Galvanized steel sheet cutting system

Abstract

The invention discloses a galvanized steel sheet cutting system, and relates to the technical field of galvanized steel sheet cutting. The galvanized steel sheet cutting system comprises a workbench, a plasma arc cutting machine is arranged on the workbench, and the plasma arc cutting machine is used for cutting a large galvanized steel sheet into a slitting plate in a preset shape; and the bearing assemblies are evenly distributed on the workbench and comprise a bearing plate and a plurality of circular push plates arranged on the bearing plate, the circular push plates are evenly distributed along the bearing plate and can ascend and descend, the bearing plate is used for supporting the galvanized steel sheet to be machined, and the circular push plates can upwards push out the separated slitting plates after cutting is completed. The bearing assemblies are evenly arranged on the workbench, the circular push plate capable of ascending and descending is used for ejecting the slitting plate out immediately after the slitting plate is cut and separated, rapid separation of the slitting plate from an original galvanized steel plate is achieved, and transmission of vibration to separated workpieces in the subsequent cutting process is effectively isolated; scratch and deformation caused by the fact that the plate shakes and makes contact with an original galvanized steel plate are avoided.

Description

Technical Field

[0001] This invention relates to the field of galvanized steel sheet cutting technology, specifically to a galvanized steel sheet cutting system. Background Technology

[0002] Galvanized steel sheet is a metallic material in which a zinc layer is coated on the surface of steel sheet to enhance corrosion resistance and extend service life. It is widely used in construction, transportation, and machinery. In the manufacture of products such as ventilation ducts and equipment housings, plasma arc cutting technology is often used to cut a whole galvanized steel sheet into several small rectangular plates with semi-circular transitions at both ends. This shape structure has high structural strength and space utilization, and facilitates subsequent splicing, welding and other operations.

[0003] However, the following problems still exist in the process of plasma arc cutting galvanized steel sheets: 1. In traditional cutting processes, although the slitting plate has been partially separated, it still remains on the original galvanized steel plate. During subsequent continuous cutting, the vibration of the original galvanized steel plate can easily cause the cut workpiece to wobble slightly, rubbing against the surrounding plates and causing surface scratches. In severe cases, it can lead to edge deformation or burr regeneration, directly affecting the dimensional accuracy and surface quality of the workpiece.

[0004] 2. In addition, conventional support structures only provide support for the lower part of the plate and lack dynamic clamping for the cutting area. When a part of the plate is cut and separated, the stiffness of the remaining structure decreases significantly, forming a weak area. If there is no effective limit, it is very easy to warp or shift under thermal stress and mechanical vibration, which will affect the accuracy of the subsequent cutting path and reduce the overall processing accuracy.

[0005] 3. Existing processes generally adopt a step-by-step approach of cutting and grinding. That is, after all the slit plates are cut, they are then deburred. This method requires additional process steps and equipment investment, and it relies on manual picking and transportation, which is inefficient. In addition, when cutting multiple pieces continuously, if the separated slit plates are not positioned and isolated in a timely and effective manner, they are prone to displacement due to subsequent cutting vibrations, resulting in collisions or scratches, which affect the cutting quality and the consistency of subsequent processing. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a galvanized steel sheet cutting system that solves the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a galvanized steel sheet cutting system, comprising: a worktable, on which a plasma arc cutting machine is mounted for cutting large galvanized steel sheets into slits of predetermined shapes; a support assembly, evenly distributed on the worktable, including a support plate and multiple circular push plates mounted thereon, the circular push plates being evenly arranged along the support plate and capable of rising and falling, the support plate supporting the galvanized steel sheet to be processed, and the circular push plates being able to push the separated slits upwards after cutting; a pressure plate, mounted on the circular push plates, which simultaneously presses against the perimeter of the original galvanized steel sheet cutting area when the circular push plates rise to push out the slits; a grinding assembly, connected to the plasma arc cutting machine, capable of simultaneously clamping, positioning, and automatically collecting the pushed-out slits, and reciprocatingly grinding the cut burrs on the upper, lower, and side surfaces of the slits while performing the next cutting operation; and rotating rollers, evenly distributed circumferentially along the slits, capable of rotating actively.

[0008] Furthermore, the polishing assembly includes a polishing layer disposed on the outer side of the rotating roller, which is capable of rotating and polishing the slitting plate.

[0009] Furthermore, the polishing assembly also includes an annular polishing belt, with auxiliary rollers arranged between adjacent rotating rollers. The annular polishing belt is wound around the outer periphery of each rotating roller and the auxiliary roller. The annular polishing belt can perform flexible wrapping polishing on the sides and upper and lower surfaces of the slitting plate.

