JP6921432B2 - Electrolytic cleaning equipment - Google Patents

Description

The present invention relates to an electrolytic cleaning device for electrolytically cleaning a metal object to be cleaned.

Conventionally, as an apparatus for cleaning a metal object to be cleaned, for example, an ultrasonic electrolytic cleaning apparatus as disclosed in Patent Document 1 has been provided.

Such an ultrasonic electrolytic cleaning device is a cleaning tank to which an electrolytic cleaning liquid is supplied, an anode electrode body arranged in the cleaning tank, and a conductive net-like body as a cathode electrode body, and is vertically above and below the anode electrode body. There is an ultrasonic electrolytic cleaning device including a conductive network body arranged to face each other in the direction and an ultrasonic generator that applies ultrasonic vibration to the cleaning tank.

In the ultrasonic electrolytic cleaning apparatus having the above configuration, the object to be cleaned (object to be cleaned) is placed in the cleaning tank (in the electrolytic cleaning solution) together with the conductive network in a state of being placed on the conductive network, and the anode electrode is used. The body is placed above the object to be cleaned.

When an electric current is applied to the anode electrode body and the conductive network in this state, a voltage is applied between the anode electrode and the conductive network, and the surface of the object to be cleaned is electrolyzed and adhered. Is blown away by the electrolytic gas.

Further, since the ultrasonic vibration generated by the ultrasonic generator is transmitted to the inside of the cleaning tank, the deposits are promoted to be separated from the object to be cleaned by the assistance of the ultrasonic vibration.

JP-A-2002-363800

By the way, in the above-mentioned conventional ultrasonic electrolytic cleaning device, the ultrasonic vibration generated by the ultrasonic generator is transmitted to the cleaning tank and the object to be cleaned, so that the cleaning tank and the object to be cleaned may be loaded and damaged. there were.

Therefore, in view of such circumstances, it is an object of the present invention to provide an electrolytic cleaning apparatus capable of enhancing the cleaning power while preventing damage to the object to be cleaned and the apparatus.

The electrolytic cleaning apparatus of the present invention is a cleaning tank to which an electrolytic cleaning liquid is supplied, and has a cleaning tank having a discharge port provided at the bottom for discharging the supplied electrolytic cleaning liquid.
A supply means for supplying the electrolytic cleaning liquid to the cleaning tank, and
An anode body and a cathode body, which are arranged side by side in the vertical direction in the washing tank and are arranged so as to apply a voltage between them, are provided.
The anode body and the cathode body arranged on the lower side are arranged on the discharge port side in the cleaning tank in the vertical direction in a state where the object to be cleaned is placed.

According to the electrolytic cleaning device having the above configuration, the electrolytic cleaning liquid supplied into the cleaning tank is discharged to the outside of the cleaning tank from the discharge port provided at the bottom, and thus goes toward the discharge port in the cleaning tank. A flow of the electrolytic cleaning liquid is generated, and the flow of the electrolytic cleaning liquid becomes faster as the location is closer to the discharge port.

In the electrolytic cleaning apparatus having the above configuration, the cathode body and the anode body on which the cleaning object is placed are arranged on the discharge port side in the cleaning tank in the vertical direction, so that the electrolytic cleaning liquid can be used. The object to be cleaned is placed in a place where the flow is fast.

Therefore, the deposits can be peeled off by the electrolytic gas generated from the surface of the object to be cleaned by the voltage applied between the cathode body and the anode body, and the deposits can be washed away by the flow of the electrolytic cleaning liquid.

In this way, the electrolytic cleaning device having the above configuration can peel off the deposits adhering to the cleaning target by the flow of the electrolytic cleaning liquid, so that the cleaning target can be cleaned while suppressing the load on the cleaning tank and the cleaning target. You can wash things.

In the electrolytic cleaning device of the present invention
The anode body may be arranged above the cathode body.

