JP2022093953A - Manufacturing apparatus for molded product of fiber-reinforced resin material and manufacturing method for molded product - Google Patents

Abstract

To provide an apparatus and method for manufacturing a molded product made of fiber-reinforced resin material, which enable a cycle time in a manufacture of the molded product made of fiber-reinforced resin material by a press to be shortened to promote high-cycle mass production.SOLUTION: In an apparatus for manufacturing a molded product made of fiber-reinforced resin material, heating plates 5, 6 in which heating means for supplying heat energy to a pair of upper and lower molds 1, 2 are arranged on a back surface of each mold so as to be separable are thermally joined to the molds 1, 2 to which expansion and contraction members 11a, 11b, 12a, 12b are connected during heating and compression. When the heating plates 5, 6 are relatively separated after a process of heating and compression molding, the upper and lower molds are cooled to a predetermined temperature via cooling means that cool each pair of molds.SELECTED DRAWING: Figure 1

Description

The present invention relates to a fiber-reinforced resin material molded product manufacturing apparatus whose strength is increased by combining with fibers such as glass fiber and carbon fiber, and a method for manufacturing a fiber-reinforced resin material molded product using this molded product manufacturing apparatus.

In addition to the above glass fibers and carbon fibers, synthetic resin fibers such as cellulose, boron and aramid are known as the fibers used. The material obtained by impregnating or mixing these fibers with a thermosetting resin or a thermoplastic resin as continuous fibers or discontinuous fibers (short fibers) is a prepreg, a sheet molding compound (SMC), or a tape-like, sheet-like, or mat-like material. It is provided as a fiber reinforced resin material (processed material) in the form of.

The above materials are molded into a desired shape by a press to be manufactured as a fiber reinforced plastic (FRP) molded product, and are supplied to a wide range of fields such as building materials and constituent materials of ships or aircraft.
Press forming is a slide in which a pair of dies (generally, one: female-shaped upper die (cavity) and the other: male-shaped lower die (core)) are driven by a hydraulic cylinder or an electric motor. The processed material (for example, prepreg) that is moved up and down and inserted between the pair of dies (above the lower die) is heated and compressed by a press to form a required shape, cooled, and then the upper and lower dies are opened. And take it out as a product.

Patent Document 1 can be cited as a disclosure of this type of prior art. Patent Document 1 uses a press-molded die that eliminates the variation in resin impregnation due to non-uniformity of pressurization and heating in a press using an insert piece by providing an elastic body between the insert piece and the heating means. Disclose the molding method used.

Japanese Patent No. 5826243

The cooling time of the mold, which is required to stabilize the shape until the product is taken out after heating and compression by the mold when molding a molding material such as prepreg with a press, largely depends on the production time (process time, cycle time).
In Patent Document 1, a heating means (heater) is embedded in one transfer molding portion and the other transfer molding portion of a pair of molds for imparting a required shape to the molding material, and the heating means (heater) is embedded directly in the molding material. Adjacent to supply heat energy. On the other hand, the flow path of the cold water as the cooling means is provided on the opposite side of the transfer molding portion of the movable mold and the fixed mold, that is, on the outside of the heating means.

In this configuration, it takes a considerable amount of time for the cooling means to lower the temperature of the mold (transfer molding part) and the molded product, open the mold, and take out the molded product after performing the required molding process by heat compression. You will need it. That is, even if the electric power to the heater is stopped and cold water is passed through the cooling means, a considerable amount of residual heat remains in the mold (entry piece), so that the cooling means must also suck out this residual heat. It takes a long time for the temperature of the mold to reach a value at which the molded product can be taken out. This becomes an obstacle to shortening the cycle time of the manufacturing process, and is a problem to be solved in order to achieve a so-called high cycle.

The present invention is to solve the above-mentioned problems of the prior art, shorten the cycle time in the production of a molded product of a fiber reinforced resin material by a press, and promote high-cycle mass production.

