Ejection device and stamping die

Abstract

The utility model relates to the technical field of stamping dies, in particular to an ejection device and a stamping die. The ejection device comprises a lower die; the pushing and ejecting assembly is movably arranged on the lower die, and the pushing and ejecting assembly is used for pushing and ejecting a product on the forming assembly so as to separate the product from the forming assembly; and the first ejection assembly is movably arranged in the lower mold, and the first ejection assembly is used for ejecting the product out of the forming assembly to achieve demolding. According to the scheme, through the additionally arranged pushing and ejecting assembly, a product in the forming assembly is pushed and loosened in advance before demolding, the follow-up ejection process of the first ejection assembly is assisted, the product can be completely demolded from the forming assembly, the forming assembly is evenly stressed, springback cannot be generated, and the demolding efficiency is improved. And other parts in the mold are not influenced.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, specifically to an ejection device and a stamping die. Background Technology

[0002] Stamping is a pressure processing method that uses a stamping die on a press to apply pressure to a material at room temperature, causing it to undergo plastic deformation or separation, thereby obtaining parts of the required shape and size. The above stamping process is usually combined with a demolding device to demold the formed product.

[0003] However, existing demolding devices have the following shortcomings: 1. For structures where the product sticks too tightly to the die, if the spring force used by the demolding device for ejection is too small, the product will be pressed into the mold, and the spring will not be able to rebound, easily leading to incomplete ejection and failure to demold. 2. If a high-force elastic component is directly replaced for ejection, inertial rebound is likely to occur, which may also damage other parts inside the mold. Utility Model Content

[0004] The purpose of this utility model is to propose an ejection device and a stamping die, which aims to solve the technical problem of the existing stamping equipment's demolding device being unable to eject the product due to the product sticking too tightly to the die and thus making it difficult to demold.

[0005] To achieve the above objectives, this utility model proposes an ejection device, including a lower mold;

[0006] A pusher assembly is movably disposed on the lower mold, the pusher assembly being used to push the product on the forming assembly to separate the product from the forming assembly;

[0007] A first ejection assembly is movably disposed within the lower mold, and the first ejection assembly is used to eject the product from the molding assembly to achieve demolding.

[0008] Preferably, the push assembly includes a slider fixing seat, an upper mold push block, a sliding pin, a first lower mold slider, and a second lower mold slider. The slider fixing seat has an active channel for the upper mold push block to move up and down. The middle part of the upper mold push block is bent to one side to form a bent section. The active channel includes a corresponding bent section, and the bent section is provided with the sliding pin. The second lower mold slider is connected to the slider fixing seat. The first lower mold slider is located above the second lower mold slider, and the second lower mold slider has multiple protrusions. The bottom end of the first lower mold slider has multiple corresponding recesses. When the upper mold push block moves to the point where the bent section passes the sliding pins on both sides, it pushes the slider fixing seat and the second lower mold slider to move horizontally, so that:

[0009] When the second lower mold slider moves to a position where the protrusion is not located within the recess, the protrusion pushes the first lower mold slider upward, causing the molding component to lift the product upward to achieve separation.

[0010] The second lower die slider moves until the protrusion is exactly inside the recess, and the first lower die slider does not contact the molding component.

[0011] Preferably, the upper mold push block includes a first connecting segment, the bending segment, and a second connecting segment. The first connecting segment extends vertically downward, and the end of the first connecting segment bends to one side to form the bending segment. The end of the bending segment extends vertically downward to form the second connecting segment.

[0012] The active channel includes a first segment, a bent segment, and a second segment. The first segment extends vertically downwards, and the end of the first segment bends to one side to form the bent segment. The bent segment bends in the same direction as the folded segment, and the end of the bent segment extends vertically downwards to form the second segment.

[0013] Preferably, the second lower die slider has at least two protrusions, and the lower end of the first lower die slider has at least two recesses.

[0014] Preferably, the first ejection assembly includes a first ejector rod and a first elastic element, the top end of the first ejector rod is connected to the bottom end of the molding assembly, and the bottom end of the first ejector rod is provided with the first elastic element.

