JPH08281223A - Precision washer for machine parts or the like - Google Patents

Abstract

PURPOSE: To rotate a washing basket to splash water droplets by centrifugal force and to make smooth the flow of hot air to enhance drying efficiency by putting a lot of materials to be washed in the washing basket to wash them in a washing tank before drying them in a drying tank while leaving them in the washing basket. CONSTITUTION: A washing basket 2 is held by a conveyor 4 and is immersed in a washing tank 1, and is rotated around the horizontal axis by the drive of a motor 16 to perform washing. When the washing is finished, the washing basket 2 is conveyed into a drying tank 3 from inside of the washing tank 1 while being, held by the conveyor 4. Right and left handles 12, 13 of the conveyor 4 are separated from each other thereat, and the washing basket 2 is mounted on a turntable 21. Next, an arm 11 is raised, and a shutter 20 of the drying tank 3 is closed, and the washing tank 2 is held by right and left clicks, and the turntable 21 is rotated. After a required time elapsed, the washing basket 2 is taken out from the drying tank 3 to finish a washing and drying process. In this way, since water droplets are splashed by centrifugal force and the flow of hot air during drying is made smooth, drying efficiency is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a precision cleaning apparatus for machine parts or the like for placing a large number of objects to be cleaned in a cleaning basket and precisely cleaning the objects to be cleaned in basket units.

[0002]

2. Description of the Related Art Conventionally, precision cleaning of mechanical parts, electronic equipment parts, etc. has been carried out simply and efficiently using a chlorine-based solvent such as fluorocarbon or trichloroethane. However, this type of solvent is considered to be a cause of ozone layer depletion, and it has been urgently necessary to abolish it completely. As for the alternative cleaning method therefor, an extremely large number of devices have been proposed and implemented by trial and error. Under these circumstances, use of solvents that are convenient but have not been confirmed to be safe, and hydrocarbon solvents that cause global warming without depleting the ozone layer should be avoided. . That point,
Although water-based cleaning agents require proper treatment of wastewater, they are highly safe and are expected to be widely used in the future. Among them, the field of application in which only high-temperature pure water can be used for cleaning is quite wide, and since wastewater treatment and recovery / reuse are easy, it is considered that it will be widely used for precision cleaning in the future.

By the way, in the actual cleaning of machine parts or the like at a production site, etc., in order to efficiently clean various mass-produced various parts, a large number of objects to be cleaned are put in a cleaning basket, and the cleaning is performed in basket units. Very often washed. In such a cleaning device, when using freon or trichloroethane, there was no problem even if the objects to be cleaned were in contact with each other because of their high oil-dissolving power. There is a problem that it is not possible to sufficiently clean the objects if they are in contact with each other.

Therefore, there is used one in which the cleaning basket is rotated in the cleaning so that the contact portions of the objects to be cleaned separate from each other and come into contact with the cleaning water. In order to improve the cleaning effect, it is preferable to rotate the cleaning basket around the horizontal axis in the cleaning tank.

The object to be cleaned is dried after cleaning, but in the above apparatus, the cleaning basket is rotated around the horizontal axis in the drying tank by the same mechanism as the mechanism for rotating the cleaning basket around the horizontal axis in the cleaning tank. Therefore, there is a problem that the objects to be cleaned collide with each other and are damaged, so that the cleaning basket is dried without rotating.

[0006]

In the above conventional cleaning,
In the drying process, since the washing basket is stationary in the drying tank, there is a problem that it takes a lot of time and energy for drying.

An object of the present invention is to provide a precision cleaning device for machine parts or the like, which can efficiently dry a large number of objects to be cleaned in a cleaning basket after cleaning.

[0008]

A precision cleaning device for machine parts and the like according to the present invention comprises a cleaning tank in which a cleaning liquid is stored, and a cleaning basket which contains a number of objects to be cleaned and is immersed in the cleaning tank and rotated. In a precision cleaning device for machine parts and the like, which includes a drying tank for drying the cleaning basket after cleaning and the cleaning basket, and a conveyor for transporting the cleaning basket, the cleaning basket is used in the cleaning tank and in the drying tank. It is characterized in that each of them is adapted to rotate inside.

The cleaning basket is placed around the horizontal axis in the cleaning tank.
It is preferable to rotate around a vertical axis in the drying tank. This is carried out, for example, by providing the transporting machine with a motor or the like for rotating the cleaning basket around a horizontal axis and providing a turntable for rotating the cleaning basket around a vertical axis in the drying tank.

It is preferable to provide a blower for sending hot air into the drying tank.

