JP2002086080A - In-liquid cleaning apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an in-liquid cleaning apparatus which can curtail a total cleaning time. SOLUTION: In the apparatus, an ejection nozzle 11 for ejecting a cleaning liquid in a cleaning tank 2, a conveyance chamber 3 separated from the cleaning tank 2 by a partition wall 5 having an opening part 7 in a predetermined area, conveyance means (33, 37, 39, 41, and 43) for conveying objects W to be cleaned between the conveyance chamber 3 and the cleaning tank 2, a discharge means 53 for discharging the cleaning liquid in the cleaning tank 2, a filtering means 55 for filtering the cleaning liquid discharged and a treatment tank 57 for storing the filtered cleaning liquid are provided, the cleaning means (33, 37, 39, 41, and 43) have holding parts (35, 36, 37, and 39), the objects W are conveyed to the cleaning tank 2 by rotating the holding parts (35, 36, 37, and 39) vertically from initial positions 42b, and the lid parts 39 of the holding parts close the opening part 7 with the object W carried in the cleaning tank 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-liquid cleaning apparatus for cleaning an object to be cleaned in a liquid, and more particularly to a means for conveying the object to be cleaned.

[0002]

2. Description of the Related Art As a cleaning apparatus for cleaning an object to be cleaned such as a machined part in a liquid, the object to be cleaned is transported from a loading chamber to a cleaning tank along a transport line.
What is partitioned by a movable wall that can move in a sliding manner is generally known. In such a submerged cleaning apparatus, the movable wall is slid, and the object to be cleaned set in the loading room is loaded into the cleaning tank along the transport line.
Then, the object to be cleaned is installed at a predetermined position in the cleaning tank,
Thereafter, the movable wall is slid to seal the inside of the washing tank and the washing process is started.

[0003] A plurality of spray nozzles are provided inside the cleaning tank, and cleaning water is sprayed from these nozzles to wash the object to be cleaned. After the completion of the washing treatment, the washing water is drained, reused by a filtration device, and stored in a water treatment tank in order to reuse the washing water. At this time, while it is necessary to reduce the drainage time of the cleaning tank in one cycle of the cleaning processing, it is necessary to reduce the processing flow rate of the filtration device. Therefore, the cleaning water in the cleaning tank is disposed below the cleaning tank. The water is drained to the drain tank in a short time, and the washing water in the drain tank is sent to the filtration device by the drain pump during the next washing operation.

[0004]

In such a conventional submerged cleaning apparatus, the carrying-in chamber and the cleaning tank are separated by a sliding movable wall, so that the operation of carrying the object to be cleaned into the cleaning tank is performed. In addition, the operation of unloading the object to be cleaned from the cleaning tank and the sealing operation of the cleaning tank are independent, and there is a problem that it takes time to transport the object to be cleaned and perform the entire process of cleaning.

[0005] Further, a sealing member is generally provided between the cleaning tank and the movable wall in order to seal the cleaning tank. However, since the movable wall is of a sliding type, the sealing surface (the cleaning tank wall surface) is provided. ), The seal member needs to be translated.
For this reason, the seal member is likely to be damaged. In particular, in a submerged cleaning apparatus, it is necessary to increase the hermeticity of the cleaning tank. However, if the sealing member is easily damaged, the cleaning liquid may leak from the cleaning tank, which is a fatal defect.

Furthermore, a mechanism for transporting the cleaning object and a mechanism for sliding the movable wall are required, and there is a problem that the apparatus becomes excessively large. In particular, since a large amount of cleaning liquid is sprayed and washed by a plurality of nozzles inside the cleaning tank, equipment such as the cleaning tank and the water treatment tank becomes large. In addition, the conventional submerged washing apparatus is provided with a drain tank and a drain pump, but since the washing water is used only for a short time after being discharged from the washing tank and then sent to the filtration device, excess equipment is used. You might also say that.

