JPH0571316B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a cleaning device for cleaning objects to be cleaned such as mechanical parts and electronic parts, and the present invention relates to a cleaning device for cleaning objects to be cleaned, such as mechanical parts and electronic parts. The purpose is to do.

BACKGROUND ART Conventionally, in a cleaning device, in order to prevent the solvent gas in the cleaning device from flowing out and diffusing to the outside from the inlet and outlet of the object to be cleaned, an inlet and an inlet are provided as in the invention described in JP-A-49-122159. It is known that a shielding body such as a shutter is provided on the top.

However, conventional cleaning devices of this type have the disadvantage that when the shield is opened to enter and exit the object to be cleaned, the cleaning chamber is communicated with the outside, and the solvent gas flows out and diffuses outside from the entrance and exit of the object to be cleaned. It had

In addition, in order to eliminate this drawback, JP-A-64-
As in the invention described in Japanese Patent No. 85183, there is a device in which a lid is provided between an introduction chamber for the object to be cleaned and between the introduction chamber and the cleaning chamber. Even in this method, the solvent gas flows into the introduction chamber or the extraction chamber during the process of moving the object to be cleaned from the introduction chamber to the cleaning chamber or from the cleaning chamber to the extraction chamber. Therefore, a vacuum pump is connected to the outlet chamber and the introduction chamber to suck and remove the solvent gas.

However, the above invention not only has the drawback of requiring a complicated mechanism such as a vacuum pump, resulting in an expensive and complicated device to operate, but also has the drawback of requiring a processing step for the solvent gas sucked by the vacuum pump. are doing.

Furthermore, there is an invention disclosed in Japanese Patent Application Laid-open No. 186978/1983, in which a solvent gas recovery device is connected to the cleaning chamber so that no solvent gas is present in the cleaning chamber when the object to be cleaned is taken out or taken out.

However, this invention also requires a complicated mechanism such as a solvent gas recovery device, which not only has the disadvantage of being an expensive and complicated device to operate, but also has the disadvantage of requiring a solvent gas processing step. . Furthermore, although this invention can process solvent gas, it cannot be used in an immersion cleaning device that cleans objects to be cleaned with a solvent solution, and has the drawback of severely restricting cleaning methods. are doing.

In addition, the invention described in Japanese Patent Application Laid-open No. 3-58789 includes:
It has been proposed that an introduction/exit chamber for objects to be cleaned, which is provided in the upper part of the cleaning chamber, and the cleaning chamber are closed with a lid, and the lid can be pushed down by a vertically movable table.

However, in this invention, while the lid body is opened using the vertical moving table, the introduction/exit chamber and the cleaning chamber are in communication with each other, and when the existing object to be cleaned is taken in and out, the solvent gas flows out to the outside air. It has its drawbacks.

In addition, the patent application No. 1-1, which was unpublished at the time of filing this application,
No. 91140, Japanese Patent Application No. 1-94459 (Japanese Unexamined Patent Publication No. 2-273587)
(No.), Japanese Patent Application No. 1-144410 (Japanese Patent Application No. 3-8483)
has proposed a system in which an introduction/exit chamber for objects to be cleaned provided at the upper part of the cleaning chamber and the cleaning chamber are closed off by a shield when the vertically movable table is raised.

However, this invention requires the introduction and exit of the object to be cleaned;
The cleaning chamber is connected only in the vertical direction, and cannot be applied to a cleaning device that connects the inlet/outlet chamber and the cleaning chamber in a two-dimensional manner.

Problems to be Solved by the Invention The present invention attempts to solve the above-mentioned problems, and it is an object of the present invention to cut off communication between the cleaning chamber and the outside and prevent solvent gas from entering and exiting the cleaning device. A simple mechanism is used to prevent the water from flowing out and diffusing outside through the entrance and exit of the object to be cleaned.

