A laser engraving machine for processing wooden handicrafts

Abstract

This invention relates to the field of laser engraving machine technology, specifically disclosing a laser engraving machine for processing wooden handicrafts. It includes a base, with a housing fixedly connected to the top of the base. A screw seat is located on one side of the housing's interior, and a first cylinder is fixedly connected to the bottom of the screw seat. An assembly plate is fixedly connected to the output end of the first cylinder. A flame retardant storage box is installed on the outside of an annular sleeve. A liquid supply pump, in conjunction with a delivery pipe, delivers the flame retardant solution to a collection pipe. After atomization by an atomizing nozzle, the solution is introduced into the gas collection pipe, allowing flame retardant droplets to mix with the compressed air flow. When a flame sensor detects an open flame or spark hazard, a micro-liquid atomization is automatically completed. The flame retardant droplets are then delivered to abnormally high-temperature points using an annular air curtain, quickly achieving heat absorption and extinguishing the fire, and forming a flame-retardant isolation layer on the wood surface to prevent reignition. Simultaneously, a counting mechanism is used to count the number of abnormal processing operations, allowing staff to easily monitor the frequency of high-temperature triggering of the equipment.

Description

Technical Field

[0001] This invention relates to the field of laser engraving machine technology, and in particular to a laser engraving machine for processing wooden handicrafts. Background Technology

[0002] Laser engraving machines for wooden handicrafts are CNC engraving equipment specifically designed for processing wooden cultural and creative products, wooden carvings, and wooden ornaments. They primarily use a carbon dioxide laser beam to perform non-contact etching on the surface of the wood. The equipment relies on a CNC system to control the movement of the laser head, utilizing the high temperature of the laser to vaporize the surface of the wood, thereby engraving text, patterns, and relief designs on the surface of the wooden workpiece. Compared to traditional hand carving and mechanical tool carving, it offers higher processing precision, faster forming speed, and greater pattern plasticity, and can be adapted to various wood materials such as pine, walnut, and oak.

[0003] Conventional laser engraving machines are mostly equipped with a simple direct-blowing air structure, which can only achieve basic dust removal and surface cooling operations. They lack temperature control and regulation capabilities. During the engraving process, laser heat is easily accumulated, and the equipment cannot control the high temperature of processing in real time, which can easily cause the wood to char and carbonize. Furthermore, the high-temperature sparks are difficult to dissipate quickly, which can easily ignite wood chips and waste materials, posing a fire hazard. Therefore, improvements are urgently needed. Summary of the Invention

[0004] The purpose of this invention is to provide a laser engraving machine for processing wooden handicrafts, so as to solve the safety hazard of open flame fire in existing laser engraving machines.

[0005] To achieve the above objectives, the present invention provides a laser engraving machine for processing wooden handicrafts, comprising a base, a housing fixedly connected to the top of the base, a screw seat provided on one side of the interior of the housing, a first cylinder fixedly connected to the bottom of the screw seat, an assembly plate fixedly connected to the output end of the first cylinder, a hanging rod fixedly connected to one side of the bottom of the assembly plate, a fixed plate fixedly connected to the middle of the hanging rod, a laser engraving head fixedly connected to the bottom of the hanging rod, an annular sleeve fixedly connected to the outside of the laser engraving head on the hanging rod, an air supply mechanism provided on one side of the annular sleeve, a flame retardant mechanism provided on the side of the annular sleeve opposite the air supply mechanism, a power mechanism provided on the side of the assembly plate away from the hanging rod, a counting mechanism provided on one side of the power mechanism, a monitoring mechanism provided on the other side of the power mechanism, and an adjustment mechanism provided on one side of the housing.

[0006] Furthermore, the air delivery mechanism includes an air collecting pipe, which is fixedly connected inside the annular sleeve. A nozzle is fixedly connected to the bottom end of the air collecting pipe, and multiple nozzles are provided. An air inlet pipe is fixedly connected to the side of the air collecting pipe away from the multiple nozzles. A connecting pipe is fixedly connected to the side of the air inlet pipe away from the air collecting pipe. An air compressor is fixedly connected to the side of the assembly plate away from the hanger. An air guide pipe is fixedly connected to the air outlet end of the air compressor. One end of the air guide pipe is fixedly connected to one end of the connecting pipe.

