Spiral welding device for periphery of cylindrical object

Abstract

The utility model discloses a barrel-shaped object periphery spiral welding device which comprises a rotating mechanism, a welding mechanism and a spray cooling mechanism, the rotating mechanism is used for vertically placing a barrel-shaped object, and the welding mechanism is arranged on one side of the rotating mechanism in a lifting mode. The welding device is used for vertically ascending or vertically descending and welding the spiral object and the cylindrical object in the spiral direction of the spiral object. The spiral welding device for the periphery of the cylindrical object has the advantages that positioning is convenient and accurate, the welding efficiency and quality can be improved, and cooling liquid can be conveniently collected.

Description

Technical Field

[0001] This utility model relates to the technical field of food and pharmaceutical packaging machinery and equipment, specifically to a spiral welding device for the outer circumference of a cylindrical object. Background Technology

[0002] Bioengineering tank jackets typically consist of multiple sizes of semi-tubes, which are rolled into a spiral shape and then welded to the outer wall of the tank. Steam or hot water is usually introduced into the inside of the semi-tubes to regulate the temperature of the tank during pharmaceutical or chemical processes.

[0003] The welding of spirals and tanks currently employed typically utilizes vertically rotating welding devices, such as the automatic tracking welding equipment for heat exchange coils disclosed in Chinese patent document application number 201310149541.6, the manufacturing method and tool for embossing tools disclosed in German patent document application number DE10202110114, and the manufacturing method and tool for embossing tools disclosed in Polish patent document application number PL2020433821. These methods involve welding cylindrical objects (such as tanks) while simultaneously rotating them vertically. However, this process has several drawbacks. First, when welding spirals to the outside of cylindrical objects, the horizontal placement of the spiral (with its central axis horizontal) results in significant runout, leading to poor welding quality and performance. Second, the horizontal placement of the cylindrical object requires positioning at both ends, which is inconvenient, difficult, and prone to inaccurate positioning, resulting in poor welding. Third, the spray cooling mechanism needs to extend horizontally into the tank for spray cooling, which is inconvenient to set up and makes coolant collection difficult.

[0004] Existing welding devices that rotate vertically (horizontal welding devices), such as the automatic tracking welding equipment for heat exchange coils disclosed in application number 201310149541.6, involve first welding the end cap to the tank body, then placing the tank body horizontally (with the central axis horizontal) on a tank rotating device. The rotating device then drives the tank body to rotate vertically, and the welding device welds the spiral half-pipe to the tank body. However, this method has the following drawbacks: 1) It can only perform vertical rotation welding on the spiral half-pipe and the tank body. The horizontal placement of the tank requires positioning at both ends, which is inconvenient, difficult to position, and prone to inaccurate positioning, resulting in poor welding quality; 2) The spray cooling mechanism needs to extend horizontally into the tank body for spray cooling, which is inconvenient to set up and makes coolant collection difficult. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a spiral welding device for the outer circumference of cylindrical objects that is convenient and accurate in positioning, can improve welding efficiency and quality, and facilitates the collection of coolant.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A spiral welding device for the outer circumference of a cylindrical object includes a rotating mechanism, a welding mechanism, and a spray cooling mechanism. The rotating mechanism is used to fix and rotate the cylindrical object, which is vertical or inclined relative to the ground plane, around its central axis. The welding mechanism is raised and lowered on one side of the rotating mechanism and is used to move up and down along the axial direction of the cylindrical object when it rotates, and to weld the spiral object and the cylindrical object along the spiral direction of the spiral object. The spray cooling mechanism is fixedly installed and is used to spray coolant onto the inner wall of the cylindrical object.

[0008] As a further improvement to the above technical solution:

[0009] The rotating mechanism includes a support platform and a rotating drive assembly for driving the support platform to rotate. The support platform is provided with a fixing mechanism for fixing cylindrical objects, and the nozzle of the spray cooling mechanism is located in the middle of the support platform.

