Multi-specification self-adaptive can body roll-in and pressing combined die
Patent Information
- Application Number
- CN202522297345.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-30
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-10-30
AI Technical Summary
然而，传统的罐身加工中，限位结构通常为固定规格设计，仅能适配单一尺寸的罐身
该一种多规格自适应罐身卷圆压紧组合模具，通过设置双轴电机、螺纹柱和活动板，实现多规格罐身自适应限位；双轴电机启动时带动两组螺纹柱同步转动，由于螺纹柱与活动板的螺纹孔螺纹连接且螺纹方向相反，两组活动板会沿水平方向相互靠近或远离，进而通过电动推杆和活动杆带动限位板调整间距。此过程无需拆卸更换限位结构，可快速适配不同直径的罐身，减少停机时间，提高生产效率，解决了传统固定规格限位结构适配性差的问题；通过设置压力感应器、压杆、弹簧和控制器，实现精准压力监测与自动调节；罐身与限位板接触时，活动块受力压缩弹簧并带动压杆触碰压力感应器，压力信号传输至控制器。当压力超出预设阈值（过紧），控制器控制双轴电机驱动活动板远离；当压力低于阈值（过松），则控制活动板靠近。这一过程可实时避免罐身因限位过紧变形或过松晃动，提升加工精度和产品合格率，弥补了传统限位结构缺乏压力监测的缺陷；通过设置电动推杆，实现限位高度灵活调节；电动推杆伸缩时带动活动杆和限位板沿竖直方向升降，可根据罐身高度调整限位位置，确保限位板与罐身中部或特定高度精准接触。此设计增强了模具对不同高度罐身的适配性，扩大了适用范围。
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Figure CN224854905U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of metal product processing technology, and in particular to a multi-specification adaptive can body rolling and pressing combination mold. Background Technology
[0002] In the can body processing, rolling and pressing are key forming processes, typically performed in steps of "rolling → positioning → pressing". The rolling mechanism forms a rolling channel using relatively positioned rolling rollers, bending the flat blank into a cylindrical can body. After rolling, the can body enters the positioning mechanism for precise positioning, and then the pressing mechanism uses relatively positioned pressing rollers to press and reinforce the joints of the can body. These mechanisms are usually installed above the worktable, forming a continuous processing flow. However, in traditional can body processing, the limiting structure is usually designed with fixed specifications, which can only adapt to a single size of can body. When different sizes of can bodies need to be processed, the corresponding limiting structure must be disassembled and replaced. This is not only cumbersome and consumes a lot of downtime, affecting production efficiency, but also the frequent replacement can lead to a decrease in positioning accuracy, making it impossible for the rolled can body to accurately enter the limiting range, thus affecting the processing effect of the subsequent clamping mechanism. Meanwhile, traditional limiting structures lack pressure monitoring during processing. When limiting cans of different thicknesses or materials, it is difficult to control the force between the can and the limiting structure. This can easily lead to can deformation due to overly tight limiting or can wobbling due to overly loose limiting, thus affecting the pressing quality of the can. Therefore, there is an urgent need for a limiting component that can easily adapt to cans of different sizes and accurately monitor the limiting pressure, connecting the rolling mechanism and the pressing mechanism to achieve efficient and high-quality can processing. To this end, a multi-specification adaptive can rolling and pressing combination mold is provided. Utility Model Content
[0003] The purpose of this application is to provide a multi-specification adaptive tank body rolling and pressing combination mold, which can be easily adapted to tank bodies of different sizes and can achieve accurate pressure monitoring and automatic adjustment.