[0015] Preferably, it further includes a second ejection assembly, which is movably disposed within the lower mold, and the second ejection assembly is provided on at least one side of the first ejection assembly;

[0016] The second ejection assembly includes a second ejector rod, a second elastic element, and a float. The float is connected to the bottom end of the forming assembly. At least one second ejector rod is provided at the bottom end of the float, and the second elastic element is provided at the bottom end of the second ejector rod.

[0017] In addition, this utility model also proposes a stamping die, including the above-mentioned ejection device.

[0018] Preferably, the stamping die further includes the forming component and the upper die forming punch assembly, the upper die forming punch assembly being movably disposed on the lower die, and the upper die forming punch assembly being used to stamp and form the product in the forming component.

[0019] Preferably, the molding assembly includes a first molding die, a die pad, a second molding die, a molding core, and a pin. The first molding die is disposed on the die pad. The outer diameter of the first end of the second molding die is greater than the outer diameter of the second end of the second molding die. The upper end of the first end is inserted into the first molding die, and the lower end of the first end and the upper end of the second end are inserted into the die pad. The molding core is disposed in the second molding die, and the pin connects the molding core, the second molding die, and the die pad.

[0020] The pusher assembly is used to push the molding core upwards to separate the product from the first molding die.

[0021] The first ejection assembly is used to push the molding core and the second molding die upward to eject the product from the molding assembly and achieve demolding.

[0022] Preferably, the upper die forming punch assembly includes an upper die, an upper die forming punch, an upper die ejector pin, and a third elastic element. The upper die is movably disposed above the lower die, and both the upper die forming punch and the upper die push block are connected to the upper die.

[0023] The upper mold is provided with at least one upper mold ejector rod, and the top end of the upper mold ejector rod is provided with the third elastic element. When the upper mold drives the upper mold ejector rod to move downward, the bottom end of the upper mold ejector rod passes through the lower mold and abuts against the float.

[0024] The ejection device and stamping die disclosed in this utility model have the following beneficial effects: by adding the pusher component, the product in the forming component is pushed a little before demolding, loosening the product on the forming component, which helps the subsequent ejection process of the first ejection component, making it easier for the product to be completely demolded from the forming component, the forming component is subjected to uniform force, there will be no springback, and it will not affect other parts in the mold. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the stamping die of this utility model;

[0027] Figure 2 This is a cross-sectional structural diagram of the stamping die of this utility model;

[0028] Figure 3 This is a partial structural diagram of the stamping die of this utility model;

[0029] Figure 4 This is an exploded view of the stamping die part of this utility model;

[0030] Figure 5 This is a schematic cross-sectional view of the stamping die of this utility model when the die is closed, from the main perspective.

[0031] Figure 6 This is a schematic cross-sectional view of the stamping die of this utility model from the side when the die is closed;

[0032] Figure 7 for Figure 6 A magnified view of a portion of the image;

[0033] Figure 8 This is a schematic cross-sectional view of the stamping die of this utility model from the main perspective when the die is opened;

[0034] Figure 9 This is a schematic cross-sectional view of the stamping die of this utility model from the side when the die is opened;

[0035] Figure 10 for Figure 9 A magnified view of a portion of the image.

[0036] In the attached diagram: 1-lower mold, 2-push-out assembly, 21-slider fixing seat, 211-moving channel, 2111-bending section, 2112-first section, 2113-second section, 22-upper mold push block, 221-bending section, 222-first connecting section, 223-second connecting section, 23-sliding pin, 24-first lower mold slider, 241-recessed part, 25-second lower mold slider, 251-protrusion, 3-forming assembly, 31-first forming die 32-Die pad, 33-Second forming die, 331-First end, 332-Second end, 34-Forming core, 35-Pin, 4-Product, 5-First ejector assembly, 51-First ejector pin, 52-First elastic element, 6-Second ejector assembly, 61-Second ejector pin, 62-Second elastic element, 63-Float block, 7-Upper die forming punch assembly, 71-Upper die, 72-Upper die forming punch, 73-Upper die ejector pin, 74-Third elastic element.