[0007] Furthermore, the flame-retardant mechanism includes a guide tube, which is fixedly connected to the top end of the gas collecting tube, and four guide tubes are provided. A collecting tube is fixedly connected to the common top end of the four guide tubes. Atomizing nozzles are fixedly connected to both sides of the top end of the collecting tube. A feeding tube is fixedly connected to one side of two atomizing nozzles. A conveying tube is fixedly connected to the common side of two feeding tubes. A flame retardant storage box is fixedly connected to one end of the conveying tube. The flame retardant storage box is fixedly connected to the outside of the annular sleeve.

[0008] Furthermore, a block is fixedly connected to the top of the collecting pipe near the side of the conveying pipe, and the conveying pipe is fixedly connected to the block. A liquid supply pump is fixedly connected to the middle of the conveying pipe, and a solenoid valve is fixedly connected to the side of the conveying pipe near the liquid supply pump.

[0009] Furthermore, the power mechanism includes a first motor, which is fixedly connected to the mounting plate on one side of the first cylinder. The output end of the first motor is fixedly connected to a first drive gear. A first driven gear is meshed with one side of the first drive gear. A rotating disk is fixedly connected to one side of the first driven gear. The rotating disk is rotatably connected to the lower side of the fixed disk, and a conductive slip ring is coaxially sleeved and fixed between the rotating disk and the fixed disk. One side of the boom passes through the rotating disk, and the monitoring mechanism is installed on one side of the rotating disk.

[0010] Furthermore, the monitoring mechanism includes an inclined plate, which is fixedly connected to one side of the rotating disk. An infrared temperature measurement module is fixedly connected to one side of the inclined plate, and a flame sensor is fixedly connected to the side of the inclined plate closest to the infrared temperature measurement module. The probes of both the infrared temperature measurement module and the flame sensor are inclined.

[0011] Furthermore, the counting mechanism includes a push block, which is fixedly connected to one side of the top of the first drive gear. A fixed frame is fixedly connected to one side of the bottom of the air compressor. A touch counter is fixedly connected to one side of the fixed frame. A transmission block is provided on one side of the fixed frame. A transmission rod is fixedly connected to one end of the transmission block near the touch counter. One side of the transmission rod is in movable contact with the touch counter.

[0012] Furthermore, springs are fixedly connected to both sides of one end of the fixed frame, and the common side of the two springs is fixedly connected to the transmission block. One side of the pushing block is in movable contact with one side of the transmission block, and the contact surfaces of the transmission block and the pushing block are both arc-shaped structures.

[0013] Furthermore, the adjustment mechanism includes a second motor, which is fixedly connected to one side of the housing. A second driving gear is fixedly connected to the output end of the second motor. A second driven gear is meshed with one side of the second driving gear. A lead screw is fixedly connected to one side of the second driven gear. The lead screw is rotatably connected to the housing through a bearing. Guide rods are fixedly connected to both sides of the lead screw inside the housing. The screw seat is threadedly connected to the lead screw, and the screw seat is slidably connected to the guide rod.

[0014] Furthermore, a second cylinder is fixedly connected to both sides of the top of the base and inside the box, and a clamping plate is fixedly connected to the output end of the second cylinder.

