Handle punching machine

Abstract

The present invention relates to a handle punching machine, comprising a straightening assembly, a feeding assembly and a forming device, wherein the forming device comprises a forming die, an upper die, a side top die and a lower die, wherein the upper die and the lower die are respectively movably arranged on the upper and lower sides of the forming die, and two side top dies are movably arranged at the two oblique lower parts of the forming die; the forming device is provided with a cutting die on a side close to the feeding assembly, and the cutting die cooperates with the upper die to cut the wire material moved to the forming device into a single section of wire material, and the single section of wire material is positioned on the upper side surface of the forming die, and the upper die cooperates with the upper side surface, the left side surface and the right side surface of the forming die to stamp the single section of wire material into a C-shaped semi-finished product; the two side top dies simultaneously cooperate with the lower side surface of the forming die to stamp the C-shaped semi-finished product into a G-shaped semi-finished product; the lower die cooperates with the lower side surface of the forming die to stamp the G-shaped semi-finished product into a G-shaped handle. The present invention forms the wire material into a handle through three stamping processes, and has a fast forming speed and high production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of stamping equipment, in particular to a handle stamping machine. Background Art

[0002] Handles are installed on items such as boxes and drawers to facilitate people's use. Handles include plastic handles, wooden handles and metal handles. Among them, metal handles are strong and not easy to damage. In the production process of metal handles, multiple processing steps need to be completed on multiple different equipment. For example, a manufacturing method of a handle disclosed in Chinese invention patent application number CN202111158216.7 saws the profile according to the length of a single handle; stamps out the mounting parts on the sides of each handle; uses CNC machine to machine the bending V-grooves on the back of the handle near both ends, the hollow holes on the front of the handle, and the decorative part mounting surface on the back of the handle; folds the handle into a channel steel cross-section along the bending V-groove; uses CNC machine to machine the L-shaped reinforcement assembly groove at the bend of the side of the handle and the arc at the bending corner of the handle; clamps the back of the handle on the fixture facing up and sandblasts the back of it; clamps the front of the handle on the fixture facing up and draws the front of it; fixes the handle to a special hanger; anodizes the handle; removes the handle from the hanger; and assembles the L-shaped reinforcement into the above-mentioned L-shaped reinforcement assembly groove. The solution of this patent uses a sawing machine, a punching machine, a CNC machine, and a bending machine to form the structure of the handle. The process is complicated, the production cost is high, and the production efficiency is low. Summary of the invention

[0003] In order to solve the deficiencies of the prior art, the present invention provides a handle punching machine.

[0004] The present invention provides a handle punching machine, comprising a straightening component, a feeding component and a forming device which are sequentially arranged along the feeding direction of a wire material, wherein the straightening component performs horizontal and vertical straightening operations on the wire material, and the feeding component conveys the wire material to the forming device in a clamping manner.

[0005] Wherein, the forming device comprises a forming die, an upper die, a side top die and a lower die, the upper side surface, the left side surface, the right side surface and the lower side surface of the forming die are all forming surfaces, the upper die and the lower die are respectively movably arranged on the upper and lower sides of the forming die, and two side top dies are movably arranged at the two oblique lower parts of the forming die; the forming device is provided with a cutting die on the side close to the feeding assembly, the cutting die cooperates with the upper die to cut the wire material moved to the forming device into a single section of wire material, the single section of wire material is positioned on the upper side surface of the forming die, the upper die cooperates with the upper side surface, the left side surface and the right side surface of the forming die to stamp the single section of wire material into a C-shaped semi-finished product; the two side top dies cooperate with the lower side surface of the forming die at the same time to stamp the C-shaped semi-finished product into a G-shaped semi-finished product; the lower die cooperates with the lower side surface of the forming die to stamp the G-shaped semi-finished product into a G-shaped handle; a blanking top die is provided on the outer side of the forming die, and the blanking top die moves along the surface of the forming die to eject the G-shaped handle from the forming die.

