TWI425699B - Method and facility for producing separator for polymer electrolyte fuel cell - Google Patents

Description

Method and device for manufacturing separator for solid polymer fuel cell

The present invention relates to a method and an apparatus for producing a separator for a polymer electrolyte fuel cell.

In general, a polymer electrolyte fuel cell is a hydrogen obtained by reforming a pure hydrogen or an alcohol by a fuel, and is electrically controlled by a reaction between the hydrogen and oxygen in the air to obtain electricity.

The polymer electrolyte fuel cell uses a solid hydrogen ion selective permeation type organic film for the electrolyte. Therefore, it is used in the same manner as the conventional alkaline fuel cell, tannic acid fuel cell, molten carbonate fuel cell, or solid electrolyte fuel cell. The fluid medium can be made smaller as a fuel cell of an aqueous electrolyte or a molten salt electrolyte of an electrolyte, and contributes to the development of an electric vehicle or other uses.

Next, as shown in Fig. 1, the polymer electrolyte fuel cell is formed of a separator 1 having a convex portion 1a and a recess 1b, a hydrogen electrode 2, a polymer electrolyte membrane 3, and an air (oxygen) electrode 4; The separator 1 of the convex portion 1a and the concave portion 1b is formed in a double layer to form a battery 5 having a sandwich structure, and the battery 5 is mostly laminated to form a laminated battery 6, and the space of the separator 1 on the side where the hydrogen electrode 2 is in contact with the hydrogen flow path 7 is formed. At the same time, an air (oxygen) flow path 8 is formed in a space on the side where the air electrode 4 is in contact with the separator 1, and a cooling water flow path 9 is formed in a space on the side where the separators 1 overlap each other.

In the above-described separator 1, it is assumed that the peripheral portion is flat by press molding, and the bulging portion formed by the plurality of convex portions 1a and the concave portion 1b is formed at the center portion. However, when the molded material is actually tried to form a metal thin plate, The bulging portion formed by the convex portion 1a and the concave portion 1b generates ductile cracks, so that it is difficult to press-form the shape as described above. On the other hand, if a large number of separators 1 are to be produced by press molding, there is production. The problem of reduced efficiency.

Therefore, recently, it has been proposed to arrange a pair of rollers having a molding region having a concave portion and a convex portion formed on the surface, and to introduce a material formed of a thin metal plate between the rollers to be pressed, whereby continuous production has been formed corresponding to the above. A separator 1 of a flow path (hydrogen flow path 7, air flow path 8, and cooling water flow path 9) of the concave portion and the convex portion of the drum.

In addition, as a prior art example of the apparatus for manufacturing the separator 1 of the polymer electrolyte fuel cell shown in FIG. 1, for example, Patent Document 1 is known.

[Advanced technical literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2002-190305

However, in the above-mentioned separator 1, the material to be formed which is formed of a metal thin plate such as stainless steel is more and more required to be formed into a thinner (having a thickness of about 0.1 mm) and has high precision, and a device for simple rolling is used because of the roller. Looseness between the shell and the main bearing axle box or looseness between the drum and the main bearing makes it impossible to obtain the required accuracy.

In view of the above problems, the present invention provides a method for producing a separator for a polymer electrolyte fuel cell which can form a high-precision separator by efficiently forming a high-precision separator without forming a metal material. Device.

