JP2019042683A - Decompression drying and washing transfer device of object to be washed - Google Patents

Abstract

To acquire a decompression drying and washing transfer device which can wash and dry in a space-saving manner without requiring humans during washing work and in transfer of an object to be washed during drying work and which enables washing and drying work under a decompressed atmosphere.SOLUTION: A decompression drying and washing transfer device for object to be washed includes: a partition plate 3 which can move up/down in a washing tank 1 by a vertical motion mechanism, which divides the washing tank into a lower space 28 and an upper space 27 in an air-tight manner by being closely attached to an inner peripheral frame 2 of the washing tank via a first seal member 11, and which can reduce pressure in the upper space by a decompression mechanism 31; a pair of opposing openings 5 provided on side walls 4 on the upper space forming side of the washing tank; a pair of closing plates 6 capable of air-tightly sealing each of the pair of openings via second seal members 24; and a transfer mechanism 30 extending in the horizontal direction outside of the washing tank from the pair of openings and capable of transferring objects to be washed to the inside and outside of the washing tank via the partition plate and the pair of openings.SELECTED DRAWING: Figure 1

Description

  The present invention can easily perform a cleaning operation according to the cleaning purpose of an object to be cleaned such as a machine part, an electronic part, or a medical device, and easily transfer the object to be cleaned into or out of a cleaning tank. The present invention relates to a cleaning and transfer device.

  Regarding the cleaning of industrial parts, it has been common practice to use a high-boiling point petroleum-based solvent or a hydrophilic solvent as an alternative to chlorofluorocarbon cleaning. In this cleaning, various processes such as liquid cleaning, steam cleaning, and drying are performed. Conventionally, a cleaning tank and a drying tank are separately provided as shown in Patent Document 1, for example. .

Japanese Patent Laid-Open No. 7-256220

  However, the cleaning apparatus as shown in Patent Document 1 requires that an operator manually or using a tool for each process to move the object to be cleaned in and out of the cleaning tank or the drying tank and to transfer it. And it required a lot of manpower. In addition, when vacuum cleaning or vacuum drying is performed after liquid cleaning or steam cleaning, it is necessary to decompress the entire cleaning tank or drying tank separately formed. However, since much energy and time are consumed for decompression, the efficiency is poor.

  Accordingly, the present invention is intended to solve the above-described problems, and does not require a lot of manpower for transferring the object to be cleaned during the cleaning operation and the drying operation, and also saves space for cleaning and drying. It is an object of the present invention to obtain a reduced-pressure drying and cleaning transfer device that can be easily performed at the same time and that can be easily cleaned and dried in a reduced-pressure atmosphere.

  In order to solve the above-described problems, the present invention makes it possible to move up and down in the cleaning tank by a vertical movement mechanism, and to bring it into close contact with an inner peripheral frame provided in the cleaning tank through a first seal member. A partition plate in which the interior of the cleaning tank can be divided into a lower space and an upper space in an airtight manner, and the upper space can be depressurized by a decompression mechanism, and a pair of opposing surfaces provided on the side wall on the upper space forming side constituting the cleaning tank And a pair of closing plates that allow the pair of openings to be sealed through the second seal member, and the partition plate extending horizontally from the pair of openings to the outside of the cleaning tank, and And a transfer mechanism that allows the object to be cleaned to be transferred into and out of the cleaning tank through a pair of openings.

  Since the present invention is configured as described above, liquid cleaning, steam cleaning, and drying operations can all be performed in one cleaning tank. In addition, the inside of the washing tank can be divided into a lower space and an upper space in an airtight manner, and the inside of the washing tank and the upper space can be depressurized. It can be done easily.

  Furthermore, a transfer mechanism is provided that extends horizontally from the pair of openings to the outside of the cleaning tank and enables the object to be cleaned to be transferred into and out of the cleaning tank through the partition plate and the pair of openings. It is possible to carry out the cleaning from the arrangement of the object to be cleaned to the cleaning tank and the unloading of the object to be cleaned from the cleaning tank after drying without the need for many manual operations or other special devices. Therefore, the cleaning cost can be kept low, and the cleaning and drying operations can be facilitated under a normal pressure atmosphere or a reduced pressure atmosphere.

The conceptual diagram of Example 1 which shows this invention. FIG. 3 is a conceptual diagram when transferring an object to be cleaned in the first embodiment. The conceptual diagram at the time of the pressure-reduced-pressure steam cleaning and drying of the to-be-cleaned object in Example 1. The conceptual diagram at the time of the liquid cleaning of the to-be-cleaned object in Example 1. FIG.

  1-4, the first embodiment of the present invention will be described. As shown in FIG. 1, (1) is a cleaning tank, and an inner peripheral frame (2) protrudes from the inner periphery of the central portion in the height direction. Has been established. Under the inner peripheral frame (2), the inner peripheral frame (2) can be covered in a state of overlapping the bottom surface of the inner peripheral frame (2), and a vertical movement mechanism (not shown) is used. A flat partition plate (3) that can move up and down in the cleaning tank (1) is provided. A pair of openings (5) are formed in the side walls (4) positioned above the inner peripheral frame (2) and facing each other.

