Bottom sheet welding device applied to vacuum cup

Abstract

The utility model discloses a bottom sheet welding device applied to a vacuum cup. The bottom sheet welding device comprises a shell assembly. The upper pressing rotating assembly is arranged in the shell assembly in a penetrating mode, and a first ball bearing and a plurality of holding blocks sequentially arranged in the first ball bearing in a surrounding mode are arranged on the upper pressing rotating assembly; the downward pressing and holding assembly is arranged above the upward pressing and rotating assembly; the laser welding assembly is arranged on the shell assembly and is arranged on the side edge of the upper pressing rotating assembly; the pressing and holding assembly comprises a supporting mechanism, two first telescopic air cylinders, a holding rotating mechanism, a second telescopic air cylinder and a pressing rotating mechanism. According to the utility model, the holding rotating mechanism and the plurality of holding blocks are matched to carry out holding operation on the vacuum cup body, so that the problem of poor welding possibly caused by inclination of the vacuum cup body in the existing automatic welding process is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermos cup production equipment, in particular to a bottom plate welding device applied to a thermos cup. Background Art

[0002] With the development of society, people are paying more and more attention to health. Stainless steel thermos cups have become the first choice for tea sets. However, since it is difficult to weld stainless steel cups mechanically, the existing thermos cup bottom welding is generally done manually, which is time-consuming and prone to defective products. Some manufacturers also use automatic welding of the thermos cup bottom.

[0003] The publication number CN117548923A provides a multi-station multifunctional thermos cup bottom film welding device, including a body, the body including an upper frame, a lower frame and a frame plate, a working chamber is formed between the upper frame and the lower frame, a workbench is provided in the working chamber, a placement component is provided on the workbench, and the placement component includes a hollow fixed sleeve; a clamping mechanism is provided on the upper frame, the clamping mechanism includes a clamping motor, a clamping screw and a clamping device, the bottom end of the clamping device is exposed in the working chamber, the top end of the clamping screw is connected to the motor shaft on the clamping motor, and the clamping device is threadedly connected to the clamping screw; a bottom matching mechanism and a rotating mechanism are provided on the lower frame, the bottom matching mechanism includes a bottom matching cylinder, a bottom matching rod and a bottom film disk, the top end of the bottom matching rod is connected to the bottom film disk, and the bottom end of the bottom matching rod is connected to the bottom matching cylinder; the rotating mechanism includes a rotating motor and a first transmission device, and a welding gun assembly is also provided on the lower frame, which is a device that can automatically complete the welding of the cup bottom and the cup barrel. Although this technical solution can realize the automatic welding operation of the thermos cup body and the bottom film, since the thermos cup body is only pressed by a clamping mechanism to clamp the cup mouth, it is easy to cause the thermos cup body to tilt during the automatic welding process, resulting in poor welding between the thermos cup body and the bottom film, resulting in the appearance of defective products, thereby affecting the welding quality; therefore, a bottom film welding device applied to a thermos cup is provided to solve the above problem. Utility Model Content

[0004] One of the purposes of the utility model is to provide a bottom plate welding device for a thermos cup, so as to solve the problem that the thermos cup body may be tilted and cause poor welding in the existing automatic welding process.

[0005] The utility model can realize a bottom plate welding device applied to a thermos cup by the following technical scheme:

[0006] The utility model discloses a bottom plate welding device for a thermos cup, comprising a shell assembly; an upper pressing and rotating assembly, which is arranged in the shell assembly through the upper pressing and rotating assembly; a lower pressing and holding assembly, which is arranged above the upper pressing and rotating assembly, and the lower pressing and holding assembly and the upper pressing and rotating assembly cooperate to hold and rotate the thermos cup body; a laser welding assembly, which is arranged on the shell assembly and on the side of the upper pressing and rotating assembly, and performs a laser welding operation on the bottom plate and the thermos cup body;

[0007] Among them, the upper pressure rotating component is provided with a first ball bearing and a plurality of clamping blocks arranged in sequence around the first ball bearing; the lower pressure clamping component includes a supporting mechanism, which is fixedly arranged on the upper pressure rotating component; two first telescopic cylinders symmetrically arranged on the supporting mechanism; a clamping rotating mechanism that movably passes through the supporting mechanism and is transmission-connected to the two first telescopic cylinders, and cooperates with the plurality of clamping blocks to clamp the thermos cup body; a second telescopic cylinder that movably passes through the supporting mechanism; a lower pressure rotating mechanism that is transmission-connected to the second telescopic cylinder and arranged above the upper pressure rotating component, and performs a clamping operation on the cup mouth of the thermos cup body.

