KR101628164B1 - 3d printing system using block type structure combined with fdm technology and this hybrid data generation method for 3d printing - Google Patents

Abstract

The hybrid 3D printing system according to the present invention receives a design data of a 3D model designed from a terminal, a computer, a terminal, and a computer for designing a 3D model and generating design data of the 3D model, And receives the 3D model design data from an operating server, a terminal, a computer, or an operating server that calculates the costs generated according to the type and number of blocks, and stacks the 3D model inside the block through an automatic supply method, A hybrid 3D printer for fusing a resin extruded plastic by a resin extrusion method; And a communication network for transferring data between the terminal and the computer, the operating server, and the 3D printer of the block stacking type, and the combination of the block stacking method and the resin extrusion method, a layer is formed on the surface of the 3D- It has the effect of printing the part smoothly.

Description

TECHNICAL FIELD [0001] The present invention relates to a 3D printing system that combines a block-stacking method and a resin extrusion technique, and a design data generation method for hybrid 3D printing.

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a 3D printing system combined with a block stacking method and a resin extrusion technique, and a design data generation method for a hybrid 3D printing method. More particularly, By merely selecting and assembling / stacking the results of 3D design works over the limit of viewing and using them only in cyberspace, the work or image created in cyberspace is completed and delivered as a real 3D model in the real world, A 3D printing system with a block lamination system combining a block lamination system and a resin extrusion technology to provide a new flow and cultural fashion that secures productivity and creativity, and ultimately, 3D And a design data generation method for the linting method.

3D printing technology is drawing attention as the technology that will cause the third industrial revolution in recent years. 3D printing can be produced anywhere in the world with digital design drawings and 3D printers, It is attracting attention as the core of the paradigm change.

3D printing itself has been used mainly in production of prototypes since the end of 1980s. However, due to the development of materials technology, 3D printing has been applied not only to plastic but also to glass, metal, bio and food materials.

The price of products that reached hundreds of millions of won has fallen to tens of millions, and the popularization of millions of won's worth of products has come to the fore.

As individual needs are diversified, personalized products, which are difficult to produce with conventional standardized mass production processes, can be produced directly with 3D printers. In the manufacturing industry, trial and error from product planning to prototype implementation is dramatically shortened Is expected to accelerate.

3D printing techniques are classified according to whether the material used is liquid, solid or powder, and how the material is used to shape it. 3D printing technology has been known to be commercialized in about 20 ways so far, but the common points are made according to the principles of 'differential' and 'integral', and they are divided into three stages. First, a computer design is made using a 3D design program and then stored in a predetermined data format (STL format, etc.). The 3D printer analyzes the three-dimensional design drawn by dividing the three-dimensional design into a thin horizontal layer as if it is differentiated, When the material is drawn from the floor to the top in a shape drawn on the top, the three-dimensional model is completed.

In other words, they are using both the differentiating minutiae of a single model, and the principle of integrating these finely chopped pieces into the original model.

Solid-based, resin-extruded (FDM), powder-based rapid prototyping (SLS), and DLP and SLA (liquids) that classify 3D printers that can deliver new revolutionary potentials by process (solid, liquid, Based, photo-curable resin molding).

In the case of FDM (resin extrusion method), materials such as solid plastics dissolving in heat are pulled out like a thread, and this is gradually melted and stacked. When the material is inserted into a sprayer capable of moving forward and backward and rightward and leftward, the sprayer instantly melts the material to make a model Spray the material little by little and make a shape. Although the cost is relatively low and the material can be put into various kinds and the durability of the model made is strong, the layer is obvious on the surface due to the thickness of the material spraying machine, the production speed is long, precision is not very high, Since the surface of the substrate is rough, a post-treatment process is required. As a post-processing process, the surface condition can be improved by machining the surface with a cutting and polishing tool according to the 3D stereoscopic shape using a CNC engraver.

SLA (Light-curing resin molding) method is a method of hardening a layer of light-curable plastic, which reacts with light, into a water tank by layering one layer at a time. As the molding plate is lowered in the water tank, hardened materials are piled up little by little. Which is suitable for making a smooth, complicated or delicate shape, but has a problem that the material cost and the cost are expensive.

The DLP (Digital Optical Technology) method is a method in which a thin layer of photocurable plastic reacts with a laser or a strong ultraviolet ray to obtain a resultant product. The liquid is immediately hardened by an ultraviolet lamp attached to the sides of the injector, The raw material is sprayed again on the floor and piled up.

Precision is the highest, which allows delicate expression, but it is time consuming and expensive. The DLP method is advantageous in precision, surface finish, and manufacturing speed, but the FDM method is advantageous in material strength. In this way, the 3D printer produces data that is cut into more than 10,000 pieces horizontally as if it is differentiated as if it is a three-dimensionally drawn object, and a very thin film (layer) is stacked one by one to complete the object from the bottom to the top.

Just as an inkjet printer combines the three colors of red, blue, and yellow to create a variety of colors, 3D printers build up layers that are wider, narrower, and more or less aligned, depending on the design. Three-dimensional printers developed up to now can stack about 1 ~ 3cm height per hour, and the thickness of the layer is about 0.01 ~ 0.2mm, thinner than one sheet of paper. The thinner the layer, the more elaborate the object is, but the longer the printing time, and the stacking method creates the model, so there is a limit to 100% perfect reproduction of the actual surface.

