A hypotube surface laser marking apparatus

Abstract

The present application relates to the field of laser technology, and more particularly to a kind of hypotube surface laser marking equipment, including operation platform and laser marker, the operation platform is equipped with rotating traction mechanism, rotating traction mechanism is used to clamp hypotube;The laser marker is set in the upper of rotating traction mechanism;The laser marker includes laser emitter, hexagonal prism galvanometer and plane mirror;Laser emitter emits horizontal direction laser to hexagonal prism galvanometer by light outlet, hexagonal prism galvanometer is used to reflect the incident laser downward to the plane mirror, and the plane mirror is marked to hypotube surface;The hexagonal prism galvanometer has six inner wall surfaces, and two groups of mirror surfaces are arranged on the six inner wall surfaces, and each group of mirror surfaces is coated with reflective film corresponding to different wavelength laser;Hexagonal prism galvanometer can rotate around its own axis to switch two groups of mirror surfaces, not only make the adaptation range of laser marker wide, but also convenient to operate, can improve the working efficiency of laser marking.

Description

Technical Field

[0001] This invention relates to the field of laser technology, and in particular to a laser marking device for the surface of a sodium hypochlorite tube. Background Technology

[0002] A hypotube is a precision metal tube used in interventional medical procedures, commonly found in devices such as vascular stents and catheters. The surface of a hypotube is usually marked with laser markings to facilitate observation of the insertion depth by medical personnel.

[0003] For example, patent document CN223406182U discloses an expandable laser with a precision adjustment mechanism on its movable support base, which can be used to install and connect multiple lasers. Each laser is equipped with a galvanometer, and the laser output from the laser is applied to the product through the galvanometer. The combination of multiple lasers and galvanometers expands the working range, enabling simultaneous marking or cutting operations on multiple products. However, the galvanometer in this structure can only reflect a fixed length of laser light, requiring different galvanometers to be replaced when dealing with different materials of the sodium hypochlorite tube. Frequent disassembly of the galvanometer is not only complex to operate but also inefficient. Summary of the Invention

[0004] Therefore, it is necessary to provide a laser marking device for the surface of hyaluronic acid tubes, which addresses the technical problem that current galvanometers can only reflect lasers of a fixed length, thus failing to meet the processing requirements of hyaluronic acid tubes made of different materials.

[0005] The above objectives are achieved through the following technical solutions:

[0006] A laser marking device for the surface of a sodium hypochlorite tube includes an operating table and a laser marking device. The operating table is equipped with a rotary traction mechanism for clamping the sodium hypochlorite tube and moving it along its length and rotating it around its own axis. The laser marking device is positioned above the rotary traction mechanism. The laser marking device includes a laser emitter, a hexagonal prism galvanometer, and a flat mirror. The axis of the hexagonal prism galvanometer extends horizontally, and the flat mirror is located directly below the hexagonal prism galvanometer. The laser emitter emits light through a light outlet. A horizontally oriented laser beam is emitted towards the hexagonal prism galvanometer, which reflects the incident laser beam downwards to the flat mirror. The flat mirror guides the laser beam to reflect it again, marking the surface of the sodium hypochlorite tube located below it. The hexagonal prism galvanometer has six inner wall surfaces, each with two sets of reflective mirrors. Each set of reflective mirrors is coated with a reflective film corresponding to a different wavelength of laser light. The hexagonal prism galvanometer can rotate around its own axis to switch between the two sets of reflective mirrors, aligning them with the light output ports of the laser emitter.

[0007] Furthermore, the two sets of reflecting mirrors are the first reflecting group and the second reflecting group, respectively. The first reflecting group has three first reflecting mirrors, and the second reflecting group has three second reflecting mirrors. The first reflecting mirrors and the second reflecting mirrors are alternately distributed. During the rotation of the hexagonal prism galvanometer, each reflecting mirror is in one of six fixed working positions, namely the first working position, the second working position, the third working position, the fourth working position, the fifth working position, and the sixth working position. The first working position corresponds to the light output port of the laser emitter. In the initial state, the three first reflecting mirrors correspond to the first working position, the third working position, and the fifth working position, respectively, and the three second reflecting mirrors correspond to the second working position, the fourth working position, and the sixth working position, respectively.

[0008] Furthermore, each inner wall surface of the hexagonal prism galvanometer is fixed with a heat sink, and the axis of each heat sink is perpendicular to its corresponding inner wall surface. Each heat sink is coaxially provided with a first vortex groove, and each inner wall surface is provided with a second vortex groove. The first vortex groove and the second vortex groove correspond to each other to form a vortex flow channel. The inner end of the vortex flow channel is located at the center of the heat sink, and the outer end of the vortex flow channel is located at the outer peripheral edge of the heat sink. The interior of the vortex flow channel is used to introduce a cooling medium, which is used to dissipate heat from the heat sink.

