A plate cutting device for pressure vessel production

Abstract

This invention relates to the field of laser cutting equipment technology, specifically disclosing a plate cutting device for pressure vessel production, including a frame, a laser cutting mechanism, and multiple support plates. The cutting grooves of adjacent support plates are staggered horizontally along the length of the frame. A cleaning device is mounted on the frame, comprising a first cleaning mechanism and a second cleaning mechanism for cleaning the cutting grooves. The second cleaning mechanism includes a rotating seat for rotating the support plates and a rotating assembly for rotating the rotating seat. The rotating seat is mounted on the frame and connected to the support plates. When the rotating assembly rotates the rotating seat, adjacent support plates rotate relative to each other, and the teeth of one support plate can rotate into the cutting groove of the other support plate to scrape away the molten slag in the cutting groove. This plate cutting device for pressure vessel production improves the ease of slag cleaning.

Description

Technical Field

[0001] This invention relates to the field of waste crushing and processing technology, specifically to a plate cutting device for pressure vessel production. Background Technology

[0002] Pressure vessels are closed devices that hold gases or liquids and withstand a certain pressure. To more effectively implement scientific management and safety supervision, my country's "Safety Supervision Regulations for Pressure Vessels" classifies pressure vessels into three categories based on working pressure, the hazard of the medium, and its role in production. These categories are: according to the pressure level they withstand—low-pressure vessels, medium-pressure vessels, high-pressure vessels, and ultra-high-pressure vessels; according to the medium they contain—non-flammable, non-toxic, flammable or toxic, and highly toxic; and according to their role in the process—reaction vessels, heat exchange vessels, separation vessels, and storage and transportation vessels. The manufacturing process of pressure vessels generally includes: raw material acceptance, scribing, cutting, rust removal, machining (including edge planing), rolling, assembly, welding (product welding test plates), non-destructive testing, drilling and scribing, final inspection, heat treatment, pressure testing, and corrosion prevention.

[0003] In the manufacturing process of pressure vessels, laser cutting machines are used to cut the sheet metal. The laser cutting machine focuses the laser emitted from the laser into a high-power-density laser beam through an optical path system. The laser beam irradiates the surface of the workpiece, causing the workpiece to reach its melting or boiling point. At the same time, high-pressure gas coaxial with the beam blows away the molten or vaporized metal. As the relative position of the beam and the workpiece moves, a kerf is eventually formed in the material, thus achieving the purpose of cutting. The laser cutting machine includes a frame, a laser cutting mechanism, and a support plate for supporting the sheet metal. The support plate has cutting grooves.

[0004] Chinese patent application CN118951408 A discloses a laser cutting machine for metal sheets, including a laser cutting machine body; a nozzle is threadedly installed at the bottom of the cutting head of the laser cutting machine body; a support plate is fixedly connected to the top surface of one end of the laser cutting machine body; multiple replacement units are evenly arranged on the top surface of the support plate; each replacement unit includes a strip-shaped outer shell fixed to the top surface of the support plate; a disassembly cavity is opened inside the strip-shaped outer shell near the middle of the laser cutting machine body; an installation cavity is opened at the end of the strip-shaped outer shell away from the middle of the laser cutting machine body; the top surface of the middle of the disassembly cavity... Both the mounting cavity and the mounting cavity have circular through slots on their top surfaces near the middle of the laser cutting machine body; a driving cavity is provided between the disassembly cavity and the mounting cavity; a driving assembly is provided inside the driving cavity; a disassembly drum is rotatably mounted inside the disassembly cavity; a clamping assembly is provided on the top of the disassembly drum; a mounting rotating seat is provided inside the mounting cavity; a groove matching the nozzle is provided on the top of the mounting rotating seat; a new nozzle is provided in the groove on the top of the mounting rotating seat; the driving assembly can drive the disassembly drum and the mounting rotating seat to rotate.