That is, the solid and liquid and powder-based 3D printing methods known so far have fundamental problems such as very slow laminating speed, weak model strength (limited use as a prototype), difficulty in mixing materials and colors, and high-level 3D graphic design technology.

In order to solve these problems, a 3D printing system of a block stacking method determined by a new fourth 3D printing principle and a method of generating design data for 3D printing have already been filed (Application No. 10-2013-0107216).

However, when the block stacked type 3D printing is performed in the manner disclosed in the above-mentioned patent application (10-2013-0107216), the advantage of using a very fast laminating speed and various materials and colors is that the block thickness 0.2 to several millimeters) is formed and after the lamination is completed, finishing may be required with equipment such as a CNC engraving machine depending on the application.

In addition, smart phones with touch screen and motion sensors, 20-megapixel camera sensors, full-HD (1920x1080) high-resolution displays and 2GHz octa-core processors are rapidly gaining popularity, , And the 7-inch and larger mobile devices such as tablet, smart pad, and tablet PC are rapidly replacing smartphones with computers, so the current 3D printing user accessibility It is necessary to provide a 3D model to be designed by a method of stacking standardized blocks (Voxel), so that a desired 3D model can be easily designed even with a mobile device.

Korean Patent Publication No. 10-2009-0014395 (Feb. 10, 2009)

Accordingly, in order to solve the above-described problems, the present invention is directed to a method of manufacturing a three-dimensional (3D) model, in which an outer appearance in which a structural stiffness is important is a block lamination method and an aesthetic appearance is important, is carried out by an FDM resin extrusion method (hereinafter referred to as paint spraying and paint- A 3D printing system combining a block stacking method and a resin extrusion technique, and a method of generating design data for hybrid 3D printing.

In this case, when the resin extruded material includes a binding function (bonding), the resin extruded plastic is fused to the mutually contacting surfaces of the blocks to be laminated, and a new block is laminated for that purpose.

In addition, the present invention firstly embodies a general shape of the 3D model (about 98% of the actual size) in a block laminate form, and secondly, after the lamination is completed, the outer shape is formed by a coloring means (resin extrusion, paint spray, ink jet or urethane) Filling the remaining shape (100% of actual size) by circulating and repeatedly coloring the entire area with the color designated in the area and curing step or coating formation (such as UV coating material) for selectively protecting the colored coating after coloring And a method of simultaneously implementing color and material according to a coloring and a coating material.

The objective of the 3D printing is to make the 3D model robust and lightweight structure unlike the existing FDM method by laminating the inside of the structure in the form of a structure (for example, honeycomb).

In addition, since the surface of the finished product of the block lamination is somewhat rough like the FDM type, it is necessary to finish the surface finishing process. In the 3D printing of the block lamination method, the inner block surface and the external FDM resin molding surface are combined to form a model , And the final 3D model is completed in the form of precision machining or polishing by incorporating a separate CNC machine tool or a CNC machining function into a 3D printer at an extra volume of about 5% It is intended to provide a method.

According to an aspect of the present invention, there is provided a hybrid 3D printing system for receiving a design data of a 3D model designed from a terminal, a computer, a terminal, and a computer for designing a 3D model and generating design data of the 3D model, And 3D model design data is received from an operating server, a terminal, a computer or an operating server that calculates the number of blocks to be used in the 3D model and calculates the costs generated according to the types and number of blocks, A hybrid 3D printer in which resin extruded plastic is fused by a resin extrusion method to the outside; And a communication network for transferring data between the terminal, the computer, the operation server, and the 3D printer of the block stacking method.

Preferably, the hybrid 3D printing method according to the present invention includes the steps of: a) forming a block having a different color, material and shape; b) combining the formed blocks to create a 3D model manually or automatically A step of receiving the design data of the 3D model designed in the step `b` in which the c-block stacking type 3D printer is subjected to 3D printing from the terminal, the computer or the operation server through the external communication means, A step of feeding the molded blocks required by the design data from the block supply means and transferring the block supplied by the guide tube continuously transferring the blocks by connecting the supply means and the header and the drive device, The header and the driving device are controlled by the motion control means, Stacking a plurality of blocks on a work table at a designed coordinate position by stacking the blocks with a header and a block discharging means of a driving device to stack the 3D models; f. fixing the molded blocks in which the bonding and fusing means of the block stacked type 3D printer are stacked by the header and the driving device; And g process of repeatedly printing the paint by repeatedly spraying the paint or replacing it with the ink jet nozzle part by melting the plastic wire with the resin extrusion heater nozzle part to make the outside of the 3D model, or by replacing the resin extrusion heater nozzle part with the spray nozzle part And coloring and coating the coating layer.

A 3D printing system combining a block stacking method and a resin extrusion technique according to the present invention and a design data generating method for hybrid 3D printing includes a block stacking method in which a 3D model is laminated by an FDM resin extrusion method in an outer part by a block stacking method, And resin extrusion technology, it is possible to smoothly print a portion of a 3D printed surface, in particular, a surface of a curved surface by making a layer of roughness.

