Laser cutting machine for shield manufacturing

Abstract

The invention relates to the technical field of laser cutting, in particular to a laser cutting machine for shield manufacturing, which comprises a machine table, a conveying roller for feeding a metal plate, a pretreatment mechanism for cleaning the surface of the metal plate in the conveying process, and a cutting mechanism for performing laser cutting on the cleaned metal plate. According to the metal plate cutting device, through the arrangement of the pretreatment mechanism, oil stains on the surface of a metal plate can be doubly cleaned, the cleanliness of the surface of the metal plate is greatly improved, it is ensured that laser energy can evenly and accurately act on the metal plate, and therefore the cutting quality is improved, and the situation that the oil stains attached to the surface of the metal plate absorb the laser energy is avoided; the problems that cutting depth is uneven or cutting deviation is generated, laser cutting precision and effect are affected, oil smoke is generated, environment pollution is caused, and hidden danger is caused to health of workers are solved.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting, and in particular to a laser cutting machine for manufacturing shields. Background Art

[0002] Shields, as a handheld shield, are mainly used to cover the body and defend against attacks from enemy weapons such as swords, arrows and stones. In the manufacturing process of metal shields, metal plates need to be cut into the required shape and size, and then the metal sheets are formed into the shape of shields through stamping, forging or casting. When cutting metal plates, laser cutting machines are ideal for cutting metal shields due to their high precision, high speed and good cutting quality.

[0003] A laser cutting machine is a device that focuses the laser emitted from a 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 point or boiling point. At the same time, high-pressure gas coaxial with the beam melts or vaporizes the metal. As the relative position of the beam and the workpiece moves, a cut is eventually formed in the material.

[0004] A Chinese patent with application number CN202410749755.5 discloses a plate laser cutting device and cutting method, including a cutting bed, a laser, and a plurality of support members on the cutting bed, the support members including a first support member and a second support member, the first support member including a first rotating shaft, the first rotating shaft is provided with a support part and a brush cleaning member; the second support member includes a second rotating shaft, the second rotating shaft is slidably connected with a sleeve, the sleeve is provided with a support part and a brush cleaning member; a reciprocating drive member for driving the sleeve to reciprocate is provided inside the second rotating shaft, the first rotating shaft and the second rotating shaft are both rotatably connected to the cutting bed; the first rotating shaft and the second rotating shaft are driven to rotate synchronously by a rotating drive mechanism; a second support member is provided between two adjacent first support members. The above invention can effectively clean the slag attached to the support part, avoid affecting the flatness of the plate placement due to the slag attached to the support part, and improve the actual cutting accuracy.

[0005] After production, metal plates are coated with anti-corrosion oils for corrosion prevention. However, existing laser cutting equipment does not have the function of cleaning the oil stains on the surface of metal plates before cutting. The oil stains attached to the surface of metal plates will not only absorb laser energy, resulting in uneven cutting depth or cutting deviations, affecting the accuracy and effect of laser cutting, reducing the cutting quality, but also produce oil smoke, polluting the environment, and posing a health hazard to workers.

[0006] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Summary of the invention

[0007] The object of the present invention is to provide a laser cutting machine for shield manufacturing which can effectively solve the above technical problems.

[0008] In order to achieve the purpose of the present invention, the following technical scheme is adopted: A laser cutting machine for manufacturing shields, comprising: a machine platform, a conveying roller for feeding metal plates, a pretreatment mechanism for cleaning the surface of the metal plates during the conveying process, and a cutting mechanism for laser cutting the cleaned metal plates; The pretreatment mechanism includes: a mounting frame fixedly mounted on the machine platform, a cleaning member, an adjusting component for adjusting the spraying range of the cleaning member, a liquid storage tank, a conveying component for conveying the cleaning liquid in the liquid storage tank to the cleaning member, a power source for adjusting the height of the cleaning member, and a wiping component for wiping the metal plate after spraying; The adjustment assembly includes: an installation box, a power source 2 fixedly installed in the installation box, a linkage gear fixedly installed on the output shaft of the power source 2, a rack meshingly connected with the linkage gear, a limiting unit for limiting the position of the rack when it moves, a movable frame fixedly connected with the rack, and a limiting roller rotatably installed on the movable frame; The wiping assembly comprises: a sleeve fixedly mounted on the movable frame, a mounting strip movably mounted in the sleeve, a cleaning cylinder rotatably mounted on the mounting strip, and a reset spring driving the cleaning cylinder to reset.