In the method for producing a separator for a polymer electrolyte fuel cell according to the present invention, a molding region in which a concave portion and a convex portion are formed on the surface and a non-molding region in which a concave portion and a convex portion are not formed are alternately arranged in the circumferential direction, and are arranged to face each other. a method of manufacturing a separator for a polymer electrolyte fuel cell in which a separator formed of a metal thin plate is introduced and pressed, thereby continuously producing a separator having a flow path corresponding to the concave portion and the convex portion. It is characterized in that the gap between the drum and the main bearing axle box are removed in the vertical direction and the horizontal direction before the molding is started, and the gap between the drums is formed in advance. It is wider than the set value, and the looseness between the drum and the main bearing is removed by the operation of removing the cylinder during the non-molding. In this state, the push-up cylinder is extended by the gap between the rollers as a set value. When the molded material is introduced into the drum to form a molding load, it is judged that it enters the molding region, and the set pressure of the cylinder for loosening removal during the non-molding is determined. 0, the molding of the material to be molded is performed, and when the molding load becomes zero, it is determined that the non-molding region is entered, and the push-up cylinder is contracted so that the gap between the rollers is wider than the set value, and the molding is not formed. When the cylinder is removed by loosening, the looseness between the drum and the main bearing is removed, and the gap between the upper cylinder and the drum is again set to a set value, and when the molding load is generated, it is judged that the molding area is entered. The setting pressure of the cylinder for removing looseness during the non-molding is set to 0, and the molding material is molded. Hereinafter, loosening between the casing of the drum and the main bearing axle box is performed, and the non-molding region is repeatedly performed. Loose removal between the drum and the main bearing and molding of the formed material in the above-mentioned forming region.

On the other hand, in the apparatus for manufacturing a separator for a polymer electrolyte fuel cell according to the present invention, a molding region in which a concave portion and a convex portion are formed on the surface and a non-molding region in which a concave portion and a convex portion are not formed are alternately arranged in the circumferential direction. Further, the molded article formed of a thin metal plate is introduced between the pair of opposed rollers, and the solid polymer fuel cell separator is formed by continuously producing a separator having a flow path corresponding to the concave portion and the convex portion. The plate manufacturing apparatus is characterized by comprising: a push-up cylinder that can adjust a gap between the rollers; and a space between the casing of the drum and the main bearing axle box to remove looseness in the vertical direction and the horizontal direction a cylinder for loosening removal; an auxiliary bearing that is engaged with the neck of the drum; and a cylinder for removing looseness during non-forming between the auxiliary bearing and the main bearing; Load detector; according to the molding load detected by the load detector, the above-mentioned push-up cylinder and the cylinder for frequent loosening removal and loosening during non-forming The cylinders respectively output motion signals, and often perform loose removal between the casing of the drum and the main bearing axle box, and repeatedly perform loosening removal between the drum and the main bearing in the non-molding area and molding of the formed material in the molding region. Controller.

According to the above means, the following effects can be obtained.

Because the looseness between the casing of the drum and the main bearing axle box is removed by the action of removing the cylinder from time to time, the looseness between the drum and the main bearing is removed by the action of loosening the cylinder for non-forming, so that the drum is Since the gap can be accurately maintained at a set value, even a molded material formed of a very thin metal thin plate can be molded to a desired precision, and a high-precision separator can be efficiently produced.

In the apparatus for manufacturing a separator for a polymer electrolyte fuel cell, the roller shaft portion of each of the rollers passes through a speed reducer each having a wave gear mechanism, and the respective servo motors are directly connected, and the direct connection can respectively correspond to the speed reducer. Since the main bearing axle box is used, the rotation direction of the rotary power transmission system can be loosened, and the rotational power can be efficiently transmitted to the drum.

According to the method and apparatus for producing a separator for a polymer electrolyte fuel cell of the present invention, it is possible to obtain an excellent effect that the molded article formed of a thin metal plate can be molded with high precision and can be efficiently manufactured without lowering the production efficiency. High precision partition.

[Best Embodiment of the Invention]

Hereinafter, embodiments of the invention will be described with reference to the accompanying drawings.

2 to 7 are embodiments of the present invention, 10 is a casing, 11 is a main bearing axle box disposed in the casing 10, 12 is a main bearing disposed in the bearing axle box 11, and 13 is a main bearing 12 a pair of rollers supported on the upper and lower sides of the casing 10 so as to be rotatable and opposed to each other. The rollers 13 are alternately formed in the circumferential direction with a concave portion 14a and a convex portion 14b formed on the surface as shown in Figs. 2 and 3; And a non-molded region in which the concave portion 14a and the convex portion 14b are not formed.

