JP3951157B2 - Metal mask plate cleaning method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention, in a state where immersed in the cleaning solution reservoir across metal mask plate in the cleaning tank, which according to the improved invention of a process of ultrasonic cleaning, to the metal mask plate cleaning method.
[0002]
[Prior art]
2. Description of the Related Art An apparatus for ultrasonic cleaning in which a whole metal mask plate (hereinafter also referred to as a metal plate) is immersed in a cleaning liquid, that is, a so-called soaked state is known and used.
Conventionally, the metal plate is soaked in the cleaning solution in the cleaning tank, and after cleaning with ultrasonic waves, the solder residue (residue) and various stains peeled off from the metal plate, especially near the surface of the cleaning solution, There is a problem that when the cleaning liquid is floating and dropped (discharged) from the valve at the bottom of the cleaning tank (to the cleaning liquid tank), those residues or dirt adhere to the metal plate.
[0003]
[Problems to be solved by the invention]
The present invention has been made in view of the problems of the prior art, and the object of the present invention is a dove-immersion ultrasonic cleaning type metal plate cleaning apparatus, after a normal conventional ultrasonic cleaning process, An object of the present invention is to provide a metal mask plate cleaning method capable of washing away residues or dirt adhering to a metal plate.
[0004]
The metal mask plate cleaning method according to the first aspect of the present invention solves the above-mentioned problems and is as follows.
[0006]
The cleaning liquid is pumped from the cleaning liquid tank to the cleaning tank, and after ultrasonic cleaning with the entire metal mask plate immersed in the cleaning liquid in the cleaning tank, the valve at the bottom of the cleaning tank is opened and the cleaning liquid is transferred to the cleaning liquid tank. In the ultrasonic cleaning apparatus of the returning method, after the ultrasonic cleaning, after the cleaning liquid returns to the cleaning tank, the valve at the bottom of the cleaning tank is closed, the cleaning liquid is pumped up by the pump, and sent to the cleaning tank. When the metal mask plate is immersed in the cleaning tank, the cleaning liquid is cleaned by the pump while ultrasonically cleaning the metal mask plate for a predetermined time with the valve at the bottom of the cleaning tank opened. The cleaning liquid is continuously fed from the tank to the cleaning tank.
After the predetermined time determined by those skilled in the art, the metal mask plate is taken out from the cleaning tank.
That is, the invention according to claim 2 is characterized in that, after normal ultrasonic cleaning by dipping, the metal plate can be rinsed with a cleaning liquid while being immersed in a cleaning liquid and subjected to ultrasonic waves.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
First, an embodiment of claim 1 will be described.
[0009]
In the first aspect of the present invention, after the ultrasonic cleaning in a normal soaked state, the control device of the metal mask cleaning device opens the electromagnetic valve at the bottom of the cleaning tank and returns the cleaning liquid to the cleaning liquid tank . When the cleaning liquid returns to the cleaning liquid tank , the control device closes the electromagnetic valve and drives the pump to discharge the cleaning liquid in the cleaning liquid tank to the cleaning tank. Since the electromagnetic valve is closed, the cleaning liquid accumulates in the cleaning tank. When a predetermined amount of cleaning liquid has accumulated in the cleaning tank, the control device can recognize it. This is because a conventional dough-immersed metal mask plate cleaning apparatus is usually provided with a float and can detect that a necessary amount of cleaning liquid has accumulated in the cleaning tank.
[0010]
When the control device recognizes that a required amount of cleaning liquid has accumulated in the cleaning tank, the control device opens the electromagnetic valve and ultrasonically cleans the metal plate. At this time, the pump remains driven, and the cleaning liquid continues to be discharged into the cleaning tank. Said electromagnetic valve is open, the metal plate of the washing tank, in a state where immersed in the cleaning liquid is ultrasonically cleaned, the cleaning liquid solution tank from the basin, predetermined while circulating the cleaning bath from the solution tank When the metal plate is rinsed with ultrasonic waves for a predetermined time, the control device stops the ultrasonic waves, stops the pump, and opens the electromagnetic valve. When the cleaning liquid returns from the cleaning tank to the cleaning liquid tank , the user can take out the metal plate from the cleaning tank.
