阅读说明：本技术 一种上衣用单嵌线挖袋的裁剪与缝制方法 (Cutting and sewing method of single-embedded-line dug bag for jacket ) 是由 于媛媛 刘红艳 刘让同 涂红燕 王艳 鲍礼媛 赵琳 于 2021-05-21 设计创作，主要内容包括：本发明提供一种上衣用单嵌线挖袋的裁剪与缝制方法,包括以下步骤：S1.准备好开袋面料、嵌线布、贴边布、袋布、定型纸板条；S2.在开袋面料上定位开袋位置；S3.在开袋面料开袋位置处反面粘衬；S4.在嵌线布的反面粘衬；S5.在贴边布横向一边折边熨烫至面料反面待用；S6.将开袋面料和嵌线布准备缝合；S7.缝合袋口上缉缝线和下缉缝线；S8.袋口的定型熨烫；S9.开袋面料袋口两端剪成三角形状；S10.得到袋口；S11.通过坐缉缝缝型进行缉缝；S12.固定袋口下侧；S13.将贴边布下侧缉缝到袋布上；S14.缉缝固定三角和袋口上侧；S15.缝合两侧袋布。本发明的上衣用单嵌线挖袋的裁剪与缝制方法,简化工序,提高袋口工艺质量,口袋造型平整美观。(The invention provides a cutting and sewing method of a single-inlaid-wire dug bag for a jacket, which comprises the following steps: s1, preparing a bag opening fabric, a thread embedding cloth, a border cloth, a bag cloth and a shaping paperboard strip; s2, positioning a bag opening position on a bag opening fabric; s3, adhering a lining on the reverse side of the bag opening position of the bag opening fabric; s4, adhering a lining on the reverse side of the wire embedding cloth; s5, folding and ironing the transverse edge of the welting cloth to the back side of the fabric for later use; s6, preparing the bag opening fabric and the thread embedding cloth for sewing; s7, stitching an upper stitching thread and a lower stitching thread on the bag opening; s8, shaping and ironing the bag opening; s9, cutting two ends of a bag opening of the fabric into triangular shapes; s10, obtaining a bag opening; s11, stitching is carried out through a sitting stitching type; s12, fixing the lower side of the bag opening; s13, stitching the lower side of the edge cloth to the bag cloth; s14, stitching and fixing the triangle and the upper side of the pocket mouth; s15, sewing the bag cloth on the two sides. The cutting and sewing method of the single-inserting-line dug bag for the jacket simplifies the working procedures, improves the process quality of the pocket opening, and has smooth and attractive pocket appearance.)

1. A cutting and sewing method of a single-inserting-line dug bag for a jacket is characterized in that: the method comprises the following steps:

s1, preparing a bag opening fabric, a thread embedding cloth, a border cloth, a bag cloth and a shaping paperboard strip;

s2, positioning a bag opening position on a bag opening fabric;

s3, adhering linings on the reverse side of the bag opening position of the bag opening fabric, drawing a bag opening position on the front side of the fabric after adhering the linings, drawing a bag opening line, and extending two sides of the bag opening line by 2-3 cm respectively to be used as bag opening auxiliary lines of the bag opening fabric;

s4, adhering a lining on the reverse side of the inlaid wire cloth, drawing bag opening length and width lines at a position 1.5-2.5 cm away from the upper end of the obverse side of the inlaid wire cloth, drawing bag opening lines on the inlaid wire cloth, and then extending the bag opening length and the width lines by 2-3 cm to be used as auxiliary lines of the inlaid wire cloth bag opening;

s5, folding and ironing a cloth edge of 0.5-1.5 cm at one transverse edge of the welting cloth to the back surface of the fabric for later use;

s6, placing the bag opening auxiliary line of the bag opening fabric and the auxiliary line of the bag inserting opening completely in a superposed manner to prepare for sewing, wherein the front side of the bag opening fabric is upward, the front side of the thread inserting cloth is downward, and the front sides of the bag opening fabric and the thread inserting cloth are opposite;

s7, stitching an upper stitching thread and a lower stitching thread on the bag opening;

s8, aligning one side of the upper side of the shaping paperboard strip with the inlaid wire cloth to edit a sewing wire, then wrapping the inlaid wire cloth on the shaping paperboard strip, turning upwards, and then shaping and ironing the pocket mouth to form a single inlaid wire pocket mouth;

