Continuous punching production line for battery anti-explosion piece

Abstract

The utility model discloses a continuous stamping production line for a battery anti-explosion piece, and relates to the field of stamping manufacturing, and the continuous stamping production line comprises an upper die assembly, a lower die assembly and a transmission assembly. According to the production line, multi-step continuous machining is carried out through modules such as segmentation, concave surface shaping, groove carving, convex hull shaping, ring cutting and discharging. The material belt is driven by the transmission assembly to move in a stepping mode and sequentially passes through the mold core of the upper mold assembly and the matching structure of the lower mold assembly, and accurate machining of a formed piece is achieved. Through the overall integrated design, the requirement for transfer among multiple devices in traditional production is eliminated, the production efficiency and the product consistency are improved, and the labor cost and the occupied space of the devices are reduced.

Description

[0001] A continuous stamping production line for battery explosion-proof sheets Technical Field

[0002] This application relates to the field of stamping manufacturing, and in particular to a continuous stamping production line for battery explosion-proof sheets. Background Technology

[0003] With the widespread use of electronic devices, batteries, as one of their core components, have become particularly important in terms of safety and reliability. Battery explosion-proof pads, as a key safety component of batteries, can effectively release pressure when the internal pressure of the battery is too high, preventing battery explosion and ensuring user safety.

[0004] Traditional battery explosion-proof sheet manufacturing processes typically employ a step-by-step stamping method. First, the material strip is initially stamped on an initial machine to form a blank. Subsequently, the blank needs to be transferred to different machines for shaping and scoring. This multi-step, multi-machine production method suffers from problems such as low production efficiency, high labor costs, poor product consistency, and large equipment footprint. Utility Model Content

[0005] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a continuous stamping production line for battery explosion-proof sheets, which can integrate multiple stamping steps to improve production efficiency, reduce labor costs, and ensure product consistency and precision.

[0006] The continuous stamping production line for battery explosion-proof sheets according to an embodiment of this application includes:

[0007] A transmission component is used to progressively transport the material strip along a preset movement path; a lower mold component is provided with a segmented mating structure, a concave shaping mating structure, a first grooved mating structure, a second grooved mating structure, a convex shaping mating structure, a ring-cutting mating structure, and a blanking through hole sequentially along the direction of the movement path; an upper mold component includes a segmented mold core, a concave shaping mold core, a first grooved mold core, a second grooved mold core, a convex shaping module, a ring-cutting mold core, and a blanking mold core; the segmented mold core is located at the center of the segmented mating structure. Above, several sequentially arranged forming pieces are cut from the strip. The forming pieces are rectangular in shape, with their short sides being arc-shaped. The concave shaping mold core is located directly above the concave shaping mating structure. The first groove cutting mold core is located directly above the first groove cutting mating structure. The second groove cutting mold core is located directly above the second groove cutting mating module. The convex hull shaping module is located directly above the convex hull mating structure. The ring cutting mold core is located directly above the ring cutting mating structure. The blanking mold core is located directly above the blanking mating structure.

[0008] The continuous stamping production line for battery explosion-proof sheets according to embodiments of this application has at least the following beneficial effects: Through the coordinated work of the transfer component, lower die component, and upper die component, step-by-step transfer of the material strip and multi-step continuous stamping processing are achieved. The transfer component precisely transfers the material strip according to a preset movement path, ensuring the accurate positioning of each formed sheet during processing. The cooperation of the lower die component and upper die component, through continuous processing of multiple steps such as segmentation, concave shaping, grooving, convex shaping, and circumferential cutting, eliminates the need for multiple transfers and repositioning in traditional processes. This design not only improves production efficiency and reduces manual intervention but also significantly enhances the consistency and precision of the finished product. Furthermore, by completing all stamping steps on a single production line, the space occupied by equipment is reduced, and the complexity and cost of the production line are lowered. Overall, this production line, through its highly integrated design, achieves an efficient and automated production process, meeting the market demand for high-quality battery explosion-proof sheets.

[0009] According to some embodiments of this application, the lower surface of the concave molding core is provided with a molding boss, which is used to punch a concave plane in the center of the molded sheet to obtain a first semi-finished product.

