A welding device for the body of a one-way explosion-proof valve

Abstract

This invention discloses a welding device for a one-way explosion-proof valve body, comprising an adjustment component, a welding component, and a welding surface finishing component. The adjustment component is used to adjust the position of the welding surface finishing, and the welding component is used for adjusting and welding the valve body. The welding component includes a fixed plate fixedly mounted on the top of a fixed base and a first sliding rod fixedly mounted on the fixed plate. The welding surface finishing component is used to pre-treat the welding surface of the valve body at the position where it is welded to the flange. The welding surface finishing component includes a mounting plate, a transverse partition fixedly mounted on one side of the mounting plate, and side plates fixedly mounted on both sides of the transverse partition. This invention uses a rotating annular finishing strip to clean the welding surface of the valve body and the flange. The annular finishing strip fits tightly with the welding surface of the valve body, effectively removing oxide layers, oil stains, and impurities from the welding surface, improving the weld bonding strength, and avoiding affecting the subsequent assembly and sealing performance of the valve body.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, and in particular to a welding device for a one-way explosion-proof valve body. Background Technology

[0002] One-way explosion-proof valves are mainly used on the inlet pipes of dust collectors or cyclone separators. They are simple, economical, and reliable explosion-proof products, primarily used to prevent the flames and shock waves generated after an explosion inside the equipment from reaching upstream pipes and equipment. During operation, the valve disc of the one-way explosion-proof valve is opened by the normal airflow within the pipeline or remains in a normally open state. In the event of an explosion inside the protected equipment, the valve disc closes due to the impact of the shock wave. Manufacturing explosion-proof valves requires valve body welding equipment.

[0003] For current welding equipment, such as the welding device disclosed in Chinese Patent Publication No. CN119927546A for a fully welded ball valve body, when welding the flange ring of an explosion-proof valve, the annular welding surface between the flange and the valve body often needs to be pre-treated with a welding surface cleaning process. An unfinished welding surface can interfere with the welding work and welding quality, and even affect the sealing effect of the finished product, making welding very inconvenient. Therefore, this invention proposes a welding device for a one-way explosion-proof valve body. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a welding device for a one-way explosion-proof valve body.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A welding device for a one-way explosion-proof valve body includes an adjustment assembly, a welding assembly, and a welding surface finishing assembly;

[0007] The adjustment component is used to adjust the position of the welding surface finishing. The adjustment component includes a fixed base and a support plate fixedly mounted on the fixed base.

[0008] The welding assembly is used for adjusting and welding the valve body. The welding assembly includes a fixing plate fixedly mounted on the top of the fixing base and a first sliding rod fixedly mounted on the fixing plate.

[0009] The welding surface finishing assembly is used to pre-treat the welding surface of the valve body at the position where it is welded to the flange. The welding surface finishing assembly includes a mounting plate, a transverse partition fixedly disposed on one side of the mounting plate, and side plates fixedly disposed on both sides of the transverse partition.

[0010] Preferably, a top plate is fixedly provided on the top of the support plate, a first electric sliding column is fixedly provided on one side of the top of the top plate, a second sliding rod is fixedly provided on the other side of the top of the top plate, a first electric controller is fixedly provided on the side of the top plate near the first electric sliding column, a second slider is provided on both the first electric sliding column and the second sliding rod, a T-shaped plate is fixedly provided between the two second sliders, a second electric sliding column is fixedly provided on one side of the T-shaped plate, and a second electric controller is fixedly provided on the top of the T-shaped plate.

[0011] Preferably, a shelf is fixedly installed on the top side of the fixed base near the fixed plate, the top of the shelf is provided with a groove, an explosion-proof valve is placed inside the groove, a first slider is slidably installed on the first slide rod, and a welder is fixedly installed on the top of the first slider.

[0012] Preferably, a first rotating roller is rotatably connected between the two side plates and above the transverse partition, and a second rotating roller is rotatably connected to the bottom of one of the side plates. A synchronous pulley is fixedly provided on the adjacent side of the two rotating rollers, and the two rotating rollers are linked by a synchronous belt to drive the synchronous pulley. A third electric controller is fixedly provided on the side of the mounting plate near the synchronous belt, and the drive end of the third electric controller is fixedly connected to the first rotating roller.

