JPH08309300A - Ultrasonic washer - Google Patents

Abstract

PURPOSE: To miniaturize equipment and also to perform thermal drying well by providing a washing liquid circulating system, a rinsing water circulating system and a thermal drying means and providing the thermal drying means with a heat source for heating fresh air flowing through a conducting pipe equipped with an intake for fresh air and a diffuser into a washing tank. CONSTITUTION: An ultrasonic vibrator transducer 25 is abutted from below on the bottom surface part of a washing tank 10 housing a material to be washed and equipped with a rotary barrel mechanism, and also a washing liquid circulating system 30 is provided, and a washing liquid is circulated between the washing tank 10 and a washing liquid tank 31 in which the washing liquid is stored by a prescribed quantity in advance. A rinsing water circulating system 40 for circulating a rinsing water between a rinsing water tank 41 for storing the rinsing water and the washing tank 10 is provided. Besides, a thermal drying means 50 for drying the material to be washed by hot air and a vacuum drying mechanism 70 for evacuating the washing tank 10 to perform drying are provided. The washing liquid and the rinsing water fed into the washing tank 10 are returned to the tanks 31, 41 by a returning system 60.

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, and more particularly to an ultrasonic cleaning device having a heat drying means.

[0002]

2. Description of the Related Art FIG. 5A shows a conventional structure. This conventional ultrasonic cleaning device 100 is provided with a cleaning tank 1 having an upper opening.
10, a plurality of ultrasonic vibrators 120 that come into contact with the bottom of the cleaning tank 110 from below to generate ultrasonic vibrations, a cleaning liquid tank 131 that stores a predetermined amount of cleaning liquid in advance, the cleaning liquid tank 131, and the cleaning tank 110. A cleaning liquid circulation system 130 for circulating a cleaning liquid between them, a rinse water tank 141 for storing a predetermined amount of rinse water in advance, and this rinse water tank 141
It has a rinse water circulation system 140 for circulating rinse water between the cleaning tank 110 and the cleaning tank 110, and a heat drying means 150 for drying the article to be cleaned with heated air after the rinse.

To explain these in detail, first, the cleaning tank 110.
Is a container that can be filled with cleaning liquid or rinsing water, and has a bottomed tubular shape. The inner bottom surface 110 which is the inner bottom surface of the cleaning tank 110
A is smooth, and the cleaning tank 110 is incorporated in the ultrasonic cleaning device 100 so that the inner bottom surface 110A is horizontal. In addition, the cleaning tank 110 has a lid 11
0B is provided, and the lid 110B is openable and closable.

A plurality of ultrasonic transducers 120 are arranged below the outside of the cleaning tank 110 in contact with the positions corresponding to the inner bottom surface 110A. At the time of cleaning, the plurality of ultrasonic vibrators 120 generate ultrasonic vibrations, which are transmitted to the inner bottom surface 110A of the cleaning tank 110, and are further transmitted to the cleaning liquid inside the cleaning tank through the inner bottom surface 110A. The sonic vibration is transmitted and the cleaning is performed.

The cleaning liquid circulation system 130 comprises a cleaning liquid communication pipe 132 and a cleaning liquid flow urging means for urging the flow of the cleaning liquid along the cleaning liquid communication pipe 132. The cleaning liquid communication pipe 132 is composed of the cleaning liquid communication pipe 132. It is composed of a cleaning liquid water supply pipe 133 and a cleaning liquid drainage pipe 134 which are arranged between the cleaning liquid tank 131 storing the cleaning liquid and the cleaning tank 110.

The cleaning liquid water supply pipe 133 is provided with a water supply pump 137 as a cleaning liquid flow urging means in the middle of this pipe. Further, in the cleaning liquid drain pipe 134, the cleaning liquid tank 131 is arranged below the cleaning tank 110. As a result, the cleaning liquid inside the cleaning tank 110 returns to the cleaning liquid tank 131 according to gravity, so that the cleaning liquid flow urging means of the cleaning liquid drainage pipe 134 is unnecessary.

The rinse water circulation system 140 comprises a rinse water communication pipe 142 and a rinse water flow energizing means for energizing the flow of rinse water along the rinse water communication pipe 142. The pipe 142 is composed of a rinse water supply pipe 143 and a rinse water drainage pipe 144 which are arranged between the rinse water tank 141 storing the rinse water and the cleaning tank 110.

The rinse water supply pipe 143 is provided with a water supply pump 147 as a rinse water flow energizing means in the middle of this pipe. Also, the rinse water drainage pipe 144
The rinse water tank 141 is arranged below the cleaning tank 110. As a result, the rinse water inside the cleaning tank 110 returns to the rinse water tank 141 according to gravity,
The rinse water flow urging means of the rinse water drainage pipe 144 is unnecessary.

FIG. 5 (B) is an enlarged view of the heat drying means shown in FIG. 5 (A). The heat-drying means 150 is provided at one end of the heat-supply pipe 151 having the inside of the cleaning tank 110 and the other end thereof having an outside air intake port 154, and at an intermediate position inside the heat-supply pipe 151. It is composed of a heat source.

That is, the heat supply pipe 151 is entirely constructed of a pipe that conducts from the outside to the inside of the side wall of the cleaning tank 110. Further, in the cleaning tank 110, one end thereof is formed in a crank shape so that the tip is located at a higher position, and a blowout port 153 is further provided at the tip. The blowout port 153 is directed to the side of the cleaning target housed inside the cleaning tank 110, and the cleaning target is more efficiently dried.

At the other end of the heat supply pipe 151, a region for accommodating the heater 152 as a heat source is formed, and an intake port 154 for the outside air is provided in the vicinity of the heater 152. The intake valve 154 for the outside air has a solenoid valve 15
5 is attached and can be opened and closed freely.

The heater 152 as a heat source is supplied with electric power from a power source provided outside the heat supply pipe 151 (not shown) to generate heat, and a connecting portion connected to the power source of the heater 152 is a heat source. The supply pipe 151 is exposed to the outside while maintaining the sealed state. Also this heater 1
A gap is formed around 52 between the heater 152 and the inner portion of the wall of the heat supply pipe 151. When the outside air taken in from the outside air intake port 154 passes through this gap. In addition, the structure is such that it is heated by the heater 152.

