JPH11290803A - Ultrasonic cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize an ultrasonic cleaning device while a cleaning liquid is purified. SOLUTION: This device is provided with a cylindrical barrel 2, a rotatively holding mechanism wherein one end part side of the barrel 2 is freely rotatably held in an inclined state by raising it higher to some degree than the other side of the barrel 2, a barrle driving mechanism for driving rotatively the barrel 2, a spiral-like helical board mechanism 5 for conveying a material to be cleaned by rotation of the barrel 2, an ultrasonic cleaning tank for dipping one end part side to the barrel 2 into a liquid, and an ultrasonic oscillator 8 for cleaning ultrasonically via the cleaning liquid inside the ultrasonic cleaning tank. The ultrasonic oscillator 8 is installed at a position shifted to some degree to a rotative direction downstream side of the barrel 2 from on a line wherein a central axis of the barrel 2 is vertically lowered onto the ultrasonic cleaning tank.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic cleaner, and more particularly to an ultrasonic cleaner of a type for cleaning while transferring an object to be cleaned.

[0002]

2. Description of the Related Art There are various types of ultrasonic cleaners conventionally. For example, as shown in (a) Japanese Patent Application Laid-Open No. 8-299926, (a) a method in which objects to be washed are stored in a basket randomly or in a stacked state and water-based ultrasonic cleaning or water-based jet cleaning is performed. Then, the objects to be cleaned are arranged in a basket (barrel), and then ultrasonically cleaned while moving them up and down while moving in water. Further, (c) a cylindrical barrel is laid on one side and There is a method in which aqueous ultrasonic cleaning or aqueous jet cleaning is performed while moving to the other side.

[0003] Among them, in the above (c), for example, a rotary basket (barrel) containing objects to be cleaned is placed sideways, and this is placed in a water tank (washing liquid tank) and rotated and transferred, and the inner wall is moved. The shower cleaning is performed while moving the object to be cleaned by the spiral feed mechanism provided in the apparatus.

[0004]

However, in each of the above-mentioned conventional examples, the method of carrying out aqueous ultrasonic cleaning or aqueous jet cleaning by storing the objects to be cleaned (a) randomly or in a stacked state in a basket. However, since the cleaning is performed at a fixed position, there is an inconvenience that cleaning unevenness easily occurs.

The method of (b), in which the objects to be cleaned are arranged in a basket and then moved up and down while moving in water to perform ultrasonic cleaning while moving up and down, is disclosed in, for example, JP-A-8-29992.
As disclosed in Japanese Patent Application Publication No. 6-205, a large water tank is used because the object to be cleaned is stored in a basket (barrel), then submerged in a water tank (cleaning liquid), and then the entire barrel is rotated. (A cleaning liquid tank) is required, which results in an increase in the size of the entire apparatus and a problem of consuming a large amount of the cleaning liquid.

Further, in these two methods, when the object to be cleaned in the basket (barrel) is finished, all the objects to be cleaned are taken out, and then the next object to be cleaned is transferred to the basket (barrel) again. ) Requires a step of storing the cleaning solution, and the cleaning operation is intermittent, which results in inconvenience of poor workability.

[0007] A method in which a water-based ultrasonic cleaning or a water-based jet cleaning is performed while moving the cylindrical bullet from the one side to the other side while developing the cylindrical bullet in the above (c) as an improved type of the above-mentioned two systems, Although it is possible to operate continuously, it does not correspond to the actual position of the object to be cleaned conveyed inside the valet inside the valet.

That is, this conventional example is designed on the assumption that the object to be cleaned is always located at a position in which the center axis is lowered vertically downward on the inner wall surface inside the valet. Thus, an ultrasonic oscillator is disposed, or an injection nozzle for performing water-based jet cleaning is disposed.

However, in practice, the object to be cleaned is conveyed while rolling on the downstream side in the rotation direction from the position where the center axis is lowered vertically downward in accordance with the rotation of the bullet.
Ultrasonic cleaning or water-based jet cleaning has been performed in an insufficient state. Therefore, in this conventional example, the object to be cleaned could not be sufficiently cleaned.

[0010]

SUMMARY OF THE INVENTION It is an object of the present invention to improve the disadvantages of the prior art and, in particular, to provide an ultrasonic cleaner capable of cleaning objects to be cleaned at a higher level.

[0011]

In order to achieve the above object, according to the first aspect of the present invention, an object to be cleaned is transported inside from one end to the other end, and a through-hole for liquid flow is provided over the entire periphery. A cylindrical barrel having a hole formed therein, a rotation holding mechanism for holding the other end side of the barrel slightly higher than the one end side and rotatably holding the barrel in an inclined state,
A barrel drive mechanism for rotating and driving the barrel, a spiral spiral plate mechanism mounted on the inner wall surface of the barrel and transporting an object to be cleaned by rotation of the barrel, and one end of the barrel filled with a cleaning liquid therein An ultrasonic cleaning tank for immersing the side in the liquid, and an ultrasonic oscillator mounted on the ultrasonic cleaning tank and performing ultrasonic cleaning through the cleaning liquid. A configuration is adopted in which the device is provided at a position slightly shifted from the line vertically lowered onto the washing tank to the downstream side in the rotation direction of the barrel.

In the above configuration, when the object to be cleaned is carried into the rotating barrel from one end, the object to be cleaned is always moved to a lower position on the inner peripheral surface of the barrel by gravity.
It is conveyed along the spiral plate mechanism so as to climb a slope toward the other end that has been raised. On the other hand, since one end of the barrel is immersed in the cleaning liquid in the ultrasonic cleaning tank, the object to be cleaned is transported in the cleaning liquid at the beginning of the above-described transporting step. At this time, the object to be cleaned rolls on the inner wall surface of the barrel along the spiral plate mechanism toward the position immediately below the center axis in the barrel. On the other hand, since the barrel is continuously rotating, the object to be cleaned is always closer to the rotation direction downstream than the position immediately below the central axis. An ultrasonic oscillator is provided in the ultrasonic cleaning tank corresponding to a position directly below the object to be cleaned in such a state, ultrasonic waves are oscillated from the position, and the object to be cleaned is supersonic in the ultrasonic cleaning tank. It is sonic cleaned. After the cleaning, the object to be cleaned is discharged from the other end of the barrel.

According to the second aspect of the present invention, there is provided a cylindrical barrel in which an object to be cleaned is transported from one end to the other end, and a through-hole for liquid circulation is formed all around the barrel. A rotation holding mechanism that raises the other end side slightly from the one end side and rotatably holds the barrel in an inclined state, a barrel drive mechanism that rotationally drives the barrel,
A spiral spiral plate mechanism mounted on the inner wall surface of the barrel and transporting the object to be cleaned by rotating the barrel, and an ultrasonic cleaning tank for filling the inside with a cleaning liquid and immersing one end of the barrel in the liquid. An ultrasonic oscillator mounted in the ultrasonic cleaning tank for performing ultrasonic cleaning through the cleaning liquid, and a water-based jet cleaning mechanism for injecting the cleaning liquid into the object to be cleaned that is removed from the barrel immersion area. The liquid ejecting nozzle of the cleaning mechanism employs a configuration in which a position slightly shifted to a downstream side in the rotation direction of the barrel from a line on which the central axis of the barrel is vertically lowered on the inner wall surface of the barrel is set as the ejection position.

In the case of the above construction, when the object to be cleaned is carried into the rotating barrel from one end, the object to be cleaned is always moved to a lower position on the inner peripheral surface of the barrel by gravity.
It is conveyed along the spiral plate mechanism so as to climb a slope toward the other end that has been raised. On the other hand, since one end of the barrel is immersed in the cleaning liquid in the ultrasonic cleaning tank, the object to be cleaned is transported in the cleaning liquid at the beginning of the above-described transporting step. At this time, the object to be cleaned is ultrasonically cleaned in the cleaning liquid by driving the ultrasonic oscillator.

