JPH09282650A - Device for producing information recording disk - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for manufacturing an information recording disk which eliminates the wear of an elastic raw sheet and the trouble of an exchange, prevents the deviation in printing and sticking and is suitable for production of DVDs. SOLUTION: This device is constituted by providing the surface of a movable receiving base 1 with a setting table 4 for supporting, positioning and fixing the surface of an information recording disk member 3, such as compact disk, forming suction holes 5 for attracting the member 3 on the placing surface of this setting table 4 and connecting these holes to an evacuation system. The setting table 4 is formed of a rigid glass material and the placing surface is polished to a flat mirror finished surface. Two units of the receiving bases 1 are installed side by side and two sheet of the disk members are stuck to each other by oscillating these bases. As a result, the disk members 3 are securely positioned and fixed onto the setting tables 4 without damaging the members. Since the device is light in weight and its placing surface hardly wears, the manufacture and maintenance thereof are facilitated. The relieving of the strains of the thin disk member is made possible by utilizing the insulation characteristic of the setting tables 4, thereby subjecting the disk members 3 to a corona discharge treatment or utilizing the smoothness thereof.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a compact disc, an optical disc, and a digital video disc (DVD).
The present invention relates to an apparatus for manufacturing information recording discs such as

[0002]

2. Description of the Related Art Conventionally, in the process of manufacturing a disc of this kind, a process of displaying information on the surface of an information recording disc member by offset printing or screen printing, and further bonding two information recording disc members in the case of a DVD. Is added. In such a process, it is necessary to position and fix the disk member in order to prevent printing misalignment and bonding misalignment. Therefore, as shown in FIG. 1, a plurality of recesses g are formed in a movable metal pedestal a. A metal setting table b is provided there, and when the disk member d is placed on the mounting surface of the setting table b via the elastic cloth c, the elasticity connecting to the vacuum exhaust system connected to the vacuum pump is set. The air is sucked from the cloth c and the intake holes e formed on the mounting surface, and the disk member d
Are fixed by adsorption. The elastic cloth c is made of synthetic rubber or the like, and when the disk member d is adsorbed and fixed, its elasticity serves to prevent air leakage from the gap between the disk member d and the setting table b.

When the disk member d is printed, the roll-shaped print head f rotates the surface of the disk member d after the adsorption and fixation, or the squeegee squeezes the ink during screen printing. Reference numeral h is a center pin into which a center hole i formed at the center of this type of disk member is fitted. When bonding DVDs, two disk members d are prepared on two pedestals, and an adhesive is printed on each of them, and then both disk members are polymerized in a vacuum so that bubbles are not generated. The adhesive is cured by pressing and bonding.

[0004]

When the elastic cloth c as described above is used, it is worn by the longitudinal and lateral frictional forces of the printing head and the pressing head at the time of printing or laminating, and the productivity of the apparatus is increased. However, there is a problem in that the more frequent the replacement, the more frequent the replacement and the delicate care required to prevent air leakage during the replacement work, which requires a long working time. Further, due to its elasticity, the elastic cloth c is expanded and contracted by the force in the longitudinal and lateral directions in the printing and laminating processes, and as a result, the disk member is swung around the center pin h, for example, and the printing register is registered. There is a defect that the image becomes unclear due to the deviation of the line and non-uniform bonding occurs.

The present invention provides an information recording disk manufacturing apparatus which eliminates abrasion and replacement problems of elastic fabrics, prevents printing and bonding deviations, and facilitates product management, and enables rapid bonding. It is an object of the present invention to provide an information recording disk manufacturing apparatus.

[0006]

