3D printing device and printing method for bicycle titanium alloy water bottle cage

Abstract

The invention provides a bicycle titanium alloy water bottle cage 3D printing device and method, and belongs to the technical field of 3D printing.The bicycle titanium alloy water bottle cage 3D printing device comprises a main body frame, two second supporting plates are fixedly connected to the top end of the main body frame, and powder storage tanks are installed at the close ends of the two second supporting plates; a spiral stirring device is rotationally connected into the powder storage tank, a powder feeder is installed on the inner wall of the top of the main body frame and communicates with the powder storage tank, two laser scanning systems are installed at the bottom end of the main body frame, and the height of a first supporting plate is adjusted through a height adjusting assembly, a second lead screw and the like so as to set the powder laying thickness; the spiral stirring equipment in the powder storage tank continuously rotates, titanium alloy powder is prevented from caking, the powder feeder takes powder from the powder storage tank according to a system instruction and conveys the powder to the position above the water-cooling printing platform, a positioning disc in the powder laying adjusting mechanism drives a first lead screw to rotate, an electric powder laying roller is driven to transversely move, and the powder is evenly laid on the surface of the platform.

Description

Technical Field

[0001] The present invention belongs to the technical field of 3D printing, and particularly relates to a 3D printing device and a printing method for a titanium alloy water bottle holder of a bicycle. Background Art

[0002] In the existing technical field of 3D printing, there are many problems to be solved urgently in the printing of titanium alloy water bottle holders for bicycles. When traditional 3D printing devices print high-melting-point metals such as titanium alloy, the titanium alloy powder is prone to caking in the powder storage tank, resulting in uneven powder feeding, which seriously affects the uniformity and accuracy of the printing layer. At the same time, it is difficult to precisely control the powder thickness during the powder spreading process, and defects such as poor interlayer bonding and uneven surface are likely to occur. In addition, when printing water bottle holder components with complex angles or inclined structures, the angle of the powder feeder cannot be adjusted flexibly, and the powder conveying direction is difficult to accurately match the printing requirements, which not only causes powder waste, but also causes the powder to flow due to gravity, thereby causing problems such as deformation and warping of the printed parts. Moreover, the oxygen in the printing environment easily causes the titanium alloy powder to be oxidized at high temperature, and the existing devices lack an efficient inert gas protection and circulation purification mechanism, making it difficult to maintain a stable and pure printing environment, which affects the product quality.

[0003] In view of this, the present invention provides a 3D printing device and a printing method for a titanium alloy water bottle holder of a bicycle. By setting a spiral stirring device to prevent the titanium alloy powder from caking, and cooperating with a powder spreading adjustment mechanism and a height adjustment component to achieve precise control of the powder thickness; using an angle adjustment mechanism to flexibly adjust the angles of the powder feeder and the printing platform to ensure the accuracy of powder conveying during the printing of complex structures; at the same time, equipping an inert gas device, through the injection and circulation purification of inert gas, strictly controlling the oxygen concentration in the printing environment below 0.1%, effectively preventing powder oxidation. The above technical solutions work together synergistically, significantly improving the accuracy, quality and efficiency of 3D printing of titanium alloy water bottle holders, and effectively solving the key problems existing in the prior art. Summary of the Invention

[0004] The purpose of the present invention is to provide a 3D printing device and a printing method for a titanium alloy water bottle holder of a bicycle, aiming to solve the problems in the prior art that the titanium alloy powder is prone to caking in the powder storage tank, resulting in uneven powder feeding, affecting the uniformity and accuracy of the printing layer; it is difficult to precisely control the powder thickness during powder spreading, causing defects such as poor interlayer bonding and uneven surface; when printing components with complex angles or inclined structures, it is inconvenient to adjust the angle of the powder feeder, and the powder conveying direction cannot accurately match the requirements, easily leading to powder waste and deformation and warping of the printed parts due to gravity flow; the oxygen in the printing environment easily causes the titanium alloy powder to be oxidized at high temperature, and the existing devices lack an efficient inert gas protection and circulation purification mechanism, making it difficult to maintain a stable and pure printing environment, affecting the product quality.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A 3D printing device for a titanium alloy water bottle holder of a bicycle, comprising:

[0007] A main body frame, at the top end of the main body frame are fixedly connected with two second support plates, on the closer ends of the two second support plates is installed a powder storage tank, inside the powder storage tank is rotationally connected a spiral stirring device, on the top inner wall of the main body frame is installed a powder feeder, there is a connection between the powder feeder and the powder storage tank, at the bottom end of the main body frame are installed two laser scanning systems, and inside both laser scanning systems are provided high-power fiber lasers, scanning galvanometers and focusing lenses;

[0008] A water-cooled printing platform, which is arranged below the two powder feeders;

[0009] And further includes a powder spreading adjustment mechanism, the powder spreading adjustment mechanism is arranged inside the main body frame, and the powder spreading adjustment mechanism cooperates with the two powder feeders to adjust the thickness of the titanium alloy powder;

[0010] An angle adjustment mechanism, the angle adjustment mechanism is arranged below the powder feeder, and the angle adjustment mechanism is used to adjust the angle of the powder feeder.

