A stamping forming device and method for gold jewelry

Abstract

The application relates to the technical field of punch forming and discloses a punch forming device for gold ornaments, which comprises a vertical rod, a bottom plate, a placing rod and a top rod are fixedly installed on the vertical rod, a rotating plate one is installed between the placing rod and the top rod, a movable hole is formed in the rotating plate one, the movable hole comprises a plurality of holes with different shapes, an extension cylinder is fixedly installed on the bottom plate, an extension rod is fixedly installed on the extension cylinder through a spring, a rotating plate two is placed on the extension rod, a placing groove is formed in the rotating plate two, a punch die is placed in the placing groove, a punch press is installed on the top rod, the output shaft of the punch press is in contact with a punch rod and extrudes the punch rod, the rotating plate one and the rotating plate two are rotated, the punch rod and the punch die with the same shape on the rotating plate one and the rotating plate two are corresponded, the rotating effect of the rotating plate one and the rotating plate two is utilized, the gold ornament can be punched by corresponding patterns, and the effect of quick punching is achieved when the punch shape is switched.

Description

Technical Field

[0001] This invention relates to the field of stamping technology, specifically to a stamping apparatus and method for gold jewelry. Background Technology

[0002] Stamping is a comprehensive cold working process for thin metal sheets, including shearing, punching, cutting, compounding, bending, welding, riveting, splicing, and forming. Many sheet metal parts are used in automobile manufacturing, and stamping equipment is required to ensure the processing of these parts. To prevent deformation of the stamping equipment due to overheating, traditional stamping equipment uses water cooling to lower the stamping dies. However, after cooling, water stains remain on the surface of the traditional stamping dies. Since gold is a precious metal, it oxidizes when exposed to air and water. Therefore, rapid stamping and avoiding contact with water can reduce the impact of gold oxidation on the quality of the finished jewelry. Summary of the Invention

[0003] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a stamping forming apparatus and method for gold jewelry.

[0004] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a stamping forming device for gold jewelry, comprising a vertical rod, a base plate fixedly installed at the bottom of the vertical rod, a placement rod fixedly installed in the middle of the vertical rod, a top rod fixedly installed at the top of the vertical rod, and a rotating plate installed between the placement rod and the top rod. The rotating plate has a movable hole, which includes holes of multiple shapes. A punching rod is movably installed in the movable hole, and a punching head is installed at the bottom of the punching rod by magnetic attraction. The punching rod and the punching head are connected by magnetic attraction to facilitate the disassembly and installation of the punching head. A telescopic cylinder is fixedly installed on the base plate, and a telescopic rod is fixedly installed on the telescopic cylinder by a spring. A rotating plate two is placed on the telescopic rod, and a placement groove is opened on the rotating plate two. A stamping die is placed in the placement groove. The rotating plate has a liquid chamber inside, which is filled with coolant. The placement groove and the stamping die are positioned to match the liquid chamber. A fixed rod is fixedly installed on the top rod, and a telescopic plate is rotatably installed on the fixed rod. A stamping machine is fixedly installed on the telescopic plate, and the output shaft of the stamping machine contacts the stamping rod and squeezes the stamping rod. The position of the stamping machine is adjusted by extending and retracting the telescopic plate.

[0005] Preferably, a rotating rod is also fixedly installed on the top rod, and a hole adapted to the rotating rod is opened at the top of the rotating plate. The rotating plate is movably connected to the hole through the rotating rod, and the rotating plate rotates between the rotating rod and the placement rod.

[0006] Preferably, the stamping die includes a bottom die, which is movably installed inside the outer shell of the stamping die. The bottom die is adapted to the shape of the corresponding movable hole, and the shape of the stamping head is adapted to the movable hole.

[0007] Preferably, the bottom center of the rotating plate two is designed as a hollow space, and a top groove is provided at the bottom of the rotating plate two, and the top groove is movably connected to the rotating rod; The bottom of the rotating plate 2 is also provided with a sliding groove, and three support rods are fixedly installed on the base plate in a triangular position, and the support rods are all engaged in the sliding groove.

[0008] Preferably, a motor is fixedly installed at the top of the hollow space, and a fan blade is fixedly installed on the output shaft of the motor, and the fan blade rotates in the hollow space by the motor. A fin is fixedly installed on the inner wall of the hollow space.