In the case of the present embodiment, in the drum main portion 13a of the drum 13, a circular arc-shaped metal mold having a molding portion having a concave portion 14a and a convex portion 14b formed on the surface thereof is engaged by a fastening member 16 such as a key 15 and a bolt. 14. Thereby, the molding region and the non-molding region are alternately formed in the circumferential direction of the drum 13.

Further, in the lower portion of the casing 10, a push-up cylinder 17 for adjusting a gap between the rollers 13 by pressing the main bearing axle box 11 of the lower drum 13 up and down is disposed in the casing 10 of the drum 13 Between the main bearing axle box 11 and the cylinders 18 and 19 for removing the looseness in the vertical direction and the horizontal direction (see FIGS. 2 and 4), the neck portion 13b of the drum 13 An auxiliary bearing 20 is fitted, and between the auxiliary bearings 20, a non-molding loose removal cylinder 21 capable of removing looseness between the drum 13 and the main bearing 12 is disposed (see FIGS. 2 and 5). A load detector 23 such as a load sensor for detecting the molded load 23a is provided on the upper portion of the casing 10, and the above-described push-up cylinder 17 and the loosening of the lift cylinder 23 are provided based on the molding load 23a detected by the load detector 23. The controller 24 for outputting the operation signals 17a, 18a, 19a, and 21a by the cylinders 18 and 19 and the non-molding loose removal cylinder 21 are respectively output.

Further, the above-described non-molding loosening cylinder 21 is fitted between the auxiliary bearing caps 22 which are formed to face the outer periphery of the auxiliary bearing 20.

On the other hand, the roller shaft portion 13c of each of the rollers 13 is directly connected to the respective servomotors 26 through the reduction gears 25 each having a wave gear mechanism of a so-called Harmonic Drive (registered trademark), and the direct connection can be respectively decelerated. The main bearing axle box 11 of the machine 25.

Here, the speed reducer 25 including the above-described wave gear mechanism has a peripheral elliptical wave generator 27 as shown in Figs. 6a to 6c; the outer periphery is formed with a plurality of external teeth while being externally inserted through the bearing 28. The electric wave generator 27, and the elastically deformable externally toothed gear 29 which changes the bending position in the circumferential direction as shown in FIGS. 6b and 6c by the rotation of the electric wave generator 27; and the externally toothed gear The outer peripheral side of the outer teeth 29 has an inner tooth that can be fitted to the outer teeth of the externally toothed gear 29, and the fixed internal gear 30 that does not rotate by changing the bending position of the externally toothed gear 29 to change the engagement position of the external teeth A shaft 26a (see FIG. 2) of the servo motor 26 is fitted to the shaft hole 27a of the radio wave generator 27, and a drum shaft portion 13c of the drum 13 is connected to the external gear 29 . Further, the number of external teeth of the external gear 29 is formed to be smaller than the number of internal teeth of the fixed internal gear 30.

Then, when the radio wave generator 27 is rotated in the clockwise direction by the driving of the servo motor 26, for example, in the sixth embodiment, the externally toothed gear 29 is elastically deformed, and in the long axis portion of the ellipse of the electric wave generator 27, The external teeth of the external gear 29 are internal teeth that will engage the fixed internal gear 30. In the elliptical short-axis portion of the electric wave generator 27, the external teeth of the external gear 29 are completely disengaged from the internal teeth of the fixed internal gear 30. As a result, the meshing position of the external teeth of the externally toothed gear 29 and the internal teeth of the fixed internal gear 30 is gradually moved in the circumferential direction (clockwise direction) in order (refer to FIG. 6b), when the electric wave generator 27 rotates. At one turn, the meshing position of the external teeth of the externally toothed gear 29 and the internal teeth of the fixed internal gear 30 is moved from the position at the start of rotation (refer to Fig. 6c). Therefore, the externally toothed gear 29 is located at a position closer to the engagement position at the start of rotation than the number of external teeth of the fixed internal gear 30 (refer to FIG. 6c), and based on this, the external gear 29 is the number of teeth. The difference is moved in the opposite direction to the rotation direction of the radio wave generator 27 (counterclockwise in Fig. 6c), and this movement is caused to be a rotation output which is generated in the drum shaft portion 13c of the drum 13.

