JP2003272242A - Disk laminating apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disk laminating apparatus for performing accurate lamination with a simple configuration and precluding the possibility of causing insufficient laminated part. <P>SOLUTION: In laminating a first disk 2 with a center hole 5 and a second disk 3 with a center hole 6 the diameter of which is greater than that of the center hole 5 of the first disk 2 via an adhesive layer 4 paced on either or both the disks, the center hole 6 of the second disk 3 is fitted to a large diameter part 24 of a centering core 21 whose height is variable and placed on an adhesion work table 20, and the second disk 3 is placed on the adhesion work table 20. Then the center hole 5 of the first disk 2 is fitted to a small diameter part 22 of the centering core 21. A vacuum adhesion head 72 being a first disk pressing means descends the first disk 2 and the centering core 21 to press the first disk onto the second disk. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc laminating apparatus for laminating and integrating discs.

[0002]

2. Description of the Related Art In an optical disc such as a DVD (digital versatile disc), a plurality of discs are stuck together to form one disc. There are several standards even if it is called a DVD, and the thickness of the disc to be bonded depends on the standard. For example, some discs have a thickness of about 1.2 mm by laminating two discs with a thickness of 0.6 mm, and some discs have a thickness of about 1.1 mm by laminating a disc of 0.1 mm on a disc of 1.0 mm. There are also things to do. In any case, it deals with extremely thin discs, which in some cases may be described as a "film", and special equipment is required for the automation device in order to bond them evenly without bubbles. become.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a disk laminating apparatus capable of performing an accurate laminating work with a simple structure and without the risk of insufficient laminating. To aim.

[0004]

To achieve the above object, in the present invention, a first disk having a central hole and a second disk having a central hole having a diameter larger than the central hole of the first disk are provided. In a disc laminating apparatus for laminating any of the discs via an adhesive layer provided on either or both disc surfaces, and having the following configurations (a) to (f):
The steps (a) to (c) are to be performed. (A) a sticking work table (b) a small diameter portion that fits in the center hole of the first disc,
The large-diameter portion that fits the center hole of the second disk is arranged vertically so that the former is on the upper side and the latter is on the lower side, and a shoulder portion is formed between them, and from the lower surface of the sticking work table. Centering core protruding toward the upper surface (c) Centering core supporting means (d) First disk transfer means (e) Second disk transfer for supporting the centering core with respect to the attachment work table in a variable height Means (f) First disc pressing means (ii) When the large diameter portion of the centering core is projected onto the pasting work table, the second disc is moved by the second disc transfer means to the pasting work table. Carrying the second disk and placing the second disk on the sticking work table with its center hole fitted in the large diameter portion of the centering core (b) transferring the first disk Means for carrying the first disk onto the sticking work table and fitting the center hole of the first disk into the small diameter portion of the centering core (c) the first disk and the centering core (1) A step of lowering with a disc pressing means to press the first disc against the second disc.

According to this structure, the second disk and the first disk are sequentially fitted to the centering core, and then the first disk is inserted.
When the disc and the centering core are lowered by the first disc pressing means, the centering core and the first disc sink and are pressed against the second disc. As a result, the first disc and the second disc are bonded together with their centers properly aligned. Further, since the centering core is not invariable in height and is capable of sinking, even if something is attached to the centering core and the dimension of the centering core in the height direction changes, the first disc is prevented from approaching the second disc. There is no such thing.

Further, in the present invention, the vacuum suction head which is a constituent element of the first disk transfer means is also used as the first disk pressing means. In this way, the vacuum suction head
Since it also serves as the disk pressing means, it is not necessary to separately provide the first disk pressing means.

Further, according to the present invention, the above-mentioned disk laminating apparatus further comprises the following configurations (g) and (h), and performs steps (d) to (f). (G) Second disk preparation table (h) Fitting guide core removably mounted on the second disk preparation table (d) The fitting guide core mounted on the second disk preparation table Step of fitting the center hole of the second disk (e) The fitting guide core in the fitted state and the second disk are carried onto the sticking work table by the second disk transfer means, and the fitting is performed. The step of fitting the combined guide core to the small diameter portion of the centering core (f) The step of pushing down the second disk and transferring it from the fitting guide core to the large diameter portion side of the centering core.

According to this structure, even if the second disk has a low rigidity and is easily bent, it can be securely fitted into the centering core.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. 19 and 20 show examples of disks to be handled by the disk laminating apparatus of the present invention. The disc 1 is an optical disc, and the first disc 2 and the second disc 3 are bonded together via an adhesive layer 4. The adhesive layer 4 is provided on the surface of the second disk 3, and is pressed against the first disk 2 to bond the disks 2 and 3 together. The first disc 2 and the second disc 3 correspond to what are called “disc substrate” and “light-transmitting sheet” in the optical disc.