[0007] The present invention has been made in view of the above problems, and it is a main object of the present invention to provide a submerged cleaning apparatus capable of reducing the overall processing time. Another object of the present invention is to provide a submerged cleaning device capable of preventing deterioration of a seal member and preventing leakage of a cleaning liquid from a cleaning tank. Another object of the present invention is to provide a submerged cleaning apparatus that can simplify the apparatus. Another object of the present invention is to provide a submerged cleaning apparatus capable of reducing the processing flow rate of a cleaning liquid.

[0008]

Means for Solving the Problems In order to achieve the above object, the invention according to claim 1 is directed to a cleaning nozzle for spraying a cleaning liquid in a cleaning tank and a partition having an opening in a predetermined region. A transfer chamber partitioned from a tank, a transfer means for transferring the object to be cleaned between the transfer chamber and the cleaning tank, a discharge means for discharging the cleaning liquid in the cleaning tank, and filtering the discharged cleaning liquid. A transport unit that includes a filtering unit and a processing tank that stores the filtered cleaning liquid, the transporting unit includes a holding unit that holds an object to be cleaned, and rotates the holding unit in a vertical direction from an initial position. The cleaning object is conveyed to the cleaning tank, and the holding unit closes the partition wall opening in a state where the cleaning object is carried into the cleaning tank. It is related to.

The initial position in the invention according to the first aspect is a position where the object to be cleaned is set in the holding section in the transfer chamber, and it does not matter whether the object is horizontal depending on the installation state of the object to be cleaned. In the present invention, the transporting unit transports the cleaning target to the cleaning tank by rotating the holding unit that holds the cleaning target from the initial position in the vertical direction, and the cleaning target is carried into the cleaning tank. As a result, the holding portion closes the partition opening, so that the operation of transporting the object to be cleaned to the cleaning tank and the sealing operation of the partition opening are performed integrally. For this reason, as compared with the conventional submerged washing apparatus in which the transport operation and the sealing operation are separately independent, the overall processing time of transporting, sealing, cleaning processing, and unloading of the object to be cleaned is reduced.

Further, since the opening of the partition is closed by rotating the holding portion by the transport means, a mechanism for sealing the opening of the partition is not required, and the apparatus can be simplified. In addition, the manufacturing cost of the apparatus can be reduced.

Furthermore, since the holding portion closes the partition wall opening by rotating, even if a seal member is provided, the seal member moves from the direction perpendicular to the opening, so that damage to the seal member is prevented. Thus, it is possible to prevent the cleaning liquid from leaking from the cleaning tank.

The conveying means in the present invention may be any means for conveying the object to be cleaned to the cleaning tank by rotating the holding portion from the initial position in the vertical direction, and has the same angle as the inclined state of the partition opening. It may be configured so that the holding unit is transported until the condition is reached. Further, if a lock mechanism for maintaining a state in which the holding unit closes the partition wall opening by the transport unit is further provided, the hermeticity in the cleaning tank can be further ensured.

The partition may have an opening through which the object to be cleaned is inserted. For example, the partition may be opened above the insertion portion of the object to be cleaned. In this case, a closing member for closing the upper opening may be provided.

According to a second aspect of the present invention, in the submerged washing apparatus according to the first aspect, a seal for sealing a gap between the partition and the holding portion with the holding portion closing the opening of the partition. The device further includes a member, and a buffer member that buffers a pressing force from the holding portion against the seal member.

According to the second aspect of the present invention, since the pressing force of the holding member against the seal member is buffered by the buffer member, it is possible to further prevent damage to the seal member and prevent leakage of the cleaning liquid. It becomes possible.

The cushioning member in the present invention is only required to buffer the pressing force of the holding member against the seal member, and may be provided separately from the seal member or may be provided integrally with the seal member. As such a buffering member, for example, there is a configuration in which a hollow portion is provided in a sealing member, air is injected into the hollow portion, and the sealing member itself buffers the pressing force from the holding portion by the internal air pressure.

