JPS6026251B2 - Relay cleaning device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a relay cleaning device for automatically cleaning the contacts of a relay in a semi-finished state.

As a related matter, a three-pot type cleaning device as shown in FIG. 4 is known as this type of cleaning device.

In the figure, reference numerals 1, 2, and 3 are first, second, and third cleaning liquid tanks that store cleaning liquid such as freon for cleaning relay contacts, and these first to third cleaning liquid tanks 1, 2
, 3, the relays are placed in the cleaning basket 4 as shown in FIG. 5, or the relays 7 are set in the sockets 6 of the exclusive pallet 5 as shown in FIG. 6, and the relays are washed while being immersed one after another. In the first bath 1, the relay is roughly cleaned with a cleaning liquid that has been subjected to ultrasonic waves by the ultrasonic vibrator 8, and in the second bath 2, medium cleaning is performed by simply immersing the relay in the cleaning liquid a, and in the third bath 3. Now, without immersing it in liquid a, by placing it in an atmosphere of vapor b of cleaning liquid a generated by heating with heater 9, such as Freon gas, the vapor b will adhere to the relay and condense, causing it to form on the surface of the relay body mechanism. The liquefied cleaning liquid is the third residue.
Finish cleaning is performed by dropping dirt on the surface.

The steam b from each of the above tanks, especially the third tank 3, is cooled by a condenser 11 consisting of a cooling water pipe installed on the upper part of the inner wall of the device, is liquefied and collected in a gutter 12, and flows into the second tank 2. .

The overflow liquid that overflows in the second tank 2 flows into the first tank 1, and the liquid that overflows in the first tank 1 enters the third tank 3 and repeats the cycle of being heated and vaporized. The cleaning liquid a in the first tank 1 is most contaminated, and in order to prevent this from adhering to the relay, the pump 13 and the filter 14 work to remove the filth and then return it to the tank 1. .

As is clear from the above configuration, the conventional device consists of three tanks, and each tank 1, 2, and 3 has a planar extent, which increases the size of the entire device and its installation area.

Also, put the relay into the washing basket 4 shown in Fig. 5, and
If cleaning is done internally, it requires manual labor, and if the special pallet 5 shown in FIG. For loading and unloading and attaching and detaching relay 7,
This method not only requires at least two workers on the loading and unloading sides of the pallet 5, but also has drawbacks such as high cost since the automatic conveyance device and the pallet are separate units. moreover,
If a relay or the like accidentally falls into tanks 1 to 3, it will be difficult to recover it, and the filth in the first tank will become liquid a.
If the dirt is floating on the surface of the relay, it is difficult to collect this dirt, and it has the disadvantage of adhering to the relay.

In the above configuration, the first dirt 1 has the same structure as the third dirt 3, and the second dirt 2 has the same structure as the first dirt 1. After roughly cleaning the filth, and then performing medium cleaning with cleaning solution a,
Although the same cleaning effect can be obtained by finishing cleaning the dirt adhering to the relay with the vapor b of the cleaning liquid a again, there are still the same drawbacks as in the case described above.

In order to improve the above-mentioned drawbacks, this invention sets a relay around a rotating drum partially immersed in a cleaning liquid tank,
It is an object of the present invention to provide a relay cleaning device that is small and compact and can reduce the number of workers required for cleaning relays by consolidating the relay cleaning process around this drum. purpose.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic sectional view showing an example of a relay cleaning device according to the present invention, in which reference numeral 21 denotes a rotating drum having a relay set part 22 made of a cylindrical panel on its periphery, and 23 a part of this drum 21 in a cleaning liquid a. This is a cleaning liquid tank that is soaked in water. A cleaning liquid vapor tank 24 is provided adjacent to this cleaning liquid tank 23 as shown in FIG. A steam flow path 25 for flowing steam to 21 is provided. Reference numeral 26 denotes a condenser consisting of a cooling water pipe for recovering the vapor d of the cleaning liquid that has passed through the relay set part 22 of the rotary drum 21 above the liquid level c, and is provided at the upper part 27 of the inner wall of the apparatus.

