CN221018187U

CN221018187U - Material belt type continuous stamping die flange edge leveling structure

Info

Publication number: CN221018187U
Application number: CN202322815885.8U
Authority: CN
Inventors: 余月华; 骆永金; 骆惠涛; 蓝世宝
Original assignee: Huizhou Sanxiao Intelligent Technology Co ltd
Current assignee: Huizhou Sanxiao Intelligent Technology Co ltd
Priority date: 2023-10-19
Filing date: 2023-10-19
Publication date: 2024-05-28
Anticipated expiration: 2033-10-19

Abstract

The utility model discloses a flange edge flattening structure of a material belt type continuous stamping die, which comprises a lower die and an upper die, wherein the lower die comprises a lower die holder component, a lower flattening die set and a plurality of flattening ejector pins, the lower flattening die set is arranged on the lower die holder component, the plurality of flattening ejector pins are arranged on the lower die holder component along the X direction and vertically and upwardly exposed out of the lower flattening die set after respectively penetrating through the lower flattening die set, the upper die comprises an upper die holder component, an upper die mounting component and a flattening upper die, the upper die mounting component is fixed on the upper die holder component, the flattening upper die is fixed on the upper die mounting component, a plurality of flattening holes opposite to the flattening ejector pins are sequentially arranged on the flattening upper die along the X direction, and sequentially comprise a pre-flattening hole, an inclined flattening hole and a negative clearance flattening hole.

Description

Material belt type continuous stamping die flange edge leveling structure

Technical Field

The utility model relates to the technical field of relay sleeve stamping dies, in particular to a flange edge leveling structure of a material belt type continuous stamping die.

Background

The new energy automobile is an automobile using novel energy to replace traditional fuel, mainly comprises a pure electric automobile, a plug-in hybrid electric automobile and the like, has the characteristics of environmental protection, energy conservation and reproducibility, has important significance for reducing air pollution and relieving energy pressure, and gradually expands the market of the new energy automobile along with the continuous development of technology and the support of government, and becomes an important development direction of the automobile industry.

In the new energy automobile, the stainless steel sealing sleeve of the new energy automobile relay is a sealing device for protecting the new energy automobile relay, has the functions of high temperature resistance and corrosion resistance, can effectively protect the relay, prevents the relay from being corroded and damaged by external environment, water vapor, dust and the like, and can be used for fixing the relay and avoiding the relay from loosening or falling off in vibration.

In the production process of the stainless steel sealing sleeve, complex stamping, heat treatment and other processes are needed, wherein after the stamping, stretching and forming of the sleeve are finished, the flange edge of the sleeve is required to be flattened, and as the flange edge of the sleeve still has larger stress after the stretching and forming, the flange edge of the sleeve is tilted, and at present, the sleeve which is stretched and formed is usually subjected to heat treatment to eliminate the stress and then flattened, the steps are complicated and the continuity is low, so that the production efficiency is low.

Disclosure of utility model

Aiming at the defects in the prior art, the utility model provides a flange edge leveling structure of a material belt type continuous stamping die, which comprises the following components:

The lower die comprises a lower die holder component, a lower leveling die set and a plurality of leveling ejector pins, wherein the lower leveling die set is arranged on the lower die holder component, and the plurality of leveling ejector pins are arranged on the lower die holder component along the X direction and respectively vertically and upwards expose out of the lower leveling die set after penetrating through the lower leveling die set; and

The upper die is arranged above the lower die and comprises an upper die seat assembly, an upper die installation assembly and a leveling upper die, the upper die installation assembly is fixed on the upper die seat assembly, the leveling upper die is fixed on the upper die installation assembly, a plurality of leveling holes opposite to the leveling thimble are sequentially formed in the leveling upper die along the X direction, the plurality of leveling holes sequentially comprise a pre-leveling hole, an inclination leveling hole and a negative clearance leveling hole, a pre-leveling plane is arranged around the opening of the pre-leveling hole and is flush with the lower surface of the leveling upper die, a leveling inclined plane is arranged between the inclination leveling hole and the lower surface of the leveling upper die, an included angle beta is formed between the leveling inclined plane and the lower surface of the leveling upper die, a negative clearance plane is arranged around the opening of the negative clearance leveling hole and protrudes out of the lower surface of the leveling upper die along the direction of the lower die, and a space is formed between the negative clearance plane and the lower surface of the leveling upper die.

