JPH1157638A - Device and method for washing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance washing efficiency by adding a rinsing process and also vertically rocking material to be washed while being washed and dried. SOLUTION: Spray nozzles 34, through which rinsing liquid is injected for materials to be washed in a drying chamber 31, are equipped. A cooler 43 and a heater 44 are equipped in an air circulating duct 41. In the cooler 43, air flowing through the air circulating duct 41 is cooled and vaporized gas of washing liquid is condensed and recovered. The heater 44 heats air in which vaporized gas of washing liquid has been removed by the cooler 43. A shielding plate abuts on an opening peripheral edge of the lower part of the drying chamber 31 in such a state that a washing bed plate 51 is lifted by a moving mechanism 50 and arranged in the drying chamber 31. Thereby, the shielding plate closes an opening 31b and is equipped on the washing bed plate 51. Also, the washing bed plate 51 is constituted so as to be locked in the vertical direction in the inside of a washing tank 22 and in the inside of the drying chamber 31.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to, for example, mechanical parts,
The present invention relates to a cleaning apparatus and a cleaning method for cleaning an object to be cleaned such as an electronic component or a medical tool using a solvent.

[0002]

2. Description of the Related Art A conventional cleaning apparatus for cleaning an object to be cleaned such as a mechanical part, an electronic part, and a medical tool with a solvent (Japanese Patent Publication No. 5-49).
357) will be described with reference to FIGS. 5 and 6. FIG. FIG. 5 is a cross-sectional view schematically showing a cleaning operation state of a conventional cleaning apparatus, and FIG. 6 is a cross-sectional view schematically showing an operation state of solvent removal of an object to be cleaned in the conventional cleaning apparatus.

As shown in FIGS. 5 and 6, a washing table 1 on which an object 2 to be washed is mounted is connected to an appropriate moving mechanism 3 including an air cylinder, an oil cylinder, a chain device and the like. , Are provided so as to be movable in the vertical direction. The cleaning table 1 can reciprocate the object 2 to be cleaned placed on the upper surface between the cleaning tank 4 and the processing chamber 5 provided above the cleaning tank 4 by operating the moving mechanism 3. In addition, the pair of shields 6 and 6 attached to the lower surface allows the cleaning tank 4 and the processing chamber 5 to be opened and closed.

[0004] A pair of flat shields 6, 6 are supported on the lower surface of the washing table 1 on both sides thereof by support shafts 8, 8 so as to be openable and closable. The engaging portion 10 is also formed to protrude outward. As shown in FIG. 6, when the object 2 is stored in the processing chamber 5 in accordance with the movement of the cleaning table 1, the engaging portion 10
Abuts on the outer periphery of the communication port 11 (at the lower end of the engagement frame 17) between them, the respective shields 6 rotate around the support shaft 8 as a fulcrum, thereby shielding (sealing) the communication port 11. Thereby, the space between the processing chamber 5 and the cleaning tank 4 is shielded.

A lid 12 having no special fixing means is disposed above a communication port 11 (the processing chamber 5 side) for communicating the cleaning tank 4 with the processing chamber 5. When the (washing table 1) is located in the washing tank 4, the communication port 11 is closed by the lid 12 as shown in FIG. 5, while when the washing table 1 is raised, as shown in FIG. The lid 12 is lifted by a plurality of support rods 13 protruding from the upper surface of the cover 1, and the communication port is opened.

Further, a processing mechanism 15 for removing the solvent 14 attached to the object 2 to be cleaned is connected to the processing chamber 5 via a circulation path 16 through which gas can circulate. The processing mechanism 15 has an activated carbon capable of adsorbing the solvent 14. Using the cleaning device configured as described above, liquid cleaning or steam cleaning of the object 2 to be cleaned such as a mechanical part is performed as follows.

