Puncture needle tube grinding device

By introducing a grinding mechanism driven by a linear motor and an electric push rod into the puncture needle grinding device, the problem of manual intervention required to adjust the distance between the grinding disc and the needle in the prior art has been solved. This achieves automated adjustment and fixation, reduces workload, and improves grinding efficiency and needle yield.

CN224239109UActive Publication Date: 2026-05-15SHANGHAI BRIGHTSTONE MEDICAL TECH LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI BRIGHTSTONE MEDICAL TECH LTD
Filing Date
2025-04-07
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

The existing puncture needle grinding device requires the limit switch to be released when adjusting the distance between the grinding disc and the needle, which increases the workload of the staff.

Method used

The grinding mechanism, driven by a linear motor, an electric push rod, and a servo motor, adjusts the grinding angle and position via the electric push rod to fix and grind the puncture needle, reducing manual intervention.

Benefits of technology

It reduced the workload of workers, improved grinding efficiency and syringe yield, and simplified the operation process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224239109U_ABST
Patent Text Reader

Abstract

The utility model discloses a puncture needle tube grinding device, and relates to the technical field of puncture needle tube grinding devices. A puncture needle tube fixing mechanism is arranged on the upper side of the base, a linear motor is arranged on the upper side of the base, a mounting block is arranged at the movable end of the linear motor, a connecting plate is movably matched with one side of the mounting block, and a polishing mechanism is arranged on one side of the connecting plate. The puncture needle tube is positioned through the puncture needle tube fixing mechanism, the polishing mechanism is started, the second electric push rod is started to drive the connecting plate to rotate around the output shaft of the first electric push rod, the polishing mechanism is driven to rotate, and the polishing angle is convenient to adjust; and then the first electric push rod and the second electric push rod are started simultaneously to drive the connecting plate and the grinding mechanism to move horizontally, and the position of the grinding mechanism is adjusted conveniently.
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Description

Technical Field

[0001] This utility model belongs to the field of puncture needle grinding device, specifically, it relates to a puncture needle grinding device. Background Technology

[0002] With the advancement of metal processing technology and medicine, intravenous infusion and its theory have developed rapidly, quickly giving rise to various needle types for different applications, with puncture needles being just one small branch.

[0003] Chinese Patent No. CN217167913U discloses a puncture needle grinding device. By using an expansion component and a moving extrusion block, the needle on the fixing table is slid into the inner wall of the mounting hole. A magnetic block attracts the needle to the bottom of the mounting hole, and an elastic plate slides into the inner wall of the needle, which can fix the needle from the inside, thereby improving the fixing effect and increasing the yield of the needle after grinding.

[0004] However, when the grinding angle of the aforementioned puncture needle tube grinding device is adjusted by using an electric telescopic rod, the distance between the grinding disc and the puncture needle tube will change. It is necessary to release the puncture needle tube limit, adjust the position of the puncture needle tube, and change the distance between the grinding disc and the puncture needle tube, which increases the workload of the workers.

[0005] In view of this, this utility model is hereby proposed. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a puncture needle grinding device.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0008] A puncture needle grinding device includes a base, a puncture needle fixing mechanism on the upper side of the base, a linear motor on the upper side of the base, a mounting block on the movable end of the linear motor, a connecting plate movably fitted on one side of the mounting block, a grinding mechanism on one side of the connecting plate, a first electric push rod fixed on one side of the mounting block, and a second electric push rod vertically sliding on one side of the mounting block. The output ends of the first and second electric push rods are hinged to one side of the connecting plate.

[0009] Optionally, a T-shaped slide rail is provided on one side of the mounting block along the height direction, and a slider is slidably fitted inside the T-shaped slide rail, with the second electric push rod fixed to one side of the slider.

[0010] Optionally, the connecting plate has two protrusions on one side, and the output ends of the first electric push rod and the second electric push rod are rotatably fitted between the two protrusions.

[0011] Optionally, a water tank is provided on the upper side of the base, a water pump is provided on one side of the water tank, the output end of the water pump is connected to a nozzle corresponding to the grinding mechanism, and a collection box is provided on the upper side of the base.