According to one embodiment of the utility model, the lower die further comprises a plurality of lower die elastic components, the plurality of lower die elastic components are arranged on the lower die base component, the lower leveling module is arranged on the lower die elastic components, a plurality of through holes are formed in the lower leveling module corresponding to the leveling holes, and the leveling thimble is fixed on the lower die base component and is positioned in the through holes.

According to one embodiment of the utility model, the upper die further comprises a first stripping component, the upper die mounting component is provided with a plurality of first mounting cavities along the X direction, the plurality of first mounting cavities are respectively opposite to and communicated with the plurality of clapping holes, the first stripping component is positioned in the first mounting cavities, one end of the first stripping component is fixed on the upper die base component, and the other end of the first stripping component is positioned in the clapping holes.

According to one embodiment of the utility model, the first stripping component comprises a first stripping elastic piece and a stripping ejector rod, wherein the first stripping elastic piece is arranged in the first mounting cavity, one end of the first stripping elastic piece is fixed on the upper die holder component, one end of the stripping ejector rod is arranged in the first mounting cavity and connected with the first stripping elastic piece, and the other end of the stripping ejector rod extends into the leveling hole.

According to one embodiment of the utility model, the leveling upper die is provided with a blanking hole, the blanking hole is positioned between the pre-leveling hole and the slope leveling hole, two sides of the blanking hole opening are provided with blanking punches, the blanking punches face the lower die to be protruded on the lower surface of the leveling upper die, and the lower leveling die set is provided with blanking through holes corresponding to the blanking holes.

According to one embodiment of the utility model, the upper die further comprises a second stripping assembly, the upper die mounting assembly is provided with a second mounting cavity corresponding to the blanking hole, the second stripping assembly is arranged in the second mounting cavity, one end of the second stripping assembly is fixed on the upper die base assembly, and the other end of the second stripping assembly is positioned in the blanking hole.

According to one embodiment of the utility model, the second stripping component comprises a second stripping elastic piece and a second stripping ejector rod, wherein the second stripping elastic piece is arranged in the second mounting cavity, one end of the second stripping elastic piece is fixed in the upper die base component, one end of the second stripping ejector rod is positioned in the second mounting cavity and connected with one end of the second stripping elastic piece, and the other end of the second stripping ejector rod extends into the blanking hole.

According to one embodiment of the utility model, the upper die further comprises a material detection assembly, the leveling upper die is further provided with a communication hole, the communication hole is positioned between the slope leveling hole and the negative gap leveling hole, the upper die base assembly is provided with a third mounting cavity corresponding to the communication hole, the lower leveling die set is provided with a detection hole corresponding to the communication hole, the material detection assembly is arranged in the third mounting cavity, one end of the material detection assembly is fixed in the upper die base assembly, and the material detection assembly is exposed out of the leveling upper die through the communication hole and is opposite to the detection hole.

According to one embodiment of the utility model, the material detecting assembly comprises a material detecting elastic piece and a material detecting rod, wherein the material detecting elastic piece is arranged in the third mounting cavity, one end of the material detecting elastic piece is fixed in the upper die seat assembly, one end of the material detecting rod is arranged in the third mounting cavity and is connected with one end of the material detecting elastic piece, and the other end of the material detecting rod penetrates through the communication hole to be exposed out of the clapping upper die and is opposite to the detection hole.

According to one embodiment of the utility model, the lower die holder assembly is provided with a plurality of mounting positions, the lower die elastic assembly comprises a lower die elastic piece and a lower die supporting rod, the lower die elastic piece is arranged in the mounting positions, one end of the lower die supporting rod is fixed in the lower die elastic piece, and the lower leveling die set is fixed at the other end of the lower die supporting rod.

