JPH1058534A - Heat and pressure molding apparatus and method - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To continuously form a solid polymer electrolyte device of a predetermined size in a short time. A heating / pressing molding apparatus includes a pressing unit (50) for pressing and holding a stacked body (68) of a plurality of films including a polymer film by a pair of pressing members (51,52), and a pressing unit (51,52). A hot press 70 for pressurizing the pressing members 51 and 52 at a predetermined interval to heat and pressurize and form the laminate 68.
And an endless belt device 66 for moving the pressing unit 50 from the hot unit while pressing and holding the laminated body 68 formed by heating and pressing, and a cooler 71 for cooling the pressing unit 50 moved by the device 66. It is provided with.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a polymer molded membrane,
For example, the present invention relates to a heat and pressure molding apparatus and a method for manufacturing a solid polymer electrolytic element by heat and pressure molding.

[0002]

2. Description of the Related Art As a conventional technique, a polymer film (polymer film) and a metal film, or a polymer film and a glass cloth are heated and pressed to form a laminate used for electronic equipment. There is something like FIG.
BRIEF DESCRIPTION OF THE DRAWINGS It is the schematic of the manufacturing apparatus of the conventional laminated board shown by -21410 gazettes. In FIG. 10, 1 is a long base material, 2 is a long fluororesin film, 3 is a long metal foil, 4 is a long laminate, 5 is a double belt roll device, 6 is a cutter, 7 is a heating furnace, 8 Is a cooling furnace, and 9 is a laminate.

In FIG. 10, a long fluororesin film 2 is disposed between each layer and an outermost layer of a long substrate 1 such as a glass cloth.
Further, a long adhesive-attached copper foil 3 is arranged from the outside of the long fluororesin film 2 of the outermost layer, and a long laminated body 4 is prepared. Here, an adhesive is coated on one side of the copper foil 3 with the long adhesive, and the adhesive side is laminated as the outermost long fluororesin film 2 side. Next, the long laminate 4 is heated and pressed by the double belt control device 5. At this time, the softened (or partially melted) long fluororesin film 2 is press-fitted into each long base 1, and the long base 1 and the long fluororesin film 2 are integrated. Then, the laminate is cut with a cutter 6, post-heat-treated (aged) in a heating furnace 7, and quenched in a cooling furnace 8 to produce a laminated board 9 with little residual distortion.

[0004]

A conventional manufacturing apparatus for forming a laminated board used for electronic equipment and the like aims at joining a long fluororesin film 2 and a long base material 1 to each other. It is preferable as a method of manufacturing the laminated board 9 to be used. However, since the heating and pressure molding is performed by the double belt control device 5, it is difficult to produce a solid polymer electrolyte membrane such as a solid polymer electrolyte membrane which requires molding accuracy in the thickness direction. This is because the positive electrode and the negative electrode come into contact with each other if the pressing force is larger than necessary at the time of heating and pressing, and if the pressing force is smaller than necessary, each electrode will not be embedded in the ion-conductive solid polymer electrolyte membrane. Because it becomes. Furthermore, double belt control device 5
This is because the heat-pressing molding is not performed, and the ion-conductive solid polymer electrolyte membrane that has been softened is not solidified so that no disturbance is applied until the membrane becomes stable.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and maintains a dimensional relationship of a polymer molded film, for example, a solid polymer electrolyte element, and maintains a dimensional relationship of a polymer molded film, for example, a solid polymer It is an object of the present invention to provide a heating and pressing molding apparatus and a method for molding a polymer electrolytic element in a short time. It is another object of the present invention to provide a heating and pressing molding apparatus and a method for continuously molding a polymer molded membrane, particularly a solid polymer electrolyte element.

[0006]

According to the present invention, there is provided a heat and pressure forming apparatus comprising: a pressing unit for pressing and holding a laminate of a plurality of films including a polymer film by a pair of pressing members; A hot unit that heats the pressurizing member in a state where the pressure is applied so that the interval becomes a predetermined interval, and heat-press-molds the laminate, and heat-press-molds the laminate by the pressurizing member Cooling means for cooling the pressing member while being pressed and sandwiched, wherein the pressing unit or the hot unit is configured to press the pressing members so that a predetermined interval is provided between the pressing members, and the polymer molded film is formed. Is formed.

[0007] Further, there is provided a moving mechanism for moving the pressing unit from the hot unit in a state where the laminated body is pressed and held. The cooling means is a cooler for cooling the pressurizing member from the outside, and the moving mechanism sequentially moves the plurality of pressurizing units from the hot unit installation position to the cooler installation position.

The cooling means has a cooling passage provided in the pressurizing member and through which a cooling medium passes, and a cooling medium supply device for supplying the cooling medium. The cooling medium is compressed air. The pressing surface of the pressing member is formed of low thermal expansion ceramics. Further, the polymer molded membrane is a solid polymer electrolyte element. In the solid polymer electrolyte element, a positive electrode membrane is disposed on one surface side of an ion-conductive solid polymer electrolyte membrane, and a cathode electrode is formed on the other surface side. The membrane is to be placed.

