A graphite plate slicing mold

Abstract

The utility model discloses a kind of graphite plate slicing mould, it is related to stamping die technical field;Including upper slicing mould and lower slicing mould;Upper slicing mould is located above lower slicing mould;Lower slicing mould includes lower slicing base, lower slicing template and lower slicing press plate;Lower slicing template is elastically connected in the upper side of lower slicing base by multiple first elastic members;Lower slicing press plate is fixedly connected in lower slicing template with lower slicing base;Upper slicing mould includes upper slicing base, upper slicing template, upper slicing press plate and punch assembly;Upper slicing template is connected below upper slicing base;Upper slicing press plate is arranged in upper slicing template, and upper slicing base can be elastically connected by multiple second elastic members;Punch assembly is connected below upper slicing base and can pass through lower slicing template and lower slicing press plate.

Description

Technical Field

[0001] This utility model belongs to the field of stamping die technology, specifically relating to a graphite plate slicing die. Background Technology

[0002] In the traditional process of stamping graphite bipolar plates, flexible rubber is often placed on the bottom of the graphite bipolar plate for protection. During the stamping process, through holes are punched into the stamped area of ​​the graphite bipolar plate. However, the non-stamped area of ​​the graphite bipolar plate, especially the periphery near the stamped area, suffers bending or other deformation due to the lack of additional protective mechanisms. Further repair and deformation are required, and in severe cases, the plate may become unusable.

[0003] Furthermore, existing technologies rarely involve stamping to remove material from graphite bipolar plates. Most focus on stamping the graphite bipolar plate itself. For example, application number 202021769862.8 also involves stamping the shape of the graphite bipolar plate, rather than removing material from it. Therefore, it does not involve protecting the non-stamped areas of the graphite bipolar plate. Moreover, during the processing of the graphite bipolar plate, it is placed directly into a cavity without using a specific structure to pre-press and position the graphite bipolar plate before stamping to prevent deviations and movement during the stamping process. If the graphite bipolar plate cannot maintain its position during stamping, it is prone to displacement due to the downward pressing force, resulting in increased stamping deviations and reduced stamping accuracy. Utility Model Content

[0004] This invention provides a graphite plate slicing mold to solve the problem of not using a specific structure to pre-press and position the graphite bipolar plate before stamping, thus preventing deviation of the graphite bipolar plate and preventing it from moving during the stamping process.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A graphite plate slicing mold includes an upper slicing mold and a lower slicing mold; the upper slicing mold is located above the lower slicing mold.

[0007] The lower slicing mold includes a lower slicing base, a lower slicing template, and a lower slicing pressure plate; the lower slicing template is elastically connected above the lower slicing base by a plurality of first elastic elements; the lower slicing pressure plate is disposed inside the lower slicing template and is fixedly connected to the lower slicing base; in the initial state, there is a height difference between the lower slicing pressure plate and the lower slicing template, so that an installation position for installing a graphite bipolar plate is formed between the lower slicing template and the lower slicing pressure plate;

[0008] The upper slicing mold includes an upper slicing base, an upper slicing template, an upper slicing pressure plate, and a punch assembly. The upper slicing template is connected to the lower part of the upper slicing base. The upper slicing pressure plate protrudes from the upper slicing template and is elastically connected to the upper slicing base through multiple second elastic elements. The punch assembly is connected to the lower part of the upper slicing base and can pass through the lower slicing template and the lower slicing pressure plate. When the upper slicing mold presses downward, the punch assembly can pass through the lower slicing pressure plate to press the graphite bipolar plate to achieve stamping and forming.

[0009] The lower slicing base includes a lower base and a lower bottom plate connected above the lower base; the lower slicing template is connected above the lower bottom plate by a plurality of first elastic elements.

[0010] The lower base has symmetrical first mounting grooves on both sides along its length. One end of the first mounting groove passes through the edge of the lower base, so that the two sides of the lower base have first openings, so that bolts can be connected to the first mounting grooves through the first openings.

[0011] The lower slicing mold also includes multiple first positioning posts, and the lower base plate is connected to the lower slicing template by the first positioning posts.

[0012] The upper slicing base includes an upper base and an upper bottom plate connected below the upper base; a connecting column for connecting to the drive mechanism is connected above the upper base; the upper slicing pressure plate is connected to the bottom of the upper bottom plate through multiple second elastic elements.

