JP2002275681A - Solution leakage preventive mechanism of plating equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solution leakage preventive mechanism of a plating equipment which is capable of uniformly sealing the upper part to the lower part of a seal regardless of the volume of the solution and makes it possible to obtain good sealing performance by a simple mechanism without using air pressure, or the like. SOLUTION: The side walls of a treating vessel body 1 through which a work is put in and out are provided with slits 2 and 3 in a perpendicular direction and two pieces one set of columnar rolls 4 and 4 as well as 5 and 5 are perpendicularly disposed within the treating vessel body 1 in proximity to the slits 2 and 3 in the state that these rolls are movable horizontally with each other Two pieces one set of the columnar rolls 4 and 4 as well as 5 and 5 are adapted to be attracted to each other by magnetic force. The rolls 4 and 4 as well as 5 and 5 are housed within compartments 6 and 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plating apparatus for plating a plate-like work while transferring the work in a vertical position, and to a mechanism for preventing a treatment liquid from leaking from an inlet / outlet of a processing tank. .

[0002]

2. Description of the Related Art Various types of apparatuses for plating a flat work such as a printed circuit board have been provided. Among these devices, the plating device that continuously transports a flat work in a vertical position does not require a jig, and has a feature that high-speed plating can be performed by equipping with a bath liquid jet mechanism. It is often used because of its existence. In a plating apparatus that continuously transfers such a flat work in a vertical position, since the flat work enters and exits the processing tank below the processing liquid level, leakage of the processing liquid from the entrance and exit becomes a problem. A mechanism for preventing the liquid from leaking out of the plating apparatus has been considered, for example, Japanese Patent Application Laid-Open No. 9-505638.

The apparatus disclosed in Japanese Patent Application Laid-Open No. 9-505638 is provided with a vertical slit for allowing a workpiece to pass through an end wall of a processing compartment, and a pair is loosely inserted into the processing bath in a vertical direction corresponding to the slit. A cylindrical rod or tube that has been arranged so as to be arranged as a seal so that these rods or tubes can be pressed against each other or the end wall of the processing compartment chamber with each other or each time by hydraulic pressure. It is. In this liquid leakage prevention mechanism, the seal which is a rod or a pipe is pressed by the liquid pressure of the bath liquid, so that the seal performance fluctuates due to the fluctuation of the liquid pressure, and the liquid pressure differs between the upper part and the lower part of the seal. Therefore, there is a problem that the seal may be insufficient, especially in a bath where the amount of water in the shower tub is small and the liquid pressure is not applied.

[0004] In addition, as in Japanese Patent Application Laid-Open No. Hei 8-239797, a method of pressing a seal roll by air pressure has been considered, but there is a problem that the structure is complicated and sealing performance is impaired if air supply is cut off. Was.

[0005]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and enables uniform sealing from the upper part to the lower part of the seal irrespective of the amount of liquid, and can be achieved with a simple mechanism without using air pressure or the like. The purpose of the present invention is to provide a liquid leakage preventing mechanism for a plating apparatus that can achieve a high sealing performance.

[0006]

SUMMARY OF THE INVENTION The above problem is caused by providing a vertical slit in a side wall of a processing tank into which a work enters and exits, and a set of two cylindrical rolls in a processing tank adjacent to the slit. The present invention can be solved by the liquid leakage preventing mechanism of the plating apparatus according to the present invention, wherein the two rolls are arranged vertically so as to be movable so that they can be attracted to each other by magnetic force.

[0007] One of the two rolls has a magnet and the other has a built-in magnetic material.
Each of the two rolls has a built-in magnet, and can be embodied by setting the magnets to have a polarity that allows the two rolls to be attracted to each other. Furthermore, a magnet or a magnetic material can be incorporated at both ends in the longitudinal direction of the roll, or a magnet or a magnetic material can be incorporated at an intermediate portion in the longitudinal direction of the roll.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a liquid leakage preventing mechanism of a plating apparatus according to the present invention will be specifically described with reference to the drawings. FIG. 1 is a plan view. As shown in FIG.
However, slits 3 are respectively provided in the side walls on the outlet side of the opposing work in the vertical direction. Inside the processing tanks of the slits 2 and 3, two cylindrical rolls 4, 4 and 5, 5 are arranged vertically along the slits 2 and 3, respectively, as a set of two rolls. , 5, and 5 are in a mutually movable state. Roll 4, 4
, 5, and 5 are accommodated in sections 6, 6, 7, and 7 provided inside the processing tanks of the slits 2 and 3 so as not to largely separate from the positions along the slits 2 and 3.

