JPS621529A - Manufacture of laminated molded material made of synthetic resin and manufacturing device - Google Patents

Abstract

PURPOSE:To obtain a high-quality laminated molded material which prevents generation of voids and is precise in registration of both first and second molded materials, by performing polymerization joining of both the molded materials under vacuum suction in succession to compression molding of both the molded materials. CONSTITUTION:Generation of voids in first and second molded materials m1, m2 is prevented by so constituting the titled manufacture that air is not involved into flowing molding materials COM1, COM2 by applying vacuum suction to cavities c1, c2 by actuating a vacuum pump 24 at the time of compression molding. A directional control valve 27 is changed over to a blower 28 side by suspending actuation of the vacuum pump 24, a mold clamping state is maintained until both the molded materials m1, m2 become semi-cured, pressurized air is injected into the cavities c1, c2 through an airtight chamber 22 and each of air vent holes 26 of an intermediate mold 13 and the first and second molded materials m1, m2 are released from the intermediate mold 13 by this pressing action. Both the molded materials m1, m2 are made to polymerize precisely and high-quality laminated molded product having no generation of voids is obtained by performing clamping of top and bottom froces 11, 12, again after separation of the intermediate mold 13 within a guide frame 11.

Description

Detailed Description of the Invention A8 Object of the Invention (1) Industrial Field of Application The present invention relates to a method for producing a synthetic resin laminate molded body consisting of a first and a second molded body which are polymerized and bonded to each other. Regarding equipment.

(2) Conventional technology Conventionally, this type of laminate molded product is produced by compression molding a first and a second molded product separately using a molding material made of, for example, a thermosetting synthetic resin, and then releasing the molded products from the mold. They are polymerized and bonded through an adhesive, or they are polymerized and bonded using bolts and nuts.

(3) Problems to be solved by the invention However, when the above method is adopted, mass production is lacking due to the large number of man-hours required for manufacturing the laminated molded product. There is a problem in that air is drawn in and pores are generated in the image molded product, which deteriorates the quality of the laminated molded product.

Furthermore, when using a dedicated molding device for each molded object and a bonding device for the image molded objects when adhesive is used, the manufacturing cost of the device increases and the space occupied by these devices increases. There is also.

An object of the present invention is to provide the manufacturing method and manufacturing apparatus that can solve the problems described above.

B8 Structure of the Invention (Means for Solving Problems 11) The method for producing a synthetic resin laminate molded product according to the present invention is a method for producing a synthetic resin laminate molded product made of fiber-reinforced synthetic resin comprising first and second molded products that are polymerized and joined to each other. In producing a laminate molded product, a compression mold consisting of a first mold, a second mold facing the first mold, and an intermediate mold existing between the two molds is closed, and the first mold and the intermediate mold are closed. vacuum suction is applied between the first mold and the intermediate mold, and between the second mold and the intermediate mold, respectively, so that the first mold is in a semi-cured state.
and a step of simultaneously compression molding the second molded body; opening the compression mold with the first and second molded bodies attached to the first and second molds, respectively, and molding the intermediate mold. separating the first and second molded bodies from between the first and second molds to face each other; closing the first and second molds to polymerize the first and second molded bodies with each other; The method is characterized by using the following steps: joining in a state in which the materials are bonded and completely curing the materials.

Furthermore, the apparatus for manufacturing a synthetic resin laminate molded article according to the present invention includes:
A manufacturing apparatus for manufacturing a fiber-reinforced synthetic resin laminate molded body consisting of first and second molded bodies that are joined together by polymerization, the first and second molds being able to move toward and away from each other; A compression molding mold consisting of an intermediate mold that can be located between a first mold and a second mold, and a first cavity for compression molding the first molded body is provided on both opposing surfaces of the first mold and the intermediate mold. Further, a second cavity for compression molding the second molded body is provided on both opposing surfaces of the second mold and the intermediate mold,
During compression molding of the first and second molded bodies, the intermediate mold is inserted between the first and second molds to polymerize the first and second molds and the intermediate mold to form a closed mold; Said first
and the intermediate mold is movable so that the intermediate mold can separate from between the first and second molds and polymerize the first and second molds to form a closed mold during polymerization and joining of the second molded body. The intermediate mold is provided with a vacuum suction mechanism for applying vacuum suction between the first mold and the intermediate mold and between the second mold and the intermediate mold, especially for compression molding of the first and second molded bodies, The present invention is characterized by comprising first and second attachment mechanisms capable of attaching the first and second molded bodies to the first and second dies, respectively, after compression molding.

