Device for welding bottle body and wafer of vacuum bottle

Abstract

The utility model relates to a vacuum bottle body and wafer welding device which comprises a welding table and a pressure applying mechanism, the welding table comprises a base, a floating structure, a floating block and an electrode bar, the floating structure is arranged at the top of the base, the floating block is fixed to the top of the floating structure, and the floating block moves downwards under stress and automatically returns when stress is relieved through the floating structure; the top of the floating block is concavely provided with a groove matched with the outer contour and the size of the bottom of a bottle body, the floating block is provided with an open hole penetrating through the floating block in the center of the groove, and the electrode bar is vertically fixed to the top of the base and aligned with the open hole. The downward pressing assembly is slidably connected with the support and connected with the lifting driving part, the downward pressing assembly is located above the floating block and is aligned to the groove, and the downward pressing assembly is driven by the lifting driving part to ascend and descend. Automatic pressure applying on the bottle body is achieved, manual force applying is replaced with machine operation, stable force applying is achieved, and the welding effect is guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of thermos bottle manufacturing, and more specifically, it relates to a device for welding the body of a thermos bottle to a disc. Background Technology

[0002] In the production of thermos flasks, vents are usually set on the bottom surface of the flask body to allow for subsequent venting and form a vacuum jacket. After the gas is released, the vents need to be sealed. The vents are usually sealed with glue. However, since the flask body is usually made of metal, using glue to seal the bottom surface of the flask will create a material difference that is not aesthetically pleasing. Therefore, a circular groove is usually set on the bottom surface of the flask body corresponding to the vent. After the vent is sealed with glue, a circular piece is welded into the circular groove to cover the glue, thus forming a uniform metal outer surface of the flask body, which is more aesthetically pleasing.

[0003] The welding of the thermos bottle body to the disc is usually done using resistance welding. Resistance welding typically requires applying pressure to the bottle body to maintain a tight bond with the disc for a good weld. In related technologies, applying pressure to the bottle body is usually done manually, which is laborious and prone to unstable pressure, resulting in poor weld quality. Utility Model Content

[0004] To address the problem that manually applying pressure to the bottle body and the disc during resistance welding is laborious and prone to causing unstable pressure and poor welding results, this application provides a welding device for the bottle body and the disc of a thermos.

[0005] A device for welding the body of a thermos flask to a circular plate includes a welding table and a pressure applying mechanism. The welding table includes a base, a floating structure, a floating block, and an electrode rod. The floating structure is disposed on the top of the base, and the floating block is fixed to the top of the floating structure. The floating structure allows the floating block to move downward under force and automatically return to its original position when the force is released. The top of the floating block has a recessed groove that matches the outer contour and size of the bottom of the flask. The floating block has an opening that penetrates it at the center of the groove. The inner diameter of the opening is smaller than the diameter of the circular plate but larger than the diameter of the electrode rod. The electrode rod is vertically fixed to the top of the base and aligned with the opening. The pressure applying mechanism includes a bracket, a lifting drive, and a pressing assembly. The lifting drive is fixed to the bracket, and the pressing assembly is slidably connected to the bracket and connected to the lifting drive. The pressing assembly is positioned above the floating block and aligned with the groove. The lifting drive drives the pressing assembly to move up and down.

[0006] Preferably, the floating structure includes springs, guide shafts, and guide sleeves. There are multiple springs, all disposed on the top of the base and evenly arranged around the electrode rod. The tops of each spring are connected and fixed to the floating block. There are also multiple guide sleeves, all disposed on the top of the base and evenly arranged around the electrode rod. The number of guide shafts is the same as the number of guide sleeves, and a guide shaft is movably disposed within the inner hole of each guide sleeve. The tops of each guide shaft are connected and fixed to the floating block.