First, the moving mechanism 3 is operated, and the object 2 to be cleaned is moved.
Is placed in the washing tank 4 to perform liquid washing or steam washing (or washing of both). FIGS. 5 and 6 show a state in which the solvent 14 is held in the cleaning tank 4 and liquid cleaning with the solvent 14 is performed on the object 2 to be cleaned. After the completion of the liquid washing or the steam washing, the moving mechanism 3 is operated to raise the washing stand 1.

The object to be cleaned 2 placed on the cleaning table 1 is housed in a processing chamber 5 provided above the cleaning tank 4, and the space between the cleaning tank 4 and the processing chamber 5 is shielded by a shield 6. Shield. The shielding operation by the shield 6 is performed by connecting the engaging portion 10 projecting downward from the side of the shield 6 with the rising of the washing stand 1 to the communication port 1.
This is performed by abutting an engagement frame 17 protruding from the outer periphery of the first cleaning tank 4 side and rotating the shield 6 about the support shaft 8 as a fulcrum.

The solvent adhering to the object to be cleaned 2 is vaporized in the processing chamber 5, and the gas in the processing chamber 5 containing the solvent gas is circulated to the processing mechanism 15 through the circulation path 16. become. As a result, the solvent gas in the processing chamber 5 is repeatedly and continuously processed by the processing mechanism 15, and is adsorbed and separated every time the activated gas passes through the activated carbon in the processing mechanism 15.
It is not released to the outside air. In this way, the organic solvent and the like adhering to the object to be cleaned 2 are reliably removed, and after the removal processing, the object to be cleaned 2 is taken out of the processing chamber 5.

[0010]

In the above-described conventional cleaning apparatus, the object to be cleaned 2 is first lowered into the cleaning tank 4, immersed in a cleaning liquid or cleaning steam, and then cleaned, and then raised to the processing chamber 5. The object 2 to be cleaned is dried in the processing chamber 5, and the solvent gas radiated from the object 2 during the drying is adsorbed by the activated carbon in the processing mechanism 15 and collected. Depending on the two types (for example, when a thing having a complicated shape such as a mechanical part is to be cleaned 2),
It is desired that the cleaning efficiency can be further improved while the object to be cleaned 2 is reliably cleaned.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and aims at improving the cleaning efficiency by adding a rinsing step and allowing the object to be cleaned to be swung up and down during washing and drying. , A cleaning apparatus and a cleaning method.

[0012]

In order to achieve the above object, a cleaning apparatus of the present invention (Claim 1) includes a cleaning tank for holding a cleaning liquid and performing immersion cleaning of an object to be cleaned, and an upper part of the cleaning tank. , An air circulation duct for circulating the air in the drying chamber, a cleaning table on which the object to be cleaned is placed, and a moving mechanism for moving the cleaning table between the cleaning tank and the drying chamber. And a spray nozzle for injecting a rinsing liquid to the object to be cleaned in the drying chamber,
The air circulation duct includes a cooler for cooling the air flowing through the air circulation duct to condense and recover the vaporized gas of the cleaning liquid and a heater for heating the air from which the vaporized gas of the cleaning liquid has been removed by the cooler. The washing table is provided with a shielding plate that closes the opening by abutting the opening rim at the lower portion of the drying chamber in a state where the washing table is moved up by the moving mechanism and placed in the drying chamber. Is configured to be swingable up and down.

At this time, by periodically moving the lifting / lowering motor, which forms a moving mechanism and drives the cleaning table up and down, in forward and reverse directions, the cleaning table in the cleaning tank or the drying chamber is vertically swung at a low speed and with a large stroke. A first swinging mechanism is provided, and the lifting motor is rotatably supported around the output shaft in a state where the output shaft of the lifting motor is directly connected to the lifting sprocket shaft of the washing stand, and is fixed to the frame side of the moving mechanism. A high-speed oscillating motor, a crank fixed to the output shaft of the high-speed oscillating motor, a high-speed oscillating arm fixed to the case of the elevating motor, and both ends of these cranks and the high-speed oscillating arm, respectively. It has a connecting rod that supports the crank and the high-speed oscillating arm, and rotates the high-speed oscillating motor to rotate the cleaning table in the cleaning tank or the drying chamber at a high speed and a small speed. The swinging in the vertical direction by Rourke 2
A swing mechanism may be provided (claim 2).

