JPH09187688A - Wax spray coating applicator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wax spray coating applicator which may be simplified in constitution, reduced in the manufacturing cost and improved in operability and has excellent fireproof safety. SOLUTION: This device has a pump, an actuator for driving the pump, a suction port for the coating liquid sucked by the pump and a discharge port of the coating liquid discharged by the pump. A housing tank B is integrally mounted at a spray gun A for ejecting the coating liquid from a nozzle. The flow route of the spray gun A and the housing tank B are coated with the adiabatic heat insulating layers. The bottom cover of the housing tank B is formed freely openable and closable and is provided with a heat receiving part. The housing tank B is provided with a heater D in the fixed position on it outside and a heating plate 31 is disposed opposite to the heat receiving part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wax spray coating apparatus for heating and melting solid wax and spray coating the solid wax onto a target surface.

[0002]

2. Description of the Related Art An apparatus for heating and melting a solid wax in a storage tank and spraying the solid wax onto a target surface by a spray gun is disclosed in Japanese Patent Laid-Open No. 6-285428.
Are known in the art.

This conventional wax spray coating device is shown in FIG.
As shown in FIG. 5, a tank 52 containing the heated and melted wax W, a low-pressure air supply pipe 53 connected to the tank 52, and an outlet pipe 54 for taking out the liquid wax in the tank 52 to the outside.
And a spray gun 58 in which the outlet pipe 54 is connected to one connection port 55 and the high pressure air supply pipe 57 is connected to the other connection port 56.

An electric heater (both not shown) is incorporated in the tank 52 and the outlet pipe 54 to heat and melt the wax, and in order to prevent solidification of the wax W due to heat radiation and cooling, each member is provided. Is covered with a heat insulating layer made of a heat insulating material. The wax W is kept at a constant temperature of about 60 to 70 degrees by a temperature adjusting sensor (not shown) provided in the tank 52 and the outlet pipe 54.

After moving the main body 61 to the vicinity of the vehicle by the wheel 60, the worker extends the lead-out pipe 54 to direct the spray gun 58 to the target surface and pulls the trigger to make the wax into fine particles. It is applied by spraying. After spraying, the coated surface is rubbed with a waste cloth, mop or the like, which allows the coated surface to have a gloss finish.

[0006]

The spray coating apparatus according to the above proposal is provided with a tank 52 in a main body 61 and introduces a molten wax to a spray gun 58 by a long outlet pipe 54. Therefore, there are problems that the structure is complicated, the manufacturing cost is high, and a large installation place is required.

Further, even when performing the spray coating work, since the outlet pipe 54 and the main body 61 must be constantly laid around, the spray gun 58 cannot be operated as desired, resulting in a great labor burden. Was given. Moreover, since a long lead-out pipe 54 is required, a large electric heater capacity is required,
There is a problem that the running cost becomes high.

When the conventional spray coating apparatus is used at a gas station, for example, a long lead-out pipe 54 and a tank 52 incorporating an electric heater are placed in a place where ignition is dangerous. Therefore, it has been pointed out that particularly strict measures including legal regulations are required and the manufacturing cost is further increased.

Further, the conventional device requires a high-pressure air source, which has to be connected to a spray gun, and therefore the disadvantage that the cost for this is added is pointed out. Not in.

The present invention has been made by paying attention to the above-mentioned problems of the prior art. By simplifying the structure, it is possible to reduce the manufacturing cost and eliminate the need for an installation place. It is intended to provide a wax spray coating device having excellent operability.

Another object of the present invention is to provide a wax spray coating apparatus which does not require an air source and can be widely spread to the general public and which is excellent in fire safety.

[0012]

In order to achieve the above object, the wax spray coating apparatus according to the present invention is as follows.

That is, the gist thereof is that a spray gun for spraying a coating liquid by driving a pump is integrally provided with a wax storage tank, and the flow path of the coating liquid in the spray gun and the storage tank are insulated. It was covered with a heat insulating layer and provided with a heat receiving part in the storage tank so that the wax in the tank was heated and melted, and a heater corresponding to the heat receiving part was provided outside the storage tank and in a stationary position. Especially.

The wax spray coating apparatus according to the present invention is characterized in that, in claim 2, the flow path of the coating liquid in the spray gun and the storage tank are made of a good heat conductive material.

According to a third aspect of the present invention, there is provided a wax spray coating apparatus, wherein the pump driving actuator is constituted by an electric motor, and the electric motor is driven by a power source battery incorporated in the spray gun. To do.

[0016]

In the spray coating apparatus according to the present invention, the tank for containing the molten wax and the spray gun are integrally configured,
Perform coating work by moving both together. Since the heat insulating layer covering the flow path of the coating liquid and the storage tank in the above spray gun is shortened by integration and the heat radiation loss is small, the melted state of the wax can be maintained for a long time.

When the flow path of the coating liquid in the spray gun and the storage tank are made of a good heat conductive material,
Since the entire flow path can be maintained at a uniform temperature by heat conduction, the flow of the molten wax is smooth.

