JP3469052B2 - Information disc bonding method and apparatus - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disk bonding method and apparatus for bonding two disks by using an ultraviolet curable adhesive.

[0002]

2. Description of the Related Art Conventionally, when two discs are attached to each other, the single plate discs before the attachment are often stacked in a stacker. In this case, a protrusion called a stack ring is formed on the inner circumference of the discs so that the stacked discs do not stick to each other.

From the plurality of discs stacked in such a state, one by one is taken out and bonded by the take-out device.

[0004]

By the way, the veneer discs before being laminated are often thin and light in weight as compared with the surface area thereof. For example, PDs and DVDs have a thickness of 0.6 mm, a diameter of 120 mm, and a weight of 6 to 10 g.
It is a degree. In such a state, the force of sticking due to static electricity is close to the weight of the disc itself, and there is a high possibility that two discs will stick when the disc is taken out. This is the same when the surface of the single plate disk has a sticky feeling.

On the other hand, since the single plate disc is thin, it is likely to be deformed. Therefore, if the number of sheets loaded on the stacker is too large, the discs are likely to be deformed, adhere to each other, and firmly adhere to each other. In this case, there are many cases where three or more disks are stuck. However, when three or more disks are stuck together in this way, the disks have already been deformed, so it is difficult to obtain a normal bonded disk even if such disks are stuck together.

Among the above-mentioned disk sticking, the sticking of two disks due to static electricity or the like easily occurs even if care is taken so that the number of disks accumulated is not excessive. If the disk bonding device is stopped each time it occurs, there is a problem in that the mobility of the device is greatly reduced.

Further, since the disks are not so closely attached as to be deformed, there is a high possibility that a normally bonded disk can be produced even if the disks, which are stuck together due to static electricity or the like, are peeled from each other and bonded together. However, there is a problem in that it is wasteful to discard the disc by judging this as abnormal.

According to the present invention, when two discs are laminated with an adhesive and the discs are adhered by curing the adhesive, the two discs are stuck before the adhesive is applied. It is an object of the present invention to provide an information disk bonding method and an information disk bonding method in which the operating rate of the information disk bonding apparatus does not decrease even if it occurs.

[0009]

SUMMARY OF THE INVENTION The present invention uses an adhesive.
Information to harden the above adhesive by stacking two discs together
In the disc bonding method, the above
Before supplying the adhesive to the disc,
Place on each disk cradle once and make it adsorb
And the disc mounted on the disc pedestal.
Irradiate light on the areas of the wall where no coating is formed.
Check the number of discs above according to the amount of reflected light.
The number of sheets to be output and the above
If it is detected that there are two sheets,
Discs that peel off the above discs where
The peeling step and the above two disks through the adhesive.
Overlap and rotate the above two disks at high speed
Disc laminating characterized by having a fast rotation stage
It is a combination method.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a plan view showing a disk bonding apparatus 10 which is an embodiment of the present invention.

In FIG. 1, a disk bonding apparatus 1
Basically, 0 is a device for transporting the disks from the first stacker ST1 and the second stacker ST2 toward the rotary table T3.

That is, the lower disk DS1 placed on the first stacker ST1 is sent to the ejection table T1 and the liquid adhesive is applied thereto, while the second stacker S1.
After the upper disc DS2 placed on T2 is sent to the switching table T2, the lower disc D is placed on the lower disc DS1 placed on the discharge table T1.
It is held in a state of facing S1 and transferred to the coater house CH1 or CH2 to spread the adhesive between the disks DS1 and DS2 to form an adhesive disk DS3. That is, the adhesive disc DS3 is a disc in which a liquid ultraviolet-curable adhesive is sandwiched between the lower disc DS1 and the upper disc DS2, and these discs constitute a single disc. The adhesive disk DS3 is carried to the end surface processing house EH, and when the end surface processing of the adhesive disk DS3 is completed, it is transferred to the rotary table T3.

Quartz stands QS1, QS2, QS3, QS, which are pedestals made of quartz, are mounted on the rotary portion of the rotary table T3.
4, QS5, QS6, QS7, QS8 are fixed at equal intervals, and one adhesive disk DS3 is placed on one of these eight quartz stands QS1 to QS8.
3, one quartz plate QB is placed, that is, the bonding disk DS3 is sandwiched between the quartz table QS and the quartz plate QB, and passes through the ultraviolet irradiation device UV1. When the adhesive disc DS3 is irradiated with ultraviolet rays, the liquid adhesive that has been sandwiched is cured, and the lower disc DS1 and the upper disc D
S2 and S2 are fixed to each other.

