JPS62294478A - Plate cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention Field of Industrial Application This invention relates to a plate cleaning device installed in a production line for plates (resin plates, glass plates, printed circuit boards, etc.).

PRIOR TECHNOLOGY Various devices have been considered for cleaning dust on various plates manufactured by the prior art, and an example of the conventional device is shown in FIGS. 7 to 9. FIG. 7 is a view from the side. Explanatory drawings, FIG. 8 is a Y-Y direction arrow view of FIG. 7, and FIG. 9 is an enlarged view of the cleaning and feeding portion of the plate in the upper half of FIG.
1 is a casing housing, 42 is a beam switch for detecting that the plate 10 has entered, 43 is a caster for moving the flute body, 44 is a level adjuster, and 45 is an operation panel, a switchboard, etc. R indicates the direction of movement of the plate.

When the plate 10 enters the casing 41, the beam switcher detects it, and the variable speed motor 46 is activated, moving the cleaning roller 11 and the neutralizing and feeding roller 15 in the direction of arrow U.
Drive in the direction shown. 16 indicates the axis of the roller 15.

Reference numeral 12 indicates the shaft of the cleaning roller 11, 131d indicates a flexible spongy rubbery portion of the shaft, and 14 indicates a nonwoven fabric portion on the outer periphery. This cleaning roller 11 rotates at a circumferential tangential speed approximately 1.5 times that of the feed roller 15, and has a relative speed to the speed of the plate.
Scrub the plate surface to remove dust from the plate surface.

And plate 1. (This cleaning row 2 in the direction of movement of l
A high-speed nozzle blowout nozzle l is provided in front of the plate 11 and tilted backward by about 45 degrees, and a high-speed airflow of about 80 m10 ea is blown onto the plate surface, blowing off the plated dust [7, and escaping to the rear. This high-speed airflow passes through the duct 31 from the turbo blower 30, enters the upper plenum chamber 5 as shown by the arrow a□, and enters the prefilter 4, H
Enters plenum duct 2 via EPA filter 3,
(blows out from nozzle l).

30' indicates a drive motor for the turbo blower 30.

Next, to prevent contaminated air from entering, the sirocco fan 32
The air for blowing out at a slight speed passes through the duct 33 and follows the arrow a2.
As shown, the air enters the upper plenum chamber 5', enters the supply ducts 21 and 23 via the pre-filter 4' and the HEPA filter 3', and enters the air supply ducts 21 and 23 through the perforated plates 22 and 24, respectively, at a rate of about 0.5 m/sθC. Clean air is blown out at a slight wind speed. 32' is a drive motor for the sirocco fan, and 6 is a partition between plenum chambers 5 and 5'.

A part of the air blown out at high speed and low wind speed is sucked into the suction duct 25 or 28. As shown by the arrows, the air sucked into the suction duct 25 from the suction port 26 is passed through the left and right duct hoses 34 and 35 and into the suction duct 28.
The air sucked from the suction hole 29 is transferred to the duct hose 36.
, 37 to a collection chamber 38 and return to the sirocco fan 32. The remaining air flows from the perforated plate n into the lower casing 41 as shown by arrow F, and then reaches the turbo blower 30. The casing 41 is provided with a perforated plate portion 47 that communicates with the outside air, and the outside air is taken in for cooling as well. Since the air is sent at regular intervals, if there is no plate under the nozzle, the high-speed air is directly sucked into the suction duct 28 at the bottom.

The problem with this conventional device is that all of the high-speed airflow blown out from the high-speed blowout nozzle l is not collected by the turbo blower or the sirocco fan 32, and some of it swirls on the plate 1o as shown by arrow C. A portion is discharged outside the device as shown by the arrow. The problem with the vortex flow shown by arrow C is that
The dust on the plate 10 blown away by the high-speed airflow blown out from the high-speed blowing nozzle 1 re-attaches to the plate 10 and the feed roller 15' due to the vortex of arrow C, and it is transferred between the feed roller 15' and the plate HO. The pressed dust cannot be removed by the high-speed airflow blown out from the high-speed blowout nozzle 1, and it re-attaches to the feed roller 15" behind the nozzle, and is removed by the cleaning roller 14 and the high-speed airflow blowout nozzle 1. The problem with the air flow shown by arrows and D' is that the high-speed air flow containing dust blown away from plate 1 passes through the gap and cannot be removed. This means that it is discharged outside the device.

This is a big problem when using this device in a clean room, and if there is a device that does not like airflow, there will be a big delay, and the rough airflow will cause static electricity to build up on the airflow, causing other dust to re-adhere. There is a problem.

Another problem: Although this conventional device is effective for removing dust attached to the surface of the plate, it cannot remove dust attached to the end surface of the plate. It is in.

A corona discharge electrode is placed on the plate surface for the purpose of removing static electricity to improve cleaning ability)! However, since the corona discharge 5L acts like a dust collection box and the electrode, dust will accumulate on the electrode, so it must be installed regularly.
i. Cleaning of the poles is required.

For manufacturing reasons, there are cases where it is desired to pass through a mortuary production line that does not allow mixing of plates, but the plates are cooled by the high-speed air from the high-speed blowing nozzle in the plate cleaning equipment, making it difficult to pass through the post-process. influence Furthermore, when the thickness of the plate is not the same, the difference in thickness is absorbed by the elasticity of the cleaning roller, but with conventional devices, the pressure force between the cleaning roller and the plate changes as the thickness of the plate changes. , the cleaning ability changes.

Also, the nature of the dust adhering to the plate, and the
Depending on the shrine η, it may be necessary to adjust the pressure contact force and clean it.

Means to solve problems 6. With this invention, it is possible to eliminate the drawbacks of the conventional methods.

A high-speed blowout nozzle is installed near the cleaning roller.

The feed roller between the high-speed blowout nozzle and the cleaning roller has been eliminated to prevent dust from re-adhering to the plate due to the pressure of the feed roller. In addition, high-speed blowing nozzles were provided on both sides of the cleaning roller to prevent airflow containing dust from being discharged outside the device.

Embodiment FIG. 1 is an explanatory diagram of an embodiment of the present invention seen from the side, FIG. 2 is a view taken along the Y-Y direction of FIG. 1, and FIG.
-Z direction arrow diagram, FIG. 4 is an enlarged view of the cleaning and feeding portion of the upper half plate of FIG. 1.

In the figure, 48 is the casing housing, 42 is the plate 10
A beam switch that detects when a beam enters.

43 is a caster for moving the housing, 44 is a level adjuster, and 45 is an operation panel, a power distribution board, etc. R indicates the direction of movement of the plate. When the cleaning roller 10 enters the casing 48, the beam switch 42 detects this, and the variable speed motor 61 drives the cleaning roller 49.

The variable speed motor 62 that drives the static elimination and feed rollers 15 is activated to drive each roller in the direction shown by arrow U. First, the end face of the plate 1o is rubbed by the static eliminating brush 52 to clean dust adhering to the end face.

A high-speed blowing nozzle mark is provided in front of the cleaning roller 49 in the direction of movement of the plate 10 at an angle of about 45 degrees toward the cleaning roller, and a high-speed airflow G of about 80 m/BθC is blown onto the plate surface to remove dust on the plate. Blow it away. At the same time, air g with a volume of approximately 20 inches of the volume of air flow G is induced.

Next, the plate 10 is sent to the cleaning roller 49,
The cleaning roller 49 rotates at a circumferential tangential speed faster than the feed roller 15, has a relative speed to the speed of the play HO, and scrapes the plate surface to peel off dust on the plate surface.

In addition, the rotational speed of each roller can be arbitrarily set depending on the plate drawing, making efficient cleaning possible. Further, if the thickness of the plate differs, the pressure force between the plate and the cleaning roller changes, and the cleaning ability of the cleaning roller changes, so the pressure force between the plate and the cleaning roller can be adjusted by the cleaning roller interval adjustment mechanism 76. That is, in the illustrated example (see FIG. 1), when the worm shaft 76'' is rotated by the hand wheel 76',
screw! ! 176'' rotates, the drive shaft 78 moves up and down, and moves the roller 49 up and down.

After the plate passes the cleaning roller 49, dust on the surface of the plate 10 is blown away by a high-speed air flow H of about 80 m/θθC blown from a high-speed blowing nozzle 51 tilted at about 45° toward the cleaning roller.

At the same time, air with an air volume of about 20 cm from the H outlet is sucked.

The high-speed airflows G and H blown out from these high-speed blowout nozzles 50 and 51 enter the plenum chamber 64 from the blower 60 via the duct hose 63, pass through the pre-filter 65, the HEPA filter 66, and the diversion chamber 67, and exit from the diversion chamber. Divided into duct ports 68 and 69,
The air enters the supply chambers 55 and 53 and is blown out from the high speed blowing nozzle 51.

A part of the air that has entered the air supply chambers z55 and 53 enters the expansion chamber 57 through the small hole 70 at a high speed that is almost the same as the blowing wind speed from 50 and 51, expands and diffuses, and is approximately 0.5 m/θθ.
With a slight wind speed of C, the clean chamber 7 is moved from the expansion chamber 70.
1, at which time some air is discharged from the plate outlet 58 to the outside of the casing. If the outside of the machine is in a clean room, etc., it may be slightly sucked inward. Clean chamber 7
The air that has entered 1 is transferred to the cleaning roller 49 side by a high-speed airflow H. Furthermore, the air on the plate inlet side becomes an induced airflow 9 due to the high-speed airflow G. The high-speed airflow G and H and the induced airflow, g and h, are the suction chamber tone and 56
Collection chamber 74 via duct hoses 72 and 73
and return to Turbo Prower 60.

FIG. 5 is a system diagram of airflow, and the outside air enters from the plate inlet side in balance with the exhaust gas EX1 coming out of the exhaust hole 75 of the branch chamber 67 and the exhaust gas EX2 coming out of the plate outlet group. If this exhaust EX does not exist, the induced air currents g and h will be generated by the high-speed blowing air currents from the nozzles 50 and 51, but since there is no place for the incoming air to escape, some of it will go in and out at the point where it entered. flow backwards. For this reason EXl
It is important to take By accelerating the flow of outside air ■ to y, it becomes a medium-speed duct just before the 5 nozzle 50, and as a result, the high-speed airflow that conventionally blew away the plated dust leaked out of the machine. was able to be prevented. In addition, the dust does not flow backward and is drawn into the negative pressure suction chamber 57 with the help of the force of the blowing speed IW from the nozzle 50. On the plate outlet side, the induced airflow from inside the clean channel chisel 71 is directed toward the nozzle 51. Since it is flowing, it is possible to prevent leakage to the outside of the machine and to the clean chamber side.

In addition, in order to use multiple small hole blowouts, expansion and diffusion chambers, and induced airflow, a separate sirocco fan for small wind speeds was previously required, but this is no longer necessary.
I ended up finishing with Tar Bobrova.

The cleaning roller 49 and the high-speed blowout 1 to nozzle 51 are close to each other, and the fact that there is no feeder between them and the clean induced air flow prevents dust from re-adhering to the plate after passing through the cleaning roller. prevented.

Depending on the material η of the plate, it may be charged with static electricity.

A corona discharge electrode 59 may be provided in the clean chamber 71 to prevent dust from adhering to the plate due to static electricity. Since the corona discharge electrode functions similarly to the dust collection electrode of an electric dust collector, dust adheres to the electrode, so to prevent this, it is placed in a clean chamber 71 filled with clean air that has passed through a HEPA filter. A corona discharge electrode is provided. In addition, when the clean air flow induced from the clean chamber 71 passes through the discharge electrode, it becomes an ion wind, reaches the dust on the cleaning roller 49 and the plate, and eliminates static electricity, thereby increasing the degree of cleaning.

For manufacturing reasons, it may be necessary to pass the plate through the production line while it is heated to a certain temperature.
Plate cleaning devices have the problem of blowing high-speed airflow onto the plates, which lowers the temperature of the plates and causes them to shatter. In order to prevent this, a heater 77 is provided in the diversion chamber 67 to increase the temperature of the air blown out in advance.

Furthermore, if the cleaning roller 49 is made detachable from the drive shaft 78, it can be replaced with a new roller or with another cleaning means.

Further, if the feed roller 15 is made of a conductive rubber roller, it becomes a ground, and static electricity on the plate can be grounded.

Figure 6 shows a conductive brush 8 on the roller width υ as a cleaning means.
1 attached, otherwise the parts are exactly the same, and the same reference numerals represent the same parts.