Further, the cleaning method of the present invention (claim 3)
A cleaning method in which an object to be cleaned is immersed in a cleaning solution in the cleaning tank to perform immersion cleaning of the object to be cleaned, and the object to be cleaned after immersion cleaning is dried in a drying chamber above the cleaning tank. Perform immersion cleaning of the cleaning object, rinse the object to be cleaned with the spray nozzle in the drying chamber, and then dry the object to be cleaned in the drying chamber. In addition, the vertical swing with a large stroke and the vertical swing with a high speed and a small stroke act simultaneously or separately.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show a cleaning apparatus according to an embodiment of the present invention. FIG. 1 is a side sectional view showing a schematic configuration thereof, and FIG. 2 (a) is an enlarged view of a main part (near a lower part of a drying chamber). FIG. 2B is a cross-sectional view of FIG.
FIG. 3 is a cross-sectional view showing an enlarged portion IIb, FIG. 3 is a plan view showing a main part thereof partially cut away, and FIG. 4 is a perspective view showing the main part (a first swing mechanism and a second swing mechanism). is there.

As shown in FIG. 1, the cleaning apparatus of this embodiment is roughly divided into a cleaning tank section 20 placed on the floor, a drying chamber section 30 provided on the cleaning tank section 20, An air circulation duct 40 for circulating the air in the drying chamber 31;
It comprises a moving mechanism section 50 for moving an object to be cleaned (not shown) such as a mechanical part between the drying chamber section 30 and the cleaning tank section 20.

Here, in the cleaning tank section 20, the object to be cleaned is immersed and cleaned with a cleaning liquid (eg, a solvent such as glycol ether), and in the drying chamber section 30, rinsing and air circulation are performed by a spray nozzle 34 described later. Drying by hot air from the duct portion 40 is performed, and the air circulation duct portion 4 is dried.
At 0, generation of hot air and recovery of the cleaning liquid (solvent gas) are performed, and the moving mechanism unit 50 moves / oscillates the cleaning table 51 in the vertical direction.

Hereinafter, more detailed configurations of the cleaning tank section 20, the drying chamber section 30, the air circulation duct section 40, and the moving mechanism section 50 will be described with reference to FIGS. As shown in FIG. 1, the cleaning tank unit 20 includes a base 21 installed on the floor, and a cleaning tank 2 fixed on the base 21.
2 and a stirrer 23, a strainer 24, a liquid level meter 25, a steam heater 26, a heat exchanger 27, and the like.

The cleaning tank 22 has an overflow weir 22b for partitioning a part thereof to form an overflow tank 22c, in addition to a main tank 22a for holding a cleaning liquid for immersion cleaning of an object to be cleaned. . And the main tank 2
The cleaning liquid from 2a over the overflow weir 22b flows into the overflow tank 22c, and the circulation strainer 73, the automatic three-way valve 74, the circulation pump 75, and the bag filter 76
, A cleaning liquid circulation system is formed so as to return to the main tank 22a.

A strainer 24 and a liquid level gauge (float) 25 are provided in an overflow tank 22c surrounded by an overflow weir 22b.
A stirrer 23 is provided for stirring the cleaning liquid therein. The stirrer 23 includes a pair of upper and lower propellers 23a,
And a drive motor 23b for rotating the propeller 23a.

The steam heater (jacket) 26 is fixed to the bottom of the main tank 22a and is for heating the cleaning liquid in the main tank 22a. Is supplied. The heat exchanger 27 is a ninety-nine-fold pipe provided along a side wall in the main tank 22a.
a and the rinsing pump 71 is connected to the rinsing tank 71 via the rinsing pump 72, and the rinsing liquid contained in the rinsing tank 71 is sent to the heat exchanger 27 through the pipe 27a with the operation of the rinsing pump 72, and this heat exchange is performed. After being heated by exchanging heat with the cleaning liquid in the main tank 22a in the vessel 27, it is jetted from a spray nozzle 34 described later.

