JP2002182010A - Method for separating laminate, and separation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To separate a laminate consisting of a die and a molding without damaging the grooves for formation of a lens. SOLUTION: While the center part of the laminate (6) of the die (2) and the molding (3) is pressed, the peripheral part of one layer is pulled in a plurality of positions at a time to the opposite direction to the pressing direction so that the layer is separated from the peripheral part of the other layer and that the separation is made to proceed to the center part to separate the molding (3) from the die (2). Separation between the die and the molding is made to proceed from the peripheral part to the center part in such a manner that the part once separated is not brought into contact again with the corresponding part. Thus, the molding can be separated from the die without damaging the grooves for formation of the lens.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for separating a molded article such as a lens sheet molding die and an intermediate mold from a mother die, and an apparatus therefor.

[0002]

2. Description of the Related Art Japanese Patent Application Laid-Open No. 1-174418 discloses a method of manufacturing various lens sheet forming dies for forming a Fresnel lens sheet, a lenticular lens sheet, and the like used for a transmission screen or the like.

In this method, it is uneconomical to prepare a large number of cutting dies for forming a lens sheet. Therefore, a molding die is made of resin, and a metal having a molding surface opposite to that of a Fresnel lens is used. After injecting a thermosetting resin into the mold and heating and curing, peel off from the metal mold to obtain an intermediate mold, inject another thermosetting resin into this intermediate mold, heat and cure, then peel off from the intermediate mold. To obtain a resin mold.

[0004]

A resin mold is inferior in strength, moldability, mold release property, etc. as compared with a metal mold. Therefore, a large number of metal molds are duplicated using a cutting mold as a master mold. Is desirable. Therefore, the present inventor made a metal intermediate mold by electroforming using the cutting mold as a mother mold, and made a metal mold by electroforming using the intermediate mold as a mother mold. When the formed intermediate mold or the forming mold is peeled off from the mother mold, inconveniences such as damaging the lens forming groove are caused.

According to the present invention, a method and an apparatus for forming a molded body such as an intermediate mold and a molding die on a mother die and then peeling the molded body from the mother die without damaging the lens forming grooves from each other are provided. The purpose is to provide.

[0006]

Means for Solving the Problems To achieve the above object, the invention according to claim 1 is directed to a center of a laminated body (6, 20) of a matrix (2, 3) and a molded body (3, 1). By pressing a plurality of portions of the peripheral portion of one layer in the opposite direction to the pressing direction while pressing the portion, separating from the peripheral portion of the other layer and advancing the separation to the central portion, the matrix (2, 3) ) And the molded product (3, 1).

According to the first aspect of the present invention, the separation between the matrix (2, 3) and the molded body (3, 1) is advanced from the peripheral edge toward the center, and the once separated portion is re-entered. Peel without contact. Therefore, the mother die (2, 3) and the molded body (3, 3) do not damage the groove for lens formation.
1) can be exfoliated.

According to a second aspect of the present invention, when the one layer of the laminate (6, 20) is separated from the other layer, the other layer is fixed at a fixed position. Is adopted.

According to the second aspect of the present invention, one of the layers is peeled off after fixing the other layer at a fixed position.
It can proceed smoothly peeling.

According to a third aspect of the present invention, in the first or second aspect, a locking edge (5) for separating is formed at a peripheral portion of one layer of the laminate (6, 20). A method of peeling the laminate is adopted.

According to the third aspect of the present invention, since the tool or the like can be locked on the locking edge (5) of the peripheral portion of one layer, the separating operation is simplified.

According to a fourth aspect of the present invention, there is provided the laminated body according to any one of the first to third aspects, wherein a central portion of the laminated body (6, 20) is pressed via an elastic means (11). A peeling method is adopted.

According to the fourth aspect of the present invention, since the elastic means (11) absorbs the impact force caused by the separation of the central portion of the laminate (6, 20), the separation of the laminate is facilitated. You.

According to a fifth aspect of the present invention, there is provided the laminate according to any one of the first to fourth aspects, wherein the molded body (3, 1) is formed on the matrix (2, 3) by electroforming. Adopt a body peeling method.

According to the fifth aspect of the present invention, even if the molded body (3, 1) and the matrix (2, 3) are in close contact with each other by electroforming, they can be separated smoothly.

