Fine seal processing die for automobile fuel cell

Abstract

The application discloses a fine sealing piece machining die for automobile fuel cells and particularly relates to the machining die field, which comprises a lower die and an upper die, the top end of the lower die is matched with the upper die, the top end of the upper die is provided with first bolt rods at four corners, first springs are sleeved on the first bolt rods, the top end of the four first springs is commonly supported by a pressing plate, the top end of the pressing plate is matched with a hydraulic assembly, the pressing plate is provided with a cutting assembly, the bottom end of the cutting assembly is in plug-in matching with the upper die, a demolding assembly is arranged in the lower die, one end of the demolding assembly is matched with a matching assembly, a rack is arranged on one side of the upper die, the other end of the demolding assembly is matched with the rack, and the bottom end of the upper die is provided with a pressing block. The application has the advantages that the raw material can be prevented from flowing out of the die directly in the process of extrusion forming of the sealing piece, the generation of burrs is reduced, the demolding is facilitated, the formed product is prevented from being strongly adhered in the demolding process and being torn, and the qualified rate of the sealing piece production is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of processing molds, more particularly, the present application relates to a fine sealing piece processing mold for automobile fuel cells. BACKGROUND

[0002] The automobile fuel cell generates electric energy by reacting fuel with oxygen. Common fuels include hydrogen, methanol, and natural gas. The fuel undergoes an oxidation reaction at the anode, producing electrons and ions. The electrons provide power through an external circuit, and the ions are transferred to the cathode through an electrolyte to undergo a reduction reaction with oxygen, forming water vapor. Therefore, the fuel cell needs to be sealed during use to ensure normal operation. Therefore, fine sealing pieces are an essential part of the composition of fuel cells. As the demand for fuel cells increases, the production of internal sealing pieces also increases. Fine sealing pieces require processing molds for production.

[0003] The utility model patent with publication number CN217670621U discloses a mold for battery sealing ring of new energy automobile, including base, the top of base is fixedly connected with first hydraulic cylinder, the top of first hydraulic cylinder is fixedly connected with first telescopic link, the top of first telescopic link is fixedly connected with trimming frame, the bottom of trimming frame is equipped with sleeve hole, the inner wall of sleeve hole is movably connected with support column, one end of support column is fixedly connected with mold shell, the inner bottom wall of mold shell is fixedly connected with inner square, the top of inner square is equipped with lower groove, the inner wall of lower groove is movably connected with clamping block. The mold for battery sealing ring of new energy automobile can replace different types of punching columns with the same type of mold, so that the cost is reduced when different types of holes are needed, and the use requirements of the people are further met, which brings convenience to the work of the people.

[0004] However, the structure is not convenient to remove after the production of the sealing ring is completed because the bottom of the sealing ring is still adhered to the lower mold, which causes tearing during demolding, reduces the production qualification rate of the sealing ring, and the cut-off burrs are easily hung on the trimming frame, which needs to be manually cleaned, thereby increasing the cleaning steps and reducing the overall production efficiency. Therefore, the fine sealing piece processing mold for automobile fuel cells is proposed. SUMMARY

[0005] In order to overcome the above-mentioned defects of the prior art, the present application provides a fine sealing piece processing mold for automobile fuel cells to solve the problems raised in the background art.

[0006] In order to achieve the above object, the present application provides the following technical scheme: the automobile fuel cell fine sealing piece processing mold, including lower die and upper die, the top end of the lower die is matched with the upper die, the top end of the upper die is installed with the first bolt rod in four corners, the first spring is sleeved on each first bolt rod, the top end of the four first springs is commonly supported with the pressing plate, the top end of the pressing plate is matched with the hydraulic assembly, the cutting assembly is installed on the pressing plate, the bottom end of the cutting assembly is inserted with the upper die, the demolding assembly is installed in the lower die, one end of the demolding assembly is matched with the matching assembly, the rack is installed on one side of the upper die, and the other end of the demolding assembly is matched with the rack.

