Marine organism laser marking device

Abstract

The invention discloses a marine organism laser marking device, relates to the technical field of laser systems, and aims to solve the problems that the allowable error of burning laser defocusing is relatively low, mark etching is distorted, and the form of a mark working surface is single. By arranging the laser generator, the burning laser beam, the light path assembly, the focusing mechanism and the marking guide channel, the laser etching energy level jumping amplitude can be reduced, and the out-of-focus allowable error of a burning marking surface is increased; the degree of damage to marine organisms caused by too high laser energy level is reduced, and the etching definition and durability of marine organism laser marks are improved. By arranging the first push plate, the push plate isolation layer, the first telescopic rod and the marking guide channel, the laser burning laser excitation energy level range is reduced, the diversity of light guide scanning and etching working faces is improved, the working distance regulation and control accuracy is better, the size plan of the marking range is richer, and the manufacturing cost is lower.

Description

Technical Field

[0001] The invention relates to the technical field of laser systems, and in particular to a marine organism laser marking device. Background Art

[0002] Marked release is a method for studying biological resources and evaluating the effects of stocking and reproduction. It is often used to study biological habits, biological distribution characteristics, biological growth and other fields. The organisms marked by the mark are generally applicable, and are often used to mark fish, shrimp, shellfish, birds and other organisms. The underwater marking and release of marine organisms, especially fish, is an important process of marking the captured fish and releasing them back to the original waters. When they are re-captured, the migration, distribution, growth and resource conditions of the fish can be studied.

[0003] In the prior art, laser engraving technology is mostly used for etching marks on inorganic materials such as metals, plastics, and wood. Laser equipment used for biological marking is in a state of development, especially in the laser marking system for marine organisms in water, which faces many difficulties. Existing fish biological marking equipment uses metal wire injection and other means as the main technology, but this marking method is very harmful to fish organisms, and it is easy to cause the marked organisms to be injured, sick, and die, resulting in the failure of the biological investigation and research process of biological marking exile. Common laser marking equipment uses a laser system to excite the laser beam to scan the marker with a laser beam, and the laser scanning shows the etching lines to obtain the marking mark, but the common laser beam optical instruments or optical systems have high requirements for the precision of the marking mechanical equipment, which is difficult to meet the needs of widespread and simple laser marking. In the equipment used for biological laser marking, the laser system can usually only semi-automatically scan and mark the carapace of aquatic organisms, and most of them require manual participation to fix the posture of the marked organism. The marking efficiency is poor and it is difficult to adapt to the needs of underwater real-time marking. In addition, the practicality of laser marking depends on the adjustment of the focusing position of the laser equipment's focusing system. When the distance between the focused spot position and the surface of the marking layer is greatly different, it may be difficult to accurately mark.

[0004] For example, the U.S. invention patent US20110012986A1 discloses a printing device and a printing method using the printing device. The invention patent uses a laser system to focus and adjust the laser system to etch and print the markable area of ​​the fish scale, and uses machine vision acquired by a camera to assist in positioning the fish body posture, so as to laser burn marks in the suitable area of ​​the fish scale. The marks burned by this technical solution rely on the positioning of the focusing scanning system of the laser system and the posture positioning of the machine vision. Without human intervention, it may be difficult to accurately locate the burning area of ​​the fish scale layer. In addition, the scanning adjustment angle of the focusing scanning system of the laser equipment may limit the length, width and other specifications of the burned mark.

[0005] For example, Japanese invention patent JP07308140A discloses a method and device for aligning the direction and posture of a live fish. This invention patent guides the water tank of the travel through an inclined plate, and at the same time drives the water flow to drive the fry through a one-way guide channel, thereby adjusting the posture of the fish body; in this technical solution, the posture control of the fish body depends on the guidance of the water tank guide channel and the water flow. When the fish swims in the guide channel, blockage and stagnation may occur. At the same time, the fish can only be semi-forced to guide one-way through the guide channel, and it may be difficult to control the posture of the fish body perpendicular to the channel guide direction. Summary of the invention

[0006] The object of the present invention is to provide a marine organism laser marking device to overcome the shortcomings of the prior art, such as low allowable error of laser defocusing, mark etching distortion, and single mark working surface form.

