Punch forming device for zip-top can cover body

Abstract

The punch forming device comprises a base, a portal frame is arranged at the upper end of the base, a jacking mechanism is arranged on the inner side of the portal frame, the top of the jacking mechanism is fixedly connected with the top of the inner side of the portal frame, and the telescopic end of the jacking mechanism is detachably connected with a counter weight frame; the bottom of the counterweight frame is detachably connected with an upper die, and a lower die is arranged at the upper end of the base and located on the lower portion of the inner side of the portal frame. According to the punch forming device for the zip-top can cover body, through the cooperative design of multiple structures, the device can achieve punching operation, and the upper die and the lower die can be disassembled and replaced according to production requirements; and through the structural design of the cooling mechanism, the device can physically cool the stamping parts, so that the time required by production is shortened, the production efficiency is improved, through the structural design of the cooling mechanism, the stamping parts can be uniformly taken after stamping is finished, and the convenience during taking is improved.

Description

Technical Field

[0001] The invention relates to the technical field of can manufacturing, and in particular to a stamping and forming device for a can cover. Background Art

[0002] Canned luncheon meat is popular among people due to its good taste and rich nutrition. The existing canned luncheon meat is easy to open the can lid, wherein, the canned luncheon meat is popular among people due to its good taste and rich nutrition. The existing canned luncheon meat is easy to open the can lid.

[0003] In the manufacturing process of cans, the lid of the can needs to go through multiple steps such as stamping and conveying. In actual production, the surface temperature of the stamped parts is relatively high after stamping, and natural cooling causes a long production time, which in turn affects production efficiency. For this reason, the present application proposes a stamping forming device for the lid of the can, which provides a new technical solution to solve the above-mentioned technical problems. Summary of the invention

[0004] Based on this, it is necessary to provide a stamping forming device for the can cover body to address the above-mentioned technical problems. Through the coordinated design of multiple structures, the device can realize stamping operations, and can disassemble and replace the upper mold and the lower mold according to production needs; and through the structural design of the cooling mechanism, the device can physically cool the stamped parts, thereby reducing the time required for production and improving production efficiency. And through the structural design of the cooling mechanism, the stamped parts can be uniformly removed after the stamping is completed, thereby improving the convenience of removing materials.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A punching and forming device for a can cover is used for punching and manufacturing of a can cover.

[0007] The punching and forming device for the can cover specifically comprises:

[0008] A base, a gantry is provided at the upper end of the base, a lifting mechanism is provided on the inner side of the gantry, the top of the lifting mechanism is fixedly connected to the inner top of the gantry, the telescopic end of the lifting mechanism is detachably connected to a counterweight frame, the bottom of the counterweight frame is detachably connected to an upper mold, a lower mold is provided at the upper end of the base and at a position located at the lower inner side of the gantry, the lower part of the lower mold is connected to the base through a support frame group, the support frame group is fixedly connected to the base, and the support frame group is detachably connected to the lower mold;

[0009] A guide assembly is arranged at a position inside the side of the gantry, the guide assembly is detachably connected to the end of the counterweight frame, and the guide assembly is used for guiding the movement of the counterweight frame;

[0010] A cooling mechanism is arranged at the upper end of the base, and one end of the cooling mechanism extends to the inner side of the support frame group and is located below the lower mold;

[0011] The cooling mechanism comprises a cooling trough, the lower end of which is fixedly connected to the base, a guide trough is provided at one end of the cooling trough located at the lower end of the lower mold, a guide frame is fixedly connected at the inner end of the cooling trough and located at the lower end of the guide trough, a concentration basket is provided at the inner side of the cooling trough and close to the guide frame, a draining platform is provided at one end of the cooling trough away from the guide frame, and an end of the draining platform close to the guide frame is provided as an inclined surface;

[0012] The cooling mechanism also includes a material taking driving member, which is used to drag the concentration basket from one end of the cooling tank to the upper part of the draining table at the other end.

[0013] As a preferred embodiment of the stamping forming device for the can cover provided by the present invention, a plurality of liquid permeable holes are evenly and laterally opened at the lower part of the guide frame, a guide pipe is arranged at the end of the cooling groove and close to one end of the guide frame, and a solenoid valve is arranged on the guide pipe.

[0014] As a preferred embodiment of the punching and forming device for can lids provided by the present invention, the upper portion of the concentrating basket is a rectangular frame structure, and the lower portion of the concentrating basket is a rectangular grid structure.

