Metal buckle punch forming device

Abstract

The invention discloses a metal buckle punch forming device, and belongs to the technical field of metal punching equipment, the metal buckle punch forming device comprises a workbench, a rotating table, a first punching male die and a second punching male die, the rotating table is rotatably mounted in the center of the workbench, a mounting frame is arranged above the rotating table, and a supporting column is arranged in the center of the mounting frame; the supporting column penetrates through the center of the rotating table and then is fixedly connected with the working table, six stamping female dies which are distributed at equal angles are arranged on the rotating table, and the number of the first stamping male dies and the number of the second stamping male dies are both two. According to the metal button forming machine, the three procedures of blanking, stretching forming and discharging can be conducted in sequence, two metal buttons can be formed in unit time, automatic control can be achieved, the production efficiency of the metal buttons is effectively improved, and manual material taking is not needed.

Description

Technical Field

[0001] The present invention discloses a metal buckle stamping and forming device, belonging to the technical field of metal stamping equipment. Background Art

[0002] A stamping die is a special process equipment that processes materials (metals or non-metals) into parts (or semi-finished products) in cold stamping processing, called a cold stamping die (commonly known as a cold punching die). Stamping is a pressure processing method that applies pressure to materials using a die installed on a press at room temperature to cause separation or plastic deformation, so as to obtain the required parts. In the process of producing metal fasteners, the stamping process is widely used. In the field of shoes and clothing, the metal buckles used are also formed by stamping equipment. As Figure 1 shown is a common metal buckle 1. When the existing stamping equipment stamps the metal buckle 1, it relies on a single metal strip to be fed under the punch. Then, the punch punches, stretches, and bends the metal strip, and after forming, it is necessary to manually take out the metal buckle 1. Using this blanking method, it is very dependent on manual operation, not only with low production efficiency, but also with potential safety hazards. At the same time, only one metal buckle 1 can be stamped per unit time, which greatly limits the production efficiency. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems in the prior art, and provide a metal buckle stamping and forming device.

[0004] The present invention realizes the above purpose through the following technical solutions. A metal buckle stamping and forming device includes a workbench, a rotating table, a first stamping punch and a second stamping punch. The rotating table is rotatably installed at the center of the workbench, and an installation frame is arranged above the rotating table. A support column is arranged at the center of the installation frame. The support column passes through the center of the rotating table and is fixedly connected to the workbench. Six equally angularly distributed stamping dies are arranged on the rotating table. Two first stamping punches and two second stamping punches are both provided and arranged above the corresponding stamping dies on the installation frame. The two first stamping punches and the two second stamping punches are symmetrically arranged at 180° with the support column as the center. A cylinder for driving the first stamping punch and the second stamping punch to vertically lift and lower is arranged on the installation frame. A first power component for driving the rotating table to intermittently rotate 60° is arranged on the workbench, and two parallel feeding mechanisms are arranged on the workbench. The feeding directions of the two metal strips of the two feeding mechanisms are the same. Among them, two of the stamping dies and the two first stamping punches are located on the upper and lower sides of the metal strip feeding direction. A pushing component for ejecting the metal buckle from the stamping die is also arranged on the workbench.

[0005] Preferably, the first stamping punch includes a first punch, a first pressure plate, a first limit bolt, and a first spring. The upper end of the first punch is fixedly connected to the piston of the cylinder, and the lower end thereof penetrates through the first pressure plate. A fixing portion is provided in the middle of the first punch. Four first limit bolts and four first springs are provided. The first limit bolts pass through the fixing portion and are fixedly connected to the first pressure plate. The first spring is sleeved outside the first limit bolt and applies a downward acting force on the first pressure plate. The stamping die includes a fixed sleeve, a movable sleeve, a second spring, and a movable rod. The fixed sleeve is fixedly connected to the rotating table by bolts. The movable sleeve has a convex structure and is slidably arranged inside the fixed sleeve. A first through hole matching the first punch is provided in the fixed sleeve. The middle of the movable sleeve is matched with the first through hole, and a second through hole is provided at the center of the movable sleeve. One end of the movable rod is matched with the second through hole, and the other end penetrates through the rotating table. A ring convex is provided in the middle of the movable rod. A plurality of second springs are provided, and both ends thereof are respectively in contact with the movable sleeve and the fixed sleeve.

