CN108629071B

CN108629071B - Conversion method for converting cut and spread paper pattern into product web required in next process software and sweater knitting equipment

Info

Publication number: CN108629071B
Application number: CN201810190195.9A
Authority: CN
Inventors: 姚晓林; 罗琴; 刘小红
Original assignee: Huizhou University
Current assignee: Huizhou University
Priority date: 2018-03-08
Filing date: 2018-03-08
Publication date: 2022-03-08
Anticipated expiration: 2038-03-08
Also published as: CN108629071A

Abstract

The utility model discloses a conversion method for converting a cut and spread paper pattern into a product web required in next process software, which is characterized by comprising the following conversion steps: marking a cutting and spreading position in a paper pattern to be cut and spread to form a paper pattern before cutting and spreading; the paper pattern before cutting and spreading is converted into a paper pattern after cutting and spreading; the cut and spread paper pattern is converted into a cut and spread amount embedded paper pattern; the cutting and spreading amount embedded paper pattern is converted into a cutting and spreading amount fused paper pattern; through the conversion step, the inner line shape of the cut and spread paper pattern is still unchanged before and after cutting and spreading. Also discloses a next process weaving method based on the clothing pattern, a sweater process scheme and sweater knitting equipment. The utility model achieves the technical effects of reducing the error rate of the format, reducing the communication difficulty between a pattern engineer and a process engineer and reducing the production cost, and improves the design speed and the production efficiency of the clothing product.

Description

Conversion method for converting cut and spread paper pattern into product web required in next process software and sweater knitting equipment

Technical Field

The utility model relates to the technical field of knitting processes of a computerized flat knitting machine for producing woolen clothes, in particular to a method for converting cut and spread paper patterns into product webs required in next process software, and further relates to a next process knitting method based on the clothing paper patterns, a sweater knitting method and sweater knitting equipment.

Background

The intelligent CAD software is a software system which is widely applied to the computer aided design and processing of sweater production, and can obtain the knitting process of the formed sweater and generate a motor file for controlling the knitting operation of a computerized flat knitting machine; can be directly used for production on the loom, and is beneficial to improving the production efficiency and the intelligent level of the formed and woven sweater.

Patent document CN105852295A discloses a plate making method of a ring wave fashion collar structure, which comprises the steps of (a), designing the specification of the ring wave fashion collar; the length of clothes is 38 cm, the chest circumference is 84 cm, the relaxation amount of 2cm is 86 cm; step two, basic plate making of the front garment body; and (III) making a plate by using the ring wave collar structure. The plate making method is visual and convenient to operate, and the manufactured ring wave fashion collar is fashionable in modeling, strong in operability and practical.

Patent document CN107467762A discloses a method for transferring the province of the chest and a template made by the method, which is specially directed at the most complicated difficulty in the process of beating the chest of women's dress, namely, transferring the province of the chest, and the method comprises the following steps: the left part of the front piece of the female garment is divided into three parts: the chest sample plate comprises a shoulder front part, a chest upper part and a chest lower part, wherein a triangular chest dart is cut at the left side of the chest front part, the chest upper part and the chest lower part by taking a BP point as a vertex and is positioned at the bottom end of a loop clamping line, conversion points are respectively selected on the loop clamping line, a shoulder seam and a neck pit line, the conversion points and the BP point are connected to form three dart paths, the three dart paths are cut, the part on the right side of each dart path is rotated to the left for a certain displacement, and then an included angle formed by cutting off the chest dart and the three dart paths are closed to form a three-dimensional female clothes front chest sample plate. The method simplifies the process of changing the chest of the woman dress to province, enables inexperienced workers to quickly master the work, does not depend on the work experience of a boxer, and improves the work and production efficiency.

Patent document CN202396523U discloses a high elastic knitted tight prototype paper pattern template for women's clothing, which comprises a back piece and a front piece, wherein the periphery of the back piece comprises a back neckline curve, a back shoulder line, a back armhole curve, a back side seam line, a back waist line and a back center line which are connected together in a clockwise direction; the periphery of the front piece comprises a front neckline curve, a front middle line, a front waist line, a front side seam line, a front sleeve hole curve and a front shoulder line which are connected together in a clockwise direction. The high-elasticity knitted female close-fitting prototype paper pattern template provided by the utility model can be used for saving the trouble of carrying out formula calculation every time of paper pattern making, is convenient and quick, can solve the errors and losses caused by the fact that different elastic fabrics are operated only by the subjective experience of a tailor, has scientificity, practicability, convenience and high accuracy, can improve the work efficiency to a great extent, and has strong adaptability.

Patent document CN106723567A discloses a visual graphical frightening process establishment method based on clothing CAD pattern technology, which includes the following steps: drawing a CAD structural paper pattern of the garment according to the style requirement and the specification and the size by a prototype method; guiding the drawn clothing CAD structural paper sample drawing into an operation interface of the scaring process software by adopting Easycraft scaring process design software; setting a visual graphic process prototype based on the CAD structural paper pattern lead-in drawing of the garment; setting key point visual coordinate and parameter formula association based on the clothing CAD structure pattern; and adjusting a visual graphical scaring process based on the CAD structural paper pattern of the garment. The utility model can improve the scientific reasonability and the production efficiency of the frightening process design of the flat knitting knitted clothes.

Patent document CN105982381A discloses a clothing template manufacturing system, and its technical scheme main points are, including dress designing software, put a yard board, shearing tool, manufacturing tool, dress designing software with put a yard board and connect, put a yard board with shearing tool connects, shearing tool with manufacturing tool connects, dress designing software puts a yard CAD software for dress designing. Therefore, the template can be manufactured more quickly, and the manufactured template is more accurate.

Patent document CN105455277A discloses a VU primitive number design tailoring method for lapel collar of clothing, which determines the primitive number of relevant specifications such as collar middle width according to the style of clothing, and determines lapel lines and basic inclination of lapel lines by controlling the lapel lines VU, so as to obtain lapel collar loosening amount. Solves the problems that the prior art designs the part, takes longer time, can not meet the requirements of the clothing market on the precision and the speed of the style change of the clothing and has poor comfort of the clothing. The original number design effect of accuracy, simplicity, quickness and good clothing comfort is realized.

Patent document CN205125189U discloses a lane-saving transfer mold for adult female garment prototype, which belongs to a teaching tool for garment major, and is to set an expected lane-saving on a cultural adult female garment prototype, and to "triune" the lane-saving transfer method (measurement method, rotation method, and cutting method), and to rotate and open the expectation by combining basic lanes and using the chest height point b.p as the center of the lane-saving rotation circle, so as to complete the lane-saving transfer process. The mould is suitable for professional learning of clothes, easily breaks through difficult points, easily completes the operation process, is made of plastic, is durable, is a necessary helper for people to learn clothes, and has high market popularization value.

How to utilize novel functions in the clothing intelligent CAD software system to improve the design speed and the production efficiency of clothing products and reduce the error rate of the format is still the direction of technical schemes for designing and improving the knitting process of the computerized flat knitting machine by technicians in the field.

The method for applying the paper pattern to the knitted sweater CAD model book in the scientific and technological document (woolen technology, 2016, 11 th month,

volume

44, 11 th date) published by the inventor of the present patent application describes a method for applying the paper pattern to the knitted sweater CAD model book, which indicates that a common style can directly apply the paper pattern shape to the manufacture of the sweater model book, and an application method and a process thereof, and indicates that the special style web shape is greatly different from the cut paper pattern, the paper pattern manufacturing process and the key size measurement and record of a finished product are required, the model web shape is re-established according to a forming weaving method, the model web shape establishes the required size, and besides the paper pattern manufacturing process and the result are obtained, an equation is also required to be established according to the paper pattern change geometric principle and related data to perform calculation, and 2 application methods are described by the common sleeve filling style and the cutting style.

The model of the knitting CAD is a technical sheet made for a certain type of specific style sweater in the knitting CAD, the technical sheet is also called as a lower number, the number of needle revolutions of each part is calculated according to the basic shape of the sweater piece and the transverse and straight dimensions of each part by combining the transverse and straight finished product density, and the established processing method of the sweater piece is established. Along with the popularization and application of a computerized flat knitting machine, the knitting realizability of the shapes of the garment pieces of the sweater is greatly improved, various complex shapes can be knitted, and the traditional process calculation method cannot meet the production requirements of fashionable sweaters, so that the application of a paper pattern theory to the sweater process calculation is beneficial to enriching the sweater styles and improving the control method of the sweater shapes. The method comprises the following steps of analyzing a principle and influencing factors of a paper pattern applied to a process sheet (1), obtaining the sizes of key parts of certain sweater styles from the design angle of the paper pattern, analyzing the relation among the sizes, establishing a mathematical model (2-7), researching a forming and weaving implementation method (8) of the specific form of the paper pattern and a size setting method (9-11) of a knitting CAD model, and analyzing the paper pattern for one aspect of the sweater process. With the improvement of the intelligent degree of the sweater production, various professional sweater CAD software is widely applied to production, and paper patterns, process sheet formulation and software template production are combined together, so that the method for combining the paper patterns with the sweater CAD software and analyzing the application of the paper patterns to the sweater CAD template is researched.

