JPS61175100A - Method of washing extraneous matter of dye - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention is applicable to the use of carts and hangers for transporting objects to be coated used during spray painting, or drainboards forming the grating floor of a painting booth, etc. Regarding the method of cleaning with a liquid spray nozzle for removing flakes, in detail, a method for cleaning paint deposits in which each of the liquid spray nozzles arranged in parallel in one direction partially cleans the required cleaning surface of the object to be cleaned. Regarding.

[Conventional technology]

Conventionally, in the above cleaning method, as shown in Fig. 4, fixed ring spray nozzles (N1) to (N4) are arranged in parallel in one direction, and these nozzles (N1) to (N4) are The liquid spraying operation may be performed so that the cleaning action areas of the nozzles are simply lined up continuously in the direction in which the nozzles are arranged, or as shown in Fig. 5,
Each of the juxtaposed nozzles (N1) to (N4) is swung in the juxtaposed direction to enlarge the cleaning area of each nozzle (N1) to (N4) in the nozzle juxtaposed direction. The cleaning action areas of the swinging nozzles (N1) to (N4) were made to be continuous in the direction in which the nozzles are arranged side by side.

In the figure, (A) is the object to be cleaned, and (F) is the surface that needs to be cleaned.

In addition, (α) is the spread angle of the sprayed liquid unique to the nozzle, (
θ) is the swing angle of the swing nozzle.

[Problem that the invention seeks to solve]

However, in any of the above-mentioned conventional methods, one nozzle sprays liquid from only one direction to all points on the surface to be cleaned. The reality is that it is difficult to easily remove and remove strongly adhered paint by simply spraying from one direction, and as a result, even after cleaning, some of the paint remains attached, making it difficult to thoroughly clean the paint. I was unable to do it, or
Further, there is a problem that it takes a long time to sufficiently peel off the adhering paint, resulting in a decrease in cleaning efficiency.

In particular, when the surface to be cleaned has an uneven shape, simply spraying high-pressure liquid from the nozzle from one direction will not be effective against the paint adhering to the uneven surface due to the relationship between the uneven shape and the spray angle. Therefore, the above-mentioned problem has become even more noticeable.

An object of the present invention is to enable the juxtaposed nozzles to effectively clean each and every point on the surface that needs to be cleaned, thereby making it possible to effectively peel off and remove adhering paint. .

[Means for solving problems]

The characteristic means of the method for cleaning paint deposits according to the present invention is to synchronize and swing the liquid spray nozzles arranged in parallel in one direction in the direction in which they are arranged, so that all the points on the surface that need to be cleaned are It consists in operating two matched nozzles to spray liquid alternately.
Its action and effect are as follows.

[For production]

In other words, as shown in Figure 2 (a), (0), and (c),
For all points (arbitrary points (a) or (b)) on the required cleaning surface (F), adjacent nozzles (N, ) and (N2
), or (N3) and (N4) spray the liquid alternately from different directions, compared to the conventional method where the liquid is sprayed only from one direction to the point on the surface to be cleaned. As a result, the effect of removing adhered paint from all points on the surface to be cleaned can be greatly improved.

Moreover, as shown in FIGS. 3(a) and 3(0), the required cleaning surface (F) has an uneven shape, and due to the uneven shape, the liquid spray from one nozzle (N3) is required to be cleaned ( Even if the adhering paint is not effectively removed from point (c) above F), the other nozzle (N2) sprays liquid at point (c) as the nozzles oscillate in synchronization. By spraying the liquid, the effect of removing the adhered paint on the point (c) can be maintained, and a significant decrease in the effect of removing the adhered paint due to the uneven shape can be effectively avoided.

〔Effect of the invention〕

As a result of the above, the object to be cleaned can be sufficiently cleaned efficiently, and in particular, the work efficiency when cleaning a plurality of objects to be cleaned successively can be greatly improved.

〔Example〕

Next, the present invention will be explained in detail.

FIGS. 1 and 2 show the schematic configuration of a device for cleaning a transport trolley (8) used when transporting objects to be painted, such as automobile bodies, into a painting booth after use. Nozzles (N1) to (N4) are arranged in parallel in one direction at an equal pitch (P), and the nozzles (N1) to (N4) are arranged in parallel in one direction to peel off and remove the paint attached to F) by high-pressure water spraying. A drive device (1) is provided to cause the oscillator to oscillate in synchronization with the oscillation.

