WO2022010032A1

WO2022010032A1 - Smart heat-resistant fusion laminator

Info

Publication number: WO2022010032A1
Application number: PCT/KR2020/012013
Authority: WO
Inventors: 이성웅
Original assignee: 지니코딩에듀(주)
Priority date: 2020-07-09
Filing date: 2020-09-07
Publication date: 2022-01-13

Abstract

The present invention relates to a smart heat-resistant fusion laminator capable of expanding the range of choices of materials and outputting printed matter with improved durability, the smart heat-resistant fusion laminator comprising: a plurality of fixing walls in the form of polygonal cylinders in which a nozzle unit and a bed are disposed; a door wall which covers open portions of the fixing walls; a lower horizontal plate; and an upper horizontal plate, wherein each of the door wall, the lower horizontal plate, and the upper horizontal plate has a form in which an insulating material and a metal plate are laminated in order on one surface of another metal plate, and each of the fixing walls has a form in which an insulating material and a metal plate are laminated in order on both sides around a hot wire coil layer on which a hot wire coil is disposed.

Description

Smart Heat Resistant Fusion Laminator

The present invention relates to a smart heat-resistant fusion laminator capable of expanding the range of material selection and outputting more durable output.

In the early 1980s, 3D printers have been developed in various ways since the method of making three-dimensional objects by solidifying plastic liquids was first proposed by 3D Systems in the United States in the early 1980s. Developed from the initial stage limited to plastic materials, nylon and metal materials are now used as output materials for 3D printers, and with increased precision, they are also used as equipment to produce customized medical devices.

3D printers are largely divided into FDM (Fused Deposition Modeling), SLA (Stereolithography Apparatus), SLS (Selective Laser Simtering), and DLP (Direct Light Processing) methods according to the method of creating three-dimensional printouts.

Among the above various 3D printing methods, the SLA method developed in 1986 by 3D Systems and the FDM method developed in 1989 by Stratasys are the most commonly used. Because of its simple structure and low price, it is widely used for educational and personal purposes.

The FDM method is a method of laminating plastic filaments such as PLA (Poly Latic Acid) or ABS (Acryontrie Butadiene Styrene) by melting them in the printer head. More specifically, it creates a three-dimensional shape by stacking the melted and ejected plastic filaments in layers of 0.01 to 0.08 mm thinner than paper.

In general, the FDM type 3D printer consists of a printer head that melts and discharges the output material, a bed on which the discharged output material is accumulated, and a driving unit for moving the print head and the bed.

In a three-dimensional Cartesian coordinate system, a two-dimensional print is created by moving the print head and bed along the x-axis and y-axis to print the output material. In the above state, if the print head or bed is moved in the z-axis to print a new layer on top of the existing output, a three-dimensional output having a height in the z-axis is created. The printing principle of the FDM-type 3D printer is to create a three-dimensional shape of a desired shape by repeating the above operation.

The FDM type 3D printer as described above is a well-known technology in the prior art, and Korean Patent Publication No. 10-2009-0119904 "Method for creating a three-dimensional object using a modified ABS material" and Korean Patent Publication No. 10-2015-0089240 arc "3D printer" and the like.

On the other hand, in the case of most of the currently manufactured prosthetic legs, all processes are performed manually, and due to the manual work, the production period is long, and when correction is required in the manufacturing process, it is difficult to modify it, so it is inconvenient to produce it again.

That is, the manual prosthetic leg manufacturing process requires cumbersome processes using gypsum, such as the process of cutting the user's application part, manufacturing the frame, and manufacturing the socket that fits the frame.

If a 3D printer is used to produce such a prosthetic leg, it will be possible to secure a new avenue in the prosthetic leg market by resolving the problems that occur in the existing manual prosthetic manufacturing process and reducing the burden between users and manufacturers.

However, the existing FDM-type 3D printer has a narrow selection of filaments as an output material due to the limitations of nozzles, beds, and internal temperatures (mostly printing using PLA and ABS filaments). Due to the nature of the output method of stacking layers, the bonding strength is somewhat low (as shown in FIG. 4, the layer below hardens before the next layer goes up, the bonding strength between layers decreases.) The durability of the final output is weak.

Due to the problem of the conventional FDM method, if a 3D printer is used to produce a prosthetic leg, the printed prosthetic leg is weak in durability and you do not know when it will be damaged. don't

The present invention has been devised to solve the problems of the prior art as described above, and it is an object of the present invention to provide a smart heat-resistant fusion laminator capable of outputting an output with improved durability and a wider selection of materials.

In order to solve the above problems, the present invention is a smart heat-resistant fusion laminator comprising a nozzle unit for melting and discharging the output material, and a bed on which the output material discharged from the nozzle unit is stacked: the nozzle unit and the bed A plurality of fixing walls disposed to form a part of the polygonal shape positioned inside to form a chamber with one side open, a door wall provided for opening and closing the open side of the chamber, the chamber a lower horizontal plate blocking the lower portion, and an upper horizontal plate blocking the upper portion of the chamber; Each of the door wall, the lower horizontal plate, and the upper horizontal plate is a form in which an insulating material and another metal plate are sequentially stacked on one surface of a metal plate; Each of the wall for fixing is in the form of sequentially stacked insulators and metal plates on both sides around the hot wire coil layer on which the hot wire coil is disposed; is characterized by

In the above, it is preferable that the nozzle part has a water cooling type cooling structure.

As described above, the present invention can provide a smart heat-resistant fusion laminator that can expand the selection of materials and output an output with improved durability.

In addition, it is possible to output a prosthetic leg having sufficient durability to enable practical use by the smart heat-resistant fusion laminator of the present invention.

Thereby, the process of printing prosthetic legs, etc. can be simplified, and correction printing is very easy even when the output does not fit the user.

