A laser cutting device for special-shaped advertisement production
Patent Information
- Application Number
- CN202610926170.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-25
- Publication Date
- 2026-09-15
AI Technical Summary
老式装置在对广告牌进行激光切割时，广告牌通常直接平铺放置于加工台表面，激光光束在穿透广告牌后往往会直接作用于加工台台面，长期使用下容易导致台面被激光灼伤而出现凹坑或不平整，这不仅造成设备本身的不可逆损伤，还会因台面不平整导致后续广告牌放置时出现翘曲，进而严重影响裁切精度和切割断面质量；同时，老式装置的固定架上通常设有用于阻挡激光头过度移动的挡板结构，这些挡板在切割过程中始终处于固定位置，当激光头需要移动至广告牌边缘进行裁切时，挡板会直接阻挡激光头的行进路径，导致激光头无法与广告牌待切割部位充分接触，操作人员往往需要手动调整挡板位置或暂停切割进行干预，既打断了切割流程的连续性，也降低了整体加工效率；此外，老式装置缺乏对后续广告牌的有效隔离机构，当一块广告牌正在切割时，输送辊道上的后续广告牌仍会持续向前传送，极易与正在加工的广告牌发生碰撞或挤压，不仅会破坏当前广告牌的切割定位精度，还可能导致广告牌之间相互刮擦损伤表面，严重时甚至会造成激光头与广告牌发生非预期碰撞而损坏设备
1、该发明中，通过抬板将广告牌向上抬起，使广告牌与加工台表面脱离接触，这样在激光切割时，光束不会直接穿透广告牌击伤或烧坏加工台表面，既保护了设备，也避免了因台面不平整导致的切割质量下降，挡板在联动作用下自动收起并贴合固定架表面，解除了对激光头移动路径的阻挡，这使得激光头能够顺利移动到位，与广告牌充分接触并进行精确裁切，保证了切割动作的顺畅执行，挡板收起后，其本身或相关结构会对后续输送过来的广告牌形成物理阻挡，这能有效防止下一个广告牌在切割过程中误进入工作区域，避免了前后广告牌碰撞或影响当前激光切割进程，提升了作业的连续性和安全性。
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Figure CN122746631A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of laser cutting technology, specifically to a laser cutting device for producing irregularly shaped advertisements. Background Technology
[0002] As modern manufacturing evolves towards higher precision and intelligence, laser processing technology, due to its advantages such as non-contact operation, small heat-affected zone, and high flexibility, has been widely applied in the pre-processing stages of advertising production, sheet metal cutting, and intelligent welding systems. On mass production lines for irregularly shaped billboards, laser cutting devices are the core equipment for achieving complex contour forming.
[0003] While existing older laser cutting equipment can perform basic irregular-shaped cutting of billboards, meeting the basic processing needs of the advertising industry, it suffers from several drawbacks. When laser cutting billboards, the older equipment typically places the billboard flat on the processing table. The laser beam, after penetrating the billboard, often directly strikes the table surface, easily causing laser burns, pits, or unevenness over time. This not only causes irreversible damage to the equipment itself but also leads to warping of the billboard when placed later due to unevenness, severely affecting cutting accuracy and the quality of the cut surface. Furthermore, the older equipment's mounting bracket usually has baffles to prevent excessive laser head movement. These baffles remain fixed during cutting; when the laser head needs to move to the edge of the billboard for cutting, the baffles directly... Blocking the laser head's path prevents it from making full contact with the area of the billboard to be cut. Operators often need to manually adjust the baffle position or pause the cutting process to intervene, disrupting the continuity of the cutting process and reducing overall processing efficiency. In addition, older devices lack effective isolation mechanisms for subsequent billboards. When one billboard is being cut, the next billboard on the conveyor rollers continues to move forward, which can easily collide or squeeze with the billboard being processed. This not only damages the cutting positioning accuracy of the current billboard but may also cause the billboards to scratch each other and damage their surfaces. In severe cases, it can even cause unexpected collisions between the laser head and the billboard, damaging the equipment. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this invention provides a laser cutting device for producing irregularly shaped advertisements, solving the problems mentioned in the background section.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a laser cutting device for producing irregularly shaped advertisements, comprising a processing table, a fixed frame fixedly connected to the processing table, a sliding table slidably disposed on the outer wall of the fixed frame, and a laser head disposed on the outer wall of the sliding table. An electric push rod is disposed on the inner wall of the sliding table, and a rotating roller is disposed on the surface of the processing table. The laser cutting device for producing irregularly shaped advertisements further includes: an auxiliary device for lifting the billboard, a protective device for protecting the processing table during laser cutting, and a positioning device for limiting the position of the billboard during laser cutting. The auxiliary device includes an electric push rod disposed on the outer wall of the processing table, a push plate sliding on the outer wall of the processing table, a slide rod fixedly connected to the push plate, a lifting plate sliding on the inner wall of the processing table, and a connecting rod rotatably connecting the lifting plate and the slide rod. The output end of the electric push rod slides through the outer wall of the processing table, and the push plate is fixedly connected to the output end of the electric push rod.