[0011]

According to the precision cleaning apparatus for machine parts and the like of the present invention, a large number of objects to be cleaned are put into a washing basket and washed in a washing tank, and then dried in a drying tank while being put in the washing basket. However, at this time, since the cleaning basket rotates, water droplets are blown off by centrifugal force, and the flow of hot air during drying becomes smooth.

The cleaning basket is arranged around the horizontal axis in the cleaning tank.
In the case where the dryer rotates around the vertical axis in the drying tank, the movement of the object to be cleaned is large in the cleaning tank, and the effect of increasing the cleaning efficiency by touching the uncleaned surface with the cleaning water becomes large. The buffering effect of water prevents collisions between them, causing water droplets to be blown off by centrifugal force in the drying tank, and the flow of hot air during drying is smooth, as well as damage to the items to be cleaned. Sticking is prevented.

Further, in the case where a blower for sending hot air into the drying tank is provided, it is possible to compensate for the decrease in drying efficiency due to the inability to increase the movement of the object to be cleaned.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. In the following description, the left and right means the left and right in the figure.

FIGS. 1 to 3 show a precision cleaning apparatus for machine parts and the like according to the present invention. The apparatus comprises a cleaning tank (1) in which high temperature pure water is stored as a cleaning liquid, and a cleaning tank (1 )
It is provided with a drying tank (3) arranged immediately on the left side of the cleaning basket, a cleaning basket (2) containing a large number of objects to be cleaned, and a carrier (4) for transporting the cleaning basket (2).

At the bottom of the cleaning tank (1), an ultrasonic transducer (5)
Is provided. The cleaning liquid in the cleaning tank (1) is circulated through the filter (7) by the liquid circulation pump (6).

The cleaning basket (2) is cylindrical and has a through shaft (8) at its center. The cleaning basket (2) is held sideways, i.e., the penetrating shaft (8) is held by the carrier (4) so that the penetrating shaft (8) is horizontal, and the penetrating shaft (8) is kept clean and dry. It is processed horizontally. A serration (14) is provided at the right end of the penetrating shaft (8). Cleaning basket
(2) is made of a stainless steel frame and a wire mesh having openings of 2 to 15 mm so that the object to be cleaned does not fall off.

Above the cleaning tank (1) is a cleaning tank being cleaned.
A shutter (20) for closing (1) is provided. This shutter (20) can be moved to the left at the time of drying to close the drying tank (3) as shown by the broken line in FIG.

The carrier (4) is a rail extending in the left-right direction.
A dolly (10) moving along (9), a vertical arm (11) mounted on the dolly (10) so as to be vertically movable, and a vertical arm (1
It is attached to the lower end of 1) so that it can move left and right
It is provided with a pair of left and right hands (12) and (13) for holding or releasing (2).

As shown in detail in FIG. 2, the left hand (12)
Is an inverted L shape, and the right end of the horizontal part is a vertical arm (11).
It is inserted in a horizontal guide tube (15) provided at the lower end of the. The right hand (13) is an inverted L shape symmetrical to the left hand (12), and the left end of the horizontal part is inserted into the horizontal guide tube (15). The left and right hands (12) and (13) are driven so as to approach or separate from each other. On the right side of the right hand (13), the motor (16) is attached.
A boss portion (17) rotated by a motor (16) around a horizontal axis is provided on the left side surface of (13). Boss (17)
The hole (17a) that fits the serration (14) of the penetrating shaft (8) of the cleaning basket (2) is opened in the cleaning basket (2) .When the right hand (13) is moved to the left, the cleaning basket (2) The serration (14) of the penetrating shaft (8) meshes with the boss (17) and drives the motor (16) to rotate the cleaning basket (2) around the horizontal axis. The left hand (12) has a through hole (18) into which the left end of the through shaft (8) of the cleaning basket (2) is fitted.

In the drying tank (3), there is provided a turntable (21) rotatable about a vertical axis. A motor (22) for driving the turntable (21) below the bottom wall of the drying tank (3)
A blower (23) for circulating hot air is provided.

As shown in FIG. 3, a pair of left and right cleaning basket holding claws (24) and (24) are provided on the upper surface of the turntable (21). The left and right claws (24) (24) can be manually moved from a released state shown by a broken line in the figure to a sandwiching state shown by a solid line in the figure.

In the above cleaning device, the cleaning basket (2) is
It is held by the carrier (4), immersed in the cleaning tank (1), and rotated by driving the motor (16) about a horizontal axis to be cleaned. After cleaning, the cleaning basket (2) is conveyed from the cleaning tank (1) to the drying tank (3) while being held by the conveyor (4). Here, the left and right hands (12, 13) of the carrier (4) are separated from each other, and the cleaning basket (2) is placed on the turntable (21).
Put it on top. Then, the arm (11) is raised and the drying tank is
The shutter (20) of (3) is closed, the cleaning basket (2) is clamped by the left and right claws (24), (24), and the turntable (21) is rotated. After the required time has elapsed, the cleaning basket (2) is taken out from the drying tank (3), and the cleaning / drying process is completed.