[0005] During operation, when a nozzle on the laser cutting machine body is damaged, it needs to be replaced. At this time, the damaged nozzle moves above the support plate and aligns with the circular slot at the top of the disassembly chamber. The damaged nozzle descends, inserting into the center of the top surface of the disassembly drum, where the clamping assembly holds and fixes it. The drive assembly drives the disassembly drum to rotate, causing the damaged nozzle to rotate via the clamping assembly, thus removing the damaged nozzle. Afterward, the cutting head of the laser cutting machine body rises and moves to the circular slot in the mounting chamber. Then, the cutting head descends, aligning with the new nozzle on the mounting base. Simultaneously, the drive assembly drives the mounting base to rotate, causing the new nozzle to rotate and be threaded onto the bottom of the cutting head. When cutting sheet metal, the sheet metal is placed on the laser cutting machine body for cutting.

[0006] In the aforementioned technology, the laser cutting machine body has a support plate for supporting the sheet metal. During the laser cutting process, molten slag will fall onto the support plate, and manual cleaning of multiple support plates is required afterward using tools, which makes slag cleaning inconvenient. Summary of the Invention

[0007] This invention provides a plate cutting device for pressure vessel production, aiming to solve the technical problem in the prior art where the laser cutting machine body has a support plate for supporting the plate, and during the laser cutting process, molten slag falls onto the support plate, requiring manual cleaning of multiple support plates in sequence, which makes slag cleaning inconvenient.

[0008] This invention discloses a plate cutting device for pressure vessel production, comprising a frame, a laser cutting mechanism mounted on the frame, and multiple support plates. Each support plate has a cutting groove. The cutting grooves of adjacent support plates are staggered horizontally along the length of the frame. A cleaning device is mounted on the frame. The cleaning device includes a first cleaning mechanism mounted on the support plates for cleaning the sides of the support plates and a second cleaning mechanism for cleaning the cutting grooves. The second cleaning mechanism includes a rotating seat for rotating the support plates and a rotating assembly for rotating the rotating seat. The rotating seat is mounted on the frame and connected to the support plates. When the rotating assembly rotates the rotating seat, adjacent support plates rotate relative to each other, and the teeth of one support plate can rotate into the cutting groove of the other support plate to scrape away the molten slag within the cutting groove.

[0009] Beneficial effects: By setting up the cleaning device, when it is necessary to clean the slag on the support plate, the first cleaning mechanism is activated to clean the slag on the side of the support plate. The second cleaning mechanism is activated, and the rotating component drives the rotating seat to rotate. When the rotating seat rotates, it drives the support plate to rotate. Since the cutting grooves of the two adjacent support plates are staggered in the horizontal direction, when the two adjacent support plates rotate relative to each other, the teeth of one support plate can rotate into the cutting groove of the other support plate to scrape off the slag in the cutting groove, which can improve the convenience of slag cleaning.

[0010] Preferably, the rotating assembly includes a rotating rod for driving the rotating seat to rotate and a gear for driving the rotating rod to rotate.

[0011] Preferably, the support plates are provided in multiple sets, each set including two support plates arranged along the length of the frame and with the cutting grooves intersecting in the horizontal direction.

[0012] Beneficial effects: When the cutting area on the frame is divided into multiple sections, multiple sets of support plates are set up, each corresponding to a cutting area. When the sheet material is cut in the corresponding cutting area, only the corresponding support plate needs to be cleaned, instead of cleaning all the support plates, making the operation convenient.

[0013] Preferably, the support plate is movably fitted to the frame along the length of the frame, and the frame is provided with an adjustment device, which includes a rotation mechanism for driving the gear to rotate and an adjustment mechanism for adjusting the distance between two adjacent support plates.

[0014] Beneficial effects: By adjusting the device, the rotating mechanism can drive the gear to rotate, thereby realizing the relative rotation between two adjacent support plates. At the same time, the distance between the two adjacent support plates can be adjusted by the adjusting mechanism. When the two adjacent support plates move away from each other, larger cutting waste can fall through the distance between the two support plates. When the two adjacent support plates move closer to each other, the two support plates rotate at the same time, and the teeth of one support plate can rotate into the cutting groove of the other support plate, which can realize the scraping of molten slag in the cutting groove.

[0015] Preferably, the rotating mechanism includes a support rod disposed on the frame and a rack mounted on the support rod, the rack meshing with a gear.