[0008] In one embodiment, the upper pressure rotating assembly includes a clamping support mechanism, which is arranged on the shell assembly; a film placing mechanism movably arranged below the clamping support mechanism; a lifting drive mechanism and a rotating mechanism respectively connected to the film placing mechanism, the lifting drive mechanism drives the film placing mechanism to move longitudinally, and the rotating mechanism drives the film placing mechanism to rotate.

[0009] In one embodiment, the clamping support mechanism includes a support frame having a working cavity extending therethrough; the first ball bearing is disposed in the working cavity.

[0010] In one embodiment, the film placement mechanism includes a sleeve, which is movably arranged on the support frame and is transmission-connected to the rotating mechanism; a connecting shaft that is movably arranged in the sleeve and is transmission-connected to the lifting drive mechanism; and a film placement table that is fixedly arranged on the connecting shaft.

[0011] In one embodiment, the rotating mechanism includes a fixed plate, which is fixedly arranged in the housing assembly; a rotating motor fixedly arranged on the fixed plate; a driving wheel fixedly arranged on the rotating shaft of the rotating motor; a driven wheel fixedly arranged on the sleeve; and a synchronous belt respectively arranged on the driving wheel and the driven wheel.

[0012] In one embodiment, the support mechanism includes two guide pillars which are symmetrically fixed on the clamping support mechanism; and a support plate which is fixed on the two guide pillars.

[0013] In one embodiment, the clamping and rotating mechanism includes a mounting plate, both ends of which are respectively connected to the two first telescopic cylinders and are movably passed through the two guide columns; a second ball bearing is arranged on the mounting plate; and a pressing mold is arranged in the second ball bearing and corresponds to the position of the multiple clamping blocks, which cooperates with the multiple clamping blocks to clamp the thermos cup body.

[0014] In one embodiment, the downward pressing rotating mechanism includes a downward pressing shaft, which is drivingly connected to the second telescopic cylinder; a rotoscoping head rotatably arranged below the downward pressing shaft; and a third ball bearing fixedly arranged in the rotoscoping head and connected to the downward pressing shaft.

[0015] In one embodiment, the laser welding assembly includes a lateral adjustment mechanism, which is arranged on the shell assembly and on the side of the upper pressure rotating assembly; a longitudinal adjustment mechanism movably arranged on the lateral adjustment mechanism; a laser welding device movably arranged on the longitudinal adjustment mechanism; the lateral adjustment mechanism and the longitudinal adjustment mechanism cooperate to drive the laser welding device to move relative to the upper pressure rotating assembly.

[0016] In one embodiment, the utility model, a bottom film welding device applied to a thermos cup, further includes a main control box, a button assembly, a display screen and a lighting lamp; the main control box is fixedly arranged in the shell assembly, and is electrically connected to the upper pressure rotating assembly, the lower pressure clamping assembly, the laser welding assembly, the button assembly, the display screen and the lighting lamp respectively; the button assembly and the display screen are respectively arranged through the shell assembly; the lighting lamp is fixedly arranged on the lower pressure clamping assembly.

[0017] Compared with the prior art, the beneficial effects of the bottom plate welding device applied to the thermos cup of the utility model are as follows:

[0018] The utility model discloses a bottom film welding device applied to a thermos cup, which drives a clamping rotating mechanism to move downward through a telescopic cylinder, so that the clamping rotating mechanism is in contact and connected with a plurality of clamping blocks, so that the plurality of clamping blocks clamp the thermos cup body, effectively solving the problem that the thermos cup body may be tilted and cause poor welding in the existing automatic welding process; at the same time, through the cooperation of an upper pressing rotating component and a lower pressing rotating mechanism, the bottom film is tightly connected to the thermos cup body, and then the bottom film and the thermos cup body are driven to rotate by the rotating mechanism while the laser welding component performs laser welding operation on the bottom film and the thermos cup, thereby realizing automatic welding operation of the bottom film and the thermos cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a structural schematic diagram of a bottom plate welding device used for a thermos cup according to the utility model;

[0021] Figure 2 yes Figure 1 The schematic diagram of a partial exploded structure of a bottom plate welding device for a thermos cup of the utility model shown in the figure includes an upper pressing rotating assembly, a lower pressing clamping assembly and a laser welding assembly;

[0022] Figure 3 yes Figure 2 The structural schematic diagram of the upper pressure rotating assembly shown;

[0023] Figure 4 yes Figure 2 A schematic cross-sectional structure diagram of the upper pressure rotating assembly shown;

[0024] Figure 5 yes Figure 2 The structural schematic diagram of the pressing and holding assembly shown includes a holding and rotating mechanism and a pressing and rotating mechanism;

[0025] Figure 6 yes Figure 5 The exploded structural diagram of the clamping and rotating mechanism is shown;

[0026] Figure 7 yes Figure 5 Schematic diagram of the exploded structure of the downward pressing and rotating mechanism shown;

[0027] Figure 8 yes Figure 2 Schematic diagram of the structure of the laser welding assembly shown.

[0028] Indications in the figure: 10, film welding device; 11, housing assembly; 111, adjustment foot pad; 112, material discharge tray; 12, upper pressure rotating assembly; 121, clamping support mechanism; 1211, support frame; 12111, working chamber; 1212, first ball bearing; 1213, clamping block; 122, film placing mechanism; 1221, sleeve; 1222, connecting shaft; 1223, film placing table; 123, lifting drive mechanism; 1231, servo brake motor; 1232, screw rod; 1233, connecting sleeve; 124, rotating mechanism; 1241, fixing plate; 1242, rotating motor; 1243, driving wheel; 1244, driven wheel; 12 45, synchronous belt; 13, pressing and holding assembly; 131, supporting mechanism; 1311, guide column; 1312, supporting plate; 132, first telescopic cylinder; 133, holding and rotating mechanism; 1331, mounting plate; 13311, through hole; 1332, second ball bearing; 1333, pressing die; 134, second telescopic cylinder; 135, pressing and rotating mechanism; 1351, pressing shaft; 1352, top head; 1353, third ball bearing; 14, laser welding assembly; 141, lateral adjustment mechanism; 142, longitudinal adjustment mechanism; 143, laser welding device; 15, main control box; 16, button assembly; 17, display screen; 18, lighting lamp. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-Figure 2As shown, the utility model is a bottom film welding device 10 used for a thermos cup, which mainly includes a shell component 11, an upper pressure rotating component 12, a lower pressure holding component 13, a laser welding component 14, a main control box 15, a button component 16, a display screen 17 and a lighting lamp 18; the shell component 11 is a hollow cavity, which is a supporting body; the upper pressure rotating component 12 is arranged through the shell component 11, which drives the bottom film arranged thereon to rise and rotate, so as to perform an automatic welding operation with the thermos cup body; the lower pressure holding component 13 is arranged above the upper pressure rotating component 12, and the two cooperate to hold and rotate the thermos cup body; the laser welding component 14 is arranged in the shell component The main control box 15 is fixedly arranged in the shell assembly 11, and is electrically connected with the upper pressing rotating assembly 12, the lower pressing clamping assembly 13, the laser welding assembly 14, the button assembly 16, the display screen 17, and the lighting lamp 18 respectively; the button assembly 16 and the display screen 17 are respectively arranged on the shell assembly 11, and the switch and function setting of the bottom film welding device 10 are performed through the button assembly 16, and the welding status of the bottom film is displayed in real time through the display screen 17; the lighting lamp 18 is fixedly arranged on the lower pressing clamping assembly 13, and provides lighting for the operator.

[0032] See also Figure 1-Figure 2 As shown, a plurality of adjustment pads 111 are provided at the lower end of the shell assembly 11. The shell assembly 11 is placed in a horizontal state by adjusting the corresponding adjustment pads 111 so as to match different ground conditions. A discharge tray 112 is provided on the shell assembly 11. The insulation cup body and the bottom film can be placed in the discharge tray 112, so that the operator can conveniently place the insulation cup body and the bottom film on the upper pressure rotating assembly 12 for welding operations.

[0033] See also Figure 1-Figure 4 As shown, in the present embodiment, the upper pressing rotating assembly 12 comprises a clamping support mechanism 121, a film placing mechanism 122, a lifting driving mechanism 123 and a rotating mechanism 124; the clamping support mechanism 121 is arranged on the shell assembly 11; the film placing mechanism 122 is movably arranged below the clamping support mechanism 121; the lifting driving mechanism 123 is transmission-connected with the film placing mechanism 122, which drives the film placing mechanism 122 to move longitudinally; the rotating mechanism 124 is transmission-connected with the film placing mechanism 122, which drives the film placing mechanism 122 to rotate, thereby facilitating the rotation welding operation of the film and the thermos cup body arranged thereon.