[0013] The upper base has symmetrical second mounting grooves on both sides along its length. One end of the second mounting groove passes through the edge of the upper base, so that the upper base has second openings on both sides, so that bolts can be connected to the second mounting grooves through the second openings.

[0014] The upper slicing mold also includes multiple second positioning posts, and the upper base plate is connected to the upper slicing template by the second positioning posts.

[0015] The punch assembly includes a first punch, a second punch, a third punch, and a fourth punch; the first and second punches are arranged diagonally, and the third and fourth punches are arranged diagonally.

[0016] The upper cutting plate has a first pressing hole corresponding to the first punch, a second pressing hole corresponding to the second punch, a third pressing hole corresponding to the third punch, and a fourth pressing hole corresponding to the fourth punch.

[0017] The lower slicing plate has a first lower pressing hole corresponding to the first upper pressing hole, a second lower pressing hole corresponding to the second upper pressing hole, a third lower pressing hole corresponding to the third upper pressing hole, and a fourth lower pressing hole corresponding to the fourth upper pressing hole.

[0018] Due to the adoption of the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0019] 1. A graphite plate slicing mold, comprising an upper slicing mold and a lower slicing mold; the upper slicing mold is located above the lower slicing mold; the lower slicing mold includes a lower slicing base, a lower slicing template, and a lower slicing pressure plate; the lower slicing template is elastically connected to the upper part of the lower slicing base via a plurality of first elastic elements; the lower slicing pressure plate is disposed within the lower slicing template and fixedly connected to the lower slicing base; in the initial state, there is a height difference between the lower slicing pressure plate and the lower slicing template, thereby forming an installation position for mounting a graphite bipolar plate between the lower slicing template and the lower slicing pressure plate; the upper slicing mold includes an upper slicing base, an upper slicing template, an upper slicing pressure plate, and a punch assembly; the upper slicing template is connected below the upper slicing base; the upper slicing pressure plate protrudes from within the upper slicing template and is elastically connected to the upper slicing base via a plurality of second elastic elements; the punch assembly is connected below the upper slicing base and can pass through the lower slicing template and the lower slicing pressure plate, and when the upper slicing mold presses downward, the punch assembly can pass through the lower slicing pressure plate to punch the graphite bipolar plate to achieve stamping forming.

[0020] The graphite plate slicing mold of this application can effectively prevent the graphite bipolar plate from moving during the entire stamping process. It has a specific mounting position for the graphite bipolar plate, which allows the graphite bipolar plate to be positioned within the mounting position. The graphite bipolar plate mold of this application can also ensure that the graphite bipolar plate is pressed tightly without squeezing it. It can adaptively adjust according to the different widths of the graphite bipolar plate to achieve full wrapping of the graphite bipolar plate, further preventing the graphite bipolar plate from shifting during the stamping process and causing stamping deviations. This improves the stamping accuracy and slicing efficiency, and further ensures the slicing quality.

[0021] 2. In a preferred embodiment of this utility model, the lower slicing base includes a lower base and a lower bottom plate connected above the lower base; the lower slicing template is connected to the upper part of the lower bottom plate through a plurality of first elastic members. The bottom of the lower slicing template is also connected to a plurality of first elastic members, which are elastically connected to the lower bottom plate. This allows the lower slicing template to move downwards when the upper slicing mold presses downwards, under the downward pressure of the upper slicing mold, compressing the plurality of first elastic members connected to the lower slicing template. This facilitates the punch assembly in the upper slicing mold to press and form the graphite bipolar plate in the lower slicing pressure plate within the lower slicing template.

[0022] 3. In a preferred embodiment of this utility model, the lower base has symmetrically provided first mounting grooves on both sides along its length. One end of each first mounting groove penetrates the edge of the lower base, creating first openings on both sides of the lower base so that bolts can be connected to the first mounting grooves through the first openings. The purpose of providing a first mounting groove on each side of the lower base along its length is to allow bolts to be inserted into the first mounting grooves through the first openings and then fixedly connected to the worktable when the lower base is mounted on the worktable. Furthermore, because the first mounting grooves have relatively long slots, the bolts can be adjusted laterally within the first mounting grooves, providing a large adjustment range. This facilitates timely adjustment when misalignment occurs between the lower and upper bases, preventing reduced stamping accuracy caused by a fixed and unadjustable lower base position. Attached Figure Description

[0023] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of the mold closing mechanism of a graphite plate slicing mold according to one embodiment of this application;

[0025] Figure 2 This is a schematic diagram of the mold opening structure of a graphite plate slicing mold at a first angle according to one embodiment of this application;

[0026] Figure 3 This is a schematic diagram of the mold opening structure of a graphite plate slicing mold from another angle, according to one embodiment of this application.

