Multifunctional polishing head for nail art and method for producing the same

Abstract

This application relates to the field of nail art tools and discloses a multi-functional nail art polishing head and a manufacturing method thereof, including a bit and a shank. The bit has a circumferential sidewall with a plurality of first spiral grooves formed at intervals, and a rack formed between each pair of adjacent first spiral grooves. A radial cross-section of the bit defines a plurality of groups of large tooth segments, each consisting of a plurality of racks, along the circumferential direction of the bit. Within each group of large tooth segments, the arrangement density of the racks varies from sparse to dense, from dense to sparse, or alternates between dense and sparse along the circumferential direction of the bit. A manufacturing method for a multi-functional nail art polishing head is also disclosed, including steps S1 of machining the bit and the shank, S2 of forming a plurality of first spiral grooves, and S3 of forming a plurality of second spiral grooves. By using blades with different arrangement densities for grinding, rough grinding and fine grinding can be performed simultaneously with the bit, eliminating the need to continually replace the nail art polishing head and making it easier for users to remove nail art accessories with different hardnesses.

Description

Technical Field

[0001] This application relates to the field of nail art tools, and particularly to a multi-functional grinding head for nail art and a method for producing the same.

Background Art

[0002] As the quality of people's life continues to improve, the beauty industry also tends to develop by leaps and bounds. The requirements for beauty products are increasing, and nail art is no exception. As the patterns and styles of nail art increase, it has become difficult for existing grinding heads for nail art to meet the market requirements any further in order to achieve better shaping effects and convenience.

[0003] Currently, a grinding head for nail art includes a fixedly connected bit and a shank. The shank is removably and fixedly attached to a nail art device. The nail art device drives the bit to rotate with the shank and uses the bit to grind and remove nail art accessories (such as hard gel, soft gel, and base coat). A plurality of grinding teeth are spaced apart on the bit. The grinding teeth are provided obliquely along the rotation direction of the bit. Bits with different tooth spacings are used in different grinding situations. When the outer diameter of the grinding head is the same, if the tooth spacing is small, the number of teeth is large, and the sharpness during use is small, which is suitable for precision machining and small amounts of grinding. If the tooth spacing is large, the number of teeth is small, and the sharpness during use is large, so it is suitable for rough machining and large amounts of grinding.

[0004] When a user removes a nail art accessory, often first rough machining and grinding are performed with a grinding head having a large tooth spacing, and then the grinding head for nail art is replaced and a grinding head with a small tooth spacing is used for precision machining and grinding. Only after this can the hard gel, soft gel, and base coat be removed. In such a method, since the user needs to continuously replace the grinding head for nail art, the removal may be inconvenient in some cases.

Summary of the Invention

[0005] This invention provides a multi-functional nail art polishing head and a method for producing the same, in order to enable users to easily remove nail art accessories of different hardness levels. [Means for solving the problem]

[0006] In the first aspect, the multi-functional nail art polishing head provided in this application employs the following technical solutions. A multi-functional polishing head for nail art, comprising a bit and a shank, wherein the circumferential sidewall of the bit has a plurality of first helical grooves spaced apart, a rack is formed between each pair of adjacent first helical grooves of the bit, and in the radial cross-section of the bit, a plurality of groups of large tooth segments, each consisting of a plurality of racks, are formed along the circumferential direction of the bit, and in one group of the large tooth segments, the arrangement density of the racks becomes sparse to dense, or dense to sparse, or sparse and dense intersect along the circumferential direction of the bit.

[0007] By using the above technical solution, when processing and grinding with a polishing head for nail art, the nail art equipment drives and rotates the bit with the shank, and the bit drives and rotates multiple groups of large tooth segments. Because the rack arrangement density in each group of large tooth segments is different, the bit can perform rough grinding and precision grinding simultaneously. Furthermore, there is no need to constantly change the polishing head for nail art, and the user can easily remove nail art accessories of different hardness levels.

[0008] Preferably, a plurality of second helical grooves are opened at intervals in the circumferential side wall of the bit, the helical direction of the second helical grooves is opposite to the helical direction of the first helical groove, one rack is divided into a plurality of blades by the plurality of second helical grooves, and each blade is provided symmetrically with respect to a line connecting its cutting edge to the bit axis.