[0007] In order to solve the above technical problems, the present invention specifically provides the following technical solutions: A marine life laser marking device comprises a laser generator and a focusing mechanism, wherein the laser generator provides a writing laser beam, an optical path component is arranged between the laser generator and the focusing mechanism, the optical path component comprises an optical path mechanism and a scanning mechanism, the optical path mechanism guides the propagation of the writing laser beam, and the optical path component and the focusing mechanism adjust the focusing scanning position of the writing laser beam; A marking guide cover is provided in the laser output direction of the focusing mechanism, a marking guide channel is provided in the marking guide cover, the output focus of the marking laser beam is located in the marking guide channel, and the marking guide channel guides the directional movement of the marking organism.

[0008] Preferably, a flow receiving groove is fixedly connected to the marking guide cover, a flow receiving chamber is arranged in the flow receiving groove, an inclined connecting plate is arranged in the bottom wall of the flow receiving chamber, the inclined connecting plate guides the marking organisms to enter the marking guide channel, a water flow penetration net is arranged in the side wall of the flow receiving chamber, and a flow water seat is arranged on the flow receiving groove; By setting up a laser generator, a burning laser beam, an optical path component, a focusing mechanism and a marking guide channel, the amplitude of laser etching energy level jumps can be reduced, the energy consumption of the marking laser can be reduced, thereby increasing the allowable defocus error of the burning mark surface and reducing the precision requirements of the laser mechanical system; it can avoid repeated marking, improve the degree of automation of marine organism laser marking, and improve the duration and efficiency of underwater laser marking; reduce the possibility of large laser energy level mutations, reduce the degree of damage to marine organisms caused by excessive laser energy levels, and improve the clarity and durability of marine organism laser marking etching.

[0009] Preferably, a projection docking channel is provided in the side wall of the marking guide channel, and the projection docking channel accommodates the projection scanning of the marking laser beam.

[0010] Preferably, the output direction of the marking laser beam is roughly perpendicular to the guide path of the marking guide channel. A first telescopic rod is provided in the side wall of the marking guide channel, and a first push plate is provided at the other end of the first telescopic rod. The first push plate is located in the marking guide channel, and the first push plate compresses the guide path width of the marking guide channel in the projection direction of the marking laser beam.

[0011] Preferably, the other end of the first push plate is fixedly connected with a push plate isolation layer, and the push plate isolation layer is made of elastic material; By setting the first push plate, the push plate isolation layer, the first telescopic rod and the marking guide channel, the clarity of the laser marking of marine organisms is improved, the required laser excitation energy level range of laser burning is reduced, the diversity of light guide scanning and etching working surfaces is improved, the adjustment range of the marking etching focal length is smaller, the working distance control accuracy is better, the size planning of the marking range is richer, the burning and marking is more refined, the instantaneous and continuous laser marking dynamic performance is better, the production cost is more economical, and it can adapt to a variety of laser generation systems or control systems; It improves the accuracy and etching quality of laser marking, increases the retention time of marking marks, further improves the readability and accuracy of laser marking, and improves the re-inspection efficiency and re-inspection reading efficiency of marine life laser marking surveys.

[0012] Preferably, a second telescopic rod is provided in the side wall of the marking guide channel, and the other end of the second telescopic rod is fixedly connected to a second push plate, the second push plate is located in the marking guide channel, and the compression direction of the second push plate is perpendicular to the compression direction of the first push plate.

[0013] Preferably, two first telescopic rods are provided in the side wall of the marking guide channel, wherein the position of one of the first telescopic rods corresponds to the projection docking channel, a sliding groove is provided on the side of the first push plate, one end of the first telescopic rod facing the first push plate is fixedly connected to the second pendulum seat, the other end of the second pendulum seat is hinged to the first pendulum seat, the first pendulum seat is slidably connected in the sliding groove, and the sliding guide of the sliding groove is in the same direction as the pushing direction of the second push plate; By arranging the first telescopic rod, the second deflection seat, the first deflection seat and the first push plate, the degree of control of the posture of marine organism laser marking is improved, the flexibility of the posture control of the fish body is improved, and the whole process distance between the laser focused burning spot and the etched surface is reduced; the convenience of automatic control expansion of the posture control of marine organism laser marking is improved, and the structural stability of the laser marking equipment is improved.

