Automatic welding device for welding outer half tube of container

Abstract

The technical scheme belongs to the technical field of welding equipment, and particularly relates to an automatic welding device for welding an outer half tube of a container, which is used for continuously welding the half tube on the peripheral wall of a reaction kettle and comprises a bearing column provided with a sliding driving piece I; the displacement device slides on the bearing column, and the first sliding driving piece drives the displacement device to slide to drive the welding device to change the height position; the material rolling device is used for bearing the reaction kettle and is used for driving the reaction kettle to rotate around the axis of the reaction kettle; the welding device is installed at the end of the displacement device and erected above the material rolling device, the welding device comprises a welding actuator and a pressing and fixing wheel, the pressing and fixing wheel rotates on the welding actuator, the displacement device drives the welding device to slide, and the sliding direction of the welding device is parallel to the rotating axis of the reaction kettle. The pressing and fixing wheel presses the semi-pipe on the peripheral wall of the semi-pipe in the rotating direction of the reaction kettle, and the welding actuator continuously welds a welding seam between the semi-pipe and the reaction kettle; continuous and automatic welding of half pipes is achieved, and the production efficiency is improved.

Description

Technical Field

[0001] The present technical solution relates to the technical field of welding equipment, and in particular to an automated welding device for welding the outer half pipe of a container. Background Art

[0002] The reactor is a reaction vessel with a special structure. Its characteristic is that a tubular jacket with a semicircular cross-section (spirally coiled) is welded on the outer wall of the reactor to form a channel for the circulation of heating or cooling medium.

[0003] At present, since the half-tube needs to adapt to the curved surface of the reactor body, the existing half-tube is wrapped around the reactor in a segmented splicing manner. The half-tube needs to be fitted one by one to the predetermined position of the reactor cylinder or head, which increases the total length of the weld and the welding workload. It relies on manual welding for fixation, which depends on the operating skills and concentration of skilled workers. Long-term operation can easily lead to fatigue, low work efficiency, and poor production efficiency. Summary of the Invention

[0004] In order to improve the problem of poor production efficiency caused by manual welding of half-pipe winding, this technical solution provides an automated welding device for welding the outer half-pipe of a container.

[0005] The purpose of this technical solution is achieved in this way: An automated welding device for welding half pipes outside a container, used for continuously welding the half pipes to the outer peripheral wall of a reactor, comprising a bearing column provided with a sliding drive member; A displacement device is slidably disposed on the supporting column, and the sliding drive member drives the displacement device to slide and drive the welding device to change its height position; A material rolling device, which carries the reactor and is used to drive the reactor to rotate around its own axis; A welding device is installed at the end of the displacement device and is mounted above the material rolling device. The welding device includes a welding actuator and a pressing wheel. The pressing wheel is rotatably arranged relative to the welding actuator. The displacement device drives the welding device to slide. The sliding direction of the welding device is parallel to the rotation axis of the reactor. The pressing wheel presses the half-tube to its outer peripheral wall along the rotation direction of the reactor, so that the welding actuator continuously welds the weld between the half-tube and the reactor.

[0006] Through the above technical solution, an automated welding device for welding the outer half-pipe of a container is normally used. The sliding drive member of the supporting column drives the displacement device to slide vertically along the column to adjust the height of the welding device to adapt to reactors of different diameters. The welding device can be raised during implementation. At this time, the reactor is loaded on the material rolling device, and the welding device is lowered until the pressing wheel is against the outer wall of the reactor. The starting position of the half-pipe to be welded is aligned with the pressing wheel. The material rolling device carries the reactor and drives it to rotate at a constant speed around the axis. The displacement device drives the welding device in a direction parallel to the rotation axis. The area of ​​the half-pipe to be welded is continuously pressed to the specified position of the outer wall of the reactor by the pressing wheel. The welding actuator follows closely behind the pressing wheel and performs continuous automatic welding on the contact line between the pressed half-pipe and the reactor body, eliminating the assembly gap and ensuring uniform weld penetration to reduce leaks and cold welds. The half-pipe is finally spirally wound and fixed to the outer wall of the reactor, replacing the manual segmented welding operation, realizing continuous and automated welding of the half-pipe, and improving production efficiency.

[0007] Preferably, the outer peripheral wall of the pressing wheel is a concave arc surface.