According to a third aspect of the present invention, in the submerged cleaning apparatus according to the first or second aspect, first positioning means for moving the spray nozzle to a desired position inside the cleaning tank, and cleaning inside the cleaning tank. And a second positioning means for rotating the object to a desired position, wherein the filtering means is disposed below the cleaning tank and above the processing tank.

In the invention according to claim 3, the injection nozzle is moved to a desired position in the cleaning tank and positioned by the first positioning means, and the object to be cleaned is rotated by the second positioning means to obtain the desired position. Since the positioning can be performed at the position, the distance and the angle between the cleaning target and the nozzle can be optimally set according to various types of cleaning target. For this reason, without using many injection nozzles,
The object to be cleaned can be effectively cleaned with a small amount of cleaning liquid by using a single or a few nozzles of a few.

Further, since a small amount of the cleaning liquid is required, the carry-in height of the object to be cleaned in the cleaning tank can be set low.
It is possible for an operator to easily attach and detach the object to be cleaned. Further, since a small amount of the cleaning liquid is required, the size of the cleaning tank and the processing tank can be reduced, and the apparatus can be made more compact.

Further, since the cleaning flow rate is reduced, the level of the cleaning liquid discharged from the cleaning tank in the processing tank can be lowered. Here, in the present invention, since the filtering means is disposed below the cleaning tank and above the processing tank, the cleaning liquid discharged from the cleaning tank due to a head difference from the cleaning tank is introduced into the filtering means to be filtered. In addition, the washing liquid after filtration can be stored in the processing tank. For this reason, a drain tank that temporarily stores the cleaning liquid discharged from the cleaning tank,
A device such as a drain pump for sending the cleaning liquid from the drain tank to the filtration means becomes unnecessary, and the device can be further simplified as compared with a conventional submerged washing device requiring such a drain tank and a drain pump. .

The first positioning means in the present invention is not limited as long as it can move the injection nozzle to a desired position in the cleaning tank. More specifically, the first positioning means moves the nozzle three-dimensionally and rotates the injection nozzle. A drive mechanism such as a four-axis robot (rotated around the axis of the cleaning liquid supply pipe) may be provided. When the driving mechanism enables the injection nozzle to rotate, the nozzle may be rotated during the nozzle positioning operation, or may be rotated during the cleaning process.

The second positioning means in the present invention may be any means for rotating the object to be cleaned inside the cleaning tank, and may rotate or hold the object to be cleaned for each holding unit or for a part of the holding unit. It is optional to rotate only the object to be cleaned held by the section. In addition, the second positioning means rotates the object to be cleaned inside the cleaning tank. For example, the driving motor is driven in a state where the object to be cleaned is transported into the cleaning tank, that is, in a state where the holding unit closes the opening of the partition wall. A gear mechanism may be provided so that the output shaft and the holding unit can be engaged with each other.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side perspective view showing the entire configuration of the underwater cleaning device according to the present embodiment.
FIG. 1A shows a state where the object to be cleaned is set in the transfer chamber, and FIG. 1B shows a state where the object to be cleaned is transferred to the cleaning tank. As shown in FIGS. 1A and 1B, the underwater cleaning apparatus according to the present embodiment includes a transfer chamber 3 for installing a cleaning object W (hereinafter, referred to as a “work”).
, A cleaning chamber 1 having a cleaning tank 2 for performing a cleaning process on the work W, and a filtering device 55 for filtering the cleaning water after the completion of the cleaning process.
And a water treatment tank 57 for storing the filtered washing water. In the underwater cleaning apparatus of the present embodiment, the cleaning chamber 1 and the transfer chamber 3 are arranged in parallel.

FIG. 2A is a perspective plan view showing the inside of the cleaning chamber 1 and the transfer chamber 3 in a state where the work W is installed in the transfer chamber 3, and FIG. FIG. 4 is a perspective plan view showing the inside of the cleaning chamber 1 and the transfer chamber 3 when the transfer is performed.