In this example, through setting up in advance and clapping hole, inclination clapping hole and negative clearance clapping hole on clapping the upper die, during operation sleeve is along with the motion of material area and is passed through in proper order and claps hole, inclination clapping hole and negative clearance clapping hole in advance, and its flange limit is through clapping plane in advance, clapping inclined plane and the planar clapping of negative clearance in proper order, eliminates its flange limit inside stress, makes its flange limit keep the level better to improve the yields of product, reduce processing step simultaneously, improve production efficiency.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

FIG. 1 is a schematic structural view of a flange edge leveling structure of a continuous belt-type stamping die in an embodiment;

FIG. 2 is a schematic diagram of the upper die structure in an embodiment;

FIG. 3 is a schematic diagram of a lower die structure in an embodiment;

FIG. 4 is an enlarged view of portion A of FIG. 2;

Fig. 5 is an enlarged view of a portion B in fig. 2.

Detailed Description

Various embodiments of the utility model are disclosed in the following drawings, in which details of the practice are set forth in the following description for the purpose of clarity. However, it should be understood that these practical details are not to be taken as limiting the utility model. That is, in some embodiments of the utility model, these practical details are unnecessary. Moreover, for the purpose of simplifying the drawings, some conventional structures and components are shown in the drawings in a simplified schematic manner.

In addition, the descriptions of the "first," "second," and the like, herein are for descriptive purposes only and are not intended to be specifically construed as order or sequence, nor are they intended to limit the utility model solely for distinguishing between components or operations described in the same technical term, but are not to be construed as indicating or implying any relative importance or order of such features. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Referring to fig. 1 to 5, fig. 1 is a schematic structural view of a flange edge leveling structure of a continuous belt-type stamping die according to an embodiment, fig. 2 is a schematic structural view of an upper die according to an embodiment, fig. 3 is a schematic structural view of a lower die according to an embodiment, fig. 4 is an enlarged view of a portion a in fig. 2, and fig. 5 is an enlarged view of a portion B in fig. 2. The flange edge leveling structure of the material belt type continuous stamping die in the embodiment comprises: the lower die 1 and the upper die 2, wherein, lower die 1 includes die holder subassembly 11, lower clapping module 12 and a plurality of clapping thimble 13, lower clapping module 12 is located on the die holder subassembly 11, a plurality of clapping thimble 13 locate the die holder subassembly 11 along the X direction, and vertically upwards expose outside clapping module 12 after passing down clapping module 12 respectively, upper die 2, locate lower die 1 top, it includes upper die holder subassembly 21, upper die installation component 22 and clapping upper die 23, upper die installation component 22 is fixed in upper die holder subassembly 11, clapping module 23 is fixed in upper die installation component 22, along the X direction, clapping upper die 23 is equipped with a plurality of clapping holes 231 just facing clapping thimble 13 in proper order, a plurality of clapping holes 231 include in proper order and are clapped holes 2311, the slope clapping plane 2312 and negative clearance clapping hole 2313, be equipped with around the mouth of clapping hole 2311 in advance, the lower surface parallel and level of clapping upper die 23, the slope is equipped with the slapping surface of clapping upper die 23 between the upper die installation component 22 and the upper die 23, the slope of clapping upper die 23 has the slope of clapping surface 35 between the slope of clapping upper die 23 and the upper die 23, the slope of clapping surface 35 has the slope between the slope of clapping surface of clapping upper die 23 to the slope of the lower die 23.

