Automatic steel cylinder output mechanism of steel cylinder end socket butt joint ring welding machine

By designing an automated cylinder end cap butt welding machine, which uses a conveyor belt and a three-jaw chuck to clamp the upper and lower end caps, the machine achieves automatic splicing and welding of the end caps. This solves the problems of high risks and damage to the cylinder body caused by manual operation, and improves production safety and welding efficiency.

CN224254530UActive Publication Date: 2026-05-19青岛益鼎立容器有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
青岛益鼎立容器有限公司
Filing Date
2025-06-17
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing cylinder end cap butt welding equipment has problems such as high risk of manual operation, high temperature after welding which may injure workers, and high risk of equipment damage to the cylinder body.

Method used

Design a steel cylinder end cap butt ring welding machine, which uses first and second conveyor belts in conjunction with a three-jaw chuck to clamp the upper and lower end caps, realizes the splicing and welding of end caps through an automated production line, uses a welding machine for automated welding, and realizes automatic unloading through a robotic arm to avoid manual operation.

Benefits of technology

It improves the safety of cylinder production, reduces the risks of manual operation, avoids damage to the cylinder body, and realizes the automation and continuity of the welding process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of liquefied gas bottle production, and particularly relates to an automatic steel bottle output mechanism of a steel bottle end socket butt joint ring welding machine, which comprises a rack, a welding machine is mounted on the rack, a first conveying belt and a second conveying belt are arranged below the welding machine, an upper end socket feeding seat and an upper end socket discharging seat are arranged on the first conveying belt, and a lower end socket feeding seat and a lower end socket discharging seat are arranged on the second conveying belt. The first conveying belt is provided with a lower end socket feeding base, the second conveying belt is provided with a lower end socket feeding base, clamping mechanisms used for clamping an upper end socket and a lower end socket are arranged on the two sides of the first conveying belt and the two sides of the second conveying belt respectively, each clamping mechanism comprises a three-jaw chuck, and the three-jaw chucks on the two sides clamp the upper end socket and the lower end socket respectively. The upper end socket and the lower end socket are spliced together through movement, the upper end socket and the lower end socket which are spliced together are welded through a welding machine, manual discharging is not needed, and safety of steel cylinder production is improved.
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Description

Technical Field

[0001] This utility model relates to the field of liquefied gas cylinder technology, specifically to an automatic cylinder output mechanism for a cylinder end cap butt ring welding machine. Background Technology

[0002] A steel cylinder, or liquefied petroleum gas (LPG) cylinder, refers to a storage tank used to store LPG. The production process of a steel cylinder involves a complex process, including: stretching to manufacture the upper and lower end caps; welding the upper and lower end caps together to form the cylinder body; tempering the cylinder body; conducting gas tightness testing; shot blasting to remove rust; spraying a coating onto the surface; and high-temperature curing.

[0003] In existing technology, the equipment for circumferential welding of two end caps to form a bottle body is relatively simple. During operation, manual feeding and alignment of the two end caps are required first, followed by circumferential welding by the equipment. After the welding is completed, the bottle is manually lowered. In addition, some equipment on the market uses the vertical side of an L-shaped baffle to push the drive arm to swing, thereby causing the two support arms to swing upward. The two support arms contact the lower ends of the bottle that is placed on the cylinder support frame. As the swing angle of the support arms increases, the forward thrust applied to the bottle body increases. However, during use, the rebound force generated between the bottle body and the workpiece when it falls can cause damage to the bottle body and increase the risk of falling. Furthermore, the bottle body has a certain temperature after welding, and improper operation can easily cause injury to workers. Utility Model Content

[0004] In order to overcome the above-mentioned defects in the prior art, this utility model provides an automatic cylinder output mechanism for a cylinder head butt welding machine.

[0005] An automatic cylinder output mechanism for a cylinder end cap butt welding machine includes a frame on which a welding machine is mounted. Below the welding machine are a first conveyor belt and a second conveyor belt. The first conveyor belt has an upper end cap loading seat and an unloading seat, and the second conveyor belt has a lower end cap loading seat. Clamping mechanisms for holding the upper and lower end caps are respectively provided on both sides of the first and second conveyor belts. Each clamping mechanism includes a three-jaw chuck. The three-jaw chucks on both sides clamp the upper and lower end caps respectively, and by moving them, the upper and lower end caps are spliced ​​together. The welding machine then welds the spliced ​​upper and lower end caps together.