[0014] Preferably, an anti-recoil plate is hinged inside the side wall of the marking guide channel, an anti-recoil spring is fixedly connected between the anti-recoil plate and the side wall of the marking guide channel, and the anti-recoil plate can unidirectionally close the guide path channel of the marking guide channel.

[0015] Preferably, the anti-recoil plate is located at the front end of the flow of the projected docking channel in the guiding direction of the marking guide channel, and one end of the anti-recoil plate facing the marking guide channel is made of a water-permeable net; By arranging an anti-recoil plate, a second push plate, a second telescopic rod, a second drive unit and an anti-recoil spring, the selection range of the biological etching area is increased, the use range and convenience of the laser marking device are improved, the degree of guidance continuity between the laser-etched organism and the prepared organism can be slowed down, the instantaneous blocking pressure of the laser marking is reduced, and the stability and working efficiency of the laser marking system are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of a marine organism laser marking device of the present invention; Figure 2 yes Figure 1 A local enlarged schematic diagram of the middle A; Figure 3 is a schematic diagram of the internal structure of the flow containing tank; Figure 4 yes Figure 1 A partial enlarged schematic diagram of point B in the middle; Figure 5 yes Figure 1 A partial enlarged schematic diagram of point D in the middle; Figure 6 is a schematic diagram of the positional relationship between the first push plate and the second push plate; Figure 7 yes Figure 6 A partial enlarged schematic diagram of point F in the middle.

[0018] Figure numbers: laser assembly box 10; assembly chamber 11; burning drive assembly 12; laser generator 13; optical path mechanism 14; scanning mechanism 15; burning laser beam 16; focusing mechanism 17; projection member 18; marking guide cover 20; marking guide channel 21; first push plate 22; push plate isolation layer 23; anti-retreat plate 24; anti-retreat installation cavity 25; anti-retreat spring 26; projection docking channel 27; circulation accommodating groove 30; circulation accommodating chamber 31; water flow net 32; inclined connecting plate 33; circulation water seat 34; detachable cover 35; sliding groove 40; first deflection seat 41; second deflection seat 42; first telescopic rod 43; first driving unit 44; second push plate 52; second telescopic rod 53; second driving unit 55; projection installation groove 57; flushing head 58; underwater camera assembly 59. DETAILED DESCRIPTION

