JP2009255464A - Laminate molding device laminate molding method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a laminates molding device structurally simplified, low priced, having a short molding cycle time and inhibiting molding defects due to resin leakage or resin hardening, and a laminate molding method. <P>SOLUTION: This laminate molding device comprises: a pair of molds 40, each having a slide mold with a plurality of cavity surfaces, which is spaced from a cavity side part; a mold clamping unit 10 for opening/closing the molds; and a plurality of injection units 20 and 30, for injecting a molten resin into a cavity formed by clamping the molds, which are disposed in the axial direction and a direction crossing the axial direction, of the mold clamping unit. In addition, a securing means is provided which can remove the injection units disposed at a nozzle securing part for molding of the slide mold in the axial direction and the crossing direction. Besides, the transfer means of the injection units transfers the slide mold to a predetermined molding position by securing the injection units to the slide mold. Also, the method of molding the laminate is provided. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a molding apparatus and a molding method for obtaining a laminated product by injection molding a resin into a laminated state by primary molding and secondary molding using a slide mold.

For example, Patent Document 1 proposes a molding apparatus and a molding method for obtaining a laminated product by injection molding a resin into a laminated state by primary molding and secondary molding using a slide mold.
The molding apparatus includes a movable mold attached to a movable platen, a primary mold and a secondary mold that are mounted in parallel and slidably in a lateral direction with respect to the fixed platen, and a primary and secondary mold with respect to the movable die. It comprises a moving means for selectively facing the molding die, a secondary molding injection unit disposed in the axial direction of the molding apparatus, and a primary molding injection unit disposed in a direction intersecting the axis of the molding apparatus.

For the molding of the laminated product, first, the primary mold and the movable mold are faced and clamped, and then the nozzle of the primary molding injection unit is brought into contact with the sprue bush of the primary mold and filled with the molten resin. Mold the product.
Next, the movable mold leaving the primary molded product is opened, and the moving means is driven to clamp the secondary mold so as to face the movable mold.
Then, the nozzle of the secondary molding injection unit is brought into contact with the sprue bush of the secondary molding die, filled with molten resin, and integrated with the primary molded product to form a laminated product.
JP-A-7-144356

However, the conventional multi-layer product forming apparatus described above is configured such that the sprue bush and the nozzle provided in the primary forming die and the secondary forming die that are attached to the fixed plate and slide come into contact with each other, and each time the die is slid The nozzle must be separated from the bush. For this reason, molding failure occurs due to leakage of the resin from the nozzle or sprue bushing, or solidification of the resin to block the resin flow path.
Further, since the nozzle is moved and separated from the sprue bush at each primary and secondary molding, there is a problem that a wasteful cycle time is required and a molding cycle becomes long.

In addition, since the primary mold and the secondary mold are arranged on the stationary platen as slide molds, and the slide molds have moving means for facing the movable molds, the structure of the molding apparatus is complicated and expensive. Expensive.
An object of the present invention has been made in view of the above-described conventional problems, and is an apparatus for forming a laminated product in which an apparatus is simplified and inexpensive, a molding cycle time is short, and molding defects due to resin leakage and resin solidification are prevented. It is to provide a molding method.

According to a first aspect of the present invention, there is provided a laminated product molding apparatus comprising: a pair of molds having a slide mold having a plurality of cavity surfaces spaced from a fixed mold; a mold clamping unit for opening and closing the mold; A molding apparatus comprising a primary molding and secondary molding injection unit for filling a cavity formed by closing a mold with a molten resin, and molding a laminate by primary molding and secondary molding, the injection Either one of the units is disposed so as to be movable back and forth in the axial direction of the molding apparatus, and the other one is disposed so as to be movable back and forth in the direction intersecting with the axis direction of the molding apparatus, and in the direction intersecting with the axis direction of the molding apparatus. Nozzle locking means for detachably attaching the injection unit is provided at the slide type nozzle locking portion that is locked by the nozzle of the injection unit that is arranged so as to be able to advance and retreat.
According to a second aspect of the present invention, there is provided a molding apparatus for a laminated product according to the first aspect, wherein the injection unit disposed so as to be movable forward and backward in the axial direction of the molding apparatus is used for primary molding and intersects with the axial direction. The injection unit arranged so as to freely move forward and backward was used for secondary molding.

