JPH06287780A - Washing treatment device and washing treatment using this treating device - Google Patents

Abstract

PURPOSE:To smoothly and rapidly execute washing, drying, etc., of objects to be treated, such as machined objects, by using an aq. washing treatment liquid in place of an org. solvent, such as fluorocarbon, as one of remedies to provide the protection of the ozonosphere of the atmosphere. CONSTITUTION:This treatment device has a liquid distributing vessel 9 which is mounted with a turn table 8 in a container 1, is placed with a perforated treating vessel 6 on this turn table 8 and communicates with this container 1, a hot air drying device E which dries the contents in this perforated treating vessel 6, a washing treatment liquid tank B in which the aq. washing treatment liquid is packed and a washing water tank C in which washing water is packed. The turn table 8 is rotated at a high speed and low speed in both forward and backward directions by a driving device M. The aq. washing treatment liquid and washing water are sent from the washing treatment liquid tank B and the washing water tank C through liquid distributing pipings 24, 25 via the liquid distributing vessel 9 arranged with level gages L1, L2 to the container 1 by pumps P1, P3 and the aq. washing treatment liquid and washing water are shaken of f.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning treatment apparatus for cleaning a work to which oil or a surface treatment agent is attached, and a cleaning treatment method using the cleaning treatment apparatus.

[0002]

BACKGROUND OF THE INVENTION Conventionally, organic solvents such as CFCs and trichloroethane have been used for cleaning small metal parts such as bolts, nuts and washers, but recently, as a part of measures to protect the ozone layer in the atmosphere, such The use of an aqueous cleaning treatment liquid instead of such an organic solvent is being studied. The problems in using the aqueous cleaning treatment liquid are that the cleaning wastewater must be treated and that the material to be treated after drying is slow to dry.

[0003]

2. Description of the Related Art Conventionally, in order to perform this type of cleaning treatment,
The object to be treated is immersed in a treatment tank filled with an aqueous cleaning treatment liquid and cleaning water in a predetermined order and further irradiated with ultrasonic waves to enhance the cleaning effect.

[0004]

According to such a method, one processing tank or processing machine is required for one step, and a large space for housing these processing tanks or processing machines is required. It is necessary that the object to be processed is transferred between the processing tanks or the processing machines, and the transfer requires manual labor or equipment, and the object to be processed may be damaged during the transfer. Mixing with cleaning water and mixing with cleaning water There are drawbacks such as that the frequency of renewal of cleaning water becomes high, the amount of cleaning waste liquid treated increases, and the drying of the object to be processed is slow. There has been a major obstacle to switching from water to an aqueous cleaning solution.

[0005]

SUMMARY OF THE INVENTION The present invention has the above-mentioned conventional problems.
As a means for solving the problem, the container (1) and the container (1)
The attached turntable (8) and the multiple turntables mounted on the turntable (8).
A hole treatment tank (6), a liquid distribution tank (9) communicating with the container (1),
Hot air dryer E for drying the contents in the porous treatment tank (6)
And a cleaning treatment liquid tank B filled with an aqueous cleaning treatment liquid
And a wash water tank C filled with wash water,
The rotary base (8) has a rotary shaft (3) in the vertical direction, and
Rotating in both forward and reverse directions by moving device M
The cleaning treatment liquid tank B and the cleaning water tank C are
Pump P₁, P₂Distributing pipes (24, 25)
The level gauge L is connected to the liquid tank (9).
₁, L₂Is placed and the valve MV is released from the container (1)._FourIntervenes
To provide a cleaning treatment apparatus A having a discharge pipe (29) for
The liquid distribution tank (9) of the cleaning processing apparatus A is an electric valve MV.₁, MV₂
Communicate with the container (1) by the distribution pipe (28A, 28B)
The level gauge L is installed in the liquid distribution tank (9).₁, L₂Place
And an operating device H is attached to the hot air drying device E,
A motor-operated valve MV is installed just above the porous treatment tank (6) in the container (1).
₃With new cleaning water supply pipe (22) communicating with new cleaning water injection
Using the cleaning processing apparatus A in which the apparatus D is arranged,
The object (18) is housed in the porous treatment tank (6), and the porous treatment tank (6) is
Place it on the turntable (8) and pump P₁Activate the cleaning process
Filled in the container (1) through the liquid distribution tank (9), and
Liquid level L where the object to be treated (18) is completely immersed₁At Pong
P P₁And then drive the porous treatment tank (6).
M₁By this, forward and reverse alternate rotation is performed at a low speed for a predetermined time. next
Motorized valve MV₁To open the cleaning treatment liquid tank B
Washing process that collects and shakes off the physical fluid, then the motorized valve MV
₁Close the electric valve MV ₃, MV_FourOpen the porous treatment tank (6)
The new cleaning water is sprayed from the new cleaning water spraying device D while rotating at low speed.
The cleaning wastewater is discharged to the outside of the system through the discharge pipe (29).
Out, motorized valve MV₁Close the pump P₂To activate
Fill the container (1) with washing water through the liquid distribution tank (9) and
Liquid level L where the object to be treated (18) in the treatment tank (6) is completely immersed₂
Pump P₂Stop and then drive the porous treatment tank (6).
Moving device M₁Intermittent or continuous rotation at low speed
After operating, motorized valve MV₂Open the water tank from the container (1)
Washing process in which washing water is collected in C and shaken off, porous treatment tank
(6) Drive device M₂It is operated while rotating at high speed by
Activating the chamber H to send hot air into the container (1) and shake the residual cleaning water.
Washing process consisting of a drying process of cutting, dehydration and drying
It provides a method.

[0006]

[Function] A container filled with an aqueous cleaning treatment liquid or cleaning water
(1) Workpiece is mounted via the turntable (8) installed inside.
The porous treatment tank (6) containing (18) is rotated. Depending on the shape of the object to be treated (18), the porous treatment tank (6) has a shape suitable for it. If desired, the porous treatment tank (6) can be rotated at high speed or low speed in forward rotation, reverse rotation, forward / reverse alternating rotation, continuous rotation, or intermittent rotation, so that the object to be treated (18) in the porous treatment tank (6) is Is uniformly contacted with the aqueous cleaning treatment liquid or cleaning water.

[0007] After the treatment, the liquid distribution pipes (28A, 28B) from the container (1)
The aqueous cleaning treatment liquid or cleaning water is supplied to tanks B and C by
Since the liquid is shaken by shaking the porous treatment tank (6) by further rotating the porous treatment tank (6), the recovery rate of the liquid is good and the amount of the liquid adhering to the object to be treated (18) is extremely small. Contamination of the cleaning liquid with the cleaning water is minimized, and the degree of renewal of the cleaning water is greatly reduced.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to one embodiment shown in FIGS. 1 to 3. A is a cleaning treatment apparatus, B is a cleaning treatment liquid tank, C is a cleaning water tank, and D is a cleaning liquid. E is a hot air dryer. In the cleaning apparatus A, (1) is the foundation (11) to the leg (12) and the spring.
The container (1) is supported via (13), the lid (30) is pivotally attached to the upper part of the container (1) by a hinge (31), and the lid (30) has a hot air vent hole (32). A container (1) is provided on the outer circumference of the container (1).
A liquid distribution tank (9) communicating with the inside through a communication hole (10) is provided, and a liquid distribution pipe (28A) in which a motor-operated valve MV ₁ is interposed at the bottom, a liquid distribution pipe (28B) in which a motor-operated valve MV ₂ is interposed, The discharge pipe (29) and the liquid distribution pipe (28A) with the motor-operated valve MV ₄ interposed are the cleaning treatment liquid tank B
Then, the liquid distribution pipes (28B) are connected to the wash water tank C, respectively. Then, heaters (33, 34) are attached to the cleaning treatment liquid tank B and the cleaning water tank C.

