A continuous forming die for fuel cell metal bipolar plates

Abstract

The present invention discloses a continuous forming mold based on fuel cell metal bipolar plates, belonging to the technical field of bipolar plate processing, including a main device, a casting device is arranged on the main device, the casting device is used to cast and shape the bipolar plate, a moving device is arranged on the main device, the moving device is used to shovel the cast bipolar plate out of the mold and drive the bipolar plate to move, and a processing device is arranged on the main device, the processing device is used to perform trimming, punching and other processing on the bipolar plate. The lower mold provided by the present invention can be replaced for processing bipolar plates of different styles, and the processing device can be used to trim and punch bipolar plates of different styles, with high applicability; the casting device provided by the present invention can fit the upper mold and the lower mold, and inject raw materials into the mold for casting and molding. After the molding is cooled, the semi-finished product is transferred to the bottom of the processing device through the moving device, with a high degree of automation.

Description

Technical Field

[0001] The invention relates to the technical field of bipolar plate processing, and in particular to a continuous forming die based on a fuel cell metal bipolar plate. Background Art

[0002] Bipolar plate, also known as current collector, is one of the important components of fuel cells. Bipolar plate has the function of separating fuel and oxidant and conducting current. At the same time, it can evenly distribute gas to the reaction layer of the electrode for electrode reaction, and can discharge heat to keep the battery temperature field uniform. Under the premise of maintaining a certain mechanical strength and good gas barrier effect, the thickness of the bipolar plate should be as thin as possible to reduce the resistance to the conduction of current and heat. The use of continuous molds in the process of processing bipolar plates can improve the processing efficiency. The blanking parts are gradually formed in the continuous mold. Continuous forming is a process method with concentrated processes, which can complete multiple processes such as trimming and punching on a pair of molds. The Chinese invention patent application with publication number CN107900210A discloses a continuous mold for parts processing. The prior art integrates multiple processes such as flanging, trimming, and forming through the setting of the mold, but can only process one type of bipolar plate, and cannot perform complex bipolar plate processing, with low applicability and low processing efficiency. Summary of the invention

[0003] In view of the above technical problems, the technical solution adopted by the present invention is: a continuous forming mold based on fuel cell metal bipolar plates, including a main device, the main device including a frame, an outer rail is fixedly installed on the frame, a casting device is arranged on the main device, the casting device includes a descending frame, the descending frame is fixedly installed on the frame, the casting device is used to cast the bipolar plate, the main device is provided with a moving device, the moving device includes a moving frame, the moving frame is slidably installed on the outer rail, the moving device is used to shovel the cast bipolar plate out of the mold and drive the bipolar plate to move, the main device is provided with a processing device, the processing device includes a fixed frame, the fixed frame is fixedly installed on the frame, and the processing device is used to perform processing such as trimming and punching on the bipolar plate.

[0004] Furthermore, the main device includes a mold frame slidably mounted on the frame, a lower mold is fixedly mounted on the mold frame, an outer rail spring is installed outside the outer rail, a guide column is fixedly mounted on the mold frame, the guide column is slidably mounted with the frame, a cross bar is fixedly mounted on the guide column, a guide column spring is arranged between the cross bar and the frame, a lower rack is fixedly mounted on the mold frame, a screw motor is fixedly mounted on the frame, a bidirectional screw is rotatably mounted on the frame, the bidirectional screw is fixedly mounted to the motor shaft of the screw motor, a movable rack is slidably mounted on the frame, and the movable rack is slidably mounted with the bidirectional screw. A threaded transmission is formed, a right bevel rack and a left bevel rack are slidably installed on the moving rack frame, a right vertical spring is arranged between the right bevel rack and the moving rack frame, a left vertical spring is arranged between the left bevel rack and the moving rack frame, a spur bevel gear is fixedly installed on the bidirectional lead screw, a rotating shaft is rotatably installed on the frame body, a side bevel gear and a moving rack are fixedly installed on the rotating shaft, the side bevel gear is meshed with the spur bevel gear, the moving rack is meshed with the lower rack, an outer motor is fixedly installed on the frame body, an outer screw is rotatably installed on the frame body, and the outer screw is fixedly installed on the motor shaft of the outer motor.

[0005] The lower mold is placed on the mold frame and can be replaced for different bipolar plates.

[0006] The rotation of the screw motor drives the bidirectional screw to rotate, thereby driving the movable rack frame to slide along the frame body, thereby driving the right bevel rack and the left bevel rack to slide. The rotation of the bidirectional screw also drives the positive bevel gear to rotate, thereby driving the side bevel gear and the rotating shaft to rotate, thereby driving the movable rack to rotate, thereby driving the lower rack and the mold frame to slide along the frame body, thereby driving the mold frame and the lower mold to reach the bottom of the casting device, the guide column spring is compressed, and when the mold frame reaches the bottom of the casting device, the movable rack is just disengaged from the lower rack, and the continued rotation of the movable rack will not drive the lower rack and the mold frame to slide.

[0007] Further, the casting device includes a right wheel rotatably mounted on the descending frame, a right bevel gear fixedly mounted on the right wheel, a right shaft rotatably mounted on the descending frame, a right upper wheel and a right inner gear fixedly mounted on the right shaft, a right belt wrapped around the right upper wheel and the right wheel, a fixed frame fixedly mounted on the descending frame, an outer cylinder slidably mounted on the fixed frame, an upper mold fixedly mounted on the outer cylinder, a telescopic spring slidably mounted on the outer cylinder, an upper frame fixedly mounted on the telescopic spring, an inner column arranged between the upper frame and the outer cylinder, a feed hopper fixedly mounted on the upper frame, a right rack and a left inner rack fixedly mounted on the feed hopper, the right rack meshing with the right inner gear, a left wheel rotatably mounted on the descending frame, a left bevel gear fixedly mounted on the left wheel, a left shaft rotatably mounted on the descending frame, a left upper wheel and a left inner gear fixedly mounted on the left shaft, a left belt wrapped around the left upper wheel and the left wheel, and the left inner gear meshing with the left inner rack.