[0016] Preferably, the adjustment mechanism includes an adjustment component for adjusting the distance between two adjacent support plates and a lifting component for driving the adjustment component to rise and fall.

[0017] Preferably, the adjustment assembly includes a support frame and an adjustment rod for driving the support plate to slide, one end of the adjustment rod being rotatably engaged with the support frame and the other end being rotatably engaged with the rotating seat.

[0018] Preferably, the lifting assembly includes a lifting frame that slides vertically onto the frame and a drive unit mounted on the frame for lifting the lifting frame, wherein the support frame is disposed on the lifting frame.

[0019] Preferably, the support frame slides along the length of the frame to engage with the lifting frame, and a second driver is provided between two adjacent support frames to drive the two adjacent support frames to slide in a direction that moves closer to or further away from each other.

[0020] Beneficial effect: By setting up driver two and activating driver two, the distance between two adjacent sets of support plates can be adjusted, so that larger cutting waste can fall between the two adjacent sets of support plates.

[0021] Preferably, the cleaning mechanism includes a fixed sleeve disposed on a rotating seat and a scraper for cleaning the side of the support plate, the scraper slidingly engaging with the fixed sleeve along the height direction of the support plate.

[0022] Beneficial effects: By sliding the scraper towards the top of the support plate, the molten slag on the side of the support plate can be scraped off, making the operation convenient.

[0023] The beneficial effects of this invention are as follows:

[0024] 1. In this invention, by setting up a cleaning device, when it is necessary to clean the slag on the support plate, the first cleaning mechanism is activated to clean the slag on the side of the support plate, and the second cleaning mechanism is activated to drive the rotating seat to rotate through the rotating component. When the rotating seat rotates, it drives the support plate to rotate. Since the cutting grooves of the two adjacent support plates are staggered in the horizontal direction, when the two adjacent support plates rotate relative to each other, the teeth of one support plate can rotate into the cutting groove of the other support plate to scrape off the slag in the cutting groove, which can improve the convenience of slag cleaning.

[0025] 2. In this invention, when the cutting area on the frame is divided into multiple sections, multiple sets of support plates are set up, with each set of support plates corresponding to a cutting area. When the sheet material is cut in the corresponding cutting area, only the corresponding support plate needs to be cleaned, and it is not necessary to clean all the support plates, making the operation convenient.

[0026] 3. In this invention, by setting the adjustment device, the rotating mechanism can drive the gear to rotate, thereby realizing the relative rotation between two adjacent support plates. At the same time, the adjustment mechanism can adjust the distance between two adjacent support plates. When the two adjacent support plates move away from each other, larger cutting waste can fall through the distance between the two support plates. When the two adjacent support plates move closer to each other, the two support plates rotate at the same time, and the teeth of one support plate can rotate into the cutting groove of the other support plate, which can realize the scraping of slag in the cutting groove. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0028] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle.

[0029] Figure 3 This is a structural schematic diagram illustrating the positional relationship between two adjacent support plates according to the present invention.

[0030] Figure 4 This is a schematic diagram of the structure of the present invention, showing two adjacent support plates rotated to a horizontal state.

[0031] Figure 5 This is a structural schematic diagram illustrating the connection relationship between the cleaning device and the adjusting device according to the present invention.

[0032] Figure 6 yes Figure 5 A magnified view of a section at point B.

[0033] Figure label:

[0034] 1. Frame; 2. Laser cutting mechanism; 3. Support plate; 31. Cutting groove; 4. Cleaning device; 41. Rotating seat; 42. Rotating assembly; 421. Rotating rod; 422. Gear; 43. Fixing sleeve; 44. Scraper; 5. Adjusting device; 51. Support rod; 52. Rack; 53. Adjusting assembly; 531. Support frame; 532. Adjusting rod; 54. Lifting assembly; 541. Lifting frame; 542. Driver 1; 6. Driver 2; 7. Conveying device; 71. Mounting frame; 72. Conveying roller; 8. Inclined guide plate; 9. Collection cart. Detailed Implementation

