Metal material welding device for decoration

Abstract

The invention discloses a metal material welding device for decoration, which belongs to metal welding devices and comprises a base, a pipeline material is placed at the top end of the base, a welding mechanism is arranged at the top end of the base and comprises a welding frame mounted at the top end of the base, and the top end of the base is connected with the welding frame through a mounted welding box. A welding device body is fixedly installed at the top end of the welding frame, the output end of the welding device body is connected with an electric transmission assembly, an annular frame is fixedly installed at the top end of the base, and a pipeline material is located in the annular frame. The exhaust plate on the surface of the arc-shaped pressing plate can effectively exhaust gas generated at the spot welding position, the defects of gas holes and the like caused by gas residues are avoided, the firmness of the welding position is remarkably improved, and the welding quality of metal pipeline materials is guaranteed.

Description

Technical Field

[0001] This invention relates to metal welding apparatus, and more particularly to a metal material welding apparatus for decorative purposes. Background Technology

[0002] Decoration and renovation refers to the activities of beautifying and decorating indoor or outdoor spaces. This includes the design, decoration, and arrangement of walls, floors, ceilings, furniture, lighting fixtures, curtains, etc., to create a comfortable, beautiful, and practical living or working environment. In decoration and renovation, many metal components and parts require welding, especially metal pipe materials, where the requirements for welding quality and efficiency are constantly increasing. During the welding process of metal pipe materials, gases are easily generated at the welding points. If these gases cannot be effectively and promptly discharged, defects such as porosity will appear at the weld points, seriously affecting the welding quality. Existing welding equipment lacks an effective venting mechanism and cannot pressurize and vent the spot weld areas, making it difficult to expel the gases generated during welding, thus affecting the weld's strength. Summary of the Invention

[0003] The purpose of this invention is to provide a metal material welding device for decoration and renovation, in order to solve the problem mentioned in the background art that the welding device lacks an effective exhaust mechanism, cannot pressurize and exhaust the spot welding area, making it difficult to expel the gas generated during the welding process, thus affecting the strength of the weld.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a metal material welding device for decoration and renovation, comprising a base, a pipe material placed at the top of the base, a welding mechanism provided at the top of the base, the welding mechanism including a welding frame installed at the top of the base, the top of the base being connected to the welding frame via a welding box, a welding equipment body fixedly installed at the top of the welding frame, an electrical transmission component connected to the output end of the welding equipment body, an annular frame fixedly installed at the top of the base, with the pipe material located inside the annular frame, a spot welding pipe connected to the output end of the electrical transmission component installed on the surface of the annular frame, an exhaust mechanism provided on the inner surface of the annular frame, the exhaust mechanism including a telescopic member installed on the inner wall of the annular frame, and an arc-shaped pressure plate rotatably installed at the output end of the telescopic member for exhausting air from the pressurized spot welding area.

[0005] As a preferred embodiment of the present invention, the surface of the annular frame is provided with an adsorption component, the adsorption component includes a cylinder installed on the surface of the arc-shaped pressure plate, multiple carbon plates are fixedly installed inside the cylinder, and multiple exhaust plates are connected to the surface of the arc-shaped pressure plate, and the exhaust plates are connected to the inside of the cylinder.

[0006] As a preferred embodiment of the present invention, a heating box is fixedly installed on the surface of the ring frame, the output end of the heating box is connected to the bottom end of the cylinder through a heat outlet pipe, the input end of the heating box is connected to an exhaust plate through an exhaust pipe, and multiple heat-conducting rods are fixedly installed inside the cylinder.

[0007] As a preferred embodiment of the present invention, the top of the cylinder is connected to a limiting pipe via an air outlet pipe, and a plurality of hot nozzles for preheating the welding parts are connected to the limiting pipe near the spot welding position of the spot welding pipe.

[0008] As a preferred embodiment of the present invention, three arc-shaped pressure plates are provided, and a top ring is fixedly installed between the three arc-shaped pressure plates.

[0009] As a preferred embodiment of the present invention, a protective ring is fixedly installed on the outer surface of the ring frame, a first gear is fixedly installed inside the protective ring, a second motor is fixedly installed on the surface of the welding frame, a second gear is fixedly installed on the output shaft of the second motor, and the first gear meshes with the second gear.