Effects Since the plate cleaning device of the present invention has such a configuration, it does not emit dusty air outside the device, prevents the plate from being recontaminated by dust scattered inside the device, and requires only one blower, so it can be used in conjunction with a blower. Only one filter system is required,
Cost reduction and device miniaturization can be achieved. Furthermore, the end face of the root can be cleaned, there is no need to clean the 11 corona emitters, the temperature of the plate does not drop, and the cleaning ability of the cleaning roller can be maintained constant even if the thickness of the plate changes. It has the effect of

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of an embodiment of the plate cleaning device of the present invention, Fig. 2 is a view taken in the Y-Y direction of Fig. 1, and Fig. 3 is a view taken in the Z-2 direction of Fig. 1. , FIG. 4 is an enlarged view of the upper part of FIG. 2, FIG. 5 is a system diagram of airflow in the device of the present invention, FIG. 6 is an explanatory diagram of another embodiment, and FIG. 7 is a side cross-section of the conventional device. 8 is a Y-Y direction arrow view of FIG. 1, and FIG. 9 is an enlarged view of the upper part of FIG. 8. Explanation of symbols 1: High-speed blowout nozzle 2: Plenum duct 3: HEPA filter 4:
Prefilter 5: Plenum Champer 6: Partition
11: Cleaning roller 12: Cleaning roller shaft 13: Sponge-like rubber portion 14: Nonwoven fabric
15: Feed υ roller 16: Feed roller shaft 21: Air supply duct 22: Perforated plate 23: Air supply duct 24
: Perforated plate 25: Suction duct 26: Suction hole
27: Perforated plate 28: Suction duct 29
: Suction hole 30: Turbo/lower 31: Duct 32:
Sirocco fan 33: Duct 34, 35, 36
, 37: Duct hose 38 two collection chambers 4
1: Casing housing 42: Beam switch 43: Caster 44 Double level adjuster 45: Power distribution board, operation panel 46: Variable speed motor 47: Outside air intake perforated plate 48: Casing housing 49: Cleaning roller 50: High speed blowing nozzle 51: High-speed blowout nozzle 52: Static elimination brush 53: Air supply chamber 5
4: Suction chamber 55: Air supply chamber 56: Suction chamber 57: Expansion chamber 58 Nibrate outlet 59: Poles corona discharge 6o=Turbo roller 61: Cleaning roller drive motor 62: Feed roller drive motor 63: Duct hose 64: Plenum chamber 65
:Bre filter 66:HEPA filter 67:
Diversion chamber 68: Duct hose 69: Duct hose 70: Expansion hole 71: Clean chamber 72
, 73: Duct hose 4 collection chamber 7
5: Exhaust hole 76: Cleaning roller interval adjustment mechanism 77: Heater 78: Shaft 80: Brush agent Patent attorney (8107) Kiyoshi Sasaki Takashi (and 2 others)
Figure 7 Figure 8

Claims (9)

[Claims] (1) A plate cleaning device installed in a plate manufacturing line has a pair of high-speed air blowing nozzles on the top and bottom sides of the plate that sandwich the cleaning means and blow out diagonally forward and diagonally backward with respect to the direction of plate movement. A plate cleaning device that blows out high-speed clean air and has a clean area on the exit side that blows out clean air at a low speed, both of these airs are circulated by a blower, and the plate is fed by a feed roller. . (2) The plate cleaning device according to claim 1, wherein the cleaning means is a cleaning roller. (3) The plate cleaning device according to claim 1, wherein the cleaning means is a fixed conductive cleaning brush. (4) The plate cleaning device according to claim 1, characterized in that a static elimination plan is provided on a side portion of the plate for cleaning the end surface of the plate. (5) Claim 1, characterized in that a corona discharge electrode for removing static electricity is provided in the clean area.
Plate cleaning device as described in section. (6) The plate cleaning device according to claim 1, further comprising a heater for preheating the air blown from the high-speed air blowing nozzle. (7) The plate cleaning device according to claim 1 or 2, further comprising a mechanism for adjusting the interval between the cleaning rollers. (8) The plate cleaning device according to claim 1 or 2, wherein the cleaning roller shaft is detachably supported by a drive shaft. (9) The plate cleaning device according to claim 1, wherein the feed roller is a conductive rubber roller.