Welding device and method for pressure vessel

Abstract

The present invention relates to the technical field of pressure vessels, and discloses a welding device and method for pressure vessels, wherein the welding device for pressure vessels comprises: a recycling mechanism, the recycling mechanism comprising a box body, a recycling box installed inside the box body, a waste box installed on the side of the recycling box, a support frame installed on the top side of the box body, a drive motor and a drive wheel rotatably installed on the top of the support frame, and the drive wheel is installed on the output end of the drive motor; a screening mechanism is installed inside the box body, the screening mechanism comprises a slide plate slidably connected to the inside of the box body, and the end of the slide plate is rotatably connected to one end of the screening frame. The present application has the advantages of separating fluxes of different forms and preventing unusable flux from affecting welding equipment and welding quality.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure vessels, and more particularly to a welding device and method for pressure vessels. Background Art

[0002] Submerged arc welding machines are widely used for butt welding of pressure vessel shells and heads. Submerged arc welding is a highly efficient, automated arc welding method that utilizes an arc burning beneath a layer of flux to weld metals. The arc generated by submerged arc welding is completely covered by granular flux, resulting in no flash or spatter, resulting in a quiet and environmentally friendly welding process.

[0003] During the welding process, flux is spread abundantly. Most of the flux serves only to cover the arc and protect the molten pool, and does not directly participate in the formation of the weld. Therefore, most of the flux is recyclable. Roller frames are typically used in conjunction with automatic welding equipment such as submerged arc welding machines. The flux deposited at the joint naturally falls off as the roller frame drives the pressure vessel to rotate. Traditional submerged arc welding machines, when welding pressure vessels, typically simply place a box at the bottom of the roller frame to collect the fallen flux. However, during the welding process, some of the flux melts and solidifies due to the high temperature of the arc, mixing with unused flux. This situation not only reduces the efficiency of flux recycling, but can also lead to blockage of the flux delivery device, affecting the quality of subsequent welding and increasing the complexity of subsequent processing. Therefore, it is necessary to provide a welding device and method for pressure vessels to address the aforementioned issues. Summary of the Invention

[0004] To address the problems existing in the prior art, the present invention provides a pressure vessel welding device and method. This device addresses the problem of simple flux recovery devices and difficulty in classifying flux during submerged arc welding of pressure vessels. This device can separate flux of different forms, preventing unusable flux from affecting the welding equipment and welding quality.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions:

[0006] A welding device for a pressure vessel includes a recovery mechanism, the recovery mechanism including a box body, a recovery box installed inside the box body, a waste box installed on the side of the recovery box, a support frame installed on the top side of the box body, a drive motor and a drive wheel rotatably installed on the top of the support frame, and the drive wheel is installed at the output end of the drive motor;

[0007] A screening mechanism is installed inside the box body. The screening mechanism includes a slide plate slidably connected to the inside of the box body. The end of the slide plate is rotatably connected to one end of a screening frame.

[0008] As a preferred solution of the present invention, a support mechanism is provided on the side of the box body, and the support mechanism includes a base installed on the side of the box body, two adjusting motors are symmetrically installed at both ends of the base, two screw rods are symmetrically installed in the base, and each of the screw rods is respectively installed at the output end of the corresponding adjusting motor, each of the screw rods is threadedly connected to a clamp, and the clamp is slidably connected to the top surface of the base, and a number of auxiliary wheels are symmetrically installed on the top surface of the base.

[0009] As a preferred solution of the present invention, a welding mechanism is installed on the side of the base, and the welding mechanism includes a submerged arc welding machine installed on the side of the base. The top surface of the base is respectively installed with a head and a cylinder, and the head and the cylinder both abut against the corresponding auxiliary wheels.

[0010] As a preferred solution of the present invention, the recovery mechanism also includes two ejectors symmetrically installed on the inner wall of the box, two sliding racks are symmetrically fixed on both sides of the interior of the box, and the bottom surfaces on both sides of the slide are slidably connected to the top surfaces of the sliding racks, an oscillation plate is installed on the top of the recovery box, one end of the driving wheel passes through the support frame, and a disc is installed on one end of the driving wheel, and a first shift rod and a second shift rod are arranged in a circular array on the surface of the disc.

[0011] As a preferred solution of the present invention, a crushing mechanism is installed at the top of the support frame, and the crushing mechanism includes a shell installed at the top of the support frame, a first spring is installed inside the shell, a curved rod is slidably connected to the shell, the curved rod passes through the shell, and the curved rod is elastically connected to the shell through the first spring, one end of the curved rod abuts against the first lever, and a pressure plate is installed at the other end of the curved rod.