[0011] As a preferred solution of the present invention, the powder spreading adjustment mechanism includes:

[0012] Concave connecting frames, there are two concave connecting frames, and the two concave connecting frames are respectively fixedly connected to the inner walls on both sides of the main body frame;

[0013] A limiting rod, the limiting rod is fixedly connected to the front and rear inner walls of one of the concave connecting frames located on the left;

[0014] A first lead screw, the first lead screw is rotationally connected to the front and rear inner walls of the other concave connecting frame;

[0015] A positioning disk, the positioning disk is fixedly connected to the front end of one of the concave connecting frames, and the output end of the positioning disk is fixedly connected to one end of the first lead screw;

[0016] An electric powder spreading roller, one end of the electric powder spreading roller is slidably connected to the circumferential surface of the limiting rod, and the other end of the electric powder spreading roller is sleeved on the outer surface of the first lead screw;

[0017] A first nut, the first nut is fixedly connected to one end of the electric powder spreading roller, and the first nut is threadedly connected to the circumferential surface of the first lead screw;

[0018] A first support plate, the first support plate is slidably connected to the inner walls on both sides of the main body frame, and the bottom end of the first support plate is fixedly connected with a fixing frame;[[ID=3**]]

[0019] Moving plates, there are four moving plates, and the four moving plates are respectively attached to both ends of the first support plate;

[0020] Height adjustment assembly, the height adjustment is arranged inside the main body frame, and the height adjustment is used to adjust the height of the first support plate.

[0021] As a preferred solution of the present invention, the height adjustment assembly includes:

[0022] Two second lead screws, the two second lead screws are respectively threadedly connected to the upper and lower inner walls of the main body frame;

[0023] Two second nuts, the two second nuts are respectively threadedly connected to the circumferential surfaces of the two second lead screws;

[0024] Four clamping blocks, the four clamping blocks are respectively movably clamped inside the first support plate and the four moving plates;

[0025] Positioning rods, the positioning rods are respectively slidably connected inside two of the moving plates located at the front side;

[0026] A second motor, the second motor is fixedly connected to the top end of the main body frame, and the output end of the second motor is fixedly connected to the top end of one of the second lead screws;

[0027] Two third transmission gears, the two third transmission gears are respectively fixedly connected to the circumferential surfaces of the two second lead screws;

[0028] A toothed belt, the toothed belt is in transmission engagement with the circumferential surfaces of the two third transmission gears.

[0029] As a preferred solution of the present invention, the angle adjustment mechanism includes:

[0030] A fixing plate, the fixing plate is fixedly connected to the front and rear inner walls of the fixing frame;

[0031] A concave arc plate, the concave arc plate is fixedly connected to the bottom end of the water-cooled printing platform;

[0032] A cam sleeve disc, the cam sleeve disc is rotatably connected inside the fixing plate, and the cam sleeve disc jacks up the bottom of the concave arc plate;

[0033] A second transmission gear, the second transmission gear is fixedly connected to the bottom end of the cam sleeve disc;

[0034] A first motor, the first motor is fixedly connected to the bottom end of the fixing frame;

[0035] The first transmission gear, the first transmission gear is fixedly connected to the output end of the first motor, and the first transmission gear meshes with the second transmission gear;

[0036] The electronically controlled magnetic universal sleeve suction cup, the electronically controlled magnetic universal sleeve suction cup is installed at the adjacent ends of the water-cooled printing platform and the fixing frame.

[0037] As a preferred solution of the present invention, an inert gas device is fixedly connected to the upper inner wall of the main body frame, and the inert gas device is composed of an inert gas storage tank, a gas delivery pipeline and a gas circulation purification device.

[0038] As a preferred solution of the present invention, a protective cover is installed on the outer surface of the main body frame, and a concave plate is fixedly connected to the top end of the main body frame, and the concave plate is sleeved on the outer surface of the powder storage tank.

[0039] As a preferred solution of the present invention, temperature sensors are fixedly connected to the four corners of the inner wall of the top of the main body frame.

[0040] As a preferred solution of the present invention, a plurality of third support plates are fixedly connected to the bottom end of the main body frame.

[0041] As a preferred solution of the present invention, a sealing cover is clamped at the feed inlet of the powder storage tank, a computer control system is built in the main body frame, and protective plates are fixedly connected to the inner walls on both sides of the main body frame.

[0042] When using any of the above bicycle titanium alloy water bottle holders 3D printing devices, it is characterized by including the following steps:

[0043] S1. After the equipment is started, first fix the main body frame and confirm that components such as the powder storage tank and the water-cooled printing platform are installed in place, and enclose the main body frame through the protective cover to form a printing space; then start the inert gas device, inject inert gas into the main body frame, reduce the oxygen concentration to a safe range to prevent oxidation of the titanium alloy powder. Then, import the three-dimensional model of the water bottle holder into the computer control system, and adjust the height of the first support plate through the height adjustment component, the second lead screw, etc. to set the powder spreading thickness; the spiral stirring device in the powder storage tank rotates continuously to prevent the titanium alloy powder from caking, and the powder feeder takes powder from the powder storage tank according to the system instruction and conveys it above the water-cooled printing platform. The positioning disk in the powder spreading adjustment mechanism drives the first lead screw to rotate, driving the electric powder spreading roller to move horizontally to evenly spread the powder on the platform surface;

