Automatic tearing device for welding seam of metal can

By designing an automatic weld seam tearing device for metal cans, and utilizing components such as a circular rotation mechanism, pneumatic pliers, and industrial cameras, the device achieves automated weld seam tearing, solving the problems of cumbersome and low safety in traditional processes, and improving the ease of operation and safety.

CN224058810UActive Publication Date: 2026-03-31SHENGXING GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-30
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Traditional metal can weld seam tearing processes are cumbersome and pose safety risks, especially since workers are prone to fatigue in repetitive tasks, increasing the probability of accidents.

Method used

Design an automatic tearing device for metal can welds, which adopts a circular rotating mechanism, pneumatic pliers, industrial camera, lifting device and gear and rack rotating mechanism to achieve automated weld tearing, and complete the operation through mechanical equipment.

Benefits of technology

It improves ease of operation and safety, eliminates the risk of worker injury, adapts to metal tanks of different sizes, and the entire process is completed in a closed mechanical environment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an automatic tearing device for a welding seam of a metal can. The automatic tearing device comprises a conveying line, a circle supporting rotating mechanism, an industrial camera, a pneumatic vice, a gear and rack rotating mechanism, a rack air cylinder and a lifting device. A metal can is conveyed to a processing area of the circle supporting rotating mechanism through the conveying line, the industrial camera captures the position of a welding seam in real time, the pneumatic vice clamps the welding seam under the control of the lifting device and carries out tearing operation, and the gear and rack rotating mechanism drives the pneumatic vice to rotate so as to complete the tearing action. The tray is used for collecting the torn weld strips, and the guide rod with the air cylinder pops the treated metal cans out of the conveying line. According to the utility model, the automatic operation of tearing the welding seam of the metal can is realized, the production efficiency and the safety are improved, and the manual participation and operation risks are reduced.
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Description

Technical Field

[0001] This utility model relates to the field of environmental protection machinery and equipment technology, specifically to an automatic tearing device for weld seams of metal cans. Background Technology

[0002] In traditional metal can weld tearing processes, operators typically need to manually clamp and tear the weld using pliers. This traditional method is not only cumbersome but also carries the risk of cuts from the metal can, resulting in a low safety factor. Especially in repetitive work environments, worker fatigue is common, further increasing the probability of accidents. Therefore, a device capable of automating weld tearing is needed to improve both ease of operation and safety. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an automatic tearing device for metal can weld seams to solve the aforementioned problems.

[0004] This utility model provides the following technical solution:

[0005] An automatic metal can weld seam tearing device includes a conveyor line for transporting metal cans to a processing area; a rotating support mechanism located at the end of the conveyor line for securing the metal cans and providing stable support during the tearing process; an industrial camera mounted above the rotating support mechanism for capturing the weld seam position in real time; a pneumatic vise located at the front end of the rotating support mechanism and fixed to a connecting block for clamping the weld seam strip and cutting the metal sheet of the can; a lifting device for controlling the up and down position of the pneumatic vise; and a gear and rack rotating mechanism fixed above the top plate of the lifting device, connected to the connecting block, and driving the pneumatic vise to rotate via the connecting block.

[0006] Furthermore, the gear output shaft of the gear and rack rotating mechanism is connected to the connecting block.

[0007] Furthermore, the pneumatic pliers are connected to a cylinder, which controls the loosening and extension of the pneumatic pliers.

[0008] Furthermore, the conveyor line is equipped with a conveyor belt, and the direction of the conveyor belt is controlled by the forward and reverse rotation of the conveyor belt motor.

[0009] Furthermore, the rear end of the circular rotation mechanism is connected to a circular rotation mechanism motor, and is driven by the circular rotation mechanism motor.

[0010] Furthermore, a tray and a tray cylinder are provided below the top plate of the lifting device, and the tray cylinder pushes the tray to extend and retract.

[0011] Furthermore, a guide rod with a cylinder is provided below the top plate of the lifting device.

[0012] This utility model has the following beneficial technical effects:

[0013] This invention, through the design of a circular rotation mechanism and pneumatic pliers, can be adjusted to metal cans of different specifications, making it highly adaptable. The entire processing is completed automatically by mechanical equipment without human intervention, and the operation is simple; just start the equipment. All operations are carried out in a closed mechanical environment, eliminating the risk of worker injury and significantly improving safety. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an automatic tearing device for weld seams of metal cans according to this utility model;

[0015] Figure 2 This is a utility model Figure 1 A magnified view of the circled area;

[0016] Figure 3 This is a diagram showing the positional connection between the gear and rack mechanism and the pneumatic pliers in an automatic tearing device for metal can welds according to this utility model.

[0017] Figure 4 This is a schematic diagram of the tray and the guide rod with cylinder of an automatic tearing device for weld seams of metal cans according to this utility model.

[0018] The attached figures are labeled as follows:

[0019] 1. Industrial camera; 2. Spreading and rotating mechanism motor; 3. Spreading and rotating mechanism; 4. Conveyor belt motor; 5. Pneumatic pliers; 6. Gear and rack rotating mechanism; 7. Rack and pinion cylinder; 8. Guide rod; 9. Pallet cylinder; 10. Pallet; 11. Conveyor line; 12. Lifting device; 13. Connecting block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example

[0022] An automatic tearing device for weld seams of metal cans includes a conveyor line 11, a circular rotating mechanism 3, an industrial camera 1, a pneumatic pliers 5, a gear and rack rotating mechanism 6, a rack cylinder 7, and a lifting device 12; the conveyor line 11 is equipped with a conveyor belt for transporting metal cans, and the transport direction of the conveyor belt is controlled by the forward and reverse rotation of the conveyor belt motor 4.

