Corrugated plate bending forming die
By designing a multi-stage stamping and transmission system mold, the problems of low bending efficiency and poor precision of corrugated plates were solved, achieving efficient and precise corrugated plate forming and convenient mold maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-04-07
AI Technical Summary
The bending method of the corrugated board in the existing technology is inefficient, leaves indentations on the surface, has poor precision, and is prone to breakage.
It adopts an upper and lower die structure, and through the cooperation of multiple forming blocks and springs, it uses guide grooves and pins to limit the stamping of sheet metal to form V grooves. Combined with the transmission system of worm gear, worm wheel shaft and double screw, it is easy to disassemble and maintain.
It achieves efficient and precise corrugated plate forming, avoids plate breakage, and simplifies the mold disassembly and maintenance process.
Smart Images
Figure CN224087674U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bending die technology, specifically a corrugated plate bending forming die. Background Technology
[0002] Corrugated sheets are a widely used type of sheet material. Unlike traditional sheets that are curved or straight, they are wavy. Corrugated sheets are used in construction engineering, water treatment engineering, highway guardrails, and container manufacturing. Before production, corrugated sheets are usually relatively straight sheets. They are then formed by stamping with bending dies to bend the sheet into a wavy shape.
[0003] Conventional thin sheet metal bending forming methods use bending knives to bend lines one by one, which is not only inefficient, but also produces workpieces with indentations and poor precision. The bending effect is not ideal, and the waveform specifications are inconsistent. If the sheet metal is bent in one punching, both sides of the bending area are subjected to tensile force, which makes the sheet metal easy to break. Utility Model Content
[0004] Therefore, the purpose of this utility model is to provide a corrugated plate bending forming mold to solve the technical problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a corrugated plate bending forming mold, comprising an upper mold and a lower mold, wherein a fourth forming block is fixed on both sides of the bottom of the upper mold, and a first forming block, two second forming blocks, and two third forming blocks are respectively connected inside the upper mold, wherein a first spring and a first limiting rod are respectively provided on the top of the first forming block, a second spring and a second limiting rod are respectively provided on the top of the second forming block, and a third spring and a limiting sleeve are respectively provided on the top of the third forming block, wherein guide grooves are provided on both sides of the first forming block, the second forming block, and the third forming block, and a pin is passed through one side of the upper mold; a limiting groove is provided on the outer ring of the pin, and a housing is fixed on the other side of the upper mold, wherein a worm and a worm wheel shaft are respectively connected to the upper part of the housing, and two bidirectional lead screws are connected inside the housing, wherein bevel gears are connected to the top of the two bidirectional lead screws and both ends of the worm wheel shaft, and two mirror-mounted limiting plates are connected between the two bidirectional lead screws.
[0006] By adopting the above technical solution, before bending begins, the fourth forming block is fixed to the upper die and will not move downwards, while the first, second, and third forming blocks move downwards due to gravity and the elasticity of the first, second, and third springs. At this time, the first, second, and third forming blocks are limited by guide grooves and pins. During this period, due to the different heights of the guide grooves on the sides of the first, second, and third forming blocks, the distribution of the first, second, third, and fourth forming blocks is stepped. During bending, the first forming block, located at the bottom, contacts the sheet metal first, thus forming a V-groove by stamping the sheet metal for the first time. As the upper die continues to move downwards... The first forming block cannot move down and the first spring is compressed. At this time, the second forming block comes into contact with the sheet metal, thus stamping the sheet metal a second time to add two V-grooves. After that, the second forming block cannot move down and the second spring is compressed. At this time, the third forming block comes into contact with the sheet metal, thus stamping the sheet metal a third time to add two more V-grooves. After that, the third forming block cannot move down and the third spring is compressed. At this time, the fourth forming block comes into contact with the sheet metal to complete the final stamping and add two more V-grooves, thus completing the bending of the corrugated plate. At this time, the bottoms of the first, second, third, and fourth forming blocks are flush, and force is applied to the sheet metal to continue to pressurize it, achieving a shaping effect.
[0007] Furthermore, the second molding block is slidably connected to the first molding block and the third molding block, and the third molding block is slidably connected to the upper mold.
[0008] By adopting the above technical solution, the fourth molding block is fixed to the upper mold and will not move downwards, while the first molding block, the second molding block, and the third molding block move downwards due to gravity and the elasticity of the first spring, the second spring, and the third spring.
[0009] Furthermore, the guide groove is slidably connected to the pin, and the height of the guide grooves on both sides of the third forming block is less than the height of the guide grooves on both sides of the second forming block, and the height of the guide grooves on both sides of the second forming block is less than the height of the guide grooves on both sides of the first forming block.
[0010] By adopting the above technical solution, the first molding block, the second molding block and the third molding block are limited by guide grooves and pins. During this period, due to the different heights of the guide grooves on the sides of the first molding block, the second molding block and the third molding block, the distribution of the first molding block, the second molding block, the third molding block and the fourth molding block is in a stepped shape.
[0011] Furthermore, the bottoms of the first molding block, the second molding block, the third molding block, and the fourth molding block are all rounded triangles.
[0012] By adopting the above technical solution, the first forming block, located at the bottom, contacts the sheet metal first, thus stamping the sheet metal for the first time to form a V-groove. As the upper die continues to move downward, the first forming block cannot move downward and the first spring is compressed. At this time, the second forming block contacts the sheet metal, thus stamping the sheet metal for the second time to add two V-grooves. After that, the second forming block cannot move downward and the second spring is compressed. At this time, the third forming block contacts the sheet metal, thus stamping the sheet metal for the third time to add two more V-grooves. After that, the third forming block cannot move downward and the third spring is compressed. At this time, the fourth forming block contacts the sheet metal to complete the final stamping and add two more V-grooves, thus completing the bending of the corrugated plate.
[0013] Furthermore, the diameter of the third spring is larger than the diameter of the second spring, and the diameter of the second spring is larger than the diameter of the first spring.
[0014] By adopting the above technical solution, the first spring can drive the first molding block to move independently without pushing the second and third molding blocks to move, and the second spring can drive the second molding block to move without pushing the third molding block to move.
[0015] Furthermore, the diameter of the first limiting rod is smaller than the diameter of the first spring, the diameter of the second limiting rod is smaller than the diameter of the second spring, and the diameter of the limiting sleeve is larger than the diameter of the third spring.
[0016] By adopting the above technical solution, the staff can directly put the first spring on the outside of the first limiting rod, then put the second spring on the outside of the second limiting rod, and put the third spring into the limiting sleeve.
[0017] Furthermore, the first limiting rod is fixedly connected to the first molding block, the second limiting rod is fixedly connected to the second molding block, and the limiting sleeve is fixedly connected to the third molding block.
[0018] By adopting the above technical solution, the horizontal displacement of the first, second, and third springs during the installation of the first, second, and third molding blocks can be avoided, which could cause the blocks to deviate from their positions or fall off.
[0019] Furthermore, the worm meshes with the worm wheel shaft, and the two bevel gears at both ends of the worm wheel shaft mesh with the two bevel gears at the top of the two bidirectional lead screws, respectively. A handwheel is fixed to one end of the worm.
[0020] By adopting the above technical solution, the operator rotates the worm to make the worm mesh with the worm wheel shaft for transmission. Then, the worm wheel shaft drives two bevel gears to rotate. The two bevel gears mesh with two bevel gears on two double-acting lead screws, thereby causing the two double-acting lead screws to rotate.
[0021] Furthermore, the limiting plate is threadedly connected to the bidirectional lead screw, and the limiting plate is slidably connected to the housing, with the limiting plate abutting against the limiting groove.
[0022] By adopting the above technical solution, the two bidirectional lead screws reverse to close the two limiting plates and enter the limiting groove, thus preventing the pin from falling off and completing the limiting.
[0023] Furthermore, a sheet material is provided between the upper mold and the lower mold, and the top of the lower mold is wavy.
