A seaming device for metal can production

By designing a crimping device with a rotating table and drive components, continuous operation of the metal can crimping process was realized, solving the problem of low efficiency caused by frequent can handling by workers, improving work efficiency and enhancing the stability and service life of the device.

CN224372632UActive Publication Date: 2026-06-19HANGZHOU FANGYUAN CANNING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU FANGYUAN CANNING CO LTD
Filing Date
2025-05-14
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In the current metal can crimping process, workers need to frequently pick up and put down the cans, resulting in low work efficiency.

Method used

A curling device comprising a base, support frame, stamping mechanism, rotating table and drive assembly was designed. The worktable is driven to rotate 180 degrees by an electric cylinder to achieve continuous curling and reduce waiting time.

Benefits of technology

It improved the work efficiency of staff and enhanced the stability and service life of the equipment.

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Abstract

This application belongs to the field of metal can manufacturing technology and discloses a crimping device for metal can production. It includes a base, an L-shaped support frame fixedly mounted on the upper surface of the base, a stamping mechanism fixedly mounted on the upper surface of the support frame, a piston rod of the stamping mechanism passing through the support frame, and a crimping device for crimping the metal can fixedly mounted at the end of the piston rod. A rotating platform with an open top is fixedly mounted on the upper surface of the base, and a worktable is rotatably mounted inside the rotating platform. The upper surface of the worktable has symmetrically opened mounting slots for placing metal cans, and a driving assembly for driving the worktable to rotate is provided inside the rotating platform. This application improves the work efficiency of operators.
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Description

Technical Field

[0001] This utility model relates to the field of metal can manufacturing technology, and in particular to a crimping device for metal can manufacturing. Background Technology

[0002] Metal food containers can preserve food for a long time, retaining its flavor while being easy to carry. Furthermore, to prevent the edges of the metal containers from scratching users, a crimping device is used to smooth and round the edges.

[0003] When edge-rolling metal cans, the cans are typically fixed to a workbench. Then, a stamping machine drives an edge-rolling device to roll the edges of the cans fixed to the workbench. During this process, after each edge-rolling operation, the worker must remove the can and place a new one before proceeding to the next, leading to reduced work efficiency. Utility Model Content

[0004] To solve the above problems, this utility model provides a crimping device for metal can production.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a seam-rolling device for metal can production, comprising a base, a support frame with an L-shaped cross-section fixedly disposed on the upper surface of the base, a stamping mechanism fixedly disposed on the upper surface of the support frame, a piston rod of the stamping mechanism passing through the support frame, a seam-rolling device for seaming the metal can fixedly disposed at the end of the piston rod of the stamping mechanism, a rotating platform with an open top fixedly disposed on the upper surface of the base, a worktable rotatably disposed inside the rotating platform, mounting slots for placing metal cans symmetrically opened on the upper surface of the worktable, and a driving component for driving the worktable to rotate disposed inside the rotating platform.

[0006] By adopting the above technical solution, when workers need to edge-roll metal cans, they first place the can into the mounting slot. Then, the worker activates the stamping mechanism, which drives the edge-rolling device downwards, thus edge-rolling the metal can. After the edge-rolling is complete, the stamping mechanism automatically resets. At this point, the worker uses the drive assembly to rotate the worktable 180 degrees, aligning it with another mounting slot. The worker then restarts the stamping mechanism to edge-roll the metal can in the mounting slot. During this process, the worker can place the metal can into an unused mounting slot while the stamping mechanism is operating, eliminating waiting time and improving work efficiency.

[0007] Furthermore, the drive assembly includes an electric cylinder fixedly mounted on the inner bottom wall of the rotating table, a rotating block rotatably mounted on the end of the piston rod of the electric cylinder, a rotating rod fixedly mounted on the bottom surface of the worktable, a rocker arm rotatably mounted on the end of the rotating rod away from the worktable, and a connecting rod rotatably mounted on the end of the rocker arm away from the rotating rod. A sliding groove is provided through the side wall of the rotating block, and the connecting rod is slidably connected to the sliding groove.