[0010] According to some embodiments of this application, the lower surface of the first grooved die core is provided with a first grooved punch for stamping a first explosion-proof mark on the first semi-finished product to obtain a second semi-finished product, so that the first explosion-proof mark is distributed at the center of the concave plane, presenting two opposing arc structures, the vertices of the two arc structures are connected, and the opening of the arc structure points to the long side of the first semi-finished product.

[0011] According to some embodiments of this application, the lower surface of the second grooved die core is provided with a second grooved punch. The second grooved punch is arranged in a ring shape with a safety notch. The second grooved punch is used to stamp out a second explosion-proof mark on the second semi-finished product to obtain a third semi-finished product, so that the second explosion-proof mark is arranged in a ring in the concave plane and close to the edge of the concave plane. The second explosion-proof mark has a safety position on one long side, the safety position is corresponding to the safety notch, and the second explosion-proof mark is connected to the endpoint of the first explosion-proof mark.

[0012] According to some embodiments of this application, the lower surface of the second grooved die core is further provided with a third grooved punch, the shape and position of the third grooved punch being the same as the first grooved punch, and used for secondary stamping of the first explosion-proof groove.

[0013] According to some embodiments of this application, the lower surface of the convex hull shaping module is recessed inward to form a shaping groove, the center of the shaping groove is directly opposite the center of the concave plane, the size of the shaping groove is smaller than the concave plane, the upper surface of the convex hull shaping mating structure protrudes upward to form a protrusion, the protrusion is adapted to the shape of the shaping groove, the convex hull shaping module and the convex hull shaping mating structure cooperate with each other to form an upwardly protruding convex hull in the concave plane, thereby obtaining a fourth semi-finished product.

[0014] According to some embodiments of this application, the lower surface of the circumferential cutting die core is provided with a first circumferential cutting punch, which is used to stamp a blanking mark on the fourth semi-finished product. The blanking mark is located on the periphery of the concave plane. The lower surface of the blanking die core is provided with a second circumferential cutting punch, which has the same shape as the first circumferential cutting punch and a greater protrusion height than the first circumferential cutting punch. The blanking die core is used to cut the fourth semi-finished product along the blanking mark to produce an explosion-proof disc, so that the explosion-proof disc falls from the blanking through hole to a designated position.

[0015] According to some embodiments of this application, the upper mold assembly further includes, from top to bottom, an upper mold base, a first upper mold, and a second upper mold. The first upper mold is disposed on the lower surface of the upper mold base. The dividing mold core, the concave shaping mold core, the first grooved mold core, the second grooved mold core, the ring-cutting mold core, and the blanking mold core are disposed on the first upper mold and are movably inserted through the second upper mold. There is a gap between the second upper mold and the first upper mold, and they are movably connected by a limiting member.

[0016] According to some embodiments of this application, the lower surface of the second upper mold is provided with upper mold mounting grooves at corresponding positions of the concave shaping mold core, the first grooved mold core, the second grooved mold core, the convex shaping module, and the circumferential cutting mold core. The convex shaping module is disposed in the corresponding upper mold mounting groove, and the remaining upper mold mounting grooves are provided with mold sleeve blocks. The concave shaping mold core, the first grooved mold core, the second grooved mold core, and the circumferential cutting mold core are movably disposed in the corresponding mold sleeve blocks.

[0017] According to some embodiments of this application, the lower mold assembly further includes a lower template and a lower mold base from top to bottom. The upper surface of the lower template is provided with lower mold mounting grooves at corresponding positions of the segmented mating structure, the concave surface shaping mating structure, the first grooved mating structure, the second grooved mating structure, the convex hull shaping mating structure, and the circumferential cutting mating structure. The segmented mating structure, the concave surface shaping mating structure, the first grooved mating structure, the second grooved mating structure, the convex hull shaping mating structure, and the circumferential cutting mating structure are sequentially arranged in the corresponding lower mold mounting grooves. Attached Figure Description

[0018] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 This is a schematic diagram of the continuous stamping production line for battery explosion-proof sheets according to an embodiment of this application;

[0020] Figure 2 This is a schematic diagram of the continuous stamping production line for battery explosion-proof sheets according to an embodiment of this application, viewed from another perspective.