[0015] Compared with the prior art, the beneficial effects of the present invention are: Firstly, in this invention, an annular sleeve is set on the outside of the laser engraving head, and an air collection pipe is arranged inside the annular sleeve, which is equipped with multiple sets of nozzles to form an air supply mechanism. An air compressor continuously supplies compressed air, so that the airflow is evenly distributed in the air collection pipe and then sprayed out directionally from the nozzles, forming an annular air curtain on the engraving point. This can directionally blow away the wood chips and dust generated during engraving, preventing impurities from adhering to the surface of the wooden workpiece and forming stains. At the same time, it continuously cools the engraving processing position, guides high-temperature sparks away from the workpiece, and reduces the possibility of sparks igniting wood chips. In conjunction with a circumferentially rotating disc, an infrared temperature measurement module rotates and scans around the engraving area to achieve continuous temperature measurement at multiple points. This makes up for the shortcomings of traditional fixed temperature measurement and data acquisition, and captures the temperature changes of the engraving point in real time, which is convenient for subsequent equipment temperature adjustment and inhibits the phenomenon of high-temperature carbonization and blackening of wood.

[0016] Secondly, in this invention, a flame retardant storage box is set on the outside of the annular sleeve. The flame retardant solution is transported to the collection pipe by a liquid supply pump and a delivery pipe. After being atomized by an atomizing nozzle, it is introduced into the gas collection pipe, so that the flame retardant droplets are mixed into the compressed air flow. When the flame sensor detects an open flame or spark hazard, a micro-liquid atomization is automatically completed. The flame retardant droplets are transported to the abnormally high temperature point with the help of an annular air curtain, so as to quickly achieve heat absorption and extinguishing and form a flame retardant isolation layer on the surface of the wood to prevent the wood from reigniting. At the same time, the counting mechanism completes the work cycle statistics of the rotating scanning detection, which makes it convenient for the staff to grasp the mechanical operation frequency of the dynamic temperature measuring mechanism of the equipment and the maintenance cycle of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure viewed from below in this invention; Figure 3 This is a schematic diagram of a partial connection between the gas delivery mechanism and the flame-retardant mechanism in this invention; Figure 4 This is a schematic diagram of the bottom structure of the partial connection between the gas delivery mechanism and the flame retardant mechanism in this invention; Figure 5 This is a schematic diagram of the structure on the lower side of the screw seat in this invention; Figure 6 This is a schematic diagram of the structure on the other side of the screw seat in this invention; Figure 7 In this invention Figure 5 A magnified structural diagram at point A; Figure 8 In this invention Figure 6 A magnified structural diagram at point B; Figure 9 This is a schematic diagram of the monitoring mechanism structure in this invention.

[0018] In the diagram: 1. Base; 2. Housing; 3. Screw seat; 4. First cylinder; 5. Assembly plate; 6. Hanging rod; 61. Fixing plate; 7. Laser engraving head; 8. Air supply mechanism; 801. Air collection pipe; 802. Nozzle; 803. Air inlet pipe; 804. Connecting pipe; 805. Air guide pipe; 806. Air compressor; 9. Ring sleeve; 10. Flame retardant mechanism; 101. Material collection pipe; 102. Material guide pipe; 103. Atomizing nozzle; 104. Feeding pipe; 105. Solenoid valve; 106. Liquid supply pump; 107. Conveying pipe; 108. Flame retardant storage box; 109. Block; 11. Monitoring machine Structure; 111, Inclined plate; 112, Infrared temperature measurement module; 113, Flame sensor; 12, Power mechanism; 121, First motor; 122, First driving gear; 123, First driven gear; 124, Rotary disk; 13, Counting mechanism; 131, Push block; 132, Transmission block; 133, Fixing frame; 134, Spring; 135, Transmission rod; 136, Touch counter; 14, Adjustment mechanism; 141, Second motor; 142, Second driving gear; 143, Second driven gear; 144, Lead screw; 145, Guide rod; 15, Second cylinder; 16, Clamping plate. 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 1-9 In this embodiment of the invention, a laser engraving machine for processing wooden handicrafts includes a base 1, a housing 2 fixedly connected to the top of the base 1, a screw seat 3 provided on one side of the interior of the housing 2, a first cylinder 4 fixedly connected to the bottom of the screw seat 3, an assembly plate 5 fixedly connected to the output end of the first cylinder 4, a hanging rod 6 fixedly connected to one side of the bottom of the assembly plate 5, a fixed plate 61 fixedly connected to the middle of the hanging rod 6, a laser engraving head 7 fixedly connected to the bottom of the hanging rod 6, an annular sleeve 9 fixedly connected to the outside of the laser engraving head 7 on the hanging rod 6, an air supply mechanism 8 provided on one side of the annular sleeve 9, a flame retardant mechanism 10 provided on one side of the annular sleeve 9 located at the air supply mechanism 8, a power mechanism 12 provided on the side of the assembly plate 5 away from the hanging rod 6, a counting mechanism 13 provided on one side of the power mechanism 12, a monitoring mechanism 11 provided on the other side of the power mechanism 12, and an adjustment mechanism 14 provided on one side of the housing 2.

