KR101690149B1

KR101690149B1 - Three-Dimensional Printer enabling easily separation of support

Info

Publication number: KR101690149B1
Application number: KR1020150048795A
Authority: KR
Inventors: 성정훈
Original assignee: 성정훈
Priority date: 2015-03-25
Filing date: 2015-04-07
Publication date: 2016-12-27
Also published as: KR20160115632A

Abstract

The present invention relates to a three-dimensional printer, and more particularly, to a three-dimensional printer, which comprises a base plate and a conveying means provided on the base plate so as to be movable in three axial directions, and a conveying means provided on one side of the conveying means, A first extrusion means for forming an object to be processed and a support provided on the other side of the transfer means for extruding the second material onto the base plate to support the object in the lower portion of the region where the object is expected to be stuck And second extruding means for performing extrusion.
According to the present invention as described above, the support forming material to be extruded in the boundary region between the object to be processed and the support is hardened prior to the object to be processed, so that the support can be more easily separated from the object to be processed, do.
Further, by using a water-soluble material such as a material whose melting point is lower than that of the object to be processed, the support can be more easily separated from the object by a simple method, and the productivity of the object to be processed is improved.

Description

[0001] The present invention relates to a three-dimensional printer capable of easily separating supports,

More particularly, the present invention relates to a three-dimensional printer capable of easily separating a support from a workpiece by extruding a material for forming an object to be processed and a material for forming a support through a plurality of extrusion means, The present invention relates to a three-dimensional printer in which support can be easily separated.

Generally, a three-dimensional printer is a device that processes a continuous layer of a material such as a two-dimensional printer to produce an object by stacking it.

Conventionally, a three-dimensional printer has been used for the purpose of modeling or preparing a sample prior to mass production of a product. Recently, however, a technical basis that can be used for mass production of a product capable of mass production centering on small- It is expanding.

The product molding method of the above-described three-dimensional printer includes a method of extruding and laminating thermoplastic plastics, a method of injecting a laser beam into a water tank (vat) containing a liquid photocurable resin, A method in which a water tank is lowered by a layer thickness and a laser is injected again to mold a three-dimensional structure, a method of forming a three-dimensional structure by hardening a layer of resin while projecting light of a shape to be molded in a liquid state photo- And a method of forming a three-dimensional structure by extruding a color ink and a curing substance (binder) in a liquid state from a nozzle of a printer head using a printer principle into a powder raw material.

Among them, a method of extruding and laminating thermoplastic plastics is a method of laminating one identical liquefying raw material (plastics, wax, metal, etc.) to a specified range to complete an object to be processed. FFF (Fused Filament Fabrication) or FDM ) And is the most widely used method.

In the FFF (Fused Filament Fabrication) or FDM (Fused Deposition Modeling) method as described above, streaks may occur in an arbitrary region of the object to be processed due to the method of forming the object by laminating the liquefied materials.

For this reason, a support for supporting the flaw generation region of the object to be processed is formed integrally with the object to be machined in a region where fretting of the object is expected.

However, in the conventional FFF (Fused Filament Fabrication) or FDM (Fused Deposition Modeling) method, a liquefied raw material having the same melting point is extruded through one extruder into a forming object and a support using a liquefying raw material having the same melting point It is very difficult to remove the support from the object to be processed which has been cured and has been manufactured.

Further, in the process of removing the support from the object to be processed, a part of the object to be processed together with the support falls off, thereby damaging the object.

Korean Patent Publication No. 2015-0027494 " Three-dimensional printer "

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems as described above. It is an object of the present invention to provide an apparatus and a method for separating a material for forming an object by a plurality of extrusion means and a support separator And a three-dimensional printer.

Further, there is provided a three-dimensional printer which is further provided with curing means for injecting air into a support forming material extruded into a boundary region between the object to be processed and a support so as to cure the support forming material before the object to be processed, have.

Another object of the present invention is to provide a three-dimensional printer in which a support forming material is made of a material having a lower melting point than that of a material to be processed or a water-soluble material.

