JP2982885B2 - Cleaning treatment device and cleaning treatment method using the treatment device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning apparatus for cleaning a workpiece to which, for example, oil or a surface treating agent has adhered, and a cleaning method using the cleaning apparatus.

[0002]

Background of the Invention Organic solvents such as chlorofluorocarbons and trichloroethane have been used for cleaning small metal parts such as bolts, nuts and washers. Recently, as a part of measures to protect the ozone layer in the atmosphere, such solvents have been used. The use of aqueous cleaning solutions instead of organic solvents has been studied. The problems in using the aqueous cleaning treatment liquid include the necessity of treating the cleaning wastewater and the slow drying of the object after cleaning.

[0003]

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

[0004]

According to such a method, one processing tank or processing machine is required for one process, and a large space for accommodating these processing tanks or processing machines is required. It is necessary that the object to be processed is transported between the processing tanks or the processing machines, and it is necessary that humans or equipment be used for the transportation and that the object to be processed may be damaged during the transportation. Mixing with washing water and mixing with washing water, the frequency of renewal of washing water increases, increasing the amount of washing waste liquid treated, and slowing down drying of the object to be treated. This has been a major hindrance to switching from water to an aqueous cleaning treatment solution.

[0005]

Means for Solving the Problems As means for solving the above-mentioned conventional problems, the present invention provides a container (1), a turntable (8) mounted in the container (1), and a turntable (8). ), And a liquid distribution tank (9) communicating with the vessel (1).
And the new washing water is sprayed on the contents in the porous treatment tank (6).
A new washing water injection device D, a hot air drying device E for drying the contents in the perforated treatment tank (6), a washing solution tank B filled with an aqueous washing solution, and a washing solution filled with washing water The rotary table (8) has a rotating shaft (3) in the vertical direction, and is rotated at high speed and low speed in both the forward and reverse directions by the driving device M, and the cleaning treatment liquid tank B and the cleaning tank Water tank C is a liquid distribution pipe with pumps P ₁ and P ₂ interposed
(24,25) communicated with the upper part of the liquid distribution tank (9) respectively, and
The valve MV _1, two of the liquid distribution pipe MV ₂ mediated '28A, 28
B) to the lower part of the distribution tank (9).
(9) is provided with level gauges L ₁ and L ₂ ,
(1) providing a cleaning device A discharge pipe valve MV ₄ mediated (29) is issued difference from liquid distribution tank of the cleaning apparatus A (9) is an electric valve MV _1, MV ₂ Two liquid distribution pipes interposed
(28A, 28B) liquid distribution tank by (9) brought contact with the lower, liquid distribution tank (9) in the forced placement level gauge L _1, L ₂ is, in the heat <br/> air drying device E actuator H is attached, the new washing water
The injection device D is disposed immediately above the perforated processing tank (6) and
The new washing water jetting device D using the cleaning device A new cleaning water supply pipe electric valve MV ₃ mediated (22) is contacted, housed in a porous treatment tank treatment object (18) (6) And the porous treatment tank (6)
Is placed on the turntable (8), and the power of the two liquid distribution pipes (28A, 28B) is
Valve operating MV _1, M V ₂ and the discharge pipe motor-operated valve MV ₄ (29)
A closed rinsing cleaning liquid by operating the pump P ₁ while filling in the container (1) via Haieki tank (9), a porous treatment tank (6)
Pump P in the liquid level L ₁ in which the processing of the inner (18) is completely immersed
₁ is stopped, and then the porous processing tank (6) is driven by the driving device M ₁
By Shi was stopped after forward and reverse alternating rotation at a predetermined time slow
Because, then one liquid distribution pipe (28A) cleaning process only recovering an aqueous cleaning liquid One shaking off the electric valve MV ₁ an open cleaning liquid tank B, the next one liquid distribution pipe (28A) electric valve MV ₁ of
Closed electric valve MV ₃ and the drain pipe of the new cleaning water supply pipe (22)
(29) perforated processing vessel (6) in front of the low-speed rotation is allowed Oneゝnew washing water is injected from the new washing water ejecting apparatus D washing <br/> washing wastewater subjected to purification in discharge pipe opens the electric valve MV ₄ of discharged from (29) out of the system, distribution
Or closed electric valve MV ₁ of the liquid pipe (28A)ゝfurther new washing Mizukyo
The motor-operated valve MV ₃ of the supply pipe (22) and the motor- operated valve M of the drain pipe (29)
Close V _4, liquid distribution tank wash water by operating the pump P ₂ (9)
Is filled in the container (1) via a perforated processing vessel (6) to be treated in (18) stops the pump P ₂ in the liquid level L ₂ completely immersed, accordingly later perforated processing vessel (6 ) was allowed to intermittent or continuous rotation at low speed by a driving device M _1, the electric valve MV ₂
Is opened, the washing water is collected from the container (1) into the washing water tank C, and the water washing step of shaking is performed.
It intended to provide a cleaning method comprising a drying step of performing a shaking-off dehydration and drying of the high-speed rotation allowed while hot air dryers operating the actuator H of E sends into the container (1) hot air remaining wash water by ₂ is there.