The drying chamber section 30 has a drying chamber 31 provided above the cleaning tank 22, and also includes a lifting shutter 32, a pusher 33, a spray nozzle 34, and the like. The drying chamber 31 is defined and surrounded by a front wall (right side in FIG. 1), a bottom wall, an upper wall 31e, a rear wall (left side in FIG. 1), and side walls. On the front wall of the drying room 31, there is a drying room 3
An opening 31a for communicating and connecting the drying chamber 31 with the outside is formed, and an opening 31b for communicating and connecting the drying chamber 31 and the cleaning tank 22 is formed on the bottom wall of the drying chamber 31. The opening 31c for sending out the air in the drying chamber 31 to the upper part (the upper air circulation duct 41 (described later)) is formed, and the rear wall of the drying chamber 31 has an air circulation duct 4 described later.
An opening 31 d is formed to connect the duct 41 and the drying chamber 31 so that the hot air from 1 flows into the drying chamber 31.

The elevating shutter 32 opens and closes an opening 31a in the front wall of the drying chamber 31. A shutter main body 32a capable of covering the opening 31a and an opening 31a are driven by driving the shutter main body 32a up and down. And a drive cylinder 32b that opens and closes. Pusher 33
Is used to push a cage 80 placed on a washing table 51 to be described later and containing an object to be washed out of the apparatus through the opening 31a, and an arm 33 that can abut the cage 80.
a, a guide rail 33b for guiding the arm 33a in the direction in which the cage 80 is pushed out (rightward in FIG. 1), a chain 33c to which the arm 33a is connected, and a pair of sprockets around which the chain 33c is wound and driven. 33d.

Accordingly, by rotating one sprocket 33d by a drive motor (not shown), the arm 33a is connected to the guide rail 33b via the chain 33c.
Along the front and rear (left and right in FIG. 1), and
If the cage 80 is placed on the washing table 51 when moving to the right side of the
Is pushed out of the device from the opening 31a.

The spray nozzle 34 is installed above the drying chamber 31 and injects a rinsing liquid to an object to be cleaned placed in the drying chamber 31. As described above, the rinsing pump 71 The rinsing liquid sent out by 72 and heated by the heat exchanger 27 is jetted from the spray nozzle 34. The air circulation duct 40 is
An air circulation duct 41 that returns the air sent from the opening 31c of the upper wall 31e of the drying chamber 31 to the opening 31d of the rear wall.
And a fan 42, a water cooler 43, and a steam heater 44. The fan 42, the water cooler 43, and the steam heater 44 are provided in this order in the air circulation duct 41.

Here, the fan 42 is connected to the air circulation duct 4
1 for circulating the air in the drying chamber 31. The water cooler (cooler) 43 includes the air circulation duct 4
The cooling water is cooled by condensing and recovering the vaporized gas of the cleaning liquid contained in the air by cooling the air flowing through the air. Is supplied.

The steam heater 44 reheats the air from which the vaporized gas of the cleaning liquid has been removed by the water cooler 43. The steam heater 44 is supplied with steam from a steam source (not shown) through a steam pipe 44a. It is supposed to be. Therefore, while the air in the drying chamber 31 flows through the air circulation duct 41, the vaporized gas of the cleaning liquid is supplied to the water cooler 4.
After being recovered in 3, it is configured to be heated by the steam heater 44 and then return to the drying chamber 31 from the opening 31 d again.