[0037] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] It should be noted that if the embodiments of this utility model involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0040] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0041] like Figures 1 to 10 As shown, an ejection device includes a lower mold 1;

[0042] Pushing component 2 is movably disposed on the lower mold 1. The pushing component 2 is used to push the product 4 on the forming component 3 to separate the product 4 from the forming component 3.

[0043] The first ejection component 5 is movably disposed within the lower mold 1, and the first ejection component 5 is used to eject the product 4 from the molding component 3 to achieve demolding.

[0044] In this solution, by adding this mechanical pusher component 2, the molding component 3 is subjected to uniform force, and there will be no rebound. It will not affect other parts in the mold. Its working principle is to first push the product 4 in the molding component 3 to loosen the product 4 on the molding component 3, so as to help the first ejector component 5 to eject, so that the product 4 can be completely demolded from the molding component 3.

[0045] Further, the push assembly 2 includes a slider fixing seat 21, an upper mold push block 22, a sliding pin 23, a first lower mold slider 24, and a second lower mold slider 25. The slider fixing seat 21 has an active channel 211 for the upper mold push block 22 to move up and down. The middle part of the upper mold push block 22 is bent to one side to form a bent section 221. The active channel 211 includes a corresponding bent section 2111. The bent section 2111 is provided with the sliding pin 23. The second lower mold slider 25 is connected to the slider fixing seat 21. The first lower mold slider 24 is located above the second lower mold slider 25, and the second lower mold slider 25 is provided with multiple protrusions 251. The bottom end of the first lower mold slider 24 is provided with multiple corresponding recesses 241. When the upper mold push block 22 moves to the point where the bent section 221 passes the sliding pins 23 on both sides, it pushes the slider fixing seat 21 and the second lower mold slider 25 to move horizontally, so that:

[0046] When the second lower mold slider 25 moves to a point where the protrusion 251 is not located within the recess 241, the protrusion 251 pushes the first lower mold slider 24 upward, thereby causing the molding component 3 to lift the product 4 upward to achieve separation.

[0047] The second lower mold slider 25 moves until the protrusion 251 is exactly inside the recess 241, and the first lower mold slider 24 does not contact the molding component 3.

[0048] In this embodiment, as Figures 4 to 10 As shown, the push assembly 2 includes a slider fixing seat 21, an upper mold push block 22, a sliding pin 23, a first lower mold slider 24, and a second lower mold slider 25. Through the cooperation of the upper mold push block 22 and the sliding pin 23, when the upper mold push block 22 moves upward along the movable channel 211, the sliding pin 23 drives the slider fixing seat 21 to move to one side (e.g., to the right). The protrusion 251 of the second lower mold slider 25 pushes the first lower mold slider 24 upward, causing the product 4 on the molding assembly 3 to separate from the molding assembly 3. When the upper mold push block 22 moves downward along the movable channel 211, the sliding pin 23 presses the slider fixing seat 21, causing it to move to the other side (e.g., to the left). The second lower mold slider 25 moves until its protrusion 251 is exactly within the first recess 241 of the first lower mold slider 24, and the first lower mold slider 24 is no longer pushed up, thus preventing the first lower mold slider 24 from contacting the molding assembly 3.

[0049] Furthermore, the upper mold push block 22 includes a first connecting segment 222, a bending segment 221, and a second connecting segment 223. The first connecting segment 222 extends vertically downward, and the end of the first connecting segment 222 bends to one side to form the bending segment 221. The end of the bending segment 221 extends vertically downward to form the second connecting segment 223.

[0050] The active channel 211 includes a first segment 2112, a bent segment 2111, and a second segment 2113. The first segment 2112 extends vertically downward, and the end of the first segment 2112 is bent to one side to form the bent segment 2111. The bent segment 2111 has the same bending direction as the bent segment 221, and the end of the bent segment 2111 extends vertically downward to form the second segment 2113.

