Continuous punch stretch spin cut die
By integrating multiple processes into a continuous stamping, stretching, and rotary cutting die, the problem of low processing efficiency in traditional cylindrical products has been solved, achieving high-efficiency production and dimensional consistency, which is suitable for the lightweight requirements of automobiles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI ZILIN AUTO PARTS CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional cylindrical product processing requires multiple molds and positioning steps, resulting in long production cycles, high costs, low efficiency, and difficulty in meeting customer needs.
Design a continuous stamping, stretching, and rotary cutting die that integrates multiple processes into one die, including an upper die base, a lower die base, a rotary cutting upper ejection mechanism, and a rotary cutting lower die mechanism, thereby integrating multiple processes and reducing positioning steps.
By integrating mold design, production efficiency is significantly improved, process changeover time is reduced, dimensional consistency is enhanced, making it suitable for mass production and meeting the lightweight requirements of automobiles.
Smart Images
Figure CN224309444U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology, specifically a continuous stamping, stretching and rotary cutting mold. Background Technology
[0002] Traditional processing of cylindrical products requires multiple molds for stretching, stamping, and rotary cutting, resulting in a long processing cycle, multiple sets of molds, high processing costs, and low production efficiency due to the need for continuous product positioning during subsequent processing, making it difficult to meet customer needs. Summary of the Invention
[0003] To overcome the shortcomings of the prior art, this utility model provides a continuous stamping, stretching and rotary cutting die that integrates multiple processes into one die, eliminating the need for multiple positioning steps and significantly improving production efficiency.
[0004] To achieve the above objectives, a continuous stamping, stretching, and rotary cutting die is designed, comprising an upper die base and a lower die base. The upper die base is characterized by: one end of a lower backing plate connected to its bottom; the other end of the lower backing plate connected to one end of an upper clamping plate; the other end of the upper clamping plate connected to a stop plate; a stripper plate is provided below the stop plate; and from left to right, the stripper plate is provided with a first-position die, a second-position die, a third-position die, a fourth-position die, a fifth-position die, a sixth-position die, and a seventh-position die; a rotary cutting and stripping mechanism is provided on one side of the stripper plate; the lower die base... The top of the mold is connected to the lower template via several support seats. The top of the lower template is connected to one end of the lower left pad and the lower right pad. The other end of the lower left pad and the lower right pad is connected to one end of the lower left back plate and the lower right back plate. The other end of the lower left back plate is connected to the pressure plate. A lower mold inner ejector plate is provided above the lower right back plate. From left to right, the lower mold inner ejector plate is provided with the first station punch, the second station punch, the third station punch, the fourth station punch, the fifth station punch, the sixth station punch, and the seventh station punch. A rotary cutting lower mold mechanism is provided on one side of the lower mold inner ejector plate.
[0005] The lower pad is internally connected to one end of several springs, and the other ends of the springs pass through the upper clamping plate, the stop plate and the stripping plate respectively.
[0006] The bottoms of the first, second, third, fourth, sixth, and seventh station die dies are respectively connected to one end of the upper spring at the first, second, third, fourth, sixth, and seventh station dies. The other ends of the upper spring at the first, second, third, fourth, sixth, and seventh station dies respectively pass through the upper clamping plate and the stop plate and are located inside the lower pad plate.
[0007] The rotary cutting and stripping mechanism includes a fixed plate, a first fixed block, and a rotary cutting blade. The bottom of the lower pad is connected to the fixed plate by bolts. The rotary cutting blade is located below the fixed plate. The first fixed blocks are located on both sides of the rotary cutting blade. The top of the first fixed blocks is connected to the lower pad by bolts.
[0008] The bottoms of the first-station punch, the second-station punch, and the fifth-station punch are respectively connected to the lower right back plate and the lower right pad plate using connecting bolts.
[0009] The upper part of the fourth station punch is located inside the lower die ejector plate, and the lower part of the punch is located inside the lower right back plate. The bottom of the punch is connected to one end of the lower spring of the fourth station, and the other end of the lower spring of the fourth station passes through the lower right pad plate and is located inside the lower template.
[0010] The bottoms of the sixth and seventh station punches are respectively connected to one end of the sixth and seventh station lower springs, and the other ends of the sixth and seventh station lower springs are located inside the lower right back plate.
[0011] The rotary cutting die mechanism includes a floating block and a second fixed block. The bottom of the second fixed block is connected to the lower right back plate and the lower right pad plate by bolts. The floating block is sleeved on the outside of the second fixed block.
[0012] The first station die corresponds to the first station punch, the second station die corresponds to the second station punch, the third station die corresponds to the third station punch, the fourth station die corresponds to the fourth station punch, the fifth station die corresponds to the fifth station punch, the sixth station die corresponds to the sixth station punch, the seventh station die corresponds to the seventh station punch, and the rotary cutting upper ejector mechanism corresponds to the rotary cutting lower die mechanism.
[0013] Compared with the prior art, this utility model provides a continuous stamping, stretching and rotary cutting die that integrates multiple processes into one die, eliminating the need for multiple positioning processes and greatly improving production efficiency. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model in the mold-opening state.
[0015] Figure 2 This is a top view of the structure of this utility model.
[0016] See Figure 1 , Figure 21 is the upper mold base, 2 is the lower backing plate, 3 is the upper clamping plate, 4 is the stop plate, 5 is the stripper plate, 6 is the first station die, 7 is the second station die, 8 is the third station die, 9 is the fourth station die, 10 is the fifth station die, 11 is the sixth station die, 12 is the seventh station die, 13 is the rotary cutting and stripping mechanism, 13-1 is the fixing plate, 13-2 is the first fixing block, 13-3 is the rotary cutting blade, 14 is the spring, 15 is the upper spring at the first station, 16 is the upper spring at the second station, 17 is the upper spring at the third station, 18 is the upper spring at the fourth station, 19 is the upper spring at the sixth station, and 20 is the upper spring at the seventh station. 21 is the lower die inner stripper plate, 22 is the pressure plate, 23 is the rotary cutting lower die mechanism, 23-1 is the second fixed block, 23-2 is the floating block, 24 is the lower left back plate, 25 is the lower right back plate, 26 is the lower left pad plate, 27 is the lower right pad plate, 28 is the lower template plate, 29 is the support base, 30 is the lower die base, 31 is the first station punch, 32 is the second station punch, 33 is the third station punch, 34 is the material sheet, 35 is the fourth station punch, 36 is the fourth station lower spring, 37 is the fifth station punch, 38 is the sixth station punch, 39 is the seventh station punch, 40 is the sixth station lower spring, and 41 is the seventh station lower spring. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings.
[0018] like Figure 1 , Figure 2 As shown, the bottom of the upper mold base 1 is connected to one end of the lower pad 2, the other end of the lower pad 2 is connected to one end of the upper clamping plate 3, and the other end of the upper clamping plate 3 is connected to the stop plate 4. Below the stop plate 4 is a stripper plate 5. From left to right, the stripper plate 5 is provided with a first-position die 6, a second-position die 7, a third-position die 8, a fourth-position die 9, a fifth-position die 10, a sixth-position die 11, and a seventh-position die 12. A rotary cutting and stripping mechanism 13 is located on one side of the stripper plate 5. The top of the lower mold base 30 is connected to the lower template 28 via several support seats 29. The top of the lower template 28 is connected to... One end of the lower left pad 26 and the lower right pad 27 is connected to the other end of the lower left back plate 24 and the lower right back plate 25. The other end of the lower left back plate 24 is connected to the pressure plate 22. A lower die inner ejector plate 21 is provided above the lower right back plate 25. From left to right, the lower die inner ejector plate 21 is provided with a first station punch 31, a second station punch 32, a third station punch 33, a fourth station punch 35, a fifth station punch 37, a sixth station punch 38, and a seventh station punch 39. A rotary cutting lower die mechanism 23 is provided on one side of the lower die inner ejector plate 21.
[0019] The lower pad 2 is connected to one end of several springs 14, and the other ends of several springs 14 pass through the upper clamping plate 3, the stop plate 4 and the stripping plate 5 respectively.
[0020] The bottoms of the first station die 6, the second station die 7, the third station die 8, the fourth station die 9, the sixth station die 11, and the seventh station die 12 are respectively connected to one end of the first station upper spring 15, the second station upper spring 16, the third station upper spring 17, the fourth station upper spring 18, the sixth station upper spring 19, and the seventh station upper spring 20. The other ends of the first station upper spring 15, the second station upper spring 16, the third station upper spring 17, the fourth station upper spring 18, the sixth station upper spring 19, and the seventh station upper spring 20 respectively pass through the upper clamping plate 3 and the stop plate 4 and are located inside the lower pad plate 2.
[0021] The rotary cutting and stripping mechanism 13 includes a fixed plate, a first fixed block, and a rotary cutting blade. The bottom of the lower pad 2 is connected to the fixed plate 13-1 by bolts. A rotary cutting blade 13-3 is provided below the fixed plate 13-1. A first fixed block 13-2 is provided on both sides of the rotary cutting blade 13-3. The top of the first fixed block 13-2 is connected to the lower pad 2 by bolts.
[0022] The bottoms of the first station punch 31, the second station punch 32, and the fifth station punch 37 are respectively connected to the lower right back plate 25 and the lower right pad plate 27 by connecting bolts.
[0023] The upper part of the fourth station punch 35 is located inside the lower die inner stripper plate 21, and the lower part of the punch 35 is located inside the lower right back plate 25. The bottom of the punch 35 is connected to one end of the lower spring 36 of the fourth station, and the other end of the lower spring 36 of the fourth station passes through the lower right pad plate 27 and is located inside the lower template 28.
[0024] The bottoms of the sixth-position punch 38 and the seventh-position punch 39 are respectively connected to one end of the sixth-position lower spring 40 and the seventh-position lower spring 41, and the other end of the sixth-position lower spring 40 and the seventh-position lower spring 41 is located inside the lower right back plate 25.
[0025] The rotary cutting die mechanism 23 includes a floating block and a second fixed block. The bottom of the second fixed block 23-1 is connected to the lower right back plate 25 and the lower right pad plate 27 by bolts. The floating block 23-2 is sleeved on the outside of the second fixed block 23-1.
[0026] The first station die 6 corresponds to the first station punch 31, the second station die 7 corresponds to the second station punch 32, the third station die 8 corresponds to the third station punch 33, the fourth station die 9 corresponds to the fourth station punch 35, the fifth station die 10 corresponds to the fifth station punch 37, the sixth station die 11 corresponds to the sixth station punch 38, the seventh station die 12 corresponds to the seventh station punch 39, and the rotary cutting upper ejection mechanism 13 corresponds to the rotary cutting lower die mechanism 23.
[0027] This utility model mold adopts a multi-pass progressive stretching structure to achieve deep stretching of metal sheets or complex curved surface forming; it integrates a rotary blade or laser cutting system to directly perform precision rotary cutting and separation of the workpiece after stretching and forming; stretching and cutting are completed in a single clamping, reducing process changeover time and making it suitable for mass production; the stretching and rotary cutting actions are controlled in a coordinated manner to avoid secondary positioning errors and improve dimensional consistency; optimized layout design, such as nested layout, reduces waste at the edges and corners; it can process deep-stretched parts such as cup-shaped parts and irregular curved surface parts to meet the lightweight requirements of automobiles. This mold is used for trimming the edges of cylindrical stretched parts, with no connecting blade edge and equal cutting edges at the ends.
Claims
1. A continuous stamping, stretching, and rotary cutting die, comprising an upper die base and a lower die base, characterized in that: The bottom of the upper mold base (1) is connected to one end of the lower pad (2), the other end of the lower pad (2) is connected to one end of the upper clamping plate (3), the other end of the upper clamping plate (3) is connected to the stop plate (4), and a stripper plate (5) is provided below the stop plate (4). The stripper plate (5) is provided with a first station die (6), a second station die (7), a third station die (8), a fourth station die (9), a fifth station die (10), a sixth station die (11), and a seventh station die (12) from left to right. A rotary cutting and stripping mechanism (13) is provided on one side of the stripper plate (5). The top of the lower mold base (30) is connected to the lower template (28) through several support seats (29). The top of the lower template (28) is connected to the lower template (28). One end of the lower left pad (26) and the lower right pad (27) is connected. The other end of the lower left pad (26) and the lower right pad (27) is connected to one end of the lower left back plate (24) and the lower right back plate (25). The other end of the lower left back plate (24) is connected to the pressure plate (22). A lower die inner ejector plate (21) is provided above the lower right back plate (25). From left to right, the lower die inner ejector plate (21) is provided with the first station punch (31), the second station punch (32), the third station punch (33), the fourth station punch (35), the fifth station punch (37), the sixth station punch (38), and the seventh station punch (39). A rotary cutting lower die mechanism (23) is provided on one side of the lower die inner ejector plate (21).
2. The continuous stamping, stretching, and rotary cutting die according to claim 1, characterized in that: The lower pad (2) is connected to one end of several springs (14), and the other end of several springs (14) passes through the upper clamping plate (3), the stop plate (4) and the stripping plate (5) respectively.
3. The continuous stamping, stretching, and rotary cutting die according to claim 1, characterized in that: The bottoms of the first station die (6), the second station die (7), the third station die (8), the fourth station die (9), the sixth station die (11), and the seventh station die (12) are respectively connected to one end of the first station upper spring (15), the second station upper spring (16), the third station upper spring (17), the fourth station upper spring (18), the sixth station upper spring (19), and the seventh station upper spring (20). The other ends of the first station upper spring (15), the second station upper spring (16), the third station upper spring (17), the fourth station upper spring (18), the sixth station upper spring (19), and the seventh station upper spring (20) respectively pass through the upper clamping plate (3) and the stop plate (4) and are located in the lower pad plate (2).
4. The continuous stamping, stretching, and rotary cutting die according to claim 1, characterized in that: The rotary cutting and stripping mechanism (13) includes a fixed plate, a first fixed block, and a rotary cutting blade. The bottom of the lower pad (2) is connected to the fixed plate (13-1) by bolts. A rotary cutting blade (13-3) is provided below the fixed plate (13-1). A first fixed block (13-2) is provided on both sides of the rotary cutting blade (13-3). The top of the first fixed block (13-2) is connected to the lower pad (2) by bolts.
5. A continuous stamping, stretching, and rotary cutting die according to claim 1, characterized in that: The bottoms of the first station punch (31), the second station punch (32), and the fifth station punch (37) are respectively connected to the lower right back plate (25) and the lower right pad plate (27) by connecting bolts.
6. A continuous stamping, stretching, and rotary cutting die according to claim 1, characterized in that: The upper part of the fourth station punch (35) is located inside the lower die inner stripper plate (21), the lower part of the punch (35) is located inside the lower right back plate (25), the bottom of the punch (35) is connected to one end of the fourth station lower spring (36), and the other end of the fourth station lower spring (36) passes through the lower right pad plate (27) and is located inside the lower template plate (28).
7. A continuous stamping, stretching, and rotary cutting die according to claim 1, characterized in that: The bottom of the sixth station punch (38) and the seventh station punch (39) are respectively connected to one end of the sixth station lower spring (40) and the seventh station lower spring (41), and the other end of the sixth station lower spring (40) and the seventh station lower spring (41) is located inside the lower right back plate (25).
8. A continuous stamping, stretching, and rotary cutting die according to claim 1, characterized in that: The rotary cutting die mechanism (23) includes a floating block and a second fixed block. The bottom of the second fixed block (23-1) is connected to the lower right back plate (25) and the lower right pad plate (27) by bolts. The floating block (23-2) is sleeved on the outside of the second fixed block (23-1).
9. A continuous stamping, stretching, and rotary cutting die according to claim 1, characterized in that: The first station die (6) corresponds to the first station punch (31), the second station die (7) corresponds to the second station punch (32), the third station die (8) corresponds to the third station punch (33), the fourth station die (9) corresponds to the fourth station punch (35), the fifth station die (10) corresponds to the fifth station punch (37), the sixth station die (11) corresponds to the sixth station punch (38), the seventh station die (12) corresponds to the seventh station punch (39), and the rotary cutting upper ejector mechanism (13) corresponds to the rotary cutting lower die mechanism (23).