JP2013099705A - Device for cleaning article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To clean metal workpieces W efficiently and uniformly.SOLUTION: A device 1 for cleaning articles includes a cleaning tank 3 storing a cleaning liquid 13, and a stirrer 21 for stirring the cleaning liquid 13. The stirrer 21 includes a plurality of jet nozzles 22 disposed in wall faces 3A, 3A' opposing each other, and a plurality of electromagnetic open/close valves 25, and the operation of these valves is controlled by a controller 26. A cleaning basket B storing a plurality of metal workpieces W is submerged in the cleaning liquid 13, and in that state, the controller 26 operates a pump P and simultaneously opens the electromagnetic open/close valve 25 at a required place. Then, the cleaning liquid 13 is jetted from the jet nozzle 22 corresponding to the opened electromagnetic open/close valve 25, and the cleaning liquid 13 flows toward clockwise direction, for example, in the cleaning tank 3 and the cleaning liquid 13 becomes stirred.

Description

  The present invention relates to an article washing apparatus, and more particularly to an article washing apparatus in which an article is immersed in a washing liquid and the washing liquid is stirred to wash the article.

  2. Description of the Related Art Conventionally, an article cleaning apparatus in which an article to be cleaned is immersed in a cleaning tank in which a cleaning liquid is stored for cleaning is known (for example, Patent Document 1 and Patent Document 2). In such a conventional article cleaning apparatus, in order to improve the cleaning effect, for example, a cleaning basket containing a plurality of articles is swung in a cleaning solution or is immersed in a cleaning tank. On the other hand, processing such as spraying a jet of cleaning liquid is performed.

JP-A-4-215878 JP-A-6-134347

However, the following problems have been pointed out in the conventional article cleaning apparatus described above. In other words, the method of swinging the article contained in the cleaning basket within the cleaning liquid has a drawback that the swing mechanism is likely to break down because the load on the swing mechanism that swings the cleaning basket is large.
On the other hand, in the method of spraying the cleaning liquid toward the article immersed in the cleaning liquid, the jet from the injection nozzle may not hit the article due to the difference in the shape and size of the article to be cleaned. It is difficult to clean the article. Therefore, in order to obtain a sufficient cleaning effect, it has been necessary to change the arrangement of articles in the cleaning tank or lengthen the cleaning time.
Further, it has been proposed to change the direction of the injection nozzle that injects the cleaning liquid, or to make the injection nozzle swingable (see paragraph 0081 of Patent Document 1). However, the addition of such a configuration has the disadvantages that the configuration of the article cleaning apparatus becomes complicated, the manufacturing cost increases, and the maintenance effort increases.

In view of the circumstances described above, the present invention includes a cleaning tank in which a cleaning liquid is stored, and a stirring unit that stirs the cleaning liquid in the cleaning tank, so that the article to be cleaned is immersed in the cleaning liquid in the cleaning tank. In the article cleaning apparatus that performs cleaning by stirring the cleaning liquid in the cleaning liquid by the stirring means,
The stirring means includes a plurality of spray nozzles that spray the cleaning liquid toward the article immersed in the cleaning liquid, a switching mechanism that switches between the spraying of the cleaning liquid from each spray nozzle and the operation of stopping the spraying, and controls the operation of the switching mechanism. Control means for controlling the flow of the cleaning liquid when the stirring means stirs the cleaning liquid by controlling from which spray nozzle the cleaning liquid is jetted via the switching mechanism. It is what.

  According to such a configuration, the flow direction of the cleaning liquid in the cleaning tank can be switched depending on which injection nozzle the cleaning liquid is injected from. Therefore, the articles in the cleaning liquid can be efficiently and uniformly cleaned with the cleaning liquid.

The front view which shows one Example of this invention. FIG. 2 is a schematic plan view showing a configuration of a main part of FIG. 1. FIGS. 3A and 3B are diagrams illustrating the stirring operation of the cleaning liquid by the stirring unit of FIG. 2, FIG. 3A is a plan view of the first embodiment, and FIG. 3B is a longitudinal sectional view illustrating the operation of the first half of the first embodiment; FIG.3 (c) is a longitudinal cross-sectional view which shows the operation | movement of the second half of 1st Example. FIGS. 4A and 4B are diagrams showing the stirring operation of the cleaning liquid by the stirring means of FIG. 2, FIG. 4A is a longitudinal sectional view in the case of the second embodiment, and FIG. FIG. 4 (c) is a plan view showing the latter half of the operation of the second embodiment. FIG. 5A is a plan view showing a third embodiment, and FIG. 5B is a longitudinal sectional view showing an operation in the first half of the third embodiment. FIG.5 (c) is a longitudinal cross-sectional view which shows the operation | movement of the second half of 3rd Example. The schematic plan view which shows the other Example of this invention.

The present invention will be described below with reference to the illustrated embodiment. In FIG. 1, reference numeral 1 denotes an article cleaning apparatus. The article cleaning apparatus 1 performs cleaning in a state where, for example, a plurality of dirty metal parts W are accommodated in a cleaning basket B. It has become.
The article cleaning apparatus 1 includes a cleaning tank 3, a rinse tank 4 and a rust prevention tank 5 arranged in a straight line in a frame-shaped fixed frame 2, a supply conveyor 6 arranged on the adjacent upstream side of the cleaning tank 3, The discharge conveyor 7 disposed on the downstream side adjacent to the anti-corrosion tank 5 and the traveling along the longitudinal direction on the fixed frame 2 and also capable of moving up and down while holding the cleaning basket B And a carriage 11.

The articles to be cleaned by the article cleaning apparatus 1 are block-shaped or bar-shaped metal parts W having different sizes and shapes. Therefore, in this embodiment, a plurality of metal parts W having different shapes and the like are cleaned by being immersed in a liquid such as the cleaning liquid 13 in a state where they are accommodated in the cleaning basket B.
A pair of handles B1 and B1 extending upward are attached to the front and rear of the washing basket B in the moving direction, and the handles B1 and B1 of the washing basket B are hooked and held by the pair of arms 12 and 12 of the traveling carriage 11. It is like that.

  The cleaning tank 3, the rinsing tank 4, and the rust prevention tank 5 of the present embodiment are box-shaped with an open top surface, the cleaning liquid 13 is stored in the cleaning tank 3, and the hot water 14 is stored in the rinsing tank 4. In addition, a rust prevention liquid 15 is stored in the rust prevention tank 5. Further, a shutter 16 capable of closing the opening on the upper surface is provided on one side of the upper end portions of the cleaning tank 3, the rinse tank 4, and the rust prevention tank 5. When the metal parts W are cleaned in each of the tanks 3 to 5, the shutters 16 are opened, and the upper surface openings of the tanks 3 to 5 are opened. In this state, the cleaning basket B held by the arms 12 and 12 of the traveling carriage 11 is immersed in the liquids in the tanks 3 to 5. On the other hand, when the cleaning operation is not performed, the upper surface openings of the tanks 3 to 5 are closed by the shutters 16.

As shown in FIG. 2, the cleaning tank 3 of this embodiment is provided with a stirring means 21 for forcibly stirring the cleaning liquid 13 in the cleaning tank 3. The agitating means 21 is provided with a plurality of injection nozzles 22 fixed horizontally to the opposing wall surfaces 3A and 3A 'of the cleaning tank 3 in the cleaning liquid 13, a main pipe 23, and a plurality of branch pipes 24 branched therefrom. A pump P for feeding the cleaning liquid 13 to each injection nozzle 22 and a normally closed electromagnetic switching valve 25 provided in each branch pipe 24 corresponding to each injection nozzle 22 are provided.
The operation of each electromagnetic on-off valve 25 and pump P of the stirring means 21 is controlled by the control means 26. The suction port of the pump P is connected to one end of the suction pipe 27, and the other end of the suction pipe 27 is connected to the suction port on the bottom surface of the cleaning tank 3. Therefore, when the pump P is operated by the control means 26, the cleaning liquid 13 is jetted from the respective jet nozzles 22 after the cleaning liquid 13 in the cleaning tank 3 is sucked by the pump P. That is, in the present embodiment, the cleaning liquid 13 is circulated between the cleaning tank 3 and each of the injection nozzles 22 by the pump P and used for cleaning. A filter F for filtering the cleaning liquid 13 is provided in the middle of the suction pipe 27.
As will be described in detail later, when the pump P is in operation, the control means 26 switches the opening / closing operation of the electromagnetic opening / closing valve 25 at a required position, thereby switching the flow direction when the cleaning liquid 13 in the cleaning tank 3 is stirred. It is like that.
In addition, although a drawing is omitted, the stirring means 21 having the same configuration as that provided in the cleaning tank 3 is also provided in the rinsing tank 4 and the antirust tank 5, and the stirring means of the rinse tank 4 and the antirust tank 5 is provided. 21 is also controlled by the control means 26.