[0006] Preferably, the second stamping punch includes a second punch, a third punch, a second pressure plate, and a limiting component. The second punch is located between the third punch and the second pressure plate, and all three have a convex structure. A plurality of limiting components are provided, which include a second limit bolt, a fourth spring, a third spring, and a nut. The second limit bolt penetrates through the second punch and the third punch and is fixedly connected to the second pressure plate. The third punch is fixedly connected to the cylinder. The nut is threadedly connected to the middle of the second limit bolt, and the nut is located between the fourth spring and the second punch. Both the third spring and the fourth spring are sleeved outside the second limit bolt. Both ends of the third spring are respectively in contact with the second pressure plate and the second punch. A counterbore for accommodating the third spring is provided on the second punch. Both ends of the fourth spring are respectively in contact with the nut and the third punch, and after assembly, the elastic force of the fourth spring is greater than that of the third spring. A boss penetrating through the second pressure plate is provided on the second punch. A punch penetrating through the boss is provided on the third punch. A blanking hole is provided at the center of the movable rod. The blanking hole is a stepped hole structure, and the diameter of its smaller end is equal to the diameter of the punch. A waste discharging hole is provided on the workbench corresponding to the lower part of the first punch.

[0007] Preferably, the pushing member includes a fourth spring, a pulley, and a pressing platform. One end of the movable rod away from the movable sleeve is fixedly installed with a cross bar. The fourth spring is sleeved on the movable rod and applies a downward force to the cross bar. A limiting portion for restricting the rotation of the movable rod is provided on the movable rod. There are two pulleys and two pressing platforms. The pulleys are rotatably installed on the cross bar by bolts. The two pressing platforms are both in an arc structure and are arranged in a staggered manner with the first stamping punch and the second stamping punch. One end of the pressing platform is provided with a guiding and sliding inclined surface. A limiting rod for controlling the upward sliding distance of the movable sleeve is provided on the movable sleeve.

[0008] Preferably, the feeding mechanism includes a guiding strip, a first gear, a transmission member, and a driving member. There are two guiding strips, which are fixed on the workbench. The first gear is fixed on the rotating table. The driving member includes a second gear, a first bevel gear, a second bevel gear, and a transmission shaft. The two ends of the transmission shaft are rotatably connected to the two guiding strips. A rotating shaft is connected between the first bevel gear and the second gear. Fixing blocks for installing the transmission member and the rotating shaft are provided on the workbench. The transmission member meshes and drives with the first gear and the second gear. One of the transmission members is composed of a first gear shaft, and the other transmission member is composed of a first gear shaft and a second gear shaft.

[0009] Preferably, the first power member includes a motor, a third gear, and a fourth gear. The motor is fixed on the workbench. The third gear is fixed on the output shaft of the motor. The fourth gear is fixed at the bottom of the rotating table and meshes with the third gear for transmission. A pressing block for restricting the upward movement of the fourth gear is provided on the workbench.

[0010] Preferably, a material blocking frame is provided above the workbench corresponding to the pressing platform. The material blocking frame is in a U-shaped structure and is used to guide the formed metal buckle to the side of the workbench.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] 1. By providing two first stamping punches, two second stamping punches, and six stamping dies, which are arranged symmetrically in two groups and divided into three processes of blanking, stretching and forming, and unloading according to different positions, two metal strips can be stamped and processed, and two metal buckles can be formed at one time, which can effectively improve the production efficiency.

[0013] 2. By providing a pushing member and a material blocking frame, relying on the pushing member, during the rotation of the rotating table, the formed metal buckle can be automatically pushed out to the surface of the rotating table. When rotating with the rotating table, the metal buckle is restricted within the material blocking frame. When the number of metal buckles increases, it can fall off from the side of the workbench by relying on the mutual thrust, without manual material taking. The whole process can be automatically controlled. Description of the Drawings

[0014] Figure 1 Structural schematic diagram of the metal buckle of the present invention;

[0015] Figure 2 Structural schematic diagram of a stamping and forming device for the metal buckle of the present invention;

[0016] Figure 3 Structural schematic of the rotating table and the feeding mechanism in the present invention Figure 1 ;

[0017] Figure 4 Structural schematic of the rotating table and the feeding mechanism in the present invention Figure 2 ;

[0018] Figure 5 Structural schematic diagram of the stamping female die, the first power component and the material pushing component in the present invention;

