JPS60254789A - Cleaning device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cleaning device that cleans one surface of an object such as a printed wiring board by moving in a predetermined direction on a brush rotating in a cleaning solution.

Conventional technology For example, printed wiring boards used in various electronic devices,
Flux is applied during manufacturing, but in order to improve quality when soldering several parts, cleaning is performed to remove the flux.

Conventionally, in this cleaning device, as shown in Fig. 3.4, a plurality of cylindrical rotating brushes 3a, 3b, 3c are installed in a container 5 filled with a cleaning liquid 6 such as fluorocarbon solution or trichloride.
, 3d are perpendicular to the direction of movement of the plate-shaped body 1, such as a printed wiring board, as indicated by the arrow A, to the rotation axis 4a.

4b, 4c, and 4a are arranged and rotated. The rotating brushes 3a to 3d have brushes 2 made of synthetic resin or the like planted at predetermined intervals along the outer walls perpendicular to the rotating shafts 4a to 4d, respectively. The rotating brushes 3a to 3d are rotated in the direction of arrow B (reverse direction is also possible), and the plate-like object 1 is sequentially transferred in the direction of arrow A on the conveyor 7, and the cleaning liquid 6 is scooped up with the rotating brushes 3a to 3d for cleaning. is being carried out.

Problems to be Solved by the Invention However, in this type of cleaning, the dirty matter removed from the plate-like body 1 by the rotating brushes 3a to 3d contaminates the cleaning liquid 6, and the dirty cleaning liquid 6 is returned to the plate-like body 1. 9. If the product is not cleaned completely, the cleaning ability will decrease as time goes on. Therefore, after cleaning a certain number of sheets, the remaining liquid must be replaced, and there is a disadvantage that replacing the cleaning liquid 6 requires time and money.

Also, even if the remaining liquid is replaced, the adjacent rotating brushes 3a
The problem is that stains between 3d and 3d are difficult to remove, and the stains increase rapidly.

SUMMARY OF THE INVENTION The present invention includes brushes that are spirally spaced at predetermined intervals and rotated to actively circulate cleaning liquid from one side to the other along the spiral brush. Further, the direction of the axis of rotation of the brush is arranged in a direction that intersects the direction in which the object to be cleaned is transported.

The working helical brush circulates cleaning fluid along the brush to remove dirt adhering to the brush. The cleaning liquid is also circulated within the container using brushes. Further, the direction of the rotational axis of the brush intersects with the direction of transport of the object to be cleaned, so that the brush is brought into even contact with the object, thereby cleaning the entire object evenly.

BEST MODE FOR CARRYING OUT THE INVENTION As shown in FIG. 1, an embodiment of the present invention comprises a rotary brush body 3a, a rotary brush body 3a, and brushes 2 made of synthetic resin or the like are helically implanted on the outer peripheral surface at predetermined intervals. 3b, 3c.

3d, and when this rotary brush is rotated, the rows of brushes 2 are provided so that they apparently move toward either the upper front or the rear. These rotating brushes 3a to 3d are connected to a plate-shaped body 1 by rotating shafts 4a to 4d in a container 5 filled with cleaning liquid 6.
For example, four brushes are arranged in parallel so as to intersect at a predetermined angle with respect to the transfer direction A of
It is rotated so as to move from a to 10d to rearward portions 13a to 13d. A plate-shaped body 1 such as a printed wiring board is moved on the upper surface of the rotating brush bodies 3a to 3d in a direction intersecting the rotation axes 4a to 4d of the brush bodies 3a to 3d at a predetermined angle as shown by arrow A. . In addition, a discharge pipe 9 for discharging the cleaning liquid 6 is provided at the rear 8 of the container 5, and the cleaning liquid 6 is heated to steam, and is connected to a lid device 11 that cools and condenses the liquid. A discharge pipe 12 for discharging cleaning liquid 6 is connected to 7. The brush bodies 3a to 3d are attached to the belt 13.
It is rotated by a motor etc. via the . In the case of Figure 1, arrow 1
It is rotated in directions 4a to 14d.

