CN111914387B - 3D printing nail model based on parameterized design and construction method thereof - Google Patents

3D printing nail model based on parameterized design and construction method thereof Download PDF

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CN111914387B
CN111914387B CN202010496537.7A CN202010496537A CN111914387B CN 111914387 B CN111914387 B CN 111914387B CN 202010496537 A CN202010496537 A CN 202010496537A CN 111914387 B CN111914387 B CN 111914387B
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base
model
length
nail
platform
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CN111914387A (en
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徐卓飞
刘艳
王嘉豪
丁好迪
张立
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Xian University of Technology
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00Computer-aided design [CAD]
    • G06F30/20Design optimisation, verification or simulation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30Auxiliary operations or equipment
    • B29C64/386Data acquisition or data processing for additive manufacturing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y50/00Data acquisition or data processing for additive manufacturing
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00Computer-aided design [CAD]
    • G06F30/10Geometric CAD
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2111/00Details relating to CAD techniques
    • G06F2111/16Customisation or personalisation
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2113/00Details relating to the application field
    • G06F2113/10Additive manufacturing, e.g. 3D printing

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Abstract

The invention discloses a 3D printing nail model based on parameterized design, which comprises a base, wherein the bottom surface of the base is an inward concave bonding cambered surface which is matched with the shape of a nail cover, the top surface of the base is connected with a platform above the base through a connecting part, and a three-dimensional decoration is fixed above the platform; the invention also discloses a 3D printing nail model based on parameterized design. The 3D printing nail model based on parameterized design can quickly realize personalized 3D printing production of corresponding nails; the construction method of the 3D printing nail-beautifying model based on parameterized design can quickly generate the nail-beautifying models which are applicable to different sizes, different requirements and different specifications, thereby providing a simple, efficient, quick and flexible method for the establishment of the three-dimensional nail-beautifying model.