[0007] Preferably, the bracket includes two circular vertical rods and a crossbeam. Each of the two circular vertical rods has a connecting foot at its bottom. One end of the crossbeam is connected and fixed to the top of one of the circular vertical rods, and the other end of the crossbeam is connected and fixed to the top of the other circular vertical rod. The lifting drive is fixed to the middle of the crossbeam. The pressing assembly includes a mounting plate, a connector, and a pressure block. Movable sleeves are fixed to both ends of the mounting plate. The two movable sleeves are respectively fitted onto the two circular vertical rods and slide along the length of the circular vertical rods. The pressure block is connected to the middle of the mounting plate via the connector. The lifting drive is connected and fixed to the middle of the mounting plate.

[0008] Preferably, the lifting drive component is a pneumatic cylinder or a hydraulic cylinder.

[0009] Preferably, the pressing assembly further includes a flexible pad and a fixing member, wherein the flexible pad wraps around the bottom surface of the pressing block and is detachably connected to the pressing block through the fixing member.

[0010] Preferably, the fixing element is a pressure strip, and there are two pressure strips. After the flexible pad wraps around the bottom surface of the pressure block, its two ends are folded to the top surface of the pressure block. Both pressure strips are fixed to the top surface of the pressure block by bolts and press down on the two ends of the flexible pad respectively.

[0011] The beneficial technical effects of this application are as follows: A circular piece is placed in a fixed position on the bottom surface of the groove of the floating block, and then the bottle is placed in the groove, so that the circular piece is engaged with the circular groove on the bottom surface of the bottle. The groove limits the horizontal movement of the bottle. The lifting drive component drives the pressing component to descend, and the pressing component descends to press against the top of the bottle, thus pressing down on the bottle. The bottle is subjected to force on the floating block, causing the floating block to descend, so that the electrode rod presses against the circular piece through the opening. The electrode rod and the pressing component cooperate to achieve a tight bond between the bottle and the circular piece. By supplying power to the electrode rod, the circular piece and the bottle are welded and fixed. The lifting drive component drives the pressing component to automatically apply pressure to the bottle, and the machine operation replaces manual force application, achieving stable force application and ensuring welding effect. Furthermore, the floating block and floating structure enable automatic contact between the electrode rod and the circular piece, further reducing manual operation and improving production efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a welding device for the body of a thermos bottle and a circular plate according to this embodiment.

[0013] Reference numerals: 1. Welding table; 11. Base; 111. Plate; 112. Support; 12. Floating structure; 121. Spring; 122. Guide shaft; 123. Guide sleeve; 13. Floating block; 131. Groove; 132. Opening; 14. Electrode rod; 2. Pressing mechanism; 21. Support; 211. Circular vertical rod; 212. Crossbeam; 213. Connecting foot; 22. Lifting drive component; 23. Pressing assembly; 231. Mounting plate; 2311. Movable sleeve; 232. Connector; 233. Pressure block; 234. Flexible gasket; 235. Fixing component; Detailed Implementation

[0014] The technical solutions of 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. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0015] See Figure 1A device for welding the body of a thermos flask to a circular plate includes a welding table 1 and a pressure applying mechanism 2. The welding table 1 includes a base 11, a floating structure 12, a floating block 13, and an electrode rod 14. The base 11 includes a plate 111 and legs disposed on opposite sides of the bottom surface of the plate 111. The electrode rod 14 is vertically fixed to the middle of the plate 111. The floating structure 12 includes springs 121, guide shafts 122, and guide sleeves 123. There are four springs 121, all disposed on the top of the plate 111 and evenly arranged around the electrode rod 14. The top ends of the four springs 121 are connected and fixed to the floating block 13, so that the floating block 13 is elastically supported by the springs 121. When subjected to downward pressure, the floating block 13 descends, and when the force on the floating block 13 is released, the floating block 13 automatically returns to its original position. There are four guide sleeves 123, which are all set on the top of the base 11 and are evenly arranged around the electrode rod 14. All four guide sleeves 123 are set through the plate 111. The number of guide shafts 122 is the same as the number of guide sleeves 123, and a guide shaft 122 is movably set in the inner hole of each guide sleeve 123. The top ends of the multiple guide shafts 122 are connected and fixed to the floating block 13. The floating block 13 is guided to rise and fall by the cooperation of the guide shafts 122 and the guide sleeves 123, so that the floating block 13 can rise and fall stably and is not easily deviated horizontally.