[0013] Preferably, a fixed cylinder is fixedly provided on one side of one of the side plates, the second rotating roller is rotatably mounted on the fixed cylinder, one end of the second rotating roller extends into the interior of the fixed cylinder, an electric telescopic plate is fixedly provided on one side of the fixed cylinder, an anti-slip strip is fixedly provided on one side of the electric telescopic plate, a fixed frame is fixedly provided inside the fixed cylinder, the second rotating roller is rotatably connected to the fixed frame, a rotating disk is fixedly connected to one end of the second rotating roller and on the outer side of the fixed frame, and a finishing strip is fixedly provided on one side of the rotating disk.

[0014] Preferably, a dust collection component is provided on the second rotating roller and inside the fixed cylinder for simultaneously sucking away and cleaning the oxide scale and fine welding slag generated during the finishing process of the finishing strip on the welding surface. The dust collection component includes a reciprocating screw integrally formed on the second rotating roller, a screw nut threadedly slidably connected to the reciprocating screw, a guide rod fixedly provided between the fixed frame and the fixed cylinder, guide plates fixedly provided on both the left and right sides of the screw nut and slidably connected through the guide rod, push plates fixedly provided on both the upper and lower sides of the screw nut, pipe frames fixedly provided at both the upper and lower ends of one side of the fixed frame, and folding air boxes fixedly provided between the two pipe frames and the two push plates.

[0015] Preferably, two suction pipes connected to the two folding air boxes are fixedly installed at both ends of the two pipe frames, and discharge pipes connected to the suction pipes are fixedly installed on both sides of the two pipe frames. Recovery boxes are fixedly installed on the upper and lower outer walls of the fixed cylinder, and the discharge pipes are connected to the recovery boxes.

[0016] Preferably, a propulsion assembly for pushing the valve body along the slide groove into the fixed cylinder and gradually clamping it is fixedly provided on another side plate. The propulsion assembly includes an electric push rod fixedly provided on one side of the bottom end of the other side plate, and a fourth electric controller is fixedly provided on the other side of the bottom end of the other side plate. The drive end of the fourth electric controller is fixedly connected to the electric push rod.

[0017] Preferably, the anti-slip strip is made of soft, non-slip rubber material, and both the anti-slip strip and the finishing strip have a ring structure.

[0018] Preferably, the slag suction pipe is provided with a one-way valve that faces in one direction toward the inside of the folding air box, and the slag discharge pipe is provided with a one-way valve that faces in one direction toward the inside of the recovery box.

[0019] The present invention has the following beneficial effects:

[0020] 1. The first rotating roller is driven to rotate by the third electric controller, and the second rotating roller is driven to rotate synchronously through the synchronous pulley and synchronous belt. This, in turn, drives the annular finishing strip on the rotating disk to rotate, and performs welding surface cleaning treatment on the welding position between the valve body and the flange. The annular finishing strip fits tightly with the welding surface of the valve body, which can effectively remove the oxide layer, oil stains and impurities on the welding surface, ensuring the welding surface is clean, improving the weld bonding force, and avoiding affecting the subsequent assembly and sealing performance of the valve body. The electric telescopic plate drives the anti-slip strip to clamp the valve body. The anti-slip strip is made of soft and non-slip rubber material, which can not only ensure that the valve body does not shift, but also avoid scratches and wear on the surface of the valve body, protecting the appearance and structural integrity of the valve body.

[0021] 2. The push plate is driven to move back and forth by the screw nut, which pushes the folding bellows to extend and retract. When the folding bellows extends and retracts, it generates negative pressure, which sucks the metal dust generated during the finishing process of the welding surface into the folding bellows through the slag suction pipe. The one-way valve in the slag suction pipe can prevent the metal dust from flowing back. Then the metal dust enters the recycling box through the slag discharge pipe, realizing the centralized recycling of metal dust. This not only avoids the metal dust from spreading and polluting the workshop environment and reducing the harm to the respiratory tract of operators, but also allows the metal dust to be recycled and reused, saving resources. At the same time, it eliminates the step of manual dust cleaning, further improving work efficiency and realizing environmentally friendly and automated production.