s9, after the pocket mouth is ironed, breaking the pocket opening fabric and the inserting line cloth along the pocket opening line, cutting the inserting line cloth into an upper part and a lower part, and cutting two ends of the pocket mouth of the pocket opening fabric into a triangular shape;

s10, turning the upper and lower parts of the inlaid wire cloth to the reverse side of the pocket fabric through a pocket opening line, finishing and flattening the inlaid wire cloth on the reverse side of the pocket fabric, and ironing and shaping a pocket opening on the front side according to a set specification to obtain a pocket opening;

s11, inverting the bag opening sewing head with the upper side of the bag opening being 0.5-0.7 cm to one side of the thread inserting cloth, and stitching the front side of the thread inserting cloth with a stitching thread being 0.1-0.3 cm away from the bag opening by a stitching type;

s12, fixing the lower side of the bag opening, and sewing the end b of the bag cloth to the lower side inlaid wire cloth;

s13, hemming and ironing the lower side of the welting cloth according to a seam of 1-1.2cm, aligning the upper side of the welting cloth with the upper side of the a end of the pocket cloth, and stitching the lower side of the welting cloth on the pocket cloth;

s14, folding the bag cloth in half, aligning the upper edge of the end a of the bag cloth with the upper end of the upper inserting line cloth, pulling out and leveling triangles at two ends of the bag mouth, and stitching and fixing the triangles and the bag mouth from the left end of the bag mouth along the outside of the net line of the bag mouth by 0.1-0.2 cm;

s15, sewing the bag cloth on the two sides.

2. The cutting and sewing method of the single-inlaid wire dug bag for jacket according to claim 1, characterized in that: the step S1 is a one-piece wire-embedding cloth.

3. The cutting and sewing method of the single-inlaid wire dug bag for jacket according to claim 1, characterized in that: and step S3, the size of the adhesive lining is respectively added by 1-2 cm on the basis of the length and width of the bag opening.

4. The cutting and sewing method of the single-inlaid wire dug bag for jacket according to claim 1, characterized in that: the step S7 specifically includes: stitching the upper side of the pocket mouth by stitching, stitching the upper side of the pocket mouth by stitching from a point a at the left end of the pocket mouth, stitching 2-3 needles, fixing the upper side of the pocket mouth by back stitching, stitching along the drawn pocket mouth, stitching a point b at the right end of the pocket mouth by the back stitching in the same way, stitching the lower side by the same method, keeping the upper stitching parallel to the lower stitching, and respectively stitching an a point a at the upper side of the left end, a point c at the lower side of the left end, a point c at the right end and a point d at the right end on a vertical line.

5. The cutting and sewing method of the single-inlaid wire dug bag for jacket according to claim 1, characterized in that: and in the step S9, the inlaid wire cloth is cut into 2 pieces along the bag opening line of the bag opening fabric and the inlaid wire cloth, the bag opening fabric is cut along the bag opening line to a position 1-1.2cm away from each of four end points of the bag opening, and the two ends of the bag opening fabric are cut into a triangular shape.

Technical Field

The invention relates to the technical field of garment manufacturing technology, in particular to a cutting and sewing method of a single-inlaid-line dug bag for a jacket.

Background

The single-inlaid-line dug bag has a wide application range and field, such as skirts, suits, trousers, winddresses, jackets and casual coats, and the structure and the technological form of the single-inlaid-line dug bag are important standards for measuring the quality of ready-made clothes, so that the sewing technological requirement of the pocket is high, and parts needing fine operation often need much time and energy of workers. The common wire pocket is divided into two types according to the structural form: single and double wire pocket; the traditional single-rule pocket cutting and sewing method has the following defects in the actual operation process: firstly, the thread inserting cloth is divided into an upper thread inserting cloth and a lower thread inserting cloth, the upper structure and the lower structure and the size are different, and the positions of the upper thread inserting cloth and the lower thread inserting cloth are easy to be placed and reversed during sewing; secondly, the lower thread-inserting cloth needs to be buckled and ironed in advance and marked with stitching auxiliary threads, the cutting is complex, the sewing process is complicated, and errors are easy to occur; thirdly, when the bag opening is cut, stubble is easy to appear at two ends of the bag, and the bag shape quality is not high; fourthly, the ironing links are multiple, the shapes ironed by the pocket teeth are easy to have the defects of inconsistent sizes of the upper part and the lower part and the left part and the right part, the whole process is complicated, and the efficiency is low; fifthly, the requirement on a process operator is high when stitching is stitched on the upper and lower inlaid threads, and the process quality of the pockets is influenced because the stitching shape characteristics of the upper and lower inlaid threads cannot be seen from the front side and the defects that the upper and lower inlaid threads are not parallel to each other and the widths of the pockets at the left and right ends are not consistent easily occur.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a cutting and sewing method of a single-inlaid-line dug bag for a jacket, which can prevent a pocket from falling and losing. The technical scheme adopted by the invention is as follows:

a cutting and sewing method of a single-inserting-line dug bag for a jacket is disclosed, wherein: the method comprises the following steps:

s1, preparing a bag opening fabric, a thread embedding cloth, a border cloth, a bag cloth and a shaping paperboard strip;

s2, positioning a bag opening position on a bag opening fabric;

s3, adhering linings on the reverse side of the bag opening position of the bag opening fabric, drawing a bag opening position on the front side of the fabric after adhering the linings, drawing a bag opening line, and extending two sides of the bag opening line by 2-3 cm respectively to be used as bag opening auxiliary lines of the bag opening fabric;

s4, adhering a lining on the reverse side of the inlaid wire cloth, drawing bag opening length and width lines at a position 1.5-2.5 cm away from the upper end of the obverse side of the inlaid wire cloth, drawing bag opening lines on the inlaid wire cloth, and then extending the bag opening length and the width lines by 2-3 cm to be used as auxiliary lines of the inlaid wire cloth bag opening;

s5, folding and ironing a cloth edge of 0.5-1.5 cm at one transverse edge of the welting cloth to the back surface of the fabric for later use;

s6, placing the bag opening auxiliary line of the bag opening fabric and the auxiliary line of the bag inserting opening completely in a superposed manner to prepare for sewing, wherein the front side of the bag opening fabric is upward, the front side of the thread inserting cloth is downward, and the front sides of the bag opening fabric and the thread inserting cloth are opposite;

s7, stitching an upper stitching thread and a lower stitching thread on the bag opening;

s8, aligning one side of the upper side of the shaping paperboard strip with the inlaid wire cloth to edit a sewing wire, then wrapping the inlaid wire cloth on the shaping paperboard strip, turning upwards, and then shaping and ironing the bag mouth;

s9, after the pocket mouth is ironed, breaking the pocket opening fabric and the inserting line cloth along the pocket opening line, cutting the inserting line cloth into an upper part and a lower part, and cutting two ends of the pocket mouth of the pocket opening fabric into a triangular shape;

s10, turning the upper and lower parts of the inlaid wire cloth to the reverse side of the pocket fabric through a pocket opening line, finishing and flattening the inlaid wire cloth on the reverse side of the pocket fabric, and ironing and shaping a pocket opening on the front side according to a set specification to obtain a pocket opening;

s11, inverting the bag opening sewing head with the upper side of the bag opening being 0.5-0.7 cm to one side of the thread inserting cloth, and stitching the front side of the thread inserting cloth with a stitching thread being 0.1-0.3 cm away from the bag opening by a stitching type;

s12, fixing the lower side of the bag opening, and sewing the end b of the bag cloth to the lower side inlaid wire cloth;

s13, hemming and ironing the lower side of the welt cloth according to a seam of 1-1.2cm, aligning the upper side of the welt with the upper side of the end a of the bag cloth, and stitching the lower side of the welt cloth on the bag cloth;

s14, folding the bag cloth in half, aligning the a end of the bag cloth with the upper end of the upper inserting line cloth, pulling out and leveling triangles at two ends of the bag mouth, and stitching and fixing the triangles and the bag mouth from the end point of the bag mouth along the net line of the bag mouth by 0.1-0.2 cm;

s15, sewing the bag cloth on the two sides.

Preferably, the cutting and sewing method of the single-inlaid-line dug-bag for the jacket comprises the following steps: the step S1 is a one-piece wire-embedding cloth.