Now, the container 5 is filled with the cleaning liquid 6, and the rotating brush body 3a~
3d in the directions of arrows 14a to 14d, the brushes 2 of the rotating brush bodies 3a to 3d move toward the front 10a to 10d, so the rotating brush bodies 3a to 3d move the cleaning liquid 6 to the rear 13a to 13d. Ru. The cleaning liquid 6 passes through the discharge pipe 9, the lid 11, and the discharge pipe 12, returns to the container 5, and circulates again. Now, when the plate-shaped body 1 such as a printed wiring board is sequentially moved over the rotating brush bodies 3a to 3d as shown by the arrow A, the cleaning liquid 6 removes the dirt that has been washed on the plate-shaped body 1 by the rotary brush bodies 3a to 3d. is swept away to the rear 8 of the container as the rotating brushes 3a to 3d rotate. As a result, the cleaning liquid 6 is circulated within the container 5 along the brushes 2 of the rotating brush bodies 3a to 3d, so that dirty substances do not stagnate, and the possibility that the cleaning surface is soiled by the brushes 2 again can be reduced.

Further, if the discharge pipe 9, the lid device 11, and the discharge pipe 12 are attached as in the embodiment, the cleaning liquid 6 in the container 5 can be circulated and the lid can be removed. In this case, a special circulation device such as a pump is not required. Furthermore, since the axial directions of the rotating shafts 4a to 4d of the rotating brush bodies 3a to 3d intersect with the transport direction A of the object 1 to be cleaned at a predetermined angle, the cleaning surface of the object 1 is evenly contacted by the brush 2. Ru. In other words, when the axial direction of the rotating shafts 4a to 4d of the rotating brush bodies 3a to 3d is parallel to the transport direction A of the object 1, the rotating brush bodies 3a to 3
d is difficult to contact, and there is a risk of non-uniform cleaning.

FIG. 2 shows another embodiment of the invention. In FIG. 2, the same parts as in FIG. 1 are designated by the same reference numerals, and their explanation will be omitted. The difference is that the axial directions of the rotating shafts 4a to 4d are arranged at 90 degrees with respect to the transport direction A of the object 1 to be cleaned. Also, rotating brush bodies 3a to 3d
The spiral direction and rotational direction of the brush 2 are set to be opposite to each other between adjacent brushes. The direction in which the cleaning liquid 6 is circulated by the rotating brush bodies 3a to 3d is reversed. Therefore, the discharge pipe 9 and the discharge pipe 12 connected to the container 5 were reversed.

According to the one shown in FIG. 2, in addition to having the same effect as the case shown in FIG. This creates turbulent flow, which has the effect of making it possible to clean the brush 2 and the object 1 even more powerfully. The rotation of the rotating brush bodies 3a to 3d is transmitted by the rotational force of a motor using a belt, gears, or the like.

Effects of the Invention According to the present invention, since the brush 2 has a spiral shape and is rotated in a predetermined direction, the cleaning liquid 6 is actively circulated along the brush 2, thereby increasing the cleaning power of the brush 6 and the object 1. Can be done. In this case, if you combine a lid device and a filter device, you can always keep it clean without having to replace the cleaning liquid. Since the direction of the rotation axis of the brush bodies 3a to 3d and the direction of transport of the object 1 are arranged to intersect with each other, uniform cleaning can be performed.

[Brief explanation of the drawing]

Fig. 1 is a plan view of one embodiment of the present invention, Fig. 2 is a plan view of another embodiment of the invention, Fig. 3 is a plan view of a conventional example, and Fig. 4 is a sectional view of Fig. 3. , the position of the printed board is different from that in FIG. 2 is a brush, 3a to 3d are brush bodies, 6 is a cleaning liquid, 5 is a container, and ■ is an object to be cleaned. patent applicant

Claims (2)

[Claims] (1) In a cleaning device that cleans one surface of an object being transferred in a predetermined direction, a plurality of brush bodies each having brushes spirally arranged at predetermined intervals on the outer circumferential surface apply the brushes to a cleaning liquid contained in a container. The object is rotated by the brush so as to circulate the cleaning liquid from one side of the container to the other, and one side of the object is brought into contact with the brush in a direction opposite to the rotational axis of the brush body. A cleaning device characterized in that it is transported. (2) Claims characterized in that, in the plurality of brush bodies, one brush of the adjacent brush bodies has a spiral direction opposite to that of the other brush and a rotation direction opposite to that of the other brush body. The cleaning device according to item 1.