JPH07275814A - Cleaning device - Google Patents

Abstract

PURPOSE:To remove mist in cleaning fluid and reuse the fluid by providing a mist catcher for removing the mist in the cleaning fluid generating in respective processes and a gutter for collecting the cleaning fluid dropping from the mist catcher and returning the same to a cleaning tank in a cleaning chamber and an air blow chamber. CONSTITUTION:A work 1 is moved by a belt conveyor 16a of a first cleaning chamber 17 and shower-washed by jetting cleaning fluid 3 pressurized by a pump 4 by means of a nozzle unit 5. Then the most part of fluid 3 for the work 1 is blown off in a first air blow chamber 18 by spraying high pressure air from an air blow unit 6, and mist and some vapor generated at that time are sucked to a mist catcher 11. The cleaning fluid condensed and dropped to a lower section is returned to a first cleaning tank 2 through a gutter 15. The work 1, to which still a very small amount of cleaning fluid 3 adheres, is cleaned similarly in a second cleaning chamber 22 and an air blow chamber 23.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a combination of a mist of a cleaning liquid generated when cleaning a contaminated cleaning part (hereinafter referred to as a work) and an exhaust device suitable for effectively treating steam. The present invention relates to a cleaning device.

[0002]

2. Description of the Related Art Conventionally, for cleaning general works, a chlorine-based solvent such as trichloroethane or freon has been mainly used.

Since the above substances have excellent solubility of contaminants, excellent permeability to the details of the work and a high cleaning function, and in addition to quick drying after cleaning, this solvent is used for all steps of cleaning, rinsing and drying with the same substance. It was an ideal product and was a representative of industrial detergents. However, the chlorine-based solvent is supposed to deteriorate the global environment by destroying the ozone layer.
It was legally regulated to abolish it in 995. As an alternative solvent, there is a water-based or hydrocarbon-based solvent, but this solvent cannot perform the above-mentioned washing, rinsing and drying with a single substance. Is carried out with a plurality of substances, mainly city water or pure water.

However, in the steam cleaning apparatus, a plurality of types of mist and steam of each cleaning liquid are generated by shower or ultrasonic vibration during cleaning, and it is necessary to effectively treat the mist and steam.

For this reason, as shown in FIGS. 4 and 5, an opening for mist suction is provided in the upper part of the cleaning chamber and the rinsing chamber, and an exhaust duct for merging and discharging the mist is provided. However, it is necessary to collect the mist and vapor from the exhaust duct to prevent environmental pollution. Conventionally, the combined mist is exhausted from the exhaust blower 10 at one place by attaching the mist catcher 11 to the exhaust blower 10. . The blower with the mist catcher 11 has been provided by one provided downstream of the exhaust blower 10 as shown in FIG. 4 and one provided around the runner 51 of the exhaust blower 10 as shown in FIG.

[0006]

However, in the above-mentioned cleaning device, the mist catcher 11 liquefies a mixed mist of a plurality of kinds of cleaning liquids. It is impossible to reuse such mixed and liquefied mist, and there is no other way than to dispose of it as waste liquid. For this reason, the processing problem due to an increase in the consumption of the washing liquid and an increase in the amount of waste liquid deteriorates the environment, which is disadvantageous. In addition, liquefied mist drops on the runner 51 of the exhaust blower 10.
Therefore, the mist dropped on the runner 51 is scattered again to form a mist, which causes a problem that the efficiency of the mist catcher 11 decreases and becomes insufficient.

[0007]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention arranges a conveying means for continuously conveying a work and a cleaning tank for each step below the conveying means and an upper cleaning for each step. In a cleaning device having a chamber, an air blow chamber adjacent to each cleaning chamber, and a shower unit for injecting a cleaning liquid toward a work in each process, in the cleaning chamber and the air blow chamber in each process. A mist catcher for removing the generated mist of the washing liquid is provided respectively, and gutters for collecting the washing liquid dropped from the mist catcher and returning it to the washing tank are arranged in the washing tank, respectively.

Further, exhaust ducts are connected to the mist catchers of the respective processes, and weirs are provided at the bottom of the exhaust ducts so as to prevent mixing of respective washing liquids.