[0024] By adopting the above technical solution, the workers place the sheet material on the top of the lower mold and then start the bending work. The upper mold is driven by the hydraulic structure to move downward, thus starting the bending work. After the bending is completed, the hydraulic structure drives the upper mold to move upward, so that the first forming block, the second forming block, the third forming block and the fourth forming block are separated from the sheet material. At this time, the workers can take away the sheet material to complete the unloading work.
[0025] In summary, the present invention has the following main advantages:
[0026] 1. This utility model utilizes a first forming block, pin, guide groove, and first spring. During bending, the upper die moves downward, and the first forming block, located at the bottom, contacts the sheet metal first, thus forming a V-groove through the first stamping. As the upper die continues to move downward, the first forming block cannot move further, and the first spring is compressed. At this point, the second forming block contacts the sheet metal, thus forming two more V-grooves through the second stamping. Subsequently, the second forming block cannot move further, and the second spring is compressed. At this point, the third forming block contacts the sheet metal, thus forming two more V-grooves through the third stamping. Subsequently, the third forming block cannot move further, and the third spring is compressed. At this point, the fourth forming block contacts the sheet metal, completing the final stamping and forming two more V-grooves, thereby completing the bending of the corrugated sheet. At this point, the bottoms of the first, second, third, and fourth forming blocks are flush, and force is applied to the sheet metal to continue pressing, achieving a shaping effect. This allows for multiple steps of stamping the sheet metal at once, thus completing the corrugated sheet forming process. The structure is simple, time-saving, and labor-saving.
[0027] 2. This utility model utilizes a worm gear, worm wheel shaft, bevel gears, double-acting lead screws, limiting plates, and limiting grooves. When it is necessary to disassemble, replace, or repair the first, second, and third forming blocks, simply rotate the worm gear to engage with the worm wheel shaft. The worm wheel shaft then drives two bevel gears to rotate, which in turn engage with two bevel gears on the two double-acting lead screws, causing the two double-acting lead screws to rotate. After rotation, the two double-acting lead screws, in conjunction with the housing, guide the limiting plates, causing them to open and separate from the limiting grooves. At this point, the pin can be pulled out of the guide groove to end the limiting of the first, second, and third forming blocks. It facilitates the removal of the first, second, and third molding blocks from the bottom of the upper mold. During installation, the first, second, and third molding blocks are also installed from the bottom of the upper mold. Then, the pins are passed through the guide groove to limit the first, second, and third molding blocks, preventing them from falling down and falling off. Subsequently, the worm gear is reversed to reverse the two lead screws. Then, through the meshing of the worm gear and worm wheel shaft and the meshing of four bevel gears, the two bidirectional lead screws are reversed, causing the two limiting plates to close and enter the limiting groove, preventing the pins from falling off and thus completing the limiting. It facilitates the disassembly, assembly, maintenance, or replacement of the three molding blocks.
[0028] 3. This utility model, through the setting of a first limiting rod, a second limiting rod, and a limiting sleeve, allows for the direct placement of the first spring outside the first limiting rod, the second spring outside the second limiting rod, and the third spring inside the limiting sleeve during the installation of the first, second, and third molding blocks. This prevents the first, second, and third springs from shifting horizontally during installation, thus avoiding positional deviation or falling off. It also facilitates the installation of the three types of springs. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of the structure of this utility model during bending;
[0030] Figure 2 This is a schematic diagram of the structure of this utility model before bending;
[0031] Figure 3 This is a cross-sectional structural diagram of the present invention;
[0032] Figure 4 This is a side sectional view of the present invention.
[0033] Figure 5 This is a schematic diagram of the third molding block structure of this utility model;
[0034] Figure 6 This is a schematic diagram of the exploded structure of the first molding block of this utility model;
[0035] Figure 7This is a schematic diagram of the side structure of the shell of this utility model;
[0036] Figure 8 This is a schematic diagram of the side structure of the limiting plate of this utility model.