[0008] Through the above technical solution, the pressing wheel matches the outer contour of the half-tube through the concave arc surface, and guides the half-tube to automatically position along the predetermined trajectory of the outer wall of the reactor through arc surface contact, thereby increasing the contact surface, limiting deviation, improving the pressing stability, and improving the welding accuracy.

[0009] Preferably, the displacement device comprises: A base is provided on the supporting column, wherein the base is slidably connected to the supporting column via a roller clamping structure, and the sliding driving member is used to drive the base to slide up and down along the supporting column; a crossbeam, which is slidably arranged on the base, wherein the sliding direction of the crossbeam is perpendicular to the sliding direction of the base, and the welding device is installed at the end of the crossbeam; The sliding driving member is arranged on the base, and the sliding driving member slides on the base to drive the welding device to move.

[0010] Through the above technical solution, the base is vertically lifted and lowered along the bearing column through the roller clamping structure, which can realize stepless adjustment. The vertical lifting adapts to the diameter of the reactor to ensure that the pressing wheel and the welding actuator are always aligned with the half-pipe weld; the sliding drive member drives the crossbeam to slide horizontally along the base to control the axial feed of the welding, and the crossbeam is bounded by the sliding seat. The length of the front section with the welding device is greater than or equal to the rear section, so that the front section droops based on its own gravity and the gravity of the welding device, forcing the pressing wheel to have sufficient force to stably adhere to the surface of the half-pipe, without the need for an additional pressure adjustment structure, reducing the deflection of the half-pipe during rotary welding and improving stability.

[0011] Preferably, a mounting bracket extends from the front end of the crossbeam, and a multi-directional adjustment component is provided between the mounting bracket and the welding device, and the multi-directional adjustment component is used to drive the welding device to change position.

[0012] Through the above technical solution, the multi-directional adjustment component at the extension end of the mounting frame controls the dynamic compensation of the three-dimensional spatial posture of the welding device, adjusts the spatial position of the welding device, and dynamically optimizes the posture.

[0013] Preferably, the multi-directional adjustment assembly includes a sliding seat 1 that slides on the mounting frame, a first driving member, a sliding seat 2 that slides on the sliding seat 1, and a second driving member. The sliding direction of the sliding seat 1 is parallel to the sliding direction of the beam, and the sliding direction is perpendicular to the sliding direction of the sliding seat 2. The first driving member and the second driving member drive the sliding seat 1 and the sliding seat 2 to slide respectively, and the welding device is provided at the lower part of the sliding seat 2.

[0014] Through the above technical solution, compared with the large-range adjustment and positioning of the beam and the mounting seat, the first driving member drives the sliding seat 1 to slide horizontally along the mounting frame. This direction is parallel to the direction of the beam and also corresponds to the axial direction of the rotation of the reactor. The second driving member fine-tunes the sliding seat 1 and the sliding seat 2 within a limited range to achieve a small spatial adjustment, so that the welding gun moves to a more optimal welding posture.

[0015] Preferably, the sliding seat 2 is provided with a welding position adjustment mechanism, and the welding position adjustment mechanism includes an adjustment seat that slides on the sliding seat 2 and an adjustment screw that is threadedly engaged with the adjustment seat. The adjustment screw is rotatably arranged relative to the sliding seat 2. The adjustment seat is connected to the welding actuator, and the rotation of the adjustment screw drives the adjustment seat to slide.

[0016] Through the above technical solution, by rotating the adjusting screw in different directions, the adjusting seat is driven to move in different directions, and the welding actuator is driven by the adjusting seat to change its relative position relative to the pressing wheel, which facilitates the adjustment of the relative position between the two and avoids the welding actuator being unable to reach the weld position when the pressing wheel presses against half the pipe, thereby improving applicability.

[0017] Preferably, the crossbeam is provided with a welder for providing heat or pressure to the welding actuator, and the mounting frame is provided with a barrel for providing solder.

[0018] Through the above technical solution, the welding machine carried by the crossbeam provides welding energy or pressure to the welding actuator through the cable, and the barrel fixed on the mounting frame transports solder to the welding gun through the wire feeding hose.

[0019] Preferably, the material rolling device includes a mounting seat and a plurality of material rolling assemblies symmetrically arranged on the mounting seat, and each of the material rolling assemblies includes: The material-rolling device comprises a mounting seat, a material-rolling assembly and a welding device, wherein the mounting seat is used for mounting the material-rolling assembly and the welding device, the material-rolling assembly is hinged to the mounting seat and comprises a seat body and at least two rollers, the two rollers are respectively rotationally connected to two ends of the seat body and are used for supporting a reaction kettle, and the welding device is used for welding a semi-pipe to the reaction kettle. The rotation driving member is used for driving the two rollers to synchronously rotate.