[0009] Furthermore, the cleaning member includes: a fixed tube, a movable tube slidably installed in the fixed tube, a sealing ring fixedly installed on the movable tube, and spray holes opened on the fixed tube and the movable tube.

[0010] Furthermore, the conveying assembly includes: a sprayer fixedly installed in the installation box, and a material guide pipe connecting the sprayer and the movable pipe.

[0011] Furthermore, the limiting unit includes: a connecting plate fixedly connected to the rack, a slider fixedly installed on the connecting plate, and a fixing rod for guiding the slider; a slide groove is opened in the installation box, and the slider is slidably installed in the slide groove.

[0012] Furthermore, the cutting mechanism includes: a laser cutting head, a moving component for driving the laser cutting head to move, a protective component for protecting the laser cutting head, a filtering component for filtering smoke generated during the cutting process, and a supporting component for supporting the metal plate during cutting; The moving assembly includes: a transverse moving module, a longitudinal moving module, and a vertical moving module.

[0013] Furthermore, the protective assembly includes: a protective shell, a protective plate hingedly mounted on the protective shell, a movable plate movably mounted in the protective shell, a power source for driving the movable plate to move, and a guide unit for guiding the movable plate during movement; the laser cutting head is fixedly connected to the movable plate.

[0014] Furthermore, the guide unit includes: a guide tube fixedly installed in the protective shell, a guide rod movably installed in the guide tube, and an extrusion block fixedly installed at the end of the guide rod; the guide rod is fixedly connected to the movable plate.

[0015] Furthermore, the filter assembly includes: a filter box fixedly installed in the protective shell, a filter screen and an exhaust fan fixedly installed in the filter box, an annular tube fixedly installed on the movable plate, an air inlet pipe connected to the annular tube, an air guide pipe connecting the exhaust fan and the annular tube, and an air outlet pipe connected to the exhaust fan.

[0016] Furthermore, the supporting assembly includes: a cylinder and a long shaft rotatably mounted on the machine platform, a power source for driving the cylinder to rotate, a supporting block fixedly mounted on the cylinder, a steel brush fixedly mounted on the long shaft, a driving gear coaxially connected to the cylinder, and a driven gear coaxially connected to the long shaft; the driving gear and the driven gear are arranged to mesh with each other.

[0017] Furthermore, the cutting mechanism also includes: a piston slidably installed in the guide tube, a connecting tube 1 connecting the guide tube and the filter box, and a connecting tube 2 connected to the guide tube.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The laser cutting machine for shield manufacturing of the present invention can perform double cleaning on the oil stains on the surface of the metal plate through the setting of the pretreatment mechanism, thereby greatly improving the cleanliness of the surface of the metal plate, ensuring that the laser energy can act on the metal plate evenly and accurately, thereby improving the cutting quality, and avoiding the problem that the oil stains attached to the surface of the metal plate not only absorb the laser energy, resulting in uneven cutting depth, or cutting deviation, affecting the accuracy and effect of laser cutting, but also generating oil smoke, causing pollution to the environment, and causing hidden dangers to the health of the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0020] Figure 1 It is a three-dimensional schematic diagram of a laser cutting machine for manufacturing a shield according to the present invention; Figure 2It is a cross-sectional schematic diagram of a component mounting frame of a laser cutting machine for manufacturing a shield according to the present invention; Figure 3 It is a cross-sectional schematic diagram of a component installation box of a laser cutting machine for manufacturing a shield according to the present invention; Figure 4 It is a cross-sectional schematic diagram of a component fixing tube of a laser cutting machine for manufacturing a shield according to the present invention; Figure 5 The present invention is a laser cutting machine for manufacturing shields Figure 4 Enlarged view of point A in the middle; Figure 6 It is a schematic cross-sectional view of a component sleeve of a laser cutting machine for manufacturing a shield according to the present invention; Figure 7 It is a three-dimensional schematic diagram of a component support block of a laser cutting machine for manufacturing a shield according to the present invention; Figure 8 The present invention is a laser cutting machine for manufacturing shields Figure 7 Enlarged view of point B in the middle; Fig. 9 It is a cross-sectional schematic diagram of a vertical moving module of a component of a laser cutting machine for manufacturing a shield according to the present invention; Fig.10 A schematic cross-sectional view of a component protective shell of a laser cutting machine for manufacturing a shield according to the present invention; Fig.11 The present invention is a schematic cross-sectional view of a filter box component of a laser cutting machine for manufacturing shields.

[0021] In the figure: 1. Machine; 2. Conveying roller; 3. Pretreatment mechanism; 31. Mounting frame; 32. Cleaning part; 321. Fixed tube; 322. Movable tube; 323. Sealing ring; 324. Spraying hole; 33. Adjustment assembly; 331. Mounting box; 332. Power source 2; 333. Linking gear; 334. Rack; 335. Movable frame; 336. Limiting roller; 337. Limiting unit; 3371. Connecting plate; 3372. Sliding block; 3373. Fixed rod; 34. Liquid storage tank; 35. Conveying assembly; 351. Sprayer; 352. Material guide tube; 36. Wiping assembly; 361. Sleeve; 362. Mounting strip; 363. Reset spring; 364. Cleaning cylinder; 37. Power source 1; 4. Cutting mechanism; 41. Laser cutting head; 42. Moving assembly; 421. lateral moving module; 422. longitudinal moving module; 423. vertical moving module; 43. protective assembly; 431. protective shell; 432. protective plate; 433. movable plate; 434. power source three; 435. guide unit; 4351. guide pipe; 4352. guide rod; 4353. extrusion block; 44. filter assembly; 441. filter box; 442. filter screen; 443. exhaust fan; 444. annular pipe; 445. air inlet pipe; 446. air guide pipe; 447. air outlet pipe; 45. support assembly; 451. cylinder; 452. support block; 453. driving gear; 454. long shaft; 455. steel brush; 456. power source four; 457. driven gear; 46. piston; 47. connecting pipe one; 48. connecting pipe two. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the present invention, rather than all embodiments.

[0023] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0024] like Figures 1 to 11 As shown, the present invention is a laser cutting machine for shield manufacturing, comprising: a machine table 1, a conveying roller 2 for feeding metal plates, a pretreatment mechanism 3 for cleaning the surface of the metal plates during the conveying process, and a cutting mechanism 4 for laser cutting the cleaned metal plates.

[0025] The conveying roller 2 is installed on the machine table 1. The metal plate is placed on the conveying roller 2. By starting the conveying roller 2, the metal plate can be driven to move toward the cutting mechanism 4, thereby realizing automatic feeding and improving work efficiency.

[0026] The pretreatment mechanism 3 includes: a mounting frame 31 fixedly mounted on the machine 1, a cleaning member 32, an adjusting component 33 for adjusting the spraying range of the cleaning member 32, a liquid storage tank 34 fixedly mounted on the mounting frame 31, a conveying component 35 for conveying the cleaning liquid in the liquid storage tank 34 to the cleaning member 32, a power source 37 for adjusting the height of the cleaning member 32, the power source 37 is fixedly connected to the mounting frame 31, and a wiping component 36 for wiping the metal plate after spraying.

[0027] The adjustment component 33 includes: an installation box 331 fixedly installed on the movable end of the power source 1 37, the installation box 331 is located in the installation frame 31, a power source 2 332 fixedly installed in the installation box 331, a linkage gear 333 fixedly installed on the output shaft of the power source 2 332, and a rack 334 meshingly connected to the linkage gear 333, a limiting opening matching the rack 334 is opened on the installation box 331, the rack 334 is slidably installed in the limiting opening, a limiting unit 337 for limiting the rack 334 when it moves, a movable frame 335 fixedly connected to the rack 334, and a limiting roller 336 rotatably installed on the movable frame 335.

[0028] Start the conveying roller 2 to convey the metal plate. When one side of the metal plate is conveyed to the bottom of the fixed tube 321, the conveying roller 2 stops running. At this time, the spraying range of the cleaning member 32 is adjusted by starting the adjustment component 33. The cleaning member 32 includes: a fixed tube 321 fixedly connected to the installation box 331, a movable tube 322 slidably installed in the fixed tube 321, and a sealing ring 323 fixedly installed on the movable tube 322. The sealing ring 323 slides in the fixed tube 321 with the movable tube 322. The setting of the sealing ring 323 improves the sealing between the movable tube 322 and the fixed tube 321, thereby preventing the cleaning liquid from being discharged from the gap between the movable tube 322 and the fixed tube 321.

