JPH0619568Y2 - Excessive adherence surface treatment liquid drop removal device for cubic objects - Google Patents

Description

[Detailed Description of the Invention] Industrial field of application The present invention is directed to an excess liquid deposited on the surface of an object to be processed after surface treatment using a liquid is applied to a cubic object to be processed such as an evaporator and a condenser for car coolers. The present invention relates to a device for dropping and removing a material.

Conventional technology Conventionally, in order to remove excess liquid adhering to the surface of a cubic object such as an evaporator or condenser for car coolers that has been surface treated with a liquid such as phosphoric acid chromate treatment, it is hung on a hanger. The air blow method that blows compressed air to the object to be processed, the impact method in which the worker taps the object to the edge of the processing tank after lowering it from the hanger, and the worker holds the object in his hand and shakes it several times It was based on the shake-off method.

However, according to the air blow method, when the thickness of the object to be processed is too large, the compressed air does not reach the end. Therefore, a high air pressure is required to secure a predetermined amount of liquid to be drained, and in that case, troubles such as harmful liquid becoming mist and scattering, or the object to be processed falling from a hanger that shakes occur. Further, according to the impact method, the surface of the object to be treated may be scratched and the surface may be dented in some cases. According to the swing-off method, the operator is easily tired when the object to be processed is large or heavy. Furthermore, in both the impact method and the shake-off method, a harmful liquid may be splashed on the worker, and the object to be processed slips off the hand, which often causes an unexpected accident.

The present invention has been made in view of the above situation, and by simply pulling up the object to be processed above the processing tank after the surface treatment, it is natural and safe without relying on air blow or manpower. It is another object of the present invention to provide a device for dropping and removing a surplus adherent surface treatment liquid for a cubical object to be processed, which is capable of removing and removing the surplus adherent surface treatment liquid.

Means for Solving the Problems In order to achieve the above-mentioned object, a device for removing surplus adherent surface treatment liquid of a cubic object according to the present invention has a hanger having a grid-shaped horizontal base and a grid-shaped horizontal base. And a holding frame having a wire net which is provided in a rising shape and receives three surfaces of the cubic object to be intersected in a three-dimensional inclined shape.

The surplus adherent surface treatment liquid drop removing device for cubic objects to be treated according to the present invention comprises a hanger having a lattice-shaped horizontal bottom stand,
Since the hanger is provided on the grid-shaped horizontal bottom stand in a rising shape and has a wire net that receives three surfaces of the cubic object to be intersected in a three-dimensional inclined manner, the hanger after the surface treatment is treated in the treatment tank. When pulled up, part of the liquid adhering to the object to be processed falls through the wire mesh below the hanger, while the remaining liquid has the object to be processed three-dimensionally inclined.
Collected in the corners at the lower end, they fall from the grid-shaped horizontal base to below the hanger, and all the treatment liquid is naturally removed.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

(1) is a hanger consisting of a stainless steel pipe with a diameter of 10 mm, and a horizontal outer frame part assembled in a square with a side of 75 cm.
(2), a main support frame part (3a) provided in the horizontal outer frame part (2) with a fixed interval, and four main support frame parts (3a) each, and four main support frame parts (3a).
It has a lattice-shaped horizontal base (6) consisting of a sub-supporting frame portion (3b) stretched between two outside of (a).

(4) is attached to the main supporting frame part (3a) and the sub-supporting frame part (3b) of the lattice-shaped horizontal bottom stand (6) in a rising manner and has three surfaces on which the cubic object (W) intersects. It is four holding frames having a metal mesh (7) that receives in a three-dimensional inclined shape. One holding frame (4) is constructed as follows. That is, the holding frame (4)
2 is a square surface ABGF surrounded by a stainless steel pipe having a diameter of 8 mm and covered with a stainless wire mesh (7), as shown in FIG. 2, provided with the same material as this surface and following the same surface. It is composed of two planes ABCD (long side: 20 cm, short side: 10 cm) and plane ADEF (same), which are orthogonal to each other. The point A, which is the lower end portion (5) of the holding frame (4), is fixed to the center portion in the length direction of the sub-support frame portion (3b), as shown in FIG. From each of the points C, G and E, legs (8) are vertically lowered on the main support frame (3a) and fixed to the frame (3a). The angle formed by the horizontal plane in contact with the point A and the ridge AF is 65 °, that formed by the horizontal plane and the ridge AB is 20 °, and that formed by the same plane and the ridge AD is 25.
It has become °.

