JPH07106346B2 - Ultrasonic cleaning equipment - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic cleaning device, and more particularly, to an ultrasonic vibration device used in a cleaning process in manufacturing electronic devices and the like.

Conventional technology Conventionally, in the manufacturing process of precision machinery and electronic equipment, there is a cleaning process of immersing parts in a solvent subjected to ultrasonic vibration to remove debris and shavings from the surface. Is composed of a plurality of steps such as solvent preliminary cleaning, cold bath cleaning, steam cleaning and the like.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention By the way, as described above, the cleaning step is composed of a plurality of steps, and normally, the cleaning tank is filled with a dangerous organic solvent when it is directly touched by a human body. There has been a demand for the development of a device that can be realized without human intervention. However, at present, there has not been provided an apparatus that sufficiently satisfies the needs in terms of safety, productivity and durability.

Means for Solving the Problems The present invention provides a loader unit having an elevating mechanism for hoisting and holding a jig in a horizontal state in which an object to be cleaned is sandwiched, an elevating case and a fixed case for accommodating the jig. The cleaning case is arranged so that the elevating case moves up and down inside and outside the cleaning tank, and the fixed case is fixed to the cleaning tank in a plurality of juxtaposed cleaning tanks. An unloader section having a transfer mechanism for storing the tool in the case body, changing its direction, and holding it horizontally, and a claw member hung and supported at a position facing the cleaning tank, and above the cleaning processing section. From an elevating frame arranged to be vertically movable, a feeding frame for intermittently moving the elevating frame in the horizontal direction via a lateral feeding mechanism, and a carrying mechanism for carrying the jig unloaded from the unloader section into the loader section. Consisting of The problem is solved by providing a sound wave device.

Effect In the ultrasonic cleaning apparatus of the present invention, the jig holding the object to be cleaned is sequentially stored in the plurality of cleaning tanks arranged side by side in the side wall and sequentially transferred while being housed in the elevating case and the fixed case and escaping. Therefore, it is possible to automate the cleaning process including a plurality of processes. Further, the jig transport mechanism allows a large number of objects to be cleaned to be continuously processed with only a fixed number of jigs.

Embodiment An embodiment of an ultrasonic cleaning apparatus according to the present invention is shown in FIGS.
It will be described with reference to FIG. In the figure, (1) is a loader section arranged on the carry-in side of the cleaning chamber (2), and (3) is an object to be cleaned, for example, a printed wiring body (4) on which electronic parts are mounted. With the jig, use two pairs of recesses (3a) (3
a) (3b) (3b) is formed. (5) is a conveyor for carrying in the jig (3) in a horizontal state, and (6) is an elevating mechanism for hoisting and holding the jig (3) in a horizontal state. 6a) (6a), a pair of claw members (6b) (6b) attached to a part of this chain (6a) (6a), and a drive source (6c) for driving the chain (6a) (6a) Composed of. The claw members (6b) (6b) hook the outer pair of recesses (3b) (3b) of the jig (3) to suspend and hold the jig (3) in a vertical state. (7) is a cleaning processing unit in which a plurality of (six tanks in the figure) cleaning tanks (7a) to (7f) are juxtaposed in series. The cleaning tanks (7a) to (7f) are, for example, (7a) are jets. Cleaning tank, (7b) steam cleaning tank, (7c) jet cleaning tank, (7d) jet cleaning tank, (7e) injection cleaning tank,
(7f) is a steam cleaning tank. These 6 tank type cleaning tanks (7
The periphery of a) to (7f) is surrounded by the side wall (8) so that the vaporized organic solvent in the side wall (8) does not leak to the other space of the cleaning chamber (2). (9) (9) is an elevating case that is vertically movable in the cleaning tanks (7a) and (7f) at both ends, that is, the jet cleaning tank (7a) and the steam cleaning tank (7f), and is a vertically extending pair. The upper ends of the case bodies (9b) and (9b) are attached to a part of the chains (9a) (9a). (Ten)
(10) ... are fixed cases fixedly held in the cleaning tanks (7b) to (7e) other than both ends. (11) is an unloader unit arranged on the carry-out side of the cleaning chamber (2), and (12) is a transfer mechanism that changes the direction of the vertically processed jig (3) and horizontally holds it, one end of which is Rotatably attached to the plate (12a), a first cylinder (12b) arranged on the upper surface of the plate (12a), and a case body (12c attached to the rod tip of the cylinder (12b). ) And a second cylinder (12d) having a rod tip attached to substantially the center of the lower surface of the plate (12a). (13) (1
3) is a feed roller for feeding the jig (3) held horizontally. (14) is an elevating frame which is arranged above the cleaning processing section (7) so as to be able to ascend and descend, and (15) (15) ... are the cleaning tanks (7a) to (7f) of the elevating frame (14). Claw members that are hung and supported at opposite locations. Claw members at both ends (15)
(15) is directly attached to the lifting frame (14),
Claw members (15) (15) other than both ends are protruding frames (14
It is attached to the lifting frame (14) via a). 6
In the case of the tank type, the claw members (15) (15) ... Are attached at seven positions. Further, the concave portions (15) of the claw members (15) (15) are
As shown in the enlarged view of FIG. 2, a) is formed by inclining by a predetermined angle θ °, and the jig (3) is guided by this inclination and is suspended and held substantially vertically. (16) is a lateral feed mechanism (17)
Is a feed frame for intermittently moving the elevating frame (14) in the horizontal direction via the elevating frame (14), and the elevating frame (14) can be raised and lowered via rods (16a) (16a) ... Are integrally arranged in the. The lateral feed mechanism (17) has a first lever (17a) whose one end is rotatably attached to a part of the feed frame (16), and one end of which is rotated to the other end of the lever (17a). Second movably connected
(17b) and a drive source (17c) attached to the other end of the lever (17b). (18) is a transport mechanism for loading the jig (3) unloaded from the unloader section (11) into the loader section (1) and is movably arranged on the loading and unloading sides via chains (19) and (19). The conveyors (18a) and (18b) are provided, and the conveyors (18c) that connect the conveyors (18a) and (18b) to each other and convey the jig (3).