1 direct application

Firstly, various paper pattern making methods are utilized, such as plane cutting or three-dimensional cutting, so that paper patterns are obtained, breast folds, waist folds and the like in the paper patterns can be moved to side seams by adopting a fold moving method, enough seam loss is reserved for a seam disk in the paper pattern making, and only half of the paper patterns are made if the front and the back are symmetrical. The application steps are as follows:

firstly, a paper pattern is photographed by a camera, is input into a computer, then enters a knitting process CAD software, adopts an original model in the software (the model is only a simple square, and needs to increase intersection points and set size according to the style and change the intersection points into a required model form)

Collecting the previously shot paper pattern image, selecting a 'measurement size' at a corresponding measurement part in the paper pattern image, inputting the actual paper pattern size of the part, and enabling the paper pattern image to be consistent with the actual paper pattern size by utilizing the size.

The process of making the previous template is shown in figure 1. And (3) placing the paper pattern image at the lowest layer so that the cut pieces in the model can be arranged above the paper pattern image, aligning the center point of the bottom edge of the cut piece with the center point of the paper pattern, aligning the top line segment of the cut piece with the horizontal position of the collar bottom of the paper pattern, setting the intersection point as shown in a figure 1(a), and dragging the intersection point to enable the shape of the cut piece to be consistent with the shape of the paper pattern.

(iv) "adding a lateral dimension" and "adding a straight dimension" between the corresponding intersections, as explained in the previous paragraph by way of example, and the dimensions are set as shown in fig. 1 (c). Adding new horizontal dimensions (cm) of a lower foot wide 48, a chest wide 47, a waist wide 44, a shoulder wide 38, a collar wide 24, a front collar bottom flat position 6 and an upper chest wide 30, wherein the new vertical dimensions of the shirt foot height 5, the waist straight position 5, the waist distance 38, the actual width and straightness 16.4, the flower clamping height 6.3, the straight position 4, the arm inclination 3, the front collar depth 9 and the body length 53 can automatically give corresponding numerical values according to the length of the part of the paper sample, and the numerical values of the dimensions can be changed to adjust the position of the intersection point so as to be completely overlapped with the paper sample; the partial sizes such as 'flower height included', 'front collar bottom level', etc. are not the sizes given by the customer, but are obtained by calculation from other sizes, and are set in the form of an equation to facilitate the stacking, and if the sizes do not accord with the paper pattern, the formula coefficients are modified to make the shape of the web accord with the paper pattern.

Modifying the lower number, especially the lower number program of the curve part, to make the curve shape consistent with the paper pattern, and completing the manufacture of the former template to obtain the lower number process sheet, which is shown in figure 1 (d).

Sixthly, manufacturing a back template, similar to the manufacturing steps of the front template, wherein the front template and the back template are the same in size, so that the parts with the same size of the front template and the back template are copied, the parts with the same size of the front template and the back template are newly added, the number of the parts is modified, the front side seam and the oblique arm parts are selected to be the same in size, the needle receiving and releasing procedures and modes of the parts such as clamping, collar receiving and needle adding are modified, and the manufacturing of the back template is completed, and the back template is shown in fig. 2.

And seventhly, manufacturing a symmetrical template by using the sleeve width paper patterns, wherein the alignment is similar to the method, as shown in the figure 3(a), aligning the top line segment of the original template, then newly adding intersection points to form the sleeve width shape, newly adding the size and modifying the size to enable the shape of the web to be in accordance with the paper patterns, and then modifying the lower number to finish the sleeve width template. The size can be automatically selected to be arranged in a bilateral symmetry mode, if the sleeve sizes are in bilateral asymmetry, the sleeve pieces are required to be selected to be 'independent left and right lower number', and the size is reset, the size is set as shown in figure 3(b), the left sleeve width is 18cm, the right sleeve width is 20cm, therefore, the left clamp down stitch adding mode and the clamp up stitch reducing mode are different from the right side, and the sleeve size template lower number process is shown in figure 3 (c).

In actual production, because deformation factors such as the collar part is easy to be enlarged transversely, the shirt body is easy to be enlarged transversely and reduced longitudinally, the paper pattern applied to the sweater is an industrial paper pattern which is corrected by the deformation factors and is subjected to sewing and seam loss, and after a template is manufactured and is not an industrial paper pattern, the corresponding size of the template is adjusted according to the deformation part.

2 Indirect application

The sweater clothes forming weaving product has a unique weaving implementation mode, which is different from cutting and sewing clothes, so that the paper pattern application of some woolen patterns is not simple shape replication, but combines the paper pattern with the forming weaving method.

The finished product of the paper pattern styles and the paper patterns of the sleeve-connected shawl and the trousers are shown in figure 4, the sleeves and the trouser legs are manufactured by adopting a cutting and unfolding method, the paper pattern non-forming clothes is characterized in that the sleeve sheet is cut to form a bent shape of the sleeve sheet and needs to be divided into 2 sleeve half sheets, then the 2 sleeve half sheets are respectively sewn into one sleeve, but the forming and weaving is to realize the bent shape of the sleeve sheet by utilizing local weaving without dividing into 2 sleeve half sheets, the whole sleeve sheet can be directly woven, the length of curves at two sides is shorter than the middle part by adopting a local weaving mode of gradually reducing and gradually increasing the number of working needles at two sides of the sleeve sheet, the cutting and unfolding principle is the same as province, therefore, the shape of the template is different from the paper pattern, the paper pattern cannot be directly applied, the key size in the paper pattern manufacturing process needs to be recorded and applied to the sweater template, the key size comprises the unfolding length and the unfolding interval of 12 cutting and unfolding parts, the lengths of the inner and outer arcs after the pattern is manufactured, the lengths of the straight lines of the uncut and unfolded parts, and the sizes of the pattern parts are shown in table 1.

The unfolding length directly influences the bending degree of the curve, the larger the unfolding length is, the more the curve is bent, the numerical value of the curve meets the formula that the unfolding length sigma is equal to the length of an outer arc-the length of an inner arc, and the unfolding length of each unfolding line needs to be determined according to the shape requirement of a paper pattern; the unfolding distance has an important influence on the shape of the paper pattern, the influence of the unfolding distance on the shape is shown in fig. 5, the 3 unfolding lines have different distances, so that the curvatures of inner and outer arc lines are different, when the positions with smaller distances are concentrated, the curvatures of the arc lines are larger, namely the shapes are obviously bent, and therefore the unfolding length of each unfolding line and the unfolding distance of the adjacent unfolding lines in the paper pattern manufacturing process need to be recorded in detail.

For the design of cutting out the pattern of clothes, the final pattern can be obtained, the intermediate data is not required to be recorded, but if the method is used for forming clothes, the key data in the pattern making process is required to be recorded so as to be used for making a forming weaving pattern in knitting software and obtaining a weaving process sheet. Fig. 6 shows a model process list and a partial size label, and it can be seen from fig. 6(b) that the shape of the model web is different from the shape of the cut paper pattern, the cutting and the extension are replaced by provinces, the same result as the shape of the cut paper pattern is achieved after province and combination, province and combination are achieved at the same time when the forming and weaving are completed, according to the manufacturing requirement of the model, the transverse and straight size of each intersection point needs to be defined, the straight size of the sample can be set according to the size values of the extension length, the interval and the like, such as the extension interval of 4.4cm, the extension length of 5/4/6/5/4/3/2cm, the outer arc length of 106.5cm and the like, and the size of the transverse size of 16.8cm and the like, and an equation needs to be established for size calculation.

As the expansion points are all points on the oblique line before cutting and expanding, the transverse size of each point can be calculated according to the oblique line slope before cutting and expanding:

K＝(XH－XL)/(W－N) (1)

in the formula, K is the slope of a slope line; w is the outer arc length; n is the length of an inner arc;

XH is broad sleeve; XL is cuff wide.

X＝28－D×n×K (2)

In the formula, X is the transverse size of an expansion point; d is the unfolding interval; n is 0, 1, … 11.

The K obtained from equation (1) is (28-15.6)/(106.5-53) is 0.23178, the spread pitch obtained from the pattern measurement is 4.4cm, the X obtained from equation (2) is 28-4.4 × n × 0.23178, and the number of transverse dimensions of the spread point is 12 with 1 decimal left, and the transverse dimensions of the spread point are shown in table 2.

According to the size of the model and the density of the finished product, the density of the finished product is 6.15 wales/cm multiplied by 4.12 revolutions/cm, software can automatically calculate to obtain a process sheet, partial knitting needle stopping and needle releasing programs of the process sheet are manually modified to obtain the model process sheet, the model process sheet is shown in figure 6(a), the model document is collected to a computerized flat knitting machine, the finished product is obtained after knitting, and the plan view of the finished product is shown in figure 7.

3 conclusion

The common style can directly use the paper pattern for making the sweater model, the paper pattern picture is imported into the knitting CAD software, the size of the paper pattern image is consistent with that of the paper pattern according to the measurement size, then the model is established by adding the intersection points and setting the transverse and straight sizes between the intersection points, the shape of the model sheet is the same as that of the paper pattern, and the forming and weaving process sheet of the model shape is obtained.

Secondly, the model paper sheet of some paper patterns manufactured by special processing modes such as cutting and unfolding is different from the paper pattern, and the model paper sheet shape needs to be reestablished according to a forming weaving method by measuring and recording the paper pattern manufacturing process and the key dimension of a finished product.

And thirdly, establishing a size numerical value required by the special style model pattern, measuring according to the pattern making process and the result, and establishing an equation by using related data according to the pattern expansion principle to calculate.

The diagrams shown in the above-mentioned scientific and technical literature of the inventor of the present patent application are referred to in the description fig. 1 to 9.

Based on the disclosure, the inventor of the present application further proposes a technical improvement solution to solve the technical problem that: a universally applicable conversion method for converting cut and spread paper patterns into webs in intelligent knitting CAD is provided, and the size of the web intersection point is determined according to the coordinate values of the cut and spread paper patterns and a fitting function.

Disclosure of Invention

The utility model aims to improve a knitting process method of a computerized flat knitting machine, which can reduce the error rate of a format, reduce the communication difficulty between a paper pattern engineer and a process engineer and reduce the production cost.

The utility model also aims to apply the cutting and spreading pattern in the intelligent knitting CAD and improve the method for establishing the knitting process of the computerized flat knitting machine, which can improve the design speed of clothing products and the production efficiency.

To this end, the utility model proposes a conversion method of a cut and spread paper pattern into a product web required in the following process software, comprising the following conversion steps:

marking a cutting and spreading position in a paper pattern to be cut and spread to form a paper pattern before cutting and spreading;

cutting and unfolding the cut and unfolded positions of the paper pattern before cutting and unfolding, and respectively forming triangular notches, wherein the bottom edges of the triangular notches are positioned on the outer lines of the paper pattern before cutting and unfolding, and the vertex angles of the triangular notches are positioned on the inner lines of the paper pattern before cutting and unfolding, the length of the bottom edges of the triangular notches corresponds to the cutting and unfolding amount of each cut and unfolded position, and the paper pattern before cutting and unfolding is converted into the paper pattern after cutting and unfolding;

in the post-cutting and unfolding paper sample, translating each cutting and unfolding block by corresponding cutting and unfolding amount along the inner line of the pre-cutting and unfolding paper sample to form a rectangular cutting and unfolding area, wherein the lengths of a first side line and a second side line of the rectangular cutting and unfolding area along the inner line direction of the pre-cutting and unfolding paper sample are equal to the corresponding cutting and unfolding amount, and drawing a first straight line segment, a second straight line segment and a third straight line segment, wherein the first end point of the first straight line segment is located at the first corner of the rectangular cutting and unfolding area, the first end point of the second straight line segment is located at the second corner of the rectangular cutting and unfolding area, the second end point of the first straight line segment and the second end point of the second straight line segment are intersected at the middle point of the third straight line segment, and the post-cutting and unfolding paper sample is converted into cutting and unfolding amount to be embedded into the paper sample;

in the cutting and spreading amount embedded paper pattern, erasing a third side line and a fourth side line of each rectangular cutting and spreading area, and converting the cutting and spreading amount embedded paper pattern into a cutting and spreading amount fused paper pattern; through the conversion step, the inner line shape of the cut and spread paper pattern is still unchanged before and after cutting and spreading;

inputting the graph of the cut and spread amount fused paper pattern into next process software, and converting the cut and spread amount fused paper pattern into a product web in the next process software;

according to the cutting and spreading paper pattern principle and the next process software intersection point size setting method, the forming and weaving product web intersection point size setting is completed through measurement or numerical calculation, wherein the size numerical value of the product web intersection point can utilize the horizontal and vertical coordinate values of the corresponding intersection point of the paper pattern before cutting and spreading, the cutting and spreading position (L1, L2, … … Ln) coordinate values, the cutting and spreading distance and the cutting and spreading amount (delta L)₁，ΔL₂，……ΔL_n) A functional relationship of values is obtained, thereby converting the patterned production web into a digitized production web.

The utility model also provides a next process weaving method based on the clothing pattern, which comprises the following steps:

drawing a CAD structural paper pattern of the garment according to the style requirement and the specification and the size of the garment by a prototype method;

converting the clothing paper sample drawing into a web drawing required in next process software according to the conversion method for converting the cut and spread paper sample into the web drawing required in next process software;

importing the face sheet into a counting process software and generating a corresponding counting file;

modifying related data in a download setting interface of the download process software based on the download file;

the next process sheet to generate the web map.

The utility model also provides a sweater process scheme, which comprises the following steps:

generating a counting process list of the sweater according to the counting process compiling method;

manufacturing a knitting image file of the sweater in knitting CAD software based on the next technical list of the sweater;

manufacturing a motor gear of the sweater in knitting CAD software based on the knitting image file of the sweater;

manufacturing a computerized flat knitting machine control file of the corresponding brand and machine model of the sweater in knitting CAD software based on the motor gear of the sweater;

and knitting the sweater finished product in a computerized flat knitting machine based on the computerized flat knitting machine control file of the sweater.

The utility model also proposes a sweater knitting apparatus comprising:

a counting process list generating device which can generate the counting process list of the sweater according to the counting process compiling method;

a knitted image file generating device capable of creating a knitted image file of the sweater in knitting CAD software based on the next process list of the sweater;

a motor gear generation device which can make a motor gear of the sweater in knitting CAD software based on the knitting image file of the sweater;

the computerized flat knitting machine control file generation device can make computerized flat knitting machine control files of corresponding brands and machine models of the sweaters in knitting CAD software based on the motor gear of the sweaters;

and the computerized flat knitting machine can automatically knit the sweater finished product based on the computerized flat knitting machine control file of the sweater.

According to other aspects of the utility model, it may also comprise one or more of the features of the detailed description section herein. As long as such a combination of features is practicable, new solutions are hereby incorporated as part of the present patent.

The utility model achieves the technical effects of reducing the error rate of the format, reducing the communication difficulty between a paper pattern engineer and a process engineer and reducing the production cost, and improves the design speed and the production efficiency of clothing products.

Drawings

The features, advantages and characteristics of the present invention are better understood by the following description of the detailed description with reference to the accompanying drawings, in which:

FIG. 1: fig. 1 in the scientific literature, "application of paper pattern in knitted sweater CAD template";

FIG. 2: FIG. 2 in the scientific and technical literature "application of paper pattern in knitted sweater CAD template";

FIG. 3: fig. 3 in the scientific and technical literature "application of paper pattern in knitted sweater CAD template";

FIG. 4: fig. 4 in the scientific and technical literature "application of paper pattern in knitted sweater CAD template";

FIG. 5: fig. 5 in the scientific and technical literature "application of paper pattern in knitted sweater CAD template";

FIG. 6: FIG. 6 in the scientific and technical literature "application of paper pattern in knitted sweater CAD template";

FIG. 7: fig. 7 in the scientific and technical literature "application of paper pattern in knitted sweater CAD template";

FIG. 8: table 1 in the scientific literature "application of paper pattern in knitted sweater CAD template";

FIG. 9: table 2 in the scientific literature "application of paper pattern in knitted sweater CAD template";

FIG. 10: a schematic view of a cut-and-spread portion of a pre-cut and spread pattern according to a first embodiment of the present invention;

FIG. 11: FIG. 10 is a schematic view of a cut and spread pattern of the first embodiment;

FIG. 12: FIG. 10 is a schematic view showing a cut and spread amount embedded pattern of the first embodiment;

FIG. 13: FIG. 12 is a schematic view of a cut and spread amount blending pattern of the first embodiment;

FIG. 14: FIG. 10 is a schematic diagram of the initial lateral and vertical sizing of a pre-cut and spread pattern of the first embodiment;

FIG. 15: FIG. 10 is a schematic view showing the cut and spread straight dimension determination of the cut and spread pattern according to the first embodiment;

FIG. 16: fig. 10 is a schematic view illustrating the setting of the inner lines of the cut and spread pattern according to the first embodiment;

FIG. 17: FIG. 10 is a schematic view showing the setting of the outer lines of the cut and spread pattern in the first embodiment;

FIG. 18: a schematic view of a pre-cut and pre-spread pattern of a second embodiment of the utility model;

FIG. 19: FIG. 18 is a schematic view of a cut and spread pattern of the second embodiment;

FIG. 20: FIG. 18 is a schematic view of the cut and spread amount embedded pattern of the second embodiment;

FIG. 21: FIG. 18 is a schematic view of a second embodiment of a cut and spread amount blending pattern;

FIG. 22: a schematic view of a pre-cut and pre-spread pattern of a third embodiment of the utility model;

FIG. 23: FIG. 22 is a schematic view of a cut and spread pattern of the third embodiment;

FIG. 24: FIG. 22 is a schematic view showing a cut and spread amount embedded pattern of the third embodiment;

FIG. 25: FIG. 22 is a schematic view showing a combined cut and spread pattern of the third embodiment;

FIG. 26: FIG. 18 is a schematic diagram of the initial lateral and vertical sizing of a pre-cut and spread pattern of the second embodiment;

FIG. 27 is a schematic view showing: FIG. 22 is a schematic diagram of the initial lateral and vertical sizing of a pre-cut and spread pattern of the third embodiment;

FIG. 28: FIG. 18 is a schematic view of the cut and spread straight dimension of the cut and spread pattern of the second embodiment;

FIG. 29: FIG. 22 is a schematic view of the cut and spread straight dimension of the cut and spread pattern of the third embodiment;

FIG. 30: a schematic view of a pre-cut and pre-spread pattern according to a fourth embodiment of the present invention;

FIG. 31: FIG. 30 is a schematic view of a cut and spread pattern of the fourth embodiment;

FIG. 32: fig. 30 is a schematic view of shape tracing of the fourth embodiment;

FIG. 33: FIG. 30 shows a schematic view of a web of a fourth embodiment;

FIG. 34: FIG. 30 is a schematic view of a fourth embodiment of a weaving sheet;

FIG. 35: FIG. 30 is a schematic view of a knitted image of the fourth embodiment;

FIG. 36: fig. 30 is a schematic view of a shape trace created by a cut-and-spread pattern conversion method according to the fourth embodiment;

FIG. 37: FIG. 30 is a schematic illustration of a fourth embodiment of a web created by a cut and spread pattern conversion process;

FIG. 38: fig. 30 is a schematic view of a weaving sheet constructed by a cut and spread pattern conversion method according to the fourth embodiment;

FIG. 39: FIG. 30 is a schematic view of a knitted image created by a cut and spread pattern conversion method according to a fourth embodiment;

FIG. 40: FIG. 30 is a schematic view showing the dimension establishment of the pre-cut and spread pattern 104 according to the fourth embodiment;

FIG. 41: fig. 30 is a schematic diagram of a curve Y ═ f (x) fitting formula of the pre-cut and spread pattern 104 of the fourth embodiment;

FIG. 42: FIG. 30 is a schematic view showing a knitting result of the fourth embodiment;

FIG. 43: FIG. 30 is another illustration of the knitting results of the fourth embodiment;

FIG. 44: FIG. 30 is yet another schematic illustration of the knitting result of the fourth embodiment;

FIG. 45: a schematic view of a pre-cut and spread pattern of a fifth embodiment of the present invention;

FIG. 46: FIG. 45 is a schematic view of a cut and spread pattern of the fifth embodiment;

FIG. 47: FIG. 45 is a schematic diagram illustrating coordinate settings of 3 key points of a pattern before cutting and spreading according to a fifth embodiment;

FIG. 48: fig. 45 is a diagram of a straight line Y ═ KX fitting equation of the fifth embodiment;

FIG. 49: FIG. 45 is a schematic view of a fifth embodiment in web form;

FIG. 50: FIG. 45 is a schematic illustration of the transverse dimension of a web of a fifth embodiment;

FIG. 51: FIG. 45 is a schematic illustration of the straight dimension of the web of the fifth embodiment;

FIG. 52: FIG. 45 is a schematic view of a knitting process corresponding to the web of the fifth embodiment;

FIG. 53: FIG. 45 is a schematic representation of a knitted image corresponding to a web of the fifth embodiment;

FIG. 54: showing a next process sheet screenshot generated in the intelligent knitting CAD software;

FIG. 55: showing a lower number setting interface screenshot of the lower number process software, wherein the screenshot is used for modifying the needle opening mode;

FIG. 56: and showing a screen shot of a download setting interface of the download process software, wherein the screen shot is used for setting the size.

Fig. 57 shows a knitted image file screenshot output in the smart knitted CAD software.

Fig. 58 shows a motor profile screenshot output in the smart knitting CAD software.

In the drawings, identical or similar elements are provided with the same reference numerals, and different elements are provided with different reference numerals, wherein:

101 cutting and spreading pattern

101 cutting and spreading front pattern

101a cut and spread paper pattern

101b cut and spread amount embedded pattern

101c cut-spread amount fused paper pattern

102 cut and spread the front pattern

102a cut and spread paper pattern

102b cut and spread amount embedded paper pattern

102c cut and spread amount fused paper pattern

103 cutting and spreading front pattern

103a cut and spread paper pattern

103b cut and spread amount embedded pattern

103c cut and spread amount fused paper pattern

104 cutting and spreading front pattern

104a cut and spread paper pattern

104c cut and spread amount fused paper pattern

104d intelligent knitting CAD software web

105 cut and spread the front pattern

105a cut and spread paper pattern

105d intelligent knitting CAD software web

11 front-middle position

21 outer line

22 internal line

Detailed Description

Based on the published scientific and technical literature 'application of paper patterns in the CAD template of the sweater knitting', the inventor further applies the cutting and spreading paper pattern principle to the industrial production of the sweater, provides a universally applicable conversion method for converting the cutting and spreading paper patterns into a web in the intelligent knitting CAD, and determines the size of the intersection point of the web according to the coordinate values of the cutting and spreading paper patterns and a fitting function. The technical problem is solved by the web shape conversion method of the cut and spread paper pattern in the intelligent knitting CAD software, which is described below: cut and spread the styloid principle and lead to the stylolite position of sweater irregular after using, the knitting shaping weaving in-process just needs to be realized through adding the needle operation, and then leads to this position to warp easily, and the volume of loosing grow and then influence outward appearance molding effect.

A) Referring to fig. 10-14, the method of converting cut and spread patterns to web shapes in smart-knitting CAD software is understood according to a first embodiment of the utility model:

the first step is as follows: obtaining the cutting and spreading amount delta L of the key size of the cutting and spreading pattern_n”。

As shown in FIG. 10, the uncut and spread pattern, also called as the pre-cut and spread pattern 101, is a long rectangle, cut and spread at two cut and spread portions, and is in a spread form as shown in FIG. 11, called as the post-cut and spread pattern 101a, wherein the amount of cut and spread Δ L is₁And the amount of cutting and spreading DeltaL₂Can be determined by making measurements in the actual cutting and spreading of the pattern. It is understood that the incisional sites may be multiple, such as 3, 4, 5, … … N, where N is a natural number greater than zero, as desired.

The second step is that: establishing intelligent knitted CAD web shapes

The shape of the cut and spread paper pattern 101a is converted into a corresponding web shape in the intelligent knitting CAD software according to a knitting forming and weaving implementation method, and the conversion method is as follows:

as shown in FIG. 12, the incisional and extended amounts at the incisional and extended parts are expressed by Δ L₁、ΔL₂…ΔL_nThe cutting and spreading pattern 101b is embedded in a unit form, namely the cutting and spreading amount embedded pattern 101b, and the cutting and spreading pattern 101c after the embedding, the cutting and spreading amount is completed is shown as a graph 13 and is called the cutting and spreading amount fused pattern 101c。

In FIG. 12, each amount of stretch, for example, the amount of stretch Δ L₁Three dashed lines are marked, wherein the dashed line AC intersects the dashed line BC at point C, and point C is at the midpoint of the dashed line DE.

In fig. 13, the amount of stretch and cut in the stretch and cut blending pattern 101C is shown by a notch formed by the intersection of the solid lines AC and BC in fig. 13 and the broken lines AC and BC in which the stretch and cut is embedded in the pattern 101b in fig. 12, respectively, are in one-to-one correspondence, and therefore, in fig. 13, the vertical projection of the point C on the line AB is located at the midpoint position.

B) According to the cutting and spreading paper pattern principle and the intersection point size setting method of system software, the intersection point size setting of the formed woven product is completed

In the intelligent knitting CAD software, in order to determine the size of the face sheet, the transverse size and the straight size must be determined for each point to fix the relative position of each point, and since the shape of the face sheet of the cut and spread paper pattern in the intelligent knitting CAD is converted according to the method of the patent, the X, Y coordinate value of the intersection point of the face sheet in the intelligent knitting CAD has a correspondence with the cut and spread paper pattern, that is, for the size of each point A, B, C, F, G, H in the cut and spread amount fused paper pattern 101c shown in fig. 13, the cut and spread amount embedded paper pattern 101b in the cut and spread conversion process shown in fig. 10 and 12 can be referred to.