[0022] 3. By matching the shape of the explosion-proof valve with the sliding groove on the top of the shelf, the valve body can be limited to prevent rotation or displacement during welding, ensuring that the welding surfaces of the valve body and the flange are aligned, reducing defects such as welding misalignment and incomplete welding. The sliding cooperation between the first sliding rod and the first sliding block on the fixed plate can drive the welder to move smoothly along the direction of the sliding rod, achieving uniform welding of the valve body welding position, ensuring the flatness and firmness of the weld seam, and improving the explosion-proof performance of the valve body. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the main structure of a welding device for a one-way explosion-proof valve body proposed in this invention.

[0024] Figure 2 This is a side view of the welding device for the body of a one-way explosion-proof valve proposed in this invention.

[0025] Figure 3 This is a schematic diagram of the welding assembly in this invention;

[0026] Figure 4 This is a schematic diagram of the structure of the adjustment component in this invention;

[0027] Figure 5 This is a schematic diagram of the structure of the mounting plate and the transverse partition in this invention.

[0028] Figure 6 This is a schematic diagram of the outer side of the welding surface finishing component in this invention;

[0029] Figure 7 This is a side view of the fixed cylinder structure in this invention;

[0030] Figure 8 This is a schematic diagram of the main structure of the fixed cylinder in this invention;

[0031] Figure 9 This is a schematic diagram of the internal structure of the fixed cylinder in this invention;

[0032] Figure 10 This is a front view schematic diagram of the dust collection component in this invention;

[0033] Figure 11 This is a side view of the dust collection component in this invention.

[0034] In the diagram: 1. Fixed base, 2. Support plate, 3. Top plate, 4. Shelf, 5. Slide groove, 6. Explosion-proof valve, 7. Fixed plate, 8. First slide rod, 9. First slider, 10. Welder, 11. First electric slide column, 12. First electric controller, 13. Second slide rod, 14. Second slider, 15. T-shaped plate, 16. Second electric slide column, 17. Second electric controller, 18. Mounting plate, 19. Horizontal partition, 20. Side plate, 21. First rotating roller, 22. Second rotating roller, 23. Synchronous belt, 24. Third electric controller, 25. Fixed cylinder, 26. Electric telescopic plate, 27. Anti-slip strip, 28. Fixed frame, 29. Rotary disc, 30. Finishing strip, 31. Reciprocating screw, 32. Screw nut, 33. Guide plate, 34. Guide rod, 35. Push plate, 36. Pipe rack, 37. Folding air box, 38. Slag suction pipe, 39. Slag discharge pipe, 40. Recovery box, 41. Electric push rod, 42. Fourth electric controller. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0036] Example 1:

[0037] Reference Figures 1-4 A welding device for a one-way explosion-proof valve body, comprising an adjustment assembly, a welding assembly, and a welding surface finishing assembly, characterized in that:

[0038] The adjustment component is used to adjust the position of the welding surface finishing. The adjustment component includes a fixed base 1 and a support plate 2 fixedly installed on the fixed base 1.

[0039] The welding assembly is used for adjusting and welding the valve body. The welding assembly includes a fixing plate 7 fixedly installed on the top of the fixing base 1 and a first slide rod 8 fixedly installed on the fixing plate 7.

[0040] The welding surface finishing assembly is used to pre-treat the welding surface of the valve body at the position where it is welded to the flange. The welding surface finishing assembly includes a mounting plate 18, a transverse partition 19 fixedly disposed on one side of the mounting plate 18, and side plates 20 fixedly disposed on both sides of the transverse partition 19.