According to an aspect of the present invention for achieving the above object, there is provided a method of manufacturing a semiconductor device, including: a base plate; transfer means installed on the base plate in a movable manner in three axial directions; A first extrusion means for forming an object to be processed and a support provided on the other side of the transfer means for supporting the object to be processed in a lower portion of a region where extrusion of the object is expected, And a second extruding means for forming a second extruder.

The image forming apparatus may further include a curing unit installed at one side of the second extrusion unit and curing the second material by injecting air into the second material to be extruded onto the base plate, It is preferable that air is sprayed to the second material to be extruded in a region which is a boundary with the material to harden the second material.

The second material is preferably made of a material having a lower melting point than that of the first material or a material having a water-soluble property.

The first extruding unit may include a first discharging unit formed with a first discharging channel into which the first material flows and having a first discharging hole formed at the leading end thereof and communicating with the first discharging channel, And a heating portion provided on one side of the outer surface of the distal end portion.

The second extruding unit may include a second extruding unit having a filling space filled with the second material therein, a second discharging unit having a second discharging hole formed at a distal end thereof and communicating with the filling space, A storage unit in which a storage space for storing a material is formed and which is connected to the storage space and the filling space and a power supply unit that is provided at an upper portion of the storage space and that supplies power to the pressing unit, And the like.

A plurality of guide bars installed at predetermined intervals around the base plate and extended to the upper portion of the base plate and a plurality of up and down moving blocks vertically movably installed in the plurality of guide bars, A transfer block for providing a mounting region of the first extrusion means and the second extrusion means on the bottom surface of the base block, And a turning bar coupled to the plurality of up and down moving blocks in such a manner as to be rotatable, respectively, and rotatably coupled to one side of the conveying block whose other ends are spaced apart from each other by a predetermined distance.

According to the present invention as described above, the support forming material to be extruded in the boundary region between the object to be processed and the support is hardened prior to the object to be processed, so that the support can be more easily separated from the object to be processed, do.

Further, by using a water-soluble material such as a material whose melting point is lower than that of the object to be processed, the support can be more easily separated from the object by a simple method, and the productivity of the object to be processed is improved.

1 is a schematic view of a three-dimensional printer in which support separation is easy according to an embodiment of the present invention.
FIG. 2 is a schematic view showing a first extrusion means of a three-dimensional printer in which support separation is easy according to an embodiment of the present invention.
FIG. 3 is a schematic view showing a second extrusion means of a three-dimensional printer in which support separation is easy according to an embodiment of the present invention.
FIG. 4 illustrates a process of forming an object using a three-dimensional printer which can easily separate supports according to an embodiment of the present invention.
FIG. 5 illustrates an object to be processed produced using a three-dimensional printer which is easy to separate and support according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the drawings. It is to be noted that like elements in the drawings are represented by the same reference numerals as possible. Further, detailed description of known functions and configurations that may unnecessarily obscure the gist of the invention will be omitted.

FIG. 1 is a schematic view of a three-dimensional printer in which support separation is easy according to an embodiment of the present invention, FIG. 2 is a view showing a first extrusion means of a three-dimensional printer in which support separation is easy according to an embodiment of the present invention FIG. 3 is a schematic view showing a second extruding unit of a three-dimensional printer in which support separation is easy according to an embodiment of the present invention.

Referring to FIGS. 1 to 3, a three-dimensional printer 1 which can easily separate supports according to an embodiment of the present invention includes a base plate 10, a conveying unit 20, a first extruding unit 30, 2 extruding means (40) and a curing means (50).

The base plate 10 is provided in the work area and is extruded from a first material 31c which is extruded from a first extruding means 30 described later and forms an object to be processed and a second extruding means 40 to be described later, And a second material (41c) forming a support for preventing the object from being stuck.

The conveying means 20 is provided at the upper portion of the base plate 10 so as to be movable in three axial directions and serves to move the first extruding means 30 and the second extruding means 40 described later in three axial directions And includes a guide bar 21, a vertical movement block 22, a vertical movement force supply (not shown), a transfer block 23, and a rotation bar 24.