The first disk 2 and the second disk 3 have central holes 5 and 6, respectively. The central hole 6 has a larger diameter than the central hole 5. On the other hand, the outer diameter of the second disc 3 is smaller than the outer diameter of the first disc 2. The outer diameter of the adhesive layer 4 and the diameter of its center hole are the same as those of the second disk 3.

FIG. 1 is a plan view of a disk bonding apparatus 10. Three index tables 11, 12, 1
3 is prepared. The index table 11 supports two attachment work tables 20 at 180 ° intervals. The index table 12 is the first disk preparation table 40.
Two pieces are supported at 180 ° intervals. The index table 13 supports two second disk preparation tables 50 at 180 ° intervals. Index tables 11, 12, 13
The indexing rotation angle of each is 180 °.

A peeling unit 60 is provided for the index table 11. Index table 12
A first disk transfer means 70 is provided for the. A second disk transfer unit 80 is provided for the index table 13. Although not shown, the index table 12 is provided with a first disk supply means and a disk ejection means, and the index table 13 is provided with a second disk supply means.

The structure of the sticking work table 20 is shown in FIG. The pasting work table 20 has a circular shape in a plan view and has a centering core 21 at the center. The centering core 21 is for centering the first disk 2 and the second disk 3, and the diameter thereof changes in three steps. At the top is the small diameter section 22, which has a diameter adapted to the central hole 5 of the first disc 2. The upper portion of the small diameter portion 22 is a taper portion 23 for accepting the first disc 2 smoothly. The middle section is a large diameter portion 24, which has a diameter that fits in the central hole 6 of the second disc 3. A shoulder portion 25 is formed between the large diameter portion 24 and the small diameter portion 22. The lower portion is a flange portion 26, which has a larger diameter than the large diameter portion 24.

The sticking work table 20 has a central hole 27. Through this center hole 27, the centering core 21 projects from the lower surface of the sticking work table 20 toward the upper surface. The diameter of the central hole 27 changes in two steps. That is, the large-diameter hole 28 drilled from the bottom surface to the top surface of the sticking work table 20 constitutes the lower part. The large diameter hole 28 has a diameter such that the flange portion 26 of the centering core 21 can freely move up and down. A small-diameter hole 29 constitutes the upper portion, and has a diameter adapted to the large-diameter portion 24 of the centering core 21. The centering core 21 has a flange portion 26.
Center hole 2 with the upper limit being the position where
It is possible to go up and down in 7.

The centering core 21 is supported by the centering core supporting means 30 so as to be variable in height with respect to the sticking work table 20. A compression coil spring 31 constitutes the centering core supporting means 30. The compression coil spring 31 always urges the centering core 21 upward.

A ring-shaped perforated layer 35 is arranged on the upper surface of the sticking work table 20 so as to surround the centering core 21. The perforated layer 35 is made of a sintered alloy or the like and is embedded in the sticking table 20 so that its upper surface is flush with the upper surface of the sticking work table 20. The perforated layer 35 communicates with the vacuum suction passage 36 inside the sticking work table 20,
A suction force is exerted on the second disk 3 placed on the attachment table 20.

The structure of the first disk preparation table 40 is shown in FIG. The first disk preparation table 40 has a circular shape in a plan view and has a centering core 41 at the center.
Unlike the centering core 21, the centering core 41
Does not go up or down. The centering core 41 is the first disc 2
Has a diameter adapted to the central hole 5 of the above, and the upper portion thereof is a tapered portion 42 for smoothly accepting the first disk 2.

The structure of the second disk preparation table 50 is shown in FIG. The second disk preparation table 50 has a circular plan shape, and has a circular recess 51 in the center thereof. A fitting guide core 52 is removably placed in the recess 51. The recess 51 has an inlet having a diameter larger than the outer diameter of the fitting guide core 52, but narrows in a tapered shape from there to the bottom surface, and at the bottom surface, the fitting guide core 5 is formed.
It has a diameter equal to the outer diameter of 2. Therefore, if the fitting guide core 52 is fitted into the recess 51, the fitting guide core 52 is correctly positioned at the center of the second disk preparation table 50.

The fitting guide core 52 is ring-shaped, has an outer diameter that fits the center hole 6 of the second disk 3, and has an upper portion thereof as a tapered portion 53 for smoothly accepting the second disk 3. ing. The fitting guide core 52 has an inner diameter that matches the small diameter portion 22 of the centering core 21.

