A welding device for vacuum cup production

Abstract

The utility model provides a kind of welding device for vacuum cup production, including operation platform, first electric push rod and two clamping seats, transmission cavity is opened in operation platform, two first drive shafts are rotationally arranged in transmission cavity, one conveyor belt is sleeved on the outer cylindrical surface of two first drive shafts, first electric push rod is fixedly arranged in transmission cavity, first electric push rod is arranged in one end of conveyor belt, first electric push rod is fixedly connected with lifting platform, first slot is opened in lifting platform. Inert gas is filled into high-temperature-resistant sealing ring by inflating device towards first inflation pipeline to make it expand, so as to tightly fix cup and cup shell and seal seam area, at the same time, inert gas is filled into the sealing space between two sealing rings by second inflation pipeline, so that the welding area is completely surrounded by inert gas environment, so as to effectively isolate oxygen, prevent metal oxidation during welding process, significantly improve the purpose of weld quality and air tightness.

Description

Technical Field

[0001] This utility model relates to the technical field of thermos cup processing equipment, specifically a welding device for thermos cup production. Background Technology

[0002] In the production of thermos flasks, the circumferential welding between the outer shell and the inner liner is a crucial process that determines the product's airtightness and durability. Traditional welding processes have the following significant drawbacks:

[0003] Low positioning accuracy and insufficient efficiency:

[0004] The method relies on manual placement of the outer shell and inner liner, with the seams manually aligned using mechanical clamps. This approach not only suffers from poor positioning consistency (easily leading to welding misalignment), but also consumes considerable time for clamping, making it difficult to match the pace of automated production lines and thus becoming a bottleneck for capacity improvement.

[0005] Frequent welding oxidation defects:

[0006] Conventional welding lacks effective gas protection measures, allowing oxygen from the air to enter the high-temperature molten pool, causing oxidation of the weld metal and resulting in defects such as porosity and slag inclusions. This not only reduces sealing performance (leading to potential leaks) but also affects the appearance quality, requiring additional rework or scrapping, thus increasing production costs.

[0007] Although the industry has tried to introduce inert gas shielded welding (such as TIG welding), existing equipment is difficult to adapt to the narrow annular weld structure of thermos cups. Fixed gas covers cannot completely seal irregular curved surfaces, resulting in serious leakage of protective gas. Dynamic sealing technology is expensive and difficult to maintain a stable gas environment during high-speed welding.

[0008] Therefore, there is an urgent need for a welding device that integrates high-precision automatic positioning and dynamic inert gas sealing protection to overcome the dual bottlenecks of efficiency and quality. Utility Model Content

[0009] (a) Technical problems to be solved

[0010] To address the shortcomings of existing technologies, this utility model provides a welding device for the production of thermos cups, which solves the problems mentioned in the background art.

[0011] (II) Technical Solution

[0012] To achieve the above objectives, this utility model provides the following technical solution: a welding device for producing thermos cups, characterized in that it includes an operating table, a first electric push rod, and two clamping seats. The operating table has a transmission cavity, and two first driving shafts are rotatably arranged within the transmission cavity. A conveyor belt is fitted onto the outer circumference of the two first driving shafts. The first electric push rod is fixedly disposed in the transmission cavity and at one end of the conveyor belt. A lifting platform is fixedly connected to the first electric push rod, and a first slot is provided on the lifting platform. A first opening is provided on the side wall of the transmission cavity away from the first electric push rod. The two clamping seats are slidably disposed on both sides of the first opening, and a driving assembly is fixedly connected to each clamping seat.

[0013] Preferably, a third slot is formed on the inner circular surface of the clamping seat, and a second slot is formed on both sides of the third slot. A sealing ring is embedded in the second slot, and a first inflation pipe is fixedly connected to the sealing ring. A welding end is slidably connected in the third slot, and a traveling component is fixedly connected to the welding end. A second inflation pipe is also provided on the clamping seat, and the second inflation pipe is used to fill the clamping seat with inert gas.

[0014] Preferably, the driving assembly includes a driving base and a second electric push rod. The driving base is fixedly connected to the operating table. One end of the second electric push rod is fixedly connected to the driving base, and the other end of the second electric push rod is fixedly connected to the outer circular surface of the clamping seat. An inflation device is slidably sleeved on the second electric push rod, and the inflation device is fixedly connected to the first inflation pipe and the second inflation pipe.

[0015] Preferably, the diameter of the first opening is equal to the inner diameter of the clamping seat.