Here, the traveling carriage 11 that holds and transports the cleaning basket B will be described. The traveling carriage 11 includes a motor (not shown) linked to the wheels, and the traveling carriage 11 is rotated on a pair of rails 31 on the fixed frame 2 by rotating the motor forward and backward by a required amount by the control means 26. You can run along. Accordingly, the traveling carriage 11 is moved to the supply position A on the supply conveyor 6, the upper positions of the tanks 3 to 5, and the positions on the discharge conveyor 7.
The arm 12, 12 is provided on the traveling carriage 11 so that it can be raised and lowered and opened and closed. More specifically, an air cylinder 32 is attached to each arm 12, 12, and both arms 12, 12 can be moved up and down by a chain (not shown) connected to the upper ends thereof and motors 33, 33 for lifting. It has become. The operation of the air cylinder 32 and elevating motors 33, 33 is controlled by the control means 26. The control means 26 opens and closes the arms 12 and 12 by expanding and contracting the air cylinder 32, and moves the arms 12 and 12 up and down by rotating the elevating motors 33 and 33 in the opposite direction. Yes.

The control means 26 moves the traveling carriage 11 from the supply position A to a position above each of the tanks 3 to 5 and further to each position on the discharge conveyor 7, and raises and lowers the arms 12 and 12 by a required amount at each position. It opens and closes at the required position. And the control means 26 is the state by which the washing basket B hold | maintained with the arms 12 and 12 of the traveling trolley | bogie 11 was immersed in the liquid in each tank 3-5. It is designed to be stirred.
Here, the cleaning process of the metal part W by the article cleaning apparatus 1 will be described. That is, first, the control means 26 stops the traveling carriage 11 on the supply position A immediately before the cleaning basket B is supplied to the supply position A. In this state, when the cleaning basket B containing a plurality of metal parts W is placed on the traveling supply conveyor 6, the cleaning basket B is supplied to the supply position A by the supply conveyor 6 and stops. Then, the control means 26 lowers the arms 12 and 12 of the traveling carriage 11 by a required amount and then expands them. Accordingly, the handles B1 and B1 of the cleaning basket B are held by the arms 12 and 12.

Thereafter, the control means 26 raises the arms 12 and 12 of the traveling carriage 11 and moves the entire traveling carriage 11 to a position above the cleaning tank 3 and stops there. Thereafter, the control means 26 lowers the arms 12 and 12 by a required amount, so that the cleaning basket B held by the arms 12 and 12 and the metal parts W accommodated therein are placed in the cleaning liquid 13 in the cleaning tank 3. Soaked.
Then, the control means 26 operates the pump P of the stirring means 21 shown in FIG. 2 and opens the electromagnetic on-off valve 25 at a required position. Therefore, the cleaning liquid 13 is jetted toward the metal part W in the cleaning basket B from the spray nozzle 22 at a position corresponding to the opened electromagnetic on-off valve 25. As a result, the cleaning liquid 13 in the cleaning tank 3 is forcibly flowed and stirred, so that the plurality of metal parts W in the cleaning basket B are cleaned by the flowing cleaning liquid 13.

In this way, when the cleaning liquid 13 in the cleaning tank 3 is stirred for a predetermined time by the stirring means 21 and the metal part W in the cleaning basket B is cleaned accordingly, the control means 26 pumps the stirring means 21. While the operation of P is stopped, the opened electromagnetic on-off valve 25 is closed. Thereby, the cleaning of the metal part W with the cleaning liquid 13 in the cleaning tank 3 is completed.
Then, the control means 26 raises the arms 12, 12 of the traveling carriage 11 by a required amount, so that the cleaning basket B is taken out from the cleaning liquid 13 in the cleaning tank 3 and supported above the cleaning tank 3. Thereafter, the control means 26 moves the traveling carriage 11 to the upper position of the rinsing tank 4 and then stops it. Thereafter, the control means 26 lowers the arms 12 and 12 of the traveling carriage 11 by a required amount. As a result, the cleaning basket B held by the arms 12 and 12 and the metal part W therein are immersed in the hot water 14 in the rinse tank 4.
Thereafter, the control means 26 forcibly causes the warm water 14 in the rinse tank 4 to flow and stir by the stirring means 21 for the rinse tank 4 having the same configuration as that of the cleaning tank 3. As a result, the metal component W in the cleaning basket B is washed away by the flowing hot water 14.