In use, the lower die 1 and the upper die 2 are installed in the stamping equipment, the upper die 2 is located above the lower die 1 and moves towards the lower die 1, in operation, the material strip is stretched by the front stretching process in the stamping equipment to form a sleeve 0 with a flange edge, and between the lower die 1 and the upper die 2 of the flange edge leveling structure, the sleeve 0 sequentially passes through the pre-leveling hole 2311, the inclined leveling hole 2312 and the negative clearance leveling hole 2313 along with the movement of the material strip, the stamping equipment moves the upper die 2 towards the lower die 1, in the process, the sleeve 0 enters the leveling hole 231, the leveling thimble 13 abuts the sleeve 0 on the inner wall of the leveling hole 231 to keep the stability of the sleeve 0, the pre-leveling plane 23111 of the pre-leveling hole 2312 and the upper surface of the lower leveling module 12 jointly squeeze the flange edge of the sleeve 0 along with the continuous downward movement of the upper die 2, so that the flange edge of the sleeve 0 is flattened, there is still a large stress in the flange edge of the sleeve 0 so that the flange edge has a tendency to bend upward, then the sleeve 0 moves to the lower side of the inclined flat hole 2312 along with the movement of the material belt, the upper die 2 moves toward the lower die 1 again, in the process, the flat inclined surface 23121 of the inclined flat hole 2312 presses the flange edge to bend downward, thereby counteracting the stress in the flange edge and preventing the flange edge from bending upward, after the sleeve 0 is flattened by the inclined flat hole 2312, the sleeve 0 moves to the lower side of the gap flat hole 2313 again along with the movement of the material belt, the upper die 2 moves toward the lower die 1 again, in the process, the negative gap plane 23131 of the negative gap flat hole 2313 and the upper surface of the lower flat die set 12 press the flange edge of the sleeve 0 again, and further press the flange edge of the sleeve 0 to be flat, namely, in the present example, the flange edge of the sleeve 0 sequentially passes through the pre-flat plane 23111, after the bevel 23121 and the negative clearance plane 23131 are flattened, the internal stress of the flange edge is eliminated, so that the flange edge is kept flat better, the yield of products is improved, the processing steps are reduced, and the production efficiency is improved.

Specifically, when each of the clapping surfaces presses the flange edge of the sleeve, a gap is formed between the lower surface of the clapping upper die 23 and the upper surface of the lower clapping module 12, and the distance of the gap is consistent with the thickness of the material belt, so it can be understood that the gap between the pre-clapping surface 23111 and the lower clapping module 12 is equal to the thickness of the material belt, and the gap between the negative clearance surface 23131 and the upper surface of the lower clapping module 12 is smaller than the thickness of the material belt.

Referring back to fig. 1 and 3, further, the lower die 1 further includes a plurality of lower die elastic assemblies 14, the plurality of lower die elastic assemblies 14 are disposed on the lower die holder assembly 11, the lower leveling module 12 is disposed on the lower die elastic assemblies 14, a plurality of through holes 121 are disposed on the lower leveling module 12 corresponding to the leveling holes 231, the leveling thimble 13 is fixed on the lower die holder assembly 11 and is located in the through holes 121, wherein the lower die holder assembly 11 has a plurality of mounting positions 111, the lower die elastic assemblies 14 include a lower die elastic member 141 and a lower die supporting rod 142, the lower die elastic member 141 is disposed in the mounting positions 111, one end of the lower die supporting rod 142 is fixed in the lower die elastic member 141, and the leveling lower die 12 is fixed at the other end of the lower die supporting rod 142. Thus, in the initial state, the leveling ejector rod 13 is located in the lower leveling module 12 to keep the upper surface of the lower leveling module 12 flat, so that the smoothness of the movement of the material belt is improved, when the upper die 2 is used for pressing the lower die 1 down, the lower leveling module 12 is used for downwards extruding the lower die elastic component 14 and enabling the lower die elastic component 141 to shrink, at the moment, the leveling ejector rod 13 can be exposed outside the lower leveling module 12, the leveling ejector rod 13 can enable the sleeve 0 to be propped into the leveling hole 231, after the leveling of the flange edge is completed, the upper die 2 is reset upwards, the pressure borne by the lower die 1 is eliminated, the lower die elastic component 141 is used for upwards pushing the lower die supporting rod 142, and the lower leveling module 12 is reset upwards, and the leveling ejector rod 13 can be retracted into the lower leveling module 12 again. In this example, the lower die elastic member 141 is a spring.