[0027] Figure 4 This is a schematic diagram of a graphite plate slicing mold without an upper slicing template, according to one embodiment of this application.

[0028] Figure 5 This is a schematic diagram of the upper slicing plate of a graphite plate slicing mold according to one embodiment of this application;

[0029] In the picture,

[0030] 1. Lower slicing base; 11. Lower base; 12. Lower bottom plate; 2. Lower slicing template; 3. Lower slicing pressure plate; 4. Upper slicing base; 41. Upper base; 42. Upper bottom plate; 5. Upper slicing template; 6. Upper slicing pressure plate; 7. Punch assembly; 71. First punch; 72. Second punch; 73. Third punch; 74. Fourth punch; 8. First mounting slot; 9. Second mounting slot; 10. First elastic element; 13. Second elastic element; 14. First positioning post; 15. Second positioning post; 16. First upper pressure hole; 17. Second upper pressure hole; 18. Third upper pressure hole; 19. Fourth upper pressure hole; 20. First lower pressure hole; 21. Second lower pressure hole; 22. Third lower pressure hole; 23. Fourth lower pressure hole. Detailed Implementation

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0032] Furthermore, it should be understood in the description of this utility model that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "aspect," or "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0036] This utility model relates to a graphite plate slicing mold, such as... Figure 1-5 As shown, it includes an upper slicing mold and a lower slicing mold; the upper slicing mold is located above the lower slicing mold;

[0037] The lower slicing mold includes a lower slicing base 1, a lower slicing template 2, and a lower slicing pressure plate 3; the lower slicing template 2 is elastically connected to the upper part of the lower slicing base 1 by a plurality of first elastic elements 10; the lower slicing pressure plate 3 is disposed inside the lower slicing template 2 and is fixedly connected to the lower slicing base 1; in the initial state, there is a height difference between the lower slicing pressure plate 3 and the lower slicing template 2, so that an installation position for installing a graphite bipolar plate is formed between the lower slicing template 2 and the lower slicing pressure plate 3;

[0038] The upper slicing mold includes an upper slicing base 4, an upper slicing template 5, an upper slicing pressure plate 6, and a punch assembly 7. The upper slicing template 5 is connected to the lower part of the upper slicing base 4. The upper slicing pressure plate 6 protrudes from the upper slicing template 5 and can be elastically connected to the upper slicing base 4 through multiple second elastic elements 13. The punch assembly 7 is connected to the lower part of the upper slicing base 4 and can pass through the lower slicing template 2 and the lower slicing pressure plate 3. When the upper slicing mold presses downward, the punch assembly 7 can pass through the lower slicing pressure plate 3 to press the graphite bipolar plate to achieve stamping and forming.

[0039] Traditional graphite bipolar plate stamping processes require placing flexible rubber at the bottom of the graphite bipolar plate and lack additional protective structures and clamping mechanisms around the perimeter. This results in the non-stamped areas of the graphite bipolar plate not being effectively protected during stamping, leading to deformation or bending in these areas. Furthermore, existing stamping techniques typically use a die to extrude the graphite bipolar plate's interior into a standard shape, such as creating a wavy structure. Therefore, instead of directly stamping the core material to remove excess material (i.e., slicing), the graphite plate slicing die in this application allows for adjustable die position, facilitating installation and adjustment, and improving precision and stamping efficiency. Furthermore, the graphite plate mold of this application can effectively prevent the graphite bipolar plate from moving during the entire stamping process. It has a specific mounting position for the graphite bipolar plate, which allows the graphite bipolar plate to be positioned within the mounting position. The graphite bipolar plate mold of this application can also ensure that the graphite bipolar plate is pressed tightly without causing compression. It can adaptively adjust according to the different widths of the graphite bipolar plate to achieve sufficient wrapping of the graphite bipolar plate, further preventing its movement deviation, thereby improving the stamping accuracy and stamping efficiency.