Then, the quartz plate QB placed on the adhesive disc DS3 is removed, and the adhesive disc DS3 is transferred to the ejection stacker ST3 one by one by the transfer arm A4.
Stacked. The adhesive disc DS3 stacked on the ejection stacker ST3 is a completed disc and is called an information disc DS4.

By the way, the lower disk DS1 placed on the first stacker ST1 is moved by the suction head BH1 to the disk receiving base DR1 and the disk reversing unit D1.
And is sent to the discharge table T1. The suction head BH1 is controlled by the disc transport arm DTA1, and as shown in FIG. 2, the suction heads BH1 ₁ and BH1 ₂
Have and.

Further, the lower disk DS1 placed on the first stacker ST1 is adsorbed by the adsorption head BH1 ₁ , placed on the disk receiving base DR1, and then adsorbed again by the adsorption head BH1 ₂ . The disc inverting unit D1 is placed at the position P2. Further, the disc pedestal DR1 can detect the number of discs placed on the disc pedestal DR1 and can adsorb the discs placed on the disc pedestal DR1 from below.

Next, the operation of the above embodiment will be described. First, the normal operation will be described.

FIG. 2 shows the suction head B in the above embodiment.
It is a figure which shows operation | movement of H1 ₁ and BH1 ₂ , and operation | movement in disk cradle DR1, and is a figure which shows the normal time when one disk DS1 is conveyed.

The suction heads BH1 ₁ and BH1 ₂ constituting the suction head BH1 move in conjunction with each other,
It is controlled by the disc transport arm DTA1. In addition, the lower disc DT mounted on the stacker ST1
1, when the suction head BH1 ₁ is located above the disk ₁ , the suction head BH1 ₂ is located above the disk cradle DR1,
On the other hand, when the suction head BH1 ₁ is located on the disk receiving base DR1, the suction head BH1 ₂ is located on the position P2 of the disk reversing unit D1. Since these disk receiving trays DR1 and DR2 do not need to rotate, they are often fixed.

Therefore, in FIG. 2A, the disc DS1 placed on the disc receiving base DR1 has been conveyed by the suction head BH1 _{1. In} the next step, the suction head BH1 ₁ moves to the _{first position} . The stacking head BH1 ₂ is moved above the first stacker ST1 and at the same time, the suction head BH1 ₂ is moved above the disk receiving base DR1. This state is the state shown in FIG.

In the state shown in FIG. 2 (1), the number of discs placed on the disc receiving base DR1 is detected, and the suction heads BH1 ₁ and BH1 ₂ are gradually lowered by the disc transport arm DTA1. As shown in FIG. 2B, the suction head BH1 ₁ sucks the disk placed on the stacker ST1,
₂ sucks the disk placed on the disk pedestal DR1, and as shown in FIG. 2C, the suction head BH1 ₁
The disc attracted by is conveyed to the disc receiving base DR1, and the disc adsorbed by the adsorption head BH1 ₂ is conveyed toward the position P2 of the disc reversing unit D1. In the state shown in FIG. 2C, the disk cradle DR1
There are no discs mounted on.

By repeating the operations shown in FIGS. 2 (1) to 2 (3), the discs are always conveyed to the disc reversing unit D1 one by one.

Next, in the above embodiment, the disc DS
A description will be given of an abnormal operation in which the two discs 1 are stuck together and the two discs DS1 are adsorbed and conveyed together.

FIG. 3 shows the suction head B in the above embodiment.
FIG. 6 is a diagram showing the operation of H1 ₁ and BH1 _{2 and} the operation of the disk cradle DR1, showing the operation for coping with an abnormality in which two disks DS1 are stuck and two disks DS1 are adsorbed and conveyed together. FIG.

In FIG. 3A, the disk cradle DR1
The disk DS1 mounted on the disk is a suction head BH1.
_In the next step, the suction head BH1 ₁ moves above the first stacker ST1 and the suction head BH1 ₂ is transported by the first stacker ST1. Is the disk cradle DR
Move above 1. This state is the state shown in FIG.

Here, the fact that the number of disks placed on the disk receiving table DR1 is two is detected by the detecting means described later, and the suction heads BH1 ₁ and BH1 ₂ are gradually moved by the disk transport arm DTA1. Down to
As shown in FIG. 3 (2), the suction pad of the suction head BH1 ₁ comes into contact with the disc mounted on the stacker ST1, and the suction pad of the suction head BH1 ₂ is mounted on the disc cradle DR1. Touch the existing disc.