[0044] S2. When it is necessary to print parts with complex angles or tilts, the first motor in the angle adjustment mechanism drives the cam sleeve to rotate through the first transmission gear and the second transmission gear, lifting the concave arc disk to tilt the water-cooled printing platform to the target angle, and the electrically controlled magnetic universal sleeve suction cup locks the platform position; the laser scanning system emits a laser, scans the powder layer according to the model slicing trajectory, and melts the titanium alloy powder to form it layer by layer. During the printing process, the inert gas equipment continuously circulates and purifies, and the temperature sensor monitors the temperature in real time and adjusts it in conjunction. After each layer is printed, until the model is formed, the equipment is turned off and the platform is cooled. The printed part is removed through the electrically controlled magnetic universal sleeve suction cup for post-processing such as sandblasting and heat treatment; finally, the residual powder in the powder storage tank, electric powder roller and other components is cleaned, and the equipment is maintained to ensure normal operation next time.

[0045] Compared with the prior art, the present invention has the following beneficial effects:

[0046] 1. In this solution, the powder storage tank is fixed to the top of the main frame through a second support plate. The internal spiral stirring device is driven by a motor to rotate continuously to prevent the titanium alloy powder from agglomerating. The powder feeder is connected to the powder storage tank. When the computer control system issues a powder feeding command, the internal metering mechanism of the powder feeder accurately controls the powder output and delivers the evenly stirred powder to the top of the water-cooled printing platform. The stirring device and the powder feeder work together to ensure that the powder always remains loose and is delivered in a quantitative manner on demand, solving the problem of uneven powder feeding caused by powder agglomeration in traditional processes.

[0047] 2. In this solution, the computer control system adjusts the deflection angle of the scanning galvanometer according to the coordinates of the tilted platform, so that the laser beam path matches the tilted plane. The focusing lens focuses the laser onto the inclined powder layer surface. The high-power fiber laser scans along the model slicing trajectory, melting the powder layer by layer to avoid powder flow problems caused by gravity. The angle adjustment mechanism enables flexible adjustment of the platform angle, and the laser scanning system synchronously corrects the scanning path. The two work together to ensure the printing accuracy of complex angle structures and reduce powder waste and deformation risks.

[0048] 3. In this solution, before printing, an inert gas storage tank injects argon or nitrogen into the main frame through a pipeline. The protective cover and the concave plate form a sealed space to reduce the oxygen concentration. During the printing process, the gas circulation purification device continuously filters metal vapor and smoke to maintain a pure environment and monitors the temperature of the printing area in real time. When the temperature exceeds the threshold, a signal is sent to the computer control system to automatically adjust the laser power or scanning speed. At the same time, the gas circulation purification device is started to accelerate heat dissipation to avoid powder oxidation or deformation of the printed part caused by high temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0050] Figure 1 is a three-dimensional view of the present invention;

[0051] Figure 2 is a first perspective sectional three-dimensional view of the present invention;

[0052] Figure 3 is a second perspective sectional three-dimensional view of the present invention;

[0053] Figure 4 is a third perspective exploded three-dimensional view of the present invention;

[0054] Figure 5 is a partial enlarged view of the adjustment assembly in the present invention.

[0055] In the figure: 1, main body frame; 2, protective cover; 3, powder storage tank; 301, spiral stirring device; 302, powder feeder; 303, laser scanning system; 304, temperature sensor; 4, powder spreading adjustment mechanism; 401, concave connecting frame; 402, first support plate; 403, water-cooled printing platform; 404, fixing frame; 405, limiting rod; 406, first motor; 407, electric powder spreading roller; 408, first lead screw; 409, positioning disk; 4010, concave arc disk; 4011, first transmission gear; 4012, second transmission gear; 4013, cam sleeve disk; 4014, fixing plate; 4015, first nut; 4016, electronically controlled magnetic universal sleeve suction cup; 5, inert gas device; 6, protective plate; 7, second motor; 701, second lead screw; 702, moving plate; 703, second nut; 704, block; 8, second support plate; 9, third support plate; 10, concave plate; 11, third transmission gear; 12, toothed belt. Detailed implementation manners

[0056] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0057] Embodiment 1

[0058] Please refer to Figures 1 - 5 , the present invention provides the following technical solutions:

[0059] A 3D printing device for a titanium alloy water bottle holder of a bicycle, comprising:

[0060] The main frame 1 has two second support plates 8 fixedly connected to the top end thereof. A powder storage tank 3 is installed at the closer ends of the two second support plates 8. A spiral stirring device 301 is rotatably connected inside the powder storage tank 3. A powder feeder 302 is installed on the inner wall of the top of the main frame 1. The powder feeder 302 is communicated with the powder storage tank 3. Two laser scanning systems 303 are installed at the bottom end of the main frame 1. A high-power fiber laser, a scanning galvanometer and a focusing lens are provided in each of the two laser scanning systems 303;

[0061] A water-cooled printing platform 403 is provided below the two powder feeders 302;

[0062] And further includes a powder spreading adjusting mechanism 4. The powder spreading adjusting mechanism 4 is arranged inside the main frame 1. The powder spreading adjusting mechanism 4 cooperates with the two powder feeders 302 to adjust the thickness of the titanium alloy powder;

[0063] An angle adjusting mechanism is arranged below the powder feeder 302. The angle adjusting mechanism is used to adjust the angle of the powder feeder 302.