In this way, when a predetermined time elapses after the stirring means 21 for the rinsing tank 4 is operated, the control means 26 stops the operation of the stirring means 21 for the rinsing tank 4. Thereby, the rinsing of the metal parts W in the cleaning basket B is completed by the hot water 14 in the rinsing tank 4. Then, the control means 26 raises the arms 12, 12 of the traveling carriage 11 by a required amount, so that the cleaning basket B is taken out from the hot water 14 of the rinse 4 tank and supported above it. Thereafter, the control means 26 moves the traveling carriage 11 to the upper position of the anticorrosion tank 5 and then stops it, and then the control means 26 lowers the arms 12 and 12 of the traveling carriage 11 by a required amount. As a result, the cleaning basket B and the metal part W inside thereof are immersed in the rust prevention liquid 15 in the rust prevention tank 5.
Next, the control means 26 operates the stirring means 21 for the rust prevention tank 5 having the same configuration as that of the cleaning tank 3 for a predetermined time. Therefore, since the rust prevention liquid 15 in the rust prevention tank 5 is forcibly stirred, the rust prevention liquid 15 uniformly adheres to the surface of the metal part W in the cleaning basket B. Thereafter, the control unit 26 stops the stirring unit 21 and then raises the arms 12 and 12 of the traveling carriage 11 by a required amount. As a result, the cleaning basket B and the metal part W accommodated therein are taken out from the rust prevention tank 5 and supported above.
As described above, the metal part W in the cleaning basket B is cleaned with the cleaning liquid 13, then rinsed with warm water 14, and finally the rust prevention liquid 15 is adhered. And if such a washing | cleaning process and a subsequent process are made, the control means 26 will move the traveling trolley | bogie 11 to the discharge conveyor 7, and will stop. Thereafter, the control means 26 lowers the arms 12 and 12, then reduces the opening amount of the arms 12 and 12, and then raises the arms 12 and 12. As a result, the holding state of the cleaning basket B by the arms 12 and 12 is released, so that the cleaning basket B containing the metal part W is discharged onto the discharge conveyor 7 and discharged to a downstream position (not shown) by the discharge conveyor 7. It has come to be.

Thus, in the present embodiment, the flow when the cleaning liquid 13 in the cleaning tank 3 is stirred by appropriately switching which spray nozzle 22 of the plurality of spray nozzles 22 included in the stirring unit 21 is to be sprayed. The feature is that the direction is switched.
That is, as shown in FIG. 2 to FIG. 3A to FIG. 3C, four spray nozzles 22 are arranged on the upper and lower positions on the wall surfaces 3 </ b> A and 3 </ b> A ′ at the opposite positions in the cleaning liquid 13. ing. That is, a total of 16 injection nozzles 22 are fixedly arranged with eight on one wall surface 3A and eight on the other wall surface 3A ′. The injection nozzle 22 is attached to the tip of each branch pipe 24, and as described above, each branch pipe 24 is provided with an electromagnetic on-off valve 25.
The upper four injection nozzles 22 and the lower four injection nozzles 22 are arranged at the same pitch in the horizontal direction, and when viewed in plan view, the upper injection nozzle 22 and the lower injection nozzle 22 22 is superposed (FIGS. 2 and 3A). Further, a total of eight nozzles 22 on the upper side are provided at a position higher than the central portion Ba in the vertical direction of the cleaning basket B when the cleaning basket B is immersed in the cleaning liquid 13 (FIG. 3B). )). On the other hand, a total of eight nozzles 22 on the lower side are provided at positions lower than the central portion Ba in the vertical direction of the cleaning basket B when the cleaning basket B is immersed in the cleaning liquid 13.
When the cleaning basket B containing the metal part W is immersed in the cleaning liquid 13 by the arms 12 and 12 of the traveling carriage 11, the control means 26 causes the pump P and the electromagnetic on-off valve 25 of the stirring means 21 to be as follows. The cleaning liquid 13 is agitated by controlling the operation of.