A rotary bearing (2) hangs down from the center of the bottom of the container (1), is supported by a bearing (4) inside the rotary bearing (2), and is sealed by a mechanical seal (5). The rotating shaft (3) penetrates and the basket (7) is attached to the upper end of the rotating shaft (3).
The rotary table (8) on which the processing tank (6) having a large number of pores (23) mounted thereon is mounted in a replaceable manner is fixed. Axis of rotation
Pulleys (16, 17) are fitted to the lower end of (3), and the pulleys (16, 17) are connected to the pulleys (14, 17A) of the low speed motor M ₁ and the high speed motor M ₂ via the belts (16A, 17A). , 15). In order to switch the rotation of the processing tank (6) between low speed and high speed, two motors M ₁ and M ₂ for low speed and high speed are provided as in this embodiment, and an inverter is used with one drive source. A known switching method such as switching can be applied. From the cleaning treatment liquid tank B and the cleaning water tank C, the liquid distribution pipes (24, 25) with the pumps P ₁ and P ₂ interposed respectively are inserted, and the liquid distribution tanks are provided.
Contact (9). A pair of level gauges L in the liquid distribution tank (9)
₁ and L ₂ are arranged. New washing water injection device D is a container (1)
It is composed of a nozzle pipe (21) arranged directly above the processing tank (6) and having a large number of holes (20), and the nozzle pipe (21) is a motorized valve MV.
Contact the new wash water supply pipe (22) where ₃ is interposed. The hot-air drying device E is arranged in the upper part of the container (1) of the cleaning treatment device A, has a jet pipe (26A) at the tip, a heating wire (26B) inside, and a blower (27) at the rear. (26) consists of a heat ray (26
B) and blower (27) are controlled by actuator H.
The following steps are performed in order to perform the cleaning process by the above cleaning system system.

[Cleaning Treatment Step] The pump P ₁ is operated to discharge the aqueous cleaning treatment liquid in which the detergent, degreasing agent, etc. are dissolved from the cleaning treatment liquid tank B through the liquid distribution pipe (24) and the liquid distribution tank (9). container
(1) Fill inside. The aqueous cleaning treatment liquid is usually heated to about 60 to 80 ° C. by the heater (33). The aqueous cleaning treatment liquid is supplied until the object to be treated (18) in the treatment tank (6) is completely immersed, and the liquid level at that time is the level gauge L ₁
Detected by the signal from the level gauge L ₁ , the pump P ₁ is stopped and the supply of the aqueous cleaning treatment liquid is cut off. After maintaining the above for about 3 to 5 seconds, the low-speed motor M ₁ is driven to rotate the processing tank (6) alternately at low speed for forward and reverse rotation for several minutes, so that the object to be processed (18) is completely washed. , Processing tank
Stop the rotation of (6). Next, the motor-operated valve MV ₁ is opened to collect the aqueous cleaning treatment liquid in the container (1) from the liquid distribution pipe (28A) into the cleaning treatment liquid tank B. After most of the aqueous cleaning treatment liquid in the container (1) is discharged, the high speed motor M ₂ is driven to continue high speed rotation for about 2 to 3 minutes to shake the aqueous cleaning treatment liquid adhering to the object to be treated. Cut. The above is the cleaning process.