[0008] Furthermore, a rotating seat is fixedly provided at the end of the piston rod of the electric cylinder, and the rotating block is rotatably connected to the rotating seat.

[0009] By adopting the above technical solution, when the operator needs to rotate the worktable, they need to activate the electric cylinder, which extends the piston rod of the electric cylinder. This causes the rotating seat to move under the action of the piston rod, which in turn causes the connecting rod to rotate under the action of the rotating seat (during this process, the rotating block and the connecting rod slide relative to each other). This causes the rocker arm to rotate under the action of the connecting rod, which in turn causes the rotating rod to rotate under the action of the rocker arm (during this process, the connecting rod, the rotating rod, and the rocker arm rotate relative to each other). This causes the worktable to rotate 180 degrees under the action of the rotating rod (the specific working principle can be referred to as the crank-rocker tangent mechanism). Subsequently, when the operator retracts the piston rod of the electric cylinder, they rotate it 180 degrees again, thus aligning the mounting slot with the edge-rolling equipment.

[0010] Furthermore, a limiting rod is fixedly installed on the inner bottom wall of the rotating platform. The limiting rod passes through the connecting rod and is rotatably connected to the connecting rod. Two blocking rings are sleeved on the outer wall of the limiting rod. Both blocking rings are fixed to the limiting rod. The side walls of the two blocking rings that are close to each other abut against the upper surface and bottom surface of the connecting rod, respectively.

[0011] By adopting the above technical solution, when the connecting rod rotates, the limiting rod limits its movement, thereby causing the connecting rod to rotate along the axis of the limiting rod, thus improving the stability of the device. Furthermore, the blocking ring limits the connecting rod, thereby reducing the probability of the connecting rod falling downwards under gravity, thus improving the stability of the device.

[0012] Furthermore, an annular groove is provided on the inner wall of the rotating table, and an annular block is rotatably arranged in the annular groove, the annular block being fixed to the worktable.

[0013] By adopting the above technical solution, when the worktable rotates, the ring block rotates synchronously with the worktable under the action of the worktable. During this process, the ring block limits the worktable, thereby reducing the probability of workers falling downwards and improving the stability of the device.

[0014] Furthermore, both ends of the rocker arm are fixedly provided with limit shafts, and the two limit shafts pass through the adjacent rocker arm and connecting rod and are rotatably connected to them.

[0015] Furthermore, a fixing nut is threaded onto the outer wall of the limiting shaft.

[0016] By adopting the above technical solution, the limiting shaft and the fixing nut reduce the probability of the rocker arm, connecting rod, and rotating rod separating from each other, thereby improving the stability of the device.

[0017] Furthermore, a rubber pad is fixedly installed on the inner bottom wall of the mounting groove, and a fixing rod is fixedly installed on the bottom surface of the edge-rolling device.

[0018] By adopting the above technical solution, when the edge-rolling equipment moves downward to edge the metal can, the bottom surface of the fixing rod abuts against the inner bottom wall of the metal can. During this process, the fixing rod reduces the probability of the metal can shaking during the edge-rolling process, thereby improving the stability of the device. The rubber pad reduces the probability of the fixing rod being damaged, thereby extending the service life of the device.

[0019] In summary, this utility model has the following beneficial effects:

[0020] 1. In this application, when a worker needs to edge-roll a metal can, the worker places the metal can into the mounting slot. Then, the worker starts the stamping mechanism, which drives the edge-rolling device downwards, thus edge-rolling the metal can. After the edge-rolling is completed, the stamping mechanism automatically resets. At this point, the worker needs to drive the worktable to rotate 180 degrees using the drive assembly, aligning another mounting slot with the edge-rolling device. The worker then restarts the stamping mechanism to edge-roll the metal can in the mounting slot. During this process, the worker can place the metal can into an unused mounting slot while the stamping mechanism is operating, eliminating waiting time and improving worker efficiency.