[0021] Please see Figures 3-5 The air supply mechanism 8 includes an air collecting pipe 801, which is fixedly connected inside the annular sleeve 9. A nozzle 802 is fixedly connected to the bottom end of the air collecting pipe 801, and multiple nozzles 802 are provided. An air inlet pipe 803 is fixedly connected to the side of the air collecting pipe 801 away from the multiple nozzles 802. A connecting pipe 804 is fixedly connected to the side of the air inlet pipe 803 away from the air collecting pipe 801. An air compressor 806 is fixedly connected to the side of the mounting plate 5 away from the hanger 6. An air guide pipe 805 is fixedly connected to the air outlet end of the air compressor 806. One end of the air guide pipe 805 is fixedly connected to one end of the connecting pipe 804. By setting the air compressor 806 as the air supply power source, in conjunction with the air guide pipe 802... 05. The connecting pipe 804 delivers compressed air to the inside of the air collecting pipe 801. The air collecting pipe 801 cavity achieves airflow stabilization and pressure distribution, and then the air is directionally sprayed out through multiple sets of nozzles 802 at the bottom, so that the airflow is concentrated and converged at the wood carving processing position. Compared with the traditional single direct blowing method, this structure can form a ring-shaped air curtain around the laser spot. It can not only quickly blow away the wood chips and dust generated during the carving process from the surface of the workpiece, avoiding the blackening and pollution of the wooden craft surface caused by the dust adhesion, but also continuously convectively dissipate heat from the high temperature area of ​​carving, reduce the local temperature of the carving point, and at the same time guide the high temperature sparks generated by carving outward, preventing the sparks from accumulating on the wood surface and igniting the fine wood chips, thus reducing the risk of wood carbonization and fire from a physical perspective.

[0022] Please see Figure 3 , Figure 5 , Figure 6 , Figure 7The flame-retardant mechanism 10 includes a guide pipe 102, which is fixedly connected to the top end of the gas collecting pipe 801. Four guide pipes 102 are provided, and a collecting pipe 101 is fixedly connected to the common top end of the four guide pipes 102. Atomizing nozzles 103 are fixedly connected to both sides of the top end of the collecting pipe 101. A supply pipe 104 is fixedly connected to one side of two atomizing nozzles 103. A conveying pipe 107 is fixedly connected to the common side of the two supply pipes 104. A flame-retardant storage box 108 is fixedly connected to one end of the conveying pipe 107. The flame-retardant storage box 108 is fixedly connected to the outside of the annular sleeve 9. Through the annular sleeve 9... The outer side of the sleeve 9 integrates a flame retardant storage box 108. The flame retardant liquid inside the storage box is introduced into the collection pipe 101 through the conveying pipe 107, and then diverted into the gas collection pipe 801 by multiple sets of guide pipes 102. This allows the flame retardant liquid to be atomized and mixed into the compressed air flow. This arrangement integrates the flame retardant delivery pipeline inside the gas delivery mechanism 8, eliminating the need for an additional external spray structure. The structure is compact and does not occupy processing space. The pipeline diversion makes the distribution of flame retardant droplets more uniform, ensuring that the droplets can follow the annular air curtain to fully cover the high-temperature area of ​​the carving during subsequent fire extinguishing. This accurately cools and retards open flames and high-temperature sparks, preventing the smoldering and reignition of wooden workpieces.