[0012] Optionally, the grinding mechanism includes a servo motor located on one side of the connecting plate and a grinding disc located at the output end of the servo motor.

[0013] Optionally, the puncture needle fixing mechanism includes a limiting plate that slides on the upper side of the base, a Torx handle screw that rotates on the base and is threaded into the limiting plate, a support plate located on the upper side of the base, a pressure plate that slides on the upper side of the base, and two third electric push rods located on the upper side of the base for driving the pressure plate to slide.

[0014] Optionally, the upper side of the base is provided with a T-shaped channel, the lower part of the limiting plate is a T-shaped plate structure, the lower part of the limiting plate slides in the T-shaped channel, one end of the Torx handle screw rotates and fits on the inner wall of the T-shaped channel, and one side of the limiting plate has multiple opening slots in a linear array.

[0015] Optionally, the upper side of the support plate is provided with a first arc-shaped groove corresponding to the opening groove, and the bottom surface of the pressure plate is provided with a second arc-shaped groove corresponding to the opening groove, with a rubber pad provided on the inner wall of the second arc-shaped groove.

[0016] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0017] The puncture needle is positioned by the puncture needle fixing mechanism. The grinding mechanism is then activated, and the second electric push rod drives the connecting plate to rotate around the output shaft of the first electric push rod, thereby rotating the grinding mechanism to facilitate adjustment of the grinding angle. The second electric push rod slides on the side of the mounting block to accommodate its vertical displacement. Then, the first and second electric push rods are activated simultaneously, causing the connecting plate and grinding mechanism to move horizontally. This allows for adjustment of the position of the grinding mechanism and the thickness of the grinding on the puncture needle. The position of the grinding mechanism can be adjusted without removing the thickness of the puncture needle, thus adjusting the distance between the puncture needle and the grinding mechanism and reducing the worker's workload.

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0020] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0021] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the puncture needle fixing mechanism according to an embodiment of the present invention;

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Base; 2. Puncture needle fixing mechanism; 3. Limiting plate; 4. Torx handle screw; 5. Support plate; 6. Pressure plate; 7. Third electric push rod; 8. Opening groove; 9. First electric push rod; 10. Second electric push rod; 11. T-shaped slide; 12. Slider; 13. Water tank; 14. Water pump; 15. Nozzle; 16. Collection box; 17. T-shaped channel.

[0025] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings.

[0027] Please see Figure 1-3 As shown, this embodiment provides a puncture needle grinding device, including a base 1, a puncture needle fixing mechanism 2 on the upper side of the base 1, a linear motor 3 on the upper side of the base 1, a mounting block 4 on the movable end of the linear motor 3, a connecting plate 5 movably fitted on one side of the mounting block 4, a grinding mechanism 6 on one side of the connecting plate 5, a first electric push rod 7 fixed on one side of the mounting block 4, and a second electric push rod 8 vertically sliding on one side of the mounting block 4. The output ends of the first electric push rod 7 and the second electric push rod 8 are hinged to one side of the connecting plate 5.

[0028] The puncture needle is positioned by the puncture needle fixing mechanism 2. The grinding mechanism 6 is activated, and the second electric push rod 8 drives the connecting plate 5 to rotate around the output shaft of the first electric push rod 7, thereby rotating the grinding mechanism 6 to facilitate adjustment of the grinding angle. The second electric push rod 8 slides on the side of the mounting block 4 to accommodate the vertical displacement of the second electric push rod 8. Then, the first electric push rod 7 and the second electric push rod 8 are activated simultaneously, driving the connecting plate 5 and the grinding mechanism 6 to move horizontally, which facilitates adjustment of the position of the grinding mechanism 6 and the thickness of the grinding of the puncture needle. The position of the grinding mechanism 6 can be adjusted without removing the thickness of the puncture needle, and the distance between the puncture needle and the grinding mechanism 6 can be adjusted, which helps to reduce the workload of the workers.

[0029] Please see Figure 2 As shown, in this embodiment, a T-shaped slide rail 9 is provided on one side of the mounting block 4 along the height direction. A slider 10 is slidably fitted inside the T-shaped slide rail 9. The second electric push rod 8 is fixed on one side of the slider 10 to facilitate guiding the slider 10 to slide through the T-shaped slide rail 9. The second electric push rod 8 slides on the side of the mounting block 4 through the slider 10.