The transverse dimension of each initial point of the pre-cutting and spreading paper pattern 101 is the X coordinate of the graph 14, the X coordinate is not changed after cutting and spreading, therefore, the initial X coordinate of the pre-cutting and spreading paper pattern 101 can be used as the transverse dimension value of the point, the straight dimension of each initial point of the pre-cutting and spreading paper pattern 101 is the Y coordinate of the graph 14, the Y coordinate is changed after cutting and spreading, and the straight dimension of each point needs to be increased by corresponding delta L on the basis of the Y coordinate of each point of the graph 14 after cutting and spreading₁、ΔL₂…ΔL_nEqual amount of stretch, as shown in fig. 15.

As shown in fig. 16 and 17, the incised and expanded lines are set as outer lines, and the corresponding unexpanded lines are set as inner lines. When the outer line of the pattern before cutting and spreading is not a vertical straight line, but is a sloping line Y ═ KX where K is a constant, or the outer line of the pattern is an arbitrary function curve Y ═ f (x), the smart knitted CAD web conversion example one corresponds to the second embodiment and example two corresponds to the third embodiment shown in fig. 18 to 25.

The original horizontal dimension of each point of the pre-cutting and spreading

paper patterns

102 and 103 is the X coordinate of the figures 26 and 27, and the X coordinate is not changed after cutting and spreading, so the original X coordinate can be used as the horizontal dimension value of the point, the original vertical dimension of each point of the pre-cutting and spreading

paper patterns

102 and 103 is the Y coordinate of the figures 26 and 27, the Y coordinate is changed after cutting and spreading, and the vertical dimension of each point needs to be increased by delta L on the basis of the Y coordinate of each point of the figures 26 and 27 after cutting and spreading₁、ΔL₂…ΔL_nWhen the outer line is a diagonal line of Y ═ KX or a curve of Y ═ f (X), as shown in fig. 28 and 29, the X and Y coordinates have a functional relationship, and the corresponding X value can be calculated from the Y value at a certain point, so as to simplify the process of obtaining the size value of the intersection.

As shown in fig. 18 to 21, 26, and 28, according to the second embodiment of the present invention, an example of the calculation of the coordinates of each intersection of the cutback amount fused pattern 102c is as follows:

for intersection point G:

x-coordinate (0Y-coordinate)₁＝KX₁

For intersection point H:

x coordinate being X₁Y coordinate being Y₁+ΔL₁/2＝KX₁+ΔL₁/2

For intersection point F:

x-coordinate (0Y-coordinate)₁+ΔL₁＝KX₁+ΔL₁

For intersection point B:

x-coordinate (0Y-coordinate)₂＝KX₂

For intersection point C:

x coordinate being X₂Y coordinate being Y₂+ΔL₂/2＝KX₂+ΔL₂/2

For intersection point a:

x-coordinate (0Y-coordinate)₂+ΔL₂＝KX₂+ΔL₂

As shown in fig. 22 to 25, 27, and 29, according to the third embodiment of the present invention, an example of the calculation of the coordinates of each intersection of the cutback amount fused pattern 103c is as follows:

for intersection point G:

x-coordinate (0Y-coordinate)₁＝f(X₁)

For intersection point H:

x coordinate being X₁Y coordinate being Y₁+ΔL₁/2＝f(X₁)+ΔL₁/2

For intersection point F:

x-coordinate (0Y-coordinate)₁+ΔL₁＝f(X₁)+ΔL₁

For intersection point B:

x-coordinate (0Y-coordinate)₂＝f(X₂)

For intersection point C:

x coordinate being X₂Y coordinate being Y₂+ΔL₂/2＝f(X₂)+ΔL₂/2

For intersection point a:

x-coordinate (0Y-coordinate)₂+ΔL₂＝f(X₂)+ΔL₂

C) Application of the technical scheme

Firstly, the method comprises the following steps: web shape establishment and action

According to the fourth embodiment of the present invention, as shown in fig. 30 and 31, the cutting and spreading operation is performed on the paper pattern 104 before cutting and spreading, and in actual production, the cutting and spreading position and the angle may be different, and according to the paper pattern saving principle, the paper pattern can be converted into the same mode as that of fig. 30 and 31, and then the operation is performed by using the conversion principle.

If the method of the utility model is not adopted for conversion, the paper pattern image is directly merged into the intelligent knitting CAD, the paper pattern is placed at the bottommost layer, the intersection point setting is carried out by using the shape of the paper pattern and by means of tracing, and the shape of the web in the intelligent knitting CAD is obtained, as shown in figures 32 and 33.

The knitting process and the resulting knitted image are shown in fig. 34 and 35.

As can be seen from fig. 30 to 35, the original front-middle position 11 of the cut and spread front pattern 104 is changed into a slant line due to the cutting and spreading operation, and the slant line needs to be realized by a needle adding operation during the knitting, forming and knitting process, and this part is easy to deform and increase in bulk according to the knitting characteristics of the knitting, which affects the appearance and shape effect because this is half of the front piece, and if it is sewn with the other half of the front piece at the slant needle adding position, the sewing thread appearance is not straight, and the appearance and shape effect is affected.

The converted web shape resulting from the cut and spread pattern conversion process of the present invention is patterned and given the web shape, as shown in fig. 36, 37, referred to as product web 104 d.

The knitting process of the product web 104d and the resulting knitted image are shown in fig. 38, 39.

It can be seen from fig. 38 and 39 that the pattern remains straight at the front and middle positions 11, which is helpful for the beauty of the knitted product, and the front and middle positions are flat without excessive looseness, and meet the characteristics and requirements of the knitted product.

Secondly, the method comprises the following steps: dimension establishing method

As shown in fig. 40, the curve function between the intersection points a and b is Y ═ f (x), after the paper sample is cut and spread at point c, the transverse and straight dimensions of the intersection points have numerical relationships with the original function, and after the paper sample is cut and spread, the transverse and straight dimensions are inconvenient to measure, so that the transverse and straight dimensions of the corresponding intersection points of the paper sample after cutting and spreading can be calculated and obtained by using the corresponding curve function, the transverse and longitudinal coordinate values of the key points and the cut and spread value of the paper sample before cutting and spreading. Table 1 shows 3X, Y coordinate pairs obtained by using the lateral distances of the 3 key feature points a, b, and c on the curve Y (f) (X) from the front-middle position line 11 as X coordinates and the vertical distances from the bottom side as Y coordinates.

TABLE 1 Key characteristic points X, Y coordinate values

A function curve formula of the feature point coordinate pair is obtained as shown in fig. 41, and by using the function curve formula, the corresponding X value can be calculated according to the Y value of the corresponding intersection point.

In the intelligent knitting CAD software, the shape of the web can be obtained by tracing the paper pattern image, but the accurate control of the size requires inputting the transverse and straight dimensions of the intersection point, the dimension can be obtained by measuring the paper pattern before cutting and unfolding, the measurement of the paper pattern is inconvenient, especially under the condition of a plurality of cutting and unfolding parts, the curve function formula can be obtained by using the coordinates of key characteristic points, then the X and Y coordinates of other intersection points on the curve can be obtained by calculation according to the formula, and the transverse and straight dimension values of the intersection point of the intelligent knitting CAD web can be obtained by calculation. The resulting woven product of the fourth embodiment is shown in fig. 42-44.

According to a fifth embodiment of the present invention, the cut and spread pattern conversion method is applied to a case where a product has a plurality of cut and spread portions, as shown in fig. 45 to 46, for example.

Since the cut and spread pattern is 1/2 pattern, 2 pieces can be combined into 1 piece by knitting forming weaving, sewing operation is omitted, so the transverse dimension of the corresponding intersection point of the face sheet is 2 times of the transverse coordinate of the corresponding intersection point of the cut and spread pattern, for simplifying calculation, the transverse coordinate is input in 2 times, and the 3 cut and spread position coordinates are shown in fig. 47 and table 2.

TABLE 2 Key characteristic points X, Y coordinate values

Using the coordinate values in table 2, the straight line fitting formula Y ═ KX is obtained as shown in fig. 48.

Using this straight line fitting equation, X, Y coordinate values for other cutpoints can be calculated as shown in Table 3.

TABLE 3 calculated coordinates of cutpoints X, Y

Note: in table 3, the Y coordinate satisfies that Y is equal to nD, where n is a natural number of 0 to 11, since 12 times of cutting and spreading are performed, D is a cutting and spreading distance, and the cutting and spreading distances in this example are equal, and the value is 4.4; setting the Y coordinate of the first cutting and unfolding as 0; the X coordinate is calculated from the Y coordinate value using the fitting formula of fig. 48.

The coordinate values in table 3 are set as the transverse dimension values of the corresponding intersection points in the smart-knitting CAD, and the longitudinal dimension values of the corresponding intersection points are determined by superimposing the Y coordinate values and the cut-and-spread amounts in table 3 as shown in fig. 49 to 51.

Fig. 52-53 illustrate the weaving process and the knit image of the multi-cut spread pattern 105.

According to the above technical concept design of the inventor, through summarization and summarization, the applicant proposes the following technical solutions for industrial application.