[0006] Furthermore, the upper end cap loading seat, the lower end cap loading seat, and the lower end cap loading seat are provided with placement grooves that are adapted to the outer walls of the upper end cap and the lower end cap.

[0007] Furthermore, the three-jaw chuck is rotatably mounted on the fixed housing. The three-jaw chuck is connected to the drive motor through a transmission mechanism. The three-jaw chuck is provided with an external gear ring, which meshes with a transmission gear. The transmission gear is connected to the output end of the rotary motor, and the rotary motor is fixedly mounted on the fixed housing.

[0008] Furthermore, the fixed shell is slidably connected to the column, and the column is provided with a lifting screw, the top of which is connected to a lifting motor installed on the column.

[0009] Furthermore, the bottoms of the two columns are slidably connected to the base plate, the base plate is provided with a movable screw, the movable screw is engaged with the bottom of the column, and the movable screw is connected to a movable motor installed on the base plate.

[0010] Furthermore, the top of the frame is provided with a transparent protective cover, and the protective cover is provided with an inspection door.

[0011] Furthermore, the first conveyor belt and the second conveyor belt have the same conveying direction, and the unloading seat is located upstream of the upper end cap loading seat.

[0012] Furthermore, blocking blocks are provided on the opposite surfaces of the upper end cap feeding seat and the lower end cap unloading seat.

[0013] Due to the adoption of the above technical solutions, the beneficial technical effects of this utility model are as follows: In this utility model, the first conveyor belt and the second conveyor belt move the upper and lower end caps to a designated position, and the upper and lower end caps are respectively clamped by three-jaw chucks. Then, the two three-jaw chucks move upward, and after reaching a designated height, the two three-jaw chucks move towards the middle, so that the upper and lower end caps are spliced ​​together. The welding head of the welding machine moves downward to weld the upper and lower end caps. At the same time as the upper and lower end caps are welded, the first conveyor belt and the second conveyor belt move in opposite directions, so that the upper end cap... The upper and lower end cap feeding seats move to the feeding point for easy feeding by workers. The unloading seat is located below the welding machine. After the upper and lower end caps are welded, the three-jaw chuck descends and places the welded product on the unloading seat. Then, the first and second conveyor belts move in the forward direction, moving the unloading seat to the unloading point. The robotic arm then unloads the new upper and lower end caps, moving them below the welding machine for new welding work. This design eliminates the need for manual unloading, improving the safety of cylinder production. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the automatic cylinder output mechanism of a cylinder end cap butt welding machine according to the present invention;

[0015] Figure 2This is a front view of the automatic cylinder output mechanism of a cylinder end cap butt ring welding machine according to the present invention;

[0016] Figure 3 This is a partial structural schematic diagram of the automatic cylinder output mechanism of a cylinder end cap butt welding machine according to the present invention;

[0017] Figure 4 This is a schematic diagram of the structure of the first conveyor belt and the second conveyor belt in this utility model;

[0018] Figure 5 This is a schematic diagram of the upper end cap feeding seat in this utility model;

[0019] Figure 6 This is a schematic diagram of the installation structure of the three-jaw chuck in this utility model.

[0020] In the diagram: 1. Frame; 2. Welding machine; 3. First conveyor belt; 4. Second conveyor belt; 5. Upper end cap loading seat; 6. Unloading seat; 7. Lower end cap loading seat; 8. Three-jaw chuck; 9. Fixed shell; 10. Drive motor; 11. External gear ring; 12. Transmission gear; 13. Rotary motor; 14. Column; 15. Lifting screw; 16. Lifting motor; 17. Base plate; 18. Moving screw; 19. Moving motor; 20. Protective cover; 21. Inspection door; 22. Limit block; 23. Limit groove. Detailed Implementation

[0021] To more clearly illustrate the technical solution of this utility model, the following description is made in conjunction with the accompanying drawings. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings and embodiments without creative effort, and all of them fall within the protection scope of this utility model.