[0015] As a preferred embodiment of the stamping and forming device for the can cover body provided by the present invention, the material taking drive component includes a first telescopic mechanism and a second telescopic mechanism, one end of the first telescopic mechanism is away from the guide groove and is rotatably connected to the side of the cooling groove, the side of the cooling groove and located at the position of the telescopic end of the first telescopic mechanism is laterally fixedly connected with a slide rail, and a connecting slider is slidably connected inside the slide rail, the telescopic end of the first telescopic mechanism is rotatably connected to one end of the connecting slider, one end of the second telescopic mechanism is rotatably connected to the other end of the connecting slider, the telescopic end of the second telescopic mechanism is rotatably connected to a connecting frame, and the connecting frame is fixedly connected to the top of the concentrating basket.

[0016] As a preferred embodiment of the stamping forming device for the can cover body provided by the present invention, the guide assembly includes a guide rod, and the number of the guide rods is multiple, and the multiple guide rods are vertically and parallelly arranged, and the bottoms and tops of the multiple guide rods are fixedly connected to the gantry through a fixing frame, and a guide slider is vertically slidably connected to the multiple guide rods, and a protective plate is provided on the inner side of the gantry and at a position corresponding to the guide rod, and a through groove is vertically opened on the protective plate, and the end of the guide slider passes through the through groove and is detachably fixed to the end of the counterweight frame by bolts, and the protective plate is detachably fixed to the gantry by screws.

[0017] As a preferred embodiment of the stamping and forming device for the can cover body provided by the present invention, the support frame group includes a stand, the number of the stand is two, the two stands are vertically and symmetrically arranged, the bottoms of the two stands are fixedly connected to the base, the tops of the two stands are provided with placement grooves, the end of the lower mold is placed on the inner side of the placement groove opened on the top of the stand at the same end, and the lower mold is detachably fixed to the stand at the same end through a fixing member.

[0018] As a preferred embodiment of the stamping forming device for the can cover body provided by the present invention, a lifting beam is arranged between the two upright frames and below the lower mold, and the ends of the lifting beam are fixedly connected to the upright frames at the same ends, and stabilizing frames are arranged on the sides of the two upright frames, and the top and bottom of the sides of the stabilizing frames are detachably fixedly connected to the upright frames by bolts, and the bottom of the stabilizing frame is detachably fixedly connected to the base by bolts.

[0019] As a preferred embodiment of the stamping forming device for can lids provided by the present invention, the upper portion of the guide frame is inclined, the lower portion of the guide frame is vertically arranged, and one side of the concentrating basket is aligned with the vertically arranged position of the lower portion of the guide frame.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The stamping and forming device for the can cover provided by the present invention can realize stamping operations through the coordinated design of multiple structures, and can disassemble and replace the upper mold and the lower mold according to production requirements; and through the structural design of the cooling mechanism, the device can physically cool the stamped parts, thereby reducing the time required for production and improving production efficiency; and through the structural design of the cooling mechanism, the stamped parts can be uniformly removed after the stamping is completed, thereby improving the convenience of removing the materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the scheme in the present invention, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic diagram of the overall structure of the punching and forming device for the lid of an easy-pull can provided by the present invention;

[0024] Figure 2 A front view of the overall structure of the punching and forming device for the lid of an easy-pull can provided by the present invention;

[0025] Figure 3 A schematic diagram of the structure of a guide assembly of a punching and forming device for a can lid provided by the present invention;

[0026] Figure 4 An enlarged structural diagram of a guide assembly of a punching and forming device for a can lid provided by the present invention;

[0027] Figure 5 A schematic diagram of the structure of a support frame assembly for a punching and forming device for a can lid provided by the present invention;

[0028] Figure 6 A schematic diagram of the structure of a cooling mechanism of a stamping and forming device for a can lid provided by the present invention;

[0029] Figure 7 A structural cross-sectional view of a cooling mechanism of a stamping and forming device for a can lid provided by the present invention;

[0030] Figure 8 A schematic diagram of the structure of a guide frame of a punching and forming device for a can lid provided by the present invention;

[0031] Fig. 9 A schematic structural diagram of a material taking drive component of a stamping and forming device for a can lid provided by the present invention.