When the power supply battery is incorporated, a long power supply cord is not required, and the operability during spray application is improved.

[0019]

EXAMPLE An example of the wax spray coating device according to the present invention will be described below. In FIG. 1, A shows a pistol-shaped spray gun as a whole, and includes a grip portion 1, a body portion 2 connected to the grip portion 1, and an injection portion 3 at the tip.
Consists of The body 2 is provided with a pump 4 composed of a gear pump and an actuator 6 for driving the pump 4 via a transmission means 5.

The above-mentioned transmission means 5 comprises a reduction gear mechanism in which a small-diameter gear and a large-diameter gear are engaged with each other, and an actuator 6
Consists of an electric motor. The electric motor is driven and operated by a trigger S attached to the grip 1. Pump 4
The casing in is provided with a suction port 4a for the coating liquid sucked by the pump 4 and a discharge port 4b for the coating liquid discharged.

Reference numeral 7 is a nozzle provided in the injection unit 3, and is connected to the above-mentioned discharge port 4b through a lead-out pipe 8. 9 is a suction port 4
It is a suction pipe attached to a, and the lower end thereof is arranged so as to face the bottom portion of a storage tank described later. The pump 4, the nozzle 7, the outlet pipe 8, and the suction pipe 9 constitute a flow path of the coating liquid, and these members are made of a light metal having good thermal conductivity.

Reference numeral 10 denotes a flow path of the coating liquid described above, that is, a heat insulating layer m having a heat insulating property such as neoprene rubber covering the pump 4, the nozzle 7 and the outer portion of the outlet pipe 8 is an electrical contact (provided on the trigger S ( The power cord is connected to the actuator 6 composed of an electric motor via (not shown).

Next, B shows the whole of the wax storage tank, which is a lid 1 provided on the body 2 of the spray gun A.
1 and a tank 12 detachably attached to the lid 11.
It is constituted by. The lid 11 and the tank 12 are made of lightweight metal having good thermal conductivity. Suction tube 9 described above
Fits tightly into the hole formed in the lid 11 and then projects downward.

Reference numeral 11a denotes a heat insulating heat insulating layer 12a covering the outer peripheral portion of the lid body 11 such as neoprene rubber. The heat insulating layer 12a covering the outer peripheral portion of the tank 12 is the heat insulating layer 11 of the same material.
A plastic outer cover 1 integral with the body 2 for overcoating a
Reference numeral 4 denotes a plastic outer cover having a side space 15 and a bottom space 16 therein and provided so as to cover the heat retaining layer 12a.

C is a bottom lid having a heat insulating layer 15 corresponding to the bottom 8a of the tank 8 at the upper end and an operation knob 16 on the lower peripheral surface. The bottom lid C receives the outer peripheral projection 17 from the outer cover 12b. It is detachably attached by engaging with the part.

Next, in FIG. 2, D shows the whole heater for heating the storage tank B, and 30 is a stationary mount 3.
Reference numeral 1 is a heating plate 34 provided on the table 33 of the mounting base 30 via a heat insulating holding base 32. An electric heater 35 is incorporated in the heating plate 31. A temperature controller for the electric heater 34. An operation switch for the electric heater 34. 37 is a cover body of the heater D.

The heating plate 31 has its upper heating surface in contact with the bottom portion 12c of the tank 12, and the storage tank B is heated by heat conduction using this portion as a heat receiving portion. The heater D is fixedly installed at a fixed position indoors, or is installed so that it can be moved within a certain range indoors or outdoors by a moving wheel 38.

A thermometer (not shown) for measuring the temperature in the tank 12 is attached to the storage tank B, and the output of this thermometer is displayed on a display 39 provided at a proper position on the jacket 14. The display 39 is provided with a lamp that displays the present temperature, a temperature suitable for spraying, and the like, and lights up when the temperature is suitable.

The structure of the wax spray coating device according to the embodiment is as described above, and the operation is performed as follows.

First, the tank 12 is removed from the lid 11, and a commercially available solid wax is put therein. As an example, the solid wax has a wax component such as carnauba wax as a main component, which is dissolved in silicone oil, vegetable oil or the like, and is solidified at room temperature.

After the wax is stored, the storage tank B to the bottom cover C
And the bottom portion 12c of the tank 12, that is, the heat receiving portion is placed on the heating plate 31 of the heater D. (See Fig. 2)
The heating plate 31 that has generated heat is transferred to the tank 1 by heat conduction.
Heat 2 to dissolve solid wax. Then, the conductive heat is further transmitted to the flow path of the coating liquid in the lid body 11, the suction pipe 9, and the spray gun A, and heats them.

On the other hand, since the flow paths of the storage tank B and the spray gun A are covered with the heat insulating layers 10, 11a and 12a, heat loss due to heat radiation is prevented and efficient heating is performed. Indicator 3 for storage tank B
When the proper temperature display (60 to 70 degrees) of the melting temperature is given in 9, the storage tank B is removed from the heater D, and the bottom lid C is attached to the bottom of the tank 12. (See Fig. 1)

When the above preparatory work is completed, carry the spray gun A to the spraying work position, and spray gun A
The nozzle 7 is directed toward the vehicle body, which is the target surface, and the trigger S is operated to perform spray application work. (See FIG. 3) Nozzle 7
The molten wax is ejected in the form of fine particles, and can be uniformly sprayed like a general coating solution.