Referring back to fig. 1-2, further, the upper die 1 further includes a first stripping component 24, the upper die mounting component 22 has a plurality of first mounting cavities 221 along the X direction, the plurality of first mounting cavities 221 are respectively opposite to and communicated with the plurality of clapping holes 231, the first stripping component 24 is located in the mounting cavities 221, one end of the first stripping component is fixed to the upper die holder component 11, and the other end of the first stripping component is located in the clapping holes 231.

The first stripping assembly 24 includes a first stripping elastic member 241 and a stripping rod 242, wherein the stripping elastic member 241 is disposed in the first mounting cavity 221, one end of the stripping elastic member 241 is fixed to the upper die holder assembly 21, one end of the stripping rod 242 is disposed in the first mounting cavity 221 and connected to the stripping elastic member 241, and the other end extends into the leveling hole 231. When the upper die 1 is used for pressing down the die 2, the sleeve 0 enters the flattening hole 231, the flattening ejector pin 231 pushes the sleeve 0 to continuously enter the flattening hole 231 along with the continuous pressing down of the upper die 1, the first stripping elastic piece 241 is extruded and compressed in the process, when the upper die 1 is reset upwards, the first stripping elastic piece 241 pushes the stripping ejector rod 242 out towards the flattening hole 241, and the sleeve 0 is pushed out of the flattening hole 231, so that the sleeve 0 can be effectively prevented from being clamped in the flattening hole 231, and the production stability is further improved. In particular, the first stripping elastic 241 may be a nitrogen spring.

Referring back to fig. 1-2, preferably, the leveling upper die 23 is provided with a blanking hole 232, the blanking hole 232 is located between the pre-leveling hole 2311 and the slope leveling hole 2312, two sides of the opening of the blanking hole 232 are provided with blanking punches 2321, the blanking punches 2321 protrude towards the lower die 11 to the lower surface of the upper leveling die 23, and the lower leveling die set 12 is provided with blanking through holes 122 corresponding to the blanking holes 232. The flange of the sleeve 0 moves below the blanking hole 232 after the pre-flattening process, along with the movement of the upper die 1 towards the lower die 2, the sleeve 0 enters the blanking hole 232, the surrounding material of the flange is located on the moving path of the blanking punch 2321, the blanking punch 2321 cuts off a part of the material of the connecting part of the flange periphery of the sleeve 0 and the material belt under the stamping of the upper die 1, after cutting off, the stress of the connecting part of the flange and the material belt is further reduced, and therefore the flattening inclined plane 23121 is further eliminated, and the upward bending trend of the flange is eliminated.

Referring back to fig. 1-2, further, the upper die 2 further includes a second stripping assembly 25, the upper die mounting assembly 22 is provided with a second mounting cavity 222 corresponding to the blanking hole 232, the second stripping assembly 25 is disposed in the second mounting cavity 222, one end of the second stripping assembly 25 is fixed on the upper die holder assembly 21, the other end of the second stripping assembly is disposed in the blanking hole 232, the second stripping assembly 25 includes a second stripping elastic member 251 and a second stripping ejector rod 252, the second stripping elastic member 251 is disposed in the second mounting cavity 222, one end of the second stripping elastic member 251 is fixed on the upper die holder assembly 21, one end of the second stripping ejector rod 252 is disposed in the second mounting cavity 222 and is connected to one end of the second stripping elastic member 251, and the other end of the second stripping elastic member extends into the blanking hole 232. Similarly, the second stripping assembly 25 is used for preventing the sleeve from being blocked in the blanking hole 232, which is not described herein. In particular, the second stripping elastic 251 may be a spring.

Preferably, the upper die 2 further includes a material detecting assembly 26, the leveling upper die 23 is further provided with a communication hole 233, the communication hole 233 is located between the slope leveling hole 2312 and the negative gap leveling hole 2313, the upper die holder assembly 21 is provided with a third mounting cavity 223 corresponding to the communication hole 233, the lower leveling die set 12 is provided with a detecting hole 123 corresponding to the communication hole 233, the material detecting assembly 26 is disposed in the third mounting cavity 223, and one end of the material detecting assembly 26 is fixed to the upper die holder assembly 21, is exposed out of the leveling upper die 23 through the communication hole 233 and is opposite to the detecting hole 123.

