A laser cutting device for galvanized sheet

Abstract

The application discloses a galvanized plate laser cutting device and relates to the technical field of laser cutting.The galvanized plate laser cutting device comprises a box body, a toothed plate is fixedly connected inside the box body, a cutting mechanism for cutting the galvanized plate is arranged on the surface of the box body, a pushing mechanism for automatically feeding the galvanized plate is arranged on the surface of the box body, a collecting mechanism for automatically collecting cutting pieces is arranged inside the box body, and a protection mechanism for protecting the collected cutting pieces is arranged inside the box body.Through the cooperation of the cutting mechanism and the pushing mechanism, the power sliding block slides to the transverse sliding rail direction, and then a pushing force in the transverse sliding rail direction is given to the inner wall of the pushing clamping groove through the pushing abutting block, so that the galvanized steel plate slides to the transverse sliding rail direction.The surface impurities of the galvanized steel plate are cleaned through the abutting surface shovel, and the impurities are collected into the inside of the material collecting box through the dust collection pipe.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, specifically to a laser cutting device for galvanized steel sheets. Background Technology

[0002] Galvanized steel sheet is a metal material with a layer of zinc coated on the surface of the steel sheet. This treatment not only enhances the corrosion resistance of the steel, but also extends its service life. Its main functions include preventing the steel from rusting, improving its durability in outdoor environments, and maintaining good mechanical properties and machinability. It is widely used in industries such as construction, transportation, and home appliances, and is both economical and safe.

[0003] During the laser cutting process, the galvanized sheet is prepared according to the required size and shape and placed on the cutting platform. After the laser is turned on, the laser beam is focused to a very small point through the optical system. The high energy at this point causes the zinc layer on the surface of the galvanized sheet and the steel sheet itself to melt and evaporate rapidly, thus breaking and achieving the purpose of cutting the galvanized sheet.

[0004] Currently, the equipment still has many inconveniences in use: when the laser cutting device cuts the next position of the galvanized sheet, the zinc layer or protective film on the surface of the galvanized sheet melts under high temperature and is prone to splashing. The splashed material will fall onto the surface of the unprocessed galvanized sheet and adhere to it. After the splashed zinc layer or protective film adheres to the unprocessed surface, it will form an irregular or raised surface. This will cause the laser beam to be unable to penetrate the material evenly during cutting, thus affecting the cutting accuracy and the flatness of the cutting edge. Summary of the Invention

[0005] Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a laser cutting device for galvanized steel sheets, which solves the problem mentioned in the background art of impurities on the surface of the galvanized steel sheet affecting the cutting accuracy during the feeding process.

[0007] Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solution: a galvanized sheet laser cutting device, wherein the box body has a toothed plate fixedly connected inside the box body, a cutting mechanism for cutting galvanized sheets is provided on the surface of the box body, a pushing mechanism for automatically feeding galvanized sheets is provided on the surface of the box body, a collecting mechanism for automatically collecting cut parts is provided inside the box body, and a protective mechanism for protecting the collected cut parts is provided inside the box body.

[0009] The cutting mechanism includes a side slide rail, which is fixedly connected to the upper surface of the box. A driving block is slidably connected to the surface of the side slide rail. A transverse slide rail is fixedly connected to the surface of the driving block. A laser component is slidably connected to the surface of the transverse slide rail. A galvanized steel plate is slidably connected to the surface of the toothed plate inside the box.

[0010] The propulsion mechanism includes a power gear rotatably connected to the surface of the housing. A first push rod is fixedly connected to the surface of the power gear. A power slider is slidably connected inside the housing. A second push rod is rotatably connected to the surface of the power slider. One end of the second push rod is rotatably connected to one end of the first push rod. A push block is rotatably connected to the surface of the power slider. A return lever and a limiting shaft are fixedly connected to the surface of the power slider. An adjusting slide is slidably connected to the surface of the housing. A fixed top frame is fixedly connected to the upper surface of the housing. A rotating slide shaft is slidably connected inside the fixed top frame. A descending groove is formed on the surface of the adjusting slide. The rotating slide shaft extends into the descending groove of the adjusting slide. A swing gear and a countershovel are sleeved on the surface of the rotating slide shaft. A receiving trough is formed inside the receiving trough. A receiving box is fixedly connected to the upper surface of the housing. A suction pipe is connected between the receiving box and the countershovel. A toothed block is fixedly connected to the surface of the fixed top frame. The swing gear meshes with the toothed block on the surface of the fixed top frame.

