JPS63190674A - Nozzle device of fluid coating apparatus - Google Patents

Abstract

PURPOSE:To efficiently perform multi-stripe coating even when there is an obstruction, by providing a downward notch to a proper place where no nozzle orifice is present to form a nozzle member and further arranging a nozzle member having a nozzle orifice at the position corresponding to the notch behind said nozzle member in close vicinity thereto. CONSTITUTION:A large number of nozzle orifices 5 are provided to the nozzle member 1 mounted to the leading end of a nozzle apparatus so as to be opened to the bottom surface thereof and notches 6 are provided to the places, where a large number of the nozzle orifices 5 are not present, of said member 1. Therefore, even when there is an obstruction such as the coating layer of the previous process or a tape on a coating surface, predetermined coating work can be performed by opposing the notches 6 to the obstruction. The second nozzle member 11 is arranged behind the nozzle member 1 in close vicinity thereto so that the nozzle orifices 15 thereof correspond to the notches 6 of the nozzle member 1 and, when a coating material is different, a multi-stripe coating layer can be formed by a single process.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to apparatus for applying fluids (eg adhesives). More specifically, the present invention relates to a fluid application device having a nozzle device having a plurality of nozzle holes.

OBJECT OF THE INVENTION The first invention of the present application is to quickly and efficiently apply a fluid to a coating surface where there are obstacles between coating locations using a nozzle device having a plurality of nozzle holes. purpose.

The second invention of the present application aims to simplify a fluid application device when there are two or more types of fluids to be applied or when there are two or more types of application states (coating length, coating thickness). be.

O Means for Achieving the Above Object The first invention of the present application provides a nozzle member (1) in which a downward notch (6) is formed at a proper location where no nozzle hole (5) is present.

A second invention of the present application provides a second invention at a location adjacent to the i side of the nozzle member (1), connected to the second fluid supply path (12), and located behind the notch (6) of the nozzle member (1). A second nozzle member (11) provided with two nozzle holes (15)
is arranged close to the nozzle member (1) of the first invention.

○Example Figures 1 to 3 show a nozzle member (1) installed at the tip of a nozzle device, and a supply hole (3) communicating with a fluid supply path (2), which is orthogonal to the supply hole (3). Longitudinal expansion chamber (
4), and a nozzle (5) which is perforated from the expansion chamber (4) toward the bottom surface of the nozzle member, and the nozzle hole (5) is opened at the bottom surface of the nozzle member (1), and a plurality of nozzle holes are arranged in parallel. This is the same as in the conventional device.

In carrying out the present invention, the above-mentioned plurality of nozzle holes (5)
A cutout (6) is provided at a desired location in the lower part (la) of the nozzle member where there is no cutout (6).

FIG. 4 shows a nozzle assembly W (gun unit) (A) of a hot melt (heat coating device) using the nozzle member (1) of the present invention.
(7) is a gun, (8) is a heating block, and (9) is a tank for dispensing material. Tank (9
) is supplied with air supplied from compressed air g <p>, and air is also supplied to the valve mechanism of the gun (7) through the control of the solenoid valve (7a), Spray the coating material from the nozzle hole (5) of 1),
Perform coating work.

At this time, as shown in Figure 4, there is a problem fk on the coating surface (M).
Even if (N) is present, the coating operation can be performed without any hindrance by arranging the notch (6) of the nozzle member (1) to face the obstacle (N).

Note that obstacles (N) include protrusions formed on the coated surface (e.g., rubber strings, rubber tapes, etc. that are glued to give the sheet on the coated surface elasticity, or formed on the sheet on the coated surface). (convex pattern), coating material applied in the previous work process, various additives (buttons, hooks, double-sided adhesive tape)
etc., and when a conventional nozzle device without a notch (6) is used, when the bottom surface of the nozzle member (1) is adhered to or brought close to the application surface, the obstruction (N) will be removed from the nozzle member ( However, in the nozzle device of the present invention, since the notch (6) passes through the obstacle (N), no problem occurs.

Next, in the embodiment shown in FIGS. 5 and 6, the distribution member (valve mechanism) connected to the pressurized fluid fi (P')
Connect the supply hole leading to the supply boat in (10) to the fluid supply channel (
2).

Under the control of the distribution member (10), pressurized fluid is discharged from the nozzle hole (5) of the nozzle member (1) to perform the coating operation. Similar to the embodiment shown in FIG. 4, the coating operation can be performed on the coating surface (M) where an obstacle (N) exists.