[0021] Figure 3 This is a schematic diagram of the continuous stamping production line for battery explosion-proof sheets according to an embodiment of this application, viewed from the front.

[0022] Figure 4 This is a schematic diagram of the structure of the lower surface of the segmented mold core according to an embodiment of this application;

[0023] Figure 5 This is a schematic diagram of the lower surface of the concave molding core according to an embodiment of this application;

[0024] Figure 6 This is a schematic diagram of the structure of the lower surface of the first groove die core in an embodiment of this application;

[0025] Figure 7 This is a schematic diagram of the structure of the lower surface of the second groove die core in an embodiment of this application;

[0026] Figure 8 This is a schematic diagram of the lower surface of the convex hull shaping module in an embodiment of this application;

[0027] Figure 9 This is a schematic diagram of the lower surface of the circumferential cutting die core according to an embodiment of this application;

[0028] Figure 10 This is a schematic diagram of the structure of the strip after step-by-step processing according to an embodiment of this application;

[0029] Figure 11 This is an exploded structural diagram of the upper mold component in an embodiment of this application;

[0030] Figure 12 This is an exploded structural diagram of the module component in an embodiment of this application.

[0031] Figure label:

[0032] Upper mold assembly 100; Segmented mold core 110; Concave shaping mold core 120; Shaping boss 121; First groove engraving mold core 130; First groove engraving punch 131; Second groove engraving mold core 140; Second groove engraving punch 141; Safety notch 142; Third groove engraving punch 143; Convex bulge shaping module 150; Shaping groove 151; Ring cutting mold core 160; First ring cutting punch 161; Blanking mold core 170; Upper mold base 181; First upper mold 182; Second upper mold 190; Upper mold mounting groove 191; Mold sleeve block 192; Lower mold assembly 200; Segmented mating structure 2 10; Concave molding fit structure 220; First groove fit structure 230; Second groove fit structure 240; Convex bulge molding fit structure 250; Ring cutting fit structure 260; Material discharge through hole 270; Lower mold base 280; Lower template 290; Lower mold mounting groove 291; Material strip 300; Molded sheet 310; Connecting structure 311; First semi-finished product 320; Concave plane 321; Second semi-finished product 330; First explosion-proof groove 331; Third semi-finished product 340; Second explosion-proof groove 341; Safety position 342; Fourth semi-finished product 350; Convex bulge 351. Detailed Implementation

[0033] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0034] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, 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 application 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 application.

[0035] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0036] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0037] In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. 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.

[0038] In existing technologies, the production of battery explosion-proof sheets typically employs a step-by-step stamping process. First, the material strip is initially stamped on an initial equipment to form a blank. Subsequently, the blank needs to be transferred to different equipment for shaping and scoring. This multi-step, multi-equipment production method suffers from problems such as low production efficiency, high labor costs, poor product consistency, and large equipment footprint.

[0039] Therefore, this application provides a continuous stamping production line for battery explosion-proof sheets, which can solve the problems existing in the prior art. The technical solutions provided in this application will be described in detail below.

[0040] This is a schematic diagram of the continuous stamping production line for battery explosion-proof sheets according to an embodiment of this application. The continuous stamping production line includes a lower die assembly 200, an upper die assembly 100, and a transmission assembly (not shown in the figure). The lower die assembly 200, along the moving direction of the material strip 300, is sequentially provided with a segmented mating structure 210, a concave shaping mating structure 220, a first grooved mating structure 230, a second grooved mating structure 240, a convex shaping mating structure 250, a ring-cutting mating structure 260, and a blanking through hole 270. The upper die assembly 100, along the moving direction of the material strip 300, is sequentially provided with a segmented die core 110, a concave shaping die core 120, a first grooved die core 130, a second grooved die core 140, a convex shaping module 150, a ring-cutting die core 160, and a blanking die core 170. The segmented die core 110 is located directly above the segmented mating structure 210. Figure 1 and Figure 2 As shown, the dividing die core 110 presses downwards, which can divide the strip 300 into several sequentially arranged forming pieces 310, such as... Figure 10As shown, the molding sheet 310 is a rectangular shape that is roughly elliptical, with its short side being arc-shaped. Each molding sheet 310 is connected to the strip 300 through the connecting structure 311. The concave molding core 120 is located directly above the concave molding mating structure 220. The first grooved core 130 is located directly above the first grooved mating structure 230. The second grooved core 140 is located directly above the second grooved mating module. The convex shaping module 150 is located directly above the convex mating structure. The ring-cutting core 160 is located directly above the ring-cutting mating structure 260. The blanking core 170 is located directly above the blanking through hole 270.

