JPS6038062A - Automatic painting mechanism - Google Patents

Abstract

PURPOSE:To smoothly perform painting at all working positions while a paint is automatically supplied, by providing a paint can , a pump and a three-way valve to predetermined places, and making only a painting tool freely movable while extending a pipe. CONSTITUTION:A paint can 1, a suction apparatus 3, a three-way valve 5 and a painting tool 6 are respectively connected through pipes 4, 7-9. When the suction apparatus 3 is operated in this state, a paint 2 is flowed into the suction apparatus 3 from the pipe 3 and supplied to the three-way valve 5 from the suction apparatus 3 through an emitting port 3b and the pipe 9. Because the excessive paint is flowed into the painting tool when the outflow pressure of a second outflow port 52 reaches predetermined pressure or more, the valve 5a of the three-way valve 5 is closed and the paint 2 is returned to the can 1 through the pipe 8. By this mechanism, a proper amount of the paint is supplied to the roller brush type painting tool 6 having a paint outflow and inflow lines from the paint can 1 through the pipe 7.

Description

[Detailed Description of the Invention] This invention relates to an automatic painting mechanism, and its purpose is when it is necessary to paint a place where workability is poor, such as a high place from the ground, or where it is necessary to paint a place far away from the paint can. Even if the painter doesn't have to carry the paint can with him, he can simply set the pump and hose on the paint can, extend the hose, and use the paint tool to automatically supply paint for a long time. However, it is possible to provide an automatic painting mechanism that can perform smooth painting work of any type of work.

A further object of the present invention is that, unlike spray painting, which is a type of automatic painting mechanism that has existed in the past, even if the paint is highly concentrated, that is, it cannot be diluted, it can be applied thickly to the painting area Q. There is a provision of a coating mechanism that can also be used with other types of paint.

Conventionally, spray painting is well known as an automatic painting device, but spray painting is effective mainly when painting a wide area. To avoid this, the paint was diluted and a uniform coating was achieved by applying multiple coats of low-concentration paint.

Therefore, spray painting cannot be used in cases where the areas to be painted are scattered and separated from each other, such as for domestic house repair painting or industrial painting. , Sufu in such cases.

If you are going to use spray painting, you will need to remove the paint film from surrounding areas that do not require painting to a certain extent, and make sure that the surrounding areas, including areas that require painting, are suitable for spray painting before painting. The drawback was that it had to be done.

In addition, it is necessary to mask (cure) a wide range of parts that do not require painting, and this work is quite time-consuming and reduces work efficiency.

In such cases, the work of peeling off the paint film and masking work is extremely time-consuming and requires a lot of effort.

It also had the disadvantage of being unsuitable for general household use or for simple industrial use, as it required advanced skill from the operator.

This invention solves the drawbacks of conventional spray painting, and although it is an automatic painting mechanism, it can be used in everyday homes, for example, for painting areas on the upper floors of houses where workability is poor, or for painting on several houses. This invention has been achieved by completing an automatic painting mechanism that can be suitably used for simple industrial painting, such as repair painting of scattered paint film detachment points.

That is, in the present invention, a suction pipe is extended from near the inner bottom of a container filled with paint, this suction pipe is connected to a suction port of a suction device, and a discharge pipe is extended from a discharge port of this suction device. A three-way valve is inserted into the path of the three-way valve, a pipe is connected from the third outlet of the three-way valve to return the paint to the paint can, and a pipe is led out from the second outlet of the three-way valve as described in 1. The pipe is connected to a connection port for a liquid passage provided at the base end of the painting tool, and this painting tool has an internal liquid passage and is entirely sealed with a 4' fl. The coating material is in communication with the liquid flow path in the base material through a narrow passage, and controls the inflow of the liquid into the base material, i.e., the pressure applied to the coating tool is determined by the pressure applied to the coating tool. In the second case, it is related to an automatic painting mechanism that is equipped with a valve that allows paint to return to the paint can.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

In Figure 1, (1) is a container such as a paint can filled with paint (2), (3) is a suction device such as a diaphragm pump, and (4) is a pump from near the inner bottom of container (1). This is a pipe connected to the suction port (3a) of the suction device (3).