[0021] 2. In this application, when the operator needs to rotate the worktable, the operator needs to activate the electric cylinder, which extends the piston rod of the electric cylinder. This causes the rotating seat to move under the action of the piston rod, which in turn causes the connecting rod to rotate under the action of the rotating seat (during this process, the rotating block and the connecting rod slide relative to each other). This causes the rocker arm to rotate under the action of the connecting rod, which in turn causes the rotating rod to rotate under the action of the rocker arm (during this process, the connecting rod, the rotating rod, and the rocker arm rotate relative to each other). This causes the worktable to rotate 180 degrees under the action of the rotating rod (the specific working principle can be referred to the crank-rocker tangent mechanism). Subsequently, when the operator retracts the piston rod of the electric cylinder, the operator rotates it 180 degrees again, thus aligning the mounting groove with the edge-rolling equipment.

[0022] 3. In this application, when the connecting rod rotates, the limiting rod limits the connecting rod, thereby causing the connecting rod to rotate along the axis of the limiting rod, thus improving the stability of the device. Furthermore, the blocking ring limits the connecting rod, thereby reducing the probability of the connecting rod falling downwards under the influence of gravity, thus improving the stability of the device. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the rotating table and the worktable in an embodiment of this utility model;

[0025] Figure 3 This is a cross-sectional structural diagram of the rotating table and the worktable in an embodiment of this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the driving component in an embodiment of this utility model.

[0027] In the diagram: 1. Base; 11. Support frame; 12. Stamping mechanism; 13. Edge rolling equipment; 14. Rotary table; 15. Workbench; 16. Mounting slot; 2. Drive assembly; 21. Electric cylinder; 22. Rotating block; 23. Rotating rod; 24. Rocker arm; 25. Connecting rod; 26. Slide groove; 3. Rotating seat; 4. Limiting rod; 41. Blocking ring; 5. Annular groove; 51. Annular block; 6. Limiting shaft; 7. Fixing nut; 8. Rubber pad; 81. Fixing rod. Detailed Implementation

[0028] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0029] like Figure 1-4As shown in the illustration, this application discloses a seaming device for metal can production, including a base 1, a support frame 11, a stamping mechanism 12, a seaming device 13, a rotating table 14, a worktable 15, a drive assembly 2, a rotating seat 3, a limiting rod 4, a blocking ring 41, and an annular block 51. The base 1 is a rectangular plate structure, and the support frame 11 has an L-shaped cross-section and is fixedly mounted on the upper surface of the base 1. The stamping mechanism 12 is fixedly mounted on the upper surface of the support frame 11, with its piston rod having a vertical axis and passing through the support frame 11. The seaming device 13 is fixedly mounted on the end of the piston rod of the stamping mechanism 12 and is used to seam the metal can. The rotating table 14 is a cylindrical structure with an open top and a vertical axis, and is fixedly mounted on the upper surface of the base 1. The worktable 15 is a cylindrical structure, and its axis coincides with the axis of the rotating table 14. The worktable 15 is rotatably mounted inside the rotating table 14. The upper surface of the worktable 15 is symmetrically provided with mounting slots 16 for placing metal cans.

[0030] When workers need to edge-roll a metal can, they place the can into the mounting slot 16. Then, the worker activates the stamping mechanism 12, which drives the edge-rolling device 13 downwards, thus edge-rolling the metal can. After edge-rolling is complete, the stamping mechanism 12 automatically resets. At this point, the worker uses the drive assembly 2 to rotate the worktable 15, causing it to rotate 180 degrees so that the other mounting slot 16 is aligned with the edge-rolling device 13. The worker then restarts the stamping mechanism 12 to edge-roll the metal can in the mounting slot 16. During this process, the worker can place the metal can into an unused mounting slot 16 while the stamping mechanism 12 is operating, eliminating waiting time and improving work efficiency.