That is, a 3D printing system combining a block stacking method and a resin extrusion technique according to the present invention and a design data generating method for hybrid 3D printing can be realized by a block stacking method inside a printed model, a 3D modeling So that it is possible to overcome the problems such as slow printing speed, low strength, various colors and difficulty in using materials of a conventional 3D printer, thereby realizing a 3D model of quality close to a commercial product beyond the prototype.

In addition, the 3D printing system combining the block stacking method and the resin extrusion technique according to the present invention and the design data generating method for hybrid 3D printing can be realized by embodying a general shape of a 3D model as a block stacking type, A step of filling the remaining shape by circulating and repeatedly coloring the whole with the color designated at the site, and optionally, the coating forming step, thereby realizing various colors and materials at the same time depending on the coloring and coating materials.

In addition, the 3D printing system combining the block stacking method and the resin extrusion technique according to the present invention and the design data generating method for hybrid 3D printing have a problem that since the inner surface is formed by block lamination and the surface of the finished product is FDM- Blocks are stacked and laminated to 98% of actual size, slightly less than the actual 3D model, and 5% or more is filled with coloring process. Finally, 5% of the actual 3D model is printed and then machined or polished with CNC machine tool It has the effect of realizing 3D model as it is.

In addition, the 3D printing system combined with the block lamination method and the resin extrusion technique according to the present invention and the design data generation method for hybrid 3D printing can be applied to a design of a mobile device, As a 3D model can be created in real life in real life, it has the effect of incorporating elements of creativity, education, and intelligence together with entertainment elements at the same time.

In addition, the 3D printing system combining the block lamination method and the resin extrusion technology according to the present invention and the design data generation method for hybrid 3D printing is a mobile business that enables a user to receive a result of a work performed by executing a program on a mobile device It has the effect of pioneering a new profit model of the device.

Finally, a 3D printing system combining a block stacking method and a resin extrusion technique according to the present invention and a design data generating method for hybrid 3D printing can be implemented by a user using various blocks provided to creatively display screens of a computer and a mobile device Unlike the complicated 3D graphics technology, the user can easily learn, and there is no limitation in place and time, and unnecessary purchasing and waste of materials can be prevented.

1 is a block diagram of a hybrid 3D printing system combining a block stacking method and a resin extrusion technique according to the present invention,
FIG. 2 is an actual outline view of a 3D printer of a hybrid 3D printing system combining a block lamination method and a resin extrusion technique according to the present invention, and FIG.
3 is a detailed block diagram of a 3D printer constituting a hybrid 3D printing system combining a block lamination method and a resin extrusion technique according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed to be limited to ordinary or dictionary meanings, and the inventor should properly interpret the concept of the term to describe its own invention in the best way. The present invention should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

1 is a block diagram of a hybrid 3D printing system combining a block stacking method and a resin extrusion technique according to the present invention.

1, a hybrid 3D printing system combining a block stacking method and a resin extrusion technique according to the present invention includes a 3D printer 100, a terminal and a computer 200, an operation server 300, and a wire / wireless communication network 400, .

3, the 3D printer 100 includes a 3D printer 190, which receives design data of the 3D model 190 from the terminal and the computer 200 or the operation server 300, An external communication means 170, a work table 110 having a work board for stacking formed blocks to assemble the 3D model 190 of the design data, the 3D model 190 being operated on the work table 110, A guide tube 130 for continuous supply of the molded block connected to the header and the driving device 140; A block supplying means 195 for sequentially supplying (supplying) the formed block to the guide tube 130 in sequence; a block supplying means 195 installed in the header and the driving unit 140, A bonding and fusing unit 150 for fixing the formed blocks placed at the designed positions by the header and the driving unit 140, An image processing means (160) for clearly extracting a position coordinate of a 3D model being worked on in the work table (110) through processing; And motion control means (180) for receiving position coordinate information from the image processing means (160) and performing precise control of the header and driving device (140) so that the formed block can be accurately placed do.

3 is a detailed block diagram of a 3D printer constituting a hybrid 3D printing system combining a block lamination method and a resin extrusion technique according to the present invention.

2, the 3D printer 100 according to the present invention may be used for resin extrusion as shown in FIG. 2, and FIG. 2 is a cross-sectional view of a hybrid 3D printer according to an embodiment of the present invention. A resin supply portion 194 in the form of a plastic wire wound around a winding roll and a resin extrusion heater nozzle portion 193 formed in the periphery of the header and the driving means 140.

The resin extrusion heater nozzle unit 193 may be replaced with a road spray nozzle unit or an ink jet nozzle unit (mainly UV is used in the post-injection curing system) to be used as a coloring and coating unit.

In the 3D printing system combining the block stacking method and the resin extrusion technique according to the present invention, the 3D printer 100 of the resin extrusion (FDM) The plastic wire wound around the supply portion 194 is connected to the header and the driving means 140 and the drawn wire is melted and laminated in the resin extrusion heater nozzle portion 193.