The starting end opening surface of this pipe (4) [this is the filter (4a)
) is desirable because it prevents coarse substances such as dust in the paint (2) from being sent to the suction device (3).

(5) is a three-way valve such as a relief valve;
As described later, for example, the outflow pressure is measured by a flexible means, and if the discharge pressure of the coating liquid flowing out into the pipe (7) communicating with the coating tool (6) is greater than a certain value, the valve ( 5a)
It is said that the structure is closed.

The base end of the pipe (7) is connected to the second outlet (5) of the three-way valve (5).
2), while a third outlet (53) is connected to a pipe (
The base end of the pipe (8) is connected, and the free end of this pipe (8) extends into the paint can (1).

Also, a discharge pipe (9) is connected from the discharge port (3b) of the pump (3).
) extends and is connected to the inlet (5I) of the three-way valve (5).

This pipe (7) may be a pressure hose.

As shown in Fig. 2 (2), (B), (C), G)) and Fig. 3, the coating tool (6) consists of a base material (6a) and a coating material (
6b), and the coating $4' (6b) is, for example, in the case of the roller brush shown in FIGS. 2 and 3, a plastic or resin coated with bristles or sponge (10). Preferably, it consists of impregnated paper.

Further, the base material (6a) is composed of a gripping portion (2) and a frame material (02) that tightly locks the coating material (6b) (core material).

(13) is a fluid passage, and this fluid passage 03) is shown in Fig. 2 (2).
, (B).

In the embodiments (C) and (D), it is composed of a hollow tubular body, and the base of this flow path (13) is connected to the connection port (l→
is formed.

In Embodiment O of the present invention, the connection port 0a is preferably a one-touch type connection port, for example.

(ls) is a push-button switch inserted in the drift passage 03) installed in the base material (6a), and this push-button switch 0 is a valve ( 1
5a).

In Fig. 2 (0 is shown) (16) is a small hole drilled in the core material (11) constituting coatings 1, 1 (6b);
6) The paint is squeezed out through the material θ such as sponge or hair.
O).

In addition, the code (12a) shown in Fig. 2 (0) is the flow path (13).
This is a small opening for discharging the paint from the end of the frame 02), that is, the internal space (loa) of the coating material (6b).

FIG. 3 shows another embodiment Q of this coating tool (6) that can be used in the present invention, and a modification Q of this coating tool (61) is shown in FIG. 2 (0). Tayoku small hole θG)
Instead of drilling a large number of holes (07) in the core material (1), the required number of holes (07) with a relatively large diameter are drilled all over the outer circumference, and these holes (
A piston valve (17a) is interposed between the piston valve (17a) and the piston valve (17a) is pushed into the core material (I) when the coating tool (ri) is pressed against the object θ that requires painting. ) The paint is forced into the internal space (10a) in the core material (11) through the flow path 03) and the small opening (12a), and the paint is transferred through the opening (17) to the hair, sponge, etc. 00), etc., and the hair, sponge 00), etc. are used to apply the coating to the object.
6).

The automatic painting mechanism of the present invention Q having such a structure has nine paint cans (]) and nine suction devices (three) as shown in the first figure.
), a three-way valve (5), and a paint tool (9), and a vibrator (4), (7), (8), (
9) to connect.

In addition, it is desirable that the vibrator (7) has a required length that can be freely extended.

Further, even if the paint (2) in the paint can (1) is a relatively high concentration paint (2), it can be used in this invention Q.

When the suction device (3) is operated in this way, the paint (2
) flows into the suction device (3) via the vibrator (4) and from the suction device (3) via the discharge port (3b) to the three-way valve (s) G.
This is supplied via the vibrator (9).

As mentioned above, this three-way valve is equipped with a valve (5a), so that the outflow pressure of the second outflow D (52) for supplying the vibrator (7) G is below a predetermined value. If this happens, excess paint will flow into the painting tool (6), so this valve (5a) will close and the paint (2) will flow through the third outlet (53) and the vibrator (8) again. Paint can (1)
The structure is designed to provide feedback to

Note that the structure for detecting the liquid pressure of the liquid flowing out from this second outlet (52) and controlling the opening and closing of the valve (5a) may be either mechanical or electrical means. The mechanism may be such that the pressure is sensed by a necessary means such as a sensor and the electrical signal is transmitted from the control device as a signal to the valve (5a), or the outflow pressure of the paint in the outflow port (52) is detected by an elastic screw. The valve (5a) may be opened and closed using mechanical Q sensing means such as measuring with a shaped body or the like.