First, in the first embodiment, in a state where the pump P is operated, the control means 26 opens the electromagnetic on-off valves 25 for the lower four injection nozzles 22 on one wall surface 3A and the other wall surface. The electromagnetic on-off valves 25 for the upper four injection nozzles 22 in 3A ′ are opened. Accordingly, the cleaning liquid 13 is sprayed from the lower four spray nozzles 22 on the one wall surface 3A toward the metal part W in the cleaning basket B, and at the same time, the upper four spray nozzles on the other wall surface 3A ′. The cleaning liquid 13 is sprayed from 22 toward the metal part W (see FIGS. 2, 3A, and 3B). As a result, the cleaning liquid 13 in the cleaning tank 3 flows counterclockwise about the horizontal axis C1, and the metal component W is cleaned by the cleaning liquid 13 flowing in this manner and the cleaning liquid 13 directly sprayed from each cleaning nozzle 22. The
Then, when a predetermined time set in advance elapses, the control unit 26 switches the flow direction of the cleaning liquid 13 by the stirring unit 21. That is, the control means 26 closes the electromagnetic opening / closing valve 25 that has been opened until then, and opens the remaining electromagnetic opening / closing valve 25 that has been closed until then. Accordingly, the cleaning liquid 13 is sprayed from the upper four spray nozzles 22 on the one wall surface 3A toward the metal part W in the cleaning basket B, and at the same time, the four sprays on the lower side of the other wall surface 3A ′. The cleaning liquid 13 is sprayed from the nozzle 22 toward the metal part W (see FIGS. 2 and 3C). As a result, the cleaning liquid 13 in the cleaning tank 3 flows in the clockwise direction as opposed to before, and the metal component W is cleaned by the cleaning liquid 13 flowing in this way and the cleaning liquid 13 directly sprayed from each cleaning nozzle 22. The The electromagnetic opening / closing valve 25 is not necessarily provided for each injection nozzle 22, and if there is no hindrance to the flow of the cleaning liquid 13, for example, the electromagnetic opening / closing valve 25 corresponding to the two adjacent injection nozzles 22 is 1 (See FIG. 6).
Thereafter, when a predetermined time set in advance elapses, the control means 26 closes the electromagnetic on-off valve 25 that has been opened so far, and the stirring operation of the cleaning liquid 13 by the stirring means 21 is ended. It should be noted that the agitation operation may be repeated a plurality of times according to dirt. As described above, the cleaning liquid 13 in the cleaning tank 3 flows in the counterclockwise direction and the clockwise direction around the horizontal axis C <b> 1 as the center of rotation by switching which of the spray nozzles 22 of the stirring means 21 is sprayed. The direction can be switched.

Next, a second embodiment of the stirring operation by the stirring means 21 will be described as follows. That is, as shown in FIG. 4, in the second embodiment, when the pump P is operated, the control means 26 is more than the center of the electromagnetic on-off valves 25 for the upper and lower four injection nozzles 22 on the wall surface 3A. The four on the left side are opened, and the four electromagnetic on-off valves 25 for the upper and lower four injection nozzles 22 on the other wall surface 3A ′ are opened on the right side of the center. As a result, the cleaning liquid 13 is sprayed from the four upper and lower injection nozzles 22 on the left side of the wall surface 3A toward the metal part W in the cleaning basket B. The cleaning liquid 13 is sprayed from the spray nozzle 22 toward the metal part W (see FIGS. 4A and 4B). As a result, the cleaning liquid 13 in the cleaning tank 3 flows in the clockwise direction around the vertical axis C2 when viewed in a plan view, and the cleaning liquid 13 that flows in this way and the cleaning liquid 13 that is directly sprayed from each cleaning nozzle 22. As a result, the metal part W is cleaned.
Then, when a predetermined time set in advance elapses, the control unit 26 switches the flow direction of the cleaning liquid 13 by the stirring unit 21 to the reverse direction. That is, the control means 26 closes the electromagnetic opening / closing valve 25 that has been opened until then, and opens the remaining electromagnetic opening / closing valve 25 that has been closed until then. As a result, the cleaning liquid 13 is sprayed toward the metal part W in the cleaning basket B from the upper and lower four injection nozzles 22 on the right side of the center of the one wall surface 3A, and at the same time than the center of the other wall surface 3A ′. The cleaning liquid 13 is sprayed toward the metal part W from the upper and lower four spray nozzles 22 (see FIG. 4C). As a result, the cleaning liquid 13 in the cleaning tank 3 flows counterclockwise around the vertical axis C2 in the opposite direction, and the cleaning liquid 13 flowing in this way and the cleaning liquid 13 directly sprayed from each cleaning nozzle 22 The metal part W is cleaned.
Thereafter, when a predetermined time set in advance elapses, the control means 26 closes the electromagnetic on-off valve 25 that has been opened so far, and the stirring operation of the cleaning liquid 13 by the stirring means 21 is ended. As described above, in the second embodiment, the cleaning liquid 13 in the cleaning tank 3 is rotated clockwise around the vertical axis C2 by switching which of the spray nozzles 22 of the stirring means 21 is sprayed with the cleaning liquid 13. The flow direction can be switched to the counterclockwise direction.