The guide tube type block stack type 3D printer is installed between the block supply means 195 and the guide tube 130 and between the header and driving device 140 and the block discharge port 121 and the work table 110 So that the header and the driving unit 140 can continuously supply and stack the blocks.

The bonding and fusing means 150 may be attached to the header and driving device 140. The bonding dispenser may be a droplet type or a line type having a diameter of 0.5 mm or less, Or the bonding material can be sprayed. Therefore, when the bonding material is not previously applied to the block, the bonding and fusing means are moved to a position where the block is to be fixed to spray the bonding material, .

3, a hybrid 3D printing system combining a block lamination method and a resin extrusion technique according to the present invention will be described in detail.

As mentioned above, FIG. 3 is a detailed block diagram of a hybrid 3D printer combining a block stacking method and a resin extrusion technique according to the present invention.

The inside of the 3D model 190 according to the present invention is formed as a block, which is at least smaller than the actual model, and the outer shape of the 3D model 190 is formed by fusing a plastic wire by a resin extrusion method or by using an inkjet (fine coloring) Repeatedly spraying is used to complete the actual 3D model.

The blocks constituting the interior of the 3D model 190 are sequentially supplied to the head and the driving device 140 in accordance with the stacking order through the guide tube 130, By virtually eliminating the travel time of the device 140, super-fast block stacking is possible.

In the 3D printing only by the FDM method, in order to fix the plastic filament such as ABS or PLA to the work table 110, it is necessary to heat the surface of the work table to about 200 DEG C, It is difficult to detach the block 190 from the work table 110. However, in the block stacking method, a double-sided tape is attached to the work table 110, Therefore, the 3D model can be easily separated from the work table 110 when the double-faced tape is peeled off after the final layer block stacking operation is completed. As a result, the hybrid 3D printing system combining the block stacking method and the resin extrusion technology It is not necessary to heat the work table 110 because the paint and the plastic are fused to the block.

One header pipe 130 is connected to the header and the driving unit 140, and the blocks are continuously supplied through the guide tube 130.

Since the guide tube 130 is physically connected to the header and the driving unit 140, the guide tube 130 is made of a flexible material and has sufficient internal clearance to move the block in the guide tube 130.

In another embodiment, when the plurality of guide tubes 130 are connected to the header and driving device 140, blocks of different sizes, colors, and materials may be simultaneously supplied.

The present invention is similar to a method in which two or more of the wire tubes 130 are installed to supply filament wires of different colors in an FDM 3D printing method, Not only color, but also blocks with different sizes and materials can be supplied.

In the method of continuously supplying the blocks to the guide tube 130 of the block continuous automatic supply function, generally, the block supply means 195 installed at a position higher than the head and the driving device 140 One by one, and then feeding them one by one.

When the block supplying means 195 is installed at a position lower than the head and the driving device 140, means for forcibly feeding the blocks one at a time must be added.

That is, the container of the block supply means 195 may be formed in a bowl shape, and the blocks may be inserted into the pawls and vibrated to sequentially transfer the components one by one to the guide tube 130.

Alternatively, the guide tube 130 and the block supply unit 195 may be integrated with the header and driving unit 140.

That is, the guide tube 130 and the block feeder 195 may be a bulk feeder filled with blocks or a stick feeder containing blocks in order, or a strip feeder (Stripe feeder) format.

The block ejecting means 120 installed in the header and driving device 140 for selecting the block supplied from the guide tube 130 and moving the selected block to the corresponding position coordinates and stacking the block on the 3D model 190 of the work table 110 A header and a driving unit 140 are provided at a lower end thereof with a discharge port 121 through which the block is discharged in the direction of the work table 110. A means for aligning and positioning the block at the upper end of the discharge port 121, (An actuator such as a solenoid valve or a motor).

When a plurality of guide tubes 130 are connected to the header and the driving unit 140 to supply various blocks, a plurality of block discharging units are provided to control the positions of the discharging outlets and position coordinates (X, Y) So that the block is pushed out.

Several methods of bonding and fusing means 150 for fixing the blocks together can be proposed.

As a method of fixing the stacked blocks by bonding or the like in a short time, an adhesive is applied to the surfaces to be bonded between blocks before placing the molded block in the guide tube 130 on the work table 110 do.

Alternatively, a block storage container such as a reel or a tray may be configured to apply and store an adhesive material at the lower end of the block before packaging. In this case, Or UV (ultraviolet) curing type adhesive material is applied, the UV shielding film is shielded by UV blocking film to maintain the non-adhesive state.

In addition, different types of curing processes are required depending on the adhesive material.

That is, in the case of bonding treatment using a general adhesive material, since the adhesive material is cured after a certain period of time by ambient environmental conditions, means for promoting curing by the bonding and fusing means 150 is needed.

That is, in the case of bonding treatment using an ultraviolet (UV) curable adhesive, a means for irradiating ultraviolet rays to the bonding and fusing means 150 to the bonding surfaces supplied from the guide tube 130 is required.

In addition, in the case of performing the bonding treatment with the thermosetting adhesive, means for irradiating heat to the bonding surface of the laminated block supplied from the guide tube 130 by the bonding and fusing means 150 is required.