The moving mechanism 50 includes a cleaning table 51 on which the object to be cleaned is placed in a cage 80, four hanger rods 52, and a pair of front and rear guide rollers 53.
And two hanger plates 54, 54, a frame 55 fixed on the upper part of the drying chamber 31, and a pair of left and right linear rails 5 fixed on the frame 55.
6, 56, two front and rear endless chains 57, 57,
A pair of upper and lower sprockets 58, 58 around which each chain 57 is wound, and two upper and lower sprockets 58, 58
In addition to the gears 59, 59 coaxially connected to the sprockets 58, 58 and meshing with each other to rotate the sprockets 58 in opposite directions, the lifting motor 60, the high-speed rocking arm 61, the high-speed rocking arm 62, It has a bar 63 and a position sensor 64 (64a, 64b).

FIG. 2A and FIG.
As shown in (b), a free roller conveyor 51a serving as a main body, an inclined bottom plate 51b, and a washing table 51 are provided.
In the drying chamber 31 in a state where
The lower opening 31b is formed of a shielding plate (cover) 51c which abuts on the sealing member 41a on the periphery of the opening 31b and closes the opening 31b, and is connected to and supported by four hanger rods 52.

As shown in FIG. 1, the upper part of each hanger rod 52 passes through a hole (not shown) provided in the upper wall 31e of the drying chamber 31. And four hanger rods 5
As shown in FIG. 3, each pair of the front and rear two pairs is paired, and the upper end of each pair is hung with the front and rear two hanger plates 54, 54 via pins 85, respectively. Front (right side in FIG. 3) two hanger rods 52
The lower part of one of them (the lower right hanger rod 52 in FIG. 3) is sandwiched between a pair of front and rear guide rollers 53, 53 pivotally supported on the side wall frame side of the drying chamber 31, so that horizontal deflection is restricted. ing.

The two front and rear hanger plates 54, 54
Are a pair of left and right linear guides 54a, 54a, respectively.
Are engaged with a pair of left and right linear rails 56, 56 fixed to the frame 55, and are slidable vertically along these linear rails 56, 56. Further, the arm portion 5 integrated with the hanger plate 54 is provided.
4 b is connected to a chain 57, and the washing table 51 is moved up and down via a hanger plate 54 and a hanger rod 52 as the chain 57 travels up and down. The portion where the hanger rod 52 penetrates the upper wall 31e of the drying chamber 31 is slidably sealed by packing such as rubber.

The elevating motor 60 is configured as a geared motor with a brake, and as shown in FIG. 4, its output shaft is connected to a sprocket 58 on the front side (right side in FIG.
9 and is rotatably supported around its output shaft in a state of being directly connected to a common shaft (sprocket shaft for raising and lowering). By operating the lifting / lowering motor 60 in the forward / reverse direction, a pair of front and rear gears 59, 59 and two sets of front and rear sprockets 5 are provided.
The front and rear two chains 57, 57 travel in the up and down direction via the rails 8, 58, so that the washing table 51 is driven up and down via the hanger plate 54 and the hanger rod 52.

In this embodiment, the lifting motor (first motor)
By periodically rotating the swing mechanism 60 forward and backward, the washing table 51 in the washing tank 22 or the drying chamber 31 swings vertically at a low speed and with a large stroke. Such swinging is hereinafter referred to as swinging at a low speed and a large stroke. Further, in the present embodiment, as shown in FIG. 4, a high-speed rocking motor 62 is fixedly provided on the frame side of the moving mechanism section 50, and a crank 62a is fixedly provided on an output shaft of the high-speed rocking motor 62. In addition, a high-speed swing arm 61 is fixed to the case of the elevating motor 60, and a connecting rod 63 for connecting the crank 62a and the high-speed swing arm 61 is provided.
Are provided with both ends pivotally supported by a crank 62a and a high-speed swing arm 61, respectively.

With such a configuration, the high-speed oscillating motor 6
By rotating the cleaning table 2, the cleaning table 51 in the cleaning tank 22 or the drying chamber 31 swings up and down with a high speed and a small stroke. Such a swing is hereinafter referred to as a high-speed small-stroke swing. The high-speed arm 61, the high-speed oscillating motor 62, the crank 62a, and the connecting rod 63 constitute a second oscillating mechanism.