[0008] Furthermore, the tooth directions of the right bevel gear and the left bevel gear are opposite.

[0009] When the screw motor rotates to drive the bidirectional screw to rotate, and drives the moving rack to move toward the fixed frame, the right bevel rack will not drive the right bevel gear to rotate, and the right bevel gear will push the right bevel rack downward, the right vertical spring is compressed, and the left bevel rack will drive the left bevel gear to rotate counterclockwise, thereby driving the left bevel gear to rotate counterclockwise, thereby driving the left upper wheel to rotate counterclockwise through the left belt, thereby driving the left shaft and the left inner gear to rotate counterclockwise, thereby driving the left inner rack to rise. Since the left inner rack is at the highest point in the initial state, the left inner gear will no longer continue to drive the left inner rack to rise. At this time, the rotation of the bidirectional screw will only drive the mold frame and the lower mold to reach the bottom of the casting device; since the bidirectional screw is provided with a bidirectional thread, when the moving rack frame moves to the farthest point on the screw motor side, the continued rotation of the screw motor will drive the moving rack frame to start sliding in the direction of the rotating shaft. At this time, since the lower rack has moved to the farthest position, the positive bevel gear The continued rotation of the wheel and the moving rack will not drive the lower rack to continue moving forward, and the moving rack frame slides in the direction of the rotating shaft, and the right bevel rack drives the right bevel gear to rotate clockwise, thereby driving the right upper wheel and the right shaft to rotate clockwise through the right belt, thereby driving the right inner gear to rotate clockwise, thereby driving the right rack and upper frame to descend, thereby driving the feed hopper to descend, and driving the outer cylinder and the upper mold to descend along the fixed frame through the inner column. The left bevel rack will not drive the left bevel gear to rotate, and the left bevel gear will press the left bevel rack down, and the left vertical spring will be compressed. When the upper mold and the lower mold are fitted together, the right rack continues to descend, which will drive the telescopic spring to slide in the outer cylinder, the inner column is compressed, and finally the feed hopper is inserted into the fixed frame, and the raw material is cast between the lower mold and the upper mold through the feed hopper for casting. After the molding is completed, the two-way screw continues to rotate to drive the moving rack frame to rotate, driving the feed hopper and the upper mold to rise back to the initial position, and the cast bipolar plate remains on the lower mold.

[0010] Furthermore, the moving device includes a slide plate slidably mounted on a moving frame, the moving frame and the external screw form a threaded transmission, a scooping motor is fixedly mounted on the moving frame, a motor gear is fixedly mounted on the motor shaft of the scooping motor, a moving gear is rotatably mounted on the moving frame, and a scooping mechanism is provided on the moving frame.

[0011] Furthermore, the shoveling mechanism includes an upper rack frame slidably mounted on the mobile frame, a rack frame spring is arranged between the upper rack frame and the mobile frame, the upper rack frame is meshed with the mobile gear, a two-way gear rod is slidably mounted on the mobile frame, the two-way gear rod is meshed with the motor gear, the two-way gear rod is meshed with the mobile gear, a vertical guide column is slidably mounted on the two-way gear rod, a shovel frame is fixedly mounted on the vertical guide column, a sliding column is fixedly mounted on the shovel frame, the sliding column and the slide plate are slidably mounted, a sliding column spring is arranged between the shovel frame and the slide plate, a lower connecting rod is fixedly mounted on the shovel frame, a rotating rod is rotatably mounted on the lower connecting rod, and the rotating rod and the two-way gear rod are rotatably mounted.

[0012] The rotation of the outer motor drives the outer screw rod to rotate, thereby driving the mobile frame to slide along the outer rail, thereby driving the shovel frame to move forward, and the shovel frame is inserted between the bipolar plate and the guide column. The rotation of the shovel motor drives the motor gear to rotate, thereby driving the two-way gear rod to slide along the mobile frame, thereby driving the shovel frame and the slide plate to slide along the mobile frame. At the same time, the sliding of the two-way gear rod will drive the mobile gear to rotate, thereby driving the upper rack frame to slide, and the rack frame spring is compressed, thereby driving the rotating rod to rotate, thereby driving the lower connecting rod and the shovel frame to rise along the vertical guide column, and the sliding column spring is compressed, thereby realizing the simultaneous advancement and ascent of the shovel frame, thereby shoveling the bipolar plate out of the guide column through the shovel frame, and lifting the bipolar plate to a certain height, and then the mobile frame continues to move forward, driving the bipolar plate to reach above the support block, and the shovel motor reverses, driving the shovel frame to descend, placing the bipolar plate on the support block, and performing edge trimming on the bipolar plate through the processing device.

[0013] Furthermore, the processing device includes an upper plate fixedly mounted on the fixed frame, a supporting block is fixedly mounted on the upper plate, a vertical rod is fixedly mounted on the fixed frame, a walking frame is slidably mounted on the outer rail, an outer rail spring is arranged between the walking frame and the frame body, an active frame is fixedly mounted on the walking frame, a front and rear motor is fixedly mounted on the active frame, a front and rear screw rods are rotatably mounted on the active frame, the front and rear screw rods are fixedly mounted on the motor shafts of the front and rear motors, a movable frame is slidably mounted on the active frame, the movable frame and the front and rear screw rods form a threaded transmission, a traverse motor is fixedly mounted on the movable frame, left and right screw rods are rotatably mounted on the movable frame, the left and right screw rods are fixedly mounted on the motor shaft of the traverse motor, a sliding block is slidably mounted on the movable frame, the sliding block and the left and right screw rods form a threaded transmission, a switching block is rotatably mounted on the sliding block, a switching bevel gear is fixedly mounted on the switching block, a rotating frame is rotatably mounted on the sliding block, a switching disk is fixedly mounted on the rotating frame, the switching block cooperates with the switching disk, a punching end and a laser end are fixedly mounted on the rotating frame, and a switching mechanism is arranged on the vertical rod.

[0014] Furthermore, the switching mechanism includes an outer rotating rod rotatably mounted on the vertical pole, an inner rotating rod rotatably mounted on the outer rotating rod, a rotating bevel gear fixedly mounted on the inner rotating rod, a small sliding block rotatably mounted on the inner rotating rod, the small sliding block and the movable frame are slidably mounted, and a small spring is arranged between the small sliding block and the movable frame.

[0015] When performing trimming processing, the traverse motor rotates to drive the left and right lead screws to rotate, thereby driving the sliding block to slide along the movable frame. At the same time, the front and rear motors rotate to drive the front and rear lead screws to rotate, thereby driving the movable frame to slide along the active frame, thereby adjusting the front, rear, left and right positions of the laser end, and performing trimming processing on the bipolar plate through the laser end.

[0016] When punching operation is required, after the movable frame reaches the top of the support block, the lower bipolar plate is not put down first. The movable frame continues to move forward, pushing the walking frame forward together, the outer rail spring is compressed, driving the outer rotating rod and the inner rotating rod to rotate, and making the small slider slide along the movable frame, the small spring is stretched, and the rotating bevel gear and the switching bevel gear begin to mesh. As the movable frame continues to move forward, the rotation of the inner rotating rod drives the rotating bevel gear to rotate, thereby driving the switching bevel gear and the switching block to rotate, thereby turning the switching disk to rotate, thereby driving the rotating frame to rotate ninety degrees, so that the punching end reaches the bottom, at this time, the rotation of the traverse motor can drive the sliding block to slide along the movable frame, so that the switching bevel gear and the rotating bevel gear are disengaged, and then the movable frame retreats, and the bipolar plate is placed on the support block, and the bipolar plate is punched with the punching end in a manner similar to the trimming process.

[0017] Compared with the prior art, the present invention has the following advantages: (1) the lower mold provided in the present invention can be replaced for processing bipolar plates of different styles, and the processing device can be used to trim and punch bipolar plates of different styles, and has high applicability; (2) the casting device provided in the present invention can fit the upper mold and the lower mold, and inject raw materials into the mold for casting and molding. After molding and cooling, the semi-finished product is transferred to the bottom of the processing device by the moving device, and has a high degree of automation; (3) the processing device provided in the present invention can switch the processing end by moving the moving mode, and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention (ready state).

[0019] Figure 2 It is a schematic diagram of the overall structure of the present invention (casting state).

[0020] Figure 3 It is a schematic diagram of the overall structure of the present invention (processing state).

[0021] Figure 4 It is a schematic diagram of the overall structure of the present invention (terminal switching state).

[0022] Figure 5 The main device structure of the present invention is shown in FIG. Figure 1 .

[0023] Figure 6 The main device structure of the present invention is shown in FIG. Figure 2 .

[0024] Figure 7 The main device structure of the present invention is shown in FIG. Figure 3 .

[0025] Figure 8 The main device structure of the present invention is shown in FIG. Figure 4 .

[0026] Fig. 9 It is a schematic diagram of the structure of the pouring device of the present invention.

[0027] Fig.10 The structure of the mobile device of the present invention is shown in FIG. Figure 1 .

[0028] Fig.11 The structure of the mobile device of the present invention is shown in FIG. Figure 2 .

[0029] Fig.12 The structure of the processing device of the present invention is shown in FIG. Figure 1 .

[0030] Fig.13 The structure of the processing device of the present invention is shown in FIG. Figure 2 .

[0031] Figure numbers: 101-frame; 102-outer rail; 103-outer rail spring; 104-lower die; 105-die frame; 106-guide column; 107-guide column spring; 108-cross bar; 109-lower rack; 110-moving rack; 111-rotating shaft; 112-side bevel gear; 113-positive bevel gear; 114-bidirectional screw; 115-screw motor; 116-movable rack frame; 117-right bevel rack; 118-right vertical spring; 119-left bevel rack; 120-left Vertical spring; 121-outer motor; 122-outer screw; 201-down frame; 202-right wheel; 203-right bevel gear; 204-right belt; 205-right upper wheel; 206-right shaft; 207-right inner gear; 208-right rack; 209-upper frame; 210-inner column; 211-outer cylinder; 212-telescopic spring; 213-feed hopper; 214-upper die; 215-left bevel gear; 216-left wheel; 217-left belt; 218-left upper wheel; 219-left shaft ;220-left inner gear;221-left inner rack;222-fixed frame;301-movable frame;302-shovel frame;303-sliding column;304-sliding column spring;305-lower connecting rod;306-vertical guide column;307-rotating rod;308-upper rack;309-rack frame spring;310-movable gear;311-bidirectional gear rod;312-motor gear;313-shovel motor;314-slide plate;401-fixed frame;402-upper plate;403-support block; 404-vertical pole; 405-outer rotating rod; 406-inner rotating rod; 407-sliding block; 408-rotating bevel gear; 409-small slider; 410-small spring; 411-front and rear motors; 412-active frame; 413-traveling frame; 414-front and rear screw rods; 415-movable frame; 416-left and right screw rods; 417-punching end; 418-laser end; 419-switching disk; 420-switching block; 421-switching bevel gear; 422-rotating frame; 423-traverse motor. DETAILED DESCRIPTION

[0032] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0033] Example: Reference Figure 1-Figure 13A continuous forming mold for fuel cell metal bipolar plates includes a main device, the main device includes a frame 101, an outer rail 102 is fixedly installed on the frame 101, a casting device is arranged on the main device, the casting device includes a descending frame 201, the descending frame 201 is fixedly installed on the frame 101, the casting device is used to cast the bipolar plate, the main device is provided with a moving device, the moving device includes a moving frame 301, the moving frame 301 is slidably installed on the outer rail 102, the moving device is used to shovel the casted bipolar plate out of the mold and drive the bipolar plate to move, the main device is provided with a processing device, the processing device includes a fixed frame 401, the fixed frame 401 is fixedly installed on the frame 101, and the processing device is used to perform processing such as trimming and punching on the bipolar plate.