[0012] As a preferred solution of the present invention, the screening mechanism further includes a support shaft installed on the side of the support frame, the support shaft is rotatably connected to a lever, both ends of the lever are penetrated by an adjusting slot, and the second shift rod is slidably connected to the adjusting slot at the top end of the lever, and the side protrusion of the slide is slidably connected to the adjusting slot at the bottom end of the lever, and two side plates are symmetrically installed on the top surface of the slide, and two first shafts are symmetrically installed on the other end of the screening frame, a first torsion spring is installed on the first shaft, and the two first shafts are elastically connected to the inside of the two ends of the door panel through the first torsion spring, and two push plates are symmetrically fixed on the top surface of the door panel, and a roller is rotatably connected to the bottom surface of the other end of the screening frame, and the roller abuts against the vibration plate;

[0013] A limiting mechanism is installed inside the other end of the screening frame, and the limiting mechanism includes a second spring and a rack installed inside the other end of the screening frame. The rack is elastically connected to the inside of the other end of the screening frame through the second spring, and the bottom end of the rack protrudes from the bottom surface of the screening frame. A swing gear is rotatably connected to the inside of the other end of the screening frame, and the swing gear is meshed with the corresponding rack. A limiting block is fixed on the side of the swing gear, and the limiting block contacts the door panel.

[0014] As a preferred solution of the present invention, a receiving mechanism is installed inside the box, and the receiving mechanism includes a receiving box installed above the slide, a second shaft is installed at one end of the receiving box, a second torsion spring is sleeved on the second shaft, and the second shaft is elastically connected to the inside of the box through the second torsion spring, two sliding grooves are symmetrically provided on both sides of the receiving box, a lifting rod and a third spring are installed inside both sides of the receiving box, the lifting rod is elastically connected to the inside of the receiving box through the third spring, and the other end of the receiving box is slidably connected to a discharge door, and both ends of the discharge door are installed at the ends of the two lifting rods.

[0015] As a preferred solution of the present invention, a crushing mechanism is installed inside the receiving box, and the crushing mechanism includes two sliders that are respectively slidably connected to the inside of each of the slide grooves, and each of the sliders is rotatably connected to the top of the corresponding side plate, and a connecting plate is installed at the top of the slider, and the other end of the connecting plate is rotatably connected to one end of a crushing roller, and the crushing roller is rollingly connected to the inside of the receiving box, and a rotating plate is installed at the bottom end of the slider, and a third shaft is installed at one end of the rotating plate, and a third torsion spring is sleeved on the third shaft, and the rotating plate is elastically connected to the bottom of the slider through the cooperation of the third shaft and the third torsion spring, and a spring sheet is installed inside the bottom end of the slider, and the two ends of the spring sheet respectively resist the inner wall of the slider and the inner wall of the rotating plate.

[0016] The top end face of each said sliding arm is fixedly provided with a toothed plate, and the toothed plate is meshed with toothed plates at two ends.

[0017] As a preferred embodiment of the present invention, a welding method for a pressure vessel welding device comprises the following steps:

[0018] S1: The head and cylinder are aligned and placed on the auxiliary wheels between the two clamps. The adjustment motor is started, and the adjustment motor drives the clamps to move through the screw rod to stabilize the head and cylinder.

[0019] S2: Start the submerged arc welding machine, sprinkle the flux on the gap between the head and the cylinder, drive the motor to drive the driving wheel to rotate, thereby driving the head and the cylinder to rotate, and the submerged arc welding machine welds the weld;

[0020] S3: The driving wheel drives the head and the cylinder to rotate and drives the crushing mechanism to knock the head and the cylinder, which not only plays the role of preliminarily crushing the agglomerated flux and making it dispersed, but also makes the flux fall quickly into the box through knocking and vibration;

[0021] S4: The rotation of the driving wheel also drives the screening mechanism to reciprocate. When the screening mechanism moves to one end of the box, the receiving box is tilted, thereby pouring the flux received by the receiving box into the screening frame; when the screening mechanism moves to the other end of the box, the receiving box is restored to a horizontal level, the material discharge is stopped, and the material is received. At this time, the screening frame classifies the flux, and the recyclable flux falls into the recycling box, and the flux that cannot be used is sent to the waste box;

[0022] S5: During the reciprocating motion of the screening mechanism, the crushing mechanism is driven to roll in the receiving box, thereby crushing the compacted flux and further dispersing the compacted flux, which helps to improve the screening efficiency of the screening mechanism.

[0023] Compared with the prior art, the advantages of the present invention are:

[0024] 1. A recovery mechanism for recovering flux is provided on one side of the base, and a receiving box with one end that can swing is provided inside the box for initially receiving the flux after submerged arc welding. The rotation of the driving wheel drives the slide plate to slide back and forth, so that the receiving box swings. When the slide plate causes the receiving box to swing downward, the flux falls into the screening frame. When the slide plate makes the receiving box horizontal, the flux is stopped from being released. This can ensure that the receiving box collects a sufficient amount of flux and that the screening frame screens the flux in batches to avoid flux accumulation, thereby improving the screening effect and ensuring the screening quality. During the sliding process of the screening frame, the oscillation plate causes the screening frame to vibrate, thereby accelerating the available flux to quickly pass through the screening frame and enter the recycling box. When the other end of the screening frame slides above the waste box, the ejector pushes the door panel to rotate, so that the other end of the screening frame is opened, and the block flux that cannot be filtered is transported to the waste box, thereby completing the classification and recovery of the flux, quickly screening out the flux that can be reused, and improving the efficiency of flux use.