[0006] In some embodiments, the straightening assembly includes a plurality of horizontal straightening wheels and a plurality of vertical straightening wheels, the axial direction of the horizontal straightening wheels is perpendicular to the axial direction of the vertical straightening wheels, the plurality of horizontal straightening wheels are staggered on the horizontal straightening plate, the plurality of horizontal straightening wheels are arranged in two rows, a horizontal straightening channel is formed between the two rows of horizontal straightening wheels, the plurality of vertical straightening wheels are staggered on the vertical straightening plate, the plurality of vertical straightening wheels are arranged in two rows, a vertical straightening channel is formed between the two rows of vertical straightening wheels; the horizontal straightening channel and the vertical straightening channel are distributed along the same straight line.

[0007] In some embodiments, the feeding assembly includes a first pinch roller and a second pinch roller, the first pinch roller and the second pinch roller are arranged up and down, and are transmission-connected to a feeding motor, and the wire is clamped between the first pinch roller and the second pinch roller.

[0008] In some embodiments, the cutting die is provided with a material hole, and the wire passes through the material hole. The cutting die cooperates with the upper die to cut the wire extending from the material hole. The top die for material discharge is provided with a top block protruding in the material discharge direction. The top block is arranged along the upper side surface of the forming die. A positioning surface for limiting a single section of wire is formed between the top block and the upper side surface of the forming die. The top block is provided with a guide surface inclined toward the direction of the cutting die, and the wire head is guided to the positioning surface through the guide surface.

[0009] In some embodiments, the left side and the right side are both inclined between the upper side and the lower side, the lower side of the molding mold is provided with a molding groove, the molding groove is located at the corner of the molding mold, the molding mold is provided with a plurality of heat dissipation holes along the thickness direction, and the molding groove is not connected to the heat dissipation holes.

[0010] In some of the embodiments, transition arc surfaces are provided at the connection between the upper side surface and the left side surface, the connection between the upper side surface and the right side surface, the connection between the lower side surface and the left side surface, and the connection between the lower side surface and the right side surface.

[0011] In some embodiments, the upper mold is installed on the lower side of the first moving block, the first moving block is installed on the first guide rail fixedly connected to the frame, the first moving block is transmission-connected to the first oil cylinder, the first oil cylinder is fixed to the frame through a first fixed seat, and the first oil cylinder drives the first moving block and the upper mold to move along the first guide rail; the upper mold is provided with a C-shaped punching port matching the upper side, left side, and right side of the forming mold, and the inner wall of the punching port and the lower end face of the upper mold are both provided with a first punching groove matching the cross-section of the wire.

[0012] In some embodiments, the upper mold is provided with mounting holes on both sides of the stamping port, the mounting holes penetrate the upper mold along the thickness direction, the mounting holes are provided with a first forming roller, the upper mold is provided with a fixing groove along the length direction, the fixing groove is communicated with the mounting hole, a mounting plate pivotally connected to the first forming roller is fixed in the fixing groove, and the wheel surface of the first forming roller is provided with a first arc groove communicated with the first stamping groove.

[0013] In some embodiments, the side top mold is a second forming roller, the second forming roller is mounted on the upper side of a second moving block, the second moving block is mounted on a second guide rail fixedly connected to the frame, the second moving block is transmission-connected to a second oil cylinder, the second oil cylinder is fixed to the frame through a second fixed seat, and the second oil cylinder drives the second moving block and the side top mold to move along the second guide rail; the wheel surface of the second forming roller is provided with a second arc groove matching the cross-section of the wire.

[0014] In some embodiments, the lower die is installed on the upper side of the third moving block, the third moving block is installed on the third guide rail fixedly connected to the frame, the third moving block is transmission-connected to the third oil cylinder, the third oil cylinder is fixed to the frame through a third fixed seat, and the third oil cylinder drives the third moving block and the lower die to move along the third guide rail; the lower die is provided with a forming block matching the forming groove, and the forming block is provided with a third stamping groove matching the cross-section of the wire.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the wire is straightened by the straightening assembly, the wire is conveyed by the feeding assembly, the wire is cut into single-section wires according to length by the cooperation of the upper die and the cutting die, the upper die bends the two ends of the single-section wire downward to form a C-shaped semi-finished product, the side top dies on both sides bend the ends of the C-shaped semi-finished product inward to form a G-shaped semi-finished product, the G-shaped semi-finished product is stamped and shaped into a G-shaped handle by the lower die, and finally the G-shaped handle is ejected and discharged by the blanking top die. The wire is stamped into a handle through three times, and the forming speed is fast and the production efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the handle punching machine according to an embodiment of the present application.

