JPH0447837Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention simultaneously demagnetizes a magnetic medium and removes dust on the surface, which is used in a magnetic disk refreshing device, especially an inspection device for the air-magnetic characteristics of a magnetic disk. The present invention relates to a magnetic disk refreshing device.

[Conventional technology]

As a conventional technique, for example,
There is a technique for cleaning magnetic disks, as shown in No. 63410.

Conventional magnetic disk cleaning technology uses a swing arm that has a U-shaped cleaning cloth on each inner surface and a plurality of air outlets and suction ports on both sides of the cleaning cloth, and a swing arm that is fixed to and supported by the swing arm. It is configured to include a shaft rotatably fitted to the base and an actuator that rotates the shaft.

Next, a conventional magnetic disk cleaning mechanism will be described in detail with reference to the drawings.

FIG. 3 is a partial sectional view showing an example of a conventional magnetic disk cleaning mechanism. Figure 4 is the first
It is an AA sectional view of the figure.

A cleaning cloth A13 and a cleaning cloth B are attached to each inner surface of the U-shaped swing arm 12.
14, is attached, and cleaning cloth A1
3. A plurality of air outlets 15 15b, 15c, 15d and suction ports 16a, 16b, 16c, 16d are provided in the left and right direction with the cleaning b14 as the center. The shaft 17 is fixed to the swing arm 12 and rotatably attached to the support base 18. Actuator 19 is a motor connected to shaft 17 . The magnetic disk 10 is attached to a flange 21 fixed to a spindle 20. The cap 22 holds down the magnetic disk.

Next, the operation will be explained.

The magnetic disk 10 attached to the flange 21 of the spindle 20 is rotated. Next, actuator 1
9 rotates the swing arm 12. The cleaning cloths 13 and 14 attached to the U-shaped inner surface of the swing arm 12 are attached to the magnetic disk 10.
Rotate while touching both sides of the This operation removes dust adhering to the surface of the magnetic disk 10.

At this time, 15b and 15 of each air outlet 15
Compressed air is blown out from c and 15d to blow away dust on the surface of the magnetic disk 7. Further, the dust blown off from the surface of the magnetic disk is successively suctioned by suction through the suction ports 16a, 16b, 16c, and 16d located next to the air outlet.

[Problem that the invention attempts to solve]

The above-mentioned conventional magnetic disk cleaning technique has the drawback that since the cleaning cloth is brought into contact with the surface of the magnetic disk, the dust once removed may damage or stain the magnetic disk.

Another disadvantage is that it requires a lot of processing because it has a plurality of blow-off ports and suction ports, and also requires a vacuum pump to perform suction, making it expensive.

Since the conventional magnetic disk cleaning mechanism described above does not have a function of demagnetizing the magnetic disk, it is necessary to provide a separate mechanism for demagnetizing the disk.

[Means for solving problems]

The magnetic disc refreshing device of this invention is
N and S poles are vertically opposed on both U-shaped tip surfaces,
and three magnets each arranged so that adjacent poles are different from each other, an air supply hole through which compressed air passes, an arm having a vertically opposing outlet at its tip, and an actuator that moves the arm horizontally and linearly. and a clean air generator that sends clean compressed air to the outlet.

〔Example〕

Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a partially cutaway front view showing an embodiment of the present invention.

FIG. 2a is a sectional view taken along the line AA in FIG. 1, and FIG. 2b is an enlarged view of section B in FIG.

The magnetic disk refreshing device shown in Fig. 1 has two blowout holes 1a and b that emit clean compressed air inside, and has an arm 4 having permanent magnets 2 and 3 at its tips, and an arm 4 that is arranged on the left and right sides. The device includes a motor 6, a belt 7, a pulley 8, a slider 9, and a clean air generator for discharging clean air from the blow-off holes 1a, b, which are attached to the housing 5 for movement.

Next, the operation and effects will be explained.

By rotating the pulley 8 with the motor 6 and moving the belt 9, the slider 9 and the arm 4 connected to the slider 9 move the magnetic disk 10 toward the inner circle. Next, rotate the magnetic disk.
(When the magnetic disk refreshing device of the present invention is used in a magnetic disk inspection device, the magnetic disk is fixed to the inspection device and the spindle, and the spindle is rotated.) As shown in Figure 2a, three disks each are placed on the top and bottom. magnet 2
Since the magnets 1a, b, c, 3a, b, c are attached to the tip of the arm 4, when the magnetic disk 10 rotates and moves in the direction of the arrow, the magnets 1a, b, c, 2
The magnetic disk 10 is demagnetized by the magnetic fields a, b, and c. Moreover, when clean compressed air is sent from the clean air generator 11 to the blow-off holes 1a and b,
Dust on the surface of the magnetic disk 10 is removed.

Next, when the arm 4 is moved in the direction of the arrow in FIG. 2b, the entire surface of the magnetic disk 10 is demagnetized and dust is removed.

[Effect of idea]

The magnetic disk refreshing device of the present invention is effective in demagnetizing the magnetic disk and removing dust in a single operation. Furthermore, unlike the conventional method of bringing a cleaning cloth into contact with the magnetic disk to remove dust, there is no possibility of damaging the magnetic disk.

When the magnetic disk refreshing device of the present invention is installed in a magnetic disk inspection device, the magnetic disk refreshes in one operation before inspection, so inspection can be performed without being affected by the magnetic field or dust in the previous process. effective. Further, even when the inspection is automated, one operation is completed while the spindle starts rotating and the rotation stabilizes, so the takt time does not increase due to the provision of the magnetic disk refreshing device of the present invention.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway front view showing an embodiment of the present invention, Fig. 2a is a sectional view taken along line A-A in Fig. 1, and Fig. 2b is
1 is an enlarged view of section B in FIG. 1, FIG. 3 is a partial sectional view of the conventional example, and FIG. 4 is a sectional view taken along line AA in FIG. 1...Blowout hole, 2...Magnet, 3...Magnet, 4...
...Arm, 5...Housing, 6...Motor, 7
...Belt, 8...Pulley, 9...Slider, 1
0...Magnetic disk, 11...Clean air generator, 12...Swing arm, 13...Cleaning cloth a, 14...Cleaning cloth b, 15
a, b, c, d...Air outlet, 16a, b, c, d
...Air outlet, 17...Shaft, 18...Support stand, 19
... Actuator, 20 ... Spindle, 21
...Flange, 22...Cap.

Claims (1)

[Scope of utility model registration request] The upper and lower magnets are arranged such that the N and S poles face each other vertically and the adjacent poles are different on both end surfaces of the U-shape. An arm having an outlet at its tip through which compressed air supplied to the child flows out, an actuator that moves the arm horizontally and linearly, and a clean air generator that sends clean compressed air to the outlet. A magnetic disc refreshing device featuring: