A welding device for manufacturing metal packaging cans

Abstract

The invention discloses a welding device for manufacturing metal packaging cans, and the invention relates to the technical field of welding devices. The invention comprises a fixed ring, one side of the fixed ring is fixedly connected with a cylinder, one side of the fixed ring close to the bottom plate is fixedly connected with a fixed plate, the fixed plate is fixedly connected with a slide cylinder, one side of the moving ring is fixedly connected with a moving plate, the moving plate is fixedly connected with the output end of the slide cylinder, one side of the fixed ring is fixedly connected with a limit rod, the surface of the limit rod is slidably connected with the inner side surface of the moving ring, the welding assembly is slidably connected with the inner side surface of the moving ring, the surface of the surrounding assembly is fixedly connected with a mounting plate, the mounting plate is fixedly connected with the inner side surface of the fixed ring, the rotation of the welding assembly and the cylindrical cylinder cooperate with each other to surround the can body into a cylinder, the welding assembly is arranged inside the moving ring, and as the welding assembly slides on the surface of the limit rod, the sliding path of the welding assembly can be extended to ensure that the welding assembly can weld the complete side seam.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, and in particular to welding equipment for manufacturing metal packaging cans. Background Art

[0002] Metal packaging cans are a common packaging container, mainly made of metal materials such as tinplate or aluminum. They have a can body, a can bottom and a can cover, and have a complete structure. The manufacturing process involves cutting, stamping, curling, welding and other processes. The welding positions include the longitudinal seam of the can body, the connection between the can bottom and the can body, etc. The material has high strength and good toughness, can withstand external forces and certain deformation, has good barrier properties to oxygen, water vapor and light, and is easy to process into a variety of shapes, with a wide range of applications;

[0003] Can body welding is a key link in the manufacture of metal packaging cans. When welding the can body, it mainly involves the welding of the longitudinal seam of the can body. For cylindrical packaging cans, the complete can body is formed by curling the metal sheet and welding its longitudinal edges. The welding must ensure the sealing, integrity and strength of the can body, ensure that the can body is wrapped into a regular cylindrical shape, and ensure that the packaging can can effectively protect the internal products. Therefore, we proposed a welding equipment for the manufacture of metal packaging cans. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a welding device for manufacturing metal packaging cans, comprising:

[0005] A bottom plate, the top of which is fixedly connected to a slide cylinder;

[0006] A welding mechanism, wherein the welding mechanism has a surrounding structure and is used to surround the body of the metal packaging can into a cylindrical shape and weld it;

[0007] Wherein, the welding mechanism comprises:

[0008] A fixed ring, one side of which is fixedly connected to a cylinder, and the cylinder is arranged just above the bottom plate, and a movable ring is arranged on one side of the cylinder away from the fixed ring;

[0009] A fixed plate is fixedly connected to a side of the fixed ring close to the bottom plate, a side of the fixed plate away from the fixed ring is fixedly connected to a side of the slide cylinder away from the bottom plate, a side of the movable ring close to the bottom plate is fixedly connected to a movable plate, a side of the movable plate away from the movable ring is fixedly connected to an output end of the slide cylinder;

[0010] A limiting rod is fixedly connected to one side of the fixed ring close to the movable ring, and a surface of the limiting rod is slidably connected to an inner side surface of the movable ring;

[0011] A welding assembly, wherein the welding assembly is slidably connected to the inner side surface of the moving ring, and the inner side surface of the welding assembly is slidably connected to the surface of the limiting rod;

[0012] A surrounding component, the surrounding component has a magnetic attraction structure, and is used to surround a can body that can be attracted by magnets, such as tinplate. A mounting plate is fixedly connected to the surface of the surrounding component, and the surface of the mounting plate is fixedly connected to the inner side surface of the fixing ring;

