Puncture needle sharpening device with placing and positioning functions
By introducing a splash-proof mechanism and a scraper cleaning system into the grinding device, the problem of metal shavings affecting the grinding effect is solved, and stable positioning of the puncture needle and efficient grinding are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-14
AI Technical Summary
In existing technologies, metal shavings generated during the sharpening process of the puncture needle are easily splashed onto the surface of the slide rail and the electric slider, affecting the sharpening effect and positioning accuracy.
A puncture needle sharpening device with a splash-proof mechanism was designed, including a transparent frame, a transparent window, a shield, and a soft pad to prevent metal debris from splashing onto the positioning mechanism. At the same time, impurities are cleaned by a clamp and a scraper to ensure the stability and accuracy of the positioning mechanism.
It effectively prevents metal debris from splashing, keeps the positioning mechanism clean, ensures the sharpening effect and positioning accuracy of the puncture needle, and improves the stability and consistency of the sharpening process.
Smart Images
Figure CN224115837U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of puncture needle sharpening technology, specifically to a puncture needle sharpening device with placement and positioning function. Background Technology
[0002] A puncture needle is a medical device widely used in medical, scientific research and other fields. In order to successfully puncture the patient's tissue, a sharpening device is usually used to grind the edge of the puncture needle to make it sharp, smooth and meet specific angle and shape requirements.
[0003] According to the Chinese patent "A Sharpening Device for the Side Hole of a Puncture Needle" (authorization announcement number CN215617029U), the device uses a slide rail, an electric slider, and a second electric telescopic rod to adjust and position the moving seat and the rotating plate, thereby ensuring the sharpening effect on the puncture needle.
[0004] In the aforementioned application, the puncture needle will generate metal shavings during the sharpening process. These metal shavings can easily splash onto the surface of the slide rail and the electric slider, thereby affecting the adjustment of the puncture needle's position and thus the sharpening effect on the puncture needle.
[0005] Based on this, the present invention designs a puncture needle sharpening device with placement and positioning function to solve the above problems. Utility Model Content
[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a puncture needle sharpening device with placement and positioning function.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A puncture needle sharpening device with placement and positioning function includes a sharpening table and a positioning mechanism, as well as a splash-proof mechanism. The splash-proof mechanism includes a transparent frame fixedly connected to the top of the sharpening table. A transparent window is hinged to the front end of the transparent frame. A through hole is opened on one side of the transparent frame. A cover is fixedly connected to one side of the transparent frame. The surface of the cover is trumpet-shaped. A ring of soft pads is fixedly connected to the inner wall of the cover. Two dust covers are provided on the surface of the positioning mechanism.
[0009] Furthermore, the positioning mechanism includes an electric guide rail fixedly connected to the top of the grinding table, a slider slidably connected to the surface of the electric guide rail, a clamp rotatably connected to the upper surface of the slider, one side of the dust cover fixedly connected to one side of the slider, and the other side of the dust cover fixedly connected to one side of the electric guide rail.
[0010] Furthermore, a first scraper is fixedly connected to the lower end of the surface of the clamp, and the end of the first scraper contacts the top of the slider.
[0011] Furthermore, a number of second scrapers are fixedly connected to the bottom of the slider, and the ends of the second scrapers contact the top of the grinding table.
[0012] Furthermore, a ball bearing is rotatably connected to the lower end of the surface of the slider, and the surface of the ball bearing is rotatably connected to the top of the grinding table.
[0013] Furthermore, an inclined plate is fixedly connected to the inner bottom wall of the transparent frame, and the rear end of the inclined plate contacts the front end of the grinding table.
[0014] Furthermore, the inner wall of the transparent frame is slidably connected to a locking rod, the surface of which is engaged with the inner wall of the transparent window.
[0015] Furthermore, a limiting rod is fixedly connected to the end of the transparent frame, and the inner wall of the locking rod is slidably connected to the surface of the limiting rod. Beneficial effects
[0016] By using a combination of transparent frames, transparent windows, covers, and soft pads, the surface of the grinding wheel is enclosed, thus preventing metal debris from splashing onto the positioning mechanism. A dust cover is used to protect the surface of the positioning mechanism, preventing impurities from adhering to it. Compared to existing methods where metal debris easily splashes onto the slide rail and electric slider, this method prevents metal debris from splashing onto the positioning mechanism and protects its surface, ensuring the positioning mechanism's function of placing and positioning the puncture needle, thereby ensuring the sharpening effect on the puncture needle.