Means for Solving the Problems In order to solve the problems as described above, the present invention has an introduction chamber into which the objects to be cleaned are introduced, a cleaning chamber in which the cleaning work is performed on the objects to be cleaned, and a lead-out chamber through which the objects to be cleaned are taken out to the outside. A chamber for moving objects to be cleaned is formed through a communication port in the upper part of the introduction chamber, cleaning chamber, and outlet chamber, and a chamber for moving objects to be cleaned is formed in the upper part of the introduction chamber, washing chamber, and outlet chamber, and a chamber for moving objects to be cleaned is formed adjacent to the chamber in the horizontal direction. A horizontal movement mechanism is formed to move the object to be cleaned to the top of each chamber, and a vertical movement table is formed in each chamber to place the object to be cleaned on the upper surface and move it from each chamber to the transfer chamber. Each of the moving tables has a support that protrudes upward, and the cover that covers and seals the communication port between the moving chamber and each chamber can be pushed up and opened using the support. In the process of forming a shield capable of sealing the communication port with an object placed in the transfer chamber, and using the support of the vertical moving table to open the communication port of any of the introduction chamber, washing chamber, and outlet chamber. The lids of the other communication ports are in a closed state, and the introduction chamber and the outlet chamber are always blocked from communicating with the cleaning chamber by lids or shields.

Function Since the present invention is configured as described above, in order to clean the object to be cleaned, the object to be cleaned is first introduced into the introduction chamber and placed on the upper surface of the vertically movable table.

When the vertically movable table is raised, the support body projecting upward from the vertically movable table pushes up and opens the lid that covers and seals the communication port between the transfer chamber and the introduction chamber. Then, the vertically movable table moves into the moving chamber and positions the object to be cleaned within the moving chamber.

When the object to be cleaned is placed in the transfer chamber, the communication port of the introduction chamber is covered and sealed by the shield of the vertical movement table, so communication between the transfer chamber and the introduction chamber is cut off. be able to.

Next, when the vertically movable table inside the cleaning chamber is raised, the support that protrudes upward pushes up and opens the lid that covers and seals the communication port between the moving chamber and the cleaning chamber, and at the same time lifts the vertically movable table inside the cleaning chamber. Located in the moving room. At the same time, the communication port of the cleaning chamber is covered and sealed by the shield of the vertically movable table, so that communication between the movable chamber and the cleaning chamber can be cut off.

Next, the object to be cleaned is moved toward the cleaning chamber adjacent to the introduction chamber by the horizontal movement mechanism, and the vertically moving table on the introduction chamber side is lowered from the transfer chamber to the introduction chamber. Due to this lowering, the lid which had been pushed up by the support is lowered together with the support, and the communication port between the transfer chamber and the introduction chamber is again covered and sealed.

Then, the object to be cleaned is moved toward the cleaning chamber by the horizontal movement mechanism and placed on the upper surface of the vertically movable table on the side of the cleaning chamber.

Next, the vertically movable table on which the object to be cleaned is placed is lowered and inserted into the cleaning chamber. Due to this lowering, the lid that had been pushed up by the support is lowered together with the support.
The communication port between the transfer chamber and the cleaning chamber will be covered and sealed again. Then, the object to be cleaned is subjected to liquid cleaning, steam cleaning, or both.

After this cleaning is completed, when the vertically movable table inside the cleaning chamber is raised, the support that protrudes upward pushes up and opens the lid that covers and seals the communication port between the transfer chamber and the cleaning chamber, so that the vertically movable table rises into the moving chamber and stores the object to be cleaned in the moving chamber.

In this state, the communication port between the inlet chamber and the outlet chamber is closed by the lid, and the solvent gas that has flowed into the transfer chamber due to the communication port in the cleaning chamber being opened for a short time will flow out to the outside. Never. Moreover, the communication port of the cleaning chamber is immediately closed by the shield.

Next, the object to be cleaned is moved by a horizontal movement mechanism in the moving chamber toward the upper part of a delivery chamber adjacent to the washing chamber, and the vertically moving table is lowered from the moving chamber into the washing chamber. As a result of this lowering, the lid, which had been pushed up by the support, descends together with the support to cover and seal the communication opening between the transfer chamber and the cleaning chamber.