Furthermore, the mist catcher is arranged at a position horizontally displaced from above the shower unit.

The transport means is divided into an air blow chamber and a cleaning chamber for the next process.

Furthermore, a drying furnace is arranged adjacent to the air blow chamber, and the conveying means is divided between the drying furnace and the air blow chamber.

[0012]

In the cleaning device having the above structure, the cleaning chamber and the air blow chamber are provided with mist catchers for removing the mist of the cleaning liquid generated in the respective steps, and the cleaning liquid dropped from the mist catcher is collected and the cleaning tank is installed. Since the gutters to be returned to are placed in the washing tanks respectively, the mist of the washing liquid generated in each step is attached to the mist catcher, condensed, and dropped. The dripping washing liquid of each step returns to the washing tank of each step through the trough without mixing with the washing liquid of the other steps.

Further, an exhaust duct is connected to the mist catcher of each process, and a weir for preventing mixing of respective washing liquids is provided at the bottom of the exhaust duct. Since it is divided into the chamber and the chamber, the washing liquid in each step is not mixed with the washing liquid in the other steps.

Since the drying furnace is disposed adjacent to the air blowing chamber and the conveying means is divided between the drying furnace and the air blowing chamber, the conveying means in the drying furnace is not contaminated by the washing liquid and pollutes the environment. Disappear.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the cleaning apparatus of the present invention will be described with reference to FIGS.

In the figure, 1 is a work, 2 is a first cleaning tank, 3 is a first cleaning liquid which fills the first cleaning tank 2, and is generally mixed with a detergent or uses high temperature water. Reference numeral 4 is a pressurizing pump for a shower, and cleaning tanks 2 and 2 for each process.
It is attached to 0, 30, and 40 respectively.

5 is the work 1 in each step
The shower units for injecting the washing liquids 3, 21, 31, 41 of the respective steps are communicated with the pressure pump 4 of the respective steps, and the respective washing chambers 17, 22,
They are arranged above and below the carrier device 16 in 32 and 42.

Reference numeral 6 denotes an air blow unit for injecting air toward the work 1 in each process, so that air blow chambers 18, 23, 33 adjacent to the cleaning chambers 17, 22, 32, 42 in each process are provided. They are arranged above and below the carrier device 16 in 43.

Reference numeral 7 is a cabinet forming the appearance of the cleaning device.

A curtain 8 is provided at the entrance of the cabinet 7. Reference numeral 9 is an exhaust duct for exhausting the mist of the washing liquids 3, 21, 31, 41, and the washing chambers 17, 2 in the respective steps.
It is arranged over 2, 32, and 42. An exhaust blower 10 is attached to the exhaust duct 9.

11 is a washing liquid 3 generated in each step,
Mist catchers for removing the mist of 21, 31, 41 are provided on the ceilings of the cleaning chambers 17, 22, 32, 42 and the air blow chambers 18, 23, 33, 43, respectively. The mist catcher 11 is arranged at a position horizontally shifted from above the shower unit 5 and connected to the exhaust duct 9. Reference numeral 12 is an air damper for adjusting the air volume and mist catcher 11 in each process.
Are provided in the exhaust ducts 9 downstream of, respectively. Reference numeral 13 is a weir that prevents the washing liquids 3, 21, 31, 41 from mixing in the respective steps, and is provided at the bottom of the exhaust duct 9 so as to project. Reference numeral 14 is an exhaust pipe that guides the purified air to the outside and is connected to the exhaust blower 10. 15 is a washing liquid after the shower 3, 21, 3
Cleaning tanks 2 and 2 for each process by collecting 1, 41
The gutters returned to 0, 30, and 40 are arranged above the cleaning tanks 2, 20, 30, and 40 in the respective steps.

Reference numeral 16 is a conveying means constituted by a belt 16-1 having air permeability, and is constituted by mesh belt conveyors 16a, 16b, 16c, 16d which are divided as necessary. 16a is a belt conveyor for the first process, 17 is a first cleaning chamber, 18 is a primary air blow chamber, 19 is a heater for heating the cleaning liquid, and cleaning tanks 2 and 2 for the respective processes.
It is attached to 0, 30, 40.

