JP2001029903A - Method and apparatus for cleaning - Google Patents

Abstract

PROBLEM TO BE SOLVED: To decrease the occupying area of a cleaning apparatus by decreasing its length and to increase its cleaning capacity by installing two cleaning apparatus having a host for guiding a basket for housing an object to be cleaned into a tank and an apparatus for supplying/discharging cleaning water and connecting each tank by a pipe having a pump. SOLUTION: By operating the jig setting switch 15 and actuation switch 16 of an electric part 17, a basket 13 for housing an object 12 to be cleaned is brought down into a tank 11 by a hoist 14, the object 12 is immersed in a chemical liquid 10 to be cleaned. Next, each solenoid valve 19, 41 in a chemical liquid transfer pipe 18 is opened, and the liquid 10 is transferred to another tank 31 by a pump 20. Next, water is supplied form a water supply pipe into the tank 11, and the object and the tank 11 are cleaned. The draining solenoid valve 24 of a drain pipe 23 is opened, and water in the tank 11 is drained, and the object 12 in the tank 11 is dried naturally. After that, the liquid 10 is supplied again from the tank 31 to the tank 11, and second cleaning is prepared.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for automatically cleaning an object to be cleaned such as a plating jig to which plating sludge has adhered, from a chemical solution washing to a water washing and draining / drying process using substantially only one washing tank. Things.

[0002]

2. Description of the Related Art In plating of electronic parts, for example, electroless nickel plating, nickel sludge is attached to a plating jig. Therefore, when reusing a plating jig, the sludge is removed before use. It is necessary.

In cleaning for removing nickel sludge of a plating jig, nitric acid is generally used as a cleaning chemical.

A plating jig cleaning apparatus using a nitric acid solution is
Conventionally, as shown in a schematic front view in FIG.
Each station including a station of a setting step 3, a station of a chemical cleaning step 5, a station of a rinsing step 6, a station of a draining and drying step 7, and a station of a removing step 8 of an object to be cleaned is arranged in order. Lined equipment is used.

[0005] Then, the basket 2 on which the article 1 to be washed is set is transported by a hoist 9 attached to a rail laid along the line above the line.
The cleaning process is repeated by stopping and descending at each process station, and rising after the process.

[0006]

In the conventional cleaning apparatus as described above, since the respective process stations are arranged in a line to form a line, the entire apparatus becomes long, and the space factor in the plating factory is extremely poor.

In addition, the time required for the hoist to move up and down at the process stations and to move between the process stations is long,
The overall processing time becomes longer, resulting in lower processing capacity. Therefore, the only way to increase the processing capacity is to increase the size of the tank, which results in a larger apparatus and higher production costs.

Accordingly, an object of the present invention is to propose a cleaning apparatus and a cleaning method capable of increasing the processing capacity by using a compact apparatus having a good space factor.

[0009]

According to a first aspect of the present invention, there is provided one tank for performing chemical solution washing, water washing, draining and drying, a basket for setting an object to be washed, and guiding the basket into the tank. This is a washing device in which each tank of two washing devices provided with a hoist and a washing water supply and drainage device is connected by a pipe via a pump.

[0010] With this configuration, the length of the cleaning device is shortened, so that the space factor in the plating factory can be improved.

According to a second aspect of the present invention, a cleaning chemical is put into one of two tanks connected by a pipe via a pump, and an object to be cleaned is immersed in the chemical. After the chemical solution cleaning for a predetermined time, the chemical solution is forcibly transferred from one tank to the other tank, and after the transfer is completed, the object to be washed is washed with water, dried, taken out, and then a new object to be washed is set. While waiting for the second chemical cleaning, the other tank to which the chemical has been transferred is also washed with another chemical after the transfer is completed, and then the chemical is forcibly transferred from the other tank to one of the tanks. This is a cleaning method in which processing from chemical cleaning to water washing to draining and drying is performed in substantially only one tank by repeating a cycle of starting the second chemical cleaning in a standby state in one tank.