[0010] Furthermore, the upper and lower ends of the rotating roller are respectively provided with limiting discs. The side of the limiting disc near the cutting plate is inclined upward. The limiting disc is provided with a sliding groove that slides with the end of the rotating roller. A connecting spring connected to the end of the rotating roller is provided in the sliding groove.

[0011] Furthermore, a rotating rod is installed on the upper end of the rotating roller, and a chain plate is arranged above the rotating rod. The rotating rod and the chain plate are rotatably connected. A rotating gear located above the chain plate is fitted on the upper end of the rotating rod. A rack ring that meshes with the rotating gear is fitted on the outer side of the annular plate. The rack ring is fixedly installed on the lower end of the top plate. A chain ring that slides with the top plate is fitted on the outer side of the chain plate. Incomplete gears mesh with the outer edge of the left section and the inner edge of the right section of the chain plate, respectively. A rotating shaft that is rotatably connected to the top plate is installed on the upper end of the incomplete gear. A pulley located above the top plate is installed on the upper end of the rotating shaft. The left and right pulleys are connected by belt drive. The pulley on the right side is connected to the output shaft of the drive motor.

[0012] Furthermore, a grinding roller is provided between adjacent rotating rollers. The grinding rollers are evenly distributed along the circumference of the slitting plate and can move up and down reciprocally. A vertical rod is installed at the upper end of the grinding roller and slides up and down with the chain plate. An extension plate is installed at the upper end of the vertical rod and a fixed rod is installed at the lower end of the extension plate. An annular plate is fixedly fitted on the outer side of the rack ring. The annular plate has a continuously undulating groove that slides with the fixed rod.

[0013] Furthermore, a pressing plate is provided below the top plate, and a control rod that slides up and down with the top plate is installed on the upper end of the pressing plate. A compression spring is sleeved on the outside of the control rod between the top plate and the pressing plate.

[0014] Furthermore, the pressure plate is rotatably connected to the circular push plate via a torsion spring shaft, and the support plate is provided with a clearance groove for avoiding the pressure plate, and a stop plate is installed at the lower end of the pressure plate.

[0015] Furthermore, a support column is installed at the lower end of the circular push plate, which slides up and down with the support plate, and a support spring connected to the support plate is sleeved on the outside of the support column.

[0016] Furthermore, a fixing ring is installed on the outside of the plasma arc cutting machine, and a guide groove is opened on the fixing ring. A guide post that slides with the guide groove is rotatably installed on the upper end of the top plate. The upper end of the guide post is hinged to the telescopic end of the elastic telescopic plate. The other end of the elastic telescopic plate is fixedly installed on the rotating disk, and the rotating disk can rotate actively.

[0017] The present invention has the following beneficial effects: (1) The galvanized steel plate cutting system uses a lifting circular pusher plate to push the slitting plate out immediately after it is cut and separated, thereby achieving rapid separation from the original galvanized steel plate. This not only effectively isolates the transmission of vibration to the separated workpiece during subsequent cutting, but also avoids scratches and deformation caused by the contact between the plate and the original galvanized steel plate due to the shaking of the plate, significantly improving the integrity of the cut surface and the edge quality. At the same time, it reduces manual intervention and improves the continuity of operation and production efficiency.

[0018] (2) The galvanized steel plate cutting system sets pressure plate and abutment plate on the circular push plate. During the process of pushing out the cutting plate, the pressure plate presses the upper surface of the original galvanized steel plate cutting area, and the abutment plate limits its side, forming a multi-point coordinated constraint in the upper and lower and lateral directions. This effectively suppresses deformation, displacement or vibration caused by local thinning of the plate and reduction of stiffness, and significantly improves the structural stability during the cutting process.

[0019] (3) The galvanized steel plate cutting system, by setting up a grinding component linked with the plasma arc cutting machine, can, while the cutting head moves to the next cutting area, work with the bearing component of the target area to clamp and position the ejected slit plate, automatically collect it, and reciprocate grinding the upper, lower, and side cutting burrs. The three operations are carried out simultaneously, making full use of the cutting gap time to complete the deburring process without additional machine stoppage, which significantly improves the overall processing efficiency. In addition, the slit plate enters a restricted state after being ejected, which can avoid the collision damage caused by free placement, improve the stability and uniformity of the slit plate during the grinding process, and effectively ensure the consistency of edge quality.