  Further, on the upper surface (26) of the partition plate (3), a mounting plate (8) for mounting the object to be cleaned (7) is provided, and the surface of the mounting plate (8) is appropriately A roller (10) that can be rotated by a rotating mechanism (not shown) is provided. Further, on the side wall (4) on the side where the opening (5) is formed, a closing plate (6) that covers and covers the pair of openings (5) is provided. The pair of closing plates (6) are assembled outside the opening (5) so as to be slidable in the vertical direction along the side wall (4). The pair of closing plates (6) is slidable in the vertical direction by an appropriate drive mechanism (not shown).

  In addition, the first transfer plate (12) and the second transfer plate (13) are flush with the inner peripheral frame (2) as shown in FIG. 1 outside the pair of openings (5) in the horizontal direction. In addition to being provided in the horizontal direction, rollers (14) and (15) that are rotated by an appropriate rotation mechanism (not shown) are also provided on the surfaces of the first and second transfer plates (12) and (13). By providing the first and second transfer plates (12) and (13) as described above, when the partition plate (3) rises to the position of the inner peripheral frame (2), the first transfer plate as shown in FIG. The object to be cleaned (7) can be smoothly transferred from (12) to the second transfer plate (13) through the pair of openings (5) and the partition plate (3) in the cleaning tank (1). Become.

  Further, as shown in FIG. 1, the cleaning tank (1) includes a steam generation tank (16) and a decompression pump (17) as a decompression mechanism (31) of the present embodiment on the top plate of the cleaning tank (1). Provided in each of the connected first connection pipe (20) and second connection pipe (21), the first connection pipe (20) has a first on-off valve (22), and the second connection pipe (21) has a second Two on-off valves (23) are provided.

  Moreover, the 2nd seal member (24) is each provided in the inner surface of a pair of closing plate (6) in the corresponding position of the opening part (5) outer periphery (25). Therefore, when the opening (5) is covered with the closing plate (6) as shown in FIG. 1, the gap between the outer periphery (25) of the opening (5) and the closing plate (6) is airtight. It can be placed in close contact. Furthermore, a first seal member (11) is provided on the upper surface (26) of the partition plate (3) at a position facing the inner peripheral frame (2). Therefore, when the partition plate (3) is brought into contact with the inner peripheral frame (2), the inner peripheral frame (2) and the closing plate (6) can be disposed in an airtight manner.

  Therefore, as shown in FIG. 1, the pair of openings (5) are covered with the closing plate (6), and the inner peripheral frame (2) is covered with the partition plate (3). In addition, the cleaning tank (1) can be divided into an upper space (27) and a lower space (28), and each can be a sealed space. In this embodiment, the first and second transfer plates (12) and (13), the partition plate (3), the mounting plate (8), the rotation mechanism, and the rollers (10), (14) and (15) It constitutes the transfer mechanism (30) of the present invention.

  A method for cleaning and transferring the object to be cleaned (7) will be described below. First, as shown in FIG. 1, in the lower space (28) of the cleaning tank (1), the cleaning solvent (32) is stored in advance to a position where the object to be cleaned (7) can be immersed, and the partition as shown in FIG. The plate (3) is arranged in advance at the same height as the inner peripheral frame (2), and the peripheral edge of the partition plate (3) is placed on the bottom surface of the inner peripheral frame (2) via the first seal member (11). Place closely. Further, the closing plate (6) is slid upward by the driving mechanism, so that the opening (5) is opened to a position where the object to be cleaned (7) can pass as shown in FIG. The first and second on-off valves are both closed.

  In the state where the object to be cleaned (7) is arranged on the first transfer plate (12) as shown by the solid line in FIG. 2, the rollers of the first transfer plate (12) and the mounting plate (8) are rotated by the rotation mechanism. (10) Rotate (14) in the direction of travel. As a result, the object to be cleaned (7) passes through the opening (5) and moves onto the placing plate (8) of the partition plate (3). Then, with the object to be cleaned (7) placed on the placing plate (8) in this way, as shown by the arrows in FIG. 3, the pair of closing plates (6) are slid downward to open the openings ( 5) and placed in close contact with the outer periphery (25) of the opening (5).

  By placing the partition plate (3) and the pair of closing plates (6) in close contact with the inner peripheral frame (2) and the outer periphery (25) of the opening (5) as described above, the upper space of the cleaning tank (1) (27) is hermetically sealed by the partition plate (3) and the pair of closing plates (6). Next, in this state, the second open / close valve (23) is opened and the pressure reducing pump (17) is operated to reduce the pressure in the upper space (27). Then, the first on-off valve (22) is opened, and the cleaning solvent (32) previously generated in the steam generation tank (16) is supplied from the steam generation tank (16) to the first connection pipe (20 ) Is introduced into the upper space (27) through, and steam cleaning is performed in a reduced pressure atmosphere.