In order to achieve the above object, in the present invention, a heating plate provided with cooling means for each of the pair of upper and lower molds and a heating means for supplying heat energy is arranged on the back surface of each mold so as to be detachable. Characterized by points. The present invention includes the following.

[1] An apparatus for producing a fiber-reinforced resin material by press molding using a pair of upper and lower dies consisting of an upper die having a cavity and a lower die having a core.
An upper mold equipped with cooling means inside,
A lower mold with a cooling means inside,
An upper heating plate, which is separably arranged on the back surface of the upper mold and is provided with a heating means,
A lower heating plate, which is separably arranged on the back surface of the lower mold and is provided with a heating means,
At least one connecting the mold and the plate in at least one unit of the upper unit including the upper mold and the upper heating plate and the lower unit including the lower mold and the lower heating plate. Equipped with two telescopic members,
At the time of heating / compression, the mold to which the expansion / contraction member is connected and the heating plate are thermally joined.
After heating and compression, when the upper unit and the lower unit are relatively separated from each other, the fiber-reinforced resin material is sandwiched between the upper mold and the lower mold by the urging of the elastic member. An apparatus for manufacturing a molded product of a fiber reinforced resin material, in which a mold to which the stretchable member is connected and a heating plate to which the stretchable member is connected are separated from each other.

[2] The apparatus for manufacturing a molded product of a fiber reinforced resin material according to [1], wherein the heating means is a cartridge heater or a high frequency power source loaded in a cavity provided in the heating plate.
[3] The fiber reinforced according to [1] or [2], wherein the cooling means is embedded in the upper mold and the lower mold and is a serpentine for flowing cold water or oil. Molded product manufacturing equipment for resin materials.

[4] A method for manufacturing a molded product of a fiber-reinforced resin material by press molding using an upper die having a cavity and a lower die having a core.
An upper unit composed of an upper mold having a cooling means inside and an upper heating plate which is separably arranged on the back surface of the upper mold and has a heating means.
Manufacture of a molded product including a lower mold having a cooling means inside and a lower unit composed of a lower heating plate which is separably arranged on the back surface of the lower mold and has a heating means. In the device
Material insertion for inserting a fiber reinforced resin material on the core of the lower mold between the cavity of the upper mold constituting the upper unit and the core of the lower mold constituting the lower unit. Process and
The upper mold and the lower mold are provided by the upper heating plate provided in contact with the back surface of the upper mold constituting the upper unit and the lower heating plate provided in contact with the back surface of the lower mold. A heat process in which the fiber-reinforced resin material is pressed and press-molded while being heated and compressed while heat energy is transferred and supplied to the heat process.
After the required heating / compression process has elapsed, the supply of heat energy to the upper mold and the lower mold is stopped, and the cooling medium is supplied to the upper mold and the cooling means of the lower mold. A cooling step of cooling the upper mold, the lower mold, and the fiber-reinforced resin material to a given temperature, and
When the fiber-reinforced resin material is cooled to a required temperature, the upper mold and the lower mold are opened, and the fiber-reinforced resin material molded product is taken out.
Including
Further, when the supply of heat energy to the upper mold and the lower mold is stopped, the upper heating plate and the upper mold are thermally joined, and / or the lower heating plate and the lower mold are used. A method for manufacturing a molded product of a fiber-reinforced resin material, which comprises a heating plate withdrawal step.

The cavity 1a and the core 2a provided in the upper and lower molds in the above configuration may be formed in either the upper or lower mold. Further, the present invention can also be applied to a mold of a method using an incoming piece.

The present invention is not limited to the above configuration and the configuration of the examples described in the embodiments described later, and various modifications can be made within the scope of the technical idea of the present invention.

According to the present invention, the heating plate and the die can be separated from each other during cooling, so that the cooling time of the die in press working can be significantly shortened, and high-cycle mass production can be realized.