[0030] Please see Figure 2 As shown, the connecting plate 5 in this embodiment has two protrusions 11 on one side. The output ends of the first electric push rod 7 and the second electric push rod 8 are rotatably fitted between the two protrusions 11, so that the output ends of the first electric push rod 7 and the second electric push rod 8 can be hinged to the connecting plate 5.

[0031] Please see Figure 2 As shown, the base 1 of this embodiment is provided with a water tank 12 on the upper side, a water pump 13 on one side of the water tank 12, and a nozzle 14 corresponding to the grinding mechanism 6 is connected to the output end of the water pump 13. A collection box 15 is provided on the upper side of the base 1. The grinding mechanism 6 includes a servo motor 601 on one side of the connecting plate 5 and a grinding disc 602 on the output end of the servo motor 601, so that the water pump 13 can spray the water from the water tank 12 onto the grinding disc 602 through the nozzle 14 to cool and rinse the grinding disc 602 and the grinding area of ​​the puncture needle tube. The rinsing water is collected through the collection box 15.

[0032] Please see Figure 1-3As shown, the puncture needle fixing mechanism 2 of this embodiment includes a limiting plate 201 slidably fitted on the upper side of the base 1, a Torx handle screw 202 rotatably fitted on the base 1 and threadedly fitted with the limiting plate 201, a support plate 203 disposed on the upper side of the base 1, a pressure plate 204 slidably fitted on the upper side of the base 1, and two third electric push rods 205 disposed on the upper side of the base 1 for driving the pressure plate 4 to slide. The upper side of the base 1 is provided with a T-shaped channel 16. The lower part of the limiting plate 201 is a T-shaped plate structure, and the lower part of the limiting plate 201 slidably fitted in the T-shaped channel 16. One end of the Torx handle screw 202 is rotatably fitted on the inner wall of the T-shaped channel 16. A plurality of open slots 206 are arranged in a straight line on one side of the limiting plate 201. The upper side of the support plate 203 is provided with a first arc-shaped groove 20 corresponding to the open slots 206. 7. The bottom surface of the pressure plate 204 is provided with a second arc-shaped groove 208 corresponding to the opening groove 206. The inner wall of the second arc-shaped groove 208 is provided with a rubber pad, which facilitates the rotation of the Torx handle screw 202 to drive the limiting plate 201 to slide. Adjust the position of the limiting plate 201 and adjust the length of the puncture needle protruding from the support plate 203. Insert the puncture needle into the first arc-shaped groove 207 and the second arc-shaped groove 208. Insert the end of the puncture needle into the opening groove 206 and fit against the inner wall of the side of the opening groove 206. This facilitates the limitation of the puncture needle retraction during grinding by the limiting plate 201. The puncture needle is supported by the limiting plate 201 and the support plate 203. Then, the third electric push rod 205 is turned on to drive the pressure plate 204 to move down, so that the rubber pad on the inner wall of the second arc-shaped groove 208 squeezes the puncture needle, which facilitates the quick positioning of the puncture needle.

[0033] Working principle: Rotating the Torx handle screw 202 causes the limiting plate 201 to slide, facilitating the adjustment of the position of the limiting plate 201 and the length of the puncture needle protruding from the support plate 203. The puncture needle is inserted into the first arc-shaped groove 207 and the second arc-shaped groove 208, with the end of the puncture needle inserted into the opening groove 206 and fitting against the inner wall of the side of the opening groove 206. This allows the limiting plate 201 to restrict the puncture needle from retracting during grinding. The limiting plate 201 and the support plate 203 support the puncture needle. Then, the third electric push rod 205 is activated, causing the pressure plate 204 to move downwards, causing the rubber pad on the inner wall of the second arc-shaped groove 208 to squeeze the puncture needle, facilitating quick positioning of the puncture needle. The second electric push rod 8 is then activated to drive the connecting plate 5. The first electric push rod 7 rotates around its output shaft, driving the grinding mechanism 6 to rotate, which facilitates the adjustment of the grinding angle. The second electric push rod 8 slides on the side of the mounting block 4 via the slider 10, adapting to the vertical displacement of the second electric push rod 8. Then, the first electric push rod 7 and the second electric push rod 8 are activated simultaneously, driving the connecting plate 5 and the grinding mechanism 6 to move horizontally, which facilitates the adjustment of the position of the grinding disc 602 and the adjustment of the grinding thickness of the puncture needle tube. The distance between the puncture needle tube and the grinding disc 602 can be adjusted without removing the thickness of the puncture needle tube, which helps to reduce the workload of the workers. The linear motor 3 is activated to drive the mounting block 4 to move horizontally, which facilitates the adjustment of the position of the grinding mechanism 6, and the multiple puncture needle tubes in the puncture needle tube fixing mechanism 2 are ground sequentially.