[0032] The markings in the figure are as follows:

[0033] 1. Base; 2. Gantry; 3. Lifting mechanism; 4. Counterweight frame; 5. Upper mold; 6. Lower mold; 7. Support frame group; 8. Cooling mechanism; 9. Fixed frame; 10. Protective plate; 11. Guide rod; 12. Guide slider; 13. Vertical frame; 14. Lifting beam; 15. Placement slot; 16. Fixing piece; 17. Stabilizing frame; 18. Cooling slot; 19. Guide slot; 20. Guide frame; 21. Concentrating basket; 22. Drainage table; 23. Material taking drive member; 24. Liquid permeable hole; 25. Guide pipe; 26. First telescopic mechanism; 27. Second telescopic mechanism; 28. Slide rail; 29. ​​Connecting slider; 30. Connecting frame. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0035] As described in the background technology, in the manufacturing process of cans, the lid part of the can needs to go through multiple steps such as stamping and conveying. In actual production, the surface temperature of the stamped parts is relatively high after stamping, and natural cooling causes a longer production time, which in turn affects production efficiency.

[0036] In order to solve this technical problem, the present invention provides a stamping and forming device for a can cover, which is applied to the stamping and manufacturing of the can cover.

[0037] Specifically, please refer to Figure 1 - Fig. 9 The punching and forming device for the can cover specifically includes:

[0038] A base 1, a gantry 2 is arranged at the upper end of the base 1, a lifting mechanism 3 is arranged on the inner side of the gantry 2, the top of the lifting mechanism 3 is fixedly connected to the inner top of the gantry 2, the telescopic end of the lifting mechanism 3 is detachably connected to a counterweight frame 4, the bottom of the counterweight frame 4 is detachably connected to an upper mold 5, a lower mold 6 is arranged at the upper end of the base 1 and located at the lower inner side of the gantry 2, the lower part of the lower mold 6 is connected to the base 1 through a support frame group 7, the support frame group 7 is fixedly connected to the base 1, and the support frame group 7 is detachably connected to the lower mold 6;

[0039] A guide assembly is arranged at a position inside the side of the gantry 2, the guide assembly is detachably connected to the end of the counterweight frame 4, and the guide assembly is used to guide the movement of the counterweight frame 4;

[0040] A cooling mechanism 8 is arranged at the upper end of the base 1, and one end of the cooling mechanism 8 extends to the inner side of the support frame group 7 and is located below the lower mold 6;

[0041] The cooling mechanism 8 includes a cooling groove 18, the lower end of the cooling groove 18 is fixedly connected to the base 1, the cooling groove 18 is provided with a guide groove 19 at one end located at the lower end of the lower mold 6, a guide frame 20 is fixedly connected to the inner end of the cooling groove 18 and located at the lower end of the guide groove 19, a concentration basket 21 is provided at the inner side of the cooling groove 18 and close to the guide frame 20, a draining platform 22 is provided at one end of the cooling groove 18 and away from the guide frame 20, and an end of the draining platform 22 close to the guide frame 20 is provided as an inclined surface;

[0042] The cooling mechanism 8 further includes a material taking driving member 23, which is used to drag the collecting basket 21 from one end of the cooling tank 18 to the upper part of the draining platform 22 at the other end.

[0043] The stamping and forming device for the can lid provided by the present invention can realize stamping operations through the coordinated design of multiple structures, and can disassemble and replace the upper mold 5 and the lower mold 6 according to production requirements; and through the structural design of the cooling mechanism 8, the device can physically cool the stamped parts, thereby reducing the time required for production and improving production efficiency; and through the structural design of the cooling mechanism 8, the stamped parts can be uniformly removed after the stamping is completed, thereby improving the convenience of removing the materials.

[0044] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0045] Embodiment 1:

[0046] Please refer to Figure 1 - Fig. 9 , a punching and forming device for a can cover, comprising:

[0047] A base 1, a gantry 2 is arranged at the upper end of the base 1, a lifting mechanism 3 is arranged on the inner side of the gantry 2, the top of the lifting mechanism 3 is fixedly connected to the inner top of the gantry 2, the telescopic end of the lifting mechanism 3 is detachably connected to a counterweight frame 4, the bottom of the counterweight frame 4 is detachably connected to an upper mold 5, a lower mold 6 is arranged at the upper end of the base 1 and located at the lower inner side of the gantry 2, the lower part of the lower mold 6 is connected to the base 1 through a support frame group 7, the support frame group 7 is fixedly connected to the base 1, and the support frame group 7 is detachably connected to the lower mold 6;