[0051] The upper die push block 22 is elongated and consists of two vertical first connecting sections 222 and 223, and a middle bent section 221. Typically, the end of the first connecting section 222 bends to the right to form the bent section 221, and the bent section 221 is relatively short. The movable channel 211 also includes two vertical first sections 2112 and 2113, and a middle bent section 2111. The bent section 2111 also bends to the right. The two sliding pins 23 are positioned at the two bent sections 2111 on both sides of the upper die push block 22. When the upper die push block 22 moves within the movable channel 211, the bent section 221 of the upper die push block 22 moves to the vicinity of the bent section 2111, which will press the sliding pins 23 and drive the slider fixing seat 21 to move. The overall structure is simple and the driving effect is good.

[0052] Furthermore, the second lower die slider 25 is provided with at least two protrusions 251, and the lower end of the first lower die slider 24 is provided with at least two recesses 241. In this way, the lifting effect of the two protrusions 251 is better and more stable, and the first lower die slider 24 is provided with a corresponding number of recesses 241. Typically, the protrusions 251 can be trapezoidal in shape, and the recesses 241 at the bottom of the first lower die slider 24 are also trapezoidal in shape.

[0053] Furthermore, the first ejector assembly 5 includes a first ejector rod 51 and a first elastic element 52. The top end of the first ejector rod 51 is connected to the bottom end of the molding assembly 3, and the bottom end of the first ejector rod 51 is provided with the first elastic element 52. After mold opening, the first elastic element 52 is no longer compressed and extends upward, that is, the first elastic element 52 pushes the top end of the first ejector rod 51 upward, and then the molding assembly 3 is lifted by the first ejector rod 51 to achieve demolding of the product 4.

[0054] Furthermore, it also includes a second ejection assembly 6, which is movably disposed within the lower mold 1, and the second ejection assembly 6 is provided on at least one side of the first ejection assembly 5;

[0055] The second ejection assembly 6 includes a second ejector rod 61, a second elastic element 62, and a float 63. The float 63 is connected to the bottom end of the forming assembly 3. At least one second ejector rod 61 is provided at the bottom end of the float 63, and the second elastic element 62 is provided at the bottom end of the second ejector rod 61.

[0056] In this embodiment, to ensure smooth demolding of product 4, when product 4 is lifted from the molding assembly 3, in addition to the ejection of the first ejection assembly 5, a second ejection assembly 6 is also provided to eject simultaneously. Typically, two sets of the second ejection assembly 6 are provided on both sides of the first ejection assembly 5; in other embodiments, this can be adjusted to one or more sets. Specifically, after mold opening, the second elastic element 62 is no longer compressed and extends upwards. The second elastic element 62 pushes the second ejector rod 61 at its top upwards, and then the second ejector rod 61 pushes the float 63 upwards, thus lifting the molding assembly 3 to achieve demolding of product 4. Typically, each float 63 can be simultaneously lifted by three second ejector rods 61 with second elastic elements 62. In other embodiments, the second ejector rods 61 can be added or removed adaptively according to actual conditions.

[0057] In particular, this utility model also proposes a stamping die including the aforementioned ejection device. Since the stamping die includes the aforementioned ejection device, it has the same beneficial effects as the aforementioned ejection device, which will not be elaborated further here.

[0058] Furthermore, such as Figures 1 to 5 As shown, the stamping die also includes the forming component 3 and the upper die forming punch component 7. The upper die forming punch component 7 is movably disposed on the lower die 1. The upper die forming punch component 7 is used to stamp and form the product 4 in the forming component 3.

[0059] Further, the molding component 3 includes a first molding die 31, a die pad 32, a second molding die 33, a molding core 34, and a pin 35. The first molding die 31 is disposed on the die pad 32. The outer diameter of the first end 331 of the second molding die 33 is greater than the outer diameter of the second end 332 of the second molding die 33. The upper end of the first end 331 is inserted into the first molding die 31, and the lower end of the first end 331 and the upper end of the second end 332 are inserted into the die pad 32. The molding core 34 is disposed in the second molding die 33, and the pin 35 connects the molding core 34, the second molding die 33, and the die pad 32.

[0060] The pusher assembly 2 is used to push the molding core 34 upward so that the product 4 is separated from the first molding die 31;

[0061] The first ejection component 5 is used to push the molding core 34 and the second molding die 33 upward to eject the product 4 from the molding component 3 and achieve demolding.