[0020] Through the above technical scheme, the material-rolling assembly is hinged to the mounting seat through the seat body to form a self-adaptive floating support reaction kettle, the two rollers are arranged at two ends of the seat body to form a V-shaped supporting surface, the supporting surface is fitted to the curvature of the outer wall of the reaction kettle, the rotation driving member drives the two rollers to synchronously rotate through the synchronous gear box, and the reaction kettle is driven to stably and uniformly rotate.

[0021] Preferably, the material-rolling assembly comprises two material-rolling assemblies, and the end of each roller is provided with a gear, so that the two rollers in each material-rolling assembly are driven through the two gears.

[0022] Through the above technical scheme, the rotation driving member drives the two proximal rollers to rotate, the two proximal rollers drive the other two rollers to synchronously rotate through the gears, the four rollers in the two material-rolling assemblies are fitted to the curvature of the outer wall of the self-adaptive reaction kettle to form a double V-shaped supporting surface to build a continuous supporting arc, the supporting span and the contact surface are expanded, and the supporting stability is improved.

[0023] The technical scheme has the following prominent and beneficial technical effects compared with the prior art: 1. The material-rolling device drives the kettle body to uniformly rotate, the pressing wheel presses the semi-pipe to reduce the gap between the semi-pipe and the reaction kettle, the displacement device drives the welding device to axially move the welding mechanism, and the contact line between the semi-pipe in the pressing state and the kettle body is continuously and automatically welded, so that the continuous and automatic welding of the semi-pipe is realized, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a whole structure schematic view of the embodiment Figure 2 It is a whole structure schematic view of the cooperation between the supporting column and the displacement device in the embodiment Figure 3 It is a whole structure schematic view of the welding device in the embodiment Figure 4 It is a whole structure schematic view of the embodiment Figure 3 Another perspective view Figure 5 It is a whole structure schematic view of the welding position adjusting device in the embodiment Figure 6 It is a whole structure schematic view of the material-rolling device in the embodiment Figure 7 It is a whole structure schematic view of the cooperation between the material-rolling assembly and the large reaction kettle in the embodiment

[0025] Figure markings: 1. load-bearing column; 2. displacement device; 21. base; 22. crossbeam; 23. sliding drive member 2; 3. material rolling device; 31. mounting seat; 32. material rolling assembly; 321. material receiving barrel group; 3211. seat body; 3212. roller; 322. rotating drive member; 4. welding device; 41. welding actuator; 42. pressing wheel; 5. welding position adjustment mechanism; 51. adjustment seat; 52. adjustment screw; 6. concave arc surface; 7. mounting frame; multi-directional adjustment assembly; 81. sliding seat 1; 83. sliding seat 2; 10. welding machine; 11. barrel; 12. gear; 100. reactor; 200. half pipe. DETAILED DESCRIPTION

[0026] The specific implementation of the technical solution is further described in detail below with reference to the accompanying drawings.

[0027] Example: See also Figure 1 and Figure 2 , an automated welding device 4 for welding the outer half pipe of a container, comprising a supporting column 1 and a displacement device 2, the lower end of the supporting column 1 can be fixed on the ground, and the upper end thereof can be extended and fixed to other stable structures (such as a roof, an upper floor, a beam, etc.). The supporting column 1 shown in this embodiment can adopt a C-shaped steel structure. The displacement device 2 comprises a base 21, a crossbeam 22 and a sliding drive member 23. The base 21 is sleeved on the supporting column 1, and is slidably connected to the supporting column 1, and the sliding direction is set correspondingly along the column length direction of the supporting column 1, thereby realizing vertical up and down movement; a roller clamping structure is provided between the base 21 and the supporting column 1. The roller clamping structure is a prior art and will not be described in detail here. Two sets of pulleys are symmetrically arranged, and the supporting column 1 is C-shaped. The two sets of pulleys are respectively clamped on the side plates on both sides of the supporting column 1, and free sliding is achieved through rolling contact; the supporting column 1 is provided with a sliding drive component 1, which is preferably a motor, and the output end of the sliding drive component 1 is connected to the base 21, which is used to drive the base 21 to slide; the beam 22 is horizontally mounted on one side of the supporting column 1, and it is slidably installed on the base 21, and the sliding direction is perpendicular to the sliding direction of the base 21. A welding machine 10 is installed on the beam 22 to provide heat or pressure to the welding actuator 41; the sliding drive component 23 is installed on the base 21, and the sliding drive component 23 is preferably a motor, and its output end is connected to the beam 22 for driving it to move back and forth in the horizontal direction.