[0031] The drive assembly 2 is disposed inside the rotary table 14 and is used to drive the worktable 15 to rotate. The drive assembly 2 includes an electric cylinder 21, a rotating block 22, a rotating rod 23, a rocker arm 24, and a connecting rod 25. The electric cylinder 21 is fixedly disposed on the inner bottom wall of the rotary table 14, and its piston rod axis is horizontal. The rotating block 22 is rotatably disposed at the end of the piston rod of the electric cylinder 21, and a sliding groove 26 is provided through the side wall of the rotating block 22. The rotating rod 23 is fixedly disposed on the bottom surface of the worktable 15, the rocker arm 24 is rotatably disposed at the end of the rotating rod 23 away from the worktable 15, and the connecting rod 25 is rotatably disposed at the end of the rocker arm 24 away from the rotating rod 23. The connecting rod 25 is slidably connected to the sliding groove 26.

[0032] The rotating seat 3 is fixedly mounted on the end of the piston rod of the electric cylinder 21, and the rotating block 22 is rotatably connected to the rotating seat 3.

[0033] When the operator needs to rotate the worktable 15, they activate the electric cylinder 21, causing its piston rod to extend. This moves the rotating seat 3 under the action of the piston rod, which in turn causes the connecting rod 25 to rotate under the action of the rotating seat 3 (during this process, the rotating block 22 and the connecting rod 25 slide relative to each other). This causes the rocker arm 24 to rotate under the action of the connecting rod 25, which in turn causes the rotating rod 23 to rotate under the action of the rocker arm 24 (during this process, the connecting rod 25 and the rotating rod 23 rotate relative to the rocker arm 24). This causes the worktable 15 to rotate 180 degrees under the action of the rotating rod 23 (the specific working principle can be found in the crank-rocker arm 24 tangential mechanism). Subsequently, when the operator retracts the piston rod of the electric cylinder 21, they rotate it 180 degrees again, aligning the mounting groove 16 with the edge-rolling device 13.

[0034] The limiting rod 4 is a cylindrical rod with a vertical axis. It is fixedly mounted on the inner bottom wall of the rotating platform 14 and passes through the connecting rod 25, where it is rotatably connected. Two blocking rings 41 are provided and fitted onto the outer wall of the limiting rod 4, with their axes coinciding with the axis of the limiting rod 4. Both blocking rings 41 are fixed to the limiting rod 4, and their adjacent sidewalls abut against the upper and bottom surfaces of the connecting rod 25, respectively.

[0035] When the connecting rod 25 rotates, the limiting rod 4 limits the connecting rod 25, thereby causing the connecting rod 25 to rotate along the axis of the limiting rod 4, thus improving the stability of the device. In addition, the blocking ring 41 limits the connecting rod 25, thereby reducing the probability of the connecting rod 25 falling downwards under the action of gravity, thus improving the stability of the device.

[0036] An annular groove 5 is provided on the inner wall of the rotating table 14. An annular block 51 is rotatably disposed in the annular groove 5, and its axis coincides with the axis of the worktable 15. The annular block 51 and the worktable 15 are fixed to each other.

[0037] When the worktable 15 rotates, the annular block 51 rotates synchronously with the worktable 15 under the action of the worktable 15. During this process, the annular block 51 limits the worktable 15, thereby reducing the probability of workers falling downwards and improving the stability of the device.

[0038] To improve the stability of the device, limit shafts 6 are fixedly installed at both ends of the rocker arm 24. The two limit shafts 6 pass through the adjacent rocker arm 24 and connecting rod 25 and are rotatably connected to them. A fixing nut 7 is threaded onto the outer wall of the limit shaft 6. The limit shafts 6 and the fixing nuts 7 reduce the probability of the rocker arm 24 separating from the connecting rod 25 and the rotating rod 23, thereby improving the stability of the device.

[0039] To extend the service life of the device, a rubber pad 8 is fixedly installed on the inner bottom wall of the mounting groove 16, and a fixing rod 81 is fixedly installed on the bottom surface of the edge-rolling device 13. When the edge-rolling device 13 moves downward to edge the metal can, the bottom surface of the fixing rod 81 abuts against the inner bottom wall of the metal can. During this process, the fixing rod 81 reduces the probability of the metal can shaking during the edge-rolling process, thereby improving the stability of the device. The rubber pad 8 reduces the probability of the fixing rod 81 being damaged, thereby extending the service life of the device.