According to the present invention, a setting table for supporting and positioning and fixing the surface of an information recording disk member such as a compact disk is provided on a movable receiving table, and the disk is mounted on the mounting surface of the setting table. In an apparatus in which an intake hole for adsorbing a member is formed and is connected to a vacuum exhaust system, the setting table is made of a hard glass material, and the mounting surface is polished to a flat mirror surface. To achieve the purpose of. The purpose of preventing misalignment of bonding is to have a mounting surface for supporting the surface of an information recording disk member such as a compact disk, and to connect the vacuum exhaust system to the mounting surface to fix the disk member by suction. Two movable pedestals provided with a setting table having an air intake hole are provided in parallel with respect to the moving direction and swingably so that the disk members of both setting tables overlap with each other. This is achieved by manufacturing the table with a hard glass material, polishing the mounting surface into a flat mirror surface, and providing the receiving table with a light irradiation hole for the back surface of the setting table.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION One example of an embodiment of the present invention is shown in FIG.
In the figure, reference numeral 1 indicates a metal plate-shaped pedestal, and the pedestal 1 is moved in the direction perpendicular to the paper surface by an appropriate driving means. The pedestal 1 is formed with a stepped through hole 2 which penetrates through the front and back of the pedestal 1 and a part of which serves as a light irradiation hole 2a. A setting table 4 for supporting and fixing the surface of the disk member 3 of the recording disk was set and fixed. Setting table 4 on which the disk member 3 is placed
A plurality of end portions of the intake holes 5 are formed on the mounting surface 4a of the exhaust gas, and the intake holes 5 are exhausted inside the receiving plate 1a fitted into the setting base 4 and the through holes 2 of the base 1. It is connected to an evacuation system connected to an external vacuum pump through the hole 6.

The setting table 4 is made of a transparent hard glass material, and the mounting surface 4a is polished to a flat mirror surface of high quality smoothness, and the disk member 3 is mounted on the mounting surface 4a. At this time, both of them come into close contact with each other and the position of the member 3 is fixed by suction of the intake hole 5. Since there is no elastic cloth as in the conventional case, the disk member 3 does not move and can withstand long-term use. It is possible to eliminate the conventional inconveniences such as printing deviation and bonding deviation. The disk member 3 is relatively rigid, and this is the mounting surface 4a of the setting table 4 having rigidity.
It is feared that the surface of the disk member 3 may be damaged by the surface contact when a space is generated between the contact surfaces when it comes into surface contact with the surface 4a.
By polishing to a mirror surface of high smoothness, there was no damage due to air leakage or contact, the disk member 3 was fixed at a predetermined position, no parts were replaced, and maintainability and durability were good. . Since the setting table 4 is made of transparent hard glass, the symbols and the like displayed on the surface of the disk member 3 can be read through the irradiation hole 2a and the setting table 4,
The management of the product becomes easy and the station for reading can be omitted, so that the equipment can be simplified.

In the illustrated example, the setting table 4 is formed in a disk shape, and the pedestal 1 to the positioning pin 7 are formed in the central portion on the surface side.
And the end portion of the air intake hole 5 is formed around it, and the setting table 4 is supported by the stepped portion of the through hole 2 of the receiving table 1 and airtightly provided with a transparent glass receiving plate 1a. However, the setting table 4 and the receiving plate 1a may be integrally made of transparent hard glass.

The disk member 3 is set on the setting table 4 by an automatic machine while being locked by the positioning pin 7, and when the disk member 3 is immovably fixed in that position by the intake air of the intake hole 5, the receiving table 1 is moved. Then, the disk member 3 is fed, for example, below the print head 8 of the printing machine, where the disk member 3 is printed. During such a process such as printing, a frictional force acts on the disk member 3 in the vertical and horizontal directions to generate a turning force about the centering positioning pin 7, which causes misalignment of the print or the disk member 3 Although this causes inconvenience such as damage, the setting table 4 is made of a hard glass material and the mounting surface 4a thereof is polished to a high smoothness, so that the disk member 3 is firmly adhered to the surface by suction of the intake holes 5. The above-mentioned inconvenience is eliminated because it is fixed and no turning occurs. In addition, since the surface of the setting table 4 is smooth, dust can be easily removed even if it is placed, and the high smoothness can be used to correct the distortion of the thin disk member 3 for printing or bonding. It is possible to improve the quality and the surface is hard to wear, so there is no need to replace parts for a long period of time, and it is lighter than iron and can be easily mirror-finished. The setting table 4 is made of a transparent glass material so that the disk member 3 can be irradiated with ultraviolet rays through the receiving table 1 and a symbol such as a bar code on the surface of the disk member 3 can be read. This makes product management easier. Further, since the setting table 4 is made of a non-conductive glass material, it is possible to perform a pre-treatment to generate corona discharge to oxidize the surface of the disk member 3 before printing, and good printing can be performed.