[0022] according to Figure 1-6 As shown, an automatic cylinder output mechanism for a cylinder end cap butt welding machine includes a frame 1, on which a welding machine 2 is mounted. Below the welding machine 2, there is a first conveyor belt 3 and a second conveyor belt 4. The first conveyor belt 3 is provided with an upper end cap loading seat 5 and an unloading seat 6, and the second conveyor belt 4 is provided with a lower end cap loading seat 7. On both sides of the first conveyor belt 3 and the second conveyor belt 4, there are clamping mechanisms for clamping the upper end cap and the lower end cap, respectively. The clamping mechanism includes a three-jaw chuck 8. The three-jaw chuck 8 on both sides clamps the upper end cap and the lower end cap, and moves them to splice the upper end cap and the lower end cap together. The welding machine 2 then welds the spliced ​​upper end cap and the lower end cap together.

[0023] In the aforementioned specific technical solution, the worker first places the upper end cap on the upper end cap placement seat and the lower end cap on the lower end cap placement seat. The first conveyor belt 3 and the second conveyor belt 4 move the upper and lower end caps to designated positions. The upper and lower end caps are then clamped by the three-jaw chucks 8. The two three-jaw chucks 8 then move upwards to a designated height, and then move towards the center, joining the upper and lower end caps together. The welding head of the welding machine 2 moves downwards to weld the upper and lower end caps. Simultaneously with the welding of the upper and lower end caps, the first conveyor belt 3 and the second conveyor belt 4 move in opposite directions. The upper and lower end caps are moved to the loading point, facilitating loading by workers. The unloading seat 6 is located below the welding machine 2. After the upper and lower end caps are welded, the three-jaw chuck 8 descends and places the welded product on the unloading seat 6. Then, the first conveyor belt 3 and the second conveyor belt 4 move in the positive direction, moving the unloading seat 6 to the unloading point. The unloading is then achieved by the robotic arm. The upper and lower end caps are moved to the bottom of the welding machine 2 to perform new welding work. This design eliminates the need for manual unloading, improving the safety of cylinder production.

[0024] It is worth noting that welding machine 2 is existing technology, and its specific structure will not be described in detail here.

[0025] Preferably, when placing the welded product on the unloading seat 6, the product can be positioned directly above the unloading seat 6 by laterally moving the three-jaw chuck 8 before placement.

[0026] The upper end cap feeding seat 5, the lower end cap feeding seat 6, and the lower end cap feeding seat 7 are provided with placement grooves that are adapted to the outer walls of the upper and lower end caps. The upper and lower end caps are positioned by the placement grooves, so that the central axes of the upper and lower end caps that are spliced ​​together coincide.

[0027] The three-jaw chuck 8 is rotatably mounted on the fixed housing 9. The three-jaw chuck 8 is connected to the drive motor 10 through a transmission mechanism. The three-jaw chuck 8 is provided with an external gear ring 11, which meshes with the transmission gear 12. The transmission gear 12 is connected to the output end of the rotary motor 13, which is fixedly mounted on the fixed housing 9.

[0028] In the above specific technical solution, the transmission mechanism can be two meshing gears or a sprocket and chain mechanism. Through the drive motor 10, the jaws on the three-jaw chuck 8 can move simultaneously to the center and to the edge. The three-jaw chuck 8 moves simultaneously to the edge and contacts the annular handle on the upper end cap and the annular base on the lower end cap, thereby clamping the upper and lower end caps. It is worth noting that the transmission mechanism is existing technology and will not be described in detail here.

[0029] Preferably, the rotation of the three-jaw chuck 8 is achieved through the cooperation of the external gear ring 11 and the transmission gear 12, thereby realizing the circumferential welding of the upper and lower end caps.

[0030] The fixed shell 9 is slidably connected to the column 14. The column 14 is provided with a lifting screw 15. The top of the lifting screw 15 is connected to the lifting motor 16 installed on the column 14. Through the cooperation of the lifting screw 15 and the lifting motor 16, the lifting of the upper end cap and the lower end cap is realized.

[0031] The bottoms of the two columns 14 are slidably connected to the base plate 17. The base plate 17 is provided with a movable screw 18, which is connected to the bottom of the column 14. The movable screw 18 is connected to a movable motor 19 installed on the base plate 17. The two columns 14 move horizontally to splice the upper end cap and the lower end cap together.