[0013] The welding assembly fixes one side of the can body, and the other side falls naturally and is adsorbed by the surrounding assembly. The surrounding assembly is then started, which drives the can body to rotate, and then surrounds the can body into a cylindrical shape. The other side of the can body is also fixed by the welding assembly, and then the welding assembly is driven to move, and the welding assembly slides along the side seam of the can body and welds the side seam of the can body. The slide cylinder is started, and the slide cylinder drives the moving plate to move, and finally drives the moving ring to move, and then the welded can body is removed. The rotation of the welding assembly and the cylindrical cylinder can cooperate with each other to surround the can body into a cylinder and maintain the cylindrical structure of the can body. The welding assembly is arranged inside the moving ring. As the welding assembly slides on the surface of the limit rod, the sliding path of the welding assembly can be extended to ensure that the welding assembly can weld the complete side seam and ensure complete welding of the can body.

[0014] Furthermore, the welding assembly includes a positive plate, which is arranged directly below the limiting rod, and the positive plate is embedded in the interior of the cylinder, and the surface of the positive plate is fixedly connected to the inner side of the cylinder, and a negative plate is arranged on the side of the positive plate close to the limiting rod, and the negative plate is arranged inside the movable ring, and a driving assembly is fixedly connected to the side of the negative plate close to the limiting rod, and the side of the driving assembly away from the negative plate is slidably connected to the surface of the limiting rod, and both sides of the can body are directly above the positive plate, and then the driving assembly is driven to slide on the surface of the limiting rod, and then the negative plate is driven to move, and the side seam is clamped by the positive plate and the negative plate, and then the positive plate is connected to the negative plate, and then the side seam melts, and the welding is completed as the negative plate moves, and the positive plate completely covers the inner side of the entire side seam, and can preheat the inner side of the side seam after being connected to the positive plate, so that the welding speed is faster.

[0015] Furthermore, two groups of magnetic plates are symmetrically arranged on both sides of the positive electrode plate, and the number of magnetic plates in each group is set to be several. The magnetic plates are embedded inside the cylinder, and the surfaces of the magnetic plates are fixedly connected to the inner side surfaces of the cylinder. The two groups of magnetic plates are respectively used for adsorption and fixation on both sides of the can body, and the several magnetic plates on both sides can fix the can body more firmly.

[0016] Furthermore, the driving assembly includes a driving seat, the surface of the driving seat is slidably connected to the inner side surface of the moving ring, the inner side surface of the driving seat is slidably connected to the surface of the limiting rod, the inner side surface of the driving seat is slidably connected to the side of the negative plate close to the limiting rod, and a telescopic rod is provided at the interval between the negative plate and the driving seat, the telescopic rod is symmetrically arranged around the negative plate, and the two ends of the telescopic rod are respectively fixedly connected to the side of the negative plate and the driving seat close to each other, the telescopic rod is started to extend and retract, and the negative plate is driven to move, thereby adjusting the gap between the negative plate and the positive plate, thereby completing the welding of can bodies of different thicknesses, and the driving seat is driven to slide on the surface of the limiting rod, driving the telescopic rod to move, and finally driving the negative plate to move, thereby completing the welding of the entire side seam.

[0017] Furthermore, the outer side surface of the limit rod is slidably connected to the limit block, the surface of the limit block is slidably connected to the inner side surface of the fixing ring, and the limit block portion is arranged directly above the cylinder body, and the negative electrode plate portion is arranged directly above the cylinder body, and the limit block and the negative electrode plate limit the side seam of the can body to prevent the side seam from warping.

[0018] Furthermore, a limit spring is sleeved on the outside of the limit rod, and the two ends of the limit spring are respectively fixedly connected to the side of the limit block and the driving seat that are close to each other. The driving seat moves, driving the limit spring to compress. When the limit spring is compressed to a certain extent, the limit spring drives the limit block to slide into the inside of the fixed ring. At this time, the negative plate has compressed the side seam, which can avoid the side seam from warping and will not cause misalignment. After the limit block no longer needs to be limited, it slides into the inside of the fixed ring, which will not affect the complete welding of the side seam. The limit spring can cancel the limit of the side seam by the limit block while buffering the driving seat, thereby avoiding affecting the complete welding of the side seam of the negative plate.