[0006]

In the cleaning process, the porous processing tank (6) containing the object to be processed (18) is rotated via the turntable (8) mounted in the container (1) filled with the aqueous cleaning liquid. . The shape of the porous processing tank (6) is appropriately selected according to the shape of the processing object (18). The porous treatment tank (6) may be rotated at a high or low speed as desired, such as forward rotation, reverse rotation, forward / reverse alternating rotation,
Continuous rotation, intermittent rotation, so that the porous treatment tank (6)
The aqueous cleaning solution is uniformly contacted with the object (18) inside.

[0007] After the washing process, the liquid distribution pipe is removed from the container (1).
(28A) recovering the aqueous cleaning solution into tank B,
Further, since the liquid is shaken off by rotating the porous processing tank (6), the recovery rate of the liquid is good, and the amount of the liquid adhering to the processing object (18) is extremely small. In the washing process, new washing water is first treated
Since the pre-cleaning is performed by spraying the material (18),
The amount of liquid adhering to the container (1) is kept to a minimum, and the container (1) is filled with washing water, and the porous treatment tank (6) containing the object (18) is rotated in the same manner. 18) Contact washing water uniformly. After the water washing step, the liquid distribution pipe (28B) is similarly removed from the container (1).
The washing water is collected in the washing water tank C, and the washing water is shaken off by rotating the porous treatment tank (6). As mentioned above
Since the aqueous cleaning treatment liquid adhering to the object to be treated (18) is minimized, contamination of the aqueous cleaning treatment liquid with the cleaning water is minimized, and the cleaning water in the cleaning water tank C is reduced. Water can be used repeatedly, and the degree of renewal of washing water is greatly reduced.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to an embodiment shown in FIGS. 1 to 3. A is a cleaning apparatus, B is a cleaning liquid tank, C is a cleaning water tank, and D is a new type. Washing
A water injection apparatus, E is a hot air drying apparatus. In the cleaning apparatus A, (1) is a container supported from the base (11) via the legs (12) and the spring (13), and a lid (30) is provided with a hinge (31) on the upper part of the container (1). The lid (30) is provided with a hot-air sending hole (32), and a container (1) is provided around the outer periphery of the container (1).
(1) liquid distribution pipe liquid distribution tank (9) the electric valve MV ₁ represents a bottom portion provided is interposed in communication with the internal and contact holes (10) (28A),
Liquid distribution pipe motor-operated valve MV ₂ is interposed (28B), the discharge pipe motor-operated valve MV ₄ mediated (29), liquid distribution pipe (28A) for cleaning liquid tank B, liquid distribution pipe (28B) is washing water Contact each tank C.
Heaters (33, 34) are inserted into the cleaning liquid tank B and the cleaning water tank C.

