JPH0615241A - Ultrasonic washer - Google Patents

Abstract

PURPOSE:To provide an ultrasonic washer wherein the material to be washed (e.g. drawing pen) is set in the prescribed position and power is supplied to perform washing operation for a necessary time and, thereafter, the material to be washed is automatically drawn up from washing liquid. CONSTITUTION:An electromagnet 4 is provided in the upper end part of a holding base 2 which holds a washing tank 1 equipped with a vibrator. A supporting plate 5 of the material to be washed is provided so as to cover the opening part of the upper face of the holding base 2. A magnetic substance 6 attracted to the electromagnet 4 is fixed to the rear surface part of the supporting plate 5. A coil spring 7 for return is provided between the supporting plate 5 and the holding base 2. The electromagnet 4 is energized and made to an excitating state. When the vibrator is actuated in a state wherein the supporting plate 5 is positioned in the lower side, the lower part of the material to be washed which is supported to the supporting plate 5 is washed in the washing tank 1. When excitation of the electromagnet l, is erased, the supporting plate 5 is pushed back by the coil spring 7 and the material to be washed is automatically drawn up from the washing tank 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic cleaning device suitable for cleaning a pen tip of a drawing pen used mainly in an automatic drawing machine such as a plotter.

[0002]

2. Description of the Related Art Conventionally, many known techniques have been proposed and put into practical use as a technique for cleaning an article using ultrasonic waves. However, many of them are, for example,
16230, Jikken 2-30065, Jikho 56-48392, or Kaikai 56-76.
As known from Japanese Patent Publication No. 092, etc., an article to be cleaned is directly or indirectly inserted into a cleaning tank through a container to be cleaned.

[0003]

In such a conventional ultrasonic cleaning device, most of the ultrasonic cleaning device is to be cleaned by applying the cleaning liquid to the whole or main part of the cleaning target. Even after finishing, it is still immersed in the cleaning solution until it is taken out. However, when using ultrasonic cleaning for the purpose of cleaning a state in which a liquid is contained inside the object to be cleaned, such as cleaning a drawing pen, for cleaning the pen tip, the When used in such a state, when the clogged ink comes to a state where the clogged ink flows normally after cleaning, the ink will flow out into the cleaning liquid.

For this reason, when ultrasonic cleaning is used to clean the pen tip of the drawing pen, the drawing pen is manually washed for the required time, and after a lapse of time when it can be determined that cleaning has been completed. It is necessary to pull up the pen tip of the drawing pen from the cleaning liquid. For this reason, the operation seems to be troublesome and easy, and requires considerable skill.

In view of such a situation, in the present invention, when an object to be cleaned (for example, a drawing pen) is set at a predetermined position and the power is turned on, the cleaning operation is automatically performed after the cleaning operation is performed for a required time. An object of the present invention is to provide an ultrasonic cleaning device having a simple structure in which an object to be cleaned is pulled up from a cleaning liquid.

[0006]

In order to achieve such an object, the present invention provides an electromagnet at the upper end portion of a cleaning tank holding base for accommodating a cleaning tank having an external vibrator attached thereto. A magnetic body attracted by the electromagnet is attached to the lower surface of the object support plate to be cleaned provided so as to cover the upper opening of the cleaning tank support, and the object support plate to be cleaned and the cleaning tank support are A return push-up means is disposed between the electromagnets, and the electromagnet is energized and excited to position the object support plate to be cleaned downward by attracting the magnetic material and to activate the vibrator to clean the object. When the lower part of the object to be cleaned supported by the object supporting plate is cleaned in the cleaning tank and the excitation of the electromagnet is erased, the object supporting plate to be cleaned is pushed back by the pushing means and the object to be cleaned is pulled up from the cleaning tank. It is characterized by being configured into.

Further, in the above structure, the cleaning time of the object to be cleaned is pushed up by depressing the cleaning object support plate supporting the object to be cleaned, the timer is activated, and when the cleaning time elapses, the excitation of the electromagnet is erased. It is more preferable to be able to pull up by means. It is preferable that a compression elastic body be used as the pushing-up means for the article-supporting plate to be cleaned, and that the article-supporting plate to be cleaned be supported by the cleaning tank holding table so as to be vertically movable.