Incidentally, the backlash of the reducer 25 itself directly affects the rotational variation of the drum 13, so the backlash must be small, as described above with the reducer 25 having the wave gear mechanism, because the backlash is extremely small, so According to the present invention, the loosening of the rotary power system (variation in the rotational phase difference) is reduced to a level that can be ignored by the speed reducer 25.

In addition, as shown in Fig. 7, before the start of molding, the controller 24 outputs an operation signal 18a for setting the set pressure of the cylinders 18 and 19 for the time-lapse loosening to P ₀ , 19a, in a state in which the looseness in the vertical direction and the horizontal direction between the case 10 of the drum 13 and the main bearing shaft case 11 has been removed, an operation signal 17a for causing the push-up cylinder tube 17 to contract is output from the controller 24, The gap between the drums 13 is formed to be wider than the set value g _a , and the operation signal 21a that can set the set pressure of the loosening cylinder 21 to be non-molded to P ₀ is output from the controller 24, and the drum is removed. 13 and looseness between the main bearing 12, in this state, the output of the controller 24 allows the elongation of the pushing cylinder 17 is S _t operation signal 17a, the drum 13 so that a set value of the gap g _a , the molded material 1A (see FIG. 3 ) formed of a thin metal plate is introduced between the rollers 13 at the time of occurrence of the molding load 23 a detected by the load detector 23, and it is determined that the molding region enters the molding region. Controller 24 output can make the above Molding loose removed with the setting cylinder 21 is pressed into the operation signal is 0. 21a from P _0, molding the above is to be profiled. 1A, in the forming load 23a a point of time 0, it is determined to enter the non-forming region from the above-described output controller 24 allows the elongation of the pushing cylinder 17 is contracted from S _t S ₁ into the operation of the signal 17a, so that the roll gap 13 becomes wider than g _a set value g _1, at the same time from the the controller 24 outputs the above-described non-molding can be removed by loosening the set cylinder 21 the operation signal pressure P becomes _0. 21a, removing loose between the drum 12 and the main bearing 13, and the controller 24 can output again from above The extension amount of the push-up cylinder tube 17 is extended from S _{1 to} the operation signal 17 a of S _t , and the gap between the rollers 13 is set to a set value g _a . At the time when the molding load 23 a is generated, it is determined that the molding region is entered. The operation signal 21a which can set the setting pressure of the non-molding loosening cylinder 21 to P0 from _{0 is} outputted from the controller 24, and the molding material 1A is molded. Hereinafter, the casing 10 of the drum 13 is often used. And spindle Removing looseness between the pedestal 11 while repeating the above-described non-forming areas of the drum 13 and forming a main bearing 12 and the looseness between the removal region is formed into the above-described profile. 1A.

Next, the action of the above embodiment will be explained.

First, in the preparation stage, before the start of molding, the controller 24 outputs the operation signals 18a and 19a which can set the set pressure of the cylinders 18 and 19 for the frequent loosening removal to P ₀ , and the casing 10 and the main body of the drum 13 In a state in which the looseness of the vertical direction and the horizontal direction between the bearing housings 11 has been removed, an operation signal 17a for contracting the push-up cylinders 17 is outputted from the controller 24, and the gap between the rollers 13 is maintained to be set to be larger than the setting. g _a value is wider, the output of the controller 24 causes said non-molding pressure is removed by loosening the set cylinder 21 the operation signal P ₀ to 21a, removing loose between the drum 13 and 12 from the main bearing, in which state, the output of the controller 24 allows the pushing cylinder 17 on elongation of the operation signal S _t 17a, so that the roll gap 13 is set to a value g _a.

