TW201028295A - Multi-material thin-film rapid prototyping system and method - Google Patents

Abstract

The present invention provides a multi-material thin-film rapid prototyping system, including: a plurality of material-storage devices storing a plurality of thin-film materials; a material-feeding device; a cutting device; a gluing device; a pressing-board; a driving device, locating and control the position of the material-feeding device, the cutting device and the gluing device; and a computer system, controlling the action between the material-storage devices, the material-feeding device, the cutting device, the gluing device, the pressing-board and the driving device, and controlling the cutting device to cut a pattern on the thin-film material, building a solid model of a workpiece. Based on the present invention, further providing a multi-material thin-film rapid prototyping method, a process method in the same layer, a process sequence analyzing method of feeding material, a process method with different thickness of laminating materials and a support structure building method of a multi-material thin-film rapid prototyping.

Description

201028295 VI. Description of the invention: [Technical field to which the invention belongs] Buben has a variety of techniques for Rapid Prototyping (Rjp) in July, especially based on Laminated Object T = tu: ing, L0M. Thin-film rapid prototyping and methods for materials. [Prior Art] Rapid prototyping systems have been developed and accepted by the industry to date. This technology has the advantages of short working hours, high precision, and unrestricted processing path. It can quickly and accurately produce prototype objects, and is especially suitable for applications in the J design and manufacturing industry, with short life cycle and a small variety of products. 'Prototype products can be used for product design verification, functional testing and auxiliary mold development, so it can quickly assist the product development disk to reduce the risk of errors that may occur during mold opening, effectively shorten development time and reduce costs. Make the product more competitive. However, for the development of rapid prototyping technology in the new generation, Rp is no longer synonymous with rapid prototyping, but has a new term, called rapid production or rapid manufacturing. So how to get rid of the prototypes that were previously limited to making appearance references, and can quickly produce functional parts such as inserts, assemblies, and multi-Materials. Prototypes are an important research topic in current rapid prototyping technology. 7 The application of rapid prototyping is all-encompassing. At present, it is not only used in many industrial applications, but also extended to medicine, art, geographic information and humanities. For example, the most mature industrial prototypes and models used in today's applications are generally applied to the Concept Model for design verification. As for the physical model for functional evaluation, only a very small number are required due to the high strength and hardness required. The model is applicable. However, if the application of the concept prototype is used at the expensive price of the rapid prototyping machine, then its applicability is bound to be limited. Furthermore, the product life cycle of the 5ΐίΐ market is becoming shorter and shorter, and the business sector f f, rapid prototyping technology will time the product development process to improve competitiveness and market share. Therefore, in addition to providing accurate shape samples, rapid prototyping technology must be functional, so that rapid prototyping technology can be applied more widely. Please refer to the -w, rapid prototyping, when the initial design, must be completed by computer three for computer-aided design (3DCAD), traditionally using manual or mechanical means, according to the two-dimensional processing map,

Ingenuity H method 彡 H step design fixture or mold, the whole process is tempered by the human and material resources. If the prototype produced is wrong, the whole process is bound to come back. If rapid prototyping is used, the 3D rendering on 3D CAD is aligned with the 2D plane of the layer. The result of the intersection is a stack of two-dimensional geometric data, each of which is not a two-dimensional figure. Next, the computer takes out the bottommost geometric pattern, as the computer positioning control, transfers the energy source material to the working surface, and adds the material to the position indicated by the geometry ^; according to this procedure, the bottom end To the top, the raw materials are filled one by one and combined together, and the completed three-dimensional prototype can be taken out after completion. Theoretically = When a layer of two-dimensional sheets is thin, the stereoscopic prototype and the original stereo geometry will be exactly the same. The rapid prototyping technology can also be called Matedal Increase Manufacturing, or layer processing techniques such as丫饤Manufacturing Technology) ' or 自由 Free Freeform Fabrication, because its processing method is different from the traditional processing method, such as lathes, milling machines, grinding machines, planers, etc. The layers of material are added and stacked. In general, rapid prototyping can be divided into three categories according to the materials used, such as powder, liquid resin, and solid materials, each with its own special features and application fields. In the molding of solid materials, it is generally processed by using sheet material adhered to 201028295 (Gluing Sheets). From the processing principle, any material that can be made into sheets can be used in this way, but because of energy devices and waste stripping. And the limitations of factors such as workpiece positioning, most of the paper is currently used, more well-known manufacturers are the United States CUBIC's Laminated Object Manufacturing (LOM), Sakamoto KIRA's selective adhesion and hot pressing (Selective Additive And Hot Press, SAHP), currently Singapore KINRGY company also has a Zippy machine similar to LOM. Please refer to the second figure' for a flow chart of a conventional LOM process. Generally, the typical LOM uses paper as the raw material because the paper is made of wood. Therefore, the finished product of LOM is very similar to the wood product. l〇M belongs to a mixed processing of Additive Method and Subtractive Method. This is the biggest difference from other rp machines, which are mostly processed by feeding. The processing flow is as follows: STEP 1: The paper advances until it covers the entire workbench. STEP 2: The bed rises into contact with the paper and touches the limit switch of the z-axis to control a certain height. STEP 3: Then two actions are performed simultaneously. The software calculates the intersection of the STL file and a horizontal plane to find the contour. On the hard side, the heated roller is rolled to bond the paper. STEP 4: The optical lens focuses the laser light on the paper and cuts the paper into a quadrilateral frame to form a wall that divides the paper into the processing range and the edge of the continuous paper feed. STEP 5: The laser is cut according to the contour of the workpiece, and the cutting thickness is just the thickness of a piece of paper. STEP 6: Between the outline and the wall, the laser is cut into a cross-hatch (Crosshatch) to make the scrap easily peeled off. STEP 7: The bed is lowered to facilitate the advancement of the paper. Repeat stePsI~7 to the completion of the workpiece. STEP 8: Remove the entire laminated piece and carefully strip the waste. 6 201028295 Remove the prototype workpiece.