Further, a third embodiment of the stirring operation by the stirring means 21 will be described as follows. In the third embodiment, the contents of the first and second embodiments described above are merged. That is, in the third embodiment, as shown in FIG. 5, in the state where the pump P is operated, the control means 26 is more than the center of the electromagnetic on-off valves 25 for the lower four injection nozzles 22 on the wall surface 3A. The two on the left side are opened, and the two on the right side of the center among the four electromagnetic on-off valves 25 for the four injection nozzles 22 above the other wall surface 3A ′ are opened. As a result, the cleaning liquid 13 is sprayed toward the metal part W in the cleaning basket B from a total of four spray nozzles 22 at positions corresponding to the opened electromagnetic on-off valves 25 (FIG. 5A, FIG. 5). b)). As a result, the cleaning liquid 13 in the cleaning tank 3 flows clockwise around the vertical axis C2 and counterclockwise around the horizontal axis C1. Then, the metal component W is cleaned by the cleaning liquid 13 that flows in such a vortex and the cleaning liquid 13 directly sprayed from each cleaning nozzle 22.
Then, when a predetermined time set in advance elapses, the control unit 26 switches the flow direction of the cleaning liquid 13 by the stirring unit 21 in the opposite direction. That is, the control means 26 closes the electromagnetic on-off valve 25 that has been opened until then, and closes the four on the left side of the center of the wall surface 3A and the four on the right side of the center of the other wall surface 3A ′. The remaining four electromagnetic on-off valves 25 are opened.
As a result, the cleaning liquid 13 is sprayed from the upper two spray nozzles 22 on the right side of the wall surface 3A toward the metal part W in the cleaning basket B, and at the same time, the lower two spray nozzles on the left side of the other wall surface 3A ′. The cleaning liquid 13 is sprayed from 22 toward the metal part W (see FIGS. 5A and 5C). As a result, the cleaning liquid 13 in the cleaning tank 3 flows counterclockwise around the vertical axis C2 and flows clockwise around the horizontal axis C1. The metal component W is cleaned by the cleaning liquid 13 that flows in such a vortex and the cleaning liquid 13 that is directly sprayed from each cleaning nozzle 22.
Thereafter, when a predetermined time set in advance elapses, the control means 26 closes the electromagnetic on-off valve 25 that has been opened so far, and the stirring operation of the cleaning liquid 13 by the stirring means 21 is ended. Thus, also in the third embodiment, the cleaning liquid 13 in the cleaning tank 3 flows in the clockwise direction and the counterclockwise direction by switching which of the injection nozzles 22 of the stirring means 21 the cleaning liquid 13 is injected. The direction can be switched. Contrary to the third embodiment, the opening / closing of the electromagnetic on-off valve 25 corresponding to the four injection nozzles 22 on the right side of the center of the wall surface 3A and the injection nozzle 22 on the right side of the center of the wall surface 3A ′ is switched. Anyway. Moreover, the stirring operation which combined suitably the stirring operation of 1st Example-3rd Example can also be performed.
Further, the stirring operation of the cleaning liquid 13 by the stirring means 21 of the cleaning tank 3 is performed as described above. The stirring means 21 for the rinsing tank 4 and the rust prevention tank 5 and the control of the operation thereof are for the cleaning tank 3 described above. This is carried out in the same manner as the stirring means 21.