[Washing Step] The washing water in the washing water tank C is filled by the pump P ₂ into the liquid distribution tank (9) and further the container (1) through the liquid distribution pipe (25). The position is adjusted by a level gauge L ₂ linked with the pump P ₂ . The washing water is usually heated by the heater (34) in the same manner as the aqueous washing treatment liquid.
It is heated to about 80 ° C. When the washing water in the container (1) reaches a predetermined liquid level, that is, when the object (18) to be treated is completely immersed, the pump P ₂ is stopped and the low speed motor M ₁ is driven. The drive of the motor M ₁ is, for example, 1 minute drive (forward rotation),
A cycle of 5 second stop, 1 minute drive (reverse rotation), 5 second stop is repeated once or twice or more. Of course, only normal rotation may be performed intermittently or continuously. Next, while maintaining the low speed rotation by the motor M _{1, the} motor-operated valve MV ₂ is opened to collect the wash water from the container (1) through the liquid distribution pipe (28B) into the wash water tank C. After most of the cleaning water in the container (1) has been discharged, the rotation is continued for about 1 minute to shake off the cleaning water adhering to the object to be treated (18). The above is the washing step. If there is a high possibility that the cleaning solution adhering due to the shape of the object to be processed will mix into the cleaning water tank C, the motor-operated valves MV ₃ and MV ₄ are opened before the cleaning step and the processing tank (6) is opened. If the cleaning water is discharged from the discharge pipe (29) to the outside of the system while maintaining the low speed rotation, new cleaning water is sprayed from the new cleaning water spraying device D for about 30 seconds to clean the cleaning water. Dirt is improved.

[Drying Step] Next, high-speed motor M ₂ is rotated at a high speed to completely dehydrate the container and at the same time.
The operating device H is operated through the hot air passage hole (32) of the lid (30) of (1) to blow hot air from the hot air dryer E for 3 to 5 minutes.
Spray on 8) to dry completely. In the case of the present embodiment, since the aqueous cleaning treatment liquid and the cleaning water are heated to about 60 to 80 ° C. as described above, the object to be treated (18) is dried very quickly. The above is the drying process. In this case, open the motorized valves MV ₁ and MV ₂ of the liquid distribution pipes (28A, 28B),
Hot air is sprayed through the container (1) onto the surface of the aqueous cleaning treatment liquid in the cleaning treatment liquid tank B and the surface of the cleaning water in the cleaning water tank C to keep the heated aqueous cleaning treatment liquid and the cleaning water warm. .

Since the cleaning process of the object to be processed is completed by the above-mentioned three steps, the operation is completed by removing the processing tank (6) from the rotary table (8) and removing it from the container (1).
The above steps can be sequenced, thus eliminating the need for any manual labor.

In the present invention, in addition to the above embodiment, a buffer plate may be attached in the container (1), or an ultrasonic transmitter may be provided.

[0015]

Since the present invention has the above-mentioned structure, it is not necessary to move the object to be processed from the processing device to the processing device. Therefore, the device, the labor and the like required for moving the object to be processed are omitted and the porous structure is provided. Since the object to be treated in the treatment tank rotates with the porous treatment tank while being immersed in the cleaning treatment liquid or cleaning water, the objects to be treated are bound by centrifugal force, do not collide with each other, and are not damaged, and The details of the product can be quickly washed and washed with water, the treatment efficiency is improved, and the washing treatment is performed uniformly. Also, it adheres to the object to be processed,
Since the permeating cleaning treatment liquid and cleaning water are also centrifugally dehydrated, the residual amount is reduced and hot air drying is facilitated. For this reason, in the present invention, the ease of degreasing and drying with an organic solvent typified by CFC and trichloroethane, which has been conventionally used, is made possible even with an aqueous cleaning treatment agent. In addition, the recovery rate of the cleaning treatment liquid and cleaning water is improved, the cleaning treatment liquid is less likely to mix with the cleaning water, the amount of cleaning water used during cleaning is extremely small, and the frequency of cleaning water replacement is great. Therefore, the amount of waste water for cleaning is reduced, the treatment is simple and easy, and the treatment cost is reduced. In the present invention, the aqueous cleaning treatment in line with the protection measures for the ozone layer in the atmosphere was first put into practical use. .

[Brief description of drawings]

 1 to 3 show an embodiment of the present invention.

1] Front sectional view

FIG. 2 is a perspective view of the main body of the surface treatment apparatus.

FIG. 3 is a perspective view of a porous processing tank and a turntable.