[0025] 2. The driving wheel drives the first shift rod and the first shift rod to move in a circle, and can also drive the curved rod to move back and forth in a cycle, so that the pressure plate can knock the head and the cylinder in a cycle, which not only accelerates the rolling of the granular flux, but also can preliminarily break up the compacted flux, making it convenient for the conveying of the receiving mechanism and the screening of the screening mechanism, thereby improving the screening efficiency.

[0026] 3. Use the slide plate to drive the slider to slide back and forth in the chute, drive the crushing roller to roll inside the receiving box, thereby further crushing the flux initially crushed by the crushing mechanism, making the flux as dispersed as possible, reducing the screening difficulty of the screening mechanism, and recovering as much reusable flux as possible to improve the screening effect; similarly, use the slider to slide inside the chute, and drive the wedge to slide by the rotating plate, which can drive the top column inside the discharge door to hit the push plate multiple times, so that the push plate repeatedly bounces the flux near the discharge door, disperses the flux, reduces flux accumulation, and makes it easier for the crushing roller to crush the flux, thereby improving the effect of the crushing roller in crushing the flux. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic structural diagram of the support mechanism of the present invention;

[0029] Figure 3 This is a schematic diagram of the coordination structure of the recovery mechanism and the crushing mechanism of the present invention;

[0030] Figure 4 It is a partial structural diagram of the recycling mechanism of the present invention;

[0031] Figure 5 This is a schematic diagram of the disassembled structure of the crushing mechanism of the present invention;

[0032] Figure 6This is a schematic diagram of the cross-sectional structure of the box body of the present invention;

[0033] Figure 7 This is a schematic diagram of the internal structure of the receiving box of the present invention;

[0034] Figure 8 This is a schematic diagram of the internal structure of the discharge door of the present invention;

[0035] Figure 9 It is a partial cross-sectional structural diagram of the crushing mechanism of the present invention;

[0036] Figure 10 It is a schematic structural diagram of the screening mechanism of the present invention;

[0037] Figure 11 It is a schematic structural diagram of the limiting mechanism of the present invention.

[0038] Description of the marks in the figure:

[0039] 1. Support mechanism; 11. Base; 12. Adjustment motor; 13. Screw; 14. Clamp; 15. Auxiliary wheel; 2. Welding mechanism; 21. Submerged arc welding machine; 22. Head; 23. Cylinder; 3. Recovery mechanism; 31. Box; 32. Recovery box; 33. Waste box; 34. Ejector pin; 35. Sliding frame; 36. Oscillating plate; 37. Support frame; 38. Drive motor; 39. Drive wheel; 391. Disc; 392. First lever; 393. Second lever; 4. Crushing mechanism; 41. Shell; 42. First spring; 43. Bending rod; 44. Pressing plate; 5. Screening mechanism; 51. Support shaft; 52. Lever; 53. Adjustment slot; 54. Slide plate; 55. Screening frame; 56. Side plate; 57. First shaft; 58. First torsion spring; 59. Door 91. The chute; 92. The wedge; 93. The slide; 94. The fourth spring; 95. The slide column; 96. The toothed plate; 97. The rotating shaft; 98. The transmission gear; 99. The cam; 991. The shift block; 992. The top column; 993. The fifth spring; 994. The push plate; DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0041] For example 1, please refer to Figures 1 to 11 As shown, the present invention discloses a welding device for a pressure vessel, including a recovery mechanism 3, which includes a box body 31, a recovery box 32 is installed inside the box body 31, a waste box 33 is installed on the side of the recovery box 32, a support frame 37 is installed on the top side of the box body 31, a drive motor 38 and a drive wheel 39 are rotatably installed on the top of the support frame 37, and the drive wheel 39 is installed at the output end of the drive motor 38;

[0042] A screening mechanism 5 is installed inside the box body 31 . The screening mechanism 5 includes a slide plate 54 slidably connected to the inside of the box body 31 . An end of the slide plate 54 is rotatably connected to one end of a screening frame 55 .

[0043] A support mechanism 1 is provided on the side of the box body 31, and the support mechanism 1 includes a base 11 installed on the side of the box body 31, two adjusting motors 12 are symmetrically installed at both ends of the base 11, and two screw rods 13 are symmetrically installed in the base 11, and each screw rod 13 is respectively installed at the output end of the corresponding adjusting motor 12, and each screw rod 13 is threadedly connected to a clamp 14, and the clamp 14 is slidably connected to the top surface of the base 11, and a number of auxiliary wheels 15 are symmetrically installed on the top surface of the base 11.

[0044] A welding mechanism 2 is installed on the side of the base 11. The welding mechanism 2 includes a submerged arc welding machine 21 installed on the side of the base 11. A head 22 and a cylinder 23 are installed on the top surface of the base 11 respectively, and the head 22 and the cylinder 23 both abut against the corresponding auxiliary wheels 15.

[0045] The recovery mechanism 3 also includes two ejectors 34 symmetrically mounted on the inner wall of the box body 31, two sliding frames 35 are symmetrically fixed on both sides of the interior of the box body 31, and the bottom surfaces of both sides of the slide 54 are slidably connected to the top surfaces of the sliding frames 35. An oscillation plate 36 is installed on the top of the recovery box 32, one end of the driving wheel 39 passes through the support frame 37, and a disc 391 is installed on one end of the driving wheel 39, and a first shift rod 392 and a second shift rod 393 are arranged in a circular array on the surface of the disc 391.