[0011] Preferably, the surface of the galvanized steel sheet is provided with a push groove, and the push block extends into the interior of the push groove.

[0012] Preferably, the spring-loaded paddle and the limiting shaft are both located inside the sliding path of the pushing block, the spring-loaded paddle and the limiting shaft are respectively located on both sides of the pushing block, and the surface of the power gear is provided with a toothed block that surrounds half a circle.

[0013] Preferably, the collecting mechanism includes a sliding outer frame, which is slidably connected to the inside of the box. A first spring is fixedly connected to the inside of the box and is fixedly connected to the sliding outer frame. A central abutment plate is fixedly connected to the surface of the sliding outer frame. A plurality of fixed circular frames are fixedly connected to the lower surface of the central abutment plate. A demolding abutment shaft is slidably connected to the inside of the fixed circular frames. A second spring is fixedly connected to the inside of the fixed circular frames and is fixedly connected to the demolding abutment shaft.

[0014] Preferably, a rubber pad is provided at one end of the demolding abutment shaft.

[0015] Preferably, the sliding distance of the central abutment plate is less than the distance between the fixed circular frame and the galvanized steel plate, and the surface of the sliding outer frame is provided with toothed blocks, which mesh with the sliding outer frame.

[0016] Preferably, the protective mechanism includes a protective plate, a collection groove is provided inside the housing, the protective plate is slidably connected to the inside of the collection groove, a fixed side plate is fixedly connected to the inner wall of the collection groove, an adjustment groove is provided on the surface of the fixed side plate, a first sliding shaft and a second sliding shaft are slidably connected inside the adjustment groove, a protective stop block is fixedly connected to the lower surface of the protective plate, the protective stop block is Z-shaped, the protective stop block is sleeved on the surface of the first sliding shaft and the second sliding shaft, a first support rod is rotatably connected to the surface of the fixed side plate, a second support rod is sleeved on the surface of the second sliding shaft, one end of the second support rod is rotatably connected to one end surface of the first support rod, a connecting shaft is rotatably connected inside the housing, the first support rod is rotatably connected to one end surface of the connecting shaft, an adjusting gear is rotatably connected inside the housing, the adjusting gear is fixedly connected to one end surface of the connecting shaft, and an adjusting gear is fixedly connected to the lower surface of the sliding outer frame, the adjusting gear meshing with the adjusting gear.

[0017] Preferably, the adjusting groove is composed of a straight sliding groove and an arc-shaped groove, and the length of the straight sliding groove is twice the radius of the arc-shaped groove.

[0018] Preferably, the distance by which the protective plate extends into the collection tank is less than the sliding distance of the protective block.

[0019] Beneficial effects

[0020] The laser cutting device for galvanized steel sheets provided by this invention has the following beneficial effects:

[0021] 1. Through the coordinated use of the cutting mechanism and the pushing mechanism, the power slider slides towards the transverse slide rail, and then pushes the inner wall of the pushing slot with a thrust towards the transverse slide rail by the pushing block, thereby pushing the galvanized steel sheet towards the transverse slide rail, realizing the advancement of the galvanized steel sheet on the surface of the toothed plate. As the galvanized steel sheet slides towards the transverse slide rail under the push of the pushing block, the impurities on the surface of the galvanized steel sheet are cleaned by the pushing shovel, and the impurities are collected into the inside of the receiving box through the dust suction pipe by the pushing shovel, thereby ensuring the flatness of the cutting range of the galvanized steel sheet and improving the cutting accuracy of the galvanized steel sheet.

[0022] 2. Through the coordinated use of the pushing mechanism and the collecting mechanism, when the demolding abutment contacts the cut part on the surface of the galvanized steel sheet, the demolding abutment will give the cut part a downward push and push the cut part into the interior of the protection mechanism for centralized collection. The cut part is collected by the collecting mechanism without waiting for manual intervention, which reduces the downtime in the production process, improves the overall production efficiency, and avoids the problem of the cut part staying on the surface of the box and thus blocking the subsequent pushing and cutting of the galvanized steel sheet.

[0023] 3. Through the coordinated use of the collection mechanism and the protection mechanism, the protective plate is folded over by the protective block. At this time, the protective plate is in contact with the toothed plate on the surface of the box, thus providing a stable space for collecting the cut parts from the galvanized steel plate surface. When the sliding outer frame rises, the protective plate will extend back into the inside of the collection groove to seal the collection groove, preventing impurities such as welding slag generated during the cutting process of the galvanized steel plate on the surface of the box from splashing into the inside of the collection groove and damaging the cut parts inside the collection groove, thereby improving the reliability of the product. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the rear structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0027] Figure 4 This is a schematic diagram of the overall structure of the collection mechanism of the present invention;

[0028] Figure 5 For the present invention Figure 4 A magnified view of part A in the image;

[0029] Figure 6 This is a schematic diagram of the internal structure of the fixed circular frame of the present invention;

[0030] Figure 7 This is a schematic diagram of the internal structure of the protection mechanism of the present invention;

[0031] Figure 8 For the present invention Figure 7 A magnified view of part B in the image.

[0032] The labels in the diagram represent: 1. Housing; 2. Cutting mechanism; 211. Side slide rail; 212. Driving block; 213. Transverse slide rail; 214. Laser component; 215. Galvanized steel plate; 3. Propulsion mechanism; 311. Power gear; 312. Push rod No. 1; 313. Push rod No. 2; 314. Power slider; 315. Push block; 316. Limiting shaft; 317. Spring-loaded paddle; 318. Push slot; 319. Abutment shovel; 3110. Receiving chute; 3111. Adjustable slide plate; 3112. Receiving box; 3113. Fixed top frame; 3114. Rotation. 3115. Sliding shaft; 3116. Swing gear; 3117. Dust suction pipe; 4. Collection mechanism; 411. Sliding outer frame; 412. Center plate; 413. Fixed round frame; 414. Spring No. 1; 415. Demolding abutment shaft; 416. Spring No. 2; 5. Protection mechanism; 511. Protection plate; 512. Fixed side plate; 513. Collection groove; 514. Protective block; 515. Sliding shaft No. 1; 516. Sliding shaft No. 2; 517. Support rod No. 1; 518. Support rod No. 2; 519. Adjustment groove; 5110. Connecting shaft; 5111. Adjusting gear; 5112. Adjusting rack. Detailed Implementation

[0033] 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.

[0034] refer to Figures 1 to 8 A preferred embodiment of the present invention, a galvanized sheet laser cutting device, will be described in detail below. The galvanized sheet laser cutting device includes a housing 1, a toothed plate fixedly connected inside the housing 1, a cutting mechanism 2 for cutting the galvanized sheet provided on the surface of the housing 1, a pushing mechanism 3 for automatically feeding the galvanized sheet provided on the surface of the housing 1, a collecting mechanism 4 for automatically collecting the cut parts provided inside the housing 1, and a protection mechanism 5 for protecting the collected cut parts inside the housing 1.

[0035] The cutting mechanism 2 includes a side slide rail 211, which is fixedly connected to the upper surface of the housing 1. A driving block 212 is slidably connected to the surface of the side slide rail 211. A transverse slide rail 213 is fixedly connected to the surface of the driving block 212. A laser component 214 is slidably connected to the surface of the transverse slide rail 213. A galvanized steel plate 215 is slidably connected to the surface of the toothed plate inside the housing 1.

