JPH0124146Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a plating barrel suitable for plating plate-shaped objects such as ceramic substrates.

BACKGROUND ART Conventionally, when plating the surface of a plate-shaped workpiece such as a ceramic substrate, the workpieces are lined up at intervals and stored in a magazine with a handle through which plating liquid can freely flow. Grasp the handle and place the magazine in a plating bath (electroless plating bath for ceramic substrates)
It was immersed inside and rocked up and down or left and right.

Problems that the invention aims to solve: However, simply by rocking the magazine in this way, it is difficult to stir the plating solution uniformly.
Because of the difference in density in some areas, it is difficult to form a glazed film with a uniform thickness, resulting in so-called "unevenness" or "shading" in plating.

Means for Solving the Problems In order to solve the above problems, the plating barrel of the present invention has a plating system that holds plate-shaped workpieces lined up at intervals between opposing rotating bodies. It has a structure that spans a magazine that allows liquid to flow freely. There are rotating bodies 1, 1 facing each other,
At least one bridged between the rotating bodies 1, 1
The magazine 6 consists of 2 magazines 6.
Side plates 62, 62 and wide end plates 63, 6 at both ends
3 to form a frame-like body, and two side plates 6
A large number of grooves 61 into which the plate-shaped objects 7 are inserted are formed on the opposing inner surfaces of the plates 2 and 62, and the plate-shaped objects 7 inserted into the grooves 61 are formed in both end plates 63, 63. Both ends of two bars 66, 66 which are sandwiched from both sides and cannot be removed are removably inserted and fixed into bar insertion holes 64, 64 formed in the end plates 63, 63, respectively. 63 is fixed to the rotating bodies 1, 1.

Hereinafter, the present invention will be described in detail with reference to Examples.

Embodiment FIG. 1 is a perspective view showing an embodiment of the barrel of the present invention, in which reference numeral 1 indicates a pair of plate-shaped rotating bodies facing each other, and both ends of the shaft 2 of the rotating body 1 are connected to a pair of rotating bodies. It is rotatably supported by a lower end bearing portion of the hanging support arm 3. One suspension arm 3 is provided with a plurality of transmission gears 4a, 4b that transmit rotational driving force from a drive source (not shown) such as a motor while moderately decelerating it, and the last transmission gear 4b is Axis 2 of rotating body 1
It is configured to mesh with a passive gear 5 at the end, thereby causing the rotating body 1 to rotate at a constant speed. Also,
The upper ends of both suspension arms 3 are connected to a lifting device (not shown), and when the lifting device operates, the suspension arms 3
When the rotating body 1 descends, the rotating body 1 is exposed to the plating bath (not shown).
It is designed to be immersed in.

For example, four magazines 6 for holding objects to be processed are spanned between these plate-shaped rotary bodies 1 at angular intervals of 90 degrees. As shown in FIG. 2, this magazine 6 has a large number of grooves 6 on opposing inner surfaces.
1, and wide end plates 63 at both ends thereof, it is constructed into a substantially rectangular frame-like body through which plating liquid can freely flow.
There are bar insertion holes 64 in the upper center and lower center of the
However, fastener insertion holes 65 are bored in each of the four corners of the end plate 63. Inside the magazine 6, as shown in FIG.
A large number of objects 7 are inserted along each groove 61 on the inner surface of the side plate 62 and arranged at intervals.
It is held in such a way that it cannot fall off by two upper and lower bars 66 which are bridged by inserting both ends into the bar insertion holes 64 of both end plates 63. The magazine 6 holding the workpiece 7 in this manner is rotated by fasteners such as bolts 8 and nuts 9 inserted through the fastener insertion holes of the rotating body 1 and the magazine end plate 63, as shown in FIG. body 1
As shown in FIG. 4, the magazine side plate 62 is attached in a direction perpendicular to the radial direction of the rotating body 1. The mounting direction of this magazine can be freely changed, for example, by mounting the magazine side plate 62 in a direction parallel to the radial direction of the rotating body 1.

In the above embodiment, a disc-shaped rotating body 1 is used, but it may also be a spoked ring, for example. Furthermore, it is also possible to use a belt, chain, or the like instead of gears as the driving force transmission means. Furthermore, in the above embodiment, four magazines 6 are hung over each other, but if large-volume processing is required, more magazines 6 may be installed as appropriate.Also, as magazines, a type of mesh basket through which the plating solution can freely flow is also used. It is possible.

In addition, when the workpiece 7 is a conductive material such as an iron plate and electrolytically plated, the rotating body 1, magazine 6, and other members must be made of conductive metal etc. in order to supply electricity to the workpiece 7. However, if the object 7 to be treated is a non-conductive material such as the ceramic substrate mentioned above and electroless plating is to be performed, each member is desirably made of a synthetic resin or the like having excellent corrosion resistance.

Function and Effect of the Idea When plating is performed using the plating barrel configured as described above, the suspension arm 3 is
As shown in FIG. 4, the magazine 6 holding the unprocessed materials 7 is immersed in the plating bath 10 along with the rotating body 1, and these are rotated at a constant speed by the power from the drive source. Rotating it has the following effects.

The workpiece 7 is inserted into the groove 61 formed in the opposing surfaces of the two side plates 62, and the workpiece 7
Since the object 7 is sandwiched between two bars 66 and held so that it cannot fall off, the object 7 to be processed will not fall off and will not be damaged.

When the rotating bodies 1, 1 are rotated, the rotating bodies 1, 1
The magazine 6 suspended between the two can work like the blades of a water wheel to agitate the plating solution.
Partial differences in density of the plating solution are eliminated, and a homogeneous plating film can be formed.

In addition to the above, during rotation, the objects 7 held at intervals in the magazine 6 have their wide sides facing in a direction substantially perpendicular to the direction of rotation, and
Since the plating liquid passes between the objects 7 to be treated at a constant flow rate, the thickness of the plating film formed can be made uniform, and the occurrence of "unevenness" and "shading" can be prevented.
Here, if there is a gap between the workpiece 7 and the bar 66, as the magazine 6 rotates, the workpiece 7
moves, and air bubbles adhering to the object 7 to be treated are removed, resulting in a dense, high-quality plating film with almost no pinholes or the like.

Magazine 6 spanned between rotating bodies 1 and 1
Since it can be carried or moved in that state, it is possible to simultaneously process a large amount of objects 7 for a series of degreasing, activation, cleaning, etc. steps required for plating. , efficient.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the plating barrel of the present invention, Fig. 2 is a perspective view of the magazine, Fig. 3 is a partially cutaway explanatory view showing the mounting state of the magazine holding the workpiece, and Fig. 4 is a perspective view of an embodiment of the plating barrel of the present invention. The figure is an explanatory diagram of the usage state of the same embodiment. 1...Rotating body, 6...Magazine, 7...Object to be processed.

Claims (1)

[Scope of utility model registration request] Consisting of opposing rotating bodies 1, 1 and at least one magazine 6 spanned between the rotating bodies 1, 1, the magazine 6 has two side plates 62, 6.
2 and wide end plates 63, 63 at both ends to form a frame-like body, and a large number of grooves 6 into which plate-shaped objects 7 are inserted into the opposing inner surfaces of the two side plates 62, 62.
1 is formed, and both end plates 63, 63 have two bars 66, 66 at both ends, which sandwich the plate-shaped workpiece 7 inserted into the groove 61 from both sides to prevent it from falling off. They are removably inserted and fixed into bar insertion holes 64, 64 formed in plates 63, 63, respectively,
A plating barrel characterized in that end plates 63, 63 are fixed to the rotating bodies 1, 1.