[0009] Furthermore, the interior of the vortex flow channel is provided with a vortex baffle made of shape memory alloy material. The vortex baffle has a first state and a second state. When the vortex baffle is in the first state, it is a flat plate that can separate the first vortex groove from the second vortex groove. When the vortex baffle is in the second state, it can twist to connect the first vortex groove and the second vortex groove. When the first or second reflecting mirror is in the first working position, the vortex baffle in its heat sink switches from the first state to the second state. When the first or second reflecting mirror is in the third working position, the vortex baffle in its heat sink switches from the second state to the first state.

[0010] Furthermore, a fixed cylinder is coaxially arranged inside the hexagonal prism galvanometer. The hexagonal prism galvanometer rotates around the circumference of the fixed cylinder. Each heat sink is provided with a first pipe corresponding to the inner end of the vortex flow channel and a second pipe corresponding to the outer end of the vortex flow channel. The first pipe is used to introduce cooling medium into the vortex flow channel, and the second pipe is used to allow the cooling medium in the vortex flow channel to flow out. A first arc-shaped plate is provided on the first pipe, and a second arc-shaped plate is provided on the second pipe. Both the first and second arc-shaped plates are coaxial with the fixed cylinder and are attached to the outer circumferential surface of the fixed cylinder. The first and second arc-shaped plates are on the axis of the fixed cylinder. Aligned upwards, the first and second arc-shaped plates on each heat sink have an arc of 60°. The outer circumferential surface of the fixed cylinder is provided with four first connecting positions, which correspond to the first working position, the second working position, the third working position, and the fourth working position, respectively. Each first connecting position includes a first connecting port and a second connecting port arranged along the axial direction of the fixed cylinder. During the rotation of the hexagonal prism galvanometer, the first tube of the heat sink in the first working position, the second working position, the third working position, and the fourth working position can all be connected to the first connecting port, and the second tube can all be connected to the second connecting port.

[0011] Furthermore, the fixed cylinder is coaxially arranged from the inside to the outside with a first inner tube, a second inner tube, a third inner tube, and a fourth inner tube. All four inner tubes rotate synchronously with the hexagonal prism galvanometer. The first inner tube forms a first chamber, the first inner tube forms a second chamber with the second inner tube, the second inner tube forms a third chamber with the third inner tube, and the third inner tube forms a fourth chamber with the fourth inner tube. The fourth inner tube has six sets of second connecting positions, each corresponding to one of the six inner wall surfaces of the hexagonal prism galvanometer. Four of the second connecting positions correspond one-to-one with four of the first connecting positions. Each second connecting position includes a third connecting port and a fourth connecting port. The port can communicate with the first connecting port, and the fourth connecting port can communicate with the second connecting port; the cooling medium is cooling water or gas, the cooling medium in the first chamber and the third chamber is the same, the cooling medium in the second chamber and the fourth chamber is the same, and the cooling medium in the first chamber and the second chamber is different; the first chamber is connected to the third connecting port on the fourth inner tube corresponding to the three first reflecting mirrors, and the third chamber is connected to the fourth connecting port on the fourth inner tube corresponding to the three first reflecting mirrors; the second chamber is connected to the third connecting port on the fourth inner tube corresponding to the three second reflecting mirrors, and the fourth chamber is connected to the fourth connecting port on the fourth inner tube corresponding to the three second reflecting mirrors.

[0012] Furthermore, the first chamber is connected to a first connecting pipe, the second chamber is connected to a second connecting pipe, and a water storage tank and an air pump are provided outside the fixed cylinder. The air pump is provided with a first air outlet pipe and a second air outlet pipe, and the water storage tank is provided with a first water outlet pipe and a second water outlet pipe. A first valve is provided between the first water outlet pipe and the first air outlet pipe. The first valve only allows the first water outlet pipe or the first air outlet pipe to communicate with the first connecting pipe. A second valve is provided between the second water outlet pipe and the second air outlet pipe. The second valve only allows the second water outlet pipe or the second air outlet pipe to communicate with the second connecting pipe, thereby achieving different cooling media in the first chamber and the second chamber.

[0013] Furthermore, the third chamber is connected to a third connecting pipe, and the fourth chamber is connected to a fourth connecting pipe. Both the third and fourth connecting pipes are connected to a water storage tank, thereby enabling the circulation of cooling water or gas.

[0014] Furthermore, each heat sink is provided with heat dissipation fins on the side away from the first vortex groove. Multiple heat dissipation fins are evenly distributed around the axis of the heat sink, and each heat dissipation fin extends radially along the heat sink.

[0015] Furthermore, a housing is fixed to the side of the laser emitter near the light outlet, the hexagonal prism galvanometer is rotatably disposed inside the housing, and the flat mirror is fixedly installed at the bottom of the housing; a drive motor is also disposed inside the housing, and the drive motor can drive the hexagonal prism galvanometer to rotate around its own axis.