[0029] Specifically, starting power source 2 332 can drive the connecting gear 333 to rotate, and the connecting gear 333 drives the two racks 334 to move away from each other, and the two racks 334 drive the adjacent movable frames 335 to move away from each other, and the two movable frames 335 drive the adjacent movable tubes 322 to move away from each other, and simultaneously drive the limiting roller 336 to move, so that the movable tube 322 and the fixed tube 321 are extended to a certain length as a whole, and the overall length of the movable tube 322 and the fixed tube 321 is greater than the width of the metal plate. At this time, by starting power source 1 37, the cleaning member 32 can be moved to a set height, which is convenient for the subsequent spraying of cleaning liquid.

[0030] When the height adjustment of the cleaning member 32 is completed, the power source 2 332 is started again to drive the linkage gear 333 to rotate in the opposite direction, thereby making the two movable tubes 322 approach each other. When the limiting rollers 336 abut against the two sides of the metal plate, the power source 2 332 stops running. At this time, the overall length of the movable tube 322 and the fixed tube 321 matches the width of the metal plate, so that the present invention can adjust the spraying range according to the width of the metal plate, so that the spraying range of the cleaning liquid matches the width of the metal plate, avoiding the problem that the cleaning liquid spraying range is too large, resulting in waste of cleaning liquid, or the cleaning liquid spraying range is too small, resulting in part of the metal plate cannot be sprayed, thereby improving the spraying effect.

[0031] By setting the limiting roller 336, on the one hand, when the limiting roller 336 abuts against the two sides of the metal plate, the overall length of the movable tube 322 and the fixed tube 321 is matched with the width of the metal plate, thereby realizing the positioning of the spraying range of the metal plate; on the other hand, the horizontal direction of the metal plate can be limited to avoid the displacement of the metal plate when it moves, thereby improving the stability of the metal plate during spraying; in addition, the limiting roller 336 is rotatably installed on the movable frame 335, thereby facilitating the transportation of the metal plate.

[0032] It is to be added here that power source 1 37 is preferably a cylinder, and power source 2 332 is preferably a motor.

[0033] The wiping assembly 36 includes: a sleeve 361 fixedly mounted on the movable frame 335, a mounting strip 362 movably mounted in the sleeve 361, a cleaning cylinder 364 rotatably mounted on the mounting strip 362, and a reset spring 363 for driving the cleaning cylinder 364 to reset.

[0034] When the movable frame 335 moves, it can drive the two sleeves 361 to move relative to each other, and then drive the two cleaning cylinders 364 to move, thereby realizing the adjustment of the cleaning range of the two cleaning cylinders 364, so that the cleaning range of the two cleaning cylinders 364 matches the width of the metal plate, thereby achieving comprehensive cleaning of the metal plate and improving the cleaning effect.

[0035] When the power source 37 drives the cleaning member 32 to move to a set height, the two cleaning cylinders 364 are both in contact with the surface of the metal plate and drive the adjacent return springs 363 to be compressed. The elastic force of the return springs 363 can apply a downward thrust to the cleaning cylinder 364. On the one hand, the cleaning cylinder 364 is tightly attached to the surface of the metal plate, thereby avoiding separation of the cleaning cylinder 364 from the metal plate and further improving the cleaning effect. On the other hand, the cleaning cylinder 364 applies a downward thrust to the metal plate and cooperates with the conveying roller 2 to limit the metal plate in the vertical direction, thereby further avoiding displacement of the metal plate when it moves and improving the stability of the metal plate during spraying.

[0036] Sprayer 351 is a common spraying equipment on the market, which mainly includes a pump body and an atomizing nozzle.

[0037] When the heights of the cleaning member 32 and the cleaning cylinder 364 are adjusted, the conveying roller 2 is started again to convey the metal plate, and at the same time, the conveying component 35 is started to convey the atomized cleaning liquid to the cleaning member 32. The conveying component 35 includes: a sprayer 351 fixedly installed in the installation box 331, the sprayer 351 is connected to the liquid storage tank 34, and a guide pipe 352 connects the sprayer 351 and the movable pipe 322; that is, when the sprayer 351 is started, the cleaning liquid in the liquid storage tank 34 can be sucked out, and the atomized cleaning liquid is conveyed to the movable pipe 322 through the guide pipe 352, and the atomized cleaning liquid is sprayed out through the spray holes 324 on the movable pipe 322 and the fixed pipe 321, thereby realizing the spraying of the cleaning agent on the metal plate, and the oil stains on the surface of the metal plate can be dissolved by the cleaning agent, thereby improving the cleanliness of the surface of the metal plate.