[0019] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0020] The specific embodiments of the present invention described herein are only used to explain the purpose of the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, technicians can conceive of any possible variations based on the present invention, which should be regarded as belonging to the scope of the present invention. It should be noted that when an element is referred to as "arranged on" another element, it can be directly on another element or there can also be a central element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there may be a central element at the same time. The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation method.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] Embodiment 1 See attached Figure 1 To Attachment Figure 4As shown, the present invention provides a marine life laser marking device, including a laser generator 13 and a focusing mechanism 17. The laser generator 13 provides a recording laser beam 16. An optical path component is provided between the laser generator 13 and the focusing mechanism 17. The optical path component has an optical path mechanism 14 and a scanning mechanism 15. The optical path mechanism 14 guides and propagates the recording laser beam 16. The optical path component, the laser generator 13 and the focusing mechanism 17 are all controlled and driven by a recording drive component 12 arranged on the laser generator 13, thereby forming a laser beam expansion, light guiding, focusing and scanning mechanism. The system of etching scanning is coordinated with the mechanical devices such as focusing and reflection to output the marking laser beam for etching marks. The burning drive component 12 also includes a component for powering the laser generator 13; the scanning mechanism 15 and the focusing mechanism 17 cooperate to adjust the focusing position of the burning laser beam 16, so as to perform coordinate scanning in a plane perpendicular to the projection direction of the burning laser beam 16, so that the light spot of the burning laser beam 16 after being focused by the focusing mechanism 17 moves along a predetermined track. When the light spot is located at the shell marking layer of the marine organism, the light spot is marked at the etching location according to the control movement; A marking guide cover 20 is provided in the focused projection output direction of the marking laser beam 16, and a marking guide channel 21 is provided in the marking guide cover 20. The focused marking spot of the marking laser beam 16 is transmitted in the marking guide channel 21, and the marking guide channel 21 guides the directional movement of the organism to be marked. The focused marking spot of the marking laser beam 16 divides the guide path of the marking guide channel 21 into a front end and a rear end. The front end of the guide path of the marking guide channel 21 accommodates the fish and other marine organisms to be laser marked, and the rear end of the guide path of the marking guide channel 21 releases the marked fish and other marine organisms. The marking guide cover 20 is fixedly connected with a laser assembly box 10, and an assembly chamber 11 is provided in the laser assembly box 10. A laser generator 13, an optical path mechanism 14, a scanning mechanism 15 and a focusing mechanism 17 are all arranged in the assembly chamber 11. A projection installation groove 57 is provided in the side wall of the assembly chamber 11, and a projection member 18 is fixedly connected in the projection installation groove 57. The projection member 18 projects the laser beam output by the recording laser beam 16, and the projection member 18 can seal the projection installation groove 57. The marking guide cover 20 is located at one end of the direction of the projecting focus spot of the marking laser beam 16. The guide path of the marking guide channel 21 is substantially perpendicular to the focus projection direction of the marking laser beam 16. The guide path length of the marking guide channel 21 is much larger than the guide width between the side walls for accommodating the marked organism. The side wall spacing width of the marking guide channel 21 in the projection direction of the marking laser beam 16 is adapted to the width of the organism to be marked, so that the fish waiting for the marked organism cannot turn around on the guide path of the marking guide channel 21. One end of the marking guide cover 20 is fixedly connected to a circulation accommodating groove 30, a circulation accommodating chamber 31 is arranged in the circulation accommodating groove 30, the circulation accommodating chamber 31 is communicated with the marking guide channel 21, an inclined connecting plate 33 is arranged in the side wall of the circulation accommodating chamber 31, a marked organism is arranged in the circulation accommodating chamber 31, and the inclined connecting plate 33 guides the marked organism to be marked from the circulation accommodating chamber 31 into the marking guide channel 21, so that the marked organism in the circulation accommodating chamber 31 follows the water flow guiding direction and enters the marking guide channel 21 in a forward swimming posture; a water flow permeable net 32 ​​is arranged in the side wall of the circulation accommodating chamber 31, and a circulation water seat 33 is arranged on the circulation accommodating groove 30. 4. The circulating water seat 34 guides the water flow in the circulating accommodation chamber 31 into the marking guide channel 21 through the water flow permeable net 32. The assembly chamber 11 is provided with a burning drive component 12, which provides power and auxiliary control for the laser generator 13 and the circulating water seat 34. The top side wall of the circulating accommodation chamber 31 is provided with a detachable cover 35, which can be arranged and opened and closed according to the use needs; the burning drive component 12 drives the circulating water seat 34 to start, driving the water flow in the circulating accommodation chamber 31 to flow, so that the organisms to be marked in the circulating accommodation chamber 31 follow the water flow into the front end of the guide path of the marking guide channel 21; After the laser generator 13 excites the laser beam, the optical path component guides and adjusts the laser path. After being focused by the focusing mechanism 17, a laser beam focus spot is formed in the marking guide channel 21. When the marine organisms such as fish waiting to be marked swim from the front end of the marking guide channel 21 to the rear end of the marking guide channel 21, the laser focus spot burns and etches the marking scanning track driven and controlled by the optical path component on the carapace layer of the marine organisms such as fish, thereby forming a laser marking mark; By setting the laser generator 13, the laser beam 16, the optical path component, the focusing mechanism 17 and the marking guide channel 21, the marine organisms to be laser marked are restricted to pass through the marking guide channel 21 in one direction, so that the marked surface of the marine organism's crustacean can be kept within the scanning area of ​​the laser focus projected light spot in the marking guide channel 21, and the energy level amplitude required for laser focused etching can be controlled within a suitable range, so as to avoid the distance between the marked surface and the focused etching light spot in the projection direction being too large, and the laser etching energy level jump amplitude can be reduced, and the marking laser energy consumption can be reduced, thereby increasing the defocus allowable error of the marking surface and reducing the precision requirements of the laser mechanical system; By guiding the marine life to pass through the marking guide channel 21 in one direction, the marine life such as fish can be marked one by one, and at the same time, the shell marking layer of the marine life waiting for marking of the fish is limited to the side close to the focused light spot in the marking guide channel 21, and the marking layer is made to pass through the etching marking area in one direction, which can avoid repeated marking, improve the automation degree of marine life laser marking, reduce the projection range of underwater laser marking focus, reduce the water body transmission thickness, thereby reducing the laser energy level dissipation, reduce the projection distance of the laser beam focus working surface, reduce the difficulty of the marking layer and the focus working surface falling into the defocus allowable error, reduce the marking scanning action amplitude of the laser system light guide and projection focus, improve the laser system laser beam output quality, reduce the possibility of laser marking distortion, and improve the duration and use efficiency of underwater laser marking; at the same time, reduce the spacing amplitude between the marine life marking cortex and the laser focused light spot on the projection path, reduce the possibility of large laser energy level mutation, reduce the degree of damage to marine life caused by excessive laser energy level, improve the spacing stability between the marking surface and the focused light spot, and improve the clarity and durability of marine life laser marking etching; In addition, by providing a circulating water seat 34, a water flow permeable net 32 ​​and a circulating containing chamber 31, the head of the laser-marked marine organism can be guided to follow into the marking guide channel 21, maintain the guiding direction of the marine organism, adapt to continuous underwater laser marking, improve the automation level of underwater laser marking of marine organisms, reduce the intensity of manual operation, improve the efficiency of marine organism laser marking exile investigation work, reduce the time of marine organism laser marking out of water, and further reduce the mortality rate of laser-marked marine organisms.