[0034] like Figure 1-Figure 8 As shown, the main device includes a mold frame 105 slidably mounted on the frame 101, a lower mold 104 is fixedly mounted on the mold frame 105, an outer rail spring 103 is installed outside the outer rail 102, a guide column 106 is fixedly mounted on the mold frame 105, the guide column 106 is slidably mounted with the frame 101, a cross bar 108 is fixedly mounted on the guide column 106, a guide column spring 107 is arranged between the cross bar 108 and the frame 101, a lower rack 109 is fixedly mounted on the mold frame 105, a screw motor 115 is fixedly mounted on the frame 101, a bidirectional screw 114 is rotatably mounted on the frame 101, the bidirectional screw 114 is fixedly mounted to the motor shaft of the screw motor 115, a movable rack frame 116 is slidably mounted on the frame 101, and the movable rack frame 116 and the bidirectional screw 114 are shaped A threaded transmission is formed, a right bevel rack 117 and a left bevel rack 119 are slidably installed on the movable rack frame 116, a right vertical spring 118 is arranged between the right bevel rack 117 and the movable rack frame 116, a left vertical spring 120 is arranged between the left bevel rack 119 and the movable rack frame 116, a positive bevel gear 113 is fixedly installed on the bidirectional lead screw 114, a rotating shaft 111 is rotatably installed on the frame body 101, a side bevel gear 112 and a movable rack 110 are fixedly installed on the rotating shaft 111, the side bevel gear 112 is meshed with the positive bevel gear 113, the movable rack 110 is meshed with the lower rack 109, an outer motor 121 is fixedly installed on the frame body 101, an outer screw 122 is rotatably installed on the frame body 101, and the outer screw 122 is fixedly installed with the motor shaft of the outer motor 121.

[0035] The lower mold 104 is placed on the mold frame 105 , and the lower mold 104 can be replaced for different bipolar plates.

[0036] The rotation of the screw motor 115 drives the bidirectional screw 114 to rotate, thereby driving the movable rack 116 to slide along the frame 101, thereby driving the right bevel rack 117 and the left bevel rack 119 to slide. The rotation of the bidirectional screw 114 simultaneously drives the spur bevel gear 113 to rotate, thereby driving the side bevel gear 112 and the rotating shaft 111 to rotate, thereby driving the movable rack 110 to rotate, thereby driving the lower rack 109 and the mold frame 105 to slide along the frame 101, thereby driving the mold frame 105 and the lower mold 104 to reach the bottom of the casting device, the guide column spring 107 is compressed, and when the mold frame 105 reaches the bottom of the casting device, the movable rack 110 is just disengaged from the lower rack 109, and the continued rotation of the movable rack 110 will not drive the lower rack 109 and the mold frame 105 to slide.

[0037] like Fig. 9 As shown, the casting device includes a right wheel 202 rotatably mounted on a descending frame 201, a right bevel gear 203 is fixedly mounted on the right wheel 202, a right shaft 206 is rotatably mounted on the descending frame 201, a right upper wheel 205 and a right inner gear 207 are fixedly mounted on the right shaft 206, a right belt 204 is wound around the right upper wheel 205 and the right wheel 202, a fixed frame 222 is fixedly mounted on the descending frame 201, an outer cylinder 211 is slidably mounted on the fixed frame 222, an upper mold 214 is fixedly mounted on the outer cylinder 211, a telescopic spring 212 is slidably mounted on the outer cylinder 211, and an upper frame 209 is fixedly mounted on the telescopic spring 212. An inner column 210 is arranged between the upper frame 209 and the outer cylinder 211, a feed hopper 213 is fixedly mounted on the upper frame 209, a right rack 208 and a left inner rack 221 are fixedly mounted on the feed hopper 213, the right rack 208 is meshed with the right inner gear 207, a left wheel 216 is rotatably mounted on the descending frame 201, a left bevel gear 215 is fixedly mounted on the left wheel 216, a left shaft 219 is rotatably mounted on the descending frame 201, a left upper wheel 218 and a left inner gear 220 are fixedly mounted on the left shaft 219, a left belt 217 is wrapped around the left upper wheel 218 and the left wheel 216, and the left inner gear 220 is meshed with the left inner rack 221.

[0038] like Fig. 9 As shown, the tooth directions of the right bevel gear 203 and the left bevel gear 215 are opposite.

