Grille label laser cutting tool

Abstract

The utility model discloses a grating label laser cutting tool which comprises a working table, two sets of supporting legs are symmetrically installed at the bottom of the working table, supporting frames are symmetrically arranged at the top of the working table, a movable seat is fixedly installed at the bottom of the supporting frame on one side, and a longitudinal electric sliding table is fixedly installed on one side of the top of the working table. A longitudinal electric sliding table is fixedly installed on the lower portion of the interior of the supporting frame on the other side, a movable base is fixedly installed on the lower portion of the interior of the supporting frame on the other side, the movable base is slidably connected with the longitudinal electric sliding table, and a transverse electric sliding table is fixedly installed on the upper portion between the two supporting frames and is externally slidably connected with a movable frame. The fixed frame is fixedly connected with the workbench, and a mounting frame is fixedly mounted on one side of the bottom of the movable frame; and smoke generated by cutting can be absorbed, the absorption effect can be guaranteed, the situation that the working environment is affected by smoke dispersion in the cutting process is avoided, and practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting technology, specifically to a laser cutting fixture for grid signs. Background Technology

[0002] Grille signs can be used to display information, and cutting fixtures are required during the production and processing of grille signs.

[0003] Publication number CN222679830U discloses a laser cutting device for sign production. This patent uses a limiting component with a support plate. By pushing the support plate, the right end of a push plate contacts the sign, and the pushing component engages with the sign. The required cutting size is set, and screws pass through a fixing block and contact the support plate to position the limiting component. After cutting, the sign can be pushed out by sliding the pushing component, improving flexibility. However, this patent still has the following problems in practical use:

[0004] Limiting components can be used to conveniently limit the movement of signs and labels. However, in actual use, laser cutting is used. During the cutting process, the material is heated by a high-power-density laser beam, and the surface temperature of the material rises rapidly to the boiling point or vaporization point. Some of the material vaporizes into steam and disappears, while some of the material is oxidized under the action of the laser beam, forming smoke. The smoke generated by cutting contains a large number of harmful substances, such as metal particles and volatile organic compounds, which can cause harm to the health of workers.

[0005] A laser cutting fixture for grid signs was proposed to address the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a laser cutting fixture for grid signs, in order to solve the problem mentioned in the background art that while current methods of setting limit components are convenient for limiting signs, in actual use, when cutting with a laser, the material surface temperature rises rapidly to the boiling point or vaporization point under the heating of the high-power density laser beam. Some of the material vaporizes into steam and disappears, while some of the material is oxidized under the action of the laser beam, forming smoke. The smoke generated during cutting contains a large number of harmful substances, such as metal particles and volatile organic compounds, which can cause harm to the health of workers.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a laser cutting fixture for grid signs, including a worktable;

[0008] The bottom of the workbench is symmetrically equipped with two sets of support legs, and the top of the workbench is symmetrically equipped with support frames. A movable seat is fixedly installed at the bottom of one support frame, and a longitudinal electric slide is fixedly installed on one side of the top of the workbench. The movable seat is slidably connected to the longitudinal electric slide. A transverse electric slide is fixedly installed above the two support frames, and a movable frame is slidably connected to the outside of the transverse electric slide.

[0009] Also includes:

[0010] On the other side, a support rod is slidably connected to the lower interior of the support frame, and fixed frames are fixedly installed at both ends of the support rod. The fixed frames are fixedly connected to the workbench. A mounting frame is fixedly installed on one side of the bottom of the movable frame, and a laser cutting head is fixedly installed inside the mounting frame. A rotating component is provided on the other side of the bottom of the movable frame, and a purification component is provided on the top of the workbench on one side of the movable seat.

[0011] The rotating assembly includes a U-shaped frame fixedly installed on the other side of the bottom of the movable frame, and a drive motor is fixedly installed on the top inner side of the U-shaped frame. The output end of the drive motor passes through the U-shaped frame and is fixedly installed with a rotating shaft. A housing is fixedly installed at the bottom of the U-shaped frame.

[0012] The rotating shaft has a rotating blade fixedly installed on its outer side, and a connecting frame is symmetrically installed on the lower outer side of the mounting frame.