[0037] In the diagram: 1. Upper mold; 2. Lower mold; 3. Sheet metal; 4. First forming block; 5. Second forming block; 6. Third forming block; 7. Fourth forming block; 8. Pin; 9. Guide groove; 10. First spring; 11. Second spring; 12. Third spring; 13. First limiting rod; 14. Second limiting rod; 15. Limiting sleeve; 16. Housing; 17. Worm gear; 18. Worm wheel shaft; 19. Bevel gear; 20. Double-acting lead screw; 21. Limiting plate; 22. Limiting groove. Detailed Implementation
[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0039] The embodiments of this utility model will be described below based on its overall structure.
[0040] Example 1:
[0041] A type of corrugated board bending forming die, such as Figures 1-6As shown, the system includes an upper mold 1 and a lower mold 2. A fourth forming block 7 is fixed to both sides of the bottom of the upper mold 1. Inside the upper mold 1, a first forming block 4, two second forming blocks 5, and two third forming blocks 6 are connected. The second forming blocks 5 are slidably connected to the first forming blocks 4 and the third forming blocks 6. The bottoms of the first forming blocks 4, second forming blocks 5, third forming blocks 6, and fourth forming blocks 7 are all rounded triangles. The third forming block 6 is slidably connected to the upper mold 1. A first spring 10 is provided on the top of the first forming block 4, a second spring 11 is provided on the top of the second forming block 5, and a third spring 12 is provided on the top of the third forming block 6. The diameter of the first forming block 4 is larger than the diameter of the second spring 11, and the diameter of the second spring 11 is larger than the diameter of the first spring 10. Guide grooves 9 are provided on both sides of the first forming block 4, the second forming block 5, and the third forming block 6. The height of the guide grooves on both sides of the third forming block 6 is less than the height of the guide grooves on both sides of the second forming block 5, and the height of the guide grooves on both sides of the second forming block 5 is less than the height of the guide grooves on both sides of the first forming block 4. A pin 8 passes through one side of the upper mold 1. The guide grooves 9 and pin 8 are slidably connected. Before bending begins, the fourth forming block 7 is fixed to the upper mold 1 and will not move downwards. The first forming block 4, the second forming block 5, and the third forming block 6 are subjected to gravity and the influence of the first spring 10 and the second spring 11. The elasticity of springs 11 and 12 causes the material to move downwards. At this time, the guide groove 9 and pin 8 limit the movement of the first forming block 4, the second forming block 5, and the third forming block 6. During this process, due to the different heights of the guide grooves 9 on the sides of the first forming block 4, the second forming block 5, the third forming block 6, and the fourth forming block 7 are distributed in a stepped pattern. During bending, the first forming block 4, located at the bottom, contacts the sheet metal 3 first, thus forming a V-groove by stamping the sheet metal 3 for the first time. As the upper die 1 continues to move downwards, the first forming block 4 cannot move further and the first spring 10 is compressed. At this time, the second forming block 5 and the sheet metal... When the material 3 comes into contact, the material 3 is stamped a second time to add two V-grooves; then the second forming block 5 cannot move down and the second spring 11 is compressed. At this time, the third forming block 6 comes into contact with the material 3, thus stamping the material 3 a third time to add two more V-grooves; then the third forming block 6 cannot move down and the third spring 12 is compressed. At this time, the fourth forming block 7 comes into contact with the material 3 to complete the final stamping and add two more V-grooves, thus completing the bending of the corrugated plate; at this time, the bottoms of the first forming block 4, the second forming block 5, the third forming block 6 and the fourth forming block 7 are flush, and force is applied to the material 3 to continue to pressurize it and achieve the shaping effect.
[0042] See Figures 1-4In the above embodiment, a sheet metal 3 is provided between the upper mold 1 and the lower mold 2. The top of the lower mold 2 is wavy. The worker places the sheet metal 3 on the top of the lower mold 2 and then starts the bending work. The upper mold 1 is driven by the hydraulic structure to move downward, thereby starting the bending work. After the bending is completed, the hydraulic structure drives the upper mold 1 to move upward, so that the first forming block 4, the second forming block 5, the third forming block 6 and the fourth forming block 7 are separated from the sheet metal 3. At this time, the worker can take away the sheet metal 3 to complete the unloading work.