[0010] As a preferred embodiment of the present invention, the electrical transmission component includes an output tube rotatably mounted on the top of a ring frame, and the output tube is connected to the output end of the welding equipment body. A conductive ring is installed inside the output tube, and the cross-section of the conductive ring is cross-shaped. Multiple dispersed blocks are fixedly installed on the outer surface of the conductive ring.

[0011] As a preferred embodiment of the present invention, a take-up reel is rotatably mounted at the bottom end of the ring frame, a welding wire is wound on the surface of the take-up reel, a filter assembly is mounted on the surface of the ring frame, and the welding wire slides through the filter assembly and is welded to the spot welding pipe.

[0012] As a preferred embodiment of the present invention, the filter assembly includes a filter box installed at the bottom of the annular frame. A plurality of guide wheels for guiding the welding wire are rotatably installed inside the filter box. A cavity composed of two partitions is fixedly installed inside the filter box. A cleaning plate for cleaning the welding wire is fixedly installed on the inner surface of the partitions in the cavity. An electrostatic adsorption plate for adsorbing impurities and dust is fixedly installed on the surface of the partitions. An electrostatic generator is fixedly installed on the inner wall of the filter box.

[0013] As a preferred embodiment of the present invention, a limiting mechanism is provided at the top of the base. The limiting mechanism includes a mounting frame installed at the top of the base. A first motor is fixedly installed at the top of the mounting frame. A drive rod is fixedly installed on the output shaft of the first motor. Two support plates are installed on the surface of the drive rod. Clamping plates are provided at both ends of the support plates. Friction rods for limiting the pipe material are fixedly installed at both ends of the clamping plates.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention incorporates an exhaust mechanism. The telescopic component drives the arc-shaped pressure plate to pressurize and exhaust the spot welding area. Furthermore, during the welding process, the exhaust plate on the surface of the arc-shaped pressure plate can effectively expel the gas generated at the spot welding area, avoiding defects such as porosity caused by gas residue. This significantly improves the strength of the welded area and ensures the welding quality of metal pipe materials.

[0015] 2. This invention features an adsorption assembly on the surface of a ring frame and multiple carbon plates installed inside a cylinder on an arc-shaped pressure plate, which is connected to an exhaust plate. As a result, impurities and dust generated during welding enter the cylinder through the exhaust plate and are adsorbed by the multiple carbon plates, effectively reducing the adhesion of impurities to the welding area. This makes the surface of the welded pipe material cleaner, meeting the high requirements of decoration and renovation for the appearance of materials, while also reducing the harmful gases generated during welding that could damage the environment.

[0016] 3. This invention connects a heating box to a cylinder, and a heat nozzle is installed on a limiting pipe connected to the air outlet at the top of the cylinder. This allows for preheating of the welding area. At the same time, the heat-conducting rod inside the cylinder can evenly transfer heat, ensuring that the welding area reaches a suitable temperature, reducing welding stress, preventing cracks, ensuring stable welding process, and improving welding quality.

[0017] 4. This invention enhances conductivity and stability by setting up an electrical transmission component and providing a cross-shaped conductive ring and multiple dispersion blocks inside the output tube, ensuring stable transmission of welding current. At the same time, the filter component set at the bottom of the ring frame guides, cleans, and adsorbs impurities and dust on the welding wire through guide wheels, cleaning plates, and electrostatic adsorption plates, ensuring welding wire quality, reducing welding spatter, and improving welding reliability and stability.

[0018] 5. This invention uses a first motor to drive a drive rod, which in turn drives multiple clamping plates to rotate and hold the pipe material. The friction rods on the clamping plates limit the pipe material. The clamping force and position can be flexibly adjusted according to pipe materials of different sizes and shapes to ensure the stability of the pipe material during welding. At the same time, the outer surface of the ring frame rotates through gear transmission, which can accurately move the spot-welded pipe to the position to be welded, thus expanding the applicability of the device to different welding needs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the limiting mechanism of the present invention; Figure 3 This is a schematic diagram of the welding equipment body structure of the present invention; Figure 4 This is a schematic diagram of the pipe material structure of the present invention; Figure 5 This is a schematic diagram of the conductive ring structure of the present invention; Figure 6 This is a schematic diagram of the take-up reel structure of the present invention; Figure 7 This is a schematic diagram of the filter box structure of the present invention; Figure 8 This is a schematic diagram of the top ring structure of the present invention; Figure 9 This is a schematic diagram of the carbon plate structure of the present invention.