[0016] The invention according to claim 6 is characterized in that the matrix (2,
3) A pressing means (11) for pressing a central portion of a laminate (6, 20) of a molded body (3, 1), and a plurality of locations on a peripheral portion of one layer are pulled in a direction opposite to the pressing direction. A laminate peeling device including a separating means (14a) that separates from the other peripheral portion and advances the separation to the central portion is employed.

According to the sixth aspect of the present invention, the separation between the matrix (2, 3) and the molded body (3, 1) is advanced from the peripheral edge toward the center, and the once separated portion is re-entered. It is peeled without contacting. Therefore, the mother die (2, 3) and the molded body (3, 3) do not damage the groove for lens formation.
1) can be exfoliated.

Further, the invention according to claim 7 is characterized in that the matrix (2,
3) A fixing means (2) for fixing one of the layers in a fixed position when the laminate (6, 20) of the molded body (3, 1) is separated.
The laminate peeling device according to claim 6, which is provided with 1), is adopted.

According to the seventh aspect of the present invention, one layer is peeled off after the other layer is fixed at a fixed position.
Peeling can proceed smoothly.

The invention according to claim 8 employs the laminate peeling device according to claim 6, wherein the pressing means is constituted by an air cylinder (11).

According to the eighth aspect of the present invention, the air of the air cylinder (11) absorbs the impact force caused by the separation of the central portion of the laminate (6, 20). ) Is facilitated.

According to a ninth aspect of the present invention, the separating means has a plurality of wedge pieces (14a) which are engaged with a peripheral portion of one layer of the laminate. Adopt a peeling device.

According to the ninth aspect of the present invention, the plurality of wedge pieces (14a) are engaged with the peripheral edge of one layer of the laminated body (6, 20), and are separated from the peripheral edge of the other layer. The layers (6, 2) are removed by moving
0) can be easily and reliably peeled off.

[0024]

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

As shown in FIG. 1, the lens sheet molding die 1
Is formed in a rectangular plate, the surface of which is provided with a molding surface 1a for molding a lens sheet, and the back surface is a smooth surface. The lens sheet molding die 1 is formed as a Fresnel lens molding die, and the molding surface 1a has a large number of concentric circular lens forming grooves. Of course the lens sheet mold 1 can also be made as a mold for the lenticular lens sheet or the like other lens sheet is not limited to a Fresnel lens, in which case the forming grooves of the corresponding lens is formed on the shaping surface. Further, the shape of the lens sheet molding die 1 may be any shape as long as the molding surface 1a can be provided, and may be, for example, a square or a circle.

In order to produce the lens sheet molding die 1, first, a molded body as an intermediate mold 3 is prepared by using the cutting die 2 as a master die in the process shown in FIG.

As shown in FIG. 2A, a mother die including a cutting die 2 in which a lens forming groove is formed is prepared. The cutting die 2 is formed by cutting a lens forming groove in a metal plate such as brass or steel by turning or the like. For a Fresnel lens, the lens forming groove is cut concentrically and formed in an opposite shape to the Fresnel lens.

A masking material 4 for masking is attached around the cutting mold 2 as needed. Masking material 4
Is provided, as shown in FIGS. 2B and 2C,
The plating layer of the intermediate mold 3 is prevented from adhering to the end surface around the cutting mold 2, and the locking edge 5 is easily formed on the peripheral edge of the intermediate mold 3.

Next, as shown in FIG. 2 (B), after the mold release surface 2a of the cutting die 2 is subjected to a release treatment or the like, the intermediate die 3 is formed on the cutting die 2 by electroforming. Intermedia 3 nickel, it is produced in a relatively hard metal such as chromium. Thereby, the laminated body 6 in which the intermediate mold 3 is in close contact with the molding surface 2a of the cutting die 2 is produced. Since the electroforming is performed by a known method, the description thereof is omitted.

After the intermediate die 3 is formed on the cutting die 2, the masking material 4 is removed from the cutting die 2, as shown in FIG. 2C, to expose the peripheral edge of the intermediate die 3. Next, a wedge-shaped tool 23 is inserted between the layers of the cutting die 2 and the intermediate die 3, and the layers are peeled off to form the locking edges 5. Peeling of the layers can also be performed by utilizing the fluid pressure or the like other means without depending on the tool 23. The locking edge 5 may be provided on the entire circumference of the intermediate mold 3 or may be provided intermittently.