The reaction force against the output torque of the lifting motor 60 is controlled by a high-speed swing arm 61 fixed to the motor case.
To be given to the tip. The high-speed oscillating motor 62 is also configured as a geared motor with a brake, and the crank 62 a fixed to the output shaft thereof is connected to the connecting rod 6.
3 and is connected to the tip of a high-speed swing arm 61 of a lifting motor 60. Therefore, the reaction force to the output of the elevating motor 60 is always transmitted to the main body frame through the case of the high-speed oscillating motor 62.

A plurality of position sensors (dogs) 64 (6
4a, 64b) are fixed vertically in the frame 55, and these position sensors 64 (64a, 64b) are provided.
b) detects the detector 86 (see FIG. 3) fixed to the rear hanger plate 54, and
(Height) is detected. next,
An operation of the cleaning apparatus as one embodiment of the present invention configured as described above, that is, a cleaning method (cleaning procedure) performed using the cleaning apparatus of the present embodiment will be described.

Cage 8 containing objects to be cleaned such as machine parts
Reference numeral 0 denotes a conveyor which is not shown in the figure, is fed in front of the opening 31a of the drying chamber 31 and stops there. The lifting shutter 32 is opened, and is pushed into the drying chamber 31 by a pusher (not shown). It is placed on the conveyor 51a and the lifting shutter 32 is closed. Next, the washing table 51 is moved to the predetermined lower end position by the elevating motor 60 (that is, the detecting body 86 fixed to the hanger plate 54).
(Until the position sensor 64 is detected by the position sensor 64), and the cage 80 is immersed in the cleaning liquid in the main tank 22a to perform immersion cleaning of the object to be cleaned. The cleaning liquid in the main tank 22a passes through a circulation strainer 73, an automatic three-way valve 74, a circulation pump 75, and a bag filter 76.
The cleaning liquid circulates back to a and circulates through the overflow tank 22.
The washing liquid in c is stirred by the stirrer 23 and is convected.

In this embodiment, during the above-described immersion cleaning, the forward / reverse rotation operation of the lifting / lowering motor 60 is periodically repeated, so that the lower end position and the position sensor 6 at the lower end position are detected.
Position sensor 64 that is above the oscillating stroke by 4
The washing table 51 is swung up and down at a low speed and a large stroke at the same speed as the elevating speed between the position a (see FIG. 1).

Depending on the type of the object to be cleaned (for example, an assembly of small parts), the high-speed rocking motor 62 is rotated to rotate through the crank 62 a, the connecting rod 63 and the high-speed rocking arm 62. The motor 60 itself may be oscillated, and the washing table 51 may be oscillated vertically at a high speed (for example, about 30 Hz) and a small stroke (for example, 5 mm).

The swinging of the low-speed large stroke and the swinging of the high-speed small stroke can be selected to either simultaneously act on the washing table 51 in a superimposed manner or to act separately. In any case, the reaction force to the output of the elevating motor 60 during the low-speed large-stroke swing is:
The frame is received by the main frame through the case of the high-speed oscillating arm 61, the connecting rod 63, the crank 62a, and the high-speed oscillating motor 62. When only high-speed small-stroke oscillating is applied, the lifting / lowering motor 60 is braked.

After the completion of the immersion cleaning, the stirrer 23 is stopped, the cleaning liquid is supplied to the main tank 22a to increase the liquid level, and the dirt floating on the upper part of the cleaning liquid is removed from the overflow tank 22.
Overflow to c and remove. The detection result by the liquid level meter 25 is used for control at the time of overflow. Next, the washing table 51 is moved by the elevating motor 60 to the drying chamber 3.
1 [that is, the detection body 86 is located at the position sensor 64b.
(Refer to FIG. 1).
The rinsing liquid sent from the rinsing tank 71 by the pump 72 and heated by the heat exchanger 27 is sprayed from the spray nozzle 34 to perform the rinsing step.