According to a third aspect of the present invention, there is provided a molding apparatus for a laminated product according to the first aspect, wherein the injection unit arranged in a direction intersecting with the axial direction of the molding apparatus is used for primary molding, and can advance and retreat in the axial direction. The injection unit arranged in was used for secondary molding.
According to a fourth aspect of the present invention, there is provided a molding apparatus for a laminated product according to any one of the first to third aspects, wherein the injection unit and the mold are arranged so as to be movable forward and backward in the axial direction of the molding apparatus. The molten resin flow path connecting the cavities is formed by a first flow path provided with an opening on the fixed parting surface and a second flow path provided on the movable parting surface. The first flow path and the second flow path thus communicated with each other.

  According to a fifth aspect of the present invention, there is provided a method for forming a laminated product, comprising: a pair of molds having a slide mold provided with a plurality of cavity surfaces spaced apart from a fixed mold; and a mold clamping unit for opening and closing the mold. A molding method for molding a laminate by primary molding and secondary molding using a primary molding and secondary molding injection unit that fills a cavity formed by closing a mold with a molten resin, the slide The movement of the mold to a predetermined molding position is performed by being driven by the moving means of any one of the injection units in which the slide mold is locked.

According to a sixth aspect of the present invention, there is provided a method for molding a laminated product according to the fifth aspect, wherein the foamed resin is mixed with one of the injection units for primary molding or secondary molding. It was decided to use.
The method for molding a laminated product according to claim 7 of the present invention is the method according to claim 5 or 6, wherein the fixed mold secondary molding cavity is made of metal, resin, natural material, or the like. Then, it was decided to insert and insert the auxiliary parts formed in a predetermined shape in advance.

  In the laminated product molding apparatus according to the present invention, either one of the injection units is disposed so as to be movable forward and backward in the axial direction of the molding apparatus, and the other is disposed so as to be movable forward and backward in the direction intersecting with the axial direction of the molding apparatus. In addition, the slide-type nozzle locking portion that is locked by the nozzle of the injection unit that is arranged so as to be movable back and forth in the direction intersecting the axial direction of the molding apparatus is provided with a nozzle locking means that allows the injection unit to be detachable. The nozzle and the slide mold are not separated even when the slide mold moves. For this reason, resin leakage or resin solidification does not occur from the nozzle or the mold, and it is possible to prevent molding defects and shorten the molding cycle.

In addition, since the molten resin flow path connecting the injection unit and the mold cavity arranged in the axial direction of the molding apparatus and the mold cavity is provided on the fixed mold and the movable parting surface, avoiding the slide mold The slide mold can be moved while the nozzle is in contact with the mold. For this reason, resin leakage and resin solidification do not occur from the nozzle or the mold, and molding defects can be prevented.
Furthermore, since the slide-type moving means is not provided in the fixed mold, the molding apparatus can be simplified and made inexpensive.

In the method for molding a laminated product according to the present invention, the movement of the slide mold to a predetermined molding position is performed in a state where the slide mold and the injection unit arranged in the direction intersecting with the axial direction of the molding apparatus are locked. Since it is driven by the moving means of the injection unit arranged in the direction intersecting with the axial direction of the molding apparatus, an effect that a large molded product can be obtained as compared with the conventional method can be exhibited.
Since the nozzle of any injection unit is not separated when the slide mold is moved, the molding cycle can be shortened.

In addition, since a resin in which a foaming agent is mixed with the resin to be laminated (foaming agent mixed resin) is used, it is a laminated product that has a foamed layer, has a soft feeling, is lightweight, and has excellent heat insulation and sound insulation properties. Can be obtained. Furthermore, since the nozzle of the injection unit is not separated from the mold, the foam component of the foaming agent mixed resin does not leak, and a laminated product having a high-quality foam layer can be obtained.
In addition, since inserts are made by laminating auxiliary parts that have been pre-formed in a predetermined shape with metal, resin, natural material, etc., the molded product surface is decorated and laminated products with excellent design and product strength A laminated product with improved can be obtained.
Here, the auxiliary part refers to a processed product mainly used for the purpose of improving the designability and strength of the molded product.