[0064] In a specific embodiment of the present invention, the main frame 1 is the core support structure of the entire 3D printing device, providing a stable installation foundation for other components such as the second support plates 8, the powder storage tank 3, the powder feeder 302, the laser scanning system 303, etc. Its strong material and reasonable structural design can effectively reduce the influence of factors such as vibration during the printing process on the printing accuracy, ensure the stable operation of the entire printing device, and create a reliable space environment for 3D printing work.

[0065] The second support plates 8 are fixedly connected to the top end of the main frame 1. The main function is to support the powder storage tank 3, ensure that the powder storage tank 3 maintains a stable position during the printing process, and will not shake due to operations such as stirring and powder feeding, providing stable conditions for the normal operation of the spiral stirring device 301 and the powder feeder 302 inside the powder storage tank 3.

[0066] The powder storage tank 3, as a container for storing titanium alloy powder, is the supply source of the printing material. The spiral stirring device 301 rotatably connected inside it continuously stirs to prevent the titanium alloy powder from caking, maintaining the loose and uniform state of the powder, ensuring that the powder feeder 302 can stably and uniformly obtain the powder, thereby providing continuous and quality-stable raw materials for the subsequent printing process.

[0067] The spiral stirring device 301 is installed inside the powder storage tank 3. Through its own rotational movement, it stirs the titanium alloy powder in the tank. During the stirring process, it breaks the possible caking of the powder, keeping good dispersibility and fluidity between the powder particles, which helps the powder feeder 302 accurately control the powder feeding amount, ensures that the amount of powder delivered to the printing area each time is consistent, and further guarantees the uniformity of the printing layer and the printing accuracy.

[0068] The powder feeder 302 is installed on the inner wall of the top of the main frame 1 and is connected to the powder storage tank 3. It is a key component connecting the powder storage tank 3 and the printing area. Its function is to accurately transport the evenly stirred titanium alloy powder in the powder storage tank 3 to the printing area according to the requirements of the printing process. By precisely controlling the powder feeding amount, it ensures that the amount of powder required for each layer of printing is accurate, providing guarantee for achieving high-quality 3D printing. And it cooperates with the powder spreading adjustment mechanism 4 to jointly complete the powder transportation and spreading work.

[0069] The laser scanning system 303 is located at the bottom end of the main frame 1 and internally includes a high-power fiber laser, a scanning galvanometer, and a focusing lens. The high-power fiber laser provides the energy source for melting the titanium alloy powder; the scanning galvanometer, under the control of the computer control system, precisely controls the scanning path of the laser beam, enabling the laser to scan the powder along the predetermined model trajectory; the focusing lens focuses the laser beam onto the printing plane, increasing the laser energy density to ensure that the titanium alloy powder can be fully melted and solidified, thereby realizing the layer-by-layer stacking and printing of the solid structure of the titanium alloy water bottle holder for bicycles.

[0070] The water-cooled printing platform 403 is arranged on the lower side of the two powder feeders 302. Its water-cooled structure can quickly remove the heat generated during the printing process, effectively reducing the temperature of the printing platform, avoiding problems such as deformation and warping of the printed parts caused by excessive temperature, and thus ensuring the dimensional accuracy and shape accuracy of the printed parts. The special anti-adhesion coating on the platform surface facilitates the smooth demolding of the product from the platform after printing, reducing damage to the printed parts, and improving production efficiency and product quality.

[0071] The powder spreading adjustment mechanism 4 is installed in the main frame 1 and works in coordination with the two powder feeders 302. This mechanism precisely controls the spreading thickness of the titanium alloy powder by adjusting relevant components to ensure that the powder thickness of each layer laid meets the requirements of the printing process. Precise control of the powder thickness can ensure the bonding strength between printing layers and avoid printing defects such as poor interlayer bonding and uneven surface, which plays an important role in improving the overall quality of the printed product.

[0072] The angle adjustment mechanism is located on the lower side of the powder feeder 302, and its main function is to adjust the angle of the powder feeder 302. When printing bicycle titanium alloy water bottle holder parts with complex shapes or special angle requirements, by adjusting the angle of the powder feeder 302, the titanium alloy powder can be transported to the printing area in a suitable direction and angle, ensuring that the powder can accurately cover the positions to be printed, improving the powder utilization rate, reducing powder waste, and at the same time helping to improve the printing accuracy and quality, making the printed product more in line with the design requirements.

[0073] For details, please refer to Figures 1 - 5 , the powder spreading adjustment mechanism 4 includes:

[0074] The concave connecting frame 401, there are two concave connecting frames 401, and the two concave connecting frames 401 are respectively fixedly connected to the inner walls on both sides of the main frame 1;

[0075] The limiting rod 405, the limiting rod 405 is fixedly connected to the front and rear inner walls of one of the concave connecting frames 401 on the left side;

[0076] The first lead screw 408, the first lead screw 408 is rotatably connected to the front and rear inner walls of the other concave connecting frame 401;

[0077] The positioning disk 409, the positioning disk 409 is fixedly connected to the front end of one of the concave connecting frames 401, and the output end of the positioning disk 409 is fixedly connected to one end of the first lead screw 408;

