Knife edge type needle for jewelry processing
By designing replacement, shock absorption, and protection mechanisms on the blade-edge needle, the problem of shortened service life caused by wear of the blade-edge needle is solved, realizing the detachable and stable use of the blade-edge needle, and improving its service life and practicality.
Patent Information
- Application Number
- CN202520121340.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-20
AI Technical Summary
The tip of existing kerfing needles used in jewelry processing is prone to wear after long-term use, affecting their service life and practicality.
A blade-shaped needle was designed, which includes a replacement mechanism, a shock-absorbing mechanism, and a protective mechanism. The replacement mechanism enables the blade head to be detached and fixed, the shock-absorbing mechanism reduces blade head wobbling, and the protective mechanism improves the stability of use.
This extends the service life of the blade-shaped needle, improves its practicality, and avoids the problem of shortened service life due to wear.
Smart Images

Figure CN223764096U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of jewelry technology, specifically to a cutting edge needle for jewelry processing. Background Technology
[0002] Jewelry can be broadly or narrowly defined. In a narrow sense, jewelry refers specifically to jade or gemstone products. In a broad sense, jewelry should include ornaments, handicrafts, or other collectibles made of gold, silver, and natural materials that possess a certain value. Hence, the ancient saying "gold and silver jewelry" distinguishes gold and silver from jewelry. With social and economic development, the concept of jewelry should be expanded to include gold, silver, and ornaments, in addition to natural and artificial gemstones. The industry dealing in these items is collectively called the jewelry industry. The scope of jewelry is much larger than the broad concept of gemstones. Broadly defined gemstones refer to raw materials suitable for cutting or carving into jewelry or handicrafts.
[0003] A search revealed an existing patent (publication number: CN217170341U) that discloses a blade-shaped needle for jewelry processing, comprising a needle handle and a fixing assembly. A threaded ring is fixedly connected to the right end of the needle handle, and an anti-slip strip is fixedly connected to the left surface of the needle handle. A groove is formed in the center of the right surface of the needle handle, and a hole is provided to the left of the groove. A locking groove is formed on the right side of the needle handle, and a locking rod is fitted into the locking groove. A rod is fitted into the hole, and a sliding hole is formed in the center of the rod's surface. A plate is fixedly connected to the right side of the rod, and a needle rod is fixedly connected to the right side of the plate. A needle tip is fixedly connected to the right side of the rod, and a blade is provided on the surface of the needle tip. A fixing ring is slidably connected to the left side of the rod. A fixing assembly for fixing the locking rod is located above the locking rod. This invention, through the cooperation of its various parts, allows for continued use of the needle if it breaks during use; only the needle tip needs to be replaced, without replacing the entire needle.
[0004] However, in the process of using existing jewelry processing cutting tools, the tip of the cutting tool is prone to wear after long-term use, which affects the subsequent use of the cutting tool and reduces its service life, thus greatly diminishing its practicality.
[0005] Therefore, a cutting edge needle for jewelry processing is proposed to address the above problems. Utility Model Content
[0006] (a) Technical problems to be solved
[0007] To address the shortcomings of existing technologies, this utility model provides a cutting edge needle for jewelry processing, which solves the problem mentioned in the background art that, during the processing of jewelry, the tip of the cutting edge needle is prone to wear after long-term use, which affects the subsequent use of the cutting edge needle, thereby reducing its service life and significantly diminishing its practicality.
[0008] (II) Technical Solution
[0009] To achieve the above objectives, this utility model provides the following technical solution: a cutting edge needle for jewelry processing, comprising a cutting body, a replacement mechanism provided on one side of the cutting body, a shock-absorbing mechanism provided inside the cutting body, and a protective mechanism provided on the surface of the cutting body;
[0010] The replacement mechanism includes a limiting groove a, which is formed on the surface of the blade body. A limiting rod a is provided inside the limiting groove a, a spring a is provided below the limiting rod a, a rotating block is provided below the spring a, and a fixing ring is provided on one side of the rotating block.
[0011] As a preferred embodiment, the surface of the blade body is provided with a groove a, and a slider a is provided inside the groove a.
[0012] As a preferred embodiment, the surface of the slider a is provided with a cutting head, and the surface of the cutting head is provided with a spring b.
[0013] As a preferred embodiment, a limiting rod b is provided on one side of the spring b, and a limiting groove b is formed on one side of the limiting rod b, the limiting groove b being formed on the surface of the fixing ring.
[0014] As a preferred embodiment, the shock absorption mechanism includes a telescopic rod, which is disposed on one side of the cutter head. A groove b is formed on the surface of the telescopic rod, and a slider b is disposed inside the groove b.