Referring to fig. 10-47, a conversion method of a cut and spread pattern into a product web required in the next process software according to another preferred embodiment of the present invention comprises the following conversion steps:

as shown in fig. 10, cut and spread positions L1, L2, … … Ln are marked in the sample to be cut and spread to form

samples

101, 102, 103, 104, 105 before cutting and spreading. It is understood that the pattern may be an actual paper pattern, or a pattern figure drawn by engineering drawing software or clothing CAD software. Alternatively, the lower process software can be clothing CAD software or intelligent knitting CAD software with a lower process function module, or professional lower process software. The sample sheet of fig. 10 shows two cutting and spreading positions L1, L2, i.e., the number of cutting and spreading n is 2. The pattern embodiment of fig. 18 and 22 shows two cutting and spreading positions. The sample embodiment of fig. 30 shows one cutting and spreading position, i.e., the cutting and spreading number n is 1. The paper pattern example of fig. 45 shows 12 cutting and spreading positions L1, L2, … … Ln, that is, the cutting and spreading number n is 12.

It will be appreciated that the mark lines of the abduction position may be curved lines, such as wavy lines, zigzag lines, or sine or cosine curves. Preferably, the marking line of the cutting and unfolding position is a straight line, and the line type accords with the concise and efficient design concept.

As shown in fig. 11, the

paper patterns

101, 102, 103, 104, 105 are cut and spread at the cutting and spreading positions L1, L2, … … Ln before cutting and spreading, and form triangular notches 23, respectively, and the three notches are formedThe bottom edge 24 of the angle cut 23 is positioned on the outer line 21 of the pre-cutting and spreading pattern, the top angle 25 of the triangle cut 23 is positioned on the inner line 22 of the pre-cutting and spreading pattern, wherein the length of the bottom edge 24 of the triangle cut 23 corresponds to the cutting and spreading amount DeltaL at each cutting and spreading position L1, L2 and … … Ln₁，ΔL₂，……ΔL_nThe pre-cutting and spreading

patterns

101, 102, 103, 104, 105 are converted into post-cutting and spreading

patterns

101a, 102a, 103a, 104a, 105 a. As clearly shown in fig. 10, the outer line 21 and the inner line 22 of the cut and spread pattern 101 are two parallel vertical lines, and after the first cutting and spreading conversion, the outer line 21 and the inner line 22 of the cut and spread pattern 102a are bent to different degrees. Cut and spread amount DeltaL as required₁，ΔL₂And may be equal or unequal. It is understood that the first cutting and unfolding conversion can be performed by an actual paper pattern, or by a pattern graph transformation in CAD software. The outer wire shown in fig. 11 is broken in segments after cutting and unfolding, and the inner wire remains continuous after cutting and unfolding.

As shown in fig. 12, in the post-cutting and spreading

patterns

101a, 102a, 103a, 104a, and 105a, the cutting and spreading blocks B1, B2, and … … Bn are shifted by the cutting and spreading amount Δ L along the inner lines 22 of the pre-cutting and spreading patterns 101, 102, 103, 104, and 105₁，ΔL₂，……ΔL_nForming a rectangular cutting and spreading area ABED, wherein the lengths of a first side line AB and a second side line ED of the rectangular cutting and spreading area ABED along the direction of the inner line 22 of the pre-cutting and spreading paper pattern are equal to the corresponding cutting and spreading amount delta L of the rectangular cutting and spreading area ABED₁，ΔL₂，……ΔL_nAnd drawing a first straight line segment AC, a second straight line segment BC and a third straight line segment DE, wherein the first end point of the first straight line segment AC is positioned at the first corner A of the rectangular cutting and expanding area ABED, the first end point of the second straight line segment BC is positioned at the second corner B of the rectangular cutting and expanding area ABED, and the second end point C of the first straight line segment AC and the second end point C of the second straight line segment BC are intersected at the midpoint C of the third straight line segment DE, and the cut and expanded paper patterns 101a, 102a, 103a, 104a and 105a are converted into cut and expanded embedded paper patterns 101B, 102B, 103B, 104B and 105B. In FIG. 12, the first straight line segment AC, the second straight line segment BC, and the third straight line segment DEAre shown in dashed lines to distinguish them from the pattern contours. And the inner and outer lines 22 of the second cut-and-spread converted pattern are restored to be parallel to each other. According to the

embodiments

2 and 3, as shown in fig. 20 and 24, the outer line of the pattern may be an oblique straight line or a curved line, and the cutting and expanding area after the second cutting and expanding conversion is approximately represented by a rectangle. It will be appreciated that the second cutting and unfolding conversion can be done by actual paper patterns, or by pattern graphics transformation in CAD software. As shown in fig. 12, the pattern is cut and spread into three cut and spread blocks B1, B2, B3, and as a 1 st embodiment of the simple pattern, each cut and spread block is a rectangle, wherein the side lengths AP, BF of the rectangle of the cut and spread block correspond to the cutting and spreading distance and are related to the coordinates of the cutting and spreading position. It is understood that the cutout pieces may be other shapes, such as the shapes of the cutout pieces shown in fig. 20, 24, 31, 46 in the

embodiments

2, 3, 4, 5.

It is understood that the second end point C of the first straight line segment AC and the second end point C of the second straight line segment BC intersect at the substantial midpoint C of the third straight line segment DE, that is, the intersection point C may deviate slightly from the vicinity of the midpoint of the third straight line segment DE, and the deviation of the intersection point C to such an extent is still within the protection scope of the present invention, as long as the skilled person considers that the deviation does not prevent the implementation of the design idea of the present invention.

As shown in fig. 12, in the cut-and-spread amount embedded

patterns

101b, 102b, 103b, 104b, 105b, the third side line AD and the fourth side line BE of the rectangular cut-and-spread area ABED are erased for each of the rectangular cut-and-spread areas ABED, and the cut-and-spread amount embedded

patterns

101b, 102b, 103b, 104b, 105b are thereby converted into cut-and-spread amount fused

patterns

101c, 102c, 103c, 104c, 105 c. This is the third cutting and unfolding transformation, which accomplishes the transformation step of transferring the cutting and unfolding cuts from the outer line to the inner line. Through the above conversion steps, the shape of the inner line 22 of the cut and spread pattern remains unchanged before and after the cutting and spreading. In the cut panels of actual clothes, the outer lines of the corresponding patterns can be irregular lines which are starting points for cutting, unfolding and converting, and the inner lines of the corresponding patterns are generally the seams among the panels or the central symmetrical lines of the panels and are often straight lines.

Therefore, it is preferable that the inner line of the cut and spread amount embedded pattern 101b of the cut and spread amount embedded pattern 101a of the cut and spread front pattern 101a corresponds to a sewing line or a web central symmetry line of the garment. In the 4 th embodiment, as shown in fig. 30-40, after the three times of stretch-cut transformation, the inner line 22 of the product web 104d, i.e. the front-middle position 11 of the formed knitted product, remains in a straight line state, so that during the knitting process, the needle-adding operation is not needed, the front-middle stitching position of the formed knitted product is not easily deformed, and the appearance effect of the formed knitted product is not affected.

Optionally, the outer line of the pre-cut and expanded paper pattern 101, the post-cut and expanded paper pattern 101a, the cut and expanded amount embedded paper pattern 101b and the cut and expanded amount fused paper pattern 101c corresponds to the starting boundary of the cut and expanded area of the cut and expanded panel of the garment, and the inner line corresponds to the ending boundary of the cut and expanded area of the cut and expanded panel of the garment.

It is understood that the third cutting and unfolding conversion can be completed by an actual paper pattern, and can also be completed by pattern graphic transformation in CAD software.

As shown in fig. 38 and 39, the graphs of the cut and spread amount fused

patterns

101c, 102c, 103c, 104c, and 105c are input into the next process software, and the cut and spread amount fused

patterns

101c, 102c, 103c, 104c, and 105c are thereby converted into the product face sheet 104d in the next process software. Fig. 38 shows a knitting process sheet of the 4 th embodiment, and fig. 39 shows a knitted image of the 4 th embodiment, in which the contour lines of the cut-and-spread amount blending pattern are displayed. It can be understood that the figures of the cut-and-spread-amount fused

paper patterns

101c, 102c, 103c, 104c, 105c are the same as the figures of the product web 104d, except that the carriers thereof are different, the carriers of the cut-and-spread-amount fused paper patterns can be paper carriers, and can also be figures in the clothing paper pattern CAD software, and the product web is figures in the next-process CAD software, and the inside of the product web contains information such as the web weaving process.