When the bonding process is performed using the electromagnetic wave hardening adhesive, means for irradiating electromagnetic waves to the bonding and fusing means 150 to the bonding surfaces of the stacked blocks supplied from the guide tube 130 are required.

When using other bonding materials other than the thermosetting type, the electromagnetic wave type and the UV type, the corresponding curing device should be installed.

The bonding and fusing unit 150 may be installed at a specific position outside the head and the driving unit 140. In the case of using a UV type or a thermosetting or electromagnetic radiation curable bonding material, an ultraviolet LED lamp, a thermosetting unit, Device or the like can be installed around the discharge port 121 which is the lower end of the head and the drive device 140. [

Alternatively, the bonding and fusing means 150 for stacking and fixing the molded blocks may be provided with a bonding processing means at a specific position that can adhere the adhesive to the lower end of the block when the block is immersed, And a block that is discharged through the block discharging means 120 provided in the driving device 140 is connected to the work table 110. The block 130 is connected to the work table 110, There is a method in which the adhesive moves to the adhesive treatment means before discharging and lamination to the corresponding designed position of the 3D model 190 being assembled in the housing 110, and the adhesive is applied to the bottom of the block.

Alternatively, a dispenser, which is a means for injecting or spraying an adhesive material at a position where the block is to be lowered, is installed in the header and the driving device 140, and the dispenser of the 3D model 190 assembled in the work table 110 There is a method in which the adhesive material is injected or sprayed to a corresponding position before the block is placed at the designed position.

The dispenser should adjust the amount of adhesive (e.g., about 0.5 mm in droplets) by varying the nozzle size, discharge time, temperature, and pressure according to the block.

In this case, it is possible to constitute the process of moving the header and driving device 140 to the designed position coordinates, dispensing the adhesive material with the dispenser, Is minimized, it is possible to increase the deposition speed.

Alternatively, the bonding and fusing unit 150 may be configured to apply a bonding material to the work space of the work table 110 for stacking the 3D model 190 before the block stacking operation is started, do.

It is also contemplated that means for injecting or spraying an adhesive to the plane on which the block is to be placed may be provided to allow the 3D model 190 in operation on the work table 110 prior to beginning to stack the block with the header and drive device 140 ) Or by pre-spraying or spraying adhesive onto certain parts of the stack.

In this case, the lamination is completed within the adhesive curing time. That is, after all the layers are stacked in the block, a method of applying a bonding material over the entire work section can be provided.

Alternatively, the blocks are stacked on the 3D model 190, and the bonding material is applied again to the entirety of the model, so that the gaps between the blocks are filled with the bonding material so as to assemble more firmly.

Alternatively, when plastic materials are used, there is a method of bonding by ultrasonic welding at the intermediate stage or at the final stage. In addition, the shape of the block can be increased not only by a rectangular parallelepiped but also by providing unevenness such as a lugo.

And the block of the block supply means 195 is continuously supplied to the header and the driving device 140 through the guide tube 130.

The header and driving unit 140 supplies a block of the upper block supplying means 195 to the guide tube 130 to make the interior of the 3D model 190, Blocks are stacked on the working table 110 at corresponding positions of the 3D model 190 in operation.

The header and driving unit 140 may be formed by melting a plastic wire with a heater nozzle of a resin extrusion type to melt the resin and spraying the paint with a spray nozzle or by using an ink jet nozzle And the paint is repeatedly printed.

By replacing the resin-compressed heater nozzle unit 193 having the above-described functions with the spray nozzle unit or the ink-jet nozzle unit, it can be utilized as a coloring and coating means.

And optionally includes image processing means 160 and motion control means 180. At this time, the motion control unit 180 controls the position of the header and driving unit 140 to move the discharge port 121 of the block discharging unit 120 to a design position where the stacking is to be performed, thereby controlling the stacking.

In addition, the image processing unit 160 may perform accurate positioning and operation of the header and driving device 140 through the image processing that explicitly extracts the block position coordinates of the 3D model 195 in operation in the work table 110 And determines the stacking state of one block.

The bonding and fusing means 150 is a means for fixing the blocks stacked by the header and the driving device 140, and supplies an adhesive material, a curing device and the like.

Meanwhile, in the 3D printer 100, various methods may be considered as a method of forming the inside of the layer as a block, the outside as a coloring and coating unit 185, and adjusting the height to laminate the next layer, When the maximum height of the 3D model 190 is limited to the vertical movement range of the header and the driving unit 140, the height of the header and the driving unit 140 is adjusted.

The 3D printer 100 may be configured to control movement of the work table 110 in the longitudinal direction with respect to the motion control unit 180 and the header and driving unit 140 so that the 3D model 100, (190).

The header and driving unit 140 receives the block of the upper block supplying unit 195 and supplies the inside of the 3D model 190 in the work table 110 through the block discharging unit 120 Even if the coloring and coating means 185 is formed by stacking the blocks and forming the outside, the surface is roughened in the case of the curved surface since the layer is formed by the thickness of the block and the coloring and coating layer.

In order to solve this problem, it is possible to propose a method of machining the surface of the block with CNC (Computerized Numerical Control) equipment.

