JP2003053279A - Barrel cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a barrel cleaning device capable of cleaning, rinsing and drying materials to be cleaned in a common cleaning vessel. SOLUTION: The barrel cleaning device is provided with a cleaning vessel 4; a barrel-shaped frame structure 10 placed in the cleaning vessel; a cleaning basket 16 rotatably supported in the frame structure and storing materials to be cleaned in the inside; a barrel device 6 installed in such a way to penetrate the end plate 18 of one side of the above frame structure and to enter the inside of the above basket with the center axis conforming to the above basket, and containing a nozzle cylinder 22 with a plugged top end and installed with a plurality of nozzles 38 in the bottom; a driving device 32 rotating the above basket in the above frame structure; and means 60, 62, 70, 72, 80 feeding the cleaning liquid, a rinsing liquid and a drying hot air from an introducing opening 34 of the above nozzle cylinder into the above nozzle cylinder.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention accommodates an object to be cleaned in a basket and rotates the basket in one cleaning tank so that the cleaning of the object to be cleaned and the subsequent rinsing and drying are continued. The present invention relates to a barrel cleaning device to be carried out.

[0002]

2. Description of the Related Art Conventionally, as a method of cleaning an object to be cleaned, for example, a work such as a machine part, a method of immersing the work in a cleaning solution, a method of stirring the work in the cleaning solution, and a method of spraying the cleaning solution There is known a method, a method of immersing a workpiece in a cleaning liquid, and applying ultrasonic waves to the cleaning liquid to vibrate the cleaning liquid.

[0003]

In the conventional cleaning method as described above, if the workpiece is cleaned and then naturally dried, the cleaning agent may adhere to and remain on the workpiece. For this reason, the cleaned workpieces are usually rinsed with a rinsing liquid, for example fresh water, and then dried with hot air or under reduced pressure. In order to dry the washed workpiece with hot air, a facility for hot air drying including a hot air drying chamber and a transfer facility for feeding the washed workpiece to the hot air drying chamber are required. Further, when the washed workpiece is dried under reduced pressure, equipment for reducing the pressure is required, and there is a problem that the apparatus is large and expensive.

The present invention provides a barrel cleaning device which can efficiently clean, rinse, and dry an object to be cleaned such as a workpiece in one common cleaning tank by using a simple barrel device. The purpose is to do.

[0005]

SUMMARY OF THE INVENTION A barrel cleaning apparatus according to the present invention includes a cleaning tank, a barrel-shaped frame structure disposed in the cleaning tank, and a rotatably supported inside the frame structure. It is installed so as to penetrate through the one end plate of the cleaning basket for accommodating the objects and the frame structure and to enter the basket in line with the central axis thereof.
A barrel device including a nozzle cylinder having a plurality of nozzles provided at the bottom and a closed tip, a drive device for rotating the basket in the frame structure, and a drive device provided on the one end plate side of the frame structure. And a means for sequentially feeding a cleaning liquid, a rinsing liquid, and hot air for drying from the inlet of the nozzle cylinder into the nozzle cylinder.

As the frame structure, a barrel structure having side plates arranged so as to cover the basket between both end plates can be used, and in this case, the side plates are the cleaning liquid, the rinsing liquid, and the liquid discharged from the basket. It acts as a reflector that reflects the hot air for drying back toward the basket.

As the frame structure, it is possible to use a frame structure in which the end plate and the side plate have openings for discharging the used cleaning liquid, rinsing liquid, and hot air for drying into the cleaning tank.

As an example of the nozzle cylinder, it is possible to use a nozzle cylinder having a plurality of nozzles, each of which is directed downward, at a fixed interval at the bottom of the portion located in the basket. it can.

As another example of the nozzle tube, a plurality of nozzles each having a pair of two openings formed at a certain angle directed generally downward are formed at the bottom of the portion located in the basket. Those provided at regular intervals can be used.

As the driving device, one that can rotate the basket in a fixed direction, or one that can alternately rotate in the forward and reverse directions is used.

By providing a control means for controlling the supply of the cleaning liquid, the supply of the rinsing liquid, and the supply of the hot air for drying in accordance with a preset sequence, the cleaning operation can be automatically operated.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The barrel cleaning apparatus of the present invention will be described below with reference to the illustrated embodiment. FIG. 1 is a diagram schematically showing the overall configuration of the barrel cleaning apparatus of the present invention. In FIG. 1, 4 is a cleaning tank of the barrel cleaning apparatus of the present invention, and a cleaning barrel apparatus 6 is arranged in the cleaning tank. The barrel device 6 is rotatably supported by a barrel-shaped, in this embodiment, cylindrical frame structure 10 supported by a handle 8 and rotary support portions 12 and 14 (FIG. 3) at both ends in the frame structure. The basket 16 has a mesh structure, and the nozzle cylinder 22 extends through the center bearing portion 20 of one end plate 18 of the frame structure 10 and extends into the basket 16.