According to the cutting and spreading pattern principle and the intersection point size setting method of next process software, the product web 104d is used for completing measurement or numerical calculationSetting the size of the intersection point of the forming woven product web, wherein the size value of the intersection point of the forming woven product web can utilize the horizontal and vertical coordinate values of the corresponding intersection point of the

paper patterns

101, 102, 103, 104, 105 before cutting and unfolding, the cutting and unfolding position L1, L2, … … Ln coordinate values, the cutting and unfolding distance, the cutting and unfolding quantity N and the cutting and unfolding quantity delta L₁，ΔL₂，……ΔL_nThereby converting said patterned production web 104d into a digitized production web. Referring to figures 40 and 41, the coordinate value function of the formed woven product panel intersection point of embodiment 4 is shown by curve fitting in figure 41. Figure 48 shows a curve fit characterization of coordinate value function of the shaped woven product web intersection points of embodiment 5.

It will be appreciated that for paper patterns, a length or angle measuring tool may be used to effect a direct measurement of the intersection coordinate values of the formed woven product webs and input into the next set of process software. For the web in the CAD software, after the web graph is subjected to vectorization treatment, a coordinate picker and other similar tools in the CAD software can be used for obtaining the intersection point coordinate value of the web of the formed woven product, and the intersection point coordinate value is stored in next process software, so that the step of manual input is omitted. For a plurality of cut and spread paper patterns, for example 12 cut and spread in the embodiment 5, because the number of the coordinate values of the intersection point of the web to be acquired is large, the manual workload is very large and the error is easy to occur no matter the measurement is performed manually or indirectly by means of CAD software. Therefore, by manually measuring several pieces of critical dimension data on the paper pattern before cutting and spreading, for example, the 5 th embodiment shown in fig. 47, manually measuring the coordinates of the three key feature points shown in table 2, and then obtaining the relevant coordinate functions by curve fitting, the coordinate values of the respective cutting and spreading points can be obtained quickly by calculation, as listed in table 3.

The paper pattern transfers the cutting and spreading cut from the outer line to the inner line of the formed knitted product web through the three times of conversion, so that the technical purpose of keeping the shape of the inner line basically unchanged before and after conversion is achieved, the product cannot be locally deformed, and the technical effect that the appearance of the product is consistent with the design expectation is kept. And the digitization of the graph is realized, and basic data is provided for the use of the computerized flat knitting machine.

Preferably, the coordinate values of the corresponding intersection points of the pre-cutting and spreading

patterns

101, 102, 103, 104, 105 are

YA_i′＝f(XA_i′)

Wherein, YA_i′Is the Y coordinate value, XA, of the i' th corresponding intersection point of the pre-cutting and spreading

patterns

101, 102, 103, 104, 105_i′Is the X coordinate value of the ith' corresponding intersection point of the

paper patterns

101, 102, 103, 104 and 105 before cutting and spreading;

the coordinate value of the intersection point of the webs of the formed woven product is

XE_i＝XA_i′

Wherein, YE_iIs the Y coordinate value, XE, of the ith corresponding intersection point of the web of the formed knitted product_iIs the X coordinate value of the ith corresponding intersection point of the formed knitted product web, and the first coefficient alpha_iTaking 0 or 1, a second coefficient beta_ijTaking 0, 1/2 or 1, the value range of the intersection serial number i is [1, N]，ΔL_jIs the jth value of the cutback, wherein j has a value in the range of [1, k ]]K is the cutting and unfolding serial number, i' is the intersection serial number of the paper pattern before cutting and unfolding, and i is the intersection serial number of the product web.

According to the first embodiment, the pre-cut and spread paper pattern 101 is a simple rectangular strip, the calculation of the coordinates of the intersection points is simple, and the calculation of the coordinates of each intersection point of the formed woven product web is exemplified as follows:

the intersection coordinate values of the pre-cutting and spreading

patterns

101, 102, 103, 104 and 105 are as follows:

the setting is cut the exhibition piece and is the square, that is to say cuts exhibition interval partition, and its length of side is L, then has:

XA_i′＝γ_i′×L，YA_i′＝L+XA_i′wherein γ is_i′0 or 1

As shown in fig. 14, for the 1 st cutExhibition point coordinate XA₁，YA₁，

XA₁＝L YA₁＝L γ₁＝0

For 2 nd incisor and expansion intersection coordinates XA₂，YA₂，

XA₂＝L YA₂＝2L γ₂＝1

For the 3 rd cutover intersection coordinate XA₃，YA₃，

XA₃＝0 YA₃＝L γ₃＝0

For the 4 th incisional-and-unfolding intersection coordinate XA₄，YA₄，

XA₄＝0 YA₄＝2L γ₄＝1

The coordinate value of the forming woven product web intersection point is as follows:

XE_i＝XA_i′

the intersection G of the cut and spread amount fusion pattern 101c and the intersection XA of the pre-cut and spread pattern 101₃，YA₃Correspondingly:

XE₁＝XA₃＝0

wherein alpha is₁＝1，β₁₁＝0，i＝1，i′＝3，k＝1

For the intersection H of the cut and spread amount fusion pattern 101 c:

XE₂＝XA₁＝L

wherein alpha is₂＝1，β₂₁＝1/2，i＝2，i′＝1，k＝1

For the intersection F of the cut and spread amount fusion pattern 101 c:

XE₃＝XA₃＝0

wherein alpha is₃＝1，β₃₁＝1，i＝3，i′＝3，k＝1

For the intersection B of the cutback amount fusion pattern 101 c:

XE₄＝XA₄＝0

wherein alpha is₄＝1，β₄₁＝1，β₄₂＝0，i＝4，i′＝4，k＝2

For intersection point C:

XE₅＝XA₂＝L

wherein alpha is₅＝1，β₅₁＝1，β₅₂＝1/2，i＝5，i′＝2，k＝2

For intersection point a:

XE₆＝XA₄＝0

wherein alpha is₆＝1，β₆₁＝1，β₆₂＝1，i＝6，i′＝4，k＝2

Referring to fig. 30 to 41, according to the fourth embodiment of the present invention, the intersection coordinate values of the pre-cut and spread pattern 104 are:

referring to Table 1, as shown in FIGS. 30 and 40, for the 1 st incisional intersection coordinateXA₁，YA₁，

XA₁＝18.6 YA₁＝f(XA₁)＝8.4

For 2 nd incisor and expansion intersection coordinates XA₂，YA₂，

XA₂＝0 YA₂＝f(XA₂)＝8.4

The function f (x) is given in fig. 41.

As shown in fig. 36 and 37, the intersection a of the cut-and-spread amount fusion pattern 104c and the product web 104d and the intersection XA of the pre-cut-and-spread pattern 104₂，YA₂Correspondingly, the coordinates are calculated as follows:

XE₁＝XA₂

wherein alpha is₁＝1，β₁₁＝0，i＝1，i′＝2，k＝1

The amount of cutback merges the coordinates of the intersection B of the pattern 104c and the production web 104 d:

XE₂＝XA₂

wherein alpha is₂＝1，β₁₁＝1，i＝1，i′＝2，k＝1

The amount of cutback merges the coordinates of the intersection C of the pattern 104C and the production web 104 d:

XE₃＝XA₁

wherein alpha is₃＝1，β₁₁＝1/2，i＝1，i′＝1，k＝1

The calculation related to the second, third and fifth embodiments can be similarly performed, and will not be described in detail here.

Preferably, when a plurality of cut-and-spread portions are formed by adding the cut-and-spread portions to the pre-cut-and-spread

paper patterns

101, 102, 103, 104, and 105, the intersection coordinate value YA corresponds to_i＝f(XA_i) Can be obtained by a curve fitting formula of the key characteristic point coordinates. Examples of such curve fitting functions are given above in the fourth and fifth embodiments and in fig. 41 and 48.

Preferably, for the pattern with the small number of cutting and spreading, the corresponding intersection coordinate values of the pre-cutting and spreading

patterns

101, 102, 103, 104, 105 are obtained by actual measurement.

Preferably, most often, the coordinate values of the corresponding intersection points of the pre-cutting and spreading

patterns

101, 102, 103, 104, 105 are the same

YA_i′＝K×XA_i′

Wherein K is a constant. The second embodiment herein is of this type.

The use of a digitized production web for industrial production is the final technical object of the present invention, for which purpose, according to a first preferred embodiment of the inventive clothing pattern-based downloading process compilation, said downloading process compilation comprises the following steps:

drawing a clothing paper sample drawing by a prototype method according to the style requirement and specification size of the clothing;

converting the clothing paper pattern into a required web picture in next process software according to the conversion method of the cut and spread paper pattern into the required web picture in next process software;

the next process sheet to generate the web map.

Fig. 54 shows an example of the next process sheet generated in the smart knitting CAD software. For the use and operation of the intelligent knitting CAD software, please refer to the related help document, which is not detailed here.

Preferably, the needle opening mode, the body for foot-over, the narrowing mode and the size of the picture are modified in a lower setting interface of the lower process software.

FIG. 55 shows a lower set-up interface of the lower process software for modifying the needle opening pattern.

Preferably, size setting is performed in a lower setting interface of the lower process software to produce garments of different sizes.

FIG. 56 shows a run setup interface for the run process software, which is used for size setting.

