A metal buckle cold bending forming device

Abstract

The application discloses a metal buckle cold bending forming device, which comprises a front bending device, a middle arc bending device, a low-frequency vibration device, a mounting table, a driving motor and a stamping device, the front bending device is fixedly connected with the middle arc bending device, the middle arc bending device is fixedly connected with the stamping device, the driving motor is provided with four groups, the driving motor is fixedly connected with the mounting table, the four groups of driving motors are arranged along the front bending device, the middle arc bending device and the stamping device in sequence, one group of driving motors close to the front bending device is in transmission connection with the front bending device, one group of driving motors close to the stamping device is in transmission connection with the stamping device, and two groups of driving motors close to the middle arc bending device are in transmission connection with the middle arc bending device, the low-frequency vibration device is provided with a plurality of groups, and the plurality of groups of low-frequency vibration devices are arranged on the front bending device and the middle arc bending device respectively, and the application relates to the technical field of cold bending forming equipment, and has the advantages of high production efficiency, convenient maintenance and good forming quality.

Description

Technical Field

[0001] This invention relates to the field of cold bending forming equipment technology, specifically to a metal buckle cold bending forming device. Background Technology

[0002] In recent years, due to the increasing demand for components that require cold bending, cold bending equipment and technology have developed rapidly. In the previous stage, it has gone through various operation methods such as manual hot bending, mechanical profile hot bending and cold bending, and roller bending.

[0003] In the cold bending of most steel materials, internal stress causes material deformation and reduces strength. The internal stress generated by bending is a force that cannot be completely eliminated; its impact can only be mitigated. During bending, the material experiences different internal stresses: the outer side of the neutral layer experiences expansion shear stress, while the inner side experiences compression stress. This difference in stress causes the neutral layer to shift inward, resulting in thinning of the material at the bend and reduced strength. A common method to reduce internal stress is annealing the steel to increase its strength. Summary of the Invention

[0004] The purpose of this invention is to provide a metal buckle cold bending forming device to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A metal buckle cold bending forming device includes a front bending device, a middle arc bending device, a low-frequency vibration device, a mounting platform, a drive motor, and a stamping device. The front bending device is fixedly connected to the middle arc bending device, and the middle arc bending device is fixedly connected to the stamping device. There are four sets of mounting platforms. One set of mounting platforms is fixedly connected to the front bending device, the set of mounting platforms away from the front bending device is fixedly connected to the stamping device, and the two middle sets of mounting platforms are fixedly connected to the middle arc bending device. There are four sets of drive motors, and the drive motors are fixedly connected to the mounting platforms. The four sets of drive motors are arranged sequentially along the front bending device, the middle arc bending device, and the stamping device. The set of drive motors close to the front bending device is driven by the front bending device, the set of drive motors close to the stamping device is driven by the stamping device, and the two sets of drive motors close to the middle arc bending device are driven by the middle arc bending device. There are several sets of low-frequency vibration devices, which are respectively installed on the front bending device and the middle arc bending device.

[0006] The flat steel plate enters the device through the pre-bending device, where the first and second steps of vertical bending are completed. Simultaneously, a low-frequency vibration device continuously vibrates the steel plate at the midpoint between the two bends to counteract the internal stress during bending. Multiple-segment bending effectively disperses and reduces the internal stress at the bends, preventing the external stress from exceeding the internal stress and causing the steel plate to thin at the bend. The steel plate, after completing the first two bends in the pre-bending device, is then conveyed to the central arc bending device, where it undergoes upper and lower arc bending. Finally, the steel plate is conveyed to the stamping device for stamping the final wave structure.

[0007] Furthermore, the front bending device includes a first folding mechanism and a second folding mechanism, the first folding mechanism and the second folding mechanism are fixedly connected, and the second folding mechanism is fixedly connected to the central arc bending device.

[0008] After the steel plate enters the pre-bending device, the first folding mechanism folds the side of the steel plate closest to the drive motor vertically. After the side of the steel plate closest to the drive motor is folded to a vertical state, the second folding mechanism folds the side of the steel plate away from the drive motor vertically.

