JPH054057A - Rotary nozzle for spraying rust-inhibiting wax - Google Patents

Abstract

PURPOSE:To uniformly apply a rust-inhibiting wax on the region to be coated. CONSTITUTION:A wax discharge opening is formed in the nozzle main body 10 having a rust-inhibiting wax feed port, a rotating cylinder 15 is freely rotatably mounted on the main body 10 and positioned on the opening, the wax flowing out of the opening is discharged, and a wax discharge port 22 for rotating the cylinder 15 by the discharge pressure of the wax is formed in the cylinder 15 to constitute the rotary nozzle for spraying a rust-inhibiting wax. Consequently, the wax from the nozzle is uniformly applied on the region to be coated, excess wax is not applied, the coating amt. is reduced on the whole, and the wax is applied on the region to be coated in a desired thickness.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rust preventive wax spraying rotary nozzle used for applying a rust preventive wax to a bag structure of an automobile.

[0002]

2. Description of the Related Art An automobile body is formed by combining a plurality of panel materials such as side sills and fenders.
The vehicle body formed by joining multiple panels is
After being coated through the steps of undercoating, intermediate coating and topcoating, various parts such as an engine are assembled in the outfitting step. Normally, undercoating is performed with the car body dipped in the electrodeposition liquid by electrodeposition coating, so even if there is a bag-shaped structure such as a sill part of the car body, Since the electrodeposition liquid enters these bag-shaped structure parts, the undercoating coating film is also formed in the bag-shaped structure part, but the intermediate coating and topcoating are performed by electrostatic coating. In many cases, it is impossible to form an intermediate coating film or a top coating film on such a portion. Therefore, in order to prevent rusting of the vehicle body, the bag-shaped portion is coated with rust-preventing wax after the undercoating is completed.

The application of this rust-preventive wax is carried out by a spraying robot or manually by providing a nozzle at the tip of a flexible hose, and in the prior art, as shown in FIG.
A nozzle is used as shown in (B). Figure 5
The nozzle 1a shown in (A) is a nozzle of a type called a rod-shaped nozzle, and a plurality of slit-shaped discharge ports 2 are formed at the tip of the nozzle 1. In addition, FIG.
The nozzle 1b shown in 1 is a nozzle of a type called a circular nozzle, and a circular ejection port 3 is formed on the tip surface of the nozzle.

[0004]

In these conventional nozzles 1a and 1b, the wax applied from the discharge port is discharged only in a fixed direction, so that the wax applied to the bag structure portion of the automobile body is applied. The film becomes non-uniform. For this reason, conventionally, in order to apply a required amount of wax to the mating portion of the panels in the bag structure portion, an excessive amount of wax is sprayed over the required amount. Therefore,
Since a larger amount of wax than is originally required is applied, there is a problem that if the application amount is increased, it takes time for the wax to solidify, and the wax runs out for a long time.

Therefore, an object of the present invention is to enable the rust preventive wax to be uniformly applied to the surface to be coated.

[0006]

According to the present invention for achieving the above-mentioned object, a wax discharge opening is formed in a nozzle body having a supply hole to which rust preventive wax is supplied, and the outside of the nozzle body is formed. A rotary cylinder is rotatably mounted in the opening, and a wax discharge port for discharging the wax flowing out from the opening and rotating the rotary cylinder by the outflow pressure of the wax is formed in the rotary cylinder. It is a rotating nozzle for spraying rust preventive wax.

[0007]

A rotary cylinder is rotatably mounted on the nozzle body, and a wax discharge port for rotating the rotary cylinder by the outflow pressure of the wax flowing out of the nozzle body is formed in the rotary cylinder. The wax from the nozzle is uniformly applied to the application site. Therefore, a desired amount of application thickness can be formed on the application site without applying an excessive amount of wax.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A rotary nozzle for spraying an anticorrosive wax according to an embodiment of the present invention shown in the drawings will be described in detail below. FIG. 1 is a perspective view showing the appearance of a rotary nozzle for spraying rust-preventive wax, and a nozzle body 10 is attached to a supply pipe 11 by a screw member 12. A wax supply hole 14 communicating with the wax guide passage 13 in the supply pipe 11 is formed in the nozzle body 10 as shown in FIG. The wax supply hole 14 is supplied with rust preventive wax from a wax supply source (not shown) through a hose (not shown) connected to the supply pipe 11.