[0016] Preferably, the diameter of the first slot in the radial direction of the first electric push rod is smaller than the diameter of the clamping seat.

[0017] Preferably, both the first inflation pipe and the second inflation pipe pass through the clamping seat, and the second inflation pipe is disposed between the two sealing rings.

[0018] (III) Beneficial Effects

[0019] This utility model provides a welding device for the production of thermos cups. It has the following beneficial effects:

[0020] 1. Inert gas is injected into the high-temperature resistant sealing ring through the first inflation pipe via an inflation device, causing it to expand and thus tightly fix the cup liner and the cup shell and seal the joint area. At the same time, inert gas is injected into the sealing space between the two sealing rings through the second inflation pipe, so that the welding area is completely surrounded by an inert gas environment, thereby effectively isolating oxygen, preventing metal oxidation during the welding process, and significantly improving the weld quality and airtightness.

[0021] 2. The cup shell is transported to the first slot of the lifting platform by the conveyor belt. The first electric push rod pushes the lifting platform to accurately push the cup shell into the third slot of the clamping seat. At the same time, the second electric push rod drives the clamping seat to clamp and fix the cup shell and the cup liner, so that the welded joint of the outer shell and the inner liner of the thermos cup can be automatically and accurately aligned and fixed at the welding station, thereby achieving the purpose of efficient and automated clamping and positioning. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0023] Figure 2 This is a top view of the structure of this utility model;

[0024] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure of AA;

[0025] Figure 4 for Figure 2 A schematic diagram of the cross-sectional structure of BB.

[0026] In the figure: 11. Operating table; 12. Transmission chamber; 13. First drive shaft; 14. Conveyor belt; 15. First electric push rod; 16. Lifting platform; 17. First slot; 18. First opening; 20. Clamping seat; 21. Second slot; 22. Sealing ring; 23. First inflation pipe; 24. Third slot; 25. Welding end; 26. Traveling component; 27. Second inflation pipe; 28. Inflation device; 30. Drive base; 31. Second electric push rod. Detailed Implementation

[0027] This utility model embodiment provides a welding device for the production of thermos cups, such as... Figure 1-4 As shown, it includes an operating table 11, a transmission cavity 12, a first drive shaft 13, a conveyor belt 14, a first electric push rod 15, a lifting platform 16, a first slot 17, a first opening 18, a clamping seat 20, a second slot 21, a sealing ring 22, a first inflation pipe 23, a third slot 24, a welding end 25, a traveling component 26, a second inflation pipe 27, an inflation device 28, a drive base 30, and a second electric push rod 31.

[0028] like Figure 1-4As shown, a transmission cavity 12 is provided inside the operating table 11. Two first drive shafts 13 are rotatably arranged inside the transmission cavity 12. A conveyor belt 14 is sleeved on the outer circumference of the two first drive shafts 13. A first electric push rod 15 is fixedly arranged in the transmission cavity 12 and is located at one end of the conveyor belt 14. A lifting platform 16 is fixedly connected to the first electric push rod 15. A first slot 17 is provided on the lifting platform 16. A first opening 18 is provided on the side wall of the transmission cavity 12 away from the first electric push rod 15. Two clamping seats 20 are slidably arranged on both sides of the first opening 18. A drive assembly is fixedly connected to the clamping seats 20. Both the first drive shafts 13 and the first electric push rod 15 are connected to a drive power supply.

[0029] A third slot 24 is provided on the inner circular surface of the clamping seat 20. A second slot 21 is provided on both sides of the third slot 24. A sealing ring 22 is embedded in the second slot 21. A first inflation pipe 23 is fixedly connected to the sealing ring 22. A welding end 25 is slidably connected in the third slot 24. A traveling component 26 is fixedly connected to the welding end 25. The traveling component 26 has a built-in driving power supply. A second inflation pipe 27 is also provided on the clamping seat 20. The second inflation pipe 27 is used to fill the clamping seat 20 with inert gas.

[0030] It is worth noting that the sealing ring 22 is made of high-temperature resistant elastic material, and the radius of the sealing ring 22 can be increased by filling inert gas through the first inflation pipe 23. The traveling component 26 is existing technology.

[0031] The drive assembly includes a drive base 30 and a second electric push rod 31. The drive base 30 is fixedly connected to the operating table 11. The second electric push rod 31 is externally connected to a drive power source. One end of the second electric push rod 31 is fixedly connected to the drive base 30, and the other end of the second electric push rod 31 is fixedly connected to the outer circular surface of the clamping seat 20. An inflation device 28 is slidably sleeved on the second electric push rod 31. The inflation device 28 is existing technology. The inflation device 28 is fixedly connected to a first inflation pipe 23 and a second inflation pipe 27. Both the first inflation pipe 23 and the second inflation pipe 27 pass through the clamping seat 20. The second inflation pipe 27 is located between two sealing rings 22.