[0009] Preferably, an mounting plate is installed between the outer shell and the bottom mold of the stamping die, the mounting plate is fixedly connected to the bottom mold, a spring is fixedly installed at the bottom of the mounting plate, and a groove is provided inside the outer shell of the stamping die at a position that matches the spring, and the spring is fixedly installed in the groove. A gap is formed between the outer shell and the bottom mold of the stamping die. A connecting pipe is fixedly installed at the bottom of the outer shell of the stamping die. An opening is provided on the surface of the connecting pipe. The gap formed between the outer shell and the bottom mold of the stamping die is connected to the connecting pipe.

[0010] Preferably, the bottom of the bottom mold is arc-shaped, the bottom of the outer shell of the stamping die is designed with the same shape, and fins are fixedly installed on the bottom of the bottom mold.

[0011] Preferably, a second connecting pipe is fixedly installed in the middle of the placement groove, and the bottom of the second connecting pipe is connected to the liquid tank. When the stamping die is installed in the placement groove, the first connecting pipe is placed inside the second connecting pipe.

[0012] Preferably, the middle end of the second connecting pipe has an opening, which is connected to the liquid tank. A spring is fixedly installed at the bottom of the second connecting pipe, and a movable plate is fixedly installed on the spring. Initially, the movable plate is located above the opening, and the connecting pipe is sealed by the movable plate.

[0013] Preferably, its usage method is as follows: Step 1: Secure rotating plate one between the placement rod and the top rod, and place rotating plate two on the telescopic rod; Step 2: Adjust the position of the stamping press so that the output shaft of the stamping press acts on the stamping rod to perform stamping; Step 3: Initially, the stamping die is placed in the placement slot, and the connecting pipe 1 extends into the connecting pipe 2. At this time, the bottom of the connecting pipe 1 presses against the moving plate and moves the moving plate below the opening 2. At this time, the opening 2 is connected to the opening 1, so that the coolant in the liquid tank enters the connecting pipe 1 from the opening 2 and the opening 1. Step 4: When stamping begins, the stamping rod compresses the stamped part into the corresponding shape within the bottom die. At this time, the bottom die moves downward, causing the coolant in the gap between the bottom die and the stamping die housing to be discharged from the connecting pipe 1 and enter the liquid tank through opening 1 and opening 2 for mixing and exchange. After stamping is completed, the bottom die moves upward due to the elastic force of spring 1, and the coolant re-enters the gap between the bottom die and the stamping die housing through the connecting pipe 1, achieving the effect of cooling the bottom die and the stamped part.

[0014] (III) Beneficial Effects Compared with the prior art, the present invention provides a stamping forming apparatus and method for gold jewelry, which has the following beneficial effects: 1. The stamping forming device and method for gold jewelry involves engaging a rotating plate one between a placement rod and a top rod, and then placing a rotating plate two on a telescopic rod. Through the connection between the rotating rod and the rotating plate one, the rotating plate one can rotate between the placement rod and the top rod, while the rotating plate two can rotate on the telescopic rod. By rotating the rotating plate one and the rotating plate two, the stamping rods of the same shape on the rotating plate one and the rotating plate two correspond to the stamping mold. Then, the position of the stamping machine is adjusted so that the output shaft of the stamping machine acts on the stamping rods to achieve the stamping effect. Furthermore, by utilizing the rotation effect of the rotating plate one and the rotating plate two, the gold jewelry can be stamped using corresponding pattern shapes, achieving a rapid stamping effect when switching stamping shapes.

[0015] 2. The stamping forming device and method for the gold jewelry utilizes the telescopic effect of the telescopic rod. When not stamping, the telescopic rod lifts the rotating plate two, making it easy to adjust the rotation of the rotating plate two. When stamping, the locking effect of the three support rods and the slide groove, along with the stability of the triangle, allows the rotating plate two to be stably placed on the support rods, achieving a stable stamping effect.

