A production equipment and process for nuts

Abstract

This application relates to the technical field of nut production, and in particular to a nut production equipment and process, which includes a stamping table, an inner mold, a driving component, a forming block, and a pressing block. The upper end of the stamping table has a stamping groove, and the bottom of the stamping groove has a sliding opening. The inner mold is slidably connected to the inner wall of the sliding opening. The driving component is connected to the forming block and is used to embed the forming block into the stamping groove. The lower end of the forming block has a pressing groove, and the pressing block is slidably connected to the groove wall of the pressing groove. The sliding direction of the pressing block is vertical. A steel block is placed in the stamping groove, and the driving component embeds the forming block into the stamping groove. Under the pressure of the forming block, the steel block fills the cavity formed by the groove wall of the forming groove, the lower end of the forming block, and the outer periphery of the inner mold. The inner mold slides downwards, and the pressing block slides downwards, separating excess waste from the blank block, thus completing the production of the blank block. The operation is simple, eliminating the need to transfer to another stamping machine, improving processing efficiency, and reducing production costs.

Description

Technical Field

[0001] This application relates to the field of nut production, and in particular to a nut production equipment and process. Background Technology

[0002] Nuts are parts that are screwed together with bolts or screws to provide a fastening function. Nuts are parts that tightly connect mechanical equipment. Only nuts and bolts of the same specification can be connected together through the internal threads.

[0003] Stamping is a forming process that uses a press and dies to apply external force to sheet metal, strip, tube and profile materials, causing them to undergo plastic deformation or separation, thereby obtaining workpieces (stamped parts) of the required shape and size.

[0004] Currently, the stamping process for nuts generally requires first stamping out the outer and inner wall shapes of the nut, and then transferring it to the next stamping machine for secondary stamping to remove excess waste material from the nut and form a blank. The manufacturing process is relatively complex. Summary of the Invention

[0005] To improve processing efficiency, this application provides a production equipment and process for nuts.

[0006] Firstly, the nut production equipment provided in this application adopts the following technical solution:

[0007] A nut production device includes a stamping table, an inner mold, a driving component, a forming block, and a pressing block. The upper end of the stamping table is provided with a stamping groove, and the bottom of the stamping groove is provided with a sliding opening. The inner mold is slidably connected to the inner wall of the sliding opening. The driving component is connected to the forming block and is used to embed the forming block into the stamping groove. The lower end of the forming block is provided with a pressing groove, and the pressing block is slidably connected to the groove wall of the pressing groove. The sliding direction of the pressing block is vertical.

[0008] By adopting the above technical solution, the steel block is placed in the stamping groove, and the driving component embeds the forming block into the stamping groove. Under the extrusion of the forming block, the steel block fills the cavity formed by the groove wall, the lower end of the forming block and the outer periphery of the inner mold. The inner mold slides down and the pressure block slides down, separating the excess waste material on the steel block from the blank, thus completing the production of the blank. The operation is simple and does not require transfer to another stamping machine, thereby improving processing efficiency and reducing production costs.

[0009] Preferably, a nut production device further includes a spring, one end of which is fixedly connected to the bottom of the pressure groove, and the other end of which is fixedly connected to the pressure block.

[0010] By adopting the above technical solution, the inner mold supports the waste material and counteracts the spring force. When the inner mold slides down, the spring force will cause the pressure block to slide down, separating the waste material from the blank. The structure is simple and the operation is convenient.

[0011] Preferably, the inner mold includes a forming column and an ejector ring, the ejector ring being coaxially and fixedly connected to the outer wall of the forming column, and the outer wall of the ejector ring being slidably connected to the inner wall of the sliding opening.

[0012] By adopting the above technical solution, during stamping, the upper end face of the ejector ring is flush with the bottom of the stamping groove, so that the thickness of the stamped blank is greater than the thickness of the ejector ring. The inner wall of the blank is attached to the outer wall of the forming column. When the blank stamping is completed, the ejector ring slides upward to push the blank out of the stamping groove. The operation is simple and easy to unload.

[0013] Preferably, a nut production device further includes a fan, the stamping table is provided with a receiving cavity, the receiving cavity is located below and connected to the sliding port, the inner wall of the receiving cavity is provided with a feeding channel, the inner wall of the receiving cavity is provided with a through-hole, the through-hole is directly opposite the feeding channel, the fan is fixedly connected to the inner wall of the through-hole, and the fan is used to blow the waste generated by stamping to the feeding channel.

