Medical martensitic material rust-proof treatment equipment and method

Abstract

This invention discloses a rust-preventive treatment device and method for medical martensitic materials, belonging to the field of rust prevention technology. It includes: an L-shaped fixing frame; a passivation tank on one side of the bottom of the L-shaped fixing frame; a cleaning component in the middle of the bottom of the L-shaped fixing frame; a drying component on the other side of the bottom of the L-shaped fixing frame; and a gantry frame above the passivation tank via an adjusting position component. After the martensitic stainless steel rod is fixed by the clamping component, the adjusting position component lowers it into the passivation tank. A rotation and revolution component simultaneously drives the stainless steel rod; the rotation is the secondary shaft driving the U-shaped frame to rotate, and the revolution is the connecting cylinder driving the entire assembly to rotate around the main shaft. A vibration component, through a spring and a sliding plate, causes the rod to vibrate slightly. The rotation and revolution ensure that all areas of the rod surface can fully contact the passivation liquid, avoiding insufficient local passivation. The slight vibration breaks the liquid film tension on the rod surface, accelerating the passivation reaction rate.

Description

Technical Field

[0001] This invention relates to a rust prevention treatment device and method for medical martensitic materials, belonging to the field of rust prevention treatment technology. Background Technology

[0002] Medical-grade martensitic stainless steel bars refer to stainless steel bars with martensitic structure. Due to their good mechanical properties, corrosion resistance and biocompatibility, they are widely used in the field of medical device manufacturing. Martensitic stainless steel can obtain high strength and hardness through heat treatment. After quenching and tempering, it can meet the strength requirements of medical devices for cutting, puncturing and clamping operations during use.

[0003] Although medical martensitic stainless steel bars contain a certain amount of chromium, which can form a passivation film to resist corrosion, they still require special rust prevention. The core reason is that they are closely related to their material properties, usage environment and medical safety requirements. In the medical field, stainless steel bars are usually immersed in concentrated nitric acid (or nitric acid + chromate solution) for passivation. The passivation film is thickened through oxidation reaction, which enhances its corrosion resistance.

[0004] Existing technologies for passivating and rust-preventing martensitic stainless steel bars have some shortcomings: 1. Traditional equipment, when passivating medical martensitic stainless steel bars, often only allows for immersion in one direction or simple flipping, failing to ensure sufficient contact between the stainless steel bar and the passivation solution (such as concentrated nitric acid or nitric acid + chromate solution). Because the surface morphology of martensitic stainless steel bars may contain fine lines or grooves, uneven passivation film thickness and incomplete coverage are prone to occur under fixed postures, leading to a decrease in subsequent corrosion resistance and making it difficult to meet the stringent rust-preventing requirements of the medical field. 2. In existing technologies, after passivation and cleaning, air drying or hot air drying in a fixed direction is usually relied upon. However, the moisture on the surface of the stainless steel bar is difficult to evaporate quickly. This not only prolongs the drying time and reduces processing efficiency, but may also cause short-term corrosion due to residual moisture, affecting the material's service life and safety. Summary of the Invention To solve the above-mentioned technical problems, the present invention provides a medical martensitic material rust prevention treatment equipment and method.

[0005] The technical solution adopted by this invention to solve its technical problem is: A medical martensitic material rust prevention treatment device and method includes: an L-shaped fixing frame, a passivation groove on one side of the bottom of the L-shaped fixing frame, a cleaning component at the middle of the bottom of the L-shaped fixing frame, a drying component on the other side of the bottom of the L-shaped fixing frame, a gantry frame above the passivation groove via an adjusting position component, a connecting frame on the gantry frame via a vibration component, a connecting seat on the connecting frame via an erecting component, six U-shaped frames on one side of the connecting seat, a revolution and rotation component on the connecting seat for rotating and revolving the six U-shaped frames, a clamping component for clamping martensitic stainless steel rods on the U-shaped frames, and a PLC controller on one side of the L-shaped fixing frame.