Then, the adsorption head BH1 ₂ adsorbs the upper disc of the two discs placed on the disc receiving base DR1, and at the same time, the disc receiving base DR1.
The suction means provided in 1 sucks the lower disk of the two disks placed on the disk receiving table DR1, and in this state, the disk transport arm DTA1 causes the suction heads BH1 ₁ and BH1. Pull ₂ up. In this case, the suction head BH1 ₁ is the stacker ST1.
Does not adsorb the disc mounted on.

Then, as shown in FIG. 3 (3), the suction head BH1 ₁ moves toward the disk cradle DR1 without picking up anything, and the suction head BH1 ₂ picks up the disk on which it is sucked. To the position P2 of the disc reversing unit D1
Transport towards. In the state shown in FIG. 3C, the number of disks placed on the disk cradle DR1 is one. Then, the suction head BH1 ₂ moves the disc attracted by the suction head BH1 _{2 to} the position P2
Then, the suction heads BH1 ₁ and BH1 ₂ reach above the stacker ST1 and the disk pedestal DR1 without adsorbing anything, and reach the state shown in FIG. 2 (1). The normal cycle shown in FIGS. 2 (1) to 2 (3) is repeated.

That is, when two discs are attached, the discs are always conveyed one by one to the disc reversing unit D1 by executing the operations shown in FIGS. Even if they are conveyed from the stacker ST1 with the discs stuck together, the disc reversing unit D1 and the ejection table T
No. 1 does not need to generate an alarm and the disk laminating apparatus 10 does not have to be stopped because one disk is always conveyed to the No. 1 disk.

Then, as shown in FIG. 3 (1), if two discs are placed again on the disc cradle DR1 in a stacked manner, the operations shown in FIGS. 3 (1) to 3 (3) are performed. To restore the normal condition.

Next, the disk cradle D in the above embodiment
R1 will be specifically described.

FIG. 4 is a diagram showing a specific example of the disc pedestal DR1 in the above embodiment, FIG. 4 (1) is a plan view of the disc pedestal DR1, and FIG. 4 (2) is FIG.
FIG. 4 is a vertical cross-sectional view taken along the line II ′ of FIG.
FIG. 3C is a vertical sectional view taken along the line II-II ′ of FIG.

The disc cradle DR1 is parallel to its axis,
Adsorption holes h1 to h8 and a sensor hole h9 are provided, and the adsorption holes h1 to h8 are connected to a vacuum source (not shown) via a solenoid valve 201 shown in FIG. Further, a photoelectric sensor SE that detects that a disc is placed on the disc cradle DR1 is provided around the disc cradle DR1.

A fiber sensor F is provided in the sensor hole h9, and this fiber sensor F is used as a light projecting fiber F1.
And a light receiving fiber F2. The light projecting fiber F1 guides light from a light source such as a light emitting diode (not shown), and emits the light to the lower surface of the disk placed on the disk receiving stand DR1, and the light receiving fiber F2 is The light reflected by the disc mounted on the disc cradle DR1 is received, and the light is guided to a light receiving element (not shown).

FIG. 5 is a diagram showing the configuration around the suction head BH1 ₂ and the disk receiving base DR1 in the above embodiment.

The suction head BH1 ₂ is a suction pad PD.
1, PD2 and vacuum channel 104, and vacuum channel 104
Is connected to a vacuum source via a solenoid valve 101.
The solenoid valve 101 has a spring 102 and a coil 103. When the suction pads PD1 and PD2 come into contact with the disc mounted on the disc cradle DR1, the signal 4 is output, the coil 103 is activated, the valve is opened against the spring 102, The vacuum flow path 104 communicates with the vacuum source, and the suction head BH1 ₂ sucks the disk.

Further, a fiber sensor amplifier 300 and a control device 400 are provided. The fiber sensor amplifier 300 is an LE that sends out light to the light projecting fiber F1.
It has a light emitting element such as D, a light receiving element such as a phototransistor that converts an optical signal received from the light receiving fiber F2 into an electric signal, and an amplifying element that amplifies the electric signal converted by the light receiving element. . The control device 400 is
The electromagnetic valves 101 and 201 are controlled based on the output signal of the fiber sensor amplifier 300 and the output signal of the photoelectric sensor SE.