[0014] By adopting the above technical solution, the inner mold slides downward, causing the waste material to slide downward as well. The fan rotates to generate airflow, causing the waste material to fall into the material discharge channel, which is convenient for recycling and reduces material waste. In addition, the fan can provide air cooling for the inner mold.

[0015] Preferably, the fan includes a bracket, a drive shaft, and fan blades. The bracket is fixedly connected to the inner wall of the opening. The drive shaft is rotatably connected to the bracket around its own axis, and the axis of rotation of the drive shaft is parallel to the axis of the opening. The fan blades are fixedly connected to the outer wall of the drive shaft. The inner mold slides up and down, driving the drive shaft to rotate through a transmission assembly.

[0016] By adopting the above technical solution, the inner mold slides up and down, driving the drive shaft to rotate through the transmission component, which in turn causes the fan blades to rotate and generate wind power. No additional drive source is required, thus reducing energy consumption.

[0017] Preferably, the transmission assembly includes a rack, a rotating column, a gear, a first synchronous pulley, a second synchronous pulley, and a synchronous belt. The rack is fixedly connected to the lower end of the inner mold. The rotating column is rotatably connected to the inner wall of the receiving cavity around its own axis. The gear is coaxially fixedly connected to one end of the rotating column. The rack meshes with the gear. The first synchronous pulley is coaxially fixedly connected to the drive shaft. The second synchronous pulley is coaxially fixedly connected to the rotating column. The synchronous belt is sleeved on the outer periphery of the first and second synchronous pulleys.

[0018] By adopting the above technical solution, the inner mold slides up and down while driving the rack to slide, causing the gear to rotate, the rotating column to rotate, and the second synchronous pulley to rotate. The synchronous belt drives the first synchronous pulley to rotate, blowing the waste material into the discharge channel. The structure is simple and reduces energy consumption.

[0019] Preferably, a nut production device further includes a guide plate, a sliding column, a mounting block, and a water spray pipe. The inner wall of the receiving cavity is provided with a flow channel. The guide plate is fixedly connected to the inner wall of the receiving cavity. The height of the upper surface of the guide plate increases as it moves away from the flow channel. One end of the guide plate extends into the flow channel. The guide plate is provided with a through-hole. The sliding column is slidably connected to the inner wall of the through-hole. The upper end of the sliding column is fixedly connected to the inner mold. The mounting block is fixedly connected to the driving component and the forming block. The water spray pipe is fixedly connected to the mounting block, and the nozzle of the water spray pipe faces the forming block.

[0020] By adopting the above technical solution, the water sprayed from the water spray pipe cools the molded block, and the water flows down the stamping groove and sliding port into the guide plate. The water on the guide plate is discharged in the direction of the guide plate's inclination.

[0021] Preferably, a nut production device further includes a water collection tank, the upper end of which is provided with a water collection trough for receiving water discharged from the guide plate.

[0022] By adopting the above technical solution, stamping will generate a lot of water resources loss, and the water collection tank will recycle and reuse the water resources, which can effectively reduce water waste.

[0023] Preferably, a nut production device further includes a water storage tank, a guide pipe, a fixing block, a shape memory alloy, and a sliding block. The upper end of the water storage tank is provided with a water storage trough, and the outer wall of the water collection tank is provided with a drain outlet. One end of the guide pipe is fixedly connected to the inner wall of the drain outlet, and the other end of the guide pipe is connected to the water storage trough. The fixing block is fixedly connected to the inner wall of the water collection trough. One end of the shape memory alloy is fixedly connected to the fixing block, and the other end of the shape memory alloy is fixedly connected to the sliding block. The sliding block is used to cover the drain outlet.

[0024] By adopting the above technical solution, when the water in the water collection tank is cooled to a certain temperature, the shape memory alloy will deform and move the sliding block away from the drain outlet. The water will be discharged from the drain outlet into the water storage tank. When the water temperature in the water collection tank is high, the shape memory alloy will deform and cause the sliding block to cover the drain outlet. The water in the water storage tank can be directly pumped into the spray pipe for secondary use, reducing water waste.