[0006] Preferably, the auxiliary device further includes a sliding rod fixedly connected to the push plate, a sliding member fixedly connected to the sliding rod, a first slider sliding on the inner wall of the fixed frame, a second slider sliding on the inner wall of the fixed frame, a baffle rotatably connected to the second slider, a first rotating rod connecting the first slider and the baffle, a first connecting rod rotatably connecting the sliding member and the first slider, and a second connecting rod rotatably connecting the second slider and the sliding member. Under the linkage action, the baffle automatically retracts and fits against the surface of the fixed frame, removing the obstruction to the movement path of the laser head. This allows the laser head to move smoothly into position, fully contact the billboard, and perform precise cutting, ensuring the smooth execution of the cutting action.
[0007] Preferably, the surface of the fixing frame is provided with a sliding groove, and the first slider slides on the inner wall of the sliding groove, and the second slider slides on the inner wall of the sliding groove.
[0008] Preferably, the protective device includes a protective plate that slides inside the lifting plate, a fixed block that is fixedly connected to the protective plate, a rotating component 1 that is rotatably connected to the fixed block, and a connecting rod 2 that rotatably connects the rotating component 1 to the processing table. The protective plate forms a physical barrier between the billboard and the processing table, preventing the laser from penetrating the billboard and directly burning the surface of the processing table, thus effectively extending the service life of the processing table.
[0009] Preferably, the protective device further includes a sliding component that slides on the inner wall of the lifting plate, a stop bar that slides on the inner wall of the lifting plate, and a rotating component two that rotatably connects the sliding component and the stop bar. A sliding groove is provided on the side of the lifting plate near the rotating component two. When the lifting plate moves upward, the sliding component loses contact with the processing table and moves away from the protective plate. The movement of the sliding component pushes the stop bar upward through the rotating component two. The upward movement of the stop bar blocks the side of the lifting plate, preventing the billboard from falling off during laser cutting.
[0010] Preferably, the side of the sliding member closest to the sliding groove is provided as an inclined surface. The inclined surface of the sliding member is provided so that it can be pushed back to its original position by the processing table during reset. An elastic element is provided between the sliding member and the lifting plate. The elastic element is provided so that the sliding member can move away from the lifting plate. A protrusion is provided on one surface of the rotating member.
[0011] Preferably, the positioning device includes a sliding plate slidably connected to the push plate, a fixing key fixedly connected to the sliding plate, a sliding key sliding on the inner wall of the push plate, a pressure plate slidably connected to the push plate, and a rack fixedly connected to the pressure plate. The rack has a slot on the side near the sliding key, and the sliding key contacts the inside of the slot. After the sliding plate contacts the billboard, it will move a certain distance towards the push plate according to the actual position of the billboard, and then trigger the pressure plate to press down. This adaptive triggering mechanism ensures that the pressure plate only moves after the billboard is in place.