[0040] First, the graphite bipolar plate is pressed tightly using an upper pressure plate. Then, it is sliced ​​by punching to obtain relatively perfect slices, i.e., four through holes are punched out, ultimately resulting in a graphite bipolar plate with four through holes. Specific description: [Example...] Figure 1 As shown, when the upper slicing mold and the lower slicing mold are separated, the graphite bipolar plate is placed on the lower slicing pressure plate 3. Since the first elastic element 10 connecting the lower slicing template 2 and the lower slicing base 1 is not compressed in the initial state, the lower slicing pressure plate 3 is lower than the lower slicing template 2. Therefore, an installation position for accommodating the graphite bipolar plate is formed in the lower slicing pressure plate 3, which can fully position the graphite bipolar plate, making it easier to accurately stamp in the next step and improve stamping accuracy.

[0041] Then, the upper slicing base 4 is driven by the drive mechanism, which drives the upper slicing template 5 and the upper slicing pressure plate 6 on the upper slicing base 4 to move downward together, so that the upper slicing template 5 and the lower slicing template 2 are positioned and connected by multiple first positioning posts 14, so as to achieve precise positioning of the upper slicing mold and the lower slicing mold. However, at this time, the upper slicing template 5 and the lower slicing template 2 are not in contact, because the upper slicing pressure plate 6 is set to protrude from the upper slicing template 5. That is, in the vertical direction, the height of the upper slicing pressure plate 6 is lower than the height of the upper slicing template 5, so that the upper slicing pressure plate 6 can protrude downward from the upper slicing template 5. Therefore, the upper slicing pressure plate 6 in the upper slicing template 5 can first contact the graphite bipolar plate and press the graphite bipolar plate by the upper slicing pressure plate 6. Since the upper slicing pressure plate 6 is directly above the lower slicing pressure plate 3, the upper slicing pressure plate 6 first contacts the graphite bipolar plate and presses the graphite bipolar plate downward under the driving action of the drive mechanism.

[0042] Then, the drive mechanism continues to drive the upper slicing mold to press downward. Since there are multiple second elastic elements 13 between the upper slicing plate 6 and the upper base plate 42, springs or compression springs can be used, depending on the specific needs. As the upper slicing mold presses downward, the multiple second elastic elements 13 connected to the upper slicing plate 6 are compressed. As the graphite bipolar plate is further pressed, the upper slicing template 5 and the lower slicing template 2 come into contact, and at the same time, the punch assembly 7 begins to contact the graphite bipolar plate.

[0043] Then, as the upper slicing mold continues to press down, the first elastic element 10 between the lower slicing template 2 and the lower base plate 12 in the lower slicing mold is compressed, allowing the first punch 71, the second punch 72, the third punch 73, and the fourth punch 74 in the punch assembly 7 to continue punching into the lower graphite bipolar plate. Since the punch assembly 7 is directly opposite to the multiple upper pressing holes in the lower slicing plate 3, i.e., the first punch 71 corresponds to the first upper pressing hole 16, the second punch 72 corresponds to the second upper pressing hole 17, the third punch 73 corresponds to the third upper pressing hole 18, and the fourth punch 74 corresponds to the fourth upper pressing hole 19, it can extend into the corresponding upper pressing holes to punch out four circular through holes in the graphite bipolar plate in the lower slicing plate 3. After removing the four circular slices, a graphite bipolar plate with four through holes is obtained. These four through holes are the structure required for subsequent battery installation of the graphite bipolar plate, such as for the insertion and exit of oxygen tubes. The function of the four through holes will not be elaborated in this application.

[0044] In a preferred embodiment, the lower slicing base 1 includes a lower base 11 and a lower bottom plate 12 connected above the lower base 11; the lower slicing template 2 is connected above the lower bottom plate 12 by a plurality of first elastic members 10.

[0045] like Figure 1As shown, the lower base 11 of the lower slicing base 1 is used to connect with the worktable of the device. The lower base plate 12 is connected to the top surface of the lower base 11 and is used to connect with the lower slicing template 2 and the lower slicing pressure plate 3. The bottom surface of the lower slicing pressure plate 3 is fixedly connected to the center of the top surface of the lower base plate 12. The four corners of the lower base plate 12 are equipped with first positioning posts 14. The lower base plate 12 is connected to the lower slicing template 2 through multiple first positioning posts 14. The lower slicing template 2 is a plate structure with a square groove in the center, which is intended to allow the lower slicing pressure plate 3 to be placed inside the lower slicing template 2.