[0008]

In the ultrasonic cleaning device of the present invention having the above-described structure, the object to be cleaned is supported by the supporting plate for the object to be cleaned and pushed down as it is, and when the power source is connected, the vibrator of the cleaning tank is activated. At the same time, the electromagnet is excited to adsorb and hold the article support plate to which the magnetic material is attached, and the article to be cleaned is washed. When the power supply is cut off after the cleaning is completed, the lifting means, which has been compressed until then due to the elimination of the excitation of the electromagnet, pushes up the support plate for the object to be cleaned and lifts the cleaning part of the object to be cleaned from the cleaning liquid.

Further, when the preset cleaning time has elapsed due to the connection of the power source, the timer stops the power source and the cleaning is stopped and the excitation of the electromagnet is erased. The object support plate is pushed up by the to-be-cleaned object, and the object to be cleaned is pulled up from the cleaning liquid. Therefore, it is possible to prevent the contents of the cleaning object from leaking into the cleaning liquid. Further, by supporting the object support plate to be cleaned on the cleaning tank holder by the pushing-up means, the structure is simplified.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the ultrasonic cleaning device of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a central longitudinal sectional view of the ultrasonic cleaner of the present invention, which is suitable for cleaning the pen tip of a drawing pen.

In this figure, in the ultrasonic cleaner A, a cleaning tank 1 is supported on a central portion of a cleaning tank holding table 2 having an appropriate size,
The cleaning tank 1 is provided with a piezoelectric element 3 serving as an exciter by well-known means.
Is attached. One or a plurality of electromagnets 4 are attached to the upper surface of the cleaning tank holder 2. An object support plate 5 for receiving a drawing pen B, which is an object to be cleaned, is arranged on the upper side of the cleaning tank holder 2. On the back surface of the object support plate 5 to be cleaned, a magnetic material 6, for example, A thin steel plate is attached to face the electromagnet 4. A plurality of the object support plates 5 to be cleaned are arranged horizontally on a lower surface of the holding table 2 (not limited to this) and horizontally supported by a coil spring 7 whose lower end is held. . In addition, a support hole 5 ′ into which the drawing pen B can be inserted is provided in the center of the object support plate 5 to be cleaned.

As shown in FIG. 2, the ultrasonic cleaner A having the above-mentioned structure has a start switch 10 on the upper surface of the cleaning tank holder 2.
Is provided so that the starting switch 10 is turned on when the cleaning target support plate 5 is pushed down, and an automatic reset timer 12 is provided in the power supply circuit from the power source 15 to the electromagnet 4 and the piezoelectric element 3. ing.

In the ultrasonic cleaner A of the present invention thus constructed, the drawing pen B to be cleaned is placed in the support hole 5'of the object support plate 5 as shown in FIG. 3 in use. If the pen tip side is inserted, and the flange portion b receives and pushes the pen tip side toward the cleaning tank 1 containing the required cleaning liquid in advance, the pen tip b ′ of the drawing pen B is the cleaning liquid in the cleaning tank 1. Be soaked in. At the same time, the starting switch 10 provided on the cleaning tank holding table 2 side is turned on by the back surface of the object supporting plate 5 to be energized to the piezoelectric element 3 and the electromagnet 4 via the timer 12.

The timer 12 is set in advance to have one or more required times suitable for cleaning the pen tip b'of the drawing pen B by cleaning, and the energization can be cut off at the optimum time. Therefore, when the electricity is applied as described above, the cleaning liquid in the cleaning tank 1 is ultrasonically vibrated to start cleaning the pen tip b '. At the same time, this object support plate 5 for cleaning
Is attracted and held via the magnetic body 6 by the excitation of the electromagnet 4. Therefore, even if the drawing pen B is pushed down and then the hand is released, the object support plate 5 is kept in the lowered state. Of course, the supported drawing pen B is washed by immersing the pen tip b'in the cleaning liquid. Is kept in a state.