9. A conveyor (2) is provided to transport the cart (A) in a direction perpendicular to the direction in which the nozzles are arranged side by side.
1) While operating high-pressure water spray while rocking the nozzles (N1) to (N4), the cart (A) is passed by the conveyor (2) to the spraying area of the nozzles (N1) to (N4). , each of the nozzles (N1) to (N4) is mounted on a trolley (
The entire surface of the required cleaning surface (F) is cleaned as the trolley (A) is transferred while the cleaning action is applied partially to the required cleaning surface (F) of A).

In the figure, (3) is a pump that supplies high-pressure water to the nozzles (N1) to (N4), and (4) is a drive device (1).
This is a link structure for synchronized swinging of the nozzles and the nozzles (N1) to (N4).

In order to oscillate the parallel nozzles (N1) to (N4) in synchronization, two adjacent nozzles (N1) to (N4) are alternately moved to each of all points on the surface (F) to be cleaned. High-pressure water spraying works, ie, Figure 2 (A).

As shown in (0) and (71), the nozzle (Nl
) and (N2) are the nozzle (N3) with respect to the representative point (b).
) and (N4) alternately spray high-pressure water, the pitch (P) and swing angle (θ) of the nozzles (N1) to (N4) are set in advance. By spraying high-pressure water alternately from two different directions to all points on the cleaning surface (F), the adhered paint can be effectively peeled off and removed. stomach'),
As shown in (0), even when the representative point (c) is located in an uneven area where the high-pressure water spray from one nozzle (N3) does not effectively remove the adhered paint, the nozzle synchronized oscillation The adhesion paint can be peeled off and removed by high-pressure water spray from the other nozzle (N2), thereby improving the overall adhesion paint peeling and removal performance.

Note that (α) in the figure is the spreading angle of the jetted high-pressure water unique to the nozzles (N1) to (N4).

In addition, the trolley transfer speed by Conhair (2) and the nozzle (N
The synchronized oscillation period of 1) to (N4) is the required cleaning surface (F)
Two nozzles (N1) for each of all points on ~
The settings are made to satisfy the correlation condition such that the alternate spraying from (N4) is reliably executed.

[Another example]

Next, other embodiments of the present invention will be listed.

As the spray liquid ejected from the nozzles (N1) to (N4), various liquid agents can be used in addition to high-pressure water.

The swing angles (θ) of the nozzles (N1) to (N4) are appropriately set based on the correlation with the nozzle arrangement pitch (P) and the spray liquid spreading angle (α) specific to the nozzles.

While transferring the object to be cleaned (A), the nozzles (N1) to (N4)
) may be operated to spray liquid onto the object to be cleaned (A) in a stationary state, and in that case, the nozzles (N1) to (N4) )
The tuning oscillation period can be changed arbitrarily.

The number of juxtaposed nozzles does not matter, and the specific structure for making the juxtaposed nozzles (N1) to (N4) oscillate in unison does not matter either.

The method of the present invention can be used to clean various objects, such as carts and hangers for transporting objects to be painted, or various members constituting a painting booth.

BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 to 3 show embodiments of the present invention, in which FIG. 1 is a schematic side view of a cleaning device and FIG. 2 (A). (o) and (II) are enlarged front views sequentially showing the state of the cleaning action, and Fig. 3 C) and (II) are partially enlarged front views sequentially showing the state of the cleaning action on the uneven parts. be. FIGS. 4 and 5 are enlarged front views showing the conventional method, respectively. (A)...Object to be cleaned, (F)...Required cleaning surface, (N1) to (N4)...Nozzle.

Claims (1)

[Claims] (1) Liquid spray nozzles (N_1) to (N
A method for cleaning paint deposits in which each of the nozzles (N_1) to (N_4) is partially cleaned on the surface (F) to be cleaned (F) of the object to be cleaned (A), and the nozzles (N_1) to (N_4) are Two adjacent nozzles (N_1) are oscillated in parallel in the parallel direction to all points on the necessary cleaning surface (F).
A method for cleaning paint deposits by alternately operating ~(N_4) to spray liquid. 2. The paint coating according to claim 1, wherein the object to be cleaned (A) is moved in a direction substantially perpendicular to the direction in which the nozzles are arranged in parallel when the nozzles (N_1) to (N_4) are in a liquid spraying operating state. How to wash kimono.