[0019] Furthermore, a groove body is provided on the side where the fixed ring and the movable ring are close to each other, and a plurality of groove bodies are arranged on the circumference of the groove body, and a first limit plate and a second limit plate are provided at the interval between the fixed ring and the movable ring, and the sides where the first limit plate and the second limit plate are away from each other are respectively slidably connected with the inner side surfaces of the groove bodies on the surface sides of the fixed ring and the movable ring, and the sides where the first limit plate and the second limit plate are close to each other are slidably engaged, and the sides where the first limit plate and the second limit plate are close to the cylinder body are provided with a slope, and the can body surrounds the surface of the cylinder body, and the first limit plate and the second limit plate limit the can body to prevent the can body from warping and ensure that the can body can surround into a cylindrical shape, and the slope of the first limit plate and the second limit plate is set along the rotation direction of the surrounding component, thereby driving the first limit plate and the second limit plate to slide inside the groove body during surrounding, to ensure the limitation of can bodies with different thicknesses.

[0020] Furthermore, the first limit plate and the second limit plate are slidably connected to a sliding rod on one side of the groove body, and the two ends of the sliding rod are respectively fixedly connected to the inner side surface of the groove body, and a plurality of the sliding rods are sleeved on the outside of the sliding rods, and the compression spring is fixedly connected to the side of the groove body away from the axis of the cylinder body. The compression spring drives the first limit plate and the second limit plate to press the can body against the outside of the cylinder body, and as the can body is wrapped around, the surface of the can body is corrected to ensure that the can body is wrapped into a regular cylindrical shape.

[0021] Furthermore, the surrounding component includes an annular groove, which is arranged in a partial ring shape, and a plurality of the annular grooves are arranged along the axial direction of the cylinder, and the inner side surface of the annular groove is slidably connected with a sleeve rod, and the part of the sleeve rod located inside the annular groove has a strong magnetism, a rotating shaft is arranged inside the sleeve rod, and a plurality of inner side surfaces of the sleeve rod are fixedly connected to the surface of the rotating shaft, so that the can body is adsorbed on the strong magnetic end of the sleeve rod, the rotating shaft is driven to rotate, driving the sleeve rod to rotate, and then driving the sleeve rod to slide inside the annular groove, and finally completing the surrounding of the can body.

[0022] Furthermore, a motor is arranged inside the fixing ring, the surface of the motor is fixedly connected to the inner side surface of the mounting plate, and the rotating shaft is fixedly connected to the output end of the motor, and when the motor is started, the output end of the motor drives the rotating shaft to rotate.

[0023] The present invention has the beneficial effects:

[0024] 1. The present invention sets a welding mechanism, and the rotation of the welding assembly and the cylindrical cylinder body can cooperate with each other to wrap the can body into a cylinder and maintain the cylindrical structure of the can body. The welding assembly is set inside the movable ring. As the welding assembly slides on the surface of the limit rod, the sliding path of the welding assembly can be extended to ensure that the welding assembly can weld the complete side seam and ensure the complete welding of the can body.

[0025] 2. The present invention sets a welding assembly, and the side seam is clamped by the positive plate and the negative plate, and then the positive plate and the negative plate are connected, and then the side seam is melted, and the welding is completed with the movement of the negative plate, and the positive plate completely covers the inner side of the entire side seam. After being connected with the positive plate, the inner side of the side seam can be preheated, so that the welding speed is faster, and two groups of magnetic plates are used for adsorption and fixation on both sides of the can body, and several magnetic plates on both sides can fix the can body more firmly.

[0026] 3. The present invention sets a limit spring, a limit block and a negative plate to limit the side seam of the can body to prevent the side seam from warping. The limit spring is compressed. When the limit spring is compressed to a certain extent, the limit spring drives the limit block to slide into the fixed ring. At this time, the negative plate has pressed the side seam tightly, which can prevent the side seam from warping and will not cause misalignment. After the limit block is no longer needed, it slides into the fixed ring without affecting the complete welding of the side seam. The limit spring can cancel the limit of the limit block on the side seam while buffering the driving seat to avoid affecting the complete welding of the side seam of the negative plate.