[0028] See also Figure 3 and Figure 4, also includes a welding device 4, which includes a welding actuator 41 and a pressing wheel 42, and the welding device 4 is installed at the front end of the beam 22. The specific installation method is that a mounting bracket 7 is provided at the front end of the beam 22, one end of which is fixed to the front end of the beam 22, and the other side extends vertically forward, so that the overall shape is L-shaped; a multi-directional adjustment component is provided between the mounting bracket 7 and the welding device 4, and the multi-directional adjustment component includes a sliding seat 1 81, a first driving member, a sliding seat 2 83 and a second driving member. The sliding seat 1 81 is slidably connected to the mounting bracket 7 through a slide rail structure, and its sliding direction is parallel to the sliding direction of the beam 22. The first driving member is installed on the mounting bracket 7. The first driving member is preferably a motor or a cylinder, and its output end is connected to the sliding seat 1 81 for driving the sliding seat 1 81 to slide left and right.

[0029] Sliding seat 2 83 is located on the front side of sliding seat 1 81, and is slidingly connected to sliding seat 1 81 through a slide rail structure, and the sliding direction is perpendicular to the sliding direction of sliding seat 1 81. The above-mentioned welding actuator 41 and the pressing wheel 42 are installed on sliding seat 2 83, and the second driving member is installed on sliding seat 1 81. The second driving member is preferably a motor or a cylinder, and its output end is connected to sliding seat 2 83, which is used to drive sliding seat 2 83 to slide up and down. The welding device 4 can be controlled to move and adjust the position along two perpendicular axes through the multi-directional adjustment component.

[0030] A barrel 11 is provided on the mounting frame 7, and solder can be stored in the barrel 11. The solder is melted by the welding machine 10 and supplied to the welding actuator 41. The pressing wheel 42 is rotatably connected relative to the sliding seat 83, and its outer peripheral wall is a concave arc surface 6, so that the outer peripheral wall of the pressing wheel 42 along the rotation direction is arranged in an annular groove, which is adapted to the shape of the half pipe 200. The position of the pressing wheel 42 is closer to the crossbeam 22 relative to the welding actuator 41.

[0031] See also Figure 5 The sliding seat 83 is provided with a welding position adjustment mechanism 5, which includes an adjusting seat 51 and an adjusting screw 52. The adjusting seat 51 is slidably connected to the sliding seat 83, and its sliding direction is parallel to the sliding direction of the sliding seat 2. The adjusting screw 52 is threadedly matched with the adjusting seat 51, and the adjusting screw 52 is rotatably arranged relative to the sliding seat 83. In this embodiment, the end of the adjusting screw 52 is provided with a handle for easy hand operation, and the front end of the adjusting seat 51 is connected to the welding actuator 41. By rotating the adjusting screw 52 in different directions, the adjusting seat 51 is driven to move in different directions, and then the welding actuator 41 is driven to change its relative position relative to the pressing wheel 42, so as to facilitate adjustment of the relative position between the two, and avoid the welding actuator 41 being unable to touch the weld position when the pressing wheel 42 presses the half pipe 200, thereby further improving applicability.