According to this configuration, the anode is arranged on the upstream side of the cathode body in the direction in which the electrolytic cleaning liquid flows toward the discharge port, so that the direction in which the electrolytic cleaning liquid flows toward the discharge port and the anode and cathode The direction in which the current flows with the body is the same, and the electrolytic action on the deposits of the object to be cleaned is easily promoted.

In the electrolytic cleaning device of the present invention
The anode body and the cathode body arranged at least below may be provided with a distribution structure for circulating the electrolytic cleaning liquid in the vertical direction.

According to such a configuration, the flow of the electrolytic cleaning liquid from the upper side to the discharge port side in the cleaning tank is less likely to be blocked by the anode body and the cathode body, so that the deposits of the cleaning object are easily peeled off by the flow of the electrolytic cleaning liquid. Become.

In the electrolytic cleaning device of the present invention
The bottom portion may include a tapered portion formed so as to extend outward from the discharge port portion and to be inclined downward toward the discharge port portion side.

According to such a configuration, since the flow of the electrolytic cleaning liquid toward the discharge port portion is accelerated by the tapered portion, the deposits of the cleaning object are easily peeled off by the flow of the electrolytic cleaning liquid.

According to the electrolytic cleaning apparatus of the present invention, it is possible to achieve an excellent effect that the cleaning power can be enhanced while preventing damage to the object to be cleaned and the apparatus.

It is an exploded perspective view of the electrolytic cleaning apparatus which concerns on one Embodiment of this invention. It is a vertical sectional view of the electrolytic cleaning apparatus which concerns on the same embodiment. It is a vertical sectional view of the electrolytic cleaning apparatus which concerns on other embodiment of this invention. It is a vertical sectional view of the electrolytic cleaning apparatus which concerns on another embodiment of this invention. It is a vertical sectional view of the electrolytic cleaning apparatus which concerns on still another Embodiment of this invention. It is a vertical sectional view of the electrolytic cleaning apparatus which concerns on still another Embodiment of this invention, (a) is a plan view, (b) is a side view, (c) is a bottom view.

Hereinafter, the electrolytic cleaning apparatus according to the embodiment of the present invention will be described with reference to the accompanying drawings.

The electrolytic cleaning device according to the present embodiment is configured to electrolytically clean a metal object to be cleaned (for example, a mold or the like).

As shown in FIG. 1, the electrolytic cleaning apparatus includes a cleaning tank 2 to which an electrolytic cleaning liquid is supplied, and a cleaning tank 2 having a discharge port 22 provided at the bottom for discharging the supplied electrolytic cleaning liquid. (See FIG. 2), a spare tank 3 for accommodating the cleaning tank 2, and a supply means 4 (see FIG. 2) for supplying the electrolytic cleaning liquid to the cleaning tank 2 are arranged side by side in the cleaning tank 2 in the vertical direction and opposed to each other. It is provided with an anode body 5 and a cathode body 6 configured to apply a voltage between the two.

As shown in FIG. 2, the cleaning tank 2 according to the present embodiment includes a bottomed tubular tank main body 20, a supply port 21 for supplying an electrolytic cleaning liquid to the tank main body 20, and a tank main body. It has a discharge port 22 for discharging the electrolytic cleaning liquid from the inside of the 20.

In the cleaning tank 2, the electrolytic cleaning liquid is continuously supplied from the supply port 21 and the electrolytic cleaning liquid is discharged from the discharge port 22, so that the electrolytic cleaning liquid is electrolyzed while maintaining the stored amount of the electrolytic cleaning liquid at a predetermined amount. It is configured to circulate the cleaning liquid. In the present embodiment, the electrolytic cleaning liquid discharged from the discharge port 22 is supplied again from the supply port 21 into the cleaning tank 2 to circulate the electrolytic cleaning liquid.

The tank body 20 has a bottom 200 and a tubular peripheral wall 201 that stands up from the entire outer peripheral edge of the bottom 200.