Reference numeral 20 is a second cleaning tank, and 21 is a second cleaning liquid which fills the second cleaning tank 20. Generally, cleaning liquid mixed with a detergent is used for precision finishing cleaning, but sufficient cleaning is performed in the first cleaning step. If it is formed, a rinse solution with water may be used.

Reference numeral 22 is a second cleaning chamber, 23 is a second air blow chamber, and the other components are the same functional components as the first cleaning chamber 17 and the first air blow chamber 18. However, the belt conveyor 16a of the first cleaning chamber 17 and the first air blow chamber 18
The belt conveyors 16b of the second cleaning chamber 22 and the second air blowing chamber 23 are connected to the first air blowing chamber 18 and the second cleaning chamber 2 respectively.
It is divided into two parts. Further, the mist catcher 11 arranged in the exhaust duct 11 above the second step is arranged above the second air blow chamber 23 so that the shower mist of the shower unit 5 in the second cleaning chamber 22 does not directly scatter and reach.

Next, FIG. 2 connected to the apparatus of FIG. 1 described above.
Will be explained.

Reference numeral 30 is a third cleaning tank, 31 is a cleaning liquid which fills the third cleaning tank 30, and generally becomes a rinse when the third cleaning step is started. The washing liquid 31 often uses water without using detergent. 32 is a third cleaning chamber, 33 is a third air blow chamber, 34 is a drain pipe, and 16c is a belt conveyor, which divides the second air blow chamber 23 and the third cleaning chamber 32.
The other structures are the second cleaning chamber 22 and the second air blow chamber 2.
Same function as 3.

Reference numeral 40 is a fourth cleaning tank, 41 is a cleaning liquid which fills the fourth cleaning tank 40, and generally uses high-purity water. 42 is a fourth cleaning chamber, and 43 is a fourth air blow chamber. Reference numeral 44 denotes a liquid supply pipe for the cleaning liquid 41, which is connected to the fourth cleaning tank 40. An overflow pipe 45 connects the fourth cleaning tank 40 to the third cleaning tank 30. Here, in the belt conveyor 16c, both the washing liquid 31 and the washing liquid 41 are rinse liquids, and when the purity is slightly different, the division between the third air blow chamber 33 and the fourth washing chamber 42 is performed in the fourth step. Since the effectiveness is low, the belt conveyor 16c may be integrated or may be divided as necessary.

Reference numeral 50 denotes a drying furnace, which is adjacent to the third air blow chamber 43 which is an air blow chamber in the final cleaning step, has a belt conveyor 16d therein, and circulates hot air. 16a
Is a belt conveyor, and the third air blow chamber 43 and the drying oven 50
Is split between and.

Next, the operation of the cleaning device having the above structure will be described.

To perform the washing operation with the above apparatus, first,
The work 1 having the attached matter is placed on the belt conveyor 16a of the first cleaning chamber 17 on the inlet side, and is transported and moved in the first cleaning chamber 17. At this time, the washing liquid 3 pressurized by the pump 4 is pressure-fed from A to A of the pressurizing pipe (not shown), and the washing liquid 3 is jetted by the nozzle unit 5 arranged inside and on the belt conveyor 16a. , Reaches the entire surface of the workpiece 1, is shower washed, and the washing liquid 3 is first passed through the gutter 15.
Return to wash tank 2.

Next, the work 1 wet with the washing liquid 3 is
The high-pressure air is blown into the air blow chamber 18 by the air blow unit 6, and most of the washing liquid 3 is blown off and a minute amount is adhered.

At the time of this cleaning and air blowing, mist and some steam are generated by the cleaning liquid 3 and the air hitting the work 1. The mist and some steam are mixed with the air flowing in through the curtin 8 by the drive of the exhaust blower 10 and the first cleaning chamber. 17
And, it is sucked by the mist catcher 11 provided in the upper part of the first air blow chamber 18, adheres to the element (not shown) of the mist catcher 11, is condensed and drops to the lower part due to the weight, and is introduced into the first cleaning tank 2 through the gutter 15. It can be reused as an effective washing liquid 3. At this time, most of the mist and steam can be collected by the mist catcher 11, but a small amount of steam flows into the exhaust duct 9 and is adsorbed on the wall surface thereof to be liquefied and collected at the lower part of the exhaust duct 9, but at the bottom of the exhaust duct 9. The weirs 13 protruding between the washing liquids 21, 31, 4 for other processes
It flows down through the oil catcher 11 without being mixed with 1, and also returns to the first washing tank 2 through the gutter 15 and can also be reused as an effective washing liquid 3.