[0046] The bottom of the lower slicing template 2 is also connected to a plurality of first elastic elements 10. The plurality of first elastic elements 10 are elastically connected to the lower base plate 12, so that when the upper slicing mold presses downward, the plurality of first elastic elements 10 connected to the lower slicing template 2 can be compressed under the downward pressure of the upper slicing mold, thereby causing the lower slicing template 2 to move downward, thereby facilitating the punch assembly 7 in the upper slicing mold to press and form the graphite bipolar plate in the lower slicing pressure plate 3 in the lower slicing template 2.

[0047] The first elastic element 10 includes, but is not limited to, springs, compression springs, and other structures, which can be determined according to needs.

[0048] In a preferred embodiment, the lower base 11 has symmetrical first mounting grooves 8 on both sides along its length. One end of the first mounting groove 8 passes through the edge of the lower base 11, so that the lower base 11 has first openings on both sides, so that bolts can be connected to the first mounting groove 8 through the first openings.

[0049] The purpose of opening a first mounting groove 8 on each side along the length direction on the lower base 11 is to allow the lower base 11 to be fixedly connected to the worktable by bolts passing through the first opening into the first mounting groove 8 when it is installed on the worktable. Moreover, since the first mounting groove 8 has a long slot, the bolt can be adjusted laterally within the first mounting groove 8, providing a large adjustment range. This facilitates timely adjustment when there is a certain deviation between the lower base 11 and the upper base 41, avoiding the problem of reduced stamping accuracy caused by the lower base 11 being fixed in position and unable to be adjusted.

[0050] In a preferred embodiment, the lower slicing mold further includes a plurality of first positioning posts 14, and the lower base plate 12 is connected to the lower slicing template 2 by the first positioning posts 14.

[0051] The purpose of having multiple first positioning posts 14 connected between the lower slicing template 2 and the lower base plate 12 is twofold: firstly, to enhance the connection strength between the lower slicing mold and the base plate; and secondly, for each first positioning post 14 to extend from the lower base plate 12 through the lower slicing template 2 to the top of the lower slicing template 2, with one end of the first positioning post 14 connected to the lower base plate 12 and the other end extending through the lower slicing template 2 and protruding beyond it. This arrangement is intended to ensure that when the upper slicing mold presses downwards, the upper slicing template 5 in the upper slicing mold can be connected to the lower slicing template 2 via the first positioning posts 14, achieving precise positioning of the upper slicing template 5 and the lower slicing template 2. This further ensures accurate correspondence between the upper slicing pressure plate 6 in the upper slicing template 5 and the lower slicing pressure plate 3 in the lower slicing template 2, thereby improving the stamping accuracy and efficiency of the device.

[0052] In a preferred embodiment, the upper slicing base 4 includes an upper base 41 and an upper bottom plate 42 connected below the upper base 41; a connecting column for connecting to a drive mechanism is connected above the upper base 41; and the upper slicing pressure plate 6 is connected below the upper bottom plate 42 by a plurality of second elastic elements 13.

[0053] like Figure 1 As shown, the upper base 41 can be connected to the drive mechanism via a connecting column. Under the drive mechanism, the upper base 41, the upper base plate 42, and the upper slicing template 5 and the upper slicing pressure plate 6 connected to the upper base plate 42 can move downward together. The upper base plate 42 is connected to the lower part of the upper base 41, and the upper slicing template 5 is connected to the lower part of the upper base plate 42. The upper slicing template 5 and the lower slicing template 2 are symmetrical in structure. The upper slicing template 5 has a groove inside, so that the upper slicing pressure plate 6 can be placed in the groove. However, the upper slicing pressure plate 6 is not fixedly connected to the upper slicing template 5. Instead, the upper slicing pressure plate 6 is set inside the upper slicing template 5, and the top of the upper slicing pressure plate 6 is connected to the upper base plate 42 through multiple second elastic elements 13. With this configuration, the upper slicing pressure plate 6 is elastically connected to the upper base plate 42 and can move relative to the upper base plate 42 under the compression and elongation of the second elastic elements 13.