Schematic diagram illustrating the overall configuration of the molded product manufacturing apparatus of the fiber reinforced resin material according to the present invention. Top view of the molded product manufacturing apparatus for the fiber reinforced resin material according to the present invention shown in FIG. Explanatory drawing of the structure excluding the upper mold of the upper unit constituting the molded article manufacturing apparatus of the fiber reinforced resin material which concerns on this invention. Explanatory drawing of the structure excluding the lower die of the lower unit constituting the molded article manufacturing apparatus of the fiber reinforced resin material which concerns on this invention. Schematic diagram of a cross section illustrating an example of a cooling means constituting a molded article manufacturing apparatus for a fiber reinforced resin material according to the present invention. Schematic diagram of a cross section illustrating an example of a heating plate constituting a molded product manufacturing apparatus for a fiber reinforced resin material according to the present invention. Schematic diagram illustrating a molded product manufacturing process of a fiber reinforced resin material according to the present invention. Schematic diagram following FIG. 7A illustrating a process for manufacturing a molded product of a fiber reinforced resin material according to the present invention. A flow chart for describing an example of a procedure for manufacturing a molded product of a fiber-reinforced resin material according to the present invention.

Hereinafter, the molded product manufacturing apparatus and the manufacturing method of the fiber-reinforced resin material according to the present invention will be described in detail with reference to the drawings of Examples.

FIG. 1 is a schematic view illustrating the overall configuration of a molded product manufacturing apparatus (press machine) for a fiber reinforced resin material according to the present invention, and FIG. 2 is a molded product manufacturing apparatus for a fiber reinforced resin material according to the present invention shown in FIG. It is a top view of. FIG. 3 is an explanatory diagram of a structure excluding the upper mold of the upper unit constituting the molded product manufacturing apparatus for the fiber-reinforced resin material according to the present invention, and FIG. 4 is an explanatory diagram of the structure excluding the upper mold, and FIG. 4 is the molded product manufacturing apparatus for the fiber-reinforced resin material according to the present invention. It is explanatory drawing of the structure excluding the upper mold of the lower unit which constitutes.
FIG. 1 shows an embodiment of a molded product manufacturing apparatus for a fiber reinforced resin material according to the present invention, which is installed on a base 13 of a press machine and has an upper die 1 having a cavity 1a and a lower die having a core 2a. It is a press molding apparatus using a pair of upper and lower dies composed of two. In this embodiment, the female (concave) shape formed on the upper mold 1 side is referred to as the cavity 1a, and the male (convex) shape formed on the lower mold 2 is referred to as the core 2a. The 1a and the core 2a may be formed on either the upper or lower mold, and are not particularly limited.

This molded product manufacturing device is suitable for heat-and-cool molding that heats and cools the mold, and is a heating plate that supplies heat energy to a pair of upper and lower molds (upper mold 1 and lower mold 2). (Upper heating plate 5, lower heating plate 6) is provided. Further, the upper mold 1 and the lower mold 2 are provided with cooling means (upper cooling means 20, lower cooling means 21), respectively.
The heating plates (5, 6) are installed on the back surfaces of the pair of molds (1, 2), and the heating plates (5, 6) are arranged so as to be detachable from the molds (1, 2). There is. The back surface is not the side in contact with the fiber reinforced resin material of the mold, but the surface on the opposite side.

As shown in the top view of FIG. 2 (showing the plane of the upper heating plate 5), in the molded product manufacturing apparatus of this embodiment, the upper and lower heating plates (5, 6) laminated on the rectangular upper and lower molds are laminated. It is a structure that has been constructed.
As shown in detail in FIG. 3, upper unit pins 7a to 7d (7c to 7d are not shown) are vertically formed in the upper pin grooves (pin insertion holes) 8a to 8d formed in the four corners of the upper heating plate 5. It is inserted in a state where it can be moved and the escape is restricted (see FIG. 1).
Further, the lower heating plate 6 has the same structure, and the lower unit pins 9a to 9d can move up and down in the lower pin grooves (pin insertion holes) 10a to 10d bored at the four corners. It is inserted with the lateral displacement suppressed. The lower unit pins 9a to 9d can also be installed so that they can be pulled out.