In the above-mentioned ultrasonic cleaning apparatus 100, at the time of cleaning, an object to be cleaned is put in the cleaning tank 110, the water supply pump 137 is operated, and the cleaning liquid in the cleaning liquid tank 131 is supplied to the cleaning tank. . At this time, each solenoid valve is the solenoid valve 1
All but 35 are closed.

After supplying a predetermined amount of cleaning liquid to the cleaning tank 110, the water supply pump 137 is stopped and all the electromagnetic valves are closed. Then, ultrasonic vibration is generated by the ultrasonic vibrator 120 and transmitted to the cleaning liquid via the bottom surface 110A of the cleaning tank 110, and the movement of the cleaning liquid in the vibrating state causes adhered substances such as dirt on the object to be cleaned. To be removed.

Thereafter, the solenoid valve 136 is opened, and the cleaning liquid flows from the cleaning tank 110 to the cleaning liquid tank 131 according to gravity.

Next, the solenoid valve 145 is opened and all the other solenoid valves are closed, and the feed water pump 147 is operated to supply the rinse water in the rinse water tank 141 to the cleaning tank 110. By supplying this rinsing water, the cleaning liquid remaining in each of the parts to be cleaned, the cleaning tank 110, the communication channel 111, and the like is rinsed, and then the solenoid valve 145 is closed and the solenoid valve 1 is closed.
46 is opened. Rinsing water is washed by the washing tank 11 according to gravity.
It flows from 0 to the rinse water tank 141 and returns.

When the drainage of the rinse water is completed, the object to be cleaned is dried. That is, the solenoid valve 155 is opened, and the external air compressing means is used from the outside air intake port 154.
Compressed air is sent in. The compressed air is heated as it passes through the gap around the heater 152, and is further heated by the heat supply pipe 1.
The object to be cleaned is blown from the blowout port 153 by being guided by 51. After this spraying is performed for a predetermined time, a series of cleaning operations is completed.

[0018]

However, in the above-described conventional example, the heat drying means 150 has the linear heat supply pipe 15.
The heater 152 is arranged inside the heat supply pipe 15
1 and the heater 152, air is circulated in the gap, and among these, the blowout port 1 of the heat supply pipe 151
Since the main part of the heat drying means 150 is disposed outside the cleaning tank 110 except for a part on the 53 side, the heat drying means 150 largely projects from the cleaning tank 110, and the apparatus is downsized. Was a big obstacle for me.

Further, since the heater 152 is located outside the cleaning tank 110, heat is radiated to the outside of the cleaning tank 110, resulting in poor thermal efficiency. As a means for coping with this, there is a method of arranging a heat insulating material around the heat supply pipe 151. However, this method increases the material cost of the apparatus and further increases the size of the heat drying means. There was a problem.

[0020]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an ultrasonic cleaning device which is capable of improving the disadvantages of the conventional example, downsizing the device, and favorably performing thermal drying.

[0021]

According to the present invention, a cleaning tank comprising a cleaning tank main body which is a bottomed container having an opening at the top and an openable / closable lid, and an ultrasonic wave which abuts the bottom of the cleaning tank from below. An ultrasonic transducer that generates vibration, a cleaning liquid tank that stores a predetermined amount of cleaning liquid in advance, a cleaning liquid circulation system that circulates the cleaning liquid between the cleaning liquid tank and the cleaning tank, and a rinse that stores a predetermined amount of rinse water in advance. It has a water tank, a rinse water circulation system for circulating rinse water between the rinse water tank and the cleaning tank, and a heat drying means for supplying heated air into the cleaning tank.

The above-mentioned heat drying means is provided with a conduction pipe having an outside air intake port at one end and an outlet port into the cleaning tank at the other end, and a heat source for heating the outside air flowing in the conduction pipe. ing.

Further, a structure in which a region for disposing the heat drying means is provided inside the lid is adopted. This aims to achieve the above-mentioned object.

[0024]

When the cleaning is performed with the above structure, first, the lid of the cleaning tank is opened, and the object to be cleaned is stored inside the cleaning tank. After storage, the lid is closed. Then, the cleaning liquid in the cleaning liquid tank is supplied to the cleaning tank by the cleaning liquid circulation system.

When a predetermined amount of cleaning liquid is supplied to the inside of the cleaning tank, the water supply is stopped, and ultrasonic vibration is generated by an ultrasonic vibrator that abuts the bottom of the cleaning tank from below. This ultrasonic vibration is transmitted to the cleaning liquid via the bottom surface of the cleaning tank, and the movement of the cleaning liquid in the vibrating state removes dirt and other deposits on the object to be cleaned.

When the removal of the deposits on the object to be cleaned is completed, the cleaning liquid circulating system drains the cleaning liquid in the cleaning tank to the cleaning liquid tank side.

When the drainage of the cleaning liquid is completed, the rinse water is supplied from the rinse water tank into the cleaning tank by the rinse water circulation system.

After the water is supplied, the rinsing water is used to wash away the cleaning liquid remaining in the cleaning tank, the object to be cleaned and the like due to the influence of the surface tension during cleaning. Then, the rinse water circulating system returns the rinse water inside the cleaning tank to the rinse water tank.

When the rinse water is drained from the inside of the washing tank,
Heat drying is performed. That is, the outside air is sent from the outside air intake port of the heat drying means, the outside air flows through the inside of the conduction pipe, is heated in the pipe, becomes heated air, and is discharged from the outlet port into the cleaning tank. . The discharged heated air accelerates the drying of the residual rinse water adhering to the object to be cleaned. With the above, the operation of each unit of the present invention is completed.

[0030]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIGS. FIG. 1A is an explanatory diagram showing the overall configuration of this embodiment.