28 is a shower nozzle disposed opposite to the liquid level escape part 29 from the liquid level c of the cleaning liquid tank 23 in the rotating drum 21; Inject.

Further, the bottom surface 31 of the cleaning liquid tank 23 is formed into a tapered surface, and a collection odor 33 shaped like a storage basket for collecting the liquid that falls into the tank 23 is provided at the lower end 32 of this tapered surface. There is. 34 is a filter for receiving the overflow liquid f from the cleaning liquid tank 23; 35 is a pump for circulating the cleaning liquid a; 36 is a filter for filtering the cleaning liquid from the pump 35; .

In order to cause convection to the one-liquid filter 34 side, the pump 3
5 and the cleaning liquid that has passed through the filter 36 is passed through the cleaning liquid inlet 37
It is configured such that the waste flows into the waste 23 from the inside. 38 is a motor that rotationally drives the rotating drum 21; 39 is the drum 2;
This roller 39 is a roller for rotationally driving the roller 39.
The rotation of the motor 38 is transmitted via the transmission belt 40.

A relay 30 is installed in the relay set section 22 of the rotating drum 21.
A large number of holding odors 41 for holding current can be arranged in a circumferential manner, and relay holding plates 4 are arranged in correspondence with the holding odors 41.
2 is provided, and this plate 42 receives a spring force from a holding direction spring 43 of the relay 30. On the side surface of the rotating drum 21, a sliding brush 44 for energizing the three relays is set concentrically with the rotating shaft 50, and this brush 44 is in sliding contact with an electrode 45 facing it. In addition, in Figure 1,
46 is a gutter that collects the cleaning liquid liquefied by the condenser 26, 47 is an ultrasonic vibrator that is installed on the bottom of the cleaning liquid tank 23 and applies ultrasonic waves to the cleaning liquid a, i is a cleaning liquid vapor line,
In FIG. 2, 48 is a heater.

Next, the operation of the above configuration will be explained.

The rotating drum 21 receives power from a motor 38 through a roller 39, and is constantly rotating in the direction of arrow g. When the relay 3-0 is attached to the relay holding mechanism 41 attached to this drum, the rotation drum 21 is rotated at a position of 30 degrees from the top of the drum 21. The relay holding plate 42 automatically holds the relay from the rotated position.

After the drum 21 has rotated about 600 degrees, cleaning with steam d begins, and after it has rotated about 136 degrees, electricity is applied from the electrode 45 to the current collecting brush 44, turning the relay 30 ON and OFF. When the relay 30 starts operating, it enters the ultrasonic cleaning tank 23 at the same time, and the cleaning tank 23 enters the cleaning tank 23 at around 2250 rotations.
Get out of. When it rotates about 240 degrees, a shower h is started and steam cleaning begins, and when it rotates about 270 degrees, ON/OFF of the relay 7 stops.

Thereafter, the relay enters the drying process until it returns to the top of the drum 21. The vapor d evaporated in the steam tank 24 rises to the top of the cleaning tank 23, is liquefied in the condenser 26, and flows into the gutter 46.
It flows into the shower h and the cleaning tank 23.

The overflowing liquid f passes through the filter 34 to the steam tank 24.
flows into. The liquid a sucked up by the pump 35 from the cleaning tank 23 or the steam tank 24 is returned to each tank through a filter 36. However, when returning to the cleaning tank 23, the inlet 37
respect When the relay 7 or the like falls, it enters the relay recovery tool 33 along the chain's slanted bottom surface 31. Floating dirt accumulates in the filter 34. Note that the circulation system for cleaning liquid a is the third one.
As shown in the figure. As is clear from the above, since the cleaning liquid tank 23, the steam tank 24, and the condenser 26 are concentrated around the rotating drum 21, and a part of the rotating drum 21 is immersed in the cleaning liquid tank 23, the direction of rotation of the rotating drum 21 is The relay 30 can be roughly cleaned and finished cleaned by the steam d from the steam tank 24 before and after, and medium cleaning can be achieved by the cleaning liquid a in the cleaning liquid tank 23. is relay 3
Since it serves both as cleaning and transporting the relay, the entire relay cleaning device can be made smaller and more compact, and its installation area can also be reduced.