The bottom portion 200 includes a flat portion 200a and a tapered portion 200b formed so that the inner diameter becomes smaller toward the lower side. The bottom portion 200 is formed with a through hole H communicating with the inside and outside of the tank body portion 20, and the tapered portion 200b is configured so that the internal space communicates with the through hole H.

The supply port portion 21 is composed of an opening edge portion of the tank body portion 20 (that is, an upper end edge portion of the peripheral wall portion 201). Therefore, the tank body 20 is configured so that the electrolytic cleaning liquid can be supplied to the inside through the opening on the upper side.

The discharge port 22 is provided at the bottom 200 of the tank body 20 and is configured to communicate the inside and outside of the tank body 20 in the vertical direction. Therefore, the electrolytic cleaning liquid supplied into the tank main body 20 through the supply port 21 flows from the upper side to the lower side (that is, from the supply port 21 side to the discharge port 22 side).

Further, since the discharge port portion 22 according to the present embodiment is continuously provided at the tip end (lower end) of the taper portion 200b, the electrolytic cleaning liquid in the tank body portion 20 flows into the discharge port portion 22 through the taper portion 200b. Since the flow velocity of the electrolytic cleaning liquid increases when it passes through the tapered portion 200b, the flow velocity of the electrolytic cleaning liquid in the tank main body 20 increases accordingly.

The spare tank 3 is configured to temporarily store the electrolytic cleaning liquid discharged from the discharge port 22 of the cleaning tank 2.

The spare tank 3 has a tubular wall portion 30 that surrounds the periphery of the cleaning tank 2, and an outer bottom portion 31 that is arranged at a position separated downward from the bottom portion 200 of the cleaning tank 2.

The outer bottom portion 31 is formed with an outer discharge port for discharging the electrolytic cleaning liquid flowing from the cleaning tank 2 to the outside.

The supply means 4 is configured to circulate the electrolytic cleaning liquid in the cleaning tank 2, and in the present embodiment, it is configured to collect the electrolytic cleaning liquid in the spare tank 3 and supply it to the cleaning tank 2. ..

The supply means 4 is a recovery pipe section 40 that collects the electrolytic cleaning liquid in the spare tank 3, and supplies the recovery pipe section 40 communicating with the inside of the spare tank 3 and the electrolytic cleaning liquid collected in the recovery section to the cleaning tank 2. It has a supply pipe section (not shown).

Further, the supply means 4 has a suction means 41 connected to the recovery pipe portion 40 and the supply pipe portion, and the suction means 41 draws the electrolytic cleaning liquid through the recovery pipe portion 40 and sucks the electrolytic cleaning liquid. It is configured to be sent to the supply pipe section.

The supply means 4 is configured to supply the electrolytic cleaning liquid into the cleaning tank 2 from above the cleaning tank 2, for example.

The anode body 5 is located at a position corresponding to the discharge port portion 22 and is arranged above the cathode body 6. Therefore, the anode body 5 is arranged on the upstream side of the cathode body 6 in the direction in which the electrolytic cleaning liquid flows toward the discharge port portion 22. Therefore, in the present embodiment, the direction in which the electrolytic cleaning liquid flows toward the discharge port portion 22 and the direction in which the current flows between the anode body 5 and the cathode body 6 are the same.

As shown in FIG. 1, the anode body 5 has an anode main body 50 that is arranged to face the object to be cleaned, and an anode terminal 51 for supplying an electric current to the anode main body 50.

The anode main body 50 has a flat plate shape and is made of metal. Further, the anode main body 50 is configured to allow the flow of the electrolytic cleaning liquid in the vertical direction. The anode main body 50 according to the present embodiment is made of a metal mesh, which allows the flow of the electrolytic cleaning liquid in the vertical direction. As described above, the anode main body 50 is formed of a metal mesh to form a distribution structure in which the electrolytic cleaning liquid is circulated in the vertical direction.