[0036] like Figure 1In the middle, the propulsion mechanism 3 includes a power gear 311, which is rotatably connected to the surface of the housing 1. A first push rod 312 is fixedly connected to the surface of the power gear 311. A power slider 314 is slidably connected inside the housing 1. A second push rod 313 is rotatably connected to the surface of the power slider 314. One end of the second push rod 313 is rotatably connected to one end of the first push rod 312. When the galvanized steel plate 215 completes the cutting task at one position through the cutting mechanism 2, the motor drives the power gear 311 to rotate, and the first push rod 312 on the surface of the power gear 311 applies a pulling force to the second push rod 313, thereby pulling the power slider 314 to slide. Figure 1 and Figure 2 In this configuration, a push block 315 is rotatably connected to the surface of the power slider 314. A spring-loaded paddle 317 and a limiting shaft 316 are fixedly connected to the surface of the power slider 314. A push groove 318 is formed on the surface of the galvanized steel plate 215, and the push block 315 extends into the push groove 318. The spring-loaded paddle 317 and the limiting shaft 316 are both located within the sliding path of the push block 315, and are located on both sides of the push block 315. A toothed block is provided on the surface of the power gear 311, encircling half a circle. Since the push block 315 on the surface of the power slider 314 is located inside the push groove 318 on the surface of the galvanized steel plate 215, the power slider 314 slides in the direction of the transverse slide rail. The limiting shaft 316 provides a restriction to the push block 315. The push block 315 cannot rotate counterclockwise, so the power slider 314 slides towards the transverse slide rail, thereby pushing the inner wall of the push slot 318 towards the transverse slide rail through the push block 315. This pushes the galvanized steel plate 215 towards the transverse slide rail, thus advancing the galvanized steel plate 215 on the toothed plate surface. As the power gear 311 continues to rotate, the power gear 311, through the power gear 311 and the first push rod 312, pulls the power slider 314 to slide in the opposite direction. The push block 315 contacts the inclined surface of the push slot 318, and the push block 315 rotates clockwise. At this time, the return plate 317 is compressed and retracted under the push of the push block 315 until the power slider 314 slides to the initial position. The push block 315 then extends back into the interior of the push slot 318. Figure 3In the middle, an adjusting slide plate 3111 is slidably connected to the surface of the box body 1, and a fixed top frame 3113 is fixedly connected to the upper surface of the box body 1. A rotating slide shaft 3114 is slidably connected inside the fixed top frame 3113. A descending groove is opened on the surface of the adjusting slide plate 3111, and the rotating slide shaft 3114 extends into the descending groove of the adjusting slide plate 3111. A swing gear 3115 and a scoop 319 are sleeved on the surface of the rotating slide shaft 3114. A receiving trough 3110 is opened inside the receiving trough 3110. A receiving box 3112 is fixedly connected to the upper surface of the box body 1. A suction pipe 3116 is connected between the receiving box 3112 and the scoop 319. A toothed block is fixedly connected to the surface of the fixed top frame 3113. The swing gear 3115 meshes with the toothed block on the surface of the fixed top frame 3113. When the adjusting slide plate 3111 slides towards the driving block 212, the power slider 314 pushes... The sliding adjustment slide plate 3111 slides, and the downward groove on the surface of the adjustment slide plate 3111 provides a downward thrust to the rotating slide shaft 3114, which in turn drives the abutment shovel 319 to slide downward. As the abutment shovel 319 continues to slide down, the swing gear 3115 contacts the toothed block on the surface of the fixed top frame 3113. Driven by the swing gear 3115, the abutment shovel 319 rotates clockwise and becomes inclined. When the power slider 314 slides to the bottom of the downward groove on the surface of the adjustment slide plate 3111, the abutment shovel 319 contacts the surface of the galvanized steel plate 215. As the galvanized steel plate 215 slides towards the transverse slide rail 213 under the push of the push block 315, the abutment shovel 319 cleans the impurities on the surface of the galvanized steel plate 215. The abutment shovel 319 collects the impurities into the inside of the receiving box 3112 through the dust suction pipe 3116, thereby ensuring the flatness of the cutting range of the galvanized steel plate 215 and improving the cutting accuracy of the galvanized steel plate 215.