[0048] A guide assembly is arranged at a position inside the side of the gantry 2, the guide assembly is detachably connected to the end of the counterweight frame 4, and the guide assembly is used to guide the movement of the counterweight frame 4;

[0049] The cooling mechanism 8 is arranged at the upper end of the base 1, and one end of the cooling mechanism 8 extends to the inner side of the support frame group 7 and is located below the lower mold 6; it can be seen that by starting the lifting mechanism 3, the counterweight frame 4 can be driven to move downward, so that when the stamping part is moved to the position above the lower mold 6, the counterweight frame 4 can drive the upper mold 5 at the lower end to cooperate with the lower mold 6 to realize the stamping operation; the stamping part is received by the cooling mechanism 8, so as to cool the stamping part.

[0050] Specifically, the cooling mechanism 8 includes a cooling groove 18, the lower end of the cooling groove 18 is fixedly connected to the base 1, and the cooling groove 18 is provided with a guide groove 19 at one end of the lower end of the lower mold 6, and a guide frame 20 is fixedly connected to the inner end of the cooling groove 18 and at the position of the lower end of the guide groove 19, wherein the upper part of the guide frame 20 is inclined, and the lower part of the guide frame 20 is vertically arranged, and one side of the concentration basket 21 is in contact with the position of the lower part of the guide frame 20 vertically arranged, and a concentration basket 21 is arranged on the inner side of the cooling groove 18 and close to the guide frame 20, wherein the upper part of the concentration basket 21 is a rectangular frame structure, and the lower part of the concentration basket 21 is a rectangular grid structure, and a draining platform 22 is arranged inside the cooling groove 18 and at one end away from the guide frame 20, and the end of the draining platform 22 close to the guide frame 20 is arranged as an inclined surface;

[0051] It can be seen that before use, cooling liquid can be filled into the cooling tank 18 for cooling the stamping parts. When the stamping parts fall downward, they are guided by the guide groove 19 at the end of the cooling tank 18 to reduce spillage. After the stamping parts pass through the guide groove 19, the guide frame 20 guides the stamping parts again so that they fall into the collecting basket 21 and are cooled by the cooling liquid in the cooling tank 18. After the stamping is completed, the cooled stamping parts can be taken out by moving the collecting basket 21.

[0052] Specifically, the cooling mechanism 8 also includes a material-taking drive 23, which is used to drag the concentrated basket 21 from one end of the cooling trough 18 to the upper part of the draining table 22 at the other end. Further, the material-taking drive 23 includes a first telescopic mechanism 26 and a second telescopic mechanism 27, one end of the first telescopic mechanism 26 is away from the guide groove 19 and is rotatably connected to the side of the cooling trough 18, a slide rail 28 is laterally fixedly connected to the side of the cooling trough 18 and located at the telescopic end of the first telescopic mechanism 26, a connecting slider 29 is slidably connected inside the slide rail 28, the telescopic end of the first telescopic mechanism 26 is rotatably connected to one end of the connecting slider 29, one end of the second telescopic mechanism 27 is rotatably connected to the other end of the connecting slider 29, the telescopic end of the second telescopic mechanism 27 is rotatably connected to a connecting frame 30, and the connecting frame 30 is fixedly connected to the top of the concentrated basket 21.

[0053] It can be seen that after the stamping is completed, the first telescopic mechanism 26 can be started to drag the second telescopic mechanism 27 and the connecting frame 30 at the end of the second telescopic mechanism 27 can be used to drive the collecting basket 21 to move toward the draining table 22. At the same time, the second telescopic mechanism 27 can be started to drag the collecting basket 21 so that the collecting basket 21 can be completely moved to the upper part of the draining table 22, thereby realizing the removal of the stamping parts from the cooling liquid inside the cooling tank 18, and the collecting basket 21 is moved to the upper part of the draining table 22 to achieve the effect of "draining" the stamping parts, reducing the cooling liquid attached to the surface of the stamping parts and reducing the waste of cooling liquid; after the material is taken out, the first telescopic mechanism 26 and the second telescopic mechanism 27 can be started to push the collecting basket 21 from the upper end of the draining table 22 to the inside of the cooling tank 18, so as to enter the cooling liquid in the cooling tank 18 again, which is convenient for the next material taking.