In this embodiment, the cleaning tank 10 has a horizontal inner bottom surface, the ultrasonic vibrator 25 that abuts the bottom surface of the cleaning tank 10 from below to generate ultrasonic vibration, and the cleaning liquid is preliminarily provided. A cleaning liquid tank 31 that stores a fixed amount, a cleaning liquid circulation system 30 that circulates the cleaning liquid between the cleaning liquid tank 31 and the cleaning tank 10, a rinse water tank 41 that stores a predetermined amount of rinse water in advance, and this rinse water tank 41. An ultrasonic cleaning apparatus 1 that has a rinse water circulation system 40 that circulates rinse water between the cleaning tank 10 and a header region 17 having a predetermined internal space provided alongside the communication path in the cleaning tank 10. Is.

Further, the ultrasonic cleaning apparatus 1 includes a heat drying means 50 for drying an object to be cleaned with heated air and a vacuum drying mechanism 70 for vacuuming the inside of the cleaning tank 10 for drying.
And a return system 60 for returning the cleaning liquid or rinsing water, which has been supplied at a certain height or more inside the cleaning tank 10, to the cleaning tank 10, and a barrel mechanism for storing and rotating the object to be cleaned. It is provided inside the cleaning tank 10.

Each of the above-mentioned parts will be described in detail.

The cleaning tank 10 of the present embodiment has a strong structure and can be hermetically sealed in preparation for the case where the inside is evacuated by a vacuum drying mechanism 70 which will be described later. That is,
Cleaning tank main body 11 formed in a cylindrical shape, and cleaning tank main body 11
Of the cleaning tank body 11 and a lid portion 13 which is openably and closably provided at the upper opening end of the cleaning tank body 11.

The cleaning tank main body 11 is a cylindrical member made of steel and has a circular cross section in the axial direction, so that it has a structure excellent in durability against external pressure during internal vacuum. Further, a flange 11A is provided along the upper opening of the cleaning tank body 11, and the flange 13A provided on the lid 13 described later and the flange 11A have substantially the same size, and the lid 13 is closed. Sometimes they are arranged to correspond to each other.

The lid 13 has a shape in which a part of a spherical surface having a diameter larger than the outer diameter of the cleaning tank body 11 is cut off by a flat surface, the spherical surface side faces upward, and the side corresponding to the cut end is the cleaning tank body. It is arranged toward the 11 side. Due to this spherical shape, the structure has excellent durability against external pressure.
Further, because of the spherical shape, a space portion is formed inside the lid portion 13, and the heat drying means 50 is arranged with the space portion as an arrangement area.

As described above, the flange 13A is provided on the cleaning tank body 11 side of the lid portion 13, and when the lid portion 13 is closed, this flange 13A is the flange 11A of the cleaning tank body 11 and the packing 11a. To face each other. The packing 11a is the cleaning tank body 11 described above.
It is carried in a groove 11b provided in advance on the flange 11A of the cleaning tank main body 11 by this packing 11a.
The airtightness between the lid 13 and the lid 13 is maintained.

The lid 13 is connected to the cleaning tank main body 11 at the right end in FIG. 1 (A) via a pivot fulcrum 16 and pivot arms 14 and 15, and one pivot arm is provided. The rotating end of 14 is fixed to the cleaning tank main body 11, and the rotating end of the other rotating arm 15 is connected to the lid 13. As a result, the lid 13 is rotatable with respect to the cleaning tank body 11.

A vent 13a is provided at the center of the upper part of the lid 13 so as to communicate from the inside of the cleaning tank 10 to the outside, and an opening / closing lid 13b larger than the vent 13a is provided outside the vent 13a. It is provided. This open / close lid 13b
Is rotatable in the outer direction of the cleaning tank 10, and a seal member (not shown) is disposed at a position where it abuts on the edge portion of the ventilation port 13a. Further, the opening / closing lid 13b is always closed. A weight 13c that biases with a constant force is provided.

As a result, when the internal pressure of the cleaning tank 10 rises, the opening / closing lid 13b is pushed by the internal pressure to be in the open state (the state of two-dot chain line in the figure), and vacuum drying described later is performed. At this time, it is closed, and the sealing member prevents outside air from entering the inside of the cleaning tank. Further, a member for restricting the rotation of the opening / closing lid 13b may be provided so that the opening / closing lid 13b does not open more than 90 degrees.

A bottom plate 12 is attached below the cleaning tank main body 11, and the bottom plate 12 is fixed to the cleaning tank main body 11 by means such as welding, welding, and adhesion. The hermeticity with the bottom plate 12 is maintained. By fixing the bottom plate 12 to the cleaning tank body 11, a bottomed container is formed. The inner bottom surface 10A, which is the inner bottom surface of the container, is formed to be smooth, and the cleaning tank 10 is attached to the ultrasonic cleaning device 1 so that the inner bottom surface 10A is in a horizontal state.

A plurality of ultrasonic transducers 25 are disposed in contact with the bottom plate 12 below the outside of the cleaning tank 10 having the above-mentioned structure. In this embodiment, four ultrasonic transducers 2
Although 5 is provided, it is not limited to this number and more may be provided. The ultrasonic oscillator 25 is a bolt-tightened oscillator, and generates ultrasonic vibration when it is applied with a voltage having an oscillation frequency by the oscillation circuit 26.

A barrel mechanism 20 is disposed inside the cleaning tank 10. The barrel mechanism 20 includes a barrel body 21.
It has a support arm 22, and a rotation driving means (not shown). The barrel main body 21 is a regular hexagonal storage container capable of storing an object to be cleaned therein.

The barrel main body 21 is made of patching metal, and the innumerable holes having a diameter of 6 [mm] formed on the surface of the patching metal do not interfere with each operation of this embodiment described later. . That is, during cleaning, the transmission of ultrasonic vibrations through the cleaning liquid is not hindered, and rinse water is easily distributed. Further, hot air is easily distributed to the inside during thermal drying.

A rotation fulcrum 23 is provided at the center of the hexagonal shape of the barrel body 21 (see FIG. 1).
This rotation fulcrum is also provided on the side opposite to the surface shown in (A), but is not shown here.) At this rotation fulcrum 23, a rotation driving means (not shown) is engaged via a transmission mechanism. I am fit.