[0019] Figure 6 Structural schematic diagram of the rotating table and the stamping female die in the present invention;

[0020] Figure 7 Partial sectional view of the rotating table and the stamping female die in the present invention;

[0021] Figure 8 Partial sectional view of the rotating table, the stamping female die and the material pushing component in the present invention;

[0022] Figure 9 Stereoscopic sectional view of the first stamping male die and the stamping female die in the present invention;

[0023] Figure 10 Stereoscopic sectional view of the second stamping male die and the stamping female die in the present invention;

[0024] Reference numerals: 1, metal buckle; 2, cylinder; 3, mounting bracket; 4, rotating table; 5, stamping female die; 6, workbench; 7, second stamping punch; 8, feeding mechanism; 9, first stamping punch; 10, guide bar; 11, first gear; 12, first gear shaft; 13, second gear shaft; 14, second gear; 15, transmission shaft; 16, second bevel gear; 17, first bevel gear; 18, fourth gear; 19, motor; 20, third gear; 21, fixed block; 22, guide sliding slope; 23, pressing table; 24, pulley; 25, waste discharging hole; 26, pushing member; 27, pressing block; 28, movable rod; 29, fifth spring; 30, cross bar; 31, fixed sleeve; 32, second spring; 33, movable sleeve; 34, annular projection; 35, blanking hole; 36, limiting rod; 37, metal disc; 38, first spring; 39, first limit bolt; 40, first punch; 41, fixing portion; 42, first pressure plate; 43, second through hole; 44, first through hole; 45, second pressure plate; 46, convex platform; 47, nut; 48, fourth spring; 49, third punch; 50, punch head; 51, second limit bolt; 52, second punch; 53, sunk groove; 54, third spring; 55, support column; 56, blanking rack. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] Such as Figures 1 - 10As shown in the figure, a metal buckle stamping device includes a workbench 6, a rotating table 4, a first stamping punch 9 and a second stamping punch 7. The rotating table 4 is rotatably installed at the center of the workbench 6, and an installation frame 3 is arranged above the rotating table 4. A support column 55 is arranged at the center of the installation frame 3. The support column 55 passes through the center of the rotating table 4 and is fixedly connected to the workbench 6. Six stamping dies 5 are arranged on the rotating table 4 at equal angles. There are two first stamping punches 9 and two second stamping punches 7, and they are arranged above the stamping dies 5 corresponding to the installation frame 3. The two first stamping punches 9 and the two second stamping punches 7 are symmetrically arranged at 180° with the support column 55 as the center. A cylinder 2 for driving the first stamping punch 9 and the second stamping punch 7 to move vertically up and down is arranged on the installation frame 3. A first power member for driving the rotating table 4 to intermittently rotate 60° is arranged on the workbench 6. And two parallel feeding mechanisms 8 are arranged on the workbench 6. The feeding directions of the two feeding mechanisms 8 for the two metal strips are the same. Among them, two stamping dies 5 and two first stamping punches 9 are located on the upper and lower sides of the feeding direction of the metal strip. A pushing member 26 for ejecting the metal buckle 1 from the stamping die 5 is also arranged on the workbench 6.

[0027] The first stamping punch 9 includes a first punch 40, a first pressure plate 42, a first limit bolt 39 and a first spring 38. The upper end of the first punch 40 is fixedly connected to the piston of the cylinder 2, and the lower end passes through the first pressure plate 42. A fixing portion 41 is arranged in the middle of the first punch 40. There are four first limit bolts 39 and four first springs 38. The first limit bolt 39 passes through the fixing portion 41 and is fixedly connected to the first pressure plate 42. The first spring 38 is sleeved outside the first limit bolt 39 and applies a downward force to the first pressure plate 42. The stamping die 5 includes a fixed sleeve 31, a movable sleeve 33, a second spring 32 and a movable rod 28. The fixed sleeve 31 is fixedly connected to the rotating table 4 by bolts. The movable sleeve 33 has a convex structure and is slidably arranged inside the fixed sleeve 31. A first through hole 44 for cooperating with the first punch 40 is arranged in the fixed sleeve 31. The middle part of the movable sleeve 33 cooperates with the first through hole 44, and a second through hole 43 is arranged at the center of the movable sleeve 33. One end of the movable rod 28 cooperates with the second through hole 43, and the other end passes through the rotating table 4. A ring convex 34 is arranged in the middle of the movable rod 28. There are multiple second springs 32, and both ends of it are respectively in contact with the movable sleeve 33 and the fixed sleeve 31. When the first cylinder 2 drives the first stamping punch 9 to move downward, the first pressure plate 42 first touches the fixed sleeve 31 and remains stationary. At this time, the first spring 38 is compressed, and the first punch 40 continues to move downward and generates a blanking force on the metal strip, so as to blank out a metal disc 37 in the first through hole 44. When the cylinder 2 drives the first stamping punch 9 to reset, the first pressure plate 42 will reset under the action of the first spring 38.