Regarding the lamellar lamination method, prototypes of different materials can be produced due to various materials, and therefore many researches on the Lom process materials have been proposed. Klosterman et al. used Tao Jing and ^ materials as research objects to make prototypes of different materials. Chi et al. proposed a Curved Layer LOM to produce metal prototypes from sheet metal materials, extending the range of LOM applications. Two methods are used in the production. The first is to use a laser to cut a copper-clad stainless steel sheet (a Copper Clad Stainless Steel), followed by a stainless steel crucible to position 'and fix it with a heavy object, and place it on a high a ( Brazing). This method has long been taken out of the waste, so there is no problem of decubing, but it is not applicable to the geometry of the barb. Because the shape of the barb cannot be supported, the problem of support still exists. The second method is similar to the current LOM. It is first bonded (B〇ndil^g) and then cut. The uppermost material is fixed by a clamp, and then Spot Weld is used for bonding. Finally, the laser is used for cutting. The top layer. The disadvantage of this method is that it not only affects the next layer when cutting, but also the waste J is difficult to remove. Obikawa'Bryden et al. and Lone Peak Engineering Inc also successively laminated the metal materials and fabricated the metal workpieces and molds by means of lamination and computer numerical control (CNC) tools for 2D contour cutting. These prior art techniques all employ high-strength materials for making functional components, but make the problem of scrapping more difficult. Therefore, Taiwan Patent Publication No. 438676, 438677, 464612, 590881 develops a rapid prototyping-layer forming method for the online material-drawing process, and proposes that the bridge construction method can remove most of the waste on the line and extract the metal workpiece. And the 胄-type online material lamination method developed by the step-by-step method, in conjunction with the proposed insert manufacturing rule, the insert material theory, any sheet material can be used in the sheet laminating speed rapid prototyping system, such as paper, plastic , metal, composite materials and ceramics, etc.: 7 201028295 j sheet layer method due to the limitations of the process, can only produce a single material prototype, the sheet laminate method and the current technology produced by the method of bonding after cutting The parts will be scrapped and stripped. The method of stacking the workpiece can be stripped in the work, but there is a problem of cumulative positioning error. Moreover, the use of a material having a relatively high strength such as gold: Ρΐί, etc., although it is possible to expand the application of the laminar lamination process, is limited by the difficulty of scrapping. 3. Conventional LOMs can only use sheet materials of the same thickness. The invention proposes a multi-material sheet laminate (Multi_Materials #, >*i rapid prototyping system and method, which can be applied to various material functions = 祓 兀 要 要 此 此 薄片 薄片 薄片 薄片 薄片 薄片 此 此 此 此 此 此 此 此 此The production of the parts can also be based on the step-like precision error required by the workpiece. For the thin film materials of different thicknesses, the thin layer of the appropriate thickness is used for lamination, which reduces the number of laminating layers and improves the processing of the process. The multi-material sheet laminate rapid prototyping system and method are described in detail through different embodiments. SUMMARY OF THE INVENTION The object of the present invention is to provide a multi-material sheet laminate rapid prototyping material refers to a 'multi-phase' thin layer rapid prototyping system. And the method is to change the needle. The laminar lamination process can only be processed by a single material and the work is done to overcome the limitations and shortcomings of the original process. In addition to the layering, the stereo model is specially cut. Processing and single ^ '寅 外 outside' also use the first sticky, then cut and then double-cutting method 201028295 to achieve the lamination of a variety of sheet materials A second object of the present invention is to provide a method and a line for the evening material, which is provided when the material of the transfer layer is interfering with the object to produce a _^= seed material in the same layer processing, and the third object of the present invention provides a variable The method and system can be determined based on the object rim; =^ The problem of difficulty in removing the waste. ', s knowing that the technology is stripped to achieve one of the above purposes, the present invention includes a simple: 2 = type system' contains: a plurality of materials Storage; = material storage device to store a sheet of material;: the sheet material of the device base material storage device is transferred to the second 'segment of the sheet material; - the cutting device, two or two units are stacked above the Pressing and stacking 5 sets; setting; standing: mounting, cutting device, and the above "feeding device, ϊ = strike the material storage device, between the transfer device, the gluing device, the press plate And the pass: the second-class sheet material is super-shaped. The sheet material of the 〃 word stack σ is constructed - the three-dimensional mold layer of the workpiece is the original speed, and the human Ming Fu provides a multi-material sheet texture, and in each analysis - the three-dimensional model a pattern at the cut layer; the door 彳 heart m boundary 疋 to the 〆 level object, The hierarchical object has the analysis layer, the corresponding layer object corresponding to the specified sheet material, the (3) sequence, and the t5 material in sequence; (4) the feeding according to the single layer; (5) the Snapshot ♦ After the cutting process and the gluing treatment of the material, the cutting process and the gluing process are processed to construct the laminated sheet material of the three-dimensional model of 9 201028295. Li Yuwei = one of the above purposes, the present invention further provides a layer processing layer of the same layer Rapid prototyping system, the multi-material thin; (2) material storage device sheet material transferred to - work f; ΐ !; = sheet material surface two-plate 定位 positioning sheet material, and - transport device for ίΐ ίί cutting device and The gluing device; the material plus·· computer system is used to control the operation between the f-press plate and the transmission device; i is in the 疒, the slice layer of the model is processed, ^ less::: the cutting layer after the division of labor At least the second pass of the processing to be completed = and the second cut, to cut this - pass plus one of the above-mentioned purposes of the same layer processing method, including the sheet of material t right and: at least - layer Define at least two layers (3) analysis of the layer of the layer ", the order of the material to be ordered, the riding of the first-axis sequence; (4), the pattern of the layer; (7) according to the feeding order of the layer # = (two) processing of the cutting - processing the Sin-secondary cut to cut the second pass processing, and the first cutting to form the pattern after cutting; and (6) constructing the three-dimensional molding by layer by layer Sheet material. 201028295 Thin sheet two t-in step-step provides - the layering treatment of a multi-body model, with square === analysis 1 piece ^ layer = with - pattern; (7) heart two two materials; (3) classification of the same layer Group of hierarchical objects; (?) ί sequential layer = material layer = = = piece processing - each material storage device storage π π r Β multiple material storage loading device f, successively The above-mentioned material storage device is sent to 1 _ material;;--cutting device for i cutting the r-face; - the plate-pressing material device, the cutting J-dimensional model of the turret sloping slanting degree is determined from (2) J The sheet material 'and controls the cutting device to construct the three-dimensional model on the sheet material of the thin moon = knife overlap. In order to achieve the above object, the method for processing a thin layer of a thick layer of the present invention comprises: (1) eight for a variable layer processing 'and at least one (layer) defined in each layer:: The model has - along with; (7) according to the contour of the three-dimensional model 201028295, layer by layer "synthesis and glue out the laminated solid material of the three-dimensional model. < Constructed to achieve one of the above purposes, the present invention three layers The structure construction system of the branch building is implemented in;; multi-material == two-dimensional multi-layer laminated layer rapid prototyping system = product; mouth: ! times, the material storage device of the sheet material two delivery port, a cutting device, Cutting the sheet material. - above the work, to press the laminated sheet material; 蠡 = work, for positioning the feeding device, the cutting device rim ^ reading structure (10), listening: set; a support structure of the three-dimensional model; and a supporting structure of the three-dimensional model of the feeding device, the cutting device, and the cutting process = the second branch structure material, The computer system controls who is in the order of feeding and control The cutting device layer-by-layer sheet ί is processed to construct a laminated thin film comprising the supporting structure to one of the above purposes. The present invention further provides a method for constructing a multi-material f-layered building structure, comprising: (1) analysis - a three-dimensional die ϊ analysis of a sliced plant comprising a three-dimensional model of the support structure and defining at least two hierarchical objects to the right layer, the layer ΐi having a pattern; (3) giving at least one level of the object corresponding to one as Support = structure of the support material, and at least one level of the object corresponding to one as a three-dimensional m thin # material; (4) analysis of the single-layer layer of the order of the feeding order; () the early layer of the feeding sequence, the order is carried out Cutting treatment of material 12 201028295 and gluing treatment; and (6) processing after cutting and gluing treatment layer by layer 'to construct a laminated sheet material containing the supporting structure. [Embodiment] "First Embodiment" According to the present invention The first embodiment of the present invention provides a multi-material sheet laminate rapid prototyping system and method. Referring to the third figure, the process flow of the multi-material sheet superposition rapid prototyping method according to the present invention is shown. Cheng Tu.