Further, if there is only one worker at the top of the rotating drum 21, the relays 30 can be set and removed, thereby reducing the amount of manpower required.

Furthermore, the bottom surface 31 of the cleaning liquid tank 23 is formed into a tapered surface,
The collection tool 33 at the bottom of the container makes it possible to easily collect items that have fallen into the waste 23 or the like.

In addition, the circulating cleaning liquid by the pump 35 causes the liquid surface c of the rice cake 23 to convect toward the filter 34 side.
Because floating dirt on the liquid surface can be collected smoothly,
It is possible to prevent dirt from adhering to the relay 30 during cleaning.
Furthermore, the surface c of the cleaning liquid tank 23 in the rotating drum 21
The cleaning effect of the relay 30 can be enhanced by arranging the shower nozzle 28 facing the liquid level escape part 29 and spraying the cleaning liquid shower h from this nozzle 28 to the relay set part 22. However, this shower nozzle 28 does not necessarily need to be arranged.

As described in detail above, the present invention can provide a small and compact tray cleaning device that requires less installation space and requires fewer workers at reduced costs.

[Brief explanation of the drawing]

Fig. 1 is a schematic sectional view showing an example of a relay cleaning device according to the present invention, Fig. 2 is a sectional view taken along line 2-2 in Fig. 1, Fig. 3 is a cleaning fluid circulation system diagram, and Fig. 4 is a conventional example. Figure 5 is a cross-sectional view of the relay cleaning basket used in the follower device, Figure 6 is a perspective view of the relay cleaning basket used in the follower
The figure is a perspective view of a conventional dedicated pallet. 12... Rotating drum, 22... Relay set section, 23.
...Cleaning liquid tank, 24...Steam tank, 26.
... Condenser, 28 ... Shower nozzle,
29...Liquid level escape part, 31...Nurper surface, 33...Relay collection odor, 34...
Filter, 44... Current collector brush, 45... Electrode. Figure 2, Figure 3, Figure 4, Figure 5, Figure 6

Claims (1)

[Scope of Claims] 1. A rotating drum having a relay set portion on its periphery;
A cleaning liquid tank that stores cleaning liquid to immerse a part of the rotating drum, a steam tank that allows the cleaning liquid vapor to escape from the liquid level in the cleaning liquid tank to the rotating drum, and a cleaning liquid vapor that passes through the relay set part of the rotating drum. A relay cleaning device characterized by comprising a recovery condenser. 2. The relay cleaning device according to claim 1, further comprising a shower nozzle that injects the cleaning liquid to the relay set in the relay set part, facing the liquid level escape part of the rotating drum that has escaped from the liquid level of the cleaning liquid tank. . 3. The relay cleaning device according to claim 1 or 2, wherein the bottom surface of the cleaning liquid tank is formed into a tapered surface, and a collecting tool such as a relay that has fallen into the tank is provided at the lower end of the tapered surface. . 4. Claims 1, 2, or 3, comprising a filter for receiving overflow liquid from a cleaning liquid tank, and a cleaning liquid circulation device for causing convection of the liquid level in the tank toward the filter. The relay cleaning device described. 5. Claims 1 and 2, in which an electrode is provided concentrically facing the rotating drum, and a sliding brush is provided on the drum for slidingly contacting the electrode and energizing a relay on the rotating drum. The relay cleaning device according to item 1, 3 or 4.