After that, the air dried by the mist catcher 11 or the like is discharged to the outside through the exhaust pipe 14 by the exhaust blower 10.

The work 1 on which a small amount of the washing liquid 3 has adhered in the first air blow chamber 18 is conveyed by the belt conveyor 16b of the divided second washing chamber 22, is shower-washed with the washing liquid 21, and is further in the second air blowing chamber. 23 and is blown with air. The mist and vapor of the washing liquid 21 generated by this are the same as those in the previous step, and the other washing liquids 3, 3
It can be returned to the second cleaning tank 20 without being mixed with 1, 41 and reused as an effective cleaning liquid 21.

The operation of the other parts is the same as that of the previous step, and therefore its explanation is omitted. After this, the work 1 is conveyed and moved by the belt conveyor 16c from the third cleaning chamber 32 → the third air blow chamber 33 → the fourth cleaning chamber 42 → the fourth air blow chamber 43 to wash away the detergent by rinsing, and a small amount of the washing liquid 41. Complete the wash. The mist and vapor of the washing liquid 31 and the washing liquid 41 generated during this period are the same as those in the previous step.
There is no mixing with and the original washing liquid tanks 30 and 40 are returned. After this, the work 1 is conveyed to the drying furnace 50 and dried to complete a series of cleaning steps. Since the belt conveyer 16d is divided between the air blow chamber 43 and the drying oven 50, the belt conveyer 16d is not contaminated by the washing liquid 41, so that the environment is not contaminated.

[0036]

As described above, according to the present invention, even if a plurality of types of washing liquids are washed in separate steps and the mist vapors of the respective washing liquids are generated, the respective washing liquids are not mixed and the mist catcher and the weir are not mixed. It is collected in the exhaust tact that is composed of, and can be efficiently returned to the cleaning tank of the same cleaning liquid without being re-misted and reused as an effective cleaning liquid, which reduces the consumption of cleaning liquid and reduces waste liquid. The cost for disposing of waste is reduced and it is effective for the environment, and the effect is great.

Although the present invention has been described with reference to an embodiment using a four-tank type cleaning device, this effect is the same even if the number of tanks is changed according to the cleaning specifications, and the number of tanks is particularly specified. Not a thing.

[Brief description of drawings]

FIG. 1 is a front configuration diagram of a cleaning device showing an embodiment of the present invention.

FIG. 2 is a rear configuration diagram of a cleaning device showing an embodiment of the present invention.

FIG. 3 is a sectional view of an essential part of an exhaust duct of a cleaning device showing an embodiment of the present invention.

FIG. 4 is a sectional view of a main part of an exhaust duct of a cleaning device showing a conventional example.

FIG. 5 is a cross-sectional view of a main part of an exhaust duct of a cleaning device showing another conventional example.

[Explanation of symbols]

 1 Work 2 Washing Tank 3 Washing Liquid 5 Shower Unit 9 Exhaust Duct 11 Mist Catcher 13 Weir 16 Conveying Means 17 Washing Room 18 Air Blow Chamber 20 Washing Tank 21 Washing Liquid 22 Washing Room 23 Air Blow Chamber 30 Washing Tank 31 Washing Liquid 32 Washing Room 33 Air blow chamber 40 Wash tank 41 Wash liquid 42 Wash chamber 43 Air blow chamber 50 Drying furnace

[Procedure amendment]

[Submission date] April 27, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

Title: Cleaning device

[Claims]

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a combination of a mist of a cleaning liquid generated when cleaning a contaminated cleaning part (hereinafter referred to as a work) and an exhaust device suitable for effectively treating steam. The present invention relates to a cleaning device.

[0002]

2. Description of the Related Art Conventionally, for cleaning general works, a chlorine-based solvent such as trichloroethane or freon has been mainly used.