Three guide bars 21 are provided at predetermined intervals around the base plate 10 and extended to the upper portion of the base plate 10 to guide the up and down moving blocks 22 to be described later .

The up-and-down moving block 22 is coupled to the three guide bars 21 so as to be vertically movable.

The up-and-down movement force providing unit (not shown) provides the up-down movement block 22 with a vertical movement force.

The transfer block 23 is provided at a predetermined distance above the base plate 10 and provides a region on the bottom surface where the first extrusion means 30 and the second extrusion means 40 are installed.

One end of the pivot bar 24 is rotatably coupled to each of the three vertically movable blocks 22 and the other end of the pivot bar 24 is rotatably coupled to one side of the transfer block 23 spaced apart by a predetermined distance.

The conveying means 20 moves the conveying block 23 in the vertical direction by simultaneously raising and lowering the three up-and-down moving blocks 22 due to the above-mentioned structure, and the first and second pushing-out means 30 and 40) can be moved up and down. By moving one or both of the three up-and-down moving blocks 22 up and down to move the conveying block 23 back and forth / left and right, And the second extruding means 40 in the forward, backward, left and right directions.

The first extrusion means 30 is provided at one side of the bottom surface of the transfer block 23 to form an object to be processed by extruding the first material 31c onto the base plate 10, And a heating unit 32. [0035]

The first discharging portion 31 includes a first inlet 31a into which the first material 31c flows and a first outlet 31b communicating with the first inlet 31a at the front end thereof. .

The first material 31c is made of a synthetic resin material such as PLA (Poly Lactacid) or ABS (Acrylonitrile Butadiene Styrene Resin), and is formed into a filament shape by a first inlet 31a of the first outlet 31 &Lt; / RTI >

Although not shown in the drawing, a separate pressurizing unit (not shown) for pushing the first material 31c flowing into the first inflow passage 31a toward the tip of the first discharge unit 31 Respectively.

The second extrusion means 40 is provided on the other side of the bottom surface of the transfer block 23 to extrude the second workpiece 41c on the base plate 10 so that the workpiece And includes a second discharge portion 41, a storage portion 42, a pressing portion 43, and a power portion 44. The second discharge portion 41 is provided with a second discharge portion 41,

The second discharge portion 41 is formed with a filling space 41a filled with the second material 41c and a second discharge hole 41b formed at the leading end thereof to communicate with the filling space 41a.

The storage unit 42 has a top opening and a storage space in which the second material 41c is stored. The storage space is connected to the filling space 41a.

The pressing part 43 is installed on the upper part of the storage space and presses the second material 41c downward so that the second material 41c stored in the storage space of the storage part 42 is pressed against the second discharge part 41 And flows into the filling space 41a.

The power section 44 is provided at one side of the pressing section 43 and serves to provide power to the pressing section 43. [

The curing means 50 is provided at one side of the second extrusion means 40 and injects air to the second material 41c extruded from the second extrusion means 40 to the upper portion of the base plate 10, And serves to cure the nozzle portion 41c. The nozzle portion 51 and the supply pipe 52 are included.

The nozzle unit 51 is provided on one side of the front end side of the second extrusion means 40 and injects air into the second material 41c extruded from the second extrusion means 40 to the upper portion of the base plate 10, 2 material 41c.

The supply pipe 52 provides a path through which air supplied from unshown air supply means (not shown) is supplied to the nozzle unit 51.

Particularly, the curing means 50 injects air into the second material 41c, which is extruded in the region between the first material 31c forming the object to be processed and the second material 41c forming the support, 2 material 41c is cured.

The second material 41c is preferably made of a material having a melting point lower than that of the first material 31c or a water-soluble material, and either clay, sugar or chocolate may be used.

FIG. 4 illustrates a process of forming an object to be processed using a three-dimensional printer which can easily separate supports according to an embodiment of the present invention. FIG. 5 is a cross- Dimensional object to be processed by using a 3D printer.