In this case, the shape of the 3D model is larger than that of the actual 3D model (for example, about 2% depending on the material of the block, for example, the material of the strong block is about 2% and the material of the weak material is about 5% The size of the inner block must be smaller than the actual 3D model.) Even if the CNC equipment is cut, it is possible to complete a 3D model of the same size as the actual model.

That is, the 3D model may be produced and separated in the 3D printer 100, and then re-installed and fixed to the separately installed CNC equipment.

In this case, there is a fear that a reference coordinate error which is a machining standard may occur depending on the method of fixing to the CNC equipment of the 3D model.

Therefore, a most preferred method is to insert a cutting tool (such as a cutter or a polishing or lapping wheel) into the header and drive device 140 after completing the 3D model stacking of the work table 110 with the header and drive device 140, So as to process the 3D model.

Therefore, it is also possible to provide a head for block stacking, a head for coloring and coating means, a head for cutting (including polishing and lapping), and three driving devices in the resin extrusion heater nozzle portion 193, When the coating is completed, the use of the block stacking head and the driving device may be stopped and the 3D model may be processed by switching to a cutting head and a driving device.

In this case, depending on the product type, the work table 110 for fixing the 3D model is configured to rotate (5-axis control) so that a complex shape can be processed.

Alternatively, it is also possible to construct the 3D model by processing the head for block stacking, the head for coloring and coating means, the head for cutting (including polishing and lapping), and the driving device 3 separately.

It is necessary to install a supporter to support at the bottom because it can not be connected by stacking the blocks according to the shape when stacking blocks. It is advantageous to remove the supporters in 3D printing by configuring 5-axis to rotate and tilt work table have.

The super high-speed multilayer 3D printer of the present invention, in which the standardized block is automatically supplied continuously to the guide tube 130 and laminated inside the 3D model 190, is a disadvantage of the existing block-stack 3D printer It is possible to solve the waste of the block loading time (time required for the header and the driving device to pick up the moving block up to the block feeding position and move it down to the stacking place and drop it down).

In addition, since the exterior is repeatedly colored and coated through the resin extrusion heater nozzle unit 193, detailed appearance and various colors can be realized rather than the block single lamination system.

The 3D model 190 can be easily converted into a voxel that is not difficult to design a graphic block so that the terminal 200 can design a 3D model 190 even in a mobile device other than a high- , And a terminal with high accessibility is sufficient.

The interior of the 3D model designed above is divided into blocks and the outside is divided into coloring and coating means to be automatically generated by a program rather than a user.

It is also possible to convert 3D model data of other formats into a block lamination method or a hybrid method (block lamination + coloring and coating means) by automatically remodeling through the program.

Hereinafter, the interior of the 3D model is built as a block at least as small as the actual model, and the outer shape is fused with the plastic wire by the resin extrusion method or sprayed repeatedly with the inkjet (fine coloring) and spray (wide range coloring) An interactive hybrid printing method using a 3D printer 100 in which an actual 3D model is completed and a block assembly program installed in a computer or a terminal 200 will be described.

Producing a block constituting the interior of the 3D model 190; A step of manually or automatically designing a 3D model 190 personalized by the computer or the terminal 200 by combining blocks of different colors, materials and shapes, and then manually or automatically designing a 3D model 190 of the hybrid 3D printer 100 The 3D model model design data and the 3D model 190 inside which the external communication means 170 receives the 3D printing object from the terminal and the computer 200 or the operation server 300 are blocks and the outside is colored and coated (Step S100).

The guide tube 130 of the 3D printer 100 continuously supplies molding blocks required in the design data from the block supplying means (reel, tray, bulk container, etc.) (S200).

A block supply means 195 for successively and continuously supplying blocks to the guide tube 130 connected to the header and driving device 140 for continuous supply of blocks and a block supplied from the guide tube 130, And the control unit 180 controls the position of the molded block supplied from the block supply unit 195 in order to make the interior of the 3D model 190 according to the control of the motion control unit 180, The 3D model 190 is stacked while being laid down by the block discharging means 120 provided in the header and the driving unit 140 at the designed coordinate position of the work table 110 at step S300.

In order to make the exterior of the 3D model 190, a plastic wire is melted and fused to a heater nozzle unit 193 of a resin extrusion type, or sprayed with a spray nozzle repeatedly, or repeatedly printed with an inkjet nozzle A coloring and coating step is performed (S400)

The bonding and fusing unit 150 of the 3D printer 100 fixes the formed blocks stacked by the header and the driving unit 140 at step S500.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is to be understood that various modifications and changes may be made without departing from the scope of the appended claims.