[0020] In the diagram: 1. Base; 2. Pipe material; 3. Limiting mechanism; 31. Friction rod; 32. Clamping plate; 33. Support plate; 34. Mounting frame; 35. Drive rod; 36. First motor; 4. Welding mechanism; 41. Welding frame; 42. Welding box; 43. Welding equipment body; 44. Electrical transmission assembly; 441. Output pipe; 442. Conductive ring; 443. Dispersion block; 45. Ring frame; 46. Protective ring; 47. First gear; 48. Second gear; 49. Second motor; 41. 0. Spot-welded pipe; 411. Filter assembly; 4111. Filter box; 4112. Guide wheel; 4113. Cleaning plate; 4114. Electrostatic adsorption plate; 4115. Partition plate; 412. Take-up reel; 5. Exhaust mechanism; 51. Heating box; 52. Heat outlet pipe; 53. Exhaust pipe; 54. Telescopic component; 55. Adsorption assembly; 551. Cylinder; 552. Carbon plate; 553. Heat-conducting rod; 56. Arc-shaped pressure plate; 57. Top ring; 58. Exhaust pipe; 59. Limiting pipe; 510. Exhaust plate. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figure 1-9This invention provides a metal material welding device for decoration and renovation, including a base 1, a pipe material 2 placed on the top of the base 1, a welding mechanism 4 provided on the top of the base 1, the welding mechanism 4 including a welding frame 41 installed on the top of the base 1, the top of the base 1 being connected to the welding frame 41 via a welding box 42, a welding equipment body 43 fixedly installed on the top of the welding frame 41, an electrical transmission component 44 connected to the output end of the welding equipment body 43, an annular frame 45 fixedly installed on the top of the base 1, and the pipe material 2 located inside the annular frame 45, a spot welding pipe 410 connected to the output end of the electrical transmission component 44 installed on the surface of the annular frame 45, an exhaust mechanism 5 provided on the inner surface of the annular frame 45, the exhaust mechanism 5 including a telescopic member 54 installed on the inner wall of the annular frame 45, and an arc-shaped pressure plate 56 for venting the pressure spot welding part rotatably installed on the output end of the telescopic member 54.

[0023] The welding equipment body 43 is fixedly installed on the top of the welding frame 41. It is the core energy output source of the entire welding process. Its output end is connected to the electrical transmission component 44. The function of the electrical transmission component 44 is to stably and efficiently transmit the welding current generated by the welding equipment body 43 to the subsequent spot welding pipe 410 for welding, ensuring that the current reaching the spot welding pipe 410 has appropriate parameters to meet the requirements of different metal materials and welding processes. At the same time, the ring frame 45 is fixedly installed on the top of the base 1, and the pipe material 2 is located inside it. This design allows the ring frame 45 to be arranged around the pipe material 2, providing suitable space and positioning for spot welding operations.

[0024] The telescopic component 54 is driven by a built-in pneumatic cylinder. When venting is required at the welded area, the telescopic component 54 extends, pushing the component connected to its output end toward the spot weld. When the telescopic component 54 extends and pushes the arc-shaped pressure plate 56 close to the spot weld, the arc-shaped pressure plate 56 contacts the surface of the pipe material 2 and applies a certain pressure to the spot weld. This pressure can squeeze out the air around the spot weld, forming a relatively sealed space. At the same time, it promotes the discharge of gas generated during the welding process from the welding area, reducing gas residue in the weld and thus avoiding defects such as weld porosity caused by gas, improving welding quality. Moreover, the rotating installation method of the arc-shaped pressure plate 56 allows it to better adapt to the curved shape of the pipe material 2, ensuring good contact with the pipe surface and improving the venting effect.

[0025] In some embodiments, the surface of the annular frame 45 is provided with an adsorption component 55, the adsorption component 55 includes a cylinder 551 mounted on the surface of the arc-shaped pressure plate 56, a multi-layer carbon plate 552 is fixedly installed inside the cylinder 551, and a plurality of exhaust plates 510 are provided on the surface of the arc-shaped pressure plate 56, and the exhaust plates 510 are in communication with the inside of the cylinder 551.