[0006] Preferably, the cleaning assembly includes a water pipe, which is fixedly installed at the middle of one end of an L-shaped bracket. One end of the water pipe is provided with several nozzles. A water tank is installed on the L-shaped bracket. The water tank and the water pipe are connected by a water pump. A cleaning trough is provided at the middle of the bottom of the L-shaped bracket.

[0007] Preferably, the drying assembly includes an air pipe, which is vertically installed at the end of the L-shaped bracket away from the passivation tank. One end of the air pipe is provided with several air nozzles. A hot air blower connected to the air pipe is installed on the L-shaped bracket. A water collection tank is provided on the bottom side of the L-shaped bracket away from the passivation tank.

[0008] Preferably, the position adjustment component includes a long groove, which is formed on the top of the L-shaped fixing frame. A lead screw is rotatably installed in the long groove. An L-shaped lead screw seat is provided on the outer side wall of the lead screw through a thread. An electric cylinder is installed on the top of the L-shaped lead screw seat away from the long groove. The output end of the electric cylinder is fixedly installed at the middle of the top of the gantry frame. Several rollers that are tactilely connected to the top of the L-shaped fixing frame are installed on the bottom of the electric cylinder.

[0009] Preferably, the vibration assembly includes two connecting slots, which are respectively opened below both ends of the gantry frame. Two vertical rods are fixedly installed in the connecting slots, and a sliding plate is slidably installed between the two vertical rods. The upper and lower ends of the sliding plate are connected to the gantry frame by springs. The two sliding plates are fixedly installed at one end close to each other and above both ends of the connecting frame. A vibrator is provided at the top center of the connecting frame.

[0010] Preferably, the erecting assembly includes two connecting shafts, which are respectively fixed at both ends of the connecting seat, and are rotatably mounted at both ends of the connecting frame. One end of one connecting shaft is connected to the output end of the drive motor.

[0011] Preferably, the revolution and rotation assembly includes a main shaft, which is rotatably mounted in the middle of the connecting seat. A connecting cylinder is mounted on one side of the main shaft. A through groove is opened on the main shaft, and a servo motor is installed in the through groove. The output end of the servo motor passes through the connecting cylinder and is equipped with a main gear. Six secondary shafts are rotatably mounted on the connecting cylinder. Secondary gears that mesh with the main gear are installed on the outer side of the secondary shafts. One side of each of the six secondary shafts is fixedly mounted to one side of each of the six U-shaped frames. A worm gear is mounted on the other side of the main shaft, and a worm that meshes with the worm gear is rotatably mounted on the connecting seat.

[0012] Preferably, the clamping assembly includes a bolt, which is rotatably mounted on the side of the U-shaped frame away from the connecting cylinder via a thread. A movable disk is rotatably mounted on one side of the bolt via a bearing. A guide rod that is slidably connected to the U-shaped frame is mounted on the movable disk. A fixed disk is fixedly mounted on the inner wall of the side of the U-shaped frame away from the movable disk.