[0009] Further, according to the heat and pressure molding method of the present invention, a step of pressing and holding a laminate of a plurality of films including a polymer film with a pair of pressing members is provided, and a predetermined interval is set between the pressing members. Pressurizing and heating the pressurizing member to heat-press and mold the laminate, and after the heating and press-forming step, the laminate is pressed and sandwiched by the pressurizing member. And a step of cooling the pressurizing member. In addition, the method includes a step of moving the pressing member in a state where the laminate is pressed and held by the pressing member.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As a prior art held by the inventor, a method for manufacturing a solid polymer electrolyte element in which an electrode substrate (electrode film) is partially embedded in an ion-conductive solid polymer electrolyte membrane will be described. . A laminate is prepared in which the positive electrode film is disposed on one side of the ion-conductive solid polymer electrolyte membrane and the negative electrode film is disposed on the other side. This laminate is heated and pressed by a hot press. Here, the hot press device heats the laminated body at a predetermined interval so that the anode electrode and the cathode electrode do not come into contact with each other by heat and pressure molding, and each electrode is embedded on both surfaces of the solid polymer film. Press molding. After heating and pressing for a predetermined time, the laminate is cooled (for example, allowed to cool) until the laminate can be transferred to the next step, that is, to a temperature at which the solid polymer electrolyte membrane is stabilized. Next, the laminate is put into a cooling device and cooled to obtain a solid polymer electrolyte device.

In the production of a solid polymer electrolyte device in which an electrode substrate is partially embedded in an ion-conductive solid polymer electrolyte membrane in the above-mentioned prior art, the laminate is kept at a predetermined interval by a hot press apparatus. , And heat-press molding, so that a solid polymer electrolytic device having an accurate film thickness can be molded. However, it is necessary to heat and press the laminate by directly sandwiching the laminate with a hot press device, and cool the laminate under a pressurized state until it can proceed to the next step. And there was a problem that the heat capacity of the hot press device was large and the cooling time was long. In addition, if the hot press device itself is configured to be cooled, a cooling device for the hot press device is required, and there is a problem that the device is enlarged. Furthermore, it is necessary to cool in a pressurized state until the laminate can be transferred to the next step by a hot press apparatus, that is, until the softened solid polymer electrolyte membrane becomes stable, so that the processing time is long, It has been difficult to continuously form a solid polymer electrolyte device. The present invention also seeks to solve the problems as in the prior art described above.
Hereinafter, the present invention will be described with reference to a case where a solid polymer electrolyte device is manufactured.

Embodiment 1 Embodiment 1 of the present invention will be described. FIG. 1 is a schematic configuration diagram of a heating and pressing molding apparatus for manufacturing a solid polymer electrolyte device according to Embodiment 1 of the present invention. FIG. 2 is a side view of FIG. 1 as viewed from the line II-II, and is an explanatory diagram illustrating the configuration of the pressurizing unit. FIG. 3 is a sectional view taken along line III-III of FIG. 4A and 4B are configuration diagrams showing the configuration of the solid polymer electrolyte device according to Embodiment 1 of the present invention, wherein FIG. 4A is a plan view, and FIG. FIG. 4 is a sectional view taken along line IVb. FIG. 5 is a flowchart showing an operation flow of a heating and pressing molding step for manufacturing the solid polymer electrolyte device according to Embodiment 1 of the present invention. However, FIG. 1 shows a schematic configuration, and only the movable heating and pressing plate and the fixed heating and pressing plate which are the main parts of the pressing unit are shown.

[Pressing unit] In FIGS.
Reference numeral 0 denotes a pressing unit, which includes a pair of pressing members (a fixed heating / pressing plate 51 and a movable heating / pressing plate 52), an arm 53, a column 54, a pin 55a, a pin 55b, a pressurizing spring 56, a base 57, and a fixed heating unit. It is composed of a fixing member 57b for fixing the pressure plate 51 to the base 57, and an interval adjusting member 73 for adjusting the interval between the fixed heating and pressing plate 51 and the movable heating and pressing plate 52 to a predetermined interval. By operating the pressurizing spring 56, the arm 53 rotates around the pin 55 a fixed to the base 57, and the movable heating and pressing plate 52 moves in a direction in which the distance between the movable heating and pressing plate 52 and the fixed heating and pressing plate 51 changes. I do. By operating as described above, the pressing unit 50 presses and sandwiches the stacked body 68 of a plurality of films including the polymer film between the fixed heating and pressing plate 51 and the movable heating and pressing plate 52.

