JPH0645920B2 - Barrel plating device - Google Patents

Description

The present invention relates to a barrel plating apparatus capable of performing a series of processing operations including a plating step in a common barrel. More specifically, the present invention relates to a plating bath immersion type barrel plating apparatus equipped with a perforated barrel.

[Conventional technology]

As a barrel plating device, a plating bath immersion type barrel plating device such as a horizontal rotary barrel plating device and a tilt rotary barrel plating device has been widely known.

In the conventional plating bath immersion type barrel plating apparatus described above, generally, while immersing a perforated barrel into which a work (workpiece) is placed in a plating bath and rotating the barrel about its horizontal axis or tilt axis, Barrel plating is carried out by applying an electric current between the anode and the anodes juxtaposed outside the porous barrel.

Some tilt-rotating barrel plating equipment also serves as a plating bath, and an anode is charged from above into a non-hole barrel into which a work is charged, and tilted or swung between the inner work and the anode. There is also known a non-immersion type in which barrel plating is performed by energizing.

[Problems to be solved by the invention]

In the conventional plating bath immersion type barrel plating apparatus, since the apparatus main body and the perforated barrel are integrated, it is difficult to introduce automation into a series of workpiece processing operations, and the anode is arranged side by side outside the perforated barrel, Since the porous side wall of the porous barrel exists between the anode and the anode, there is a problem that the flow of the plating solution and the electrolytic current is obstructed. In addition, in addition to the above-mentioned drawbacks, the horizontal immersion barrel plating apparatus of the plating bath immersion type requires an opening / closing operation of the opening / closing part of the barrel side wall when loading / unloading the work, so it is difficult to introduce automation of a series of processing operations. At the same time, there is a problem that the opening / closing part is apt to cause a defect due to the clogging of the work.

On the other hand, in a non-immersion type barrel plating apparatus equipped with a non-perforated barrel, the anode is charged inside the non-perforated barrel, so there is no obstacle such as a porous side wall between the work and the anode, and the plating solution and Although the flow of electrolytic current is good, it requires a separate plating solution preparation tank that is connected to the barrel via a plating solution circulation device.Because it is a non-perforated barrel, it remains in the non-perforated barrel. There is a problem that it is difficult to wash and dry the workpiece.

The object of the present invention is that the loading and unloading of the work can be easily carried out without using an opening / closing part, the plating solution and the electrolytic current flow between both electrodes are good, and moreover, in the state of being kept in the barrel. It is an object of the present invention to provide a plating bath immersion type barrel plating apparatus in which a work can be easily washed and dried and automation can be easily introduced into a series of processing operations.

[Technical means for solving problems]

The barrel plating apparatus according to the present invention is, in the plating bath immersion type barrel plating apparatus, a perforated barrel having at least an opening capable of loading and unloading a work on an end face in the rotation axis direction,
The apparatus is characterized by comprising barrel supporting means for detachably rotatably supporting the perforated barrel in the apparatus body, and anode supporting means for removably loading the anode from the opening of the perforated barrel.

Hereinafter, the present invention will be described with reference to the drawings. In FIG. 1, which is a cross-sectional view of an essential part of an example of a barrel plating apparatus according to the present invention, a porous barrel (1) is provided with a conductive bearing (2) recessed on one end face in the barrel rotation axis direction, a barrel rotation shaft. An opening (3) that is tapered and opened at the other end face in the direction
It is composed of a conductive porous cylinder provided with a large number of through holes (4) ... (4) formed in the side wall and an annular gear (5) formed around the side wall. Also, perforated barrel (1)
A large number of works (6) ... (6) introduced from the opening (3) are accommodated inside.

The conductive bearing shaft (2) of the porous barrel (1) is detachably and slidably mounted with a conductive short shaft (8) vertically drilled from a first supporting side plate (7) vertically provided from above. To form a barrel support means, and the cathode feed line (9) is connected to the conductive short shaft (8) of the barrel support means.

Further, an anode support (11), which is detachably projected in the horizontal direction from a second supporting side plate (10) vertically hung from above in the opening (3) of the porous barrel (1), is detachable and It is slidably inserted and constitutes an anode supporting means. As shown in FIG. 2 which is a sectional view taken along line I-I in FIG. 1, the anode support (11) communicates with the plating solution supply port (12) formed in the second support side plate (10). And a porous anode (14) attached by opening a side wall lower part of the plating solution introduction passage (13), and an anode feed line (15) is connected to the porous anode (14). Has been done. The porous anode (14) is composed of a plurality of insoluble conductive rod-like bodies (16), ... (16) arranged in a comb shape in the barrel rotation axis direction so as to form a cylindrical surface. In that case,
It is arranged in a substantially semi-cylindrical shape selectively at a position facing the accommodated works (6), ...

Furthermore, two support shafts (1
7) and (17) are passed through the first supporting side plate (7),
The feed screw shaft (18) which is fixed and is slidably passed through the second support side plate (10) and which is juxtaposed adjacent to the support shafts (17) and (17) has the first support. The second support side plate (1) is passed through the side plate (7) in a screwed state.
0). A barrel driving gear (19) is pivotally supported on the first supporting side plate (7), and the barrel driving gear (19) is meshed with an annular gear (5) on the side wall of the multi-hole barrel (1). The perforated barrel (1) is vertically supported by the support shafts (17) and (17) through the first supporting side plate (7) and the second supporting side plate (10), and is supported by the plating bath (2).
0) and is immersed in the plating bath (21).