Further, when the object to be cleaned is moved and the vertically movable stage of the discharge chamber is raised, the support body projecting upward pushes up and opens the lid that covers and seals the communication port between the transfer chamber and the discharge chamber. The vertically moving table is located in the moving chamber, and the object to be cleaned, which has been moved by the horizontal moving mechanism, is placed on the upper surface of the vertically moving table. Also in this mounting process, the communication port of the ejection chamber is closed by the shield to block communication between the transfer chamber and the ejection chamber.

Next, when the vertically movable table is lowered from the moving chamber to the outlet chamber, the lid, which had been pushed up by the support, descends together with the support, covering and sealing the communication opening between the moving chamber and the outlet chamber. After lowering the vertically movable table, the object to be cleaned is led out from the extraction chamber to the outside, and cleaning of the object to be cleaned is completed.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. 1 is a cleaning tank, an introduction chamber 3 into which the object to be cleaned 2 is introduced, a cleaning chamber 4 in which the object to be cleaned 2 is cleaned,
A discharge chamber 5 for discharging the object 2 to be cleaned to the outside is formed adjacent to each other in the lateral direction. In addition, communication ports 6, 7,
A moving chamber 9 for the object to be cleaned 2 is formed through the cylindrical member 8 .

In addition, on the transfer chamber 9 side of the communication ports 6, 7, and 8,
Lid bodies 11, 12, 13 having no special fixing means are installed on the communication ports 6, 7, 8 to keep the communication ports 6, 7, 8 in a sealed state.

Further, the introduction chamber 3 has an introduction port 14 for the object to be cleaned 2 opened on one side thereof, and the introduction port 14 can be sealed by a shutter 16 which is opened and closed by a cylinder 15. In addition, the introduction chamber 3 is located at the introduction port 14.
A roller conveyor 17 is formed from the cleaning tank 1 to the outside of the cleaning tank 1, making it easy to introduce the object 2 to be cleaned into the introduction chamber 3.

Further, a vertically movable table 18 on which the object to be cleaned 2 is placed is located within the introduction chamber 3. This vertically movable table 18 is connected to a vertically movable cylinder 19 installed outside the cleaning tank 1, and is connected to the introduction chamber 3 through the communication port 6.
It can be moved from the room to the moving room 9.

Further, the vertically movable table 18 moves the L-shaped support 2 up to a position higher than the height of the object 2 placed thereon.
1 is formed to protrude upward. When the vertically movable table 18 is raised, this support body 21 supports the movable chamber 9.
The lid 11 located on the side and covering and sealing the communication port 6 between the introduction chamber 3 and the transfer chamber 9 is lifted and opened.

Further, the vertically movable table 18 projects a brim-shaped shield 22 on the outer periphery, and when the lid 11 is pushed up and opened, the shield 22 is brought into close contact with the outer periphery of the lower surface of the communication port 6.
The communication port 6 can be sealed tightly.

In addition, a transfer chamber 9 located above the introduction chamber 3
A horizontal movement mechanism 23 for moving the object 2 to be cleaned from the upper part of the introduction chamber 3 to the upper part of the cleaning chamber 4 and the extraction chamber 5 is installed therein.

This horizontal movement mechanism 23 includes an air cylinder,
Although any mechanism such as a chain drive, oil cylinder, etc. can be used, the embodiment shown in the figures uses an air cylinder. This horizontal movement mechanism 23 is fixed to the upper part of a guide rail 24 that extends from the inner surface of one side of the cleaning tank 1 to the inner surface of the other side. A pressing body 25 that is slidably engaged with the guide rail 24 is connected to the horizontal movement mechanism 23 to enable horizontal movement of the object 2 by pressing.

In addition, the surface of the vertically moving table 18 and the moving chamber 9
A roller conveyor 17 is provided on the inner bottom surface of the washing machine to facilitate smooth movement of the object 2 to be cleaned by the horizontal movement mechanism 23.

Further, in the cleaning chamber 4 that communicates with the transfer chamber 9 through the communication port 7, there is a liquid cleaning tank 26 that performs liquid cleaning of the object 2 to be cleaned, and a steam generation tank 27 adjacent to this liquid cleaning tank 26. A cooling section 28 is provided above the liquid cleaning tank 26 to condense the cleaning vapor.