[0010] A liquid collection tank is provided below the support platform, and the vertical projection of the support platform is located in the liquid collection tank.

[0011] The spiral welding device for the outer periphery of the cylindrical object also includes a lifting mechanism located on one side of the rotating mechanism, and the welding mechanism is located on the lifting mechanism.

[0012] The spiral welding device for the outer periphery of the cylindrical object also includes a protective gas spraying mechanism, which is used to spray protective gas onto the welding area during welding.

[0013] The spiral welding device for the outer periphery of the cylindrical object also includes a spray cooling mechanism, which is used to spray a cooling medium onto the welding area during welding.

[0014] Compared with the prior art, the advantages of this utility model are:

[0015] This utility model discloses a spiral welding device for the outer circumference of a cylindrical object. Firstly, the cylindrical object is fixed vertically or inclined relative to the ground plane on a rotating mechanism, and the spiral object is also fixed vertically or inclined relative to the ground plane on the rotating mechanism. During rotational welding, there is minimal vibration, resulting in high welding effect and quality. Furthermore, because the welding path is arc-shaped, the molten slurry flows downwards under gravity, resulting in less and smoother slurry at the top, leading to better and more aesthetically pleasing weld quality. Secondly, the cylindrical object, placed vertically or inclined relative to the ground plane, is fixed at its bottom end by the rotating mechanism. For horizontal placement, both ends need to be positioned, making operation convenient, positioning easy, and accurate. Thirdly, because the cylindrical object is vertically or inclined relative to the ground plane… Alternatively, the cylindrical object can be placed at an angle for welding. The spray cooling mechanism can spray from the top downwards or the bottom upwards, and the coolant can flow from top to bottom along the inner wall of the cylindrical object, achieving the effect of overall flow cooling of the cylindrical object. This not only improves the cooling effect but also facilitates the collection of coolant at the bottom of the cylindrical object and makes it easier to set up the spray cooling mechanism (unlike horizontally placed cylindrical objects, which require a large area of ​​nozzles inside the cylindrical object for overall cooling). Fourthly, by coordinating the rotational motion of the rotating mechanism with the lifting motion of the welding mechanism, it is possible to weld spiral and cylindrical objects along the spiral direction of the spiral object. The overall structural design is ingenious, improving both welding efficiency and welding quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of the spiral welding device for the outer circumference of a cylindrical object according to this utility model.

[0017] Figure 2 This is a top view schematic diagram of the spiral welding device for the outer circumference of a cylindrical object according to this utility model.

[0018] Figure 3 This is another structural schematic diagram of the spiral welding device for the outer circumference of the cylindrical object of this utility model.

[0019] The labels in the diagram represent:

[0020] 1. Rotating mechanism; 11. Support platform; 12. Rotating drive assembly; 2. Welding mechanism; 3. Spray cooling mechanism; 4. Liquid collection tank; 5. Fixing mechanism; 6. Lifting mechanism; 7. Protective gas spraying mechanism; 8. Spray cooling mechanism; 9. Cylindrical object; 91. Spiral object. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Example 1:

[0026] Figure 1 and Figure 2 This invention illustrates an embodiment of the spiral welding device for the outer circumference of a cylindrical object. The device includes a rotating mechanism 1, a welding mechanism 2, and a spray cooling mechanism 3. The rotating mechanism 1 is used to fix and rotate the cylindrical object 9, which is vertical or inclined relative to the ground plane, around its central axis. The welding mechanism 2 is vertically and vertically disposed on one side of the rotating mechanism 1, and is used to move vertically and vertically along the axial direction of the cylindrical object 9 when it rotates, and to weld the spiral object 91 and the cylindrical object 9 along the spiral direction of the spiral object 91. The spray cooling mechanism 3 is fixedly disposed and is used to spray coolant onto the inner wall of the cylindrical object 9.