[0013] Preferably, in step one: place the martensitic stainless steel rod between the moving plate and the fixed plate, and then rotate the bolt to bring the moving plate closer to the fixed plate to clamp and fix the martensitic stainless steel rod. After placing it in the six U-shaped frames, the electric cylinder drives the gantry frame to descend, which in turn drives the connecting frame to descend the connecting seat, so that the martensitic stainless steel rod can descend into the passivation tank for passivation. Step 2: During the passivation process, the worm gear drives the worm wheel to rotate in both directions, causing the main shaft to rotate in both directions. This causes the connecting cylinder to rotate, which in turn causes the six martensitic stainless steel bars to revolve in both directions within the passivation groove. The servo motor drives the main gear to rotate, which in turn drives the secondary shaft to rotate, causing the U-shaped frame to rotate. This causes the martensitic stainless steel bars to rotate within the passivation groove. This rotation and revolution improve the passivation effect. At the same time, the vibrator is activated. The slide plate slides on the vertical rod and compresses the spring, causing the connecting frame to vibrate slightly up and down. This slight vibration of the martensitic stainless steel bars further improves the passivation effect. Step 3: After passivation, the electric cylinder drives the connecting seat to rise, causing the martensitic stainless steel rod to leave the passivation tank. Then, the lead screw rotates, moving the L-shaped lead seat above the cleaning tank. The electric cylinder then drives the martensitic stainless steel rod into the cleaning tank for cleaning. During the cleaning process, the martensitic stainless steel rod also rotates, revolves, and vibrates to improve the cleaning effect. After cleaning for a certain period of time, the electric cylinder drives the martensitic stainless steel rod to rise until it is parallel to the nozzle. The rotation and revolution of the martensitic stainless steel rod then stop vibrating. Finally, the nozzle rinses the martensitic stainless steel rod one last time. Step 4: After cleaning, the electric cylinder drives the connecting seat to rise, causing the martensitic stainless steel rod to leave the passivation tank. Then, the lead screw rotates, moving the L-shaped lead seat above the water collection tank. The drive motor drives the connecting shaft to rotate 90 degrees, making the martensitic stainless steel rod vertical. Hot air is sprayed from the air nozzle to dry the martensitic stainless steel rod. The martensitic stainless steel rod also rotates and revolves, vibrating. Through vibration, some moisture can be shaken off, which can reduce drying time and improve drying efficiency.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. After the martensitic stainless steel rod is fixed by the clamping component, the position adjustment component drives it to descend into the passivation tank; the revolution and rotation components drive the stainless steel rod to rotate simultaneously. The rotation is the secondary shaft driving the U-shaped frame to rotate, and the revolution is the connecting cylinder driving the whole to rotate around the main shaft. The vibration component makes the rod vibrate slightly through the cooperation of the spring and the sliding plate. The rotation + revolution ensures that all areas of the rod surface can fully contact the passivation liquid, avoiding insufficient local passivation; the slight vibration can break the liquid film tension on the surface of the rod, accelerate the passivation reaction rate, make the passivation film thickness more uniform, and significantly enhance the rust prevention ability; 2. After cleaning, the position adjustment component moves the rod to the top of the water collection tank, and the upright component drives the rod to rotate 90° to a vertical position; the drying component sprays hot air through the nozzle, while the rod maintains rotation + revolution + vibration. The vertical position combined with vibration can quickly shake off surface water droplets and reduce water residue; rotation + revolution ensures that the hot air evenly covers the surface of the rod, accelerating moisture evaporation. Compared with traditional static drying, this method is more efficient and avoids short-term corrosion caused by incomplete drying. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the cleaning component structure of the present invention; Figure 3 This is a schematic diagram of the drying component structure of the present invention; Figure 4 This is a schematic diagram of the position adjustment component structure of the present invention; Figure 5 This is a schematic diagram of the vibration component structure of the present invention; Figure 6 This is a schematic diagram of the revolution and rotation component structure of the present invention; Figure 7 This is a schematic diagram of the revolution and rotation component structure of the present invention; Figure 8 This is a schematic diagram of the clamping component structure of the present invention.

[0017] In the diagram: 1. L-shaped fixing frame; 2. Passivation tank; 3. Cleaning assembly; 4. Drying assembly; 5. Position adjustment assembly; 6. Gantry frame; 7. Vibration assembly; 8. Connecting frame; 9. Erecting assembly; 10. Connecting seat; 11. U-shaped frame; 12. Revolution and rotation assembly; 13. Clamping assembly; 14. PLC controller; 301. Water pipe; 302. Nozzle; 303. Water tank; 304. Water pump; 305. Cleaning tank; 401. Air pipe; 402. Air nozzle; 403. Hot air blower; 404. Water collection tank; 501. Long tank; 5 02. Lead screw; 503. L-shaped lead screw seat; 504. Electric cylinder; 505. Roller; 701. Connecting groove; 702. Vertical rod; 703. Slide plate; 704. Spring; 705. Vibrator; 901. Connecting shaft; 902. Drive motor; 121. Main shaft; 122. Connecting cylinder; 123. Through groove; 124. Servo motor; 125. Main gear; 126. Countershaft; 127. Counter gear; 128. Worm gear; 129. Worm; 131. Bolt; 132. Moving plate; 133. Guide rod; 134. Fixed plate. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figure 1-8 The present invention provides a technical solution: A medical martensitic material rust prevention treatment device and method includes: an L-shaped fixing frame 1, a passivation groove 2 on one side of the bottom of the L-shaped fixing frame 1, a cleaning component 3 at the middle of the bottom of the L-shaped fixing frame 1, a drying component 4 on the other side of the bottom of the L-shaped fixing frame 1, a gantry frame 6 above the passivation groove 2 via an adjustment position component 5, a connecting frame 8 on the gantry frame 6 via a vibration component 7, a connecting seat 10 on the connecting frame 8 via an erecting component 9, six U-shaped frames 11 on one side of the connecting seat 10, a revolution and rotation component 12 on the connecting seat 10 for rotating and revolving the six U-shaped frames 11, a clamping component 13 for clamping martensitic stainless steel rods on the U-shaped frames 11, and a PLC controller 14 on one side of the L-shaped fixing frame 1.