[0004] This application provides a multi-specification adaptive can body rolling and pressing combination mold, which adopts the following technical solution: It includes a worktable. Above the worktable, along the can body processing path, are sequentially arranged a rolling mechanism for bending flat blanks into cylindrical can bodies, and a limiting mechanism for limiting the rolled can body. A pressing mechanism is located on the side of the limiting mechanism away from the rolling mechanism. The limiting mechanism includes a housing, which is fixedly connected to the upper surface of the worktable. A dual-axis motor is fixedly connected inside the housing. Both ends of the output shaft of the dual-axis motor are fixedly connected to threaded columns. Movable plates are provided at the ends of the two sets of threaded columns away from one end, and threads are provided at the ends of the two sets of movable plates near the other end. The threaded post is threadedly connected to the threaded hole. Both sets of movable plates are fixedly connected to electric push rods at their far ends. Both sets of electric push rods are provided with movable rods at their upper ends. Both sets of movable rods are provided with grooves at their near ends and movable blocks are movably connected inside them. Both sets of movable blocks are fixedly connected to limit plates at their near ends. Both sets of movable blocks are fixedly connected to pressure rods at their far ends. A pressure sensor is fixedly connected inside the groove. A spring is sleeved on the surface of the pressure rod and the pressure sensor. One end of the spring is fixedly connected inside the groove, and the other end is fixedly connected to the end of the movable block away from the limit plate. The dual-axis motor and the pressure sensor are both electrically connected to an external controller with a preset threshold. By adopting the above technical solution, and setting up a structure including a dual-axis motor, threaded column, movable plate, electric push rod, movable rod, movable block, limit plate, pressure rod, pressure sensor, spring, and controller, adaptive limiting for tanks of different sizes is achieved. During operation, the dual-axis motor drives the threaded column to rotate, moving the movable plate. Combined with the extension and retraction of the electric push rod, the position of the limit plate can be quickly adjusted to adapt to various tank sizes. Compared to traditional fixed limiting structures, this significantly reduces downtime for changing specifications. The pressure sensor monitors the pressure between the tank and the limit plate in real time. When the pressure exceeds or falls below the preset range, the controller promptly controls the dual-axis motor to adjust and stabilize the pressure within a suitable range, reducing tank deformation and shaking, and improving the pass rate of subsequent pressing processes.
[0005] Preferably, a slider is fixedly connected to the surface of the movable plate, and a groove is provided inside the outer shell, with the slider movably connected inside the groove.
[0006] By adopting the above technical solution, the slider on the surface of the movable plate cooperates with the groove inside the outer shell to guide the movement of the movable plate, so that the movable plate moves smoothly along a straight line under the drive of the threaded column, avoiding deviation or jamming, ensuring the positioning accuracy of the limit plate on the tank body, and thus improving the overall stability of the tank body processing.
[0007] Preferably, the thread directions of the two sets of threaded posts are opposite, and the thread directions of the two sets of threaded holes are adapted to the corresponding threaded posts.
[0008] By adopting the above technical solution, the two sets of threaded columns have opposite thread directions and are adapted to the corresponding threaded holes. When the dual-axis motor rotates, the two sets of movable plates can move closer to or further away from each other synchronously and symmetrically. This ensures that the distance between the limit plates on both sides and the tank body is consistent, improves the symmetry and uniformity of the tank body limit, avoids the tank body tilting due to uneven limit on both sides, and ensures the smooth progress of the subsequent pressing process.
[0009] Preferably, the outer casing is made of a metal material.
[0010] By adopting the above technical solution, the outer shell is made of metal material, which has high structural strength and rigidity, and can provide stable installation support for internal components such as dual-axis motors, threaded columns, and movable plates, thereby extending the service life of the entire limit mechanism and reducing equipment maintenance costs.
[0011] Preferably, the connection between the electric push rod and the movable plate is provided with a reinforcing rib, and the reinforcing rib is fixedly connected to the outer wall of the electric push rod and the surface of the movable plate respectively.
[0012] By adopting the above technical solution, a reinforcing rib is set at the connection between the electric push rod and the movable plate. The reinforcing rib can disperse the force on the connection between the two, avoid loosening or breakage at the connection after long-term use, ensure that the electric push rod can stably drive the movable rod and the limit plate to move, and ensure the normal operation of the limit mechanism.
[0013] Preferably, the side of the limiting plate facing the tank body is made of a wear-resistant material.
[0014] By adopting the above technical solution, the side of the limiting plate facing the tank body is made of wear-resistant material. This material has high wear resistance, reduces wear on the contact surface of the limiting plate, extends the replacement cycle of the limiting plate, reduces production interruptions caused by frequent replacement of the limiting plate, and lowers production costs.
[0015] Preferably, the connection between the movable rod and the electric push rod is welding, and the surface of the weld is provided with an anti-rust coating.