Next, an operation example of the 6-tank type ultrasonic cleaning device (20) having the above configuration will be described with reference to FIGS. 4 to 22. First, as shown in FIG. 4, the horizontal jig (3) holding the printed wiring body (4) is carried in to a fixed position by the carry-in conveyor (5). Next, as shown in FIG. 5, the jig (3)
The hooks (6b) (6b) are hooked on the pair of recesses (3b) (3b) on the outside of the jig, and in this state, the hooks (6b) (6b) are raised to the uppermost end, thereby the jig (3) And hold it down. Then, as shown in FIG. 6, the elevating frame (14) is lowered to the lowermost end, and then the pair of concave portions (3a) (3a) inside the jig (3) are provided with end claw members (15) ( 15).
In this state, the elevating frame (14) is raised to the uppermost end as shown in FIG. At this time, the lower end of the jig (3) is located higher than the side wall (8). Next, as shown in FIG. 8, the feed frame (16) is intermittently moved in the horizontal direction,
When the jig (3) on the loader section (1) is transferred to just above the jet cleaning tank (7a), the elevating case (9) rises to the uppermost end as shown in FIG. Then, as shown in FIG. 10, when the lifting frame (14) is lowered to the lowermost end, the jig (3) suspended from the claw members (15) (15) is stored in the lifting case (9). In this state, the claw members (15) (15) are removed from the recesses (3a) (3a) of the jig (3). next,
As shown in FIG. 11, when the elevating frame (13) is raised to the uppermost end and the elevating case (9) accommodating the jig (3) is lowered to the lowermost end, the jet cleaning tank (7a) is placed. The jig (3) is stored through the lifting case (9).
Further, as shown in FIG. 12, the feed frame (16) is intermittently moved in the horizontal direction and returned to the initial position, and when the jig (3) is newly loaded to the fixed position in this state, the same as above. The above operation is repeated, and as shown in Fig. 13, the jig (3)
(3) ... Are sequentially transferred to the cleaning tanks (7a) to (7f).
Then, as shown in FIG. 14, the jig (3) transferred to the final tank, that is, the steam cleaning tank (7f), raises the lifting case (9) and lowers the lifting frame (14). It is delivered to the end claw members (15) (15). Next, as shown in FIG. 15, when the lifting case (9) is lowered and the lifting frame (14) is raised, the jigs (15), (15), ... 3)
(3) ... is suspended and held in a series. And
The jig (3) of the final steam cleaning tank (7f) is transferred onto the transfer mechanism (11) of the unloader section (10) by intermittently moving the feed frame (16) horizontally as shown in FIG. To be done. When the case body (12c) of the first cylinder (12b) is raised in this state and the lifting frame (14) is lowered as shown in FIG. 17, the jig (3) is attached to the case body (12c). It is stored. Then, as shown in FIG. 18, the jigs (3) (3) are removed from the claw members (15) (15), the lifting frame (14) is raised, and the case body (9b) is lowered. Let Then, as shown in FIG.
When the rod of the cylinder (12d) is retracted, the vertically held jig (3) of the unloader part (11) is turned to the horizontal state, and the delivery roller (13) causes the delivery platform on the delivery side to move. (18b) It is carried to the top. After removing the printed wiring body (4) from the jig (3) in this state,
As shown in FIGS. 20 to 22, the jig (3) on the transfer table (18b) is mounted on the transfer table (1) on the loading side via the conveyor (18c).
8a) It is loaded on top. By repeating the above-mentioned operation, a large number of printed wiring bodies (4) (4) ... are continuously transferred to the cleaning tanks (7a) through a fixed number of jigs (3) (3).
It is possible to transfer to (7f).