7 and 8 show an embodiment of the second invention of the present application, in which a second nozzle member (11) is attached to or adjacent to the nozzle member (1).

The second nozzle member (10) is connected to the same pressurized fluid! (P”) as the nozzle member (1) via the second fluid supply path (12) and the second distribution member (valve mechanism) (10″) and the same pressurized fluid is distributed to the distribution member (10) and the second distribution member (10).
It is also possible to perform the coating operation at different coating timings by controlling the second pressurized fluid source (P''), but by connecting the second fluid supply path (12) to the second pressurized fluid source (P''), both nozzle members (1
) (10) allows simultaneous application of different fluids (FIG. 10).

In the second invention of the present application described above, the second nozzle hole (15)
is located behind the nozzle hole (5) and connects the nozzle hole (5) and the second
Since the nozzle holes (15) are shifted from each other in the front-back direction, the second nozzle member (1) is shifted from the supply hole (3) and the expansion chamber (4) of the nozzle member (1) in the front-back direction.
0) second supply hole (13), 2nd j! The tension chamber (14) will be arranged, and the second nozzle hole (15) will be connected to the nozzle hole (
Compared to the case of 5) where the holes are the same in the front and back direction, the holes can be formed in a substantially straight line, and the configuration of the nozzle members (1) and (11) is simpler. In the embodiment, the nozzle members (i) and (n) are constructed by combining and integrating a pair of left and right members having grooves formed opposite to each other at predetermined positions, so no drilling work is required.

○Effects of the Invention The first invention of the present application has the cutout (6) provided at the bottom of the nozzle member (1) to prevent obstacles from forming on the coating surface (for example, the coating layer applied in the previous process or adhesion to the coating surface). 1), there is an effect that a multi-strip coating layer can be formed in a single coating process without causing any trouble.

The second invention of the present application has the effect of continuously performing coating operations in close proximity when the coating materials to be coated are different or when the coating conditions (coating position, coating length, etc.) are different. Further, the second nozzle hole (15) of the second nozzle member (11)
) is located behind the nozzle hole (5) of the nozzle member (1), so the structure of the nozzle member (1) (11) is This has the effect of simplifying the process.

[Brief explanation of the drawing]

1 to 3 show the nozzle member which is the main part of the present invention, FIG. 1 is a plan view, FIG. 2 is a longitudinal cross-sectional view in a plan view, and FIG. 3 is FIG. 2 S-8 FIG. FIG. 4 shows a second embodiment of the first invention of the present application, and is a schematic diagram of a hot melt nozzle device equipped with the above-mentioned nozzle member. 5 and 6 show a second embodiment of the first invention of the present application, FIG. 5 is a schematic diagram of a nozzle device integrated with a distribution member connected to a pressurized fluid source, and FIG. 6I2I is a main part. FIG. FIG. 7 is a schematic diagram showing a first embodiment of the second invention of the present application, in which a second nozzle member is attached to the nozzle device of FIG. 6;
FIG. 8 is a schematic view showing a second embodiment of the second invention of the present application, in which a second nozzle member is installed independently of the nozzle shown in FIG. 6. FIG. 9 is a schematic diagram showing the case where the nozzle device of the second invention is connected to a single pressurized fluid source, and FIG. 10 is a schematic diagram showing the case where it is connected to two independent pressurized fluid sources. ^, A'... Nozzle device 1... Nozzle member 2... Fluid supply path 5... Nozzle hole 6... Notch 10. ...Second nozzle member 11...Distribution member 11''...Second distribution member 12...Second fluid supply path 15...Second nozzle hole Figure 1 Figure 2 Figure 7 Figure 8 (α) (b)

Claims (2)

[Claims] (1) A large number of nozzle holes (5
) is exposed on the lower surface, and a downward notch (6) is formed in a proper position where the nozzle hole (5) is not present. nozzle device. (2) A large number of nozzle holes (5
) is exposed on the lower surface, and a nozzle member (1) has a downward notch formed at a proper location where the nozzle hole (5) does not exist, and a nozzle member (1) is arranged close to the rear of the nozzle member (5). A second nozzle device (11) connected to a second fluid supply path (12) and provided with a second nozzle hole (15) at a location located behind the notch (6) of the nozzle member (1); A nozzle device for a fluid application device, comprising: