JPH1190358A - Disk washing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disk washing device which is capable of efficiency executing disk washing work, is simple in structure and is formable to a smaller size. SOLUTION: The disk washing device having a supporting means 1 which supports the disk on its outer periphery and supports the disk rotatably in a circumferential direction, a rotational driving means 2 which rotates the disk D supported by the supporting means 1 and a rotary brush 30 which washes the disk D by rotating in the state of being bought into pressurized contact with the flank of the disk D rotated by the rotational driving means is adopted. Particularly, the rotary brush 30 is arranged to offset in parallel outward in a radial direction from the center of the disk D and is further supported rotatably in the offset direction as a rotating direction in such a manner that the rotary brush is brought into sliding contact with the inner peripheral surface D, constituting the hole at the center of the disk D.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk cleaning apparatus for cleaning a polished disk in a process of manufacturing a magnetic disk or an optical disk.

[0002]

2. Description of the Related Art A magnetic disk such as a hard disk, which is a familiar storage medium for a computer, is formed by processing a material such as a metal plate such as aluminum, a glass plate, or a carbon plate into a disk shape (hereinafter, referred to as a disk). It is manufactured by forming a magnetic recording layer on both sides.
This manufacturing process includes a cleaning step of cleaning the disc whose front and rear surfaces have been polished.

In this cleaning step, in order to form the magnetic recording layer without hindrance, in the polishing step, foreign substances such as abrasive powder and dirt such as oil film adhered to the front and back surfaces of the disk are removed, and the disk is cleaned. Operation has been performed.
If any foreign matter or dirt adheres to the surface of the disk, the formation of a smooth magnetic recording layer is hindered, and as a result, writing and reading of information is greatly affected. Thus, keeping the disk in a clean state is very important for improving the quality of the magnetic disk as a recording medium.

As a cleaning method in the cleaning step, direct cleaning with a brush is generally adopted. First, the side surface of the disk is cleaned by rotating the rotating brush provided with the substantially cylindrical brush portion in contact with the side surface of the disk and rotating the disk in the circumferential direction.
Next, the outer peripheral surface of the disk is cleaned by rotating the disk while another fixed brush is pressed against the outer peripheral surface of the disk. Further, the inner peripheral surface of the disk is cleaned by rotating the disk with another fixed brush pressed against the inner peripheral surface forming the hole in the center of the disk.

[0005] Incidentally, in the case of cleaning the respective sides, the outer peripheral surface and the inner peripheral surface of the disk as described above, it is necessary to change the position where the disk is held depending on the part to be cleaned. For example, when cleaning both side surfaces and the outer peripheral surface, the hole at the center of the disk is chucked and the disk is rotated to clean the both side surfaces and the outer peripheral surface simultaneously. Then, when cleaning the inner peripheral surface, release the chuck at the center of the disc,
Chuck the outer peripheral surface of the disk and rotate the disk,
Clean the inner surface.

[0006]

When the disk is cleaned as described above, a plurality of different chuck mechanisms must be provided, and the structure of the cleaning apparatus becomes complicated, and the apparatus itself becomes large. I will. In addition, there is a problem in that the time required for the cleaning operation for one disk is increased by cleaning each part separately, and it is difficult to improve the working efficiency.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a disk cleaning apparatus which can perform a disk cleaning operation more efficiently, and has a simple structure and can be reduced in size. The purpose is.

[0008]

As means for solving the above-mentioned problems, as a means for supporting a disk to be cleaned, a supporting means for supporting the disk to be washed on its outer periphery and rotatably in the circumferential direction, and a disk supported by the supporting means. And a rotating brush for cleaning the disk by rotating in a state of being pressed against the disk rotated by the rotary driving means. In this disk cleaning device, the rotation axis of the rotating brush is
The disk is placed parallel to the center of the disk radially outward and offset, and the rotating brush is further rotated in the offset direction to bring the rotating brush into sliding contact with the inner peripheral surface of the hole in the center of the disk and rub the disk. Clean the inner surface as well as the side surface.

The rotating brush is arranged such that one end is located inside the hole in the center of the disk and the other end is located outside the outer edge of the disk, so that the rotating force of the rotating brush acts in the circumferential direction of the disk. It becomes possible to assist the rotational force of the disk.

[0010] The rotating brushes are arranged in pairs so as to sandwich the disk supported by the support means. This makes it possible to clean both sides of the disc at once.

A substantially cylindrical brush portion made of an elastic material is provided on the rotating brush, and a streaky projection is formed on the rotating brush along the length direction of the rotating brush. Thereby, the inner peripheral surface of the disk can be more effectively cleaned.

The rotation drive means is provided with a drive roller for rotating the disk by rotating while being pressed against the outer peripheral surface of the disk and simultaneously cleaning the outer peripheral surface by being pressed against the outer peripheral surface of the disk.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a disk cleaning apparatus according to the present invention will be described with reference to FIGS. As shown in FIG. 1, the disk cleaning device includes a support means 1 for rotatably supporting a disk D to be cleaned in a circumferential direction, a rotation driving means 2 for rotating the disk D supported by the support means 1, and Cleaning means 3 for cleaning both sides of the rotating disk D.

The supporting means 1 is a supporting roller 10 which abuts on the outer periphery of the vertically arranged disk D and supports the disk D.
It has. The support roller 10 has three different disks D.
The disc D is rotatably supported in a vertical plane because the disc D is rotatable.
Each support roller 10 can be approached and separated from the center of a preset arrangement position of the disk D, and when the disk D is transported to a predetermined arrangement position by a transport arm (not shown), The support roller 10 moves toward the center of the disposition position, and each comes into contact with the outer periphery of the disk D to rotatably support the disk D.

The rotation drive means 2 is provided with a drive roller 20 which is pressed against the outer periphery of the disk D rotatably supported by each support roller 10 and transmits its rotational force to the disk D to rotate. The drive roller 20 is mounted on the base 4
It is rotatably attached to the tip of a roller arm 22 that pivots along the vertical plane about a shaft member 21 fixed thereon, and is connected to a drive motor 23 via an endless belt 24, if necessary. It is designed to be driven to rotate. The drive roller 20 is made of a sponge similar to a rotary brush described later, and is configured to clean the outer peripheral surface by being pressed against the outer peripheral surface of the disk D.

As shown in FIG. 2, the cleaning mechanism 3 rotates while being pressed against the front and back sides of the rotating disk D supported at a predetermined position, and cleans the disk D by rubbing both sides. It has a pair of rotating brushes 30.
These rotating brushes 30 are, as shown in FIG.
The disk D is supported so as to be able to approach and separate from the front surface and the back surface of the disk D, respectively, and rotates while sandwiching the disk D from both sides.

The base 4 is provided with side plates 5 and 5 parallel to each other with the vertical plane interposed therebetween. The rotating brush 30 is attached to two shafts 31 and 32 provided between the side plates 5 and 5. One is installed on each of two slide blocks 33 that move along. Then, as the slide block 33 moves, the disk D approaches or separates from the front surface or the back surface of the disk D.

The slide block 33 has a configuration in which a plate 35 for supporting the rotary brush 30 is fixed above a plate 34 inserted into the shafts 31 and 32. These shafts 31, 3 movably supporting the slide block 33.
2, one end of the shaft 31 is fixed to the side plates 5 and 5, while the other shaft 32 is rotatably supported around the shaft, and has a gear 3 at one end penetrating the one side plate 5.
6 is attached, and is rotatably driven by a gear mechanism (not shown).

A boss gear 37 is attached to the plate 34 so as to be rotatable with the shaft 32 in combination with a spline provided on the shaft 32 and movable with the slide block 33 along the shaft 32.
Further, a rotating shaft 38 is disposed on the plate 34 in parallel with the shaft 32 and is rotatably supported. A gear 39 that meshes with the boss gear 37 is fixed to one end of the rotating shaft 38.
A bevel gear 40 is attached to the other end. On the other hand,
A rotating shaft 41 is disposed on the plate 35 in the vertical direction and is rotatably supported. A bevel gear 42 is attached to a lower end of the rotating shaft 41. Is transmitted to the rotating shaft 41.

The rotary brush 30 has its L _B (axis of the rotary shaft 41) the axis of rotation, the virtual rotation axis L when the disk D supported by the supporting means 1 as shown in FIG. 4 rotates in a vertical plane positions do not intersect as _D, i.e. the axis of rotation L _B is disposed at a position offset to one side along the surface direction of the disc D. This positional relationship is maintained unchanged even when the rotating brush 30 approaches or separates from the front and back surfaces of the disk D. Further, the rotating brush 30 has one end arranged inside the hole of the disk D and the other end arranged outside the outer edge of the disk D and supported.

The rotating brush 30 is mounted on a rotating shaft 41 projecting above the plate 35. Rotating brush 30
A sponge brush part 44 formed in a cylindrical shape is attached around a hollow inner cylinder 43 directly connected to the rotating shaft 41. On the outer peripheral surface of the brush portion 44, a plurality of streaky projections 45 are formed at regular intervals along the length direction of the rotating shaft 41. The protrusion 45 is provided on the rotating brush 30.
By rotating the disk D in the offset direction.
Is in sliding contact with the inner peripheral surface of

As shown in FIG. 4, one end of the cleaning mechanism 3 is fixed to the slide block 33a as a mechanism for moving the slide block 33a on which the rotating brush 30a is slidably brought into contact with the surface of the disk D. A rod 46 is provided, the end of which vertically penetrates the side plate 5 located on the back side of the disk D, and an air cylinder 47 which slides the rod 46 in the axial direction with respect to the side plate 5. .

The air cylinder 47 is integrated with the side plate 5 and supports the rod 46. The air cylinder 47 operates by receiving air supplied from air supply means (not shown).
A guide cylinder 4 is installed at the other end of the rod 46 in parallel with the rod 46 and regulates the moving direction of the rod 46.
A stopper 49 is provided in the moving direction of the rod 46 so as to abut a tongue piece 46a attached to the other end of the rod 46 to regulate the moving range.

Further, as a mechanism for moving the slide block 33b provided with the rotary brush 30b slidably in contact with the back surface of the disk D, one end is fixed to the slide block 33b and the other end is connected to the side plate 5 as shown in FIG. And a rod 50 disposed vertically through the rod 50.
Air cylinder 51 that slides in the axial direction with respect to the side plate 5
Are provided.

The air cylinder 51 is integrated with the side plate 5 and supports the rod 50. The air cylinder 51 operates by receiving air supplied from air supply means (not shown).
A guide cylinder 5 is installed at the other end of the rod 50 in parallel with the rod 50 and regulates the moving direction of the rod 50.
A stopper 54 is provided in the moving direction of the rod 50 so as to abut a tongue piece 53 attached to the other end of the rod 50 to restrict the moving range.

The operation of cleaning the disk D by the disk cleaning apparatus configured as described above will be described. First,
The disc D transported on the pass line by a transport arm (not shown) is arranged at the center of the support rollers 10 arranged on three sides. When these support rollers 10 are moved toward the rotation center O of the disk D, the respective support rollers 10 come into contact with the outer periphery of the disk D, and three different
The disk D is supported by the support roller 10 at the location. Further, when the transfer arm moves away from the disk D, the disk D is held rotatably in the circumferential direction while maintaining the original position because the support roller 10 is rotatable.

From this state, the driving roller 20 is driven to rotate, and the roller arm 22 is rotated toward the disk D, so that the driving roller 20 is pressed against the outer periphery of the disk D,
The disc D starts rotating while maintaining the original position. At this time,
When the drive roller 20 is pressed against the outer peripheral surface of the disk, it simultaneously acts as a brush for cleaning the outer peripheral surface, and dirt and foreign matters attached to the outer peripheral surface are scraped off and removed.

At the same time as the rotation of the disk D is started, the air cylinder 47 is operated, and the slide block 33a connected via the rod 46 approaches the disk D, and accordingly, the rotation provided on the slide block 33a is rotated. The brush 30a comes into contact with the surface of the disk D. At the same time, the air cylinder 51 operates, and the slide block 33b connected via the rod 50 approaches the disk D, and accordingly, the rotating brush 30b installed on the slide block 33b contacts the back surface of the disk D. Touched.

At the same time as the rotation of the disk D, the rod 32 is driven to rotate, and the rotating shafts 41 provided on the slide blocks 33a and 33b respectively rotate, and the rotating brushes 30a and 30b attached to the rotating shaft 41 start rotating. .
In addition, a cleaning liquid is supplied to the disk D from a nozzle (not shown). The disc D is rotated at a predetermined position, and the rotating brushes 30a, 30b
Is rubbed, and dirt and foreign matter adhering to both sides are
4 and removed.

At the same time, the rotation of the rotating brush 30 causes the inner peripheral surface D of the disk D to rotate as shown in FIG.
_The protrusion 45 is pressed against a, and the dirt and foreign matter attached to the inner peripheral surface are scraped off and removed.

According to the configured disk cleaning apparatus as above, the rotary brush 30 can be washed inner circumferential surface D _a well both sides of the disc D, the outer periphery of the disk D by the further drive roller 20 The surface can also be cleaned. Thereby, the working time in the cleaning step can be shortened and the working efficiency can be improved.

The disk D is also rotated by the rotating brush 30.
Since both sides and the inner circumferential surface D _a of the can simultaneously cleaned, it is possible to simplify the structure of the cleaning mechanism in comparison with the prior art.

By rotating the rotary brush 30 in the offset direction, the protrusions 45 formed on the brush portion 44 reach the inside of the hole of the disk D and rub over _a wide range of the inner peripheral surface Da, so that more effective. it can be cleaned of the inner peripheral surface D _a.

[0034]

As described above, according to the disk cleaning apparatus of the present invention, the rotary brush is arranged to be offset from the center of the disk radially outward and in parallel.
Furthermore, by rotating the offset direction as the rotation direction so as to be in sliding contact with the inner peripheral surface forming the hole in the center of the disk, the inner circumferential surface forming the hole in the center of the disk is rubbed with a rotating brush, so that the inner surface of the disk is The surface can be cleaned at the same time. As a result, different portions of the disk can be cleaned with one cleaning mechanism, so that the structure of the cleaning mechanism can be simplified as compared with the related art, and the cleaning device can be made compact. Further, since different portions of the disk can be cleaned at the same time, the operation time in the cleaning step can be shortened and the operation efficiency can be improved.

In addition, since one end of the rotating brush is arranged inside the hole in the center of the disk and the other end is arranged outside the outer edge of the disk, the rotating force of the rotating brush is applied in the circumferential direction of the disk. The rotational force of the disk can be assisted.

Further, by arranging the rotating brushes in pairs so as to sandwich the disk supported by the support means, both the front and back surfaces of the disk can be cleaned at one time, so that the work time in the cleaning process can be reduced. Efficiency can be improved.

Further, a substantially cylindrical brush portion made of an elastic material is provided on the rotating brush, and a streaky projection is formed on the brush portion along the rotation axis direction of the rotating brush. Can reach the depth of the disk hole, and the inner peripheral surface can be more effectively cleaned.

In addition, by imparting a brush function for cleaning the outer peripheral surface of the disk to a drive roller for rotating the disk as a rotary drive means, both the front and back surfaces and the inner peripheral surface of the disk are simultaneously cleaned. Thus, the working time in the cleaning step can be shortened and the working efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is a view showing one embodiment of a disk cleaning apparatus according to the present invention, and is a side view showing a disk support mechanism.

FIG. 2 is a cross-sectional view of a main part showing a disk cleaning mechanism.

FIG. 3 is a sectional view taken along line III-III in FIG. 2;

FIG. 4 is a sectional view of a main part showing a moving mechanism of one rotating brush.

FIG. 5 is a sectional view of a main part showing a moving mechanism of the other rotating brush.

FIG. 6 is an explanatory diagram showing a state of disk cleaning by a rotating brush.

[Explanation of symbols]

1 supporting means 2 rotation driving means 30a, 30b rotating brush L _D disk for a virtual rotation axis L _B rotary brush of the rotational axis 44 brush portion 45 projecting portion 20 driving roller D Disk

Claims (5)

[Claims] 1. A supporting means for supporting a disk to be washed on its outer periphery and rotatably supporting in a circumferential direction, a rotation driving means for rotating the disk supported by the supporting means, and a rotation driving means. A rotating brush for cleaning the disk by rotating while being pressed against a side surface of the disk to be rotated, the rotating axis of the rotating brush being directed radially outward from the center of the disk. So that they are offset parallel to each other, and slidably contact the inner peripheral surface that forms the hole in the center of the disk.
A disk cleaning device, which is rotatably supported with an offset direction as a rotation direction. 2. The rotating brush according to claim 1, wherein one end of the rotating brush is disposed inside a hole in the center of the disk, and the other end is disposed outside the outer edge of the disk. Disk cleaning equipment. 3. The disk cleaning device according to claim 1, wherein the rotating brushes are provided in pairs so as to sandwich the disk. 4. The rotary brush is provided with a substantially cylindrical brush portion made of an elastic body, and a plurality of stripe-shaped protrusions are formed on the brush portion along the length direction of the rotary brush. 4. The disk cleaning device according to claim 1, wherein the disk cleaning device is provided. 5. A drive roller for rotating the disk by rotating in a state of being pressed against the outer peripheral surface of the disk, and cleaning the outer peripheral surface by being pressed against the outer peripheral surface of the disk. 5. The disk cleaning apparatus according to claim 1, wherein the disk cleaning apparatus is provided.