The support arm 22 is installed inside the cleaning tank 10 on the inner wall of the cleaning tank main body 11 as shown in the drawing (in the same manner as the rotation fulcrum of the barrel main body 21, the barrel main body 2).
Another supporting arm is provided on the opposite side of 1, but not shown). The support arm 22 is bent in a U-shape at its central portion, and the U-shaped bent portion rotatably and detachably carries the rotation fulcrum of the barrel main body 21.

Although the barrel mechanism 20 is constructed as described above, the shape of the barrel body 21 may be circular instead of regular hexagon or other regular polygon.

As described above, the cleaning tank 10 performs various operations such as cleaning, rinsing, and drying of the object to be cleaned. Of these operations, cleaning and rinsing are performed by supplying cleaning liquid and rinsing water to the inside of the cleaning tank 10. Therefore, this ultrasonic cleaning device 1
The cleaning liquid circulation system 30 and the rinse water circulation system 40 for supplying and draining the cleaning liquid and the rinse water, and the cleaning liquid tank 31 and the rinse water tank 41 which are the supply sources of the cleaning liquid and the rinse water are provided in the.

Of these, the cleaning liquid circulation system 30 comprises a cleaning liquid communication pipe 32 and a cleaning liquid flow urging means for urging the flow of the cleaning liquid along the cleaning liquid communication pipe 32. Is composed of a cleaning liquid water supply pipe 33 and a cleaning liquid drain pipe 34 arranged between the cleaning liquid tank 31 storing the cleaning liquid and the cleaning tank 10.

In the cleaning liquid water supply pipe 33, a water supply pump 37 as a cleaning liquid flow urging means is provided in the middle of this pipe. On the other hand, in the cleaning liquid drainage pipe 34, the cleaning liquid tank 31 is arranged below the cleaning tank 10 by utilizing the property that the liquid flows down from a high place to a low place (see FIG. 3), so that the cleaning liquid flow urging means is provided. Is unnecessary. Further, in this case, the cleaning liquid drainage pipe 34 is arranged so that the cleaning liquid is guided to the cleaning liquid tank 31 without delay.
In all regions of 4, the nozzles are arranged in the horizontal direction, or in the inclined and descending direction with respect to the direction from the cleaning tank 10 to the cleaning liquid tank 31.

Further, the cleaning liquid water supply pipe 33 is bifurcated between the water supply pump 37 and the cleaning tank 10 and joins again on the downstream side thereof. The filter 39 and the filter 39 are provided on one of the separation points.
Two manual valves 39A and 39B are provided in front of and behind, and only the manual valve 39C is provided on the other side.

Normally, the manual valve 39C is closed and the manual valve 39C is closed.
By opening A and 39B and flowing the cleaning liquid to the filter 39 side, impurities in the cleaning liquid are removed and the cleaning liquid is always supplied to the cleaning tank 10 in a clean state. On the other hand, when the cleaning ability of the filter 39 is lowered, the manual valve 39A,
By closing 39B and opening the manual valve 39C,
The structure is such that the filter 39 can be replaced even when the cleaning liquid flows.

The above-mentioned cleaning liquid tank 31 has a capacity sufficient to supply the cleaning liquid to the cleaning tank 10. The cleaning liquid tank 31 may be provided with a valve that allows air to flow therethrough to communicate with the outside. As a result, it is possible to avoid a state in which the flow of the cleaning liquid is hindered due to a change in the internal pressure of the cleaning liquid tank 31.

The rinse water circulation system 40 comprises a rinse water communication pipe 42 and a rinse water flow energizing means for energizing the flow of rinse water along the rinse water communication pipe 42.
The rinse water communication pipe 42 is provided between the rinse water tank 41 storing the rinse water and the cleaning tank 10, and the rinse water supply pipe 43 and the rinse water drainage pipe 44.
It consists of

In the rinse water supply pipe 43, a water supply pump 47 is provided in the middle of this pipe as a rinse water flow urging means. On the other hand, in the rinsing water drainage pipe 44, by arranging the rinsing water tank 41 below the cleaning tank 10 by utilizing the property that the liquid flows down from a high place to a low place (see FIG. 3), the rinsing water flow can be reduced. No biasing means is required. Further, in this case, the rinsing water drainage pipe 44 allows the rinsing water to be guided to the rinsing water tank 41 without any lag.
In the entire region of the rinse water drainage pipe 44, in the horizontal direction,
Alternatively, it is arranged so as to descend and incline in the direction from the cleaning tank 10 to the rinse water tank 41.

The rinsing water supply pipe 43 is bifurcated between the water supply pump 47 and the cleaning tank 10 and joins again on the downstream side. The filter 49 and the filter 4 are provided on one of the separation points.
Two manual valves 49A and 49B are provided in front of and behind 9,
On the other hand, only the manual valve 49C is provided.

Normally, the manual valve 49C is closed and the manual valve 49C is closed.
By opening A and 49B and flowing rinse water to the filter 49 side, impurities in the rinse water are removed,
The cleaning tank 10 is always supplied in a clean state. On the other hand, when the cleaning ability of the filter 49 is reduced, the manual valve 49
By closing A and 49B and opening the manual valve 49C, the filter 49 can be replaced even when the rinse water is flowing.

The rinse water tank 41 is the cleaning tank 10
It has a volume enough to supply sufficient rinsing water.
The rinse water tank 41 may be provided with a valve that allows air to flow therethrough to communicate with the outside. As a result, it is possible to avoid a state in which the flow of the rinse water is hindered due to a change in the internal pressure of the rinse water tank 41.

The above-mentioned cleaning liquid water supply pipe 33, cleaning liquid drainage pipe 34, rinse water supply pipe 43, and rinse water drainage pipe 44 are not all directly connected to the cleaning tank 10. The cleaning tank 10 is connected to the cleaning tank 10 via a header area 17. This header area 17
Are connected to the cleaning tank 10 via a connecting flow path 18 extending horizontally from the cleaning tank 10. FIG. 1B is a partial side view of the header area 17 seen from the direction of arrow A in FIG.

The header area 17 is a container having an inner space of a rectangular parallelepiped shape, and the inner bottom surface 17 is provided in this inner space.
A is formed. In addition, an inner bottom surface 18A is also formed in the communication flow path 18 between the header region 17 and the cleaning tank 10, and the inner bottom surfaces 17A, 18A and the inner bottom surface 10A of the cleaning tank 10 have the same height. It is set horizontally.