Then, when the material to be molded 1A (see FIG. 3) formed of a thin metal plate is introduced between the rolls 13 and the molding is started, the molding load 23a detected by the load detector 23 rises, and at this point of time, it is judged to enter. In the above-described molding area, the operation signal 21a which can set the setting pressure of the loosening cylinder 21 for non-molding from P ₀ to 0 is outputted from the controller 24, and the molding material 1A is molded.

Then, when the molding load 23a is at 0, it is determined that the non-molding region is entered, and the operation signal 17a that can cause the extension of the push-up cylinder 17 to contract from S _t to S ₁ is output from the controller 24, the gap 13 g _a drum expand and become wider than the setting value g _1, while allowing the above-described non-molded from the output of the controller 24 is removed by loosening the set cylinder 21 the operation signal pressure P becomes _0, 21a, The looseness between the drum 13 and the main bearing 12 is removed, and the operation signal 17a which can extend the extension amount of the push-up cylinder 17 from S ₁ to S _t is output from the controller 24, and the gap between the rollers 13 is removed. Is the set value g _a .

Next, at the time when the molding load 23a is generated, it is determined that the molding region is entered, and the operation signal 21a that can set the setting pressure of the loosening cylinder 21 to be non-molded from P ₀ to 0 is output from the controller 24, The molding of the above-mentioned molded material 1A is performed. Hereinafter, the loosening between the casing 10 of the drum 13 and the main bearing axle box 11 is performed, and the loosening between the drum 13 and the main bearing 12 in the non-molding region is repeated. And molding of the material to be molded 1A in the above-mentioned molding region.

As described above, the looseness between the casing 10 of the drum 13 and the main bearing axle box 11 is removed by the operation of the cylinders 18 and 19 which are often loosened, and the looseness between the drum 13 and the main bearing 12 is made by non-forming. When the movement of the cylinder 21 for loosening removal is removed, and the gap between the rollers 13 can be accurately maintained at the set value g _a , even the molded material 1A formed of a very thin metal thin plate can be molded. In the accuracy, it is possible to efficiently manufacture the separator 1 (see FIG. 1) in which the flow paths (the hydrogen flow path 7, the air flow path 8, and the cooling water flow path 9) corresponding to the concave portion 14a and the convex portion 14b are formed.

Further, the drum shaft portion 13c of each of the rollers 13 is directly connected to the respective servomotors 26 through the speed reducer 25 including the wave gear mechanism, and is directly coupled to the main bearing shafts that can respectively correspond to the speed reducer 25. Since the servo motor 26 is driven, the rotational power of the servo motor 26 is transmitted to the speed reducer 25 including the wave gear mechanism through the shaft 26a, and is decelerated and transmitted to the drum shaft portion 13c of each drum 13, As a result, each of the rollers 13 can be rotated by itself. At this time, since the speed of the servo motor 26 fluctuates to a low value of about ±0.01%, the vibration caused by the servo motor 26 is small, and the shaft 26a of the servo motor 26 is directly coupled to the speed reducer 25 having the wave gear mechanism so as not to Since there is looseness due to the backlash of the gear or the gap of the joint, the rotational force with less vibration is transmitted to the speed reducer 25 having the wave gear mechanism. Further, since the speed reducer 25 including the wave gear mechanism is a speed reducer having a very small backlash, the rotational force of the servo motor 26 is transmitted to the drum 13 in a state where the vibration force is suppressed, so that the rotation of the drum 13 is stable. vibration.