[0016] By adopting the above technical solution, the movable rod and the electric push rod are connected by welding, and the weld is coated with an anti-rust coating. The welding connection makes the two firmly connected and not easy to loosen. The anti-rust coating can effectively isolate air and moisture, reduce corrosion at the weld, extend the connection life of the movable rod and the electric push rod, and ensure the stability of the transmission between the two.
[0017] Preferably, the spring is made of an elastic alloy material.
[0018] By adopting the above technical solution, the spring is made of an elastic alloy material, which has excellent elasticity and fatigue strength. After multiple compressions and rebounds, it can still maintain stable elastic properties, ensuring that the moving block can move smoothly when subjected to the force of the tank body. At the same time, when there is a slight change in the position of the tank body, the spring can be reset in time, maintaining the accuracy of the pressure sensor detection and ensuring the stable control of the tank body pressure by the limit mechanism.
[0019] In summary, this application includes at least one of the following beneficial technical effects: This multi-specification adaptive can body rolling and pressing combination mold achieves adaptive limiting for various can body sizes by incorporating a dual-axis motor, threaded columns, and movable plates. When the dual-axis motor starts, it drives two sets of threaded columns to rotate synchronously. Since the threaded columns are threadedly connected to the threaded holes of the movable plates with opposite thread directions, the two sets of movable plates move closer or further apart horizontally. This, in turn, adjusts the spacing of the limiting plates via an electric push rod and a movable rod. This process eliminates the need to disassemble or replace the limiting structure, allowing for rapid adaptation to can bodies of different diameters, reducing downtime, improving production efficiency, and solving the problem of poor adaptability in traditional fixed-specification limiting structures. By incorporating a pressure sensor, pressure rod, spring, and controller, precise pressure monitoring and automatic adjustment are achieved. When the can body contacts the limiting plate, the movable block compresses the spring and drives the pressure rod to touch the pressure sensor, transmitting the pressure signal to the controller. When the pressure exceeds a preset threshold (too tight), the controller controls the dual-axis motor to drive the movable plates away; when the pressure is below the threshold (too loose), the controller controls the movable plates to move closer. This process effectively prevents the can body from deforming due to excessive tightness or wobbling due to excessive looseness, improving processing accuracy and product qualification rate, and overcoming the deficiency of traditional limiting structures in lacking pressure monitoring. By incorporating an electric push rod, the limiting height can be flexibly adjusted. When the electric push rod extends or retracts, it drives the movable rod and the limiting plate to rise and fall vertically, allowing adjustment of the limiting position according to the can height, ensuring precise contact between the limiting plate and the middle or a specific height of the can body. This design enhances the mold's adaptability to can bodies of different heights, expanding its application range. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of the present application. Figure 2 This is a top view of the structure of this application; Figure 3 This is a schematic diagram of the limiting mechanism in this application, viewed from the front in three-dimensional cross-section. Figure 4 for Figure 3 Schematic diagram of the structure at point A; Figure 5 for Figure 3 A schematic diagram of the structure at point B.
[0021] In the picture: 1. Worktable; 2. Rolling mechanism; 3. Limiting mechanism; 301. Housing; 302. Dual-axis motor; 303. Threaded column; 304. Movable plate; 305. Threaded hole; 306. Electric push rod; 307. Movable rod; 308. Groove; 309. Movable block; 310. Limiting plate; 311. Pressure rod; 312. Pressure sensor; 313. Spring; 314. Slider; 315. Slide groove; 4. Clamping mechanism. Detailed Implementation
[0022] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail below.
[0023] Example 1: A multi-specification adaptive can body rolling and pressing combination mold, referring to... Figure 1 , Figure 3 and Figure 4The system includes a workbench 1. Above the workbench 1, along the can body processing path, are sequentially arranged a rolling mechanism 2 for bending flat blanks into cylindrical can bodies, and a limiting mechanism 3 for limiting the rolled can body. A clamping mechanism 4 is located on the side of the limiting mechanism 3 away from the rolling mechanism 2. The limiting mechanism 3 includes a housing 301, which is fixedly connected to the upper surface of the workbench 1. A dual-axis motor 302 is fixedly connected inside the housing 301. Threaded posts 303 are fixedly connected to both ends of the output shaft of the dual-axis motor 302. Movable plates 304 are provided at the ends of the two sets of threaded posts 303 away from each other. Threaded holes 305 are opened at the near ends of the two sets of movable plates 304, and the threaded posts 303 are threadedly connected to the threaded holes 305. Electric push rods 306 are fixedly connected to the ends of the two sets of movable plates 304 away from each other. Movable rods 307 are provided at the upper ends of the two sets of electric push rods 306. Movable rods 307 are opened at the near ends of the two sets of movable rods 307. The device has a groove 308 with movable blocks 309 connected inside. Limit plates 310 are fixedly connected to the near ends of two sets of movable blocks 309, and pressure rods 311 are fixedly connected to the far ends of the two sets of movable blocks 309. A pressure sensor 312 is fixedly connected inside the groove 308. Springs 313 are fitted onto the surfaces of the pressure rods 311 and the pressure sensor 312. One end of the spring 313 is fixedly connected inside the groove 308, and the other end is fixedly connected to the end of the movable block 309 away from the limit plate 310. A dual-axis motor 302 and the pressure sensor 312 are both electrically connected to an external controller with a preset threshold. The device incorporates a dual-axis motor 302, a threaded column 303, a movable plate 304, an electric push rod 306, a movable rod 307, movable blocks 309, a limit plate 310, a pressure rod 311, a pressure sensor 312, a spring 313, and a controller, enabling adaptive limiting for tanks of different sizes. During operation, the dual-axis motor 302 drives the threaded column 303 to rotate, which in turn moves the movable plate 304. In conjunction with the extension and retraction of the electric push rod 306, the position of the limit plate 310 can be quickly adjusted to accommodate various sizes of can bodies. Compared with the traditional fixed limit structure, this significantly reduces downtime when changing specifications. The pressure sensor 312 monitors the pressure between the can body and the limit plate 310 in real time. When the pressure exceeds or falls below the preset range, the controller promptly controls the dual-axis motor 302 to adjust and stabilize the pressure within a suitable range, reducing can body deformation and shaking, and improving the pass rate of subsequent pressing processes.
[0024] Reference Figure 1 , Figure 3 and Figure 5A slider 314 is fixedly connected to the surface of the movable plate 304. A groove 315 is provided inside the outer shell 301, and the slider 314 is movably connected inside the groove 315. The threads of the two sets of threaded posts 303 are opposite in direction, and the threads of the two sets of threaded holes 305 are adapted to the corresponding threaded posts 303. The slider 314 on the surface of the movable plate 304 cooperates with the groove 315 inside the outer shell 301 to guide the movement of the movable plate 304, so that the movable plate 304 moves smoothly in a straight line under the drive of the threaded posts 303. To avoid deviation or jamming and ensure the positioning accuracy of the limit plate 310 on the can body, thereby improving the overall stability of the can body processing, the two sets of threaded columns 303 have opposite thread directions and are adapted to the corresponding threaded holes 305. When the dual-axis motor 302 rotates, the two sets of movable plates 304 can move closer or further away from each other synchronously and symmetrically, ensuring that the distance between the limit plates 310 on both sides and the can body is consistent, improving the symmetry and uniformity of the can body limit, avoiding the can body tilting due to uneven limit on both sides, and ensuring the smooth progress of the subsequent pressing process.
[0025] Reference Figure 1 , Figure 2 and Figure 3 The outer casing 301 is made of metal. The connection between the electric push rod 306 and the movable plate 304 is provided with reinforcing ribs, which are fixedly connected to the outer wall of the electric push rod 306 and the surface of the movable plate 304 respectively. The outer casing 301 is made of metal, which has high structural strength and rigidity, and can provide stable installation support for internal components such as the dual-axis motor 302, threaded column 303, and movable plate 304, thereby extending the service life of the entire limiting mechanism 3 and reducing equipment maintenance costs. The connection between the electric push rod 306 and the movable plate 304 is provided with reinforcing ribs, which can disperse the force on the connection part and prevent loosening or breakage after long-term use. This ensures that the electric push rod 306 can stably drive the movable rod 307 and the limiting plate 310 to move, and ensures the normal operation of the limiting mechanism 3.