[0043] Example 2:
[0044] Based on the above embodiment one, the following settings are now implemented to facilitate disassembly, repair, or replacement.
[0045] See Figure 1 , Figure 2 , Figure 3 , Figure 7 and Figure 8In the above embodiment, a limiting groove 22 is formed on the outer ring of the pin 8. A housing 16 is fixed on the other side of the upper mold 1. A worm 17 and a worm wheel shaft 18 are respectively connected to the upper part of the housing 16. The worm 17 meshes with the worm wheel shaft 18. A handwheel is fixed to one end of the worm 17. Two double-acting lead screws 20 are connected inside the housing 16. The top ends of the two double-acting lead screws 20 and both ends of the worm wheel shaft 18 are connected to bevel gears 19. The two bevel gears 19 at both ends of the worm wheel shaft 18 mesh with the two bevel gears 19 at the top ends of the two double-acting lead screws 20, respectively. Two mirror-mounted limiting plates 21 are connected between the two bidirectional lead screws 20. The limiting plates 21 are threadedly connected to the bidirectional lead screws 20 and slidably connected to the housing 16. The limiting plates 21 abut against the limiting grooves 22. When it is necessary to disassemble, replace, or repair the first forming block 4, the second forming block 5, and the third forming block 6, the operator rotates the worm gear 17 to engage with the worm wheel shaft 18 for transmission. Then, the worm wheel shaft 18 drives the two bevel gears 19 to rotate. Through the two bevel gears 19 and the two bevels on the two bidirectional lead screws 20, the transmission is completed. Gear 19 meshes, causing the two bidirectional lead screws 20 to rotate. After rotation, the two bidirectional lead screws 20 guide the limiting plate 21 in conjunction with the housing 16, causing the two limiting plates 21 to open and separate from the limiting groove 22. At this time, the operator can pull out the pin 8 from the guide groove 9 to end the limiting of the first molding block 4, the second molding block 5, and the third molding block 6, making it easier for the operator to remove the first molding block 4, the second molding block 5, and the third molding block 6 from the bottom of the upper mold 1; afterwards, the first molding block 4, the second molding block 5, and the third molding block 6 also... It is installed from the bottom of the upper mold 1. Then, the worker passes the pin 8 through the guide groove 9 to limit the first molding block 4, the second molding block 5 and the third molding block 6, so as to prevent the first molding block 4, the second molding block 5 and the third molding block 6 from falling down and falling off. Then, the worker reverses the worm gear 17 to reverse the two lead screws. Then, through the meshing of the worm gear 17 with the worm wheel shaft 18 and the meshing of the four bevel gears 19, the two bidirectional lead screws 20 are reversed, causing the two limiting plates 21 to close and enter the limiting groove 22, thus preventing the pin 8 from falling off and completing the limiting.
[0046] Example 3:
[0047] Based on the above embodiment one, the following settings are now adopted to facilitate the installation of the spring.
[0048] See Figure 4 , Figure 5 and Figure 6In the above embodiment, the first molding block 4 is fixedly connected to a first limiting rod 13, the diameter of which is smaller than the diameter of the first spring 10. The top of the second molding block 5 is fixedly connected to a second limiting rod 14, the diameter of which is smaller than the diameter of the second spring 11. The top of the third molding block 6 is fixedly connected to a limiting sleeve 15, the diameter of which is larger than the diameter of the third spring 12. When installing the first molding block 4, the second molding block 5 and the third molding block 6, the operator can directly put the first spring 10 on the outside of the first limiting rod 13, then put the second spring 11 on the outside of the second limiting rod 14, and put the third spring 12 into the limiting sleeve 15. This prevents the first spring 10, the second spring 11 and the third spring 12 from shifting horizontally during the installation of the first molding block 4, the second molding block 5 and the third molding block 6, which could cause them to deviate from their positions or fall off.