[0009] Furthermore, the first folding mechanism includes a first base plate, a sliding platform, a drive shaft, rolling rollers, a transmission seat, a driven shaft, and a bending pad. The first base plate is fixedly connected to the second folding mechanism. Several sets of sliding platforms are disposed on the first base plate. The drive motor is connected to the drive shaft. Several sets of rolling rollers are provided. The set of rolling rollers closest to the drive motor is connected to the drive shaft. Several sets of transmission seats are provided. The set of transmission seats closest to the drive motor is disposed on the drive shaft. The remaining transmission seats are disposed on the driven shaft. The driven shaft is connected to the remaining rolling rollers. Adjacent transmission seats are connected by belt drive. Several sets of bending pads are provided. The bending pads are fixedly connected to the sliding platform.

[0010] When the first folding mechanism folds the steel plate, the steel plate enters from the side closest to the drive motor. The steel plate moves in the gap between the rolling roller and the sliding platform under the drive of the rotating rolling roller. The rolling roller is driven by the drive motor to drive the drive shaft through the belt transmission seat so that all the rolling rollers rotate at the same speed, driving the steel plate forward. One side of the steel plate is gradually folded up under the action of the rolling roller and the bending pad.

[0011] Furthermore, the angle between the rolling surface of the roller and the sliding platform gradually increases along the axial direction, and the platform surface of the bending pad is arranged parallel to the rolling surface of the roller.

[0012] As the angle between the rolling surface of the roller and the surface of the bending pad and the sliding platform gradually increases, one side of the steel plate between the roller and the sliding platform is gradually folded up to a vertical state. One side of the bending pad is rounded to prevent the steel plate from sliding smoothly into the next bending pad.

[0013] Furthermore, the central arc bending device includes an upper arc bending mechanism and a lower arc bending mechanism. The upper arc bending mechanism is fixedly connected to the front bending device, the upper arc bending mechanism is fixedly connected to the lower arc bending mechanism, and the lower arc bending mechanism is fixedly connected to the stamping device.

[0014] After the steel plate with both sides vertically bent enters the central arc bending device, the upper arc bending mechanism first performs an upper arc bend on the side of the steel plate away from the drive motor. After completion, the lower arc bending mechanism performs a lower arc bend on the part that has completed the upper arc bend.

[0015] Furthermore, the low-frequency vibration device includes a mounting frame and a vibration mechanism. The mounting frame is fixedly connected to the first base plate, and the vibration mechanism is fixedly connected to the mounting frame.

[0016] During the cold bending process, the steel plate passes through the mounting frame of the low-frequency vibration device. The vibration mechanism is arranged between the two sides of the steel plate when it is bent vertically. The two sides of the steel plate pass vertically through the two sides of the vibration mechanism. The vibration mechanism works continuously to vibrate the steel plate at a low frequency during the transmission of the steel plate.

[0017] Furthermore, the vibration mechanism includes a housing, a gear mechanism, a gear connector, a bevel gear set, a servo motor, and an inner housing. The housing is fixedly connected to the mounting bracket, the gear mechanism is fixedly connected to the housing, the gear connector meshes with the tooth surface of the gear mechanism, the bevel gear set meshes with the tooth surface of the gear connector, the servo motor is connected to the bevel gear set for transmission, the bevel gear set is fixedly connected to the inner housing, and the inner housing is slidably connected to the housing.

[0018] When the vibration mechanism vibrates the steel plate, the servo motor transmits torque to the bevel gear set, which in turn drives the gear connector. The gear connector and the bevel gear set mesh with the gear teeth through tooth surfaces. The torque output by the servo motor is converted by the bevel gear set into the gear connector moving axially along the gear teeth. The gear connector drives the inner shell to reciprocate vertically within the outer shell. The axial vertical movement of the inner shell repeatedly strikes two vertical positions on the steel plate, causing low-frequency vibrations to the steel plate and counteracting the internal stress when the steel plate is bent.

[0019] Furthermore, the stamping device includes a second base plate, a support column, a mounting plate, a push cylinder, a stamping die, a fixed platform, and a conveyor wheel. The second base plate is fixedly connected to the centrally located arc bending device, the support column is fixedly connected to the second base plate, the mounting plate is fixedly connected to the support column, the push cylinder is fixedly connected to the mounting plate, the stamping die is driven by the push cylinder, the fixed platform is fixedly connected to the second base plate, and the conveyor wheel is driven by the drive motor.

[0020] After the steel plate is bent on the side away from the drive motor, it enters the stamping device. One side of the steel plate is fixed on the fixed platform. The stamping die is pushed by the push cylinder to stamp the lower side of the bend, and the lower side of the bend is stamped into a wave shape. The conveyor wheel unloads the stamped metal plate, which is then cut into metal clips after being cold-bent.

