-carrying hook 2 protruding from its upper end, and the lower half of the current-carrying hook 2 is immersed in a chemical-resistant synthetic resin liquid, so that the surface is coated with an insulating layer 4. covered with.

The structure of the jig frame A is a rectangular cubic frame with three vertical bars 3, 3, 3 on both the front and back surfaces so that the workpiece W to be plated can be racked on both the front and rear surfaces. Items to be plated W can be arranged in two rows on the left and right between the matching left and right vertical bars 3, 3, that is, on both the front and rear surfaces.

Regarding the racking structure of the product to be plated W, conductive wires 5a and 5b are protruded from adjacent left and right vertical bars 3 and 3 to face each other, and a space 9 is provided between them to the extent that a hand can be inserted. However, by making the conductive wire 5a on the center side of the frame protrude from a slightly higher position, the pair of inner and outer conductive wires 5a, 5b are tilted low toward the outside in a straight line.

Each pair of inner and outer conductive wires 5a, 5b is constructed by bending a single wire 5. That is,
By bending the center part of the wire rod 5 into a U-shape, the front and rear wire rods 5, 5 are combined at the front and rear center of the jig frame A, and the combined part is used as the hanging part 7 of the plating liquid than the conductive wire rods 5a, 5b. The inclined portions located below and extending from the conductive wires 5a, 5b to the hanging portion 7 serve as plating liquid conductive members 6a, 6b.

At the tip of each conductive wire 5a, 5b, a current-carrying portion 8 is provided to protrude upward from the insulating layer 4, and a chevron-shaped contact portion 8a is formed at the tip. Further, each current-carrying portion 8 is inclined toward the front side (FIG. 4).

Bucket B has a bottom wall 10 and both front and rear walls 11,1.
1 and a dorsal wall 12, which is in an incomplete bucket shape with the opposite side of the dorsal wall 12 open, and the bottom wall 1
0 is provided with a through hole 15 at the end on the side of the open portion 13, through which the current-carrying portion 8 of the conductive wires 5a, 5b passes. bottom wall 1
Although holes 16 and 17 are provided in the front and rear walls 11 and 11, they are not provided in the back wall 12, nor are they provided in the back of the front and rear walls 11 and 11. At the bottom end, there are conductive wires 5 on both the front and back sides.
Leg portions 18, 18 are formed to straddle the portions a and 5b.

For installing Bucket B at the specified location,
Insert the through hole 15 into the current-carrying part 8, both legs 18,
18 sandwich the conductive wires 5a and 5b. Then,
The bucket B maintains a state where the current-carrying part 8 is inclined toward the front side, and the contact part 8a of the current-carrying part 8 protrudes above the bottom wall 10. The left and right buckets B, B face each other on the open portions 13, 13 side.

In order to ladle the workpiece W to be plated into the plating jig equipped with a large number of buckets B in this way, it is sufficient to drop the end of the workpiece W into the left and right buckets B, and it will stand up just by dropping it into the plating jig. Since this state is maintained and its own weight is likely to act, the lower edge reliably contacts the current-carrying contact portions 8a, 8a so as to conduct electricity. Moreover, since the buckets B and B are tilted toward the front side, it is possible to carry out efficient latching work by holding a large number of items W to be plated one on top of the other in one hand, sliding them out one by one, and dropping them in order from the bottom or top. . Furthermore, since the end of the workpiece W to be plated is received by the back wall 13 of one of the buckets B in the inclined direction, it is easy to position the workpiece W. When racking, the product to be plated W is energized at both ends, but both ends are accommodated in the buckets B, B, and the plating is controlled, so that the plating thickness becomes uniform throughout.

When the plating is finished and the plating liquid is removed, the plating liquid is drained, but since the pair of left and right conductive wires 5a, 5b, the buckets B, B, and the item to be plated W are tilted outward, the plating liquid is drained. The plating liquid is discharged to both sides of the concrete frame A, and the conductive members 6a,
The plating liquid transmitted to 6b reaches the hanging part 7 at the center of the jig frame A and drips there, so that the plating liquid does not splash on the product to be plated below. Moreover, since the plating liquid does not stay in a part, the plating liquid drains very well.

Furthermore, since each of the items W to be plated is tilted toward the front side, drops of the plating liquid dripping from the lower end thereof do not fall onto the item W to be plated below, and even when they do, they only slightly graze and hardly stick.

Moreover, due to such an inclination of each article W to be plated, when delucking, both the left and right conductive wires 5
When you insert your hand into the space 9 between a and 5b and the buckets B and B and scoop up the items W to be plucked one by one from the bottom to the top (arrow P in Figure 1), the items to be plucked will be in your hand. Because W is naturally superimposed and removed,
Unracking work can also be done efficiently.

For similar reasons, racking due to mechanical work,
It is also easy to unravel.

[Other Examples]

FIG. 7 shows another embodiment, and the plating jig in this case generally has a relatively high plating efficiency for the products W to be plated at the upper and lower ends of the jig frame A. Each double bucket at both ends
B ₁ and B ₂ are placed a little apart from the electrode 20, so that the plating thickness can be made uniform between the plated products W, W, . . . .

[Effect of idea]

As explained above, according to the plating jig of this invention, it is very easy to rack and unrack the product to be plated, and not only can the work efficiency be improved, but also the plating thickness distribution can be made uniform. Because the plating thickness distribution is uniform, no auxiliary cathode is required, and the cost of the metal plated on the auxiliary cathode is reduced.Furthermore, the liquid drains well and there is no dripping of liquid onto the plated item below. Therefore, there are excellent effects such as being able to prevent the inconvenience of staining the plated product with the plating solution.

Another advantage is that the plated product can be easily positioned during racking.

[Brief explanation of drawings]

Figures 1 to 6 show one embodiment, Figure 1 is a perspective view, Figure 2 is an enlarged perspective view of main parts, Figure 3 is a cross-sectional view showing how the bucket is installed, and Figure 4 is a third
5 is a cross-sectional view taken along the line X--X, FIG. 5 is a cross-sectional view taken along the Y-Y line, and FIG. 6 is a cross-sectional view taken along the Z-Z line.
FIG. 7 is an explanatory diagram showing another embodiment. FIG. 8 is a perspective view showing a conventional example. A...Jig frame body, B, _B1 , _B2 ...Bucket,
3... Vertical beam, 5a, 5b... Conductive wire material, 8... Current carrying part, 9... Space, 10... Bottom wall.

Claims (1)

[Scope of utility model registration request] A large number of conductive wires are protruded from the left and right vertical bars of the jig frame, facing each other in pairs on the left and right, and each pair of conductive wires is attached at an angle to one side, and a current-carrying part is attached to the tip of each conductive wire. protruding upward, and a bucket with a drainage structure that can drain the plating liquid is attached to the tip of each conductive wire so as to be tilted toward the front side, and a hand is inserted between each pair of left and right conductive wires and the bucket. Each bucket has opposite surfaces open so that the left and right pairs of buckets can support the item to be plated, and the current-carrying part penetrates and protrudes from the bottom wall. Jig for plating.