[Operation of the invention]

During barrel plating, when the barrel driving gear (19) is rotated by a driving source (not shown), the porous barrel (1) is rotationally driven around the conductive short shaft (8) and the anode support (11). It When the cathode power supply line (9) and the anode power supply line (15) are energized, the workpieces (6) ... (6) are rotated and slidably formed by the conductive short shaft (8) and the conductive bearing (2), and further porous. Cathode power is supplied through the barrel (1) body in sequence, and the porous anode (14) is also supplied with anode power, so that the plating bath (21) is placed between the work (6) .. (6) and the porous anode (14). An electrolytic current flows through the.

Further, the plating solution supply port (12) of the second supporting side plate (10)
The circulating plating solution is supplied from the plating solution, and the plating solution thus supplied is supplied to the plating solution introduction path (1) in the anode support (11).
3) and forcedly flows from the gap between the insoluble conductive rod-shaped bodies (16) ··· (16) in the porous anode (14) into the vicinity of the electrode in the porous barrel (1).

As described above, since the porous anode (14) is used as the anode, a large anode area is secured, and the porous anode (14) is located at a position facing the internal works (6). All of the configurations such as the selectively arranged configuration and the configuration in which the plating solution is forced to flow into the vicinity of the gap contribute to the realization of superior barrel plating.

In the above, the opening (3) of the porous barrel (1) is used for loading and unloading the workpieces (6), (6), charging the anode support (11) during barrel plating, and supplying plating solution,
Further, it is also useful for supplying cleaning water or dry air when cleaning the work or drying the work. Further, the tapered portion of the perforated barrel (1) near the opening (3) serves as a guide path for smooth loading and unloading of the works (6), ... (6). In addition, a large number of flow holes (4) · · (4) on the side wall of the porous barrel (1) are used for starting the flow of the plating bath during barrel plating, draining water during work cleaning and air flow during work drying. Useful for.

Next, when the work (6) ... (6) is carried in and out, washed, dried, etc., the feed screw shaft (18) is rotated in a required direction by a handle (not shown) or the like. Moves in the direction of the second supporting side plate (10) while being screwed with the first supporting side plate (7), the second supporting side plate (1)
0) also moves so as to separate from the first supporting side plate (7) while being guided by the supporting shafts (17) and (17) in a sliding state,
Therefore, the anode support (11) is separated from the opening (3),
The opening (3) can be used for the above purpose, and further, the perforated barrel (1) can be detached from the main body of the device if necessary. Needless to say, when the feed screw shaft (18) is rotated in the opposite direction to the above, the anode support (11) approaches the opening (3) and is inserted into the anode support (11) in the opposite manner to the above. Yes.

Further, the porous barrel (1) is installed in the plating bath (20), pulled up from the plating bath (20), the work (6),
-When carrying in and out (6), washing and drying, etc., the perforated barrel (1) is moved vertically or horizontally, or the perforated barrel (1) is rotated so that the barrel rotation axis is inclined or becomes vertical. In this case, the perforated barrel (1), the first supporting side plate (7) and the second supporting side plate (10), the supporting shafts (17), (17), the feed screw shaft (18) and the like are integrally operated as a unit. Alternatively, if necessary, only the perforated barrel (1) can be removed from the unit to perform the required operation.

It should be noted that the above-mentioned embodiments are presented only for explaining the present invention, and do not limit the present invention. For example, the anode in the present invention does not have to be porous, and the porous anode in the above examples may be an insoluble conductor or an insoluble reticulated conductor having a large number of punched holes, slits or the like perforated, and plated. The liquid may be supplied at a position apart from the anode. Further, the anode support may be loaded into the porous barrel without sliding contact with the opening of the porous barrel, and another means can be adopted for forming or supporting the anode on the anode support. Further, the porous barrel in the present invention may be non-conducting as in the prior art, and may be directly cathode-fed to the work in the same manner as in the conventional case. It can also be performed at a place other than the rotary sliding part.

〔The invention's effect〕

As described above, in the barrel plating apparatus according to the present invention, since the perforated barrel can be freely removed from the apparatus main body, it is easy to introduce automation into a series of work processing operations, and the end face in the rotational axis direction of the perforated barrel is Since it has an opening that allows loading and unloading of workpieces, it is easy to introduce automation into a series of workpiece processing operations, and it is easy to supply the plating solution and wash or dry the workpiece using the opening. Further, since barrel plating is performed in a state where the anode is inserted into the porous barrel through the opening, excellent effects such as good flow of the plating solution and the electrolytic current between both electrodes are exhibited.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part of an example of a barrel plating apparatus according to the present invention, and FIG. 2 is a sectional view taken along the line I-I in FIG. <Explanation of main symbols> 1 ... perforated barrel, 3 ... opening, 6 ... work, 11
…… Anode support, 14 …… Porous anode, 20 …… Plating bath, 21 …… Plating bath

Claims (6)

[Claims] 1. In a plating bath immersion type barrel plating apparatus, a perforated barrel having at least an opening capable of loading and unloading a work on an end surface in the direction of the rotation axis, and a barrel support for rotatably supporting the perforated barrel on an apparatus main body in a detachable manner. A barrel plating apparatus comprising: a means and an anode supporting means for loading an anode so that the anode can be taken out from the opening of the porous barrel. 2. The barrel plating apparatus according to claim 1, wherein the anode supporting means includes a plating solution introducing passage and a porous anode provided by opening a side wall of the plating solution introducing passage. 3. The barrel plating apparatus according to claim 2, wherein the porous anode comprises a plurality of insoluble conductive rod-shaped bodies arranged in parallel in the barrel rotation axis direction. 4. The porous anode according to claim 2 or 3, wherein the porous anode is arranged at a position facing the work in the porous barrel.
The barrel plating apparatus according to the item. 5. The barrel plating apparatus according to claim 1, wherein the porous barrel is made of a conductor. 6. A barrel plating apparatus as set forth in claim 5, wherein the multi-layer barrel is cathode-powered through its rotary sliding portion.