First, in step 1000, a plurality of material workpieces to be produced are drawn in a 3D model by a CAD software, and a three-dimensional grid file of the plurality of material workpieces is obtained. Then, in step 1100, the layering process is performed, and the three-dimensional models of the plurality of materials are separately sliced according to the thickness of the layer (the thickness of the layer is a layer of sheet material plus a layer of adhesive thickness). 2D outline files of various materials. If there are multiple sets of contours in the 2D contour file, then the layering process of step 1100 will disassemble it into a sliced object with only one set of contours (objects) per slice. Step 1200' computer calculates and superimposes various materials in the same layer. Step 13GG indicates that _ single layer fresh processing, weaving will be the same as adding a single object (contour) slice layer for Boolean operation: ΐ ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί The path of the processing of the object ^ the number 'follow-up description'). In the brain-braking brake μ*, before the start of the processing and feeding operation, the electric==force two is the first-pass processing in the single layer, and if so, the sequence is different. The processing of the material sheet will be monophonic? The control material storage device passes through, and the feeding device mechanism takes 1470 of the first pass in the early layer to indicate that the cage piece is good, the name/guide material is smashed to the working port, and the thick sheet is suitable for work.合13 13 201028295 Bonding 'and then proceed to step 1480' cutting device to make the sheet material chopped 'finally into step 1490, the gluing device sprays the part to be bonded; if not, the computer calculates the number according to the layer analysis After processing the processing order of the different material sheets, step 1410 controls the filament storage left to pass through a feeding device mechanism to send the second sheet of the desired material in the single layer to the table. Step 1420 shows that the cutting device does not pass through the cutting device. The first cutting operation is performed on the sheet material, and then the sheet material is sent to the table through a pressing plate for pressing and bonding, and then the process proceeds to step 1440, and the cutting device performs a second cutting operation on the sheet material. In 1450, the gluing device performs the gluing treatment on the portion to be bonded. In step 1500, the computer determines whether the various materials in the single layer are finished, that is, judges each of the single layers. Whether have switched completion times, if yes, proceeds to step 1600, determines whether further be completed every - processing of the shear layer, if 'proceeds to step 1700; if not, returns to step 13〇〇. - In step 1500, the computer determines whether the various materials in the single layer have been processed, that is, whether each pass in the single layer has been completed, and if not, returns to step 1400. - Repeating step 130 to step 1600 to confirm that each pass in each of the layers is completed, indicating that the process of the multilayer sheet has been completed, proceeding to step 1800 to obtain a workpiece semi-finished product that has not been stripped of the scrap. Step 1900 represents the scrapping operation of the finished workpiece, and finally the final multi-material 3D rapid prototyping product is obtained. According to this embodiment, the present invention provides a multi-material sheet laminate rapid prototyping method, comprising: (1) analyzing a slice processing of a three-dimensional model, and defining at least one level object in each layer, the hierarchical object having a picture , (2) giving each level of object corresponding to a specified sheet material; (3) analyzing the feeding order of the layered items of the single layer; (4) performing the cutting of each specified sheet material in sequence according to the feeding order of the single layer Treatment and gluing treatment; (5) After the cutting treatment and the gluing treatment are processed layer by layer, the 4-sheet material of the stereoscopic 14 201028295 model is constructed. According to this embodiment, the present invention further provides a multi-material thin layer-adding method, comprising: (1) analyzing a three-dimensional model and having two levels of objects, the level object having a picture (2) giving the parent-level object corresponding to the feeding order of the object on the fourth layer; (4) entering the first pattern of the first specified sheet material according to the order of Dakko; (5), the layer Feeding sequence, proceeding to the second: designation, slice-cutting, first-pass processing, pattern J, and cutting, to cut the pattern: the pattern to be completed; and the second line = after processing, Construct the superimposed thin track of the three-dimensional model: Next, please refer to the fourth picture, the total sheet material section. The three-dimensional schematic diagram of the prototype system, the material storage device 20 of the rapid stacking of the hair sheet, the j system is characterized by multi-class and thick specifications to classify the heart = the required sheet material according to the species, rationality and mode, the sheet material 2 = == Material isnm layer: c system 'contains: a plurality of materials, a feed 茫詈 30, a β-blocking device stores a thin sheet material transfer 2 a thin material cutting device of the working material storage device 20, for example, 4 to superimpose the sheet materials; a slice material; a gluing device: a knife = a device 5 〇 a 'used to cut the thin to attach to the thin film shown in the thin figure 4, 70, Qiao 4 Above the 2 2 =, 〇, set in the set 'for example: the second sheet material shown in the fourth figure; - the transfer skirt positioning the feeding device 3 〇, the configuration of the cm device 80, and - the computer system (in the figure ^7(4) and the gluing device; the feeding device, the cutting device, the cutting device, the control device, the material storage device, the pressure plate, the control plate between the 15 201028295 and the -Hig transmission device The slice 々 = the three-dimensional town type. In the following, the output 90 of the present invention can be placed on the front material feed device and the device 30, and the material storage material of the flat material is transported to the workbench: the upper part, and the Udf is moved. Yes-group lost material $?1#Responsible fixture==4 on both sides of device 30_ Device 30 combines - transports material or separates two movements and feeds t workpiece 9 〇 and new layer material is pressed The pressure plate 60 f C is deformed'. In addition, the system of the present invention can be used for the same layer processing method of the multi-layer multi-layer lamination layer, except for the cutting Ά〇=additional-group (4)-setting 7G. The invention is purely processed and implemented in a multi-(four) sheet laminate two system 'for controlling the operation of the material storage device 20, the feeding device, the gluing device, the pressure plate 60 and the W transmission device; wherein the computer System analysis—cutting of the workpiece '” “And at least – the layer contains at least two different feeding sequences, and (4) lung #m 钱 料 = ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ The finished pattern, and the second cut, to cut the pattern to be completed16 201028295 "Embodiment 2" However, in step 110 of the description, it is necessary to process all the 2d i-synthesis energy after the layering process is processed::: Q:: Give the correct = class This is proposed by the present invention To. The order can be sorted according