[0027] 4. The present invention sets a first limiting plate, and the can body surrounds the surface of the cylinder. The first limiting plate and the second limiting plate limit the can body to prevent the can body from tilting and ensure that the can body can be surrounded into a cylinder. The slope of the first limiting plate and the second limiting plate is set along the rotation direction of the surrounding component, so as to drive the first limiting plate and the second limiting plate to slide inside the groove body during the surrounding, ensuring the limitation of can bodies with different thicknesses. The clamping spring drives the first limiting plate and the second limiting plate to press the can body against the outside of the cylinder, and as the can body surrounds, the surface of the can body is corrected to ensure that the can body is surrounded into a regular cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the welding equipment for manufacturing the metal packaging can of the present invention;

[0029] Figure 2 This is a schematic diagram of the assembly structure of the welding mechanism of the present invention;

[0030] Figure 3 Schematic diagram of the structure of the positive electrode plate of the present invention;

[0031] Figure 4 It is a schematic diagram of the magnetic plate structure of the present invention;

[0032] Figure 5 It is a schematic diagram of the cross-sectional structure of the moving ring of the present invention;

[0033] Figure 6 This is a schematic diagram of the structure of the welding assembly of the present invention;

[0034] Figure 7 It is a schematic diagram of the cross-sectional structure of the first limiting plate of the present invention;

[0035] Figure 8 It is a schematic diagram of the structure of the surround assembly of the present invention.

[0036] In the figure: 1, base plate; 2, slide cylinder; 3, welding mechanism; 31, fixed ring; 32, cylinder; 33, limit rod; 34, moving ring; 35, fixed plate; 36, moving plate; 37, welding assembly; 371, positive plate; 372, negative plate; 373, driving assembly; 3731, driving seat; 3732, telescopic rod; 3733, limit block; 3734, limit spring; 374, magnetic plate; 375, slot body; 376, first limit plate; 377, second limit plate; 378, slide rod; 379, clamping spring; 38, surrounding assembly; 381, ring groove; 382, ​​sleeve rod; 383, rotating shaft; 384, motor; 39, mounting plate. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0038] Example 1, please refer to Figure 1-Figure 7 The present invention is a welding device for manufacturing metal packaging cans, comprising:

[0039] A bottom plate 1, the top of which is fixedly connected with a slide cylinder 2;

[0040] The welding mechanism 3 has a surrounding structure and is used to surround the body of the metal packaging can into a cylindrical shape and weld it;

[0041] Among them, the welding mechanism 3 includes:

[0042] A fixed ring 31, one side of the fixed ring 31 is fixedly connected with a cylinder 32, and the cylinder 32 is arranged just above the bottom plate 1, and a movable ring 34 is arranged on the side of the cylinder 32 away from the fixed ring 31;

[0043] A fixed plate 35 is fixedly connected to a side of the fixed ring 31 close to the bottom plate 1, and a side of the fixed plate 35 away from the fixed ring 31 is fixedly connected to a side of the slide cylinder 2 away from the bottom plate 1. A moving plate 36 is fixedly connected to a side of the moving ring 34 close to the bottom plate 1, and a side of the moving plate 36 away from the moving ring 34 is fixedly connected to an output end of the slide cylinder 2.

[0044] A side of the fixed ring 31 close to the movable ring 34 is fixedly connected to a limiting rod 33, and a surface of the limiting rod 33 is slidably connected to an inner side surface of the movable ring 34;

[0045] A welding assembly 37, wherein the welding assembly 37 is slidably connected to the inner side surface of the moving ring 34, and the inner side surface of the welding assembly 37 is slidably connected to the surface of the limiting rod 33;

[0046] A surrounding component 38, which has a magnetic attraction structure and is used to surround a can body that can be attracted by magnets, such as tinplate. A mounting plate 39 is fixedly connected to the surface of the surrounding component 38, and a surface of the mounting plate 39 is fixedly connected to the inner side surface of the fixing ring 31;