Description

3D printing nail model based on parameterized design and construction method thereof
Technical Field
The invention belongs to the technical field of 3D printing and nail art, and particularly relates to a 3D printing nail art model based on parameterized design; the invention also relates to a construction method of the 3D printing nail model based on the parameterized design.
Background
The nail art is deeply favored by the vast female consumers, along with the continuous promotion of aesthetic requirements of people, more and more consumers begin to pay attention to and like to love nail art products, various novel nail art is also continuously appeared, and especially in the aspects of personalized customization, three-dimensional effect and the like, the novel nail art has important significance for the development and innovation of the industry.
The 3D printing technology is rapidly developed in recent years, and the 3D printing technology is applied to the nail art, so that the personalized and three-dimensional customizing requirements of vast consumers can be met, and a new revolution is expected to be brought to the nail art. The 3D printing nail art concept is put forward in 2017 by Toshiba, but because equipment is expensive and a nail art modeling method is complex, the technical threshold used in the whole process is too high, so that related products are not widely accepted in the market, and sound trace is quickly sold; at present, 3D nail art special equipment is common in the market, the equipment does not have the modeling capability of a three-dimensional space, and actually, a two-dimensional spray painting function is carried out on nails by utilizing a digital ink jet printing technology, the equipment does not have a three-dimensional function and the pollution of ink is larger; many domestic enterprises also put forward 3D nail art schemes, but none of them is attracting market reflection and attention.
From the above, it can be found that the 3D printing technology has not been widely used in the nail art. In practice, the principle of building the nail-beautifying product by using a 3D printer is not complex, the general three-dimensional nail-beautifying product can be realized on fused deposition equipment with slightly higher precision, and the materials are selected from thermoplastic plastics such as PLA, ABS and the like. Through research, the 3D printing technology is not widely applied to the nail art market, the root of the technology is that the technology threshold in the link of three-dimensional modeling is too high, common nail art staff is difficult to deal with, and the specific technology threshold mainly comprises: firstly, the 3D printing can be performed by a three-dimensional model, the nail art object needs to be attached to the curved surface of the nail of a customer, and ten nail structures of different customers have obvious differences, so that the model cannot be prepared in advance; secondly, complex three-dimensional structures are needed on the nail art to realize the beautifying effect, the structures need Solidwork, pro/E, UG and other professional three-dimensional modeling software, engineering technicians generally master the software, general staff have difficulty in establishing or modifying the three-dimensional nail art model, and the wide application of the 3D printing nail art is not seen until now for the reasons.
The key constraint factor of the application of 3D printing in the nail art is to establish a three-dimensional nail model, so the invention provides a method for constructing a special nail model for 3D printing based on parameterized design aiming at the pain point problem in the art. The invention aims to provide a rapid parameterized design method, which can greatly reduce the design cost of a three-dimensional nail model so as to realize rapid production of 3D printing nail-beautifying products, enable the nail to meet the complex requirements of consumers, and simultaneously reduce the labor intensity and the technical threshold.
Disclosure of Invention
The invention aims to provide a 3D printing nail-beautifying model based on parameterized design, which can rapidly realize personalized 3D printing production of corresponding nails.
The invention further aims to provide the construction method of the 3D printing nail model based on the parameterized design, which can be used for quickly generating nail models applicable to different sizes, different requirements and different specifications, so that a simple, efficient, quick and flexible method is provided for the establishment of the three-dimensional nail model.
The first technical scheme adopted by the invention is as follows: the utility model provides a beautiful first model of 3D printing based on parameterization design, includes the base, and the bottom surface of base is the bonding cambered surface that inwards caves in and suits with the nail lid shape, and the top surface of base is connected with the platform that is located its top through connecting portion, and the top of platform is fixed with three-dimensional decoration.
The first technical solution of the invention is also characterized in that,
The base and the platform are rectangular plates and are opposite up and down, and the corresponding axis of the cambered surface at the bottom of the base is parallel to the length direction of the base.
The base and the platform are the same in length, and one end of the platform along the length direction is provided with an arc-shaped platform bulge which protrudes outwards; the width of the platform is not smaller than the width of the base; the thickness of the platform is 1mm-1.5mm.
The upper surface edge of the platform is provided with an arc chamfer.
The connecting part is cuboid, the upper surface and the lower surface of the connecting part are square, the side length is one third of the chord length of the cambered surface of the base, and the height of the connecting part is 0.5mm-1mm.
The second technical scheme adopted by the invention is as follows: the construction method of the 3D printing nail model based on parameterized design specifically comprises the following steps:
Step 1: measuring three basic parameters of the arc length, the chord length and the length of the user nail cover, and calculating the arc surface chord length and the arc surface radius of the bonding arc surface according to the arc length and the chord length of the user nail cover;
step 2: calculating the thickness of the base according to the chord length of the cambered surface and the radius of the cambered surface, and then calculating the length of the base according to two thirds of the length of the nail; constructing a base model by utilizing the chord length of the cambered surface, the radius of the cambered surface, the thickness of the base and the length of the base, and cutting off the areas 2mm at the two ends of the base in the width direction after finishing;
Step 3: after the base model is completed, a connecting part model is established, the connecting part is cuboid, the upper surface and the lower surface are square, the side length is one third of the chord length of the cambered surface, and the thickness is 0.5mm-1mm;
step 4: calculating the length of the platform according to two thirds of the length of the nail, wherein the width of the platform is not smaller than the width of the base, and establishing a platform model;
Step 5: designing three-dimensional decorations of various styles to form a 3D decoration part model library, selecting the style of a preset decoration part according to the selection of a user, and establishing a three-dimensional decoration model;
step 6: and combining the base model, the connecting part model, the platform model and the three-dimensional decoration model into a complete solid model from bottom to top in sequence to form the 3D printing nail-beautifying model.
The beneficial effects of the invention are as follows:
(1) The novel model design scheme is provided for producing the nail art by using the 3D printer, the 3D equipment and the client requirements are effectively connected, and the wide application of the existing 3D printing technology in the nail art market can be promoted;
(2) The invention simplifies the modeling of the nail three-dimensional design by utilizing the parameterization function, has no technical requirement of solid modeling for staff, and reduces the technical threshold for acquiring the nail model;
(3) The invention has parameterized design characteristics, provides a method for rapidly describing the nail form of the customer, can rapidly design models aiming at the finger shapes of different customers, and has extremely strong individuation characteristics;
(4) The invention has the characteristic of modularized design, provides a novel composition structure of the nail model, greatly improves the model generation efficiency, and provides guarantee for the requirement of rapid forming of 3D printing;
(5) The method provided by the invention has lower mastering difficulty, is favorable for quick learning and mastering by common staff, and the bonding method of the finally obtained 3D printing physical product is the same as that of a common nail-beautifying patch, is easy to accept by the existing market, and has great popularization potential.
Drawings
FIG. 1 is a schematic structural diagram of a parameterized 3D printing nail model;
FIG. 2 is a flow chart of a method for constructing a 3D printing nail model based on parameterized design;
FIG. 3 a) is a schematic diagram of parameter measurement in a 3D printing nail model based on parameterized design;
fig. 3 b) is a schematic diagram of parameter measurement in a 3D printing nail model based on parameterized design according to the present invention.
In the figure, 1, bonding cambered surface, 2, cambered surface chord length, 3, cambered surface radius, 4, base, 5, base thickness, 6, connecting part, 7, platform, 8, three-dimensional decoration, 9, base length, 10, platform length and 11, platform protrusion.
Detailed Description
The invention will be described in detail with reference to the accompanying drawings and detailed description.
The invention provides a 3D printing nail-beautifying model based on parameterized design, which is shown in figure 1 and comprises an adhesive cambered surface 1, a cambered surface chord length 2, a cambered surface radius 3, a base 4, a base thickness 5, a connecting part 6, a platform 7, a stereoscopic decoration 8, a base length 9, a platform length 10 and a platform protrusion 11, wherein a model main body sequentially comprises the base 4, the connecting part 6, the platform 7 and the stereoscopic decoration 8 from bottom to top, the base 4, the connecting part 6, the platform 7 and the stereoscopic decoration 8 are sequentially overlapped with each other to form the whole model, and the bottom surface of the base 4 is the adhesive cambered surface 1; the model includes five main dimensional parameters: the arc chord length 2, the arc radius 3, the base thickness 5, the base length 9 and the platform length 10, and the control of these dimension parameters is the basis of the parameterized design of the model;
The base 4 is mutually adhered with the surface of the nail cover of the user through the self-contained adhesive cambered surface 1, so as to realize the fixing effect, the adhesive used for adhesion has the same process as that of a common nail-beautifying patch, the surface of the adhesive cambered surface 1 is provided with textures, so that the contact area of the adhesive is increased, the textures adopt parallel fine textures, and the depth of the textures is 0.3-0.5 mm; the base 4 also plays a role of supporting the rest, and the base 4 is directly connected with the connecting part 6;
The connecting part 6 is cuboid, the upper surface and the lower surface are square, the side length is one third of the chord length of the cambered surface 2, the height is 0.5mm-1mm, the connecting part 6 has a fine adjustment function besides the function of connecting the base 4 and the platform 7, when the surface of the nail cover of a user grows unevenly or is special, the bonding of the bonding cambered surface 9 and the surface of the nail cover is excessively uneven, and at the moment, the upper surface of the base 4 is not parallel to the surface of the platform by extruding the whole model structure, so that the connecting part 6 is slightly bent, but the platform 7 and the three-dimensional decoration 8 still keep a horizontal state;
The main function of the platform 7 is a three-dimensional decoration 8, and the edge of the upper surface of the platform 7 is provided with an arc chamfer for preventing users from being injured by cuts; when the model is viewed from above, the platform 7 should completely shield the base 4 and the connecting part 6, so as to ensure the overall aesthetic appearance of the model; the front end of the platform 7 is provided with a platform protrusion 11 which is provided with an arc edge similar to a common nail, the arc is mainly used for decoration, the thickness of the platform is a fixed value which is 1mm-1.5mm according to the conventional nail-beautifying patch parameters;
the stereo decoration 8 is a stereo model for decoration, such as flower leaves, stars, animals, patterns, textures, building crews, etc. the bottom of the stereo model is a flat plane, and the invention needs to design a needed scheme of the decoration part in advance to form a model library of the decoration part so as to be convenient for users to select when in use.