As described above, according to the agitation unit 21 and the control unit 26 that controls the agitation unit 21 of the present embodiment, the flow of the cleaning liquid 13 in the cleaning tank 3 according to the shape of the metal part W to be cleaned, the degree of contamination, and the like. The direction can be switched as appropriate. Therefore, according to the article cleaning apparatus 1 of the present embodiment, the metal parts W accommodated in the cleaning basket B can be cleaned efficiently and uniformly.
Further, since the stirring means 21 of the present embodiment does not include a swing mechanism for swinging the cleaning basket B, the possibility of failure is reduced as compared with a conventional method of swinging the cleaning basket. Yes. Further, since there is no movable member for stirring the cleaning liquid 13 inside the cleaning tank 3, the present embodiment is easier to maintain than the conventional product provided with such a movable member.
It should be noted that the selection of which spray nozzle 22 of the stirring means 21 is to be sprayed with the cleaning liquid 13 and the spray timing of the cleaning liquid 13 from each spray nozzle 22 are registered in the storage unit of the control means 26 as a cleaning menu. If the electromagnetic on-off valve 25 for the injection nozzle 22 of the stirring means 21 is opened and closed based on the cleaning menu, cleaning according to the member can be easily performed.

In addition, the number and arrangement position of the injection nozzles 22 of the stirring means 21 are not limited to the above-described embodiments, and can be set as appropriate. In addition, the spray nozzle 22 of the stirring means 21 is arranged not only on the opposing wall surfaces 3A and 3A 'in the cleaning tank 3, but also on the bottom surface of the cleaning tank 3 and the remaining pair of opposing wall surfaces. Also good.
Further, in the above-described embodiment, the cleaning basket B is held by the arms 12 and 12 of the traveling carriage 11 during the cleaning of the metal part W in the cleaning tank 3, but a mounting table is provided in the cleaning tank 3. The cleaning basket B released from the arms 12 and 12 may be placed on the mounting table.
Also, each tank 3 to 5 is provided with a draining means such as an air nozzle to remove as much as possible the liquid adhering to the washing basket B and the metal part W after rinsing and taking out the liquid to the next step. May be prevented. Moreover, you may make it provide the heater in the washing tank 3 and the rinse tank 4, and heat the liquid in each tank 3 and 4 as needed. Further, the rinsing tank 4 and the rust prevention tank 5 are not necessarily required, and they may be omitted.

DESCRIPTION OF SYMBOLS 1 ... Article washing apparatus 3 ... Cleaning tank 3A, 3A '... Wall surface 13 ... Cleaning liquid 21 ... Stirring means 22 ... Injection nozzle 25 ... Electromagnetic switching valve (switching mechanism) 26 ... Control means W ... Metal parts (article)

Claims (5)

A cleaning tank in which the cleaning liquid is stored and a stirring means for stirring the cleaning liquid in the cleaning tank are provided, and the article to be cleaned is immersed in the cleaning liquid in the cleaning tank and the cleaning liquid in the cleaning liquid is stirred by the stirring means. Thus, in the article cleaning apparatus for cleaning,
The stirring means includes a plurality of spray nozzles that spray the cleaning liquid toward the article immersed in the cleaning liquid, a switching mechanism that switches between the spraying of the cleaning liquid from each spray nozzle and the operation of stopping the spraying, and controls the operation of the switching mechanism. Control means for controlling the flow of the cleaning liquid when the stirring means stirs the cleaning liquid by controlling from which spray nozzle the cleaning liquid is jetted via the switching mechanism. An article cleaning apparatus characterized by the above.   The control means causes the cleaning liquid to flow in a predetermined rotation direction by injecting the cleaning liquid from a predetermined injection nozzle provided opposite to the one side and the other side with the article interposed therebetween via a switching mechanism. 2. The article cleaning apparatus according to claim 1, wherein the control means switches the injection nozzle for injecting the cleaning liquid through the switching mechanism, and causes the cleaning liquid to flow in the opposite direction.   3. The article cleaning apparatus according to claim 1, wherein the cleaning tank has a box shape with an upper opening, and the spray nozzle is provided at a vertical position of at least a pair of opposing wall surfaces. .   4. The article cleaning according to any one of claims 1 to 3, wherein a flow direction of the cleaning liquid when the stirring means stirs the cleaning liquid is a vortex centering on a horizontal axis or a vertical axis. apparatus.   The stirring means includes a pump for feeding cleaning liquid, and the pump sucks the cleaning liquid in the cleaning tank and jets the sucked cleaning liquid into the cleaning tank from each of the spray nozzles. 5. The article cleaning apparatus according to claim 1, wherein the cleaning liquid is circulated between each of the spray nozzles and the cleaning tank.

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