Then, when the cleaning liquid is immersed in the barrel by transport, the object to be cleaned is washed with the cleaning liquid jetted from the liquid jet nozzle of the water-based jet cleaning mechanism. The water drops of the cleaning liquid in the inside are washed away. Here, in the same manner as in the first aspect of the present invention, the object to be cleaned is always in a state of being more downstream than the position just below the center axis of the barrel in the rotation direction. In the water-based jet cleaning mechanism, the cleaning liquid is jetted toward the object to be cleaned in this state, and the water-based jet cleaning is performed. After the cleaning, the object to be cleaned is discharged from the other end of the barrel.

According to a third aspect of the present invention, a liquid jet nozzle is provided near the center axis of the barrel, and the jet direction of the liquid jet nozzle is changed. The configuration is such that the direction is set to be slightly inclined from the vertically lower direction in the barrel rotation direction. With this configuration, the cleaning liquid is jetted from the liquid jet nozzle toward the same position as in the second aspect of the invention, and the water-based jet cleaning of the object to be cleaned is performed.

According to the fourth aspect of the present invention, there is provided a cylindrical barrel in which an object to be cleaned is conveyed from one end to the other end, and a through-hole for liquid circulation is formed over the entire periphery of the barrel. A rotation holding mechanism that raises the other end side slightly from the one end side and rotatably holds the barrel in an inclined state, a barrel drive mechanism that rotationally drives the barrel,
A spiral spiral plate mechanism mounted on the inner wall surface of the barrel and transporting the object to be cleaned by rotating the barrel, and an ultrasonic cleaning tank for filling the inside with a cleaning liquid and immersing one end of the barrel in the liquid. An ultrasonic oscillator provided in the ultrasonic cleaning tank and performing ultrasonic cleaning through the cleaning liquid, and a water-based jet cleaning mechanism for injecting the cleaning liquid onto the object to be cleaned coming out of the barrel immersion area. The oscillator is mounted at a position slightly shifted downstream from the line where the center axis of the barrel is vertically lowered onto the ultrasonic cleaning tank in the rotation direction of the barrel, and the liquid jet nozzle of the water-based jet cleaning mechanism is provided with a liquid jet nozzle. The injection position is set such that a position slightly shifted to the downstream side in the rotation direction of the barrel from a line in which the center axis is vertically lowered on the inner wall surface of the barrel is defined as the injection position.

In this configuration, ultrasonic cleaning is performed in the same manner as in the first aspect of the invention, and thereafter, water-based jet cleaning is performed in the same manner as in the second aspect of the invention.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) A first embodiment of the present invention will be described below with reference to FIGS.

First, in FIGS. 1 to 3, reference numeral 50 denotes an ultrasonic cleaning machine. The ultrasonic cleaning device 50 is configured to rotate the object to be cleaned such as a bolt, a nut, and a washer having a predetermined size irregularly, and to move the inside of the cleaning liquid into one side (the left side in FIG. 1) which is the object to be cleaned. ) To the other side (the right side in FIG. 1) which is the cleaning object delivery side, and is provided with a rotary transfer means 1 for transferring the diagonally upward.

Further, the ultrasonic cleaning device 50 includes an ultrasonic cleaning means 6 for ultrasonically cleaning the object to be cleaned through the cleaning liquid during the transfer of the object to be cleaned, and the ultrasonic cleaning means 6.
A cleaning liquid discharge section 10 disposed on the upstream side (one side) of the transport direction of the object to be cleaned and discharging the cleaning liquid in an overflow state, and the above-described downstream portion in the transport direction of the object to be cleaned. The cleaning object is disposed on the cleaning object delivery side, which is the other side (the other side), and after the cleaning object is pushed out of the water surface in the cleaning liquid on the other side, the cleaning liquid is sprayed on the cleaning object to eject the cleaning object. The cleaning apparatus includes a water-based jet cleaning mechanism 31 for performing water-based jet cleaning, and an air blow mechanism 35 for injecting air for draining the cleaning target that has been subjected to the jet cleaning.

The above-described rotary transfer means 1 includes a cylindrical barrel 2 (see FIGS. 1 and 4) having a through-hole 2a for liquid circulation formed over substantially the entire periphery thereof, and a rotation center axis P of the barrel 2 is defined by a horizontal plane. (In FIG. 1, the inclination angle α ₀ is set to 15 °).
The barrel 2 further includes a rotation holding mechanism 3 that rotatably holds the barrel 2 and a barrel driving mechanism 4 that drives the barrel 2 to rotate. In this case, an inclination angle other than 15 ° may be adopted as the inclination angle α ₀ .

Here, the through-hole 2a for liquid circulation is as follows.
It is only partially illustrated in FIGS. 4 and 5 and is omitted in other drawings. Reference numeral 5 denotes a spiral plate mechanism having a predetermined width fixedly installed along the inner wall of the cylindrical barrel 2 (FIGS. 1 and 4).
reference).

The object to be washed carried into the barrel 2 is rotated by the spiral plate mechanism 5 with the rotation of the barrel 2 from one end 28 on the falling side (left side in FIG. 1) of the barrel 2. Is pushed up toward the other end 29 which is the rising side (right side in FIG. 1), and in the process,
The object to be cleaned is gradually pushed up while being rotated irregularly by the interaction between its own weight and the pushing force.

As described above, the cylindrical barrel 2 has
A through-hole 2a for liquid circulation is formed substantially all over the periphery. For this reason, the cleaning liquid can freely enter and exit the inside of the cylindrical barrel 2 from any part around the side surface. Also, as a result, barrel 2
This has the advantage that the weight can be reduced and at the same time the rotation operation can be performed smoothly.

The through hole 2 for liquid circulation of this cylindrical barrel 2
a is set to a size smaller than the size of the object to be cleaned. Specifically, for example, the diameter of the barrel 2 is 600
[Mm] When the object to be cleaned is a bolt or washer or the like before and after [mm], the through hole 2a for liquid circulation has a diameter of 6 to 1 for example.
Although set to 0 [mm], it is not necessarily limited to this and may be set to another size.

The above-described ultrasonic cleaning means 6 includes an ultrasonic cleaning tank 7 held at the top of a case body 100 containing the entire structure of the ultrasonic cleaning machine 50 except for the barrel 2 and an air as a water droplet receiving tank. An assembly tank 74 integrally formed with a blow tank 73 and an ultrasonic oscillator 8 for ultrasonic cleaning provided on the inner bottom surface of the ultrasonic cleaning tank 7 are provided. Among them, the collecting tank 74 is open at the upper side facing the lower surface side of the barrel 2, and the ultrasonic cleaning tank 7 forming a part thereof is
The above-described lower region on the falling side of the barrel 2 is disposed close to and below the barrel 2 so that a part of the lower region can be submerged. When the cleaning liquid is filled in the ultrasonic cleaning tank 7 in this state, the lower part of one end 28 of the barrel 2 is immersed in the cleaning liquid, and the cleaning liquid enters the barrel 2 to form an immersion area S _0. Is done.

Further, the collecting tank 74 will be described in detail. As will be described in detail later, the liquid jet nozzle 32 of the water-based jet cleaning mechanism 31 and the air nozzle 36 of the air blow mechanism 35 are connected to one end 2 of the barrel 2.
They are arranged in order along the direction from 8 to the other end 29. On the other hand, the collecting tank 74 is formed over substantially the same length as the length from one end 28 to the other end 29 of the barrel. A partition plate 7A for separating the ultrasonic cleaning tank 7 and the air blow tank 73 is provided between the nozzles 36 and the injection position.