[0015] As a preferred embodiment, the surface of the slider b is provided with a telescopic sleeve, and a spring c is sleeved inside the telescopic sleeve, with the spring c located on one side of the telescopic rod.
[0016] As a preferred embodiment, the protective mechanism includes a handle, which is disposed on one side of the blade body. A threaded groove is formed on the surface of the handle, a threaded rod is provided inside the threaded groove, and an anti-slip pad is provided on one side of the threaded rod.
[0017] This utility model provides a cutting edge needle for jewelry processing. It has the following beneficial effects:
[0018] (1) The cutting edge needle for jewelry processing is equipped with a replacement mechanism. During the jewelry processing process, the rotating block can be rotated first. Under the action of the rotating block, the cutting head is rotated. Under the action of the spring a's extension and reset, the spring a drives the limiting rod a into the inner side of the limiting groove a, which can install the cutting head. This avoids the wear on the top of the cutting edge needle after long-term use during the jewelry processing process, which will affect the subsequent use of the cutting edge needle and thus affect its service life and greatly reduce its practicality.
[0019] (2) The cutting edge needle for jewelry processing is equipped with a replacement mechanism. During the jewelry processing process, the cutting head can be extended under the action of the slide groove a and the slider a. At the same time, under the extension and resetting action of the spring b, the limiting rod b is driven into the inner side of the limiting groove b to fix the cutting head. Attached Figure Description
[0020] Figure 1 This is a side view of the appearance structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the replacement mechanism structure of this utility model;
[0022] Figure 3 This is a schematic diagram of the shock absorption mechanism of this utility model;
[0023] Figure 4 This is a schematic diagram of the anti-slip mechanism of this utility model.
[0024] The components are as follows: 1. Blade body; 2. Changing mechanism; 201. Limiting groove a; 202. Limiting rod a; 203. Spring a; 204. Rotating block; 205. Fixing ring; 2011. Slide groove a; 2012. Slider a; 2013. Blade head; 2014. Spring b; 2015. Limiting rod b; 2016. Limiting groove b; 3. Shock absorption mechanism; 301. Telescopic rod; 302. Slide groove b; 303. Slider b; 304. Telescopic sleeve; 305. Spring c; 4. Protective mechanism; 401. Handle; 402. Threaded groove; 403. Threaded rod; 404. Anti-slip pad. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figure 1 and Figure 4 This utility model provides a technical solution: a cutting edge needle for jewelry processing, including a blade body 1, a replacement mechanism 2 provided on one side of the blade body 1, a shock absorption mechanism 3 provided inside the blade body 1, and a protective mechanism 4 provided on the surface of the blade body 1. The protective mechanism 4 includes a handle 401, which is located on one side of the blade body 1. A threaded groove 402 is formed on the surface of the handle 401, a threaded rod 403 is provided inside the threaded groove 402, and an anti-slip pad 404 is provided on one side of the threaded rod 403.
[0027] In the process of processing jewelry with a cutting edge needle, a replacement mechanism 2 is provided to prevent the tip of the cutting edge needle from wearing out after long-term use, which would affect its subsequent use and lifespan, thus greatly reducing its practicality.
[0028] Please see Figure 2 A cutting edge needle for jewelry processing includes a replacement mechanism 2 comprising a limiting groove a201 on the surface of a cutting body 1, a limiting rod a202 inside the limiting groove a201, a spring a203 below the limiting rod a202, a rotating block 204 below the spring a203, a fixing ring 205 on one side of the rotating block 204, a sliding groove a2011 on the surface of the cutting body 1, a slider a2012 inside the sliding groove a2011, a cutting head 2013 on the surface of the slider a2012, a spring b2014 on the surface of the cutting head 2013, a limiting rod b2015 on one side of the spring b2014, a limiting groove b2016 on one side of the limiting rod b2015, and a limiting groove b2016 on the surface of the fixing ring 205.
[0029] In the jewelry processing process, the rotating block 204 is rotated first. Under the action of the rotating block 204, the cutting head 2013 is rotated. Furthermore, under the extension and resetting action of the spring a203, the limiting rod a202 is driven into the inner side of the limiting groove a201, allowing the cutting head 2013 to be installed. This prevents the cutting head from becoming worn after long-term use during jewelry processing. Wear is likely to occur on the part, which will affect the subsequent use of the cutting edge needle and thus reduce its service life. This will greatly reduce the practicality of the cutting edge needle. Under the action of the slide groove a2011 and the slider a2012, the cutting head 2013 can be extended. At the same time, under the action of the extension and resetting of the spring b2014, the limiting rod b2015 is driven into the inner side of the limiting groove b2016 to fix the cutting head 2013.