  As described above, since the steam cleaning can be performed only in the sealed upper space (27), it is possible to easily perform the steam cleaning under a reduced pressure and to minimize the steam cleaning space. Therefore, it is possible to efficiently perform the steam cleaning without requiring a large amount of cleaning steam as compared with the case of performing the steam cleaning in the entire cleaning tank (1). When the steam cleaning is completed, the first on-off valve (22) is closed to stop the supply of cleaning steam, and the process proceeds to the following liquid cleaning.

  This liquid cleaning will be described. By operating the vertical movement mechanism and moving the partition plate (3) downward, the object to be cleaned (7) is immersed in the cleaning solvent (32) as shown by the solid line in FIG. State. Subsequently, the vacuum pump (17) is continuously operated to place the entire cleaning tank (1) in a reduced pressure state, and the object to be cleaned (7) is cleaned in this reduced pressure atmosphere. In the present embodiment, the liquid cleaning and the steam cleaning are performed under reduced pressure as described above. However, in other embodiments, the present invention is not limited to this, and can be performed under normal pressure.

  After the steam cleaning and liquid cleaning are completed as described above, the object to be cleaned (7) is dried. This drying operation will be described. As shown in FIG. 2, the partition plate (3) in the cleaning tank (1) is moved upward to the position of the inner peripheral frame (2) by the vertical movement mechanism. Thus, the object to be cleaned (7) on the mounting plate (8) is arranged in the upper space (27), and the upper space (27) is divided into the partition plate (3) and the pair of closing plates (6 ) And the sealed state. Subsequently, the decompression pump (17) is operated to keep the upper space (27) in a decompressed state, and the object to be cleaned (7) is dried.

  Then, after the drying operation is completed, the second on-off valve (23) is closed and the operation of the decompression pump (17) is stopped. Then, the upper space (27) in a reduced pressure state is provided in the second connection pipe (21), and the third on-off valve communicating with the outside air is opened to introduce the outside air, and the pressure is returned to normal pressure. After that, as shown in FIG. 2, the pair of closing plates (6) is slid upward to open the opening (5), and the rollers (10) on the mounting plate (8) and the second transfer plate (13) ( By rotating 15) in the traveling direction, the object to be cleaned (7) on the mounting plate (8) is transferred to the second transfer plate (13) and taken out of the cleaning tank (1).

  As described above, since the object to be cleaned (7) can be transferred by the transfer mechanism (30) in a series of operations from the start of cleaning to after cleaning, the object to be cleaned (7) in the cleaning tank (1) ) Placement operation, cleaning operation, drying operation, and removal of the object to be cleaned (7) from the cleaning tank (1) can be easily performed without requiring many manual operations. Accordingly, the cleaning cost can be kept low, and the cleaning and drying operations under normal pressure or reduced pressure can be facilitated.

  In addition, liquid cleaning, vapor cleaning, and drying operations under reduced pressure or normal pressure can all be performed in one cleaning tank (1), so a series of operations from cleaning to drying without requiring a large space. Can be performed. Furthermore, the cleaning tank (1) can be divided into a lower space (28) and an upper space (27) in an airtight manner, and the cleaning tank (1) and the upper space (27) can be decompressed. Therefore, it is possible to easily perform cleaning and drying operations under a reduced pressure atmosphere.

DESCRIPTION OF SYMBOLS 1 Cleaning tank 2 Inner peripheral frame 3 Partition plate 4 Side wall 5 Opening part 6 Closing plate 7 To-be-cleaned object 11 1st sealing member 16 Steam generation tank 17 Pressure reduction pump 24 2nd sealing member 27 Upper space 28 Lower space 30 Transfer mechanism 31 Pressure reduction Mechanism 32 Cleaning solvent

Claims (2)

  The cleaning tank can be moved up and down by a vertical movement mechanism, and the cleaning tank is hermetically sealed between the lower space and the upper space by closely contacting the inner peripheral frame provided in the cleaning tank via the first seal member. A partition plate in which the upper space can be depressurized by a depressurization mechanism, a pair of opposed openings provided on the side wall on the upper space forming side constituting the cleaning tank, and the pair of openings (2) A pair of closing plates each capable of being sealed via a seal member, and extending from the pair of openings to the outside of the cleaning tank in the horizontal direction and cleaning the object to be cleaned through the partition plate and the pair of openings. A depressurized drying and cleaning transfer device for an object to be cleaned, comprising a transfer mechanism that enables transfer into and out of a tank.   The apparatus for vacuum drying and cleaning transfer of an object to be cleaned according to claim 1, wherein a steam generation tank for generating a vapor of the cleaning solvent and a vacuum pump for decompressing the inside of the cleaning tank are connected to the cleaning tank.