In this rinsing position, there is a gap between the shielding plate 51c below the washing table 51 and the bottom wall of the drying chamber 31 as shown in FIG.
As shown in (a) and FIG. 2 (b), a gap is left, and the cleaning liquid used for rinsing is returned to the main tank 22a from this gap. The lower portion of the washing table 51 is a sloped bottom plate 51b so that the washing liquid easily flows down (the washing tank 22).

When the rinsing step and the draining step for a time set in advance by the timer are completed, the washing table 51 is further raised to the drying position by the elevating motor 60, and the edge of the shielding plate 51c of the washing table 51 is opened. The space between the drying chamber 31 and the cleaning tank 22 is shielded by contact with the seal member 41a of the part 31b, and that position is set as a drying position. When draining,
If the low-speed large-stroke swing or the high-speed small-stroke swing described in the washing step is performed, the drainage effect can be improved.

After the draining step, the steam heater 44 and the water cooler 43 are operated, and the fan 42 is rotated so that the air containing the cleaning liquid (solvent gas) in the drying chamber 31 flows through the air circulation duct 41. , Fan 42, water cooler 4
3, circulate through the steam heater 44 in this order. In the water cooler 43, the solvent gas is condensed and recovered, and the steam heater 44
Then, the air from which the solvent gas has been removed is heated again and then returned to the drying chamber 31. The drying efficiency can be further improved by swinging the washing table 51 between the position shown by the two-dot chain line and the position shown by the three-dot chain line in FIG. This is called high-speed rocking drying).

When the above-described drying step is completed, the lifting shutter 32 is opened, and the cage 80 is pushed out of the apparatus by the pusher 33 and is transferred onto an external conveyor. As described above, according to the cleaning apparatus and the cleaning method as one embodiment of the present invention, the rinsing step using the spray nozzle 34 is added, and the object to be cleaned (the cleaning table) is performed during each of the immersion cleaning, the rinsing, and the drying. The effect in each step can be enhanced by swinging 51) up and down, so that the cleaning efficiency is greatly improved.

The object to be cleaned in the cleaning solution (the cleaning table 51)
By oscillating at a high speed and a small stroke, the penetration of the cleaning liquid into the object to be cleaned is improved, and the cleaning performance in the cleaning tank 22 is greatly improved. Further, by swinging the object to be cleaned (the cleaning table 51) at a high speed and a small stroke during drying, the flow of hot air to the object to be cleaned is improved, and the drying performance is greatly improved.

Further, by oscillating the object to be cleaned (the washing table 51) with a low-speed large stroke or a high-speed small stroke during draining after rinsing, the draining effect is greatly improved.
It should be noted that the present invention is not limited to the above-described embodiment, and can be implemented with various modifications without departing from the spirit of the present invention.

[0048]

As described above, according to the cleaning apparatus and the cleaning method of the present invention, the following functions and effects can be obtained. (1) A rinsing step using a spray nozzle is added, and the effect of each step can be enhanced by swinging the object to be cleaned (washing table) in the vertical direction during each of the steps of immersion cleaning, rinsing, and drying. As a result, the cleaning efficiency is greatly improved.

(2) By oscillating the object to be cleaned (washing table) in the cleaning solution at a high speed and with a small stroke, it is possible to improve the penetration of the cleaning solution into the object to be cleaned, so that the cleaning performance is greatly improved. (3) By oscillating the object to be cleaned (washing table) at a high speed and a small stroke during drying, the flow of hot air to the object to be cleaned can be improved, so that the drying performance is greatly improved.

(4) The draining effect can be improved by swinging the object to be cleaned (washing table) with a low-speed large stroke or a high-speed small stroke during draining after rinsing.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing a schematic configuration of a cleaning device as one embodiment of the present invention.