[0078] The electric powder spreading roller 407, one end of the electric powder spreading roller 407 is slidably connected to the circumferential surface of the limiting rod 405, and the other end of the electric powder spreading roller 407 is sleeved on the outer surface of the first lead screw 408;

[0079] The first nut 4015, the first nut 4015 is fixedly connected to one end of the electric powder spreading roller 407, and the first nut 4015 is threadedly connected to the circumferential surface of the first lead screw 408;

[0080] The first support plate 402, the first support plate 402 is slidably connected to the inner walls on both sides of the main frame 1, and a fixed frame 404 is fixedly connected to the bottom end of the first support plate 402;

[0081] The moving plates 702, there are four moving plates 702, and the four moving plates 702 are respectively attached to both ends of the first support plate 402;

[0082] The height adjustment assembly, the height adjustment is arranged in the main frame 1, and the height adjustment is used to adjust the height of the first support plate 402.

[0083] In this embodiment: When performing powder spreading operation, the powder feeder 302 first transports the titanium alloy powder above the water-cooled printing platform 403. At this time, the positioning disk 409 starts, and drives the first lead screw 408 to rotate through the output end. Since the first nut 4015 is threadedly connected to the first lead screw 408 and fixed on the electric powder spreading roller 407, the rotation of the first lead screw 408 causes the first nut 4015 to drive the electric powder spreading roller 407 to move along the axial direction of the first lead screw 408; at the same time, one end of the electro-controlled magnetic universal sleeve suction cup 4016 slides on the limiting rod 405, and the other end moves along with the rotation of the lead screw on the outer surface of the first lead screw 408.

[0084] During the movement of the electric powder spreading roller 407, the powder is evenly spread on the water-cooled printing platform 403. By controlling the rotation angle and speed of the positioning disk 409, the moving distance and speed of the electric powder spreading roller 407 can be accurately controlled, realizing precise adjustment of the powder spreading position and powder spreading amount. If it is necessary to fix small components or clean up excess powder during the printing process, the electro-controlled magnetic universal sleeve suction cup 4016 can be energized to generate magnetism, adsorb relevant objects, and use its universal sleeve structure to flexibly adjust the angle and position to complete the adsorption, handling or fixing operations.

[0085] For details, please refer to Figures 1 - 4 , the height adjustment assembly includes:

[0086] Two second lead screws 701, which are respectively threadedly connected to the upper and lower inner walls of the main frame 1.

[0087] Two second nuts 703, which are respectively threadedly connected to the circumferential surfaces of the two second lead screws 701.

[0088] Four clamping blocks 704, which are respectively movably clamped in the first support plate 402 and the four moving plates 702.

[0089] Positioning rods, which are respectively slidably connected in two of the front-side moving plates 702.

[0090] A second motor 7, which is fixedly connected to the top of the main frame 1, and the output end of the second motor 7 is fixedly connected to the top of one of the second lead screws 701.

[0091] Two third transmission gears 11, which are respectively fixedly connected to the circumferential surfaces of the two second lead screws 701.

[0092] A toothed belt 12, which is in transmission engagement with the circumferential surfaces of the two third transmission gears 11.

[0093] In this embodiment: When it is necessary to adjust the powder spreading thickness, the second motor 7 is started to drive the second lead screw 701 connected thereto to rotate. The third transmission gear 11 on this second lead screw 701 drives another third transmission gear 11 to rotate synchronously through the toothed belt 12, so that the two second lead screws 701 maintain the same rotation direction and speed.

[0094] As the second lead screw 701 rotates, the second nut 703 that is in threaded engagement with it moves linearly along the axial direction of the lead screw. The second nut 703 drives the first support plate 402 and the moving plate 702 to lift and lower synchronously through the block 704. The moving plate 702 only moves vertically under the restraint of the positioning rod, ensuring the stable lifting and lowering of the first support plate 402.

[0095] By controlling the rotation direction and angle of the second motor 7, the lifting height of the first support plate 402 can be precisely adjusted, and then the distance between the fixing frame 404 and the water-cooled printing platform 403 can be adjusted, realizing precise control of the laying thickness of the titanium alloy powder. For example, when it is necessary to increase the powder laying thickness, the second motor 7 rotates forward to make the first support plate 402 rise; otherwise, it rotates in reverse and descends.

[0096] Specifically, please refer to Figure 2 , the angle adjustment mechanism includes:

[0097] The fixed plate 4014, and the fixed plate 4014 is fixedly connected to the front and rear inner walls of the fixing frame 404;

[0098] The concave arc plate 4010, and the concave arc plate 4010 is fixedly connected to the bottom end of the water-cooled printing platform 403;

[0099] The cam sleeve disc 4013, and the cam sleeve disc 4013 is rotatably connected inside the fixed plate 4014, and the cam sleeve disc 4013 jacks up the bottom of the concave arc plate 4010;

[0100] The second transmission gear 4012, and the second transmission gear 4012 is fixedly connected to the bottom end of the cam sleeve disc 4013;

[0101] The first motor 406, and the first motor 406 is fixedly connected to the bottom end of the fixing frame 404;

[0102] The first transmission gear 4011, and the first transmission gear 4011 is fixedly connected to the output end of the first motor 406, and the first transmission gear 4011 meshes with the second transmission gear 4012;

[0103] The electro-controlled magnetic universal sleeve suction cup 4016, and the electro-controlled magnetic universal sleeve suction cup 4016 is installed at the close ends of the water-cooled printing platform 403 and the fixing frame 404.