[0054] Embodiment 2:

[0055] The punching and forming device for the can lid provided in Example 1 is further optimized. Specifically, Figure 7-Figure 8 As shown, a plurality of liquid permeable holes 24 are evenly and transversely opened at the lower part of the guide frame 20 , and a guide pipe 25 is arranged at the end of the cooling groove 18 and close to one end of the guide frame 20 , and a solenoid valve is arranged on the guide pipe 25 .

[0056] Through the above-mentioned structural design, the cooling liquid can enter the space below the guide frame 20 through the opened liquid permeable hole 24, thereby achieving a filtering effect and preventing some fallen stamping parts from entering the position below the guide frame 20. The cooling liquid can be circulated, filled or discharged through the guide pipe 25, and the opening and closing of the guide pipe 25 can be controlled by the solenoid valve on the guide pipe 25.

[0057] Embodiment 3:

[0058] The punching and forming device for the can lid provided in Example 1 is further optimized. Specifically, Figure 3-Figure 4 As shown, the guide assembly includes a guide rod 11, and the number of the guide rods 11 is multiple, and the multiple guide rods 11 are vertically and parallelly arranged. The bottoms and tops of the multiple guide rods 11 are fixedly connected to the gantry 2 through a fixing frame 9. A guide slider 12 is vertically slidably connected to the multiple guide rods 11. A protective plate 10 is arranged on the inner side of the gantry 2 and at a position corresponding to the guide rod 11. A through groove is vertically opened on the protective plate 10. The end of the guide slider 12 passes through the through groove and is detachably fixed to the end of the counterweight frame 4 by bolts. The protective plate 10 is detachably fixed to the gantry 2 by screws.

[0059] Through the above-mentioned structural design, the movement of the guide slider 12 can be guided and limited by the guide rod 11, and the counterweight frame 4 is guided when it moves by connecting the guide slider 12 and the end of the counterweight frame 4, so that the upper mold 5 under the counterweight frame 4 can avoid the occurrence of deviation. The fixed frame 9, the guide rod 11, and the guide slider 12 can be protected by the protective plate 10.

[0060] Embodiment 4:

[0061] The punching and forming device for the can lid provided in Example 1 is further optimized. Specifically, Figure 5 As shown, the support frame group 7 includes a stand 13, the number of the stand 13 is two, the two stands 13 are vertically and symmetrically arranged, the bottoms of the two stands 13 are fixedly connected to the base 1, the tops of the two stands 13 are provided with placement grooves 15, the end of the lower mold 6 is placed on the inner side of the placement groove 15 opened on the top of the stand 13 at the same end, and the lower mold 6 is detachably fixed to the stand 13 at the same end through a fixing member 16.

[0062] Furthermore, a lifting beam 14 is provided between the two uprights 13 and below the lower mold 6, and the ends of the lifting beam 14 are fixedly connected to the uprights 13 at the same end. Stabilizing frames 17 are provided on the sides of the two uprights 13, and the top and bottom of the sides of the stabilizing frames 17 are detachably fixedly connected to the uprights 13 by bolts, and the bottom of the stabilizing frames 17 is detachably fixedly connected to the base 1 by bolts.

[0063] Through the above structural design, it can be known that the positioning and placement of the lower mold 6 can be achieved through the placement groove 15 opened on the top of the stand 13, the lower mold 6 can be fixed through the fixing piece 16, and the stability of the stand 13 can be effectively improved through the stabilizing frame 17.

Claims

1. A punching and forming device for a can lid, characterized in that: include: A base (1), wherein a gantry (2) is arranged at the upper end of the base (1), a lifting mechanism (3) is arranged on the inner side of the gantry (2), the top of the lifting mechanism (3) is fixedly connected to the inner top of the gantry (2), the telescopic end of the lifting mechanism (3) is detachably connected to a counterweight frame (4), the bottom of the counterweight frame (4) is detachably connected to an upper mold (5), a lower mold (6) is arranged at the upper end of the base (1) and at a position located at the lower inner side of the gantry (2), the lower part of the lower mold (6) is connected to the base (1) via a support frame group (7), the support frame group (7) is fixedly connected to the base (1), and the support frame group (7) is detachably connected to the lower mold (6); A guide assembly, which is arranged at a position inside the side of the gantry (2), the guide assembly being detachably connected to the end of the counterweight frame (4), and the guide assembly being used for guiding the movement of the counterweight frame (4); A cooling mechanism (8) is arranged at the upper end of the base (1), one end of the cooling mechanism (8) extending to the inner side of the support frame group (7) and located below the lower mold (6); The cooling mechanism (8) comprises a cooling groove (18), the lower end of the cooling groove (18) is fixedly connected to the base (1), the cooling groove (18) is provided with a guide groove (19) at one end located at the lower end of the lower mold (6), a guide frame (20) is fixedly connected to the inner end of the cooling groove (18) and at a position located at the lower end of the guide groove (19), a concentration basket (21) is provided at the inner side of the cooling groove (18) and at a position close to the guide frame (20), a draining platform (22) is provided inside the cooling groove (18) and at one end away from the guide frame (20), and the draining platform (22) is provided with an inclined surface at one end close to the guide frame (20); The cooling mechanism (8) further comprises a material taking driving member (23), wherein the material taking driving member (23) is used to drag the concentration basket (21) from one end of the cooling tank (18) to the upper part of the draining platform (22) at the other end.

