JPS63248464A - Nozzle header for two fluids - Google Patents

Abstract

PURPOSE:To facilitate the replacement of a nozzle header with a spare header even if the nozzle is clogged by integrally bonding a first header and a second header for conducting air and liquid. CONSTITUTION:The first header 31, the second header 32 fitted to the rear side of the first header 31 and a nozzle introduction member 35 perforating the first header 31 are provided. When air is introduced into any one of the first header 31 and the second header 32 and liquid is introduced into the other header, these are passed through the member 35, mixed and ejected from a nozzle N. When the nozzle N is clogged, a header 3 is taken off under guide of a slide guide 36 and the clogged nozzle N is replaced with a fresh nozzle or replaced with a spare nozzle header 3. By such a way, even if the nozzle N is clogged, it is easily replaced with the spare nozzle and also the lightweight and compact nozzle header 3 can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION A. Industrial Field of Application The present invention is a two-fluid device used in a nozzle that sprays a mixture of air and various processing liquids onto the surface of a strip to be processed, such as a steel plate strip, plastic, or paper. Regarding nozzle headers.

B. Prior art As an example of this kind of conventional technology, for example, Japanese Patent Laid-Open No. 51
- A pair of spangle erasing devices are installed in a casing having a passage for a steel plate strip passing through a plating bath and proceeding from bottom to top, facing each other with the strip in between, as shown in Japanese Patent No. 137628. . However, in the lever device, an air header and a water header which are long in the width direction of the strip are installed at intervals vertically, and a large number of branch pipes extending vertically between these headers are provided at equal intervals in the width direction of the strip. , a nozzle was attached to each of these branch pipes.

C0 Problems to be Solved by the Invention In the conventional technology described above, the nozzles are installed at small intervals, so it is extremely troublesome to replace the nozzles when they become clogged. This nozzle replacement is carried out by slowing down the advancing speed of the strip, which not only reduces work efficiency, but also results in defective products, and creates an extremely poor work environment as water vapor is blown out from the nozzle. there were.

Moreover, it was a large-scale device that required a lot of materials, and its weight increased accordingly.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and provide a lightweight and compact nozzle header that can be easily replaced with a spare one even if the nozzle becomes clogged.

D0 Problems to be Solved by the Invention In order to solve the above problems, the structure of the present invention is as follows. That is, a first header that is long in the width direction of the strip to be processed, an r:A2 header that is attached to the rear side of the first header and is long in parallel thereto, and a plurality of the headers are provided at equal intervals in the length direction. , a nozzle introduction member having a liquid path and an air path and fixed to penetrate the first header in the front-rear direction, and air is introduced into one of the first and second headers, and liquid is introduced into the other. This is what I did.

E1 Effect When air is introduced into either the first or second header and liquid is introduced into the other, they are mixed and injected from the nozzle through the nozzle introduction member. And if the nozzle gets clogged,
If the header is removed and the clogged nozzle is replaced with a new one, the spare nozzle header can be immediately installed in its original position.

F. Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings, taking as an example a nozzle header for a spangle erasing nozzle made of hot-dip plated steel plate.

4 and 5 show a spangle eliminating device B equipped with the nozzle header 3 of the present invention. The steel plate strip A progresses from bottom to top as shown by the arrow, and a pair of erasing devices (only one set is shown in the figure) is installed between the steel strips A and above the drain receiver 2 provided at the bottom of the casing 1. be equipped. Also shown are a plurality of erasing nozzles N provided at equal intervals in the strip width direction and lugs 3 to the nozzles to which these are detachably attached.

Now, as shown in FIGS. 1 to 3, the nozzle header 3 is attached to the rear side (the side opposite to the strip) of the air header 31, which is the first header that is long in the width direction of the strip A. It has a parallel long second header lug 32 to the liquid. A tube connection port 33, 34 is provided at one longitudinal end of each of the headers, and these are oriented parallel to the one end in the longitudinal direction of the header. A plurality of nozzle introducing members 35 are fixed to the air header 31 at equal intervals in the length direction of the header, passing through the air header in the front-rear direction (direction perpendicular to the strips). This member 35 has a cylindrical shape and has a liquid passage 35a penetrating in the front and back direction on its central thin line, a nozzle N is detachably attached to the tip thereof, and the rear end is opened to the liquid header 32. There is. Further, a plurality of air passages 35b are provided around the outside of the liquid passage 35 at equal intervals on the circumference near the connection portion of the nozzle N. A slide guide 36 is provided that guides and supports both the headers so as to be slidable in their length directions. That is, the irregularly shaped channel steel main body 36a
The header is supported via a rail 36e on a lower wall 36b, which is a web, and is positioned and guided in the front-rear direction between a front wall 36c, which is a class 7 run, and a rear wall 36cl, which is a class 7 run.