As a result, the collecting tank 74 is provided with the ultrasonic cleaning tank 7 for performing ultrasonic cleaning and the air blow tank 73 for collecting drainage during air blowing separately from each other. Water droplets of the cleaning liquid containing the dirt component separated from the object do not return to the ultrasonic cleaning tank 7 side. In the ultrasonic cleaning tank 7, by performing the ultrasonic cleaning, a dirt component and an oil component of the object to be cleaned are generated in the stored cleaning liquid. The effect of reducing the concentration of benzene is brought about, which contributes to prolonging the life of the cleaning liquid.

Further, the ultrasonic cleaning tank 7 floats dirt components and oil components separated from the object to be cleaned on the liquid surface of the cleaning liquid, removes them by overflow of the cleaning liquid discharge section 10 described above, and removes the stored cleaning liquid. In order to maintain cleaning, the partition plate 7A is provided in the collecting tank 74, and the air blow mechanism 35 is provided.
Is received by the air blow tank 73,
The liquid level is not disturbed on the ultrasonic cleaning tank 7 side,
It is possible to remove dirt components etc. more effectively,
The inside of the ultrasonic cleaning tank 7 can be maintained more clean. At the same time, air bubbles are prevented from being mixed into the cleaning liquid by air blowing, and ultrasonic vibration can be transmitted to the object to be cleaned satisfactorily, so that ultrasonic cleaning can be performed more effectively. .

The partition plate 7A also functions as a reinforcing member such as a so-called rib of the collecting tank 74, and thereby has the effect of strengthening the collecting tank 74 and improving maintainability and durability. ing. Furthermore, by the partition plate 7A,
The amount of the cleaning liquid stored in the collecting tank 74 is determined by the ultrasonic cleaning tank 7.
And the consumption of the cleaning liquid can be reduced.

Further, as shown in FIG. 12, the ultrasonic cleaning tank 7 has a liquid jet nozzle 3 on its bottom surface in a direction from one end 28 to the other end 29 of the barrel 2.
2 is bent near the position just before the liquid injection position. That is, from the one end 28 of the barrel 2 to the other end 2
A bent portion 75 is formed along a direction orthogonal to the direction toward 9. More specifically, the bottom surface of the ultrasonic cleaning tank 7 is provided so as to rise from the one end 28 side of the barrel 2 to some extent along the rising of the barrel 2 (about 2 to 3 degrees with respect to the horizontal). ), And is bent from the above-described bent portion 75, and the right side portion is formed so as to rise approximately 15 degrees to the right.

Further, the bent portion 7 on the bottom surface of the ultrasonic cleaning tank 7
The above-described ultrasonic oscillator 8 is provided on one end 28 side of the barrel 2 with the sandwich 5 therebetween. Thus, the cleaning liquid is always collected on the left side of FIG. 1 (on the side of the cleaning liquid discharge unit 10), and at the same time, the strength of the ultrasonic cleaning tank 7 itself is increased to enhance the durability. For this reason, it is difficult for the ultrasonic oscillator 8 to transmit the ultrasonic vibration transmitted through the bottom surface of the ultrasonic cleaning tank 7 to a position beyond the bent portion 75.

Further, the ultrasonic cleaning tank 7 has a bent portion 75.
A float switch 76 as a liquid level detecting means is provided at a position between the liquid crystal panel and the partition plate 7A. The float switch 75 is turned on when the cleaning liquid in the ultrasonic cleaning tank 7 is lower than a predetermined liquid level due to a cause such as spilling to the air blow tank 73 side, and a liquid level lowering signal is transmitted to the case body. Controller 103 mounted on 100
(See FIG. 2). Such a controller 103
Has a function of performing operation control for stopping driving of the drive motor 27A in accordance with the output of the float switch 76. Further, the float switch 76 stops outputting the liquid level lowering signal when the liquid level of the cleaning liquid recovers from the above-mentioned liquid level lowering state due to the increase of the cleaning liquid due to the injection of the cleaning liquid by the water-based jet cleaning mechanism 31. Thereby, the controller 103
Has a function of performing operation control to restart driving of the drive motor 27A again.

As a result, it is possible to prevent the cleaning object from being poorly cleaned due to a shortage of the cleaning liquid in the ultrasonic cleaning tank 7, and to maintain a high cleaning finish.

The float switch 76 is provided between the bent portion 75 of the ultrasonic cleaning tank 7 and the partition plate 7A due to the configuration of bolts and nuts. Since the plate 7A has the effect of enhancing the ultrasonic cleaning tank 7, transmission of ultrasonic vibration from the ultrasonic oscillator 8 is suppressed, and loosening of the mounting nut and chattering (vibration noise due to loosening) are generated. Can be effectively prevented. For this reason, the maintainability and reliability of the device can be improved by such an arrangement.

Here, the cylindrical barrel 2 is connected to one end 2 of the barrel 2 as shown in FIGS.
A part (lower part) of the opening on the side of the ultrasonic cleaning tank 7 is disposed in the liquid of the ultrasonic cleaning tank 7, and the opening on the other end 29 side is above the liquid surface S of the ultrasonic cleaning tank 7. It is arranged on the collecting tank 74 so as to be located. A line segment S ₀ (see FIG. 3) schematically shows an immersion area where the liquid level S occurs.

For this reason, the object to be washed carried into one end 28 of the barrel 2 is first pushed upward by the spiral plate mechanism 5 with the rotation of the barrel 2 while being ultrasonically cleaned in the washing liquid. The liquid is sent out onto the liquid surface S from the middle of the barrel 2.

Here, the ultrasonic oscillator 8 is mounted on the bottom of the ultrasonic cleaning tank 7 as described above. In this case, the ultrasonic oscillator 8 is disposed at a position offset from the position where the center axis of the barrel 2 is lowered vertically downward on the bottom surface of the ultrasonic cleaning tank 7 toward the downstream side in the rotation direction of the barrel 2. ing. This offset amount is within a range of 10 to 45 [゜] from the line vertically lowered from the center axis of the barrel 2 on the rotational direction side of the barrel 2, and more specifically, at a position of about 20 [゜]. It is desirable that the center of the ultrasonic oscillator 8 be located (see FIG. 3).

As described above, the arrangement of the ultrasonic oscillator 8 is shifted in the rotation direction of the barrel because when the barrel 2 is rotated, the object to be cleaned is placed on the inner wall surface of the barrel 2 inside the barrel 2 by the spiral plate mechanism 5. , While constantly rolling toward the position directly below the central axis in the barrel 5, while being drawn to the continuously rotating barrel 2 and being shifted toward the downstream side in the rotation direction. Therefore, by equipping the above-mentioned position with the ultrasonic oscillator 8, it is possible to irradiate ultrasonic waves for cleaning from a position almost directly below the object to be cleaned at the time of transfer, and to effectively perform ultrasonic cleaning. It is possible to further improve the cleaning performance.

Further, as described above, the ultrasonic cleaning tank 7 is provided with the cleaning liquid discharge section 10 for discharging the used cleaning liquid in an overflow state. The cleaning liquid discharge unit 10 is provided on the cleaning object carrying side (the left end in FIG. 1) which is one side in the transfer direction of the cleaning object described above. For this reason, the used cleaning liquid is transported together with floating substances such as dust containing oil particles that have been removed and floated by the cleaning, in a direction opposite to the direction in which the object to be cleaned is transported (left direction in FIG. 1). It is configured to be discharged from the discharge unit 10.