[0039] When the screw motor 115 rotates to drive the bidirectional screw 114 to rotate, and drives the movable rack 116 to move toward the direction of the fixed frame 401, the right bevel rack 117 will not drive the right bevel gear 203 to rotate, and the right bevel gear 203 will push the right bevel rack 117 downward, the right vertical spring 118 is compressed, and the left bevel rack 119 will drive the left bevel gear 215 to rotate counterclockwise, thereby driving the left bevel gear 215 to rotate counterclockwise, thereby driving the left upper wheel 218 to rotate counterclockwise through the left belt 217, thereby driving the left shaft 219 and the left inner gear 220 to rotate counterclockwise, thereby driving the left inner rack 221 to rise. , since the left inner rack 221 is at the highest point in the initial state, the left inner gear 220 will no longer continue to drive the left inner rack 221 to rise. At this time, the rotation of the bidirectional screw rod 114 will only drive the mold frame 105 and the lower mold 104 to reach the bottom of the casting device; since the bidirectional screw rod 114 is provided with a bidirectional thread, when the movable rack frame 116 moves to the farthest point on the screw motor 115 side, the screw motor 115 continues to rotate and drives the movable rack frame 116 to start sliding toward the direction of the rotating shaft 111. At this time, since the lower rack 109 has moved to the farthest position, the positive bevel gear 113 and the movable rack 110 continue to move. The rotation will not drive the lower rack 109 to continue to move forward, the movable rack frame 116 slides toward the direction of the rotating shaft 111, and the right bevel rack 117 drives the right bevel gear 203 to rotate clockwise, thereby driving the right upper wheel 205 and the right shaft 206 to rotate clockwise through the right belt 204, thereby driving the right inner gear 207 to rotate clockwise, thereby driving the right rack 208 and the upper frame 209 to descend, thereby driving the feed hopper 213 to descend, and driving the outer cylinder 211 and the upper mold 214 to descend along the fixed frame 222 through the inner column 210. The left bevel rack 119 will not drive the left bevel gear 215 to rotate, and the left bevel gear 215 will The left conical rack 119 is pressed down, and the left vertical spring 120 is compressed. When the upper mold 214 is fitted with the lower mold 104, the right rack 208 continues to descend, which will drive the telescopic spring 212 to slide in the outer cylinder 211, and the inner column 210 is compressed. Finally, the feed hopper 213 is inserted into the fixed frame 222, and the raw material is cast into the space between the lower mold 104 and the upper mold 214 through the feed hopper 213. After the molding is completed, the bidirectional screw 114 continues to rotate to drive the movable rack 116 to rotate, and drives the feed hopper 213 and the upper mold 214 to rise back to the initial position, and the cast bipolar plate remains on the lower mold 104.

[0040] like Fig.10 , Fig.11 As shown, the moving device includes a slide plate 314 slidably mounted on the moving frame 301, the moving frame 301 and the external screw rod 122 form a threaded transmission, a scooping motor 313 is fixedly mounted on the moving frame 301, a motor gear 312 is fixedly mounted on the motor shaft of the scooping motor 313, a moving gear 310 is rotatably mounted on the moving frame 301, and a scooping mechanism is provided on the moving frame 301.

[0041] like Fig.10 , Fig.11 As shown, the shoveling mechanism includes an upper rack frame 308 slidably mounted on the mobile frame 301, a rack frame spring 309 is arranged between the upper rack frame 308 and the mobile frame 301, the upper rack frame 308 is meshed with the mobile gear 310, a two-way gear rod 311 is slidably mounted on the mobile frame 301, the two-way gear rod 311 is meshed with the motor gear 312, the two-way gear rod 311 is meshed with the mobile gear 310, a vertical guide column 306 is slidably mounted on the two-way gear rod 311, a shovel frame 302 is fixedly mounted on the vertical guide column 306, a sliding column 303 is fixedly mounted on the shovel frame 302, the sliding column 303 and the slide plate 314 are slidably mounted, a sliding column spring 304 is arranged between the shovel frame 302 and the slide plate 314, a lower connecting rod 305 is fixedly mounted on the shovel frame 302, a rotating rod 307 is rotatably mounted on the lower connecting rod 305, and the rotating rod 307 and the two-way gear rod 311 are rotatably mounted.

[0042] The outer motor 121 rotates to drive the outer screw rod 122 to rotate, thereby driving the moving frame 301 to slide along the outer rail 102, thereby driving the shovel frame 302 to move forward, and the shovel frame 302 is inserted between the bipolar plate and the guide column 106. The shovel motor 313 rotates to drive the motor gear 312 to rotate, thereby driving the bidirectional gear rod 311 to slide along the moving frame 301, thereby driving the shovel frame 302 and the slide plate 314 to slide along the moving frame 301. At the same time, the sliding of the bidirectional gear rod 311 will drive the moving gear 310 to rotate, thereby driving the upper rack frame 308 to slide, and the rack frame spring 309 The shovel frame 302 is compressed, thereby driving the rotating rod 307 to rotate, thereby driving the lower connecting rod 305 and the shovel frame 302 to rise along the vertical guide column 306, and the sliding column spring 304 is compressed, so that the shovel frame 302 can move forward and rise simultaneously, so that the bipolar plate is shoveled out of the guide column 106 by the shovel frame 302, and the bipolar plate is lifted to a certain height, and then the moving frame 301 continues to move forward, driving the bipolar plate to reach above the support block 403, and the scooping motor 313 is reversed, driving the shovel frame 302 to descend, and the bipolar plate is placed on the support block 403, and the bipolar plate is trimmed by the processing device.

[0043] like Fig.12 , Fig.13As shown, the processing device includes an upper plate 402 fixedly mounted on a fixed frame 401, a support block 403 fixedly mounted on the upper plate 402, a vertical rod 404 fixedly mounted on the fixed frame 401, a walking frame 413 slidably mounted on the outer rail 102, an outer rail spring 103 is arranged between the walking frame 413 and the frame body 101, an active frame 412 fixedly mounted on the walking frame 413, a front and rear motor 411 fixedly mounted on the active frame 412, a front and rear screw rod 414 rotatably mounted on the active frame 412, the front and rear screw rod 414 and the motor shaft of the front and rear motor 411 are fixedly mounted, a movable frame 415 is slidably mounted on the active frame 412, the movable frame 415 and the front and rear screw rod 414 form a threaded transmission, and the movable frame 4 15 is fixedly mounted with a traverse motor 423, a left and right lead screws 416 are rotatably mounted on the movable frame 415, the left and right lead screws 416 are fixedly mounted with the motor shaft of the traverse motor 423, a sliding block 407 is slidably mounted on the movable frame 415, the sliding block 407 and the left and right lead screws 416 form a threaded transmission, a switching block 420 is rotatably mounted on the sliding block 407, a switching bevel gear 421 is fixedly mounted on the switching block 420, a rotating frame 422 is rotatably mounted on the sliding block 407, a switching disk 419 is fixedly mounted on the rotating frame 422, the switching block 420 cooperates with the switching disk 419, a punching end 417 and a laser end 418 are fixedly mounted on the rotating frame 422, and a switching mechanism is provided on the vertical pole 404.