(2) Effect According to the above manufacturing method, 1. Since the image molded body is polymerized and bonded subsequent to the compression molding of the second molded body, it is possible to reduce the number of manufacturing steps for the laminate molded body and improve mass productivity. In addition, since the image molded bodies are molded by compression molding under vacuum suction, the generation of pores in these molded bodies is prevented, and then the molded bodies are polymerized and bonded while being attached to the first and second molds, respectively. It is possible to accurately determine the positions of the image molded bodies without aligning them, thereby obtaining a high quality laminate molded body.

According to the manufacturing apparatus, first. The second molded body is molded using one compression mold, and the compression mold is also used for polymerization and bonding of the image molded body, and between the first mold and the intermediate mold, and between the second mold and the intermediate mold, respectively. Since the vacuum suction mechanism for performing vacuum suction is provided in the intermediate mold, the configuration of the device can be simplified, the manufacturing cost can be reduced, and the space occupied by the device can be reduced.

(3) Example Fig. 1 shows a fiber-reinforced synthetic resin laminate molded body, and the laminate molded body has first parts that are polymerized and joined to each other.
and second molded bodies m, , mt. Glass fiber is used as the reinforcing fiber, and unsaturated polyester resin is used as the synthetic resin that is the matrix.゛The manufacturing equipment for laminated molded bodies is mainly the second one. No.
It is constructed as shown in FIGS. 2A, 2B, and 3.

That is, a lower mold 1□ as a second mold is disposed below an upper mold II as a first mold, and the intermediate mold 13 is horizontally movable so that it can be inserted and removed between both molds 1□ and 1□. will be placed. These upper and lower molds 19, 1□ and intermediate mold 13 constitute a compression mold 1. The upper mold 11 has a piston rod 3 of a first pneumatic or hydraulic working cylinder 2. The main mold 12 is connected to the support plate 4 through the support plate 4 and can be raised and lowered freely.
It is fixed to the upper surface of the base 6I via.

When the upper mold II is raised and opened, an intermediate mold holding frame 7 is disposed between the upper mold 11 and the lower mold 1 □, and a support plate for the lower mold 1 □ is provided at the outer edge of the holding frame 7. A plurality of guide pins 8 erected in 5 are slidably passed through the guide pins 5 . A cushion spring 9 is loosely fitted to each guide pin 8 between the holding frame 7 and the support plate 5.
are contracted, and when the mold is opened, the holding frame 7 comes into contact with the enlarged head 8a of each guide pin 8 due to the elastic force of each cushion spring 8, and is positioned above the lower mold 1□.

As clearly shown in FIG. 3, the holding frame 7 has a planar U-shape with one side open, and both opposing parts 7a.

A holding groove IO opening inward is formed on the inner surface of the connecting portion 7b of the opposing portions 7a and 7a.

On the opening side of the holding frame 7, an intermediate mold guide frame 11 is fixed onto the base 6□ via a support member 12 so as to face the holding frame 7 and to be located on the same horizontal plane as the holding frame 7. The guide frame 11 includes both opposing parts 7a and 7a of the holding frame 7.
It is provided with a pair of opposing parts 11a, 11a parallel to , and a connecting part 11b that connects these opposing parts 11a, 11a, and is formed into a U-shape on a plane with one side on the side of the holding frame 7 open.

Guide grooves 13 that open inward are formed on the inner surfaces of both opposing parts 11a, lla and connecting part 11b. The axis line is set on the outer surface of the connecting portion 11b of the guide frame 11 on both opposing portions 11a.
A pneumatic or hydraulic second actuating cylinder 2 □ facing in the longitudinal direction of , lla is fixed, and its piston rod 3z passes through the connecting part 11b of the guide frame 11 and connects both opposing parts 11a.
, lla and both opposing parts 7a, 7a of the holding frame 7 can be expanded and contracted.