[0009] By using the above technical solution, one rack is divided into multiple blades by a second helical groove, and the cutting edge length of the rack is shortened, resulting in smaller grinding chips. Furthermore, the second helical groove facilitates chip removal. Additionally, because the blades are arranged symmetrically along the line of symmetry, the bit can be ground in a reciprocating motion.

[0010] Preferably, one group of the large tooth segments comprises a plurality of sequentially arranged groups of small tooth segments, each of which consists of a certain number of racks, the pitch of two adjacent racks within each group of the small tooth segment is the same, and the rack arrangement density of different small tooth segments is different.

[0011] By using the above technical solution, when the large tooth segments of each group rotate and grind, multiple groups of small tooth segments with different arrangement densities are sequentially ground, and the length of the small tooth segment and the number of small tooth segments of different lengths are determined by the number of racks in any one group of small tooth segments. If the small tooth segments with a sparse rack arrangement density are long, the degree of rough grinding can be improved, and if the small tooth segments with a dense rack arrangement density are long, the degree of precision grinding can be improved, thereby allowing adjustment of the degree of rough grinding or precision grinding in the large tooth segments of each group, and further improving the applicability of the polishing head for nail art.

[0012] Preferably, in different large tooth segments, the number of racks corresponding to the small tooth segments is the same, and the arrangement rules for different large tooth segments are the same.

[0013] By using the above technical solution, the arrangement density of large tooth segments and the number of small tooth segment racks are the same in each group, resulting in the same grinding effect for multiple groups of large tooth segments, and further improving the grinding efficiency of the polishing head for nail art.

[0014] Preferably, a support portion is formed on the side wall of the blade near the first helical groove, projecting outward, and the support portion is provided along the helical direction of the first helical groove.

[0015] By using the above technical solution, the structural strength of the blade is increased by the support part, resulting in a blade that is both sharp and resistant to damage.

[0016] Preferably, the tooth height of the rack increases with increasing rack sparseness, and the tooth height of the rack decreases with increasing rack density.

[0017] By using the above technical solution, the larger the pitch between the blades, the greater the height of the blade teeth and the wider the base of the blade, thereby increasing the structural strength of the blade.

[0018] Preferably, the cross-section of the first helical groove has an inverted step shape.

[0019] By using the above technical solution, the reverse-staircase-shaped first helical groove increases the tooth groove width between adjacent blades, which makes it less likely for grinding debris to get stuck in the first helical groove, and also makes it easier to clean the debris in the first helical groove after using the nail art polishing head.

[0020] Preferably, the pitch between two adjacent racks is proportional to the depth of the first helical groove.

[0021] By using the above technical solution, the larger the pitch between two adjacent racks, the deeper the first helical groove between the two adjacent racks becomes. This results in a higher tooth height for the cutting edge, increasing the structural strength of the cutting edge and making it less susceptible to damage during rough grinding.

[0022] Preferably, the angle of the helical angle between the first helical groove and the second helical groove is 30 to 120°.

[0023] In a second aspect, the present invention provides a method for producing a multi-functional polishing head for nail art, employing the following technical solutions. A method for producing a multi-functional polishing head for nail art, comprising: step S1 of processing the shank and bit into a stepped shape using the above-mentioned multi-functional polishing head for nail art; and step S2 of opening multiple first helical grooves in the bit and forming multiple racks in the bit.

[0024] By using the above technical solution, a polishing head for nail art can be manufactured by first opening multiple first helical grooves in the bit using a machine tool, thereby increasing the production efficiency of polishing heads for nail art.

[0025] Preferably, in step S2, in S2.1, a plurality of first spiral grooves are opened at equal intervals along the circumferential direction of the bit to form a plurality of racks, and the plurality of racks are divided into a plurality of groups of large tooth segments. In S2.2, in one group of large tooth segments, the plurality of racks constitute a plurality of groups of small tooth segments, and the first small tooth segment is composed of several racks. In S2.3, in the second small tooth segment, each time one rack is covered, a second spiral groove is opened, and the depth of the second spiral groove is greater than that of the first spiral groove. In S2.4, in the third small tooth segment, each time two racks are covered, a third spiral groove is opened, and the depth of the third spiral groove is greater than that of the second spiral groove. In S2.5, referring to steps S2.3 and S2.4, until the processing of one group of large tooth segments is completed and the plurality of groups of small tooth segments are arranged in order or disorder along the circumferential direction of the bit, fourth spiral grooves, fifth spiral grooves, etc. with a greater depth of the tooth groove are opened. In S2.6, steps S2.3 to S2.5 are repeated to process the remaining large tooth segments.