[0044] like Fig.12 , Fig.13 As shown, the switching mechanism includes an outer rotating rod 405 rotatably mounted on the vertical rod 404, an inner rotating rod 406 rotatably mounted on the outer rotating rod 405, a rotating bevel gear 408 is fixedly mounted on the inner rotating rod 406, a small slider 409 is rotatably mounted on the inner rotating rod 406, the small slider 409 is slidably mounted with a movable frame 415, and a small spring 410 is arranged between the small slider 409 and the movable frame 415.

[0045] When performing trimming processing, the traverse motor 423 rotates to drive the left and right screw rods 416 to rotate, thereby driving the sliding block 407 to slide along the movable frame 415. At the same time, the front and rear motors 411 rotate to drive the front and rear screw rods 414 to rotate, thereby driving the movable frame 415 to slide along the active frame 412, thereby adjusting the front, rear, left and right positions of the laser end 418, and performing trimming processing on the bipolar plate through the laser end 418.

[0046] When the punching operation is required, after the moving frame 301 reaches the top of the support block 403, the lower bipolar plate is not put down first. The moving frame 301 continues to move forward, pushing the walking frame 413 to move forward together, and the outer rail spring 103 is compressed, driving the outer rotating rod 405 and the inner rotating rod 406 to rotate, and making the small slider 409 slide along the movable frame 415, and the small spring 410 is stretched, and the rotating bevel gear 408 and the switching bevel gear 421 begin to mesh. As the moving frame 301 continues to move forward, the inner rotating rod 406 rotates to drive the rotating bevel gear 408 to rotate , thereby driving the switching bevel gear 421 and the switching block 420 to rotate, thereby driving the switching disk 419 to rotate, thereby driving the rotating frame 422 to rotate ninety degrees, so that the punching end 417 reaches the bottom, and at this time the traverse motor 423 rotates to drive the sliding block 407 to slide along the movable frame 415, so that the switching bevel gear 421 is disengaged from the rotating bevel gear 408, and then the movable frame 301 retreats, and the bipolar plate is placed on the supporting block 403, and the bipolar plate is punched with the punching end 417 in a manner similar to the trimming process.