[0016] The beneficial effects of this invention are:

[0017] The laser marking equipment for the surface of a sodium hypochlorite tube provided by the present invention firstly allows switching between two sets of reflecting mirrors by rotating a hexagonal prism galvanometer, thereby reflecting two different wavelengths of laser light. This not only broadens the adaptability of the laser marking device but also makes it easy to operate and improves the efficiency of laser marking.

[0018] Secondly, setting three first reflecting mirrors and three second reflecting mirrors allows them to take turns corresponding to the first working position, avoiding damage to a single first or second reflecting mirror caused by prolonged laser irradiation.

[0019] Third, by allowing the cooling medium to flow along the vortex channel of the heat sink, the heat sink can dissipate heat from the inner wall surface of the hexagonal prism galvanometer, further preventing the hexagonal prism galvanometer from overheating and being damaged. Furthermore, since the laser irradiation position corresponds to the center of the heat sink, the vortex channel allows the cooling medium within it to gradually decrease in temperature during flow, achieving uniform heat dissipation from all inner wall surfaces of the hexagonal prism galvanometer.

[0020] Fourth, laser irradiation heats up the first or second reflecting mirror in the first working position, raising the temperature within the vortex flow channel. The vortex baffle, due to its material properties, twists, switching from the first state to the second state, thus connecting the first and second vortex grooves. This allows the cooling medium to mix, accelerating heat dissipation from the heat sink and ultimately cooling the inner walls of the hexagonal prism galvanometer. Overall, the vortex channels within the corresponding heat sinks of the first, third, and fifth working mirrors are in mixed-flow, parallel-flow, and non-flowing states, respectively, ensuring overall dynamic balance of the galvanometer while minimizing the resistance of the cooling medium.

[0021] Fifth, by setting up the first chamber, the second chamber, the third chamber, and the fourth chamber, the heat transfer between the cooling water entering the heat sink and the cooling water flowing out of the heat sink can be avoided, thus ensuring the heat dissipation effect of the heat sink. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of a laser marking device for the surface of a sodium hypochlorite tube provided in an embodiment of the present invention;

[0023] Figure 2 This is an exploded view of a laser marking device for the surface of a sodium hypochlorite tube according to an embodiment of the present invention.

[0024] Figure 3 This is an exploded view of the laser emitter in a laser marking device for the surface of a sodium hypochlorite tube according to an embodiment of the present invention;

[0025] Figure 4 An exploded view of the hexagonal prism galvanometer and drive motor in a laser marking device for the surface of a sodium hypotube provided in an embodiment of the present invention;

[0026] Figure 5 This is an exploded view of a hexagonal galvanometer in a laser marking device for the surface of a sodium hypochlorite tube according to an embodiment of the present invention.

[0027] Figure 6 for Figure 5 Partial structural diagram;

[0028] Figure 7 This is a schematic diagram of the heat sink and vortex partition in a laser marking device for the surface of a sodium hypochlorite tube according to an embodiment of the present invention;

[0029] Figure 8 This is a partial structural schematic diagram of the hexagonal galvanometer in a laser marking device for the surface of a sodium hypochlorite tube provided in an embodiment of the present invention;

[0030] Figure 9This is a side view of a hexagonal galvanometer in a laser marking device for the surface of a sodium hypochlorite tube according to an embodiment of the present invention.

[0031] Figure 10 for Figure 9 Schematic diagram of the AA section;

[0032] Figure 11 for Figure 9 Schematic diagram of the BB section.

[0033] in:

[0034] 100. Laser marking device; 101. Laser emitter; 102. Housing; 103. Plane mirror; 104. Air pump; 1041. First air outlet pipe; 1042. Second air outlet pipe; 105. Fixing cylinder; 1051. First connecting port; 1052. Second connecting port; 1053. First inner tube; 1054. Second inner tube; 1055. Third inner tube; 1056. Fourth inner tube; 10561. Third connecting port; 10562. Fourth connecting port; 106. Water storage tank; 1061. First water outlet pipe; 1062. Second water outlet pipe; 107, drive motor; 108, hexagonal prism galvanometer; 1081, second vortex groove; 109, second arc-shaped plate; 110, heat sink; 111, vortex baffle; 112, first vortex groove; 113, first arc-shaped plate; 114, first connecting pipe; 115, second connecting pipe; 116, third connecting pipe; 117, fourth connecting pipe; 118, heat dissipation fins; 121, first pipe; 122, second pipe; 200, operating table; 201, rotating mechanism; 202, traction mechanism; 300, hyaluronic acid tube. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0036] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] like Figures 1 to 11 As shown in the figure, an embodiment of the present invention provides a laser marking device for the surface of a sodium hypochlorite tube 300, including an operating table 200 and a laser marking device 100. The operating table 200 is provided with a rotary traction mechanism, which is used to clamp the sodium hypochlorite tube 300 and move the sodium hypochlorite tube 300 along its length and rotate it about its own axis. The laser marking device 100 is disposed above the rotary traction mechanism. The laser marking device 100 includes a laser emitter 101, a hexagonal prism galvanometer 108 and a flat mirror 103. The axis of the hexagonal prism galvanometer 108 extends in the horizontal direction, and the flat mirror 103 is located directly below the hexagonal prism galvanometer 108. The laser emitter 101 emits a horizontal laser beam through its output port to the hexagonal prism mirror 108. The hexagonal prism mirror 108 reflects the incident laser beam downwards to the flat mirror 103, which guides the laser beam to reflect again to mark the surface of the sodium hypochlorite tube 300 located below it. The hexagonal prism mirror 108 has six inner wall surfaces, on which two sets of reflective mirrors are provided. Each set of reflective mirrors is coated with a reflective film corresponding to a different wavelength of laser. The hexagonal prism mirror 108 can rotate around its own axis to switch between the two sets of reflective mirrors, so that they correspond to the output port of the laser emitter 101.