Both sides of the intermediate die 13 are slidably engaged with the guide grooves 13 of the opposing portions 11a and lla in the guide frame 11, and the intermediate die 13 and the piston rod 3□ can be in a disconnected state. ．． 14□ are provided respectively. Thus half 14 of coupling mechanism 14. ．． 14□ is in the connected state and the intermediate mold 13 is located within the guide frame 11, the piston rod 3□ of the second working cylinder 2□
When extended, the intermediate mold 13 moves from the guide frame 11 to the holding frame 7.
The intermediate mold 1. slides into the holding groove 10 and abuts the connecting portion 7b. is the upper mold 1. and is positioned relative to the lower die 1z. Half body l 4+ of the connection mechanism 14, 14t
If the piston rod 3z is contracted by blocking the intermediate mold 1.
is left on the holding frame 7.

Intermediate type 1. When detaching from the holding frame 7, the piston rod 3□ is extended again and the half body 14. of the coupling mechanism 14 is removed.
．． 14□ and then contract the piston rod 3□, the intermediate mold 13 will slide into the guide frame 11 from the holding frame 7, and the position of the intermediate mold 13 will be such that the connecting member 14 is aligned with the guide frame 1.
It is regulated by contacting the first connecting portion 11b.

A large recess 15 on the lower surface of the upper mold 11 facing the intermediate mold 13
A protrusion 16 is formed on the upper surface of the intermediate mold 13 facing the upper mold II, and is loosely fitted into the recess 15. Upper mold 1
．． and the concave portion 15 and convex portion 16 when the intermediate mold 13 is closed.
A first cavity CI (-FIG. 4) for compression molding the first molded body m1 is defined by this.

A protrusion 17 is provided on the upper surface of the lower mold 1 □ facing the intermediate mold 13 . Three small protrusions 17a are formed on the upper surface of the protrusion 17.
A small recess 17b is formed between adjacent small protrusions 17a, and three small recesses 18b are formed in which each small protrusion 17a is loosely fitted to the lower surface of the intermediate mold 13 facing the lower mold 1□. A small convex portion 18a is formed which loosely fits into each small concave portion 17b. Lower mold 1□
When the intermediate mold 13 is closed, the small convex portion 17a and the small concave portion 18
b, the small concave portion 17b, and the small convex portion 18a define a second cavity Cz (FIG. 4) for compression molding the second molded body m2.

Further, on the lower surface of the intermediate die 13, on the outside of the small recesses 18b on both sides, there are protrusions that cooperate with the outer surfaces of the protrusions 17 of the lower die 1□ to form the edges to be trimmed on the second molded body m2. A section 18C is provided.

Upper mold 11, lower mold 1□ and intermediate mold 1. and a heater 19 for heating them. ~193 are buried.

In addition, 3 that can protrude from the top surface of each small convex portion 17a on the lower mold 1□
The book knockout bins 20 are slid together, and each knockout pin 20 is connected to a pneumatic or hydraulic third
It is connected to the piston rod 33 of the working cylinder 23.

Upper mold 1. On the lower surface existing on both sides of the recess 15 in the
A cam slide 35 is provided with a biting convex portion 35a that bites into the edge portion to be trimmed during molding of the molded body ml. Since the support structure and movement mechanism of these cam slides 35 are the same, the second A, the second B,
The right cam slide 35 in FIG. 2 will be explained with reference to FIGS. 4A and 6A.

As shown in Figures 2A and 2B, the cam slide 35
A pair of guide protrusions 36 (
Each guide protrusion 36 slides into a guide groove 37 having a T-shaped cross section and opens on the lower surface of the upper mold 11, so that the cam slide 35 moves the upper mold 1. It can move forward and backward with respect to the opening of the recess 15.

On the outside of each guide protrusion 36, a hook-shaped recess 38 that opens downward and toward the side of the upper mold II is formed in the cam slide 35. A notched groove 39 is formed.

A suspension bolt 40 is inserted into the notch groove 39, and the suspension bolt 40 is attached to the upper die 1. is screwed onto. On the ceiling wall of the recess 38,
A holding plate 41 through which the suspension bolt 40 is passed is applied, and a spring 43 loosely fitted to the suspension bolt 40 is compressed between the holding plate 41 and a washer 42 applied to the suspension port head 40a. Ru. In this case, the set load of the spring 43 is set so as not to hinder the movement of the cam slide 35 back and forth.

Inside each guide protrusion 36, the cam slide 35 is provided with a window 44 that is open at the top and bottom, as clearly shown in FIGS. 2A, 4A, and 6A.