A rotary cylinder 15 is rotatably mounted on the nozzle body 10, and the rotary cylinder 15 is attached to the nozzle body 1.
The stopper 16 fixed to the tip of the nozzle 0 prevents the nozzle body 10 from coming off. This stopper 16
Is fixed to the nozzle body 10 by a washer 17.

The nozzle body 10 has two longitudinally extending members.
The two slit openings 21 are formed with a phase of 180 ° with respect to the center of the nozzle body 10. Therefore, the wax supplied to the wax supply hole 14 flows out to the outer peripheral surface of the nozzle body 10 through the slit opening 21. In order to discharge the wax that has flowed out into the rotary cylinder 15, a plurality of wax discharge ports 22 are formed in the rotary cylinder 15, as shown in the drawing. As shown in FIG. 4, the rotary cylinder 15 shown in FIG.
Three wax discharge ports indicated by c are shown, and one of the discharge ports 22b is a round hole and the other two discharge ports 22a and 22c are long holes. Two long holes 2
The directions of 2a and 22c are displaced from each other as shown in FIG. As a result, the rotary cylinder 15 is not biased in one axial direction, and these wax discharge ports 22a to 22c are provided.
The rotary cylinder 15 is configured to rotate around the nozzle body 10 by the hydraulic pressure of the wax discharged from the nozzle, that is, the discharge pressure. That is, all the wax flowing out from the illustrated discharge ports 22a to 22c urges the rotary cylinder 15 to a rotational force in a predetermined rotational direction. An O-ring 23 may be incorporated as shown in FIG. 2 in order to seal between the rotary cylinder 15 and the nozzle body 10.

Therefore, in order to spray the rust preventive wax into the bag structure portion of the automobile body by using the above-mentioned rotary nozzle for spraying the rust preventive wax, the nozzle 10 is mounted on the arm of the working robot, or After being manually conveyed to a predetermined application site, wax is supplied from a wax supply source in a direction indicated by an arrow in FIG. As a result, the wax flows out of the nozzle body 10 through the slit opening 21 and is then discharged from the plurality of wax discharge ports 22a to 22c formed in the rotary cylinder 15. Due to the outflow pressure at this time, the rotary cylinder 15 moves the nozzle body 10
Will rotate outside of. As a result, the rust preventive wax is uniformly applied to the entire bag-shaped structure. According to the experiment, since the wax is uniformly applied, even if the amount of the wax applied in one bag-shaped structure is reduced to about 30% of the conventional amount, the uncoated residue is not generated and the desired thickness is obtained. Now it is possible to apply wax.

The number of the wax discharge ports 22a to 22c is not limited to that shown in the figure, and may be any number, and the rotational speed of the rotary cylinder 15 may vary depending on the outflow pressure of the wax. It can be arbitrarily adjusted by selecting the number and the inclination angle. Also, the opening 2
The shape of No. 1 is not limited to the slit-shaped opening as shown, but may be a spiral-shaped opening or a circular opening.

[0013]

As described above, according to the present invention, the wax discharge port is formed in the rotary cylinder rotatably provided in the nozzle body, and the rotary cylinder is rotated by the discharge pressure of the wax discharged from the wax discharge port. Therefore, by using the discharge pressure of the wax to be applied and rotating the rotary cylinder without using a rotating mechanism for rotationally driving the rotary cylinder, it is possible to achieve uniform coating on the application site. Wax can be sprayed.

[Brief description of drawings]

FIG. 1 is a perspective view showing a rotary nozzle for spraying an anticorrosive wax according to an embodiment of the present invention,

2 is a longitudinal sectional view of FIG. 1,

3 is a cross-sectional view of FIG.

FIG. 4 is a development view of a rotary cylinder,

5A and 5B are a front view and a perspective view showing a conventional nozzle for spraying a rust preventive wax.

[Explanation of symbols]

10 ... Nozzle body, 14 ... Wax supply hole, 15 ... Rotating cylinder, 21 ... Opening part, 22 ... Wax discharge port.

Claims (1)

Claims: 1. A wax discharge opening is formed in a nozzle body having a supply hole for supplying rust preventive wax, and the nozzle body is rotatably positioned outside the nozzle body. A rotary nozzle for spraying a rust preventive wax, comprising a rotary cylinder mounted on a rotary cylinder, wherein a wax discharge port for discharging the wax flowing out from the opening and rotating the rotary cylinder by the outflow pressure of the wax is formed in the rotary cylinder.