[0016] See Figure 1 The top of the floating block 13 is recessed with a groove 131 that matches the outer contour and size of the bottom of the bottle. The floating block 13 has an opening 132 through it in the center of the groove 131. The inner diameter of the opening 132 is smaller than the diameter of the disc and larger than the diameter of the electrode rod 14. The electrode rod 14 is aligned with the opening 132. The disc is fixed in place on the bottom surface of the groove 131 of the floating block 13, and then the bottle is placed in the groove 131. The disc is then engaged in the circular groove on the bottom surface of the bottle. The disc and the bottle can be placed by an external robot or manually. In this embodiment, there is no limitation. The groove 131 is used to limit the horizontal movement of the bottle, so that the bottle is not easy to move when subjected to downward pressure. By setting the opening 132 to be larger than the diameter of the electrode rod 14 and smaller than the diameter of the disc, the electrode rod 14 can pass through the opening 132 to avoid pressing against the disc and prevent the disc from falling off.

[0017] See Figure 1The pressure applying mechanism 2 includes a bracket 21112, a lifting drive component 22, and a pressing component 23. The lifting drive component 22 is fixed on the bracket 21112 and can be either a pneumatic cylinder or a hydraulic cylinder, preferably a pneumatic cylinder. The pressing component 23 is slidably connected to the bracket 21112 and is positioned above the floating block 13 and aligned with the groove 131. The lifting drive component 22 drives the pressing component 23 to rise and fall, thus pressing down on the bottle body. The bottle body is subjected to force against the floating block 13, causing the floating block 13 to descend. This allows the electrode rod 14 to press against the disc through the opening 132. The electrode rod 14 and the pressing component 23 work together to tightly bond the bottle body and the disc. By energizing the electrode rod 14 with an external power source, the disc and the bottle body are welded and fixed. The lifting drive component 22 drives the pressing component 23 to automatically apply pressure to the bottle body, replacing manual force application with machine operation, achieving stable force application and ensuring welding effect. Furthermore, the floating block 13 and the floating structure 12 enable the electrode rod 14 to automatically contact the disc, further reducing manual operation and improving production efficiency.

[0018] See Figure 1 Furthermore, the support frame 21112 includes two circular vertical rods 211 and a crossbeam 212. Each circular vertical rod 211 has a connecting foot 213 at its bottom end, which connects and fixes the circular vertical rod 211 to the ground or workbench. One end of the crossbeam 212 is connected and fixed to the top of one circular vertical rod 211, and the other end of the crossbeam 212 is connected and fixed to the top of the other circular vertical rod 211. The lifting drive component 22 is fixed to the middle of the crossbeam 212. The pressing assembly 23 includes a mounting plate 231. Connector 232, pressure block 233, and two ends of mounting plate 231 are fixed with movable sleeves 2311. The two movable sleeves 2311 are respectively fitted onto two circular vertical rods 211 and slide along the length of the circular vertical rods 211. Pressure block 233 is connected to the middle of mounting plate 231 through connector 232. Lifting drive component 22 is connected and fixed to the middle of mounting plate 231. The circular vertical rods 211 and movable sleeves 2311 cooperate to guide and stabilize mounting plate 231 when it lifts and lowers, thereby enabling pressure block 233 to apply precise pressure to the bottle.