In addition, in the cleaning chamber 4, there is a vertically movable table 29 having the same mechanism as the vertically movable table 18 formed in the introduction chamber 3.
is formed.

Further, a discharge chamber 5 for discharging the object to be cleaned 2 is provided adjacent to the cleaning chamber 4 on the side opposite to the introduction chamber 3 side. In this derivation chamber 5, a vertically movable table 3 having the same mechanism as the vertically movable table 18 formed in the introduction chamber 3 is provided.
1 is formed.

Further, the outlet chamber 5 has an outlet 32 for the object to be cleaned 2 at a position opposite to the cleaning chamber 4 side, and the outlet 32 can be sealed by a shutter 16 which is opened and closed by a cylinder 15. Further, a roller conveyor 17 is formed in the outlet 32 portion from the outlet chamber 5 to the outside of the cleaning tank 1, so that the object to be cleaned 2 can be easily guided to the outside.

In the structure as described above, in order to wash the object 2 to be washed, first the shutter 16 is opened by the cylinder 15. And the introduction port 14
The object to be cleaned 2 is
is introduced into the introduction chamber 3 through the introduction port 14 and placed on the upper surface of the vertically movable table 18.

In this state, the communication ports 6 and 7 of the introduction chamber 3 and the cleaning chamber 4 are sealed with the lids 11 and 12, so even if the shutter 16 is opened, the solvent gas will not flow out of the cleaning tank 1. There isn't.

When the vertically moving table 18 is raised by the vertically moving cylinder 19, the L-shaped support body 21 protruding upward from the vertically moving table 18 opens the communication port 6 between the moving chamber 9 and the introduction chamber 3. The cover 11, which is covered and sealed, is pushed up to open it. The vertically movable table 18 then moves into the moving chamber 9 and positions the object 2 to be cleaned within the moving chamber 9.

In this state, the vertically movable table 18 seals the communication port 6 with the shield 22 provided on the outer periphery, and can prevent the solvent gas from flowing into the introduction chamber 3. Also,
When the object 2 to be cleaned is placed on the vertically moving table 18 in the introduction chamber 3, the communication port 7 between the cleaning chamber 4 and the moving chamber 9
is closed by a lid 12.

Next, when the vertically movable table 29 in the cleaning chamber 4 is raised, an L-shaped support 33 that projects upwardly covers and seals the communication port 6 between the moving chamber 9 and the cleaning chamber 4. is pushed up and opened, and the vertically movable table 29 in the cleaning chamber 4 is positioned within the movable chamber. At the same time, the communication port 7 of the cleaning chamber 4 is covered and sealed by the shield 34 of the vertically movable table 29, so that communication between the movable chamber 9 and the cleaning chamber 4 can be cut off.

Next, the object 2 to be cleaned is moved on the roller conveyor 17 in the direction of the cleaning chamber 4 adjacent to the introduction chamber 3 by the horizontal movement mechanism 23, and the vertical movement table 18 of the introduction chamber 3 is moved up and down. It descends from the transfer chamber 9 into the introduction chamber 3 by means of a cylinder 19 . Due to this lowering, the lid 11 that had been pushed up by the support 21 is
It descends together with the support body 21, and moves into the transfer chamber 9 and the introduction chamber 3.
The communication port 6 is covered and sealed.

Then, the object 2 to be cleaned, which has been moved on the roller conveyor 17 by the horizontal movement mechanism 23, is placed on the upper surface of the vertical movement table 29. In this state, the shield 34 provided on the outer periphery of the vertically movable table 29 is brought into close contact with the lower surface of the communication port 7, thereby sealing the communication port 7.
It is possible to prevent the solvent gas from flowing into the transfer chamber 9.

In addition, when the object 2 to be cleaned is placed on the vertical moving table 29 for the cleaning chamber 4 and inserted into the moving chamber 9, it is moved between the communication port 6 between the introduction chamber 3 and the moving chamber 9 and the outlet chamber 5. The communication port 8 with the chamber 9 has a lid body 11,
It is closed by 13.

