JPS6337110Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a cleaning device for cleaning various electronic devices such as printed circuit boards or various relatively small parts.

BACKGROUND OF THE INVENTION Generally, cleaning devices using cleaning agents such as trichlorethylene, trichloroethane, and fluorocarbons are used to clean various electronic devices such as printed circuit boards and various relatively small parts. These cleaning devices consist of a combination of a steam tank that fills the tank with steam by boiling the cleaning agent, an ultrasonic cleaning tank that performs ultrasonic cleaning, and an immersion tank that performs cleaning by immersion. It is customary to When the cleaning agent vapor generated from the steam bath rises to a certain height required for steam cleaning, it is stopped by a suitable method, such as a cooling pipe, to form a vapor layer.

A conventional three-tank cleaning device including an ultrasonic cleaning tank, an immersion tank, and a steam tank is shown in FIGS. 5 and 6. In this figure, cleaning baskets 61 to 67 containing items to be cleaned are carried in by a belt conveyor 7a, and are installed at the lower end of the conveyor arm 81 of the conveyor 8 at the position of the cleaning basket 62 in FIG. It is hooked to the attached hook 9 and hoisted up. Transport arm ~81~
The guides 84 are raised and lowered along the guide rods 8b, and the transport arms 81 to 84 are raised and lowered by the chain 10. The chain 10 is driven by the first reversible motor 14, and driving force is transmitted to the chain 10 by the chain 18 and the upper rotating shaft 11. When the lowermost end of the lifted cleaning basket 62 reaches a position higher than the upper end of the steam cleaning tank 5, further elevation is stopped. Although not shown, this stop is performed using a relay, micro switch, or the like. At the same time that the transport arm 81 lifts up the cleaning basket 62, the transport arms , , 82 to 84 also lift up the cleaning baskets 63, 64, and 65, respectively. And all washing baskets 62, 63, 64, 6
5 are lifted up until their lower ends are higher than the upper end of the steam cleaning tank 5 and stop rising,
In this state, the conveyor 8 is transferred to the belt conveyor 7 on the unloading side.
Move horizontally towards 6 (to the right in the drawing). Although not shown, this horizontal movement is performed by a second reversible motor. When the horizontal movement is completed, the cleaning basket 66 has already been carried out to the right in the drawing by the belt conveyor 7b. The horizontal distances l between the cleaning baskets 62 to 65 are equal, and the conveyor 8 reciprocates between the position shown in FIG. Repeat horizontal movement. Therefore, after the conveyor 8 completes moving by a horizontal distance l in the direction of the belt conveyor 7b on the discharge side, the conveyor arms 81 to 84 are lowered by the drive of the first reversible motor 14, and the conveyor arms 8
When the washing basket 65 suspended from the washing basket 4 descends onto the belt conveyor 7b for carrying out, the descent stops, and all the washing baskets 62-65 are removed from the hooks 9 of the transport arms 81-84. The washing basket 65 is carried out to the right on the carrying-out belt conveyor 7b. The other cleaning baskets 62 to 64 are delivered into the ultrasonic cleaning tank 2, the immersion tank 3, and the steam tank 4, respectively, and are subjected to ultrasonic cleaning, immersion cleaning, and steam cleaning, respectively. During the cleaning, the transport arms ~81~84 from which the cleaning baskets 62~65 were removed
is raised by the drive of the first reversible motor 14,
After the lifting is completed, the second reversible motor horizontally moves a distance l toward the belt conveyor 7a on the carry-in side, stops, and returns to the state shown in FIG. Also, the first reversible motor 14
All transport arms ~81~8 are driven by
4 descends, and the cleaning basket 61 which is about to be cleaned and the cleaning baskets 62 to 6 which have been cleaned
Hook 4 to hook 9 and lift it up. Thereafter, the same process is repeated, and the washing baskets 61 to 64 are sequentially sent to the belt conveyor 7b on the discharge side. Conventionally, in this conventional device, the vapor of the cleaning agent 1 generated by the steam tank 4 forms a vapor layer 5a in the steam cleaning tank 5. However, for safety or economic reasons, it is stopped at a certain height, that is, at the level A shown in FIGS. 5 and 6, by using a cooling pipe or other suitable method. However, in the conventional device, the cleaning baskets lifted by each transport arm must be transported beyond the upper end of the wall surface of the steam cleaning tank 5, and in this case, all the cleaning baskets must be transported above the upper end of the steam cleaning tank 5. You will end up appearing in However, when the objects to be cleaned that have been cleaned in the ultrasonic cleaning tank 2 and the immersion bath 3 leave the steam layer 5a and are exposed to the atmosphere, the cleaning effect decreases, and there is also the drawback that stains due to dirt etc. may adhere to the objects to be cleaned. .