[0027] The process of using this spiral welding device for the outer periphery of a cylindrical object is as follows: First, the cylindrical object 9 with a spiral object 91 on its outer periphery is fixed vertically or inclined relative to the ground plane on the rotating mechanism 1; second, the rotating mechanism 1 drives the cylindrical object 9 to rotate around the central axis of the cylindrical object 9; the welding mechanism 2 moves up and down along the axial direction of the cylindrical object 9, and welds the spiral object 91 and the cylindrical object 9 along the spiral direction of the spiral object 91; the spray cooling mechanism 3 sprays coolant onto the inner wall of the cylindrical object 9.

[0028] This spiral welding device for the outer circumference of a cylindrical object has several advantages. First, the cylindrical object 9 is fixed vertically or inclinedly to the rotating mechanism 1 relative to the ground plane, and the spiral object 91 is also fixed vertically or inclinedly to the rotating mechanism 1 relative to the ground plane (the central axes of the cylindrical object 9 and the spiral object 91 are vertically or inclined relative to the ground plane). During rotating welding, there is minimal vibration, resulting in high welding effect and quality. Furthermore, because the welding path is arc-shaped, the molten slurry flows downwards under gravity, resulting in less and smoother slurry at the top, leading to better and more aesthetically pleasing weld quality. Second, the cylindrical object 9, which is vertically or inclined relative to the ground plane, is fixed at its bottom end by the rotating mechanism 1. When placed horizontally, it requires positioning at both ends, making operation convenient, positioning less difficult, and easier to accurately position. Third, because the cylindrical object… 9 is placed vertically or inclined relative to the ground plane for welding. The spray cooling mechanism 3 can spray from the top of the cylindrical object 9 downward or from the bottom upward. The coolant can flow from top to bottom along the inner wall of the cylindrical object 9, achieving the effect of overall flow cooling of the cylindrical object 9. This not only improves the cooling effect, but also facilitates the collection of coolant below the cylindrical object 9. It also facilitates the setting of the spray cooling mechanism 3 (unlike the horizontally placed cylindrical object 9, which requires a large area of ​​nozzles inside the cylindrical object 9 for overall cooling). Fourthly, by coordinating the rotational movement of the rotating mechanism 1 with the lifting movement of the welding mechanism 2, the spiral object 91 and the cylindrical object 9 can be welded along the spiral direction of the spiral object 91. The overall structural design is ingenious, which improves both welding efficiency and welding quality.

[0029] Furthermore, in this embodiment, the rotating mechanism 1 includes a support platform 11 and a rotating drive assembly 12 for driving the support platform 11 to rotate. The support platform 11 is provided with a fixing mechanism 5 for fixing the cylindrical object 9, and the nozzle of the spray cooling mechanism 3 is located in the middle of the support platform 11. The support platform 11 is used to place the cylindrical object 9 vertically or inclined relative to the ground plane, and the fixing mechanism 5 is used to fix the bottom end of the cylindrical object 9. The nozzle of the spray cooling mechanism 3 is located in the middle of the support platform 11, so that the spraying direction of the spray cooling mechanism 3 is upward, and the upward sprayed coolant has a gentler contact with the inner wall of the cylindrical object 9, further improving the cooling effect. The rotating drive assembly 12 is used to drive the support platform 11 to rotate around the central axis of the cylindrical object 9.

[0030] Furthermore, in this embodiment, a liquid collection tank 4 is provided below the support platform 11, and the vertical projection of the support platform 11 is located within the liquid collection tank 4. The liquid collection tank 4 is located below the support platform 11, and the coolant sprayed by the spray cooling mechanism 3 falls or flows down along the inner wall of the cylindrical object 9 into the liquid collection tank 4 to achieve coolant collection.

[0031] Furthermore, in this embodiment, the fixing mechanism 5 includes a triangular chuck. The triangular chuck secures the bottom end of the cylindrical object 9, providing convenient operation and stable, accurate positioning. Of course, in other embodiments, the fixing mechanism 5 can also be configured to fix the cylindrical object 9 at a specified position in the axial direction inside the cylindrical object 9, such as fixing the lower, middle, and / or upper part of the cylindrical object 9. Internal fixing does not affect external welding.