[0012] Preferably, the positioning device further includes a gear fixedly connected to the push plate, a fixed plate fixedly connected to the processing table, a rotating block rotatably connected to the fixed plate, and a limiting key fixedly connected to the rotating block. The gear is matched with the fixed plate and the gear is matched with the rack.
[0013] Preferably, an elastic element is provided between the pressure plate and the push plate to move the pressure plate downwards; an elastic element is provided between the sliding plate and the push plate to reset the sliding plate; the fixed key has an inclined surface on the side near the sliding key; an elastic element is provided between the sliding key and the push plate to reset the sliding key; and a torsion spring is provided between the rotating block and the fixed plate to reset the rotating block.
[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this invention, the billboard is lifted upwards by a lifting plate, causing it to detach from the processing table surface. This prevents the laser beam from directly penetrating the billboard and damaging or burning the processing table surface during laser cutting, protecting the equipment and avoiding a decrease in cutting quality due to unevenness of the table surface. The baffle automatically retracts and fits against the surface of the fixing frame under the linkage, removing the obstruction to the laser head's movement path. This allows the laser head to move smoothly into position, fully contact the billboard, and perform precise cutting, ensuring smooth execution of the cutting action. After the baffle retracts, it or its related structure forms a physical barrier against subsequent billboards, effectively preventing the next billboard from accidentally entering the working area during the cutting process. This avoids collisions between billboards or affecting the current laser cutting process, improving the continuity and safety of the operation.
[0015] 2. In this invention, when the lifting plate moves upward, the sliding component loses contact with the processing table and moves away from the protective plate. The movement of the sliding component pushes the stop bar upward through the rotating component. The upward movement of the stop bar blocks the side of the lifting plate, preventing the billboard from falling off during laser cutting. When the lifting plate moves upward, the protective plate moves simultaneously away from the lifting plate to the bottom of the billboard. In this way, during laser cutting, the protective plate forms a physical barrier between the billboard and the processing table, preventing the laser from penetrating the billboard and directly burning the surface of the processing table, effectively extending the service life of the processing table. At the same time, it avoids the problem of uneven cut surface of the billboard caused by damage to the table surface. After the stop bar rises, it blocks the side of the lifting plate, effectively preventing the billboard from slipping off the side of the lifting plate due to vibration or external force during laser cutting, thus improving the safety and stability of the cutting process.
[0016] 3. In this invention, when the push plate drives the gear to move towards the billboard, the gear will push the rotating block to rotate. The limit key will not block the rotating block. After the sliding plate contacts the billboard, it will move a certain distance towards the push plate according to the actual position of the billboard, and then trigger the pressure plate to press down. This adaptive triggering mechanism ensures that the pressure plate only moves after the billboard is in place, so that the pressure plate automatically presses down on the billboard under the action of the elastic element. In this way, the billboard is firmly fixed during laser cutting and will not shift due to vibration or external force, thereby ensuring the straightness and dimensional accuracy of the cut edge, improving the finished quality of the billboard. It can be reliably fixed and will not scratch or damage the surface of the billboard due to premature pressing. It is especially suitable for billboards with surface coatings or soft materials. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the position structure of the push plate and slide bar of the present invention; Figure 3This is a schematic diagram of the connecting rod and lifting plate position structure of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram of section A; Figure 5 This is a schematic diagram of the baffle and connecting rod at one position of the present invention; Figure 6 This is a schematic diagram of the position structure of the sliding plate and the fixing key of the present invention; Figure 7 This is a schematic diagram of the position structure of the rotating block and the limiting key of the present invention; Figure 8 This is a schematic diagram showing the position and structure of the lifting plate and the protective plate of the present invention; Figure 9 For the present invention Figure 8 Enlarged structural diagram of section B.