[0032] The top of the frame 1 is provided with a transparent protective cover 20, and the protective cover 20 is provided with an inspection door 21. The protective cover 20 improves the safety of welding. The protective cover 20 is made of transparent material, which makes it easy for staff to observe the welding process.

[0033] The first conveyor belt 3 and the second conveyor belt 4 have the same conveying direction, and the unloading seat 6 is located upstream of the upper end cap loading seat 5, which is beneficial to achieving welding continuity.

[0034] The upper end cap feeding seat 5 and the lower end cap unloading seat 6 are provided with blocking blocks on their opposite surfaces. During feeding, the ends of the upper and lower end caps are brought into contact with the limiting block 22, thereby limiting the upper and lower end caps. In addition, when the upper and lower end caps are clamped by the three-jaw chuck 8, the umbrella-shaped chuck can first move towards the middle, thereby pushing the splicing ends of the upper and lower end caps into contact with the limiting block 22. Then, the jaws of the three-jaw chuck 8 move towards the edge to clamp the upper and lower end caps. Furthermore, the positioning by the limiting groove 23 facilitates the accurate splicing of the upper and lower end caps.

[0035] The above embodiments are merely exemplary embodiments of the present utility model and are not intended to limit the present utility model. The scope of protection of the present utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present utility model within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present utility model.

Claims

1. An automatic cylinder output mechanism for a cylinder end butt welding machine, comprising a frame (1), characterized in that, A welding machine (2) is installed on the frame (1). A first conveyor belt (3) and a second conveyor belt (4) are provided below the welding machine (2). An upper end cap loading seat (5) and an unloading seat (6) are provided on the first conveyor belt (3). A lower end cap loading seat (7) is provided on the second conveyor belt (4). Clamping mechanisms for clamping the upper end cap and the lower end cap are provided on both sides of the first conveyor belt (3) and the second conveyor belt (4). The clamping mechanism includes a three-jaw chuck (8). The three-jaw chucks (8) on both sides clamp the upper end cap and the lower end cap respectively. The upper end cap and the lower end cap are spliced ​​together by moving. The welding machine (2) welds the spliced ​​upper end cap and the lower end cap together.

2. The automatic cylinder output mechanism of the cylinder end cap butt welding machine according to claim 1, characterized in that, The upper end cap feeding seat (5), the lower end cap feeding seat (6), and the lower end cap feeding seat (7) are provided with placement grooves that are adapted to the outer walls of the upper end cap and the lower end cap.

3. The automatic cylinder output mechanism of the cylinder end cap butt welding machine according to claim 1, characterized in that, The three-jaw chuck (8) is rotatably mounted on the fixed shell (9). The three-jaw chuck (8) is connected to the drive motor (10) through a transmission mechanism. The three-jaw chuck (8) is provided with an external gear ring (11). The external gear ring (11) meshes with the transmission gear (12). The transmission gear (12) is connected to the output end of the rotary motor (13). The rotary motor (13) is fixedly mounted on the fixed shell (9).

4. The automatic cylinder output mechanism of the cylinder end cap butt welding machine according to claim 3, characterized in that, The fixed shell (9) is slidably connected to the column (14), and the column (14) is provided with a lifting screw (15). The top of the lifting screw (15) is connected to a lifting motor (16) installed on the column (14).

5. The automatic cylinder output mechanism of a cylinder end cap butt welding machine according to claim 4, characterized in that, The bottoms of the two columns (14) are slidably connected to the base plate (17). The base plate (17) is provided with a movable screw (18). The movable screw (18) is connected to the bottom of the column (14). The movable screw (18) is connected to a movable motor (19) installed on the base plate (17).

6. The automatic cylinder output mechanism of a cylinder end cap butt welding machine according to claim 5, characterized in that, The top of the frame (1) is provided with a transparent protective cover (20), and the protective cover (20) is provided with an inspection door (21).

7. The automatic cylinder output mechanism of the cylinder end cap butt welding machine according to claim 1, characterized in that, The first conveyor belt (3) and the second conveyor belt (4) have the same conveying direction, and the unloading seat (6) is located upstream of the upper end cap loading seat (5).

8. The automatic cylinder output mechanism of the cylinder end cap butt welding machine according to claim 7, characterized in that, The upper end cap feeding seat (5) and the lower end cap unloading seat (6) are provided with blocking blocks on their opposite surfaces.