[0049] The implementation principle of this utility model is as follows: First, before bending begins, the fourth forming block 7 is fixed to the upper mold 1 and will not move downwards. Meanwhile, the first forming block 4, the second forming block 5, and the third forming block 6 move downwards due to gravity and the elasticity of the first spring 10, the second spring 11, and the third spring 12. At this time, the guide groove 9 and the pin 8 limit the first forming block 4, the second forming block 5, and the third forming block 6. During this period, due to the different heights of the guide grooves 9 on the sides of the first forming block 4, the second forming block 5, the third forming block 6, and the fourth forming block 7 are distributed in a stepped manner, such as... Figure 2 As shown;
[0050] The worker places sheet metal 3 on top of the lower die 2 and begins the bending process. The upper die 1, driven by a hydraulic structure, begins to move downwards. The first forming block 4, located at the bottom, contacts sheet metal 3 first, thus stamping sheet metal 3 for the first time to form a V-groove. As the upper die 1 continues to move downwards, the first forming block 4 cannot move further and the first spring 10 is compressed. At this time, the second forming block 5 contacts sheet metal 3, thus stamping sheet metal 3 for the second time to add two more V-grooves. Afterwards, the second forming block 5 cannot move further and the second spring 11 is compressed. At this time, the third forming block 6 contacts sheet metal 3, thus stamping sheet metal 3 for the third time to add two more V-grooves. Afterwards, the third forming block 6 cannot move further and the third spring 12 is compressed. At this time, the fourth forming block 7 contacts sheet metal 3 to complete the final stamping and add two more V-grooves, thus completing the bending of the corrugated plate. At this time, the bottoms of the first forming block 4, the second forming block 5, the third forming block 6, and the fourth forming block 7 are flush, and force is applied to sheet metal 3 to continue to pressurize it, achieving a shaping effect. Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown;
[0051] After bending is completed, the hydraulic structure drives the upper mold 1 to move upward, causing the first forming block 4, the second forming block 5, the third forming block 6, and the fourth forming block 7 to separate from the sheet metal 3. At this time, the worker can remove the sheet metal 3 to complete the unloading work. Furthermore, through the elastic force of the first spring 10, the second spring 11, and the third spring 12 combined with gravity, the first forming block 4, the second forming block 5, and the third forming block 6 move downward, causing the distribution of the first forming block 4, the second forming block 5, the third forming block 6, and the fourth forming block 7 to be stepped again, in order to facilitate the next bending.
[0052] When it is necessary to disassemble, replace, or repair the first molding block 4, the second molding block 5, and the third molding block 6, the operator rotates the worm gear 17 to mesh with the worm wheel shaft 18 for transmission. Then, the worm wheel shaft 18 drives the two bevel gears 19 to rotate. The two bevel gears 19 mesh with the two bevel gears 19 on the two double-acting screws 20, thereby causing the two double-acting screws 20 to rotate. After the two double-acting screws 20 rotate, they cooperate with the housing 16 to guide the limiting plate 21, thereby causing the two limiting plates 21 to open and separate from the limiting groove 22. At this time, the operator can pull out the pin 8 from the guide groove 9 to end the limiting of the first molding block 4, the second molding block 5, and the third molding block 6, making it convenient for the operator to disassemble the first molding block 4, the second molding block 5, and the third molding block 6 from the bottom of the upper mold 1.
[0053] When installing the first molding block 4, the second molding block 5, and the third molding block 6, the worker can directly slip the first spring 10 over the outside of the first limiting rod 13, then slip the second spring 11 over the outside of the second limiting rod 14, and finally place the third spring 12 into the limiting sleeve 15. This prevents the first spring 10, the second spring 11, and the third spring 12 from shifting horizontally during the installation of the first molding block 4, the second molding block 5, and the third molding block 6, which could cause them to deviate from their positions or fall off. Afterwards, the first molding block 4, the second molding block 5, and the third molding block 6 also... It is installed from the bottom of the upper mold 1. Then, the worker passes the pin 8 through the guide groove 9 to limit the first molding block 4, the second molding block 5 and the third molding block 6, so as to prevent the first molding block 4, the second molding block 5 and the third molding block 6 from falling down and falling off. Then, the worker reverses the worm gear 17 to reverse the two lead screws. Then, through the meshing of the worm gear 17 with the worm wheel shaft 18 and the meshing of the four bevel gears 19, the two bidirectional lead screws 20 are reversed, causing the two limiting plates 21 to close and enter the limiting groove 22, thus preventing the pin 8 from falling off and completing the limiting.
