Stamping die for forming pole blank

Abstract

The utility model discloses a pole blank forming stamping die. The pole blank forming stamping die comprises an upper die assembly, a lower die assembly, a push plate and a driving mechanism. The upper die assembly comprises an upper die block and a plurality of male dies installed on the upper die block. The lower die assembly comprises a lower die block, a plurality of female die cavities and a plurality of discharging channels, the female die cavities and the discharging channels are arranged on the lower die block, locking sleeves are installed in the discharging channels, and the female die cavities and channels in the locking sleeves are communicated with each other and are coaxially arranged. The shape of the male die, the shape of the female die cavity and the shape of the channel in the locking sleeve are all matched with the shape of a copper-aluminum composite pole blank. The pushing plate is movably arranged below the discharging end of the locking sleeve, a plurality of discharging holes corresponding to the discharging end of the locking sleeve in position are formed in the pushing plate, scraping parts are arranged in the discharging holes, and the driving mechanism is used for driving the pushing plate to do translational motion. It is guaranteed that the preset face of the pole blank falling onto the linear conveyor faces upwards.

Description

Technical Field

[0001] This utility model relates to the technical field of battery terminal blank production equipment, and in particular to a terminal blank forming stamping die. Background Technology

[0002] For this type of product, due to the different physical properties of copper and aluminum, the current stamping method on the market is to stamp one pole blank with one die, which is inefficient. Therefore, a mode of stamping multiple dies with one die has been developed. However, this mode results in products with messy copper and aluminum surfaces after stamping (either copper or aluminum surface on top, upright or stacked). The products are too random, making them prone to damage, difficult to control in terms of quality, and inefficient. With the development of the new energy market, users have increasingly higher demands for product quantity and quality, and the current conventional production capacity can no longer meet their requirements. Utility Model Content

[0003] The purpose of this utility model is to design a stamping die for forming pole blanks in order to overcome the shortcomings of the above-mentioned technologies.

[0004] The present invention provides a stamping die for forming pole column blanks, comprising an upper die assembly, a lower die assembly, a push plate, and a drive mechanism.

[0005] The upper mold assembly includes an upper module and several punches mounted on the upper module; the lower mold assembly includes a lower module, several die cavities and several material feeding channels disposed on the lower module, a locking sleeve is installed in the material feeding channel, the channels in the die cavities and the locking sleeves are interconnected and coaxially arranged, and the shapes of the punches, the die cavities and the channels in the locking sleeves are all adapted to the shape of the copper-aluminum composite pole blank;

[0006] The push plate is movably disposed below the discharge end of the locking sleeve. The push plate is provided with a plurality of dropping holes corresponding to the position of the discharge end of the locking sleeve. A scraping part is provided in the dropping hole. The driving mechanism is used to drive the push plate to make translational movement, causing the scraping part to translate and scrape off the copper-aluminum composite pole blank that is completely exposed at the discharge end of the locking sleeve and located in the dropping hole.

[0007] According to the above-described stamping die for forming a pole blank, the blanking hole is an elongated hole and is arranged along the translational direction of the push plate, so that a blanking area and a scraping area are formed adjacently in the blanking hole. The scraping part is located in the middle or lower end of the scraping area, and the discharge end of the locking sleeve is at least partially located in the blanking hole. The scraping part is located below the end face of the discharge end of the locking sleeve. The scraping part is a plate structure connected to the inner wall of the scraping area on at least one side or a protruding structure protruding from the inner wall of the scraping area. When the copper-aluminum composite pole blank that is completely exposed at the discharge end of the locking sleeve is located in the blanking area, the scraping part is located beside the copper-aluminum composite pole blank.

[0008] According to the above-described stamping die for forming pole blanks, the blanking hole is a circular or square hole with an inner diameter larger than the outer diameter of the pole blank. The scraper is located on the side wall of the upper end of the blanking hole in the direction of the resetting and translation of the translation plate, and a blanking area is formed on the side of the scraper in the blanking hole. When the copper-aluminum composite pole blank, which is completely exposed at the outlet end of the locking sleeve, is located in the blanking area, the scraper is located on the side of the copper-aluminum composite pole blank.