100: 3D printer 110: work table
115: Up / down direction moving means 120: Block discharging means
130: guide tube 140: header and drive device
150: bonding and fusing means 160: image processing means
170: External communication means 180: Motion control means
185: Cohesion and Coating Means 190: 3D Model
193: Resin extrusion heater nozzle part
194:
195: block supply means
200: terminal and computer
300: operational server 400: wired / wireless communication network

Claims (30)

A terminal and a computer 200 for designing a 3D model 190 and generating design data of the 3D model 190 designed;
The design data of the 3D model 190 designed from the terminal and the computer 200 to calculate the type and number of blocks to be used in the 3D model 190, An operation server 300 for accounting for the settlement amount;
The 3D model 190 receives the 3D model design data from the terminal and the computer 200 or the operation server 300 and supplies the blocks to the inside of the 3D model 190. The outside of the 3D model 190 is fused with resin extruded plastic A hybrid 3D printer 100; And
And a communication network (400) for transferring data between the terminal and the computer (200), the operation server (300), and the 3D printer (100) in a block stacking manner.
The method according to claim 1,
In the 3D printer 100 of the block stacking method,
An external communication means (170) of the 3D printer (100) receiving the design data of the 3D model (190) from the terminal and the computer (200) or the operation server (300);
A work table 110 having a work plate for stacking blocks formed according to the design data and printing the 3D model 190;
And a header and driving device (140) for placing and stacking blocks at corresponding designed positions of the 3D model (190) in operation on the work table (110)
A guide tube (130) for continuous supply of the molded block connected to the header and drive device (140);
Block supplying means 195 for sequentially supplying (supplying) the formed block to the guide tube 130 in a sequential manner;
A block discharging means (120) installed in the header and driving device (140), selecting the molded block supplied through the guide tube (130), and dropping the selected molded block to a work table;
A resin extrusion heater nozzle unit 193 for melting the plastic wire type resin supplied from the resin supply unit 194 and fusing the molded resin to the outside of the 3D model 190 in which the molded blocks are stacked; And
And a bonding and fusing unit (150) for fixing the formed blocks placed at the designed position by the header and the driving unit (140).
3. The method of claim 2,
The resin extrusion heater nozzle portion 193
A coating spray nozzle part, or an ink jet nozzle part for coloring or coating.
3. The method of claim 2,
The hybrid 3D printer 100 includes:
An image processing means (160) for explicitly extracting a position coordinate of a 3D model being worked on in the work table (110) through image processing; And
And motion control means (180) for receiving position coordinate information from the image processing means (160) and performing precise control of the header and driving device (140) so that the formed block can be accurately placed Wherein the 3D printing system is a hybrid type 3D printing system.
3. The method of claim 2,
The bonding and fusing means (150)
After the block stacking operation for the final layer is completed, the completed 3D model 190 (190) is mounted on the work table 110, the double-sided tape is attached on the work table 110, Is lifted to separate the double-sided tape from the work table (110).
3. The method of claim 2,
A block of the block supply means 195 is connected to the header and the drive unit 140 by one guide tube 130 and the block of the block supply unit 195 is connected to the header and drive unit 140 through the guide tube 130. [ To the apparatus (140). ≪ Desc / Clms Page number 24 >
3. The method of claim 2,
Since the guide tube 130 is physically connected to the header and the driving device 140 and moves, the guide tube 130 is made of a flexible material,
Wherein the guide tube (130) has sufficient internal clearance to allow movement of the block within the guide tube (130).
3. The method of claim 2,
Wherein a plurality of guide tubes (130) are connected between the block supply means (195) and the header and driving device (140), and the molded blocks of different sizes, colors and materials are simultaneously supplied. 3D printing system.
3. The method of claim 2,
Wherein a block of the block supply means 195 is formed in a bowl shape and a block is inserted into the pawl and vibration is applied to transfer the components one by one to the guide tube 130 one by one. 3D printing system.
3. The method of claim 2,
The block supplying means 195 is installed at a position higher than the header and the driving device 140 so that the molded blocks are sequentially fed one by one under the force of gravity, The 3D printing system according to claim 1,
3. The method of claim 2,
When the block supplying means 195 is installed at a position lower than the header and the driving unit 140, the block is forcefully fed one by one and continuously fed through the guide tube 130 It is a hybrid 3D printing system.
3. The method of claim 2,
A bulk feeder filled with the block, a stick feeder containing the blocks in order; Wherein the guide tube (130) and the block feeding means (195) are integrated with each other and mounted on the header and the driving device (140). 3D printing system.
3. The method of claim 2,
The block discharging means (120)
Means for aligning and positioning the molded block conveyed from the guide tube (130) at the lower end of the header and drive device (140); And means for pushing the molded block aligned in the direction of the work table (110) through the discharge port (121).
3. The method of claim 2,
The bonding and fusing means (150)
A block supplied from the guide tube 130 is selected and a block discharged through the block discharging means 120 which is lowered to the work table 110 is discharged and laminated to a corresponding designed position of the 3D model 190 And a means for transferring the adhesive to the lower portion of the block.
3. The method of claim 2,
Characterized in that it is a means for injecting or spraying an adhesive to the header and the driving device (140) at a position where the block is placed before releasing the molded block to a corresponding designed position of the 3D model (190) Hybrid 3D printing system.
3. The method of claim 2,
The bonding and fusing means (150)