[0032] See also Figure 1 、 Figure 6 and Figure 7Further comprising a material rolling device 3, the material rolling device 3 comprises a mounting base 31 and a plurality of rolling material assemblies 32 symmetrically arranged on the mounting base 31, and two rolling material assemblies 32 are arranged on each mounting base 31 in the embodiment. Figure 7 As shown in the drawings, each rolling material assembly 32 comprises a material receiving cylinder group 321 and a rotating driving member 322, and the material receiving cylinder group 321 comprises a seat body 3211 and four rolling cylinders 3212. The seat body 3211 is substantially V-shaped, and the V-shaped openings of the seat bodies 3211 in the two rolling material assemblies 32 face each other. The seat body 3211 is hinged to the mounting base 31, the hinging axes of the two seat bodies 3211 are parallel, the two rolling cylinders 3212 are rotatably connected to the corresponding seat bodies 3211, the rotating axes of the rolling cylinders 3212 are parallel to the hinging axes of the seat bodies 3211, the end portions of each rolling cylinder 3212 are provided with gears 12, the gears 12 at the end portions of the two rolling cylinders 3212 in each seat body 3211 are meshed with each other to realize transmission, and the rotating driving member 322 is preferably a motor which is fixed to the side portion of the mounting base 31. The rotating driving member 322 drives the two rolling cylinders 3212 at the proximal ends on the two sides through a transmission structure, the two rolling cylinders 3212 on the two sides drive the two rolling cylinders 3212 at the distal ends to rotate synchronously through the gear 12 meshing structure, and the two rolling cylinders 3212 are arranged to support the reaction kettle 100. The seat body 3211 is rotated to be fitted to the arc surface outer wall of the reaction kettle 100, and the rotation of the rolling cylinder 3212 can drive the reaction kettle 100 to rotate along the axial direction of the reaction kettle 100. Figure 6 As shown in the drawings, each rolling material assembly 32 comprises a material receiving cylinder group 321 and a rotating driving member 322, and the material receiving cylinder group 321 comprises a seat body 3211 and four rolling cylinders 3212. The seat body 3211 is substantially V-shaped, and the V-shaped openings of the seat bodies 3211 in the two rolling material assemblies 32 face each other. The seat body 3211 is hinged to the mounting base 31, the hinging axes of the two seat bodies 3211 are parallel, the two rolling cylinders 3212 are rotatably connected to the corresponding seat bodies 3211, the rotating axes of the rolling cylinders 3212 are parallel to the hinging axes of the seat bodies 3211, the end portions of each rolling cylinder 3212 are provided with gears 12, the gears 12 at the end portions of the two rolling cylinders 3212 in each seat body 3211 are meshed with each other to realize transmission, and the rotating driving member 322 is preferably a motor which is fixed to the side portion of the mounting base 31. The rotating driving member 322 drives the two rolling cylinders 3212 at the proximal ends on the two sides through a transmission structure, the two rolling cylinders 3212 on the two sides drive the two rolling cylinders 3212 at the distal ends to rotate synchronously through the gear 12 meshing structure, and the two rolling cylinders 3212 are arranged to support the reaction kettle 100. The seat body 3211 is rotated to be fitted to the arc surface outer wall of the reaction kettle 100, and the rotation of the rolling cylinder 3212 can drive the reaction kettle 100 to rotate along the axial direction of the reaction kettle 100.

[0033] The specific working process of the scheme is as follows: The present technical solution is to place the reactor 100 on the material rolling device 3, and the sliding drive member of the supporting column 1 drives the displacement device 2 to slide vertically along the column, so that the welding device 4 is close to the reactor 100 until the pressing wheel 42 is against the outer wall of the reactor 100. At this time, the pressing wheel 42 needs to be at the starting point of the welding position and press the starting end of the half pipe 200 on the outer wall of the reactor 100. The rotating drive member 322 drives the multiple rollers 3212 to rotate synchronously, so that the carried reactor 100 is driven to rotate at a uniform speed around the axis, and cooperates with The displacement device 2 drives the welding device 4 to move in a direction parallel to the rotation axis. The area of ​​the half-tube 200 to be welded is continuously pressed to the specified position of the outer wall of the reactor 100 by the pressing wheel 42. The welding actuator 41 follows closely behind the pressing wheel 42 and performs continuous automatic welding on the contact line between the pressed half-tube 200 and the reactor body to eliminate the assembly gap and ensure uniform weld penetration to reduce leaking welds and cold welds. The half-tube 200 is finally spirally wound and fixed to the outer wall of the reactor 100, realizing continuous and automatic welding of the half-tube 200 and improving production efficiency.

[0034] The above shows and describes the basic principles and main features of the present technical solution and the advantages of the present technical solution. Those skilled in the art should understand that the present technical solution is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present technical solution. Various changes and improvements may be made to the present technical solution without departing from the spirit and scope of the present technical solution. Such changes and improvements fall within the scope of the present technical solution for which protection is sought. The scope of protection claimed by the present technical solution is defined by the appended claims and their equivalents.