[0034] See also Figure 3 and Figure 4As shown, specifically, the clamping support mechanism 121 includes a support frame 1211, a first ball bearing 1212 and a plurality of clamping blocks 1213; the support frame 1211 is fixedly arranged on the shell assembly 11, and a working cavity 12111 is arranged through it; the first ball bearing 1212 is arranged in the working cavity 12111; a plurality of clamping blocks 1213 are arranged in sequence around the first ball bearing 1212, and when the clamping assembly 13 is pressed down, the plurality of clamping blocks 1213 clamp the thermos cup body, thereby effectively preventing the thermos cup body from tilting during the welding process, and the plurality of clamping blocks 1213 can rotate relative to the support frame 1211 through the action of the first ball bearing 1212. Specifically, the film placement mechanism 122 includes a sleeve 1221, a connecting shaft 1222 and a film placement table 1223; the sleeve 1221 is movably arranged on the support frame 1211 and is connected to the rotating mechanism 124, and the rotating mechanism 124 drives the sleeve 1221 to rotate relative to the support frame 1211; the connecting shaft 1222 is movably arranged in the sleeve 1221 and is connected to the lifting drive mechanism 123, and the lifting drive mechanism 123 drives the connecting shaft 1222 to move longitudinally, specifically, the connecting shaft 1222 is threadedly connected to the sleeve 1221; the film placement table 1223 is fixedly arranged on the connecting shaft 1222, and it moves with the movement of the connecting shaft 1222.

[0035] See also Figure 3 and Figure 4 As shown, specifically, the lifting drive mechanism 123 includes a servo brake motor 1231, a screw rod 1232 and a connecting sleeve 1233 which are connected in sequence; the servo brake motor 1231 drives the screw rod 1232 to drive the connecting sleeve 1233 to move longitudinally, and the connecting sleeve 1233 is transmission-connected to the connecting shaft 1222 and can rotate relative to the supporting mechanism 12 through the bearing. Specifically, the rotating mechanism 124 includes a fixed plate 1241, a rotating motor 1242, a driving wheel 1243, a driven wheel 1244 and a synchronous belt 1245; the fixed plate 1241 is fixedly arranged in the housing assembly 11; the rotating motor 1242 is fixedly arranged on the fixed plate 1241; the driving wheel 1243 is fixedly arranged on the rotating shaft of the rotating motor 1242; the driven wheel 1244 is fixedly arranged on the sleeve 1221; the synchronous belt 1245 is respectively arranged on the driving wheel 1243 and the driven wheel 1244; the rotating motor 1242 drives the sleeve 1221 to rotate through the transmission action of the driving wheel 1243, the synchronous belt 1245 and the driven wheel 1244 in turn.

[0036] See also Figure 1 , Figure 2 and Figure 5As shown, in this embodiment, the pressing and holding assembly 13 includes a support mechanism 131, two first telescopic cylinders 132, a holding and rotating mechanism 133, a second telescopic cylinder 134 and a pressing and rotating mechanism 135; the support mechanism 131 is fixedly arranged on the holding support mechanism 121; the two first telescopic cylinders 132 are symmetrically arranged on the support mechanism 131; the two ends of the holding and rotating mechanism 133 are respectively movable through the support mechanism 131 and are respectively connected to the two first telescopic cylinders 132 in transmission connection; the two first telescopic cylinders 132 The clamping rotating mechanism 133 is synchronously driven to move downward so that it is in contact and connected with multiple clamping blocks 1213, so that multiple clamping blocks 1213 can clamp the thermos cup body; the second telescopic cylinder 134 is movably arranged on the support mechanism 131; the downward pressing rotating mechanism 135 is transmission-connected with the second telescopic cylinder 134 and is arranged above the clamping support mechanism 121, and the second telescopic cylinder 134 drives the downward pressing rotating mechanism 135 to move downward, thereby clamping the cup mouth of the thermos cup body arranged on the clamping support mechanism 121.