[0012] With this configuration, the movement between the process stations is eliminated, and the vertical movement of the hoist is only performed when the hoist is first lowered into the tank and when the hoist is finally taken out, so that the entire processing time can be reduced and the processing capacity can be improved. .

According to a third aspect of the present invention, there is provided a cleaning method according to the second aspect, wherein each processing time from chemical solution washing to water washing and draining and drying is automatically performed according to a program stored in advance by a storage means. is there.

[0014] With this configuration, when the cleaning chemical is put into one of the adjacent tanks, the object to be cleaned is set in the basket, and the jig set switch and the start switch are turned on. Will guide you inside
The object to be cleaned is immersed in the chemical solution, and the chemical solution is washed for a predetermined time stored in the program in advance.After the completion of the chemical solution cleaning, the chemical solution moving electromagnetic valve is opened and the pump operates to force the chemical solution into the other tank through a pipe. After the transfer, after the transfer is completed, the pump stops and the chemical liquid transfer solenoid valve closes.This time, the water supply solenoid valve opens and the object to be washed is rinsed with water for a predetermined time stored in a program in advance. The solenoid valve for water supply is closed, the solenoid valve for drainage is opened, drainage starts, draining of the object to be washed is performed, then natural drying is performed, and then the basket is raised from the tank by the hoist. Since the start switch of the cleaning device is turned off and automatically stopped, the operator takes out the object to be cleaned, sets the object to be cleaned for the second time, and turns on the jig set switch and the start switch. That and it is the second time of chemical cleaning continues. By repeating a series of cycles, the process from chemical cleaning to washing, draining and drying can be performed in substantially only one tank and automatically according to the set program. Since it is only for the case of putting in, the opportunity to come in contact with dangerous chemicals such as strong acid is reduced, so that measures for disaster prevention become easy.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to an electrical component having a tank for storing a chemical solution, a basket for setting an object to be cleaned, a hoist for guiding the inside of the tank, a start switch, and a program for storing each processing time. And, means for forcibly transferring the chemical solution to the next tank after the chemical solution washing, water washing means and drainage means,
Cleaning devices, which are connected to each other via a pump and provided adjacent to each other, wherein a cleaning agent is put into one of the tanks, and an object to be cleaned is set in a basket.
When the start switch is turned on, the hoist automatically guides the basket into the tank, performs chemical cleaning for a predetermined time according to a program stored in advance, after completion, forcibly transfers the chemical to the other tank by a pump, and after the transfer, The object to be washed is rinsed for a predetermined time, then drained, drained, air-dried, taken out of the tank, taken out of the object to be washed, and subsequently set for the second time, and the start switch is turned on. In the other tank to which the chemical solution was transferred, the object to be cleaned, which was set in advance immediately after the transfer was completed, was guided to the other tank, and the chemical solution was washed according to the program.
This is a cleaning method in which a chemical solution is forcibly transferred from the other tank to one of the tanks, and after the transfer, a series of cycles for starting the second chemical cleaning of the object to be cleaned in a standby state is repeated.

As described above, the present invention cleans an object to be cleaned by forcibly transferring a chemical solution from one tank to the other tank or from the other tank to one tank without moving the object to be cleaned. Therefore, the process from the chemical washing process to the water washing process and the draining and drying process can be performed in substantially one tank, and there is no movement between the hoist processes, and the vertical movement of the hoist is first lowered into the tank. Only at the time of raising the last take-out, there is an operational effect that the processing time can be reduced and the apparatus can be made compact.

(Embodiment) An embodiment of the present invention will be described below in detail with reference to FIG.

FIG. 1 is a front view showing an embodiment of the cleaning apparatus of the present invention.