The barrel device 6 will be described in more detail with reference to the enlarged views of FIGS. The basket 16 includes the end plates 1 of the frame structure 10 at the rotation supporting portions 12 and 14 at both ends.
It is rotatably supported by 8 and 24, and a pulley 28 is coupled to the support portion 14 via a shaft 26. Pulley 2
A drive device 32 such as a motor is coupled to the drive device 8 via a transmission means 30 such as a chain or a belt (FIG. 1). When the drive device 32 operates, the basket 16 rotates in the frame structure 10.

As described above, the nozzle cylinder 22 penetrates the center bearing portion 20 of the one end plate 18 of the frame structure 10 and penetrates into the basket 16. The nozzle cylinder 22 is fixed to the bearing portion 20 by brazing or another method. Further, the tip of the nozzle cylinder 22 inside the basket 16 is closed.

At the bottom of the portion of the nozzle cylinder 22 inside the basket, cleaning liquid, rinsing liquid, or hot air for drying sent from the inlet 34 is applied to an object to be cleaned 36 such as a workpiece housed in the basket. A nozzle 38 is provided for ejecting toward. As shown in FIG. 2, each of the nozzles 38 has a structure having two pairs of jet ports which are opened generally downward at an angle of about 5 ° to 20 °. It is desirable in terms of being able to perform cleaning, rinsing, and drying uniformly and efficiently,
It may be of a structure having one spout directed directly below.

The end plates 18, 24 and the side plate portion 40 of the frame structure 10 are washed with the cleaning liquid coming out of the basket 16.
It acts as a reflection plate for reflecting the rinse liquid and the hot air for drying toward the basket 16. Openings 42, 42, ... For discharging used cleaning liquid, rinsing liquid, and drying air to the cleaning tank 4 are formed in the end plates 18, 24 and the side plate portion 40 that act as a reflection plate. ing.

Returning to FIG. 1, reference numeral 44 is a liquid level detector for detecting the liquid level in the cleaning tank 4, and when the liquid level reaches the level of the sensor 46, it is necessary to prevent the liquid level from rising above the level. Generate the required control signals. A drainage pipe 50 for the cleaning liquid is provided at the bottom of the cleaning tank 4.
Is connected to a drain buffer tank 54 via a drain valve 52. 56 is a buffer tank 5 if necessary
It is a drain valve for discharging the used cleaning liquid in 4.

A cleaning solution tank 60 stores a new cleaning solution and / or a regenerated cleaning solution.
Is connected to the inlet 34 of the nozzle cylinder 22 via a pump 62, a cleaning liquid valve 64, and a pipe 66. 70
Is a blower, and the air sent from the blower is heated by the heat exchanger 72 and sent to the inlet 34 of the nozzle cylinder 22 through the valve 74 and the pipe 76. Reference numeral 80 denotes a water tank for storing, for example, purified rinsing water as a rinsing liquid, and at the time of rinsing the object 36 to be cleaned, the valve 82 is opened and the rinsing water is supplied to the inlet 34 of the nozzle cylinder 22 through the pipe 84.

As shown by the dotted line, a cleaning liquid regeneration treatment device is connected to the buffer tank 54 via a valve 90, and the used cleaning liquid is subjected to necessary treatments such as distillation and filtration.
It may be returned to the cleaning liquid tank 60 via the pipe 94.

Next, the operation of the barrel cleaning apparatus of the present invention shown in FIG. 1 will be described. In the cleaning process, first, the drain valve 52 is opened to drain the cleaning liquid in the cleaning tank 4. Cleaning object 3
6 is accommodated in the basket 16 and the frame structure 10
Along with this, it is placed in the cleaning tank 4. The frame structure 10 including the basket 16 is arranged in the cleaning tank 4 with the handle 8 being held by a crane or other carrying mechanism (not shown). The drain valve 52 is closed, the cleaning liquid valve 64 is opened,
The pump 62 is operated. The cleaning liquid in the cleaning liquid tank 60 is fed into the nozzle cylinder through the inlet of the nozzle cylinder 22, whereby the high-pressure cleaning liquid is ejected from each nozzle 38 toward the object 36 to be cleaned.