[0028] The second stamping punch 7 includes a second punch 52, a third punch 49, a second pressure plate 45 and a limiting component. The second punch 52 is located between the third punch 49 and the second pressure plate 45, and all three are in a convex shape structure. A plurality of limiting components are provided, which include a second limiting bolt 51, a fourth spring 48, a third spring 54 and a nut 47. The second limiting bolt 51 passes through the second punch 52 and the third punch 49 and is fixedly connected to the second pressure plate 45. The third punch 49 is fixedly connected to the cylinder 2. The nut 47 is threadedly connected to the middle of the second limiting bolt 51, and the nut 47 is located between the fourth spring 48 and the second punch 52. Both the third spring 54 and the fourth spring 48 are sleeved on the outside of the second limiting bolt 51. The two ends of the third spring 54 respectively abut against the second pressure plate 45 and the second punch 52. A sunk groove 53 for accommodating the third spring 54 is provided on the second punch 52. The two ends of the fourth spring 48 respectively abut against the nut 47 and the third punch 49, and after assembly, the elastic force of the fourth spring 48 is greater than that of the third spring 54. A boss 46 passing through the second pressure plate 45 is provided on the second punch 52. A punch 50 passing through the boss 46 is provided on the third punch 49. A blanking hole 35 is provided at the center of the movable rod 28. The blanking hole 35 is a stepped hole structure, and the diameter of its smaller end is equal to the diameter of the punch 50. A waste discharging hole 25 is provided on the workbench 6 corresponding to the lower part of the first punch 40. When the metal disc 37 rotates with the rotating table 4 and the stamping die 5, it moves to the lower part of the second stamping punch 7. The cylinder 2 drives the second stamping punch 7 to move downward, so that the second pressure plate 45 first abuts against the fixed sleeve 31, and at the same time, relying on the acting force of the third spring 54 on the second pressure plate 45, an elastic pressing force is generated on the metal disc 37 by the middle bottom of the second pressure plate 45. At this time, since the second pressure plate 45 cannot move downward continuously, while the second punch 52 and the third punch 49 continue to move downward, and relying on the pressure generated by the boss 46 on the second punch 52 on the metal disc 37, the metal disc 37 enters the second through hole 43, so as to be stretched into a concave structure until the second pressure plate 45 abuts against the second punch 52, and the second punch 52 cannot move downward continuously. At this time, the third punch 49 can continue to move downward, and rely on the punch 50 to punch the metal buckle 1. The generated waste is pushed into the blanking hole 35 by the punch 50 and then falls into the waste discharging hole 25, so that the whole stamping forming of the metal buckle 1 can be completed.

[0029] The material pushing member 26 includes a fifth spring 29, a pulley 24 and a pressing platform 23. One end of the movable rod 28 away from the movable sleeve 33 is fixedly installed with a cross bar 30. The fifth spring 29 is sleeved on the movable rod 28 and applies a downward acting force on the cross bar 30. A limiting portion for restricting its self-rotation is provided on the movable rod 28. There are two pulleys 24 and two pressing platforms 23. The pulley 24 is rotatably installed on the cross bar 30 by bolts. The two pressing platforms 23 are both arc-shaped structures and are arranged in a staggered manner with the first stamping punch 9 and the second stamping punch 7. One end of the pressing platform 23 is provided with a guiding and sliding inclined surface 22. A limiting rod 36 for controlling its upward sliding distance is provided on the movable sleeve 33. After the metal buckle 1 is stamped and formed, it continues to rotate 60° along with the rotating table 4. When the pulley 24 slides onto the pressing platform 23 during the synchronous rotation process, the pulley 24 slides upward along the guiding and sliding inclined surface 22 and applies an upward thrust to the movable rod 28, so as to push the metal buckle 1 out of the movable sleeve 33. Until the ring convex 34 touches the movable sleeve 33, it can drive the movable sleeve 33 to move upward synchronously, so that the metal buckle 1 is pushed to the surface of the rotating table 4, thus realizing automatic unloading.