[0104] In this embodiment: when it is necessary to adjust the angle of the water-cooled printing platform 403, the first motor 406 is started to drive the first transmission gear 4011 to rotate. The first transmission gear 4011 drives the second transmission gear 4012 through meshing, so that the cam sleeve disc 4013 rotates inside the fixed plate 4014.

[0105] Due to the eccentric design of the cam sleeve 4013, the contact point between its outer edge and the concave arc disc 4010 changes during rotation, thereby lifting the concave arc disc 4010 and causing the water-cooled printing platform 403 to angularly deflect around the fulcrum. By precisely controlling the rotation direction and angle of the first motor 406, the tilt angle of the water-cooled printing platform 403 can be digitally adjusted.

[0106] During the angle adjustment process, the electrically controlled magnetic universal sleeve suction cup 4016 is powered off to release the adsorption state, allowing the platform to rotate freely; after the adjustment is in place, the suction cup is powered on to generate magnetic force, firmly fixing the water-cooled printing platform 403 at the new angle position to ensure stability during the printing process.

[0107] When it is necessary to print a water bottle holder bracket with an inclined structure, the system calculates the required inclination angle and controls the first motor 406 to rotate the corresponding angle. The water-cooled printing platform 403 is adjusted to the preset angle through the cam mechanism. At the same time, the electrically controlled magnetic universal sleeve suction cup 4016 is locked in position, so that the laser scanning system 303 can accurately print on the inclined plane, avoiding powder flow problems caused by gravity and improving the printing accuracy of complex structures.

[0108] For details, please refer to Figures 1 - 5 The upper inner wall of the main frame 1 is fixedly connected with an inert gas device 5, which consists of an inert gas storage tank, a gas delivery pipeline and a gas circulation purification device.

[0109] In this embodiment: Coordination with the printing process: Before printing, the inert gas storage tank injects inert gas such as argon or nitrogen into the printing area through the gas delivery pipeline to reduce the oxygen concentration and prevent the titanium alloy powder from oxidizing at high temperature.

[0110] Linkage with temperature sensor 304: When temperature sensor 304 detects an abnormal increase in temperature in the printing area, the gas circulation purification device starts to accelerate the flow and filtration of the inert gas, remove heat and remove metal vapor and smoke particles generated during the printing process, thereby ensuring the purity of the printing environment.

[0111] Collaboration with the protective cover 2: The protective cover 2 seals the main frame 1 to prevent leakage of inert gas, and cooperates with the gas circulation purification device to form a closed-loop system, reducing inert gas consumption and improving purification efficiency.

[0112] For details, please refer to Figures 1 - 4 A protective cover 2 is installed on the outer surface of the main frame 1, and a concave plate 10 is fixedly connected to the top of the main frame 1. The concave plate 10 is sleeved on the outer surface of the powder storage tank 3.

[0113] In this embodiment: The protective cover 2 is made of double-layer transparent acrylic material, which is convenient for observing the printing process and can effectively isolate external dust and moisture. The concave plate 10 is closely attached to the powder storage tank 3 through a silicone rubber seal ring, preventing powder leakage and enhancing the overall sealing performance.

[0114] Specifically, please refer to Figures 1 - 5 , at the four corners of the inner wall of the top of the main body frame 1, a temperature sensor 304 is fixedly connected.

[0115] In this embodiment: The sensor transmits the temperature data to the PLC control system. When the temperature in a certain area exceeds the set threshold, the system automatically adjusts the laser power or scanning speed and starts the circulation purification device of the inert gas device 5 to enhance heat dissipation.

[0116] Specifically, please refer to Figures 1 - 5 , a plurality of third support plates 9 are fixedly connected to the bottom end of the main body frame 1.

[0117] In this embodiment: The third support plate 9 is made of high-strength aluminum alloy profiles and is connected to the main body frame 1 by bolts to disperse the weight of the equipment and ensure the stable placement of the equipment on the workbench. A shock-absorbing rubber pad is installed at the bottom of each support plate to reduce the noise and displacement generated by vibration during the printing process and improve the printing accuracy.

[0118] Specifically, please refer to Figures 1 - 5 , a closed cover is clamped at the feed inlet of the powder storage tank 3, a computer control system is built in the main body frame 1, and protective plates 6 are fixedly connected to the inner walls on both sides of the main body frame 1.

[0119] In this embodiment: The closed cover adopts a silicone rubber seal ring and a snap-on design, which is closely attached to the feed inlet of the powder storage tank 3 to prevent external moisture and dust from entering and maintain the dryness and purity of the titanium alloy powder. When powder needs to be added, just press the snap to quickly open it, and the operation is simple.