[0032] The diameter of the first opening 18 is equal to the inner diameter of the clamping seat 20, and the diameter of the first slot 17 in the radial direction of the first electric push rod 15 is smaller than the diameter of the clamping seat 20.

[0033] When this solution is used for welding in the production of thermos cups, firstly, the thermos cup shell is placed on the conveyor belt 14, the first drive shaft 13 is started, the first drive shaft 13 drives the conveyor belt 14 to rotate, the conveyor belt 14 transports the thermos cup shell to the first slot 17, the first electric push rod 15 is started, the first electric push rod 15 pushes the lifting platform 16 to move towards the first opening 18, the paper lifting platform 16 pushes the part of the thermos cup shell to be welded in the first slot 17 to the third slot 24.

[0034] Then, the second electric push rod 31 pushes the clamping seat 20 to contact the outer shell of the thermos cup, places the inner liner of the thermos cup in the clamping seat 20, aligns the seam between the inner liner of the thermos cup and the outer shell of the thermos cup with the third slot 24, and causes the inflation device 28 to fill the first inflation pipe 23 and the second inflation pipe 27 with inert gas respectively. The inflation device 28 fills the sealing ring 22 with inert gas through the first inflation pipe 23. The sealing ring 22 expands and fixes the inner liner of the thermos cup to the outer shell of the thermos cup and seals the seam. The inflation device 28 fills the space sealed by the sealing ring 22 with inert gas through the second inflation pipe 27.

[0035] Finally, the welding end 25 and the traveling component 26 are activated. The traveling component 26 drives the welding end 25 to slide along the third slot 24. The welding end 25 welds the seam between the inner liner and the outer shell of the thermos cup. The second electric push rod 31 retracts and removes the welded thermos cup.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding device for the production of thermos cups, characterized in that: The device includes an operating table (11), a first electric push rod (15), and two clamping seats (20). The operating table (11) has a transmission cavity (12). Two first drive shafts (13) are rotatably arranged in the transmission cavity (12). A conveyor belt (14) is sleeved on the outer surface of the two first drive shafts (13). The first electric push rod (15) is fixedly arranged in the transmission cavity (12) and is located at one end of the conveyor belt (14). The first electric push rod (15) is fixedly connected to a lifting platform (16). The lifting platform (16) has a first slot (17). The side wall of the transmission cavity (12) away from the first electric push rod (15) has a first opening (18). The two clamping seats (20) are slidably arranged on both sides of the first opening (18). The clamping seats (20) are fixedly connected to a drive assembly.

2. The welding device for producing thermos cups according to claim 1, characterized in that: The clamping seat (20) has a third groove (24) on its inner circular surface. The third groove (24) has a second groove (21) on both sides. A sealing ring (22) is embedded in the second groove (21). The sealing ring (22) is fixedly connected to a first inflation pipe (23). A welding end (25) is slidably connected in the third groove (24). A traveling component (26) is fixedly connected to the welding end (25). The clamping seat (20) is also provided with a second inflation pipe (27), which is used to fill the clamping seat (20) with inert gas.

3. The welding device for producing thermos cups according to claim 2, characterized in that: The drive assembly includes a drive base (30) and a second electric push rod (31). The drive base (30) is fixedly connected to the operating table (11). One end of the second electric push rod (31) is fixedly connected to the drive base (30), and the other end of the second electric push rod (31) is fixedly connected to the outer surface of the clamping seat (20). An inflation device (28) is slidably sleeved on the second electric push rod (31). The inflation device (28) is fixedly connected to the first inflation pipe (23) and the second inflation pipe (27).

4. The welding device for producing thermos cups according to claim 2, characterized in that: The diameter of the first opening (18) is equal to the inner diameter of the clamping seat (20).

5. A welding device for producing thermos cups according to claim 2, characterized in that: The diameter of the first slot (17) in the radial direction of the first electric push rod (15) is smaller than the diameter of the clamping seat (20).

6. A welding device for producing thermos cups according to claim 3, characterized in that: The first inflation pipe (23) and the second inflation pipe (27) are both disposed through the clamping seat (20), and the second inflation pipe (27) is disposed between the two sealing rings (22).

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