[0062] The molding core 34, the second molding die 33, and the die pad 32 in the molding assembly 3 are fixed by a pin 35. The molding core 34 is located inside the second molding die 33. When the push assembly 2, the first ejection assembly 5 (and the second ejection assembly 6) move, they all push the molding core 34 and the second molding die 33 upward simultaneously. Normally, the top end of the first ejector rod 51 abuts against the molding core 34, and the top end of the float 63 abuts against the second molding die 33.

[0063] Furthermore, the upper die forming punch assembly 7 includes an upper die 71, an upper die forming punch 72, an upper die ejector 73, and a third elastic element 74. The upper die 71 is movably disposed above the lower die 1, and the upper die forming punch 72 and the upper die push block 22 are both connected to the upper die 71.

[0064] The upper mold 71 is provided with at least one upper mold ejector rod 73, and the top end of the upper mold ejector rod 73 is provided with the third elastic element 74. When the upper mold 71 drives the upper mold ejector rod 73 to move downward, the bottom end of the upper mold ejector rod 73 passes through the lower mold 1 and abuts against the float block 63.

[0065] The stamping die closing and cutting process specifically includes: when the upper die 71 and the lower die 1 close, the upper die forming punch 72 moves downward and the upper die push block 22 also moves downward. Under the drive of the sliding pin 23, the upper die push block 22 moves to one side to the position where the protrusion 251 of the second lower die slide 25 and the recess 241 of the first lower die slide 24 meet, so that the first lower die slide 24 does not contact the forming core 34, and the product 4 is cut and formed. In addition, the compression of the second elastic element 62 below the second ejector rod 61 is achieved by the cooperation of the upper die ejector rod 73 and the third elastic element 74. Specifically, when the upper die 71 drives the upper die ejector rod 73 to move downward, the bottom end of the upper die ejector rod 73 will pass through the lower die 1 and abut against the float 63 to press the float 63 and the second elastic element 62 below the second ejector rod 61 together.

[0066] The specific process of demolding product 4 after the stamping die is opened includes: when the die is opened, the upper die forming punch 72 and the upper die push block 22 move upward together. Driven by the sliding pin 23, the slider fixing seat 21 moves to the other side. The protrusion of the second lower die slider 25 pushes the first lower die slider 24 upward, so that product 4 on the forming core 34 will not stick to the first forming die 31. Then, under the action of the first elastic element 52 and the second elastic element 62, the first ejector rod 51 and the second ejector rod 61 together push the forming core 34 and the second forming die 33 upward, and product 4 smoothly slides out of the die to complete demolding.

[0067] Typically, each float 63 is pressed together by two upper mold ejector pins 73 with third elastic elements 74 on the left and right. The first elastic element 52, the second elastic element 62, and the third elastic element 74 are all preferably springs.

[0068] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An ejection device, characterized in that Comprise: Lower die (1); Pushing assembly (2) movably arranged on the lower die (1), the pushing assembly (2) is used for pushing the product (4) on the forming assembly (3) to separate the product (4) from the forming assembly (3); The first ejection assembly (5) is movably arranged in the lower die (1), the first ejection assembly (5) is used for ejecting the product (4) from the forming assembly (3) to realize demolding.

2. A device according to claim 1, wherein The pushing assembly (2) comprises a slider fixing seat (21), an upper die pushing block (22), a sliding pin (23), a first lower die slider (24) and a second lower die slider (25), the slider fixing seat (21) is provided with a movable channel (211) for the upper die pushing block (22) to move up and down, the middle part of the upper die pushing block (22) is bent to one side to form a bent section (221), the movable channel (211) comprises a corresponding bending section (2111), the bending section (2111) is provided with the sliding pin (23), the second lower die slider (25) is connected with the slider fixing seat (21), the first lower die slider (24) is arranged above the second lower die slider (25), and a plurality of protruding portions (251) are arranged on the second lower die slider (25), the bottom end of the first lower die slider (24) is provided with a plurality of corresponding recessed portions (241), when the upper die pushing block (22) moves to the bending section (221) through the sliding pins (23) on both sides, the slider fixing seat (21) and the second lower die slider (25) are pushed to move in the horizontal direction, so that: The second lower die slider (25) moves to the protruding portion (251) which is not located in the recessed portion (241), the protruding portion (251) pushes up the first lower die slider (24) to drive the forming assembly (3) to push up the product (4) to realize separation; The second lower die slider (25) moves to the protruding portion (251) which is just located in the recessed portion (241), the first lower die slider (24) does not contact with the forming assembly (3).