[0025] Secondly, this application provides a manufacturing process for nuts, employing the following technical solution:

[0026] A manufacturing process for nuts includes the following steps:

[0027] Cut the steel into steel blocks;

[0028] Heating the steel block;

[0029] The steel block is placed in the stamping groove and stamped into a blank;

[0030] The inner mold slides upward to push out the blank;

[0031] Cooling the blank;

[0032] The blank is tapped to form a nut.

[0033] By adopting the above technical solution, the blank can be manufactured in one go, resulting in a simple structure, reduced production costs, and improved production efficiency.

[0034] In summary, this application includes at least one of the following beneficial technical effects:

[0035] 1. The steel block is placed in the stamping groove. The driving component embeds the forming block into the stamping groove. Under the extrusion of the forming block, the steel block fills the cavity formed by the groove wall, the lower end of the forming block and the outer periphery of the inner mold. The inner mold slides down and the pressure block slides down, separating the excess waste on the steel block from the blank, thus completing the production of the blank. The operation is simple and does not require transfer to another stamping machine, which improves processing efficiency and reduces production costs.

[0036] 2. The inner mold slides downwards, causing the waste material to slide downwards as well. The fan rotates to generate airflow, causing the waste material to fall into the material discharge channel, which facilitates recycling and reduces material waste. In addition, the fan can provide air cooling for the inner mold.

[0037] 3. When the water in the collection tank cools to a certain temperature, the shape memory alloy will deform and move the sliding block away from the drain outlet. The water will then be discharged from the drain outlet into the water storage tank. When the water temperature in the collection tank is high, the shape memory alloy will deform and cause the sliding block to cover the drain outlet. The water in the storage tank can then be directly pumped into the spray pipe for reuse, reducing water waste. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the overall structure of a nut production equipment.

[0039] Figure 2 This is a cross-sectional view of a nut manufacturing equipment.

[0040] Figure 3 It is a schematic diagram of the overall structure of the stamping table, forming components, fan and transmission components.

[0041] Explanation of reference numerals in the attached drawings: 1. Stamping table; 11. Stamping groove; 12. Sliding opening; 13. Receiving cavity; 14. Discharge channel; 15. Through port; 16. Placement port; 17. Guide channel; 2. Driving component; 21. First hydraulic cylinder; 22. Second hydraulic cylinder; 3. Extrusion assembly; 31. Mounting block; 32. Forming block; 321. Pressing groove; 33. Pressing block; 34. Spring; 4. Support frame; 5. Forming assembly; 51. Sliding column; 52. Receiving plate; 53. Inner mold; 531. Forming column; 532. Ejector ring; 6. 61. Fan; 62. Bracket; 63. Drive shaft; 74. Fan blade; 85. Transmission assembly; 76. Rotating column; 77. Gear; 78. Second synchronous pulley; 79. First synchronous pulley; 70. Synchronous belt; 71. Rack; 80. Water circulation assembly; 81. Guide plate; 812. Guide channel; 82. Through-hole; 83. Water spray pipe; 84. Water collection tank; 85. Water collection trough; 86. Drain outlet; 87. Water storage tank; 88. Water storage trough; 89. Guide pipe; 80. Fixing block; 81. Shape memory alloy; 81. Sliding block. Detailed Implementation

[0042] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0043] This application discloses a nut production device. (Refer to...) Figure 1 and Figure 2 A nut production equipment includes a stamping table 1, a drive component 2, an extrusion assembly 3, a support frame 4, a forming assembly 5, a fan 6, a transmission assembly 7, and a water circulation assembly 8.

[0044] Reference Figure 2 The stamping table 1 is fixedly connected to the ground. The upper end of the stamping table 1 is provided with a stamping groove 11. The bottom of the stamping groove 11 is provided with a sliding opening 12. The stamping table 1 is provided with a receiving cavity 13. The receiving cavity 13 is located below the sliding opening 12 and is connected to the sliding opening 12.