Advantageously, the intersection coordinates or dimensional data are calculated using scientific calculation software.

Based on the accurate next technical list, the applicant provides a new sweater technical scheme for batch production of sweaters in industrial production. According to a first preferred embodiment of the utility model, the sweater process scheme comprises the following steps:

and knitting and manufacturing the sweater finished product in a computerized flat knitting machine based on the motor gear of the sweater.

Fig. 57 shows an example of a knitting image file output in the smart knitting CAD software.

Fig. 58 shows an example of the motor steps output in the smart knitting CAD software.

Based on the same inventive concept, the applicant proposes a new sweater knitting apparatus comprising:

a counting process list generating device which can generate the counting process list of the sweater according to the counting process compiling method; it is to be understood that the drop number process sheet generation means is composed of, for example, drop number process software and a computer capable of executing the software.

A knitted image file generating device capable of creating a knitted image file of the sweater in knitting CAD software based on the next process list of the sweater; it is understood that the knitting image file generating means is composed of, for example, intelligent knitting CAD software and a computer that runs the software.

A motor gear generation device which can make a motor gear of the sweater in knitting CAD software based on the knitting image file of the sweater; it will be understood that the motor profile generation means are constituted, for example, by intelligent knitting CAD software and a computer running the software.

And the computerized flat knitting machine can automatically knit the sweater finished product based on the computerized flat knitting machine control file of the sweater. The computerized flat knitting machine may be a commercial machine that is capable of reading the computerized flat knitting machine control file of the present invention.

The inventor skillfully uses the cutting and spreading pattern principle in the method for improving the knitting process formulation of the computerized flat knitting machine, thereby greatly reducing the error rate of the sweater pattern, reducing the communication difficulty between a pattern engineer and a process engineer, reducing the production cost, and achieving the technical effects of improving the design speed of clothing products and improving the production efficiency.

The patent documents CN105852295A, CN107467762A, CN202396523U, CN106723567A, CN105982381A, CN105455277A, CN205125189U, CN104790109A, CN206213370U, CN106757713A, CN203683856U, CN106676738A, and CN102041619A disclose parts, elements, components, or devices related to the creation of the present invention, and therefore, the structural relationship, the positional relationship, the force relationship, the motion relationship, the energy relationship, the momentum relationship, the information transmission relationship, the information conversion relationship, and the like between the parts, elements, and components, which are not mentioned herein, can be understood by referring to the above-cited patent documents. The technical content of said patent documents cited herein thus forms part of the present patent application. All published patent documents in the technical fields related to the creation of the present invention may provide prior art references to the present patent application, where necessary.

The foregoing detailed description of preferred or specific embodiments of the utility model has been presented. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the spirit and scope of the utility model. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the design concepts of the present invention and based on the prior art should be within the scope of the present invention or the protection scope defined by the claims.

Claims

1. A method for converting a cut and spread sheet into a product web required in the next process software, said method comprising the steps of:

cutting and unfolding the pre-cutting and unfolding positions of the paper pattern, and respectively forming triangular notches, wherein the bottom edges of the triangular notches are positioned on the outer lines of the pre-cutting and unfolding paper pattern, the vertex angles (25) of the triangular notches are positioned on the inner lines (22) of the pre-cutting and unfolding paper pattern, the length of the bottom edge (24) of each triangular notch (23) corresponds to the cutting and unfolding amount (delta L) of each cutting and unfolding position (L1, L2, … … Ln)₁，ΔL₂，……ΔL_n) The pre-cutting and spreading paper patterns (101, 102, 103, 104, 105) are converted into post-cutting and spreading paper patterns (101a, 102a, 103a, 104a, 105 a);

in the post-cutting and spreading patterns (101a, 102a, 103a, 104a, 105a), each cutting and spreading block (B1, B2, … … Bn) is translated by a corresponding cutting and spreading amount (delta L) along the inner line (22) of the pre-cutting and spreading patterns (101, 102, 103, 104, 105)₁，ΔL₂，……ΔL_n) Forming a rectangular cutand development Area (ABED), wherein the lengths of a first side line (AB) and a second side line (ED) of the rectangular cutand development Area (ABED) along the inner line (22) direction of the pre-cutand-development pattern are equal to the corresponding cutand development amount (delta L)₁，ΔL₂，……ΔL_n) And drawing a first straight line segment (AC), a second straight line segment (BC) and a third straight line segment (DE), wherein the first end point of the first straight line segment (AC) is positioned at the first corner (A) of the rectangular cutting and expanding Area (ABED), and the first end point of the second straight line segment (BC) is positioned at the rectangular cutting and expanding Area (ABED)And a second end point (C) of the first straight line segment (AC) and a second end point (C) of the second straight line segment (BC) intersect at a midpoint (C) of the third straight line segment (DE), whereby the post-cut and spread pattern (101a, 102a, 103a, 104a, 105a) is converted into a cut and spread amount embedded pattern (101B, 102B, 103B, 104B, 105B);

erasing a third border line (AD) and a fourth border line (BE) of the rectangular cutting and spreading Area (ABED) for each of the rectangular cutting and spreading Areas (ABED) in the cutting and spreading amount embedded paper patterns (101b, 102b, 103b, 104b, 105b), whereby the cutting and spreading amount embedded paper patterns (101b, 102b, 103b, 104b, 105b) are converted into cutting and spreading amount fused paper patterns (101c, 102c, 103c, 104c, 105 c); through the conversion step, the shape of the inner line (22) of the cut and spread paper pattern is still unchanged before and after the cutting and spreading;

inputting the graphs of the cutting and spreading amount fused paper patterns (101c, 102c, 103c, 104c, 105c) into next process software, and converting the cutting and spreading amount fused paper patterns (101c, 102c, 103c, 104c, 105c) into product webs (104d) in the next process software,

according to the cutting and spreading paper pattern principle and the next process software intersection point size setting method, the intersection point size setting of the product web (104d) is completed through measurement or numerical calculation, wherein the size value of the intersection point of the product web can utilize the horizontal and vertical coordinate values of the corresponding intersection point of the paper patterns (101, 102, 103, 104, 105) before cutting and spreading, the cutting and spreading position (L1, L2, … … Ln) coordinate values, the cutting and spreading interval, the cutting and spreading quantity N and the cutting and spreading quantity (delta L)₁，ΔL₂，……ΔL_n) A functional relationship of values is obtained whereby said product web (104c) is converted to a digitized product web (104 d).

2. The conversion method according to claim 1, characterized in that the corresponding point of intersection coordinates of said pre-cut and spread patterns (101, 102, 103, 104, 105) are the same as

YA_i′＝f(XA_i′)

Wherein, YA_i′Is the Y coordinate value, XA, of the i' th corresponding intersection point of the pre-cutting and spreading patterns (101, 102, 103, 104, 105)_i′Is the X coordinate value of the ith' corresponding intersection point of the paper patterns (101, 102, 103, 104, 105) before cutting and spreading;

the coordinate value of the intersection point of the webs of the formed knitted product is

XE_i＝XA_i′

3. The conversion method according to claim 2, characterized in that the corresponding intersection coordinate YA of the pre-cut and spread pattern (101, 102, 103, 104, 105)_i＝f(XA_i) Obtained by curve fitting of a plurality of key feature point coordinates.

4. The conversion method according to claim 1, characterized in that the corresponding intersection coordinate values of the pre-cutting and spreading patterns (101, 102, 103, 104, 105) are obtained by actual measurement.

5. The conversion method according to claim 2, characterized in that the corresponding intersection point coordinate values of the pre-cutting and spreading patterns (101, 102, 103, 104, 105) are

YA_i＝K×XA_i

Wherein K is a constant.

6. The method for knitting the lower number of the CAD based on the clothing pattern is characterized by comprising the following steps:

drawing a clothing structure paper pattern by a prototype method according to the clothing style requirement and specification and size;

the conversion method according to any one of claims 1 to 5, converting said garment construction pattern into a web pattern required in the next process software;

the next process sheet to generate the web map.

7. The method for programming the lower number process of the knitting CAD based on the clothing pattern according to claim 6, characterized in that the modification of the relevant data in the lower number setting interface of the lower number process software comprises the following steps:

a conversion process according to any of claims 1 to 5, wherein the dimensions of the web intersections are modified to obtain a modified descending file;

based on the modified next file, the modified knitting process comprises a needle opening mode, a needle body removing and setting mode.

8. The method for knitting CAD based on clothing pattern as claimed in claim 6, wherein the size setting is performed in the lower setting interface of the lower process software to produce clothing of different sizes.

9. The sweater technical scheme is characterized by comprising the following steps:

generating a drawing technical list of the sweater according to the drawing technical compiling method of any one of claims 6 to 8;

10. Sweater knitting equipment, characterized by, sweater knitting equipment includes:

a drawing list generation device capable of generating a drawing list of the sweater according to the drawing list generation method of any one of claims 6 to 8;