The first slope 4 near the biting convex portion 35a in the window 44
5+ is inclined from the top to the bottom so that its lower edge approaches the corner below the biting convex part 35a, and the second slope 45□, which is far from the biting convex part 35a, has its lower edge biting in. It is inclined from the top toward the bottom so as to be farther away from the lower corner of the convex portion 35a.

Second. As clearly shown in FIG. 4A, the convex portion 16 of the intermediate mold 13
A first cam driver 47I with a slope 46 that slides on the first slope 45 of the cam slide 35 to advance the cam slide 35 is provided on both sides, and as shown in FIG. The protrusion 17 of 12 slides on both sides with the second slope 45□ of the cam slide 35, and the cam slide 35
a second cam driver 47 with a slope 48 for retracting the
2 is provided protrudingly.

As clearly shown in FIG. 2B, in the top wall of the hook-shaped recess 38 of the cam slide 35, a through hole 49 is formed between the biting convex portion 35a and the notch groove 39, and the upper part of the through hole 49 is made of steel. The ball 50 is slid together, and a set screw 51 is screwed into the lower part.

A spring 52 is installed between the steel ball 50 and the set screw 51 to spring the steel ball 50 toward the upper die 11. Two first . Second engagement recess 53I.

53□ is formed along the advancing and retreating direction of the cam slide 35.

The steel ball 50 is located in one of the first engaging recesses 53 close to the recess 15 of the upper die II. When engaged, the cam slide 35 inserts the tip of the biting convex portion 35a into the upper die 1. as shown in FIG. 4A. It is held in the forward position where it protrudes into the opening from the edge of the recess 15 at. Further, when the steel ball 50 engages with the other second engagement recess 53□, the cam slide 35 holds the tip of the biting convex portion 35a in the retracted position where the tip of the biting convex portion 35a is retracted from the edge of the recess 15, as shown in FIG. 6A. be done.

The cam slide 35, the first cam driver 471, the steel ball 50, the spring 52, and the first engagement recess 531 constitute a first attachment mechanism A that attaches the first molded body m to the upper die 11.

The intermediate mold 13 is formed with an airtight chamber 22 and a large number of ventilation holes 26 extending from the airtight chamber 22 and opening into the outer surface of the convex portion 16 and the inner surface of the small recess 18b, respectively. and is connected to a vacuum pump 24 and a blower 28.

These airtight chambers 22, all the ventilation holes 26, and the vacuum pump 24 are connected to the first and second molded bodies ml.

1st during compression molding of m2. A vacuum suction mechanism (2) for applying vacuum suction to the second cavities cl and c2 is constructed.

In addition, the airtight chamber 22, each ventilation hole 26 of the small recess 18b, and the blower 28 serve as a second
This constitutes an adhesion mechanism A2.

A conveyor 29 for conveying the laminated molded body is disposed near the base 6□ of the guide frame 11. Further, a transfer machine 3 that transfers the laminated molded body from the lower mold 1□ onto the conveyor 29 is placed on a support 30 erected on the base 6□ near the conveyor 29.
One moving rod 32 is slid together, and a plurality of vacuum suction cups 33 are provided at the tip of the moving rod 32 so as to be able to face the lower mold 1 □.

Next, the production of a laminated molded body using the above-mentioned production apparatus will be explained.

When the compression mold 1 is opened, the upper mold 1.
to the upper part of the holding frame 7, and the intermediate mold 1. are respectively located within the guide frame 11, and the connecting member 14 is in a connected state. Each knockout pin 20 is recessed into the lower mold 1 □, and their tip surfaces are held on the same plane as the top surface of each small convex portion 17a of the lower mold 1 □.

The moving rod 32 of the transfer machine 31 is moving so that its suction cup 33 is located above the conveyor 29. The vacuum pump 24 and the blower 28 are inactive, and the switching valves 27 are switched to the vacuum pump 24 side. The cam slide 35 is in the retracted position, and this position is maintained by the steel ball 50 engaging with the second engaging recess 53□.

Before the molding operation, the upper mold 18, the lower mold 1□ and the intermediate mold 1.
is heated to the molding temperature by each heater 191 to 193.

Also, intermediate type 1. A putty-like molding material COM made of unsaturated polyester resin mixed with glass fiber, filler, thickener, etc. is placed on the top surface of the convex portion 16 and the top surface of the small convex portion 17a in the middle of the lower mold 1□. Place each.