[0016] 3. The stamping forming device and method for the gold jewelry, wherein the stamping die is movably engaged in the placement groove to facilitate disassembly and replacement, and by making a bottom mold with an existing pattern shape, the pattern and shape are determined for rapid stamping. Initially, the stamping die is placed in the placement groove, and the connecting pipe one extends into the connecting pipe two. At this time, the bottom of the connecting pipe one presses the moving plate and moves the moving plate below the opening two. At this time, the opening two is connected to the opening one, so that the coolant in the liquid chamber enters the connecting pipe one from the opening two, and enters the outer shell of the stamping die through the connecting pipe one, thereby achieving the effect of cooling the bottom mold and the stamped parts on the bottom mold.

[0017] 4. The stamping forming device and method for the gold jewelry: When stamping begins, the stamping rod compresses the stamped part into the corresponding shape within the bottom mold. At this time, the bottom mold moves downward, causing the coolant in the gap between the bottom mold and the outer shell of the stamping die to be discharged from the connecting pipe 1 and enter the liquid chamber through opening 1 and opening 2 for mixing and exchange. After stamping is completed, the bottom mold moves upward due to the elastic force of spring 1, and the coolant re-enters the gap between the bottom mold and the outer shell of the stamping die through the connecting pipe 1, achieving the effect of cooling the bottom mold and the stamped part. By setting fin 2, which serves as an extension of the bottom mold, the cooling exchange area of ​​the bottom mold is increased, thereby accelerating the cooling effect.

[0018] 5. The stamping forming device and method for the gold jewelry involves turning on the motor, which drives the fan blades to rotate and blow air downwards. The fan blades cool the first fin, thereby cooling the coolant in the liquid tank. The rotation of the fan blades also cools the second rotating plate, achieving a better cooling effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the vertical rod structure of the present invention; Figure 3 This is a schematic diagram of the rotating plate structure of the present invention; Figure 4 This is a schematic diagram of the chute structure of the present invention; Figure 5 This is a schematic diagram of the fan blade structure of the present invention; Figure 6 This is a schematic diagram of the connecting pipe structure of the present invention; Figure 7 This is a schematic diagram of the bottom mold structure of the present invention; Figure 8 This is a schematic diagram of the connecting pipe structure of the present invention.

[0020] In the diagram: 10. Vertical rod; 11. Placement rod; 12. Top rod; 13. Fixed rod; 14. Telescopic plate; 15. Stamping machine; 16. Rotating rod; 17. Rotating plate one; 18. Movable hole; 19. Stamping rod; 20. Stamping head; 21. Base plate; 22. Rotating plate two; 23. Support rod; 24. Stamping die; 25. Telescopic cylinder; 26. Telescopic rod; 27. Slide groove; 28. Top groove; 29. ​​Fan blade; 30. Fin one; 31. Motor; 32. Bottom mold; 33. Mounting plate; 34. Spring one; 35. Groove; 36. Fin two; 37. Connecting pipe one; 38. Connecting pipe two; 39. Placement groove; 40. Opening one; 41. Moving plate; 42. Sealing ring; 43. Opening two; 44. Spring two; 45. Liquid tank. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-8 A stamping forming device for gold jewelry includes a vertical rod 10, a base plate 21 fixedly installed at the bottom of the vertical rod 10, a placement rod 11 fixedly installed in the middle of the vertical rod 10, a top rod 12 fixedly installed at the top of the vertical rod 10, and a rotating plate 17 installed between the placement rod 11 and the top rod 12. The rotating plate 17 has a movable hole 18, which includes holes of multiple shapes. A punching rod 19 is movably installed in the movable hole 18. A punching head 20 is magnetically attached to the bottom of the punching rod 19. The punching rod 19 and the punching head 20 are connected by magnetic attraction to facilitate the disassembly and installation of the punching head 20. A telescopic cylinder 25 is fixedly installed on the base plate 21. A telescopic rod 26 is fixedly installed on the telescopic cylinder 25 by a spring. A rotating plate 22 is placed on the telescopic rod 26. A placement groove 39 is opened on the rotating plate 22. A stamping die 24 is placed in the placement groove 39. The rotating plate 22 has a liquid chamber 45 inside, and coolant is injected into the liquid chamber 45. The positions of the placement groove 39 and the stamping die 24 are adapted to the liquid chamber 45. A fixing rod 13 is fixedly installed on the top rod 12, and a telescopic plate 14 is rotatably installed on the fixing rod 13. A punching machine 15 is fixedly installed on the telescopic plate 14, and the output shaft of the punching machine 15 contacts the punching rod 19 and squeezes the punching rod 19. The position of the stamping machine 15 is adjusted by the extension and retraction of the telescopic plate 14.