[0047] The working principle of a continuous forming mold for fuel cell metal bipolar plates disclosed in the present invention is as follows: a lower mold 104 is placed on a mold frame 105, and the lower mold 104 can be replaced for different bipolar plates. The rotation of the screw motor 115 drives the bidirectional screw 114 to rotate, thereby driving the movable rack 116 to slide along the frame 101, thereby driving the right bevel rack 117 and the left bevel rack 119 to slide. The rotation of the bidirectional screw 114 simultaneously drives the spur bevel gear 113 to rotate, thereby driving the side bevel gear 112 and the rotating shaft 111 to rotate, thereby driving the movable rack 110 to rotate, thereby driving the lower rack 109 and the mold frame 105 to slide along the frame 101, thereby driving the mold frame 105 and the lower mold 104 to reach the bottom of the casting device, the guide column spring 107 is compressed, and when the mold frame 105 reaches the bottom of the casting device, the movable rack 110 is just disengaged from the lower rack 109, and the continued rotation of the movable rack 110 will not drive the lower rack 109 and the mold frame 105 to slide.When the screw motor 115 rotates to drive the bidirectional screw 114 to rotate, and drives the movable rack 116 to move toward the direction of the fixed frame 401, the right bevel rack 117 will not drive the right bevel gear 203 to rotate, and the right bevel gear 203 will push the right bevel rack 117 downward, the right vertical spring 118 is compressed, and the left bevel rack 119 will drive the left bevel gear 215 to rotate counterclockwise, thereby driving the left bevel gear 215 to rotate counterclockwise, thereby driving the left upper wheel 218 to rotate counterclockwise through the left belt 217, thereby driving the left shaft 219 and the left inner gear 220 to rotate counterclockwise, thereby driving the left inner rack 221 to rise. , since the left inner rack 221 is at the highest point in the initial state, the left inner gear 220 will no longer continue to drive the left inner rack 221 to rise. At this time, the rotation of the bidirectional screw rod 114 will only drive the mold frame 105 and the lower mold 104 to reach the bottom of the casting device; since the bidirectional screw rod 114 is provided with a bidirectional thread, when the movable rack frame 116 moves to the farthest point on the screw motor 115 side, the screw motor 115 continues to rotate and drives the movable rack frame 116 to start sliding toward the direction of the rotating shaft 111. At this time, since the lower rack 109 has moved to the farthest position, the positive bevel gear 113 and the movable rack 110 continue to move. The rotation will not drive the lower rack 109 to continue to move forward, the movable rack frame 116 slides toward the direction of the rotating shaft 111, and the right bevel rack 117 drives the right bevel gear 203 to rotate clockwise, thereby driving the right upper wheel 205 and the right shaft 206 to rotate clockwise through the right belt 204, thereby driving the right inner gear 207 to rotate clockwise, thereby driving the right rack 208 and the upper frame 209 to descend, thereby driving the feed hopper 213 to descend, and driving the outer cylinder 211 and the upper mold 214 to descend along the fixed frame 222 through the inner column 210. The left bevel rack 119 will not drive the left bevel gear 215 to rotate, and the left bevel gear 215 will The left conical rack 119 is pressed down, and the left vertical spring 120 is compressed. When the upper mold 214 is fitted with the lower mold 104, the right rack 208 continues to descend, which will drive the telescopic spring 212 to slide in the outer cylinder 211, and the inner column 210 is compressed. Finally, the feed hopper 213 is inserted into the fixed frame 222, and the raw material is cast into the space between the lower mold 104 and the upper mold 214 through the feed hopper 213. After the molding is completed, the bidirectional screw 114 continues to rotate to drive the movable rack 116 to rotate, and drives the feed hopper 213 and the upper mold 214 to rise back to the initial position, and the cast bipolar plate remains on the lower mold 104.The rotation of the outer motor 121 drives the outer screw rod 122 to rotate, thereby driving the moving frame 301 to slide along the outer rail 102, thereby driving the shovel frame 302 to move forward, and the shovel frame 302 is inserted between the bipolar plate and the guide column 106. The shoveling motor 313 rotates to drive the motor gear 312 to rotate, thereby driving the two-way gear rod 311 to slide along the moving frame 301, thereby driving the shovel frame 302 and the slide plate 314 to slide along the moving frame 301. At the same time, the sliding of the two-way gear rod 311 will drive the moving gear 310 to rotate, thereby driving the upper rack frame 308 to slide, and the rack frame spring 309 is compressed, thereby driving the rotating rod 307 to rotate, thereby driving the lower connecting rod 305 and the shovel frame 302 to rise along the vertical guide column 306, and the sliding column spring 304 is compressed, so The shovel frame 302 is moved forward and raised simultaneously, so that the bipolar plate is shoveled out of the guide column 106 by the shovel frame 302 and the bipolar plate is lifted to a certain height, and then the movable frame 301 continues to move forward, driving the bipolar plate to the top of the support block 403, and the shoveling motor 313 is reversed to drive the shovel frame 302 to descend, and the bipolar plate is placed on the support block 403. When trimming is performed, the traverse motor 423 rotates to drive the left and right screw rods 416 to rotate, thereby driving the sliding block 407 to slide along the movable frame 415, and at the same time, the front and rear motors 411 rotate to drive the front and rear screw rods 414 to rotate, thereby driving the movable frame 415 to slide along the active frame 412, thereby adjusting the front, rear, left and right positions of the laser end 418, and trimming is performed on the bipolar plate by the laser end 418. When the punching operation is required, after the moving frame 301 reaches the top of the support block 403, the lower bipolar plate is not put down first. The moving frame 301 continues to move forward, pushing the walking frame 413 to move forward together, and the outer rail spring 103 is compressed, driving the outer rotating rod 405 and the inner rotating rod 406 to rotate, and making the small slider 409 slide along the movable frame 415, and the small spring 410 is stretched, and the rotating bevel gear 408 and the switching bevel gear 421 begin to mesh. As the moving frame 301 continues to move forward, the inner rotating rod 406 rotates to drive the rotating bevel gear 408 to rotate , thereby driving the switching bevel gear 421 and the switching block 420 to rotate, thereby driving the switching disk 419 to rotate, thereby driving the rotating frame 422 to rotate ninety degrees, so that the punching end 417 reaches the bottom, and at this time the traverse motor 423 rotates to drive the sliding block 407 to slide along the movable frame 415, so that the switching bevel gear 421 is disengaged from the rotating bevel gear 408, and then the movable frame 301 retreats, and the bipolar plate is placed on the supporting block 403, and the bipolar plate is punched with the punching end 417 in a manner similar to the trimming process.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A continuous forming die for metal bipolar plates of fuel cells, comprising a main device, characterized in that: The main device comprises a frame (101), an outer rail (102) is fixedly mounted on the frame (101), a casting device is arranged on the main device, the casting device comprises a descending frame (201), the descending frame (201) is fixedly mounted on the frame (101), the casting device is used to cast the bipolar plate, the main device is provided with a moving device, the moving device comprises a moving frame (301), the moving frame (301) is slidably mounted on the outer rail (102), the moving device is used to shovel the casted bipolar plate out of the mold and drive the bipolar plate to move, the main device is provided with a processing device, the processing device comprises a fixed frame (401), the fixed frame (401) is fixedly mounted on the frame (101), and the processing device is used to perform edge trimming and hole punching processing on the bipolar plate; The main device comprises a mold frame (105) slidably mounted on a frame (101), a lower mold (104) fixedly mounted on the mold frame (105), an outer rail spring (103) mounted outside the outer rail (102), a guide column (106) fixedly mounted on the mold frame (105), the guide column (106) slidably mounted on the frame (101), a cross bar (108) fixedly mounted on the guide column (106), and a cross bar (108) between the cross bar (108) and the frame (101) A guide column spring (107) is arranged between the mold frame (105), a lower rack (109) is fixedly mounted on the mold frame (105), a screw motor (115) is fixedly mounted on the frame body (101), a bidirectional screw (114) is rotatably mounted on the frame body (101), the bidirectional screw (114) and the motor shaft of the screw motor (115) are fixedly mounted, a movable rack frame (116) is slidably mounted on the frame body (101), and the movable rack frame (116) and the bidirectional screw (114) are rotatably mounted on the frame body (101). A screw transmission is formed, a right bevel rack (117) and a left bevel rack (119) are slidably mounted on the movable rack frame (116), a right vertical spring (118) is arranged between the right bevel rack (117) and the movable rack frame (116), a left vertical spring (120) is arranged between the left bevel rack (119) and the movable rack frame (116), a positive bevel gear (113) is fixedly mounted on the bidirectional lead screw (114), and a rotating shaft (110) is rotatably mounted on the frame body (101). 11), a side bevel gear (112) and a movable rack (110) are fixedly mounted on the rotating shaft (111), the side bevel gear (112) is meshed with the positive bevel gear (113), the movable rack (110) is meshed with the lower rack (109), an outer motor (121) is fixedly mounted on the frame (101), an outer screw rod (122) is rotatably mounted on the frame (101), and the outer screw rod (122) is fixedly mounted on the motor shaft of the outer motor (121); The lower mold (104) is placed on the mold frame (105), and the lower mold (104) can be replaced for different bipolar plates.