[0032] Furthermore, in this embodiment, the spiral welding device for the outer periphery of the cylindrical object also includes a lifting mechanism 6 disposed on one side of the rotating mechanism 1, and the welding mechanism 2 is disposed on the lifting mechanism 6. The lifting mechanism 6 is used to drive the welding mechanism 2 to move vertically upward or downward.

[0033] Furthermore, in this embodiment, the spiral welding device for the outer periphery of the cylindrical object also includes a protective gas spraying mechanism 7, which is used to spray protective gas onto the welding area during welding by the welding mechanism 2. During welding, the protective gas spraying mechanism 7 sprays protective gas onto the welding area to provide timely gas protection and prevent oxidation of the welding area.

[0034] Furthermore, in this embodiment, the spiral welding device for the outer periphery of the cylindrical object also includes a spray cooling mechanism 8, which is used to spray a cooling medium onto the weld area during welding by the welding mechanism 2. During welding, to accelerate cooling, a cooling medium can be sprayed onto the weld area by the spray cooling mechanism 8. The spray cooling mechanism 8 can be activated as needed; of course, in other embodiments, the spray cooling mechanism 8 may not be provided. Preferably, the spray cooling mechanism 8 is located above the rotating mechanism 1 (support platform 11).

[0035] Furthermore, in this embodiment, the rotating mechanism 1 and the welding mechanism 2 can be connected to a control module. The control module adopts corresponding rotation speed and vertical movement speed according to the helix angle of the helical object 91 and the outer diameter of the cylindrical object 9, so as to meet the welding requirements of the helical object 91 with different helix angles and the cylindrical object 9 with different outer diameters.

[0036] Example 2:

[0037] Figure 3Another embodiment of the spiral welding device for the outer periphery of cylindrical objects of this utility model is shown. The structure of the spiral welding device for the outer periphery of cylindrical objects in this embodiment is basically the same as that in embodiment two, except that the spray cooling mechanism 8 and the protective gas spraying mechanism 7 are not provided.

[0038] Example 3:

[0039] A welding method for the spiral welding device for the outer circumference of a cylindrical object according to Embodiment 1 or Embodiment 2 includes the following steps:

[0040] S1. A cylindrical object 9 with a spiral object 91 on its outer periphery is fixed vertically or inclinedly to the rotating mechanism 1 relative to the ground plane;

[0041] S2, Rotating mechanism 1 drives cylindrical object 9 to rotate around the central axis of cylindrical object 9 (i.e., cylindrical object 9); Welding mechanism 2 moves up and down along the axial direction of cylindrical object 9, and welds spiral object 91 and cylindrical object 9 along the spiral direction of spiral object 91; Spray cooling mechanism 3 sprays coolant onto the inner wall of cylindrical object 9.

[0042] The spiral welding method for the outer circumference of this cylindrical object has two aspects. First, the cylindrical object 9 is fixed vertically or inclinedly to the rotating mechanism 1 relative to the ground plane, and the spiral object 91 is also fixed vertically or inclinedly to the rotating mechanism 1 relative to the ground plane (the central axes of the cylindrical object 9 and the spiral object 91 are vertically or inclined relative to the ground plane), and are relatively horizontally arranged (the central axes of the cylindrical object 9 and the spiral object 91 are parallel relative to the ground plane). This results in minimal vibration during rotational welding, high welding effect and quality. Furthermore, because the welding path is arc-shaped, the molten slurry flows downwards under gravity, resulting in less and smoother slurry at the top, leading to better and more aesthetically pleasing weld quality. Second, the cylindrical object 9, which is placed vertically or inclined relative to the ground plane, can be fixed only at its bottom end. Firstly, the cylindrical object 9 is placed vertically or at an angle relative to the ground plane for welding. The spray cooling mechanism 3 can spray from the top of the cylindrical object 9 downwards or from the bottom upwards. The coolant can flow from top to bottom along the inner wall of the cylindrical object 9, achieving the effect of overall flow cooling of the cylindrical object 9. This not only improves the cooling effect but also facilitates the collection of coolant below the cylindrical object 9 and makes it easier to set up the spray cooling mechanism 3 (unlike the horizontally placed cylindrical object 9, which requires a large area of ​​nozzles inside the cylindrical object 9 for overall cooling). Secondly, the overall process design is reasonable, which improves both welding efficiency and welding quality.