[0020] Furthermore, the PLC controller 14 is electrically connected to various power components of the equipment (such as the lead screw drive motor and electric cylinder of the position adjustment component, the vibrator of the vibration component, the drive motor of the erection component, the servo motor and worm drive motor of the revolution and rotation component, etc.), and can preset and store the processing parameters of different specifications of martensitic stainless steel bars (such as passivation time, cleaning water pressure, drying temperature, revolution and rotation speed, vibration frequency, etc.).

[0021] In this embodiment: the cleaning component 3 includes a water pipe 301, which is fixedly installed at the middle of one end of the L-shaped bracket 1. A number of nozzles 302 are provided at one end of the water pipe 301. A water tank 303 is installed on the L-shaped bracket 1. The water tank 303 and the water pipe 301 are connected by a water pump 304. A cleaning tank 305 is provided at the middle of the bottom of the L-shaped bracket 1.

[0022] Furthermore, the bottom of the cleaning tank 305 is designed to be inclined, which facilitates the rapid collection and discharge of cleaning wastewater and avoids secondary pollution of the martensitic stainless steel bars by water accumulation in the tank; a filter device is provided between the water tank 303 and the water pipe 301 to filter impurities in the water, ensuring that the cleaning water sprayed from the nozzle 302 is clean and improving the cleaning effect.

[0023] In this embodiment: the drying component 4 includes an air pipe 401, which is vertically installed at the end of the L-shaped bracket 1 away from the passivation tank 2. One end of the air pipe 401 is provided with several air nozzles 402. A hot air blower 403 connected to the air pipe 401 is installed on the L-shaped bracket 1. A water collection tank 404 is provided on the bottom side of the L-shaped bracket 1 away from the passivation tank 2.

[0024] Furthermore, the hot air blower 403 is equipped with a temperature regulating valve at the air outlet, which can control the hot air temperature at 60-80℃ to prevent the mechanical properties of the martensitic stainless steel bar from changing due to high temperature.

[0025] In this embodiment: the position adjustment component 5 includes a long slot 501, which is opened on the top of the L-shaped fixed frame 1. A lead screw 502 is rotatably installed in the long slot 501. An L-shaped lead screw seat 503 is provided on the outer side wall of the lead screw 502 through threads. An electric cylinder 504 is installed on the top of the end of the L-shaped lead screw seat 503 away from the long slot 501. The output end of the electric cylinder 504 is fixedly installed at the middle of the top of the gantry 6. Several rollers 505 that are tactilely connected to the top of the L-shaped fixed frame 1 are installed at the bottom of the electric cylinder 504.

[0026] Furthermore, one side of the lead screw 502 is connected to the drive device. When the lead screw 502 rotates and drives the L-shaped lead seat 503 to move along the long groove 501, the roller 505 rolls on the top of the L-shaped fixed frame 1, which can reduce the frictional resistance of the L-shaped lead seat 503. The roller 505 is made of silicone material, which reduces frictional noise with the top of the L-shaped fixed frame and avoids scratching the surface of the equipment.