to the object sorting process, because the object Α... is the Boolean operation of the first entry, [B] the new moment 1 is broken, so both are [A] and the line 4= ==:;==product=two connections==into (9) A exists in the moment of the car, the area of the entrance is calculated, and the object is produced! i = [C-the first calculation of the object, because of the ordering calculation , "[D$ a and d of the object array [D], but since A and D can be generated as a new moment matrix and placed next to it, since 4^+ will then take the A and E objects for performance笪,: The object to be picked up needs to generate new, β ^. The first time has an intersection and the object Α is larger than the object ah car 3 These two objects have C objects behind the area, so the area needs to be caught separately, but because The A matrix object then draws the matrix and cannot be merged for the time being. Matrix [F] 'Retake A and G objects\Materials ^ Niu Ya has no parent set, so the new piece area is established and the A area is larger than ^ Bulin operation 'Found this The two volume is larger than the area of G, so a new matrix 201028295 [A, G] is generated. Therefore, the first round of intersection with the A object is generated and produced [B]"[A,C],[〇],[a , E], [F], [A, G] six groups of matrices. Then, take the B object as the head, and carry out the cross-calculation of the object I" first take the B and C objects for comparison, there is no intersection between the two, so there is no need to take the second and then take the B and D objects for calculation, B and D objects area There is a parent set and B is greater than D, so the original matrix [B], [D] can be arranged into a new matrix in order to [B, D], and then, B and E objects do not intersect between the two objects. Therefore, the original state is maintained, and then B and S are calculated by the operation of the two objects, and the B area is large ❿ = rear; D object, so only the original moment "] can be established: J array two does not [ B, D] matrix merges 'final object B and; is different, but the two objects do not intersect, so maintain the original state, after ^ > fork calculation, the number of object matrix evolved into [ADE first parent [A, G ] Five groups of matrices. L LA,bj [B,F] > Continue the calculation of the object with C as the first and the other objects with c and D. The two sides of the mm are then calculated by taking the C and E objects, and the set remains as it is. , the object area is larger than the e object area and [A, cm area has intersection and c does not have any object, so [A, C], [C object behind the object E Behind the object C, the new £_^ matrix is merged and then the objects C and F are rewritten to [AAE]. The set does not need to be merged, and finally the object is not handed over. Intersection, the same as the maintenance = object into the calculation, cross comparison, each object row matrix evolved into the second set of objects [A, G] four sets of matrix. ']' [A, C, E] ' [B, F], continue to perform the Boolean function operation with the D object as the main object, but take the D and E sets first, so the matrix does not need to be changed, and then take the ... and the area of the object is the Boolean function. Calculation, ς, F object calculus, 'generate intersection, and D object 18 201028295 and the following::: The original object in the original [B, D] matrix D object after the D object is placed in the β side: new 3 ^ [Ming Merging, and the F object is handed over to the 斟~ car to be written as [B, D, F], after this, the comparison is different, each matrix evolves g^'DFWACEWAG;! F after the E-E and F objects Object E and ] :Γ: ίίΐBulin function operation 'does not produce intersection, so the original matrix ί [B,D,F]} [AjCsE] 5 [a^ * There is a final group between objects Level relations. After the material, the group of eight hierarchical relationship between objects strains may be material

The type of material and the inner and outer layers of the 2D contour are defined as ' „ each section of the section of the section can be expressed as shown by the river: • Material type code (A, B, C, D..., table material) Type) Λ — - level ordinal position, m., number table group number 该 of the level. Level sequence, i, 2, 3 ·..,., number table k: is the third-order ordinal position 'm.. ·, the number of the group number of the level in the digital table. ❹ A, Μ is the code of the type of the sheet of the processed object, with symbols such as A, B, C... The subscript symbols i, jk, etc., are the hierarchical ordinal positions of the processed objects in the processing layer, the first level of the i table, the second level, the second level of k, and so on. The number of the ordinal 1 is the number in the hierarchy, or the group number '0 in the hierarchy indicates that the hierarchy does not exist. Therefore, the matrix of the hierarchical group relationship between the objects obtained in the above example. [A,C,E] ' [A,G] ' [B,D,F] can be rewritten as follows according to the definition of the object, where [A, C , E] '[A, G] row matrix, a total of A objects, the first group, and the first group of the first object of the A object, the second object A100, C and G are the first group The two objects in the second level are represented by C11G and Gm, and the EU1 object is the third level object and has a direct upper-level relationship with the object 19 201028295 CUG. Similarly, the row matrix [B, D, F], object B2 〇〇, 卩, and ρ2π are the first-level, second-level, and second-level objects in another group, respectively, so the relationship between each level and group of each object can be as shown in the sixth figure. After the definition, the relationship between the various materials and the hierarchical objects shown in the sixth figure, < the object definition of the fifth figure is as shown in the seventh figure, 'the processing layer has three levels of 'seven kinds of material objects'. Therefore, A The trapezoids with B are two kinds of thin sheets, and are the outermost level objects, which can be written as A10〇, B2〇0 and respectively, while triangles, elliptical objects and art, and the shaped objects are the same as the second level' Each is represented by Cii〇, g120 and 〇210, and the round and square objects are the last third level, respectively It is expressed by EU1 and ^211. After completing the definition of the material type of each object in the processing layer and the order number of each contour, then the order of processing is determined. After that, Baye will discuss several different shapes. The condition of the sliced layer is processed and explained further. According to an embodiment of the present invention, when the obtained object is defined as a single group, at different levels, as shown in the eighth figure, there are three in the processing layer. ^ pieces, which are square, triangle and round, etc., these three groups of sounds ^ 包覆 包覆 成为 成为 成为 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Area / age rules. The group of hearts and ones has three levels 'According to the definition of the object classification mentioned above: 2 The required processing times are denoted by Al〇〇, BU〇, Cm respectively. The order of processing can be expressed as the ninth. The figure shows. It can be said that when the circle is a material with the same material, the New & parts processed as shown in the tenth figure can be rewritten as AlU, and the objects are re-processed and different (4) are the same, but because they are in the same group. Processing, i material Du; ^ method simple ^ processing procedures, it is still necessary to carry out eight processing lanes. As shown in the eleventh figure, the three sets of processing of A1()(), B110, Cin, etc. must still be carried out according to the order of 20102010295. According to another embodiment of the present invention, when the derived object is defined as a single group 'different levels. As shown in Figure 12, there are four objects in the processing layer, which have two groups and two levels in total. According to the definition of the object classification, four objects such as triangle, circle, diamond and square can be cut. It is represented by B10, A!!, D2〇, C21. ^ There are two separate groups of objects in this processing layer, so the order of processing the objects can be planned according to the following two ways. 1. Process by group classification. Select one of the groups to go through a single group first. According to the innermost priority production rule, the items in the group's Essence level are processed first. After all the items in the group are processed in sequence, the connection is continued. Process another group of objects. 