[0007] By placing the raw materials in the forming cavity, the pressing plate is lowered by the operation of the hydraulic assembly, so that the upper die is lowered and is pressed on the lower die, and in the process of continuing to press, each first spring is stressed to make the upper die and the lower die press and cooperate;

[0008] In the process of extruding the raw materials, the excess raw materials overflow from the flow guide cavity to the overflow cavity, so that the raw materials are prevented from being extruded from the connection between the lower die and the upper die;

[0009] Synchronously, in the process of pressing the pressing plate, each second spring is pressed by the pressing plate, so that the top plate is pressed by each second spring, so that the cutter is lowered and is pressed on the demolding plate to cut the burr formed by overflow;

[0010] And in the process of lowering the upper die, the rack on one side is lowered, so that the rack is matched with the tooth rod in the process of lowering the rack, so that the tooth rod is rotated, so that the connected lead screw is rotated in the screw hole, so that the demolding plate moves from the movable cavity to the overflow cavity, and the push block is pushed in the process of moving the demolding plate, the capacity of the overflow cavity is improved, the demolding plate seals the exhaust port at the bottom, and at the same time, each fourth spring is extruded by the push block and is compressed;

[0011] After the sealing piece is formed, in the process of moving the upper die upward, the rack again generates force on the tooth rod, so that the tooth rod is turned over, the demolding plate moves from the overflow cavity to the movable cavity, so that the demolding plate and the bottom of the formed sealing piece are slid and offset, so that the formed sealing piece is separated from the demolding plate, so that automatic demolding is realized, and adhesion is avoided, in the process of moving the demolding plate, the extrusion force of the push block disappears, the fourth spring recovers, so that the push block moves to the position of the communication groove, in the process of moving, the burr cut in the overflow cavity is pushed, so that the burr falls from the exhaust port after deformation, automatic chip removal is realized, and after the upper die is reset, the formed sealing piece is directly taken out, that is, the processing of the sealing piece is completed.

[0012] Preferably, the bottom end of the upper die is provided with a pressing block, the bottom end of the pressing block is provided with a top block, the lower die is provided with a forming cavity, and the pressing block and the inner wall of the forming cavity are in sliding cooperation.

[0013] Preferably, the lower mold is provided with an overflow cavity, and one end of the matching assembly is in sliding fit with the inner wall of the overflow cavity, and the bottom of the overflow cavity is provided with a waste discharge port.

[0014] Preferably, the overflow cavity is in communication with the forming cavity, and a communication groove is arranged between the overflow cavity and the forming cavity.

[0015] Preferably, the forming cavity is provided with a movable cavity at one side of the bottom end, and screw holes are arranged on the inner wall of the movable cavity, and one end of the demolding assembly is in screw fit with the screw holes.

[0016] Preferably, the upper mold is provided with a knife groove, and the bottom end of the cutting assembly is in sliding fit with the inner wall of the knife groove.

[0017] Preferably, the cutting assembly comprises a cutter, and the cutter is inserted into the knife groove.

[0018] A top plate is welded to the top end of the cutter.

[0019] A plurality of second pins are uniformly installed on the top plate, and each second pin is in insertion fit with the pressing plate.

[0020] A plurality of second springs are respectively sleeved on the corresponding second pins, and are arranged between the pressing plate and the top plate.

[0021] A plurality of third springs are respectively sleeved on the corresponding second pins, and are arranged at the top end of the pressing plate.

[0022] A plurality of adjusting caps are respectively sleeved on the corresponding second pins, and are arranged at the top end of each third spring.

[0023] Preferably, the demolding assembly comprises a demolding plate, which is arranged at the bottom end of the forming cavity, and one end of the demolding plate is inserted into the communication groove, and the other end is in sliding insertion into the movable cavity.

[0024] A lead screw is rotatably connected to one end of the demolding plate.

[0025] A toothed rod is welded to the other end of the lead screw, and the diameter of the toothed rod is slightly smaller than the diameter of the lead screw, and the toothed rod is arranged in fit with the rack.

[0026] Preferably, the demolding plate is inserted into the communication groove to form a flow guide cavity at the top end of the demolding plate and the top of the communication groove, one end of the flow guide cavity is in communication with the overflow cavity, and the other end is in communication with the forming cavity.

[0027] Preferably, the matching assembly comprises a push block, which is slidingly installed in the overflow cavity.

[0028] A plurality of third pins are connected to one end of the push block.