Since the above substances have excellent solubility of contaminants, excellent permeability to the details of the work and a high cleaning function, and in addition to quick drying after cleaning, this solvent is used for all steps of cleaning, rinsing and drying with the same substance. It was an ideal product and was a representative of industrial detergents. However, the chlorine-based solvent is supposed to deteriorate the global environment by destroying the ozone layer.
It was legally regulated to abolish it in 995. As an alternative solvent, there is a water-based or hydrocarbon-based solvent, but this solvent cannot perform the above-mentioned washing, rinsing and drying with a single substance. Is carried out with a plurality of substances, mainly city water or pure water.

However, in the steam cleaning apparatus, a plurality of types of mist and steam of each cleaning liquid are generated by shower or ultrasonic vibration during cleaning, and it is necessary to effectively treat the mist and steam.

For this reason, as shown in FIGS. 4 and 5, an opening for mist suction is provided in the upper part of the cleaning chamber and the rinsing chamber, and an exhaust duct for merging and discharging the mist is provided. However, it is necessary to collect the mist and vapor from the exhaust duct to prevent environmental pollution. Conventionally, the combined mist is exhausted from the exhaust blower 10 at one place by attaching the mist catcher 11 to the exhaust blower 10. . The blower with the mist catcher 11 has been provided by one provided downstream of the exhaust blower 10 as shown in FIG. 4 and one provided around the runner 51 of the exhaust blower 10 as shown in FIG.

[0006]

However, in the above-mentioned cleaning device, the mist catcher 11 liquefies a mixed mist of a plurality of kinds of cleaning liquids. It is impossible to reuse such mixed and liquefied mist, and there is no other way than to dispose of it as waste liquid. For this reason, the processing problem due to an increase in the consumption of the washing liquid and an increase in the amount of waste liquid deteriorates the environment, which is disadvantageous. In addition, liquefied mist drops on the runner 51 of the exhaust blower 10.
Therefore, the mist dropped on the runner 51 is scattered again to form a mist, which causes a problem that the efficiency of the mist catcher 11 decreases and becomes insufficient.

[0007]

In order to solve the above-mentioned problems, the present invention provides a transfer means for continuously transferring a work, a cleaning tank for each step below the transfer means, and a cleaning chamber above. , An air blow chamber is provided adjacent to this cleaning chamber,
In a cleaning device equipped with a shower unit that sprays multiple types of cleaning liquid toward a workpiece, a plurality of mist catchers that remove the mist of the cleaning liquid generated in the cleaning chamber and the air blow chamber are provided, and cleaning is performed by dropping from the mist catcher. A gutter is arranged in the cleaning tank to collect the liquid and return it to the cleaning tank.

Further, an exhaust duct is connected to the mist catcher, and a weir for preventing the mixing of the washing liquid is provided at the bottom of the exhaust duct.

Furthermore, the mist catcher is arranged at a position horizontally displaced from above the shower unit.

The transfer means is divided between the air blow chamber and the cleaning chamber for the next process.

Furthermore, a drying furnace is arranged adjacent to the air blow chamber, and the conveying means is divided between the drying furnace and the air blow chamber.

[0012]

In the cleaning device having the above structure, the cleaning chamber and the air blow chamber are provided with a plurality of mist catchers for removing the mist of the cleaning liquid generated in each step, and the cleaning liquid dropped from the mist catcher is collected and the cleaning tank is installed. Since the gutter to be returned to is placed in the washing tank, the generated mist of washing liquid adheres to the mist catcher, condenses, and drops. The dripping washing liquid returns to the washing tank of the same washing liquid through the trough without mixing with other washing liquids.

Further, an exhaust duct is connected to the mist catcher, a weir is provided at the bottom of the exhaust duct to prevent mixing of washing liquid, and the transfer means is divided between the air blow chamber and the washing chamber in the next step. Therefore, the washing liquid does not mix with the washing liquid of other steps.

Since the drying furnace is disposed adjacent to the air blowing chamber and the conveying means is divided between the drying furnace and the air blowing chamber, the conveying means in the drying furnace is not contaminated by the washing liquid and pollutes the environment. Disappear.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the cleaning apparatus of the present invention will be described with reference to FIGS.