[0017] Figure 2 It is a front view structural schematic diagram of the handle punching machine according to an embodiment of the present application.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the molding device of an embodiment of the present application.

[0019] Figure 4 It is a structural schematic diagram of the handle molding process of an embodiment of the present application.

[0020] Reference numerals: 101, wire; 102, single-section wire; 103, C-shaped semi-finished product; 104, G-shaped semi-finished product; 105, G-shaped handle; 106, hook; 201, rack; 1. Straightening assembly; 11. Horizontal straightening wheel; 12. Vertical straightening wheel; 13. Horizontal straightening plate; 14. Vertical straightening plate; 2. Feeding assembly; 21. First pinch roller; 22. Second pinch roller; 23. Speed ​​reducer; 3. Molding device; 4. Molding die; 41. Upper side surface; 42. Left side surface; 43. Right side surface; 44. Lower side surface; 45. Molding groove; 46. Heat dissipation hole; 47. Transition arc surface; 5. Upper die; 50. C-shaped punching port; 51. First punching groove; 52. Mounting hole; 53. First forming roller; 54. First arc groove; 55. Mounting plate; 56. First moving block; 57. First guide rail; 58. First oil cylinder; 59. First fixing seat; 6. Side top mold; 61. Second arc groove; 62. Second moving block; 63. Second guide rail; 64. Second oil cylinder; 65. Second fixed seat; 7. lower die; 71. forming block; 72. third punching groove; 73. third moving block; 74. third guide rail; 75. third oil cylinder; 76. third fixed seat; 8. Cutting die; 81. Material hole; 9. Top die for blanking; 91. Top block; 92. Guide surface. DETAILED DESCRIPTION

[0021] Specific embodiments of the present invention will be described with reference to the accompanying drawings.

[0022] refer to Figure 1 The figure is a schematic diagram of the three-dimensional structure of the handle punching machine, the rear side of the handle punching machine is a frame 201, the front side of the frame 201 is a large plate, a forming device 3 is arranged on the large plate, a feeding component 2 and a straightening component 1 are arranged on one side of the forming device 3, the straightening component 1 is used to straighten the wire 101, the wire 101 is transported to the forming device 3 through the feeding component 2, and the single-section wire 102 is stamped three times by the forming device 3 to form a handle.

[0023] refer to Figures 1 to 4 A handle punching machine includes a straightening component 1, a feeding component 2 and a forming device 3 which are sequentially arranged along the feeding direction of a wire 101. The straightening component 1 straightens the wire 101 in the horizontal and vertical directions, and the feeding component 2 conveys the wire 101 to the forming device 3 in a clamping manner.

[0024] Among them, the forming device 3 includes a forming die 4, an upper die 5, a side top die 6 and a lower die 7. The upper side surface 41, the left side surface 42, the right side surface 43 and the lower side surface 44 of the forming die 4 are all forming surfaces. The upper die 5 and the lower die 7 are movably arranged on the upper and lower sides of the forming die 4, respectively. Two side top dies 6 are movably arranged at the two oblique lower parts of the forming die 4. The forming device 3 is provided with a cutting die 8 on the side close to the feeding assembly 2. The cutting die 8 cooperates with the upper die 5 to cut the wire 101 moved to the forming device 3 into a single section of wire 102. The single section of wire 102 is positioned on the upper side surface 41 of the forming die 4. The mold 5 cooperates with the upper side surface 41, the left side surface 42, and the right side surface 43 of the forming mold 4 to punch out the single-section wire 102 into a C-shaped semi-finished product 103; the two side top molds 6 simultaneously cooperate with the lower side surface 44 of the forming mold 4 to punch out the C-shaped semi-finished product 103 into a G-shaped semi-finished product 104; the lower mold 7 cooperates with the lower side surface 44 of the forming mold 4 to punch out the G-shaped semi-finished product 104 into a G-shaped handle 105; a blanking top mold 9 is provided on the outer side of the forming mold 4, and the blanking top mold 9 moves along the surface of the forming mold 4 to eject the G-shaped handle 105 from the forming mold 4.