[0023] Please see Figures 3-4 A block 109 is fixedly connected to the top of the collecting pipe 101 near the side of the conveying pipe 107, and the conveying pipe 107 is fixedly connected to the block 109. A liquid supply pump 106 is fixedly connected to the middle of the conveying pipe 107, and a solenoid valve 105 is fixedly connected to the side of the conveying pipe 107 near the liquid supply pump 106. By adding a liquid supply pump 106 to the middle section of the conveying pipe 107, the liquid supply pump 106 provides the conveying power for the flame retardant liquid. The pumping output pressure of the liquid supply pump 106 is greater than the positive pressure generated by compressed air in the collecting pipe 801. The liquid supply pump 106 realizes liquid supply and only starts high-pressure delivery of flame retardant when a fire is detected. It overcomes the air pressure resistance in the pipe to realize micro-dosage atomization, avoids excessive spraying of flame retardant causing the wooden handicrafts to become damp and have water stains, and ensures the appearance quality of the processed wooden handicrafts.

[0024] Please see Figures 5-6The power mechanism 12 includes a first motor 121, which is fixedly connected to the mounting plate 5 on one side of the first cylinder 4. A first driving gear 122 is fixedly connected to the output end of the first motor 121. A first driven gear 123 is meshed with one side of the first driving gear 122. A rotating disk 124 is fixedly connected to one side of the first driven gear 123. The rotating disk 124 is rotatably connected to the lower side of the fixed disk 61, and a conductive slip ring is coaxially sleeved and fixed between the rotating disk 124 and the fixed disk 61. The lifting rod... One side of the rod 6 passes through the rotating disk 124, and the monitoring mechanism 11 is installed on one side of the rotating disk 124. The first motor 121 drives the first driving gear 122 and the first driven gear 123 to mesh and transmit power, causing the rotating disk 124 to rotate around the vertical central axis of the rod 6. This allows the monitoring mechanism 11 mounted on the outside of the rotating disk 124 to rotate around the laser engraving head 7, expanding the temperature monitoring range and avoiding the disadvantages of single-angle temperature measurement being easily blocked by smoke and dust and the temperature measurement data being one-sided. This provides sufficient data support for the judgment of high temperature of wood and temperature control.

[0025] Please see Figure 6 and Figure 9 The monitoring mechanism 11 includes an inclined plate 111, which is fixedly connected to one side of a rotating disk 124. An infrared temperature measurement module 112 is fixedly connected to one side of the inclined plate 111, and a flame sensor 113 is fixedly connected to the side of the inclined plate 111 closest to the infrared temperature measurement module 112. The probes of both the infrared temperature measurement module 112 and the flame sensor 113 are tilted. By tilting and fixing the infrared temperature measurement module 112 and the flame sensor 113 with the inclined plate 111, the probes are always tilted and aligned with the center of the engraving spot. This, combined with the rotating disk 124, enables circumferential scanning, which can collect temperature changes at multiple points in the engraving area in real time, accurately capture heat accumulation, and determine the risk of wood carbonization. It can also continuously monitor whether sparks or open flames are generated at the engraving points, and can quickly provide feedback signals if a fire hazard occurs.

[0026] Please see Figure 8The counting mechanism 13 includes a push block 131, which is fixedly connected to one side of the top of the first drive gear 122. A fixed frame 133 is fixedly connected to one side of the bottom of the air compressor 806. A touch counter 136 is fixedly connected to one side of the fixed frame 133. A transmission block 132 is provided on one side of the fixed frame 133. A transmission rod 135 is fixedly connected to one end of the transmission block 132 near the touch counter 136. One side of the transmission rod 135 is in contact with the touch counter 136. When the power mechanism 12 is working, the push block 131 is driven to rotate synchronously by the first drive gear 122. The push block 131 periodically squeezes the transmission block 132, causing the transmission rod 135 to intermittently touch the touch counter 136 to complete the counting statistics. This allows the number of circumferential rotation scans of the monitoring mechanism 11 to be recorded, facilitating the staff to grasp the cumulative operating load of the rotation drive component and providing data reference for subsequent gear lubrication and probe harness maintenance.