FIG. 2A is an enlarged cross-sectional view showing a main part (near a lower part of a drying chamber) of the cleaning apparatus of the present embodiment, and FIG.
It is sectional drawing which expands and shows the b part.

FIG. 3 is a plan view showing a main part of the cleaning apparatus according to the present embodiment, partially cut away;

FIG. 4 is a perspective view showing a main part (a first swing mechanism and a second swing mechanism) of the cleaning device of the present embodiment.

FIG. 5 is a cross-sectional view schematically showing a cleaning operation state of a conventional cleaning device.

FIG. 6 is a sectional view schematically showing an operation state of removing a solvent from an object to be cleaned in a conventional cleaning apparatus.

[Explanation of symbols]

 22 Cleaning Tank 31 Drying Room 31b Opening 34 Spray Nozzle 41 Air Circulation Duct 41a Seal Member 42 Fan 43 Water Cooler (Cooler) 44 Steam Heater (Heater) 50 Moving Mechanism 51 Cleaning Table 51c Shielding Plate 52 Hanger Rod 54 Hanger Plate 54a Linear guide 54b Arm 55 Frame 56 Linear rail 57 Chain 58 Sprocket 60 Elevating motor (first swing mechanism) 61 High-speed swing arm (second swing mechanism) 62 High-speed swing motor (second swing mechanism) 62a Crank (second swing mechanism) 63 Connecting rod (second swing mechanism)

Claims (3)

[Claims] 1. A cleaning tank for holding a cleaning liquid and performing immersion cleaning of an object to be cleaned, a drying chamber provided above the cleaning tank,
An air circulation duct that circulates air in the drying chamber, a cleaning table on which the object to be cleaned is placed, and a moving mechanism that moves the cleaning table between the cleaning tank and the drying chamber. A washing nozzle for spraying a rinsing liquid onto the object to be cleaned in the drying chamber, cooling air flowing through the air circulation duct to condense and collect a vaporized gas of the cleaning liquid. A cooler and a heater for heating the air from which the vaporized gas of the cleaning liquid has been removed by the cooler are provided in the air circulation duct, and the cleaning stand is raised by the moving mechanism and disposed in the drying chamber. The washing table is provided with a shield plate that closes the opening by abutting the opening periphery of the lower portion of the drying chamber in the state, and allows the washing table to swing up and down in the washing tank and the drying chamber. A cleaning device, comprising: 2. A vertical movement of the cleaning table in the cleaning tank or the drying chamber at a low speed and a large stroke by periodically rotating a lifting / lowering motor which forms the moving mechanism and drives the cleaning table to move up and down. A first swing mechanism for swinging the washing motor, and in a state in which the output shaft of the lifting motor is directly connected to the lifting sprocket shaft of the washing stand, the lifting motor is rotatably supported around the output shaft; A high-speed oscillating motor fixed to the frame side of the moving mechanism;
A crank fixed to the output shaft of the high-speed rocking motor, a high-speed rocking arm fixed to the case of the elevating motor, and the crank pivotally supported at both ends by the crank and the high-speed rocking arm; A connecting rod for connecting the high-speed oscillating arm to the high-speed oscillating arm, and rotating the high-speed oscillating motor to vertically oscillate the cleaning table in the cleaning tank or the drying chamber with a small stroke at high speed. 2. The cleaning device according to claim 1, further comprising a second swing mechanism for causing the cleaning device to rotate. 3. A cleaning method in which an object to be cleaned is immersed in a cleaning liquid in a cleaning tank to perform immersion cleaning of the object to be cleaned, and the object to be cleaned after immersion cleaning is dried in the drying chamber above the cleaning tank. And performing immersion cleaning of the object to be cleaned in the cleaning tank, rinsing the object to be cleaned by a spray nozzle in the drying chamber, and then drying the object to be cleaned in the drying chamber. The vertical swinging at a low speed and a large stroke and the vertical swinging at a high speed and a small stroke are simultaneously or separately applied to the washing table in the washing tank or the drying chamber, Cleaning method.