Means for Solving the Problems The present invention has been made in view of this, and the present invention has been developed by using two lift compensation conveyance arms each equipped with a lift compensation device instead of the conventional conveyance arm. The arms 85 and 86 are the same, and a front view of the main parts of the rise correction devices 87 and 88 is shown in FIG. 3, and a right side view is shown in FIG. 4. In this figure, the same parts as in the conventional example are given the same reference numbers. The arm 85 has a linear motion mechanism rack 10.
A motor 101 with a motor 2 is fixedly mounted, and a rack 102 for linear motion is connected to an arm 85.
It is fixedly attached to the hook mounting base 103 by passing through a hole provided in the center of the lower part. Therefore, the rack 102 passes through the motor 101 and performs a reciprocating linear movement up and down. The arm 85 has a guide 104
A guide rod 105 is fixed and installed vertically, and two more guide rods 106 are installed parallel to these two guide rods 105 and fixed perpendicularly to the hook mounting base 103. A guide 107 is fixedly attached. Guide rod 105 slides in a hole provided in guide 107, and guide rod 106 slides in a hole provided in guide 104. Therefore, the washing basket can be raised and lowered under the arm 85. 108 is fixed perpendicularly to the arm 85, and the guide rod 105
It is a fixed frame that supports the end of the Since these rise correction devices 87 and 88 are configured as described above, the rise correction transfer arms 85 and 86 equipped with these rise correction devices 87 and 88 move from the ultrasonic cleaning tank 2 to the immersion tank 3, respectively. , and when moving horizontally from the immersion tank 3 to the steam tank 4, each arm 81, 85,
When 86 and 84 rise, each rise correction device 87 and 88 of rise correction conveyance arm 85 and 86
By operating the motor 101, each hook mounting base 103 can be lowered to such an extent that the cleaning basket in the ultrasonic cleaning tank 2 and the immersion tank 3 does not come out above the level A of the steamer 5a.

Effects of the invention Since the objects to be cleaned in the cleaning basket do not come out of the steam tank in the steam cleaning tank and are exposed to the atmosphere, the cleaning effect will not deteriorate and the objects to be cleaned will not be stained with dirt or other stains.

[Brief explanation of the drawing]

Fig. 1 is a front view of the entire cleaning device, Fig. 2 is a side view of the same, Fig. 3 is a front view of main parts, Fig. 4 is a side view of the same, Fig. 5 is a known front view, and Fig. 6 is a front view of the entire cleaning device. FIG. 6 is a side view of FIG. 5; 85, 86 are lift correction transfer arms, 87, 88
101 is a motor, 102 is a rack, 103 is a hook mounting base, 104, 107
1 is a guide, 105 and 106 are guide rods, and 108 is a fixed frame.

Claims (1)

[Scope of utility model registration request] A plurality of cleaning tanks for cleaning objects to be cleaned with a cleaning agent; and a common steam cleaning tank located above the plurality of cleaning tanks and cleaning the objects to be cleaned with vapor of the cleaning agent. A cleaning device comprising: a transport arm for transporting the object to be cleaned from outside the steam cleaning tank into the inside of the steam cleaning tank and the plurality of cleaning tanks located below the steam cleaning tank; Except for the transport arm that transports the object to be cleaned to the outside of the plurality of cleaning tanks located at the lower part, the transport arm that transports the object to be cleaned between the internal cleaning tanks is connected to the transfer arm that transports the object to be cleaned between the cleaning tanks. A cleaning device characterized in that it has a lift correction transfer arm that is provided with a lift correction device that lowers it into a steam tank in a cleaning tank.