[0120] Working principle and usage process of the present invention: Aiming at the problem that titanium alloy powder is prone to caking in the powder storage tank 3, resulting in uneven powder feeding, the spiral stirring device 301 in the powder storage tank 3 rotates throughout the printing process, breaking up the powder caking through the spiral blades. The powder feeder 302 accurately feeds powder quantitatively according to the instructions of the computer control system through the internal metering mechanism. Aiming at the problem of inaccurate control of the powder spreading thickness, before printing, the positioning disk 409 drives the first lead screw 408 to drive the electric powder spreading roller 407 to move to the initial position, and the second motor 7 drives the height adjustment components such as the second lead screw 701 and the toothed belt 12 to adjust the height of the first support plate 402 to set the powder spreading thickness. During printing, the electric powder spreading roller 407 moves horizontally to spread powder, and the system synchronously controls its rotation speed and moving speed. When the temperature sensor 304 detects abnormal temperature, the powder spreading speed is adjusted or the water-cooled printing platform 403 is started to cool down. Aiming at the problem of inconvenient adjustment of the powder feeder 302 during printing at complex angles, the computer control system calculates the rotation angle of the cam sleeve disk 4013 according to the inclination angle of the model. The first motor 406 drives the first transmission gear 4011 and the second transmission gear 4012 to drive the cam sleeve disk 4013 to rotate, lifting the concave arc disk 4010 to tilt the water-cooled printing platform 403 to the target angle. During adjustment, the electro-controlled magnetic universal sleeve suction cup 4016 releases adsorption, and after adjustment, it is electrified to lock the position. The laser scanning system 303 and the powder feeder 302 synchronously adjust the laser path and the powder outlet direction. Aiming at the problems of oxidation and purification of the printing environment, before printing, the inert gas device 5 injects inert gas into the main frame 1 to reduce the oxygen concentration. During printing, the temperature sensor 304 is linked with the gas circulation and purification device, and the protective cover 2 and the concave plate 10 form a sealed space to maintain the stability of the inert gas environment. The overall process is to import the model into the computer control system and set parameters, and then layer-by-layer print through powder feeding, powder spreading, angle adjustment if necessary, laser scanning and cladding, water-cooled cooling, and inert gas circulation and purification. After each layer is completed, the powder spreading quality is monitored through the built-in camera.

[0121] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A 3D printing device for a titanium alloy water bottle holder of a bicycle, characterized in that Including: The main frame (1), at the top of the main frame (1), two second support plates (8) are fixedly connected. At the closer ends of the two second support plates (8), a powder storage tank (3) is installed. Inside the powder storage tank (3), a spiral stirring device (301) is rotatably connected. At the top inner wall of the main frame (1), a powder feeder (302) is installed. The powder feeder (302) and the powder storage tank (3) are in communication. At the bottom end of the main frame (1), two laser scanning systems (303) are installed. In each of the two laser scanning systems (303), a high-power fiber laser, a scanning galvanometer, and a focusing lens are provided; A water-cooled printing platform (403), and the water-cooled printing platform (403) is arranged below the two powder feeders (302); And further including a powder spreading adjusting mechanism (4), the powder spreading adjusting mechanism (4) is arranged inside the main frame (1), and the powder spreading adjusting mechanism (4) cooperates with the two powder feeders (302) to adjust the thickness of the titanium alloy powder; An angle adjusting mechanism, the angle adjusting mechanism is arranged below the powder feeder (302), and the angle adjusting mechanism is used to adjust the angle of the powder feeder (302).

2. The 3D printing device for a titanium alloy water bottle holder of a bicycle according to claim 1, wherein: The powder spreading adjusting mechanism (4) includes: Concave connecting frames (401), there are two concave connecting frames (401), and the two concave connecting frames (401) are respectively fixedly connected to the inner walls on both sides of the main frame (1); A limiting rod (405), the limiting rod (405) is fixedly connected to the front and rear inner walls of one of the concave connecting frames (401) on the left side; A first lead screw (408), the first lead screw (408) is rotatably connected to the front and rear inner walls of the other concave connecting frame (401); A positioning disk (409), the positioning disk (409) is fixedly connected to the front end of one of the concave connecting frames (401), and the output end of the positioning disk (409) is fixedly connected to one end of the first lead screw (408); An electric powder spreading roller (407), one end of the electric powder spreading roller (407) is slidably connected to the circumferential surface of the limiting rod (405), and the other end of the electric powder spreading roller (407) is sleeved on the outer surface of the first lead screw (408); A first nut (4015), the first nut (4015) is fixedly connected to one end of the electric powder spreading roller (407), and the first nut (4015) is threadedly connected to the circumferential surface of the first lead screw (408); A first support plate (402), the first support plate (402) is slidably connected to the inner walls on both sides of the main frame (1), and a fixed frame (404) is fixedly connected to the bottom end of the first support plate (402); Moving plates (702), there are four moving plates (702), and the four moving plates (702) are respectively attached to both ends of the first support plate (402); A height adjusting component, the height adjusting is arranged inside the main frame (1), and the height adjusting is used to adjust the height of the first support plate (402).

3. The 3D printing device for a titanium alloy water bottle holder of a bicycle according to claim 2, wherein: The height adjusting component includes: The second lead screw (701), there are two of the second lead screws (701), and the two second lead screws (701) are respectively threadedly connected to the upper and lower inner walls of the main body frame (1); The second nuts (703), there are two of the second nuts (703), and the two second nuts (703) are respectively threadedly connected to the circumferential surfaces of the two second lead screws (701); The clamping blocks (704), there are four of the clamping blocks (704), and the four clamping blocks (704) are respectively movably clamped in the first support plate (402) and the four moving plates (702); The positioning rods, the positioning rods are respectively slidably connected in two of the front-side moving plates (702); The second motor (7), the second motor (7) is fixedly connected to the top end of the main body frame (1), and the output end of the second motor (7) is fixedly connected to the top end of one of the second lead screws (701); The third transmission gears (11), there are two of the third transmission gears (11), and the two third transmission gears (11) are respectively fixedly connected to the circumferential surfaces of the two second lead screws (701); The toothed belt (12), the toothed belt (12) is in transmission engagement with the circumferential surfaces of the two third transmission gears (11).