In FIG. 1, reference numeral 10 denotes a cleaning solution, 11 denotes one tank, 12 denotes one object to be cleaned, 13 denotes a basket, 1
4 is a hoist, 15 is a jig set switch, 16 is a start switch, 17 is an electrical unit, 18 is a chemical liquid transfer pipe, 1
9 is a solenoid valve for transferring chemicals, 20 is a pump, 23 is a drain pipe, 24 is a drain valve, 31 is the other tank, 32 is the other object to be washed, 33 is the other basket, and 34 is the other hoist. , 40 is the other chemical liquid transfer pipe, 41 is the other chemical liquid transfer solenoid valve, 44 is the other drain pipe, 45
Is the other solenoid valve for drainage, 51 is a liquid receiving pallet, 52 is an entire cover, 53 is an odor duct, and
0, a basket 13 provided on the upper surface of the tank 11 for setting the object 12 to be washed, a hoist 14 for guiding the basket 13 into the tank 11, and an object 1 to be washed.
A touch panel unit provided with a jig set switch 15 and a cleaning device start switch 16 that are electrically connected to the second unit 2; and a unit that is installed on the touch panel unit and stores, as a program, each processing time of a chemical cleaning time and a water cleaning time set by a timer. An electrical component 17 having a pipe 18, a pump 20 for transferring a cleaning solution to the next tank 31 after cleaning the solution.
The cleaning device is provided with two cleaning devices each including a solenoid valve 19, a drainage pipe 23 for draining and drying after washing, and a solenoid valve 24 thereof, which are connected to each other via the pump 20 and are provided adjacent to each other. Although not shown, a water supply device including a water supply pipe and an electromagnetic valve is attached to each of the one tank 11 and the other tank 31.

Here, the overall size of the cleaning device is 33
It is 00 mm, 2000 mm high and 800 mm deep, and has a floor area of about 6 square meters.

Next, the size of the tank 11 of the cleaning device is 1 horizontal.
000 mm, height 800 mm, depth 700 mm, made of vinyl chloride resin.

The cleaning object 12 was a plating jig used for nickel plating. Nitric acid was diluted and used in the cleaning solution 10 to remove nickel sludge adhering to the jig.

The article to be washed 1 hooked on the basket 13
2. The number of washings for one plating jig is ten.

The size of the basket 13 is 73
0 mm, height 600 mm, width 480 mm, and the number of washings for one washing can be changed depending on the size of the electrode.

The jig set switch 15 and the start switch 16 are arranged on a touch panel at the center of the front of the apparatus.

When these switches are turned on, the following operations are automatically performed sequentially.

(1) First, the basket 13 on which the object to be cleaned 12 is set is lowered into the tank 11 by the hoist 14, and the object to be cleaned 12 is immersed in the chemical solution 10, and cleaning with the chemical solution 10 is started.

The cleaning time with the chemical is 8 hours. This chemical cleaning time can be arbitrarily set by a timer attached to the touch panel.

(2) When the chemical cleaning is completed, the electromagnetic valves 19 and 41 are opened, and the chemical 10 is forcibly transferred by the pump 20 to the other adjacent tank 31.

(3) Next, when the chemical solution 10 in the tank 11 is exhausted, the solenoid valves 19 and 41 are closed. This time, although not shown, the water supply solenoid valve is opened and the water supply pipe is opened. Water is supplied into the tank 11, and washing of the object to be cleaned 12 and the tank 11 is started.

The washing time is 2 hours.

The washing time and the water supply time are stored in a program and can be arbitrarily set by the program.

(4) When the washing is completed, the solenoid valve 24 for drainage is opened to start drainage.

(5) After the water has drained from the tank 11, the object to be cleaned is naturally dried as it is. This is called draining drying, and the draining drying time is one hour.

The draining and drying time can be arbitrarily set by a timer attached to the touch panel.

(6) After draining and drying, the hoist 14
The basket 13 is lifted by the
Is returned to the original set position, and the activation switch 16 of the cleaning device is turned off.

This completes one cleaning operation.

Thereafter, the worker takes out the object to be cleaned, sets the object to be cleaned for the second time, turns on the jig set switch 15 and the start switch 16, and makes the second chemical cleaning stand by. If a signal indicating that the cleaning solution 10 has been transferred from the adjacent other tank 31 enters the tank 11, the hoist 14 automatically operates, and the above (1) to (1) to
The step operation of (6) is repeated.

By the way, in the process of the above (2), if the object to be cleaned 32 is set in the adjacent basket 33 in advance and the switch is turned on, the chemical solution transferred to the other tank 31 next to the next tank 31 is as follows. As in the case of 1), the basket 33 on which the object 32 is set is lowered by the hoist 34 into the other adjacent tank 31 and cleaning with the chemical 10 is started.