Further, each of the cleaning liquid water supply pipe 33, the cleaning liquid drainage pipe 34, the rinse water water supply pipe 43, and the rinse water drainage pipe 44 is close to the connection portion with the header region 17, and an electric signal is provided. Solenoid valves 35, 36, 45, and 46, which are opening / closing valves that are opened and closed by, are provided.
When these connection states are explained based on FIG. 1 (B),
In each of the above-mentioned pipes, the cleaning liquid water supply pipe 33 and the cleaning liquid drainage pipe 34 are both in the header region 1 from the horizontal direction.
7 is connected to the left side, especially the cleaning liquid drainage pipe 3
4 has an inner bottom surface 34A formed therein and is connected to the inner bottom surface 17A of the header region 17 so as to have a uniform height.

The rinsing water supply pipe 43 and the rinsing water drainage pipe 44 are both connected to the right side of the header region 17 from the horizontal direction, and in particular, the rinsing water drainage pipe 44 is provided inside thereof. The formed inner bottom surface 44A is connected to the inner bottom surface 17A of the header region 17 so as to have a uniform height. Here, the width of the header region 17 in the horizontal direction in FIG. 1B is set to a certain interval so as not to interfere with each other when the cleaning liquid or the rinse water flows.

The header area 17 and the pipes 33, 34, 4
By connecting 3 and 44 as described above, the cleaning liquid or rinsing water from the cleaning tank 10 can be used for each drainage pipe 3
When being drained through 4, 44, these cleaning liquids or rinsing water are the inner bottom surface 10A of the cleaning tank 10, the inner bottom surface 18A of the communication channel 18, the inner bottom surface 17A of the header region 17, and the drainage pipes 34, The structure is such that it does not remain on the inner bottom surfaces 34A, 44A of the horizontal portion of the connecting portion 44 of 44.

Next, the return system 60 will be described. In the present embodiment, when cleaning or rinsing is performed, the supply of cleaning liquid or rinsing water to the cleaning tank 10 is continued until these operations are completed. Due to the continuation of the water supply, the return system 60 causes the cleaning liquid tank 31 or the rinsing water tank 4 to transfer the cleaning liquid or rinsing water that exceeds a certain height inside the cleaning tank 10.
Mainly composed of each pipe returned to 1.

That is, as shown in FIG. 1 (A), a weir portion 61 disposed in the washing tank 10 and having an upper end portion set to a predetermined height, and a cleaning liquid that exceeds the weir portion 61. Alternatively, a conductive pipe 62 for guiding the rinse water to the outside of the cleaning tank 10 and a T connected to the conductive pipe 62 and bifurcated at the downstream end.
The T-shaped pipe 63, the cleaning liquid return pipe 64 that is connected to the cleaning liquid tank 31 from one downstream end of the T-shaped pipe 63, and the rinse water from the other downstream end of the T-shaped pipe 63. Rinse water return pipe 6 connected to the tank 41
The return system 60 is composed of 5 and 5.

More specifically, the dam portion 61 is attached to the inner wall of the cleaning tank body 11 so as to project toward the center of the cleaning tank body 11. By setting the height of the upper end of the weir portion 61, the cleaning tank 1 can be used during the cleaning process or the rinsing process.
The amount of cleaning liquid or rinsing water to be secured inside is determined.

The conducting pipe 62 is provided horizontally so as to guide the cleaning liquid or rinsing water that has passed over the dam portion 61 to the outside of the cleaning tank 10 or is inclined so as to descend toward the outside. At the downstream end of this conduction pipe 62,
In addition to being connected to the upstream end of the T-shaped pipe 63 described above, it is also connected to a vacuum drying mechanism 70 described later. That is, in this embodiment, the cleaning tank 10 is used when performing vacuum drying.
This conducting pipe 62 is shared as a pipe for guiding the inside air and the like to the outside.

The T-shaped pipe 63 has a so-called letter T shape in the alphabet, and is arranged in the ultrasonic cleaning apparatus 1 in an inverted state. The upstream end, which is the upper end in this state, is connected to the conduction pipe 62. Further, the T-shaped pipe 63 has a bifurcated downstream end connected to a cleaning liquid return pipe 64 and a rinse water return pipe 65 via electromagnetic valves 66 and 67, respectively.

Both the cleaning liquid return pipe 64 and the rinse water return pipe 65 are provided so that the cleaning liquid and the rinse water are returned to the cleaning liquid tank 31 and the rinse water tank 41 according to gravity, respectively. In the entire area of the return pipe 65, in the horizontal direction, or from the cleaning tank 10 to the cleaning liquid tank 31 and the rinse water tank 4
It is arranged so as to descend and tilt in the direction toward 1.

The above-described return system 60 makes it possible to continuously supply and return water, and in the cleaning process, the cleaning liquid reciprocates between the cleaning liquid tank 31 and the cleaning tank 10 to supply the cleaning liquid water supply pipe 33. Since the filter 39 provided in the middle of the process removes dirt and the like in the cleaning liquid, the cleaning efficiency is improved. Further, in the rinsing step, the flow of rinsing water inside the cleaning tank 10 is activated, and the rinsing efficiency is improved.

Next, the heat drying means 50 is shown in FIG.
And it demonstrates based on FIG. 2 is shown in FIG.
The heat drying means 50 as seen from the arrow B direction is shown. The heat drying means 50 includes the conduction pipe 51 arranged inside the lid 13 as described above, and the heat source 52 for heating the outside air flowing in the conduction pipe 51.

The conducting pipe 51 is an annular pipe having a hollow inside, and the holding piece 5 provided inside the lid portion 13
It is sandwiched by 6,56. An outside air intake port 54 and an outside air outlet port 53 are provided at both ends of the annular conduction pipe 51 in the diametrical direction. The outside air intake port 54 is provided so as to be electrically connected from the inside to the outside of the lid portion 13, and an openable and closable electromagnetic valve 55 is attached to the tip end portion thereof. The outlet 53 is
Inside the cleaning tank 10, it is attached toward the barrel body 21 side. And these are the outside air intakes 5
4 through the hollow inside of the conduction pipe 51
3 communicate with each other, and the outside air flows through these paths and is sent into the cleaning tank 10.