[0020] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the workbench and the support assembly in this invention; Figure 3 This is a cross-sectional view of the support plate in this invention; Figure 4 This is a schematic diagram of the circular push plate, pressure plate, and abutment in this invention; Figure 5 This is a schematic diagram of the structure of the plasma arc cutting machine and grinding assembly of the present invention; Figure 6 This is a schematic diagram of the structure of the top plate, guide column, and elastic telescopic plate in this invention; Figure 7 This is a schematic diagram of the structure of the pressing plate, rotating gear and rack ring in this invention; Figure 8 This is a schematic diagram of the incomplete gear and chain plate in this invention; Figure 9 This is a partial cross-sectional view of the fixing rod and the mating groove in this invention; Figure 10 This is a schematic diagram of the structure of the rotating roller, the limiting disk, and the grinding roller in Embodiment 1 of the present invention; Figure 11 This is a partial cross-sectional view of the limiting disk in this invention; Figure 12 for Figure 11 A schematic diagram of a half-section planar structure; Figure 13 This is a partial structural schematic diagram of the polishing component in Embodiment 2 of the present invention; Figure 14 This is a schematic diagram of the structure of the rotating roller, auxiliary roller and annular grinding belt in Embodiment 2 of the present invention.

[0022] In the diagram: 1. Workbench; 2. Plasma arc cutting machine; 3. Bearing assembly; 31. Support plate; 32. Circular push plate; 33. Support column; 34. Support spring; 35. Pressure plate; 36. Backing plate; 4. Grinding assembly; 41. Rotating roller; 411. Limiting disc; 412. Slide groove; 413. Connecting spring; 414. Rotating rod; 415. Chain plate; 416. Rotating gear; 417. Rack ring; 418. Top plate; 419. Chain link; 420. (Incomplete) 421. Gear; 422. Pulley; 423. Belt; 424. Drive motor; 425. Grinding roller; 426. Vertical rod; 427. Extension plate; 428. Fixing rod; 429. Annular plate; 430. Mating groove; 431. Pressing plate; 432. Control rod; 433. Compression spring; 434. Fixing ring; 435. Guide column; 436. Elastic telescopic plate; 437. Limiting rod; 438. Limiting groove; 439. Annular grinding belt; 440. Auxiliary roller. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0025] The following is based on Figures 1-14 This invention describes a galvanized steel sheet cutting system provided in an embodiment of the invention.

[0026] Example 1, this example refers to Figures 1-12 .

[0027] Please refer to Figure 1This invention provides a galvanized steel sheet cutting system, including a worktable 1, on which a plasma arc cutting machine 2 is mounted. The plasma arc cutting machine 2 consists of a cutting head, a moving system that drives its movement, and a control unit. The moving system includes guide rails and a transmission mechanism arranged along the X and Y axes, which drive the cutting head to move precisely in the horizontal plane. The Z-axis mechanism adjusts the height of the cutting head. Driven by the moving system, the cutting head cuts the galvanized steel sheet according to a preset trajectory. The control unit receives processing instructions and coordinates the movement of each axis to ensure the precise operation of the cutting head. When cutting begins, the cutting head moves down to a set appropriate distance to cut a large piece of galvanized steel sheet. After cutting one sheet, it moves up and horizontally to the next area, and then moves down again to cut. This cycle continues, continuously and stably cutting a large piece of galvanized steel sheet into several small rectangular sheets with semi-circular transitions at both ends.

[0028] Please refer to Figure 2 To maintain the stability of the galvanized steel sheet during the cutting process, multiple sets of evenly distributed bearing components 3 are set on the workbench 1. The bearing components 3 include a support plate 31 and multiple circular push plates 32 on it. The support plate 31 is fixedly connected to the workbench 1 and is used to support the galvanized steel sheet to be processed, providing uniform bearing force. The circular push plates 32 can be raised and lowered. During cutting, they are in the lowered position. After cutting, they can push the separated cutting plate upward away from the original galvanized steel sheet. It should be noted that the arrangement of the support plate 31 and the circular push plates 32 does not interfere with the cutting trajectory, ensuring that the cutting operation is continuous and smooth.

[0029] For details, please refer to Figure 3 and Figure 4 The lower end of the circular push plate 32 is equipped with a support column 33 that slides up and down with the support plate 31. The support column 33 is fitted with a support spring 34 connected to the support plate 31. Initially, the circular push plate 32 is pressed down into the support plate 31 by the gravity of the galvanized steel plate, and the support spring 34 is stretched and stores energy. When the slitting plate is completely cut by the plasma arc cutting machine 2, the gravity constraint in the corresponding area disappears, the support spring 34 releases elastic force, pushes the support column 33 to drive the circular push plate 32 to move up, and smoothly pushes the slitting plate out.