The cleaning apparatus according to the present embodiment has a length and an occupied floor area of about one-third that of the conventional line type apparatus, is extremely compact, has a good space factor, and is very advantageous for a factory. It is a device.

Further, the adjacent devices can be operated continuously when the chemical solution is moved, so that the operation rate of the entire cleaning device is increased, and the cleaning capacity can be greatly increased.

In this embodiment, the cleaning device is described in the case of using nitric acid as a chemical solution. However, the cleaning device can be used not only for nitric acid but also for cleaning with any chemical solution that is gentle to a tank. In this case, the same effects as those described in the embodiment can be obtained, such as improvement of the operation rate, increase of the processing capacity, and efficient use of the space factor.

If all the control times for the above automatic operation are set in advance by a timer on the touch panel, they are programmed and stored in the storage device.

[0044]

As described above, the cleaning device of the present invention moves the chemical solution to the next tank when the chemical solution cleaning is completed, and for the object to be cleaned, from the first chemical solution cleaning step to the last draining and drying step. Since the cleaning device and the cleaning method are configured so that they can be processed to the end in the first tank without being moved, (1) compared to the conventional cleaning device and the cleaning method, (1) the object to be cleaned does not move between processes. Therefore, the entire processing time is short. (2) As a result, the cleaning capacity can be improved, and (3) the cleaning apparatus is compact and slim without lengthening, and as a result, the space factor is improved, which is extremely advantageous for increasing the utilization rate of the factory floor area. (4) Further, the adjacent devices can be alternately and continuously operated in response to the movement of the chemical solution, so that the operation rate of the devices can be increased and the processing capacity can be further increased. Furthermore, (5) by changing the size of the basket, it is possible to cope with cleaning of various objects to be cleaned, and (6) it can be applied to cleaning with a chemical other than nitric acid. Invention.

[Brief description of the drawings]

FIG. 1 is a front view of a cleaning apparatus according to an embodiment of the present invention.

FIG. 2 is a front view of a conventional cleaning device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Cleaning chemical liquid 11 One tank 12 One to-be-cleaned object 13 Basket 14 Hoist 15 Jig set switch 16 Activation switch 17 Electrical part 18 Chemical liquid transfer pipe 19 Chemical liquid transfer electromagnetic valve 20 Pump 23 Drainage pipe 24 Drainage electromagnetic valve 31 The other tank 32 The other object to be cleaned 33 The other basket 34 The other hoist 40 The other chemical solution transfer pipe 41 The other chemical solution transfer electromagnetic valve 44 The other drainage pipe 45 The other drainage electromagnetic valve 51 The liquid receiving pallet 52 Overall cover 53 Odor duct

Claims (3)

[Claims] 1. A chemical liquid washing, water washing, draining and drying treatment.
The two tanks of the two washing apparatuses each having a tank, a basket for setting an object to be washed, a hoist for guiding the basket into the tank, and a rinsing water supply and drainage device are connected with a pipe via a pump. A cleaning device characterized by being connected. 2. A cleaning chemical is put into one of two tanks connected by a pipe via a pump, and an object to be cleaned is immersed in the chemical to wash the chemical for a predetermined time. Forcibly transferred from one tank to the other tank, after the transfer is completed, the object to be washed is washed with water, drained, dried and taken out, and then a new object to be washed is set, and the second chemical cleaning standby is performed. At the same time, in the other tank to which the chemical solution has been transferred, after the transfer is completed, the other object to be cleaned is washed with the chemical solution, and then the chemical solution is forcibly transferred from the other tank to one of the tanks, and the second time waiting in one of the tanks is performed. A cleaning method comprising performing a process from chemical solution washing to water washing and draining and drying in substantially only one tank by repeating a cycle for starting chemical solution washing. 3. The cleaning method according to claim 2, wherein each processing time from the chemical solution washing to the water washing and draining / drying is automatically performed according to a program stored in advance by a storage means.