A flexible sheathed heater 52 as a heat source is wound around the conduction pipe 51.
The flexible sheathed heater 52 is particularly flexible among insulated heat generating tubes in which a heating wire is housed in a metal tube whose inside is insulated with powder of lime, alumina, magnesia or the like. As a result, as shown in FIG. 2, it is possible to wind the conducting pipe 51 at equal intervals over the circumference thereof. The flexible sheathed heaters 52 may be arranged more densely than shown in FIG. Thereby, a higher heat generation amount can be supplied.

A cable connected to an external power supply source (not shown) is provided at both ends of the flexible sheathed heater 52, and the cable is connected to the outside via an insulating sleeve 57 provided on the lid 13. Is in communication with. Since the insulating sleeve 57 is made of an insulating material and has a sealing property, it prevents electric leakage and keeps the cleaning tank 10 airtight.

In this embodiment, in order to take in outside air,
Compressed air injected by an external air compression means or the like is sent from the outside air intake port 54 into the inside of the conduction pipe 51. A fan or the like that satisfies the performance required as the outside air intake means is introduced into the outside air intake port 54. You can equip it.

Further, in the present embodiment, the blow-out port 53 is arranged only at one place farthest from the outside air intake port 54 so that the temperature can be raised most when flowing through the inside of the conduction pipe 51. However, a plurality of outlets 53 may be provided along the circumference of the conduction pipe 51. As a result, the object to be cleaned is
Since the heated air can be blown uniformly, the heat drying is uniformly performed.

Next, the vacuum drying mechanism 70 will be described. The vacuum drying mechanism 70 includes a conduction pipe 62 that conducts inside the cleaning tank 10, an exhaust pipe 72, a vacuum pump 71, and an exhaust port 7.
And 3. The conduction pipe 62 is the return system 6 described above.
In 0, it functions as a pipe for guiding the cleaning liquid or rinse water overflowing from the cleaning tank 10 to the outside of the cleaning tank 10. However, in the vacuum drying mechanism 70, the air and water vapor inside the cleaning tank 10 are guided to the outside of the cleaning tank 10. It functions as a pipe. The downstream end of the conduction pipe 62 is divided in the vertical direction of FIG. 1A, the lower part is connected to the T-shaped pipe 63 of the circulation system, and the upper part is connected to the exhaust pipe 72 of the vacuum drying mechanism 70. Has been done. Further, the exhaust pipe 72 is connected to the vacuum pump 71 at an upper portion thereof, and the vacuum pump 71 is provided with an exhaust port 73 for exhausting air, water vapor and the like in the cleaning tank 10 urged by the vacuum pump 71. .

Next, the control system 80 of the ultrasonic cleaning device 1 will be described. The control system 80 is housed in the control box shown in FIG. FIG. 4 is a configuration diagram of the control system 80. According to this, in this control system 80, in each configuration of the above-described present embodiment, each solenoid valve 35,
36, 45, 46, 55, 66, 67, water supply pump 3
7, 47, the vacuum pump 71, the oscillation circuit 26 of the ultrasonic transducer 25, the heater 52, the rotation drive means of the barrel mechanism 20, the operation sequence, timing, conditions, etc. are all stored, and the operation command is issued in accordance with these conditions. And a sequencer unit 81 that receives the operation command, transmits an operation signal to the relay unit 83, and receives signals from various sensors provided in each unit of the ultrasonic cleaning device 1
And a relay unit 83 that receives an operation signal to turn on / off a switch such as a starting power source for each of the above-mentioned operating means.

The operation of each part of the ultrasonic cleaning apparatus 1 described later is performed according to the order of the operation, the duration of the operation, etc. which are preset by the sequencer section 81. Further, the temperature inside the cleaning tank 10 is sensed by a temperature sensor provided inside the cleaning tank 10, and the temperature inside the cleaning tank 10 is adjusted by a heat source (not shown) so that cleaning and rinsing can be performed at a desired temperature. Control and cleaning tank 10
When the liquid level is detected by the level sensor attached inside, the barrel mechanism 20 operates, and the water supply pump 3
The sequencer unit 81 also performs control corresponding to changes in external conditions such as an emergency stop of 7, 47.

The operation of this embodiment will be described. The operation of this embodiment is roughly divided into four steps of cleaning, rinsing, heat drying and vacuum drying.

First, as a preparation before the operation, the barrel body 21 accommodating the object to be cleaned is mounted inside the cleaning tank 10, and the lid 13 of the cleaning tank 10 is closed. At this point, all solenoid valves 35, 36, 45, 46, 55, 66, 67 are closed.

Next, the cleaning operation is performed. Solenoid valve 35,
66 is opened, the water supply pump 37 is operated, and the cleaning liquid is supplied from the cleaning liquid tank 31 into the cleaning tank 10 through the cleaning liquid water supply pipe 33. When the cleaning liquid is supplied to a certain height inside the cleaning tank 10, the rotation driving means of the barrel mechanism 20 starts the rotation of the barrel main body 21. Further, the oscillation circuit 26 causes the ultrasonic transducers 25 having a plurality of oscillation frequency voltages to be transmitted. The ultrasonic vibration is transmitted to the cleaning liquid in the cleaning tank 10 through the bottom plate 12. At this time, the object to be cleaned is rotated in the barrel main body 21 so that ultrasonic waves are uniformly transmitted through the cleaning liquid and the dirt and the like on the surface thereof are removed.

After that, the supply of the cleaning liquid is continued for a predetermined time, and the cleaning liquid that has passed over the weir portion 61 inside the cleaning tank 10 flows along the cleaning liquid return pipe 64 via the electromagnetic valve 66 according to the gravity and the cleaning liquid tank. 31 Returned to the inside. This time,
Dirt and the like removed from the object to be cleaned are also returned to the cleaning liquid tank 31 together with this cleaning liquid. Then, the flow of water from the cleaning liquid tank 31 toward the cleaning tank 10 is again urged by the water supply pump 37, the dirt is filtered off by the filter 39 provided on the way, and the cleaning liquid is cleaned and reaches the cleaning tank 10. To do.

