JPH0448856Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a rotary coating device for uniformly applying paint to the surface of a disk having a hole in the center, such as a compact disk.

[Conventional technology]

A conventional spin coating device will be explained with reference to FIGS. 5 to 7. In FIG. 5, the disk 3 placed on the tray 2 at the disk supply port 1 is moved by a tray etc. pitch feeding device 7 consisting of a slide rail 4, a guide rail 5, a pusher 6, etc. as shown in FIG. Transported in pitches. When the four trays are arranged at equal pitches in front of the rotary coating unit 8, the four trays 2 are simultaneously sent to the rotary suction head 9 of the rotary coating unit 8 as shown in FIG. Tray 2 is placed on the rotating suction head.
The disk 3 placed thereon is lifted by the rotary suction head 9 to the rotary coating position. Next, paint is dripped onto the disk 3 from the paint discharge nozzle 10 while rotating the rotary suction head 9 at a low speed, and then an appropriate acceleration is applied to the rotary suction head 9.
It rotates at high speed and uses centrifugal force to apply the paint to a uniform thickness on the disk 3. The disc 3 is returned onto the tray 2 by the rotary suction head 9 and sent onto the conveyor 11. The disc 3 is moved on the conveyor 11 while the paint on the disc 3 is dried and hardened by the paint drying device 12, and the tray etc. are sent in pitch. The disks are arranged at equal pitches by the device 7 and the disks are discharged from the
It is discharged from 3.

[Problem that the invention attempts to solve]

However, in such a conventional device, since the disk 3 is transported by the tray 2,
The drawbacks were that dust was easily generated due to sliding, and maintenance such as cleaning the tray was time-consuming. Furthermore, when using a method other than the tray method, there is a drawback that paint adheres to the device for transporting the disk when the disk is transported after a uniform film has been formed on the surface of the disc.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention provides an apparatus for dripping paint onto the surface of a disk having a hole in the center and forming a uniform film on the surface of the disk by rotation. a rotary suction head having a protrusion having a plurality of notches formed therein, and a plurality of rotary suction heads that are inserted into the notches in a closed state and pressed against the inside of the hole in the disk in an open state; The present invention provides a rotary coating device comprising: a clamp pin; and a disk clamp transfer head equipped with the clamp pin for lifting and moving the disk.

[Effect]

In an apparatus that forms a uniform film on the disk surface by rotation, paint may adhere to the outer peripheral surface of the disk due to centrifugal force, but the paint will not adhere to the hole in the center of the disk. Therefore,
In the present invention configured as described above, paint does not adhere to the clamp pins of the disk clamp transfer head.

〔Example〕

An embodiment of the present invention will be explained with reference to FIGS. 1 to 3. In FIG. 1, when a disk 3 is supplied to a disk pitch feeder 14 at a disk supply port 1, the disk pitch feeder picks up the disk 3 and moves it forward by a predetermined pitch. When the four disks are lined up at equal pitches in front of the rotary coating unit 8, the four disks 3 are each picked up by a disk suction conveyance head 15 as shown in FIG. It is placed on the rotary suction head 9 at a certain position. Next, while rotating the rotary suction head 9 at a low speed, paint is dripped from the paint dispensing nozzle 10 onto the disk 3, and then the rotary suction head 9
Appropriate acceleration is applied to the disc 3 to rotate it at high speed, and the paint is applied to the disc 3 in a uniform thickness using centrifugal force. As shown in FIG. 3, a notch 17 is formed in the protrusion 16 of the rotary suction head.
After the paint is applied to the disk 3, the rotary suction head 9 stops at a fixed position, and the clamp pin 19 of the disk clamp transfer head 18 presses the wall portion of the hole in the center of the disk 3 from the notch 17. While holding the disk, the disk is picked up and moved to the disk pitch feeding device 14. The disk pitch feed device picks up the disk 3 and moves it forward by a predetermined pitch. During this process, the disk 3 passes through a paint drying device 12, and the paint on the disk is dried and hardened and sent to the disk discharge port 13. Proceed to. In this embodiment, the rotary suction head is fixed and the disk is removed from the application position by picking it up from above, which eliminates the possibility of paint scattering and contaminating the device. In addition, the structure is simpler than the conventional tray method, and since there are no sliding parts, no dust is generated, making maintenance easier. By the way, in a device that forms a uniform film on the disk surface through rotation, paint may adhere to the outer circumferential surface of the disk due to centrifugal force, but paint will not adhere to the hole in the center of the disk. Therefore, in this embodiment, paint does not adhere to the clamp pin 19 of the disk clamp transfer head 18 when the disk 3 is taken out from the rotary suction head 9.

FIG. 4 is a diagram showing another embodiment of the present invention. In this embodiment, the clamp pin 19 of the disk clamp transfer head is bent into an L shape so that it can press the disk 3 from the bottom.
This has the effect of making the holding and movement of the objects more reliable.

[Effect of idea]

As described above, the present invention provides an apparatus for dripping paint onto the surface of a disk having a hole in the center and forming a uniform film on the surface of the disk by rotation. a rotary suction head having a protrusion formed with a plurality of notches; a plurality of clamp pins that are inserted into the notches in a closed state and press against the inside of the hole of the disk in an open state; This rotary coating device is characterized by comprising a disk clamp conveying head that is equipped with the clamp pin and lifts and moves the disk. Because the present invention has these features, not only does it eliminate the possibility of the equipment becoming dirty with paint, but the structure is simpler than conventional equipment, and since there are no sliding parts, no dust is generated, making maintenance easier. Effects such as this can be obtained.

[Brief explanation of the drawing]

Figures 1 to 3 are diagrams for explaining one embodiment of the present invention, Figure 4 is a diagram for explaining another embodiment of the present invention, and Figures 5 to 7 are diagrams for explaining a conventional device. FIG. 1...Disk supply port, 2...Tray, 3...
Disk, 4...Slide rail, 5...Guide rail, 6...Pusher, 7...Pitch feed device such as tray, 8...Rotary coating unit, 9...Rotary suction head, 10...Paint discharge nozzle, 11 …
...conveyor, 12...paint drying device, 13...disk discharge port, 14...disk etc. pitch feeding device, 15...disc suction conveyance head, 16...
Protrusion of rotary suction head, 17...notch, 18
...Disk clamp transfer head, 19...Clamp pin.

Claims (1)

[Claims for Utility Model Registration] A device that drips paint onto the surface of a disk 3 having a hole in the center and forms a uniform film on the surface of the disk 3 by rotation, which fits the hole of the disk 3. A rotary suction head 9 has a protrusion 16 of a size such that a plurality of notches 17 are formed, and the rotary suction head 9 is inserted into the notch 17 in a closed state and extends inside the hole of the disk 3 in an open state. A plurality of clamp pins 19 that press into contact with each other, and the disk 3 equipped with the clamp pins 19
A rotary coating device comprising a disk clamp transfer head 18 for lifting and moving the disk.