[0039] By rotating the hexagonal prism galvanometer 108, two sets of reflecting mirrors can be switched to reflect two different wavelengths of laser light. This not only makes the laser marking device 100 adaptable to a wide range of applications but also makes it easy to operate and improves the efficiency of laser marking.

[0040] The rotating traction mechanism includes a traction mechanism 202 and a rotating mechanism 201. The rotating mechanism 201 is used to rotate the submersible tube 300 around its own axis, and the traction mechanism 202 is used to move the submersible tube 300 along its own length.

[0041] Furthermore, the two sets of reflecting mirrors are designated as a first reflecting group and a second reflecting group, respectively. The first reflecting group has three first reflecting mirrors, and the second reflecting group has three second reflecting mirrors. The first and second reflecting mirrors are alternately distributed, and each reflecting mirror is in one of six fixed working positions during the rotation of the hexagonal prism galvanometer 108, namely the first working position, the second working position, the third working position, the fourth working position, the fifth working position, and the sixth working position. The first working position corresponds to the light output port of the laser emitter 101. In the initial state, the three first reflecting mirrors correspond to the first, third, and fifth working positions, respectively, and the three second reflecting mirrors correspond to the second, fourth, and sixth working positions, respectively.

[0042] In use, only the first reflecting mirror corresponding to the first working position is used to reflect the laser, while the other two first reflecting mirrors are in a cooling and heat dissipation state and a standby state, respectively. By rotating the hexagonal prism galvanometer 108, the three first reflecting mirrors can take turns corresponding to the first working position, thus avoiding damage caused by overheating of a single first reflecting mirror due to prolonged exposure to laser irradiation.

[0043] If the second reflector needs to be replaced, simply rotate the hexagonal prism galvanometer 108 so that the three reflector surfaces of the hexagonal prism galvanometer 108 are simultaneously rotated from the second working position, the fourth working position and the sixth working position to the corresponding first working position, the third working position and the fifth working position, and make the three second reflector surfaces align with the first working position in turn. This can avoid damage to a single second reflector surface caused by prolonged exposure to laser light.

[0044] Furthermore, each inner wall surface of the hexagonal prism galvanometer 108 is fixed with a heat sink 110, and the axis of each heat sink 110 is perpendicular to its corresponding inner wall surface. Each heat sink 110 is coaxially provided with a first vortex groove 112, and each inner wall surface is provided with a second vortex groove 1081. The first vortex groove 112 and the second vortex groove 1081 correspond to form a vortex flow channel. The inner end of the vortex flow channel is located at the center of the heat sink 110, and the outer end of the vortex flow channel is located at the outer peripheral edge of the heat sink 110. The interior of the vortex flow channel is used to introduce a cooling medium, which is used to dissipate heat from the heat sink 110.

[0045] By allowing the cooling medium to flow along the vortex channel of the heat sink 110, the heat sink 110 can dissipate heat from the inner wall surface of the hexagonal prism galvanometer 108, further preventing the hexagonal prism galvanometer 108 from overheating and being damaged. Furthermore, since the laser irradiation position corresponds to the center of the heat sink 110, the temperature of the cooling medium within the vortex channel gradually decreases during flow, achieving uniform heat dissipation from all inner wall surfaces of the hexagonal prism galvanometer 108.

[0046] Furthermore, the interior of the vortex flow channel is provided with a vortex baffle 111, which is made of shape memory alloy material. The vortex baffle 111 has a first state and a second state. When the vortex baffle 111 is in the first state, it is a flat plate that can separate the first vortex groove 112 from the second vortex groove 1081. When the vortex baffle 111 is in the second state, it can be twisted to connect the first vortex groove 112 and the second vortex groove 1081. When the first or second reflecting mirror is in the first working position, the vortex baffle 111 in its heat sink 110 switches from the first state to the second state. When the first or second reflecting mirror is in the third working position, the vortex baffle 111 in its heat sink 110 switches from the second state to the first state.