[0046] The screening mechanism 5 also includes a support shaft 51 mounted on the side of the support frame 37, and a lever 52 is rotatably connected to the support shaft 51. Adjustment slots 53 are provided at both ends of the lever 52, and the second lever 393 is slidably connected to the adjustment slot 53 at the top end of the lever 52. The side protrusion of the slide plate 54 is slidably connected to the adjustment slot 53 at the bottom end of the lever 52. Two side plates 56 are symmetrically mounted on the top surface of the slide plate 54. Two first shafts 57 are symmetrically mounted on the other end of the screening frame 55. A first torsion spring 58 is mounted on the first shaft 57. The two first shafts 57 are elastically connected to the inside of the two ends of the door panel 59 through the first torsion spring 58. Two push plates 591 are symmetrically fixed on the top surface of the door panel 59. The bottom surface of the other end of the screening frame 55 is rotatably connected to a roller 592, and the roller 592 contacts the vibration plate 36.

[0047] A limiting mechanism 6 is installed inside the other end of the screening frame 55. The limiting mechanism 6 includes a second spring 61 and a rack 62 installed inside the other end of the screening frame 55. The rack 62 is elastically connected to the inside of the other end of the screening frame 55 through the second spring 61, and the bottom end of the rack 62 protrudes from the bottom surface of the screening frame 55. A swing gear 63 is rotatably connected inside the other end of the screening frame 55. The swing gear 63 is meshed with the corresponding rack 62. A limiting block 64 is fixed on the side of the swing gear 63, and the limiting block 64 contacts the door panel 59.

[0048] A receiving mechanism 7 is installed inside the box body 31. The receiving mechanism 7 includes a receiving box 71 installed above the slide 54. A second shaft 72 is installed at one end of the receiving box 71. A second torsion spring 73 is sleeved on the second shaft 72. The second shaft 72 is elastically connected to the inside of the box body 31 through the second torsion spring 73. Two sliding grooves 74 are symmetrically provided on both sides of the receiving box 71. A lifting rod 75 and a third spring 76 are installed inside both sides of the receiving box 71. The lifting rod 75 is elastically connected to the inside of the receiving box 71 through the third spring 76. The other end of the receiving box 71 is slidably connected to the discharge door 77, and the two ends of the discharge door 77 are installed at the ends of the two lifting rods 75.

[0049] First, align the end cap 22 and the barrel 23 and place them on several auxiliary wheels 15 between the two clamps 14. The auxiliary wheels 15 lift the end cap 22 and the barrel 23. Then, start the adjustment motor 12, and through the rotation of the screw rod 13, drive the two clamps 14 to move closer together, stabilizing the end cap 22 and the barrel 23. A rotatable disc is provided on the clamp 14. When the clamp 14 clamps the end cap 22 and the barrel 23, the disc contacts the surface of the end cap 22 and the barrel 23. When the drive wheel 39 drives the end cap 22 and the barrel 23 to rotate, the disc rotates synchronously, thereby ensuring that the clamp 14 can still stabilize the end cap 22 and the barrel 23 when the end cap 22 and the barrel 23 rotate. Start the submerged arc welding machine 21 and the drive motor 38. The submerged arc welding machine 21 sprays the flux on the joint of the head 22 and the cylinder 23. At the same time, the drive motor 38 drives the drive wheel 39 to rotate, and the head 22 and the cylinder 23 roll on the auxiliary wheel 15. As the head 22 and the cylinder 23 rotate at a uniform speed (the speed is relatively slow), the flux is evenly sprinkled on the weld seam, and the submerged arc welding machine 21 welds the weld seam. Finally, the flux naturally falls into the box 31 on one side of the base 11 as the head 22 and the cylinder 23 rotate. A receiving mechanism 7 is provided at the top of the box 31. The fallen flux first falls into the receiving box 71. One end of the receiving box 71 is rotatably connected to the inner wall of the box 31 through the second shaft 72 (as shown in the attached manual). Figure 6 (As shown, one end here refers to the left end of the receiving box 71). A screening mechanism 5 is disposed within the housing 31 below the receiving mechanism 7. A disc 391 is mounted on one end of a driving wheel 39 that rotates at the top of the support frame 37. A first lever 392 and a second lever 393 are mounted on the disc 391. A lever 52 drives the slide 54 and the second lever 393. Specifically, a boss on the side of the slide 54 and the second lever 393 are slidably connected to adjustment slots 53 at both ends of the lever 52. As the driving wheel 39 drives the disc 391 to rotate, the second lever 393 drives the upper end of the lever 52 to swing back and forth through the matching adjustment slots 53, causing the lever 52 to swing back and forth about the support shaft 51. Consequently, the lower end of the lever 52 drives the slide 54 to slide back and forth on the sliding frame 35 within the housing 31.

[0050] During the sliding process of the slide plate 54, the side plate 56 is driven to move synchronously, and the side plate 56 drives the corresponding slider 81 to slide in the slide groove 74 on both sides of the receiving box 71. Figure 6When the loading platform 72 is in the closed position, the lifting lever 75 is lifted and the third spring 76 is compressed, so that the loading platform 72 is lifted and the lifting lever 75 is compressed. The flux with larger particles cannot pass through the bottom surface of the screening frame 55 and eventually rolls to the other end and is intercepted by the door panel 59.

[0051] After the receiving box 71 tilts, the lever 52 continues to drive the slide plate 54 to slide, which drives the screening frame 55 to slide to the right of the chute 74. The side plate 56 drives the slider 81 to slide within the chute 74. Since the slide plate 54 slides horizontally, the height of the side plate 56 remains unchanged during the movement. Therefore, as the side plate 56 drives the slider 81 to slide rightward within the chute 74, the receiving box 71 gradually rotates to a horizontal position. During the rotation of the receiving box 71, the second shaft 72 rotates with the interior of the box body 31, and the second torsion spring 73 accumulates force. After the slider 81 slides to the narrowing point of the lifting rod 75, it no longer interferes with the lifting rod 75. Subsequently, the lifting rod 75 slides downward under the elastic force of the third spring 76, and drives the discharge door 77 to slide synchronously, thereby closing the other end of the receiving box 71. The receiving box 71 gradually tends to a horizontal state, and after the other end of the receiving box 71 is closed by the discharge door 77, the flux that falls from the weld of the cylinder 23 into the receiving box 71 will no longer roll into the screening frame 55. This can ensure that the receiving box 71 collects a sufficient amount of flux, and can also enable the screening frame 55 to screen the flux in batches to avoid flux accumulation, thereby improving the screening effect and ensuring the screening quality.

[0052] When the lever 52 drives the slide plate 54 and the screening frame 55 to slide to the right, the screening frame 55 is rotationally connected to the slide plate 54, and the roller 592 at the bottom of the screening frame 55 rolls on the top of the vibration plate 36. The ups and downs of the vibration plate 36 cause the screening frame 55 to vibrate up and down during the sliding process, thereby accelerating the screening of the flux inside the screening frame 55 and greatly improving the classification efficiency and effect. A waste box 33 is installed on the right side of the recycling box 32. The top surface of the waste box 33 is higher than the top surface of the recycling box 32, and the height of the two is smoothly transitioned. When the right end of the screening frame 55 slides from above the recycling box 32 to above the waste box 33, the top of the waste box 33 that is higher than the top surface of the recycling box 32 contacts and squeezes the rack 62 protruding from the bottom surface of the right end of the screening frame 55, causing the rack 62 to slide into the inside of the screening frame 55. The rack 62 compresses the second spring 61 while driving the swing gear 63 to rotate. The swing gear 63 drives the limit block 64 to swing, so that the door panel 59 that was originally in contact with the outside is released. 9 The limit block 64 that cannot be flipped rotates to the inside of the side of the screening frame 55, releasing the restriction on the door panel 59, and then the sliding of the screening frame 55 allows the ejector pin 34 installed on the inner side of the box body 31 to resist the push plate 591, so that the door panel 59 is reversed around the first axis 57. The door panel 59 causes the first torsion spring 58 to store force and opens the right end of the screening frame 55. The block flux that cannot be screened that rolls to the right end of the screening frame 55 falls from the right end of the screening frame 55 into the waste box 33, thereby completing the classification and recycling of the flux, quickly screening out the flux that can be reused, and improving the efficiency of flux use.

[0053] Example 2: This example is an explanation based on Example 1. For details, please refer to Figures 1 to 11 A crushing mechanism 4 is installed at the top of the support frame 37. The crushing mechanism 4 includes a shell 41 installed at the top of the support frame 37. A first spring 42 is installed inside the shell 41. A curved rod 43 is slidably connected to the shell 41. The curved rod 43 passes through the shell 41 and is elastically connected to the shell 41 through the first spring 42. One end of the curved rod 43 contacts the first shift rod 392, and a pressure plate 44 is installed at the other end of the curved rod 43.

[0054] During the process of the driving wheel 39 driving the disc 391 to rotate, the first and second levers 392 and 393 in the circular array on the surface of the disc 391 sequentially push the bottom end of the curved rod 43 to make the curved rod 43 slide. During the sliding process of the curved rod 43, the first spring 42 inside the shell 41 is compressed. When the first lever 392 or the second lever 393 that has contacted the bottom end of the curved rod 43 no longer contacts it, the curved rod 43 is quickly reset under the elastic force of the first spring 42, thereby driving the pressure plate 44 to knock on the surface of the head 22 and the cylinder 23. This can not only accelerate the rolling of the granular flux, but also preliminarily break the flux that has melted together due to high temperature, and preliminarily break up the agglomerated flux, which is convenient for the transportation of the receiving mechanism 7 and the screening of the screening mechanism 5, thereby improving the screening efficiency.

