JPH0543871Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a nozzle that spouts a fluid such as nitrogen gas or air (hereinafter simply referred to as air), and is used for draining and drying various products. It is an air nozzle.

[Prior art]

In general, an air nozzle for draining has a slit-shaped outlet and blows out room temperature or heated air from the outlet.

By the way, as shown in FIGS. 6 and 7, the conventional nozzle has a single slit-shaped outlet formed on the lower surface of the main body.

Furthermore, as another conventional technology,
As shown in Publication No. 61460, there is a nozzle that has two parallel slits, but in this case, the internal space and external shape of the nozzle body are a pipe with a circular cross section, and the cutting direction of the two slits is The structure was parallel.

[Problem that the invention attempts to solve]

As mentioned above, in the case of an air nozzle consisting of a single slit-shaped outlet, when air W2 is ejected (about 100 to 230 m/s) from the slit-shaped outlet 2 formed on the lower surface of the main body 1, the product 6 The water droplets adhering to the surface are blown away by the wind pressure of the air W2.

However, the distance between the product 6 and the main body 1 is usually 1~
Since the diameter is about 40 mm, some of the water droplets blown away by the wind pressure of the air W2 jump up and adhere to the vicinity of the lower surface of the main body 1.

When a predetermined amount of these splashed water droplets accumulate, the water droplets flow out in the direction of the arrow 8 in FIGS. 6 and 7, reach the position of the outlet 2, and are blown onto the product 6 by air W2.

Therefore, there was a problem that the product could not be completely drained.

Furthermore, even when forming two slits,
In the case of the one shown in Utility Model Application No. 55-61460, the internal space and external shape of the main body are circular in cross section, so compared to a rectangular parallelepiped main body, the pressure of the air ejected from the slit is weaker, and the slit is When the air inside the nozzle is ejected from the outlet, a large amount of outside air outside the nozzle is drawn in along the outer shape of the round nozzle, resulting in the flow direction of the air ejected from the nozzle becoming unstable and the air ejecting. There were problems such as lowering the pressure.

A technical object of the present invention is to provide an air nozzle for draining water that eliminates the above-mentioned problems.

[Technical measures taken to solve the technical problems of the invention]

The technical measures taken to solve the technical problem are: a pair of wide walls that face each other at the front rear of the main body, a pair of narrow walls that face the main body at the top and bottom positions, and a pair of narrow walls that face the main body at the left and right side positions. A pair of opposing side walls constitute a hollow box-shaped main body in which the internal space and external shape of the nozzle exhibit a rectangular parallelepiped shape, and an air introduction section is attached to the upper part of one wide wall of the main body, and the narrow wall located on the bottom of the main body is Two slit-shaped air outlets are formed at a predetermined interval on the wall surface, and one of the two air outlets, the first air outlet, is inclined in the direction in which the air diffuses in an expanded shape at its tip. The second outlet is formed as an inclined slit, and the other second outlet is formed as an orthogonal slit orthogonal to the narrow wall surface.

[Effect]

Since this invention has two slit-shaped outlets, the first stage of water removal is performed using air from one of the slanted outlets (the first outlet), and even if there are water droplets that jump up there, , it will be circulated at the first outlet, which is responsible for draining water in the first stage.
It does not jump up in the direction of the other outlet (second outlet).

In addition, the air from the orthogonal second outlet performs the second stage of draining, which is responsible for the final draining.
Draining in this second stage is performed with relatively few water droplets, so there is not much splashing up here, and even if some of the water splashes up, the water droplets are sucked into the air from the first outlet. It will end up being put away.

Furthermore, since the main body shape of the present invention is a hollow box shape with an internal space and an outer shape of a rectangular parallelepiped, the ejection pressure of the air ejected from the slit is stronger than that of a round main body (i.e., the present invention In addition, the air that flows in from the wide wall comes into contact with the wide wall at the facing position, bends downward, and heads toward the outlet formed in the narrow wall at the bottom, which rectifies the air and increases the pressure.) The amount of trapped air outside the main body is small (i.e., the four corners of this invention are bent at right angles, so the flow of trapped air is difficult to occur), and as a result, the directionality of the ejected air is reduced. and the jetting performance becomes better.