Here, the fixed heating / pressing plate 51 and the movable heating / pressing plate 52 are made of a material having a small coefficient of thermal expansion in a heat cycle of the heating / pressing molding apparatus. The shape is, for example, a plate having a thickness of 15 mm, a horizontal width and a vertical width of 200 mm (or a disk having a diameter of 200 mm). The pressurized spring 56
Is an elastic spring such as a metal spring or an air spring, and a fixed heating / pressing plate 51 and a movable heating / pressing plate 52
Always presses the laminated body 68 so as to press and hold it. Note that the pressing unit 50 may have a configuration in which the stacked body 68 can be pressed and sandwiched by a pair of pressing members, and the pressing member is heated and cooled as described below.

[Solid Polymer Electrolyte Element] In FIG.
Reference numeral 8 denotes an ion-conductive solid polymer electrolyte membrane 59, an anode 60 as a positive electrode film, a cathode 61 as a negative electrode film, and a catalyst layer 6.
2. This is a solid polymer electrolyte element having a catalyst layer 63, an anode 60 disposed on one surface side of the solid polymer electrolyte membrane 59, and a cathode 61 disposed on the other surface side. Here, the ion-conductive solid polymer electrolyte membrane 59 is, for example, Nippon-117 (trade name) manufactured by DuPont having cationic conductivity.
Is a solid polymer thin film having a thickness of 100 to 180 μm.
Use the one around m. Further, for example, the anode 60 and the cathode 61 are conductive porous conductors (the anode 60 is a conductor obtained by plating platinum on titanium, and the cathode 61 is a carbon sheet), and have a thickness of about 100 μm. use.

The solid polymer electrolytic element 58 is an element for electrolyzing water molecules in the air when a DC voltage is applied between the anode 60 and the cathode 61 by a DC power supply 64. The catalyst layers 62 and 63 are interposed between the anode 60 and the solid polymer electrolyte membrane 59 and between the cathode 61 and the solid polymer electrolyte membrane 59 in order to improve the efficiency of electrolysis. For example, what carried out platinum on carbon powder should just be used. Although the anode 60 and the cathode 61 have been described as having a porous sheet shape, the anode 60 and the cathode 61 can be brought into close contact with and integrated with the solid polymer electrolyte membrane 59 by heat and pressure molding, and can be used for electrolysis. It is good if it can be. However, if the shape is a porous sheet, the number of lead wires connected to the anode 60 and the cathode 61 is one.
Since a book is sufficient, a simple configuration can be achieved.

[Heating and Press Forming Apparatus] In FIG.
Is an endless belt device which is a moving mechanism for moving the pressing unit 50 in the direction of arrow A, 67 is a feeder for setting the stacked body 68 to the pressing unit 50, and 69 is a pressing unit 5
This is a preheating mechanism for preheating the fixed heating and pressing member 51 and the movable heating and pressing member 52. The preheating mechanism 69 is, for example, a warm air generator or an infrared heater, and may be any as long as it can heat the pressurizing unit 50. In FIG. 1, the pressing unit 50 shows only a fixed heating / pressing plate 51 and a movable heating / pressing plate 52 which constitute the main part. Here, in the laminate 68, the catalyst layer 62 is disposed on one surface of the cation-conductive solid polymer electrolyte membrane 59, the anode 60 is disposed outside the surface, and the catalyst layer 63 is disposed on the other surface. A cathode 61 is disposed outside the cathode. 70
Presses the fixed heating / pressing member 51 and the movable heating / pressing member 52 at a predetermined interval, and in this state, heats the fixed heating / pressing member 51 and the movable heating / pressing member 52, and It is a hot press (hot unit) for heating and pressing. 70a is a fixed side plate constituting a part of the hot press 70, 70d is a hot press 70
Is a movable side plate that constitutes a part of. 71 is a cooler as a cooling means for cooling the fixed heating and pressing member 51 and the movable heating and pressing member 52 of the pressing unit 50, and 72 is a solid polymer electrolyte produced by heating and pressing the laminate 68. A take-out mechanism for taking out the element 58 from the pressurizing unit 50.

Next, the operation will be described with reference to FIGS. In the following description, the time and temperature are set to the above-mentioned example, that is, the thickness of the ion-conductive solid polymer electrolyte membrane 59 is about 100 to 180 μm, and the thickness of the anode 60 and the cathode 61 is about 100 μm. An example when pressure molding is performed to manufacture the solid polymer electrolyte device 58 having the configuration shown in FIG. 4 will be described. Needless to say, if the specification, shape or constituent material of the polymer electrolyte element 58 is changed, the time and temperature will change.