[0026] During welding, the cylinder 551 of the adsorption component 55 is installed on the surface of the arc-shaped pressure plate 56, and the multi-layer carbon plate 552 is fixed inside the cylinder 551. The impurities and gases generated during welding enter the cylinder 551 through the exhaust plate 510 and are adsorbed by the multi-layer carbon plate 552. This effectively adsorbs the impurities and dust generated during the welding process, keeps the welded part clean, reduces the impact of impurities on the welding quality, and improves the aesthetics and firmness of the welded part.

[0027] In some embodiments, a heating box 51 is fixedly mounted on the surface of the ring frame 45. The output end of the heating box 51 is connected to the bottom end of the cylinder 551 through a heat outlet pipe 52. The input end of the heating box 51 is connected to the exhaust plate 510 through an exhaust pipe 53. A plurality of heat-conducting rods 553 are fixedly mounted inside the cylinder 551.

[0028] The heat generated by the heating box 51 enters the cylinder 551 through the heat outlet pipe 52 and is evenly transferred through the heat conduction rod 553 to preheat the gas generated during welding, reducing the impact of gas temperature changes on the welding environment. At the same time, the heat conduction rod 553 ensures uniform heat distribution, which helps stabilize the welding temperature and improve the welding quality. Furthermore, the connection between the exhaust pipe 53 and the exhaust plate 510 enables the recovery of the gas generated during welding, reducing secondary harm to the environment.

[0029] In some embodiments, the top end of the cylinder 551 is connected to a limiting tube 59 via an air outlet pipe 58, and the limiting tube 59 is connected to a plurality of hot nozzles for preheating the welding part near the spot welding position of the spot welding pipe 410.

[0030] The heat generated by the heating box 51 enters the limiting pipe 59 through the air outlet 58 and is sprayed out by the hot nozzle to preheat the welding part. Preheating the welding part in advance reduces welding stress, reduces the possibility of cracks, makes the welding process more stable, and improves welding quality.

[0031] In some embodiments, three arc-shaped pressure plates 56 are provided, and a top ring 57 is fixedly installed between the three arc-shaped pressure plates 56.

[0032] The system employs three arc-shaped pressure plates 56, with a top ring 57 fixedly installed between them. This provides stability and coordination, allowing the three arc-shaped pressure plates 56 to apply pressure evenly to the spot welding area, thereby improving the venting effect. At the same time, the top ring 57 enhances the stability of the structure and ensures the reliability of the venting process.

[0033] In some embodiments, a protective ring 46 is fixedly installed on the outer surface of the ring frame 45, a first gear 47 is fixedly installed inside the protective ring 46, a second motor 49 is fixedly installed on the surface of the welding frame 41, a second gear 48 is fixedly installed on the output shaft of the second motor 49, and the first gear 47 meshes with the second gear 48.

[0034] The second motor 49 rotates and drives the second gear 48, which in turn drives the first gear 47 to rotate through meshing transmission. The first gear 47 drives the ring frame 45 to rotate, and the ring frame 45 drives the spot-welded pipe 410 to rotate, thereby realizing circumferential welding of the pipe material 2, ensuring the continuity of welding, expanding the applicability of the device, and improving welding efficiency.

[0035] In some embodiments, the electrical transmission assembly 44 includes an output tube 441 rotatably mounted on the top of the ring frame 45, and the output tube 441 is connected to the output end of the welding equipment body 43. A conductive ring 442 is installed inside the output tube 441, and the cross section of the conductive ring 442 is cross-shaped. A plurality of dispersion blocks 443 are fixedly installed on the outer surface of the conductive ring 442.

[0036] The welding current enters the output tube 441 through the output end of the welding equipment body 43, and is transmitted to the tip of the spot welding tube 410 through the conductive ring 442 and the dispersion block 443. At the same time, the cross-shaped conductive ring 442 and multiple dispersion blocks 443 enhance the conductivity and stability, can distribute the current more evenly, reduce the loss and interference in the current transmission process, ensure the stability of the welding current, and improve the welding quality.

[0037] In some embodiments, a take-up reel 412 is rotatably mounted at the bottom end of the ring frame 45, the surface of the take-up reel 412 is wound with welding wire, a filter assembly 411 is mounted on the surface of the ring frame 45, and the welding wire slides through the filter assembly 411 and is welded to the spot welding pipe 410.