[0034] The contents not described in detail in this specification are existing technologies known to those skilled in the art. All electrical appliances in this utility model are powered by an external power source or a built-in battery. No restrictions are placed on the model or specific type of any electrical appliance in this utility model. Those skilled in the art can clearly identify the applicable electrical appliance model, specific type, and power supply method based on common knowledge in the field.

[0035] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A device for grinding puncture needle tubes, characterized in that, include: The base (1) has a puncture needle fixing mechanism (2) on its upper side, a linear motor (3) on its upper side, a mounting block (4) on the movable end of the linear motor (3), a connecting plate (5) on one side of the mounting block (4), a grinding mechanism (6) on one side of the connecting plate (5), a first electric push rod (7) fixed on one side of the mounting block (4), and a second electric push rod (8) vertically sliding on one side of the mounting block (4). The output ends of the first electric push rod (7) and the second electric push rod (8) are hinged to one side of the connecting plate (5).

2. The puncture needle grinding device according to claim 1, characterized in that, A T-shaped slide (9) is provided on one side of the mounting block (4) along the height direction. A slider (10) is slidably fitted inside the T-shaped slide (9). The second electric push rod (8) is fixed on one side of the slider (10).

3. The puncture needle grinding device according to claim 1, characterized in that, Two protrusions (11) are provided on one side of the connecting plate (5), and the output ends of the first electric push rod (7) and the second electric push rod (8) are rotatably engaged between the two protrusions (11).

4. The puncture needle grinding device according to claim 1, characterized in that, A water tank (12) is provided on the upper side of the base (1), a water pump (13) is provided on one side of the water tank (12), and a nozzle (14) corresponding to the grinding mechanism (6) is connected to the output end of the water pump (13). A collection box (15) is provided on the upper side of the base (1).

5. The puncture needle grinding device according to claim 1, characterized in that, The grinding mechanism (6) includes a servo motor (601) located on one side of the connecting plate (5) and a grinding disc (602) located at the output end of the servo motor (601).

6. The puncture needle grinding device according to claim 1, characterized in that, The puncture needle fixing mechanism (2) includes a limiting plate (201) that is slidably fitted on the upper side of the base (1), a Torx handle screw (202) that is rotatably fitted on the base (1) and threadedly fitted with the limiting plate (201), a support plate (203) located on the upper side of the base (1), a pressure plate (204) that is slidably fitted on the upper side of the base (1), and two third electric push rods (205) located on the upper side of the base (1) for driving the pressure plate (204) to slide.

7. The puncture needle grinding device according to claim 6, characterized in that, The base (1) has a T-shaped groove (16) on the upper side. The lower part of the limiting plate (201) is a T-shaped plate structure. The lower part of the limiting plate (201) is slidably fitted in the T-shaped groove (16). One end of the plum blossom handle screw (202) is rotatably fitted on the inner wall of the T-shaped groove (16). There are multiple open slots (206) in a straight line array on one side of the limiting plate (201).

8. The puncture needle grinding device according to claim 7, characterized in that, The upper side of the support plate (203) is provided with a first arc-shaped groove (207) corresponding to the opening groove (206), and the bottom surface of the pressure plate (204) is provided with a second arc-shaped groove (208) corresponding to the opening groove (206). The inner wall of the second arc-shaped groove (208) is provided with a rubber pad.