[0041] A top plate 3 is fixedly installed on the top of the support plate 2. A first electric sliding column 11 is fixedly installed on one side of the top of the top plate 3. A second sliding rod 13 is fixedly installed on the other side of the top of the top plate 3. A first electric controller 12 is fixedly installed on the side of the top plate 3 near the first electric sliding column 11. A second slider 14 is installed on both the first electric sliding column 11 and the second sliding rod 13. A T-shaped plate 15 is fixedly installed between the two second sliders 14. A second electric sliding column 16 is fixedly installed on one side of the T-shaped plate 15. A second electric controller 17 is fixedly installed on the top of the T-shaped plate 15.

[0042] A shelf 4 is fixedly installed on the top of the fixed base 1 near the fixed plate 7. A groove 5 is opened on the top of the shelf 4. An explosion-proof valve 6 is placed inside the groove 5. A first slider 9 is slidably installed on the first slide rod 8. A welder 10 is fixedly installed on the top of the first slider 9.

[0043] Anti-slip strip 27 is made of soft, non-slip rubber material. Both anti-slip strip 27 and finishing strip 30 have a ring structure.

[0044] In this embodiment, the first electric slide column 11 is controlled by the first electric controller 12 to drive the two second sliders 14 to slide horizontally synchronously along the first electric slide column 11 and the second slide bar 13. This drives the T-shaped plate 15 and the welding surface finishing component connected to the bottom, as well as the linked welding component, to achieve precise horizontal displacement. At the same time, the second electric controller 17 controls the extension and retraction of the second electric slide column 16, which drives the welding surface finishing component to achieve vertical height adjustment. This bidirectional adjustment structure can flexibly adjust the relative position of the welding surface finishing position and the welding component according to the explosion-proof valve body of different specifications and welding positions. It can adapt to the processing requirements of various valve bodies without the need to replace special fixtures or adjustment mechanisms, greatly reducing the difficulty of operation, improving work efficiency, ensuring the precision of welding surface finishing, and improving the welding effect.

[0045] In addition, all components of the adjustment assembly adopt a modular fixing method, which facilitates later maintenance and component replacement, extends the overall service life of the device, and at the same time, the stable support of the fixed base 1 and the support plate 2 further ensures the stability of the adjustment process, avoids shaking during the adjustment process, ensures that the welding position and the finishing position are accurately aligned, and indirectly improves the welding quality.

[0046] Example 2:

[0047] Reference Figures 5-11 Compared to Embodiment 1, in this embodiment, a first rotating roller 21 is rotatably connected between the two side plates 20 and above the transverse partition 19, and a second rotating roller 22 is rotatably connected to the bottom of one of the side plates 20. A synchronous wheel is fixedly provided on the adjacent side of the two rotating rollers, and the two rotating rollers are linked by a synchronous belt 23 to drive the synchronous wheel. A third electric controller 24 is fixedly provided on the side of the mounting plate 18 near the synchronous belt 23, and the drive end of the third electric controller 24 is fixedly connected to the first rotating roller 21.

[0048] A fixed cylinder 25 is fixedly installed on one side of one of the side plates 20. A second rotating roller 22 is rotatably mounted on the fixed cylinder 25. One end of the second rotating roller 22 extends into the interior of the fixed cylinder 25. An electric telescopic plate 26 is fixedly installed on one side of the fixed cylinder 25. An anti-slip strip 27 is fixedly installed on one side of the electric telescopic plate 26. A fixed frame 28 is fixedly installed inside the fixed cylinder 25. The second rotating roller 22 is rotatably connected to the fixed frame 28. A rotating disk 29 is fixedly connected to one end of the second rotating roller 22 and on the outer side of the fixed frame 28. A finishing strip 30 is fixedly installed on one side of the rotating disk 29.

[0049] A dust collection component is provided on the second rotating roller 22 and inside the fixed cylinder 25 for simultaneously sucking away and cleaning the oxide scale and tiny welding slag generated during the finishing process of the finishing strip 30 on the welding surface. The dust collection component includes a reciprocating screw 31 integrally formed on the second rotating roller 22, a screw nut 32 threadedly slidably connected to the reciprocating screw 31, a guide rod 34 fixedly provided between the fixed frame 28 and the fixed cylinder 25, guide plates 33 that are slidably connected through the guide rod 34 are fixedly provided on both the left and right sides of the screw nut 32, push plates 35 are fixedly provided on both the upper and lower sides of the screw nut 32, pipe racks 36 are fixedly provided at both the upper and lower ends of one side of the fixed frame 28, and folding bellows 37 are fixedly provided between the two pipe racks 36 and the two push plates 35.