[0038] The take-up reel 412 rotates to release the welding wire, which facilitates the storage and use of the welding wire. After being cleaned by the filter assembly 411, the welding wire enters the spot welding tube 410 for welding, removing impurities from the surface of the welding wire, ensuring the quality of the welding wire during welding, and reducing welding spatter.

[0039] In some embodiments, the filter assembly 411 includes a filter box 4111 mounted at the bottom of the ring frame 45. A plurality of guide wheels 4112 for guiding the welding wire are rotatably mounted inside the filter box 4111. A cavity consisting of two partitions 4115 is fixedly mounted inside the filter box 4111. A cleaning plate 4113 for cleaning the welding wire is fixedly mounted on the inner surface of the partition 4115. An electrostatic adsorption plate 4114 for adsorbing impurities and dust is fixedly mounted on the surface of the partition 4115. An electrostatic generator is fixedly mounted on the inner wall of the filter box 4111.

[0040] The welding wire enters the cavity through the guide wheel 4112, which guides the welding wire and allows it to pass smoothly through the filter box 4111. The cleaning plate 4113 cleans the surface of the welding wire, ensuring a smooth surface and stable quality. It also isolates impurities between the two partitions 4115. At the same time, the electrostatic generator charges the electrostatic adsorption plate 4114 to adsorb impurities and dust, ensuring the cleanliness of the welding wire, further improving the welding quality, and reducing welding defects caused by impurities in the welding wire.

[0041] In some embodiments, a limiting mechanism 3 is provided at the top of the base 1. The limiting mechanism 3 includes a mounting bracket 34 installed at the top of the base 1. A first motor 36 is fixedly installed at the top of the mounting bracket 34. A drive rod 35 is fixedly installed on the output shaft of the first motor 36. Two support plates 33 are installed on the surface of the drive rod 35. Clamping plates 32 are provided at both ends of the support plates 33. Friction rods 31 for limiting the pipe material 2 are fixedly installed at both ends of the clamping plates 32.

[0042] The first motor 36 rotates to drive the drive rod 35, which in turn moves the support plate 33 and the clamping plate 32. The clamping force and position can be flexibly adjusted according to the pipe material 2 of different sizes and shapes. The friction rod 31 limits the pipe material 2 and effectively fixes the pipe material 2, ensuring the stability of the pipe material 2 during welding, avoiding welding deviation caused by material movement, and improving welding accuracy and quality.

[0043] Working principle: First, the welding equipment body 43 is connected to the electrical transmission component 44, which stably and efficiently transmits the welding current generated by the welding equipment body 43 to the subsequent spot welding pipe 410 for welding. When it is necessary to perform an air venting operation on the welding part, the telescopic component 54 extends, pushing the component connected to its output end to move towards the spot welding part. When the telescopic component 54 extends and pushes the arc-shaped pressure plate 56 close to the spot welding part, the arc-shaped pressure plate 56 will contact the surface of the pipe material 2 and apply a certain pressure to the spot welded part. This pressure can squeeze out the air around the spot welding part, forming a relatively sealed space, while promoting the gas generated during the welding process to be discharged from the welding area, reducing the gas residue in the weld, thereby avoiding defects such as weld porosity caused by gas and improving the welding quality.

[0044] In the description of this invention, only preferred embodiments are described, but the scope of protection of this invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this invention, based on the technical solution and inventive concept of this invention, should be covered within the scope of protection of this invention.

Claims

1. A device for welding metal materials for decorative finishing, comprising a base (1), characterized in that: The top end of the base (1) is provided with a pipe material (2), and the top end of the base (1) is provided with a welding mechanism (4). The welding mechanism (4) comprises a welding frame (41) mounted at the top end of the base (1), and the top end of the base (1) is connected with the welding frame (41) through a mounted welding box (42). The top end of the welding frame (41) is fixedly mounted with a welding device body (43). The output end of the welding device body (43) is connected with an electric transmission assembly (44). The top end of the base (1) is fixedly mounted with an annular frame (45), and the pipe material (2) is located inside the annular frame (45). The surface of the annular frame (45) is mounted with a spot welding pipe (410) connected with the output end of the electric transmission assembly (44). The inner surface of the annular frame (45) is provided with an exhaust mechanism (5). The exhaust mechanism (5) comprises a telescopic piece (54) mounted on the inner wall of the annular frame (45). The output end of the telescopic piece (54) is rotatably mounted with an arc-shaped pressing plate (56) for pressurizing and exhausting the spot welding position.