Next, a vertically movable table 29 on which the object to be cleaned 2 is placed
is lowered and inserted into the cleaning chamber 4 by the vertical movement cylinder 19. Due to this lowering, the lid body 12 which had been pushed up by the support body 33 is lowered together with the support body 33, and the communication port 7 between the transfer chamber 9 and the cleaning chamber 4 is covered and hermetically sealed.

Then, a vertically movable table 29 on which the object to be cleaned 2 is placed
is immersed in the liquid cleaning tank 26 to perform liquid cleaning of the object 2 to be cleaned. After this liquid cleaning is completed, the vertical movement cylinder 19
The vertically movable table 29 is raised by the
Cleaning steam is supplied from a steam generation tank 27 adjacent to the liquid cleaning tank 26, and steam cleaning is performed in the upper part of the liquid cleaning tank 26. After this steam cleaning is completed, the vertically movable table 29 is further ascended, and the cleaning steam is condensed in the cooling unit 28, and the cleaning of the object 2 to be cleaned is completed.

After this cleaning is completed, when the vertically movable table 29 in the cleaning chamber 4 is raised, the support body 33 that projects upwardly covers and seals the communication port 7 between the moving chamber 9 and the cleaning chamber 4. Push up 12 to release it. By this opening, the vertically movable table 29 rises into the moving chamber 9 and positions the object 2 to be cleaned within the moving chamber 9.

In this state, the communication ports 6 and 8 of the introduction chamber 3 and the outlet chamber 5 are sealed by the lids 11 and 13.
In addition, a shield 3 formed on the outer periphery of the vertically movable table 29
4 closes the communication port 7 of the cleaning chamber 4 with the transfer chamber 9, so that no solvent gas leaks to the outside of the cleaning tank 1.

Next, the object to be cleaned 2 is moved to the horizontal movement mechanism 23.
In the upper direction of the extraction chamber 5 adjacent to the cleaning chamber 4,
Vertical moving table 29 for moving and cleaning chamber 4
is lowered from the moving chamber 9 to the cleaning chamber 4 by the vertically moving cylinder 19.

Due to this lowering, the lid 12 that has been pushed up by the support 33 is lowered together with the support 33 to cover and seal the communication port 7 between the transfer chamber 9 and the cleaning chamber 4. Further, the object to be cleaned 2 is moved toward the outlet chamber 5, and the vertically movable table 33 of the outlet chamber 5 is raised by the vertically moving cylinder 19. As the vertically movable table 31 rises, the support body 36 projecting upward pushes up and opens the lid 13 that covers and seals the communication port 8 between the moving chamber 9 and the outlet chamber 5. When the lid 13 is opened, the object to be cleaned 2 is inserted into the moving chamber 9 by the vertical moving table 31 and moved on the roller conveyor 17 formed at the bottom of the moving chamber 9 by the horizontal moving mechanism 23. is placed on the upper surface of the vertically movable table 31.

In this state, the vertically movable table 31 can seal the communication port 8 between the moving chamber 9 and the extraction chamber 5 with the shield 37 provided on the outer periphery, thereby preventing the solvent gas from flowing into the extraction chamber 5. Furthermore, when the object to be cleaned 2 is placed on the vertically moving table 31 for the extraction chamber 5, the communication port 7 between the cleaning chamber 4 and the moving chamber 9 is closed by the lid 12.

In addition, as shown in FIG. 1, the communication port 7 of the cleaning chamber 4
If there is a placement interval 38 between the communication port 8 of the extraction chamber 5, move the object 2 to be cleaned to the placement interval 38, close the communication port 7 of the cleaning chamber 4, and then close the communication port 8 of the extraction chamber 5. If 8 is opened, the effect of preventing the diffusion of solvent gas can be enhanced.

Next, the vertical movement table 31 is moved to the vertical movement cylinder 1.
9, it descends from the transfer chamber 9 to the derivation chamber 5. Due to this lowering, the lid 1 that had been pushed up by the support 33
3 descends together with the support 33 to cover and seal the communication port 8 between the transfer chamber 9 and the outlet chamber 5. After the vertically movable table 31 is lowered, the object 2 to be cleaned is led out from the outlet chamber 5 by the roller conveyor 17 at the outlet 32, and cleaning of the object 2 to be cleaned is completed.