The invention relates to a parameterized design-based 3D printing nail model, which is characterized in that when in use: firstly, converting the format of a model into a common 3D printing format such as STL, STP, IGS and the like through various three-dimensional modeling software; furthermore, generating an entity through a 3D printer, and obtaining a nail product corresponding to the model; finally, various adhesives are smeared on the bonding cambered surface, and the bonding cambered surface is bonded with the surface of the nail cover of the user, so that the three-dimensional nail beautifying function is realized.
The process flow of the method for constructing the 3D printing nail model based on parameterized design is shown in figure 2, and the method mainly comprises the following steps:
step one: measuring user nail parameters, namely three basic parameters of arc length, chord length and length of the main nail cover, wherein the parameters can be measured through a common flexible tape, the allowable error is within 1mm, and the parameters of arc surface chord length 2, arc surface radius 3, base thickness 5, base length 9, platform length 10 and the like of the model are converted according to the parameters, so that the sizes of all parts of the model are determined;
Step two: firstly, calculating the thickness 5 of the base according to the cambered surface chord length 2 and the cambered surface radius 3, and then, calculating the length 9 of the base and the length 10 of the platform according to two thirds of the length of the nail; constructing a base model by utilizing the arc chord length 2, the arc radius 3, the base thickness 5 and the base length 9, and cutting off the areas 2mm on both sides of the model after finishing, so that the model is at least 4mm narrower than an actual nail on the plane of the bonding arc surface 1, thereby being beneficial to the adhesion of the model and the nail;
step three: after the base 4 is finished, a connecting part 6 is established, the connecting part 6 is a cuboid, the upper surface and the lower surface are square, the side length is one third of the cambered surface chord length 2, and the thickness is 0.5mm-1mm;
Step four: after the connection part 6 is built, a platform 7 is built, the main parameter of the platform 7 is a platform length 10, the length of the platform is two thirds of the nail length, the length of the platform is the same as that of the base 4, the upper surface of the platform part is used for supporting the decoration part, and the platform part is tightly combined with the supporting part;
Step five: after the platform 7 is built, a three-dimensional decoration 8 is built, a plurality of types of three-dimensional decoration 8 are designed in advance to form a 3D decoration part model library, the types of the preset decoration parts are selected according to the selection of a user, so that personalized design is realized, and the lower surface of the three-dimensional decoration 8 is tightly combined with the upper surface of the platform 7 and is a horizontal plane;
Step six: after the parameterization and personalized design of the base 4, the connecting part 6, the platform 7 and the three-dimensional decoration 8 are completed, the parameterization and personalized design is combined into a complete solid model to form a special nail-beautifying model for 3D printing, which is used for the subsequent works of format conversion, 3D printing and the like, the model can be well matched and adhered with the surface of a nail cover of a user, and the proposed model and the construction method thereof can be realized by applying various three-dimensional solid modeling software without restriction on the selection of software types.
The parameter measurement principle of the 3D printing nail model based on parameterized design is shown in figure 3: the length, arc length and chord length of the nail are input by a user, and converted into an arc surface chord length 2, an arc surface radius 3, a base thickness 5, a base length 9 and a platform length 10 according to the invention, so that the specific size of the model is obtained by means of the five parameters;
referring to fig. 3 a), three parameters of arc length, chord length and length of the nail are obtained from the user, and the values obtained by multiplying the nail length by two thirds are the values of the base length 9 and the platform length 10; the arc length of the fingernail is M, the chord length of the fingernail is 2L, the length of the arc surface chord length 2 is 2L, the arc surface radius 3 can be converted according to the geometric relationship and is recorded as R, the relation formula (1) can be obtained according to the cosine theorem, and the specific value of R can be obtained by solving the numerical value through a computer:
2R2(1-cosM/R)=4L2 (1)
the calculation of H in the figure is formula (2):
The base thickness 5 is H+0.5mm, so far the 5 parameters of the invention are all solved.
Referring to fig. 3 b), after the base portion is established, a part of the base portion needs to be cut from the left and right sides, the cutting length is a, the base portion 4 in the range of the two sides a is completely cut, and the construction work of the connecting portion 6, the platform 7 and the stereoscopic decoration 8 is performed after the cutting.
By the mode, a new model design scheme is provided for producing the nail by using the 3D printer, 3D equipment and customer requirements are effectively connected, and the wide application of the existing 3D printing technology in the nail market can be promoted; the invention simplifies the modeling of the nail three-dimensional design by utilizing the parameterization function, has no technical requirement of solid modeling for staff, and reduces the technical threshold for acquiring the nail model; the invention has parameterized design characteristics, provides a method for rapidly describing the nail form of the customer, can rapidly design models aiming at the finger shapes of different customers, and has extremely strong individuation characteristics; the invention has the characteristic of modularized design, provides a novel composition structure of the nail model, greatly improves the model generation efficiency, and provides guarantee for the requirement of rapid forming of 3D printing; the method provided by the invention has lower mastering difficulty, is favorable for quick learning and mastering by common staff, and the bonding method of the finally obtained 3D printing physical product is the same as that of a common nail-beautifying patch, is easy to accept by the existing market, and has great popularization potential.