[0035] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0036] Reference Figures 1-6 The present invention discloses a plate cutting device for pressure vessel production, comprising a frame 1, a laser cutting mechanism 2 mounted on the frame 1, multiple support plates 3, and a cleaning device 4. Cutting grooves 31 are formed on the support plates 3, and the cutting grooves 31 of adjacent support plates 3 are staggered horizontally along the length of the frame 1 (as shown in the diagram). Figure 3 As shown), the support plate 3 is provided in multiple sets. Each set includes two support plates 3 arranged along the length of the frame 1 and with the cutting grooves 31 intersecting in the horizontal direction. The frame 1 is provided with multiple cutting areas, which are spaced apart along the length of the frame 1. Each cutting area corresponds to two sets of support plates 3. The cleaning device 4 is used to clean the slag on the support plate 3. When the plate needs to be cut, the plate is first placed on the support plate 3. Then the laser cutting mechanism 2 moves to the plate and cuts it. After the plate is cut, it is conveyed out. Then the cleaning device 4 is started to clean the slag on the support plate 3.

[0037] Reference Figure 1 and Figure 2A conveying device 7 is provided on the frame 1. The conveying device 7 includes a mounting frame 71 fixedly installed on the frame 1 and a conveying roller 72 rotatably engaged with the mounting frame 71. Two inclined guide plates 8 are fixedly installed below the cutting area on the frame 1. The two inclined guide plates 8 are arranged opposite each other along the width direction of the frame 1 and have an inverted "V" shape. A collection cart 9 is provided below the two inclined guide plates 8 on the frame 1. During the plate cutting process, the waste generated and the slag cleaned from the support plate 3 can fall from the frame 1 and slide into the collection cart 9 along the inclined guide plates 8. The waste is collected by the collection cart 9, and the waste in the collection cart 9 can be cleaned up in time by moving the collection cart 9 and dumping it.

[0038] Reference Figure 5 and Figure 6 The cleaning device 4 includes a first cleaning mechanism disposed on the support plate 3 for cleaning the side of the support plate 3 and a second cleaning mechanism for cleaning the cutting groove 31. The second cleaning mechanism includes a rotating seat 41 for driving the support plate 3 to rotate and a rotating assembly 42 for driving the rotating seat 41 to rotate. The rotating seat 41 is disposed on the frame 1 and is fixedly connected to the support plate 3. When the rotating assembly 42 drives the rotating seat 41 to rotate, the two adjacent support plates 3 rotate relative to each other, and the teeth of one support plate 3 can rotate into the cutting groove 31 of the other support plate 3 to scrape off the slag in the cutting groove 31.

[0039] Among them, reference Figure 5 and Figure 6 The cleaning mechanism includes a fixed sleeve 43 fixedly mounted on the rotating seat 41 and a scraper 44 for cleaning the side of the support plate 3. The top of the scraper 44 is a pointed tip, and the side of the scraper 44 close to the side of the support plate 3 is attached to the side of the support plate 3. The scraper 44 slides along the height direction of the support plate 3 and is fitted to the fixed sleeve 43. A driver 3 (not shown in the figure) for driving the scraper 44 to move up and down in the vertical direction can be installed on the fixed sleeve 43. The driver 3 can be a hydraulic cylinder or a pneumatic cylinder. When it is necessary to clean the slag on the side of the support plate 3, the driver 3 is activated, and the driver 3 drives the scraper 44 to rise and clean the slag on the side of the support plate 3.

[0040] Reference Figure 5 and Figure 6 The rotating assembly 42 includes a rotating rod 421 for driving the rotating seat 41 to rotate and a gear 422 for driving the rotating rod 421 to rotate. The rotating rod 421 is fixedly connected to the rotating seat 41, and the gear 422 is fixedly connected to the rotating rod 421. A limiting frame (not shown in the figure) is provided on the frame 1 to limit the movement of the gear 422. The gear 422 can only slide and rotate within the limiting frame along the length direction of the frame 1.