[0038] At the same time, the cleaning cylinder 364 can wipe the surface of the metal plate sprayed with the cleaning liquid. On the one hand, it can remove the residual oil stains on the surface of the metal plate, further improving the cleanliness of the surface of the metal plate. On the other hand, the cleaning cylinder 364 can absorb the cleaning liquid on the surface of the metal plate, thereby keeping the surface of the metal plate dry and facilitating subsequent cutting.

[0039] In the present invention, by setting up the pretreatment mechanism 3, the oil stains on the surface of the metal plate can be double cleaned, which greatly improves the cleanliness of the metal plate surface and ensures that the laser energy can act on the metal plate evenly and accurately, thereby improving the cutting quality and avoiding the problem that the oil stains attached to the surface of the metal plate not only absorb the laser energy, resulting in uneven cutting depth, or cutting deviation, affecting the accuracy and effect of laser cutting, but also generating oil smoke, polluting the environment, and causing hidden dangers to the health of the workers.

[0040] It is added here that a dryer is also installed on the mounting frame 31, and the cleaned metal plate can be dried by the dryer, thereby ensuring that the surface of the metal plate is dry, which is convenient for subsequent cutting.

[0041] The limiting unit 337 includes: a connecting plate 3371 fixedly connected to the rack 334, a slider 3372 fixedly installed on the connecting plate 3371, and a fixed rod 3373 guiding the slider 3372; a sliding groove is opened in the installation box 331, and the slider 3372 is slidably installed in the sliding groove; the fixed rod 3373 passes through the slider 3372, and the fixed rod 3373 is fixedly installed in the sliding groove.

[0042] When the rack 334 moves, it can drive the connecting plate 3371 to move, and the connecting plate 3371 can drive the slider 3372 to slide in the slide groove. The setting of the fixed rod 3373 can prevent the slider 3372 from separating from the slide groove, thereby ensuring the stability of the slider 3372 when moving. The rack 334 can be limited by the mutual cooperation of the slider 3372, the connecting plate 3371 and the slide groove, thereby avoiding the rack 334 from deflecting when moving, and ensuring the stability of the rack 334 when moving.

[0043] The cutting mechanism 4 includes: a laser cutting head 41, a moving component 42 for driving the laser cutting head 41 to move, a protective component 43 for protecting the laser cutting head 41, a filtering component 44 for filtering smoke generated during the cutting process, and a supporting component 45 for supporting the metal plate during cutting; the supporting component 45 includes: a cylinder 451 and a long shaft 454 rotatably mounted on the machine 1, a power source 456 for driving the cylinder 451 to rotate, the power source 456 is fixedly mounted on the machine 1, a support block 452 fixedly mounted on the cylinder 451, a steel brush 455 fixedly mounted on the long shaft 454, a driving gear 453 coaxially connected to the cylinder 451, and a driven gear 457 coaxially connected to the long shaft 454; the driving gear 453 and the driven gear 457 are arranged to mesh with each other.

[0044] When the metal plate is cleaned and conveyed to the support assembly 45 by the conveying roller 2, the power source 456 is started to drive the cylinder 451 to rotate, and the cylinder 451 drives the support block 452 and the driving gear 453 to rotate. Since the support block 452 is evenly distributed on the surface of the cylinder 451 in a ring shape, when the metal plate moves to the top of the support plate, the rotation of the support block 452 can drive the metal plate to move to the specified cutting position. Therefore, in the present invention, the mutual cooperation between the cylinder 451 and the support block 452 can, on the one hand, support the metal plate during cutting; on the other hand, the metal plate can be conveyed.

[0045] During the process of cutting the metal plate, the laser will melt the metal material at the cutting position, thereby generating slag, which will adhere to the support block 452. Due to the presence of the slag, many irregular protrusions will be formed on the support block 452, causing the metal plate to be unable to be placed horizontally, causing a great impact on the flatness of the metal plate, and thus affecting the actual cutting accuracy.

