JPS5830612Y2 - airless paint machine - Google Patents

Description

[Detailed description of the invention] The present invention relates to an improved structure of a so-called airless paint sprayer that is not equipped with a compressor.In particular, the aircraft structure is formed functionally to improve vibration and soundproofing effects.
The purpose is to simplify the assembly and to improve the workability of painting.

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

In the figure, a pump body 1 is molded from synthetic resin, and has a cylindrical hollow part 2 formed in the axial direction, and a depressed part 3 formed above by the side vertical walls and the bottom plane. A columnar portion 4 is vertically provided on the lower side, and a suction hole 5 and a discharge hole 6 for liquid paint are respectively defined in the axial direction of the columnar portion 4 .

Further, a cylindrical portion 7 is provided at the front of the pump body 1 and protrudes concentrically with the hollow portion 2 along its axis, and a threaded portion 8 is formed at the tip of the cylindrical portion 7. Ear pieces 9 are provided protruding from the sides at symmetrical positions.

A cylinder 10 is fitted into the hollow portion 2 from the rear of the pump body 1, and a piston 11 is inserted into the cylinder 10 so that its rear end slightly protrudes from the rear end of the hollow portion 2. A spring 12 is elastically installed between the cylinder 10 and the piston 11.

Further, the cylinder 10 is formed with holes 13 and 14 communicating with the suction hole 5 and the discharge hole 6 of the columnar portion 4.

Further, a core 16 around which a solenoid coil 15 is wound is placed on the bottom plane of the upper recessed portion 3 of the pump body 1;
It is fixed with a rivet pin 17 via the side vertical wall.

An armature 18 is swingably supported at its upper part by a spring 19 from the core 16, and its lower part hangs down so that it can come into contact with the rear end of the piston 11.

In this case, the solenoid coil 15, core 16, armature 18, etc. form an electromagnetic device.

Further, a valve cone 20 is built into the cylindrical portion 7 of the pump body 1 together with a spring 21, and the cylinder 10 is opened and closed by the reciprocating motion of the piston 11 to perform a valve action.
The nozzle 22 is screwed onto the threaded portion 8 of.

- A buffer part 23 made of rubber or the like is engaged with the side lug 9 of the main body 1, and the main body 1 includes the h-arranging cylinder part 7.
The case 24 is surrounded by a resin molded case 24.
A groove 25 is formed in the inner wall of the buffer member 2.
The pump body 1 and the electromagnetic solenoid are suspended in the case 24 with a portion of the pump body 3 being engaged.

In this case, the case 24 is molded in two vertically divided parts, and when the end faces of the case 24 are engaged, a part of the buffer member 23 is fitted into the groove 25, and when the case 24 is connected with screws, the pump is removed. The main body 1 is fixedly suspended within a case 24.

Further, a grip 26 is integrally protruded from the case 24, and a switch 27 is protruded from the grip 26 along with a line (not shown) for energizing the solenoid coil 15. A container 28 for storing paint is removably attached, and suction vibrators 29 and 30 are suspended in the container 28 through the columnar portion 4 at the suction hole 5 and the discharge hole 6 of the pump body 1, respectively.

In the above configuration, a commercial power source is connected to the electric line of the aircraft body, the switch 27 is closed, and the solenoid coil 15 is energized to swing the armature 18, and the piston 11 engaged with the armature is moved by the compression of the spring 12. The inside of the cylinder 10 is converted into a reciprocating motion along with the rebound action, thereby sucking the paint in the container 28 from the suction hole 5 through the suction pipe 29, and the valve cone 20 is activated by the compression action of the spring 21. Painting work is performed by opening and closing the nozzle 22 and spraying from the nozzle 22.

By the way, the swing motion of the armature 18 by the electromagnetic solenoid is normally performed at a high speed of about 6000 times per minute with a power source of 100 V and 50 I (z).
Vibration noise and mechanical impact noise are generated due to the rocking of the machine, causing the aircraft to resonate, and the case 24 acts as a resonance box, which can cause severe vibration and noise in equipment located in the United States. be.