[0037] like Figure 4 In the middle, the collecting mechanism 4 includes a sliding outer frame 411, which is slidably connected to the inside of the box 1. The surface of the sliding outer frame 411 is provided with toothed blocks that mesh with the sliding outer frame 411. A first spring 414 is fixedly connected inside the box 1 and is fixedly connected to the sliding outer frame 411. A central abutment plate 412 is fixedly connected to the surface of the sliding outer frame 411, and multiple fixed circular frames 413 are fixedly connected to the lower surface of the central abutment plate 412. When galvanized... During the automatic advancement of the steel plate 215 under the action of the pushing mechanism 3, the cut parts of the galvanized steel plate 215 that have already been cut remain attached to the surface of the galvanized steel plate 215 until the cut parts are pushed by the pushing mechanism 3 to below the central abutment plate 412. When the power slider 314 slides away from the transverse slide rail to return to its original position, the power gear 311 rotates to the other side, and the power gear 311 pushes the sliding outer frame 411 down, thereby causing the fixed circular frame 413 on the lower surface of the central abutment plate 412 to slide down. Figure 6 In the process, a demolding abutment 415 is slidably connected inside the fixed circular frame 413, and a second spring 416 is fixedly connected inside the fixed circular frame 413. The second spring 416 is fixedly connected to the demolding abutment 415. At this time, the demolding abutment 415 inside the fixed circular frame 413 is in contact with the surface of the galvanized steel plate 215. When the demolding abutment 415 contacts the uncut part of the galvanized steel plate 215, the demolding abutment 415 will retract into the interior of the fixed circular frame 413 under the restriction of the galvanized steel plate 215. When the demolding abutment 415 contacts the cut part on the surface of the galvanized steel plate 215, the demolding abutment 415 will give the cut part a downward pushing force and push the cut part into the interior of the protection mechanism 5 for centralized collection. The cut part is collected by the collection mechanism 4 without waiting for manual intervention, which reduces the downtime in the production process, improves the overall production efficiency, and avoids the problem of the cut part staying on the surface of the box 1 and thus blocking the subsequent pushing and cutting of the galvanized steel plate 215.

[0038] like Figure 7 In the middle, the protective mechanism 5 includes a protective plate 511, and a collection groove 513 is provided inside the box 1. The protective plate 511 is slidably connected to the inside of the collection groove 513, and a fixed side plate 512 is fixedly connected to the inner wall of the collection groove 513. Figure 7 and Figure 8In the middle, a first support rod 517 is rotatably connected to the surface of the fixed side plate 512, and a second support rod 518 is sleeved on the surface of the second sliding shaft 516. One end of the second support rod 518 is rotatably connected to one end surface of the first support rod 517. A connecting shaft 5110 is rotatably connected inside the housing 1, and one end surface of the connecting shaft 5110 is rotatably connected to the first support rod 517. An adjusting gear 5111 is rotatably connected inside the housing 1, and the adjusting gear 5111 is fixedly connected to one end surface of the connecting shaft 5110. An adjusting gear 5112 is fixedly connected to the lower surface of the sliding outer frame 411. 12 meshes with the adjusting gear 5111. As the sliding outer frame 411 descends under the push of the power gear 311, the sliding outer frame 411 drives the adjusting gear 5112 to slide downwards, thereby driving the adjusting gear 5111 to rotate. This, in turn, drives the first support rod 517 to rotate on the surface of the fixed side plate 512 via the connecting shaft 5110, thus providing an upward thrust to the first support rod 517. This, in turn, provides an upward thrust to the protective block 514 via the second sliding shaft 516. The surface of the fixed side plate 512 is provided with an adjusting groove 519, which consists of a straight sliding groove and an arc-shaped groove. The length of the straight slide groove of the adjusting groove 519 is twice the radius of the arc groove of the adjusting groove 519. A first sliding shaft 515 and a second sliding shaft 516 are slidably connected inside the adjusting groove 519. A protective stop block 514 is fixedly connected to the lower surface of the protective plate 511. The protective stop block 514 is Z-shaped and fits onto the surfaces of the first sliding shaft 515 and the second sliding shaft 516. When the first sliding shaft 515 slides to the top of the straight slide groove of the adjusting groove 519, the protective plate 511 disengages from the inside of the collecting groove 513. As the second support rod 518 continues to slide upwards, the second sliding shaft 516 extends into the adjusting groove 519. In the arc groove section, the protective plate 511 is folded over by the protective block 514. At this time, the protective plate 511 is in contact with the toothed plate part on the surface of the box 1, thus providing a stable space for collecting the cut parts on the surface of the galvanized steel plate 215. When the sliding outer frame 411 rises, the protective plate 511 will extend back into the interior of the collection groove 513 to seal the collection groove 513. This prevents impurities such as welding slag generated by the galvanized steel plate 215 on the surface of the toothed plate of the box 1 from splashing into the interior of the collection groove 513 and damaging the cut parts inside the collection groove 513, thereby improving the reliability of the product.