[0029] A plurality of fourth springs are sleeved on the corresponding third pin rods respectively.

[0030] An installation plate is sleeved on each third pin rod, and the installation plate is bolted at both ends on one side of the lower die.

[0031] Technical effects and advantages of the present application:

[0032] 1. By setting the cutting assembly in cooperation with the upper die, compared with the prior art, the cutting knife in the cutting assembly can cut the burr generated by the overflow of the edge of the formed sealing element, thereby realizing automatic deburring, improving the qualified rate of sealing element production, and avoiding manual processing of the generated burr in the later stage, thereby improving the production efficiency of the sealing element.

[0033] 2. By setting the rack, toothed rod, screw rod and demolding plate in cooperation, compared with the prior art, the rack can generate force on the toothed rod when the upper die is lowered, so that the demolding plate moves, and when the upper die is reset, the demolding plate also moves back to reset, so that the demolding plate can automatically separate from the top formed sealing element, thereby realizing automatic demolding, avoiding tearing of the sealing element when it is taken out after forming due to firm adhesion, and thereby improving the qualified rate of sealing element production.

[0034] 3. By setting the demolding plate, push block, third pin rod, fourth spring, installation plate and waste discharge port at the bottom of the overflow cavity, compared with the prior art, when extrusion molding, the demolding plate can extrude the push block, so that the internal capacity of the overflow cavity increases, thereby facilitating storage of the overflowed raw materials, and after molding, when the push block is reset, the burr formed by the raw materials in the overflow cavity after cutting can be pushed, so that the burr falls from the waste discharge port, thereby realizing automatic waste discharge. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0036] Figure 2 It is a schematic diagram of the side view structure of the present application.

[0037] Figure 3 It is a schematic diagram of the upper die connection structure of the present application.

[0038] Figure 4 It is a schematic diagram of the structure of the cutting assembly of the present application.

[0039] Figure 5 It is a schematic diagram of the lower die cutting surface structure of the present application.

[0040] Figure 6 It is a schematic diagram of the rack and demolding assembly cooperation structure of the present application.

[0041] Figure 7 A structure diagram of the cooperation assembly of the present application is shown in Figure 1. Figure 6 A structure diagram of the cooperation assembly of the present application is shown in Figure 1.

[0042] Figure 8 A structure diagram of the cooperation assembly of the present application is shown in Figure 1.

[0043] The reference signs are as follows: 1, lower die; 2, upper die; 3, first bolt rod; 4, first spring; 5, pressing plate; 6, hydraulic assembly; 7, cutting assembly; 701, cutting knife; 702, top plate; 703, second bolt rod; 704, second spring; 705, third spring; 706, adjusting cap; 8, cooperation assembly; 801, pushing block; 802, third bolt rod; 803, fourth spring; 804, mounting plate; 9, rack; 10, demolding assembly; 1001, demolding plate; 1002, screw rod; 1003, toothed rod; 11, pressing block; 12, top block; 13, forming cavity; 14, overflow cavity. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0045] As shown in the accompanying drawings Figures 1-8The shown fine sealing piece processing mold for automobile fuel cell comprises a lower die 1 and an upper die 2, the upper die 2 is arranged at the top of the lower die 1, the first bolt rod 3 is installed at the top of the upper die 2, the first spring 4 is sleeved on the first bolt rod 3, the pressing plate 5 is supported at the top of the four first springs 4, the hydraulic assembly 6 is arranged at the top of the pressing plate 5, the cutting assembly 7 is installed on the pressing plate 5, the bottom end of the cutting assembly 7 is inserted into the upper die 2, the demolding assembly 10 is installed in the lower die 1, the fitting assembly 8 is arranged at one end of the demolding assembly 10, the rack 9 is installed on one side of the upper die 2, the other end of the demolding assembly 10 is arranged in cooperation with the rack 9, the pressing block 11 is arranged at the bottom end of the upper die 2, the top block 12 is arranged at the bottom end of the pressing block 11, the forming cavity 13 is arranged on the lower die 1, the pressing block 11 is in sliding fit with the inner wall of the forming cavity 13, the overflow cavity 14 is arranged in the lower die 1, one end of the fitting assembly 8 is in sliding fit with the inner wall of the overflow cavity 14, the waste discharge port is arranged at the bottom of the overflow cavity 14, the overflow cavity 14 is communicated with the forming cavity 13, the communication groove is arranged between the overflow cavity 14 and the forming cavity 13, the movable cavity is arranged at the bottom end of one side of the forming cavity 13, the screw hole is arranged on the inner wall of the movable cavity, one end of the demolding assembly 10 is in screw fit with the screw hole, the knife groove is arranged on the upper die 2, the bottom end of the cutting assembly 7 is in sliding fit with the inner wall of the knife groove, the raw material is placed in the forming cavity 13, the pressing plate 5 is lowered through the operation of the hydraulic assembly 6, so that the upper die 2 is lowered and pressed on the lower die 1, in the process of continuous pressing, the upper die 2 and the lower die 1 are compacted and matched under the stress of each first spring 4, in the process of raw material extrusion forming, the excess raw material overflows from the flow guide cavity to the overflow cavity 14, so as to avoid the raw material from being extruded from the connection between the lower die 1 and the upper die 2, at the same time, in the process of pressing the pressing plate 5, the cutting assembly 7 also descends to cut the overflow formed burr, the rack 9 descends, the demolding assembly 10 is extruded to the fitting assembly 8 under the action of the rack 9, so that the capacity of the overflow cavity 14 is increased, the overflowed raw material is temporarily stored, after the processing is completed, the upper die 2 is reset, so that the demolding assembly 10 is reset, so that the bottom of the formed sealing piece is separated from the demolding assembly 10, automatic demolding is realized, the fitting assembly 8 is reset, the cut burr in the overflow cavity 14 is pushed, so that the burr is separated from the inner wall of the overflow cavity 14 and falls out of the waste discharge port.