  Hereinafter, embodiments of a molding apparatus and a molding method for a laminated product according to the present invention will be described. However, the present invention should not be construed as being limited thereto, and a person skilled in the art within the scope not departing from the scope of the present invention. Based on this knowledge, various changes, modifications, and improvements can be made. For example, the drawings show preferred embodiments of the present invention, but the present invention is not limited by the information shown in the drawings. In practicing or verifying the present invention, means similar to or equivalent to those described in the present specification can be applied, but preferred means are those described below. In the following description, general techniques, known techniques, and general-purpose techniques are omitted.

First, an embodiment for carrying out the present invention will be described with reference to the drawings. 1 to 5 relate to a form for carrying out the present invention, and FIG. 1 is a plan view showing an entire configuration of a molding apparatus according to the present embodiment. 2A and 2B are configuration diagrams of the locking means between the nozzle and the slide mold of the injection unit arranged in the direction intersecting with the axial direction of the molding apparatus. FIG. 2A shows the locked state and FIG. 2B shows the locked state. It is sectional drawing which shows a state. FIGS. 3A and 3B are diagrams showing a moving state of the slide mold, wherein FIG. 3A is a front view in a primary molding state, and FIG. 3B is a front view in a secondary molding state.
4 is a cross-sectional view of the main part showing the primary molding state, and FIG. 5 is a cross-sectional view of the main part showing the secondary molding state. In the present embodiment, an injection unit arranged in the axial direction of the molding apparatus is a primary injection unit, and an injection unit arranged in a direction crossing the axial direction is a secondary injection unit. Hereinafter, a description will be given with reference to FIGS.

As shown in FIG. 1, a molding apparatus 100 used in an embodiment of the present invention includes a mold clamping unit 10, a primary molding injection unit 20, a secondary molding injection unit 30, a mold 40, and a mold clamping (not shown). A unit 10 and a control device for controlling the primary molding injection unit 20 and the secondary molding injection unit 30 are provided.
A mold clamping unit 10 shown in FIG. 1 includes a fixed platen 1, a movable platen 2, and a mold clamping cylinder 3 using a hydraulic pump as a drive source. The movable platen 2 is installed between the fixed platen 1 and the mold clamping cylinder 3. It is guided by the tie bar 4 and can move forward and backward with respect to the stationary platen 1 by the piston rod 5 of the clamping cylinder 3.

The primary molding injection unit 20 is slidable in the axial direction of the molding apparatus 100, and the secondary molding injection unit 30 is slidable in the direction intersecting with the axis of the molding apparatus 100. , 30 is configured to include a moving means that can be brought into and out of contact with a nozzle locking portion formed in the mold 40. Here, the direction intersecting the axis of the molding apparatus 100 is a direction horizontal to the axis and parallel to the stationary platen 1.
In any of the above injection units, when the screw is rotated by the screw rotating means, the resin molding material supplied from the hopper is supplied into the barrel and melted by heating, and a predetermined amount of the molten resin is injected into the mold from the nozzle tip. 40 can be injection filled.

  The mold 40 is attached to the fixed platen 1 and is slidably arranged in a direction intersecting with the axis of the molding apparatus 100, and a fixed die 41 having a slide die 42 provided with a plurality of cavity surfaces at intervals, and the movable platen 2. And a movable mold 43 having a single core surface that is clamped opposite to the plurality of cavity surfaces. The secondary molding nozzle locking portion on the end face of the slide mold 42 has a locking means 50 that can be attached to and detached from the secondary molding injection unit 30.

As shown in FIG. 2, the locking means 50 is attached to the secondary molding injection unit 30 nozzle locking portion on the end surface of the slide mold 42, and basically includes a locking block 52 and a drive cylinder 51. The locking block 52 is attached to the piston rod of the drive cylinder 51 and is guided by the guide hole to lock the nozzle 32 of the secondary molding injection unit 30. The locking position shown in FIG. It moves between the release positions shown in FIG.
Since the locking portion of the nozzle 32 and the locking block 52 is in contact with an inclined surface, the nozzle 32 is pressed against the sprue bush 47 in a locked state, and a gap is formed between the nozzle 32 and the sprue bush 4. There is nothing to do. Then, the slide mold 42 can be moved to a predetermined molding position by moving the secondary molding injection unit 30 at the locking position shown in FIG.