[0047] Laser irradiation will heat up the first or second reflecting mirror in the first working position, thereby increasing the temperature inside the vortex channel. The vortex baffle 111 will twist under the influence of its own material properties, thus changing from the first state ( Figure 6 The flat plate shape in the middle switches to the second state. Figure 7 The first vortex groove 112 and the second vortex groove 1081 are connected by a twisted shape, so that the cooling medium can be mixed to accelerate the heat dissipation of the heat sink 110, thereby achieving heat dissipation of each inner wall surface of the hexagonal prism galvanometer 108.

[0048] When the first or second reflecting mirror is in the third working position, the laser no longer irradiates, thereby reducing the temperature in the vortex flow channel of the corresponding heat sink 110. The vortex baffle 111 is twisted under the action of its own material properties, thus switching from the second state to the first state, so that the first vortex groove 112 and the second vortex groove 1081 are separated again, and the cooling medium achieves horizontal flow to reduce the flow resistance of the cooling medium and avoid affecting the stability of the hexagonal prism galvanometer 108.

[0049] Furthermore, a fixed cylinder 105 is coaxially arranged inside the hexagonal prism galvanometer 108. The hexagonal prism galvanometer 108 rotates around the fixed cylinder 105. Each heat sink 110 is provided with a first pipe 121 corresponding to the inner end of the vortex channel and a second pipe 122 corresponding to the outer end of the vortex channel. The first pipe 121 is used to introduce cooling medium into the vortex channel, and the second pipe 122 is used to allow the cooling medium in the vortex channel to flow out. A first arc-shaped plate 113 is provided on the first pipe 121, and a second arc-shaped plate 109 is provided on the second pipe 122. Both the first arc-shaped plate 113 and the second arc-shaped plate 109 are coaxial with the fixed cylinder 105 and are attached to the outer circumferential surface of the fixed cylinder 105. The fixed cylinder 105 is axially aligned, and the first arc-shaped piece 113 and the second arc-shaped piece 109 on each heat sink 110 have an arc of 60°. The outer circumferential surface of the fixed cylinder 105 is provided with four first communication positions, which correspond to the first working position, the second working position, the third working position and the fourth working position respectively. Each first communication position includes a first communication port 1051 and a second communication port 1052 arranged along the axial direction of the fixed cylinder 105. During the rotation of the hexagonal prism galvanometer 108, the first tube 121 of the heat sink 110 in the first working position, the second working position, the third working position and the fourth working position can all be connected to the first communication port 1051, and the second tube 122 can all be connected to the second communication port 1052.

[0050] Specifically, the outer circumferential surface of the fixed cylinder 105 is provided with two annular grooves coaxially, which correspond to the first arc-shaped piece 113 and the second arc-shaped piece 109, respectively, thereby preventing leakage of the cooling medium.

[0051] Furthermore, the fixed cylinder 105 is coaxially arranged from the inside to the outside with a first inner tube 1053, a second inner tube 1054, a third inner tube 1055, and a fourth inner tube 1056. All four inner tubes rotate synchronously with the hexagonal prism galvanometer 108. The first inner tube 1053 forms a first chamber, the first inner tube 1053 and the second inner tube 1054 form a second chamber, the second inner tube 1054 and the third inner tube 1055 form a third chamber, and the third inner tube 1055 and the fourth inner tube 1056 form a fourth chamber. The fourth inner tube 1056 has six sets of second connecting positions, each corresponding to one of the six inner wall surfaces of the hexagonal prism galvanometer 108. Four of the second connecting positions correspond one-to-one with four of the first connecting positions. The second connecting position includes a third connecting port 10561 and a... Four connecting ports 10562, wherein the third connecting port 10561 can communicate with the first connecting port 1051, and the fourth connecting port 10562 can communicate with the second connecting port 1052; the cooling medium is cooling water or gas, the cooling medium in the first chamber and the third chamber is the same, the cooling medium in the second chamber and the fourth chamber is the same, and the cooling medium in the first chamber and the second chamber is different; the first chamber is connected to the third connecting port 10561 on the fourth inner tube 1056 corresponding to the three first reflecting mirrors, and the third chamber is connected to the fourth connecting port 10562 on the fourth inner tube 1056 corresponding to the three first reflecting mirrors; the second chamber is connected to the third connecting port 10561 on the fourth inner tube 1056 corresponding to the three second reflecting mirrors, and the fourth chamber is connected to the fourth connecting port 10562 on the fourth inner tube 1056 corresponding to the three second reflecting mirrors.

[0052] Since only four sets of first connecting positions are provided on the fixed cylinder 105, neither the first nor the second reflecting mirror surface on the hexagonal prism galvanometer 108 in the fifth working position can connect to the third connecting port 10561 and the fourth connecting port 10562, thus the internal cooling medium no longer flows. Overall, the first or second reflecting mirror surfaces in the first, third, and fifth working positions respectively correspond to the vortex channels in the heat sink 110 in mixed flow, horizontal flow, and no flow states, respectively. This minimizes the resistance of the cooling medium while ensuring the overall dynamic balance of the galvanometer.