[0018] The meanings of the labels in the diagram are as follows: 1. Processing table; 2. Fixing frame; 3. Sliding table; 4. Laser head; 5. Electric push rod; 6. Push plate; 7. Slide rod; 8. Connecting rod one; 9. Lifting plate; 10. Sliding rod; 11. Sliding component; 12. Slider one; 13. Rotating rod one; 14. Baffle; 15. Connecting rod one; 16. Slider two; 17. Connecting rod two; 21. Protective plate; 22. Fixing block; 23. Connecting rod two; 24. Rotating component one; 25. Sliding component; 26. Rotating component two; 27. Stop bar; 31. Sliding plate; 32. Fixing key; 33. Sliding key; 34. Rack; 35. Pressure plate; 36. Gear; 37. Fixing plate; 38. Rotating block; 39. Limit key. Detailed Implementation
[0019] 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.
[0020] Please see Figures 1-5 One embodiment of the present invention is: a laser cutting device for making irregularly shaped advertisements, including a processing table 1, a fixed frame 2 fixedly connected to the processing table 1, a sliding table 3 slidably disposed on the outer wall of the fixed frame 2, and a laser head 4 disposed on the outer wall of the sliding table 3. An electric push rod is disposed on the inner wall of the sliding table 3, and a rotating roller is disposed on the surface of the processing table 1. The laser cutting device for making irregularly shaped advertisements also includes: an auxiliary device for lifting the billboard, a protective device for protecting the processing table 1 during laser cutting, and a positioning device for limiting the billboard during laser cutting. The auxiliary device includes an electric push rod 5 installed on the outer wall of the processing table 1, a push plate 6 sliding on the outer wall of the processing table 1, a slide rod 7 fixedly connected to the push plate 6, a lifting plate 9 sliding on the inner wall of the processing table 1, and a connecting rod 8 rotatably connecting the lifting plate 9 and the slide rod 7. The output end of the electric push rod 5 slides through the outer wall of the processing table 1, and the push plate 6 is fixedly connected to the output end of the electric push rod 5.
[0021] The auxiliary device also includes a sliding rod 10 fixedly connected to the push plate 6, a sliding member 11 fixedly connected to the sliding rod 10, a first slider 12 sliding on the inner wall of the fixed frame 2, a second slider 16 sliding on the inner wall of the fixed frame 2, a baffle 14 rotatably connected to the second slider 16, a rotating rod 13 connecting the first slider 12 and the baffle 14, a connecting rod 15 rotatably connecting the sliding member 11 and the first slider 12, and a connecting rod 17 rotatably connecting the second slider 16 and the sliding member 11.
[0022] The surface of the fixed frame 2 is provided with a sliding groove, and slider 12 slides on the inner wall of the sliding groove, and slider 2 16 slides on the inner wall of the sliding groove.
[0023] In this embodiment, during operation: when laser cutting of the billboard is required, the billboard is conveyed by the rollers on the surface of the processing table 1. When the billboard reaches a specific position, the sliding table 3 moves the laser head 4 via the slide rails on the surface of the fixed frame 2. The electric push rod inside the sliding table 3 pushes the laser head 4 to move so that the billboard can be cut by the laser head 4. During the cutting of the billboard, the output end of the electric push rod 5 extends and pushes the push plate 6 to move. When the push plate 6 moves, it drives the slide rod 7 to move. The movement of the slide rod 7 pushes the lifting plate 9 upward through the connecting rod 8. The upward movement of the push plate 6 will push the billboard upward, thus lifting it during laser cutting. The movement of the push plate 6 will cause the sliding rod 10 to move, which in turn will push the sliding component 11. The movement of the sliding component 11 will, through connecting rod 15, push the slider 12 to move, and through connecting rod 27, push the slider 26 to move. Therefore, when the sliding component 11 moves, slider 12 and slider 26 will move in opposite directions. The movement of slider 12 will pull the rotating rod 13 to move. When slider 12 and slider 26 move in opposite directions, it will... Pulling the baffle 14 up to fit the surface of the mounting bracket 2 releases the obstruction to the laser head 4, allowing it to contact the billboard for laser cutting. Furthermore, the baffle 14, when retracted, can block subsequent billboards, preventing them from interfering with the laser cutting. Lifting the billboard 9 then raises it upwards, separating it from the processing table 1 surface. This prevents the laser beam from directly penetrating the billboard and damaging or burning the processing table 1 surface during laser cutting, protecting the equipment and avoiding quality issues caused by uneven table surfaces. As the laser head descends, the baffle 14 automatically retracts and fits against the surface of the mounting frame 2 under the linkage, removing the obstruction to the movement path of the laser head 4. This allows the laser head 4 to move smoothly into position, fully contact the billboard, and perform precise cutting, ensuring the smooth execution of the cutting action. After the baffle 14 retracts, it or its related structure will physically block the billboards that are subsequently transported, which can effectively prevent the next billboard from accidentally entering the working area during the cutting process, avoiding collisions between billboards or affecting the current laser cutting process, and improving the continuity and safety of the operation.