[0054] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A corrugated plate bending forming mold, comprising an upper mold (1) and a lower mold (2), characterized in that: The upper mold (1) has four forming blocks (7) fixed on both sides of its bottom. The upper mold (1) is connected to a first forming block (4), two second forming blocks (5) and two third forming blocks (6). The top of the first forming block (4) is provided with a first spring (10) and a first limiting rod (13). The top of the second forming block (5) is provided with a second spring (11) and a second limiting rod (14). The top of the third forming block (6) is provided with a third spring (12) and a limiting sleeve (15). The first forming block (4), the second forming block (5) and the third forming block (6) are respectively connected to a first forming block (4), a second forming block (5) and a third forming block (6). The molding block (6) has guide grooves (9) on both sides, and a pin (8) runs through one side of the upper mold (1); the pin (8) has a limiting groove (22) on its outer ring, and a housing (16) is fixed on the other side of the upper mold (1). A worm (17) and a worm wheel shaft (18) are connected to the upper part of the housing (16). Two bidirectional lead screws (20) are connected inside the housing (16), and bevel gears (19) are connected to the top of the two bidirectional lead screws (20) and both ends of the worm wheel shaft (18). Two mirror-mounted limiting plates (21) are connected between the two bidirectional lead screws (20).
2. The corrugated plate bending forming die according to claim 1, characterized in that: The second molding block (5) is slidably connected to the first molding block (4) and the third molding block (6), and the third molding block (6) is slidably connected to the upper mold (1).
3. The corrugated plate bending forming die according to claim 2, characterized in that: The guide groove (9) is slidably connected to the pin (8), and the height of the guide grooves on both sides of the third forming block (6) is less than the height of the guide grooves on both sides of the second forming block (5), and the height of the guide grooves on both sides of the second forming block (5) is less than the height of the guide grooves on both sides of the first forming block (4).
4. The corrugated plate bending forming die according to claim 3, characterized in that: The bottoms of the first molding block (4), the second molding block (5), the third molding block (6) and the fourth molding block (7) are all rounded triangles.
5. The corrugated plate bending forming die according to claim 1, characterized in that: The diameter of the third spring (12) is greater than the diameter of the second spring (11), and the diameter of the second spring (11) is greater than the diameter of the first spring (10).
6. The corrugated plate bending forming die according to claim 5, characterized in that: The diameter of the first limiting rod (13) is smaller than the diameter of the first spring (10), and the diameter of the second limiting rod (14) is smaller than the diameter of the second spring (11). The diameter of the limiting sleeve (15) is larger than the diameter of the third spring (12).
7. The corrugated plate bending forming die according to claim 6, characterized in that: The first limiting rod (13) is fixedly connected to the first molding block (4), and the second limiting rod (14) is fixedly connected to the second molding block (5). The limiting sleeve (15) is fixedly connected to the third molding block (6).
8. The corrugated plate bending forming die according to claim 1, characterized in that: The worm (17) meshes with the worm wheel shaft (18), and the two bevel gears (19) at both ends of the worm wheel shaft (18) mesh with the two bevel gears (19) at the top of the two double-acting screws (20), respectively. A handwheel is fixed at one end of the worm (17).
9. The corrugated plate bending forming die according to claim 8, characterized in that: The limiting plate (21) is threadedly connected to the bidirectional lead screw (20), and the limiting plate (21) is slidably connected to the housing (16). The limiting plate (21) abuts against the limiting groove (22).
10. The corrugated plate bending forming die according to claim 1, characterized in that: A sheet material (3) is provided between the upper mold (1) and the lower mold (2), and the top of the lower mold (2) is wavy.