In addition, the amount of pushing in the molding region can be arbitrarily changed according to the difference in the elastic deformation of the molding region due to the difference in the mounting portion of the arc-shaped metal mold 14, and the long molding amount of the material to be molded 1A can be performed. Certain mode control. For example, when the mounting portion of the metal mold 14 is in the form of a close contact with the outer peripheral portion of the flat surface of the drum 13, as shown in Fig. 3, when the molded material 1A is molded directly under the mounting portion of the center key 15, the spring constant of the vicinity of the mounting portion 15 key small, large deformation of the recess, and therefore, it is possible to make the elongation ratio S _t push cylinder 17 is further increased, the gap 13 enables the drum than the normal setting value g _A also reduces the push to facilitate the execution of the mode.

In this way, the production efficiency is not lowered, and the material 1A formed of a thin metal plate can be molded with high precision, and the separator 1 having high precision can be efficiently manufactured.

In addition, the method and the apparatus for producing the separator for a polymer electrolyte fuel cell of the present invention are not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention.

1. . . Partition

1A. . . Molded material

1a. . . Convex

1b. . . Concave

7. . . Hydrogen flow path (flow path)

8. . . Air flow path (flow path)

9. . . Cooling water flow path (flow path)

10. . . shell

11. . . Main bearing axle box

12. . . Main bearing

13. . . roller

13a. . . Roller body

13b. . . neck

13c. . . Roller shaft

14. . . Metal mold

14a. . . Concave

14b. . . Convex

17. . . Push up cylinder

17a. . . Motion signal

18. . . Often loosening the cylinder

18a. . . Motion signal

19. . . Often loosening the cylinder

19a. . . Motion signal

20. . . Auxiliary bearing

twenty one. . . Loose cylinder for non-forming

21a. . . Motion signal

twenty two. . . Auxiliary bearing cap

twenty three. . . Load detector

23a. . . Molding load

twenty four. . . Controller

25. . . Reducer

26. . . Servo motor

27. . . Radio wave generator

29. . . External gear

30. . . Fixed internal gear

Fig. 1 is an enlarged cross-sectional view showing an example of a polymer electrolyte fuel cell.

Fig. 2 is a cross-sectional view showing the entire side of the embodiment of the present invention.

Fig. 3 is a cross-sectional view showing a drum of an example of the present invention, which corresponds to a cross-sectional view taken along line III-III of Fig. 2.

Fig. 4 is a view showing a cylinder for frequent loosening removal in which the removable roller and the main bearing are loosened between the removable roller and the main bearing according to the embodiment of the present invention, and corresponds to the direction indicated by the arrow in Fig. IV-IV.

Fig. 5 is a view showing a cylinder for removing looseness and an auxiliary bearing during non-molding which are loose between the removable roller and the main bearing according to the embodiment of the present invention, and corresponds to a direction indicated by an arrow in Fig. 2 - V-V.

Fig. 6a is a front view for explaining the principle of the wave gear mechanism of the speed reducer of the apparatus for manufacturing a separator for a polymer electrolyte fuel cell of Fig. 2, and shows a state before the start of rotation of the wave generator.

Fig. 6b is a front view showing the principle of the wave gear mechanism of the speed reducer used in the apparatus for manufacturing a separator for a polymer electrolyte fuel cell of Fig. 2, and shows a state in which the wave generator is rotated 90 degrees clockwise.

Fig. 6c is a front view showing the principle of the wave gear mechanism of the speed reducer used in the apparatus for manufacturing a separator for a polymer electrolyte fuel cell of Fig. 2, and shows a state in which the wave generator is rotated 360 degrees in the clockwise direction.

Fig. 7 is a view showing the load detector output from the start of molding to the molding region and the non-molding region in the embodiment of the present invention, and the operation of the cylinder for loosening removal, the cylinder for loosening removal during non-molding, and the cylinder for pushing up the cylinder. The control flow of the relationship between the state and the gap between the rollers.