3. A device according to claim 2, wherein The upper die pushing block (22) comprises a first connecting section (222), the bent section (221) and a second connecting section (223), the first connecting section (222) extends vertically downward, and the end of the first connecting section (222) is bent to one side to form the bent section (221), the end of the bent section (221) extends vertically downward to form the second connecting section (223); The movable channel (211) comprises a first section (2112), the bending section (2111) and a second section (2113), the first section (2112) extends vertically downward, the end of the first section (2112) is bent to one side to form the bending section (2111), the bending direction of the bending section (2111) is the same as that of the bent section (221), and the end of the bending section (2111) extends vertically downward to form the second section (2113).

4. A device according to claim 2, wherein The second lower die sliding block (25) is provided with at least two protrusions (251), and the lower end of the first lower die sliding block (24) is provided with at least two recesses (241).

5. A device according to claim 1 or 2, c h a r a c t e r i z e d in that The first ejection assembly (5) comprises a first ejector rod (51) and a first elastic member (52), the top end of the first ejector rod (51) is connected with the bottom end of the forming assembly (3), and the bottom end of the first ejector rod (51) is provided with the first elastic member (52).

6. A device according to claim 5, wherein The first ejection assembly (5) is provided with the second ejection assembly (6) on at least one side. The second ejection assembly (6) comprises a second ejector rod (61), a second elastic member (62) and a float (63), the float (63) is connected with the bottom end of the forming assembly (3), the bottom end of the float (63) is provided with at least one second ejector rod (61), and the bottom end of the second ejector rod (61) is provided with the second elastic member (62).

7. A stamping die characterized by, The ejection device comprises the ejection device according to claim 6.

8. A stamping die according to claim 7, wherein The stamping die further comprises the forming assembly (3) and an upper die forming punch assembly (7), the upper die forming punch assembly (7) is movably arranged on the lower die (1), and the upper die forming punch assembly (7) is used for stamping forming the product (4) in the forming assembly (3).

9. The stamping die of claim 7, wherein, The forming assembly (3) comprises a first forming female die (31), a female die cushion block (32), a second forming female die (33), a forming core (34) and a pin (35), the first forming female die (31) is arranged on the female die cushion block (32), the outer diameter of the first end (331) of the second forming female die (33) is greater than the outer diameter of the second end (332) of the second forming female die (33), the upper end of the first end (331) is inserted into the first forming female die (31), the lower end of the first end (331) and the upper end of the second end (332) are inserted into the female die cushion block (32), the forming core (34) is arranged in the second forming female die (33), and the pin (35) connects the forming core (34), the second forming female die (33) and the female die cushion block (32). The push-eject assembly (2) is used for pushing up the forming core (34) to separate the product (4) from the first forming female die (31). The first ejection assembly (5) is used for lifting up the forming core (34) and the second forming female die (33) to eject the product (4) from the forming assembly (3) to realize demolding.

10. The stamping die of claim 8, wherein, The upper die forming punch assembly (7) comprises an upper die (71), an upper die forming punch (72), an upper die ejector rod (73) and a third elastic member (74), the upper die (71) is movably arranged above the lower die (1), the upper die forming punch (72) and the upper die push block (22) are both connected with the upper die (71). The upper die (71) is provided with at least one upper die ejector rod (73), the top end of the upper die ejector rod (73) is provided with the third elastic member (74), when the upper die (71) drives the upper die ejector rod (73) to move downwards, the bottom end of the upper die ejector rod (73) penetrates through the lower die (1) and abuts against the floating block (63).

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