[0030] Multiple circular push plates 32 are evenly arranged around the circumference of the cutting plate. After cutting, they move upward synchronously under the action of the support spring 34 to achieve multi-point balanced lifting, which effectively improves the stability of the cutting plate ejection process. In addition, the elastic potential energy of the support spring 34 is moderate, which is sufficient to push the cutting plate away from the original galvanized steel plate, but will not apply too much impact force to cause deformation. This lifting process not only does not affect the normal separation of the cutting plate, but also provides a slight pushing effect at the end of the cutting process, which helps to speed up the separation process.

[0031] The slitting plate that is promptly removed from the original galvanized steel sheet can effectively isolate the transmission of subsequent cutting vibrations, reduce frictional scratches caused by the contact between the sheet and the original galvanized steel sheet, ensure the quality of the cut surface, and at the same time, eliminate the need for manual material handling, thereby improving the efficiency of the cutting operation.

[0032] Please refer to Figure 3 and Figure 4 To maintain the stability of the original galvanized steel sheet cutting area after the slitting plate is pushed away, a pressure plate 35 is also provided on the circular push plate 32. The pressure plate 35 is rotatably connected to the circular push plate 32 through a torsion spring shaft. Initially, the pressure plate 35 tends to tilt downward under the action of the torsion spring shaft. The support plate 31 is provided with a clearance groove for avoiding the pressure plate 35. When the pressure plate 35 descends with the push plate, it is embedded in the clearance groove and does not interfere with the support of the galvanized steel sheet. When the circular push plate 32 rises and pushes out the slitting plate, the pressure plate 35 moves upward synchronously. After contacting the bottom surface of the original galvanized steel sheet, it is pressed and rotates around the torsion spring shaft. As it continues to rise, it can move to the upper surface of the original galvanized steel sheet and can press the periphery of the cutting area under the restoring force of the torsion spring shaft.

[0033] Furthermore, a stop plate 36 is installed at the lower end of the pressure plate 35. The stop plate 36 can move upward synchronously and stop the circumferential side of the cutting area. Together with the pressure plate 35, it forms a multi-point limit in the upper, lower and lateral directions, effectively preventing the original galvanized steel plate from shifting or vibrating after cutting, and improving the overall processing stability.

[0034] After all the slitting plates have been cut, the remaining galvanized steel scrap can be removed upwards as a whole. During this process, the pressure plate 35 contacts the edge of the scrap and bears a large tensile force. After overcoming the preload of the torsion spring, it rotates upwards around the axis, automatically making way for the discharge path without affecting the feeding. Once the scrap is completely removed, the pressure plate 35 automatically rotates back to its initial horizontal state under the restoring force of the torsion spring. It should be noted that the vibration generated during the cutting process is small and insufficient to trigger the rotation of the pressure plate 35. Only when the scrap is lifted as a whole, and the applied tensile force is large enough, is the pressure plate 35 triggered to make way, ensuring stable clamping and reliable operation during processing.

[0035] Please refer to Figure 1 and Figure 5 A grinding component 4 connected to the plasma arc cutting machine 2 is provided on the outside of the cutting head. While the cutting head is performing the next cutting operation, the grinding component 4, together with the target area bearing component 3, clamps and positions the ejected slit plate, automatically collects it, and performs reciprocating grinding on the upper surface, lower surface and side cutting burrs. The three work simultaneously, effectively utilizing the cutting gap time to complete the deburring process, avoiding additional machine downtime, and significantly improving the overall processing efficiency. At the same time, the slit plate is immediately clamped and ground after being ejected, reducing the impact damage caused by free placement, ensuring consistent edge quality, and realizing integrated and continuous operation of cutting and post-processing.

[0036] For details, please refer to Figure 10 Rotary rollers 41 are evenly arranged around the circumference of the slitting plate. The grinding assembly 4 includes a grinding layer on the outer side of the rotary rollers 41. The grinding layer can be made of silicon carbide abrasive material, which has good wear resistance. The rotary rollers 41 can rotate actively. When the slitting plate is pushed out, the rotary rollers 41 contact the side of the slitting plate through the grinding layer and perform rotational grinding, effectively removing burrs and micro protrusions generated by cutting. At the same time, the rotary rollers 41 arranged at multiple points around the circumference achieve circumferential positioning and uniform grinding of the slitting plate during rotation, while avoiding the plate displacement caused by unilateral force, ensuring the grinding process is stable and continuous, and improving the consistency of surface quality.