[0046] When the driving gear 453 rotates, it can drive the driven gear 457 to rotate, and the driven gear 457 drives the long shaft 454 to rotate, and the steel brush 455 of the long shaft 454 rotates. Since the steel brush 455 is evenly distributed on the surface of the long shaft 454 in a ring shape and rotates in the opposite direction to the support block 452, the slag on the support block 452 can be effectively cleaned through the rotation of the steel brush 455, avoiding the slag adhering to the support block 452 and affecting the flatness of the metal plate, thereby improving the actual cutting accuracy.

[0047] It should be added here that a steel brush 455 is correspondingly provided under each cylinder 451 , thereby ensuring that the support block 452 on each cylinder 451 is fully cleaned, thereby ensuring the flatness of the metal plate placed on the support block 452 .

[0048] Power source four 456 is preferably an electric motor.

[0049] The protection assembly 43 includes: a protection shell 431 fixedly mounted on the mobile mechanism, a protection plate 432 hingedly mounted on the protection shell 431, a torsion spring installed at the hinge between the protection plate 432 and the protection shell 431, through the elastic force of the torsion spring, the protection plate 432 can be driven to reset, so that the protection plate 432 fits on the surface of the protection shell 431, thereby sealing the protection shell 431, a movable plate 433 movably mounted in the protection shell 431, a power source 434 for driving the movable plate 433 to move, and a guide unit 435 for guiding the movable plate 433 during movement; the laser cutting head 41 is fixedly connected to the movable plate 433.

[0050] When the laser cutting head 41 is not in use, it is inside the protective shell 431. At this time, the protective plate 432 is attached to the surface of the protective shell 431, which seals the protective shell 431. Through the cooperation between the protective shell 431 and the protective plate 432, on the one hand, the laser cutting head 41 can be protected to prevent the laser cutting head 41 from being damaged by collision and affecting normal use. On the other hand, the laser cutting head 41 can be dust-proof to prevent dust from adhering to the surface of the laser cutting head 41, blocking or scattering the laser beam, resulting in the laser beam being unable to accurately focus on the surface of the metal plate, thereby reducing the cutting accuracy.

[0051] The guide unit 435 includes: a guide tube 4351 fixedly installed in the protective shell 431 , a guide rod 4352 movably installed in the guide tube 4351 , and an extrusion block 4353 fixedly installed at the end of the guide rod 4352 ; the guide rod 4352 is fixedly connected to the movable plate 433 .

[0052] When the laser cutting head 41 needs to be used, the power source three 434 is started to drive the movable plate 433 to move downward, and the movable plate 433 drives the guide rod 4352 and the laser cutting head 41 to move downward. The guide rod 4352 can drive the extrusion block 4353 to squeeze the adjacent protective plate 432, so that the protective plate 432 rotates at its hinge with the protective shell 431, so that the protective plate 432 does not have a sealing effect on the protective shell 431. At the same time, the movable plate 433 drives the laser cutting head 41 to move to the outside of the protective shell 431, so as to prepare for subsequent cutting.

[0053] When the power source three 434 drives the movable plate 433 to move downward, it can drive the guide rod 4352 to slide in the guide tube 4351. Through the mutual cooperation between the guide rod 4352 and the guide tube 4351, the movable plate 433 can be limited when moving, thereby improving the stability of the movable plate 433 when moving.

[0054] When the protection plate 432 rotates, the torsion spring can be deformed. When the guide rod 4352 moves upward, the squeezing block 4353 does not have an squeezing effect on the protection plate 432. At this time, the elastic force of the torsion spring can drive the protection plate 432 to return to its original position.

[0055] When the laser cutting head 41 moves to the outside of the protective shell 431, the two protective plates 432 are rotated to the maximum angle at the hinge with the protective shell 431, that is, the two protective shells 431 are in a vertical state, which can shield the light beam of the laser cutting head 41 to a certain extent, thereby reducing light pollution to the staff.

[0056] It is to be added here that the power source three 434 is preferably an electric telescopic rod.

[0057] During the laser cutting process, smoke and dust are generated due to the high temperature melting or vaporization of the material. If there is residual oil on the surface of the metal plate, oil smoke will still be generated during laser cutting. The smoke and oil smoke not only pollute the working environment, but also affect the health of employees. The filter assembly 44 includes: a filter box 441 fixedly installed in the protective shell 431, a filter screen 442 and an exhaust fan 443 fixedly installed in the filter box 441, an annular pipe 444 fixedly installed on the movable plate 433, an air inlet pipe 445 connected to the annular pipe 444, an air guide pipe 446 connecting the exhaust fan 443 and the annular pipe 444, and an air outlet pipe 447 connected to the exhaust fan 443. Three air outlet pipes 447 are provided, corresponding to different cutting directions respectively.