[0009] According to the above-described stamping die for forming a pole blank, the driving mechanism includes a driving rod and a second return spring. The push plate is provided with a stop block and a driving frame at opposite ends in its translational direction, respectively. The second return spring is disposed between the stop block and one side of the lower template, and their ends abut against each other. The driving rod is fixed on the upper module on the side corresponding to the driving frame. The driving part of the driving rod is located between the roller of the driving frame and the side of the lower module corresponding to the driving frame. The driving part of the driving rod is provided with a protrusion on the side of the driving frame facing the roller. The upper side of the protrusion is an upper inclined surface adapted to the roller.

[0010] According to the above-described stamping die for forming a pole blank, a limiting step is provided on the side of the drive rod facing the lower module. When the upper die assembly and the lower die assembly are closed, the limiting step is located on the limiting surface of the lower module.

[0011] According to the above-described stamping die for forming a pole blank, a guide rod is slidably installed in the guide channel of the stop block. One end of the guide rod is connected and fixed to the connection hole of the lower module. A second return spring is sleeved on the guide rod, and the two ends of the second return spring respectively abut against the stepped surface of the connection hole and the stepped surface in the guide channel of the stop block.

[0012] According to the above-described stamping die for forming a pole blank, the upper module includes, from top to bottom, an interconnected upper template, a first pad, a punch fixing plate, a second pad, and a stripper plate. The upper end of the punch passes through the second pad and the stripper plate and is connected to the punch fixing plate. The lower module includes, from bottom to top, an interconnected lower template, a third pad, and a die plate. The die cavity is disposed on the die plate. Both the lower template and the third pad are provided with through holes that are coaxial with and connected to the die cavity. The two through holes are joined together to form a material feeding channel. A locking sleeve is installed in the through hole of the lower template. The upper side of the lower template serves as a limiting surface. There are multiple punches and multiple die cavities. The multiple punches and multiple die cavities are arranged along the width direction of the strip between the upper die assembly and the lower die assembly. Each pair of adjacent punches and die cavities that perform stamping are staggered in the length direction of the strip between the upper die assembly and the lower die assembly.

[0013] The stamping die for forming pole blanks as described above further includes a linear conveyor, at least a portion of which is located below the push plate to receive the copper-aluminum composite pole blank scraped off from the discharge end of the locking sleeve.

[0014] According to the above-described stamping die for forming a pole blank, a protective cover is installed on the lower module. The protective cover covers the stop block and the area between the stop block and one side of the lower template, and is spaced apart from each other.

[0015] According to the above-described stamping die for forming a pole blank, the circumference of the discharge end of the locking sleeve has multiple slits along its length direction, and the multiple slits are arranged in a circular array, with an elastic sheet between each pair of adjacent slits.

[0016] The stamping die for forming pole column blanks described in this utility model has the following beneficial effects:

[0017] 1. The continuously punched pole blanks are locked and stacked in a locking sleeve. Under the action of stamping oil, the formed pole blanks are stacked and adhered to each other. At the same time, under the translation of the push plate, the scraper section scrapes off the pole blanks that are completely exposed at the discharge end of the locking sleeve, thereby ensuring that the predetermined surface of the pole blanks falling onto the linear conveyor is facing up, that is, the aluminum surface of the copper-aluminum composite pole blanks is facing up.

[0018] 2. The pole blanks stuck to the bottom of the multiple locking sleeves are scraped off one by one and fed onto the linear conveyor to avoid the falling pole blanks from overlapping and being output in a disorderly manner. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the overall structure of the embodiment (I);

[0020] Figure 2 This is a magnified view of point A;

[0021] Figure 3 This is a schematic diagram of the overall structure of the embodiment (I);

[0022] Figure 4 This is a schematic diagram of the overall structure of the embodiment (II);

[0023] Figure 5 This is a cross-sectional view of the overall structure of the embodiment (II);

[0024] Figure 6 This is a cross-sectional view of the overall structure of the embodiment (III);

[0025] Figure 7 This is a schematic diagram of the structure of the stamping joint;

[0026] Figure 8 This is a schematic diagram of the locking sleeve.