As described above, the upper mold 1 is composed of the upper cooling means 20 arranged in the upper mold 1 and the upper heating plate 5 arranged in thermal contact with the upper mold 1 so as to be contactable and detachable. It has an upper unit 100.
Further, the lower mold 2 is a lower side composed of a lower cooling means 21 arranged in the lower mold 2 and a lower heating plate 6 arranged in thermal contact with the lower mold 2 so as to be in contact with the lower mold 2. It has a unit 200. Here, the "cooling means arranged in the mold" does not mean cooling from the outside of the mold, but the cooling means is arranged inside the mold, and the mold and the fiber reinforced resin material are provided from the inside. A means of cooling.

The fiber-reinforced resin material 14a such as prepreg inserted between the cavity 1a of the upper mold 1 and the core 2a of the lower mold 2 is heated by the upper heating plate 5 and the lower heating plate 6, and the upper mold 1 and the lower Pressed by compressive pressing with the die 2 to release the contact between the upper heating plate 5 and the lower heating plate 6, and the upper and lower dies are locked so as to maintain the pressed state (intermediate lock). The upper mold 1 and the lower mold 2 are cooled by the upper cooling means 20 and the lower cooling means 21, and the fiber-reinforced resin material is made into a molded product.

The upper unit 100 and the lower unit 200 constituting the molded product manufacturing apparatus of the fiber reinforced resin material in this embodiment will be described with reference to FIGS. 3 and 4.
Since the upper unit 100 and the lower unit 200 have the same structure when they are turned upside down, the upper unit 100 will be mainly described.

As described with reference to FIG. 1, the upper unit 100 is composed of an upper heating plate 5 which is thermally contact-arranged on the back surface opposite to the cavity 1a of the upper mold 1 shown in FIG. Will be done. Similarly, the lower mold 2 is composed of a lower heating plate 6 which is thermally contact-arranged so as to be detachable from the back surface opposite to the core 2a.

The upper and lower molds (1, 2) and the upper and lower heating plates (5, 6) are "arranged by thermal bonding" when the upper and lower molds (1, 2) and the upper and lower heating plates (5, 6) are arranged. ) Means that an integral bond is formed so as to conduct good heat conduction.
Here, the upper and lower molds (1, 2) are provided with cooling means (21, 22), respectively, and the upper and lower molds (1, 2) are smoothly cooled by the cooling means (21, 22). Can be done.
Further, the "thermal contact arrangement" between the upper and lower molds (1, 2) and the heating plate (5, 6) creates the above-mentioned "arrangement by thermal joining" state, but the contact is released. It means that it is configured to be possible.

At the start of pressing, the upper heating plate 5 is integrally brought into contact with the upper die 1 by a slide (not shown) against the upper unit springs 11a to 11d (see FIG. 2 for the positions of 11c and 11d) which are elastic members. Then, the fiber-reinforced resin material 14a placed on the lower unit 200 is lowered so as to be compressed.

The upper unit springs 11a to 11d are accommodated in the spring accommodating portion 18 (only the upper heating plate is marked) when the upper heating plate 5 is in pressure contact with the upper mold 1.
The upper heating plate 5 is brought into contact with and separated from the upper mold 1 by the upper unit pins 7a to 7d (7c and 7d are not shown) sliding on the upper pin groove 8a having a step for limiting the vertical distance. It has become.
The distance between the upper heating plate 5 and the upper mold 1 is D1, and the distance d1 between the upper surface of the upper unit pins 7a to 7d and the back surface (the surface pushed by the slide) of the upper heating plate 5 is D1 ≦ d1. For example, 1 mm ≦ D1 ≦ 30 mm (5 mm in this embodiment).