[0023] See attached Figure 4 To Attachment Figure 7As shown, a projection docking channel 27 is provided in the side wall of the marking guide channel 21, and the projection docking channel 27 accommodates the focused projection of the marking laser beam 16; the focused projection direction of the marking laser beam 16 in the marking guide channel 21 is roughly perpendicular to the guide path of the marking guide channel 21, and the laser beam focus is located in the focused projection path direction of the marking laser beam 16. The focused spot of the marking laser beam 16 can move in the projection light path direction of the marking guide channel 21 according to the scanning control of the optical path component. A first telescopic rod 43 is provided in the side wall of the marking guide channel 21, and a first driving part 44 is fixedly connected to the marking guide cover 20. The first driving part 44 is dynamically connected to the first telescopic rod 43, and a first push plate 22 is provided at the other end of the first telescopic rod 43. A push plate 22 is located in the marking guide channel 21. The first push plate 22 compresses the guide path width of the marking guide channel 21 in the laser projection direction. The first push plate 22 pushes the organism to be marked in the marking guide channel 21 to be close to the projection docking channel 27 in the side wall of the marking guide channel 21. The first push plate 22 fixes the marking posture of the marked organism in the side wall of the marking guide channel 21. The other end of the first push plate 22 is fixedly connected to a push plate isolation layer 23. The push plate isolation layer 23 is made of elastic compressible material. The push plate isolation layer 23 protects the marked organism from local concentrated pressure thrust. The laser assembly box 10 is provided with an underwater camera assembly 59, and the position of the underwater camera assembly 59 corresponds to the projection docking channel 27. By arranging an underwater camera assembly 59 in the side wall of the marking guide channel 21, the machine vision-assisted detection of the fish body posture can be expanded. The burning drive assembly 12 drives the action of the first drive unit 44 and the second drive unit 55. The first drive unit 44 drives the first telescopic rod 43 to extend and retract, thereby driving the first push plate 22 and the push plate isolation layer 23 to compress the vertical guide width space of the guide path of the marking guide channel 21, so that the laser-marked organism is pressed against the side wall of the marking guide channel 21 close to the side of the focusing spot of the burning laser beam 16, thereby fixing the laser etching marking posture of the marine organism. Under the adjustment and scanning action of the optical path assembly in the assembly cavity 11, the laser projects the focusing spot through the projection docking channel 27 to etch the carapace layer of the marine organism in the marking guide channel 21, so that according to the coordinated action of the optical path mechanism 14 and the scanning mechanism 15 in the optical path assembly, the laser focusing spot moves in the carapace layer coordinate to form an etching track, thereby completing the laser marking. By providing the first push plate 22, the push plate isolation layer 23, the first telescopic rod 43 and the marking guide channel 21, the marking posture of the marine organism can be fixed, and the instantaneous movement of the laser printed mark following the movement of the marine organism can be avoided, the clarity of the laser marking of the marine organism is further improved, the required laser excitation energy level range of the laser burning is further reduced, the diversity of the light guide scanning and etching working surfaces is improved, the focus adjustment requirement for marking etching is smaller, the working distance regulation accuracy is better, the size planning of the marking range is richer, the burning and marking is more refined, the instantaneous and continuous laser marking dynamic performance is better, the production cost is more economical, and it can adapt to a variety of laser generation systems or regulation systems, and the use efficiency of the laser excitation system is improved; at the same time, it can avoid the movement of the shell layer marking surface relative to the laser focusing etching working surface, improve the accuracy of the marking laser burning and the etching quality, improve the retention time of the marking mark, further improve the readability and accuracy of the laser marking, and improve the re-inspection efficiency and re-inspection reading efficiency of the marine organism laser marking survey.