The suction head BH1 ₁ is a suction head BH1.
Similar to the case of ₂ , the suction pads PD1 and PD2 and the vacuum channel 104 are provided, and the suction head BH1 ₂ is provided around the suction pads PD1 and PD2.
Similarly to the case of 1, the solenoid valve 101 is provided. However, when the suction head BH1 ₁ reaches the disk mounted on the first stacker ST1, the suction head BH1 ₁ normally sucks the disk, but the suction head BH1 ₁ is mounted on the first stacker ST1. When the suction head BH1 ₁ reaches the top of the loaded disk, if two disks are placed on the disk holder DR1, the suction head BH1 ₁
Differs from the suction head BH1 ₂ in that it is controlled so as not to suck the disk.

FIG. 6 is a diagram showing a threshold value setting state in the fiber sensor F and a reference for discriminating the number of disks in the control device 400 in the above embodiment.

That is, if the signals 2 and 3 are OFF while the photoelectric sensor SE detects the presence of the disk in the disk cradle DR1, the disk cradle DR1
It can be determined that the number of the discs mounted on the disc is one, and if the signal 2 is ON and the signal 3 is OFF, it can be determined that the number of the discs mounted on the disc cradle DR1 is two. If both the signal 2 and the signal 3 are ON, it can be determined that the number of the discs mounted on the disc cradle DR1 is three or more.

FIG. 7 shows the controller 40 in the above embodiment.
It is a flow chart which shows operation of 0.

First, a signal 1 indicating that a disc is placed on the disc cradle DR1 is sent to the photoelectric sensor SE.
Is output (S1), it indicates that the transfer of the disk to the disk pedestal DR1 by the suction head BH1 ₁ is completed. At this time, if the amplifier 300 does not output the signal 2 (S2), the disk pedestal DR1 is output. It can be determined that only one disc was placed on the disc (S11), and the disc cradle D
The suction by R1 is turned off, and the suction head BH1 ₂ sucks and takes out the disk placed on the disk receiving table DR1 (S12).

At this time, if the disk to be supplied next remains in the first stacker ST1 (S13), the process returns to step S1 and if the disk to be supplied next does not remain in the first stacker ST1. (S13), suction head B
The supply of the disk by H1 ₁ is stopped.

Then, the signal 1 indicating that the disc is placed on the disc cradle DR1 is sent to the photoelectric sensor S.
When E outputs (S1), the amplifier 300 outputs the signal 2 (S2) and does not output the signal 3 (S3), it is determined that only two discs are placed on the disc cradle DR1. If it is possible (S21), the suction via the suction holes h1 to h8 provided in the disc pedestal DR1 is kept ON, and the disc is placed on one of the two discs mounted on the disc pedestal DR1. The loaded disk is sucked by the suction head BH1 ₂ and only the upper disk is taken out (S22). That is, at this time, the signal 5
Is output, and the suction holes h1 to h8 are output via the solenoid valve 201.
Is connected to a vacuum source, and the disc mounted on the lower side of the two discs mounted on the disc pedestal DR1 is adsorbed to the disc pedestal DR1 and, as described above, Of the two disks mounted on the disk support DR1, the disk mounted on the upper side is sucked by the suction head BH1 ₂ , so that the two disks are separated from each other.

In this case, the disk cradle DR1
Since there is still one disk left in the suction head BH
1 ₁ there is no need to perform the supply of the disk from the stacker ST1 by, Stacker S by the suction head BH1 ₁
The supply of the disc from T1 is stopped (S23), and the process returns to step S1.

On the other hand, the signal 1 indicating that the disc is placed on the disc cradle DR1 is sent to the photoelectric sensor SE.
When the amplifier 300 outputs the signal 2 and the signal 3 (S1, S3) (S2, S3), the disk cradle DR
It can be determined that three or more discs have been placed on top of 1 (S
4), an alarm is issued and the operation of the disc bonding apparatus 10 is stopped (S5).

In FIG. 5, when the control device 400 is, for example, a programmable controller, it is preferable to connect a photocoupler to the input side thereof for insulation. It should be noted that if even one disk is placed on the disk cradle DR1, it is possible to detect the disk regardless of whether the disk is transparent or with an aluminum reflector, so that one of the light receiving fibers F2 can be detected. The end face is placed sufficiently close to the disk, and the end face of the light receiving fiber F2 is placed sufficiently close to the light receiving element. Alternatively, the sensitivity of the light receiving element is increased.

