Injection needle grinding equipment
By designing a grinding device for injection needles that uses multiple sleeves in conjunction with an electric grinder, the problem of low grinding efficiency in existing equipment has been solved, enabling simultaneous grinding of multiple needles and meeting the needs of large-scale production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-03-03
AI Technical Summary
Existing needle grinding equipment has low grinding efficiency and cannot process multiple needles at the same time, making it difficult to meet the needs of large-scale production.
A storage platform with multiple sleeves was designed. The bottom of the sleeves is cut at an angle and contacts the electric grinder. Combined with the pressure column and the limiting block, the position of the needle is fixed, enabling multiple needles to grind simultaneously.
It improved production efficiency, ensured uniform needle grinding, met the needs of mass production, and increased overall production capacity.
Smart Images

Figure CN223961059U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of needle polishing technology, and in particular to an injection needle polishing device. Background Technology
[0002] Injection needles are commonly used instruments in medical and laboratory settings, primarily for injecting liquids into the body or extracting samples. In the medical field, a high-quality needle can significantly reduce patient discomfort and improve the success rate of procedures. Therefore, the manufacturing process of injection needles requires grinding the tip to improve its sharpness, smoothness, and puncture performance.
[0003] Chinese utility model patent CN218533967U discloses a grinding device for needle processing, including a processing table. A movable plate is movably installed on the right side of the upper middle part of the processing table. A placement slot is opened at the upper right middle part of the movable plate. An extrusion block is movably installed inside the placement slot. Positioning arc openings are opened at the middle bottom of the placement slot and the middle bottom of the extrusion block. A fixing frame is installed on the middle right side of the upper middle part of the processing table by bolts. Although the device can change the grinding angle of the needle by adjusting the angle of the grinding disc when grinding the needle, the grinding efficiency of the device is low and it cannot process multiple needles at the same time. This limits its application in mass production and makes it difficult to meet the needs of large-scale production, thus affecting the overall capacity and production rhythm. Utility Model Content
[0004] In order to overcome the shortcomings of the prior art, this utility model provides an injection needle grinding device capable of batch operation.
[0005] The technical implementation scheme of this utility model is as follows: an injection needle grinding device, including a base plate and a bracket I disposed on the right side of the upper surface of the base plate, wherein an electric grinder is installed on the bracket I; it also includes a guide bracket disposed on the left side of the upper surface of the base plate, wherein two sliders are symmetrically slidably disposed on the guide bracket, and a platform with multiple sleeves is disposed between the two sliders, wherein a pad is fixedly disposed at the bottom of each sleeve, and the bottom of the sleeve is obliquely cut, and its oblique part is in contact with the electric grinder.
[0006] Optionally, a limit block is provided inside the sleeve.
[0007] Optionally, it also includes a bracket II disposed on the base plate and a limiting plate with multiple downward pressure columns, wherein the number and position of the downward pressure columns are consistent with the sleeve, and the downward pressure columns slide through the bracket II and slide into the corresponding sleeve.
[0008] Optionally, an elastic element is provided between the pressure column and the bracket II.
[0009] Optionally, the platform and the slider are in a rotational engagement.
[0010] Optionally, a collection frame is provided on the left side of the base plate.
[0011] This utility model has the following advantages: The design of the platform with multiple sleeves allows for the simultaneous accommodation and grinding of multiple needles, greatly improving production efficiency and meeting the needs of mass production. The pressure column works in conjunction with the limiting block inside the sleeve to ensure the needles are fixed in position during grinding, avoiding uneven grinding or damage caused by needle movement or rotation. The angled design at the bottom of the sleeve allows for better contact between the needles and the grinder, resulting in better grinding. The platform and slider rotate together; after grinding, rotating the platform allows the needles to fall into the collection box for storage. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0013] Figure 2 This is a partial structural schematic diagram of the present invention.
[0014] Figure 3 This is a schematic diagram of the internal structure of the sleeve of this utility model.
[0015] Figure 4 This is a schematic diagram of the shelf and sleeve of this utility model after they have been flipped over.
[0016] Figure 5 This is a schematic diagram of the structure of the limiting plate, the pressing column and the elastic element of this utility model.