[0039] The following is the complete working process and working principle of the above embodiment: After the galvanized steel plate 215 completes the cutting task at one position through the cutting mechanism 2, the motor drives the power gear 311 to rotate, and the first push rod 312 on the surface of the power gear 311 applies a pulling force to the second push rod 313, thereby pulling the power slider 314 to slide. Since the pushing block 315 on the surface of the power slider 314 is located inside the pushing groove 318 on the surface of the galvanized steel plate 215 at this time, the power slider 314 slides in the direction of the transverse slide rail. Since the limiting shaft 316 provides a restriction to the pushing block 315, the pushing block 315 cannot rotate counterclockwise. The power slider 314 slides in the direction of the transverse slide rail, and the pushing block 315 applies a transverse force to the inner wall of the pushing groove 318. The thrust towards the slide rail pushes the galvanized steel plate 215 to slide towards the transverse slide rail, thus advancing the galvanized steel plate 215 on the toothed plate surface. As the power gear 311 continues to rotate, the power gear 311, through the power gear 311 and the first push rod 312, pulls the power slider 314 to slide in the opposite direction, pushing the abutment 315 to contact the inclined surface of the push slot 318, and pushing the abutment 315 to rotate clockwise. At this time, the return plate 317 is compressed and retracted under the push of the push abutment 315 until the power slider 314 slides to the initial position, and the push abutment 315 extends back into the interior of the push slot 318. And when the adjusting slide plate 3111 slides towards the driving block 212, the power slider 314 pushes the adjusting slide plate 3111 to slide. By adjusting the descending groove on the surface of the sliding plate 3111, a downward thrust is applied to the rotating sliding shaft 3114, which in turn drives the abutment shovel 319 to slide downward. As the abutment shovel 319 continues to slide downward, the swing gear 3115 contacts the toothed block on the surface of the fixed top frame 3113. Driven by the swing gear 3115, the abutment shovel 319 rotates clockwise and becomes inclined. When the power slider 314 slides to the bottom of the descending groove on the surface of the adjusting sliding plate 3111, the abutment shovel 319 contacts the surface of the galvanized steel plate 215. As the galvanized steel plate 215 slides towards the transverse slide rail 213 under the push of the pushing block 315, impurities on the surface of the galvanized steel plate 215 are cleaned by the abutment shovel 319, and the impurities are collected through the suction pipe 3116 by the abutment shovel 319. The inside of the receiving box 3112 ensures the flatness of the cutting range of the galvanized steel sheet 215, improving the cutting accuracy of the galvanized steel sheet 215. During the automatic advancement of the galvanized steel sheet 215 under the action of the pushing mechanism 3, the cut parts of the galvanized steel sheet 215 that have already been cut remain attached to the surface of the galvanized steel sheet 215 until the cut parts are pushed by the pushing mechanism 3 to below the central abutment plate 412. When the power slider 314 slides away from the transverse slide rail to return to its original position, the power gear 311 rotates again, pushing the sliding outer frame 411 downwards, thereby causing the fixed circular frame 413 on the lower surface of the central abutment plate 412 to slide downwards. At this time, the demolding abutment shaft 415 inside the fixed circular frame 413 contacts the surface of the galvanized steel sheet 215.When the demolding abutment 415 contacts the uncut area of ​​the galvanized steel plate 215, it retracts into the fixed circular frame 413 under the constraint of the galvanized steel plate 215. When the demolding abutment 415 contacts the cut part on the surface of the galvanized steel plate 215, it applies a downward thrust to the cut part, pushing it into the protective mechanism 5 for collection. The collection mechanism 4 collects the cut part without manual intervention, reducing downtime and improving overall production efficiency. It also prevents the cut part from remaining on the surface