〔Example〕

To explain the present invention with reference to the drawings, Fig. 1 is a front view of the invention, Fig. 2 is a right side view of the invention, Fig. 3 is a bottom view of the same, Fig. 4 is a vertical sectional view of Fig. 1, FIG. 5 is a longitudinal sectional view of the conventional nozzle in use, and FIGS. 6 and 7 are longitudinal sectional views of the conventional nozzle in use.

Reference numeral 1 in the figure is a main body molded from metal such as stainless steel or hard synthetic resin, and two slit-shaped air outlets 2 and 3 are formed substantially parallel on the lower surface of the main body. (See Figure 3).

Reference numeral 4 indicates an air introduction portion, and 5a and 5b indicate fixing screw portions for fixing the main body in a predetermined position.

Further, reference numerals 10a and 10b indicate wide wall surfaces of the main body;
1a and 11b are narrow wall surfaces, 12a and 12b are side wall surfaces, and 13 is an internal space of the main body.

In Fig. 4, the wall thickness of the main body 1 is 1.5 mm,
The wind speed in the air introduction part 4 is 30 to 350 m/s,
The air volume is 50 to 500/mi, and the air outlets 2 and 3 are formed by laser cutting, etc., and their width is
0.1~1.0mm, length is about 10~150mm.

The two air outlets 2 and 3 are formed in the shape of parallel slits, but the opening directions of the air outlets 2 and 3 are widened as shown in FIG. The distance between these two outlets is the air W2, W3 from both outlets 2 and 3.
It is preferable to form it so that it does not intersect to the position where it touches the product 6.

The main body 1 is fixed at the desired angle, but as shown in Fig.
If you tilt it (approximately 15 degrees), the draining effect will be further improved. In the present invention, two outlets 2 and 3 are formed, and the first stage of draining is performed at the outlet 3.
Next, a second stage of draining is performed at the outlet 2. For this reason, some splashed water droplets 7 may adhere to the rear of the air outlet 3, but hardly any splashed water droplets adhere to the rear of the air outlet 2. This means that a considerable amount of water has been drained in the first stage of draining, and in the second stage of draining, which is accepted in that state, the problem of adhesion of splashed water droplets 7 does not occur. However, the water droplets are at the air outlet 3.
It will not be caught in the air W3 from the air W3 and attached to the main body 1.

[Effect of idea]

Therefore, with the present invention, even under the same wind speed and air volume conditions as before, water draining can be performed in two stages, so splashed water droplets will not adhere to the second stage outlet position, and perfect water draining can be performed.

In addition, since the present invention has a hollow box shape in which the internal space and external shape of the main body are rectangular parallelepipeds, the jetting pressure of air toward the outlet tends to be high, and in addition, the influence of external air entrainment near the tip of the outlet It has excellent effects such as being less susceptible to damage.

[Brief explanation of drawings]

Fig. 1 is a front view of the present invention, Fig. 2 is a right side view of the invention, Fig. 3 is a bottom view of the same, Fig. 4 is a vertical sectional view of Fig. 1, and Fig. 5 is a longitudinal sectional view of the device in use. FIGS. 6 and 7 are longitudinal sectional views of the conventional nozzle in use. DESCRIPTION OF SYMBOLS 1... Main body, 2, 3... Air outlet, 4... Air introduction part, 5a, 5b... Fixing screw part, 6... Product, 7... Water droplet, 8... Arrow, 10a, 10b...
...Wide wall surface, 11a, 11b...Narrow wall surface, 12
a, 12b... side wall surface, 13... internal space.

Claims (1)

[Scope of claim for utility model registration] A pair of wide wall surfaces facing the main body at the front and rear positions, a pair of narrow wall surfaces facing the main body at the top and bottom positions, and a pair of side wall surfaces facing the main body at the left and right side positions. The nozzle has a hollow box-shaped main body in which the internal space and external shape are rectangular parallelepiped, and an air introduction part is attached to the upper part of one wide wall of the main body, and an air introduction part is installed at a predetermined interval on the narrow wall of the lower face of the main body. forming two slit-shaped air outlets, one of the two air outlets, a first air outlet, being formed into an inclined slit whose tip is inclined in a direction in which the air spreads out; An air nozzle for draining water, characterized in that the other second outlet is formed into an orthogonal slit orthogonal to the narrow wall surface.