FIG. 5 is a schematic cross-sectional view illustrating an example of a cooling means constituting the molded product manufacturing apparatus for the fiber reinforced resin material according to the present invention, and FIG. 6 is a sectional diagram illustrating an example of the cooling means constituting the molded product manufacturing apparatus for the fiber reinforced resin material according to the present invention. It is sectional drawing schematically explaining an example of a heating plate.
In FIG. 5, a serpentine tube (cooling medium flow path) is formed as upper and lower cooling means 21 and 22 made of a metal bulk material, and in this embodiment, cold water flows through this as a cooling medium. The cooling medium is not particularly limited as long as it can be cooled, and may be, for example, oil.
The cooling medium is distributed from the cooling medium source / opening / closing means 28 to the recovery means 30 through the cooling medium flow path to lower the temperature of the upper and lower molds (1, 2).
Although the cross section of the upper mold is shown in FIG. 5, the description of the upper unit pins 7a to 7d and the like is omitted for the sake of clarity.

In FIG. 6, a plurality of cartridge heaters (26, 27) are installed on the upper and lower heating plates (5, 6) to heat the heating plates (5, 6).
During the period when the heating plates (5, 6) are supplying heat energy to the upper and lower molds (1, 2), the supply of the cooling medium is stopped.
The heat generation control and on / off of the cartridge heaters (26, 27) are controlled by a control means or the like.

The cartridge heaters (26, 27) use Joule heat as a heat source, but instead, a high-frequency power source using a high-frequency heating coil or the like can be used. That is, the means for supplying heat energy is not particularly limited, such as a heating device capable of heating. Further, heating oil or heating steam can be passed through a serpentine tube similar to the above-mentioned cooling medium flow path for heating.

Next, an embodiment of a process of a method for manufacturing a molded product from a fiber-reinforced resin material using the molded product manufacturing apparatus according to the present invention will be described.

FIG. 7A is a schematic diagram illustrating a molded product manufacturing process of the fiber reinforced resin material according to the present invention, and FIG. 7B is a schematic diagram illustrating a molded product manufacturing process following FIG. 7A. FIG. 8 is a flow chart illustrating an example of a procedure for manufacturing a molded product of the fiber reinforced resin material according to the present invention.
Hereinafter, one embodiment of the manufacturing method according to the present invention will be described with reference to FIGS. 7A, 7B, and 8.

In the initial state, the slide (not shown) is stopped at the standby position, and the upper unit 100 and the lower unit 200 have the cavity 1a of the upper mold 1 and the core 2a of the lower mold 2 as shown in FIG. It is in a separated state.
The upper heating plate 5 is installed on the back surface of the upper mold 1 in a state of being separated by the extension of the upper unit springs 11a to 11d (11c to 11d are not shown).

Similarly, regarding the lower mold 2, the lower heating plate 6 is installed on the back surface of the lower mold 1 in a state of being separated by extension of the lower unit springs 12a to 12d (12c to 12d are not shown) which are elastic members. Has been done. In this state, the upper and lower units (100, 200) are on standby (process 1 in FIG. 8 (hereinafter referred to as P1)).

Then, in the next process, the processing material (fiber reinforced resin material 14a) is inserted into the gap (between the cavity 1a and the core 2a) between the upper and lower dies (1, 2) in the standby state (P2 in FIG. 8). ).

Next, a slide (not shown) is operated to fully lower the slide. During the descent, the upper and lower heating plates (5, 6) are brought into contact with the upper and lower molds (1, 2) in the one-step descent, and the force that presses against the upper and lower molds (1, 2) in the final descent. give. As a result, the processed material (fiber reinforced resin material 14a) is sandwiched and compressed ((a) in FIG. 7A). (P3 in FIG. 8).

Then, an electric current is passed through the heating means (cartridge heaters) of the upper and lower heating plates (5, 6) to heat the processed material (fiber reinforced resin material 14a) at a high temperature ((b) in FIG. 7A: heat step). .. (P4 in FIG. 8).

At the time of entering the process from P3 to P4, it is desirable to preheat the heating means (cartridge heater) to raise the temperature of the upper and lower molds (1, 2) in advance.

After the required time required to form the work material, the slides are moved back one step (ie, the upper and lower units (100, 200) are slightly separated from each other) to cut off the current to the upper and lower heating plates (5, 6). Then, the upper and lower heating plates (5, 6) are separated from the upper and lower molds (1, 2), and the upper and lower cooling means (21, 22) are provided with a cooling medium (for example, cold water at 0 ° C to 10 ° C). To lower the temperature of the processed material (fiber reinforced resin material 14a) ((c) in FIG. 7B: cooling process). (P5 in FIG. 8).