[0041] Reference Figure 5 and Figure 6 The support plate 3 is movably fitted to the frame 1 along the length direction of the frame 1. The frame 1 is provided with an adjustment device 5. The adjustment device 5 includes a rotating mechanism for driving the gear 422 to rotate and an adjustment mechanism for adjusting the distance between two adjacent support plates 3. The rotating mechanism includes a support rod 51 fixedly installed on the frame 1 and a rack 52 fixedly installed on the support rod 51. The support rod 51 is set as an "L" shaped rod, and the rack 52 meshes with the gear 422.

[0042] Reference Figure 5 and Figure 6 The adjustment mechanism includes an adjustment component 53 for adjusting the distance between two adjacent support plates 3 and a lifting component 54 for driving the adjustment component 53 to rise and fall. The lifting component 54 includes a lifting frame 541 that slides vertically on the frame 1 and a driver 542 that is fixedly installed on the frame 1 and is used to drive the lifting frame 541 to rise and fall. The driver 542 directly adopts a hydraulic cylinder. The cylinder body of the driver 542 is fixedly connected to the frame 1, and the piston rod of the driver 542 is fixedly connected to the lifting frame 541. The lifting frame 541 is configured with a U-shaped structure.

[0043] Reference Figure 5 and Figure 6 The adjustment assembly 53 includes a support frame 531 and two adjustment rods 532 for driving the support plate 3 to slide. The lifting frame 541 has a T-shaped groove along the length of the frame 1. The support frame 531 is slidably fitted in the T-shaped groove of the lifting frame 541. One end of the adjustment rod 532 is rotatably fitted with the support frame 531, and the other end is rotatably fitted with the rotating seat 41. A second driver 6 is provided between two adjacent support frames 531 for driving the two adjacent support frames 531 to slide in a direction that moves closer or further away from each other. The second driver 6 is directly a hydraulic cylinder, and both ends of the second driver 6 are fixedly connected to the two support frames 531 respectively.

[0044] The implementation principle of the plate cutting device for pressure vessel production of the present invention is as follows: when the plate needs to be cut, the plate is first placed on the support plate 3, and the plate slides on the conveying roller 72. After the plate moves to the cutting area, the laser cutting mechanism 2 moves to the plate and cuts the plate. After the plate is cut, the plate is conveyed out to complete the laser cutting of the plate.

[0045] When it is necessary to clean up the larger waste on the support plate 3, first start the driver 542. The driver 542 drives the lifting frame 541 to rise, and the lifting frame 541 drives the support frame 531 to rise. When the support frame 531 rises, it can drive the bottom end of the adjusting rod 532 to rise and rotate at the same time. The top end of the adjusting rod 532 drives the rotating seat 41 to slide. At this time, the two rotating seats 41 move in a direction away from each other. The rotating seat 41 drives the rotating rod 421 to move. The rotating rod 421 drives the gear 422 to move. The gear 422 moves while sliding and rotating. At this time, the two support plates 3 slide and rotate in opposite directions, and the distance between the two adjacent support plates 3 increases. At the same time, start the driver 6. The driver 6 drives the two adjacent sets of support plates 3 to slide in a direction away from each other, and the distance between the two sets of support plates 3 increases, so that the waste can fall through the gap between the two adjacent support plates 3.

[0046] After the waste falls, start driver 542. Driver 542 drives the lifting frame 541 to descend. The lifting frame 541 drives the support frame 531 to descend. When the support frame 531 descends, it can drive the bottom end of the adjusting rod 532 to descend and rotate. The top end of the adjusting rod 532 drives the rotating seat 41 to slide. At this time, the two rotating seats 41 move towards each other. The rotating seat 41 drives the rotating rod 421 to move. The rotating rod 421 drives the gear 422 to move. The gear 422 moves while sliding and rotating. At this time, the two support plates 3 slide and rotate in the same direction. When the two adjacent support plates 3 are reset, start driver 3. Driver 3 drives the scraping plate 44 to rise and clean the slag on the side of the support plate 3.

[0047] Then, the two support plates 3 continue to slide and rotate in the same direction, and the distance between the two support plates 3 decreases. At the same time, the second driver 6 is activated. The second driver 6 drives the two adjacent sets of support plates 3 to slide in a direction closer to each other, and the distance between the two sets of support plates 3 decreases. When the tooth of one support plate 3 is inserted into the cutting groove 31 of the other support plate 3 (its state is as follows) Figure 4 As shown), it can scrape off the slag in the cutting groove 31 of two adjacent support plates 3. After the slag on the support plate 3 is cleaned, the support plate 3 is reset.