[0026] By using the above technical solution, after first opening the first spiral groove to form a plurality of racks of the same size, based on the plurality of racks, the second spiral groove, the third spiral groove, etc. are opened, so that racks with different arrangement densities and tooth heights can be processed more accurately and quickly on the bit.

[0027] Preferably, in steps S2.3 to S2.5, after opening the second spiral groove, the third spiral groove, and the fourth spiral groove, support portions are formed on the side walls of the blades on both sides of the spiral groove.

[0028] By using the above technical solution, after opening the second spiral groove, the third spiral groove, and the fourth spiral groove, support portions can be formed on the side walls of the blades on both sides of the spiral groove, which facilitates the processing of the bit.

[0029] Preferably, further, it includes step S3 of opening a plurality of second spiral grooves intersecting the first spiral groove on the bit.

[0030] By using the above technical solution, one rack is divided into multiple blades by a second helical groove, and the cutting edge length of the rack is shortened, resulting in smaller grinding chips and easier chip removal by the second helical groove. [Effects of the Invention]

[0031] In summary, this application has at least one beneficial technical effect. 1. By driving and rotating blades with different arrangement densities using a bit, rough grinding and precision grinding can be performed simultaneously with the bit, eliminating the need to constantly change the polishing head for nail art, thereby making it easier for the user to remove nail art accessories with different hardness levels. 2. Multiple groups of small tooth segments constitute a large tooth segment. When the large tooth segment of each group rotates and grinds, multiple groups of small tooth segments with different arrangement densities are ground sequentially. The length of the small tooth segment and the number of racks in any one group of small tooth segments are determined by the number of racks in that small tooth segment, and the different lengths of the small tooth segments are determined. This allows for adjustment of the degree of rough grinding or precision grinding of the large tooth segment of each group, and further improves the applicability of the polishing head for nail art. 3. By using a reverse-staircase-shaped first helical groove, the tooth groove width between adjacent blades is increased, which makes it less likely for grinding debris to get stuck in the first helical groove, and also makes it easier to clean debris from the first helical groove after using the nail art polishing head. [Brief explanation of the drawing]

[0032] [Figure 1] This is a schematic diagram of the overall structure of the multi-functional nail art polishing head in Embodiment 1 of the present invention. [Figure 2] This is a cross-sectional view showing the bit of the multi-functional nail art polishing head in Embodiment 1 of the present application, with the first helical groove open. [Figure 3]This is a cross-sectional view showing the bit of the multi-functional nail art polishing head in Embodiment 2 of the present application, with the first helical groove open. [Figure 4] This is a cross-sectional view showing the bit of the multi-functional nail art polishing head in Embodiment 3 of the present application, with the first helical groove open. [Figure 5] This is a schematic diagram showing different bit shapes protruding from the multi-functional nail art polishing head in Embodiment 4 of the present application. [Figure 6] This is a flowchart of the production method for a multi-functional polishing head for nail art in Embodiment 5 of the present invention. [Figure 7] This is a specific flowchart of step S2 of the production method for a multifunctional nail art polishing head in Embodiment 5 of the present invention. [Figure 8] This is a cross-sectional view of the bit after processing is completed in step S2 of the production method for a multifunctional nail art polishing head in Embodiment 5 of the present application. [Explanation of symbols]

[0033] 1...bit, 2... Shank, 3...first helical groove, 31...1 spiral groove, 32...No. 2 spiral groove, 33...No. 3 spiral groove, 34...No. 4 spiral groove, 4... racks, 41...Blade, 5...Large tooth segment, 51...Small tooth segment, 6...Second spiral groove, 7...Support part. [Modes for carrying out the invention]

[0034] The present application will be described in more detail below with reference to Figures 1-8.

[0035] (Example 1) The embodiments of this application disclose a multi-functional polishing head for nail art.

[0036] Referring to Figure 1, the polishing head for multi-functional nail art includes a bit 1 and a shank 2, the bit 1 being cylindrical and the shank 2 being rod-shaped, the shank 2 being coaxially inserted into the end of the bit 1 and welded to the bit 1.