2. The punching and forming device for the can lid according to claim 1, characterized in that: A plurality of liquid permeable holes (24) are evenly and transversely opened at the lower part of the guide frame (20); a flow guide pipe (25) is arranged at the end of the cooling groove (18) and close to one end of the guide frame (20); and a solenoid valve is arranged on the flow guide pipe (25).

3. The punching and forming device for the can lid according to claim 1, characterized in that: The upper part of the concentrating basket (21) is a rectangular frame structure, and the lower part of the concentrating basket (21) is a rectangular grid structure.

4. The punching and forming device for the can lid according to claim 1, characterized in that: The material taking drive member (23) comprises a first telescopic mechanism (26) and a second telescopic mechanism (27), one end of the first telescopic mechanism (26) is away from the guide groove (19) and is rotatably connected to the side of the cooling groove (18), a slide rail (28) is laterally fixedly connected to the side of the cooling groove (18) and located at the telescopic end of the first telescopic mechanism (26), a connecting slider (29) is slidably connected inside the slide rail (28), the telescopic end of the first telescopic mechanism (26) is rotatably connected to one end of the connecting slider (29), one end of the second telescopic mechanism (27) is rotatably connected to the other end of the connecting slider (29), the telescopic end of the second telescopic mechanism (27) is rotatably connected to a connecting frame (30), and the connecting frame (30) is fixedly connected to the top of the concentration basket (21).

5. The punching and forming device for the can lid according to claim 1, characterized in that: The guide assembly comprises a guide rod (11), wherein the number of the guide rods (11) is plural, and the guide rods (11) are arranged vertically and in parallel. The bottoms and tops of the guide rods (11) are fixedly connected to the gantry (2) via a fixing frame (9). A guide slider (12) is vertically slidably connected to the guide rods (11). A protective plate (10) is arranged on the inner side of the gantry (2) and at a position corresponding to the guide rod (11). A through slot is vertically provided on the protective plate (10). The end of the guide slider (12) passes through the through slot and is detachably fixed to the end of the counterweight frame (4) via bolts. The protective plate (10) is detachably fixedly connected to the gantry (2) via screws.

6. The punching and forming device for the can lid according to claim 1, characterized in that: The support frame group (7) comprises a stand (13), wherein the number of the stand (13) is two, the two stands (13) are vertically and symmetrically arranged, the bottoms of the two stands (13) are fixedly connected to the base (1), the tops of the two stands (13) are provided with placement grooves (15), the end of the lower mold (6) is placed inside the placement groove (15) opened on the top of the stand (13) at the same end, and the lower mold (6) is detachably fixed to the stand (13) at the same end through a fixing member (16).

7. The punching and forming device for the can lid according to claim 6, characterized in that: A lifting beam (14) is provided between the two upright frames (13) and at a position below the lower mold (6), and the ends of the lifting beam (14) are fixedly connected to the upright frames (13) at the same end. Stabilizing frames (17) are provided on the sides of the two upright frames (13), and the top and bottom of the sides of the stabilizing frames (17) are detachably fixedly connected to the upright frames (13) by bolts, and the bottom of the stabilizing frames (17) is detachably fixedly connected to the base (1) by bolts.

8. The punching and forming device for the can lid according to claim 1, characterized in that: The upper part of the guide frame (20) is arranged obliquely, the lower part of the guide frame (20) is arranged vertically, and one side of the concentration basket (21) is in contact with the position where the lower part of the guide frame (20) is arranged vertically.

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