[0040] The operating principle of the edge-rolling device for metal can production in this embodiment is as follows: When a worker needs to edge-roll a metal can, the worker places the metal can into the mounting slot 16. Then, the worker activates the stamping mechanism 12, which drives the edge-rolling device 13 downwards, thereby edge-rolling the metal can. After the edge-rolling is completed, the stamping mechanism 12 automatically resets. At this time, the worker drives the worktable 15 to rotate via the drive assembly 2, causing the worktable 15 to rotate 180 degrees under the action of the drive assembly 2, so that another mounting slot 16 is aligned with the edge-rolling device 13. The worker then activates the stamping mechanism 12 again to edge-roll the metal can in the mounting slot 16. During this process, the worker can place the metal can into an unused mounting slot 16 while the stamping mechanism 12 is operating, eliminating waiting time and improving work efficiency.

[0041] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A seaming device for metal can production comprising a base (1) characterised in that: The upper surface of the base (1) is fixedly provided with a support frame (11) with an L-shaped cross section. The upper surface of the support frame (11) is fixedly provided with a stamping mechanism (12). The piston rod of the stamping mechanism (12) passes through the support frame (11). The end of the piston rod of the stamping mechanism (12) is fixedly provided with a crimping device (13) for crimping the metal can. The upper surface of the base (1) is fixedly provided with a rotating platform (14) with an open top. A worktable (15) is rotatably provided inside the rotating platform (14). The upper surface of the worktable (15) is symmetrically provided with mounting slots (16) for placing metal cans. A drive assembly (2) for driving the worktable (15) to rotate is provided inside the rotating platform (14).

2. The edge-rolling device for metal can production according to claim 1, characterized in that: The drive assembly (2) includes an electric cylinder (21) fixedly mounted on the inner bottom wall of the rotating table (14), a rotating block (22) rotatably mounted on the piston rod end of the electric cylinder (21), a rotating rod (23) fixedly mounted on the bottom surface of the worktable (15), a rocker arm (24) rotatably mounted on the end of the rotating rod (23) away from the worktable (15), and a connecting rod (25) rotatably mounted on the end of the rocker arm (24) away from the rotating rod (23). A sliding groove (26) is provided through the side wall of the rotating block (22), and the connecting rod (25) is slidably connected to the sliding groove (26).

3. The edge-rolling device for metal can production according to claim 2, characterized in that: The piston rod end of the electric cylinder (21) is fixedly provided with a rotating seat (3), and the rotating block (22) is rotatably connected to the rotating seat (3).

4. The edge-rolling device for metal can production according to claim 2, characterized in that: A limiting rod (4) is fixedly installed on the inner bottom wall of the rotating platform (14). The limiting rod (4) passes through the connecting rod (25) and is rotatably connected to the connecting rod (25). Two blocking rings (41) are sleeved on the outer wall of the limiting rod (4). Both blocking rings (41) are fixed to the limiting rod (4). The side walls of the two blocking rings (41) that are close to each other abut against the upper surface and the bottom surface of the connecting rod (25), respectively.

5. A seaming device for metal can production according to claim 1, characterized in that: The inner wall of the rotating table (14) is provided with an annular groove (5), and an annular block (51) is rotatably arranged in the annular groove (5). The annular block (51) is fixed to the worktable (15).

6. A seaming device for metal can production according to claim 2, characterized in that: Both ends of the rocker arm (24) are fixedly provided with limit shafts (6), and the two limit shafts (6) pass through the adjacent rocker arm (24) and the connecting rod (25) and are rotatably connected to them.

7. A crimping device for metal can production according to claim 6, characterized in that: A fixing nut (7) is threaded onto the outer wall of the limiting shaft (6).

8. A seaming device for metal can production according to claim 1, characterized in that: A rubber pad (8) is fixedly installed on the inner bottom wall of the mounting groove (16), and a fixing rod (81) is fixedly installed on the bottom surface of the edge rolling device (13).