Preferably, the cutting and sewing method of the single-inlaid-line dug-bag for the jacket comprises the following steps: and step S3, the size of the adhesive lining is respectively added by 1-2 cm on the basis of the length and width of the bag opening.

Preferably, the cutting and sewing method of the single-inlaid-line dug-bag for the jacket comprises the following steps: the step S7 specifically includes: stitching the upper side of the pocket mouth by stitching, stitching the upper side of the pocket mouth by stitching from a point a at the left end of the pocket mouth, stitching 2-3 needles, fixing the upper side of the pocket mouth by back stitching, stitching along the drawn pocket mouth, stitching a point b at the right end of the pocket mouth by the back stitching in the same way, stitching the lower side by the same method, keeping the upper stitching parallel to the lower stitching, and respectively stitching an a point a at the upper side of the left end, a point c at the lower side of the left end, a point c at the right end and a point d at the right end on a vertical line.

Preferably, the cutting and sewing method of the single-inlaid-line dug-bag for the jacket comprises the following steps: and in the step S9, the inlaid wire cloth is cut into 2 pieces along the bag opening line of the bag opening fabric and the inlaid wire cloth, the bag opening fabric is cut along the bag opening line to a position 1-1.2cm away from each of four end points of the bag opening, and the two ends of the bag opening fabric are cut into a triangular shape.

The invention has the advantages that: the cutting and sewing method of the single-inserting-line pocket digging for the jacket simplifies the working procedures, reduces the requirements on the process level of a garment process operator, improves the process quality of a pocket opening, ensures the smooth and attractive pocket shape and the guaranteed quality, and can improve the production efficiency of enterprises and the overall quality of finished garments when being used for enterprise production, thereby improving the economic benefit of the enterprises.

Drawings

Fig. 1 is a schematic structural view of the open pocket fabric of the present invention.

FIG. 2 is a schematic structural view of the back side lining of the open pocket fabric of the present invention.

FIG. 3 is a schematic structural view of an auxiliary line of the opening of the bag fabric of the present invention.

FIG. 4 is a schematic view of the structure of the wire-inlaid cloth liner and the pocket bit line determination of the present invention.

Fig. 5 is a schematic structural view of an ironing hem of the welting fabric of the invention.

FIG. 6 is a schematic structural view of the alignment of the open pocket fabric and the rule inserting fabric.

FIG. 7 is a schematic structural view of stitching on the reverse side of the open pocket fabric.

FIG. 8 is a schematic diagram of the positioning structure of the shaped cardboard strip of the present invention.

Fig. 9 is a schematic structural view of a pocket of a custom-made cardboard strip ironing machine of the present invention.

Fig. 10 is a structural schematic view of the pocket opening scissors of the invention.

Fig. 11 is a schematic structural view of the reverse side molding of the bag opening of the invention.

Fig. 12 is a schematic structural view of the front molding of the bag mouth of the invention.

FIG. 13 is a schematic structural view of a seat stitch according to the present invention.

Fig. 14 is a structural schematic diagram of a lower pocket fixing and sewing line of the present invention.

FIG. 15 is a schematic view of the structure of the present invention for fastening the seam-stitched bag to the mouth of the bag.

Fig. 16 is a schematic structural view of the fixing triangle and the bag mouth of the invention.

FIG. 17 is a schematic view of the structure of the present invention for processing the raw edge of the pocket fabric.

FIG. 18 is a diagram of a single rule bag of the present invention.

Detailed Description

The invention is further illustrated by the following examples and figures.

Examples

A cutting and sewing method of a single-inserting-line dug bag for a jacket is disclosed, wherein: the method comprises the following steps:

s1, preparing a bag opening fabric, 1 piece of inlaid wire cloth, 1 piece of edge sticking cloth, 1 piece of bag cloth and 1 piece of shaping paperboard strip;

s2, positioning a bag opening position by the bag opening fabric, wherein the length of a bag opening is 12cm, the width of the bag opening is 1cm, and referring to fig. 1, the dimension of the inlaid wire cloth is 16cm in length and 9cm in width; the size of the edge pasting cloth is 16cm in length and 7.5cm in width; the width of the bag cloth is 16cm, and the length is determined according to the requirements of functions and styles; the length of the shaped paperboard strip is 20cm, and the width of the shaped paperboard strip is 2 cm;