[0053] When the first reflecting mirror is in laser-receiving mode, cooling water can be introduced into the heat sink 110 corresponding to the first reflecting mirror through the first chamber. After flowing back through the vortex channel, the cooling water returns to the third chamber. Simultaneously, gas is introduced into the heat sink 110 corresponding to the second reflecting mirror through the second chamber. After flowing back through the vortex channel, the gas returns to the fourth chamber. Conversely, when the second reflecting mirror is in laser-receiving mode, cooling water can be introduced into the heat sink 110 corresponding to the second reflecting mirror through the second chamber. After flowing back through the vortex channel, the cooling water returns to the fourth chamber. Simultaneously, gas is introduced into the heat sink 110 corresponding to the first reflecting mirror through the first chamber. After flowing back through the vortex channel, the gas returns to the third chamber. This prevents the cooling water entering and exiting the heat sink 110 from transferring heat between them, ensuring the heat dissipation effect of the heat sink 110.

[0054] Furthermore, the first chamber is connected to a first connecting pipe 114, and the second chamber is connected to a second connecting pipe 115. The outside of the fixed cylinder 105 is provided with a water storage tank 106 and an air pump 104. The air pump 104 is provided with a first air outlet pipe 1041 and a second air outlet pipe 1042. The water storage tank 106 is provided with a first water outlet pipe 1061 and a second water outlet pipe 1062. A first valve is provided between the first water outlet pipe 1061 and the first air outlet pipe 1041. The first valve only allows the first water outlet pipe 1061 or the first air outlet pipe 1041 to communicate with the first connecting pipe 114. A second valve is provided between the second water outlet pipe 1062 and the second air outlet pipe 1042. The second valve only allows the second water outlet pipe 1062 or the second air outlet pipe 1042 to communicate with the second connecting pipe 115, thereby achieving different cooling media in the first chamber and the second chamber.

[0055] Specifically, both the first and second valves are two-position three-way valves.

[0056] Furthermore, the third chamber is connected to a third connecting pipe 116, and the fourth chamber is connected to a fourth connecting pipe 117. Both the third connecting pipe 116 and the fourth connecting pipe 117 are connected to the water storage tank 106, thereby realizing the circulation of cooling water or gas.

[0057] Furthermore, each heat sink 110 has heat dissipation fins 118 on the side away from the first vortex groove 112. The multiple heat dissipation fins 118 are evenly distributed around the axis of the heat sink 110, and each heat dissipation fin 118 extends radially along the heat sink 110. This can enhance the heat dissipation effect of the heat sink 110.

[0058] Furthermore, a housing 102 is fixed to the side of the laser emitter 101 near the light outlet, the hexagonal prism galvanometer 108 is rotatably disposed inside the housing 102, and the flat mirror 103 is fixedly installed at the bottom of the housing 102; a drive motor 107 is also disposed inside the housing 102, and the drive motor 107 can drive the hexagonal prism galvanometer 108 to rotate around its own axis.

[0059] Based on the above embodiments, the usage principle and working process of the present invention are as follows:

[0060] According to the requirements of the marking pattern, the traction mechanism 202 and the rotation mechanism 201 are controlled to make the hysteresis tube 300 move along its length and rotate around its own axis.

[0061] Taking the first reflecting mirror in its working state as an example, the laser emitted by the laser emitter 101 is directed into the first reflecting mirror in its first working position. The first reflecting mirror reflects the laser downwards to the flat mirror 103 and guides it to the surface of the sodium hypochlorite tube 300 to be marked. By controlling the slight vibration of the hexagonal prism galvanometer 108, laser marking can be completed on the surface of the sodium hypochlorite tube 300. After the current first reflecting mirror has been working for a period of time, the hexagonal prism galvanometer 108 is rotated 120° by the drive motor 107, which allows the next first reflecting mirror in the same group to rotate to the first working position. The original first reflecting mirror then enters the third working position, i.e., the cooling and heat dissipation state, while the previous first reflecting mirror in the same group enters the fifth working position, i.e., the standby state. This cycle is repeated to achieve the rotation of the three first reflecting mirrors for working and heat dissipation, avoiding overheating of a single first reflecting mirror.