2. A metal material welding device for decoration according to claim 1, characterized in that: The surface of the annular frame (45) is provided with an adsorption assembly (55). The adsorption assembly (55) comprises a cylinder (551) mounted on the surface of the arc-shaped pressing plate (56). A plurality of multilayer carbon plates (552) are fixedly mounted in the cylinder (551). The surface of the arc-shaped pressing plate (56) is communicatively provided with a plurality of exhaust plates (510), and the exhaust plates (510) are in communication with the inside of the cylinder (551).

3. A metal material welding device for decoration according to claim 2, characterized in that: The surface of the annular frame (45) is fixedly mounted with a heating box (51). The output end of the heating box (51) is in communication with the bottom end of the cylinder (551) through a heat outlet pipe (52). The input end of the heating box (51) is in communication with the exhaust plate (510) through an exhaust pipe (53). A plurality of heat conducting rods (553) are fixedly mounted in the inside of the cylinder (551).

4. The metal material welding device for decoration according to claim 2, characterized in that: The top end of the cylinder (551) is communicatively mounted with a limiting tube (59) through an exhaust pipe (58). A plurality of heat spray heads for preheating the welding position are communicatively mounted on the limiting tube (59) near the spot welding position of the spot welding pipe (410).

5. The metal material welding device for decoration according to claim 1, characterized in that: The arc-shaped pressing plate (56) is provided with three arc-shaped pressing plates (56). The three arc-shaped pressing plates (56) are fixedly mounted with a top ring (57) therebetween.

6. The metal material welding device for decoration according to claim 1, characterized in that: The outer surface of the annular frame (45) is fixedly mounted with a protection ring (46). The inside of the protection ring (46) is fixedly mounted with a first gear (47). The surface of the welding frame (41) is fixedly mounted with a second motor (49). The output shaft of the second motor (49) is fixedly mounted with a second gear (48). The first gear (47) is engaged with the second gear (48).

7. The metal material welding device for decoration according to claim 1, characterized in that: The electric transmission assembly (44) comprises an output pipe (441) rotatably mounted at the top end of the annular frame (45). The output pipe (441) is connected with the output end of the welding device body (43). The inside of the output pipe (441) is mounted with a conductive ring (442). The cross section of the conductive ring (442) is cross-shaped. The outer surface of the conductive ring (442) is fixedly mounted with a plurality of dispersion blocks (443).

8. The metal material welding device for decoration according to claim 1, characterized in that: The bottom end of the annular frame (45) is rotationally installed with a wire collecting wheel (412), the surface of the wire collecting wheel (412) is wound with welding wire, the surface of the annular frame (45) is installed with a filter assembly (411), and the welding wire slides through the filter assembly (411) and cooperates with the spot welding pipe (410) to be welded.

9. A device for welding metal materials for decorative finishing according to claim 8, characterized in that: The filter assembly (411) comprises a filter box (4111) installed at the bottom end of the annular frame (45), a plurality of guide wheels (4112) for guiding the welding wire are rotationally installed in the filter box (4111), a cavity composed of two partition plates (4115) is fixedly installed in the filter box (4111), the inner surface of the partition plate (4115) is fixedly installed with a cleaning plate (4113) for cleaning the welding wire, the surface of the partition plate (4115) is fixedly installed with an electrostatic adsorption plate (4114) for adsorbing impurity dust, and the inner wall of the filter box (4111) is fixedly installed with an electrostatic generator.

10. The metal material welding device for decoration according to claim 1, characterized in that: The top end of the base (1) is provided with a limiting mechanism (3), the limiting mechanism (3) comprises a mounting frame (34) installed at the top end of the base (1), a first motor (36) is fixedly installed at the top end of the mounting frame (34), a driving rod (35) is fixedly installed on the output shaft of the first motor (36), two supporting plates (33) are installed on the surface of the driving rod (35), clamping plates (32) are arranged at both ends of the supporting plates (33), and friction rods (31) for limiting the pipe material (2) are fixedly installed at both ends of the clamping plates (32).

Images