After a lapse of time set by the timer 12, the timer 12 is activated to cut off the power supply to the electromagnet 4 and the piezoelectric element 3. Therefore, the cleaning operation in the cleaning tank 1 is stopped, and at the same time, the excitation by the electromagnet 4 is erased, so that the object supporting plate 5 is pushed up by the accumulated pressure of the coil spring 7 which has been compressed until then, and the object to be cleaned is The nib b ′ of the drawing pen B supported by the support plate 5 is pulled up from the cleaning liquid in the cleaning tank 1.

In the ultrasonic cleaner A of the present invention, after the drawing pen B, which is the object to be cleaned, is mounted in this way, the cleaning operation is automatically terminated when the required time elapses, and the completed drawing is completed. Since the working pen B is pulled up and the operation of the cleaning device is stopped at the same time, the ink does not leak into the cleaning liquid from the excessive cleaning or the cleaned nib.

In the ultrasonic cleaner A of the present invention, in addition to the above configuration, as shown in FIG. 4, for example, a vertical direction is provided between the upper surface of the cleaning tank holder 2 and the lower surface of the object supporting plate 5. If the bellows-shaped cover 8 is provided as an expandable / contractible cylinder, the pen tip b ′ of the drawing pen B pulled out from the cleaning liquid after cleaning will not dry even if left unattended, and the ink flow will resume. It can be processed without blocking.

Further, the ultrasonic cleaner A of the present invention is not limited to the above-mentioned cleaning of the drawing pen, but can be used for cleaning the general pen for lettering and drawing, and Of course, it can be applied to other articles by changing the shape of the object support plate. Further, as the pushing-up means, one coil spring, or not only the coil spring but also another elastic body or an expansion / contraction pressing mechanism can be adopted.

[0019]

According to the present invention, as described above, the object to be cleaned is simply inserted into the support hole for mounting the object to be cleaned and pushed down, and thereafter, the cleaning operation is performed for a set time. It is useful because it has a simple and rational structure that can be washed with one-touch, which is automatically pulled up from the liquid at the end of the operation and all operations are stopped and held as it is.

[Brief description of drawings]

FIG. 1 is a central longitudinal sectional view of an ultrasonic cleaner of the present invention.

FIG. 2 is a diagram showing an electrical control procedure of the ultrasonic cleaner of the present invention.

FIG. 3 is a view showing a usage mode of the ultrasonic cleaner of the present invention.

FIG. 4 is a view showing another embodiment of the ultrasonic cleaner of the present invention.

[Explanation of symbols]

 1 Cleaning Tank 2 Cleaning Tank Holding Base 3 Piezoelectric Element for Exciting Cleaning Tank 4 Electromagnet 5 Cleaning Object Support Plate 6 Magnetic Material 7 Coil Spring 8 Cover 10 Startup Switch 12 Timer A Ultrasonic Cleaner B Drawing Pen b'Pen Destination

Claims (2)

[Claims] 1. An electromagnet is provided at an upper end portion of a cleaning tank holding base for accommodating a cleaning tank having an external vibrator attached thereto, and an object to be cleaned is provided so as to cover an upper opening of the cleaning tank holding base. A magnetic body attracted to the electromagnet is attached to the lower surface of the object support plate, and a push-up means for returning is disposed between the object support plate to be cleaned and the cleaning tank holder to energize the electromagnet. When the magnetic support is energized to position the object support plate below by suction of the magnetic material and the vibrator is operated, the lower part of the object supported by the object support plate is placed in the cleaning tank. An ultrasonic cleaning device configured to be cleaned so that when the excitation of the electromagnet is erased, the object support plate is pushed back by the push-up means and the object to be cleaned is pulled up from the cleaning tank. 2. A timer is provided between the electromagnet and the vibrator of the cleaning tank and the power supply, and the cleaning tank holding table is provided with a switch for operating the timer when the support plate for the object to be cleaned is pushed down. 1. The ultrasonic cleaner according to 1.