[0027] In this embodiment: the vibration assembly 7 includes two connecting slots 701, which are respectively opened below both ends of the gantry 6. Two vertical rods 702 are fixedly installed in the connecting slots 701. A sliding plate 703 is slidably installed between the two vertical rods 702. The upper and lower ends of the sliding plate 703 are connected to the gantry 6 by springs 704. The two sliding plates 703 are fixedly installed at one end close to each other and above both ends of the connecting frame 8. A vibrator 705 is provided at the top center of the connecting frame 8.

[0028] Furthermore, the spring 704 adopts a variable diameter design, with slightly higher stiffness at the top and bottom ends and lower stiffness in the middle, which can make the vibration amplitude of the slide plate 703 more uniform and avoid violent vibration causing the martensitic stainless steel rod to fall out of the U-shaped frame 11; the frequency of the vibrator 705 is adjustable (10-30Hz recommended) to adapt to rods of different lengths, ensuring the vibration effect while preventing resonance damage to the equipment.

[0029] In this embodiment: the erecting assembly 9 includes two connecting shafts 901, which are fixed at both ends of the connecting seat 10 respectively. The two connecting shafts 901 are rotatably mounted at both ends of the connecting frame 8 respectively, and one end of one connecting shaft 901 is connected to the output end of the drive motor 902.

[0030] Furthermore, the drive motor 902 is a servo motor with braking function to avoid deviation due to inertia after rotation to the position. The drive motor 902 is equipped with a waterproof box.

[0031] In this embodiment: the revolution and rotation assembly 12 includes a main shaft 121, which is rotatably mounted in the middle of the connecting seat 10. A connecting cylinder 122 is mounted on one side of the main shaft 121. A through groove 123 is opened on the main shaft 121. A servo motor 124 is installed in the through groove 123. The output end of the servo motor 124 passes through the connecting cylinder 122 and is equipped with a main gear 125. Six secondary shafts 126 are rotatably mounted on the connecting cylinder 122. A secondary gear 127 that meshes with the main gear 125 is installed on the outer wall of the secondary shaft 126. One side of each of the six secondary shafts 126 is fixedly mounted to one side of each of the six U-shaped frames 11. A worm gear 128 is mounted on the other side of the main shaft 121. A worm 129 that meshes with the worm gear 128 is rotatably mounted on the connecting seat 10.

[0032] Furthermore, a motor slot is provided on one side of the connecting seat 10, and one end of the worm gear 129 passes through the motor slot and is connected to the motor output end. A sealing cover is provided on one side of the motor slot to waterproof the motor. A cylinder cover is provided on one side of the connecting cylinder 122. A sealing ring is provided at the rotatable connection between the secondary shaft 126 and the cylinder cover to prevent passivation liquid or cleaning water from entering the interior of the connecting cylinder 122. A waterproof box is provided outside the servo motor 124. A circular slot is provided on one side of the connecting seat 10, and the worm gear 128 and worm 129 are located in the circular slot. A sealing disc is installed on one side of the circular slot to waterproof the worm gear 128 and worm 129.

[0033] In this embodiment: the clamping assembly 13 includes a bolt 131, which is rotatably mounted on the side of the U-shaped frame 11 away from the connecting cylinder 122 by means of a thread. A movable disk 132 is rotatably mounted on one side of the bolt 131 by means of a bearing. A guide rod 133 that is slidably connected to the U-shaped frame 11 is mounted on the movable disk 132. A fixed disk 134 is fixedly mounted on the inner wall of the side of the U-shaped frame 11 away from the movable disk 132.

[0034] Furthermore, the clamping surfaces of the moving disk 132 and the fixed disk 134 are provided with rubber pads, which not only enhances friction to prevent the rod from sliding, but also avoids excessive clamping force that could cause scratches on the surface of the rod; the sliding connection between the guide rod 133 and the U-shaped frame 11 is provided with a wear-resistant sleeve to extend the service life of the components and ensure the translational accuracy of the moving disk 132.