The material detecting assembly 26 includes a material detecting elastic member 261 and a material detecting rod 262, the material detecting elastic member 261 is disposed in the third mounting cavity 223, one end of the material detecting elastic member 261 is fixed in the upper die holder assembly 21, one end of the material detecting rod 262 is disposed in the third mounting cavity 223 and connected with one end of the material detecting elastic member 261, and the other end of the material detecting rod passes through the communication hole 233 to be exposed out of the clapping upper die 22 and is opposite to the detecting hole 123.

When the upper die 1 presses down the lower die 2, if a material strip exists between the upper die 1 and the lower die 2, the material detecting rod 262 abuts against the material strip and compresses the material detecting elastic piece 261, so that the material detecting rod 262 is retracted into the third mounting cavity 223, otherwise, if no material strip exists between the upper die 1 and the lower die 2, the material detecting rod 262 enters the material detecting hole 123 when the upper die 1 presses down the lower die 2, and at this time, the device can send out an alarm to inform workers of material supplement or material strip detection.

In this case, through setting up in advance the hole of clapping, inclination clapping hole and negative clearance clapping hole on clapping, during operation sleeve moves along with the material area and passes through the hole of clapping in advance, inclination clapping hole and negative clearance clapping hole in proper order, its flange limit is through clapping plane in advance, clapping inclined plane and the planar clapping of negative clearance in proper order, eliminates its flange limit inside stress, makes its flange limit keep the level well to improve the yields of product, reduce processing step simultaneously, improve production efficiency.

The foregoing is merely exemplary of the present utility model and is not intended to limit the present utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, or the like, which is within the spirit and principles of the present utility model, should be included in the scope of the claims of the present utility model.

Claims

1. The utility model provides a flange limit of continuous stamping die of material belt structure of clapping which characterized in that includes:

The lower die (1) comprises a lower die holder assembly (11), a lower leveling die set (12) and a plurality of leveling ejector pins (13), wherein the lower leveling die set (12) is arranged on the lower die holder assembly (11), and the plurality of leveling ejector pins (13) are arranged on the lower die holder assembly (11) along the X direction and vertically upwards exposed out of the lower leveling die set (12) after respectively penetrating through the lower leveling die set (12); and

The upper die (2) is arranged above the lower die (1), the upper die comprises an upper die holder assembly (21), an upper die installation assembly (22) and a leveling upper die (23), the upper die installation assembly (22) is fixed on the upper die holder assembly (21), the leveling upper die (23) is fixed on the upper die installation assembly (22), a plurality of leveling holes (231) which are opposite to the leveling thimble (13) are sequentially formed in the leveling upper die (23) along the X direction, the leveling holes (231) sequentially comprise pre-leveling holes (2311), slope leveling holes (2312) and negative clearance leveling holes (2313), pre-leveling planes (23111) are arranged around the opening of the pre-leveling holes (2311), leveling slopes (23121) are formed between the slope leveling holes (2312) and the lower surface of the leveling upper die (23), a negative clearance (35) is formed between the slope leveling holes (23125) and the lower surface of the leveling upper die (23), and the negative clearance leveling holes (2313) are formed between the negative clearance leveling holes (2313) and the upper die (23), and the negative clearance (35) is formed between the negative clearance leveling holes (2311) and the lower surface of the leveling upper die (23).

2. The flange edge flattening structure of a continuous belt punching die according to claim 1, wherein the lower die (1) further comprises a plurality of lower die elastic assemblies (14), the plurality of lower die elastic assemblies (14) are arranged on the lower die base assembly (11), the lower flattening die set (12) is arranged on the lower die elastic assemblies (14), a plurality of through holes (121) are arranged on the lower flattening die set (12) corresponding to the flattening holes (231), and the flattening ejector pins (13) are fixed on the lower die base assembly (11) and are positioned in the through holes (121).