[Step 1] Pressurizing spring 5 of pressurizing unit 50
An external force is applied to the end of the arm 53 on the sixth side to open the space between the fixed heating and pressing member 51 and the movable heating and pressing member 52 of the pressing unit 50. Thereafter, the gap adjusting member 73 is taken out from the movable heating / pressing plate 52, and the gap adjusting member 73 is fixed to a position where the distance between the fixed heating / pressing member 51 and the movable heating / pressing member 52 can be restricted to a predetermined distance. In this state, feeder 6
7, the laminated body 68 is set on the fixed heating and pressing member 51. Next, the external force applied to the end of the arm 53 is released, and the pressurized spring 56 presses and holds the laminate 68 between the fixed heating and pressing member 51 and the movable heating and pressing member 52. Then, the pressure unit 50 is conveyed to the position of the preheating mechanism 69 by driving the endless belt device 66 in a state where the laminate 68 is pressed and sandwiched by the pressure unit 50. At this time, the stack 68 is pressed and held by the pressing unit 50. However, since the pressing force of the pressurizing spring 56 of the pressing unit 50 is small, the fixed heating and pressing member 51 and the movable heating and pressing member 52 Are larger than a predetermined interval.

[Step 2] Next, the fixed heating and pressing member 51 and the movable heating and pressing member 52 are separated by the preheating mechanism 69 in a state where the stacked body 68 is pressed and held by the pressing unit 50.
Preheat at 50 degrees for 2-3 minutes. After the preheating is completed, the pressing unit 50 is conveyed to the position of the hot press 70 by driving the endless belt device 66 in a state where the laminate 68 is pressed and sandwiched by the pressing unit 50. At this time, similarly to the step 1, the interval between the fixed heating and pressing member 51 and the movable heating and pressing member 52 is not a predetermined interval.

[Step 3] Then, the laminate 68 is pressed and sandwiched by the pressing unit 50 and the hot press 70 is pressed.
By pressing the fixed heating and pressing member 51 and the movable heating and pressing member 52 at a predetermined interval,
Heat and pressure mold at ~ 200 degrees for about 2 minutes. In this process,
The solid polymer electrolyte membrane 59 is softened or partially melted, and the anode 6
0 and the cathode 61 are embedded in the solid polymer electrolyte membrane 59 to be integrated. After the completion of heat and pressure molding, hot press 70
Is separated from the pressure unit 50. At this time, the anode 60 and the cathode 61 are embedded in the solid polymer electrolyte membrane 59 to be integrated, and there is almost no repulsion from the softened body in which the laminate 60 is softened. The distance between the fixed heating and pressing member 51 and the movable heating and pressing member 52 is a predetermined distance due to the urging force of the spring 56. Therefore, after the hot press molding by the hot press 70,
The dimension in the thickness direction of the laminate 68 is accurately maintained.
Next, the pressure unit 50 is conveyed to the position of the cooler 71 by driving the endless belt device 66 in a state where the stacked body 68 is pressed and held by the pressure unit 50. Here, the predetermined interval substantially corresponds to the thickness of the solid polymer electrolyte element 58. When the laminate 68 is formed by heating and pressing, the anode 69 and the cathode 61 do not come into contact with each other, and the solid polymer This is an interval within a range embedded so as to be integrated with the electrolyte membrane 59. This interval can be determined, for example, by experiment.

[Step 4] Next, the fixed heating and pressing member 51 and the movable heating and pressing member 52 are moved by the cooler 71 in a state where the stacked body 68 is pressed and held by the pressing unit 50.
0 degrees (curing temperature of the solid polymer electrolyte membrane 59) or less
Cool in 3 minutes. By this cooling step, the solid polymer electrolyte membrane 59 is solidified and is in a stable state. After the cooling, the pressure unit 50 is conveyed to the position of the take-out mechanism 72 by driving the endless belt device 66 in a state where the stacked body 68 is pressed and held by the pressure unit 50.

[Step 5] Next, an external force is applied to the end of the arm 53 of the pressurizing unit 50 on the side of the pressurizing spring 56, so that the fixed heating pressurizing member 51 and the movable heating pressurizing member 52 of the pressurizing unit 50 are connected. Open the gap. In this state, the solid polymer electrolyte element 58 obtained by heating and press-forming the laminate 68 by the take-out mechanism 72 is taken out of the pressurizing unit 50. Next, the interval adjusting member 73 is accommodated in the movable heating and pressing plate 52, and the external force acting on the end of the arm 53 is released.

[Step 6] Next, the pressure unit 50 is transported to the position of the feeder 67 by driving the endless belt device 66. Hereinafter, steps 1 to 6 are repeated. In step 6, the distance adjusting member 73 is moved to the movable heating and pressing plate 52.
The fixed heating and pressing member 51 of the pressing unit 50 and the movable heating and pressing member 52 are in contact with each other. And
In the step 1, the example has been described in which the interval adjusting member 73 is taken out of the movable heating and pressing plate 52 and the fixed heating and pressing member 51 and the movable heating and pressing member 52 are held at a predetermined interval. However, the interval adjusting member 73 is not accommodated in the movable heating and pressing plate 52, but is removed outside the processing unit 50 in step 6, and the interval adjusting member 73 is set on the movable heating and pressing plate 52 from outside the processing unit 50 in step 1. It is good also as a structure which performs. Further, the gap adjusting member 73 may be fixed at the position shown in FIGS. 2 and 3 at all times. At this time, the distance between the fixed heating and pressing member 51 and the movable heating and pressing member 52 is substantially a predetermined interval in all of the steps 1 to 6.