The anode terminal portion 51 is made of metal and is configured to be conductive with the anode main body portion 50, so that a current applied from the outside is transmitted to the anode main body portion 50. Further, the anode terminal portion 51 may be configured to be hookable on the spare tank 3 and may be configured so that the anode terminal portion 51 can be suspended in the cleaning tank 2.

The anode terminal portion 51 according to the present embodiment includes a long connecting portion 510 erected on one surface of the anode main body portion 50 and an anode connecting portion 511 provided at the upper end portion of the connecting portion 510. It is configured so that an electric current is applied to the anode connection portion 511 from the outside.

The cathode body 6 has a cathode main body 60 on which an object to be cleaned is placed, and a cathode terminal 61 for supplying an electric current to the cathode main body 60.

The cathode body 60 is made of metal. The cathode body 60 is also configured to allow the electrolytic cleaning liquid to flow in the vertical direction. The cathode main body 60 according to the present embodiment is composed of a wire mesh, whereby the flow of the electrolytic cleaning liquid in the vertical direction can be allowed.

Further, the cathode main body 60 is formed in a basket shape and has a flat plate-shaped bottom plate 600 and a side wall 601 that stands up from the entire outer peripheral edge of the bottom plate 600. The bottom plate portion 600 and the side wall portion 601 according to the present embodiment are both configured in a net shape. As described above, the cathode main body 60 is formed of a wire mesh to form a distribution structure in which the electrolytic cleaning liquid is circulated in the vertical direction.

Further, as shown in FIG. 2, the cathode main body 60 is on the discharge port 22 in the cleaning tank 2 and the depth of the cleaning tank 2 in a state where the cleaning object O is placed on the bottom plate 600. It is arranged on the discharge port 22 side in the direction. Further, the cathode main body 60 is arranged near the bottom 200 in the vertical direction.

The cathode terminal portion 61 is made of metal and is configured to be conductive with the cathode main body portion 60.
The cathode terminal portion 61 is hooked on the spare tank 3.

The cathode terminal portion 61 according to the present embodiment includes an extending portion 610 extending upward from the cathode main body portion 60 and a cathode connecting portion 611 connected to the tip portion of the extending portion 610. It is configured so that an electric current is applied to the cathode connection portion 611 from the outside.

The configuration of the electrolytic cleaning device 1 according to the present embodiment is as described above. According to the electrolytic cleaning device 1 of the present embodiment, the electrolytic cleaning liquid supplied into the cleaning tank 2 is discharged to the outside of the cleaning tank 2 from the discharge port 22 provided at the bottom 200, so that the cleaning tank 2 Inside, a flow of the electrolytic cleaning liquid is generated toward the discharge port portion 22, and the flow of the electrolytic cleaning liquid becomes faster as the location is closer to the discharge port portion 22.

In the electrolytic cleaning device 1 of the present embodiment, the cathode body 6 and the anode body 5 on which the cleaning object O is placed are arranged on the discharge port 22 side in the cleaning tank 2 in the vertical direction. Therefore, the cleaning object O is arranged at a place where the electrolytic cleaning liquid flows quickly.

Therefore, the voltage applied between the cathode body 6 and the anode body 5 accelerates the peeling of the deposits with the electrolytic gas generated from the surface of the object O to be cleaned, and the deposits can be washed away by the flow of the electrolytic cleaning liquid.

As described above, in the electrolytic cleaning device 1 of the present embodiment, the deposits of the object O to be cleaned are peeled off by the flow of the electrolytic cleaning liquid from the supply port 21 side to the discharge port 22 side (that is, from the upper side to the lower side). Therefore, the cleaning target O can be cleaned while suppressing the load applied to the cleaning tank 2 and the cleaning target O. Therefore, the electrolytic cleaning device 1 of the present embodiment can exert an excellent effect that the cleaning power can be enhanced while preventing damage to the object O to be cleaned and the device.