of the housing 1, thus blocking the subsequent cutting of the galvanized steel plate 215. Through the combined use of the collection mechanism 4 and the protective mechanism 5, as the sliding outer frame 411 descends under the push of the power gear 311, it drives the adjusting gear 5112 to slide downwards, thereby rotating the adjusting gear 5111. This, in turn, drives the first support rod 517 to the fixed side plate 51 via the connecting shaft 5110. The surface of the second support rod 518 rotates, thus providing an upward thrust to the first support rod 517, which in turn provides an upward thrust to the protective block 514 via the second sliding shaft 516, until the first sliding shaft 515 slides to the top of the straight sliding groove of the adjusting groove 519. At this point, the protective plate 511 disengages from the interior of the collecting groove 513. As the second support rod 518 continues to slide upward, the second sliding shaft 516 extends to the arc groove portion of the adjusting groove 519, and the protective block 514 folds the protective plate 511. The protective plate 511 is partially fitted against the toothed plate surface of the housing 1, thus providing a stable space for collecting the cut parts from the galvanized steel sheet 215. Furthermore, when the sliding outer frame 411 rises, the protective plate 511 extends back into the collection groove 513, sealing it and preventing weld slag and other impurities generated during the cutting process from splashing into the collection groove 513 and damaging the cut parts inside. This improves product reliability.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser cutting device for galvanized sheet, comprising a housing (1), wherein a toothed plate is fixedly connected inside the housing (1), characterized in that: The surface of the box (1) is provided with a cutting mechanism (2) for cutting galvanized sheet, the surface of the box (1) is provided with a pushing mechanism (3) for automatically feeding galvanized sheet, the inside of the box (1) is provided with a collection mechanism (4) for automatically collecting cut parts, and the inside of the box (1) is provided with a protection mechanism (5) for protecting the collected cut parts. The cutting mechanism (2) includes a side slide rail (211), which is fixedly connected to the upper surface of the housing (1). A driving block (212) is slidably connected to the surface of the side slide rail (211), and a transverse slide rail (213) is fixedly connected to the surface of the driving block (212). A laser component (214) is slidably connected to the surface of the transverse slide rail (213), and a galvanized steel plate (215) is slidably connected to the surface of the toothed plate inside the housing (1). The propulsion mechanism (3) includes a power gear (311), which is rotatably connected to the surface of the housing (1). A first push rod (312) is fixedly connected to the surface of the power gear (311). A power slider (314) is slidably connected inside the housing (1). A second push rod (313) is rotatably connected to the surface of the power slider (314). One end of the second push rod (313) is rotatably connected to one end of the first push rod (312). A push block (315) is rotatably connected to the surface of the power slider (314). A spring-loaded paddle (317) and a limiting shaft (316) are fixedly connected to the surface of the power slider (314). An adjusting slide plate (3111) is slidably connected to the surface of the housing (1). A fixed... A fixed top frame (3113) is provided with a rotating slide shaft (3114) slidably connected inside the fixed top frame (3113). A descending groove is provided on the surface of the adjusting slide plate (3111). The rotating slide shaft (3114) extends into the descending groove of the adjusting slide plate (3111). A swing gear (3115) and a shovel (319) are sleeved on the surface of the rotating slide shaft (3114). A receiving groove (3110) is provided inside the shovel (319). A receiving box (3112) is fixedly connected to the upper surface of the box body (1). A dust suction pipe (3116) is connected between the receiving box (3112) and the shovel (319). A toothed block is fixedly connected to the surface of the fixed top frame (3113). The swing gear (3115) meshes with the toothed block on the surface of the fixed top frame (3113).