[0030] The feeding mechanism 8 includes a guiding strip 10, a first gear 11, a transmission member and a driving member. There are two guiding strips 10 which are fixed on the workbench 6. The first gear 11 is fixed on the rotating table 4. The driving member includes a second gear 14, a first bevel gear 17, a second bevel gear 16 and a transmission shaft 15. The two ends of the transmission shaft 15 are rotatably connected to the two guiding strips 10. A rotating shaft is connected between the first bevel gear 17 and the second gear 14. Fixing blocks 21 for installing the transmission member and the rotating shaft are provided on the workbench 6. The transmission member meshes and drives with the first gear 11 and the second gear 14. One of the transmission members is composed of a first gear shaft 12, and the other transmission member is composed of a first gear shaft 12 and a second gear shaft 13. The metal strip is restricted between the two guiding strips 10. When the rotating table 4 rotates, the first gear 11 drives the first gear shaft 12 to rotate, or the first gear 11 drives the first gear shaft 12 and the second gear shaft 13 to rotate, thereby driving the second gear 14 to rotate. So that the transmission shaft 15 drives the metal strip to be conveyed at a fixed distance by relying on the frictional force between the transmission shaft 15 and the metal strip under the meshing transmission of the first bevel gear 17 and the second bevel gear 16. Thus, automatic feeding can be realized and preparations can be made for the next stamping and forming.

[0031] The first driving member includes a motor 19, a third gear 20 and a fourth gear 18. The motor 19 is fixed on the workbench 6. The third gear 20 is fixed on the output shaft of the motor 19. The fourth gear 18 is fixed at the bottom of the rotating table 4 and meshes with the third gear 20 for transmission. A pressing block 27 for restricting the upward movement of the fourth gear 18 is arranged on the workbench 6. The first motor 19 drives the third gear 20 to rotate, so that the fourth gear 18 can drive the rotating table 4 to rotate. By setting the working time and rotation speed of the motor 19, the rotating table 4 can be intermittently rotated by 60°, so that the positions of the stamping female die 5 are alternated, and at the same time, power is provided for the conveying of the metal strip, thereby realizing automatic feeding.

[0032] Above the corresponding pressing table 23 of the workbench 6, a material blocking frame 56 is arranged. The material blocking frame 56 is in a U-shaped structure and is used to guide the formed metal buckle 1 to the side of the workbench 6. After the metal buckle 1 is pushed out of the stamping female die 5, the material blocking frame 56 can block the metal buckle 1 when the rotating table 4 rotates, so that all the metal buckles 1 are restricted within the material blocking frame 56 and can fall from one side of the workbench 6 by relying on the acting force between them, thereby realizing automatic unloading.

[0033] Working principle: The metal strip is driven to move to one side by the friction force of the rotating transmission shaft 15. When the motor 19 drives the third gear 20 and the fourth gear 18 to rotate, by controlling the rotation time and speed of the motor 19, the rotating table 4 is driven to rotate intermittently by 60°, so that the positions of the stamping female die 5 are alternated. And the first gear 11 can drive the transmission member to rotate, thereby driving the transmission shaft 15 to rotate by a certain angle and realizing fixed-distance conveying of the metal strip. Subsequently, one of the cylinders 2 drives the first stamping punch 9 to move downward. First, the first pressing plate 42 presses the metal strip, and then the first punch 40 continues to move downward to punch out a metal disc 37 in the first through hole 44 of the fixed sleeve 31. When the metal disc 37 moves to the lower part of the second stamping punch 7 along with the rotating table 4 and the stamping female die 5, the other cylinder 2 drives the second stamping punch 7 to move downward. First, the second pressing plate 45 abuts against the fixed sleeve 31. At this time, an elastic pressing force is applied to the metal disc 37 by the middle bottom of the second pressing plate 45. Then the second punch 52 continues to move downward until the second pressing plate 45 abuts against the second punch 52 and remains stationary. During this process, the acting force applied to the metal disc 37 by the convex platform 46 and the cooperation with the movable sleeve 33 cause the metal disc 37 to be stamped and stretched into a concave structure. At the same time, the second pressing plate 45 blocks the warping of the metal disc 37, which can avoid stress concentration of the metal disc 37 during the stretching process, so that the edge of the metal disc 37 presents a flowing state during the stretching forming, which can effectively reduce the cracking of the formed metal buckle 1. Subsequently, the punch 50 can punch out the redundant waste material in the center of the metal buckle 1 to complete the punching operation. The redundant waste material will fall into the waste discharge hole 25 through the blanking port.