In this way, the paint (2) is transferred from the paint can (1) to the vibrator (
7), the painting tool (6)Q is gradually fed in.

As an initial operation, as shown in Figures 2 and 3,
Therefore, the discharge nozzle 09) is kept open in order to discharge the air in the liquid flow path (13) in the vibrator (7) and the coating tool (6).

Once the accumulated air is discharged, the discharge nozzle (19) is closed.

Further, the valve (15a) in the liquid flow path (13) provided on the coating tool (6) is kept open when the switch (15) is operated.

In this state, after the air in the liquid flow path θ3) in the vibrator (7) and the paint tool (6) is released, the release valve 09) is closed, and the paint (2) is filled inside the paint tool (6). let

In the embodiment in Fig. 2, the roller core of the application part (6b) is 0υ
The sponge, bristles, etc. are sequentially impregnated with the paint through the small opening 06), and once this state is reached, the painting work can be started immediately.

Painting can be done in the same way as with a regular roller brush.

Also, in the embodiment shown in Fig. 3, when normal painting work is started, the piston valve (+7>) will extend over the contact surface of the painting tool (
6) Retract and retract into the piston valve (17) O
As a result, the paint (2) is impregnated into the hair, sponge, etc., and is applied to the object to be painted through these materials.
When the roller rotates from this state, the piston valve (17a) that has finished painting is closed to prevent internal pressure, and the piston valve (17a) that is in contact with the next coating area continues to repeat the same operation and is installed all around the circumference. Due to the opening and operation of the Vineton valve (17a), the paint always oozes out only from the contact surface in the embodiment Q of FIG.

Therefore, in the embodiment shown in FIG. 3, the amount of paint (2) lost is small.

On the other hand, if you want to temporarily interrupt the painting work, operate the switch 05) to control the valve (lR) in the painting tool (6).
) in the three-way valve (5), the supply of paint (2) will be stopped and the outflow pressure will become excessive.
5a) is activated and the suction device (3) is in operation, the paint (2) is not excessively fed into the pipe (7) and the paint tool (6) and is directed toward the paint can (1). It will be a shock.

As described in detail below, the automatic painting mechanism according to the present invention can be used for painting in high places above the ground or in places far away from the paint cans by simply installing the paint can, pump, and three-way valve at predetermined locations. Painting work can be done by simply carrying around the painting tool while extending the pipe, even in scattered areas, and it does not have the disadvantage of spray painting, which can only be applied over a wide area, and it is a highly concentrated paint. This automatic coating mechanism eliminates the drawback of the conventional method of having to apply multiple layers of quick-paint paint over and over again.

[Brief explanation of the drawing]

FIG. 1 is an overall explanatory diagram of an automatic painting mechanism according to an embodiment of the present invention, FIG. An explanatory diagram of the frame material of the coating tool, FIGS. 2(C) and (D) are cross-sectional and external views of the coating material, and FIG. 3 is an example showing a modification of the coating tool. (1) ...Paint can (2)...Paint (3)...
Pump (3a)...Suction port (3b)...Discharge port (5)...Three-way valve (52)...Second outlet port (5
3)...Third outlet (6)...Painting tool (4), (
7), (8), (9)...Pipe (15a)...Valve

Claims (1)

[Claims] (1) A suction pipe is extended from near the inner bottom of any container filled with paint, this suction pipe is connected to a suction port of a suction device, and a discharge pipe is extended from the discharge port of this suction device. A three-way valve is inserted into the path of the three-way valve, and a pipe is connected from the third outlet of the three-way valve to return the paint to the paint can.
A pipe is led out from the second outlet of the three-way valve, and this pipe is connected to a connection port of a liquid passage provided at the base of the painting tool, and this painting tool has a liquid passage inside. The entire structure has a sealed structure, and consists of a coating material and a base material that supports the coating material. An automatic painting mechanism that is equipped with a valve that controls inflow.