10. . . shell

11. . . Main bearing axle box

12. . . Main bearing

13. . . roller

13a. . . Roller body

13b. . . neck

13c. . . Roller shaft

14. . . Metal mold

14a. . . Concave

14b. . . Convex

17. . . Push up cylinder

17a. . . Motion signal

18. . . Often loosening the cylinder

18a. . . Motion signal

20. . . Auxiliary bearing

twenty one. . . Loose cylinder for non-forming

21a. . . Motion signal

twenty two. . . Auxiliary bearing cap

twenty three. . . Load detector

23a. . . Molding load

twenty four. . . Controller

25. . . Reducer

26. . . Servo motor

26a. . . axis

27. . . Radio wave generator

28. . . Bearing

29. . . External gear

30. . . Fixed internal gear

Claims (3)

A method for producing a separator for a polymer electrolyte fuel cell, which has a molding region in which a concave portion and a convex portion are formed on a surface in a circumferential direction, and a non-molding region in which a concave portion and a convex portion are not formed, and are arranged in a pair of rollers A method for producing a separator for a polymer electrolyte fuel cell in which a separator formed of a metal thin plate is pressed and a separator having a flow path corresponding to the concave portion and the convex portion is continuously formed, wherein Before the start of molding, the gap between the drum and the main bearing axle box in the vertical direction and the horizontal direction is removed in a state in which the cylinder is removed from the cylinder by the operation of removing the cylinder from time to time, and the gap between the rollers is previously set to a specific value. Further, the operation between the cylinder and the main bearing is removed by the operation of removing the cylinder during the non-molding, and in this state, the cylinder is extended and the gap between the rollers is set to a value. When the molding load is generated between the rollers, it is judged that the molding region is entered, and the set pressure of the cylinder for removing the loosening during the non-molding is set to 0. The molding of the material to be molded is judged to enter the non-molding region at the time when the molding load becomes zero, and the shrinking cylinder is shrunk so that the gap between the rollers is wider than the set value, and is loosened during non-forming. The looseness between the drum and the main bearing is removed by the action of the cylinder tube, and the cylinder is again extended to make the gap between the rollers set to a set value. When the molding load is generated, it is judged that the molding area is entered, and the non- The setting pressure of the cylinder for removing looseness during molding is set to 0, and the molding of the material to be molded is performed. Hereinafter, loosening between the casing of the drum and the main bearing axle box is performed, and the drum of the non-molding region is repeatedly performed. The loosening between the main bearings and the molding of the formed material in the above-mentioned molding area. A manufacturing apparatus for a separator for a polymer electrolyte fuel cell, which has a molding region in which a concave portion and a convex portion are formed on a surface in a circumferential direction, and a non-molding region in which a concave portion and a convex portion are not formed, and are arranged in a pair of rollers A device for manufacturing a separator for a polymer electrolyte fuel cell in which a separator having a flow path corresponding to the concave portion and the convex portion is formed is continuously produced by introducing a material to be molded which is formed of a thin metal plate, and is characterized in that a push-up cylinder for adjusting a gap between the rollers; and a cylinder for removing the looseness in the vertical direction and the horizontal direction between the casing of the drum and the main bearing axle box; An auxiliary bearing connected to the neck of the drum; a non-molding loosening cylinder for removing looseness between the drum and the main bearing; and a load detector for forming a load load; The molding load detected by the load detector outputs the motion signal to the above-mentioned push-up cylinder and the cylinder for frequent loosening removal and the cylinder for loosening removal during non-forming. , The controller is formed into the profile of the looseness removal often performed between the drum shell and the main bearing axle boxes, loose repeatedly performed between the removal of the non-forming region and the main bearing roller and said molding region. The manufacturing apparatus of the separator for a polymer electrolyte fuel cell according to the second aspect of the invention, wherein the roller shaft portion of each of the rollers passes through a reducer that includes a wave gear mechanism, and directly connects the respective servo motors. At the same time, the direct connection can correspond to the main bearing axle box of the reducer.