As shown in FIG. 3, the slide mold 42 has a primary molding cavity surface 45 and a secondary molding cavity surface 46 at an interval, and a predetermined primary molding position and secondary molding facing the movable mold 43. The position is moved by the moving means of the secondary molding injection unit 30.
The position shown in FIG. 3A where the primary molding cavity surface 45 faces the movable mold 43 at the approximate center position of the molding apparatus is the primary molding position, and the secondary molding cavity surface 46 is movable at the approximate center position of the molding apparatus. The position shown in FIG. 3B facing the mold 43 was taken as the secondary molding position. Movement to the primary molding position is performed by moving the secondary molding injection unit 30 in the backward direction of the screw, and movement to the secondary molding position is achieved by moving the secondary molding injection unit 30 in the forward direction of the screw. Do.
When the mold is exchanged after the molding is completed, or when the nozzle 32 is exchanged, by moving the locking block 52 of the locking means 50 to release the locking between the nozzle 32 and the slide mold 42, Only the secondary molding injection unit 30 can be moved back and forth. In addition, illustration of the latching means 50 is abbreviate | omitted in FIG.

  As shown in FIG. 4, the first flow path 71 of the resin filling the molten resin into the primary molding cavity formed by clamping the slide mold 42 and the movable mold 43 so as to face each other has an opening on the parting surface. The fixed die 41 is formed so as to avoid the slide die 42. A second flow path 73 is formed on the parting surface of the movable mold 43 facing the opening 74 of the parting surface, and the primary molding injection unit 20 and the primary molding cavity communicate with each other via the nozzle 22. It has become. A flow path opening / closing means 72 is provided in the vicinity of the opening 74.

As shown in FIG. 5, the resin flow path 76 for filling the molten resin into the secondary molding cavity formed by clamping the movable mold 43 holding the primary molded product and the slide mold 42 to face each other is provided as parting. The slide mold 42 is formed with an opening 75 on the surface. A resin flow path 78 is formed on the parting surface of the movable mold 43 facing the opening 75 of the parting surface, and the secondary molding injection unit 30 and the secondary molding cavity communicate with each other through the nozzle 32. It has become. A flow path opening / closing means 77 is provided in the vicinity of the opening 75.
Reference numeral 80 denotes a spare part, which is supplied to the secondary molding cavity 46 by means of a conventional robot device or the like, and is, for example, fixed to the cavity surface by suction means and insert molded.

It is preferable that the resin flow paths 71 and 76 provided in the fixed mold 40 and the slide mold 42 are constituted by hot runners, and the flow channel opening and closing means 72 and 77 are formed by hot chips or valve gates.
In addition, filling of the resin for secondary molding is performed through the resin flow path 78 provided in the movable mold 43, and the trace of the gate is the back surface configuration of the molded product, but the opening 75 of the resin flow path 78 is secondary molded. The structure formed in the cavity surface 46 may be sufficient.

Next, an embodiment of a method for forming a laminated product according to the present invention will be described. First, it demonstrates in the formation process of a primary molded product.
First, with the secondary molding injection unit 30 moved forward and brought into contact with the slide mold 42, the locking means 50 is driven to bring the nozzle 32 and the slide mold 42 into a locked state, The primary molding cavity surface 45 is moved to the primary molding position facing the movable mold 43 by the moving means of the secondary molding injection unit 30. Thereafter, the mold clamping piston 5 is operated to clamp the movable mold 43 to the fixed mold 41, and a primary molding cavity is formed between the movable mold 43 and the slide mold 42.

Next, a predetermined amount of molten resin from the primary molding injection unit 20 passes through the nozzle 22, the sprue bush 48, the first resin flow path 71, the resin flow path opening / closing means 72, and the second resin flow path 73. The cavity is filled. At this time, the resin channel opening / closing means 72 is open. Thereby, the primary molded product 61 is obtained.
After the primary molding, the mold clamping piston 5 is operated to move the movable mold 43 leaving the primary molded product 61 away from the fixed mold 41. Then, with the nozzle 32 and the slide mold 42 kept in a locked state, the secondary molding cavity surface 46 of the slide mold 42 is opposed to the movable mold 43 by the moving means of the secondary molding injection unit 30. Move to. At this time, the nozzle 22 of the primary molding injection unit 20 is kept in contact with the sprue bush 48.