[0025] The handle punching machine of the present application straightens the wire 101 through the straightening component 1, conveys the wire 101 through the feeding component 2, and cuts the wire 101 into single-section wire 102 according to length through the cooperation of the upper die 5 and the cutting die 8. The upper die 5 bends the two ends of the single-section wire 102 downward to form a C-shaped semi-finished product 103, and the side top dies 6 on both sides bend the ends of the C-shaped semi-finished product 103 inward to form a G-shaped semi-finished product 104. The G-shaped semi-finished product 104 is punched and shaped into a G-shaped handle 105 by the lower die 7. Finally, the G-shaped handle 105 is ejected by the blanking top die 9. The wire 101 is formed into a handle through three stamping processes, and the forming speed is fast and the production efficiency is high.

[0026] In order to calibrate the wire 101, in this embodiment, refer to Figure 1 and Figure 2 The straightening assembly 1 includes a plurality of horizontal straightening wheels 11 and a plurality of vertical straightening wheels 12. The axial direction of the horizontal straightening wheel 11 is perpendicular to the axial direction of the vertical straightening wheel 12. The plurality of horizontal straightening wheels 11 are staggered on the horizontal straightening plate 13. The plurality of horizontal straightening wheels 11 are arranged in two rows. A horizontal straightening channel is formed between the two rows of horizontal straightening wheels 11. The plurality of vertical straightening wheels 12 are staggered on the vertical straightening plate 14. The plurality of vertical straightening wheels 12 are arranged in two rows. A vertical straightening channel is formed between the two rows of vertical straightening wheels 12. The horizontal straightening channel and the vertical straightening channel are distributed along the same straight line.

[0027] It can be understood that, with such an arrangement, the cross-section of the wire 101 is circular or oblong. Before production, the wire 101 is stored in the form of a coil. The wire 101 has a certain curvature. Before being conveyed to the forming device 3, the wire 101 first passes through the horizontal straightening channel of multiple horizontal straightening wheels 11 and the vertical straightening channel of multiple vertical straightening wheels 12, so that the wire 101 will be straightened in both horizontal and vertical directions. The straightening speed is fast, and after straightening is completed, it is conveyed to the feeding assembly 2.

[0028] In order to convey the wire 101, in this embodiment, refer to Figure 1 and Figure 2 The feeding assembly 2 includes a first pinch roller 21 and a second pinch roller 22 . The first pinch roller 21 and the second pinch roller 22 are arranged up and down and are transmission-connected to a feeding motor. The wire 101 is clamped between the first pinch roller 21 and the second pinch roller 22 .

[0029] It is understandable that with such a configuration, the surface of the wire 101 is relatively smooth, and the wire 101 is clamped by two sets of first pinch rollers 21 and second pinch rollers 22, and the feeding motor synchronously drives the two sets of first pinch rollers 21 and second pinch rollers 22 to rotate through the reducer 23 and gears, thereby driving the wire 101 to move.

[0030] In order to guide the wire 101 to be accurately delivered to the forming die 4, in this embodiment, reference Figures 1 to 3 The cutting die 8 is provided with a material hole 81, and the wire 101 passes through the material hole 81. The cutting die 8 cooperates with the upper die 5 to cut off the wire 101 extending from the material hole 81. The top die 9 for unloading is provided with a top block 91 protruding in the unloading direction. The top block 91 is arranged along the upper side surface 41 of the forming die 4. A positioning surface for limiting the single-section wire 102 is formed between the top block 91 and the upper side surface 41 of the forming die 4. The top block 91 is inclined toward the cutting die 8 and is provided with a guide surface 92, and the head of the wire 101 is guided to the positioning surface through the guide surface 92.

[0031] It can be understood that, in this arrangement, the wire 101 passes through the material hole 81, the aperture of the material hole 81 is slightly larger than the outer diameter of the wire 101, and the wire 101 is guided through the material hole 81. After the wire 101 extends out of the material hole 81, it moves to the forming die 4, thereby preventing the wire 101 from shaking and deforming when being cut, which affects the subsequent feeding of the wire 101. The head of the wire 101 is guided to the positioning surface by the guide surface 92. When the wire 101 extending to the forming die 4 is long enough, the upper die 5 Moving downward, the contact position between the upper die 5 and the cutting die 8 cuts the wire 101 into single-section wire 102; the rear of the top die 9 is connected to a feeding cylinder (not shown in the attached drawings), and the feeding cylinder drives the top die 9 to move along the forming die 4 to eject the handle from the forming die 4. During the ejection process, the ejector block 91 first pushes the handle on the upper side 41 of the forming die 4, so that the upper side of the handle will first detach from the forming die 4 to avoid the handle being stuck on the forming die 4, thereby ensuring that the handle can be unloaded smoothly.