The above-mentioned "returning the slide one step" means that the unit spring is extended and the upper and lower heating plates (5, 6) are released from contact with the upper and lower molds (1, 2), but the upper and lower molds are released. (1 and 2) mean a state in which the processed material is sandwiched and held.
That is, the upper and lower dies (1, 2) still hold the state in which the processed material (fiber reinforced resin material 14a) is sandwiched. At the stage of P5, the processed material (fiber reinforced resin material 14a) is in a sandwiched state, and the molded state is maintained.

When the temperature of the upper and lower molds (1, 2) drops to the required value (for example, 80 ° C.) due to the cooling by the upper and lower cooling means (21, 22), the cooling to the upper and lower cooling means (21, 22) is performed. Shut off the supply of media and return the slide to its initial position.
As a result, the upper and lower dies (1, 2) are opened, and the molded processed product, that is, the fiber reinforced resin material 14 is taken out (demolded) ((d) in FIG. 7B). (P6 in FIG. 8).

By going through the above process, the cycle time required for heat treatment (heating → cooling) of the fiber-reinforced resin material processed by heating and compression can be significantly shortened, and high-cycle production can be realized.
This makes it possible to reduce the unit price of the molded product and contribute to the overall cost reduction.

The above manufacturing process will be further described in terms of the concept of the process as follows. That is, the production of the fiber-reinforced resin molded product according to this embodiment includes the following steps.

(1) A fiber reinforced resin material is placed on the core 2a of the lower mold 2 between the cavity 1a of the upper mold 1 constituting the upper unit 100 and the core 2a of the lower mold 2 constituting the lower unit 200. The material insertion process for inserting 14a and
(2) The upper mold 1 and the above are provided by the upper heating plate 5 provided in contact with the back surface of the upper mold 1 constituting the upper unit 100 and the lower heating plate 6 provided in contact with the back surface of the lower mold 2. A heat process in which the fiber-reinforced resin material is pressed and pressed while being heated and compressed while heat energy is transferred and supplied to the lower die 2, and a heat process.
(3) After the required heating / compression processing time has elapsed, the supply of heat energy to the upper mold 1 and the lower mold 2 is stopped, and the cooling means 21 and 22 of the upper mold 1 and the lower mold 2 are used. A cooling step of supplying a cooling medium to cool the upper mold 1, the lower mold 2, and the fiber-reinforced resin material 14a to a given temperature, and
(4) When the fiber reinforced resin material 14a is cooled to a required temperature, the pressure applied to the upper unit 100 and the lower unit 200 is released to open the upper mold 1 and the lower mold 2, and the fiber reinforced resin is used. Including the step of taking out the molded product to take out the material molded product 14.
Further, when the supply of heat energy to the upper mold 1 and the lower mold 2 is stopped, the thermal bonding between the upper heating plate 5 and the lower heating plate 6 and the upper mold 1 and the lower mold 2 is released. Includes a heating plate evacuation step.

Further, in a state where heat energy is transmitted and supplied to the upper die 1 and the lower die 2, the fiber reinforced resin material 14a is applied to the upper die before the pressing process by the upper die 1 and the lower die 2. A step of preheating the temperature of 1 or, if necessary, a preheating step of heating slightly higher than the glass transfer point or melting point temperature of the resin impregnated in the fiber-reinforced resin material can be included.

According to the above-described embodiment, by retracting the heating plate from the die unit before the start of the cooling process, the cooling time of the die in press working is significantly shortened, and high-cycle mass production is realized. can.