[0023] A rotating rod 16 is also fixedly installed on the top rod 12. The top end of the rotating plate 17 is provided with a hole that matches the rotating rod 16. The rotating plate 17 is movably connected to the hole through the rotating rod 16, and the rotating plate 17 rotates between the rotating rod 16 and the placement rod 11.

[0024] The stamping die 24 includes a bottom die 32, which is movably installed inside the outer shell of the stamping die 24. The bottom die 32 is adapted to the shape of the corresponding movable hole 18, and the shape of the stamping head 20 is adapted to the movable hole 18.

[0025] The bottom center of the rotating plate 22 is designed as a hollow space, and a top groove 28 is provided at the bottom of the rotating plate 22. The top groove 28 is movably connected to the rotating rod 16. The bottom of the rotating plate 22 is also provided with a sliding groove 27, and three support rods 23 are fixedly installed on the base plate 21 in a triangular position. The support rods 23 are all engaged in the sliding groove 27.

[0026] A motor 31 is fixedly installed at the top of the hollow space, and a fan blade 29 is fixedly installed on the output shaft of the motor 31. The fan blade 29 rotates in the hollow space through the motor 31. Fins 30 are fixedly installed on the inner wall of the hollow space.

[0027] An mounting plate 33 is installed between the outer shell of the stamping die 24 and the bottom die 32. The mounting plate 33 is fixedly connected to the bottom die 32. A spring 34 is fixedly installed at the bottom of the mounting plate 33. A groove 35 is provided inside the outer shell of the stamping die 24 at a position that matches the spring 34. The spring 34 is fixedly installed in the groove 35. A gap is formed between the outer shell of the stamping die 24 and the bottom die 32. A connecting pipe 37 is fixedly installed at the bottom of the outer shell of the stamping die 24, and the gap formed between the outer shell of the stamping die 24 and the bottom die 32 is connected to the connecting pipe 37.

[0028] The bottom of the bottom mold 32 is arc-shaped, and the bottom of the outer shell of the stamping die 24 is designed with the same shape. A fin 36 is fixedly installed on the bottom of the bottom mold 32.

[0029] A connecting pipe 2 38 is fixedly installed in the middle of the placement groove 39. The bottom of the connecting pipe 2 38 is connected to the liquid tank 45. When the stamping die 24 is installed in the placement groove 39, the connecting pipe 1 37 is placed in the connecting pipe 2 38.

[0030] The second connecting pipe 38 has an opening 43 at its middle end, which is connected to the liquid tank 45. A spring 44 is fixedly installed at the bottom of the second connecting pipe 38, and a movable plate 41 is fixedly installed on the spring 44. Initially, the movable plate 41 is located above the opening 43, and the second connecting pipe 38 is sealed by the movable plate 41.

[0031] In use, rotating plate 17 is engaged between placement rod 11 and top rod 12, and rotating plate 22 is placed on telescopic rod 26. Through the connection between rotating rod 16 and rotating plate 17, rotating plate 17 can rotate between placement rod 11 and top rod 12, and rotating plate 22 can rotate on telescopic rod 26. By rotating rotating plate 17 and rotating plate 22, the stamping rods 19 of the same shape on rotating plate 17 and rotating plate 22 correspond to the stamping die 24. Then, the position of stamping machine 15 is adjusted so that the output shaft of stamping machine 15 acts on the stamping rods 19 to achieve the stamping effect. Moreover, by utilizing the rotation effect of rotating plate 17 and rotating plate 22, gold jewelry can be stamped with corresponding pattern shapes, achieving a rapid stamping effect when switching stamping shapes.

[0032] By utilizing the telescopic effect of the telescopic rod 26, when not stamping, the telescopic rod 26 lifts the rotating plate 22, making the rotating plate 22 easy to adjust and rotate. When stamping, the locking effect of the three support rods 23 and the slide groove 27, along with the stability of the triangle, allows the rotating plate 22 to be stably placed on the support rods 23, achieving a stable stamping effect.