[0023] The circular rotation mechanism 3 is located at the end of the conveyor line 11 to fix the metal can and provide stable support during the tearing process. The rear end of the circular rotation mechanism 3 is connected to the circular rotation mechanism motor 2 and is driven by the circular rotation mechanism motor 2.

[0024] An industrial camera 1 is mounted above the circular rotation mechanism 3 to capture the weld position in real time, ensuring that the weld is in the correct tear position.

[0025] In this embodiment, the pneumatic pliers 5 are positioned at the front end of the rotating support mechanism 3 and fixed to the connecting block 13. They are used to clamp the weld strip and cut the sheet metal of the metal can. The pneumatic pliers 5 are controlled up and down by the lifting device 12 and their angular position by the gear and rack rotating mechanism 6. Specifically, a rack cylinder 7 and a gear and rack rotating mechanism 6 are provided above the top plate of the lifting device 12. The rack cylinder 7 provides power to the gear and rack rotating mechanism 6, driving the rack transmission. The rack meshes with the gear, causing the gear to rotate. This process converts the linear motion of the rack into the rotational motion of the gear through the extension and retraction of the rack cylinder 7. The gear output shaft of the gear and rack rotating mechanism 6 is connected to the connecting block 13. The gear and rack rotating mechanism 6 drives the pneumatic pliers 5 to rotate through the connecting block 13. The pneumatic vise 5 includes a cylinder, a groove, and scissor hands. The groove is used to guide and restrict the movement path of the mechanical parts to ensure the accuracy and stability of the action. In this embodiment, the groove can guide the movement of the scissor hands to ensure the accuracy of clamping and releasing actions, while limiting the range of motion of the scissor hands to prevent over-clamping or over-releasing. Therefore, the pneumatic vise 5 in this embodiment can be controlled by the cylinder to simultaneously control its clamping and extending / retracting (the pneumatic vise in this embodiment is a pneumatic scissor structure in the prior art, and its structure is not described in detail in the accompanying drawings).

[0026] In this embodiment, a tray 10 and a tray cylinder 9 are provided below the top plate of the lifting device 12 and on one side of the conveyor belt. The tray cylinder 9 pushes the tray 10 to extend and retract, which is used to collect the torn weld strips. In addition, a guide rod 8 with a cylinder is provided below the top plate of the lifting device 12 and on the other side of the conveyor belt, which is used to eject the processed metal cans from the conveyor line 11.

[0027] The working principle of this utility model is as follows: The conveyor belt on the conveyor line 11 is driven by the forward rotation of the conveyor belt motor 4 to gradually transport the metal can to the processing area of ​​the circular rotation mechanism 3. When the metal can enters the processing area, the conveyor belt stops, and the circular rotation mechanism 3 opens and fixes the position of the metal can. The position of the weld is captured in real time by the industrial camera 1, and the circular rotation mechanism 3 is driven by the circular rotation mechanism motor 2 to rotate so that the weld is directly above. At this time, the lifting device 12 descends, so that the weld is at the same level as the pneumatic vise 5. The pneumatic vise 5 extends its clamping arm through the cylinder, clamps the weld strip, and cuts the metal sheet of the metal can. The gear and rack rotation mechanism 6 drives the pneumatic vise 5 to rotate through the extension and retraction of the rack cylinder 7. At the same time, the lifting device 12 rises, so that the pneumatic vise 5 and the metal can form a certain angle, such as 45°, to complete the tearing action. Finally, the tray 10 is pushed out by the cylinder 9. After the weld strip is torn off, the pneumatic pliers 5 retract and release the weld strip, causing it to fall into the tray 10. In addition, the conveyor belt motor 4 is reversed, and the conveyor belt on the conveyor line 11 is reversed to move the processed metal can back to the guide rod 8 with the cylinder. The guide rod 8 with the cylinder is activated to push the metal can out of the conveyor line 11, completing the whole process.

[0028] The above-described embodiments merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An automatic can body seam tearer, characterized by comprising: The utility model relates to a kind of metal can production line, including Conveying line for conveying metal cans to processing area; Supporting circle rotating mechanism, arranged at the end of the conveying line, for fixing metal cans and providing stable support during the tearing process; Industrial camera, mounted above the supporting circle rotating mechanism, for capturing weld position in real time; Pneumatic vice, arranged at the front end of the supporting circle rotating mechanism and fixed on the connecting block, for clamping the weld strip and cutting the metal can shell; Lifting device for controlling the up-and-down position of the pneumatic vice; Gear and rack rotating mechanism, fixed above the top plate of the lifting device, connected with the connecting block and driving the pneumatic vice to rotate through the connecting block.

2. The apparatus according to claim 1, wherein The gear output shaft of the gear and rack rotating mechanism is connected with the connecting block.

3. The apparatus of claim 1 wherein: The pneumatic vice is connected with a gas cylinder, and the clamping and extension of the pneumatic vice are controlled by the gas cylinder.

4. The apparatus of claim 1 wherein: The conveying line is provided with a conveyor belt, and the direction of the conveyor belt is controlled by the forward and reverse rotation of the conveyor belt motor.

5. The apparatus of claim 1 wherein, The rear end of the supporting circle rotating mechanism is connected with a supporting circle rotating mechanism motor, and the supporting circle rotating mechanism motor drives the supporting circle rotating mechanism.

6. The apparatus of claim 1 wherein: A tray and a tray gas cylinder are arranged below the top plate of the lifting device, and the tray gas cylinder pushes the tray to extend and retract.

7. The apparatus of claim 1 wherein: A guide rod with a gas cylinder is arranged below the top plate of the lifting device.