[0046] As shown in the accompanying drawings Figure 3 and Figure 4 The cutting assembly 7 comprises a cutter 701, which is inserted into the knife groove.

[0047] A top plate 702 is welded at the top end of the cutter 701.

[0048] A plurality of second bolt rods 703 are uniformly installed on the top plate 702, and each second bolt rod 703 is inserted into the pressing plate 5.

[0049] A plurality of second springs 704, each second spring 704 is sleeved on the corresponding second bolt rod 703 and is between the pressing plate 5 and the top plate 702.

[0050] A plurality of third springs 705, each third spring 705 is sleeved on the corresponding second bolt rod 703 and is at the top end of the pressing plate 5.

[0051] A plurality of adjusting caps 706, each adjusting cap 706 is sleeved on the corresponding second bolt rod 703 and is at the top end of each third spring 705.

[0052] The cutter 701 can be lowered when the second spring 704 is pressed by the pressing plate 5, so as to cut off the burrs of the formed sealing element caused by overflow, and when the pressing force on the second spring 704 disappears when the upper die 2 is reset, the cutter 701 can be automatically reset with the cooperation of the third spring 705.

[0053] As shown in the accompanying drawings Figure 5 , Figure 6 and Figure 7 , the demolding assembly 10 comprises a demolding plate 1001, the demolding plate 1001 is arranged at the bottom end of the forming cavity 13, and one end of the demolding plate 1001 is inserted into the communication groove and the other end is slidably inserted into the movable cavity.

[0054] A lead screw 1002, one end of the lead screw 1002 is rotatably connected with the demolding plate 1001.

[0055] A toothed rod 1003, one end of the toothed rod 1003 is welded with the other end of the lead screw 1002, the diameter of the toothed rod 1003 is slightly smaller than the diameter of the lead screw 1002, and the toothed rod 1003 is arranged in cooperation with the rack 9.

[0056] The insertion of the demolding plate 1001 into the communication groove forms a flow guide cavity at the top end of the demolding plate 1001 and the top of the communication groove, one end of the flow guide cavity is communicated with the overflow cavity 14, and the other end is communicated with the forming cavity 13.

[0057] Through the cooperation of the toothed rod 1003 and the rack 9, the meshing force can be generated on the toothed rod 1003 during the descent of the rack 9, so that the lead screw 1002 rotates in the screw hole, thereby moving the demolding plate 1001. When the rack 9 rises after descending, the toothed rod 1003 reverses, and the demolding plate 1001 automatically resets, thereby realizing automatic separation from the formed sealing element. The diameter of the toothed rod 1003 is smaller than the diameter of the lead screw 1002, so as to facilitate the assembly of the demolding plate 1001, so that the toothed rod 1003 can penetrate through the screw hole from the movable cavity, and the lead screw 1002 cooperates with the screw hole.