[0032] In order to form the hook 106 of the handle, in this embodiment, refer to Figure 2 The left side surface 42 and the right side surface 43 are both inclinedly arranged between the upper side surface 41 and the lower side surface 44. The lower side surface 44 of the forming mold 4 is provided with a forming groove 45, and the forming groove 45 is located at the corner of the forming mold 4. The forming mold 4 is provided with a plurality of heat dissipation holes 46 along the thickness direction, and the forming groove 45 is not connected with the heat dissipation holes 46.

[0033] It is understandable that, with such an arrangement, the forming mold 4 will generate heat due to friction during the process of continuously forming the handle. The forming mold 4 dissipates heat through the heat dissipation holes 46 to prevent the temperature of the forming mold 4 from gradually increasing, ensure that the size of the forming mold 4 remains stable, and ensure the consistency of the handle molding. The inclined left side 42 and right side 43 can compensate for the deformation of the handle after molding, so that after the handle is ejected from the forming mold 4, the handle can be deformed into a qualified shape through the elastic deformation of its own material, and the pull hook 106 of the handle is formed through the molding groove 45.

[0034] In order to shape the corner of the handle, in this embodiment, refer to Figure 2Transition arc surfaces 47 are provided at the connection between the upper side surface 41 and the left side surface 42 , the connection between the upper side surface 41 and the right side surface 43 , the connection between the lower side surface 44 and the left side surface 42 , and the connection between the lower side surface 44 and the right side surface 43 .

[0035] It is understandable that, with such a configuration, the handle needs to be formed with four corners, and the four corners of the handle are formed by the four transition arc surfaces 47 of the forming die 4 .

[0036] In order to form the single-length wire 102 into a C-shaped semi-finished product 103, in this embodiment, Figures 1 to 3 The upper die 5 is installed on the lower side of the first moving block 56, and the first moving block 56 is installed on the first guide rail 57 fixedly connected to the frame 201. The first moving block 56 is transmission-connected to the first oil cylinder 58, and the first oil cylinder 58 is fixed to the frame 201 through the first fixed seat 59. The first oil cylinder 58 drives the first moving block 56 and the upper die 5 to move along the first guide rail 57; the upper die 5 is provided with a C-shaped punching port 50 matching the upper side surface 41, the left side surface 42, and the right side surface 43 of the forming die 4, and the inner wall of the punching port and the lower end surface of the upper die 5 are both provided with a first punching groove 51 matching the cross-section of the wire 101.

[0037] It is understandable that, with such a configuration, the upper die 5 moves relative to the cutting die 8 under the drive of the first oil cylinder 58, thereby cutting the wire 101 to form a single section of wire 102, and the upper die 5 continues to descend through the C-shaped punching port 50 to bend the single section of wire 102 into a C-shaped semi-finished product 103.

[0038] In order to avoid damaging the single section wire 102 during the forming process of the C-shaped semi-finished product 103, in this embodiment, Figure 3 The upper die 5 is provided with mounting holes 52 on both sides of the stamping port, the mounting holes 52 penetrate the upper die 5 along the thickness direction, the mounting holes 52 are provided with the first forming roller 53, the upper die 5 is provided with a fixing groove along the length direction, the fixing groove is communicated with the mounting holes 52, a mounting plate 55 pivotally connected to the first forming roller 53 is fixed in the fixing groove, and the wheel surface of the first forming roller 53 is provided with a first arc groove 54 communicated with the first stamping groove 51.

[0039] It is understandable that, with such an arrangement, during the process of bending the single-section wire 102 to form the C-shaped semi-finished product 103, the bending angles of both ends of the single-section wire 102 are close to 90°. During the bending process, the first forming roller 53 rolls and rubs against the wire 101, thereby avoiding the friction between the first stamping groove 51 and the wire 101 causing the single-section wire 102 to be stretched.