As shown in FIGS. 1A and 1B, the transfer chamber 3 is separated from the cleaning chamber 1 by a fixed wall 5 and a movable wall 9 extending in the vertical direction. The fixed wall 5 forms a part of the side wall of the cleaning tank 2, and has an opening 7 substantially at the center. The work W is carried in and out between the transfer chamber 3 and the cleaning tank 2 through the opening 7, and the fixed wall 5 constitutes a partition of the present invention. The movable wall 9 can be raised and lowered above the side wall (fixed wall 5) of the washing tank 2 by the operation of the movable wall moving cylinder 10. The movable wall 9 is at an upper position during the transfer of the work, but is lowered during the cleaning of the work W, so that the cleaning chamber 1 and the transfer chamber 3 are completely separated by the fixed wall 5 and the movable wall 9, and during the cleaning process. The cleaning water is prevented from scattering into the transfer chamber 3.

In the transfer chamber 3, as shown in FIG.
A flat turning table 37 is arranged in a horizontal state, and a jig pallet 33 is mounted on the turning table 37. The jig pallet 33 includes a clamp portion 35 for attaching and holding the work W, and a support member 36 for rotatably supporting the clamp portion 35 at both ends. A driving roller 4 for rotating the clamp 35 holding the work W is provided on a side surface of the support member 36.
9 and a notch 51 for restricting the rotation. The notch 51 penetrates the support member 36 and is fitted in the hole of the clamp portion 35. In this state, the clamp portion 35 cannot rotate with respect to the support member 36.
By pulling out the notch 51 from the hole, the clamp 35 can rotate with respect to the support member 36. When the jig pallet 33 is in the transfer chamber 3, the notch 51 is fitted in the clamp hole and cannot rotate.

A cover 39 having a larger area than the opening 7 is mounted on the lower surface of the swivel table 37 to cover the fixed wall opening 7.
Is installed. The turning table 37 is connected to the output shaft of a turning motor 43 by turning arms 41 at both ends.

Here, the jig pallet 33 (support member 3)
6, clamp part 35), turning table 37 and lid part 39
Constitutes the holding unit of the present invention, and the jig pallet 33, the turning table 37, the lid 39, the turning motor 43, and the turning arm 41 constitute the transfer means of the present invention.

By driving the turning motor 43,
The turning arm 41 turns (rotates) at an angle of 90 ° from the return end 42b to the turning end 42a. For this reason, the jig pallet 33 connected to the output shaft of the turning motor 43 via the turning arm 41 also moves together with the turning table 37 and the lid 39 between the horizontal position (initial position) and the vertical position by the arrow A.
It is rotatable at an angle of 90 ° in the directions B and B. That is, by rotating the jig pallet 33 in the direction A from the horizontal position (initial position), the work W is carried into the cleaning tank through the fixed wall opening 7. Swivel end 42
At the position a, the swivel table 37 and the cover 39 are in a vertical state, but since the cover 39 has a larger area than the fixed wall opening 7, the fixed wall opening 7 is closed by the cover 39. It comes off.

On the other hand, when the jig pallet 33 is rotated in the direction B from the state where the revolving arm 41 is at the revolving end 42a (the state in which the work W is carried into the cleaning tank), the work W is removed from the inside of the cleaning tank. The transfer chamber 3 passes through the fixed wall opening 7
When the turning arm 41 rotates to the return end 42b, the work W, the jig pallet 33, the turning table 37
The lid 39 returns to the initial position.

A swivel end stopper 31 for stopping the swivel of the swivel table 37 accompanying the loading of the work W into the wash tank 2 at the swivel end 42 a of the swivel arm 41 is provided on the wash tank side of the periphery of the opening of the fixed wall 5. Is provided. The work W rotates from the transfer chamber 3 and passes through the partition wall opening 7 and is carried into the cleaning tank. When the lid 39 closes the partition wall opening 7, the table W is turned by the table turning end stopper 31. The rotation is stopped. For this reason, the pressing force from the turning table 37 pressed by the partition wall is reduced, and the damage of the seal member 40 is prevented.