[0055] Example 3: This example is an explanation based on Example 1. For details, please refer to Figures 1 to 11 , a crushing mechanism 8 is installed inside the receiving box 71, and the crushing mechanism 8 includes two sliders 81 that are respectively slidably connected to the inside of each slide groove 74, and each slider 81 is rotatably connected to the top of the corresponding side plate 56, and a connecting plate 82 is installed at the top of the slider 81, and the other end of the connecting plate 82 is rotatably connected to one end of the crushing roller 83, and the crushing roller 83 is rollingly connected to the inside of the receiving box 71, and a rotating plate 84 is installed at the bottom end of the slider 81, and a third shaft 85 is installed at one end of the rotating plate 84. A third torsion spring 86 is sleeved on the third shaft 85, and the rotating plate 84 is elastically connected to the bottom of the slider 81 through the cooperation of the third shaft 85 and the third torsion spring 86. A spring piece 87 is installed inside the bottom end of the slider 81, and the two ends of the spring piece 87 respectively resist the inner wall of the slider 81 and the inner wall of the rotating plate 84.

[0056] The receiving box 71 is internally provided with a spring mechanism 9 on both sides. The spring mechanism 9 includes a plurality of inclined slots 91 equidistantly provided at the bottom of the slide 74. A wedge block 92 is slidably connected in the inclined slot 91. A slide rod 93 and a fourth spring 94 are installed inside the receiving box 71 on both sides. The slide rod 93 is elastically connected to the inside of the receiving box 71 through the fourth spring 94. A plurality of slide columns 95 are equidistantly installed on the top surface of the slide rod 93, and each wedge block 92 is sleeved on the top of the corresponding slide column 95. A tooth plate 96 is fixed to the other end of the slide rod 93. The discharge door 77 The internal rotation is connected with a rotating shaft 97, and transmission gears 98 are installed at both ends of the rotating shaft 97, and the transmission gears 98 are meshed with the corresponding tooth plates 96. A number of cams 99 are installed at equal intervals on the rotating shaft 97, and a number of shift blocks 991 are installed at equal intervals inside the discharge door 77, and each cam 99 abuts against the corresponding shift block 991. A top column 992 is fixed to the top side of each shift block 991, and a fifth spring 993 is sleeved on the top column 992. The shift block 991 is elastically connected to the inside of the discharge door 77 through the corresponding fifth spring 993.

[0057] When the side plate 56 drives the slider 81 to slide back and forth in the slide groove 74, the slider 81 drives the crushing roller 83 to roll inside the receiving box 71 through the connecting plate 82, crushing the flux inside the receiving box 71, so that the flux initially broken up by the crushing mechanism 4 is further crushed, and the flux particles that are not firmly adhered are removed as much as possible for recycling and reuse, thereby reducing the screening difficulty of the screening mechanism 5 and improving the screening efficiency.

[0058] Since the receiving box 71 is in the process of rotating from the tilted state to the horizontal state, and during this process, the flux continues to fall into the receiving box 71, it is inevitable that some of the flux will roll to the right end of the receiving box 71 and accumulate near the discharge door 77. Therefore, after the slider 81 slides rightward in the chute 74 and no longer interferes with the lifting rod 75, the discharge door 77 falls to reclose the right end of the receiving box 71. After the discharge door 77 is reset, the transmission gears 98 on both sides of it are re-engaged with the corresponding tooth plates 96. Then the rotating plate 84 at the bottom of the slider 81 contacts the several wedge blocks 92 at the bottom of the slide groove 74 one by one. In this direction of movement, the rotating plate 84 is engaged with the corresponding wedge blocks 92 and will not rotate around the third axis 85, that is, the rotating plate 84 will not rotate. Therefore, in this direction, the rotating plate 84 pushes the wedge blocks 92 to slide in the corresponding inclined groove 91, and the wedge blocks 92 drive the slide rod 93 to slide inside the side of the receiving box 71 through the slide column 95. The slide rod 93 stretches the fourth spring 94 and drives the tooth plate 96 at the other end to slide. The tooth plate 96 drives the rotating shaft 97 to rotate inside the discharge door 77 through the transmission gear 98. The rotating shaft 97 drives several shifting block cams 99 to rotate. During the rotation of 99, the shift block 991 is pushed away from the push plate 994, and the shift block 991 drives the top column 992 to slide and makes the fifth spring 993 accumulate force. When the cam 99 no longer conflicts with the shift block 991, under the elastic force of the fifth spring 993, the cam 99 and the shift block 991 are synchronously close to the push plate 994 and conflict with the push plate 994, so that the top end of the push plate 994 rotates around the side of the discharge door 77. The violent flipping of the push plate 994 will push the flux gathered at the right end of the receiving box 71, so that the flux quickly disperses to the middle of the receiving box 71, reducing the accumulation of flux, thereby facilitating the crushing roller 83 to crush the flux and improving the effect of the crushing roller 83 in crushing the flux. Since the inclined slot 91 is a gradually deepening inclined slot (as shown in the attached manual), Figure 7 As the rotating plate 84 pushes the wedge 92 to slide, the wedge 92 gradually sinks into the chute 91 until the rotating plate 84 no longer contacts the wedge 92. The slider 81 then continues to drive the rotating plate 84 to the right, passing the wedge 92. Once the wedge 92 is freed from the restraint of the rotating plate 84, the fourth spring 94 pulls the slide bar 93 back to its original position. The slide bar 93, via the slide post 95, drives the wedge 92 back to the highest point of the chute 91. The return of the slide bar 93 causes the toothed plate 96 to reverse the drive gear 98, which, via the rotating shaft 97, resets all other components within the discharge door 77. When the slider rotating plate 84 contacts the next wedge 92, the above process repeats, causing the pusher plate 994 to repeatedly push the flux, reducing solder accumulation near the discharge door 77 on the right end of the receiving box 71.