[0021] Compared with existing technologies, the beneficial effects achieved by this invention are as follows: This invention designs a modular cold bending forming device that can perform step-by-step cold bending forming of steel plates, simultaneously cold bending the entire steel plate, and then cutting and dividing it to obtain multiple formed metal buckles. Compared with simple stamping forming, this significantly improves the production speed of metal buckles. The modular design facilitates the maintenance of the device. If a part of the cold bending is unqualified, only the bending equipment corresponding to the unqualified part needs to be repaired. Based on cold bending forming, this invention designs a low-frequency vibration device, which can effectively reduce the deformation caused by internal stress during cold bending of the steel plate, greatly improving the quality of cold-bent parts. This invention has the advantages of high production efficiency, convenient maintenance, and good forming quality. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the front bending device structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the first folding mechanism of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the rolling roller and bending pad of the present invention;

[0027] Figure 5 This is a schematic diagram of the centrally located arc bending device of the present invention;

[0028] Figure 6 This is a schematic diagram of the stamping device structure of the present invention;

[0029] Figure 7 This is a schematic diagram of the low-frequency vibration device of the present invention;

[0030] Figure 8 This is a schematic diagram of the cold-bent metal buckle structure of the present invention;

[0031] Figure 9 This is a schematic diagram of the cold bending process of the present invention;

[0032] In the diagram: 1. Front bending device; 11. First bending mechanism; 111. First base plate; 112. Sliding platform; 113. Drive shaft; 114. Roller; 115. Transmission seat; 116. Driven shaft; 117. Bending pad; 12. Second bending mechanism; 2. Central arc bending device; 21. Upper arc bending mechanism; 22. Lower arc bending mechanism; 3. Low-frequency vibration device; 31. Mounting frame; 32. Vibration mechanism; 321. Outer shell; 322. Gear condition; 323. Gear connector; 324. Bevel gear set; 325. Servo motor; 326. Inner shell; 4. Mounting platform; 5. Drive motor; 6. Stamping device; 61. Second base plate; 62. Support column; 63. Mounting plate; 64. Push cylinder; 65. Stamping die; 66. Fixed platform; 67. Conveyor wheel. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] The present invention provides the following technical solution:

[0035] like Figure 1 , Figure 8 , Figure 9 As shown, the forming device includes a front bending device 1, a middle arc bending device 2, a low-frequency vibration device 3, a mounting platform 4, a drive motor 5, and a stamping device 6. The front bending device 1 is fixedly connected to the middle arc bending device 2, and the middle arc bending device 2 is fixedly connected to the stamping device 6. The mounting platform 4 has four sets: one set is fixedly connected to the front bending device 1, the set furthest from the front bending device 1 is fixedly connected to the stamping device 6, and the two middle sets are fixedly connected to the middle arc bending device 2. The drive motor 5 has four sets, driving... Motor 5 is fixedly connected to mounting platform 4. Four sets of drive motors 5 are arranged sequentially along front bending device 1, middle arc bending device 2, and stamping device 6. One set of drive motors 5 close to front bending device 1 is connected to front bending device 1, one set of drive motors 5 close to stamping device 6 is connected to stamping device 6, and two sets of drive motors 5 close to middle arc bending device 2 are connected to middle arc bending device 2. Several sets of low-frequency vibration devices 3 are provided, and several sets of low-frequency vibration devices 3 are respectively installed on front bending device 1 and middle arc bending device 2.

[0036] The flat steel plate enters the device through the pre-bending device 1, where the first and second steps of vertical bending of the steel plate are completed. During bending, the low-frequency vibration device 3 continuously vibrates the middle position of the two bends of the steel plate at a low frequency to offset the internal stress during bending. At the same time, the multi-segment bending can effectively disperse and reduce the internal stress at the bend of the steel plate, thereby reducing the internal stress at the bend and preventing the neutral layer from shifting inward due to internal stress, which would cause the steel plate to become thinner at the bend. The steel plate that has completed the first two bends in the pre-bending device 1 is conveyed to the central arc bending device 2, where the steel plate completes the upper and lower arc bends. After completion, the steel plate is conveyed to the stamping device 6 to stamp and form the final wave structure.