[0048] During the plate cutting process, the waste generated and the slag cleaned from the support plate 3 can fall off the frame 1 and slide into the collection car 9 along the inclined guide plate 8. The waste is collected by the collection car 9, and the waste can be cleaned up in time by moving the collection car 9 and dumping it.

[0049] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0050] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A plate cutting device for pressure vessel production, comprising a frame (1), a laser cutting mechanism (2) mounted on the frame (1), and a plurality of support plates (3), wherein the support plates (3) are provided with cutting grooves (31), characterized in that, The cutting grooves (31) of two adjacent support plates (3) along the length of the frame (1) are staggered in the horizontal direction. A cleaning device (4) is provided on the frame (1). The cleaning device (4) includes a cleaning mechanism 1, which is provided on the support plate (3) and is used to clean the side of the support plate (3), and a cleaning mechanism 2, which is used to clean the cutting grooves (31). The cleaning mechanism 2 includes a rotating seat (41) for driving the support plate (3) to rotate and a rotating assembly (42) for driving the rotating seat (41) to rotate. The rotating seat (41) is provided on the frame (1) and is connected to the support plate (3). (42) When the rotating seat (41) is rotated, the two adjacent support plates (3) rotate relative to each other, and the teeth of one support plate (3) can rotate into the cutting groove (31) of the other support plate (3) to scrape off the slag in the cutting groove (31); the rotating assembly (42) includes a rotating rod (421) for rotating the rotating seat (41) and a gear (422) for rotating the rotating rod (421); the support plate (3) is movably fitted to the frame (1) along the length direction of the frame (1), and an adjustment device (5) is provided on the frame (1). The adjustment device (5) includes a rotating mechanism for rotating the gear (422) and a gear for rotating the gear (422). An adjustment mechanism for adjusting the distance between two adjacent support plates (3); the adjustment mechanism includes an adjustment component (53) for adjusting the distance between two adjacent support plates (3) and a lifting component (54) for driving the adjustment component (53) to rise and fall; the adjustment component (53) includes a support frame (531) and an adjustment rod (532) for driving the support plate (3) to slide; the support frame (531) slides along the length of the frame (1) and is fitted with the lifting frame (541), and a space is provided between two adjacent support frames (531) for driving the two adjacent support frames (531) to slide in a direction that moves closer to or further away from each other. Driver 2 (6); The frame (1) is provided with multiple cutting areas, each cutting area corresponding to two sets of support plates (3); Cleaning mechanism 1 includes a fixed sleeve (43) set on the rotating seat (41) and a scraper (44) for cleaning the side of the support plate (3). The scraper (44) slides along the height direction of the support plate (3) and is fitted with the fixed sleeve (43); The top of the scraper (44) is set as a pointed tip, and the side of the scraper (44) close to the side of the support plate (3) is attached to the side of the support plate (3); Driver 3 is installed on the fixed sleeve (43) for driving the scraper (44) to move up and down in the vertical direction.

2. The plate cutting device for pressure vessel production according to claim 1, characterized in that, The support plate (3) is provided in multiple sets, each set including two support plates (3) arranged along the length direction of the frame (1) and the cutting grooves (31) are staggered in the horizontal direction.

3. The plate cutting device for pressure vessel production according to claim 1, characterized in that, The rotating mechanism includes a support rod (51) mounted on the frame (1) and a rack (52) mounted on the support rod (51), the rack (52) meshing with a gear (422).

4. The plate cutting device for pressure vessel production according to claim 3, characterized in that, One end of the adjusting rod (532) is rotatably engaged with the support frame (531), and the other end is rotatably engaged with the rotating seat (41).

5. The plate cutting device for pressure vessel production according to claim 4, characterized in that, The lifting assembly (54) includes a lifting frame (541) that slides vertically on the frame (1) and a drive unit (542) mounted on the frame (1) for driving the lifting frame (541) to lift. A support frame (531) is provided on the lifting frame (541).

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