When the drive device 32 is operated, the basket 16 rotates within the frame structure 10, and the object 36 to be cleaned contained therein moves as the basket 16 rotates.
When it moves to some extent, it falls while rolling toward the bottom of the basket 16 due to gravity, and the entire surface of the object to be cleaned 36 is cleaned with a high-pressure cleaning liquid. The cleaning liquid ejected from the basket 16 as the basket 16 is rotated is reflected by the side plate portion 40 of the frame structure 10 acting as a reflection plate, and returned to the basket 16. The cleaned cleaning liquid flows into the cleaning tank 4 through the openings 42 formed in the end plates 18 and 24 and the side plate portion 40 and collects therein. Cleaning liquid 4 in cleaning tank 4
8 reaches the level of the liquid level sensor 46, the liquid level detector 4
4 generates a control signal to stop the pump 62 and close the valve 64 to stop the supply of the cleaning liquid. Cleaning object 36
The rotation speed of the basket 16 is set to 3 to 4 rotations per minute as an example, and the cleaning time is set to about 10 minutes, although it depends on the type.

Subsequently, the drive device 32 is operated to rotate the basket 16 at a speed lower than the above-described rotation speed, and the cleaning liquid 48 accumulated in the cleaning tank 4 is used to further clean the object 36 to be cleaned for a predetermined time. Next, the drive unit 32 is stopped, the drain valve 52 is opened, and the used cleaning liquid is stored in the buffer tank 54.
To discharge.

In the next rinse step, the drain valve 52
Is closed, the valve 82 for rinsing water is opened, and fresh water for rinsing and washing is sent from the water tank 80 to the nozzle cylinder 22 through the inlet 34. Rinse water is ejected from each nozzle 38 to rinse the article 36 to be cleaned. When the drive device 32 is operated and the basket 16 is rotated, the object 36 to be cleaned falls to the bottom of the basket 16 while rotating as in the cleaning, and the entire surface of the object 36 to be cleaned is efficiently rinsed.
At this time, if the drain valve 52 is closed, the rinse water collects in the cleaning tank 4, and when this reaches a preset level, the control signal from the liquid level detector 44 closes the valve 82 to stop the supply of rinse water. To do. After that, the basket 16 is rotated for a predetermined time and further rinsed with the accumulated rinse water.

The drive device 32 is stopped and the basket 16
The rotation is stopped, the drain valve 52 is opened, and the rinse water is drained to the buffer tank 54. In the rinsing step, the water to be cleaned 3 is supplied to the nozzle cylinder 22 with the drain valve 52 opened, and only the rinse water ejected from each nozzle 38 of the nozzle cylinder 22 rotates the basket 3 to be cleaned.
6 may be rinsed. Then, the object to be cleaned 36
There is no risk of rinsing water contaminated with. Also in the rinsing step, the rotation speed of the basket is set to, for example, 3 to 4 rotations per minute.

In the final drying step, the drain valve 52 is opened to completely discharge the rinse water in the cleaning tank 4, and the valve 7
4 is opened, and the blower 70 and the heat exchanger 72 are operated. Further, the driving device 32 is operated to rotate the basket 16 at a rate of, for example, 3 to 4 rotations per minute. The hot air heated to, for example, 120 ° C. to 150 ° C. in the heat exchanger 72 is sent from the inlet 34 of the nozzle cylinder 22 to the nozzle cylinder, and jetted from each nozzle 38 toward the object 36 to be cleaned in the rotating basket 16. And dry it. The hot air coming out of the basket 16 is reflected by the side plate portion 40 of the frame structure acting as a reflection plate and returns to the basket 16, so that the cleaning target 36 can be efficiently dried. The steam generated by the drying is discharged into the cleaning tank 4 through the opening 42 together with the hot air, and is discharged to the outside. Generally, heated air is used as the hot air, but heated nitrogen may be used if necessary.

In each of the steps of washing, rinsing and drying, the rotation direction of the basket 16 may be fixed to a fixed direction, but the rotation direction may be reversed every predetermined time. When the rotating direction of the basket 16 is reversed, the moving direction and the dropping direction of the object 36 to be cleaned in the basket are changed, and the cleaning, rinsing and drying can be performed more uniformly.

A washing means, a rinsing step, a control means for automatically controlling each operation of the pump 62, the blower 70, and the heat exchanger 72 required for the drying step according to a predetermined sequence are provided to perform the washing. It is also possible to automatically perform the steps of rinsing, rinsing and drying.