A rotating bearing (2) extends from the center of the bottom of the container (1).
The rotating shaft (3), which is supported by the bearing (4) and sealed by the mechanical seal (5), penetrates through the rotating bearing (2) and penetrates into the upper end of the rotating shaft (3). Is a basket
The turntable (8) on which (7) is mounted and on which the porous processing tank (6) having a large number of pores (23) is replaceably mounted is fixed.
Pulley to the lower end of the rotary shaft (3) is (16, 17) is clothed fit, pulleys (16, 17) is a belt (16A, 17A) low-speed motor M ₁ via a high-speed motor M ₂ pulleys (14,1
5) Contact. In order to switch the rotation of the perforation processing tank (6) between two stages of low speed and high speed, two low speed and high speed motors M ₁ and M ₂ are provided as in this embodiment, and an inverter is provided by one drive source. A well-known switching method such as switching by the above method is applied. From the cleaning liquid tank B and the cleaning water tank C, liquid distribution pipes (24, 25) with pumps P ₁ and P ₂ interposed are respectively connected to communicate with the liquid distribution tank (9). A pair of level gauges L ₁ and L ₂ are arranged in the liquid distribution tank (9). The new washing water injection device D is placed just above the perforated treatment tank (6) in the container (1),
(20) is provided with a number of nozzle tubes (21), and the nozzle tubes (2
1) will contact the new cleaning water supply pipe electric valve MV ₃ mediated (22). The hot-air drying device E is disposed above the container (1) of the cleaning device A, is provided with an ejection pipe (26A) at the tip, and has a heating wire (2) inside.
6B) and a tubular body (26) with a blower (27) attached to the rear, and the hot wire (26B) and the blower (27) are controlled by the actuator H. The following steps are performed to perform a cleaning process by the above-described cleaning system.

[Cleaning Step] The electric valves MV ₁ and MV _{2 of the two} liquid distribution pipes (28A and 28B) and
Liquid distribution pipe aqueous cleaning liquid by actuating the pump P ₁ was dissolved detergent or degreasing agent with closed electric valve MV ₄ of the discharge pipe (29) from the cleaning liquid tank B (24) and Haieki The container (1) is filled through the tank (9). The aqueous cleaning solution is usually heated to about 60 to 80 ° C. by a heater (33). The aqueous cleaning solution is applied to the object (1) in the porous treatment tank (6).
8) is not supply until completely immersed, the liquid level at that time is detected by the level gauge L _1, cut off the supply of the aqueous cleaning liquid pump P ₁ is stopped by a signal from the level gauge L _1. About 3-5 seconds Sonomaゝseveral minutes porous treatment tank to drive the low-speed motor M ₁ After maintaining (6) the object to be processed and to forward and reverse alternately rotated at a low speed (18) is completely cleaned Therefore, the rotation of the perforated processing tank (6) is stopped. Then distribution
Recovering the aqueous cleaning solution by opening the electric valve MV ₁ vessel (1) of the liquid pipe (28A) from liquid distribution pipe (28A) to the cleaning liquid tank B. Continued for about high speed for 2-3 minutes from the aqueous cleaning solution in the container (1) is throat discharged N殆by driving the high-speed motor M _2, vibration of the aqueous cleaning liquid attached to the object to be processed Cut. The above is the cleaning process.