Characterized in that an adhesive is previously injected or sprayed onto the entire working plate of the 3D model (190) or the entire area where the block is stacked, before starting to stack the formed block with the header and the driving device (140) A hybrid 3D printing system.
17. The method according to any one of claims 14 to 16,
The bonding and fusing means (150)
Further comprising an ultraviolet LED lamp or a thermosetting means for promoting curing of the adhesive.
3. The method of claim 2,
The molded block
Wherein the adhesive surface is pre-bonded with an adhesive or bonded with an ultraviolet (UV) curable adhesive.
The method according to claim 2, wherein
The bonding and fusing means (150)
The bonding material may be applied each time the blocks are stacked or the bonding material may be coated after the stacking of the 3D model 190 is completed, or in the case of a plastic material, the molded block may be subjected to ultrasonic welding And a fixing unit for fixing the fixing unit to the fixing unit.
The method according to claim 2, wherein
A dispenser serving as a means for scanning or spraying an adhesive material at a position where the molded block is lowered is installed in the header and driving device 140 so that the 3D model 190 being assembled in the work table 110, Wherein the adhesive material is injected or sprayed to the corresponding position before the block is placed at the corresponding designed position of the 3D printing system.
The method of claim 3, wherein
The inside of the 3D model 190 is smaller than the actual 3D model by the molded block and the outside of the 3D model 190 is fused with the plastic wire through the resin extrusion heater nozzle part 193, And repeating spraying of the paint to color the narrow range color through the inkjet nozzle unit to complete the 3D model (190) in an actual size.
The method of claim 3, wherein
The header and driving device 140
Wherein the resin extrusion heater nozzle unit (193), the paint spray nozzle unit, and the inkjet nozzle unit are installed in one unit.
The method of claim 3, wherein
The header and driving device 140
The header for block stacking and the resin extrusion heater nozzle portion 193 are mounted and the cutting headers are additionally installed in each or one unit so that when the 3D model 190 block stacking and coloring and coating are completed, And a 3D model is processed by switching to a header and a driving device for a hybrid type 3D printing system.
5. The method of claim 4,
The hybrid 3D printer 100 includes:
The header and driving device 140 transfer the designated blocks to the designed coordinate position under the control of the motion control means 180 and stack all the blocks of the corresponding layer through the process of releasing the blocks, Characterized in that as the motion control means (180) controls the height (Z-axis) of the header and drive device (140) with a layer block stack height, the header and drive device (140) 3D printing system.
5. The method of claim 4,
The hybrid 3D printer 100 includes:
A longitudinal movement means 115 for making the 3D model 190 having a long length by controlling movement of the work table 110 in the longitudinal direction with respect to the motion control means 180 and the header and driver 140 The 3D printing system of claim 1, further comprising:
3. The method of claim 2,
The shape of the molded 3D model 190 stacked above the 3D model 190 may be laminated to be larger than the 3D model 190 actually designed. The plastic wire may be melted and melted by a heater nozzle of a resin extrusion method, or sprayed with a spray nozzle , Or inkjet nozzles to make a size somewhat larger than the 3D model 190 actually designed, and then a means for automatic correction in the program is added to the CNC equipment after the lamination, and the CNC equipment is completed with the 3D model 190 Wherein the 3D printing system is a hybrid type 3D printing system.
3. The method of claim 2,
After the 3D model 190 of the work table 110 is stacked with the header and the driving device 140, the header and the driving device 140 are converted into cutting tools, So that the 3D printing system of the hybrid type is cut.
3. The method of claim 2,
The header and driver 140
`Header and drive unit mode for block stacking and coloring / coating`, and `Header and drive unit mode for cutting`, and is driven by a dual header system. The `header for block stacking and coloring / , The 3D model (190) is machined in the cutting head and drive mode when the 3D block (190) is completed by stacking, coloring and coating the formed block in the 3D model Printing system.
3. The method of claim 2,
A supporter for supporting the molded block is provided at the corresponding position when the molded block is to be piled up in the air in accordance with the 3D shape 190. In addition to the motion in the Z direction, Wherein the supporter is configured to be tilted so that the supporter is removed.
In the hybrid printing method using the 3D printer 100,
(a) fabricating a block having different shapes of color, material and shape through the 3D printer 100 or an external device;
(b) designing the 3D model 190 by combining the molded block with the terminal and the computer 200;
(c) The 3D printer 100 in the stacked form is 3D-printed from the terminal and the computer 200 or the operation server 300 via the external communication means 170. [ Receiving design data of the model (190);
(d) a guide tube (130) for continuously transferring blocks by connecting the block supply means (195) of the 3D printer (100) of the block stack type to the header and the drive device (140) Receiving and feeding blocks from the block supply means 195;
(e) The motion control means 180 controls the header and the driving device 140, which are sequentially supplied with the blocks sequentially through the guide tube 130, Stacking the 3D model 190 while stacking the blocks at the designed coordinate position of the work table 110 with the header and drive unit 140 of the driving device 140 laying it down;
(f) fixing the molded blocks stacked by the header and the driving device (140) by the bonding and fusing means (150) of the 3D printer (100); And
(g) In order to make the outside of the 3D model 190, the resin extrusion heater nozzle portion 193 melts and fuses the plastic wire, or the resin extrusion heater nozzle portion 193 is repeatedly sprayed with the spray nozzle portion paint, Or a step of coloring and coating the inkjet nozzle part through a process of repetitively printing the paint.

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