[0033] The stamping die 24 is movably engaged in the placement groove 39, achieving the effect of easy disassembly and replacement. By making the bottom die 32 with the existing pattern shape, the stamping of the pattern and shape can be determined quickly. Initially, the stamping die 24 is placed in the placement groove 39, and the connecting pipe 1 37 extends into the connecting pipe 2 38. At this time, the bottom of the connecting pipe 1 37 presses the moving plate 41 and moves the moving plate 41 to the bottom of the opening 2 43. At this time, the opening 2 43 is connected to the opening 1 40, so that the coolant in the liquid tank 45 enters the connecting pipe 1 37 from the opening 2 43 and the opening 1 40, and enters the outer shell of the stamping die 24 through the connecting pipe 1 37, achieving the effect of cooling the bottom die 32 and the stamped parts on the bottom die 32.

[0034] When stamping begins, the stamping rod 19 compresses the stamped part into the corresponding shape within the bottom die 32. At this time, the bottom die 32 moves downward, causing the coolant in the gap between the bottom die 32 and the outer shell of the stamping die 24 to be discharged from the connecting pipe 37 and enter the liquid tank 45 through the openings 40 and 43 on the surface of the connecting pipe 37 for mixing and exchange. After stamping is completed, the bottom die 32 moves upward due to the elastic force of the spring 34, and the coolant re-enters the gap between the bottom die 32 and the outer shell of the stamping die 24 through the connecting pipe 37, achieving the effect of cooling the bottom die 32 and the stamped part. By setting fins 36, which serve as an extension of the bottom die 32, the cooling exchange area of ​​the bottom die 32 is increased, thereby accelerating the cooling effect.

[0035] The rotating plate 22 is equipped with a coolant injection port, through which coolant is injected, and the amount of coolant in the liquid tank 45 can be ensured by a ball valve.

[0036] Turn on the motor 31, which drives the fan blade 29 to rotate and blow air downwards. The fan blade 29 cools the fin 30, thus cooling the coolant in the liquid tank 45. The rotation of the fan blade 29 also cools the rotating plate 22, achieving a better cooling effect.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stamping forming device for gold jewelry, comprising a vertical rod (10), a base plate (21) fixedly installed at the bottom of the vertical rod (10), a placement rod (11) fixedly installed in the middle of the vertical rod (10), and a top rod (12) fixedly installed at the top of the vertical rod (10), characterized in that: A rotating plate (17) is installed between the placement rod (11) and the top rod (12). The rotating plate (17) has a movable hole (18) which contains holes of multiple shapes. A punch rod (19) is movably installed in the movable hole (18). A punch head (20) is installed at the bottom of the punch rod (19) by magnetic attraction. The punch rod (19) and the punch head (20) are connected by magnetic attraction to facilitate the disassembly and installation of the punch head (20). A telescopic cylinder (25) is fixedly installed on the base plate (21). A telescopic rod (26) is fixedly installed on the telescopic cylinder (25) by a spring. A rotating plate (22) is placed on the telescopic rod (26). A placement groove (39) is opened on the rotating plate (22). A stamping die (24) is placed in the placement groove (39). The rotating plate 2 (22) has a liquid chamber (45) inside, and the liquid chamber (45) is filled with coolant. The positions of the placement groove (39) and the stamping die (24) are adapted to the liquid chamber (45). A fixed rod (13) is fixedly installed on the top rod (12), and a telescopic plate (14) is rotatably installed on the fixed rod (13). A punching machine (15) is fixedly installed on the telescopic plate (14). The output shaft of the punching machine (15) contacts the punching rod (19) and squeezes the punching rod (19). The position of the press (15) is adjusted by the extension and retraction of the telescopic plate (14); The stamping die (24) includes a bottom die (32), which is movably installed inside the outer shell of the stamping die (24). The bottom die (32) is adapted to the shape of the corresponding movable hole (18), and the shape of the stamping head (20) is adapted to the movable hole (18). An mounting plate (33) is installed between the outer shell and the bottom mold (32) of the stamping die (24). The mounting plate (33) is fixedly connected to the bottom mold (32). A spring (34) is fixedly installed at the bottom of the mounting plate (33). A groove (35) is provided inside the outer shell of the stamping die (24) at a position that matches the spring (34). The spring (34) is fixedly installed in the groove (35). A gap is formed between the outer shell and the bottom mold (32) of the stamping die (24). A connecting pipe (37) is fixedly installed at the bottom of the outer shell of the stamping die (24). An opening (40) is opened on the surface of the connecting pipe (37). The gap formed between the outer shell and the bottom mold (32) of the stamping die (24) is connected to the connecting pipe (37). The bottom of the bottom mold (32) is arc-shaped, and the bottom of the outer shell of the stamping die (24) is designed with the same shape. The bottom of the bottom mold (32) is fixedly installed with fin two (36). A connecting pipe two (38) is fixedly installed in the middle of the placement groove (39). The bottom of the connecting pipe two (38) is connected to the liquid tank (45). When the stamping die (24) is installed in the placement groove (39), the connecting pipe one (37) is placed in the connecting pipe two (38). The middle end of the connecting pipe 2 (38) is provided with an opening 2 (43), which is connected to the liquid tank (45). A spring 2 (44) is fixedly installed at the bottom of the connecting pipe 2 (38), and a moving plate (41) is fixedly installed on the spring 2 (44). Initially, the moving plate (41) is located above the opening 2 (43), and the connecting pipe 2 (38) is sealed by the moving plate (41).