2. Regardless of the group, each object is processed interactively according to the order of the innermost priority. Therefore, in the above-mentioned object processing pass planning method, this example can be obtained, and the group object processing path is as shown in the thirteenth figure. In the thirteenth figure, in the case of the group processing path, the first group of objects is preferentially processed for processing. The object of the most hierarchical level in the group is Au, so priority processing is required, and then the upper layer Biq is sequentially performed. After the object is processed until the processing of each level object in the whole group is completed, the most layer of the second group is processed (^ object processing, and then D2〇* processing is performed, and the step of processing the object is obtained at the most. In the same way, the second group of object processing paths are used to illustrate the method of using the innermost layer priority processing method for the long-term objects without grouping. The first item of the first group is processed first, and then the group is processed first. The C21 object of the most level is added by 1, the B1 object of the first level of the group of iron shovel is processed 隹—the first level D20 object in the group is replaced, and then the processing of the second group object is processed. The second step is to simplify the processing of the object. In the adjacent pass processing path 21 201028295, if the object has the same material, the process path can be selected first, and the two passes are selected. When the processing paths are combined into a single pass, the processing time and material saving can be reduced. In the thirteenth figure, in the object processing route of the first group, if the objects B and c are the same material, the group can be preferentially selected. The pass processing path 'simplifies the b1g and Cu two-pass processing into a single pass processing, so that a better object processing step path can be obtained. ❹ According to this embodiment, the present invention provides a multi-material sheet. The method for analyzing the processing sequence of the stacked material comprises: (1) analyzing a slice processing of a three-dimensional molding, and defining at least two hierarchical objects in at least one layer, the hierarchical object having a pattern; and (2) giving each level object corresponding to a specified sheet material; (3) a group of hierarchical objects of the same layer; (sentence analysis of the order of feeding of the layer of the layer and the order of processing of the object; (5) according to the order of processing of the object, the merger has the same sheet The processing of the material of the sequential level of the material is to simplify the processing order of the object; (6) according to the order of the single sound material and the simplified order of the processing of the object, in sequence Finishing and gluing; and (7) layering the finished sheet to form the laminated sheet material of the three-dimensional model. % "Embodiment 3" For all rapid prototyping techniques, due to limitations of the processing technology, The thickness of the slice layer is fixed to the maximum. However, according to the third embodiment of the present invention, the system can provide a process for converting the thickness of the sheet, and the gradient of the surface of the ij thick surface can be used when the slope is relatively gentle. When the slope of the thinner contour surface is steeper, use the thickness of the maintenance-(four) city to improve the processing efficiency. When using the rapid prototyping technique of the lamination processing, the sheet material of the thickness is used as the processing material, no. 22 201028295 The characteristic change is the thickness variation, and it is easy to lose the detail feature and affect the dimensional accuracy. 'a The fourteenth figure shows the influence of the processing thickness and the shape shape change on the difference. From this, it can be seen that when the dicing process is performed, since the thickness of the dicing layer is fixed, a step error occurs in actual production. As shown in the fifteenth figure, t is the thickness of the slice, and the height of the sharp corner is 5 height), which is a step error. In general, the step error caused by layer processing is related to the thickness of the slice and the slope of the profile of the workpiece slice. As shown in Figure 16, this relationship can be written as the equation ί 5 sec Θ '5 of which is the ladder The error is /, the thickness of the slice, and 0 is the angle between the normal surface of the sliced face and the direction of the layer construction. It can be seen from the above that the thickness ί of the general layer processing is a fixed value. Therefore, when the slope of the section profile of the slice changes, the Ο changes, so the step error 5 does not change, so that the work & The profile will also produce different error accuracy in each slice. Therefore, according to an embodiment of the present invention, in order to obtain the most uniform layer thickness, if the required layering precision δ is a fixed value, when θ varies with the cutting plane of the cutting surface, the required thickness of the layer is obtained. When the new process & film system has n sets of sheet materials of different thicknesses, the most suitable sheet thickness is obtained with more than 5 layers of precision. According to this embodiment, the present invention provides a ^

Including: (1) analysis - two principles, and in each m to the level of the object, the level - pattern "2" according to the slope of the contour surface of the stereo model, 仏; J -1 should - specify a thick layer of sheet material; (3) layer-by-layer processing of the specified sheet material according to the pattern of the layer object, and (4) laminating sheet material of the g-dimensional model after performing the cutting treatment and the gluing treatment layer by layer. Layer sheet (four) processing method, the present invention 23 201028295 but the layer layer processing hand. The feeding device 'save the foregoing materials one by one to cut the sheet material; one upper == two materials ^ surface; - pressure plate , located above the guarding table ^ ^; material-passing wheel device for positioning the feeding device, the two j device and the gluing device; and a computer system:

$料=置, the feeding device, the cutting device, the data-the surface of the wheel of the three-dimensional model, the slope of the surface is determined from the