Further, as described above, when the lid 12 that seals the communication port 7 of the cleaning chamber 4 is opened, the transfer chamber 9
A communication port 6 between the transfer chamber 9 and the introduction chamber 3 and a communication port 8 between the transfer chamber 9 and the output chamber 5 are sealed by a lid 11 . Furthermore, when the communication port 6 of the introduction chamber 3 or the communication port 8 of the outlet chamber 5 is open, the communication port 7 of the cleaning chamber 4 is sealed by the lid 12.

Therefore, the source of the solvent gas and the outside of the cleaning tank 1 are always cut off, and diffusion of the solvent gas to the outside is prevented. Therefore, the shutters 16 provided at the inlet 14 and the outlet 32 of the object to be cleaned 2 are not necessarily required. However, if the shutter 16 is provided, it goes without saying that the effect of preventing the diffusion of solvent gas can be further improved.

Effects of the Invention Since the present invention is constructed as described above, even if the lid that covers and seals the communication port between the cleaning chamber and the transfer chamber is pushed up and opened using the support,
The communication port between the transfer chamber and the introduction chamber and the communication port between the transfer chamber and the output chamber are kept covered and sealed by the lid.

Therefore, even if the communication port of the cleaning chamber is opened when introducing the object to be cleaned into the cleaning chamber, there is no communication between the cleaning chamber and the outside, and the solvent gas may flow out as the object to be cleaned comes in and out. It can prevent the spread.

In addition, moving the items to be cleaned from the introduction chamber to the transfer chamber,
When moving objects to be cleaned from the transfer chamber to the extraction chamber, the communication port of the cleaning chamber is kept sealed with a lid or shield, which prevents solvent gas from leaking and ensures safe operation. Enables cleaning work.

Further, the above-mentioned prevention of outflow of solvent gas does not require a complicated and expensive device such as a vacuum pump, and does not cause problems in processing the solvent gas sucked in by a vacuum pump or the like.

[Brief explanation of drawings]

The drawings show one embodiment of the invention,
FIG. 1 is a sectional view of the entire apparatus, and FIG. 2 is a partially enlarged perspective view showing the relationship between the vertically moving table, the horizontal moving mechanism, and the lid. 2...Object to be cleaned, 3...Introduction chamber, 4...Cleaning chamber, 5...Outlet chamber, 6...Communication port, 7...Communication port, 8...Communication port, 9...Movement chamber, 11 ...Lid body, 12... Lid body, 13... Lid body, 18... Vertical moving table, 21... Support body, 22... Shield body, 23
...Horizontal movement mechanism, 29...Vertical movement table, 31...
...Vertical moving table, 33... Support, 34... Shielding body, 36... Support body, 37... Shielding body.

Claims (1)

[Claims] 1. An introduction chamber for introducing the object to be cleaned, a cleaning chamber for performing cleaning work for the object to be cleaned, and a discharge chamber for leading out the object to be cleaned to the outside are formed adjacent to each other in the horizontal direction, and the introduction chamber A movement chamber for objects to be cleaned is formed through a communication port in the upper part of the cleaning chamber and the outlet chamber, and a horizontal movement mechanism for moving objects to be cleaned to the upper part of each adjacent chamber is formed in this movement chamber, In addition, each chamber is provided with a vertically moving table on which the object to be cleaned is placed on its upper surface and moved from each chamber to the transfer chamber, and each of the vertically moving tables has a support body protruding upward, so that the objects to be cleaned are placed on the upper surface and moved from each chamber to the transfer chamber. The lid covering and sealing the communication port can be pushed up and opened using a support, and the vertically movable table is equipped with a shield that can seal the communication port while the object to be cleaned is placed in the transfer chamber. In the process in which the supporting body of the vertically movable table opens the communication port of the introduction chamber, washing chamber, or outlet chamber, the lid of the other communication port is in a closed state, and the support of the vertically moving table A cleaning device characterized in that the chamber is always blocked from communicating with the cleaning chamber by a lid or a shield.