In the figure, 1 is a work, 2 is a first cleaning tank, 3 is a first cleaning liquid which fills the first cleaning tank 2, and is generally mixed with a detergent or uses high temperature water. Reference numeral 4 denotes a pressure pump for a shower, which is attached to each of the cleaning tanks 2, 20, 30, and 40.

Reference numeral 5 denotes a shower unit for injecting the washing liquids 3, 21, 31, 41 of each step toward the work 1 and communicating with the pressurizing pump 4 of each step, and the washing chambers 17, 2
They are arranged above and below the transport device 16 in the 2, 32, and 42.

Reference numeral 6 is an air blow unit for injecting air toward the work 1 so as to wash chambers 17, 22, 3 in each step.
Air blow chambers 18, 23, 33, 4 adjacent to 2, 42
They are arranged above and below the carrier device 16 in the No. 3 conveyor.

Reference numeral 7 is a cabinet forming the appearance of the cleaning device.

A curtain 8 is provided at the entrance of the cabinet 7. Reference numeral 9 denotes an exhaust duct for exhausting the mist of the washing liquids 3, 21, 31, 41, which is arranged over the respective washing chambers 17, 22, 32, 42. An exhaust blower 10 is attached to the exhaust duct 9.

11 is the washing liquid 3, 21, 3 generated in each step
A mist catcher for removing mist 1 and 41 considers the type of washing liquid used in each process, and if necessary, washing chamber 1
7, 22, 32, 42 and air blow chambers 18, 23, 3
A plurality of them are provided on the ceilings 3 and 43 (in the figure, the cleaning room 2
2, 32, 42 are not provided). The mist catcher 11 is arranged at a position horizontally shifted from above the shower unit 5 and is connected to the exhaust duct 9.
12 is an air damper for adjusting the air volume and is a mist catcher 1.
1 is provided in the exhaust duct 9 downstream. 13 is wash liquid 3,
A weir that prevents mixing of 21, 31, and 41 is provided at the bottom of the exhaust duct 9 so as to project. Reference numeral 14 is an exhaust pipe that guides the purified air to the outside and is connected to the exhaust blower 10. 15 is a gutter which collects the washing liquids 3, 21, 31, 41 after the shower and returns them to the washing tanks 2, 20, 30, 40.
It is arranged above 0, 30, 40.

Reference numeral 16 is a conveying means constituted by a belt 16-1 having air permeability, and is constituted by mesh belt conveyors 16a, 16b, 16c, 16d which are divided as necessary. 16a is a belt conveyor for the first step, 17 is a first cleaning chamber, 18 is a primary air blow chamber, and 19 is a heater for heating the cleaning liquid, which is attached to the cleaning tanks 2, 20, 30, 40.

Reference numeral 20 is a second cleaning tank, and 21 is a second cleaning liquid which fills the second cleaning tank 20. Generally, cleaning liquid mixed with a detergent is used for precision finishing cleaning, but sufficient cleaning is performed in the first cleaning step. If it is formed, a rinse solution with water may be used.

Reference numeral 22 is a second cleaning chamber, 23 is a second air blow chamber, and the other components are the same functional components as the first cleaning chamber 17 and the first air blow chamber 18. However, the belt conveyor 16a of the first cleaning chamber 17 and the first air blow chamber 18
The belt conveyors 16b of the second cleaning chamber 22 and the second air blowing chamber 23 are connected to the first air blowing chamber 18 and the second cleaning chamber 2 respectively.
It is divided into two parts. Further, the mist catcher 11 arranged in the exhaust duct 11 above the second step is arranged above the second air blow chamber 23 so that the shower mist of the shower unit 5 in the second cleaning chamber 22 does not directly scatter and reach.

Next, FIG. 2 connected to the apparatus of FIG. 1 described above.
Will be explained.

Reference numeral 30 is a third cleaning tank, 31 is a cleaning liquid which fills the third cleaning tank 30, and generally becomes a rinse when the third cleaning step is started. The washing liquid 31 often uses water without using detergent. 32 is a third cleaning chamber, 33 is a third air blow chamber, 34 is a drain pipe, and 16c is a belt conveyor, which divides the second air blow chamber 23 and the third cleaning chamber 32.
The other structures are the second cleaning chamber 22 and the second air blow chamber 2.
Same function as 3.