At the bottom of the transfer chamber 3, there is provided a table return end stopper 47 for stopping the turn of the turn table 37 at the return end 42b when the work W is carried out to the transfer chamber 3. The work W rotates from the cleaning tank 2 and is carried out into the transfer chamber. When the turning table 37 returns to the initial position, the table return end stopper 4 is moved.
7, the rotation is stopped.

In the cleaning device of the present embodiment, the sealing member 40
As for using an inflatable seal. FIG.
Sealing member 4 with lid 39 closing fixed wall opening 7
0 is an enlarged sectional view of FIG. As shown in FIG. 3, the inflat seal has a hollow portion, and has a configuration in which air is injected into the hollow portion. Therefore, the pressing force from the lid 39 is buffered by the internal pressure of the injected air, and damage to the inflat seal is prevented. In addition, although the inflatable seal is adopted in the cleaning device of the present embodiment, the present invention is not limited to this, and the lid 39 and the fixed wall 5 are not limited thereto.
Other sealing member 40 as long as it seals
9 may be attached.

The cleaning chamber 1 includes a cleaning tank 2 for impregnating the cleaning water inside the work W, a water supply tank 59 for storing the cleaning water to be supplied to the cleaning tank 2, and a cleaning water for the work W. A horn nozzle 11 for injecting air, an air blow nozzle 13 for blowing air to the work W, and a four-axis robot 17 for moving the horn nozzle 11 and the air blow nozzle 13 to desired positions for positioning are provided.

The horn nozzle 11 injects washing water supplied from the water treatment tank 57 by a water supply pump as a water jet stream, and constitutes the injection nozzle of the present invention. The air blow nozzle 13 blows air supplied from an air supply source (not shown) to the work W. Horn nozzle 11 and air blow nozzle 1
3 are attached to the lower end of the lance pipe 15,
A cleaning water supply pipe (not shown) serving as a cleaning water passage to the horn nozzle 11 and an air blow nozzle 1 are provided inside the lance pipe.
An air supply pipe (not shown) that serves as an air passage to the air passage 3 is provided.

Horn nozzle 11 and air blow nozzle 13
Is three-dimensionally movable (in each of the X-axis, Y-axis, and Z-axis directions) by the four-axis robot 17 constituting the first positioning means of the present invention, and rotates around the axis of the lance pipe 15 ( (Rotation) is possible. For this reason, by driving the four-axis robot 17, it is possible to position the nozzles and the work W such that the distance between the nozzles and the work W becomes an optimum distance in accordance with various kinds of works W.

A notch releasing mechanism for the jig pallet 33 conveyed into the cleaning tank is provided on the inner wall of the bottom surface of the cleaning tank 2. FIG. 4 shows a configuration of the notch release mechanism, and is an enlarged view taken along line XX in FIG. 2B. The notch releasing mechanism includes a notch releasing plate 29 fitted to the notch 51 of the jig pallet 33 and a link mechanism 27 for fitting the notch releasing plate 29 to the notch 51.
And a notch cylinder 25. A work rotating motor 21 for rotating the clamp unit 35 together with the work W, a jig pallet 33
A driving plate 19 is provided which meshes with a driving roller 49 provided on the supporting member 36 of FIG. Here, the work rotating motor 21, the driving plate 19, and the driving roller 49 constitute the second positioning means of the present invention.

