CN113334768B - Workpiece typesetting method for three-dimensional photocuring 3D printing - Google Patents
Workpiece typesetting method for three-dimensional photocuring 3D printing Download PDFInfo
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- CN113334768B CN113334768B CN202110587973.XA CN202110587973A CN113334768B CN 113334768 B CN113334768 B CN 113334768B CN 202110587973 A CN202110587973 A CN 202110587973A CN 113334768 B CN113334768 B CN 113334768B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
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Abstract
The invention discloses a workpiece typesetting method for three-dimensional photocuring 3D printing, and relates to the technical field of 3D printing. The invention comprises the following steps: (1) analyzing the characteristics of a workpiece to be processed; (2) screening and sorting workpieces to be processed, and separating time-sensitive workpieces and time-insensitive workpieces; (3) typesetting a first row of time-sensitive workpieces; (4) typesetting a second row of time-sensitive workpieces; (5) typesetting the residual time-sensitive workpieces; (6) and the typesetting time is insensitive. According to the invention, time-sensitive and insensitive workpieces are distinguished, the time-sensitive workpieces are intelligently placed on the printing plate, and are rotated and arranged according to the size, height and angle of each workpiece, so that the accumulated distance of the scraper in the back-and-forth movement of each layer is reduced, and meanwhile, the scraper is convenient to shovel and take the workpieces.
Description
Technical Field
The invention belongs to the technical field of 3D printing, and particularly relates to a workpiece typesetting method for three-dimensional photocuring 3D printing.
Background
The three-dimensional photocuring 3D printing technology, one of the rapid prototyping technologies, is a technology for constructing an object by using an adhesive material such as powdered metal or plastic and the like in a layer-by-layer printing manner on the basis of a digital model file, and has been applied in a plurality of fields.
And (3) performing stereo photocuring 3D printing, wherein each layer is printed, and a workpiece is subjected to blade coating once or for many times by using a scraper. The pendulum part typesetting of the workpiece has great influence on the use time of 3D printing, and simultaneously, the convenience of taking the workpiece is also influenced. In the unchangeable condition of work piece height, how rationally put the work piece, let the motion distance on every layer of scraper add up the minimum, to reducing 3D printing time, promote printing efficiency, it is especially important. At present, the plate arrangement for 3D printing is basically performed by sorting according to size and then manually adjusting, when a plurality of workpieces exist, the typesetting speed is very slow, and if the adjustment is unreasonable, the printing time is long, and the working efficiency is low.
Disclosure of Invention
The invention aims to provide a workpiece typesetting method for three-dimensional photocuring 3D printing, which is characterized in that time-sensitive and insensitive workpieces are distinguished, the time-sensitive workpieces are intelligently placed on a printing plate, and are rotated and arranged according to the size, the height and the angle of each workpiece, so that the accumulated distance of back-and-forth movement of a scraper on each layer is reduced, and the problems of low manual adjustment efficiency and long printing time of the conventional typesetting are solved.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a workpiece typesetting method for three-dimensional photocuring 3D printing, which comprises the following steps:
(1) analyzing the characteristics of the workpiece to be processed: importing a workpiece to be processed into a system, and analyzing characteristic information of the workpiece;
(2) screening and sequencing workpieces to be processed: screening out small workpieces insensitive to the processing time; sequencing the rest time-sensitive workpieces according to the sequence of the time-sensitive workpieces in the Z-axis direction;
(3) typesetting a first row of time-sensitive workpieces: firstly, selecting a certain number of workpieces to typeset a first row of workpieces according to the width of a 3D printer screen along the X-axis direction and the height sequence of time-sensitive workpieces; according to the height of the workpiece in the Z-axis direction and the bottom area of the workpiece on an X-Y plane, the workpieces are sequentially arranged in a first row from high to bottom and from large to small in bottom area;