[0037] Referring to Figures 1 and 2, a first helical groove 3 is opened on the outer wall of bit 1 along its axial direction, the first helical groove 3 is a right-handed helical groove, multiple first helical grooves 3 are opened, the multiple first helical grooves 3 are opened at intervals along the circumferential direction of bit 1, and a left-handed helical rack 4 is formed between any two adjacent first helical grooves 3.

[0038] Referring to Figure 2, in the radial cross-section of bit 1, multiple groups of large tooth segments 5 are sequentially arranged in the circumferential direction of the outer wall of bit 1. Each group of large tooth segments 5 is composed of multiple groups of small tooth segments 51 arranged sequentially, and each group of small tooth segments 51 is composed of several racks 4. In this embodiment, there are a total of six groups of large tooth segments 5 around the circumference of the outer wall of bit 1, and each group of large tooth segments 5 is composed of four groups of small tooth segments 51, and each group of small tooth segments 51 is composed of two racks 4.

[0039] Along the counterclockwise direction (see Figure 2), the pitch of the two racks 4 gradually decreases in the four groups of small tooth segments 51, thereby changing the arrangement density of the racks 4 in the one large tooth segment 5 from sparse to dense. When machining and grinding with a nail art polishing head, the nail art equipment drives the bit 1 with the shank 2 to rotate, and the bit 1 drives the six groups of large tooth segments 5 to rotate synchronously. Because the arrangement density of the racks 4 differs in each group of large tooth segments 5, rough grinding and precision grinding can be performed simultaneously with the bit 1. Furthermore, there is no need to constantly change the nail art polishing head, making it easier for nail artists to remove nail art accessories of different hardness levels.

[0040] In the radial cross-section of bit 1, a line of symmetry is formed by connecting the cutting edge of rack 4 to the center of bit 1, and the tips of each rack 4 are all provided in a mirror-image symmetry along the line of symmetry. Compared to conventional bits 1 that can only move and grind in one direction, the symmetrical arrangement of rack 4 allows bit 1 to move back and forth on the nail during grinding, and furthermore, makes it easier for nail artists to quickly remove nail art accessories.

[0041] The depth of the first helical groove 3 is proportional to the distance between the racks 4. The denser the arrangement of the racks 4 in a large tooth segment 5, the smaller the pitch between two adjacent racks 4, and the shallower the first helical groove 3 between two adjacent racks 4. Conversely, the sparser the arrangement of the racks 4 in a large tooth segment 5, the greater the distance between two adjacent racks 4, and the deeper the first helical groove 3 between two adjacent racks 4.

[0042] The more sparsely the racks 4 are arranged, the deeper the first helical groove 3 becomes, the higher the tooth height of the corresponding rack 4 becomes, and the wider the base of the rack 4 becomes, further increasing the structural strength of the rack 4. When rough grinding is performed with a more sparsely arranged rack 4, the structural strength of the rack 4 with a wider base is higher, and furthermore, damage to the rack 4 is less likely to occur.

[0043] A support portion 7 is integrally molded along the helical direction of the first helical groove 3 in the middle of the side wall of the rack 4 near the first helical groove 3. In the radial cross-section of the bit 1, the support portion 7 is located on the tooth surface of the rack 4, extends away from the rack 4, the width of the support portion 7 on the side closer to the rack 4 is greater than the width of the side further away from the rack 4, and the end of the support portion 7 further away from the rack 4 is acutely angled. The support portion 7 increases the structural strength of the rack 4, thereby making the rack 4 less susceptible to damage.

[0044] The cross-section of the first helical groove 3 is in an inverted step shape, and the depth of the first helical groove 3 increases, as does the area of ​​the inverted step shape of the cross-section of the first helical groove 3. The inverted step shape of the first helical groove 3 increases the width of the tooth grooves between adjacent blades 41, making it less likely for grinding debris to get stuck in the first helical groove 3, and making it easier to clean the debris in the first helical groove 3 after using the nail art polishing head. Also, the more sparsely the racks 4 are arranged, the larger the grinding debris becomes, and in this case, a deeper first helical groove 3 makes it easier to discharge larger debris.