[0062] Simultaneously, by controlling the first valve and the second valve, the first air outlet pipe 1041 is closed and the first water outlet pipe 1061 is opened, thereby sending cooling water into the first chamber through the first connecting pipe 114 via the first water outlet pipe 1061. The cooling water enters the first connecting port 1051 on the fixed cylinder 105 corresponding to the first and third working positions through the third connecting port 10561 on the fourth inner pipe 1056, and then enters the vortex channel of the heat sink 110 located at the first and third working positions through the first pipe 121. Finally, it returns from the second pipe 122 of the heat sink 110 to the second connecting port 1052 on the fixed cylinder 105 corresponding to the first and third working positions, and then returns to the third chamber through the fourth connecting port 10562 on the fourth inner pipe 1056. Meanwhile, the second air outlet pipe 1042 is opened and the second water outlet pipe 1061 is opened. When pipe 1062 is closed, the second vent pipe 1042 sends gas into the second chamber through the second connecting pipe 115. The gas then enters the first connecting port 1051 on the fixed cylinder 105 corresponding to the second and fourth working positions through the third connecting port 10561 on the fourth inner pipe 1056, and enters the vortex channel of the heat sink 110 located at the second and fourth working positions through the first pipe 121. Finally, the gas returns from the second pipe 122 of the heat sink 110 to the second connecting port 1052 on the fixed cylinder 105 corresponding to the second and fourth working positions, and returns to the fourth chamber through the fourth connecting port 10562 on the fourth inner pipe 1056. Finally, the cooling water in the third chamber returns to the water storage tank 106 through the third connecting pipe 116, and the gas in the fourth chamber returns to the water storage tank 106 through the fourth connecting pipe 117.

[0063] In the first working position, the heat sink 110 of the first reflective mirror experiences a temperature increase at its center due to laser irradiation. The vortex baffle 111, made of shape memory alloy, twists into a spiral shape (the second state), connecting the first vortex groove 112 on the heat sink 110 with the second vortex groove 1081 on the inner wall, causing the cooling medium to flow in mixed current and rapidly remove heat. When the first reflective mirror rotates to the third working position (stopping laser irradiation), its temperature decreases, and the vortex baffle 111 returns to its flat shape (the first state), separating the two vortex grooves. This allows the cooling medium to resume advection, reducing flow resistance and ensuring stable vibration of the hexagonal prism galvanometer 108.

[0064] When switching to the second reflector, cooling water is introduced into the second chamber and gas is introduced into the first chamber by switching the state of the first valve and the second valve.

[0065] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A laser marking device for the surface of a sodium hypochlorite tube, characterized in that, include: An operating table is provided with a rotary traction mechanism, which is used to clamp the sodium hypochlorite tube and move the sodium hypochlorite tube along its length and rotate it around its own axis. A laser marking device is disposed above the rotary traction mechanism. The laser marking device includes a laser emitter, a hexagonal prism galvanometer, and a flat mirror. The axis of the hexagonal prism galvanometer extends horizontally, and the flat mirror is located directly below the hexagonal prism galvanometer. The laser emitter emits a horizontal laser beam through a light outlet towards the hexagonal prism galvanometer. The hexagonal prism galvanometer reflects the incident laser beam downwards to the flat mirror, and the flat mirror guides the laser beam to reflect it again, thereby marking the surface of the sodium hypochlorite tube located below it. The hexagonal prism galvanometer has six inner wall surfaces, each with two sets of reflective mirrors. Each set of reflective mirrors is coated with a reflective film corresponding to a different wavelength of laser light. The hexagonal prism galvanometer can rotate around its own axis to switch between the two sets of reflective mirrors, aligning them with the light output ports of the laser emitter. Each inner wall surface of the hexagonal prism galvanometer is fixedly equipped with a heat sink, the axis of each heat sink being perpendicular to its corresponding inner wall surface. Each heat sink has a first vortex groove coaxially arranged on it, and each inner wall surface has a second vortex groove. The first and second vortex grooves correspond to each other to form a vortex flow channel. The vortex flow channel is equipped with a vortex baffle made of shape memory alloy material. The vortex baffle has a first state and a second state. When the vortex baffle is in the first state, it is a flat plate that separates the first and second vortex grooves. When the vortex baffle is in the second state, it can twist to connect the first and second vortex grooves.

2. The laser marking equipment for the surface of a sodium hypochlorite tube according to claim 1, characterized in that, The two sets of reflective mirrors are the first reflective group and the second reflective group, respectively. The first reflective group has three first reflective mirrors, and the second reflective group has three second reflective mirrors. The first and second reflective mirrors are alternately distributed. During the rotation of the hexagonal prism galvanometer, each reflective mirror is in one of six fixed working positions, namely the first working position, the second working position, the third working position, the fourth working position, the fifth working position, and the sixth working position. The first working position corresponds to the light output port of the laser emitter. In the initial state, the three first reflective mirrors correspond to the first, third, and fifth working positions, respectively, and the three second reflective mirrors correspond to the second, fourth, and sixth working positions, respectively.

3. The laser marking equipment for the surface of a sodium hypochlorite tube according to claim 2, characterized in that, The inner end of the vortex flow channel is located at the center of the heat sink, and the outer end of the vortex flow channel is located at the outer peripheral edge of the heat sink. The interior of the vortex flow channel is used to introduce a cooling medium, which is used to dissipate heat from the heat sink.