[0011] [washing process] closed electric valve MV ₁ of liquid distribution pipe (28A), distribution tank through the liquid distribution pipe washing water of the washing water tank C by the pump _{P 2 (25) (9)} , further filled in a container (1), the liquid level of the washing water is adjusted by the level gauge L ₂ in conjunction with a pump P _2. The washing water is usually heated to about 60 to 80 ° C. by the heater (34), similarly to the aqueous washing treatment liquid. Container (1)
Wash water predetermined liquid level of the inner, i.e. the object to be processed (18) is a pump P ₂ is stopped when reaching the fully immersed, low-speed motor M
₁ drives. Driving of the motor M ₁ is, for example, 1 minute drive (forward rotation), 5 second pause, 1 minute drive (reverse rotation), from 1 cycles of 5 seconds stop repeated more than once. Of course, it may be intermittent rotation with only forward rotation or continuous rotation. Then, while maintaining the low-speed rotation by a motor M ₁
Liquid distribution pipe from the vessel by opening the electric valve MV ₂ of liquid distribution pipe (28B) (1) wash water through the (28B) recovering the washing water tank C.
The rotation is continued for about 1 minute after almost all of the washing water in the container (1) is discharged, and the washing water attached to the object (18) is shaken off. The above is the washing step. If there is a high possibility that the cleaning solution adhering to the cleaning water tank C is mixed into the cleaning water tank C due to the shape of the object to be processed, the power of the new cleaning water supply pipe (22) is turned on before the water cleaning step. a valve MV _3, porous treatment tank opens the MV ₄ of the discharge pipe (29)
(6) While maintaining the low speed rotation, pre- washing is performed by injecting new washing water from the new washing water spraying device D for about 30 seconds , and washing waste water is discharged from the discharge pipe (29) to the outside of the system. The contamination of the washing water in the tank C is improved.

[Drying Step] Next, high-speed rotation is performed by the high-speed motor M ₂ to complete dehydration, and at the same time, the hot air passage (3
The actuating device H is operated via 2), and hot air is blown from the hot air dryer E onto the object 18 for 3 to 5 minutes to complete drying. In the case of this 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 processed (18) is dried very quickly. The above is the drying step. In this case, liquid distribution pipe (28A, 28B) opens the electric valve MV _1, MV ₂ of an aqueous cleaning liquid surface of the cleaning liquid tank B hot air through the container (1), washing of the washing water tank C The heated aqueous cleaning solution and the cleaning water are sprayed on the water surface to keep the temperature of the cleaning water warm.

Since the cleaning process of the object to be processed is completed by the three steps described above, the porous processing tank (6) is
Work is completed by removing from (8) and removing from container (1). The above steps can be sequenced, thus eliminating the need for any manpower.

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

[0015]

According to the present invention , since it is not necessary to move the object to be processed from the processing apparatus to the processing apparatus, the apparatus and manpower required for moving the object to be processed are omitted, and the object to be processed in the porous processing tank is eliminated. since the object rotates with the porous treatment tank while being immersed in the cleaning liquid or cleaning water,該被treated is constrained by the centrifugal force, and collide with each other, without mutual damage, and to detail of the object Washing and rinsing can be carried out quickly, processing efficiency can be improved, and the washing process can be performed uniformly. In addition, the cleaning solution or the cleaning water that adheres to or penetrates the object to be processed is also centrifugally dehydrated, so that the remaining amount is reduced and hot-air drying is facilitated. For this reason, in the present invention, the degreasing and drying with an organic solvent typified by Freon and trichloroethane, which have been conventionally heavily used, can be easily performed by an aqueous cleaning agent. In addition, the recovery rate of the cleaning solution and the cleaning water is improved, the mixing of the cleaning solution with the cleaning water is reduced, the amount of the cleaning water during cleaning is extremely small, and the frequency of cleaning water renewal is large. The amount of wastewater from washing is reduced, the treatment is simple and easy, and the treatment cost is reduced.
In the present invention, an aqueous cleaning treatment along with protection measures for the ozone layer in the atmosphere has been practically used for the first time.

[Brief description of the drawings]

 1 to 3 show one embodiment of the present invention.

FIG. 1 is a front sectional view

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

FIG. 3 is a perspective view of a perforated 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 apparatus B cleaning solution tank C washing water tank D new wash water injector E hot air dryers H hot air dryer of the actuating device

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-172579 (JP, A) Japanese Utility Model Showa 55-132163 (JP, U) Japanese Utility Model Showa 56-54991 (JP, U) Japanese Utility Model Showa 62- 106964 (JP, U) Japanese Patent Publication No. 1-52480 (JP, B2) Jiko 59-8769 (JP, Y2)

Claims (2)