[0041] The material strip 300 is located between the upper mold assembly 100 and the lower mold assembly 200. The molded pieces 310 on the material strip 300 move continuously in a step-by-step manner in the downward material direction under the drive of the transmission assembly. Each molded piece 310 passes under the dividing mold core 110, the concave shaping mold core 120, the first groove engraving mold core 130, the second groove engraving mold core 140, the convex shaping module 150, the ring cutting mold core 160, and the blanking mold core 170 as the material strip 300 moves, and finally the explosion-proof sheet product is obtained.

[0042] Through the coordinated operation of the transfer component, lower die component 200, and upper die component 100, the material strip 300 is transported in a step-by-step manner, enabling continuous multi-step stamping processing. The transfer component precisely transports the material strip 300 along a preset movement path, ensuring the accurate positioning of each formed piece 310 during processing. The cooperation between the lower die component 200 and the upper die component 100, through continuous processing involving multiple steps such as segmentation, concave shaping, grooving, convex shaping, and circumferential cutting, eliminates the need for multiple transfers and repositioning required in traditional processes. This design not only improves production efficiency and reduces manual intervention but also significantly enhances the consistency and precision of the finished products. Furthermore, by completing all stamping steps on a single production line, it reduces equipment space requirements and lowers the complexity and cost of the production line. Overall, this production line, through its highly integrated design, achieves an efficient and automated production process, meeting the market demand for high-quality battery explosion-proof sheets.

[0043] like Figure 5 As shown, in some embodiments, the lower surface of the concave molding core 120 is provided with a molding boss 121, and the upper surface of the concave molding mating structure 220 is provided with a concave mold (not shown in the figure) that matches the molding boss 121. The concave molding core 120 and the concave molding mating structure 220 are pressed together to punch a concave plane 321 in the center of the molded sheet 310, thereby obtaining the first semi-finished product 320. Figure 10The shape of the recessed plane 321 is similar to that of the molded sheet 310, and the edge of the recessed platform is close to the edge of the molded sheet 310. The stamping of the recessed plane 321 actually forms an approximately stepped structure at the edge of the molded sheet 310, and this stepped structure helps to increase the structural stability of the explosion-proof sheet.

[0044] like Figure 6 As shown, in some embodiments, the lower surface of the first grooved die core 130 is provided with a first grooved punch 131, and the upper surface of the first grooved mating structure 230 is provided with a mating die (not shown in the figure). The first grooved die core 130 and the first grooved mating structure 230 are pressed together to stamp out the first explosion-proof groove 331 on the first semi-finished product 320, thereby obtaining the second semi-finished product 330. Figure 10 The first explosion-proof notch 331 is distributed at the center of the concave plane 321, presenting as two opposing arc-shaped structures with their vertices meeting. The openings of the arc-shaped structures point towards the long side of the first semi-finished product 320. The design of the first explosion-proof notch 331 as two opposing arc-shaped structures provides a predetermined rupture path when the internal pressure of the battery is too high. This design ensures that the battery can safely release internal pressure under overpressure conditions, preventing the battery casing from bursting, thereby protecting the safety of the user and equipment.