The peeling unit 60 is for peeling an anti-adhesive film (not shown) covering the adhesive layer 4 of the second disk 3, and an adhesive tape is used for the peeling. When the roller group 62 around which the adhesive tape 61 is wound is three-dimensionally moved to press the adhesive tape 61 against the anti-adhesion film and the adhesive tape 61 is fed, the anti-adhesion film is peeled off from the adhesive layer 4. , Attached to the adhesive tape 61 and carried away.

The first disk transfer means 70 is composed of an arm 71 that reciprocally rotates in a horizontal plane, and a vacuum suction head 72 attached to the tip of the arm 71. Arm 7
1 performs not only rotation but also vertical movement, and vacuum suction head 72
Develops so-called gate motion.

The structure of the vacuum suction head 72 is shown in FIG.
The vacuum suction head 72 has a circular shape in a plan view, and a recess 73 is formed in the center of the lower surface. The recess 73 receives the small diameter portion 22 of the centering core 21 or the centering core 41. A recess 73 is formed on the lower surface of the vacuum suction head 72.
A plurality of vacuum suction ports 74 are provided so as to surround the.

The vacuum suction head 72 also serves as the first disk pressing means.

The second disk transfer means 80 comprises an arm 81 that reciprocally rotates in a horizontal plane, and a vacuum suction head 82 mounted on the tip of the arm 81. Arm 8
1 not only rotates but also moves up and down, and the vacuum suction head 82
Develops so-called gate motion.

The structure of the vacuum suction head 82 is shown in FIG.
The vacuum suction head 82 has a circular shape in a plan view, and has a double structure of a core portion 83 and an outer ring portion 84. The core portion 83 and the outer ring portion 84 are slidable with each other, and the relative level can be changed by a power mechanism or a spring mechanism (not shown).

A plurality of vacuum suction ports 8 are provided on the lower surface of the core portion 83.
5 are provided. The vacuum suction port 85 is the fitting guide core 5
It is for adsorbing 2. A plurality of vacuum suction ports 86 are provided on the lower surface of the outer ring portion 84. The vacuum suction port 86 is for sucking the second disk 3. The vacuum suction ports 85 and 86 have different vacuum paths and can generate suction force independently of each other.

Next, the operation of the disk laminating apparatus 10 will be described with reference to FIGS.

In FIG. 7, the second disc supply means (not shown) moves the second disc 3 onto the second disc preparation table 50.
I have been carrying. The second disk preparation table 50 is a preparation table for the one in which the index table 13 is held at a position away from the second disk transfer means 80. On the second disk preparation table 50, the fitting guide core 52 is seated in the recess 51, and the second disk 3
Waiting for.

In FIG. 8, the second disk 3 is placed on the second disk preparation table 50. The center hole 6 of the second disk 3 is fitted in the fitting guide core 52. Index table 1 after the second disk supply means is retracted
3 rotates 180 degrees, and the second disk 3 is placed under the vacuum suction head 82 of the second disk transfer means 80.
The disk preparation table 50 is moved.

FIG. 9 shows a state where the vacuum suction head 82 sucks the second disk 3 together with the fitting guide core 52 and lifts it from the second disk preparation table 50.

FIG. 10 shows the second disc 3 and the fitting guide core 5.
2 shows a state in which the vacuum suction head 82 that has suctioned 2 is moved onto the sticking work table 20 by the rotation of the arm 81.
This pasting work table 20 is an index table 11
It is the table held by the side closer to the second disk transfer means 80.

FIG. 11 shows a state in which the vacuum suction head 82 is lowered and the fitting guide core 52 is fitted in the small diameter portion 22 of the centering core 21. This stops the lowering of the core 83.
The lowering of the outer ring portion 84 still continues.

In FIG. 11, the first disk preparation table 40
There is also movement. That is, the first disk supply means (not shown) has carried the first disk 2 onto the first disk preparation table 40. This first disk preparation table 40
Is a preparation table which is held by the index table 12 at a position away from the first disc transfer means 70.

FIG. 12 shows a state in which the outer ring portion 84 of the vacuum suction head 82 is lowered to the position where the second disk 3 contacts the upper surface of the sticking work table 20. As a result, the second disc 3 moves from the fitting guide core 52 to the centering core 21.
Was transferred to the large-diameter portion 24. Here, the vacuum suction passage 36 on the attachment work table 20 side starts suction. The vacuum suction port 86 of the outer ring portion 84 cuts off suction.

Further, in FIG. 12, the first disc 2 is placed on the first disc preparation table 40 in such a manner that the center hole 5 of the first disc 2 is fitted into the centering core 41. The first disc supply means is then retracted.