When the work W is carried into the cleaning tank 2 and the revolving arm 41 reaches the revolving end 42a, the driving roller 49 and the driving plate 19 are fitted, and the notch 51 and the notch releasing plate 29 are fitted. I do. In this state, the notch cylinder 25 is driven, the notch 51 is pulled in the axial direction of the notch 51, and the notch 51 is pulled out from the hole of the clamp portion 35, so that the clamp portion 35 can rotate together with the work W inside the cleaning tank. . When the work rotating motor 21 is driven in this state, the driving force is transmitted to the rotating shaft of the clamp unit 35 via the driving plate 19 and the driving roller 49, and the clamp unit 35 is rotated together with the work W around the rotating shaft. It is designed to rotate.

A filtration device 55 is provided below the washing tank 2, and a water treatment tank 57 is further provided below the filtration device 55. The filtration device 55 filters the washing water to filter the water treatment tank 5.
7, which constitutes the filtering means of the present invention. The water treatment tank 57 stores the filtered washing water, and constitutes the treatment tank of the present invention. The washing water stored in the water treatment tank 57 is sucked by the water supply pump and supplied to the horn nozzle 11 at the time of the next cycle of washing.

Next, a description will be given of a method of cleaning the work W using the underwater cleaning apparatus of the present embodiment configured as described above. In the cleaning device in the initial state, the swivel table 37 is at a horizontal position (initial position) in the transfer chamber, and the horn nozzle 11 and the air blow nozzle 13 are at positions above the cleaning tank 2. Further, the movable wall 9 is in the raised position, and therefore the
And the transfer chamber 3 communicate with each other at the top.

First, the work W to be cleaned is set on the clamp 35 of the jig pallet 33 in the transfer chamber.
The work W is clamped automatically or manually. At this time, the notch 51 is fitted from the support member 36 into the hole on the side surface of the clamp portion, so that the clamp portion 35 is
Cannot rotate.

Next, the turning motor 43 is driven to turn the jig pallet 33, the turning table 37 and the lid 39 in the direction A. Accordingly, the work W also rotates, and is carried into the cleaning tank through the fixed wall opening 7. When the turning arm reaches the turning end 42a, the turning is stopped by the turning end stopper 31. At this time, the lid 39 is in the vertical state, the fixed wall opening 7 is closed, and the gap between the fixed wall 5 and the lid 39 is sealed by the inflate seal of the lid 39. When the work W is carried into the cleaning tank 2, the movable wall 9 is lowered, and the cleaning chamber 1 and the transfer chamber 3 are completely partitioned by the fixed wall 5 and the movable wall 9.

Next, the positioning of the horn nozzle 11 and the air blow nozzle 13 and the positioning of the work W are performed. The positioning of the horn nozzle 11 and the air blow nozzle 13 is such that the four-axis robot 17 is driven to move the two nozzles and rotate (rotate) around the axis of the lance pipe so that the distance between the workpiece W and each nozzle is optimized. With 4-axis robot 17
Stop driving.

The positioning of the work W is performed as follows. First, the notch cylinder 25 is operated, the notch release plate 29 fitted to the notch 51 of the jig pallet 33 is pulled in the axial direction, and the notch 51 is released from the clamp portion 35. As a result, the work W can be rotated together with the clamp 35. Then, the work rotation motor 21 is driven to rotate the work W, and the drive of the motor is stopped at a desired angular position.

As described above, in the underwater cleaning apparatus according to the present embodiment, the horn nozzle 11 and the air blow nozzle 13 are positioned by the four-axis robot 17, and the work rotation motor 21, the drive plate 19, and the drive roller 49 are used for the work. Since the W can be positioned, the distance and angle between the work W and each nozzle can be optimally set according to various sizes and various kinds of works W. Thus, the work W can be effectively cleaned.

In parallel with the lowering operation of the movable wall 9 and the positioning operation of the nozzle and the work W, the water supply tank 59 is provided.
Supply washing water into the washing tank. When the cleaning tank 2 is filled with the cleaning water, the four-axis robot 17 is driven to inject cleaning water from the horn nozzle 11 to the work W while rotating the horn nozzle 11 and the air blow nozzle 13 by themselves.