(57) [Claims] 1. A container, a rotating table mounted in the container, a perforated processing tank mounted on the rotating table, a liquid distribution tank communicating with the container, and contents in the perforated processing tank. Spray new washing water
A new washing water injection device for spraying, a hot air drying device for drying the contents in the perforated treatment tank, a washing treatment liquid tank filled with an aqueous washing treatment liquid, and a washing water tank filled with washing water. The rotating table has a rotating shaft in the vertical direction, and is rotated at high speed and low speed in both the forward and reverse directions by the driving device M, and the washing processing liquid tank and the washing water tank are interposed by pumps P ₁ and P ₂ . Each on the liquid distribution tank by the liquid distribution pipe
To the two pipes that are connected to the
Therefore forced contact each Haieki tank bottom, liquid distribution tank is brought arranged level gauge L _1, L ₂ is, washing treatment, characterized in that the discharge pipe the valve is interposed is issued difference from the container apparatus 2. A container, a turntable mounted in the container, a perforated treatment tank mounted on the turntable, a liquid distribution tank communicating with the container, and contents in the perforated treatment tank. Spray new washing water
A new washing water injection device for spraying, a hot air drying device for drying the contents in the perforated treatment tank, a washing treatment liquid tank filled with an aqueous washing treatment liquid, and a washing water tank filled with washing water. The rotating table has a rotating shaft in the vertical direction, and is rotated at high speed and low speed in both the forward and reverse directions by the driving device M, and the washing processing liquid tank and the washing water tank are interposed by pumps P ₁ and P ₂ . Each on the liquid distribution tank by the liquid distribution pipe
Section , and also communicates with the lower part of the liquid distribution tank by two liquid distribution pipes with electric valves MV ₁ and MV ₂ interposed. Level gauges L ₁ and L ₂ are arranged in the liquid distribution tank. , actuator H is attached to the hot-air drying apparatus, 該新cleaning water injection
Device is disposed immediately above the porous treatment tank and該新cleaning water injection
Morphism device electric valve MV ₃ contact the new cleaning water supply tube interposed, in the cleaning apparatus the electric valve MV ₄ is discharge pipe intervening is Sashidesa from the container, housing the object to be processed porous treatment tank Then, the porous treatment tank is placed on a turntable, and two liquid
Electric valve tube MV _1, MV ₂ and the electric valve of the discharge pipe MV ₄
The operating pump P ₁ in the closed state is filled in the container the aqueous cleaning liquid through the liquid distribution tank, pump P ₁ in the liquid level L ₁ in which the processing of the porous treatment tank is completely immersed the stop, accordingly later allowed stop porous treatment tank by the driving device M ₁ after the forward and reverse alternating rotation at a predetermined time slow, then one of the liquid distribution
Cleaning process of the aqueous cleaning liquid in the cleaning solution tank by opening the electric valve MV ₁ tube recovered using merge shake off, then one of the
Close the electric valve MV ₁ of the liquid distribution pipe and the electric valve M of the new washing water supply pipe.
V _3, and washing waste liquid performs to preclean injecting the porous treatment tank opens the electric valve MV ₄ One by low speedゝnew washing water from the new washing water ejecting apparatus of the drain pipe is discharged from the discharge pipe to the outside of the system was closed electric valve MV ₁ of liquid distribution pipes orゝfurther new cleaning water supply
Close the electric valve MV ₃ of the supply pipe and the electric valve MV ₄ of the drain pipe.
Flip, and filled in a container of wash water by operating the pump P ₂ via the liquid distribution tank, the treated product of a porous treatment tank is a pump P ₂ is stopped at a liquid level L ₂ completely immersed, accordingly later after the porous treatment tank brought intermittently or continuously rotated at a low speed by a driving device M _1, the washing water collected using merge shaking off water washing step to the wash water tank from the container by opening the electric valve MV _2, drive the porous treatment tank the M ₂ of a hot air drying device while rotated at a high speed
A cleaning process comprising: a drying step of operating the operating device H to send hot air into the container to shake off, dewater, and dry the remaining cleaning water.