[0030] Please see Figure 3 A cutting edge needle for jewelry processing includes a shock absorption mechanism 3 comprising a telescopic rod 301, which is disposed on one side of a cutting head 2013. A groove b302 is formed on the surface of the telescopic rod 301, and a slider b303 is disposed inside the groove b302. A telescopic sleeve 304 is disposed on the surface of the slider b303, and a spring c305 is sleeved inside the telescopic sleeve 304. The spring c305 is disposed on one side of the telescopic rod 301.
[0031] In the process of processing jewelry using a cutting edge type, a shock absorption mechanism 3 is provided. Under the action of the extension and return of the spring c305, the spring c305 drives the cutting head 2013 to extend and retract to reduce shock. At the same time, under the action of the extension rod 301 and the extension sleeve 304, the cutting head 2013 can be prevented from shaking.
[0032] The working principle of this utility model is as follows: During the processing of jewelry using a cutting edge needle, the rotating block 204 can be rotated first. Under the action of the rotating block 204, the cutting head 2013 is rotated. Under the extension and resetting action of the spring a203, the spring a203 drives the limiting rod a202 into the inner side of the limiting groove a201, which can install the cutting head 2013. This avoids the wear on the top of the cutting edge needle after long-term use during jewelry processing, which would affect the subsequent use of the cutting edge needle and thus reduce its service life. The impact will significantly reduce the practicality of the blade-shaped needle. Under the action of the slide groove a2011 and the slider a2012, the blade head 2013 can be extended. At the same time, under the action of the extension and return of the spring b2014, the spring b2014 drives the limiting rod b2015 into the inner side of the limiting groove b2016, which can fix the blade head 2013. Secondly, by setting the shock absorption mechanism 3, under the action of the extension and return of the spring c305, the spring c305 drives the blade head 2013 to extend and reduce shock. At the same time, under the action of the extension rod 301 and the extension sleeve 304, the blade head 2013 can be prevented from shaking.
[0033] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A blade edge type needle for jewelry processing, comprising a blade body (1), characterized in that: The cutter body (1) is provided with a replacement mechanism (2) on one side, the cutter body (1) is provided with a damping mechanism (3) inside, and the cutter body (1) is provided with a protection mechanism (4) on the surface; The replacement mechanism (2) comprises a limiting groove a (201), the limiting groove a (201) is opened on the surface of the cutter body (1), a limiting rod a (202) is arranged on the inner side of the limiting groove a (201), a spring a (203) is arranged below the limiting rod a (202), a rotating block (204) is arranged below the spring a (203), and a fixed ring (205) is arranged on one side of the rotating block (204).
2. A knife-edge point for use in the processing of jewelry, according to claim 1, characterized in that: The surface of the cutter body (1) is provided with a sliding groove a (2011), and the inner side of the sliding groove a (2011) is provided with a sliding block a (2012).
3. A knife-edge point for use in the processing of jewellery as claimed in claim 2, wherein: The surface of the sliding block a (2012) is provided with a tool bit (2013), and the surface of the tool bit (2013) is provided with a spring b (2014).
4. A knife-edge point for use in the processing of jewellery according to claim 3, characterised in that: The spring b (2014) is provided with a limiting rod b (2015) on one side, a limiting groove b (2016) is matched and opened on one side of the limiting rod b (2015), and the limiting groove b (2016) is opened on the surface of the fixed ring (205).
5. The knife-edge point for jewelry processing according to claim 1, characterized in that: The damping mechanism (3) comprises a telescopic rod (301), the telescopic rod (301) is arranged on one side of the tool bit (2013), the surface of the telescopic rod (301) is provided with a sliding groove b (302), and the inner side of the sliding groove b (302) is provided with a sliding block b (303).
6. A knife-edge point for use in the processing of jewelry, according to claim 5, wherein: The surface of the sliding block b (303) is provided with a telescopic sleeve (304), the inner side of the telescopic sleeve (304) is sleeved with a spring c (305), and the spring c (305) is arranged on one side of the telescopic rod (301).
7. The knife-edge point for jewelry processing according to claim 1, characterized in that: The protection mechanism (4) comprises a handle (401), the handle (401) is arranged on one side of the cutter body (1), the surface of the handle (401) is provided with a threaded groove (402), the inner side of the threaded groove (402) is provided with a threaded rod (403), and the threaded rod (403) is provided with a non-slip pad (404) on one side.
Citation Information
Patent Citations
Knife edge type needle for jewelry processing
CN217170341U