The rolls 4, 4, 5 and 5 have cylindrical magnets 8 and 9 at both ends in the longitudinal direction of one of the rolls 4 and 5, as shown in the cross section in FIG. Either cylindrical magnetic pieces 10 and 11 are built in at both ends in the longitudinal direction, or cylindrical magnets are provided at both ends in the longitudinal direction of both rolls 4, 4, 5 and 5 as shown in FIG. 8, 8, 9 and 9 are built-in. In FIGS. 3 and 4, the magnets 8, 9 and the magnetic pieces 10, 11 are exposed at the longitudinal end faces of the rolls 4, 4, 5, 5, but the corrosion of the magnets 8, 9 and the magnetic pieces 10, 11 is caused. It is preferable to cover with a corrosion resistant material in order to prevent the magnets 8 and 9 and the magnetic pieces 10 and 11 from being eluted and contaminating the processing solution.

As shown in FIG. 5, the rolls 4, 4, 5 and 5 have cylindrical magnets 8 and 9 in the middle of one of the rolls 4 and 5, and the middle of the other rolls 4 and 5, respectively. At positions opposed to the cylindrical magnets 8 and 9, the cylindrical magnetic pieces 10 and 1 are placed.
1 or, as shown in FIG. 6, columnar magnets 8, 8 and 9, 9 at the opposing positions in the middle of the two rolls 4, 4, 5 and 5. It may be a thing. In order to incorporate the magnets 8, 8, 9 and 9 or the magnetic pieces 10 and 11 in the middle of the rolls 4, 4 and 5, 5, as shown in FIGS. , 5 and 5 are divided in the longitudinal direction, a male thread portion is provided at one joint portion, and a female thread portion is provided at the other joint portion. 12 are formed, and the magnets 8 are formed in the cavities 12, 12.
8 and 9, 9 or the magnetic pieces 10, 10 and 11, 1
1 can be built-in.

In any case, these columnar magnets 8,
It is preferable that the central axis of the magnetic material pieces 10 and 11 in the form of 9 or a column coincide with the central axes of the rolls 4, 4, 5 and 5, and the surfaces of the rolls 4, 4, 5 and 5 increase sealing performance, It is preferable to use an elastic material so as not to damage the work. Also, both rolls 4, 4, 5 and 5 are connected to magnets 8, 8
, And 9 and 9, the polarities of the magnets 8, 8 and 9 and 9 are combined so that the pair of rolls 4, 4 and 5 and 5 attract each other. . Further, the magnets 8, 8 and 9, 9 or the magnetic pieces 10, 1
The positions for incorporating the 0, 11, and 11 are not limited to the both ends or the intermediate portion, and the point is that the rolls 4, 4, 5, and 5 in a pair are stably adsorbed to each other. .

In the above-described embodiment, the partition forming members 13, 13, 14 and 14, which form the partitions 6, 6, 7 and 7, are attached to the processing tank main body 1 having a large opening, and the slits 2 and 3 are provided. Is formed by opposing portions of the partition forming members 13, 13 and 14, 14. This configuration has the advantage that the device can be easily manufactured, but it can also be integrated or divided into different parts. Needless to say, the processing tank body 1 may be provided with reinforcing ribs and the like, the chemical liquid tank may be provided with a processing liquid jet device, a circulation device, a stirring device, and the like, and the washing tank may be provided with a shower device and the like.

A plating line is formed by arranging a plurality of processing tanks configured as described above in a straight line in accordance with the processing steps, and the work W is transferred by a transfer device (not shown).
The treatment tank is filled with necessary chemicals, washing water, etc. according to the treatment process. The work W enters the processing tank body 1 through the slit 2 on the inlet side, exits from the slit 3 on the outlet side, and enters the next processing tank body 1 from the slit 2 on the inlet side of the next adjacent processing tank body 1. Go in. A transfer device having a conventionally known configuration can be used.