Reference numeral 40 is a fourth cleaning tank, 41 is a cleaning liquid which fills the fourth cleaning tank 40, and generally uses high-purity water. 42 is a fourth cleaning chamber, and 43 is a fourth air blow chamber. Reference numeral 44 denotes a liquid supply pipe for the cleaning liquid 41, which is connected to the fourth cleaning tank 40. An overflow pipe 45 connects the fourth cleaning tank 40 to the third cleaning tank 30. Here, in the belt conveyor 16c, both the washing liquid 31 and the washing liquid 41 are rinse liquids, and when the purity is slightly different, the division between the third air blow chamber 33 and the fourth washing chamber 42 is performed in the fourth step. Since the effectiveness is low, the belt conveyor 16c may be integrated or may be divided as necessary.

Reference numeral 50 denotes a drying furnace, which is adjacent to the third air blow chamber 43 which is an air blow chamber in the final cleaning step, has a belt conveyor 16d therein, and circulates hot air. 16a
Is a belt conveyor, and the third air blow chamber 43 and the drying oven 50
Is split between and.

Next, the operation of the cleaning device having the above structure will be described.

To perform the washing operation with the above apparatus, first,
The work 1 having the attached matter is placed on the belt conveyor 16a of the first cleaning chamber 17 on the inlet side, and is transported and moved in the first cleaning chamber 17. At this time, the washing liquid 3 pressurized by the pump 4 is pressure-fed from A to A of the pressurizing pipe (not shown), and the washing liquid 3 is jetted by the nozzle unit 5 arranged inside and on the belt conveyor 16a. , Reaches the entire surface of the workpiece 1, is shower washed, and the washing liquid 3 is first passed through the gutter 15.
Return to wash tank 2.

Next, the work 1 wet with the washing liquid 3 is
The high-pressure air is blown into the air blow chamber 18 by the air blow unit 6, and most of the washing liquid 3 is blown off and a minute amount is adhered.

At the time of this cleaning and air blowing, mist and some steam are generated by the cleaning liquid 3 and the air hitting the work 1. The mist and some steam are mixed with the air flowing in through the curtin 8 by the drive of the exhaust blower 10 and the first cleaning chamber. 17
And, it is sucked by the mist catcher 11 provided in the upper part of the first air blow chamber 18, adheres to the element (not shown) of the mist catcher 11, is condensed and drops to the lower part due to the weight, and is introduced into the first cleaning tank 2 through the gutter 15. It can be reused as an effective washing liquid 3. At this time, most of the mist and steam can be collected by the mist catcher 11, but a small amount of steam flows into the exhaust duct 9 and is adsorbed on the wall surface thereof to be liquefied and collected at the lower part of the exhaust duct 9, but at the bottom of the exhaust duct 9. The weirs 13 protruding between the washing liquids 21, 31, 4 for other processes
It flows down through the oil catcher 11 without being mixed with 1, and also returns to the first washing tank 2 through the gutter 15 and can also be reused as an effective washing liquid 3.

After that, the air dried by the mist catcher 11 or the like is discharged to the outside through the exhaust pipe 14 by the exhaust blower 10.

The work 1 on which a small amount of the washing liquid 3 has adhered in the first air blow chamber 18 is conveyed by the belt conveyor 16b of the divided second washing chamber 22, is shower-washed with the washing liquid 21, and is further in the second air blowing chamber. 23 and is blown with air. The mist and vapor of the washing liquid 21 generated by this are the same as those in the previous step, and the other washing liquids 3, 3
It can be returned to the second cleaning tank 20 without being mixed with 1, 41 and reused as an effective cleaning liquid 21.

The operation of the other parts is the same as that of the previous step, and therefore its explanation is omitted. After this, the work 1 is conveyed and moved by the belt conveyor 16c from the third cleaning chamber 32 → the third air blow chamber 33 → the fourth cleaning chamber 42 → the fourth air blow chamber 43 to wash away the detergent by rinsing, and a small amount of the washing liquid 41. Complete the wash. The mist and vapor of the washing liquid 31 and the washing liquid 41 generated during this period are the same as those in the previous step.
There is no mixing with and the original washing liquid tanks 30 and 40 are returned. After this, the work 1 is conveyed to the drying furnace 50 and dried to complete a series of cleaning steps. Since the belt conveyer 16d is divided between the air blow chamber 43 and the drying oven 50, the belt conveyer 16d is not contaminated by the washing liquid 41, so that the environment is not contaminated.