The rotation holding mechanism 3 for rotatably holding the cylindrical barrel 2 described above, as shown in FIGS.
In the present embodiment, it is constituted by first to third pairs of holding rollers.

Of the three pairs of holding rollers, the first holding rollers 21A and 21B are disposed below the object to be cleaned and the lower end of the barrel 2 as shown in FIGS. The barrel 2 is rotatably held via an annular partition plate 2E fixedly installed at the opening of the barrel 2. In this case, the first holding rollers 21A and 21B are fixedly mounted on the inner side wall of the ultrasonic cleaning tank 7. Further, the third holding rollers 23A and 23B are fixedly provided in the air blow tank 73.

Here, the first holding rollers 21A, 21A
1B is, for example, 30 ° left and right (60 ° between each other) with respect to a vertical line passing through the rotation center axis of the cylindrical barrel 2.
In this manner, the weight of the barrel 2 at the time of stoppage is substantially evenly distributed between the holding rollers 21A and 21B.
Is divided into two.

The second holding rollers 22A and 22B are
As shown in FIG. 7, the barrel 2 is disposed so as to protrude from the ultrasonic cleaning tank 7 side toward the outer surface of the side wall of the one end 28 of the barrel 2. The second holding rollers 22A and 22B are fixedly mounted on the inner side wall of the ultrasonic cleaning tank 7 with the side wall portion of the barrel 2 rotatably held on the lower side.

Here, the second holding rollers 22A, 22
2B is, for example, 60 ° left and right with respect to a vertical line passing through the rotation center axis of the cylindrical barrel 2 (120 ° between each other).
°), so that the weight of the barrel 2 in this part is substantially evenly distributed between the holding rollers 22A, 22A.
B.

Further, the third holding rollers 23A, 23B
As shown in FIG. 6, the case body described above is disposed opposite to the outer surface of the side wall at the other end 29 side of the barrel 2 and is in contact with the lower side wall portion of the barrel 2. 100 fixedly equipped. The third holding rollers 23A and 23B rotate the barrel 2 while holding the weight of the barrel 2 in cooperation with the first holding rollers 21A and 21B and the second holding rollers 22A and 22B. It is freely held.

The third holding rollers 23A and 23B are
Each of the holding rollers is disposed at a distance of, for example, 60 ° left and right (120 ° between each other) with respect to a vertical line passing through the rotation center axis of the cylindrical barrel 2 so that the weight of the barrel 2 in this portion is substantially equal to each holding roller. 23A and 23B.

The first to third holding rollers 21
For A, 21B, 22A, 22B, 23A, and 23B, the barrel 2 is placed from above.
In this regard, there is an advantage that the barrel 2 can be freely attached and detached from above, and the work can be quickly performed during maintenance.

FIGS. 5 and 6 show a barrel drive mechanism 4 for driving the above-mentioned cylindrical barrel 2 to rotate. The barrel driving mechanism 4 is configured to rotationally drive the barrel 2 from the surroundings, and between the first holding rollers 21A, 21B and the third holding rollers 23A, 23B and the third holding roller 23A. , 23B.

As shown in FIGS. 5 and 6, the barrel drive mechanism 4 includes an endless chain 25 fixedly mounted around the barrel 2 on the same circumference around the barrel 2 and an endless chain 25. A chain wheel 26 constantly meshed with the chain wheel 25, a drive motor 27A for rotating and driving the chain wheel 26, and a speed damping mechanism 27B. The drive motor 27A is connected to a control panel 100E attached to the case body 100 shown in FIG.
The rotation speed is arbitrarily set in accordance with a command from

Here, the barrel drive mechanism 4 is exemplified by a combination of an endless chain 25 and a chain wheel 26, but other drive mechanisms such as a gear mechanism or a belt mechanism are provided instead. It may be something.

In the present embodiment, the spiral plate mechanism 5 provided in the barrel 2 has a diameter of the barrel 2 of 60.
When it is 0 [mm] (made of stainless steel having a thickness of 2 [mm]), it is formed of a spiral plate made of stainless steel having the same thickness of 2 [mm] and having a plate width of 40 [mm].

As shown in FIG. 8, in this spiral plate mechanism 5, in this embodiment, a through hole 5a for liquid circulation having a diameter of 6 to 10 [mm] is formed in a part or the whole thereof. I have. In this case, except for FIG. 8, the liquid flow through hole 5a
Are almost omitted. For this reason, the spiral plate mechanism 5
During operation, the object to be cleaned can be transported upward by scooping up the object to be cleaned from the inside of the ultrasonic cleaning tank 7 in cooperation with the above-described barrel 2 and by the function of the through-hole 5a for liquid circulation. ing. That is, since the cleaning liquid scooped up together with the object to be cleaned inside the barrel 2 passes through the through-hole 5a for liquid circulation, the cleaning liquid easily flows to the one end 28 side of the barrel 2, and the cleaning liquid and floating dirt are removed. The object to be cleaned can be transported while remaining in the ultrasonic cleaning tank 7.

The spiral plate mechanism 5 is provided with a predetermined projection on the entire surface thereof on the surface F side (the surface on the side that pushes up the object to be cleaned). Here, no projection is provided on the back surface (the back surface of the surface that pushes up the object to be cleaned) E. FIG. 9 shows an annular projection 5b which is an example of this projection. In the present embodiment, the annular projection 5b is
Although it is provided around the liquid through hole 5a described above, it may be provided at other positions irregularly.

By providing a predetermined projection on the surface F side (the surface on the side that pushes up the object to be cleaned) of the spiral plate mechanism 5, a member having a flat surface such as a washer can be used for the spiral plate mechanism 5 being transferred. Adsorption to the surface F side can be effectively eliminated.

FIGS. 10A and 10B show another example of this projection.
It is shown in (C). 10A and 10B show an example of a wire-like projection 5c when a predetermined wire is laid along a spiral surface, and FIG. 10A shows a case where there are two wires. ,
FIG. 10B shows a case where there are three wires. The wire-like projection 5c may be provided on the surface F of the spiral plate mechanism 5 in a sine curve. FIG. 10C shows the case of a net-like projection 5d in which a wire net is continuously attached. This projection may be any other type of projection as long as it can prevent adhesion of the object to be cleaned. Surface F on the front side
May be processed.

Further, a cover 30 is provided on the upper surface side of the above-described barrel 2 so as to surround the upper surface and the entire periphery of the barrel 2 (FIGS. 1 to 3 and FIGS. 12 to 14). The cover 30 is detachably held by the case body 100 described above.

The cover 30 is provided with a carry-in opening 30A and a carry-out opening 30B in the lower area on the carry-in side and the carry-out side of the above-described object to be cleaned into the barrel 2, respectively. An object to be cleaned is carried in or sent out from 30A, 30B. The cover 30 has a maintenance opening / closing window 30 which functions effectively at the time of maintenance at left and right symmetrical positions along the center axis on the upper surface side in FIG.
a, 30b (see FIG. 3) are provided.

Further, as shown in FIG.
A drive mechanism cover 24 surrounding the chain wheel 26 of the barrel drive mechanism 4 described above is integrally provided. The drive mechanism cover 24 is formed in a box shape except for a communication surface with the cover 30, and has a bottom surface on which a cleaning liquid for connecting the inside of the drive mechanism cover 24 to the inside of the air blow tank 73 described above. A connection pipe 24A as a collecting means is provided.

The cleaning liquid that has entered the drive mechanism cover 24 through the connection pipe 24A can be drained to the air blow tank 73. When the washing liquid scattered by washing enters the inside of the drive mechanism cover 24, the chain wheel 2
When the lubricating oil and the metal powder generated at the time of driving are mixed and flows into the ultrasonic cleaning tank 7, the stored cleaning liquid is contaminated. Equipped. Therefore, the ultrasonic cleaning tank 7
It is possible to maintain the cleaning state of the cleaning liquid inside for a long time.