[0045] The driving component 2 includes a first hydraulic cylinder 21 and a second hydraulic cylinder 22. The extrusion assembly 3 includes a mounting block 31, a forming block 32, a pressing block 33, and a spring 34. The support frame 4 is fixedly connected to the ground. The cylinder body of the first hydraulic cylinder 21 is fixedly connected to the support frame 4. The first hydraulic cylinder 21 is located above the stamping table 1. The piston rod of the first hydraulic cylinder 21 is fixedly connected to the upper end of the mounting block 31. The lower end of the mounting block 31 is fixedly connected to the upper end of the forming block 32. The forming block 32 is used to embed into the stamping groove 11. The first hydraulic cylinder 21 is used to control the mounting block 31 to slide up and down. The lower end of the forming block 32 is provided with a pressing groove 321. The pressing block 33 slides into the pressing groove 321. One end of the spring 34 is fixedly connected to the bottom of the pressing groove 321, and the other end of the spring 34 is fixedly connected to the pressing block 33.

[0046] Reference Figure 2The molding component 5 includes a sliding column 51, a receiving plate 52, and an inner mold 53. The second hydraulic cylinder 22 is located in the receiving cavity 13. The cylinder body of the second hydraulic cylinder 22 is fixedly connected to the ground, and the piston rod of the second hydraulic cylinder 22 is fixedly connected to the sliding column 51. The upper end of the sliding column 51 is fixedly connected to the lower end of the receiving plate 52. The inner mold 53 includes a molding column 531 and an ejector ring 532. The ejector ring 532 is coaxially fixedly connected to the outer wall of the molding column 531 and slidably connected to the inner wall of the sliding opening 12. The lower end of the molding column 531 is fixedly connected to the upper end of the receiving plate 52, and the receiving plate 52 is slidably connected to the inner wall of the receiving cavity 13.

[0047] The inner wall of the receiving cavity 13 is provided with a feeding channel 14 and an opening 15. The opening 15 is directly opposite the feeding channel 14. The fan 6 includes a bracket 61, a drive shaft 62 and fan blades 63. The bracket 61 is fixedly connected to the inner wall of the opening 15. The drive shaft 62 is rotatably connected to the bracket 61 around its own axis. The axis of the drive shaft 62 is collinear with the axis of the opening 15. The fan blades 63 are fixedly connected to the outer wall of the drive shaft 62. There are multiple fan blades 63, and the multiple fan blades 63 are evenly spaced around the axis of the drive shaft 62.

[0048] Reference Figure 3 The transmission assembly 7 includes a rotating column 71, a gear 72, a second synchronous pulley 73, a first synchronous pulley 74, a synchronous belt 75, and a rack 76.

[0049] Reference Figure 2 and Figure 3 The inner wall of the receiving cavity 13 is provided with a placement opening 16. The placement opening 16 and the through opening 15 are located on the same inner wall of the receiving cavity 13. The placement opening 16 is located below the through opening 15. The axis of the placement opening 16 is parallel to the axis of the through opening 15. The rotating column 71 is coaxially rotatably connected to the inner wall of the placement opening 16. The gear 72 is located inside the receiving cavity 13. The gear 72 is coaxially fixedly connected to one end of the rotating column 71. The second synchronous wheel 73 is coaxially fixedly connected to the other end of the rotating column 71. The first synchronous wheel 74 is coaxially fixedly connected to the lower end of the drive shaft 62 away from the feeding channel 14. The synchronous belt 75 is sleeved on the outer periphery of the first synchronous wheel 74 and the second synchronous wheel 73. One end of the rack 76 is fixedly connected to the lower end of the receiving plate 52. The rack 76 meshes with the gear 72.

[0050] Reference Figure 2 The water circulation component 8 includes a guide plate 81, a spray pipe 82, a water collection tank 83, a water storage tank 84, a guide pipe 85, a fixing block 86, a shape memory alloy 87, and a sliding block 88.

[0051] The inner wall of the receiving cavity 13 is provided with a flow guiding channel 17. The flow guiding channel 17 and the material feeding channel 14 are located on the same inner wall of the receiving cavity 13. The height of the flow guiding channel 17 is lower than the height of the material feeding channel 14. The flow guiding plate 81 is fixedly connected to the inner wall of the receiving cavity 13. The height of the flow guiding plate 81 is lower than the height of the transmission assembly 7. The upper end of the flow guiding plate 81 is provided with a flow guiding groove 811. The height of the bottom of the flow guiding groove 811 increases as it moves away from the flow guiding channel 17. The flow guiding groove 811 extends to one end of the flow guiding channel 17. The bottom of the flow guiding groove 811 is provided with a through hole 812. The through hole 812 is used for the sliding column 51 to pass through. The sliding column 51 is slidably connected to the inner wall of the through hole 812. The water spray pipe 82 is fixedly connected to the outer wall of the mounting block 31. The nozzle of the water spray pipe 82 is directly facing the forming block 32. The water spray pipe 82 draws water from the water storage tank 84 through a water pump.