In addition, in order to avoid this, for example,
As disclosed in Japanese Patent Application No. 310, a housing containing a drive section of a sprayer and a handle section incorporating a switch for controlling energization to the drive section side are separately formed, and the above-mentioned housing adjacent to this handle section is formed separately. By fitting an elastic buffer member to the drive part and fixing the drive part and the handle part through the elastic buffer member, vibrations on the drive side are absorbed by the self-elasticity of the elastic buffer member and are transferred to the handle part. It is designed to suppress vibrations.

However, although the vibration source applied to the handle of the sprayer is suppressed, it may take time and effort to assemble the entire sprayer.

As described above, the present invention provides an electromagnetic groove 2) in the -L section of the pump body 1 which houses the cylinder 10, the screw I/n 11, the valve cone 20, and the nozzle 22. An ear piece 9 is provided protruding from the ear piece 9, and a buffer member 2 is attached to the ear piece 9.
A groove 25 is further formed in the inner wall of the case 24 to sandwich a part of the buffer member 23, and the pump body 1 is engaged with the electromagnetic lever 7 to surround the main body 1. The solenoid coil 15 is suspended and held in the case 24.
The vibration noise and impact noise generated due to the swinging of the armature 18 due to the energization can be absorbed and suppressed by the buffer member 23, thereby improving the operability of the machine body and improving the painting work efficiency. It can be done smoothly, and even over long periods of time, it can reduce physical and mental fatigue.

In this case, the case 24 is divided vertically into two parts, and when the respective end faces are matched, a part of the buffer member 23 is inserted into the groove 25, and the case 24 is connected with screws, so that the pump can be pumped all at once. The main body 1 can be suspended together with the electromagnetic solenoid, making the assembly much more efficient than the U.S.-based equipment. There is no need to form protrusions, and the case 24 can be formed in a simple form.

That is, according to the present invention, an ear piece 9 integral with the pump body 1 is provided, and a part of the buffer member 23 is fitted and locked through the ear piece 9 to surround the pump body 1, In addition, a groove 25 is formed in the inner wall of the case 24, and a part of the buffer member 23 is inserted and locked through the groove 25, so that the pump body 1 and the electromagnetic solenoid are suspended in the case 24. Because of this, it is possible to satisfactorily absorb the vibration noise and impact sound generated due to the swinging of the armature 18 by the electromagnetic trenoid, and it is therefore possible to suppress vibration transmission to the case 24 and noise resonance. It has the advantage that it can be made extremely practical.

In this case, the electromagnetic solenoid is placed and fixed on the pump body 1, the buffer member 23 is wrapped around the pump body 1, and the assembly is completed by sandwiching and fixing the buffer member 23 between the two halves of the case 24. It has the advantage that it can be made structurally very functional.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a side sectional view of the main part of the invention, and FIG. 2 is a front sectional view of the main part.

Claims (1)

[Scope of utility model registration request] The cylinder and piston are installed inside the hollow pump body,
An electromagnetic solenoid is placed and fixed on the top of this pump body,
An armature is disposed in this electromagnetic solenoid to form an electromagnetic device, and a container is removably formed in a case of a sprayer provided with a grip, and the pump main body and the electromagnetic device are housed in this case. The pump converts the amplitude motion of the armature due to the excitation of an electromagnetic solenoid into the reciprocating motion of the piston, and the reciprocating motion of the piston draws up paint into the cylinder and injects the paint from the nozzle. An ear piece is provided protruding from the side of the main body, a buffer member is engaged with the ear piece to surround the pump body, and the case is molded vertically into two parts, and the inner wall of each divided case is An airless paint sprayer, characterized in that a groove is formed in the case to engage with the buffer member, and the pump body and the electromagnetic device are suspended within the case via the buffer member.