The connection pipe 24A may be provided with a biasing means such as a pump for biasing the flow from the drive mechanism cover 24 to the air blow tank 73 side. Air blow tank 7
Since the inside pressure may be higher than the inside of the drive mechanism cover 24 due to the air blow of the air blow mechanism 35 in the inside 3, the flow of the intrusion cleaning liquid is urged by such a pump to more effectively remove the intrusion cleaning liquid. It is possible to perform it. Further, the connection pipe 24A may be configured to directly drain water from the drive mechanism cover 24 to a cleaning liquid storage tank 40 described later.

Further, a belt conveyer 101 for carrying an object to be cleaned is provided at one end 28 (the left end side in FIG. 1) of the barrel 2 as shown in FIGS. During operation, the object to be cleaned is naturally dropped into the falling side of the barrel 2 via the carry-in guide 100A supported by the case body 100, and is automatically carried in. Here, the carry-in guide 100 </ b> A
0 is provided in the carry-in side opening 30A.
The object to be cleaned is carried into the falling side of the barrel 2 via 00A.

Further, on the other end 29 (right end side in FIG. 1) of the barrel 2, there is provided a belt conveyer 102 for feeding an object to be cleaned as shown in FIGS. Then, at the time of operation, the object to be cleaned falls naturally from the delivery-side opening 30B on the rising side of the barrel 2 and is placed on the belt conveyor 102 via the delivery guide 100B provided in the case body 100, and is automatically moved. It is designed to be transported outside.

The delivery guide 100B is provided at the lower end of the delivery-side opening 30B of the cover 30, receives the object to be cleaned pushed out from the delivery-side opening 30B and falls by its own weight, and as described above. Belt conveyor 102
It is designed to guide you up.

The object to be washed out (right side in FIG. 1)
In the other opening of the barrel 2 as described above,
After the object to be cleaned is pushed out from the water surface on the other side in the cleaning liquid, a water-based jet cleaning mechanism 31 is provided which jets the cleaning liquid onto the object to be cleaned and water-jet-cleans the object to be cleaned (FIGS. 12 to 12). See FIG. 14).

This water-based jet cleaning mechanism 31 is similar to that shown in FIG.
As shown in FIG. 2, a liquid jet nozzle portion 32 provided with one or more nozzles 32a for jetting downward on the inner surface of the barrel 2 and disposed near the center axis of the barrel 2, and the liquid jet nozzle portion 32 And an internal piping section 33 for holding and guiding the cleaning liquid of a predetermined pressure injected from the liquid injection nozzle section 32.

The internal pipe section 33 is laid from the side of the barrel 2 to be washed (the right side in FIGS. 1 and 2) to the center along the axis of rotation of the barrel 2. The nozzles 32a (three in the present embodiment) of the liquid jet nozzle portion 32 described above are disposed at a predetermined interval along the central axis of the barrel 2 at the tip of the internal pipe portion 33. I have.

The liquid jet nozzle 32 is disposed in a space above a location where the object to be cleaned is sent upward from the level of the cleaning liquid. For this reason, even if the dirt particles floating on the liquid surface of the cleaning liquid adhere to the cleaned object and are sent out together with the liquid surface, the dirt particles are efficiently removed from the object to be cleaned. can do.

In the present embodiment, the liquid jetting direction of each nozzle 32a of the liquid jetting nozzle portion 32 is based on the portion located immediately below the central axis of the barrel 2 described above, and the liquid jetting direction is the downstream of the barrel 2 in the rotational direction. A predetermined angle α ₁ toward the side (for example, 15 to 4 with respect to a vertical line at the center of the liquid injection nozzle portion 32).
The inclination is set within a range of 5 °, more preferably about 22.5 ° (FIG. 13).

Further, the center of the liquid injection nozzle portion 32 is disposed at a position shifted from the vertical plane including the central axis of the barrel in the rising side direction of the barrel side wall when the barrel 2 rotates. ing. In the present embodiment, as shown in FIG. 13, it is shifted by f = 40 [mm].

As a result, the object to be cleaned, which is transported upward in the barrel 2 while being slightly deviated in the rotational direction from the center axis,
The cleaning liquid is reliably jetted from each of the nozzles 32a for the entire object, and the water-based jet cleaning is performed, so that the cleaning performance of the object to be cleaned can be improved.

Further, an air blow mechanism 35 is provided on the other side of the barrel 2 which is the above-mentioned sending side of the cleaning object. The air blow mechanism 35 is intended to drain the liquid by spraying clean and dry air on all the objects to be cleaned, which are to be cleaned by the water-based jet cleaning mechanism 31 described above. . FIG.
Reference numeral 38 indicates a compressor.

The air blow mechanism 35 is provided at a predetermined position in the barrel 2 and has a plurality of air nozzles 3 for injecting the draining air downwardly on the inner surface of the barrel 2.
6a (four in FIG. 13 are shown, but the number is not particularly limited, and at least more is good).
And a piping section 37 for feeding liquid draining air having a predetermined injection pressure to the air nozzle section 36. Further, the air nozzles 36a of the air nozzle portion 36 are disposed at predetermined intervals in a direction intersecting the central axis of the barrel 2 described above.

The air nozzle portion 36 extends from the other end 29 of the barrel 2 to the cover 30 facing the end 29.
Is disposed somewhat outside the barrel 2 so as to protrude toward the end face side having the delivery side opening 30B. On the other hand, each air nozzle 36a is of a type that takes in outside air from around the air nozzle 36a and jets air in a predetermined direction.

It is desirable that the air nozzle 36a of this type is separated from the liquid jet nozzle 32 of the water-based jet washing mechanism 31. If the air nozzle 36 is located deeper in the barrel 2 (closer to one end 28). When placed,
The cleaning liquid injected from the liquid injection nozzle section 32 is sprayed by the air nozzle 36a, which interferes with the intake of the outside air and the pressure of the discharged air, thereby significantly disturbing a good liquid injection in a predetermined direction. There is a possibility that the droplets of the cleaning liquid due to the injection are sucked and sprayed on the object to be cleaned.

Therefore, by arranging the air nozzle portion 36 at the above-mentioned position, the pressure fluctuation in the barrel 2 is suppressed because the air nozzle portion 36 is almost outside the barrel 2, and interference with the liquid injection by the liquid injection nozzle portion 32 is prevented. Is prevented. Therefore, it is possible to satisfactorily perform the liquid injection, prevent the cleaning liquid from being involved and sprayed during the air blowing, and perform the air blowing satisfactorily.

Further, as shown in FIG. 13, each of the air nozzles 36a of the above-described air nozzle portion 36 has its jetting direction of the liquid draining air with reference to a portion located directly below the central axis of the barrel 2. The barrel 2 is set to be inclined at a predetermined angle toward the downstream side in the rotating direction of the barrel 2 (for example, in a state of rising by β ₁ = 30 ° with respect to a horizontal line at the center of the air nozzle portion 36). The air jet direction is set to be inclined toward the inside by a predetermined angle (for example, γ ₁ = 20 °) with respect to the opening surface on the sending side of the object to be cleaned.

For this reason, the position at which the air is jetted by the air nozzle portion 36 is shifted to the rotational direction side of the barrel 2 from a line in which the central axis of the barrel 2 is lowered vertically downward on the inner wall surface of the barrel 2. . Therefore, air can be injected just to the object to be washed conveyed to the downstream side in the rotation direction from the position directly below the central axis by the rotation in the barrel 2, and the liquid to be washed is more effectively drained. It is possible,
Along with this, it is possible to prevent contamination components remaining on the object to be cleaned from remaining due to the residual cleaning liquid, and to further improve the cleaning performance.