[0037] like Figure 2 As shown, the front bending device 1 includes a first folding mechanism 11 and a second folding mechanism 12. The first folding mechanism 11 and the second folding mechanism 12 are fixedly connected, and the second folding mechanism 12 is fixedly connected to the center arc bending device 2.

[0038] After the steel plate enters the pre-bending device 1, the first folding mechanism 11 folds the side of the steel plate closest to the drive motor 5 vertically. After the side of the steel plate closest to the drive motor 5 is folded to a vertical state, the second folding mechanism 12 folds the side of the steel plate away from the drive motor 5 vertically.

[0039] like Figure 3 As shown, the first folding mechanism 11 includes a first base plate 111, a sliding platform 112, a drive shaft 113, a rolling roller 114, a transmission seat 115, a driven shaft 116, and a bending pad 117. The first base plate 111 is fixedly connected to the second folding mechanism 12. Several sets of sliding platforms 112 are arranged on the first base plate 111. The drive motor 5 is connected to the drive shaft 113. Several sets of rolling rollers 114 are provided. The set of rolling rollers 114 near the drive motor 5 is connected to the drive shaft 113. Several sets of transmission seats 115 are provided. The set of transmission seats 115 near the drive motor 5 is arranged on the drive shaft 113. The remaining transmission seats 115 are arranged on the driven shaft 116. The driven shaft 116 is connected to the remaining rolling rollers 114. Adjacent transmission seats 115 are connected by belt drive. Several sets of bending pads 117 are provided. The bending pads 117 are fixedly connected to the sliding platform 112.

[0040] When the first folding mechanism 11 folds the steel plate, the steel plate enters from the side closest to the drive motor 5. The steel plate moves in the gap between the rolling roller 114 and the sliding platform 112 under the drive of the rotation of the rolling roller 114. The rolling roller 114 is driven by the drive motor 5 to drive the drive shaft 113 through the belt drive transmission seat 115, so that all the rolling rollers 114 rotate at the same speed, driving the steel plate forward. One side of the steel plate is gradually folded up under the action of the rolling roller 114 and the bending pad 117.

[0041] like Figure 4 As shown, the angle between the rolling surface of the rolling roller 114 and the sliding platform 112 gradually increases along the axial direction, and the platform of the bending pad 117 is arranged parallel to the rolling surface of the rolling roller 114.

[0042] As the angle between the rolling surface of the rolling roller 114 and the table surface of the bending pad 117 and the sliding platform 112 gradually increases, one side of the steel plate between the rolling roller 114 and the sliding platform 112 is gradually folded up to a vertical state. One side of the bending pad 117 is rounded to prevent the steel plate from sliding smoothly into the next bending pad 117.

[0043] like Figure 5 As shown, the central arc bending device 2 includes an upper arc bending mechanism 21 and a lower arc bending mechanism 22. The upper arc bending mechanism 21 is fixedly connected to the front bending device 1, the upper arc bending mechanism 21 is fixedly connected to the lower arc bending mechanism 22, and the lower arc bending mechanism 22 is fixedly connected to the stamping device 6.

[0044] After the steel plate with both sides vertically bent enters the central arc bending device 2, the upper arc bending mechanism 21 first performs an upper arc bend on the side of the steel plate away from the drive motor 5. After completion, the lower arc bending mechanism 22 performs a lower arc bend on the part that has completed the upper arc bend.

[0045] like Figure 7 As shown, the low-frequency vibration device 3 includes a mounting frame 31 and a vibration mechanism 32. The mounting frame 31 is fixedly connected to the first base plate 111, and the vibration mechanism 32 is fixedly connected to the mounting frame 31.

[0046] During the cold bending process, the steel plate passes through the mounting frame 31 of the low-frequency vibration device 3. The vibration mechanism 32 is arranged between the two vertical bends of the steel plate. The steel plate passes through the two vertical bends of the vibration mechanism 32 on both sides. The vibration mechanism 32 continuously works to vibrate the steel plate at a low frequency during the transmission of the steel plate.

[0047] like Figure 7 As shown, the vibration mechanism 32 includes a housing 321, a gear condition 322, a gear connector 323, a bevel gear set 324, a servo motor 325, and an inner housing 326. The housing 321 is fixedly connected to the mounting bracket 31, the gear condition 322 is fixedly connected to the housing 321, the gear connector 323 meshes with the tooth surface of the gear condition 322, the bevel gear set 324 meshes with the tooth surface of the gear connector 323, the servo motor 325 is drivenly connected to the bevel gear set 324, the bevel gear set 324 is fixedly connected to the inner housing 326, and the inner housing 326 is slidably connected to the housing 321.