[0052] Reference Figure 2 A water collection tank 83 is fixedly connected to the ground. A water collection trough 831 is provided at the upper end of the water collection tank 83 to collect water discharged from the guide channel 811. A water storage tank 84 is fixedly connected to the ground and is located between the water collection tank 83 and the stamping table 1. A water storage trough 841 is provided at the upper end of the water storage tank 84. A drain outlet 832 is provided at the end of the water collection tank 83 facing the water storage tank 84, and the drain outlet 832 is connected to the water collection trough 831. The drain outlet 832 is close to the water collection trough 831. At the bottom of the water tank 831, one end of the guide pipe 85 is fixedly connected to the inner wall of the drain outlet 832, and the other end of the guide pipe 85 is connected to the water storage tank 841. The fixing block 86 is fixedly connected to the inner wall of the water collection tank 831. The height of the fixing block 86 is greater than the height of the drain outlet 832. One end of the shape memory alloy 87 is fixedly connected to the lower end of the fixing block 86, and the other end of the shape memory alloy 87 is fixedly connected to the sliding block 88. The sliding block 88 is used to cover the drain outlet 832.

[0053] The implementation principle of a nut production device according to an embodiment of this application is as follows: A steel block is placed in a stamping groove 11, and a forming block 32 is embedded in the stamping groove 11 to stamp the steel block. The outer wall shape of the steel block conforms to the groove wall of the stamping groove 11, and the inner wall shape of the steel block conforms to the outer wall of the forming column 531. The inner mold 53 slides down, and the spring 34 pushes the pressure block 33 to slide out, separating the waste material from the blank. The waste material slides down with the inner mold 53, and the rack 76 slides to drive the gear 72 to rotate. The rotation of the rotating column 71 drives the drive through the second synchronous pulley 73, the first synchronous pulley 74, and the synchronous belt 75. The rotating shaft 62 rotates, and the fan blade 63 rotates to generate air, blowing the waste material into the discharge channel 14 for discharge. The water discharged from the guide pipe 85 cools the molded block 32. The water falls into the guide groove 811 through the stamping groove 11 and the sliding port 12. The water in the guide groove 811 falls into the water collection tank 831 along the inclined direction of the guide groove 811. When the water temperature drops, the shape memory alloy 87 controls the sliding block 88 to slide so that the cooling water enters the water storage tank 841 for secondary use. When the water temperature rises, the shape memory alloy 87 causes the sliding block 88 to slide and block the drain port 832.

[0054] This application also discloses a manufacturing process for nuts, including the following steps:

[0055] Cut the steel into steel blocks;

[0056] Heating steel blocks inside an electric furnace;

[0057] The steel block is placed in the stamping groove 11 and stamped into a blank;

[0058] The inner mold 53 slides downward to discharge the waste material;

[0059] The inner mold 53 slides upward to push out the blank;

[0060] Cooling the blank;

[0061] The blank is tapped to form a nut.

[0062] The implementation principle of the nut production process in this application embodiment is as follows: a steel block is stamped in the stamping groove 11 to form a blank in one go, and the waste is collected. The structure is simple and the operation is convenient.