[0037] Please refer to Figures 10-12 To achieve simultaneous grinding of the upper and lower limits and the upper and lower edges of the slitting plate, limit discs 411 are respectively provided at the upper and lower ends of the rotating roller 41. The edge of the limit disc 411 closest to the slitting plate is inclined upward to facilitate the smooth entry of the slitting plate between the upper and lower limit discs 411. The sides of the upper and lower limit discs 411 that are close to each other are grinding surfaces, which can rotate synchronously with the rotating roller 41 to grind the upper and lower edges of the slitting plate. Although the lower end surface of the upper limit disc 411 is inclined, its horizontal section can still grind the edge of the upper end surface of the slitting plate. The limit disc 411 is provided with a sliding groove 412 that slides with the end of the rotating roller 41. A connecting spring 413 connected to the end of the rotating roller 41 is provided in the sliding groove 412 to provide a reset spring force.

[0038] When the circular pusher plate 32 pushes the slitting plate upward, the grinding assembly 4 moves downward synchronously with the Z-axis mechanism of the cutting head. As a result, the upper surface of the slitting plate first contacts the inclined surface of the lower limiting disc 411. The squeezing action causes the limiting disc 411 to overcome the elastic force of the connecting spring 413 and move backward radially along the rotating roller 41. As the slitting plate continues to rise, it gradually enters the space between the upper and lower limiting discs 411. When the slitting plate is fully in place, the lower limiting disc 411 is reset under the restoring force of the connecting spring 413 and supported at the bottom of the slitting plate. At this time, the slitting plate is clamped between the upper and lower limiting discs 411 and contacts the grinding layer on the rotating roller 41, providing a positioning basis for subsequent synchronous grinding. Furthermore, with the coordinated cooperation of the limiting disc 411 and the rotating roller 41, reliable positioning and posture fixation of the slitting plate in the circumferential and vertical directions can be achieved.

[0039] Furthermore, if the slitting plate is slightly misaligned during the upward pushing process, the circumferentially evenly distributed limiting disks 411 can gradually apply a corrective force through contact with the side of the slitting plate under the action of their inclined surfaces, thereby achieving automatic centering and positioning.

[0040] After the first plate is polished, the polishing assembly 4 needs to move down to polish the second plate. During this process, the second plate can press the first plate upward. When the first plate rises, it contacts the inclined surface of the upper limiting disc 411, forcing the limiting disc 411 to overcome the elastic force of the connecting spring 413 and move backward radially to make way. Then, the first plate passes over the upper limiting disc 411 and falls on it, completing the automatic transfer. Each time a new plate is pushed out, the previous one moves up and stacks in the upper area. Multiple cutting plates can be temporarily stored layer by layer above the upper limiting disc 411 to achieve orderly stacking and continuous clearance of polished parts, avoiding interference with the processing flow of the next workpiece. After all cutting is completed, the limiting disc 411 can be pulled outward to make way, so that the stacked cutting plates can be discharged as a whole or in sequence, completing centralized material discharge and improving the continuity of operation and material handling efficiency.

[0041] Please refer to Figures 7-9 To achieve the rotation of the rotating roller 41, a rotating rod 414 is installed on the upper end of the rotating roller 41. A chain plate 415 is set above the rotating rod 414. The rotating rod 414 and the chain plate 415 are rotatably connected. A rotating gear 416 is fitted on the upper end of the rotating rod 414 and located above the chain plate 415. A rack ring 417 that meshes with the rotating gear 416 is fitted on the outer side of the annular plate 429. The rack ring 417 is fixedly installed on the lower end of the top plate 418. A chain ring 419 that slides with the top plate 418 is fitted on the outer side of the chain plate 415 to ensure the smooth operation of the chain plate 415. The chain ring 419 and the chain plate 415 can rotate around the top plate 418. The rotating rod 414 and the rotating roller 41 move synchronously. At the same time, each rotating gear 416 moves with the rotating rod 414 and meshes with the fixed rack ring 417. During the meshing process, the relative motion generates rotation, which in turn drives the rotating rod 414 and the rotating roller 41 to rotate synchronously.