With the above construction, the fixed heating and pressing member 51 and the movable heating and pressing member 52 of the pressing unit 50 are provided.
Since the heat capacity is significantly smaller than that of the hot press device 70 and the cooling device 71, the molding time of the steps 3 and 4 can be shortened. Further, when manufacturing the solid polymer electrolyte device 58 having high dimensional accuracy, in the first embodiment, as compared with the case where the laminate is directly sandwiched by a hot press device and heated and pressed as described in the prior art, , The fixed heating and pressing member 51 of the pressing unit 50 and the movable heating and pressing member 5
Since the laminate 68 is heated and pressed while holding the laminate 68 under pressure, the laminate 68 can be hot-pressed at a higher temperature.
(Or moved to the cooler 71), and
Molding time can be shortened. In other words, when manufacturing the solid polymer electrolyte element 58 having high dimensional accuracy, the laminate is directly heated and pressed in the prior art, and therefore the laminate is pressed by a hot press until the softened state of the laminate is stabilized.
On the other hand, in the first embodiment, since the stacked body 68 is pressed and held by the pressing unit 50, the stacked body 68 is kept in a softened state, that is, while maintaining the dimensional accuracy at a higher temperature, the hot The pressing unit 50 can be separated from the press 70.

Further, since the process is shifted from step 3 to step 4 by the endless belt device 66, the manufacturing time of the manufacturing process for manufacturing the solid polymer electrolyte element 58 with high dimensional accuracy can be shortened.
For example, in the case of the prior art, hot press for 10 minutes,
It took 10 minutes for cooling. Further, the solid polymer electrolyte element 68 can be manufactured continuously, and mass production can be performed. Step 2 may not be necessary. However, when the process 2 exists, the heating time by the hot press 70 can be shortened.
6, and the polymer electrolyte element 58 can be continuously manufactured by heating and pressing to be suitable for mass production.

Although the hot press 70 has been described as the hot unit, the hot unit may be a hot device without a press function. In this case, the pressing unit 50 holds the fixed heating / pressing member 51 and the movable heating / pressing member 52 at a predetermined interval during the heating / pressing molding at the installation position of the hot device. It is necessary to have a pressure mechanism capable of However, FIG.
As described with reference to FIG. 5, if the hot unit 70 is used as the hot unit and the arm 53 and the pressurizing spring 57 are used as the pressing and holding mechanism of the pressing unit 50, Since no pressing force is required in the heating and pressing molding step, the pressing unit 50 can be reduced in size and is suitable for mass production.

Embodiment 2 Hereinafter, a second embodiment of the present invention will be described. FIG. 6 is a schematic configuration diagram of a heating and pressing molding apparatus for manufacturing a solid polymer electrolyte device according to Embodiment 2 of the present invention. However, FIG. 6 shows a schematic configuration, and only the movable heating and pressing plate and the fixed heating and pressing plate which are main parts of the pressing unit are shown. In FIG. 6, reference numeral 74 denotes a turntable device which is a moving mechanism for transporting the pressurizing unit 50. In the second embodiment, the pressurizing unit 50 is transported by the turntable device 74 instead of the endless belt device 66 of the first embodiment. As shown in FIG. 6, a plurality of pressurizing units 50 are set on a turntable device 74, and a solid polymer electrolyte element 58 is manufactured. Here, each pressurizing unit 5 in FIG.
The size of 0 is different because the polymer electrolyte elements 58 of different sizes are manufactured. Naturally, when manufacturing the solid polymer electrolyte elements 58 of the same size, the pressing unit 5 having the same shape as in the first embodiment is used.
Use multiple 0s. Since the turntable device 74 is used, the representative length of the heat-press molding device can be reduced as compared with the first embodiment. Other configurations, operations, and effects are the same as those in the first embodiment, and thus description thereof will be omitted.