[0027] 1. Upper mold assembly; 11. Upper template; 12. First backing plate; 13. Fixing plate; 14. Second backing plate; 15. Stripper plate; 16. Punch; 10. Upper module;

[0028] 2. Lower mold assembly; 20. Lower module; 201. Gap; 202. Elastic sheet; 21. Lower template; 22. Third backing plate; 23. Concave template; 231. Concave mold cavity; 24. Material discharge channel; 25. First return spring; 26. Guide rod; 27. Guide sleeve; 28. Support block; 29. ​​Base plate; 30. Locking sleeve;

[0029] 3. Drive mechanism; 31. Drive rod; 311. Drive part; 312. Protrusion; 313. Upper inclined surface; 314. Lower inclined surface; 315. Limiting step; 32. Drive frame; 321. Roller; 33. Stop block; 331. Guide channel; 34. Second return spring; 35. Guide rod;

[0030] 4. Push plate; 41. Material discharge hole; 411. Material discharge area; 412. Scraping area; 413. Scraping section;

[0031] 5. Linear conveyor; 6. Protective cover;

[0032] 100. Copper-aluminum composite strip; 101. Stamping hole; 200. Copper-aluminum composite pole blank. Detailed Implementation

[0033] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0034] Example:

[0035] like Figures 1-8 As shown in the figure, the stamping die for forming pole blanks described in this embodiment includes an upper die assembly 1, a lower die assembly 2, a push plate 4, and a drive mechanism 3.

[0036] The upper mold assembly 1 includes an upper module 10 and a plurality of punches 16 mounted on the upper module 10; the upper module 10 includes, from top to bottom, an upper template 11, a first pad 12, a punch fixing plate 13, a second pad 14 and a stripper plate 15 connected to each other, and the upper end of the punch 16 passes through the second pad 14 and the stripper plate 15 in sequence and is connected to the punch fixing plate 13.

[0037] The lower mold assembly 2 includes a lower module 20, and several die cavities 231 and several material discharge channels 24 disposed on the lower module 20. A locking sleeve 30 is installed in the material discharge channel 24. The channels in the die cavities 231 and the locking sleeve 30 are interconnected and coaxially arranged. The shapes of the punch 16, the die cavities 231 and the channels in the locking sleeve 30 are all adapted to the shape of the copper-aluminum composite pole blank 200. The lower module 20 includes, from bottom to top, a lower template 21, a third pad 22 and a die cavity 23 connected to each other. The die cavity 231 is disposed on the die cavity 23. The lower template 21 and the third pad 22 are both provided with through holes 240 that are coaxially connected to and connected to the die cavity 231. The two through holes 240 are joined together to form the material discharge channel 24. The locking sleeve 30 is installed in the through hole 240 of the lower template 21.

[0038] Guide rods 26 and guide sleeves 27 are respectively installed on the upper template 11 and the lower template 21. The guide rods 26 are fitted inside the guide sleeves 27. A first return spring 25 is sleeved on the guide rods 26. The two ends of the first return spring 25 abut against the stepped surface inside the guide sleeves 27 and the stepped surface of the guide rods 26 or the lower side surface of the upper template 11.

[0039] Among them, such as Figure 7As shown, there are multiple punches 16 and die cavities 231, typically seventeen, but more or fewer are also possible. The multiple punches 16 and multiple die cavities 231 are arranged along the width of the strip between the upper die assembly 1 and the lower die assembly 2. Each pair of adjacent punches 16 and die cavities 231 that perform stamping engagements are staggered along the length of the strip between the upper die assembly 1 and the lower die assembly 2. After stamping holes 101 are formed on the strip between the upper die assembly 1 and the lower die assembly 2, the center point of one stamping engagement point corresponds to one end of the stamping hole 101 (located along the strip width) along the strip length, and the center point of the other stamping engagement point corresponds to the center of at least one stamping hole 101 along the strip width. This structural arrangement makes the stamping process compact and improves the material utilization rate of the strip.

[0040] Based on the above, during the stamping process, the aluminum surface of the copper-aluminum composite strip 100 faces upward and enters between the upper die assembly 1 and the lower die assembly 2 in a continuous step-by-step manner. After the upper die assembly 1 and the lower die assembly 2 are closed, the copper-aluminum composite pole blank 200 is stamped out from the composite copper-aluminum strip by the cooperation of each punch 16 and the die cavity 231. A stamping hole 101 is left on the copper-aluminum composite strip 100. During the continuous step-by-step stamping process, the stamped copper-aluminum composite pole blank 200 enters the locking sleeve 30 one by one through the die cavity 231, and then the material exiting the locking sleeve 30... The copper-aluminum composite electrode blanks 200 are exposed one by one. Since the copper-aluminum composite strip 100 is coated with stamping oil before stamping, the multiple copper-aluminum composite electrode blanks 200 entering the locking sleeve 30 are stacked and adhered to each other. This means that the copper-aluminum composite electrode blank 200 that is fully exposed at the outlet end of the locking sleeve 30 is also adhered to the previous copper-aluminum composite electrode blank 200. This method can prevent the formed copper-aluminum composite electrode blanks 200 from falling off randomly. In addition, the copper-aluminum composite electrode blanks 200 output from the outlet end of the locking sleeve 30 always have the aluminum side facing up to meet production requirements.