[0045] like Figure 7 In some embodiments, the lower surface of the second grooved die core 140 is provided with a second grooved punch 141, and the upper surface of the second grooved mating structure 240 is provided with a mating die (not shown in the figure). The second grooved die core 140 and the second grooved mating structure 240 are pressed together to stamp out the second explosion-proof groove 341 on the second semi-finished product 330, thereby obtaining the third semi-finished product 340. Figure 7 The second groove punch 141 is annular with a safety notch 142, corresponding to the shape of the second groove punch 141, such as... Figure 10 The second explosion-proof notch 341 is distributed in a ring shape within the recessed plane 321 and is close to the edge of the recessed plane 321. A safety position 342 is provided on one long side of the second explosion-proof notch 341, which corresponds to the safety notch 142 on the second groove punch 141. Simultaneously, as shown in the figure, the second explosion-proof notch 341 is connected to the endpoint of the first explosion-proof notch 331. The second groove punch core 140 stamps the second explosion-proof notch 341 onto the second semi-finished product 330, providing an additional safety barrier. If the first explosion-proof notch 331 fails to fully release pressure, the second explosion-proof notch 341 can serve as a supplement, ensuring that the battery can safely release internal pressure during overvoltage. Furthermore, by providing the safety position 342 on the long side, the controllability of the rupture is further enhanced, preventing secondary damage caused by the ejected fragments. This design ensures that the explosion-proof fragments can rupture according to the designed path and method under abnormal conditions.

[0046] Furthermore, such as Figure 7 As shown, in some embodiments, the lower surface of the second grooved die core 140 is further provided with a third grooved punch 143, and the upper surface of the second grooved mating structure 240 is also provided with a mating die (not shown in the figure). The shape and position of the third grooved punch 143 are the same as those of the second grooved punch 141. The third grooved punch 143 is used to perform secondary stamping on the first explosion-proof groove 331. Through secondary stamping, the third grooved punch 143 can correct any deviations or unevenness that may occur during the first stamping process, ensuring that the depth and shape of the first explosion-proof groove 331 meet the design requirements, thereby improving the reliability and consistency of the explosion-proof sheet.

[0047] like Figure 8 In some embodiments, the lower surface of the convex shaping module 150 is recessed inward to form a shaping groove 151, the center of which is directly opposite to the center of the recessed plane 321 in the third semi-finished product 340, and the size of the shaping groove 151 is smaller than that of the recessed plane 321. Figure 12 The upper surface of the convex hull molding fitting structure 250 protrudes upward to form a protrusion, which is adapted to the shape of the molding groove 151. The convex hull molding module 150 and the convex hull molding fitting structure 250 cooperate to form an upwardly protruding convex hull 351 within the concave plane 321 of the third semi-finished product 340, resulting in the fourth semi-finished product 350, as shown below. Figure 10 By stamping a protrusion 351 into the concave plane 321 of the third semi-finished product 340, when the internal pressure of the battery reaches a certain level, the pressure can be guided to concentrate towards the center of the first explosion-proof notch 331, so that the explosion-proof sheet will break preferentially at that position, thereby better controlling the breaking process and avoiding uncontrolled breaking.

[0048] like Figure 9In some embodiments, the lower surface of the circumferential cutting die core 160 is provided with a first circumferential cutting punch 161, and the upper surface of the circumferential cutting mating structure 260 is provided with a matching die (not shown in the figure). The circumferential cutting die core 160 and the circumferential cutting mating structure 260 are pressed together to punch blanking marks on the fourth semi-finished product 350. The blanking marks are located around the concave plane 321. The lower surface of the blanking die core 170 is provided with a second circumferential cutting punch. The shape of the second circumferential cutting punch is the same as that of the first circumferential cutting punch 161, and the protrusion height of the second circumferential cutting punch is greater than that of the first circumferential cutting punch 161. The blanking die core 170 is used to cut the fourth semi-finished product 350 along the blanking marks to produce the explosion-proof sheet product, so that the explosion-proof sheet product falls from the blanking through hole 270 into the designated position. First, the circumferential cutting die core 160 cuts out blanking marks, and then the blanking die core 170 sets the blanking parameters. By pre-cutting the marks, the shape and position of the blanking are precisely controlled, reducing the risk of material breakage, improving the smoothness of the blanking process and production efficiency, and improving the quality of the cut edges, making the finished product edges smoother and neater. This optimizes the entire blanking process and ensures production stability and product quality.