[0024] See attached Figure 1 , Attachment Figure 2 , Attachment Figure 4 To Attachment Figure 7 As shown, a second telescopic rod 53 is provided in the side wall of the marking guide channel 21, and the other end of the second telescopic rod 53 is fixedly connected to a second push plate 52, and the second push plate 52 is located in the marking guide channel 21. The second telescopic rod 53 drives the second push plate 52 to compress the guide path width of the marking guide channel 21, and the compression direction of the second push plate 52 is perpendicular to the compression direction of the first push plate 22. A second driving part 55 is fixedly connected to the marking guide cover 20, and the second driving part 55 is dynamically connected to the second telescopic rod 53; Two first telescopic rods 43 are provided in the side wall of the marking guide channel 21, wherein the position of one of the first telescopic rods 43 on the guide path of the marking guide channel 21 corresponds to the projection docking channel 27, a sliding groove 40 is provided on the side of the first push plate 22, a second deflection seat 42 is fixedly connected to one end of the first telescopic rod 43 facing the first push plate 22, a first deflection seat 41 is hinged to the other end of the second deflection seat 42, the first deflection seat 41 is slidably connected in the sliding groove 40, and the sliding guide of the sliding groove 40 to the first deflection seat 41 is the same as the pushing direction of the second push plate 52; By setting a first telescopic rod 43, a second deflection seat 42, a first deflection seat 41 and a first push plate 22, the position of one of the first telescopic rods 43 corresponds to the laser projection position at the projection docking channel 27, and the first push plate 22 drives the first deflection seat 41 to deflect relative to the second deflection seat 42 at the laser projection recording position of the projection docking channel 27, and the first telescopic rod 43 at another position drives the first push plate 22 and the push plate isolation layer 23 to deflect relative to the second deflection seat 42 at the projection position, thereby driving the first push plate 22 and the push plate isolation layer 23 to clamp against the marking guide. The fish and other marine life on the side wall of the guide channel 21 adjust their posture, so that the laser projection position at the projection docking channel 27 in the marking guide channel 21 is taken as the midpoint of the deflection, and the front and rear ends of the guide path of the marking guide channel 21 are taken as the deflection adjustment directions, so as to realize the posture adjustment of the fish body in a local range, so that the fish body deflects the laser-marked carapace in the length direction of the guide path of the marking guide channel 21, and when the distance of the focused light spot on the projection path at the projection docking channel 27 is stable, the distance between the marked surface of the carapace layer and the focused engraving light spot is locally adjusted; At the etching position where the docking channel 27 is projected in the marking guide channel 21, the marking positioning posture of the fish body can be adjusted according to the first telescopic rod 43 and the first push plate 22, and the relative position of the shell layer marking surface and the etching working surface can be adjusted to form various forms of marking areas, thereby improving the diversity of the marking area forms; the degree of control of the laser marking posture of marine organisms is improved, the flexibility of the fish body posture control is improved, the whole process distance between the laser focused burning spot and the etching surface is reduced, and the clarity and accuracy of the laser marking are further improved; the degree of burns suffered by marine organisms during the laser marking process is further reduced, the probability of the marking laser burning position shifting to the non-etching area is reduced, the controllability of the laser marking position of marine organisms is improved, the convenience of automatic control expansion of the laser marking posture control of marine organisms is improved, and the possibility of unmanned networked automatic control of underwater laser marking of marine organisms is improved; the laser marking position can be adjusted by local action in the marking guide channel 21 while maintaining the stability of the guiding function of the marking guide channel 21, thereby improving the structural stability of the laser marking equipment and the reliability and stability of the underwater laser marking work; In addition, by arranging a second push plate 52, a second telescopic rod 53 and a second driving part 55, the surface of the fish body can be adjusted to dock within the etching range of the projection docking channel 27 in the direction perpendicular to the pushing and compression of the first push plate 22, which can further increase the control and adjustment direction of the fish body posture, and can further improve the flexibility of laser marking of marine life posture adjustment; at the same time, it can adapt to the adjustment of the allowable volume of marine life guided through the marking guide channel 21, thereby increasing the selection range of the biological etching area, and can adapt to laser marking of various types of marine life, thereby increasing the use range and convenience of the laser marking device.