the first workpiece with the largest first bottom area in the first row is arranged in the direction that the long edge is parallel to the X axis; if the long side of the other workpieces is smaller than or equal to the short side of the first workpiece, the other workpieces are arranged in the direction that the short side is parallel to the X axis, and if the long side is larger than the short side of the first workpiece, the other workpieces are arranged in the direction that the long side is parallel to the X axis; in the Y-axis direction, the projection of the highest point of the workpiece in the Z-axis direction on the bottom surface, and the bottom edge closer to the projection distance is closer to the negative half shaft of the Y-axis than the bottom edge farther from the projection distance; the bottom edges of the first row of placed workpieces, which are close to the Y-axis negative half shaft, are on the same straight line to form a first lower boundary line;
in the X-Y plane, in the X-axis direction, an extension line is taken by the side of the first workpiece close to the positive half shaft of the Y axis as a first upper boundary line of the first row, and the sides of the rest placed workpieces in the first row close to the positive half shaft of the Y axis and the first upper boundary line form a first gap; searching the workpieces which are not placed according to the sequence from high to low in the Z-axis direction, and recursively placing the workpieces into the first gap according to the base area which is less than or equal to the first gap standard until any one workpiece which is not placed cannot be placed in the first gap; at this time, the first row typesetting is finished;
the bottom edge, close to the projection of the highest point of the workpiece on the bottom surface, is closer to the negative half shaft of the Y axis in the first gap;
(4) typesetting a second row of time-sensitive workpieces: selecting a certain number of workpieces to perform typesetting on the workpieces in the second row according to the width of the 3D printer screen along the X-axis direction and the high-low sequence of the un-typesetted workpieces; according to the height of the workpiece in the Z-axis direction and the bottom area of the workpiece on an X-Y plane, the workpieces are sequentially arranged in a second row from high to bottom and from large to small in bottom area;
the second row of the second workpieces with the largest first base areas are arranged in the direction that the long sides are parallel to the X axis; if the long side of the other workpieces is smaller than or equal to the short side of the second workpiece, the other workpieces are arranged in the direction that the short side is parallel to the X axis, and if the long side is larger than the short side of the second workpiece, the other workpieces are arranged in the direction that the long side is parallel to the X axis; in the Y-axis direction, the projection of the highest point of the workpiece in the Z-axis direction on the bottom surface, and the bottom edge closer to the projection distance is closer to the positive half shaft of the Y-axis than the bottom edge farther from the projection distance; the bottom edges of the second row of placed workpieces, which are close to the positive half shaft of the Y axis, are on the same straight line to form a second upper boundary line;
in the X-Y plane, a second gap is formed between the side, close to the Y-axis positive half shaft, of the second row of placed workpieces and the first lower boundary line; searching the workpieces which are not placed according to the sequence from high to low in the Z-axis direction, and recursively placing the workpieces into the second gap according to the standard that the bottom area is less than or equal to the gap until any workpiece which is not placed cannot be placed in the second gap; at this time, the second row typesetting is finished;
the bottom edge, close to the projection of the highest point of the workpiece on the bottom surface, is closer to the positive half shaft of the Y axis in the second gap;
(5) typesetting the remaining time-sensitive workpieces: each subsequent row of typesetting is carried out according to a second row of workpiece typesetting method until all time-sensitive workpieces are placed;
(6) typesetting time insensitive work piece: and after all the time-insensitive workpieces are placed, arranging the time-insensitive workpieces at the middle position of the next row.
Further, the sum of the width of the certain number of workpieces in the X-axis direction and the gap is less than or equal to the width of the screen plate in the X-axis direction.
Furthermore, the sorting of each row is based on the principle of high priority in the Z-axis direction and then based on the principle of priority of the bottom area on the X-Y plane; that is, the layout with high priority is laid out, and the layout with large floor area is laid out with the same height.
Further, the time-insensitive workpiece is a workpiece with a low height and a small volume relative to the time-sensitive workpiece.
Further, the typesetting work pieces exceed the layout too much, and a prompt can be sent.
The invention has the following beneficial effects:
1. according to the invention, time-sensitive and insensitive workpieces are distinguished, the time-sensitive workpieces are intelligently placed on the printing plate, and are rotated and arranged according to the size, height and angle of each workpiece, so that the accumulated distance of the scraper moving back and forth on each layer is reduced, and the typesetting and printing efficiency is improved.