In addition, while the plaster mold used in the production of the existing prosthesis is used only once, the method of scanning the affected area through a 3D scanner is saved as a file, so it can reduce the hassle and time of re-creating the plaster mold at the time of replacing the prosthetic leg. have.

Therefore, it is possible to reduce the fatigue of the manufacturer due to the production of the prosthetic leg, to lower the high manufacturing cost due to manual work, to reduce the burden of replacement cost for the user, and to increase the sales profit rate of the manufacturer.

1 is a side conceptual view of a smart heat-resistant fusion laminator according to an embodiment of the present invention;

Figure 2 is a conceptual view of the reference cross-section A-A of Figure 1;

3 is a conceptual diagram of a lamination fusion method according to an embodiment of the present invention;

4 is a conceptual diagram of an output method of an FDM printer according to the prior art.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily carry out the present invention. However, the present invention may be embodied in several different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are given to similar parts throughout the specification.

Throughout the specification, when a part "includes" a certain element, it means that other elements may be further included, rather than excluding other elements, unless otherwise stated.

1 is a schematic side view of a smart heat-resistant fusion laminator according to an embodiment of the present invention, FIG. 2 is a schematic cross-sectional view AA of FIG. 1, and FIG. 3 is a conceptual diagram of a lamination fusion method according to an embodiment of the present invention. .

This embodiment relates to a chamber type 3D printer (hereinafter referred to as "smart heat-resistant fusion laminator".).

In order to configure the chamber shape, a polygonal cylinder shape is formed by the door wall 120 and the plurality of fixing walls 110 .

The plurality of fixing walls 110 are arranged to form a part of a polygonal tubular shape while forming a chamber shape with one side open.

In this embodiment, the three fixing walls 110 are arranged to form a part of the rectangular cylinder shape.

The door wall 120 is provided to open and close one open side of the chamber.

One side of the door wall 120 is hinged to any one of the fixing walls 110 to open and close one open side of the chamber.

Accordingly, a chamber in the form of a square column is formed by the three fixing walls 110 and the door walls 120 .

The lower part of the chamber is blocked by the lower horizontal plate 130 , and the upper part of the chamber is blocked by the upper horizontal plate 140 .

In this way, a chamber that is a closed space by the lower horizontal plate 130, the door wall 120, the plurality of fixing walls 110, and the upper horizontal plate 140 can be formed, and the smart heat-resistant fusion inside the chamber The main driving part of the laminator is arranged.

That is, a nozzle unit for melting and discharging the output material and a bed on which the output material discharged from the nozzle unit is accumulated are located inside the chamber.

In addition, a driving means for moving the nozzle unit or the bed is also located inside the chamber.

Meanwhile, each of the door wall 120 , the lower horizontal plate 130 , and the upper horizontal plate 140 has a form in which the insulating material 102 and the other metal plate 103 are sequentially stacked on one surface of the metal plate 101 .

In order to increase the heat insulation effect in this embodiment, the door wall 120, the lower horizontal plate 130, and the upper horizontal plate 140, respectively, are insulated on one surface of the metal plate 101 and the other metal plate 101. , another insulating material 102, and another metal plate 101 are sequentially stacked.

Here, the insulating material 102 may adopt a glass wool insulating material.

On the other hand, each of the fixing walls 110 has a form in which the heat insulating material 102 and the metal plate 101 are respectively stacked on both sides around the hot wire coil layer 103 on which the hot wire coil is disposed.

Here, the insulating material 102 may adopt a glass wool insulating material.

Therefore, the temperature inside the chamber can be maintained at 80° C. to 100° C. by the heat emitted from the hot wire coil layer 103 of the fixing wall 110 .

As a result, the choice of filaments requiring high temperatures such as ABS (Acrylonitrile-Butadiene-Stryene), PLA (Poly Lactic Acid), PETG (PolyEthylene Terephthalate Glycol), carbon, Ultem, etc. have.

In addition, due to the output in a high temperature environment, it is possible to prevent the layer below from hardening before the new layer is raised as shown in FIG. 3 , so that the bonding force between the layers is increased, thereby improving the durability of the outputted product.

Therefore, as an output of the present invention, a prosthetic leg body having the same strength or durability as a conventional manual prosthetic leg product can be output.

On the other hand, it is preferable that the nozzle part has a water cooling type cooling structure.

In this embodiment, the nozzle part is designed to withstand a maximum temperature of 600 ° C. Despite this design, a water-cooled cooling structure is introduced to prevent the filament from flowing down caused by high-temperature output and to increase the life expectancy of the nozzle. .

The above description of the present invention is for illustration, and those of ordinary skill in the art to which the present invention pertains can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a dispersed form, and likewise components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention. do.

The present invention can be used as a 3D printer that has a wide selection of materials and can improve the durability of printed products.

Claims

In a smart heat-resistant fusion laminator comprising a nozzle unit for melting and discharging the output material, and a bed on which the output material discharged from the nozzle unit is stacked:

A plurality of fixing walls disposed to form a part of a polygonal cylinder shape in which the nozzle unit and the bed are located to form a chamber with one side open, a door provided to open and close the one side open side of the chamber a wall for use, a lower horizontal plate blocking the lower portion of the chamber, and an upper horizontal plate blocking the upper portion of the chamber;

Each of the door wall, the lower horizontal plate, and the upper horizontal plate is a form in which an insulating material and another metal plate are sequentially stacked on one surface of a metal plate;

Each of the wall for fixing is in the form of sequentially stacked insulators and metal plates on both sides around the hot wire coil layer on which the hot wire coil is disposed; Smart heat-resistant fusion laminating machine, characterized by.
The method of claim 1,

Smart heat-resistant fusion laminator, characterized in that the nozzle unit has a water-cooled cooling structure.