[0036]

As described above, according to the present invention, even if a plurality of types of washing liquids are washed in separate steps and the mist vapors of the respective washing liquids are generated, the respective washing liquids are not mixed and the mist catcher and the weir are not mixed. It is collected in the exhaust duct that has been configured, and can efficiently return to the washing tank of the same washing liquid without being re-misted and can be reused as an effective washing liquid, which reduces the consumption of washing liquid and reduces waste liquid. The cost for disposing of waste is reduced and it is effective for the environment, and the effect is great.

Although the present invention has been described with reference to an embodiment using a four-tank type cleaning device, this effect is the same even if the number of tanks is changed according to the cleaning specifications, and the number of tanks is particularly specified. Not a thing.

[Brief description of drawings]

FIG. 1 is a front configuration diagram of a cleaning device showing an embodiment of the present invention.

FIG. 2 is a rear configuration diagram of a cleaning device showing an embodiment of the present invention.

FIG. 3 is a sectional view of an essential part of an exhaust duct of a cleaning device showing an embodiment of the present invention.

FIG. 4 is a sectional view of a main part of an exhaust duct of a cleaning device showing a conventional example.

FIG. 5 is a cross-sectional view of a main part of an exhaust duct of a cleaning device showing another conventional example.

[Explanation of Codes] 1 Work 2 Cleaning Tank 3 Cleaning Solution 5 Shower Unit 9 Exhaust Duct 11 Mist Catcher 13 Weir 16 Conveying Means 17 Cleaning Chamber 18 Air Blow Chamber 20 Cleaning Tank 21 Cleaning Liquid 22 Cleaning Chamber 23 Air Blow Chamber 30 Cleaning Tank 31 Cleaning Liquid 32 Cleaning chamber 33 Air blow chamber 40 Cleaning tank 41 Cleaning liquid 42 Cleaning chamber 43 Air blow chamber 50 Drying furnace

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Nobuyuki Sasaki 1-3, Shinjuyoji, Kashiwa-shi, Chiba 1

Claims (5)

[Claims] 1. A transport means (16) for continuously transporting a work (1), and cleaning tanks (2, 20, 30, 40) for respective steps are disposed below the transport means (16), respectively. The cleaning chambers (17, 22, 32, 42) for each process are provided in the respective process cleaning chambers (17, 22, 3, 3).
2, 42) adjacent to the air blow chamber (18, 23, 3)
3, 43) respectively, and wash liquid (3, 21, 31, 41) toward the work (1) in each step.
In a cleaning device having a shower unit (5) for injecting air, a cleaning liquid generated in each of the cleaning chamber (17, 22, 32, 42) and the air blow chamber (18, 23, 33, 43). The mist catcher (11) for removing the mist of (3, 21, 31, 41) is provided respectively, and the washing liquid (3, 21, 31, 41) dropped from the mist catcher (11) is collected and the washing is performed. A cleaning device, wherein gutters (15) for returning to the tanks (2, 20, 30, 40) are arranged in the cleaning tanks (2, 20, 30, 40), respectively. 2. An exhaust duct (9) is connected to the mist catcher (11) of each step, and the washing liquid (3, 3) of each step is attached to the bottom of the exhaust duct (9).
2. The cleaning device according to claim 1, wherein a weir (13) is provided so as to prevent the mixing of (21, 31, 41). 3. The cleaning device according to claim 1, wherein the mist catcher (11) is arranged at a position horizontally shifted from above the shower unit (5). 4. The cleaning apparatus according to claim 1, wherein the transfer means (16) is divided between the air blow chamber (18, 23) and the cleaning chamber (22, 32) of the next step. .. 5. A drying oven (50) is arranged adjacent to the air blow chamber (43), and the transfer means (16) is divided between the drying oven (50) and the air blow chamber (43). The cleaning device according to claim 1, wherein: