JP2548910B2 - Rotating device for disk members - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a disk member rotating device for rotationally driving a disk member in a manufacturing process of a magnetic disk, an optical disk or the like.

[Prior Art] In a disc-shaped recording medium such as a magnetic disc or an optical disc, a recording layer is formed on the surface of a disc member formed of a disc made of metal such as aluminum, and information can be written in or read from the recording layer. It is configured to be able to do.

The above-mentioned magnetic disk and optical disk are manufactured on the disk member through various processes. During the manufacturing process, for example, a cleaning process, a drying process, a recording film forming process, etc. are performed while rotating the disk member. There is. When the support member is brought into contact with the surface of the disc member when the disc member is rotatably supported, the surface of the disc member may be damaged. It is necessary to engage with the peripheral edge or the outer peripheral edge. And
It is desirable that the rotating device for the disk member is provided with a rotating mechanism for the disk member and an attaching / detaching mechanism for automatically attaching / detaching the rotating mechanism. If it is configured to have a mechanism,
There are drawbacks such as a complicated structure and a large device configuration.

[Problems to be Solved by the Invention] The present invention has been made in view of the above points, and an object of the present invention is to provide a disk member rotating device including a disk member rotating mechanism and a detaching mechanism. Another object is to make it possible to form a compact and compact structure.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention is arranged such that a rotation block that rotates integrally with the spindle is connected to the tip of a hollow spindle that is rotationally driven by the rotation driving means. Then, a plurality of support shafts are swingably attached to the rotation block, and a chuck position at which the tip end of each support shaft engages with the inner peripheral edge or the outer peripheral edge of the disk member by the swing, and from the disk member A movable chuck member having a substantially V-shaped chuck groove that is displaced between the chuck release position and the separated chuck release position is attached, and an operating rod is provided in a hollow portion of the spindle so as to be displaceable in the axial direction thereof. One end of the rod is connected to the base end portion of the support shaft via a conversion member that converts the movement of the operating rod in the axial direction into the swing motion of the support shaft and transmits the movement, and the other end is connected to the operation rod. Is characterized in that it is connected to a push-pull member that is displaced in the axial direction so as to be relatively rotatable.

[Operation] Then, first, with the chuck member held at the chuck release position, the disk member is transferred to a position facing the chuck member of the rotating device by an appropriate transfer means, and is connected to the end of the operating rod. As a push-pull member, for example, by displacing the actuating rod in the axial direction by a cylinder or the like, a support shaft swingably supporting the chuck member is swung through a conversion member connected thereto, and the chuck member is disc-shaped. Support is provided by chucking the disc member by engaging the inner periphery of the member or the periphery. After that, when the rotation driving means such as a motor is activated to rotate the spindle,
A rotary block connected to the spindle is rotated following the spindle, a chuck member is rotated together with a support shaft attached to the rotary block, and a disc member supported by the chuck member is rotationally driven. . At this time, since the push-pull member is connected to the actuating rod so as to be rotatable relative to the actuating rod, the actuating rod smoothly follows and rotates even when a pulling force is applied.

As described above, a predetermined operation is performed on the disk member while the disk member is rotating, and when this operation is completed, a transfer device for transferring the disk member to the next working step is made to face the disk member. , When the transfer device grips the disk member,
By displacing the actuating rod in the axial direction in the opposite direction to that described above, the disk member is detached from the rotating device.

As described above, the working rod for displacing the chuck member between the chuck portion position and the chuck release position is inserted into the spindle for engaging the disc member and rotating the chuck member supporting the disc member, and the working rod is used as an axis. Since the chuck member is actuated by displacing it in the direction, the rotation mechanism and the support mechanism of the disk member can be compactly housed, and the configuration of the rotation device is simplified.

Embodiments Embodiments of the present invention will be described in detail below with reference to the drawings.

First of all, in FIG. 1, reference numeral 1 denotes a wall portion for partitioning and forming a working portion, a bearing bush 2 is fixedly provided on the wall portion 1, and a hollow spindle 3 is fitted in the bearing bush 2. A bearing 4 is interposed between the spindle 3 and the bearing bush 2, and the spindle 3 is mounted on the bearing bush 2
It is rotatably supported by. At the base end of the spindle 3, a pulley 5 around which a transmission belt from a motor is wound is attached as a rotation driving means outside the wall 1, and a rotation block 6 is provided at the tip of the spindle 3.
Are continuously provided so that the rotation block 6 can be rotated integrally with the spindle 3. The rotation block 6 has a box shape, and the top plate portion 6a has a second
As shown in the figure, three support shafts 7 are mounted.
Each of the support shafts 7 is swingably supported by a bearing 8 in the rotation block 6, and the tip thereof is a top plate portion 6a.
A chuck member 10 is fixedly attached to a mounting plate 9 mounted on the front end surface of the support shaft 7 so as to project outward from the chuck member 10. The central portion of the chuck member 10 has a reduced diameter to form an annular V-shaped groove, and the disk member 11 has its inner edge portion substantially abutting against an inclined surface forming the V-shaped groove by point contact. The disk member 11 is brought into contact with the surface of the disk member 11 so as to be completely out of contact with the surface of the disk member 11 so that the disk member 11 can be supported. Here, the chuck member 10 can be displaced by swinging the support shaft 7 between a chuck position for supporting the disk member 11 and a chuck release position separated from the disk member 11. . In order to displace the chuck member 10 between the chuck position and the chuck release position, a receiving portion 12 is housed in the rotating block 6, and a peripheral portion of the receiving portion 12 is arranged with respect to the axis of the support shaft 7. The inclined concave portions 13 are formed, and the rollers 14 attached to the base end portion of the support shaft 7 are inserted into the concave portions 13.
An operating rod 15 is connected to the receiving portion 12, the operating rod 15 is inserted into the hollow portion of the spindle 3 and is coaxial with the spindle 3, and the other end is a bracket. 16 supported on the wall 1,
It is connected to a connecting member 18 attached to a cylinder 17 which constitutes a push / pull member for the operating rod 15. A rotating body 20 is attached to the connecting member 18 via bearings 19 and 19, and an end portion of an operating rod 15 is inserted into the rotating body 20 and the operating rod 15 is inserted.
A spring 22 is interposed between the end face of 15 and the spring receiver 21, and the actuating rod 15 is biased by the spring 22 in a direction projecting from the connecting member 17. And the spring bridge 21 is a spring
The spring force of 22 can be adjusted.

The present embodiment is configured as described above, and its operation will be described next.

First, the cylinder 17 is operated to displace the connecting member 18 and the operating rod 15 connected to the connecting member 18 in the X direction indicated by the arrow in FIG. 1 to displace the receiving portion 12 in the direction away from the support shaft 7. . As a result, the roller 14 mounted on the support shaft 7 rolls in the recess 13 to swing the support shaft 7 around the bearing 8 along the inclination of the recess 13, and the chuck member 10 mounted on the tip thereof. Are displaced in the directions in which they approach each other, and as a result, as shown in FIG.
Is the chuck release position.

Therefore, the disc member 11 is conveyed by an appropriate transfer device, and the disc member 11 is arranged at a position facing the chuck member 10. Then, by driving the cylinder 17 in the Y direction shown in FIG. 1 to displace the connecting member 18 and the operating rod 15 connected to the connecting member 18 in the same direction, the roller 14 rolls in the recess 13. Then, the support shaft 7 is swung to separate the chuck members 10 from each other, thereby bringing the chuck members 10 into contact with the inner peripheral edge of the disk member 11 to bring the disk member 11 into a chucked state. Support. At this time, since the spring 22 acts on the chuck member 10, the chuck operation is smoothly performed, and further, the friction between the chuck member 10 and the disc member 11 damages or causes the disc member 11 to be damaged. There is no inconvenience to dust.

After that, when the pulley 5 is rotationally driven, the spindle 3 is rotated, whereby the rotary block 6 is rotated, and the support shaft 7 attached to the rotary block 6 is also rotated following this. The disk member 11 supported by the chuck member 10 attached to the support shaft 7 is rotationally driven. Here, what is rotationally driven by the pulley 5 is the receiving portion 12, the operating rod 15, and the rotating body 20 in addition to the above-mentioned members. On the other hand, the cylinder 17 and the connecting member 18 that form the push-pull member are fixed in the rotational direction.

As described above, a desired work is performed on the disk member 11 while it is rotating, and when this work is completed, the operation of the pulley 5 is stopped, and the disk member 11 is transferred to the next step. The disk member 11 is gripped by the member, and thereafter, the cylinder 17 is operated to displace the chuck member 10 to the chuck release position shown in FIG. 3 to detach the disk member 11.

As described above, the mechanism for attaching / detaching the disk member 11 is configured to be inserted into the mechanism for rotationally driving the disk member 11, and each of these mechanisms is arranged in the axial direction, thereby configuring the rotating device. Can be simplified, and the device configuration can be made compact and compact.

Although the chuck member 10 chucks the inner peripheral edge of the disk member 11 in the above-described embodiment, it may be configured to chuck the peripheral edge of the disk member 11.
Further, as the member for reciprocating the operating rod 15, not only the cylinder 17 but also various members such as a crank mechanism can be formed. Furthermore, the operating rod 15 and the rotating body 20
It is also possible to directly connect between and without using the spring 22.

[Effects of the Invention] As described above, the rotating device of the disk member according to the present invention is a hollow spindle that drives and rotates the disk member, and is displaced in the axial direction inside the hollow portion of the spindle to cause the displacement. Is provided with an actuating rod for actuating the converting member for converting the actuating member into the swinging motion of the chuck member, and the push-pull member for driving the actuating rod is connected to the actuating rod so as to be rotatable relative to the actuating rod. The mechanism for performing the chuck and the operation for releasing the chuck and the mechanism for rotationally driving the disc member will be incorporated organically and in a reasonably integrated state, and the device configuration will be simple and its size will be reduced. The size of the disk member is reduced, and the disk member has a substantially V-shaped groove with a reduced diameter in the central portion that engages with the inner or outer peripheral edge of the chuck member Since the chuck and the chuck are released by swinging the chuck member, the contact portion of the chuck member with the disk member during chucking is a pair of inclined surface portions in the V-shaped groove. Contact only the inner or outer peripheral edge of the disk member, and in a point contact state, the contact area is extremely small, and the surface portion used as the recording layer of the disk member is kept in a non-contact state. As a result, the effect of eliminating the risk of scratches and dust generation is achieved.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG.
FIG. 3 is a left side view of the figure, and FIG. 3 is a cross-sectional view of essential parts showing an operating state different from that of FIG. 2: Bearing bush, 3: Spindle, 5: Pulley, 6: Rotation block, 7: Support shaft, 10: Chuck member, 11: Disc member,
12: receiving part, 13: concave part, 14: roller, 15: operating rod, 17: cylinder.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Nobuo Morita, No. 300 Hisasho, Nakai-cho, Ashigaragami-gun, Kanagawa, Hitachi Electronics Engineering Co., Ltd. (72) Shotaro Hiwatari, 300, Hisaisho, Nakai-cho, Ashigara-gun, Kanagawa Hitachi Electronics Engineering Co., Ltd. (56) References Japanese Patent Laid-Open No. 50-58682 (JP, A) Japanese Patent Laid-Open No. 51-10488 (JP, A) Actual Opening Sho 52-160887 (JP, U) Actual Opening Sho 59-107723 (JP, U) Actually open 60-123721 (JP, U) Actually open 59-104387 (JP, U)

Claims (1)

(57) [Claims] 1. A hollow block which is rotationally driven by a rotary drive means is provided with a rotary block which rotates integrally with the spindle, and a plurality of support shafts are swingably attached to the rotary block. A substantially V-shaped chuck groove that is displaced between the chuck position at which the tip of each of the support shafts engages with the inner peripheral edge or the outer peripheral edge of the disk member by their swinging and the chuck release position separated from the disk member. A movable chuck member having an operating rod is inserted into the hollow portion of the spindle so as to be displaceable in the axial direction thereof, and one end of the operating rod is provided at the base end portion of the support shaft.
The movement of the operating rod in the axial direction is connected via a conversion member that converts and transmits the swinging movement of the support shaft, and the other end is rotatable relative to a push-pull member that displaces the operating rod in the axial direction. A rotating device for a disk member, which is configured to be connected.