[0013] Preferably, an annular tube is fixedly installed at the bottom of the two connecting frames, and two sets of air intake pipes are symmetrically opened through the bottom of the annular tube. A connecting hose is connected through one side of the bottom of the housing, and the end of the connecting hose away from the housing is connected through the annular tube. The rotating shaft is rotatably connected to the housing, and the bottom end of the rotating shaft passes through the housing and is fixedly installed with a drive gear.

[0014] Preferably, a limiting frame is fixedly installed on the lower part of the outer side of the housing, and a rotating rod is rotatably connected to the inner side of the limiting frame. A driven gear is fixedly installed on the outer side of the rotating rod, and the driven gear meshes with the driving gear. The top end of the rotating rod is rotatably connected to the housing, and a turntable is fixedly installed at the bottom end of the rotating rod. An installation rod is fixedly installed on the bottom side of the turntable.

[0015] Preferably, the mounting rod is rotatably connected to a rotating sleeve, and a connecting rope is fixedly installed on one side of the rotating sleeve. A connecting post is fixedly installed at the end of the connecting rope away from the rotating sleeve, and the connecting post is fixedly connected to the annular tube. Mounting sleeves are symmetrically slidably connected to the outside of the annular tube, and the two mounting sleeves are fixedly connected to two mounting brackets respectively. A telescopic spring is fitted on one side of the two mounting sleeves on the outside of the annular tube, and one end of the telescopic spring is fixedly connected to the mounting sleeve. A fixing block is fixedly installed at the other end of the telescopic spring, and the fixing block is fixedly connected to the annular tube.

[0016] Preferably, the top of the workbench has a through-hole discharge groove, and several placement racks are fixedly installed inside the discharge groove. A discharge hopper is fixedly installed at the bottom of the workbench. An L-shaped frame is fixedly installed on one side of the right support frame, and a support sleeve is rotatably connected to one end of the L-shaped frame. A through groove is opened on one side of the right support frame below the L-shaped frame, and a flexible installation hose is connected through the top of one side of the housing.

[0017] Preferably, the purification component includes a box fixedly installed on the top right side of the workbench, with one end of the installation hose passing through the support sleeve and the through groove and being connected to the box. An exhaust pipe is provided through the lower side of one side of the box. The box has symmetrically provided installation slots inside, and installation frames are slidably connected inside both installation slots. A filter layer and an activated carbon layer are respectively provided inside the two installation frames.

[0018] Preferably, a positioning frame is fixedly installed on one side of each of the two mounting frames, and a sealing gasket is fixedly installed on one side of the positioning frame. The housing is symmetrically connected to rotating rods on both sides of the two positioning frames. A limit plate is slidably connected to the outer side of the rotating rod, and an anti-slip pad is fixedly installed on one side of the limit plate. A return spring is sleeved on the outer side of the rotating rod on the side of the limit plate, and the two ends of the return spring are fixedly connected to the rotating rod and the limit plate, respectively.

[0019] Compared with the prior art, the beneficial effects of this utility model are: the laser cutting fixture for grille signs can absorb the smoke generated during laser cutting of grille signs, ensuring the absorption effect, preventing smoke dispersion during the cutting process from affecting the working environment, and improving practicality. The specific details are as follows:

[0020] 1. When laser cutting grating signs, the material is placed on a rack and cut using a laser cutting head. During the cutting process, the cutting position can be adjusted using a longitudinal and transverse electric slide. The drive motor rotates the rotating shaft, causing the rotating blades to rotate and creating a negative pressure effect in the housing. Air can be drawn into the annular tube via a connecting hose, allowing smoke to enter. Two sets of suction pipes ensure sufficient suction power. Smoke enters the housing and is then discharged through the connecting hose. During rotation, the rotating shaft drives a rotating rod through the meshing of a drive gear and a driven gear. The rotating rod's rotation causes the turntable to rotate, which in turn causes the rotating sleeve to rotate circumferentially. During this rotation, the annular tube can be pulled circumferentially between the two mounting sleeves via a connecting rope. The movement of the annular tube stretches a telescopic spring, causing the annular tube to oscillate back and forth due to the continuous rotation of the turntable. This expands the suction range and ensures effective suction. The rotating assembly absorbs the smoke generated during cutting, ensuring effective absorption and preventing smoke dispersion from affecting the working environment, thus improving practicality.