[0026] Reference Figure 1 , Figure 2 and Figure 3The side of the limiting plate 310 facing the tank body is made of wear-resistant material. The movable rod 307 and the electric push rod 306 are connected by welding, and the surface of the weld is covered with an anti-rust coating. The spring 313 is made of elastic alloy material. The side of the limiting plate 310 facing the tank body is made of wear-resistant material, which has high wear resistance, reduces wear on the contact surface of the limiting plate 310, extends the replacement cycle of the limiting plate 310, reduces production interruptions caused by frequent replacement of the limiting plate 310, and reduces production costs. The movable rod 307 and the electric push rod 306 are connected by welding, and the weld is covered with an anti-rust coating. The welding connection ensures that the two are connected. The connection is firm and not easy to loosen; the anti-rust coating can effectively isolate air and moisture, reduce corrosion at the weld, extend the connection life of the movable rod 307 and the electric push rod 306, and ensure the stability of the transmission between the two. The spring 313 is made of elastic alloy material, which has excellent elasticity and fatigue strength. After multiple compressions and rebounds, it can still maintain stable elastic performance, ensuring that the movable block 309 can move smoothly when subjected to the force of the tank body. At the same time, when there is a slight change in the position of the tank body, the spring 313 can be reset in time, maintaining the accuracy of the pressure sensor 312 detection and ensuring the stable control of the tank body pressure by the limit mechanism 3.
[0027] In this embodiment, by setting up a dual-axis motor 302, threaded columns 303, and movable plates 304, adaptive limiting of multiple tank body specifications is achieved. When the dual-axis motor 302 starts, it drives the two sets of threaded columns 303 to rotate synchronously. Since the threaded columns 303 are threadedly connected to the threaded holes 305 of the movable plates 304 and the thread directions are opposite, the two sets of movable plates 304 will move closer or further apart in the horizontal direction, thereby driving the limiting plates 310 to adjust the spacing through the electric push rod 306 and the movable rod 307. This process does not require disassembly or replacement of the limiting structure, can quickly adapt to tank bodies of different diameters, reduce downtime, improve production efficiency, and solve the problem of poor adaptability of traditional fixed-specification limiting structures. By setting up a pressure sensor 312, a pressure rod 311, a spring 313, and a controller, accurate pressure monitoring and automatic adjustment are achieved. When the tank body contacts the limiting plate 310, the movable block 309 is compressed by the spring 313 and drives the pressure rod 311 to touch the pressure sensor 312, and the pressure signal is transmitted to the controller. When the pressure exceeds the preset threshold (too tight), the controller controls the dual-axis motor 302 to drive the movable plate 304 away; when the pressure is below the threshold (too loose), it controls the movable plate 304 to move closer. This process can prevent the can body from deforming due to excessive tightness or shaking due to excessive looseness in real time, improving processing accuracy and product qualification rate, and making up for the lack of pressure monitoring in traditional limiting structures. By setting an electric push rod 306, the limiting height can be flexibly adjusted; when the electric push rod 306 extends or retracts, it drives the movable rod 307 and the limiting plate 310 to rise and fall vertically, which can adjust the limiting position according to the height of the can body, ensuring that the limiting plate 310 makes precise contact with the middle of the can body or a specific height. This design enhances the mold's adaptability to can bodies of different heights and expands its application range.
[0028] The implementation principle of this application embodiment is as follows: When the can body needs to be processed, the flat blank first enters the rolling mechanism 2 above the workbench 1. The rolling mechanism 2 bends the flat blank into a cylindrical can body, and then the can body is placed at the limiting mechanism 3. By controlling the operation of the electric push rod 306, when the electric push rod 306 extends and retracts, it drives the movable rod 307 and the limiting plate 310 to rise and fall in the vertical direction. The limiting position can be adjusted according to the height of the can body to ensure that the limiting plate 310 is in precise contact with the middle of the can body or a specific height. According to the size of the can body, the controller with the external preset threshold starts the dual-axis motor 302. The output shaft of the dual-axis motor 302 drives the two sets of threaded columns 303 to rotate. Since the thread direction of the two sets of threaded columns 303 is opposite and is adapted to the threaded hole 305 on the movable plate 304, the two sets of movable plates 304 will move closer or further away from each other along the axial direction of the threaded column 303. At the same time, the slider 314 on the surface of the movable plate 304 slides in the groove 315 inside the outer shell 301 to ensure that the movable plate 304 moves smoothly. The movable plate 304 drives the electric push rod 306, the movable rod 307, and the limiting plate 310 to move synchronously, initially adjusting the relative position of the limiting plate 310 and the can body. When the can body contacts the limiting plate 310, the movable block 309 is forced to move into the groove 308, driving the pressure rod 311 to press the pressure sensor 312, while the spring 313 is compressed. The pressure sensor 312 transmits the detected pressure signal to the controller. If the pressure value does not reach the preset threshold, the controller controls the dual-axis motor 302 to continue adjusting the position of the movable plate 304 until the pressure value is within the preset range, completing the precise limiting of the can body. After the limiting is completed, the pressing process is carried out. During this process, if the pressure between the can body and the limiting plate 310 changes due to vibration or other reasons, the pressure sensor 312 will feed back the signal to the controller in real time. The controller will then control the dual-axis motor 302 to adjust the position of the limiting plate 310 in a timely manner, ensuring that the can body is always in a stable limiting state during the pressing process, thus guaranteeing the pressing quality.