As shown in FIG. 14, the arrangement direction of the plurality of air nozzles 36a is, for example, γ ₂ = 20 ° in the clockwise direction with respect to the opening surface of the barrel 2 on the side of the object to be cleaned.
The spiral plate mechanism 5 is set to be in a rotated state, so that the spiral plate mechanism 5 is opposed to the inclination angle (spiral angle) of the spiral plate mechanism 5, thereby suppressing the influence of the reversal of the air from the spiral plate mechanism 5. Further, an injection area formed by the air nozzle unit 36 is formed so as to intersect with the inclination angle (spiral angle) of the spiral plate mechanism 5, and a wide range is provided for an object to be cleaned conveyed along the spiral plate mechanism 5. Thus, air blow can be performed in a leak-free manner.

For this reason, in the process of moving the ultrasonically cleaned object to be cleaned upward, the whole of the object to be cleaned is easily trapped, and the air for draining the liquid is applied to the whole of the object to be cleaned. Thus, there is an advantage that the amount of the cleaning liquid that is quickly and uniformly drained over the entirety and brought to the next step can be reduced. At the same time, the cleaning liquid containing the dirt component can be wiped from the object to be cleaned, and the object to be cleaned can be more effectively cleaned.

Further, the position of the center of the air nozzle portion 36 is slightly shifted toward the rising side of the side wall during rotation of the barrel 2 with respect to the above-described vertical plane including the center axis of the barrel 2. (A position substantially shifted from the liquid ejecting nozzle portion 36). For this reason, the whole to-be-cleaned thing is in a state where it is easier to catch.

A washing liquid storage tank 40 is provided below the collecting tank 74 via a pipe (FIG. 1).
(See FIG. 2). The cleaning liquid storage tank 40 includes a first collection pipe 41 for collecting the cleaning liquid in the ultrasonic cleaning tank 7 as needed, and a second recovery pipe for collecting the cleaning liquid overflowing in the ultrasonic cleaning tank 7. And a third collecting pipe 43 for collecting the cleaning liquid flowing into the air blow tank 73 and the cleaning liquid removed from the object to be cleaned by the air blow.

Further, the cleaning liquid storage tank 40 has a cleaning liquid supply pipe 44 for replenishing the cleaning liquid from the outside, a drain pipe 47 for draining the cleaning liquid in the cleaning liquid storage tank 40 to the outside as necessary, and the above-described drain pipe 47. The aforementioned water-based jet cleaning mechanism 31 including the liquid jet nozzle section 32 and jetting a predetermined cleaning liquid toward the object to be cleaned is provided in parallel with each other. Thereby, the cleaning liquid storage tank 40 is provided with the water-based jet cleaning mechanism 3.
1 is supplied.

Here, the water-based jet cleaning mechanism 31 includes the liquid jet nozzle 32 and the liquid jet nozzle 32.
Pipe 3 for feeding the cleaning liquid in the cleaning liquid storage tank 40 described above
1A and a pressurizing pump 31 mounted on the pipe 31A.
B, liquid cleaning filter 31C, and switches 31E, 31
F, 31G. Further, the water-based jet cleaning mechanism 31 includes a bypass pipe 91 that connects the downstream side of the pressurizing pump 31B and the cleaning liquid storage tank 40, and a flow control valve 92 provided in the middle of the bypass pipe 91. .

The operation of the pressurizing pump 31B is stopped by a control circuit (not shown). For this reason, the cleaning liquid that is always purified is sent to the water-based jet cleaning mechanism 31.

In the water-based jet cleaning mechanism 31, when the cleaning liquid is sprayed onto the object to be cleaned, the pressurizing pump 31B is driven to discharge the cleaning liquid from the cleaning liquid storage tank 40 into the liquid spray nozzle section 3.
Pump to 2 At this time, by adjusting the opening amount of the flow control valve 92 on the bypass pipe 91, a part of the cleaning liquid is supplied through the bypass pipe 91 to the cleaning liquid storage tank 40.
The adjustment of the injection amount from the liquid injection nozzle unit 32 is performed. For this reason, by appropriately setting the flow rate of the bypass pipe 91, the amount of liquid injected into the ultrasonic cleaning tank 7 is adjusted to a range that does not disturb the standing wave from the ultrasonic oscillator 8, and suitable ultrasonic cleaning is performed. It is possible to do.

When the liquid jet nozzle 32 is clogged, the cleaning liquid is returned to the cleaning liquid storage tank 40 through the bypass pipe 91, so that the pressure pump 31B can be protected. The maintainability of the entire device is improved.

An electromagnetic valve that opens and closes by an external input signal is provided on the bypass pipe 91, and a dedicated controller that controls the opening and closing of the electromagnetic valve and the driving of the ultrasonic oscillator 8 is also provided. It is good also as a structure which performs. The controller has a function of driving the ultrasonic oscillator 8 when the electromagnetic valve is open, and performing an operation control to stop driving the ultrasonic oscillator 8 when the electromagnetic valve is closed. It is possible to switch between cleaning and cleaning only by spraying the cleaning liquid, and it is possible to make a selection according to the degree of contamination of the object to be cleaned.

The above-mentioned cleaning liquid storage tank 40 is provided with a partition plate 40A whose underwater portion is open, and floating substances (dirt) in the cleaning liquid overflowing and collected in the ultrasonic cleaning tank 7 are disposed on one side. They can be collected intensively. The collected suspended matter (dirt) is removed by the oil skimmer 41. Further, the cleaning liquid storage tank 40 is equipped with a heater (not shown), and is driven and controlled by the above-described control circuit unit as needed, thereby maintaining a high cleaning ability.

Next, the operation of the first embodiment will be described.

First, an object to be cleaned such as a bolt, a nut or a washer is carried into the cylindrical barrel 2 by the belt conveyor 101. In this case, the belt conveyor 10
1 is that the end of the cleaning object is disposed on the carry-in guide 100A supported by the case main body 100 (see FIGS. 1 and 2), so that the object to be cleaned is brought into the cover 30 by natural fall through the carry-in guide 100A. It is carried into one side (the left end in FIGS. 1 and 2) in the barrel 2 from the side opening 30A.

The cylindrical barrel 2 constitutes a main part of the rotary transfer means 1, and rotates the carried object to be cleaned while operating a spiral plate mechanism 5 provided therein to rotate the inside of the cleaning solution at one end. 28 to the other end 29.
In this case, the location where the object to be cleaned has been carried in is submerged in the cleaning liquid in the ultrasonic cleaning tank 7, and the barrel 2 is provided with a through-hole 2a for liquid circulation on the entire surface thereof. The place where the object to be cleaned is carried in is located in the cleaning liquid in the ultrasonic cleaning tank 7.

Since the barrel 2 rotates in this state, the object to be cleaned is transported in the rotation direction with the rotation of the barrel 2, and is shifted as a whole in the rotation direction, and with the rotation of the barrel 2 side wall rising. It falls under its own weight and rotates irregularly. At the same time, the spiral plate mechanism 5 gradually moves to the right (ie, obliquely above the barrel 2) in FIGS.
Is transported.

In the course of this transfer, the object to be cleaned is ultrasonically cleaned by the ultrasonic cleaning means 6. At the same time, since the object to be cleaned is transferred obliquely through the cleaning liquid in the ultrasonic cleaning means 6, the distance between the object and the ultrasonic oscillator 8 gradually changes. The cleaning residue of the pattern is eliminated, and the entire periphery of the object to be cleaned is ultrasonically and uniformly cleaned.