Before the work W enters, a pair of two rolls 4, 4, 5 and 5 are attracted to each other by magnetic force, so that they are respectively substantially integrated, and the processing tank body 1 Due to the liquid pressure of the chemical solution inside, it is pressed against the inner wall surfaces of the sections 6, 6, 7, and 7 adjacent to the slits 2 and 3, thereby preventing the treatment liquid from leaking. At this time, a set of two rolls 4, 4
Rolls 4, 4, 5 and 5 are sufficiently divided into sections 6 and 6 even when the hydraulic pressure is low because
And 7, 7 are pressed against the inner wall surface. When the work W enters between the rolls 4, 4 or 5, 5, the pair of rolls 4, 4, 5 and 5 are attracted to each other by magnetic force, and the sections 6, 6 and 7, 7 , The work W can easily enter between the rolls 4, 4, 5, and 5, and the rolls 4, 4, 5, and 5 maintain a state of being mutually attracted across the work W. . Thereby, the space between the work W and the rolls 4, 4 or 5, 5 is sealed.

When the work W is transferred, the rolls 4, 4, or 5, which are mutually adsorbed across the work W, are also transferred together, and the rolls 4, 4, 5, 5 are divided into sections 6, 6 or 7, 7
Is pressed against the wall in the transfer direction of the workpiece W, and the rolls 4, 4 or 5, 5 and the sections 6, 6 or 7,
7 is sealed between the work W and the wall surface on the front side in the transfer direction. When the work W is further transferred, the rolls 4, 4 or 5 and 5 rotate following the work W while being pressed against the wall surface in the transfer direction of the work W in the sections 6, 6 or 7 and 7 to rotate. The seal between W and rolls 4, 4 or 5, 5 and between rolls 4, 4 or 5, 5 and compartments 6, 6 or 7, 7 is maintained.

Therefore, when there is no work W, the rolls 4 and 4 which are attracted to each other by magnetic force and are integrated are formed.
, 5 and 5 are pressed against the inner wall surfaces of the compartments 6, 6 and 7 and 7 by hydraulic pressure, and the rolls 4, 4 and 5 are mutually adsorbed across the work W while the work W is being transferred. ,
5 is conveyed together with the work W and pressed against the wall in the transfer direction of the work W in the section 6, 6 or 7, 7 so that the slits 2 and 3 are always rolls 4, 4, 5 and 5.
Alternatively, the work W is closed by the rolls 4, 4, 5, and 5, and liquid leakage can be suppressed. In addition, even if the thickness of the work W changes, the rolls 4, 4, 5, and 5 adhere to each other across the work W, so that the performance of suppressing the liquid leakage does not change. The rolls 4, 4, 5, and 5 have magnets 8, 8, 9, and 9 built therein.
If a magnetic material is built in the inner walls of 6, 7, and 7, the rolls 4, 4, 5, and 5 can be divided into sections 6, 6, and 7 by magnetic force.
7, the slits 2 and 3 are surely closed even when the liquid pressure is hardly applied.

[0017]

According to the present invention described above, liquid leakage is always prevented even in a processing tank having a low hydraulic pressure, regardless of the presence or absence of a work, regardless of the presence or absence of a work with a simple configuration. It is extremely large to contribute to the industry as to provide a mechanism for preventing the liquid leakage of the plating apparatus.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view showing the embodiment of the present invention.

FIG. 3 is a cross-sectional view illustrating an example of a roll.

FIG. 4 is a sectional view showing another example of the roll.

FIG. 5 is a sectional view showing another example of the roll.

FIG. 6 is a sectional view showing still another example of the roll.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Processing tank main body 2 Slit 3 Slit 4 Roll 5 Roll 6 Section 7 Section 8 Magnet 9 Magnet 10 Magnetic piece 11 Magnetic piece 12 Cavity part 13 Section forming member 14 Section forming member

Claims (5)

[Claims] 1. A vertical slit is provided in a side wall of a processing tank where a work enters and exits, and a slit is provided in a processing tank adjacent to the slit.
A pair of cylindrical rolls are vertically disposed so as to be mutually movable in a horizontal direction, and the pair of rolls are attracted to each other by a magnetic force. Liquid leakage prevention mechanism. 2. The mechanism according to claim 1, wherein the roll is accommodated in a section provided in the processing tank. 3. A magnet is provided on one of two rolls forming a set.
The liquid leakage preventing mechanism for a plating apparatus according to claim 1, wherein a magnetic material is incorporated in each of the other members. 4. The plating according to claim 1, wherein a magnet is incorporated in both of the two rolls forming a set, and the magnet has a polarity in which the two rolls are attracted to each other. Liquid leakage prevention mechanism of the device. 5. A liquid leakage prevention mechanism for a plating apparatus according to claim 1, wherein a magnet or a magnetic material is incorporated at both ends or an intermediate portion or both in the longitudinal direction of the roll. .