[Explanation of symbols]

1 container 3 rotation axis 6 perforated processing vessel 8 turntable 9 liquid distribution tank 18 to be treated (content) 24,25,28A, 28B liquid distribution pipe 29 discharge pipe _{MV 1, MV 2, MV 3} , MV 4 electric valve L ₁ , L ₂ Level gauge M ₁ , M ₂ Motor A Cleaning treatment device B Cleaning treatment liquid tank C Cleaning water tank D New cleaning water injection device E Hot air dryer H Hot air dryer operating device

Claims (2)

[Claims] 1. A container, a rotary table mounted in the container, a porous processing tank placed on the rotary table, a liquid distribution tank communicating with the container, and contents in the porous processing tank. A hot air dryer, a cleaning treatment liquid tank filled with an aqueous cleaning treatment liquid, and a cleaning water tank filled with cleaning water,
The rotary table has a vertical rotary shaft, and is rotated in both forward and reverse directions at high speed and low speed by a drive unit M, and the cleaning treatment liquid tank and the cleaning water tank are provided with pumps P ₁ and P _2. Cleaning treatment equipment characterized in that level gauges L ₁ and L ₂ are arranged in the liquid distribution tanks respectively connected to the liquid distribution tanks by pipes, and a discharge pipe interposing a valve is inserted from the container. 2. A container, a rotary table mounted in the container, a porous processing tank mounted on the rotary table, a liquid distribution tank communicating with the container, and contents in the porous processing tank. A hot air dryer, a cleaning treatment liquid tank filled with an aqueous cleaning treatment liquid, and a cleaning water tank filled with cleaning water,
The rotary table has a vertical rotary shaft, and is rotated in both forward and reverse directions at high speed and low speed by a drive unit M, and the cleaning treatment liquid tank and the cleaning water tank are provided with pumps P ₁ and P _2. Each of them is connected to a liquid distribution tank by a pipe, and is also connected to a container by a liquid distribution pipe in which motor-operated valves MV ₁ and MV ₂ are interposed.
_1, L ₂ are brought arranged, the hot air drying apparatus mounted actuator H is the new cleaning even immediately above the porous treatment tank vessel electric valve MV ₃ Contact intervening newly cleaning water supply pipe In a cleaning treatment device in which a water injection device is arranged and a discharge pipe in which a motor-operated valve MV ₄ is interposed is inserted from a container, an object to be treated is accommodated in a porous treatment tank, and the porous treatment tank is mounted on a turntable. Then, the pump P ₁ is operated to fill the container with the aqueous cleaning treatment liquid through the liquid distribution tank, and the pump P ₁ is stopped at the liquid level L ₁ at which the object to be treated in the porous treatment tank is completely immersed. Then, after that, the porous treatment tank is stopped by the drive unit M _{1 at a} low speed for a predetermined period of time after alternating forward and reverse rotations, and then the motor-operated valve MV ₁ is opened to collect and shake off the aqueous cleaning treatment liquid in the cleaning treatment liquid tank. Cleaning process step, then the motor-operated valve MV ₁ is closed and the motor-operated valve M
V ₃ and MV ₄ are opened and the porous treatment tank is rotated at low speed. New cleaning water is injected from the new cleaning water injection device for cleaning, and the waste water is discharged from the discharge pipe to the outside of the system, and the motor operated valve MV ₁ is closed. Occasionally, the pump P ₂ is operated to fill the washing water into the container via the liquid distribution tank, and the pump P ₂ is stopped at the liquid level L ₂ at which the object to be treated in the porous treatment tank is completely immersed. After that, the porous treatment tank is intermittently or continuously rotated at a low speed by the driving device M ₁ , and then the electric valve MV ₂ is opened to collect the washing water from the container into the washing water tank and shake it off. Drying process in which H is operated while being rotated at high speed by M ₂ to send hot air into the container to perform dewatering and drying of the residual cleaning water by shaking, comprising the above steps