[0040] In order to avoid damaging the C-shaped semi-finished product 103 during the forming process of the G-shaped semi-finished product 104, in this embodiment, Figure 3The side top mold 6 is a second forming roller, which is installed on the upper side of a second moving block 62, and the second moving block 62 is installed on a second guide rail 63 fixedly connected to the frame 201. The second moving block 62 is transmission-connected to a second oil cylinder 64, and the second oil cylinder 64 is fixed to the frame 201 through a second fixed seat 65. The second oil cylinder 64 drives the second moving block 62 and the side top mold 6 to move along the second guide rail 63; the wheel surface of the second forming roller is provided with a second arc groove 61 matching the cross-section of the wire 101.

[0041] It can be understood that, with such an arrangement, the second oil cylinder 64 drives the side top mold 6 to move toward the forming groove 45, thereby bending the two ends of the C-shaped semi-finished product 103 into the forming groove 45. In the process of bending to form the G-shaped semi-finished product 104, the bending angle of the two ends of the C-shaped semi-finished product 103 is close to 90°. The rolling friction between the second forming roller and the wire 101 can prevent the wire 101 from being stretched, thereby improving the stamping quality of the handle.

[0042] In order to shape the G-shaped semi-finished product 104 into a G-shaped handle 105, in this embodiment, reference Figure 3 The lower die 7 is mounted on the upper side of the third moving block 73, the third moving block 73 is mounted on the third guide rail 74 fixedly connected to the frame 201, the third moving block 73 is transmission-connected to the third oil cylinder 75, the third oil cylinder 75 is fixed to the frame 201 through the third fixed seat 76, and the third oil cylinder 75 drives the third moving block 73 and the lower die 7 to move along the third guide rail 74; the lower die 7 is provided with a forming block 71 matching the forming groove 45, and the forming block 71 is provided with a third stamping groove 72 matching the cross-section of the wire 101.

[0043] It is understandable that, with such an arrangement, the side top mold 6 bends the two ends of the C-shaped semi-finished product 103 into the forming groove 45 to preliminarily form the pull hook 106 of the handle, and the forming block 71 of the lower mold 7 extends into the forming groove 45 to further shape the pull hook 106 to complete the stamping of the handle.

[0044] like Figure 4 As shown, the wire 101 is first cut into single-length wire 102 of a specified length, and then the single-length wire 102 is pressed down into a C-shaped semi-finished product 103 by the upper die 5, and then the C-shaped semi-finished product 103 is punched into a G-shaped semi-finished product 104 by two side top dies 6, and finally the G-shaped semi-finished product 104 is punched and shaped into a G-shaped handle 105 by the lower die 7.

[0045] The straightening component 1 of the embodiment of the present application straightens the wire 101 in the horizontal and vertical directions, and the wire 101 is conveyed by the feeding component 2 in a clamping manner. The wire 101 is cut and bent three times by the forming device 3 to form a handle. The handle is ejected from the forming die 4 by the blanking top die 9 to complete the blanking. The wire 101 can be quickly stamped into a handle with high production efficiency.

[0046] The above does not limit the technical scope of the present invention in any way. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A handle punching machine, characterized in that: It includes a straightening assembly, a feeding assembly and a forming device which are sequentially arranged along the running direction of the wire material, the straightening assembly performs horizontal and vertical straightening operations on the wire material, and the feeding assembly conveys the wire material to the forming device in a clamping manner; The molding device comprises a molding die, an upper die, a side top die and a lower die, wherein the upper side, left side, right side and lower side of the molding die are all molding surfaces, the upper die and the lower die are movably arranged at the upper and lower sides of the molding die respectively, and two side top dies are movably arranged at the two oblique lower parts of the molding die; The forming device is provided with a cutting die on one side close to the feeding assembly, and the cutting die cooperates with the upper die to cut the wire material moved to the forming device into a single section of wire material, and the single section of wire material is positioned on the upper side surface of the forming die, and the upper die cooperates with the upper side surface, the left side surface, and the right side surface of the forming die to stamp the single section of wire material into a C-shaped semi-finished product; the two side top dies simultaneously cooperate with the lower side surface of the forming die to stamp the C-shaped semi-finished product into a G-shaped semi-finished product; the lower die cooperates with the lower side surface of the forming die to stamp the G-shaped semi-finished product into a G-shaped handle; A material discharge ejection die is arranged on the outer side of the forming die, and the material discharge ejection die moves along the surface of the forming die to eject the G-shaped handle from the forming die.