According to the above cleaning apparatus, in the cleaning tank (1), a large number of objects to be cleaned in the cleaning basket (2) are stored in the cleaning basket.
(2) is moved as it rotates around the horizontal axis, the parts where the objects to be cleaned are in contact are separated, and the uncleaned surface of the objects to be cleaned is exposed to the cleaning water. Good cleaning is done. Further, the buffer effect of water prevents the objects to be cleaned from hitting each other and being damaged. In the drying tank (3),
Since the rotation of the cleaning basket (2) is about the vertical axis, the cleaning target is prevented from being damaged. In addition, water drops are blown off by centrifugal force as the cleaning basket (2) rotates, and the flow of hot air during drying becomes smooth, resulting in improved drying efficiency. By providing the blower (23) for blowing the hot air, the object to be cleaned can be dried more reliably in a short time.

In the above, as the cleaning water, RO water or city water is used in addition to pure water. Also, when sufficient cleaning cannot be obtained with water (pure water) alone, a cleaning agent (mainly a chemical solution) may be used. In addition to the ultrasonic vibrator, a nozzle for jetting underwater jets is provided, The flow of the cleaning liquid may be promoted. By doing so, the cleaning efficiency is further enhanced. Further, the number of cleaning tanks is not limited to one, and a plurality of cleaning tanks may be provided.

[0026]

According to the precision cleaning apparatus for machine parts and the like of the present invention, water droplets are blown off by centrifugal force and the flow of hot air during drying becomes smooth, so that the drying efficiency is improved.

The washing basket is arranged around the horizontal axis in the washing tank.
In the case where the dryer rotates around the vertical axis in the drying tank, the movement of the object to be cleaned is large in the cleaning tank, and the effect of increasing the cleaning efficiency by touching the uncleaned surface with the cleaning water becomes large. The buffer effect of water prevents collisions between them, causing water droplets to be blown off by centrifugal force in the drying tank and smoothing the flow of hot air during drying, as well as damaging the items to be cleaned. Sticking is prevented. That is, it is possible to enhance the cleaning efficiency and the drying efficiency without damaging the object to be cleaned.

Further, in the case where the blower for sending hot air into the drying tank is provided, the decrease in the drying efficiency due to the inability to increase the movement of the object to be cleaned can be compensated, so that the drying efficiency is further improved. To do.

[Brief description of drawings]

FIG. 1 is a front view schematically showing an embodiment of a precision cleaning device for machine parts and the like according to the present invention.

FIG. 2 is a partially cutaway front view showing a main part of a mechanism for rotating a cleaning basket around a horizontal axis.

FIG. 3 is a front view showing a main part of a mechanism for rotating a cleaning basket around a vertical axis.

[Explanation of symbols]

 (1) Washing tank (2) Washing basket (3) Drying tank (4) Conveyor (23) Blower

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuyuki Miyake 5-3 28 Nishi-Kujo, Konohana-ku, Osaka City Hitachi Shipbuilding Co., Ltd. (72) Kazunori Kiba 5-28 3-Kujo, Konohana-ku, Osaka Hitachi Shipbuilding Co., Ltd. (72) Inventor Kazuo Yoshida 5-3-28 Nishikujo, Konohana-ku, Osaka City Hitachi Shipbuilding Co., Ltd. (72) Inventor Shinzo Tsubaki, Nishikujo 5-chome 3-28, Konohana-ku, Osaka Hitachi Shipbuilding Co., Ltd. Incorporated (72) Inventor Akira Katsuura 1-13-11 Shinji, Higashinari-ku, Osaka City Katsuura Engineering Service Co., Ltd.

Claims (3)

[Claims] 1. A cleaning tank (1) in which a cleaning liquid is stored, a cleaning basket (2) containing a large number of objects to be cleaned and immersed in the cleaning tank (1), and an object to be cleaned after cleaning. Drying tank (3) that can dry the basket (2) and a carrier that conveys the cleaning basket (2)
(4) In the precision cleaning device for machine parts, etc., the cleaning basket (2) is designed to rotate in the cleaning tank (1) and the drying tank (3) respectively. Precision cleaning equipment. 2. The cleaning basket (2) is adapted to rotate about a horizontal axis in the cleaning tank (1) and about a vertical axis in the drying tank (3). Precision cleaning equipment for the listed machine parts. 3. A blower (2) for feeding hot air into the drying tank (3).
3) is provided, Claim 1 or 2 characterized by the above-mentioned.
Precision cleaning equipment for the listed machine parts.