Further, the disc of the disc cradle DR1 is sucked by the suction holes h1 to h8, and further, the suction hole h1.
Since the sensor hole h9 is provided substantially in the middle between the sensor holes h9 and h8, the distance between the tip of the fiber sensor F provided in the sensor hole h9 and any part of the lower surface of the disk on the disk cradle DR1 or DR2 is , And can be set to have a constant interval, and therefore the number of disks can be accurately detected even if the disk is made of a material having relatively high transparency.

In the above embodiment, the fiber sensor F
Uses a type capable of setting two outputs. Further, when carrying and detecting the disc with the aluminum reflection film, the end face of the fiber sensor F is arranged aiming at the region near the central hole where the aluminum film is not attached. Therefore, the fiber sensor F is embedded in the disk cradle DR1. Since there is some reflected light even in the transparent portion of the disc, the reflected light increases as the discs overlap (the number of discs increases).

In this case, although the threshold setting for discriminating the number of discs is generally quite delicate, the fiber sensor F is embedded in the disc cradle DR1 and the disc cradle DR1 is used to suck the discs. If the number of sheets is detected, the disk and fiber sensor F
The distance from the end face of the is stable, and the error included in the detection result is reduced.

In the embodiment shown in FIG. 5, a number signal indicating the number of discs mounted on the disc receiving base DR1 is output based on the amount of light received from the light receiving fiber F2. Alternatively, at this time, the solenoid valves 101 and 201 may be controlled according to the number of output disks.

That is, the output signal of the light-receiving element that receives light from the light-receiving fiber F2 and converts it into an electric signal is input to the non-inverting input terminals of the first comparator, the second comparator, and the third comparator, respectively. The first reference power supply, the second reference power supply, and the third reference power supply are connected to the inverting input terminals of the comparators 1, 2, and 3, respectively, and the first reference power supply,
If the second reference power source and the third reference power source are set so that their output voltages gradually increase and only the first comparator outputs, the disc mounted on the disc cradle DR1 Is one, and only the first and second comparators output, when there are two disks placed on the disk cradle DR1 and all the first, second, and third comparators output. Alternatively, it may be determined that the number of disks placed on the disk cradle DR1 is three or more.

The suction head BH1 ₁ is an example of the first transporting means for transporting the disk existing at the first position to the disk pedestal, and the suction head BH1 ₂ is mounted on the disk pedestal. It is an example of the 2nd conveyance means which conveys the existing disc to the 2nd position. Also, the disk cradle DR1
Is an example of the number detecting means for detecting the number of the discs placed on the disc receiving base. When the number detecting means detects that the number of the discs placed on the disc receiving base is two, 2 It is an example of a disc peeling means for peeling one disc from another.

Further, in the above embodiment, the first position is the position of the stacker on which the plurality of disks are placed, but it may be a position other than the stacker. That is, the above embodiment may be applied at a position other than the case where the disc is conveyed from the stacker to the disc reversing unit.

In the above embodiment, the first conveying means and the second conveying means are realized by different suction heads or the like. However, one conveying means conveys from the stacker to the disk cradle, and The disc may be transported from the disc cradle to the disc inverting unit DI or the switching table T2 by the same one transporting means as described above.

Further, a disk receiving base DR2 similar to the disk receiving base DR1 is provided, and a suction head BH2 similar to the suction head BH1 is provided. That is, the upper disc DS2 placed on the second stacker ST2 is sent to the disc receiving stand DR2 and the switching table T2.
Further, the upper disk DS2 placed on the second stacker ST2 is adsorbed by the adsorption head BH2, placed on the disk receiving base DR2, and then adsorbed again by the adsorption head BH2, and the position P12 of the switching table T2 is reached. Placed on. The suction head BH2 is a disc transfer arm D.
Controlled by TA2, the suction head BH2 has suction heads BH2 ₁ and BH2 ₂ . Further, the disc pedestal DR2 can detect the number of discs placed on the disc pedestal DR2, and can adsorb the discs placed on the disc pedestal DR2 from below.

Further, the adhesive disk DS3 may be a disk in which two disks are superposed with an adhesive other than the ultraviolet-curing adhesive.

The point of the above-mentioned embodiment is that when two discs are often stuck to each other due to static electricity or the like, the two discs are stuck together without stopping the disc pasting device, and the pasting process is performed. Is the point to do. However, even if two sheets are stuck together, if they are strongly stuck to each other and cannot be peeled off, the disk sticking device is stopped and an alarm is issued. That is, if the peeling operation is performed once and the peeling mechanism causes a suction error, it is detected as a peeling abnormality. When three or more sheets are attached, the device is stopped without performing the peeling operation and an alarm is generated.