Claims (2)

1. The 3D printing nail-beautifying model based on parameterized design is characterized by comprising a base (4), wherein the bottom surface of the base (4) is an inward concave bonding cambered surface (1) which is matched with the shape of a nail cover, the top surface of the base (4) is connected with a platform (7) positioned above the base through a connecting part (6), and a three-dimensional decoration (8) is fixed above the platform (7);
The base (4) and the platform (7) are rectangular plates and are opposite to each other vertically, and the axis corresponding to the cambered surface at the bottom of the base (4) is parallel to the length direction of the base; the base (4) and the platform (7) have the same length, and one end of the platform (7) along the length direction is provided with an arc-shaped platform bulge (11) which bulges outwards; the width of the platform (7) is not smaller than the width of the base (4); the thickness of the platform (7) is 1mm-1.5mm; the connecting part (6) is cuboid, the upper surface and the lower surface of the connecting part (6) are square, the side length is one third of the cambered surface chord length (2) of the base, and the height of the connecting part (6) is 0.5mm-1mm;
the construction method of the 3D printing nail model specifically comprises the following steps:
Step 1: measuring three basic parameters of the arc length, the chord length and the length of the user nail cover, and calculating the arc surface chord length (2) and the arc surface radius (3) of the bonding arc surface (1) according to the arc length and the chord length of the user nail cover;
Step 2: calculating the thickness (5) of the base according to the cambered surface chord length (2) and the cambered surface radius (3), and then calculating the length (9) of the base according to two thirds of the length of the nail; constructing a base (4) model by utilizing the cambered chord length (2), the cambered radius (3), the base thickness (5) and the base length (9), and cutting off the areas 2mm at the two ends of the base (4) in the width direction after finishing;
Step 3: after the base (4) model is completed, a connecting part (6) model is built, the connecting part (6) is cuboid, the upper surface and the lower surface are square, the side length is one third of the cambered surface chord length (2), and the thickness is 0.5mm-1mm;
Step 4: calculating the length (10) of the platform according to two thirds of the length of the nail, wherein the width of the platform (7) is not smaller than the width of the base (4), and establishing a model of the platform (7);
Step 5: designing three-dimensional decorations (8) with various styles, forming a 3D decoration part model library, selecting the style of a preset decoration part according to the selection of a user, and establishing a three-dimensional decoration (8) model;
Step 6: and combining the base (4) model, the connecting part (6) model, the platform (7) model and the three-dimensional decoration (8) model into a complete solid model from bottom to top in sequence to form the 3D printing nail-beautifying model.
2. A 3D printing nail model based on parameterized design according to claim 1, characterized in that the upper surface edge of the platform (7) has a circular arc chamfer.
CN202010496537.7A 2020-06-03 2020-06-03 3D printing nail model based on parameterized design and construction method thereof Active CN111914387B (en)

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