[0035] In this implementation: Step 1: Place the martensitic stainless steel rod between the moving plate 132 and the fixed plate 134, and then rotate the bolt 131 to make the moving plate 132 close to the fixed plate 134 to clamp and fix the martensitic stainless steel rod. After the six U-shaped frames 11 are placed, the electric cylinder 504 drives the gantry frame 6 to descend, which causes the connecting frame 8 to drive the connecting seat 10 to descend, so that the martensitic stainless steel rod can descend into the passivation tank 2 for passivation. Step 2: During the passivation process, the worm gear 129 drives the worm wheel 128 to rotate in both directions, causing the main shaft 121 to rotate in both directions, which in turn causes the connecting cylinder 122 to rotate, making the six martensitic stainless steel bars revolve in both directions within the passivation groove 2. The servo motor 124 drives the main gear 125 to rotate, which in turn causes the secondary gear 127 to drive the secondary shaft 126 to rotate, causing the U-shaped frame 11 to rotate, which in turn causes the martensitic stainless steel bars to rotate within the passivation groove 2. This rotation and revolution can improve the passivation effect. At the same time, the vibrator 705 is activated, and the slide plate 703 slides on the vertical rod 702 and compresses the spring 704, causing the connecting frame 8 to vibrate slightly up and down, which in turn causes the martensitic stainless steel bars to vibrate slightly, further improving the passivation effect. Step 3: After passivation, the electric cylinder 504 drives the connecting seat 10 to rise, causing the martensitic stainless steel rod to leave the passivation tank 2. Then, the lead screw 502 rotates, causing the L-shaped lead seat 503 to move above the cleaning tank 305. The electric cylinder 504 then drives the martensitic stainless steel rod into the cleaning tank 305 for cleaning. During the cleaning process, the martensitic stainless steel rod also rotates and revolves, and vibrates to improve the cleaning effect. After cleaning for a certain period of time, the electric cylinder 504 drives the martensitic stainless steel rod to rise until it is parallel to the nozzle 302. The rotation and revolution of the martensitic stainless steel rod stops vibrating. Finally, the nozzle 302 rinses the martensitic stainless steel rod one more time. Step 4: After cleaning, the electric cylinder 504 drives the connecting seat 10 to rise, causing the martensitic stainless steel rod to leave the passivation tank 2. Then, the lead screw 502 rotates, causing the L-shaped lead seat 503 to move above the water collection tank 404. The drive motor 902 drives the connecting shaft 901 to rotate 90 degrees, making the martensitic stainless steel rod vertical. The air nozzle 402 sprays hot air to dry the martensitic stainless steel rod. The martensitic stainless steel rod also rotates and revolves, vibrating. Through vibration, a certain amount of moisture can be shaken off, which can reduce drying time and improve drying efficiency.