Embodiment 3 Hereinafter, a third embodiment of the present invention will be described. FIG. 7 is a diagram showing thermal expansion coefficients of four types of ceramics according to Embodiment 3 of the present invention. In the first and second embodiments, the pressing surfaces of the fixed heating / pressing member 51 and the movable heating / pressing member 52 have been described as being made of a material having a low coefficient of thermal expansion. It is desirable that the material has a low coefficient of thermal expansion between room temperature and about 200 degrees. On the other hand, it is conceivable to use a material substantially equal to the coefficient of thermal expansion of the laminate 68. In this case, however, the coefficient of thermal expansion is increased to some extent.
1 and the pressing surface of the movable heating and pressing member 52 are undesirably warped. As shown in FIG. 7, for example, the ceramic of LOTEC-TC (trade name) manufactured by Asahi Glass Co., Ltd. has almost zero coefficient of thermal expansion between room temperature (about zero degree) and about 200 degrees C. Almost thermally deformed (especially warped) even when a heat cycle is applied in pressing
Nothing. Therefore, if the pressing surfaces of the fixed heating / pressing member 51 and the movable heating / pressing member 52 are formed of low thermal expansion coefficient ceramics, the solid polymer electrolyte element 58 having high shape accuracy can be obtained.
Can be obtained. It is needless to say that when a heat cycle in the heat and pressure molding is applied, if the thermal deformation is within an allowable range, the ceramic may be formed of a metal member instead of the low thermal expansion coefficient ceramic.

Embodiment 4 Hereinafter, a fourth embodiment of the present invention will be described. FIG. 8 is a schematic configuration diagram of a heating and pressing molding apparatus for manufacturing a solid polymer electrolyte device according to Embodiment 4 of the present invention. In FIG. 8, reference numeral 75 denotes a reciprocating mechanism that is a moving mechanism that moves the pressing unit 50 while holding the stacked body 68 under pressure. The reciprocating mechanism 75 includes a guide member 75B having a guide 75b and a slider 75C that supports the base 57 and reciprocates between the X point and the Y point along the guide 75b. The heating and pressing molding apparatus of the fourth embodiment is an apparatus suitable for small-quantity production as compared with the heating and pressing molding apparatus described in the first and second embodiments. Further, as compared with the heat and pressure forming apparatus shown in FIGS. 1 and 6, there is no preheating mechanism 69, cooler 71 and take-out mechanism 72. The other configuration is the same as that of the first embodiment, and a description thereof will be omitted.

Next, the operation will be described. [Step 1] The laminate 68 is set on the pressing unit 50 by the feeder 67 in the same manner as in Embodiment 1.
The stacked body 68 is pressed and held between the fixed heating and pressing member 51 and the movable heating and pressing member 52. Next, in a state where the stacked body 68 is sandwiched by the pressure unit 50 under pressure, the reciprocating mechanism 75 is operated to move the pressure unit 50 to the point Y in FIG.

[Step 2] Then, the laminate 68 is pressed and held by the pressing unit 50 and the hot press 70 is pressed.
By pressing the fixed heating and pressing member 51 and the movable heating and pressing member 52 at a predetermined interval,
Heat and pressure mold at ~ 200 degrees for about 2 minutes. In this process,
The solid polymer electrolyte membrane 59 is softened or partially melted, and the anode 6
0 and the cathode 61 are embedded in the solid polymer electrolyte membrane 59 to be integrated. After the completion of heat and pressure molding, hot press 70
Is separated from the pressure unit 50. At this time, the anode 60 and the cathode 61 are embedded in the solid polymer electrolyte membrane 59 to be integrated, and there is almost no repulsion from the softened body in which the laminate 60 is softened. The distance between the fixed heating and pressing member 51 and the movable heating and pressing member 52 is a predetermined distance due to the urging force of the spring 56. Therefore, after the hot press molding by the hot press 70,
The dimension in the thickness direction of the laminate 68 is accurately maintained.
Next, the reciprocating mechanism 75 is operated in a state where the stacked body 68 is sandwiched by the pressing unit 50 under pressure, and the pressing unit 5 is pressed.
0 is moved to the point X in FIG.

[Step 3] Next, the pressing unit 50 presses the stacked body 68 while pressing the stacked body 68.
Is allowed to cool naturally. After the cooling is completed, an external force is applied to the end of the arm 53 of the pressurizing unit 50 on the pressurizing spring 56 side to open the fixed heating and pressurizing member 51 and the movable heating and pressurizing member 52 of the pressurizing unit 50. In this state, the solid polymer electrolyte element 58 obtained by heating and pressing the laminate 68 is taken out.
Thereafter, Steps 1 to 3 are repeated.

With the above configuration, the first embodiment
As well as the above, the solid polymer electrolytic element 58 having high dimensional accuracy can be manufactured, and the heating and pressing molding apparatus can be downsized. In order to reduce the manufacturing time, a cooler 70 is arranged at the position shown in FIG.
It may be configured to cool 0. Further, in the case of the fourth embodiment, if the cooling means described in the next fifth embodiment is applied, the pressurizing unit 50 only reciprocates and does not rotate, so the arrangement and connection of the supply pipe 78 (FIG. 9) Is simpler and more effective.