[0058] When the laser cutting head 41 is cutting, the filtered gas in the filter box 441 is discharged by starting the exhaust fan 443, and the smoke and oil fume generated during cutting are sucked into the filter box 441, that is, the smoke and oil fume pass through the air inlet pipe 445 and the air guide pipe 446 in turn and enter the filter box 441. Through the setting of the filter net 442, the smoke and oil fume can be filtered, and the filtered gas is discharged through the exhaust fan 443, thereby realizing the collection of smoke and oil fume, and centralized filtering, avoiding the problem that the smoke and oil fume not only pollute the working environment, but also affect the health of employees.

[0059] The filtered gas is discharged through the exhaust fan 443 and sprayed onto the surface of the metal plate from different directions through three outlet pipes 447. Since the filtered gas still contains a very high temperature, it can preheat the area to be cut on the metal plate, thereby increasing the temperature of the metal plate, reducing the temperature gradient during cutting, making the metal plate heated more evenly, and helping to improve the cutting quality.

[0060] Since the three air outlet pipes 447 correspond to different cutting directions respectively, the laser cutting head 41 can preheat the area to be cut on the metal plate when cutting from different directions, rationally utilizing the heat resources in the cutting process and improving the utilization rate of heat.

[0061] It should be added here that the filter 442 is arranged in a V-shape, which on the one hand increases the filtering area and improves the filtering efficiency, and on the other hand makes it easier for the filtered dust to slide off the air inlet side of the filter 442, thereby reducing the dust adhering to the filter and causing the filter 442 to be blocked.

[0062] The cutting mechanism 4 also includes: a piston 46 slidably installed in the guide tube 4351, the piston 46 is fixedly installed at the end of the guide rod 4352, a connecting pipe 1 47 connecting the guide tube 4351 and the filter box 441, and a connecting pipe 2 48 connected to the guide tube 4351.

[0063] When the laser cutting head 41 needs to be used, the power source three 434 drives the movable plate 433 to move downward, and the movable plate 433 drives the laser cutting head 41 and the guide rod 4352 to move downward. When the guide rod 4352 moves downward, it can drive the piston 46 to move downward. During the downward movement of the piston 46, the air in the guide tube 4351 can be compressed, and the air is discharged through the connecting tube two 48 and sprayed on the surface of the laser cutting head 41, so that the laser cutting head 41 can be dusted before use, which can ensure the accurate transmission and focusing of the laser beam, improve the cutting accuracy and stability, and avoid the dust attached to the cutting head blocking or scattering the laser beam, resulting in the laser beam being unable to accurately focus on the surface of the metal plate, thereby reducing the cutting accuracy.

[0064] When the laser cutting head 41 is used, the power source 434 is started, and the laser cutting head 41 is driven to move into the protective shell 431. The movable plate 433 drives the guide rod 4352 to move upward. At this time, the guide rod 4352 drives the piston 46 to move upward. During the upward movement of the piston 46, the air in the guide tube 4351 can be compressed, and the air is sprayed onto the filter 442 through the connecting tube 47, and sprayed from the air outlet side of the filter 442 to the air inlet side, so that the dust attached to the air inlet side of the filter 442 can be blown off, avoiding the blockage of the filter 442 and preparing for subsequent filtering.

[0065] It should be added here that a sealing ring can be installed at the point where the guide rod 4352 penetrates the guide tube 4351, so as to prevent the air in the guide tube 4351 from being discharged from the gap between the guide rod 4352 and the guide tube 4351.

[0066] The moving assembly 42 includes a transverse moving module 421 , a longitudinal moving module 422 , and a vertical moving module 423 .

[0067] The laser cutting head 41 can be driven to move along the length direction of the metal plate through the transverse moving module 421, the laser cutting head 41 can be driven to move along the width direction of the metal plate through the longitudinal moving module 422, and the laser cutting head 41 can be driven to move along the thickness direction of the metal plate through the vertical moving module 423, thereby realizing mobile cutting of the laser cutting head 41.

[0068] It is to be added that the lateral moving module 421 , the longitudinal moving module 422 , and the vertical moving module 423 are all common linear moving modules on the market.