Claims

1. An automated welding device for welding half pipes outside a container, used for continuously welding half pipes to the outer peripheral wall of a reactor (100), characterized in that: include: A bearing column (1), wherein the bearing column (1) is provided with a sliding drive member; A displacement device (2) is slidably arranged on the supporting column (1), and the sliding driving member drives the displacement device (2) to slide and drive the welding device to change its height position; A material rolling device (3) carrying a reaction kettle (100), wherein the material rolling device (3) is used to drive the reaction kettle (100) to rotate around its own axis; A welding device (4) is installed at the end of the displacement device (2) and is mounted above the material rolling device (3). The welding device (4) includes a welding actuator (41) and a pressing wheel (42). The pressing wheel (42) is rotatably arranged relative to the welding actuator (41). The displacement device (2) drives the welding device (4) to slide. The sliding direction of the welding device (4) is parallel to the rotation axis of the reactor (100). The pressing wheel (42) presses the half pipe to the outer peripheral wall of the reactor (100) along the rotation direction of the reactor (100), so that the welding actuator (41) continuously welds the weld between the half pipe and the reactor (100).

2. The automated welding device for welding outer half pipes of a container according to claim 1, characterized in that: The outer peripheral wall of the pressing wheel (42) is a concave arc surface (6).

3. The automated welding device for welding outer half pipes of a container according to claim 1, characterized in that: The displacement device (2) comprises: A base (21) is provided on the bearing column (1), the base (21) is slidably connected to the bearing column (1) via a roller clamping structure, and the sliding drive member is used to drive the base (21) to slide up and down along the bearing column (1); A crossbeam (22) is slidably arranged on the base (21), the sliding direction of the crossbeam (22) being perpendicular to the sliding direction of the base (21), and the welding device (4) is installed at the end of the crossbeam (22); A second sliding driving member (23) is provided on the base (21), and the second sliding driving member (23) drives the crossbeam (22) to slide, thereby driving the welding device (4) to move.

4. The automated welding device for welding outer half pipes of a container according to claim 3, characterized in that: A mounting frame (7) extends from the front end of the crossbeam (22), and a multi-directional adjustment component is provided between the mounting frame (7) and the welding device (4), and the multi-directional adjustment component is used to drive the welding device (4) to change position.

5. The automated welding device for welding outer half pipes of a container according to claim 4, characterized in that: The multi-directional adjustment component includes: A sliding seat (81) slides on the mounting frame (7), wherein the sliding direction of the sliding seat (81) is parallel to the sliding direction of the crossbeam (22); A first driving member, which is arranged on the mounting frame (7), and is used to drive the sliding seat (81) to slide; A second sliding seat (83) slides on the first sliding seat (81), and the sliding direction of the second sliding seat (83) is perpendicular to the sliding direction of the first sliding seat (81); A second driving member is provided on the sliding seat 1 (81), and the second driving member is used to drive the sliding seat 2 (83) to slide. The lower part of the sliding seat 2 (83) is provided with the welding device (4).

6. The automated welding device for welding outer half pipes of a container according to claim 5, characterized in that: The sliding seat (83) is provided with a welding position adjustment mechanism (5), and the welding position adjustment mechanism (5) includes an adjustment seat (51) that slides on the sliding seat (83) and an adjustment screw (52) that is threadedly engaged with the adjustment seat (51). The adjustment screw is rotatably arranged relative to the sliding seat (83). The adjustment seat (51) is connected to the welding actuator (41), and the adjustment screw (52) rotates to drive the adjustment seat (51) to slide.

7. The automated welding device for welding outer half pipes of a container according to claim 4, characterized in that: The crossbeam (22) is provided with a welder (10) for providing heat or pressure to the welding actuator (41), and the mounting frame (7) is provided with a barrel (11) for providing solder.

8. The automated welding device for welding outer half pipes of a container according to claim 1, characterized in that: The material rolling device (3) comprises a mounting seat (31) and a plurality of material rolling assemblies (32) symmetrically arranged on the mounting seat (31), and each of the material rolling assemblies (32) comprises: A material receiving cylinder group (321) is hinged to the mounting seat (31), and the material receiving cylinder group (321) includes a base (3211) hinged to the mounting seat (31) and at least two rollers (3212), the two rollers (3212) being rotatably connected to the two ends of the base (3211) and used to support the reaction kettle (100); The output end of the rotating driving member (322) is used to drive the two rollers (3212) to rotate synchronously.

9. The automated welding device for welding outer half pipes of a container according to claim 8, characterized in that: The roller assembly (32) includes two receiving cylinder groups (321), and the ends of the rollers (3212) are each provided with a gear (12), so that the two rollers (3212) in each receiving cylinder group (321) are meshed with the two gears (12) to achieve transmission.

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