In the above description, as shown in FIG. 8, one hot press 70 and one pressing unit 50
However, a plurality of pressure units 50 may be provided for one hot press 70. At this time, when manufacturing a plurality of solid polymer electrolyte elements 58,
The manufacturing time can be reduced. This is because when one of the pressure units 50 is being cooled, the other pressure unit 50 can be heated and pressed, and the hot press 7
This is because the operating rate of 0 becomes higher.

Embodiment 5 Hereinafter, a fifth embodiment of the present invention will be described. FIG. 9 is a diagram showing a configuration of a cooling unit of a pressurizing unit according to Embodiment 5 of the present invention. In FIG. 9, 77 is provided inside the fixed heating / pressing member 51 and the movable heating / pressing member 52, and allows compressed air to pass through the inside to cool the fixed heating / pressing member 51 and the movable heating / pressing member 52. The cooling passage 78 is a cooling medium supply device that supplies compressed air to the supply pipe 80 and is a compressed air supply device.
79 is an operation valve for adjusting the flow rate of the compressed air, and 80 is a supply pipe connected to the cooling passage 77 and the operation valve 79. The cooling means includes the cooling passage 77, the supply pipe 80, the operation valve 79, and the compressed air supply device 78. Although the example has been described in which the cooling medium is compressed air, the cooling medium may be a liquid such as water or oil, or a gas other than air. Other configurations are the same as those of the first to third embodiments, and thus description thereof will be omitted.

Next, the operation will be described. After the laminate 68 is heated and pressed by the hot press device 69 or the hot device, the pressing unit 50 is moved from the hot press device 69 or the hot device. In this state, the operating valve 79
The compressed air is supplied to the cooling passage 77 by the compressed air supply device 78.
To supply. By this operation, the fixed heating / pressing member 51 and the movable heating / pressing member 52 are cooled, and the laminated body 68 in a state of being pressed and sandwiched and being softened is cured.

With the above configuration, the fixed heating and pressing member 51 and the movable heating and pressing member 52 can be directly cooled, and the cooling efficiency is high. In addition, the fixed heating and pressing member 5
1 and the movable heating and pressing member 52 have a small heat capacity, so that they can be sufficiently cooled even by cooling with compressed air. Therefore, since compressed air is used as the cooling medium, the cooling means can be realized with a simple configuration, and the handling is simple.
FIG. 9 illustrates an example in which the cooling passage 77 is provided inside the fixed heating / pressing member 51 and the movable heating / pressing member 52. However, the cooling passage 77 is connected to the fixed heating / pressing member 51 and the movable heating / pressing member 52. It may be configured to be provided on the outer surface of the pressure member 52.
At this time, the cooling efficiency of the fixed heating / pressing member 51 and the movable heating / pressing member 52 is slightly reduced, but the strength of the fixed heating / pressing member 51 and the movable heating / pressing member 52 is increased. It is possible to do.

[0039]

According to the present invention, there is provided a heat and pressure forming apparatus comprising: a pressing unit for pressing and holding a laminate of a plurality of films including a polymer film by a pair of pressing members; A hot unit that heats the pressurizing member in a state of being pressurized so as to form an interval and heat-press-molds the laminate, and press-clamps the heat-pressed laminate by the pressurizing member. A cooling unit for cooling the pressing member in a state, wherein the pressing unit or the hot unit is configured so as to press the pressing members so as to be at a predetermined interval to form a polymer molded film. , Maintaining the dimensional relationship of the polymer molded membrane,
In addition, it is possible to provide a heating and pressing molding apparatus capable of molding a polymer molded film in a short time.

Also, since a moving mechanism is provided for moving the pressing unit from the hot unit while holding the laminate under pressure, the polymer formed film can be formed continuously.

The cooling means is a cooler for cooling the pressurizing member from the outside, and the moving mechanism sequentially moves the plurality of pressurizing units from the hot unit installation position to the cooler installation position. A molded film can be continuously formed at high speed.

Further, since the cooling means has a cooling passage provided in the pressurizing member and through which a cooling medium passes, and a cooling medium supply device for supplying the cooling medium, it is possible to cool the pressurizing member in a short time. The polymer molded film can be formed in a short time.

Also, since the cooling medium is compressed air, a cooling means including a cooling path can be configured with a simple configuration.

Further, since the pressing surface of the pressing member is formed of low thermal expansion ceramics, the pressing member hardly deforms even when a heat cycle of heating and cooling is applied. High accuracy can be achieved.

The polymer molded membrane is a solid polymer electrolyte element. In the solid polymer electrolyte element, a positive electrode membrane is disposed on one surface of an ion-conductive solid polymer electrolyte membrane, Since the negative electrode film is arranged on the substrate, the dimensional relationship of the solid polymer electrolyte element is maintained, and the solid polymer electrolyte element can be formed in a short time.