[0025] See attached Figure 1 and attached Figure 5 As shown, an anti-recoil plate 24 is hinged in the side wall of the marking guide channel 21, and an anti-recoil spring 26 is fixedly connected between the anti-recoil plate 24 and the side wall of the marking guide channel 21. The anti-recoil plate 24 can unidirectionally close the guide path channel of the marking guide channel 21. Two groups of anti-recoil installation cavities 25 are arranged opposite to each other in the side wall of the marking guide channel 21. The anti-recoil plate 24 is hinged in the anti-recoil installation cavity 25, and an anti-recoil spring 26 is fixedly connected between the side wall of the anti-recoil installation cavity 25 and the anti-recoil plate 24. The anti-recoil spring 26 makes the opening guiding direction of the two groups of opposite anti-recoil plates 24 be the same as the guide path of the marking guide channel 21. The two groups of opposite anti-recoil plates 24 cooperate with each other to prevent the organism to be marked from retreating on the guide path of the marking guide channel 21. One end of the anti-recoil plate 24 facing the marking guide channel 21 is made of a permeable net. By setting the anti-recoil plate 24 and the anti-recoil spring 26, the guide passage of the marking guide channel 21 can be opened and closed in one direction. In addition, the water-permeable anti-recoil plate 24 can reduce the influence of the water flow resistance in the guide passage of the marking guide channel 21, can adapt to the staged opening and closing of the guide channel, can slow down the degree of guide continuity between the laser etched organism and the prepared organism, reduce the instantaneous blocking pressure of the laser marking, reduce the probability of continuous laser marking guide blockage, and improve the stability and working efficiency of the laser marking system.

[0026] Embodiment 2 See attached Figure 4 As shown, a flushing head 58 is provided in the side wall of the projection docking channel 27, a clean water supply system is provided in the assembly chamber 11, and the burning drive component 12 drives the clean water flow to flush the etching mark layer area corresponding to the position of the projection docking channel 27. By setting the projection docking channel 27, the flushing head 58 and the marking guide channel 21, a flushing head 58 is provided in the side wall of the projection docking channel 27, and a water flow with a smaller degree of scattering can be provided on the laser assembly box 10, and the flushing head 58 is driven by the burning drive component 12 to transport the flowing water through the projection docking channel 27 to flush the laser burning surface, which can reduce the degree of laser dissipation caused by water turbidity, further reduce the scope of use of the underwater laser marking system, reduce the adaptation requirements of the laser excitation method, and reduce the cost and energy consumption of underwater laser marking work.