Thereafter, as shown in FIG. 2 (D), while pressing the central portion of the laminated body 6 of the intermediate mold 3 and the cutting mold 2, the locking edge 5 of the peripheral edge of one of the layers is moved in the pressing direction. By pulling simultaneously in the opposite direction, the separation between the layers proceeds from the peripheral edge to the center. Specifically, while applying a pressing force to the center of the intermediate mold 3 so as to press the intermediate mold 3 toward the cutting mold 2, a separating force is applied to the peripheral edge of the intermediate mold 3 in a direction opposite to the pressing force. The peripheral part is pushed up above the cutting die 2. Accordingly, delamination proceeds to the central portion from the peripheral portion, the intermediate mold 3 as in FIG. (E) is completely peeled from the cutting die 2. Further, the once separated portions are separated without contacting again. Thereby, the intermediate mold 3 and the cutting mold 2 are separated from each other so as not to damage the lens forming groove.

The reason why the central portion of the intermediate mold 3 is pressed toward the cutting die 2 and the plurality of peripheral portions are simultaneously pushed up above the cutting die 2 is as follows. Based on knowledge.

That is, as shown in FIG. 8, on the Fresnel lens forming surface 2a of the cutting die 2, which is the mother die, the lens forming grooves are formed as acute angle irregularities.
If one side or one portion of the intermediate mold 3 is simply grasped and peeled off to the opposite side without holding down the center portion of the intermediate mold 3, the peeling is caused by the Fresnel lens forming groove as shown in FIG. Of the intermediate mold 3 and the cutting mold 2
The Fresnel lens forming groove may be damaged, and the performance of the Fresnel lens formed later may be reduced. Breakage of the Fresnel lens forming groove occurs in the mold made of a relatively soft material. For example, cutting dies 2 is a mother mold is made of brass, when the intermediate mold 3 is made of nickel, scratched Fresnel lens forming grooves of the matrix.
In FIG. 2B, reference numeral 7 denotes a damaged portion generated in the Fresnel lens forming groove of the cutting die 2 which is the mother die.
Therefore, it is necessary to peel off the intermediate mold 3 from the cutting mold 2 so that the peeling proceeds from the peripheral part toward the central part.

Further, it is also conceivable to take peeled grabbed plurality of positions of the peripheral portion of the intermediate mold 3 at the same time without holding the central portion of the intermediate mold 3, the adhesion between the intermediate die 3 and the cutting die 2 Since the force is usually not uniform but uneven, the peeling does not always proceed uniformly from the peripheral part to the central part, and when the adhesive force is locally large, the peeling is sudden. The intermediate mold 3 stops and bends and the like occur.

It is also conceivable to grasp a plurality of locations around the intermediate mold 3 without holding down the central portion of the intermediate mold 3 and to peel each part up and down sequentially. As shown in (A), by peeling one portion in the direction a and returning it in the direction b, the groove for forming the Fresnel lens of the cutting die 2 is damaged by the groove for forming the Fresnel lens of the intermediate die 3. Reference numeral 8 denotes a damaged portion generated in the groove for forming the Fresnel lens of the cutting die 2 which is the mother die.

As in the present invention, while pressing the central portion of the stacked body 6 of the intermediate mold 3 and the cutting die 2, a plurality of locations on the peripheral edge of one layer are simultaneously pulled in the direction opposite to the pressing direction, and the other is pressed. By separating the intermediate mold 3 from the peripheral edge of the layer, the intermediate mold 3 can be peeled from the cutting mold 2 which is the mother mold without damaging the lens forming groove of the cutting mold 2 or the intermediate mold 3. .

When the peripheral edge of the intermediate mold 3 is pushed up above the cutting die 2, the cutting die 2 is desirably fixed at a fixed position in order to facilitate the peeling. This fixation can be performed by a suction cup, a magnet, a clamp, or the like. Further, in order to reduce the impact force in the final stage of the peeling, the pressing force against the central portion of the laminate 6 is desirably applied through elastic means. As the elastic means, a fluid pressure cylinder, a spring, rubber or the like can be used.

The peeling operation of the laminate 6 composed of the intermediate mold 3 and the cutting die 2 can be performed by using a peeling device shown in FIGS.

This peeling apparatus has a horizontal elevating table 9 on which a laminated body 6 of a cutting die 2 and an intermediate die 3 as a mother die is placed. The elevating table 9 enters and exits the base 10 through a hole 10 a formed in the center of the base 10. The upper surface of the lift table 9, fixing means for fixing are provided to one layer when removing the laminated body 6 in position. The fixing means is composed of a number of suction cups 21 that adsorb the cutting die 2 as the lower layer of the laminate 6 from the lower surface thereof.