[0047] The welding assembly 37 fixes one side of the can body, and the other side hangs naturally and is adsorbed by the surrounding assembly 38. The surrounding assembly 38 is then started, and the surrounding assembly 38 drives the can body to rotate, and then surrounds the can body into a cylindrical shape. The other side of the can body is also fixed by the welding assembly 37, and then the welding assembly 37 is driven to move, and the welding assembly 37 slides along the side seam of the can body and welds the side seam of the can body. The slide cylinder 2 is started, and the slide cylinder 2 drives the moving plate 36 to move, and finally drives the moving ring 34 to move, and then the welded can body is removed. The rotation of the welding assembly 37 and the cylindrical barrel 32 can cooperate with each other to surround the can body into a cylinder and maintain the cylindrical structure of the can body. The welding assembly 37 is arranged inside the moving ring 34. As the welding assembly 37 slides on the surface of the limit rod 33, the sliding path of the welding assembly 37 can be extended to ensure that the welding assembly 37 can weld the complete side seam and ensure the complete welding of the can body.

[0048] The welding assembly 37 includes a positive plate 371, which is arranged directly below the limiting rod 33, and the positive plate 371 is embedded in the cylinder 32, and the surface of the positive plate 371 is fixedly connected to the inner side of the cylinder 32, and a negative plate 372 is arranged on the side of the positive plate 371 close to the limiting rod 33, and the negative plate 372 is arranged inside the moving ring 34, and a driving assembly 373 is fixedly connected to the side of the negative plate 372 close to the limiting rod 33, and the side of the driving assembly 373 away from the negative plate 372 is fixedly connected to the surface of the limiting rod 33. The two sides of the can body are directly above the positive plate 371, and then the driving assembly 373 is driven to slide on the surface of the limit rod 33, and then the negative plate 372 is driven to move, and the side seam is clamped by the positive plate 371 and the negative plate 372, and then the positive plate 371 is connected to the negative plate 372, and then the side seam is melted, and the welding is completed with the movement of the negative plate 372, and the positive plate 371 completely covers the inner side of the entire side seam, and can preheat the inner side of the side seam after being connected with the positive plate 371, so that the welding speed is faster.

[0049] Two groups of magnetic plates 374 are symmetrically arranged on both sides of the positive plate 371, and the number of magnetic plates 374 in each group is set to be several. The magnetic plates 374 are embedded in the interior of the cylinder 32, and the surfaces of the magnetic plates 374 are fixedly connected to the inner side surfaces of the cylinder 32. The two groups of magnetic plates 374 are respectively used for adsorption and fixation on both sides of the can body, and the several magnetic plates 374 on both sides can fix the can body more firmly.

[0050] The driving assembly 373 includes a driving seat 3731, the surface of the driving seat 3731 is slidably connected to the inner side of the moving ring 34, the inner side of the driving seat 3731 is slidably connected to the surface of the limiting rod 33, the inner side of the driving seat 3731 is slidably connected to the side of the negative plate 372 close to the limiting rod 33, and a telescopic rod 3732 is provided at the interval between the negative plate 372 and the driving seat 3731. The telescopic rod 3732 is symmetrically arranged with the negative plate 372 as the center, and the two ends of the telescopic rod 3732 are respectively fixedly connected to the side of the negative plate 372 and the driving seat 3731 close to each other. The telescopic rod 3732 is started to extend and retract, driving the negative plate 372 to move, thereby adjusting the gap between the negative plate 372 and the positive plate 371, thereby completing the welding of can bodies of different thicknesses, driving the driving seat 3731 to slide on the surface of the limiting rod 33, driving the telescopic rod 3732 to move, and finally driving the negative plate 372 to move, and finally completing the welding of the entire side seam.

[0051] The outer side surface of the limit rod 33 is slidably connected to the limit block 3733, the surface of the limit block 3733 is slidably connected to the inner side surface of the fixing ring 31, and the limit block 3733 is partially arranged just above the cylinder 32, and the negative plate 372 is partially arranged just above the cylinder 32. The limit block 3733 and the negative plate 372 limit the side seam of the can body to prevent the side seam from warping.