[0045] Referring to Figure 1, a second helical groove 6 is opened on the outer wall of bit 1 along its axial direction. The second helical groove 6 is a left-handed helical groove, the angle between the first helical groove 3 and the second helical groove 6 in the helical direction is 30 to 120°, and the depth of the second helical groove 6 is greater than the depth of the first helical groove 3. Multiple second helical grooves 6 are opened, and these multiple second helical grooves 6 are opened at equal intervals along the circumferential direction of bit 1. Each rack 4 is divided into multiple blades 41 by these multiple second helical grooves 6.

[0046] The second helical groove 6 divides the rack 4 into multiple blades 41, shortening the length of the blade tips of the rack 4. As the bit 1 rotates, the nail art accessory is ground by each blade 41 with a shorter blade tip, resulting in smaller grinding debris, which makes it less likely for the debris to get stuck in the first helical groove 3. In addition, during grinding, the grinding debris can be discharged from the bit 1 through the deeper second helical groove 6, further reducing the likelihood of debris getting stuck in the first helical groove 3.

[0047] The principle of implementation of Embodiment 1 of the present invention is as follows: When processing and grinding using a nail art polishing head, the nail art equipment drives the bit 1 with the shank 2 to rotate, and the bit 1 drives six groups of large tooth segments 5 to rotate synchronously. Due to the different arrangement density of racks 4 in each group of large tooth segments 5, rough grinding and precision grinding can be performed simultaneously with the bit 1, thereby eliminating the need to continuously change the nail art polishing head. Due to the symmetrical arrangement of racks 4, the bit 1 can move back and forth on the nail during grinding. The larger the pitch between the blades 41, the greater the tooth height of the blades 41, thereby increasing the structural strength of the blades 41. This makes it easier for nail artists to quickly and stably remove nail art accessories of different hardness levels.

[0048] (Example 2) Referring to Figure 3, the differences between this embodiment and Embodiment 1 are as follows: There are a total of three groups of large tooth segments 5 around the circumference of the outer wall of bit 1. Each group of large tooth segments 5 is composed of four groups of small tooth segments 51. Along the counterclockwise direction (see Figure 2), the first group of small tooth segments 51 consists of two racks 4, the second group of small tooth segments 51 consists of three racks 4, the third group of small tooth segments 51 consists of four racks 4, and the fourth group of small tooth segments 51 consists of five racks 4.

[0049] For each direction from the first group of small tooth segments 51 to the fourth group of small tooth segments 51, the pitch between two adjacent racks 4 within the small tooth segment 51 gradually decreases, and in any one small tooth segment 51, the pitch between two adjacent racks 4 is the same. In one group of large tooth segments 5, along the counterclockwise direction, the arrangement density of the racks 4 becomes sparse to dense, and the number of racks 4 within the four small tooth segments 51 increases.

[0050] The length of the small tooth segment 51 and the number of small tooth segments 51 of different lengths are determined by the number of racks 4 in any group of small tooth segments 51, thereby allowing adjustment of the degree of rough grinding or precision grinding of the large tooth segment 5 in each group. When grinding with bit 1, a small number of sparsely spaced racks 4 and a large number of densely spaced racks 4 are possible. Furthermore, bit 1 can achieve rough grinding, is more suitable for precision grinding, and can improve the applicability of polishing heads for nail art.

[0051] The principle of implementation of Embodiment 2 of the present invention is as follows: When the large tooth segments 5 of each group rotate and grind, the small tooth segments 51 of multiple groups with different arrangement densities are sequentially ground, and the length of the small tooth segments 51 and the number of small tooth segments 51 of different lengths are determined by the number of racks 4 in any one group of small tooth segments 51, thereby allowing adjustment of the degree of rough grinding or precision grinding of the large tooth segments 5 of each group, and further improving the applicability of the polishing head for nail art.

[0052] (Example 3) Referring to Figure 4, the differences between this embodiment and Embodiment 1 are as follows: Along the clockwise direction (see Figure 4), the pitch between two racks 4 in the first group of small tooth segments 51 is smaller than the distance between two racks 4 in the second group of small tooth segments 51, the pitch between two racks 4 in the second group of small tooth segments 51 is smaller than the distance between two racks 4 in the third group of small tooth segments 51, the pitch between two racks 4 in the third group of small tooth segments 51 is larger than the distance between two racks 4 in the fourth group of small tooth segments 51, and the pitch between two racks 4 in the fourth group of small tooth segments 51 is larger than the pitch between two racks 4 in the first group of small tooth segments 51 in the next large tooth segment 5.