[0058] As shown in the accompanying drawings Figure 5And Figure 8 As shown, the matching assembly 8 comprises a push block 801, which is slidingly installed in the overflow cavity 14.

[0059] A plurality of third pegs 802, each of which is connected to the push block 801 at one end.

[0060] A plurality of fourth springs 803, each of which is sleeved on a corresponding third peg 802.

[0061] A mounting plate 804, which is sleeved on each third peg 802 and is bolted at both ends to one side of the lower mold 1.

[0062] The push block 801 can be moved by being extruded by the stripping plate 1001, thereby increasing the capacity of the overflow cavity 14 to facilitate the storage of the overflowed raw materials. After the stripping plate 1001 is removed, the pressure on the fourth spring 803 disappears and the fourth spring 803 extends to reset, thereby resetting the push block 801. In the process of resetting the push block 801, the cut-off raw material in the overflow cavity 14 can be pushed, so that the raw material is separated from the inner wall of the overflow cavity 14, and thus can fall out from the bottom waste outlet.

[0063] The working principle of the present application is as follows: when the fine sealing element processing mold for the fuel cell is used to process the sealing element required by the fuel cell, the raw material is placed in the forming cavity 13, the pressure plate 5 is lowered by the operation of the hydraulic assembly 6, so that the upper mold 2 is lowered and pressed on the lower mold 1. With the continuous pressing process, each first spring 4 is stressed to make the upper mold 2 and the lower mold 1 compactly cooperate.

[0064] During the extrusion molding of the raw material, the excess raw material overflows from the flow guide cavity into the overflow cavity 14, thereby avoiding the extrusion of the raw material from the connection and cooperation between the lower mold 1 and the upper mold 2.

[0065] Synchronously, in the process of pressing the pressure plate 5, each second spring 704 is subjected to the pressure of the pressure plate 5, and the top plate 702 is subjected to the pressure of each second spring 704, so that the cutter 701 is lowered and pressed on the stripping plate 1001 to cut off the burr formed by overflow.

[0066] In addition, in the process of lowering the upper mold 2, the rack 9 on one side is lowered, so that the rack 9 cooperates with the toothed rod 1003 in the process of lowering, so that the toothed rod 1003 rotates, so that the connected lead screw 1002 rotates in the screw hole to make the stripping plate 1001 move from the movable cavity to the overflow cavity 14. In the process of moving the stripping plate 1001, the push block 801 is pushed to increase the capacity of the overflow cavity 14. The stripping plate 1001 blocks the bottom waste outlet, and at the same time, each fourth spring 803 is extruded by the push block 801 and compressed.

[0067] In the process of moving up of the upper die 2 after the sealing piece is formed, the rack 9 again generates force on the toothed rod 1003, so that the toothed rod 1003 is flipped, the stripper plate 1001 moves from the overflow cavity 14 to the movable cavity, so that the stripper plate 1001 is slid misaligned with the bottom of the formed sealing piece, so that the formed sealing piece is separated from the stripper plate 1001, thereby realizing automatic demolding and avoiding adhesion. In the process of moving of the stripper plate 1001, the extrusion force on the push block 801 disappears, the fourth spring 803 recovers, so that the push block 801 moves to the position of the communication groove, in the process of moving, the cut-off burr in the overflow cavity 14 is pushed, so that the burr falls from the waste discharge port after deformation, realizing automatic chip removal. After the upper die 2 is reset, the formed sealing piece is directly taken out, that is, the processing of the sealing piece is completed.

[0068] The sealing piece produced by the sealing piece processing device has the advantages that the raw material can be prevented from flowing out of the mold directly in the process of extrusion molding of the sealing piece, thereby reducing the generation of burrs, and the sealing piece can be conveniently demolded, thereby avoiding that the molded product is strongly adhered in the demolding process and is torn, and the qualified rate of the sealing piece production is improved.