Above the elevating table 9, pressing means for pressing the central part of the laminated body 6 of the cutting die 2 as the mother die and the intermediate die 3 as the molded body is arranged. Is
Separation means for simultaneously pulling a plurality of locations on the periphery of one layer of the laminated body 6 fixed on the elevating table 9 in a direction opposite to the pressing direction to separate from the other periphery, and advancing the separation to the center portion is provided. Be placed.

The pressing means is, specifically, an air cylinder 11
It consists of. The air cylinder 11 is vertically fixed on a beam 12 which is hung across the upper part of the elevating table 9, and its rod 11 a projects toward the center of the elevating table 9. A pressing piece 13 which is a hemispherical projection made of rubber, synthetic resin, or the like is attached to a lower end of the rod 11a. By the operation of the air cylinder 11, this pressing piece 1
3 presses the central part of the laminate 6 on the stationary elevating table 9. Note that the laminated body 6 may be pressed by a compression coil spring or the like instead of the air cylinder 11.

The separating means is constituted by a hoist shown in FIGS. A plurality of the hoists are installed on the base 10 so as to surround the stacked body 6 on the lifting table 9,
All hoists are controlled to start simultaneously or independently. Each hoist includes an elevating arm 14, a screw rod 15 that stands vertically on the upper surface of the elevating table 9 screwed to the elevating arm 14, and an erect vertical member with respect to the upper surface of the elevating table 9 that guides the elevating arm 14. And a motor 16 for driving the screw rod 15 to rotate. The rotation of the motor 16 is transmitted to the threaded rod 15 via a transmission 17 composed of a worm gear or the like.

The projects total lifting arm 14 of the crane is cantilevered toward the periphery of the laminated body 6 on the lift table 9,
At the tip of each lifting arm 14, a plurality of wedge pieces 14 a are provided which are locked to the peripheral edge of the intermediate mold 3 which is one layer of the laminate 6.

[0044] Each hoist is installed via the slide plate 25 on the guide plate 24 disposed on the base 10, depending on the size and shape of the laminate 6 by sliding the slide plate 25 on the guide plate 24 Thus, the installation position on the base 10 is changed. By adjusting the installation position, each wedge piece 14a is inserted into the gap formed between the layers of the laminate 6.

Next, the operation of the peeling device will be described.

First, the elevating table 9 on which the laminate 6 has been raised
It is put on the top and fixed on the elevating table 9 by a suction cup 21 as fixing means. The stacked body 6 is placed so that the cutting die 2 as the mother die is in contact with the elevating table 9. As shown in FIG. 2 (C), the periphery of the laminate 6 is delaminated in advance,
The locking edge 5 is formed on the peripheral edge of.

By operating the air cylinder 11 of the pressing means, the central portion of the laminate 6 is pressed onto the lifting table 9 by the pressing piece 13 at the lower end of the rod 11a.

The hoist was moved in parallel on the base 10, and the wedge piece 14 a at the tip of each elevating arm 14 was inserted into the gap between the cutting mold 2 and the intermediate mold 3, and formed on the peripheral edge of the intermediate mold 3. It is locked on the locking edge 5.

Thereafter, the motors 16 of all the hoists are started,
By rotating the screw rod 15, the lifting arm 14 is moved to the guide rod 22.
, And the wedge pieces 14a simultaneously lift a plurality of portions of the peripheral portion of the intermediate mold 3 of the laminate 6. As a result, the intermediate mold 3 is separated from the cutting mold 2 from its peripheral edge toward the center. The intermediate mold 3 is elastically deformed because the central part is pressed, and the intermediate mold 3 elastically returns at the final stage of peeling.
Abruptly peeled off from the cutting die 2 at the same time the air cylinder 1
The first rod 11a is pushed back in the contracting direction. The air cylinder 11 absorbs the impact force at that time by the internal air, and facilitates the peeling operation. The shapes of the lifting table 9 and the base 10 are not limited to the shapes shown in FIG. 4, but may be other shapes. Further, any number of hoists can be installed at diagonal positions of the base 10.

The intermediate mold 3 peeled off from the cutting die 2, which is the mother die, is sent to the next forming die manufacturing process, and the master die is returned to the next electroforming process.