Further, in the electrolytic cleaning device 1 of the present embodiment, since the discharge port 22 is provided at the tip of the tapered portion 200b, the flow velocity of the electrolytic cleaning liquid increases when passing through the tapered portion 200b. Along with this, the flow of the electrolytic cleaning liquid in the cleaning tank 2 is accelerated, so that the deposits of the object O to be cleaned are easily peeled off by the flow of the electrolytic cleaning liquid.

Further, in the electrolytic cleaning device 1 of the present embodiment, the anode body 5 and the cathode body 6, more specifically, the anode main body 50 and the cathode main body 60 which are vertically opposed to the object O to be cleaned. Is configured to flow the electrolytic cleaning liquid in the vertical direction, so that the flow of the electrolytic cleaning liquid from the upper side toward the discharge port 22 side in the cleaning tank 2 is less likely to be blocked by the anode body 5 and the cathode body 6. As a result, the deposits of the object O to be cleaned are easily peeled off by the flow of the electrolytic cleaning solution.

Further, in the cleaning tank 2, the anode body 5 is arranged on the upstream side of the cathode body 6 in the direction in which the electrolytic cleaning liquid flows toward the discharge port portion 22, so that the electrolytic cleaning liquid flows toward the discharge port portion 22. And the direction in which the current flows between the anode body 5 and the cathode body 6 coincide with each other, which facilitates the electrolysis action of the object O to be cleaned on the deposits.

The electrolytic cleaning device 1 of the present invention is not limited to the above embodiment, and it goes without saying that various modifications can be made without departing from the gist of the present invention.

In the above embodiment, the electrolytic cleaning device 1 includes a spare tank 3 for accommodating the cleaning tank 2, but is not limited to this configuration. For example, the electrolytic cleaning device 1 does not have to include the spare tank 3. In this case, the electrolytic cleaning device 1 may be configured such that the supply device collects the electrolytic cleaning liquid directly from the discharge port 22 of the cleaning tank 2.

In the above embodiment, the bottom portion 200 of the cleaning tank 2 includes a flat portion 200a and a tapered portion 200b, but the configuration is not limited to this. For example, the bottom portion 200 of the cleaning tank 2 may be composed of only a flat surface as shown in FIG. 4, or as shown in FIG. 5, the discharge port portion 22 goes upward from the discharge port portion 22. It may be composed of only a tapered portion 200b that is inclined so as to spread outward in the hole radial direction.

In the above embodiment, the supply means 4 is configured to supply the electrolytic cleaning liquid from above the cleaning tank 2, but is not limited to this configuration. For example, the supply means 4 may be configured to supply the electrolytic cleaning liquid from the side of the cleaning tank 2 (for example, the peripheral wall portion 201 of the tank main body 20). However, in order to accelerate the flow of the electrolytic cleaning liquid from the supply port 21 side to the discharge port 22 side in the cleaning tank 2, the supply means 4 is configured to supply the electrolytic cleaning liquid from above the cleaning tank 2. It is preferable to have it.

In the above embodiment, the cathode main body 60 is arranged near the bottom 200 (discharge port 22) in the vertical direction, but the present invention is not limited to this configuration. As shown in FIG. 3, for example, the cathode main body 60 may be arranged near the central portion as long as it is displaced from the central portion to the bottom 200 side in the vertical direction, or may be arranged on the bottom 200. It may be placed on top of each other.

Although not particularly mentioned in the above embodiment, the supply means 4 may include, in addition to the suction means 41, a filter or the like for filtering the electrolytic cleaning liquid recovered from the reserve tank 3.

In the above embodiment, the anode main body 50 has a distribution structure formed by using a metal mesh, but the present invention is not limited to this structure. For example, the anode main body 50 does not have to be made of a metal mesh as long as the flow of the electrolytic cleaning liquid in the vertical direction is allowed (for example, a metal flat plate or a metal flat plate having holes formed therein). May be).