Claims
1. A multi-specification adaptive can body rolling and pressing combination mold, comprising a worktable (1), wherein a rolling mechanism (2) for bending flat blanks into cylindrical can bodies and a limiting mechanism (3) for limiting the rolled can bodies are sequentially arranged above the worktable (1) along the can body processing path, and a pressing mechanism (4) is provided on the side of the limiting mechanism (3) away from the rolling mechanism (2), characterized in that: The limiting mechanism (3) includes a housing (301), which is fixedly connected to the upper surface of the workbench (1). A dual-axis motor (302) is fixedly connected inside the housing (301). Threaded columns (303) are fixedly connected to both ends of the output shaft of the dual-axis motor (302). Movable plates (304) are provided at the ends of the two sets of threaded columns (303) away from one end. Threaded holes (305) are opened at the near ends of the two sets of movable plates (304), and the threaded columns (303) are threadedly connected to the threaded holes (305). Electric push rods (306) are fixedly connected to the ends of the two sets of movable plates (304) away from the other end. Movable rods (307) are provided at the upper ends of the two sets of electric push rods (306). 307) Both of the near ends are provided with grooves (308) and movable blocks (309) are movably connected inside. Both sets of movable blocks (309) are fixedly connected to limit plates (310) near the near ends. Both sets of movable blocks (309) are fixedly connected to pressure rods (311) away from the far ends. A pressure sensor (312) is fixedly connected inside the groove (308). A spring (313) is sleeved on the surface of the pressure rod (311) and the pressure sensor (312). One end of the spring (313) is fixedly connected inside the groove (308), and the other end is fixedly connected to the end of the movable block (309) away from the limit plate (310). Both the dual-axis motor (302) and the pressure sensor (312) are electrically connected to an external controller with a preset threshold.
2. The multi-specification adaptive can body rolling and pressing combination mold according to claim 1, characterized in that: The movable plate (304) is fixedly connected to a slider (314), and the outer shell (301) has a groove (315) inside, and the slider (314) is movably connected inside the groove (315).
3. The multi-specification adaptive can body rolling and pressing combination mold according to claim 1, characterized in that: The two sets of threaded posts (303) have opposite thread directions, and the thread directions of the two sets of threaded holes (305) are adapted to the corresponding threaded posts (303).
4. The multi-specification adaptive can body rolling and pressing combination mold according to claim 1, characterized in that: The outer casing (301) is made of metal.
5. The multi-specification adaptive can body rolling and pressing combination mold according to claim 1, characterized in that: The connection between the electric push rod (306) and the movable plate (304) is provided with a reinforcing rib, and the reinforcing rib is fixedly connected to the outer wall of the electric push rod (306) and the surface of the movable plate (304) respectively.
6. The multi-specification adaptive can body rolling and pressing combination mold according to claim 1, characterized in that: The limiting plate (310) facing the tank body is made of wear-resistant material.
7. The multi-specification adaptive can body rolling and pressing combination mold according to claim 1, characterized in that: The movable rod (307) and the electric push rod (306) are connected by welding, and the surface of the weld is provided with an anti-rust coating.
8. The multi-specification adaptive can body rolling and pressing combination mold according to claim 1, characterized in that: The spring (313) is made of an elastic alloy material.