After such underwater cleaning has been performed for a predetermined time, the drain valve 53 is opened. Here, as described above, only a small amount of cleaning water is used in the cleaning tank, so that the level of the cleaning liquid discharged from the cleaning tank 2 in the processing tank is low. In the cleaning device of the present embodiment, since the filtration device 55 is disposed below the cleaning tank 2 and is disposed above the water treatment tank 57, the level of the cleaning water in the water treatment is determined by the drainage of the cleaning tank 2. The cleaning liquid discharged from the cleaning tank 2 due to a drop from the cleaning tank 2 does not become higher than the valve 53 and is discharged to the filtering device 55 at a stretch. For this reason,
A drain tank for temporarily storing the cleaning liquid discharged from the cleaning tank 2 and a drain pump for sending the cleaning liquid from the drain tank to the filtration device 55 are not required. The discharged washing water is filtered by a filtration device 55 to remove impurities,
Drained to the water treatment tank 57.

When all the washing water in the washing tank 2 is drained, the washing water is sprayed from the horn nozzle 11 while the horn nozzle 11 and the air blow nozzle 13 are rotated again by the four-axis robot 17 to perform the air washing. After performing the aerial cleaning for a certain period of time, the injection of the cleaning water from the horn nozzle 11 is stopped, and the air is blown from the air blow nozzle 13 to the work W to perform the air blowing for a predetermined period of time.

When the air blow is completed, the notch cylinder 25 is operated to fit the notch 51 into the clamp hole, thereby making the work W unrotatable. Then, the turning motor 43 is driven to turn the jig pallet 33, the turning table 37, and the lid 39 in the B direction. This allows
The work W is carried out of the cleaning tank 2 to the transfer chamber 3 through the fixed wall opening 7. When the turning arm reaches its return end 42b, the rotation is stopped by the return end stopper 47, and the work W, the jig pallet 33, the turning table 37, and the lid 39 return to the initial positions. This completes one cycle of the cleaning process.

As described above, in the underwater cleaning apparatus according to the present embodiment, the work W is transferred to the cleaning tank 2 by rotating the jig pallet 33 from the initial position in the vertical direction by the rotation motor 43 and the rotation arm 41. Then, since the cover 39 closes the fixed wall opening 7 in a state where the work W is carried into the cleaning tank 2, the operation of transporting the work W to the cleaning tank 2 and the sealing operation of the cleaning tank 2 are integrally performed. As a result, the entire processing time such as the transfer of the work W, the sealing of the cleaning tank 2, the work cleaning processing, and the work unloading is reduced.

The turning motor 43 and the turning arm 41
By rotating the jig pallet 33 by the transport means, the fixed wall opening 7 is sealed, so that a separate sealing mechanism is not required, and the cleaning device can be simplified.

In the underwater cleaning apparatus of this embodiment, the work is transported into the cleaning tank by the turning motor. However, the work is rotated by the toggle clamp method using an air cylinder as a drive mechanism to clean the work. You may comprise so that it may be conveyed inside a tank.

[0053]

As described above, according to the first and second aspects of the present invention, the operation of transporting the object to be cleaned to the cleaning tank and the operation of sealing the opening of the partition wall are performed integrally. This has the effect of shortening the overall processing time for transporting, sealing, washing, unloading, and the like. Further, a mechanism for sealing the opening of the partition wall is not required, which simplifies the device, and thus has the effect of reducing the manufacturing cost of the device. Furthermore, even when the seal member is provided, there is an effect that damage to the seal member can be prevented and leakage of the cleaning liquid from the cleaning tank can be prevented.