[0011]
【Example】
The configuration of the metal mask plate cleaning apparatus according to the present invention is the same as that of the conventional ultrasonic cleaning apparatus. That is, the main components are a cleaning liquid tank , a cleaning tank, an electromagnetic valve, a pump, an ultrasonic transducer, and a control device. According to the first aspect of the present invention, the program is substantially built in the ROM in the control device. The rinsing program according to the invention of claim 1 is mounted on the control device.
[0012]
FIG. 1 is a schematic perspective view showing an embodiment of a metal mask plate cleaning apparatus according to the present invention.
FIG. 1 shows a state where washing is carried out after conventional ultrasonic pickling.
Although the metal plate is not shown in FIG. 1, it is naturally in the cleaning tank 3 in practice.
[0013]
Electromagnetic valve 4 is open, the cleaning liquid, the cleaning tank 3 from the cleaning liquid tank 1 circulates from the cleaning tank 3 to the solution tank 1. That is, the metal plate is washed with a cleaning solution. It is desirable to provide a filter 6 somewhere in the cleaning liquid circulation system and filter the cleaning liquid. Thus, residues such as cream solder attached to the metal plate can be washed away by so-called washing.
[0014]
FIG. 2 is a perspective view showing an embodiment of a metal mask plate cleaning apparatus according to the present invention.
FIG. 2 shows a state where ultrasonic cleaning is performed while rinsing a metal plate (not shown) after the conventional dobbling cleaning.
After the conventional dough pickling cleaning, the cleaning liquid is once discharged and the electromagnetic valve 4 is closed. The pump 2 puts the cleaning liquid into the cleaning tank 3 and puts the metal plate in a doggy state. Thereafter, as shown in FIG. 2, the electromagnetic valve 4 is opened, and the metal plate is ultrasonically cleaned while circulating the cleaning liquid.
[0015]
That is, the metal plate is rinsed with a cleaning solution while applying ultrasonic waves.
Residue such as cream solder adhering to the metal plate can be removed because it floats in the cleaning solution after normal ultrasonic pickling.
In particular, when the filter 6 is provided in the cleaning liquid circulation system, the residue can be strongly removed.
[0016]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained. In conventional gutter pickled type metal plate ultrasonic cleaning device the same configuration, the following typical ultrasonic cleaning can rinse ultrasonic metal plate. This is possible by installing programs for controlling the electromagnetic valve 4, the pump 2, and the ultrasonic transducer 7 in the control device 5.
[0017]
Accordingly, it is possible to provide a method for cleaning a metal mask plate that can be removed by washing or ultrasonic rinsing even if residues or dirt such as cream solder adheres to the metal plate after conventional normal ultrasonic cleaning. it can.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view showing an embodiment of a metal mask plate cleaning apparatus according to the present invention. FIG. 2 is a schematic perspective view showing an embodiment of a metal mask plate cleaning apparatus according to the present invention.
DESCRIPTION OF SYMBOLS 1 Washing liquid tank 2 Pump 3 Washing tank 4 Electromagnetic valve 5 Control device 6 Filter 7 Ultrasonic transducer opening The electromagnetic valve open / closed state ON / OFF Ultrasonic transducer driving state

Claims (1)

The cleaning liquid is pumped from the cleaning liquid tank to the cleaning tank, and after ultrasonic cleaning with the entire metal mask plate immersed in the cleaning liquid in the cleaning tank, the valve at the bottom of the cleaning tank is opened and the cleaning liquid is transferred to the cleaning liquid tank. In the ultrasonic cleaning apparatus of the returning method, after the ultrasonic cleaning, after the cleaning liquid returns to the cleaning liquid tank, the valve at the bottom of the cleaning tank is closed, the cleaning liquid is pumped up by the pump, and sent to the cleaning tank. When the metal mask plate is immersed in the cleaning tank, the cleaning liquid is cleaned by the pump while ultrasonically cleaning the metal mask plate for a predetermined time with the valve at the bottom of the cleaning tank opened. A metal mask plate cleaning method , wherein the cleaning liquid is continuously fed from a tank to the cleaning tank.

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