[0052] The outer sleeve of the limit rod 33 is provided with a limit spring 3734, and the two ends of the limit spring 3734 are respectively fixedly connected to the side of the limit block 3733 and the drive seat 3731 that are close to each other. The drive seat 3731 moves, driving the limit spring 3734 to compress. When the limit spring 3734 is compressed to a certain extent, the limit spring 3734 drives the limit block 3733 to slide into the fixed ring 31. At this time, the negative plate 372 has compressed the side seam, which can avoid the side seam from tilting and will not cause misalignment. After the limit block 3733 no longer needs to be limited, it slides into the fixed ring 31 without affecting the complete welding of the side seam. The limit spring 3734 can cancel the limit of the limit block 3733 on the side seam while buffering the drive seat 3731, so as to avoid affecting the complete welding of the side seam of the negative plate 372.

[0053] A groove 375 is provided on the side where the fixed ring 31 and the movable ring 34 are close to each other, and a plurality of grooves 375 are arranged on the circumference. A first limiting plate 376 and a second limiting plate 377 are provided at the interval between the fixed ring 31 and the movable ring 34. The side where the first limiting plate 376 and the second limiting plate 377 are away from each other are slidably connected to the inner side surface of the groove 375 on the surface side of the fixed ring 31 and the movable ring 34 respectively. The side where the first limiting plate 376 and the second limiting plate 377 are close to each other is slidably engaged, and the first limiting plate 376 and the second limiting plate 377 are slidably engaged. The positioning plate 376 and the second limiting plate 377 are provided with a slope on one side close to the cylinder 32. The can body is wrapped around the surface of the cylinder 32. The first limiting plate 376 and the second limiting plate 377 limit the can body to prevent the can body from tilting and ensure that the can body can be wrapped into a cylindrical shape. The slope of the first limiting plate 376 and the second limiting plate 377 is set along the rotation direction of the wrapping component 38, thereby driving the first limiting plate 376 and the second limiting plate 377 to slide inside the groove 375 during wrapping to ensure the limitation of can bodies of different thicknesses.

[0054] The first limit plate 376 and the second limit plate 377 are slidably connected to one side of the groove body 375, and the two ends of the slide bar 378 are respectively fixedly connected to the inner side surface of the groove body 375, and the outside of several slide bars 378 are sleeved with a clamping spring 379, and the clamping spring 379 is fixedly connected to the side of the groove body 375 away from the axis of the cylinder body 32. The clamping spring 379 drives the first limit plate 376 and the second limit plate 377 to press the can body against the outside of the cylinder body 32, and as the can body is wrapped around, the surface of the can body is corrected to ensure that the can body is wrapped into a regular cylindrical shape.

[0055] Example 2, please refer to Figure 1-Figure 8 The surrounding component 38 includes an annular groove 381, which is set to a partial ring shape, and a plurality of annular grooves 381 are set along the axial direction of the cylinder 32, and the inner side surface of the annular groove 381 is slidably connected with a sleeve rod 382, ​​and the part of the sleeve rod 382 located inside the annular groove 381 has a strong magnetism, and a rotating shaft 383 is set inside the sleeve rod 382, ​​and the inner side surfaces of a plurality of sleeve rods 382 are fixedly connected to the surface of the rotating shaft 383, so that the can body is adsorbed on the strong magnetic end of the sleeve rod 382, ​​and the rotating shaft 383 is driven to rotate, driving the sleeve rod 382 to rotate, and then driving the sleeve rod 382 to slide inside the annular groove 381, and finally completing the surrounding of the can body.

[0056] A motor 384 is disposed inside the fixing ring 31 , the surface of the motor 384 is fixedly connected to the inner side surface of the mounting plate 39 , and the rotating shaft 383 is fixedly connected to the output end of the motor 384 . When the motor 384 is started, the output end of the motor 384 drives the rotating shaft 383 to rotate.