Second working cylinder 2! actuate the piston rod 3
Extend □ and form the intermediate mold 1. as shown by the chain line in Figure 2. is positioned by sliding it into the holding frame 7 through the guide frame 11.

The connecting member 14 is turned off, and the second operating cylinder 2! is operated again to contract the piston rod 3z, and the piston rod 3. only into the guide frame 11.

As shown in FIG. 4, the first working cylinder 2. 3. actuate the piston rod. is extended and the upper mold 11 is lowered. As a result, the first slope 45 of each cam slide 35. slides on the slope 46 of each first cam driver 47°, and each cam slide 35 moves forward, and as shown in FIG. 1h The intermediate mold 13 and the holding frame 7 descend while compressing each cushion spring 9, and the lower surface of the protrusion 18C of the intermediate mold 13 abuts the upper surface of the lower mold I2. In this way, the compression mold 1 is closed.

Upper mold 1. A first cavity c is defined between the intermediate mold 11 and the molding material COM+ is heated and flows in the cavity c, filling the first cavity c, so that the first molded body m is compression molded. be done. Further, as shown in FIG. 4A, a predetermined gap g1 is formed between the tip of the biting convex portion 35a of each cam slide 35 and each side surface of the convex portion 16 of the intermediate mold 13, and the molding material COM flows into the gap gl. So the first
An edge f1 continuous to the molded body m is molded.

Since each edge f is formed so as to surround the tip of the multi-biting convex portion 35a, the tip thereof bites into the edge f. Further, a second cavity C2 is defined between the lower mold 1□ and the intermediate mold 13, and the molding material COM z
The second molded body m2 is compression molded by the flow. In addition, as shown in FIG. 4B, each protrusion 1 of the intermediate mold 13 is
A predetermined gap g2 is formed between the inner surface of 8c and each outer surface of the protrusion 17 of the lower mold 1□, and the molding material COM is filled in the gap g2.
Since z flows in, the edge f2 connected to the second molded body m2
is formed. In this way, two molded bodies ml and mz are molded simultaneously by one mold closing operation.

Since the molding materials COM+ and COMt contain glass fibers, the molding materials COM+ and COMt under heating during the molding process.
During the flow of COM, the glass fibers impede the flow of the unsaturated polyester resin, so the molding material COM+, C0
Mg does not flow smoothly, and as a result, molding material C
Air tends to get caught up in OM,,coMz.

Therefore, during compression molding, the vacuum pump 24 is activated and the first.
Vacuum suction is applied to the second cavity CI+C2 to prevent air from being drawn into the flowing molding materials COM+ and C0Mg. The generation of pores in the second molded bodies m, , m= is prevented.

Stop the operation of the vacuum pump 24 and switch the switching valve 27 to the
8 side, and the closed state is changed to the image forming body m,,m
Maintain until z is semi-cured. The image moldings ml, m have not yet lost their tackiness in the semi-cured state.

The blower 28 is operated to supply pressurized air to the airtight chamber 2 of the intermediate mold 13.
2 and each vent hole 26 through the first. 2nd cavity 'I
Inject to +C2. Due to the pressing action of this pressurized air, the first. The second molded bodies ml and m2 are released from the intermediate mold 13.

As shown in FIG. 5, the first actuating cylinder 21 is actuated to contract its piston rod 3I, and the upper mold II is raised to the position before the molding operation. As a result, the holding frame 7 and the intermediate die 13 are returned to the position before the molding operation, where the holding frame 7 is in contact with the enlarged head 8a of each guide bin 8 by the elastic force of each cushion spring 9. During this time, the operation of the post-mold blower 28 is stopped, and the switching valve 27 is switched to the vacuum pump 24 side in preparation for the next process, or is held at the neutral position.

The tip of the biting convex part 35a of each cam slide 35 bites into each edge f1 of the first molded body m, and the steel ball 50 and the first engaging recess 53. Since each cam slide 35 is held in the forward position by the engagement of the cam slides 35, the biting state is reliably maintained, whereby the No. rises with On the other hand, the second molded body m2 is released from the intermediate mold 13 by the pressing action of the pressurized air as described above, and each edge r2 of the second molded body m2 is in close contact with each outer surface of the protrusion 17. , is left in the lower mold 1□.