[0017] In the above attached figures: 1: base plate, 2: bracket I, 21: electric grinder, 3: guide bracket, 31: slider, 4: shelf, 41: sleeve, 42: pad, 43: limiting block, 5: bracket II, 6: limiting plate, 61: pressing column, 62: elastic element, 7: collection frame, 8: needle. Detailed Implementation
[0018] References to embodiments herein mean that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0019] like Figures 1-5As shown, this embodiment of the utility model provides an injection needle polishing device, including a base plate 1 and a bracket I2 disposed on the right side of the upper surface of the base plate 1. An electric polisher 21 is mounted on the bracket I2. The electric polisher 21 is a belt polisher. (See attached image) Figure 1 From this angle, the abrasive strip is angled upwards and to the right to facilitate the grinding of an angled cutting edge at the bottom of the injection needle. See also Figure 1 A guide bracket 3 is also provided on the left side of the upper surface of the base plate 1, and two slide rails are symmetrically arranged on the upper part of the guide bracket 3. See Figure 2 Both slide rail sections have sliding sliders 31, and a shelf 4 is rotatably mounted between the two sliders 31. (See attached image) Figure 4 When slider 31 slides to the left end of the slide rail on guide bracket 3, the platform 4 can be flipped counterclockwise. A collection frame 7 is provided on the left side of the base plate 1. When the platform 4 is flipped, the polished injection needles inside will fall into the collection frame 7. (See also...) Figure 2 The shelf 4 is equipped with multiple sleeves 41; this embodiment describes fourteen sleeves as an example. (See attached image.) Figure 3 Each sleeve 41 has a fixed support 42 at its bottom, and each sleeve 41 contains three limiting blocks 43. When the needle 8 is placed inside the sleeve 41, the support 42 supports the needle 8, and the limiting blocks 43 lock the needle 8 in place, preventing it from rotating during polishing. See also Figure 3 The bottom of the sleeve 41 is cut at an angle, and the angle of the angled part is consistent with the angle of the abrasive belt on the electric grinder 21. The abrasive belt is close to the angled part of the sleeve 41 and grinds the needle 8 inside it.
[0020] like Figure 1 and Figure 5 As shown, in this embodiment of the utility model, it also includes a bracket II5 disposed on the base plate 1 and a limiting plate 6 with multiple downward pressing columns 61. The number of downward pressing columns 61 is the same as that of the sleeves 41, and the positions of the downward pressing columns 61 and the sleeves 41 are also corresponding, with each downward pressing column 61 corresponding to one sleeve 41. See reference. Figure 5 The pressing column 61 slides through the bracket II 5 and slides into the corresponding sleeve 41. An elastic element 62 is provided between the pressing column 61 and the bracket II 5. The elastic element 62 is a spring. When the pressing column 61 is inserted into the sleeve 41, it can abut against the needle 8 in the sleeve 41 under the action of the elastic element 62, and further limit the needle 8.
[0021] In this embodiment of the invention, initially, the slider 31 and the platform 4 are located at the left end of the slide rail portion of the guide bracket 3. At this time, the needles need to be inserted one by one into the sleeve 41, and the limiting block 43 is used to lock the needles so that they cannot rotate. Then, the limiting plate 6 and the pressing column 61 are pulled upward, causing the elastic element 62 to compress and store force. At the same time, the slider 31 and the platform 4 move to the right until the slider 31 reaches the right end of the slide rail portion of the guide bracket 3. Then the limiting plate 6 and the pressing column 61 are released, the elastic element 62 returns to its original state, and a downward force is applied to the pressing column 61, which then... Insert the needle into the corresponding sleeve 41 and further limit its position; when the slider 31 reaches the right end of the slide rail on the guide bracket 3, the inclined part at the bottom of the sleeve 41 just connects with the abrasive belt on the electric grinder 21. Then start the electric grinder 21 to grind the needle; after grinding, pull up the limiting plate 6 and the lower pressure column 61, and push the slider 31 and the platform 4 to slide to the left. When the slider 31 slides to the left end of the slide rail on the guide bracket 3, flip the platform 4 counterclockwise so that the ground injection needle falls into the collection box 7.
[0022] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.
Claims
1. An injection needle sharpening apparatus characterised in that: The utility model provides a kind of electric sander, including bottom plate (1) and the support I (2) of being arranged on the right part of the upper surface of bottom plate (1), electric sander (21) is installed on the support I (2), it further includes the guide support (3) of being arranged on the left part of the upper surface of bottom plate (1), two sliding blocks (31) are symmetrically arranged on the guide support (3), and the object table (4) with multiple sleeve pipes (41) is arranged between two sliding blocks (31), and the bottom of each sleeve pipe (41) is fixedly provided with pad bracket (42), the bottom of sleeve pipe (41) is inclined cutting processing, and its inclined portion is contacted with electric sander (21).
2. An apparatus for sharpening a hypodermic needle as defined in claim 1, wherein: The sleeve pipe (41) is provided with a limiting block (43) inside.
3. An apparatus for sharpening a hypodermic needle as defined in claim 2 wherein: It further includes the support II (5) of being arranged on the bottom plate (1) and the limiting plate (6) with multiple lower pressing columns (61), the number and position of lower pressing column (61) are consistent with sleeve pipe (41), and lower pressing column (61) is slid through support II (5) and is slid into corresponding sleeve pipe (41).
4. An apparatus for sharpening a hypodermic needle as defined in claim 3, wherein: The lower pressing column (61) is provided with an elastic member (62) between the support II (5).
5. An apparatus for sharpening a hypodermic needle as defined in claim 4, wherein: The object table (4) and the sliding block (31) are rotationally fitted.
6. An injection needle honing apparatus as defined in claim 5, characterized in that: The left part of the bottom plate (1) is provided with a collection frame (7).
Citation Information
Patent Citations
Grinding device for needle head machining
CN218533967U