[0059]

According to the present invention, when two discs are laminated with an adhesive and the discs are bonded by curing the adhesive, the dedisc is prepared before the application of the adhesive. Even if two sheets stick together, the operation rate of the information disk sticking device is not lowered.

[Brief description of drawings]

FIG. 1 is a plan view showing a disk bonding device 10 according to an embodiment of the present invention.

FIG. 2 is a diagram showing the suction heads BH1 ₁ and BH in the above embodiment.
12 is a diagram showing the operation of 1 _{2 and} the operation of the disc cradle DR1, and is a diagram showing a normal state in which the discs DS1 are conveyed one by one. FIG.

FIG. 3 is a diagram showing an operation for coping with an abnormality in which two discs DS1 are stuck and two discs DS1 are adsorbed and conveyed together.

FIG. 4 is a diagram showing a specific example of a disk cradle DR1 in the above embodiment.

FIG. 5 is a diagram showing a configuration around a suction head BH1 ₂ and a disk pedestal DR1 in the above embodiment.

FIG. 6 is a diagram showing a threshold value setting state in the fiber sensor F and a reference for discriminating the number of discs in the control device 400 in the embodiment.

FIG. 7 is a flowchart showing an operation of the control device 400 in the above embodiment.

[Explanation of symbols]

10 ... Disc laminating device, DS1 ... Lower disc, DS2 ... Upper disc, DR1, DR2 ... Disc pedestal, BH1 ₁ , BH1 ₂ , BH2 ₁ , BH2 ₂ ... Adsorption head, DTA1, DTA2 ... Disc transport arm, T1 ... Discharging table, T2 ... Switching table, DS4 ... Information disc.

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hironobu Nishimura Inventor Hironobu 1-18-1 Takada, Toshima-ku, Tokyo Within Origin Electric Co., Ltd. (56) Reference JP-A-8-297868 (JP, A) JP-A 9-17039 (JP, A) JP 5-20714 (JP, A) JP 6-111379 (JP, A) JP 6-333273 (JP, A) JP 5-45129 (JP, A) JP-A-9-136723 (JP, A) Actual development 4-133635 (JP, U) Actual development 3-76838 (JP, U) Actual development 4-53739 (JP, U) (58) Survey Fields (Int.Cl. ⁷ , DB name) G11B 7/26

Claims (4)

(57) [Claims] 1. Overlapping two disks with an adhesive,
In an information disc laminating method for curing the adhesive, the discs are temporarily placed on respective disc pedestals before the adhesive is supplied to the discs to be laminated.
Placing and adsorbing; irradiating light to a portion of the disc placed on the disc pedestal on which a coating film is not formed, and irradiating the disc depending on the amount of the reflected light. A disc number detecting step for detecting the number of discs; and a disc peeling stage for peeling the discs detected to be two when the number of discs is two in the disc number detecting step. A high-speed rotation step in which the above-mentioned two disks are overlapped via the adhesive and the above-explained two disks are rotated at a high speed; 2. The method of claim 1, when detected by the number detecting step that the disc is placed on the disk receiving base is not less than three, laminated information disc the apparatus is stopped, issues an alarm A method for laminating information discs, which comprises steps. 3. Overlapping two disks with an adhesive,
For information disc bonding device that cures the above adhesive
And a disc pedestal; the disc present in the first position is the disc pedestal
First transporting means for transporting the disk to the second disk ;
Second transporting means for transporting the disk to the position; the number of the disks mounted on the disk receiving table
A disc number detecting means for detecting the number of discs mounted on the disc receiving table.
When the above-mentioned number of sheets detecting means detects that
Disc peeling means for peeling the discs from each other; and the number detecting means detects the reflection amount of the light projected on the disc, and outputs a signal according to a preset threshold value and the reflection amount of the light. An information disk laminating device, which is a detector for transmitting the information. 4. Overlapping two discs with an adhesive,
For information disc bonding device that cures the above adhesive
And a disc pedestal; the disc present in the first position is the disc pedestal
First transporting means for transporting the disk to the second disk ;
Second transporting means for transporting the disk to the position; the number of the disks mounted on the disk receiving table
A disc number detecting means for detecting the number of discs mounted on the disc receiving table.
When the above-mentioned number of sheets detecting means detects that
Peeling a disc separating means together disc; has, the disc receiving base is provided with a suction hole and the sensor hole for adsorbing the disc, the number detecting means comprises a light sensor, the light sensor A disk bonding apparatus, characterized in that the disk bonding apparatus is arranged in the sensor hole.