4. A 3D printing device for a titanium alloy water bottle holder of a bicycle according to claim 3, characterized in that: The angle adjustment mechanism includes: The fixed plate (4014), the fixed plate (4014) is fixedly connected to the front and rear inner walls of the fixed frame (404); The concave arc plate (4010), the concave arc plate (4010) is fixedly connected to the bottom end of the water-cooled printing platform (403); The cam sleeve plate (4013), the cam sleeve plate (4013) is rotatably connected in the fixed plate (4014), and the cam sleeve plate (4013) jacks up the bottom of the concave arc plate (4010); The second transmission gear (4012), the second transmission gear (4012) is fixedly connected to the bottom end of the cam sleeve plate (4013); The first motor (406), the first motor (406) is fixedly connected to the bottom end of the fixed frame (404); The first transmission gear (4011), the first transmission gear (4011) is fixedly connected to the output end of the first motor (406), and the first transmission gear (4011) meshes with the second transmission gear (4012); The electronically controlled magnetic universal sleeve suction cup (4016), the electronically controlled magnetic universal sleeve suction cup (4016) is installed at the adjacent ends of the water-cooled printing platform (403) and the fixed frame (404).

5. A 3D printing device for a titanium alloy water bottle holder of a bicycle according to claim 4, characterized in that: The upper inner wall of the main body frame (1) is fixedly connected with an inert gas device (5), and the inert gas device (5) is composed of an inert gas storage tank, a gas transmission pipeline and a gas circulation purification device.

6. The 3D printing device for a titanium alloy water bottle holder of a bicycle according to claim 5, characterized in that: The outer surface of the main body frame (1) is installed with a protective cover (2), the top end of the main body frame (1) is fixedly connected with a concave plate (10), and the concave plate (10) is sleeved on the outer surface of the powder storage tank (3).

7. A 3D printing device for a titanium alloy water bottle holder of a bicycle according to claim 6, characterized in that: The four corners of the top inner wall of the main body frame (1) are fixedly connected with temperature sensors (304).

8. A 3D printing device for a titanium alloy water bottle holder of a bicycle according to claim 7, characterized in that: The bottom end of the main body frame (1) is fixedly connected with a plurality of third support plates (9).

9. A 3D printing device for a titanium alloy water bottle holder of a bicycle according to claim 8, characterized in that: A closed cover is clamped at the feed inlet of the powder storage tank (3). A computer control system is built in the main body frame (1). Protective plates (6) are fixedly connected to the inner walls on both sides of the main body frame (1).

10. A 3D printing device and printing method for a bicycle titanium alloy water bottle holder according to claim 9, applied to a 3D printing device for a bicycle titanium alloy water bottle holder described in claim 9, characterized in that, It includes the following steps: S1. After the equipment is started, first fix the main body frame (1) and confirm that components such as the powder storage tank (3) and the water-cooled printing platform (403) are installed in place. Enclose the main body frame (1) with the protective cover (2) to form a printing space. Then start the inert gas equipment (5) to inject inert gas into the main body frame (1) to reduce the oxygen concentration to a safe range to prevent the oxidation of titanium alloy powder. Next, import the three-dimensional model of the kettle rack into the computer control system, and adjust the height of the first support plate (402) through the height adjustment component (the second motor (7), the second lead screw (701), etc.) to set the powder spreading thickness. The spiral stirring equipment (301) in the powder storage tank (3) rotates continuously to prevent the titanium alloy powder from caking. The powder feeder (302) takes powder from the powder storage tank (3) according to the system instruction and transports it above the water-cooled printing platform (403). The positioning disk (409) in the powder spreading adjustment mechanism (4) drives the first lead screw (408) to rotate, driving the electric powder spreading roller (407) to move horizontally to evenly spread the powder on the platform surface; S2. When printing complex-angle or inclined parts, the first motor (406) in the angle adjustment mechanism drives the cam sleeve disc (4013) to rotate through the first transmission gear (4011) and the second transmission gear (4012), jacking up the concave arc disc (4010) to tilt the water-cooled printing platform (403) to the target angle, and the electric control magnetic universal sleeve suction cup (4016) locks the position of the platform. The laser scanning system (303) emits laser and scans the powder spreading layer according to the model slicing trajectory, melting the titanium alloy powder layer by layer to stack and form. During the printing process, the inert gas equipment (5) continuously circulates and purifies, and the temperature sensor (304) monitors the temperature in real time and makes linkage adjustments. After each layer of printing is completed until the model is formed, after the printing is completed, turn off the equipment and wait for the platform to cool down, take out the printed part through the electric control magnetic universal sleeve suction cup (4016), and perform post-treatments such as sandblasting and heat treatment. Finally, clean the residual powder on components such as the powder storage tank (3) and the electric powder spreading roller (407), and maintain the equipment to ensure normal operation next time.

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