Further, as described above, since the ultrasonic oscillator 8 is shifted to the downstream side in the rotation direction of the barrel,
Corresponding to the object to be washed moving in a state of being slightly wound up in the rotating direction from the bottom of the barrel 2 at the time of transfer, the ultrasonic wave for washing is oscillated from a position directly below the object to be washed, Effective ultrasonic cleaning is performed.

Then, when the object to be cleaned is pushed out from the water surface on the other side in the cleaning liquid, the object to be cleaned is subjected to water jet cleaning by the water jet cleaning mechanism 31. At this time, as described above, the liquid jet nozzle part 32 of the water-based jet cleaning mechanism 31 jets the cleaning liquid from a vertically lower direction in a direction inclined at a certain angle in the barrel rotation direction.
For this reason, the injection position is a position slightly shifted in the rotational direction from the position where the center axis of the barrel 2 is lowered vertically downward on the inner wall surface. Accordingly, the cleaning liquid is sprayed corresponding to the object to be cleaned which moves while being slightly wound up from the bottom of the barrel 2 in the rotation direction, and the water-based jet cleaning is performed more effectively.

Subsequently, after the water-based jet cleaning, water drops on the entire object to be cleaned are removed by the air blow mechanism 35. At this time, the air nozzle portion 36 of the air blow mechanism 35 is more covered with the cover 30 than the other end 29 of the barrel 2.
Injecting air from the position near the end face of the carry-out side of
Interference with aqueous jet cleaning is prevented. Also,
The air nozzle portion 36 injects the downstream side in the rotation direction from the position directly below the center axis line in the barrel 2, and the air injection region is formed widely on the object to be washed conveyed along the spiral plate mechanism 5. The air blow is performed at a precise position with respect to the object to be cleaned without leakage.

The water droplets of the cleaning liquid scattered by the air blow generated in such a case are collected in the air blow tank 73 located in the direction of the spray, and the ultrasonic cleaning tank
Intrusion is prevented.

For this reason, also in this respect, the separation of the dirt discharged by the cleaning and the object to be cleaned is smoothly performed. Further, since the dirt component accompanying the scattered cleaning liquid due to the air blow is prevented from being returned to the ultrasonic cleaning tank 7, it is possible to maintain the cleaning state in the ultrasonic cleaning tank 7 for a long time during cleaning.

These series of steps of ultrasonic cleaning, water-based jet cleaning, and liquid drainage are performed in a process in which the object to be cleaned is transferred obliquely downward from above by the barrel 2.

The cleaning object having undergone the liquid draining step in the final stage is pushed out of the barrel 2 to the outside through the above-described delivery side opening 30B of the cover by the action of the spiral plate mechanism 5 in the barrel 2. However, since the delivery guide 100B is provided below the fall, the object to be cleaned is guided on the belt conveyor 102 and carried out through the delivery side opening 30B.

Further, since the series of cleaning and draining steps are performed continuously, the efficiency of the cleaning operation of the object to be cleaned is significantly improved. In addition, during the operation of the series of cleaning and draining steps, the ultrasonic cleaning tank 7 described above is simultaneously operated.
The cleaning liquid in the inside is drained in the form of overflow in the direction opposite to the transfer direction of the object to be cleaned.

Therefore, dirt particles, removed oil particles and the like located in the upper layer region of the cleaning liquid in the ultrasonic cleaning tank 7 can be continuously taken out from the direction opposite to the transport direction of the object to be cleaned. There is an advantage that the degree to which the oil particles and the like adhere to the object to be cleaned is greatly reduced.

(Second Embodiment) Next, a second embodiment will be described with reference to FIGS.

In FIGS. 15 to 17, two ultrasonic cleaners 50, 50 having the same structure as the ultrasonic cleaner 50 shown in the first embodiment are provided. The feed side of the object to be cleaned is connected to the carry-in side of the other ultrasonic cleaner 50 for carrying the object to be cleaned, and the ultrasonic cleaner 50 on the upstream side is used for cleaning, and the ultrasonic wave on the downstream side is used. 9 shows an ultrasonic cleaning system 90 in which the cleaning machine is used for rinsing.

In the upstream ultrasonic cleaner 50, the collecting tank 7
4. The cleaning liquid is circulated in the cleaning liquid storage tank 40 and the water-based jet cleaning mechanism 31 to clean the dirt component and the oil component of the object to be cleaned.
4. The rinsing liquid (water, pure water, etc.) is circulated in the cleaning liquid storage tank 40 and the water-based jet cleaning mechanism 31 to remove the cleaning liquid from the object to be cleaned.

Further, on the falling side (left end side in FIG. 15) of the barrel 2 of the ultrasonic cleaning machine 50 on the upstream side, as shown in FIGS. 101 is equipped. During operation, the object to be cleaned is naturally dropped into the falling side of the barrel 2 via the carrying-in guide 100A supported by the case body 100, and is automatically carried in. Here, the carry-in guide 100A is provided in the carry-in opening 30A of the cover 30 of the ultrasonic cleaning machine 50 on the upstream side, and through the carry-in guide 100A, the object to be cleaned is cleaned by the ultrasonic cleaning for the upstream side. The barrel 50 of the machine 50 is carried into the falling side.

Further, an ultrasonic cleaning machine 5 for rinsing (downstream side)
On the rising side (right end side in FIG. 15) of the barrel 2 of No. 0, a belt conveyor 102 for feeding out the object to be cleaned is provided as shown in FIGS. 15 and 16. During operation, the object to be cleaned falls naturally from the delivery-side opening 30B on the rising side of the barrel 2 and the case body 10
In addition, it is placed on the belt conveyor 102 via the delivery guide 100B provided at the position 0, and is automatically carried out.

Here, the delivery guide 100B is provided at the lower end of the delivery side opening 30B of the cover 30 of the rinsing ultrasonic cleaner 50, and the object to be cleaned pushed out from the delivery side opening 30B falls by its own weight. In response to this, the guide is guided on the belt conveyor 102 as described above.

Also, an ultrasonic cleaning machine 50 for cleaning (upstream side) is used.
Between the opening on the downstream side of the barrel 2 (washing object delivery side) and the opening on the upstream side of the barrel 2 of the rinsing ultrasonic cleaner 50 (washing object carry-in side). A carry-in transfer guide 100C as a movement guide mechanism is provided. As a result, the object to be cleaned, which has been cleaned by the cleaning ultrasonic cleaning device 50, is transferred from the cleaning ultrasonic cleaning device 50 side through the carry-in transfer guide 100C of the rinsing ultrasonic cleaning device 50 side. It is automatically transferred to the 50 side.

Also in this case, FIGS.
In addition to the same operation and effects as those of the first embodiment shown in FIG. 1, the cleaning side and the rinsing side are configured so as to be able to cooperate with each other. It is possible to obtain a highly reliable ultrasonic cleaning system 90 that can be improved, has good durability and maintainability, and can maintain good cleaning quality even when used for a long time.

[0113]

According to the first or second aspect of the present invention, since the ultrasonic cleaning tank is used while the inside of the barrel is conveyed from one end to the other end, the object to be cleaned is different from the conventional one. This does not cause a stagnation at one location, thereby making it possible to prevent the occurrence of cleaning unevenness peculiar to the ultrasonic cleaning tank. In addition, since only a part of one end of the barrel is immersed in the ultrasonic cleaning tank, the ultrasonic cleaning tank can be downsized. It is possible to reduce consumption.

In the present invention, if the object to be cleaned is carried in from one end in the barrel, the object is transferred to the other end by the rotation of the barrel and is discharged. Since all the steps of injection and air blow are performed, it is possible to dramatically improve workability as compared with the related art.