[0024] Please see Figures 3-9 Based on the above embodiments, in another embodiment of the present invention, the protective device includes a protective plate 21 that slides inside the lifting plate 9, a fixing block 22 that is fixedly connected to the protective plate 21, a rotating component 24 that is rotatably connected to the fixing block 22, and a connecting rod 23 that rotatably connects the rotating component 24 to the processing table 1.
[0025] The protective device also includes a sliding member 25 that slides on the inner wall of the lifting plate 9, a stop bar 27 that slides on the inner wall of the lifting plate 9, and a rotating member 26 that rotatably connects the sliding member 25 and the stop bar 27. A sliding groove is provided on the side of the lifting plate 9 near the rotating member 26.
[0026] The side of the sliding member 25 near the sliding groove is set as an inclined surface. The inclined surface of the sliding member 25 is so that it can be pushed and reset by the processing table 1 during reset. An elastic element is provided between the sliding member 25 and the lifting plate 9. The elastic element is provided to drive the sliding member 25 to move away from the lifting plate 9. The surface of the rotating member 24 is provided with protrusions.
[0027] The positioning device includes a sliding plate 31 slidably connected to the push plate 6, a fixing key 32 fixedly connected to the sliding plate 31, a sliding key 33 sliding on the inner wall of the push plate 6, a pressure plate 35 slidably connected to the push plate 6, and a rack 34 fixedly connected to the pressure plate 35. A slot is provided on the side of the rack 34 near the sliding key 33, and the sliding key 33 contacts the inside of the slot.
[0028] The positioning device also includes a gear 36 fixedly connected to the push plate 6, a fixed plate 37 fixedly connected to the processing table 1, a rotating block 38 rotatably connected to the fixed plate 37, and a limit key 39 fixedly connected to the rotating block 38. The gear 36 is matched with the fixed plate 37 and the gear 36 is matched with the rack 34.
[0029] An elastic element is provided between the pressure plate 35 and the push plate 6. The elastic element is provided to drive the pressure plate 35 to move downward. An elastic element is provided between the sliding plate 31 and the push plate 6. The elastic element is provided to drive the sliding plate 31 to reset. The fixed key 32 is set with an inclined surface on the side near the sliding key 33. An elastic element is provided between the sliding key 33 and the push plate 6. The elastic element is provided to drive the sliding key 33 to reset. A torsion spring is provided between the rotating block 38 and the fixed plate 37. The torsion spring is provided to drive the rotating block 38 to reset.