[0048] When the vibration mechanism 32 vibrates the steel plate, the servo motor 325 transmits torque to the bevel gear set 324, the bevel gear set 324 drives the gear connector 323, and the gear connector 323, the bevel gear set 324 and the gear condition 322 are all meshed through the tooth surface. The torque output by the servo motor 325 is converted by the bevel gear set 324 into the gear connector 323 moving axially along the gear condition 322. The gear connector 323 drives the inner shell 326 to move vertically back and forth in the outer shell 321. The axial vertical movement of the inner shell 326 repeatedly strikes the steel plate at two vertical positions, causing low-frequency vibration to the steel plate and offset the internal stress when the steel plate is bent.

[0049] like Figure 6 As shown, the stamping device 6 includes a second base plate 61, a support column 62, a mounting plate 63, a push cylinder 64, a stamping die 65, a fixed platform 66, and a conveyor wheel 67. The second base plate 61 is fixedly connected to the centrally located arc bending device 2, the support column 62 is fixedly connected to the second base plate 61, the mounting plate 63 is fixedly connected to the support column 62, the push cylinder 64 is fixedly connected to the mounting plate 63, the stamping die 65 is driven by the push cylinder 64, the fixed platform 66 is fixedly connected to the second base plate 61, and the conveyor wheel 67 is driven by the drive motor 5.

[0050] After the steel plate completes the arc bend on the side away from the drive motor 5, it enters the stamping device 6. One side of the arc bend of the steel plate is fixed on the fixed table 66. The push cylinder 64 pushes the stamping die 65 to stamp the lower side of the arc bend, stamping the lower side of the arc bend into a wave shape. The conveyor wheel 67 unloads the stamped metal plate, waiting for the subsequent cold-bent metal plate to be divided into metal buckles.

[0051] The working principle of this invention: A flat steel plate enters the device through a pre-bending device 1. The first and second steps of vertical bending of the steel plate are completed in the pre-bending device 1. When the first folding mechanism 11 folds the steel plate, the steel plate enters from the side closest to the drive motor 5. The steel plate moves in the gap between the rolling roller 114 and the sliding platform 112, driven by the rotation of the rolling roller 114. The rolling roller 114 is driven by the drive motor 5, which drives the drive shaft 113 through a belt drive transmission seat 115, thus all the rolling rollers 114 rotate at the same speed, driving the steel plate forward. One side of the steel plate is gradually folded up under the action of the rolling roller 114 and the bending pad 117. Simultaneously, when the steel plate is vibrated, the vibration mechanism 32 transmits torque to the bevel gear set 324 via a servo motor 325. The bevel gear set 324 drives the gear connector 323, and the gear connector 323 and the bevel gear set 324... 4. The gears 322 and 4 are meshed through the tooth surfaces. The torque output by the servo motor 325 is converted into the gear connector 323 through the bevel gear set 324 and moves along the axial direction of the gears 322. The gear connector 323 drives the inner shell 326 to reciprocate vertically within the outer shell 321. The axial vertical movement of the inner shell 326 repeatedly strikes the two vertical positions of the steel plate, causing low-frequency vibration to the steel plate and offset the internal stress when the steel plate is bent. At the same time, the multi-segment bending can effectively disperse and reduce the internal stress at the bending point of the steel plate, and avoid the neutral layer from shifting inward due to internal stress at the bending point of the steel plate, which would cause the steel plate to become thinner at the bending point. The steel plate that has completed the first two bending steps in the pre-bending device 1 is transported to the central arc bending device 2. The steel plate completes the upper and lower arc bending in the central arc bending device 2. After completion, the steel plate is transported to the stamping device 6 to stamp the final wave structure.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0053] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cold bending forming device for metal buckles, characterized in that: The forming device includes a front bending device (1), a middle arc bending device (2), a low-frequency vibration device (3), a mounting platform (4), a drive motor (5), and a stamping device (6). The front bending device (1) is fixedly connected to the middle arc bending device (2), and the middle arc bending device (2) is fixedly connected to the stamping device (6). The mounting platform (4) has four sets: one set is fixedly connected to the front bending device (1), the set of mounting platforms (4) furthest from the front bending device (1) is fixedly connected to the stamping device (6), and the two middle sets of mounting platforms (4) are fixedly connected to the middle arc bending device (2). The drive motor (5) has four sets. The motor (5) is fixedly connected to the mounting platform (4). The four sets of drive motors (5) are arranged sequentially along the front bending device (1), the middle arc bending device (2), and the stamping device (6). The set of drive motors (5) close to the front bending device (1) is connected to the front bending device (1) through transmission. The set of drive motors (5) close to the stamping device (6) is connected to the stamping device (6) through transmission. The two sets of drive motors (5) close to the middle arc bending device (2) are connected to the middle arc bending device (2) through transmission. The low-frequency vibration device (3) is provided in several sets. The several sets of low-frequency vibration devices (3) are respectively provided on the front bending device (1) and the middle arc bending device (2). The low-frequency vibration device (3) includes a mounting frame (31) and a vibration mechanism (32). The mounting frame (31) is fixedly connected to the first base plate (111), and the vibration mechanism (32) is fixedly connected to the mounting frame (31). The vibration mechanism (32) includes a housing (321), a gear condition (322), a gear connector (323), a bevel gear set (324), a servo motor (325), and an inner housing (326). The housing (321) is fixedly connected to the mounting bracket (31). The gear condition (322) is fixedly connected to the housing (321). The gear connector (323) meshes with the tooth surface of the gear condition (322). The bevel gear set (324) meshes with the tooth surface of the gear connector (323). The servo motor (325) is drivenly connected to the bevel gear set (324). The bevel gear set (324) is fixedly connected to the inner housing (326). The inner housing (326) is slidably connected to the housing (321).