[0042] Please refer to Figures 5-8 In order to realize the reciprocating rotation of the chain plate 415, incomplete gears 420 are meshed on the outer edge of the left section and the inner edge of the right section of the chain plate 415 respectively. The two incomplete gears 420 have a circumferential phase difference of 180° to realize the alternating drive of the chain plate 415. A rotating shaft connected to the top plate 418 is installed on the upper end of the incomplete gear 420. A pulley 421 located above the top plate 418 is installed on the upper end of the rotating shaft. The left and right pulleys 421 are connected by a belt 422. The pulley 421 on the right side is connected to the output shaft of the drive motor 424. The drive motor 424 is installed on the upper end of the top plate 418.

[0043] During operation, the drive motor 424 drives the right pulley 421 to rotate, which in turn drives the left pulley 421 to rotate synchronously via the belt 422. The two pulleys 421 drive the two incomplete gears 420 to rotate in the same direction via the rotating shaft. Due to the 180° phase difference, the two incomplete gears 420 alternately mesh with the chain plate 415, which respectively pushes the chain plate 415 to move in the forward and reverse directions, thus achieving periodic reciprocating rotation.

[0044] Please refer to Figure 7 and Figure 10 To further improve the grinding effect of the slitting plate, a grinding roller 425 is also provided between adjacent rotating rollers 41. The grinding roller 425 is evenly distributed along the circumference of the slitting plate and can move up and down. During the lifting and lowering process, the grinding roller 425 works in conjunction with the rotating roller 41 to apply supplementary pressing and grinding to the side of the slitting plate, especially to strengthen the grinding of stubborn burrs on the cutting edge.

[0045] For details, please refer to Figures 7-9 A vertical rod 426 is installed on the upper end of the grinding roller 425 and is slidably connected to the chain plate 415. The vertical rod 426 can move synchronously with the chain plate 415 and drive the grinding roller 425 to rise and fall. An extension plate 427 is installed on the upper end of the vertical rod 426, and a fixed rod 428 is installed on the lower end of the extension plate 427. An annular plate 429 is fixedly fitted on the outer side of the rack ring 417. A mating groove 430 with continuous concave and convex contours is opened on the annular plate 429 to slide with the fixed rod 428. When the chain plate 415 moves, the extension plate 427 and the fixed rod 428 move accordingly. The fixed rod 428 moves up and down under the constraint of the concave and convex contours of the mating groove 430, and then drives the vertical rod 426 and the grinding roller 425 to move synchronously back and forth through the extension plate 427.

[0046] Please refer to Figure 6 and Figure 7 A pressing plate 431 is provided below the top plate 418. The pressing plate 431 can press the upper surface of the cutting plate during the grinding process to prevent it from deforming due to the lateral grinding force, and at the same time assist in edge shaping. A control rod 432 is installed on the upper end of the pressing plate 431, which slides up and down with the top plate 418. A compression spring 433 is sleeved on the outside of the control rod 432 between the top plate 418 and the pressing plate 431. Under the elastic force of the compression spring 433, the pressing plate 431 can automatically move down with the change of the height of the cutting plate to achieve stable fit and flexible pressing. It should be noted that the stiffness of the compression spring 433 is less than the stiffness of the support spring 34 in the bearing component 3, to ensure that the circular push plate 32 can overcome the pressing force smoothly when lifting the cutting plate, without affecting its normal upward movement.

[0047] Please refer to Figure 5 and Figure 6When the plasma arc cutting machine 2 needs to cut the galvanized steel sheet in the edge area, in order to ensure that the grinding component 4 can move synchronously with the plasma arc cutting machine 2 without interfering with the cutting operation, and can be transferred synchronously to the previous cutting area, a fixing ring 434 is installed on the outside of the plasma arc cutting machine 2. A guide groove is opened on the fixing ring 434. A guide post 435 is provided on the upper end of the top plate 418, which slides with the guide groove. The guide post 435 can drive the top plate 418 and the grinding component 4 to move along the fixing ring 434 to the designated position along the guide groove. The upper end of the guide post 435 is hinged to the telescopic end of the elastic telescopic plate 436. The other end of the elastic telescopic plate 436 is fixedly installed on the rotating disk. The rotating disk is rotatably installed on the plasma arc cutting machine 2 and is driven to rotate by an existing drive source (the drive source is not shown in the figure).

[0048] When the rotating disk rotates, the elastic telescopic plate 436 pushes the guide column 435 to move along the guide groove, which in turn drives the top plate 418 and the entire grinding assembly 4 to move to the designated position along the fixed ring 434. During this process, the elastic telescopic plate 436 adapts to the change of the rotating disk angle to ensure smooth and continuous movement. In addition, the grinding assembly 4 is linked with the Z-axis lifting mechanism of the cutting head through the connecting structure, and can move up and down synchronously with it.

[0049] Additionally, please refer to Figure 6 The guide post 435 is rotatably connected to the top plate 418. During the movement of the guide post 435 along the guide groove, the top plate 418 always maintains a horizontal lateral posture to avoid tilting or jamming due to motion interference. The lower end of the fixed section of the elastic telescopic plate 436 is equipped with a limit rod 437, and the upper end of the top plate 418 is provided with a limit groove 438 that slides with the limit rod 437. The limit rod 437 and the limit groove 438 work together to effectively constrain the lateral position of the top plate 418, preventing it from deflecting or shaking during movement, and ensuring that the grinding assembly 4 is always in the preset working posture.

[0050] It should be noted that the movement path of the grinding component 4 is independent of the working area of ​​the cutting head. Its position adjustment is carried out in the space outside the cutting process and does not occupy the cutting operation area. When the cutting head performs cutting along the predetermined trajectory, the grinding component 4 is located outside the current processing area. The two are spatially staggered and have no movement interference.

[0051] In actual use (during operation), the whole galvanized steel sheet to be cut is placed on the support component 3 on the workbench 1, and is stably supported by the support plate 31. The plasma arc cutting machine 2 moves to the preset position under the drive of the moving system and begins the cutting operation, cutting the galvanized steel sheet piece by piece into rectangular plates with semi-circular transitions at both ends. After each cut is completed, the circular push plate 32 below the area is lifted upward under the action of the support spring 34, pushing the cutting plate out of the original plate. At the same time, the pressure plate 35 presses the perimeter of the original galvanized steel sheet cutting area to prevent vibration and displacement. As the cutting head moves to the next cutting area, the grinding component 4 moves synchronously to the top of the pushed-out cutting plate. As the grinding component 4 moves down, the cutting plate enters the upper and lower limit discs 411 and rotates. Between the rotating rollers 41, the limiting disc 411 automatically yields and resets under the contact guide, realizing reliable limiting and positioning of the slitting plate in the circumferential and vertical directions. Subsequently, the rotating roller 41 rotates under the meshing drive of the rotating gear 416 and the rack ring 417, and moves back and forth with the chain plate 415, driving the grinding layer to continuously grind the sides and upper and lower edges of the slitting plate. At the same time, the grinding roller 425 can move back and forth up and down to strengthen the removal of stubborn burrs. After grinding is completed, the grinding component 4 moves with the cutting head to the next station. The previous slitting plate is lifted above the limiting disc 411 for temporary storage, and the subsequent slitting plates enter the grinding position in sequence to realize multi-station continuous operation. After all cutting and grinding are completed, all processed slitting plates can be taken out in one go.

[0052] Example 2, this example refers to Figure 13 and Figure 14 .

[0053] The difference between this embodiment and embodiment one is that the grinding assembly 4 includes an annular grinding belt 439, and an auxiliary roller 440 is provided between adjacent rotating rollers 41. The auxiliary roller 440 is rotatably mounted on the lower end of the chain link 419 and can move synchronously with the chain link 419 to tension and support the annular grinding belt 439. The number of rotating rollers 41 in this embodiment is reduced compared to embodiment one. The annular grinding belt 439 is wrapped around the outer periphery of each rotating roller 41 and the auxiliary roller 440 to form a continuous closed flexible grinding path. When the slitting plate is pushed out, its circumferential side and upper and lower edges enter the annular grinding belt 439. During the rotation of the rotating roller 41, the annular grinding belt 439 runs synchronously to achieve multi-directional enveloping grinding on the surface of the slitting plate.

[0054] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0055] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A galvanized steel sheet cutting system, characterized in that, include: Workbench (1), on which a plasma arc cutting machine (2) is provided for cutting large galvanized steel sheets into slitting plates of a predetermined shape; The support assembly (3) is evenly distributed on the workbench (1) and includes a support plate (31) and a plurality of circular push plates (32) disposed thereon. The circular push plates (32) are evenly arranged along the support plate (31) and can be raised and lowered. The support plate (31) is used to support the galvanized steel plate to be processed. The circular push plates (32) can push the separated cutting plates upward after cutting is completed. Pressure plate (35), the pressure plate (35) is set on the circular push plate (32). When the circular push plate (32) rises to push out the cutting plate, the pressure plate (35) simultaneously presses the peripheral plate surface of the original galvanized steel plate cutting area. The grinding component (4) is connected to the plasma arc cutting machine (2). While performing the next cutting operation, it can work with the target area support component (3) to clamp and position the already pushed cutting plate, automatically collect it, and reciprocate grinding the cutting burrs on its upper surface, lower surface and side surface. Rotating roller (41) is evenly distributed along the circumference of the slitting plate and can rotate actively.