Gif sheet material, and controlling the cutting device to cut the pattern on the sheet, and laminating the laminated sheet material. The fourth embodiment of the present invention, using the embodiment of the present invention The second tiger considers the so-called empty area as a new object, and puts the water-soluble secondary wax material into the empty area, that is, if the f can not only solve the problem of the workpiece support, but also eliminate the waste, so it is suitable for As a support material. 仃Removing the material embodiment, the branch material can be stored in another embodiment according to the present invention, the support material can be processed by a spraying device. The area is the object material, and the blank area is replaced by the water-soluble or waxy object. Since the empty area is filled with the supporting material, the new object is added, so the object of the processing layer needs to be redefined. Eight figures, the processing layer evolved into five objects, four materials 24 201028295 1110' ie two sets of special support objects, the number of levels evolved into four: level, its object definition can be expressed as Aiu i, Bi2〇〇, Ci=^ j^iooo ° - an embodiment of the invention of the processing method of the material of the undercut by the vacant area, the gourd piece 100 right meat according to the no, 4^^ step according to the complete Process process verification, system

CADm builds tH3D model and branch structure. Firstly, 3D is established in 3D _ 're-creation of the projection method. 2: The second month of the old moon is placed horizontally, so only need to read, the degree 1/2' is the maximum profile section: Two: The supporting structure required for the contour is the hoist outside = vertical = structure. At the same time, the inside of the workpiece is hollow. After the 70-piece mold 1 and the support structure are established, the material is used as the area. The three-dimensional model of each object is separately smashed: The cow is horizontal! Placement and construction, each layer thickness is solid • lmm, the workpiece is the most accommodating (the hoist shape ·,, ' can obtain 300 pieces of laminated processing required 2 ' 2 surface contours must be simplified to single-object (contour)?:: Layer; ί J multi-group contours need to be disassembled into multiple groups of single two:; and the inner and the inner contours are inserted into the solid surface area. Then each single-cut object is subjected to the Boolean operation of the area 25 201028295. The first layer of the object is determined as the object to be carried out: "The dead ball object: the support - the figure is in the interior and the surface of the workpiece has two "and Cao Wu Wu Lu" yak yin map. This 100th sliced section has a total of The outer shape of the reed is shown by Bi and B2. According to the 3 octagonal shape and the circular ❹ m order, the 之外1 and Α2 objects are taken outside, and the [A2] new matrix can be used. Operation, so both of them are [A1] Bulin operation, the physical area of the object / outer loop is Α2, so they are merged into a new matrix f father 2, and the area of the 大于 is larger than the area of the piece, where the meaning continues The first calculus of A1 and A3 is already present in the matrix, and the object object is Boolean operation to find the new matrix [A3]. The two are larger than the area of the A3 object, because the f father set and the area of the A1 object are merged into a new matrix [A1, A3]. After the object A3 is placed behind the object A1, the object is measured and the object is t A1 „ and B1 The object sorting calculus, the intersection of the two objects of the object creates an intersection and Α1ϋ becomes the new matrix [B1], and the object B1 is placed in the object by the operation: the area of the object is two large and two objects, and the objects of the ai and B2 are finally taken into the i,寅I combined with the new matrix to pick up the object, so you need to cut the 仃 shoulder calculation, Β 2 is the first j intersection and the object Α 1 The two objects in the area matrix: produce [Α1, Α 2], —, ^ Α 2 object headed, the cross-calculation of the object row 26 201028295 order, first take A2 and A3 objects into the ^ no action, then take A2 fish ^ [for 'the two have no intersection, because of the intersection with the B1 object area and & ^Do not perform calculations, A2 objects and [A1, B1] can be combined with A2' so the original matrix [A1, A2] [A1, B1, A2] 'sequentially take a] and B2 arrays are arranged in order. There is no parent set, so the original state is maintained, and the calculation is performed by _ 1 , and the number of the two objects evolves into (4) the small meaning is small (4) the second is the underpayment and the calculus 'object The three-group matrix consisting of A3 and its ^ϋ^,Β2]. After the calculation of A3 and Β1 objects, the intersection of the objects and the intersections is first, the area of the B1 object is larger than the area of the A3 object, and the area of the two objects has an intersection. There is an A2 object behind the B1 object, and the [A1, A3] matrix in the [[Al, Bi, A2] matrix is temporarily merged into [8 1 B $. Only the B1 object is placed in the = object for calculation, and the two objects are H car, then take A3 and t so that the (4) class matrix can be merged into a raw intersection and A3 is larger than the second back of the object and then compared, :3,32] matrix 'so by [A1,B1,A2],[ai , B1, A3], [A1 A3t line matrix evolved into a final three-group matrix with B1 objects as the main production, 2]. = The piece performs the Boolean function operation. For this comparison, the B1 and B2 sets are taken, and the area of the B1 object is larger than the phantom: the area is calculated to produce the two matrices [A1, B1, A2], [A1, A3, B2]. Area, so the matrix can be used, this matrix is the most between all objects; ^ into [A1, B1, A3, B2W Therefore 'depending on the object definition, the fresh group and hierarchical relationship in the processing layer. The green gourd-shaped support i is written as 'a total of four levels, and the pink figure-shaped workpiece object is represented by the second ,, and then there are two independent green circles I 'WB! (10). , each is represented by A1110, All2〇, and the last object is the third layer of color objects, which is the innermost level. After b1121, the object in the shape of the object is defined as a pink finished object, and then the first piece of priority processing principle is used to carry out the object. The inner layer mentioned in the Tao dynasty firstly is not grouped _, and the objects are calculated according to the best sorting. Take the inner level priority production rule 27 201028295 Order iit work. Therefore, the fourth level object bu21 is preferentially added with the third group of the third level Αιι2° object, and then the first: ΐ group object w is followed by the second level object B_, the first 纟β, 2 θ level object Aiooo 'You can get the % m second and secondary processing steps as shown in Figure 23. Alternatively, in the first set of processing steps, the first-level All2G object and the Alm object processing sequence may be reversed, and a non-step job may be obtained. In addition, the object path: the under-processing calculation method is the inner-level priority, but one of the groups is selected first to carry out the single-handedness, and, according to the innermost-level priority production rule, the most hierarchical level in the group is processed first. 