[0019] See Figure 1 Furthermore, the pressing assembly 23 also includes a flexible pad 234 and a fixing member 235. The flexible pad 234 includes the bottom surface of the pressing block 233 and is detachably connected to the pressing block 233 through the fixing member 235. The flexible pad 234 is preferably a cotton pad. The flexible pad 234 buffers the impact between the pressing block 233 and the bottle body, reducing the possibility of damage to the bottle body. The flexible pad 234 and the pressing block 233 are detachably connected through the fixing member 235, and the worn flexible pad 234 can be replaced.

[0020] See Figure 1 Furthermore, the fixing element 235 is a pressure strip, and there are two pressure strips. After the flexible pad 234 wraps around the bottom surface of the pressure block 233, its two ends are folded to the top surface of the pressure block 233. Both pressure strips are fixed to the top surface of the pressure block 233 by bolts and press down on the two ends of the flexible pad 234 respectively, thereby realizing the detachable connection between the flexible pad 234 and the pressure block 233.

[0021] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bottle body and disc welding apparatus for a thermos bottle, characterized by: The device includes a welding table and a pressure application mechanism. The welding table comprises a base, a floating structure, a floating block, and an electrode rod. The floating structure is disposed on the top of the base, and the floating block is fixed to the top of the floating structure. The floating structure allows the floating block to move downward under force and automatically return to its original position when the force is released. The top of the floating block has a recessed groove that matches the outer contour and size of the bottom of the bottle. The floating block has an opening that penetrates it through the center of the groove. The inner diameter of the opening is smaller than the diameter of the disc but larger than the diameter of the electrode rod. The electrode rod is vertically fixed to the top of the base and aligned with the opening. The pressure application mechanism includes a bracket, a lifting drive, and a pressing assembly. The lifting drive is fixed to the bracket, and the pressing assembly is slidably connected to the bracket and connected to the lifting drive. The pressing assembly is positioned above the floating block and aligned with the groove. The lifting drive drives the pressing assembly to move up and down.

2. The device for welding the body of a thermos flask to a circular plate according to claim 1, characterized in that: The floating structure includes springs, guide shafts, and guide sleeves. There are multiple springs, all of which are disposed on the top of the base and are evenly arranged around the electrode rod. The tops of the multiple springs are all connected and fixed to the floating block. There are multiple guide sleeves, all of which are disposed on the top of the base and are evenly arranged around the electrode rod. The number of guide shafts is the same as the number of guide sleeves, and a guide shaft is movably disposed in the inner hole of each guide sleeve. The tops of the multiple guide shafts are all connected and fixed to the floating block.

3. The device for welding the body of a thermos flask to a circular plate according to claim 1, characterized in that: The bracket includes two circular vertical rods and a crossbeam. Each of the two circular vertical rods has a connecting foot at its bottom. One end of the crossbeam is fixedly connected to the top of one of the circular vertical rods, and the other end of the crossbeam is fixedly connected to the top of the other circular vertical rod. The lifting drive is fixed to the middle of the crossbeam. The pressing assembly includes a mounting plate, a connector, and a pressure block. Movable sleeves are fixed to both ends of the mounting plate. The two movable sleeves are respectively fitted onto the two circular vertical rods and slide along the length of the circular vertical rods. The pressure block is connected to the middle of the mounting plate via the connector. The lifting drive is fixedly connected to the middle of the mounting plate.

4. The device for welding the body of a thermos flask to a circular plate according to claim 3, characterized in that: The lifting drive component is a pneumatic cylinder or a hydraulic cylinder.

5. The device for welding the body of a thermos flask to a circular plate according to claim 3, characterized in that: The pressing assembly also includes a flexible gasket and a fixing member. The flexible gasket wraps around the bottom surface of the pressing block and is detachably connected to the pressing block through the fixing member.

6. The device for welding the body of a thermos flask to a circular plate according to claim 5, characterized in that: The fixing element is a pressure strip, and there are two pressure strips. After the flexible pad wraps around the bottom surface of the pressure block, its two ends are folded over to the top surface of the pressure block. Both pressure strips are fixed to the top surface of the pressure block by bolts and press down on the two ends of the flexible pad respectively.

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