[0021] 2. Smoke can enter the chamber through the installed hose. The filter layer and activated carbon layer filter and adsorb the smoke, purifying it. When cleaning or replacing the filter layer and activated carbon layer, pull the limiting plate to move it, compressing the return spring and causing the limiting plate to no longer be in contact with the positioning frame. Then, rotate the rotating rod to misalign the limiting plate with the positioning frame, allowing the positioning frame to lose its limit. The mounting frame can then be removed for cleaning of the filter layer or activated carbon layer. When installing the mounting frame, insert it into the mounting slot, then move the limiting plate and rotate the rotating rod to block the positioning frame. Releasing the limiting plate allows the return spring to bring it into contact with the positioning frame, thus positioning the frame. This effectively purifies the smoke generated during cutting and facilitates cleaning or replacement of the filter layer and activated carbon layer, improving practicality. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the front cross-section structure of this utility model;

[0023] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0024] Figure 3 This is a partial three-dimensional structural diagram of the rotating component of this utility model;

[0025] Figure 4 This is a schematic diagram of the front sectional view of the box body of this utility model;

[0026] Figure 5 This utility model Figure 4 A magnified structural diagram of region B in the middle.

[0027] In the diagram: 1. Workbench; 101. Support leg; 102. Support frame; 103. Movable seat; 104. Longitudinal electric slide; 105. Support rod; 106. Fixed frame; 107. Transverse electric slide; 108. Movable frame; 109. Mounting frame; 1091. Laser cutting head; 110. Discharge trough; 111. Placement rack; 112. Discharge hopper; 113. L-shaped frame; 114. Support sleeve; 115. Through groove; 116. Mounting hose; 2. Rotating assembly; 201. U-shaped frame; 202. Drive motor; 203. Housing; 204. Rotating shaft; 205. Rotating blade; 206. Connecting... 207. Connecting frame; 208. Annular tube; 209. Suction tube; 210. Connecting hose; 211. Driving gear; 212. Limiting frame; 213. Rotating rod; 214. Driven gear; 215. Turntable; 216. Mounting rod; 217. Rotating sleeve; 218. Connecting rope; 219. Connecting column; 220. Mounting sleeve; 221. Telescopic spring; 3. Fixing block; 301. Purification component; 302. Box body; 303. Mounting groove; 304. Mounting frame; 305. Activated carbon layer; 306. Positioning frame; 307. Rotating rod; 308. Return spring; 309. Limiting plate. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-5This utility model provides a technical solution: a laser cutting fixture for grid signs, including a worktable 1. Two sets of support legs 101 are symmetrically installed at the bottom of the worktable 1, and support frames 102 are symmetrically arranged at the top of the worktable 1. A movable seat 103 is fixedly installed at the bottom of one support frame 102. A longitudinal electric slide 104 is fixedly installed on one side of the top of the worktable 1, and the movable seat 103 is slidably connected to the longitudinal electric slide 104. A transverse electric slide 107 is fixedly installed above the two support frames 102, and a movable frame 108 is slidably connected to the outside of the transverse electric slide 107. The fixture also includes: a support rod 105 slidably connected to the lower interior of the other support frame 102, and fixed frames 106 are fixedly installed at both ends of the support rod 105. The fixed frames 106 are fixedly connected to the worktable 1, and a mounting frame 109 is fixedly installed on one side of the bottom of the movable frame 108. Furthermore, a laser cutting head 1091 is fixedly installed inside the mounting frame 109, and a rotating component 2 is provided on the other side of the bottom of the movable frame 108. A purification component 3 is provided on the top of the workbench 1 on one side of the movable seat 103. The rotating component 2 includes a U-shaped frame 201 fixedly installed on the other side of the bottom of the movable frame 108. A drive motor 202 is fixedly installed on the top inner side of the U-shaped frame 201. The output end of the drive motor 202 passes through the U-shaped frame 201 and is fixedly installed with a rotating shaft 204. A housing 203 is fixedly installed at the bottom of the U-shaped frame 201. A rotating blade 205 is fixedly installed on the outer side of the rotating shaft 204. A connecting frame 206 is symmetrically installed on the lower outer side of the mounting frame 109. The rotating component 2 can absorb the smoke generated during cutting, ensuring the absorption effect and preventing the smoke from spreading during the cutting process and affecting the working environment, thus improving practicality.

[0030] Annular tubes 207 are fixedly installed at the bottom of two connecting brackets 206, and two sets of suction pipes 208 are symmetrically opened through the bottom of the annular tubes 207. A connecting hose 209 is connected through one side of the bottom of the housing 203, and the end of the connecting hose 209 away from the housing 203 is connected through the annular tube 207. A rotating shaft 204 is rotatably connected to the housing 203, and the bottom end of the rotating shaft 204 passes through the housing 203 and is fixedly installed with a drive gear 210, so that the rotation of the rotating shaft 204 can absorb smoke. A limiting bracket 211 is fixedly installed on the lower part of the outer side of the housing 203, and a rotating rod 212 is rotatably connected to the inner side of the limiting bracket 211. A driven gear 2121 is fixedly installed on the outside of the rotating rod 212, and the driven gear 2121 meshes with the drive gear 210. The top end of the rotating rod 212 is rotatably connected to the housing 203, and a turntable 213 is fixedly installed at the bottom end of the rotating rod 212. A mounting rod 214 is fixedly installed on one side of the bottom of 13, so that the rotation of the rotating shaft 204 can drive the rotating rod 212 to rotate. A rotating sleeve 215 is rotatably connected to the outside of the mounting rod 214, and a connecting rope 216 is fixedly installed on one side of the outside of the rotating sleeve 215. A connecting post 217 is fixedly installed at the end of the connecting rope 216 away from the rotating sleeve 215. The connecting post 217 is fixedly connected to the annular tube 207. Mounting sleeves 218 are symmetrically slidably connected to the outside of the annular tube 207. The two mounting sleeves 218 are fixedly connected to the two mounting brackets 109 respectively. A telescopic spring 219 is sleeved on one side of the two mounting sleeves 218 on the outside of the annular tube 207. One end of the telescopic spring 219 is fixedly connected to the mounting sleeve 218, and a fixing block 220 is fixedly installed at the other end of the telescopic spring 219. The fixing block 220 is fixedly connected to the annular tube 207, so that the rotation of the rotating rod 212 can cause the annular tube 207 to reciprocate circumferentially.

[0031] A discharge trough 110 is provided through the top of the workbench 1, and several placement racks 111 are fixedly installed inside the discharge trough 110. A discharge bucket 112 is fixedly installed at the bottom of the workbench 1. An L-shaped frame 113 is fixedly installed on one side of the right support frame 102, and a support sleeve 114 is rotatably connected to one end of the L-shaped frame 113. A through groove 115 is provided through one side of the right support frame 102 below the L-shaped frame 113. A flexible installation hose 116 is connected through the upper side of one side of the housing 203 to support the flexible installation hose 116. The purification component 3 includes a box 301 fixedly installed on the right side of the top of the workbench 1. One end of the flexible installation hose 116 passes through the support sleeve 114 and the through groove 115 and is connected through the box 301. An exhaust pipe is provided through the lower side of one side of the box 301. The interior of the box 301... The device is equipped with two mounting slots 302, and mounting frames 303 are slidably connected inside each mounting slot 302. A filter layer 304 and an activated carbon layer 305 are respectively installed inside each mounting frame 303 to purify smoke. A positioning frame 306 is fixedly installed on one side of each mounting frame 303, and a sealing gasket is fixedly installed on one side of each positioning frame 306. Rotating rods 307 are symmetrically connected to both sides of the housing 301 on both sides of the two positioning frames 306. A limiting plate 309 is slidably connected to the outer side of each rotating rod 307, and an anti-slip pad is fixedly installed on one side of the limiting plate 309. A return spring 308 is sleeved on the outer side of the rotating rod 307 on one side of the limiting plate 309, and both ends of the return spring 308 are fixedly connected to the rotating rod 307 and the limiting plate 309 respectively, facilitating the assembly and disassembly of the mounting frames 303.