Each of these holding frames (4) has a cubic object (W).
The evaporator of the car cooler is placed with its three intersecting surfaces in contact with the wire netting (7) on the above three surfaces of the holding frame (4).

The above angle was determined from the results of the following experiment. A car cooler condenser was used as a test sample. The dimensions are 59.2 cm in length and 3 in width.
It is 1.0 cm high and 4.8 cm high and weighs 3,85
0 g and its surface area is 6.72 m ² . Two such test samples were prepared, subjected to surface treatment using a predetermined treatment liquid under the same conditions, and then the drop amount of the surplus surface treatment liquid adhering to each sample was measured. That is, as shown in FIG. 4, the sample I was held in a state of being rotated upward by 30 ° from the horizontal plane with one ridge formed by the intersection of the surface having the largest area and the surface having the smallest area as the rotation axis. On the other hand, in Sample II, after the surface having the smallest area is placed on the horizontal surface as shown in FIG. 5, the angle formed by the surface having the largest area and the horizontal surface is 65 °, and the angle formed by the third surface and the horizontal surface. It was held in a state of being tilted around the point P so that the angle becomes 60 °. These 2 immediately after being pulled out from the processing liquid
The weight of one sample was 4,750 g. Therefore, the weight of the excess liquid attached was exactly 90
It was 0 g.

FIG. 6 shows the results of measuring how much the surplus adherent surface treatment liquid drops with the lapse of the holding time from these two test samples. According to the figure, sample II
In the case of No. 1, it can be seen that, after 60 seconds, the excess amount of the adhered surface treatment liquid of a little over 80% of the total amount was dropped and removed.

As a result of various experiments conducted by changing the angles shown in FIG. 5, the best results were obtained for the test samples at the angles shown in FIG.

According to the results of experiments in which the size and shape of the test sample were changed, the best excess adhered surface treatment solution drop removal was observed for the cubic object to be treated when the value was close to the above inclination angle.

Effect According to the device for removing surplus adherent surface treatment liquid drop of cubical object to be treated according to the present invention, when the hanger is pulled up above the treatment tank after the surface treatment, a part of the liquid adhered to the object to be treated is passed through the wire mesh to remove the hanger. While falling downward, the remaining liquid is collected in the corners at the lower end of the remaining liquid because it is three-dimensionally inclined, and falls from the grid-shaped horizontal base to below the hanger.
All treatment liquids can be removed naturally. Therefore, the excess adhered surface treatment liquid can be dropped and removed safely without being blown by air or manually.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention. FIG. 1 is a front view, FIG. 2 is a side view, and FIG. 3 is a plan view. FIG. 4 and FIG. 5 are schematic views showing the holding state of the test sample of the experiment related to the above-mentioned embodiment. FIG. 6 is a graph showing the relationship between the drop amount of the surplus adherent surface treatment liquid and the elapsed time in the same experiment. (1) …… Hanger, (4) …… Holding frame, (5) …… Lower end, (6)
…… Lattice-shaped horizontal base, (7) …… Mesh, (W) …… Cube-shaped object to be processed.

Claims (1)

[Scope of utility model registration request] 1. A hanger (1) having a grid-shaped horizontal base (6)
And a holding frame (4) having a wire mesh (7) which is provided on the lattice-shaped horizontal base (6) in a rising shape and receives three surfaces of the cube-shaped workpiece (W) intersecting with each other in a three-dimensional inclined shape. A device for dropping and removing surplus adherent surface treatment liquid of a cubic object to be treated.