[0043] Furthermore, in this embodiment, the spraying direction of the spray cooling mechanism 3 is upward, and the upward sprayed coolant makes a gentler contact with the inner wall of the cylindrical object 9, further improving the cooling effect.

[0044] Furthermore, in this embodiment, in S2, the protective gas spraying mechanism 7 sprays protective gas onto the weld joint. During welding, the protective gas spraying mechanism 7 sprays protective gas onto the weld joint to provide timely gas protection and prevent oxidation of the weld joint.

[0045] Furthermore, in this embodiment, step S3 is included: flipping and fixing the cylindrical object 9 on the rotating mechanism 1, and repeating S2. In this way, both spiral seams between the spiral object 91 and the cylindrical object 9 are welded, improving the overall connection strength.

[0046] Preferably, in S2, the welding mechanism 2 uses a lifting and lowering motion along the axial direction of the cylindrical object 9 to perform welding. Since the welding path is arc-shaped, the molten slurry that has just been welded flows downward under gravity. The welding is performed by relatively horizontal movement. When welding by lifting and lowering motion, molten slurry is less likely to accumulate between the welding points, resulting in a better welding effect.

[0047] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A spiral welding device for the outer circumference of a cylindrical object, characterized in that: The device includes a rotating mechanism (1), a welding mechanism (2), and a spray cooling mechanism (3). The rotating mechanism (1) is used to fix and rotate the cylindrical object (9) which is vertical or inclined relative to the ground plane around the central axis of the cylindrical object (9). The welding mechanism (2) is raised and lowered on one side of the rotating mechanism (1) and is used to move up and down along the axial direction of the cylindrical object (9) when the cylindrical object (9) rotates, and to weld the spiral object (91) and the cylindrical object (9) along the spiral direction of the spiral object (91). The spray cooling mechanism (3) is fixedly set and is used to spray coolant onto the inner wall of the cylindrical object (9).

2. The spiral welding device for the outer circumference of a cylindrical object according to claim 1, characterized in that: The rotating mechanism (1) includes a support platform (11) and a rotating drive assembly (12) for driving the support platform (11) to rotate. The support platform (11) is provided with a fixing mechanism (5) for fixing the cylindrical object (9). The nozzle of the spray cooling mechanism (3) is located in the middle of the support platform (11).

3. The spiral welding device for the outer circumference of a cylindrical object according to claim 2, characterized in that: A liquid collection tank (4) is provided below the support platform (11), and the vertical projection of the support platform (11) is located in the liquid collection tank (4).

4. The spiral welding device for the outer circumference of a cylindrical object according to any one of claims 1 to 3, characterized in that: The spiral welding device for the outer periphery of the cylindrical object also includes a lifting mechanism (6) located on one side of the rotating mechanism (1), and the welding mechanism (2) is located on the lifting mechanism (6).

5. The spiral welding device for the outer circumference of a cylindrical object according to any one of claims 1 to 3, characterized in that: The spiral welding device for the outer periphery of the cylindrical object also includes a protective gas spraying mechanism (7), which is used to spray protective gas onto the welding area when the welding mechanism (2) is welding.

6. The spiral welding device for the outer circumference of a cylindrical object according to any one of claims 1 to 3, characterized in that: The spiral welding device for the outer periphery of the cylindrical object also includes a spray cooling mechanism (8), which is used to spray cooling medium onto the welding area when the welding mechanism (2) is welding.

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