When a DVD is manufactured by bonding two information recording disk members together, as shown in FIGS. 3 and 4,
The two pedestals 1 provided with the above-mentioned polished hard glass material setting pedestals 4 are arranged in parallel with respect to the moving direction of the pedestals 1 and placed on the respective setting pedestals 4 and 4. After applying the screen-printing type UV curable adhesive 13 on 3, 3, each setting table 4, 4 by an appropriate rocking device (not shown).
The both pedestals 1 and 1 are swung so that the surfaces of the disk members 3 and 3 placed on the disk member 3 overlap with each other, and pressure is applied when necessary to bring the disk members 3 and 3 into close contact with each other. And
In this state, the adhesive 13 is conveyed into the vacuum chamber 10 equipped with the ultraviolet lamp 9 and the adhesive 13 is cured while eliminating the gas between the joint surfaces of the disk members 3 and 3. After the adhesive is hardened, it is carried out from the vacuum chamber 10 and the two receiving trays 1 and 1 are opened, and the bonded disk members are taken out between them. A small vacuum pump 12 that communicates with the exhaust hole 6 is attached to each pedestal 1, and securely holds the disk members 3 and 3 by suction on the mounting surface 4a having a flat mirror surface so as not to move. Also, UV lamp 9
The ultraviolet rays from irradiate the surface of each disk member 3 through the irradiation hole 2a, the transparent glass receiving plate 1a, and the setting table 4,
The adhesive 13 between the disk members is hardened quickly and reliably. A symbol such as a lot number displayed on the surface of the disk member 3 can also be read through the irradiation hole 2a, the transparent receiving plate 1a and the setting table 4, so that product management becomes easy and maintenance becomes easy. Also in this case, the receiving plate 1a and the setting table 4 may be made of an integral hard glass material.

[0012]

As described above, according to the present invention, the setting table for supporting the information recording disk member on the movable receiving table and positioning and fixing by the exhaust from the intake hole is made of a hard glass material and mounted thereon. Since the mounting surface is polished to a flat mirror surface, the disc member can be firmly positioned and fixed on the setting table without using a special member such as elastic cloth, and it is clear without damaging the disc member. You can print
Since it is lightweight and its mounting surface is hardly worn, it is easy to manufacture and maintain, and the insulating property of the setting table is used to perform corona discharge treatment on the disk member or the smoothness of the thin disk member. By correcting the distortion and making the hard glass material transparent, it is possible to irradiate the disk member with ultraviolet rays or read the symbols on the surface to facilitate the shortening and management of the process. By adopting the configuration of 2, the adhesive can be further quickly and surely cured when the disc members are bonded together, and an advantageous effect can be obtained in the manufacture of a DVD.

[Brief description of drawings]

FIG. 1 is a sectional side view of a conventional example.

FIG. 2 is a cutaway side view of the embodiment of the present invention.

FIG. 3 is a perspective view of an embodiment according to claim 2 of the present invention.

FIG. 4 is an enlarged cross-sectional view of the main part of FIG.

[Explanation of symbols]

1 pedestal, 1a receiving plate, 2 through holes, 2a irradiation hole, 3
Information recording disk, 4 setting table, 4a mounting surface, 5 air intake holes,

Claims (4)

[Claims] 1. A movable pedestal is provided with a setting table for supporting and positioning the surface of an information recording disk member such as a compact disk, and an intake hole for adsorbing the disk member on a mounting surface of the setting table. An apparatus for manufacturing an information recording disk, characterized in that the setting table is manufactured by a hard glass material and the mounting surface is polished into a flat mirror surface in an apparatus in which the above is formed and is connected to a vacuum exhaust system. 2. A setting table having a mounting surface for supporting the surface of an information recording disk member such as a compact disk and having an intake hole connected to a vacuum exhaust system for adsorbing and fixing the disk member to the mounting surface. Two movable cradle,
Provided in parallel to the moving direction and swingably so that the disk members of both setting bases overlap with each other, the setting base is made of hard glass material, and the mounting surface is polished to a flat mirror surface. An information recording disk manufacturing apparatus, characterized in that the receiving table is provided with a light irradiation hole on the back surface of the setting table. 3. The information recording disc manufacturing apparatus according to claim 1, wherein the setting table is made of a transparent hard glass material. 4. A receiving plate made of transparent glass is fitted in the irradiation hole,
The information recording disk manufacturing apparatus according to claim 2, wherein the setting table is supported by the receiving plate.