[0069] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0070] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A laser cutting machine for shield manufacturing, characterized in that: include: A machine table, a conveying roller for feeding the metal plate, a pretreatment mechanism for cleaning the surface of the metal plate during the conveying process, and a cutting mechanism for laser cutting the cleaned metal plate; The pretreatment mechanism includes: a mounting frame fixedly mounted on the machine platform, a cleaning member, an adjusting component for adjusting the spraying range of the cleaning member, a liquid storage tank, a conveying component for conveying the cleaning liquid in the liquid storage tank to the cleaning member, a power source for adjusting the height of the cleaning member, and a wiping component for wiping the metal plate after spraying; The adjustment assembly includes: an installation box, a power source 2 fixedly installed in the installation box, a linkage gear fixedly installed on the output shaft of the power source 2, a rack meshingly connected with the linkage gear, a limiting unit for limiting the position of the rack when it moves, a movable frame fixedly connected with the rack, and a limiting roller rotatably installed on the movable frame; The wiping assembly comprises: a sleeve fixedly mounted on the movable frame, a mounting strip movably mounted in the sleeve, a cleaning cylinder rotatably mounted on the mounting strip, and a reset spring driving the cleaning cylinder to reset.

2. A laser cutting machine for shield manufacturing as claimed in claim 1, characterized in that: The cleaning member comprises: a fixed tube, a movable tube slidably installed in the fixed tube, a sealing ring fixedly installed on the movable tube, and spray holes opened on the fixed tube and the movable tube.

3. A laser cutting machine for shield manufacturing as claimed in claim 2, characterized in that: The conveying assembly comprises: a sprayer fixedly installed in the installation box, and a material guide pipe connecting the sprayer and the movable pipe.

4. A laser cutting machine for shield manufacturing as claimed in claim 1, characterized in that: The limiting unit includes: a connecting plate fixedly connected to the rack, a sliding block fixedly installed on the connecting plate, and a fixing rod for guiding the sliding block; a sliding groove is provided in the installation box, and the sliding block is slidably installed in the sliding groove.

5. A laser cutting machine for shield manufacturing as claimed in claim 1, characterized in that: The cutting mechanism includes: a laser cutting head, a moving component for driving the laser cutting head to move, a protective component for protecting the laser cutting head, a filtering component for filtering smoke and dust generated during the cutting process, and a supporting component for supporting the metal plate during cutting; The moving assembly includes: a transverse moving module, a longitudinal moving module, and a vertical moving module.

6. A laser cutting machine for manufacturing a shield as claimed in claim 5, characterized in that: The protection assembly includes: a protection shell, a protection plate hingedly mounted on the protection shell, a movable plate movably mounted in the protection shell, a power source for driving the movable plate to move, and a guide unit for guiding the movable plate during movement; the laser cutting head is fixedly connected to the movable plate.

7. A laser cutting machine for manufacturing a shield as claimed in claim 6, characterized in that: The guide unit comprises: a guide tube fixedly installed in the protective shell, a guide rod movably installed in the guide tube, and an extrusion block fixedly installed at the end of the guide rod; the guide rod is fixedly connected to the movable plate.

8. A laser cutting machine for manufacturing a shield as claimed in claim 6, characterized in that: The filter assembly includes: a filter box fixedly installed in the protective shell, a filter screen and an exhaust fan fixedly installed in the filter box, an annular pipe fixedly installed on the movable plate, an air inlet pipe connected to the annular pipe, an air guide pipe connecting the exhaust fan and the annular pipe, and an air outlet pipe connected to the exhaust fan.

9. A laser cutting machine for manufacturing a shield as claimed in claim 5, characterized in that: The supporting assembly includes: a cylinder and a long shaft rotatably mounted on the machine platform, a power source for driving the cylinder to rotate, a supporting block fixedly mounted on the cylinder, a steel brush fixedly mounted on the long shaft, a driving gear coaxially connected to the cylinder, and a driven gear coaxially connected to the long shaft; the driving gear and the driven gear are arranged to mesh with each other.

10. A laser cutting machine for manufacturing a shield as claimed in claim 7, characterized in that: The cutting mechanism further comprises: a piston slidably mounted in the guide tube, a connecting tube 1 connecting the guide tube and the filter box, and a connecting tube 2 communicating with the guide tube.

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