[0069] Finally, it should be pointed out that: first, in the description of the present application, it should be pointed out that unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0070] Secondly: the structure involved in the drawings of the disclosed embodiments is only involved in the structure involved in the disclosed embodiments, other structures can be referred to the usual design, and in the case of no conflict, the same embodiment and different embodiments of the present application can be combined with each other;

[0071] Finally: the above only describes the preferred embodiments of the present application and is not used to limit the present application, any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fine seal processing mold for automobile fuel cells, comprising a lower mold (1) and an upper mold (2), the upper mold (2) being fitted to the top end of the lower mold (1), characterized in that: The upper die (2) top four corners are equipped with first bolt rod (3), each first bolt rod (3) is sleeved with first spring (4), four first spring (4) top is supported with pressure plate (5), the pressure plate (5) top is equipped with hydraulic assembly (6), the pressure plate (5) is installed with cutting assembly (7), the cutting assembly (7) bottom and upper die (2) are inserted with the cooperation, the lower die (1) inside is equipped with demolding assembly (10), the demolding assembly (10) one end is equipped with cooperation assembly (8), the upper die (2) one side is equipped with rack (9), the rack (9) and demolding assembly (10) other end are equipped with cooperation; The upper die (2) bottom is provided with a pressing block (11), the pressing block (11) bottom is provided with a top block (12), the lower die (1) is provided with a forming cavity (13), the pressing block (11) and the inner wall of the forming cavity (13) are in sliding fit; The lower die (1) is provided with an overflow cavity (14) inside, and the overflow cavity (14) is in sliding fit with the inner wall of the overflow cavity (14) on one end of the cooperation assembly (8), and the overflow cavity (14) is provided with a waste discharge port at the bottom; The overflow cavity (14) is communicated with the forming cavity (13), and a communication groove is arranged between the overflow cavity (14) and the forming cavity (13); The forming cavity (13) is provided with a movable cavity at the bottom of one side, and a screw hole is formed in the inner wall of the movable cavity, and the demolding assembly (10) is rotatably connected with the screw hole on one end; The demolding assembly (10) comprises a demolding plate (1001), the demolding plate (1001) is arranged at the bottom of the forming cavity (13), and one end of the demolding plate (1001) is inserted into the communication groove, and the other end is slidably inserted into the movable cavity; a lead screw (1002) is rotatably connected with the demolding plate (1001) on one end; a toothed rod (1003) is welded with the lead screw (1002) on one end, and the diameter of the toothed rod (1003) is slightly smaller than the diameter of the lead screw (1002), and the toothed rod (1003) is arranged in cooperation with the rack (9); The cooperation assembly (8) comprises a push block (801) slidably mounted in the overflow cavity (14); a plurality of third bolt rods (802) are connected with the push block (801) on one end; a plurality of fourth springs (803) are sleeved on the corresponding third bolt rods (802); a mounting plate (804) is sleeved on each third bolt rod (802), and the mounting plate (804) is bolted on one side of the lower die (1).

2. The fine seal processing mold for an automobile fuel cell according to claim 1, characterized by: The upper die (2) is provided with a knife groove, and the cutting assembly (7) is in sliding fit with the inner wall of the knife groove.

3. The fine seal processing mold for an automobile fuel cell according to claim 1, characterized by: The cutting assembly (7) comprises a cutting knife (701) inserted into a knife slot, a top plate (702) welded at the top end of the cutting knife (701), a plurality of second pegs (703) uniformly installed on the top plate (702) and each in engagement with the pressing plate (5), a plurality of second springs (704) each sleeved on a corresponding second peg (703) and each between the pressing plate (5) and the top plate (702), a plurality of third springs (705) each sleeved on a corresponding second peg (703) and each at the top end of the pressing plate (5), and a plurality of adjusting caps (706) each sleeved on a corresponding second peg (703) and each at the top end of a corresponding third spring (705).

4. The fine seal processing mold for an automobile fuel cell according to claim 1, characterized by: The demolding plate (1001) is inserted into the communication groove so that the top end of the demolding plate (1001) and the top part of the communication groove form a flow guide cavity, one end of the flow guide cavity is communicated with the overflow cavity (14), and the other end is communicated with the forming cavity (13).

Images