JPH09103748A - Disk washer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To quickly and surely remove a solid matter such as polishing powder from the surface of an annular member to outside during washing and thereby prevent the surface from being damaged by rotating a brush in such a state that the solid matter is stuck. SOLUTION: When a brush 12 constituting a roll brush 10 is rotated while being abutted on a disk 1, the brush 12 is slid over the disk 1, thereby stains and foreign matter stuck on the surface of the disk 1 are removed. Besides, the brush 12 is provided with a spiral groove 35 on the outer peripheral surface thereof, and when a washing liquid is fed from the inside of brush 12, while the brush 12 of the roll brush 10 is abutted on the disk 1 and is rotated, the flow of the washing in the axial direction of the roll brush 10 is formed and the solid matter is carried following the flow of the washing liquid and is transferred to the inside or outside diameter side of the disk 1 and is discharged to outside.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk cleaning device for cleaning a magnetic disk, an optical disk and other annular members.

[0002]

2. Description of the Related Art Since a magnetic disk manufacturing process includes a surface polishing process and the like, cleaning is frequently performed before and after the coating of a magnetic coating film. As a cleaning method for this magnetic disk, an ultrasonic cleaning method, a brush cleaning method, etc. are known. Among them, the brush cleaning method is a method in which a brush is brought into contact with the surface of the disk while the disk is being rotated, and the cleaning liquid is supplied to the brush to make sliding contact with the surface of the disk. Remove the oil film.

Brushes used in the brush cleaning system include disk-shaped brushes, cup-shaped brushes, roll brushes and other structures. In either case, the brush is rotated, and the disk is rotated or the disk is driven to rotate following the rotation of the brush.
For the roll brush, fit a brush such as sponge on the rotating shaft.
It is fixedly provided, and the rotary shaft is connected to the drive means or is rotatably supported. The total length of the brush is longer than the width from the inner diameter to the outer diameter of the disc. The disc is rotatably chucked at its outer diameter portion or inner diameter portion, and is brought into contact with the brush so as to cover the entire width thereof while the brush is directed in the radial direction. Here, if the brush is brought into contact with both the front and back surfaces of the disc and the rotary shaft is driven to rotate, the brush is rotated,
The brush slides on the disc, and the sliding of the brush on the disc drives the disc to rotate. Further, when the disk is driven to rotate by the spindle, the brush is rotatably supported so that the brush also rotates following the rotation of the disk.
The cleaning liquid can be supplied from the outside of the brush or from the inside of the brush, so that both the front and back surfaces of the disk are simultaneously and thoroughly cleaned.

[0004]

The dirt adhering to the disk includes non-solid matter such as an oil film and fine powdery solid matter such as polishing powder. Contamination due to non-solid matter can be smoothly removed by sliding the brush on the disk surface.
Further, the solid matter is also separated from the surface of the disk by sliding the brush into contact therewith, and is discharged to the outside by the flow of the cleaning liquid. However, since the brush only makes a rotational motion, if solid matter adheres to the brush, it will come into contact with the disk again when the brush makes one revolution. When the solid material comes into the brush due to the pressing force of the brush against the disk, each time the brush rotates once,
This solid material is pressed against the surface of the disk, causing scratches and the like.

The present invention has been made in view of the above points, and an object thereof is to wash solids such as abrasive powder from the surface of the annular member when cleaning the annular member with a roll brush. The object is to be able to remove the object to the outside quickly and surely and to prevent the surface of the annular member from being scratched.

[0006]

In order to achieve the above-mentioned object, according to the present invention, a roll brush is slidably contacted with an annular member to rotate the annular member while supplying a cleaning liquid. This is for cleaning the surface of an annular member, and is characterized in that a spiral groove is formed on the outer peripheral surface of this brush.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION When a roll brush is brought into sliding contact with the surface of an annular member to wash it, if solid matter adheres to the brush, the solid matter is held once by the brush and makes one revolution. It will come into contact with the disc again, especially if solids do not leave the brush and bite into it,
Each time the brush makes one rotation, this solid substance makes sliding contact with the disk, and scratches or the like are produced on the surface of the disk although they are minute.

When a solid substance adheres to the brush, a force is applied to move the solid substance in the axial direction of the brush without holding it. As a result, the solid matter can be quickly discharged to the outside without being bitten by the brush. For this purpose, a flow is created in the cleaning liquid supplied at the time of cleaning, and the solid matter is transported to this flow. Even if the flow of the cleaning liquid is formed in the direction orthogonal to the rotation axis of the brush, it has no significant meaning in terms of removing solid matter attached to the brush.
It is necessary to create a flow that is oriented in the direction of the axis of rotation of the brush.

During cleaning, the disc is generally held in a vertical state by chucking the inner or outer diameter by a chuck member, and the roll brush is generally arranged so as to extend in the horizontal direction. Therefore, in the present invention, a spiral groove is formed on the outer surface of the brush forming the roll brush. As a result, when the roll brush is brought into contact with the annular member and is rotated while directly supplying the cleaning liquid or following the disc while supplying the cleaning liquid, the supplied cleaning liquid has a flow in the direction along the groove. The cleaning liquid thus formed flows in the direction of the axis of the rotating shaft of the roll brush. At the time of cleaning, even if solid matter is transferred from the annular member to the brush and adheres to this brush, this solid matter is conveyed to the flow of the cleaning liquid formed by the groove provided in the brush, and the inner diameter side of the disk or Since it moves toward the outer diameter side, it does not bite into the brush, it is quickly and smoothly discharged to the outside, and there is no inconvenience of causing scratches or the like on the annular member.

In order to rotate the roll brush, the rotary shaft of the roll brush may be connected to a rotary drive means such as a motor so that the roll brush is directly rotated. When the roll brush is driven to rotate, the disk follows the rotation. On the contrary, it is also possible to mount the disk on a spindle and drive the disk to rotate by this spindle. When the disc is rotated, the rotational force is transmitted to the roll brush that is in sliding contact with the surface of the disc, and the roll brush follows and rotates. Whichever method is used, the cleaning liquid is supplied to the roll brush, but the cleaning liquid can be supplied in the form of a shower from the outside, but instead of this or with the supply of the cleaning liquid from the outside, the rotation of the roll brush is performed. It is preferable that a cleaning liquid supply path is provided on the shaft so that the cleaning liquid is flown out from the inside of the brush via the rotary shaft. As a result, the cleaning liquid supplied from the inner side of the brush promotes the flow in the direction along the spiral groove, so that solid matters can be more reliably removed, and the cleaning liquid is immediately discharged after coming into contact with the brush. Rather, since it is retained to some extent while flowing along the spiral groove, a small amount of cleaning liquid enables efficient cleaning.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. Therefore, FIGS. 1 to 4 relate to the first embodiment, and FIG. 5 relates to the second embodiment. In the first embodiment, FIG. 1 shows the entire structure of the cleaning device, FIG. 2 shows the cross section of the roll brush, FIG. 3 shows the roll brush in the cleaning state, and FIG. 4 shows the structure of the rotary drive mechanism of the roll brush. , Respectively.

First, in FIG. 1, reference numeral 1 denotes a disk composed of a magnetic disk or an optical disk as an annular member, and the disk 1 has an outer diameter portion from three chuck pieces 2a, 2b, 2c. Is rotatably supported by the chuck means. Here, the three chuck pieces 2a-
Of the 2c, the chuck piece 2a provided at the upper position is a movable chuck piece, and the other two chuck pieces 2b and 2c are fixed chuck pieces. The movable chuck piece 2a is driven by a driving means such as a cylinder or a cam, and the position of the solid line (chuck position) and the position of the virtual line (chuck release position) in the figure.
It can be displaced between and.

Therefore, the disc 1 to be cleaned is brought into contact with the chuck pieces 2b and 2c by an appropriate handling means with the chuck piece 2a in the chuck release position, and the chuck piece 2a is lowered to chuck. When the disc 1 is chucked by the three chuck pieces 2a to 2c by being displaced to the position, the handling means is retracted. As a result, the disc 1 is rotatably supported by the chuck means. Where disk 1
In the state of being chucked by the chuck pieces 2a to 2c, the posture is vertical.

Next, 10 is a pair of roll brushes. As is apparent from FIG. 2, the roll brush 10 is fitted and fixed with a brush 12 made of sponge or the like formed in a cylindrical shape on the rotating shaft 11. This brush 1
The axial length of 2 is longer than the radial width of the disk 1, that is, the length from the inner diameter to the outer diameter. It should be noted that the roll brush, the rotary shaft, and the brush are made up of a pair, and are in contact with both the front and back surfaces of the disk 1. When referring to the front and back roll brushes individually, the respective symbols are [a]. And the subscripts of [b]. Thus, as shown in FIG. 3, the roll brush 10
a and 10b respectively extend in the horizontal direction from the outer diameter side of the disc 1 toward the center, and abut on the front surface side and the back surface side of the disc 1, and the disc 1 is, as shown in FIG. It is sandwiched by both roll brushes 10a and 10b.

A portion of the roll brush 10 on the base end side of the rotary shaft 11 is rotatably inserted into a bearing unit 13. The bearing unit 13 is connected to a rotary shaft 14 and a driving means such as a motor or a cam. Is connected to an arm 16 vertically provided on a rotating block 15 which is reciprocally rotated by a predetermined angle.
Of the pair of roll brushes 10, as is apparent from FIG. 4, the rotary shaft 11 on the surface side roller brush 10a side.
The reference character “a” extends through the bearing block 13, a driven pulley 17 is attached to the tip thereof, and a drive gear 18 is attached to a portion between the driven pulley 17 and the bearing block 13. On the other hand, the back side roll brush 10b
The rotary shaft 11b of the driven gear 19 extends through the bearing block 13 and has a driven gear 19 meshing with the drive gear 18 at its end.
Is installed. Further, a motor 20 is mounted on the rotation block 15, and the drive shaft 2 of the motor 20 is attached.
A drive pulley 21 is attached to the drive pulley 0a, and a transmission belt 22 is wound around the drive pulley 21 and the driven pulley 17. As a result, when the motor 20 is operated, the roller brush 10a on the front surface side rotates and the roller brush 10b on the rear surface side rotates in the opposite direction.

By placing the rotary block 15 in the state shown by the phantom line in FIG. 1, the disc 1 can be transferred from the handling means to the chuck pieces 2a to 2c, and the state shown by the solid line in FIG. When displaced to
The brushes 12a and 12b of the roll brushes 10a and 10b are in contact with both the front and back surfaces over the entire length in the radial direction thereof. Then, when the motor 20 is operated to rotationally drive the rotary shafts 11a and 11b of the roll brushes 10a and 10b, the roll brushes 10a and 10b rotate in mutually opposite directions, as indicated by arrows in FIG. As a result, the disk 1 slides on both front and back surfaces. The disk 1 is rotationally driven by the rotation of the roll brushes 10a and 10b.
Even if the disc 1 does not have a special drive mechanism, the entire surface of the disc 1 can be brush-cleaned thoroughly. The disc 1 may be connected to an independent rotation drive means.

At the time of cleaning the disk 1, a cleaning liquid is supplied. There are two supply paths for this cleaning liquid. First, the first supply path supplies the cleaning liquid from the outside toward the sliding contact surface of the brush 12 of the roll brush 10 of the disc 1, and the second supply path supplies the cleaning liquid inside the brush 12. To do. In order to supply the cleaning liquid from the outside, as shown in FIG. 1, a cleaning liquid nozzle 30 attached to an appropriate portion is used. A swivel joint 31 is connected to the end of the rotary shaft 11 in order to supply the cleaning liquid to the inside of the brush 12. The swivel joint 31 allows the rotary shaft that rotates from the fixed-side cleaning liquid pipe 32 during cleaning. A cleaning liquid can be supplied to 11.

The cleaning liquid supplied from the cleaning liquid pipe 32 by the swivel joint 31 is supplied into the cleaning liquid passage 33 extending in the axial direction of the rotary shaft 11 as is apparent from FIG. Then, in the cleaning liquid passage 33,
One end of the large number of ejection paths 34 is open, and the ejection paths 3
The other end of 4 is open to the peripheral barrel surface of the rotating shaft 11. The jet passage 34 extends over substantially the entire length of the portion of the rotating shaft 11 where the brush 12 is fitted, and in the circumferential direction,
It is provided over substantially the entire circumference, such as every 0 ° or every 60 °.

With the above construction, the rotary block 15 is displaced to the position shown by the phantom line in FIG. 1, the disk 1 is chucked by the chuck pieces 2a to 2c, and then the rotary block 15 is shown by the solid line. The brush 12 of both roll brushes 10a and 10b is displaced to the position shown by
The disk 1 is held by a and 12b. Here, the pressing force is exerted so that the brushes 12a and 12b are flattened to some extent when the disk 1 is held by the brushes 12a and 12b. Thereby, the brushes 12a, 1
The surface 2b is in surface contact with both sides of the disk 1 with a predetermined width.
In this state, the motor 20 is operated to rotate the rotating shaft 11a,
11b is rotationally driven, and the cleaning liquid is supplied from the cleaning liquid nozzle 30 to the sliding contact portion between the brushes 12a and 12b and the disk 1, and the cleaning liquid is also supplied from the cleaning liquid pipe 32 to the cleaning liquid passage 33 via the swivel joint 31. , Spout 3
4, the cleaning liquid is supplied into the brushes 12a and 12b.

The rotation of the roll brush 10 causes the brush 12 to slide on the disk 1, thereby removing dirt and foreign matter adhering to the surface of the disk 1. Further, the rotational force of the roll brush 10 is the chuck piece 2a.
Since it is transmitted to the disk 1 which is rotatably chucked by ~ 2c, the disk 1 can be rotated even if it is not connected to any special driving means, so that the entire front and back surfaces of the disk 1 are thoroughly brush-cleaned. It

Here, the brush 12 of the roll brush 10 is provided with a spiral groove 35 on the outer peripheral surface thereof. The groove 35 is for causing the flow of the cleaning liquid, and the groove 35 has a predetermined groove width, depth and pitch. The groove width and the pitch are not particularly limited, but are appropriately set from two viewpoints of forming a flow of the cleaning liquid and ensuring a sliding contact area of the brush 12 with the disk 1. That is, if the groove width is wide and the pitch is short, the flow of the cleaning liquid can be formed more reliably.
The sliding contact area of the disk 2 with the disk 1 is reduced. When the groove width is made narrow and the pitch is made long, the contact area of the brush 12 becomes large, but the flow of the cleaning liquid becomes weak. As for the groove width and pitch, at what stage the cleaning of the disk 1 is performed,
Etc. based on the above. Also, when cleaning, brush 12
Is pressed to the disk 1 and bends to some extent, but even if the brush 12 is bent in this way, the groove depth is large enough to form a space between the surface of the disk 1 and the groove bottom of the groove 35. It is necessary to let it.

Thus, by forming the spiral groove 35 on the outer peripheral surface of the brush 12 constituting the roll brush 10, the brush 12 of the roll brush 10 is brought into contact with the disk 1 and is rotated. When the cleaning liquid is supplied from the inside of the brush 12, the cleaning liquid forms a flow in the axial direction of the roll brush 10. Even if a fine powdery solid substance such as polishing powder adheres to the disk 1, this solid substance is conveyed to the flow of the cleaning liquid, and the brush 12
It does not remain attached to the. Therefore, the solid matter is quickly and surely conveyed to the inside of the inner diameter of the disc 1 or the outside of the outer diameter thereof according to the rotating direction of the roll brush 10, and is discharged to the outside. Therefore, it is possible to reliably prevent the inconvenience that scratches or the like are generated on the surface of the disk 1 due to the solid matter being attached to the brush 12 and coming into contact with the surface of the disk 1 again after one rotation.

Further, the cleaning liquid flows in the axial direction of the roll brush 10, but at the time of cleaning, the disk 1 is held in the vertical state and the roll brush 10 is extended in the horizontal direction. The cleaning liquid can be held by the roll brush 10 due to the formation of such a flow, which enables more efficient cleaning with a small amount of cleaning liquid.

Next, FIG. 5 shows a second embodiment of the present invention. In this embodiment, the disk 1 is configured to be rotationally driven. In the figure, reference numeral 40 denotes a spindle, and a clamp member 41 is detachably connected to the spindle 40. The inner circumference of the disk 1 is fitted to the spindle 40. The disc 1 can be fixedly held by fitting the clamp member 41 to the spindle 40. Therefore, when the spindle 40 is driven to rotate, the disk 1 also rotates with it.

The roll brushes 42 are composed of a pair, and these roll brushes 42 are arranged so as to come into contact with and separate from both front and back surfaces of the disc 1. The roll brush 42 is formed by mounting a brush 44 on a rotating shaft 43, and a spiral groove 45 is formed on the outer peripheral surface of the brush 44. Rotating shaft 43
Are rotatably supported by bearings 47 on arms 46 which are displaceable in the directions of approaching and separating from each other. here,
The roll brush 42 is the roll brush 10 of the first embodiment.
Similarly to the above, the cleaning liquid is supplied from the inside, and for this reason, the rotary shaft 43 is composed of a hollow member whose end is closed, and a cleaning liquid passage (not shown) is formed inside thereof.
Through the swivel joint 48 to the cleaning liquid pipe 49.
Is connected. Further, a large number of ejection paths are provided in the peripheral body portion of the rotating shaft 43. The supply path of the cleaning liquid to the roll brushes 42 is not particularly different from that of the first embodiment described above, and therefore its illustration and detailed description are omitted.

As described above, when the roll brush 42 is rotatable and the disk 1 is rotationally driven by the spindle 40, the disk 1 is rotationally driven during cleaning.
The roll brush 42 follows and rotates. Then, by rotating the roll brush 42, the brush 44
By the action of the spiral groove 45 provided on the outer peripheral surface of the roller, a flow of the cleaning liquid is formed in the axial direction of the roll brush 42, and fine powder-like solid matter such as polishing powder adhering to the disk 1 changes in the flow of the cleaning liquid. It can be transported and discharged smoothly.

[0027]

As described above, according to the present invention, when the brush of the roll brush is rotated while being in contact with the annular member, the annular member is washed.
Since it is configured to form a spiral groove on the outer surface of the brush,
During cleaning, solid substances such as polishing powder can be quickly and reliably removed from the surface of the annular member, and the brush rotates while the solid substance adheres to the surface of the annular member to prevent scratches. There is an effect such as prevention.

[Brief description of the drawings]

FIG. 1 is a structural explanatory view showing an overall structure of a disk cleaning device according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of a roll brush.

FIG. 3 is an explanatory view of the action of a roll brush.

FIG. 4 is a structural explanatory view of a drive mechanism of a roll brush.

FIG. 5 is an explanatory diagram of a main part configuration of a disk cleaning device according to a second embodiment of the present invention.

[Explanation of symbols]

 1 Disc 2a-2c Chuck piece 10, 10a, 10b, 42 Roll brush 11, 11a, 11b, 43 Rotating shaft 12, 12a, 12b, 44 Brush 20 Motor 31, 48 Swivel joint 32, 49 Cleaning liquid piping 33 Cleaning liquid passage 34 Jet Road 35,45 Groove 40 Spindle 41 Clamping member

Claims (4)

[Claims] 1. An apparatus for cleaning the surface of an annular member by rotating the annular member while sliding a roll brush on the annular member and supplying a cleaning liquid to the outer peripheral surface of the brush. A disk cleaning device having a spiral groove. 2. The disk cleaning apparatus according to claim 1, wherein a cleaning liquid supply passage for supplying a cleaning liquid from the inside of the rotary shaft of the roll brush to the inside of the brush is provided. 3. The roll brush is attached to a rotary shaft,
2. The disk cleaning apparatus according to claim 1, wherein when cleaning the annular member, the roller brush is rotationally driven to rotationally drive the annular member. 4. The annular member is attached to a spindle, and the spindle is rotated during cleaning, whereby the annular member is rotationally driven and the roll brush is rotated in a follow-up manner. The disc cleaning device according to claim 1.