[0054] Furthermore, it should be noted that the height of the upper slicing plate 6 is greater than the height of the upper slicing template 5. In other words, after the structure is assembled, the height of the upper slicing plate 6 is lower than the height of the upper slicing template 5 in the vertical direction of use. With this setting, the upper slicing plate 6 protrudes into the upper slicing template 5, allowing the upper slicing plate 6 to contact the lower slicing plate 3 first. The upper slicing template 5 contacts the lower slicing template 2 after the upper slicing plate 6 contacts the lower slicing plate 3, which facilitates the pressing of the graphite bipolar plate by the upper slicing plate 6 and the lower slicing plate 3.

[0055] In a preferred embodiment, the upper base 41 has symmetrical second mounting grooves 9 on both sides along its length. One end of the second mounting groove 9 passes through the edge of the upper base 41, so that the upper base 41 has second openings on both sides, so that bolts can be connected to the second mounting grooves 9 through the second openings.

[0056] The purpose of opening a second mounting groove 9 on each side along the length of the upper base 41 is to allow the upper base 41 to be installed on the worktable, and to be fixedly connected to the corresponding device by bolts passing through the second opening into the second mounting groove 9. Moreover, since the second mounting groove 9 has a long slot, the bolt can be adjusted laterally within the second mounting groove 9, with a large adjustment range. This facilitates timely adjustment when there is a certain deviation between the upper base 41 and the lower base 11, avoiding the problem of reduced stamping accuracy caused by the upper base 41 being fixed in position and unable to be adjusted.

[0057] In a preferred embodiment, the upper slicing mold also includes a plurality of second positioning posts 15, and the upper base plate 42 is connected to the upper slicing template 5 by the second positioning posts 15.

[0058] Multiple second positioning posts 15 are connected to the upper base plate 42, which connect to the upper slicing template 5, thereby enhancing the connection strength between the upper base plate 42 and the upper slicing template 5.

[0059] In a preferred embodiment, the punch assembly 7 includes a first punch 71, a second punch 72, a third punch 73, and a fourth punch 74; the first punch 71 and the second punch 72 are arranged diagonally, and the third punch 73 and the fourth punch 74 are arranged diagonally.

[0060] To achieve the goal of punching four through holes on the graphite bipolar plate, the punch assembly 7 is configured to include four punches: a first punch 71, a second punch 72, a third punch 73, and a fourth punch 74. To ensure that the weight of the punch assembly 7 is balanced on both sides, which is beneficial for the upper slicing die to punch downwards, the first punch 71 and the second punch 72 are arranged diagonally, and the first punch 71 and the second punch 72 have the same diameter. The third punch 73 and the fourth punch 74 are also arranged diagonally, and the third punch 73 and the fourth punch 74 have the same diameter. Thus, the first punch 71, the second punch 72, the third punch 73, and the fourth punch 74 are distributed along the four corners of the bottom surface of the lower base plate 12.

[0061] Furthermore, in order to enable the punch assembly 7 to press the graphite bipolar plate on the lower slicing plate 3 downwards, the upper slicing plate 6 needs to have a first pressing hole 16 corresponding to the first punch 71, a second pressing hole 17 corresponding to the second punch 72, a third pressing hole 18 corresponding to the third punch 73, and a fourth pressing hole 19 corresponding to the fourth punch 74. In addition, the lower slicing plate 3 has a first pressing hole 20 corresponding to the first pressing hole 16, a second pressing hole 21 corresponding to the second pressing hole 17, a third pressing hole 22 corresponding to the third pressing hole 18, and a fourth pressing hole 23 corresponding to the fourth pressing hole 19. This allows the upper slicing plate 6 to move towards the upper base plate 42 when the second elastic member 13 connected to the upper slicing plate 6 is compressed, and the first punch 71 protrudes from the first pressing hole 16, while the second punch... Punch 72 protrudes from the second pressing hole 17, punch 73 protrudes from the third pressing hole 18, and punch 74 protrudes from the fourth pressing hole 19. Thus, when the punch assembly 7 presses downward under the drive mechanism, punch 71 can press the graphite bipolar plate by corresponding to the first pressing hole 20 in the lower slicing plate 3, punch 72 can press the graphite bipolar plate by corresponding to the second pressing hole 21 in the lower slicing plate 3, punch 73 can press the graphite bipolar plate by corresponding to the third pressing hole 22 in the lower slicing plate 3, and punch 74 can press the graphite bipolar plate by corresponding to the fourth pressing hole 23 in the lower slicing plate 3. This achieves the goal of punching four through holes in the graphite bipolar plate, and four circular slices are removed by being cut out from the first pressing hole 20, the second pressing hole 21, the third pressing hole 22, and the fourth pressing hole 23.