[0017] The first scraper rotates within a suitable range by rotating the clamp, allowing it to scrape away impurities stuck at the top of the slider. The movement of the slider moves the second scraper, which then scrapes the top of the grinding table, preventing the ball from contacting the impurities on the top of the grinding table. This ensures the slider moves smoothly on the grinding table and guarantees the positioning mechanism's effectiveness in placing the puncture needle. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 A perspective view of a puncture needle sharpening device with placement and positioning function;
[0020] Figure 2 A perspective view of the positioning mechanism and splash-proof mechanism of a puncture needle sharpening device with placement and positioning function;
[0021] Figure 3 A perspective view of the splash-proof mechanism of a puncture needle sharpening device with placement and positioning function;
[0022] Figure 4 for Figure 2 Enlarged view of point A in the middle.
[0023] The labels in the diagram represent:
[0024] 1. Grinding table; 2. Positioning mechanism; 21. Electric guide rail; 22. Slider; 23. Fixture; 3. Splash prevention mechanism; 31. Transparent frame; 32. Transparent window; 33. Through hole; 34. Mask; 35. Soft pad; 36. Dust cover; 37. First scraper; 38. Second scraper; 39. Ball bearing; 310. Inclined plate; 311. Locking rod; 312. Limiting rod. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0026] The present invention will be further described below with reference to the embodiments.
[0027] In some embodiments, please refer to the appendix to the instruction manual. Figure 1-4 A puncture needle sharpening device with placement and positioning function includes a sharpening table 1 and a positioning mechanism 2, as well as a splash-proof mechanism 3. The splash-proof mechanism 3 includes a transparent frame 31 fixedly connected to the top of the sharpening table 1. A transparent window 32 is hinged to the front end of the transparent frame 31. A through hole 33 is opened on one side of the transparent frame 31. A cover 34 is fixedly connected to one side of the transparent frame 31. The surface of the cover 34 is flared. A ring of soft pads 35 is fixedly connected to the inner wall of the cover 34. Two dust covers 36 are provided on the surface of the positioning mechanism 2. The soft pads 35 and the dust covers 36 are both made of silicone. Tempered glass is embedded in the surfaces of the transparent frame 31 and the transparent window 32.
[0028] A sharpening machine typically consists of a power system, a transmission mechanism, a grinding wheel, and a control system.
[0029] The electric motor is the core component of the power system, providing power for the sharpening process. Different types of motors have different speed and torque characteristics, and can be selected according to the specific needs of the sharpening device. For example, high-speed motors are suitable for rapid rough sharpening of puncture needles, while motors with higher torque are more suitable for providing stable power during fine sharpening.
[0030] Transmission mechanism: Transmits the power of the motor to the grinding wheel or other abrasives. Common transmission mechanisms include belt drive, gear drive and coupling drive.
[0031] control system
[0032] The controller is the core of the control system, typically employing a programmable logic controller (PLC) or an industrial computer. Based on preset programs and parameters, the controller precisely controls the operation of the power system, grinding system, and positioning system, achieving an automated grinding process.
[0033] User interface: Provides operators with a human-machine interface platform for easy setting of sharpening parameters, starting and stopping the sharpening device, and other operations. The user interface typically uses a touchscreen or button-based control panel, and is intuitive and easy to use.
[0034] Feedback adjustment mechanism: Based on the information fed back by the sensors, the control system can adjust the parameters in the grinding process in real time, such as the grinding wheel speed, feed speed, grinding pressure, etc., to ensure the stability and consistency of the grinding quality.
[0035] The inner surface of the grinding table 1 is provided with a collection frame, and the front, rear, and bottom of the transparent frame 31 are all open.
[0036] In this embodiment of the utility model, when the puncture needle needs to be sharpened, the positioning mechanism 2 clamps and positions the puncture needle. The positioning mechanism 2 drives the puncture needle to pass through the through hole 33 and the cover 34 in sequence, so that one end of the puncture needle contacts the surface of the grinding wheel, drives the grinding wheel, and makes the grinding wheel start to rotate at high speed to sharpen the puncture needle to a suitable precision. The metal debris generated during the sharpening process falls into the collection box through the bottom of the transparent frame 31.