Operate the second working cylinder 2□ and its piston rod 3
□ is extended to bring the connecting member 14 into the connected state. Then, the second operating cylinder 2□ is operated again to contract the piston rod 32, and the intermediate mold 1 is slid into the guide frame 11, and the upper and lower molds 1. .

1□ Leave from between. Due to this separation of the intermediate mold 13, the first
and second molded bodies m, , mz face each other with the holding frame 7 in between.

As shown in FIG. 6, the piston rod 3. , and lower the upper mold II. As a result, the end stepped surface 1a of the upper mold 11 is aligned with the holding frame 7.
The upper die 1 and the holding frame 7 come into contact with the upper surface, and further descend while compressing each cushion spring 9 to some extent. Further, the second slope 45□ of each cam slide 35 is connected to each second cam driver 47.
Each cam slide 35 slides back by sliding onto the slope 48 of No. 2,
As shown in FIG. 6A, the biting convex portion 35a
The edge f of , is more detached. When the bottom surface of each cam slide 35 comes into contact with the top surface of the lower mold 1□, it is turned upward.

The closing of the lower mold 18, 1□ is completed.

Under the closed mold above, the upper mold 1. The first molded body m attached to the lower die 1z and the second molded body m2 attached to the lower mold 1z are polymerized with each other, and the image molded bodies rJ and m4 are joined under heating and completely cured, thereby forming the image molded body ml. .

m2 is accurately polymerized, and a high-quality laminate molded product without pores can be obtained.

During this heat bonding, the molding material C0M1 for the first molded body to be used in the next step is placed on the top surface of the convex portion 16 of the intermediate mold 13 (FIG. 7).

As shown in FIG. 7, the first working cylinder 2. is operated to contract the piston rod 3I and raise the upper die to the position before the molding operation. In this case, in particular, each edge f2 of the second molded body mg is in close contact with each outer surface of the protrusion 17 of the lower mold 12, and the first molded body m is joined to the second molded body m2. , the laminated molded body remains securely in the lower mold 1□. As the upper mold 11 rises, the holding frame 7 also rises and returns to the above position.

actuate the third actuating cylinder 23 and its piston rod 3;
3 is extended, and each knockout pin 20 is made to protrude from the lower mold 1□. As a result, the laminated molded body is supported by each knockout pin 20 above the lower mold 1□.

The transfer machine 31 is operated to slide the movable loft 32 toward the lower die 1□, and each suction cup 33 is opposed to the laminated molded body. After the laminated molded body is sucked by each suction cup 33, the moving rod 32 is slid toward the conveyor 29, and the laminated molded body is transferred above the conveyor 29. The suction ability of each suction cup 33 is released, and the laminated molded body is dropped onto the conveyor 29 and conveyed to a predetermined position. Third working cylinder2. Reactivate the piston rod 3. is contracted, and each knockout pin 20 is immersed into the lower mold 1□.

Both edges r, , r2 of the laminate molded body are cut off by trimming, thereby obtaining the laminate molded body shown in FIG.

As mentioned above, the first. Since the compression molding of the second molded bodies m, , mz and the polymerization bonding of the image molded bodies m, , mg are performed in a series of steps, the mass productivity of the laminate molded body is good.

In the above embodiment, the upper mold 11 was raised and lowered relative to the lower mold 1□ to bring the two molds 11, 1□ into contact with each other.
The upper mold 1. Variations have been implemented, such as raising and lowering the upper mold 11 and raising the lower mold 1□ at the same time as lowering the upper mold 11, arranging both molds 13 and 1□ on the left and right and moving one or both of them horizontally. It is possible. In addition to the above-mentioned glass fibers, carbon fibers, aramid fibers, etc. are used as reinforcing fibers. Further, upper mold 11, lower mold 1□ and intermediate mold 13
As a heating source, the heater 19. In addition to ~193, steam, heated oil, etc. are used.

Furthermore, the present invention is also applicable to the case where a laminate molded body is manufactured using a molding material that does not contain glass fibers or the like as reinforcing fibers.