[0059] During the process of the slider 81 driving the rotating plate 84 to slide toward the left end of the slide groove 74, as shown in the appended instructions, Figure 9As shown, the right end of the rotating plate 84 begins to contact the wedge 92, and in the movement in this direction, the surface where the wedge 92 contacts the right end of the rotating plate 84 is an inclined surface, which is convenient for transition. After the right end of the rotating plate 84 contacts the wedge 92, the spring 87 is compressed, so that the rotating plate 84 rotates around the third axis 85, causing the third torsion spring 86 to accumulate force, and the right end of the rotating plate 84 rotates into the interior of the slider 81, thereby easily crossing the wedge 92. Therefore, when the slider 81 slides to the left, the wedge 92 will not be pushed by the rotating plate 84.

[0060] This embodiment also discloses a welding method for a pressure vessel welding device, comprising the following steps:

[0061] S1: The end cap 22 and the cylinder 23 are aligned and placed on the auxiliary wheel 15 between the two clamps 14. The adjustment motor 12 is started. The adjustment motor 12 drives the clamp 14 to move through the screw rod 13 to stabilize the end cap 22 and the cylinder 23.

[0062] S2: Start the submerged arc welding machine 21, sprinkle flux on the gap between the head 22 and the cylinder 23, drive the motor 38 to drive the drive wheel 39 to rotate, thereby driving the head 22 and the cylinder 23 to rotate, and the submerged arc welding machine 21 welds the weld;

[0063] S3: The driving wheel 39 drives the head 22 and the cylinder 23 to rotate and drives the crushing mechanism 4 to knock the head 22 and the cylinder 23, which not only plays the role of preliminarily crushing the agglomerated flux and dispersing it, but also causes the flux to quickly fall into the box 31 through the knocking vibration;

[0064] S4: The rotation of the driving wheel 39 also drives the screening mechanism 5 to reciprocate. When the screening mechanism 5 moves to one end of the box body 31, the receiving box 71 is tilted, thereby pouring the flux received by the receiving box 71 into the screening frame 55; when the screening mechanism 5 moves to the other end of the box body 31, the receiving box 71 is restored to a horizontal level, the material discharge is stopped, and the material is received. At this time, the screening frame 55 classifies the flux, and the recyclable flux falls into the recovery box 32, and the flux that cannot be used is sent to the waste box 33;

[0065] S5: During the reciprocating motion of the screening mechanism 5 , the crushing mechanism 8 is driven to roll in the receiving box 71 , thereby crushing the compacted flux and further dispersing the compacted flux, which helps to improve the screening efficiency of the screening mechanism 5 .

[0066] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. Any obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A welding device for a pressure vessel, comprising a recovery mechanism, characterized in that: The recycling mechanism includes a box body, a recycling box is installed inside the box body, a waste box is installed on the side of the recycling box, a support frame is installed on the top side of the box body, a drive motor and a drive wheel are rotatably installed on the top of the support frame, and the drive wheel is installed at the output end of the drive motor; A screening mechanism is installed inside the box, and the screening mechanism includes a slide plate slidably connected to the inside of the box, and the end of the slide plate is rotatably connected to one end of the screening frame; A disc is mounted on one end of the driving wheel, and a first shifting rod and a second shifting rod are arranged in a circumferential array on the surface of the disc; The screening mechanism also includes a support shaft installed on the side of the support frame, a lever is rotatably connected to the support shaft, both ends of the lever are penetrated by an adjusting slot, and the second lever is slidably connected to the adjusting slot at the top of the lever, and the side protrusion of the slide is slidably connected to the adjusting slot at the bottom of the lever, two side plates are symmetrically installed on the top surface of the slide, and two first shafts are symmetrically installed on the other end of the screening frame, a first torsion spring is installed on the first shaft, and the two first shafts are elastically connected to the inside of the two ends of the door panel through the first torsion spring, and two push plates are symmetrically fixed on the top surface of the door panel, and the bottom surface of the other end of the screening frame is rotatably connected to a roller, and the roller contacts the vibration plate; A limiting mechanism is installed inside the other end of the screening frame. The limiting mechanism includes a second spring and a rack installed inside the other end of the screening frame. The rack is elastically connected to the inside of the other end of the screening frame through the second spring, and the bottom end of the rack protrudes from the bottom surface of the screening frame. A swing gear is rotatably connected inside the other end of the screening frame. The swing gear is meshed with the corresponding rack. A limiting block is fixed on the side of the swing gear, and the limiting block contacts the door panel.

2. The pressure vessel welding device according to claim 1, characterized in that: A supporting mechanism is provided on the side of the box, and the supporting mechanism includes a base installed on the side of the box, two adjusting motors are symmetrically installed at both ends of the base, two screw rods are symmetrically installed in the base, and each screw rod is respectively installed at the output end of the corresponding adjusting motor, and each screw rod is threadedly connected to a clamp, and the clamp is slidably connected to the top surface of the base, and a number of auxiliary wheels are symmetrically installed on the top surface of the base.