[0037] In this embodiment of the utility model, the transparent frame 31 and the transparent window 32 work together to enclose the surface of the grinding wheel, thereby preventing most of the metal debris from splashing onto the positioning mechanism 2. The shield 34 and the soft pad 35 work together to prevent some of the metal debris from splashing onto the positioning mechanism 2 through the through hole 33, thus avoiding the metal debris from splashing onto the positioning mechanism 2. The dust cover 36 protects the surface of the positioning mechanism 2, preventing impurities from adhering to the positioning mechanism 2, ensuring the positioning function of the positioning mechanism 2 for the placement of the puncture needle, and thus ensuring the sharpening effect of the puncture needle.
[0038] In some embodiments, such as Figure 2-3As shown, in a preferred embodiment of the present invention, the positioning mechanism 2 includes an electric guide rail 21 fixedly connected to the top of the grinding table 1, a slider 22 slidably connected to the surface of the electric guide rail 21, a clamp 23 rotatably connected to the upper surface of the slider 22, one side of a dust cover 36 fixedly connected to one side of the slider 22, and the other side of the dust cover 36 fixedly connected to one side of the electric guide rail 21, a first scraper 37 fixedly connected to the lower surface of the clamp 23, the end of the first scraper 37 contacting the top of the slider 22, a plurality of second scrapers 38 fixedly connected to the bottom of the slider 22, the ends of the second scrapers 38 contacting the top of the grinding table 1, and a ball bearing 39 rollingly connected to the lower surface of the slider 22, the surface of the ball bearing 39 rollingly connected to the top of the grinding table 1.
[0039] A servo motor is fixedly connected to the inner wall of slider 22, and the output shaft of the servo motor is fixedly connected to the bottom of fixture 23.
[0040] The clamp 23 uses an electromagnetic chuck for positioning. Since the puncture needle is made of metal, the electromagnetic chuck generates a strong magnetic field when energized, which attracts the puncture needle to the surface of the chuck. By controlling the magnitude of the current, the strength of the magnetic field can be adjusted, thereby controlling the magnitude of the attraction force. The electromagnetic chuck positioning has the advantages of convenient operation and fast positioning speed. It can quickly fix the puncture needle on the sharpening device. At the same time, after the sharpening is completed, simply cut off the power, the magnetic field disappears, and the puncture needle can be easily removed.
[0041] The electric guide rail 21 consists of a guide rail, a slider 22, a drive motor, and a transmission device.
[0042] Guide rail: As a basic component of the electric guide rail 21, it provides a path for the moving parts. Common guide rails include linear guide rails, which are characterized by high precision and low friction, ensuring smooth and accurate movement.
[0043] Slider 22: Slider 22 is mounted on the guide rail and cooperates with the guide rail to achieve relative movement. Slider 22 usually contains rollers, which reduce the friction between it and the guide rail through rolling friction, thereby improving the movement efficiency.
[0044] Drive motor: The drive motor is the power source for the electric guide rail 21. Common drive motors include stepper motors and servo motors. Stepper motors can rotate according to a precise number of steps, making them suitable for applications requiring high positional accuracy; servo motors, on the other hand, have higher response speed and control precision, enabling more complex motion control.
[0045] Transmission device: The transmission device is used to convert the rotational motion of the motor into the linear motion of the slider 22. Common transmission methods include lead screw drive and synchronous belt drive. Lead screw drive has the characteristics of high precision and high rigidity, and can achieve precise position control; synchronous belt drive has the advantages of smooth transmission and low noise.
[0046] In this embodiment of the utility model, after the clamp 23 clamps the puncture needle, the electric guide rail 21 is automatically opened, which in turn causes the slider 22 to drive the clamp 23 and the puncture needle to pass through the through hole 33 and the cover 34 in sequence and extend to a suitable position inside the transparent frame 31. The electric guide rail 21 is automatically closed, and the servo motor is automatically turned on. The output shaft of the servo motor rotates, causing the clamp 23 and the puncture needle to rotate at a suitable angle, so that the end of the puncture needle contacts the grinding wheel, and the rotating grinding wheel sharpens the puncture needle.
[0047] In this embodiment of the utility model, the first scraper 37 is rotated by the rotation of the clamp 23, so that the rotating first scraper 37 scrapes away the impurities stuck at a certain place on the top of the slider 22. The movement of the slider 22 drives the second scraper 38 to move and scrape the top of the grinding table 1, thereby preventing the ball 39 from contacting the impurities on the top of the grinding table 1, ensuring that the slider 22 moves smoothly on the grinding table 1, and thus ensuring the positioning effect of the positioning mechanism 2 on the placement and positioning of the puncture needle.
[0048] In some embodiments, such as Figure 4 As shown, in a preferred embodiment of this utility model, an inclined plate 310 is fixedly connected to the inner bottom wall of the transparent frame 31, the rear end of the inclined plate 310 contacts the front end of the grinding table 1, a locking rod 311 is slidably connected to the inner wall of the transparent frame 31, the surface of the locking rod 311 is engaged with the inner wall of the transparent window 32, and a limiting rod 312 is fixedly connected to the end of the transparent frame 31, the inner wall of the locking rod 311 is slidably connected to the surface of the limiting rod 312. The locking rod 311 is a rubber component.
[0049] In this embodiment of the utility model, the clamp 311 is inserted into the transparent window 32, thereby making the transparent window 32 stably block the front end of the transparent frame 31, preventing metal debris from splashing out of the grinding table 1. The inclined plate 310 guides the splashed metal debris, preventing the splashed metal debris from being stuck on the bottom wall of the transparent frame 31.
[0050] It should be noted that the grinding table 1, electric guide rail 21, slider 22, fixture 23 and servo motor mentioned above are all devices with relatively mature existing technology. The specific models can be selected according to actual needs. At the same time, the electric guide rail 21, fixture 23 and servo motor can be powered by the built-in power supply or by the mains power. The specific power supply method is selected according to the situation and will not be elaborated here.
[0051] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A puncture needle sharpening device with placement and positioning function, comprising a sharpening table (1) and a positioning mechanism (2), characterized in that: It also includes a splash-proof mechanism (3), which includes a transparent frame (31) fixedly connected to the top of the grinding table (1). A transparent window (32) is hinged to the front end of the transparent frame (31). A through hole (33) is opened on one side of the transparent frame (31). A cover (34) is fixedly connected to one side of the transparent frame (31). The surface of the cover (34) is trumpet-shaped. A ring-shaped soft pad (35) is fixedly connected to the inner wall of the cover (34). Two dust covers (36) are provided on the surface of the positioning mechanism (2).
2. The puncture needle sharpening device with placement and positioning function according to claim 1, characterized in that, The positioning mechanism (2) includes an electric guide rail (21) fixedly connected to the top of the grinding table (1), a slider (22) slidably connected to the surface of the electric guide rail (21), a clamp (23) rotatably connected to the upper end of the surface of the slider (22), one side of the dust cover (36) fixedly connected to one side of the slider (22), and the other side of the dust cover (36) fixedly connected to one side of the electric guide rail (21).
3. The puncture needle sharpening device with placement and positioning function according to claim 2, characterized in that, The lower end of the surface of the clamp (23) is fixedly connected to a first scraper (37), and the end of the first scraper (37) contacts the top of the slider (22).
4. The puncture needle sharpening device with placement and positioning function according to claim 2, characterized in that, The bottom of the slider (22) is fixedly connected with several second scrapers (38), and the ends of the second scrapers (38) are in contact with the top of the grinding table (1).
5. The puncture needle sharpening device with placement and positioning function according to claim 2, characterized in that, The lower end of the surface of the slider (22) is connected to a ball (39), and the surface of the ball (39) is connected to the top of the grinding table (1).
6. The puncture needle sharpening device with placement and positioning function according to claim 1, characterized in that, An inclined plate (310) is fixedly connected to the inner bottom wall of the transparent frame (31), and the rear end of the inclined plate (310) contacts the front end of the grinding table (1).
7. The puncture needle sharpening device with placement and positioning function according to claim 1, characterized in that, The inner wall of the transparent frame (31) is slidably connected to a locking rod (311), and the surface of the locking rod (311) is engaged with the inner wall of the transparent window (32).
8. The puncture needle sharpening device with placement and positioning function according to claim 7, characterized in that, The end of the transparent frame (31) is fixedly connected to a limiting rod (312), and the inner wall of the locking rod (311) is slidably connected to the surface of the limiting rod (312).