2. After time sensitive and insensitive workpieces are distinguished, the workpieces are convenient to shovel and take.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic flow chart of a workpiece typesetting method for three-dimensional photocuring 3D printing according to the invention;
FIG. 2 is a plan view of the invention after automatic typesetting;
FIG. 3 is a layout chart after the automatic typesetting of the present invention;
FIG. 4 is a side view of the layout after automatic typesetting according to the present invention;
FIG. 5 is a right view of the layout after automatic typesetting according to the invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1-time sensitive workpiece, 2-time insensitive workpiece, and 3-screen.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "X-axis", "Y-axis", "Z-axis", "bottom", "up", "down", and the like, indicate an orientation or positional relationship for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention.
Referring to fig. 1, the present invention is a workpiece typesetting method for three-dimensional photocuring 3D printing, including the following steps:
(1) analyzing the characteristics of the workpiece to be processed: and importing the workpiece to be processed into a system, and analyzing the characteristic information of the workpiece.
(2) Screening and sequencing workpieces to be processed: screening out small workpieces insensitive to the processing time; and sequencing the left time-sensitive workpieces in the sequence of high and low in the Z-axis direction.
(3) Typesetting a first row of time-sensitive workpieces 1: firstly, selecting a certain number of workpieces to perform typesetting of a first row of workpieces according to the width of a 3D printer screen 3 along the X-axis direction and the height sequence of the time-sensitive workpieces 1; the sum of the widths of the workpieces in the X-axis direction is less than or equal to the width of the screen plate 3 in the X-axis direction. According to the height of the workpiece in the Z-axis direction and the bottom area of the workpiece on the X-Y plane, the workpieces are sequentially arranged in the first row from high to bottom and from large to small in bottom area, the workpieces are typeset preferentially when the height is high, and the workpieces are typeset preferentially when the height is the same.
The first workpiece with the largest first bottom area in the first row is arranged in the direction that the long edge is parallel to the X axis; if the long side of the other workpieces is smaller than or equal to the short side of the first workpiece, the other workpieces are arranged in the direction that the short side is parallel to the X axis, and if the long side is larger than the short side of the first workpiece, the other workpieces are arranged in the direction that the long side is parallel to the X axis; in the Y-axis direction, the projection of the highest point of the workpiece in the Z-axis direction on the bottom surface, and the bottom edge closer to the projection distance is closer to the negative half shaft of the Y-axis than the bottom edge farther from the projection distance; and the bottom edges of the first row of placed workpieces, which are close to the negative half shaft of the Y axis, are on the same straight line to form a first lower boundary line.
In the X-Y plane, in the X-axis direction, an extension line is taken by the side of the first workpiece close to the positive half shaft of the Y axis as a first upper boundary line of the first row, and the sides of the rest placed workpieces in the first row close to the positive half shaft of the Y axis and the first upper boundary line form a first gap; searching the workpieces which are not placed according to the sequence from high to low in the Z-axis direction, and recursively placing the workpieces into the first gap according to the base area which is less than or equal to the first gap standard until any one workpiece which is not placed cannot be placed in the first gap; at this time, the first line layout is completed.
The bottom edge, close to the projection of the highest point of the workpiece on the bottom surface, in the first gap is closer to the negative half shaft of the Y axis.
(4) Typesetting a second row time sensitive workpiece 1: selecting a certain number of workpieces to perform typesetting on the workpieces in the second row according to the width of the 3D printer screen 3 along the X-axis direction and the high-low sequence of the un-typesetted workpieces; the sum of the widths of the workpieces in the X-axis direction is less than or equal to the width of the screen plate 3 in the X-axis direction. According to the height of the workpiece in the Z-axis direction and the bottom area of the workpiece on the X-Y plane, the workpieces are sequentially arranged in the second row from high to bottom and from large to small in bottom area, typesetting is preferentially carried out when the height is high, and typesetting is preferentially carried out when the height is the same.
The second row of the second workpieces with the largest first base areas are arranged in the direction that the long sides are parallel to the X axis; if the long side of the other workpieces is smaller than or equal to the short side of the second workpiece, the other workpieces are arranged in the direction that the short side is parallel to the X axis, and if the long side is larger than the short side of the second workpiece, the other workpieces are arranged in the direction that the long side is parallel to the X axis; in the Y-axis direction, the projection of the highest point of the workpiece in the Z-axis direction on the bottom surface is that the bottom edge closer to the projection distance is closer to the positive half shaft of the Y-axis than the bottom edge farther from the projection distance. The arrangement can ensure that the highest point of the workpiece is arranged on the screen plate 3 in the shortest distance and the scraper runs in the shortest distance. The bottom edges of the second row of placed workpieces, which are close to the positive half shaft of the Y axis, are on the same straight line to form a second upper boundary line.