After repeating the above-mentioned water supply and return, the water supply pump 37 is stopped, and the application of the voltage of the oscillation circuit 26 to the ultrasonic vibrator 25 is also stopped. Then, the solenoid valve 35
Is closed and the solenoid valve 36 is opened. As a result, the cleaning liquid is drained from the cleaning tank 10 through the communication flow path 18, the header region 17, the electromagnetic valve 36, and the cleaning liquid drainage pipe 34. At this time, the inner bottom surface 10A of the cleaning tank 10, the inner bottom surface 18A of the communication channel 18, the inner bottom surface 1 of the header region 17
7A, since the inner bottom surface 34A of the cleaning liquid drainage pipe 34 is uniformly set at the same height and horizontally, it should remain except for a small amount attached to various places due to surface tension or the like. Instead, the cleaning liquid returns to the cleaning liquid tank 31.

Even after the drainage of the cleaning liquid is completed, the barrel mechanism 20 continues to rotate, whereby the cleaning liquid remaining on the object to be cleaned is shaken off. Further, the electromagnetic valve 55 is opened, compressed air is sent from the outside air intake port 54 of the heat drying means 50 by the external air compression means, the compressed air is ejected from the blowout port 53, and the inside of the barrel main body 21 is discharged. It promotes the removal of the cleaning liquid adhering to the object to be cleaned. Further, the compressed air is sent to the inside of the cleaning tank 10 so that the solenoid valve 3
The flow of air toward 6, 6 is urged, and the cleaning liquid attached to each part is urged to move toward these electromagnetic valves 36, 66.

The above-mentioned cleaning liquid draining operation is performed for several seconds to 1
After about 0 seconds, the solenoid valves 35, 55, 66 are closed and the rinsing process is started.

First, the solenoid valves 45 and 67 are opened and the water supply pump 47 is operated. As a result, the rinse water is urged to flow from the rinse water tank 41 to the cleaning tank 10 to supply water. This water supply is continued for a predetermined time after reaching the position of the weir portion 61 inside the cleaning tank 10. Inside the cleaning tank 10, the cleaning liquid that has passed over the weir 61 is returned to the inside of the rinse water tank 41 via the solenoid valve 67 along the rinse water return pipe 65 according to gravity. By repeating this water supply and return, the rinsing water is in a constant flow state inside the cleaning tank 10, and the cleaning liquid attached and remaining in various places of the cleaning tank 10 is effectively washed away.

Since the barrel mechanism 20 continues to rotate while the water is being supplied, the rinse water inside the barrel body 21 is in a fluidized state due to this rotation, and the cleaning liquid adhering to the object to be cleaned is Rinse with rinse water. Further, at the time of this water supply, the ultrasonic oscillator 25
May generate ultrasonic vibrations. Due to the transmitted ultrasonic vibration, the cleaning liquid remaining attached inside the cleaning tank 10 is rinsed off more effectively.

The rinse water returned to the rinse water tank 41 is again urged by the water supply pump 47 to flow from the rinse water tank 41 to the cleaning tank 10, and a filter 49 provided in the middle of the rinse water causes impurities in the rinse water to flow. Are filtered out, the cleaning liquid is cleaned and reaches the cleaning tank 10.

After the above water supply and return are repeated, the water supply pump 47 is stopped. Then, the solenoid valve 45 is closed and the solenoid valve 46 is opened. As a result, the rinse water passes through the communication flow path 18, the header region 17, the electromagnetic valve 46, and the rinse water drainage pipe 44, and the rinse water is drained from the cleaning tank 10. At this time, the inner bottom surface 10A of the cleaning tank 10,
Since the inner bottom surface 18A of the communication flow path 18, the inner bottom surface 17A of the header region 17, and the inner bottom surface 44A of the rinse water drainage pipe 44 are uniformly set at the same height and horizontally, the surface tension, etc. The cleaning liquid returns to the cleaning liquid tank 31 without remaining, except for a small amount of rinse water adhering to various places due to the cause. The barrel mechanism 20 also rotates during drainage of the rinse water, whereby the rinse water adhering to the object to be cleaned is shaken off.

After the drainage is completed, the process proceeds to the heat drying process. First, the electromagnetic valve 55 is opened, electric power is supplied to the heater 52 to heat it, and compressed air is sent from the outside air intake port 54 by an external air compression means. The compressed air sent in is heated by the flexible sheathed heater 52 wound on the outside of the conduction pipe 51 when flowing along the conduction pipe 51, becomes heated air, and is blown onto the barrel main body 21 from the blowout port 53. Therefore, the removal of the rinse water adhering to the object to be cleaned in the barrel body 21 is promoted.

At this time, since the heat drying means 50 is installed inside the lid portion 13, most of the heat generated from the flexible sheathed heater 52 is transferred to the inside of the cleaning tank 10, so that high thermal efficiency is achieved. Can be realized. Further, since the flexible sheathed heater 52 is arranged along the annular conduction pipe 51, the heat generated from the flexible sheathed heater 52 is uniformly transferred from the circumferential direction to the object to be cleaned.

When the pressure inside the cleaning tank 10 rises to a certain level due to the compressed air being sent in, the opening / closing lid 13b provided on the upper portion of the lid 13 moves upward against the gravity acting on the weight 13c. It is pushed up and released. This prevents excessive pressure rise inside the cleaning tank 10,
The supply of outside air is smooth.

The heat drying means 50 may use a vacuum pump 71 instead of the external air compressing means. That is,
Close all the solenoid valves except the solenoid valve 55, and set the heater 5
2 is supplied with electric power to operate the vacuum pump 71. As a result, as the internal pressure of the cleaning tank 10 decreases, the outside air is sucked in through the outside air intake port 54, and the heated outside air is supplied to the inside of the cleaning tank 10 through the blowout port 53.
Internal drying is promoted.