Next, as shown in FIGS. 4 and 5, the header 3 is fixed via a bracket 5 to a horizontal header support rod 4 parallel to the strip, and is pressed down from above by a header fixing arm 6. Both ends of the support rod 4 are rotatably supported by a rod receiving plate 7.

The nozzle advancing/retracting part 8 for moving the nozzle N forward and backward with respect to the strip has a rectangular horizontal sliding plate 8a on which the rod receiving plate 7 is erected, and is supported so as to be slidable in the front and rear directions on the upper surface of the horizontal substrate 8b. , a horizontal guide rod 8j that is long in the front and back direction.
A nut member 8d is fixed to the upper surface of the slide plate 8a, and a guide pin 8h is suspended from the lower end surface of the nut member. This pin 8h is guided so as to pass through a slit 8c in the substrate and move in the front and back direction. A nozzle advance/retreat screw 8e extends horizontally in the front-rear direction and is rotatably supported by a bearing plate 8f at both ends so as to be screwed into the nut member and move it forward and backward, and one end thereof protrudes through the casing 1. It is rotated by a handle not shown.

Note that 88 is a cap with an opening where the handle is attached. *A protective bellows tube 81 is provided between the bearing plate 8f and the nut member 8d to cover the periphery of the threaded pongee 8e to prevent mist from adhering to the threaded shaft.

Next, the nozzle angle adjustment section 9 that adjusts the angle of the nozzle N with respect to the strip has an angle adjustment lever 9a fixed to one end of the header support rod 4, and a nozzle angle setting plate 9C that stands up from the slide plate 8a. The adjustment is made by inserting bottles (not shown) into the bottle holes 9b and 9d provided in the lever 9a and setting plate 9C, respectively.

Next, the operating state will be explained above. air header 31
When air and liquid are introduced into the liquid header 32, they pass through respective passages of the nozzle introducing member 35 to the nozzle N.
is mixed at and sprayed towards strip A. If a part of the nozzle is now clogged,
3.34 is separated, the header 3 is pulled out in the longitudinal direction under the guidance of the slide guide 36, and replaced with a spare header.

To adjust the distance of the nozzle N to the strip, attach a handle to the tip of the threaded pongee 8e in the nozzle advance/retreat section 8 and rotate it, the nut member 8d will advance or retreat relative to the strip, and at the same time the slide plate 8a will move. The header support rod 4 moves forward and backward. The header 3 moves forward and backward together with the header 3, thereby making it possible to adjust the distance.

Next, to adjust the angle of the nozzle N, operate the nozzle angle adjustment section 9, rotate the lever 9a, and rotate the angle setting plate 9c.
This is done by changing the fitting position of the bottle.

Here, the header is supported by a slide guide that guides it slidably in the length direction, so even if the nozzle becomes clogged, the header can be immediately removed and the nozzle replaced or replaced with a spare header. In addition, since one tube connection port is provided at one end of each header, there are fewer tube joints, which greatly improves assembly efficiency and reduces the number of fluid leakage points.

Note that when the header is long, a connecting plate may be provided in the middle, and pipe connection ports may be provided at both ends of the header.

G. Effect As described above, in the present invention, the first header and the second header for guiding air and liquid are integrally connected, so even if the nozzle becomes clogged, the header can be removed and replaced with a nozzle or a spare header can be used. can be easily replaced. Additionally, it has become possible to provide an overall compact and lightweight header.

[Brief explanation of drawings]

#S1 is a sectional view perpendicular to the header axis of an embodiment of the present invention, FIG. 2 is a front view, FIG. 3 is a right side view, FIG. 4 is a side view of the spangle erasing device including the header, and FIG. It is a fragmentary plan view of FIG. 4 = A... Steel plate strip, B... Spangle eraser, N... Nozzle, 3... Nozzle header, 31...
First header, 32... Second header, 33... Pipe connection tube opening, 34... Pipe connection tube opening, 35... Nozzle introduction member, 35a... Liquid path, 35b... Air path, 36・
...Slide guide, 36a...Main body, 36e...
Rail agent patent attorney number of strokes Keiichi agent patent attorney large side Shin Taira 1 Figure 36 36b Figure 2 Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] a first header that is long in the width direction of the strip to be processed; a second header that is attached to the rear side of the first header and is long in parallel thereto;
a plurality of nozzle introduction members provided at equal intervals in the length direction of the header, having a liquid path and an air path, penetrating the first header in the front-rear direction and being fixed; A two-fluid nozzle header characterized in that air is introduced into one side and liquid is introduced into the other side.