FIG. 13 shows a state in which the vacuum suction head 82 is lifted while leaving the second disk 3 behind. Since the vacuum suction port 85 of the core portion 83 continues suction, the fitting guide core 85
Rises together with the vacuum suction head 82 and is pulled out from the centering core 21.

Negative pressure remains in the vacuum suction port 86 for a while even after the vacuum suction port 86 has stopped suction. Due to this negative pressure, the second disk 3 tries to follow the vacuum suction head 82. However, since the perforated layer 35 has already sucked the second disc 3 at this time, the second disc 3 does not turn up and the second disc 3 does not wrinkle due to the turn-up.

In FIG. 14, the vacuum suction head 82 moves onto the second disk preparation table 50. Instead, the peeling unit 60 approaches the second disk 3 and peels the anti-adhesion film from the adhesive layer 4. After that, the index table 11 is rotated by 180 ° and the sticking work table 20 is moved to the side closer to the first disc transfer means 70.

Further, in FIG. 14, the index table 12
Is rotated 180 ° and the first disc preparation table 40 that has received the first disc 2 is moved to the first disc transfer means 7
It arrives below the zero vacuum suction head 72. The vacuum suction head 72 sucks the first disk 2 and lifts it.

In FIG. 15, the vacuum suction head 82 descends,
The fitting guide core 52 was fitted into the recess 51 of the second disk preparation table 50. Further, the vacuum suction head 72 that has sucked the first disk 2 moved onto the sticking work table 20.

In FIG. 16, the vacuum suction head 82 has a core 8
The suction by the vacuum suction port 85 of 3 is cut off, and the fitting guide core 5
2 was left on the second disk preparation table 50 and evacuated. After that, the index table 13 is rotated by 180 °, and the second disk preparation table 50 is moved to a position where the second disk 3 is supplied from the second disk supply means.

Further, in FIG. 16, the vacuum suction head 72 is lowered to fit the center hole 5 of the first disk 2 into the small diameter portion 22 of the centering core 21. Due to the depth of the recess 73, the first disc 2 is attached to the shoulder portion 25 of the centering core 21.
Before hitting the center of the centering core 2
Hit the top surface of No. 1 and start pushing down the centering core 21. The first disc 2 and the centering core 21 will then sink together.

In FIG. 17, the vacuum suction head 72 is lowered to the position where the first disk 2 is pressed against the second disk 3. As a result, the first disk 2 and the second disk 3 are joined together via the adhesive layer 4. The centering core 21 is also lowered in such a manner that the compression coil spring 31, which is the centering core supporting means 30, is compressed.

In FIG. 18, the disc 1 constructed by bonding the first disc 2 and the second disc 3 by the adhesive layer 4 is shown.
The vacuum suction head 72 lifts above the sticking work table 20. Thereafter, the vacuum suction head 72 places the disk 1 on the first disk preparation table 40. After that, the vacuum suction head 72 cuts off the suction, and the disk 1 is evacuated while remaining on the first disk preparation table 40.

In response to this, the index table 12 is rotated by 180 °, and the first disk preparation table 40 on which the disk 1 is placed is moved to the first disk supply position. Then, the disc take-out means (not shown) takes out the disc 1. The emptied first disk preparation table 40 waits for the next first disk 2. On the other hand, in the second disk preparation table 50, the second disk supply means has already carried the next second disk 3.

Although one embodiment of the present invention has been described above, other various modifications can be made without departing from the scope of the invention. For example, it is possible to improve the quality of the disk by bonding the first disk and the second disk in a vacuum chamber so that the bonding surface does not contain bubbles.

[0047]

The present invention has the following effects.

According to the present invention, a first disc having a central hole and a second disc having a central hole having a diameter larger than that of the first disc are provided on either or both disc surfaces. When laminating via a layer, the second disk is placed on the pasting work table by fitting the center hole into the large diameter part of the centering core which is provided on the pasting work table in a variable height, and then Since the first disk having the center hole of the first disk fitted in the small diameter portion of the centering core is lowered together with the centering core by the first disk pressing means and pressed against the second disk, the bonding is performed. The first disk and the second disk are attached to each other with their centers properly aligned, and this can be realized with a simple configuration.

In addition, since the centering core does not change in height and can sink, even if something is attached to the centering core and the dimension in the height direction of the centering core changes, the second disk of the first disk can be changed. There is no hindrance to access to. Therefore, the first disc can be pressed against the second disc reliably and uniformly.