[0034] After stamping, the metal buckle 1 will remain in the stamping die 5 due to the sequential reset of the third punch 49, the second punch 52 and the second blank holder 45. Then, driven by the first power component, the metal buckle 1 continues to rotate 60° with the rotating table 4 and the stamping die 5. During this process, the pulley 24 slides to the position of the pressing platform 23 and moves upward along the guiding inclined surface 22, causing the movable rod 28 to move upward synchronously first and eject the metal buckle 1 from the movable sleeve 33. When the annular protrusion 34 touches the movable sleeve 33, it can drive the movable sleeve 33 to move upward together until the limiting rod 36 abuts against the fixed sleeve 31. At this time, the metal buckle 1 is pushed to the surface of the rotating table 4. The movable sleeve 33 and the movable rod 28 remain at the highest point position and continue to rotate with the rotating table 4. At this time, the metal buckle 1 is blocked by the blanking rack 56, thus automatically completing the entire unloading process. In this embodiment, the two first stamping punches 9 and the two second stamping punches 7 work synchronously, so that the production efficiency of the metal buckle 1 can be effectively improved.

[0035] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claimed rights.

[0036] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A metal buckle stamping and forming device, comprising a workbench (6), a rotating table (4), a first stamping punch (9) and a second stamping punch (7), characterized in that: The rotating table (4) is rotatably mounted at the center of the workbench (6), and a mounting frame (3) is arranged above the rotating table (4). A support column (55) is arranged at the center of the mounting frame (3). The support column (55) passes through the center of the rotating table (4) and is fixedly connected to the workbench (6). Six stamping dies (5) distributed at equal angles are arranged on the rotating table (4). Two of the first stamping dies (9) and two of the second stamping dies (7) are arranged above the corresponding stamping dies (5) of the mounting frame (3). The two first stamping dies (9) and the two second stamping dies (7) are symmetrically arranged at 180 degrees with the support column (55) as the center. The mounting frame (3) is provided with a cylinder (2) for driving the first punch (9) and the second punch (7) to vertically lift and lower, the workbench (6) is provided with a first power member for driving the rotating table (4) to intermittently rotate 60 degrees, and the workbench (6) is provided with two parallel feeding mechanisms (8), the two feeding mechanisms (8) are arranged in the same direction for feeding the two metal strips, wherein the two stamping dies (5) and the two first stamping dies (9) are located on the upper and lower sides of the feeding direction of the metal strips, and the workbench (6) is also provided with a pusher (26) for ejecting the metal buckle (1) from the stamping die (5).

2. A metal buckle stamping and forming device according to claim 1, characterized in that: The first stamping punch (9) comprises a first punch (40), a first pressing plate (42), a first limiting bolt (39) and a first spring (38); the upper end of the first punch (40) is fixedly connected to the piston of the cylinder (2), and the lower end thereof passes through the first pressing plate (42); a fixing portion (41) is provided in the middle of the first punch (40); four first limiting bolts (39) and four first springs (38) are provided, and the first limiting bolts (39) pass through the fixing portion (41) and are fixedly connected to the first pressing plate (42); the first spring (38) is sleeved on the outer side of the first limiting bolt (39) and applies a downward force to the first pressing plate (42); the stamping die (5) comprises a fixed sleeve (31), a movable sleeve (33) and a movable sleeve (33); , a second spring (32) and a movable rod (28), the fixed sleeve (31) being fixedly connected to the rotating table (4) by bolts, the movable sleeve (33) being in a convex shape and being slidably arranged on the inner side of the fixed sleeve (31), the fixed sleeve (31) being provided with a first through hole (44) cooperating with the first convex mold (40), the middle part of the movable sleeve (33) being cooperating with the first through hole (44), and the center of the movable sleeve (33) being provided with a second through hole (43), one end of the movable rod (28) being cooperating with the second through hole (43), and the other end being arranged to penetrate the rotating table (4), the middle part of the movable rod (28) being provided with an annular protrusion (34), a plurality of second springs (32) being provided, and the two ends thereof respectively abutting against the movable sleeve (33) and the fixed sleeve (31).