Further, in the heat-press molding method according to the present invention, a step of pressing a laminate of a plurality of films including a polymer film with a pair of pressing members, and a step of setting a predetermined interval between the pressing members. Pressurizing and heating the pressurizing member to heat-press and mold the laminate, and after the heating and press-forming step, the laminate is pressed and sandwiched by the pressurizing member. The step of cooling the pressurizing member and the step of forming the polymer molded film include the step of cooling, thereby providing a heat and pressure molding method capable of maintaining the dimensional relationship of the polymer molded film and molding the polymer molded film in a short time. can do.

Further, since the method includes a step of moving the pressing member while the laminate is pressed and held by the pressing member, the polymer molded film can be formed continuously.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a heating and pressing molding apparatus for manufacturing a solid polymer electrolyte device according to Embodiment 1 of the present invention.

FIG. 2 is a side view of FIG. 1 taken along the line II-II, and is an explanatory diagram illustrating a configuration of a pressurizing unit.

FIG. 3 is a sectional view taken along line III-III of FIG. 2;

FIG. 4 is a configuration diagram showing a configuration of a solid polymer electrolyte device according to Embodiment 1 of the present invention, where (a) is a plan view,
(B) also shows the DC power supply, and (b) shows IVb-IVb
It is a line sectional view.

FIG. 5 is a flowchart showing an operation flow of a heating and pressing molding step for manufacturing the solid polymer electrolyte device according to Embodiment 1 of the present invention.

FIG. 6 is a schematic configuration diagram of a heating and pressing molding apparatus for manufacturing a solid polymer electrolyte device according to Embodiment 2 of the present invention.

FIG. 7 is a diagram showing thermal expansion coefficients of four types of ceramics according to Embodiment 3 of the present invention.

FIG. 8 is a schematic configuration diagram of a heating and pressing molding apparatus for manufacturing a solid polymer electrolyte device according to Embodiment 4 of the present invention.

FIG. 9 is a diagram showing a configuration of a cooling unit of a pressurizing unit according to Embodiment 5 of the present invention.

FIG. 10 is a schematic view of a conventional laminated plate manufacturing apparatus.

[Explanation of symbols]

Reference Signs List 50 pressure unit 51 fixed heating / pressing plate 52 movable heating / pressing plate 53 arm 54 support column 55a pin 55b pin 56 pressurizing spring 57 base 58 solid polymer electrolyte element 59 solid polymer electrolyte membrane 60 anode 61 cathode 66 endless belt device (moving Mechanism) 67 feeder 68 laminated body 69 preheating mechanism 70 hot press (hot unit) 71 cooler (cooling means) 72 take-out mechanism 73 interval adjustment member 74 turntable device 75 reciprocating mechanism 75B guide member 75C slider 77 cooling path 78 compressed air Supply device 79 Operating valve 80 Supply pipe

Claims (9)

[Claims] 1. A pressure unit which presses and holds a laminate of a plurality of films including a polymer film with a pair of pressure members, and a pressure unit in which the pressure members are pressurized so as to have a predetermined interval. A hot unit for heating the pressurizing member to heat and pressurize the laminate, and cooling means for cooling the pressurizing member while the pressurized pressurized laminate is pressed and held by the pressurizing member Wherein the pressurizing unit or the hot unit is configured to pressurize the pressurizing members so as to be at a predetermined interval, thereby forming a polymer molded film. 2. The heating and pressing forming apparatus according to claim 1, further comprising a moving mechanism for moving the pressing unit from the hot unit in a state where the laminate is pressed and held. 3. The cooling means is a cooler for cooling the pressurizing member from the outside, and the moving mechanism is configured to sequentially move the plurality of pressurizing units from the hot unit installation position to the cooler installation position. The heating and press forming apparatus according to claim 2, wherein: 4. The cooling device according to claim 1, wherein the cooling means includes a cooling passage provided in the pressurizing member and through which a cooling medium passes, and a cooling medium supply device that supplies the cooling medium.
The heating and press forming apparatus according to the above. 5. The heating and press forming apparatus according to claim 4, wherein the cooling medium is compressed air. 6. The apparatus according to claim 1, wherein a pressing surface of the pressing member is formed of a low thermal expansion ceramic. 7. The polymer molded membrane is a solid polymer electrolyte element. In the solid polymer electrolyte element, a positive electrode membrane is disposed on one surface side of an ionic conductive solid polymer electrolyte membrane and on the other surface side. Wherein a negative electrode film is disposed on the substrate.
7. The heat and pressure molding device according to any one of 6. 8. A step of pressing and holding a laminate of a plurality of films including a polymer film with a pair of pressing members, pressing the pressing members so that a predetermined interval is formed between the pressing members, and pressing the pressing members. Heating and press-molding the laminate, and after the heat-press molding step, cooling the pressurized member while pressing and holding the laminate by the pressurizing member. A heating and press forming method characterized by forming a molecular formed film. 9. The heat and pressure forming method according to claim 8, further comprising the step of moving the pressing member while the laminate is pressed and held by the pressing member.