Sweeping needle for jewelry processing

Abstract

The utility model belongs to the technical field of jewelry processing, and relates to a sweeping type needle for jewelry processing, which comprises a processing head, the processing head consists of a main body and a plurality of nicking tools, the main body is a circular truncated cone, and the nicking tools are circumferentially distributed and uniformly fixed on the outer surface of the main body. The two ends of the nicking tool are flush with the corresponding end faces of the main body respectively, the sections of the two ends of the nicking tool are both obtuse triangles, one obtuse angle face of the nicking tool is fixedly connected with the main body, and an arc-shaped groove is formed in the obtuse angle edge of the nicking tool. The graver has the advantages that due to the fact that the main body is the circular truncated cone, the linear velocity of the large-diameter end of the main body is large, according to the law that the pressure intensity of the large-diameter end of the main body is small, cuttings can move towards the large-diameter face of the main body, then the cuttings are discharged from the large-diameter face of the main body, and the graver can continue cutting; and the situation of chip accumulation is reduced, repeated cleaning is not needed, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of jewelry processing, and relates to a profiling needle for jewelry processing. Background Technique

[0002] Jewelry refers to raw materials and semi-finished products of precious stones and precious metals, as well as wearing ornaments, handicraft ornaments and art collections made of raw materials and semi-finished products of precious stones and precious metals. When jewelry is processed, a processing needle is needed to perform micro-engraving on its shape, and the profiling needle is a commonly used needle for jewelry processing.

[0003] A profiling needle for jewelry processing disclosed in Chinese Patent CN217013013U includes a jewelry processing needle main body and a connecting block. A connecting block is arranged at the top of the jewelry processing needle main body, and a processing head is arranged at the top of the connecting block. The processing head adopts a triangular prism structure design, and the top end of the processing head is smaller than the bottom end, and the processing is carried out through the processing head.

[0004] This profiling needle uses the processing head to perform micro-engraving on jewelry. During the micro-engraving process, chips will be generated on the jewelry, and the chips are easy to accumulate in the gaps on the processing head to generate chip accumulation. Excessive chip accumulation requires workers to clean it frequently, which affects the processing progress.

[0005] To solve the above problems, the utility model proposes a profiling needle for jewelry processing. Content of the Utility Model

[0006] To solve the problems in the background technique, the utility model proposes a profiling needle for jewelry processing.

[0007] To achieve the above purpose, the technical solution adopted by the utility model is as follows: it includes a processing head, the processing head is composed of a main body and several cutters, the main body is a frustum of a cone, and several cutters are evenly distributed in a circumferential manner and fixedly arranged on the outer surface of the main body;

[0008] Both ends of the cutter are flush with the corresponding end faces of the main body. The cross-sectional shapes of the two ends of the cutter are both obtuse triangles. One of the obtuse faces of the cutter is fixedly connected to the main body, and an arc-shaped groove is arranged on the obtuse edge of the cutter.

[0009] Furthermore, one end of the main body is coaxially and fixedly connected with a connecting shaft, the other end of the connecting shaft is coaxially and fixedly connected with a needle neck, and the other end of the needle neck is coaxially and fixedly connected with a needle handle.

[0010] Furthermore, the diameter of the surface of the main body connected to the connecting shaft is larger than the diameter of the other surface of the main body, and the cross-section of the cutter gradually decreases from the surface of the main body with a larger diameter to the other surface.

[0011] Further, the needle neck is a frustum of a cone, and the diameter of the surface of the needle neck connected to the connecting shaft is smaller than that of the other surface.

[0012] Further, the three side surfaces of the cutter are respectively a first plane, a second plane, and a third plane. The second plane and the third plane are the two obtuse surfaces of the cutter, and the arc-shaped groove is opened at the connection of the second plane and the third plane.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The profiling needle for jewelry processing is provided with a plurality of cutters. When using the cutters to micro-carve jewelry, since the cutters will rotate with the main body, the chips generated will be located between two adjacent cutters. Since the main body is a frustum of a cone, the linear velocity of the end with a larger diameter of the main body is large. According to the law that the pressure is small where the fluid velocity is large, the pressure at the end with a larger diameter of the main body is small, and the chips will move towards the surface with a larger diameter of the main body, so that the chips are discharged from the surface with a larger diameter of the main body, enabling the cutters to continue cutting, reducing the accumulation of chips, not requiring multiple cleanings, and improving work efficiency.

[0015] 2. The profiling needle for jewelry processing is provided with an arc-shaped groove on the cutter. Therefore, when rotating, the chips will be concentrated in the arc-shaped groove, and then most of the chips will move along the arc-shaped groove, facilitating the discharge of the chips and reducing the situation of chip splashing.

[0016] 3. The profiling needle for jewelry processing is provided with a plurality of cutters, and the plurality of cutters are evenly fixed on the outer surface of the main body in a circumferential distribution, so that when cutting, the cutters can directly contact the jewelry, and the chips are more likely to move along the gaps between the cutters. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 is a structural schematic diagram of the first end of the main body of the utility model;

[0019] Figure 3 is a structural schematic diagram of the second end of the main body of the utility model;

[0020] Figure 4 is a structural schematic diagram of the cutter of the utility model.