[0050] Two suction pipes 38, which are connected to the two folding air boxes 37, are fixedly installed at both ends of the two pipe frames 36. Slag discharge pipes 39, which are connected to the suction pipes 38, are fixedly installed on both sides of the two pipe frames 36. Recycling boxes 40 are fixedly installed on the upper and lower outer walls of the fixed cylinder 25. The slag discharge pipes 39 and recycling boxes 40 are connected to each other.

[0051] The slag suction pipe 38 is equipped with a one-way valve that faces the inside of the folded air box 37, and the slag discharge pipe 39 is equipped with a one-way valve that faces the inside of the recovery box 40.

[0052] In this embodiment, the third electronic controller 24 is fixedly connected to the drive end of the first rotating roller 21 and is used to control the start, stop and speed of the first rotating roller 21. A synchronous pulley is fixedly provided on the adjacent side of the two rotating rollers, and the two synchronous pulleys are connected by a synchronous belt 23 to realize the synchronous linkage between the first rotating roller 21 and the second rotating roller 22. An electric telescopic plate 26 is fixedly installed on one side of the fixed cylinder 25, and an anti-slip strip 27 is fixedly installed on one side of the electric telescopic plate 26. The anti-slip strip 27 is made of soft anti-slip rubber material and has a ring structure. A fixed frame 28 is fixedly installed inside the fixed cylinder 25. The second rotating roller 22 is rotatably connected to the fixed frame 28 to ensure that the second rotating roller 22 rotates smoothly. A rotating disk 29 is fixedly connected to one end of the second rotating roller 22 and on the outer side of the fixed frame 28. A ring-shaped finishing strip 30 is fixedly installed on one side of the rotating disk 29. The finishing strip 30 is adapted to the welding surface of the valve body and is used to clean the welding surface of the valve body before welding, remove oxide layer and impurities, optimize the flatness of the welding surface, and improve the welding fit and weld quality.

[0053] Furthermore, by adjusting the assembly, the welding surface finishing assembly is moved to a suitable position, aligning the fixed cylinder 25 with the explosion-proof valve 6 on the shelf 4. Then, the valve body is pushed into the fixed cylinder 25 by the pushing assembly. The electric telescopic plate 26 is activated, causing the anti-slip strip 27 to clamp the valve body. The soft, non-slip rubber material ensures that the valve body does not shift during finishing, preventing scratches and wear on the valve body surface, protecting the valve body's appearance and structural integrity. Simultaneously, it ensures precise finishing positioning, providing a flat and clean welding surface for subsequent welding, improving weld fit, and reducing welding defects. After clamping is complete, the third electric controller 2 is activated. 4. Drive the first rotating roller 21 to rotate, and drive the second rotating roller 22 to rotate synchronously through the synchronous pulley and synchronous belt 23. This, in turn, drives the rotating disk 29 and finishing strip 30 to rotate, uniformly pre-treating the welding surface of the valve body, removing the oxide layer and impurities from the welding surface, ensuring that the valve body and flange fit tightly during welding, improving the welding strength, and optimizing the welding effect. The fixed cylinder 25 and the fixed frame 28 provide stable support for the second rotating roller 22 and the rotating disk 29, ensuring smooth rotation during the finishing process, further improving the finishing degree, providing a strong guarantee for improving the welding effect, and solving the problem of incomplete pre-treatment of the welding surface in traditional welding.