'The items in all the levels in this group are completed in sequence, and the other group of objects are processed in succession. Therefore, a single group of Alm objects of the third level is selected for processing, and then another group and Amo objects are successively connected, followed by BllG. The object, and finally the Αι_ object:, 'This is the third process step. Therefore, with this algorithm, a total of three object processing steps can be obtained, and the twenty-third figure is the processing step of the object of the 100th layer of the hoist workpiece. Again and again, according to the simplification principle of the object processing, in the path processing path of the object, if the adjacent materials are processed with the same material, the two-way processing road can be combined into a single pass processing. , simplify the processing steps. From the object processing steps shown in Figure 23, it can be known that 'the first and second paths can be simplified from five sets of passes to four passes of the pass' and the simplified two sets of objects are used. The processing steps are all the same. The third group of machining paths cannot be simplified because there is no adjacent material of the same material, so the first simple road bunker can be used for processing. The simplified processing path is shown in Figure 24. Step 3: Perform layer processing of object processing. After deciding the most simplified object processing, the process steps can be transferred to the computer for layer processing. Taking the 10th cut processing as an example, the simplest processing flow of the object is Bii2i, AU1G + AU2g, b11qq, A1 (K). , the four groups of objects are processed in less order and processed in sequence. 28 201028295 Then proceed to the next layer of processing. Please refer to the second object to stop the processing until the completion of all the cutting objects in the Zhu Wutu, which is a schematic diagram of the formation of the four sets of steps on the surface of the fourth layer. The end of the piece (2) ❿ The layer of the layer ί ?? Provided; for: multi-material sheet to carry on the . broadcast., Γ construction method, including: (1) analysis of a three-dimensional model, i to the analysis ^ containing the structure The slice of the three-dimensional model is the d-branch (7) corresponding to the branch-type and the one-level object corresponds to one as the three-dimensional die. #is ί analyzes the feeding order of the single-layer hierarchical objects (5) m-base and (6) layer-by-layer processing of the dicing process and the gluing process to form a laminated sheet material comprising the truss structure. The construction method of the support structure of the Li-Japanese Japanese coffin sheet, the & π-shou structure construction system, implemented in a multi-material sheet laminate rapid original ', contains a younger one support material, used as the three-dimensional model a support structure; and a computer system for controlling operation of the material storage device, the feeding device, the cutting device, the gluing device, the pressure plate, and the transfer device; wherein the computer system analyzes a three-dimensional model The support structure 'and the cutting process determines that at least one area corresponds to the first selected material 'the computer system controls the feeding sequence of the material storage device' and controls the cutting device to perform the processing processing on a layer by layer basis to construct the inclusion The laminated structure of the support structure. 29 201028295 [Simple description of the diagram] The first diagram is a schematic diagram of the prior art of rapid prototyping. The second diagram is a flow chart of the prior art of rapid prototyping. The third drawing is a flow chart of a process for a multi-ply film rapid prototyping method according to the present invention. The fourth drawing is a mechanism for the multi-ply film rapid prototyping system according to the present invention. The fifth drawing is a relationship diagram of a plurality of materials and levels. The sixth picture is a list of relationships between groups and groups of objects. The seventh figure is a definition of the objects of various materials and levels. ® Figure 8 is an image definition of the different levels in the same group. The ninth figure is a flow chart of the processing steps of the objects in different levels in the same group. The tenth figure is an object definition map of the same material in different groups in the same group. The eleventh figure is a flow chart of the processing steps of the objects in different levels in the same group. The twelfth figure is a multi-level group object definition map. The thirteenth figure is a flow chart of the steps of the multi-level object layer processing process in a plurality of groups. The fourteenth figure is a schematic diagram of the machining error caused by the different contour slopes and different processing thickness changes. The fifteenth figure is a schematic diagram of the step error generated by the layer processing. The sixteenth figure is a schematic diagram of the relationship between the step error and the slice bevel and the thickness of the slice. The seventeenth figure is a schematic view of the outline shape of the object and the waste area in the processing layer. The eighteenth figure is an object definition map in which a support material is added to a processing layer. The nineteenth figure is a flow chart of the processing steps of the article with the supporting material in the processing layer. 30 201028295 The twentyth figure is a perspective view of a hoist workpiece. The twenty-first figure is a schematic cross-sectional view of the support structure inside the hoist workpiece and the ball object. The twenty-second figure is a two-dimensional object definition diagram of the 100th slice of the hoist workpiece. The twenty-third figure is a flow chart of the processing steps of the object of the 100th slice of the hoist workpiece. The twenty-fourth figure is the simplified processing step of the twenty-third figure. Flowchart The twenty-fifth figure shows the four groups of objects in the 100th slice of the hoist workpiece ❿ The generated object generation diagram. The twenty-sixth figure is a semi-finished drawing of the hoist workpiece and the support. The twenty-seventh figure shows the finished hoist after removing the support structure. [Main component symbol description] 20 Material storage device 30 Feeding device 40 Work table 50 Cutting device · 60 Press plate 70 Gluing device 80 Slide device 90 Work piece 100 Hoist parts 110 Hollow object 120 Ball member 130 Support structure 200 Hoist 210 Support Structure 31

Claims (1)

201028295 VII. Scope of application for patents: 1. A multi-material sheet stacking fast catching multiple materials storage pens ¥ soil system, including: sheet material; mother-material storage device storage and transfer material transfer 2 2 workbench> description material storage device The sheet material is loaded with the sheet material; - the sheet material is cut by two; the upper part of the σ is pressed and the thickness of the sheet is pressed; and the feeding device, the cutting device, ί: ί; The system is used to control the material storage device, the feeding device ί, and the platen and the conveying device are patterned on the sheet materials, and the laminated sheet material is constructed. The multi-material sheet laminate rapid prototyping described in the article 3. If the material storage device stores different filaments, the multi-material sheet laminate rapid prototyping material described in item 1 and the medium-material storage device store different thick layers. The multi-material sheet laminate rapid prototyping described in item 1 of the sheet is stored in the material storage device as described in item 1 of the support structure of the three-dimensional model. The foregoing cutting device in the thin film laminate rapid prototyping 6 is a laser cutter. The multi-material sheet rapid prototyping described in item 1 is described in the eighth section as a spray head device for spraying glue. 32 201028295 Rapid accumulation of prototypes 8. - Cutting device and the gluing device. A method for rapid prototyping of a layer of slab material comprises: (1) analyzing a layered process of a three-dimensional model, and at least a level object, the layer object having a