3. The flange edge flattening structure of a continuous stamping die according to claim 1, wherein the upper die (2) further comprises a first stripping component (24), the upper die mounting component (22) is provided with a plurality of first mounting cavities (221) along the X direction, the plurality of first mounting cavities (221) are respectively opposite to and communicated with the plurality of flattening holes (231), the first stripping component (24) is positioned in the first mounting cavities (221), one end of the first stripping component is fixed in the upper die holder component (21), and the other end of the first stripping component is positioned in the flattening holes (231).

4. A flange edge flattening structure of a continuous strip stamping die according to claim 3, wherein the first stripping assembly (24) comprises a first stripping elastic member (241) and a stripping ejector rod (242), the first stripping elastic member (241) is arranged in the first mounting cavity (221), one end of the first stripping elastic member is fixed on the upper die base assembly (21), one end of the stripping ejector rod (242) is arranged in the first mounting cavity (221) and is connected with the first stripping elastic member (241), and the other end of the stripping ejector rod extends into the flattening hole (231).

5. The flange edge flattening structure of a continuous belt punching die according to claim 1, wherein the flattening upper die (23) is provided with a blanking hole (232), the blanking hole (232) is located between the pre-flattening hole (2311) and the inclined flattening hole (2312), blanking punches (2321) are arranged on two sides of an opening of the blanking hole (232), the blanking punches (2321) face the lower die (1) to be protruded on the lower surface of the flattening upper die (23), and blanking through holes (122) are formed in the lower flattening die set (12) corresponding to the blanking holes (232).

6. The flange edge leveling structure of the continuous stamping die for strip material according to claim 5, wherein the upper die (2) further comprises a second stripping component (25), the upper die mounting component (22) is provided with a second mounting cavity (222) corresponding to the blanking hole (232), the second stripping component (25) is arranged in the second mounting cavity (222), one end of the second stripping component is fixed on the upper die base component (21), and the other end of the second stripping component is positioned in the blanking hole (232).

7. The flange edge leveling structure of the continuous belt die according to claim 6, wherein the second stripping assembly (25) includes a second stripping elastic member (251) and a second stripping ejector rod (252), the second stripping elastic member (251) is disposed in the second mounting cavity (222), one end of the second stripping elastic member is fixed to the upper die holder assembly (21), and one end of the second stripping ejector rod (252) is disposed in the second mounting cavity (222) and is connected to one end of the second stripping elastic member (251), and the other end extends into the blanking hole (232).

8. The flange edge flattening structure of a continuous belt punching die according to claim 1, wherein the upper die (2) further comprises a material detecting component (26), the flattening upper die (23) is further provided with a communication hole (233), the communication hole (233) is located between the inclined flattening hole (2312) and the negative clearance flattening hole (2313), the upper die holder component (21) is provided with a third mounting cavity (223) corresponding to the communication hole (233), the lower flattening module (12) is provided with a detecting hole (123) corresponding to the communication hole (233), the material detecting component (26) is arranged in the third mounting cavity (223), one end of the material detecting component is fixed on the upper die holder component (21), and the communication hole (233) is exposed out of the flattening upper die (23) and is opposite to the detecting hole (123).

9. The flange edge leveling structure of a continuous belt-type stamping die according to claim 8, wherein the material detecting assembly (26) comprises a material detecting elastic member (261) and a material detecting rod (262), the material detecting elastic member (261) is arranged in the third mounting cavity (223), one end of the material detecting elastic member is fixed in the upper die holder assembly (21), one end of the material detecting rod (262) is arranged in the third mounting cavity (223) and is connected with one end of the material detecting elastic member (261), and the other end of the material detecting rod penetrates out of the communication hole (233) to be exposed out of the leveling upper die (23) and is opposite to the detecting hole (123).

10. The flange edge leveling structure of a continuous belt punching die according to claim 2, wherein the lower die holder assembly (11) is provided with a plurality of mounting positions (111), the lower die elastic assembly (14) comprises a lower die elastic member (141) and a lower die supporting rod (142), the lower die elastic member (141) is arranged in the mounting positions (111), one end of the lower die supporting rod (142) is fixed in the lower die elastic member (141), and the lower leveling module (12) is fixed at the other end of the lower die supporting rod (142).