2. The galvanized steel sheet cutting system according to claim 1, characterized in that, The polishing assembly (4) includes a polishing layer disposed on the outside of a rotating roller (41), which is capable of rotating and polishing the slitting plate.

3. The galvanized steel sheet cutting system according to claim 1, characterized in that, The polishing assembly (4) includes an annular polishing belt (439), and an auxiliary roller (440) is provided between adjacent rotating rollers (41). The annular polishing belt (439) is wrapped around the outer periphery of each rotating roller (41) and the auxiliary roller (440). The annular polishing belt (439) can perform flexible covering polishing on the side and upper and lower surfaces of the slitting plate.

4. A galvanized steel sheet cutting system according to claim 2 or 3, characterized in that, The upper and lower ends of the rotating roller (41) are respectively provided with a limiting disk (411). The limiting disk (411) is inclined upward on the side near the cutting plate. A groove (412) is provided on the limiting disk (411) to slide with the end of the rotating roller (41). A connecting spring (413) connected to the end of the rotating roller (41) is provided in the groove (412).

5. A galvanized steel sheet cutting system according to claim 4, characterized in that, A rotating rod (414) is installed on the upper end of the rotating roller (41), and a chain plate (415) is provided above the rotating rod (414). The rotating rod (414) and the chain plate (415) are rotatably connected. A rotating gear (416) located above the chain plate (415) is fitted on the upper end of the rotating rod (414). A rack ring (417) that meshes with the rotating gear (416) is fitted on the outer side of the annular plate (429). The rack ring (417) is fixedly installed at the lower end of the top plate (418). The chain plate (415) is fitted with a chain ring (419) that slides with the top plate (418). The outer edge of the left section of the chain plate (415) and the inner edge of the right section are respectively meshed with an incomplete gear (420). The upper end of the incomplete gear (420) is equipped with a rotating shaft that is rotatably connected to the top plate (418). The upper end of the rotating shaft is equipped with a pulley (421) located above the top plate (418). The left and right pulleys (421) are connected by a belt (422). The pulley (421) on the right side is connected to the output shaft of the drive motor (424).

6. A galvanized steel sheet cutting system according to claim 5, characterized in that, A grinding roller (425) is provided between adjacent rotating rollers (41). The grinding roller (425) is evenly distributed along the circumference of the slitting plate and can move up and down reciprocally. The upper end of the grinding roller (425) is equipped with a vertical rod (426) that slides vertically and vertically connected to the chain plate (415). An extension plate (427) is installed at the upper end of the vertical rod (426), and a fixing rod (428) is installed at the lower end of the extension plate (427). An annular plate (429) is fixedly fitted on the outer side of the rack ring (417). The annular plate (429) has a continuously undulating groove (430) that slides with the fixing rod (428).

7. A galvanized steel sheet cutting system according to claim 5 or 6, characterized in that, A pressing plate (431) is provided below the top plate (418). A control rod (432) that slides up and down with the top plate (418) is installed on the upper end of the pressing plate (431). A compression spring (433) located between the top plate (418) and the pressing plate (431) is sleeved on the outside of the control rod (432).

8. The galvanized steel sheet cutting system according to claim 1, characterized in that, The pressure plate (35) is rotatably connected to the circular push plate (32) via a torsion spring shaft. The support plate (31) is provided with a relief groove for avoiding the pressure plate (35). The lower end of the pressure plate (35) is equipped with a stop plate (36).

9. A galvanized steel sheet cutting system according to claim 8, characterized in that, The lower end of the circular push plate (32) is equipped with a support column (33) that slides up and down with the support plate (31), and a support spring (34) connected to the support plate (31) is sleeved on the outside of the support column (33).

10. A galvanized steel sheet cutting system according to claim 5, characterized in that, The plasma arc cutting machine (2) is equipped with a fixing ring (434) on the outside. A guide groove is provided on the fixing ring (434). A guide column (435) that slides with the guide groove is rotatably installed on the top plate (418). The upper end of the guide column (435) is hinged to the telescopic end of the elastic telescopic plate (436). The other end of the elastic telescopic plate (436) is fixedly installed on the rotating disk. The rotating disk can rotate actively.

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