JPH034340Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a filter cleaning device, and in particular,
The present invention relates to an improvement of a filter cleaning device suitable for cleaning a mesh filter that filters cleaning liquid in a metal washer.

[Conventional technology]

Conventionally, solid or semi-solid dirt adhering to the mesh filter that filters the cleaning solution of a metal washer is usually removed by an operator holding a compressed air nozzle in his hand and blowing air along the mesh of the filter. was.

[Problem that the invention attempts to solve]

However, according to this method, there is a problem in that the dirt blown away by the air is scattered in the air in the form of a spray, deteriorating the working environment.

Furthermore, since the operator manually blows air along the mesh of the filter, there is a problem in that the working time is increased.

Therefore, an object of the present invention is to prevent deterioration of the working environment due to filter cleaning work and to shorten the working time required for filter cleaning.

[Means for solving problems]

For this reason, the filter cleaning device according to the present invention has a nozzle with a compressed air jet hole formed inside the shielding box, and the filter to be cleaned is moved back and forth with respect to the nozzle inside the shielding box. This feature is characterized in that it is configured to remove dirt from the filter.

Specifically, a shielding box is formed on one side with an opening for inserting a filter to be cleaned, and a shielding box is provided inside the shielding box on the side of the opening, extending along the longitudinal direction of the opening. a nozzle having an air jet hole formed toward the filter to be inserted; a reflecting plate disposed opposite to the nozzle so as to sandwich the filter; and a reflector plate connected to the nozzle, the filter being connected to the opening and an air supply device that detects when the nozzle is inserted into the nozzle and supplies compressed air to the nozzle.

[Effect]

To explain the operation of the present invention with the above configuration, when the filter to be cleaned is inserted into the opening of the shielding box, it is detected and the air supply device is activated to send the filter to the nozzle disposed inside the shielding box. Supply compressed air.

As a result, air is blown onto one side of the filter from the air jet hole provided in the nozzle. The air blown onto the filter removes dirt from the filter, passes through the filter, and hits the reflector. The air that hits the reflector is reflected by the reflector and blown onto the other side of the filter again.

In this way, air is blown from both sides of the filter to remove dirt. Furthermore, by reciprocating the filter in the direction in which it is inserted, air is blown over the entire surface of the filter to remove dirt.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

1 is a perspective view showing a schematic configuration of a filter cleaning device according to the present invention, FIG. 2 is a cross-sectional view of FIG. 1, and FIG. 3 is a sectional view taken along the line - in FIG. 2.

The filter cleaning device 1 includes a shielding box 2, a nozzle 4 disposed inside the shielding box 2, a reflecting plate 6, and an air supply device 8 connected to the shielding box 2.

The shielding box (hereinafter referred to as a box) 2 has a box shape with a rectangular cross section that is long in the axial direction. A cleaning filter (hereinafter referred to as filter) 3 is installed on the top surface 22 of the box 2.
A slit-shaped opening 24 is formed for inserting the . The opening 24 is formed approximately at the center of the upper surface portion 22 along its longitudinal direction.

Guide members 26 for guiding the filter 3 into the box 2 extend downward from both ends of the opening 24 . The guide member 26 has a length shorter than the height of the box 2, has a frame-shaped structure with a U-shaped cross section, and has a closed lower end. The back surface portion 26A of the guide member 26 is fixed to the inner walls of both longitudinal end surfaces 28 and 29 of the box 2, respectively.

A dirt receiving box 27 is disposed inside the box 2 and below the closed end 26B of the guide member 26. The dirt receiving box 27 has an open top surface to receive dirt that is removed. Moreover, it is slidably fitted in the box 2 in the longitudinal direction so that accumulated dirt can be removed.

The nozzle 4 extends along the longitudinal direction of the opening 24 at the upper corner of the box 2. Tip 4 of nozzle 4
2 is closed, and the rear end 44 passes through the end surface 29 of the box 2 and is pulled out. And the rear end 4
4 is connected to an air supply device 8.

The nozzle 4 has a cylindrical pipe shape, and has a large number of air ejection holes 46 formed at approximately equal intervals in its longitudinal direction. The air blowout hole 46 is provided so that its opening direction faces toward the opening 24 side and slightly downward.

The reflecting plate 6 extends on the opposite side of the nozzle 4 and in parallel thereto so as to sandwich the opening 24 therebetween. The reflecting plate 6 has a cross section curved into a partially arcuate shape, and an inwardly curved reflecting surface 62 is directed toward the ejection hole 46 of the nozzle 4 .

A limit switch 12 is disposed in the opening 24 and is configured to detect when the cleaning filter 3 is inserted and send a signal to the air supply device 8.

The air supply device 8 includes an air pump 82, an air valve 84, and a control section 86. The compressed air generated by the air pump 82 flows through the passage 88.
It is supplied to the nozzle 4 through. An air valve 84 is disposed in the middle of the passage 88, and operates to open and close the passage 88 in response to an output signal from a control section 86. The control section 86 is connected to the limit switch 12 through the signal line 14.

To explain the operation of the embodiment according to the above configuration, when the filter 3 is inserted from the opening 24 of the box 2 along the guide member 26, this is detected and the limit switch 12 is activated, and the air supply device 8 is activated. A detection signal is output to the control section 86.

This opens the air valve 84 and supplies compressed air to the nozzle 4 through the passage 88. Then, the compressed air is sent to the air jet hole 46 of the nozzle 4.
It is sprayed from the air toward one side of the filter 3.

As a result, the compressed air uses its force to remove dirt adhering to the filter 3, passes through the mesh of the filter 3, and hits the reflective surface 62 of the reflective plate 6. The air applied to the reflective surface 62 is reflected here, changes direction, and is again blown onto the other side of the filter to further remove dirt.

In this way, air is blown from both sides of the filter 3 to remove dirt. Further, by reciprocating the filter 3 up and down in the insertion direction, air is blown over the entire surface of the filter 3 to remove dirt.

Although the present invention has been described above based on specific embodiments, it is not limited thereto, and those skilled in the art may consider various other embodiments within the scope of the claims for utility model registration. It will be done.

For example, instead of one nozzle, two or more nozzles may be provided. Furthermore, the reflecting plate does not have to be curved, but may be flat within a possible range.

[Effect of idea]

As explained above, according to the present invention, the filter to be cleaned is moved back and forth in the shielding box with respect to the nozzle that blows out compressed air, thereby removing dirt from the filter. This prevents dirt from being blown away, reduces air noise, prevents deterioration of the working environment, and facilitates the collection of dirt.

Furthermore, since the reflector plate allows compressed air to be efficiently blown over the entire surface of the filter, the working time required for cleaning the filter can be reduced.

Furthermore, since the supply of compressed air is performed in conjunction with the insertion operation of the cleaning filter, an excellent effect is achieved in that the operability of the apparatus can be improved.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a schematic configuration of a filter cleaning device according to the present invention, FIG. 2 is a cross-sectional view,
FIG. 3 is a sectional view taken along the - line in FIG. 2. 1... Filter cleaning device, 2... Shielding box, 4...
...Nozzle, 6...Reflector, 8...Air supply device,
24...opening, 46...air blowout hole.

Claims (1)

[Scope of utility model registration request] A shielding box having an opening for inserting a filter to be cleaned on one side, and a filter extending along the longitudinal direction of the opening and inserted inside the shielding box on the opening side. a nozzle having an air jet hole formed toward the nozzle, a reflector disposed opposite to the nozzle so as to sandwich the filter, and connected to the nozzle, the filter being inserted into the opening. 1. A filter cleaning device comprising: an air supply device that detects air flow and supplies compressed air to the nozzle.