[0041] In this embodiment, the push plate 4 is movably disposed below the discharge end of the locking sleeve 30. The push plate 4 is provided with a plurality of discharge holes 41 corresponding to the positions of the discharge ends of the locking sleeve 30. A scraper part 413 is provided in each discharge hole 41. The driving mechanism 3 includes a driving rod 31 and a second return spring 34. The length of the push plate 4 is greater than the length of the lower template 21. A stop block 33 and a driving frame 32 are respectively provided at opposite ends of the push plate 4 in its translational direction. The second return spring 34 is disposed between the stop block 33 and one side of the lower template 21. Furthermore, their ends abut against each other. The drive rod 31 is fixed on the upper module 10 on the side corresponding to the drive frame 32. The ends of the drive frame 32 and the push plate 4 are provided with corresponding passageways for the drive part 311 of the drive rod 31 to pass through. The roller 321 is provided on the through hole side of the drive frame 32. The drive part 311 of the drive rod 31 is located between the roller 321 of the drive frame 32 and the side of the lower module 20 corresponding to the drive frame 32. The drive part 311 of the drive rod 31 has a protrusion 3 on the side facing the roller 321 of the drive frame 32. 12. The upper side of the protrusion 312 is an upper inclined surface 313 adapted to the roller 321; wherein, when the upper mold assembly 1 and the lower mold assembly 2 are closed, the drive rod 31 moves downward, so that the protrusion 312 of the drive rod 31 is located below the roller 321, and the upper inclined surface 313 separates from the roller 321 on the drive frame 32. At this time, the push plate 4 is reset by the action of the second return spring 34, so that the blanking area 411 of the blanking hole 41 corresponds to the discharge end of the locking sleeve 30, so that the copper-aluminum composite pole blank 200 at the discharge end of the locking sleeve 30 can enter the blanking area of ​​the blanking hole 41. 411; When the upper mold assembly 1 and the lower mold assembly 2 open, the drive rod 31 moves upward, and the roller 321 on the drive frame 32 is guided by the upper inclined surface 313 to reach the highest surface of the drive part 311 of the drive rod 31, so as to drive the push plate 4 to move to the right, causing the scraping part 413 to move horizontally and scrape off the copper-aluminum composite pole blank 200 that is completely exposed at the discharge end of the locking sleeve 30 and located in the discharge area 411 of the discharge hole 41. The scraped copper-aluminum composite pole blank 200 has the aluminum surface facing up and the copper surface facing down, and the discharge area 411 of the discharge hole 41 is misaligned with the discharge end of the locking sleeve 30.

[0042] Furthermore, it also includes a linear conveyor 5 and a base plate 29. At least a portion of the linear conveyor 5 is located below the push plate 4 to receive the copper-aluminum composite pole blank 200 scraped off from the discharge end of the locking sleeve 30. The base plate 29 is located below the linear conveyor 5 and is connected to the lower module 20 via a support block 28. The linear conveyor 5 is mounted on the base plate 29 or the support block 28. The linear conveyor 5 is a belt conveyor, so the side plate of the belt conveyor is fixedly connected to the base plate 29 or the support block 28. The copper-aluminum composite pole blank 200 scraped off by the push plate 4 falls onto the belt conveyor surface of the belt conveyor with the aluminum side facing up. At this time, the belt conveyor works to transport the falling copper-aluminum composite pole blank 200 to its discharge position.

[0043] Preferably, the lower side of the protrusion 312 is a lower inclined surface 314 adapted to the roller 321. The lower inclined surface 314 and the upper inclined surface 313 are symmetrically arranged. When the roller 321 is at the lowest position of the lower inclined surface 314, the push plate 4 is reset under the action of the second reset spring 34.