[0054] Furthermore, after the welding surface finishing component is started, the second rotating roller 22 drives the reciprocating screw 31 to rotate synchronously. Due to the limiting effect of the guide plate 33 and the guide rod 34, the screw nut 32 moves back and forth linearly along the reciprocating screw 31, thereby driving the push plate 35 to move back and forth, and pushing the folding bellows 37 to perform telescopic movement. When the folding bellows 37 is stretched, a negative pressure is generated inside, and the oxide scale and small welding slag generated during the finishing process are sucked into the folding bellows 37 through the slag suction pipe 38. The one-way valve in the slag suction pipe 38 ensures that impurities can only enter the folding bellows 37 and cannot flow back. When the folding bellows 37 is contracted, the internal pressure increases, pushing the impurities to the pipe rack 36, and then discharging them into the recovery box 40 through the slag discharge pipe 39, realizing the centralized recovery of impurities.

[0055] Example 3:

[0056] Reference Figure 5 Compared to Embodiment 1 and Embodiment 2, in this embodiment, another side plate 20 is fixedly provided with a propulsion assembly for pushing the valve body along the slide groove 5 into the fixed cylinder 25 and gradually clamping it. The propulsion assembly includes an electric push rod 41 fixedly provided on one side of the bottom end of the other side plate 20, and a fourth electric controller 42 fixedly provided on the other side of the bottom end of the other side plate 20. The drive end of the fourth electric controller 42 is fixedly connected to the electric push rod 41.

[0057] In this embodiment, before the finishing operation begins, the fourth electronic controller 42 is activated to control the extension of the electric push rod 41. The telescopic end of the electric push rod 41 pushes the explosion-proof valve 6 in the slide groove 5 of the shelf 4, so that the valve body smoothly enters the fixed cylinder 25 along the slide groove 5 until the valve body reaches the finishing position. The pushing speed of the electric push rod 41 can be flexibly adjusted by the fourth electronic controller 42 to adapt to the pushing requirements of valve bodies of different specifications, ensuring that the valve body enters the finishing position smoothly and avoiding collision and damage to the valve body due to excessive pushing speed. At the same time, it ensures that the finishing position corresponds precisely with the subsequent welding position to improve the welding effect. After the valve body reaches the designated position, the electric push rod 41 remains extended, and in conjunction with the anti-slip strip 27 driven by the electric telescopic plate 26, the valve body is positioned and firmly clamped to ensure that the valve body does not shift during the finishing process, ensuring the finishing accuracy, thereby ensuring that the welding surface is flat and the welding position is accurate, improving the welding quality and welding effect.

[0058] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present 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 the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A welding device for a one-way explosion-proof valve body, comprising an adjustment assembly, a welding assembly, and a welding surface finishing assembly, characterized in that: The adjustment component is used to adjust the position of the welding surface finishing. The adjustment component includes a fixed base (1) and a support plate (2) fixedly disposed on the fixed base (1). The welding assembly is used to adjust and weld the valve body. The welding assembly includes a fixing plate (7) fixedly disposed on the top of the fixing base (1) and a first slide rod (8) fixedly disposed on the fixing plate (7). The welding surface finishing assembly is used to pre-treat the welding surface of the valve body at the position where it is welded to the flange. The welding surface finishing assembly includes a mounting plate (18), a diaphragm (19) fixedly disposed on one side of the mounting plate (18), and side plates (20) fixedly disposed on both sides of the diaphragm (19).

2. The welding device for a one-way explosion-proof valve body according to claim 1, characterized in that, A top plate (3) is fixedly installed on the top of the support plate (2). A first electric sliding column (11) is fixedly installed on one side of the top of the top plate (3). A second sliding rod (13) is fixedly installed on the other side of the top of the top plate (3). A first electric controller (12) is fixedly installed on the side of the top plate (3) near the first electric sliding column (11). A second slider (14) is installed on both the first electric sliding column (11) and the second sliding rod (13). A T-shaped plate (15) is fixedly installed between the two second sliders (14). A second electric sliding column (16) is fixedly installed on one side of the T-shaped plate (15). A second electric controller (17) is fixedly installed on the top of the T-shaped plate (15).

3. The welding device for a one-way explosion-proof valve body according to claim 1, characterized in that, A shelf (4) is fixedly installed on the top of the fixed base (1) near the fixed plate (7). A groove (5) is opened on the top of the shelf (4). An explosion-proof valve (6) is placed inside the groove (5). A first slider (9) is slidably installed on the first slide rod (8). A welder (10) is fixedly installed on the top of the first slider (9).