[0053] The four groups of small tooth segments 51 within the first group of large tooth segments 5 and the first group of small tooth segments 51 within the next group of large tooth segments 5 are arranged symmetrically with respect to the center line of the third group of small tooth segments 51 within the first group of large tooth segments 5 as the axis of symmetry. In the radial cross-section of bit 1, along the circumferential direction of the cross-section, the arrangement density of the blades 41 is either a dense, sparse, dense, sparse alternating arrangement or a sparse, dense, sparse, dense alternating arrangement.

[0054] The principle of implementation of Embodiment 3 of the present invention is as follows: Along the circumferential direction of the cross-section of bit 1, the arrangement density of the blades 41 is either a dense, sparse, dense, sparse alternating arrangement, or a sparse, dense, sparse, dense alternating arrangement. This allows for a smoother transition between rough grinding and precision grinding when grinding with bit 1, and further improves the grinding effect of bit 1.

[0055] (Example 4) Referring to Figure 5, the differences between the embodiment of the present application and Embodiment 1 are as follows: Bit 1 may also be provided in other shapes such as A1 to A11, and Bit 1 is always mounted coaxially with Shank 2. Here, bit A1 is cylindrical, bit A2 is cylindrical with a rounded corner at the end of bit 1, bit A3 is cylindrical with a chamfer at the end of bit 1, bit A4 has a cylindrical base and a hemispherical top with a polished surface, bit A5 has a cylindrical base and a hemispherical top with a spiral groove on its surface, bit A6 is frustoconical, bit A7 is frustoconical with a rounded corner at the end of bit 1, bit A8 has a frustoconical base and a hemispherical top with a polished surface, bit A9 has a frustoconical base and a hemispherical top with a spiral groove on its surface, bit A10 is semiellipsoidal, and bit A11 is semiellipsoidal with a flat end of bit 1.

[0056] (Example 5) Embodiments of the present invention disclose a method for producing a multi-functional polishing head for nail art.

[0057] Referring to Figures 6, 7, and 8, a method for producing a multi-functional nail art polishing head is provided, using the above-mentioned multi-functional nail art polishing head, and including the following processing steps. In S1, the shank 2 is first inserted into the end of the bit 1, and then the shank 2 is welded to the bit 1, or a metal rod is milled into a single piece, the bit 1 and shank 2, and the bit 1 and shank 2 have a stepped shape.

[0058] In S2, multiple first helical grooves 3 are opened in bit 1, and multiple racks 4 are formed in bit 1.

[0059] In S2.1, a digitally controlled machine tool is used to open 60 equally spaced helical grooves 31 with a depth of 0.23 mm along the circumferential direction of bit 1 to form 60 racks 4, and these 60 racks 4 are divided into 6 groups of large tooth segments 5, with each group of large tooth segments 5 having 10 racks 4. In S2.2, in one large tooth segment 5, along a clockwise direction, the multiple racks 4 are divided into four smaller tooth segments 51, with the first small tooth segment 51 containing the first and second racks 4, the second small tooth segment 51 containing the second, third and fourth racks 4, the third small tooth segment 51 containing the fourth, fifth, sixth and seventh racks 4, and the fourth small tooth segment 51 containing the seventh, eighth, ninth and tenth racks 4. In S2.3, in the second group of small tooth segments 51, one helical groove 32 is opened in the bit 1, the depth of which is 0.35 mm, the width of which is greater than that of which is In S2.4, in the third group of small tooth segments 51, one helical groove 33 is opened in the bit 1, the depth of which is 0.45 mm, the width of which is greater than the width of which is In S2.5, in the fourth group of small tooth segments 51, one No. 4 helical groove 34 is opened in the bit 1, the depth of the No. 4 helical groove 34 is 0.5 mm, the width of the No. 4 helical groove 34 is greater than the width of the No. 3 helical groove 33, and the No. 4 helical groove 34 grinds the 8th, 9th and 10th racks 4 in the group of large tooth segments 5, and a support portion 7 is formed on either side of the two side walls of the racks 4 on either side of the No. 4 helical groove 34. In S2.6, steps S2.3 to S2.5 are repeated to machine the large tooth segments 5 of the second to sixth groups.