[0044] In this embodiment, the discharge hole 41 is an elongated hole arranged along the translational direction of the push plate 4, so that a discharge area 411 and a scraping area 412 are formed adjacently within the discharge hole 41. The scraping part 413 is disposed at the upper, middle, or lower end of the scraping area 412, and the scraping part 413 is located below the discharge end face of the locking sleeve 30. When the copper-aluminum composite pole blank 200, which is completely exposed at the discharge end of the locking sleeve 30, is located within the discharge area 411, the scraping part 413 is located beside the copper-aluminum composite pole blank 200. Preferably, the scraping part 413 is selected to be disposed in the middle or lower end of the scraping area 412, and the discharge end of the locking sleeve 30 is at least partially located within the discharge hole 41. The scraping part 413 is a plate structure connected to the inner wall of the scraping area 412 on at least one side, or a protruding structure protruding from the inner wall of the scraping area 412.

[0045] In another embodiment, the discharge hole 41 is a circular or square hole with an inner diameter larger than the outer diameter of the electrode blank. The scraper part 413 is disposed on the side wall of the upper end of the discharge hole 41 located in the direction of the resetting translation of the translation plate. A discharge area 411 is formed on the side of the scraper part 413 in the discharge hole 41. When the copper-aluminum composite electrode blank 200, which is completely exposed at the discharge end of the locking sleeve 30, is located in the discharge area 411, the scraper part 413 is located on the side of the copper-aluminum composite electrode blank 200.

[0046] In this embodiment, a limiting step 315 is provided on the side of the drive rod 31 facing the lower module 20, and the upper side of the lower template 21 serves as a limiting surface. When the upper mold assembly 1 and the lower mold assembly 2 are closed, the limiting step 315 is limited to the limiting surface of the lower module 20. This structure limits the downward movement of the drive rod to prevent the drive rod 31 from moving too far downward.

[0047] In this embodiment, a guide rod 35 is slidably installed within the guide channel 331 of the stop block 33. One end of the guide rod 35 is connected and fixed to the connection hole of the lower module 20. The second return spring 34 is sleeved on the guide rod 35, and both ends of the second return spring 34 abut against the stepped surface of the connection hole and the stepped surface within the guide channel 331 of the stop block 33, respectively. This structural arrangement allows the push plate 4 to reciprocate under the action of the guide rod 35 and the guide channel 331.

[0048] In this embodiment, a protective cover 6 is installed on the lower module 20. The protective cover 6 covers the stop block 33 and the area between the stop block 33 and one side of the lower template 21, and is spaced apart from each other. Its structure is designed to prevent the hand from being pinched when inserted between the stop block 33 and one side of the lower template 21 during assembly, thereby improving safety performance.

[0049] In this embodiment, the circumference of the discharge end of the locking sleeve 30 is provided with multiple slits 201 along its length direction. The multiple slits 201 are arranged in a circular array. There is an elastic piece 202 between each pair of adjacent slits 201. When there is no copper-aluminum composite pole blank 200 at the discharge end of the locking sleeve 30, the slits 201 can be used to make the elastic pieces 202 close together or gather together to reduce the inner diameter of the discharge end of the locking sleeve 30. When the copper-aluminum composite pole blank 200 enters the discharge end, it has the function of locking it.

[0050] This utility model is not limited to the above-described preferred embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in their shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this utility model.

Claims

1. A stamping die for forming pole blanks, characterized in that, It includes an upper mold assembly (1), a lower mold assembly (2), a push plate (4), and a drive mechanism (3); The upper mold assembly (1) includes an upper module (10) and several punches (16) mounted on the upper module (10); the lower mold assembly (2) includes a lower module (20), and several die cavities and several unloading channels (24) disposed on the lower module (20). A locking sleeve (30) is installed in the unloading channel (24). The channels in the die cavities and the locking sleeve (30) are interconnected and coaxially arranged. The shapes of the punches (16), the die cavities and the channels in the locking sleeve (30) are all adapted to the shape of the pole blank. The push plate (4) is movably disposed below the discharge end of the locking sleeve (30). The push plate (4) is provided with a plurality of dropping holes (41) corresponding to the position of the discharge end of the locking sleeve (30). A scraper (413) is provided in the dropping hole (41). The drive mechanism (3) is used to drive the push plate (4) to make translational movement, causing the scraper (413) to translate and scrape off the pole blank that is completely exposed at the discharge end of the locking sleeve (30) and located in the dropping hole (41).