2. The handle punching machine according to claim 1, characterized in that: The straightening assembly includes a plurality of horizontal straightening wheels and a plurality of vertical straightening wheels, the axial direction of the horizontal straightening wheels is perpendicular to the axial direction of the vertical straightening wheels, the plurality of horizontal straightening wheels are staggered on the horizontal straightening plate, the plurality of horizontal straightening wheels are arranged in two rows, a horizontal straightening channel is formed between the two rows of horizontal straightening wheels, the plurality of vertical straightening wheels are staggered on the vertical straightening plate, the plurality of vertical straightening wheels are arranged in two rows, a vertical straightening channel is formed between the two rows of vertical straightening wheels; the horizontal straightening channel and the vertical straightening channel are distributed along the same straight line.

3. The handle punching machine according to claim 1, characterized in that: The feeding assembly comprises a first pinch roller and a second pinch roller, wherein the first pinch roller and the second pinch roller are arranged up and down and are transmission-connected with a feeding motor, and the wire is clamped between the first pinch roller and the second pinch roller.

4. The handle punching machine according to claim 1, characterized in that: The cutting die is provided with a material hole, and the wire passes through the material hole. The cutting die cooperates with the upper die to cut the wire extending from the material hole. The top die for material discharge has a top block protruding in the material discharge direction. The top block is arranged along the upper side surface of the forming die. A positioning surface for limiting the position of a single section of wire is formed between the top block and the upper side surface of the forming die. The top block is provided with a guide surface inclined toward the direction of the cutting die, and the wire head is guided to the positioning surface through the guide surface.

5. The handle punching machine according to claim 1, characterized in that: The left side surface and the right side surface are both inclined between the upper side surface and the lower side surface. The lower side surface of the forming mold is provided with a forming groove, and the forming groove is located at the corner of the forming mold. The forming mold is provided with a plurality of heat dissipation holes along the thickness direction, and the forming groove is not connected with the heat dissipation holes.

6. The handle punching machine according to claim 5, characterized in that: A transition arc surface is provided at the connection between the upper side surface and the left side surface, at the connection between the upper side surface and the right side surface, at the connection between the lower side surface and the left side surface, and at the connection between the lower side surface and the right side surface.

7. The handle punching machine according to claim 5, characterized in that: The upper die is installed on the lower side of the first moving block, the first moving block is installed on the first guide rail fixedly connected to the frame, the first moving block is transmission-connected to the first oil cylinder, the first oil cylinder is fixed to the frame through the first fixed seat, and the first oil cylinder drives the first moving block and the upper die to move along the first guide rail; the upper die is provided with a C-shaped punching port matching the upper side, left side and right side of the forming die, and the inner wall of the punching port and the lower end face of the upper die are both provided with a first punching groove matching the cross-section of the wire.

8. The handle punching machine according to claim 7, characterized in that: The upper die is provided with mounting holes on both sides of the stamping port, and the mounting holes penetrate the upper die along the thickness direction. The mounting holes are provided with a first forming roller. The upper die is provided with a fixing groove along the length direction, and the fixing groove is communicated with the mounting hole. A mounting plate pivotally connected to the first forming roller is fixed in the fixing groove, and the wheel surface of the first forming roller is provided with a first arc groove communicated with the first stamping groove.

9. The handle punching machine according to claim 5, characterized in that: The side top mold is a second forming roller, which is installed on the upper side of the second moving block, and the second moving block is installed on a second guide rail fixedly connected to the frame. The second moving block is transmission-connected to the second oil cylinder, and the second oil cylinder is fixed to the frame through a second fixed seat. The second oil cylinder drives the second moving block and the side top mold to move along the second guide rail; the wheel surface of the second forming roller is provided with a second arc groove matching the cross-section of the wire.

10. The handle punching machine according to claim 5, characterized in that: The lower die is installed on the upper side of the third moving block, the third moving block is installed on the third guide rail fixedly connected to the frame, the third moving block is transmission-connected to the third oil cylinder, the third oil cylinder is fixed to the frame through the third fixed seat, and the third oil cylinder drives the third moving block and the lower die to move along the third guide rail; the lower die is provided with a forming block matching the forming groove, and the forming block is provided with a third stamping groove matching the cross-section of the wire.

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