Further, in the present invention, since the vacuum suction head, which is a constituent element of the first disk transfer means, is also used as the first disk pressing means, it is not necessary to separately provide the first disk pressing means, and the structure is simple. Can be

Further, according to the present invention, when the center hole of the second disk is fitted to the large diameter portion of the centering core, the second
The center hole of the second disc is fitted to the fitting guide core on the disc preparation table, and the fitting guide core and the second disc in the fitted state are placed on the sticking work table by the second disc transfer means. So that the fitting guide core is fitted to the small diameter portion of the centering core and then the second disc is pushed down to move the second disc from the fitting guide core to the large diameter portion side of the centering core. Because it was
Even if the second disk has poor rigidity and is easily bent, its center hole can be reliably fitted to the centering core. When the second disc is an extremely thin one such as a light transmissive sheet of an optical disc, the effect brought about by this configuration is particularly large.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a disc bonding apparatus of the present invention.

FIG. 2 is a cross-sectional view of a sticking work table.

FIG. 3 is a side view of a first disc preparation table.

FIG. 4 is a sectional view of a second disk preparation table.

FIG. 5 is a sectional view of a vacuum suction head for the first disk.

FIG. 6 is a sectional view of a vacuum suction head for a second disk.

FIG. 7 is a first explanatory diagram of a disc bonding work.

FIG. 8 is a second explanatory diagram of the disc bonding work.

FIG. 9 is a third explanatory diagram of the disc bonding work.

FIG. 10 is a fourth explanatory diagram of the disc bonding work.

FIG. 11 is a fifth explanatory diagram of the disc bonding work.

FIG. 12 is a sixth explanatory view of the disc bonding work.

FIG. 13 is a seventh explanatory view of the disc bonding work.

FIG. 14 is an eighth explanatory diagram of the disc bonding work.

FIG. 15 is a ninth explanatory diagram of the disc bonding work.

FIG. 16 is a tenth explanatory diagram of the disc bonding work.

FIG. 17 is an eleventh explanatory diagram of the disc bonding work.

FIG. 18 is a twelfth explanatory view of the disc bonding work.

FIG. 19 is a sectional view of the disc.

FIG. 20: Front view of disk

[Explanation of symbols]

1 disc 2 first disc 3 second disk 4 Adhesive layer 5, 6 center hole 10 Disc bonding device 11, 12, 13 Index table 20 Sticking work table 21 Centering core 22 Small diameter part 24 Large diameter part 25 shoulders 30 Centering core support means 31 Compression coil spring 40 First Disk Preparation Table 50 Second Disk Preparation Table 52 Fitting guide core 60 peeling unit 70 First Disk Transfer Means 72 Vacuum suction head (first disc pressing means) 80 Second disk transfer means 82 Vacuum suction head

Claims (3)

[Claims] 1. An adhesive layer comprising a first disk having a central hole and a second disk having a central hole having a diameter larger than the central hole of the first disk on one or both disk surfaces. A disk laminating apparatus for laminating via a disk, comprising the following configurations (a) to (f):
What carries out the steps (a) to (c): (a) a sticking work table (b) a small diameter portion that fits in the central hole of the first disc,
The large-diameter portion that fits the center hole of the second disk is arranged vertically so that the former is on the upper side and the latter is on the lower side, and a shoulder portion is formed between them, and from the lower surface of the sticking work table. Centering core protruding toward the upper surface (c) Centering core supporting means (d) First disk transfer means (e) Second disk transfer for supporting the centering core with respect to the attachment work table in a variable height Means (f) First disc pressing means (ii) When the large diameter portion of the centering core is projected onto the pasting work table, the second disc is moved by the second disc transfer means to the pasting work table. Carrying the second disk and placing the second disk on the sticking work table with its center hole fitted in the large diameter portion of the centering core (b) transferring the first disk Means for carrying the first disk onto the sticking work table and fitting the center hole of the first disk into the small diameter portion of the centering core (c) the first disk and the centering core (1) A step of lowering with a disc pressing means to press the first disc against the second disc. 2. The disk bonding apparatus according to claim 1, wherein a vacuum suction head, which is a component of the first disk transfer means, is also used as the first disk pressing means. 3. The disk bonding apparatus according to claim 1 or 2, further comprising the following (g) and (h):
And (d) a second disc preparation table (h) a fitting guide core (d) detachably mounted on the second disc preparation table. ) Step of fitting the center hole of the second disk into the fitting guide core placed on the second disk preparation table (e) The fitting guide core in the fitted state and the second disk The step of carrying the fitting guide core to the small diameter portion of the centering core by carrying it over the pasting work table by the second disk transfer means (f) pushing down the second disk, and then from the fitting guide core. Transferring to the large diameter side of the centering core.