1 ... Upper mold 1a ... Cavity 2 ... Lower mold 2a ... Core 5 ... Upper heating plate 6 ... Lower heating plate 7 (ad) ... Upper unit pin 8 (ad) ... Upper pin groove 9 (ad) ... Lower unit pin 10 (ad) ... Lower pin groove 11 (ad) ... Upper unit spring 12 (ad) ・ ・ ・ Lower unit spring 13 ・ ・ ・ Base 14 ・ ・ ・ Fiber reinforced resin processed product (molded product)
14a ・ ・ ・ Fiber reinforced resin material 15 ・ ・ ・ Connecting screw 16 ・ ・ ・ Joint surface with upper mold 17 ・ ・ ・ Joint surface with lower mold 18 ・ ・ ・ Spring accommodating part 20 ・ ・ ・ Upper cooling means 21 ... Lower cooling means 22 ... Upper heating means 23 ... Lower heating means 24, 25 ... Cooling medium flow path (snake tube)
26, 27 ... Heating means (cartridge heater or high frequency power supply)
28 ... Cooling medium source / opening / closing means 30 ... Recovery means 100 ... Upper unit 200 ... Lower unit

Claims (4)

An apparatus for producing a fiber-reinforced resin material by press molding using a pair of upper and lower dies consisting of an upper die having a cavity and a lower die having a core.
An upper mold equipped with cooling means inside,
A lower mold with a cooling means inside,
An upper heating plate, which is separably arranged on the back surface of the upper mold and is provided with a heating means,
A lower heating plate, which is separably arranged on the back surface of the lower mold and is provided with a heating means,
At least one connecting the mold and the plate in at least one unit of the upper unit including the upper mold and the upper heating plate and the lower unit including the lower mold and the lower heating plate. Equipped with two telescopic members,
At the time of heating / compression, the mold to which the expansion / contraction member is connected and the heating plate are thermally joined.
After heating and compression, when the upper unit and the lower unit are relatively separated from each other, the fiber-reinforced resin material is sandwiched between the upper mold and the lower mold by the urging of the elastic member. An apparatus for manufacturing a molded product of a fiber reinforced resin material, in which a mold to which the stretchable member is connected and a heating plate to which the stretchable member is connected are separated from each other. The apparatus for manufacturing a molded product of a fiber-reinforced resin material according to claim 1, wherein the heating means is a cartridge heater or a high-frequency power source loaded in a cavity provided in the heating plate. The molded product of the fiber-reinforced resin material according to claim 1 or 2, wherein the cooling means is embedded in the upper mold and the lower mold and is a serpentine for flowing cold water or oil. manufacturing device. It is a method for manufacturing a molded product of a fiber-reinforced resin material by press molding using an upper mold having a cavity and a lower mold having a core.
An upper unit composed of an upper mold having a cooling means inside and an upper heating plate which is separably arranged on the back surface of the upper mold and has a heating means.
Manufacture of a molded product including a lower mold having a cooling means inside and a lower unit composed of a lower heating plate which is separably arranged on the back surface of the lower mold and has a heating means. In the device
Material insertion for inserting a fiber reinforced resin material on the core of the lower mold between the cavity of the upper mold constituting the upper unit and the core of the lower mold constituting the lower unit. Process and
The upper mold and the lower mold are provided by the upper heating plate provided in contact with the back surface of the upper mold constituting the upper unit and the lower heating plate provided in contact with the back surface of the lower mold. A heat process in which the fiber-reinforced resin material is pressed and press-molded while being heated and compressed while heat energy is transferred and supplied to the heat process.
After the required heating / compression process has elapsed, the supply of heat energy to the upper mold and the lower mold is stopped, and the cooling medium is supplied to the upper mold and the cooling means of the lower mold. A cool step of cooling the upper mold, the lower mold, and the fiber-reinforced resin material to a given temperature, and
When the fiber-reinforced resin material is cooled to a required temperature, the upper mold and the lower mold are opened, and the fiber-reinforced resin material molded product is taken out.
Including
Further, when the supply of heat energy to the upper mold and the lower mold is stopped, the upper heating plate and the upper mold are thermally joined, and / or the lower heating plate and the lower mold are used. A method for manufacturing a molded product of a fiber-reinforced resin material, which comprises a heating plate withdrawal step.

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