JPH0660371A - Ultrasonic washer - Google Patents

Abstract

PURPOSE:To uniformly wash a disk as the whole by eliminating parts to which ultrasonic oscillation does not pass round at the time of ultrasonic washing of the disk. CONSTITUTION:Supporting rods 4a to 4c where many circular grooves 6 with which outer peripheral edge parts of disks D are engaged are formed are laid between front and rear end plates 2 and 3 of a magazine 1, and disks D are stood and stored in the magazine 1. Supporting rods 4a to 4c are extended up to the outside face on the side of one end plate 2, and gears 8a, 8b, and 8c engaged with a transmission gear 9 are connected to these supporting rods. When the magazine 1 is immersed in a tank main body 11 of an ultrasonic washing tank 10, the transmission gear 9 is engaged with a driving gear 15 to rotate the driving gear 15, and then, the transmission gear 9 rotates while following up the gear 15 to rotate the supporting rods 4a to 4c, and this torque is transmitted to disks D to rotate the disks D, and positions of contact parts to supporting rods 4a to 4c in outer peripheral edge parts of disks D are always changed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic cleaning device for ultrasonically cleaning a disk constituting a circular recording medium in the process of manufacturing a circular recording medium such as a magnetic disk.

[0002]

2. Description of the Related Art Disks constituting an annular recording medium, such as magnetic disks, are repeatedly washed in the manufacturing process. A typical cleaning method for this disk is scrubbing and cleaning with a brush or the like. There is ultrasonic cleaning performed by providing an ultrasonic vibration device in the tank and ultrasonically vibrating the liquid. In order to improve the efficiency of ultrasonic cleaning, a plurality of disks are usually immersed in the cleaning tank, and a magazine is used to keep the disks aligned in the tank. Then, a large number of discs are erected at a predetermined pitch in the magazine so that the magazine is immersed in the cleaning tank.

Since the ultrasonic vibration device provided in the ultrasonic cleaning tank is usually provided in the lower part of the tank, the bottom of the magazine must be opened. For this purpose, the magazine has front and rear end plates with a 3
The supporting rods of the book are erected, a large number of grooves are circumferentially formed on each of the supporting rods with a predetermined pitch interval, and the outer peripheral edge portion of the disk is engaged with each of these supporting rods, so that a stable state is obtained. Positioned and fixed.

[0004]

By the way, as described above, when the disc is engaged with the groove of the supporting rod, the engaging portion of the disc with the supporting rod becomes a blind spot of ultrasonic vibration and uneven cleaning occurs. There is a problem in that

The present invention has been made in view of the above points, and it is an object of the present invention to make it possible to perform ultrasonic cleaning uniformly on the entire disk.

[0006]

In order to achieve the above-mentioned object, according to the present invention, a magazine in which a plurality of discs are arranged in an upright state is immersed in an ultrasonic cleaning tank, so that the magazine is Ultrasonic cleaning of the inner disk, in order to support each of the disks, a supporting rod provided with positioning grooves with a predetermined pitch interval is rotatably connected to the end plates on both sides, The structure is characterized in that it is connected to a rotation driving means for rotating and driving each of the support rods in the ultrasonic cleaning tank.

[0007]

In the ultrasonic cleaning tank, the disk must be supported by some kind of supporting member. Therefore, it is impossible to eliminate the portion where the ultrasonic vibration of the cleaning liquid does not circulate during ultrasonic cleaning. Therefore, in the present invention, in the ultrasonic cleaning tank, by rotating the disk, a part of the disk where ultrasonic vibration does not wrap around by the supporting rod, or a part that does not wrap around smoothly is always at a fixed position. We try not to create a situation of staying. As a result, there is no part where ultrasonic vibration is not transmitted.

Here, it is not always necessary to rotate the disk at a high speed. From the viewpoint of preventing uneven cleaning, for example, when the magazine is immersed in the tank,
Rotating is enough. Therefore, the rotation of the disk does not cause any inconvenience such as disturbance of the liquid in the tank.

Specifically, the rotation of the disk can be carried out by rotating the support rod supporting the disk. If the three supporting rods are simultaneously rotated in the same direction at the same angular velocity, the disks supported by these supporting rods rotate. Further, it is preferable that the rotation driving means is provided outside the tank. For this purpose, gears are connected to each support rod, and these gears are made to mesh with the transmission gears attached to the end plates of the magazine.After the magazine is immersed in the ultrasonic cleaning tank, it is placed outside the tank. If the drive gear connected to the rotation driving means such as a motor is engaged, the rotation driving means can be located outside the tank.

[0010]

Embodiments of the present invention will now be described in detail with reference to the drawings. First, FIG. 1 shows the overall configuration of the magazine 1. This magazine 1 has three support rods 4a to 4c installed between the front and rear end plates 2 and 3, and the end plates 2 and 3 are
In between, a pair of reinforcing bars 5 is provided so as to extend over the left and right parts of the ultrasonic cleaning tank 10 which will be described later and which are located on the liquid surface. A large number of circumferential grooves 6 are formed on the support rods 4a to 4c at equal pitch intervals. As is apparent from FIG. 2, the groove 6 has an inclined shape in which the side wall portion becomes narrower toward the central portion. As a result, when the outer peripheral edge portion of the disc D is engaged with the groove 6, the chamfer portion of the disc D is held by the action of gravity.

The support rods are a support rod 4a engaged with the lowermost part of the support rod 4a when the disc D is in an upright position, and a pair of support rods engaged with the support rod 4a at an angle of 90 ° or less from this position and at equal intervals. 4b and 4c. The bearing rods 4a to 4c are rotatably connected to the end plates 2 and 3 via bearings 7, respectively. On one end plate 2 side of the end plates 2 and 3, the supporting rods 4a to 4c are extended to the outer side surface of the end plate 2 and, as shown in FIG. , 8b, 8c are connected. These gears 8a to 8c are constantly meshed with a transmission gear 9 rotatably mounted on the end plate 2. Therefore,
When the transmission gear 9 is rotated, the gears 8a to 8c simultaneously rotate in the same direction and at the same angular velocity.

Next, the ultrasonic cleaning tank 10 is shown in FIGS.
As shown in FIG.
The cleaning liquid is stored in the tank body 11 up to a predetermined liquid level. A bracket 13 is provided on the outer surface of the tank body 11, and a motor 14 is installed on the bracket 13. A drive gear 15 is attached to the output shaft 14a of the motor 14, and the drive gear 1
When 5 is meshed with the transmission gear 9 and the motor 14 is operated to drive the drive gear 15 to rotate, the transmission gear 9 is made to follow the rotation.

The present embodiment is constructed as described above, and its operation will be described below. First, a predetermined number of discs D are placed in the magazine 1 and the grooves 6 of the support rods 4a to 4c.
It is attached in the state of being engaged with. And this magazine 1
Is immersed in the tank body 11 of the ultrasonic cleaning tank 10, and the transmission gear 9 provided in the magazine 1 is connected to the drive gear 1 of the motor 14.
Mesh with 5. Here, in order to make the gears 15 and 9 mesh with each other, for example, when the magazine 1 is immersed in the tank body 11, the transmission gear 9 is once arranged at a position separated from the drive gear 15, and then Just slide the magazine 1. If the motor 14 can be moved up and down, the magazine 1 is immersed in the tank body 11 with the motor 14 being raised, and then the motor 1 is moved.
4 is lowered, the drive gear 15 connected to the motor 14 can be meshed with the transmission gear 9.

As described above, by operating the ultrasonic vibration device 12 in a state where the drive gear 15 and the transmission gear 9 are meshed with each other, ultrasonic vibration is generated in the cleaning liquid in the tank main body 11, The disk D is ultrasonically cleaned. And
During this time, the motor 14 is operated to rotate the drive gear 15. The rotation of the drive gear 15 is transmitted through the transmission gear 9 to the gears 8a to 8c connected to the support rods 4a to 4c.
Rotate c. As a result, as shown by the arrow in FIG. 5, the support rods 4a to 4c rotate, this rotational force is transmitted to the disk D, and the disk D rotates. As a result, the support rod 4 at the outer peripheral edge of the disk D is
The positions of the contact parts to a to 4c will always change,
There is no part that is not affected by ultrasonic vibration, and the entire surface of the disk D is uniformly washed. Here, the purpose of rotating the disk D is to support the support rods 4a to 4c at the outer peripheral edge thereof.
Since it is for constantly changing the contact position to
It is not necessary to rotate the disk D at a high speed, and it is preferable to rotate the disk D at a low speed to prevent the cleaning liquid from being disturbed. Specifically, the tank body 11 of the ultrasonic cleaning tank 10
It is sufficient to rotate at least once while being immersed.

[0015]

As described above, according to the present invention, the supporting rods for supporting the discs in the magazine are rotatably connected to the end plates on both sides, and these supporting rods are rotationally driven in the ultrasonic cleaning tank. With this configuration, the engaging portion between the disc and the support rod always moves during cleaning, and the portion of the disc that is not subjected to ultrasonic vibrations constantly changes, causing uneven cleaning of the disc. That's not it.

[Brief description of drawings]

FIG. 1 is an external view of a magazine.

FIG. 2 is a sectional view of a main part of the support rod.

FIG. 3 is a side view of the magazine.

FIG. 4 is a structural explanatory view showing a state in which a disc-mounted magazine is immersed in an ultrasonic cleaning device.

5 is a sectional view taken along line XX of FIG.

[Explanation of symbols]

 1 Magazine 2,3 End Plates 4a, 4b, 4c Support Rod 6 Grooves 8a, 8b, 8c Gear 9 Transmission Gear 10 Ultrasonic Cleaning Device 11 Tank Body 12 Ultrasonic Vibration Device 14 Motor 15 Drive Gear

Claims (2)

[Claims] 1. A method for ultrasonically cleaning the disks in a magazine by immersing a magazine in which a plurality of disks are arranged in an upright state in an ultrasonic cleaning tank to support each of the disks. In addition, a supporting rod provided with positioning grooves with a predetermined pitch interval is rotatably connected to the end plates on both sides, and is connected to a rotation driving means for rotationally driving each of the supporting rods in the ultrasonic cleaning tank. An ultrasonic cleaning device having the above structure. 2. Each of the supporting rods has at least one end plate penetrating therethrough, and a gear is provided in an extending portion thereof, and these three gears are meshed with a transmission gear attached to the end plate, and the transmission gear is formed. The gear is engaged with a drive gear that is rotationally driven by a motor provided outside the ultrasonic cleaning tank, and the motor is driven to simultaneously rotate the support rods. 1. The ultrasonic cleaning device according to 1.