JP2001343140A - Clean work module and clean tunnel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To discharge flow-down clean air from the lower part of a work unit and easily change the work unit. SOLUTION: In a clean work module 1, the work unit 4 is attached to a clean space 3 to which the flow-down clean air 2 is supplied and a prescribed work is carried out in the clean space 3 by the work unit 4. An opening part 10 is provided on the main body wall parts 7 and 8 forming the clean space 3 and at a part opposite to a working opening 9. A combined and movable unit 6 is provided from the part opposite to the working opening 9 so as to cover the opening part 10 therewith. The work unit 4 is attached to the front surface of the movable unit 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clean operation module and a clean operation tunnel for forming a so-called clean tunnel, which is a long clean space accommodating a plurality of operation units. More specifically, the present invention relates to an improved method of supporting a work unit in a clean work module.

[0002]

2. Description of the Related Art Work, assembly, inspection, and the like of a work are sometimes performed in a clean room. As a clean room, there is a turbulent type ball room (large room type) in which clean air is blown down from a ceiling and is sucked out from the floor surface of the room and from the ceiling and wall surfaces. In some cases, clean air is blown down from the ceiling to be sucked out only from the floor of the room to form only a down flow.

In recent years, the degree of cleanliness required has been increasing. However, in order to increase the degree of cleanliness, it is necessary to increase the number of circulation agitation in a uniform downflow system, and the cleanroom system requires a large facility. Cost is high. Further, if clean air is supplied to the entire work room, not only the equipment cost but also the running cost and energy consumption become enormous. For these reasons, a method of isolating only the periphery of a work unit that works on a work and locally forming a clean space has been adopted.

As one of them, a so-called clean bench is known. For example, as shown in FIG. 7, the clean air 102 is caused to flow down only around the work unit 101 placed on the exhaust surface of the support base 100, and the space to which the clean air 102 is supplied is covered (not shown). ) To isolate it from the work room. Such clean benches are continuously provided to form a clean tunnel, and work such as processing is performed one after another while transporting the work in the clean tunnel.

[0005]

However, in the above-mentioned clean bench, since the working unit 101 is mounted on the exhaust surface, the clean air 102 cannot be discharged from the exhaust surface, and a uniform down flow is formed. Can not. That is, even if an exhaust surface is formed on the upper surface of the support base 100 using, for example, punching metal, the working unit 10
The mounting of No. 1 blocks the hole. For this reason, the clean air 102 is blown down by the work unit 101 and then turbulently flows to the side or upward, and fine dust (floating particles) generated in the work unit 101 is likely to adhere to the work.

Further, the working unit 101 is mounted on the support table 100.
After the work unit 101 is covered with a cover, the cover around the work unit 101 must be removed when the work unit 101 is repaired or replaced. During that time, the entire operation of the clean tunnel must be stopped.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a clean operation module and a clean tunnel capable of discharging down-flow clean air from below the operation unit and easily replacing the operation unit.

[0008]

In order to achieve the above object, according to the first aspect of the present invention, a working unit is mounted in a clean space to which downflow clean air is supplied, and the working unit is provided in the clean space by a predetermined unit. In the clean work module that performs the work, the opening is provided on the main body wall forming the clean space on the opposite side to the working opening, and from the side opposite to the working opening so as to cover the opening. A movable unit that can be moved in combination is provided, and the work unit is attached to the front of the movable unit. Here, in this specification, the “clean operation module” means a minimum unit for forming a clean tunnel by connecting several clean spaces to form a clean space. However, the clean work module can be used alone.

Therefore, since the working unit is mounted on the front surface of the moving unit in a wall-mounted manner, there is no need to mount the working unit on the exhaust surface. Because of this, a space is provided between the working unit and the lower exhaust surface,
All of the clean air of the down flow can be discharged downward. In addition, since the working unit can be moved in and out of the clean space simply by moving the moving unit, it is easier to replace and repair the working unit than in the conventional case where the work unit placed on the support is covered with a cover. Will be able to do it.

[0010] The invention described in claim 2 is based on claim 1.
In the clean working module described above, a head port made of a transparent body and protruding right above the working unit is provided above the working opening.
Therefore, the worker can look into the working unit from above through the head port, so that workability can be improved.

Further, in the clean tunnel according to the third aspect, a plurality of clean operation modules according to the first or second aspect are arranged so that the clean space is continuous. In this case, since the plurality of clean spaces form a long continuous clean tunnel, the work can be conveyed without being taken out of the clean space and a flow operation can be performed.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below in detail based on an example of an embodiment shown in the drawings. FIG. 1 shows an embodiment of the clean work module 1 of the present invention. The clean work module 1 is configured such that a work unit 4 is attached to a clean space 3 to which clean air 2 of a down flow is supplied, and a predetermined work is performed by the work unit 4 in the clean space 3. The clean working module 1 includes a main body 5 that forms the clean space 3 and a moving unit 6 that supports the working unit 4.

The main body 5 forms a clean space 3 by shielding the front and rear with main body walls 7 and 8.
A working port 9 formed in the main body wall 7 on the 0 side (front side);
An opening 10 is formed in the main body wall 8 on the opposite side (rear side) of the working port 9. In addition, the mobile unit 6
Can be combined and moved from the rear of the main body 5 so as to cover the opening 10 of the main body 5, so that a clean space can be formed when combined, and the work unit 4 is attached to the front part 11 to mount it on a wall. I try to support. For this reason, since it is not necessary to mount the working unit 4 on the exhaust surface 12, the working unit 4 and the lower exhaust surface 1
2, a clean space can be discharged from the entire clean air 2 downward, and the cleanliness can be easily increased. Further, since the working unit 4 can be moved in and out of the clean space 3 only by moving the moving unit 6, the working unit 4 can be easily replaced or repaired.

The main body 5 is formed by assembling a square pipe as shown in FIG. In the present embodiment, the main body 5 is provided with three operation unit frames 13.
To have. In the present embodiment, the number of the working unit frames 13 of the main body 5 is three, but the number is not limited to this, and at least one may be provided, for example, two as shown in FIG.

A main filter 14 through which the clean air 2 flows down is mounted above the clean space 3. An exhaust surface 12 for discharging air in the clean space 3 is formed below the clean space 3. Below the exhaust surface 12, the exhaust is opened in the horizontal direction and downward, and the exhaust is discarded into the working chamber.

In this embodiment, a punching metal is used as the exhaust surface 12. For this reason, since an object can be placed on the exhaust surface 12, for example, the belt conveyor 15 can be placed. In this case, the work 16 can be easily transported in the clean tunnel 17. In this embodiment, the punching metal is used as the exhaust surface 12. However, the present invention is not limited to this. In the case where no object is placed on the exhaust surface 12, it may be a simple exhaust duct that communicates vertically without providing a plate-like object. good.

The main body wall 7 in front of the clean space 3 is formed of a transparent acrylic plate. Therefore, the clean space 3 can be shielded from the outside, and the operator 30 can visually recognize the inside of the clean space 3.

A transparent vinyl curtain 18 is attached to the work opening 9. The curtain 18 has a length that covers from the upper portion of the working port 9 to the exhaust surface 12. Thus, outside air and dust can be prevented from entering the clean space 3 in a range from the working port 9 to the exhaust surface 12. The curtain 18 is provided with a working glove portion 19. Therefore, the worker 30 can operate the work unit 4 while shielding the clean space 3 from the outside. In addition, it is possible to prevent dust attached to the hand of the worker 30 from being transferred to the work 16. In this embodiment, a pair of left and right glove portions 19 is provided for each work unit frame 13.

The main body wall 8 behind the clean space 3 is formed of a transparent acrylic plate. On the rear side of the main body wall 8, instruments 20 for measuring the assembly dimensions of the work and the operation test are attached. For this reason,
The operator 30 can see the instruments 20 through the two transparent body walls 7 and 8 before and after. And instruments 20
Are arranged outside the clean space 3, the turbulence of the air flow can be suppressed, and the temperature rise due to dust entering the clean space 3 and heat generation can be prevented.

At the upper part of the main body 5, there is provided a clean air supply means 21 for sucking outside air and filtering dust while sending air into the clean space 3. The clean air supply means 21 includes a fan 22 that sucks outside air from the rear part of the main body section 5 and blows the air to an upper duct 24, a pre-filter 23 that filters coarse dust when taking in outside air, and a clean space 3 from the duct 24. And a main filter 14 for filtering fine dust when blowing down. As the present filter 14, a HEPA filter is used. As the pre-filter 23, a pre-filter having a performance suitable for the environment in which the clean operation module 1 is used is selected. For example,
When the clean operation module 1 is used in a clean room, it is more efficient to use a relatively fine filter, and when the clean operation module 1 is used in a normal environment, a relatively coarse filter is used. It is preferred to use

Reference numeral 25 in FIG. 1 denotes illumination such as a fluorescent lamp. Thereby, the clean space 3 can be maintained bright regardless of the brightness of the installation environment of the clean work module 1, so that the workability can be improved.

On the other hand, the moving unit 6 has a caster 26 and is provided so as to be able to move in and out from behind the main body 5. The working unit 4 mounted on the front surface 11 of the moving unit 6 in a wall-mounted manner is, for example, a thrust plate deflection / height inspection machine as shown in FIG. This is because a support portion 27 that supports the work 16 so as to be able to move back and forth,
And an inspection unit 28 for performing an inspection by contacting the mobile unit 6 from above, each of which is attached to the front surface of the moving unit 6. In the present embodiment, a thrust plate runout / height inspection machine is used as the work unit 4. However, the work unit 4 is not limited to this, and can perform various operations such as processing and inspection on the work 16. . For example, a coil forming machine, a parallelism / height inspection machine for a hub, an inspection machine for a thrust of the work 16, an adhesive application machine, and the like can be used. Further, the present invention is not limited to providing one work unit 4 in correspondence with one work unit frame 13 of the main body 5, and a plurality of work units 4 may be provided in one work unit frame 13. .

The working unit 4 is located on the back side of the working unit 4 of the moving unit 6, that is, inside the moving unit 6.
A sequencer, a solenoid valve, and the like for operating the control unit are provided. For this reason, since the sequencer, the solenoid valve, and the like are outside the clean space 3, the turbulence of the air flow can be suppressed, and the temperature rise due to the intrusion of dust and heat generation can be prevented.

Further, when the moving unit 6 and the main body 5 are joined, the joint is sealed by interposing a seal packing. Then, screws are screwed from the clean space 3 side with bolts so that the airtightness is enhanced by the close contact of the seal packing.

By the way, when using the above-mentioned clean working module 1, as shown in FIG.
A clean tunnel 17 is formed by arranging up to eight units so that the clean space 3 is continuous. In this case, since the plurality of clean spaces 3 continuously form the long clean tunnel 17, the work 16 can be conveyed without being taken out of the clean space 3 to perform the line work. Work 1
The transfer of 6 may be performed manually, or a belt conveyor 15 may be provided and used.

Further, as shown in FIG. 2, a seal packing 29 is provided at a connection portion between the arranged clean operation modules 1.
Is provided.

The operation when working on the work 16 using the above-mentioned clean work module 1 will be described below.

Before the operation, the operation unit 4 is attached to the moving unit 6 in advance, the operation unit 4 is adjusted, and then the operation unit 4 is assembled to the main body 5. Then, the clean air supply means 21 is operated. As a result, the outside air passes through the pre-filter 23 and the main filter 14 and flows down as clean air 2 into the clean space 3.

The clean air 2 is shielded from the outside air by the main body walls 7, 8 and the curtain 18, flows around the working unit 4, goes down, and is exhausted from the exhaust surface 12. In this state, the worker 30 holds the glove section 19 of the curtain 18.
The work in the work unit 4 can be performed by putting in a hand.

When removing the working unit 4 from the clean space 3 for maintenance such as replacement or repair, the moving unit 6 is detached from the main body 5 and pulled out rearward. As a result, the work unit 4 is moved to the clean space 3.
Can be easily removed from

According to the clean working module 1 of the present embodiment, since the curtain 18 is provided in the working opening 9, it is possible to suppress the outside air from entering through the working opening 9, and to minimize the entry of dust. Thereby, the cleanness of the clean space 3 can be maintained high.

The above embodiment is an example of a preferred embodiment of the present invention, but the present invention is not limited thereto, and various modifications can be made without departing from the gist of the present invention. For example, in the present embodiment, the main body wall portion 7 made of an acrylic plate is formed above the work opening 9, but the present invention is not limited to this, and a transparent curtain 18 is entirely provided from the top of the clean space 3 to the exhaust surface 12. You may make it attach. In this case, as shown in FIG.
For three, a pair of glove parts 19 and a head port 31 can be provided. The head port 31 is made of a transparent body and projects right above the work unit 4. For this reason, the worker 30 can look into the working unit 4 from above from the head port 31, so that workability can be improved.

In each of the above embodiments, the working port 9
Although the curtain 18 is attached to the opening, the working opening 9 may be left open as shown in FIG.
In this case, if the clean air 2 is supplied more strongly and is continuously discharged from the working port 9, the intrusion of outside air from the working port 9 can be suppressed. This also eliminates the need to place the working unit 4 on the exhaust surface 12, so that a space can be provided between the working unit 4 and the lower exhaust surface 12 so that the clean air 2 can be discharged downward. The degree of cleanliness can be increased.

As described above, various clean work modules 1 are determined based on the presence or absence of the curtain 18 and the presence or absence of the head port 31.
Can be selected in consideration of the required degree of cleanliness, the clean environment outside the tunnel 17, and the workability of the process.

Further, in each of the above embodiments, the exhaust surface 1
Although the air is discharged from 2 and discarded, the air is not limited to this and may be circulated to the clean air supply means 21 and reused. In this case, since the clean space 3 can be designed to have a minimum necessary volume, the number of times of recirculation can be increased as compared with the conventional case of recirculating the entire clean room. Therefore, the cleanness of the clean air 2 can be easily increased.

[0036]

As is apparent from the above description, according to the clean working module of the first aspect, the working unit is mounted on the exhaust surface because the working unit is mounted on the front surface of the moving unit in a wall-mounted manner. It is not necessary to dispose it, and it is possible to discharge all the down-flow clean air downward. Therefore, the turbulence of the airflow is suppressed, so that minute dust hardly adheres to the work. As a result, in order to obtain a desired degree of cleanliness, equipment costs, running costs, and energy consumption can be reduced as compared with the related art.

Further, since the working unit can be moved in and out of the clean space only by moving the moving unit, the working unit can be easily replaced or repaired. Therefore, maintenance of the operation unit can be performed during operation of the line, and it is not necessary to stop the entire line for maintenance, so that the operation rate can be increased.

Further, since the volume of the clean space can be minimized, the number of times of recirculation can be increased as compared with the case where recirculation of the entire clean room is performed. Therefore, the cleanness of the clean air can be easily increased.

According to the clean working module of the second aspect, the worker can look into the working unit from above from the head port, so that workability can be improved.

Further, according to the clean tunnel of the third aspect, the work can be transported without being taken out of the clean space and the work can be performed.

[Brief description of the drawings]

FIG. 1 is a side view showing a clean working module of the present invention.

FIG. 2 is a perspective view showing a frame of a main body of the clean operation module.

FIG. 3 is a front view showing a state in which a clean operation module is connected.

FIG. 4 is a perspective view showing an example of a work unit.

5A and 5B show another embodiment of the main body, wherein FIG. 5A is a front view and FIG. 5B is a side view.

FIG. 6 is a side view showing another embodiment of the main body.

FIG. 7 is a schematic view showing a conventional clean bench.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Clean working module 2 Clean air 3 Clean space 4 Working unit 6 Moving unit 7, 8 Body wall 9 Working port 10 Opening 12 Exhaust surface 17 Clean tunnel 31 Head port

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Noriyuki Suzuki 6100 Uehara, Ina-shi, Nagano F-term in Sankyo Seiki Seisakusho Ina Plant (reference) 3L058 BE02 BF01 BF03 BG03 BG05

Claims (3)

[Claims] 1. A clean working module in which a work unit is mounted in a clean space to which clean air of a downflow is supplied, and a predetermined work is performed by the work unit in the clean space. An opening on the side opposite to the working port, and a movable unit that can be combined and moved from the side opposite to the working port so as to cover the opening, and a front surface of the moving unit. A clean work module, wherein the work unit is mounted on the work module. 2. The clean working module according to claim 1, wherein a head port made of a transparent body and protruding right above the working unit is provided above the working port. 3. A clean tunnel, wherein the clean space is formed by arranging a plurality of clean operation modules according to claim 1 or 2.