[0037] See also Figure 5 and Figure 6 As shown, in this embodiment, the support mechanism 131 includes two guide columns 1311 and a support plate 1312; the two guide columns 1311 are symmetrically fixed on the clamping support mechanism 121, and perform guiding and limiting operations on the longitudinal movement of the clamping rotation mechanism 133; the support plate 1312 is fixed on the two guide columns 1311. In this embodiment, the clamping and rotating mechanism 133 includes a mounting plate 1331, a second ball bearing 1332 and a pressing mold 1333; both ends of the mounting plate 1331 are respectively connected to the two first telescopic cylinders 132 in a transmission manner and are respectively movably penetrated through the two guide columns 1311. Specifically, a through hole 13311 is penetrated through the mounting plate 1331; the second ball bearing 1332 is disposed in the through hole 13311; the pressing mold 1333 is disposed in the second ball bearing 1332 and corresponds to the position of the plurality of clamping blocks 1213, and can rotate relative to the mounting plate 1331 through the second ball bearing 1332; when the two first telescopic cylinders 132 drive the mounting plate 1331 to move downward, the pressing mold 1333 also moves downward along with the mounting plate 1331, thereby contacting and connecting with the plurality of clamping blocks 1213, so that the plurality of clamping blocks 1213 clamp the thermos cup body, thereby effectively preventing the thermos cup body from tilting during the welding process.

[0038] See also Figure 5 and Figure 7As shown, in this embodiment, the downward pressing rotating mechanism 135 includes a downward pressing shaft 1351, a push head 1352 and a third ball bearing 1353; the downward pressing shaft 1351 is transmission-connected to the second telescopic cylinder 134, and the second telescopic cylinder 134 drives the downward pressing shaft 1351 to move longitudinally; the push head 1352 is movably arranged below the downward pressing shaft 1351; the third ball bearing 1353 is fixedly arranged in the push head 1352 and connected to the downward pressing shaft 1351, and the push head 1352 can rotate relative to the downward pressing shaft 1351 through the third ball bearing 1353.

[0039] See also Figure 1 , Figure 2 and Figure 8 As shown, in this embodiment, the laser welding assembly 14 includes a transverse adjustment mechanism 141, a longitudinal adjustment mechanism 142 and a laser welding device 143; the transverse adjustment mechanism 141 is arranged on the housing assembly 11 and arranged on the side of the upper pressing rotating assembly 12; the longitudinal adjustment mechanism 142 is movably arranged on the transverse adjustment mechanism 141, and the transverse displacement of the longitudinal adjustment mechanism 142 can be adjusted by adjusting the transverse adjustment mechanism 141; the laser welding device 143 is movably arranged on the longitudinal adjustment mechanism 142, and the longitudinal displacement of the laser welding device 143 can be adjusted by adjusting the longitudinal adjustment mechanism 142, so that the position of the laser welding device 143 relative to the upper pressing rotating assembly 12 is adjusted by the cooperation of the transverse adjustment mechanism 141 and the longitudinal adjustment mechanism 142. Specifically, the transverse adjustment mechanism 141, the longitudinal adjustment mechanism 142 and the laser welding device 143 all adopt the existing technology, so the specific structure and working process of the three are not repeated here, as long as it meets the present application.

[0040] See also Figure 1 and Figure 2 As shown, in this embodiment, the main control box 15 is electrically connected to the upper pressing rotating assembly 12, the lower pressing holding assembly 13, the laser welding assembly 14, the button assembly 16, the display screen 17, and the lighting lamp 18, and the control technologies adopted are all existing technologies, so the specific control process and the adopted models are not described here, as long as they meet the requirements of this application. The button assembly 16 includes a switch button, an emergency stop button and a plurality of function buttons, and the switch button and the emergency stop button are used to control the switch and emergency stop operations of the film welding device 10 respectively, and the different function settings of the film welding device 10 are performed through the plurality of function buttons.

[0041] It should be noted that the specific working process of the bottom film welding device 10 applied to the thermos cup of the utility model is: first, the bottom film is placed on the bottom film placement table 1223, and then the thermos cup body is placed on the bottom film through multiple clamping blocks 1213; then the two first telescopic cylinders 132 drive the pressing mold 1333 to move downward, so that the pressing mold 1333 is in contact and connected with the multiple clamping blocks 1213, so that the multiple clamping blocks 1213 clamp the thermos cup body; then the second telescopic cylinder 134 drives the top head 1352 to move downward to press the cup mouth of the thermos cup body, and at the same time, the lifting drive mechanism 123 drives the bottom film placement table 1223 to move upward, so that the bottom film set on the bottom film placement table 1223 is tightly connected with the thermos cup body, and then the laser welding assembly 14 performs laser welding operation on the bottom film and the thermos cup while driving the bottom film and the thermos cup body to rotate through the rotating mechanism 124, thereby realizing automatic welding operation of the bottom film and the thermos cup.