In order to make the above-mentioned lens sheet molding die 1, this intermediate die 3 is used as a mother die as shown in FIG. The intermediate mold 3 has a lens forming groove having the same shape as the Fresnel lens on the molding surface 3a.

A masking material 19 is attached around the intermediate mold 3 as necessary. By providing the masking material 9, as shown in FIGS. 3B and 3C, the plating of the lens sheet molding die 1 is prevented from adhering to the end surface around the intermediate die 3, and the locking edge 5 is formed. A part to be exposed is exposed on the peripheral edge of the intermediate mold 3.

Next, as shown in FIG. 3 (B), after subjecting the molding surface 3a of the intermediate mold 3 to a releasing treatment or the like, the lens sheet molding die 1 as a molded body is placed on the intermediate mold 3 by electroforming. Formed. Thus, a laminate 20 in which the lens sheet molding die 1 is in close contact with the molding surface 3a of the intermediate die 3 is produced. The lens sheet mold 1 is made of a relatively hard metal such as nickel and chromium.

After the lens sheet molding die 1 is formed on the intermediate die 3, as shown in FIG.
Is removed from the intermediate mold 3, which is the mother mold, to expose the periphery of the intermediate mold 3. Next, a wedge-shaped tool 23 is inserted between the layers of the intermediate mold 3 and the lens sheet molding die 1 and the layers are peeled off to form the locking edges 5. Peeled the interlayer can also be performed by utilizing the fluid pressure or the like other means without depending on the tool 23. The locking edge 5 may be provided on the entire circumference of the intermediate mold 3 or may be provided intermittently or locally.

Thereafter, as shown in FIG. 3 (D), while pressing the central portion of the laminated body 20 of the intermediate mold 3 and the lens sheet molding die 1, a plurality of portions of the peripheral portion of one of the layers are aligned with the pressing direction. pulling in opposite directions at the same time is moved away from the periphery of the other layer, thereby advancing the separating to the center portion. Specifically, while applying a pressing force to the center of the intermediate mold 3 so as to press the intermediate mold 3 toward the lens sheet molding die 1, a separating force is applied to the peripheral edge of the intermediate mold 3 in a direction opposite to the pressing force. The peripheral edge is pushed up above the lens sheet mold 1. Thereby, delamination proceeds from the peripheral portion to the central portion, and the intermediate mold 3 is completely peeled off from the lens sheet molding die 1 as shown in FIG. Further, the once separated portions are separated without contacting again. For the same reason as described above, the intermediate mold 3 and the lens sheet mold 1 are separated from each other so as not to damage the lens forming groove. The peeling device used for peeling the laminate 6 between the intermediate mold 3 and the cutting die 2 can be used for the peeling operation of the laminate 20.

The lens sheet mold 1 thus obtained
Has a shape opposite to the lens shape of a Fresnel lens or the like on its molding surface 1a, and is used for molding a lens sheet to mold a lens shape such as a Fresnel lens on a lens sheet made of a rigid resin or the like. .

[0057]

According to the first aspect of the present invention, while pressing the central portion of the laminated body of the mother die and the molded body, a plurality of portions of the peripheral portion of one layer are pulled in the direction opposite to the pressing direction, and the other is pulled. Is separated from the peripheral edge of the layer, and the separation is advanced to the center, thereby separating the mother die and the molded body from each other.Therefore, the separation between the mother die and the molded body is performed from the peripheral edge. It is advanced toward the center, and once separated, it is peeled off without contact. Therefore, the mother die and the molded body can be separated from each other without damaging the lens forming grooves.

According to the second aspect of the present invention, there is provided the method for peeling a laminate according to the first aspect, wherein one layer of the laminate is fixed at a fixed position when the other layer is separated from the other layer. Therefore, one layer can be peeled off after the other layer is fixed at a fixed position, and the peeling can proceed smoothly.

According to the third aspect of the present invention, there is provided the method for peeling a laminate according to the first or second aspect, wherein a locking edge for separation is formed at a peripheral portion of one layer of the laminate. , A tool or the like can be locked to a locking edge of a peripheral portion of one layer,
The separation operation is simplified.

According to the fourth aspect of the present invention, the central portion of the laminate is pressed through the elastic means.
In the method for peeling a laminate according to any one of the above, the elastic means absorbs the impact force caused by the peeling of the central portion of the laminate, and therefore, the peeling of the laminate is facilitated.