[0030] In this embodiment, when the lifting plate 9 moves upward, it drives the protective plate 21 to move. The movement of the protective plate 21 drives the fixed block 22 to move. The movement of the fixed block 22 drives the rotating component 24 to move. When the fixed block 22 is driven by the protective plate 21, the rotating component 24 is pulled by the connecting rod 23. The connecting rod 23 pulls the rotating component 24, which in turn drives the protective plate 21 to move through the fixed block 22. The protective plate 21 then moves away from the lifting plate 9. At this time, the protective plate 21 is at the bottom of the billboard. During laser cutting, the protective plate 21 will block the laser from contacting the processing table 1. When the lifting plate 9 moves upward, the sliding component 25 loses contact with the processing table 1 and moves away from the protective plate 21. The movement of the sliding component 25 will push the stop bar 27 upward through the rotating component 26. The upward movement of the stop bar 27 will block the side of the lifting plate 9, preventing the billboard from falling off during laser cutting. When the lifting plate 9 moves upward, the protective plate 21 will move simultaneously away from the lifting plate 9 to the bottom of the billboard. In this way, during laser cutting, the protective plate 21 forms a physical barrier between the billboard and the processing table 1, preventing the laser from penetrating the billboard and directly burning the surface of the processing table 1, effectively extending the service life of the processing table 1, and avoiding the problem of uneven cut surface of the billboard due to damage to the table surface. After the stop bar 27 is raised, it blocks the side of the lifting plate 9, effectively preventing the billboard from slipping off the side of the lifting plate 9 due to vibration or external force during laser cutting, thus improving the safety and stability of the cutting process.
[0031] When the push plate 6 moves towards the billboard, it will cause the sliding plate 31 to move. At this time, the sliding plate 31 will come into contact with the billboard. When the sliding plate 31 comes into contact with the billboard, it will be subjected to the force of the billboard. At this time, the sliding plate 31 will move towards the push plate 6. The movement of the sliding plate 31 will push the fixed key 32 to move. When the sliding plate 31 moves, it will push the fixed key 32 to come into contact with the sliding key 33. Then the sliding key 33 will be pushed by the inclined surface of the fixed key 32. At this time, the sliding key 33 is fixed. When key 32 is pushed, it moves away from rack 34. At this time, the sliding key 33 releases its limit on rack 34, allowing pressure plate 35 to move downward under the pull of the elastic element. The downward movement of pressure plate 35 fixes the billboard, preventing it from shifting during laser cutting. When push plate 6 resets, it drives gear 36 to move. Gear 36 then contacts rotating block 38, pushing it to rotate. The rotation of rotating block 38 pushes limit key 39 to rotate, thus limiting the movement. Key 39 will contact the fixed plate 37 to block the rotation of the rotating block 38. At this time, the gear 36 will be pushed by the rotating block 38 to rotate. The rotation of the gear 36 will drive the pressure plate 35 to reset through the rack 34. When the push plate 6 drives the gear 36 to move towards the billboard, the gear 36 will push the rotating block 38 to rotate. The limit key 39 will not block the rotating block 38. After the sliding plate 31 contacts the billboard, it will move a certain distance towards the push plate 6 according to the actual position of the billboard, and then trigger the pressure plate 35 to press down. This adaptive triggering mechanism ensures that the pressure plate 35 only moves after the billboard is in place, so that the pressure plate 35 automatically presses the billboard down under the action of the elastic element. In this way, the billboard is firmly fixed during laser cutting and will not shift due to vibration or external force, thereby ensuring the straightness and dimensional accuracy of the cutting edge and improving the finished quality of the billboard. It can be reliably fixed and will not scratch or damage the billboard surface due to premature pressing. It is especially suitable for billboards with surface coatings or soft materials.
[0032] 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.
[0033] 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 producing irregularly shaped advertisements, comprising a processing table (1), a fixed frame (2) fixedly connected to the processing table (1), a sliding table (3) slidably disposed on the outer wall of the fixed frame (2), and a laser head (4) disposed on the outer wall of the sliding table (3), wherein an electric push rod is disposed on the inner wall of the sliding table (3), and a rotating roller is disposed on the surface of the processing table (1), characterized in that, The laser cutting device for making irregularly shaped advertisements also includes: an auxiliary device for lifting the billboard, a protective device for protecting the processing table (1) during laser cutting, and a positioning device for limiting the billboard during laser cutting. The auxiliary device includes an electric push rod (5) disposed on the outer wall of the processing table (1), a push plate (6) sliding on the outer wall of the processing table (1), a slide rod (7) fixedly connected to the push plate (6), a lifting plate (9) sliding on the inner wall of the processing table (1), and a connecting rod (8) rotatably connecting the lifting plate (9) and the slide rod (7). The output end of the electric push rod (5) slides through the outer wall of the processing table (1), and the push plate (6) is fixedly connected to the output end of the electric push rod (5).