[0049] like Figure 3 In some embodiments, the upper mold assembly 100 further includes, from top to bottom, an upper mold base 181, a first upper mold 182, and a second upper mold 190. The first upper mold 182 is fixed to the lower surface of the upper mold base 181. The dividing mold core 110, the concave shaping mold core 120, the first grooved mold core 130, the second grooved mold core 140, the ring-cutting mold core 160, and the blanking mold core 170 are all disposed on the first upper mold 182 and are movably inserted through the second upper mold 190. There is a gap between the second upper mold 190 and the first upper mold 182, and they are movably connected by a limiting member (not shown in the figure). When the upper die holder 181 moves the first upper die 182 downwards for stamping, the strip 300 may adhere to the die core. By designing a movable connection between the second upper die 190 and the first upper die 182, when the upper die holder 181 rises, the second upper die 190 will move downwards relative to the first upper die 182 due to gravity, thereby peeling the adhered strip 300 off the die core. Understandably, a spring can also be added between the first upper die 182 and the second upper die 190 to ensure the reliability of the second upper die 190's operation.

[0050] like Figure 11 In some embodiments, the lower surface of the second upper mold 190 is provided with upper mold mounting grooves 191 at corresponding positions of the concave shaping mold core 120, the first grooved mold core 130, the second grooved mold core 140, the convex shaping module 150, and the circumferential mold core 160. The convex shaping module 150 is disposed within the corresponding upper mold mounting groove 191. The remaining upper mold mounting grooves 191 are provided with mold sleeve blocks 192, and the concave shaping mold core 120, the first grooved mold core 130, the second grooved mold core 140, and the circumferential mold core 160 are movably inserted into the corresponding mold sleeve blocks 192.

[0051] like Figure 12 In some embodiments, the lower mold assembly 200 further includes, from top to bottom, a lower mold template 290 and a lower mold base 280. The upper surface of the lower mold template 290 is sequentially provided with lower mold mounting grooves 291 at corresponding positions of the segmented mating structure 210, the concave shaping mating structure 220, the first groove engraving mating structure, the second groove engraving mating structure, the convex hull shaping mating structure 250, and the circumferential cutting mating structure 260. The segmented mating structure 210, the concave shaping mating structure 220, the first groove engraving mating structure, the second groove engraving mating structure, the convex hull shaping mating structure 250, and the circumferential cutting mating structure 260 are sequentially arranged within their respective lower mold mounting grooves 291.

[0052] Understandably, a modular design can be achieved by setting mounting slots at corresponding positions on the second upper mold 190 and the lower mold plate 290, and embedding the corresponding structures within them. When the mold becomes worn or damaged, only the worn module can be replaced, instead of the entire mold, thereby reducing the scope and complexity of replacement and lowering maintenance and replacement costs.

[0053] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application. Furthermore, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other.

Claims

1. A battery venting sheet continuous punching production line, characterized by, The utility model relates to a kind of moulding machine, including: Transmission assembly is used to step transmission material belt according to preset moving path; Lower die assembly is sequentially provided with segmentation cooperation structure, concave shaping cooperation structure, first slotting cooperation structure, second slotting cooperation structure, convex shaping cooperation structure, ring cutting cooperation structure and blanking through hole along the direction of the moving path; Upper die assembly includes segmentation core, concave shaping core, first slotting core, second slotting core, convex shaping module, ring cutting core and blanking core; The segmentation core is located directly above the segmentation cooperation structure, for segmentation on material belt and form several sequentially arranged forming pieces, the shape of the forming piece is oval rectangle, and the short side is arc-shaped;The concave shaping core is located directly above the concave shaping cooperation structure, the first slotting core is located directly above the first slotting cooperation structure, the second slotting core is located directly above the second slotting cooperation structure, convex shaping module is located directly above the convex cooperation structure, the ring cutting core is located directly above the ring cutting cooperation structure, and the blanking core is located directly above the blanking through hole.

2. The battery explosion venting sheet continuous punching production line according to claim 1, characterized in that, The lower surface of the concave shaping core is provided with a shaping boss, which is used to punch a concave plane in the center of the forming piece to obtain a first semi-finished product.