2. The laser cutting device for galvanized sheet according to claim 1, characterized in that: The galvanized steel sheet (215) has a push groove (318) on its surface, and the push block (315) extends into the push groove (318).

3. The laser cutting device for galvanized sheet according to claim 2, characterized in that: The spring-loaded paddle (317) and the limiting shaft (316) are both located inside the sliding path of the push block (315). The spring-loaded paddle (317) and the limiting shaft (316) are located on both sides of the push block (315). The surface of the power gear (311) is provided with a toothed block that surrounds half a circle.

4. The laser cutting device for galvanized sheet according to claim 2, characterized in that: The collecting mechanism (4) includes a sliding outer frame (411), which is slidably connected to the inside of the box (1). A first spring (414) is fixedly connected inside the box (1). The first spring (414) is fixedly connected to the sliding outer frame (411). A central abutment plate (412) is fixedly connected to the surface of the sliding outer frame (411). A plurality of fixed circular frames (413) are fixedly connected to the lower surface of the central abutment plate (412). A demolding abutment shaft (415) is slidably connected inside the fixed circular frame (413). A second spring (416) is fixedly connected inside the fixed circular frame (413). The second spring (416) is fixedly connected to the demolding abutment shaft (415).

5. The laser cutting device for galvanized sheet according to claim 4, characterized in that: A rubber pad is provided at one end of the demolding abutment shaft (415).

6. The laser cutting device for galvanized sheet according to claim 4, characterized in that: The sliding distance of the central abutment plate (412) is less than the distance between the fixed circular frame (413) and the galvanized steel plate (215). The surface of the sliding outer frame (411) is provided with toothed blocks, and the toothed blocks on the surface of the sliding outer frame (411) mesh with the sliding outer frame (411).

7. The laser cutting device for galvanized sheet according to claim 4, characterized in that: The protective mechanism (5) includes a protective plate (511). A collection groove (513) is provided inside the housing (1). The protective plate (511) is slidably connected to the inside of the collection groove (513). A fixed side plate (512) is fixedly connected to the inner wall of the collection groove (513). An adjustment groove (519) is provided on the surface of the fixed side plate (512). A first sliding shaft (515) and a second sliding shaft (516) are slidably connected inside the adjustment groove (519). A protective stop (514) is fixedly connected to the lower surface of the protective plate (511). The protective stop (514) is Z-shaped and fits onto the surfaces of the first sliding shaft (515) and the second sliding shaft (516). The fixed side plate (512)... The surface of the first support rod (517) is rotatably connected, and the surface of the second sliding shaft (516) is fitted with the second support rod (518). One end of the second support rod (518) is rotatably connected to one end surface of the first support rod (517). The inside of the box (1) is rotatably connected to the connecting shaft (5110). The first support rod (517) is rotatably connected to one end surface of the connecting shaft (5110). The inside of the box (1) is rotatably connected to the adjusting gear (5111). The adjusting gear (5111) is fixedly connected to one end surface of the connecting shaft (5110). The lower surface of the sliding outer frame (411) is fixedly connected to the adjusting rack (5112). The adjusting rack (5112) meshes with the adjusting gear (5111).

8. The laser cutting device for galvanized sheet according to claim 7, characterized in that: The adjustment groove (519) is composed of a straight sliding groove and an arc-shaped groove. The length of the straight sliding groove of the adjustment groove (519) is twice the radius of the arc-shaped groove of the adjustment groove (519).

9. A laser cutting device for galvanized sheet according to claim 7, characterized in that: The distance by which the protective plate (511) extends into the collection groove (513) is less than the sliding distance of the protective block (514).

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