[0027] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes made by a person skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A marine life laser marking device, comprising a laser generator (13) and a focusing mechanism (17), wherein the laser generator (13) provides a writing laser beam (16), an optical path component is provided between the laser generator (13) and the focusing mechanism (17), the optical path component comprises an optical path mechanism (14) and a scanning mechanism (15), the optical path mechanism (14) guides the propagation of the writing laser beam (16), and the optical path component and the focusing mechanism (17) adjust the focusing scanning position of the writing laser beam (16), characterized in that: A marking guide cover (20) is provided in the laser output direction of the focusing mechanism (17), a marking guide channel (21) is provided in the marking guide cover (20), an output focus of the inscription laser beam (16) is located in the marking guide channel (21), and the marking guide channel (21) guides the directional movement of the marked organism.

2. A marine organism laser marking device as claimed in claim 1, characterized in that: The marking guide cover (20) is fixedly connected to a circulation accommodating groove (30), a circulation accommodating chamber (31) is provided in the circulation accommodating groove (30), an inclined connecting plate (33) is provided in the bottom wall of the circulation accommodating chamber (31), the inclined connecting plate (33) guides the marking organism to enter the marking guide channel (21), a water flow penetration net (32) is provided in the side wall of the circulation accommodating chamber (31), and a circulation water seat (34) is provided on the circulation accommodating groove (30).

3. A marine organism laser marking device as described in any one of claims 1 to 2, characterized in that: A projection docking channel (27) is provided in a side wall of the marking guide channel (21), and the projection docking channel (27) accommodates the projection scanning of the inscription laser beam (16).

4. A marine organism laser marking device as claimed in claim 3, characterized in that: The output direction of the marking laser beam (16) is substantially perpendicular to the guide path of the marking guide channel (21); a first telescopic rod (43) is provided in the side wall of the marking guide channel (21); a first push plate (22) is provided at the other end of the first telescopic rod (43); the first push plate (22) is located in the marking guide channel (21); and the first push plate (22) compresses the guide path width of the marking guide channel (21) in the projection direction of the marking laser beam (16).

5. A marine organism laser marking device as claimed in claim 4, characterized in that: The other end of the first push plate (22) is fixedly connected to a push plate isolation layer (23), and the push plate isolation layer (23) is made of elastic material.

6. A marine organism laser marking device as claimed in claim 4, characterized in that: A second telescopic rod (53) is provided in the side wall of the marking guide channel (21); the other end of the second telescopic rod (53) is fixedly connected to a second push plate (52); the second push plate (52) is located in the marking guide channel (21); and the compression direction of the second push plate (52) is perpendicular to the compression direction of the first push plate (22).

7. A marine organism laser marking device as claimed in claim 6, characterized in that: Two first telescopic rods (43) are provided in the side wall of the marking guide channel (21), wherein the position of one of the first telescopic rods (43) corresponds to the projection docking channel (27), a sliding groove (40) is provided on the side of the first push plate (22), one end of the first telescopic rod (43) facing the first push plate (22) is fixedly connected to a second deflection seat (42), the other end of the second deflection seat (42) is hinged to a first deflection seat (41), the first deflection seat (41) is slidably connected in the sliding groove (40), and the sliding guide of the sliding groove (40) is the same as the pushing direction of the second push plate (52).

8. A marine organism laser marking device as claimed in claim 1, characterized in that: An anti-recoil plate (24) is hingedly connected inside the side wall of the marking guide channel (21), and an anti-recoil spring (26) is fixedly connected between the anti-recoil plate (24) and the side wall of the marking guide channel (21). The anti-recoil plate (24) can unidirectionally close the guide path channel of the marking guide channel (21).

9. A marine organism laser marking device as claimed in claim 8, characterized in that: The anti-recoil plate (24) is located at the flow front end of the projection docking channel (27) in the guiding direction of the marking guide channel (21), and one end of the anti-recoil plate (24) facing the inside of the marking guide channel (21) is made of a water-permeable net.

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