Referring to FIGS. 4 and 5, a three-dimensional printer 1 with easy support separation according to an embodiment of the present invention includes a first material 31c for forming a workpiece P and a second material 31c for forming a support, The material 41c is extruded individually through the first extruding means 30 and the second extruding means 40 and the extruded material is extruded in the region of the boundary between the first material 31c and the second material 41c The object P and the support S can be stuck to each other after the fabrication of the object P is completed by causing the second material 41c to cure before the first material 31c by injecting air into the second material 41c, The object to be processed P and the support S can be separated easily from each other.

The first material 31c forming the object P is made of a synthetic resin material such as PLA (Poly Lactacid) or ABS (Acrylonitrile Butadiene Styrene Resin), and the second material 31c 41c are made of clay, sugar or chocolate having a melting point lower than that of the first material 31c or a water-soluble material so that the melting point of the object P is lower than that of the object P after completion of the production of the object P And the support S is immersed in the aqueous solution to dissolve the support S in the aqueous solution so that the support S can be easily separated from the object P S can be easily separated into the object P to be processed.

As described above, according to the present invention, in the process of separating the support S from the object P after the object P is manufactured, the support S is separated together with a part of the object P, The support S can be more easily separated from the object P by a simple method and the productivity of the object P is greatly improved.

Although the present invention has been described in connection with the preferred embodiments, it is possible to make various modifications and variations without departing from the spirit and scope of the invention. It is, therefore, to be understood that the appended claims will include all such modifications and changes as fall within the true spirit of the invention.

1: Three-dimensional printer with easy support separation
10: Base plate
20: conveying means 21: guide bar
22: vertical moving block 23: moving block
24: rotating bar 30: first extruding means
31: first discharging portion 31a: first discharging portion
31b: first discharge hole 31c: first material
32: heating section 40: second extruding means
41: second discharge portion 41a: filling space
41b: second exhaust hole 41c: second material
42: Storage part 43:
44: power section 50: curing means
51: nozzle unit 52: supply pipe
P: object to be processed S: support

Claims

A base plate;
Conveying means provided on the base plate so as to be movable in three axial directions;
A first extrusion means provided at one side of the transfer means for forming an object to be processed by extruding the first material onto the base plate;
And second extrusion means provided on the other side of the transfer means for forming a support for supporting the object to be processed in the lower portion of the area where the object to be processed is expected to be extruded by extruding the second material onto the base plate,
Further comprising curing means provided at one side of the second extrusion means and curing the second material by injecting air to the second material to be extruded onto the base plate,
Wherein the curing means cures the second material by injecting air to the second material to be extruded in a region bounded by the first material.

delete

The method according to claim 1,
Wherein the second material is a material having a melting point lower than that of the first material or an aqueous material.

The method according to claim 1,
The first extrusion means
A first discharge port having a first discharge port through which the first material flows and a first discharge port communicated with the first discharge port at a tip end thereof;
And a heating unit installed at one side of the outer surface of the leading end of the first discharging unit.

The method according to claim 1,
The second extrusion means
A second discharge unit having a filling space filled with the second material therein and having a second discharge hole communicating with the filling space at a tip thereof;
A storage portion in which an upper portion is opened, a storage space in which the second material is stored is formed, and the storage space communicates with the filling space;
A pressing part installed on the upper part of the storage space and pressing the second material;
And a power unit for supplying power to the pressing unit.

The method according to claim 1,
The conveying means
A plurality of guide bars spaced apart from each other around the base plate and extending to the upper portion of the base plate;
A plurality of vertically moving blocks each of which is installed to be vertically movable on the plurality of guide bars;
A vertical movement force providing unit for providing a vertical movement force to the plurality of up and down movement blocks;
A transfer block provided at an upper portion of the base plate so as to be spaced apart from the base plate and providing an installation area of the first extrusion means and the second extrusion means on a bottom surface thereof;
And a rotating bar rotatably coupled to the plurality of up-and-down moving blocks at one end and rotatably coupled to one side of the conveying block at the other end spaced apart by a predetermined distance.