4. The laser marking equipment for the surface of a sodium hypochlorite tube according to claim 3, characterized in that, When the first or second reflecting mirror is in the first working position, the vortex baffle in its heat sink switches from the first state to the second state; when the first or second reflecting mirror is in the third working position, the vortex baffle in its heat sink switches from the second state to the first state.

5. The laser marking equipment for the surface of a sodium hypochlorite tube according to claim 4, characterized in that, The hexagonal prism galvanometer has a fixed cylinder coaxially mounted inside. The hexagonal prism galvanometer rotates around the circumference of the fixed cylinder. Each heat sink has a first pipe corresponding to the inner end of the vortex flow channel and a second pipe corresponding to the outer end of the vortex flow channel. The first pipe is used to introduce cooling medium into the vortex flow channel, and the second pipe is used to allow the cooling medium in the vortex flow channel to flow out. The first pipe has a first arc-shaped plate, and the second pipe has a second arc-shaped plate. Both the first and second arc-shaped plates are coaxial with the fixed cylinder and are fitted against the outer circumferential surface of the fixed cylinder. The first and second arc-shaped plates are aligned axially with the fixed cylinder. The first and second arc-shaped plates on each heat sink have an arc of 60°. The outer circumferential surface of the fixed cylinder is provided with four first communication positions, which correspond to the first working position, the second working position, the third working position, and the fourth working position, respectively. Each first communication position includes a first communication port and a second communication port arranged along the axial direction of the fixed cylinder. During the rotation of the hexagonal prism galvanometer, the first tube of the heat sink in the first working position, the second working position, the third working position, and the fourth working position can all communicate with the first communication port, and the second tube of the heat sink can all communicate with the second communication port.

6. The laser marking equipment for the surface of a sodium hypochlorite tube according to claim 5, characterized in that, The fixed cylinder has a first inner tube, a second inner tube, a third inner tube, and a fourth inner tube arranged coaxially from the inside to the outside. All four inner tubes rotate synchronously with the hexagonal prism galvanometer. The first inner tube forms a first chamber, the first inner tube forms a second chamber with the second inner tube, the second inner tube forms a third chamber with the third inner tube, and the third inner tube forms a fourth chamber with the fourth inner tube. The fourth inner tube has six sets of second connecting positions, each corresponding to one of the six inner wall surfaces of the hexagonal prism galvanometer. Four of the second connecting positions correspond one-to-one with four of the first connecting positions. Each second connecting position includes a third connecting port and a fourth connecting port. The first chamber is capable of communicating with the first connecting port, and the fourth connecting port is capable of communicating with the second connecting port; the cooling medium is cooling water or gas, the cooling medium in the first chamber and the third chamber is the same, the cooling medium in the second chamber and the fourth chamber is the same, and the cooling medium in the first chamber and the second chamber is different; the first chamber is connected to the third connecting port on the fourth inner tube corresponding to the three first reflecting mirrors, and the third chamber is connected to the fourth connecting port on the fourth inner tube corresponding to the three first reflecting mirrors; the second chamber is connected to the third connecting port on the fourth inner tube corresponding to the three second reflecting mirrors, and the fourth chamber is connected to the fourth connecting port on the fourth inner tube corresponding to the three second reflecting mirrors.

7. The laser marking equipment for the surface of a sodium hypochlorite tube according to claim 6, characterized in that, The first chamber is connected to a first connecting pipe, and the second chamber is connected to a second connecting pipe. A water storage tank and an air pump are provided outside the fixed cylinder. The air pump is provided with a first air outlet pipe and a second air outlet pipe. The water storage tank is provided with a first water outlet pipe and a second water outlet pipe. A first valve is provided between the first water outlet pipe and the first air outlet pipe. The first valve only allows the first water outlet pipe or the first air outlet pipe to communicate with the first connecting pipe. A second valve is provided between the second water outlet pipe and the second air outlet pipe. The second valve only allows the second water outlet pipe or the second air outlet pipe to communicate with the second connecting pipe, thereby achieving different cooling media in the first chamber and the second chamber.

8. The laser marking equipment for the surface of a sodium hypochlorite tube according to claim 7, characterized in that, The third chamber is connected to a third connecting pipe, and the fourth chamber is connected to a fourth connecting pipe. Both the third and fourth connecting pipes are connected to a water storage tank, thereby enabling the circulation of cooling water or gas.

9. The laser marking equipment for the surface of a sodium hypochlorite tube according to claim 3, characterized in that, Each heat sink has heat dissipation fins on the side away from the first vortex groove. Multiple heat dissipation fins are evenly distributed around the axis of the heat sink, and each heat dissipation fin extends radially along the heat sink.

10. The laser marking equipment for the surface of a sodium hypochlorite tube according to claim 1, characterized in that, The laser emitter has a housing fixed on the side near the light output port. The hexagonal prism galvanometer is rotatably mounted inside the housing, and the flat mirror is fixedly installed at the bottom of the housing. A drive motor is also provided inside the housing, which can drive the hexagonal prism galvanometer to rotate around its own axis.

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