[0027] Please see Figure 9 Springs 134 are fixedly connected to both sides of one end of the fixed frame 133. The common side of the two springs 134 is fixedly connected to the transmission block 132. One side of the push block 131 is in movable contact with one side of the transmission block 132. The contact surfaces of the transmission block 132 and the push block 131 are both arc-shaped structures. Through the intermittent contact between the push block 131 and the transmission block 132, the transmission block 132 is pressed and reset in conjunction with the springs 134 on both sides, ensuring that each rotation and extrusion can complete one count. This allows the mechanical counting structure to work cyclically, making it convenient for staff to count the number of processing abnormalities and optimize the engraving processing parameters later.

[0028] Please see Figures 1-2 The adjustment mechanism 14 includes a second motor 141, which is fixedly connected to one side of the housing 2. A second driving gear 142 is fixedly connected to the output end of the second motor 141. A second driven gear 143 is meshed with one side of the second driving gear 142. A lead screw 144 is fixedly connected to one side of the second driven gear 143. The lead screw 144 is rotatably connected to the housing 2 through bearings. Guide rods 145 are fixedly connected to both sides of the lead screw 144 inside the housing 2. The screw seat 3 is threadedly connected to the lead screw 144, and the screw seat 3 is slidably connected to the guide rods 145. The second motor 141 drives the second driving gear 142 and the second driven gear 143 to mesh, thereby driving the lead screw 144 to rotate. The screw 144 drives the screw seat 3 to move laterally through threaded transmission. With the help of the guide rods 145 on both sides, a smooth and limited sliding is achieved, thereby adjusting the lateral processing position of the laser engraving head 7 to adapt to the engraving processing needs of wooden handicrafts of different sizes.

[0029] Please see Figure 1The base 1 has two second cylinders 15 fixedly connected to the top of the base 1 and inside the box 2. The output end of the second cylinder 15 is fixedly connected to the clamping plate 16. The clamping plate 16 is moved towards each other by the two second cylinders 15 in a synchronous manner to clamp and fix the wooden workpiece inside the box 2, so as to avoid the workpiece from shifting or shaking during the carving process and to ensure the accuracy of the carved pattern.

[0030] The working principle of this invention is as follows: First, the worker places the wooden workpiece to be processed in the processing area inside the box 2. The second cylinders 15 on both sides of the base 1 push the clamping plates 16 to move towards each other, so as to firmly clamp and limit the wooden workpiece, avoid the workpiece from shifting and shaking during the carving process, and ensure the forming accuracy of the carved pattern. Before processing, the second motor 141 in the adjustment mechanism 14 can drive the gear to mesh and drive the lead screw 144 to rotate, so that the screw seat 3 can slide smoothly laterally along the guide rod 145, thereby adjusting the lateral processing position of the laser engraving head 7 to adapt to the processing needs of wooden handicrafts of different specifications and sizes. When the equipment is in the formal engraving operation, the laser engraving head 7 moves down to complete the etching process. At the same time, the air compressor 806 continues to work. Compressed air is sent into the air collection pipe 801 through the air guide pipe 805 and the connecting pipe 804. After the air collection pipe 801 stabilizes and divides the pressure, it is sprayed out from multiple sets of nozzles 802 at the bottom to form an annular air curtain around the engraving spot. This air curtain blows away and separates the wood chips and dust generated during the engraving, preventing the dust from adhering to the wood surface and forming black stains. At the same time, it continuously cools the engraving point and disperses the high-temperature sparks, reducing the possibility of sparks igniting the wood chips. During the engraving process, the first motor 121 continuously drives the gear meshing transmission, which drives the rotating disk 124 to make a circular motion around the laser engraving head 7. This allows the infrared temperature measurement module 112 and the flame sensor 113 installed on the inclined plate 111 to continuously scan the engraving area in a circumferential direction. The infrared temperature measurement module 112 and the flame sensor 113 collect the engraving temperature and fire status from multiple angles in real time. This makes up for the shortcomings of the traditional fixed monitoring method, such as the limited detection range and the susceptibility to smoke and dust. It provides accurate data support for equipment temperature control and fire judgment. While the monitoring mechanism 11 rotates, the push block 131 at the top of the first drive gear 122 periodically squeezes the transmission block 132, which, in conjunction with the spring 134, achieves a reset and rebound, causing the transmission rod 135 to intermittently touch the counter 136 to complete mechanical counting. Workers can use the counting data to statistically analyze the frequency of temperature measurement and the number of high-temperature anomaly triggers, facilitating later optimization of engraving processing parameters. When the flame sensor 113 detects an open flame or high-temperature spark at the engraving point, the liquid supply pump 106 in the middle of the feed pipe 107 instantly starts, filling the flame retardant storage box. The flame-retardant liquid inside 108 is quantitatively extracted and diverted through conveying pipe 107, feeding pipe 104, collecting pipe 101, and guiding pipe 102 before being sent into the gas collecting pipe 801. Then, it is atomized through atomizing nozzle 103, so that the flame-retardant droplets are mixed into the annular airflow and follow the air curtain to accurately act on the fire location, achieving rapid cooling and fire extinguishing. At the same time, a thin flame-retardant isolation layer is formed on the surface of the wood, effectively preventing the wood from smoldering and reigniting. In addition, the equipment adopts a micro-dosage method, which will not cause the wood to get damp or leave water stains, thus preserving the appearance quality of the wooden handicrafts to the greatest extent. In summary, this technology effectively solves the technical defects of traditional wood laser engraving machines, such as wood carbonization and blackening, difficulty in dispersing sparks, and a high risk of fire. It is suitable for safe and high-quality engraving of various types of wooden handicrafts.