Further, according to the first aspect of the present invention, since the ultrasonic oscillator is shifted to the downstream side in the rotational direction of the barrel, the ultrasonic oscillator moves in the barrel while being slightly deviated in the rotational direction at the bottom of the barrel during transfer. Corresponding to the object to be cleaned, the ultrasonic waves for cleaning are oscillated from a position almost directly below the object to be cleaned, and the ultrasonic cleaning is performed more effectively. Therefore, the cleaning performance of the apparatus can be improved, and the object to be cleaned can be further cleaned.

According to the second aspect of the present invention, since the cleaning liquid is jetted to the downstream side in the rotational direction from the position directly below the center axis on the inner wall surface of the barrel, it moves while being slightly deviated in the rotational direction from the bottom of the barrel during transfer. The cleaning liquid is jetted for the entire object to be cleaned. Therefore, the water-based jet cleaning can be performed more effectively, the cleaning performance of the apparatus can be improved, and the object to be cleaned can be further cleaned.

According to the third aspect of the present invention, since the jetting direction of the liquid jet nozzle of the water-based jet washing mechanism is directed from a vertically lower direction to a direction slightly inclined to the rotating direction of the barrel,
In the same manner as in the second aspect of the invention, the cleaning liquid is jetted from the bottom of the barrel during transfer, corresponding to the object to be moved which is slightly deviated in the rotation direction from the bottom of the barrel. . Therefore, the cleaning performance of the apparatus can be improved, and the object to be cleaned can be further cleaned.

According to the fourth aspect of the invention, the cleaning performance of the ultrasonic cleaning is improved in the same manner as the first aspect of the invention, and the cleaning performance of the aqueous jet cleaning is improved in the same manner as the second aspect of the invention. You. For this reason, the object to be cleaned is cleaned without leaking as a whole, so that the cleaning effect is dramatically improved.

[Brief description of the drawings]

FIG. 1 is an overall schematic configuration diagram showing a first embodiment of the present invention.

FIG. 2 is an explanatory diagram illustrating an appearance including a cover according to the embodiment disclosed in FIG. 1;

FIG. 3 is a plan view of FIG. 2 with a part thereof omitted;

FIG. 4 is a partially omitted sectional view showing a cylindrical barrel portion disclosed in FIG. 1;

FIG. 5 is an explanatory diagram showing a positional relationship between a cylindrical barrel disclosed in FIG. 1 and an ultrasonic cleaning tank.

FIG. 6 is a partially omitted front view taken along arrow AA in FIG. 5;

FIG. 7 is a partially omitted front view taken along arrow BB in FIG. 5;

FIG. 8 is a partially omitted front view of the barrel viewed from the arrow AA in FIG. 4;

FIG. 9 is a partial cross-sectional view of the barrel shown in FIG. 8 as viewed from arrows CC.

FIG. 10 is a view showing another example of FIG. 9; FIG. 10 (A) is a partially omitted partial cross-sectional view showing an example in which two wires are provided as protrusions; FIG. 10C is a partially omitted partial cross-sectional view showing an example in which three wires are provided as the protruding portions, and FIG. 10C is a partially omitted partial view showing an example in which a wire mesh is provided as the protruding portions. .

FIG. 11 is a partially omitted front view of the barrel viewed from the arrow BB in FIG. 4;

FIG. 12 is an explanatory diagram showing details of a water-based jet cleaning mechanism disclosed in FIG. 1;

13 is a schematic front view partially omitted from the arrows QQ in FIG. 12;

FIG. 14 is a schematic cross-sectional view partially viewed from the direction of arrows RR in FIG. 12;

FIG. 15 is an overall schematic configuration diagram showing a second embodiment of the present invention.

FIG. 16 is an explanatory diagram showing an appearance including a cover of the second embodiment shown in FIG.

FIG. 17 is a partially omitted plan view of FIG. 16;

[Explanation of symbols]

 Reference Signs List 2 barrel 2a through-hole for liquid circulation 3 rotation holding mechanism 4 barrel drive mechanism 5 spiral plate mechanism 5a through-hole 7 ultrasonic cleaning tank 8 ultrasonic oscillator 28 one end 29 other end 30 cover 31 water jet cleaning mechanism 32 Liquid injection nozzle

Claims (4)

[Claims] 1. A cylindrical barrel in which an object to be cleaned is transported from one end to the other end and a through-hole for liquid circulation is formed over the entire periphery, and the other end of the barrel. A rotation holding mechanism for raising the side slightly from the one end side and rotatably holding the barrel in an inclined state, a barrel drive mechanism for rotating the barrel, and a barrel mounted on the inner wall surface of the barrel, Spiral spiral plate mechanism for transporting the object to be cleaned by rotation of, an ultrasonic cleaning tank for filling the inside with a cleaning liquid and immersing one end side of the barrel in the liquid, and an ultrasonic cleaning tank. Provided with an ultrasonic oscillator for performing ultrasonic cleaning through the cleaning liquid, and rotating the barrel from a line where the center axis of the barrel is lowered vertically downward onto the ultrasonic cleaning tank. Direction downstream Ultrasonic cleaner, characterized in that equipped somewhat shifted position. 2. A cylindrical barrel in which an object to be cleaned is conveyed from one end to the other end and a through-hole for liquid circulation is formed over the entire periphery, and the other end of the barrel. A rotation holding mechanism for raising the side slightly from the one end side and rotatably holding the barrel in an inclined state, a barrel drive mechanism for rotating the barrel, and a barrel mounted on the inner wall surface of the barrel, Spiral spiral plate mechanism for transporting the object to be cleaned by rotation of, an ultrasonic cleaning tank for filling the inside with a cleaning liquid and immersing one end side of the barrel in the liquid, and an ultrasonic cleaning tank. An ultrasonic oscillator provided for performing ultrasonic cleaning through the cleaning liquid, and a water-based jet cleaning mechanism for injecting a cleaning liquid onto an object to be cleaned coming out of the immersion area of the barrel; No An ultrasonic cleaning machine, wherein a position at which the barrel is slightly shifted to a downstream side in the rotational direction of the barrel from a line where a center axis of the barrel is vertically lowered on an inner wall surface of the barrel is defined as an injection position. . 3. The liquid ejecting nozzle portion is disposed near the center axis of the barrel, and the ejecting direction of the liquid ejecting nozzle portion is set to a direction slightly inclined from a vertically lower direction in a rotating direction of the barrel. The ultrasonic cleaner according to claim 2, wherein: 4. A cylindrical barrel in which an object to be cleaned is conveyed from one end to the other end, and a through-hole for liquid circulation is formed over the entire periphery, and the other end of the barrel. A rotation holding mechanism for raising the side slightly from the one end side and rotatably holding the barrel in an inclined state, a barrel drive mechanism for rotating the barrel, and a barrel mounted on the inner wall surface of the barrel, Spiral spiral plate mechanism for transporting the object to be cleaned by rotation of, an ultrasonic cleaning tank for filling the inside with a cleaning liquid and immersing one end side of the barrel in the liquid, and an ultrasonic cleaning tank. An ultrasonic oscillator that is equipped and performs ultrasonic cleaning through the cleaning liquid; and a water-based jet cleaning mechanism that sprays a cleaning liquid onto an object to be cleaned that is removed from the immersion area of the barrel. in An axis is provided at a position slightly shifted to the downstream side in the rotational direction of the barrel from a line vertically lowered on the ultrasonic cleaning tank, and a liquid jet nozzle of the water-based jet cleaning mechanism is provided with a central axis of the barrel. An ultrasonic cleaning machine characterized in that a jetting position is a position slightly shifted from a line vertically lowered on an inner wall surface of the barrel to a downstream side in the rotation direction of the barrel.