According to the fifth aspect of the present invention, there is provided the method for stripping a laminate according to any one of the first to fourth aspects, wherein the molded body is formed on the matrix by electroforming. Thereby, even if the molded body and the mother die are in close contact with each other, they can be separated smoothly.

According to the sixth aspect of the present invention, the pressing means for pressing the central portion of the laminated body of the mother die and the molded body, and a plurality of peripheral portions of one of the layers are pulled in a direction opposite to the pressing direction. Separating device from the other peripheral portion, and a separating device having a separating means for advancing the separation to the center portion, the separation between the matrix and the molded body is advanced from the peripheral portion toward the center portion. Once separated, it can be separated without making contact again. Therefore, the mother die and the molded body can be separated from each other without damaging the lens forming grooves.

According to the invention of claim 7, the fixing means for fixing one of the layers in a fixed position when the laminate of the matrix and the molded body is separated from each other is provided. Since the peeling device is used, one layer can be peeled off after the other layer is fixed at a fixed position, and the peeling can be smoothly performed.

According to the eighth aspect of the present invention, since the pressing device is an air cylinder, the pressing device is constituted by an air cylinder. The air in the air cylinder is absorbed, so that the peeling of the laminate is facilitated.

According to the ninth aspect of the present invention, in the laminating apparatus according to the sixth aspect, the separating means has a plurality of wedge pieces which are locked to a peripheral portion of one layer of the laminated body. Since there are a plurality of wedge pieces, the layers can be separated from each other by being locked to the peripheral portion of one layer of the laminate and moving away from the peripheral portion of the other layer. And it can be peeled off reliably.

[Brief description of the drawings]

1A and 1B show an example of a lens sheet molding die, wherein FIG. 1A is a plan view and FIG. 1B is a vertical sectional view. .

FIG. 2 is an explanatory view showing a process of manufacturing an intermediate mold from a cutting die.

FIG. 3 is an explanatory view showing a process of manufacturing a lens sheet mold from an intermediate mold.

FIG. 4 is a plan view showing a laminate peeling device.

FIG. 5 is a longitudinal sectional view of a peeling device.

FIG. 6 is a sectional view taken along line VI-VI in FIG. 4, showing the hoist of the peeling device.

FIG. 7 shows a hoist of the peeling device, and is VII-VI in FIG.
FIG. 3 is a cross-sectional view taken along line I.

FIG. 8 is a schematic view showing a peeled state of a laminate, and FIG.
Shows a state in which the lens forming groove is damaged by one layer of the laminated body returning to the other layer after peeling, and (B) shows that the peeling of the laminated body proceeds beyond the center of the lens. Indicates that the lens forming groove is damaged.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Lens sheet molding die 2 ... Cutting die 3 ... Intermediate die 5 ... Locking edge 6, 20 ... Laminated body 11 ... Air cylinder 14a ... Wedge piece 21 ... Sucker

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) // B29L 11:00 B29L 11:00

Claims (9)

[Claims] 1. While pressing a central portion of a laminated body of a matrix and a molded body, a plurality of portions of a peripheral portion of one layer are pulled in a direction opposite to a pressing direction to be separated from a peripheral portion of the other layer. A method for separating a laminate, comprising separating a matrix and a molded body by causing separation to proceed to a central portion. 2. The method according to claim 1, wherein when the one layer of the laminate is separated from the other layer, the other layer is fixed at a fixed position. 3. The separating edge according to claim 1, wherein a locking edge for separation is formed at a peripheral portion of one of the layers of the laminated body.
The method for peeling a laminate according to the above. 4. The method for peeling a laminate according to claim 1, wherein a central portion of the laminate is pressed via an elastic means. 5. The method according to claim 1, wherein the molded body is formed on the matrix by electroforming. 6. A pressing means for pressing a central portion of a laminated body of a matrix and a molded body, and a plurality of portions of a peripheral portion of one layer are pulled in a direction opposite to a pressing direction to be separated from the other peripheral portion,
A separating device for causing the separation to proceed to a central portion. 7. The peeling apparatus for a laminate according to claim 6, further comprising fixing means for fixing one layer in a fixed position when separating the laminate of the matrix and the molded body. 8. An apparatus according to claim 6, wherein said pressing means comprises an air cylinder. 9. The peeling apparatus for a laminate according to claim 6, wherein the separating means has a plurality of wedge pieces which are locked to a peripheral portion of one layer of the laminate.