3. The battery explosion venting sheet continuous punching production line according to claim 2, characterized in that, The lower surface of the first slotting core is provided with a first slotting punch, which is used to punch a first anti-explosion notch on the first semi-finished product to obtain a second semi-finished product, so that the first anti-explosion notch is distributed in the center of the concave plane and presents two opposite arc structures, the vertices of the two arc structures are connected, and the opening of the arc structure points to the long side of the first semi-finished product.

4. The battery explosion venting sheet continuous punching production line according to claim 3, characterized in that, The lower surface of the second slotting core is provided with a second slotting punch, which is annularly distributed with a safety gap, and is used to punch a second anti-explosion notch on the second semi-finished product to obtain a third semi-finished product, so that the second anti-explosion notch is annularly distributed in the concave plane and close to the edge of the concave plane, the second anti-explosion notch is provided with a safety position on one long side, the safety position corresponds to the safety gap, and the second anti-explosion notch is connected with the end point of the first anti-explosion notch.

5. The battery rupture disk continuous punching production line according to claim 4, characterized in that, The lower surface of the second slotting core is also provided with a third slotting punch, which has the same shape and position as the first slotting punch, and is used to punch the first anti-explosion notch again.

6. The battery explosion venting sheet continuous punching production line according to claim 4, characterized in that, The lower surface of the convex shaping module is recessed inward to form a shaping groove, the center of the shaping groove is opposite to the center of the concave plane, the size of the shaping groove is smaller than the concave plane, the upper surface of the convex shaping cooperation structure is protruded upward to form a protruding part, the protruding part is matched with the shape of the shaping groove, the convex shaping module and the convex shaping cooperation structure are matched with each other, and are used to form a convex upward in the concave plane to obtain a fourth semi-finished product.

7. The battery rupture disk continuous punching production line according to claim 6, characterized in that, The lower surface of the ring cutting mold core is provided with a first ring cutting punch for stamping out a blanking score on the fourth semi-finished product, the blanking score being located at the periphery of the lower concave plane, the lower surface of the blanking mold core is provided with a second ring cutting punch, the shape of the second ring cutting punch is the same as that of the first ring cutting punch, and the protruding height of the second ring cutting punch is greater than that of the first ring cutting punch, the blanking mold core is used to cut the fourth semi-finished product into a blasting sheet product along the blanking score, so that the blasting sheet product falls into the designated position from the blanking through hole.

8. The battery explosion venting sheet continuous punching production line according to any one of claims 1-7, characterized in that, The upper die assembly further includes an upper die seat, a first upper die and a second upper die from top to bottom, the first upper die is arranged on the lower surface of the upper die seat, the split mold core, the concave shaping mold core, the first groove scoring mold core, the second groove scoring mold core, the ring cutting mold core and the blanking mold core are arranged in the first upper die and movably penetrate the second upper die, there is a gap between the second upper die and the first upper die, and the gap is movably connected through a limiting piece.

9. The battery rupture disk continuous punching production line according to claim 8, characterized in that, The lower surface of the second upper die is provided with an upper die mounting groove at the corresponding position of the concave shaping mold core, the first groove scoring mold core, the second groove scoring mold core, the convex hull shaping module and the ring cutting mold core, the convex hull shaping module is arranged in the corresponding upper die mounting groove, and the remaining upper die mounting grooves are provided with die sleeve blocks, and the concave shaping mold core, the first groove scoring mold core, the second groove scoring mold core and the ring cutting mold core movably penetrate the corresponding die sleeve blocks.

10. The battery rupture disk continuous punching production line according to claim 1, characterized in that, The lower die assembly further includes a lower die plate and a lower die seat from top to bottom, the upper surface of the lower die plate is provided with a lower die mounting groove at the corresponding position of the split cooperation structure, the concave shaping cooperation structure, the first groove scoring cooperation structure, the second groove scoring cooperation structure, the convex hull shaping cooperation structure and the ring cutting cooperation structure, and the split cooperation structure, the concave shaping cooperation structure, the first groove scoring cooperation structure, the second groove scoring cooperation structure, the shaping cooperation structure and the ring cutting cooperation structure are arranged in the corresponding lower die mounting groove.

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