2. The stamping die for forming pole blanks according to claim 1, characterized in that, The discharge hole (41) is an elongated hole and is arranged along the translational direction of the push plate (4) so ​​that a discharge area (411) and a scraping area (412) are formed adjacent to each other in the discharge hole (41). The scraping part (413) is located in the middle or lower end of the scraping area (412), and the discharge end of the locking sleeve (30) is at least partially located in the discharge hole (41). The scraping part (413) is located below the discharge end face of the locking sleeve (30). The scraping part (413) is a plate structure connected to the inner wall of the scraping area (412) on at least one side or a protruding structure protruding from the inner wall of the scraping area (412). When the pole blank completely exposed at the discharge end of the locking sleeve (30) is located in the discharge area (411), the scraping part (413) is located beside the pole blank.

3. The stamping die for forming pole blanks according to claim 1, characterized in that, The discharge hole (41) is a circular or square hole with an inner diameter larger than the outer diameter of the pole blank. The scraper (413) is located on the side wall of the upper end of the discharge hole (41) in the direction of the resetting translation of the translation plate. The position of the scraper (413) in the discharge hole (41) forms a discharge area (411). When the pole blank that is completely exposed at the discharge end of the locking sleeve (30) is located in the discharge area (411), the scraper (413) is located on the side of the pole blank.

4. The stamping die for forming pole blanks according to claim 1, characterized in that, The drive mechanism (3) includes a drive rod (31) and a second return spring (34). The push plate (4) is provided with a stop block (33) and a drive frame (32) at opposite ends in its translation direction. The second return spring (34) is located between the stop block (33) and one side of the lower template (21) and their ends abut against each other. The drive rod (31) is fixed on the upper module (10) on the side corresponding to the drive frame (32). The drive part (311) of the drive rod (31) is located between the roller (321) of the drive frame (32) and the side of the lower module (20) corresponding to the drive frame (32). The drive part (311) of the drive rod (31) is provided with a protrusion (312) on the side facing the roller (321) of the drive frame (32). The upper side of the protrusion (312) is an upper inclined surface (313) adapted to the roller (321).

5. The stamping die for forming pole post blanks according to claim 4, characterized in that, A limiting step (315) is provided on the side of the drive rod (31) facing the lower module (20). When the upper mold assembly (1) and the lower mold assembly (2) are closed, the limiting step (315) is limited to the limiting surface of the lower module (20).

6. The stamping die for forming pole post blanks according to claim 5, characterized in that, A guide rod (35) is slidably installed in the guide channel (331) of the stop (33). One end of the guide rod (35) is connected and fixed to the connection hole of the lower module (20). The second return spring (34) is sleeved on the guide rod (35). The two ends of the second return spring (34) abut against the stepped surface of the connection hole and the stepped surface in the guide channel (331) of the stop (33), respectively.

7. The stamping die for forming pole post blanks according to claim 6, characterized in that, The upper module (10) includes, from top to bottom, an upper template (11), a first pad (12), a punch (16) fixing plate (13), a second pad (14), and a stripper plate (15) that are connected to each other. The upper end of the punch (16) passes through the second pad (14) and the stripper plate (15) in sequence and is connected to the punch (16) fixing plate (13). The lower module (20) includes, from bottom to top, a lower template (21), a third pad (22), and a concave template (23) connected to each other. The concave mold cavity is set on the concave template (23). The lower template (21) and the third pad (22) are both provided with through holes (240) that are coaxial with and connected to the concave mold cavity. The two through holes (240) are joined together to form a feeding channel (24). The locking sleeve (30) is installed in the through hole (240) of the lower template (21). The upper side of the lower template (21) serves as a limiting surface. The number of punches (16) and cavities is multiple, and the multiple punches (16) and multiple cavities are arranged along the strip width direction between the upper die assembly (1) and the lower die assembly (2). The punches (16) and cavities that make stamping fits at each adjacent location are staggered in the strip length direction between the upper die assembly (1) and the lower die assembly (2).

8. The stamping die for forming pole post blanks according to claim 7, characterized in that, It also includes a linear conveyor (5), at least a portion of which is located below the pusher plate (4) to receive the pole blank scraped off from the discharge end of the locking sleeve (30).

9. The stamping die for forming pole post blanks according to claim 4, characterized in that, A protective cover (6) is installed on the lower module (20). The protective cover (6) covers the block (33) and the area between the block (33) and one side of the lower template (21), and is spaced apart from each other.

10. A stamping die for forming pole blanks according to any one of claims 1-9, characterized in that, The locking sleeve (30) has multiple slits (201) along its length on the periphery of the discharge end. The multiple slits (201) are arranged in a ring array, and there is an elastic sheet (202) between each pair of adjacent slits (201).

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