s3, a reverse side adhesive lining at a bag opening position of the bag opening fabric is shown in a figure 2, the size of the adhesive lining is added by 1cm on the basis of the length and the width of a bag opening, after the adhesive lining is finished, the front side of the fabric is drawn out of the bag opening position by using a drawing capable of being eliminated, a bag opening line is drawn, after the bag opening position is set, two sides of the bag opening line of the bag opening are extended by 2-3 cm respectively to be used as bag opening auxiliary lines of the bag opening fabric, and the figure 3 is shown;

s4, adhering linings on the back side of the inlaid thread cloth, drawing bag opening lines with a length and a width capable of being eliminated at a position 2cm away from the upper end of the front side of the inlaid thread cloth, drawing bag opening lines on the inlaid thread cloth, properly extending the lengths and the widths of the bag openings by 2-3 cm, using the bag opening lines as inlaid thread cloth bag opening auxiliary lines and aligning the bag opening auxiliary lines with the bag fabric auxiliary lines, and showing a figure 4.

S5, ironing the cloth at one transverse edge of the welting cloth along the cloth edge by 1cm until the back surface of the fabric is ready for use, and referring to a figure 5;

s6, placing the bag opening auxiliary line of the bag opening fabric and the auxiliary line of the bag inserting opening completely in a superposed manner to prepare for sewing, wherein the front side of the bag opening fabric faces upwards, the front side of the thread inserting cloth faces downwards, and the front sides of the bag opening fabric and the thread inserting cloth face oppositely, and the bag opening auxiliary line of the bag opening fabric and the auxiliary line of the bag inserting cloth bag opening are completely superposed and placed to prepare for sewing, as shown in figure 6;

s7, stitching a stitching thread on the pocket mouth, aligning a sewing machine needle to a point a at the upper left end of the pocket mouth, manually stitching a rotating wheel of a flat sewing machine, stitching the machine needle, stitching the upper side of the pocket mouth to be stitched, stitching 2-3 needles, then fixing the reverse needle to prevent the stitching thread from falling off, stitching along the drawn pocket mouth thread to straighten the stitching thread, stitching the upper end and the right end of the pocket mouth to be fixed by the reverse needle in the same way as the b end, see figure 6, stitching the lower stitching thread cd in the same way to enable a stitching line ab to be parallel to a stitching line segment cd, wherein a, c, b and d are respectively on the reverse side of a vertical line, see figure 6, and the stitching shape of the pocket opening fabric is shown in figure 7;

s8, after the upper and lower seam lines of the pocket are sewn, shaping and ironing the pocket by using a prepared shaping paperboard strip, aligning one side of the upper side of the shaping paperboard strip with the upper seam line of the inlaid wire cloth, turning over the shaping paperboard strip wrapped by the inlaid wire cloth upwards, ironing by using an iron, wherein the shaping paperboard strip cannot move at the moment so as to avoid influencing the appearance and the shape of the pocket, as shown in figure 9.

S9, after the pocket mouth is ironed, cutting along a cutting line, breaking open the pocket fabric and the thread inserting cloth, cutting the thread inserting cloth along a first pocket opening line 9-1 and a second pocket opening line 9-2 in a graph 10 to enable the thread inserting cloth to be cut into an upper part and a lower part, cutting the pocket fabric along the first pocket opening line in the graph 10 to be stopped at positions 1cm away from four end points of the pocket mouth, then cutting along a stitch of a third line 9-3 in the graph 10 to be stopped at positions 0.1cm away from the four end points, and not cutting the upper and lower stitched lines to prevent the front two ends of the pocket mouth from forming stubbles, and cutting the two ends of the pocket mouth of the fabric into a triangular shape;

s10, turning the upper and lower parts of the inlaid wire cloth to the reverse side of the pocket-opening fabric through the pocket-opening line, finishing the inlaid wire cloth to be flat on the reverse side, ironing and shaping the pocket mouth on the front side according to the set specification, and referring to the drawings of FIG. 11 and FIG. 12.

S11, after the pocket mouth is opened, in order to prevent the phenomenon of stopping the mouth from appearing at the position of the upper side of the pocket mouth with the sewing line, the pocket opening sewing head with the height of 0.5cm on the upper side of the pocket mouth is inverted to one side of the thread embedding cloth, and the sewing is carried out by using a sitting sewing type with the distance of 0.1cm from the upper side of the pocket mouth on the front side of the thread embedding cloth, as shown in a figure 13.