[0032] Working principle: Before using this laser cutting fixture for grid signs, it is necessary to check the overall condition of the device to ensure it can operate normally. Figure 1 - Figure 5As shown, when laser cutting the grid sign, the material is placed on the placement rack 111 and cut by the laser cutting head 1091. During the cutting process, the cutting position can be adjusted by the longitudinal electric slide 107 and the transverse electric slide 104. During the cutting process, the drive motor 202 is started to drive the rotating shaft 204 to rotate, causing the rotating blade 205 to rotate, which creates a negative pressure effect in the housing 203. Air can be sucked into the annular pipe 207 through the connecting hose 209, allowing smoke to enter the annular pipe 207. The two sets of suction pipes 208 can ensure the suction power requirement. The smoke can enter the housing 203 and then be discharged through the installed hose 116. During the rotation of the rotating shaft 204, the active gear... The meshing of wheel 210 and driven gear 2121 drives rotating rod 212 to rotate. After rotating rod 212 rotates, turntable 213 rotates, which in turn causes rotating sleeve 215 to rotate circumferentially. During the circumferential rotation of rotating sleeve 215, the connecting rope 216 can pull the annular tube 207 to slide circumferentially on the two mounting sleeves 218. After the annular tube 207 moves, it can stretch the telescopic spring 219. Then, the continuous rotation of turntable 213 can drive the annular tube 207 to swing back and forth, which can expand the air intake range and ensure the air intake effect. The rotating component 2 can absorb the smoke generated during cutting, which can ensure the absorption effect, avoid the smoke from spreading during cutting and affecting the working environment, and improve practicality.

[0033] Smoke can enter the housing 301 through the installation hose 116. The smoke is filtered and adsorbed by the filter layer 304 and activated carbon layer 305, thus purifying the smoke. When cleaning or replacing the filter layer 304 and activated carbon layer 305, pulling the limiting plate 309 moves it, compressing the return spring 308 and causing the limiting plate 309 to no longer be in contact with the positioning frame 306. Then, rotating the rotating rod 307 causes the limiting plate 309 to displace the positioning frame 306, allowing the positioning frame 306 to lose its limiting position. The mounting frame 303 can then be removed, allowing the filter layer to be cleaned and replaced. Clean the 304 or activated carbon layer 305. When installing the mounting frame 303, insert the mounting frame 303 into the mounting groove 302, then move the limiting plate 309 and rotate the rotating rod 307 so that the limiting plate 309 blocks the positioning frame 306. Then release the limiting plate 309 and under the action of the return spring 308, the limiting plate 309 will fit with the positioning frame 306, which can position the positioning frame 306, thereby purifying the smoke generated by cutting, and making it convenient to clean or replace the filter layer 304 and activated carbon layer 305, thus improving practicality.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A grid sign laser cutting tool, comprising a workbench (1); The bottom of the workbench (1) is symmetrically provided with two groups of supporting legs (101), and the top of the workbench (1) is symmetrically provided with supporting frames (102), and the bottom of one side of the supporting frame (102) is fixedly provided with a movable seat (103), and the top of the workbench (1) is fixedly provided with a longitudinal electric sliding table (104) on one side, and the movable seat (103) is slidably connected with the longitudinal electric sliding table (104), and the upper part between the two supporting frames (102) is fixedly provided with a transverse electric sliding table (107), and the outer part of the transverse electric sliding table (107) is slidably connected with a movable frame (108); characterized in that Further comprising: The inner part of the other side of the supporting frame (102) is slidably connected with a supporting rod (105) at the bottom, and the two ends of the supporting rod (105) are fixedly provided with fixed frames (106), and the fixed frames (106) are fixedly connected with the workbench (1), and the bottom of the movable frame (108) is fixedly provided with a mounting frame (109) on one side, and the inner part of the mounting frame (109) is fixedly provided with a laser cutting head (1091), and the bottom of the movable frame (108) is provided with a rotating assembly (2), and the top of the workbench (1) is provided with a purification assembly (3) on one side of the movable seat (103); Wherein, the rotating assembly (2) comprises a U-shaped frame (201) fixedly installed on the other side of the bottom of the movable frame (108), and the inner side top of the U-shaped frame (201) is fixedly provided with a driving motor (202), and the output end of the driving motor (202) penetrates through the U-shaped frame (201) and is fixedly provided with a rotating shaft (204), and the bottom of the U-shaped frame (201) is fixedly provided with a shell (203); Wherein, the outer side of the rotating shaft (204) is fixedly provided with a rotating blade (205), and the outer part of the bottom of the mounting frame (109) is symmetrically provided with a connecting frame (206).