[0062] Furthermore, the lower base plate 12 is provided with a first discharge hole corresponding to the first pressing hole 20, a second discharge hole corresponding to the second pressing hole 21, a third discharge hole corresponding to the third pressing hole 22, and a fourth discharge hole corresponding to the fourth pressing hole 23; the lower base 11 is provided with a first take-up hole corresponding to the first pressing hole 20, a second take-up hole corresponding to the second pressing hole 21, a third take-up hole corresponding to the third pressing hole 22, and a fourth take-up hole corresponding to the fourth pressing hole 23.

[0063] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0064] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0065] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A graphite plate slicing mold, characterized in that, It includes an upper slicing mold and a lower slicing mold; the upper slicing mold is located above the lower slicing mold; The lower slicing mold includes a lower slicing base, a lower slicing template, and a lower slicing pressure plate; The lower slicing template is elastically connected to the upper part of the lower slicing base through multiple first elastic elements; The lower slicing pressure plate is set inside the lower slicing template and is fixedly connected to the lower slicing base; in the initial state, there is a height difference between the lower slicing pressure plate and the lower slicing template, so that an installation position for installing graphite bipolar plates is formed between the lower slicing template and the lower slicing pressure plate; The upper slicing mold includes an upper slicing base, an upper slicing template, an upper slicing pressure plate, and a punch assembly; The upper slicing template is connected to the lower part of the upper slicing base; The upper slicing plate protrudes from the upper slicing template and is elastically connected to the upper slicing base through multiple second elastic elements; the punch assembly is connected to the lower part of the upper slicing base and can pass through the lower slicing template and the lower slicing plate. When the upper slicing mold presses downward, the punch assembly can pass through the lower slicing plate to press the graphite bipolar plate to achieve stamping.

2. The graphite plate slicing mold according to claim 1, characterized in that, The lower slicing base includes a lower base and a lower bottom plate connected to the upper part of the lower base; The lower slicing template is connected to the upper part of the lower base plate through multiple first elastic elements.

3. A graphite plate slicing mold according to claim 2, characterized in that, The lower base has symmetrical first mounting grooves on both sides along its length. One end of the first mounting groove passes through the edge of the lower base, so that the two sides of the lower base have first openings, so that bolts can be connected to the first mounting grooves through the first openings.

4. A graphite plate slicing mold according to claim 2, characterized in that, The lower slicing mold also includes multiple first positioning posts, and the lower base plate is connected to the lower slicing template by the first positioning posts.

5. A graphite plate slicing mold according to claim 1, characterized in that, The upper slicing base includes an upper base and an upper bottom plate connected to the lower part of the upper base; A connecting column for connecting to the drive mechanism is connected above the upper base; the upper slicing plate is connected to the lower part of the upper base plate through multiple second elastic elements.

6. A graphite plate slicing mold according to claim 5, characterized in that, The upper base has symmetrical second mounting grooves on both sides along its length. One end of the second mounting groove passes through the edge of the upper base, so that the upper base has second openings on both sides, so that bolts can be connected to the second mounting grooves through the second openings.

7. A graphite plate slicing mold according to claim 5, characterized in that, The upper slicing mold also includes multiple second positioning posts, and the upper base plate is connected to the upper slicing template by the second positioning posts.

8. A graphite plate slicing mold according to claim 1, characterized in that, The punch assembly includes a first punch, a second punch, a third punch, and a fourth punch; the first and second punches are arranged diagonally, and the third and fourth punches are arranged diagonally.

9. A graphite plate slicing mold according to claim 8, characterized in that, The upper cutting plate has a first pressing hole corresponding to the first punch, a second pressing hole corresponding to the second punch, a third pressing hole corresponding to the third punch, and a fourth pressing hole corresponding to the fourth punch.

10. A graphite plate slicing mold according to claim 9, characterized in that, The lower slicing plate has a first lower pressing hole corresponding to the first upper pressing hole, a second lower pressing hole corresponding to the second upper pressing hole, a third lower pressing hole corresponding to the third upper pressing hole, and a fourth lower pressing hole corresponding to the fourth upper pressing hole.

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