2. The stamping and forming apparatus for gold jewelry according to claim 1, characterized in that: A rotating rod (16) is also fixedly installed on the top rod (12). The top of the rotating plate (17) is provided with a hole that matches the rotating rod (16). The rotating plate (17) is movably connected to the hole through the rotating rod (16), and the rotating plate (17) rotates between the rotating rod (16) and the placement rod (11).

3. The stamping and forming apparatus for gold jewelry according to claim 2, characterized in that: The bottom center of the rotating plate 2 (22) is designed as a hollow space, and a top groove (28) is provided at the bottom of the rotating plate 2 (22), and the top groove (28) is movably connected to the rotating rod (16); The bottom of the rotating plate 2 (22) is also provided with a sliding groove (27), and three support rods (23) are fixedly installed on the base plate (21) in a triangular position. The support rods (23) are all engaged in the sliding groove (27).

4. The stamping and forming apparatus for gold jewelry according to claim 3, characterized in that: A motor (31) is fixedly installed at the top of the hollow space, and a fan blade (29) is fixedly installed on the output shaft of the motor (31). The fan blade (29) rotates in the hollow space through the motor (31). A fin (30) is fixedly installed on the inner wall of the hollow space.

5. The stamping and forming apparatus for gold jewelry according to claim 4, characterized in that: Its usage method is as follows: Step 1: Engage rotating plate 1 (17) between the placement rod (11) and the top rod (12), and place rotating plate 2 (22) on the telescopic rod (26); Step 2: Adjust the position of the stamping machine (15) so that the output shaft of the stamping machine (15) acts on the stamping rod (19) to perform stamping; Step 3: Initially, the stamping die (24) is placed in the placement groove (39), and the connecting pipe 1 (37) extends into the connecting pipe 2 (38). At this time, the bottom of the connecting pipe 1 (37) presses the moving plate (41) and moves the moving plate (41) to the bottom of the opening 2 (43). At this time, the opening 2 (43) is connected to the opening 1 (40), so that the coolant in the liquid tank (45) enters the connecting pipe 1 (37) from the opening 2 (43) and the opening 1 (40). Step 4: When stamping begins, the stamping rod (19) squeezes the stamped part into the bottom die (32) to form the corresponding shape. At this time, the bottom die (32) moves downward, so that the coolant in the gap between the bottom die (32) and the outer shell of the stamping die (24) is discharged from the connecting pipe (37) and enters the liquid tank (45) from the opening (40) and the opening (43) for mixing and exchange. After stamping is completed, the bottom die (32) moves upward due to the elastic force of the spring (34). The coolant re-enters the gap between the bottom die (32) and the outer shell of the stamping die (24) through the connecting pipe (37) to achieve the effect of cooling the bottom die (32) and the stamped part.

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