[0057] When in use, a group of magnetic plates 374 adsorbs and fixes one side of the can body, and the other side naturally hangs down, and the other side of the can body is adsorbed on the strong magnetic end of the sleeve rod 382, ​​and the motor 384 is started. The output end of the motor 384 drives the rotating shaft 383 to rotate, drives the sleeve rod 382 to rotate, and then drives the sleeve rod 382 to slide inside the annular groove 381, and finally completes the encirclement of the can body. The limit block 3733 and the negative plate 372 limit the side seam of the can body to prevent the side seam from tilting, and the telescopic rod 3732 is started to extend and retract, driving the negative plate 372 to move, thereby adjusting the gap between the negative plate 372 and the positive plate 371, and driving the driving seat 3731 to slide on the surface of the limit rod 33, driving the telescopic rod 3732 to move, and finally driving the negative plate 372 to move , the driving seat 3731 moves, driving the limit spring 3734 to compress. When the limit spring 3734 is compressed to a certain extent, the limit spring 3734 drives the limit block 3733 to slide into the fixed ring 31. The limit spring 3734 can cancel the limit of the side seam by the limit block 3733 while buffering the driving seat 3731. The negative plate 372 moves, and the side seam is clamped by the positive plate 371 and the negative plate 372. Then the positive plate 371 and the negative plate 372 are connected, and then the side seam melts, and the welding is completed with the movement of the negative plate 372. The slide cylinder 2 is started, and the slide cylinder 2 drives the moving plate 36 to move, and finally drives the moving ring 34 to move, and then the welded can body is removed, thereby completing the welding of a can body.

[0058] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A welding device for manufacturing metal packaging cans, characterized in that: include: A bottom plate (1), the top of which is fixedly connected to a slide cylinder (2); A welding mechanism (3), wherein the welding mechanism (3) has a surrounding structure and is used to surround the body of the metal packaging can into a cylindrical shape and weld it; Wherein, the welding mechanism (3) comprises: A fixed ring (31), one side of the fixed ring (31) being fixedly connected to a cylinder (32), the cylinder (32) being arranged directly above the bottom plate (1), and a movable ring (34) being arranged on a side of the cylinder (32) away from the fixed ring (31); A fixed plate (35) is fixedly connected to a side of the fixed ring (31) close to the base plate (1); a side of the fixed plate (35) away from the fixed ring (31) is fixedly connected to a side of the slide cylinder (2) away from the base plate (1); a side of the movable ring (34) close to the base plate (1) is fixedly connected to a movable plate (36); a side of the movable plate (36) away from the movable ring (34) is fixedly connected to an output end of the slide cylinder (2); A side of the fixed ring (31) close to the movable ring (34) is fixedly connected to a limiting rod (33), and a surface of the limiting rod (33) is slidably connected to an inner side surface of the movable ring (34); A welding assembly (37), wherein the welding assembly (37) is slidably connected to the inner side surface of the movable ring (34), and the inner side surface of the welding assembly (37) is slidably connected to the surface of the limiting rod (33); A surrounding component (38), the surrounding component (38) having a magnetic attraction structure and used to surround a can body that can be magnetically attracted, a mounting plate (39) being fixedly connected to a surface of the surrounding component (38), and a surface of the mounting plate (39) being fixedly connected to an inner side surface of a fixing ring (31); The welding assembly (37) comprises a positive electrode plate (371), the positive electrode plate (371) being arranged directly below the limiting rod (33), the positive electrode plate (371) being embedded in the interior of the cylinder (32), and the surface of the positive electrode plate (371) being fixedly connected to the inner side surface of the cylinder (32), a negative electrode plate (372) being arranged on the side of the positive electrode plate (371) close to the limiting rod (33), the negative electrode plate (372) being arranged inside the moving ring (34), and a driving assembly (373) being fixedly connected to the side of the negative electrode plate (372) close to the limiting rod (33), and a side of the driving assembly (373) away from the negative electrode plate (372) being slidably connected to the surface of the limiting rod (33); Two groups of magnetic plates (374) are symmetrically arranged on both sides of the positive electrode plate (371), and each group of magnetic plates (374) is provided with a plurality of magnetic plates. The magnetic plates (374) are embedded inside the cylinder (32), and the surfaces of the magnetic plates (374) are fixedly connected to the inner side surfaces of the cylinder (32).