[0036] The workflow of this embodiment is as follows: Step 1: Place the martensitic stainless steel rod between the moving plate 132 and the fixed plate 134, and then rotate the bolt 131 to bring the moving plate 132 closer to the fixed plate 134 to clamp and fix the martensitic stainless steel rod. After the six U-shaped frames 11 are placed, the electric cylinder 504 drives the gantry frame 6 to descend, which causes the connecting frame 8 to drive the connecting seat 10 to descend, so that the martensitic stainless steel rod can descend into the passivation tank 2 for passivation. Step 2: During the passivation process, the worm gear 129 drives the worm wheel 128 to rotate in both directions, causing the main shaft 121 to rotate in both directions, which in turn causes the connecting cylinder 122 to rotate, making the six martensitic stainless steel bars revolve in both directions within the passivation groove 2. The servo motor 124 drives the main gear 125 to rotate, which in turn causes the secondary gear 127 to drive the secondary shaft 126 to rotate, causing the U-shaped frame 11 to rotate, which in turn causes the martensitic stainless steel bars to rotate within the passivation groove 2. This rotation and revolution can improve the passivation effect. At the same time, the vibrator 705 is activated, and the slide plate 703 slides on the vertical rod 702 and compresses the spring 704, causing the connecting frame 8 to vibrate slightly up and down, which in turn causes the martensitic stainless steel bars to vibrate slightly, further improving the passivation effect. Step 3: After passivation, the electric cylinder 504 drives the connecting seat 10 to rise, causing the martensitic stainless steel rod to leave the passivation tank 2. Then, the lead screw 502 rotates, causing the L-shaped lead seat 503 to move above the cleaning tank 305. The electric cylinder 504 then drives the martensitic stainless steel rod into the cleaning tank 305 for cleaning. During the cleaning process, the martensitic stainless steel rod also rotates and revolves, and vibrates to improve the cleaning effect. After cleaning for a certain period of time, the electric cylinder 504 drives the martensitic stainless steel rod to rise until it is parallel to the nozzle 302. The rotation and revolution of the martensitic stainless steel rod stops vibrating. Finally, the nozzle 302 rinses the martensitic stainless steel rod one more time. Step 4: After cleaning, the electric cylinder 504 drives the connecting seat 10 to rise, causing the martensitic stainless steel rod to leave the passivation tank 2. Then, the lead screw 502 rotates, causing the L-shaped lead seat 503 to move above the water collection tank 404. The drive motor 902 drives the connecting shaft 901 to rotate 90 degrees, making the martensitic stainless steel rod vertical. The air nozzle 402 sprays hot air to dry the martensitic stainless steel rod. The martensitic stainless steel rod also rotates and revolves, vibrating. Through vibration, a certain amount of moisture can be shaken off, which can reduce drying time and improve drying efficiency.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A medical martensitic material rust prevention treatment device, characterized in that, include: The L-shaped fixing frame has a passivation groove on one side of its bottom, a cleaning component in the middle of its bottom, and a drying component on the other side of its bottom. A gantry frame is mounted above the passivation groove via an adjustment component. A connecting frame is mounted on the gantry frame via a vibration component. A connecting seat is mounted on the connecting frame via an erection component. Six U-shaped frames are mounted on one side of the connecting seat. A rotation and revolution component is mounted on the connecting seat to allow the six U-shaped frames to rotate and revolve. A clamping component is mounted on the U-shaped frames to hold martensitic stainless steel bars. A PLC controller is mounted on one side of the L-shaped fixing frame.

2. The medical martensitic material rust prevention treatment equipment according to claim 1, characterized in that, The cleaning assembly includes a water pipe, which is fixedly installed at the middle of one end of an L-shaped bracket. One end of the water pipe is provided with several nozzles. A water tank is installed on the L-shaped bracket. The water tank and the water pipe are connected by a water pump. A cleaning trough is provided at the middle of the bottom of the L-shaped bracket.

3. The medical martensitic material rust prevention treatment equipment according to claim 1, characterized in that, The drying assembly includes an air pipe, which is vertically installed at the end of an L-shaped bracket away from the passivation tank. One end of the air pipe is provided with several air nozzles. A hot air blower connected to the air pipe is installed on the L-shaped bracket. A water collection tank is provided on the bottom side of the L-shaped bracket away from the passivation tank.

4. The medical martensitic material rust prevention treatment equipment according to claim 1, characterized in that, The position adjustment assembly includes a long slot, which is formed on the top of the L-shaped fixing frame. A lead screw is rotatably installed in the long slot. An L-shaped lead screw seat is provided on the outer side wall of the lead screw through a thread. An electric cylinder is installed on the top of the L-shaped lead screw seat away from the long slot. The output end of the electric cylinder is fixedly installed at the middle of the top of the gantry frame. Several rollers that are tactilely connected to the top of the L-shaped fixing frame are installed on the bottom of the electric cylinder.

5. The medical martensitic material rust prevention treatment equipment according to claim 1, characterized in that, The vibration assembly includes two connecting slots, which are respectively opened at the lower ends of the gantry frame. Two vertical rods are fixedly installed in the connecting slots, and a sliding plate is slidably installed between the two vertical rods. The upper and lower ends of the sliding plate are connected to the gantry frame by springs. The two sliding plates are fixedly installed at the upper ends of the connecting frame at their respective ends, and a vibrator is provided at the middle of the top of the connecting frame.