3. A metal buckle stamping and forming device according to claim 2, characterized in that: The second punch (7) comprises a second punch (52), a third punch (49), a second pressing plate (45) and a limiting assembly. The second punch (52) is located between the third punch (49) and the second pressing plate (45), and all three are in a convex shape. The limiting assembly is provided in plurality and comprises a second limiting bolt (51), a fourth spring (48), a third spring (54) and a nut (47). The second limiting bolt (51) passes through the second punch (52) and the third punch (49) and is fixedly connected to the second pressing plate (45). The third punch (49) is fixedly connected to the cylinder (2). The nut (47) is threadedly connected to the middle part of the second limiting bolt (51), and the nut (47) is located between the fourth spring (48) and the second punch (52). The third spring (54) and the fourth spring (48) are both sleeved on the second limiting bolt (51). 1), the two ends of the third spring (54) respectively contact the second pressure plate (45) and the second punch (52), the second punch (52) is provided with a recessed groove (53) for accommodating the third spring (54), the two ends of the fourth spring (48) respectively contact the nut (47) and the third punch (49), and after assembly, the elastic force of the fourth spring (48) is greater than the elastic force of the third spring (54), the second punch (52) is provided with a boss (46) penetrating the second pressure plate (45), the third punch (49) is provided with a punch (50) penetrating the boss (46), the center of the movable rod (28) is provided with a blanking hole (35), the blanking hole (35) is a stepped hole structure, the end with a smaller diameter is equal to the diameter of the punch (50), and the workbench (6) is provided with a waste discharge hole (25) below the first punch (40) corresponding to the workbench (6).

4. A metal buckle stamping and forming device according to claim 3, characterized in that: The pusher (26) comprises a fifth spring (29), a pulley (24) and a pressing platform (23); a cross bar (30) is fixedly mounted on one end of the movable rod (28) away from the movable sleeve (33); the fifth spring (29) is sleeved on the movable rod (28) and applies a downward force to the cross bar (30); a limiting portion for limiting the rotation of the movable rod (28) is provided on the movable rod (28); two pulleys (24) and two pressing platforms (23) are provided, and the pulleys (24) are rotatably mounted on the cross bar (30) by bolts; the two pressing platforms (23) are both arc-shaped structures and are staggered with the first punch (9) and the second punch (7); a guide slope (22) is provided on one end of the pressing platform (23); and a limiting rod (36) for controlling the upward sliding distance of the movable sleeve (33) is provided on the movable sleeve.

5. The metal buckle stamping forming device according to claim 3, characterized in that: The feeding mechanism (8) comprises a material guide bar (10), a first gear (11), a transmission member and a driving member. Two material guide bars (10) are provided and fixed on a workbench (6). The first gear (11) is fixed on a rotating table (4). The driving member comprises a second gear (14), a first bevel gear (17), a second bevel gear (16) and a transmission shaft (15). Both ends of the transmission shaft (15) are rotatably connected to the two material guide bars (10). A rotating shaft is connected between the first bevel gear (17) and the second gear (14). A fixing block (21) for mounting the transmission member and the rotating shaft is provided on the workbench (6). The transmission member meshes with the first gear (11) and the second gear (14) for transmission. One of the transmission members is composed of a first gear shaft (12), and the other transmission member is composed of a first gear shaft (12) and a second gear shaft (13).

6. The metal buckle stamping and forming device according to claim 1, characterized in that: The first power member comprises a motor (19), a third gear (20) and a fourth gear (18); the motor (19) is fixed on a workbench (6); the third gear (20) is fixed on an output shaft of the motor (19); the fourth gear (18) is fixed on a bottom of a rotating table (4) and meshes with the third gear (20) for transmission; a pressure block (27) is provided on the workbench (6) for limiting the upward movement of the fourth gear (18).

7. A metal buckle stamping and forming device according to claim 4, characterized in that: A material stop frame (56) is arranged above the workbench (6) corresponding to the pressing platform (23); the material stop frame (56) is in a U-shaped structure and is used to guide the formed metal buckle (1) to the side of the workbench (6).

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