Claims

1. A laser engraving machine for processing wooden handicrafts, characterized in that: Includes a base (1), the top of which is fixedly connected to a housing (2), a screw seat (3) is provided on one side of the inside of the housing (2), a first cylinder (4) is fixedly connected to the bottom of the screw seat (3), an assembly plate (5) is fixedly connected to the output end of the first cylinder (4), a hanging rod (6) is fixedly connected to one side of the bottom end of the assembly plate (5), a fixed plate (61) is fixedly connected to the middle of the hanging rod (6), and a laser engraving head (7) is fixedly connected to the bottom end of the hanging rod (6). An annular sleeve (9) is fixedly connected to the outside of the laser engraving head (7). An air supply mechanism (8) is provided on one side of the annular sleeve (9). A flame-retardant mechanism (10) is provided on one side of the annular sleeve (9) located at the air supply mechanism (8). A power mechanism (12) is provided on the side of the assembly plate (5) away from the hanging rod (6). A counting mechanism (13) is provided on one side of the power mechanism (12). A monitoring mechanism (11) is provided on the other side of the power mechanism (12). An adjustment mechanism (14) is provided on one side of the housing (2). The air delivery mechanism (8) includes an air collection pipe (801), which is fixedly connected inside the annular sleeve (9). A nozzle (802) is fixedly connected to the bottom end of the air collection pipe (801), and multiple nozzles (802) are provided. The flame retardant mechanism (10) includes a guide tube (102), which is fixedly connected to the top end of the gas collecting tube (801), and there are four of them. The common top end of the four guide tubes (102) is fixedly connected to the collecting tube (101), and both sides of the top end of the collecting tube (101) are fixedly connected to atomizing nozzles (103). The power mechanism (12) includes a first motor (121), which is fixedly connected to the assembly plate (5) on one side of the first cylinder (4). The output end of the first motor (121) is fixedly connected to a first drive gear (122), and a first driven gear (123) is meshed on one side of the first drive gear (122).

2. The laser engraving machine for processing wooden handicrafts according to claim 1, characterized in that: An air inlet pipe (803) is fixedly connected to the side of the air collection pipe (801) away from the plurality of nozzles (802). A connecting pipe (804) is fixedly connected to the side of the air inlet pipe (803) away from the air collection pipe (801). An air compressor (806) is fixedly connected to the side of the assembly plate (5) away from the hanger (6). An air guide pipe (805) is fixedly connected to the air outlet end of the air compressor (806). One end of the air guide pipe (805) is fixedly connected to one end of the connecting pipe (804).