After the above-mentioned thermal drying is performed for several seconds to 20 seconds, a vacuum drying process is performed. At this time, all the electromagnetic valves are closed to operate the vacuum pump 71. As a result, the pressure inside the cleaning tank 10 is reduced, and along with this, the rinse water inside the cleaning tank 10 is boiled and vaporized and evaporated, and this vaporized rinse water is exhausted by the vacuum pump 71 together with the air inside the cleaning tank 10. It is discharged from the mouth 73 to the outside.

At this time, the inside of the cleaning tank may be heated by the flexible sheathed heater 52 at the same time as the vacuum drying. The infrared rays generated from the flexible sheathed heater 52 heat the inside of the cleaning tank 10 and the object to be cleaned,
Drying is accelerated.

As described above, four steps of cleaning, rinsing, heat drying and vacuum drying are performed, the electromagnetic valve 55 is opened to return the inside of the cleaning tank 10 to atmospheric pressure, and the lid 13 is opened to open the cleaning tank. The barrel main body 21 is taken out from the inside of the 10, and the object to be cleaned is taken out from the inside of the barrel main body 21, and the operation of the present embodiment is completed.

[0098]

According to the present invention as set forth in claim 1, since the heat drying means is arranged inside the lid portion, the heat drying means does not project to the outside of the cleaning tank unlike the conventional case.
As a result, the ultrasonic cleaning device can be downsized.

Further, since the heat source is disposed inside the lid, the heat generated from the heat source is stored in the cleaning tank,
As a result, it became possible to perform heat drying efficiently. Furthermore, since the heat generated from the heat source directly reaches the object to be cleaned inside the cleaning tank, it becomes possible to further accelerate the thermal drying.

In addition to the effect of the present invention as set forth in claim 1, the present invention as set forth in claim 2 uses a flexible sheathed heater as a heat source. It has become possible to wind it uniformly around the conduction pipe. As a result, the outside air flowing through the inside of the conduction pipe is uniformly heated, so that the outside air can be efficiently heated, and along with this, the thermal drying can be promoted.

In addition to the effects of the present invention as set forth in claim 2, the present invention as set forth in claim 3 has a ring-shaped conducting pipe, and an intake port and an outlet port for outside air are provided at both ends in the diameter direction of the conducting pipe. Since the structure is provided, the outside air circulates through the longest path in the conduction pipe, and thus the outside air can be heated most, so that the thermal drying can be performed more effectively.

Further, since the flexible sheathed heater is wound along the conducting pipe, the heat generated by the flexible sheathed heater uniformly heats the object to be cleaned in the circumferential direction, thereby promoting thermal drying. It has become possible.

According to the present invention of claim 4, in addition to the above-mentioned effects, since the opening / closing lid is provided on the upper portion of the lid, the opening / closing lid is always opened when the inside of the washing tank is raised to perform washing. The internal pressure of the tank can be reduced, and the excessive increase in internal pressure of the cleaning tank associated with the supply of heated external air effectively eliminates the situation of interrupting the supply of further external air, thereby continuously supplying the external air. This makes it possible to blow a constant amount of heated outside air onto the object to be cleaned.

Further, since it is constructed and functions as described above, it is possible to provide an excellent ultrasonic cleaning device which has never been used and which can always perform thermal drying effectively.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of the present invention, and FIG.
FIG. 1 is a schematic diagram showing the entire structure, and FIG. 1B is a partially cutaway view of the header area of one embodiment seen from the direction of arrow A in FIG. 1A.

FIG. 2 is a bottom view of the heat drying means of the ultrasonic cleaning device disclosed in FIG. 1, viewed from the direction of arrow B.

FIG. 3 is an explanatory diagram showing a schematic arrangement of each part of the ultrasonic cleaning device disclosed in FIG.

FIG. 4 is a block diagram showing a control system of the ultrasonic cleaning device disclosed in FIG.

FIG. 5 is a diagram showing a conventional ultrasonic cleaning apparatus, and FIG.
5A is an explanatory view with a part omitted, and FIG.
It is sectional drawing which expanded the connection flow path part of (A).

[Explanation of symbols]

 1 Ultrasonic Cleaning Device 10 Cleaning Tank 11 Cleaning Tank Main Body 13 Lid 13a Vent 13b Opening / Covering 25 Ultrasonic Cleaning Device 30 Cleaning Liquid Circulation System 31 Cleaning Liquid Tank 40 Rinsing Water Circulation System 41 Rinsing Water Tank 50 Thermal Drying Means 51 Conductive Pipe 52 Flexible Sheath heater (heat source) 53 Air outlet 54 Intake of outside air

Claims (4)

[Claims] 1. A cleaning tank comprising a cleaning tank main body, which is a bottomed container having an upper opening, and an openable / closable lid, and an ultrasonic vibrator for abutting the bottom of the cleaning tank from below to generate ultrasonic vibrations. A cleaning liquid tank that stores a predetermined amount of cleaning liquid in advance; a cleaning liquid circulation system that circulates the cleaning liquid between the cleaning liquid tank and the cleaning tank; a rinse water tank that stores a predetermined amount of rinse water in advance; and this rinse. It has a rinse water circulation system that circulates the rinse water between the water tank and the cleaning tank, and heat drying means for supplying heated air to the inside of the cleaning tank, and the heat drying means has one end of the outside air. A conduction pipe having an intake port and a blowing port into the cleaning tank at the other end,
An ultrasonic cleaning device comprising: a heat source for heating the outside air flowing through the conduction pipe; and a region for disposing a heat drying unit inside the lid portion. 2. The ultrasonic cleaning device according to claim 1, wherein the heat source of the heat drying means is a flexible sheathed heater, and the flexible sheathed heater is wound along the conducting pipe. 3. The conductive pipe is formed in a hollow ring shape, and the intake port for the outside air and the blow-out port are arranged at both ends of the conductive pipe in the diametrical direction. Ultrasonic cleaning device. 4. An outer surface of the lid portion is provided with a ventilation port that communicates with the inside of the cleaning tank, and the ventilation port is constantly urged in a direction to be closed and is opened as the pressure inside the cleaning tank rises. An opening / closing lid is provided.
The ultrasonic cleaning device described.