[0060] In S3, a digitally controlled machine tool is used to open 15 second helical grooves 6 at equal intervals along the circumferential direction of bit 1 on the outer wall of bit 1, and the angle between the second helical grooves 6 and the first helical grooves 3 in the helical direction is 60°.

[0061] This embodiment is a method for processing the polishing head of Embodiment 1, in which, in actual production, the number of racks 4 formed after opening the No. 1 helical groove 31 along the circumferential direction of the bit 1 can be freely changed, the number of large tooth segments 5 divided circumferentially in the bit 1 can be freely changed, the number of small tooth segments 51 within each large tooth segment 5 can be freely changed, the number of racks 4 within each small tooth segment 51 can be freely changed, and the arrangement density of racks 4 within multiple small tooth segments 51 in one large tooth segment 5 may change from sparse to dense, from dense to sparse, or sparse and dense may intersect.

[0062] The principle of implementation of Embodiment 5 of the present invention is as follows. First, a No. 1 helical groove 31 is opened to form 60 racks 4 of the same size. Then, based on the 60 racks 4, a No. 2 helical groove 32, a No. 3 helical groove 33, and a No. 4 helical groove 34 are opened. This makes it easier to process the bit 1 with racks 4 of different arrangement densities and tooth heights more accurately and quickly. In addition, once the No. 2 helical groove 32, the No. 3 helical groove 33, and the No. 4 helical groove 34 are opened, support portions 7 can be formed on the side walls of the blades 41 on both sides of the helical grooves, thereby facilitating the processing of the bit 1.

[0063] The above are all preferred embodiments of the present application and do not limit the scope of protection of the present application. Therefore, equivalent modifications made in accordance with the structure, shape, and principle of the present application should all be included within the scope of protection of the present application.

Claims

1. A multifunctional nail art polishing head comprising a bit (1) and a shank (2), wherein a plurality of first helical grooves (3) are spaced apart on the circumferential side wall of the bit (1), a rack (4) is formed between each adjacent pair of first helical grooves (3) of the bit (1), and in the radial cross section of the bit (1), a plurality of groups of large tooth segments (5) each consisting of a plurality of racks (4) are formed along the circumferential direction of the bit (1), in one group of the large tooth segments (5), the arrangement density of the racks (4) becomes sparse to dense, or dense to sparse, or intersects with sparseness along the circumferential direction of the bit (1), the tooth height of the racks (4) increases with increasing sparseness of the racks (4), and the tooth height of the racks (4) decreases with increasing density of the racks (4). A multi-functional polishing head for nail art, featuring the following characteristics.

2. Multiple second helical grooves (6) are opened at intervals in the circumferential side wall of the bit (1), the helical direction of the second helical grooves (6) is opposite to the helical direction of the first helical groove (3), one rack (4) is divided into multiple blades (41) by multiple second helical grooves (6), and each blade (41) is provided symmetrically along a line connecting its cutting edge to the axis of the bit (1). The multi-functional polishing head for nail art according to claim 1.

3. Each group of the large tooth segments (5) comprises a plurality of groups of small tooth segments (51) arranged sequentially, each of which consists of a number of racks (4), the pitch of two adjacent racks (4) within each group of the small tooth segments (51) is the same, and the arrangement density of racks (4) in different small tooth segments (51) is different. The multi-functional polishing head for nail art according to claim 1.

4. In different large tooth segments (5), the number of racks (4) corresponding to the small tooth segments (51) is the same, and the arrangement rule of the different large tooth segments (5) is the same. The multi-functional polishing head for nail art according to feature 3.

5. A support portion (7) is formed on the side wall of the blade (41) near the first helical groove (3), protruding outward, and the support portion (7) is provided along the helical direction of the first helical groove (3). The multi-functional polishing head for nail art according to feature 2.

6. The cross-section of the first helical groove (3) is in the shape of an inverted step. The multi-functional polishing head for nail art according to claim 1.

7. The pitch between two adjacent racks (4) is proportional to the depth of the first helical groove (3). The multi-functional polishing head for nail art according to claim 1.

8. The angle between the first helical groove (3) and the second helical groove (6) in the helical direction is 30 to 120°. The multi-functional polishing head for nail art according to claim 1.

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