2. The laser cutting device for producing irregularly shaped advertisements according to claim 1, characterized in that: The auxiliary device also includes a sliding rod (10) fixedly connected to the push plate (6), a sliding member (11) fixedly connected to the sliding rod (10), a slider one (12) sliding on the inner wall of the fixed frame (2), a slider two (16) sliding on the inner wall of the fixed frame (2), a baffle (14) rotatably connected to the slider two (16), a rotating rod one (13) connecting the slider one (12) and the baffle (14), a connecting rod one (15) rotatably connecting the sliding member (11) and the slider one (12), and a connecting rod two (17) rotatably connecting the slider two (16) and the sliding member (11).
3. The laser cutting device for producing irregularly shaped advertisements according to claim 2, characterized in that: The surface of the fixed frame (2) is provided with a sliding groove, the first slider (12) slides on the inner wall of the sliding groove, and the second slider (16) slides on the inner wall of the sliding groove.
4. The laser cutting device for producing irregularly shaped advertisements according to claim 1, characterized in that: The protective device includes a protective plate (21) that slides inside the lifting plate (9), a fixing block (22) that is fixedly connected to the protective plate (21), a rotating component (24) that is rotatably connected to the fixing block (22), and a connecting rod (23) that rotatably connects the rotating component (24) to the processing table (1).
5. The laser cutting device for producing irregularly shaped advertisements according to claim 4, characterized in that: The protective device also includes a sliding member (25) that slides on the inner wall of the lifting plate (9), a stop bar (27) that slides on the inner wall of the lifting plate (9), and a rotating member two (26) that rotatably connects the sliding member (25) and the stop bar (27). A sliding groove is provided on the side of the lifting plate (9) near the rotating member two (26).
6. The laser cutting device for producing irregularly shaped advertisements according to claim 5, characterized in that: The sliding member (25) has an inclined surface on the side near the sliding groove. An elastic element is provided between the sliding member (25) and the lifting plate (9). A protrusion is provided on the surface of the rotating member (24).
7. The laser cutting device for producing irregularly shaped advertisements according to claim 1, characterized in that: The positioning device includes a sliding plate (31) slidably connected to the push plate (6), a fixing key (32) fixedly connected to the sliding plate (31), a sliding key (33) sliding on the inner wall of the push plate (6), a pressure plate (35) slidably connected to the push plate (6), and a rack (34) fixedly connected to the pressure plate (35). The rack (34) has a slot on the side near the sliding key (33), and the sliding key (33) contacts the inside of the slot.
8. The laser cutting device for producing irregularly shaped advertisements according to claim 7, characterized in that: The positioning device also includes a gear (36) fixedly connected to the push plate (6), a fixed plate (37) fixedly connected to the processing table (1), a rotating block (38) rotatably connected to the fixed plate (37), and a limiting key (39) fixedly connected to the rotating block (38). The gear (36) is matched with the fixed plate (37), and the gear (36) is matched with the rack (34).
9. The laser cutting device for producing irregularly shaped advertisements according to claim 8, characterized in that: An elastic element is provided between the pressure plate (35) and the push plate (6), an elastic element is provided between the sliding plate (31) and the push plate (6), the fixed key (32) is provided with an inclined surface on the side near the sliding key (33), an elastic element is provided between the sliding key (33) and the push plate (6), and a torsion spring is provided between the rotating block (38) and the fixed plate (37).