S12, fixing the bag opening, editing a seam with the seam length of 0.5cm at the lower side of the bag opening, splitting and ironing, editing the seam with the seam length of 0.5cm at the lower side of the bag opening and the embedded thread cloth by 0.1cm away from the lower side of the bag opening, sewing together, as shown in figure 14, ironing the end a of the bag cloth according to the folded edge of 1-1.2cm, and sewing the end a of the bag cloth to the embedded thread cloth at the lower side by using a buckling and pressing sewing process, as shown in figure 15;

s13, folding and ironing the lower side of the welt cloth according to a 1cm seam, aligning the upper side of the welt with the upper side of the end b of the bag cloth, and stitching the lower side of the welt cloth on the bag cloth by a buckling and stitching type, as shown in figure 16;

s14, folding the bag cloth in half, aligning the upper edge of the end b of the bag cloth with the upper end of the upper thread-inserting cloth, pulling out and leveling triangles at two ends of the bag mouth, stitching and fixing the triangles and the bag mouth from the end point c of the bag mouth along 0.1cm outside the net thread of the bag mouth, stitching a line of a point c → a point a → a point b → a point d, and fixing by back stitching at the three corners, as shown in figure 17;

s15, sewing the bag cloth at the two sides, wherein the rough edges of the bag cloth can be subjected to edge locking or edge covering process treatment according to the clothes process quality requirements, as shown in figure 18.

The cutting and sewing method of the single-inserting-line dug bag for the jacket, disclosed by the invention, is characterized in that a piece of inserting-line cloth, edge-attaching cloth and bag cloth are drawn according to the size of a bag opening required by a process, and a shaping paperboard strip is prepared; cutting the parts on the cloth material and the pocket fabric of the clothes according to the specification requirements of the parts; adhering non-woven linings on the back surfaces of the bag opening fabric and the inserting line cloth, and drawing bag opening positioning lines, cutting lines and alignment reference auxiliary lines on the front surface of the bag opening fabric and the back surface of the inserting line cloth; the thread embedding cloth and the pocket opening fabric of the garment are placed in a positive-phase opposite mode, upper and lower pocket opening threads are stitched according to pocket opening positioning threads, the left and right widths of the upper and lower edit threads are consistent, the two edit threads are guaranteed to be parallel to each other, and the starting and stopping positions of the left and right end points of the upper and lower edit threads are consistent; aligning the upper end of the sizing paperboard strip with the upper side of the pocket opening by using a sewing line, turning up the inlaid wire cloth to wrap the pocket plate strip, ironing and sizing the inlaid wire cloth to form a single inlaid wire pocket opening; cutting the bag opening fabric and the inserting line cloth along the cutting line at the same time, paying attention to the fact that the left end and the right end of the inserting line cloth are cut thoroughly, cutting the bag opening fabric to positions 1cm away from the upper end, the lower end, the left end and the right end of the bag opening fabric, stopping cutting the bag opening fabric, and then cutting the bag opening fabric to positions 0.1cm away from the four ends, wherein the four ends are not required to be cut; turning the thread-inserting cloth to the back side of the garment pocket-opening fabric through the cut open cut thread, and finishing, shaping and ironing the pocket opening on the front side of the garment fabric; sewing the end a of the pocket cloth and the lower end of the lower side inlaid wire cloth in a buckling and pressing seam type, aligning the upper end of the welt cloth with the upper side of the end b of the pocket cloth, stitching the lower end of the welt cloth on the pocket cloth in the buckling and pressing seam type, and stitching the upper ends of the pocket cloth and the welt cloth and the upper end of the inlaid wire cloth according to a stitching of 1 cm; sealing triangle at two ends of the bag opening, and sewing two sides of the bag opening cloth.

The cutting and sewing method of the single-inserting-line pocket digging for the jacket simplifies the working procedures, reduces the requirements on the process level of a garment process operator, improves the process quality of a pocket opening, ensures the smooth and attractive pocket shape and the guaranteed quality, and can improve the production efficiency of enterprises and the overall quality of finished garments when being used for enterprise production, thereby improving the economic benefit of the enterprises.

Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.