3. The pressure vessel welding device according to claim 2, characterized in that: A welding mechanism is installed on the side of the base, which includes a submerged arc welding machine installed on the side of the base. A head and a cylinder are respectively installed on the top surface of the base, and the head and the cylinder both abut against corresponding auxiliary wheels.

4. The pressure vessel welding device according to claim 3, characterized in that: The recycling mechanism also includes two ejectors symmetrically installed on the inner wall of the box, two sliding racks symmetrically fixed on both sides of the interior of the box, and the bottom surfaces of both sides of the slide are slidably connected to the top surfaces of the sliding racks. An oscillation plate is installed on the top of the recycling box, and one end of the driving wheel passes through the support frame.

5. The pressure vessel welding device according to claim 4, characterized in that: A crushing mechanism is installed at the top of the support frame, and the crushing mechanism includes a shell installed at the top of the support frame, a first spring is installed inside the shell, a curved rod is slidably connected to the shell, the curved rod passes through the shell, and the curved rod is elastically connected to the shell through the first spring, one end of the curved rod abuts against the first shift rod, and a pressure plate is installed at the other end of the curved rod.

6. The pressure vessel welding device according to claim 5, characterized in that: A receiving mechanism is installed inside the box, and the receiving mechanism includes a receiving box installed above the slide, a second shaft is installed at one end of the receiving box, a second torsion spring is sleeved on the second shaft, and the second shaft is elastically connected to the inside of the box through the second torsion spring, and two sliding grooves are symmetrically provided on both sides of the receiving box, and a lifting rod and a third spring are installed inside both sides of the receiving box, and the lifting rod is elastically connected to the inside of the receiving box through the third spring, and the other end of the receiving box is slidably connected to the discharge door, and the two ends of the discharge door are installed at the ends of the two lifting rods.

7. The pressure vessel welding device according to claim 6, characterized in that: A crushing mechanism is installed inside the receiving box, and the crushing mechanism includes two sliders that are respectively slidably connected to the inside of each slide groove, and each slider is rotatably connected to the top of the corresponding side plate, and a connecting plate is installed at the top of the slider, and the other end of the connecting plate is rotatably connected to one end of the crushing roller, and the crushing roller is rollingly connected to the inside of the receiving box, and a rotating plate is installed at the bottom end of the slider, and a third shaft is installed at one end of the rotating plate, and a third torsion spring is sleeved on the third shaft, and the rotating plate is elastically connected to the bottom of the slider through the cooperation of the third shaft and the third torsion spring, and a spring piece is installed inside the bottom end of the slider, and the two ends of the spring piece respectively resist the inner wall of the slider and the inner wall of the rotating plate.

8. The pressure vessel welding device according to claim 7, characterized in that: A spring mechanism is provided inside the two sides of the receiving box, and the spring mechanism includes several inclined slots equidistantly arranged at the bottom of the slide slot, and a wedge block is slidably connected in the inclined slot, and a slide rod and a fourth spring are installed inside the two sides of the receiving box, and the slide rod is elastically connected to the inside of the receiving box through the fourth spring, and several sliding columns are equidistantly installed on the top surface of the slide rod, and each wedge block is sleeved on the top of the corresponding slide column, and a tooth plate is fixed on the other end of the slide rod, and a rotating shaft is rotatably connected to the inside of the discharging door, and transmission gears are installed at both ends of the rotating shaft, and the transmission gear is meshed with the corresponding tooth plate, and several cams are equidistantly installed on the rotating shaft, and several shift blocks are equidistantly installed inside the discharging door, and each cam abuts against the corresponding shift block, and a top column is fixed on the top side of each shift block, and a fifth spring is sleeved on the top column, and the shift block is elastically connected to the inside of the discharging door through the corresponding fifth spring.

9. The welding method of the pressure vessel welding device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: The head and cylinder are aligned and placed on the auxiliary wheels between the two clamps. The adjustment motor is started, and the adjustment motor drives the clamps to move through the screw rod to stabilize the head and cylinder. S2: Start the submerged arc welding machine, sprinkle the flux on the gap between the head and the cylinder, drive the motor to drive the driving wheel to rotate, thereby driving the head and the cylinder to rotate, and the submerged arc welding machine welds the weld; S3: The driving wheel drives the head and the cylinder to rotate and drives the crushing mechanism to knock the head and the cylinder, which not only plays the role of preliminarily crushing the agglomerated flux and making it dispersed, but also makes the flux fall quickly into the box through knocking and vibration; S4: The rotation of the driving wheel also drives the screening mechanism to reciprocate. When the screening mechanism moves to one end of the box, the receiving box is tilted, thereby pouring the flux received by the receiving box into the screening frame; when the screening mechanism moves to the other end of the box, the receiving box is restored to a horizontal level, the material discharge is stopped, and the material is received. At this time, the screening frame classifies the flux. The recyclable flux falls into the recycling box, and the flux that cannot be used is sent to the waste box. S5: During the reciprocating motion of the screening mechanism, the crushing mechanism is driven to roll in the receiving box, thereby crushing the compacted flux and further dispersing the compacted flux, which helps to improve the screening efficiency of the screening mechanism.

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