In the X-Y plane, a second gap is formed between the side, close to the Y-axis positive half shaft, of the second row of placed workpieces and the first lower boundary line; searching the workpieces which are not placed according to the sequence from high to low in the Z-axis direction, and recursively placing the workpieces into the second gap according to the standard that the bottom area is less than or equal to the gap until any workpiece which is not placed cannot be placed in the second gap; at this time, the second line layout is completed.
The bottom edge, close to the projection of the highest point of the workpiece on the bottom surface, in the second gap is closer to the positive half shaft of the Y axis.
(5) Typesetting the remaining time-sensitive workpieces 1: and (5) typesetting in each subsequent row according to the workpiece typesetting method in the second row until the placement of all the time-sensitive workpieces 1 is completed. When the typesetting work piece has multiple publishing faces, a prompt can be sent.
(6) Typesetting time insensitive workpiece 2: and after all the time-insensitive workpieces 1 are placed, arranging the time-insensitive workpieces 2 at the middle position of the next row.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. A workpiece typesetting method for three-dimensional photocuring 3D printing is characterized by comprising the following steps:
(1) analyzing the characteristics of the workpiece to be processed: importing a workpiece to be processed into a system, and analyzing characteristic information of the workpiece;
(2) screening and sequencing workpieces to be processed: screening out small workpieces insensitive to the processing time; sequencing the rest time-sensitive workpieces according to the sequence of the time-sensitive workpieces in the Z-axis direction;
(3) typesetting a first row of time-sensitive workpieces: firstly, selecting a certain number of workpieces to typeset a first row of workpieces according to the width of a 3D printer screen along the X-axis direction and the height sequence of time-sensitive workpieces; according to the height of the workpiece in the Z-axis direction and the bottom area of the workpiece on an X-Y plane, the workpieces are sequentially arranged in a first row from high to low and from large to small;
the first workpiece with the largest first bottom area in the first row is arranged in the direction that the long edge is parallel to the X axis; if the long side of the other workpieces is smaller than or equal to the short side of the first workpiece, the other workpieces are arranged in the direction that the short side is parallel to the X axis, and if the long side is larger than the short side of the first workpiece, the other workpieces are arranged in the direction that the long side is parallel to the X axis; in the Y-axis direction, the projection of the highest point of the workpiece in the Z-axis direction on the bottom surface, and the bottom edge closer to the projection distance is closer to the negative half shaft of the Y-axis than the bottom edge farther from the projection distance; the bottom edges of the first row of placed workpieces, which are close to the Y-axis negative half shaft, are on the same straight line to form a first lower boundary line;
in the X-Y plane, in the X-axis direction, an extension line is taken by the side of the first workpiece close to the positive half shaft of the Y axis as a first upper boundary line of the first row, and the sides of the rest placed workpieces in the first row close to the positive half shaft of the Y axis and the first upper boundary line form a first gap; searching the workpieces which are not placed according to the sequence from high to low in the Z-axis direction, and recursively placing the workpieces into the first gap according to the base area which is less than or equal to the first gap standard until any one workpiece which is not placed cannot be placed in the first gap; at this time, the first row typesetting is finished;
the bottom edge, close to the projection of the highest point of the workpiece on the bottom surface, is closer to the negative half shaft of the Y axis in the first gap;
(4) typesetting a second row of time-sensitive workpieces: selecting a certain number of workpieces to perform typesetting on the workpieces in the second row according to the width of the 3D printer screen along the X-axis direction and the high-low sequence of the un-typesetted workpieces; according to the height of the workpiece in the Z-axis direction and the bottom area of the workpiece on an X-Y plane, the workpieces are sequentially arranged in a second row from high to low and from large to small;