2. A welding device for manufacturing metal packaging cans according to claim 1, characterized in that: The driving assembly (373) comprises a driving seat (3731), the surface of the driving seat (3731) being slidably connected to the inner side surface of the moving ring (34), the inner side surface of the driving seat (3731) being slidably connected to the surface of the limiting rod (33), the inner side surface of the driving seat (3731) being slidably connected to a side of the negative electrode plate (372) close to the limiting rod (33), a telescopic rod (3732) being arranged at a distance between the negative electrode plate (372) and the driving seat (3731), the telescopic rod (3732) being symmetrically arranged with the negative electrode plate (372) as the center, and two ends of the telescopic rod (3732) being respectively fixedly connected to the negative electrode plate (372) and the side of the driving seat (3731) close to each other.

3. A welding device for manufacturing metal packaging cans according to claim 2, characterized in that: The outer side surface of the limit rod (33) is slidably connected to the limit block (3733), the surface of the limit block (3733) is slidably connected to the inner side surface of the fixing ring (31), and a portion of the limit block (3733) is arranged directly above the cylinder (32), and a portion of the negative electrode plate (372) is arranged directly above the cylinder (32).

4. A welding device for manufacturing metal packaging cans according to claim 3, characterized in that: A limiting spring (3734) is sleeved on the outside of the limiting rod (33), and two ends of the limiting spring (3734) are respectively fixedly connected to the limiting block (3733) and the side of the driving seat (3731) that are close to each other.

5. A welding device for manufacturing metal packaging cans according to claim 4, characterized in that: A groove body (375) is provided on the side where the fixed ring (31) and the movable ring (34) are close to each other, and a plurality of groove bodies (375) are arranged on the circumference. A first limit plate (376) and a second limit plate (377) are arranged at the interval between the fixed ring (31) and the movable ring (34). The sides where the first limit plate (376) and the second limit plate (377) are away from each other are slidably connected to the inner side surfaces of the groove bodies (375) on the surface side of the fixed ring (31) and the movable ring (34), respectively. The sides where the first limit plate (376) and the second limit plate (377) are close to each other are slidably engaged, and the sides where the first limit plate (376) and the second limit plate (377) are close to the cylinder (32) are provided with a slope.

6. A welding device for manufacturing metal packaging cans according to claim 5, characterized in that: The first limiting plate (376) and the second limiting plate (377) are slidably connected to a slide rod (378) on one side located inside the groove body (375), and the two ends of the slide rod (378) are respectively fixedly connected to the inner side surface of the groove body (375), and the outside of several slide rods (378) are sleeved with a clamping spring (379), and the clamping spring (379) is fixedly connected to the side of the groove body (375) away from the axis of the cylinder body (32).

7. A welding device for manufacturing metal packaging cans according to claim 6, characterized in that: The surrounding component (38) comprises an annular groove (381), the annular groove (381) being arranged in a partial annular shape, and a plurality of the annular grooves (381) being arranged along the axial direction of the cylinder (32), and a sleeve rod (382) being slidably connected to the inner side surface of the annular groove (381), and a portion of the sleeve rod (382) located inside the annular groove (381) having a strong magnet, a rotating shaft (383) being arranged inside the sleeve rod (382), and a plurality of inner side surfaces of the sleeve rods (382) being fixedly connected to the surface of the rotating shaft (383).

8. A welding device for manufacturing metal packaging cans according to claim 7, characterized in that: A motor (384) is disposed inside the fixing ring (31), a surface of the motor (384) is fixedly connected to an inner side surface of the mounting plate (39), and the rotating shaft (383) is fixedly connected to an output end of the motor (384).

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