3. The laser engraving machine for processing wooden handicrafts according to claim 1, characterized in that: Each of the two atomizing nozzles (103) is fixedly connected to a feeding pipe (104) on one side. The two feeding pipes (104) are fixedly connected to a conveying pipe (107) on the common side. One end of the conveying pipe (107) is fixedly connected to a flame retardant storage box (108). The flame retardant storage box (108) is fixedly connected to the outside of the annular sleeve (9).

4. The laser engraving machine for processing wooden handicrafts according to claim 3, characterized in that: A block (109) is fixedly connected to the top of the collecting pipe (101) near the side of the conveying pipe (107), and the conveying pipe (107) is fixedly connected to the block (109). A liquid supply pump (106) is fixedly connected to the middle of the conveying pipe (107), and a solenoid valve (105) is fixedly connected to the side of the conveying pipe (107) near the liquid supply pump (106).

5. A laser engraving machine for processing wooden handicrafts according to claim 2, characterized in that: A rotating disk (124) is fixedly connected to one side of the first driven gear (123). The rotating disk (124) is rotatably connected to the lower side of the fixed disk (61). A conductive slip ring is coaxially sleeved and fixed between the rotating disk (124) and the fixed disk (61). One side of the rod (6) passes through the rotating disk (124). The monitoring mechanism (11) is installed on one side of the rotating disk (124).

6. A laser engraving machine for processing wooden handicrafts according to claim 5, characterized in that: The monitoring mechanism (11) includes an inclined plate (111), which is fixedly connected to one side of the rotating disk (124). An infrared temperature measurement module (112) is fixedly connected to one side of the inclined plate (111), and a flame sensor (113) is fixedly connected to the side of the inclined plate (111) near the infrared temperature measurement module (112). The probes of the infrared temperature measurement module (112) and the flame sensor (113) are both tilted.

7. A laser engraving machine for processing wooden handicrafts according to claim 2, characterized in that: The counting mechanism (13) includes a push block (131), which is fixedly connected to one side of the top of the first drive gear (122). A fixed frame (133) is fixedly connected to one side of the bottom of the air compressor (806). A touch counter (136) is fixedly connected to one side of the fixed frame (133). A transmission block (132) is provided on one side of the fixed frame (133). A transmission rod (135) is fixedly connected to one end of the transmission block (132) near the touch counter (136). One side of the transmission rod (135) is in active contact with the touch counter (136).

8. A laser engraving machine for processing wooden handicrafts according to claim 7, characterized in that: Springs (134) are fixedly connected to both sides of one end of the fixed frame (133). The common side of the two springs (134) is fixedly connected to the transmission block (132). One side of the push block (131) is in movable contact with one side of the transmission block (132). The contact surfaces of the transmission block (132) and the push block (131) are both arc-shaped structures.

9. A laser engraving machine for processing wooden handicrafts according to claim 1, characterized in that: The adjustment mechanism (14) includes a second motor (141), which is fixedly connected to one side of the housing (2). The output end of the second motor (141) is fixedly connected to a second driving gear (142). A second driven gear (143) is meshed with one side of the second driving gear (142). A lead screw (144) is fixedly connected to one side of the second driven gear (143). The lead screw (144) is rotatably connected to the housing (2) through a bearing. Guide rods (145) are fixedly connected to both sides of the lead screw (144) inside the housing (2). The screw seat (3) is threadedly connected to the lead screw (144), and the screw seat (3) is slidably connected to the guide rod (145).

10. A laser engraving machine for processing wooden handicrafts according to claim 1, characterized in that: The base (1) has a second cylinder (15) fixedly connected to both sides of its top end and inside the box (2), and the output end of the second cylinder (15) is fixedly connected to a clamping plate (16).

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