2. A continuous forming die for metal bipolar plates for fuel cells according to claim 1, characterized in that: The casting device comprises a right wheel (202) rotatably mounted on a descending frame (201), a right bevel gear (203) fixedly mounted on the right wheel (202), a right shaft (206) rotatably mounted on the descending frame (201), a right upper wheel (205) and a right internal gear (207) fixedly mounted on the right shaft (206), a right belt (204) wound around the right upper wheel (205) and the right wheel (202), a fixed frame (222) fixedly mounted on the descending frame (201), an outer cylinder (211) slidably mounted on the fixed frame (222), an upper mold (214) fixedly mounted on the outer cylinder (211), a telescopic spring (212) slidably mounted on the outer cylinder (211), an upper frame (209) fixedly mounted on the telescopic spring (212), and the upper frame An inner column (210) is arranged between the upper frame (209) and the outer cylinder (211); a feed hopper (213) is fixedly mounted on the upper frame (209); a right rack (208) and a left inner rack (221) are fixedly mounted on the feed hopper (213); the right rack (208) meshes with the right inner gear (207); a left wheel (216) is rotatably mounted on the lower frame (201); a left bevel gear (215) is fixedly mounted on the left wheel (216); a left shaft (219) is rotatably mounted on the lower frame (201); a left upper wheel (218) and a left inner gear (220) are fixedly mounted on the left shaft (219); a left belt (217) is wound around the left upper wheel (218) and the left wheel (216); and the left inner gear (220) meshes with the left inner rack (221).

3. A continuous forming die for metal bipolar plates for fuel cells according to claim 2, characterized in that: The right bevel gear (203) and the left bevel gear (215) have opposite tooth directions.

4. A continuous forming die for fuel cell metal bipolar plates according to claim 1, characterized in that: The moving device comprises a slide plate (314) slidably mounted on a moving frame (301); the moving frame (301) and an external screw rod (122) form a threaded transmission; a scooping motor (313) is fixedly mounted on the moving frame (301); a motor gear (312) is fixedly mounted on the motor shaft of the scooping motor (313); a moving gear (310) is rotatably mounted on the moving frame (301); and a scooping mechanism is provided on the moving frame (301).

5. A continuous forming die for metal bipolar plates for fuel cells according to claim 4, characterized in that: The scooping mechanism comprises an upper rack frame (308) slidably mounted on the moving frame (301), a rack frame spring (309) is arranged between the upper rack frame (308) and the moving frame (301), the upper rack frame (308) is meshed with the moving gear (310), a bidirectional gear rod (311) is slidably mounted on the moving frame (301), the bidirectional gear rod (311) is meshed with the motor gear (312), the bidirectional gear rod (311) is meshed with the moving gear (310), and a gear rod (311) is slidably mounted on the bidirectional gear rod (311). A vertical guide column (306) is provided, a shovel frame (302) is fixedly installed on the vertical guide column (306), a sliding column (303) is fixedly installed on the shovel frame (302), the sliding column (303) and the slide plate (314) are slidably installed, a sliding column spring (304) is provided between the shovel frame (302) and the slide plate (314), a lower connecting rod (305) is fixedly installed on the shovel frame (302), a rotating rod (307) is rotatably installed on the lower connecting rod (305), and the rotating rod (307) and the bidirectional gear rod (311) are rotatably installed.

6. The continuous forming die for fuel cell metal bipolar plates according to claim 1, characterized in that: The processing device comprises an upper plate (402) fixedly mounted on a fixed frame (401), a support block (403) fixedly mounted on the upper plate (402), a vertical rod (404) fixedly mounted on the fixed frame (401), a walking frame (413) slidably mounted on the outer rail (102), an outer rail spring (103) is provided between the walking frame (413) and the frame body (101), an active frame (412) fixedly mounted on the walking frame (413), a front and rear motor (411) fixedly mounted on the active frame (412), front and rear lead screws (414) rotatably mounted on the active frame (412), the front and rear lead screws (414) and the motor shafts of the front and rear motors (411) fixedly mounted, a movable frame (415) slidably mounted on the active frame (412), the movable frame (415) and the front and rear lead screws (414) forming a threaded transmission, and the movable frame (412) 15), a traverse motor (423) is fixedly mounted on the movable frame (415), left and right lead screws (416) are rotatably mounted on the movable frame (415), the left and right lead screws (416) are fixedly mounted on the motor shaft of the traverse motor (423), a sliding block (407) is slidably mounted on the movable frame (415), the sliding block (407) and the left and right lead screws (416) form a threaded transmission, a switching block (420) is rotatably mounted on the sliding block (407), a switching bevel gear (421) is fixedly mounted on the switching block (420), a rotating frame (422) is rotatably mounted on the sliding block (407), a switching disk (419) is fixedly mounted on the rotating frame (422), the switching block (420) cooperates with the switching disk (419), a punching end (417) and a laser end (418) are fixedly mounted on the rotating frame (422), and a switching mechanism is provided on the vertical pole (404).

7. A continuous forming die for metal bipolar plates for fuel cells according to claim 6, characterized in that: The switching mechanism comprises an outer rotating rod (405) rotatably mounted on a vertical rod (404), an inner rotating rod (406) rotatably mounted on the outer rotating rod (405), a rotating bevel gear (408) fixedly mounted on the inner rotating rod (406), a small sliding block (409) rotatably mounted on the inner rotating rod (406), the small sliding block (409) and a movable frame (415) being slidably mounted, and a small spring (410) being arranged between the small sliding block (409) and the movable frame (415).

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