the second row of the second workpieces with the largest first base areas are arranged in the direction that the long sides are parallel to the X axis; if the long side of the other workpieces is smaller than or equal to the short side of the second workpiece, the other workpieces are arranged in the direction that the short side is parallel to the X axis, and if the long side is larger than the short side of the second workpiece, the other workpieces are arranged in the direction that the long side is parallel to the X axis; in the Y-axis direction, the projection of the highest point of the workpiece in the Z-axis direction on the bottom surface, and the bottom edge closer to the projection distance is closer to the positive half shaft of the Y-axis than the bottom edge farther from the projection distance; the bottom edges of the second row of placed workpieces, which are close to the positive half shaft of the Y axis, are on the same straight line to form a second upper boundary line;
in the X-Y plane, a second gap is formed between the side, close to the Y-axis positive half shaft, of the second row of placed workpieces and the first lower boundary line; searching the workpieces which are not placed according to the sequence from high to low in the Z-axis direction, and recursively placing the workpieces into the second gap according to the standard that the bottom area is less than or equal to the gap until any workpiece which is not placed cannot be placed in the second gap; at this time, the second row typesetting is finished;
the bottom edge, close to the projection of the highest point of the workpiece on the bottom surface, is closer to the positive half shaft of the Y axis in the second gap;
(5) typesetting the remaining time-sensitive workpieces: each subsequent row of typesetting is carried out according to a second row of workpiece typesetting method until all time-sensitive workpieces are placed;
(6) typesetting time insensitive work piece: and after all the time-insensitive workpieces are placed, arranging the time-insensitive workpieces at the middle position of the next row.
2. The workpiece typesetting method for three-dimensional light-cured 3D printing according to claim 1, wherein the sum of the width of the certain number of workpieces in the X-axis direction and the gap width is less than or equal to the width of the screen plate in the X-axis direction.
3. The method for typesetting a workpiece for three-dimensional (3D) printing according to claim 1, wherein each row is sorted according to the principle of priority of height in the Z-axis direction and then according to the principle of priority of bottom area on the X-Y plane; that is, the layout with high priority is laid out, and the layout with large floor area is laid out with the same height.
4. The method for typesetting a workpiece for three-dimensional photo-cured 3D printing according to claim 1, wherein the time-insensitive workpiece is a workpiece with a small height and a small volume relative to the time-sensitive workpiece.
5. The method for typesetting a workpiece for three-dimensional photo-curing 3D printing according to claim 1, wherein the typesetting workpiece can give out a prompt when the typesetting workpiece exceeds the layout.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106156406A (en) * | 2016-06-23 | 2016-11-23 | 佛山市晗宇科技有限公司 | A kind of method and system for 3D printer model Automatic Typesetting |
| CN108215173A (en) * | 2016-12-15 | 2018-06-29 | 上海普利生机电科技有限公司 | Light-cured type 3 D-printing equipment, the method and system that can automatically continuously print |
| CN111791496A (en) * | 2020-06-22 | 2020-10-20 | 共享智能铸造产业创新中心有限公司 | Layout method based on 3D printing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2011100978A1 (en) * | 2010-02-19 | 2011-08-25 | 3Shape A/S | Computer-implemented method for three-dimensional representation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106156406A (en) * | 2016-06-23 | 2016-11-23 | 佛山市晗宇科技有限公司 | A kind of method and system for 3D printer model Automatic Typesetting |
| CN108215173A (en) * | 2016-12-15 | 2018-06-29 | 上海普利生机电科技有限公司 | Light-cured type 3 D-printing equipment, the method and system that can automatically continuously print |
| CN111791496A (en) * | 2020-06-22 | 2020-10-20 | 共享智能铸造产业创新中心有限公司 | Layout method based on 3D printing |
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Address after: 515800 south side of Fuqian square, Wenguan Road, Chenghua street, Chenghai District, Shantou City, Guangdong Province Patentee after: SHANTOU KWORK SMART TECHNOLOGY CO.,LTD. Address before: 515800 6th floor, No. 12, Lane 4, pumeihu District, Guangyi street, Chenghai District, Shantou City, Guangdong Province Patentee before: SHANTOU KWORK SMART TECHNOLOGY CO.,LTD. |
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| CP02 | Change in the address of a patent holder |