After the slide mold 42 has moved to a predetermined secondary molding position, the mold clamping piston 5 is operated again, and the movable mold 43 is clamped to the fixed mold 41, whereby the primary molded product 61 and the slide mold 42 of the movable mold 43 are clamped. Between these, a secondary molding cavity is formed. In this state, a predetermined amount of molten resin from the secondary molding injection unit 30 passes through the nozzle 32, the sprue bush 47, the resin flow channel 76, the resin flow channel opening / closing means 77, and the resin flow channel 78, and the secondary molding cavity. To fill. At this time, the resin channel opening and closing means 77 is open. Thus, a laminated product 60 in which the secondary molded product 62 is laminated on the primary molded product 61 is obtained. In the case where the auxiliary part 80 is inserted and molded, if it is supplied to the secondary molding cavity surface 46 in the mold open state after the primary molding, a laminate 60 in which the auxiliary part 80 is inserted is obtained. It is done.
After the laminated product 60 is formed, the mold clamping piston 5 is operated to move the movable die 43 away from the fixed die 41 to open the mold, and then the laminated product 60 is extruded from the movable die 43 by an unillustrated extrusion means. Complete molding.

  Next, foam molding in the embodiment of the present invention will be described. By mixing a foaming agent into one of the primary molding injection unit 20 or the secondary molding injection unit 30 and filling the cavity, a laminate having a foamed layer can be obtained. For example, when a molten resin mixed with a foaming agent is filled from the primary molding injection unit 20 shown in FIG. 4 into the primary molding cavity, a laminated product in which the base material becomes a foamed layer is obtained, and FIG. When the molten resin mixed with the foaming agent is filled from the secondary molding injection unit 30 shown into the secondary molding cavity, a laminate having a foam layer as the surface layer is obtained.

  And a chemical foaming agent and a physical foaming agent are used for the foaming agent mixed with molten resin. For the form of foam molding, it is preferable to use a full shot method in which a molten resin containing a foaming agent having the same amount as the cavity volume is filled, and then the cavity volume is expanded by a predetermined amount and foamed. In addition, it is more preferable to use a gas counter pressure method in which a gas is filled in a cavity at a predetermined pressure to fill a resin with the full shot method in terms of improving the surface property of the foam layer.

  In the present invention, the primary molding injection unit is arranged in the axial direction of the molding machine, and the secondary molding injection unit is arranged in a direction intersecting with the axial direction of the molding machine. However, as another embodiment, the primary molding injection unit is arranged. Was arranged in the direction intersecting with the axial direction of the molding machine, and the secondary molding injection unit was arranged in the axial direction of the molding machine. Although a detailed description of the molding method is omitted, the primary molding and secondary molding described above are reversed. When no slide mold is used, either one of the injection units can be used for normal injection molding with the injection unit arranged in the axial direction or injection molding from the parting surface with the injection unit arranged in the axial direction. It is.

  The insert molding of a spare part formed in advance in a predetermined shape with a metal, resin, natural material or the like in the embodiment of the present invention will be described. A spare part formed in advance in a predetermined shape with metal, resin, natural material or the like is inserted into the cavity surface and fixed, and then the cavity is filled with molten resin and laminated. By inserting the auxiliary parts, the surface of the molded product is decorated and a laminated product having excellent design can be obtained. For example, a spare part is attached to the cavity surface 46 shown in FIG. 3B in a known manner, and the movable mold 43 holding the primary molded product 61 is clamped. By filling the secondary molding cavity formed between the primary molded product 61 and the auxiliary part with molten resin from the secondary molding injection unit 30, a laminated product whose surface is decorated with the auxiliary part is obtained. . The foam molding described above may be used in the insert molding of the auxiliary part.

As materials for the above-mentioned spare parts, steel materials such as steel and stainless steel, non-ferrous metal materials such as aluminum alloy and copper alloy are used as metal materials, and heat such as thermoplastic resins such as polypropylene resins and urea resins are used as resin materials. As the curable resin, and natural materials, known materials such as fibers such as cotton and silk, leather, paper, wood, and stone are preferably used.
Further, the supply of the spare parts to the mold can be performed by using conventional means such as a general-purpose robot apparatus.

As described above, in a conventional molding apparatus using a slide mold that is arranged so as to be movable in the lateral direction intersecting the axis of the molding apparatus and includes a moving means, each time the mold is slid, the nozzle is moved from the sprue bush. Separate. For this reason, the resin leaks from the nozzle or sprue bushing, the resin solidifies and the resin flow path is blocked, etc., or the nozzle is moved away from the sprue bushing for each primary and secondary molding. For this reason, there is a problem in that useless cycle time is required and the molding cycle becomes long.
In the molding apparatus according to the present invention, since the nozzle is not separated from the mold when the mold is slid, the molding cycle can be shortened. Further, molding defects caused by separating the nozzle from the mold can be prevented, and the molding cost can be reduced. And since it was set as the structure which does not provide a slide type moving means in a fixed type | mold, the shaping | molding apparatus was reduced in size and it was able to reduce especially die cost.
Furthermore, it was possible to obtain a laminated product having excellent design properties and a laminated product having excellent strength by inserting a replacement part and decorating the surface of the molded product.

It is a top view which shows the whole structure of the shaping | molding apparatus of this invention. It is a block diagram of the latching means of the nozzle and slide type | mold of the injection unit arrange | positioned in the direction which cross | intersects the axial direction of this invention, (a) shows a locked state, (b) shows the state which released the latching. It is sectional drawing. It is a figure which shows the movement state of the slide type | mold of this invention, (a) is a front view of a primary molding state, (b) is a front view of a secondary molding state. It is sectional drawing of the principal part which shows the primary shaping | molding state of this invention. It is sectional drawing of the principal part which shows the secondary shaping | molding state of this invention.

Explanation of symbols

10 Clamping unit 20 Injection unit for primary molding (arranged in the axial direction of the molding machine)
30 Injection unit for secondary molding (arranged in the direction crossing the axial direction of the molding equipment)
40 Mold 41 Fixed mold 42 Slide mold 43 Movable mold 45 Cavity surface for primary molding 46 Cavity surface for secondary molding 50 Locking means 60 Laminated product 71 First resin flow path 73 Second resin flow path 80 Supplementary parts 100 Molding equipment

Claims (7)

A pair of molds having a slide mold provided with a plurality of cavity surfaces spaced apart from a fixed mold, a mold clamping unit for opening and closing the mold, and a primary filling the cavity formed by closing the mold with molten resin A molding apparatus comprising a molding and secondary molding injection unit, and molding a laminated product by primary molding and secondary molding,
Either one of the injection units is disposed so as to be movable back and forth in the axial direction of the molding apparatus, and the other one is disposed so as to be movable back and forth in the direction crossing the axial direction of the molding apparatus.
Nozzle locking means for attaching and detaching the injection unit is provided in the slide type nozzle locking portion that locks the nozzle of the injection unit that is arranged so as to be able to advance and retreat in the direction intersecting the axial direction of the molding apparatus. A device for forming laminated products.   The injection unit arranged to be movable forward and backward in the axial direction of the molding apparatus is used for primary molding, and the injection unit arranged to be movable forward and backward in the direction intersecting with the axial direction is used for secondary molding. Molding device for laminated products.   2. The laminate according to claim 1, wherein an injection unit arranged in a direction intersecting with an axial direction of the molding apparatus is used for primary molding, and an injection unit arranged so as to be movable back and forth in the axial direction is used for secondary molding. Molding equipment. The molten resin flow path connecting the injection unit disposed in the axial direction of the molding apparatus and the cavity of the mold is movable with the first flow path provided with an opening in the fixed parting surface. 4. The method according to claim 1, further comprising a second flow path provided on the mold parting surface, wherein the formed first flow path and the second flow path are communicated with each other. The apparatus for forming a laminated product according to 1. A pair of molds having a slide mold provided with a plurality of cavity surfaces spaced apart from a fixed mold, a mold clamping unit for opening and closing the mold, and a primary filling the cavity formed by closing the mold with molten resin A molding method for molding a laminate by primary molding and secondary molding using a molding and secondary molding injection unit,
The method for molding a laminated product, wherein the movement of the slide mold to a predetermined molding position is driven by the moving means of any one of the injection units with which the slide mold is locked.   6. The method for molding a laminated product according to claim 5, wherein a molten resin mixed with a foaming agent is used for either the primary molding unit or the secondary molding unit.   7. The auxiliary molding formed in advance in a predetermined shape with a metal, resin, natural material, or the like is inserted into the fixed mold secondary molding cavity and laminated and molded. The molding method of the laminated product in any one.

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