According to the third aspect of the present invention, the distance and angle between the object to be cleaned and the nozzle can be set optimally in accordance with various types of objects to be cleaned, and the object to be cleaned can be set with a small amount of cleaning liquid. It has the effect of being able to be effectively cleaned. Also,
Since only a small amount of the cleaning liquid is required, the carry-in height of the object to be cleaned in the cleaning tank can be set to be low, so that there is an effect that the worker can easily manually attach and detach the object to be cleaned. Further, since a small amount of the cleaning liquid is required, the size of the cleaning tank and the processing tank can be designed to be compact, and the apparatus can be downsized. Further, since the cleaning flow rate is reduced, the water level of the cleaning liquid discharged from the cleaning tank in the processing tank can be lowered, and the cleaning liquid discharged from the cleaning tank due to a head difference from the cleaning tank can be introduced into the filtering means. For this reason, a device such as a drainage tank and a drainage pump is not required, and there is an effect that the device can be further simplified.

[Brief description of the drawings]

FIG. 1 is a side perspective view showing the overall configuration of an underwater cleaning device according to the present embodiment. FIG. 1A is a configuration diagram illustrating a state where a work is installed in a transfer chamber, and FIG. 1B is a configuration diagram illustrating a state where the work is carried into a cleaning tank.

FIG. 2 is a plan perspective view showing a configuration of a cleaning tank and a transfer chamber in the underwater cleaning apparatus according to the present embodiment. FIG. 2 (a)
Is a configuration diagram of a state where the work is installed in the transfer room,
FIG. 2B is a configuration diagram in a state where the work is carried into the cleaning tank.

FIG. 3 is an enlarged cross-sectional view of the seal member in a state where a lid used in the present embodiment closes a fixed wall opening.

FIG. 4 is an enlarged view of the notch release mechanism used in the present embodiment taken along line XX of FIG.

[Explanation of symbols]

 1: Cleaning room 2: Cleaning tank 3: Transfer chamber 5: Fixed wall 7: Opening 9: Movable wall 10: Movable wall moving cylinder 11: Horn nozzle 13: Air blow nozzle 15: Lance pipe 17: 4-axis robot 19: Drive plate 20: Resolver 21: Work rotation motor 23: Work rotation drive bearing 25: Notch cylinder 27: Link mechanism 29: Notch release plate 31: Stopper for table turning end 33: Jig pallet 35: Clamp section 36 : Support member 37: Swivel table 39: Lid 40: Seal member (inflatable seal) 41: Swivel arm 42 a: Arm swivel end 42 b: Arm return end 43: Swivel motor 44: Table swivel shaft 45: Table swivel bearing 47 : Table return end stopper 49: Driving roller 51: Notch 53: Drainage bath Lube (discharge means) 55: Filtration device (filter) 57: Water treatment tank 59: Water supply tank W: Work (object to be cleaned)

Claims (3)

[Claims] An injection nozzle for injecting a cleaning liquid in a cleaning tank, a transfer chamber separated from the cleaning tank by a partition having an opening in a predetermined area, a transfer chamber and a cleaning tank for transferring the object to be cleaned. A transport unit that transports the cleaning liquid between the cleaning tank, a discharging unit that discharges the cleaning liquid in the cleaning tank, a filtering unit that filters the discharged cleaning liquid, and a processing tank that stores the filtered cleaning liquid, The transport unit includes a holding unit that holds the object to be cleaned,
The object to be cleaned is transported to the cleaning tank by rotating the holding unit from the initial position in the vertical direction.The holding unit opens the partition wall in a state where the object to be cleaned is carried into the cleaning tank. A submerged washing device, which closes a part. 2. A sealing member for sealing a gap between the partition and the holding portion in a state where the holding portion closes the partition opening, and a pressing force from the holding portion against the sealing member is buffered. The underwater washing apparatus according to claim 1, further comprising a buffer member. 3. A cleaning apparatus further comprising: first positioning means for moving the injection nozzle to a desired position inside the cleaning tank; and second positioning means for rotating the object to be cleaned to a desired position inside the cleaning tank. 2. The filter according to claim 1, wherein the filter is disposed below the cleaning tank and above the processing tank. 3.
Or the submerged washing device according to 2.