2. The laser cutting fixture for a sign according to claim 1, wherein: The bottom end of the two connecting frames (206) is fixedly provided with an annular pipe (207), and the bottom of the annular pipe (207) is symmetrically provided with two groups of air suction pipes (208), and the bottom of the shell (203) is connected with a connecting hose (209) on one side, and the end of the connecting hose (209) away from the shell (203) is connected with the annular pipe (207), and the rotating shaft (204) is rotatably connected with the shell (203), and the bottom end of the rotating shaft (204) penetrates through the shell (203) and is fixedly provided with a driving gear (210).

3. The laser cutting fixture for a sign according to claim 2, wherein: The lower side of the outer side of the shell (203) is fixedly installed with a limiting frame (211), the inner side of the limiting frame (211) is rotatably connected with a rotating rod (212), the outer side of the rotating rod (212) is fixedly installed with a driven gear (2121), the driven gear (2121) is meshedly connected with the driving gear (210), the top end of the rotating rod (212) is rotatably connected with the shell (203), the bottom end of the rotating rod (212) is fixedly installed with a rotating disc (213), and the bottom side of the rotating disc (213) is fixedly installed with a mounting rod (214).

4. The laser cutting fixture for a sign according to claim 3, wherein: The outer side of the mounting rod (214) is rotatably connected with a rotating sleeve (215), the outer side of the rotating sleeve (215) is fixedly installed with a connecting rope (216), one end of the connecting rope (216) away from the rotating sleeve (215) is fixedly installed with a connecting column (217), the connecting column (217) is fixedly connected with the annular tube (207), the outer side of the annular tube (207) is symmetrically and slidably connected with a mounting sleeve (218), the two mounting sleeves (218) are fixedly connected with the two mounting frames (109) respectively, the outer side of the annular tube (207) is sleeved with an elastic spring (219) on one side of each of the two mounting sleeves (218), one end of the elastic spring (219) is fixedly connected with the mounting sleeve (218), the other end of the elastic spring (219) is fixedly installed with a fixed block (220), and the fixed block (220) is fixedly connected with the annular tube (207).

5. The laser cutting fixture for a sign according to claim 1, wherein: The top of the workbench (1) is provided with a discharging groove (110) penetrating therethrough, a plurality of placing frames (111) are fixedly installed in the discharging groove (110), the bottom of the workbench (1) is fixedly installed with a discharging hopper (112), one side of the right side supporting frame (102) is fixedly installed with an L-shaped frame (113), one end of the L-shaped frame (113) is rotatably connected with a supporting sleeve (114), a through groove (115) penetrating through the right side supporting frame (102) is formed on one side of the L-shaped frame (113), and the mounting hose (116) penetrates through the supporting sleeve (114) and the through groove (115) and is connected with the box body (301).

6. The laser cutting fixture for a sign according to claim 5, wherein: The purification assembly (3) comprises a box body (301) fixedly installed on the right side of the top of the workbench (1), one end of the mounting hose (116) penetrates through the supporting sleeve (114) and the through groove (115) and is connected with the box body (301), an exhaust pipe penetrating through the box body (301) is formed on the lower side of one side of the box body (301), the box body (301) is symmetrically provided with mounting grooves (302) penetrating through the inner side thereof, the inner sides of the two mounting grooves (302) are slidably connected with mounting frames (303), and the inner sides of the two mounting frames (303) are respectively provided with filter layers (304) and active carbon layers (305).

7. The laser cutting fixture for a sign according to claim 6, wherein: Two sides of the installation frame (303) are fixedly installed with positioning racks (306), one side of the positioning rack (306) is fixedly installed with a sealing gasket, and the box (301) is symmetrically rotatably connected with a rotating rod (307) on both sides of the two positioning racks (306), the outer side of the rotating rod (307) is slidably connected with a limiting plate (309), one side of the limiting plate (309) is fixedly installed with an anti-skid pad, a reset spring (308) is arranged on one side of the limiting plate (309) outside the rotating rod (307), and both ends of the reset spring (308) are fixedly connected with the rotating rod (307) and the limiting plate (309).

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