It should be noted that the dimensions, materials, shapes, relative positions, etc. of the components described in the above embodiments are not intended to limit the scope of the present invention to these unless otherwise specified.

EFFECTS OF THE INVENTION According to the ultrasonic cleaning apparatus of the present invention, it is possible to realize automation of a cleaning step including a plurality of steps and a dangerous work with a single apparatus. Moreover, since a large number of objects to be cleaned can be continuously processed with a fixed number of jigs, the productivity can be remarkably improved, and a device having excellent safety and durability can be provided.

[Brief description of drawings]

1 is a schematic plan view showing an ultrasonic cleaning apparatus according to the present invention, FIG. 2 is a schematic front view of FIG. 1, FIG. 3 is a schematic side view of FIG. 2, and FIGS. 20 is a schematic front view for explaining the operation of the ultrasonic cleaning apparatus, and FIGS. 20 to 22 are schematic side views for explaining the operation of the ultrasonic cleaning apparatus. (1) …… loader section, (3) …… jig, (4) …… object to be cleaned (printed wiring body), (6) …… elevating mechanism, (7) …… cleaning processing section, (7a) ~ (7f) …… Cleaning tank, (9) …… Lift case, (10) …… Fixed case, (11) …… Unloader, (12) …… Transfer mechanism, (12c) …… Case body, ( 14)
...... Lifting frame, (15) …… Claw member, (16) …… Feed frame, (17) …… Horizontal feed mechanism, (18) …… Transport mechanism, (20) …… Ultrasonic cleaning device.

Continuation of the front page (56) Reference JP-A-53-62365 (JP, A) JP-A-60-82512 (JP, A) JP-A-62-121128 (JP, A) JP-A-2-63119 (JP , A) JP-A-55-157280 (JP, A) JP-A-59-219985 (JP, A) JP-A-58-104823 (JP, A) Actual development S50-47180 (JP, U) Actual development 61-106388 (JP, U) JP-B-45-40764 (JP, B1)

Claims (1)

[Claims] 1. A loader section having an elevating mechanism for hoisting and holding a jig in a horizontal state in which an object to be cleaned is clamped,
Cleaning in which a lifting case and a fixed case for accommodating the jig are arranged side by side in a plurality of cleaning tanks arranged so that the lifting case moves up and down inside and outside the cleaning tank and the fixed case is fixed in the cleaning tank. A processing unit, an unloader unit equipped with a transfer mechanism that stores a hanging jig that has been cleaned in a case body, changes its direction, and horizontally holds it, and a claw member that is hung and supported at a position facing the cleaning tank. And a lifting frame disposed above the cleaning processing section so as to be lifted and lowered, a feed frame for intermittently moving the lifting frame in the horizontal direction via a lateral feed mechanism, and a jig carried out from the unloader section. An ultrasonic cleaning device, comprising: a transfer mechanism that loads a tool into a loader section.