[0028]

As described above, according to the present invention, the cleaning liquid 36, the rinsing liquid, and the hot air for drying are sequentially fed into the nozzle cylinder 22, so that the object to be cleaned 36 is cleaned in the same cleaning tank 4 and rinsed. It is possible to wash and dry, and it is not necessary to provide a dedicated drying room, a transfer means for transferring the object to be washed to the drying room, or a decompression facility for drying, unlike the conventional device, and the entire structure is provided. Despite the fact that it is simple, it is possible to obtain the effect that the cleaning, rinsing and drying of the object to be cleaned can be carried out extremely efficiently.

Further, the basket 16 for containing the object to be cleaned
By providing the side plate portion 40 that acts as a reflection plate so as to surround the basket on the frame structure 10 that rotatably supports the cleaning liquid, the cleaning liquid, the rinsing liquid, and the hot air sprayed from the basket at the time of cleaning, rinsing and drying It can be reflected and returned to the basket 16 for cleaning,
It is possible to achieve the effect that the rinsing and drying can be performed more efficiently.

[Brief description of drawings]

FIG. 1 is an explanatory view schematically showing the overall structure of a barrel cleaning device of the present invention.

FIG. 2 is a diagram schematically showing a cross section taken along the line AA ′ of FIG.

FIG. 3 is an enlarged view schematically showing the structure of the cleaning tank of FIG. 1 and a barrel device arranged therein.

[Explanation of symbols]

4 cleaning tank 6 barrel device 10 frame structure 16 baskets 18 End plate 22 Nozzle tube 24 End plate 32 Drive 34 entrance 38 nozzles 40 Side plate 60 cleaning liquid tank 62 pumps 64 Cleaning liquid valve 70 blower 72 heat exchanger 80 Rinse water tank

Continued front page    (72) Inventor Kyozo Onishi             3-56, Nishi-Awaji, Higashiyodogawa-ku, Osaka-shi, Osaka             Sansan Electric Co., Ltd. (72) Inventor Hiroyasu Murata             3-56, Nishi-Awaji, Higashiyodogawa-ku, Osaka-shi, Osaka             Sansan Electric Co., Ltd. F term (reference) 3B201 AA46 AB33 AB45 BB02 BB21                       BB87 BB90 BB92 BB98 CC01                       CC12 CD22 CD33 CD41                 4K053 PA17 TA17 TA19 XA08 XA09                       XA22 XA43

Claims (7)

[Claims] 1. A barrel cleaning apparatus capable of cleaning, rinsing and drying the object to be cleaned by rotating a basket containing the object to be cleaned, the basket being disposed in the cleaning tank. A barrel-shaped frame structure supported so as to be supported, a cleaning basket rotatably supported in the frame structure and containing an object to be cleaned, and one of the end plates of the frame structure. A barrel device including a nozzle cylinder having a plurality of nozzles provided at a bottom portion and having a closed tip, the barrel device being installed so as to be inserted into the basket so as to coincide with the central axis, and the basket is rotated in the frame structure. A drive device and a cleaning liquid, a rinsing liquid, into the nozzle cylinder from an inlet of the nozzle cylinder provided on the one end plate side of the frame structure,
The above-mentioned barrel cleaning device, comprising means for sequentially feeding hot air for drying. 2. The frame structure has a side plate disposed between both end plates thereof so as to cover the basket, and the side plate reflects the cleaning liquid, the rinsing liquid and the hot air for drying, which have come out of the basket, toward the basket. The barrel cleaning device according to claim 1, wherein the barrel cleaning device acts as a reflecting plate. 3. The barrel cleaning according to claim 2, wherein an opening for discharging a cleaning liquid, a rinsing liquid, and hot air for drying into the cleaning tank is formed in the end plate and the side plate of the frame structure. apparatus. 4. The barrel cleaning device according to claim 1, wherein each nozzle provided at the bottom of the nozzle cylinder is composed of one opening directed downward. 5. The nozzle provided at the bottom of the nozzle cylinder is composed of a pair of two openings which are generally downwardly directed and open at a constant angle. The barrel cleaning device described in. 6. The barrel cleaning device according to claim 1, wherein the drive device can rotate the basket in a predetermined direction and can rotate the basket alternately in a forward direction and a reverse direction. 7. The barrel cleaning device according to claim 1, further comprising control means for controlling the supply of the cleaning liquid, the supply of the rinsing liquid, and the supply of the hot air for drying in accordance with a preset sequence. .