C0 Effects of the Invention According to the manufacturing method according to the present invention, first. Since the image molded body is polymerized and bonded subsequent to the compression molding of the second molded body, it is possible to reduce the number of manufacturing steps for the laminate molded body and improve mass productivity. In addition, since the image molded bodies are formed by compression molding under vacuum suction, the generation of pores in these molded bodies is prevented, and then the molded bodies are firstly molded. Since the adhesives are polymerized and bonded while being attached to the second mold, their positions can be determined accurately without the need for alignment of the image moldings, thereby making it possible to obtain a high-quality laminate molding.

Further, according to the manufacturing apparatus according to the present invention, the first and second molded bodies are molded using one compression molding mold, and the compression molding mold is also used for polymerization and bonding of the image molded bodies, and the first and second molded bodies are Since the intermediate mold is provided with a vacuum suction mechanism that performs vacuum suction between the mold and the intermediate mold and between the second mold and the intermediate mold, a dedicated molding device for each molded object and a joining device for the image molded objects are not required. Only one vacuum suction mechanism is required, which simplifies the configuration of the device and reduces its manufacturing cost.Moreover, the space occupied by the device can be reduced and the space within the factory can be used effectively.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal cross-sectional view of a laminated molded product, and FIG. 2 is a longitudinal cross-sectional view of the manufacturing apparatus before the molding operation, which corresponds to the cross section taken along the line n--n in FIG. 2A is a view taken from the direction of the arrow Ua in FIG. 2, FIG. 2B is an enlarged sectional view taken along the line nb-nb of FIG. 2A, FIG. 3 is a view taken from the direction of the 4A and 4B are partially enlarged views of FIG. 4, FIG. 5 is a longitudinal sectional view of the device when the mold is opened after the molding process, and FIG. 6 is a longitudinal sectional view of the device in the joining process. Fig. 6A is a partially enlarged view of Fig. 6;
FIG. 7 is a longitudinal sectional view of the device when the mold is opened after the bonding process. A+, Am ”'1st and 2nd attachment mechanism, CI+CZ・
...First. Second cavity, L... laminate molded product, ml
. m2... 1st. 2nd molded body, ■... vacuum suction mechanism,
1... Compression molding mold, 11... Upper mold as the first mold,
12... Lower die as second die, 13... Intermediate die holder
Applicant Honda Motor Co., Ltd. Figure 6 Figure 6A

Claims (2)

[Claims] (1) In manufacturing a synthetic resin laminate molded body consisting of a first and second molded body which are bonded together by polymerization, the first
A compression molding mold consisting of a mold, a second mold facing the first mold, and an intermediate mold existing between the two molds is closed, and the first mold is closed.
Vacuum suction is applied between the mold and the intermediate mold, and between the second mold and the intermediate mold, so that the first and second molds are in a semi-hardened state between the first mold and the intermediate mold, and between the second mold and the intermediate mold, respectively. a step of simultaneously compression molding the molded bodies; opening the compression mold with the first and second molded bodies attached to the first and second molds, respectively, and moving the intermediate mold to the first mold; and a step of separating the first and second molded bodies from a space between second molds to face each other; closing the first and second molds to polymerize the first and second molded bodies with each other; 1. A method for producing a synthetic resin laminate molded article, comprising: joining and completely curing; (2) A manufacturing device for manufacturing a synthetic resin laminate molded body consisting of first and second molded bodies that are bonded together by polymerization, the first and second molds being able to be moved toward each other and separated; A compression mold consisting of an intermediate mold that can be located between the first mold and the second mold, and a first cavity for compression molding the first molded body on both opposing surfaces of the first mold and the intermediate mold. and the second mold is provided on both opposing surfaces of the second mold and the intermediate mold.
A second cavity is provided for compression molding the molded product, and when the first and second molded products are compression molded, the intermediate mold is inserted between the first and second molds, and the intermediate mold is inserted between the first and second molds.
The mold and the intermediate mold are polymerized to form a closed mold, and when the first and second molded bodies are polymerized and joined, the intermediate mold is polymerized with the first mold.
and the intermediate mold is configured to be movable so that it can separate from the second mold and polymerize the first and second molds to form a closed mold, and during compression molding of the first and second molded bodies. Said first
providing the intermediate mold with a vacuum suction mechanism for applying vacuum suction between the mold and the intermediate mold and between the second mold and the intermediate mold;
A manufacturing apparatus for a synthetic resin laminate molded body, comprising first and second attachment mechanisms capable of attaching the first and second molded bodies to the first and second molds, respectively, after compression molding.