4. The welding device for a one-way explosion-proof valve body according to claim 1, characterized in that, A first rotating roller (21) is rotatably connected between the two side plates (20) and above the partition plate (19). A second rotating roller (22) is rotatably connected to the bottom of one of the side plates (20). A synchronous wheel is fixedly provided on the adjacent side of the two rotating rollers. The two rotating rollers are linked by a synchronous belt (23) driving the synchronous wheel. A third electric controller (24) is fixedly provided on the side of the mounting plate (18) near the synchronous belt (23). The drive end of the third electric controller (24) is fixedly connected to the first rotating roller (21).

5. The welding device for a one-way explosion-proof valve body according to claim 4, characterized in that, A fixed cylinder (25) is fixedly provided on one side of one of the side plates (20). The second rotating roller (22) is rotatably provided on the fixed cylinder (25). One end of the second rotating roller (22) extends into the interior of the fixed cylinder (25). An electric telescopic plate (26) is fixedly provided on one side of the fixed cylinder (25). An anti-slip strip (27) is fixedly provided on one side of the electric telescopic plate (26). A fixed frame (28) is fixedly provided inside the fixed cylinder (25). The second rotating roller (22) is rotatably connected to the fixed frame (28). A rotating disk (29) is fixedly connected to one end of the second rotating roller (22) and on the outer side of the fixed frame (28). A finishing strip (30) is fixedly provided on one side of the rotating disk (29).

6. The welding device for a one-way explosion-proof valve body according to claim 5, characterized in that, A dust collection assembly is provided on the second rotating roller (22) and inside the fixed cylinder (25) for simultaneously sucking away and cleaning the oxide scale and tiny welding slag generated by the finishing strip (30) during the finishing process of the welding surface. The dust collection assembly includes a reciprocating screw (31) integrally formed on the second rotating roller (22). A screw nut (32) is threadedly slidably connected to the reciprocating screw (31). A guide rod (34) is fixedly provided between the fixed frame (28) and the fixed cylinder (25). Guide plates (33) that are slidably connected through the guide rod (34) are fixedly provided on both the left and right sides of the screw nut (32). Push plates (35) are fixedly provided on both the upper and lower sides of the screw nut (32). Pipe racks (36) are fixedly provided at both the upper and lower ends of one side of the fixed frame (28). Folding bellows (37) are fixedly provided between the two pipe racks (36) and the two push plates (35).

7. The welding device for a one-way explosion-proof valve body according to claim 6, characterized in that, Two suction pipes (38) that communicate with the two folding air boxes (37) are fixedly installed at both ends of the two pipe frames (36). Two discharge pipes (39) that communicate with the suction pipes (38) are fixedly installed on both sides of the two pipe frames (36). A recycling box (40) is fixedly installed on the upper and lower outer walls of the fixed cylinder (25). The discharge pipe (39) and the recycling box (40) communicate with each other.

8. The welding device for a one-way explosion-proof valve body according to claim 4, characterized in that, Another side plate (20) is fixedly provided with a propulsion assembly for pushing the valve body along the slide groove (5) into the fixed cylinder (25) and gradually clamping it. The propulsion assembly includes an electric push rod (41) fixedly provided on one side of the bottom end of the other side plate (20). A fourth electric controller (42) is fixedly provided on the other side of the bottom end of the other side plate (20). The drive end of the fourth electric controller (42) is fixedly connected to the electric push rod (41).

9. The welding device for a one-way explosion-proof valve body according to claim 5, characterized in that, The anti-slip strip (27) is made of soft anti-slip rubber material, and both the anti-slip strip (27) and the finishing strip (30) are in the form of a ring structure.

10. The welding device for a one-way explosion-proof valve body according to claim 7, characterized in that, The slag suction pipe (38) is equipped with a one-way valve that faces the inside of the folding air box (37) in one direction, and the slag discharge pipe (39) is equipped with a one-way valve that faces the inside of the recovery box (40) in one direction.

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