In the above embodiment, the cathode main body 60 is composed of a wire mesh, and the distribution structure is configured by the mesh of the wire mesh, but the present invention is not limited to this configuration. For example, the cathode main body 60 does not have to be made of wire mesh as long as the flow of the electrolytic cleaning liquid in the vertical direction is allowed.

Although not particularly mentioned in the above embodiment, the number of through holes H for discharging the electrolytic cleaning liquid from the cleaning tank 2 may be one or a plurality. Further, the number of the discharge port portion 22 and the taper portion 200b may be one or a plurality according to the number of through holes H.

For example, in the cleaning tank 2 shown in FIGS. 6 (a) and 6 (b), a plurality of through holes H are arranged in multiple rows and multiple columns (in the cleaning tank 2 of FIG. 6 (a), 2 rows and 7 columns). It is provided as. The number and formation positions of the plurality of through holes H are not particularly limited, but at least a plurality of through holes H are formed in the area below the anode body 5 and the cathode body 6 (cleaning object O). Is preferable.

Further, as shown in FIG. 6B, each discharge port portion 22 has a bent shape, but may have a straightly extended shape. Further, when each discharge port 22 has a bent shape, the directions of the openings of the discharge port 22 serving as the outlet of the electrolytic cleaning liquid may be the same direction or different directions.

The discharge port portion 22 may be provided one by one for each through hole H, or the discharge port portion 22 may be provided for a plurality of through holes H (FIG. 6 (b). ), One discharge port 22 is provided in the two through holes H).

In the above embodiment, the through hole H formed in the bottom 200 has a circular shape, but the structure is not limited to this. For example, the through hole H formed in the bottom 200 may be elliptical, trapezoidal, or. It may be a polygonal shape such as a pentagon or an octagon.

1 ... Electrolytic cleaning device, 2 ... Cleaning tank, 3 ... Spare tank, 4 ... Supply means, 5 ... Anode, 6 ... Cathode, 20 ... Tank body, 21 ... Supply port, 22 ... Discharge port, 31 ... outer bottom, 40 ... recovery tube, 41 ... suction means, 50 ... anode body, 51 ... anode terminal, 60 ... cathode body, 61 ... cathode terminal, 200 ... bottom, 200a ... flat, 200b ... Tapered part, 201 ... Peripheral wall part, 510 ... Connection part, 511 ... Anode connection part, 600 ... Bottom plate part, 601 ... Side wall part, 610 ... Extension part, 611 ... Cathode connection part, H ... Through hole, O ... Cleaning target Stuff

Claims (4)

A cleaning tank having an outlet portion provided inside an opening formed at the upper end to supply electrolyte cleaning liquid, and the supplied electrolytic cleaning liquid at the bottom in order to discharge,
A supply means for supplying the electrolytic cleaning liquid to the cleaning tank, and
An anode body and a cathode body, which are arranged side by side in the vertical direction in the washing tank and are arranged so as to apply a voltage between them, are provided.
The anode body and the cathode body arranged at least below are provided with a distribution structure for circulating the electrolytic cleaning liquid in the vertical direction.
The anode body and the cathode body arranged on the lower side are arranged on the discharge port side in the cleaning tank in the vertical direction in a state where the object to be cleaned is placed.
Electrolytic cleaning equipment. A spare tank for temporarily storing the electrolytic cleaning liquid discharged from the discharge port of the cleaning tank is provided.
The spare tank has a tubular wall portion that surrounds the cleaning tank and an outer bottom portion that is arranged at a position that is separated downward from the bottom portion of the cleaning tank.
The electrolytic cleaning device according to claim 1. The anode body is arranged above the cathode body.
The electrolytic cleaning device according to claim 1 or 2. The bottom portion includes a tapered portion formed so as to extend outward from the discharge port portion and to be inclined downward toward the discharge port portion side.
The electrolytic cleaning apparatus according to any one of claims 1 to 3.

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