[0021] In the figure: 1, needle handle; 2, needle neck; 3, connecting shaft; 4, main body; 5, cutter; 501, arc-shaped groove; 502, first plane; 503, second plane; 504, third plane. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] As Figures 1 - 4 shown, the technical solution adopted by the present invention is as follows: A profiling needle for jewelry processing includes a processing head, and the processing head is composed of a main body 4 and a plurality of cutting tools 5. The main body 4 is a frustum of a cone, and a plurality of cutting tools 5 are evenly distributed in a circumferential manner and fixedly arranged on the outer surface of the main body 4. The main body 4 and the plurality of cutting tools 5 form an umbrella-like structure.

[0024] One end of the main body 4 is coaxially and fixedly connected to a connecting shaft 3, the other end of the connecting shaft 3 is coaxially and fixedly connected to a needle neck 2, and the other end of the needle neck 2 is coaxially and fixedly connected to a needle handle 1. When in use, one end of the needle handle 1 is fixedly connected to the output shaft of the motor, so that the motor drives the main body 4 to rotate, and the cutting tool 5 cuts the jewelry.

[0025] The needle neck 2 is a frustum of a cone, and the diameter of the surface of the needle neck 2 connected to the connecting shaft 3 is smaller than that of the other surface. This increases the strength of the entire needle and reduces the risk of tool breakage.

[0026] The diameter of the surface of the main body 4 connected to the connecting shaft 3 is larger than that of the other surface of the main body 4, and the cross-section of the cutting tool 5 gradually decreases from the surface with a larger diameter of the main body 4 to the other surface. The cutting tool 5 processes the jewelry from the end with a smaller cross-section.

[0027] Both ends of the cutting tool 5 are flush with the corresponding end faces of the main body 4, and the cross-sectional shapes of the two ends of the cutting tool 5 are both obtuse triangles. One of the obtuse faces of the cutting tool 5 is fixedly connected to the main body 4, and an arc-shaped groove 501 is formed on the obtuse edge of the cutting tool 5. The arc-shaped groove 501 is arranged along the length direction of the main body 4.

[0028] The three side faces of the cutting tool 5 are respectively a first plane 502, a second plane 503, and a third plane 504. The second plane 503 and the third plane 504 are the two obtuse faces of the cutting tool 5, and the arc-shaped groove 501 is formed at the connection of the second plane 503 and the third plane 504. This makes the arc-shaped groove 501 located at the outer surface of the main body 4, facilitating the chips to move into the arc-shaped groove 501.

[0029] The third plane 504 is fixedly connected to the main body 4, and the side edge at the connection of the second plane 503 and the first plane 502 is the cutting edge.

[0030] Working principle:

[0031] During use, one end of the needle handle 1 is fixedly connected to the output shaft of the motor. Start the motor, and the output shaft drives the needle handle 1 to rotate, causing the needle neck 2, the connecting shaft 3, and the main body 4 to rotate, and several cutters 5 rotate together.

[0032] Move the end with a smaller cross-section of the main body 4 to the jewelry, and use the cutting edges of the cutters 5 at this cross-section to cut the jewelry.

[0033] During cutting, the cutter 5 and the main body 4 gradually extend into the jewelry, and there will be chips between two adjacent cutters 5, and the chips will move into the arc-shaped groove 501.

[0034] Since the main body 4 is a frustum of a cone and the rotational speed of the main body 4 is constant, the linear velocity of the end with a larger diameter of the main body 4 is large, and the linear velocity of the end with a smaller diameter of the main body 4 is small. According to the law that the pressure is low where the fluid flow rate is large, the pressure at the end with a larger diameter of the main body 4 is low, and the pressure at the end with a smaller diameter of the main body 4 is high. Therefore, the chips will move towards the side with a larger diameter of the main body 4, and then the chips are discharged from the side with a larger diameter of the main body 4, so that most of the chips are discharged along the arc-shaped groove 501, reducing the situation of chip splashing. Therefore, during the cutting process, the chips are discharged, and the cutter 5 can continue to cut, reducing the situation of chip accumulation.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A sweeping needle for jewelry processing, characterized in that: The processing head comprises a main body (4) and a plurality of carving knives (5), the main body (4) is a truncated cone, and the plurality of carving knives (5) are evenly distributed in a circumference and fixed on the outer surface of the main body (4); The two ends of the carving knife (5) are respectively flush with the end faces of the corresponding main body (4); the cross-sectional shapes of the two ends of the carving knife (5) are both obtuse triangles; one of the obtuse angled faces of the carving knife (5) is fixedly connected to the main body (4); and an arc groove (501) is provided on the obtuse angled side of the carving knife (5).

2. The jewelry processing sweeping needle according to claim 1, characterized in that: One end of the main body (4) is coaxially fixedly connected to a connecting shaft (3), the other end of the connecting shaft (3) is coaxially fixedly connected to a needle neck (2), and the other end of the needle neck (2) is coaxially fixedly connected to a needle handle (1).

3. The jewelry processing sweeping needle according to claim 2, characterized in that: The diameter of one side of the main body (4) connected to the connecting shaft (3) is larger than the diameter of the other side of the main body (4), and the cross section of the carving knife (5) gradually decreases from the side with the larger diameter of the main body (4) to the other side.

4. The jewelry processing sweeping needle according to claim 2, characterized in that: The needle neck (2) is a truncated cone, and the diameter of one side of the needle neck (2) connected to the connecting shaft (3) is smaller than the diameter of the other side.

5. The jewelry processing sweeping needle according to claim 1, characterized in that: The three side surfaces of the carving knife (5) are respectively a first plane (502), a second plane (503), and a third plane (504); the second plane (503) and the third plane (504) are two obtuse-angled surfaces of the carving knife (5); and the arc groove (501) is provided at the connection between the second plane (503) and the third plane (504).

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