The applied wax adheres to the target surface and solidifies. Therefore, after that, the target surface can be gloss-finished by rubbing with a waste cloth, mop, or the like according to a conventional method. At the stage when the spray application work is completed, the spray gun A is returned together with the storage tank B into the heater D so as to be ready for the next work.

In the above-described embodiment, the power cord m is required to supply power to the actuator 6. However, for example, a power supply battery (not shown) is built in the grip portion 1 of the spray gun A to drive the actuator 6. Then, the power cord m can be removed. By doing so, the operability of the spray gun A is further improved.

In the embodiment, the gear pump is used as the pump 4. However, the swinging motion of the amateur due to the excitation of the electromagnet is converted into the reciprocating motion of the piston, and the motion sucks up the coating liquid into the cylinder and jets it from the nozzle. It is easy to replace with a well-known pump, such as a pump of a type, a pump of a type that manually gives a reciprocating motion of a piston, and it can be appropriately selected and used.

In one embodiment, the heat insulating layer 11 having a heat insulating property is used.
Although heat radiation from the storage tank B is prevented by a, 12a, and 17, a vacuum heat insulation method can be used instead. That is, if a vacuum chamber is provided outside the lid 11 and the tank 12 and these are covered with a jacket, more efficient heating and heat retention can be performed.

In one embodiment, the flow path consisting of the suction port 4a, the pump 4, the outlet pipe 8 and the nozzle 7 has a heat insulating and heat insulating structure, but the spray gun A may be used as the flow path for heat insulating. Further, in the above, it is needless to say that not only one of them but also both may be covered with the heat insulating layer.

[0039]

As described above, in the wax spray coating apparatus according to the present invention, the tank for storing the molten wax is integrally attached to the spray gun. For this reason, a large main body structure and a long lead-out tube are not required, which greatly simplifies
Cost reduction can be achieved. Moreover, the operability of the spraying work is improved with the miniaturization, and the labor load can be reduced.

Further, since the tank for the melted wax and the flow path of the spray gun are covered with the heat insulating heat insulating layer, the heat radiation loss is small and the work can be performed at a low cost. Since this device does not require an air pressure source, it can be provided to the general public without incurring a special cost burden. Furthermore, since a heater for heating and melting the wax is provided outside the storage tank, it is recommended from the viewpoint of fire safety.

When the storage tank and the spray gun are made of a good heat conductor, it is possible to uniformly maintain the fluidity of the molten wax by conduction heat and to effect the spray coating smoothly. Demonstrate.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a configuration of a main part of a wax spray coating device according to the present invention.

FIG. 2 is an explanatory view showing a configuration of a main part.

FIG. 3 is likewise an explanatory view showing a usage state.

FIG. 4 is an explanatory diagram showing a configuration of a conventional wax spray coating device.

[Explanation of symbols]

 A Spray gun B Storage tank C Bottom lid D Heater 4 Pump 6 Actuator 4a Coating liquid suction port 4b Coating liquid discharge port 7 Nozzle 10 Insulating layer 11 Lid 11a Insulating layer 12 Tank 12a Insulating layer 8a Heat receiving part 11a Insulating layer 11b Heat insulation layer 17 Heat insulation layer 31 Heating plate 34 Electrothermal heater

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[Procedure amendment]

[Submission date] April 3, 1996

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0027

[Correction method] Change

[Correction contents]

The heating plate 31 has its upper heating surface in contact with the bottom portion 12 c of the tank 12,
The accommodation tank B is heated by heat conduction using this as a heat receiving portion. The heater D is fixedly installed at a fixed position indoors, or is installed so that it can be moved within a certain range indoors or outdoors by a moving wheel 38. Another one
Although not particularly described in the embodiment, the heating plate 31 described above is used.
In addition to general commercial power supply,
It can be performed using the battery power source of the vehicle. car
For both batteries, heater D can be placed inside the car.
Wear.

Claims (3)

[Claims] 1. A pump, an actuator for driving the pump, a suction port for a coating liquid sucked by the pump,
A spray gun for spraying the coating liquid by a pump is integrally attached to a spray gun for spraying the coating liquid by a nozzle, and a flow path of the coating liquid in the spray gun and a storage tank are provided. A heater that is covered with a heat insulating heat-insulating layer and is provided with a heat receiving portion in the storage tank so that the wax in the tank is heated and melted, and is placed outside the storage tank in a stationary position and corresponds to the heat receiving portion. And a wax spray coating apparatus, which sprays a melted wax as a coating liquid onto a target surface. 2. The wax spray coating apparatus according to claim 1, wherein the wax flow path and the storage tank in the spray gun are made of a material having good thermal conductivity. 3. The wax spray coating device according to claim 1, wherein the actuator is composed of an electric motor, and the electric motor is driven by a power supply battery incorporated in a spray gun.