layer definition (2) giving each level object a corresponding sheet material. (3) Analyze the feeding sequence of the layered objects of the single layer. The order of the materials is determined by the η setting of the sheet material. Material ί two-layer rapid prototyping different material storage device 'each material storage device storage material transfer table successively deposits the aforementioned material storage device sheet m = cutting and splitting for cutting the sheet material; device 'for adhesion Glue the thin pressure plate, disposed above the work surface, with m surface material; and the thinness of the mouth and the 用以 ϊϊ 用以 for positioning the feeding device, the cutting device, the same layer processing system comprises: ; 2, $ $ $ storage device, the device s device, the gluing device, the platen, and the slice processing of the three-dimensional model of the transfer brain system' ^ at least two different sheet materials, then The Electricity 33 201028295 The cereath controls the feeding sequence of the material storage device, and controls the cutting device to perform the first cutting after at least the second pass processing of the layer to cut the pattern of the previous pass processing. And a second cut to cut the pattern to be completed in one operation. Ίο. A method for processing a multi-layer laminate, comprising: (1) analyzing a slice process of a three-dimensional model and defining at least two hierarchical objects in at least one layer, the hierarchical object having a pattern; (2) giving Each level object corresponds to a specified sheet material; (3) analyzing the feeding order of the layer items of the layer; (4) performing the first pass processing pattern of the first specified sheet material 依 according to the feeding order of the layer; (5) performing a second pass processing of the second specified sheet material according to the feeding order of the layer, comprising: a first cutting to cut the first pass processing the completed pattern; and a second time Cutting to cut the pattern to be completed by the second pass; and (6) performing the pass processing on the layer by layer to construct the laminated sheet material of the three-dimensional model. 11. A method for analyzing a feeding processing sequence of a multi-material sheet laminate, comprising: (1) analyzing a layering process of a three-dimensional model, and determining at least two levels of objects in at least one layer of Φ, the layer object having a pattern; Providing each level object with a specified sheet material; (3) grouping the hierarchical items of the same layer; (4) analyzing the feeding order of the layer items of the layer and the processing order of the object passes; (5) depending on the object path Sub-processing sequence, combining the processing of sequential grades with the same sheet material to simplify the processing order of the object; (6) According to the feeding order of the single layer and the simplified order of the processing of the objects, sequentially A cutting process and a gluing process for a specified sheet material; and 34 201028295 (7) After the cutting process and the gluing process are processed layer by layer, the laminated sheet material of the three-dimensional model is constructed. 12. A variable thickness layer laminar processing system comprising: a plurality of material storage devices, each material storage device storing different thick layer of sheet material; a feeding device for sequentially transferring the sheet material of the material storage device a sheeting machine for laminating the sheet materials; a cutting device for cutting the sheet material; a gluing device for attaching the adhesive to the surface of the sheet material; a pressing plate disposed on the table Upper, for pressing and laminating thin 'sheet material; a transport device for positioning the feeding device, the cutting device and the gluing device; and a computer system for controlling the material storage device, the feeding device The operation of the cutting device, the gluing device, the pressure plate, and the transport device, wherein the computer system determines the sheet material transferred from the material storage device based on the slope of the contour surface of a three-dimensional model and controls the cutting A pattern cut on the sheet material is constructed, and the laminated φ sheet material is constructed into the three-dimensional model. 13. A method for processing a thin layer of a thick layer, comprising: (1) analyzing a layered process of a three-dimensional model, and defining at least one level of the object in each layer, the level object having a pattern; (2) according to one The slope of the surface of the rim of the three-dimensional model is given to each layer to a specified thick layer of sheet material; (3) layer-by-layer cutting and gluing treatment of each specified sheet material according to the pattern of the layered object; (4) After the cutting process and the gluing process are performed layer by layer, the laminated sheet material of the three-dimensional model is constructed. 35 201028295 14. A multi-material sheet laminate building structure construction system implemented in a multi-material sheet laminate rapid prototyping system, the multi-material sheet rapid system comprising: a plurality of material storage devices for storing different sheet materials; a feeding device for sequentially transferring the thin material of the material storage device to a work table; a cutting device for cutting the sheet material; a gluing device for attaching the adhesive to the surface of the sheet material; Located above the workbench to press-fit the laminated sheet material; a transport device for positioning the feeding device, the cutting device and the gluing device; the support structure construction system comprising: a first supporting material for supporting the three-dimensional model; and a computer system For controlling the operation of the material storage device, the feeding device, the cutting device, the gluing device, the pressure plate and the transmission device; wherein the computer system analyzes a support structure of a three-dimensional model, and processes the cutting layer At least one area corresponds to the first building material, the computer system controls the feeding sequence of the material storage crack, and the cutting device is controlled to perform the processing processing on the layer by layer, and the supporting structure is laminated and thin. The composition of the W4 item is described in the W4 item. The support of the first piece of material is stored in it. The support of the multi-material sheet layer described in the 14th article of the patent (4) The first support material is a water-soluble material, and the first support material is a water-soluble material, as described in the patent application scope. The multi-material sheet laminate support structure construction system, wherein the first support material is a waxy material. A method for constructing a structure of a multi-material sheet, comprising: (1) analyzing a support structure of a three-dimensional model; (2) analyzing a slice process comprising a three-dimensional model of the support structure, and defining at least two layers in at least one layer a hierarchical object having a pattern; (3) giving at least one level of the object a supporting material as a supporting structure, and at least one level of the object corresponding to the sheet material as a three-dimensional model; (4) analyzing the single layer Feeding sequence of the layered objects; (5) cutting and gluing the sheet material in sequence according to the feeding order of the single layer; and (6) processing the cutting and gluing treatment layer by layer to construct the support Structured laminated sheet material. 37