[0042] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A bottom plate welding device for a thermos cup, characterized in that: include: Shell assembly; An upper pressing rotating assembly is disposed through the housing assembly; A downward pressing and holding assembly is arranged above the upward pressing and rotating assembly, and the downward pressing and holding assembly cooperates with the upward pressing and rotating assembly to hold and rotate the thermos cup body; A laser welding assembly, which is arranged on the housing assembly and on the side of the upper pressing rotating assembly, and performs a laser welding operation on the bottom sheet and the thermos cup body; Among them, the upper pressure rotating component is provided with a first ball bearing and a plurality of clamping blocks arranged in sequence around the first ball bearing; the lower pressure clamping component includes a supporting mechanism, which is fixedly arranged on the upper pressure rotating component; two first telescopic cylinders symmetrically arranged on the supporting mechanism; a clamping rotating mechanism that movably passes through the supporting mechanism and is transmission-connected to the two first telescopic cylinders, and cooperates with the plurality of clamping blocks to clamp the thermos cup body; a second telescopic cylinder that movably passes through the supporting mechanism; a lower pressure rotating mechanism that is transmission-connected to the second telescopic cylinder and arranged above the upper pressure rotating component, and performs a clamping operation on the cup mouth of the thermos cup body.

2. A bottom plate welding device for a thermos cup according to claim 1, characterized in that: The upper pressing rotating assembly includes a clamping support mechanism, which is arranged on the shell assembly; a film placing mechanism movably arranged below the clamping support mechanism; a lifting drive mechanism and a rotating mechanism respectively connected to the film placing mechanism, the lifting drive mechanism drives the film placing mechanism to move longitudinally, and the rotating mechanism drives the film placing mechanism to rotate.

3. A bottom plate welding device for a thermos cup according to claim 2, characterized in that: The clamping support mechanism comprises a support frame, which is provided with a working cavity through it; the first ball bearing is arranged in the working cavity.

4. A bottom plate welding device for a thermos cup according to claim 3, characterized in that: The film placement mechanism includes a sleeve, which is movably arranged on the support frame and is transmission-connected to the rotating mechanism; a connecting shaft that is movably arranged in the sleeve and is transmission-connected to the lifting drive mechanism; and a film placement table that is fixedly arranged on the connecting shaft.

5. A bottom plate welding device for a thermos cup according to claim 4, characterized in that: The rotating mechanism includes a fixed plate, which is fixedly arranged in the housing assembly; a rotating motor fixedly arranged on the fixed plate; a driving wheel fixedly arranged on the rotating shaft of the rotating motor; a driven wheel fixedly arranged on the sleeve; and synchronous belts respectively arranged on the driving wheel and the driven wheel.

6. The bottom plate welding device for a thermos cup according to claim 2, characterized in that: The support mechanism comprises two guide columns which are symmetrically fixed on the clamping support mechanism; and a support plate which is fixed on the two guide columns.

7. A bottom plate welding device for a thermos cup according to claim 6, characterized in that: The clamping and rotating mechanism includes a mounting plate, both ends of which are respectively connected to the two first telescopic cylinders and movably pass through the two guide columns; a second ball bearing is arranged on the mounting plate; and a pressing mold is arranged in the second ball bearing and corresponds to the position of the multiple clamping blocks, which cooperates with the multiple clamping blocks to clamp the thermos cup body.

8. The bottom plate welding device for a thermos cup according to claim 1, characterized in that: The downward pressing rotating mechanism comprises a downward pressing shaft which is drivingly connected to the second telescopic cylinder; a top head which is rotatably arranged below the downward pressing shaft; and a third ball bearing which is fixedly arranged in the top head and connected to the downward pressing shaft.

9. The bottom plate welding device for a thermos cup according to claim 1, characterized in that: The laser welding assembly includes a transverse adjustment mechanism, which is arranged on the shell assembly and on the side of the upper pressure rotating assembly; a longitudinal adjustment mechanism movably arranged on the transverse adjustment mechanism; a laser welding device movably arranged on the longitudinal adjustment mechanism; the transverse adjustment mechanism and the longitudinal adjustment mechanism cooperate to drive the laser welding device to move relative to the upper pressure rotating assembly.

10. A bottom plate welding device for a thermos cup according to any one of claims 1 to 9, characterized in that: It also includes a main control box, a button assembly, a display screen and a lighting lamp; the main control box is fixedly arranged in the shell assembly, and is electrically connected to the upper pressing and rotating assembly, the lower pressing and clamping assembly, the laser welding assembly, the button assembly, the display screen and the lighting lamp respectively; the button assembly and the display screen are respectively arranged on the shell assembly; the lighting lamp is fixedly arranged on the lower pressing and clamping assembly.

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