2. The metal buckle cold bending forming device according to claim 1, characterized in that: The front bending device (1) includes a first folding mechanism (11) and a second folding mechanism (12). The first folding mechanism (11) and the second folding mechanism (12) are fixedly connected, and the second folding mechanism (12) is fixedly connected to the central arc bending device (2).

3. The metal buckle cold bending forming device according to claim 2, characterized in that: The first folding mechanism (11) includes a first base plate (111), a sliding platform (112), a drive shaft (113), a rolling roller (114), a transmission seat (115), a driven shaft (116), and a bending pad (117). The first base plate (111) is fixedly connected to the second folding mechanism (12). Several sets of sliding platforms (112) are disposed on the first base plate (111). The drive motor (5) is connected to the drive shaft (113) in a transmission manner. Several sets of rolling rollers (114) are provided, with one set of rollers close to the drive motor (5). The pressure roller (114) is connected to the drive shaft (113) for transmission. The transmission seat (115) is provided in several groups. One group of transmission seats (115) near the drive motor (5) is located on the drive shaft (113), and the remaining transmission seats (115) are located on the driven shaft (116). The driven shaft (116) is connected to the remaining rolling roller (114) for transmission. Adjacent transmission seats (115) are connected by belt transmission. The bending pad (117) is provided in several groups, and the bending pad (117) is fixedly connected to the sliding platform (112).

4. The metal buckle cold bending forming device according to claim 3, characterized in that: The angle between the rolling surface of the rolling roller (114) and the sliding platform (112) gradually increases along the axial direction, and the platform of the bending pad (117) is arranged parallel to the rolling surface of the rolling roller (114).

5. The metal buckle cold bending forming device according to claim 1, characterized in that: The central arc bending device (2) includes an upper arc bending mechanism (21) and a lower arc bending mechanism (22). The upper arc bending mechanism (21) is fixedly connected to the front bending device (1), the upper arc bending mechanism (21) is fixedly connected to the lower arc bending mechanism (22), and the lower arc bending mechanism (22) is fixedly connected to the stamping device (6).

6. The metal buckle cold bending forming device according to claim 1, characterized in that: The stamping device (6) includes a second base plate (61), a support column (62), a mounting plate (63), a push cylinder (64), a stamping die (65), a fixed platform (66), and a conveyor wheel (67). The second base plate (61) is fixedly connected to the central arc bending device (2). The support column (62) is fixedly connected to the second base plate (61). The mounting plate (63) is fixedly connected to the support column (62). The push cylinder (64) is fixedly connected to the mounting plate (63). The stamping die (65) is driven by the push cylinder (64). The fixed platform (66) is fixedly connected to the second base plate (61). The conveyor wheel (67) is driven by the drive motor (5).

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