6. The medical martensitic material rust prevention treatment equipment according to claim 1, characterized in that, The erecting assembly includes two connecting shafts, which are respectively fixed at both ends of the connecting seat and rotatably mounted at both ends of the connecting frame. One end of one connecting shaft is connected to the output end of the drive motor.

7. The medical martensitic material rust prevention treatment equipment according to claim 1, characterized in that, The revolution and rotation assembly includes a main shaft, which is rotatably mounted in the middle of the connecting seat. A connecting cylinder is mounted on one side of the main shaft. A through groove is opened on the main shaft, and a servo motor is installed in the through groove. The output end of the servo motor passes through the connecting cylinder and is equipped with a main gear. Six secondary shafts are rotatably mounted on the connecting cylinder. Secondary gears that mesh with the main gear are installed on the outer side of the secondary shafts. One side of each of the six secondary shafts is fixedly mounted to one side of each of the six U-shaped frames. A worm gear is mounted on the other side of the main shaft, and a worm that meshes with the worm gear is rotatably mounted on the connecting seat.

8. The medical martensitic material rust prevention treatment equipment according to claim 1, characterized in that, The clamping assembly includes a bolt, which is rotatably mounted on the side of the U-shaped frame away from the connecting cylinder via a thread. A movable disk is rotatably mounted on one side of the bolt via a bearing. A guide rod that is slidably connected to the U-shaped frame is mounted on the movable disk. A fixed disk is fixedly mounted on the inner wall of the side of the U-shaped frame away from the movable disk.

9. A method for rust prevention treatment of medical martensitic materials according to any one of claims 1-8, characterized in that, Step 1: Place the martensitic stainless steel rod between the moving plate and the fixed plate, and then rotate the bolt to bring the moving plate closer to the fixed plate to clamp and fix the martensitic stainless steel rod. After placing it in the six U-shaped frames, the electric cylinder drives the gantry frame to descend, which in turn drives the connecting frame to descend the connecting seat, allowing the martensitic stainless steel rod to descend into the passivation tank for passivation. Step 2: During the passivation process, the worm gear drives the worm wheel to rotate in both directions, causing the main shaft to rotate in both directions. This causes the connecting cylinder to rotate, which in turn causes the six martensitic stainless steel bars to revolve in both directions within the passivation groove. The servo motor drives the main gear to rotate, which in turn drives the secondary shaft to rotate, causing the U-shaped frame to rotate. This causes the martensitic stainless steel bars to rotate within the passivation groove. This rotation and revolution improve the passivation effect. At the same time, the vibrator is activated. The slide plate slides on the vertical rod and compresses the spring, causing the connecting frame to vibrate slightly up and down. This slight vibration of the martensitic stainless steel bars further improves the passivation effect. Step 3: After passivation, the electric cylinder drives the connecting seat to rise, causing the martensitic stainless steel rod to leave the passivation tank. Then, the lead screw rotates, moving the L-shaped lead seat above the cleaning tank. The electric cylinder then drives the martensitic stainless steel rod into the cleaning tank for cleaning. During the cleaning process, the martensitic stainless steel rod also rotates, revolves, and vibrates to improve the cleaning effect. After cleaning for a certain period of time, the electric cylinder drives the martensitic stainless steel rod to rise until it is parallel to the nozzle. The rotation and revolution of the martensitic stainless steel rod then stop vibrating. Finally, the nozzle rinses the martensitic stainless steel rod one last time. Step 4: After cleaning, the electric cylinder drives the connecting seat to rise, causing the martensitic stainless steel rod to leave the passivation tank. Then, the lead screw rotates, moving the L-shaped lead seat above the water collection tank. The drive motor drives the connecting shaft to rotate 90 degrees, making the martensitic stainless steel rod vertical. Hot air is sprayed from the air nozzle to dry the martensitic stainless steel rod. The martensitic stainless steel rod also rotates and revolves, vibrating. Through vibration, some moisture can be shaken off, which can reduce drying time and improve drying efficiency.

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