[0063] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A production apparatus for a screw cap, characterized by: The device includes a stamping table (1), an inner mold (53), a driving component (2), a forming block (32), and a pressing block (33). The upper end of the stamping table (1) is provided with a stamping groove (11), and the bottom of the stamping groove (11) is provided with a sliding opening (12). The inner mold (53) is slidably connected to the inner wall of the sliding opening (12). The driving component (2) is connected to the forming block (32) and is used to embed the forming block (32) into the stamping groove (11). The lower end of the forming block (32) is provided with a pressing groove (321), and the pressing block (33) is slidably connected to the groove wall of the pressing groove (321). The sliding direction of the pressing block (33) is vertical. It also includes a spring (34), one end of which is fixedly connected to the bottom of the groove (321), and the other end of which is fixedly connected to the pressure block (33). It also includes a fan (6), the stamping table (1) is provided with a receiving cavity (13), the receiving cavity (13) is located below the sliding port (12) and connected to the sliding port (12), the inner wall of the receiving cavity (13) is provided with a feeding channel (14), the inner wall of the receiving cavity (13) is provided with a through-hole (15), the through-hole (15) is directly opposite the feeding channel (14), the fan (6) is fixedly connected to the inner wall of the through-hole (15), and the fan (6) is used to blow the waste generated by stamping to the feeding channel (14). It also includes a guide plate (81), a sliding column (51), a mounting block (31), and a water spray pipe (82). The inner wall of the receiving cavity (13) is provided with a flow channel (17). The guide plate (81) is fixedly connected to the inner wall of the receiving cavity (13). The height of the upper surface of the guide plate (81) increases as it moves away from the flow channel (17). One end of the guide plate (81) extends into the flow channel (17). The guide plate (81) is provided with a through hole (812). The sliding column (51) is slidably connected to the inner wall of the through hole (812). The upper end of the sliding column (51) is fixedly connected to the inner mold (53). The mounting block (31) is fixedly connected to the driving component (2) and the forming block (32). The water spray pipe (82) is fixedly connected to the mounting block (31). The opening of the water spray pipe (82) faces the forming block (32).

2. The nut production apparatus according to claim 1, characterized by: The inner mold (53) includes a forming column (531) and an ejector ring (532). The ejector ring (532) is coaxially fixedly connected to the outer wall of the forming column (531), and the outer wall of the ejector ring (532) is slidably connected to the inner wall of the sliding port (12).

3. The nut production equipment according to claim 1, characterized in that: The fan (6) includes a bracket (61), a drive shaft (62) and a fan blade (63). The bracket (61) is fixedly connected to the inner wall of the opening (15). The drive shaft (62) is rotatably connected to the bracket (61) around its own axis. The rotation axis of the drive shaft (62) is parallel to the axis of the opening (15). The fan blade (63) is fixedly connected to the outer wall of the drive shaft (62). The inner mold (53) slides up and down and drives the drive shaft (62) to rotate through the transmission assembly (7).

4. The nut production equipment according to claim 3, characterized in that: The transmission assembly (7) includes a rack (76), a rotating column (71), a gear (72), a first synchronous pulley (74), a second synchronous pulley (73), and a synchronous belt (75). The rack (76) is fixedly connected to the lower end of the inner mold (53). The rotating column (71) is rotatably connected to the inner wall of the receiving cavity (13) around its own axis. The gear (72) is coaxially fixedly connected to one end of the rotating column (71). The rack (76) meshes with the gear (72). The first synchronous pulley (74) is coaxially fixedly connected to the drive shaft (62). The second synchronous pulley (73) is coaxially fixedly connected to the rotating column (71). The synchronous belt (75) is sleeved on the outer periphery of the first synchronous pulley (74) and the second synchronous pulley (73).

5. The nut production equipment according to claim 1, characterized in that: A nut production device also includes a water collection tank (83), the upper end of which is provided with a water collection trough (831), which is used to receive water discharged from the guide plate (81).

6. The nut production equipment according to claim 5, characterized in that: A nut production device further includes a water storage tank (84), a guide pipe (85), a fixing block (86), a shape memory alloy (87), and a sliding block (88). The upper end of the water storage tank (84) is provided with a water storage tank (841), and the outer wall of the water collection tank (83) is provided with a drain outlet (832). One end of the guide pipe (85) is fixedly connected to the inner wall of the drain outlet (832), and the other end of the guide pipe (85) is connected to the water storage tank (841). The fixing block (86) is fixedly connected to the inner wall of the water collection tank (831). One end of the shape memory alloy (87) is fixedly connected to the fixing block (86), and the other end of the shape memory alloy (87) is fixedly connected to the sliding block (88). The sliding block (88) is used to cover the drain outlet (832).

7. A manufacturing process for nuts, comprising the nut manufacturing equipment described in any one of claims 1-6, characterized in that, Includes the following steps: Cut the steel into steel blocks; Heating the steel block; The steel block is placed in the stamping groove (11) and stamped into a blank; The inner mold (53) slides upward to push out the blank; Cooling the blank; The blank is tapped to form a nut.

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